From b08d5a8fb42f4586d756068065186b5af7e48dad Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 26 Jul 2005 05:00:05 +0000 Subject: [PATCH 1/1] Adjust for monotone. --- .cvsignore | 7 + ABOUT-NLS | 588 +++ AUTHORS | 2 + COPYING | 162 + COPYING.GPL | 340 ++ CREATE-MINI | 47 + ChangeLog | 112 + GPG-KEY | 33 + INSTALL | 182 + Makefile.am | 36 + NEWS | 786 ++++ NOTES | 73 + README | 6 + THANKS | 5 + TODO | 168 + config/.cvsignore | 1 + config/ChangeLog | 53 + config/Makefile.am | 38 + config/config.guess | 1459 +++++++ config/config.sub | 1549 +++++++ config/depcomp | 436 ++ config/elfutils.spec.in | 385 ++ config/install-sh | 251 ++ config/missing | 336 ++ config/mkinstalldirs | 101 + configure.ac | 276 ++ doc/.cvsignore | 1 + doc/ChangeLog | 12 + doc/Makefile.am | 29 + doc/elfutils.sgml | 444 ++ fake-src/FULL | 3 + fake-src/Makefile.am | 24 + fake-src/Makefile.in | 390 ++ fake-src/addr2line | 2 + fake-src/dwarf.h | 557 +++ fake-src/elflint.in | 4 + fake-src/nm | 2 + 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100644 index 0000000..7e121c5 --- /dev/null +++ b/ABOUT-NLS @@ -0,0 +1,588 @@ +Notes on the Free Translation Project +************************************* + + Free software is going international! The Free Translation Project +is a way to get maintainers of free software, translators, and users all +together, so that will gradually become able to speak many languages. +A few packages already provide translations for their messages. + + If you found this `ABOUT-NLS' file inside a distribution, you may +assume that the distributed package does use GNU `gettext' internally, +itself available at your nearest GNU archive site. But you do _not_ +need to install GNU `gettext' prior to configuring, installing or using +this package with messages translated. + + Installers will find here some useful hints. These notes also +explain how users should proceed for getting the programs to use the +available translations. They tell how people wanting to contribute and +work at translations should contact the appropriate team. + + When reporting bugs in the `intl/' directory or bugs which may be +related to internationalization, you should tell about the version of +`gettext' which is used. The information can be found in the +`intl/VERSION' file, in internationalized packages. + +INSTALL Matters +=============== + + Some packages are "localizable" when properly installed; the +programs they contain can be made to speak your own native language. +Most such packages use GNU `gettext'. Other packages have their own +ways to internationalization, predating GNU `gettext'. + + By default, this package will be installed to allow translation of +messages. It will automatically detect whether the system already +provides the GNU `gettext' functions. If not, the GNU `gettext' own +library will be used. This library is wholly contained within this +package, usually in the `intl/' subdirectory, so prior installation of +the GNU `gettext' package is _not_ required. Installers may use +special options at configuration time for changing the default +behaviour. The command: + + ./configure --disable-nls + +will bypass any pre-existing `gettext' to _totally_ disable translation +of messages. + + The configuration process will not test for the `catgets' function +and therefore it will not be used. The reason is that even an +emulation of `gettext' on top of `catgets' could not provide all the +extensions of the GNU `gettext' library. + + Internationalized packages have usually many `po/LL.po' files, where +LL gives an ISO 639 two-letter code identifying the language. Unless +translations have been forbidden at `configure' time by using the +`--disable-nls' switch, all available translations are installed +together with the package. However, the environment variable `LINGUAS' +may be set, prior to configuration, to limit the installed set. +`LINGUAS' should then contain a space separated list of two-letter +codes, stating which languages are allowed. + +Using This Package +================== + + As a user, if your language has been installed for this package, you +only have to set the `LANG' environment variable to the appropriate +`LL_CC' combination. Here `LL' is an ISO 639 two-letter language code, +and `CC' is an ISO 3166 two-letter country code. For example, let's +suppose that you speak German and live in Germany. At the shell +prompt, merely execute `setenv LANG de_DE' (in `csh'), +`export LANG; LANG=de_DE' (in `sh') or `export LANG=de_DE' (in `bash'). +This can be done from your `.login' or `.profile' file, once and for +all. + + You might think that the country code specification is redundant. +But in fact, some languages have dialects in different countries. For +example, `de_AT' is used for Austria, and `pt_BR' for Brazil. The +country code serves to distinguish the dialects. + + The locale naming convention of `LL_CC', with `LL' denoting the +language and `CC' denoting the country, is the one use on systems based +on GNU libc. On other systems, some variations of this scheme are +used, such as `LL' or `LL_CC.ENCODING'. You can get the list of +locales supported by your system for your country by running the command +`locale -a | grep '^LL''. + + Not all programs have translations for all languages. By default, an +English message is shown in place of a nonexistent translation. If you +understand other languages, you can set up a priority list of languages. +This is done through a different environment variable, called +`LANGUAGE'. GNU `gettext' gives preference to `LANGUAGE' over `LANG' +for the purpose of message handling, but you still need to have `LANG' +set to the primary language; this is required by other parts of the +system libraries. For example, some Swedish users who would rather +read translations in German than English for when Swedish is not +available, set `LANGUAGE' to `sv:de' while leaving `LANG' to `sv_SE'. + + In the `LANGUAGE' environment variable, but not in the `LANG' +environment variable, `LL_CC' combinations can be abbreviated as `LL' +to denote the language's main dialect. For example, `de' is equivalent +to `de_DE' (German as spoken in Germany), and `pt' to `pt_PT' +(Portuguese as spoken in Portugal) in this context. + +Translating Teams +================= + + For the Free Translation Project to be a success, we need interested +people who like their own language and write it well, and who are also +able to synergize with other translators speaking the same language. +Each translation team has its own mailing list. The up-to-date list of +teams can be found at the Free Translation Project's homepage, +`http://www.iro.umontreal.ca/contrib/po/HTML/', in the "National teams" +area. + + If you'd like to volunteer to _work_ at translating messages, you +should become a member of the translating team for your own language. +The subscribing address is _not_ the same as the list itself, it has +`-request' appended. For example, speakers of Swedish can send a +message to `sv-request@li.org', having this message body: + + subscribe + + Keep in mind that team members are expected to participate +_actively_ in translations, or at solving translational difficulties, +rather than merely lurking around. If your team does not exist yet and +you want to start one, or if you are unsure about what to do or how to +get started, please write to `translation@iro.umontreal.ca' to reach the +coordinator for all translator teams. + + The English team is special. It works at improving and uniformizing +the terminology in use. Proven linguistic skill are praised more than +programming skill, here. + +Available Packages +================== + + Languages are not equally supported in all packages. The following +matrix shows the current state of internationalization, as of May 2003. +The matrix shows, in regard of each package, for which languages PO +files have been submitted to translation coordination, with a +translation percentage of at least 50%. + + Ready PO files am az be bg ca cs da de el en en_GB eo es + +-------------------------------------------+ + a2ps | [] [] [] [] | + aegis | () | + anubis | | + ap-utils | | + bash | [] [] [] | + batchelor | | + bfd | [] [] | + binutils | [] [] | + bison | [] [] [] | + bluez-pin | [] [] | + clisp | | + clisp | [] [] [] | + coreutils | [] [] [] [] | + cpio | [] [] [] | + darkstat | () [] | + diffutils | [] [] [] [] [] [] [] | + e2fsprogs | [] [] | + enscript | [] [] [] [] | + error | [] [] [] [] [] | + fetchmail | [] () [] [] [] [] | + fileutils | [] [] [] | + findutils | [] [] [] [] [] [] | + flex | [] [] [] [] | + gas | [] | + gawk | [] [] [] [] | + gcal | [] | + gcc | [] [] | + gettext | [] [] [] [] [] | + gettext-runtime | [] [] [] [] [] | + gettext-tools | [] [] | + gimp-print | [] [] [] [] [] | + gliv | | + glunarclock | [] [] [] | + gnucash | () [] | + gnucash-glossary | [] () [] | + gnupg | [] () [] [] [] [] | + gpe-calendar | [] | + gpe-conf | [] | + gpe-contacts | [] | + gpe-edit | | + gpe-login | [] | + gpe-ownerinfo | [] | + gpe-sketchbook | [] | + gpe-timesheet | | + gpe-today | [] | + gpe-todo | [] | + gphoto2 | [] [] [] [] | + gprof | [] [] | + gpsdrive | () () () | + grep | [] [] [] [] [] | + gretl | [] | + hello | [] [] [] [] [] [] | + id-utils | [] [] | + indent | [] [] [] [] | + jpilot | [] [] [] [] | + jwhois | [] | + kbd | [] [] [] [] [] | + ld | [] [] | + libc | [] [] [] [] [] [] | + libgpewidget | [] | + libiconv | [] [] [] [] [] | + lifelines | [] () | + lilypond | [] | + lingoteach | | + lingoteach_lessons | () () | + lynx | [] [] [] [] | + m4 | [] [] [] [] | + mailutils | [] [] | + make | [] [] [] | + man-db | [] () [] [] () | + mysecretdiary | [] [] [] | + nano | [] () [] [] [] | + nano_1_0 | [] () [] [] [] | + opcodes | [] [] | + parted | [] [] [] [] [] | + ptx | [] [] [] [] [] | + python | | + radius | | + recode | [] [] [] [] [] [] | + screem | | + sed | [] [] [] [] [] | + sh-utils | [] [] [] | + sharutils | [] [] [] [] [] [] | + sketch | [] () [] | + soundtracker | [] [] [] | + sp | [] | + tar | [] [] [] [] | + texinfo | [] [] [] [] | + textutils | [] [] [] [] | + tin | () () | + util-linux | [] [] [] [] [] | + vorbis-tools | [] [] [] | + wastesedge | () | + wdiff | [] [] [] [] | + wget | [] [] [] [] [] [] [] | + xchat | [] [] [] | + xpad | | + +-------------------------------------------+ + am az be bg ca cs da de el en en_GB eo es + 0 1 4 2 31 17 54 60 14 1 4 12 56 + + et fa fi fr ga gl he hr hu id it ja ko + +----------------------------------------+ + a2ps | [] [] [] () () | + aegis | | + anubis | [] | + ap-utils | [] | + bash | [] [] | + batchelor | [] | + bfd | [] [] | + binutils | [] [] | + bison | [] [] [] [] | + bluez-pin | [] [] [] [] | + clisp | | + clisp | [] | + coreutils | [] [] [] [] | + cpio | [] [] [] [] | + darkstat | () [] [] [] | + diffutils | [] [] [] [] [] [] [] | + e2fsprogs | | + enscript | [] [] | + error | [] [] [] [] | + fetchmail | [] | + fileutils | [] [] [] [] [] | + findutils | [] [] [] [] [] [] [] [] [] [] [] | + flex | [] [] | + gas | [] | + gawk | [] [] | + gcal | [] | + gcc | [] | + gettext | [] [] [] | + gettext-runtime | [] [] [] [] | + gettext-tools | [] | + gimp-print | [] [] | + gliv | () | + glunarclock | [] [] [] [] | + gnucash | [] | + gnucash-glossary | [] | + gnupg | [] [] [] [] [] [] [] | + gpe-calendar | [] | + gpe-conf | | + gpe-contacts | [] | + gpe-edit | [] [] | + gpe-login | [] | + gpe-ownerinfo | [] [] [] | + gpe-sketchbook | [] | + gpe-timesheet | [] [] [] | + gpe-today | [] [] | + gpe-todo | [] [] | + gphoto2 | [] [] [] | + gprof | [] [] | + gpsdrive | () [] () () | + grep | [] [] [] [] [] [] [] [] [] [] [] | + gretl | [] | + hello | [] [] [] [] [] [] [] [] [] [] [] [] [] | + id-utils | [] [] [] | + indent | [] [] [] [] [] [] [] [] | + jpilot | [] () | + jwhois | [] [] [] [] | + kbd | [] | + ld | [] | + libc | [] [] [] [] [] [] | + libgpewidget | [] [] [] | + libiconv | [] [] [] [] [] [] [] [] | + lifelines | () | + lilypond | [] | + lingoteach | [] [] | + lingoteach_lessons | | + lynx | [] [] [] [] | + m4 | [] [] [] [] | + mailutils | | + make | [] [] [] [] [] [] | + man-db | [] () () | + mysecretdiary | [] [] | + nano | [] [] [] [] | + nano_1_0 | [] [] [] [] | + opcodes | [] [] | + parted | [] [] [] | + ptx | [] [] [] [] [] [] [] | + python | | + radius | | + recode | [] [] [] [] [] [] | + screem | | + sed | [] [] [] [] [] [] [] [] | + sh-utils | [] [] [] [] [] [] | + sharutils | [] [] [] [] [] | + sketch | [] | + soundtracker | [] [] [] | + sp | [] () | + tar | [] [] [] [] [] [] [] [] [] | + texinfo | [] [] [] [] | + textutils | [] [] [] [] [] | + tin | [] () | + util-linux | [] [] [] [] () [] | + vorbis-tools | [] | + wastesedge | () | + wdiff | [] [] [] [] [] | + wget | [] [] [] [] [] [] [] [] | + xchat | [] [] [] | + xpad | | + +----------------------------------------+ + et fa fi fr ga gl he hr hu id it ja ko + 20 1 15 73 14 24 8 10 30 31 19 31 9 + + lg lt lv ms nb nl nn no pl pt pt_BR ro + +----------------------------------------+ + a2ps | [] [] () () () [] [] | + aegis | () | + anubis | [] [] | + ap-utils | () | + bash | [] | + batchelor | | + bfd | | + binutils | | + bison | [] [] [] [] | + bluez-pin | [] | + clisp | | + clisp | [] | + coreutils | [] | + cpio | [] [] [] | + darkstat | [] [] [] [] | + diffutils | [] [] [] | + e2fsprogs | | + enscript | [] [] | + error | [] [] | + fetchmail | () () | + fileutils | [] | + findutils | [] [] [] [] | + flex | [] | + gas | | + gawk | [] | + gcal | | + gcc | | + gettext | [] | + gettext-runtime | [] | + gettext-tools | | + gimp-print | [] | + gliv | [] | + glunarclock | [] | + gnucash | | + gnucash-glossary | [] [] | + gnupg | | + gpe-calendar | [] [] | + gpe-conf | [] [] | + gpe-contacts | [] | + gpe-edit | [] [] | + gpe-login | [] [] | + gpe-ownerinfo | [] [] | + gpe-sketchbook | [] [] | + gpe-timesheet | [] [] | + gpe-today | [] [] | + gpe-todo | [] [] | + gphoto2 | | + gprof | [] | + gpsdrive | () () () | + grep | [] [] [] [] | + gretl | | + hello | [] [] [] [] [] [] [] [] [] | + id-utils | [] [] [] | + indent | [] [] [] | + jpilot | () () | + jwhois | [] [] [] | + kbd | | + ld | | + libc | [] [] [] [] | + libgpewidget | [] [] | + libiconv | [] [] | + lifelines | | + lilypond | [] | + lingoteach | | + lingoteach_lessons | | + lynx | [] [] | + m4 | [] [] [] [] | + mailutils | | + make | [] [] | + man-db | [] | + mysecretdiary | [] | + nano | [] [] [] [] | + nano_1_0 | [] [] [] [] | + opcodes | [] [] [] | + parted | [] [] [] | + ptx | [] [] [] [] [] [] [] | + python | | + radius | | + recode | [] [] [] | + screem | | + sed | [] [] | + sh-utils | [] | + sharutils | [] | + sketch | [] | + soundtracker | | + sp | | + tar | [] [] [] [] [] [] | + texinfo | [] | + textutils | [] | + tin | | + util-linux | [] [] | + vorbis-tools | [] [] | + wastesedge | | + wdiff | [] [] [] [] | + wget | [] [] [] | + xchat | [] [] | + xpad | [] | + +----------------------------------------+ + lg lt lv ms nb nl nn no pl pt pt_BR ro + 0 0 2 11 7 26 3 4 18 15 34 34 + + ru sk sl sr sv ta tr uk vi wa zh_CN zh_TW + +-------------------------------------------+ + a2ps | [] [] [] [] [] | 16 + aegis | () | 0 + anubis | [] [] | 5 + ap-utils | () | 1 + bash | [] | 7 + batchelor | | 1 + bfd | [] [] [] | 7 + binutils | [] [] [] | 7 + bison | [] [] | 13 + bluez-pin | | 7 + clisp | | 0 + clisp | | 5 + coreutils | [] [] [] [] [] | 14 + cpio | [] [] [] | 13 + darkstat | [] () () | 9 + diffutils | [] [] [] [] | 21 + e2fsprogs | [] | 3 + enscript | [] [] [] | 11 + error | [] [] [] | 14 + fetchmail | [] | 7 + fileutils | [] [] [] [] [] [] | 15 + findutils | [] [] [] [] [] [] | 27 + flex | [] [] [] | 10 + gas | [] | 3 + gawk | [] [] | 9 + gcal | [] [] | 4 + gcc | [] | 4 + gettext | [] [] [] [] [] [] | 15 + gettext-runtime | [] [] [] [] [] [] | 16 + gettext-tools | [] [] | 5 + gimp-print | [] [] | 10 + gliv | | 1 + glunarclock | [] [] [] | 11 + gnucash | [] [] | 4 + gnucash-glossary | [] [] [] | 8 + gnupg | [] [] [] [] | 16 + gpe-calendar | [] | 5 + gpe-conf | | 3 + gpe-contacts | [] | 4 + gpe-edit | [] | 5 + gpe-login | [] | 5 + gpe-ownerinfo | [] | 7 + gpe-sketchbook | [] | 5 + gpe-timesheet | [] | 6 + gpe-today | [] | 6 + gpe-todo | [] | 6 + gphoto2 | [] [] | 9 + gprof | [] [] | 7 + gpsdrive | [] [] | 3 + grep | [] [] [] [] | 24 + gretl | | 2 + hello | [] [] [] [] [] | 33 + id-utils | [] [] [] | 11 + indent | [] [] [] [] | 19 + jpilot | [] [] [] [] [] | 10 + jwhois | () () [] [] | 10 + kbd | [] [] | 8 + ld | [] [] | 5 + libc | [] [] [] [] | 20 + libgpewidget | | 6 + libiconv | [] [] [] [] [] [] | 21 + lifelines | [] | 2 + lilypond | [] | 4 + lingoteach | | 2 + lingoteach_lessons | () | 0 + lynx | [] [] [] [] | 14 + m4 | [] [] [] | 15 + mailutils | | 2 + make | [] [] [] [] | 15 + man-db | [] | 6 + mysecretdiary | [] [] | 8 + nano | [] [] [] | 15 + nano_1_0 | [] [] [] | 15 + opcodes | [] [] | 9 + parted | [] [] | 13 + ptx | [] [] [] | 22 + python | | 0 + radius | | 0 + recode | [] [] [] [] | 19 + screem | [] | 1 + sed | [] [] [] [] [] | 20 + sh-utils | [] [] [] | 13 + sharutils | [] [] [] [] | 16 + sketch | [] | 5 + soundtracker | [] | 7 + sp | [] | 3 + tar | [] [] [] [] [] | 24 + texinfo | [] [] [] [] | 13 + textutils | [] [] [] [] [] | 15 + tin | | 1 + util-linux | [] [] | 14 + vorbis-tools | [] | 7 + wastesedge | | 0 + wdiff | [] [] [] [] | 17 + wget | [] [] [] [] [] [] [] | 25 + xchat | [] [] [] | 11 + xpad | | 1 + +-------------------------------------------+ + 50 teams ru sk sl sr sv ta tr uk vi wa zh_CN zh_TW + 97 domains 32 19 16 0 56 0 48 10 1 1 12 23 913 + + Some counters in the preceding matrix are higher than the number of +visible blocks let us expect. This is because a few extra PO files are +used for implementing regional variants of languages, or language +dialects. + + For a PO file in the matrix above to be effective, the package to +which it applies should also have been internationalized and +distributed as such by its maintainer. There might be an observable +lag between the mere existence a PO file and its wide availability in a +distribution. + + If May 2003 seems to be old, you may fetch a more recent copy of +this `ABOUT-NLS' file on most GNU archive sites. The most up-to-date +matrix with full percentage details can be found at +`http://www.iro.umontreal.ca/contrib/po/HTML/matrix.html'. + +Using `gettext' in new packages +=============================== + + If you are writing a freely available program and want to +internationalize it you are welcome to use GNU `gettext' in your +package. Of course you have to respect the GNU Library General Public +License which covers the use of the GNU `gettext' library. This means +in particular that even non-free programs can use `libintl' as a shared +library, whereas only free software can use `libintl' as a static +library or use modified versions of `libintl'. + + Once the sources are changed appropriately and the setup can handle +the use of `gettext' the only thing missing are the translations. The +Free Translation Project is also available for packages which are not +developed inside the GNU project. Therefore the information given above +applies also for every other Free Software Project. Contact +`translation@iro.umontreal.ca' to make the `.pot' files available to +the translation teams. + diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..29b776f --- /dev/null +++ b/AUTHORS @@ -0,0 +1,2 @@ +For Now: +Ulrich Drepper. diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..ed8461a --- /dev/null +++ b/COPYING @@ -0,0 +1,162 @@ + The Open Software License + v. 1.0 + +This Open Software License (the "License") applies to any original +work of authorship (the "Original Work") whose owner (the "Licensor") +has placed the following notice immediately following the copyright +notice for the Original Work: "Licensed under the Open Software +License version 1.0" + +License Terms + +1) Grant of Copyright License. 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You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. 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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) 19yy + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19yy name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/CREATE-MINI b/CREATE-MINI new file mode 100644 index 0000000..281d4f4 --- /dev/null +++ b/CREATE-MINI @@ -0,0 +1,47 @@ +make dist + +tar jxf elfutils-*.tar.bz2 + +cd elfutils-* + +cp -a $srcdir/fake-src . + +Change SUBDIRS in Makefile.am to only $(mini_SUBDIRS) plus fake-src + Remove COPYING.GPL from EXTRA_DIST + +Remove all AC_CONFIG_FILES lines in configure.ac accept +AC_CONFIG_FILES([config/Makefile]) +AC_CONFIG_FILES([Makefile]) +AC_CONFIG_FILES([m4/Makefile]) +AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in]) +AC_CONFIG_FILES([lib/Makefile]) +AC_CONFIG_FILES([libelf/Makefile libelf-po/Makefile.in]) + +Add +AC_CONFIG_FILES([fake-src/Makefile]) + +Change lib/Makefile.am: + libeu_a_SOURCES only next_prime.c crc32.c + noinst_HEADERS only fixedsizehash.h system.h + remove EXTRA_DIST + remove xmalloc_no_Werror + +mv COPYING.GPL COPYING + +set gpl and fake at beginning of elfutils.spec.in to 1 + +automake + +autoconf + +mkdir build + +cd build + +../configure + +make + +make dist + +rpmbuild -ta elfutils-*.tar.gz diff --git a/ChangeLog b/ChangeLog new file mode 100644 index 0000000..2561ca2 --- /dev/null +++ b/ChangeLog @@ -0,0 +1,112 @@ +2005-07-21 Roland McGrath + + * configure.ac: Take --enable-libebl-subdir=DIR to set LIBEBL_SUBDIR. + +2005-06-01 Roland McGrath + + * Makefile.am (all_SUBDIRS): Add libdwfl. + * configure.ac: Write libdwfl/Makefile. + +2005-05-19 Roland McGrath + + * configure.ac [AH_BOTTOM] (INTDECL, _INTDECL): New macros. + +2005-05-10 Ulrich Drepper + + * configure.ac: Define MODVERSION in config.h. + +2005-02-22 Ulrich Drepper + + * Makefile.am (all_SUBDIRS): Don't add doc subdir for now. + * configure.ac: Don't use doc subdir for now. + +2005-02-15 Ulrich Drepper + + * configure.ac: Remove AM_GNU_GETTEXT use. Use only AM_PO_SUBDIRS. + +2005-02-06 Ulrich Drepper + + * configure.ac (AM_INIT_AUTOMAKE): Removed dist-bzip2. + + * Makefile.am (EXTRA_DIST): Remove splint.rc. + * splint.rc: Removed. + +2004-09-25 Ulrich Drepper + + * configure.ac: Make compile with gcc 4.0. + +2004-03-06 Ulrich Drepper + + * configure.ac: Use AS_HELP_STRING where applicable. + +2004-01-23 Ulrich Drepper + + * configure.ac: Check for C99 compiler. + + * configure.ac: Change locking macros in config.h to at least + evaluate the parameter. Define base_cpu to none for generic linker. + +2004-01-21 Ulrich Drepper + + * configure.ac: Print error message in case --disable-generic is + used if no linker support for the architecture is available. + +2004-01-18 Ulrich Drepper + + * configure.ac: Dont generate libebl-po/Makefile.in, + libdw-po/Makefile.in, libasm-po/Makefile.in. + + * Makefile.am (all_SUBDIRS): Remove libebl-po, libdw-po, libasm-po. + +2004-01-17 Ulrich Drepper + + * configure.ac: Pretty printing of help message. + + * configure.ac: Move AC_SYS_LARGEFILE test to the front. + + * configure.ac: Add --enable-mudflap option. + +2004-01-17 Ulrich Drepper + + * configure.ac: Major cleanups. Use aux dir. + * config.guess: Moved to new config subdir. + * config.rpath: Likewise. + * config.sub: Likewise. + * depcomp: Likewise. + * install-sh: Likewise. + * missing: Likewise. + * mkinstalldirs: Likewise. + * Makefile.am (mini_SUBDIRS): Add config. + (EXTRA_DIST): Remove config.rpath. + + * configure.ac: Add AC_REVISION. + + * configure.ac: Add --enable-mudflap option. + +2004-01-11 Ulrich Drepper + + * configure.ac: Drop libdwarf directory. Add libdw-po. + * Makefile.am (all_SUBDIRS): Likewise. + * elfutils.spec: Don't distribute anything from libdwarf. + +2004-01-05 Ulrich Drepper + + * Makefile.am: Support separate libelf built. + + * elfutils.spec.in: Create separata elfutils-libelf-devel package. + Install libdw DSOs. + + * configure.ac (AC_CONFIG_SRCDIR): Use libelf/libelf.h as the file + name. + +2003-08-13 Ulrich Drepper + + * elfutils.spec.in: Remove references to libebl.so. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. + +2000-08-25 Ulrich Drepper + + * The beginning. See the NEWS file for the time being. diff --git a/GPG-KEY b/GPG-KEY new file mode 100644 index 0000000..cd60f82 --- /dev/null +++ b/GPG-KEY @@ -0,0 +1,33 @@ +Public key for drepper@redhat.com +-----BEGIN PGP PUBLIC KEY BLOCK----- +Version: GnuPG v1.2.1 (GNU/Linux) + +mQGiBDuFth0RBACPcHEkyqJE26wTXuuuCxpqJjxlBnNFkJGkWUoeu89QjzWgzXy/ +EA8+ptNBgCTPKnLEqhkRUyxAT/Uz+t+xbKqUtL54IzYfxO4NQsN/VVM0uppNfIJb +MWvAjvpp2HCkd/32i693rlH+G9dvG8K57by3PBRHBgH2L8Q7t/QvA2AWpwCgzokX +DDUiitysGn4rWO0rBBoR6OED/3ehpcHtbGixNoubRZAxpw99VTKs/I76OkrQzqcm ++w+zwZeihJXC88yAHA77/LBB3YKaX3G4CmDQUbeRJ9zPlETTLmRMcF61dQdq/3qV +Biq1sm6ctZ4uEpm8HnysKMT+VY4Xmj9LLzF2BdING9frcX9rk8Vk25iCLBronS0M +IU3WA/sEvlUFlfbyCBRBoq+Rlr9u05fnHc7CLMKI7EIS1T1dLPxH1ivuUhyYNGAM +RhCivBbT2Z0t/R4ksu3VdnPGkCyAAdWNSafSGqCYUzQH0u5Z8HK6c2iXrIX3Ipk5 +DhQOQ6k1tyYzuQw3cCf7RYRJ9/iup8RlscVt2kmGnSucqpxJCbQjVWxyaWNoIERy +ZXBwZXIgPGRyZXBwZXJAcmVkaGF0LmNvbT6IVwQTEQIAFwUCO4W2HQULBwoDBAMV +AwIDFgIBAheAAAoJENoowjp5/0R0SqUAoL5HBbaRWR19vjldUeJvYCG2AR94AKDL +nmVEaykaZWyyNg0OTuxLe1boa4hGBBARAgAGBQI8iQDvAAoJEFWW3Qzpv2U97wgA +n1RVl6FbIHVVmT224nOp5b98OZVnAJ9ehXzM60RbmGi3kJNS30II+SGft4hGBBMR +AgAGBQI9Tvt0AAoJEP3S3qzTM8uhUy0AoNqATBj2usEtJduGHukKZ9mQaycFAJ9y +lq0MmZJwMZ3699e6rgMiHAMAVbkCDQQ7hbZPEAgAzuFAPq1sYUtpJClwX7+pdz1K +dIgbxDKoSHh2rSRx24HLYY/xg9ps6fZF21/SBialKaB8BFnIeh8S9LXUtWt9aUeC +klnnQwPbR0BGRcZAS7+nHZ9agiMd4CRe4RWFmS6KhIeUsDa70+8XhIm/C+Ogd7ag +kBw7ykTb/jWHMyvcP9iY0QtmIatfVTDJUm7Rm5TtM1mDCml/gWIQJ5ezr9gv2NUG +3kpNYwP+G9o4BLyTOHamix/0YHI/HiZSYiwq40ao0zROd/yXY6/a3mitN96AidJL +5I5tbqnrFy6LmRvWmyOxWkJD/bF31rrO5PfVUgcVpUxbtW44PtVilhLuh+qjTwAD +BQf+NTHwjUw1j+PZs/y5XnPw0x0ZdYGEl0I7NqtMgCxI4ZHT9jaLcLXARb3UVEuc +1LuJ1tAA1ss1c1NLK3Lg+uZzeKMRffRYEUg0Emer8QGWr1uSOxDHcAzuRZX3PYNX +cEGEyEm443DDnXr/4b8zYK6O+sy1Ld+SVxxp6jwtk0LyT7okgD0E1dDUzX+qxpsV +ujbzdH4bdqocKouMNMT+BHeobNZpR4Tyz5+pwW+rw1+XZebyBUkIPXOoWPZpUTDG +fZ+om9xfg0JOcKZIZ0X91dLQp5x99aCmzwWeWy9LFPTAf9pYky8wXzteEotE/Tkm +DeA1caPC9IEK9BBrrS9TeubrEIhGBBgRAgAGBQI7hbZPAAoJENoowjp5/0R0Z38A +mgM4FAquwltH0ooTdAmBMoCfKb4/AJ9ufAh4Rl9sFaCie/j8jdo02bcV1A== +=Yeua +-----END PGP PUBLIC KEY BLOCK----- diff --git a/INSTALL b/INSTALL new file mode 100644 index 0000000..b42a17a --- /dev/null +++ b/INSTALL @@ -0,0 +1,182 @@ +Basic Installation +================== + + These are generic installation instructions. + + The `configure' shell script attempts to guess correct values for +various system-dependent variables used during compilation. It uses +those values to create a `Makefile' in each directory of the package. +It may also create one or more `.h' files containing system-dependent +definitions. Finally, it creates a shell script `config.status' that +you can run in the future to recreate the current configuration, a file +`config.cache' that saves the results of its tests to speed up +reconfiguring, and a file `config.log' containing compiler output +(useful mainly for debugging `configure'). + + If you need to do unusual things to compile the package, please try +to figure out how `configure' could check whether to do them, and mail +diffs or instructions to the address given in the `README' so they can +be considered for the next release. If at some point `config.cache' +contains results you don't want to keep, you may remove or edit it. + + The file `configure.in' is used to create `configure' by a program +called `autoconf'. You only need `configure.in' if you want to change +it or regenerate `configure' using a newer version of `autoconf'. + +The simplest way to compile this package is: + + 1. `cd' to the directory containing the package's source code and type + `./configure' to configure the package for your system. If you're + using `csh' on an old version of System V, you might need to type + `sh ./configure' instead to prevent `csh' from trying to execute + `configure' itself. + + Running `configure' takes awhile. While running, it prints some + messages telling which features it is checking for. + + 2. Type `make' to compile the package. + + 3. Optionally, type `make check' to run any self-tests that come with + the package. + + 4. Type `make install' to install the programs and any data files and + documentation. + + 5. You can remove the program binaries and object files from the + source code directory by typing `make clean'. To also remove the + files that `configure' created (so you can compile the package for + a different kind of computer), type `make distclean'. There is + also a `make maintainer-clean' target, but that is intended mainly + for the package's developers. If you use it, you may have to get + all sorts of other programs in order to regenerate files that came + with the distribution. + +Compilers and Options +===================== + + Some systems require unusual options for compilation or linking that +the `configure' script does not know about. You can give `configure' +initial values for variables by setting them in the environment. Using +a Bourne-compatible shell, you can do that on the command line like +this: + CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure + +Or on systems that have the `env' program, you can do it like this: + env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure + +Compiling For Multiple Architectures +==================================== + + You can compile the package for more than one kind of computer at the +same time, by placing the object files for each architecture in their +own directory. To do this, you must use a version of `make' that +supports the `VPATH' variable, such as GNU `make'. `cd' to the +directory where you want the object files and executables to go and run +the `configure' script. `configure' automatically checks for the +source code in the directory that `configure' is in and in `..'. + + If you have to use a `make' that does not supports the `VPATH' +variable, you have to compile the package for one architecture at a time +in the source code directory. After you have installed the package for +one architecture, use `make distclean' before reconfiguring for another +architecture. + +Installation Names +================== + + By default, `make install' will install the package's files in +`/usr/local/bin', `/usr/local/man', etc. You can specify an +installation prefix other than `/usr/local' by giving `configure' the +option `--prefix=PATH'. + + You can specify separate installation prefixes for +architecture-specific files and architecture-independent files. If you +give `configure' the option `--exec-prefix=PATH', the package will use +PATH as the prefix for installing programs and libraries. +Documentation and other data files will still use the regular prefix. + + In addition, if you use an unusual directory layout you can give +options like `--bindir=PATH' to specify different values for particular +kinds of files. Run `configure --help' for a list of the directories +you can set and what kinds of files go in them. + + If the package supports it, you can cause programs to be installed +with an extra prefix or suffix on their names by giving `configure' the +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. + +Optional Features +================= + + Some packages pay attention to `--enable-FEATURE' options to +`configure', where FEATURE indicates an optional part of the package. +They may also pay attention to `--with-PACKAGE' options, where PACKAGE +is something like `gnu-as' or `x' (for the X Window System). The +`README' should mention any `--enable-' and `--with-' options that the +package recognizes. + + For packages that use the X Window System, `configure' can usually +find the X include and library files automatically, but if it doesn't, +you can use the `configure' options `--x-includes=DIR' and +`--x-libraries=DIR' to specify their locations. + +Specifying the System Type +========================== + + There may be some features `configure' can not figure out +automatically, but needs to determine by the type of host the package +will run on. Usually `configure' can figure that out, but if it prints +a message saying it can not guess the host type, give it the +`--host=TYPE' option. TYPE can either be a short name for the system +type, such as `sun4', or a canonical name with three fields: + CPU-COMPANY-SYSTEM + +See the file `config.sub' for the possible values of each field. If +`config.sub' isn't included in this package, then this package doesn't +need to know the host type. + + If you are building compiler tools for cross-compiling, you can also +use the `--target=TYPE' option to select the type of system they will +produce code for and the `--build=TYPE' option to select the type of +system on which you are compiling the package. + +Sharing Defaults +================ + + If you want to set default values for `configure' scripts to share, +you can create a site shell script called `config.site' that gives +default values for variables like `CC', `cache_file', and `prefix'. +`configure' looks for `PREFIX/share/config.site' if it exists, then +`PREFIX/etc/config.site' if it exists. Or, you can set the +`CONFIG_SITE' environment variable to the location of the site script. +A warning: not all `configure' scripts look for a site script. + +Operation Controls +================== + + `configure' recognizes the following options to control how it +operates. + +`--cache-file=FILE' + Use and save the results of the tests in FILE instead of + `./config.cache'. Set FILE to `/dev/null' to disable caching, for + debugging `configure'. + +`--help' + Print a summary of the options to `configure', and exit. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to `/dev/null' (any error + messages will still be shown). + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`--version' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`configure' also accepts some other, not widely useful, options. diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..7d27a7c --- /dev/null +++ b/Makefile.am @@ -0,0 +1,36 @@ +## Process this file with automake to create Makefile.in +## Configure input file for elfutils. +## +## Copyright (C) 1996-2002, 2003, 2004, 2005 Red Hat, Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, version 2. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software Foundation, +## Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +## +ACLOCAL_AMFLAGS = -I m4 + +mini_SUBDIRS = config m4 lib libelf libelf-po +# Add doc back when we have some real content. +all_SUBDIRS = libebl libdw libdwfl libcpu libasm src po tests +SUBDIRS = $(mini_SUBDIRS) $(all_SUBDIRS) + +EXTRA_DIST = elfutils.spec GPG-KEY NOTES COPYING.GPL + +distcheck-hook: + chmod -R u+w $(distdir) + +rpm: dist + rpmbuild -ts --sign elfutils-@PACKAGE_VERSION@.tar.gz + +# Tell version 3.79 and up of GNU make to not build goals in this +# directory in parallel. +.NOTPARALLEL: diff --git a/NEWS b/NEWS new file mode 100644 index 0000000..c3ddfbb --- /dev/null +++ b/NEWS @@ -0,0 +1,786 @@ +Version 0.110: + +libelf: fix a numbe rof problems with elf_update + +elfcmp: fix a few bugs. Compare gaps. + +Fix a few PLT problems and mudflap build issues. + +libebl: Don't expose Ebl structure definition in libebl.h. It's now private. + +Version 0.109: + +libebl: Check for matching modules. + +elflint: Check that copy relocations only happen for OBJECT or NOTYPE symbols. + +elfcmp: New program. + +libdwfl: New library. + +Version 0.108: + +strip: fix bug introduced in last change + +libdw: records returned by dwarf_getsrclines are now sorted by address + +Version 0.107: + +readelf: improve DWARF output format + +strip: support Linux kernel modules + +Version 0.106: + +libdw: Updated dwarf.h from DWARF3 spec +libdw: add new funtions dwarf_func_entrypc, dwarf_func_file, dwarf_func_line, +dwarf_func_col, dwarf_getsrc_file + +Version 0.105: + +addr2line: New program + +libdw: add new functions: dwarf_addrdie, dwarf_macro_*, dwarf_getfuncs, +dwarf_func_*. + +findtextrel: use dwarf_addrdie + +Version 0.104: + +findtextrel: New program. + +Version 0.103: + +libdw: Fix using libdw.h with gcc < 4 and C++ code. Compiler bug. + +Version 0.102: + +More Makefile and spec file cleanups. + +Version 0.101: + +Remove most gettext autoconf handling. + +Add more warnings + +Fix resulting problems. One actual bug found and fixed this way + +Version 0.100: + +libebl: Fix x86-64 relocations. + +Add -Wunused -Wextra warnings. + +Some cleanups resulting from those additional warnings. + +Lots of Makefile cleanup. + +Version 0.99: + +libelf: add gelf_checksum prototype to + +libelf: fix elf*_checksum handling of NOBITS sections + +Finish mudflap support. + +Fix three bugs found by mudflap. + +ld: add as_needed support + +Version 0.98: + +readelf: in section to segment mapping, indicate read-only sections. + +elflint: more relaxation for GNU ld + +Version 0.97: + +Fix compiling with gcc 4.0. +Some tests called elflint without appropriate LD_LIBRARY_PATH. + +Version 0.96: + +Fix support for platforms with lib64. + +Version 0.95: + +libebl: add ppc and ppc64 support + +readelf: fix minimal memory leak. + +Add support to compile with mudflap. + +Modernize configure.ac. Move scripts in config subdir. + +Modernize *-po directory infrastructure. + +libelf: Add gelf_getlib and gelf_update_lib + +readelf: print liblist sections + +Version 0.94: + +Fix some minimal build problems. + +Version 0.93: + +ibdw: tons of new functionality and bug fixes. Several interface changes. + +readelf: use libdw now. + +libdwarf: removed completely. + +Version 0.92: + +configuration changes. + +Version 0.91: + +libdw: fix memory handling. Implement source line handling. +nm: use libdw instead of libdwarf. +libelf: change to GPL from OSL1 for now. + +Version 0.90: + +libebl: Recognize a few more section types and dynamic tags and return +approriate strings. + +Version 0.89: + +strip: fix overwriting of symbol table in input file. + +Version 0.88: + +libebl: Add some ia64 bits. + +Version 0.87: + +Bug fixes for big endian and some 64-bit machines. + +Version 0.86: + +strip: fix handling of Alpha and s390x which use incorrect hash bucket sizes. + +ld: tons of changes, moving towards usability. + +Version 0.85: + +strip: update section group symbol index if the associated symbol table changed + +libelf: fix two problems with generating output not via mmap + +elflint: add probably 10-15 more tests +libebl: add support for some of the new tests + +ld: gazillion changes + +Version 0.84: + +elflint: deal with .rel.dyn section. Fix a problem with rela platforms. +Handle PT_GNU_STACK. Change to write messages to stdout. + +readelf: fix a problem with version information in the symbol table output. + +strip: update all version symbol table entries + +Version 0.83: + +size: fix a warning + +strip: last changed caused problems when the symbol table is before the +relocation section. Fixed. This fix also improved the asymptotic +behavior if many symbol table sections are present. + +Version 0.82: + +Run strip tests with the correct libelf and libebl. + +libelf: fix bug in verneed byte order changing code. + +Version 0.81: + +strip: Remove unused symbol table entries. This might require updating +various other sections. + +Version 0.80: + +Fix some libelf problems with ET_REL files. + +Version 0.79: + +More warning changes, mainly by jbj. + +libdw: yet more new code. dwarf_child and dwarf_sibling should now actually +work. + +Version 0.78: + +libdw: 10+ new functions. get-pubnames2 works now fully. Almost all the +code needed for nm is in place. + +Version 0.77: + +cleanups to compile cleanly with gcc 3.3 and -Werror. + +libdw: some new code. + +Version 0.76: + +libebl: Fix last patch to recognize relocation sections. We must not +use the name. + +Version 0.75: + +libebl: .debug_ranges is a DWARF 3 debug section +libebl: recognize relocation sections for debug section +Patches by Jakub Jelinek. + +Version 0.74: + +Cleanups and more SPARC support by Tom Callaway . + +Version 0.73: + +64-bit cleanups for the programs. + +Version 0.72: + +libelf: and yet more fun with endian tranformation at output time. + +Version 0.71: + +libelf: more fun with endian tranformation at output time. Add test for it. + +Version 0.70: + +libelf: Two little bugs left from previous patch to handle section output +order. + +libelf: add unlikely in some more places. + +Version 0.69: + +libelf: fix output routines to handle case where section indeces and +ordre in the output file don't match correctly. Patch by Jakub. + +elflint: fix test of note section content for 64-bit platforms and files +with different byte order. + +Version 0.68: + +libebl: Fix SH_ENTSIZE_HASH definition (patch by Jakub) + +Version 0.67: + +libelf: correct mistake in error string handling. + +libelf: Implement ELF_F_PERMISSIVE. +strip: Implement --permissive option. + +Version 0.66: + +strip: Implement -g option. + +libelf: Handle broken hash table entry sizes. + +libebl: New function ebl_debugscn_p. Use it where appropriate. + +Version 0.65: + +libelf: Use correct file size for NOBITS section with ELF_F_LAYOUT set + +Version 0.64: + +libelf: Make error handling more robust. +libelf: Use TLS in error handler if configured with --enable-tls + +tests: input files are now distributed, not uuencoded in the shell scripts + +libdw: implement error handling, dwarf_get_pubnames + +Version 0.63: + +Build (incomplete) libdw. + +Version 0.62: + +Get rid of libtool. + +Version 0.61: + +Fix URL of OSL. + +Version 0.60: + +libebl: Handle .gnu.warning.* sections correctly. + +size: Implement -t option. + +libebl: Add IA-64 support. +libebl: Update SH relocations. +libebl: Add Alpha support. +libebl: Add Arm support. +libebl: Add support for all currently known architecture to the loader. + +Version 0.59: + +nm: Implement -S option. Correct portable output format. Implement -s option. + +libelf: Take offset of archive into account in elf_rand. + +Version 0.58: + +strip: fix handling of ET_REL files. +Add tests for strip. + +Version 0.57: + +strip: respect layout of input file + +Version 0.56: + +strip: handle files with large number of sections. + +Version 0.55: + +libelf: quite a few bug fixes by Alex Larsson. + +strip: implement -f option to place stripped sections into a separate +file. By Alex Larsson. + +Version 0.54: + +strip: don't let STT_SECTION symbols keeps sections from being removed + +elflint: local symbols are allowed in .dynsym +elflint: special case .rel.dyn a bit + +Version 0.53: + +elflint: check types and flags of special sections defined in gABI + +libebl: add x86-64 support + +Version 0.52: + +Start improvement of debug info handling in nm. + +libasm: implement asm_adduleb128 and asm_addsleb128 and a test for them + +Version 0.51: + +Fix build on 64-bit platforms. + +Version 0.50: + +nm: print file/line number also for local symbols + +use versions scripts not libtool's useless -export-symbols option + +Version 0.49: + +Update to autoconf 2.54 and automake 1.7. + +elflint: check note sections + +libdwarf: a number of bug fixes + +readelf: print .debug_info section content + +dwarf.h: Update from draft 7 + +Version 0.48: + +libcpu: beginning + +libelf: new function to read parts of the ELF file + +libebl: support for note section handling + +readelf: dump note sections + +Version 0.47: + +libelf: fix little new section-handling related bugs in elf_getshstrndx +and elf_nextscn + +elflint: tests for mandatory content of dynamic section + +libasm: better handling of absolute symbols + +Version 0.46: + +libasm: rewrite to store Elf_Scn* instead of indices + +nm: finish many-section support + +nm: use debug in to print file/line info in sysv format + +libdwarf: fix a few bugs in DIE handling + +Version 0.45: + +libelf: major rewrite to keep Elf_Scn references valid until elf_end + +Version 0.44: + +libasm: Add support for bss, ABS, and COM sections. + +libebl: ebl_section_name takes now two index arguments to distinguish +between special sections and extended sections + +Version 0.43: + +General: fix a few problem gcc 3.1 had with the code. + +libelf: implement {gelf,elf32,elf64}_checksum + +libelf: optimze DSO: fewer relocations, fewer PLTs + +add msg_tst test + +ld: use correct section header string table index; write correct index + +add dependencies for *.sym files + +Version 0.42: + +libelf: add elf_getshnum and elf_getshstrndx + +libebl: update section type name function + +elflint: tons of fixes wrt large number of sections. New tests in this area. +Same amount of other bug fixes. + +size, strip, nm: better support for large number of sections. Including +using correct section header string table + +libasm: correctly create data structures for large number of sections + +new tests asm-tst4 and asm-tst5 to check large number of sections + +libasm: implement section group generation + +elflint: more tests on section groups. Improve performance on existing +section group tests + +Version 0.41: + +ld: add undefined symbols to dynamic symbol table if --export-dynamic is +not given + +ld: fix value of e_entry + +Version 0.40: + +elflint: print section names in error messages + +elflint: mustn't warn about multiple DT_NULL + +ld: don't emit all symbols if --export-dynamic is not given + +ld: correct compute symbol address in output file (section index was off by 1) + +ld: generate correct version info in dynsym without --export-dynamic and +in symtab + +Version 0.39: + +Fix check of various e_*size entries in elflint. + +Handle text output in asm_newsym. + +Finish checks in asm-tst3. + +Version 0.38: + +Update to autoconf 2.53, automake 1.6, gettext 0.11+. + +Introduce *.sym files to restrict export from DSOs. + +Use attribute_hidden and internal_function to optimize DSO code. + +Add TLS definitions in elf.h and handle them in readelf. + +Fix bug in verdef section generation in ld. + +Add initial libasm code. + +Version 0.37: + +Implement better hash size optimization heuristic in ld. It uses a formula +taking number of tests into account. + +Lots of small bug fixes. + +Improve readelf output format. Respect various sh_link/sh_info values. +Correctly print versioning information for symbol tables. + +Version 0.36: + +Implement preprocessing of linker script. Recognize -z combreloc. + +Version 0.35: + +Implement -z ignore|record for ld. + +Implement creating of .gnu.version_r and .gnu.version sections. The +.gnu.version does not yet contain correct info for defined and versioned +symbols (means .gnu.version_d is not yet implemented). + +Implement gelf_update_* functions to create versioning data. + +Version 0.34: + +Add DT_RUNPATH/DT_RPATH entries to dynamic section. Create .plt and +.rel.plt sections (completely). Add support for all four PLT related +dynamic section entries. Add callback function for PLT creation. + +More tests in elflint. Add support for very strict checking which for +now flags level 2 (deprecated features) usage. + +Version 0.33: + +Create dynamic symbol table, dynamic string table, and hash table to ld. + +Add hash table histogram support to readelf. + +Version 0.32: + +more work on elflint + +ld now creates the dynamic section and references it. Start adding entries +to dynamic section. + +Version 0.31: + +Start implementing elflint. + +Version 0.30: + +Fix handling of NOBITS sections in elf_getdata. + +Start implementing generation of executables and DSOs in ld. +Generation of program header mostly done. Address computation done. +Extension of linker script syntax. + +Various cleanups. + +Implement section group handling in readelf. + +Version 0.29: + +Implement section groups. This involved a lot of code moving. The +new code is entirely untested since gas/gcc are currently not able to +create section groups. ld works fine on files without section groups. + +Version 0.28: + +Fix problem with adding more section in elf_newscn. The section pointers +for the data buffers wasn't adjusted. + +Fix elf_getdata with nonzero second parameter. Correctly handle creation +of internal data buffer for machines without unaligned access. + +Version 0.27: + +Start adding support to selectively add sections. Includes support for +section groups. +Add --gc-sections/--no-gc-sections options. +Add general section merging support. + +Fix a bug in section group support in strip. + +Fix some potential problems with hash value in dynamic hash implementation. + +Version 0.26: + +section merging works in ld. + +Version 0.25: + +Actually create data structures from version map file and use it to hide +symbols in ld. + +Implement -s -s for ld. + +Version 0.24: + +Improve relocation table output in readelf. Avoid some crashes. +Finish many section handling in readelf. + +Finish: finish implementation of ld -r. At least some simple tests pass. + +Version 0.23: + +Fix a number of errors in ELF_C_WRITE handling. + +Almost finished implementation of ld -r. The data sections are all copied. +Handling of symbol tables is missing. + +Version 0.22: + +Handle DSO and archive input files correctly if -r option is given. + +Gracefully deal with no phdr in new file in libelf. +Fix various small error handling problems. +Don't mmap file for output unless the command says so. + +Add code to create ELF section header table to ld finalize routines. + +Version 0.21: + +Fix some problems with recursive handling of archives in libelf. + +Improve messages printed by nm. + +Add symbol binding name handling to libebl. Fix section name handling in +libebl. + +readelf and nm use more libebl functions. + +Handle XINDEX correctly in nm and string. + +Add first machine ld backend library (i386). +Use it. Recognize -r and --shared. Avoid using -lxxx parameters for -r. +Create ELF header in output file. Change mode of output file according to +output file type. Reorganize callback initialization in ld. + +Version 0.20: + +Fix some memory leaks in libelf. + +Version 0.19: + +Implement reading version script. Both inside linker scripts and via the +--version-script command line parameter. Uses the same code. +What remains to be done is to implement a data structure which allows +efficient matching against the version names to decide which pattern +matches. + +Beginning of output generation and output writing functions. + +Version 0.18: + +Finish implementation for DSO input file handling. Implement rpath, runpath, +and LD_LIBRARY_PATH handling. + +Version 0.17: + +make handling of e_shnum overflow in libelf standard conforming + +ld now actually can handle DSOs in linker scripts. Handling of DT_RUNPATH, +DT_RPATH, -rpath, -rpath-link still remains to be implemented. + +fix handling of -L parameters. Make actual use of the default_paths element. + +make re-definition of symbols in and from DSO compatible with existing linker + +Version 0.16: + +more work on assigning input sections to output sections. + +Add gelf_xlatetof and gelf_xlatetom which were accidently left out. + +Fix memory handling of section headers. + +Version 0.15: + +Add many-section support to ld. Add various new command line parameters. +Allow pagesize to be specified in linker script or on the command line. +Collect input sections in list for the output section according to the rules +specified in the linker script. + +Version 0.14: + +Fix some problems in the internal list handling which had the result +that we didn't look for some of the unresolved symbols. + +Free some memory if we know we don't need it anymore. + +Optimize the list of unresolved symbols. Throw out symbols which are +meanwhile resolved. + +Version 0.13: + +Got file reading correct now. The files are all read while parsing +the parameters. No creating of data structures to describe the linker +command line. The symbol table is built up while reading the files. +DSOs are handled now. -( -) handling is optimized. + +Version 0.12: + +Linker read linker scripts everywhere. Handles --whole-archive. Recognizes +--dynamic and --static. Collects defined and undefined symbols. Recognizes +conflicts. + +libebl now defines functions to call the callbacks. Add generic name handling +in these new functions. Remove the code from readelf and call the new +functions. + +Version 0.11: + +Start of linker. Basic argument parsing, finding of input files, +linker script reading. + +Version 0.10: + +Implement dwarf_get_fde_n(), dwarf_get_abbrev(), dwarf_get_abbrev_tag(), +dwarf_get_abbrev_code(), dwarf_get_abbrev_children_flag(), +dwarf_get_abbrev_entry(), dwarf_get_fde_at_pc(), and tests for it. + +Version 0.9: + +Implement dwarf_get_fde_list_eh(), dwarf_get_cie_of_fde(), +dwarf_get_fde_range(), dwarf_get_cie_info(), dwarf_get_fde_instr_bytes(), +and tests for them. + +Version 0.8: + +Make handling of binaries in other byte order work and add tests for it. + +Version 0.7: + +Implement dwarf_get_aranges(), dwarf_get_arange(), dwarf_get_cu_die_offset(), +dwarf_get_arange_info(), and tests for them. + +Version 0.6: + +Implement dwarf_get_global(), dwarf_globname(), dwarf_global_die_offset(), +dwarf_global_cu_offset(), dwarf_global_name_offsets(), and tests for them + +Version 0.5: + +Implemented dwarf_srclines(), dwarf_srcfiles(), dwarf_linebeginstatement(), +dwarf_lineendsequence(), dwarf_lineno(), dwarf_lineaddr(), dwarf_lineoff(), +dwarf_linesrc(), dwarf_lineblock(), dwarf_lineprologueend(), +dwarf_lineepiloguebegin(), and tests for them. + +Version 0.4: + +Implemented dwarf_loclist(). + +Version 0.3: + +Implemented dwarf_dieoffset(), dwarf_die_CU_offset(), dwarf_diename() and +tests. + +Implemented dwarf_attrlist(), dwarf_hasattr(), dwarf_attr(), dwarf_lowpc(), +dwarf_highpc(), dwarf_bytesize(), dwarf_bitsize(), dwarf_bitoffset(), +dwarf_srclang(), dwarf_arrayorder(), dwarf_hasform(), dwarf_whatform(), +dwarf_whatattr(), dwarf_formref(), dwarf_global_formref(), dwarf_formaddr(), +dwarf_formflag(), dwarf_formudata(), dwarf_formsdata(), dwarf_formblock, +dwarf_formstring() and tests for them. + +Version 0.2: + +Implemented dwarf_offdie()), dwarf_tag(), dwarf_dieoffset(), +dwarf_die_CU_offset(), dwarf_diename() and tests for them. + +Version 0.1: + +First libdwarf functions work. + +Version 0.0: + +libelf and parts of libebl are done. diff --git a/NOTES b/NOTES new file mode 100644 index 0000000..4f06b8d --- /dev/null +++ b/NOTES @@ -0,0 +1,73 @@ +- old GNU ld's behavior wrt DSOs seems to be severely broken. + + y.o reference foo() + y1.o defines foo(), references bar() + y2.o defines bar() + libbar.so defines bar() + + Running + + gcc -o y y.o -lbar y1.o y2.o + + uses the bar() definition from libbar.so and does not mention the definition + in y2.o at all (no duplicate symbol message). Correct is to use the + definition in y2.o. + + + y.o reference foo() + y1.o defines foo(), references bar() + y2.o in liby2.a defines bar() + libbar.so defines bar() + + Running + + gcc -o y y.o -lbar y1.o -ly3 + + has to use the definition in -lbar and not pull the definition from liby3.a. + + +- the old linker follows DT_NEEDED entries and adds the objects referenced + this way which define a symbol which is needed as a DT_NEEDED to the + generated binary. This is wrong since the DT_NEEDED changes the search + path in the object (which is breadth first). + + +- the old linker supported extern "C++", extern "java" in version scripts. + I believe this implementation is severly broken and needs a redesign + (how do wildcards work with these languages*?). Therefore it is left + out for now. + + +- what should happen if two sections in different files with the same + name have different types and/or the flags are different + + +- section names in input files are mostly irrelevant. Exceptions: + + .comment/SHT_PROGBITS in strip, ld + + .debug \ + .line | + .debug_srcinfo | + .debug_sfnames | + .debug_aranges | + .debug_pubnames | + .debug_info | + .debug_abbrev | + .debug_line | + .debug_abbrev > DWARF sections in ld + .debug_line | + .debug_frame | + .debug_str | + .debug_loc | + .debug_macinfo | + .debug_weaknames | + .debug_funcnames | + .debug_typenames | + .debug_varnames / + + Sections created in output files follow the naming of special section + from the gABI. + + In no place is a section solely indentified by its name. Internal + references always use the section index. diff --git a/README b/README new file mode 100644 index 0000000..afc9407 --- /dev/null +++ b/README @@ -0,0 +1,6 @@ +Fundamental design decision: + +- the sizes of external and internal types are assumed to be the same. + This leaves byte ordering aside. While assuming this the code can be + greatly simplified and speed increases. Since no change violating this + assumption is in sight this is believed to be a worthwhile optimization. diff --git a/THANKS b/THANKS new file mode 100644 index 0000000..543436c --- /dev/null +++ b/THANKS @@ -0,0 +1,5 @@ +At least the following have submitted valuable patches: + +Jeff Johnson building. rpm wrestling +Alexander Larsson separate debug info +Jakub Jelinek bug fixes, testing diff --git a/TODO b/TODO new file mode 100644 index 0000000..bf4a033 --- /dev/null +++ b/TODO @@ -0,0 +1,168 @@ + ToDo list for elfutils -*-outline-*- + ---------------------- + +Time-stamp: <2003-08-07 12:52:49 drepper> + +* mkinstalldirs + + Remove everywhere. Use mkdir -p. + +* libelf: + +** verify section + + Currently the elf_update function trusts the user blindly if the + ELF_F_LAYOUT flag is set. This is OK if the data is prepared by a + ELF_C_NULL call but not if the user prepared the data herself + +** break out archive handling from elf_begin + + The handling of archives (especially of the symbol tables) must be + broken out of elf_begin. There are several different forms of + archives and only when having the archive handling separately this + remains maintainable. + + +* libdwarf + +** Should we do more error checking? + + Most functions don't check whether they get a NULL value passed for + a pointer argument. It could be argued that this is OK since it's + a bug inthe program. But perhaps one could catch the case and return + an error which would allow the program using libdwarf to have fewer + places with error checking. + +** More memory access checks needed + + All accesses to the debug sections should make sure the offsets are + valid. This is currently especially a problem with leb128 accesses. + +** Low level macro information operations + + in 5.11.3 are not implemented. gcc currently does not emit this + information so I cannot test it. + +** Rename dwarf_getabbrev + +** dwarf_loclist() + + This function and its interface seem to be misdesigned. The specification + is unclear and its changed between v2 and v2.1. Other implementation + implement even different behavior. + + +* nm: + +** add demangler support + + Use demangler from libiberty. + +** add support to read debugging symbols + + Implement -l option for BSD and POSIX format + + +* strip: + +** support SHT_SYMTAB_SHNDX + + should be removed if not needed anymore + +* ld: + +** sanity check .rel sh_info content + + the sh_info of all .rel sections with the same name must point to + sections which also have the same name + +** use ld.so.conf + + to locate shared libraries also use /etc/ld.so.conf + +** handle object files for different architectures + + ld.so is expected to ignore object files for different architectures and + continue looking for a matching file (e.g., ignore 32-bit binaries on + 64-bit platforms and vice versa). We probably need the same in ld. + +** reuse after elf_end + + Some files are closed using elf_end. They are removed from memory only + if no reference is left (especially for archives this is a problem). + The old mapping should be reused in that case. The problem is worse + for files which are not mapped read-only (archives again). + + +** size for STT_SECTION entries + + The STT_SECTION entries have zero for the size but can easily get + the size of the section. + +* elflint + +** additional checks + + 1st GOT entry == _DYNAMIC + + if TEXTREL check whether any relocation touches RO segment + + if TEXTREL not set check that no relocation touches RO segment + + check versioning info: + + always BASE in verdef + sh_size/sh_entsize matches last offset != 0 + + check whether any relocation is for a merge-able section + +** possibly missing tests + + at most one extended section index table for a symtab + + no extended section index table != ET_REL + + no extended section index table for SHT_DYNSYM + +** relax + + prelink generated files + + +* mcs + + Sun has it. Can modify sections which are not in segments. + + -a string + Append string to the comment section of the ELF object + files. If string contains embedded blanks, it must be + enclosed in quotation marks. + + -c Compress the contents of the comment section of the + ELF object files. All duplicate entries are removed. + The ordering of the remaining entries is not dis- + turbed. + + -d Delete the contents of the comment section from the + ELF object files. The section header for the comment + section is also removed. + + -n name + Specify the name of the comment section to access if + other than .comment. By default, mcs deals with the + section named .comment. This option can be used to + specify another section. mcs can take multiple -n + options to allow for specification of multiple sec- + tion comments. + + -p Print the contents of the comment section on the stan- + dard output. Each section printed is tagged by the + name of the file from which it was extracted, using + the format file[member_name]: for archive files and + file: for other files. + + -V Print on standard error the version number of mcs. + +Local Variables: +eval:(hide-body) +End: diff --git a/config/.cvsignore b/config/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/config/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/config/ChangeLog b/config/ChangeLog new file mode 100644 index 0000000..27adfbf --- /dev/null +++ b/config/ChangeLog @@ -0,0 +1,53 @@ +2005-07-21 Ulrich Drepper + + * elfutils.spec.in: Distribute eu-elfcmp. + +2005-04-01 Ulrich Drepper + + * elfutils.spec.in: Distribute eu-addr2line. + +2005-03-17 Ulrich Drepper + + * elfutils.spec.in: Distribute libdw.{a,so,h}. + +2005-02-22 Ulrich Drepper + + * Makefile.am: Ignore result of cvs run. + + * elfutils.spec.in: Simplify build process by not using a subdir. + This means we can use %configure. + +2005-02-18 Ulrich Drepper + + * Makefile.am: Automatically added changelog from NEWS file on dist. + +2005-02-15 Ulrich Drepper + + * elfutils.spec.in: Make sure RPM_OPT_FLAGS is used. During + %build, really do build the binaries. + Remove --enable-shared configure parameters. + +2005-02-07 Ulrich Drepper + + * elfutils.spec.in (BuildRequires): Up gcc requirement to 3.4. + +2004-11-23 Ulrich Drepper + + * elfutils.spec.in: Some more changes for the RPM with the fake + binaries. + +2004-01-29 Ulrich Drepper + + * elfutils.spec.in: Update BuildRequires. + +2004-01-17 Ulrich Drepper + + * Makefile.am: New file. + * config.guess: Moved to here from toplevel. + * config.rpath: Likewise. + * config.sub: Likewise. + * depcomp: Likewise. + * install-sh: Likewise. + * missing: Likewise. + * mkinstalldirs: Likewise. + * elfutils.spec.in: New file. diff --git a/config/Makefile.am b/config/Makefile.am new file mode 100644 index 0000000..45a78de --- /dev/null +++ b/config/Makefile.am @@ -0,0 +1,38 @@ +## Process this file with automake to produce Makefile.in -*-Makefile-*- +## Configure input file for elfutils. +## +## Copyright (C) 2004, 2005 Red Hat, Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, version 2. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software Foundation, +## Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +## +EXTRA_DIST = elfutils.spec.in + +$(srcdir)/elfutils.spec.in: $(top_srcdir)/NEWS + @tmpname=$$(mktemp $${TMPDIR:-/tmp}/elfutils.XXXXXX); \ + date +'* %a %b %e %Y' | tr '[\n]' '[ ]' > $$tmpname; \ + getent passwd "$$(whoami)" | \ + awk 'BEGIN {FS=":"} { printf $$5; exit 0}' >> $$tmpname; \ + echo -n " <$(whoami)@redhat.com> " >> $$tmpname; \ + sed 's/Version \(.*\):$$/\1-1/;q' $(top_srcdir)/NEWS >> $$tmpname; \ + sed '2,/^Version /p;d' $(top_srcdir)/NEWS | \ + head -n -1 | \ + awk '{ if ($$0 == "") { if (line != "") { printf "- "; fflush(); system("echo \"" line "\" | fold -w 70"); line=""; } } else { line=line $$0; }} END { if (line != "") { printf "- "; system("echo \"" line "\" | fold -w 70")}}' >> $$tmpname; \ + echo >> $$tmpname; \ + sed "/^%changelog/r $$tmpname" $@ > $@.new; \ + rm -f $$tmpname; \ + mv -f $@.new $@ + -@if [ -d $(srcdir)/CVS ]; then \ + cd $(srcdir); \ + cvs ci -m "Added changelog." $(@F); \ + fi diff --git a/config/config.guess b/config/config.guess new file mode 100644 index 0000000..dd1688b --- /dev/null +++ b/config/config.guess @@ -0,0 +1,1459 @@ +#! /bin/sh +# Attempt to guess a canonical system name. +# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, +# 2000, 2001, 2002, 2003 Free Software Foundation, Inc. + +timestamp='2004-06-11' + +# This file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Originally written by Per Bothner . +# Please send patches to . Submit a context +# diff and a properly formatted ChangeLog entry. +# +# This script attempts to guess a canonical system name similar to +# config.sub. If it succeeds, it prints the system name on stdout, and +# exits with 0. Otherwise, it exits with 1. +# +# The plan is that this can be called by configure scripts if you +# don't specify an explicit build system type. + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] + +Output the configuration name of the system \`$me' is run on. + +Operation modes: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to ." + +version="\ +GNU config.guess ($timestamp) + +Originally written by Per Bothner. +Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 +Free Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit 0 ;; + --version | -v ) + echo "$version" ; exit 0 ;; + --help | --h* | -h ) + echo "$usage"; exit 0 ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" >&2 + exit 1 ;; + * ) + break ;; + esac +done + +if test $# != 0; then + echo "$me: too many arguments$help" >&2 + exit 1 +fi + +trap 'exit 1' 1 2 15 + +# CC_FOR_BUILD -- compiler used by this script. Note that the use of a +# compiler to aid in system detection is discouraged as it requires +# temporary files to be created and, as you can see below, it is a +# headache to deal with in a portable fashion. + +# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still +# use `HOST_CC' if defined, but it is deprecated. + +# Portable tmp directory creation inspired by the Autoconf team. + +set_cc_for_build=' +trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ; +trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ; +: ${TMPDIR=/tmp} ; + { tmp=`(umask 077 && mktemp -d -q "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } || + { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } || + { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } || + { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ; +dummy=$tmp/dummy ; +tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ; +case $CC_FOR_BUILD,$HOST_CC,$CC in + ,,) echo "int x;" > $dummy.c ; + for c in cc gcc c89 c99 ; do + if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then + CC_FOR_BUILD="$c"; break ; + fi ; + done ; + if test x"$CC_FOR_BUILD" = x ; then + CC_FOR_BUILD=no_compiler_found ; + fi + ;; + ,,*) CC_FOR_BUILD=$CC ;; + ,*,*) CC_FOR_BUILD=$HOST_CC ;; +esac ;' + +# This is needed to find uname on a Pyramid OSx when run in the BSD universe. +# (ghazi@noc.rutgers.edu 1994-08-24) +if (test -f /.attbin/uname) >/dev/null 2>&1 ; then + PATH=$PATH:/.attbin ; export PATH +fi + +UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown +UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown +UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown +UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown + +# Note: order is significant - the case branches are not exclusive. + +case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in + *:NetBSD:*:*) + # NetBSD (nbsd) targets should (where applicable) match one or + # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*, + # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently + # switched to ELF, *-*-netbsd* would select the old + # object file format. This provides both forward + # compatibility and a consistent mechanism for selecting the + # object file format. + # + # Note: NetBSD doesn't particularly care about the vendor + # portion of the name. We always set it to "unknown". + sysctl="sysctl -n hw.machine_arch" + UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \ + /usr/sbin/$sysctl 2>/dev/null || echo unknown)` + case "${UNAME_MACHINE_ARCH}" in + armeb) machine=armeb-unknown ;; + arm*) machine=arm-unknown ;; + sh3el) machine=shl-unknown ;; + sh3eb) machine=sh-unknown ;; + *) machine=${UNAME_MACHINE_ARCH}-unknown ;; + esac + # The Operating System including object format, if it has switched + # to ELF recently, or will in the future. + case "${UNAME_MACHINE_ARCH}" in + arm*|i386|m68k|ns32k|sh3*|sparc|vax) + eval $set_cc_for_build + if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep __ELF__ >/dev/null + then + # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout). + # Return netbsd for either. FIX? + os=netbsd + else + os=netbsdelf + fi + ;; + *) + os=netbsd + ;; + esac + # The OS release + # Debian GNU/NetBSD machines have a different userland, and + # thus, need a distinct triplet. However, they do not need + # kernel version information, so it can be replaced with a + # suitable tag, in the style of linux-gnu. + case "${UNAME_VERSION}" in + Debian*) + release='-gnu' + ;; + *) + release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'` + ;; + esac + # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM: + # contains redundant information, the shorter form: + # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used. + echo "${machine}-${os}${release}" + exit 0 ;; + amd64:OpenBSD:*:*) + echo x86_64-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + amiga:OpenBSD:*:*) + echo m68k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + arc:OpenBSD:*:*) + echo mipsel-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + cats:OpenBSD:*:*) + echo arm-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + hp300:OpenBSD:*:*) + echo m68k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + luna88k:OpenBSD:*:*) + echo m88k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + mac68k:OpenBSD:*:*) + echo m68k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + macppc:OpenBSD:*:*) + echo powerpc-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + mvme68k:OpenBSD:*:*) + echo m68k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + mvme88k:OpenBSD:*:*) + echo m88k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + mvmeppc:OpenBSD:*:*) + echo powerpc-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + pmax:OpenBSD:*:*) + echo mipsel-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + sgi:OpenBSD:*:*) + echo mipseb-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + sun3:OpenBSD:*:*) + echo m68k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + wgrisc:OpenBSD:*:*) + echo mipsel-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + *:OpenBSD:*:*) + echo ${UNAME_MACHINE}-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + *:ekkoBSD:*:*) + echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE} + exit 0 ;; + macppc:MirBSD:*:*) + echo powerppc-unknown-mirbsd${UNAME_RELEASE} + exit 0 ;; + *:MirBSD:*:*) + echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE} + exit 0 ;; + alpha:OSF1:*:*) + case $UNAME_RELEASE in + *4.0) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'` + ;; + *5.*) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'` + ;; + esac + # According to Compaq, /usr/sbin/psrinfo has been available on + # OSF/1 and Tru64 systems produced since 1995. I hope that + # covers most systems running today. This code pipes the CPU + # types through head -n 1, so we only detect the type of CPU 0. + ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1` + case "$ALPHA_CPU_TYPE" in + "EV4 (21064)") + UNAME_MACHINE="alpha" ;; + "EV4.5 (21064)") + UNAME_MACHINE="alpha" ;; + "LCA4 (21066/21068)") + UNAME_MACHINE="alpha" ;; + "EV5 (21164)") + UNAME_MACHINE="alphaev5" ;; + "EV5.6 (21164A)") + UNAME_MACHINE="alphaev56" ;; + "EV5.6 (21164PC)") + UNAME_MACHINE="alphapca56" ;; + "EV5.7 (21164PC)") + UNAME_MACHINE="alphapca57" ;; + "EV6 (21264)") + UNAME_MACHINE="alphaev6" ;; + "EV6.7 (21264A)") + UNAME_MACHINE="alphaev67" ;; + "EV6.8CB (21264C)") + UNAME_MACHINE="alphaev68" ;; + "EV6.8AL (21264B)") + UNAME_MACHINE="alphaev68" ;; + "EV6.8CX (21264D)") + UNAME_MACHINE="alphaev68" ;; + "EV6.9A (21264/EV69A)") + UNAME_MACHINE="alphaev69" ;; + "EV7 (21364)") + UNAME_MACHINE="alphaev7" ;; + "EV7.9 (21364A)") + UNAME_MACHINE="alphaev79" ;; + esac + # A Pn.n version is a patched version. + # A Vn.n version is a released version. + # A Tn.n version is a released field test version. + # A Xn.n version is an unreleased experimental baselevel. + # 1.2 uses "1.2" for uname -r. + echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` + exit 0 ;; + Alpha*:OpenVMS:*:*) + echo alpha-hp-vms + exit 0 ;; + Alpha\ *:Windows_NT*:*) + # How do we know it's Interix rather than the generic POSIX subsystem? + # Should we change UNAME_MACHINE based on the output of uname instead + # of the specific Alpha model? + echo alpha-pc-interix + exit 0 ;; + 21064:Windows_NT:50:3) + echo alpha-dec-winnt3.5 + exit 0 ;; + Amiga*:UNIX_System_V:4.0:*) + echo m68k-unknown-sysv4 + exit 0;; + *:[Aa]miga[Oo][Ss]:*:*) + echo ${UNAME_MACHINE}-unknown-amigaos + exit 0 ;; + *:[Mm]orph[Oo][Ss]:*:*) + echo ${UNAME_MACHINE}-unknown-morphos + exit 0 ;; + *:OS/390:*:*) + echo i370-ibm-openedition + exit 0 ;; + *:OS400:*:*) + echo powerpc-ibm-os400 + exit 0 ;; + arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) + echo arm-acorn-riscix${UNAME_RELEASE} + exit 0;; + SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*) + echo hppa1.1-hitachi-hiuxmpp + exit 0;; + Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*) + # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE. + if test "`(/bin/universe) 2>/dev/null`" = att ; then + echo pyramid-pyramid-sysv3 + else + echo pyramid-pyramid-bsd + fi + exit 0 ;; + NILE*:*:*:dcosx) + echo pyramid-pyramid-svr4 + exit 0 ;; + DRS?6000:unix:4.0:6*) + echo sparc-icl-nx6 + exit 0 ;; + DRS?6000:UNIX_SV:4.2*:7*) + case `/usr/bin/uname -p` in + sparc) echo sparc-icl-nx7 && exit 0 ;; + esac ;; + sun4H:SunOS:5.*:*) + echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit 0 ;; + sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) + echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit 0 ;; + i86pc:SunOS:5.*:*) + echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit 0 ;; + sun4*:SunOS:6*:*) + # According to config.sub, this is the proper way to canonicalize + # SunOS6. Hard to guess exactly what SunOS6 will be like, but + # it's likely to be more like Solaris than SunOS4. + echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit 0 ;; + sun4*:SunOS:*:*) + case "`/usr/bin/arch -k`" in + Series*|S4*) + UNAME_RELEASE=`uname -v` + ;; + esac + # Japanese Language versions have a version number like `4.1.3-JL'. + echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'` + exit 0 ;; + sun3*:SunOS:*:*) + echo m68k-sun-sunos${UNAME_RELEASE} + exit 0 ;; + sun*:*:4.2BSD:*) + UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` + test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3 + case "`/bin/arch`" in + sun3) + echo m68k-sun-sunos${UNAME_RELEASE} + ;; + sun4) + echo sparc-sun-sunos${UNAME_RELEASE} + ;; + esac + exit 0 ;; + aushp:SunOS:*:*) + echo sparc-auspex-sunos${UNAME_RELEASE} + exit 0 ;; + # The situation for MiNT is a little confusing. The machine name + # can be virtually everything (everything which is not + # "atarist" or "atariste" at least should have a processor + # > m68000). The system name ranges from "MiNT" over "FreeMiNT" + # to the lowercase version "mint" (or "freemint"). Finally + # the system name "TOS" denotes a system which is actually not + # MiNT. But MiNT is downward compatible to TOS, so this should + # be no problem. + atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit 0 ;; + atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit 0 ;; + *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit 0 ;; + milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) + echo m68k-milan-mint${UNAME_RELEASE} + exit 0 ;; + hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) + echo m68k-hades-mint${UNAME_RELEASE} + exit 0 ;; + *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) + echo m68k-unknown-mint${UNAME_RELEASE} + exit 0 ;; + m68k:machten:*:*) + echo m68k-apple-machten${UNAME_RELEASE} + exit 0 ;; + powerpc:machten:*:*) + echo powerpc-apple-machten${UNAME_RELEASE} + exit 0 ;; + RISC*:Mach:*:*) + echo mips-dec-mach_bsd4.3 + exit 0 ;; + RISC*:ULTRIX:*:*) + echo mips-dec-ultrix${UNAME_RELEASE} + exit 0 ;; + VAX*:ULTRIX*:*:*) + echo vax-dec-ultrix${UNAME_RELEASE} + exit 0 ;; + 2020:CLIX:*:* | 2430:CLIX:*:*) + echo clipper-intergraph-clix${UNAME_RELEASE} + exit 0 ;; + mips:*:*:UMIPS | mips:*:*:RISCos) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c +#ifdef __cplusplus +#include /* for printf() prototype */ + int main (int argc, char *argv[]) { +#else + int main (argc, argv) int argc; char *argv[]; { +#endif + #if defined (host_mips) && defined (MIPSEB) + #if defined (SYSTYPE_SYSV) + printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_SVR4) + printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) + printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); + #endif + #endif + exit (-1); + } +EOF + $CC_FOR_BUILD -o $dummy $dummy.c \ + && $dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \ + && exit 0 + echo mips-mips-riscos${UNAME_RELEASE} + exit 0 ;; + Motorola:PowerMAX_OS:*:*) + echo powerpc-motorola-powermax + exit 0 ;; + Motorola:*:4.3:PL8-*) + echo powerpc-harris-powermax + exit 0 ;; + Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) + echo powerpc-harris-powermax + exit 0 ;; + Night_Hawk:Power_UNIX:*:*) + echo powerpc-harris-powerunix + exit 0 ;; + m88k:CX/UX:7*:*) + echo m88k-harris-cxux7 + exit 0 ;; + m88k:*:4*:R4*) + echo m88k-motorola-sysv4 + exit 0 ;; + m88k:*:3*:R3*) + echo m88k-motorola-sysv3 + exit 0 ;; + AViiON:dgux:*:*) + # DG/UX returns AViiON for all architectures + UNAME_PROCESSOR=`/usr/bin/uname -p` + if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] + then + if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ + [ ${TARGET_BINARY_INTERFACE}x = x ] + then + echo m88k-dg-dgux${UNAME_RELEASE} + else + echo m88k-dg-dguxbcs${UNAME_RELEASE} + fi + else + echo i586-dg-dgux${UNAME_RELEASE} + fi + exit 0 ;; + M88*:DolphinOS:*:*) # DolphinOS (SVR3) + echo m88k-dolphin-sysv3 + exit 0 ;; + M88*:*:R3*:*) + # Delta 88k system running SVR3 + echo m88k-motorola-sysv3 + exit 0 ;; + XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) + echo m88k-tektronix-sysv3 + exit 0 ;; + Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) + echo m68k-tektronix-bsd + exit 0 ;; + *:IRIX*:*:*) + echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` + exit 0 ;; + ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. + echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id + exit 0 ;; # Note that: echo "'`uname -s`'" gives 'AIX ' + i*86:AIX:*:*) + echo i386-ibm-aix + exit 0 ;; + ia64:AIX:*:*) + if [ -x /usr/bin/oslevel ] ; then + IBM_REV=`/usr/bin/oslevel` + else + IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} + fi + echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} + exit 0 ;; + *:AIX:2:3) + if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include + + main() + { + if (!__power_pc()) + exit(1); + puts("powerpc-ibm-aix3.2.5"); + exit(0); + } +EOF + $CC_FOR_BUILD -o $dummy $dummy.c && $dummy && exit 0 + echo rs6000-ibm-aix3.2.5 + elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then + echo rs6000-ibm-aix3.2.4 + else + echo rs6000-ibm-aix3.2 + fi + exit 0 ;; + *:AIX:*:[45]) + IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` + if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then + IBM_ARCH=rs6000 + else + IBM_ARCH=powerpc + fi + if [ -x /usr/bin/oslevel ] ; then + IBM_REV=`/usr/bin/oslevel` + else + IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} + fi + echo ${IBM_ARCH}-ibm-aix${IBM_REV} + exit 0 ;; + *:AIX:*:*) + echo rs6000-ibm-aix + exit 0 ;; + ibmrt:4.4BSD:*|romp-ibm:BSD:*) + echo romp-ibm-bsd4.4 + exit 0 ;; + ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and + echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to + exit 0 ;; # report: romp-ibm BSD 4.3 + *:BOSX:*:*) + echo rs6000-bull-bosx + exit 0 ;; + DPX/2?00:B.O.S.:*:*) + echo m68k-bull-sysv3 + exit 0 ;; + 9000/[34]??:4.3bsd:1.*:*) + echo m68k-hp-bsd + exit 0 ;; + hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) + echo m68k-hp-bsd4.4 + exit 0 ;; + 9000/[34678]??:HP-UX:*:*) + HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` + case "${UNAME_MACHINE}" in + 9000/31? ) HP_ARCH=m68000 ;; + 9000/[34]?? ) HP_ARCH=m68k ;; + 9000/[678][0-9][0-9]) + if [ -x /usr/bin/getconf ]; then + sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` + sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` + case "${sc_cpu_version}" in + 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 + 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 + 532) # CPU_PA_RISC2_0 + case "${sc_kernel_bits}" in + 32) HP_ARCH="hppa2.0n" ;; + 64) HP_ARCH="hppa2.0w" ;; + '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 + esac ;; + esac + fi + if [ "${HP_ARCH}" = "" ]; then + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + + #define _HPUX_SOURCE + #include + #include + + int main () + { + #if defined(_SC_KERNEL_BITS) + long bits = sysconf(_SC_KERNEL_BITS); + #endif + long cpu = sysconf (_SC_CPU_VERSION); + + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1"); break; + case CPU_PA_RISC2_0: + #if defined(_SC_KERNEL_BITS) + switch (bits) + { + case 64: puts ("hppa2.0w"); break; + case 32: puts ("hppa2.0n"); break; + default: puts ("hppa2.0"); break; + } break; + #else /* !defined(_SC_KERNEL_BITS) */ + puts ("hppa2.0"); break; + #endif + default: puts ("hppa1.0"); break; + } + exit (0); + } +EOF + (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` + test -z "$HP_ARCH" && HP_ARCH=hppa + fi ;; + esac + if [ ${HP_ARCH} = "hppa2.0w" ] + then + # avoid double evaluation of $set_cc_for_build + test -n "$CC_FOR_BUILD" || eval $set_cc_for_build + if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E -) | grep __LP64__ >/dev/null + then + HP_ARCH="hppa2.0w" + else + HP_ARCH="hppa64" + fi + fi + echo ${HP_ARCH}-hp-hpux${HPUX_REV} + exit 0 ;; + ia64:HP-UX:*:*) + HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` + echo ia64-hp-hpux${HPUX_REV} + exit 0 ;; + 3050*:HI-UX:*:*) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include + int + main () + { + long cpu = sysconf (_SC_CPU_VERSION); + /* The order matters, because CPU_IS_HP_MC68K erroneously returns + true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct + results, however. */ + if (CPU_IS_PA_RISC (cpu)) + { + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; + case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; + default: puts ("hppa-hitachi-hiuxwe2"); break; + } + } + else if (CPU_IS_HP_MC68K (cpu)) + puts ("m68k-hitachi-hiuxwe2"); + else puts ("unknown-hitachi-hiuxwe2"); + exit (0); + } +EOF + $CC_FOR_BUILD -o $dummy $dummy.c && $dummy && exit 0 + echo unknown-hitachi-hiuxwe2 + exit 0 ;; + 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) + echo hppa1.1-hp-bsd + exit 0 ;; + 9000/8??:4.3bsd:*:*) + echo hppa1.0-hp-bsd + exit 0 ;; + *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) + echo hppa1.0-hp-mpeix + exit 0 ;; + hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) + echo hppa1.1-hp-osf + exit 0 ;; + hp8??:OSF1:*:*) + echo hppa1.0-hp-osf + exit 0 ;; + i*86:OSF1:*:*) + if [ -x /usr/sbin/sysversion ] ; then + echo ${UNAME_MACHINE}-unknown-osf1mk + else + echo ${UNAME_MACHINE}-unknown-osf1 + fi + exit 0 ;; + parisc*:Lites*:*:*) + echo hppa1.1-hp-lites + exit 0 ;; + C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) + echo c1-convex-bsd + exit 0 ;; + C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) + if getsysinfo -f scalar_acc + then echo c32-convex-bsd + else echo c2-convex-bsd + fi + exit 0 ;; + C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) + echo c34-convex-bsd + exit 0 ;; + C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) + echo c38-convex-bsd + exit 0 ;; + C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) + echo c4-convex-bsd + exit 0 ;; + CRAY*Y-MP:*:*:*) + echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit 0 ;; + CRAY*[A-Z]90:*:*:*) + echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ + | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ + -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ + -e 's/\.[^.]*$/.X/' + exit 0 ;; + CRAY*TS:*:*:*) + echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit 0 ;; + CRAY*T3E:*:*:*) + echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit 0 ;; + CRAY*SV1:*:*:*) + echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit 0 ;; + *:UNICOS/mp:*:*) + echo nv1-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit 0 ;; + F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) + FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` + FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` + FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` + echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit 0 ;; + 5000:UNIX_System_V:4.*:*) + FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` + FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` + echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit 0 ;; + i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) + echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} + exit 0 ;; + sparc*:BSD/OS:*:*) + echo sparc-unknown-bsdi${UNAME_RELEASE} + exit 0 ;; + *:BSD/OS:*:*) + echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} + exit 0 ;; + *:FreeBSD:*:*) + # Determine whether the default compiler uses glibc. + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include + #if __GLIBC__ >= 2 + LIBC=gnu + #else + LIBC= + #endif +EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=` + # GNU/KFreeBSD systems have a "k" prefix to indicate we are using + # FreeBSD's kernel, but not the complete OS. + case ${LIBC} in gnu) kernel_only='k' ;; esac + echo ${UNAME_MACHINE}-unknown-${kernel_only}freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`${LIBC:+-$LIBC} + exit 0 ;; + i*:CYGWIN*:*) + echo ${UNAME_MACHINE}-pc-cygwin + exit 0 ;; + i*:MINGW*:*) + echo ${UNAME_MACHINE}-pc-mingw32 + exit 0 ;; + i*:PW*:*) + echo ${UNAME_MACHINE}-pc-pw32 + exit 0 ;; + x86:Interix*:[34]*) + echo i586-pc-interix${UNAME_RELEASE}|sed -e 's/\..*//' + exit 0 ;; + [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) + echo i${UNAME_MACHINE}-pc-mks + exit 0 ;; + i*:Windows_NT*:* | Pentium*:Windows_NT*:*) + # How do we know it's Interix rather than the generic POSIX subsystem? + # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we + # UNAME_MACHINE based on the output of uname instead of i386? + echo i586-pc-interix + exit 0 ;; + i*:UWIN*:*) + echo ${UNAME_MACHINE}-pc-uwin + exit 0 ;; + p*:CYGWIN*:*) + echo powerpcle-unknown-cygwin + exit 0 ;; + prep*:SunOS:5.*:*) + echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit 0 ;; + *:GNU:*:*) + # the GNU system + echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` + exit 0 ;; + *:GNU/*:*:*) + # other systems with GNU libc and userland + echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu + exit 0 ;; + i*86:Minix:*:*) + echo ${UNAME_MACHINE}-pc-minix + exit 0 ;; + arm*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + cris:Linux:*:*) + echo cris-axis-linux-gnu + exit 0 ;; + ia64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + m32r*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + m68*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + mips:Linux:*:*) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #undef CPU + #undef mips + #undef mipsel + #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) + CPU=mipsel + #else + #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) + CPU=mips + #else + CPU= + #endif + #endif +EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=` + test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0 + ;; + mips64:Linux:*:*) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #undef CPU + #undef mips64 + #undef mips64el + #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) + CPU=mips64el + #else + #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) + CPU=mips64 + #else + CPU= + #endif + #endif +EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=` + test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0 + ;; + ppc:Linux:*:*) + echo powerpc-unknown-linux-gnu + exit 0 ;; + ppc64:Linux:*:*) + echo powerpc64-unknown-linux-gnu + exit 0 ;; + alpha:Linux:*:*) + case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in + EV5) UNAME_MACHINE=alphaev5 ;; + EV56) UNAME_MACHINE=alphaev56 ;; + PCA56) UNAME_MACHINE=alphapca56 ;; + PCA57) UNAME_MACHINE=alphapca56 ;; + EV6) UNAME_MACHINE=alphaev6 ;; + EV67) UNAME_MACHINE=alphaev67 ;; + EV68*) UNAME_MACHINE=alphaev68 ;; + esac + objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null + if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi + echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC} + exit 0 ;; + parisc:Linux:*:* | hppa:Linux:*:*) + # Look for CPU level + case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in + PA7*) echo hppa1.1-unknown-linux-gnu ;; + PA8*) echo hppa2.0-unknown-linux-gnu ;; + *) echo hppa-unknown-linux-gnu ;; + esac + exit 0 ;; + parisc64:Linux:*:* | hppa64:Linux:*:*) + echo hppa64-unknown-linux-gnu + exit 0 ;; + s390:Linux:*:* | s390x:Linux:*:*) + echo ${UNAME_MACHINE}-ibm-linux + exit 0 ;; + sh64*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + sh*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + sparc:Linux:*:* | sparc64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + x86_64:Linux:*:*) + echo x86_64-unknown-linux-gnu + exit 0 ;; + i*86:Linux:*:*) + # The BFD linker knows what the default object file format is, so + # first see if it will tell us. cd to the root directory to prevent + # problems with other programs or directories called `ld' in the path. + # Set LC_ALL=C to ensure ld outputs messages in English. + ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \ + | sed -ne '/supported targets:/!d + s/[ ][ ]*/ /g + s/.*supported targets: *// + s/ .*// + p'` + case "$ld_supported_targets" in + elf32-i386) + TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu" + ;; + a.out-i386-linux) + echo "${UNAME_MACHINE}-pc-linux-gnuaout" + exit 0 ;; + coff-i386) + echo "${UNAME_MACHINE}-pc-linux-gnucoff" + exit 0 ;; + "") + # Either a pre-BFD a.out linker (linux-gnuoldld) or + # one that does not give us useful --help. + echo "${UNAME_MACHINE}-pc-linux-gnuoldld" + exit 0 ;; + esac + # Determine whether the default compiler is a.out or elf + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include + #ifdef __ELF__ + # ifdef __GLIBC__ + # if __GLIBC__ >= 2 + LIBC=gnu + # else + LIBC=gnulibc1 + # endif + # else + LIBC=gnulibc1 + # endif + #else + #ifdef __INTEL_COMPILER + LIBC=gnu + #else + LIBC=gnuaout + #endif + #endif + #ifdef __dietlibc__ + LIBC=dietlibc + #endif +EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=` + test x"${LIBC}" != x && echo "${UNAME_MACHINE}-pc-linux-${LIBC}" && exit 0 + test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0 + ;; + i*86:DYNIX/ptx:4*:*) + # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. + # earlier versions are messed up and put the nodename in both + # sysname and nodename. + echo i386-sequent-sysv4 + exit 0 ;; + i*86:UNIX_SV:4.2MP:2.*) + # Unixware is an offshoot of SVR4, but it has its own version + # number series starting with 2... + # I am not positive that other SVR4 systems won't match this, + # I just have to hope. -- rms. + # Use sysv4.2uw... so that sysv4* matches it. + echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} + exit 0 ;; + i*86:OS/2:*:*) + # If we were able to find `uname', then EMX Unix compatibility + # is probably installed. + echo ${UNAME_MACHINE}-pc-os2-emx + exit 0 ;; + i*86:XTS-300:*:STOP) + echo ${UNAME_MACHINE}-unknown-stop + exit 0 ;; + i*86:atheos:*:*) + echo ${UNAME_MACHINE}-unknown-atheos + exit 0 ;; + i*86:syllable:*:*) + echo ${UNAME_MACHINE}-pc-syllable + exit 0 ;; + i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*) + echo i386-unknown-lynxos${UNAME_RELEASE} + exit 0 ;; + i*86:*DOS:*:*) + echo ${UNAME_MACHINE}-pc-msdosdjgpp + exit 0 ;; + i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) + UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` + if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then + echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} + else + echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} + fi + exit 0 ;; + i*86:*:5:[78]*) + case `/bin/uname -X | grep "^Machine"` in + *486*) UNAME_MACHINE=i486 ;; + *Pentium) UNAME_MACHINE=i586 ;; + *Pent*|*Celeron) UNAME_MACHINE=i686 ;; + esac + echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} + exit 0 ;; + i*86:*:3.2:*) + if test -f /usr/options/cb.name; then + UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then + UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` + (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 + (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ + && UNAME_MACHINE=i586 + (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ + && UNAME_MACHINE=i686 + (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ + && UNAME_MACHINE=i686 + echo ${UNAME_MACHINE}-pc-sco$UNAME_REL + else + echo ${UNAME_MACHINE}-pc-sysv32 + fi + exit 0 ;; + pc:*:*:*) + # Left here for compatibility: + # uname -m prints for DJGPP always 'pc', but it prints nothing about + # the processor, so we play safe by assuming i386. + echo i386-pc-msdosdjgpp + exit 0 ;; + Intel:Mach:3*:*) + echo i386-pc-mach3 + exit 0 ;; + paragon:*:*:*) + echo i860-intel-osf1 + exit 0 ;; + i860:*:4.*:*) # i860-SVR4 + if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then + echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4 + else # Add other i860-SVR4 vendors below as they are discovered. + echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4 + fi + exit 0 ;; + mini*:CTIX:SYS*5:*) + # "miniframe" + echo m68010-convergent-sysv + exit 0 ;; + mc68k:UNIX:SYSTEM5:3.51m) + echo m68k-convergent-sysv + exit 0 ;; + M680?0:D-NIX:5.3:*) + echo m68k-diab-dnix + exit 0 ;; + M68*:*:R3V[5678]*:*) + test -r /sysV68 && echo 'm68k-motorola-sysv' && exit 0 ;; + 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0) + OS_REL='' + test -r /etc/.relid \ + && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && echo i486-ncr-sysv4.3${OS_REL} && exit 0 + /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ + && echo i586-ncr-sysv4.3${OS_REL} && exit 0 ;; + 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && echo i486-ncr-sysv4 && exit 0 ;; + m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) + echo m68k-unknown-lynxos${UNAME_RELEASE} + exit 0 ;; + mc68030:UNIX_System_V:4.*:*) + echo m68k-atari-sysv4 + exit 0 ;; + TSUNAMI:LynxOS:2.*:*) + echo sparc-unknown-lynxos${UNAME_RELEASE} + exit 0 ;; + rs6000:LynxOS:2.*:*) + echo rs6000-unknown-lynxos${UNAME_RELEASE} + exit 0 ;; + PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*) + echo powerpc-unknown-lynxos${UNAME_RELEASE} + exit 0 ;; + SM[BE]S:UNIX_SV:*:*) + echo mips-dde-sysv${UNAME_RELEASE} + exit 0 ;; + RM*:ReliantUNIX-*:*:*) + echo mips-sni-sysv4 + exit 0 ;; + RM*:SINIX-*:*:*) + echo mips-sni-sysv4 + exit 0 ;; + *:SINIX-*:*:*) + if uname -p 2>/dev/null >/dev/null ; then + UNAME_MACHINE=`(uname -p) 2>/dev/null` + echo ${UNAME_MACHINE}-sni-sysv4 + else + echo ns32k-sni-sysv + fi + exit 0 ;; + PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort + # says + echo i586-unisys-sysv4 + exit 0 ;; + *:UNIX_System_V:4*:FTX*) + # From Gerald Hewes . + # How about differentiating between stratus architectures? -djm + echo hppa1.1-stratus-sysv4 + exit 0 ;; + *:*:*:FTX*) + # From seanf@swdc.stratus.com. + echo i860-stratus-sysv4 + exit 0 ;; + *:VOS:*:*) + # From Paul.Green@stratus.com. + echo hppa1.1-stratus-vos + exit 0 ;; + mc68*:A/UX:*:*) + echo m68k-apple-aux${UNAME_RELEASE} + exit 0 ;; + news*:NEWS-OS:6*:*) + echo mips-sony-newsos6 + exit 0 ;; + R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) + if [ -d /usr/nec ]; then + echo mips-nec-sysv${UNAME_RELEASE} + else + echo mips-unknown-sysv${UNAME_RELEASE} + fi + exit 0 ;; + BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. + echo powerpc-be-beos + exit 0 ;; + BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. + echo powerpc-apple-beos + exit 0 ;; + BePC:BeOS:*:*) # BeOS running on Intel PC compatible. + echo i586-pc-beos + exit 0 ;; + SX-4:SUPER-UX:*:*) + echo sx4-nec-superux${UNAME_RELEASE} + exit 0 ;; + SX-5:SUPER-UX:*:*) + echo sx5-nec-superux${UNAME_RELEASE} + exit 0 ;; + SX-6:SUPER-UX:*:*) + echo sx6-nec-superux${UNAME_RELEASE} + exit 0 ;; + Power*:Rhapsody:*:*) + echo powerpc-apple-rhapsody${UNAME_RELEASE} + exit 0 ;; + *:Rhapsody:*:*) + echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE} + exit 0 ;; + *:Darwin:*:*) + case `uname -p` in + *86) UNAME_PROCESSOR=i686 ;; + powerpc) UNAME_PROCESSOR=powerpc ;; + esac + echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE} + exit 0 ;; + *:procnto*:*:* | *:QNX:[0123456789]*:*) + UNAME_PROCESSOR=`uname -p` + if test "$UNAME_PROCESSOR" = "x86"; then + UNAME_PROCESSOR=i386 + UNAME_MACHINE=pc + fi + echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE} + exit 0 ;; + *:QNX:*:4*) + echo i386-pc-qnx + exit 0 ;; + NSR-?:NONSTOP_KERNEL:*:*) + echo nsr-tandem-nsk${UNAME_RELEASE} + exit 0 ;; + *:NonStop-UX:*:*) + echo mips-compaq-nonstopux + exit 0 ;; + BS2000:POSIX*:*:*) + echo bs2000-siemens-sysv + exit 0 ;; + DS/*:UNIX_System_V:*:*) + echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE} + exit 0 ;; + *:Plan9:*:*) + # "uname -m" is not consistent, so use $cputype instead. 386 + # is converted to i386 for consistency with other x86 + # operating systems. + if test "$cputype" = "386"; then + UNAME_MACHINE=i386 + else + UNAME_MACHINE="$cputype" + fi + echo ${UNAME_MACHINE}-unknown-plan9 + exit 0 ;; + *:TOPS-10:*:*) + echo pdp10-unknown-tops10 + exit 0 ;; + *:TENEX:*:*) + echo pdp10-unknown-tenex + exit 0 ;; + KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) + echo pdp10-dec-tops20 + exit 0 ;; + XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) + echo pdp10-xkl-tops20 + exit 0 ;; + *:TOPS-20:*:*) + echo pdp10-unknown-tops20 + exit 0 ;; + *:ITS:*:*) + echo pdp10-unknown-its + exit 0 ;; + SEI:*:*:SEIUX) + echo mips-sei-seiux${UNAME_RELEASE} + exit 0 ;; + *:DragonFly:*:*) + echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` + exit 0 ;; +esac + +#echo '(No uname command or uname output not recognized.)' 1>&2 +#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 + +eval $set_cc_for_build +cat >$dummy.c < +# include +#endif +main () +{ +#if defined (sony) +#if defined (MIPSEB) + /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed, + I don't know.... */ + printf ("mips-sony-bsd\n"); exit (0); +#else +#include + printf ("m68k-sony-newsos%s\n", +#ifdef NEWSOS4 + "4" +#else + "" +#endif + ); exit (0); +#endif +#endif + +#if defined (__arm) && defined (__acorn) && defined (__unix) + printf ("arm-acorn-riscix"); exit (0); +#endif + +#if defined (hp300) && !defined (hpux) + printf ("m68k-hp-bsd\n"); exit (0); +#endif + +#if defined (NeXT) +#if !defined (__ARCHITECTURE__) +#define __ARCHITECTURE__ "m68k" +#endif + int version; + version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; + if (version < 4) + printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version); + else + printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version); + exit (0); +#endif + +#if defined (MULTIMAX) || defined (n16) +#if defined (UMAXV) + printf ("ns32k-encore-sysv\n"); exit (0); +#else +#if defined (CMU) + printf ("ns32k-encore-mach\n"); exit (0); +#else + printf ("ns32k-encore-bsd\n"); exit (0); +#endif +#endif +#endif + +#if defined (__386BSD__) + printf ("i386-pc-bsd\n"); exit (0); +#endif + +#if defined (sequent) +#if defined (i386) + printf ("i386-sequent-dynix\n"); exit (0); +#endif +#if defined (ns32000) + printf ("ns32k-sequent-dynix\n"); exit (0); +#endif +#endif + +#if defined (_SEQUENT_) + struct utsname un; + + uname(&un); + + if (strncmp(un.version, "V2", 2) == 0) { + printf ("i386-sequent-ptx2\n"); exit (0); + } + if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */ + printf ("i386-sequent-ptx1\n"); exit (0); + } + printf ("i386-sequent-ptx\n"); exit (0); + +#endif + +#if defined (vax) +# if !defined (ultrix) +# include +# if defined (BSD) +# if BSD == 43 + printf ("vax-dec-bsd4.3\n"); exit (0); +# else +# if BSD == 199006 + printf ("vax-dec-bsd4.3reno\n"); exit (0); +# else + printf ("vax-dec-bsd\n"); exit (0); +# endif +# endif +# else + printf ("vax-dec-bsd\n"); exit (0); +# endif +# else + printf ("vax-dec-ultrix\n"); exit (0); +# endif +#endif + +#if defined (alliant) && defined (i860) + printf ("i860-alliant-bsd\n"); exit (0); +#endif + + exit (1); +} +EOF + +$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && $dummy && exit 0 + +# Apollos put the system type in the environment. + +test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit 0; } + +# Convex versions that predate uname can use getsysinfo(1) + +if [ -x /usr/convex/getsysinfo ] +then + case `getsysinfo -f cpu_type` in + c1*) + echo c1-convex-bsd + exit 0 ;; + c2*) + if getsysinfo -f scalar_acc + then echo c32-convex-bsd + else echo c2-convex-bsd + fi + exit 0 ;; + c34*) + echo c34-convex-bsd + exit 0 ;; + c38*) + echo c38-convex-bsd + exit 0 ;; + c4*) + echo c4-convex-bsd + exit 0 ;; + esac +fi + +cat >&2 < in order to provide the needed +information to handle your system. + +config.guess timestamp = $timestamp + +uname -m = `(uname -m) 2>/dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null` + +hostinfo = `(hostinfo) 2>/dev/null` +/bin/universe = `(/bin/universe) 2>/dev/null` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` +/bin/arch = `(/bin/arch) 2>/dev/null` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` + +UNAME_MACHINE = ${UNAME_MACHINE} +UNAME_RELEASE = ${UNAME_RELEASE} +UNAME_SYSTEM = ${UNAME_SYSTEM} +UNAME_VERSION = ${UNAME_VERSION} +EOF + +exit 1 + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/config/config.sub b/config/config.sub new file mode 100644 index 0000000..ba33103 --- /dev/null +++ b/config/config.sub @@ -0,0 +1,1549 @@ +#! /bin/sh +# Configuration validation subroutine script. +# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, +# 2000, 2001, 2002, 2003 Free Software Foundation, Inc. + +timestamp='2004-03-12' + +# This file is (in principle) common to ALL GNU software. +# The presence of a machine in this file suggests that SOME GNU software +# can handle that machine. It does not imply ALL GNU software can. +# +# This file is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, +# Boston, MA 02111-1307, USA. + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Please send patches to . Submit a context +# diff and a properly formatted ChangeLog entry. +# +# Configuration subroutine to validate and canonicalize a configuration type. +# Supply the specified configuration type as an argument. +# If it is invalid, we print an error message on stderr and exit with code 1. +# Otherwise, we print the canonical config type on stdout and succeed. + +# This file is supposed to be the same for all GNU packages +# and recognize all the CPU types, system types and aliases +# that are meaningful with *any* GNU software. +# Each package is responsible for reporting which valid configurations +# it does not support. The user should be able to distinguish +# a failure to support a valid configuration from a meaningless +# configuration. + +# The goal of this file is to map all the various variations of a given +# machine specification into a single specification in the form: +# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM +# or in some cases, the newer four-part form: +# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM +# It is wrong to echo any other type of specification. + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] CPU-MFR-OPSYS + $0 [OPTION] ALIAS + +Canonicalize a configuration name. + +Operation modes: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to ." + +version="\ +GNU config.sub ($timestamp) + +Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 +Free Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit 0 ;; + --version | -v ) + echo "$version" ; exit 0 ;; + --help | --h* | -h ) + echo "$usage"; exit 0 ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" + exit 1 ;; + + *local*) + # First pass through any local machine types. + echo $1 + exit 0;; + + * ) + break ;; + esac +done + +case $# in + 0) echo "$me: missing argument$help" >&2 + exit 1;; + 1) ;; + *) echo "$me: too many arguments$help" >&2 + exit 1;; +esac + +# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any). +# Here we must recognize all the valid KERNEL-OS combinations. +maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'` +case $maybe_os in + nto-qnx* | linux-gnu* | linux-dietlibc | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | \ + kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | storm-chaos* | os2-emx* | rtmk-nova*) + os=-$maybe_os + basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'` + ;; + *) + basic_machine=`echo $1 | sed 's/-[^-]*$//'` + if [ $basic_machine != $1 ] + then os=`echo $1 | sed 's/.*-/-/'` + else os=; fi + ;; +esac + +### Let's recognize common machines as not being operating systems so +### that things like config.sub decstation-3100 work. We also +### recognize some manufacturers as not being operating systems, so we +### can provide default operating systems below. +case $os in + -sun*os*) + # Prevent following clause from handling this invalid input. + ;; + -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ + -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ + -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ + -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ + -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ + -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ + -apple | -axis) + os= + basic_machine=$1 + ;; + -sim | -cisco | -oki | -wec | -winbond) + os= + basic_machine=$1 + ;; + -scout) + ;; + -wrs) + os=-vxworks + basic_machine=$1 + ;; + -chorusos*) + os=-chorusos + basic_machine=$1 + ;; + -chorusrdb) + os=-chorusrdb + basic_machine=$1 + ;; + -hiux*) + os=-hiuxwe2 + ;; + -sco5) + os=-sco3.2v5 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco4) + os=-sco3.2v4 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco3.2.[4-9]*) + os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco3.2v[4-9]*) + # Don't forget version if it is 3.2v4 or newer. + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco*) + os=-sco3.2v2 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -udk*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -isc) + os=-isc2.2 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -clix*) + basic_machine=clipper-intergraph + ;; + -isc*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -lynx*) + os=-lynxos + ;; + -ptx*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` + ;; + -windowsnt*) + os=`echo $os | sed -e 's/windowsnt/winnt/'` + ;; + -psos*) + os=-psos + ;; + -mint | -mint[0-9]*) + basic_machine=m68k-atari + os=-mint + ;; +esac + +# Decode aliases for certain CPU-COMPANY combinations. +case $basic_machine in + # Recognize the basic CPU types without company name. + # Some are omitted here because they have special meanings below. + 1750a | 580 \ + | a29k \ + | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ + | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ + | am33_2.0 \ + | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr \ + | c4x | clipper \ + | d10v | d30v | dlx | dsp16xx \ + | fr30 | frv \ + | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ + | i370 | i860 | i960 | ia64 \ + | ip2k | iq2000 \ + | m32r | m32rle | m68000 | m68k | m88k | mcore \ + | mips | mipsbe | mipseb | mipsel | mipsle \ + | mips16 \ + | mips64 | mips64el \ + | mips64vr | mips64vrel \ + | mips64orion | mips64orionel \ + | mips64vr4100 | mips64vr4100el \ + | mips64vr4300 | mips64vr4300el \ + | mips64vr5000 | mips64vr5000el \ + | mipsisa32 | mipsisa32el \ + | mipsisa32r2 | mipsisa32r2el \ + | mipsisa64 | mipsisa64el \ + | mipsisa64r2 | mipsisa64r2el \ + | mipsisa64sb1 | mipsisa64sb1el \ + | mipsisa64sr71k | mipsisa64sr71kel \ + | mipstx39 | mipstx39el \ + | mn10200 | mn10300 \ + | msp430 \ + | ns16k | ns32k \ + | openrisc | or32 \ + | pdp10 | pdp11 | pj | pjl \ + | powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \ + | pyramid \ + | sh | sh[1234] | sh[23]e | sh[34]eb | shbe | shle | sh[1234]le | sh3ele \ + | sh64 | sh64le \ + | sparc | sparc64 | sparc86x | sparclet | sparclite | sparcv8 | sparcv9 | sparcv9b \ + | strongarm \ + | tahoe | thumb | tic4x | tic80 | tron \ + | v850 | v850e \ + | we32k \ + | x86 | xscale | xstormy16 | xtensa \ + | z8k) + basic_machine=$basic_machine-unknown + ;; + m6811 | m68hc11 | m6812 | m68hc12) + # Motorola 68HC11/12. + basic_machine=$basic_machine-unknown + os=-none + ;; + m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) + ;; + + # We use `pc' rather than `unknown' + # because (1) that's what they normally are, and + # (2) the word "unknown" tends to confuse beginning users. + i*86 | x86_64) + basic_machine=$basic_machine-pc + ;; + # Object if more than one company name word. + *-*-*) + echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 + exit 1 + ;; + # Recognize the basic CPU types with company name. + 580-* \ + | a29k-* \ + | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ + | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ + | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \ + | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ + | avr-* \ + | bs2000-* \ + | c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \ + | clipper-* | cydra-* \ + | d10v-* | d30v-* | dlx-* \ + | elxsi-* \ + | f30[01]-* | f700-* | fr30-* | frv-* | fx80-* \ + | h8300-* | h8500-* \ + | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ + | i*86-* | i860-* | i960-* | ia64-* \ + | ip2k-* | iq2000-* \ + | m32r-* | m32rle-* \ + | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ + | m88110-* | m88k-* | mcore-* \ + | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ + | mips16-* \ + | mips64-* | mips64el-* \ + | mips64vr-* | mips64vrel-* \ + | mips64orion-* | mips64orionel-* \ + | mips64vr4100-* | mips64vr4100el-* \ + | mips64vr4300-* | mips64vr4300el-* \ + | mips64vr5000-* | mips64vr5000el-* \ + | mipsisa32-* | mipsisa32el-* \ + | mipsisa32r2-* | mipsisa32r2el-* \ + | mipsisa64-* | mipsisa64el-* \ + | mipsisa64r2-* | mipsisa64r2el-* \ + | mipsisa64sb1-* | mipsisa64sb1el-* \ + | mipsisa64sr71k-* | mipsisa64sr71kel-* \ + | mipstx39-* | mipstx39el-* \ + | msp430-* \ + | none-* | np1-* | nv1-* | ns16k-* | ns32k-* \ + | orion-* \ + | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ + | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \ + | pyramid-* \ + | romp-* | rs6000-* \ + | sh-* | sh[1234]-* | sh[23]e-* | sh[34]eb-* | shbe-* \ + | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ + | sparc-* | sparc64-* | sparc86x-* | sparclet-* | sparclite-* \ + | sparcv8-* | sparcv9-* | sparcv9b-* | strongarm-* | sv1-* | sx?-* \ + | tahoe-* | thumb-* \ + | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ + | tron-* \ + | v850-* | v850e-* | vax-* \ + | we32k-* \ + | x86-* | x86_64-* | xps100-* | xscale-* | xstormy16-* \ + | xtensa-* \ + | ymp-* \ + | z8k-*) + ;; + # Recognize the various machine names and aliases which stand + # for a CPU type and a company and sometimes even an OS. + 386bsd) + basic_machine=i386-unknown + os=-bsd + ;; + 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) + basic_machine=m68000-att + ;; + 3b*) + basic_machine=we32k-att + ;; + a29khif) + basic_machine=a29k-amd + os=-udi + ;; + abacus) + basic_machine=abacus-unknown + ;; + adobe68k) + basic_machine=m68010-adobe + os=-scout + ;; + alliant | fx80) + basic_machine=fx80-alliant + ;; + altos | altos3068) + basic_machine=m68k-altos + ;; + am29k) + basic_machine=a29k-none + os=-bsd + ;; + amd64) + basic_machine=x86_64-pc + ;; + amd64-*) + basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + amdahl) + basic_machine=580-amdahl + os=-sysv + ;; + amiga | amiga-*) + basic_machine=m68k-unknown + ;; + amigaos | amigados) + basic_machine=m68k-unknown + os=-amigaos + ;; + amigaunix | amix) + basic_machine=m68k-unknown + os=-sysv4 + ;; + apollo68) + basic_machine=m68k-apollo + os=-sysv + ;; + apollo68bsd) + basic_machine=m68k-apollo + os=-bsd + ;; + aux) + basic_machine=m68k-apple + os=-aux + ;; + balance) + basic_machine=ns32k-sequent + os=-dynix + ;; + c90) + basic_machine=c90-cray + os=-unicos + ;; + convex-c1) + basic_machine=c1-convex + os=-bsd + ;; + convex-c2) + basic_machine=c2-convex + os=-bsd + ;; + convex-c32) + basic_machine=c32-convex + os=-bsd + ;; + convex-c34) + basic_machine=c34-convex + os=-bsd + ;; + convex-c38) + basic_machine=c38-convex + os=-bsd + ;; + cray | j90) + basic_machine=j90-cray + os=-unicos + ;; + cr16c) + basic_machine=cr16c-unknown + os=-elf + ;; + crds | unos) + basic_machine=m68k-crds + ;; + cris | cris-* | etrax*) + basic_machine=cris-axis + ;; + crx) + basic_machine=crx-unknown + os=-elf + ;; + da30 | da30-*) + basic_machine=m68k-da30 + ;; + decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) + basic_machine=mips-dec + ;; + decsystem10* | dec10*) + basic_machine=pdp10-dec + os=-tops10 + ;; + decsystem20* | dec20*) + basic_machine=pdp10-dec + os=-tops20 + ;; + delta | 3300 | motorola-3300 | motorola-delta \ + | 3300-motorola | delta-motorola) + basic_machine=m68k-motorola + ;; + delta88) + basic_machine=m88k-motorola + os=-sysv3 + ;; + dpx20 | dpx20-*) + basic_machine=rs6000-bull + os=-bosx + ;; + dpx2* | dpx2*-bull) + basic_machine=m68k-bull + os=-sysv3 + ;; + ebmon29k) + basic_machine=a29k-amd + os=-ebmon + ;; + elxsi) + basic_machine=elxsi-elxsi + os=-bsd + ;; + encore | umax | mmax) + basic_machine=ns32k-encore + ;; + es1800 | OSE68k | ose68k | ose | OSE) + basic_machine=m68k-ericsson + os=-ose + ;; + fx2800) + basic_machine=i860-alliant + ;; + genix) + basic_machine=ns32k-ns + ;; + gmicro) + basic_machine=tron-gmicro + os=-sysv + ;; + go32) + basic_machine=i386-pc + os=-go32 + ;; + h3050r* | hiux*) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + h8300hms) + basic_machine=h8300-hitachi + os=-hms + ;; + h8300xray) + basic_machine=h8300-hitachi + os=-xray + ;; + h8500hms) + basic_machine=h8500-hitachi + os=-hms + ;; + harris) + basic_machine=m88k-harris + os=-sysv3 + ;; + hp300-*) + basic_machine=m68k-hp + ;; + hp300bsd) + basic_machine=m68k-hp + os=-bsd + ;; + hp300hpux) + basic_machine=m68k-hp + os=-hpux + ;; + hp3k9[0-9][0-9] | hp9[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hp9k2[0-9][0-9] | hp9k31[0-9]) + basic_machine=m68000-hp + ;; + hp9k3[2-9][0-9]) + basic_machine=m68k-hp + ;; + hp9k6[0-9][0-9] | hp6[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hp9k7[0-79][0-9] | hp7[0-79][0-9]) + basic_machine=hppa1.1-hp + ;; + hp9k78[0-9] | hp78[0-9]) + # FIXME: really hppa2.0-hp + basic_machine=hppa1.1-hp + ;; + hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) + # FIXME: really hppa2.0-hp + basic_machine=hppa1.1-hp + ;; + hp9k8[0-9][13679] | hp8[0-9][13679]) + basic_machine=hppa1.1-hp + ;; + hp9k8[0-9][0-9] | hp8[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hppa-next) + os=-nextstep3 + ;; + hppaosf) + basic_machine=hppa1.1-hp + os=-osf + ;; + hppro) + basic_machine=hppa1.1-hp + os=-proelf + ;; + i370-ibm* | ibm*) + basic_machine=i370-ibm + ;; +# I'm not sure what "Sysv32" means. Should this be sysv3.2? + i*86v32) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv32 + ;; + i*86v4*) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv4 + ;; + i*86v) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv + ;; + i*86sol2) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-solaris2 + ;; + i386mach) + basic_machine=i386-mach + os=-mach + ;; + i386-vsta | vsta) + basic_machine=i386-unknown + os=-vsta + ;; + iris | iris4d) + basic_machine=mips-sgi + case $os in + -irix*) + ;; + *) + os=-irix4 + ;; + esac + ;; + isi68 | isi) + basic_machine=m68k-isi + os=-sysv + ;; + m88k-omron*) + basic_machine=m88k-omron + ;; + magnum | m3230) + basic_machine=mips-mips + os=-sysv + ;; + merlin) + basic_machine=ns32k-utek + os=-sysv + ;; + mingw32) + basic_machine=i386-pc + os=-mingw32 + ;; + miniframe) + basic_machine=m68000-convergent + ;; + *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) + basic_machine=m68k-atari + os=-mint + ;; + mips3*-*) + basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` + ;; + mips3*) + basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown + ;; + mmix*) + basic_machine=mmix-knuth + os=-mmixware + ;; + monitor) + basic_machine=m68k-rom68k + os=-coff + ;; + morphos) + basic_machine=powerpc-unknown + os=-morphos + ;; + msdos) + basic_machine=i386-pc + os=-msdos + ;; + mvs) + basic_machine=i370-ibm + os=-mvs + ;; + ncr3000) + basic_machine=i486-ncr + os=-sysv4 + ;; + netbsd386) + basic_machine=i386-unknown + os=-netbsd + ;; + netwinder) + basic_machine=armv4l-rebel + os=-linux + ;; + news | news700 | news800 | news900) + basic_machine=m68k-sony + os=-newsos + ;; + news1000) + basic_machine=m68030-sony + os=-newsos + ;; + news-3600 | risc-news) + basic_machine=mips-sony + os=-newsos + ;; + necv70) + basic_machine=v70-nec + os=-sysv + ;; + next | m*-next ) + basic_machine=m68k-next + case $os in + -nextstep* ) + ;; + -ns2*) + os=-nextstep2 + ;; + *) + os=-nextstep3 + ;; + esac + ;; + nh3000) + basic_machine=m68k-harris + os=-cxux + ;; + nh[45]000) + basic_machine=m88k-harris + os=-cxux + ;; + nindy960) + basic_machine=i960-intel + os=-nindy + ;; + mon960) + basic_machine=i960-intel + os=-mon960 + ;; + nonstopux) + basic_machine=mips-compaq + os=-nonstopux + ;; + np1) + basic_machine=np1-gould + ;; + nv1) + basic_machine=nv1-cray + os=-unicosmp + ;; + nsr-tandem) + basic_machine=nsr-tandem + ;; + op50n-* | op60c-*) + basic_machine=hppa1.1-oki + os=-proelf + ;; + or32 | or32-*) + basic_machine=or32-unknown + os=-coff + ;; + os400) + basic_machine=powerpc-ibm + os=-os400 + ;; + OSE68000 | ose68000) + basic_machine=m68000-ericsson + os=-ose + ;; + os68k) + basic_machine=m68k-none + os=-os68k + ;; + pa-hitachi) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + paragon) + basic_machine=i860-intel + os=-osf + ;; + pbd) + basic_machine=sparc-tti + ;; + pbb) + basic_machine=m68k-tti + ;; + pc532 | pc532-*) + basic_machine=ns32k-pc532 + ;; + pentium | p5 | k5 | k6 | nexgen | viac3) + basic_machine=i586-pc + ;; + pentiumpro | p6 | 6x86 | athlon | athlon_*) + basic_machine=i686-pc + ;; + pentiumii | pentium2 | pentiumiii | pentium3) + basic_machine=i686-pc + ;; + pentium4) + basic_machine=i786-pc + ;; + pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) + basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentiumpro-* | p6-* | 6x86-* | athlon-*) + basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) + basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentium4-*) + basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pn) + basic_machine=pn-gould + ;; + power) basic_machine=power-ibm + ;; + ppc) basic_machine=powerpc-unknown + ;; + ppc-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppcle | powerpclittle | ppc-le | powerpc-little) + basic_machine=powerpcle-unknown + ;; + ppcle-* | powerpclittle-*) + basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppc64) basic_machine=powerpc64-unknown + ;; + ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppc64le | powerpc64little | ppc64-le | powerpc64-little) + basic_machine=powerpc64le-unknown + ;; + ppc64le-* | powerpc64little-*) + basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ps2) + basic_machine=i386-ibm + ;; + pw32) + basic_machine=i586-unknown + os=-pw32 + ;; + rom68k) + basic_machine=m68k-rom68k + os=-coff + ;; + rm[46]00) + basic_machine=mips-siemens + ;; + rtpc | rtpc-*) + basic_machine=romp-ibm + ;; + s390 | s390-*) + basic_machine=s390-ibm + ;; + s390x | s390x-*) + basic_machine=s390x-ibm + ;; + sa29200) + basic_machine=a29k-amd + os=-udi + ;; + sb1) + basic_machine=mipsisa64sb1-unknown + ;; + sb1el) + basic_machine=mipsisa64sb1el-unknown + ;; + sei) + basic_machine=mips-sei + os=-seiux + ;; + sequent) + basic_machine=i386-sequent + ;; + sh) + basic_machine=sh-hitachi + os=-hms + ;; + sh64) + basic_machine=sh64-unknown + ;; + sparclite-wrs | simso-wrs) + basic_machine=sparclite-wrs + os=-vxworks + ;; + sps7) + basic_machine=m68k-bull + os=-sysv2 + ;; + spur) + basic_machine=spur-unknown + ;; + st2000) + basic_machine=m68k-tandem + ;; + stratus) + basic_machine=i860-stratus + os=-sysv4 + ;; + sun2) + basic_machine=m68000-sun + ;; + sun2os3) + basic_machine=m68000-sun + os=-sunos3 + ;; + sun2os4) + basic_machine=m68000-sun + os=-sunos4 + ;; + sun3os3) + basic_machine=m68k-sun + os=-sunos3 + ;; + sun3os4) + basic_machine=m68k-sun + os=-sunos4 + ;; + sun4os3) + basic_machine=sparc-sun + os=-sunos3 + ;; + sun4os4) + basic_machine=sparc-sun + os=-sunos4 + ;; + sun4sol2) + basic_machine=sparc-sun + os=-solaris2 + ;; + sun3 | sun3-*) + basic_machine=m68k-sun + ;; + sun4) + basic_machine=sparc-sun + ;; + sun386 | sun386i | roadrunner) + basic_machine=i386-sun + ;; + sv1) + basic_machine=sv1-cray + os=-unicos + ;; + symmetry) + basic_machine=i386-sequent + os=-dynix + ;; + t3e) + basic_machine=alphaev5-cray + os=-unicos + ;; + t90) + basic_machine=t90-cray + os=-unicos + ;; + tic54x | c54x*) + basic_machine=tic54x-unknown + os=-coff + ;; + tic55x | c55x*) + basic_machine=tic55x-unknown + os=-coff + ;; + tic6x | c6x*) + basic_machine=tic6x-unknown + os=-coff + ;; + tx39) + basic_machine=mipstx39-unknown + ;; + tx39el) + basic_machine=mipstx39el-unknown + ;; + toad1) + basic_machine=pdp10-xkl + os=-tops20 + ;; + tower | tower-32) + basic_machine=m68k-ncr + ;; + tpf) + basic_machine=s390x-ibm + os=-tpf + ;; + udi29k) + basic_machine=a29k-amd + os=-udi + ;; + ultra3) + basic_machine=a29k-nyu + os=-sym1 + ;; + v810 | necv810) + basic_machine=v810-nec + os=-none + ;; + vaxv) + basic_machine=vax-dec + os=-sysv + ;; + vms) + basic_machine=vax-dec + os=-vms + ;; + vpp*|vx|vx-*) + basic_machine=f301-fujitsu + ;; + vxworks960) + basic_machine=i960-wrs + os=-vxworks + ;; + vxworks68) + basic_machine=m68k-wrs + os=-vxworks + ;; + vxworks29k) + basic_machine=a29k-wrs + os=-vxworks + ;; + w65*) + basic_machine=w65-wdc + os=-none + ;; + w89k-*) + basic_machine=hppa1.1-winbond + os=-proelf + ;; + xps | xps100) + basic_machine=xps100-honeywell + ;; + ymp) + basic_machine=ymp-cray + os=-unicos + ;; + z8k-*-coff) + basic_machine=z8k-unknown + os=-sim + ;; + none) + basic_machine=none-none + os=-none + ;; + +# Here we handle the default manufacturer of certain CPU types. It is in +# some cases the only manufacturer, in others, it is the most popular. + w89k) + basic_machine=hppa1.1-winbond + ;; + op50n) + basic_machine=hppa1.1-oki + ;; + op60c) + basic_machine=hppa1.1-oki + ;; + romp) + basic_machine=romp-ibm + ;; + rs6000) + basic_machine=rs6000-ibm + ;; + vax) + basic_machine=vax-dec + ;; + pdp10) + # there are many clones, so DEC is not a safe bet + basic_machine=pdp10-unknown + ;; + pdp11) + basic_machine=pdp11-dec + ;; + we32k) + basic_machine=we32k-att + ;; + sh3 | sh4 | sh[34]eb | sh[1234]le | sh[23]ele) + basic_machine=sh-unknown + ;; + sh64) + basic_machine=sh64-unknown + ;; + sparc | sparcv8 | sparcv9 | sparcv9b) + basic_machine=sparc-sun + ;; + cydra) + basic_machine=cydra-cydrome + ;; + orion) + basic_machine=orion-highlevel + ;; + orion105) + basic_machine=clipper-highlevel + ;; + mac | mpw | mac-mpw) + basic_machine=m68k-apple + ;; + pmac | pmac-mpw) + basic_machine=powerpc-apple + ;; + *-unknown) + # Make sure to match an already-canonicalized machine name. + ;; + *) + echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 + exit 1 + ;; +esac + +# Here we canonicalize certain aliases for manufacturers. +case $basic_machine in + *-digital*) + basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'` + ;; + *-commodore*) + basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'` + ;; + *) + ;; +esac + +# Decode manufacturer-specific aliases for certain operating systems. + +if [ x"$os" != x"" ] +then +case $os in + # First match some system type aliases + # that might get confused with valid system types. + # -solaris* is a basic system type, with this one exception. + -solaris1 | -solaris1.*) + os=`echo $os | sed -e 's|solaris1|sunos4|'` + ;; + -solaris) + os=-solaris2 + ;; + -svr4*) + os=-sysv4 + ;; + -unixware*) + os=-sysv4.2uw + ;; + -gnu/linux*) + os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'` + ;; + # First accept the basic system types. + # The portable systems comes first. + # Each alternative MUST END IN A *, to match a version number. + # -sysv* is not here because it comes later, after sysvr4. + -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \ + | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\ + | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \ + | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \ + | -aos* \ + | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \ + | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \ + | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* | -openbsd* \ + | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \ + | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \ + | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ + | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \ + | -chorusos* | -chorusrdb* \ + | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ + | -mingw32* | -linux-gnu* | -linux-uclibc* | -uxpv* | -beos* | -mpeix* | -udk* \ + | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \ + | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \ + | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \ + | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \ + | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \ + | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly*) + # Remember, each alternative MUST END IN *, to match a version number. + ;; + -qnx*) + case $basic_machine in + x86-* | i*86-*) + ;; + *) + os=-nto$os + ;; + esac + ;; + -nto-qnx*) + ;; + -nto*) + os=`echo $os | sed -e 's|nto|nto-qnx|'` + ;; + -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \ + | -windows* | -osx | -abug | -netware* | -os9* | -beos* \ + | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*) + ;; + -mac*) + os=`echo $os | sed -e 's|mac|macos|'` + ;; + -linux-dietlibc) + os=-linux-dietlibc + ;; + -linux*) + os=`echo $os | sed -e 's|linux|linux-gnu|'` + ;; + -sunos5*) + os=`echo $os | sed -e 's|sunos5|solaris2|'` + ;; + -sunos6*) + os=`echo $os | sed -e 's|sunos6|solaris3|'` + ;; + -opened*) + os=-openedition + ;; + -os400*) + os=-os400 + ;; + -wince*) + os=-wince + ;; + -osfrose*) + os=-osfrose + ;; + -osf*) + os=-osf + ;; + -utek*) + os=-bsd + ;; + -dynix*) + os=-bsd + ;; + -acis*) + os=-aos + ;; + -atheos*) + os=-atheos + ;; + -syllable*) + os=-syllable + ;; + -386bsd) + os=-bsd + ;; + -ctix* | -uts*) + os=-sysv + ;; + -nova*) + os=-rtmk-nova + ;; + -ns2 ) + os=-nextstep2 + ;; + -nsk*) + os=-nsk + ;; + # Preserve the version number of sinix5. + -sinix5.*) + os=`echo $os | sed -e 's|sinix|sysv|'` + ;; + -sinix*) + os=-sysv4 + ;; + -tpf*) + os=-tpf + ;; + -triton*) + os=-sysv3 + ;; + -oss*) + os=-sysv3 + ;; + -svr4) + os=-sysv4 + ;; + -svr3) + os=-sysv3 + ;; + -sysvr4) + os=-sysv4 + ;; + # This must come after -sysvr4. + -sysv*) + ;; + -ose*) + os=-ose + ;; + -es1800*) + os=-ose + ;; + -xenix) + os=-xenix + ;; + -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) + os=-mint + ;; + -aros*) + os=-aros + ;; + -kaos*) + os=-kaos + ;; + -none) + ;; + *) + # Get rid of the `-' at the beginning of $os. + os=`echo $os | sed 's/[^-]*-//'` + echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2 + exit 1 + ;; +esac +else + +# Here we handle the default operating systems that come with various machines. +# The value should be what the vendor currently ships out the door with their +# machine or put another way, the most popular os provided with the machine. + +# Note that if you're going to try to match "-MANUFACTURER" here (say, +# "-sun"), then you have to tell the case statement up towards the top +# that MANUFACTURER isn't an operating system. Otherwise, code above +# will signal an error saying that MANUFACTURER isn't an operating +# system, and we'll never get to this point. + +case $basic_machine in + *-acorn) + os=-riscix1.2 + ;; + arm*-rebel) + os=-linux + ;; + arm*-semi) + os=-aout + ;; + c4x-* | tic4x-*) + os=-coff + ;; + # This must come before the *-dec entry. + pdp10-*) + os=-tops20 + ;; + pdp11-*) + os=-none + ;; + *-dec | vax-*) + os=-ultrix4.2 + ;; + m68*-apollo) + os=-domain + ;; + i386-sun) + os=-sunos4.0.2 + ;; + m68000-sun) + os=-sunos3 + # This also exists in the configure program, but was not the + # default. + # os=-sunos4 + ;; + m68*-cisco) + os=-aout + ;; + mips*-cisco) + os=-elf + ;; + mips*-*) + os=-elf + ;; + or32-*) + os=-coff + ;; + *-tti) # must be before sparc entry or we get the wrong os. + os=-sysv3 + ;; + sparc-* | *-sun) + os=-sunos4.1.1 + ;; + *-be) + os=-beos + ;; + *-ibm) + os=-aix + ;; + *-wec) + os=-proelf + ;; + *-winbond) + os=-proelf + ;; + *-oki) + os=-proelf + ;; + *-hp) + os=-hpux + ;; + *-hitachi) + os=-hiux + ;; + i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent) + os=-sysv + ;; + *-cbm) + os=-amigaos + ;; + *-dg) + os=-dgux + ;; + *-dolphin) + os=-sysv3 + ;; + m68k-ccur) + os=-rtu + ;; + m88k-omron*) + os=-luna + ;; + *-next ) + os=-nextstep + ;; + *-sequent) + os=-ptx + ;; + *-crds) + os=-unos + ;; + *-ns) + os=-genix + ;; + i370-*) + os=-mvs + ;; + *-next) + os=-nextstep3 + ;; + *-gould) + os=-sysv + ;; + *-highlevel) + os=-bsd + ;; + *-encore) + os=-bsd + ;; + *-sgi) + os=-irix + ;; + *-siemens) + os=-sysv4 + ;; + *-masscomp) + os=-rtu + ;; + f30[01]-fujitsu | f700-fujitsu) + os=-uxpv + ;; + *-rom68k) + os=-coff + ;; + *-*bug) + os=-coff + ;; + *-apple) + os=-macos + ;; + *-atari*) + os=-mint + ;; + *) + os=-none + ;; +esac +fi + +# Here we handle the case where we know the os, and the CPU type, but not the +# manufacturer. We pick the logical manufacturer. +vendor=unknown +case $basic_machine in + *-unknown) + case $os in + -riscix*) + vendor=acorn + ;; + -sunos*) + vendor=sun + ;; + -aix*) + vendor=ibm + ;; + -beos*) + vendor=be + ;; + -hpux*) + vendor=hp + ;; + -mpeix*) + vendor=hp + ;; + -hiux*) + vendor=hitachi + ;; + -unos*) + vendor=crds + ;; + -dgux*) + vendor=dg + ;; + -luna*) + vendor=omron + ;; + -genix*) + vendor=ns + ;; + -mvs* | -opened*) + vendor=ibm + ;; + -os400*) + vendor=ibm + ;; + -ptx*) + vendor=sequent + ;; + -tpf*) + vendor=ibm + ;; + -vxsim* | -vxworks* | -windiss*) + vendor=wrs + ;; + -aux*) + vendor=apple + ;; + -hms*) + vendor=hitachi + ;; + -mpw* | -macos*) + vendor=apple + ;; + -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) + vendor=atari + ;; + -vos*) + vendor=stratus + ;; + esac + basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"` + ;; +esac + +echo $basic_machine$os +exit 0 + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/config/depcomp b/config/depcomp new file mode 100644 index 0000000..368e3be --- /dev/null +++ b/config/depcomp @@ -0,0 +1,436 @@ +#! /bin/sh + +# depcomp - compile a program generating dependencies as side-effects +# Copyright 1999, 2000 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Originally written by Alexandre Oliva . + +if test -z "$depmode" || test -z "$source" || test -z "$object"; then + echo "depcomp: Variables source, object and depmode must be set" 1>&2 + exit 1 +fi +# `libtool' can also be set to `yes' or `no'. + +if test -z "$depfile"; then + base=`echo "$object" | sed -e 's,^.*/,,' -e 's,\.\([^.]*\)$,.P\1,'` + dir=`echo "$object" | sed 's,/.*$,/,'` + if test "$dir" = "$object"; then + dir= + fi + # FIXME: should be _deps on DOS. + depfile="$dir.deps/$base" +fi + +tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} + +rm -f "$tmpdepfile" + +# Some modes work just like other modes, but use different flags. We +# parameterize here, but still list the modes in the big case below, +# to make depend.m4 easier to write. Note that we *cannot* use a case +# here, because this file can only contain one case statement. +if test "$depmode" = hp; then + # HP compiler uses -M and no extra arg. + gccflag=-M + depmode=gcc +fi + +if test "$depmode" = dashXmstdout; then + # This is just like dashmstdout with a different argument. + dashmflag=-xM + depmode=dashmstdout +fi + +case "$depmode" in +gcc3) +## gcc 3 implements dependency tracking that does exactly what +## we want. Yay! Note: for some reason libtool 1.4 doesn't like +## it if -MD -MP comes after the -MF stuff. Hmm. + "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile" + exit $stat + fi + mv "$tmpdepfile" "$depfile" + ;; + +gcc) +## There are various ways to get dependency output from gcc. Here's +## why we pick this rather obscure method: +## - Don't want to use -MD because we'd like the dependencies to end +## up in a subdir. Having to rename by hand is ugly. +## (We might end up doing this anyway to support other compilers.) +## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like +## -MM, not -M (despite what the docs say). +## - Using -M directly means running the compiler twice (even worse +## than renaming). + if test -z "$gccflag"; then + gccflag=-MD, + fi + "$@" -Wp,"$gccflag$tmpdepfile" + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz +## The second -e expression handles DOS-style file names with drive letters. + sed -e 's/^[^:]*: / /' \ + -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" +## This next piece of magic avoids the `deleted header file' problem. +## The problem is that when a header file which appears in a .P file +## is deleted, the dependency causes make to die (because there is +## typically no way to rebuild the header). We avoid this by adding +## dummy dependencies for each header file. Too bad gcc doesn't do +## this for us directly. + tr ' ' ' +' < "$tmpdepfile" | +## Some versions of gcc put a space before the `:'. On the theory +## that the space means something, we add a space to the output as +## well. +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +sgi) + if test "$libtool" = yes; then + "$@" "-Wp,-MDupdate,$tmpdepfile" + else + "$@" -MDupdate "$tmpdepfile" + fi + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + + if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files + echo "$object : \\" > "$depfile" + + # Clip off the initial element (the dependent). Don't try to be + # clever and replace this with sed code, as IRIX sed won't handle + # lines with more than a fixed number of characters (4096 in + # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; + # the IRIX cc adds comments like `#:fec' to the end of the + # dependency line. + tr ' ' ' +' < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \ + tr ' +' ' ' >> $depfile + echo >> $depfile + + # The second pass generates a dummy entry for each header file. + tr ' ' ' +' < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ + >> $depfile + else + # The sourcefile does not contain any dependencies, so just + # store a dummy comment line, to avoid errors with the Makefile + # "include basename.Plo" scheme. + echo "#dummy" > "$depfile" + fi + rm -f "$tmpdepfile" + ;; + +aix) + # The C for AIX Compiler uses -M and outputs the dependencies + # in a .u file. This file always lives in the current directory. + # Also, the AIX compiler puts `$object:' at the start of each line; + # $object doesn't have directory information. + stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'` + tmpdepfile="$stripped.u" + outname="$stripped.o" + if test "$libtool" = yes; then + "$@" -Wc,-M + else + "$@" -M + fi + + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile" + exit $stat + fi + + if test -f "$tmpdepfile"; then + # Each line is of the form `foo.o: dependent.h'. + # Do two passes, one to just change these to + # `$object: dependent.h' and one to simply `dependent.h:'. + sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile" + sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile" + else + # The sourcefile does not contain any dependencies, so just + # store a dummy comment line, to avoid errors with the Makefile + # "include basename.Plo" scheme. + echo "#dummy" > "$depfile" + fi + rm -f "$tmpdepfile" + ;; + +tru64) + # The Tru64 AIX compiler uses -MD to generate dependencies as a side + # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. + # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put + # dependencies in `foo.d' instead, so we check for that too. + # Subdirectories are respected. + + base=`echo "$object" | sed -e 's/\.o$/.d/' -e 's/\.lo$/.d/'` + tmpdepfile1="$base.o.d" + tmpdepfile2="$base.d" + if test "$libtool" = yes; then + "$@" -Wc,-MD + else + "$@" -MD + fi + + stat=$? + if test $stat -eq 0; then : + else + rm -f "$tmpdepfile1" "$tmpdepfile2" + exit $stat + fi + + if test -f "$tmpdepfile1"; then + tmpdepfile="$tmpdepfile1" + else + tmpdepfile="$tmpdepfile2" + fi + if test -f "$tmpdepfile"; then + sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" + # That's a space and a tab in the []. + sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" + else + echo "#dummy" > "$depfile" + fi + rm -f "$tmpdepfile" + ;; + +#nosideeffect) + # This comment above is used by automake to tell side-effect + # dependency tracking mechanisms from slower ones. + +dashmstdout) + # Important note: in order to support this mode, a compiler *must* + # always write the proprocessed file to stdout, regardless of -o, + # because we must use -o when running libtool. + test -z "$dashmflag" && dashmflag=-M + ( IFS=" " + case " $* " in + *" --mode=compile "*) # this is libtool, let us make it quiet + for arg + do # cycle over the arguments + case "$arg" in + "--mode=compile") + # insert --quiet before "--mode=compile" + set fnord "$@" --quiet + shift # fnord + ;; + esac + set fnord "$@" "$arg" + shift # fnord + shift # "$arg" + done + ;; + esac + "$@" $dashmflag | sed 's:^[^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" + ) & + proc=$! + "$@" + stat=$? + wait "$proc" + if test "$stat" != 0; then exit $stat; fi + rm -f "$depfile" + cat < "$tmpdepfile" > "$depfile" + tr ' ' ' +' < "$tmpdepfile" | \ +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +dashXmstdout) + # This case only exists to satisfy depend.m4. It is never actually + # run, as this mode is specially recognized in the preamble. + exit 1 + ;; + +makedepend) + # X makedepend + ( + shift + cleared=no + for arg in "$@"; do + case $cleared in no) + set ""; shift + cleared=yes + esac + case "$arg" in + -D*|-I*) + set fnord "$@" "$arg"; shift;; + -*) + ;; + *) + set fnord "$@" "$arg"; shift;; + esac + done + obj_suffix="`echo $object | sed 's/^.*\././'`" + touch "$tmpdepfile" + ${MAKEDEPEND-makedepend} 2>/dev/null -o"$obj_suffix" -f"$tmpdepfile" "$@" + ) & + proc=$! + "$@" + stat=$? + wait "$proc" + if test "$stat" != 0; then exit $stat; fi + rm -f "$depfile" + cat < "$tmpdepfile" > "$depfile" + sed '1,2d' "$tmpdepfile" | tr ' ' ' +' | \ +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" "$tmpdepfile".bak + ;; + +cpp) + # Important note: in order to support this mode, a compiler *must* + # always write the proprocessed file to stdout, regardless of -o, + # because we must use -o when running libtool. + ( IFS=" " + case " $* " in + *" --mode=compile "*) + for arg + do # cycle over the arguments + case $arg in + "--mode=compile") + # insert --quiet before "--mode=compile" + set fnord "$@" --quiet + shift # fnord + ;; + esac + set fnord "$@" "$arg" + shift # fnord + shift # "$arg" + done + ;; + esac + "$@" -E | + sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' | + sed '$ s: \\$::' > "$tmpdepfile" + ) & + proc=$! + "$@" + stat=$? + wait "$proc" + if test "$stat" != 0; then exit $stat; fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + cat < "$tmpdepfile" >> "$depfile" + sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvisualcpp) + # Important note: in order to support this mode, a compiler *must* + # always write the proprocessed file to stdout, regardless of -o, + # because we must use -o when running libtool. + ( IFS=" " + case " $* " in + *" --mode=compile "*) + for arg + do # cycle over the arguments + case $arg in + "--mode=compile") + # insert --quiet before "--mode=compile" + set fnord "$@" --quiet + shift # fnord + ;; + esac + set fnord "$@" "$arg" + shift # fnord + shift # "$arg" + done + ;; + esac + for arg + do + case "$arg" in + "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") + set fnord "$@" + shift + shift + ;; + *) + set fnord "$@" "$arg" + shift + shift + ;; + esac + done + "$@" -E | + sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile" + ) & + proc=$! + "$@" + stat=$? + wait "$proc" + if test "$stat" != 0; then exit $stat; fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" + echo " " >> "$depfile" + . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +none) + exec "$@" + ;; + +*) + echo "Unknown depmode $depmode" 1>&2 + exit 1 + ;; +esac + +exit 0 diff --git a/config/elfutils.spec.in b/config/elfutils.spec.in new file mode 100644 index 0000000..85681f5 --- /dev/null +++ b/config/elfutils.spec.in @@ -0,0 +1,385 @@ +# -*- rpm-spec-*- +%define fake 0 +Summary: A collection of utilities and DSOs to handle compiled objects. +Name: elfutils +Version: @PACKAGE_VERSION@ +Release: 1 +%if %{fake} +License: GPL +%else +License: OSL +%endif +Group: Development/Tools +#URL: file://home/devel/drepper/ +Source: elfutils-%{version}.tar.gz +Obsoletes: libelf libelf-devel +Requires: elfutils-libelf = %{version}-%{release} +%if %{fake} +Requires: binutils >= 2.14.90.0.4-26.2 +%endif +Requires: glibc >= 2.3.1-2 + +# ExcludeArch: xxx + +BuildRoot: %{_tmppath}/%{name}-root +BuildRequires: gcc >= 3.4 +BuildRequires: bison >= 1.875 +BuildRequires: flex >= 2.5.4a +BuildRequires: bzip2 + +%define _gnu %{nil} +%define _programprefix eu- + +%description +Elfutils is a collection of utilities, including ld (a linker), +nm (for listing symbols from object files), size (for listing the +section sizes of an object or archive file), strip (for discarding +symbols), readelf (to see the raw ELF file structures), and elflint +(to check for well-formed ELF files). Also included are numerous +helper libraries which implement DWARF, ELF, and machine-specific ELF +handling. + +%package devel +Summary: Development libraries to handle compiled objects. +Group: Development/Tools +%if %{fake} +License: GPL +%else +License: OSL +%endif +Requires: elfutils = %{version}-%{release} +Requires: elfutils-libelf-devel = %{version}-%{release} + +%description devel +The elfutils-devel package contains the libraries to create +applications for handling compiled objects. libebl provides some +higher-level ELF access functionality. libdw provides access to +the DWARF debugging information. libasm provides a programmable +assembler interface. + +%package libelf +Summary: Library to read and write ELF files. +Group: Development/Tools +%if %{fake} +License: GPL +%endif + +%description libelf +The elfutils-libelf package provides a DSO which allows reading and +writing ELF files on a high level. Third party programs depend on +this package to read internals of ELF files. The programs of the +elfutils package use it also to generate new ELF files. + +%package libelf-devel +Summary: Development support for libelf +Group: Development/Tools +Requires: elfutils-libelf = %{version}-%{release} +Conflicts: libelf-devel +%if %{fake} +License: GPL +%endif + +%description libelf-devel +The elfutils-libelf-devel package contains the libraries to create +applications for handling compiled objects. libelf allows you to +access the internals of the ELF object file format, so you can see the +different sections of an ELF file. + +%prep +%setup -q + +%build +%configure --program-prefix=%{_programprefix} +make + +%install +rm -rf ${RPM_BUILD_ROOT} +mkdir -p ${RPM_BUILD_ROOT}%{_prefix} + +%makeinstall + +chmod +x ${RPM_BUILD_ROOT}%{_prefix}/%{_lib}/lib*.so* +%if !%{fake} +chmod +x ${RPM_BUILD_ROOT}%{_prefix}/%{_lib}/elfutils/lib*.so* +%endif + +%if !%{fake} +# XXX Nuke unpackaged files +{ cd ${RPM_BUILD_ROOT} + rm -f .%{_bindir}/eu-ld + rm -f .%{_includedir}/elfutils/libasm.h + rm -f .%{_libdir}/libasm-%{version}.so + rm -f .%{_libdir}/libasm.so.* + rm -f .%{_libdir}/libasm.so + rm -f .%{_libdir}/libasm.a +} +%endif + +%check +make check + +%clean +rm -rf ${RPM_BUILD_ROOT} + +%post -p /sbin/ldconfig + +%postun -p /sbin/ldconfig + +%post libelf -p /sbin/ldconfig + +%postun libelf -p /sbin/ldconfig + +%files +%defattr(-,root,root) +%doc README TODO +%if %{fake} +%doc fake-src/FULL +%endif +%{_bindir}/eu-elflint +%{_bindir}/eu-nm +%{_bindir}/eu-readelf +%{_bindir}/eu-size +%{_bindir}/eu-strip +%{_bindir}/eu-findtextrel +%{_bindir}/eu-addr2line +%{_bindir}/eu-elfcmp +%if !%{fake} +#%{_bindir}/eu-ld +#%{_libdir}/libasm-%{version}.so +%{_libdir}/libdw-%{version}.so +%{_libdir}/libdwfl-%{version}.so +#%{_libdir}/libasm.so.* +%{_libdir}/libdw.so.* +%{_libdir}/libdwfl.so.* +%dir %{_libdir}/elfutils +%{_libdir}/elfutils/lib*.so +%endif + +%files devel +%defattr(-,root,root) +%{_includedir}/dwarf.h +%dir %{_includedir}/elfutils +%{_includedir}/elfutils/elf-knowledge.h +%if !%{fake} +%{_includedir}/elfutils/libebl.h +%{_includedir}/elfutils/libdw.h +%{_includedir}/elfutils/libdwfl.h +#%{_libdir}/libasm.a +%{_libdir}/libebl.a +%{_libdir}/libdw.a +%{_libdir}/libdwfl.a +#%{_libdir}/libasm.so +%{_libdir}/libdw.so +%{_libdir}/libdwfl.so +%endif + +%files libelf +%defattr(-,root,root) +%{_libdir}/libelf-%{version}.so +%{_libdir}/libelf.so.* + +%files libelf-devel +%defattr(-,root,root) +%{_includedir}/libelf.h +%{_includedir}/gelf.h +%{_includedir}/nlist.h +%{_libdir}/libelf.a +%{_libdir}/libelf.so + +%changelog +* Sun Jul 24 2005 Ulrich Drepper <@redhat.com> 0.110-1 +- libelf: fix a numbe rof problems with elf_update +- elfcmp: fix a few bugs. Compare gaps. +- Fix a few PLT problems and mudflap build issues. +- libebl: Don't expose Ebl structure definition in libebl.h. It's now p +rivate. + +* Thu Jul 21 2005 Ulrich Drepper <@redhat.com> 0.109-1 +- libebl: Check for matching modules. +- elflint: Check that copy relocations only happen for OBJECT or NOTYPE +symbols. +- elfcmp: New program. +- libdwfl: New library. + +* Mon May 9 2005 Ulrich Drepper <@redhat.com> 0.108-1 +- strip: fix bug introduced in last change +- libdw: records returned by dwarf_getsrclines are now sorted by address + +* Sun May 8 2005 Ulrich Drepper <@redhat.com> 0.108-1 +- strip: fix bug introduced in last change + +* Sun May 8 2005 Ulrich Drepper <@redhat.com> 0.107-1 +- readelf: improve DWARF output format +- strip: support Linux kernel modules + +* Fri Apr 29 2005 Ulrich Drepper 0.107-1 +- readelf: improve DWARF output format + +* Mon Apr 4 2005 Ulrich Drepper 0.106-1 +- libdw: Updated dwarf.h from DWARF3 speclibdw: add new funtions dwarf_f +unc_entrypc, dwarf_func_file, dwarf_func_line,dwarf_func_col, dwarf_ge +tsrc_file + +* Fri Apr 1 2005 Ulrich Drepper 0.105-1 +- addr2line: New program +- libdw: add new functions: dwarf_addrdie, dwarf_macro_*, dwarf_getfuncs +,dwarf_func_*. +- findtextrel: use dwarf_addrdie + +* Mon Mar 28 2005 Ulrich Drepper 0.104-1 +- findtextrel: New program. + +* Mon Mar 21 2005 Ulrich Drepper 0.103-1 +- libdw: Fix using libdw.h with gcc < 4 and C++ code. Compiler bug. + +* Tue Feb 22 2005 Ulrich Drepper 0.102-1 +- More Makefile and spec file cleanups. + +* Fri Jan 16 2004 Jakub Jelinek 0.94-1 +- upgrade to 0.94 + +* Fri Jan 16 2004 Jakub Jelinek 0.93-1 +- upgrade to 0.93 + +* Thu Jan 8 2004 Jakub Jelinek 0.92-1 +- full version +- macroized spec file for GPL or OSL builds +- include only libelf under GPL plus wrapper scripts + +* Wed Jan 7 2004 Jakub Jelinek 0.91-2 +- macroized spec file for GPL or OSL builds + +* Wed Jan 7 2004 Ulrich Drepper +- split elfutils-devel into two packages. + +* Wed Jan 7 2004 Jakub Jelinek 0.91-1 +- include only libelf under GPL plus wrapper scripts + +* Tue Dec 23 2003 Jeff Johnson 0.89-3 +- readelf, not readline, in %%description (#111214). + +* Fri Sep 26 2003 Bill Nottingham 0.89-1 +- update to 0.89 (fix eu-strip) + +* Tue Sep 23 2003 Jakub Jelinek 0.86-3 +- update to 0.86 (fix eu-strip on s390x/alpha) +- libebl is an archive now; remove references to DSO + +* Mon Jul 14 2003 Jeff Johnson 0.84-3 +- upgrade to 0.84 (readelf/elflint improvements, rawhide bugs fixed). + +* Fri Jul 11 2003 Jeff Johnson 0.83-3 +- upgrade to 0.83 (fix invalid ELf handle on *.so strip, more). + +* Wed Jul 9 2003 Jeff Johnson 0.82-3 +- upgrade to 0.82 (strip tests fixed on big-endian). + +* Tue Jul 8 2003 Jeff Johnson 0.81-3 +- upgrade to 0.81 (strip excludes unused symtable entries, test borked). + +* Thu Jun 26 2003 Jeff Johnson 0.80-3 +- upgrade to 0.80 (debugedit changes for kernel in progress). + +* Wed Jun 04 2003 Elliot Lee +- rebuilt + +* Wed May 21 2003 Jeff Johnson 0.79-2 +- upgrade to 0.79 (correct formats for size_t, more of libdw "works"). + +* Mon May 19 2003 Jeff Johnson 0.78-2 +- upgrade to 0.78 (libdwarf bugfix, libdw additions). + +* Mon Feb 24 2003 Elliot Lee +- debuginfo rebuild + +* Thu Feb 20 2003 Jeff Johnson 0.76-2 +- use the correct way of identifying the section via the sh_info link. + +* Sat Feb 15 2003 Jakub Jelinek 0.75-2 +- update to 0.75 (eu-strip -g fix) + +* Tue Feb 11 2003 Jakub Jelinek 0.74-2 +- update to 0.74 (fix for writing with some non-dirty sections) + +* Thu Feb 6 2003 Jeff Johnson 0.73-3 +- another -0.73 update (with sparc fixes). +- do "make check" in %%check, not %%install, section. + +* Mon Jan 27 2003 Jeff Johnson 0.73-2 +- update to 0.73 (with s390 fixes). + +* Wed Jan 22 2003 Tim Powers +- rebuilt + +* Wed Jan 22 2003 Jakub Jelinek 0.72-4 +- fix arguments to gelf_getsymshndx and elf_getshstrndx +- fix other warnings +- reenable checks on s390x + +* Sat Jan 11 2003 Karsten Hopp 0.72-3 +- temporarily disable checks on s390x, until someone has + time to look at it + +* Thu Dec 12 2002 Jakub Jelinek 0.72-2 +- update to 0.72 + +* Wed Dec 11 2002 Jakub Jelinek 0.71-2 +- update to 0.71 + +* Wed Dec 11 2002 Jeff Johnson 0.69-4 +- update to 0.69. +- add "make check" and segfault avoidance patch. +- elfutils-libelf needs to run ldconfig. + +* Tue Dec 10 2002 Jeff Johnson 0.68-2 +- update to 0.68. + +* Fri Dec 6 2002 Jeff Johnson 0.67-2 +- update to 0.67. + +* Tue Dec 3 2002 Jeff Johnson 0.65-2 +- update to 0.65. + +* Mon Dec 2 2002 Jeff Johnson 0.64-2 +- update to 0.64. + +* Sun Dec 1 2002 Ulrich Drepper 0.64 +- split packages further into elfutils-libelf + +* Sat Nov 30 2002 Jeff Johnson 0.63-2 +- update to 0.63. + +* Fri Nov 29 2002 Ulrich Drepper 0.62 +- Adjust for dropping libtool + +* Sun Nov 24 2002 Jeff Johnson 0.59-2 +- update to 0.59 + +* Thu Nov 14 2002 Jeff Johnson 0.56-2 +- update to 0.56 + +* Thu Nov 7 2002 Jeff Johnson 0.54-2 +- update to 0.54 + +* Sun Oct 27 2002 Jeff Johnson 0.53-2 +- update to 0.53 +- drop x86_64 hack, ICE fixed in gcc-3.2-11. + +* Sat Oct 26 2002 Jeff Johnson 0.52-3 +- get beehive to punch a rhpkg generated package. + +* Wed Oct 23 2002 Jeff Johnson 0.52-2 +- build in 8.0.1. +- x86_64: avoid gcc-3.2 ICE on x86_64 for now. + +* Tue Oct 22 2002 Ulrich Drepper 0.52 +- Add libelf-devel to conflicts for elfutils-devel + +* Mon Oct 21 2002 Ulrich Drepper 0.50 +- Split into runtime and devel package + +* Fri Oct 18 2002 Ulrich Drepper 0.49 +- integrate into official sources + +* Wed Oct 16 2002 Jeff Johnson 0.46-1 +- Swaddle. diff --git a/config/install-sh b/config/install-sh new file mode 100644 index 0000000..398a88e --- /dev/null +++ b/config/install-sh @@ -0,0 +1,251 @@ +#!/bin/sh +# +# install - install a program, script, or datafile +# This comes from X11R5 (mit/util/scripts/install.sh). +# +# Copyright 1991 by the Massachusetts Institute of Technology +# +# Permission to use, copy, modify, distribute, and sell this software and its +# documentation for any purpose is hereby granted without fee, provided that +# the above copyright notice appear in all copies and that both that +# copyright notice and this permission notice appear in supporting +# documentation, and that the name of M.I.T. not be used in advertising or +# publicity pertaining to distribution of the software without specific, +# written prior permission. M.I.T. makes no representations about the +# suitability of this software for any purpose. It is provided "as is" +# without express or implied warranty. +# +# Calling this script install-sh is preferred over install.sh, to prevent +# `make' implicit rules from creating a file called install from it +# when there is no Makefile. +# +# This script is compatible with the BSD install script, but was written +# from scratch. It can only install one file at a time, a restriction +# shared with many OS's install programs. + + +# set DOITPROG to echo to test this script + +# Don't use :- since 4.3BSD and earlier shells don't like it. +doit="${DOITPROG-}" + + +# put in absolute paths if you don't have them in your path; or use env. vars. + +mvprog="${MVPROG-mv}" +cpprog="${CPPROG-cp}" +chmodprog="${CHMODPROG-chmod}" +chownprog="${CHOWNPROG-chown}" +chgrpprog="${CHGRPPROG-chgrp}" +stripprog="${STRIPPROG-strip}" +rmprog="${RMPROG-rm}" +mkdirprog="${MKDIRPROG-mkdir}" + +transformbasename="" +transform_arg="" +instcmd="$mvprog" +chmodcmd="$chmodprog 0755" +chowncmd="" +chgrpcmd="" +stripcmd="" +rmcmd="$rmprog -f" +mvcmd="$mvprog" +src="" +dst="" +dir_arg="" + +while [ x"$1" != x ]; do + case $1 in + -c) instcmd="$cpprog" + shift + continue;; + + -d) dir_arg=true + shift + continue;; + + -m) chmodcmd="$chmodprog $2" + shift + shift + continue;; + + -o) chowncmd="$chownprog $2" + shift + shift + continue;; + + -g) chgrpcmd="$chgrpprog $2" + shift + shift + continue;; + + -s) stripcmd="$stripprog" + shift + continue;; + + -t=*) transformarg=`echo $1 | sed 's/-t=//'` + shift + continue;; + + -b=*) transformbasename=`echo $1 | sed 's/-b=//'` + shift + continue;; + + *) if [ x"$src" = x ] + then + src=$1 + else + # this colon is to work around a 386BSD /bin/sh bug + : + dst=$1 + fi + shift + continue;; + esac +done + +if [ x"$src" = x ] +then + echo "install: no input file specified" + exit 1 +else + : +fi + +if [ x"$dir_arg" != x ]; then + dst=$src + src="" + + if [ -d $dst ]; then + instcmd=: + chmodcmd="" + else + instcmd=$mkdirprog + fi +else + +# Waiting for this to be detected by the "$instcmd $src $dsttmp" command +# might cause directories to be created, which would be especially bad +# if $src (and thus $dsttmp) contains '*'. + + if [ -f $src -o -d $src ] + then + : + else + echo "install: $src does not exist" + exit 1 + fi + + if [ x"$dst" = x ] + then + echo "install: no destination specified" + exit 1 + else + : + fi + +# If destination is a directory, append the input filename; if your system +# does not like double slashes in filenames, you may need to add some logic + + if [ -d $dst ] + then + dst="$dst"/`basename $src` + else + : + fi +fi + +## this sed command emulates the dirname command +dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` + +# Make sure that the destination directory exists. +# this part is taken from Noah Friedman's mkinstalldirs script + +# Skip lots of stat calls in the usual case. +if [ ! -d "$dstdir" ]; then +defaultIFS=' + ' +IFS="${IFS-${defaultIFS}}" + +oIFS="${IFS}" +# Some sh's can't handle IFS=/ for some reason. +IFS='%' +set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` +IFS="${oIFS}" + +pathcomp='' + +while [ $# -ne 0 ] ; do + pathcomp="${pathcomp}${1}" + shift + + if [ ! -d "${pathcomp}" ] ; + then + $mkdirprog "${pathcomp}" + else + : + fi + + pathcomp="${pathcomp}/" +done +fi + +if [ x"$dir_arg" != x ] +then + $doit $instcmd $dst && + + if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else : ; fi && + if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else : ; fi && + if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else : ; fi && + if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else : ; fi +else + +# If we're going to rename the final executable, determine the name now. + + if [ x"$transformarg" = x ] + then + dstfile=`basename $dst` + else + dstfile=`basename $dst $transformbasename | + sed $transformarg`$transformbasename + fi + +# don't allow the sed command to completely eliminate the filename + + if [ x"$dstfile" = x ] + then + dstfile=`basename $dst` + else + : + fi + +# Make a temp file name in the proper directory. + + dsttmp=$dstdir/#inst.$$# + +# Move or copy the file name to the temp name + + $doit $instcmd $src $dsttmp && + + trap "rm -f ${dsttmp}" 0 && + +# and set any options; do chmod last to preserve setuid bits + +# If any of these fail, we abort the whole thing. If we want to +# ignore errors from any of these, just make sure not to ignore +# errors from the above "$doit $instcmd $src $dsttmp" command. + + if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else :;fi && + if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else :;fi && + if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else :;fi && + if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else :;fi && + +# Now rename the file to the real destination. + + $doit $rmcmd -f $dstdir/$dstfile && + $doit $mvcmd $dsttmp $dstdir/$dstfile + +fi && + + +exit 0 diff --git a/config/missing b/config/missing new file mode 100644 index 0000000..dd58370 --- /dev/null +++ b/config/missing @@ -0,0 +1,336 @@ +#! /bin/sh +# Common stub for a few missing GNU programs while installing. +# Copyright 1996, 1997, 1999, 2000 Free Software Foundation, Inc. +# Originally by Fran,cois Pinard , 1996. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +if test $# -eq 0; then + echo 1>&2 "Try \`$0 --help' for more information" + exit 1 +fi + +run=: + +# In the cases where this matters, `missing' is being run in the +# srcdir already. +if test -f configure.ac; then + configure_ac=configure.ac +else + configure_ac=configure.in +fi + +case "$1" in +--run) + # Try to run requested program, and just exit if it succeeds. + run= + shift + "$@" && exit 0 + ;; +esac + +# If it does not exist, or fails to run (possibly an outdated version), +# try to emulate it. +case "$1" in + + -h|--h|--he|--hel|--help) + echo "\ +$0 [OPTION]... PROGRAM [ARGUMENT]... + +Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an +error status if there is no known handling for PROGRAM. + +Options: + -h, --help display this help and exit + -v, --version output version information and exit + --run try to run the given command, and emulate it if it fails + +Supported PROGRAM values: + aclocal touch file \`aclocal.m4' + autoconf touch file \`configure' + autoheader touch file \`config.h.in' + automake touch all \`Makefile.in' files + bison create \`y.tab.[ch]', if possible, from existing .[ch] + flex create \`lex.yy.c', if possible, from existing .c + help2man touch the output file + lex create \`lex.yy.c', if possible, from existing .c + makeinfo touch the output file + tar try tar, gnutar, gtar, then tar without non-portable flags + yacc create \`y.tab.[ch]', if possible, from existing .[ch]" + ;; + + -v|--v|--ve|--ver|--vers|--versi|--versio|--version) + echo "missing 0.4 - GNU automake" + ;; + + -*) + echo 1>&2 "$0: Unknown \`$1' option" + echo 1>&2 "Try \`$0 --help' for more information" + exit 1 + ;; + + aclocal*) + if test -z "$run" && ($1 --version) > /dev/null 2>&1; then + # We have it, but it failed. + exit 1 + fi + + echo 1>&2 "\ +WARNING: \`$1' is missing on your system. You should only need it if + you modified \`acinclude.m4' or \`${configure_ac}'. You might want + to install the \`Automake' and \`Perl' packages. Grab them from + any GNU archive site." + touch aclocal.m4 + ;; + + autoconf) + if test -z "$run" && ($1 --version) > /dev/null 2>&1; then + # We have it, but it failed. + exit 1 + fi + + echo 1>&2 "\ +WARNING: \`$1' is missing on your system. You should only need it if + you modified \`${configure_ac}'. You might want to install the + \`Autoconf' and \`GNU m4' packages. Grab them from any GNU + archive site." + touch configure + ;; + + autoheader) + if test -z "$run" && ($1 --version) > /dev/null 2>&1; then + # We have it, but it failed. + exit 1 + fi + + echo 1>&2 "\ +WARNING: \`$1' is missing on your system. You should only need it if + you modified \`acconfig.h' or \`${configure_ac}'. You might want + to install the \`Autoconf' and \`GNU m4' packages. Grab them + from any GNU archive site." + files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}` + test -z "$files" && files="config.h" + touch_files= + for f in $files; do + case "$f" in + *:*) touch_files="$touch_files "`echo "$f" | + sed -e 's/^[^:]*://' -e 's/:.*//'`;; + *) touch_files="$touch_files $f.in";; + esac + done + touch $touch_files + ;; + + automake*) + if test -z "$run" && ($1 --version) > /dev/null 2>&1; then + # We have it, but it failed. + exit 1 + fi + + echo 1>&2 "\ +WARNING: \`$1' is missing on your system. You should only need it if + you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'. + You might want to install the \`Automake' and \`Perl' packages. + Grab them from any GNU archive site." + find . -type f -name Makefile.am -print | + sed 's/\.am$/.in/' | + while read f; do touch "$f"; done + ;; + + autom4te) + if test -z "$run" && ($1 --version) > /dev/null 2>&1; then + # We have it, but it failed. + exit 1 + fi + + echo 1>&2 "\ +WARNING: \`$1' is needed, and you do not seem to have it handy on your + system. You might have modified some files without having the + proper tools for further handling them. + You can get \`$1Help2man' as part of \`Autoconf' from any GNU + archive site." + + file=`echo "$*" | sed -n 's/.*--output[ =]*\([^ ]*\).*/\1/p'` + test -z "$file" && file=`echo "$*" | sed -n 's/.*-o[ ]*\([^ ]*\).*/\1/p'` + if test -f "$file"; then + touch $file + else + test -z "$file" || exec >$file + echo "#! /bin/sh" + echo "# Created by GNU Automake missing as a replacement of" + echo "# $ $@" + echo "exit 0" + chmod +x $file + exit 1 + fi + ;; + + bison|yacc) + echo 1>&2 "\ +WARNING: \`$1' is missing on your system. You should only need it if + you modified a \`.y' file. You may need the \`Bison' package + in order for those modifications to take effect. You can get + \`Bison' from any GNU archive site." + rm -f y.tab.c y.tab.h + if [ $# -ne 1 ]; then + eval LASTARG="\${$#}" + case "$LASTARG" in + *.y) + SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'` + if [ -f "$SRCFILE" ]; then + cp "$SRCFILE" y.tab.c + fi + SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'` + if [ -f "$SRCFILE" ]; then + cp "$SRCFILE" y.tab.h + fi + ;; + esac + fi + if [ ! -f y.tab.h ]; then + echo >y.tab.h + fi + if [ ! -f y.tab.c ]; then + echo 'main() { return 0; }' >y.tab.c + fi + ;; + + lex|flex) + echo 1>&2 "\ +WARNING: \`$1' is missing on your system. You should only need it if + you modified a \`.l' file. You may need the \`Flex' package + in order for those modifications to take effect. You can get + \`Flex' from any GNU archive site." + rm -f lex.yy.c + if [ $# -ne 1 ]; then + eval LASTARG="\${$#}" + case "$LASTARG" in + *.l) + SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'` + if [ -f "$SRCFILE" ]; then + cp "$SRCFILE" lex.yy.c + fi + ;; + esac + fi + if [ ! -f lex.yy.c ]; then + echo 'main() { return 0; }' >lex.yy.c + fi + ;; + + help2man) + if test -z "$run" && ($1 --version) > /dev/null 2>&1; then + # We have it, but it failed. + exit 1 + fi + + echo 1>&2 "\ +WARNING: \`$1' is missing on your system. You should only need it if + you modified a dependency of a manual page. You may need the + \`Help2man' package in order for those modifications to take + effect. You can get \`Help2man' from any GNU archive site." + + file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'` + if test -z "$file"; then + file=`echo "$*" | sed -n 's/.*--output=\([^ ]*\).*/\1/p'` + fi + if [ -f "$file" ]; then + touch $file + else + test -z "$file" || exec >$file + echo ".ab help2man is required to generate this page" + exit 1 + fi + ;; + + makeinfo) + if test -z "$run" && (makeinfo --version) > /dev/null 2>&1; then + # We have makeinfo, but it failed. + exit 1 + fi + + echo 1>&2 "\ +WARNING: \`$1' is missing on your system. You should only need it if + you modified a \`.texi' or \`.texinfo' file, or any other file + indirectly affecting the aspect of the manual. The spurious + call might also be the consequence of using a buggy \`make' (AIX, + DU, IRIX). You might want to install the \`Texinfo' package or + the \`GNU make' package. Grab either from any GNU archive site." + file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'` + if test -z "$file"; then + file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'` + file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file` + fi + touch $file + ;; + + tar) + shift + if test -n "$run"; then + echo 1>&2 "ERROR: \`tar' requires --run" + exit 1 + fi + + # We have already tried tar in the generic part. + # Look for gnutar/gtar before invocation to avoid ugly error + # messages. + if (gnutar --version > /dev/null 2>&1); then + gnutar ${1+"$@"} && exit 0 + fi + if (gtar --version > /dev/null 2>&1); then + gtar ${1+"$@"} && exit 0 + fi + firstarg="$1" + if shift; then + case "$firstarg" in + *o*) + firstarg=`echo "$firstarg" | sed s/o//` + tar "$firstarg" ${1+"$@"} && exit 0 + ;; + esac + case "$firstarg" in + *h*) + firstarg=`echo "$firstarg" | sed s/h//` + tar "$firstarg" ${1+"$@"} && exit 0 + ;; + esac + fi + + echo 1>&2 "\ +WARNING: I can't seem to be able to run \`tar' with the given arguments. + You may want to install GNU tar or Free paxutils, or check the + command line arguments." + exit 1 + ;; + + *) + echo 1>&2 "\ +WARNING: \`$1' is needed, and you do not seem to have it handy on your + system. You might have modified some files without having the + proper tools for further handling them. Check the \`README' file, + it often tells you about the needed prerequirements for installing + this package. You may also peek at any GNU archive site, in case + some other package would contain this missing \`$1' program." + exit 1 + ;; +esac + +exit 0 diff --git a/config/mkinstalldirs b/config/mkinstalldirs new file mode 100644 index 0000000..4fbbc3e --- /dev/null +++ b/config/mkinstalldirs @@ -0,0 +1,101 @@ +#! /bin/sh +# mkinstalldirs --- make directory hierarchy +# Author: Noah Friedman +# Created: 1993-05-16 +# Public domain + +# $Id: mkinstalldirs,v 1.1.1.1 2003/08/12 06:44:46 drepper Exp $ + +errstatus=0 +dirmode="" + +usage="\ +Usage: mkinstalldirs [-h] [--help] [-m mode] dir ..." + +# process command line arguments +while test $# -gt 0 ; do + case "${1}" in + -h | --help | --h* ) # -h for help + echo "${usage}" 1>&2; exit 0 ;; + -m ) # -m PERM arg + shift + test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; } + dirmode="${1}" + shift ;; + -- ) shift; break ;; # stop option processing + -* ) echo "${usage}" 1>&2; exit 1 ;; # unknown option + * ) break ;; # first non-opt arg + esac +done + +for file +do + if test -d "$file"; then + shift + else + break + fi +done + +case $# in +0) exit 0 ;; +esac + +case $dirmode in +'') + if mkdir -p -- . 2>/dev/null; then + echo "mkdir -p -- $*" + exec mkdir -p -- "$@" + fi ;; +*) + if mkdir -m "$dirmode" -p -- . 2>/dev/null; then + echo "mkdir -m $dirmode -p -- $*" + exec mkdir -m "$dirmode" -p -- "$@" + fi ;; +esac + +for file +do + set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'` + shift + + pathcomp= + for d + do + pathcomp="$pathcomp$d" + case "$pathcomp" in + -* ) pathcomp=./$pathcomp ;; + esac + + if test ! -d "$pathcomp"; then + echo "mkdir $pathcomp" + + mkdir "$pathcomp" || lasterr=$? + + if test ! -d "$pathcomp"; then + errstatus=$lasterr + else + if test ! -z "$dirmode"; then + echo "chmod $dirmode $pathcomp" + + lasterr="" + chmod "$dirmode" "$pathcomp" || lasterr=$? + + if test ! -z "$lasterr"; then + errstatus=$lasterr + fi + fi + fi + fi + + pathcomp="$pathcomp/" + done +done + +exit $errstatus + +# Local Variables: +# mode: shell-script +# sh-indentation: 3 +# End: +# mkinstalldirs ends here diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..12cd551 --- /dev/null +++ b/configure.ac @@ -0,0 +1,276 @@ +dnl Process this file with autoconf to produce a configure script. +dnl Configure input file for elfutils. -*-autoconf-*- +dnl +dnl Copyright (C) 1996-2002, 2003, 2004, 2005 Red Hat, Inc. +dnl +dnl This program is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation, version 2. +dnl +dnl This program is distributed in the hope that it will be useful, +dnl but WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +dnl GNU General Public License for more details. +dnl +dnl You should have received a copy of the GNU General Public License +dnl along with this program; if not, write to the Free Software Foundation, +dnl Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +dnl +AC_INIT([Red Hat elfutils],[0.110],[http://bugzilla.redhat.com/bugzilla/], + [elfutils]) + +AC_CONFIG_AUX_DIR([config]) +AC_CONFIG_FILES([config/Makefile]) + +AC_COPYRIGHT([Copyright (C) 1996-2003, 2004, 2005 Red Hat, Inc.]) +AC_PREREQ(2.59) dnl Minimum Autoconf version required. + +AM_INIT_AUTOMAKE([gnits 1.7]) + +dnl Unique ID for this build. +MODVERSION="Build on $(hostname) $(date +%FT%R:%S%z)" +AC_SUBST([MODVERSION]) +AC_DEFINE_UNQUOTED(MODVERSION, "$MODVERSION") +AH_TEMPLATE([MODVERSION], [Identifier for modules in the build.]) + +AC_CONFIG_SRCDIR([libelf/libelf.h]) +AC_CONFIG_FILES([Makefile]) +AC_CONFIG_HEADERS([config.h]) + +AC_CONFIG_MACRO_DIR([m4]) +AC_CONFIG_FILES([m4/Makefile]) + +dnl The RPM spec file. We substitute a few values in the file. +AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in]) + + +AC_CANONICAL_HOST + +AC_ARG_ENABLE([tls], +AS_HELP_STRING([--enable-tls], [enable use of thread local storage]), +AC_DEFINE(USE_TLS)) +AH_TEMPLATE([USE_TLS], [Defined if thread local storage should be used.]) + +dnl Add all the languages for which translations are available. +ALL_LINGUAS= + +AC_PROG_CC +AC_PROG_RANLIB +AC_PROG_YACC +AM_PROG_LEX + +AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl +old_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -std=gnu99" +AC_COMPILE_IFELSE([dnl +int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; }], + ac_cv_c99=yes, ac_cv_c99=no) +CFLAGS="$old_CFLAGS"]) +AS_IF([test "x$ac_cv_c99" != xyes], + AC_MSG_ERROR([gcc with C99 support required])) + +LOCALEDIR=$datadir +AC_SUBST(LOCALEDIR) +AC_DEFINE_UNQUOTED(LOCALEDIR, "$LOCALEDIR") +AH_TEMPLATE([LOCALEDIR], [Directory to place translation files in.]) + +DATADIRNAME=$datadir +AC_SUBST(DATADIRNAME) + +dnl This test must come as early as possible after the compiler configuration +dnl tests, because the choice of the file model can (in principle) affect +dnl whether functions and headers are available, whether they work, etc. +AC_SYS_LARGEFILE + +dnl Enable the linker to be build as a native-only linker. By default it +dnl can handle all architectures but this comes at a cost. A native +dnl will be slightly faster, small, and has fewer dependencies. +native_ld=no +AC_ARG_ENABLE([generic], +AS_HELP_STRING([--disable-generic], [do not build generic linker]), [dnl +if test "$enable_generic" = no; then + case "$host_cpu" in + i?86) + AC_DEFINE(NATIVE_ELF, 32) + native_ld=yes + base_cpu=i386 + ;; + *) + AC_MSG_ERROR([no machine-specific linker for this configuration available]) + ;; + esac +fi]) +AH_TEMPLATE([NATIVE_ELF], +[Define to 32 or 64 if a specific implementation is wanted.]) +AM_CONDITIONAL(NATIVE_LD, test "$native_ld" = yes) +dnl The automake generated Makefile cannot deal with macros in the name +dnl of files if at any time there is no such file, even if the filename +dnl would not be used. +AS_IF([test -z "$base_cpu"], [base_cpu=none]) +AC_SUBST(base_cpu) + +dnl Enable debugging via mudflap. This option will cause most libraries +dnl to be built as archives which are statically linked into the applications. +dnl All code, as far as possible, is compiled instrumented to catch all +dnl the bugs valgrind is able to catch. +use_mudflap=no +AC_ARG_ENABLE([mudflap], +AS_HELP_STRING([--enable-mudflap], +[build binaries with mudflap instrumentation]), [dnl +if test "x$enable_mudflap" = xyes; then + # Check whether the compiler support -fmudflap. + old_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -fmudflap" + AC_TRY_COMPILE([], [], use_mudflap=yes, use_mudflap=fail) + CFLAGS="$old_CFLAGS" +fi]) +if test "$use_mudflap" = fail; then + AC_MSG_FAILURE([--enable-mudflap requires a compiler which understands this option]) +fi +AM_CONDITIONAL(MUDFLAP, test "$use_mudflap" = yes) + +LIBEBL_SUBDIR="$PACKAGE" +AC_ARG_ENABLE([libebl-subdir], +AS_HELP_STRING([--enable-libebl-subdir=DIR], +[install libebl_CPU modules in $(libdir)/DIR]), [dnl +LIBEBL_SUBDIR="$enable_libebl_subdir"]) +AC_SUBST([LIBEBL_SUBDIR]) +AC_DEFINE_UNQUOTED(LIBEBL_SUBDIR, "$LIBEBL_SUBDIR") +AH_TEMPLATE([LIBEBL_SUBDIR], [$libdir subdirectory containing libebl modules.]) + +dnl The directories with content. + +dnl Documentation. +dnl Commented out for now. +dnl AC_CONFIG_FILES([doc/Makefile]) + +dnl Support library. +AC_CONFIG_FILES([lib/Makefile]) + +dnl ELF library. +AC_CONFIG_FILES([libelf/Makefile libelf-po/Makefile.in]) + +dnl Higher-level ELF support library. +AC_CONFIG_FILES([libebl/Makefile]) + +dnl DWARF library. +AC_CONFIG_FILES([libdw/Makefile]) + +dnl Higher-level DWARF support library. +AC_CONFIG_FILES([libdwfl/Makefile]) + +dnl CPU handling library. +AC_CONFIG_FILES([libcpu/Makefile]) + +dnl Assembler library. +AC_CONFIG_FILES([libasm/Makefile]) + +dnl Tools. +AC_CONFIG_FILES([src/Makefile po/Makefile.in]) + +dnl Test suite. +AC_CONFIG_FILES([tests/Makefile]) + +# Get the definitions necessary to create the Makefiles in the po +# subdirectories. This is a small subset of the gettext rules. +AC_SUBST(USE_NLS, yes) +AM_PO_SUBDIRS + + +dnl Test of the config.h file. We hide all kinds of configuration magic +dnl in there. +AH_BOTTOM([ +/* Eventually we will allow multi-threaded applications to use the + libraries. Therefore we will add the necessary locking although + the macros used expand to nothing for now. */ +#define lock_lock(lock) ((void) (lock)) +#define rwlock_define(class,name) class int name +#define rwlock_init(lock) ((void) (lock)) +#define rwlock_fini(lock) ((void) (lock)) +#define rwlock_rdlock(lock) ((void) (lock)) +#define rwlock_wrlock(lock) ((void) (lock)) +#define rwlock_unlock(lock) ((void) (lock)) +#define tls_key_t void * +#define key_create(keyp, freefct) (1) +#define getspecific(key) key +#define setspecific(key,val) key = val +#define once_define(class,name) class int name +#define once_execute(name,fct) \ + do { \ + if (name == 0) \ + fct (); \ + name = 1; \ + } while (0) + +/* gettext helper macro. */ +#define N_(Str) Str + +/* Compiler-specific definitions. */ +#define strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name))); + +#ifdef __i386__ +# define internal_function_def __attribute__ ((regparm (3), stdcall)) +#else +# define internal_function_def /* nothing */ +#endif + +# define internal_function \ + internal_function_def __attribute__ ((visibility ("internal"))) +# define internal_strong_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((alias (#name), visibility ("internal"))) internal_function_def; + +#define attribute_hidden \ + __attribute__ ((visibility ("hidden"))) + +/* Define ALLOW_UNALIGNED if the architecture allows operations on + unaligned memory locations. */ +#if defined __i386__ || defined __alpha__ || defined __x86_64__ || defined __ia64__ +# define ALLOW_UNALIGNED 1 +#else +# define ALLOW_UNALIGNED 0 +#endif + +#define unlikely(expr) __builtin_expect (expr, 0) +#define likely(expr) __builtin_expect (expr, 1) + +#define obstack_calloc(ob, size) \ + ({ size_t _s = (size); memset (obstack_alloc (ob, _s), '\0', _s); }) +#define obstack_strdup(ob, str) \ + ({ const char *_s = (str); obstack_copy0 (ob, _s, strlen (_s)); }) +#define obstack_strndup(ob, str, n) \ + ({ const char *_s = (str); obstack_copy0 (ob, _s, strnlen (_s, n)); }) + +#if __STDC_VERSION__ >= 199901L +# define flexarr_size /* empty */ +#else +# define flexarr_size 0 +#endif + +/* Calling conventions. */ +#ifdef __i386__ +# define CALLING_CONVENTION regparm (3), stdcall +# define AND_CALLING_CONVENTION , regparm (3), stdcall +#else +# define CALLING_CONVENTION +# define AND_CALLING_CONVENTION +#endif + +/* Avoid PLT entries. */ +#ifdef PIC +# define INTUSE(name) _INTUSE(name) +# define _INTUSE(name) __##name##_internal +# define INTDEF(name) _INTDEF(name) +# define _INTDEF(name) \ + extern __typeof__ (name) __##name##_internal __attribute__ ((alias (#name))); +# define INTDECL(name) _INTDECL(name) +# define _INTDECL(name) \ + extern __typeof__ (name) __##name##_internal attribute_hidden; +#else +# define INTUSE(name) name +# define INTDEF(name) /* empty */ +# define INTDECL(name) /* empty */ +#endif +]) + +AC_OUTPUT diff --git a/doc/.cvsignore b/doc/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/doc/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/doc/ChangeLog b/doc/ChangeLog new file mode 100644 index 0000000..380a0cd --- /dev/null +++ b/doc/ChangeLog @@ -0,0 +1,12 @@ +2005-04-29 Ulrich Drepper + + * elfutils.sgml: Some typo fixes and a few extensions. + Patch by Eric Christopher . + +2005-02-22 Ulrich Drepper + + * Makefile.am: Prefer pdf. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/doc/Makefile.am b/doc/Makefile.am new file mode 100644 index 0000000..9297306 --- /dev/null +++ b/doc/Makefile.am @@ -0,0 +1,29 @@ +## Process this file with automake to create Makefile.in +## Configure input file for elfutils. +## +## Copyright (C) 1996-2001, 2002, 2005 Red Hat, Inc. +## +## This program is Open Source software; you can redistribute it and/or +## modify it under the terms of the Open Software License version 1.0 as +## published by the Open Source Initiative. +## +## You should have received a copy of the Open Software License along +## with this program; if not, you may obtain a copy of the Open Software +## License version 1.0 from http://www.opensource.org/licenses/osl.php or +## by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +## 3001 King Ranch Road, Ukiah, CA 95482. */ +## +EXTRA_DIST = elfutils.sgml + +CLEANFILES = elfutils.dvi + +# We need only a few special rules to generate the various output formats +# from the SGML sources. +.PHONY: dvi pdf html +pdf: $(srcdir)elfutils.pdf +dvi: $(srcdir)elfutils.dvi + +$(srcdir)%.dvi: %.sgml + db2dvi $^ +$(srcdir)%.pdf: %.sgml + db2pdf $^ diff --git a/doc/elfutils.sgml b/doc/elfutils.sgml new file mode 100644 index 0000000..d7fea40 --- /dev/null +++ b/doc/elfutils.sgml @@ -0,0 +1,444 @@ +new-bu"> +]> + + + New Binutils User's and Reference Manual + + + <filename>libelf</filename> <acronym>ABI</acronym> + + The ABI of the + libelf implemented in the &package; package + is following that of Sun's implementation which in turn in derived + from the original SysVr4 implementation. There are some + extensions over Sun's versions, though, which makes it impossible + to replace this implementation with Sun's. + + + + + + Elf_Data + Descriptor for Data Buffer + + + + +#include <libelf.h> + + + + + Description + + The Elf_Data structure is as + a descriptor for a data buffer associated with a section. + Every data buffer is associated with a specific section (see + Elf_Scn). + + A data buffer is created when reading a file. In + this case only a single buffer is present in the section. The + user can add as many sections as wanted to a section and they + can be retrieved using the elf_getdata + and elf_rawdata functions. + + The Elf_Data structure + contains the following members: + + + void *d_buf + Elf_Type d_type + size_t d_size + off_t d_off + size_t d_align + unsigned int d_version + + + All of these members can be modified directly by the + user. They can be used to resize a section, to change its + content or type, and many more tasks. This is also true for + the data read from a file. The meaning of each member is as + follows: + + + + d_buf + + The d_buf member is + the pointer to the buffer with the actual data. When + the ELF file was read from a file the first and only + data buffer of a section is allocated by the + libelf library. The user should + not try to resize or free this buffer. When the user + adds a new data buffer to a section the associated + memory block is normally allocated by the user. It is + important that the buffer must have a lifetime at least + until the ELF file is closed entirely (important when + the buffer is allocated on the stack). If the buffer is + not allocated on the stack it is the user's + responsibility to free the buffer after it is not used + anymore. The d_buf member + can contain a null pointer if the data buffer is + empty. + + + + + d_type + + The d_type + determines how the data of the buffer is interpreted. + This type is determined from the section type and must + be the same for all data buffers for a section. See + Elf_Type for more information. + The + function uses this information to convert the data of + the buffer between the external form and the form + represented to the user and back if necessary. + + + + + d_version + + The d_version + contains the ELF version of the file. + + + + + d_size + + The d_size contains + the size of the buffer in bytes. + + + + + d_off + + The d_off is the + offset into the section in bytes. + + + + + d_align + + The d_align is the + address alignment of the section in bytes. + + + + + + + + + + + elf_getdata + Get washed data of section + + + + + +#include <libelf.h> + + + Elf_Data *elf_getdata + Elf_Scn *scn + Elf_Data *data + + + + + + Description + + The elf_getdata function allows + the user to retrieve the data buffers of the section + scn. There can be more than one buffer + if the user explicitly added them. When a file is read the + libelf library creates exactly one data + buffer. + + The first buffer in the list can be obtained by + passing a null pointer in the parameter + data. To get the next data buffer the + previously returned value must be passed in the + data parameter. If there are no more + buffer left in the list a null pointer is returned. + + If the data parameter is not a + null pointer it must be a descriptor for a buffer + associated with the section scn. If + this is not the case a null pointer is returned. To + facilitate error handling elf_getdata + also returns a null pointer if the scn + parameter is a null pointer. + + + + + + elf_update + update an ELF descriptor + + + + + +#include <libelf.h> + + + off_t elf_update + Elf *elf + Elf_Cmd cmd + + + + + + Description + + The user is responsible for filling in the following + fields in the named data structures: + + + Fields not set by <function>elf_update</function> + + + + + + Data Structure + Member + Exception + + + + + Elfxx_Ehdr + e_ident[EI_DATA] + see below + + + + e_type + + + + + + e_machine + + + + + e_version + see below + + + + e_entry + + + + + e_phoff + if ELF_F_LAYOUT is used + + + + e_shoff + if ELF_F_LAYOUT is used + + + + e_flags + + + + + e_shstrndx + + + + Elfxx_Phdr + p_type + + + + + p_offset + + + + + p_vaddr + + + + + p_paddr + + + + + p_filesz + + + + + p_memsz + + + + + p_flags + + + + + p_align + + + + + Elfxx_Shdr + sh_name + + + + + sh_type + + + + + sh_flags + + + + + sh_addr + + + + + sh_offset + if ELF_F_LAYOUT is used + + + + sh_size + if ELF_F_LAYOUT is used + + + + sh_link + + + + + + sh_info + + + + + sh_addralign + if ELF_F_LAYOUT is used + + + + sh_entsize + + + + + Elf_Data + d_buf + + + + + d_type + + + + + d_size + + + + + d_off + if ELF_F_LAYOUT is used + + + + d_align + + + + + + d_version + + + + +
+ + Two fields of the ELF header are handled in a special + way: + + + + e_version + + The user can set this field to the vvalue for + the version to be used. It is an error if the library + cannot handle this version. If the field contains the + value EV_NONE the library will fill in + its own internal version. + + + + + e_ident[EI_DATA] + + The user should fill in the byte ordering for + the file. If the value of the field is + ELFDATANONE the library replaces it + with the native byte ordering for the machine. + + + + + + + + + <filename>libelf</filename> Internals + + Since the binary format handling tools need constant + attention since there are always new machines and varients + therefore coming out it is important to have the implementation + well documented. Only this way extensions can be made in the + right places and the mistakes of the past avoided. + + + diff --git a/fake-src/FULL b/fake-src/FULL new file mode 100644 index 0000000..15e6568 --- /dev/null +++ b/fake-src/FULL @@ -0,0 +1,3 @@ +The full elfutils package is available from Red Hat's web site at: + + ***FILE ME IN*** diff --git a/fake-src/Makefile.am b/fake-src/Makefile.am new file mode 100644 index 0000000..d8b0fff --- /dev/null +++ b/fake-src/Makefile.am @@ -0,0 +1,24 @@ +## Process this file with automake to create Makefile.in +## Configure input file for elfutils. +## +## Copyright (C) 1996-2002, 2003, 2004, 2005 Red Hat, Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, version 2. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software Foundation, +## Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +## +bin_SCRIPTS = readelf nm size strip elflint addr2line +EXTRA_DIST = readelf nm size strip elflint.in addr2line FULL +include_HEADERS = dwarf.h + +elflint: $(srcdir)/elflint.in + sed "s/@EUVERSION@/$(VERSION)/" $< > $@ diff --git a/fake-src/Makefile.in b/fake-src/Makefile.in new file mode 100644 index 0000000..0c2d41d --- /dev/null +++ b/fake-src/Makefile.in @@ -0,0 +1,390 @@ +# Makefile.in generated by automake 1.7.9 from Makefile.am. +# @configure_input@ + +# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 +# Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +top_builddir = .. + +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +INSTALL = @INSTALL@ +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +host_triplet = @host@ +ACLOCAL = @ACLOCAL@ +AMDEP_FALSE = @AMDEP_FALSE@ +AMDEP_TRUE = @AMDEP_TRUE@ +AMTAR = @AMTAR@ +AUTOCONF = @AUTOCONF@ +AUTOHEADER = @AUTOHEADER@ +AUTOMAKE = @AUTOMAKE@ +AWK = @AWK@ +CC = @CC@ +CCDEPMODE = @CCDEPMODE@ +CFLAGS = @CFLAGS@ +CPP = @CPP@ +CPPFLAGS = @CPPFLAGS@ +CYGPATH_W = @CYGPATH_W@ +DATADIRNAME = @DATADIRNAME@ +DEFS = @DEFS@ +DEPDIR = @DEPDIR@ +ECHO_C = @ECHO_C@ +ECHO_N = @ECHO_N@ +ECHO_T = @ECHO_T@ +EGREP = @EGREP@ +EXEEXT = @EXEEXT@ +GMSGFMT = @GMSGFMT@ +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@ +INTLLIBS = @INTLLIBS@ +LDFLAGS = @LDFLAGS@ +LEX = @LEX@ +LEXLIB = @LEXLIB@ +LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@ +LIBICONV = @LIBICONV@ +LIBINTL = @LIBINTL@ +LIBOBJS = @LIBOBJS@ +LIBS = @LIBS@ +LOCALEDIR = @LOCALEDIR@ +LTLIBICONV = @LTLIBICONV@ +LTLIBINTL = @LTLIBINTL@ +LTLIBOBJS = @LTLIBOBJS@ +MAKEINFO = @MAKEINFO@ +MKINSTALLDIRS = @MKINSTALLDIRS@ +MSGFMT = @MSGFMT@ +MSGMERGE = @MSGMERGE@ +NATIVE_LD_FALSE = @NATIVE_LD_FALSE@ +NATIVE_LD_TRUE = @NATIVE_LD_TRUE@ +OBJEXT = @OBJEXT@ +PACKAGE = @PACKAGE@ +PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@ +PACKAGE_NAME = @PACKAGE_NAME@ +PACKAGE_STRING = @PACKAGE_STRING@ +PACKAGE_TARNAME = @PACKAGE_TARNAME@ +PACKAGE_VERSION = @PACKAGE_VERSION@ +PATH_SEPARATOR = @PATH_SEPARATOR@ +POSUB = @POSUB@ +RANLIB = @RANLIB@ +SET_MAKE = @SET_MAKE@ +SHELL = @SHELL@ +STRIP = @STRIP@ +USE_NLS = @USE_NLS@ +VERSION = @VERSION@ +XGETTEXT = @XGETTEXT@ +YACC = @YACC@ +ac_ct_CC = @ac_ct_CC@ +ac_ct_RANLIB = @ac_ct_RANLIB@ +ac_ct_STRIP = @ac_ct_STRIP@ +am__fastdepCC_FALSE = @am__fastdepCC_FALSE@ +am__fastdepCC_TRUE = @am__fastdepCC_TRUE@ +am__include = @am__include@ +am__leading_dot = @am__leading_dot@ +am__quote = @am__quote@ +base_cpu = @base_cpu@ +bindir = @bindir@ +build = @build@ +build_alias = @build_alias@ +build_cpu = @build_cpu@ +build_os = @build_os@ +build_vendor = @build_vendor@ +datadir = @datadir@ +exec_prefix = @exec_prefix@ +host = @host@ +host_alias = @host_alias@ +host_cpu = @host_cpu@ +host_os = @host_os@ +host_vendor = @host_vendor@ +includedir = @includedir@ +infodir = @infodir@ +install_sh = @install_sh@ +libdir = @libdir@ +libexecdir = @libexecdir@ +localstatedir = @localstatedir@ +mandir = @mandir@ +oldincludedir = @oldincludedir@ +prefix = @prefix@ +program_transform_name = @program_transform_name@ +sbindir = @sbindir@ +sharedstatedir = @sharedstatedir@ +sysconfdir = @sysconfdir@ +target_alias = @target_alias@ +bin_SCRIPTS = readelf nm size strip elflint +EXTRA_DIST = readelf nm size strip elflint.in FULL +include_HEADERS = dwarf.h +subdir = fake-src +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs +CONFIG_HEADER = $(top_builddir)/config.h +CONFIG_CLEAN_FILES = +SCRIPTS = $(bin_SCRIPTS) + +DIST_SOURCES = +HEADERS = $(include_HEADERS) + +DIST_COMMON = $(include_HEADERS) $(srcdir)/Makefile.in Makefile.am +all: all-am + +.SUFFIXES: +$(srcdir)/Makefile.in: Makefile.am $(top_srcdir)/configure.ac $(ACLOCAL_M4) + cd $(top_srcdir) && \ + $(AUTOMAKE) --gnits fake-src/Makefile +Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status + cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe) +binSCRIPT_INSTALL = $(INSTALL_SCRIPT) +install-binSCRIPTS: $(bin_SCRIPTS) + @$(NORMAL_INSTALL) + $(mkinstalldirs) $(DESTDIR)$(bindir) + @list='$(bin_SCRIPTS)'; 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you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _DWARF_H +#define _DWARF_H 1 + +/* DWARF tags. */ +enum + { + DW_TAG_array_type = 0x01, + DW_TAG_class_type = 0x02, + DW_TAG_entry_point = 0x03, + DW_TAG_enumeration_type = 0x04, + DW_TAG_formal_parameter = 0x05, + DW_TAG_imported_declaration = 0x08, + DW_TAG_label = 0x0a, + DW_TAG_lexical_block = 0x0b, + DW_TAG_member = 0x0d, + DW_TAG_pointer_type = 0x0f, + DW_TAG_reference_type = 0x10, + DW_TAG_compile_unit = 0x11, + DW_TAG_string_type = 0x12, + DW_TAG_structure_type = 0x13, + DW_TAG_subroutine_type = 0x15, + DW_TAG_typedef = 0x16, + DW_TAG_union_type = 0x17, + DW_TAG_unspecified_parameters = 0x18, + DW_TAG_variant = 0x19, + DW_TAG_common_block = 0x1a, + DW_TAG_common_inclusion = 0x1b, + DW_TAG_inheritance = 0x1c, + DW_TAG_inlined_subroutine = 0x1d, + DW_TAG_module = 0x1e, + DW_TAG_ptr_to_member_type = 0x1f, + DW_TAG_set_type = 0x20, + DW_TAG_subrange_type = 0x21, + DW_TAG_with_stmt = 0x22, + DW_TAG_access_declaration = 0x23, + DW_TAG_base_type = 0x24, + DW_TAG_catch_block = 0x25, + DW_TAG_const_type = 0x26, + DW_TAG_constant = 0x27, + DW_TAG_enumerator = 0x28, + DW_TAG_file_type = 0x29, + DW_TAG_friend = 0x2a, + DW_TAG_namelist = 0x2b, + DW_TAG_namelist_item = 0x2c, + DW_TAG_packed_type = 0x2d, + DW_TAG_subprogram = 0x2e, + DW_TAG_template_type_param = 0x2f, + DW_TAG_template_value_param = 0x30, + DW_TAG_thrown_type = 0x31, + DW_TAG_try_block = 0x32, + DW_TAG_variant_part = 0x33, + DW_TAG_variable = 0x34, + DW_TAG_volatile_type = 0x35, + DW_TAG_lo_user = 0x4080, + DW_TAG_MIPS_loop = 0x4081, + DW_TAG_format_label = 0x4101, + DW_TAG_function_template = 0x4102, + DW_TAG_class_template = 0x4103, + DW_TAG_hi_user = 0xffff + }; + + +/* Children determination encodings. */ +enum + { + DW_CHILDREN_no = 0, + DW_CHILDREN_yes = 1 + }; + + +/* DWARF attributes encodings. */ +enum + { + DW_AT_sibling = 0x01, + DW_AT_location = 0x02, + DW_AT_name = 0x03, + DW_AT_ordering = 0x09, + DW_AT_subscr_data = 0x0a, + DW_AT_byte_size = 0x0b, + DW_AT_bit_offset = 0x0c, + DW_AT_bit_size = 0x0d, + DW_AT_element_list = 0x0f, + DW_AT_stmt_list = 0x10, + DW_AT_low_pc = 0x11, + DW_AT_high_pc = 0x12, + DW_AT_language = 0x13, + DW_AT_member = 0x14, + DW_AT_discr = 0x15, + DW_AT_discr_value = 0x16, + DW_AT_visibility = 0x17, + DW_AT_import = 0x18, + DW_AT_string_length = 0x19, + DW_AT_common_reference = 0x1a, + DW_AT_comp_dir = 0x1b, + DW_AT_const_value = 0x1c, + DW_AT_containing_type = 0x1d, + DW_AT_default_value = 0x1e, + DW_AT_inline = 0x20, + DW_AT_is_optional = 0x21, + DW_AT_lower_bound = 0x22, + DW_AT_producer = 0x25, + DW_AT_prototyped = 0x27, + DW_AT_return_addr = 0x2a, + DW_AT_start_scope = 0x2c, + DW_AT_stride_size = 0x2e, + DW_AT_upper_bound = 0x2f, + DW_AT_abstract_origin = 0x31, + DW_AT_accessibility = 0x32, + DW_AT_address_class = 0x33, + DW_AT_artificial = 0x34, + DW_AT_base_types = 0x35, + DW_AT_calling_convention = 0x36, + DW_AT_count = 0x37, + DW_AT_data_member_location = 0x38, + DW_AT_decl_column = 0x39, + DW_AT_decl_file = 0x3a, + DW_AT_decl_line = 0x3b, + DW_AT_declaration = 0x3c, + DW_AT_discr_list = 0x3d, + DW_AT_encoding = 0x3e, + DW_AT_external = 0x3f, + DW_AT_frame_base = 0x40, + DW_AT_friend = 0x41, + DW_AT_identifier_case = 0x42, + DW_AT_macro_info = 0x43, + DW_AT_namelist_items = 0x44, + DW_AT_priority = 0x45, + DW_AT_segment = 0x46, + DW_AT_specification = 0x47, + DW_AT_static_link = 0x48, + DW_AT_type = 0x49, + DW_AT_use_location = 0x4a, + DW_AT_variable_parameter = 0x4b, + DW_AT_virtuality = 0x4c, + DW_AT_vtable_elem_location = 0x4d, + DW_AT_lo_user = 0x2000, + DW_AT_MIPS_fde = 0x2001, + DW_AT_MIPS_loop_begin = 0x2002, + DW_AT_MIPS_tail_loop_begin = 0x2003, + DW_AT_MIPS_epilog_begin = 0x2004, + DW_AT_MIPS_loop_unroll_factor = 0x2005, + DW_AT_MIPS_software_pipeline_depth = 0x2006, + DW_AT_MIPS_linkage_name = 0x2007, + DW_AT_MIPS_stride = 0x2008, + DW_AT_MIPS_abstract_name = 0x2009, + DW_AT_MIPS_clone_origin = 0x200a, + DW_AT_MIPS_has_inlines = 0x200b, + DW_AT_MIPS_stride_byte = 0x200c, + DW_AT_MIPS_stride_elem = 0x200d, + DW_AT_MIPS_ptr_dopetype = 0x200e, + DW_AT_MIPS_allocatable_dopetype = 0x200f, + DW_AT_MIPS_assumed_shape_dopetype = 0x2010, + DW_AT_MIPS_assumed_size = 0x2011, + DW_AT_sf_names = 0x2101, + DW_AT_src_info = 0x2102, + DW_AT_mac_info = 0x2103, + DW_AT_src_coords = 0x2104, + DW_AT_body_begin = 0x2105, + DW_AT_body_end = 0x2106, + DW_AT_hi_user = 0x3fff + }; + + +/* DWARF form encodings. */ +enum + { + DW_FORM_addr = 0x01, + DW_FORM_block2 = 0x03, + DW_FORM_block4 = 0x04, + DW_FORM_data2 = 0x05, + DW_FORM_data4 = 0x06, + DW_FORM_data8 = 0x07, + DW_FORM_string = 0x08, + DW_FORM_block = 0x09, + DW_FORM_block1 = 0x0a, + DW_FORM_data1 = 0x0b, + DW_FORM_flag = 0x0c, + DW_FORM_sdata = 0x0d, + DW_FORM_strp = 0x0e, + DW_FORM_udata = 0x0f, + DW_FORM_ref_addr = 0x10, + DW_FORM_ref1 = 0x11, + DW_FORM_ref2 = 0x12, + DW_FORM_ref4 = 0x13, + DW_FORM_ref8 = 0x14, + DW_FORM_ref_udata = 0x15, + DW_FORM_indirect = 0x16 + }; + + +/* DWARF location operation encodings. */ +enum + { + DW_OP_addr = 0x03, /* Constant address. */ + DW_OP_deref = 0x06, + DW_OP_const1u = 0x08, /* Unsigned 1-byte constant. */ + DW_OP_const1s = 0x09, /* Signed 1-byte constant. */ + DW_OP_const2u = 0x0a, /* Unsigned 2-byte constant. */ + DW_OP_const2s = 0x0b, /* Signed 2-byte constant. */ + DW_OP_const4u = 0x0c, /* Unsigned 4-byte constant. */ + DW_OP_const4s = 0x0d, /* Signed 4-byte constant. */ + DW_OP_const8u = 0x0e, /* Unsigned 8-byte constant. */ + DW_OP_const8s = 0x0f, /* Signed 8-byte constant. */ + DW_OP_constu = 0x10, /* Unsigned LEB128 constant. */ + DW_OP_consts = 0x11, /* Signed LEB128 constant. */ + DW_OP_dup = 0x12, + DW_OP_drop = 0x13, + DW_OP_over = 0x14, + DW_OP_pick = 0x15, /* 1-byte stack index. */ + DW_OP_swap = 0x16, + DW_OP_rot = 0x17, + DW_OP_xderef = 0x18, + DW_OP_abs = 0x19, + DW_OP_and = 0x1a, + DW_OP_div = 0x1b, + DW_OP_minus = 0x1c, + DW_OP_mod = 0x1d, + DW_OP_mul = 0x1e, + DW_OP_neg = 0x1f, + DW_OP_not = 0x20, + DW_OP_or = 0x21, + DW_OP_plus = 0x22, + DW_OP_plus_uconst = 0x23, /* Unsigned LEB128 addend. */ + DW_OP_shl = 0x24, + DW_OP_shr = 0x25, + DW_OP_shra = 0x26, + DW_OP_xor = 0x27, + DW_OP_bra = 0x28, /* Signed 2-byte constant. */ + DW_OP_eq = 0x29, + DW_OP_ge = 0x2a, + DW_OP_gt = 0x2b, + DW_OP_le = 0x2c, + DW_OP_lt = 0x2d, + DW_OP_ne = 0x2e, + DW_OP_skip = 0x2f, /* Signed 2-byte constant. */ + DW_OP_lit0 = 0x30, /* Literal 0. */ + DW_OP_lit1 = 0x31, /* Literal 1. */ + DW_OP_lit2 = 0x32, /* Literal 2. */ + DW_OP_lit3 = 0x33, /* Literal 3. */ + DW_OP_lit4 = 0x34, /* Literal 4. */ + DW_OP_lit5 = 0x35, /* Literal 5. */ + DW_OP_lit6 = 0x36, /* Literal 6. */ + DW_OP_lit7 = 0x37, /* Literal 7. */ + DW_OP_lit8 = 0x38, /* Literal 8. */ + DW_OP_lit9 = 0x39, /* Literal 9. */ + DW_OP_lit10 = 0x3a, /* Literal 10. */ + DW_OP_lit11 = 0x3b, /* Literal 11. */ + DW_OP_lit12 = 0x3c, /* Literal 12. */ + DW_OP_lit13 = 0x3d, /* Literal 13. */ + DW_OP_lit14 = 0x3e, /* Literal 14. */ + DW_OP_lit15 = 0x3f, /* Literal 15. */ + DW_OP_lit16 = 0x40, /* Literal 16. */ + DW_OP_lit17 = 0x41, /* Literal 17. */ + DW_OP_lit18 = 0x42, /* Literal 18. */ + DW_OP_lit19 = 0x43, /* Literal 19. */ + DW_OP_lit20 = 0x44, /* Literal 20. */ + DW_OP_lit21 = 0x45, /* Literal 21. */ + DW_OP_lit22 = 0x46, /* Literal 22. */ + DW_OP_lit23 = 0x47, /* Literal 23. */ + DW_OP_lit24 = 0x48, /* Literal 24. */ + DW_OP_lit25 = 0x49, /* Literal 25. */ + DW_OP_lit26 = 0x4a, /* Literal 26. */ + DW_OP_lit27 = 0x4b, /* Literal 27. */ + DW_OP_lit28 = 0x4c, /* Literal 28. */ + DW_OP_lit29 = 0x4d, /* Literal 29. */ + DW_OP_lit30 = 0x4e, /* Literal 30. */ + DW_OP_lit31 = 0x4f, /* Literal 31. */ + DW_OP_reg0 = 0x50, /* Register 0. */ + DW_OP_reg1 = 0x51, /* Register 1. */ + DW_OP_reg2 = 0x52, /* Register 2. */ + DW_OP_reg3 = 0x53, /* Register 3. */ + DW_OP_reg4 = 0x54, /* Register 4. */ + DW_OP_reg5 = 0x55, /* Register 5. */ + DW_OP_reg6 = 0x56, /* Register 6. */ + DW_OP_reg7 = 0x57, /* Register 7. */ + DW_OP_reg8 = 0x58, /* Register 8. */ + DW_OP_reg9 = 0x59, /* Register 9. */ + DW_OP_reg10 = 0x5a, /* Register 10. */ + DW_OP_reg11 = 0x5b, /* Register 11. */ + DW_OP_reg12 = 0x5c, /* Register 12. */ + DW_OP_reg13 = 0x5d, /* Register 13. */ + DW_OP_reg14 = 0x5e, /* Register 14. */ + DW_OP_reg15 = 0x5f, /* Register 15. */ + DW_OP_reg16 = 0x60, /* Register 16. */ + DW_OP_reg17 = 0x61, /* Register 17. */ + DW_OP_reg18 = 0x62, /* Register 18. */ + DW_OP_reg19 = 0x63, /* Register 19. */ + DW_OP_reg20 = 0x64, /* Register 20. */ + DW_OP_reg21 = 0x65, /* Register 21. */ + DW_OP_reg22 = 0x66, /* Register 22. */ + DW_OP_reg23 = 0x67, /* Register 24. */ + DW_OP_reg24 = 0x68, /* Register 24. */ + DW_OP_reg25 = 0x69, /* Register 25. */ + DW_OP_reg26 = 0x6a, /* Register 26. */ + DW_OP_reg27 = 0x6b, /* Register 27. */ + DW_OP_reg28 = 0x6c, /* Register 28. */ + DW_OP_reg29 = 0x6d, /* Register 29. */ + DW_OP_reg30 = 0x6e, /* Register 30. */ + DW_OP_reg31 = 0x6f, /* Register 31. */ + DW_OP_breg0 = 0x70, /* Base register 0. */ + DW_OP_breg1 = 0x71, /* Base register 1. */ + DW_OP_breg2 = 0x72, /* Base register 2. */ + DW_OP_breg3 = 0x73, /* Base register 3. */ + DW_OP_breg4 = 0x74, /* Base register 4. */ + DW_OP_breg5 = 0x75, /* Base register 5. */ + DW_OP_breg6 = 0x76, /* Base register 6. */ + DW_OP_breg7 = 0x77, /* Base register 7. */ + DW_OP_breg8 = 0x78, /* Base register 8. */ + DW_OP_breg9 = 0x79, /* Base register 9. */ + DW_OP_breg10 = 0x7a, /* Base register 10. */ + DW_OP_breg11 = 0x7b, /* Base register 11. */ + DW_OP_breg12 = 0x7c, /* Base register 12. */ + DW_OP_breg13 = 0x7d, /* Base register 13. */ + DW_OP_breg14 = 0x7e, /* Base register 14. */ + DW_OP_breg15 = 0x7f, /* Base register 15. */ + DW_OP_breg16 = 0x80, /* Base register 16. */ + DW_OP_breg17 = 0x81, /* Base register 17. */ + DW_OP_breg18 = 0x82, /* Base register 18. */ + DW_OP_breg19 = 0x83, /* Base register 19. */ + DW_OP_breg20 = 0x84, /* Base register 20. */ + DW_OP_breg21 = 0x85, /* Base register 21. */ + DW_OP_breg22 = 0x86, /* Base register 22. */ + DW_OP_breg23 = 0x87, /* Base register 23. */ + DW_OP_breg24 = 0x88, /* Base register 24. */ + DW_OP_breg25 = 0x89, /* Base register 25. */ + DW_OP_breg26 = 0x8a, /* Base register 26. */ + DW_OP_breg27 = 0x8b, /* Base register 27. */ + DW_OP_breg28 = 0x8c, /* Base register 28. */ + DW_OP_breg29 = 0x8d, /* Base register 29. */ + DW_OP_breg30 = 0x8e, /* Base register 30. */ + DW_OP_breg31 = 0x8f, /* Base register 31. */ + DW_OP_regx = 0x90, /* Unsigned LEB128 register. */ + DW_OP_fbreg = 0x91, /* Signed LEB128 register. */ + DW_OP_bregx = 0x92, /* ULEB128 register followed by SLEB128 off. */ + DW_OP_piece = 0x93, /* ULEB128 size of piece addressed. */ + DW_OP_deref_size = 0x94, /* 1-byte size of data retrieved. */ + DW_OP_xderef_size = 0x95, /* 1-byte size of data retrieved. */ + DW_OP_nop = 0x96, + DW_OP_push_object_address = 0x97, + DW_OP_call2 = 0x98, + DW_OP_call4 = 0x99, + DW_OP_call_ref = 0x9a, + + DW_OP_lo_user = 0xe0, /* Implementation-defined range start. */ + DW_OP_hi_user = 0xff /* Implementation-defined range end. */ + }; + + +/* DWARF base type encodings. */ +enum + { + DW_ATE_void = 0x0, + DW_ATE_address = 0x1, + DW_ATE_boolean = 0x2, + DW_ATE_complex_float = 0x3, + DW_ATE_float = 0x4, + DW_ATE_signed = 0x5, + DW_ATE_signed_char = 0x6, + DW_ATE_unsigned = 0x7, + DW_ATE_unsigned_char = 0x8, + + DW_ATE_lo_user = 0x80, + DW_ATE_hi_user = 0xff + }; + + +/* DWARF accessibility encodings. */ +enum + { + DW_ACCESS_public = 1, + DW_ACCESS_protected = 2, + DW_ACCESS_private = 3 + }; + + +/* DWARF visibility encodings. */ +enum + { + DW_VIS_local = 1, + DW_VIS_exported = 2, + DW_VIS_qualified = 3 + }; + + +/* DWARF virtuality encodings. */ +enum + { + DW_VIRTUALITY_none = 0, + DW_VIRTUALITY_virtual = 1, + DW_VIRTUALITY_pure_virtual = 2 + }; + + +/* DWARF language encodings. */ +enum + { + DW_LANG_C89 = 0x0001, + DW_LANG_C = 0x0002, + DW_LANG_Ada83 = 0x0003, + DW_LANG_C_plus_plus = 0x0004, + DW_LANG_Cobol74 = 0x0005, + DW_LANG_Cobol85 = 0x0006, + DW_LANG_Fortran77 = 0x0007, + DW_LANG_Fortran90 = 0x0008, + DW_LANG_Pascal83 = 0x0009, + DW_LANG_Modula2 = 0x000a, + DW_LANG_Java = 0x000b, + DW_LANG_C99 = 0x000c, + DW_LANG_Ada95 = 0x000d, + DW_LANG_Fortran95 = 0x000e, + DW_LANG_PL1 = 0x000f, + DW_LANG_lo_user = 0x8000, + DW_LANG_Mips_Assembler = 0x8001, + DW_LANG_hi_user = 0xffff + }; + + +/* DWARF identifier case encodings. */ +enum + { + DW_ID_case_sensitive = 0, + DW_ID_up_case = 1, + DW_ID_down_case = 2, + DW_ID_case_insensitive = 3 + }; + + +/* DWARF calling conventions encodings. */ +enum + { + DW_CC_normal = 0x1, + DW_CC_program = 0x2, + DW_CC_nocall = 0x3, + DW_CC_lo_user = 0x40, + DW_CC_hi_user = 0xff + }; + + +/* DWARF inline encodings. */ +enum + { + DW_INL_not_inlined = 0, + DW_INL_inlined = 1, + DW_INL_declared_not_inlined = 2, + DW_INL_declared_inlined = 3 + }; + + +/* DWARF ordering encodings. */ +enum + { + DW_ORD_row_major = 0, + DW_ORD_col_major = 1 + }; + + +/* DWARF discriminant descriptor encodings. */ +enum + { + DW_DSC_label = 0, + DW_DSC_range = 1 + }; + + +/* DWARF standard opcode encodings. */ +enum + { + DW_LNS_copy = 1, + DW_LNS_advance_pc = 2, + DW_LNS_advance_line = 3, + DW_LNS_set_file = 4, + DW_LNS_set_column = 5, + DW_LNS_negate_stmt = 6, + DW_LNS_set_basic_block = 7, + DW_LNS_const_add_pc = 8, + DW_LNS_fixed_advance_pc = 9, + DW_LNS_set_prologue_end = 10, + DW_LNS_set_epilog_begin = 11 + }; + + +/* DWARF extended opcide encodings. */ +enum + { + DW_LNE_end_sequence = 1, + DW_LNE_set_address = 2, + DW_LNE_define_file = 3 + }; + + +/* DWARF macinfo type encodings. */ +enum + { + DW_MACINFO_define = 1, + DW_MACINFO_undef = 2, + DW_MACINFO_start_file = 3, + DW_MACINFO_end_file = 4, + DW_MACINFO_vendor_ext = 255 + }; + + +/* DWARF call frame instruction encodings. */ +enum + { + DW_CFA_advance_loc = 0x40, + DW_CFA_offset = 0x80, + DW_CFA_restore = 0xc0, + DW_CFA_extended = 0, + + DW_CFA_nop = 0x00, + DW_CFA_set_loc = 0x01, + DW_CFA_advance_loc1 = 0x02, + DW_CFA_advance_loc2 = 0x03, + DW_CFA_advance_loc4 = 0x04, + DW_CFA_offset_extended = 0x05, + DW_CFA_restore_extended = 0x06, + DW_CFA_undefined = 0x07, + DW_CFA_same_value = 0x08, + DW_CFA_register = 0x09, + DW_CFA_remember_state = 0x0a, + DW_CFA_restore_state = 0x0b, + DW_CFA_def_cfa = 0x0c, + DW_CFA_def_cfa_register = 0x0d, + DW_CFA_def_cfa_offset = 0x0e, + DW_CFA_def_cfa_expression = 0x0f, + DW_CFA_expression = 0x10, + DW_CFA_offset_extended_sf = 0x11, + DW_CFA_def_cfa_sf = 0x12, + DW_CFA_def_cfa_offset_sf = 0x13, + DW_CFA_low_user = 0x1c, + DW_CFA_MIPS_advance_loc8 = 0x1d, + DW_CFA_GNU_window_save = 0x2d, + DW_CFA_GNU_args_size = 0x2e, + DW_CFA_high_user = 0x3f + }; + + +/* DWARF XXX. */ +#define DW_ADDR_none 0 + +#endif /* dwarf.h */ diff --git a/fake-src/elflint.in b/fake-src/elflint.in new file mode 100644 index 0000000..d67af93 --- /dev/null +++ b/fake-src/elflint.in @@ -0,0 +1,4 @@ +#!/bin/bash +printf 'eu-elflint is only available in the full-featured elfutils package\n' 2>&1 +printf 'See /usr/share/doc/elfutils-@EUVERSION@/FULL' +exit 1 diff --git a/fake-src/nm b/fake-src/nm new file mode 100644 index 0000000..52a0674 --- /dev/null +++ b/fake-src/nm @@ -0,0 +1,2 @@ +#!/bin/bash +exec nm "$@" diff --git a/fake-src/readelf b/fake-src/readelf new file mode 100644 index 0000000..6fef6e2 --- /dev/null +++ b/fake-src/readelf @@ -0,0 +1,2 @@ +#!/bin/bash +exec readelf "$@" diff --git a/fake-src/size b/fake-src/size new file mode 100644 index 0000000..0b6b338 --- /dev/null +++ b/fake-src/size @@ -0,0 +1,2 @@ +#!/bin/bash +exec size "$@" diff --git a/fake-src/strip b/fake-src/strip new file mode 100644 index 0000000..0d1e739 --- /dev/null +++ b/fake-src/strip @@ -0,0 +1,20 @@ +#!/bin/bash +[ "$1" != "-f" -a "$2" != "-f" ] && exec strip "$@" +if [ "$1" = "-f" ]; then + opts= + debug="$2" + file="$3" + [ $# -ne 3 ] && exit 1 + file "$file" 2>/dev/null | grep -q relocatable && opts=-g +elif [ "$1" = "-g" ]; then + opts=-g + debug="$3" + file="$4" + [ $# -ne 4 ] && exit 1 +else + exit 1 +fi +set -e +objcopy --only-keep-debug "$file" "$debug" +strip $opts "$file" +objcopy --add-gnu-debuglink="$debug" "$file" diff --git a/lib/.cvsignore b/lib/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/lib/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/lib/ChangeLog b/lib/ChangeLog new file mode 100644 index 0000000..9ddc216 --- /dev/null +++ b/lib/ChangeLog @@ -0,0 +1,39 @@ +2005-05-03 Roland McGrath + + * crc32_file.c: New file. + * Makefile.am (libeu_a_SOURCES): Add it. + * system.h: Declare crc32_file. + +2005-04-30 Ulrich Drepper + + * Makefile.am: Use -ffunction-sections for xmalloc.c. + +2005-02-15 Ulrich Drepper + + * dynamicsizehash.c (lookup): Mark val parameter as possibly unused. + +2005-02-06 Ulrich Drepper + + * fixedsizehash.h: Mark unused parameters. Correct CLASS and + const order for fshash_find. + + * Makefile.am: Cleanup AM_CFLAGS handling. Add -Wunused -Wextra. + +2005-02-05 Ulrich Drepper + + * Makefile.am [MUDFLAP] (AM_CFLAGS): Add -fpic and -fmudflap. + +2004-01-17 Ulrich Drepper + + * Makefile.am: Support building with mudflap. + +2003-09-22 Ulrich Drepper + + * Makefile.am (AM_CFLAGS): Add -fpic. + + * Makefile.am (noinst_HEADERS): Add list.h. + * list.h: New file. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/lib/Makefile.am b/lib/Makefile.am new file mode 100644 index 0000000..facb563 --- /dev/null +++ b/lib/Makefile.am @@ -0,0 +1,35 @@ +## Process this file with automake to create Makefile.in +## +## Copyright (C) 1996-2001, 2002, 2004, 2005 Red Hat, Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, version 2. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software Foundation, +## Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +## +DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H +if MUDFLAP +AM_CFLAGS = -fmudflap +else +AM_CFLAGS = +endif +AM_CFLAGS += -fpic -Wall -Wshadow -Werror -Wunused -Wextra $($(*F)_CFLAGS) +INCLUDES = -I$(srcdir)/../libelf -I.. + +noinst_LIBRARIES = libeu.a + +libeu_a_SOURCES = xstrdup.c xstrndup.c xmalloc.c next_prime.c \ + crc32.c crc32_file.c + +noinst_HEADERS = fixedsizehash.h system.h dynamicsizehash.h list.h +EXTRA_DIST = dynamicsizehash.c + +xmalloc_CFLAGS = -ffunction-sections diff --git a/lib/crc32.c b/lib/crc32.c new file mode 100644 index 0000000..a198e8e --- /dev/null +++ b/lib/crc32.c @@ -0,0 +1,86 @@ +/* Copyright (C) 2002 Red Hat, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include +#include "system.h" + + +/* Table computed with Mark Adler's makecrc.c utility. */ +static const uint32_t crc32_table[256] = +{ + 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, + 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, + 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, + 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, + 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, + 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, + 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, + 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, + 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, + 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, + 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, + 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, + 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, + 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, + 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, + 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, + 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, + 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, + 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, + 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, + 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, + 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, + 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, + 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, + 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, + 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, + 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, + 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, + 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, + 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, + 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, + 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, + 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, + 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, + 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, + 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, + 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, + 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, + 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, + 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, + 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, + 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, + 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, + 0x2d02ef8d +}; + +uint32_t +crc32 (uint32_t crc, unsigned char *buf, size_t len) +{ + unsigned char *end; + + crc = ~crc; + for (end = buf + len; buf < end; ++buf) + crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); + return ~crc; +} diff --git a/lib/crc32_file.c b/lib/crc32_file.c new file mode 100644 index 0000000..e6d468b --- /dev/null +++ b/lib/crc32_file.c @@ -0,0 +1,59 @@ +#include "system.h" +#include +#include +#include +#include + +int +crc32_file (int fd, uint32_t *resp) +{ + unsigned char buffer[1024 * 8]; + uint32_t crc = 0; + off_t off = 0; + ssize_t count; + + struct stat st; + if (fstat (fd, &st) == 0) + { + /* Try mapping in the file data. */ + size_t mapsize = st.st_size; + void *mapped = mmap (NULL, mapsize, PROT_READ, MAP_PRIVATE, fd, 0); + if (mapped == MAP_FAILED && errno == ENOMEM) + { + const size_t pagesize = sysconf (_SC_PAGE_SIZE); + mapsize = ((mapsize / 2) + pagesize - 1) & -pagesize; + while (mapsize >= pagesize + && (mapped = mmap (NULL, mapsize, PROT_READ, MAP_PRIVATE, + fd, 0)) == MAP_FAILED && errno == ENOMEM) + mapsize /= 2; + } + if (mapped != MAP_FAILED) + { + do + { + if (st.st_size <= (off_t) mapsize) + { + *resp = crc32 (crc, mapped, st.st_size); + munmap (mapped, mapsize); + return 0; + } + crc = crc32 (crc, mapped, mapsize); + off += mapsize; + st.st_size -= mapsize; + } while (mmap (mapped, mapsize, PROT_READ, MAP_FIXED|MAP_PRIVATE, + fd, off) == mapped); + munmap (mapped, mapsize); + } + } + + while ((count = TEMP_FAILURE_RETRY (pread (fd, buffer, sizeof buffer, + off))) > 0) + { + off += count; + crc = crc32 (crc, buffer, count); + } + + *resp = crc; + + return count == 0 ? 0 : -1; +} diff --git a/lib/dynamicsizehash.c b/lib/dynamicsizehash.c new file mode 100644 index 0000000..6175963 --- /dev/null +++ b/lib/dynamicsizehash.c @@ -0,0 +1,316 @@ +/* Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include + +/* Before including this file the following macros must be defined: + + NAME name of the hash table structure. + TYPE data type of the hash table entries + COMPARE comparison function taking two pointers to TYPE objects + + The following macros if present select features: + + ITERATE iterating over the table entries is possible + REVERSE iterate in reverse order of insert + */ + + +static size_t +lookup (htab, hval, val) + NAME *htab; + unsigned long int hval; + TYPE val __attribute__ ((unused)); +{ + /* First hash function: simply take the modul but prevent zero. */ + size_t idx = 1 + hval % htab->size; + + if (htab->table[idx].hashval != 0) + { + unsigned long int hash; + + if (htab->table[idx].hashval == hval + && COMPARE (htab->table[idx].data, val) == 0) + return idx; + + /* Second hash function as suggested in [Knuth]. */ + hash = 1 + hval % (htab->size - 2); + + do + { + if (idx <= hash) + idx = htab->size + idx - hash; + else + idx -= hash; + + /* If entry is found use it. */ + if (htab->table[idx].hashval == hval + && COMPARE (htab->table[idx].data, val) == 0) + return idx; + } + while (htab->table[idx].hashval); + } + return idx; +} + + +static void +insert_entry_2 (NAME *htab, unsigned long int hval, size_t idx, TYPE data) +{ +#ifdef ITERATE + if (htab->table[idx].hashval == 0) + { +# ifdef REVERSE + htab->table[idx].next = htab->first; + htab->first = &htab->table[idx]; +# else + /* Add the new value to the list. */ + if (htab->first == NULL) + htab->first = htab->table[idx].next = &htab->table[idx]; + else + { + htab->table[idx].next = htab->first->next; + htab->first = htab->first->next = &htab->table[idx]; + } +# endif + } +#endif + + htab->table[idx].hashval = hval; + htab->table[idx].data = data; + + ++htab->filled; + if (100 * htab->filled > 90 * htab->size) + { + /* Table is filled more than 90%. Resize the table. */ +#ifdef ITERATE + __typeof__ (htab->first) first; +# ifndef REVERSE + __typeof__ (htab->first) runp; +# endif +#else + unsigned long int old_size = htab->size; +#endif +#define _TABLE(name) \ + name##_ent *table = htab->table +#define TABLE(name) _TABLE (name) + TABLE(NAME); + + htab->size = next_prime (htab->size * 2); + htab->filled = 0; +#ifdef ITERATE + first = htab->first; + htab->first = NULL; +#endif + htab->table = calloc ((1 + htab->size), sizeof (htab->table[0])); + if (htab->table == NULL) + { + /* We cannot enlarge the table. Live with what we got. This + might lead to an infinite loop at some point, though. */ + htab->table = table; + return; + } + + /* Add the old entries to the new table. When iteration is + supported we maintain the order. */ +#ifdef ITERATE +# ifdef REVERSE + while (first != NULL) + { + insert_entry_2 (htab, first->hashval, + lookup (htab, first->hashval, first->data), + first->data); + + first = first->next; + } +# else + assert (first != NULL); + runp = first = first->next; + do + insert_entry_2 (htab, runp->hashval, + lookup (htab, runp->hashval, runp->data), runp->data); + while ((runp = runp->next) != first); +# endif +#else + for (idx = 1; idx <= old_size; ++idx) + if (table[idx].hashval != 0) + insert_entry_2 (htab, table[idx].hashval, + lookup (htab, table[idx].hashval, table[idx].data), + table[idx].data); +#endif + + free (table); + } +} + + +int +#define INIT(name) _INIT (name) +#define _INIT(name) \ + name##_init +INIT(NAME) (htab, init_size) + NAME *htab; + unsigned long int init_size; +{ + /* We need the size to be a prime. */ + init_size = next_prime (init_size); + + /* Initialize the data structure. */ + htab->size = init_size; + htab->filled = 0; +#ifdef ITERATE + htab->first = NULL; +#endif + htab->table = (void *) calloc ((init_size + 1), sizeof (htab->table[0])); + if (htab->table == NULL) + return -1; + + return 0; +} + + +int +#define FREE(name) _FREE (name) +#define _FREE(name) \ + name##_free +FREE(NAME) (htab) + NAME *htab; +{ + free (htab->table); + return 0; +} + + +int +#define INSERT(name) _INSERT (name) +#define _INSERT(name) \ + name##_insert +INSERT(NAME) (htab, hval, data) + NAME *htab; + unsigned long int hval; + TYPE data; +{ + size_t idx; + + /* Make the hash value nonzero. */ + hval = hval ?: 1; + + idx = lookup (htab, hval, data); + + if (htab->table[idx].hashval != 0) + /* We don't want to overwrite the old value. */ + return -1; + + /* An empty bucket has been found. */ + insert_entry_2 (htab, hval, idx, data); + return 0; +} + + +#ifdef OVERWRITE +int +#define INSERT(name) _INSERT (name) +#define _INSERT(name) \ + name##_overwrite +INSERT(NAME) (htab, hval, data) + NAME *htab; + unsigned long int hval; + TYPE data; +{ + size_t idx; + + /* Make the hash value nonzero. */ + hval = hval ?: 1; + + idx = lookup (htab, hval, data); + + /* The correct bucket has been found. */ + insert_entry_2 (htab, hval, idx, data); + return 0; +} +#endif + + +TYPE +#define FIND(name) _FIND (name) +#define _FIND(name) \ + name##_find +FIND(NAME) (htab, hval, val) + NAME *htab; + unsigned long int hval; + TYPE val; +{ + size_t idx; + + /* Make the hash value nonzero. */ + hval = hval ?: 1; + + idx = lookup (htab, hval, val); + + if (htab->table[idx].hashval == 0) + return NULL; + + return htab->table[idx].data; +} + + +#ifdef ITERATE +# define ITERATEFCT(name) _ITERATEFCT (name) +# define _ITERATEFCT(name) \ + name##_iterate +TYPE +ITERATEFCT(NAME) (htab, ptr) + NAME *htab; + void **ptr; +{ + void *p = *ptr; + +# define TYPENAME(name) _TYPENAME (name) +# define _TYPENAME(name) name##_ent + +# ifdef REVERSE + if (p == NULL) + p = htab->first; + else + p = ((TYPENAME(NAME) *) p)->next; + + if (p == NULL) + { + *ptr = NULL; + return NULL; + } +# else + if (p == NULL) + { + if (htab->first == NULL) + return NULL; + p = htab->first->next; + } + else + { + if (p == htab->first) + return NULL; + + p = ((TYPENAME(NAME) *) p)->next; + } +# endif + + /* Prepare the next element. If possible this will pull the data + into the cache, for reading. */ + __builtin_prefetch (((TYPENAME(NAME) *) p)->next, 0, 2); + + return ((TYPENAME(NAME) *) (*ptr = p))->data; +} +#endif diff --git a/lib/dynamicsizehash.h b/lib/dynamicsizehash.h new file mode 100644 index 0000000..39a706f --- /dev/null +++ b/lib/dynamicsizehash.h @@ -0,0 +1,107 @@ +/* Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +/* Before including this file the following macros must be defined: + + NAME name of the hash table structure. + TYPE data type of the hash table entries + + The following macros if present select features: + + ITERATE iterating over the table entries is possible + */ + + +/* Optionally include an entry pointing to the first used entry. */ +#ifdef ITERATE +# define FIRST(name) name##_ent *first; +# define NEXT(name) struct name##_ent *next; +#else +# define FIRST(name) +# define NEXT(name) +#endif + + +/* Defined separately. */ +extern size_t next_prime (size_t seed); + + +/* Table entry type. */ +#define _DYNHASHENTTYPE(name) \ + typedef struct name##_ent \ + { \ + unsigned long int hashval; \ + TYPE data; \ + NEXT (name) \ + } name##_ent +#define DYNHASHENTTYPE(name) _DYNHASHENTTYPE (name) +DYNHASHENTTYPE (NAME); + + +/* Type of the dynamic hash table data structure. */ +#define _DYNHASHTYPE(name) \ +typedef struct \ +{ \ + unsigned long int size; \ + unsigned long int filled; \ + name##_ent *table; \ + FIRST (name) \ +} name +#define DYNHASHTYPE(name) _DYNHASHTYPE (name) +DYNHASHTYPE (NAME); + + + +#define _FUNCTIONS(name) \ +/* Initialize the hash table. */ \ +extern int name##_init (name *htab, unsigned long int init_size); \ + \ +/* Free resources allocated for hash table. */ \ +extern int name##_free (name *htab); \ + \ +/* Insert new entry. */ \ +extern int name##_insert (name *htab, unsigned long int hval, TYPE data); \ + \ +/* Insert new entry, possibly overwrite old entry. */ \ +extern int name##_overwrite (name *htab, unsigned long int hval, TYPE data); \ + \ +/* Find entry in hash table. */ \ +extern TYPE name##_find (name *htab, unsigned long int hval, TYPE val); +#define FUNCTIONS(name) _FUNCTIONS (name) +FUNCTIONS (NAME) + + +#ifdef ITERATE +# define _XFUNCTIONS(name) \ +/* Get next element in table. */ \ +extern TYPE name##_iterate (name *htab, void **ptr); +# define XFUNCTIONS(name) _XFUNCTIONS (name) +XFUNCTIONS (NAME) +#endif + +#ifndef NO_UNDEF +# undef DYNHASHENTTYPE +# undef DYNHASHTYPE +# undef FUNCTIONS +# undef _FUNCTIONS +# undef XFUNCTIONS +# undef _XFUNCTIONS +# undef NAME +# undef TYPE +# undef ITERATE +# undef COMPARE +# undef FIRST +# undef NEXT +#endif diff --git a/lib/fixedsizehash.h b/lib/fixedsizehash.h new file mode 100644 index 0000000..c1c607d --- /dev/null +++ b/lib/fixedsizehash.h @@ -0,0 +1,255 @@ +/* Fixed size hash table with internal linking. + Copyright (C) 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include +#include +#include +#include +#include + +#include + +#define CONCAT(t1,t2) __CONCAT (t1,t2) + +/* Before including this file the following macros must be defined: + + TYPE data type of the hash table entries + HASHFCT name of the hashing function to use + HASHTYPE type used for the hashing value + COMPARE comparison function taking two pointers to TYPE objects + CLASS can be defined to `static' to avoid exporting the functions + PREFIX prefix to be used for function and data type names + STORE_POINTER if defined the table stores a pointer and not an element + of type TYPE + INSERT_HASH if defined alternate insert function which takes a hash + value is defined + NO_FINI_FCT if defined the fini function is not defined +*/ + + +/* Defined separately. */ +extern size_t next_prime (size_t seed); + + +/* Set default values. */ +#ifndef HASHTYPE +# define HASHTYPE size_t +#endif + +#ifndef CLASS +# define CLASS +#endif + +#ifndef PREFIX +# define PREFIX +#endif + + +/* The data structure. */ +struct CONCAT(PREFIX,fshash) +{ + size_t nslots; + struct CONCAT(PREFIX,fshashent) + { + HASHTYPE hval; +#ifdef STORE_POINTER +# define ENTRYP(el) (el).entry + TYPE *entry; +#else +# define ENTRYP(el) &(el).entry + TYPE entry; +#endif + } table[0]; +}; + + +/* Constructor for the hashing table. */ +CLASS struct CONCAT(PREFIX,fshash) * +CONCAT(PREFIX,fshash_init) (size_t nelems) +{ + struct CONCAT(PREFIX,fshash) *result; + /* We choose a size for the hashing table 150% over the number of + entries. This will guarantee short medium search lengths. */ + const size_t max_size_t = ~((size_t) 0); + + if (nelems >= (max_size_t / 3) * 2) + { + errno = EINVAL; + return NULL; + } + + /* Adjust the size to be used for the hashing table. */ + nelems = next_prime (MAX ((nelems * 3) / 2, 10)); + + /* Allocate the data structure for the result. */ + result = (struct CONCAT(PREFIX,fshash) *) + xcalloc (sizeof (struct CONCAT(PREFIX,fshash)) + + (nelems + 1) * sizeof (struct CONCAT(PREFIX,fshashent)), 1); + if (result == NULL) + return NULL; + + result->nslots = nelems; + + return result; +} + + +#ifndef NO_FINI_FCT +CLASS void +CONCAT(PREFIX,fshash_fini) (struct CONCAT(PREFIX,fshash) *htab) +{ + free (htab); +} +#endif + + +static struct CONCAT(PREFIX,fshashent) * +CONCAT(PREFIX,fshash_lookup) (struct CONCAT(PREFIX,fshash) *htab, + HASHTYPE hval, TYPE *data) +{ + size_t idx = 1 + hval % htab->nslots; + + if (htab->table[idx].hval != 0) + { + HASHTYPE hash; + + /* See whether this is the same entry. */ + if (htab->table[idx].hval == hval + && COMPARE (data, ENTRYP (htab->table[idx])) == 0) + return &htab->table[idx]; + + /* Second hash function as suggested in [Knuth]. */ + hash = 1 + hval % (htab->nslots - 2); + + do + { + if (idx <= hash) + idx = htab->nslots + idx - hash; + else + idx -= hash; + + if (htab->table[idx].hval == hval + && COMPARE (data, ENTRYP(htab->table[idx])) == 0) + return &htab->table[idx]; + } + while (htab->table[idx].hval != 0); + } + + return &htab->table[idx]; +} + + +CLASS int +__attribute__ ((unused)) +CONCAT(PREFIX,fshash_insert) (struct CONCAT(PREFIX,fshash) *htab, + const char *str, + size_t len __attribute__ ((unused)), TYPE *data) +{ + HASHTYPE hval = HASHFCT (str, len ?: strlen (str)); + struct CONCAT(PREFIX,fshashent) *slot; + + slot = CONCAT(PREFIX,fshash_lookup) (htab, hval, data); + if (slot->hval != 0) + /* We don't want to overwrite the old value. */ + return -1; + + slot->hval = hval; +#ifdef STORE_POINTER + slot->entry = data; +#else + slot->entry = *data; +#endif + + return 0; +} + + +#ifdef INSERT_HASH +CLASS int +__attribute__ ((unused)) +CONCAT(PREFIX,fshash_insert_hash) (struct CONCAT(PREFIX,fshash) *htab, + HASHTYPE hval, TYPE *data) +{ + struct CONCAT(PREFIX,fshashent) *slot; + + slot = CONCAT(PREFIX,fshash_lookup) (htab, hval, data); + if (slot->hval != 0) + /* We don't want to overwrite the old value. */ + return -1; + + slot->hval = hval; +#ifdef STORE_POINTER + slot->entry = data; +#else + slot->entry = *data; +#endif + + return 0; +} +#endif + + +CLASS int +__attribute__ ((unused)) +CONCAT(PREFIX,fshash_overwrite) (struct CONCAT(PREFIX,fshash) *htab, + const char *str, + size_t len __attribute__ ((unused)), + TYPE *data) +{ + HASHTYPE hval = HASHFCT (str, len ?: strlen (str)); + struct CONCAT(PREFIX,fshashent) *slot; + + slot = CONCAT(PREFIX,fshash_lookup) (htab, hval, data); + slot->hval = hval; +#ifdef STORE_POINTER + slot->entry = data; +#else + slot->entry = *data; +#endif + + return 0; +} + + +CLASS const TYPE * +CONCAT(PREFIX,fshash_find) (const struct CONCAT(PREFIX,fshash) *htab, + const char *str, + size_t len __attribute__ ((unused)), TYPE *data) +{ + HASHTYPE hval = HASHFCT (str, len ?: strlen (str)); + struct CONCAT(PREFIX,fshashent) *slot; + + slot = CONCAT(PREFIX,fshash_lookup) ((struct CONCAT(PREFIX,fshash) *) htab, + hval, data); + if (slot->hval == 0) + /* Not found. */ + return NULL; + + return ENTRYP(*slot); +} + + +/* Unset the macros we expect. */ +#undef TYPE +#undef HASHFCT +#undef HASHTYPE +#undef COMPARE +#undef CLASS +#undef PREFIX +#undef INSERT_HASH +#undef STORE_POINTER +#undef NO_FINI_FCT diff --git a/lib/list.h b/lib/list.h new file mode 100644 index 0000000..c039a0b --- /dev/null +++ b/lib/list.h @@ -0,0 +1,85 @@ +/* Copyright (C) 2001, 2002, 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef LIST_H +#define LIST_H 1 + +/* Add element to the end of a circular, double-linked list. */ +#define CDBL_LIST_ADD_REAR(first, newp) \ + do { \ + __typeof (newp) _newp = (newp); \ + assert (_newp->next == NULL); \ + assert (_newp->previous == NULL); \ + if (unlikely ((first) == NULL)) \ + (first) = _newp->next = _newp->previous = _newp; \ + else \ + { \ + _newp->next = (first); \ + _newp->previous = (first)->previous; \ + _newp->previous->next = _newp->next->previous = _newp; \ + } \ + } while (0) + +/* Remove element from circular, double-linked list. */ +#define CDBL_LIST_DEL(first, elem) \ + do { \ + __typeof (elem) _elem = (elem); \ + /* Check whether the element is indeed on the list. */ \ + assert (first != NULL && _elem != NULL \ + && (first != elem \ + || ({ __typeof (elem) _runp = first->next; \ + while (_runp != first) \ + if (_runp == _elem) \ + break; \ + else \ + _runp = _runp->next; \ + _runp == _elem; }))); \ + if (unlikely (_elem->next == _elem)) \ + first = NULL; \ + else \ + { \ + _elem->next->previous = _elem->previous; \ + _elem->previous->next = _elem->next; \ + if (unlikely (first == _elem)) \ + first = _elem->next; \ + } \ + assert ((_elem->next = _elem->previous = NULL, 1)); \ + } while (0) + + +/* Add element to the front of a single-linked list. */ +#define SNGL_LIST_PUSH(first, newp) \ + do { \ + __typeof (newp) _newp = (newp); \ + assert (_newp->next == NULL); \ + _newp->next = first; \ + first = _newp; \ + } while (0) + + +/* Add element to the rear of a circular single-linked list. */ +#define CSNGL_LIST_ADD_REAR(first, newp) \ + do { \ + __typeof (newp) _newp = (newp); \ + assert (_newp->next == NULL); \ + if (unlikely ((first) == NULL)) \ + (first) = _newp->next = _newp; \ + else \ + { \ + _newp->next = (first)->next; \ + (first) = (first)->next = _newp; \ + } \ + } while (0) + + +#endif /* list.h */ diff --git a/lib/next_prime.c b/lib/next_prime.c new file mode 100644 index 0000000..5d60804 --- /dev/null +++ b/lib/next_prime.c @@ -0,0 +1,54 @@ +/* Determine prime number. + Copyright (C) 2000, 2002 Free Software Foundation, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include + + +/* Test whether CANDIDATE is a prime. */ +static int +is_prime (size_t candidate) +{ + /* No even number and none less than 10 will be passed here. */ + size_t divn = 3; + size_t sq = divn * divn; + + while (sq < candidate && candidate % divn != 0) + { + size_t old_sq = sq; + ++divn; + sq += 4 * divn; + if (sq < old_sq) + return 1; + ++divn; + } + + return candidate % divn != 0; +} + + +/* We need primes for the table size. */ +size_t +next_prime (size_t seed) +{ + /* Make it definitely odd. */ + seed |= 1; + + while (!is_prime (seed)) + seed += 2; + + return seed; +} diff --git a/lib/system.h b/lib/system.h new file mode 100644 index 0000000..e29c2db --- /dev/null +++ b/lib/system.h @@ -0,0 +1,40 @@ +/* Copyright (C) 2000, 2002, 2004, 2005 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef LIB_SYSTEM_H +#define LIB_SYSTEM_H 1 + +#include +#include + +extern void *xmalloc (size_t) __attribute__ ((__malloc__)); +extern void *xcalloc (size_t, size_t) __attribute__ ((__malloc__)); +extern void *xrealloc (void *, size_t) __attribute__ ((__malloc__)); + +extern char *xstrdup (const char *) __attribute__ ((__malloc__)); +extern char *xstrndup (const char *, size_t) __attribute__ ((__malloc__)); + + +extern uint32_t crc32 (uint32_t crc, unsigned char *buf, size_t len); +extern int crc32_file (int fd, uint32_t *resp); + +/* A special gettext function we use if the strings are too short. */ +#define sgettext(Str) \ + ({ const char *__res = strrchr (gettext (Str), '|'); \ + __res ? __res + 1 : Str; }) + +#define gettext_noop(Str) Str + +#endif /* system.h */ diff --git a/lib/xmalloc.c b/lib/xmalloc.c new file mode 100644 index 0000000..0934e64 --- /dev/null +++ b/lib/xmalloc.c @@ -0,0 +1,68 @@ +/* Copyright (C) 2000, 2002 Free Software Foundation, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include "system.h" + +#ifndef _ +# define _(str) gettext (str) +#endif + + +/* Allocate N bytes of memory dynamically, with error checking. */ +void * +xmalloc (n) + size_t n; +{ + void *p; + + p = malloc (n); + if (p == NULL) + error (EXIT_FAILURE, 0, _("memory exhausted")); + return p; +} + + +/* Allocate memory for N elements of S bytes, with error checking. */ +void * +xcalloc (n, s) + size_t n, s; +{ + void *p; + + p = calloc (n, s); + if (p == NULL) + error (EXIT_FAILURE, 0, _("memory exhausted")); + return p; +} + + +/* Change the size of an allocated block of memory P to N bytes, + with error checking. */ +void * +xrealloc (p, n) + void *p; + size_t n; +{ + p = realloc (p, n); + if (p == NULL) + error (EXIT_FAILURE, 0, _("memory exhausted")); + return p; +} diff --git a/lib/xstrdup.c b/lib/xstrdup.c new file mode 100644 index 0000000..ad70a63 --- /dev/null +++ b/lib/xstrdup.c @@ -0,0 +1,27 @@ +/* Copyright (C) 2000, 2002 Free Software Foundation, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "system.h" + + +/* Return a newly allocated copy of STRING. */ +char * +xstrdup (string) + const char *string; +{ + return strcpy (xmalloc (strlen (string) + 1), string); +} diff --git a/lib/xstrndup.c b/lib/xstrndup.c new file mode 100644 index 0000000..946f361 --- /dev/null +++ b/lib/xstrndup.c @@ -0,0 +1,31 @@ +/* Copyright (C) 2000, 2002 Free Software Foundation, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "system.h" + + +/* Return a newly allocated copy of STRING. */ +char * +xstrndup (string, n) + const char *string; + size_t n; +{ + char *res; + size_t len = strnlen (string, n); + *((char *) mempcpy ((res = xmalloc (len + 1)), string, len)) = '\0'; + return res; +} diff --git a/libasm/.cvsignore b/libasm/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/libasm/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/libasm/ChangeLog b/libasm/ChangeLog new file mode 100644 index 0000000..8b7b44d --- /dev/null +++ b/libasm/ChangeLog @@ -0,0 +1,52 @@ +2005-02-15 Ulrich Drepper + + * Makefile (AM_CFLAGS): Add -Wunused -Wextra -Wformat=2. + + * asm_end.c (text_end): Mark parameter as possibly unused. + +2005-02-06 Ulrich Drepper + + * Makefile.am: Remove lint handling. + +2005-02-05 Ulrich Drepper + + * asm_end.c (binary_end): Don't terminate with error() in case + something goes wrong. + + * Makefile.am: Check for text relocations in constructed DSO. + + * Makefile.am (AM_CFLAGS): More warnings. Add -fmudflap for MUDFLAP. + + * asm_end.c (binary_end): Remove shadowing variables. + Little cleanups. + + * asm_newsym.c: Allocate memory for the string parameter. + +2005-02-04 Ulrich Drepper + + * asm_newscn_ingrp.c (asm_newscn_ingrp): Use INTUSE to reference + asm_newscn. + +2004-09-25 Ulrich Drepper + + * asm_error.c: Make compile with gcc 4.0. + +2004-01-20 Ulrich Drepper + + * Makefile.am: Support building with mudflap. + +2004-01-18 Ulrich Drepper + + * libasmP.h (_): Use elfutils domain. + +2004-01-17 Ulrich Drepper + + * Makefile.am: Support building with mudflap. + +2003-08-13 Ulrich Drepper + + * Makefile.in: Depend on libebl.a, not libebl.so. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/libasm/Makefile.am b/libasm/Makefile.am new file mode 100644 index 0000000..34b19d2 --- /dev/null +++ b/libasm/Makefile.am @@ -0,0 +1,86 @@ +## Process this file with automake to create Makefile.in +## +## Copyright (C) 2002, 2004, 2005 Red Hat, Inc. +## +## This program is Open Source software; you can redistribute it and/or +## modify it under the terms of the Open Software License version 1.0 as +## published by the Open Source Initiative. +## +## You should have received a copy of the Open Software License along +## with this program; if not, you may obtain a copy of the Open Software +## License version 1.0 from http://www.opensource.org/licenses/osl.php or +## by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +## 3001 King Ranch Road, Ukiah, CA 95482. +## +DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H +if MUDFLAP +AM_CFLAGS = -fmudflap +else +AM_CFLAGS = +endif +AM_CFLAGS += -Wall -Wshadow -Werror -Wunused -Wextra -Wformat=2 +INCLUDES = -I. -I$(srcdir) -I.. -I$(top_srcdir)/libelf -I$(top_srcdir)/libebl \ + -I$(top_srcdir)/lib +GCC_INCLUDE = -I$(shell $(CC) -print-file-name=include) +VERSION = 1 + +lib_LIBRARIES = libasm.a +if !MUDFLAP +noinst_LIBRARIES = libasm_pic.a +noinst_PROGRAMS = $(noinst_LIBRARIES:_pic.a=.so) +endif +euincludedir = ${includedir}/elfutils +euinclude_HEADERS = libasm.h + +libasm_a_SOURCES = asm_begin.c asm_abort.c asm_end.c asm_error.c \ + asm_getelf.c asm_newscn.c asm_newscn_ingrp.c \ + asm_newsubscn.c asm_newsym.c asm_newcomsym.c \ + asm_newabssym.c \ + asm_newscngrp.c asm_scngrp_newsignature.c \ + asm_fill.c asm_align.c asm_addstrz.c \ + asm_addint8.c asm_adduint8.c \ + asm_addint16.c asm_adduint16.c \ + asm_addint32.c asm_adduint32.c \ + asm_addint64.c asm_adduint64.c \ + asm_adduleb128.c asm_addsleb128.c \ + symbolhash.c + +if !MUDFLAP +libasm_pic_a_SOURCES = +am_libasm_pic_a_OBJECTS = $(libasm_a_SOURCES:.c=.os) + +libasm_so_SOURCES = +libasm.so: libasm_pic.a libasm.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libasm.map,--no-undefined \ + -Wl,--soname,$@.$(VERSION) \ + ../libebl/libebl.a ../libelf/libelf.so + if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi + ln -fs $@ $@.$(VERSION) + + +%.os: %.c %.o + if $(COMPILE) -c -o $@ -fpic -DPIC -DSHARED -MT $@ -MD -MP \ + -MF "$(DEPDIR)/$*.Tpo" `test -f '$<' || echo '$(srcdir)/'`$<; \ + then cat "$(DEPDIR)/$*.Tpo" >> "$(DEPDIR)/$*.Po"; \ + rm -f "$(DEPDIR)/$*.Tpo"; \ + else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \ + fi + +install: install-am libasm.so + $(mkinstalldirs) $(DESTDIR)$(libdir) + $(INSTALL_PROGRAM) libasm.so $(DESTDIR)$(libdir)/libasm-$(PACKAGE_VERSION).so + ln -fs libasm-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libasm.so.$(VERSION) + ln -fs libasm.so.$(VERSION) $(DESTDIR)$(libdir)/libasm.so + +uninstall: uninstall-am + rm -f $(DESTDIR)$(libdir)/libasm-$(PACKAGE_VERSION).so + rm -f $(DESTDIR)$(libdir)/libasm.so.$(VERSION) + rm -f $(DESTDIR)$(libdir)/libasm.so + rmdir --ignore-fail-on-non-empty $(DESTDIR)$(includedir)/elfutils +endif + +noinst_HEADERS = libasmP.h symbolhash.h +EXTRA_DIST = libasm.map + +CLEANFILES = $(am_libasm_pic_a_OBJECTS) diff --git a/libasm/asm_abort.c b/libasm/asm_abort.c new file mode 100644 index 0000000..f35757c --- /dev/null +++ b/libasm/asm_abort.c @@ -0,0 +1,45 @@ +/* Abort operations on the assembler context, free all resources. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include +#include + + +int +asm_abort (ctx) + AsmCtx_t *ctx; +{ + if (ctx == NULL) + /* Something went wrong earlier. */ + return -1; + + if (likely (! ctx->textp)) + /* First free the ELF file. We don't care about the result. */ + (void) elf_end (ctx->out.elf); + + /* Now close the temporary file and remove it. */ + (void) unlink (ctx->tmp_fname); + + /* Free the resources. */ + __libasm_finictx (ctx); + + return 0; +} diff --git a/libasm/asm_addint16.c b/libasm/asm_addint16.c new file mode 100644 index 0000000..9812517 --- /dev/null +++ b/libasm/asm_addint16.c @@ -0,0 +1,17 @@ +/* Add integer to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#define SIZE 16 + +#include "asm_addint8.c" diff --git a/libasm/asm_addint32.c b/libasm/asm_addint32.c new file mode 100644 index 0000000..05ac3d2 --- /dev/null +++ b/libasm/asm_addint32.c @@ -0,0 +1,17 @@ +/* Add integer to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#define SIZE 32 + +#include "asm_addint8.c" diff --git a/libasm/asm_addint64.c b/libasm/asm_addint64.c new file mode 100644 index 0000000..f9d93f8 --- /dev/null +++ b/libasm/asm_addint64.c @@ -0,0 +1,17 @@ +/* Add integer to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#define SIZE 64 + +#include "asm_addint8.c" diff --git a/libasm/asm_addint8.c b/libasm/asm_addint8.c new file mode 100644 index 0000000..35d9bf5 --- /dev/null +++ b/libasm/asm_addint8.c @@ -0,0 +1,105 @@ +/* Add integer to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include + +#ifndef SIZE +# define SIZE 8 +#endif + +#define FCT(size) _FCT(size) +#define _FCT(size) asm_addint##size +#define TYPE(size) _TYPE(size) +#define _TYPE(size) int##size##_t +#define BSWAP(size) _BSWAP(size) +#define _BSWAP(size) bswap_##size + + +int +FCT(SIZE) (asmscn, num) + AsmScn_t *asmscn; + TYPE(SIZE) num; +{ + if (asmscn == NULL) + return -1; + + if (asmscn->type == SHT_NOBITS && unlikely (num != 0)) + { + __libasm_seterrno (ASM_E_TYPE); + return -1; + } + + if (unlikely (asmscn->ctx->textp)) + { + // XXX Needs to use backend specified pseudo-ops + if (SIZE == 8) + printf ("\t.byte\t%" PRId8 "\n", (int8_t) num); + else if (SIZE == 16) + printf ("\t.value\t%" PRId16 "\n", (int16_t) num); + else if (SIZE == 32) + printf ("\t.long\t%" PRId32 "\n", (int32_t) num); + else + { + // XXX This is not necessary for 64-bit machines + bool is_leb = (elf_getident (asmscn->ctx->out.elf, NULL)[EI_DATA] + == ELFDATA2LSB); + + printf ("\t.long\t%" PRId32 "\n\t.long\t%" PRId32 "\n", + (int32_t) (is_leb + ? num % 0x100000000ll : num / 0x100000000ll), + (int32_t) (is_leb + ? num / 0x100000000ll : num % 0x100000000ll)); + } + } + else + { +#if SIZE > 8 + bool is_leb = (elf_getident (asmscn->ctx->out.elf, NULL)[EI_DATA] + == ELFDATA2LSB); +#endif + TYPE(SIZE) var = num; + + /* Make sure we have enough room. */ + if (__libasm_ensure_section_space (asmscn, SIZE / 8) != 0) + return -1; + +#if SIZE > 8 + if ((BYTE_ORDER == LITTLE_ENDIAN && !is_leb) + || (BYTE_ORDER == BIG_ENDIAN && is_leb)) + var = BSWAP(SIZE) (var); +#endif + + /* Copy the variable value. */ + if (likely (asmscn->type == SHT_NOBITS)) + memcpy (&asmscn->content->data[asmscn->content->len], &var, SIZE / 8); + + /* Adjust the pointer in the data buffer. */ + asmscn->content->len += SIZE / 8; + + /* Increment the offset in the (sub)section. */ + asmscn->offset += SIZE / 8; + } + + return 0; +} +INTDEF(FCT(SIZE)) diff --git a/libasm/asm_addsleb128.c b/libasm/asm_addsleb128.c new file mode 100644 index 0000000..0661b36 --- /dev/null +++ b/libasm/asm_addsleb128.c @@ -0,0 +1,84 @@ +/* Add signed little endian base 128 integer to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +int +asm_addsleb128 (asmscn, num) + AsmScn_t *asmscn; + int32_t num; +{ + if (asmscn == NULL) + return -1; + + if (asmscn->type == SHT_NOBITS && unlikely (num != 0)) + { + __libasm_seterrno (ASM_E_TYPE); + return -1; + } + + if (unlikely (asmscn->ctx->textp)) + printf ("\t.sleb128\t%" PRId32 "\n", num); + else + { + char tmpbuf[(sizeof (num) * 8 + 6) / 7]; + char *dest = tmpbuf; + uint32_t byte; + int32_t endval = num >> 31; + + if (num == 0) + byte = 0; + else + while (1) + { + byte = num & 0x7f; + + num >>= 7; + if (num == endval) + /* This is the last byte. */ + break; + + *dest++ = byte | 0x80; + } + + *dest++ = byte; + + /* Number of bytes produced. */ + size_t nbytes = dest - tmpbuf; + + /* Make sure we have enough room. */ + if (__libasm_ensure_section_space (asmscn, nbytes) != 0) + return -1; + + /* Copy the bytes. */ + if (likely (asmscn->type != SHT_NOBITS)) + memcpy (&asmscn->content->data[asmscn->content->len], tmpbuf, nbytes); + + /* Adjust the pointer in the data buffer. */ + asmscn->content->len += nbytes; + + /* Increment the offset in the (sub)section. */ + asmscn->offset += nbytes; + } + + return 0; +} diff --git a/libasm/asm_addstrz.c b/libasm/asm_addstrz.c new file mode 100644 index 0000000..e183b0b --- /dev/null +++ b/libasm/asm_addstrz.c @@ -0,0 +1,113 @@ +/* Add string to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include + + +/* Add zero terminated string STR of size LEN to (sub)section ASMSCN. */ +int +asm_addstrz (asmscn, str, len) + AsmScn_t *asmscn; + const char *str; + size_t len; +{ + if (asmscn == NULL) + return -1; + + if (unlikely (asmscn->type == SHT_NOBITS)) + { + if (len == 0) + { + if (str[0] != '\0') + { + __libasm_seterrno (ASM_E_TYPE); + return -1; + } + } + else + { + size_t cnt; + + for (cnt = 0; cnt < len; ++cnt) + if (str[cnt] != '\0') + { + __libasm_seterrno (ASM_E_TYPE); + return -1; + } + } + } + + if (len == 0) + len = strlen (str) + 1; + + if (unlikely (asmscn->ctx->textp)) + { + bool nextline = true; + + do + { + if (nextline) + { + fputs ("\t.string\t\"", asmscn->ctx->out.file); + nextline = false; + } + + if (*str == '\0') + fputs ("\\000", asmscn->ctx->out.file); + else if (! isascii (*str)) + fprintf (asmscn->ctx->out.file, "\\%03o", + (unsigned int) *((unsigned char *)str)); + else if (*str == '\\') + fputs ("\\\\", asmscn->ctx->out.file); + else if (*str == '\n') + { + fputs ("\\n\"", asmscn->ctx->out.file); + nextline = true; + } + else + fputc (*str, asmscn->ctx->out.file); + + ++str; + } + while (--len > 0 && (len > 1 || *str != '\0')); + + if (! nextline) + fputs ("\"\n", asmscn->ctx->out.file); + } + else + { + /* Make sure there is enough room. */ + if (__libasm_ensure_section_space (asmscn, len) != 0) + return -1; + + /* Copy the string. */ + memcpy (&asmscn->content->data[asmscn->content->len], str, len); + + /* Adjust the pointer in the data buffer. */ + asmscn->content->len += len; + + /* Increment the offset in the (sub)section. */ + asmscn->offset += len; + } + + return 0; +} diff --git a/libasm/asm_adduint16.c b/libasm/asm_adduint16.c new file mode 100644 index 0000000..8c1e698 --- /dev/null +++ b/libasm/asm_adduint16.c @@ -0,0 +1,17 @@ +/* Add unsigned integer to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#define SIZE 16 + +#include "asm_adduint8.c" diff --git a/libasm/asm_adduint32.c b/libasm/asm_adduint32.c new file mode 100644 index 0000000..a225795 --- /dev/null +++ b/libasm/asm_adduint32.c @@ -0,0 +1,17 @@ +/* Add unsigned integer to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#define SIZE 32 + +#include "asm_adduint8.c" diff --git a/libasm/asm_adduint64.c b/libasm/asm_adduint64.c new file mode 100644 index 0000000..edda4d3 --- /dev/null +++ b/libasm/asm_adduint64.c @@ -0,0 +1,17 @@ +/* Add unsigned integer to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#define SIZE 64 + +#include "asm_adduint8.c" diff --git a/libasm/asm_adduint8.c b/libasm/asm_adduint8.c new file mode 100644 index 0000000..7bfb341 --- /dev/null +++ b/libasm/asm_adduint8.c @@ -0,0 +1,41 @@ +/* Add unsigned integer to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#ifndef SIZE +# define SIZE 8 +#endif + +#define UFCT(size) _UFCT(size) +#define _UFCT(size) asm_adduint##size +#define FCT(size) _FCT(size) +#define _FCT(size) asm_addint##size +#define UTYPE(size) _UTYPE(size) +#define _UTYPE(size) uint##size##_t +#define TYPE(size) _TYPE(size) +#define _TYPE(size) int##size##_t + + +int +UFCT(SIZE) (asmscn, num) + AsmScn_t *asmscn; + UTYPE(SIZE) num; +{ + return INTUSE(FCT(SIZE)) (asmscn, (TYPE(SIZE)) num); +} diff --git a/libasm/asm_adduleb128.c b/libasm/asm_adduleb128.c new file mode 100644 index 0000000..521d265 --- /dev/null +++ b/libasm/asm_adduleb128.c @@ -0,0 +1,80 @@ +/* Add integer to a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libasmP.h" + + +int +asm_adduleb128 (asmscn, num) + AsmScn_t *asmscn; + uint32_t num; +{ + if (asmscn == NULL) + return -1; + + if (asmscn->type == SHT_NOBITS && unlikely (num != 0)) + { + __libasm_seterrno (ASM_E_TYPE); + return -1; + } + + if (unlikely (asmscn->ctx->textp)) + printf ("\t.uleb128\t%" PRIu32 "\n", num); + else + { + char tmpbuf[(sizeof (num) * 8 + 6) / 7]; + char *dest = tmpbuf; + uint32_t byte; + + while (1) + { + byte = num & 0x7f; + + num >>= 7; + if (num == 0) + /* This is the last byte. */ + break; + + *dest++ = byte | 0x80; + } + + *dest++ = byte; + + /* Number of bytes produced. */ + size_t nbytes = dest - tmpbuf; + + /* Make sure we have enough room. */ + if (__libasm_ensure_section_space (asmscn, nbytes) != 0) + return -1; + + /* Copy the bytes. */ + if (likely (asmscn->type != SHT_NOBITS)) + memcpy (&asmscn->content->data[asmscn->content->len], tmpbuf, nbytes); + + /* Adjust the pointer in the data buffer. */ + asmscn->content->len += nbytes; + + /* Increment the offset in the (sub)section. */ + asmscn->offset += nbytes; + } + + return 0; +} diff --git a/libasm/asm_align.c b/libasm/asm_align.c new file mode 100644 index 0000000..e735092 --- /dev/null +++ b/libasm/asm_align.c @@ -0,0 +1,147 @@ +/* Align section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include +#include + + +int +asm_align (asmscn, value) + AsmScn_t *asmscn; + GElf_Word value; +{ + if (asmscn == NULL) + /* An earlier error. */ + return -1; + + /* The alignment value must be a power of two. */ + if (unlikely (! powerof2 (value))) + { + __libasm_seterrno (ASM_E_INVALID); + return -1; + } + + rwlock_wrlock (asmscn->ctx->lock); + + int result = 0; + + /* Fillbytes necessary? */ + if ((asmscn->offset & (value - 1)) != 0) + { + /* Add fillbytes. */ + size_t cnt; + size_t byteptr; + + cnt = value - (asmscn->offset & (value - 1)); + + /* Ensure there is enough room to add the fill bytes. */ + result = __libasm_ensure_section_space (asmscn, cnt); + if (result != 0) + goto out; + + /* Fill in the bytes. We align the pattern according to the + current offset. */ + byteptr = asmscn->offset % asmscn->pattern->len; + + /* Update the total size. */ + asmscn->offset += cnt; + + do + { + asmscn->content->data[asmscn->content->len++] + = asmscn->pattern->bytes[byteptr++]; + + if (byteptr == asmscn->pattern->len) + byteptr = 0; + } + while (--cnt > 0); + } + + /* Remember the maximum alignment for this subsection. */ + if (asmscn->max_align < value) + { + asmscn->max_align = value; + + /* Update the parent as well (if it exists). */ + if (asmscn->subsection_id != 0) + { + rwlock_wrlock (asmscn->data.up->ctx->lock); + + if (asmscn->data.up->max_align < value) + asmscn->data.up->max_align = value; + + rwlock_unlock (asmscn->data.up->ctx->lock); + } + } + + out: + rwlock_unlock (asmscn->ctx->lock); + + return result; +} + + +/* Ensure there are at least LEN bytes available in the output buffer + for ASMSCN. */ +int +__libasm_ensure_section_space (asmscn, len) + AsmScn_t *asmscn; + size_t len; +{ + /* The blocks with the section content are kept in a circular + single-linked list. */ + size_t size; + + if (asmscn->content == NULL) + { + /* This is the first block. */ + size = MAX (2 * len, 960); + + asmscn->content = (struct AsmData *) malloc (sizeof (struct AsmData) + + size); + if (asmscn->content == NULL) + return -1; + + asmscn->content->next = asmscn->content; + } + else + { + struct AsmData *newp; + + if (asmscn->content->maxlen - asmscn->content->len >= len) + /* Nothing to do, there is enough space. */ + return 0; + + size = MAX (2 *len, MIN (32768, 2 * asmscn->offset)); + + newp = (struct AsmData *) malloc (sizeof (struct AsmData) + size); + if (newp == NULL) + return -1; + + newp->next = asmscn->content->next; + asmscn->content = asmscn->content->next = newp; + } + + asmscn->content->len = 0; + asmscn->content->maxlen = size; + + return 0; +} diff --git a/libasm/asm_begin.c b/libasm/asm_begin.c new file mode 100644 index 0000000..3896f78 --- /dev/null +++ b/libasm/asm_begin.c @@ -0,0 +1,151 @@ +/* Create descriptor for assembling. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include + +#include +#include "libasmP.h" +#include + + +static AsmCtx_t * +prepare_text_output (AsmCtx_t *result) +{ + return result; +} + + +static AsmCtx_t * +prepare_binary_output (AsmCtx_t *result, int machine, int klass, int data) +{ + GElf_Ehdr *ehdr; + GElf_Ehdr ehdr_mem; + + /* Create the ELF descriptor for the file. */ + result->out.elf = elf_begin (result->fd, ELF_C_WRITE_MMAP, NULL); + if (result->out.elf == NULL) + { + err_libelf: + unlink (result->tmp_fname); + close (result->fd); + free (result); + __libasm_seterrno (ASM_E_LIBELF); + return NULL; + } + + /* Create the ELF header for the output file. */ + if (gelf_newehdr (result->out.elf, klass) == 0) + goto err_libelf; + + ehdr = gelf_getehdr (result->out.elf, &ehdr_mem); + /* If this failed we are in trouble. */ + assert (ehdr != NULL); + + /* We create an object file. */ + ehdr->e_type = ET_REL; + /* Set the ELF version. */ + ehdr->e_version = EV_CURRENT; + + /* Use the machine value the user provided. */ + ehdr->e_machine = machine; + /* Same for the class and endianness. */ + ehdr->e_ident[EI_CLASS] = klass; + ehdr->e_ident[EI_DATA] = data; + + memcpy (&ehdr->e_ident[EI_MAG0], ELFMAG, SELFMAG); + + /* Write the ELF header information back. */ + (void) gelf_update_ehdr (result->out.elf, ehdr); + + /* No section so far. */ + result->section_list = NULL; + + /* Initialize the hash table. */ + asm_symbol_tab_init (&result->symbol_tab, 67); + result->nsymbol_tab = 0; + /* And the string tables. */ + result->section_strtab = ebl_strtabinit (true); + result->symbol_strtab = ebl_strtabinit (true); + + /* We have no section groups so far. */ + result->groups = NULL; + result->ngroups = 0; + + return result; +} + + +AsmCtx_t * +asm_begin (fname, textp, machine, klass, data) + const char *fname; + bool textp; + int machine; + int klass; + int data; +{ + size_t fname_len = strlen (fname); + AsmCtx_t *result; + + + /* First order of business: find the appropriate backend. If it + does not exist we don't have to look further. */ + // XXX + + /* Create the file descriptor. We do not generate the output file + right away. Instead we create a temporary file in the same + directory which, if everything goes alright, will replace a + possibly existing file with the given name. */ + result = (AsmCtx_t *) malloc (sizeof (AsmCtx_t) + 2 * fname_len + 9); + if (result == NULL) + return NULL; + + /* Initialize the lock. */ + rwlock_init (result->lock); + + /* Create the name of the temporary file. */ + result->fname = stpcpy (mempcpy (result->tmp_fname, fname, fname_len), + ".XXXXXX") + 1; + memcpy (result->fname, fname, fname_len + 1); + + /* Create the temporary file. */ + result->fd = mkstemp (result->tmp_fname); + if (result->fd == -1) + { + int save_errno = errno; + free (result); + __libasm_seterrno (ASM_E_CANNOT_CREATE); + errno = save_errno; + return NULL; + } + + /* Initialize the counter for temporary symbols. */ + result->tempsym_count = 0; + + /* Now we differentiate between textual and binary output. */ + result->textp = textp; + if (textp) + result = prepare_text_output (result); + else + result = prepare_binary_output (result, machine, klass, data); + + return result; +} diff --git a/libasm/asm_end.c b/libasm/asm_end.c new file mode 100644 index 0000000..74f01f0 --- /dev/null +++ b/libasm/asm_end.c @@ -0,0 +1,593 @@ +/* Finalize operations on the assembler context, free all resources. + Copyright (C) 2002, 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + + +static int +text_end (AsmCtx_t *ctx __attribute__ ((unused))) +{ + // XXX Does anything have to be done? + return 0; +} + + +static int +binary_end (AsmCtx_t *ctx) +{ + void *symtab = NULL; + struct Ebl_Strent *symscn_strent = NULL; + struct Ebl_Strent *strscn_strent = NULL; + struct Ebl_Strent *xndxscn_strent = NULL; + Elf_Scn *shstrscn; + struct Ebl_Strent *shstrscn_strent; + size_t shstrscnndx; + size_t symscnndx = 0; + size_t strscnndx = 0; + size_t xndxscnndx = 0; + Elf_Data *data; + Elf_Data *shstrtabdata; + Elf_Data *strtabdata = NULL; + Elf_Data *xndxdata = NULL; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + AsmScn_t *asmscn; + int result = 0; + + /* Iterate over the created sections and compute the offsets of the + various subsections and fill in the content. */ + for (asmscn = ctx->section_list; asmscn != NULL; asmscn = asmscn->allnext) + { +#if 0 + Elf_Scn *scn = elf_getscn (ctx->out.elf, asmscn->data.main.scnndx); +#else + Elf_Scn *scn = asmscn->data.main.scn; +#endif + off_t offset = 0; + AsmScn_t *asmsubscn = asmscn; + + do + { + struct AsmData *content = asmsubscn->content; + bool first = true; + + offset = ((offset + asmsubscn->max_align - 1) + & ~(asmsubscn->max_align - 1)); + + /* Update the offset for this subsection. This field now + stores the offset of the first by in this subsection. */ + asmsubscn->offset = offset; + + /* Note that the content list is circular. */ + if (content != NULL) + do + { + Elf_Data *newdata = elf_newdata (scn); + + if (newdata == NULL) + { + __libasm_seterrno (ASM_E_LIBELF); + return -1; + } + + newdata->d_buf = content->data; + newdata->d_type = ELF_T_BYTE; + newdata->d_size = content->len; + newdata->d_off = offset; + newdata->d_align = first ? asmsubscn->max_align : 1; + + offset += content->len; + } + while ((content = content->next) != asmsubscn->content); + } + while ((asmsubscn = asmsubscn->subnext) != NULL); + } + + + /* Create the symbol table if necessary. */ + if (ctx->nsymbol_tab > 0) + { + /* Create the symbol table and string table section names. */ + symscn_strent = ebl_strtabadd (ctx->section_strtab, ".symtab", 8); + strscn_strent = ebl_strtabadd (ctx->section_strtab, ".strtab", 8); + + /* Create the symbol string table section. */ + Elf_Scn *strscn = elf_newscn (ctx->out.elf); + strtabdata = elf_newdata (strscn); + shdr = gelf_getshdr (strscn, &shdr_mem); + if (strtabdata == NULL || shdr == NULL) + { + __libasm_seterrno (ASM_E_LIBELF); + return -1; + } + strscnndx = elf_ndxscn (strscn); + + ebl_strtabfinalize (ctx->symbol_strtab, strtabdata); + + shdr->sh_type = SHT_STRTAB; + assert (shdr->sh_entsize == 0); + + (void) gelf_update_shdr (strscn, shdr); + + /* Create the symbol table section. */ + Elf_Scn *symscn = elf_newscn (ctx->out.elf); + data = elf_newdata (symscn); + shdr = gelf_getshdr (symscn, &shdr_mem); + if (data == NULL || shdr == NULL) + { + __libasm_seterrno (ASM_E_LIBELF); + return -1; + } + symscnndx = elf_ndxscn (symscn); + + /* We know how many symbols there will be in the symbol table. */ + data->d_size = gelf_fsize (ctx->out.elf, ELF_T_SYM, + ctx->nsymbol_tab + 1, EV_CURRENT); + symtab = malloc (data->d_size); + if (symtab == NULL) + return -1; + data->d_buf = symtab; + data->d_type = ELF_T_SYM; + data->d_off = 0; + + /* Clear the first entry. */ + GElf_Sym syment; + memset (&syment, '\0', sizeof (syment)); + (void) gelf_update_sym (data, 0, &syment); + + /* Iterate over the symbol table. */ + void *runp = NULL; + int ptr_local = 1; /* Start with index 1; zero remains unused. */ + int ptr_nonlocal = ctx->nsymbol_tab; + uint32_t *xshndx = NULL; + AsmSym_t *sym; + while ((sym = asm_symbol_tab_iterate (&ctx->symbol_tab, &runp)) != NULL) + if (asm_emit_symbol_p (ebl_string (sym->strent))) + { + assert (ptr_local <= ptr_nonlocal); + + syment.st_name = ebl_strtaboffset (sym->strent); + syment.st_info = GELF_ST_INFO (sym->binding, sym->type); + syment.st_other = 0; + syment.st_value = sym->scn->offset + sym->offset; + syment.st_size = sym->size; + + /* Add local symbols at the beginning, the other from + the end. */ + int ptr = sym->binding == STB_LOCAL ? ptr_local++ : ptr_nonlocal--; + + /* Determine the section index. We have to handle the + overflow correctly. */ + Elf_Scn *scn = (sym->scn->subsection_id == 0 + ? sym->scn->data.main.scn + : sym->scn->data.up->data.main.scn); + + Elf32_Word ndx; + if (unlikely (scn == ASM_ABS_SCN)) + ndx = SHN_ABS; + else if (unlikely (scn == ASM_COM_SCN)) + ndx = SHN_COMMON; + else if (unlikely ((ndx = elf_ndxscn (scn)) >= SHN_LORESERVE)) + { + if (unlikely (xshndx == NULL)) + { + /* The extended section index section does not yet + exist. */ + Elf_Scn *xndxscn; + + xndxscn = elf_newscn (ctx->out.elf); + xndxdata = elf_newdata (xndxscn); + shdr = gelf_getshdr (xndxscn, &shdr_mem); + if (xndxdata == NULL || shdr == NULL) + { + __libasm_seterrno (ASM_E_LIBELF); + return -1; + } + xndxscnndx = elf_ndxscn (xndxscn); + + shdr->sh_type = SHT_SYMTAB_SHNDX; + shdr->sh_entsize = sizeof (Elf32_Word); + shdr->sh_addralign = sizeof (Elf32_Word); + shdr->sh_link = symscnndx; + + (void) gelf_update_shdr (xndxscn, shdr); + + xndxscn_strent = ebl_strtabadd (ctx->section_strtab, + ".symtab_shndx", 14); + + /* Note that using 'elf32_fsize' instead of + 'gelf_fsize' here is correct. */ + xndxdata->d_size = elf32_fsize (ELF_T_WORD, + ctx->nsymbol_tab + 1, + EV_CURRENT); + xshndx = xndxdata->d_buf = calloc (1, xndxdata->d_size); + if (xshndx == NULL) + return -1; + /* Using ELF_T_WORD here relies on the fact that the + 32- and 64-bit types are the same size. */ + xndxdata->d_type = ELF_T_WORD; + xndxdata->d_off = 0; + } + + /* Store the real section index in the extended setion + index table. */ + assert ((size_t) ptr < ctx->nsymbol_tab + 1); + xshndx[ptr] = ndx; + + /* And signal that this happened. */ + ndx = SHN_XINDEX; + } + syment.st_shndx = ndx; + + /* Remember where we put the symbol. */ + sym->symidx = ptr; + + (void) gelf_update_sym (data, ptr, &syment); + } + + assert (ptr_local == ptr_nonlocal + 1); + + shdr->sh_type = SHT_SYMTAB; + shdr->sh_link = strscnndx; + shdr->sh_info = ptr_local; + shdr->sh_entsize = gelf_fsize (ctx->out.elf, ELF_T_SYM, 1, EV_CURRENT); + shdr->sh_addralign = gelf_fsize (ctx->out.elf, ELF_T_ADDR, 1, + EV_CURRENT); + + (void) gelf_update_shdr (symscn, shdr); + } + + + /* Create the section header string table section and fill in the + references in the section headers. */ + shstrscn = elf_newscn (ctx->out.elf); + shstrtabdata = elf_newdata (shstrscn); + shdr = gelf_getshdr (shstrscn, &shdr_mem); + if (shstrscn == NULL || shstrtabdata == NULL || shdr == NULL) + { + __libasm_seterrno (ASM_E_LIBELF); + return -1; + } + + + /* Add the name of the section header string table. */ + shstrscn_strent = ebl_strtabadd (ctx->section_strtab, ".shstrtab", 10); + + ebl_strtabfinalize (ctx->section_strtab, shstrtabdata); + + shdr->sh_type = SHT_STRTAB; + assert (shdr->sh_entsize == 0); + shdr->sh_name = ebl_strtaboffset (shstrscn_strent); + + (void) gelf_update_shdr (shstrscn, shdr); + + + /* Create the section groups. */ + if (ctx->groups != NULL) + { + AsmScnGrp_t *runp = ctx->groups->next; + + do + { + Elf_Scn *scn; + Elf32_Word *grpdata; + + scn = runp->scn; + assert (scn != NULL); + shdr = gelf_getshdr (scn, &shdr_mem); + assert (shdr != NULL); + + data = elf_newdata (scn); + if (data == NULL) + { + __libasm_seterrno (ASM_E_LIBELF); + return -1; + } + + /* It is correct to use 'elf32_fsize' instead of 'gelf_fsize' + here. */ + data->d_size = elf32_fsize (ELF_T_WORD, runp->nmembers + 1, + EV_CURRENT); + grpdata = data->d_buf = malloc (data->d_size); + if (grpdata == NULL) + return -1; + data->d_type = ELF_T_WORD; + data->d_off = 0; + data->d_align = elf32_fsize (ELF_T_WORD, 1, EV_CURRENT); + + /* The first word of the section is filled with the flag word. */ + *grpdata++ = runp->flags; + + if (runp->members != NULL) + { + AsmScn_t *member = runp->members->data.main.next_in_group; + + do + { + /* Only sections, not subsections, can be registered + as member of a group. The subsections get + automatically included. */ + assert (member->subsection_id == 0); + + *grpdata++ = elf_ndxscn (member->data.main.scn); + } + while ((member = member->data.main.next_in_group) + != runp->members->data.main.next_in_group); + } + + /* Construct the section header. */ + shdr->sh_name = ebl_strtaboffset (runp->strent); + shdr->sh_type = SHT_GROUP; + shdr->sh_flags = 0; + shdr->sh_link = symscnndx; + /* If the user did not specify a signature we use the initial + empty symbol in the symbol table as the signature. */ + shdr->sh_info = (runp->signature != NULL + ? runp->signature->symidx : 0); + + (void) gelf_update_shdr (scn, shdr); + } + while ((runp = runp->next) != ctx->groups->next); + } + + + /* Add the name to the symbol section. */ + if (likely (symscnndx != 0)) + { + Elf_Scn *scn = elf_getscn (ctx->out.elf, symscnndx); + + shdr = gelf_getshdr (scn, &shdr_mem); + + shdr->sh_name = ebl_strtaboffset (symscn_strent); + + (void) gelf_update_shdr (scn, shdr); + + + /* Add the name to the string section. */ + assert (strscnndx != 0); + scn = elf_getscn (ctx->out.elf, strscnndx); + + shdr = gelf_getshdr (scn, &shdr_mem); + + shdr->sh_name = ebl_strtaboffset (strscn_strent); + + (void) gelf_update_shdr (scn, shdr); + + + /* Add the name to the extended symbol index section. */ + if (xndxscnndx != 0) + { + scn = elf_getscn (ctx->out.elf, xndxscnndx); + + shdr = gelf_getshdr (scn, &shdr_mem); + + shdr->sh_name = ebl_strtaboffset (xndxscn_strent); + + (void) gelf_update_shdr (scn, shdr); + } + } + + + /* Iterate over the created sections and fill in the names. */ + for (asmscn = ctx->section_list; asmscn != NULL; asmscn = asmscn->allnext) + { + shdr = gelf_getshdr (asmscn->data.main.scn, &shdr_mem); + /* This better should not fail. */ + assert (shdr != NULL); + + shdr->sh_name = ebl_strtaboffset (asmscn->data.main.strent); + + /* We now know the maximum alignment. */ + shdr->sh_addralign = asmscn->max_align; + + (void) gelf_update_shdr (asmscn->data.main.scn, shdr); + } + + /* Put the reference to the section header string table in the ELF + header. */ + ehdr = gelf_getehdr (ctx->out.elf, &ehdr_mem); + assert (ehdr != NULL); + + shstrscnndx = elf_ndxscn (shstrscn); + if (unlikely (shstrscnndx > SHN_HIRESERVE) + || unlikely (shstrscnndx == SHN_XINDEX)) + { + /* The index of the section header string sectio is too large. */ + Elf_Scn *scn = elf_getscn (ctx->out.elf, 0); + + /* Get the header for the zeroth section. */ + shdr = gelf_getshdr (scn, &shdr_mem); + /* This better does not fail. */ + assert (shdr != NULL); + + /* The sh_link field of the zeroth section header contains the value. */ + shdr->sh_link = shstrscnndx; + + (void) gelf_update_shdr (scn, shdr); + + /* This is the sign for the overflow. */ + ehdr->e_shstrndx = SHN_XINDEX; + } + else + ehdr->e_shstrndx = elf_ndxscn (shstrscn); + + gelf_update_ehdr (ctx->out.elf, ehdr); + + /* Write out the ELF file. */ + if (unlikely (elf_update (ctx->out.elf, ELF_C_WRITE_MMAP)) < 0) + { + __libasm_seterrno (ASM_E_LIBELF); + result = -1; + } + + /* We do not need the section header and symbol string tables anymore. */ + free (shstrtabdata->d_buf); + if (strtabdata != NULL) + free (strtabdata->d_buf); + /* We might have allocated the extended symbol table index. */ + if (xndxdata != NULL) + free (xndxdata->d_buf); + + /* Free section groups memory. */ + AsmScnGrp_t *scngrp = ctx->groups; + if (scngrp != NULL) + do + free (elf_getdata (scngrp->scn, NULL)->d_buf); + while ((scngrp = scngrp->next) != ctx->groups); + + /* Finalize the ELF handling. */ + if (unlikely (elf_end (ctx->out.elf)) != 0) + { + __libasm_seterrno (ASM_E_LIBELF); + result = -1; + } + + /* Free the temporary resources. */ + free (symtab); + + return result; +} + + +int +asm_end (ctx) + AsmCtx_t *ctx; +{ + int result; + + if (ctx == NULL) + /* Something went wrong earlier. */ + return -1; + + result = unlikely (ctx->textp) ? text_end (ctx) : binary_end (ctx); + if (result != 0) + return result; + + /* Make the new file globally readable and user/group-writable. */ + if (fchmod (ctx->fd, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH) != 0) + { + __libasm_seterrno (ASM_E_CANNOT_CHMOD); + return -1; + } + + /* Rename output file. */ + if (rename (ctx->tmp_fname, ctx->fname) != 0) + { + __libasm_seterrno (ASM_E_CANNOT_RENAME); + return -1; + } + + /* Free the resources. */ + __libasm_finictx (ctx); + + return 0; +} + + +static void +free_section (AsmScn_t *scnp) +{ + void *oldp; + + if (scnp->subnext != NULL) + free_section (scnp->subnext); + + struct AsmData *data = scnp->content; + if (data != NULL) + do + { + oldp = data; + data = data->next; + free (oldp); + } + while (oldp != scnp->content); + + free (scnp); +} + + +void +__libasm_finictx (ctx) + AsmCtx_t *ctx; +{ + /* Iterate through section table and free individual entries. */ + AsmScn_t *scn = ctx->section_list; + while (scn != NULL) + { + AsmScn_t *oldp = scn; + scn = scn->allnext; + free_section (oldp); + } + + /* Free the resources of the symbol table. */ + void *runp = NULL; + AsmSym_t *sym; + while ((sym = asm_symbol_tab_iterate (&ctx->symbol_tab, &runp)) != NULL) + free (sym); + asm_symbol_tab_free (&ctx->symbol_tab); + + + /* Free section groups. */ + AsmScnGrp_t *scngrp = ctx->groups; + if (scngrp != NULL) + do + { + AsmScnGrp_t *oldp = scngrp; + + scngrp = scngrp->next; + free (oldp); + } + while (scngrp != ctx->groups); + + + if (unlikely (ctx->textp)) + { + /* Close the stream. */ + fclose (ctx->out.file); + } + else + { + /* Close the output file. */ + /* XXX We should test for errors here but what would we do if we'd + find any. */ + (void) close (ctx->fd); + + /* And the string tables. */ + ebl_strtabfree (ctx->section_strtab); + ebl_strtabfree (ctx->symbol_strtab); + } + + /* Initialize the lock. */ + rwlock_fini (ctx->lock); + + /* Finally free the data structure. */ + free (ctx); +} diff --git a/libasm/asm_error.c b/libasm/asm_error.c new file mode 100644 index 0000000..9d2d81e --- /dev/null +++ b/libasm/asm_error.c @@ -0,0 +1,183 @@ +/* Error handling in libasm. + Copyright (C) 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libasmP.h" + + +/* This is the key for the thread specific memory. */ +static tls_key_t key; + +/* The error number. Used in non-threaded programs. */ +static int global_error; +static bool threaded; +/* We need to initialize the thread-specific data. */ +once_define (static, once); + +/* The initialization and destruction functions. */ +static void init (void); +static void free_key_mem (void *mem); + + +int +asm_errno (void) +{ + int result; + + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if (threaded) + { + /* We have a key. Use it to get the thread-specific buffer. */ + int *buffer = getspecific (key); + if (buffer == NULL) + { + /* No buffer allocated so far. */ + buffer = (int *) malloc (sizeof (int)); + if (buffer == NULL) + /* No more memory available. We use the static buffer. */ + buffer = &global_error; + + setspecific (key, buffer); + + *buffer = 0; + } + + result = *buffer; + *buffer = ASM_E_NOERROR; + return result; + } + + result = global_error; + global_error = ASM_E_NOERROR; + return result; +} + + +void +__libasm_seterrno (value) + int value; +{ + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if (threaded) + { + /* We have a key. Use it to get the thread-specific buffer. */ + int *buffer = getspecific (key); + if (buffer == NULL) + { + /* No buffer allocated so far. */ + buffer = malloc (sizeof (int)); + if (buffer == NULL) + /* No more memory available. We use the static buffer. */ + buffer = &global_error; + + setspecific (key, buffer); + } + + *buffer = value; + } + + global_error = value; +} + + +/* Return the appropriate message for the error. */ +static const char *msgs[ASM_E_NUM] = +{ + [ASM_E_NOERROR] = N_("no error"), + [ASM_E_NOMEM] = N_("out of memory"), + [ASM_E_CANNOT_CREATE] = N_("cannot create output file"), + [ASM_E_INVALID] = N_("invalid parameter"), + [ASM_E_CANNOT_CHMOD] = N_("cannot change mode of output file"), + [ASM_E_CANNOT_RENAME] = N_("cannot rename output file"), + [ASM_E_DUPLSYM] = N_("duplicate symbol"), + [ASM_E_TYPE] = N_("invalid section type for operation") +}; + +const char * +asm_errmsg (error) + int error; +{ + int last_error; + + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if ((error == 0 || error == -1) && threaded) + { + /* We have a key. Use it to get the thread-specific buffer. */ + int *buffer = (int *) getspecific (key); + if (buffer == NULL) + { + /* No buffer allocated so far. */ + buffer = (int *) malloc (sizeof (int)); + if (buffer == NULL) + /* No more memory available. We use the static buffer. */ + buffer = &global_error; + + setspecific (key, buffer); + *buffer = 0; + } + + last_error = *buffer; + } + else + last_error = global_error; + + if (error < -1) + return _("Unknown error"); + if (error == 0 && last_error == 0) + /* No error. */ + return NULL; + + if (error != -1) + last_error = error; + + if (last_error == ASM_E_LIBELF) + return elf_errmsg (-1); + + return _(msgs[last_error]); +} + + +/* Free the thread specific data, this is done if a thread terminates. */ +static void +free_key_mem (void *mem) +{ + free (mem); + setspecific (key, NULL); +} + + +/* Initialize the key for the global variable. */ +static void +init (void) +{ + // XXX Screw you, gcc4, the unused function attribute does not work. + __asm ("" :: "r" (free_key_mem)); + + if (key_create (&key, free_key_mem) == 0) + /* Creating the key succeeded. */ + threaded = true; +} diff --git a/libasm/asm_fill.c b/libasm/asm_fill.c new file mode 100644 index 0000000..67b6441 --- /dev/null +++ b/libasm/asm_fill.c @@ -0,0 +1,62 @@ +/* Determine fill pattern for a section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include +#include + + +int +asm_fill (asmscn, bytes, len) + AsmScn_t *asmscn; + void *bytes; + size_t len; +{ + struct FillPattern *pattern; + struct FillPattern *old_pattern; + + if (asmscn == NULL) + /* Some earlier error. */ + return -1; + + if (bytes == NULL) + /* Use the default pattern. */ + pattern = (struct FillPattern *) __libasm_default_pattern; + else + { + /* Allocate appropriate memory. */ + pattern = (struct FillPattern *) malloc (sizeof (struct FillPattern) + + len); + if (pattern == NULL) + return -1; + + pattern->len = len; + memcpy (pattern->bytes, bytes, len); + } + + old_pattern = asmscn->pattern; + asmscn->pattern = pattern; + + /* Free the old data structure if we have allocated it. */ + if (old_pattern != __libasm_default_pattern) + free (old_pattern); + + return 0; +} diff --git a/libasm/asm_getelf.c b/libasm/asm_getelf.c new file mode 100644 index 0000000..3bbb0d9 --- /dev/null +++ b/libasm/asm_getelf.c @@ -0,0 +1,29 @@ +/* Return ELF descriptor associated with the assembler context. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +Elf * +asm_getelf (ctx) + AsmCtx_t *ctx; +{ + return ctx != NULL ? ctx->out.elf : NULL; +} diff --git a/libasm/asm_newabssym.c b/libasm/asm_newabssym.c new file mode 100644 index 0000000..fba46f0 --- /dev/null +++ b/libasm/asm_newabssym.c @@ -0,0 +1,121 @@ +/* Create new ABS symbol. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include +#include + + +/* Object for special COMMON section. */ +static const AsmScn_t __libasm_abs_scn = + { + .data = { + .main = { + .scn = ASM_ABS_SCN + } + } + }; + + +AsmSym_t * +asm_newabssym (ctx, name, size, value, type, binding) + AsmCtx_t *ctx; + const char *name; + GElf_Xword size; + GElf_Addr value; + int type; + int binding; +{ + AsmSym_t *result; + + if (ctx == NULL) + /* Something went wrong before. */ + return NULL; + + /* Common symbols are public. Therefore the user must provide a + name. */ + if (name == NULL) + { + __libasm_seterrno (ASM_E_INVALID); + return NULL; + } + + rwlock_wrlock (ctx->lock); + + result = (AsmSym_t *) malloc (sizeof (AsmSym_t)); + if (result == NULL) + return NULL; + + result->scn = (AsmScn_t *) &__libasm_abs_scn; + result->size = size; + result->type = type; + result->binding = binding; + result->symidx = 0; + result->strent = ebl_strtabadd (ctx->symbol_strtab, name, 0); + + /* The value of an ABS symbol must not be modified. Since there are + no subsection and the initial offset of the section is 0 we can + get the alignment recorded by storing it into the offset + field. */ + result->offset = value; + + if (unlikely (ctx->textp)) + { + /* An absolute symbol can be defined by giving a symbol a + specific value. */ + if (binding == STB_GLOBAL) + fprintf (ctx->out.file, "\t.globl %s\n", name); + else if (binding == STB_WEAK) + fprintf (ctx->out.file, "\t.weak %s\n", name); + + if (type == STT_OBJECT) + fprintf (ctx->out.file, "\t.type %s,@object\n", name); + else if (type == STT_FUNC) + fprintf (ctx->out.file, "\t.type %s,@function\n", name); + + fprintf (ctx->out.file, "%s = %llu\n", + name, (unsigned long long int) value); + + if (size != 0) + fprintf (ctx->out.file, "\t.size %s, %llu\n", + name, (unsigned long long int) size); + } + else + { + /* Put the symbol in the hash table so that we can later find it. */ + if (asm_symbol_tab_insert (&ctx->symbol_tab, elf_hash (name), result) + != 0) + { + /* The symbol already exists. */ + __libasm_seterrno (ASM_E_DUPLSYM); + free (result); + result = NULL; + } + else if (name != NULL && asm_emit_symbol_p (name)) + /* Only count non-private symbols. */ + ++ctx->nsymbol_tab; + } + + rwlock_unlock (ctx->lock); + + return result; +} diff --git a/libasm/asm_newcomsym.c b/libasm/asm_newcomsym.c new file mode 100644 index 0000000..61e5a90 --- /dev/null +++ b/libasm/asm_newcomsym.c @@ -0,0 +1,102 @@ +/* Create new COMMON symbol. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include +#include + + +/* Object for special COMMON section. */ +static const AsmScn_t __libasm_com_scn = + { + .data = { + .main = { + .scn = ASM_COM_SCN + } + } + }; + + +AsmSym_t * +asm_newcomsym (ctx, name, size, align) + AsmCtx_t *ctx; + const char *name; + GElf_Xword size; + GElf_Addr align; +{ + AsmSym_t *result; + + if (ctx == NULL) + /* Something went wrong before. */ + return NULL; + + /* Common symbols are public. Therefore the user must provide a + name. */ + if (name == NULL) + { + __libasm_seterrno (ASM_E_INVALID); + return NULL; + } + + rwlock_wrlock (ctx->lock); + + result = (AsmSym_t *) malloc (sizeof (AsmSym_t)); + if (result == NULL) + return NULL; + + result->scn = (AsmScn_t *) &__libasm_com_scn; + result->size = size; + /* XXX Do we have to allow a different type? */ + result->type = STT_OBJECT; + /* XXX Do we have to allow a different binding? */ + result->binding = STB_GLOBAL; + result->symidx = 0; + result->strent = ebl_strtabadd (ctx->symbol_strtab, name, 0); + + /* The value of a COM symbol is the alignment. Since there are no + subsection and the initial offset of the section is 0 we can get + the alignment recorded by storing it into the offset field. */ + result->offset = align; + + if (unlikely (ctx->textp)) + fprintf (ctx->out.file, "\t.comm %s, %" PRIuMAX ", %" PRIuMAX "\n", + name, (uintmax_t) size, (uintmax_t) align); + else + { + /* Put the symbol in the hash table so that we can later find it. */ + if (asm_symbol_tab_insert (&ctx->symbol_tab, elf_hash (name), result) + != 0) + { + /* The symbol already exists. */ + __libasm_seterrno (ASM_E_DUPLSYM); + free (result); + result = NULL; + } + else if (name != NULL && asm_emit_symbol_p (name)) + /* Only count non-private symbols. */ + ++ctx->nsymbol_tab; + } + + rwlock_unlock (ctx->lock); + + return result; +} diff --git a/libasm/asm_newscn.c b/libasm/asm_newscn.c new file mode 100644 index 0000000..75890a6 --- /dev/null +++ b/libasm/asm_newscn.c @@ -0,0 +1,202 @@ +/* Create new section in output file. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include + +#include +#include +#include + + +/* Memory for the default pattern. The type uses a flexible array + which does work well with a static initializer. So we play some + dirty tricks here. */ +static const struct +{ + struct FillPattern pattern; + char zero; +} xdefault_pattern = + { + .pattern = + { + .len = 1 + }, + .zero = '\0' + }; +const struct FillPattern *__libasm_default_pattern = &xdefault_pattern.pattern; + + +static AsmScn_t * +text_newscn (AsmScn_t *result, GElf_Word type, GElf_Xword flags) +{ + /* Buffer where we construct the flag string. */ + char flagstr[sizeof (GElf_Xword) * 8 + 5]; + char *wp = flagstr; + const char *typestr = ""; + + /* Only write out the flag string if this is the first time the + section is selected. Some assemblers cannot cope with the + .section pseudo-op otherwise. */ + wp = stpcpy (wp, ", \""); + + if (flags & SHF_WRITE) + *wp++ = 'w'; + if (flags & SHF_ALLOC) + *wp++ = 'a'; + if (flags & SHF_EXECINSTR) + *wp++ = 'x'; + if (flags & SHF_MERGE) + *wp++ = 'M'; + if (flags & SHF_STRINGS) + *wp++ = 'S'; + if (flags & SHF_LINK_ORDER) + *wp++ = 'L'; + + *wp++ = '"'; + + if (type == SHT_PROGBITS) + typestr = ",@progbits"; + else if (type == SHT_NOBITS) + typestr = ",@nobits"; + + /* Terminate the string. */ + *wp = '\0'; + + printf ("\t.section \"%s\"%s%s\n", result->name, flagstr, typestr); + + return result; +} + + +static AsmScn_t * +binary_newscn (AsmScn_t *result, GElf_Word type, GElf_Xword flags, + size_t scnname_len) +{ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + Elf_Scn *scn; + + /* The initial subsection has the number zero. */ + result->subsection_id = 0; + + /* We start at offset zero. */ + result->offset = 0; + /* And generic alignment. */ + result->max_align = 1; + + /* No output yet. */ + result->content = NULL; + + /* Put the default fill pattern in place. */ + result->pattern = (struct FillPattern *) __libasm_default_pattern; + + /* There are no subsections so far. */ + result->subnext = NULL; + + /* Add the name to the section header string table. */ + result->data.main.strent = ebl_strtabadd (result->ctx->section_strtab, + result->name, scnname_len); + assert (result->data.main.strent != NULL); + + /* Create the new ELF section. */ + result->data.main.scn = scn = elf_newscn (result->ctx->out.elf); + if (scn == NULL) + { + free (result); + __libasm_seterrno (ASM_E_LIBELF); + return NULL; + } + + /* Not part of a section group (yet). */ + result->data.main.next_in_group = NULL; + + /* Remember the flags. */ + shdr = gelf_getshdr (scn, &shdr_mem); + + shdr->sh_flags = flags; + result->type = shdr->sh_type = type; + + (void) gelf_update_shdr (scn, shdr); + + return result; +} + + +AsmScn_t * +asm_newscn (ctx, scnname, type, flags) + AsmCtx_t *ctx; + const char *scnname; + GElf_Word type; + GElf_Xword flags; +{ + size_t scnname_len = strlen (scnname) + 1; + unsigned long int hval; + AsmScn_t *result; + + /* If no context is given there might be an earlier error. */ + if (ctx == NULL) + return NULL; + + /* Check whether only flags are set which areselectable by the user. */ + if (unlikely ((flags & ~(SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR | SHF_MERGE + | SHF_STRINGS | SHF_LINK_ORDER)) != 0) + /* We allow only two section types: data and data without file + representation. */ + || (type != SHT_PROGBITS && unlikely (type != SHT_NOBITS))) + { + __libasm_seterrno (ASM_E_INVALID); + return NULL; + } + + hval = elf_hash (scnname); + + rwlock_wrlock (ctx->lock); + + /* This is a new section. */ + result = (AsmScn_t *) malloc (sizeof (AsmScn_t) + scnname_len); + if (result != NULL) + { + /* Add the name. */ + memcpy (result->name, scnname, scnname_len); + + /* Add the reference to the context. */ + result->ctx = ctx; + + /* Perform operations according to output mode. */ + result = (unlikely (ctx->textp) + ? text_newscn (result, type, flags) + : binary_newscn (result, type, flags, scnname_len)); + + /* If everything went well finally add the new section to the hash + table. */ + if (result != NULL) + { + result->allnext = ctx->section_list; + ctx->section_list = result; + } + } + + rwlock_unlock (ctx->lock); + + return result; +} +INTDEF(asm_newscn) diff --git a/libasm/asm_newscn_ingrp.c b/libasm/asm_newscn_ingrp.c new file mode 100644 index 0000000..bfbdc6a --- /dev/null +++ b/libasm/asm_newscn_ingrp.c @@ -0,0 +1,66 @@ +/* Create new section, which is member of a group, in output file. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include "libasmP.h" + + +AsmScn_t * +asm_newscn_ingrp (ctx, scnname, type, flags, grp) + AsmCtx_t *ctx; + const char *scnname; + GElf_Word type; + GElf_Xword flags; + AsmScnGrp_t *grp; +{ + AsmScn_t *result = INTUSE (asm_newscn) (ctx, scnname, type, flags); + + if (likely (result != NULL)) + { + /* We managed to create a section group. Add it to the section + group. */ + if (grp->nmembers == 0) + { + assert (grp->members == NULL); + grp->members = result->data.main.next_in_group = result; + } + else + { + result->data.main.next_in_group + = grp->members->data.main.next_in_group; + grp->members = grp->members->data.main.next_in_group = result; + } + + ++grp->nmembers; + + /* Set the SHF_GROUP flag. */ + if (likely (! ctx->textp)) + { + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (result->data.main.scn, &shdr_mem); + + assert (shdr != NULL); + shdr->sh_flags |= SHF_GROUP; + + (void) gelf_update_shdr (result->data.main.scn, shdr); + } + } + + return result; +} diff --git a/libasm/asm_newscngrp.c b/libasm/asm_newscngrp.c new file mode 100644 index 0000000..c1c8be3 --- /dev/null +++ b/libasm/asm_newscngrp.c @@ -0,0 +1,90 @@ +/* Create new section group. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libasmP.h" +#include + + + +AsmScnGrp_t * +asm_newscngrp (ctx, grpname, signature, flags) + AsmCtx_t *ctx; + const char *grpname; + AsmSym_t *signature; + Elf32_Word flags; +{ + AsmScnGrp_t *result; + size_t grpname_len = strlen (grpname) + 1; + + if (ctx == NULL) + return NULL; + + if ((flags & ~GRP_COMDAT) != 0) + { + /* This is not a supported flag. */ + __libasm_seterrno (ASM_E_INVALID); + return NULL; + } + + result = (AsmScnGrp_t *) malloc (sizeof (AsmScnGrp_t) + grpname_len); + if (result == NULL) + return NULL; + + result->signature = signature; + result->members = NULL; + result->nmembers = 0; + result->flags = flags; + + memcpy (result->name, grpname, grpname_len); + result->strent = ebl_strtabadd (ctx->section_strtab, result->name, + grpname_len); + + if (unlikely (ctx->textp)) + // XXX TBI. What is the format? + abort (); + else + { + result->scn = elf_newscn (ctx->out.elf); + if (result->scn == NULL) + { + /* Couldn't allocate a new section. */ + __libasm_seterrno (ASM_E_LIBELF); + free (result); + return NULL; + } + } + + /* Enqueue is the context data structure. */ + if (ctx->ngroups == 0) + { + assert (ctx->groups == NULL); + ctx->groups = result->next = result; + } + else + { + result->next = ctx->groups->next; + ctx->groups = ctx->groups->next = result; + } + ++ctx->ngroups; + + return result; +} diff --git a/libasm/asm_newsubscn.c b/libasm/asm_newsubscn.c new file mode 100644 index 0000000..e767720 --- /dev/null +++ b/libasm/asm_newsubscn.c @@ -0,0 +1,84 @@ +/* Create new subsection section in given section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include +#include + + +AsmScn_t * +asm_newsubscn (asmscn, nr) + AsmScn_t *asmscn; + unsigned int nr; +{ + AsmScn_t *runp; + AsmScn_t *newp; + + /* Just return if no section is given. The error must have been + somewhere else. */ + if (asmscn == NULL) + return NULL; + + /* Determine whether there is already a subsection with this number. */ + runp = asmscn->subsection_id == 0 ? asmscn : asmscn->data.up; + while (1) + { + if (runp->subsection_id == nr) + /* Found it. */ + return runp; + + if (runp->subnext == NULL || runp->subnext->subsection_id > nr) + break; + + runp = runp->subnext; + } + + newp = (AsmScn_t *) malloc (sizeof (AsmScn_t)); + if (newp == NULL) + return NULL; + + /* Same assembler context than the original section. */ + newp->ctx = runp->ctx; + + /* User provided the subsectio nID. */ + newp->subsection_id = nr; + + /* Inherit the parent's type. */ + newp->type = runp->type; + + /* Pointer to the zeroth subsection. */ + newp->data.up = runp->subsection_id == 0 ? runp : runp->data.up; + + /* We start at offset zero. */ + newp->offset = 0; + /* And generic alignment. */ + newp->max_align = 1; + + /* No output yet. */ + newp->content = NULL; + + /* Inherit the fill pattern from the section this one is derived from. */ + newp->pattern = asmscn->pattern; + + /* Enqueue at the right position in the list. */ + newp->subnext = runp->subnext; + runp->subnext = newp; + + return newp; +} diff --git a/libasm/asm_newsym.c b/libasm/asm_newsym.c new file mode 100644 index 0000000..70ad9e5 --- /dev/null +++ b/libasm/asm_newsym.c @@ -0,0 +1,123 @@ +/* Define new symbol for current position in given section. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include +#include + + +AsmSym_t * +asm_newsym (asmscn, name, size, type, binding) + AsmScn_t *asmscn; + const char *name; + GElf_Xword size; + int type; + int binding; +{ +#define TEMPSYMLEN 10 + char tempsym[TEMPSYMLEN]; + AsmSym_t *result; + + if (asmscn == NULL) + /* Something went wrong before. */ + return NULL; + + /* Generate a temporary symbol if necessary. */ + if (name == NULL) + { + /* If a local symbol name is created the symbol better have + local binding. */ + if (binding != STB_LOCAL) + { + __libasm_seterrno (ASM_E_INVALID); + return NULL; + } + + // XXX This requires getting the format from the machine backend. */ + snprintf (tempsym, TEMPSYMLEN, ".L%07u", asmscn->ctx->tempsym_count++); + + name = tempsym; + } + + size_t name_len = strlen (name) + 1; + + result = (AsmSym_t *) malloc (sizeof (AsmSym_t) + name_len); + if (result == NULL) + return NULL; + + rwlock_wrlock (asmscn->ctx->lock); + + result->scn = asmscn; + result->offset = asmscn->offset; + result->size = size; + result->type = type; + result->binding = binding; + result->symidx = 0; + result->strent = ebl_strtabadd (asmscn->ctx->symbol_strtab, + memcpy (result + 1, name, name_len), 0); + + if (unlikely (asmscn->ctx->textp)) + { + /* We are only interested in the name and don't need to know whether + it is a local name or not. */ + /* First print the binding pseudo-op. */ + if (binding == STB_GLOBAL) + fprintf (asmscn->ctx->out.file, "\t.globl\t%s\n", name); + else if (binding == STB_WEAK) + fprintf (asmscn->ctx->out.file, "\t.weak\t%s\n", name); + + /* Next the symbol type. */ + if (type == STT_OBJECT) + fprintf (asmscn->ctx->out.file, "\t.type\t%s,@object\n", name); + else if (type == STT_FUNC) + fprintf (asmscn->ctx->out.file, "\t.type\t%s,@function\n", name); + + /* Finally the size and the label. */ + fprintf (asmscn->ctx->out.file, "\t.size\t%s,%" PRIuMAX "\n%s:\n", + name, (uintmax_t) size, name); + } + else + { + /* Put the symbol in the hash table so that we can later find it. */ + if (asm_symbol_tab_insert (&asmscn->ctx->symbol_tab, elf_hash (name), + result) != 0) + { + /* The symbol already exists. */ + __libasm_seterrno (ASM_E_DUPLSYM); + /* Note that we can free the entry since there must be no + reference in the string table to the string. We can only + fail to insert the symbol into the symbol table if there + is already a symbol with this name. In this case the + ebl_strtabadd function would use the previously provided + name. */ + free (result); + result = NULL; + } + else if (name != tempsym && asm_emit_symbol_p (name)) + /* Only count non-private symbols. */ + ++asmscn->ctx->nsymbol_tab; + } + + rwlock_unlock (asmscn->ctx->lock); + + return result; +} diff --git a/libasm/asm_scngrp_newsignature.c b/libasm/asm_scngrp_newsignature.c new file mode 100644 index 0000000..d4042a2 --- /dev/null +++ b/libasm/asm_scngrp_newsignature.c @@ -0,0 +1,33 @@ +/* Update signature of section group. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libasmP.h" + + +int +asm_scngrp_newsignature (grp, signature) + AsmScnGrp_t *grp; + AsmSym_t *signature; +{ + if (grp == NULL || signature == NULL) + return 1; + + grp->signature = signature; + + return 0; +} diff --git a/libasm/libasm.h b/libasm/libasm.h new file mode 100644 index 0000000..dbdd6fc --- /dev/null +++ b/libasm/libasm.h @@ -0,0 +1,155 @@ +/* Interface for libasm. + Copyright (C) 2002 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBASM_H +#define _LIBASM_H 1 + +#include +#include + +#include + + +/* Opaque type for the assembler context descriptor. */ +typedef struct AsmCtx AsmCtx_t; + +/* Opaque type for a section. */ +typedef struct AsmScn AsmScn_t; + +/* Opaque type for a section group. */ +typedef struct AsmScnGrp AsmScnGrp_t; + +/* Opaque type for a symbol. */ +typedef struct AsmSym AsmSym_t; + + +#ifdef __cplusplus +extern "C" { +#endif + +/* Create output file and return descriptor for assembler context. If + TEXTP is true the output is an assembler format text file. + Otherwise an object file is created. The MACHINE parameter + corresponds to an EM_ constant from , KLASS specifies the + class (32- or 64-bit), and DATA specifies the byte order (little or + big endian). */ +extern AsmCtx_t *asm_begin (const char *fname, bool textp, int machine, + int klass, int data); + +/* Abort the operation on the assembler context and free all resources. */ +extern int asm_abort (AsmCtx_t *ctx); + +/* Finalize output file and free all resources. */ +extern int asm_end (AsmCtx_t *ctx); + + +/* Return handle for the named section. If it was not used before + create it. */ +extern AsmScn_t *asm_newscn (AsmCtx_t *ctx, const char *scnname, + GElf_Word type, GElf_Xword flags); + + +/* Similar to 'asm_newscn', but make it part of section group GRP. */ +extern AsmScn_t *asm_newscn_ingrp (AsmCtx_t *ctx, const char *scnname, + GElf_Word type, GElf_Xword flags, + AsmScnGrp_t *grp); + +/* Create new subsection NR in the given section. */ +extern AsmScn_t *asm_newsubscn (AsmScn_t *asmscn, unsigned int nr); + + +/* Return handle for new section group. The signature symbol can be + set later. */ +extern AsmScnGrp_t *asm_newscngrp (AsmCtx_t *ctx, const char *grpname, + AsmSym_t *signature, Elf32_Word flags); + +/* Set or overwrite signature symbol for group. */ +extern int asm_scngrp_newsignature (AsmScnGrp_t *grp, AsmSym_t *signature); + + +/* Add zero terminated string STR of size LEN to (sub)section ASMSCN. */ +extern int asm_addstrz (AsmScn_t *asmscn, const char *str, size_t len); + +/* Add 8-bit signed integer NUM to (sub)section ASMSCN. */ +extern int asm_addint8 (AsmScn_t *asmscn, int8_t num); + +/* Add 8-bit unsigned integer NUM to (sub)section ASMSCN. */ +extern int asm_adduint8 (AsmScn_t *asmscn, uint8_t num); + +/* Add 16-bit signed integer NUM to (sub)section ASMSCN. */ +extern int asm_addint16 (AsmScn_t *asmscn, int16_t num); + +/* Add 16-bit unsigned integer NUM to (sub)section ASMSCN. */ +extern int asm_adduint16 (AsmScn_t *asmscn, uint16_t num); + +/* Add 32-bit signed integer NUM to (sub)section ASMSCN. */ +extern int asm_addint32 (AsmScn_t *asmscn, int32_t num); + +/* Add 32-bit unsigned integer NUM to (sub)section ASMSCN. */ +extern int asm_adduint32 (AsmScn_t *asmscn, uint32_t num); + +/* Add 64-bit signed integer NUM to (sub)section ASMSCN. */ +extern int asm_addint64 (AsmScn_t *asmscn, int64_t num); + +/* Add 64-bit unsigned integer NUM to (sub)section ASMSCN. */ +extern int asm_adduint64 (AsmScn_t *asmscn, uint64_t num); + + +/* Add signed little endian base 128 integer NUM to (sub)section ASMSCN. */ +extern int asm_addsleb128 (AsmScn_t *asmscn, int32_t num); + +/* Add unsigned little endian base 128 integer NUM to (sub)section ASMSCN. */ +extern int asm_adduleb128 (AsmScn_t *asmscn, uint32_t num); + + +/* Define new symbol NAME for current position in given section ASMSCN. */ +extern AsmSym_t *asm_newsym (AsmScn_t *asmscn, const char *name, + GElf_Xword size, int type, int binding); + + +/* Define new common symbol NAME with given SIZE and alignment. */ +extern AsmSym_t *asm_newcomsym (AsmCtx_t *ctx, const char *name, + GElf_Xword size, GElf_Addr align); + +/* Define new common symbol NAME with given SIZE, VALUE, TYPE, and BINDING. */ +extern AsmSym_t *asm_newabssym (AsmCtx_t *ctx, const char *name, + GElf_Xword size, GElf_Addr value, + int type, int binding); + + +/* Align (sub)section offset according to VALUE. */ +extern int asm_align (AsmScn_t *asmscn, GElf_Word value); + +/* Set the byte pattern used to fill gaps created by alignment. */ +extern int asm_fill (AsmScn_t *asmscn, void *bytes, size_t len); + + +/* Return ELF descriptor created for the output file of the given context. */ +extern Elf *asm_getelf (AsmCtx_t *ctx); + + +/* Return error code of last failing function call. This value is kept + separately for each thread. */ +extern int asm_errno (void); + +/* Return error string for ERROR. If ERROR is zero, return error string + for most recent error or NULL is none occurred. If ERROR is -1 the + behaviour is similar to the last case except that not NULL but a legal + string is returned. */ +extern const char *asm_errmsg (int __error); + +#ifdef __cplusplus +} +#endif + +#endif /* libasm.h */ diff --git a/libasm/libasm.map b/libasm/libasm.map new file mode 100644 index 0000000..b0b5b5b --- /dev/null +++ b/libasm/libasm.map @@ -0,0 +1,33 @@ +ELFUTILS_1.0 { + global: + asm_abort; + asm_addint16; + asm_addint32; + asm_addint64; + asm_addint8; + asm_addsleb128; + asm_addstrz; + asm_adduint16; + asm_adduint32; + asm_adduint64; + asm_adduint8; + asm_adduleb128; + asm_align; + asm_begin; + asm_end; + asm_errmsg; + asm_errno; + asm_fill; + asm_getelf; + asm_newabssym; + asm_newcomsym; + asm_newscn; + asm_newscn_ingrp; + asm_newscngrp; + asm_newsubscn; + asm_newsym; + asm_scngrp_newsignature; + + local: + *; +}; diff --git a/libasm/libasmP.h b/libasm/libasmP.h new file mode 100644 index 0000000..2e4954f --- /dev/null +++ b/libasm/libasmP.h @@ -0,0 +1,268 @@ +/* Internal definitions for libasm. + Copyright (C) 2002, 2004 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBASMP_H +#define _LIBASMP_H 1 + +#include + +#include +#include + +/* gettext helper macros. */ +#define _(Str) dgettext ("elfutils", Str) + + +/* Known error codes. */ +enum + { + ASM_E_NOERROR, + ASM_E_NOMEM, /* No more memory. */ + ASM_E_CANNOT_CREATE, /* Output file cannot be created. */ + ASM_E_INVALID, /* Invalid parameters. */ + ASM_E_CANNOT_CHMOD, /* Cannot change mode of output file. */ + ASM_E_CANNOT_RENAME, /* Cannot rename output file. */ + ASM_E_DUPLSYM, /* Duplicate symbol definition. */ + ASM_E_LIBELF, /* Refer to error in libelf. */ + ASM_E_TYPE, /* Invalid section type for operation. */ + ASM_E_NUM /* Keep this entry as the last. */ + }; + + +/* Special sections. */ +#define ASM_ABS_SCN ((Elf_Scn *) 1) +#define ASM_COM_SCN ((Elf_Scn *) 2) + + +/* And the hash table for symbols. */ +#include + + +/* Descriptor for a section. */ +struct AsmScn +{ + /* The underlying assembler context. */ + AsmCtx_t *ctx; + + /* Subsection ID. */ + unsigned int subsection_id; + + /* Section type. */ + GElf_Word type; + + union + { + /* Data only stored in the record for subsection zero. */ + struct + { + /* The ELF section. */ + Elf_Scn *scn; + + /* Entry in the section header string table. */ + struct Ebl_Strent *strent; + + /* Next member of group. */ + struct AsmScn *next_in_group; + } main; + + /* Pointer to the record for subsection zero. */ + AsmScn_t *up; + } data; + + /* Current offset in the (sub)section. */ + GElf_Off offset; + /* Maximum alignment of the section so far. */ + GElf_Word max_align; + + /* Section content. */ + struct AsmData + { + /* Currently used number of bytes in the block. */ + size_t len; + + /* Number of bytes allocated. */ + size_t maxlen; + + /* Pointer to the next block. */ + struct AsmData *next; + + /* The actual data. */ + char data[flexarr_size]; + } *content; + + /* Fill pattern. */ + struct FillPattern + { + size_t len; + char bytes[flexarr_size]; + } *pattern; + + /* Next subsection. */ + AsmScn_t *subnext; + + /* List of all allocated sections. */ + AsmScn_t *allnext; + + /* Name of the section. */ + char name[flexarr_size]; +}; + + +/* Descriptor used for the assembling session. */ +struct AsmCtx +{ + /* File descriptor of the temporary file. */ + int fd; + + /* True if text output is wanted. */ + bool textp; + + /* Output file handle. */ + union + { + /* ELF descriptor of the temporary file. */ + Elf *elf; + /* I/O stream for text output. */ + FILE *file; + } out; + + + /* List with defined sections. */ + AsmScn_t *section_list; + /* Section header string table. */ + struct Ebl_Strtab *section_strtab; + + /* Table with defined symbols. */ + asm_symbol_tab symbol_tab; + /* Number of symbols in the table. */ + unsigned int nsymbol_tab; + /* Symbol string table. */ + struct Ebl_Strtab *symbol_strtab; + + /* List of section groups. */ + struct AsmScnGrp *groups; + /* Number of section groups. */ + size_t ngroups; + + /* Current required alignment for common symbols. */ + GElf_Word common_align; + + /* Lock to handle multithreaded programs. */ + rwlock_define (,lock); + + /* Counter for temporary symbols. */ + unsigned int tempsym_count; + + /* Name of the output file. */ + char *fname; + /* The name of the temporary file. */ + char tmp_fname[flexarr_size]; +}; + + +/* Descriptor for a symbol. */ +struct AsmSym +{ + /* Reference to the section which contains the symbol. */ + AsmScn_t *scn; + + /* Type of the symbol. */ + int8_t type; + /* Binding of the symbol. */ + int8_t binding; + + /* Size of the symbol. */ + GElf_Xword size; + + /* Offset in the section. */ + GElf_Off offset; + + /* Symbol table index of the symbol in the symbol table. */ + size_t symidx; + + /* Reference to name of the symbol. */ + struct Ebl_Strent *strent; +}; + + +/* Descriptor for section group. */ +struct AsmScnGrp +{ + /* Entry in the section header string table. */ + struct Ebl_Strent *strent; + + /* The ELF section. */ + Elf_Scn *scn; + + /* The signature. */ + struct AsmSym *signature; + + /* First member. */ + struct AsmScn *members; + /* Number of members. */ + size_t nmembers; + + /* Flags. */ + Elf32_Word flags; + + /* Next group. */ + struct AsmScnGrp *next; + + /* Name of the section group. */ + char name[flexarr_size]; +}; + + +/* The default fill pattern: one zero byte. */ +extern const struct FillPattern *__libasm_default_pattern + attribute_hidden; + + +/* Ensure there are at least LEN bytes available in the output buffer + for ASMSCN. */ +extern int __libasm_ensure_section_space (AsmScn_t *asmscn, size_t len) + internal_function; + +/* Free all resources associated with the assembler context. */ +extern void __libasm_finictx (AsmCtx_t *ctx) internal_function; + +/* Set error code. */ +extern void __libasm_seterrno (int err) internal_function; + +/* Return handle for the named section. If it was not used before + create it. */ +extern AsmScn_t *__asm_newscn_internal (AsmCtx_t *ctx, const char *scnname, + GElf_Word type, GElf_Xword flags) + attribute_hidden; + + +/* Internal aliases of the asm_addintXX functions. */ +extern int __asm_addint8_internal (AsmScn_t *asmscn, int8_t num) + attribute_hidden; +extern int __asm_addint16_internal (AsmScn_t *asmscn, int16_t num) + attribute_hidden; +extern int __asm_addint32_internal (AsmScn_t *asmscn, int32_t num) + attribute_hidden; +extern int __asm_addint64_internal (AsmScn_t *asmscn, int64_t num) + attribute_hidden; + + + +/* Test whether given symbol is an internal symbol and if yes, whether + we should nevertheless emit it in the symbol table. */ +// XXX The second part should probably be controlled by an option which +// isn't implemented yet +// XXX Also, the format will change with the backend. +#define asm_emit_symbol_p(name) (strncmp (name, ".L", 2) != 0) + +#endif /* libasmP.h */ diff --git a/libasm/symbolhash.c b/libasm/symbolhash.c new file mode 100644 index 0000000..62d2c85 --- /dev/null +++ b/libasm/symbolhash.c @@ -0,0 +1,39 @@ +/* Symbol hash table implementation. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include +#include + +/* Definitions for the symbol hash table. */ +#define TYPE AsmSym_t * +#define NAME asm_symbol_tab +#define ITERATE 1 +#define REVERSE 1 +#define COMPARE(a, b) \ + strcmp (ebl_string ((a)->strent), ebl_string ((b)->strent)) + +#define next_prime __libasm_next_prime +extern size_t next_prime (size_t) attribute_hidden; + +#include "../lib/dynamicsizehash.c" + +#undef next_prime +#define next_prime attribute_hidden __libasm_next_prime +#include "../lib/next_prime.c" diff --git a/libasm/symbolhash.h b/libasm/symbolhash.h new file mode 100644 index 0000000..4377b4b --- /dev/null +++ b/libasm/symbolhash.h @@ -0,0 +1,25 @@ +/* Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef SYMBOLHASH_H +#define SYMBOLHASH_H 1 + +/* Definitions for the symbol hash table. */ +#define TYPE AsmSym_t * +#define NAME asm_symbol_tab +#define ITERATE 1 +#define COMPARE(a, b) \ + strcmp (ebl_string ((a)->strent), ebl_string ((b)->strent)) +#include + +#endif /* symbolhash.h */ diff --git a/libcpu/.cvsignore b/libcpu/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/libcpu/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/libcpu/ChangeLog b/libcpu/ChangeLog new file mode 100644 index 0000000..5c2a4ac --- /dev/null +++ b/libcpu/ChangeLog @@ -0,0 +1,11 @@ +2005-02-15 Ulrich Drepper + + * Makefile (AM_CFLAGS): Add -Wunused -Wextra -Wformat=2. + +2005-02-05 Ulrich Drepper + + * Makefile.am (AM_CFLAGS): Define, instead of adding things to DEFS. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/libcpu/Makefile.am b/libcpu/Makefile.am new file mode 100644 index 0000000..02fb802 --- /dev/null +++ b/libcpu/Makefile.am @@ -0,0 +1,21 @@ +## Process this file with automake to create Makefile.in +## +## Copyright (C) 2002, 2005 Red Hat, Inc. +## +## This program is Open Source software; you can redistribute it and/or +## modify it under the terms of the Open Software License version 1.0 as +## published by the Open Source Initiative. +## +## You should have received a copy of the Open Software License along +## with this program; if not, you may obtain a copy of the Open Software +## License version 1.0 from http://www.opensource.org/licenses/osl.php or +## by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +## 3001 King Ranch Road, Ukiah, CA 95482. +## +DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H +AM_CFLAGS = -Wall -Wshadow -Werror -Wextra -Wformat=2 -Wunused +INCLUDES = -I$(srcdir) + +noinst_LIBRARIES = libcpu_i386.a + +libcpu_i386_a_SOURCES = i386_dis.c diff --git a/libcpu/i386_dis.c b/libcpu/i386_dis.c new file mode 100644 index 0000000..971746e --- /dev/null +++ b/libcpu/i386_dis.c @@ -0,0 +1 @@ +int foo; diff --git a/libdw/.cvsignore b/libdw/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/libdw/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/libdw/ChangeLog b/libdw/ChangeLog new file mode 100644 index 0000000..28c582a --- /dev/null +++ b/libdw/ChangeLog @@ -0,0 +1,512 @@ +2005-07-23 Ulrich Drepper + + * dwarf_error.c: Add internal alias for dwarf_errno. + * libdwP.h: Declare __dwarf_errno_internal. + * dwarf_getloclist.c: Use INTDEF for dwarf_errno. + + * dwarf_error.c [USE_TLS]: Actually use __thread in definition of + global_error. + +2005-06-01 Roland McGrath + + * dwarf_getaranges.c (dwarf_getaranges): Sort result array. + * dwarf_getarange_addr.c (dwarf_getarange_addr): Use binary search. + +2005-06-08 Roland McGrath + + * memory-access.h (get_uleb128_step, get_uleb128): Remove casts. + (get_sleb128_step, get_sleb128): Likewise. + * dwarf_getattrs.c (dwarf_getattrs): Add consts. + * dwarf_getloclist.c (getloclist): Likewise. + * dwarf_formblock.c (dwarf_formblock): Likewise. + * dwarf_getsrclines.c (dwarf_getsrclines): Likewise. + * dwarf_getabbrevattr.c (dwarf_getabbrevattr): Likewise. + * dwarf_formref.c (dwarf_formref): Likewise. + * dwarf_formsdata.c (dwarf_formsdata): Likewise. + * dwarf_formudata.c (dwarf_formudata): Likewise. + * dwarf_haschildren.c (dwarf_haschildren): Likewise. + * dwarf_child.c (__libdw_find_attr, __libdw_find_attr): Likewise. + * dwarf_tag.c (dwarf_tag): Likewise. + * dwarf_getabbrev.c (__libdw_getabbrev): Likewise. + * memory-access.c (__libdw_get_uleb128, __libdw_get_sleb128): Likewise. + * libdw_form.c (__libdw_form_val_len): Likewise. + * libdwP.h: Update decl. + +2005-06-04 Roland McGrath + + * memory-access.h (get_uleb128_rest_return): New macro. + [! IS_LIBDW] (__libdw_get_uleb128): New static, defined using it. + (get_sleb128_rest_return): New macro. + [! IS_LIBDW] (__libdw_get_sleb128): New static, defined using it. + * memory-access.c: New file. + * Makefile.am (libdw_a_SOURCES): Add it. + (DEFS): Add -DIS_LIBDW. + +2005-05-31 Roland McGrath + + * dwarf_formref_die.c (dwarf_formref_die): Add CU header offset to + formref offset. + +2005-05-30 Roland McGrath + + * dwarf_getloclist.c (dwarf_addrloclists): Use DW_AT_entry_pc for base + address if DW_AT_low_pc is missing. Not to spec, but GCC generates it. + + * dwarf_getloclist.c (dwarf_addrloclists): Don't sign-extend 4-byte + BEGIN value. Instead, match base address entries separately for + 32/64 size cases. + +2005-05-28 Roland McGrath + + * dwarf_getloclist.c (dwarf_addrloclists): Fix decoding to advance + past location expression contents. + +2005-05-23 Roland McGrath + + * dwarf_getsrclines.c: Comment typo fix. + + * dwarf_haspc.c (dwarf_haspc): Fix CU DIE address calculation. + * dwarf_getloclist.c (dwarf_addrloclists): Likewise. + +2005-05-22 Ulrich Drepper + + * libdwP.h: Only use INTDECL for alias prototypes. + +2005-05-19 Roland McGrath + + * dwarf_getloclist.c (attr_ok): Permit DW_AT_static_link too. + + * dwarf_getscopevar.c: New file. + * Makefile.am (libdw_a_SOURCES): Add it. + * libdw.h: Declare dwarf_getscopevar. + + * dwarf_getsrcfiles.c: Add INTDEF. + * dwarf_haschildren.c: Likewise. + * libdwP.h (dwarf_getsrcfiles, dwarf_haschildren): Add INTDECL. + + * dwarf_getscopes.c: New file. + * Makefile.am (libdw_a_SOURCES): Add it. + * libdw.h: Declare dwarf_getscopes. + * libdw.map: Add it. + +2005-05-18 Roland McGrath + + * libdwP.h (IDX_debug_ranges): New enum constant. + * dwarf_begin_elf.c (dwarf_scnnames): Add it for ".debug_ranges". + * libdwP.h (DWARF_E_NO_DEBUG_RANGES): New enum constant. + * dwarf_error.c (errmsgs): Add it. + * dwarf_haspc.c: New file. + * libdw.h: Declare dwarf_haspc. + * libdw.map: Add it. + * libdwP.h: Add INTDECL. + + * dwarf_attr_integrate.c: New file. + * dwarf_hasattr_integrate.c: New file. + * Makefile.am (libdw_a_SOURCES): Add them. + * libdw.h: Declare dwarf_attr_integrate, dwarf_hasattr_integrate. + * libdw.map: Add them. + + * dwarf_hasattr.c: Add INTDEF. + * libdwP.h: Add INTDECL for it. + + * dwarf_formref_die.c: New file. + * Makefile.am (libdw_a_SOURCES): Add it. + * libdw.h (dwarf_formref_die): Declare it. + * libdwP.h (dwarf_formref_die): Add INTDECL. + * libdw.map: Add it. + + * dwarf_getloclist.c (attr_ok, getloclist): New functions, broken out + of ... + (dwarf_getloclist): ... here. Call them. + (dwarf_addrloclists): New function. + * libdw.h: Declare it. + * libdw.map: Add it. + + * dwarf_getmacros.c (dwarf_getmacros): Don't bail at + DW_MACINFO_end_file. Recognize type 0 as terminator. + +2005-05-05 Roland McGrath + + * dwarf_getsrc_die.c (dwarf_getsrc_die): Use binary search. + + * dwarf_getsrclines.c (dwarf_getsrclines): Sort result array, since + the line program does not produce all entries in ascending order. + +2005-04-25 Ulrich Drepper + + * dwarf_getsrc_file.c (dwarf_getsrc_file): Handle multiple + occurences (e.g., inlines) better. + +2005-04-24 Ulrich Drepper + + * libdw.h (DWARF_END_ABBREV): Define. + * dwarf_getabbrev.c (__libdw_getabbrev): Return DWARF_END_ABBREV if + end is reached. + * dwarf_offabbrev.c (dwarf_offabbrev): Return -1 on error, 1 if end + of records reached. + * dwarf_tag.c (__libdw_findabbrev): Also recognize DWARF_END_ABBREV + as error of __libdw_getabbrev. + +2005-04-04 Ulrich Drepper + + * dwarf_getsrc_file.c (dwarf_getsrc_file): Minor optimization. + + * dwarf_getsrc_file.c (dwarf_getsrc_file): Always pass number of + results back to caller. + +2005-04-04 Roland McGrath + + * dwarf_getsrc_file.c (dwarf_getsrc_file): Use size_t for CUHL. + + * dwarf_func_line.c (__libdw_func_intval): Use internal_function in + defn. + +2005-04-04 Ulrich Drepper + + * dwarf_getsrc_file.c (dwarf_getsrc_file): Use INTUSE. + + * dwarf_getsrc_file.c: New file. + * Makefile.am (libdw_a_SOURCES): Add dwarf_getsrc_file.c. + * libdw.h: Declare dwarf_getsrc_file. + * libdw.map: Add dwarf_getsrc_file. + +2005-04-02 Ulrich Drepper + + * dwarf_func_entrypc.c: New file. + * dwarf_func_col.c: New file. + * dwarf_func_line.c: New file. + * dwarf_func_file.c: New file. + * libdw.h: Add prototypes for new functions. + * libdw.map: Add dwarf_func_entrypc, dwarf_func_col, dwarf_func_line, + dwarf_func_file. + * Makefile.am (libdw_a_SOURCES): Add dwarf_func_entrypc.c, + dwarf_func_col.c, dwarf_func_line.c, dwarf_func_file.c. + * libdwP.h (struct Dwarf_Func_s): Add cudie element. + Declare __libdw_func_intval and __dwarf_formsdata_internal. + * dwarf_getfuncs.c: Also fill in cudie in Dwarf_Func object. + * dwarf_formsdata.c: Use INTUSE and INTDEF to avoid PLTs. + + * dwarf.h: Add some DWARF3 definitions. + +2005-04-01 Ulrich Drepper + + * dwarf_getfuncs.c: New file. + * dwarf_func_highpc.c: New file. + * dwarf_func_lowpc.c: New file. + * dwarf_func_name.c: New file. + * Makefile.am (libdw_a_SOURCES): Add dwarf_getfuncs.c, + dwarf_func_highpc.c, dwarf_func_lowpc.c, and dwarf_func_name.c. + * libdw.map: Add dwarf_getfuncs, dwarf_func_highpc, dwarf_func_lowpc, + and dwarf_func_name. + * libdw.h: Add prototypes for new functions. + * dwarf_child.c: Use INTUSE and INTDEF to avoid PLTs. + * dwarf_siblingof.c: Likewise. + * dwarf_dieoffset.c: Likewise. + * dwarf_highpc.c: Likewise. + * dwarf_lowpc.c: Likewise. + * libdwP.h: Add prototypes for internal functions. + Define Dwarf_Func_s structure. + +2005-03-29 Ulrich Drepper + + * libdw.h: Add padding in Dwarf_die. + + * dwarf_arrayorder.c: Use INTUSE and INTDEF to avoid PLTs. + * dwarf_attr.c: Likewise. + * dwarf_begin.c: Likewise. + * dwarf_begin_elf.c: Likewise. + * dwarf_bitoffset.c: Likewise. + * dwarf_bitsize.c: Likewise. + * dwarf_bytesize.c: Likewise. + * dwarf_diename.c: Likewise. + * dwarf_formaddr.c: Likewise. + * dwarf_formblock.c: Likewise. + * dwarf_formref.c: Likewise. + * dwarf_formstring.c: Likewise. + * dwarf_formudata.c: Likewise. + * dwarf_getarange_addr.c: Likewise. + * dwarf_getarangeinfo.c: Likewise. + * dwarf_getaranges.c: Likewise. + * dwarf_getloclist.c: Likewise. + * dwarf_getmacros.c: Likewise. + * dwarf_getsrc_die.c: Likewise. + * dwarf_getsrcfiles.c: Likewise. + * dwarf_getsrclines.c: Likewise. + * dwarf_highpc.c: Likewise. + * dwarf_lowpc.c: Likewise. + * dwarf_nextcu.c: Likewise. + * dwarf_offdie.c: Likewise. + * dwarf_siblingof.c: Likewise. + * dwarf_srclang.c: Likewise. + * dwarf_tag.c: Likewise. + * libdw_findcu.c: Likewise. + * libdwP.h: Add prototypes for internal functions. + + * dwarf_addrdie.c: New file. + * dwarf_macro_opcode.c: New file. + * dwarf_macro_param1.c: New file. + * dwarf_macro_param2.c: New file. + * libdw.h: Add declarations. Move Dwarf_Macro definition to libdwP.h. + * libdwP.h: Remove Dwarf_Macro definition. + * Makefile.am (libdw_a_SOURCES): Add dwarf_addrdie.c, + dwarf_macro_opcode.c, dwarf_macro_param1.c, and dwarf_macro_param2.c. + * libdw.map: Add entries for new functions. + +2005-03-21 Ulrich Drepper + + * libdw.h: Handle broken gcc < 4. + +2005-02-15 Ulrich Drepper + + * Makefile (AM_CFLAGS): Add -Wunused -Wextra -Wformat=2. + + * dwarf_begin_elf.c: Fix warnings. + * dwarf_dieoffset.c: Likewise. + * dwarf_end.c: Likewise. + * dwarf_error.c: Likewise. + * dwarf_getpubnames.c: Likewise. + + * libdwP.h: Add new error values. + * dwarf_error.c: Support new error values. + * dwarf_getpubnames.c: Check parameter value. + +2005-02-05 Ulrich Drepper + + * Makefile.am: Check for text relocations in constructed DSO. + + * Makefile.am [MUDFLAP] (AM_CFLAGS): Add -fmudflap. + +2005-02-04 Ulrich Drepper + + * dwarf_siblingof.c (dwarf_siblingof): Add some buffer boundary + checks to not read over buffer boundaries for ill-formed DWARF data. + +2004-09-25 Ulrich Drepper + + * dwarf_child.c: Make compile with gcc 4.0. + * dwarf_error.c: Likewise. + * dwarf_formblock.c: Likewise. + * dwarf_getabbrev.c: Likewise. + * dwarf_getattrs.c: Likewise. + * dwarf_getsrclines.c: Likewise. + * dwarf_tag.c: Likewise. + * libdw_form.c: Likewise. + +2004-01-20 Ulrich Drepper + + * Makefile.am: Support building with mudflap. + + * dwarf_getloclist.c: Fix warnings gcc 3.4 spits out. + * dwarf_getsrclines.c: Likewise. + * dwarf_memory-access.h: Likewise. + +2004-01-19 Ulrich Drepper + + * dwarf_getsrcfiles.c: Third parameter can be NULL. + + * libdw.h: Define Dwarf_macro. Declare dwarf_getmacros. + Third parameter of dwarf_getsrcfiles can be NULL. + + * libdw.map: Add dwarf_getmacros. + * Makefile.am (libdw_a_SOURCES): Add dwarf_getmacros. + * dwarf_getmacros.c: New file. + +2004-01-18 Ulrich Drepper + + * libdw.h: Second parameter of dwarf_getaranges can be NULL. + + * dwarf_nextcu.c: Return -1 if dwarf parameter is NULL. + + * dwarf_getsrclines.c: + Use read_2ubyte_unaligned_inc instead of _inc-less variant. + + * dwarf_getaranges.c: Allow naranges parameter to be NULL. + + * libdwP.h (_): Use elfutils domain. + + * dwarf_getsrclines.c (dwarf_getsrclines): Add more branch prediction. + + * dwarf_getsrclines.c: Fix typo in comment. + +2004-01-17 Ulrich Drepper + + * Makefile.am: Support building with mudflap. + +2004-01-16 Ulrich Drepper + + * memory-access.h: Add lots of const in case a pointer passed is const. + + * dwarf_formflag.c: New file. + * dwarf_getattrs.c: New file. + * dwarf_error.c: Add new error value. + * libdw.h: Add prototypes for new functions. Adjust prototype for + dwarf_getpubnames. + * libdw.map: Add new functions. + * dwarf_getpubnames.c: Change type of return value and fourth parameter + to ptrdiff_t. + * libdwP.h: Add new error value. + * Makefile.am (libdw_a_SOURCES): Add dwarf_getattrs.c and + dwarf_formflag.c. + + * dwarf_getpubnames.c (dwarf_getpubnames): Just fail if dbg is NULL. + +2004-01-12 Ulrich Drepper + + * dwarf_getarange_addr.c: New file + * dwarf_getarangeinfo.c: New file. + * dwarf_getaranges.c: New file. + * dwarf_onerange.c: New file. + * libdw.h: Declare new functions. Define Dwarf_Arange and + Dwarf_Aranges. + * libdw.map: Add new functions. + * libdwP.h: Add new errors. Add aranges member to struct Dwarf. + Define Dwarf_Aranges_s and Dwarf_Arange_s. + * Makefile.am (libdw_a_SOURCES): Add dwarf_getaranges.c, + dwarf_onearange.c, dwarf_getarangeinfo.c, dwarf_getarange_addr.c. + * dwarf_error.c: Add new message. + +2004-01-11 Ulrich Drepper + + * Makefile.am (libdw_a_SOURCES): Add dwarf_lineaddr.c, dwarf_linecol.c, + dwarf_linebeginstatement.c, dwarf_lineendsequence.c, dwarf_lineblock.c, + dwarf_lineprologueend.c, dwarf_lineepiloguebegin.c, dwarf_onesrcline.c. + * dwarf_error.c: Add another message. + * dwarf_getsrc_die.c: Adjust for Dwarf_Files and Dwarf_Lines + introduction. + * dwarf_filesrc.c: Likewise. + * dwarf_getsrcfiles.c: Likewise. + * dwarf_getsrclines.c: Likewise. + * dwarf_lineaddr.c: New file. + * dwarf_linebeginstatement.c: New file. + * dwarf_lineblock.c: New file. + * dwarf_linecol.c: New file. + * dwarf_lineendsequence.c: New file. + * dwarf_lineepiloguebegin.c: New file. + * dwarf_lineno.c: New file. + * dwarf_lineprologueend.c: New file. + * dwarf_onesrcline.c: New file. + * dwarf_lineno.c: Change interface to store result in object pointed + to by second parameter. + * libdw.h: Add prototypes for new functions. Change dwarf_lineno + prototype. Define Dwarf_Files and Dwarf_Lines. + * libdw.map: Add new functions. + * libdwP.h: Define Dwarf_Files_s and Dwarf_Lines_s. + * libdw_findcu.c: Don't initialize nlines field. + + * dwarf_siblingof: Little optimization. + + * dwarf_begin.c: Remember that the ELF descriptor must be closed. + * dwarf_end.c: Close ELF descriptor if free_elf is set. + * libdwP.h (struct Dwarf): Add free_elf field. + + * Makefile.am (libdw_a_SOURCES): Add dwarf_getstring.c and + dwarf_offabbrev.c. + * dwarf_getstring.c: New file. + * dwarf_offabbrev.c: New file. + * libdw.map: Add dwarf_getstring and dwarf_offabbrev. + * dwarf_getabbrev.c (__libdw_getabbrev): Add new dbg and result + parameters. Don't allocate memory if not necessary and don't lookup + previous results if no CU given. + (dwarf_getabbrev): Adjust call to __libdw_getabbrev. + * dwarf_tag.c: Adjust call to __libdw_getabbrev. + * libdw.h: Declare dwarf_offabbrev and dwarf_getstring. + * libdwP.h: Change prototype for __libdw_getabbrev. + + * dwarf_getabbrevattr.c: Add offsetp parameter. Fill in before + returning if this is wanted. + +2004-01-09 Ulrich Drepper + + * dwarf_nextcu.c: Add new parameter offset_sizep. Initialize it + with offset_size value. + * libdw.h: Adjust dwarf_nextcu prototype. + * libdwP.h (struct Dwarf_CU): Add offset_size member. + * libdw_findcu.c: Adjust dwarf_nextcu call. Initialize offset_size + member of new CU struct. + * dwarf_formstring.c: Depend on offset_size not address_size for + DW_FORM_strp handling. + * dwarf_form.c: Likewise for DW_FORM_strp and DW_FORM_ref_addr. + + * dwarf_tag.c (__libdw_findabbrev): Return correct value for + failing lookup. + (dwarf_tag): Correctly recognize failed lookup. + + * dwarf_end.c (cu_free): Call tdestroy for locs member. Use new + function noop_free. + * dwarf_error.c: Add message for DWARF_E_NO_BLOCK. + * dwarf_formblock.c: New file. + * dwarf_getloclist.c: Rewrite to handle a single block. + * libdw.h: Define Dwarf_Block. Rename Dwarf_Loc members. Remove + Dwarf_Locdesc definition. Declare dwarf_formblock. Remove + dwarf_getloclistent declaration. + * libdw.map: Add dwarf_formblock, remove dwarf_getloclistent. + * libdwP.h: Define struct loc_s and DWARF_E_NO_BLOCK. + Add locs member to struct Dwarf_CU. + * libdw_fundcu.c: Initialize locs member of new CU. + * Makefile.am (libdw_a_SOURCES): Add dwarf_formblock.c. + Remove dwarf_getloclistent.c. + +2004-01-07 Ulrich Drepper + + * libdw.h: Use __nonnull__ attribute only for gcc >= 3.3. + * libdwP.h: Likewise. + + * dwarf_getloclist.c: New file. + * dwarf_getloclistent.c: New file. + * libdw.h: Define Dwarf_Loc and Dwarf_Locdesc. + Declare dwarf_getloclistent and dwarf_getloclist. + * libdw.map: Add dwarf_getloclistent and dwarf_getloclist. + * libdwP.h: Define DWARF_E_NO_LOCLIST. + * Makefile.am (libdw_a_SOURCES): Add dwarf_getloclistent.c and + dwarf_getloclist.c. + + * dwarf_error.c: More error messages. + +2004-01-06 Ulrich Drepper + + * dwarf_getsrclines.c: Remove debugging support. + + * dwarf_getsrcfiles.c: New file. + * dwarf_filesrc.c: New file. + * libdw.h: Declare these functions. Define Dwarf_File. + * libdwP.c: Adjust Dwarf_File_s definition. + * libdw.map: Add these functions. + * Makefile.am (libdw_a_SOURCES): Add dwarf_getsrcfiles.c and + dwarf_filesrc.c. + * dwarf_getsrclines.c: Initialize cu->files. + +2004-01-05 Ulrich Drepper + + * libdw.h: Add more nonnull function attributes. + + * dwarf_begin_elf.c (dwarf_begin_elf): Don't initialize mem_tail->next. + * dwarf_end.c (cu_free): New function. + (dwarf_end): Also free CU tree. Correct freeing of memory blocks. + * dwarf_error.c (errmsgs): Add new messages. + * dwarf_getsrc_die.c: New file. + * dwarf_getsrclines.c: New file. + * dwarf_lineno.c: New file. + * dwarf_linesrc.c: New file. + * dwarf_nextcu.c (dwarf_nextcu): Use read_*byte_unaligned_inc + instead of the *_inc-less variants. + * libdw.h: Define Dwarf_Line. Add some function attributes. Declare + dwarf_getsrclines, dwarf_getsrc_die, dwarf_lineno, and dwarf_linesrc. + * libdw.map: Add dwarf_getsrclines, dwarf_getsrc_die, dwarf_lineno, + and dwarf_linesrc. + * libdwP.h: Add more error codes. + (struct Dwarf): Remove mem_tail.next member. + (Dwarf_File): Define type. + (struct Dwarf_Line_s): Define type. + (struct Dwarf_CU): Add lines and nlines members. + (libdw_alloc): Define local variable _tail and use it. + Add some function attributes. + * libdw_alloc.c (__libdw_allocate): Don't initialize next member. + * libdw_findcu.c (__libdw_findcu): Initialize lines and nlines members. + * memory-access.h: Add unlikely for the endian conversion paths. + * Makefile.am (AM_CFLAGS): Add -std parameter. + (libdw_a_SOURCES): Add dwarf_getsrclines, dwarf_getsrc_die, + dwarf_lineno, and dwarf_linesrc. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/libdw/Makefile.am b/libdw/Makefile.am new file mode 100644 index 0000000..17be31d --- /dev/null +++ b/libdw/Makefile.am @@ -0,0 +1,108 @@ +## Process this file with automake to create Makefile.in +## +## Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. +## +## This program is Open Source software; you can redistribute it and/or +## modify it under the terms of the Open Software License version 1.0 as +## published by the Open Source Initiative. +## +## You should have received a copy of the Open Software License along +## with this program; if not, you may obtain a copy of the Open Software +## License version 1.0 from http://www.opensource.org/licenses/osl.php or +## by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +## 3001 King Ranch Road, Ukiah, CA 95482. +## +DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -DIS_LIBDW +if MUDFLAP +AM_CFLAGS = -fmudflap +else +AM_CFLAGS = +endif +AM_CFLAGS += -Wall -Werror -Wshadow -Wunused -Wformat=2 -Wextra -std=gnu99 +INCLUDES = -I. -I$(srcdir) -I$(srcdir)/../libelf -I.. -I$(srcdir)/../lib +VERSION = 1 + +lib_LIBRARIES = libdw.a +if !MUDFLAP +noinst_LIBRARIES = libdw_pic.a +noinst_PROGRAMS = $(noinst_LIBRARIES:_pic.a=.so) +endif + +include_HEADERS = dwarf.h +euincludedir = ${includedir}/elfutils +euinclude_HEADERS = libdw.h + +libdw_a_SOURCES = dwarf_begin.c dwarf_begin_elf.c dwarf_end.c dwarf_getelf.c \ + dwarf_getpubnames.c dwarf_getabbrev.c dwarf_tag.c \ + dwarf_error.c dwarf_nextcu.c dwarf_diename.c dwarf_offdie.c \ + dwarf_attr.c dwarf_formstring.c dwarf_abbrev_hash.c \ + dwarf_attr_integrate.c dwarf_hasattr_integrate.c \ + dwarf_child.c dwarf_haschildren.c dwarf_formaddr.c \ + dwarf_formudata.c dwarf_formsdata.c dwarf_lowpc.c \ + dwarf_haspc.c dwarf_highpc.c \ + dwarf_formref.c dwarf_formref_die.c dwarf_siblingof.c \ + dwarf_dieoffset.c dwarf_cuoffset.c dwarf_hasattr.c \ + dwarf_hasform.c dwarf_whatform.c dwarf_whatattr.c \ + dwarf_bytesize.c dwarf_arrayorder.c dwarf_bitsize.c \ + dwarf_bitoffset.c dwarf_srclang.c dwarf_getabbrevtag.c \ + dwarf_getabbrevcode.c dwarf_abbrevhaschildren.c \ + dwarf_getattrcnt.c dwarf_getabbrevattr.c \ + dwarf_getsrclines.c dwarf_getsrc_die.c \ + dwarf_getscopes.c dwarf_getscopevar.c \ + dwarf_linesrc.c dwarf_lineno.c dwarf_lineaddr.c \ + dwarf_linecol.c dwarf_linebeginstatement.c \ + dwarf_lineendsequence.c dwarf_lineblock.c \ + dwarf_lineprologueend.c dwarf_lineepiloguebegin.c \ + dwarf_onesrcline.c dwarf_formblock.c \ + dwarf_getsrcfiles.c dwarf_filesrc.c \ + dwarf_getloclist.c dwarf_getstring.c dwarf_offabbrev.c \ + dwarf_getaranges.c dwarf_onearange.c dwarf_getarangeinfo.c \ + dwarf_getarange_addr.c dwarf_getattrs.c dwarf_formflag.c \ + dwarf_getmacros.c dwarf_macro_opcode.c dwarf_macro_param1.c \ + dwarf_macro_param2.c dwarf_addrdie.c \ + dwarf_getfuncs.c dwarf_func_name.c dwarf_func_lowpc.c \ + dwarf_func_highpc.c dwarf_func_entrypc.c dwarf_func_file.c \ + dwarf_func_line.c dwarf_func_col.c dwarf_getsrc_file.c \ + libdw_findcu.c libdw_form.c libdw_alloc.c memory-access.c + + +if !MUDFLAP +libdw_pic_a_SOURCES = +am_libdw_pic_a_OBJECTS = $(libdw_a_SOURCES:.c=.os) + +libdw_so_SOURCES = +libdw.so: libdw_pic.a $(srcdir)/libdw.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libdw.map,--no-undefined \ + -Wl,--soname,$@.$(VERSION),-z,defs \ + ../libelf/libelf.so + if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi + ln -fs $@ $@.$(VERSION) + + +%.os: %.c %.o + if $(COMPILE) -c -o $@ -fpic -DPIC -DSHARED -MT $@ -MD -MP \ + -MF "$(DEPDIR)/$*.Tpo" `test -f '$<' || echo '$(srcdir)/'`$<; \ + then cat "$(DEPDIR)/$*.Tpo" >> "$(DEPDIR)/$*.Po"; \ + rm -f "$(DEPDIR)/$*.Tpo"; \ + else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \ + fi + +install: install-am libdw.so + $(mkinstalldirs) $(DESTDIR)$(libdir) + $(INSTALL_PROGRAM) libdw.so $(DESTDIR)$(libdir)/libdw-$(PACKAGE_VERSION).so + ln -fs libdw-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libdw.so.$(VERSION) + ln -fs libdw.so.$(VERSION) $(DESTDIR)$(libdir)/libdw.so + +uninstall: uninstall-am + rm -f $(DESTDIR)$(libdir)/libdw-$(PACKAGE_VERSION).so + rm -f $(DESTDIR)$(libdir)/libdw.so.$(VERSION) + rm -f $(DESTDIR)$(libdir)/libdw.so + rmdir --ignore-fail-on-non-empty $(DESTDIR)$(includedir)/elfutils +endif + +noinst_HEADERS = libdwP.h memory-access.h dwarf_abbrev_hash.h + +EXTRA_DIST = libdw.map + +CLEANFILES = $(am_libdw_pic_a_OBJECTS) diff --git a/libdw/dwarf.h b/libdw/dwarf.h new file mode 100644 index 0000000..ce011aa --- /dev/null +++ b/libdw/dwarf.h @@ -0,0 +1,581 @@ +/* This file defines standard DWARF types, structures, and macros. + Copyright (C) 2000, 2002, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _DWARF_H +#define _DWARF_H 1 + +/* DWARF tags. */ +enum + { + DW_TAG_array_type = 0x01, + DW_TAG_class_type = 0x02, + DW_TAG_entry_point = 0x03, + DW_TAG_enumeration_type = 0x04, + DW_TAG_formal_parameter = 0x05, + DW_TAG_imported_declaration = 0x08, + DW_TAG_label = 0x0a, + DW_TAG_lexical_block = 0x0b, + DW_TAG_member = 0x0d, + DW_TAG_pointer_type = 0x0f, + DW_TAG_reference_type = 0x10, + DW_TAG_compile_unit = 0x11, + DW_TAG_string_type = 0x12, + DW_TAG_structure_type = 0x13, + DW_TAG_subroutine_type = 0x15, + DW_TAG_typedef = 0x16, + DW_TAG_union_type = 0x17, + DW_TAG_unspecified_parameters = 0x18, + DW_TAG_variant = 0x19, + DW_TAG_common_block = 0x1a, + DW_TAG_common_inclusion = 0x1b, + DW_TAG_inheritance = 0x1c, + DW_TAG_inlined_subroutine = 0x1d, + DW_TAG_module = 0x1e, + DW_TAG_ptr_to_member_type = 0x1f, + DW_TAG_set_type = 0x20, + DW_TAG_subrange_type = 0x21, + DW_TAG_with_stmt = 0x22, + DW_TAG_access_declaration = 0x23, + DW_TAG_base_type = 0x24, + DW_TAG_catch_block = 0x25, + DW_TAG_const_type = 0x26, + DW_TAG_constant = 0x27, + DW_TAG_enumerator = 0x28, + DW_TAG_file_type = 0x29, + DW_TAG_friend = 0x2a, + DW_TAG_namelist = 0x2b, + DW_TAG_namelist_item = 0x2c, + DW_TAG_packed_type = 0x2d, + DW_TAG_subprogram = 0x2e, + DW_TAG_template_type_param = 0x2f, + DW_TAG_template_value_param = 0x30, + DW_TAG_thrown_type = 0x31, + DW_TAG_try_block = 0x32, + DW_TAG_variant_part = 0x33, + DW_TAG_variable = 0x34, + DW_TAG_volatile_type = 0x35, + DW_TAG_dwarf_procedure = 0x36, + DW_TAG_restrict_type = 0x37, + DW_TAG_interface_type = 0x38, + DW_TAG_namespace = 0x39, + DW_TAG_imported_module = 0x3a, + DW_TAG_unspecified_type = 0x3b, + DW_TAG_partial_unit = 0x3c, + DW_TAG_imported_unit = 0x3d, + DW_TAG_mutable_type = 0x3e, + DW_TAG_lo_user = 0x4080, + DW_TAG_MIPS_loop = 0x4081, + DW_TAG_format_label = 0x4101, + DW_TAG_function_template = 0x4102, + DW_TAG_class_template = 0x4103, + DW_TAG_hi_user = 0xffff + }; + + +/* Children determination encodings. */ +enum + { + DW_CHILDREN_no = 0, + DW_CHILDREN_yes = 1 + }; + + +/* DWARF attributes encodings. */ +enum + { + DW_AT_sibling = 0x01, + DW_AT_location = 0x02, + DW_AT_name = 0x03, + DW_AT_ordering = 0x09, + DW_AT_subscr_data = 0x0a, + DW_AT_byte_size = 0x0b, + DW_AT_bit_offset = 0x0c, + DW_AT_bit_size = 0x0d, + DW_AT_element_list = 0x0f, + DW_AT_stmt_list = 0x10, + DW_AT_low_pc = 0x11, + DW_AT_high_pc = 0x12, + DW_AT_language = 0x13, + DW_AT_member = 0x14, + DW_AT_discr = 0x15, + DW_AT_discr_value = 0x16, + DW_AT_visibility = 0x17, + DW_AT_import = 0x18, + DW_AT_string_length = 0x19, + DW_AT_common_reference = 0x1a, + DW_AT_comp_dir = 0x1b, + DW_AT_const_value = 0x1c, + DW_AT_containing_type = 0x1d, + DW_AT_default_value = 0x1e, + DW_AT_inline = 0x20, + DW_AT_is_optional = 0x21, + DW_AT_lower_bound = 0x22, + DW_AT_producer = 0x25, + DW_AT_prototyped = 0x27, + DW_AT_return_addr = 0x2a, + DW_AT_start_scope = 0x2c, + DW_AT_stride_size = 0x2e, + DW_AT_upper_bound = 0x2f, + DW_AT_abstract_origin = 0x31, + DW_AT_accessibility = 0x32, + DW_AT_address_class = 0x33, + DW_AT_artificial = 0x34, + DW_AT_base_types = 0x35, + DW_AT_calling_convention = 0x36, + DW_AT_count = 0x37, + DW_AT_data_member_location = 0x38, + DW_AT_decl_column = 0x39, + DW_AT_decl_file = 0x3a, + DW_AT_decl_line = 0x3b, + DW_AT_declaration = 0x3c, + DW_AT_discr_list = 0x3d, + DW_AT_encoding = 0x3e, + DW_AT_external = 0x3f, + DW_AT_frame_base = 0x40, + DW_AT_friend = 0x41, + DW_AT_identifier_case = 0x42, + DW_AT_macro_info = 0x43, + DW_AT_namelist_items = 0x44, + DW_AT_priority = 0x45, + DW_AT_segment = 0x46, + DW_AT_specification = 0x47, + DW_AT_static_link = 0x48, + DW_AT_type = 0x49, + DW_AT_use_location = 0x4a, + DW_AT_variable_parameter = 0x4b, + DW_AT_virtuality = 0x4c, + DW_AT_vtable_elem_location = 0x4d, + DW_AT_allocated = 0x4e, + DW_AT_associated = 0x4f, + DW_AT_data_location = 0x50, + DW_AT_stride = 0x51, + DW_AT_entry_pc = 0x52, + DW_AT_use_UTF8 = 0x53, + DW_AT_extension = 0x54, + DW_AT_ranges = 0x55, + DW_AT_trampoline = 0x56, + DW_AT_call_column = 0x57, + DW_AT_call_file = 0x58, + DW_AT_call_line = 0x59, + DW_AT_description = 0x5a, + DW_AT_lo_user = 0x2000, + DW_AT_MIPS_fde = 0x2001, + DW_AT_MIPS_loop_begin = 0x2002, + DW_AT_MIPS_tail_loop_begin = 0x2003, + DW_AT_MIPS_epilog_begin = 0x2004, + DW_AT_MIPS_loop_unroll_factor = 0x2005, + DW_AT_MIPS_software_pipeline_depth = 0x2006, + DW_AT_MIPS_linkage_name = 0x2007, + DW_AT_MIPS_stride = 0x2008, + DW_AT_MIPS_abstract_name = 0x2009, + DW_AT_MIPS_clone_origin = 0x200a, + DW_AT_MIPS_has_inlines = 0x200b, + DW_AT_MIPS_stride_byte = 0x200c, + DW_AT_MIPS_stride_elem = 0x200d, + DW_AT_MIPS_ptr_dopetype = 0x200e, + DW_AT_MIPS_allocatable_dopetype = 0x200f, + DW_AT_MIPS_assumed_shape_dopetype = 0x2010, + DW_AT_MIPS_assumed_size = 0x2011, + DW_AT_sf_names = 0x2101, + DW_AT_src_info = 0x2102, + DW_AT_mac_info = 0x2103, + DW_AT_src_coords = 0x2104, + DW_AT_body_begin = 0x2105, + DW_AT_body_end = 0x2106, + DW_AT_hi_user = 0x3fff + }; + + +/* DWARF form encodings. */ +enum + { + DW_FORM_addr = 0x01, + DW_FORM_block2 = 0x03, + DW_FORM_block4 = 0x04, + DW_FORM_data2 = 0x05, + DW_FORM_data4 = 0x06, + DW_FORM_data8 = 0x07, + DW_FORM_string = 0x08, + DW_FORM_block = 0x09, + DW_FORM_block1 = 0x0a, + DW_FORM_data1 = 0x0b, + DW_FORM_flag = 0x0c, + DW_FORM_sdata = 0x0d, + DW_FORM_strp = 0x0e, + DW_FORM_udata = 0x0f, + DW_FORM_ref_addr = 0x10, + DW_FORM_ref1 = 0x11, + DW_FORM_ref2 = 0x12, + DW_FORM_ref4 = 0x13, + DW_FORM_ref8 = 0x14, + DW_FORM_ref_udata = 0x15, + DW_FORM_indirect = 0x16 + }; + + +/* DWARF location operation encodings. */ +enum + { + DW_OP_addr = 0x03, /* Constant address. */ + DW_OP_deref = 0x06, + DW_OP_const1u = 0x08, /* Unsigned 1-byte constant. */ + DW_OP_const1s = 0x09, /* Signed 1-byte constant. */ + DW_OP_const2u = 0x0a, /* Unsigned 2-byte constant. */ + DW_OP_const2s = 0x0b, /* Signed 2-byte constant. */ + DW_OP_const4u = 0x0c, /* Unsigned 4-byte constant. */ + DW_OP_const4s = 0x0d, /* Signed 4-byte constant. */ + DW_OP_const8u = 0x0e, /* Unsigned 8-byte constant. */ + DW_OP_const8s = 0x0f, /* Signed 8-byte constant. */ + DW_OP_constu = 0x10, /* Unsigned LEB128 constant. */ + DW_OP_consts = 0x11, /* Signed LEB128 constant. */ + DW_OP_dup = 0x12, + DW_OP_drop = 0x13, + DW_OP_over = 0x14, + DW_OP_pick = 0x15, /* 1-byte stack index. */ + DW_OP_swap = 0x16, + DW_OP_rot = 0x17, + DW_OP_xderef = 0x18, + DW_OP_abs = 0x19, + DW_OP_and = 0x1a, + DW_OP_div = 0x1b, + DW_OP_minus = 0x1c, + DW_OP_mod = 0x1d, + DW_OP_mul = 0x1e, + DW_OP_neg = 0x1f, + DW_OP_not = 0x20, + DW_OP_or = 0x21, + DW_OP_plus = 0x22, + DW_OP_plus_uconst = 0x23, /* Unsigned LEB128 addend. */ + DW_OP_shl = 0x24, + DW_OP_shr = 0x25, + DW_OP_shra = 0x26, + DW_OP_xor = 0x27, + DW_OP_bra = 0x28, /* Signed 2-byte constant. */ + DW_OP_eq = 0x29, + DW_OP_ge = 0x2a, + DW_OP_gt = 0x2b, + DW_OP_le = 0x2c, + DW_OP_lt = 0x2d, + DW_OP_ne = 0x2e, + DW_OP_skip = 0x2f, /* Signed 2-byte constant. */ + DW_OP_lit0 = 0x30, /* Literal 0. */ + DW_OP_lit1 = 0x31, /* Literal 1. */ + DW_OP_lit2 = 0x32, /* Literal 2. */ + DW_OP_lit3 = 0x33, /* Literal 3. */ + DW_OP_lit4 = 0x34, /* Literal 4. */ + DW_OP_lit5 = 0x35, /* Literal 5. */ + DW_OP_lit6 = 0x36, /* Literal 6. */ + DW_OP_lit7 = 0x37, /* Literal 7. */ + DW_OP_lit8 = 0x38, /* Literal 8. */ + DW_OP_lit9 = 0x39, /* Literal 9. */ + DW_OP_lit10 = 0x3a, /* Literal 10. */ + DW_OP_lit11 = 0x3b, /* Literal 11. */ + DW_OP_lit12 = 0x3c, /* Literal 12. */ + DW_OP_lit13 = 0x3d, /* Literal 13. */ + DW_OP_lit14 = 0x3e, /* Literal 14. */ + DW_OP_lit15 = 0x3f, /* Literal 15. */ + DW_OP_lit16 = 0x40, /* Literal 16. */ + DW_OP_lit17 = 0x41, /* Literal 17. */ + DW_OP_lit18 = 0x42, /* Literal 18. */ + DW_OP_lit19 = 0x43, /* Literal 19. */ + DW_OP_lit20 = 0x44, /* Literal 20. */ + DW_OP_lit21 = 0x45, /* Literal 21. */ + DW_OP_lit22 = 0x46, /* Literal 22. */ + DW_OP_lit23 = 0x47, /* Literal 23. */ + DW_OP_lit24 = 0x48, /* Literal 24. */ + DW_OP_lit25 = 0x49, /* Literal 25. */ + DW_OP_lit26 = 0x4a, /* Literal 26. */ + DW_OP_lit27 = 0x4b, /* Literal 27. */ + DW_OP_lit28 = 0x4c, /* Literal 28. */ + DW_OP_lit29 = 0x4d, /* Literal 29. */ + DW_OP_lit30 = 0x4e, /* Literal 30. */ + DW_OP_lit31 = 0x4f, /* Literal 31. */ + DW_OP_reg0 = 0x50, /* Register 0. */ + DW_OP_reg1 = 0x51, /* Register 1. */ + DW_OP_reg2 = 0x52, /* Register 2. */ + DW_OP_reg3 = 0x53, /* Register 3. */ + DW_OP_reg4 = 0x54, /* Register 4. */ + DW_OP_reg5 = 0x55, /* Register 5. */ + DW_OP_reg6 = 0x56, /* Register 6. */ + DW_OP_reg7 = 0x57, /* Register 7. */ + DW_OP_reg8 = 0x58, /* Register 8. */ + DW_OP_reg9 = 0x59, /* Register 9. */ + DW_OP_reg10 = 0x5a, /* Register 10. */ + DW_OP_reg11 = 0x5b, /* Register 11. */ + DW_OP_reg12 = 0x5c, /* Register 12. */ + DW_OP_reg13 = 0x5d, /* Register 13. */ + DW_OP_reg14 = 0x5e, /* Register 14. */ + DW_OP_reg15 = 0x5f, /* Register 15. */ + DW_OP_reg16 = 0x60, /* Register 16. */ + DW_OP_reg17 = 0x61, /* Register 17. */ + DW_OP_reg18 = 0x62, /* Register 18. */ + DW_OP_reg19 = 0x63, /* Register 19. */ + DW_OP_reg20 = 0x64, /* Register 20. */ + DW_OP_reg21 = 0x65, /* Register 21. */ + DW_OP_reg22 = 0x66, /* Register 22. */ + DW_OP_reg23 = 0x67, /* Register 24. */ + DW_OP_reg24 = 0x68, /* Register 24. */ + DW_OP_reg25 = 0x69, /* Register 25. */ + DW_OP_reg26 = 0x6a, /* Register 26. */ + DW_OP_reg27 = 0x6b, /* Register 27. */ + DW_OP_reg28 = 0x6c, /* Register 28. */ + DW_OP_reg29 = 0x6d, /* Register 29. */ + DW_OP_reg30 = 0x6e, /* Register 30. */ + DW_OP_reg31 = 0x6f, /* Register 31. */ + DW_OP_breg0 = 0x70, /* Base register 0. */ + DW_OP_breg1 = 0x71, /* Base register 1. */ + DW_OP_breg2 = 0x72, /* Base register 2. */ + DW_OP_breg3 = 0x73, /* Base register 3. */ + DW_OP_breg4 = 0x74, /* Base register 4. */ + DW_OP_breg5 = 0x75, /* Base register 5. */ + DW_OP_breg6 = 0x76, /* Base register 6. */ + DW_OP_breg7 = 0x77, /* Base register 7. */ + DW_OP_breg8 = 0x78, /* Base register 8. */ + DW_OP_breg9 = 0x79, /* Base register 9. */ + DW_OP_breg10 = 0x7a, /* Base register 10. */ + DW_OP_breg11 = 0x7b, /* Base register 11. */ + DW_OP_breg12 = 0x7c, /* Base register 12. */ + DW_OP_breg13 = 0x7d, /* Base register 13. */ + DW_OP_breg14 = 0x7e, /* Base register 14. */ + DW_OP_breg15 = 0x7f, /* Base register 15. */ + DW_OP_breg16 = 0x80, /* Base register 16. */ + DW_OP_breg17 = 0x81, /* Base register 17. */ + DW_OP_breg18 = 0x82, /* Base register 18. */ + DW_OP_breg19 = 0x83, /* Base register 19. */ + DW_OP_breg20 = 0x84, /* Base register 20. */ + DW_OP_breg21 = 0x85, /* Base register 21. */ + DW_OP_breg22 = 0x86, /* Base register 22. */ + DW_OP_breg23 = 0x87, /* Base register 23. */ + DW_OP_breg24 = 0x88, /* Base register 24. */ + DW_OP_breg25 = 0x89, /* Base register 25. */ + DW_OP_breg26 = 0x8a, /* Base register 26. */ + DW_OP_breg27 = 0x8b, /* Base register 27. */ + DW_OP_breg28 = 0x8c, /* Base register 28. */ + DW_OP_breg29 = 0x8d, /* Base register 29. */ + DW_OP_breg30 = 0x8e, /* Base register 30. */ + DW_OP_breg31 = 0x8f, /* Base register 31. */ + DW_OP_regx = 0x90, /* Unsigned LEB128 register. */ + DW_OP_fbreg = 0x91, /* Signed LEB128 register. */ + DW_OP_bregx = 0x92, /* ULEB128 register followed by SLEB128 off. */ + DW_OP_piece = 0x93, /* ULEB128 size of piece addressed. */ + DW_OP_deref_size = 0x94, /* 1-byte size of data retrieved. */ + DW_OP_xderef_size = 0x95, /* 1-byte size of data retrieved. */ + DW_OP_nop = 0x96, + DW_OP_push_object_address = 0x97, + DW_OP_call2 = 0x98, + DW_OP_call4 = 0x99, + DW_OP_call_ref = 0x9a, + + DW_OP_lo_user = 0xe0, /* Implementation-defined range start. */ + DW_OP_hi_user = 0xff /* Implementation-defined range end. */ + }; + + +/* DWARF base type encodings. */ +enum + { + DW_ATE_void = 0x0, + DW_ATE_address = 0x1, + DW_ATE_boolean = 0x2, + DW_ATE_complex_float = 0x3, + DW_ATE_float = 0x4, + DW_ATE_signed = 0x5, + DW_ATE_signed_char = 0x6, + DW_ATE_unsigned = 0x7, + DW_ATE_unsigned_char = 0x8, + DW_ATE_imaginary_float = 0x9, + + DW_ATE_lo_user = 0x80, + DW_ATE_hi_user = 0xff + }; + + +/* DWARF accessibility encodings. */ +enum + { + DW_ACCESS_public = 1, + DW_ACCESS_protected = 2, + DW_ACCESS_private = 3 + }; + + +/* DWARF visibility encodings. */ +enum + { + DW_VIS_local = 1, + DW_VIS_exported = 2, + DW_VIS_qualified = 3 + }; + + +/* DWARF virtuality encodings. */ +enum + { + DW_VIRTUALITY_none = 0, + DW_VIRTUALITY_virtual = 1, + DW_VIRTUALITY_pure_virtual = 2 + }; + + +/* DWARF language encodings. */ +enum + { + DW_LANG_C89 = 0x0001, + DW_LANG_C = 0x0002, + DW_LANG_Ada83 = 0x0003, + DW_LANG_C_plus_plus = 0x0004, + DW_LANG_Cobol74 = 0x0005, + DW_LANG_Cobol85 = 0x0006, + DW_LANG_Fortran77 = 0x0007, + DW_LANG_Fortran90 = 0x0008, + DW_LANG_Pascal83 = 0x0009, + DW_LANG_Modula2 = 0x000a, + DW_LANG_Java = 0x000b, + DW_LANG_C99 = 0x000c, + DW_LANG_Ada95 = 0x000d, + DW_LANG_Fortran95 = 0x000e, + DW_LANG_PL1 = 0x000f, + DW_LANG_lo_user = 0x8000, + DW_LANG_Mips_Assembler = 0x8001, + DW_LANG_hi_user = 0xffff + }; + + +/* DWARF identifier case encodings. */ +enum + { + DW_ID_case_sensitive = 0, + DW_ID_up_case = 1, + DW_ID_down_case = 2, + DW_ID_case_insensitive = 3 + }; + + +/* DWARF calling conventions encodings. */ +enum + { + DW_CC_normal = 0x1, + DW_CC_program = 0x2, + DW_CC_nocall = 0x3, + DW_CC_lo_user = 0x40, + DW_CC_hi_user = 0xff + }; + + +/* DWARF inline encodings. */ +enum + { + DW_INL_not_inlined = 0, + DW_INL_inlined = 1, + DW_INL_declared_not_inlined = 2, + DW_INL_declared_inlined = 3 + }; + + +/* DWARF ordering encodings. */ +enum + { + DW_ORD_row_major = 0, + DW_ORD_col_major = 1 + }; + + +/* DWARF discriminant descriptor encodings. */ +enum + { + DW_DSC_label = 0, + DW_DSC_range = 1 + }; + + +/* DWARF standard opcode encodings. */ +enum + { + DW_LNS_copy = 1, + DW_LNS_advance_pc = 2, + DW_LNS_advance_line = 3, + DW_LNS_set_file = 4, + DW_LNS_set_column = 5, + DW_LNS_negate_stmt = 6, + DW_LNS_set_basic_block = 7, + DW_LNS_const_add_pc = 8, + DW_LNS_fixed_advance_pc = 9, + DW_LNS_set_prologue_end = 10, + DW_LNS_set_epilog_begin = 11, + DW_LNS_set_isa = 12 + }; + + +/* DWARF extended opcide encodings. */ +enum + { + DW_LNE_end_sequence = 1, + DW_LNE_set_address = 2, + DW_LNE_define_file = 3, + + DW_LNE_lo_user = 128, + DW_LNE_hi_user = 255 + }; + + +/* DWARF macinfo type encodings. */ +enum + { + DW_MACINFO_define = 1, + DW_MACINFO_undef = 2, + DW_MACINFO_start_file = 3, + DW_MACINFO_end_file = 4, + DW_MACINFO_vendor_ext = 255 + }; + + +/* DWARF call frame instruction encodings. */ +enum + { + DW_CFA_advance_loc = 0x40, + DW_CFA_offset = 0x80, + DW_CFA_restore = 0xc0, + DW_CFA_extended = 0, + + DW_CFA_nop = 0x00, + DW_CFA_set_loc = 0x01, + DW_CFA_advance_loc1 = 0x02, + DW_CFA_advance_loc2 = 0x03, + DW_CFA_advance_loc4 = 0x04, + DW_CFA_offset_extended = 0x05, + DW_CFA_restore_extended = 0x06, + DW_CFA_undefined = 0x07, + DW_CFA_same_value = 0x08, + DW_CFA_register = 0x09, + DW_CFA_remember_state = 0x0a, + DW_CFA_restore_state = 0x0b, + DW_CFA_def_cfa = 0x0c, + DW_CFA_def_cfa_register = 0x0d, + DW_CFA_def_cfa_offset = 0x0e, + DW_CFA_def_cfa_expression = 0x0f, + DW_CFA_expression = 0x10, + DW_CFA_offset_extended_sf = 0x11, + DW_CFA_def_cfa_sf = 0x12, + DW_CFA_def_cfa_offset_sf = 0x13, + DW_CFA_low_user = 0x1c, + DW_CFA_MIPS_advance_loc8 = 0x1d, + DW_CFA_GNU_window_save = 0x2d, + DW_CFA_GNU_args_size = 0x2e, + DW_CFA_high_user = 0x3f + }; + + +/* DWARF XXX. */ +#define DW_ADDR_none 0 + +#endif /* dwarf.h */ diff --git a/libdw/dwarf_abbrev_hash.c b/libdw/dwarf_abbrev_hash.c new file mode 100644 index 0000000..009e757 --- /dev/null +++ b/libdw/dwarf_abbrev_hash.c @@ -0,0 +1,29 @@ +/* Implementation of hash table for DWARF .debug_abbrev section content. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#define NO_UNDEF +#include "libdwP.h" + +#define next_prime __libdwarf_next_prime +extern size_t next_prime (size_t) attribute_hidden; + +#include + +#undef next_prime +#define next_prime attribute_hidden __libdwarf_next_prime +#include "../lib/next_prime.c" diff --git a/libdw/dwarf_abbrev_hash.h b/libdw/dwarf_abbrev_hash.h new file mode 100644 index 0000000..ef3cc48 --- /dev/null +++ b/libdw/dwarf_abbrev_hash.h @@ -0,0 +1,24 @@ +/* Hash table for DWARF .debug_abbrev section content. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _DWARF_ABBREV_HASH_H +#define _DWARF_ABBREV_HASH_H 1 + +#define NAME Dwarf_Abbrev_Hash +#define TYPE Dwarf_Abbrev * +#define COMPARE(a, b) (0) + +#include + +#endif /* dwarf_abbrev_hash.h */ diff --git a/libdw/dwarf_abbrevhaschildren.c b/libdw/dwarf_abbrevhaschildren.c new file mode 100644 index 0000000..2261b2f --- /dev/null +++ b/libdw/dwarf_abbrevhaschildren.c @@ -0,0 +1,29 @@ +/* Return true if abbreviation is children flag set. + Copyright (C) 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libdwP.h" + + +int +dwarf_abbrevhaschildren (abbrev) + Dwarf_Abbrev *abbrev; +{ + return abbrev == NULL ? -1 : abbrev->has_children; +} diff --git a/libdw/dwarf_addrdie.c b/libdw/dwarf_addrdie.c new file mode 100644 index 0000000..c3fd466 --- /dev/null +++ b/libdw/dwarf_addrdie.c @@ -0,0 +1,39 @@ +/* Return CU DIE containing given address. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +Dwarf_Die * +dwarf_addrdie (dbg, addr, result) + Dwarf *dbg; + Dwarf_Addr addr; + Dwarf_Die *result; +{ + Dwarf_Aranges *aranges; + size_t naranges; + Dwarf_Off off; + + if (INTUSE(dwarf_getaranges) (dbg, &aranges, &naranges) != 0 + || INTUSE(dwarf_getarangeinfo) (INTUSE(dwarf_getarange_addr) (aranges, + addr), + NULL, NULL, &off) != 0) + return NULL; + + return INTUSE(dwarf_offdie) (dbg, off, result); +} diff --git a/libdw/dwarf_arrayorder.c b/libdw/dwarf_arrayorder.c new file mode 100644 index 0000000..a1ea09f --- /dev/null +++ b/libdw/dwarf_arrayorder.c @@ -0,0 +1,33 @@ +/* Return array order attribute of DIE. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_arrayorder (die) + Dwarf_Die *die; +{ + Dwarf_Attribute attr_mem; + Dwarf_Word value; + + return INTUSE(dwarf_formudata) (INTUSE(dwarf_attr) (die, DW_AT_ordering, + &attr_mem), + &value) == 0 ? (int) value : -1; +} diff --git a/libdw/dwarf_attr.c b/libdw/dwarf_attr.c new file mode 100644 index 0000000..8ebbb8f --- /dev/null +++ b/libdw/dwarf_attr.c @@ -0,0 +1,40 @@ +/* Return specific DWARF attribute of a DIE. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +Dwarf_Attribute * +dwarf_attr (die, search_name, result) + Dwarf_Die *die; + unsigned int search_name; + Dwarf_Attribute *result; +{ + if (die == NULL) + return NULL; + + /* Search for the attribute with the given name. */ + result->valp = __libdw_find_attr (die, search_name, &result->code, + &result->form); + /* Always fill in the CU information. */ + result->cu = die->cu; + + return result->code == search_name ? result : NULL; +} +INTDEF(dwarf_attr) diff --git a/libdw/dwarf_attr_integrate.c b/libdw/dwarf_attr_integrate.c new file mode 100644 index 0000000..4b27296 --- /dev/null +++ b/libdw/dwarf_attr_integrate.c @@ -0,0 +1,43 @@ +/* Return specific DWARF attribute of a DIE, integrating DW_AT_abstract_origin. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + +Dwarf_Attribute * +dwarf_attr_integrate (Dwarf_Die *die, unsigned int search_name, + Dwarf_Attribute *result) +{ + Dwarf_Die die_mem; + + do + { + Dwarf_Attribute *attr = INTUSE(dwarf_attr) (die, search_name, result); + if (attr != NULL) + return attr; + + attr = INTUSE(dwarf_attr) (die, DW_AT_abstract_origin, result); + if (attr == NULL) + break; + + die = INTUSE(dwarf_formref_die) (attr, &die_mem); + } + while (die != NULL); + + return NULL; +} +INTDEF (dwarf_attr_integrate) diff --git a/libdw/dwarf_begin.c b/libdw/dwarf_begin.c new file mode 100644 index 0000000..70a1b07 --- /dev/null +++ b/libdw/dwarf_begin.c @@ -0,0 +1,85 @@ +/* Create descriptor from file descriptor for processing file. + Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include + + +Dwarf * +dwarf_begin (fd, cmd) + int fd; + Dwarf_Cmd cmd; +{ + Elf *elf; + Elf_Cmd elfcmd; + Dwarf *result = NULL; + + switch (cmd) + { + case DWARF_C_READ: + elfcmd = ELF_C_READ_MMAP; + break; + case DWARF_C_WRITE: + elfcmd = ELF_C_WRITE; + break; + case DWARF_C_RDWR: + elfcmd = ELF_C_RDWR; + break; + default: + /* No valid mode. */ + __libdw_seterrno (DWARF_E_INVALID_CMD); + return NULL; + } + + /* We have to call `elf_version' here since the user might have not + done it or initialized libelf with a different version. This + would break libdwarf since we are using the ELF data structures + in a certain way. */ + elf_version (EV_CURRENT); + + /* Get an ELF descriptor. */ + elf = elf_begin (fd, elfcmd, NULL); + if (elf == NULL) + { + /* Test why the `elf_begin" call failed. */ + struct stat64 st; + + if (fstat64 (fd, &st) == 0 && ! S_ISREG (st.st_mode)) + __libdw_seterrno (DWARF_E_NO_REGFILE); + else if (errno == EBADF) + __libdw_seterrno (DWARF_E_INVALID_FILE); + else + __libdw_seterrno (DWARF_E_IO_ERROR); + } + else + { + /* Do the real work now that we have an ELF descriptor. */ + result = INTUSE(dwarf_begin_elf) (elf, cmd, NULL); + + /* If this failed, free the resources. */ + if (result == NULL) + elf_end (elf); + else + result->free_elf = true; + } + + return result; +} diff --git a/libdw/dwarf_begin_elf.c b/libdw/dwarf_begin_elf.c new file mode 100644 index 0000000..427ffc3 --- /dev/null +++ b/libdw/dwarf_begin_elf.c @@ -0,0 +1,252 @@ +/* Create descriptor from ELF descriptor for processing file. + Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include + +#include "libdwP.h" + + +/* Section names. */ +static const char dwarf_scnnames[IDX_last][17] = +{ + [IDX_debug_info] = ".debug_info", + [IDX_debug_abbrev] = ".debug_abbrev", + [IDX_debug_aranges] = ".debug_aranges", + [IDX_debug_line] = ".debug_line", + [IDX_debug_frame] = ".debug_frame", + [IDX_eh_frame] = ".eh_frame", + [IDX_debug_loc] = ".debug_loc", + [IDX_debug_pubnames] = ".debug_pubnames", + [IDX_debug_str] = ".debug_str", + [IDX_debug_funcnames] = ".debug_funcnames", + [IDX_debug_typenames] = ".debug_typenames", + [IDX_debug_varnames] = ".debug_varnames", + [IDX_debug_weaknames] = ".debug_weaknames", + [IDX_debug_macinfo] = ".debug_macinfo", + [IDX_debug_ranges] = ".debug_ranges" +}; +#define ndwarf_scnnames (sizeof (dwarf_scnnames) / sizeof (dwarf_scnnames[0])) + + +static void +check_section (Dwarf *result, GElf_Ehdr *ehdr, Elf_Scn *scn, bool inscngrp) +{ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + /* Get the section header data. */ + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + /* This should never happen. If it does something is + wrong in the libelf library. */ + abort (); + + + /* Make sure the section is part of a section group only iff we + really need it. If we are looking for the global (= non-section + group debug info) we have to ignore all the info in section + groups. If we are looking into a section group we cannot look at + a section which isn't part of the section group. */ + if (! inscngrp && (shdr->sh_flags & SHF_GROUP) != 0) + /* Ignore the section. */ + return; + + + /* We recognize the DWARF section by their names. This is not very + safe and stable but the best we can do. */ + const char *scnname = elf_strptr (result->elf, ehdr->e_shstrndx, + shdr->sh_name); + if (scnname == NULL) + { + /* The section name must be valid. Otherwise is the ELF file + invalid. */ + __libdw_seterrno (DWARF_E_INVALID_ELF); + free (result); + return; + } + + + /* Recognize the various sections. Most names start with .debug_. */ + size_t cnt; + for (cnt = 0; cnt < ndwarf_scnnames; ++cnt) + if (strcmp (scnname, dwarf_scnnames[cnt]) == 0) + { + /* Found it. Remember where the data is. */ + if (unlikely (result->sectiondata[cnt] != NULL)) + /* A section appears twice. That's bad. We ignore the section. */ + break; + + /* Get the section data. */ + Elf_Data *data = elf_getdata (scn, NULL); + if (data != NULL && data->d_size != 0) + /* Yep, there is actually data available. */ + result->sectiondata[cnt] = data; + + break; + } +} + + +/* Check whether all the necessary DWARF information is available. */ +static Dwarf * +valid_p (Dwarf *result) +{ + /* We looked at all the sections. Now determine whether all the + sections with debugging information we need are there. + + XXX Which sections are absolutely necessary? Add tests if + necessary. For now we require only .debug_info. Hopefully this + is correct. */ + if (unlikely (result->sectiondata[IDX_debug_info] == NULL)) + { + __libdw_seterrno (DWARF_E_NO_DWARF); + result = NULL; + } + + return result; +} + + +static Dwarf * +global_read (Dwarf *result, Elf *elf, GElf_Ehdr *ehdr) +{ + Elf_Scn *scn = NULL; + + while ((scn = elf_nextscn (elf, scn)) != NULL) + check_section (result, ehdr, scn, false); + + return valid_p (result); +} + + +static Dwarf * +scngrp_read (Dwarf *result, Elf *elf, GElf_Ehdr *ehdr, Elf_Scn *scngrp) +{ + /* SCNGRP is the section descriptor for a section group which might + contain debug sections. */ + Elf_Data *data = elf_getdata (scngrp, NULL); + if (data == NULL) + { + /* We cannot read the section content. Fail! */ + free (result); + return NULL; + } + + /* The content of the section is a number of 32-bit words which + represent section indices. The first word is a flag word. */ + Elf32_Word *scnidx = (Elf32_Word *) data->d_buf; + size_t cnt; + for (cnt = 1; cnt * sizeof (Elf32_Word) <= data->d_size; ++cnt) + { + Elf_Scn *scn = elf_getscn (elf, scnidx[cnt]); + if (scn == NULL) + { + /* A section group refers to a non-existing section. Should + never happen. */ + __libdw_seterrno (DWARF_E_INVALID_ELF); + free (result); + return NULL; + } + + check_section (result, ehdr, scn, true); + } + + return valid_p (result); +} + + +Dwarf * +dwarf_begin_elf (elf, cmd, scngrp) + Elf *elf; + Dwarf_Cmd cmd; + Elf_Scn *scngrp; +{ + GElf_Ehdr *ehdr; + GElf_Ehdr ehdr_mem; + + /* Get the ELF header of the file. We need various pieces of + information from it. */ + ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + { + if (elf_kind (elf) != ELF_K_ELF) + __libdw_seterrno (DWARF_E_NOELF); + else + __libdw_seterrno (DWARF_E_GETEHDR_ERROR); + + return NULL; + } + + + /* Default memory allocation size. */ + size_t mem_default_size = sysconf (_SC_PAGESIZE) - 4 * sizeof (void *); + + /* Allocate the data structure. */ + Dwarf *result = (Dwarf *) calloc (1, sizeof (Dwarf) + mem_default_size); + if (result == NULL) + { + __libdw_seterrno (DWARF_E_NOMEM); + return NULL; + } + + /* Fill in some values. */ + if ((BYTE_ORDER == LITTLE_ENDIAN && ehdr->e_ident[EI_DATA] == ELFDATA2MSB) + || (BYTE_ORDER == BIG_ENDIAN && ehdr->e_ident[EI_DATA] == ELFDATA2LSB)) + result->other_byte_order = true; + + result->elf = elf; + + /* Initialize the memory handling. */ + result->mem_default_size = mem_default_size; + result->oom_handler = __libdw_oom; + result->mem_tail = (struct libdw_memblock *) (result + 1); + result->mem_tail->size = (result->mem_default_size + - offsetof (struct libdw_memblock, mem)); + result->mem_tail->remaining = result->mem_tail->size; + result->mem_tail->prev = NULL; + + + if (cmd == DWARF_C_READ || cmd == DWARF_C_RDWR) + { + /* If the caller provides a section group we get the DWARF + sections only from this setion group. Otherwise we search + for the first section with the required name. Further + sections with the name are ignored. The DWARF specification + does not really say this is allowed. */ + if (scngrp == NULL) + return global_read (result, elf, ehdr); + else + return scngrp_read (result, elf, ehdr, scngrp); + } + else if (cmd == DWARF_C_WRITE) + { + __libdw_seterrno (DWARF_E_UNIMPL); + free (result); + return NULL; + } + + __libdw_seterrno (DWARF_E_INVALID_CMD); + free (result); + return NULL; +} +INTDEF(dwarf_begin_elf) diff --git a/libdw/dwarf_bitoffset.c b/libdw/dwarf_bitoffset.c new file mode 100644 index 0000000..52ab175 --- /dev/null +++ b/libdw/dwarf_bitoffset.c @@ -0,0 +1,33 @@ +/* Return bit offset attribute of DIE. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_bitoffset (die) + Dwarf_Die *die; +{ + Dwarf_Attribute attr_mem; + Dwarf_Word value; + + return INTUSE(dwarf_formudata) (INTUSE(dwarf_attr) (die, DW_AT_bit_offset, + &attr_mem), + &value) == 0 ? (int) value : -1; +} diff --git a/libdw/dwarf_bitsize.c b/libdw/dwarf_bitsize.c new file mode 100644 index 0000000..c67b4cc --- /dev/null +++ b/libdw/dwarf_bitsize.c @@ -0,0 +1,33 @@ +/* Return bit size attribute of DIE. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_bitsize (die) + Dwarf_Die *die; +{ + Dwarf_Attribute attr_mem; + Dwarf_Word value; + + return INTUSE(dwarf_formudata) (INTUSE(dwarf_attr) (die, DW_AT_bit_size, + &attr_mem), + &value) == 0 ? (int) value : -1; +} diff --git a/libdw/dwarf_bytesize.c b/libdw/dwarf_bytesize.c new file mode 100644 index 0000000..3e0b05a --- /dev/null +++ b/libdw/dwarf_bytesize.c @@ -0,0 +1,33 @@ +/* Return byte size attribute of DIE. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_bytesize (die) + Dwarf_Die *die; +{ + Dwarf_Attribute attr_mem; + Dwarf_Word value; + + return INTUSE(dwarf_formudata) (INTUSE(dwarf_attr) (die, DW_AT_byte_size, + &attr_mem), + &value) == 0 ? (int) value : -1; +} diff --git a/libdw/dwarf_child.c b/libdw/dwarf_child.c new file mode 100644 index 0000000..8dbe917 --- /dev/null +++ b/libdw/dwarf_child.c @@ -0,0 +1,159 @@ +/* Return vhild of current DIE. + Copyright (C) 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" +#include + +/* Some arbitrary value not conflicting with any existing code. */ +#define INVALID 0xffffe444 + + +unsigned char * +internal_function_def +__libdw_find_attr (Dwarf_Die *die, unsigned int search_name, + unsigned int *codep, unsigned int *formp) +{ + Dwarf *dbg = die->cu->dbg; + const unsigned char *readp = (unsigned char *) die->addr; + + /* First we have to get the abbreviation code so that we can decode + the data in the DIE. */ + unsigned int abbrev_code; + get_uleb128 (abbrev_code, readp); + + /* Find the abbreviation entry. */ + Dwarf_Abbrev *abbrevp = die->abbrev; + if (abbrevp == NULL) + { + abbrevp = __libdw_findabbrev (die->cu, abbrev_code); + die->abbrev = abbrevp ?: (Dwarf_Abbrev *) -1l; + } + if (unlikely (die->abbrev == (Dwarf_Abbrev *) -1l)) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return NULL; + } + + /* Search the name attribute. */ + unsigned char *const endp + = ((unsigned char *) dbg->sectiondata[IDX_debug_abbrev]->d_buf + + dbg->sectiondata[IDX_debug_abbrev]->d_size); + + const unsigned char *attrp = die->abbrev->attrp; + while (1) + { + /* Are we still in bounds? This test needs to be refined. */ + if (unlikely (attrp + 1 >= endp)) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return NULL; + } + + /* Get attribute name and form. + + XXX We don't check whether this reads beyond the end of the + section. */ + unsigned int attr_name; + get_uleb128 (attr_name, attrp); + unsigned int attr_form; + get_uleb128 (attr_form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr_name == 0 && attr_form == 0) + break; + + /* Is this the name attribute? */ + if (attr_name == search_name && search_name != INVALID) + { + if (codep != NULL) + *codep = attr_name; + if (formp != NULL) + *formp = attr_form; + + return (unsigned char *) readp; + } + + /* Skip over the rest of this attribute (if there is any). */ + if (attr_form != 0) + { + size_t len = __libdw_form_val_len (dbg, die->cu, attr_form, readp); + + if (unlikely (len == (size_t) -1l)) + { + readp = NULL; + break; + } + + // XXX We need better boundary checks. + readp += len; + } + } + + // XXX Do we need other values? + if (codep != NULL) + *codep = INVALID; + if (formp != NULL) + *formp = INVALID; + + return (unsigned char *) readp; +} + + +int +dwarf_child (die, result) + Dwarf_Die *die; + Dwarf_Die *result; +{ + /* Ignore previous errors. */ + if (die == NULL) + return -1; + + /* Skip past the last attribute. */ + void *addr = NULL; + + /* If we already know there are no children do not search. */ + if (die->abbrev != (Dwarf_Abbrev *) -1 + && (die->abbrev == NULL || die->abbrev->has_children)) + addr = __libdw_find_attr (die, INVALID, NULL, NULL); + if (die->abbrev == (Dwarf_Abbrev *) -1l) + return -1; + + /* Make sure the DIE really has children. */ + if (! die->abbrev->has_children) + /* There cannot be any children. */ + return 1; + + if (addr == NULL) + return -1; + + /* RESULT can be the same as DIE. So preserve what we need. */ + struct Dwarf_CU *cu = die->cu; + + /* Clear the entire DIE structure. This signals we have not yet + determined any of the information. */ + memset (result, '\0', sizeof (Dwarf_Die)); + + /* We have the address. */ + result->addr = addr; + + /* Same CU as the parent. */ + result->cu = cu; + + return 0; +} +INTDEF(dwarf_child) diff --git a/libdw/dwarf_cuoffset.c b/libdw/dwarf_cuoffset.c new file mode 100644 index 0000000..f3adfa8 --- /dev/null +++ b/libdw/dwarf_cuoffset.c @@ -0,0 +1,32 @@ +/* Return offset of DIE in CU. + Copyright (C) 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +Dwarf_Off +dwarf_cuoffset (die) + Dwarf_Die *die; +{ + return (die == NULL + ? (Dwarf_Off) -1l + : (die->addr + - die->cu->dbg->sectiondata[IDX_debug_info]->d_buf + - die->cu->start)); +} diff --git a/libdw/dwarf_diename.c b/libdw/dwarf_diename.c new file mode 100644 index 0000000..41d763c --- /dev/null +++ b/libdw/dwarf_diename.c @@ -0,0 +1,31 @@ +/* Return string in name attribute of DIE. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +const char * +dwarf_diename (die) + Dwarf_Die *die; +{ + Dwarf_Attribute attr_mem; + + return INTUSE(dwarf_formstring) (INTUSE(dwarf_attr) (die, DW_AT_name, + &attr_mem)); +} diff --git a/libdw/dwarf_dieoffset.c b/libdw/dwarf_dieoffset.c new file mode 100644 index 0000000..e678a40 --- /dev/null +++ b/libdw/dwarf_dieoffset.c @@ -0,0 +1,32 @@ +/* Return offset of DIE. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +Dwarf_Off +dwarf_dieoffset (die) + Dwarf_Die *die; +{ + return (die == NULL + ? ~0ul + : (Dwarf_Off) (die->addr + - die->cu->dbg->sectiondata[IDX_debug_info]->d_buf)); +} +INTDEF(dwarf_dieoffset) diff --git a/libdw/dwarf_end.c b/libdw/dwarf_end.c new file mode 100644 index 0000000..935bd3d --- /dev/null +++ b/libdw/dwarf_end.c @@ -0,0 +1,75 @@ +/* Release debugging handling context. + Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libdwP.h" + + + +static void +noop_free (void *arg __attribute__ ((unused))) +{ +} + + +static void +cu_free (void *arg) +{ + struct Dwarf_CU *p = (struct Dwarf_CU *) arg; + + Dwarf_Abbrev_Hash_free (&p->abbrev_hash); + + tdestroy (p->locs, noop_free); +} + + +int +dwarf_end (dwarf) + Dwarf *dwarf; +{ + if (dwarf != NULL) + { + /* The search tree for the CUs. NB: the CU data itself is + allocated separately, but the abbreviation hash tables need + to be handled. */ + tdestroy (dwarf->cu_tree, cu_free); + + struct libdw_memblock *memp = dwarf->mem_tail; + /* The first block is allocated together with the Dwarf object. */ + while (memp->prev != NULL) + { + struct libdw_memblock *prevp = memp->prev; + free (memp); + memp = prevp; + } + + /* Free the pubnames helper structure. */ + free (dwarf->pubnames_sets); + + /* Free the ELF descriptor if necessary. */ + if (dwarf->free_elf) + elf_end (dwarf->elf); + + /* Free the context descriptor. */ + free (dwarf); + } + + return 0; +} diff --git a/libdw/dwarf_error.c b/libdw/dwarf_error.c new file mode 100644 index 0000000..85d928c --- /dev/null +++ b/libdw/dwarf_error.c @@ -0,0 +1,180 @@ +/* Retrieve ELF descriptor used for DWARF access. + Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libdwP.h" + + +#ifdef USE_TLS +/* The error number. */ +static __thread int global_error; +#else +/* This is the key for the thread specific memory. */ +static tls_key_t key; + +/* The error number. Used in non-threaded programs. */ +static int global_error; +static bool threaded; +/* We need to initialize the thread-specific data. */ +once_define (static, once); + +/* The initialization and destruction functions. */ +static void init (void); +static void free_key_mem (void *mem); +#endif /* TLS */ + + +int +dwarf_errno (void) +{ + int result; + +#ifndef USE_TLS + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if (threaded) + { + /* We do not allocate memory for the data. It is only a word. + We can store it in place of the pointer. */ + result = (intptr_t) getspecific (key); + + setspecific (key, (void *) (intptr_t) DWARF_E_NOERROR); + return result; + } +#endif /* TLS */ + + result = global_error; + global_error = DWARF_E_NOERROR; + return result; +} +INTDEF(dwarf_errno) + + +/* XXX For now we use string pointers. Once the table stablelizes + make it more DSO-friendly. */ +static const char *errmsgs[] = + { + [DWARF_E_NOERROR] = N_("no error"), + [DWARF_E_UNKNOWN_ERROR] = N_("unknown error"), + [DWARF_E_INVALID_ACCESS] = N_("invalid access"), + [DWARF_E_NO_REGFILE] = N_("no regular file"), + [DWARF_E_IO_ERROR] = N_("I/O error"), + [DWARF_E_INVALID_ELF] = N_("invalid ELF file"), + [DWARF_E_NO_DWARF] = N_("no DWARF information"), + [DWARF_E_NOELF] = N_("no ELF file"), + [DWARF_E_GETEHDR_ERROR] = N_("cannot get ELF header"), + [DWARF_E_NOMEM] = N_("out of memory"), + [DWARF_E_UNIMPL] = N_("not implemented"), + [DWARF_E_INVALID_CMD] = N_("invalid command"), + [DWARF_E_INVALID_VERSION] = N_("invalid version"), + [DWARF_E_INVALID_FILE] = N_("invalid file"), + [DWARF_E_NO_ENTRY] = N_("no entries found"), + [DWARF_E_INVALID_DWARF] = N_("invalid DWARF"), + [DWARF_E_NO_STRING] = N_("no string data"), + [DWARF_E_NO_ADDR] = N_("no address value"), + [DWARF_E_NO_CONSTANT] = N_("no constant value"), + [DWARF_E_NO_REFERENCE] = N_("no reference value"), + [DWARF_E_INVALID_REFERENCE] = N_("invalid reference value"), + [DWARF_E_NO_DEBUG_LINE] = N_(".debug_line section missing"), + [DWARF_E_INVALID_DEBUG_LINE] = N_("invalid .debug_line section"), + [DWARF_E_TOO_BIG] = N_("debug information too big"), + [DWARF_E_VERSION] = N_("invalid DWARF version"), + [DWARF_E_INVALID_DIR_IDX] = N_("invalid directory index"), + [DWARF_E_ADDR_OUTOFRANGE] = N_("address out of range"), + [DWARF_E_NO_LOCLIST] = N_("no location list value"), + [DWARF_E_NO_BLOCK] = N_("no block data"), + [DWARF_E_INVALID_LINE_IDX] = N_("invalid line index"), + [DWARF_E_INVALID_ARANGE_IDX] = N_("invalid address range index"), + [DWARF_E_NO_MATCH] = N_("no matching address range"), + [DWARF_E_NO_FLAG] = N_("no flag value"), + [DWARF_E_INVALID_OFFSET] = N_("invalid offset"), + [DWARF_E_NO_DEBUG_RANGES] = N_(".debug_ranges section missing"), + }; +#define nerrmsgs (sizeof (errmsgs) / sizeof (errmsgs[0])) + + +void +__libdw_seterrno (value) + int value; +{ +#ifndef USE_TLS + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if (threaded) + /* We do not allocate memory for the data. It is only a word. + We can store it in place of the pointer. */ + setspecific (key, (void *) (intptr_t) value); +#endif /* TLS */ + + global_error = (value >= 0 && value < (int) nerrmsgs + ? value : DWARF_E_UNKNOWN_ERROR); +} + + +const char * +dwarf_errmsg (error) + int error; +{ + int last_error; + +#ifndef USE_TLS + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if ((error == 0 || error == -1) && threaded) + /* We do not allocate memory for the data. It is only a word. + We can store it in place of the pointer. */ + last_error = (intptr_t) getspecific (key); + else +#endif /* TLS */ + last_error = global_error; + + if (error == 0) + return last_error != 0 ? _(errmsgs[last_error]) : NULL; + else if (error < -1 || error >= (int) nerrmsgs) + return _(errmsgs[DWARF_E_UNKNOWN_ERROR]); + + return _(errmsgs[error == -1 ? last_error : error]); +} + + +#ifndef USE_TLS +/* Free the thread specific data, this is done if a thread terminates. */ +static void +free_key_mem (void *mem __attribute__ ((unused))) +{ + setspecific (key, NULL); +} + + +/* Initialize the key for the global variable. */ +static void +init (void) +{ + // XXX Screw you, gcc4, the unused function attribute does not work. + __asm ("" :: "r" (free_key_mem)); + + if (key_create (&key, free_key_mem) == 0) + /* Creating the key succeeded. */ + threaded = true; +} +#endif /* TLS */ diff --git a/libdw/dwarf_filesrc.c b/libdw/dwarf_filesrc.c new file mode 100644 index 0000000..770c004 --- /dev/null +++ b/libdw/dwarf_filesrc.c @@ -0,0 +1,36 @@ +/* Find source file information. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +const char * +dwarf_filesrc (Dwarf_Files *file, size_t idx, Dwarf_Word *mtime, + Dwarf_Word *length) +{ + if (file == NULL || idx >= file->nfiles) + return NULL; + + if (mtime != NULL) + *mtime = file->info[idx].mtime; + + if (length != NULL) + *length = file->info[idx].length; + + return file->info[idx].name; +} diff --git a/libdw/dwarf_formaddr.c b/libdw/dwarf_formaddr.c new file mode 100644 index 0000000..168eb89 --- /dev/null +++ b/libdw/dwarf_formaddr.c @@ -0,0 +1,44 @@ +/* Return address represented by attribute. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_formaddr (attr, return_addr) + Dwarf_Attribute *attr; + Dwarf_Addr *return_addr; +{ + if (attr == NULL) + return -1; + + if (unlikely (attr->form != DW_FORM_addr)) + { + __libdw_seterrno (DWARF_E_NO_ADDR); + return -1; + } + + if (attr->cu->address_size == 8) + *return_addr = read_8ubyte_unaligned (attr->cu->dbg, attr->valp); + else + *return_addr = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + + return 0; +} +INTDEF(dwarf_formaddr) diff --git a/libdw/dwarf_formblock.c b/libdw/dwarf_formblock.c new file mode 100644 index 0000000..30c2ac9 --- /dev/null +++ b/libdw/dwarf_formblock.c @@ -0,0 +1,72 @@ +/* Return block represented by attribute. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_formblock (attr, return_block) + Dwarf_Attribute *attr; + Dwarf_Block *return_block; +{ + if (attr == NULL) + return -1; + + const unsigned char *datap; + + switch (attr->form) + { + case DW_FORM_block1: + return_block->length = *(uint8_t *) attr->valp; + return_block->data = attr->valp + 1; + break; + + case DW_FORM_block2: + return_block->length = read_2ubyte_unaligned (attr->cu->dbg, attr->valp); + return_block->data = attr->valp + 2; + break; + + case DW_FORM_block4: + return_block->length = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + return_block->data = attr->valp + 4; + break; + + case DW_FORM_block: + datap = attr->valp; + get_uleb128 (return_block->length, datap); + return_block->data = (unsigned char *) datap; + break; + + default: + __libdw_seterrno (DWARF_E_NO_BLOCK); + return -1; + } + + if (return_block->data + return_block->length + > ((unsigned char *) attr->cu->dbg->sectiondata[IDX_debug_info]->d_buf + + attr->cu->dbg->sectiondata[IDX_debug_info]->d_size)) + { + /* Block does not fit. */ + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1; + } + + return 0; +} +INTDEF(dwarf_formblock) diff --git a/libdw/dwarf_formflag.c b/libdw/dwarf_formflag.c new file mode 100644 index 0000000..ac34401 --- /dev/null +++ b/libdw/dwarf_formflag.c @@ -0,0 +1,40 @@ +/* Return flag represented by attribute. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_formflag (attr, return_bool) + Dwarf_Attribute *attr; + bool *return_bool; +{ + if (attr == NULL) + return -1; + + if (unlikely (attr->form != DW_FORM_flag)) + { + __libdw_seterrno (DWARF_E_NO_FLAG); + return -1; + } + + *return_bool = *attr->valp != 0; + + return 0; +} diff --git a/libdw/dwarf_formref.c b/libdw/dwarf_formref.c new file mode 100644 index 0000000..ea56990 --- /dev/null +++ b/libdw/dwarf_formref.c @@ -0,0 +1,67 @@ +/* Return reference offset represented by attribute. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_formref (attr, return_offset) + Dwarf_Attribute *attr; + Dwarf_Off *return_offset; +{ + if (attr == NULL) + return -1; + + const unsigned char *datap; + + switch (attr->form) + { + case DW_FORM_ref1: + *return_offset = *attr->valp; + break; + + case DW_FORM_ref2: + *return_offset = read_2ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_ref4: + *return_offset = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_ref8: + *return_offset = read_8ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_ref_udata: + datap = attr->valp; + get_uleb128 (*return_offset, datap); + break; + + case DW_FORM_ref_addr: + __libdw_seterrno (DWARF_E_INVALID_REFERENCE); + return -1; + + default: + __libdw_seterrno (DWARF_E_NO_REFERENCE); + return -1; + } + + return 0; +} +INTDEF(dwarf_formref) diff --git a/libdw/dwarf_formref_die.c b/libdw/dwarf_formref_die.c new file mode 100644 index 0000000..7f5b4f9 --- /dev/null +++ b/libdw/dwarf_formref_die.c @@ -0,0 +1,28 @@ +/* Look up the DIE in a reference-form attribute. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + +Dwarf_Die * +dwarf_formref_die (Dwarf_Attribute *attr, Dwarf_Die *die_mem) +{ + Dwarf_Off offset; + return (unlikely (INTUSE(dwarf_formref) (attr, &offset) != 0) ? NULL + : INTUSE(dwarf_offdie) (attr->cu->dbg, attr->cu->start + offset, + die_mem)); +} +INTDEF (dwarf_formref_die) diff --git a/libdw/dwarf_formsdata.c b/libdw/dwarf_formsdata.c new file mode 100644 index 0000000..a5b6b88 --- /dev/null +++ b/libdw/dwarf_formsdata.c @@ -0,0 +1,68 @@ +/* Return signed constant represented by attribute. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_formsdata (attr, return_sval) + Dwarf_Attribute *attr; + Dwarf_Sword *return_sval; +{ + if (attr == NULL) + return -1; + + const unsigned char *datap; + + switch (attr->form) + { + case DW_FORM_data1: + *return_sval = *attr->valp; + break; + + case DW_FORM_data2: + *return_sval = read_2ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_data4: + *return_sval = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_data8: + *return_sval = read_8ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_sdata: + datap = attr->valp; + get_sleb128 (*return_sval, datap); + break; + + case DW_FORM_udata: + datap = attr->valp; + get_uleb128 (*return_sval, datap); + break; + + default: + __libdw_seterrno (DWARF_E_NO_CONSTANT); + return -1; + } + + return 0; +} +INTDEF(dwarf_formsdata) diff --git a/libdw/dwarf_formstring.c b/libdw/dwarf_formstring.c new file mode 100644 index 0000000..eac1cc0 --- /dev/null +++ b/libdw/dwarf_formstring.c @@ -0,0 +1,58 @@ +/* Return string associated with given attribute. + Copyright (C) 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +const char * +dwarf_formstring (attrp) + Dwarf_Attribute *attrp; +{ + /* Ignore earlier errors. */ + if (attrp == NULL) + return NULL; + + /* We found it. Now determine where the string is stored. */ + if (attrp->form == DW_FORM_string) + /* A simple inlined string. */ + return (const char *) attrp->valp; + + Dwarf *dbg = attrp->cu->dbg; + + if (unlikely (attrp->form != DW_FORM_strp) + || dbg->sectiondata[IDX_debug_str] == NULL) + { + invalid_error: + __libdw_seterrno (DWARF_E_NO_STRING); + return NULL; + } + + uint64_t off; + // XXX We need better boundary checks. + if (attrp->cu->offset_size == 8) + off = read_8ubyte_unaligned (dbg, attrp->valp); + else + off = read_4ubyte_unaligned (dbg, attrp->valp); + + if (off >= dbg->sectiondata[IDX_debug_str]->d_size) + goto invalid_error; + + return (const char *) dbg->sectiondata[IDX_debug_str]->d_buf + off; +} +INTDEF(dwarf_formstring) diff --git a/libdw/dwarf_formudata.c b/libdw/dwarf_formudata.c new file mode 100644 index 0000000..6798562 --- /dev/null +++ b/libdw/dwarf_formudata.c @@ -0,0 +1,68 @@ +/* Return unsigned constant represented by attribute. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_formudata (attr, return_uval) + Dwarf_Attribute *attr; + Dwarf_Word *return_uval; +{ + if (attr == NULL) + return -1; + + const unsigned char *datap; + + switch (attr->form) + { + case DW_FORM_data1: + *return_uval = *attr->valp; + break; + + case DW_FORM_data2: + *return_uval = read_2ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_data4: + *return_uval = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_data8: + *return_uval = read_8ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_sdata: + datap = attr->valp; + get_sleb128 (*return_uval, datap); + break; + + case DW_FORM_udata: + datap = attr->valp; + get_uleb128 (*return_uval, datap); + break; + + default: + __libdw_seterrno (DWARF_E_NO_CONSTANT); + return -1; + } + + return 0; +} +INTDEF(dwarf_formudata) diff --git a/libdw/dwarf_func_col.c b/libdw/dwarf_func_col.c new file mode 100644 index 0000000..feda143 --- /dev/null +++ b/libdw/dwarf_func_col.c @@ -0,0 +1,27 @@ +/* Get line number of beginning of given function. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_func_col (Dwarf_Func *func, int *colp) +{ + return __libdw_func_intval (func, colp, DW_AT_decl_column); +} diff --git a/libdw/dwarf_func_entrypc.c b/libdw/dwarf_func_entrypc.c new file mode 100644 index 0000000..6b5103e --- /dev/null +++ b/libdw/dwarf_func_entrypc.c @@ -0,0 +1,33 @@ +/* Get entry address of function. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_func_entrypc (Dwarf_Func *func, Dwarf_Addr *return_addr) +{ + Dwarf_Attribute attr_mem; + Dwarf_Attribute *attr = INTUSE(dwarf_attr) (func->die, DW_AT_entry_pc, + &attr_mem); + if (attr != NULL) + return INTUSE(dwarf_formaddr) (attr, return_addr); + + return INTUSE(dwarf_lowpc) (func->die, return_addr); +} diff --git a/libdw/dwarf_func_file.c b/libdw/dwarf_func_file.c new file mode 100644 index 0000000..d5302df --- /dev/null +++ b/libdw/dwarf_func_file.c @@ -0,0 +1,72 @@ +/* Return file name containing definition of the given function. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libdwP.h" + + +const char * +dwarf_func_file (Dwarf_Func *func) +{ + Dwarf_Attribute attr_mem; + Dwarf_Sword idx = 0; + Dwarf_Die *die = func->die; + + if (INTUSE(dwarf_formsdata) (INTUSE(dwarf_attr) (die, DW_AT_decl_file, + &attr_mem), &idx) != 0) + return NULL; + + /* Zero means no source file information available. */ + if (idx == 0) + { + __libdw_seterrno (DWARF_E_NO_ENTRY); + return NULL; + } + + /* Get the array of source files for the CU. */ + struct Dwarf_CU *cu = die->cu; + if (cu->lines == NULL) + { + Dwarf_Lines *lines; + size_t nlines; + + /* Let the more generic function do the work. It'll create more + data but that will be needed in an real program anyway. */ + (void) INTUSE(dwarf_getsrclines) (func->cudie, &lines, &nlines); + assert (cu->lines != NULL); + } + + if (cu->lines == (void *) -1l) + { + /* If the file index is not zero, there must be file information + available. */ + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return NULL; + } + + assert (cu->files != NULL && cu->files != (void *) -1l); + + if (idx >= cu->files->nfiles) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return NULL; + } + + return cu->files->info[idx].name; +} diff --git a/libdw/dwarf_func_highpc.c b/libdw/dwarf_func_highpc.c new file mode 100644 index 0000000..c5d2eec --- /dev/null +++ b/libdw/dwarf_func_highpc.c @@ -0,0 +1,26 @@ +/* Get end address of function. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_func_highpc (Dwarf_Func *func, Dwarf_Addr *return_addr) +{ + return INTUSE(dwarf_highpc) (func->die, return_addr); +} diff --git a/libdw/dwarf_func_line.c b/libdw/dwarf_func_line.c new file mode 100644 index 0000000..6259b9f --- /dev/null +++ b/libdw/dwarf_func_line.c @@ -0,0 +1,47 @@ +/* Get line number of beginning of given function. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include "libdwP.h" + + +int +dwarf_func_line (Dwarf_Func *func, int *linep) +{ + return __libdw_func_intval (func, linep, DW_AT_decl_line); +} + + +int internal_function +__libdw_func_intval (Dwarf_Func *func, int *linep, int attval) +{ + Dwarf_Attribute attr_mem; + Dwarf_Sword line; + + int res = INTUSE(dwarf_formsdata) (INTUSE(dwarf_attr) (func->die, attval, + &attr_mem), &line); + if (res == 0) + { + assert (line >= 0 && line <= INT_MAX); + *linep = line; + } + + return res; +} diff --git a/libdw/dwarf_func_lowpc.c b/libdw/dwarf_func_lowpc.c new file mode 100644 index 0000000..d364e6c --- /dev/null +++ b/libdw/dwarf_func_lowpc.c @@ -0,0 +1,26 @@ +/* Get start address of function. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_func_lowpc (Dwarf_Func *func, Dwarf_Addr *return_addr) +{ + return INTUSE(dwarf_lowpc) (func->die, return_addr); +} diff --git a/libdw/dwarf_func_name.c b/libdw/dwarf_func_name.c new file mode 100644 index 0000000..4151c35 --- /dev/null +++ b/libdw/dwarf_func_name.c @@ -0,0 +1,30 @@ +/* Get function name. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +const char * +dwarf_func_name (Dwarf_Func *func) +{ + Dwarf_Attribute attr_mem; + + return INTUSE(dwarf_formstring) (INTUSE(dwarf_attr) (func->die, DW_AT_name, + &attr_mem)); +} diff --git a/libdw/dwarf_getabbrev.c b/libdw/dwarf_getabbrev.c new file mode 100644 index 0000000..a6968a8 --- /dev/null +++ b/libdw/dwarf_getabbrev.c @@ -0,0 +1,127 @@ +/* Get abbreviation at given offset. + Copyright (C) 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libdwP.h" + + +Dwarf_Abbrev * +internal_function_def +__libdw_getabbrev (dbg, cu, offset, lengthp, result) + Dwarf *dbg; + struct Dwarf_CU *cu; + Dwarf_Off offset; + size_t *lengthp; + Dwarf_Abbrev *result; +{ + /* Don't fail if there is not .debug_abbrev section. */ + if (dbg->sectiondata[IDX_debug_abbrev] == NULL) + return NULL; + + const unsigned char *abbrevp + = (unsigned char *) dbg->sectiondata[IDX_debug_abbrev]->d_buf + offset; + if (*abbrevp == '\0') + /* We are past the last entry. */ + return DWARF_END_ABBREV; + + /* 7.5.3 Abbreviations Tables + + [...] Each declaration begins with an unsigned LEB128 number + representing the abbreviation code itself. [...] The + abbreviation code is followed by another unsigned LEB128 + number that encodes the entry's tag. [...] + + [...] Following the tag encoding is a 1-byte value that + determines whether a debugging information entry using this + abbreviation has child entries or not. [...] + + [...] Finally, the child encoding is followed by a series of + attribute specifications. Each attribute specification + consists of two parts. The first part is an unsigned LEB128 + number representing the attribute's name. The second part is + an unsigned LEB128 number representing the attribute's form. */ + const unsigned char *start_abbrevp = abbrevp; + unsigned int code; + get_uleb128 (code, abbrevp); + + /* Check whether this code is already in the hash table. */ + bool foundit = false; + Dwarf_Abbrev *abb = NULL; + if (cu == NULL + || (abb = Dwarf_Abbrev_Hash_find (&cu->abbrev_hash, code, NULL)) == NULL) + { + if (result == NULL) + abb = libdw_typed_alloc (dbg, Dwarf_Abbrev); + else + abb = result; + } + else + { + foundit = true; + + assert (abb->offset == offset); + + /* If the caller doesn't need the length we are done. */ + if (lengthp == NULL) + goto out; + } + + /* If there is already a value in the hash table we are going to + overwrite its content. This must not be a problem, since the + content better be the same. */ + abb->code = code; + get_uleb128 (abb->tag, abbrevp); + abb->has_children = *abbrevp++ == DW_CHILDREN_yes; + abb->attrp = (unsigned char *) abbrevp; + abb->offset = offset; + + /* Skip over all the attributes and count them while doing so. */ + abb->attrcnt = 0; + unsigned int attrname; + unsigned int attrform; + do + { + get_uleb128 (attrname, abbrevp); + get_uleb128 (attrform, abbrevp); + } + while (attrname != 0 && attrform != 0 && ++abb->attrcnt); + + /* Return the length to the caller if she asked for it. */ + if (lengthp != NULL) + *lengthp = abbrevp - start_abbrevp; + + /* Add the entry to the hash table. */ + if (cu != NULL && ! foundit) + (void) Dwarf_Abbrev_Hash_insert (&cu->abbrev_hash, abb->code, abb); + + out: + return abb; +} + + +Dwarf_Abbrev * +dwarf_getabbrev (die, offset, lengthp) + Dwarf_Die *die; + Dwarf_Off offset; + size_t *lengthp; +{ + return __libdw_getabbrev (die->cu->dbg, die->cu, + die->cu->orig_abbrev_offset + offset, lengthp, + NULL); +} diff --git a/libdw/dwarf_getabbrevattr.c b/libdw/dwarf_getabbrevattr.c new file mode 100644 index 0000000..8cdf6a3 --- /dev/null +++ b/libdw/dwarf_getabbrevattr.c @@ -0,0 +1,64 @@ +/* Get specific attribute of abbreviation. + Copyright (C) 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libdwP.h" + + +int +dwarf_getabbrevattr (abbrev, idx, namep, formp, offsetp) + Dwarf_Abbrev *abbrev; + size_t idx; + unsigned int *namep; + unsigned int *formp; + Dwarf_Off *offsetp; +{ + if (abbrev == NULL) + return -1; + + size_t cnt = 0; + const unsigned char *attrp = abbrev->attrp; + const unsigned char *start_attrp; + unsigned int name; + unsigned int form; + + do + { + start_attrp = attrp; + + /* Attribute code and form are encoded as ULEB128 values. */ + get_uleb128 (name, attrp); + get_uleb128 (form, attrp); + + /* If both values are zero the index is out of range. */ + if (name == 0 && form == 0) + return -1; + } + while (cnt++ < idx); + + /* Store the result if requested. */ + if (namep != NULL) + *namep = name; + if (formp != NULL) + *formp = form; + if (offsetp != NULL) + *offsetp = (start_attrp - abbrev->attrp) + abbrev->offset; + + return 0; +} diff --git a/libdw/dwarf_getabbrevcode.c b/libdw/dwarf_getabbrevcode.c new file mode 100644 index 0000000..ef3dac4 --- /dev/null +++ b/libdw/dwarf_getabbrevcode.c @@ -0,0 +1,29 @@ +/* Get abbreviation code. + Copyright (C) 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libdwP.h" + + +unsigned int +dwarf_getabbrevcode (abbrev) + Dwarf_Abbrev *abbrev; +{ + return abbrev == NULL ? 0 : abbrev->code; +} diff --git a/libdw/dwarf_getabbrevtag.c b/libdw/dwarf_getabbrevtag.c new file mode 100644 index 0000000..4707fdd --- /dev/null +++ b/libdw/dwarf_getabbrevtag.c @@ -0,0 +1,29 @@ +/* Get abbreviation tag. + Copyright (C) 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libdwP.h" + + +unsigned int +dwarf_getabbrevtag (abbrev) + Dwarf_Abbrev *abbrev; +{ + return abbrev == NULL ? 0 : abbrev->tag; +} diff --git a/libdw/dwarf_getarange_addr.c b/libdw/dwarf_getarange_addr.c new file mode 100644 index 0000000..2d0408e --- /dev/null +++ b/libdw/dwarf_getarange_addr.c @@ -0,0 +1,47 @@ +/* Get address range which includes given address. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +Dwarf_Arange * +dwarf_getarange_addr (aranges, addr) + Dwarf_Aranges *aranges; + Dwarf_Addr addr; +{ + if (aranges == NULL) + return NULL; + + /* The ranges are sorted by address, so we can use binary search. */ + size_t l = 0, u = aranges->naranges; + while (l < u) + { + size_t idx = (l + u) / 2; + if (addr < aranges->info[idx].addr) + u = idx; + else if (addr > aranges->info[idx].addr + && addr - aranges->info[idx].addr >= aranges->info[idx].length) + l = idx + 1; + else + return &aranges->info[idx]; + } + + __libdw_seterrno (DWARF_E_NO_MATCH); + return NULL; +} +INTDEF(dwarf_getarange_addr) diff --git a/libdw/dwarf_getarangeinfo.c b/libdw/dwarf_getarangeinfo.c new file mode 100644 index 0000000..eb1f539 --- /dev/null +++ b/libdw/dwarf_getarangeinfo.c @@ -0,0 +1,38 @@ +/* Return list address ranges. + Copyright (C) 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_getarangeinfo (Dwarf_Arange *arange, Dwarf_Addr *addrp, + Dwarf_Word *lengthp, Dwarf_Off *offsetp) +{ + if (arange == NULL) + return -1; + + if (addrp != NULL) + *addrp = arange->addr; + if (lengthp != NULL) + *lengthp = arange->length; + if (offsetp != NULL) + *offsetp = arange->offset; + + return 0; +} +INTDEF(dwarf_getarangeinfo) diff --git a/libdw/dwarf_getaranges.c b/libdw/dwarf_getaranges.c new file mode 100644 index 0000000..f7cf050 --- /dev/null +++ b/libdw/dwarf_getaranges.c @@ -0,0 +1,212 @@ +/* Return list address ranges. + Copyright (C) 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libdwP.h" + + +struct arangelist +{ + Dwarf_Arange arange; + struct arangelist *next; +}; + +/* Compare by Dwarf_Arange.addr, given pointers into an array of pointeers. */ +static int +compare_aranges (const void *a, const void *b) +{ + Dwarf_Arange *const *p1 = a, *const *p2 = b; + Dwarf_Arange *l1 = *p1, *l2 = *p2; + return l1->addr - l2->addr; +} + +int +dwarf_getaranges (dbg, aranges, naranges) + Dwarf *dbg; + Dwarf_Aranges **aranges; + size_t *naranges; +{ + if (dbg == NULL) + return -1; + + if (dbg->aranges != NULL) + { + *aranges = dbg->aranges; + if (naranges != NULL) + *naranges = dbg->aranges->naranges; + return 0; + } + + if (dbg->sectiondata[IDX_debug_aranges]->d_buf == NULL) + return -1; + + struct arangelist *arangelist = NULL; + unsigned int narangelist = 0; + + const char *readp + = (const char *) dbg->sectiondata[IDX_debug_aranges]->d_buf; + const char *readendp = readp + dbg->sectiondata[IDX_debug_aranges]->d_size; + + while (readp < readendp) + { + const char *hdrstart = readp; + + /* Each entry starts with a header: + + 1. A 4-byte or 12-byte length containing the length of the + set of entries for this compilation unit, not including the + length field itself. [...] + + 2. A 2-byte version identifier containing the value 2 for + DWARF Version 2.1. + + 3. A 4-byte or 8-byte offset into the .debug_info section. [...] + + 4. A 1-byte unsigned integer containing the size in bytes of + an address (or the offset portion of an address for segmented + addressing) on the target system. + + 5. A 1-byte unsigned integer containing the size in bytes of + a segment descriptor on the target system. */ + Dwarf_Word length = read_4ubyte_unaligned_inc (dbg, readp); + unsigned int length_bytes = 4; + if (length == 0xffffffff) + { + length = read_8ubyte_unaligned_inc (dbg, readp); + length_bytes = 8; + } + + unsigned int version = read_2ubyte_unaligned_inc (dbg, readp); + if (version != 2) + { + invalid: + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1; + } + + Dwarf_Word offset; + if (length_bytes == 4) + offset = read_4ubyte_unaligned_inc (dbg, readp); + else + offset = read_8ubyte_unaligned_inc (dbg, readp); + + unsigned int address_size = *readp++; + if (address_size != 4 && address_size != 8) + goto invalid; + + /* Ignore the segment size value. */ + // XXX Really? + (void) *readp++; + + /* Round the address to the next multiple of 2*address_size. */ + readp += ((2 * address_size - ((readp - hdrstart) % (2 * address_size))) + % (2 * address_size)); + + while (1) + { + Dwarf_Word range_address; + Dwarf_Word range_length; + + if (address_size == 4) + { + range_address = read_4ubyte_unaligned_inc (dbg, readp); + range_length = read_4ubyte_unaligned_inc (dbg, readp); + } + else + { + range_address = read_8ubyte_unaligned_inc (dbg, readp); + range_length = read_8ubyte_unaligned_inc (dbg, readp); + } + + /* Two zero values mark the end. */ + if (range_address == 0 && range_length == 0) + break; + + struct arangelist *new_arange = + (struct arangelist *) alloca (sizeof (struct arangelist)); + + new_arange->arange.addr = range_address; + new_arange->arange.length = range_length; + + /* We store the actual CU DIE offset, not the CU header offset. */ + const char *cu_header = (dbg->sectiondata[IDX_debug_info]->d_buf + + offset); + unsigned int offset_size; + if (read_4ubyte_unaligned_noncvt (cu_header) == 0xffffffff) + offset_size = 8; + else + offset_size = 4; + new_arange->arange.offset = offset + 3 * offset_size - 4 + 3; + + new_arange->next = arangelist; + arangelist = new_arange; + ++narangelist; + } + } + + if (narangelist == 0) + { + if (naranges != NULL) + *naranges = 0; + *aranges = NULL; + return 0; + } + + /* Allocate the array for the result. */ + void *buf = libdw_alloc (dbg, Dwarf_Aranges, + sizeof (Dwarf_Aranges) + + narangelist * sizeof (Dwarf_Arange), 1); + + /* First use the buffer for the pointers, and sort the entries. + We'll write the pointers in the end of the buffer, and then + copy into the buffer from the beginning so the overlap works. */ + assert (sizeof (Dwarf_Arange) >= sizeof (Dwarf_Arange *)); + Dwarf_Arange **sortaranges = (buf + sizeof (Dwarf_Aranges) + + ((sizeof (Dwarf_Arange) + - sizeof (Dwarf_Arange *)) * narangelist)); + + /* The list is in LIFO order and usually they come in clumps with + ascending addresses. So fill from the back to probably start with + runs already in order before we sort. */ + unsigned int i = narangelist; + while (i-- > 0) + { + sortaranges[i] = &arangelist->arange; + arangelist = arangelist->next; + } + assert (arangelist == NULL); + + /* Sort by ascending address. */ + qsort (sortaranges, narangelist, sizeof sortaranges[0], &compare_aranges); + + /* Now that they are sorted, put them in the final array. + The buffers overlap, so we've clobbered the early elements + of SORTARANGES by the time we're reading the later ones. */ + *aranges = buf; + (*aranges)->dbg = dbg; + (*aranges)->naranges = narangelist; + dbg->aranges = *aranges; + if (naranges != NULL) + *naranges = narangelist; + for (i = 0; i < narangelist; ++i) + (*aranges)->info[i] = *sortaranges[i]; + + return 0; +} +INTDEF(dwarf_getaranges) diff --git a/libdw/dwarf_getattrcnt.c b/libdw/dwarf_getattrcnt.c new file mode 100644 index 0000000..0758e03 --- /dev/null +++ b/libdw/dwarf_getattrcnt.c @@ -0,0 +1,33 @@ +/* Get number of attributes of abbreviation. + Copyright (C) 2003, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_getattrcnt (abbrev, attrcntp) + Dwarf_Abbrev *abbrev; + size_t *attrcntp; +{ + if (abbrev == NULL) + return -1; + + *attrcntp = abbrev->attrcnt; + + return 0; +} diff --git a/libdw/dwarf_getattrs.c b/libdw/dwarf_getattrs.c new file mode 100644 index 0000000..8e6326d --- /dev/null +++ b/libdw/dwarf_getattrs.c @@ -0,0 +1,94 @@ +/* Get attributes of the DIE. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +ptrdiff_t +dwarf_getattrs (Dwarf_Die *die, int (*callback) (Dwarf_Attribute *, void *), + void *arg, ptrdiff_t offset) +{ + if (die == NULL) + return -1l; + + const unsigned char *die_addr = die->addr; + + /* Get the abbreviation code. */ + unsigned int u128; + get_uleb128 (u128, die_addr); + + if (die->abbrev == NULL) + /* Find the abbreviation. */ + die->abbrev = __libdw_findabbrev (die->cu, u128); + + if (die->abbrev == (Dwarf_Abbrev *) -1l) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1l; + } + + /* This is where the attributes start. */ + const unsigned char *attrp = die->abbrev->attrp + offset; + + /* Go over the list of attributes. */ + Dwarf *dbg = die->cu->dbg; + while (1) + { + /* Are we still in bounds? */ + if (unlikely (attrp + >= ((unsigned char *) dbg->sectiondata[IDX_debug_abbrev]->d_buf + + dbg->sectiondata[IDX_debug_abbrev]->d_size))) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1; + } + + /* Get attribute name and form. */ + Dwarf_Attribute attr; + // XXX Fix bound checks + get_uleb128 (attr.code, attrp); + get_uleb128 (attr.form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr.code == 0 && attr.form == 0) + return 0; + + /* Fill in the rest. */ + attr.valp = (unsigned char *) die_addr; + attr.cu = die->cu; + + /* Now call the callback function. */ + if (callback (&attr, arg) != DWARF_CB_OK) + return attrp - die->abbrev->attrp; + + /* Skip over the rest of this attribute (if there is any). */ + if (attr.form != 0) + { + size_t len = __libdw_form_val_len (dbg, die->cu, attr.form, + die_addr); + + if (unlikely (len == (size_t) -1l)) + /* Something wrong with the file. */ + return -1l; + + // XXX We need better boundary checks. + die_addr += len; + } + } + /* NOTREACHED */ +} diff --git a/libdw/dwarf_getelf.c b/libdw/dwarf_getelf.c new file mode 100644 index 0000000..1e2a06a --- /dev/null +++ b/libdw/dwarf_getelf.c @@ -0,0 +1,33 @@ +/* Retrieve ELF descriptor used for DWARF access. + Copyright (C) 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include "libdwP.h" + + +Elf * +dwarf_get_elf (dwarf) + Dwarf *dwarf; +{ + if (dwarf == NULL) + /* Some error occurred before. */ + return NULL; + + return dwarf->elf; +} diff --git a/libdw/dwarf_getfuncs.c b/libdw/dwarf_getfuncs.c new file mode 100644 index 0000000..149f186 --- /dev/null +++ b/libdw/dwarf_getfuncs.c @@ -0,0 +1,63 @@ +/* Get function information. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +ptrdiff_t +dwarf_getfuncs (Dwarf_Die *cudie, int (*callback) (Dwarf_Func *, void *), + void *arg, ptrdiff_t offset) +{ + if (unlikely (cudie == NULL + || INTUSE(dwarf_tag) (cudie) != DW_TAG_compile_unit)) + return -1; + + Dwarf_Die die_mem; + Dwarf_Die *die; + + int res; + if (offset == 0) + res = INTUSE(dwarf_child) (cudie, &die_mem); + else + { + die = INTUSE(dwarf_offdie) (cudie->cu->dbg, offset, &die_mem); + res = INTUSE(dwarf_siblingof) (die, &die_mem); + } + die = res != 0 ? NULL : &die_mem; + + while (die != NULL) + { + if (INTUSE(dwarf_tag) (die) == DW_TAG_subprogram) + { + Dwarf_Func fct; + + fct.die = die; + fct.cudie = cudie; + + if (callback (&fct, arg) != DWARF_CB_OK) + return INTUSE(dwarf_dieoffset) (die); + } + + if (INTUSE(dwarf_siblingof) (die, &die_mem) != 0) + break; + } + + /* That's all. */ + return 0; +} diff --git a/libdw/dwarf_getloclist.c b/libdw/dwarf_getloclist.c new file mode 100644 index 0000000..ab7c386 --- /dev/null +++ b/libdw/dwarf_getloclist.c @@ -0,0 +1,454 @@ +/* Return location expression list. + Copyright (C) 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include + + +static bool +attr_ok (Dwarf_Attribute *attr) +{ + if (attr == NULL) + return false; + + /* Must be one of the attributes listed below. */ + switch (attr->code) + { + case DW_AT_location: + case DW_AT_data_member_location: + case DW_AT_vtable_elem_location: + case DW_AT_string_length: + case DW_AT_use_location: + case DW_AT_frame_base: + case DW_AT_return_addr: + case DW_AT_static_link: + break; + + default: + __libdw_seterrno (DWARF_E_NO_LOCLIST); + return false; + } + + return true; +} + + +struct loclist +{ + uint8_t atom; + Dwarf_Word number; + Dwarf_Word number2; + Dwarf_Word offset; + struct loclist *next; +}; + + +static int +loc_compare (const void *p1, const void *p2) +{ + const struct loc_s *l1 = (const struct loc_s *) p1; + const struct loc_s *l2 = (const struct loc_s *) p2; + + if ((uintptr_t) l1->addr < (uintptr_t) l2->addr) + return -1; + if ((uintptr_t) l1->addr > (uintptr_t) l2->addr) + return 1; + + return 0; +} + +static int +getloclist (struct Dwarf_CU *cu, const Dwarf_Block *block, + Dwarf_Loc **llbuf, size_t *listlen) +{ + Dwarf *dbg = cu->dbg; + + /* Check whether we already looked at this list. */ + struct loc_s fake = { .addr = block->data }; + struct loc_s **found = tfind (&fake, &cu->locs, loc_compare); + if (found != NULL) + { + /* We already saw it. */ + *llbuf = (*found)->loc; + *listlen = (*found)->nloc; + + return 0; + } + + const unsigned char *data = block->data; + const unsigned char *const end_data = data + block->length; + + struct loclist *loclist = NULL; + unsigned int n = 0; + /* Decode the opcodes. It is possible in some situations to have a + block of size zero. */ + while (data < end_data) + { + struct loclist *newloc; + newloc = (struct loclist *) alloca (sizeof (struct loclist)); + newloc->number = 0; + newloc->number2 = 0; + newloc->offset = data - block->data; + newloc->next = loclist; + loclist = newloc; + ++n; + + switch ((newloc->atom = *data++)) + { + case DW_OP_addr: + /* Address, depends on address size of CU. */ + if (cu->address_size == 4) + { + if (unlikely (data + 4 > end_data)) + { + invalid: + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1; + } + + newloc->number = read_4ubyte_unaligned_inc (dbg, data); + } + else + { + if (unlikely (data + 8 > end_data)) + goto invalid; + + newloc->number = read_8ubyte_unaligned_inc (dbg, data); + } + break; + + case DW_OP_deref: + case DW_OP_dup: + case DW_OP_drop: + case DW_OP_over: + case DW_OP_swap: + case DW_OP_rot: + case DW_OP_xderef: + case DW_OP_abs: + case DW_OP_and: + case DW_OP_div: + case DW_OP_minus: + case DW_OP_mod: + case DW_OP_mul: + case DW_OP_neg: + case DW_OP_not: + case DW_OP_or: + case DW_OP_plus: + case DW_OP_shl: + case DW_OP_shr: + case DW_OP_shra: + case DW_OP_xor: + case DW_OP_eq: + case DW_OP_ge: + case DW_OP_gt: + case DW_OP_le: + case DW_OP_lt: + case DW_OP_ne: + case DW_OP_lit0 ... DW_OP_lit31: + case DW_OP_reg0 ... DW_OP_reg31: + case DW_OP_nop: + case DW_OP_push_object_address: + case DW_OP_call_ref: + /* No operand. */ + break; + + case DW_OP_const1u: + case DW_OP_pick: + case DW_OP_deref_size: + case DW_OP_xderef_size: + if (unlikely (data >= end_data)) + goto invalid; + + newloc->number = *data++; + break; + + case DW_OP_const1s: + if (unlikely (data >= end_data)) + goto invalid; + + newloc->number = *((int8_t *) data); + ++data; + break; + + case DW_OP_const2u: + if (unlikely (data + 2 > end_data)) + goto invalid; + + newloc->number = read_2ubyte_unaligned_inc (dbg, data); + break; + + case DW_OP_const2s: + case DW_OP_skip: + case DW_OP_bra: + case DW_OP_call2: + if (unlikely (data + 2 > end_data)) + goto invalid; + + newloc->number = read_2sbyte_unaligned_inc (dbg, data); + break; + + case DW_OP_const4u: + if (unlikely (data + 4 > end_data)) + goto invalid; + + newloc->number = read_4ubyte_unaligned_inc (dbg, data); + break; + + case DW_OP_const4s: + case DW_OP_call4: + if (unlikely (data + 4 > end_data)) + goto invalid; + + newloc->number = read_4sbyte_unaligned_inc (dbg, data); + break; + + case DW_OP_const8u: + if (unlikely (data + 8 > end_data)) + goto invalid; + + newloc->number = read_8ubyte_unaligned_inc (dbg, data); + break; + + case DW_OP_const8s: + if (unlikely (data + 8 > end_data)) + goto invalid; + + newloc->number = read_8sbyte_unaligned_inc (dbg, data); + break; + + case DW_OP_constu: + case DW_OP_plus_uconst: + case DW_OP_regx: + case DW_OP_piece: + /* XXX Check size. */ + get_uleb128 (newloc->number, data); + break; + + case DW_OP_consts: + case DW_OP_breg0 ... DW_OP_breg31: + case DW_OP_fbreg: + /* XXX Check size. */ + get_sleb128 (newloc->number, data); + break; + + case DW_OP_bregx: + /* XXX Check size. */ + get_uleb128 (newloc->number, data); + get_sleb128 (newloc->number2, data); + break; + + default: + goto invalid; + } + } + + if (unlikely (n == 0)) + { + /* This is not allowed. + + XXX Is it? */ + goto invalid; + } + + /* Allocate the array. */ + Dwarf_Loc *result = libdw_alloc (dbg, Dwarf_Loc, sizeof (Dwarf_Loc), n); + + /* Store the result. */ + *llbuf = result; + *listlen = n; + + do + { + /* We populate the array from the back since the list is + backwards. */ + --n; + result[n].atom = loclist->atom; + result[n].number = loclist->number; + result[n].number2 = loclist->number2; + result[n].offset = loclist->offset; + + loclist = loclist->next; + } + while (n > 0); + + /* Insert a record in the search tree so that we can find it again + later. */ + struct loc_s *newp = libdw_alloc (dbg, struct loc_s, sizeof (struct loc_s), + 1); + newp->addr = block->data; + newp->loc = result; + newp->nloc = *listlen; + (void) tsearch (newp, &cu->locs, loc_compare); + + /* We did it. */ + return 0; +} + +int +dwarf_getloclist (attr, llbuf, listlen) + Dwarf_Attribute *attr; + Dwarf_Loc **llbuf; + size_t *listlen; +{ + if (! attr_ok (attr)) + return -1; + + /* If it has a block form, it's a single location expression. */ + Dwarf_Block block; + if (INTUSE(dwarf_formblock) (attr, &block) != 0) + return -1; + + return getloclist (attr->cu, &block, llbuf, listlen); +} + +int +dwarf_addrloclists (attr, address, llbufs, listlens, maxlocs) + Dwarf_Attribute *attr; + Dwarf_Addr address; + Dwarf_Loc **llbufs; + size_t *listlens; + size_t maxlocs; +{ + if (! attr_ok (attr)) + return -1; + + if (llbufs == NULL) + maxlocs = SIZE_MAX; + + /* If it has a block form, it's a single location expression. */ + Dwarf_Block block; + if (INTUSE(dwarf_formblock) (attr, &block) == 0) + { + if (maxlocs == 0) + return 0; + if (llbufs != NULL && + getloclist (attr->cu, &block, &llbufs[0], &listlens[0]) != 0) + return -1; + return listlens[0] == 0 ? 0 : 1; + } + + int error = INTUSE(dwarf_errno) (); + if (error != DWARF_E_NO_BLOCK) + { + __libdw_seterrno (error); + return -1; + } + + /* Must have the form data4 or data8 which act as an offset. */ + Dwarf_Word offset; + if (INTUSE(dwarf_formudata) (attr, &offset) != 0) + return -1; + + const Elf_Data *d = attr->cu->dbg->sectiondata[IDX_debug_loc]; + if (d == NULL) + { + __libdw_seterrno (DWARF_E_NO_LOCLIST); + return -1; + } + + /* Fetch the CU's base address. */ + Dwarf_Addr base; + Dwarf_Die cudie = + { + .cu = attr->cu, + .addr = ((char *) attr->cu->dbg->sectiondata[IDX_debug_info]->d_buf + + attr->cu->start + 3 * attr->cu->offset_size - 4 + 3), + }; + + + /* Find the base address of the compilation unit. It will + normally be specified by DW_AT_low_pc. In DWARF-3 draft 4, + the base address could be overridden by DW_AT_entry_pc. It's + been removed, but GCC emits DW_AT_entry_pc and not DW_AT_lowpc + for compilation units with discontinuous ranges. */ + Dwarf_Attribute attr_mem; + if (INTUSE(dwarf_lowpc) (&cudie, &base) != 0 + && INTUSE(dwarf_formaddr) (INTUSE(dwarf_attr) (&cudie, DW_AT_entry_pc, + &attr_mem), + &base) != 0) + return -1; + + unsigned char *readp = d->d_buf + offset; + size_t got = 0; + while (got < maxlocs) + { + if ((unsigned char *) d->d_buf + d->d_size - readp + < attr->cu->address_size * 2) + { + invalid: + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1; + } + + Dwarf_Addr begin; + Dwarf_Addr end; + if (attr->cu->address_size == 8) + { + begin = read_8ubyte_unaligned_inc (attr->cu->dbg, readp); + end = read_8ubyte_unaligned_inc (attr->cu->dbg, readp); + + if (begin == (Elf64_Addr) -1l) /* Base address entry. */ + { + base = end; + continue; + } + } + else + { + begin = read_4ubyte_unaligned_inc (attr->cu->dbg, readp); + end = read_4ubyte_unaligned_inc (attr->cu->dbg, readp); + + if (begin == (Elf32_Addr) -1) /* Base address entry. */ + { + base = end; + continue; + } + } + + if (begin == 0 && end == 0) /* End of list entry. */ + break; + + if ((unsigned char *) d->d_buf + d->d_size - readp < 2) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1; + } + + /* We have a location expression. */ + block.length = read_2ubyte_unaligned_inc (attr->cu->dbg, readp); + block.data = readp; + if ((unsigned char *) d->d_buf + d->d_size - readp + < (ptrdiff_t) block.length) + goto invalid; + readp += block.length; + + if (address >= base + begin && address < base + end) + { + /* This one matches the address. */ + if (llbufs != NULL && getloclist (attr->cu, &block, + &llbufs[got], &listlens[got]) != 0) + return -1; + ++got; + } + } + + return got; +} diff --git a/libdw/dwarf_getmacros.c b/libdw/dwarf_getmacros.c new file mode 100644 index 0000000..d3678c9 --- /dev/null +++ b/libdw/dwarf_getmacros.c @@ -0,0 +1,119 @@ +/* Get macro information. + Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +ptrdiff_t +dwarf_getmacros (die, callback, arg, offset) + Dwarf_Die *die; + int (*callback) (Dwarf_Macro *, void *); + void *arg; + ptrdiff_t offset; +{ + /* Get the appropriate attribute. */ + Dwarf_Attribute attr; + if (INTUSE(dwarf_attr) (die, DW_AT_macro_info, &attr) == NULL) + return -1; + + /* Offset into the .debug_macinfo section. */ + Dwarf_Word macoff; + if (INTUSE(dwarf_formudata) (&attr, &macoff) != 0) + return -1; + + const unsigned char *readp + = die->cu->dbg->sectiondata[IDX_debug_macinfo]->d_buf + offset; + const unsigned char *readendp + = readp + die->cu->dbg->sectiondata[IDX_debug_macinfo]->d_size; + + if (readp == readendp) + return 0; + + if (*readp != DW_MACINFO_start_file) + goto invalid; + + while (readp < readendp) + { + unsigned int opcode = *readp++; + unsigned int u128; + unsigned int u128_2 = 0; + const char *str = NULL; + const unsigned char *endp; + + switch (opcode) + { + case DW_MACINFO_define: + case DW_MACINFO_undef: + case DW_MACINFO_vendor_ext: + /* For the first two opcodes the parameters are + line, string + For the latter + number, string. + We can treat these cases together. */ + get_uleb128 (u128, readp); + + endp = memchr (readp, '\0', readendp - readp); + if (endp == NULL) + goto invalid; + + str = (char *) readp; + readp = endp + 1; + break; + + case DW_MACINFO_start_file: + /* The two parameters are line and file index. */ + get_uleb128 (u128, readp); + get_uleb128 (u128_2, readp); + break; + + case DW_MACINFO_end_file: + /* No parameters for this one. */ + u128 = 0; + break; + + case 0: + /* Nothing more to do. */ + return 0; + + default: + goto invalid; + } + + Dwarf_Macro mac; + mac.opcode = opcode; + mac.param1 = u128; + if (str == NULL) + mac.param2.u = u128_2; + else + mac.param2.s = str; + + if (callback (&mac, arg) != DWARF_CB_OK) + return (readp + - ((unsigned char *) die->cu->dbg->sectiondata[IDX_debug_macinfo]->d_buf + + offset)); + } + + /* If we come here the termination of the data for the CU is not + present. */ + invalid: + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1; +} diff --git a/libdw/dwarf_getpubnames.c b/libdw/dwarf_getpubnames.c new file mode 100644 index 0000000..5700cd7 --- /dev/null +++ b/libdw/dwarf_getpubnames.c @@ -0,0 +1,213 @@ +/* Get public symbol information. + Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include + + +static int +get_offsets (Dwarf *dbg) +{ + size_t allocated = 0; + size_t cnt = 0; + struct pubnames_s *mem = NULL; + const size_t entsize = sizeof (struct pubnames_s); + unsigned char *const startp = dbg->sectiondata[IDX_debug_pubnames]->d_buf; + unsigned char *readp = startp; + unsigned char *endp = readp + dbg->sectiondata[IDX_debug_pubnames]->d_size; + + while (readp + 14 < endp) + { + /* If necessary, allocate more entries. */ + if (cnt >= allocated) + { + allocated = MAX (10, 2 * allocated); + struct pubnames_s *newmem + = (struct pubnames_s *) realloc (mem, allocated * entsize); + if (newmem == NULL) + { + __libdw_seterrno (DWARF_E_NOMEM); + err_return: + free (mem); + return -1; + } + + mem = newmem; + } + + /* Read the set header. */ + int len_bytes = 4; + Dwarf_Off len = read_4ubyte_unaligned_inc (dbg, readp); + if (len == 0xffffffff) + { + len = read_8ubyte_unaligned_inc (dbg, readp); + len_bytes = 8; + } + + /* Now we know the offset of the first offset/name pair. */ + mem[cnt].set_start = readp + 2 + 2 * len_bytes - startp; + mem[cnt].address_len = len_bytes; + if (mem[cnt].set_start >= dbg->sectiondata[IDX_debug_pubnames]->d_size) + /* Something wrong, the first entry is beyond the end of + the section. */ + break; + + /* Read the version. It better be two for now. */ + uint16_t version = read_2ubyte_unaligned (dbg, readp); + if (version != 2) + { + __libdw_seterrno (DWARF_E_INVALID_VERSION); + goto err_return; + } + + /* Get the CU offset. */ + if (len_bytes == 4) + mem[cnt].cu_offset = read_4ubyte_unaligned (dbg, readp + 2); + else + mem[cnt].cu_offset = read_8ubyte_unaligned (dbg, readp + 2); + + /* Determine the size of the CU header. */ + assert (dbg->sectiondata[IDX_debug_info] != NULL); + assert (dbg->sectiondata[IDX_debug_info]->d_buf != NULL); + assert (mem[cnt].cu_offset + 3 + < dbg->sectiondata[IDX_debug_info]->d_size); + unsigned char *infop + = ((unsigned char *) dbg->sectiondata[IDX_debug_info]->d_buf + + mem[cnt].cu_offset); + if (read_4ubyte_unaligned_noncvt (infop) == 0xffffffff) + mem[cnt].cu_header_size = 23; + else + mem[cnt].cu_header_size = 11; + + ++cnt; + + /* Advance to the next set. */ + readp += len; + } + + if (mem == NULL) + { + __libdw_seterrno (DWARF_E_NO_ENTRY); + return -1; + } + + dbg->pubnames_sets = (struct pubnames_s *) realloc (mem, cnt * entsize); + dbg->pubnames_nsets = cnt; + + return 0; +} + + +ptrdiff_t +dwarf_getpubnames (dbg, callback, arg, offset) + Dwarf *dbg; + int (*callback) (Dwarf *, Dwarf_Global *, void *); + void *arg; + ptrdiff_t offset; +{ + if (dbg == NULL) + return -1l; + + if (offset < 0) + { + __libdw_seterrno (DWARF_E_INVALID_OFFSET); + return -1l; + } + + /* Make sure it is a valid offset. */ + if (unlikely (dbg->sectiondata[IDX_debug_pubnames] == NULL + || ((size_t) offset + >= dbg->sectiondata[IDX_debug_pubnames]->d_size))) + /* No (more) entry. */ + return 0; + + /* If necessary read the set information. */ + if (dbg->pubnames_nsets == 0 && get_offsets (dbg) != 0) + return -1l; + + /* Find the place where to start. */ + size_t cnt; + if (offset == 0) + { + cnt = 0; + offset = dbg->pubnames_sets[0].set_start; + } + else + { + for (cnt = 0; cnt + 1 < dbg->pubnames_nsets; ++cnt) + if ((Dwarf_Off) offset >= dbg->pubnames_sets[cnt].set_start) + { + assert ((Dwarf_Off) offset + < dbg->pubnames_sets[cnt + 1].set_start); + break; + } + assert (cnt + 1 < dbg->pubnames_nsets); + } + + unsigned char *startp + = (unsigned char *) dbg->sectiondata[IDX_debug_pubnames]->d_buf; + unsigned char *readp = startp + offset; + while (1) + { + Dwarf_Global gl; + + gl.cu_offset = (dbg->pubnames_sets[cnt].cu_offset + + dbg->pubnames_sets[cnt].cu_header_size); + + while (1) + { + /* READP points to the next offset/name pair. */ + if (dbg->pubnames_sets[cnt].address_len == 4) + gl.die_offset = read_4ubyte_unaligned_inc (dbg, readp); + else + gl.die_offset = read_8ubyte_unaligned_inc (dbg, readp); + + /* If the offset is zero we reached the end of the set. */ + if (gl.die_offset == 0) + break; + + /* Add the CU offset. */ + gl.die_offset += dbg->pubnames_sets[cnt].cu_offset; + + gl.name = (char *) readp; + readp = (unsigned char *) rawmemchr (gl.name, '\0') + 1; + + /* We found name and DIE offset. Report it. */ + if (callback (dbg, &gl, arg) != DWARF_CB_OK) + { + /* The user wants us to stop. Return the offset of the + next entry. */ + return readp - startp; + } + } + + if (++cnt == dbg->pubnames_nsets) + /* This was the last set. */ + break; + + startp = (unsigned char *) dbg->sectiondata[IDX_debug_pubnames]->d_buf; + readp = startp + dbg->pubnames_sets[cnt].set_start; + } + + /* We are done. No more entries. */ + return 0; +} diff --git a/libdw/dwarf_getscopes.c b/libdw/dwarf_getscopes.c new file mode 100644 index 0000000..21d6f20 --- /dev/null +++ b/libdw/dwarf_getscopes.c @@ -0,0 +1,334 @@ +/* Return scope DIEs containing PC address. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" +#include + + +enum die_class { ignore, match, match_inline, walk, imported }; + +static enum die_class +classify_die (Dwarf_Die *die) +{ + switch (INTUSE(dwarf_tag) (die)) + { + /* DIEs with addresses we can try to match. */ + case DW_TAG_compile_unit: + case DW_TAG_module: + case DW_TAG_lexical_block: + case DW_TAG_with_stmt: + case DW_TAG_catch_block: + case DW_TAG_try_block: + case DW_TAG_entry_point: + return match; + case DW_TAG_inlined_subroutine: + return match_inline; + case DW_TAG_subprogram: + /* This might be a concrete out-of-line instance of an inline, in + which case it is not guaranteed to be owned by the right scope and + we will search for its origin as for DW_TAG_inlined_subroutine. */ + return (INTUSE(dwarf_hasattr) (die, DW_AT_abstract_origin) + ? match_inline : match); + + /* DIEs without addresses that can own DIEs with addresses. */ + case DW_TAG_namespace: + return walk; + + /* Special indirection required. */ + case DW_TAG_imported_unit: + return imported; + + /* Other DIEs we have no reason to descend. */ + default: + break; + } + return ignore; +} + +/* DIE contains PC. Find its child that contains PC. Returns -1 for + errors, 0 for no matches. On success, *SCOPES gets the malloc'd array + of containing scopes. A positive return value is the number of those + scopes. A return value < -1 is -1 - number of those scopes, when the + outermost scope is a concrete instance of an inline subroutine. */ +static int +find_pc (unsigned int depth, Dwarf_Die *die, Dwarf_Addr pc, Dwarf_Die **scopes) +{ + Dwarf_Die child; + if (INTUSE(dwarf_child) (die, &child) != 0) + return -1; + + /* Recurse on this DIE to search within its children. + Return nonzero if this gets an error or a final result. */ + inline int search_child (void) + { + int n = find_pc (depth + 1, &child, pc, scopes); + if (n > 0) + /* That stored the N innermost scopes. Now store ours. */ + (*scopes)[n++] = child; + return n; + } + + /* Check each of our child DIEs. */ + enum die_class got = ignore; + do + { + enum die_class child_class = classify_die (&child); + switch (child_class) + { + case match: + case match_inline: + if (INTUSE(dwarf_haspc) (&child, pc) > 0) + break; + continue; + + case walk: + if (INTUSE(dwarf_haschildren) (&child)) + got = walk; + continue; + + case imported: + got = walk; + continue; + + default: + case ignore: + continue; + } + + /* We get here only when the PC has matched. */ + got = child_class; + break; + } + while (INTUSE(dwarf_siblingof) (&child, &child) == 0); + + switch (got) + { + case match: + case match_inline: + /* We have a DIE that matched the PC. */ + if (INTUSE(dwarf_haschildren) (&child)) + { + /* Recurse on this DIE to narrow within its children. + Return now if this gets an error or a final result. */ + int result = search_child (); + if (result < 0 || (got == match && result > 0)) + return result; + if (result > 0) /* got == match_inline */ + /* We have a winner, but CHILD is a concrete inline instance + so DIE and its containing scopes do not actually apply. + DIE is the scope that inlined the function. Our root + caller must find the abstract scope that defines us. */ + return -1 - result; + } + + /* This DIE has no children containing the PC, so this is it. */ + *scopes = malloc (depth * sizeof (*scopes)[0]); + if (*scopes == NULL) + { + __libdw_seterrno (DWARF_E_NOMEM); + return -1; + } + (*scopes)[0] = child; + return got == match ? 1 : -2; + + case walk: + /* We don't have anything matching the PC, but we have some things + we might descend to find one. Recurse on each of those. */ + if (INTUSE(dwarf_child) (die, &child) != 0) + return -1; + do + switch (classify_die (&child)) + { + case walk: + if (INTUSE(dwarf_haschildren) (&child)) + { + /* Recurse on this DIE to look for the PC within its children. + Return now if this gets an error or a final result. */ + int result = search_child (); + if (result != 0) + return result; + } + break; + + case imported: + { + /* This imports another compilation unit to appear + as part of this one, inside the current scope. + Recurse to search the referenced unit, but without + recording it as an inner scoping level. */ + + Dwarf_Attribute attr_mem; + Dwarf_Attribute *attr = INTUSE(dwarf_attr) (&child, DW_AT_import, + &attr_mem); + if (INTUSE(dwarf_formref_die) (attr, &child) != NULL) + { + int result = find_pc (depth, &child, pc, scopes); + if (result != 0) + return result; + } + } + break; + + default: + break; + } + while (INTUSE(dwarf_siblingof) (&child, &child) == 0); + break; + + default: + case ignore: + /* Nothing to see here. */ + break; + } + + /* No matches. */ + return 0; +} + + +/* OWNER owns OWNED. Find intermediate scopes. *SCOPES was allocated by + find_pc and has SKIP elements. We realloc it, append more containing + scopes, and return 1 + the number appended. Returns -1 on errors, + or 0 when OWNED was not found within OWNER. */ +static int +find_die (unsigned int depth, Dwarf_Die *owner, Dwarf_Die *owned, + Dwarf_Die **scopes, unsigned int skip) +{ + Dwarf_Die child; + if (INTUSE(dwarf_child) (owner, &child) != 0) + return -1; + + do + { + if (child.addr == owned->addr) + /* This is the one. OWNER is the innermost owner. */ + return 1; + + /* Unfortunately we cannot short-circuit the dead-end paths just by + checking the physical layout to see if OWNED falls within CHILD. + If it doesn't, there may still be a DW_TAG_imported_unit that + refers to its true owner indirectly. */ + + switch (classify_die (&child)) + { + case match: + case match_inline: + case walk: + if (INTUSE(dwarf_haschildren) (&child)) + { + /* Recurse on this DIE to look for OWNED within its children. + Return now if this gets an error or a final result. */ + int n = find_die (depth + 1, &child, owned, scopes, skip); + if (n < 0) + return n; + if (n > 1) + { + /* We have a winner. CHILD owns the owner of OWNED. */ + (*scopes)[skip + n - 1] = child; + return n + 1; + } + if (n > 0) /* n == 1 */ + { + /* CHILD is the direct owner of OWNED. */ + Dwarf_Die *nscopes = realloc (*scopes, + (skip + depth) + * sizeof nscopes[0]); + if (nscopes == NULL) + { + free (*scopes); + *scopes = NULL; + __libdw_seterrno (DWARF_E_NOMEM); + return -1; + } + nscopes[skip] = child; + *scopes = nscopes; + return 2; + } + } + break; + + case imported: + { + /* This is imports another compilation unit to appear + as part of this one, inside the current scope. + Recurse to search the referenced unit, but without + recording it as an inner scoping level. */ + + Dwarf_Attribute attr_mem; + Dwarf_Attribute *attr = INTUSE(dwarf_attr) (&child, DW_AT_import, + &attr_mem); + if (INTUSE(dwarf_formref_die) (attr, &child) != NULL) + { + int result = find_die (depth, &child, owner, scopes, skip); + if (result != 0) + return result; + } + } + break; + + default: + break; + } + } + while (INTUSE(dwarf_siblingof) (&child, &child) == 0); + + return 0; +} + + +int +dwarf_getscopes (Dwarf_Die *cudie, Dwarf_Addr pc, Dwarf_Die **scopes) +{ + if (cudie == NULL) + return -1; + + int n = find_pc (1, cudie, pc, scopes); + if (likely (n >= -1)) + /* We have an error or a final result. */ + return n; + + /* We have the scopes out to one that is a concrete instance of an + inlined subroutine (usually DW_TAG_inlined_subroutine, but can + be DW_TAG_subprogram for a concrete out-of-line instance). + Now we must find the lexical scopes that contain the + corresponding abstract inline subroutine definition. */ + + n = -n - 1; + + Dwarf_Attribute attr_mem; + Dwarf_Die die_mem; + Dwarf_Die *origin = INTUSE(dwarf_formref_die) + (INTUSE(dwarf_attr) (&(*scopes)[n - 1], DW_AT_abstract_origin, &attr_mem), + &die_mem); + if (unlikely (origin == NULL)) + goto invalid; + + int result = find_die (0, cudie, origin, scopes, n); + if (likely (result > 0)) + return n + result - 1; + + if (result == 0) /* No match, shouldn't happen. */ + { + invalid: + __libdw_seterrno (DWARF_E_INVALID_DWARF); + } + + free (*scopes); + *scopes = NULL; + return -1; +} diff --git a/libdw/dwarf_getscopevar.c b/libdw/dwarf_getscopevar.c new file mode 100644 index 0000000..3ceb292 --- /dev/null +++ b/libdw/dwarf_getscopevar.c @@ -0,0 +1,147 @@ +/* Find a named variable or parameter within given scopes. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libdwP.h" +#include + + +/* Find the containing CU's files. */ +static int +getfiles (Dwarf_Die *die, Dwarf_Files **files) +{ + Dwarf_Die cudie = + { + .cu = die->cu, + .addr = ((char *) die->cu->dbg->sectiondata[IDX_debug_info]->d_buf + + 3 * die->cu->offset_size - 4 + 3), + }; + return INTUSE(dwarf_getsrcfiles) (&cudie, files, NULL); +} + +/* Fetch an attribute that should have a constant integer form. */ +static int +getattr (Dwarf_Die *die, int search_name, Dwarf_Word *value) +{ + Dwarf_Attribute attr_mem; + return INTUSE(dwarf_formudata) (INTUSE(dwarf_attr) (die, search_name, + &attr_mem), value); +} + +/* Search SCOPES[0..NSCOPES-1] for a variable called NAME. + Ignore the first SKIP_SHADOWS scopes that match the name. + If MATCH_FILE is not null, accept only declaration in that source file; + if MATCH_LINENO or MATCH_LINECOL are also nonzero, accept only declaration + at that line and column. + + If successful, fill in *RESULT with the DIE of the variable found, + and return N where SCOPES[N] is the scope defining the variable. + Return -1 for errors or -2 for no matching variable found. */ + +int +dwarf_getscopevar (Dwarf_Die *scopes, int nscopes, + const char *name, int skip_shadows, + const char *match_file, int match_lineno, int match_linecol, + Dwarf_Die *result) +{ + /* Match against the given file name. */ + size_t match_file_len = match_file == NULL ? 0 : strlen (match_file); + bool lastfile_matches = false; + const char *lastfile = NULL; + inline bool file_matches (Dwarf_Files *files, size_t idx) + { + if (idx >= files->nfiles) + return false; + + const char *file = files->info[idx].name; + if (file != lastfile) + { + size_t len = strlen (file); + lastfile_matches = (len >= match_file_len + && !memcmp (match_file, file, match_file_len) + && (len == match_file_len + || file[len - match_file_len - 1] == '/')); + } + return lastfile_matches; + } + + /* Start with the innermost scope and move out. */ + for (int out = 0; out < nscopes; ++out) + if (INTUSE(dwarf_haschildren) (&scopes[out])) + { + if (INTUSE(dwarf_child) (&scopes[out], result) != 0) + return -1; + do + { + switch (INTUSE(dwarf_tag) (result)) + { + case DW_TAG_variable: + case DW_TAG_formal_parameter: + break; + + default: + continue; + } + + /* Only get here for a variable or parameter. Check the name. */ + Dwarf_Attribute attr_mem; + const char *diename = INTUSE(dwarf_formstring) + (INTUSE(dwarf_attr_integrate) (result, DW_AT_name, &attr_mem)); + if (diename != NULL && !strcmp (name, diename)) + { + /* We have a matching name. */ + + if (skip_shadows > 0) + { + /* Punt this scope for the one it shadows. */ + --skip_shadows; + break; + } + + if (match_file != NULL) + { + /* Check its decl_file. */ + + Dwarf_Word i; + Dwarf_Files *files; + if (getattr (result, DW_AT_decl_file, &i) != 0 + || getfiles (&scopes[out], &files) != 0) + break; + + if (!file_matches (files, i)) + break; + + if (match_lineno > 0 + && (getattr (result, DW_AT_decl_line, &i) != 0 + || (int) i != match_lineno)) + break; + if (match_linecol > 0 + && (getattr (result, DW_AT_decl_column, &i) != 0 + || (int) i != match_linecol)) + break; + } + + /* We have a winner! */ + return out; + } + } + while (INTUSE(dwarf_siblingof) (result, result) == 0); + } + + return -2; +} diff --git a/libdw/dwarf_getsrc_die.c b/libdw/dwarf_getsrc_die.c new file mode 100644 index 0000000..e3ce4f2 --- /dev/null +++ b/libdw/dwarf_getsrc_die.c @@ -0,0 +1,58 @@ +/* Find line information for address. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" +#include + + +Dwarf_Line * +dwarf_getsrc_die (Dwarf_Die *cudie, Dwarf_Addr addr) +{ + Dwarf_Lines *lines; + size_t nlines; + + if (INTUSE(dwarf_getsrclines) (cudie, &lines, &nlines) != 0) + return NULL; + + /* The lines are sorted by address, so we can use binary search. */ + size_t l = 0, u = nlines; + while (l < u) + { + size_t idx = (l + u) / 2; + if (addr < lines->info[idx].addr) + u = idx; + else if (addr > lines->info[idx].addr) + l = idx + 1; + else + return &lines->info[idx]; + } + + if (nlines > 0) + assert (lines->info[nlines - 1].end_sequence); + + /* If none were equal, the closest one below is what we want. We + never want the last one, because it's the end-sequence marker + with an address at the high bound of the CU's code. If the debug + information is faulty and no end-sequence marker is present, we + still ignore it. */ + if (u > 0 && u < nlines && addr > lines->info[u - 1].addr) + return &lines->info[u - 1]; + + __libdw_seterrno (DWARF_E_ADDR_OUTOFRANGE); + return NULL; +} diff --git a/libdw/dwarf_getsrc_file.c b/libdw/dwarf_getsrc_file.c new file mode 100644 index 0000000..a10581d --- /dev/null +++ b/libdw/dwarf_getsrc_file.c @@ -0,0 +1,158 @@ +/* Find line information for given file/line/column triple. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include "libdwP.h" + + +int +dwarf_getsrc_file (Dwarf *dbg, const char *fname, int lineno, int column, + Dwarf_Line ***srcsp, size_t *nsrcs) +{ + if (dbg == NULL) + return -1; + + bool is_basename = strchr (fname, '/') == NULL; + + size_t max_match = *nsrcs ?: ~0u; + size_t act_match = *nsrcs; + size_t cur_match = 0; + Dwarf_Line **match = *nsrcs == 0 ? NULL : *srcsp; + + Dwarf_Off off = 0; + size_t cuhl; + Dwarf_Off noff; + + while (INTUSE(dwarf_nextcu) (dbg, off, &noff, &cuhl, NULL, NULL, NULL) == 0) + { + Dwarf_Die cudie_mem; + Dwarf_Die *cudie = INTUSE(dwarf_offdie) (dbg, off + cuhl, &cudie_mem); + if (cudie == NULL) + continue; + + /* Get the line number information for this file. */ + Dwarf_Lines *lines; + size_t nlines; + if (INTUSE(dwarf_getsrclines) (cudie, &lines, &nlines) != 0) + return -1; + + /* Search through all the line number records for a matching + file and line/column number. If any of the numbers is zero, + no match is performed. */ + unsigned int lastfile = UINT_MAX; + bool lastmatch = false; + for (size_t cnt = 0; cnt < nlines; ++cnt) + { + Dwarf_Line *line = &lines->info[cnt]; + + if (lastfile != line->file) + { + lastfile = line->file; + if (lastfile >= line->files->nfiles) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1; + } + + /* Match the name with the name the user provided. */ + const char *fname2 = line->files->info[lastfile].name; + if (is_basename) + lastmatch = strcmp (basename (fname2), fname) == 0; + else + lastmatch = strcmp (fname2, fname) == 0; + } + if (!lastmatch) + continue; + + /* See whether line and possibly column match. */ + if (lineno != 0 + && (lineno > line->line + || (column != 0 && column > line->column))) + /* Cannot match. */ + continue; + + /* Determine whether this is the best match so far. */ + size_t inner; + for (inner = 0; inner < cur_match; ++inner) + if (match[inner]->files == line->files + && match[inner]->file == line->file) + break; + if (inner < cur_match + && (match[inner]->line != line->line + || match[inner]->line != lineno + || (column != 0 + && (match[inner]->column != line->column + || match[inner]->column != column)))) + { + /* We know about this file already. If this is a better + match for the line number, use it. */ + if (match[inner]->line >= line->line + && (match[inner]->line != line->line + || match[inner]->column >= line->column)) + /* Use the new line. Otherwise the old one. */ + match[inner] = line; + continue; + } + + if (cur_match < max_match) + { + if (cur_match == act_match) + { + /* Enlarge the array for the results. */ + act_match += 10; + Dwarf_Line **newp = realloc (match, + act_match + * sizeof (Dwarf_Line *)); + if (newp == NULL) + { + free (match); + __libdw_seterrno (DWARF_E_NOMEM); + return -1; + } + match = newp; + } + + match[cur_match++] = line; + } + } + + /* If we managed to find as many matches as the user requested + already, there is no need to go on to the next CU. */ + if (cur_match == max_match) + break; + + off = noff; + } + + if (cur_match > 0) + { + assert (*nsrcs == 0 || *srcsp == match); + + *nsrcs = cur_match; + *srcsp = match; + + return 0; + } + + __libdw_seterrno (DWARF_E_NO_MATCH); + return -1; +} diff --git a/libdw/dwarf_getsrcfiles.c b/libdw/dwarf_getsrcfiles.c new file mode 100644 index 0000000..6472bf4 --- /dev/null +++ b/libdw/dwarf_getsrcfiles.c @@ -0,0 +1,60 @@ +/* Return source file information of CU. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libdwP.h" + + +int +dwarf_getsrcfiles (Dwarf_Die *cudie, Dwarf_Files **files, size_t *nfiles) +{ + if (unlikely (cudie == NULL + || INTUSE(dwarf_tag) (cudie) != DW_TAG_compile_unit)) + return -1; + + int res = -1; + + /* Get the information if it is not already known. */ + struct Dwarf_CU *const cu = cudie->cu; + if (cu->lines == NULL) + { + Dwarf_Lines *lines; + size_t nlines; + + /* Let the more generic function do the work. It'll create more + data but that will be needed in an real program anyway. */ + res = INTUSE(dwarf_getsrclines) (cudie, &lines, &nlines); + } + else if (cu->files != (void *) -1l) + /* We already have the information. */ + res = 0; + + if (likely (res == 0)) + { + assert (cu->files != NULL && cu->files != (void *) -1l); + *files = cu->files; + if (nfiles != NULL) + *nfiles = cu->files->nfiles; + } + + // XXX Eventually: unlocking here. + + return res; +} +INTDEF (dwarf_getsrcfiles) diff --git a/libdw/dwarf_getsrclines.c b/libdw/dwarf_getsrclines.c new file mode 100644 index 0000000..37e14ae --- /dev/null +++ b/libdw/dwarf_getsrclines.c @@ -0,0 +1,652 @@ +/* Return line number information of CU. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include "dwarf.h" +#include "libdwP.h" + + +struct filelist +{ + Dwarf_Fileinfo info; + struct filelist *next; +}; + +struct linelist +{ + Dwarf_Line line; + struct linelist *next; +}; + + +/* Compare by Dwarf_Line.addr, given pointers into an array of pointers. */ +static int +compare_lines (const void *a, const void *b) +{ + Dwarf_Line *const *p1 = a; + Dwarf_Line *const *p2 = b; + + return (*p1)->addr - (*p2)->addr; +} + + +/* Adds a new line to the matrix. We cannot define a function because + we want to use alloca. */ +#define NEW_LINE(end_seq) \ + do { \ + /* Add the new line. */ \ + new_line = (struct linelist *) alloca (sizeof (struct linelist)); \ + \ + /* Set the line information. */ \ + new_line->line.addr = address; \ + new_line->line.file = file; \ + new_line->line.line = line; \ + new_line->line.column = column; \ + new_line->line.is_stmt = is_stmt; \ + new_line->line.basic_block = basic_block; \ + new_line->line.end_sequence = end_seq; \ + new_line->line.prologue_end = prologue_end; \ + new_line->line.epilogue_begin = epilogue_begin; \ + \ + new_line->next = linelist; \ + linelist = new_line; \ + ++nlinelist; \ + } while (0) + + +int +dwarf_getsrclines (Dwarf_Die *cudie, Dwarf_Lines **lines, size_t *nlines) +{ + if (unlikely (cudie == NULL + || INTUSE(dwarf_tag) (cudie) != DW_TAG_compile_unit)) + return -1; + + int res = -1; + + /* Get the information if it is not already known. */ + struct Dwarf_CU *const cu = cudie->cu; + if (cu->lines == NULL) + { + /* Failsafe mode: no data found. */ + cu->lines = (void *) -1l; + cu->files = (void *) -1l; + + /* The die must have a statement list associated. */ + Dwarf_Attribute stmt_list_mem; + Dwarf_Attribute *stmt_list = INTUSE(dwarf_attr) (cudie, DW_AT_stmt_list, + &stmt_list_mem); + + /* Get the offset into the .debug_line section. NB: this call + also checks whether the previous dwarf_attr call failed. */ + Dwarf_Word offset; + if (INTUSE(dwarf_formudata) (stmt_list, &offset) != 0) + goto out; + + Dwarf *dbg = cu->dbg; + if (dbg->sectiondata[IDX_debug_line] == NULL) + { + __libdw_seterrno (DWARF_E_NO_DEBUG_LINE); + goto out; + } + const uint8_t *linep = dbg->sectiondata[IDX_debug_line]->d_buf + offset; + const uint8_t *lineendp = (dbg->sectiondata[IDX_debug_line]->d_buf + + dbg->sectiondata[IDX_debug_line]->d_size); + + /* Get the compilation directory. */ + Dwarf_Attribute compdir_attr_mem; + Dwarf_Attribute *compdir_attr = INTUSE(dwarf_attr) (cudie, + DW_AT_comp_dir, + &compdir_attr_mem); + const char *comp_dir = INTUSE(dwarf_formstring) (compdir_attr); + + if (unlikely (linep + 4 > lineendp)) + { + invalid_data: + __libdw_seterrno (DWARF_E_INVALID_DEBUG_LINE); + goto out; + } + Dwarf_Word unit_length = read_4ubyte_unaligned_inc (dbg, linep); + unsigned int length = 4; + if (unlikely (unit_length == 0xffffffff)) + { + if (unlikely (linep + 8 > lineendp)) + goto invalid_data; + unit_length = read_8ubyte_unaligned_inc (dbg, linep); + length = 8; + } + + /* Check whether we have enough room in the section. */ + if (unit_length < 2 + length + 5 * 1 + || unlikely (linep + unit_length > lineendp)) + goto invalid_data; + lineendp = linep + unit_length; + + /* The next element of the header is the version identifier. */ + uint_fast16_t version = read_2ubyte_unaligned_inc (dbg, linep); + if (unlikely (version != DWARF_VERSION)) + { + __libdw_seterrno (DWARF_E_VERSION); + goto out; + } + + /* Next comes the header length. */ + Dwarf_Word header_length; + if (length == 4) + header_length = read_4ubyte_unaligned_inc (dbg, linep); + else + header_length = read_8ubyte_unaligned_inc (dbg, linep); + const unsigned char *header_start = linep; + + /* Next the minimum instruction length. */ + uint_fast8_t minimum_instr_len = *linep++; + + /* Then the flag determining the default value of the is_stmt + register. */ + uint_fast8_t default_is_stmt = *linep++; + + /* Now the line base. */ + int_fast8_t line_base = *((int_fast8_t *) linep); + ++linep; + + /* And the line range. */ + uint_fast8_t line_range = *linep++; + + /* The opcode base. */ + uint_fast8_t opcode_base = *linep++; + + /* Remember array with the standard opcode length (-1 to account for + the opcode with value zero not being mentioned). */ + const uint8_t *standard_opcode_lengths = linep - 1; + linep += opcode_base - 1; + if (unlikely (linep >= lineendp)) + goto invalid_data; + + /* First comes the list of directories. Add the compilation + directory first since the index zero is used for it. */ + struct dirlist + { + const char *dir; + size_t len; + struct dirlist *next; + } comp_dir_elem = + { + .dir = comp_dir, + .len = comp_dir ? strlen (comp_dir) : 0, + .next = NULL + }; + struct dirlist *dirlist = &comp_dir_elem; + unsigned int ndirlist = 1; + + // XXX Directly construct array to conserve memory? + while (*linep != 0) + { + struct dirlist *new_dir = + (struct dirlist *) alloca (sizeof (*new_dir)); + + new_dir->dir = (char *) linep; + uint8_t *endp = memchr (linep, '\0', lineendp - linep); + if (endp == NULL) + goto invalid_data; + new_dir->len = endp - linep; + new_dir->next = dirlist; + dirlist = new_dir; + ++ndirlist; + linep = endp + 1; + } + /* Skip the final NUL byte. */ + ++linep; + + /* Rearrange the list in array form. */ + struct dirlist **dirarray + = (struct dirlist **) alloca (ndirlist * sizeof (*dirarray)); + while (ndirlist-- > 0) + { + dirarray[ndirlist] = dirlist; + dirlist = dirlist->next; + } + + /* Now read the files. */ + struct filelist null_file = + { + .info = + { + .name = "???", + .mtime = 0, + .length = 0 + }, + .next = NULL + }; + struct filelist *filelist = &null_file; + unsigned int nfilelist = 1; + + if (unlikely (linep >= lineendp)) + goto invalid_data; + while (*linep != 0) + { + struct filelist *new_file = + (struct filelist *) alloca (sizeof (*new_file)); + + /* First comes the file name. */ + char *fname = (char *) linep; + uint8_t *endp = memchr (fname, '\0', lineendp - linep); + if (endp == NULL) + goto invalid_data; + size_t fnamelen = endp - (uint8_t *) fname; + linep = endp + 1; + + /* Then the index. */ + Dwarf_Word diridx; + get_uleb128 (diridx, linep); + if (unlikely (diridx >= ndirlist)) + { + __libdw_seterrno (DWARF_E_INVALID_DIR_IDX); + goto out; + } + + if (*fname == '/') + /* It's an absolute path. */ + new_file->info.name = fname; + else + { + new_file->info.name = libdw_alloc (dbg, char, 1, + dirarray[diridx]->len + 1 + + fnamelen + 1); + char *cp = new_file->info.name; + + if (dirarray[diridx]->dir != NULL) + { + /* This value could be NULL in case the DW_AT_comp_dir + was not present. We cannot do much in this case. + The easiest thing is to convert the path in an + absolute path. */ + cp = stpcpy (cp, dirarray[diridx]->dir); + } + *cp++ = '/'; + strcpy (cp, fname); + assert (strlen (new_file->info.name) + < dirarray[diridx]->len + 1 + fnamelen + 1); + } + + /* Next comes the modification time. */ + get_uleb128 (new_file->info.mtime, linep); + + /* Finally the length of the file. */ + get_uleb128 (new_file->info.length, linep); + + new_file->next = filelist; + filelist = new_file; + ++nfilelist; + } + /* Skip the final NUL byte. */ + ++linep; + + /* Consistency check. */ + if (unlikely (linep != header_start + header_length)) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + goto out; + } + + /* We are about to process the statement program. Initialize the + state machine registers (see 6.2.2 in the v2.1 specification). */ + Dwarf_Word address = 0; + size_t file = 1; + size_t line = 1; + size_t column = 0; + uint_fast8_t is_stmt = default_is_stmt; + int basic_block = 0; + int prologue_end = 0; + int epilogue_begin = 0; + + /* Process the instructions. */ + struct linelist *linelist = NULL; + unsigned int nlinelist = 0; + while (linep < lineendp) + { + struct linelist *new_line; + unsigned int opcode; + unsigned int u128; + int s128; + + /* Read the opcode. */ + opcode = *linep++; + + /* Is this a special opcode? */ + if (likely (opcode >= opcode_base)) + { + /* Yes. Handling this is quite easy since the opcode value + is computed with + + opcode = (desired line increment - line_base) + + (line_range * address advance) + opcode_base + */ + int line_increment = (line_base + + (opcode - opcode_base) % line_range); + unsigned int address_increment = (minimum_instr_len + * ((opcode - opcode_base) + / line_range)); + + /* Perform the increments. */ + line += line_increment; + address += address_increment; + + /* Add a new line with the current state machine values. */ + NEW_LINE (0); + + /* Reset the flags. */ + basic_block = 0; + prologue_end = 0; + epilogue_begin = 0; + } + else if (opcode == 0) + { + /* This an extended opcode. */ + if (unlikely (linep + 2 > lineendp)) + goto invalid_data; + + /* The length. */ + unsigned int len = *linep++; + + if (unlikely (linep + len > lineendp)) + goto invalid_data; + + /* The sub-opcode. */ + opcode = *linep++; + + switch (opcode) + { + case DW_LNE_end_sequence: + /* Add a new line with the current state machine values. + The is the end of the sequence. */ + NEW_LINE (1); + + /* Reset the registers. */ + address = 0; + file = 1; + line = 1; + column = 0; + is_stmt = default_is_stmt; + basic_block = 0; + prologue_end = 0; + epilogue_begin = 0; + break; + + case DW_LNE_set_address: + /* The value is an address. The size is defined as + apporiate for the target machine. We use the + address size field from the CU header. */ + if (cu->address_size == 4) + address = read_4ubyte_unaligned_inc (dbg, linep); + else + address = read_8ubyte_unaligned_inc (dbg, linep); + break; + + case DW_LNE_define_file: + { + char *fname = (char *) linep; + uint8_t *endp = memchr (linep, '\0', lineendp - linep); + if (endp == NULL) + goto invalid_data; + size_t fnamelen = endp - linep; + linep = endp + 1; + + unsigned int diridx; + get_uleb128 (diridx, linep); + Dwarf_Word mtime; + get_uleb128 (mtime, linep); + Dwarf_Word filelength; + get_uleb128 (filelength, linep); + + struct filelist *new_file = + (struct filelist *) alloca (sizeof (*new_file)); + if (fname[0] == '/') + new_file->info.name = fname; + else + { + new_file->info.name = + libdw_alloc (dbg, char, 1, (dirarray[diridx]->len + 1 + + fnamelen + 1)); + char *cp = new_file->info.name; + + if (dirarray[diridx]->dir != NULL) + /* This value could be NULL in case the + DW_AT_comp_dir was not present. We + cannot do much in this case. The easiest + thing is to convert the path in an + absolute path. */ + cp = stpcpy (cp, dirarray[diridx]->dir); + *cp++ = '/'; + strcpy (cp, fname); + } + + new_file->info.mtime = mtime; + new_file->info.length = filelength; + new_file->next = filelist; + filelist = new_file; + ++nfilelist; + } + break; + + default: + /* Unknown, ignore it. */ + linep += len - 1; + break; + } + } + else if (opcode <= DW_LNS_set_epilog_begin) + { + /* This is a known standard opcode. */ + switch (opcode) + { + case DW_LNS_copy: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + goto invalid_data; + + /* Add a new line with the current state machine values. */ + NEW_LINE (0); + + /* Reset the flags. */ + basic_block = 0; + /* XXX Whether the following two lines are necessary is + unclear. I guess the current v2.1 specification has + a bug in that it says clearing these two registers is + not necessary. */ + prologue_end = 0; + epilogue_begin = 0; + break; + + case DW_LNS_advance_pc: + /* Takes one uleb128 parameter which is added to the + address. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + goto invalid_data; + + get_uleb128 (u128, linep); + address += minimum_instr_len * u128; + break; + + case DW_LNS_advance_line: + /* Takes one sleb128 parameter which is added to the + line. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + goto invalid_data; + + get_sleb128 (s128, linep); + line += s128; + break; + + case DW_LNS_set_file: + /* Takes one uleb128 parameter which is stored in file. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + goto invalid_data; + + get_uleb128 (u128, linep); + file = u128; + break; + + case DW_LNS_set_column: + /* Takes one uleb128 parameter which is stored in column. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + goto invalid_data; + + get_uleb128 (u128, linep); + column = u128; + break; + + case DW_LNS_negate_stmt: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + goto invalid_data; + + is_stmt = 1 - is_stmt; + break; + + case DW_LNS_set_basic_block: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + goto invalid_data; + + basic_block = 1; + break; + + case DW_LNS_const_add_pc: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + goto invalid_data; + + address += (minimum_instr_len + * ((255 - opcode_base) / line_range)); + break; + + case DW_LNS_fixed_advance_pc: + /* Takes one 16 bit parameter which is added to the + address. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + goto invalid_data; + + address += read_2ubyte_unaligned_inc (dbg, linep); + break; + + case DW_LNS_set_prologue_end: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + goto invalid_data; + + prologue_end = 1; + break; + + case DW_LNS_set_epilog_begin: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + goto invalid_data; + + epilogue_begin = 1; + break; + } + } + else + { + /* This is a new opcode the generator but not we know about. + Read the parameters associated with it but then discard + everything. Read all the parameters for this opcode. */ + for (int n = standard_opcode_lengths[opcode]; n > 0; --n) + get_uleb128 (u128, linep); + + /* Next round, ignore this opcode. */ + continue; + } + } + + /* Put all the files in an array. */ + Dwarf_Files *files = libdw_alloc (dbg, Dwarf_Files, + sizeof (Dwarf_Files) + + nfilelist * sizeof (Dwarf_Fileinfo), + 1); + files->nfiles = nfilelist; + while (nfilelist-- > 0) + { + files->info[nfilelist] = filelist->info; + filelist = filelist->next; + } + assert (filelist == NULL); + + /* Remember the debugging descriptor. */ + files->dbg = dbg; + + /* Make the file data structure available through the CU. */ + cu->files = files; + + void *buf = libdw_alloc (dbg, Dwarf_Lines, (sizeof (Dwarf_Lines) + + (sizeof (Dwarf_Line) + * nlinelist)), 1); + + /* First use the buffer for the pointers, and sort the entries. + We'll write the pointers in the end of the buffer, and then + copy into the buffer from the beginning so the overlap works. */ + assert (sizeof (Dwarf_Line) >= sizeof (Dwarf_Line *)); + Dwarf_Line **sortlines = (buf + sizeof (Dwarf_Lines) + + ((sizeof (Dwarf_Line) + - sizeof (Dwarf_Line *)) * nlinelist)); + + /* The list is in LIFO order and usually they come in clumps with + ascending addresses. So fill from the back to probably start with + runs already in order before we sort. */ + unsigned int i = nlinelist; + while (i-- > 0) + { + sortlines[i] = &linelist->line; + linelist = linelist->next; + } + assert (linelist == NULL); + + /* Sort by ascending address. */ + qsort (sortlines, nlinelist, sizeof sortlines[0], &compare_lines); + + /* Now that they are sorted, put them in the final array. + The buffers overlap, so we've clobbered the early elements + of SORTLINES by the time we're reading the later ones. */ + cu->lines = buf; + cu->lines->nlines = nlinelist; + for (i = 0; i < nlinelist; ++i) + { + cu->lines->info[i] = *sortlines[i]; + cu->lines->info[i].files = files; + } + + /* Success. */ + res = 0; + } + else if (cu->lines != (void *) -1l) + /* We already have the information. */ + res = 0; + + if (likely (res == 0)) + { + *lines = cu->lines; + *nlines = cu->lines->nlines; + } + out: + + // XXX Eventually: unlocking here. + + return res; +} +INTDEF(dwarf_getsrclines) diff --git a/libdw/dwarf_getstring.c b/libdw/dwarf_getstring.c new file mode 100644 index 0000000..e4abe8c --- /dev/null +++ b/libdw/dwarf_getstring.c @@ -0,0 +1,51 @@ +/* Get string. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +const char * +dwarf_getstring (dbg, offset, lenp) + Dwarf *dbg; + Dwarf_Off offset; + size_t *lenp; +{ + if (dbg == NULL) + return NULL; + + if (dbg->sectiondata[IDX_debug_str] == NULL + || offset >= dbg->sectiondata[IDX_debug_str]->d_size) + { + no_string: + __libdw_seterrno (DWARF_E_NO_STRING); + return NULL; + } + + const char *result = ((const char *) dbg->sectiondata[IDX_debug_str]->d_buf + + offset); + const char *endp = memchr (result, '\0', + dbg->sectiondata[IDX_debug_str]->d_size - offset); + if (endp == NULL) + goto no_string; + + if (lenp != NULL) + *lenp = endp - result; + + return result; +} diff --git a/libdw/dwarf_hasattr.c b/libdw/dwarf_hasattr.c new file mode 100644 index 0000000..88dbee4 --- /dev/null +++ b/libdw/dwarf_hasattr.c @@ -0,0 +1,37 @@ +/* Check whether given DIE has specific attribute. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_hasattr (die, search_name) + Dwarf_Die *die; + unsigned int search_name; +{ + if (die == NULL) + return 0; + + /* Search for the attribute with the given name. */ + unsigned int code; + (void) __libdw_find_attr (die, search_name, &code, NULL); + + return code == search_name; +} +INTDEF (dwarf_hasattr) diff --git a/libdw/dwarf_hasattr_integrate.c b/libdw/dwarf_hasattr_integrate.c new file mode 100644 index 0000000..423aa2a --- /dev/null +++ b/libdw/dwarf_hasattr_integrate.c @@ -0,0 +1,42 @@ +/* Check whether DIE has specific attribute, integrating DW_AT_abstract_origin. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + +int +dwarf_hasattr_integrate (Dwarf_Die *die, unsigned int search_name) +{ + Dwarf_Die die_mem; + + do + { + if (INTUSE(dwarf_hasattr) (die, search_name)) + return 1; + + Dwarf_Attribute attr_mem; + Dwarf_Attribute *attr = INTUSE(dwarf_attr) (die, DW_AT_abstract_origin, + &attr_mem); + if (attr == NULL) + break; + + die = INTUSE(dwarf_formref_die) (attr, &die_mem); + } + while (die != NULL); + + return 0; +} diff --git a/libdw/dwarf_haschildren.c b/libdw/dwarf_haschildren.c new file mode 100644 index 0000000..05a5b52 --- /dev/null +++ b/libdw/dwarf_haschildren.c @@ -0,0 +1,49 @@ +/* Return string associated with given attribute. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" +#include + + +int +dwarf_haschildren (die) + Dwarf_Die *die; +{ + /* Find the abbreviation entry. */ + Dwarf_Abbrev *abbrevp = die->abbrev; + if (abbrevp != (Dwarf_Abbrev *) -1l) + { + const unsigned char *readp = (unsigned char *) die->addr; + + /* First we have to get the abbreviation code so that we can decode + the data in the DIE. */ + unsigned int abbrev_code; + get_uleb128 (abbrev_code, readp); + + abbrevp = __libdw_findabbrev (die->cu, abbrev_code); + die->abbrev = abbrevp ?: (Dwarf_Abbrev *) -1l; + } + if (unlikely (die->abbrev == (Dwarf_Abbrev *) -1l)) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return 0; + } + + return die->abbrev->has_children; +} +INTDEF (dwarf_haschildren) diff --git a/libdw/dwarf_hasform.c b/libdw/dwarf_hasform.c new file mode 100644 index 0000000..392b1f1 --- /dev/null +++ b/libdw/dwarf_hasform.c @@ -0,0 +1,32 @@ +/* Check whether given attribute has specific form. + Copyright (C) 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_hasform (attr, search_form) + Dwarf_Attribute *attr; + unsigned int search_form; +{ + if (attr == NULL) + return 0; + + return attr->form == search_form; +} diff --git a/libdw/dwarf_haspc.c b/libdw/dwarf_haspc.c new file mode 100644 index 0000000..7f29296 --- /dev/null +++ b/libdw/dwarf_haspc.c @@ -0,0 +1,105 @@ +/* Determine whether a DIE covers a PC address. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" +#include + + +int +dwarf_haspc (Dwarf_Die *die, Dwarf_Addr pc) +{ + if (die == NULL) + return -1; + + /* Usually there is a single contiguous range. */ + Dwarf_Addr lowpc, highpc; + if (INTUSE(dwarf_highpc) (die, &highpc) == 0 + && INTUSE(dwarf_lowpc) (die, &lowpc) == 0) + return pc >= lowpc && pc < highpc; + + /* We have to look for a noncontiguous range. */ + Dwarf_Attribute attr_mem; + Dwarf_Attribute *attr = INTUSE(dwarf_attr) (die, DW_AT_ranges, &attr_mem); + if (attr == NULL) + return -1; + + /* Must have the form data4 or data8 which act as an offset. */ + Dwarf_Word offset; + if (INTUSE(dwarf_formudata) (attr, &offset) != 0) + return -1; + + const Elf_Data *d = attr->cu->dbg->sectiondata[IDX_debug_ranges]; + if (d == NULL) + { + __libdw_seterrno (DWARF_E_NO_DEBUG_RANGES); + return -1; + } + + /* Fetch the CU's base address. */ + Dwarf_Addr base; + Dwarf_Die cudie = + { + .cu = attr->cu, + .addr = ((char *) attr->cu->dbg->sectiondata[IDX_debug_info]->d_buf + + attr->cu->start + 3 * attr->cu->offset_size - 4 + 3), + }; + if (INTUSE(dwarf_lowpc) (&cudie, &base) != 0) + return -1; + + unsigned char *readp = d->d_buf + offset; + Dwarf_Addr begin; + Dwarf_Addr end; + do + { + next: + if ((unsigned char *) d->d_buf + d->d_size - readp + < attr->cu->address_size * 2) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1; + } + + if (attr->cu->address_size == 8) + { + begin = read_8ubyte_unaligned_inc (attr->cu->dbg, readp); + end = read_8ubyte_unaligned_inc (attr->cu->dbg, readp); + } + else + { + begin = (Dwarf_Sword) read_4sbyte_unaligned_inc (attr->cu->dbg, + readp); + end = read_4ubyte_unaligned_inc (attr->cu->dbg, readp); + } + + if (begin == (Dwarf_Addr) -1l) /* Base address entry. */ + { + base = end; + goto next; + } + + if (begin == 0 && end == 0) /* End of list entry. */ + /* This is not the droid you are looking for. */ + return 0; + + /* We have an address range entry. */ + } + while (pc < base + begin || pc >= base + end); + + /* This one matches the address. */ + return 1; +} +INTDEF (dwarf_haspc) diff --git a/libdw/dwarf_highpc.c b/libdw/dwarf_highpc.c new file mode 100644 index 0000000..d842569 --- /dev/null +++ b/libdw/dwarf_highpc.c @@ -0,0 +1,34 @@ +/* Return high PC attribute of DIE. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_highpc (die, return_addr) + Dwarf_Die *die; + Dwarf_Addr *return_addr; +{ + Dwarf_Attribute attr_mem; + + return INTUSE(dwarf_formaddr) (INTUSE(dwarf_attr) (die, DW_AT_high_pc, + &attr_mem), + return_addr); +} +INTDEF(dwarf_highpc) diff --git a/libdw/dwarf_lineaddr.c b/libdw/dwarf_lineaddr.c new file mode 100644 index 0000000..ddfc01b --- /dev/null +++ b/libdw/dwarf_lineaddr.c @@ -0,0 +1,31 @@ +/* Return line address. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_lineaddr (Dwarf_Line *line, Dwarf_Addr *addrp) +{ + if (line == NULL) + return -1; + + *addrp = line->addr; + + return 0; +} diff --git a/libdw/dwarf_linebeginstatement.c b/libdw/dwarf_linebeginstatement.c new file mode 100644 index 0000000..d974d8f --- /dev/null +++ b/libdw/dwarf_linebeginstatement.c @@ -0,0 +1,31 @@ +/* Return true if record is for beginning of a statement. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_linebeginstatement (Dwarf_Line *line, bool *flagp) +{ + if (line == NULL) + return -1; + + *flagp = line->is_stmt; + + return 0; +} diff --git a/libdw/dwarf_lineblock.c b/libdw/dwarf_lineblock.c new file mode 100644 index 0000000..a6b8e0c --- /dev/null +++ b/libdw/dwarf_lineblock.c @@ -0,0 +1,31 @@ +/* Return true if record is for beginning of a basic block. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_lineblock (Dwarf_Line *line, bool *flagp) +{ + if (line == NULL) + return -1; + + *flagp = line->basic_block; + + return 0; +} diff --git a/libdw/dwarf_linecol.c b/libdw/dwarf_linecol.c new file mode 100644 index 0000000..2430d37 --- /dev/null +++ b/libdw/dwarf_linecol.c @@ -0,0 +1,31 @@ +/* Return column in line. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_linecol (Dwarf_Line *line, int *colp) +{ + if (line == NULL) + return -1; + + *colp = line->column; + + return 0; +} diff --git a/libdw/dwarf_lineendsequence.c b/libdw/dwarf_lineendsequence.c new file mode 100644 index 0000000..c49fabe --- /dev/null +++ b/libdw/dwarf_lineendsequence.c @@ -0,0 +1,31 @@ +/* Return true if record is for end of sequence. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_lineendsequence (Dwarf_Line *line, bool *flagp) +{ + if (line == NULL) + return -1; + + *flagp = line->end_sequence; + + return 0; +} diff --git a/libdw/dwarf_lineepiloguebegin.c b/libdw/dwarf_lineepiloguebegin.c new file mode 100644 index 0000000..ee4f5bb --- /dev/null +++ b/libdw/dwarf_lineepiloguebegin.c @@ -0,0 +1,31 @@ +/* Return true if record is for beginning of epilogue. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_lineepiloguebegin (Dwarf_Line *line, bool *flagp) +{ + if (line == NULL) + return -1; + + *flagp = line->epilogue_begin; + + return 0; +} diff --git a/libdw/dwarf_lineno.c b/libdw/dwarf_lineno.c new file mode 100644 index 0000000..5ad2406 --- /dev/null +++ b/libdw/dwarf_lineno.c @@ -0,0 +1,31 @@ +/* Return line number. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_lineno (Dwarf_Line *line, int *linep) +{ + if (line == NULL) + return -1; + + *linep = line->line; + + return 0; +} diff --git a/libdw/dwarf_lineprologueend.c b/libdw/dwarf_lineprologueend.c new file mode 100644 index 0000000..e869025 --- /dev/null +++ b/libdw/dwarf_lineprologueend.c @@ -0,0 +1,31 @@ +/* Return true if record is for end of prologue. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_lineprologueend (Dwarf_Line *line, bool *flagp) +{ + if (line == NULL) + return -1; + + *flagp = line->prologue_end; + + return 0; +} diff --git a/libdw/dwarf_linesrc.c b/libdw/dwarf_linesrc.c new file mode 100644 index 0000000..0aca1d6 --- /dev/null +++ b/libdw/dwarf_linesrc.c @@ -0,0 +1,41 @@ +/* Find line information for address. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +const char * +dwarf_linesrc (Dwarf_Line *line, Dwarf_Word *mtime, Dwarf_Word *length) +{ + if (line == NULL) + return NULL; + + if (line->file >= line->files->nfiles) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return NULL; + } + + if (mtime != NULL) + *mtime = line->files->info[line->file].mtime; + + if (length != NULL) + *length = line->files->info[line->file].length; + + return line->files->info[line->file].name; +} diff --git a/libdw/dwarf_lowpc.c b/libdw/dwarf_lowpc.c new file mode 100644 index 0000000..c8cec0c --- /dev/null +++ b/libdw/dwarf_lowpc.c @@ -0,0 +1,34 @@ +/* Return low PC attribute of DIE. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_lowpc (die, return_addr) + Dwarf_Die *die; + Dwarf_Addr *return_addr; +{ + Dwarf_Attribute attr_mem; + + return INTUSE(dwarf_formaddr) (INTUSE(dwarf_attr) (die, DW_AT_low_pc, + &attr_mem), + return_addr); +} +INTDEF(dwarf_lowpc) diff --git a/libdw/dwarf_macro_opcode.c b/libdw/dwarf_macro_opcode.c new file mode 100644 index 0000000..1401db2 --- /dev/null +++ b/libdw/dwarf_macro_opcode.c @@ -0,0 +1,31 @@ +/* Return macro opcode. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_macro_opcode (Dwarf_Macro *macro, unsigned int *opcodep) +{ + if (macro == NULL) + return -1; + + *opcodep = macro->opcode; + + return 0; +} diff --git a/libdw/dwarf_macro_param1.c b/libdw/dwarf_macro_param1.c new file mode 100644 index 0000000..adac761 --- /dev/null +++ b/libdw/dwarf_macro_param1.c @@ -0,0 +1,31 @@ +/* Return first macro parameter. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_macro_param1 (Dwarf_Macro *macro, Dwarf_Word *paramp) +{ + if (macro == NULL) + return -1; + + *paramp = macro->param1; + + return 0; +} diff --git a/libdw/dwarf_macro_param2.c b/libdw/dwarf_macro_param2.c new file mode 100644 index 0000000..1b49aa7 --- /dev/null +++ b/libdw/dwarf_macro_param2.c @@ -0,0 +1,34 @@ +/* Return second macro parameter. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_macro_param2 (Dwarf_Macro *macro, Dwarf_Word *paramp, const char **strp) +{ + if (macro == NULL) + return -1; + + if (paramp != NULL) + *paramp = macro->param2.u; + if (strp != NULL) + *strp = macro->param2.s; + + return 0; +} diff --git a/libdw/dwarf_nextcu.c b/libdw/dwarf_nextcu.c new file mode 100644 index 0000000..9dc7633 --- /dev/null +++ b/libdw/dwarf_nextcu.c @@ -0,0 +1,132 @@ +/* Advance to next CU header. + Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_nextcu (dwarf, off, next_off, header_sizep, abbrev_offsetp, + address_sizep, offset_sizep) + Dwarf *dwarf; + Dwarf_Off off; + Dwarf_Off *next_off; + size_t *header_sizep; + Dwarf_Off *abbrev_offsetp; + uint8_t *address_sizep; + uint8_t *offset_sizep; +{ + /* Maybe there has been an error before. */ + if (dwarf == NULL) + return -1; + + /* If we reached the end before don't do anything. */ + if (off == (Dwarf_Off) -1l + /* Make sure there is enough space in the .debug_info section + for at least the initial word. We cannot test the rest since + we don't know yet whether this is a 64-bit object or not. */ + || unlikely (off + 4 >= dwarf->sectiondata[IDX_debug_info]->d_size)) + { + *next_off = (Dwarf_Off) -1l; + return 1; + } + + /* This points into the .debug_info section to the beginning of the + CU entry. */ + char *bytes = (char *) dwarf->sectiondata[IDX_debug_info]->d_buf + off; + + /* The format of the CU header is described in dwarf2p1 7.5.1: + + 1. A 4-byte or 12-byte unsigned integer representing the length + of the .debug_info contribution for that compilation unit, not + including the length field itself. In the 32-bit DWARF format, + this is a 4-byte unsigned integer (which must be less than + 0xffffff00); in the 64-bit DWARF format, this consists of the + 4-byte value 0xffffffff followed by an 8-byte unsigned integer + that gives the actual length (see Section 7.4). + + 2. A 2-byte unsigned integer representing the version of the + DWARF information for that compilation unit. For DWARF Version + 2.1, the value in this field is 2. + + 3. A 4-byte or 8-byte unsigned offset into the .debug_abbrev + section. This offset associates the compilation unit with a + particular set of debugging information entry abbreviations. In + the 32-bit DWARF format, this is a 4-byte unsigned length; in + the 64-bit DWARF format, this is an 8-byte unsigned length (see + Section 7.4). + + 4. A 1-byte unsigned integer representing the size in bytes of + an address on the target architecture. If the system uses + segmented addressing, this value represents the size of the + offset portion of an address. */ + uint64_t length = read_4ubyte_unaligned_inc (dwarf, bytes); + size_t offset_size = 4; + if (length == 0xffffffffu) + offset_size = 8; + + /* Now we know how large the header is. Note the trick in the + computation. If the offset_size is 4 the '- 4' term undoes the + '2 *'. If offset_size is 8 this term computes the size of the + escape value plus the 8 byte offset. */ + if (unlikely (off + 2 * offset_size - 4 + sizeof (uint16_t) + + offset_size + sizeof (uint8_t) + >= dwarf->sectiondata[IDX_debug_info]->d_size)) + { + *next_off = -1; + return 1; + } + + if (length == 0xffffffffu) + /* This is a 64-bit DWARF format. */ + length = read_8ubyte_unaligned_inc (dwarf, bytes); + + /* Read the version stamp. Always a 16-bit value. + XXX Do we need the value? */ + read_2ubyte_unaligned_inc (dwarf, bytes); + + /* Get offset in .debug_abbrev. Note that the size of the entry + depends on whether this is a 32-bit or 64-bit DWARF definition. */ + uint64_t abbrev_offset; + if (offset_size == 4) + abbrev_offset = read_4ubyte_unaligned_inc (dwarf, bytes); + else + abbrev_offset = read_8ubyte_unaligned_inc (dwarf, bytes); + if (abbrev_offsetp != NULL) + *abbrev_offsetp = abbrev_offset; + + /* The address size. Always an 8-bit value. */ + uint8_t address_size = *bytes++; + if (address_sizep != NULL) + *address_sizep = address_size; + + /* Store the offset size. */ + if (offset_sizep != NULL) + *offset_sizep = offset_size; + + /* Store the header length. */ + if (header_sizep != NULL) + *header_sizep = (bytes + - ((char *) dwarf->sectiondata[IDX_debug_info]->d_buf + + off)); + + /* See above for an explanation of the trick in this formula. */ + *next_off = off + 2 * offset_size - 4 + length; + + return 0; +} +INTDEF(dwarf_nextcu) diff --git a/libdw/dwarf_offabbrev.c b/libdw/dwarf_offabbrev.c new file mode 100644 index 0000000..97370d6 --- /dev/null +++ b/libdw/dwarf_offabbrev.c @@ -0,0 +1,36 @@ +/* Get abbreviation at given offset. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +int +dwarf_offabbrev (Dwarf *dbg, Dwarf_Off offset, size_t *lengthp, + Dwarf_Abbrev *abbrevp) +{ + if (dbg == NULL) + return -1; + + Dwarf_Abbrev *abbrev = __libdw_getabbrev (dbg, NULL, offset, lengthp, + abbrevp); + + if (abbrev == NULL) + return -1; + + return abbrev == DWARF_END_ABBREV ? 1 : 0; +} diff --git a/libdw/dwarf_offdie.c b/libdw/dwarf_offdie.c new file mode 100644 index 0000000..84300e1 --- /dev/null +++ b/libdw/dwarf_offdie.c @@ -0,0 +1,55 @@ +/* Return DIE at given offset. + Copyright (C) 2002, 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +Dwarf_Die * +dwarf_offdie (dbg, offset, result) + Dwarf *dbg; + Dwarf_Off offset; + Dwarf_Die *result; +{ + if (dbg == NULL) + return NULL; + + if (offset >= dbg->sectiondata[IDX_debug_info]->d_size) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return NULL; + } + + /* Clear the entire DIE structure. This signals we have not yet + determined any of the information. */ + memset (result, '\0', sizeof (Dwarf_Die)); + + result->addr = (char *) dbg->sectiondata[IDX_debug_info]->d_buf + offset; + + /* Get the CU. */ + result->cu = __libdw_findcu (dbg, offset); + if (result->cu == NULL) + { + /* This should never happen. The input file is malformed. */ + __libdw_seterrno (DWARF_E_INVALID_DWARF); + result = NULL; + } + + return result; +} +INTDEF(dwarf_offdie) diff --git a/libdw/dwarf_onearange.c b/libdw/dwarf_onearange.c new file mode 100644 index 0000000..0c37252 --- /dev/null +++ b/libdw/dwarf_onearange.c @@ -0,0 +1,35 @@ +/* Return one of the address range entries. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +Dwarf_Arange * +dwarf_onearange (Dwarf_Aranges *aranges, size_t idx) +{ + if (aranges == NULL) + return NULL; + + if (idx >= aranges->naranges) + { + __libdw_seterrno (DWARF_E_INVALID_ARANGE_IDX); + return NULL; + } + + return &aranges->info[idx]; +} diff --git a/libdw/dwarf_onesrcline.c b/libdw/dwarf_onesrcline.c new file mode 100644 index 0000000..9234ef9 --- /dev/null +++ b/libdw/dwarf_onesrcline.c @@ -0,0 +1,35 @@ +/* Return one of the sources lines of a CU. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +Dwarf_Line * +dwarf_onesrcline (Dwarf_Lines *lines, size_t idx) +{ + if (lines == NULL) + return NULL; + + if (idx >= lines->nlines) + { + __libdw_seterrno (DWARF_E_INVALID_LINE_IDX); + return NULL; + } + + return &lines->info[idx]; +} diff --git a/libdw/dwarf_siblingof.c b/libdw/dwarf_siblingof.c new file mode 100644 index 0000000..bd965ea --- /dev/null +++ b/libdw/dwarf_siblingof.c @@ -0,0 +1,115 @@ +/* Return sibling of given DIE. + Copyright (C) 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" +#include +#include + + +int +dwarf_siblingof (die, result) + Dwarf_Die *die; + Dwarf_Die *result; +{ + /* Ignore previous errors. */ + if (die == NULL) + return -1; + + unsigned int level = 0; + + /* Copy of the current DIE. */ + Dwarf_Die this_die = *die; + /* Temporary attributes we create. */ + Dwarf_Attribute sibattr; + /* Copy of the CU in the request. */ + sibattr.cu = this_die.cu; + /* That's the address we start looking. */ + unsigned char *addr = this_die.addr; + /* End of the buffer. */ + unsigned char *endp + = ((unsigned char *) sibattr.cu->dbg->sectiondata[IDX_debug_info]->d_buf + + sibattr.cu->end); + + /* Search for the beginning of the next die on this level. We + must not return the dies for children of the given die. */ + do + { + /* Find the end of the DIE or the sibling attribute. */ + addr = __libdw_find_attr (&this_die, DW_AT_sibling, &sibattr.code, + &sibattr.form); + if (sibattr.code == DW_AT_sibling) + { + Dwarf_Off offset; + sibattr.valp = addr; + if (INTUSE(dwarf_formref) (&sibattr, &offset) != 0) + /* Something went wrong. */ + return -1; + + /* Compute the next address. */ + addr = ((unsigned char *) + sibattr.cu->dbg->sectiondata[IDX_debug_info]->d_buf + + sibattr.cu->start + offset); + } + else if (unlikely (addr == NULL) + || unlikely (this_die.abbrev == (Dwarf_Abbrev *) -1l)) + return -1; + else if (this_die.abbrev->has_children) + /* This abbreviation has children. */ + ++level; + + + while (1) + { + /* Make sure we are still in range. Some producers might skip + the trailing NUL bytes. */ + if (addr >= endp) + return 1; + + if (*addr != '\0') + break; + + if (level-- == 0) + /* No more sibling at all. */ + return 1; + + ++addr; + } + + /* Initialize the 'current DIE'. */ + this_die.addr = addr; + this_die.abbrev = NULL; + } + while (level > 0); + + /* Maybe we reached the end of the CU. */ + if (addr >= endp) + return 1; + + /* Clear the entire DIE structure. This signals we have not yet + determined any of the information. */ + memset (result, '\0', sizeof (Dwarf_Die)); + + /* We have the address. */ + result->addr = addr; + + /* Same CU as the parent. */ + result->cu = sibattr.cu; + + return 0; +} +INTDEF(dwarf_siblingof) diff --git a/libdw/dwarf_srclang.c b/libdw/dwarf_srclang.c new file mode 100644 index 0000000..3fb06a1 --- /dev/null +++ b/libdw/dwarf_srclang.c @@ -0,0 +1,33 @@ +/* Return source language attribute of DIE. + Copyright (C) 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +int +dwarf_srclang (die) + Dwarf_Die *die; +{ + Dwarf_Attribute attr_mem; + Dwarf_Word value; + + return INTUSE(dwarf_formudata) (INTUSE(dwarf_attr) (die, DW_AT_language, + &attr_mem), + &value) == 0 ? (int) value : -1; +} diff --git a/libdw/dwarf_tag.c b/libdw/dwarf_tag.c new file mode 100644 index 0000000..939b681 --- /dev/null +++ b/libdw/dwarf_tag.c @@ -0,0 +1,82 @@ +/* Return tag of given DIE. + Copyright (C) 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwP.h" + + +Dwarf_Abbrev * +internal_function_def +__libdw_findabbrev (struct Dwarf_CU *cu, unsigned int code) +{ + Dwarf_Abbrev *abb; + + /* See whether the entry is already in the hash table. */ + abb = Dwarf_Abbrev_Hash_find (&cu->abbrev_hash, code, NULL); + if (abb == NULL) + while (cu->last_abbrev_offset != (size_t) -1l) + { + size_t length; + + /* Find the next entry. It gets automatically added to the + hash table. */ + abb = __libdw_getabbrev (cu->dbg, cu, cu->last_abbrev_offset, &length, + NULL); + if (abb == NULL || abb == DWARF_END_ABBREV) + { + /* Make sure we do not try to search for it again. */ + cu->last_abbrev_offset = (size_t) -1l; + abb = (void *) -1l; + break; + } + + cu->last_abbrev_offset += length; + + /* Is this the code we are looking for? */ + if (abb->code == code) + break; + } + + return abb; +} + + +int +dwarf_tag (die) + Dwarf_Die *die; +{ + /* Do we already know the abbreviation? */ + if (die->abbrev == NULL) + { + /* Get the abbreviation code. */ + unsigned int u128; + const unsigned char *addr = die->addr; + get_uleb128 (u128, addr); + + /* Find the abbreviation. */ + die->abbrev = __libdw_findabbrev (die->cu, u128); + } + + if (die->abbrev == (Dwarf_Abbrev *) -1l) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return DW_TAG_invalid; + } + + return die->abbrev->tag; +} +INTDEF(dwarf_tag) diff --git a/libdw/dwarf_whatattr.c b/libdw/dwarf_whatattr.c new file mode 100644 index 0000000..ad5d868 --- /dev/null +++ b/libdw/dwarf_whatattr.c @@ -0,0 +1,28 @@ +/* Return attribute code of given attribute. + Copyright (C) 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +unsigned int +dwarf_whatattr (attr) + Dwarf_Attribute *attr; +{ + return attr == NULL ? 0 : attr->code; +} diff --git a/libdw/dwarf_whatform.c b/libdw/dwarf_whatform.c new file mode 100644 index 0000000..99da1c9 --- /dev/null +++ b/libdw/dwarf_whatform.c @@ -0,0 +1,28 @@ +/* Return form code of given attribute. + Copyright (C) 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libdwP.h" + + +unsigned int +dwarf_whatform (attr) + Dwarf_Attribute *attr; +{ + return attr == NULL ? 0 : attr->form; +} diff --git a/libdw/libdw.h b/libdw/libdw.h new file mode 100644 index 0000000..786be22 --- /dev/null +++ b/libdw/libdw.h @@ -0,0 +1,564 @@ +/* Interfaces for libdw. + Copyright (C) 2002, 2004, 2005 Red Hat, Inc. + Contributed by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBDW_H +#define _LIBDW_H 1 + +#include +#include +#include + + +#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) +# define __nonnull_attribute__(...) __attribute__ ((__nonnull__ (__VA_ARGS__))) +#else +# define __nonnull_attribute__(args...) +#endif + + +/* Mode for the session. */ +typedef enum + { + DWARF_C_READ, /* Read .. */ + DWARF_C_RDWR, /* Read and write .. */ + DWARF_C_WRITE, /* Write .. */ + } +Dwarf_Cmd; + + +/* Callback results. */ +enum +{ + DWARF_CB_OK = 0, + DWARF_CB_ABORT +}; + + +/* Error values. */ +enum + { + DW_TAG_invalid = 0 +#define DW_TAG_invalid DW_TAG_invalid + }; + + +/* Type for offset in DWARF file. */ +typedef GElf_Off Dwarf_Off; + +/* Type for address in DWARF file. */ +typedef GElf_Addr Dwarf_Addr; + +/* Integer types. Big enough to hold any numeric value. */ +typedef GElf_Xword Dwarf_Word; +typedef GElf_Sxword Dwarf_Sword; +/* For the times we know we do not need that much. */ +typedef GElf_Half Dwarf_Half; + + +/* DWARF abbreviation record. */ +typedef struct Dwarf_Abbrev Dwarf_Abbrev; + +/* Returned to show the last DIE has be returned. */ +#define DWARF_END_ABBREV ((Dwarf_Abbrev *) -1l) + +/* Source code line information for CU. */ +typedef struct Dwarf_Lines_s Dwarf_Lines; + +/* One source code line information. */ +typedef struct Dwarf_Line_s Dwarf_Line; + +/* Source file information. */ +typedef struct Dwarf_Files_s Dwarf_Files; + +/* One address range record. */ +typedef struct Dwarf_Arange_s Dwarf_Arange; + +/* Address ranges of a file. */ +typedef struct Dwarf_Aranges_s Dwarf_Aranges; + +/* CU representation. */ +struct Dwarf_CU; + +/* Function information. */ +typedef struct Dwarf_Func_s Dwarf_Func; + +/* Macro information. */ +typedef struct Dwarf_Macro_s Dwarf_Macro; + +/* Attribute representation. */ +typedef struct +{ + unsigned int code; + unsigned int form; + unsigned char *valp; + struct Dwarf_CU *cu; +} Dwarf_Attribute; + + +/* Data block representation. */ +typedef struct +{ + Dwarf_Word length; + unsigned char *data; +} Dwarf_Block; + + +/* DIE information. */ +typedef struct +{ + /* The offset can be computed from the address. */ + void *addr; + struct Dwarf_CU *cu; + Dwarf_Abbrev *abbrev; + // XXX We'll see what other information will be needed. + long int padding__; +} Dwarf_Die; + +/* Returned to show the last DIE has be returned. */ +#define DWARF_END_DIE ((Dwarf_Die *) -1l) + + +/* Global symbol information. */ +typedef struct +{ + Dwarf_Off cu_offset; + Dwarf_Off die_offset; + const char *name; +} Dwarf_Global; + + +// XXX It remains to be seen whether the next two need to be exported. +/* Location record. */ +typedef struct +{ + uint8_t atom; /* Operation */ + Dwarf_Word number; /* Operand */ + Dwarf_Word number2; /* Possible second operand */ + Dwarf_Word offset; /* Offset in location expression */ +} Dwarf_Loc; + + +/* Handle for debug sessions. */ +typedef struct Dwarf Dwarf; + + +/* Out-Of-Memory handler. */ +#if __GNUC__ < 4 +typedef void (*Dwarf_OOM) (void); +#else +typedef void (*__attribute__ ((noreturn)) Dwarf_OOM) (void); +#endif + + +/* Create a handle for a new debug session. */ +extern Dwarf *dwarf_begin (int fildes, Dwarf_Cmd cmd); + +/* Create a handle for a new debug session for an ELF file. */ +extern Dwarf *dwarf_begin_elf (Elf *elf, Dwarf_Cmd cmd, Elf_Scn *scngrp); + +/* Retrieve ELF descriptor used for DWARF access. */ +extern Elf *dwarf_getelf (Dwarf *dwarf); + +/* Release debugging handling context. */ +extern int dwarf_end (Dwarf *dwarf); + + +/* Get the data block for the .debug_info section. */ +extern Elf_Data *dwarf_getscn_info (Dwarf *dwarf); + +/* Read the header for the DWARF CU header. */ +extern int dwarf_nextcu (Dwarf *dwarf, Dwarf_Off off, Dwarf_Off *next_off, + size_t *header_sizep, Dwarf_Off *abbrev_offsetp, + uint8_t *address_sizep, uint8_t *offset_sizep) + __nonnull_attribute__ (3); + + +/* Return DIE at given offset. */ +extern Dwarf_Die *dwarf_offdie (Dwarf *dbg, Dwarf_Off offset, + Dwarf_Die *result) __nonnull_attribute__ (3); + +/* Return offset of DIE. */ +extern Dwarf_Off dwarf_dieoffset (Dwarf_Die *die); + +/* Return offset of DIE in CU. */ +extern Dwarf_Off dwarf_cuoffset (Dwarf_Die *die); + +/* Return CU DIE containing given address. */ +extern Dwarf_Die *dwarf_addrdie (Dwarf *dbg, Dwarf_Addr addr, + Dwarf_Die *result) __nonnull_attribute__ (3); + +/* Return child of current DIE. */ +extern int dwarf_child (Dwarf_Die *die, Dwarf_Die *result) + __nonnull_attribute__ (2); + +/* Return sibling of given DIE. */ +extern int dwarf_siblingof (Dwarf_Die *die, Dwarf_Die *result) + __nonnull_attribute__ (2); + +/* Check whether the DIE has children. */ +extern int dwarf_haschildren (Dwarf_Die *die); + +/* Get attributes of the DIE. */ +extern ptrdiff_t dwarf_getattrs (Dwarf_Die *die, + int (*callback) (Dwarf_Attribute *, void *), + void *arg, ptrdiff_t offset); + +/* Return tag of given DIE. */ +extern int dwarf_tag (Dwarf_Die *die); + + +/* Return specific attribute of DIE. */ +extern Dwarf_Attribute *dwarf_attr (Dwarf_Die *die, unsigned int search_name, + Dwarf_Attribute *result) + __nonnull_attribute__ (3); + +/* Check whether given DIE has specific attribute. */ +extern int dwarf_hasattr (Dwarf_Die *die, unsigned int search_name); + +/* These are the same as dwarf_attr and dwarf_hasattr, respectively, + but they resolve an indirect attribute through DW_AT_abstract_origin. */ +extern Dwarf_Attribute *dwarf_attr_integrate (Dwarf_Die *die, + unsigned int search_name, + Dwarf_Attribute *result) + __nonnull_attribute__ (3); +extern int dwarf_hasattr_integrate (Dwarf_Die *die, unsigned int search_name); + + + + +/* Check whether given attribute has specific form. */ +extern int dwarf_hasform (Dwarf_Attribute *attr, unsigned int search_form); + +/* Return attribute code of given attribute. */ +extern unsigned int dwarf_whatattr (Dwarf_Attribute *attr); + +/* Return form code of given attribute. */ +extern unsigned int dwarf_whatform (Dwarf_Attribute *attr); + + +/* Return string associated with given attribute. */ +extern const char *dwarf_formstring (Dwarf_Attribute *attrp); + +/* Return unsigned constant represented by attribute. */ +extern int dwarf_formudata (Dwarf_Attribute *attr, Dwarf_Word *return_uval) + __nonnull_attribute__ (2); + +/* Return signed constant represented by attribute. */ +extern int dwarf_formsdata (Dwarf_Attribute *attr, Dwarf_Sword *return_uval) + __nonnull_attribute__ (2); + +/* Return address represented by attribute. */ +extern int dwarf_formaddr (Dwarf_Attribute *attr, Dwarf_Addr *return_addr) + __nonnull_attribute__ (2); + +/* Return reference offset represented by attribute. */ +extern int dwarf_formref (Dwarf_Attribute *attr, Dwarf_Off *return_offset) + __nonnull_attribute__ (2); + +/* Look up the DIE in a reference-form attribute. */ +extern Dwarf_Die *dwarf_formref_die (Dwarf_Attribute *attr, Dwarf_Die *die_mem) + __nonnull_attribute__ (2); + +/* Return block represented by attribute. */ +extern int dwarf_formblock (Dwarf_Attribute *attr, Dwarf_Block *return_block) + __nonnull_attribute__ (2); + +/* Return flag represented by attribute. */ +extern int dwarf_formflag (Dwarf_Attribute *attr, bool *return_bool) + __nonnull_attribute__ (2); + + +/* Simplified attribute value access functions. */ + +/* Return string in name attribute of DIE. */ +extern const char *dwarf_diename (Dwarf_Die *die); + +/* Return high PC attribute of DIE. */ +extern int dwarf_highpc (Dwarf_Die *die, Dwarf_Addr *return_addr) + __nonnull_attribute__ (2); + +/* Return low PC attribute of DIE. */ +extern int dwarf_lowpc (Dwarf_Die *die, Dwarf_Addr *return_addr) + __nonnull_attribute__ (2); + +/* Return 1 if DIE's lowpc/highpc or ranges attributes match the PC address, + 0 if not, or -1 for errors. */ +extern int dwarf_haspc (Dwarf_Die *die, Dwarf_Addr pc); + +/* Return byte size attribute of DIE. */ +extern int dwarf_bytesize (Dwarf_Die *die); + +/* Return bit size attribute of DIE. */ +extern int dwarf_bitsize (Dwarf_Die *die); + +/* Return bit offset attribute of DIE. */ +extern int dwarf_bitoffset (Dwarf_Die *die); + +/* Return array order attribute of DIE. */ +extern int dwarf_arrayorder (Dwarf_Die *die); + +/* Return source language attribute of DIE. */ +extern int dwarf_srclang (Dwarf_Die *die); + + +/* Get abbreviation at given offset for given DIE. */ +extern Dwarf_Abbrev *dwarf_getabbrev (Dwarf_Die *die, Dwarf_Off offset, + size_t *lengthp); + +/* Get abbreviation at given offset in .debug_abbrev section. */ +extern int dwarf_offabbrev (Dwarf *dbg, Dwarf_Off offset, size_t *lengthp, + Dwarf_Abbrev *abbrevp) + __nonnull_attribute__ (4); + +/* Get abbreviation code. */ +extern unsigned int dwarf_getabbrevcode (Dwarf_Abbrev *abbrev); + +/* Get abbreviation tag. */ +extern unsigned int dwarf_getabbrevtag (Dwarf_Abbrev *abbrev); + +/* Return true if abbreviation is children flag set. */ +extern int dwarf_abbrevhaschildren (Dwarf_Abbrev *abbrev); + +/* Get number of attributes of abbreviation. */ +extern int dwarf_getattrcnt (Dwarf_Abbrev *abbrev, size_t *attrcntp) + __nonnull_attribute__ (2); + +/* Get specific attribute of abbreviation. */ +extern int dwarf_getabbrevattr (Dwarf_Abbrev *abbrev, size_t idx, + unsigned int *namep, unsigned int *formp, + Dwarf_Off *offset); + + +/* Get string from-debug_str section. */ +extern const char *dwarf_getstring (Dwarf *dbg, Dwarf_Off offset, + size_t *lenp); + + +/* Get public symbol information. */ +extern ptrdiff_t dwarf_getpubnames (Dwarf *dbg, + int (*callback) (Dwarf *, Dwarf_Global *, + void *), + void *arg, ptrdiff_t offset) + __nonnull_attribute__ (2); + + +/* Get source file information for CU. */ +extern int dwarf_getsrclines (Dwarf_Die *cudie, Dwarf_Lines **lines, + size_t *nlines) __nonnull_attribute__ (2, 3); + +/* Return one of the source lines of the CU. */ +extern Dwarf_Line *dwarf_onesrcline (Dwarf_Lines *lines, size_t idx); + +/* Get the file source files used in the CU. */ +extern int dwarf_getsrcfiles (Dwarf_Die *cudie, Dwarf_Files **files, + size_t *nfiles) + __nonnull_attribute__ (2); + + +/* Get source for address in CU. */ +extern Dwarf_Line *dwarf_getsrc_die (Dwarf_Die *cudie, Dwarf_Addr addr); + +/* Get source for file and line number. */ +extern int dwarf_getsrc_file (Dwarf *dbg, const char *fname, int line, int col, + Dwarf_Line ***srcsp, size_t *nsrcs) + __nonnull_attribute__ (2, 5, 6); + + +/* Return line address. */ +extern int dwarf_lineaddr (Dwarf_Line *line, Dwarf_Addr *addrp); + +/* Return line number. */ +extern int dwarf_lineno (Dwarf_Line *line, int *linep) + __nonnull_attribute__ (2); + +/* Return column in line. */ +extern int dwarf_linecol (Dwarf_Line *line, int *colp) + __nonnull_attribute__ (2); + +/* Return true if record is for beginning of a statement. */ +extern int dwarf_linebeginstatement (Dwarf_Line *line, bool *flagp) + __nonnull_attribute__ (2); + +/* Return true if record is for end of sequence. */ +extern int dwarf_lineendsequence (Dwarf_Line *line, bool *flagp) + __nonnull_attribute__ (2); + +/* Return true if record is for beginning of a basic block. */ +extern int dwarf_lineblock (Dwarf_Line *line, bool *flagp) + __nonnull_attribute__ (2); + +/* Return true if record is for end of prologue. */ +extern int dwarf_lineprologueend (Dwarf_Line *line, bool *flagp) + __nonnull_attribute__ (2); + +/* Return true if record is for beginning of epilogue. */ +extern int dwarf_lineepiloguebegin (Dwarf_Line *line, bool *flagp) + __nonnull_attribute__ (2); + + +/* Find line information for address. */ +extern const char *dwarf_linesrc (Dwarf_Line *line, + Dwarf_Word *mtime, Dwarf_Word *length); + +/* Return file information. */ +extern const char *dwarf_filesrc (Dwarf_Files *file, size_t idx, + Dwarf_Word *mtime, Dwarf_Word *length); + + +/* Return location expression list. */ +extern int dwarf_getloclist (Dwarf_Attribute *attr, Dwarf_Loc **llbuf, + size_t *listlen) __nonnull_attribute__ (2, 3); + +/* Return location expression lists. If the attribute uses a location + list, ADDRESS selects the relevant location expressions from the list. + There can be multiple matches, resulting in multiple expressions to + return. LLBUFS and LISTLENS are parallel arrays of NLOCS slots to fill + in. Returns the number of locations filled in, or -1 for errors. If + LLBUFS is a null pointer, stores nothing and returns the total number of + locations. A return value of zero means that the location list + indicated no value is accessible. */ +extern int dwarf_addrloclists (Dwarf_Attribute *attr, Dwarf_Addr address, + Dwarf_Loc **llbufs, size_t *listlens, + size_t nlocs); + + +/* Return scope DIEs containing PC address. + Sets *SCOPES to a malloc'd array of Dwarf_Die structures, + and returns the number of elements in the array. + (*SCOPES)[0] is the DIE for the innermost scope containing PC, + (*SCOPES)[1] is the DIE for the scope containing that scope, and so on. + Returns -1 for errors or 0 if no scopes match PC. */ +extern int dwarf_getscopes (Dwarf_Die *cudie, Dwarf_Addr pc, + Dwarf_Die **scopes); + +/* Search SCOPES[0..NSCOPES-1] for a variable called NAME. + Ignore the first SKIP_SHADOWS scopes that match the name. + If MATCH_FILE is not null, accept only declaration in that source file; + if MATCH_LINENO or MATCH_LINECOL are also nonzero, accept only declaration + at that line and column. + + If successful, fill in *RESULT with the DIE of the variable found, + and return N where SCOPES[N] is the scope defining the variable. + Return -1 for errors or -2 for no matching variable found. */ +extern int dwarf_getscopevar (Dwarf_Die *scopes, int nscopes, + const char *name, int skip_shadows, + const char *match_file, + int match_lineno, int match_linecol, + Dwarf_Die *result); + + + +/* Return list address ranges. */ +extern int dwarf_getaranges (Dwarf *dbg, Dwarf_Aranges **aranges, + size_t *naranges) + __nonnull_attribute__ (2); + +/* Return one of the address range entries. */ +extern Dwarf_Arange *dwarf_onearange (Dwarf_Aranges *aranges, size_t idx); + +/* Return information in address range record. */ +extern int dwarf_getarangeinfo (Dwarf_Arange *arange, Dwarf_Addr *addrp, + Dwarf_Word *lengthp, Dwarf_Off *offsetp); + +/* Get address range which includes given address. */ +extern Dwarf_Arange *dwarf_getarange_addr (Dwarf_Aranges *aranges, + Dwarf_Addr addr); + + + +/* Get functions in CUDIE. */ +extern ptrdiff_t dwarf_getfuncs (Dwarf_Die *cudie, + int (*callback) (Dwarf_Func *, void *), + void *arg, ptrdiff_t offset); + +/* Return name of function. */ +extern const char *dwarf_func_name (Dwarf_Func *func); + +/* Return start address of function. */ +extern int dwarf_func_lowpc (Dwarf_Func *func, Dwarf_Addr *return_addr) + __nonnull_attribute__ (2); + +/* Return end address of function. */ +extern int dwarf_func_highpc (Dwarf_Func *func, Dwarf_Addr *return_addr) + __nonnull_attribute__ (2); + +/* Return entry point address of function. */ +extern int dwarf_func_entrypc (Dwarf_Func *func, Dwarf_Addr *return_addr) + __nonnull_attribute__ (2); + +/* Return file name containing definition of the given function. */ +extern const char *dwarf_func_file (Dwarf_Func *func); + +/* Get line number of beginning of given function. */ +extern int dwarf_func_line (Dwarf_Func *func, int *linep) + __nonnull_attribute__ (2); + +/* Get column number of beginning of given function. */ +extern int dwarf_func_col (Dwarf_Func *func, int *colp) + __nonnull_attribute__ (2); + + +/* Call callback function for each of the macro information entry for + the CU. */ +extern ptrdiff_t dwarf_getmacros (Dwarf_Die *cudie, + int (*callback) (Dwarf_Macro *, void *), + void *arg, ptrdiff_t offset) + __nonnull_attribute__ (2); + +/* Return macro opcode. */ +extern int dwarf_macro_opcode (Dwarf_Macro *macro, unsigned int *opcodep) + __nonnull_attribute__ (2); + +/* Return first macro parameter. */ +extern int dwarf_macro_param1 (Dwarf_Macro *macro, Dwarf_Word *paramp) + __nonnull_attribute__ (2); + +/* Return second macro parameter. */ +extern int dwarf_macro_param2 (Dwarf_Macro *macro, Dwarf_Word *paramp, + const char **strp); + + +/* Return error code of last failing function call. This value is kept + separately for each thread. */ +extern int dwarf_errno (void); + +/* Return error string for ERROR. If ERROR is zero, return error string + for most recent error or NULL is none occurred. If ERROR is -1 the + behaviour is similar to the last case except that not NULL but a legal + string is returned. */ +extern const char *dwarf_errmsg (int err); + + +/* Register new Out-Of-Memory handler. The old handler is returned. */ +extern Dwarf_OOM dwarf_new_oom_handler (Dwarf *dbg, Dwarf_OOM handler); + + +/* Inline optimizations. */ +#ifdef __OPTIMIZE__ +/* Return attribute code of given attribute. */ +extern inline unsigned int +dwarf_whatattr (Dwarf_Attribute *attr) +{ + return attr == NULL ? 0 : attr->code; +} + +/* Return attribute code of given attribute. */ +extern inline unsigned int +dwarf_whatform (Dwarf_Attribute *attr) +{ + return attr == NULL ? 0 : attr->form; +} +#endif /* Optimize. */ + +#endif /* libdw.h */ diff --git a/libdw/libdw.map b/libdw/libdw.map new file mode 100644 index 0000000..ed3c989 --- /dev/null +++ b/libdw/libdw.map @@ -0,0 +1,92 @@ +ELFUTILS_1.0 { + global: + dwarf_abbrevhaschildren; + dwarf_addrdie; + dwarf_addrloclists; + dwarf_attr; + dwarf_attr_integrate; + dwarf_arrayorder; + dwarf_begin; + dwarf_begin_elf; + dwarf_bitoffset; + dwarf_bitsize; + dwarf_bytesize; + dwarf_child; + dwarf_cuoffset; + dwarf_diename; + dwarf_dieoffset; + dwarf_end; + dwarf_errmsg; + dwarf_errno; + dwarf_filesrc; + dwarf_formaddr; + dwarf_formblock; + dwarf_formflag; + dwarf_formref; + dwarf_formref_die; + dwarf_formsdata; + dwarf_formstring; + dwarf_formudata; + dwarf_func_col; + dwarf_func_entrypc; + dwarf_func_file; + dwarf_func_highpc; + dwarf_func_line; + dwarf_func_lowpc; + dwarf_func_name; + dwarf_getabbrev; + dwarf_getabbrevattr; + dwarf_getabbrevcode; + dwarf_getabbrevtag; + dwarf_getarange_addr; + dwarf_getarangeinfo; + dwarf_getaranges; + dwarf_getattrcnt; + dwarf_getattrs; + dwarf_getelf; + dwarf_getfuncs; + dwarf_getloclist; + dwarf_getmacros; + dwarf_getpubnames; + dwarf_getscopes; + dwarf_getscopevar; + dwarf_getscn_info; + dwarf_getsrc_die; + dwarf_getsrc_file; + dwarf_getsrcfiles; + dwarf_getsrclines; + dwarf_getstring; + dwarf_hasattr; + dwarf_hasattr_integrate; + dwarf_haspc; + dwarf_haschildren; + dwarf_hasform; + dwarf_highpc; + dwarf_lineaddr; + dwarf_linebeginstatement; + dwarf_lineblock; + dwarf_linecol; + dwarf_lineendsequence; + dwarf_lineepiloguebegin; + dwarf_lineno; + dwarf_lineprologueend; + dwarf_linesrc; + dwarf_lowpc; + dwarf_macro_opcode; + dwarf_macro_param1; + dwarf_macro_param2; + dwarf_offabbrev; + dwarf_offdie; + dwarf_onearange; + dwarf_onesrcline; + dwarf_nextcu; + dwarf_new_oom_handler; + dwarf_siblingof; + dwarf_srclang; + dwarf_tag; + dwarf_whatattr; + dwarf_whatform; + + local: + *; +}; diff --git a/libdw/libdwP.h b/libdw/libdwP.h new file mode 100644 index 0000000..05e02aa --- /dev/null +++ b/libdw/libdwP.h @@ -0,0 +1,378 @@ +/* Internal definitions for libdwarf. + Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBDWP_H +#define _LIBDWP_H 1 + +#include +#include + +#include + + +/* gettext helper macros. */ +#define _(Str) dgettext ("elfutils", Str) + + +/* Version of the DWARF specification we support. */ +#define DWARF_VERSION 2 + +/* Version of the CIE format. */ +#define CIE_VERSION 1 + + +/* Known location lists. */ +struct loc_s +{ + void *addr; + Dwarf_Loc *loc; + size_t nloc; +}; + +/* Valid indeces for the section data. */ +enum + { + IDX_debug_info = 0, + IDX_debug_abbrev, + IDX_debug_aranges, + IDX_debug_line, + IDX_debug_frame, + IDX_eh_frame, + IDX_debug_loc, + IDX_debug_pubnames, + IDX_debug_str, + IDX_debug_funcnames, + IDX_debug_typenames, + IDX_debug_varnames, + IDX_debug_weaknames, + IDX_debug_macinfo, + IDX_debug_ranges, + IDX_last + }; + + +/* Error values. */ +enum +{ + DWARF_E_NOERROR = 0, + DWARF_E_UNKNOWN_ERROR, + DWARF_E_INVALID_ACCESS, + DWARF_E_NO_REGFILE, + DWARF_E_IO_ERROR, + DWARF_E_INVALID_ELF, + DWARF_E_NO_DWARF, + DWARF_E_NOELF, + DWARF_E_GETEHDR_ERROR, + DWARF_E_NOMEM, + DWARF_E_UNIMPL, + DWARF_E_INVALID_CMD, + DWARF_E_INVALID_VERSION, + DWARF_E_INVALID_FILE, + DWARF_E_NO_ENTRY, + DWARF_E_INVALID_DWARF, + DWARF_E_NO_STRING, + DWARF_E_NO_ADDR, + DWARF_E_NO_CONSTANT, + DWARF_E_NO_REFERENCE, + DWARF_E_INVALID_REFERENCE, + DWARF_E_NO_DEBUG_LINE, + DWARF_E_INVALID_DEBUG_LINE, + DWARF_E_TOO_BIG, + DWARF_E_VERSION, + DWARF_E_INVALID_DIR_IDX, + DWARF_E_ADDR_OUTOFRANGE, + DWARF_E_NO_LOCLIST, + DWARF_E_NO_BLOCK, + DWARF_E_INVALID_LINE_IDX, + DWARF_E_INVALID_ARANGE_IDX, + DWARF_E_NO_MATCH, + DWARF_E_NO_FLAG, + DWARF_E_INVALID_OFFSET, + DWARF_E_NO_DEBUG_RANGES, +}; + + +/* This is the structure representing the debugging state. */ +struct Dwarf +{ + /* The underlying ELF file. */ + Elf *elf; + + /* The section data. */ + Elf_Data *sectiondata[IDX_last]; + + /* True if the file has a byte order different from the host. */ + bool other_byte_order; + + /* If true, we allocated the ELF descriptor ourselves. */ + bool free_elf; + + /* Information for traversing the .debug_pubnames section. This is + an array and separately allocated with malloc. */ + struct pubnames_s + { + Dwarf_Off cu_offset; + Dwarf_Off set_start; + unsigned int cu_header_size; + int address_len; + } *pubnames_sets; + size_t pubnames_nsets; + + /* Search tree for the CUs. */ + void *cu_tree; + Dwarf_Off next_cu_offset; + + /* Address ranges. */ + Dwarf_Aranges *aranges; + + /* Internal memory handling. This is basically a simplified + reimplementation of obstacks. Unfortunately the standard obstack + implementation is not usable in libraries. */ + struct libdw_memblock + { + size_t size; + size_t remaining; + struct libdw_memblock *prev; + char mem[0]; + } *mem_tail; + + /* Default size of allocated memory blocks. */ + size_t mem_default_size; + + /* Registered OOM handler. */ + Dwarf_OOM oom_handler; +}; + + +/* Abbreviation representation. */ +struct Dwarf_Abbrev +{ + unsigned int code; + unsigned int tag; + int has_children; + unsigned int attrcnt; + unsigned char *attrp; + Dwarf_Off offset; +}; + +#include "dwarf_abbrev_hash.h" + + +/* Files in line information records. */ +struct Dwarf_Files_s + { + Dwarf *dbg; + unsigned int nfiles; + struct Dwarf_Fileinfo_s + { + char *name; + Dwarf_Word mtime; + Dwarf_Word length; + } info[0]; + }; +typedef struct Dwarf_Fileinfo_s Dwarf_Fileinfo; + + +/* Representation of a row in the line table. */ +struct Dwarf_Lines_s + { + size_t nlines; + + struct Dwarf_Line_s + { + Dwarf_Addr addr; + unsigned int file; + int line; + unsigned short int column; + unsigned int is_stmt:1; + unsigned int basic_block:1; + unsigned int end_sequence:1; + unsigned int prologue_end:1; + unsigned int epilogue_begin:1; + + Dwarf_Files *files; + } info[0]; + }; + + +/* Representation of address ranges. */ +struct Dwarf_Aranges_s +{ + Dwarf *dbg; + size_t naranges; + + struct Dwarf_Arange_s + { + Dwarf_Addr addr; + Dwarf_Word length; + Dwarf_Off offset; + } info[0]; +}; + + +/* CU representation. */ +struct Dwarf_CU +{ + Dwarf *dbg; + Dwarf_Off start; + Dwarf_Off end; + uint8_t address_size; + uint8_t offset_size; + + /* Hash table for the abbreviations. */ + Dwarf_Abbrev_Hash abbrev_hash; + /* Offset of the first abbreviation. */ + size_t orig_abbrev_offset; + /* Offset past last read abbreviation. */ + size_t last_abbrev_offset; + + /* The srcline information. */ + Dwarf_Lines *lines; + + /* The source file information. */ + Dwarf_Files *files; + + /* Known location lists. */ + void *locs; +}; + + +/* Function information. */ +struct Dwarf_Func_s +{ + // XXX If we want to cache functions, we need to change this struct. + Dwarf_Die *die; + Dwarf_Die *cudie; +}; + + +/* Macro information. */ +struct Dwarf_Macro_s +{ + unsigned int opcode; + Dwarf_Word param1; + union + { + Dwarf_Word u; + const char *s; + } param2; +}; + + +/* We have to include the file at this point because the inline + functions access internals of the Dwarf structure. */ +#include "memory-access.h" + + +/* Set error value. */ +extern void __libdw_seterrno (int value) internal_function; + + +/* Memory handling, the easy parts. This macro does not do any locking. */ +#define libdw_alloc(dbg, type, tsize, cnt) \ + ({ struct libdw_memblock *_tail = (dbg)->mem_tail; \ + size_t _required = (tsize) * (cnt); \ + type *_result = (type *) (_tail->mem + (_tail->size - _tail->remaining));\ + size_t _padding = ((__alignof (type) \ + - ((uintptr_t) _result & (__alignof (type) - 1))) \ + & (__alignof (type) - 1)); \ + if (unlikely (_tail->remaining < _required + _padding)) \ + { \ + _result = (type *) __libdw_allocate (dbg, _required); \ + _tail = (dbg)->mem_tail; \ + } \ + else \ + { \ + _required += _padding; \ + _result = (type *) ((char *) _result + _padding); \ + } \ + _tail->remaining -= _required; \ + _result; }) + +#define libdw_typed_alloc(dbg, type) \ + libdw_alloc (dbg, type, sizeof (type), 1) + +/* Callback to allocate more. */ +extern void *__libdw_allocate (Dwarf *dbg, size_t minsize) + __attribute__ ((__malloc__)) __nonnull_attribute__ (1); + +/* Default OOM handler. */ +extern void __libdw_oom (void) __attribute ((noreturn, visibility ("hidden"))); + +/* Find CU for given offset. */ +extern struct Dwarf_CU *__libdw_findcu (Dwarf *dbg, Dwarf_Off offset) + __nonnull_attribute__ (1) internal_function; + +/* Return tag of given DIE. */ +extern Dwarf_Abbrev *__libdw_findabbrev (struct Dwarf_CU *cu, + unsigned int code) + __nonnull_attribute__ (1) internal_function; + +/* Get abbreviation at given offset. */ +extern Dwarf_Abbrev *__libdw_getabbrev (Dwarf *dbg, struct Dwarf_CU *cu, + Dwarf_Off offset, size_t *lengthp, + Dwarf_Abbrev *result) + __nonnull_attribute__ (1) internal_function; + +/* Helper functions for form handling. */ +extern size_t __libdw_form_val_len (Dwarf *dbg, struct Dwarf_CU *cu, + unsigned int form, + const unsigned char *valp) + __nonnull_attribute__ (1, 2, 4) internal_function; + +/* Helper function to locate attribute. */ +extern unsigned char *__libdw_find_attr (Dwarf_Die *die, + unsigned int search_name, + unsigned int *codep, + unsigned int *formp) + __nonnull_attribute__ (1) internal_function; + +/* Helper function to access integer attribute. */ +extern int __libdw_func_intval (Dwarf_Func *func, int *linep, int attval) + __nonnull_attribute__ (1, 2) internal_function; + +/* Return error code of last failing function call. This value is kept + separately for each thread. */ +extern int __dwarf_errno_internal (void); + + +/* Aliases to avoid PLTs. */ +INTDECL (dwarf_attr) +INTDECL (dwarf_attr_integrate) +INTDECL (dwarf_begin_elf) +INTDECL (dwarf_child) +INTDECL (dwarf_dieoffset) +INTDECL (dwarf_formaddr) +INTDECL (dwarf_formblock) +INTDECL (dwarf_formref) +INTDECL (dwarf_formref_die) +INTDECL (dwarf_formsdata) +INTDECL (dwarf_formstring) +INTDECL (dwarf_formudata) +INTDECL (dwarf_getarange_addr) +INTDECL (dwarf_getarangeinfo) +INTDECL (dwarf_getaranges) +INTDECL (dwarf_getsrcfiles) +INTDECL (dwarf_getsrclines) +INTDECL (dwarf_hasattr) +INTDECL (dwarf_haschildren) +INTDECL (dwarf_haspc) +INTDECL (dwarf_highpc) +INTDECL (dwarf_lowpc) +INTDECL (dwarf_nextcu) +INTDECL (dwarf_offdie) +INTDECL (dwarf_siblingof) +INTDECL (dwarf_tag) + +#endif /* libdwP.h */ diff --git a/libdw/libdw_alloc.c b/libdw/libdw_alloc.c new file mode 100644 index 0000000..1c53d36 --- /dev/null +++ b/libdw/libdw_alloc.c @@ -0,0 +1,59 @@ +/* Memory handling for libdw. + Copyright (C) 2003, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include "libdwP.h" + + +void * +__libdw_allocate (Dwarf *dbg, size_t minsize) +{ + size_t size = MAX (dbg->mem_default_size, + 2 * minsize + offsetof (struct libdw_memblock, mem)); + struct libdw_memblock *newp = malloc (size); + if (newp == NULL) + dbg->oom_handler (); + + newp->size = newp->remaining = size - offsetof (struct libdw_memblock, mem); + + newp->prev = dbg->mem_tail; + dbg->mem_tail = newp; + + return newp->mem; +} + + +Dwarf_OOM +dwarf_new_oom_handler (Dwarf *dbg, Dwarf_OOM handler) +{ + Dwarf_OOM old = dbg->oom_handler; + dbg->oom_handler = handler; + return old; +} + + +void +__attribute ((noreturn, visibility ("hidden"))) +__libdw_oom (void) +{ + while (1) + error (EXIT_FAILURE, ENOMEM, "libdw"); +} diff --git a/libdw/libdw_findcu.c b/libdw/libdw_findcu.c new file mode 100644 index 0000000..c1d3a45 --- /dev/null +++ b/libdw/libdw_findcu.c @@ -0,0 +1,110 @@ +/* Find CU for given offset. + Copyright (C) 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libdwP.h" + + +static int +findcu_cb (const void *arg1, const void *arg2) +{ + struct Dwarf_CU *cu1 = (struct Dwarf_CU *) arg1; + struct Dwarf_CU *cu2 = (struct Dwarf_CU *) arg2; + + /* Find out which of the two arguments is the search value. It has + end offset 0. */ + if (cu1->end == 0) + { + if (cu1->start < cu2->start) + return -1; + if (cu1->start >= cu2->end) + return 1; + } + else + { + if (cu2->start < cu1->start) + return 1; + if (cu2->start >= cu1->end) + return -1; + } + + return 0; +} + + +struct Dwarf_CU * +__libdw_findcu (dbg, start) + Dwarf *dbg; + Dwarf_Off start; +{ + /* Maybe we already know that CU. */ + struct Dwarf_CU fake = { .start = start, .end = 0 }; + struct Dwarf_CU **found = tfind (&fake, &dbg->cu_tree, findcu_cb); + if (found != NULL) + return *found; + + if (start < dbg->next_cu_offset) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return NULL; + } + + /* No. Then read more CUs. */ + while (1) + { + Dwarf_Off oldoff = dbg->next_cu_offset; + uint8_t address_size; + uint8_t offset_size; + Dwarf_Off abbrev_offset; + + if (INTUSE(dwarf_nextcu) (dbg, oldoff, &dbg->next_cu_offset, NULL, + &abbrev_offset, &address_size, &offset_size) + != 0) + /* No more entries. */ + return NULL; + + /* Create an entry for this CU. */ + struct Dwarf_CU *newp = libdw_typed_alloc (dbg, struct Dwarf_CU); + + newp->dbg = dbg; + newp->start = oldoff; + newp->end = dbg->next_cu_offset; + newp->address_size = address_size; + newp->offset_size = offset_size; + Dwarf_Abbrev_Hash_init (&newp->abbrev_hash, 41); + newp->orig_abbrev_offset = newp->last_abbrev_offset = abbrev_offset; + newp->lines = NULL; + newp->locs = NULL; + + /* Add the new entry to the search tree. */ + if (tsearch (newp, &dbg->cu_tree, findcu_cb) == NULL) + { + /* Something went wrong. Unfo the operation. */ + dbg->next_cu_offset = oldoff; + __libdw_seterrno (DWARF_E_NOMEM); + return NULL; + } + + /* Is this the one we are looking for? */ + if (start < dbg->next_cu_offset) + // XXX Match exact offset. + return newp; + } + /* NOTREACHED */ +} diff --git a/libdw/libdw_form.c b/libdw/libdw_form.c new file mode 100644 index 0000000..95d4714 --- /dev/null +++ b/libdw/libdw_form.c @@ -0,0 +1,112 @@ +/* Helper functions for form handling. + Copyright (C) 2003, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libdwP.h" + + +size_t +internal_function_def +__libdw_form_val_len (Dwarf *dbg, struct Dwarf_CU *cu, unsigned int form, + const unsigned char *valp) +{ + const unsigned char *saved; + Dwarf_Word u128; + size_t result; + + switch (form) + { + case DW_FORM_addr: + result = cu->address_size; + break; + + case DW_FORM_strp: + case DW_FORM_ref_addr: + result = cu->offset_size; + break; + + case DW_FORM_block1: + result = *valp + 1; + break; + + case DW_FORM_block2: + result = read_2ubyte_unaligned (dbg, valp) + 2; + break; + + case DW_FORM_block4: + result = read_4ubyte_unaligned (dbg, valp) + 4; + break; + + case DW_FORM_block: + saved = valp; + get_uleb128 (u128, valp); + result = u128 + (valp - saved); + break; + + case DW_FORM_ref1: + case DW_FORM_data1: + case DW_FORM_flag: + result = 1; + break; + + case DW_FORM_data2: + case DW_FORM_ref2: + result = 2; + break; + + case DW_FORM_data4: + case DW_FORM_ref4: + result = 4; + break; + + case DW_FORM_data8: + case DW_FORM_ref8: + result = 8; + break; + + case DW_FORM_string: + result = strlen ((char *) valp) + 1; + break; + + case DW_FORM_sdata: + case DW_FORM_udata: + case DW_FORM_ref_udata: + saved = valp; + get_uleb128 (u128, valp); + result = valp - saved; + break; + + case DW_FORM_indirect: + saved = valp; + get_uleb128 (u128, valp); + // XXX Is this really correct? + result = __libdw_form_val_len (dbg, cu, u128, valp); + if (result != (size_t) -1) + result += valp - saved; + break; + + default: + __libdw_seterrno (DWARF_E_INVALID_DWARF); + result = (size_t) -1l; + break; + } + + return result; +} diff --git a/libdw/memory-access.c b/libdw/memory-access.c new file mode 100644 index 0000000..04899a8 --- /dev/null +++ b/libdw/memory-access.c @@ -0,0 +1,35 @@ +/* Out of line functions for memory-access.h macros. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif +#include "libdwP.h" +#include "memory-access.h" + +uint64_t +internal_function_def +__libdw_get_uleb128 (uint64_t acc, unsigned int i, const unsigned char **addrp) +{ + unsigned char __b; + get_uleb128_rest_return (acc, i, addrp); +} + +int64_t +internal_function_def +__libdw_get_sleb128 (int64_t acc, unsigned int i, const unsigned char **addrp) +{ + unsigned char __b; + int64_t _v = acc; + get_sleb128_rest_return (acc, i, addrp); +} diff --git a/libdw/memory-access.h b/libdw/memory-access.h new file mode 100644 index 0000000..8efd899 --- /dev/null +++ b/libdw/memory-access.h @@ -0,0 +1,240 @@ +/* Unaligned memory access functionality. + Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _MEMORY_ACCESS_H +#define _MEMORY_ACCESS_H 1 + +#include +#include +#include + + +/* Number decoding macros. See 7.6 Variable Length Data. */ + +#define get_uleb128_step(var, addr, nth, break) \ + __b = *(addr)++; \ + var |= (uintmax_t) (__b & 0x7f) << (nth * 7); \ + if (likely ((__b & 0x80) == 0)) \ + break + +#define get_uleb128(var, addr) \ + do { \ + unsigned char __b; \ + var = 0; \ + get_uleb128_step (var, addr, 0, break); \ + var = __libdw_get_uleb128 (var, 1, &(addr)); \ + } while (0) + +#define get_uleb128_rest_return(var, i, addrp) \ + do { \ + for (; i < 10; ++i) \ + { \ + get_uleb128_step (var, *addrp, i, return var); \ + } \ + /* Other implementations set VALUE to UINT_MAX in this \ + case. So we better do this as well. */ \ + return UINT64_MAX; \ + } while (0) + +/* The signed case is similar, but we sign-extend the result. */ + +#define get_sleb128_step(var, addr, nth, break) \ + __b = *(addr)++; \ + _v |= (uint64_t) (__b & 0x7f) << (nth * 7); \ + if (likely ((__b & 0x80) == 0)) \ + { \ + var = (_v << (64 - (nth * 7) - 7) >> (64 - (nth * 7) - 7)); \ + break; \ + } \ + else do {} while (0) + +#define get_sleb128(var, addr) \ + do { \ + unsigned char __b; \ + int64_t _v = 0; \ + get_sleb128_step (var, addr, 0, break); \ + var = __libdw_get_sleb128 (_v, 1, &(addr)); \ + } while (0) + +#define get_sleb128_rest_return(var, i, addrp) \ + do { \ + for (; i < 9; ++i) \ + { \ + get_sleb128_step (var, *addrp, i, return var); \ + } \ + /* Other implementations set VALUE to INT_MAX in this \ + case. So we better do this as well. */ \ + return INT64_MAX; \ + } while (0) + +#ifdef IS_LIBDW +extern uint64_t __libdw_get_uleb128 (uint64_t acc, unsigned int i, + const unsigned char **addrp) + internal_function attribute_hidden; +extern int64_t __libdw_get_sleb128 (int64_t acc, unsigned int i, + const unsigned char **addrp) + internal_function attribute_hidden; +#else +static uint64_t +__attribute__ ((unused)) +__libdw_get_uleb128 (uint64_t acc, unsigned int i, const unsigned char **addrp) +{ + unsigned char __b; + get_uleb128_rest_return (acc, i, addrp); +} +static int64_t +__attribute__ ((unused)) +__libdw_get_sleb128 (int64_t acc, unsigned int i, const unsigned char **addrp) +{ + unsigned char __b; + int64_t _v = acc; + get_sleb128_rest_return (acc, i, addrp); +} +#endif + + +/* We use simple memory access functions in case the hardware allows it. + The caller has to make sure we don't have alias problems. */ +#if ALLOW_UNALIGNED + +# define read_2ubyte_unaligned(Dbg, Addr) \ + (unlikely ((Dbg)->other_byte_order) \ + ? bswap_16 (*((const uint16_t *) (Addr))) \ + : *((const uint16_t *) (Addr))) +# define read_2sbyte_unaligned(Dbg, Addr) \ + (unlikely ((Dbg)->other_byte_order) \ + ? (int16_t) bswap_16 (*((const int16_t *) (Addr))) \ + : *((const int16_t *) (Addr))) + +# define read_4ubyte_unaligned_noncvt(Addr) \ + *((const uint32_t *) (Addr)) +# define read_4ubyte_unaligned(Dbg, Addr) \ + (unlikely ((Dbg)->other_byte_order) \ + ? bswap_32 (*((const uint32_t *) (Addr))) \ + : *((const uint32_t *) (Addr))) +# define read_4sbyte_unaligned(Dbg, Addr) \ + (unlikely ((Dbg)->other_byte_order) \ + ? (int32_t) bswap_32 (*((const int32_t *) (Addr))) \ + : *((const int32_t *) (Addr))) + +# define read_8ubyte_unaligned(Dbg, Addr) \ + (unlikely ((Dbg)->other_byte_order) \ + ? bswap_64 (*((const uint64_t *) (Addr))) \ + : *((const uint64_t *) (Addr))) +# define read_8sbyte_unaligned(Dbg, Addr) \ + (unlikely ((Dbg)->other_byte_order) \ + ? (int64_t) bswap_64 (*((const int64_t *) (Addr))) \ + : *((const int64_t *) (Addr))) + +#else + +union unaligned + { + void *p; + uint16_t u2; + uint32_t u4; + uint64_t u8; + int16_t s2; + int32_t s4; + int64_t s8; + } __attribute__ ((packed)); + +static inline uint16_t +read_2ubyte_unaligned (Dwarf *dbg, const void *p) +{ + const union unaligned *up = p; + if (dbg->other_byte_order) + return bswap_16 (up->u2); + return up->u2; +} +static inline int16_t +read_2sbyte_unaligned (Dwarf *dbg, const void *p) +{ + const union unaligned *up = p; + if (dbg->other_byte_order) + return (int16_t) bswap_16 (up->u2); + return up->s2; +} + +static inline uint32_t +read_4ubyte_unaligned_noncvt (const void *p) +{ + const union unaligned *up = p; + return up->u4; +} +static inline uint32_t +read_4ubyte_unaligned (Dwarf *dbg, const void *p) +{ + const union unaligned *up = p; + if (dbg->other_byte_order) + return bswap_32 (up->u4); + return up->u4; +} +static inline int32_t +read_4sbyte_unaligned (Dwarf *dbg, const void *p) +{ + const union unaligned *up = p; + if (dbg->other_byte_order) + return (int32_t) bswap_32 (up->u4); + return up->s4; +} + +static inline uint64_t +read_8ubyte_unaligned (Dwarf *dbg, const void *p) +{ + const union unaligned *up = p; + if (dbg->other_byte_order) + return bswap_64 (up->u8); + return up->u8; +} +static inline int64_t +read_8sbyte_unaligned (Dwarf *dbg, const void *p) +{ + const union unaligned *up = p; + if (dbg->other_byte_order) + return (int64_t) bswap_64 (up->u8); + return up->s8; +} + +#endif /* allow unaligned */ + + +#define read_2ubyte_unaligned_inc(Dbg, Addr) \ + ({ uint16_t t_ = read_2ubyte_unaligned (Dbg, Addr); \ + Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 2); \ + t_; }) +#define read_2sbyte_unaligned_inc(Dbg, Addr) \ + ({ int16_t t_ = read_2sbyte_unaligned (Dbg, Addr); \ + Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 2); \ + t_; }) + +#define read_4ubyte_unaligned_inc(Dbg, Addr) \ + ({ uint32_t t_ = read_4ubyte_unaligned (Dbg, Addr); \ + Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 4); \ + t_; }) +#define read_4sbyte_unaligned_inc(Dbg, Addr) \ + ({ int32_t t_ = read_4sbyte_unaligned (Dbg, Addr); \ + Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 4); \ + t_; }) + +#define read_8ubyte_unaligned_inc(Dbg, Addr) \ + ({ uint64_t t_ = read_8ubyte_unaligned (Dbg, Addr); \ + Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 8); \ + t_; }) +#define read_8sbyte_unaligned_inc(Dbg, Addr) \ + ({ int64_t t_ = read_8sbyte_unaligned (Dbg, Addr); \ + Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 8); \ + t_; }) + +#endif /* memory-access.h */ diff --git a/libdwarf/.cvsignore b/libdwarf/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/libdwarf/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/libdwarf/AVAILABLE b/libdwarf/AVAILABLE new file mode 100644 index 0000000..642dd27 --- /dev/null +++ b/libdwarf/AVAILABLE @@ -0,0 +1,136 @@ +Data Types: + + Dwarf_Bool + Dwarf_Off + Dwarf_Unsigned + Dwarf_Half + Dwarf_Small + Dwarf_Signed + Dwarf_Addr + Dwarf_Ptr + Dwarf_Handler + + Dwarf_Debug + Dwarf_Die + Dwarf_Line + Dwarf_Global + Dwarf_Loc + Dwarf_Locdesc + Dwarf_Block + Dwarf_Error + Dwarf_Attribute + Dwarf_Fde + Dwarf_Cie + Dwarf_Arange + + NOT!!!: + + Dwarf_Frame_Op + Dwarf_Macro_Details + + Dwarf_Weak + Dwarf_Func + Dwarf_Type + Dwarf_Var + Dwarf_Abbrev + +Functions: + + dwarf_init() + dwarf_elf_init() + dwarf_get_elf() + dwarf_finish() + dwarf_next_cu_header() + dwarf_siblingof() + dwarf_child() + dwarf_offdie() + dwarf_tag() + dwarf_dieoffset() + dwarf_die_CU_offset() + dwarf_diename() + dwarf_attrlist() + dwarf_srclang() + dwarf_arrayorder() + dwarf_hasform() + dwarf_whatattr() + dwarf_formref() + dwarf_global_formref() + dwarf_formaddr() + dwarf_formflag() + dwarf_hasattr() + dwarf_attr() + dwarf_lowpc() + dwarf_highpc() + dwarf_bytesize() + dwarf_bitsize() + dwarf_bitoffset() + dwarf_formudata() + dwarf_formblock() + dwarf_formstring() + dwarf_loclist() + dwarf_srclines() + dwarf_srcfiles() + dwarf_linebeginstatement() + dwarf_lineendsequence() + dwarf_lineno() + dwarf_lineaddr() + dwarf_lineoff() + dwarf_linesrc() + dwarf_lineblock() + dwarf_get_globals() + dwarf_globname() + dwarf_global_die_offset() + dwarf_global_cu_offset() + dwarf_global_name_offsets() + dwarf_find_macro_value_start() + dwarf_get_fde_list_eh() + dwarf_get_fde_range() + dwarf_get_cie_of_fde() + dwarf_get_cie_info() + dwarf_get_fde_instr_bytes() + dwarf_get_fde_n() + dwarf_get_fde_at_pc() + dwarf_get_str() + dwarf_get_aranges() + dwarf_get_cu_die_offset() + dwarf_get_loclist_entry() + dwarf_get_abbrev() + dwarf_get_abbrev_tag() + dwarf_get_abbrev_code() + dwarf_get_abbrev_children_flag() + dwarf_get_abbrev_entry() + dwarf_get_arange_info() + dwarf_get_address_size() + dwarf_errno() + dwarf_errmsg() + dwarf_seterrhand() + dwarf_seterrarg() + dwarf_dealloc() + + NOT!!!: + + dwarf_get_weaks() + dwarf_weakname() + dwarf_weak_die_offset() + dwarf_weak_cu_offset() + dwarf_weak_name_offsets() + dwarf_get_funcs() + dwarf_funcname() + dwarf_func_die_offset() + dwarf_func_cu_offset() + dwarf_func_name_offsets() + dwarf_get_types() + dwarf_typename() + dwarf_type_die_offset() + dwarf_type_cu_offset() + dwarf_type_name_offsets() + dwarf_get_vars() + dwarf_varname() + dwarf_var_die_offset() + dwarf_var_cu_offset() + dwarf_var_name_offsets() + dwarf_get_fde_list() + dwarf_get_fde_for_die() + dwarf_get_fde_info_for_reg() <<------- + dwarf_get_fde_info_for_all_regs() + dwarf_expand_frame_instructions() <<------- diff --git a/libdwarf/ChangeLog b/libdwarf/ChangeLog new file mode 100644 index 0000000..c46ffcb --- /dev/null +++ b/libdwarf/ChangeLog @@ -0,0 +1,3 @@ +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/libdwarf/Makefile.am b/libdwarf/Makefile.am new file mode 100644 index 0000000..8af7a67 --- /dev/null +++ b/libdwarf/Makefile.am @@ -0,0 +1,103 @@ +## Process this file with automake to create Makefile.in -*-Makefile-*- +## Configure input file for elfutils. +## +## Copyright (C) 2000, 2001, 2002 Red Hat, Inc. +## +## This program is Open Source software; you can redistribute it and/or +## modify it under the terms of the Open Software License version 1.0 as +## published by the Open Source Initiative. +## +## You should have received a copy of the Open Software License along +## with this program; if not, you may obtain a copy of the Open Software +## License version 1.0 from http://www.opensource.org/licenses/osl.php or +## by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +## 3001 King Ranch Road, Ukiah, CA 95482. +## +DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -DDWARF_DEBUG +AM_CFLAGS = -Wall -Werror +INCLUDES = -I. -I$(srcdir) -I$(srcdir)/../libelf -I.. -I$(srcdir)/../lib +VERSION = 1 + +lib_LIBRARIES = libdwarf.a +noinst_LIBRARIES = libdwarf_pic.a +noinst_PROGRAMS = $(noinst_LIBRARIES:_pic.a=.so) +include_HEADERS = dwarf.h +euincludedir = ${includedir}/elfutils +euinclude_HEADERS = libdwarf.h + +libdwarf_a_SOURCES = dwarf_init.c dwarf_elf_init.c dwarf_get_elf.c \ + dwarf_finish.c \ + dwarf_next_cu_header.c dwarf_siblingof.c dwarf_child.c \ + dwarf_offdie.c \ + dwarf_tag.c dwarf_dieoffset.c dwarf_die_CU_offset.c \ + dwarf_diename.c dwarf_attrlist.c dwarf_hasattr.c \ + dwarf_attr.c dwarf_lowpc.c dwarf_highpc.c \ + dwarf_getconstant.c \ + dwarf_bytesize.c dwarf_bitsize.c dwarf_bitoffset.c \ + dwarf_srclang.c dwarf_whatattr.c dwarf_arrayorder.c \ + dwarf_hasform.c dwarf_whatform.c dwarf_formref.c \ + dwarf_global_formref.c dwarf_formaddr.c \ + dwarf_formstring.c dwarf_loclist.c \ + dwarf_formflag.c dwarf_formudata.c dwarf_formsdata.c \ + dwarf_formblock.c \ + dwarf_srclines.c dwarf_srcfiles.c \ + dwarf_linebeginstatement.c dwarf_lineendsequence.c \ + dwarf_lineno.c dwarf_lineaddr.c dwarf_lineoff.c \ + dwarf_linesrc.c dwarf_lineblock.c \ + dwarf_lineprologueend.c dwarf_lineepiloguebegin.c \ + dwarf_get_globals.c dwarf_globname.c \ + dwarf_global_die_offset.c dwarf_global_cu_offset.c \ + dwarf_global_name_offsets.c \ + dwarf_error.c dwarf_errno.c dwarf_errmsg.c \ + dwarf_abbrev_hash.c dwarf_getabbrev.c dwarf_form.c \ + dwarf_find_macro_value_start.c dwarf_get_str.c \ + dwarf_get_aranges.c dwarf_get_arange.c \ + dwarf_get_cu_die_offset.c dwarf_get_arange_info.c \ + dwarf_get_fde_list_eh.c dwarf_get_cie_of_fde.c \ + dwarf_get_cie_info.c dwarf_get_fde_instr_bytes.c \ + dwarf_get_fde_range.c dwarf_get_fde_n.c \ + dwarf_get_fde_at_pc.c \ + dwarf_get_loclist_entry.c \ + dwarf_get_abbrev.c dwarf_get_abbrev_tag.c \ + dwarf_get_abbrev_code.c dwarf_get_abbrev_children_flag.c\ + dwarf_get_abbrev_entry.c \ + dwarf_get_address_size.c \ + dwarf_seterrhand.c dwarf_seterrarg.c \ + dwarf_dealloc.c + +libdwarf_pic_a_SOURCES = +am_libdwarf_pic_a_OBJECTS = $(libdwarf_a_SOURCES:.c=.os) + +libdwarf_so_SOURCES = +libdwarf.so: libdwarf_pic.a libdwarf.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libdwarf.map,--no-undefined \ + -Wl,--soname,$@.$(VERSION),-z,defs \ + ../libelf/libelf.so + ln -fs $@ $@.$(VERSION) + + +%.os: %.c %.o + if $(COMPILE) -c -o $@ -fpic -DPIC -DSHARED -MT $@ -MD -MP \ + -MF "$(DEPDIR)/$*.Tpo" `test -f '$<' || echo '$(srcdir)/'`$<; \ + then cat "$(DEPDIR)/$*.Tpo" >> "$(DEPDIR)/$*.Po"; \ + rm -f "$(DEPDIR)/$*.Tpo"; \ + else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \ + fi + +install: install-am libdwarf.so + $(mkinstalldirs) $(DESTDIR)$(libdir) + $(INSTALL_PROGRAM) libdwarf.so $(DESTDIR)$(libdir)/libdwarf-$(PACKAGE_VERSION).so + ln -fs libdwarf-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libdwarf.so.$(VERSION) + ln -fs libdwarf.so.$(VERSION) $(DESTDIR)$(libdir)/libdwarf.so + +uninstall: uninstall-am + rm -f $(DESTDIR)$(libdir)/libdwarf-$(PACKAGE_VERSION).so + rm -f $(DESTDIR)$(libdir)/libdwarf.so.$(VERSION) + rm -f $(DESTDIR)$(libdir)/libdwarf.so + rmdir --ignore-fail-on-non-empty $(DESTDIR)$(includedir)/elfutils + +noinst_HEADERS = libdwarfP.h memory-access.h dwarf_abbrev_hash.h +EXTRA_DIST = AVAILABLE libdwarf.map + +CLEANFILES = $(am_libdwarf_pic_a_OBJECTS) diff --git a/libdwarf/dwarf.h b/libdwarf/dwarf.h new file mode 100644 index 0000000..81bdcc4 --- /dev/null +++ b/libdwarf/dwarf.h @@ -0,0 +1,549 @@ +/* This file defines standard DWARF types, structures, and macros. + Copyright (C) 2000, 2002 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _DWARF_H +#define _DWARF_H 1 + +/* DWARF tags. */ +enum + { + DW_TAG_array_type = 0x01, + DW_TAG_class_type = 0x02, + DW_TAG_entry_point = 0x03, + DW_TAG_enumeration_type = 0x04, + DW_TAG_formal_parameter = 0x05, + DW_TAG_imported_declaration = 0x08, + DW_TAG_label = 0x0a, + DW_TAG_lexical_block = 0x0b, + DW_TAG_member = 0x0d, + DW_TAG_pointer_type = 0x0f, + DW_TAG_reference_type = 0x10, + DW_TAG_compile_unit = 0x11, + DW_TAG_string_type = 0x12, + DW_TAG_structure_type = 0x13, + DW_TAG_subroutine_type = 0x15, + DW_TAG_typedef = 0x16, + DW_TAG_union_type = 0x17, + DW_TAG_unspecified_parameters = 0x18, + DW_TAG_variant = 0x19, + DW_TAG_common_block = 0x1a, + DW_TAG_common_inclusion = 0x1b, + DW_TAG_inheritance = 0x1c, + DW_TAG_inlined_subroutine = 0x1d, + DW_TAG_module = 0x1e, + DW_TAG_ptr_to_member_type = 0x1f, + DW_TAG_set_type = 0x20, + DW_TAG_subrange_type = 0x21, + DW_TAG_with_stmt = 0x22, + DW_TAG_access_declaration = 0x23, + DW_TAG_base_type = 0x24, + DW_TAG_catch_block = 0x25, + DW_TAG_const_type = 0x26, + DW_TAG_constant = 0x27, + DW_TAG_enumerator = 0x28, + DW_TAG_file_type = 0x29, + DW_TAG_friend = 0x2a, + DW_TAG_namelist = 0x2b, + DW_TAG_namelist_item = 0x2c, + DW_TAG_packed_type = 0x2d, + DW_TAG_subprogram = 0x2e, + DW_TAG_template_type_param = 0x2f, + DW_TAG_template_value_param = 0x30, + DW_TAG_thrown_type = 0x31, + DW_TAG_try_block = 0x32, + DW_TAG_variant_part = 0x33, + DW_TAG_variable = 0x34, + DW_TAG_volatile_type = 0x35, + DW_TAG_lo_user = 0x4080, + DW_TAG_MIPS_loop = 0x4081, + DW_TAG_format_label = 0x4101, + DW_TAG_function_template = 0x4102, + DW_TAG_class_template = 0x4103, + DW_TAG_hi_user = 0xffff + }; + + +/* Children determination encodings. */ +enum + { + DW_CHILDREN_no = 0, + DW_CHILDREN_yes = 1 + }; + + +/* DWARF attributes encodings. */ +enum + { + DW_AT_sibling = 0x01, + DW_AT_location = 0x02, + DW_AT_name = 0x03, + DW_AT_ordering = 0x09, + DW_AT_subscr_data = 0x0a, + DW_AT_byte_size = 0x0b, + DW_AT_bit_offset = 0x0c, + DW_AT_bit_size = 0x0d, + DW_AT_element_list = 0x0f, + DW_AT_stmt_list = 0x10, + DW_AT_low_pc = 0x11, + DW_AT_high_pc = 0x12, + DW_AT_language = 0x13, + DW_AT_member = 0x14, + DW_AT_discr = 0x15, + DW_AT_discr_value = 0x16, + DW_AT_visibility = 0x17, + DW_AT_import = 0x18, + DW_AT_string_length = 0x19, + DW_AT_common_reference = 0x1a, + DW_AT_comp_dir = 0x1b, + DW_AT_const_value = 0x1c, + DW_AT_containing_type = 0x1d, + DW_AT_default_value = 0x1e, + DW_AT_inline = 0x20, + DW_AT_is_optional = 0x21, + DW_AT_lower_bound = 0x22, + DW_AT_producer = 0x25, + DW_AT_prototyped = 0x27, + DW_AT_return_addr = 0x2a, + DW_AT_start_scope = 0x2c, + DW_AT_stride_size = 0x2e, + DW_AT_upper_bound = 0x2f, + DW_AT_abstract_origin = 0x31, + DW_AT_accessibility = 0x32, + DW_AT_address_class = 0x33, + DW_AT_artificial = 0x34, + DW_AT_base_types = 0x35, + DW_AT_calling_convention = 0x36, + DW_AT_count = 0x37, + DW_AT_data_member_location = 0x38, + DW_AT_decl_column = 0x39, + DW_AT_decl_file = 0x3a, + DW_AT_decl_line = 0x3b, + DW_AT_declaration = 0x3c, + DW_AT_discr_list = 0x3d, + DW_AT_encoding = 0x3e, + DW_AT_external = 0x3f, + DW_AT_frame_base = 0x40, + DW_AT_friend = 0x41, + DW_AT_identifier_case = 0x42, + DW_AT_macro_info = 0x43, + DW_AT_namelist_items = 0x44, + DW_AT_priority = 0x45, + DW_AT_segment = 0x46, + DW_AT_specification = 0x47, + DW_AT_static_link = 0x48, + DW_AT_type = 0x49, + DW_AT_use_location = 0x4a, + DW_AT_variable_parameter = 0x4b, + DW_AT_virtuality = 0x4c, + DW_AT_vtable_elem_location = 0x4d, + DW_AT_lo_user = 0x2000, + DW_AT_MIPS_fde = 0x2001, + DW_AT_MIPS_loop_begin = 0x2002, + DW_AT_MIPS_tail_loop_begin = 0x2003, + DW_AT_MIPS_epilog_begin = 0x2004, + DW_AT_MIPS_loop_unroll_factor = 0x2005, + DW_AT_MIPS_software_pipeline_depth = 0x2006, + DW_AT_MIPS_linkage_name = 0x2007, + DW_AT_MIPS_stride = 0x2008, + DW_AT_MIPS_abstract_name = 0x2009, + DW_AT_MIPS_clone_origin = 0x200a, + DW_AT_MIPS_has_inlines = 0x200b, + DW_AT_MIPS_stride_byte = 0x200c, + DW_AT_MIPS_stride_elem = 0x200d, + DW_AT_MIPS_ptr_dopetype = 0x200e, + DW_AT_MIPS_allocatable_dopetype = 0x200f, + DW_AT_MIPS_assumed_shape_dopetype = 0x2010, + DW_AT_MIPS_assumed_size = 0x2011, + DW_AT_sf_names = 0x2101, + DW_AT_src_info = 0x2102, + DW_AT_mac_info = 0x2103, + DW_AT_src_coords = 0x2104, + DW_AT_body_begin = 0x2105, + DW_AT_body_end = 0x2106, + DW_AT_hi_user = 0x3fff + }; + + +/* DWARF form encodings. */ +enum + { + DW_FORM_addr = 0x01, + DW_FORM_block2 = 0x03, + DW_FORM_block4 = 0x04, + DW_FORM_data2 = 0x05, + DW_FORM_data4 = 0x06, + DW_FORM_data8 = 0x07, + DW_FORM_string = 0x08, + DW_FORM_block = 0x09, + DW_FORM_block1 = 0x0a, + DW_FORM_data1 = 0x0b, + DW_FORM_flag = 0x0c, + DW_FORM_sdata = 0x0d, + DW_FORM_strp = 0x0e, + DW_FORM_udata = 0x0f, + DW_FORM_ref_addr = 0x10, + DW_FORM_ref1 = 0x11, + DW_FORM_ref2 = 0x12, + DW_FORM_ref4 = 0x13, + DW_FORM_ref8 = 0x14, + DW_FORM_ref_udata = 0x15, + DW_FORM_indirect = 0x16 + }; + + +/* DWARF location operation encodings. */ +enum + { + DW_OP_addr = 0x03, /* Constant address. */ + DW_OP_deref = 0x06, + DW_OP_const1u = 0x08, /* Unsigned 1-byte constant. */ + DW_OP_const1s = 0x09, /* Signed 1-byte constant. */ + DW_OP_const2u = 0x0a, /* Unsigned 2-byte constant. */ + DW_OP_const2s = 0x0b, /* Signed 2-byte constant. */ + DW_OP_const4u = 0x0c, /* Unsigned 4-byte constant. */ + DW_OP_const4s = 0x0d, /* Signed 4-byte constant. */ + DW_OP_const8u = 0x0e, /* Unsigned 8-byte constant. */ + DW_OP_const8s = 0x0f, /* Signed 8-byte constant. */ + DW_OP_constu = 0x10, /* Unsigned LEB128 constant. */ + DW_OP_consts = 0x11, /* Signed LEB128 constant. */ + DW_OP_dup = 0x12, + DW_OP_drop = 0x13, + DW_OP_over = 0x14, + DW_OP_pick = 0x15, /* 1-byte stack index. */ + DW_OP_swap = 0x16, + DW_OP_rot = 0x17, + DW_OP_xderef = 0x18, + DW_OP_abs = 0x19, + DW_OP_and = 0x1a, + DW_OP_div = 0x1b, + DW_OP_minus = 0x1c, + DW_OP_mod = 0x1d, + DW_OP_mul = 0x1e, + DW_OP_neg = 0x1f, + DW_OP_not = 0x20, + DW_OP_or = 0x21, + DW_OP_plus = 0x22, + DW_OP_plus_uconst = 0x23, /* Unsigned LEB128 addend. */ + DW_OP_shl = 0x24, + DW_OP_shr = 0x25, + DW_OP_shra = 0x26, + DW_OP_xor = 0x27, + DW_OP_bra = 0x28, /* Signed 2-byte constant. */ + DW_OP_eq = 0x29, + DW_OP_ge = 0x2a, + DW_OP_gt = 0x2b, + DW_OP_le = 0x2c, + DW_OP_lt = 0x2d, + DW_OP_ne = 0x2e, + DW_OP_skip = 0x2f, /* Signed 2-byte constant. */ + DW_OP_lit0 = 0x30, /* Literal 0. */ + DW_OP_lit1 = 0x31, /* Literal 1. */ + DW_OP_lit2 = 0x32, /* Literal 2. */ + DW_OP_lit3 = 0x33, /* Literal 3. */ + DW_OP_lit4 = 0x34, /* Literal 4. */ + DW_OP_lit5 = 0x35, /* Literal 5. */ + DW_OP_lit6 = 0x36, /* Literal 6. */ + DW_OP_lit7 = 0x37, /* Literal 7. */ + DW_OP_lit8 = 0x38, /* Literal 8. */ + DW_OP_lit9 = 0x39, /* Literal 9. */ + DW_OP_lit10 = 0x3a, /* Literal 10. */ + DW_OP_lit11 = 0x3b, /* Literal 11. */ + DW_OP_lit12 = 0x3c, /* Literal 12. */ + DW_OP_lit13 = 0x3d, /* Literal 13. */ + DW_OP_lit14 = 0x3e, /* Literal 14. */ + DW_OP_lit15 = 0x3f, /* Literal 15. */ + DW_OP_lit16 = 0x40, /* Literal 16. */ + DW_OP_lit17 = 0x41, /* Literal 17. */ + DW_OP_lit18 = 0x42, /* Literal 18. */ + DW_OP_lit19 = 0x43, /* Literal 19. */ + DW_OP_lit20 = 0x44, /* Literal 20. */ + DW_OP_lit21 = 0x45, /* Literal 21. */ + DW_OP_lit22 = 0x46, /* Literal 22. */ + DW_OP_lit23 = 0x47, /* Literal 23. */ + DW_OP_lit24 = 0x48, /* Literal 24. */ + DW_OP_lit25 = 0x49, /* Literal 25. */ + DW_OP_lit26 = 0x4a, /* Literal 26. */ + DW_OP_lit27 = 0x4b, /* Literal 27. */ + DW_OP_lit28 = 0x4c, /* Literal 28. */ + DW_OP_lit29 = 0x4d, /* Literal 29. */ + DW_OP_lit30 = 0x4e, /* Literal 30. */ + DW_OP_lit31 = 0x4f, /* Literal 31. */ + DW_OP_reg0 = 0x50, /* Register 0. */ + DW_OP_reg1 = 0x51, /* Register 1. */ + DW_OP_reg2 = 0x52, /* Register 2. */ + DW_OP_reg3 = 0x53, /* Register 3. */ + DW_OP_reg4 = 0x54, /* Register 4. */ + DW_OP_reg5 = 0x55, /* Register 5. */ + DW_OP_reg6 = 0x56, /* Register 6. */ + DW_OP_reg7 = 0x57, /* Register 7. */ + DW_OP_reg8 = 0x58, /* Register 8. */ + DW_OP_reg9 = 0x59, /* Register 9. */ + DW_OP_reg10 = 0x5a, /* Register 10. */ + DW_OP_reg11 = 0x5b, /* Register 11. */ + DW_OP_reg12 = 0x5c, /* Register 12. */ + DW_OP_reg13 = 0x5d, /* Register 13. */ + DW_OP_reg14 = 0x5e, /* Register 14. */ + DW_OP_reg15 = 0x5f, /* Register 15. */ + DW_OP_reg16 = 0x60, /* Register 16. */ + DW_OP_reg17 = 0x61, /* Register 17. */ + DW_OP_reg18 = 0x62, /* Register 18. */ + DW_OP_reg19 = 0x63, /* Register 19. */ + DW_OP_reg20 = 0x64, /* Register 20. */ + DW_OP_reg21 = 0x65, /* Register 21. */ + DW_OP_reg22 = 0x66, /* Register 22. */ + DW_OP_reg23 = 0x67, /* Register 24. */ + DW_OP_reg24 = 0x68, /* Register 24. */ + DW_OP_reg25 = 0x69, /* Register 25. */ + DW_OP_reg26 = 0x6a, /* Register 26. */ + DW_OP_reg27 = 0x6b, /* Register 27. */ + DW_OP_reg28 = 0x6c, /* Register 28. */ + DW_OP_reg29 = 0x6d, /* Register 29. */ + DW_OP_reg30 = 0x6e, /* Register 30. */ + DW_OP_reg31 = 0x6f, /* Register 31. */ + DW_OP_breg0 = 0x70, /* Base register 0. */ + DW_OP_breg1 = 0x71, /* Base register 1. */ + DW_OP_breg2 = 0x72, /* Base register 2. */ + DW_OP_breg3 = 0x73, /* Base register 3. */ + DW_OP_breg4 = 0x74, /* Base register 4. */ + DW_OP_breg5 = 0x75, /* Base register 5. */ + DW_OP_breg6 = 0x76, /* Base register 6. */ + DW_OP_breg7 = 0x77, /* Base register 7. */ + DW_OP_breg8 = 0x78, /* Base register 8. */ + DW_OP_breg9 = 0x79, /* Base register 9. */ + DW_OP_breg10 = 0x7a, /* Base register 10. */ + DW_OP_breg11 = 0x7b, /* Base register 11. */ + DW_OP_breg12 = 0x7c, /* Base register 12. */ + DW_OP_breg13 = 0x7d, /* Base register 13. */ + DW_OP_breg14 = 0x7e, /* Base register 14. */ + DW_OP_breg15 = 0x7f, /* Base register 15. */ + DW_OP_breg16 = 0x80, /* Base register 16. */ + DW_OP_breg17 = 0x81, /* Base register 17. */ + DW_OP_breg18 = 0x82, /* Base register 18. */ + DW_OP_breg19 = 0x83, /* Base register 19. */ + DW_OP_breg20 = 0x84, /* Base register 20. */ + DW_OP_breg21 = 0x85, /* Base register 21. */ + DW_OP_breg22 = 0x86, /* Base register 22. */ + DW_OP_breg23 = 0x87, /* Base register 23. */ + DW_OP_breg24 = 0x88, /* Base register 24. */ + DW_OP_breg25 = 0x89, /* Base register 25. */ + DW_OP_breg26 = 0x8a, /* Base register 26. */ + DW_OP_breg27 = 0x8b, /* Base register 27. */ + DW_OP_breg28 = 0x8c, /* Base register 28. */ + DW_OP_breg29 = 0x8d, /* Base register 29. */ + DW_OP_breg30 = 0x8e, /* Base register 30. */ + DW_OP_breg31 = 0x8f, /* Base register 31. */ + DW_OP_regx = 0x90, /* Unsigned LEB128 register. */ + DW_OP_fbreg = 0x91, /* Signed LEB128 register. */ + DW_OP_bregx = 0x92, /* ULEB128 register followed by SLEB128 off. */ + DW_OP_piece = 0x93, /* ULEB128 size of piece addressed. */ + DW_OP_deref_size = 0x94, /* 1-byte size of data retrieved. */ + DW_OP_xderef_size = 0x95, /* 1-byte size of data retrieved. */ + DW_OP_nop = 0x96, + DW_OP_push_object_address = 0x97, + DW_OP_call2 = 0x98, + DW_OP_call4 = 0x99, + DW_OP_call_ref = 0x9a, + + DW_OP_lo_user = 0xe0, /* Implementation-defined range start. */ + DW_OP_hi_user = 0xff /* Implementation-defined range end. */ + }; + + +/* DWARF base type encodings. */ +enum + { + DW_ATE_void = 0x0, + DW_ATE_address = 0x1, + DW_ATE_boolean = 0x2, + DW_ATE_complex_float = 0x3, + DW_ATE_float = 0x4, + DW_ATE_signed = 0x5, + DW_ATE_signed_char = 0x6, + DW_ATE_unsigned = 0x7, + DW_ATE_unsigned_char = 0x8, + + DW_ATE_lo_user = 0x80, + DW_ATE_hi_user = 0xff + }; + + +/* DWARF accessibility encodings. */ +enum + { + DW_ACCESS_public = 1, + DW_ACCESS_protected = 2, + DW_ACCESS_private = 3 + }; + + +/* DWARF visibility encodings. */ +enum + { + DW_VIS_local = 1, + DW_VIS_exported = 2, + DW_VIS_qualified = 3 + }; + + +/* DWARF virtuality encodings. */ +enum + { + DW_VIRTUALITY_none = 0, + DW_VIRTUALITY_virtual = 1, + DW_VIRTUALITY_pure_virtual = 2 + }; + + +/* DWARF language encodings. */ +enum + { + DW_LANG_C89 = 0x0001, + DW_LANG_C = 0x0002, + DW_LANG_Ada83 = 0x0003, + DW_LANG_C_plus_plus = 0x0004, + DW_LANG_Cobol74 = 0x0005, + DW_LANG_Cobol85 = 0x0006, + DW_LANG_Fortran77 = 0x0007, + DW_LANG_Fortran90 = 0x0008, + DW_LANG_Pascal83 = 0x0009, + DW_LANG_Modula2 = 0x000a, + DW_LANG_Java = 0x000b, + DW_LANG_C99 = 0x000c, + DW_LANG_Ada95 = 0x000d, + DW_LANG_Fortran95 = 0x000e, + DW_LANG_PL1 = 0x000f, + DW_LANG_lo_user = 0x8000, + DW_LANG_Mips_Assembler = 0x8001, + DW_LANG_hi_user = 0xffff + }; + + +/* DWARF identifier case encodings. */ +enum + { + DW_ID_case_sensitive = 0, + DW_ID_up_case = 1, + DW_ID_down_case = 2, + DW_ID_case_insensitive = 3 + }; + + +/* DWARF calling conventions encodings. */ +enum + { + DW_CC_normal = 0x1, + DW_CC_program = 0x2, + DW_CC_nocall = 0x3, + DW_CC_lo_user = 0x40, + DW_CC_hi_user = 0xff + }; + + +/* DWARF inline encodings. */ +enum + { + DW_INL_not_inlined = 0, + DW_INL_inlined = 1, + DW_INL_declared_not_inlined = 2, + DW_INL_declared_inlined = 3 + }; + + +/* DWARF ordering encodings. */ +enum + { + DW_ORD_row_major = 0, + DW_ORD_col_major = 1 + }; + + +/* DWARF discriminant descriptor encodings. */ +enum + { + DW_DSC_label = 0, + DW_DSC_range = 1 + }; + + +/* DWARF standard opcode encodings. */ +enum + { + DW_LNS_copy = 1, + DW_LNS_advance_pc = 2, + DW_LNS_advance_line = 3, + DW_LNS_set_file = 4, + DW_LNS_set_column = 5, + DW_LNS_negate_stmt = 6, + DW_LNS_set_basic_block = 7, + DW_LNS_const_add_pc = 8, + DW_LNS_fixed_advance_pc = 9, + DW_LNS_set_prologue_end = 10, + DW_LNS_set_epilog_begin = 11 + }; + + +/* DWARF extended opcide encodings. */ +enum + { + DW_LNE_end_sequence = 1, + DW_LNE_set_address = 2, + DW_LNE_define_file = 3 + }; + + +/* DWARF macinfo type encodings. */ +enum + { + DW_MACINFO_define = 1, + DW_MACINFO_undef = 2, + DW_MACINFO_start_file = 3, + DW_MACINFO_end_file = 4, + DW_MACINFO_vendor_ext = 255 + }; + + +/* DWARF call frame instruction encodings. */ +enum + { + DW_CFA_advance_loc = 0x40, + DW_CFA_offset = 0x80, + DW_CFA_restore = 0xc0, + DW_CFA_extended = 0, + + DW_CFA_nop = 0x00, + DW_CFA_set_loc = 0x01, + DW_CFA_advance_loc1 = 0x02, + DW_CFA_advance_loc2 = 0x03, + DW_CFA_advance_loc4 = 0x04, + DW_CFA_offset_extended = 0x05, + DW_CFA_restore_extended = 0x06, + DW_CFA_undefined = 0x07, + DW_CFA_same_value = 0x08, + DW_CFA_register = 0x09, + DW_CFA_remember_state = 0x0a, + DW_CFA_restore_state = 0x0b, + DW_CFA_def_cfa = 0x0c, + DW_CFA_def_cfa_register = 0x0d, + DW_CFA_def_cfa_offset = 0x0e, + DW_CFA_low_user = 0x1c, + DW_CFA_MIPS_advance_loc8 = 0x1d, + DW_CFA_GNU_window_save = 0x2d, + DW_CFA_GNU_args_size = 0x2e, + DW_CFA_high_user = 0x3f + }; + + +/* DWARF XXX. */ +#define DW_ADDR_none 0 + +#endif /* dwarf.h */ diff --git a/libdwarf/dwarf_abbrev_hash.c b/libdwarf/dwarf_abbrev_hash.c new file mode 100644 index 0000000..a196449 --- /dev/null +++ b/libdwarf/dwarf_abbrev_hash.c @@ -0,0 +1,29 @@ +/* Implementation of hash table for DWARF .debug_abbrev section content. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#define NO_UNDEF +#include "libdwarfP.h" + +#define next_prime __libdwarf_next_prime +extern size_t next_prime (size_t) attribute_hidden; + +#include + +#undef next_prime +#define next_prime attribute_hidden __libdwarf_next_prime +#include "../lib/next_prime.c" diff --git a/libdwarf/dwarf_abbrev_hash.h b/libdwarf/dwarf_abbrev_hash.h new file mode 100644 index 0000000..45c2346 --- /dev/null +++ b/libdwarf/dwarf_abbrev_hash.h @@ -0,0 +1,24 @@ +/* Hash table for DWARF .debug_abbrev section content. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _DWARF_ABBREV_HASH_H +#define _DWARF_ABBREV_HASH_H 1 + +#define NAME Dwarf_Abbrev_Hash +#define TYPE Dwarf_Abbrev +#define COMPARE(a, b) (0) + +#include + +#endif /* dwarf_abbrev_hash.h */ diff --git a/libdwarf/dwarf_arrayorder.c b/libdwarf/dwarf_arrayorder.c new file mode 100644 index 0000000..88f3080 --- /dev/null +++ b/libdwarf/dwarf_arrayorder.c @@ -0,0 +1,31 @@ +/* Return array ordering information associated with die. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_arrayorder (die, return_order, error) + Dwarf_Die die; + Dwarf_Unsigned *return_order; + Dwarf_Error *error; +{ + return __libdwarf_getconstant (die, DW_AT_ordering, return_order, error); +} diff --git a/libdwarf/dwarf_attr.c b/libdwarf/dwarf_attr.c new file mode 100644 index 0000000..f1b20f4 --- /dev/null +++ b/libdwarf/dwarf_attr.c @@ -0,0 +1,113 @@ +/* Return die attribute with specified of given type. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_attr (die, attr, return_attr, error) + Dwarf_Die die; + Dwarf_Half attr; + Dwarf_Attribute *return_attr; + Dwarf_Error *error; +{ + Dwarf_Debug dbg = die->cu->dbg; + Dwarf_Small *die_addr; + Dwarf_Word u128; + Dwarf_Abbrev abbrev; + Dwarf_Small *attrp; + + /* Address of the given die. */ + die_addr = die->addr; + + /* Get abbrev code. */ + get_uleb128 (u128, die_addr); + /* And get the abbreviation itself. */ + abbrev = __libdwarf_get_abbrev (dbg, die->cu, u128, error); + if (abbrev == NULL) + return DW_DLV_ERROR; + + /* This is where the attributes start. */ + attrp = abbrev->attrp; + + /* Search the name attribute. */ + while (1) + { + Dwarf_Word attr_name; + Dwarf_Word attr_form; + + /* Are we still in bounds? */ + if (unlikely (attrp + >= ((Dwarf_Small *) dbg->sections[IDX_debug_abbrev].addr + + dbg->sections[IDX_debug_abbrev].size))) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get attribute name and form. + + XXX We don't check whether this reads beyond the end of the + section. */ + get_uleb128 (attr_name, attrp); + get_uleb128 (attr_form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr_name == 0 && attr_form == 0) + break; + + /* Is this the name attribute? */ + if (attr_name == attr) + { + Dwarf_Attribute new_attr; + + new_attr = + (Dwarf_Attribute) malloc (sizeof (struct Dwarf_Attribute_s)); + if (new_attr == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + new_attr->code = attr_name; + new_attr->form = attr_form; + new_attr->valp = die_addr; + new_attr->cu = die->cu; + + *return_attr = new_attr; + return DW_DLV_OK; + } + + /* Skip over the rest of this attribute (if there is any). */ + if (attr_form != 0) + { + size_t len; + + if (__libdwarf_form_val_len (dbg, die->cu, attr_form, die_addr, &len, + error) != DW_DLV_OK) + return DW_DLV_ERROR; + + die_addr += len; + } + } + + /* No such attribute present. */ + return DW_DLV_NO_ENTRY; +} diff --git a/libdwarf/dwarf_attrlist.c b/libdwarf/dwarf_attrlist.c new file mode 100644 index 0000000..bef5a11 --- /dev/null +++ b/libdwarf/dwarf_attrlist.c @@ -0,0 +1,182 @@ +/* Return attribute list for die. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +struct attrlist +{ + struct attrlist *next; + Dwarf_Attribute attr; +}; + + +int +dwarf_attrlist (die, attrbuf, attrcount, error) + Dwarf_Die die; + Dwarf_Attribute **attrbuf; + Dwarf_Signed *attrcount; + Dwarf_Error *error; +{ + Dwarf_Debug dbg = die->cu->dbg; + Dwarf_Small *die_addr; + Dwarf_Word u128; + Dwarf_Abbrev abbrev; + Dwarf_Small *attrp; + struct attrlist *alist; + int nattr; + Dwarf_Attribute *result; + + /* Address of the given die. */ + die_addr = die->addr; + + /* Get abbrev code. */ + get_uleb128 (u128, die_addr); + /* And get the abbreviation itself. */ + abbrev = __libdwarf_get_abbrev (dbg, die->cu, u128, error); + if (abbrev == NULL) + return DW_DLV_ERROR; + + /* This is where the attributes start. */ + attrp = abbrev->attrp; + + /* Initialize the list. We create one because we don't know yet how + many attributes there will be. */ + alist = NULL; + nattr = 0; + + /* Go over the list of attributes. */ + while (1) + { + Dwarf_Word attr_name; + Dwarf_Word attr_form; + Dwarf_Attribute new_attr; + struct attrlist *new_alist; + + /* Are we still in bounds? */ + if (unlikely (attrp + >= ((Dwarf_Small *) dbg->sections[IDX_debug_abbrev].addr + + dbg->sections[IDX_debug_abbrev].size))) + { + while (alist != NULL) + { + free (alist->attr); + alist = alist->next; + } + + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get attribute name and form. + + XXX We don't check whether this reads beyond the end of the + section. */ + get_uleb128 (attr_name, attrp); + get_uleb128 (attr_form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr_name == 0 && attr_form == 0) + break; + + /* Allocate the attribute data structure. */ + new_attr = (Dwarf_Attribute) malloc (sizeof (struct Dwarf_Attribute_s)); + if (new_attr == NULL) + { + while (alist != NULL) + { + free (alist->attr); + alist = alist->next; + } + + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + /* Fill in the values. */ + new_attr->code = attr_name; + new_attr->form = attr_form; + new_attr->valp = die_addr; + new_attr->cu = die->cu; + + /* Enqueue. */ + new_alist = (struct attrlist *) alloca (sizeof (struct attrlist)); + new_alist->attr = new_attr; + new_alist->next = alist; + alist = new_alist; + ++nattr; + + /* Skip over the rest of this attribute (if there is any). */ + if (attr_form != 0) + { + size_t len; + + if (unlikely (__libdwarf_form_val_len (dbg, die->cu, attr_form, + die_addr, &len, error) + != DW_DLV_OK)) + { + while (alist != NULL) + { + free (alist->attr); + alist = alist->next; + } + + return DW_DLV_ERROR; + } + + die_addr += len; + } + } + + if (nattr == 0) + { + *attrcount = 0; + *attrbuf = NULL; + return DW_DLV_NO_ENTRY; + } + + /* Allocate the array for the result. */ + result = (Dwarf_Attribute *) malloc (nattr * sizeof (Dwarf_Attribute)); + if (result == NULL) + { + while (alist != NULL) + { + free (alist->attr); + alist = alist->next; + } + + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + /* Store the number of attributes and the result pointer. */ + *attrcount = nattr; + *attrbuf = result; + + /* Put the attribute entries in the array (in the right order). */ + do + { + result[--nattr] = alist->attr; + alist = alist->next; + } + while (nattr > 0); + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_bitoffset.c b/libdwarf/dwarf_bitoffset.c new file mode 100644 index 0000000..bfc9165 --- /dev/null +++ b/libdwarf/dwarf_bitoffset.c @@ -0,0 +1,31 @@ +/* Return bit offset value associated with die. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_bitoffset (die, return_size, error) + Dwarf_Die die; + Dwarf_Unsigned *return_size; + Dwarf_Error *error; +{ + return __libdwarf_getconstant (die, DW_AT_bit_offset, return_size, error); +} diff --git a/libdwarf/dwarf_bitsize.c b/libdwarf/dwarf_bitsize.c new file mode 100644 index 0000000..007975c --- /dev/null +++ b/libdwarf/dwarf_bitsize.c @@ -0,0 +1,31 @@ +/* Return bit size value associated with die. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_bitsize (die, return_size, error) + Dwarf_Die die; + Dwarf_Unsigned *return_size; + Dwarf_Error *error; +{ + return __libdwarf_getconstant (die, DW_AT_bit_size, return_size, error); +} diff --git a/libdwarf/dwarf_bytesize.c b/libdwarf/dwarf_bytesize.c new file mode 100644 index 0000000..68d728a --- /dev/null +++ b/libdwarf/dwarf_bytesize.c @@ -0,0 +1,31 @@ +/* Return byte size value associated with die. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_bytesize (die, return_size, error) + Dwarf_Die die; + Dwarf_Unsigned *return_size; + Dwarf_Error *error; +{ + return __libdwarf_getconstant (die, DW_AT_byte_size, return_size, error); +} diff --git a/libdwarf/dwarf_child.c b/libdwarf/dwarf_child.c new file mode 100644 index 0000000..ee9c833 --- /dev/null +++ b/libdwarf/dwarf_child.c @@ -0,0 +1,123 @@ +/* Return child of die. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_child (die, return_kid, error) + Dwarf_Die die; + Dwarf_Die *return_kid; + Dwarf_Error *error; +{ + Dwarf_Debug dbg = die->cu->dbg; + Dwarf_Abbrev abbrev; + Dwarf_Small *attrp; + Dwarf_Small *die_addr; + Dwarf_Word u128; + Dwarf_Die new_die; + + if (! die->abbrev->has_children) + return DW_DLV_NO_ENTRY; + + /* Address of the given die. */ + die_addr = die->addr; + + /* Get abbrev code. */ + get_uleb128 (u128, die_addr); + /* And get the abbreviation itself. */ + abbrev = __libdwarf_get_abbrev (dbg, die->cu, u128, error); + if (abbrev == NULL) + return DW_DLV_ERROR; + + /* This is where the attributes start. */ + attrp = abbrev->attrp; + + /* Skip over the attributes of the given die. */ + while (1) + { + Dwarf_Word attr_name; + Dwarf_Word attr_form; + + /* Are we still in bounds? */ + if (unlikely (attrp + >= ((Dwarf_Small *)dbg->sections[IDX_debug_abbrev].addr + + dbg->sections[IDX_debug_abbrev].size))) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get attribute name and form. + + XXX We don't check whether this reads beyond the end of the + section. */ + get_uleb128 (attr_name, attrp); + get_uleb128 (attr_form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr_name == 0 && attr_form == 0) + break; + + /* Skip over the rest of this attribute (if there is any). */ + if (attr_form != 0) + { + size_t len; + + if (unlikely (__libdwarf_form_val_len (dbg, die->cu, attr_form, + die_addr, &len, error) + != DW_DLV_OK)) + return DW_DLV_ERROR; + + die_addr += len; + } + } + + /* Allocate the die structure for the result. */ + new_die = (Dwarf_Die) malloc (sizeof (struct Dwarf_Die_s)); + if (new_die == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } +#ifdef DWARF_DEBUG + new_die->memtag = DW_DLA_DIE; +#endif + + /* Remember the address. */ + new_die->addr = die_addr; + + /* And the compile unit. */ + new_die->cu = die->cu; + + /* 7.5.2 Debugging Information Entry + + Each debugging information entry begins with an unsigned LEB128 + number containing the abbreviation code for the entry. */ + get_uleb128 (u128, die_addr); + + /* Find the abbreviation. */ + new_die->abbrev = __libdwarf_get_abbrev (dbg, die->cu, u128, error); + if (new_die->abbrev == NULL) + return DW_DLV_ERROR; + + *return_kid = new_die; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_dealloc.c b/libdwarf/dwarf_dealloc.c new file mode 100644 index 0000000..365303b --- /dev/null +++ b/libdwarf/dwarf_dealloc.c @@ -0,0 +1,32 @@ +/* Deallocate memory. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +void +dwarf_dealloc (dbg, space, alloc_type) + Dwarf_Debug dbg; + Dwarf_Ptr space; + Dwarf_Unsigned alloc_type; +{ + /* XXX For now we don't do anything fancy. */ + free (space); +} diff --git a/libdwarf/dwarf_die_CU_offset.c b/libdwarf/dwarf_die_CU_offset.c new file mode 100644 index 0000000..2d80fd5 --- /dev/null +++ b/libdwarf/dwarf_die_CU_offset.c @@ -0,0 +1,33 @@ +/* Return offset of die in compile unit data. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_die_CU_offset (die, return_offset, error) + Dwarf_Die die; + Dwarf_Off *return_offset; + Dwarf_Error *error; +{ + *return_offset = + (die->addr + - (Dwarf_Small *) die->cu->dbg->sections[IDX_debug_info].addr + - die->cu->offset); + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_diename.c b/libdwarf/dwarf_diename.c new file mode 100644 index 0000000..2dfcd57 --- /dev/null +++ b/libdwarf/dwarf_diename.c @@ -0,0 +1,139 @@ +/* Return string in name attribute of die. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +int +dwarf_diename (die, return_name, error) + Dwarf_Die die; + char **return_name; + Dwarf_Error *error; +{ + Dwarf_Debug dbg = die->cu->dbg; + Dwarf_Small *die_addr; + Dwarf_Word u128; + Dwarf_Abbrev abbrev; + Dwarf_Small *attrp; + + /* Address of the given die. */ + die_addr = die->addr; + + /* Get abbrev code. */ + get_uleb128 (u128, die_addr); + /* And get the abbreviation itself. */ + abbrev = __libdwarf_get_abbrev (dbg, die->cu, u128, error); + if (abbrev == NULL) + return DW_DLV_ERROR; + + /* This is where the attributes start. */ + attrp = abbrev->attrp; + + /* Search the name attribute. */ + while (1) + { + Dwarf_Word attr_name; + Dwarf_Word attr_form; + + /* Are we still in bounds? */ + if (unlikely (attrp + >= ((Dwarf_Small *)dbg->sections[IDX_debug_abbrev].addr + + dbg->sections[IDX_debug_abbrev].size))) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get attribute name and form. + + XXX We don't check whether this reads beyond the end of the + section. */ + get_uleb128 (attr_name, attrp); + get_uleb128 (attr_form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr_name == 0 && attr_form == 0) + break; + + /* Is this the name attribute? */ + if (attr_name == DW_AT_name) + { + char *str; + + /* We found it. Duplicate the string and return. There are + two possible forms: DW_FORM_string and DW_FORM_strp. */ + if (attr_form == DW_FORM_string) + { + str = (char *) die_addr; + } + else if (likely (attr_form == DW_FORM_strp)) + { + Dwarf_Unsigned off; + Dwarf_Signed len; + + if (die->cu->offset_size == 4) + off = read_4ubyte_unaligned (dbg, die_addr); + else + off = read_8ubyte_unaligned (dbg, die_addr); + + /* This is an offset in the .debug_str section. Make sure + it's within range. */ + if (unlikely (dwarf_get_str (dbg, off, &str, &len, error) + != DW_DLV_OK)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + } + else + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + str = strdup (str); + if (str == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + *return_name = str; + return DW_DLV_OK; + } + + /* Skip over the rest of this attribute (if there is any). */ + if (attr_form != 0) + { + size_t len; + + if (unlikely (__libdwarf_form_val_len (dbg, die->cu, attr_form, + die_addr, &len, error) + != DW_DLV_OK)) + return DW_DLV_ERROR; + + die_addr += len; + } + } + + /* No name attribute present. */ + return DW_DLV_NO_ENTRY; +} diff --git a/libdwarf/dwarf_dieoffset.c b/libdwarf/dwarf_dieoffset.c new file mode 100644 index 0000000..2886f9f --- /dev/null +++ b/libdwarf/dwarf_dieoffset.c @@ -0,0 +1,31 @@ +/* Return offset of die in .debug_info section. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_dieoffset (die, return_offset, error) + Dwarf_Die die; + Dwarf_Off *return_offset; + Dwarf_Error *error; +{ + *return_offset = + (die->addr - (Dwarf_Small *) die->cu->dbg->sections[IDX_debug_info].addr); + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_elf_init.c b/libdwarf/dwarf_elf_init.c new file mode 100644 index 0000000..d69d747 --- /dev/null +++ b/libdwarf/dwarf_elf_init.c @@ -0,0 +1,197 @@ +/* Create descriptor from ELF handle for processing file. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include + +#include + + +/* Section names. */ +static const char dwarf_scnnames[IDX_last][17] = +{ + [IDX_debug_info] = ".debug_info", + [IDX_debug_abbrev] = ".debug_abbrev", + [IDX_debug_aranges] = ".debug_aranges", + [IDX_debug_line] = ".debug_line", + [IDX_debug_frame] = ".debug_frame", + [IDX_eh_frame] = ".eh_frame", + [IDX_debug_loc] = ".debug_loc", + [IDX_debug_pubnames] = ".debug_pubnames", + [IDX_debug_str] = ".debug_str", + [IDX_debug_funcnames] = ".debug_funcnames", + [IDX_debug_typenames] = ".debug_typenames", + [IDX_debug_varnames] = ".debug_varnames", + [IDX_debug_weaknames] = ".debug_weaknames", + [IDX_debug_macinfo] = ".debug_macinfo" +}; +#define ndwarf_scnnames (sizeof (dwarf_scnnames) / sizeof (dwarf_scnnames[0])) + + +int +dwarf_elf_init (elf, access, errhand, errarg, dbg, error) + Elf *elf; + Dwarf_Unsigned access; + Dwarf_Handler errhand; + Dwarf_Ptr errarg; + Dwarf_Debug *dbg; + Dwarf_Error *error; +{ + int result = DW_DLV_ERROR; + Dwarf_Debug newdbg; + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + Elf_Scn *scn; + + /* XXX For now nothing but read-only support is available. */ + if (access != DW_DLC_READ) + abort (); + + /* Get the ELF header of the file. We need various pieces of + information from it. */ + ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + { + struct Dwarf_Debug_s tmpdbg; + + tmpdbg.dbg_errhand = errhand; + tmpdbg.dbg_errarg = errarg; + + if (elf_kind (elf) != ELF_K_ELF) + __libdwarf_error (&tmpdbg, error, DW_E_NOELF); + else + __libdwarf_error (&tmpdbg, error, DW_E_GETEHDR_ERROR); + + return result; + } + + /* Allocate and fill the result data structure. */ + newdbg = (Dwarf_Debug) calloc (1, sizeof (struct Dwarf_Debug_s)); + if (newdbg == NULL) + { + struct Dwarf_Debug_s tmpdbg; + + tmpdbg.dbg_errhand = errhand; + tmpdbg.dbg_errarg = errarg; + + __libdwarf_error (&tmpdbg, error, DW_E_NOMEM); + } + else + { + /* We have been able to allocate the memory for the debug handle. */ + newdbg->dbg_errhand = errhand; + newdbg->dbg_errarg = errarg; + newdbg->elf = elf; + if ((BYTE_ORDER == LITTLE_ENDIAN + && ehdr->e_ident[EI_DATA] == ELFDATA2MSB) + || (BYTE_ORDER == BIG_ENDIAN + && ehdr->e_ident[EI_DATA] == ELFDATA2LSB)) + newdbg->other_byte_order = 1; + newdbg->access = access; +#ifdef DWARF_DEBUG + newdbg->memtag = DW_DLA_DEBUG; +#endif + + /* All done. */ + *dbg = newdbg; + result = DW_DLV_OK; + + /* Find out whether the file actually has the necessary DWARF + sections. */ + scn = NULL; + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + const char *scnname; + size_t cnt; + Elf_Data *data; + + /* Get the section header data. */ + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + /* This should never happen. If it does something is + wrong in the libelf library. */ + abort (); + + /* We recognize the DWARF section by their names. This is + not very safe and stable but the best we can do. */ + scnname = elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name); + if (scnname == NULL) + { + /* The section name must be valid. Otherwise is the ELF file + invalid. */ + __libdwarf_error (newdbg, error, DW_E_INVALID_ELF); + break; + } + + /* Recognize the various sections. Most names start with + .debug_. */ + for (cnt = 0; cnt < ndwarf_scnnames; ++cnt) + if (strcmp (scnname, dwarf_scnnames[cnt]) == 0) + break; + + if (cnt < ndwarf_scnnames) + { + /* Found it. Remember where the data is. */ + assert (cnt < IDX_last); + if (unlikely (newdbg->sections[cnt].addr != NULL)) + { + /* A section appears twice. That's bad. */ + __libdwarf_error (newdbg, error, DW_E_INVALID_DWARF); + break; + } + + /* Get the section data. */ + data = elf_getdata (scn, NULL); + if (data != NULL && data->d_size != 0) + { + /* Yep, there is actually data available. */ + newdbg->sections[cnt].addr = data->d_buf; + newdbg->sections[cnt].size = data->d_size; + } + } + } + + if (scn == NULL) + { + /* We looked at all the sections. Now determine whether all + the sections with debugging information we need are there. + + XXX Which sections are absolutely necessary? Add tests + if necessary. For now we require only .debug_info. Hopefully + this is correct. */ + if (newdbg->sections[IDX_debug_info].addr == NULL) + { + __libdwarf_error (newdbg, error, DW_E_NO_DWARF); + result = DW_DLV_NO_ENTRY; + } + else + result = DW_DLV_OK; + } + + if (result != DW_DLV_OK) + /* Something went wrong. */ + free (newdbg); + } + + return result; +} diff --git a/libdwarf/dwarf_errmsg.c b/libdwarf/dwarf_errmsg.c new file mode 100644 index 0000000..1d19f41 --- /dev/null +++ b/libdwarf/dwarf_errmsg.c @@ -0,0 +1,67 @@ +/* Return error message. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +/* Map error values to strings. */ +/* XXX This table should avoid string pointers. Fixing it can wait + until the code is stable. */ +static const char *msgs[] = +{ + [DW_E_NOERROR] = N_("no error"), + [DW_E_INVALID_ACCESS] = N_("invalid access mode"), + [DW_E_NO_REGFILE] = N_("no regular file"), + [DW_E_IO_ERROR] = N_("I/O error"), + [DW_E_NOMEM] = N_("out of memory"), + [DW_E_NOELF] = N_("file is not an ELF file"), + [DW_E_GETEHDR_ERROR] = N_("getehdr call failed"), + [DW_E_INVALID_ELF] = N_("invalid ELF file"), + [DW_E_INVALID_DWARF] = N_("invalid DWARF debugging information"), + [DW_E_NO_DWARF] = N_("no DWARF debugging information available"), + [DW_E_NO_CU] = N_("no compilation unit"), + [DW_E_1ST_NO_CU] = N_("first die is no compile unit die"), + [DW_E_INVALID_OFFSET] = N_("invalid offset"), + [DW_E_INVALID_REFERENCE] = N_("invalid reference form"), + [DW_E_NO_REFERENCE] = N_("no reference form"), + [DW_E_NO_ADDR] = N_("no address form"), + [DW_E_NO_FLAG] = N_("no flag form"), + [DW_E_NO_CONSTANT] = N_("no constant form"), + [DW_E_NO_BLOCK] = N_("no block form"), + [DW_E_NO_STRING] = N_("no string form"), + [DW_E_WRONG_ATTR] = N_("wrong attribute code"), + [DW_E_NO_DATA] = N_("no data form"), + [DW_E_NO_DEBUG_LINE] = N_(".debug_line section missing"), + [DW_E_VERSION_ERROR] = N_("version mismatch"), + [DW_E_INVALID_DIR_IDX] = N_("invalid directory index"), + [DW_E_INVALID_ADDR] = N_("invalid address"), + [DW_E_NO_ABBR] = N_("no valid abbreviation"), +}; +#define nmsgs (sizeof (msgs) / sizeof (msgs[0])) + + +const char * +dwarf_errmsg (Dwarf_Error error) +{ + const char *retval = N_("unknown error"); + + if (error->de_error < nmsgs) + retval = msgs[error->de_error]; + + return _(retval); +} diff --git a/libdwarf/dwarf_errno.c b/libdwarf/dwarf_errno.c new file mode 100644 index 0000000..4d659e0 --- /dev/null +++ b/libdwarf/dwarf_errno.c @@ -0,0 +1,26 @@ +/* Return error value. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +Dwarf_Unsigned +dwarf_errno (Dwarf_Error error) +{ + return error->de_error; +} diff --git a/libdwarf/dwarf_error.c b/libdwarf/dwarf_error.c new file mode 100644 index 0000000..16c0c45 --- /dev/null +++ b/libdwarf/dwarf_error.c @@ -0,0 +1,52 @@ +/* Handle error. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include +#include + + +void +internal_function +__libdwarf_error (Dwarf_Debug dbg, Dwarf_Error *error, int errval) +{ + /* Allocate memory for the error structure given to the user. */ + Dwarf_Error errmem = (Dwarf_Error) malloc (sizeof (*error)); + /* We cannot report an error if we cannot allocate memory. */ + if (errmem == NULL) + return; + + errmem->de_error = errval; + + /* DBG must never be NULL. */ + assert (dbg != NULL); + + if (error != NULL) + /* If the user provides an ERROR parameter we have to use it. */ + *error = errmem; + else if (likely (dbg->dbg_errhand != NULL)) + /* Use the handler the user provided if possible. */ + dbg->dbg_errhand (error, dbg->dbg_errarg); + else + { + assert (! "error and dbg->dbg_errhand == NULL"); + abort (); + } +} diff --git a/libdwarf/dwarf_find_macro_value_start.c b/libdwarf/dwarf_find_macro_value_start.c new file mode 100644 index 0000000..fdaaf72 --- /dev/null +++ b/libdwarf/dwarf_find_macro_value_start.c @@ -0,0 +1,45 @@ +/* Find start of macro value. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +char * +dwarf_find_macro_value_start (macro_string) + char *macro_string; +{ + int with_paren = 0; + + while (*macro_string != '\0') + { + if (*macro_string == '(') + with_paren = 1; + else if (*macro_string == ')') + /* After the closing parenthesis there must be a space. */ + return macro_string + 2; + else if (*macro_string == ' ' && ! with_paren) + /* Not a function like macro and we found the space terminating + the name. */ + return macro_string + 1; + + ++macro_string; + } + + /* The macro has no value. Return a pointer to the NUL byte. */ + return macro_string; +} diff --git a/libdwarf/dwarf_finish.c b/libdwarf/dwarf_finish.c new file mode 100644 index 0000000..f689e79 --- /dev/null +++ b/libdwarf/dwarf_finish.c @@ -0,0 +1,40 @@ +/* Free resources allocated for debug handle. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_finish (dbg, error) + Dwarf_Debug dbg; + Dwarf_Error *error; +{ + if (dbg == NULL) + return DW_DLV_ERROR; + +#ifdef DWARF_DEBUG + if (dbg->memtag != DW_DLA_DEBUG) + return DW_DLV_ERROR; +#endif + + free (dbg); + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_form.c b/libdwarf/dwarf_form.c new file mode 100644 index 0000000..9adf3ed --- /dev/null +++ b/libdwarf/dwarf_form.c @@ -0,0 +1,107 @@ +/* Helper functions for form handling. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +int +internal_function +__libdwarf_form_val_len (Dwarf_Debug dbg, Dwarf_CU_Info cu, Dwarf_Word form, + Dwarf_Small *valp, size_t *len, Dwarf_Error *error) +{ + Dwarf_Small *saved; + Dwarf_Word u128; + + switch (form) + { + case DW_FORM_addr: + case DW_FORM_strp: + case DW_FORM_ref_addr: + *len = cu->address_size; + break; + + case DW_FORM_block1: + *len = *valp + 1; + break; + + case DW_FORM_block2: + *len = read_2ubyte_unaligned (dbg, valp) + 2; + break; + + case DW_FORM_block4: + *len = read_4ubyte_unaligned (dbg, valp) + 4; + break; + + case DW_FORM_block: + saved = valp; + get_uleb128 (u128, valp); + *len = u128 + (valp - saved); + break; + + case DW_FORM_ref1: + case DW_FORM_data1: + case DW_FORM_flag: + *len = 1; + break; + + case DW_FORM_data2: + case DW_FORM_ref2: + *len = 2; + break; + + case DW_FORM_data4: + case DW_FORM_ref4: + *len = 4; + break; + + case DW_FORM_data8: + case DW_FORM_ref8: + *len = 8; + break; + + case DW_FORM_string: + *len = strlen ((char *) valp) + 1; + break; + + case DW_FORM_sdata: + case DW_FORM_udata: + case DW_FORM_ref_udata: + saved = valp; + get_uleb128 (u128, valp); + *len = valp - saved; + break; + + case DW_FORM_indirect: + saved = valp; + get_uleb128 (u128, valp); + if (__libdwarf_form_val_len (dbg, cu, u128, valp, len, error) + != DW_DLV_OK) + return DW_DLV_ERROR; + *len += valp - saved; + break; + + default: + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_formaddr.c b/libdwarf/dwarf_formaddr.c new file mode 100644 index 0000000..148508f --- /dev/null +++ b/libdwarf/dwarf_formaddr.c @@ -0,0 +1,42 @@ +/* Return address represented by attribute. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_formaddr (attr, return_addr, error) + Dwarf_Attribute attr; + Dwarf_Addr *return_addr; + Dwarf_Error *error; +{ + if (unlikely (attr->form != DW_FORM_addr)) + { + __libdwarf_error (attr->cu->dbg, error, DW_E_NO_ADDR); + return DW_DLV_ERROR; + } + + if (attr->cu->address_size == 4) + *return_addr = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + else + *return_addr = read_8ubyte_unaligned (attr->cu->dbg, attr->valp); + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_formblock.c b/libdwarf/dwarf_formblock.c new file mode 100644 index 0000000..44606ed --- /dev/null +++ b/libdwarf/dwarf_formblock.c @@ -0,0 +1,76 @@ +/* Return block of uninterpreted data represented by attribute. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +int +dwarf_formblock (attr, return_block, error) + Dwarf_Attribute attr; + Dwarf_Block **return_block; + Dwarf_Error *error; +{ + Dwarf_Small *attrp = attr->valp; + Dwarf_Unsigned len; + Dwarf_Ptr *data; + Dwarf_Block *result; + + switch (attr->form) + { + case DW_FORM_block1: + len = *attrp; + data = (Dwarf_Ptr) (attrp + 1); + break; + + case DW_FORM_block2: + len = read_2ubyte_unaligned (attr->cu->dbg, attrp); + data = (Dwarf_Ptr) (attrp + 2); + break; + + case DW_FORM_block4: + len = read_4ubyte_unaligned (attr->cu->dbg, attrp); + data = (Dwarf_Ptr) (attrp + 2); + break; + + case DW_FORM_block: + get_uleb128 (len, attrp); + data = (Dwarf_Ptr) attrp; + break; + + default: + __libdwarf_error (attr->cu->dbg, error, DW_E_NO_BLOCK); + return DW_DLV_ERROR; + } + + /* Allocate memory for the result. */ + result = (Dwarf_Block *) malloc (sizeof (Dwarf_Block)); + if (result == NULL) + { + __libdwarf_error (attr->cu->dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + result->bl_len = len; + result->bl_data = data; + + *return_block = result; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_formflag.c b/libdwarf/dwarf_formflag.c new file mode 100644 index 0000000..32a98fd --- /dev/null +++ b/libdwarf/dwarf_formflag.c @@ -0,0 +1,39 @@ +/* Return flag represented by attribute. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_formflag (attr, return_bool, error) + Dwarf_Attribute attr; + Dwarf_Bool *return_bool; + Dwarf_Error *error; +{ + if (unlikely (attr->form != DW_FORM_flag)) + { + __libdwarf_error (attr->cu->dbg, error, DW_E_NO_FLAG); + return DW_DLV_ERROR; + } + + *return_bool = attr->valp != 0; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_formref.c b/libdwarf/dwarf_formref.c new file mode 100644 index 0000000..4ae353a --- /dev/null +++ b/libdwarf/dwarf_formref.c @@ -0,0 +1,67 @@ +/* Return compile-unit relative offset of reference associated with form. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_formref (attr, return_offset, error) + Dwarf_Attribute attr; + Dwarf_Off *return_offset; + Dwarf_Error *error; +{ + switch (attr->form) + { + case DW_FORM_ref1: + *return_offset = *attr->valp; + break; + + case DW_FORM_ref2: + *return_offset = read_2ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_ref4: + *return_offset = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_ref8: + *return_offset = read_8ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_ref_udata: + { + Dwarf_Off off; + Dwarf_Small *attrp = attr->valp; + get_uleb128 (off, attrp); + *return_offset = off; + } + break; + + case DW_FORM_ref_addr: + __libdwarf_error (attr->cu->dbg, error, DW_E_INVALID_REFERENCE); + return DW_DLV_ERROR; + + default: + __libdwarf_error (attr->cu->dbg, error, DW_E_NO_REFERENCE); + return DW_DLV_ERROR; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_formsdata.c b/libdwarf/dwarf_formsdata.c new file mode 100644 index 0000000..8024e76 --- /dev/null +++ b/libdwarf/dwarf_formsdata.c @@ -0,0 +1,72 @@ +/* Return signed constant represented by attribute. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_formsdata (attr, return_sval, error) + Dwarf_Attribute attr; + Dwarf_Signed *return_sval; + Dwarf_Error *error; +{ + Dwarf_Signed u128; + + switch (attr->form) + { + case DW_FORM_data1: + *return_sval = *attr->valp; + break; + + case DW_FORM_data2: + *return_sval = read_2ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_data4: + *return_sval = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_data8: + *return_sval = read_8ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_sdata: + { + Dwarf_Small *attrp = attr->valp; + get_sleb128 (u128, attrp); + *return_sval = u128; + } + break; + + case DW_FORM_udata: + { + Dwarf_Small *attrp = attr->valp; + get_uleb128 (u128, attrp); + *return_sval = u128; + } + break; + + default: + __libdwarf_error (attr->cu->dbg, error, DW_E_NO_CONSTANT); + return DW_DLV_ERROR; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_formstring.c b/libdwarf/dwarf_formstring.c new file mode 100644 index 0000000..205a946 --- /dev/null +++ b/libdwarf/dwarf_formstring.c @@ -0,0 +1,51 @@ +/* Return string represented by attribute. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +int +dwarf_formstring (attr, return_string, error) + Dwarf_Attribute attr; + char **return_string; + Dwarf_Error *error; +{ + char *result; + + if (attr->form == DW_FORM_string) + result = (char *) attr->valp; + else if (likely (attr->form == DW_FORM_strp)) + { + Dwarf_Unsigned offset; + + offset = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + + result = (char *) attr->cu->dbg->sections[IDX_debug_str].addr + offset; + } + else + { + __libdwarf_error (attr->cu->dbg, error, DW_E_NO_STRING); + return DW_DLV_ERROR; + } + + *return_string = result; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_formudata.c b/libdwarf/dwarf_formudata.c new file mode 100644 index 0000000..35e133c --- /dev/null +++ b/libdwarf/dwarf_formudata.c @@ -0,0 +1,72 @@ +/* Return unsigned constant represented by attribute. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_formudata (attr, return_uval, error) + Dwarf_Attribute attr; + Dwarf_Unsigned *return_uval; + Dwarf_Error *error; +{ + Dwarf_Unsigned u128; + + switch (attr->form) + { + case DW_FORM_data1: + *return_uval = *attr->valp; + break; + + case DW_FORM_data2: + *return_uval = read_2ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_data4: + *return_uval = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_data8: + *return_uval = read_8ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + case DW_FORM_sdata: + { + Dwarf_Small *attrp = attr->valp; + get_sleb128 (u128, attrp); + *return_uval = u128; + } + break; + + case DW_FORM_udata: + { + Dwarf_Small *attrp = attr->valp; + get_uleb128 (u128, attrp); + *return_uval = u128; + } + break; + + default: + __libdwarf_error (attr->cu->dbg, error, DW_E_NO_CONSTANT); + return DW_DLV_ERROR; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_abbrev.c b/libdwarf/dwarf_get_abbrev.c new file mode 100644 index 0000000..0295f9b --- /dev/null +++ b/libdwarf/dwarf_get_abbrev.c @@ -0,0 +1,111 @@ +/* Get abbreviation record. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +int +dwarf_get_abbrev (dbg, offset, return_abbrev, length, attr_count, error) + Dwarf_Debug dbg; + Dwarf_Unsigned offset; + Dwarf_Abbrev *return_abbrev; + Dwarf_Unsigned *length; + Dwarf_Unsigned *attr_count; + Dwarf_Error *error; +{ + Dwarf_Abbrev ent; + Dwarf_Small *abbrevp; + Dwarf_Small *start_abbrevp; + + /* Address in memory. */ + abbrevp = (Dwarf_Small *) dbg->sections[IDX_debug_abbrev].addr + offset; + + /* Remember where we started. */ + start_abbrevp = abbrevp; + + if (*abbrevp != '\0') + { + /* 7.5.3 Abbreviations Tables + + [...] Each declaration begins with an unsigned LEB128 number + representing the abbreviation code itself. [...] The + abbreviation code is followed by another unsigned LEB128 + number that encodes the entry's tag. [...] + + [...] Following the tag encoding is a 1-byte value that + determines whether a debugging information entry using this + abbreviation has child entries or not. [...] + + [...] Finally, the child encoding is followed by a series of + attribute specifications. Each attribute specification + consists of two parts. The first part is an unsigned LEB128 + number representing the attribute's name. The second part is + an unsigned LEB128 number representing the attribute s form. */ + Dwarf_Word abbrev_code; + Dwarf_Word abbrev_tag; + Dwarf_Word attr_name; + Dwarf_Word attr_form; + Dwarf_Unsigned attrcnt; + + /* XXX We have no tests for crossing the section boundary here. + We should compare with dbg->sections[IDX_debug_abbrev].size. */ + get_uleb128 (abbrev_code, abbrevp); + get_uleb128 (abbrev_tag, abbrevp); + + /* Get memory for the result. */ + ent = (Dwarf_Abbrev) malloc (sizeof (struct Dwarf_Abbrev_s)); + if (ent == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + ent->code = abbrev_code; + ent->tag = abbrev_tag; + ent->has_children = *abbrevp++ == DW_CHILDREN_yes; + ent->attrp = abbrevp; + ent->offset = offset; + + /* Skip over all the attributes. */ + attrcnt = 0; + do + { + get_uleb128 (attr_name, abbrevp); + get_uleb128 (attr_form, abbrevp); + } + while (attr_name != 0 && attr_form != 0 && ++attrcnt); + + /* Number of attributes. */ + *attr_count = ent->attrcnt = attrcnt; + + /* Store the actual abbreviation record. */ + *return_abbrev = ent; + } + else + /* Read over the NUL byte. */ + ++abbrevp; + + /* Length of the entry. */ + *length = abbrevp - start_abbrevp; + + /* If we come here we haven't found anything. */ + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_abbrev_children_flag.c b/libdwarf/dwarf_get_abbrev_children_flag.c new file mode 100644 index 0000000..079c85a --- /dev/null +++ b/libdwarf/dwarf_get_abbrev_children_flag.c @@ -0,0 +1,29 @@ +/* Get children flag of abbreviation record. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwarfP.h" + + +int dwarf_get_abbrev_children_flag (abbrev, return_flag, error) + Dwarf_Abbrev abbrev; + Dwarf_Signed *return_flag; + Dwarf_Error *error; +{ + *return_flag = abbrev->has_children; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_abbrev_code.c b/libdwarf/dwarf_get_abbrev_code.c new file mode 100644 index 0000000..08ecb43 --- /dev/null +++ b/libdwarf/dwarf_get_abbrev_code.c @@ -0,0 +1,29 @@ +/* Get code of abbreviation record. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwarfP.h" + + +int dwarf_get_abbrev_code (abbrev, return_code, error) + Dwarf_Abbrev abbrev; + Dwarf_Unsigned *return_code; + Dwarf_Error *error; +{ + *return_code = abbrev->code; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_abbrev_entry.c b/libdwarf/dwarf_get_abbrev_entry.c new file mode 100644 index 0000000..4deccd0 --- /dev/null +++ b/libdwarf/dwarf_get_abbrev_entry.c @@ -0,0 +1,63 @@ +/* Get attribute from abbreviation record. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +int +dwarf_get_abbrev_entry (abbrev, idx, attr_num, form, offset, error) + Dwarf_Abbrev abbrev; + Dwarf_Signed idx; + Dwarf_Half *attr_num; + Dwarf_Signed *form; + Dwarf_Off *offset; + Dwarf_Error *error; +{ + Dwarf_Small *attrp; + Dwarf_Small *start_attrp; + Dwarf_Word attr_name; + Dwarf_Word attr_form; + + if (idx < 0) + return DW_DLV_NO_ENTRY; + + /* Address in memory. */ + attrp = abbrev->attrp; + + /* Read the attributes, skip over the ones we don't want. */ + do + { + start_attrp = attrp; + + get_uleb128 (attr_name, attrp); + get_uleb128 (attr_form, attrp); + + if (attr_name == 0 || attr_form == 0) + return DW_DLV_NO_ENTRY; + } + while (idx-- > 0); + + *attr_num = attr_name; + *form = attr_form; + *offset = (start_attrp - abbrev->attrp) + abbrev->offset; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_abbrev_tag.c b/libdwarf/dwarf_get_abbrev_tag.c new file mode 100644 index 0000000..b3f9fd1 --- /dev/null +++ b/libdwarf/dwarf_get_abbrev_tag.c @@ -0,0 +1,29 @@ +/* Get tag of abbreviation record. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwarfP.h" + + +int dwarf_get_abbrev_tag (abbrev, return_tag, error) + Dwarf_Abbrev abbrev; + Dwarf_Half *return_tag; + Dwarf_Error *error; +{ + *return_tag = abbrev->tag; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_address_size.c b/libdwarf/dwarf_get_address_size.c new file mode 100644 index 0000000..fe5234c --- /dev/null +++ b/libdwarf/dwarf_get_address_size.c @@ -0,0 +1,30 @@ +/* Return address size. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_get_address_size (dbg, addr_size, error) + Dwarf_Debug dbg; + Dwarf_Half *addr_size; + Dwarf_Error *error; +{ + *addr_size = elf_getident (dbg->elf, NULL)[EI_CLASS] == ELFCLASS64 ? 8 : 4; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_arange.c b/libdwarf/dwarf_get_arange.c new file mode 100644 index 0000000..02df19d --- /dev/null +++ b/libdwarf/dwarf_get_arange.c @@ -0,0 +1,41 @@ +/* Find matching range for address. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_get_arange (aranges, arange_count, address, return_arange, error) + Dwarf_Arange *aranges; + Dwarf_Unsigned arange_count; + Dwarf_Addr address; + Dwarf_Arange *return_arange; + Dwarf_Error *error; +{ + Dwarf_Unsigned cnt; + + for (cnt = 0; cnt < arange_count; ++cnt) + if (aranges[cnt]->address <= address + && address < aranges[cnt]->address + aranges[cnt]->length) + { + *return_arange = aranges[cnt]; + return DW_DLV_OK; + } + + return DW_DLV_NO_ENTRY; +} diff --git a/libdwarf/dwarf_get_arange_info.c b/libdwarf/dwarf_get_arange_info.c new file mode 100644 index 0000000..4d37e08 --- /dev/null +++ b/libdwarf/dwarf_get_arange_info.c @@ -0,0 +1,48 @@ +/* Return start, length, and CU DIE offset of range. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_get_arange_info (arange, start, length, cu_die_offset, error) + Dwarf_Arange arange; + Dwarf_Addr *start; + Dwarf_Unsigned *length; + Dwarf_Off *cu_die_offset; + Dwarf_Error *error; +{ + Dwarf_Small *cu_header; + unsigned int offset_size; + + *start = arange->address; + *length = arange->length; + + /* Determine the size of the CU header. */ + cu_header = + ((Dwarf_Small *) arange->info->dbg->sections[IDX_debug_info].addr + + arange->info->offset); + if (read_4ubyte_unaligned_noncvt (cu_header) == 0xffffffff) + offset_size = 8; + else + offset_size = 4; + + *cu_die_offset = arange->info->offset + 3 * offset_size - 4 + 3; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_aranges.c b/libdwarf/dwarf_get_aranges.c new file mode 100644 index 0000000..b8cabb0 --- /dev/null +++ b/libdwarf/dwarf_get_aranges.c @@ -0,0 +1,186 @@ +/* Return list address ranges. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +struct arangelist +{ + Dwarf_Arange arange; + struct arangelist *next; +}; + + +int +dwarf_get_aranges (dbg, aranges, return_count, error) + Dwarf_Debug dbg; + Dwarf_Arange **aranges; + Dwarf_Signed *return_count; + Dwarf_Error *error; +{ + Dwarf_Small *readp; + Dwarf_Small *readendp; + struct arangelist *arangelist = NULL; + unsigned int narangelist = 0; + + if (dbg->sections[IDX_debug_aranges].addr == NULL) + return DW_DLV_NO_ENTRY; + + readp = (Dwarf_Small *) dbg->sections[IDX_debug_aranges].addr; + readendp = readp + dbg->sections[IDX_debug_aranges].size; + + while (readp < readendp) + { + Dwarf_Small *hdrstart = readp; + Dwarf_Unsigned length; + unsigned int length_bytes; + unsigned int version; + Dwarf_Unsigned offset; + unsigned int address_size; + unsigned int segment_size; + Dwarf_Arange_Info arange_info; + + /* Each entry starts with a header: + + 1. A 4-byte or 12-byte length containing the length of the + set of entries for this compilation unit, not including the + length field itself. [...] + + 2. A 2-byte version identifier containing the value 2 for + DWARF Version 2.1. + + 3. A 4-byte or 8-byte offset into the .debug_info section. [...] + + 4. A 1-byte unsigned integer containing the size in bytes of + an address (or the offset portion of an address for segmented + addressing) on the target system. + + 5. A 1-byte unsigned integer containing the size in bytes of + a segment descriptor on the target system. */ + length = read_4ubyte_unaligned (dbg, readp); + readp += 4; + length_bytes = 4; + if (length == 0xffffffff) + { + length = read_8ubyte_unaligned (dbg, readp); + readp += 8; + length_bytes = 8; + } + + version = read_2ubyte_unaligned (dbg, readp); + readp += 2; + if (version != 2) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + if (length_bytes == 4) + offset = read_4ubyte_unaligned (dbg, readp); + else + offset = read_8ubyte_unaligned (dbg, readp); + readp += length_bytes; + + address_size = *readp++; + segment_size = *readp++; + + /* Round the address to the next multiple of 2*address_size. */ + readp += ((2 * address_size - ((readp - hdrstart) % (2 * address_size))) + % (2 * address_size)); + + arange_info = + (Dwarf_Arange_Info) malloc (sizeof (struct Dwarf_Arange_s)); + if (arange_info == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + arange_info->dbg = dbg; + arange_info->offset = offset; + + while (1) + { + Dwarf_Unsigned range_address; + Dwarf_Unsigned range_length; + struct arangelist *new_arange; + + if (address_size == 4) + { + range_address = read_4ubyte_unaligned (dbg, readp); + readp += 4; + range_length = read_4ubyte_unaligned (dbg, readp); + readp += 4; + } + else if (likely (address_size == 8)) + { + range_address = read_8ubyte_unaligned (dbg, readp); + readp += 8; + range_length = read_8ubyte_unaligned (dbg, readp); + readp += 8; + } + else + abort (); + + /* Two zero values mark the end. */ + if (range_address == 0 && range_length == 0) + break; + + new_arange = + (struct arangelist *) alloca (sizeof (struct arangelist)); + new_arange->arange = + (Dwarf_Arange) malloc (sizeof (struct Dwarf_Arange_s)); + if (new_arange->arange == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + new_arange->arange->address = range_address; + new_arange->arange->length = range_length; + new_arange->arange->info = arange_info; + + new_arange->next = arangelist; + arangelist = new_arange; + ++narangelist; + } + } + + if (narangelist == 0) + return DW_DLV_NO_ENTRY; + + /* Allocate the array for the result. */ + *return_count = narangelist; + *aranges = (Dwarf_Arange *) malloc (narangelist + * sizeof (struct Dwarf_Arange_s)); + if (*aranges == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + while (narangelist-- > 0) + { + (*aranges)[narangelist] = arangelist->arange; + arangelist = arangelist->next; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_cie_info.c b/libdwarf/dwarf_get_cie_info.c new file mode 100644 index 0000000..029d9c9 --- /dev/null +++ b/libdwarf/dwarf_get_cie_info.c @@ -0,0 +1,53 @@ +/* Get information about CIE. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_get_cie_info (cie, bytes_in_cie, version, augmenter, + code_alignment_factor, data_alignment_factor, + return_address_register, initial_instructions, + initial_instructions_length, error) + Dwarf_Cie cie; + Dwarf_Unsigned *bytes_in_cie; + Dwarf_Small *version; + char **augmenter; + Dwarf_Unsigned *code_alignment_factor; + Dwarf_Signed *data_alignment_factor; + Dwarf_Half *return_address_register; + Dwarf_Ptr *initial_instructions; + Dwarf_Unsigned *initial_instructions_length; + Dwarf_Error *error; +{ + *bytes_in_cie = cie->length; + + *version = CIE_VERSION; + + *augmenter = cie->augmentation; + + *code_alignment_factor = cie->code_alignment_factor; + *data_alignment_factor = cie->data_alignment_factor; + + *return_address_register = cie->return_address_register; + + *initial_instructions = cie->initial_instructions; + *initial_instructions_length = cie->initial_instructions_length; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_cie_of_fde.c b/libdwarf/dwarf_get_cie_of_fde.c new file mode 100644 index 0000000..49718e9 --- /dev/null +++ b/libdwarf/dwarf_get_cie_of_fde.c @@ -0,0 +1,30 @@ +/* Get CIE of FDE. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_get_cie_of_fde (fde, return_cie, error) + Dwarf_Fde fde; + Dwarf_Cie *return_cie; + Dwarf_Error *error; +{ + *return_cie = fde->cie; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_cu_die_offset.c b/libdwarf/dwarf_get_cu_die_offset.c new file mode 100644 index 0000000..a358d5c --- /dev/null +++ b/libdwarf/dwarf_get_cu_die_offset.c @@ -0,0 +1,43 @@ +/* Return offset of compile unit DIE containing the range. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_get_cu_die_offset (arange, return_offset, error) + Dwarf_Arange arange; + Dwarf_Off *return_offset; + Dwarf_Error *error; +{ + Dwarf_Small *cu_header; + unsigned int offset_size; + + /* Determine the size of the CU header. */ + cu_header = + ((Dwarf_Small *) arange->info->dbg->sections[IDX_debug_info].addr + + arange->info->offset); + if (read_4ubyte_unaligned_noncvt (cu_header) == 0xffffffff) + offset_size = 8; + else + offset_size = 4; + + *return_offset = arange->info->offset + 3 * offset_size - 4 + 3; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_elf.c b/libdwarf/dwarf_get_elf.c new file mode 100644 index 0000000..9313e95 --- /dev/null +++ b/libdwarf/dwarf_get_elf.c @@ -0,0 +1,33 @@ +/* Return ELF handle. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_get_elf_init (dbg, elf, error) + Dwarf_Debug dbg; + Elf **elf; + Dwarf_Error *error; +{ + if (dbg == NULL) + return DW_DLV_ERROR; + + *elf = dbg->elf; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_fde_at_pc.c b/libdwarf/dwarf_get_fde_at_pc.c new file mode 100644 index 0000000..fee2efd --- /dev/null +++ b/libdwarf/dwarf_get_fde_at_pc.c @@ -0,0 +1,57 @@ +/* Find FDE for given address. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwarfP.h" + + +int +dwarf_get_fde_at_pc (fde_data, pc_of_interest, returned_fde, lopc, hipc, error) + Dwarf_Fde *fde_data; + Dwarf_Addr pc_of_interest; + Dwarf_Fde *returned_fde; + Dwarf_Addr *lopc; + Dwarf_Addr *hipc; + Dwarf_Error *error; +{ + Dwarf_Debug dbg = fde_data[0]->cie->dbg; + int low = 0; + int high = dbg->fde_cnt - 1; + + /* Since the FDEs are sorted by their addresses and since there can + potentially be many FDEs we better use binary search. */ + while (low <= high) + { + int curidx = (low + high) / 2; + Dwarf_Fde cur = fde_data[curidx]; + + if (pc_of_interest < cur->initial_location) + high = curidx - 1; + else if (likely (cur->initial_location + cur->address_range + <= pc_of_interest)) + low = curidx + 1; + else + { + *returned_fde = cur; + *lopc = cur->initial_location; + *hipc = cur->initial_location + cur->address_range - 1; + return DW_DLV_OK; + } + } + + return DW_DLV_NO_ENTRY; +} diff --git a/libdwarf/dwarf_get_fde_instr_bytes.c b/libdwarf/dwarf_get_fde_instr_bytes.c new file mode 100644 index 0000000..74a5388 --- /dev/null +++ b/libdwarf/dwarf_get_fde_instr_bytes.c @@ -0,0 +1,33 @@ +/* Get frame construction instructions of FDE. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_get_fde_instr_bytes (fde, outinstrs, outlen, error) + Dwarf_Fde fde; + Dwarf_Ptr *outinstrs; + Dwarf_Unsigned *outlen; + Dwarf_Error *error; +{ + *outinstrs = fde->instructions; + *outlen = fde->instructions_length; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_fde_list_eh.c b/libdwarf/dwarf_get_fde_list_eh.c new file mode 100644 index 0000000..bcda71b --- /dev/null +++ b/libdwarf/dwarf_get_fde_list_eh.c @@ -0,0 +1,363 @@ +/* Get frame descriptions. GCC version using .eh_frame. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +struct cielist +{ + Dwarf_Cie cie; + struct cielist *next; +}; + + +struct fdelist +{ + Dwarf_Fde fde; + Dwarf_Small *cie_id_ptr; + struct fdelist *next; +}; + + +int +dwarf_get_fde_list_eh (dbg, cie_data, cie_element_count, fde_data, + fde_element_count, error) + Dwarf_Debug dbg; + Dwarf_Cie **cie_data; + Dwarf_Signed *cie_element_count; + Dwarf_Fde **fde_data; + Dwarf_Signed *fde_element_count; + Dwarf_Error *error; +{ + Dwarf_Small *readp; + Dwarf_Small *readendp; + struct cielist *cielist = NULL; + struct cielist *copy_cielist; + unsigned int ncielist = 0; + struct fdelist *fdelist = NULL; + unsigned int nfdelist = 0; + + if (dbg->sections[IDX_eh_frame].addr == NULL) + return DW_DLV_NO_ENTRY; + + readp = (Dwarf_Small *) dbg->sections[IDX_eh_frame].addr; + readendp = readp + dbg->sections[IDX_eh_frame].size; + + while (readp < readendp) + { + /* Each CIE contains the following: + + 1. CIE_length (initial length) + + A constant that gives the number of bytes of the CIE + structure, not including the length field, itself [...]. + + 2. CIE_id + + A constant that is used to distinguish CIEs from FDEs. + + 3. version (ubyte) [...] + + 4. augmentation (array of ubyte) + + A null-terminated string that identifies the augmentation to + this CIE or to the FDEs that use it. + + 5. code_alignment_factor (unsigned LEB128) + + A constant that is factored out of all advance location + instructions (see below). + + 6. data_alignment_factor (signed LEB128) + + A constant that is factored out of all offset instructions + [...]. + + 7. return_address_register (ubyte) + + A constant that indicates which column in the rule table + represents the return address of the function. + + 8. initial_instructions (array of ubyte) [...] */ + Dwarf_Small *fde_cie_start; + Dwarf_Small *readstartp; + Dwarf_Small *cie_id_ptr; + Dwarf_Unsigned length; + unsigned int address_size; + Dwarf_Unsigned start_offset; + Dwarf_Unsigned cie_id; + + /* Remember where this entry started. */ + fde_cie_start = readp; + start_offset = (readp + - (Dwarf_Small *) dbg->sections[IDX_eh_frame].addr); + + length = read_4ubyte_unaligned (dbg, readp); + address_size = 4; + readp += 4; + if (length == 0xffffffff) + { + length = read_8ubyte_unaligned (dbg, readp); + readp += 8; + address_size = 8; + } + readstartp = readp; + + /* Requirement from the DWARF specification. */ + if (unlikely (length % address_size != 0)) + { + /* XXX Free resources. */ + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* No more entries. */ + if (length == 0) + break; + + cie_id_ptr = readp; + if (address_size == 4) + { + cie_id = read_4sbyte_unaligned (dbg, readp); + readp += 4; + } + else + { + cie_id = read_8sbyte_unaligned (dbg, readp); + readp += 8; + } + + /* Now we can distinguish between CIEs and FDEs. gcc uses 0 to + signal the record is a CIE. */ + if (cie_id == 0) + { + char *augmentation; + Dwarf_Unsigned code_alignment_factor; + Dwarf_Signed data_alignment_factor; + Dwarf_Small *initial_instructions; + Dwarf_Small return_address_register; + struct cielist *new_cie; + + if (unlikely (*readp++ != CIE_VERSION)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + augmentation = (char *) readp; + readp += strlen (augmentation) + 1; + + if (strcmp (augmentation, "") == 0) + { + get_uleb128 (code_alignment_factor, readp); + get_sleb128 (data_alignment_factor, readp); + return_address_register = *readp++; + initial_instructions = readp; + } + else if (strcmp (augmentation, "eh") == 0) + { + /* GCC exception handling. It has an extra field next + which is the address of a exception table. We ignore + this value since it's only used at runtime by the + exception handling. */ + readp += address_size; + + /* Now the standard fields. */ + get_uleb128 (code_alignment_factor, readp); + get_sleb128 (data_alignment_factor, readp); + return_address_register = *readp++; + initial_instructions = readp; + } + else + { + /* We don't know this augmentation. Skip the rest. The + specification says that nothing after the augmentation + string is usable. */ + code_alignment_factor = 0; + data_alignment_factor = 0; + return_address_register = 0; + initial_instructions = NULL; + } + + /* Go to the next record. */ + readp = readstartp + length; + + /* Create the new CIE record. */ + new_cie = (struct cielist *) alloca (sizeof (struct cielist)); + new_cie->cie = (Dwarf_Cie) malloc (sizeof (struct Dwarf_Cie_s)); + if (new_cie->cie == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + new_cie->cie->dbg = dbg; + new_cie->cie->length = length; + new_cie->cie->augmentation = augmentation; + new_cie->cie->code_alignment_factor = code_alignment_factor; + new_cie->cie->data_alignment_factor = data_alignment_factor; + new_cie->cie->return_address_register = return_address_register; + new_cie->cie->initial_instructions = initial_instructions; + new_cie->cie->initial_instructions_length = + readp - initial_instructions; + + new_cie->cie->offset = start_offset; + new_cie->cie->index = ncielist; + new_cie->next = cielist; + cielist = new_cie; + ++ncielist; + } + else + { + Dwarf_Addr initial_location; + Dwarf_Unsigned address_range; + Dwarf_Small *instructions; + struct fdelist *new_fde; + struct cielist *cie; + + if (address_size == 4) + { + initial_location = read_4ubyte_unaligned (dbg, readp); + readp += 4; + address_range = read_4ubyte_unaligned (dbg, readp); + readp += 4; + } + else + { + initial_location = read_8ubyte_unaligned (dbg, readp); + readp += 8; + address_range = read_8ubyte_unaligned (dbg, readp); + readp += 8; + } + + instructions = readp; + + /* Go to the next record. */ + readp = readstartp + length; + + /* Create the new FDE record. */ + new_fde = (struct fdelist *) alloca (sizeof (struct fdelist)); + new_fde->fde = (Dwarf_Fde) malloc (sizeof (struct Dwarf_Fde_s)); + if (new_fde->fde == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + new_fde->fde->initial_location = initial_location; + new_fde->fde->address_range = address_range; + new_fde->fde->instructions = instructions; + new_fde->fde->instructions_length = readp - instructions; + new_fde->fde->fde_bytes = fde_cie_start; + new_fde->fde->fde_byte_length = readstartp + length - fde_cie_start; + new_fde->fde->cie = NULL; + new_fde->cie_id_ptr = cie_id_ptr; + + for (cie = cielist; cie != NULL; cie = cie->next) + /* This test takes the non-standard way of using the CIE ID + in the GNU .eh_frame sectio into account. Instead of being + a direct offset in the section it is a offset from the + location of the FDE'S CIE ID value itself to the CIE entry. */ + if (cie->cie->offset + == (size_t) (cie_id_ptr - cie_id + - (Dwarf_Small *) dbg->sections[IDX_eh_frame].addr)) + { + new_fde->fde->cie = cie->cie; + break; + } + + new_fde->fde->offset = cie_id; + new_fde->next = fdelist; + fdelist = new_fde; + ++nfdelist; + } + } + + /* There must always be at least one CIE. */ + if (unlikely (ncielist == 0)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Create the lists. */ + *cie_data = (Dwarf_Cie *) malloc (ncielist * sizeof (struct Dwarf_Cie_s)); + if (nfdelist > 0) + *fde_data = (Dwarf_Fde *) malloc (nfdelist * sizeof (struct Dwarf_Fde_s)); + else + *fde_data = NULL; + if ((nfdelist > 0 && *fde_data == NULL) || *cie_data == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + /* Remember the counts. */ + dbg->fde_cnt = nfdelist; + dbg->cie_cnt = ncielist; + + /* Add all the CIEs. */ + copy_cielist = cielist; + *cie_element_count = ncielist; + while (ncielist-- > 0) + { + (*cie_data)[ncielist] = cielist->cie; + cielist = cielist->next; + } + + /* Add all the FDEs. */ + *fde_element_count = nfdelist; + while (nfdelist-- > 0) + { + (*fde_data)[nfdelist] = fdelist->fde; + + if (fdelist->fde->cie == NULL) + { + /* We have not yet found the CIE. Search now that we know + about all of them. */ + cielist = copy_cielist; + do + { + if (cielist->cie->offset + == (size_t) (fdelist->cie_id_ptr - fdelist->fde->offset + - (Dwarf_Small *) dbg->sections[IDX_eh_frame].addr)) + { + fdelist->fde->cie = cielist->cie; + break; + } + cielist = cielist->next; + } + while (cielist != NULL); + + if (cielist == NULL) + { + /* There is no matching CIE. This is bad. */ + /* XXX Free everything. */ + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + } + + fdelist = fdelist->next; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_fde_n.c b/libdwarf/dwarf_get_fde_n.c new file mode 100644 index 0000000..5531dea --- /dev/null +++ b/libdwarf/dwarf_get_fde_n.c @@ -0,0 +1,36 @@ +/* Get nth frame descriptions. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwarfP.h" + + +int +dwarf_get_fde_n (fde_data, fde_index, returned_fde, error) + Dwarf_Fde *fde_data; + Dwarf_Unsigned fde_index; + Dwarf_Fde *returned_fde; + Dwarf_Error *error; +{ + Dwarf_Debug dbg = fde_data[0]->cie->dbg; + + if (fde_index >= dbg->fde_cnt) + return DW_DLV_NO_ENTRY; + + *returned_fde = fde_data[fde_index]; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_fde_range.c b/libdwarf/dwarf_get_fde_range.c new file mode 100644 index 0000000..f704914 --- /dev/null +++ b/libdwarf/dwarf_get_fde_range.c @@ -0,0 +1,44 @@ +/* Get information about the function range. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwarfP.h" + + +int +dwarf_get_fde_range (fde, low_pc, func_length, fde_bytes, fde_byte_length, + cie_offset, cie_index, fde_offset, error) + Dwarf_Fde fde; + Dwarf_Addr *low_pc; + Dwarf_Unsigned *func_length; + Dwarf_Ptr *fde_bytes; + Dwarf_Unsigned *fde_byte_length; + Dwarf_Off *cie_offset; + Dwarf_Signed *cie_index; + Dwarf_Off *fde_offset; + Dwarf_Error *error; +{ + *low_pc = fde->initial_location; + *func_length = fde->address_range; + *fde_bytes = fde->fde_bytes; + *fde_byte_length = fde->fde_byte_length; + *cie_offset = fde->cie->offset; + *cie_index = fde->cie->index; + *fde_offset = fde->offset; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_globals.c b/libdwarf/dwarf_get_globals.c new file mode 100644 index 0000000..01b48ae --- /dev/null +++ b/libdwarf/dwarf_get_globals.c @@ -0,0 +1,176 @@ +/* Return list of global definitions. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +struct globallist +{ + Dwarf_Global global; + struct globallist *next; +}; + + +/* Read the whole given section. */ +int +dwarf_get_globals (dbg, globals, return_count, error) + Dwarf_Debug dbg; + Dwarf_Global **globals; + Dwarf_Signed *return_count; + Dwarf_Error *error; +{ + Dwarf_Small *readp; + Dwarf_Small *readendp; + struct globallist *globallist = NULL; + unsigned int ngloballist = 0; + + if (dbg->sections[IDX_debug_pubnames].addr == NULL) + return DW_DLV_NO_ENTRY; + + readp = (Dwarf_Small *) dbg->sections[IDX_debug_pubnames].addr; + readendp = readp + dbg->sections[IDX_debug_pubnames].size; + + while (readp < readendp) + { + Dwarf_Unsigned length; + Dwarf_Unsigned info_length; + unsigned int length_bytes; + unsigned int version; + Dwarf_Unsigned offset; + Dwarf_Global_Info global_info; + + /* Each entry starts with a header: + + 1. A 4-byte or 12-byte length of the set of entries for this + compilation unit, not including the length field itself. [...] + + 2. A 2-byte version identifier containing the value 2 for + DWARF Version 2.1. + + 3. A 4-byte or 8-byte offset into the .debug_info section. [...] + + 4. A 4-byte or 8-byte length containing the size in bytes of + the contents of the .debug_info section generated to + represent this compilation unit. [...] */ + length = read_4ubyte_unaligned (dbg, readp); + readp += 4; + length_bytes = 4; + if (length == 0xffffffff) + { + length = read_8ubyte_unaligned (dbg, readp); + readp += 8; + length_bytes = 8; + } + + version = read_2ubyte_unaligned (dbg, readp); + readp += 2; + if (unlikely (version != 2)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + if (length_bytes == 4) + { + offset = read_4ubyte_unaligned (dbg, readp); + readp += 4; + info_length = read_4ubyte_unaligned (dbg, readp); + readp += 4; + } + else + { + offset = read_8ubyte_unaligned (dbg, readp); + readp += 8; + info_length = read_8ubyte_unaligned (dbg, readp); + readp += 8; + } + + global_info = + (Dwarf_Global_Info) malloc (sizeof (struct Dwarf_Global_s)); + if (global_info == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + global_info->dbg = dbg; + global_info->offset = offset; + + /* Following the section contains tuples of offsets and + nul-terminated strings. */ + while (1) + { + Dwarf_Unsigned die_offset; + struct globallist *new_global; + + if (length_bytes == 4) + die_offset = read_4ubyte_unaligned (dbg, readp); + else + die_offset = read_8ubyte_unaligned (dbg, readp); + readp += length_bytes; + + if (die_offset == 0) + /* This closes this entry. */ + break; + + new_global = + (struct globallist *) alloca (sizeof (struct globallist)); + new_global->global = + (Dwarf_Global) malloc (sizeof (struct Dwarf_Global_s)); + if (new_global->global == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + new_global->global->offset = die_offset; + new_global->global->name = (char *) readp; + new_global->global->info = global_info; + + new_global->next = globallist; + globallist = new_global; + ++ngloballist; + + readp = (Dwarf_Small *) rawmemchr (readp, '\0') + 1; + } + } + + if (ngloballist == 0) + return DW_DLV_NO_ENTRY; + + /* Allocate the array for the result. */ + *return_count = ngloballist; + *globals = (Dwarf_Global *) malloc (ngloballist + * sizeof (struct Dwarf_Global_s)); + if (*globals == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + while (ngloballist-- > 0) + { + (*globals)[ngloballist] = globallist->global; + globallist = globallist->next; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_loclist_entry.c b/libdwarf/dwarf_get_loclist_entry.c new file mode 100644 index 0000000..f6510c7 --- /dev/null +++ b/libdwarf/dwarf_get_loclist_entry.c @@ -0,0 +1,88 @@ +/* Return location list entry. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include "libdwarfP.h" + + +int +dwarf_get_loclist_entry (dbg, offset, hipc_offset, lopc_offset, data, + entry_len, next_entry, error) + Dwarf_Debug dbg; + Dwarf_Unsigned offset; + Dwarf_Addr *hipc_offset; + Dwarf_Addr *lopc_offset; + Dwarf_Ptr *data; + Dwarf_Unsigned *entry_len; + Dwarf_Unsigned *next_entry; + Dwarf_Error *error; +{ + Dwarf_Small *locp; + + /* Make sure we have room for at least two addresses. */ + if (unlikely (offset + 2 * dbg->cu_list->address_size + > dbg->sections[IDX_debug_loc].size)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + locp = (Dwarf_Small *) dbg->sections[IDX_debug_loc].addr + offset; + + /* Get the two values. */ + if (dbg->cu_list->address_size == 4) + { + *lopc_offset = read_4ubyte_unaligned (dbg, locp); + *hipc_offset = read_4ubyte_unaligned (dbg, locp + 4); + locp += 8; + offset += 8; + } + else + { + *lopc_offset = read_8ubyte_unaligned (dbg, locp); + *hipc_offset = read_8ubyte_unaligned (dbg, locp + 8); + locp += 16; + offset += 16; + } + + /* Does this signal the end? */ + if (*lopc_offset == 0 && *hipc_offset == 0) + return DW_DLV_OK; + + /* Make sure another 2 bytes are available for the length. */ + if (unlikely (offset + 2 > dbg->sections[IDX_debug_loc].size)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + *entry_len = read_2ubyte_unaligned (dbg, locp); + locp += 2; + offset += 2; + *data = locp; + + /* Now we know how long the block is. Test whether that much + data is available. */ + if (unlikely (offset + *entry_len > dbg->sections[IDX_debug_loc].size)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + *next_entry = offset + *entry_len; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_get_str.c b/libdwarf/dwarf_get_str.c new file mode 100644 index 0000000..3f289c3 --- /dev/null +++ b/libdwarf/dwarf_get_str.c @@ -0,0 +1,43 @@ +/* Return string from debug string section. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include "libdwarfP.h" + + +int +dwarf_get_str (dbg, offset, string, returned_str_len, error) + Dwarf_Debug dbg; + Dwarf_Off offset; + char **string; + Dwarf_Signed *returned_str_len; + Dwarf_Error *error; +{ + *string = (char *) dbg->sections[IDX_debug_str].addr; + if (*string == NULL) + return DW_DLV_NO_ENTRY; + + if (unlikely (offset >= dbg->sections[IDX_debug_str].size)) + return DW_DLV_NO_ENTRY; + + *string += offset; + *returned_str_len = strlen (*string); + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_getabbrev.c b/libdwarf/dwarf_getabbrev.c new file mode 100644 index 0000000..2220fc3 --- /dev/null +++ b/libdwarf/dwarf_getabbrev.c @@ -0,0 +1,73 @@ +/* Internal abbrev list handling + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +Dwarf_Abbrev +__libdwarf_get_abbrev (dbg, cu, code, error) + Dwarf_Debug dbg; + Dwarf_CU_Info cu; + Dwarf_Word code; + Dwarf_Error *error; +{ + Dwarf_Abbrev ent; + + /* See whether the entry is already in the hash table. */ + ent = Dwarf_Abbrev_Hash_find (&cu->abbrev_hash, code, NULL); + if (ent != NULL) + return ent; + + while (1) + { + Dwarf_Unsigned length; + Dwarf_Unsigned attr_count; + + if (dwarf_get_abbrev (dbg, cu->last_abbrev_offset, &ent, &length, + &attr_count, error) != DW_DLV_OK) + return NULL; + + if (length == 1) + /* This is the end of the list. */ + break; + + /* Update the offset to the next record. */ + cu->last_abbrev_offset += length; + + /* Insert the new entry into the hashing table. */ + if (unlikely (Dwarf_Abbrev_Hash_insert (&cu->abbrev_hash, ent->code, ent) + != 0)) + { + free (ent); + __libdwarf_error (dbg, error, DW_E_NOMEM); + return NULL; + } + + /* Is this the code we are looking for? */ + if (ent->code == code) + /* Yes! */ + return ent; + } + + /* If we come here we haven't found anything. */ + __libdwarf_error (dbg, error, DW_E_NO_ABBR); + return NULL; +} diff --git a/libdwarf/dwarf_getconstant.c b/libdwarf/dwarf_getconstant.c new file mode 100644 index 0000000..39727f8 --- /dev/null +++ b/libdwarf/dwarf_getconstant.c @@ -0,0 +1,125 @@ +/* Return constant value of given attribute type associated with die. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +__libdwarf_getconstant (die, name, return_size, error) + Dwarf_Die die; + Dwarf_Half name; + Dwarf_Unsigned *return_size; + Dwarf_Error *error; +{ + Dwarf_Debug dbg = die->cu->dbg; + Dwarf_Small *die_addr; + Dwarf_Word u128; + Dwarf_Abbrev abbrev; + Dwarf_Small *attrp; + + /* Address of the given die. */ + die_addr = die->addr; + + /* Get abbrev code. */ + get_uleb128 (u128, die_addr); + /* And get the abbreviation itself. */ + abbrev = __libdwarf_get_abbrev (dbg, die->cu, u128, error); + if (abbrev == NULL) + return DW_DLV_ERROR; + + /* This is where the attributes start. */ + attrp = abbrev->attrp; + + /* Search the name attribute. */ + while (1) + { + Dwarf_Word attr_name; + Dwarf_Word attr_form; + + /* Are we still in bounds? */ + if (unlikely (attrp + >= ((Dwarf_Small *) dbg->sections[IDX_debug_abbrev].addr + + dbg->sections[IDX_debug_abbrev].size))) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get attribute name and form. + + XXX We don't check whether this reads beyond the end of the + section. */ + get_uleb128 (attr_name, attrp); + get_uleb128 (attr_form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr_name == 0 && attr_form == 0) + break; + + /* Is this the name attribute? */ + if (unlikely (attr_name == name)) + { + switch (attr_form) + { + case DW_FORM_data1: + *return_size = *die_addr; + break; + case DW_FORM_data2: + *return_size = read_2ubyte_unaligned (dbg, die_addr); + break; + case DW_FORM_data4: + *return_size = read_4ubyte_unaligned (dbg, die_addr); + break; + case DW_FORM_data8: + *return_size = read_8ubyte_unaligned (dbg, die_addr); + break; + case DW_FORM_sdata: + get_sleb128 (u128, die_addr); + *return_size = u128; + break; + case DW_FORM_udata: + get_uleb128 (u128, die_addr); + *return_size = u128; + break; + default: + __libdwarf_error (dbg, error, DW_E_NO_CONSTANT); + return DW_DLV_ERROR; + } + + return DW_DLV_OK; + } + + /* Skip over the rest of this attribute (if there is any). */ + if (attr_form != 0) + { + size_t len; + + if (unlikely (__libdwarf_form_val_len (dbg, die->cu, attr_form, + die_addr, &len, error) + != DW_DLV_OK)) + return DW_DLV_ERROR; + + die_addr += len; + } + } + + /* No such attribute present. */ + return DW_DLV_NO_ENTRY; +} diff --git a/libdwarf/dwarf_global_cu_offset.c b/libdwarf/dwarf_global_cu_offset.c new file mode 100644 index 0000000..b5a30f4 --- /dev/null +++ b/libdwarf/dwarf_global_cu_offset.c @@ -0,0 +1,44 @@ +/* Return offset of header of compile unit containing the global definition. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_global_cu_offset (global, return_offset, error) + Dwarf_Global global; + Dwarf_Off *return_offset; + Dwarf_Error *error; +{ + Dwarf_Small *cu_header; + unsigned int offset_size; + + cu_header = + ((Dwarf_Small *) global->info->dbg->sections[IDX_debug_info].addr + + global->info->offset); + if (read_4ubyte_unaligned_noncvt (cu_header) == 0xffffffff) + offset_size = 8; + else + offset_size = 4; + + *return_offset = global->info->offset + 3 * offset_size - 4 + 3; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_global_die_offset.c b/libdwarf/dwarf_global_die_offset.c new file mode 100644 index 0000000..654340f --- /dev/null +++ b/libdwarf/dwarf_global_die_offset.c @@ -0,0 +1,33 @@ +/* Return DIE offset for global definition. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_global_die_offset (global, return_offset, error) + Dwarf_Global global; + Dwarf_Off *return_offset; + Dwarf_Error *error; +{ + *return_offset = global->info->offset + global->offset; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_global_formref.c b/libdwarf/dwarf_global_formref.c new file mode 100644 index 0000000..16ea7b7 --- /dev/null +++ b/libdwarf/dwarf_global_formref.c @@ -0,0 +1,73 @@ +/* Return .debug_info section global offset of reference associated with form. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_global_formref (attr, return_offset, error) + Dwarf_Attribute attr; + Dwarf_Off *return_offset; + Dwarf_Error *error; +{ + switch (attr->form) + { + case DW_FORM_ref1: + *return_offset = *attr->valp + attr->cu->offset; + break; + + case DW_FORM_ref2: + *return_offset = (read_2ubyte_unaligned (attr->cu->dbg, attr->valp) + + attr->cu->offset); + break; + + case DW_FORM_ref4: + *return_offset = (read_4ubyte_unaligned (attr->cu->dbg, attr->valp) + + attr->cu->offset); + break; + + case DW_FORM_ref8: + *return_offset = (read_8ubyte_unaligned (attr->cu->dbg, attr->valp) + + attr->cu->offset); + break; + + case DW_FORM_ref_udata: + { + Dwarf_Off off; + Dwarf_Small *attrp = attr->valp; + get_uleb128 (off, attrp); + *return_offset = off + attr->cu->offset; + } + break; + + case DW_FORM_ref_addr: + if (attr->cu->address_size == 4) + *return_offset = read_4ubyte_unaligned (attr->cu->dbg, attr->valp); + else + *return_offset = read_8ubyte_unaligned (attr->cu->dbg, attr->valp); + break; + + default: + __libdwarf_error (attr->cu->dbg, error, DW_E_NO_REFERENCE); + return DW_DLV_ERROR; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_global_name_offsets.c b/libdwarf/dwarf_global_name_offsets.c new file mode 100644 index 0000000..a9b149c --- /dev/null +++ b/libdwarf/dwarf_global_name_offsets.c @@ -0,0 +1,64 @@ +/* Return name, DIE offset, and offset of the compile unit for global + definition. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_global_name_offsets (global, return_name, die_offset, cu_offset, error) + Dwarf_Global global; + char **return_name; + Dwarf_Off *die_offset; + Dwarf_Off *cu_offset; + Dwarf_Error *error; +{ + if (return_name != NULL) + { + *return_name = strdup (global->name); + if (*return_name == NULL) + { + __libdwarf_error (global->info->dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + } + + if (die_offset != NULL) + *die_offset = global->offset + global->info->offset; + + /* Determine the size of the CU header. */ + if (cu_offset != NULL) + { + Dwarf_Small *cu_header; + unsigned int offset_size; + + cu_header = + ((Dwarf_Small *) global->info->dbg->sections[IDX_debug_info].addr + + global->info->offset); + if (read_4ubyte_unaligned_noncvt (cu_header) == 0xffffffff) + offset_size = 8; + else + offset_size = 4; + + *cu_offset = global->info->offset + 3 * offset_size - 4 + 3; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_globname.c b/libdwarf/dwarf_globname.c new file mode 100644 index 0000000..1c56529 --- /dev/null +++ b/libdwarf/dwarf_globname.c @@ -0,0 +1,38 @@ +/* Return name for global definition. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_globname (global, return_name, error) + Dwarf_Global global; + char **return_name; + Dwarf_Error *error; +{ + *return_name = strdup (global->name); + if (*return_name == NULL) + { + __libdwarf_error (global->info->dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_hasattr.c b/libdwarf/dwarf_hasattr.c new file mode 100644 index 0000000..337a3e1 --- /dev/null +++ b/libdwarf/dwarf_hasattr.c @@ -0,0 +1,98 @@ +/* Determine whether die has attribute specified of given type. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_hasattr (die, attr, return_bool, error) + Dwarf_Die die; + Dwarf_Half attr; + Dwarf_Bool *return_bool; + Dwarf_Error *error; +{ + Dwarf_Debug dbg = die->cu->dbg; + Dwarf_Small *die_addr; + Dwarf_Word u128; + Dwarf_Abbrev abbrev; + Dwarf_Small *attrp; + + /* Address of the given die. */ + die_addr = die->addr; + + /* Get abbrev code. */ + get_uleb128 (u128, die_addr); + /* And get the abbreviation itself. */ + abbrev = __libdwarf_get_abbrev (dbg, die->cu, u128, error); + if (abbrev == NULL) + return DW_DLV_ERROR; + + /* This is where the attributes start. */ + attrp = abbrev->attrp; + + /* Search the name attribute. */ + while (1) + { + Dwarf_Word attr_name; + Dwarf_Word attr_form; + + /* Are we still in bounds? */ + if (unlikely (attrp + >= ((Dwarf_Small *) dbg->sections[IDX_debug_abbrev].addr + + dbg->sections[IDX_debug_abbrev].size))) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get attribute name and form. + + XXX We don't check whether this reads beyond the end of the + section. */ + get_uleb128 (attr_name, attrp); + get_uleb128 (attr_form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr_name == 0 && attr_form == 0) + break; + + /* Is this the name attribute? */ + if (attr_name == attr) + { + *return_bool = 1; + return DW_DLV_OK; + } + + /* Skip over the rest of this attribute (if there is any). */ + if (attr_form != 0) + { + size_t len; + + if (unlikely (__libdwarf_form_val_len (dbg, die->cu, attr_form, + die_addr, &len, error) + != DW_DLV_OK)) + return DW_DLV_ERROR; + + die_addr += len; + } + } + + /* No such attribute present. */ + *return_bool = 0; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_hasform.c b/libdwarf/dwarf_hasform.c new file mode 100644 index 0000000..cfb6cf9 --- /dev/null +++ b/libdwarf/dwarf_hasform.c @@ -0,0 +1,31 @@ +/* Determine whether attribute has given form. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_hasform (attr, form, return_hasform, error) + Dwarf_Attribute attr; + Dwarf_Half form; + Dwarf_Bool *return_hasform; + Dwarf_Error *error; +{ + *return_hasform = attr->form == form; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_highpc.c b/libdwarf/dwarf_highpc.c new file mode 100644 index 0000000..5e56376 --- /dev/null +++ b/libdwarf/dwarf_highpc.c @@ -0,0 +1,108 @@ +/* Return high program counter value associated with die. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_highpc (die, return_highpc, error) + Dwarf_Die die; + Dwarf_Addr *return_highpc; + Dwarf_Error *error; +{ + Dwarf_Debug dbg = die->cu->dbg; + Dwarf_Small *die_addr; + Dwarf_Word u128; + Dwarf_Abbrev abbrev; + Dwarf_Small *attrp; + + /* Address of the given die. */ + die_addr = die->addr; + + /* Get abbrev code. */ + get_uleb128 (u128, die_addr); + /* And get the abbreviation itself. */ + abbrev = __libdwarf_get_abbrev (dbg, die->cu, u128, error); + if (abbrev == NULL) + return DW_DLV_ERROR; + + /* This is where the attributes start. */ + attrp = abbrev->attrp; + + /* Search the name attribute. */ + while (1) + { + Dwarf_Word attr_name; + Dwarf_Word attr_form; + + /* Are we still in bounds? */ + if (unlikely (attrp + >= ((Dwarf_Small *) dbg->sections[IDX_debug_abbrev].addr + + dbg->sections[IDX_debug_abbrev].size))) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get attribute name and form. + + XXX We don't check whether this reads beyond the end of the + section. */ + get_uleb128 (attr_name, attrp); + get_uleb128 (attr_form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr_name == 0 && attr_form == 0) + break; + + /* Is this the name attribute? */ + if (unlikely (attr_name == DW_AT_high_pc)) + { + if (unlikely (attr_form != DW_FORM_addr)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + if (die->cu->address_size == 4) + *return_highpc = read_4ubyte_unaligned (dbg, die_addr); + else + *return_highpc = read_8ubyte_unaligned (dbg, die_addr); + + return DW_DLV_OK; + } + + /* Skip over the rest of this attribute (if there is any). */ + if (attr_form != 0) + { + size_t len; + + if (unlikely (__libdwarf_form_val_len (dbg, die->cu, attr_form, + die_addr, &len, error) + != DW_DLV_OK)) + return DW_DLV_ERROR; + + die_addr += len; + } + } + + /* No such attribute present. */ + return DW_DLV_NO_ENTRY; +} diff --git a/libdwarf/dwarf_init.c b/libdwarf/dwarf_init.c new file mode 100644 index 0000000..bbb8660 --- /dev/null +++ b/libdwarf/dwarf_init.c @@ -0,0 +1,92 @@ +/* Create descriptor from file descriptor for processing file. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +int +dwarf_init (fd, access, errhand, errarg, dbg, error) + int fd; + Dwarf_Unsigned access; + Dwarf_Handler errhand; + Dwarf_Ptr errarg; + Dwarf_Debug *dbg; + Dwarf_Error *error; +{ + Elf *elf; + Elf_Cmd cmd; + struct Dwarf_Debug_s newdbg; + int result = DW_DLV_ERROR; + + switch (access) + { + case DW_DLC_READ: + cmd = ELF_C_READ_MMAP; + break; + case DW_DLC_WRITE: + cmd = ELF_C_WRITE; + break; + case DW_DLC_RDWR: + cmd = ELF_C_RDWR; + break; + default: + /* These are the error values we want to use. */ + newdbg.dbg_errhand = errhand; + newdbg.dbg_errarg = errarg; + + __libdwarf_error (&newdbg, error, DW_E_INVALID_ACCESS); + return DW_DLV_ERROR; + } + + /* We have to call `elf_version' here since the user might have not + done it or initialized libelf with a different version. This + would break libdwarf since we are using the ELF data structures + in a certain way. */ + elf_version (EV_CURRENT); + + /* Get an ELF descriptor. */ + elf = elf_begin (fd, cmd, NULL); + if (elf == NULL) + { + /* Test why the `elf_begin" call failed. */ + struct stat64 st; + + /* These are the error values we want to use. */ + newdbg.dbg_errhand = errhand; + newdbg.dbg_errarg = errarg; + + if (fstat64 (fd, &st) == 0 && ! S_ISREG (st.st_mode)) + __libdwarf_error (&newdbg, error, DW_E_NO_REGFILE); + else + __libdwarf_error (&newdbg, error, DW_E_IO_ERROR); + } + else + { + /* Do the real work now that we have an ELF descriptor. */ + result = dwarf_elf_init (elf, access, errhand, errarg, dbg, error); + + /* If this failed, free the resources. */ + if (result != DW_DLV_OK) + elf_end (elf); + } + + return result; +} diff --git a/libdwarf/dwarf_lineaddr.c b/libdwarf/dwarf_lineaddr.c new file mode 100644 index 0000000..4bf4943 --- /dev/null +++ b/libdwarf/dwarf_lineaddr.c @@ -0,0 +1,30 @@ +/* Return address associate with line. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_lineaddr (line, return_lineaddr, error) + Dwarf_Line line; + Dwarf_Addr *return_lineaddr; + Dwarf_Error *error; +{ + *return_lineaddr = line->addr; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_linebeginstatement.c b/libdwarf/dwarf_linebeginstatement.c new file mode 100644 index 0000000..d04c6ec --- /dev/null +++ b/libdwarf/dwarf_linebeginstatement.c @@ -0,0 +1,30 @@ +/* Determine whether line is the beginning of a statement. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_linebeginstatement (line, return_bool, error) + Dwarf_Line line; + Dwarf_Bool *return_bool; + Dwarf_Error *error; +{ + *return_bool = line->is_stmt; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_lineblock.c b/libdwarf/dwarf_lineblock.c new file mode 100644 index 0000000..f15e54b --- /dev/null +++ b/libdwarf/dwarf_lineblock.c @@ -0,0 +1,30 @@ +/* Determine whether line is marked as beginning a basic block. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_lineblock (line, return_bool, error) + Dwarf_Line line; + Dwarf_Bool *return_bool; + Dwarf_Error *error; +{ + *return_bool = line->basic_block; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_lineendsequence.c b/libdwarf/dwarf_lineendsequence.c new file mode 100644 index 0000000..93cbf8e --- /dev/null +++ b/libdwarf/dwarf_lineendsequence.c @@ -0,0 +1,30 @@ +/* Determine whether line is marked as ending a text sequence. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_lineendsequence (line, return_bool, error) + Dwarf_Line line; + Dwarf_Bool *return_bool; + Dwarf_Error *error; +{ + *return_bool = line->end_sequence; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_lineepiloguebegin.c b/libdwarf/dwarf_lineepiloguebegin.c new file mode 100644 index 0000000..33df13f --- /dev/null +++ b/libdwarf/dwarf_lineepiloguebegin.c @@ -0,0 +1,30 @@ +/* Determine whether line is marked as beginning the epilogue. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_lineepiloguebegin (line, return_bool, error) + Dwarf_Line line; + Dwarf_Bool *return_bool; + Dwarf_Error *error; +{ + *return_bool = line->epilogue_begin; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_lineno.c b/libdwarf/dwarf_lineno.c new file mode 100644 index 0000000..83f911d --- /dev/null +++ b/libdwarf/dwarf_lineno.c @@ -0,0 +1,30 @@ +/* Return source statement line number. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_lineno (line, return_lineno, error) + Dwarf_Line line; + Dwarf_Unsigned *return_lineno; + Dwarf_Error *error; +{ + *return_lineno = line->line; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_lineoff.c b/libdwarf/dwarf_lineoff.c new file mode 100644 index 0000000..82f4bbc --- /dev/null +++ b/libdwarf/dwarf_lineoff.c @@ -0,0 +1,30 @@ +/* Return column at which the statement begins. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_lineoff (line, return_lineoff, error) + Dwarf_Line line; + Dwarf_Signed *return_lineoff; + Dwarf_Error *error; +{ + *return_lineoff = line->column ?: -1; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_lineprologueend.c b/libdwarf/dwarf_lineprologueend.c new file mode 100644 index 0000000..f202f73 --- /dev/null +++ b/libdwarf/dwarf_lineprologueend.c @@ -0,0 +1,30 @@ +/* Determine whether line is marked as ending the prologue. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_lineprologueend (line, return_bool, error) + Dwarf_Line line; + Dwarf_Bool *return_bool; + Dwarf_Error *error; +{ + *return_bool = line->prologue_end; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_linesrc.c b/libdwarf/dwarf_linesrc.c new file mode 100644 index 0000000..5c99000 --- /dev/null +++ b/libdwarf/dwarf_linesrc.c @@ -0,0 +1,44 @@ +/* Return source file for line. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_linesrc (line, return_linesrc, error) + Dwarf_Line line; + char **return_linesrc; + Dwarf_Error *error; +{ + if (unlikely (line->file >= line->files->nfiles)) + { + __libdwarf_error (line->files->dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + *return_linesrc = strdup (line->files->info[line->file].name); + if (*return_linesrc == NULL) + { + __libdwarf_error (line->files->dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_loclist.c b/libdwarf/dwarf_loclist.c new file mode 100644 index 0000000..22a3944 --- /dev/null +++ b/libdwarf/dwarf_loclist.c @@ -0,0 +1,470 @@ +/* Return location expression list. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +struct loclist +{ + Dwarf_Small atom; + Dwarf_Unsigned number; + Dwarf_Unsigned number2; + Dwarf_Unsigned offset; + struct loclist *next; +}; + +struct locdesclist +{ + Dwarf_Addr lopc; + Dwarf_Addr hipc; + Dwarf_Half cents; + struct loclist *s; + struct locdesclist *next; +}; + + +int +dwarf_loclist (attr, llbuf, listlen, error) + Dwarf_Attribute attr; + Dwarf_Locdesc **llbuf; + Dwarf_Signed *listlen; + Dwarf_Error *error; +{ + Dwarf_CU_Info cu = attr->cu; + Dwarf_Debug dbg = cu->dbg; + Dwarf_Unsigned offset; + Dwarf_Unsigned offset_end; + Dwarf_Small *locp; + struct locdesclist *locdesclist; + Dwarf_Locdesc *result; + unsigned int n; + + /* Must by one of the attribute listed below. */ + if (attr->code != DW_AT_location + && attr->code != DW_AT_data_member_location + && attr->code != DW_AT_vtable_elem_location + && attr->code != DW_AT_string_length + && attr->code != DW_AT_use_location + && attr->code != DW_AT_return_addr) + { + __libdwarf_error (dbg, error, DW_E_WRONG_ATTR); + return DW_DLV_ERROR; + } + + /* Must have the form data4 or data8 which act as an offset. */ + if (attr->form == DW_FORM_data4) + offset = read_4ubyte_unaligned (dbg, attr->valp); + else if (likely (attr->form == DW_FORM_data8)) + offset = read_8ubyte_unaligned (dbg, attr->valp); + else + { + __libdwarf_error (dbg, error, DW_E_NO_DATA); + return DW_DLV_ERROR; + } + + /* Check whether the .debug_loc section is available. */ + if (unlikely (dbg->sections[IDX_debug_loc].addr == NULL)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* This is the part of the .debug_loc section we can read. */ + locp = (Dwarf_Small *) dbg->sections[IDX_debug_loc].addr + offset; + offset_end = offset + dbg->sections[IDX_debug_loc].size; + + locdesclist = NULL; + n = 0; + while (1) + { + Dwarf_Addr lopc; + Dwarf_Addr hipc; + Dwarf_Ptr data; + Dwarf_Unsigned len2; + struct locdesclist *newdesc; + Dwarf_Small *locp; + Dwarf_Small *blkendp; + Dwarf_Small *blkstartp; + + if (unlikely (dwarf_get_loclist_entry (dbg, offset, &hipc, &lopc, &data, + &len2, &offset, error) + != DW_DLV_OK)) + return DW_DLV_ERROR; + + /* Does this signal the end? */ + if (lopc == 0 && hipc == 0) + break; + + locp = data; + blkstartp = locp; + blkendp = locp + len2; + + /* Create a new Locdesc entry. */ + newdesc = (struct locdesclist *) alloca (sizeof (struct locdesclist)); + newdesc->lopc = lopc; + newdesc->hipc = hipc; + newdesc->cents = 0; + newdesc->s = NULL; + newdesc->next = locdesclist; + locdesclist = newdesc; + ++n; + + /* Decode the opcodes. It is possible in some situations to + have a block of size zero. */ + while (locp < blkendp) + { + struct loclist *newloc; + + newloc = (struct loclist *) alloca (sizeof (struct loclist)); + newloc->number = 0; + newloc->number2 = 0; + newloc->offset = locp - blkstartp; + newloc->next = newdesc->s; + newdesc->s = newloc; + ++newdesc->cents; + + newloc->atom = *locp; + switch (*locp++) + { + case DW_OP_addr: + /* Address, depends on address size of CU. */ + if (cu->address_size == 4) + { + if (unlikely (locp + 4 > blkendp)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + newloc->number = read_4ubyte_unaligned (dbg, locp); + locp += 4; + } + else + { + if (unlikely (locp + 8 > blkendp)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + newloc->number = read_8ubyte_unaligned (dbg, locp); + locp += 8; + } + break; + + case DW_OP_deref: + case DW_OP_dup: + case DW_OP_drop: + case DW_OP_over: + case DW_OP_swap: + case DW_OP_rot: + case DW_OP_xderef: + case DW_OP_abs: + case DW_OP_and: + case DW_OP_div: + case DW_OP_minus: + case DW_OP_mod: + case DW_OP_mul: + case DW_OP_neg: + case DW_OP_not: + case DW_OP_or: + case DW_OP_plus: + case DW_OP_shl: + case DW_OP_shr: + case DW_OP_shra: + case DW_OP_xor: + case DW_OP_eq: + case DW_OP_ge: + case DW_OP_gt: + case DW_OP_le: + case DW_OP_lt: + case DW_OP_ne: + case DW_OP_lit0: + case DW_OP_lit1: + case DW_OP_lit2: + case DW_OP_lit3: + case DW_OP_lit4: + case DW_OP_lit5: + case DW_OP_lit6: + case DW_OP_lit7: + case DW_OP_lit8: + case DW_OP_lit9: + case DW_OP_lit10: + case DW_OP_lit11: + case DW_OP_lit12: + case DW_OP_lit13: + case DW_OP_lit14: + case DW_OP_lit15: + case DW_OP_lit16: + case DW_OP_lit17: + case DW_OP_lit18: + case DW_OP_lit19: + case DW_OP_lit20: + case DW_OP_lit21: + case DW_OP_lit22: + case DW_OP_lit23: + case DW_OP_lit24: + case DW_OP_lit25: + case DW_OP_lit26: + case DW_OP_lit27: + case DW_OP_lit28: + case DW_OP_lit29: + case DW_OP_lit30: + case DW_OP_lit31: + case DW_OP_reg0: + case DW_OP_reg1: + case DW_OP_reg2: + case DW_OP_reg3: + case DW_OP_reg4: + case DW_OP_reg5: + case DW_OP_reg6: + case DW_OP_reg7: + case DW_OP_reg8: + case DW_OP_reg9: + case DW_OP_reg10: + case DW_OP_reg11: + case DW_OP_reg12: + case DW_OP_reg13: + case DW_OP_reg14: + case DW_OP_reg15: + case DW_OP_reg16: + case DW_OP_reg17: + case DW_OP_reg18: + case DW_OP_reg19: + case DW_OP_reg20: + case DW_OP_reg21: + case DW_OP_reg22: + case DW_OP_reg23: + case DW_OP_reg24: + case DW_OP_reg25: + case DW_OP_reg26: + case DW_OP_reg27: + case DW_OP_reg28: + case DW_OP_reg29: + case DW_OP_reg30: + case DW_OP_reg31: + case DW_OP_nop: + case DW_OP_push_object_address: + case DW_OP_call_ref: + /* No operand. */ + break; + + case DW_OP_const1u: + case DW_OP_pick: + case DW_OP_deref_size: + case DW_OP_xderef_size: + if (unlikely (locp >= blkendp)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + newloc->number = *((uint8_t *) locp)++; + break; + + case DW_OP_const1s: + if (unlikely (locp >= blkendp)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + newloc->number = *((int8_t *) locp)++; + break; + + case DW_OP_const2u: + if (unlikely (locp + 2 > blkendp)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + newloc->number = read_2ubyte_unaligned (dbg, locp); + locp += 2; + break; + + case DW_OP_const2s: + case DW_OP_skip: + case DW_OP_bra: + case DW_OP_call2: + if (unlikely (locp + 2 > blkendp)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + newloc->number = read_2sbyte_unaligned (dbg, locp); + locp += 2; + break; + + case DW_OP_const4u: + if (unlikely (locp + 4 > blkendp)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + newloc->number = read_4ubyte_unaligned (dbg, locp); + locp += 4; + break; + + case DW_OP_const4s: + case DW_OP_call4: + if (unlikely (locp + 4 > blkendp)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + newloc->number = read_4sbyte_unaligned (dbg, locp); + locp += 4; + break; + + case DW_OP_const8u: + if (unlikely (locp + 8 > blkendp)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + newloc->number = read_8ubyte_unaligned (dbg, locp); + locp += 8; + break; + + case DW_OP_const8s: + if (unlikely (locp + 8 > blkendp)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + newloc->number = read_8sbyte_unaligned (dbg, locp); + locp += 8; + break; + + case DW_OP_constu: + case DW_OP_plus_uconst: + case DW_OP_regx: + case DW_OP_piece: + /* XXX Check size. */ + get_uleb128 (newloc->number, locp); + break; + + case DW_OP_consts: + case DW_OP_breg0: + case DW_OP_breg1: + case DW_OP_breg2: + case DW_OP_breg3: + case DW_OP_breg4: + case DW_OP_breg5: + case DW_OP_breg6: + case DW_OP_breg7: + case DW_OP_breg8: + case DW_OP_breg9: + case DW_OP_breg10: + case DW_OP_breg11: + case DW_OP_breg12: + case DW_OP_breg13: + case DW_OP_breg14: + case DW_OP_breg15: + case DW_OP_breg16: + case DW_OP_breg17: + case DW_OP_breg18: + case DW_OP_breg19: + case DW_OP_breg20: + case DW_OP_breg21: + case DW_OP_breg22: + case DW_OP_breg23: + case DW_OP_breg24: + case DW_OP_breg25: + case DW_OP_breg26: + case DW_OP_breg27: + case DW_OP_breg28: + case DW_OP_breg29: + case DW_OP_breg30: + case DW_OP_breg31: + case DW_OP_fbreg: + /* XXX Check size. */ + get_sleb128 (newloc->number, locp); + break; + + case DW_OP_bregx: + /* XXX Check size. */ + get_uleb128 (newloc->number, locp); + get_sleb128 (newloc->number2, locp); + break; + + default: + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + } + } + + if (unlikely (n == 0)) + { + /* This is not allowed. + + XXX Is it? */ + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Allocate the array. */ + result = (Dwarf_Locdesc *) malloc (n * sizeof (Dwarf_Locdesc)); + if (result == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + /* Store the result. */ + *llbuf = result; + *listlen = n; + + do + { + unsigned int cents; + struct loclist *s; + + /* We populate the array from the back since the list is + backwards. */ + --n; + + result[n].ld_lopc = locdesclist->lopc; + result[n].ld_hipc = locdesclist->hipc; + result[n].ld_cents = cents = locdesclist->cents; + result[n].ld_s = (Dwarf_Loc *) malloc (cents * sizeof (Dwarf_Loc)); + if (result == NULL) + { + /* XXX Should be bother freeing memory? */ + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + s = locdesclist->s; + while (cents-- > 0) + { + /* This list is also backwards. */ + result[n].ld_s[cents].lr_atom = s->atom; + result[n].ld_s[cents].lr_number = s->number; + result[n].ld_s[cents].lr_number2 = s->number2; + result[n].ld_s[cents].lr_offset = s->offset; + s = s->next; + } + + locdesclist = locdesclist->next; + } + while (n > 0); + + /* We did it. */ + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_lowpc.c b/libdwarf/dwarf_lowpc.c new file mode 100644 index 0000000..c21edc9 --- /dev/null +++ b/libdwarf/dwarf_lowpc.c @@ -0,0 +1,108 @@ +/* Return low program counter value associated with die. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_lowpc (die, return_lowpc, error) + Dwarf_Die die; + Dwarf_Addr *return_lowpc; + Dwarf_Error *error; +{ + Dwarf_Debug dbg = die->cu->dbg; + Dwarf_Small *die_addr; + Dwarf_Word u128; + Dwarf_Abbrev abbrev; + Dwarf_Small *attrp; + + /* Address of the given die. */ + die_addr = die->addr; + + /* Get abbrev code. */ + get_uleb128 (u128, die_addr); + /* And get the abbreviation itself. */ + abbrev = __libdwarf_get_abbrev (dbg, die->cu, u128, error); + if (abbrev == NULL) + return DW_DLV_ERROR; + + /* This is where the attributes start. */ + attrp = abbrev->attrp; + + /* Search the name attribute. */ + while (1) + { + Dwarf_Word attr_name; + Dwarf_Word attr_form; + + /* Are we still in bounds? */ + if (unlikely (attrp + >= ((Dwarf_Small *) dbg->sections[IDX_debug_abbrev].addr + + dbg->sections[IDX_debug_abbrev].size))) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get attribute name and form. + + XXX We don't check whether this reads beyond the end of the + section. */ + get_uleb128 (attr_name, attrp); + get_uleb128 (attr_form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr_name == 0 && attr_form == 0) + break; + + /* Is this the name attribute? */ + if (unlikely (attr_name == DW_AT_low_pc)) + { + if (unlikely (attr_form != DW_FORM_addr)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + if (die->cu->address_size == 4) + *return_lowpc = read_4ubyte_unaligned (dbg, die_addr); + else + *return_lowpc = read_8ubyte_unaligned (dbg, die_addr); + + return DW_DLV_OK; + } + + /* Skip over the rest of this attribute (if there is any). */ + if (attr_form != 0) + { + size_t len; + + if (unlikely (__libdwarf_form_val_len (dbg, die->cu, attr_form, + die_addr, &len, error) + != DW_DLV_OK)) + return DW_DLV_ERROR; + + die_addr += len; + } + } + + /* No such attribute present. */ + return DW_DLV_NO_ENTRY; +} diff --git a/libdwarf/dwarf_next_cu_header.c b/libdwarf/dwarf_next_cu_header.c new file mode 100644 index 0000000..54bb39e --- /dev/null +++ b/libdwarf/dwarf_next_cu_header.c @@ -0,0 +1,234 @@ +/* Get offset of next compilation unit. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +/* A good initial size for the abbreviation hashing table. */ +#define DEFAULT_ABBREV_HASH_SIZE 257 + + +int +internal_function +__libdwarf_get_cu_at_offset (Dwarf_Debug dbg, Dwarf_Unsigned offset, + Dwarf_CU_Info *result_cu, Dwarf_Error *error) +{ + Dwarf_CU_Info cu; + Dwarf_Small *cu_bytes; + Dwarf_Unsigned length; + Dwarf_Half offset_size; + + /* Make sure there is enough space in the .debug_info section for at + least the initial word. We cannot test the rest since we don't + know yet whether this is a 64-bit object or not. */ + if (unlikely (offset + 4 >= dbg->sections[IDX_debug_info].size)) + { + dbg->cu_list_current = NULL; + return DW_DLV_NO_ENTRY; + } + + /* This points into the .debug_info section to the beginning of the + CU entry. */ + cu_bytes = (Dwarf_Small *) dbg->sections[IDX_debug_info].addr + offset; + + /* The format of the CU header is described in dwarf2p1 7.5.1: + + 1. A 4-byte or 12-byte unsigned integer representing the length + of the .debug_info contribution for that compilation unit, not + including the length field itself. In the 32-bit DWARF format, + this is a 4-byte unsigned integer (which must be less than + 0xffffff00); in the 64-bit DWARF format, this consists of the + 4-byte value 0xffffffff followed by an 8-byte unsigned integer + that gives the actual length (see Section 7.4). + + 2. A 2-byte unsigned integer representing the version of the + DWARF information for that compilation unit. For DWARF Version + 2.1, the value in this field is 2. + + 3. A 4-byte or 8-byte unsigned offset into the .debug_abbrev + section. This offset associates the compilation unit with a + particular set of debugging information entry abbreviations. In + the 32-bit DWARF format, this is a 4-byte unsigned length; in + the 64-bit DWARF format, this is an 8-byte unsigned length (see + Section 7.4). + + 4. A 1-byte unsigned integer representing the size in bytes of + an address on the target architecture. If the system uses + segmented addressing, this value represents the size of the + offset portion of an address. */ + length = read_4ubyte_unaligned (dbg, cu_bytes); + cu_bytes += 4; + offset_size = 4; + if (length == 0xffffffff) + offset_size = 8; + + /* Now we know how large the header is. Note the trick in the + computation. If the offset_size is 4 the '- 4' term undoes the + '2 *'. If offset_size is 8 this term computes the size of the + escape value plus the 8 byte offset. */ + if (unlikely (offset + 2 * offset_size - 4 + sizeof (Dwarf_Half) + + offset_size + sizeof (Dwarf_Small) + >= dbg->sections[IDX_debug_info].size)) + { + dbg->cu_list_current = NULL; + return DW_DLV_NO_ENTRY; + } + + if (length == 0xffffffff) + { + /* This is a 64-bit DWARF format. */ + length = read_8ubyte_unaligned (dbg, cu_bytes); + cu_bytes += 8; + } + + /* We know we have enough room in the .debug_section. Allocate the + result data structure. */ + cu = (Dwarf_CU_Info) malloc (sizeof (struct Dwarf_CU_Info_s)); + if (cu == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + /* Store the values in the data structure. */ + cu->offset = offset; + cu->offset_size = offset_size; + cu->length = length; + + /* Store the version stamp. Always a 16-bit value. */ + cu->version_stamp = read_2ubyte_unaligned (dbg, cu_bytes); + cu_bytes += 2; + + /* Get offset in .debug_abbrev. Note that the size of the entry + depends on whether this is a 32-bit or 64-bit DWARF definition. */ + if (offset_size == 4) + cu->abbrev_offset = read_4ubyte_unaligned (dbg, cu_bytes); + else + cu->abbrev_offset = read_8ubyte_unaligned (dbg, cu_bytes); + cu_bytes += offset_size; + cu->last_abbrev_offset = cu->abbrev_offset; + + /* The address size. Always an 8-bit value. */ + cu->address_size = *cu_bytes++; + + /* Store the header length. */ + cu->header_length = (cu_bytes + - ((Dwarf_Small *) dbg->sections[IDX_debug_info].addr + + offset)); + + /* Initilize a few more members. */ + if (unlikely (Dwarf_Abbrev_Hash_init (&cu->abbrev_hash, + DEFAULT_ABBREV_HASH_SIZE) != 0)) + { + free (cu); + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + /* Remember the debugging handle. */ + cu->dbg = dbg; + + /* There is no other entry yet. */ + cu->next = NULL; + + /* Enqueue the new entry. */ + if (dbg->cu_list == NULL) + dbg->cu_list = dbg->cu_list_tail = cu; + else + { + dbg->cu_list_tail->next = cu; + dbg->cu_list_tail = cu; + } + *result_cu = cu; + + return DW_DLV_OK; +} + + +int +dwarf_next_cu_header (dbg, cu_header_length, version_stamp, abbrev_offset, + address_size, next_cu_header, error) + Dwarf_Debug dbg; + Dwarf_Unsigned *cu_header_length; + Dwarf_Half *version_stamp; + Dwarf_Unsigned *abbrev_offset; + Dwarf_Half *address_size; + Dwarf_Unsigned *next_cu_header; + Dwarf_Error *error; +{ + Dwarf_Unsigned offset_next_cu; + Dwarf_CU_Info cu; + + if (dbg == NULL) + return DW_DLV_ERROR; + + /* Determine offset of next CU header. If we don't have a current + CU this is the first call and we start right at the beginning. */ + if (dbg->cu_list_current == NULL) + { + offset_next_cu = 0; + cu = dbg->cu_list; + } + else + { + /* We can compute the offset from the information we read from + the last CU header. */ + cu = dbg->cu_list_current; + + offset_next_cu = cu->offset + 2 * cu->offset_size - 4 + cu->length; + + /* See whether the next entry entry is available. */ + cu = cu->next; + } + + /* If the entry is not yet available get it. */ + if (cu == NULL) + { + int res = __libdwarf_get_cu_at_offset (dbg, offset_next_cu, &cu, error); + + /* If it still does not exist, fail. Note that this can mean an + error or that we reached the end. */ + if (res != DW_DLV_OK) + return res; + + dbg->cu_list_current = cu; + assert (cu != NULL); + } + + /* See get_cu_at_offset for an explanation of the trick in this + formula. */ + *next_cu_header = offset_next_cu + 2 * cu->offset_size - 4 + cu->length; + + /* Extract the information and put it where the user wants it. */ + if (cu_header_length != NULL) + *cu_header_length = cu->header_length; + + if (version_stamp != NULL) + *version_stamp = cu->version_stamp; + + if (abbrev_offset != NULL) + *abbrev_offset = cu->abbrev_offset; + + if (address_size != NULL) + *address_size = cu->address_size; + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_offdie.c b/libdwarf/dwarf_offdie.c new file mode 100644 index 0000000..2e94d2e --- /dev/null +++ b/libdwarf/dwarf_offdie.c @@ -0,0 +1,123 @@ +/* Return die at given offset. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +/* XXX This function will have to be optimized. The search is too linear + to be performed too often -> O(n²). */ +static Dwarf_CU_Info +find_cu (Dwarf_Debug dbg, Dwarf_Off offset, Dwarf_Error *error) +{ + Dwarf_CU_Info cu; + Dwarf_Word cu_offset; + + /* Search in the CUs already known. */ + for (cu = dbg->cu_list; cu != NULL; cu = cu->next) + if (cu->offset <= offset + && cu->offset + 2 * cu->offset_size - 4 + cu->length > offset) + return cu; + + /* The CU is not yet loaded. Do this now. */ + if (dbg->cu_list_tail == NULL) + cu_offset = 0; + else + cu_offset = (dbg->cu_list_tail->offset + + 2 * dbg->cu_list_tail->offset_size - 4 + + dbg->cu_list_tail->length); + + while (1) + { + /* Get next CU and add it to the end of the list. */ + if (__libdwarf_get_cu_at_offset (dbg, cu_offset, &cu, error) + != DW_DLV_OK) + return NULL; + + /* Offset of next CU. */ + cu_offset += 2 * cu->offset_size - 4 + cu->length; + + /* If this the CU we are looking for? */ + if (offset < cu_offset) + return cu; + } +} + + +int +dwarf_offdie (dbg, offset, return_die, error) + Dwarf_Debug dbg; + Dwarf_Off offset; + Dwarf_Die *return_die; + Dwarf_Error *error; +{ + Dwarf_CU_Info cu; + Dwarf_Die new_die; + Dwarf_Small *die_addr; + Dwarf_Word u128; + + if (offset >= dbg->sections[IDX_debug_info].size) + { + /* Completely out of bounds. */ + __libdwarf_error (dbg, error, DW_E_INVALID_OFFSET); + return DW_DLV_ERROR; + } + + /* Find the compile unit this address belongs to. */ + cu = find_cu (dbg, offset, error); + if (cu == NULL) + return DW_DLV_ERROR; + + /* Creata a new die. */ + new_die = (Dwarf_Die) malloc (sizeof (struct Dwarf_Die_s)); + if (new_die == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + +#ifdef DWARF_DEBUG + new_die->memtag = DW_DLA_DIE; +#endif + + /* Remember the address. */ + die_addr = (Dwarf_Small *) dbg->sections[IDX_debug_info].addr + offset; + new_die->addr = die_addr; + + /* And the compile unit. */ + new_die->cu = cu; + + /* 7.5.2 Debugging Information Entry + + Each debugging information entry begins with an unsigned LEB128 + number containing the abbreviation code for the entry. */ + get_uleb128 (u128, die_addr); + + /* Find the abbreviation. */ + new_die->abbrev = __libdwarf_get_abbrev (dbg, cu, u128, error); + if (new_die->abbrev == NULL) + { + free (new_die); + return DW_DLV_ERROR; + } + + *return_die = new_die; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_seterrarg.c b/libdwarf/dwarf_seterrarg.c new file mode 100644 index 0000000..8b52d24 --- /dev/null +++ b/libdwarf/dwarf_seterrarg.c @@ -0,0 +1,30 @@ +/* Set new error handler argument. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +Dwarf_Ptr +dwarf_seterrarg (dbg, errarg) + Dwarf_Debug dbg; + Dwarf_Ptr errarg; +{ + Dwarf_Ptr old = dbg->dbg_errarg; + dbg->dbg_errarg = errarg; + return old; +} diff --git a/libdwarf/dwarf_seterrhand.c b/libdwarf/dwarf_seterrhand.c new file mode 100644 index 0000000..199a250 --- /dev/null +++ b/libdwarf/dwarf_seterrhand.c @@ -0,0 +1,30 @@ +/* Set new error handler. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +Dwarf_Handler +dwarf_seterrhand (dbg, errhand) + Dwarf_Debug dbg; + Dwarf_Handler errhand; +{ + Dwarf_Handler old = dbg->dbg_errhand; + dbg->dbg_errhand = errhand; + return old; +} diff --git a/libdwarf/dwarf_siblingof.c b/libdwarf/dwarf_siblingof.c new file mode 100644 index 0000000..04a3ab6 --- /dev/null +++ b/libdwarf/dwarf_siblingof.c @@ -0,0 +1,257 @@ +/* Return descriptor for sibling of die. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +int +dwarf_siblingof (dbg, die, return_sub, error) + Dwarf_Debug dbg; + Dwarf_Die die; + Dwarf_Die *return_sub; + Dwarf_Error *error; +{ + Dwarf_Small *die_addr; + Dwarf_CU_Info cu; + Dwarf_Unsigned u128; + Dwarf_Die new_die; + + if (dbg == NULL) + return DW_DLV_ERROR; + + if (die == NULL) + { + Dwarf_Unsigned die_offset; + + /* We are supposed to return the DW_TAG_compile_unit die for the + current compile unit. For this to succeed the user must have + looked for the compile unit before. */ + if (dbg->cu_list_current == NULL) + { + __libdwarf_error (dbg, error, DW_E_NO_CU); + return DW_DLV_ERROR; + } + + cu = dbg->cu_list_current; + + die_offset = (cu->offset + 2 * cu->offset_size - 4 + sizeof (Dwarf_Half) + + cu->offset_size + 1); + + /* Check whether this is withing the debug section. */ + if (die_offset >= dbg->sections[IDX_debug_info].size) + return DW_DLV_NO_ENTRY; + + /* Compute the pointer. */ + die_addr = ((Dwarf_Small *) dbg->sections[IDX_debug_info].addr + + die_offset); + } + else + { + unsigned int level = 0; + + /* We start from the given die. */ + cu = die->cu; + + /* Address of the given die. */ + die_addr = die->addr; + + /* Search for the beginning of the next die on this level. We + must not return the dies for children of the given die. */ + do + { + Dwarf_Abbrev abbrev; + Dwarf_Small *attrp; + Dwarf_Word attr_name; + Dwarf_Word attr_form; + + /* Get abbrev code. */ + get_uleb128 (u128, die_addr); + /* And get the abbreviation itself. */ + abbrev = __libdwarf_get_abbrev (dbg, cu, u128, error); + if (abbrev == NULL) + return DW_DLV_ERROR; + + /* This is where the attributes start. */ + attrp = abbrev->attrp; + + /* Does this abbreviation have children? */ + if (abbrev->has_children) + ++level; + + while (1) + { + /* Are we still in bounds? */ + if (attrp >= ((Dwarf_Small *)dbg->sections[IDX_debug_abbrev].addr + + dbg->sections[IDX_debug_abbrev].size)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get attribute name and form. + + XXX We don't check whether this reads beyond the end of + the section. */ + get_uleb128 (attr_name, attrp); + get_uleb128 (attr_form, attrp); + + /* We can stop if we found the attribute with value zero. */ + if (attr_name == 0 && attr_form == 0) + break; + + /* See whether this is an sibling attribute which would help + us to skip ahead. */ + if (attr_name == DW_AT_sibling) + { + /* Cool. We just have to decode the parameter and we know + the offset. */ + Dwarf_Unsigned offset; + + switch (attr_form) + { + case DW_FORM_ref1: + offset = *die_addr; + break; + + case DW_FORM_ref2: + offset = read_2ubyte_unaligned (dbg, die_addr); + break; + + case DW_FORM_ref4: + offset = read_4ubyte_unaligned (dbg, die_addr); + break; + + case DW_FORM_ref8: + offset = read_8ubyte_unaligned (dbg, die_addr); + break; + + case DW_FORM_ref_udata: + get_uleb128 (offset, die_addr); + break; + + default: + /* The above are all legal forms. Everything else is + an error. */ + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Compute the new address. Some sanity check first, + though. */ + if (unlikely (offset > 2 * cu->offset_size - 4 + cu->length)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + die_addr = + ((Dwarf_Small *) dbg->sections[IDX_debug_info].addr + + cu->offset + offset); + + /* Even if the abbreviation has children we have stepped + over them now. */ + if (abbrev->has_children) + --level; + break; + } + + /* Skip over the rest of this attribute (if there is any). */ + if (attr_form != 0) + { + size_t len; + + if (unlikely (__libdwarf_form_val_len (dbg, cu, attr_form, + die_addr, &len, error) + != DW_DLV_OK)) + return DW_DLV_ERROR; + + die_addr += len; + } + } + + /* Check that we are not yet at the end. */ + if (*die_addr == 0) + { + if (level == 0) + return DW_DLV_NO_ENTRY; + + do + ++die_addr; + while (--level > 0 && *die_addr == 0); + } + } + while (level > 0); + } + + /* Are we at the end. */ + if (die != NULL + && die_addr >= ((Dwarf_Small *) dbg->sections[IDX_debug_info].addr + + cu->offset + cu->length + 2 * cu->offset_size - 4)) + return DW_DLV_NO_ENTRY; + + /* See whether there is another sibling available or whether this is + the end. */ + if (*die_addr == 0) + return DW_DLV_NO_ENTRY; + + /* There is more data. Create the data structure. */ + new_die = (Dwarf_Die) malloc (sizeof (struct Dwarf_Die_s)); + if (new_die == NULL) + { + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + +#ifdef DWARF_DEBUG + new_die->memtag = DW_DLA_DIE; +#endif + + /* Remember the address. */ + new_die->addr = die_addr; + + /* And the compile unit. */ + new_die->cu = cu; + + /* 7.5.2 Debugging Information Entry + + Each debugging information entry begins with an unsigned LEB128 + number containing the abbreviation code for the entry. */ + get_uleb128 (u128, die_addr); + + /* Find the abbreviation. */ + new_die->abbrev = __libdwarf_get_abbrev (dbg, cu, u128, error); + if (new_die->abbrev == NULL) + { + free (new_die); + return DW_DLV_ERROR; + } + + /* If we are looking for the first entry this must be a compile unit. */ + if (die == NULL && unlikely (new_die->abbrev->tag != DW_TAG_compile_unit)) + { + free (new_die); + __libdwarf_error (dbg, error, DW_E_1ST_NO_CU); + return DW_DLV_ERROR; + } + + *return_sub = new_die; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_srcfiles.c b/libdwarf/dwarf_srcfiles.c new file mode 100644 index 0000000..1090d83 --- /dev/null +++ b/libdwarf/dwarf_srcfiles.c @@ -0,0 +1,344 @@ +/* Return source files of compilation unit. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include + + +struct dirlist +{ + char *dir; + size_t len; + struct dirlist *next; +}; + +struct filelist +{ + char *name; + Dwarf_Unsigned mtime; + Dwarf_Unsigned length; + struct filelist *next; +}; + + +static int +read_file_names (Dwarf_Debug dbg, char *comp_dir, Dwarf_Small **linepp, + char ***result, Dwarf_Signed *nresult, Dwarf_Error *error) +{ + Dwarf_Small *linep = *linepp; + struct dirlist comp_dir_elem; + struct dirlist *dirlist; + unsigned int ndirlist; + struct dirlist **dirarray; + struct filelist *filelist = NULL; + unsigned int nfilelist = 0; + + /* First comes the list of directories. Add the compilation directory + first since the index zero is used for it. */ + comp_dir_elem.dir = comp_dir; + comp_dir_elem.len = comp_dir ? strlen (comp_dir) : 0; + comp_dir_elem.next = NULL; + dirlist = &comp_dir_elem; + ndirlist = 1; + + while (*linep != 0) + { + struct dirlist *new_dir = (struct dirlist *) alloca (sizeof (*new_dir)); + + new_dir->dir = (char *) linep; + new_dir->len = strlen ((char *) linep); + new_dir->next = dirlist; + dirlist = new_dir; + ++ndirlist; + linep += new_dir->len + 1; + } + /* Skip the final NUL byte. */ + ++linep; + + /* Rearrange the list in array form. */ + dirarray = (struct dirlist **) alloca (sizeof (*dirarray)); + while (ndirlist-- > 0) + { + dirarray[ndirlist] = dirlist; + dirlist = dirlist->next; + } + + /* Now read the files. */ + while (*linep != 0) + { + struct filelist *new_file = + (struct filelist *) alloca (sizeof (*new_file)); + char *fname; + size_t fnamelen; + Dwarf_Unsigned diridx; + + /* First comes the file name. */ + fname = (char *) linep; + fnamelen = strlen (fname); + linep += fnamelen + 1; + + /* Then the index. */ + get_uleb128 (diridx, linep); + if (unlikely (diridx >= ndirlist)) + { + __libdwarf_error (dbg, error, DW_E_INVALID_DIR_IDX); + return DW_DLV_ERROR; + } + + if (*fname == '/') + /* It's an absolute path. */ + new_file->name = strdup (fname); + else + { + new_file->name = (char *) malloc (dirarray[diridx]->len + 1 + + fnamelen + 1); + if (new_file->name != NULL) + { + char *cp = new_file->name; + + if (dirarray[diridx]->dir != NULL) + /* This value could be NULL in case the DW_AT_comp_dir + was not present. We cannot do much in this case. + The easiest thing is to convert the path in an + absolute path. */ + cp = stpcpy (cp, dirarray[diridx]->dir); + *cp++ = '/'; + strcpy (cp, fname); + } + } + if (new_file->name == NULL) + { + /* XXX Should we bother to free all the memory? */ + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + /* Next comes the modification time. */ + get_uleb128 (new_file->mtime, linep); + + /* Finally the length of the file. */ + get_uleb128 (new_file->length, linep); + + new_file->next = filelist; + filelist = new_file; + ++nfilelist; + } + + /* Put all the files in an array. */ + *result = (char **) malloc (nfilelist * sizeof (char *)); + if (*result == NULL) + { + /* XXX Should we bother to free all the memory? */ + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + *nresult = nfilelist; + while (nfilelist-- > 0) + { + (*result)[nfilelist] = filelist->name; + filelist = filelist->next; + } + + /* Provide caller address of next byte. */ + *linepp = linep + 1; + + return DW_DLV_OK; +} + + +int +dwarf_srcfiles (die, srcfiles, srcfilecount, error) + Dwarf_Die die; + char ***srcfiles; + Dwarf_Signed *srcfilecount; + Dwarf_Error *error; +{ + Dwarf_CU_Info cu = die->cu; + Dwarf_Debug dbg = cu->dbg; + Dwarf_Attribute stmt_list; + Dwarf_Attribute comp_dir_attr; + char *comp_dir; + Dwarf_Unsigned offset; + Dwarf_Small *linep; + Dwarf_Small *lineendp; + Dwarf_Small *header_start; + Dwarf_Unsigned header_length; + unsigned int unit_length; + unsigned int version; + unsigned int opcode_base; + int length; + int res; + + /* For now we haven't found anything. */ + *srcfilecount = 0; + + /* The die must be for a compilation unit. */ + if (die->abbrev->tag != DW_TAG_compile_unit) + { + __libdwarf_error (die->cu->dbg, error, DW_E_NO_CU); + return DW_DLV_ERROR; + } + + /* The die must have a statement list associated. */ + res = dwarf_attr (die, DW_AT_stmt_list, &stmt_list, error); + if (res != DW_DLV_OK) + return res; + + /* Get the offset into the .debug_line section. */ + res = dwarf_formudata (stmt_list, &offset, error); + if (res != DW_DLV_OK) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + return res; + } + + /* We need a .debug_line section. */ + if (dbg->sections[IDX_debug_line].addr == NULL) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_NO_DEBUG_LINE); + return DW_DLV_ERROR; + } + + linep = (Dwarf_Small *) dbg->sections[IDX_debug_line].addr + offset; + lineendp = ((Dwarf_Small *) dbg->sections[IDX_debug_line].addr + + dbg->sections[IDX_debug_line].size); + + /* Test whether at least the first 4 bytes are available. */ + if (unlikely (linep + 4 > lineendp)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get the compilation directory. */ + res = dwarf_attr (die, DW_AT_comp_dir, &comp_dir_attr, error); + if (unlikely (res == DW_DLV_ERROR) + || (res == DW_DLV_OK + && unlikely (dwarf_formstring (comp_dir_attr, &comp_dir, error) + == DW_DLV_ERROR))) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + else if (res == DW_DLV_OK) + dwarf_dealloc (dbg, comp_dir_attr, DW_DLA_ATTR); + else + comp_dir = NULL; + + /* Read the unit_length. */ + unit_length = read_4ubyte_unaligned (dbg, linep); + linep += 4; + length = 4; + if (unit_length == 0xffffffff) + { + if (unlikely (linep + 8 > lineendp)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + unit_length = read_8ubyte_unaligned (dbg, linep); + linep += 8; + length = 8; + } + + /* Check whether we have enough room in the section. */ + if (unlikely (linep + unit_length > lineendp)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + lineendp = linep + unit_length; + + /* The next element of the header is the version identifier. */ + version = read_2ubyte_unaligned (dbg, linep); + if (unlikely (version != DWARF_VERSION)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_VERSION_ERROR); + return DW_DLV_ERROR; + } + linep += 2; + + /* Next comes the header length. */ + if (length == 4) + { + header_length = read_4ubyte_unaligned (dbg, linep); + linep += 4; + } + else + { + header_length = read_8ubyte_unaligned (dbg, linep); + linep += 8; + } + header_start = linep; + + /* Next the minimum instruction length. Skip it. */ + ++linep; + + /* Then the flag determining the default value of the is_stmt + register. Skip it. */ + ++linep; + + /* Now the line base. Skip it. */ + ++linep; + + /* And the line range. Skip it. */ + ++linep; + + /* The opcode base. */ + opcode_base = *linep++; + + /* Skip the array with the standard opcode length. */ + linep += opcode_base - 1; + + /* Next the include directories and the file names. */ + if (unlikely (read_file_names (dbg, comp_dir, &linep, srcfiles, srcfilecount, + error) != DW_DLV_OK)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + return DW_DLV_ERROR; + } + + /* Consistency check. */ + if (unlikely (linep != header_start + header_length)) + { + int i; + + for (i = 0; i < *srcfilecount; ++i) + dwarf_dealloc (dbg, (*srcfiles)[i], DW_DLA_STRING); + dwarf_dealloc (dbg, *srcfiles, DW_DLA_LIST); + + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_srclang.c b/libdwarf/dwarf_srclang.c new file mode 100644 index 0000000..4514063 --- /dev/null +++ b/libdwarf/dwarf_srclang.c @@ -0,0 +1,31 @@ +/* Return source language associated with die. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + + +int +dwarf_srclang (die, return_lang, error) + Dwarf_Die die; + Dwarf_Unsigned *return_lang; + Dwarf_Error *error; +{ + return __libdwarf_getconstant (die, DW_AT_language, return_lang, error); +} diff --git a/libdwarf/dwarf_srclines.c b/libdwarf/dwarf_srclines.c new file mode 100644 index 0000000..796b790 --- /dev/null +++ b/libdwarf/dwarf_srclines.c @@ -0,0 +1,745 @@ +/* Return source lines of compilation unit. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include + + +struct dirlist +{ + char *dir; + size_t len; + struct dirlist *next; +}; + +struct filelist +{ + char *name; + Dwarf_Unsigned mtime; + Dwarf_Unsigned length; + struct filelist *next; +}; + +struct linelist +{ + Dwarf_Line line; + struct linelist *next; +}; + + +/* Adds a new line to the matrix. We cannot definte a function because + we want to use alloca. */ +#define NEW_LINE(end_seq) \ + do { \ + /* Add the new line. */ \ + new_line = (struct linelist *) alloca (sizeof (struct linelist)); \ + new_line->line = (Dwarf_Line) malloc (sizeof (struct Dwarf_Line_s)); \ + if (new_line == NULL) \ + { \ + /* XXX Should we bother to free the memory? */ \ + __libdwarf_error (dbg, error, DW_E_NOMEM); \ + return DW_DLV_ERROR; \ + } \ + \ + /* Set the line information. */ \ + new_line->line->addr = address; \ + new_line->line->file = file; \ + new_line->line->line = line; \ + new_line->line->column = column; \ + new_line->line->is_stmt = is_stmt; \ + new_line->line->basic_block = basic_block; \ + new_line->line->end_sequence = end_seq; \ + new_line->line->prologue_end = prologue_end; \ + new_line->line->epilogue_begin = epilogue_begin; \ + \ + new_line->next = linelist; \ + linelist = new_line; \ + ++nlinelist; \ + } while (0) + + +int +dwarf_srclines (die, linebuf, linecount, error) + Dwarf_Die die; + Dwarf_Line **linebuf; + Dwarf_Signed *linecount; + Dwarf_Error *error; +{ + Dwarf_CU_Info cu = die->cu; + Dwarf_Debug dbg = cu->dbg; + Dwarf_Attribute stmt_list; + Dwarf_Attribute comp_dir_attr; + char *comp_dir; + Dwarf_Unsigned offset; + Dwarf_Small *linep; + Dwarf_Small *lineendp; + Dwarf_Small *header_start; + Dwarf_Unsigned header_length; + Dwarf_File files; + Dwarf_Line *lines; + unsigned int unit_length; + unsigned int version; + unsigned int opcode_base; + Dwarf_Small *standard_opcode_lengths; + unsigned int minimum_instruction_length; + unsigned int default_is_stmt; + int line_base; + unsigned int line_range; + int length; + struct dirlist comp_dir_elem; + struct dirlist *dirlist; + unsigned int ndirlist; + struct dirlist **dirarray; + struct filelist *filelist; + unsigned int nfilelist; + struct filelist null_file; + Dwarf_Unsigned address; + size_t file; + size_t line; + size_t column; + int is_stmt; + int basic_block; + int prologue_end; + int epilogue_begin; + struct linelist *linelist; + unsigned int nlinelist; + int res; + + /* The die must be for a compilation unit. */ + if (unlikely (die->abbrev->tag != DW_TAG_compile_unit)) + { + __libdwarf_error (die->cu->dbg, error, DW_E_NO_CU); + return DW_DLV_ERROR; + } + + /* The die must have a statement list associated. */ + res = dwarf_attr (die, DW_AT_stmt_list, &stmt_list, error); + if (unlikely (res != DW_DLV_OK)) + return res; + + /* Get the offset into the .debug_line section. */ + res = dwarf_formudata (stmt_list, &offset, error); + if (unlikely (res != DW_DLV_OK)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + return res; + } + + /* We need a .debug_line section. */ + if (dbg->sections[IDX_debug_line].addr == NULL) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_NO_DEBUG_LINE); + return DW_DLV_ERROR; + } + + linep = (Dwarf_Small *) dbg->sections[IDX_debug_line].addr + offset; + lineendp = ((Dwarf_Small *) dbg->sections[IDX_debug_line].addr + + dbg->sections[IDX_debug_line].size); + + /* Test whether at least the first 4 bytes are available. */ + if (unlikely (linep + 4 > lineendp)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Get the compilation directory. */ + res = dwarf_attr (die, DW_AT_comp_dir, &comp_dir_attr, error); + if (unlikely (res == DW_DLV_ERROR) + || (res == DW_DLV_OK + && unlikely (dwarf_formstring (comp_dir_attr, &comp_dir, error) + == DW_DLV_ERROR))) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + else if (res == DW_DLV_OK) + dwarf_dealloc (dbg, comp_dir_attr, DW_DLA_ATTR); + else + comp_dir = NULL; + + /* Read the unit_length. */ + unit_length = read_4ubyte_unaligned (dbg, linep); + linep += 4; + length = 4; + if (unit_length == 0xffffffff) + { + if (unlikely (linep + 8 > lineendp)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + unit_length = read_8ubyte_unaligned (dbg, linep); + linep += 8; + length = 8; + } + + /* Check whether we have enough room in the section. */ + if (unlikely (linep + unit_length > lineendp)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + lineendp = linep + unit_length; + + /* The next element of the header is the version identifier. */ + version = read_2ubyte_unaligned (dbg, linep); + if (unlikely (version != DWARF_VERSION)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_VERSION_ERROR); + return DW_DLV_ERROR; + } + linep += 2; + + /* Next comes the header length. */ + if (length == 4) + { + header_length = read_4ubyte_unaligned (dbg, linep); + linep += 4; + } + else + { + header_length = read_8ubyte_unaligned (dbg, linep); + linep += 8; + } + header_start = linep; + + /* Next the minimum instruction length. */ + minimum_instruction_length = *linep++; + + /* Then the flag determining the default value of the is_stmt + register. */ + default_is_stmt = *linep++; + + /* Now the line base. */ + line_base = *((signed char *) linep)++; + + /* And the line range. */ + line_range = *linep++; + + /* The opcode base. */ + opcode_base = *linep++; + + /* Remember array with the standard opcode length (-1 to account for + the opcode with value zero not being mentioned). */ + standard_opcode_lengths = linep - 1; + linep += opcode_base - 1; + + /* First comes the list of directories. Add the compilation directory + first since the index zero is used for it. */ + comp_dir_elem.dir = comp_dir; + comp_dir_elem.len = comp_dir ? strlen (comp_dir) : 0; + comp_dir_elem.next = NULL; + dirlist = &comp_dir_elem; + ndirlist = 1; + + while (*linep != 0) + { + struct dirlist *new_dir = (struct dirlist *) alloca (sizeof (*new_dir)); + + new_dir->dir = (char *) linep; + new_dir->len = strlen ((char *) linep); + new_dir->next = dirlist; + dirlist = new_dir; + ++ndirlist; + linep += new_dir->len + 1; + } + /* Skip the final NUL byte. */ + ++linep; + + /* Rearrange the list in array form. */ + dirarray = (struct dirlist **) alloca (sizeof (*dirarray)); + while (ndirlist-- > 0) + { + dirarray[ndirlist] = dirlist; + dirlist = dirlist->next; + } + + comp_dir_elem.dir = comp_dir; + comp_dir_elem.len = comp_dir ? strlen (comp_dir) : 0; + comp_dir_elem.next = NULL; + dirlist = &comp_dir_elem; + ndirlist = 1; + + /* Now read the files. */ + null_file.name = "???"; + null_file.mtime = 0; + null_file.length = 0; + null_file.next = NULL; + filelist = &null_file; + nfilelist = 1; + + while (*linep != 0) + { + struct filelist *new_file = + (struct filelist *) alloca (sizeof (*new_file)); + char *fname; + size_t fnamelen; + Dwarf_Unsigned diridx; + + /* First comes the file name. */ + fname = (char *) linep; + fnamelen = strlen (fname); + linep += fnamelen + 1; + + /* Then the index. */ + get_uleb128 (diridx, linep); + if (unlikely (diridx >= ndirlist)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DIR_IDX); + return DW_DLV_ERROR; + } + + if (*fname == '/') + /* It's an absolute path. */ + new_file->name = strdup (fname); + else + { + new_file->name = (char *) malloc (dirarray[diridx]->len + 1 + + fnamelen + 1); + if (new_file->name != NULL) + { + char *cp = new_file->name; + + if (dirarray[diridx]->dir != NULL) + /* This value could be NULL in case the DW_AT_comp_dir + was not present. We cannot do much in this case. + The easiest thing is to convert the path in an + absolute path. */ + cp = stpcpy (cp, dirarray[diridx]->dir); + *cp++ = '/'; + strcpy (cp, fname); + } + } + if (new_file->name == NULL) + { + /* XXX Should we bother to free all the memory? */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + /* Next comes the modification time. */ + get_uleb128 (new_file->mtime, linep); + + /* Finally the length of the file. */ + get_uleb128 (new_file->length, linep); + + new_file->next = filelist; + filelist = new_file; + ++nfilelist; + } + ++linep; + + /* Consistency check. */ + if (unlikely (linep != header_start + header_length)) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* We are about to process the statement program. Initialize the + state machine registers (see 6.2.2 in the v2.1 specification). */ + address = 0; + file = 1; + line = 1; + column = 0; + is_stmt = default_is_stmt; + basic_block = 0; + prologue_end = 0; + epilogue_begin = 0; + + /* Process the instructions. */ + linelist = NULL; + nlinelist = 0; + while (linep < lineendp) + { + struct linelist *new_line; + unsigned int opcode; + unsigned int u128; + int s128; + + /* Read the opcode. */ + opcode = *linep++; + + /* Is this a special opcode? */ + if (likely (opcode >= opcode_base)) + { + /* Yes. Handling this is quite easy since the opcode value + is computed with + + opcode = (desired line increment - line_base) + + (line_range * address advance) + opcode_base + */ + int line_increment = line_base + (opcode - opcode_base) % line_range; + unsigned int address_increment = (minimum_instruction_length + * ((opcode - opcode_base) + / line_range)); + + /* Perform the increments. */ + line += line_increment; + address += address_increment; + + /* Add a new line with the current state machine values. */ + NEW_LINE (0); + + /* Reset the flags. */ + basic_block = 0; + prologue_end = 0; + epilogue_begin = 0; + } + else if (opcode == 0) + { + /* This an extended opcode. */ + unsigned int len; + + /* The length. */ + len = *linep++; + + /* The sub-opecode. */ + opcode = *linep++; + + switch (opcode) + { + case DW_LNE_end_sequence: + /* Add a new line with the current state machine values. + The is the end of the sequence. */ + NEW_LINE (1); + + /* Reset the registers. */ + address = 0; + file = 1; + line = 1; + column = 0; + is_stmt = default_is_stmt; + basic_block = 0; + prologue_end = 0; + epilogue_begin = 0; + break; + + case DW_LNE_set_address: + if (cu->address_size == 4) + address = read_4ubyte_unaligned (dbg, linep); + else + address = read_8ubyte_unaligned (dbg, linep); + linep += cu->address_size; + break; + + case DW_LNE_define_file: + { + struct filelist *new_file; + char *fname; + size_t fnamelen; + unsigned int diridx; + Dwarf_Unsigned mtime; + Dwarf_Unsigned length; + + fname = (char *) linep; + fnamelen = strlen (fname); + linep += fnamelen + 1; + + get_uleb128 (diridx, linep); + get_uleb128 (mtime, linep); + get_uleb128 (length, linep); + + new_file = (struct filelist *) alloca (sizeof (*new_file)); + if (fname[0] == '/') + new_file->name = strdup (fname); + else + { + + new_file->name = (char *) malloc (dirarray[diridx]->len + 1 + + fnamelen + 1); + if (new_file->name != NULL) + { + char *cp = new_file->name; + + if (dirarray[diridx]->dir != NULL) + /* This value could be NULL in case the + DW_AT_comp_dir was not present. We + cannot do much in this case. The easiest + thing is to convert the path in an + absolute path. */ + cp = stpcpy (cp, dirarray[diridx]->dir); + *cp++ = '/'; + strcpy (cp, fname); + } + } + if (new_file->name == NULL) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + new_file->mtime = mtime; + new_file->length = length; + new_file->next = filelist; + filelist = new_file; + ++nfilelist; + } + break; + + default: + /* Unknown, ignore it. */ + linep += len - 1; + break; + } + } + else if (opcode <= DW_LNS_set_epilog_begin) + { + /* This is a known standard opcode. */ + switch (opcode) + { + case DW_LNS_copy: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + /* Add a new line with the current state machine values. */ + NEW_LINE (0); + + /* Reset the flags. */ + basic_block = 0; + /* XXX Whether the following two lines are necessary is + unclear. I guess the current v2.1 specification has + a bug in that it says clearing these two registers is + not necessary. */ + prologue_end = 0; + epilogue_begin = 0; + break; + + case DW_LNS_advance_pc: + /* Takes one uleb128 parameter which is added to the address. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + get_uleb128 (u128, linep); + address += minimum_instruction_length * u128; + break; + + case DW_LNS_advance_line: + /* Takes one sleb128 parameter which is added to the line. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + get_sleb128 (s128, linep); + line += s128; + break; + + case DW_LNS_set_file: + /* Takes one uleb128 parameter which is stored in file. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + get_uleb128 (u128, linep); + file = u128; + break; + + case DW_LNS_set_column: + /* Takes one uleb128 parameter which is stored in column. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + get_uleb128 (u128, linep); + column = u128; + break; + + case DW_LNS_negate_stmt: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + is_stmt = 1 - is_stmt; + break; + + case DW_LNS_set_basic_block: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + basic_block = 1; + break; + + case DW_LNS_const_add_pc: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + address += (minimum_instruction_length + * ((255 - opcode_base) / line_range)); + break; + + case DW_LNS_fixed_advance_pc: + /* Takes one 16 bit parameter which is added to the address. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + address += read_2ubyte_unaligned (dbg, linep); + linep += 2; + break; + + case DW_LNS_set_prologue_end: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + prologue_end = 1; + break; + + case DW_LNS_set_epilog_begin: + /* Takes no argument. */ + if (unlikely (standard_opcode_lengths[opcode] != 0)) + { + /* XXX Free memory. */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_INVALID_DWARF); + return DW_DLV_ERROR; + } + + epilogue_begin = 1; + break; + } + } + else + { + /* This is a new opcode the generator but not we know about. + Read the parameters associated with it but then discard + everything. */ + int n; + + /* Read all the parameters for this opcode. */ + for (n = standard_opcode_lengths[opcode]; n > 0; --n) + { + Dwarf_Unsigned u128; + get_uleb128 (u128, linep); + } + + /* Next round, ignore this opcode. */ + continue; + } + } + + /* Put all the files in an array. */ + files = (Dwarf_File) malloc (sizeof (struct Dwarf_File_s) + + nfilelist * sizeof (Dwarf_Fileinfo)); + if (files == NULL) + { + /* XXX Should we bother to free all the memory? */ + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + files->nfiles = nfilelist; + while (nfilelist-- > 0) + { + files->info[nfilelist].name = filelist->name; + files->info[nfilelist].mtime = filelist->mtime; + files->info[nfilelist].length = filelist->length; + filelist = filelist->next; + } + + /* Remember the debugging descriptor. */ + files->dbg = dbg; + + /* Now put the lines in an array. */ + lines = (Dwarf_Line *) malloc (nlinelist * sizeof (Dwarf_Line)); + if (lines == NULL) + { + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + __libdwarf_error (dbg, error, DW_E_NOMEM); + return DW_DLV_ERROR; + } + + *linebuf = lines; + *linecount = nlinelist; + + while (nlinelist--) + { + lines[nlinelist] = linelist->line; + linelist->line->files = files; + linelist = linelist->next; + } + + dwarf_dealloc (dbg, stmt_list, DW_DLA_ATTR); + + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_tag.c b/libdwarf/dwarf_tag.c new file mode 100644 index 0000000..3c4d36e --- /dev/null +++ b/libdwarf/dwarf_tag.c @@ -0,0 +1,30 @@ +/* Return tag of die. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_tag (die, tagval, error) + Dwarf_Die die; + Dwarf_Half *tagval; + Dwarf_Error *error; +{ + *tagval = die->abbrev->tag; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_whatattr.c b/libdwarf/dwarf_whatattr.c new file mode 100644 index 0000000..9887f2e --- /dev/null +++ b/libdwarf/dwarf_whatattr.c @@ -0,0 +1,30 @@ +/* Return code of attribute. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_whatattr (attr, return_attr, error) + Dwarf_Attribute attr; + Dwarf_Half *return_attr; + Dwarf_Error *error; +{ + *return_attr = attr->code; + return DW_DLV_OK; +} diff --git a/libdwarf/dwarf_whatform.c b/libdwarf/dwarf_whatform.c new file mode 100644 index 0000000..5cb67b3 --- /dev/null +++ b/libdwarf/dwarf_whatform.c @@ -0,0 +1,30 @@ +/* Return form of attribute. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +int +dwarf_whatform (attr, return_form, error) + Dwarf_Attribute attr; + Dwarf_Half *return_form; + Dwarf_Error *error; +{ + *return_form = attr->form; + return DW_DLV_OK; +} diff --git a/libdwarf/libdwarf.h b/libdwarf/libdwarf.h new file mode 100644 index 0000000..37c958c --- /dev/null +++ b/libdwarf/libdwarf.h @@ -0,0 +1,514 @@ +/* Interface for libdwarf. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBDWARF_H +#define _LIBDWARF_H 1 + +#include +#include + +/* Basic data types. */ + +/* Used for boolean values. */ +typedef int Dwarf_Bool; + +/* Numeric values of different sizes. */ +typedef uint8_t Dwarf_Small; +typedef uint16_t Dwarf_Half; +typedef uint64_t Dwarf_Unsigned; +typedef int64_t Dwarf_Signed; + +/* Offsets in the debugging sections. */ +typedef uint64_t Dwarf_Off; + +/* Program counter value in the target object file. */ +typedef uint64_t Dwarf_Addr; + +/* Address in the host process. */ +typedef void *Dwarf_Ptr; + + +/* Location record. */ +typedef struct + { + Dwarf_Small lr_atom; /* Operation */ + Dwarf_Unsigned lr_number; /* Operand */ + Dwarf_Unsigned lr_number2; /* Possible second operand */ + Dwarf_Unsigned lr_offset; /* Offset in location expression */ + } Dwarf_Loc; + + +/* Location description. */ +typedef struct + { + Dwarf_Addr ld_lopc; /* Beginning of range */ + Dwarf_Addr ld_hipc; /* End of range */ + Dwarf_Half ld_cents; /* Number of location records */ + Dwarf_Loc *ld_s; /* Array of location records */ + } Dwarf_Locdesc; + + +/* Error handler function. */ +typedef struct Dwarf_Error_s *Dwarf_Error; /* Forward declaration. */ +typedef void (*Dwarf_Handler) (Dwarf_Error *, Dwarf_Ptr); + +/* Descriptor for block of uninterpreted data. */ +typedef struct + { + Dwarf_Unsigned bl_len; + Dwarf_Ptr bl_data; + } Dwarf_Block; + + +/* Descriptor for libdwarf session. */ +typedef struct Dwarf_Debug_s *Dwarf_Debug; + +/* Descriptor for DWARF DIE. */ +typedef struct Dwarf_Die_s *Dwarf_Die; + +/* Descriptor for DWARF attribute list. */ +typedef struct Dwarf_Attribute_s *Dwarf_Attribute; + +/* Descriptor for source lines. */ +typedef struct Dwarf_Line_s *Dwarf_Line; + +/* Descriptor for global name. */ +typedef struct Dwarf_Global_s *Dwarf_Global; + +/* Descriptor for address range. */ +typedef struct Dwarf_Arange_s *Dwarf_Arange; + +/* Descriptor for common information entry. */ +typedef struct Dwarf_Cie_s *Dwarf_Cie; + +/* Descriptor for frame descriptor entry. */ +typedef struct Dwarf_Fde_s *Dwarf_Fde; + +/* Descriptor for abbreviations. */ +typedef struct Dwarf_Abbrev_s *Dwarf_Abbrev; + + +/* Return values. */ +enum + { + DW_DLV_NO_ENTRY = -1, /* No error, but no entry. */ + DW_DLV_OK = 0, /* Success. */ + DW_DLV_ERROR = 1, /* Failure. */ + }; + + +/* Values for ACCESS parameter of 'dwarf_init' and 'dwarf_elf_init'. */ +enum + { + DW_DLC_READ = 0, /* Read-only access. */ + DW_DLC_WRITE = 1, /* Write-only access. */ + DW_DLC_RDWR = 2 /* Read-write access. */ + }; + + +/* Open file associates with FD for use with the other functions of + this library. Set the error handler and the parameter passed. */ +extern int dwarf_init (int fd, Dwarf_Unsigned access, + Dwarf_Handler errhand, Dwarf_Ptr errarg, + Dwarf_Debug *dbg, Dwarf_Error *errdesc); + +/* Similar to `dwarf_init' but instead of a file descriptor of ELF + descriptor is passed. */ +extern int dwarf_elf_init (Elf *elf, Dwarf_Unsigned access, + Dwarf_Handler errhand, Dwarf_Ptr errarg, + Dwarf_Debug *dbg, Dwarf_Error *errdesc); + +/* Return ELF handle. */ +extern int dwarf_get_elf_init (Dwarf_Debug dbg, Elf **elf, + Dwarf_Error *errdesc); + +/* Free resources allocated for debug handle. */ +extern int dwarf_finish (Dwarf_Debug dbg, Dwarf_Error *errdesc); + + +/* Return information about current and find new compile unit header. */ +extern int dwarf_next_cu_header (Dwarf_Debug dbg, + Dwarf_Unsigned *cu_header_length, + Dwarf_Half *version_stamp, + Dwarf_Unsigned *abbrev_offset, + Dwarf_Half *address_size, + Dwarf_Unsigned *next_cu_header, + Dwarf_Error *errdesc); + +/* Return sibling of given DIE. */ +extern int dwarf_siblingof (Dwarf_Debug dbg, Dwarf_Die die, + Dwarf_Die *return_sub, Dwarf_Error *errdesc); + +/* Return child of DIE. */ +extern int dwarf_child (Dwarf_Die die, Dwarf_Die *return_kid, + Dwarf_Error *errdesc); + +/* Return DIE at given offset. */ +extern int dwarf_offdie (Dwarf_Debug dbg, Dwarf_Off offset, + Dwarf_Die *return_die, Dwarf_Error *errdesc); + + +/* Return tag of DIE. */ +extern int dwarf_tag (Dwarf_Die die, Dwarf_Half *tagval, Dwarf_Error *errdesc); + +/* Return offset of DIE in .debug_info section. */ +extern int dwarf_dieoffset (Dwarf_Die die, Dwarf_Off *return_offset, + Dwarf_Error *errdesc); + +/* Return offset of DIE in compile unit data. */ +extern int dwarf_die_CU_offset (Dwarf_Die die, Dwarf_Off *return_offset, + Dwarf_Error *errdesc); + +/* Return name attribute of DIE. */ +extern int dwarf_diename (Dwarf_Die die, char **return_name, + Dwarf_Error *errdesc); + +/* Return list of attributes for DIE. */ +extern int dwarf_attrlist (Dwarf_Die die, Dwarf_Attribute **attrbuf, + Dwarf_Signed *attrcount, Dwarf_Error *errdesc); + +/* Determine whether DIE has attribute specified of given type. */ +extern int dwarf_hasattr (Dwarf_Die die, Dwarf_Half attr, + Dwarf_Bool *return_bool, Dwarf_Error *errdesc); + +/* Return DIE attribute with specified of given type. */ +extern int dwarf_attr (Dwarf_Die die, Dwarf_Half attr, + Dwarf_Attribute *return_attr, Dwarf_Error *errdesc); + +/* Return low program counter value associated with die. */ +extern int dwarf_lowpc (Dwarf_Die die, Dwarf_Addr *return_lowpc, + Dwarf_Error *errdesc); + +/* Return high program counter value associated with die. */ +extern int dwarf_highpc (Dwarf_Die die, Dwarf_Addr *return_lowpc, + Dwarf_Error *errdesc); + +/* Return byte size value associated with die. */ +extern int dwarf_bytesize (Dwarf_Die die, Dwarf_Unsigned *return_size, + Dwarf_Error *errdesc); + +/* Return bit size value associated with die. */ +extern int dwarf_bitsize (Dwarf_Die die, Dwarf_Unsigned *return_size, + Dwarf_Error *errdesc); + +/* Return bit offset value associated with die. */ +extern int dwarf_bitoffset (Dwarf_Die die, Dwarf_Unsigned *return_size, + Dwarf_Error *errdesc); + +/* Return source language associated with die. */ +extern int dwarf_srclang (Dwarf_Die die, Dwarf_Unsigned *return_lang, + Dwarf_Error *errdesc); + +/* Return source language associated with die. */ +extern int dwarf_arrayorder (Dwarf_Die die, Dwarf_Unsigned *return_order, + Dwarf_Error *errdesc); + + +/* Determine whether attribute has given form. */ +extern int dwarf_hasform (Dwarf_Attribute attr, Dwarf_Half form, + Dwarf_Bool *return_hasform, Dwarf_Error *errdesc); + +/* Return form of attribute. */ +extern int dwarf_whatform (Dwarf_Attribute attr, Dwarf_Half *return_form, + Dwarf_Error *errdesc); + +/* Return code of attribute. */ +extern int dwarf_whatattr (Dwarf_Attribute attr, Dwarf_Half *return_attr, + Dwarf_Error *errdesc); + +/* Return compile-unit relative offset of reference associated with form. */ +extern int dwarf_formref (Dwarf_Attribute attr, Dwarf_Off *return_offset, + Dwarf_Error *errdesc); + +/* Return .debug_info section global offset of reference associated + with form. */ +extern int dwarf_global_formref (Dwarf_Attribute attr, + Dwarf_Off *return_offset, + Dwarf_Error *errdesc); + +/* Return address represented by attribute. */ +extern int dwarf_formaddr (Dwarf_Attribute attr, Dwarf_Addr *return_addr, + Dwarf_Error *errdesc); + +/* Return flag represented by attribute. */ +extern int dwarf_formflag (Dwarf_Attribute attr, Dwarf_Bool *return_bool, + Dwarf_Error *errdesc); + +/* Return unsigned constant represented by attribute. */ +extern int dwarf_formudata (Dwarf_Attribute attr, Dwarf_Unsigned *return_uval, + Dwarf_Error *errdesc); + +/* Return signed constant represented by attribute. */ +extern int dwarf_formsdata (Dwarf_Attribute attr, Dwarf_Signed *return_uval, + Dwarf_Error *errdesc); + +/* Return block of uninterpreted data represented by attribute. */ +extern int dwarf_formblock (Dwarf_Attribute attr, Dwarf_Block **return_block, + Dwarf_Error *errdesc); + +/* Return string represented by attribute. */ +extern int dwarf_formstring (Dwarf_Attribute attr, char **return_string, + Dwarf_Error *errdesc); + +/* Return location expression list. */ +extern int dwarf_loclist (Dwarf_Attribute attr, Dwarf_Locdesc **llbuf, + Dwarf_Signed *listlen, Dwarf_Error *errdesc); + + +/* Return source lines of compilation unit. */ +extern int dwarf_srclines (Dwarf_Die die, Dwarf_Line **linebuf, + Dwarf_Signed *linecount, Dwarf_Error *errdesc); + +/* Return files used in compilation unit. */ +extern int dwarf_srcfiles (Dwarf_Die die, char ***srcfiles, + Dwarf_Signed *srcfilecount, Dwarf_Error *errdesc); + +/* Determine whether line is the beginning of a statement. */ +extern int dwarf_linebeginstatement (Dwarf_Line line, Dwarf_Bool *return_bool, + Dwarf_Error *errdesc); + +/* Determine whether line is marked as ending a text sequence. */ +extern int dwarf_lineendsequence (Dwarf_Line line, Dwarf_Bool *return_bool, + Dwarf_Error *errdesc); + +/* Return source statement line number. */ +extern int dwarf_lineno (Dwarf_Line line, Dwarf_Unsigned *return_lineno, + Dwarf_Error *errdesc); + +/* Return address associate with line. */ +extern int dwarf_lineaddr (Dwarf_Line line, Dwarf_Addr *return_lineaddr, + Dwarf_Error *errdesc); + +/* Return column at which the statement begins. */ +extern int dwarf_lineoff (Dwarf_Line line, Dwarf_Signed *return_lineoff, + Dwarf_Error *errdesc); + +/* Return source file for line. */ +extern int dwarf_linesrc (Dwarf_Line line, char **return_linesrc, + Dwarf_Error *errdesc); + +/* Determine whether line is marked as beginning a basic block. */ +extern int dwarf_lineblock (Dwarf_Line line, Dwarf_Bool *return_bool, + Dwarf_Error *errdesc); + +/* Determine whether line is marked as ending the prologue. */ +extern int dwarf_lineprologueend (Dwarf_Line line, Dwarf_Bool *return_bool, + Dwarf_Error *errdesc); + +/* Determine whether line is marked as beginning the epilogue. */ +extern int dwarf_lineepiloguebegin (Dwarf_Line line, Dwarf_Bool *return_bool, + Dwarf_Error *errdesc); + + +/* Return list of global definitions. */ +extern int dwarf_get_globals (Dwarf_Debug dbg, Dwarf_Global **globals, + Dwarf_Signed *return_count, + Dwarf_Error *errdesc); + +/* Return name for global definition. */ +extern int dwarf_globname (Dwarf_Global global, char **return_name, + Dwarf_Error *errdesc); + +/* Return DIE offset for global definition. */ +extern int dwarf_global_die_offset (Dwarf_Global global, + Dwarf_Off *return_offset, + Dwarf_Error *errdesc); + +/* Return offset of header of compile unit containing the global definition. */ +extern int dwarf_global_cu_offset (Dwarf_Global global, + Dwarf_Off *return_offset, + Dwarf_Error *errdesc); + +/* Return name, DIE offset, and offset of the compile unit DIE for the + global definition. */ +extern int dwarf_global_name_offsets (Dwarf_Global global, char **return_name, + Dwarf_Off *die_offset, + Dwarf_Off *cu_offset, + Dwarf_Error *errdesc); + + +/* Find start of macro value. */ +extern char *dwarf_find_macro_value_start (char *macro_string); + + +/* Return string from debug string section. */ +extern int dwarf_get_str (Dwarf_Debug dbg, Dwarf_Off offset, char **string, + Dwarf_Signed *returned_str_len, + Dwarf_Error *errdesc); + + +/* Return list address ranges. */ +extern int dwarf_get_aranges (Dwarf_Debug dbg, Dwarf_Arange **aranges, + Dwarf_Signed *return_count, + Dwarf_Error *errdesc); + +/* Find matching range for address. */ +extern int dwarf_get_arange (Dwarf_Arange *aranges, + Dwarf_Unsigned arange_count, Dwarf_Addr address, + Dwarf_Arange *return_arange, + Dwarf_Error *errdesc); + +/* Return offset of compile unit DIE containing the range. */ +extern int dwarf_get_cu_die_offset (Dwarf_Arange arange, + Dwarf_Off *return_offset, + Dwarf_Error *errdesc); + +/* Return start, length, and CU DIE offset of range. */ +extern int dwarf_get_arange_info (Dwarf_Arange arange, Dwarf_Addr *start, + Dwarf_Unsigned *length, + Dwarf_Off *cu_die_offset, + Dwarf_Error *errdesc); + + +/* Frame descriptor handling. */ + +/* Get frame descriptions. GCC version using .eh_frame. */ +extern int dwarf_get_fde_list_eh (Dwarf_Debug dbg, Dwarf_Cie **cie_data, + Dwarf_Signed *cie_element_count, + Dwarf_Fde **fde_data, + Dwarf_Signed *fde_element_count, + Dwarf_Error *errdesc); + +/* Get CIE of FDE. */ +extern int dwarf_get_cie_of_fde (Dwarf_Fde fde, Dwarf_Cie *return_cie, + Dwarf_Error *errdesc); + +/* Get information about the function range. */ +extern int dwarf_get_fde_range (Dwarf_Fde fde, Dwarf_Addr *low_pc, + Dwarf_Unsigned *func_length, + Dwarf_Ptr *fde_bytes, + Dwarf_Unsigned *fde_byte_length, + Dwarf_Off *cie_offset, Dwarf_Signed *cie_index, + Dwarf_Off *fde_offset, Dwarf_Error *errdesc); + +/* Get information about CIE. */ +extern int dwarf_get_cie_info (Dwarf_Cie cie, Dwarf_Unsigned *bytes_in_cie, + Dwarf_Small *version, char **augmenter, + Dwarf_Unsigned *code_alignment_factor, + Dwarf_Signed *data_alignment_factor, + Dwarf_Half *return_address_register, + Dwarf_Ptr *initial_instructions, + Dwarf_Unsigned *initial_instructions_length, + Dwarf_Error *errdesc); + +/* Get frame construction instructions of FDE. */ +extern int dwarf_get_fde_instr_bytes (Dwarf_Fde fde, Dwarf_Ptr *outinstrs, + Dwarf_Unsigned *outlen, + Dwarf_Error *errdesc); + +/* Get nth frame descriptions. */ +extern int dwarf_get_fde_n (Dwarf_Fde *fde_data, Dwarf_Unsigned fde_index, + Dwarf_Fde *returned_fde, Dwarf_Error *errdesc); + +/* Find FDE for given address. */ +extern int dwarf_get_fde_at_pc (Dwarf_Fde *fde_data, Dwarf_Addr pc_of_interest, + Dwarf_Fde *returned_fde, Dwarf_Addr *lopc, + Dwarf_Addr *hipc, Dwarf_Error *errdesc); + + +/* Return location list entry. */ +extern int dwarf_get_loclist_entry (Dwarf_Debug dbg, Dwarf_Unsigned offset, + Dwarf_Addr *hipc_offset, + Dwarf_Addr *lopc_offset, Dwarf_Ptr *data, + Dwarf_Unsigned *entry_len, + Dwarf_Unsigned *next_entry, + Dwarf_Error *errdesc); + + +/* Get abbreviation record. */ +extern int dwarf_get_abbrev (Dwarf_Debug dbg, + Dwarf_Unsigned offset, + Dwarf_Abbrev *returned_abbrev, + Dwarf_Unsigned *length, + Dwarf_Unsigned *attr_count, Dwarf_Error *errdesc); + +/* Get tag of abbreviation record. */ +extern int dwarf_get_abbrev_tag (Dwarf_Abbrev abbrev, Dwarf_Half *return_tag, + Dwarf_Error *errdesc); + +/* Get code of abbreviation record. */ +extern int dwarf_get_abbrev_code (Dwarf_Abbrev abbrev, + Dwarf_Unsigned *return_code, + Dwarf_Error *errdesc); + +/* Get children flag of abbreviation record. */ +extern int dwarf_get_abbrev_children_flag (Dwarf_Abbrev abbrev, + Dwarf_Signed *return_flag, + Dwarf_Error *errdesc); + +/* Get attribute from abbreviation record. */ +extern int dwarf_get_abbrev_entry (Dwarf_Abbrev abbrev, Dwarf_Signed idx, + Dwarf_Half *attr_num, Dwarf_Signed *form, + Dwarf_Off *offset, Dwarf_Error *errdesc); + + +/* Memory handling. */ + +/* Values for ALLOC_TYPE parameter of 'dwarf_dealloc'. */ +enum + { + DW_DLA_NONE = 0, + DW_DLA_STRING, /* char* */ + DW_DLA_LOC, /* Dwarf_Loc */ + DW_DLA_LOCDESC, /* Dwarf_Locdesc */ + DW_DLA_ELLIST, /* Dwarf_Ellist */ + DW_DLA_BOUNDS, /* Dwarf_Bounds */ + DW_DLA_BLOCK, /* Dwarf_Block */ + DW_DLA_DEBUG, /* Dwarf_Debug */ + DW_DLA_DIE, /* Dwarf_Die */ + DW_DLA_LINE, /* Dwarf_Line */ + DW_DLA_ATTR, /* Dwarf_Attribute */ + DW_DLA_TYPE, /* Dwarf_Type */ + DW_DLA_SUBSCR, /* Dwarf_Subscr */ + DW_DLA_GLOBAL, /* Dwarf_Global */ + DW_DLA_ERROR, /* Dwarf_Error */ + DW_DLA_LIST, /* a list */ + DW_DLA_LINEBUF, /* Dwarf_Line* */ + DW_DLA_ARANGE, /* Dwarf_Arange */ + DW_DLA_ABBREV, /* Dwarf_Abbrev */ + DW_DLA_FRAME_OP, /* Dwarf_Frame_Op */ + DW_DLA_CIE, /* Dwarf_Cie */ + DW_DLA_FDE, /* Dwarf_Fde */ + DW_DLA_LOC_BLOCK, /* Dwarf_Loc Block */ + DW_DLA_FRAME_BLOCK, /* Dwarf_Frame Block */ + DW_DLA_FUNC, /* Dwarf_Func */ + DW_DLA_TYPENAME, /* Dwarf_Type */ + DW_DLA_VAR, /* Dwarf_Var */ + DW_DLA_WEAK, /* Dwarf_Weak */ + DW_DLA_ADDR, /* Dwarf_Addr sized entries */ + }; + +/* Deallocate memory. */ +extern void dwarf_dealloc (Dwarf_Debug dbg, Dwarf_Ptr space, + Dwarf_Unsigned alloc_type); + + +/* Determine size of address of the binary. */ +extern int dwarf_get_address_size (Dwarf_Debug dbg, Dwarf_Half *addr_size, + Dwarf_Error *errdesc); + + +/* Return error number. */ +extern Dwarf_Unsigned dwarf_errno (Dwarf_Error errdesc); + +/* Return string corresponding to error. */ +extern const char *dwarf_errmsg (Dwarf_Error errdesc); + + +/* Set new error handler. */ +extern Dwarf_Handler dwarf_seterrhand (Dwarf_Debug dbg, Dwarf_Handler errhand); + +/* Set new error handler argument. */ +extern Dwarf_Ptr dwarf_seterrarg (Dwarf_Debug dbg, Dwarf_Ptr errarg); + +#endif /* libdwarf.h */ diff --git a/libdwarf/libdwarf.map b/libdwarf/libdwarf.map new file mode 100644 index 0000000..ec0e805 --- /dev/null +++ b/libdwarf/libdwarf.map @@ -0,0 +1,81 @@ +ELFUTILS_1.0 { + global: + dwarf_arrayorder; + dwarf_attr; + dwarf_attrlist; + dwarf_bitoffset; + dwarf_bitsize; + dwarf_bytesize; + dwarf_child; + dwarf_dealloc; + dwarf_die_CU_offset; + dwarf_diename; + dwarf_dieoffset; + dwarf_elf_init; + dwarf_errmsg; + dwarf_errno; + dwarf_find_macro_value_start; + dwarf_finish; + dwarf_formaddr; + dwarf_formblock; + dwarf_formflag; + dwarf_formref; + dwarf_formsdata; + dwarf_formstring; + dwarf_formudata; + dwarf_get_abbrev; + dwarf_get_abbrev_children_flag; + dwarf_get_abbrev_code; + dwarf_get_abbrev_entry; + dwarf_get_abbrev_tag; + dwarf_get_address_size; + dwarf_get_arange; + dwarf_get_arange_info; + dwarf_get_aranges; + dwarf_get_cie_info; + dwarf_get_cie_of_fde; + dwarf_get_cu_die_offset; + dwarf_get_elf_init; + dwarf_get_fde_at_pc; + dwarf_get_fde_instr_bytes; + dwarf_get_fde_list_eh; + dwarf_get_fde_n; + dwarf_get_fde_range; + dwarf_get_globals; + dwarf_get_loclist_entry; + dwarf_get_str; + dwarf_global_cu_offset; + dwarf_global_die_offset; + dwarf_global_formref; + dwarf_global_name_offsets; + dwarf_globname; + dwarf_hasattr; + dwarf_hasform; + dwarf_highpc; + dwarf_init; + dwarf_lineaddr; + dwarf_linebeginstatement; + dwarf_lineblock; + dwarf_lineendsequence; + dwarf_lineepiloguebegin; + dwarf_lineno; + dwarf_lineoff; + dwarf_lineprologueend; + dwarf_linesrc; + dwarf_loclist; + dwarf_lowpc; + dwarf_next_cu_header; + dwarf_offdie; + dwarf_seterrarg; + dwarf_seterrhand; + dwarf_siblingof; + dwarf_srcfiles; + dwarf_srclang; + dwarf_srclines; + dwarf_tag; + dwarf_whatattr; + dwarf_whatform; + + local: + *; +}; diff --git a/libdwarf/libdwarfP.h b/libdwarf/libdwarfP.h new file mode 100644 index 0000000..c6162ee --- /dev/null +++ b/libdwarf/libdwarfP.h @@ -0,0 +1,319 @@ +/* Internal definitions for libdwarf. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBDWARFP_H +#define _LIBDWARFP_H 1 + +#include +#include +#include + +#include + + +/* Version of the DWARF specification we support. */ +#define DWARF_VERSION 2 + +/* Version of the CIE format. */ +#define CIE_VERSION 1 + +/* Some additional basic types. */ +typedef unsigned int Dwarf_Word; + + +/* Valid indeces for the section data. */ +enum + { + IDX_debug_info = 0, + IDX_debug_abbrev, + IDX_debug_aranges, + IDX_debug_line, + IDX_debug_frame, + IDX_eh_frame, + IDX_debug_loc, + IDX_debug_pubnames, + IDX_debug_str, + IDX_debug_funcnames, + IDX_debug_typenames, + IDX_debug_varnames, + IDX_debug_weaknames, + IDX_debug_macinfo, + IDX_last + }; + + +/* This is the structure representing the debugging state. */ +struct Dwarf_Debug_s + { +#ifdef DWARF_DEBUG + int memtag; +#endif + + Dwarf_Handler dbg_errhand; + Dwarf_Ptr dbg_errarg; + + Elf *elf; + int other_byte_order; + + Dwarf_Unsigned access; + + /* The section data. */ + struct + { + Dwarf_Small *addr; + Dwarf_Unsigned size; + } sections[IDX_last]; + + /* Compilation unit handling. To enable efficient searching we + keep track of the unit we already found. */ + struct Dwarf_CU_Info_s + { + /* This is the information the 'dwarf_next_cu_header' function + is supposed to return. */ + Dwarf_Unsigned header_length; + Dwarf_Unsigned length; + Dwarf_Unsigned abbrev_offset; + Dwarf_Half version_stamp; + Dwarf_Half address_size; + + Dwarf_Unsigned offset; /* In .debug_info section. */ + + /* Used to distinguish between 32-bit and 64-bit DWARF. */ + Dwarf_Half offset_size; + + /* Hash table for the abbreviations. */ + Dwarf_Abbrev_Hash abbrev_hash; + Dwarf_Unsigned last_abbrev_offset; + + Dwarf_Debug dbg; + + struct Dwarf_CU_Info_s *next; + } *cu_list; + struct Dwarf_CU_Info_s *cu_list_current; + struct Dwarf_CU_Info_s *cu_list_tail; + + Dwarf_Unsigned cie_cnt; + Dwarf_Unsigned fde_cnt; + }; +typedef struct Dwarf_CU_Info_s *Dwarf_CU_Info; + + +/* Memory access macros. We have to define it here since code in the + header needs to know the structure of Dwarf_Debug. */ +#include "memory-access.h" + + +/* DWARF die representation. */ +struct Dwarf_Die_s + { +#ifdef DWARF_DEBUG + int memtag; +#endif + + Dwarf_Small *addr; + Dwarf_Abbrev abbrev; + Dwarf_CU_Info cu; + }; + + +/* Abbreviation list. */ +struct Dwarf_Abbrev_s + { + Dwarf_Unsigned code; /* The code. */ + Dwarf_Half tag; /* The tag. */ + Dwarf_Small *attrp; /* Pointer to beginning of attributes. */ + Dwarf_Unsigned attrcnt; /* Number of attributes. */ + int has_children; /* Nonzero of abbreviation has children. */ + Dwarf_Unsigned offset; /* Offset in the .debug_abbrev section. */ + }; + + +/* Attribute list. */ +struct Dwarf_Attribute_s + { + Dwarf_Half code; /* DWARF attribute code. */ + Dwarf_Half form; /* DWARF form. */ + Dwarf_Small *valp; + Dwarf_CU_Info cu; + }; + + +/* Structure for error values. */ +struct Dwarf_Error_s + { + unsigned int de_error; + }; + + +/* Files in line information records. */ +typedef struct Dwarf_File_s + { + Dwarf_Debug dbg; + unsigned int nfiles; + struct Dwarf_Fileinfo_s + { + char *name; + Dwarf_Unsigned mtime; + Dwarf_Unsigned length; + } info[0]; + } *Dwarf_File; +typedef struct Dwarf_Fileinfo_s Dwarf_Fileinfo; + + +/* Representation of a row in the line table. */ +struct Dwarf_Line_s + { + Dwarf_Addr addr; + unsigned int file; + int line; + unsigned short int column; + unsigned int is_stmt:1; + unsigned int basic_block:1; + unsigned int end_sequence:1; + unsigned int prologue_end:1; + unsigned int epilogue_begin:1; + + Dwarf_File files; + }; + + +/* Additional, shared information required for Dwarf_Global handling. */ +typedef struct Dwarf_Global_Info_s + { + Dwarf_Debug dbg; + Dwarf_Unsigned offset; + } *Dwarf_Global_Info; + +/* Representation of a global name entry. */ +struct Dwarf_Global_s + { + Dwarf_Unsigned offset; + char *name; + Dwarf_Global_Info info; + }; + + +/* Additional, shared information required for Dwarf_Arange handling. */ +typedef struct Dwarf_Arange_Info_s + { + Dwarf_Debug dbg; + Dwarf_Unsigned offset; + } *Dwarf_Arange_Info; + +/* Representation of an address range entry. */ +struct Dwarf_Arange_s + { + Dwarf_Addr address; + Dwarf_Unsigned length; + Dwarf_Arange_Info info; + }; + + +/* Representation of a common information entry. */ +struct Dwarf_Cie_s + { + Dwarf_Debug dbg; + Dwarf_Unsigned length; + char *augmentation; + Dwarf_Unsigned code_alignment_factor; + Dwarf_Signed data_alignment_factor; + Dwarf_Small *initial_instructions; + Dwarf_Unsigned initial_instructions_length; + Dwarf_Small return_address_register; + Dwarf_Unsigned offset; + Dwarf_Signed index; + }; + + +/* Representation of a frame descriptor entry. */ +struct Dwarf_Fde_s + { + Dwarf_Cie cie; + Dwarf_Addr initial_location; + Dwarf_Unsigned address_range; + Dwarf_Small *instructions; + Dwarf_Unsigned instructions_length; + Dwarf_Unsigned offset; + Dwarf_Small *fde_bytes; + Dwarf_Unsigned fde_byte_length; + }; + + +/* Internal error values. */ +enum + { + DW_E_NOERROR = 0, + DW_E_INVALID_ACCESS, + DW_E_NO_REGFILE, + DW_E_IO_ERROR, + DW_E_NOMEM, + DW_E_NOELF, + DW_E_GETEHDR_ERROR, + DW_E_INVALID_ELF, + DW_E_INVALID_DWARF, + DW_E_NO_DWARF, + DW_E_NO_CU, + DW_E_1ST_NO_CU, + DW_E_INVALID_OFFSET, + DW_E_INVALID_REFERENCE, + DW_E_NO_REFERENCE, + DW_E_NO_ADDR, + DW_E_NO_FLAG, + DW_E_NO_CONSTANT, + DW_E_NO_BLOCK, + DW_E_NO_STRING, + DW_E_WRONG_ATTR, + DW_E_NO_DATA, + DW_E_NO_DEBUG_LINE, + DW_E_VERSION_ERROR, + DW_E_INVALID_DIR_IDX, + DW_E_INVALID_ADDR, + DW_E_NO_ABBR, + }; + + +/* Handle error according to user's wishes. */ +extern void __libdwarf_error (Dwarf_Debug dbg, Dwarf_Error *err, int errval) + internal_function; + + +/* Find CU at given offset. */ +extern int __libdwarf_get_cu_at_offset (Dwarf_Debug dbg, Dwarf_Unsigned offset, + Dwarf_CU_Info *result_cu, + Dwarf_Error *err) internal_function; + +/* Find abbreviation. */ +extern Dwarf_Abbrev __libdwarf_get_abbrev (Dwarf_Debug dbg, + Dwarf_CU_Info cu, + Dwarf_Word code, + Dwarf_Error *err) + internal_function; + +/* Get constant type attribute value. */ +extern int __libdwarf_getconstant (Dwarf_Die die, Dwarf_Half name, + Dwarf_Unsigned *return_size, + Dwarf_Error *err) internal_function; + +/* Determine length of form parameters. */ +extern int __libdwarf_form_val_len (Dwarf_Debug dbg, Dwarf_CU_Info cu, + Dwarf_Word form, Dwarf_Small *valp, + size_t *len, Dwarf_Error *err) + internal_function; + + +/* gettext helper macros. */ +#define _(Str) dgettext ("libdwarf", Str) +#define N_(Str) Str + +#endif /* libdwarfP.h */ diff --git a/libdwarf/memory-access.h b/libdwarf/memory-access.h new file mode 100644 index 0000000..dcd52b5 --- /dev/null +++ b/libdwarf/memory-access.h @@ -0,0 +1,207 @@ +/* Unaligned memory access functionality. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _MEMORY_ACCESS_H +#define _MEMORY_ACCESS_H 1 + +#include +#include + + +/* Number decoding macros. See 7.6 Variable Length Data. */ +#define get_uleb128(var, addr) \ + do { \ + Dwarf_Small __b = *addr++; \ + var = __b & 0x7f; \ + if (__b & 0x80) \ + { \ + __b = *addr++; \ + var |= (__b & 0x7f) << 7; \ + if (__b & 0x80) \ + { \ + __b = *addr++; \ + var |= (__b & 0x7f) << 14; \ + if (__b & 0x80) \ + { \ + __b = *addr++; \ + var |= (__b & 0x7f) << 21; \ + if (__b & 0x80) \ + /* Other implementation set VALUE to UINT_MAX in this \ + case. So we better do this as well. */ \ + var = UINT_MAX; \ + } \ + } \ + } \ + } while (0) + +/* The signed case is a big more complicated. */ +#define get_sleb128(var, addr) \ + do { \ + Dwarf_Small __b = *addr++; \ + int32_t __res = __b & 0x7f; \ + if ((__b & 0x80) == 0) \ + { \ + if (__b & 0x40) \ + __res |= 0xffffff80; \ + } \ + else \ + { \ + __b = *addr++; \ + __res |= (__b & 0x7f) << 7; \ + if ((__b & 0x80) == 0) \ + { \ + if (__b & 0x40) \ + __res |= 0xffffc000; \ + } \ + else \ + { \ + __b = *addr++; \ + __res |= (__b & 0x7f) << 14; \ + if ((__b & 0x80) == 0) \ + { \ + if (__b & 0x40) \ + __res |= 0xffe00000; \ + } \ + else \ + { \ + __b = *addr++; \ + __res |= (__b & 0x7f) << 21; \ + if ((__b & 0x80) == 0) \ + { \ + if (__b & 0x40) \ + __res |= 0xf0000000; \ + } \ + else \ + /* Other implementation set VALUE to INT_MAX in this \ + case. So we better do this as well. */ \ + __res = INT_MAX; \ + } \ + } \ + } \ + var = __res; \ + } while (0) + + +/* We use simple memory access functions in case the hardware allows it. + The caller has to make sure we don't have alias problems. */ +#if ALLOW_UNALIGNED + +# define read_2ubyte_unaligned(Dbg, Addr) \ + ((Dbg)->other_byte_order \ + ? bswap_16 (*((uint16_t *) (Addr))) \ + : *((uint16_t *) (Addr))) +# define read_2sbyte_unaligned(Dbg, Addr) \ + ((Dbg)->other_byte_order \ + ? (int16_t) bswap_16 (*((int16_t *) (Addr))) \ + : *((int16_t *) (Addr))) + +# define read_4ubyte_unaligned_noncvt(Addr) \ + *((uint32_t *) (Addr)) +# define read_4ubyte_unaligned(Dbg, Addr) \ + ((Dbg)->other_byte_order \ + ? bswap_32 (*((uint32_t *) (Addr))) \ + : *((uint32_t *) (Addr))) +# define read_4sbyte_unaligned(Dbg, Addr) \ + ((Dbg)->other_byte_order \ + ? (int32_t) bswap_32 (*((int32_t *) (Addr))) \ + : *((int32_t *) (Addr))) + +# define read_8ubyte_unaligned(Dbg, Addr) \ + ((Dbg)->other_byte_order \ + ? bswap_64 (*((uint64_t *) (Addr))) \ + : *((uint64_t *) (Addr))) +# define read_8sbyte_unaligned(Dbg, Addr) \ + ((Dbg)->other_byte_order \ + ? (int64_t) bswap_64 (*((int64_t *) (Addr))) \ + : *((int64_t *) (Addr))) + +#else + +# if __GNUC__ + +union unaligned + { + void *p; + uint16_t u2; + uint32_t u4; + uint64_t u8; + int16_t s2; + int32_t s4; + int64_t s8; + } __attribute__ ((packed)); + +static inline uint16_t +read_2ubyte_unaligned (Dwarf_Debug dbg, void *p) +{ + union unaligned *up = p; + if (dbg->other_byte_order) + return bswap_16 (up->u2); + return up->u2; +} +static inline int16_t +read_2sbyte_unaligned (Dwarf_Debug dbg, void *p) +{ + union unaligned *up = p; + if (dbg->other_byte_order) + return (int16_t) bswap_16 (up->u2); + return up->s2; +} + +static inline uint32_t +read_4ubyte_unaligned_noncvt (void *p) +{ + union unaligned *up = p; + return up->u4; +} +static inline uint32_t +read_4ubyte_unaligned (Dwarf_Debug dbg, void *p) +{ + union unaligned *up = p; + if (dbg->other_byte_order) + return bswap_32 (up->u4); + return up->u4; +} +static inline int32_t +read_4sbyte_unaligned (Dwarf_Debug dbg, void *p) +{ + union unaligned *up = p; + if (dbg->other_byte_order) + return (int32_t) bswap_32 (up->u4); + return up->s4; +} + +static inline uint64_t +read_8ubyte_unaligned (Dwarf_Debug dbg, void *p) +{ + union unaligned *up = p; + if (dbg->other_byte_order) + return bswap_64 (up->u8); + return up->u8; +} +static inline int64_t +read_8sbyte_unaligned (Dwarf_Debug dbg, void *p) +{ + union unaligned *up = p; + if (dbg->other_byte_order) + return (int64_t) bswap_64 (up->u8); + return up->s8; +} + +# else +# error "TODO" +# endif + +#endif + +#endif /* memory-access.h */ diff --git a/libdwfl/.cvsignore b/libdwfl/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/libdwfl/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/libdwfl/ChangeLog b/libdwfl/ChangeLog new file mode 100644 index 0000000..a4b8732 --- /dev/null +++ b/libdwfl/ChangeLog @@ -0,0 +1,13 @@ +2005-07-23 Ulrich Drepper + + * Makefile.am: Fix rules to allow building with mudflap. + +2005-07-21 Roland McGrath + + * Makefile.am (noinst_HEADERS): Add loc2c.c. + + * test2.c (main): Check sscanf result to quiet warning. + +2005-07-20 Roland McGrath + + * libdwfl-branch merged, creating this direcotry. diff --git a/libdwfl/Makefile.am b/libdwfl/Makefile.am new file mode 100644 index 0000000..de4507f --- /dev/null +++ b/libdwfl/Makefile.am @@ -0,0 +1,114 @@ +## Makefile.am for libdwfl library subdirectory in elfutils. +## +## Process this file with automake to create Makefile.in +## +## Copyright (C) 2005 Red Hat, Inc. +## +## This program is Open Source software; you can redistribute it and/or +## modify it under the terms of the Open Software License version 1.0 as +## published by the Open Source Initiative. +## +## You should have received a copy of the Open Software License along +## with this program; if not, you may obtain a copy of the Open Software +## License version 1.0 from http://www.opensource.org/licenses/osl.php or +## by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +## 3001 King Ranch Road, Ukiah, CA 95482. +## +DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H +if MUDFLAP +AM_CFLAGS = -fmudflap +else +AM_CFLAGS = +endif +AM_CFLAGS += -Wall -Werror -Wshadow -Wunused -Wformat=2 -Wextra -std=gnu99 +INCLUDES = -I. -I$(srcdir) -I$(srcdir)/../libelf -I$(srcdir)/../libebl \ + -I$(srcdir)/../libdw -I.. -I$(srcdir)/../lib +VERSION = 1 + +noinst_PROGRAMS = ptest test2 + +test2_SOURCES = test2.c loc2c.c + +lib_LIBRARIES = libdwfl.a +if !MUDFLAP +noinst_LIBRARIES = libdwfl_pic.a +noinst_PROGRAMS += $(noinst_LIBRARIES:_pic.a=.so) +endif + +euincludedir = ${includedir}/elfutils +euinclude_HEADERS = libdwfl.h + +libdwfl_a_SOURCES = dwfl_begin.c dwfl_end.c dwfl_error.c \ + dwfl_module.c dwfl_report_elf.c relocate.c \ + dwfl_module_info.c dwfl_getmodules.c \ + dwfl_module_getdwarf.c dwfl_getdwarf.c \ + argp-std.c find-debuginfo.c \ + linux-kernel-modules.c linux-proc-maps.c \ + dwfl_addrmodule.c dwfl_addrdwarf.c \ + cu.c dwfl_module_nextcu.c dwfl_nextcu.c dwfl_cumodule.c \ + dwfl_module_addrdie.c dwfl_addrdie.c \ + lines.c dwfl_lineinfo.c dwfl_linemodule.c \ + dwfl_module_getsrc.c dwfl_getsrc.c \ + dwfl_module_getsrc_file.c \ + elf-from-memory.c + + +if MUDFLAP +libdwfl = libdwfl.a $(libdw) $(libebl) $(libelf) $(libeu) +libdw = ../libdw/libdw.a +libelf = ../libelf/libelf.a +libmudflap = -lmudflap +else +libdwfl = libdwfl.so +libdw = ../libdw/libdw.so +libelf = ../libelf/libelf.so +endif +libebl = ../libebl/libebl.a +libeu = ../lib/libeu.a + + +if !MUDFLAP +libdwfl_pic_a_SOURCES = +am_libdwfl_pic_a_OBJECTS = $(libdwfl_a_SOURCES:.c=.os) + +libdwfl_so_SOURCES = +libdwfl_LIBS = $(libeu) $(libdw) $(libebl) $(libelf) +libdwfl_so_LDADD = -ldl +libdwfl.so: libdwfl_pic.a $(srcdir)/libdwfl.map $(libdwfl_LIBS) + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libdwfl.map,--no-undefined \ + -Wl,--soname,$@.$(VERSION),-z,defs \ + $(libdwfl_LIBS) $(libdwfl_so_LDADD) + if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi + ln -fs $@ $@.$(VERSION) + + +%.os: %.c %.o + if $(COMPILE) -c -o $@ -fpic -DPIC -DSHARED -MT $@ -MD -MP \ + -MF "$(DEPDIR)/$*.Tpo" `test -f '$<' || echo '$(srcdir)/'`$<; \ + then cat "$(DEPDIR)/$*.Tpo" >> "$(DEPDIR)/$*.Po"; \ + rm -f "$(DEPDIR)/$*.Tpo"; \ + else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \ + fi + +install: install-am libdwfl.so + $(mkinstalldirs) $(DESTDIR)$(libdir) + $(INSTALL_PROGRAM) libdwfl.so $(DESTDIR)$(libdir)/libdwfl-$(PACKAGE_VERSION).so + ln -fs libdwfl-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libdwfl.so.$(VERSION) + ln -fs libdwfl.so.$(VERSION) $(DESTDIR)$(libdir)/libdwfl.so + +uninstall: uninstall-am + rm -f $(DESTDIR)$(libdir)/libdwfl-$(PACKAGE_VERSION).so + rm -f $(DESTDIR)$(libdir)/libdwfl.so.$(VERSION) + rm -f $(DESTDIR)$(libdir)/libdwfl.so + rmdir --ignore-fail-on-non-empty $(DESTDIR)$(includedir)/elfutils +endif + +noinst_HEADERS = libdwflP.h loc2c.h + +EXTRA_DIST = libdwfl.map + +CLEANFILES = $(am_libdwfl_pic_a_OBJECTS) + +ptest_LDADD = $(libdwfl) $(libdw) $(libmudflap) +test2_LDADD = $(libdwfl) $(libdw) $(libmudflap) diff --git a/libdwfl/argp-std.c b/libdwfl/argp-std.c new file mode 100644 index 0000000..ebddcfb --- /dev/null +++ b/libdwfl/argp-std.c @@ -0,0 +1,164 @@ +/* Standard argp argument parsers for tools using libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include +#include +#include +#include + +/* gettext helper macros. */ +#define _(Str) dgettext ("elfutils", Str) + + +#define OPT_DEBUGINFO 0x100 + +static const struct argp_option options[] = +{ + { NULL, 0, NULL, 0, N_("Input Selection:"), 0 }, + { "executable", 'e', "FILE", 0, N_("Find addresses in FILE"), 0 }, + { "pid", 'p', "PID", 0, + N_("Find addresses in files mapped into process PID"), 0 }, + { "kernel", 'k', NULL, 0, N_("Find addresses in the running kernel"), 0 }, + { "debuginfo-path", OPT_DEBUGINFO, "PATH", 0, + N_("Search path for separate debuginfo files"), 0 }, + { NULL, 0, NULL, 0, NULL, 0 } +}; + +static char *debuginfo_path; + +static const Dwfl_Callbacks proc_callbacks = + { + .find_debuginfo = INTUSE(dwfl_standard_find_debuginfo), + .debuginfo_path = &debuginfo_path, + + .find_elf = INTUSE(dwfl_linux_proc_find_elf), + }; + +static const Dwfl_Callbacks kernel_callbacks = + { + .find_debuginfo = INTUSE(dwfl_standard_find_debuginfo), + .debuginfo_path = &debuginfo_path, + + .find_elf = INTUSE(dwfl_linux_kernel_find_elf), + .section_address = INTUSE(dwfl_linux_kernel_module_section_address), + }; + +static error_t +parse_opt (int key, char *arg, struct argp_state *state) +{ + inline void failure (int errnum, const char *msg) + { + if (errnum == -1) + argp_failure (state, EXIT_FAILURE, 0, "%s: %s", + msg, INTUSE(dwfl_errmsg) (-1)); + else + argp_failure (state, EXIT_FAILURE, errnum, "%s", msg); + } + inline error_t fail (int errnum, const char *msg) + { + failure (errnum, msg); + return errnum == -1 ? EIO : errnum; + } + + switch (key) + { + case OPT_DEBUGINFO: + debuginfo_path = arg; + break; + + case 'e': + if (state->hook == NULL) + { + Dwfl *dwfl = INTUSE(dwfl_begin) (&proc_callbacks); + if (INTUSE(dwfl_report_elf) (dwfl, "", arg, -1, 0) == NULL) + return fail (-1, arg); + state->hook = dwfl; + } + else + { + toomany: + argp_error (state, "%s", _("only one -e, -p, or -k option allowed")); + return EINVAL; + } + break; + + case 'p': + if (state->hook == NULL) + { + Dwfl *dwfl = INTUSE(dwfl_begin) (&proc_callbacks); + int result = INTUSE(dwfl_linux_proc_report) (dwfl, atoi (arg)); + if (result != 0) + return fail (result, arg); + state->hook = dwfl; + } + else + goto toomany; + break; + + case 'k': + if (state->hook == NULL) + { + Dwfl *dwfl = INTUSE(dwfl_begin) (&kernel_callbacks); + int result = INTUSE(dwfl_linux_kernel_report_kernel) (dwfl); + if (result != 0) + return fail (result, _("cannot load kernel symbols")); + result = INTUSE(dwfl_linux_kernel_report_modules) (dwfl); + if (result != 0) + /* Non-fatal to have no modules since we do have the kernel. */ + failure (result, _("cannot find kernel modules")); + state->hook = dwfl; + } + else + goto toomany; + break; + + case ARGP_KEY_SUCCESS: + { + Dwfl *dwfl = state->hook; + + if (dwfl == NULL) + { + /* Default if no -e, -p, or -k, is "-e a.out". */ + arg = "a.out"; + dwfl = INTUSE(dwfl_begin) (&proc_callbacks); + if (INTUSE(dwfl_report_elf) (dwfl, "", arg, -1, 0) == NULL) + return fail (-1, arg); + state->hook = dwfl; + } + + /* One of the three flavors has done dwfl_begin and some reporting + if we got here. Tie up the Dwfl and return it to the caller of + argp_parse. */ + + int result = INTUSE(dwfl_report_end) (dwfl, NULL, NULL); + assert (result == 0); + + *(Dwfl **) state->input = dwfl; + } + break; + + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + +static const struct argp libdwfl_argp = + { .options = options, .parser = parse_opt }; + +const struct argp * +dwfl_standard_argp (void) +{ + return &libdwfl_argp; +} diff --git a/libdwfl/cu.c b/libdwfl/cu.c new file mode 100644 index 0000000..4420709 --- /dev/null +++ b/libdwfl/cu.c @@ -0,0 +1,275 @@ +/* Keeping track of DWARF compilation units in libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include "../libdw/libdwP.h" +#include "../libdw/memory-access.h" +#include + + +static inline Dwarf_Arange * +dwar (Dwfl_Module *mod, unsigned int idx) +{ + return &mod->dw->aranges->info[mod->aranges[idx].arange]; +} + + +static Dwfl_Error +addrarange (Dwfl_Module *mod, Dwarf_Addr addr, struct dwfl_arange **arange) +{ + if (mod->aranges == NULL) + { + Dwarf_Aranges *dwaranges; + if (dwarf_getaranges (mod->dw, &dwaranges, NULL) != 0) + return DWFL_E_LIBDW; + + struct dwfl_arange *aranges = malloc (dwaranges->naranges + * sizeof *aranges); + if (unlikely (aranges == NULL)) + return DWFL_E_NOMEM; + + /* libdw has sorted its list by address, which is how we want it. + But the sorted list is full of not-quite-contiguous runs pointing + to the same CU. We don't care about the little gaps inside the + module, we'll consider them part of the surrounding CU anyway. + Collect our own array with just one record for each run of ranges + pointing to one CU. */ + + size_t naranges = 0; + Dwarf_Off lastcu = 0; + for (size_t i = 0; i < dwaranges->naranges; ++i) + if (i == 0 || dwaranges->info[i].offset != lastcu) + { + aranges[naranges].arange = i; + aranges[naranges].cu = NULL; + ++naranges; + lastcu = dwaranges->info[i].offset; + } + + /* Store the final array, which is probably much smaller than before. */ + mod->naranges = naranges; + mod->aranges = (realloc (aranges, naranges * sizeof aranges[0]) + ?: aranges); + mod->lazycu += naranges; + } + + /* The address must be inside the module to begin with. */ + addr -= mod->debug.bias; + + /* The ranges are sorted by address, so we can use binary search. */ + size_t l = 0, u = mod->naranges; + while (l < u) + { + size_t idx = (l + u) / 2; + Dwarf_Addr start = dwar (mod, idx)->addr; + if (addr < start) + { + u = idx; + continue; + } + else if (addr > start) + { + if (idx + 1 < mod->naranges) + { + if (addr >= dwar (mod, idx + 1)->addr) + { + l = idx + 1; + continue; + } + } + else + { + /* It might be in the last range. */ + const Dwarf_Arange *last + = &mod->dw->aranges->info[mod->dw->aranges->naranges - 1]; + if (addr > last->addr + last->length) + break; + } + } + + *arange = &mod->aranges[idx]; + return DWFL_E_NOERROR; + } + + return DWFL_E_ADDR_OUTOFRANGE; +} + + +static void +nofree (void *arg) +{ + struct dwfl_cu *cu = arg; + if (cu == (void *) -1l) + return; + + assert (cu->mod->lazycu == 0); +} + +/* One reason fewer to keep the lazy lookup table for CUs. */ +static inline void +less_lazy (Dwfl_Module *mod) +{ + if (--mod->lazycu > 0) + return; + + /* We know about all the CUs now, we don't need this table. */ + tdestroy (mod->lazy_cu_root, nofree); + mod->lazy_cu_root = NULL; +} + +static inline Dwarf_Off +cudie_offset (const struct dwfl_cu *cu) +{ + return cu->die.cu->start + 3 * cu->die.cu->offset_size - 4 + 3; +} + +static int +compare_cukey (const void *a, const void *b) +{ + return cudie_offset (a) - cudie_offset (b); +} + +/* Intern the CU if necessary. */ +static Dwfl_Error +intern_cu (Dwfl_Module *mod, Dwarf_Off cuoff, struct dwfl_cu **result) +{ + struct Dwarf_CU dwkey; + struct dwfl_cu key; + key.die.cu = &dwkey; + dwkey.offset_size = 0; + dwkey.start = cuoff - (3 * 0 - 4 + 3); + struct dwfl_cu **found = tsearch (&key, &mod->lazy_cu_root, &compare_cukey); + if (unlikely (found == NULL)) + return DWFL_E_NOMEM; + + if (*found == &key || *found == NULL) + { + if (unlikely (cuoff + 4 >= mod->dw->sectiondata[IDX_debug_info]->d_size)) + { + /* This is the EOF marker. Now we have interned all the CUs. + One increment in MOD->lazycu counts not having hit EOF yet. */ + *found = (void *) -1l; + less_lazy (mod); + } + else + { + /* This is a new entry, meaning we haven't looked at this CU. */ + + *found = NULL; + + struct dwfl_cu *cu = malloc (sizeof *cu); + if (unlikely (cu == NULL)) + return DWFL_E_NOMEM; + + cu->mod = mod; + cu->next = NULL; + cu->lines = NULL; + + /* XXX use non-searching lookup */ + Dwarf_Die *die = dwarf_offdie (mod->dw, cuoff, &cu->die); + if (die == NULL) + return DWFL_E_LIBDW; + assert (die == &cu->die); + + struct dwfl_cu **newvec = realloc (mod->cu, ((mod->ncu + 1) + * sizeof (mod->cu[0]))); + if (newvec == NULL) + { + free (cu); + return DWFL_E_NOMEM; + } + mod->cu = newvec; + + mod->cu[mod->ncu++] = cu; + if (cu->die.cu->start == 0) + mod->first_cu = cu; + + *found = cu; + } + } + + *result = *found; + return DWFL_E_NOERROR; +} + + +/* Traverse all the CUs in the module. */ + +Dwfl_Error +internal_function_def +__libdwfl_nextcu (Dwfl_Module *mod, struct dwfl_cu *lastcu, + struct dwfl_cu **cu) +{ + Dwarf_Off cuoff; + struct dwfl_cu **nextp; + + if (lastcu == NULL) + { + /* Start the traversal. */ + cuoff = 0; + nextp = &mod->first_cu; + } + else + { + /* Continue following LASTCU. */ + cuoff = lastcu->die.cu->end; + nextp = &lastcu->next; + } + + if (*nextp == NULL) + { + size_t cuhdrsz; + Dwarf_Off nextoff; + if (dwarf_nextcu (mod->dw, cuoff, &nextoff, &cuhdrsz, + NULL, NULL, NULL) != 0) + return DWFL_E_LIBDW; + + Dwfl_Error result = intern_cu (mod, cuoff + cuhdrsz, nextp); + if (result != DWFL_E_NOERROR) + return result; + + if ((*nextp)->next == NULL && nextoff == (Dwarf_Off) -1l) + (*nextp)->next = (void *) -1l; + } + + *cu = *nextp == (void *) -1l ? NULL : *nextp; + return DWFL_E_NOERROR; +} + + +/* Intern the CU arange points to, if necessary. */ + +static Dwfl_Error +arangecu (Dwfl_Module *mod, struct dwfl_arange *arange, struct dwfl_cu **cu) +{ + if (arange->cu == NULL) + { + const Dwarf_Arange *dwarange = &mod->dw->aranges->info[arange->arange]; + Dwfl_Error result = intern_cu (mod, dwarange->offset, &arange->cu); + if (result != DWFL_E_NOERROR) + return result; + assert (arange->cu != NULL && arange->cu != (void *) -1l); + less_lazy (mod); /* Each arange with null ->cu counts once. */ + } + + *cu = arange->cu; + return DWFL_E_NOERROR; +} + +Dwfl_Error +internal_function_def +__libdwfl_addrcu (Dwfl_Module *mod, Dwarf_Addr addr, struct dwfl_cu **cu) +{ + struct dwfl_arange *arange; + return addrarange (mod, addr, &arange) ?: arangecu (mod, arange, cu); +} diff --git a/libdwfl/dwfl_addrdie.c b/libdwfl/dwfl_addrdie.c new file mode 100644 index 0000000..4aba9c3 --- /dev/null +++ b/libdwfl/dwfl_addrdie.c @@ -0,0 +1,21 @@ +/* Fetch CU DIE from address. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +Dwarf_Die * +dwfl_addrdie (Dwfl *dwfl, Dwarf_Addr addr, Dwarf_Addr *bias) +{ + return INTUSE(dwfl_module_addrdie) (INTUSE(dwfl_addrmodule) (dwfl, addr), + addr, bias); +} diff --git a/libdwfl/dwfl_addrdwarf.c b/libdwfl/dwfl_addrdwarf.c new file mode 100644 index 0000000..33eaec6 --- /dev/null +++ b/libdwfl/dwfl_addrdwarf.c @@ -0,0 +1,22 @@ +/* Fetch libdw handle from address. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +Dwarf * +dwfl_addrdwarf (Dwfl *dwfl, Dwarf_Addr address, Dwarf_Addr *bias) +{ + return INTUSE(dwfl_module_getdwarf) (INTUSE(dwfl_addrmodule) (dwfl, address), + bias); +} +INTDEF (dwfl_addrdwarf) diff --git a/libdwfl/dwfl_addrmodule.c b/libdwfl/dwfl_addrmodule.c new file mode 100644 index 0000000..69aab57 --- /dev/null +++ b/libdwfl/dwfl_addrmodule.c @@ -0,0 +1,38 @@ +/* Find module containing address. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +Dwfl_Module * +dwfl_addrmodule (Dwfl *dwfl, Dwarf_Addr address) +{ + if (dwfl == NULL) + return NULL; + + /* Do binary search on the array indexed by module load address. */ + size_t l = 0, u = dwfl->nmodules; + while (l < u) + { + size_t idx = (l + u) / 2; + Dwfl_Module *m = dwfl->modules[idx]; + if (address < m->low_addr) + u = idx; + else if (address >= m->high_addr) + l = idx + 1; + else + return m; + } + + return NULL; +} +INTDEF (dwfl_addrmodule) diff --git a/libdwfl/dwfl_begin.c b/libdwfl/dwfl_begin.c new file mode 100644 index 0000000..e7130a4 --- /dev/null +++ b/libdwfl/dwfl_begin.c @@ -0,0 +1,33 @@ +/* Set up a session using libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +Dwfl * +dwfl_begin (const Dwfl_Callbacks *callbacks) +{ + if (elf_version (EV_CURRENT) == EV_NONE) + { + __libdwfl_seterrno (DWFL_E_LIBELF); + return NULL; + } + + Dwfl *dwfl = calloc (1, sizeof *dwfl); + if (dwfl == NULL) + __libdwfl_seterrno (DWFL_E_NOMEM); + else + dwfl->callbacks = callbacks; + + return dwfl; +} +INTDEF (dwfl_begin) diff --git a/libdwfl/dwfl_cumodule.c b/libdwfl/dwfl_cumodule.c new file mode 100644 index 0000000..69b5c0f --- /dev/null +++ b/libdwfl/dwfl_cumodule.c @@ -0,0 +1,21 @@ +/* Find the module for a CU DIE previously returned by libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +Dwfl_Module * +dwfl_cumodule (Dwarf_Die *cudie) +{ + struct dwfl_cu *cu = (struct dwfl_cu *) cudie; + return cu->mod; +} diff --git a/libdwfl/dwfl_end.c b/libdwfl/dwfl_end.c new file mode 100644 index 0000000..b2836d3 --- /dev/null +++ b/libdwfl/dwfl_end.c @@ -0,0 +1,26 @@ +/* Finish a session using libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +void +dwfl_end (Dwfl *dwfl) +{ + if (dwfl != NULL) + { + for (size_t i = 0; i < dwfl->nmodules; ++i) + if (dwfl->modules[i] != NULL) + __libdwfl_module_free (dwfl->modules[i]); + free (dwfl->modules); + } +} diff --git a/libdwfl/dwfl_error.c b/libdwfl/dwfl_error.c new file mode 100644 index 0000000..4bd1a50 --- /dev/null +++ b/libdwfl/dwfl_error.c @@ -0,0 +1,222 @@ +/* Error handling in libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include + +#include "libdwflP.h" + + +#ifdef USE_TLS +/* The error number. */ +static __thread int global_error; +#else +/* This is the key for the thread specific memory. */ +static tls_key_t key; + +/* The error number. Used in non-threaded programs. */ +static int global_error; +static bool threaded; +/* We need to initialize the thread-specific data. */ +once_define (static, once); + +/* The initialization and destruction functions. */ +static void init (void); +static void free_key_mem (void *mem); +#endif /* TLS */ + + +int +dwfl_errno (void) +{ + int result; + +#ifndef USE_TLS + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if (threaded) + { + /* We do not allocate memory for the data. It is only a word. + We can store it in place of the pointer. */ + result = (intptr_t) getspecific (key); + + setspecific (key, (void *) (intptr_t) DWFL_E_NOERROR); + return result; + } +#endif /* TLS */ + + result = global_error; + global_error = DWFL_E_NOERROR; + return result; +} + + +static const struct msgtable +{ +#define DWFL_ERROR(name, text) char msg_##name[sizeof text]; + DWFL_ERRORS +#undef DWFL_ERROR +} msgtable = + { +#define DWFL_ERROR(name, text) text, + DWFL_ERRORS +#undef DWFL_ERROR + }; +#define msgstr (&msgtable.msg_NOERROR[0]) + +static const uint_fast16_t msgidx[] = +{ +#define DWFL_ERROR(name, text) \ + [DWFL_E_##name] = offsetof (struct msgtable, msg_##name), + DWFL_ERRORS +#undef DWFL_ERROR +}; +#define nmsgidx (sizeof msgidx / sizeof msgidx[0]) + + +static inline int +canonicalize (Dwfl_Error error) +{ + unsigned int value; + + switch (error) + { + default: + value = error; + if ((value &~ 0xffff) != 0) + break; + assert (value < nmsgidx); + break; + case DWFL_E_ERRNO: + value = DWFL_E (ERRNO, errno); + break; + case DWFL_E_LIBELF: + value = DWFL_E (LIBELF, elf_errno ()); + break; + case DWFL_E_LIBDW: + value = DWFL_E (LIBDW, dwarf_errno ()); + break; +#if 0 + DWFL_E_LIBEBL: + value = DWFL_E (LIBEBL, ebl_errno ()); + break; +#endif + } + + return value; +} + +int +internal_function_def +__libdwfl_canon_error (Dwfl_Error error) +{ + return canonicalize (error); +} + +void +internal_function_def +__libdwfl_seterrno (Dwfl_Error error) +{ + int value = canonicalize (error); + +#ifndef USE_TLS + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if (threaded) + /* We do not allocate memory for the data. It is only a word. + We can store it in place of the pointer. */ + setspecific (key, (void *) (intptr_t) value); +#endif /* TLS */ + + global_error = value; +} + + +const char * +dwfl_errmsg (error) + int error; +{ + if (error == 0 || error == -1) + { + int last_error; + +#ifndef USE_TLS + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if (threaded) + /* We do not allocate memory for the data. It is only a word. + We can store it in place of the pointer. */ + last_error = (intptr_t) getspecific (key); + else +#endif /* TLS */ + last_error = global_error; + + if (error == 0 && last_error == 0) + return NULL; + + error = last_error; + global_error = DWFL_E_NOERROR; + } + + switch (error &~ 0xffff) + { + case OTHER_ERROR (ERRNO): + return strerror_r (error & 0xffff, "bad", 0); + case OTHER_ERROR (LIBELF): + return elf_errmsg (error & 0xffff); + case OTHER_ERROR (LIBDW): + return dwarf_errmsg (error & 0xffff); +#if 0 + case OTHER_ERROR (LIBEBL): + return ebl_errmsg (error & 0xffff); +#endif + } + + return _(&msgstr[msgidx[(unsigned int) error < nmsgidx + ? error : DWFL_E_UNKNOWN_ERROR]]); +} +INTDEF (dwfl_errmsg) + + +#ifndef USE_TLS +/* Free the thread specific data, this is done if a thread terminates. */ +static void +free_key_mem (void *mem __attribute__ ((unused))) +{ + setspecific (key, NULL); +} + + +/* Initialize the key for the global variable. */ +static void +init (void) +{ + // XXX Screw you, gcc4, the unused function attribute does not work. + __asm ("" :: "r" (free_key_mem)); + + if (key_create (&key, free_key_mem) == 0) + /* Creating the key succeeded. */ + threaded = true; +} +#endif /* TLS */ diff --git a/libdwfl/dwfl_getdwarf.c b/libdwfl/dwfl_getdwarf.c new file mode 100644 index 0000000..cae49da --- /dev/null +++ b/libdwfl/dwfl_getdwarf.c @@ -0,0 +1,40 @@ +/* Iterate through modules to fetch Dwarf information. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +ptrdiff_t +dwfl_getdwarf (Dwfl *dwfl, + int (*callback) (Dwfl_Module *, void **, + const char *, Dwarf_Addr, + Dwarf *, Dwarf_Addr, void *), + void *arg, + ptrdiff_t offset) +{ + if (dwfl == NULL) + return -1; + + if ((size_t) offset > dwfl->nmodules) + return -1; + + while ((size_t) offset < dwfl->nmodules) + { + Dwfl_Module *mod = dwfl->modules[offset++]; + Dwarf_Addr bias = 0; + Dwarf *dw = INTUSE(dwfl_module_getdwarf) (mod, &bias); + if ((*callback) (MODCB_ARGS (mod), dw, bias, arg) != DWARF_CB_OK) + return offset; + } + + return 0; +} diff --git a/libdwfl/dwfl_getmodules.c b/libdwfl/dwfl_getmodules.c new file mode 100644 index 0000000..4fc1488 --- /dev/null +++ b/libdwfl/dwfl_getmodules.c @@ -0,0 +1,37 @@ +/* Iterate through modules. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +ptrdiff_t +dwfl_getmodules (Dwfl *dwfl, + int (*callback) (Dwfl_Module *, void **, + const char *, Dwarf_Addr, void *), + void *arg, + ptrdiff_t offset) +{ + if (dwfl == NULL) + return -1; + + if ((size_t) offset > dwfl->nmodules) + return -1; + + while ((size_t) offset < dwfl->nmodules) + { + Dwfl_Module *mod = dwfl->modules[offset++]; + if ((*callback) (MODCB_ARGS (mod), arg) != DWARF_CB_OK) + return offset; + } + + return 0; +} diff --git a/libdwfl/dwfl_getsrc.c b/libdwfl/dwfl_getsrc.c new file mode 100644 index 0000000..3ceb632 --- /dev/null +++ b/libdwfl/dwfl_getsrc.c @@ -0,0 +1,21 @@ +/* Find source location for PC address. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +Dwfl_Line * +dwfl_getsrc (Dwfl *dwfl, Dwarf_Addr addr) +{ + return INTUSE(dwfl_module_getsrc) (INTUSE(dwfl_addrmodule) (dwfl, addr), + addr); +} diff --git a/libdwfl/dwfl_lineinfo.c b/libdwfl/dwfl_lineinfo.c new file mode 100644 index 0000000..4771e00 --- /dev/null +++ b/libdwfl/dwfl_lineinfo.c @@ -0,0 +1,40 @@ +/* Get information from a source line record returned by libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include "../libdw/libdwP.h" + +extern const char * +dwfl_lineinfo (Dwfl_Line *line, Dwarf_Addr *addr, int *linep, int *colp, + Dwarf_Word *mtime, Dwarf_Word *length) +{ + if (line == NULL) + return NULL; + + struct dwfl_cu *cu = dwfl_linecu (line); + const Dwarf_Line *info = &cu->die.cu->lines->info[line->idx]; + + if (addr != NULL) + *addr = info->addr - cu->mod->debug.bias; + if (linep != NULL) + *linep = info->line; + if (colp != NULL) + *colp = info->column; + + struct Dwarf_Fileinfo_s *file = &info->files->info[info->file]; + if (mtime != NULL) + *mtime = file->mtime; + if (length != NULL) + *length = file->length; + return file->name; +} diff --git a/libdwfl/dwfl_linemodule.c b/libdwfl/dwfl_linemodule.c new file mode 100644 index 0000000..233dbd4 --- /dev/null +++ b/libdwfl/dwfl_linemodule.c @@ -0,0 +1,23 @@ +/* Fetch the module containing a source line record returned by libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +Dwfl_Module * +dwfl_linemodule (Dwfl_Line *line) +{ + if (line == NULL) + return NULL; + + return dwfl_linecu (line)->mod; +} diff --git a/libdwfl/dwfl_module.c b/libdwfl/dwfl_module.c new file mode 100644 index 0000000..a6d9f41 --- /dev/null +++ b/libdwfl/dwfl_module.c @@ -0,0 +1,188 @@ +/* Maintenance of module list in libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include + +static void +free_cu (struct dwfl_cu *cu) +{ + if (cu->lines != NULL) + free (cu->lines); + free (cu); +} + +static void +nofree (void *arg __attribute__ ((unused))) +{ +} + +void +internal_function_def +__libdwfl_module_free (Dwfl_Module *mod) +{ + if (mod->lazy_cu_root != NULL) + tdestroy (mod->lazy_cu_root, nofree); + + if (mod->aranges != NULL) + free (mod->aranges); + + if (mod->cu != NULL) + { + for (size_t i = 0; i < mod->ncu; ++i) + free_cu (mod->cu[i]); + free (mod->cu); + } + + if (mod->dw != NULL) + dwarf_end (mod->dw); + + if (mod->ebl != NULL) + ebl_closebackend (mod->ebl); + + if (mod->debug.elf != mod->main.elf && mod->debug.elf != NULL) + elf_end (mod->debug.elf); + if (mod->main.elf != NULL) + elf_end (mod->main.elf); + + free (mod->name); +} + +void +dwfl_report_begin (Dwfl *dwfl) +{ + for (Dwfl_Module *m = dwfl->modulelist; m != NULL; m = m->next) + m->gc = true; + + if (dwfl->modules != NULL) + free (dwfl->modules); + dwfl->modules = NULL; + dwfl->nmodules = 0; +} +INTDEF (dwfl_report_begin) + +/* Report that a module called NAME pans addresses [START, END). + Returns the module handle, either existing or newly allocated, + or returns a null pointer for an allocation error. */ +Dwfl_Module * +dwfl_report_module (Dwfl *dwfl, const char *name, + GElf_Addr start, GElf_Addr end) +{ + Dwfl_Module **tailp = &dwfl->modulelist, **prevp = tailp; + for (Dwfl_Module *m = *prevp; m != NULL; m = *(prevp = &m->next)) + { + if (m->low_addr == start && m->high_addr == end + && !strcmp (m->name, name)) + { + /* This module is still here. Move it to the place in the list + after the last module already reported. */ + + *prevp = m->next; + m->next = *tailp; + m->gc = false; + *tailp = m; + return m; + } + + if (! m->gc) + tailp = &m->next; + } + + Dwfl_Module *mod = calloc (1, sizeof *mod); + if (mod == NULL) + goto nomem; + + mod->name = strdup (name); + if (mod->name == NULL) + { + free (mod); + nomem: + __libdwfl_seterrno (DWFL_E_NOMEM); + return NULL; + } + + mod->low_addr = start; + mod->high_addr = end; + mod->dwfl = dwfl; + + mod->next = *tailp; + *tailp = mod; + ++dwfl->nmodules; + + return mod; +} +INTDEF (dwfl_report_module) + +static int +compare_modules (const void *a, const void *b) +{ + Dwfl_Module *const *p1 = a, *const *p2 = b; + const Dwfl_Module *m1 = *p1, *m2 = *p2; + if (m1 == NULL) + return -1; + if (m2 == NULL) + return 1; + return (GElf_Sxword) (m1->low_addr - m2->low_addr); +} + + +/* Finish reporting the current set of modules to the library. + If REMOVED is not null, it's called for each module that + existed before but was not included in the current report. + Returns a nonzero return value from the callback. + DWFL cannot be used until this function has returned zero. */ +int dwfl_report_end (Dwfl *dwfl, + int (*removed) (Dwfl_Module *, void *, + const char *, Dwarf_Addr, + void *arg), + void *arg) +{ + assert (dwfl->modules == NULL); + + Dwfl_Module **tailp = &dwfl->modulelist; + while (*tailp != NULL) + { + Dwfl_Module *m = *tailp; + if (m->gc && removed != NULL) + { + int result = (*removed) (MODCB_ARGS (m), arg); + if (result != 0) + return result; + } + if (m->gc) + { + *tailp = m->next; + __libdwfl_module_free (m); + } + else + tailp = &m->next; + } + + dwfl->modules = malloc (dwfl->nmodules * sizeof dwfl->modules[0]); + if (dwfl->modules == NULL && dwfl->nmodules != 0) + return -1; + + size_t i = 0; + for (Dwfl_Module *m = dwfl->modulelist; m != NULL; m = m->next) + { + assert (! m->gc); + dwfl->modules[i++] = m; + } + assert (i == dwfl->nmodules); + + qsort (dwfl->modules, dwfl->nmodules, sizeof dwfl->modules[0], + &compare_modules); + + return 0; +} +INTDEF (dwfl_report_end) diff --git a/libdwfl/dwfl_module_addrdie.c b/libdwfl/dwfl_module_addrdie.c new file mode 100644 index 0000000..29e2dfe --- /dev/null +++ b/libdwfl/dwfl_module_addrdie.c @@ -0,0 +1,30 @@ +/* Fetch the CU DIE for a PC address in a given module. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +Dwarf_Die * +dwfl_module_addrdie (Dwfl_Module *mod, Dwarf_Addr addr, Dwarf_Addr *bias) +{ + if (INTUSE(dwfl_module_getdwarf) (mod, bias) == NULL) + return NULL; + + struct dwfl_cu *cu; + Dwfl_Error error = __libdwfl_addrcu (mod, addr, &cu); + if (likely (error == DWFL_E_NOERROR)) + return &cu->die; + + __libdwfl_seterrno (error); + return NULL; +} +INTDEF (dwfl_module_addrdie) diff --git a/libdwfl/dwfl_module_getdwarf.c b/libdwfl/dwfl_module_getdwarf.c new file mode 100644 index 0000000..03cf8f0 --- /dev/null +++ b/libdwfl/dwfl_module_getdwarf.c @@ -0,0 +1,480 @@ +/* Find debugging and symbol information for a module in libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include +#include +#include "../libdw/libdwP.h" /* DWARF_E_* values are here. */ + + +/* Open libelf FILE->fd and compute the load base of ELF as loaded in MOD. + When we return success, FILE->elf and FILE->bias are set up. */ +static inline Dwfl_Error +open_elf (Dwfl_Module *mod, struct dwfl_file *file) +{ + if (file->elf == NULL) + { + if (file->fd < 0) + return CBFAIL; + + file->elf = elf_begin (file->fd, ELF_C_READ_MMAP_PRIVATE, NULL); + } + + GElf_Ehdr ehdr_mem, *ehdr = gelf_getehdr (file->elf, &ehdr_mem); + if (ehdr == NULL) + return DWFL_E (LIBELF, elf_errno ()); + + mod->isrel = ehdr->e_type == ET_REL; + + file->bias = 0; + for (uint_fast16_t i = 0; i < ehdr->e_phnum; ++i) + { + GElf_Phdr ph_mem; + GElf_Phdr *ph = gelf_getphdr (file->elf, i, &ph_mem); + if (ph == NULL) + return DWFL_E_LIBELF; + if (ph->p_type == PT_LOAD) + { + file->bias = ((mod->low_addr & -ph->p_align) + - (ph->p_vaddr & -ph->p_align)); + break; + } + } + + return DWFL_E_NOERROR; +} + +/* Find the main ELF file for this module and open libelf on it. + When we return success, MOD->main.elf and MOD->main.bias are set up. */ +static void +find_file (Dwfl_Module *mod) +{ + if (mod->main.elf != NULL /* Already done. */ + || mod->elferr != DWFL_E_NOERROR) /* Cached failure. */ + return; + + mod->main.fd = (*mod->dwfl->callbacks->find_elf) (MODCB_ARGS (mod), + &mod->main.name, + &mod->main.elf); + mod->elferr = open_elf (mod, &mod->main); +} + +/* Find the separate debuginfo file for this module and open libelf on it. + When we return success, MOD->debug is set up. */ +static Dwfl_Error +find_debuginfo (Dwfl_Module *mod) +{ + size_t shstrndx; + if (elf_getshstrndx (mod->main.elf, &shstrndx) < 0) + return DWFL_E_LIBELF; + + Elf_Scn *scn = elf_getscn (mod->main.elf, 0); + if (scn == NULL) + return DWFL_E_LIBELF; + do + { + GElf_Shdr shdr_mem, *shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + return DWFL_E_LIBELF; + + const char *name = elf_strptr (mod->main.elf, shstrndx, shdr->sh_name); + if (name == NULL) + return DWFL_E_LIBELF; + + if (!strcmp (name, ".gnu_debuglink")) + break; + + scn = elf_nextscn (mod->main.elf, scn); + } while (scn != NULL); + + const char *debuglink_file = NULL; + GElf_Word debuglink_crc = 0; + if (scn != NULL) + { + /* Found the .gnu_debuglink section. Extract its contents. */ + Elf_Data *rawdata = elf_rawdata (scn, NULL); + if (rawdata == NULL) + return DWFL_E_LIBELF; + + Elf_Data crcdata = + { + .d_type = ELF_T_WORD, + .d_buf = &debuglink_crc, + .d_size = sizeof debuglink_crc, + .d_version = EV_CURRENT, + }; + Elf_Data conv = + { + .d_type = ELF_T_WORD, + .d_buf = rawdata->d_buf + rawdata->d_size - sizeof debuglink_crc, + .d_size = sizeof debuglink_crc, + .d_version = EV_CURRENT, + }; + + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr = gelf_getehdr (mod->main.elf, &ehdr_mem); + if (ehdr == NULL) + return DWFL_E_LIBELF; + + Elf_Data *d = gelf_xlatetom (mod->main.elf, &crcdata, &conv, + ehdr->e_ident[EI_DATA]); + if (d == NULL) + return DWFL_E_LIBELF; + assert (d == &crcdata); + + debuglink_file = rawdata->d_buf; + } + + mod->debug.fd = (*mod->dwfl->callbacks->find_debuginfo) (MODCB_ARGS (mod), + mod->main.name, + debuglink_file, + debuglink_crc, + &mod->debug.name); + return open_elf (mod, &mod->debug); +} + + +/* Try to find a symbol table in FILE. */ +static Dwfl_Error +load_symtab (struct dwfl_file *file, struct dwfl_file **symfile, + Elf_Scn **symscn, Elf_Scn **xndxscn, + size_t *syments, GElf_Word *strshndx) +{ + Elf_Scn *scn = NULL; + while ((scn = elf_nextscn (file->elf, scn)) != NULL) + { + GElf_Shdr shdr_mem, *shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr != NULL) + switch (shdr->sh_type) + { + case SHT_SYMTAB: + *symscn = scn; + *symfile = file; + *strshndx = shdr->sh_link; + *syments = shdr->sh_size / shdr->sh_entsize; + if (*symscn != NULL && *xndxscn != NULL) + return DWFL_E_NOERROR; + break; + + case SHT_DYNSYM: + /* Use this if need be, but keep looking for SHT_SYMTAB. */ + *symscn = scn; + *symfile = file; + *strshndx = shdr->sh_link; + *syments = shdr->sh_size / shdr->sh_entsize; + break; + + case SHT_SYMTAB_SHNDX: + *xndxscn = scn; + break; + + default: + break; + } + } + return DWFL_E_NO_SYMTAB; +} + +/* Try to find a symbol table in either MOD->main.elf or MOD->debug.elf. */ +static void +find_symtab (Dwfl_Module *mod) +{ + if (mod->symdata != NULL /* Already done. */ + || mod->symerr != DWFL_E_NOERROR) /* Cached previous failure. */ + return; + + find_file (mod); + mod->symerr = mod->elferr; + if (mod->symerr != DWFL_E_NOERROR) + return; + + /* First see if the main ELF file has the debugging information. */ + Elf_Scn *symscn = NULL, *xndxscn = NULL; + GElf_Word strshndx; + mod->symerr = load_symtab (&mod->main, &mod->symfile, &symscn, + &xndxscn, &mod->syments, &strshndx); + switch (mod->symerr) + { + default: + return; + + case DWFL_E_NOERROR: + break; + + case DWFL_E_NO_SYMTAB: + /* Now we have to look for a separate debuginfo file. */ + mod->symerr = find_debuginfo (mod); + switch (mod->symerr) + { + default: + return; + + case DWFL_E_NOERROR: + mod->symerr = load_symtab (&mod->debug, &mod->symfile, &symscn, + &xndxscn, &mod->syments, &strshndx); + break; + + case DWFL_E_CB: /* The find_debuginfo hook failed. */ + mod->symerr = DWFL_E_NO_SYMTAB; + break; + } + + switch (mod->symerr) + { + default: + return; + + case DWFL_E_NOERROR: + break; + + case DWFL_E_NO_SYMTAB: + if (symscn == NULL) + return; + /* We still have the dynamic symbol table. */ + mod->symerr = DWFL_E_NOERROR; + break; + } + break; + } + + /* This does some sanity checks on the string table section. */ + if (elf_strptr (mod->symfile->elf, strshndx, 0) == NULL) + { + elferr: + mod->symerr = DWFL_E (LIBELF, elf_errno ()); + return; + } + + /* Cache the data; MOD->syments was set above. */ + + mod->symstrdata = elf_rawdata (elf_getscn (mod->symfile->elf, strshndx), + NULL); + if (mod->symstrdata == NULL) + goto elferr; + + if (xndxscn == NULL) + mod->symxndxdata = NULL; + else + { + mod->symxndxdata = elf_rawdata (xndxscn, NULL); + if (mod->symxndxdata == NULL) + goto elferr; + } + + mod->symdata = elf_rawdata (symscn, NULL); + if (mod->symdata == NULL) + goto elferr; +} + + +/* Try to start up libdw on DEBUGFILE. */ +static Dwfl_Error +load_dw (Dwfl_Module *mod, Elf *debugfile) +{ + if (mod->isrel) + { + const Dwfl_Callbacks *const cb = mod->dwfl->callbacks; + + /* The debugging sections have to be relocated. */ + if (cb->section_address == NULL) + return DWFL_E_NOREL; + + if (mod->ebl == NULL) + { + mod->ebl = ebl_openbackend (mod->main.elf); + if (mod->ebl == NULL) + return DWFL_E_LIBEBL; + } + + find_symtab (mod); + Dwfl_Error result = mod->symerr; + if (result == DWFL_E_NOERROR) + result = __libdwfl_relocate (mod); + if (result != DWFL_E_NOERROR) + return result; + } + + mod->dw = dwarf_begin_elf (debugfile, DWARF_C_READ, NULL); + if (mod->dw == NULL) + { + int err = dwarf_errno (); + return err == DWARF_E_NO_DWARF ? DWFL_E_NO_DWARF : DWFL_E (LIBDW, err); + } + + /* Until we have iterated through all CU's, we might do lazy lookups. */ + mod->lazycu = 1; + + return DWFL_E_NOERROR; +} + +/* Try to start up libdw on either the main file or the debuginfo file. */ +static void +find_dw (Dwfl_Module *mod) +{ + if (mod->dw != NULL /* Already done. */ + || mod->dwerr != DWFL_E_NOERROR) /* Cached previous failure. */ + return; + + find_file (mod); + mod->dwerr = mod->elferr; + if (mod->dwerr != DWFL_E_NOERROR) + return; + + /* First see if the main ELF file has the debugging information. */ + mod->dwerr = load_dw (mod, mod->main.elf); + switch (mod->dwerr) + { + case DWFL_E_NOERROR: + mod->debug.elf = mod->main.elf; + mod->debug.bias = mod->main.bias; + return; + + case DWFL_E_NO_DWARF: + break; + + default: + goto canonicalize; + } + + /* Now we have to look for a separate debuginfo file. */ + mod->dwerr = find_debuginfo (mod); + switch (mod->dwerr) + { + case DWFL_E_NOERROR: + mod->dwerr = load_dw (mod, mod->debug.elf); + break; + + case DWFL_E_CB: /* The find_debuginfo hook failed. */ + mod->dwerr = DWFL_E_NO_DWARF; + return; + + default: + break; + } + + canonicalize: + mod->dwerr = __libdwfl_canon_error (mod->dwerr); +} + + +Elf * +dwfl_module_getelf (Dwfl_Module *mod, GElf_Addr *loadbase) +{ + if (mod == NULL) + return NULL; + + find_file (mod); + if (mod->elferr == DWFL_E_NOERROR) + { + *loadbase = mod->main.bias; + return mod->main.elf; + } + + __libdwfl_seterrno (mod->elferr); + return NULL; +} +INTDEF (dwfl_module_getelf) + + +Dwarf * +dwfl_module_getdwarf (Dwfl_Module *mod, Dwarf_Addr *bias) +{ + if (mod == NULL) + return NULL; + + find_dw (mod); + if (mod->dwerr == DWFL_E_NOERROR) + { + *bias = mod->debug.bias; + return mod->dw; + } + + __libdwfl_seterrno (mod->dwerr); + return NULL; +} +INTDEF (dwfl_module_getdwarf) + + +const char * +dwfl_module_addrname (Dwfl_Module *mod, GElf_Addr addr) +{ + if (mod == NULL) + return NULL; + + find_symtab (mod); + if (mod->symerr != DWFL_E_NOERROR) + { + __libdwfl_seterrno (mod->symerr); + return NULL; + } + + addr -= mod->symfile->bias; + + /* Look through the symbol table for a matching symbol. */ + size_t symshstrndx = SHN_UNDEF; + for (size_t i = 1; i < mod->syments; ++i) + { + GElf_Sym sym_mem; + GElf_Word shndx; + GElf_Sym *sym = gelf_getsymshndx (mod->symdata, mod->symxndxdata, + i, &sym_mem, &shndx); + if (sym != NULL) + { + GElf_Addr symaddr = sym->st_value; + + if (sym->st_shndx != SHN_XINDEX) + shndx = sym->st_shndx; + + if (mod->isrel) + /* In an ET_REL file, the symbol table values are relative + to the section, not to the module's load base. */ + switch (shndx) + { + case SHN_UNDEF: /* Undefined symbol can't match an address. */ + case SHN_COMMON: /* Nor can a common defn. */ + continue; + + case SHN_ABS: /* Symbol value is already absolute. */ + break; + + default: + { + Dwfl_Error result = DWFL_E_LIBELF; + if (likely (symshstrndx != SHN_UNDEF) + || elf_getshstrndx (mod->symfile->elf, + &symshstrndx) == 0) + result = __libdwfl_relocate_value (mod, symshstrndx, + shndx, &symaddr); + if (unlikely (result != DWFL_E_NOERROR)) + { + __libdwfl_seterrno (result); + return NULL; + } + break; + } + } + + if (symaddr <= addr && addr < symaddr + sym->st_size) + { + if (unlikely (sym->st_name >= mod->symstrdata->d_size)) + { + __libdwfl_seterrno (DWFL_E_BADSTROFF); + return NULL; + } + return (const char *) mod->symstrdata->d_buf + sym->st_name; + } + } + } + + return NULL; +} diff --git a/libdwfl/dwfl_module_getsrc.c b/libdwfl/dwfl_module_getsrc.c new file mode 100644 index 0000000..3b341b9 --- /dev/null +++ b/libdwfl/dwfl_module_getsrc.c @@ -0,0 +1,60 @@ +/* Find source location for PC address in module. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include "../libdw/libdwP.h" + +Dwfl_Line * +dwfl_module_getsrc (Dwfl_Module *mod, Dwarf_Addr addr) +{ + Dwarf_Addr bias; + if (INTUSE(dwfl_module_getdwarf) (mod, &bias) == NULL) + return NULL; + + struct dwfl_cu *cu; + Dwfl_Error error = __libdwfl_addrcu (mod, addr, &cu); + if (likely (error == DWFL_E_NOERROR)) + error = __libdwfl_cu_getsrclines (cu); + if (likely (error == DWFL_E_NOERROR)) + { + /* The lines are sorted by address, so we can use binary search. */ + size_t l = 0, u = cu->die.cu->lines->nlines; + while (l < u) + { + size_t idx = (l + u) / 2; + if (addr < cu->die.cu->lines->info[idx].addr) + u = idx; + else if (addr > cu->die.cu->lines->info[idx].addr) + l = idx + 1; + else + return &cu->lines->idx[idx]; + } + + if (cu->die.cu->lines->nlines > 0) + assert (cu->die.cu->lines->info + [cu->die.cu->lines->nlines - 1].end_sequence); + + /* If none were equal, the closest one below is what we want. + We never want the last one, because it's the end-sequence + marker with an address at the high bound of the CU's code. */ + if (u > 0 && u < cu->die.cu->lines->nlines + && addr > cu->die.cu->lines->info[u - 1].addr) + return &cu->lines->idx[u - 1]; + + error = DWFL_E_ADDR_OUTOFRANGE; + } + + __libdwfl_seterrno (error); + return NULL; +} +INTDEF (dwfl_module_getsrc) diff --git a/libdwfl/dwfl_module_getsrc_file.c b/libdwfl/dwfl_module_getsrc_file.c new file mode 100644 index 0000000..81f57ed --- /dev/null +++ b/libdwfl/dwfl_module_getsrc_file.c @@ -0,0 +1,144 @@ +/* Find matching source locations in a module. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include "../libdw/libdwP.h" + + +int +dwfl_module_getsrc_file (Dwfl_Module *mod, + const char *fname, int lineno, int column, + Dwfl_Line ***srcsp, size_t *nsrcs) +{ + if (mod == NULL) + return -1; + + bool is_basename = strchr (fname, '/') == NULL; + + size_t max_match = *nsrcs ?: ~0u; + size_t act_match = *nsrcs; + size_t cur_match = 0; + Dwfl_Line **match = *nsrcs == 0 ? NULL : *srcsp; + + struct dwfl_cu *cu = NULL; + Dwfl_Error error; + while ((error = __libdwfl_nextcu (mod, cu, &cu)) == DWFL_E_NOERROR + && cu != NULL + && (error = __libdwfl_cu_getsrclines (cu)) == DWFL_E_NOERROR) + { + inline const char *dwarf_line_file (const Dwarf_Line *line) + { + return line->files->info[line->file].name; + } + inline Dwarf_Line *dwfl_line (const Dwfl_Line *line) + { + return &dwfl_linecu (line)->die.cu->lines->info[line->idx]; + } + inline const char *dwfl_line_file (const Dwfl_Line *line) + { + return dwarf_line_file (dwfl_line (line)); + } + + /* Search through all the line number records for a matching + file and line/column number. If any of the numbers is zero, + no match is performed. */ + const char *lastfile = NULL; + bool lastmatch = false; + for (size_t cnt = 0; cnt < cu->die.cu->lines->nlines; ++cnt) + { + Dwarf_Line *line = &cu->die.cu->lines->info[cnt]; + + if (unlikely (line->file >= line->files->nfiles)) + { + __libdwfl_seterrno (DWFL_E (LIBDW, DWARF_E_INVALID_DWARF)); + return -1; + } + else + { + const char *file = dwarf_line_file (line); + if (file != lastfile) + { + /* Match the name with the name the user provided. */ + lastfile = file; + lastmatch = !strcmp (is_basename ? basename (file) : file, + fname); + } + } + if (!lastmatch) + continue; + + /* See whether line and possibly column match. */ + if (lineno != 0 + && (lineno > line->line + || (column != 0 && column > line->column))) + /* Cannot match. */ + continue; + + /* Determine whether this is the best match so far. */ + size_t inner; + for (inner = 0; inner < cur_match; ++inner) + if (dwfl_line_file (match[inner]) == dwarf_line_file (line)) + break; + if (inner < cur_match + && (dwfl_line (match[inner])->line != line->line + || dwfl_line (match[inner])->line != lineno + || (column != 0 + && (dwfl_line (match[inner])->column != line->column + || dwfl_line (match[inner])->column != column)))) + { + /* We know about this file already. If this is a better + match for the line number, use it. */ + if (dwfl_line (match[inner])->line >= line->line + && (dwfl_line (match[inner])->line != line->line + || dwfl_line (match[inner])->column >= line->column)) + /* Use the new line. Otherwise the old one. */ + match[inner] = &cu->lines->idx[cnt]; + continue; + } + + if (cur_match < max_match) + { + if (cur_match == act_match) + { + /* Enlarge the array for the results. */ + act_match += 10; + Dwfl_Line **newp = realloc (match, + act_match + * sizeof (Dwfl_Line *)); + if (newp == NULL) + { + free (match); + __libdwfl_seterrno (DWFL_E_NOMEM); + return -1; + } + match = newp; + } + + match[cur_match++] = &cu->lines->idx[cnt]; + } + } + } + + if (cur_match > 0) + { + assert (*nsrcs == 0 || *srcsp == match); + + *nsrcs = cur_match; + *srcsp = match; + + return 0; + } + + __libdwfl_seterrno (DWFL_E_NO_MATCH); + return -1; +} diff --git a/libdwfl/dwfl_module_info.c b/libdwfl/dwfl_module_info.c new file mode 100644 index 0000000..e8c27b9 --- /dev/null +++ b/libdwfl/dwfl_module_info.c @@ -0,0 +1,44 @@ +/* Return information about a module. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +const char * +dwfl_module_info (Dwfl_Module *mod, void ***userdata, + Dwarf_Addr *start, Dwarf_Addr *end, + Dwarf_Addr *dwbias, Dwarf_Addr *symbias, + const char **mainfile, const char **debugfile) +{ + if (mod == NULL) + return NULL; + + if (userdata) + *userdata = &mod->userdata; + if (start) + *start = mod->low_addr; + if (end) + *end = mod->high_addr; + + if (dwbias) + *dwbias = mod->debug.elf == NULL ? (Dwarf_Addr) -1 : mod->debug.bias; + if (symbias) + *symbias = mod->symfile == NULL ? (Dwarf_Addr) -1 : mod->symfile->bias; + + if (mainfile) + *mainfile = mod->main.name; + + if (debugfile) + *debugfile = mod->debug.name; + + return mod->name; +} diff --git a/libdwfl/dwfl_module_nextcu.c b/libdwfl/dwfl_module_nextcu.c new file mode 100644 index 0000000..c089047 --- /dev/null +++ b/libdwfl/dwfl_module_nextcu.c @@ -0,0 +1,29 @@ +/* Iterate through DWARF compilation units in a module. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +Dwarf_Die * +dwfl_module_nextcu (Dwfl_Module *mod, Dwarf_Die *lastcu, Dwarf_Addr *bias) +{ + if (INTUSE(dwfl_module_getdwarf) (mod, bias) == NULL) + return NULL; + + struct dwfl_cu *cu; + Dwfl_Error error = __libdwfl_nextcu (mod, (struct dwfl_cu *) lastcu, &cu); + if (likely (error == DWFL_E_NOERROR)) + return &cu->die; /* Same as a cast, so ok for null too. */ + + __libdwfl_seterrno (error); + return NULL; +} diff --git a/libdwfl/dwfl_nextcu.c b/libdwfl/dwfl_nextcu.c new file mode 100644 index 0000000..a5565c6 --- /dev/null +++ b/libdwfl/dwfl_nextcu.c @@ -0,0 +1,52 @@ +/* Iterate through DWARF compilation units across all modules. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +Dwarf_Die * +dwfl_nextcu (Dwfl *dwfl, Dwarf_Die *lastcu, Dwarf_Addr *bias) +{ + if (dwfl == NULL) + return NULL; + + struct dwfl_cu *cu = (struct dwfl_cu *) lastcu; + Dwfl_Module *mod; + + if (cu == NULL) + { + mod = dwfl->modulelist; + goto nextmod; + } + else + mod = cu->mod; + + Dwfl_Error error; + while ((error = __libdwfl_nextcu (mod, cu, &cu)) == DWFL_E_NOERROR) + { + if (cu != NULL) + { + *bias = mod->debug.bias; + return &cu->die; + } + + mod = mod->next; + + nextmod: + if (mod == NULL || INTUSE(dwfl_module_getdwarf) (mod, bias) == NULL) + return NULL; + } + + __libdwfl_seterrno (error); + return NULL; +} +INTDEF (dwfl_nextcu) diff --git a/libdwfl/dwfl_report_elf.c b/libdwfl/dwfl_report_elf.c new file mode 100644 index 0000000..21c9e84 --- /dev/null +++ b/libdwfl/dwfl_report_elf.c @@ -0,0 +1,117 @@ +/* Report a module to libdwfl based on ELF program headers. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include +#include + + +Dwfl_Module * +dwfl_report_elf (Dwfl *dwfl, const char *name, + const char *file_name, int fd, GElf_Addr base) +{ + bool closefd = false; + + if (fd < 0) + { + fd = open64 (file_name, O_RDONLY); + if (fd < 0) + { + __libdwfl_seterrno (DWFL_E_ERRNO); + return NULL; + } + closefd = true; + } + + Elf *elf = elf_begin (fd, ELF_C_READ_MMAP_PRIVATE, NULL); + + GElf_Ehdr ehdr_mem, *ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + { + elf_error: + __libdwfl_seterrno (DWFL_E_LIBELF); + if (closefd) + close (fd); + return NULL; + } + + GElf_Addr start = 0, end = 0; + for (uint_fast16_t i = 0; i < ehdr->e_phnum; ++i) + { + GElf_Phdr phdr_mem, *ph = gelf_getphdr (elf, i, &phdr_mem); + if (ph == NULL) + goto elf_error; + if (ph->p_type == PT_LOAD) + { + start = base + (ph->p_vaddr & -ph->p_align); + break; + } + } + + for (uint_fast16_t i = ehdr->e_phnum; i-- > 0;) + { + GElf_Phdr phdr_mem, *ph = gelf_getphdr (elf, i, &phdr_mem); + if (ph == NULL) + goto elf_error; + if (ph->p_type == PT_LOAD) + { + end = base + (ph->p_vaddr + ph->p_memsz); + break; + } + } + + if (end == 0) + { + __libdwfl_seterrno (DWFL_E_NO_PHDR); + if (closefd) + close (fd); + return NULL; + } + + Dwfl_Module *m = INTUSE(dwfl_report_module) (dwfl, name, + base + start, base + end); + if (m != NULL) + { + if (m->main.name == NULL) + { + m->main.name = strdup (file_name); + m->main.fd = fd; + } + else if ((fd >= 0 && m->main.fd != fd) + || strcmp (m->main.name, file_name)) + { + elf_end (elf); + overlap: + if (closefd) + close (fd); + m->gc = true; + __libdwfl_seterrno (DWFL_E_OVERLAP); + m = NULL; + } + + /* Preinstall the open ELF handle for the module. */ + if (m->main.elf == NULL) + { + m->main.elf = elf; + m->main.bias = base; + } + else + { + elf_end (elf); + if (m->main.bias != base) + goto overlap; + } + } + return m; +} +INTDEF (dwfl_report_elf) diff --git a/libdwfl/elf-from-memory.c b/libdwfl/elf-from-memory.c new file mode 100644 index 0000000..3175ab1 --- /dev/null +++ b/libdwfl/elf-from-memory.c @@ -0,0 +1,328 @@ +/* Reconstruct an ELF file by reading the segments out of remote memory. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include "../libelf/libelfP.h" +#undef _ + +#include "libdwflP.h" + +#include +#include +#include +#include +#include + +/* Reconstruct an ELF file by reading the segments out of remote memory + based on the ELF file header at EHDR_VMA and the ELF program headers it + points to. If not null, *LOADBASEP is filled in with the difference + between the addresses from which the segments were read, and the + addresses the file headers put them at. + + The function READ_MEMORY is called to copy at least MINREAD and at most + MAXREAD bytes from the remote memory at target address ADDRESS into the + local buffer at DATA; it should return -1 for errors (with code in + `errno'), 0 if it failed to read at least MINREAD bytes due to EOF, or + the number of bytes read if >= MINREAD. ARG is passed through. */ + +Elf * +elf_from_remote_memory (GElf_Addr ehdr_vma, + GElf_Addr *loadbasep, + ssize_t (*read_memory) (void *arg, void *data, + GElf_Addr address, + size_t minread, + size_t maxread), + void *arg) +{ + /* First read in the file header and check its sanity. */ + + const size_t initial_bufsize = 256; + unsigned char *buffer = malloc (initial_bufsize); + if (buffer == NULL) + { + no_memory: + __libdwfl_seterrno (DWFL_E_NOMEM); + return NULL; + } + + ssize_t nread = (*read_memory) (arg, buffer, ehdr_vma, + sizeof (Elf32_Ehdr), initial_bufsize); + if (nread <= 0) + { + read_error: + free (buffer); + __libdwfl_seterrno (nread < 0 ? DWFL_E_ERRNO : DWFL_E_TRUNCATED); + return NULL; + } + + if (memcmp (buffer, ELFMAG, SELFMAG) != 0) + { + bad_elf: + __libdwfl_seterrno (DWFL_E_BADELF); + return NULL; + } + + /* Extract the information we need from the file header. */ + + union + { + Elf32_Ehdr e32; + Elf64_Ehdr e64; + } ehdr; + Elf_Data xlatefrom = + { + .d_type = ELF_T_EHDR, + .d_buf = buffer, + .d_version = EV_CURRENT, + }; + Elf_Data xlateto = + { + .d_type = ELF_T_EHDR, + .d_buf = &ehdr, + .d_size = sizeof ehdr, + .d_version = EV_CURRENT, + }; + + GElf_Off phoff; + uint_fast16_t phnum; + uint_fast16_t phentsize; + GElf_Off shdrs_end; + + switch (buffer[EI_CLASS]) + { + case ELFCLASS32: + xlatefrom.d_size = sizeof (Elf32_Ehdr); + if (elf32_xlatetom (&xlateto, &xlatefrom, buffer[EI_DATA]) == NULL) + { + libelf_error: + __libdwfl_seterrno (DWFL_E_LIBELF); + return NULL; + } + phoff = ehdr.e32.e_phoff; + phnum = ehdr.e32.e_phnum; + phentsize = ehdr.e32.e_phentsize; + if (phentsize != sizeof (Elf32_Phdr) || phnum == 0) + goto bad_elf; + shdrs_end = ehdr.e32.e_shoff + ehdr.e32.e_shnum * ehdr.e32.e_shentsize; + break; + + case ELFCLASS64: + xlatefrom.d_size = sizeof (Elf64_Ehdr); + if (elf32_xlatetom (&xlateto, &xlatefrom, buffer[EI_DATA]) == NULL) + goto libelf_error; + phoff = ehdr.e64.e_phoff; + phnum = ehdr.e64.e_phnum; + phentsize = ehdr.e64.e_phentsize; + if (phentsize != sizeof (Elf64_Phdr) || phnum == 0) + goto bad_elf; + shdrs_end = ehdr.e64.e_shoff + ehdr.e64.e_shnum * ehdr.e64.e_shentsize; + break; + + default: + goto bad_elf; + } + + + /* The file header tells where to find the program headers. + These are what we use to actually choose what to read. */ + + xlatefrom.d_type = xlateto.d_type = ELF_T_PHDR; + xlatefrom.d_size = phnum * phentsize; + + if ((size_t) nread >= phoff + phnum * phentsize) + /* We already have all the phdrs from the initial read. */ + xlatefrom.d_buf = buffer + phoff; + else + { + /* Read in the program headers. */ + + if (initial_bufsize < phnum * phentsize) + { + unsigned char *newbuf = realloc (buffer, phnum * phentsize); + if (newbuf == NULL) + { + free (buffer); + goto no_memory; + } + buffer = newbuf; + } + nread = (*read_memory) (arg, buffer, ehdr_vma + phoff, + phnum * phentsize, phnum * phentsize); + if (nread <= 0) + goto read_error; + + xlatefrom.d_buf = buffer; + } + + union + { + Elf32_Phdr p32[phnum]; + Elf64_Phdr p64[phnum]; + } phdrs; + + xlateto.d_buf = &phdrs; + xlateto.d_size = sizeof phdrs; + + /* Scan for PT_LOAD segments to find the total size of the file image. */ + size_t contents_size = 0; + GElf_Off segments_end = 0; + GElf_Addr loadbase = ehdr_vma; + switch (ehdr.e32.e_ident[EI_CLASS]) + { + inline void handle_segment (GElf_Addr vaddr, GElf_Off offset, + GElf_Xword filesz, GElf_Xword align) + { + GElf_Off segment_end = ((offset + filesz + align - 1) & -align); + + if (segment_end > (GElf_Off) contents_size) + contents_size = segment_end; + + if ((offset & -align) == 0 && loadbase == ehdr_vma) + loadbase = ehdr_vma - (vaddr & -align); + + segments_end = offset + filesz; + } + + case ELFCLASS32: + if (elf32_xlatetom (&xlateto, &xlatefrom, + ehdr.e32.e_ident[EI_DATA]) == NULL) + goto libelf_error; + for (uint_fast16_t i = 0; i < phnum; ++i) + if (phdrs.p32[i].p_type == PT_LOAD) + handle_segment (phdrs.p32[i].p_vaddr, phdrs.p32[i].p_offset, + phdrs.p32[i].p_filesz, phdrs.p32[i].p_align); + break; + + case ELFCLASS64: + if (elf32_xlatetom (&xlateto, &xlatefrom, + ehdr.e32.e_ident[EI_DATA]) == NULL) + goto libelf_error; + for (uint_fast16_t i = 0; i < phnum; ++i) + if (phdrs.p32[i].p_type == PT_LOAD) + handle_segment (phdrs.p64[i].p_vaddr, phdrs.p64[i].p_offset, + phdrs.p64[i].p_filesz, phdrs.p64[i].p_align); + break; + + default: + abort (); + break; + } + + /* Trim the last segment so we don't bother with zeros in the last page + that are off the end of the file. However, if the extra bit in that + page includes the section headers, keep them. */ + if ((GElf_Off) contents_size > segments_end + && (GElf_Off) contents_size >= shdrs_end) + { + contents_size = segments_end; + if ((GElf_Off) contents_size < shdrs_end) + contents_size = shdrs_end; + } + else + contents_size = segments_end; + + free (buffer); + + /* Now we know the size of the whole image we want read in. */ + buffer = calloc (1, contents_size); + if (buffer == NULL) + goto no_memory; + + switch (ehdr.e32.e_ident[EI_CLASS]) + { + inline bool handle_segment (GElf_Addr vaddr, GElf_Off offset, + GElf_Xword filesz, GElf_Xword align) + { + GElf_Off start = offset & -align; + GElf_Off end = (offset + filesz + align - 1) & -align; + if (end > (GElf_Off) contents_size) + end = contents_size; + nread = (*read_memory) (arg, buffer + start, + (loadbase + vaddr) & -align, + end - start, end - start); + return nread <= 0; + } + + case ELFCLASS32: + for (uint_fast16_t i = 0; i < phnum; ++i) + if (phdrs.p32[i].p_type == PT_LOAD) + if (handle_segment (phdrs.p32[i].p_vaddr, phdrs.p32[i].p_offset, + phdrs.p32[i].p_filesz, phdrs.p32[i].p_align)) + goto read_error; + + /* If the segments visible in memory didn't include the section + headers, then clear them from the file header. */ + if (contents_size < shdrs_end) + { + ehdr.e32.e_shoff = 0; + ehdr.e32.e_shnum = 0; + ehdr.e32.e_shstrndx = 0; + } + + /* This will normally have been in the first PT_LOAD segment. But it + conceivably could be missing, and we might have just changed it. */ + xlatefrom.d_type = xlateto.d_type = ELF_T_EHDR; + xlatefrom.d_size = xlateto.d_size = sizeof ehdr.e32; + xlatefrom.d_buf = &ehdr.e32; + xlateto.d_buf = buffer; + if (elf32_xlatetof (&xlateto, &xlatefrom, + ehdr.e32.e_ident[EI_DATA]) == NULL) + goto libelf_error; + break; + + case ELFCLASS64: + for (uint_fast16_t i = 0; i < phnum; ++i) + if (phdrs.p32[i].p_type == PT_LOAD) + if (handle_segment (phdrs.p64[i].p_vaddr, phdrs.p64[i].p_offset, + phdrs.p64[i].p_filesz, phdrs.p64[i].p_align)) + goto read_error; + + /* If the segments visible in memory didn't include the section + headers, then clear them from the file header. */ + if (contents_size < shdrs_end) + { + ehdr.e64.e_shoff = 0; + ehdr.e64.e_shnum = 0; + ehdr.e64.e_shstrndx = 0; + } + + /* This will normally have been in the first PT_LOAD segment. But it + conceivably could be missing, and we might have just changed it. */ + xlatefrom.d_type = xlateto.d_type = ELF_T_EHDR; + xlatefrom.d_size = xlateto.d_size = sizeof ehdr.e64; + xlatefrom.d_buf = &ehdr.e64; + xlateto.d_buf = buffer; + if (elf32_xlatetof (&xlateto, &xlatefrom, + ehdr.e64.e_ident[EI_DATA]) == NULL) + goto libelf_error; + break; + + default: + abort (); + break; + } + + /* Now we have the image. Open libelf on it. */ + + Elf *elf = elf_memory ((char *) buffer, contents_size); + if (elf == NULL) + { + free (buffer); + return NULL; + } + + elf->flags |= ELF_F_MALLOCED; + if (loadbasep != NULL) + *loadbasep = loadbase; + return elf; +} diff --git a/libdwfl/find-debuginfo.c b/libdwfl/find-debuginfo.c new file mode 100644 index 0000000..c9e640d --- /dev/null +++ b/libdwfl/find-debuginfo.c @@ -0,0 +1,157 @@ +/* Standard find_debuginfo callback for libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include +#include +#include +#include "system.h" + + +#define DEFAULT_DEBUGINFO_PATH ":.debug:/usr/lib/debug" + + +/* Try to open64 [DIR/][SUBDIR/]DEBUGLINK, return file descriptor or -1. + On success, *DEBUGINFO_FILE_NAME has the malloc'd name of the open file. */ +static int +try_open (const char *dir, const char *subdir, const char *debuglink, + char **debuginfo_file_name) +{ + char *fname = NULL; + if (dir == NULL && subdir == NULL) + fname = strdup (debuglink); + else if (subdir == NULL) + asprintf (&fname, "%s/%s", dir, debuglink); + else if (dir == NULL) + asprintf (&fname, "%s/%s", subdir, debuglink); + else + asprintf (&fname, "%s/%s/%s", dir, subdir, debuglink); + + if (fname == NULL) + return -1; + + int fd = open64 (fname, O_RDONLY); + if (fd < 0) + free (fname); + else + *debuginfo_file_name = fname; + + return fd; +} + +/* Return true iff the FD's contents CRC matches DEBUGLINK_CRC. */ +static inline bool +check_crc (int fd, GElf_Word debuglink_crc) +{ + uint32_t file_crc; + return crc32_file (fd, &file_crc) == 0 && file_crc == debuglink_crc; +} + +int +dwfl_standard_find_debuginfo (Dwfl_Module *mod __attribute__ ((unused)), + void **userdata __attribute__ ((unused)), + const char *modname __attribute__ ((unused)), + GElf_Addr base __attribute__ ((unused)), + const char *file_name, + const char *debuglink_file, + GElf_Word debuglink_crc, + char **debuginfo_file_name) +{ + bool cancheck = true; + + const char *file_basename = file_name == NULL ? NULL : basename (file_name); + if (debuglink_file == NULL) + { + if (file_basename == NULL) + { + errno = 0; + return -1; + } + + size_t len = strlen (file_basename); + char *localname = alloca (len + sizeof ".debug"); + memcpy (localname, file_basename, len); + memcpy (&localname[len], ".debug", sizeof ".debug"); + debuglink_file = localname; + cancheck = false; + } + + /* Look for a file named DEBUGLINK_FILE in the directories + indicated by the debug directory path setting. */ + + const Dwfl_Callbacks *const cb = mod->dwfl->callbacks; + char *path = strdupa ((cb->debuginfo_path ? *cb->debuginfo_path : NULL) + ?: DEFAULT_DEBUGINFO_PATH); + + /* A leading - or + in the whole path sets whether to check file CRCs. */ + bool defcheck = true; + if (path[0] == '-' || path[0] == '+') + { + defcheck = path[0] == '+'; + ++path; + } + + char *file_dirname = (file_basename == file_name ? NULL + : strndupa (file_name, file_basename - 1 - file_name)); + char *p; + while ((p = strsep (&path, ":")) != NULL) + { + /* A leading - or + says whether to check file CRCs for this element. */ + bool check = defcheck; + if (*p == '+' || *p == '-') + check = *p++ == '+'; + check = check && cancheck; + + const char *dir, *subdir; + switch (p[0]) + { + case '\0': + /* An empty entry says to try the main file's directory. */ + dir = file_dirname; + subdir = NULL; + break; + case '/': + /* An absolute path says to look there for a subdirectory + named by the main file's absolute directory. + This cannot be applied to a relative file name. */ + if (file_dirname == NULL || file_dirname[0] != '/') + continue; + dir = p; + subdir = file_dirname + 1; + break; + default: + /* A relative path says to try a subdirectory of that name + in the main file's directory. */ + dir = file_dirname; + subdir = p; + break; + } + + char *fname; + int fd = try_open (dir, subdir, debuglink_file, &fname); + if (fd < 0) + continue; + if (!check || check_crc (fd, debuglink_crc)) + { + *debuginfo_file_name = fname; + return fd; + } + free (fname); + close (fd); + } + + /* No dice. */ + errno = 0; + return -1; +} +INTDEF (dwfl_standard_find_debuginfo) diff --git a/libdwfl/libdwfl.h b/libdwfl/libdwfl.h new file mode 100644 index 0000000..8fb9fda --- /dev/null +++ b/libdwfl/libdwfl.h @@ -0,0 +1,262 @@ +/* Interfaces for libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBDWFL_H +#define _LIBDWFL_H 1 + +#include + +/* Handle for a session using the library. */ +typedef struct Dwfl Dwfl; + +/* Handle for a module. */ +typedef struct Dwfl_Module Dwfl_Module; + +/* Handle describing a line record. */ +typedef struct Dwfl_Line Dwfl_Line; + +/* Callbacks. */ +typedef struct +{ + int (*find_elf) (Dwfl_Module *mod, void **userdata, + const char *modname, Dwarf_Addr base, + char **file_name, Elf **elfp); + + int (*find_debuginfo) (Dwfl_Module *mod, void **userdata, + const char *modname, Dwarf_Addr base, + const char *file_name, + const char *debuglink_file, GElf_Word debuglink_crc, + char **debuginfo_file_name); + + /* Fill *ADDR with the loaded address of the + section called SECNAME in the given module. */ + int (*section_address) (Dwfl_Module *mod, void **userdata, + const char *modname, Dwarf_Addr base, + const char *secname, Dwarf_Addr *addr); + + char **debuginfo_path; /* See dwfl_standard_find_debuginfo. */ +} Dwfl_Callbacks; + + +/* Start a new session with the library. */ +Dwfl *dwfl_begin (const Dwfl_Callbacks *callbacks); + +/* End a session. */ +void dwfl_end (Dwfl *); + +/* Return error code of last failing function call. This value is kept + separately for each thread. */ +extern int dwfl_errno (void); + +/* Return error string for ERROR. If ERROR is zero, return error string + for most recent error or NULL if none occurred. If ERROR is -1 the + behaviour is similar to the last case except that not NULL but a legal + string is returned. */ +extern const char *dwfl_errmsg (int err); + + +/* Start reporting the current set of modules to the library. No calls but + dwfl_report_module can be made on DWFL until dwfl_report_end is called. */ +extern void dwfl_report_begin (Dwfl *dwfl); + +/* Report that a module called NAME spans addresses [START, END). + Returns the module handle, either existing or newly allocated, + or returns a null pointer for an allocation error. */ +extern Dwfl_Module *dwfl_report_module (Dwfl *dwfl, const char *name, + Dwarf_Addr start, Dwarf_Addr end); + +/* Report a module with start and end addresses computed from the ELF + program headers in the given file, plus BASE. FD may be -1 to open + FILE_NAME. On success, FD is consumed by the library, and the + `find_elf' callback will not be used for this module. */ +extern Dwfl_Module *dwfl_report_elf (Dwfl *dwfl, const char *name, + const char *file_name, int fd, + GElf_Addr base); + +/* Finish reporting the current set of modules to the library. + If REMOVED is not null, it's called for each module that + existed before but was not included in the current report. + Returns a nonzero return value from the callback. + The callback may call dwfl_report_module; doing so with the + details of the module being removed prevents its removal. + DWFL cannot be used until this function has returned zero. */ +extern int dwfl_report_end (Dwfl *dwfl, + int (*removed) (Dwfl_Module *, void *, + const char *, Dwarf_Addr, + void *arg), + void *arg); + +/* Return the name of the module, and for each non-null argument store + interesting details: *USERDATA is a location for storing your own + pointer, **USERDATA is initially null; *START and *END give the address + range covered by the module; *DWBIAS is the address bias for debugging + information, and *SYMBIAS for symbol table entries (either is -1 if not + yet accessed); *MAINFILE is the name of the ELF file, and *DEBUGFILE the + name of the debuginfo file (might be equal to *MAINFILE; either is null + if not yet accessed). */ +extern const char *dwfl_module_info (Dwfl_Module *mod, void ***userdata, + Dwarf_Addr *start, Dwarf_Addr *end, + Dwarf_Addr *dwbias, Dwarf_Addr *symbias, + const char **mainfile, + const char **debugfile); + +/* Iterate through the modules, starting the walk with OFFSET == 0. + Calls *CALLBACK for each module as long as it returns DWARF_CB_OK. + When *CALLBACK returns another value, the walk stops and the + return value can be passed as OFFSET to resume it. Returns 0 when + there are no more modules, or -1 for errors. */ +extern ptrdiff_t dwfl_getmodules (Dwfl *dwfl, + int (*callback) (Dwfl_Module *, void **, + const char *, Dwarf_Addr, + void *arg), + void *arg, + ptrdiff_t offset); + + +/*** Standard callbacks ***/ + +/* Standard find_debuginfo callback function. + This is controlled by a string specifying directories to look in. + If `debuginfo_path' is set in the Dwfl_Callbacks structure + and the char * it points to is not null, that supplies the string. + Otherwise a default path is used. + + If the first character of the string is + or - that says to check or to + ignore (respectively) the CRC32 checksum from the .gnu_debuglink + section. The default is to check it. The remainder of the string is + composed of elements separated by colons. Each element can start with + + or - to override the global checksum behavior. If the remainder of the + element is empty, the directory containing the main file is tried; if + it's an absolute path name, the absolute directory path containing the + main file is taken as a subdirectory of this path; a relative path name + is taken as a subdirectory of the directory containing the main file. + Hence for /bin/ls, string ":.debug:/usr/lib/debug" says to look in /bin, + then /bin/.debug, then /usr/lib/debug/bin, for the file name in the + .gnu_debuglink section (or "ls.debug" if none was found). */ + +extern int dwfl_standard_find_debuginfo (Dwfl_Module *, void **, + const char *, Dwarf_Addr, + const char *, const char *, + GElf_Word, char **); + + +/* Callbacks for working with kernel modules in the running Linux kernel. */ +extern int dwfl_linux_kernel_find_elf (Dwfl_Module *, void **, + const char *, Dwarf_Addr, + char **, Elf **); +extern int dwfl_linux_kernel_module_section_address (Dwfl_Module *, void **, + const char *, Dwarf_Addr, + const char *, + Dwarf_Addr *addr); + +/* Call dwfl_report_elf for the running Linux kernel. + Returns zero on success, -1 if dwfl_report_module failed, + or an errno code if opening the kernel binary failed. */ +extern int dwfl_linux_kernel_report_kernel (Dwfl *dwfl); + +/* Call dwfl_report_module for each kernel module in the running Linux kernel. + Returns zero on success, -1 if dwfl_report_module failed, + or an errno code if reading the list of modules failed. */ +extern int dwfl_linux_kernel_report_modules (Dwfl *dwfl); + + +/* Call dwfl_report_module for each file mapped into the address space of PID. + Returns zero on success, -1 if dwfl_report_module failed, + or an errno code if opening the kernel binary failed. */ +int dwfl_linux_proc_report (Dwfl *dwfl, pid_t pid); + +/* Trivial find_elf callback for use with dwfl_linux_proc_report. + This uses the module name as a file name directly and tries to open it + if it begin with a slash, or handles the magic string "[vdso]". */ +int dwfl_linux_proc_find_elf (Dwfl_Module *mod, void **userdata, + const char *module_name, Dwarf_Addr base, + char **file_name, Elf **); + +/* Standard argument parsing for using a standard callback set. */ +struct argp; +extern const struct argp *dwfl_standard_argp (void) __attribute__ ((const)); + + +/*** Dwarf access functions ***/ + +/* Find the module containing the given address. */ +extern Dwfl_Module *dwfl_addrmodule (Dwfl *dwfl, Dwarf_Addr address); + +/* Fetch the module main ELF file (where the allocated sections + are found) for use with libelf. If successful, fills in *BIAS + with the difference between addresses within the loaded module + and those in symbol tables or Dwarf information referring to it. */ +extern Elf *dwfl_module_getelf (Dwfl_Module *, GElf_Addr *bias); + +/* Fetch the module's debug information for use with libdw. + If successful, fills in *BIAS with the difference between + addresses within the loaded module and those to use with libdw. */ +extern Dwarf *dwfl_module_getdwarf (Dwfl_Module *, Dwarf_Addr *bias) + __nonnull_attribute__ (2); + +/* Get the libdw handle for each module. */ +extern ptrdiff_t dwfl_getdwarf (Dwfl *, + int (*callback) (Dwfl_Module *, void **, + const char *, Dwarf_Addr, + Dwarf *, Dwarf_Addr, void *), + void *arg, ptrdiff_t offset); + +/* Look up the module containing ADDR and return its debugging information, + loading it if necessary. */ +extern Dwarf *dwfl_addrdwarf (Dwfl *dwfl, Dwarf_Addr addr, Dwarf_Addr *bias) + __nonnull_attribute__ (3); + + +/* Find the CU containing ADDR and return its DIE. */ +extern Dwarf_Die *dwfl_addrdie (Dwfl *dwfl, Dwarf_Addr addr, Dwarf_Addr *bias) + __nonnull_attribute__ (3); +extern Dwarf_Die *dwfl_module_addrdie (Dwfl_Module *mod, + Dwarf_Addr addr, Dwarf_Addr *bias) + __nonnull_attribute__ (3); + +/* Iterate through the CUs, start with null for LASTCU. */ +extern Dwarf_Die *dwfl_nextcu (Dwfl *dwfl, Dwarf_Die *lastcu, Dwarf_Addr *bias) + __nonnull_attribute__ (3); +extern Dwarf_Die *dwfl_module_nextcu (Dwfl_Module *mod, + Dwarf_Die *lastcu, Dwarf_Addr *bias) + __nonnull_attribute__ (3); + +/* Return the module containing the CU DIE. */ +extern Dwfl_Module *dwfl_cumodule (Dwarf_Die *cudie); + + +/* Get source for address. */ +extern Dwfl_Line *dwfl_module_getsrc (Dwfl_Module *mod, Dwarf_Addr addr); +extern Dwfl_Line *dwfl_getsrc (Dwfl *dwfl, Dwarf_Addr addr); + +/* Get address for source. */ +extern int dwfl_module_getsrc_file (Dwfl_Module *mod, + const char *fname, int lineno, int column, + Dwfl_Line ***srcsp, size_t *nsrcs); + +/* Return the module containing this line record. */ +extern Dwfl_Module *dwfl_linemodule (Dwfl_Line *line); + +/* Return the source file name and fill in other information. + Arguments may be null for unneeded fields. */ +extern const char *dwfl_lineinfo (Dwfl_Line *line, Dwarf_Addr *addr, + int *linep, int *colp, + Dwarf_Word *mtime, Dwarf_Word *length); + + +/* Find the symbol that ADDRESS lies inside, and return its name. */ +const char *dwfl_module_addrname (Dwfl_Module *mod, GElf_Addr address); + + + +#endif /* libdwfl.h */ diff --git a/libdwfl/libdwfl.map b/libdwfl/libdwfl.map new file mode 100644 index 0000000..1cf3d3f --- /dev/null +++ b/libdwfl/libdwfl.map @@ -0,0 +1,39 @@ +ELFUTILS_1.0 { + global: + dwfl_addrdie; + dwfl_addrdwarf; + dwfl_addrmodule; + dwfl_begin; + dwfl_end; + dwfl_errmsg; + dwfl_errno; + dwfl_getdwarf; + dwfl_getsrc; + dwfl_linecu; + dwfl_lineinfo; + dwfl_linemodule; + dwfl_linux_kernel_find_elf; + dwfl_linux_kernel_module_section_address; + dwfl_linux_kernel_report_kernel; + dwfl_linux_kernel_report_modules; + dwfl_linux_proc_find_elf; + dwfl_linux_proc_report; + dwfl_module_addrdie; + dwfl_module_addrname; + dwfl_module_getdwarf; + dwfl_module_getelf; + dwfl_module_getsrc; + dwfl_module_getsrc_file; + dwfl_module_info; + dwfl_module_nextcu; + dwfl_nextcu; + dwfl_report_begin; + dwfl_report_elf; + dwfl_report_end; + dwfl_report_module; + dwfl_standard_argp; + dwfl_standard_find_debuginfo; + + local: + *; +}; diff --git a/libdwfl/libdwflP.h b/libdwfl/libdwflP.h new file mode 100644 index 0000000..ccf6ba5 --- /dev/null +++ b/libdwfl/libdwflP.h @@ -0,0 +1,237 @@ +/* Internal definitions for libdwfl. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBDWFLP_H +#define _LIBDWFLP_H 1 + +#ifndef PACKAGE +# include +#endif +#include +#include +#include +#include +#include +#include +#include + +/* gettext helper macros. */ +#define _(Str) dgettext ("elfutils", Str) + +#define DWFL_ERRORS \ + DWFL_ERROR (NOERROR, N_("no error")) \ + DWFL_ERROR (UNKNOWN_ERROR, N_("unknown error")) \ + DWFL_ERROR (NOMEM, N_("out of memory")) \ + DWFL_ERROR (ERRNO, N_("See errno")) \ + DWFL_ERROR (LIBELF, N_("See elf_errno")) \ + DWFL_ERROR (LIBDW, N_("See dwarf_errno")) \ + DWFL_ERROR (LIBEBL, N_("See ebl_errno (XXX missing)")) \ + DWFL_ERROR (NOREL, N_("Callbacks missing for ET_REL file")) \ + DWFL_ERROR (BADRELTYPE, N_("Unsupported relocation type")) \ + DWFL_ERROR (BADRELOFF, N_("r_offset is bogus")) \ + DWFL_ERROR (BADSTROFF, N_("offset out of range")) \ + DWFL_ERROR (RELUNDEF, N_("relocation refers to undefined symbol")) \ + DWFL_ERROR (CB, N_("Callback returned failure")) \ + DWFL_ERROR (NO_DWARF, N_("No DWARF information found")) \ + DWFL_ERROR (NO_SYMTAB, N_("No symbol table found")) \ + DWFL_ERROR (NO_PHDR, N_("No ELF program headers")) \ + DWFL_ERROR (OVERLAP, N_("address range overlaps an existing module")) \ + DWFL_ERROR (ADDR_OUTOFRANGE, N_("address out of range")) \ + DWFL_ERROR (NO_MATCH, N_("no matching address range")) \ + DWFL_ERROR (TRUNCATED, N_("image truncated")) \ + DWFL_ERROR (BADELF, N_("not a valid ELF file")) + +#define DWFL_ERROR(name, text) DWFL_E_##name, +typedef enum { DWFL_ERRORS DWFL_E_NUM } Dwfl_Error; +#undef DWFL_ERROR + +#define OTHER_ERROR(name) ((unsigned int) DWFL_E_##name << 16) +#define DWFL_E(name, errno) (OTHER_ERROR (name) | (errno)) + +extern int __libdwfl_canon_error (Dwfl_Error error) internal_function; +extern void __libdwfl_seterrno (Dwfl_Error error) internal_function; + +struct Dwfl +{ + const Dwfl_Callbacks *callbacks; + + Dwfl_Module *modulelist; /* List in order used by full traversals. */ + + Dwfl_Module **modules; + size_t nmodules; +}; + +struct dwfl_file +{ + char *name; + int fd; + + Elf *elf; + GElf_Addr bias; /* Actual load address - p_vaddr. */ +}; + +struct Dwfl_Module +{ + Dwfl *dwfl; + struct Dwfl_Module *next; /* Link on Dwfl.moduelist. */ + + void *userdata; + + char *name; /* Iterator name for this module. */ + GElf_Addr low_addr, high_addr; + + struct dwfl_file main, debug; + Ebl *ebl; + bool isrel; /* True iff this is an ET_REL file. */ + Dwfl_Error elferr; /* Previous failure to open main file. */ + + struct dwfl_file *symfile; /* Either main or debug. */ + Elf_Data *symdata; /* Data in the ELF symbol table section. */ + size_t syments; /* sh_size / sh_entsize of that section. */ + const Elf_Data *symstrdata; /* Data for its string table. */ + Elf_Data *symxndxdata; /* Data in the extended section index table. */ + Dwfl_Error symerr; /* Previous failure to load symbols. */ + + Dwarf *dw; /* libdw handle for its debugging info. */ + Dwfl_Error dwerr; /* Previous failure to load info. */ + + /* Known CU's in this module. */ + struct dwfl_cu *first_cu, **cu; + unsigned int ncu; + + void *lazy_cu_root; /* Table indexed by Dwarf_Off of CU. */ + unsigned int lazycu; /* Possible users, deleted when none left. */ + + struct dwfl_arange *aranges; /* Mapping of addresses in module to CUs. */ + unsigned int naranges; + + bool gc; /* Mark/sweep flag. */ +}; + + + +/* Information cached about each CU in Dwfl_Module.dw. */ +struct dwfl_cu +{ + /* This caches libdw information about the CU. It's also the + address passed back to users, so we take advantage of the + fact that it's placed first to cast back. */ + Dwarf_Die die; + + Dwfl_Module *mod; /* Pointer back to containing module. */ + + struct dwfl_cu *next; /* CU immediately following in the file. */ + + struct Dwfl_Lines *lines; +}; + +struct Dwfl_Lines +{ + struct dwfl_cu *cu; + + /* This is what the opaque Dwfl_Line * pointers we pass to users are. + We need to recover pointers to our struct dwfl_cu and a record in + libdw's Dwarf_Line table. To minimize the memory used in addition + to libdw's Dwarf_Lines buffer, we just point to our own index in + this table, and have one pointer back to the CU. The indices here + match those in libdw's Dwarf_CU.lines->info table. */ + struct Dwfl_Line + { + unsigned int idx; /* My index in the dwfl_cu.lines table. */ + } idx[0]; +}; + +static inline struct dwfl_cu * +dwfl_linecu (const Dwfl_Line *line) +{ + const struct Dwfl_Lines *lines = ((const void *) line + - offsetof (struct Dwfl_Lines, + idx[line->idx])); + return lines->cu; +} + +/* This describes a contiguous address range that lies in a single CU. + We condense runs of Dwarf_Arange entries for the same CU into this. */ +struct dwfl_arange +{ + struct dwfl_cu *cu; + size_t arange; /* Index in Dwarf_Aranges. */ +}; + + + + +extern void __libdwfl_module_free (Dwfl_Module *mod) internal_function; + + +/* Process relocations in debugging sections in an ET_REL file. + MOD->debug.elf must be opened with ELF_C_READ_MMAP_PRIVATE or ELF_C_READ, + to make it possible to relocate the data in place (or ELF_C_RDWR or + ELF_C_RDWR_MMAP if you intend to modify the Elf file on disk). After + this, dwarf_begin_elf on MOD->debug.elf will read the relocated data. */ +extern Dwfl_Error __libdwfl_relocate (Dwfl_Module *) internal_function; + +/* Adjust *VALUE from section-relative to absolute. + MOD->dwfl->callbacks->section_address is called to determine the actual + address of a loaded section. */ +extern Dwfl_Error __libdwfl_relocate_value (Dwfl_Module *mod, + size_t m_shstrndx, + Elf32_Word shndx, + GElf_Addr *value) + internal_function; + +/* Iterate through all the CU's in the module. Start by passing a null + LASTCU, and then pass the last *CU returned. Success return with null + *CU no more CUs. */ +extern Dwfl_Error __libdwfl_nextcu (Dwfl_Module *mod, struct dwfl_cu *lastcu, + struct dwfl_cu **cu) internal_function; + +/* Find the CU by address. */ +extern Dwfl_Error __libdwfl_addrcu (Dwfl_Module *mod, Dwarf_Addr addr, + struct dwfl_cu **cu) internal_function; + +/* Ensure that CU->lines (and CU->cu->lines) is set up. */ +extern Dwfl_Error __libdwfl_cu_getsrclines (struct dwfl_cu *cu) + internal_function; + + + + +/* Avoid PLT entries. */ +INTDECL (dwfl_begin) +INTDECL (dwfl_errmsg) +INTDECL (dwfl_addrmodule) +INTDECL (dwfl_addrdwarf) +INTDECL (dwfl_addrdie) +INTDECL (dwfl_module_addrdie) +INTDECL (dwfl_module_getdwarf) +INTDECL (dwfl_module_getelf) +INTDECL (dwfl_module_getsrc) +INTDECL (dwfl_report_elf) +INTDECL (dwfl_report_begin) +INTDECL (dwfl_report_module) +INTDECL (dwfl_report_end) +INTDECL (dwfl_standard_find_debuginfo) +INTDECL (dwfl_linux_kernel_find_elf) +INTDECL (dwfl_linux_kernel_module_section_address) +INTDECL (dwfl_linux_proc_report) +INTDECL (dwfl_linux_proc_find_elf) +INTDECL (dwfl_linux_kernel_report_kernel) +INTDECL (dwfl_linux_kernel_report_modules) + +/* Leading arguments standard to callbacks passed a Dwfl_Module. */ +#define MODCB_ARGS(mod) (mod), &(mod)->userdata, (mod)->name, (mod)->low_addr +#define CBFAIL (errno ? DWFL_E (ERRNO, errno) : DWFL_E_CB); + + +#endif /* libdwflP.h */ diff --git a/libdwfl/lines.c b/libdwfl/lines.c new file mode 100644 index 0000000..3eb4c19 --- /dev/null +++ b/libdwfl/lines.c @@ -0,0 +1,37 @@ +/* Fetch source line info for CU. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include "../libdw/libdwP.h" + +Dwfl_Error +internal_function_def +__libdwfl_cu_getsrclines (struct dwfl_cu *cu) +{ + if (cu->lines == NULL) + { + Dwarf_Lines *lines; + size_t nlines; + if (dwarf_getsrclines (&cu->die, &lines, &nlines) != 0) + return DWFL_E_LIBDW; + + cu->lines = malloc (offsetof (struct Dwfl_Lines, idx[nlines])); + if (cu->lines == NULL) + return DWFL_E_NOMEM; + cu->lines->cu = cu; + for (unsigned int i = 0; i < nlines; ++i) + cu->lines->idx[i].idx = i; + } + + return DWFL_E_NOERROR; +} diff --git a/libdwfl/linux-kernel-modules.c b/libdwfl/linux-kernel-modules.c new file mode 100644 index 0000000..65e5ca2 --- /dev/null +++ b/libdwfl/linux-kernel-modules.c @@ -0,0 +1,243 @@ +/* Standard libdwfl callbacks for debugging the running Linux kernel. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#undef _FILE_OFFSET_BITS /* Doesn't jibe with fts. */ + +#include "libdwflP.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +#define MODULEDIRFMT "/lib/modules/%s" + +#define MODULELIST "/proc/modules" +#define SECADDRFMT "/sys/module/%s/sections/%s" + + +static inline const char * +kernel_release (void) +{ + /* Cache the `uname -r` string we'll use. */ + static struct utsname utsname; + if (utsname.release[0] == '\0' && uname (&utsname) != 0) + return NULL; + return utsname.release; +} + +/* Find the ELF file for the running kernel and dwfl_report_elf it. */ +int +dwfl_linux_kernel_report_kernel (Dwfl *dwfl) +{ + if (dwfl == NULL) + return -1; + + const char *release = kernel_release (); + if (release == NULL) + return errno; + + char *fname = NULL; + asprintf (&fname, "/boot/vmlinux-%s", release); + if (fname == NULL) + return -1; + int fd = open64 (fname, O_RDONLY); + if (fd < 0) + { + free (fname); + fname = NULL; + asprintf (&fname, "/usr/lib/debug" MODULEDIRFMT "/vmlinux", release); + if (fname == NULL) + return -1; + fd = open64 (fname, O_RDONLY); + } + + int result = 0; + if (fd < 0) + result = errno; + else if (INTUSE(dwfl_report_elf) (dwfl, "kernel", fname, fd, 0) == NULL) + { + close (fd); + result = -1; + } + + free (fname); + + return result; +} +INTDEF (dwfl_linux_kernel_report_kernel) + +/* Dwfl_Callbacks.find_elf for the running Linux kernel and its modules. */ + +int +dwfl_linux_kernel_find_elf (Dwfl_Module *mod __attribute__ ((unused)), + void **userdata __attribute__ ((unused)), + const char *module_name, + Dwarf_Addr base __attribute__ ((unused)), + char **file_name, + Elf **elfp __attribute__ ((unused))) +{ + const char *release = kernel_release (); + if (release == NULL) + return -1; + + /* Do "find /lib/modules/`uname -r` -name MODULE_NAME.ko". */ + + char *modulesdir[] = { NULL, NULL }; + asprintf (&modulesdir[0], MODULEDIRFMT "/kernel", release); + if (modulesdir[0] == NULL) + return -1; + + FTS *fts = fts_open (modulesdir, FTS_LOGICAL | FTS_NOSTAT, NULL); + if (fts == NULL) + { + free (modulesdir[0]); + return -1; + } + + size_t namelen = strlen (module_name); + FTSENT *f; + int error = ENOENT; + while ((f = fts_read (fts)) != NULL) + { + error = ENOENT; + switch (f->fts_info) + { + case FTS_F: + case FTS_NSOK: + /* See if this file name is "MODULE_NAME.ko". */ + if (f->fts_namelen == namelen + 3 + && !memcmp (f->fts_name, module_name, namelen) + && !memcmp (f->fts_name + namelen, ".ko", 4)) + { + int fd = open64 (f->fts_accpath, O_RDONLY); + *file_name = strdup (f->fts_path); + fts_close (fts); + if (fd < 0) + free (*file_name); + else if (*file_name == NULL) + { + close (fd); + fd = -1; + } + return fd; + } + break; + + case FTS_ERR: + case FTS_DNR: + case FTS_NS: + error = f->fts_errno; + break; + + default: + break; + } + } + + errno = error; + return -1; +} +INTDEF (dwfl_linux_kernel_find_elf) + +/* Dwfl_Callbacks.section_address for kernel modules in the running Linux. + We read the information from /sys/module directly. */ + +int +dwfl_linux_kernel_module_section_address +(Dwfl_Module *mod __attribute__ ((unused)), + void **userdata __attribute__ ((unused)), + const char *modname, Dwarf_Addr base __attribute__ ((unused)), + const char *secname, Dwarf_Addr *addr) +{ + char *sysfile = NULL; + asprintf (&sysfile, SECADDRFMT, modname, secname); + if (sysfile == NULL) + return ENOMEM; + + FILE *f = fopen (sysfile, "r"); + if (f == NULL) + { + if (errno == ENOENT) + { + /* The .modinfo and .data.percpu sections are never kept + loaded in the kernel. If the kernel was compiled without + CONFIG_MODULE_UNLOAD, the .exit.* sections are not + actually loaded at all. + + Just relocate these bogusly to zero. This part of the + debug information will not be of any use. */ + + if (!strcmp (secname, ".modinfo") + || !strcmp (secname, ".data.percpu") + || !strncmp (secname, ".exit", 5)) + { + *addr = 0; + return DWARF_CB_OK; + } + } + + return DWARF_CB_ABORT; + } + + (void) __fsetlocking (f, FSETLOCKING_BYCALLER); + + int result = (fscanf (f, "%" PRIi64 "\n", addr) == 1 ? 0 + : ferror_unlocked (f) ? errno : ENOEXEC); + fclose (f); + + if (result == 0) + return DWARF_CB_OK; + + errno = result; + return DWARF_CB_ABORT; +} +INTDEF (dwfl_linux_kernel_module_section_address) + +int +dwfl_linux_kernel_report_modules (Dwfl *dwfl) +{ + FILE *f = fopen (MODULELIST, "r"); + if (f == NULL) + return errno; + + (void) __fsetlocking (f, FSETLOCKING_BYCALLER); + + int result = 0; + Dwarf_Addr modaddr; + unsigned long int modsz; + char modname[128]; + while (fscanf (f, "%128s %lu %*s %*s %*s %" PRIi64 "\n", + modname, &modsz, &modaddr) == 3) + if (INTUSE(dwfl_report_module) (dwfl, modname, + modaddr, modaddr + modsz) == NULL) + { + result = -1; + break; + } + + if (result == 0) + result = ferror_unlocked (f) ? errno : feof_unlocked (f) ? 0 : ENOEXEC; + + fclose (f); + + return result; +} +INTDEF (dwfl_linux_kernel_report_modules) diff --git a/libdwfl/linux-proc-maps.c b/libdwfl/linux-proc-maps.c new file mode 100644 index 0000000..2611c73 --- /dev/null +++ b/libdwfl/linux-proc-maps.c @@ -0,0 +1,285 @@ +/* Standard libdwfl callbacks for debugging a live Linux process. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +#define PROCMAPSFMT "/proc/%d/maps" +#define PROCMEMFMT "/proc/%d/mem" +#define PROCAUXVFMT "/proc/%d/auxv" + + +/* Search /proc/PID/auxv for the AT_SYSINFO_EHDR tag. */ + +static int +find_sysinfo_ehdr (pid_t pid, GElf_Addr *sysinfo_ehdr) +{ + char *fname = NULL; + asprintf (&fname, PROCAUXVFMT, pid); + if (fname == NULL) + return ENOMEM; + + int fd = open64 (fname, O_RDONLY); + free (fname); + if (fd < 0) + return errno == ENOENT ? 0 : errno; + + ssize_t nread; + do + { + union + { + char buffer[sizeof (long int) * 2 * 64]; + Elf64_auxv_t a64[sizeof (long int) * 2 * 64 / sizeof (Elf64_auxv_t)]; + Elf32_auxv_t a32[sizeof (long int) * 2 * 32 / sizeof (Elf32_auxv_t)]; + } d; + nread = read (fd, &d, sizeof d); + if (nread > 0) + { + switch (sizeof (long int)) + { + case 4: + for (size_t i = 0; (char *) &d.a32[i] < &d.buffer[nread]; ++i) + if (d.a32[i].a_type == AT_SYSINFO_EHDR) + { + *sysinfo_ehdr = d.a32[i].a_un.a_val; + nread = 0; + break; + } + break; + case 8: + for (size_t i = 0; (char *) &d.a64[i] < &d.buffer[nread]; ++i) + if (d.a64[i].a_type == AT_SYSINFO_EHDR) + { + *sysinfo_ehdr = d.a64[i].a_un.a_val; + nread = 0; + break; + } + break; + default: + abort (); + break; + } + } + } + while (nread > 0); + + close (fd); + + return nread < 0 ? errno : 0; +} + +int +dwfl_linux_proc_report (Dwfl *dwfl, pid_t pid) +{ + if (dwfl == NULL) + return -1; + + /* We'll notice the AT_SYSINFO_EHDR address specially when we hit it. */ + GElf_Addr sysinfo_ehdr = 0; + int result = find_sysinfo_ehdr (pid, &sysinfo_ehdr); + if (result != 0) + return result; + + char *fname = NULL; + asprintf (&fname, PROCMAPSFMT, pid); + if (fname == NULL) + return ENOMEM; + + FILE *f = fopen (fname, "r"); + free (fname); + if (f == NULL) + return errno; + + (void) __fsetlocking (f, FSETLOCKING_BYCALLER); + + unsigned int last_dmajor = -1, last_dminor = -1; + uint64_t last_ino = -1; + char *last_file = NULL; + Dwarf_Addr low = 0, high = 0; + + inline bool report (void) + { + if (last_file != NULL) + { + if (INTUSE(dwfl_report_module) (dwfl, last_file, low, high) == NULL) + { + free (last_file); + return true; + } + last_file = NULL; + } + return false; + } + + char *line = NULL; + size_t linesz; + ssize_t len; + while ((len = getline (&line, &linesz, f)) > 0) + { + if (line[len - 1] == '\n') + line[len - 1] = '\0'; + + Dwarf_Addr start, end, offset; + unsigned int dmajor, dminor; + uint64_t ino; + int nread = -1; + if (sscanf (line, "%" PRIx64 "-%" PRIx64 " %*s %" PRIx64 + " %x:%x %" PRIi64 " %n", + &start, &end, &offset, &dmajor, &dminor, &ino, &nread) < 6 + || nread <= 0) + { + free (line); + return ENOEXEC; + } + + /* If this is the special mapping AT_SYSINFO_EHDR pointed us at, + report the last one and then this special one. */ + if (start == sysinfo_ehdr && start != 0) + { + if (report ()) + { + bad_report: + free (line); + fclose (f); + return -1; + } + + low = start; + high = end; + if (asprintf (&last_file, "[vdso: %d]", (int) pid) < 0 + || report ()) + goto bad_report; + } + + char *file = line + nread + strspn (line + nread, " \t"); + if (file[0] == '\0' || (ino == 0 && dmajor == 0 && dminor == 0)) + /* This line doesn't indicate a file mapping. */ + continue; + + if (last_file != NULL + && ino == last_ino && dmajor == last_dmajor && dminor == last_dminor) + { + /* This is another portion of the same file's mapping. */ + assert (!strcmp (last_file, file)); + high = end; + } + else + { + /* This is a different file mapping. Report the last one. */ + if (report ()) + goto bad_report; + low = start; + high = end; + last_file = strdup (file); + last_ino = ino; + last_dmajor = dmajor; + last_dminor = dminor; + } + } + free (line); + + result = ferror_unlocked (f) ? errno : feof_unlocked (f) ? 0 : ENOEXEC; + fclose (f); + + /* Report the final one. */ + bool lose = report (); + + return result != 0 ? result : lose ? -1 : 0; +} +INTDEF (dwfl_linux_proc_report) + + +static ssize_t +read_proc_memory (void *arg, void *data, GElf_Addr address, + size_t minread, size_t maxread) +{ + const int fd = *(const int *) arg; + ssize_t nread = pread64 (fd, data, maxread, (off64_t) address); + if (nread > 0 && (size_t) nread < minread) + nread = 0; + return nread; +} + +extern Elf *elf_from_remote_memory (GElf_Addr ehdr_vma, + GElf_Addr *loadbasep, + ssize_t (*read_memory) (void *arg, + void *data, + GElf_Addr address, + size_t minread, + size_t maxread), + void *arg); + + +/* Dwfl_Callbacks.find_elf */ + +int +dwfl_linux_proc_find_elf (Dwfl_Module *mod __attribute__ ((unused)), + void **userdata __attribute__ ((unused)), + const char *module_name, Dwarf_Addr base, + char **file_name, Elf **elfp) +{ + if (module_name[0] == '/') + { + int fd = open64 (module_name, O_RDONLY); + if (fd >= 0) + { + *file_name = strdup (module_name); + if (*file_name == NULL) + { + close (fd); + return ENOMEM; + } + } + return fd; + } + + int pid; + if (sscanf (module_name, "[vdso: %d]", &pid) == 1) + { + /* Special case for in-memory ELF image. */ + + char *fname = NULL; + asprintf (&fname, PROCMEMFMT, pid); + if (fname == NULL) + return -1; + + int fd = open64 (fname, O_RDONLY); + free (fname); + if (fd < 0) + return -1; + + *elfp = elf_from_remote_memory (base, NULL, &read_proc_memory, &fd); + + close (fd); + + *file_name = NULL; + return -1; + } + + abort (); + return -1; +} +INTDEF (dwfl_linux_proc_find_elf) diff --git a/libdwfl/loc2c-runtime.h b/libdwfl/loc2c-runtime.h new file mode 100644 index 0000000..af27f79 --- /dev/null +++ b/libdwfl/loc2c-runtime.h @@ -0,0 +1,125 @@ +/* target operations */ + +#include +#define intptr_t long +#define uintptr_t unsigned long + + +/* These three macro definitions are generic, just shorthands + used by the generated code. */ + +#define op_abs(x) (x < 0 ? -x : x) + +#define fetch_bitfield(target, base, higherbits, nbits) \ + target = (((base) >> (sizeof (base) * 8 - (higherbits) - (nbits))) \ + & (((__typeof (base)) 1 << (nbits)) - 1)) + +#define store_bitfield(target, base, higherbits, nbits) \ + target = (target \ + &~ ((((__typeof (base)) 1 << (nbits)) - 1) \ + << (sizeof (base) * 8 - (higherbits) - (nbits))) \ + | ((__typeof (base)) (value) \ + << (sizeof (base) * 8 - (higherbits) - (nbits)))) + + +/* These operations are target-specific. */ +#include + +#define fetch_register(regno) ((intptr_t) regs->dwarf_register_##regno) + +#if defined __i386__ + +#define dwarf_register_0 eax +#define dwarf_register_1 ecx +#define dwarf_register_2 edx +#define dwarf_register_3 ebx +#define dwarf_register_4 esp +#define dwarf_register_5 ebp +#define dwarf_register_6 esi +#define dwarf_register_7 edi + +#elif defined __x86_64__ + +#define dwarf_register_0 eax +#define dwarf_register_1 edx +#define dwarf_register_2 ecx +#define dwarf_register_3 ebx +#define dwarf_register_4 esi +#define dwarf_register_5 edi +#define dwarf_register_6 ebp +#define dwarf_register_7 esp +#define dwarf_register_8 r8 +#define dwarf_register_9 r9 +#define dwarf_register_10 r10 +#define dwarf_register_11 r11 +#define dwarf_register_12 r12 +#define dwarf_register_13 r13 +#define dwarf_register_14 r14 +#define dwarf_register_15 r15 + +#elif defined __powerpc__ + +#undef fetch_register +#define fetch_register(regno) ((intptr_t) regs->gpr[regno]) + +#endif + +#if defined __i386__ || defined __x86_64__ + +#define deref(size, addr) \ + ({ \ + int _bad = 0; \ + u8 _b; u16 _w; u32 _l; u64 _q; \ + intptr_t _v; \ + switch (size) \ + { \ + case 1: __get_user_asm(_b,addr,_bad,"b","b","=q",1); _v = _b; break; \ + case 2: __get_user_asm(_w,addr,_bad,"w","w","=r",1); _v = _w; break; \ + case 4: __get_user_asm(_l,addr,_bad,"l","","=r",1); _v = _l; break; \ + case 8: __get_user_asm(_q,addr,_bad,"q","","=r",1); _v = _q; break; \ + default: _v = __get_user_bad(); \ + } \ + if (_bad) \ + goto deref_fault; \ + _v; \ + }) + +#elif defined __powerpc64__ + +#define deref(size, addr) \ + ({ \ + int _bad = 0; \ + intptr_t _v; \ + switch (size) \ + { \ + case 1: __get_user_asm(_v,addr,_bad,"lbz",1); break; \ + case 2: __get_user_asm(_v,addr,_bad,"lhz",1); break; \ + case 4: __get_user_asm(_v,addr,_bad,"lwz",1); break; \ + case 8: __get_user_asm(_v,addr,_bad,"ld",1); break; \ + default: _v = __get_user_bad(); \ + } \ + if (_bad) \ + goto deref_fault; \ + _v; \ + }) + +#elif defined __powerpc__ + +#define deref(size, addr) \ + ({ \ + int _bad = 0; \ + intptr_t _v; \ + switch (size) \ + { \ + case 1: __get_user_asm(_v,addr,_bad,"lbz"); break; \ + case 2: __get_user_asm(_v,addr,_bad,"lhz"); break; \ + case 4: __get_user_asm(_v,addr,_bad,"lwz"); break; \ + case 8: __get_user_asm(_v,addr,_bad,"ld"); break; \ + default: _v = __get_user_bad(); \ + } \ + if (_bad) \ + goto deref_fault; \ + _v; \ + }) + +#endif diff --git a/libdwfl/loc2c.c b/libdwfl/loc2c.c new file mode 100644 index 0000000..816eb06 --- /dev/null +++ b/libdwfl/loc2c.c @@ -0,0 +1,1398 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define _(x) x + +#define STACK_TYPE "intptr_t" /* Must be the signed type. */ +#define UTYPE "uintptr_t" /* Must be the unsigned type. */ +#define SFORMAT "%" PRId64 "L" +#define UFORMAT "%" PRIu64 "UL" +#define AFORMAT "%#" PRIx64 "UL" +#define STACKFMT "s%u" + +struct location +{ + struct location *next; + + const Dwarf_Loc *ops; + size_t nops; + + Dwarf_Word byte_size; + + enum { loc_address, loc_register, loc_noncontiguous, loc_final } type; + union + { + struct /* loc_address or loc_final */ + { + char *program; /* C fragment, leaves address in s0. */ + unsigned int stack_depth; /* Temporaries "s0.." used by it. */ + struct location *frame_base; + bool used_deref; /* Program uses "deref" macro. */ + } address; + unsigned int regno; /* loc_register */ + struct location *pieces; /* loc_noncontiguous */ + }; +}; + + +static const char * +dwarf_diename_integrate (Dwarf_Die *die) +{ + Dwarf_Attribute attr_mem; + return dwarf_formstring (dwarf_attr_integrate (die, DW_AT_name, &attr_mem)); +} + +/* Synthesize a new loc_address using the program on the obstack. */ +static struct location * +new_synthetic_loc (struct obstack *pool, struct location *origin, bool deref) +{ + obstack_1grow (pool, '\0'); + char *program = obstack_finish (pool); + + struct location *loc = obstack_alloc (pool, sizeof *loc); + loc->next = NULL; + loc->byte_size = 0; + loc->type = loc_address; + loc->address.program = program; + loc->address.stack_depth = 0; + loc->address.frame_base = NULL; + loc->address.used_deref = deref; + + if (origin->type == loc_register) + { + loc->ops = origin->ops; + loc->nops = origin->nops; + } + else + { + loc->ops = NULL; + loc->nops = 0; + } + + return loc; +} + + +/* Die in the middle of an expression. */ +static struct location * +lose (const char *failure, const Dwarf_Loc *lexpr, size_t i) +{ + error (2, 0, _("%s in DWARF expression [%Zu] at %" PRIu64 + " (%#x: %" PRId64 ", %" PRId64 ")"), + failure, i, lexpr[i].offset, + lexpr[i].atom, lexpr[i].number, lexpr[i].number2); + return NULL; +} + +/* Translate a (constrained) DWARF expression into C code + emitted to the obstack POOL. INDENT is the number of indentation levels. + ADDRBIAS is the difference between runtime and Dwarf info addresses. + INPUT is null or an expression to be initially pushed on the stack. + If NEED_FB is null, fail on DW_OP_fbreg, else set *NEED_FB to true + and emit "frame_base" for it. On success, set *MAX_STACK to the number + of stack slots required. On failure, set *LOSER to the index in EXPR + of the operation we could not handle. + + Returns a failure message or null for success. */ + +static const char * +translate (struct obstack *pool, int indent, Dwarf_Addr addrbias, + const Dwarf_Loc *expr, const size_t len, + struct location *input, + bool *need_fb, size_t *loser, + struct location *loc) +{ + loc->ops = expr; + loc->nops = len; + +#define DIE(msg) return (*loser = i, _(msg)) + +#define emit(fmt, ...) obstack_printf (pool, fmt, ## __VA_ARGS__) + + unsigned int stack_depth = 0, max_stack = 0; + inline void deepen (void) + { + if (stack_depth == max_stack) + ++max_stack; + } + +#define POP(var) \ + if (stack_depth > 0) \ + --stack_depth; \ + else if (tos_register != -1) \ + fetch_tos_register (); \ + else \ + goto underflow; \ + int var = stack_depth +#define PUSH (deepen (), stack_depth++) +#define STACK(idx) (stack_depth - 1 - (idx)) + + /* Don't put stack operations in the arguments to this. */ +#define push(fmt, ...) \ + emit ("%*s" STACKFMT " = " fmt ";\n", indent * 2, "", PUSH, ## __VA_ARGS__) + + int tos_register = -1; + inline void fetch_tos_register (void) + { + deepen (); + emit ("%*s" STACKFMT " = fetch_register (%d);\n", + indent * 2, "", stack_depth, tos_register); + tos_register = -1; + } + + if (input != NULL) + switch (input->type) + { + case loc_address: + push ("addr"); + break; + + case loc_register: + tos_register = input->regno; + break; + + default: + abort (); + break; + } + + size_t i; + + inline const char *finish (struct location *piece) + { + if (stack_depth > 1) + DIE ("multiple values left on stack"); + if (stack_depth == 1) + { + obstack_1grow (pool, '\0'); + char *program = obstack_finish (pool); + piece->type = loc_address; + piece->address.program = program; + piece->address.stack_depth = max_stack; + piece->address.frame_base = NULL; + } + else if (tos_register == -1) + DIE ("stack underflow"); + else if (obstack_object_size (pool) != 0) + DIE ("register value must stand alone in location expression"); + else + { + piece->type = loc_register; + piece->regno = tos_register; + } + return NULL; + } + + struct location *pieces = NULL, **tailpiece = &pieces; + size_t piece_expr_start = 0; + for (i = 0; i < len; ++i) + { + unsigned int reg; + uint_fast8_t sp; + Dwarf_Word value; + + switch (expr[i].atom) + { + /* Basic stack operations. */ + case DW_OP_nop: + break; + + case DW_OP_dup: + if (stack_depth < 1) + goto underflow; + else + { + unsigned int tos = STACK (0); + push (STACKFMT, tos); + } + break; + + case DW_OP_drop: + POP (ignore); + emit ("%*s/* drop " STACKFMT "*/\n", indent * 2, "", ignore); + break; + + case DW_OP_pick: + sp = expr[i].number; + op_pick: + if (sp >= stack_depth) + goto underflow; + sp = STACK (sp); + push (STACKFMT, sp); + break; + + case DW_OP_over: + sp = 1; + goto op_pick; + + case DW_OP_swap: + if (stack_depth < 2) + goto underflow; + deepen (); /* Use a temporary slot. */ + emit ("%*s" + STACKFMT " = " STACKFMT ", " + STACKFMT " = " STACKFMT ", " + STACKFMT " = " STACKFMT ";\n", + indent * 2, "", + STACK (-1), STACK (0), + STACK (0), STACK (1), + STACK (1), STACK (-1)); + break; + + case DW_OP_rot: + if (stack_depth < 3) + goto underflow; + deepen (); /* Use a temporary slot. */ + emit ("%*s" + STACKFMT " = " STACKFMT ", " + STACKFMT " = " STACKFMT ", " + STACKFMT " = " STACKFMT ", " + STACKFMT " = " STACKFMT ";\n", + indent * 2, "", + STACK (-1), STACK (0), + STACK (0), STACK (1), + STACK (1), STACK (2), + STACK (3), STACK (-1)); + break; + + + /* Control flow operations. */ + case DW_OP_skip: + { + Dwarf_Off target = expr[i].offset + 3 + expr[i].number; + while (i + 1 < len && expr[i + 1].offset < target) + ++i; + if (expr[i + 1].offset != target) + DIE ("invalid skip target"); + break; + } + + case DW_OP_bra: + DIE ("conditional branches not supported"); + break; + + + /* Memory access. */ + case DW_OP_deref: + { + POP (addr); + push ("deref (sizeof (void *), " STACKFMT ")", addr); + loc->address.used_deref = true; + } + break; + + case DW_OP_deref_size: + { + POP (addr); + push ("deref (" UFORMAT ", " STACKFMT ")", + expr[i].number, addr); + loc->address.used_deref = true; + } + break; + + case DW_OP_xderef: + { + POP (addr); + POP (as); + push ("xderef (sizeof (void *), " STACKFMT ", " STACKFMT ")", + addr, as); + loc->address.used_deref = true; + } + break; + + case DW_OP_xderef_size: + { + POP (addr); + POP (as); + push ("xderef (" UFORMAT ", " STACKFMT ", " STACKFMT ")", + expr[i].number, addr, as); + loc->address.used_deref = true; + } + break; + + /* Constant-value operations. */ + + case DW_OP_addr: + push (AFORMAT, addrbias + expr[i].number); + break; + + case DW_OP_lit0 ... DW_OP_lit31: + value = expr[i].atom - DW_OP_lit0; + goto op_const; + + case DW_OP_const1u: + case DW_OP_const1s: + case DW_OP_const2u: + case DW_OP_const2s: + case DW_OP_const4u: + case DW_OP_const4s: + case DW_OP_const8u: + case DW_OP_const8s: + case DW_OP_constu: + case DW_OP_consts: + value = expr[i].number; + op_const: + push (SFORMAT, value); + break; + + /* Arithmetic operations. */ +#define UNOP(dw_op, c_op) \ + case DW_OP_##dw_op: \ + { \ + POP (tos); \ + push ("%s (" STACKFMT ")", #c_op, tos); \ + } \ + break +#define BINOP(dw_op, c_op) \ + case DW_OP_##dw_op: \ + { \ + POP (b); \ + POP (a); \ + push (STACKFMT " %s " STACKFMT, a, #c_op, b); \ + } \ + break + + UNOP (abs, op_abs); + BINOP (and, &); + BINOP (div, /); + BINOP (minus, -); + BINOP (mod, %); + BINOP (mul, *); + UNOP (neg, -); + UNOP (not, ~); + BINOP (or, |); + BINOP (plus, +); + BINOP (shl, <<); + BINOP (shra, >>); + BINOP (xor, ^); + + /* Comparisons are binary operators too. */ + BINOP (le, <=); + BINOP (ge, >=); + BINOP (eq, ==); + BINOP (lt, <); + BINOP (gt, >); + BINOP (ne, !=); + +#undef UNOP +#undef BINOP + + case DW_OP_shr: + { + POP (b); + POP (a); + push ("(%s) " STACKFMT " >> (%s)" STACKFMT, + UTYPE, a, UTYPE, b); + break; + } + + case DW_OP_plus_uconst: + { + POP (x); + push (STACKFMT " + " UFORMAT, x, expr[i].number); + } + break; + + + /* Register-relative addressing. */ + case DW_OP_breg0 ... DW_OP_breg31: + reg = expr[i].atom - DW_OP_breg0; + value = expr[i].number; + goto op_breg; + + case DW_OP_bregx: + reg = expr[i].number; + value = expr[i].number2; + op_breg: + push ("fetch_register (%u) + " SFORMAT, reg, value); + break; + + case DW_OP_fbreg: + if (need_fb == NULL) + DIE ("DW_OP_fbreg from DW_AT_frame_base"); + *need_fb = true; + push ("frame_base + " SFORMAT, expr[i].number); + break; + + /* Direct register contents. */ + case DW_OP_reg0 ... DW_OP_reg31: + reg = expr[i].atom - DW_OP_reg0; + goto op_reg; + + case DW_OP_regx: + reg = expr[i].number; + op_reg: + tos_register = reg; + break; + + /* Special magic. */ + case DW_OP_piece: + if (stack_depth > 1) + /* If this ever happens we could copy the program. */ + DIE ("DW_OP_piece left multiple values on stack"); + else + { + struct location *piece = obstack_alloc (pool, sizeof *piece); + const char *failure = finish (piece); + if (unlikely (failure != NULL)) + return failure; + + piece->ops = &expr[piece_expr_start]; + piece->nops = i - piece_expr_start; + piece_expr_start = i + 1; + + piece->byte_size = expr[i].number; + + *tailpiece = piece; + tailpiece = &piece->next; + piece->next = NULL; + } + break; + + case DW_OP_push_object_address: + DIE ("XXX DW_OP_push_object_address"); + break; + + default: + DIE ("unrecognized operation"); + break; + } + } + + if (likely (pieces == NULL)) + return finish (loc); + + if (piece_expr_start != i) + DIE ("extra operations after last DW_OP_piece"); + + loc->type = loc_noncontiguous; + loc->pieces = pieces; + + return NULL; + + underflow: + DIE ("stack underflow"); + +#undef emit +#undef push +#undef PUSH +#undef POP +#undef STACK +#undef DIE +} + +/* Translate a location starting from an address or nothing. */ +static struct location * +location_from_address (struct obstack *pool, + int indent, Dwarf_Addr dwbias, + const Dwarf_Loc *expr, size_t len, Dwarf_Addr address, + struct location **input, Dwarf_Attribute *fb_attr) +{ + bool need_fb = false; + size_t loser; + struct location *loc = obstack_alloc (pool, sizeof *loc); + const char *failure = translate (pool, indent + 1, dwbias, expr, len, + *input, &need_fb, &loser, loc); + if (unlikely (failure != NULL)) + return lose (failure, expr, loser); + + loc->next = NULL; + if (need_fb) + { + /* The main expression uses DW_OP_fbreg, so we need to compute + the DW_AT_frame_base attribute expression's value first. */ + + Dwarf_Loc *fb_expr; + size_t fb_len; + switch (dwarf_addrloclists (fb_attr, address - dwbias, + &fb_expr, &fb_len, 1)) + { + case 1: /* Should always happen. */ + if (fb_len == 0) + goto fb_inaccessible; + break; + + default: /* Shouldn't happen. */ + case -1: + error (2, 0, "dwarf_addrloclists (form %#x): %s", + dwarf_whatform (fb_attr), dwarf_errmsg (-1)); + return NULL; + + case 0: /* Shouldn't happen. */ + fb_inaccessible: + error (2, 0, "DW_AT_frame_base not accessible at this address"); + return NULL; + } + + loc->address.frame_base = obstack_alloc (pool, sizeof *loc); + failure = translate (pool, indent + 1, dwbias, fb_expr, fb_len, NULL, + NULL, &loser, loc->address.frame_base); + if (unlikely (failure != NULL)) + return lose (failure, fb_expr, loser); + } + + if (*input != NULL) + (*input)->next = loc; + *input = loc; + + return loc; +} + +/* Translate a location starting from a non-address "on the top of the + stack". The *INPUT location is a register name or noncontiguous + object specification, and this expression wants to find the "address" + of an object relative to that "address". */ + +static struct location * +location_relative (struct obstack *pool, + int indent, Dwarf_Addr dwbias, + const Dwarf_Loc *expr, size_t len, Dwarf_Addr address, + struct location **input, Dwarf_Attribute *fb_attr) +{ + Dwarf_Sword *stack; + unsigned int stack_depth = 0, max_stack = 0; + inline void deepen (void) + { + if (stack_depth == max_stack) + { + ++max_stack; + obstack_blank (pool, sizeof stack[0]); + stack = (void *) obstack_base (pool); + } + } + +#define POP(var) \ + if (stack_depth > 0) \ + --stack_depth; \ + else \ + goto underflow; \ + int var = stack_depth +#define PUSH (deepen (), stack_depth++) +#define STACK(idx) (stack_depth - 1 - (idx)) +#define STACKWORD(idx) stack[STACK (idx)] + + /* Don't put stack operations in the arguments to this. */ +#define push(value) (stack[PUSH] = (value)) + + const char *failure = NULL; +#define DIE(msg) do { failure = _(msg); goto fail; } while (0) + + struct location *head = NULL; + size_t i; + for (i = 0; i < len; ++i) + { + uint_fast8_t sp; + Dwarf_Word value; + + switch (expr[i].atom) + { + /* Basic stack operations. */ + case DW_OP_nop: + break; + + case DW_OP_dup: + if (stack_depth < 1) + goto underflow; + else + { + unsigned int tos = STACK (0); + push (stack[tos]); + } + break; + + case DW_OP_drop: + if (stack_depth > 0) + --stack_depth; + else if (*input != NULL) + /* Mark that we have consumed the input. */ + *input = NULL; + else + /* Hits if cleared above, or if we had no input at all. */ + goto underflow; + break; + + case DW_OP_pick: + sp = expr[i].number; + op_pick: + if (sp >= stack_depth) + goto underflow; + sp = STACK (sp); + push (stack[sp]); + break; + + case DW_OP_over: + sp = 1; + goto op_pick; + + case DW_OP_swap: + if (stack_depth < 2) + goto underflow; + deepen (); /* Use a temporary slot. */ + STACKWORD (-1) = STACKWORD (0); + STACKWORD (0) = STACKWORD (1); + STACKWORD (1) = STACKWORD (-1); + break; + + case DW_OP_rot: + if (stack_depth < 3) + goto underflow; + deepen (); /* Use a temporary slot. */ + STACKWORD (-1) = STACKWORD (0); + STACKWORD (0) = STACKWORD (1); + STACKWORD (2) = STACKWORD (2); + STACKWORD (2) = STACKWORD (-1); + break; + + + /* Control flow operations. */ + case DW_OP_bra: + { + POP (taken); + if (stack[taken] == 0) + break; + } + /*FALLTHROUGH*/ + + case DW_OP_skip: + { + Dwarf_Off target = expr[i].offset + 3 + expr[i].number; + while (i + 1 < len && expr[i + 1].offset < target) + ++i; + if (expr[i + 1].offset != target) + DIE ("invalid skip target"); + break; + } + + /* Memory access. */ + case DW_OP_deref: + case DW_OP_deref_size: + case DW_OP_xderef: + case DW_OP_xderef_size: + + /* Register-relative addressing. */ + case DW_OP_breg0 ... DW_OP_breg31: + case DW_OP_bregx: + case DW_OP_fbreg: + + /* This started from a register, but now it's following a pointer. + So we can do the translation starting from address here. */ + return location_from_address (pool, indent, dwbias, + expr, len, address, input, fb_attr); + + + /* Constant-value operations. */ + case DW_OP_addr: + push (dwbias + expr[i].number); + break; + + case DW_OP_lit0 ... DW_OP_lit31: + value = expr[i].atom - DW_OP_lit0; + goto op_const; + + case DW_OP_const1u: + case DW_OP_const1s: + case DW_OP_const2u: + case DW_OP_const2s: + case DW_OP_const4u: + case DW_OP_const4s: + case DW_OP_const8u: + case DW_OP_const8s: + case DW_OP_constu: + case DW_OP_consts: + value = expr[i].number; + op_const: + push (value); + break; + + /* Arithmetic operations. */ +#define UNOP(dw_op, c_op) \ + case DW_OP_##dw_op: \ + { \ + POP (tos); \ + push (c_op (stack[tos])); \ + } \ + break +#define BINOP(dw_op, c_op) \ + case DW_OP_##dw_op: \ + { \ + POP (b); \ + POP (a); \ + push (stack[a] c_op stack[b]); \ + } \ + break + +#define op_abs(x) (x < 0 ? -x : x) + UNOP (abs, op_abs); + BINOP (and, &); + BINOP (div, /); + BINOP (mod, %); + BINOP (mul, *); + UNOP (neg, -); + UNOP (not, ~); + BINOP (or, |); + BINOP (shl, <<); + BINOP (shra, >>); + BINOP (xor, ^); + + /* Comparisons are binary operators too. */ + BINOP (le, <=); + BINOP (ge, >=); + BINOP (eq, ==); + BINOP (lt, <); + BINOP (gt, >); + BINOP (ne, !=); + +#undef UNOP +#undef BINOP + + case DW_OP_shr: + { + POP (b); + POP (a); + push ((Dwarf_Word) stack[a] >> (Dwarf_Word) stack[b]); + break; + } + + /* Simple addition we may be able to handle relative to + the starting register name. */ + case DW_OP_minus: + { + POP (tos); + value = -stack[tos]; + goto plus; + } + case DW_OP_plus: + { + POP (tos); + value = stack[tos]; + goto plus; + } + case DW_OP_plus_uconst: + value = expr[i].number; + plus: + if (stack_depth > 0) + { + /* It's just private diddling after all. */ + POP (a); + push (stack[a] + value); + break; + } + if (*input == NULL) + goto underflow; + + /* This is the primary real-world case: the expression takes + the input address and adds a constant offset. */ + + while ((*input)->type == loc_noncontiguous) + { + /* We are starting from a noncontiguous object (DW_OP_piece). + Find the piece we want. */ + + struct location *piece = (*input)->pieces; + while (piece != NULL && value >= piece->byte_size) + { + value -= piece->byte_size; + piece = piece->next; + } + if (piece == NULL) + DIE ("offset outside available pieces"); + + *input = piece; + } + + switch ((*input)->type) + { + case loc_address: + { + /* The piece we want is actually in memory. Use the same + program to compute the address from the preceding input. */ + + struct location *loc = obstack_alloc (pool, sizeof *loc); + *loc = **input; + if (head == NULL) + head = loc; + (*input)->next = loc; + if (value == 0) + { + /* The piece addresses exactly where we want to go. */ + loc->next = NULL; + *input = loc; + } + else + { + /* Add a second fragment to offset the piece address. */ + obstack_printf (pool, "%*saddr += " SFORMAT "\n", + indent * 2, "", value); + *input = loc->next = new_synthetic_loc (pool, *input, + false); + } + + if (i + 1 < len) + { + /* This expression keeps going, but further + computations now have an address to start with. + So we can punt to the address computation generator. */ + loc = location_from_address (pool, indent, dwbias, + &expr[i + 1], len - i - 1, + address, input, fb_attr); + if (loc == NULL) + return NULL; + } + + /* That's all she wrote. */ + return head; + } + + case loc_register: + // XXX + + default: + abort (); + } + break; + + /* Direct register contents. */ + case DW_OP_reg0 ... DW_OP_reg31: + case DW_OP_regx: + DIE ("register"); + break; + + /* Special magic. */ + case DW_OP_piece: + DIE ("DW_OP_piece"); + break; + + case DW_OP_push_object_address: + DIE ("XXX DW_OP_push_object_address"); + break; + + default: + DIE ("unrecognized operation"); + break; + } + } + + if (stack_depth > 1) + DIE ("multiple values left on stack"); + + if (stack_depth > 0) /* stack_depth == 1 */ + { + if (*input != NULL) + DIE ("multiple values left on stack"); + + /* Could handle this if it ever actually happened. */ + DIE ("relative expression computed constant"); + } + + return head; + + underflow: + if (*input == NULL) + DIE ("stack underflow"); + else + DIE ("cannot handle location expression"); + + fail: + return lose (failure, expr, i); +} + + +/* Translate a C fragment for the location expression, using *INPUT + as the starting location, begin from scratch if *INPUT is null. + If DW_OP_fbreg is used, it may have a subfragment computing from + the FB_ATTR location expression. + + On errors, exit and never return (XXX ?). On success, return the + first fragment created, which is also chained onto (*INPUT)->next. + *INPUT is then updated with the new tail of that chain. */ + +struct location * +c_translate_location (struct obstack *pool, + int indent, Dwarf_Addr dwbias, + Dwarf_Attribute *loc_attr, Dwarf_Addr address, + struct location **input, Dwarf_Attribute *fb_attr) +{ + Dwarf_Loc *expr; + size_t len; + switch (dwarf_addrloclists (loc_attr, address - dwbias, &expr, &len, 1)) + { + case 1: /* Should always happen. */ + if (len == 0) + goto inaccessible; + break; + + default: /* Shouldn't happen. */ + case -1: + error (2, 0, "dwarf_addrloclists (form %#x): %s", + dwarf_whatform (fb_attr), dwarf_errmsg (-1)); + return NULL; + + case 0: /* Shouldn't happen. */ + inaccessible: + error (2, 0, "not accessible at this address"); + return NULL; + } + + ++indent; + switch (*input == NULL ? loc_address : (*input)->type) + { + case loc_address: + /* We have a previous address computation. + This expression will compute starting with that on the stack. */ + return location_from_address (pool, indent, dwbias, expr, len, address, + input, fb_attr); + + case loc_noncontiguous: + case loc_register: + /* The starting point is not an address computation, but a + register. We can only handle limited computations from here. */ + return location_relative (pool, indent, dwbias, expr, len, address, + input, fb_attr); + + case loc_final: /* Bogus caller. */ + default: + abort (); + break; + } + + return NULL; +} + + +/* Emit "uintNN_t TARGET = ...;". */ +static bool +emit_base_fetch (struct obstack *pool, Dwarf_Word byte_size, + const char *target, bool decl, struct location *loc) +{ + if (decl) + obstack_printf (pool, "uint%" PRIu64 "_t ", byte_size * 8); + + switch (loc->type) + { + case loc_address: + if (byte_size != 0 && byte_size != (Dwarf_Word) -1) + obstack_printf (pool, "%s = deref (%" PRIu64 ", addr); ", + target, byte_size); + else + obstack_printf (pool, "%s = deref (sizeof %s, addr); ", + target, target); + return true; + + case loc_register: + obstack_printf (pool, "%s = fetch_register (%u);", target, loc->regno); + break; + + case loc_noncontiguous: + /* Could be handled if it ever happened. */ + error (2, 0, _("noncontiguous locations not supported")); + break; + + default: + abort (); + break; + } + + return false; +} + +/* Translate a fragment to dereference the given pointer type, + where *INPUT is the location of the pointer with that type. + + We chain on a loc_address program that yields this pointer value + (i.e. the location of what it points to). */ + +void +c_translate_pointer (struct obstack *pool, int indent, + Dwarf_Addr dwbias __attribute__ ((unused)), + Dwarf_Die *typedie, struct location **input) +{ + obstack_printf (pool, "%*s{ ", (indent + 2) * 2, ""); + + bool deref = false; + Dwarf_Attribute attr_mem; + Dwarf_Word byte_size; + if (dwarf_attr_integrate (typedie, DW_AT_byte_size, &attr_mem) == NULL) + { + obstack_printf (pool, "uintptr_t "); + emit_base_fetch (pool, 0, "tmp", false, *input); + } + else if (dwarf_formudata (&attr_mem, &byte_size) != 0) + error (2, 0, + _("cannot get byte_size attribute for type %s: %s"), + dwarf_diename_integrate (typedie) ?: "", + dwarf_errmsg (-1)); + else + deref = emit_base_fetch (pool, byte_size, "tmp", true, *input); + + obstack_printf (pool, " addr = tmp; }\n"); + + struct location *loc = new_synthetic_loc (pool, *input, deref); + (*input)->next = loc; + *input = loc; +} + +/* Determine the byte size of a base type. */ +static Dwarf_Word +base_byte_size (Dwarf_Die *typedie) +{ + Dwarf_Attribute attr_mem; + Dwarf_Word size; + if (dwarf_attr_integrate (typedie, DW_AT_byte_size, &attr_mem) != NULL + && dwarf_formudata (&attr_mem, &size) == 0) + return size; + + error (2, 0, + _("cannot get byte_size attribute for type %s: %s"), + dwarf_diename_integrate (typedie) ?: "", + dwarf_errmsg (-1)); + return -1; +} + +/* Emit a code fragment like: + { uintNN_t tmp = ...; S1 S2 S3, tmp, B0, Bn); } +*/ +static void +emit_bitfield (struct obstack *pool, int indent, + Dwarf_Die *die, Dwarf_Word byte_size, struct location *loc, + const char *s1, const char *s2, const char *s3) +{ + Dwarf_Word bit_offset, bit_size; + Dwarf_Attribute attr_mem; + if (dwarf_attr_integrate (die, DW_AT_bit_offset, &attr_mem) == NULL + || dwarf_formudata (&attr_mem, &bit_offset) != 0 + || dwarf_attr_integrate (die, DW_AT_bit_size, &attr_mem) == NULL + || dwarf_formudata (&attr_mem, &bit_size) != 0) + error (2, 0, _("cannot get bit field parameters: %s"), + dwarf_errmsg (-1)); + + /* Emit "{ uintNN_t tmp = ...;" to fetch the base type. */ + + obstack_printf (pool, "%*s{ ", indent * 2, ""); + emit_base_fetch (pool, byte_size, "tmp", true, loc); + + obstack_printf (pool, "%s%s%s, tmp, %" PRIu64 ", %" PRIu64 "); }\n", + s1, s2, s3, bit_offset, bit_size); +} + +/* Translate a fragment to fetch the value of variable or member DIE + at the *INPUT location and store it in variable TARGET. */ + +void +c_translate_fetch (struct obstack *pool, int indent, + Dwarf_Addr dwbias __attribute__ ((unused)), + Dwarf_Die *die, Dwarf_Attribute *typeattr, + struct location **input, const char *target) +{ + ++indent; + + Dwarf_Attribute size_attr; + Dwarf_Word byte_size; + if (dwarf_attr_integrate (die, DW_AT_byte_size, &size_attr) == NULL + || dwarf_formudata (&size_attr, &byte_size) != 0) + { + Dwarf_Die basedie; + if (dwarf_formref_die (typeattr, &basedie) == NULL) + error (2, 0, _("cannot get type of field: %s"), dwarf_errmsg (-1)); + byte_size = base_byte_size (&basedie); + } + + bool deref = false; + if (dwarf_hasattr_integrate (die, DW_AT_bit_offset)) + /* This is a bit field. */ + emit_bitfield (pool, indent, die, byte_size, *input, + "fetch_bitfield (", target, ""); + else + switch (byte_size) + { + case 1: + case 2: + case 4: + case 8: + obstack_printf (pool, "%*s", indent * 2, ""); + deref = emit_base_fetch (pool, byte_size, target, false, *input); + obstack_printf (pool, "\n"); + break; + + default: + /* Could handle this generating call to memcpy equivalent. */ + error (2, 0, _("fetch is larger than base integer types")); + break; + } + + struct location *loc = new_synthetic_loc (pool, *input, deref); + loc->type = loc_final; + (*input)->next = loc; + *input = loc; +} + +void +c_translate_addressof (struct obstack *pool, int indent, + Dwarf_Addr dwbias __attribute__ ((unused)), + Dwarf_Die *die, + Dwarf_Attribute *typeattr __attribute__ ((unused)), + struct location **input, const char *target) +{ + ++indent; + + if (dwarf_hasattr_integrate (die, DW_AT_bit_offset)) + error (2, 0, _("cannot take the address of a bit field")); + + switch ((*input)->type) + { + case loc_address: + obstack_printf (pool, "%*s%s = addr;\n", indent * 2, "", target); + (*input)->next = new_synthetic_loc (pool, *input, false); + (*input)->next->type = loc_final; + break; + + case loc_register: + error (2, 0, _("cannot take address of object in register")); + break; + case loc_noncontiguous: + error (2, 0, _("cannot take address of noncontiguous object")); + break; + + default: + abort(); + break; + } +} + + +/* Determine the element stride of an array type. */ +static Dwarf_Word +array_stride (Dwarf_Die *typedie) +{ + Dwarf_Attribute attr_mem; + if (dwarf_attr_integrate (typedie, DW_AT_stride_size, &attr_mem) != NULL) + { + Dwarf_Word stride; + if (dwarf_formudata (&attr_mem, &stride) == 0) + return stride; + error (2, 0, _("cannot get stride_size attribute array type %s: %s"), + dwarf_diename_integrate (typedie) ?: "", + dwarf_errmsg (-1)); + } + + Dwarf_Die die_mem; + if (dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem) == NULL + || dwarf_formref_die (&attr_mem, &die_mem) == NULL) + error (2, 0, _("cannot get element type of array type %s: %s"), + dwarf_diename_integrate (typedie) ?: "", + dwarf_errmsg (-1)); + + if (dwarf_attr_integrate (&die_mem, DW_AT_byte_size, &attr_mem) != NULL) + { + Dwarf_Word stride; + if (dwarf_formudata (&attr_mem, &stride) == 0) + return stride; + error (2, 0, + _("cannot get byte_size attribute for array element type %s: %s"), + dwarf_diename_integrate (&die_mem) ?: "", + dwarf_errmsg (-1)); + } + + error (2, 0, _("confused about array element size")); + return 0; +} + +void +c_translate_array (struct obstack *pool, int indent, + Dwarf_Addr dwbias __attribute__ ((unused)), + Dwarf_Die *typedie, struct location **input, + const char *idx, Dwarf_Word const_idx) +{ + ++indent; + + Dwarf_Word stride = array_stride (typedie); + + struct location *loc = *input; + while (loc->type == loc_noncontiguous) + { + if (idx != NULL) + error (2, 0, _("cannot dynamically index noncontiguous array")); + else + { + Dwarf_Word offset = const_idx * stride; + struct location *piece = loc->pieces; + while (piece != NULL && offset >= piece->byte_size) + { + offset -= piece->byte_size; + piece = piece->next; + } + if (piece == NULL) + error (2, 0, _("constant index is outside noncontiguous array")); + if (offset % stride != 0) + error (2, 0, _("noncontiguous array splits elements")); + const_idx = offset / stride; + loc = piece; + } + } + + switch (loc->type) + { + case loc_address: + ++indent; + if (idx != NULL) + obstack_printf (pool, "%*saddr += %s * " UFORMAT ";\n", + indent * 2, "", idx, stride); + else + obstack_printf (pool, "%*saddr += " UFORMAT " * " UFORMAT ";\n", + indent * 2, "", const_idx, stride); + loc = new_synthetic_loc (pool, loc, false); + break; + + case loc_register: + error (2, 0, _("cannot index array stored in a register")); + break; + + default: + abort(); + break; + } + + (*input)->next = loc; + *input = (*input)->next; +} + + +/* Emitting C code for finalized fragments. */ + + +#define emit(fmt, ...) fprintf (out, fmt, ## __VA_ARGS__) + +/* Open a block with a comment giving the original DWARF expression. */ +static void +emit_header (FILE *out, struct location *loc, unsigned int hindent) +{ + if (loc->ops == NULL) + emit ("%*s{ // synthesized\n", hindent * 2, ""); + else + { + emit ("%*s{ // DWARF expression:", hindent * 2, ""); + for (size_t i = 0; i < loc->nops; ++i) + { + emit (" %#x", loc->ops[i].atom); + if (loc->ops[i].number2 == 0) + { + if (loc->ops[i].number != 0) + emit ("(%" PRId64 ")", loc->ops[i].number); + } + else + emit ("(%" PRId64 ",%" PRId64 ")", + loc->ops[i].number, loc->ops[i].number2); + } + emit ("\n"); + } +} + +/* Emit a code fragment to assign the target variable to a register value. */ +static void +emit_loc_register (FILE *out, struct location *loc, unsigned int indent, + const char *target) +{ + assert (loc->type == loc_register); + + emit ("%*s%s = fetch_register (%u);\n", + indent * 2, "", target, loc->regno); +} + +/* Emit a code fragment to assign the target variable to an address. */ +static void +emit_loc_address (FILE *out, struct location *loc, unsigned int indent, + const char *target) +{ + assert (loc->type == loc_address); + + if (loc->address.stack_depth == 0) + /* Synthetic program. */ + emit ("%s", loc->address.program); + else + { + emit ("%*s%s " STACKFMT, (indent + 1) * 2, "", STACK_TYPE, 0); + for (unsigned int i = 1; i < loc->address.stack_depth; ++i) + emit (", " STACKFMT, i); + emit (";\n"); + + emit ("%s%*s%s = " STACKFMT ";\n", loc->address.program, + (indent + 1) * 2, "", target, 0); + } +} + +/* Emit a code fragment to declare the target variable and + assign it to an address-sized value. */ +static void +emit_loc_value (FILE *out, struct location *loc, unsigned int indent, + const char *target, bool declare) +{ + if (declare) + emit ("%*s%s %s;\n", indent * 2, "", STACK_TYPE, target); + + emit_header (out, loc, indent); + + switch (loc->type) + { + default: + abort (); + break; + + case loc_register: + emit_loc_register (out, loc, indent, target); + break; + + case loc_address: + if (loc->address.frame_base != NULL) + emit_loc_value (out, loc->address.frame_base, indent, + "frame_base", true); + emit_loc_address (out, loc, indent, target); + break; + } + + emit ("%*s}\n", indent * 2, ""); +} + +bool +c_emit_location (FILE *out, struct location *loc, int indent) +{ + emit ("%*s{\n", indent * 2, ""); + + bool deref = false; + for (bool declare_addr = true; loc->next != NULL; loc = loc->next) + switch (loc->type) + { + case loc_address: + /* Emit the program fragment to calculate the address. */ + emit_loc_value (out, loc, indent + 1, "addr", declare_addr); + declare_addr = false; + deref = deref || loc->address.used_deref; + break; + + case loc_register: + case loc_noncontiguous: + /* These don't produce any code directly. + The next address/final record incorporates the value. */ + break; + + case loc_final: /* Should be last in chain! */ + default: + abort (); + break; + } + + if (loc->type != loc_final) /* Unfinished chain. */ + abort (); + + emit ("%s%*s}\n", loc->address.program, indent * 2, ""); + + return deref; +} + +#undef emit diff --git a/libdwfl/loc2c.h b/libdwfl/loc2c.h new file mode 100644 index 0000000..15d8928 --- /dev/null +++ b/libdwfl/loc2c.h @@ -0,0 +1,63 @@ +#include + +struct obstack; /* Use */ +struct location; /* Opaque */ + + +/* Translate a C fragment for the location expression, using *INPUT + as the starting location, begin from scratch if *INPUT is null. + If DW_OP_fbreg is used, it may have a subfragment computing from + the FB_ATTR location expression. + + On errors, exit and never return (XXX ?). On success, return the + first fragment created, which is also chained onto (*INPUT)->next. + *INPUT is then updated with the new tail of that chain. + *USED_DEREF is set to true iff the "deref" runtime operation + was used, otherwise it is not modified. */ +struct location *c_translate_location (struct obstack *, int indent, + Dwarf_Addr bias, + Dwarf_Attribute *loc_attr, + Dwarf_Addr address, + struct location **input, + Dwarf_Attribute *fb_attr); + +/* Translate a fragment to dereference the given pointer type, + where *INPUT is the location of the pointer with that type. */ +void c_translate_pointer (struct obstack *pool, int indent, + Dwarf_Addr dwbias, Dwarf_Die *typedie, + struct location **input); + +/* Translate a fragment to index an array (turning the location + of the array into the location of an element). If IDX is non-null, + it's a string of C code to emit in the fragment as the array index. + If the index is a known constant, IDX should be null and CONST_IDX + is used instead (this case can handle local arrays in registers). */ +void c_translate_array (struct obstack *pool, int indent, + Dwarf_Addr dwbias, Dwarf_Die *typedie, + struct location **input, + const char *idx, Dwarf_Word const_idx); + +/* Translate a fragment to compute the address of the input location + and assign it to the variable TARGET. This doesn't really do anything + (it always emits "TARGET = addr;"), but it will barf if the location + is a register or noncontiguous object. */ +void c_translate_addressof (struct obstack *pool, int indent, + Dwarf_Addr dwbias, Dwarf_Die *die, + Dwarf_Attribute *typeattr, + struct location **input, const char *target); + +/* Translate a fragment to fetch the value of variable or member DIE + at the *INPUT location and store it in variable TARGET. + This handles base integer types and bit fields. */ +void c_translate_fetch (struct obstack *pool, int indent, + Dwarf_Addr dwbias __attribute__ ((unused)), + Dwarf_Die *die, Dwarf_Attribute *typeattr, + struct location **input, const char *target); + +/* Emit the C fragment built up at LOC (i.e., the return value from the + first c_translate_location call made). INDENT should match that + passed to c_translate_* previously. + + Writes complete lines of C99, code forming a complete C block, to STREAM. + Return value is true iff that code uses the `deref' runtime macros. */ +bool c_emit_location (FILE *stream, struct location *loc, int indent); diff --git a/libdwfl/ptest.c b/libdwfl/ptest.c new file mode 100644 index 0000000..948e971 --- /dev/null +++ b/libdwfl/ptest.c @@ -0,0 +1,117 @@ +/* Test program for libdwfl basic module tracking, relocation. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +static int +print_func (Dwarf_Func *func, void *arg) +{ + const Dwarf_Addr dwbias = *(Dwarf_Addr *) arg; + + const char *file = dwarf_func_file (func); + int line = -1; + dwarf_func_line (func, &line); + const char *fct = dwarf_func_name (func); + + printf (" %s:%d: %s:", file, line, fct); + + Dwarf_Addr lo = -1, hi = -1, entry = -1; + if (dwarf_func_lowpc (func, &lo) == 0) + lo += dwbias; + else + printf (" (lowpc => %s)", dwarf_errmsg (-1)); + if (dwarf_func_highpc (func, &hi) == 0) + hi += dwbias; + else + printf (" (highpc => %s)", dwarf_errmsg (-1)); + if (dwarf_func_entrypc (func, &entry) == 0) + entry += dwbias; + else + printf (" (entrypc => %s)", dwarf_errmsg (-1)); + + if (lo != (Dwarf_Addr) -1 || hi != (Dwarf_Addr) -1 + || entry != (Dwarf_Addr) -1) + printf (" %#" PRIx64 "..%#" PRIx64 " => %#" PRIx64 "\n", + lo, hi, entry); + else + puts (""); + + return DWARF_CB_OK; +} + +static int +print_module (Dwfl_Module *mod __attribute__ ((unused)), + void **userdata __attribute__ ((unused)), + const char *name, Dwarf_Addr base, + Dwarf *dw, Dwarf_Addr bias, + void *arg __attribute__ ((unused))) +{ + printf ("module: %30s %08" PRIx64 " %12p %" PRIx64 " (%s)\n", + name, base, dw, bias, dwfl_errmsg (-1)); + + if (dw != NULL) + { + Dwarf_Off off = 0; + size_t cuhl; + Dwarf_Off noff; + + while (dwarf_nextcu (dw, off, &noff, &cuhl, NULL, NULL, NULL) == 0) + { + Dwarf_Die die_mem; + Dwarf_Die *die = dwarf_offdie (dw, off + cuhl, &die_mem); + + (void) dwarf_getfuncs (die, print_func, &bias, 0); + + off = noff; + } + } + + return DWARF_CB_OK; +} + +int +main (int argc, char **argv) +{ + /* We use no threads here which can interfere with handling a stream. */ + (void) __fsetlocking (stdout, FSETLOCKING_BYCALLER); + + /* Set locale. */ + (void) setlocale (LC_ALL, ""); + + Dwfl *dwfl = NULL; + (void) argp_parse (dwfl_standard_argp (), argc, argv, 0, NULL, &dwfl); + assert (dwfl != NULL); + + ptrdiff_t p = 0; + do + p = dwfl_getdwarf (dwfl, &print_module, NULL, p); + while (p > 0); + if (p < 0) + error (2, 0, "dwfl_getdwarf: %s", dwfl_errmsg (-1)); + + dwfl_end (dwfl); + + return 0; +} diff --git a/libdwfl/relocate.c b/libdwfl/relocate.c new file mode 100644 index 0000000..41de6d1 --- /dev/null +++ b/libdwfl/relocate.c @@ -0,0 +1,293 @@ +/* Relocate debug information. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include "libdwflP.h" + +typedef uint8_t GElf_Byte; + +/* Adjust *VALUE to add the load address of the SHNDX section. + We update the section header in place to cache the result. */ + +Dwfl_Error +internal_function_def +__libdwfl_relocate_value (Dwfl_Module *mod, size_t symshstrndx, + Elf32_Word shndx, GElf_Addr *value) +{ + Elf_Scn *refscn = elf_getscn (mod->symfile->elf, shndx); + GElf_Shdr refshdr_mem, *refshdr = gelf_getshdr (refscn, &refshdr_mem); + if (refshdr == NULL) + return DWFL_E_LIBELF; + + if ((refshdr->sh_flags & SHF_ALLOC) && refshdr->sh_addr == 0) + { + /* This is a loaded section. Find its actual + address and update the section header. */ + const char *name = elf_strptr (mod->symfile->elf, symshstrndx, + refshdr->sh_name); + if (name == NULL) + return DWFL_E_LIBELF; + + if ((*mod->dwfl->callbacks->section_address) (MODCB_ARGS (mod), name, + &refshdr->sh_addr)) + return CBFAIL; + + if (refshdr->sh_addr == 0) + /* The callback resolved this to zero, indicating it wasn't + really loaded but we don't really care. Mark it so we + don't check it again for the next relocation. */ + refshdr->sh_flags &= ~SHF_ALLOC; + + /* Update the in-core file's section header to show the final + load address (or unloadedness). This serves as a cache, + so we won't get here again for the same section. */ + if (! gelf_update_shdr (refscn, refshdr)) + return DWFL_E_LIBELF; + } + + /* Apply the adjustment. */ + *value += refshdr->sh_addr; + return DWFL_E_NOERROR; +} + +Dwfl_Error +internal_function_def +__libdwfl_relocate (Dwfl_Module *mod) +{ + assert (mod->isrel); + + GElf_Ehdr ehdr_mem; + const GElf_Ehdr *ehdr = gelf_getehdr (mod->debug.elf, &ehdr_mem); + if (ehdr == NULL) + return DWFL_E_LIBELF; + + size_t symshstrndx, d_shstrndx; + if (elf_getshstrndx (mod->symfile->elf, &symshstrndx) < 0) + return DWFL_E_LIBELF; + if (mod->symfile == &mod->debug) + d_shstrndx = symshstrndx; + else if (elf_getshstrndx (mod->debug.elf, &d_shstrndx) < 0) + return DWFL_E_LIBELF; + + /* Look at each section in the debuginfo file, and process the + relocation sections for debugging sections. */ + Dwfl_Error result = DWFL_E_NO_DWARF; + Elf_Scn *scn = NULL; + while ((scn = elf_nextscn (mod->debug.elf, scn)) != NULL) + { + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr->sh_type == SHT_REL || shdr->sh_type == SHT_RELA) + { + /* It's a relocation section. First, fetch the name of the + section these relocations apply to. */ + + Elf_Scn *tscn = elf_getscn (mod->debug.elf, shdr->sh_info); + if (tscn == NULL) + return DWFL_E_LIBELF; + + GElf_Shdr tshdr_mem; + GElf_Shdr *tshdr = gelf_getshdr (tscn, &tshdr_mem); + const char *tname = elf_strptr (mod->debug.elf, d_shstrndx, + tshdr->sh_name); + if (tname == NULL) + return DWFL_E_LIBELF; + + if (! ebl_debugscn_p (mod->ebl, tname)) + /* This relocation section is not for a debugging section. + Nothing to do here. */ + continue; + + /* Fetch the section data that needs the relocations applied. */ + Elf_Data *tdata = elf_rawdata (tscn, NULL); + if (tdata == NULL) + return DWFL_E_LIBELF; + + /* Apply one relocation. Returns true for any invalid data. */ + Dwfl_Error relocate (GElf_Addr offset, const GElf_Sxword *addend, + int rtype, int symndx) + { + /* First, resolve the symbol to an absolute value. */ + GElf_Addr value; + inline Dwfl_Error adjust (GElf_Word shndx) + { + return __libdwfl_relocate_value (mod, symshstrndx, + shndx, &value); + } + + if (symndx == STN_UNDEF) + /* When strip removes a section symbol referring to a + section moved into the debuginfo file, it replaces + that symbol index in relocs with STN_UNDEF. We + don't actually need the symbol, because those relocs + are always references relative to the nonallocated + debugging sections, which start at zero. */ + value = 0; + else + { + GElf_Sym sym_mem; + GElf_Word shndx; + GElf_Sym *sym = gelf_getsymshndx (mod->symdata, + mod->symxndxdata, + symndx, &sym_mem, + &shndx); + if (sym == NULL) + return DWFL_E_LIBELF; + + value = sym->st_value; + if (sym->st_shndx != SHN_XINDEX) + shndx = sym->st_shndx; + switch (shndx) + { + case SHN_ABS: + break; + + case SHN_UNDEF: + case SHN_COMMON: + return DWFL_E_RELUNDEF; + + default: + { + Dwfl_Error error = adjust (shndx); + if (error != DWFL_E_NOERROR) + return error; + break; + } + } + } + + /* These are the types we can relocate. */ +#define TYPES DO_TYPE (BYTE, Byte) DO_TYPE (HALF, Half) \ + DO_TYPE (WORD, Word) DO_TYPE (SWORD, Sword) \ + DO_TYPE (XWORD, Xword) DO_TYPE (SXWORD, Sxword) + size_t size; + Elf_Type type = ebl_reloc_simple_type (mod->ebl, rtype); + switch (type) + { +#define DO_TYPE(NAME, Name) \ + case ELF_T_##NAME: \ + size = sizeof (GElf_##Name); \ + break; + TYPES +#undef DO_TYPE + default: + return DWFL_E_BADRELTYPE; + } + + if (offset + size >= tdata->d_size) + return DWFL_E_BADRELOFF; + +#define DO_TYPE(NAME, Name) GElf_##Name Name; + union { TYPES } tmpbuf; +#undef DO_TYPE + Elf_Data tmpdata = + { + .d_type = type, + .d_buf = &tmpbuf, + .d_size = size, + .d_version = EV_CURRENT, + }; + Elf_Data rdata = + { + .d_type = type, + .d_buf = tdata->d_buf + offset, + .d_size = size, + .d_version = EV_CURRENT, + }; + + /* XXX check for overflow? */ + if (addend) + { + /* For the addend form, we have the value already. */ + value += *addend; + switch (type) + { +#define DO_TYPE(NAME, Name) \ + case ELF_T_##NAME: \ + tmpbuf.Name = value; \ + break; + TYPES +#undef DO_TYPE + default: + abort (); + } + } + else + { + /* Extract the original value and apply the reloc. */ + Elf_Data *d = gelf_xlatetom (mod->main.elf, &tmpdata, &rdata, + ehdr->e_ident[EI_DATA]); + if (d == NULL) + return DWFL_E_LIBELF; + assert (d == &tmpdata); + switch (type) + { +#define DO_TYPE(NAME, Name) \ + case ELF_T_##NAME: \ + tmpbuf.Name += (GElf_##Name) value; \ + break; + TYPES +#undef DO_TYPE + default: + abort (); + } + } + + /* Now convert the relocated datum back to the target + format. This will write into rdata.d_buf, which + points into the raw section data being relocated. */ + Elf_Data *s = gelf_xlatetof (mod->main.elf, &rdata, &tmpdata, + ehdr->e_ident[EI_DATA]); + if (s == NULL) + return DWFL_E_LIBELF; + assert (s == &rdata); + + /* We have applied this relocation! */ + return DWFL_E_NOERROR; + } + + /* Fetch the relocation section and apply each reloc in it. */ + Elf_Data *reldata = elf_getdata (scn, NULL); + if (reldata == NULL) + return DWFL_E_LIBELF; + + result = DWFL_E_NOERROR; + size_t nrels = shdr->sh_size / shdr->sh_entsize; + if (shdr->sh_type == SHT_REL) + for (size_t relidx = 0; !result && relidx < nrels; ++relidx) + { + GElf_Rel rel_mem, *r = gelf_getrel (reldata, relidx, &rel_mem); + if (r == NULL) + return DWFL_E_LIBELF; + result = relocate (r->r_offset, NULL, + GELF_R_TYPE (r->r_info), + GELF_R_SYM (r->r_info)); + } + else + for (size_t relidx = 0; !result && relidx < nrels; ++relidx) + { + GElf_Rela rela_mem, *r = gelf_getrela (reldata, relidx, + &rela_mem); + if (r == NULL) + return DWFL_E_LIBELF; + result = relocate (r->r_offset, &r->r_addend, + GELF_R_TYPE (r->r_info), + GELF_R_SYM (r->r_info)); + } + if (result != DWFL_E_NOERROR) + break; + } + } + + return result; +} diff --git a/libdwfl/test2.c b/libdwfl/test2.c new file mode 100644 index 0000000..4c1e7ad --- /dev/null +++ b/libdwfl/test2.c @@ -0,0 +1,268 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "../libdw/libdwP.h" +#include + +#include "loc2c.h" + +static const char * +dwarf_diename_integrate (Dwarf_Die *die) +{ + Dwarf_Attribute attr_mem; + return dwarf_formstring (dwarf_attr_integrate (die, DW_AT_name, &attr_mem)); +} + + + +static void +handle_variable (Dwarf_Die *scopes, int nscopes, int out, + Dwarf_Addr cubias, Dwarf_Die *vardie, Dwarf_Addr pc, + char **fields) +{ +#define obstack_chunk_alloc malloc +#define obstack_chunk_free free + struct obstack pool; + obstack_init (&pool); + + /* Figure out the appropriate frame base for accessing this variable. + XXX not handling nested functions + XXX inlines botched + */ + Dwarf_Attribute fb_attr_mem, *fb_attr = NULL; + for (int inner = 0; inner < nscopes; ++inner) + { + switch (dwarf_tag (&scopes[inner])) + { + default: + continue; + case DW_TAG_subprogram: + case DW_TAG_entry_point: + case DW_TAG_inlined_subroutine: /* XXX */ + if (inner >= out) + fb_attr = dwarf_attr_integrate (&scopes[inner], + DW_AT_frame_base, + &fb_attr_mem); + break; + } + break; + } + + Dwarf_Attribute attr_mem; + + if (dwarf_attr_integrate (vardie, DW_AT_location, &attr_mem) == NULL) + error (2, 0, _("cannot get location of variable: %s"), + dwarf_errmsg (-1)); + +#define FIELD "addr" +#define emit(fmt, ...) printf (" addr = " fmt "\n", ## __VA_ARGS__) + + struct location *head, *tail = NULL; + head = c_translate_location (&pool, 1, cubias, &attr_mem, pc, + &tail, fb_attr); + + if (dwarf_attr_integrate (vardie, DW_AT_type, &attr_mem) == NULL) + error (2, 0, _("cannot get type of variable: %s"), + dwarf_errmsg (-1)); + + Dwarf_Die die_mem, *die = vardie; + while (*fields != NULL) + { + die = dwarf_formref_die (&attr_mem, &die_mem); + + const int typetag = dwarf_tag (die); + switch (typetag) + { + case DW_TAG_typedef: + /* Just iterate on the referent type. */ + break; + + case DW_TAG_pointer_type: + if (**fields == '+') + goto subscript; + /* A "" field means explicit pointer dereference and we consume it. + Otherwise the next field implicitly gets the dereference. */ + if (**fields == '\0') + ++fields; + c_translate_pointer (&pool, 1, cubias, die, &tail); + break; + + case DW_TAG_array_type: + if (**fields == '+') + { + subscript:; + char *endp = *fields + 1; + uintmax_t idx = strtoumax (*fields + 1, &endp, 0); + if (endp == NULL || endp == *fields || *endp != '\0') + c_translate_array (&pool, 1, cubias, die, &tail, + *fields + 1, 0); + else + c_translate_array (&pool, 1, cubias, die, &tail, + NULL, idx); + ++fields; + } + else + error (2, 0, _("bad field for array type: %s"), *fields); + break; + + case DW_TAG_structure_type: + case DW_TAG_union_type: + switch (dwarf_child (die, &die_mem)) + { + case 1: /* No children. */ + error (2, 0, _("empty struct %s"), + dwarf_diename_integrate (die) ?: ""); + break; + case -1: /* Error. */ + default: /* Shouldn't happen */ + error (2, 0, _("%s %s: %s"), + typetag == DW_TAG_union_type ? "union" : "struct", + dwarf_diename_integrate (die) ?: "", + dwarf_errmsg (-1)); + break; + + case 0: + break; + } + while (dwarf_tag (die) != DW_TAG_member + || ({ const char *member = dwarf_diename_integrate (die); + member == NULL || strcmp (member, *fields); })) + if (dwarf_siblingof (die, &die_mem) != 0) + error (2, 0, _("field name %s not found"), *fields); + + if (dwarf_attr_integrate (die, DW_AT_data_member_location, + &attr_mem) == NULL) + { + /* Union members don't usually have a location, + but just use the containing union's location. */ + if (typetag != DW_TAG_union_type) + error (2, 0, _("no location for field %s: %s"), + *fields, dwarf_errmsg (-1)); + } + else + c_translate_location (&pool, 1, cubias, &attr_mem, pc, + &tail, NULL); + ++fields; + break; + + case DW_TAG_base_type: + error (2, 0, _("field %s vs base type %s"), + *fields, dwarf_diename_integrate (die) ?: ""); + break; + + case -1: + error (2, 0, _("cannot find type: %s"), dwarf_errmsg (-1)); + break; + + default: + error (2, 0, _("%s: unexpected type tag %#x"), + dwarf_diename_integrate (die) ?: "", + dwarf_tag (die)); + break; + } + + /* Now iterate on the type in DIE's attribute. */ + if (dwarf_attr_integrate (die, DW_AT_type, &attr_mem) == NULL) + error (2, 0, _("cannot get type of field: %s"), dwarf_errmsg (-1)); + } + + c_translate_fetch (&pool, 1, cubias, die, &attr_mem, &tail, "value"); + + printf ("#define PROBEADDR %#" PRIx64 "ULL\n", pc); + puts ("static void print_value(struct pt_regs *regs)\n" + "{\n" + " intptr_t value;"); + + bool deref = c_emit_location (stdout, head, 1); + + puts (" printk (\" ---> %ld\\n\", (unsigned long) value);\n" + " return;"); + + if (deref) + puts ("\n" + " deref_fault:\n" + " printk (\" => BAD FETCH\\n\");"); + + puts ("}"); +} + +int +main (int argc, char **argv) +{ + /* We use no threads here which can interfere with handling a stream. */ + (void) __fsetlocking (stdout, FSETLOCKING_BYCALLER); + + /* Set locale. */ + (void) setlocale (LC_ALL, ""); + + Dwfl *dwfl = NULL; + int argi; + (void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &argi, &dwfl); + assert (dwfl != NULL); + + if (argi == argc) + error (2, 0, "need address argument"); + + char *endp; + uintmax_t pc = strtoumax (argv[argi], &endp, 0); + if (endp == argv[argi]) + error (2, 0, "bad address argument"); + + Dwarf_Addr cubias; + Dwarf_Die *cudie = dwfl_addrdie (dwfl, pc, &cubias); + if (cudie == NULL) + error (EXIT_FAILURE, 0, "dwfl_addrdie: %s", dwfl_errmsg (-1)); + + Dwarf_Die *scopes; + int n = dwarf_getscopes (cudie, pc - cubias, &scopes); + if (n < 0) + error (EXIT_FAILURE, 0, "dwarf_getscopes: %s", dwarf_errmsg (-1)); + else if (n == 0) + error (EXIT_FAILURE, 0, "%#" PRIx64 ": not in any scope\n", pc); + + if (++argi == argc) + error (2, 0, "need variable arguments"); + + char *spec = argv[argi++]; + + int lineno = 0, colno = 0, shadow = 0; + char *at = strchr (spec, '@'); + if (at != NULL) + { + *at++ = '\0'; + if (sscanf (at, "%*[^:]:%i:%i", &lineno, &colno) < 1) + lineno = 0; + } + else + { + int len; + if (sscanf (spec, "%*[^+]%n+%i", &len, &shadow) == 2) + spec[len] = '\0'; + } + + Dwarf_Die vardie; + int out = dwarf_getscopevar (scopes, n, spec, shadow, at, lineno, colno, + &vardie); + if (out == -2) + error (0, 0, "no match for %s (+%d, %s:%d:%d)", + spec, shadow, at, lineno, colno); + else if (out < 0) + error (0, 0, "dwarf_getscopevar: %s (+%d, %s:%d:%d): %s", + spec, shadow, at, lineno, colno, dwarf_errmsg (-1)); + else + handle_variable (scopes, n, out, cubias, &vardie, pc, &argv[argi]); + + dwfl_end (dwfl); + + return 0; +} diff --git a/libebl/.cvsignore b/libebl/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/libebl/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/libebl/ChangeLog b/libebl/ChangeLog new file mode 100644 index 0000000..a14572c --- /dev/null +++ b/libebl/ChangeLog @@ -0,0 +1,281 @@ +2005-07-23 Ulrich Drepper + + * eblsectionstripp.c: New file. + * Makefile.am (gen_SOURCES): Add eblsectionstripp.c. + * i386_init.c (i386_init): Install specific debugscn_p callback. + * i386_symbol.c (i386_debugscn_p): New function. + * libebl.h: Declare ebl_section_strip_p. + * libebl_i386.h: Declare i386_debugscn_p. + + * libebl.h: Move Ebl definition to... + * libeblP.h: ...here. + +2005-07-21 Roland McGrath + + * Makefile.am (install-ebl-modules): New target, commands from ... + (install): ... here. Make this depend on it. + (LIBEBL_SUBDIR): New variable, substituted by configure. + (install-ebl-modules): Install in $(libdir)/$(LIBEBL_SUBDIR). + * eblopenbackend.c (openbackend): Use LIBEBL_SUBDIR in module name. + +2005-07-21 Ulrich Drepper + + * eblcopyrelocp.c: New file. + * Makefile.am (gen_SOURCES): Add eblcopyrelocp.c. + * libebl.h: Declare ebl_copy_reloc_p. + * eblopenbackend.c (fill_defaults): Fill in copy_reloc_p. + (default_copy_reloc_p): New function. + * alpha_init.c: Define and use arch-specific copy_reloc_p function. + * alpha_symbol.c: Likewise. + * arm_init.c: Likewise. + * arm_symbol.c: Likewise. + * i386_init.c: Likewise. + * i386_symbol.c: Likewise. + * ia64_init.c: Likewise. + * ia64_symbol.c: Likewise. + * ppc64_init.c: Likewise. + * ppc64_symbol.c: Likewise. + * ppc_init.c: Likewise. + * ppc_symbol.c: Likewise. + * sh_init.c: Likewise. + * sh_symbol.c: Likewise. + * sparc_init.c: Likewise. + * sparc_symbol.c: Likewise. + * x86_64_init.c: Likewise. + * x86_64_symbol.c: Likewise. + * libebl_alpha.h: Declare the copy_reloc_p function. + * libebl_arm.h: Likewise. + * libebl_i386.h: Likewise. + * libebl_ia64.h: Likewise. + * libebl_ppc.h: Likewise. + * libebl_ppc64.h: Likewise. + * libebl_sh.h: Likewise. + * libebl_sparc.h: Likewise. + * libebl_x86_64.h: Likewise. + +2005-05-31 Roland McGrath + + * Makefile.am (libebl_*_so_SOURCES): Set to $(*_SRCS) so dependency + tracking works right. + +2005-05-21 Ulrich Drepper + + * libebl_x86_64.map: Add x86_64_core_note. + +2005-05-19 Roland McGrath + + * libebl_i386.map: Add i386_reloc_valid_use, i386_reloc_simple_type. + * libebl_ppc.map: Add ppc_reloc_simple_type. + * libebl_ppc64.map: Add ppc64_reloc_simple_type. + * libebl_x86_64.map: Add x86_64_reloc_simple_type. + +2005-05-11 Ulrich Drepper + + * eblcorenote.c: Handle new AT_* values and files with different + endianess. + * Makefile.am (x86_64_SRCS): Add x86_64_corenote.c. + * x86-64_corenote.c: New file. + * x86_64_init.c: Hook in x86_64_corenote. + * i386_corenote.c: Make file usable on 64-bit platforms. + + * eblopenbackend.c: If modules version comparison fails, reinitialize + hooks. + +2005-05-10 Ulrich Drepper + + * eblopenbackend.c: Require the init function to return a string. + Compare it with MODVERSION from config.h. + * alpha_init.c: Change return type. Return MODVERSION or NULL. + * arm_init.c: Likewise. + * eblopenbackend.c: Likewise. + * i386_init.c: Likewise. + * ia64_init.c: Likewise. + * ppc64_init.c: Likewise. + * ppc_init.c: Likewise. + * sh_init.c: Likewise. + * sparc_init.c: Likewise. + * x86_64_init.c: Likewise. + * libeblP.h: Adjust ebl_bhinit_t. + * libebl_alpha.h: Adjust init function prototype. + * libebl_arm.h: Likewise. + * libebl_i386.h: Likewise. + * libebl_ia64.h: Likewise. + * libebl_ppc.h: Likewise. + * libebl_ppc64.h: Likewise. + * libebl_sh.h: Likewise. + * libebl_sparc.h: Likewise. + * libebl_x86_64.h: Likewise. + + * mips_destr.c: Removed. + * mips_init.c: Removed. + * mips_symbol.c: Removed. + * libebl_mips.h: Removed. + * libebl_mips.map: Removed. + +2005-05-03 Roland McGrath + + * libebl.h (Ebl): Add `reloc_simple_type' member. + * eblopenbackend.c (default_reloc_simple_type): New function. + (openbackend): Use that as default reloc_simple_type callback. + * eblrelocsimpletype.c: New file. + * Makefile.am (gen_SOURCES): Add it. + * i386_symbol.c (i386_reloc_simple_type): New function. + * libebl_i386.h: Declare it. + * i386_init.c (i386_init): Use it. + * x86_64_symbol.c (x86_64_reloc_simple_type): New function. + * libebl_x86_64.h: Declare it. + * x86_64_init.c (x86_64_init): Use it. + * ppc_symbol.c (ppc_reloc_simple_type): New function. + * libebl_ppc.h: Declare it. + * ppc_init.c (ppc_init): Use it. + * ppc64_symbol.c (ppc64_reloc_simple_type): New function. + * libebl_ppc64.h: Declare it. + * ppc64_init.c (ppc64_init): Use it. + +2005-03-17 Ulrich Drepper + + * eblcorenote.c (ebl_core_note): Add support for AT_SECURE. + +2005-02-15 Ulrich Drepper + + * Makefile.am (AM_CFLAGS): Add -Wformat=2. + +2005-02-14 Ulrich Drepper + + * alpha_destr.c: Add __attribute__((unused)) where needed. + * alpha_init.c: Likewise. + * alpha_symbol.c: Likewise. + * arm_destr.c: Likewise. + * arm_init.c: Likewise. + * arm_symbol.c: Likewise. + * i386_corenote.c: Likewise. + * i386_destr.c: Likewise. + * i386_init.c: Likewise. + * i386_symbol.c: Likewise. + * ia64_destr.c: Likewise. + * ia64_init.c: Likewise. + * ia64_symbol.c: Likewise. + * mips_destr.c: Likewise. + * mips_init.c: Likewise. + * mips_symbol.c: Likewise. + * ppc64_destr.c: Likewise. + * ppc64_init.c: Likewise. + * ppc64_symbol.c: Likewise. + * ppc_destr.c: Likewise. + * ppc_init.c: Likewise. + * ppc_symbol.c: Likewise. + * sh_destr.c: Likewise. + * sh_init.c: Likewise. + * sh_symbol.c: Likewise. + * sparc_destr.c: Likewise. + * sparc_init.c: Likewise. + * sparc_symbol.c: Likewise. + * x86_64_destr.c: Likewise. + * x86_64_init.c: Likewise. + * x86_64_symbol.c: Likewise. + + * x86_64_symbol.c (reloc_map_table): Fix entries for R_X86_64_64 + and R_X86_64_32.. + +2005-02-06 Ulrich Drepper + + * eblstrtab.c: A few cleanups. + + * eblopenbackend.c: Mark unused parameters. + + * eblgstrtab.c: Cleanups a few printf format strings. + + * Makefile.am: Cleanup AM_CFLAGS handling. Add -Wunused -Wextra. + +2005-02-05 Ulrich Drepper + + * Makefile.am: Check for text relocations in constructed DSOs. + + * eblstrtab.c: Minor cleanups. + + * Makefile.am (AM_CFLAGS): Add -std=gnu99 and -fmudflap for MUDFLAP. + +2004-08-16 Ulrich Drepper + + * Makefile.am (AM_CFLAGS): Add LIBSTR definition with base name of + the lib directory. + * eblopenbackend.c (openbackend): Use LIBSTR instead of hardcoded + lib in path to ebl modules. + +2004-04-01 Ulrich Drepper + + * Makefile.am: Add rules for ppc and ppc64 ebl module. + * ppc_init..c: New file. + * ppc_destr.c: New file. + * ppc_symbol.c: New file. + * libebl_ppc.h: New file. + * libebl_ppc.map: New file. + * ppc64_init..c: New file. + * ppc64_destr.c: New file. + * ppc64_symbol.c: New file. + * libebl_ppc64.h: New file. + * libebl_ppc64.map: New file. + +2004-01-20 Ulrich Drepper + + * Makefile.am: Support building with mudflap. + +2004-01-18 Ulrich Drepper + + * libeblP.h (_): Use elfutils domain. + +2004-01-16 Ulrich Drepper + + * eblsectionname.c: Add support for SHN_BEFORE and SHN_AFTER. + +2004-01-13 Ulrich Drepper + + * eblsegmenttypename.c ((ebl_segment_type_name): Add support for + PT_GNU_RELRO. + +2004-01-08 Ulrich Drepper + + * libebl.h: Remove last traces of libtool. + +2004-01-05 Ulrich Drepper + + * elf-knowledge.h: Move to libelf subdir. + + * Makefile.am (EXTRA_DIST): Remove libebl.map. + * libebl.map: Removed. + +2003-12-08 Ulrich Drepper + + * eblsectiontypename.c (ebl_section_type_name): Add support for + SHT_SUNW_move, SHT_CHECKSUM, and SHT_GNU_LIBLIST. + +2003-11-19 Ulrich Drepper + + * ia64_symbol.c (ia64_dynamic_tag_name): New function. + * libebl_ia64.h (ia64_dynamic_tag_name): Declare. + * ia64_init.c (ia64_init): Register i164_dynamic_tag_name. + +2003-09-24 Ulrich Drepper + + * ia64_init.c (ia64_init): Initialize segment_type_name callback. + * ia64_symbol.c (ia64_segment_type_name): Define. + * libebl_ia64.h (ia64_segment_type_name): Declare. + +2003-09-22 Ulrich Drepper + + * Makefile.am (AM_CFLAGS): Add -fpic. + +2003-08-14 Ulrich Drepper + + * Makefile.am (install): Remove dependency on libebl.so. + +2003-08-13 Ulrich Drepper + + * eblopenbackend.c: Adjust relative path to arch-specific DSOs + assuming the code ends up in the application. Add second dlopen() + try without any path, just the filename. + * Makefile.in: Remove rules to build and install libebl.so. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/libebl/Makefile.am b/libebl/Makefile.am new file mode 100644 index 0000000..5f7be50 --- /dev/null +++ b/libebl/Makefile.am @@ -0,0 +1,201 @@ +## Process this file with automake to create Makefile.in +## +## Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. +## +## This program is Open Source software; you can redistribute it and/or +## modify it under the terms of the Open Software License version 1.0 as +## published by the Open Source Initiative. +## +## You should have received a copy of the Open Software License along +## with this program; if not, you may obtain a copy of the Open Software +## License version 1.0 from http://www.opensource.org/licenses/osl.php or +## by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +## 3001 King Ranch Road, Ukiah, CA 95482. +## +DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -DOBJDIR=\"$(shell pwd)\" +if MUDFLAP +AM_CFLAGS = -fmudflap +else +AM_CFLAGS = +endif +AM_CFLAGS += -fpic -Wall -Wshadow -Werror -Wunused -Wextra -Wformat=2 \ + -std=gnu99 + +INCLUDES = -I$(srcdir) -I$(top_srcdir)/libelf -I$(top_srcdir)/lib -I.. +VERSION = 1 +PACKAGE_VERSION = @PACKAGE_VERSION@ +LIBEBL_SUBDIR = @LIBEBL_SUBDIR@ + +lib_LIBRARIES = libebl.a +modules = i386 sh x86_64 ia64 alpha arm sparc ppc ppc64 +noinst_LIBRARIES = libebl_i386_pic.a libebl_sh_pic.a \ + libebl_x86_64_pic.a libebl_ia64_pic.a libebl_alpha_pic.a \ + libebl_arm_pic.a libebl_sparc_pic.a libebl_ppc_pic.a \ + libebl_ppc64_pic.a +noinst_PROGRAMS = $(noinst_LIBRARIES:_pic.a=.so) + +euincludedir = $(includedir)/elfutils +euinclude_HEADERS = libebl.h + +gen_SOURCES = eblopenbackend.c eblclosebackend.c eblstrtab.c \ + eblreloctypename.c eblsegmenttypename.c \ + eblsectiontypename.c eblmachineflagname.c \ + eblsymboltypename.c ebldynamictagname.c eblsectionname.c \ + eblobjecttypename.c eblsymbolbindingname.c \ + eblbackendname.c eblshflagscombine.c eblwstrtab.c \ + eblgstrtab.c eblosabiname.c eblmachineflagcheck.c \ + eblreloctypecheck.c eblrelocvaliduse.c eblrelocsimpletype.c \ + ebldynamictagcheck.c eblcorenotetypename.c eblobjnotetypename.c \ + eblcorenote.c eblobjnote.c ebldebugscnp.c \ + eblgotpcreloccheck.c eblcopyrelocp.c eblsectionstripp.c + +libebl_a_SOURCES = $(gen_SOURCES) + +i386_SRCS = i386_init.c i386_destr.c i386_symbol.c i386_corenote.c +libebl_i386_pic_a_SOURCES = $(i386_SRCS) +am_libebl_i386_pic_a_OBJECTS = $(i386_SRCS:.c=.os) + +if MUDFLAP +libelf = ../libelf/libelf.a +libmudflap = -lmudflap +else +libelf = ../libelf/libelf.so +libmudflap = +endif + +textrel_check = if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi + +libebl_i386_so_SOURCES = +libebl_i386.so: libebl_i386_pic.a libebl_i386.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libebl_i386.map \ + -Wl,-z,defs $(libelf) $(libmudflap) + $(textrel_check) + + +sh_SRCS = sh_init.c sh_destr.c sh_symbol.c +libebl_sh_pic_a_SOURCES = $(sh_SRCS) +am_libebl_sh_pic_a_OBJECTS = $(sh_SRCS:.c=.os) + +libebl_sh_so_SOURCES = +libebl_sh.so: libebl_sh_pic.a libebl_sh.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libebl_sh.map \ + -Wl,-z,defs $(libmudflap) + $(textrel_check) + + +x86_64_SRCS = x86_64_init.c x86_64_destr.c x86_64_symbol.c x86_64_corenote.c +libebl_x86_64_pic_a_SOURCES = $(x86_64_SRCS) +am_libebl_x86_64_pic_a_OBJECTS = $(x86_64_SRCS:.c=.os) + +libebl_x86_64_so_SOURCES = +libebl_x86_64.so: libebl_x86_64_pic.a libebl_x86_64.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libebl_x86_64.map \ + -Wl,-z,defs $(libelf) $(libmudflap) + $(textrel_check) + + +ia64_SRCS = ia64_init.c ia64_destr.c ia64_symbol.c +libebl_ia64_pic_a_SOURCES = $(ia64_SRCS) +am_libebl_ia64_pic_a_OBJECTS = $(ia64_SRCS:.c=.os) + +libebl_ia64_so_SOURCES = +libebl_ia64.so: libebl_ia64_pic.a libebl_ia64.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libebl_ia64.map \ + -Wl,-z,defs $(libmudflap) + $(textrel_check) + + +alpha_SRCS = alpha_init.c alpha_destr.c alpha_symbol.c +libebl_alpha_pic_a_SOURCES = $(alpha_SRCS) +am_libebl_alpha_pic_a_OBJECTS = $(alpha_SRCS:.c=.os) + +libebl_alpha_so_SOURCES = +libebl_alpha.so: libebl_alpha_pic.a libebl_alpha.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libebl_alpha.map \ + -Wl,-z,defs $(libmudflap) + $(textrel_check) + + +arm_SRCS = arm_init.c arm_destr.c arm_symbol.c +libebl_arm_pic_a_SOURCES = $(arm_SRCS) +am_libebl_arm_pic_a_OBJECTS = $(arm_SRCS:.c=.os) + +libebl_arm_so_SOURCES = +libebl_arm.so: libebl_arm_pic.a libebl_arm.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libebl_arm.map \ + -Wl,-z,defs $(libmudflap) + $(textrel_check) + + +sparc_SRCS = sparc_init.c sparc_destr.c sparc_symbol.c +libebl_sparc_pic_a_SOURCES = $(sparc_SRCS) +am_libebl_sparc_pic_a_OBJECTS = $(sparc_SRCS:.c=.os) + +libebl_sparc_so_SOURCES = +libebl_sparc.so: libebl_sparc_pic.a libebl_sparc.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libebl_sparc.map \ + -Wl,-z,defs $(libmudflap) + $(textrel_check) + + +ppc_SRCS = ppc_init.c ppc_destr.c ppc_symbol.c +libebl_ppc_pic_a_SOURCES = $(ppc_SRCS) +am_libebl_ppc_pic_a_OBJECTS = $(ppc_SRCS:.c=.os) + +libebl_ppc_so_SOURCES = +libebl_ppc.so: libebl_ppc_pic.a libebl_ppc.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libebl_ppc.map \ + -Wl,-z,defs $(libelf) $(libmudflap) + $(textrel_check) + + +ppc64_SRCS = ppc64_init.c ppc64_destr.c ppc64_symbol.c +libebl_ppc64_pic_a_SOURCES = $(ppc64_SRCS) +am_libebl_ppc64_pic_a_OBJECTS = $(ppc64_SRCS:.c=.os) + +libebl_ppc64_so_SOURCES = +libebl_ppc64.so: libebl_ppc64_pic.a libebl_ppc64.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libebl_ppc64.map \ + -Wl,-z,defs $(libelf) $(libmudflap) + $(textrel_check) + + +%.os: %.c %.o + if $(COMPILE) -c -o $@ -fpic -DPIC -DSHARED -MT $@ -MD -MP \ + -MF "$(DEPDIR)/$*.Tpo" `test -f '$<' || echo '$(srcdir)/'`$<; \ + then cat "$(DEPDIR)/$*.Tpo" >> "$(DEPDIR)/$*.Po"; \ + rm -f "$(DEPDIR)/$*.Tpo"; \ + else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \ + fi + +install: install-am install-ebl-modules +install-ebl-modules: + $(mkinstalldirs) $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR) + for m in $(modules); do \ + $(INSTALL_PROGRAM) libebl_$${m}.so $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR)/libebl_$${m}-$(PACKAGE_VERSION).so; \ + ln -fs libebl_$${m}-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR)/libebl_$${m}.so; \ + done + +uninstall: uninstall-am + for m in $(modules); do \ + rm -f $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR)/libebl_$${m}-$(PACKAGE_VERSION).so; \ + rm -f $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR)/libebl_$${m}.so; \ + done + rmdir --ignore-fail-on-non-empty $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR) + rmdir --ignore-fail-on-non-empty $(DESTDIR)$(includedir)/elfutils + +noinst_HEADERS = libeblP.h $(noinst_LIBRARIES:%_pic.a=%.h) +EXTRA_DIST = $(noinst_LIBRARIES:%_pic.a=%.map) \ + $(foreach m,$(modules),$($(m)_SRCS)) + +CLEANFILES = $(am_libebl_pic_a_OBJECTS) \ + $(foreach m,$(modules),$(am_libebl_$(m)_pic_a_OBJECTS)) diff --git a/libebl/alpha_destr.c b/libebl/alpha_destr.c new file mode 100644 index 0000000..4fc5cf8 --- /dev/null +++ b/libebl/alpha_destr.c @@ -0,0 +1,27 @@ +/* Destructor for Alpha specific backend library. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +void +alpha_destr (bh) + Ebl *bh __attribute__ ((unused)); +{ + /* Nothing to do so far. */ +} diff --git a/libebl/alpha_init.c b/libebl/alpha_init.c new file mode 100644 index 0000000..17eff37 --- /dev/null +++ b/libebl/alpha_init.c @@ -0,0 +1,41 @@ +/* Initialization of Alpha specific backend library. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +const char * +alpha_init (elf, machine, eh, ehlen) + Elf *elf __attribute__ ((unused)); + GElf_Half machine __attribute__ ((unused)); + Ebl *eh; + size_t ehlen; +{ + /* Check whether the Elf_BH object has a sufficent size. */ + if (ehlen < sizeof (Ebl)) + return NULL; + + /* We handle it. */ + eh->name = "Alpha"; + eh->reloc_type_name = alpha_reloc_type_name; + eh->reloc_type_check = alpha_reloc_type_check; + eh->copy_reloc_p = alpha_copy_reloc_p; + eh->destr = alpha_destr; + + return MODVERSION; +} diff --git a/libebl/alpha_symbol.c b/libebl/alpha_symbol.c new file mode 100644 index 0000000..49e7c72 --- /dev/null +++ b/libebl/alpha_symbol.c @@ -0,0 +1,101 @@ +/* Alpha specific symbolic name handling. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +/* Return of the backend. */ +const char * +alpha_backend_name (void) +{ + return "alpha"; +} + + +/* Relocation mapping table. */ +static const char *reloc_map_table[] = + { + [R_ALPHA_NONE] = "R_ALPHA_NONE", + [R_ALPHA_REFLONG] = "R_ALPHA_REFLONG", + [R_ALPHA_REFQUAD] = "R_ALPHA_REFQUAD", + [R_ALPHA_GPREL32] = "R_ALPHA_GPREL32", + [R_ALPHA_LITERAL] = "R_ALPHA_LITERAL", + [R_ALPHA_LITUSE] = "R_ALPHA_LITUSE", + [R_ALPHA_GPDISP] = "R_ALPHA_GPDISP", + [R_ALPHA_BRADDR] = "R_ALPHA_BRADDR", + [R_ALPHA_HINT] = "R_ALPHA_HINT", + [R_ALPHA_SREL16] = "R_ALPHA_SREL16", + [R_ALPHA_SREL32] = "R_ALPHA_SREL32", + [R_ALPHA_SREL64] = "R_ALPHA_SREL64", + [R_ALPHA_GPRELHIGH] = "R_ALPHA_GPRELHIGH", + [R_ALPHA_GPRELLOW] = "R_ALPHA_GPRELLOW", + [R_ALPHA_GPREL16] = "R_ALPHA_GPREL16", + [R_ALPHA_COPY] = "R_ALPHA_COPY", + [R_ALPHA_GLOB_DAT] = "R_ALPHA_GLOB_DAT", + [R_ALPHA_JMP_SLOT] = "R_ALPHA_JMP_SLOT", + [R_ALPHA_RELATIVE] = "R_ALPHA_RELATIVE", + [R_ALPHA_TLS_GD_HI] = "R_ALPHA_TLS_GD_HI", + [R_ALPHA_TLSGD] = "R_ALPHA_TLSGD", + [R_ALPHA_TLS_LDM] = "R_ALPHA_TLS_LDM", + [R_ALPHA_DTPMOD64] = "R_ALPHA_DTPMOD64", + [R_ALPHA_GOTDTPREL] = "R_ALPHA_GOTDTPREL", + [R_ALPHA_DTPREL64] = "R_ALPHA_DTPREL64", + [R_ALPHA_DTPRELHI] = "R_ALPHA_DTPRELHI", + [R_ALPHA_DTPRELLO] = "R_ALPHA_DTPRELLO", + [R_ALPHA_DTPREL16] = "R_ALPHA_DTPREL16", + [R_ALPHA_GOTTPREL] = "R_ALPHA_GOTTPREL", + [R_ALPHA_TPREL64] = "R_ALPHA_TPREL64", + [R_ALPHA_TPRELHI] = "R_ALPHA_TPRELHI", + [R_ALPHA_TPRELLO] = "R_ALPHA_TPRELLO", + [R_ALPHA_TPREL16] = "R_ALPHA_TPREL16" + }; + + +/* Determine relocation type string for Alpha. */ +const char * +alpha_reloc_type_name (int type, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + if (type < 0 + || ((size_t) type + >= sizeof (reloc_map_table) / sizeof (reloc_map_table[0]))) + return NULL; + + return reloc_map_table[type]; +} + + +/* Check for correct relocation type. */ +bool +alpha_reloc_type_check (int type) +{ + return (type >= R_ALPHA_NONE + && ((size_t) type + < sizeof (reloc_map_table) / sizeof (reloc_map_table[0])) + && reloc_map_table[type] != NULL) ? true : false; +} + +/* Check whether given relocation is a copy relocation. */ +bool +alpha_copy_reloc_p (int reloc) +{ + return reloc == R_ALPHA_COPY; +} diff --git a/libebl/arm_destr.c b/libebl/arm_destr.c new file mode 100644 index 0000000..2675720 --- /dev/null +++ b/libebl/arm_destr.c @@ -0,0 +1,27 @@ +/* Destructor for Arm specific backend library. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +void +arm_destr (bh) + Ebl *bh __attribute__ ((unused)); +{ + /* Nothing to do so far. */ +} diff --git a/libebl/arm_init.c b/libebl/arm_init.c new file mode 100644 index 0000000..a0a65f8 --- /dev/null +++ b/libebl/arm_init.c @@ -0,0 +1,41 @@ +/* Initialization of Arm specific backend library. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +const char * +arm_init (elf, machine, eh, ehlen) + Elf *elf __attribute__ ((unused)); + GElf_Half machine __attribute__ ((unused)); + Ebl *eh; + size_t ehlen; +{ + /* Check whether the Elf_BH object has a sufficent size. */ + if (ehlen < sizeof (Ebl)) + return NULL; + + /* We handle it. */ + eh->name = "Arm"; + eh->reloc_type_name = arm_reloc_type_name; + eh->reloc_type_check = arm_reloc_type_check; + eh->copy_reloc_p = arm_copy_reloc_p; + eh->destr = arm_destr; + + return MODVERSION; +} diff --git a/libebl/arm_symbol.c b/libebl/arm_symbol.c new file mode 100644 index 0000000..f4de8be --- /dev/null +++ b/libebl/arm_symbol.c @@ -0,0 +1,121 @@ +/* Arm specific symbolic name handling. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +/* Return of the backend. */ +const char * +arm_backend_name (void) +{ + return "arm"; +} + + +/* Relocation mapping table. */ +static const char *reloc_map_table[] = + { + [R_ARM_NONE] = "R_ARM_NONE", + [R_ARM_PC24] = "R_ARM_PC24", + [R_ARM_ABS32] = "R_ARM_ABS32", + [R_ARM_REL32] = "R_ARM_REL32", + [R_ARM_PC13] = "R_ARM_PC13", + [R_ARM_ABS16] = "R_ARM_ABS16", + [R_ARM_ABS12] = "R_ARM_ABS12", + [R_ARM_THM_ABS5] = "R_ARM_THM_ABS5", + [R_ARM_ABS8] = "R_ARM_ABS8", + [R_ARM_SBREL32] = "R_ARM_SBREL32", + [R_ARM_THM_PC22] = "R_ARM_THM_PC22", + [R_ARM_THM_PC8] = "R_ARM_THM_PC8", + [R_ARM_AMP_VCALL9] = "R_ARM_AMP_VCALL9", + [R_ARM_SWI24] = "R_ARM_SWI24", + [R_ARM_THM_SWI8] = "R_ARM_THM_SWI8", + [R_ARM_XPC25] = "R_ARM_XPC25", + [R_ARM_THM_XPC22] = "R_ARM_THM_XPC22", + [R_ARM_COPY] = "R_ARM_COPY", + [R_ARM_GLOB_DAT] = "R_ARM_GLOB_DAT", + [R_ARM_JUMP_SLOT] = "R_ARM_JUMP_SLOT", + [R_ARM_RELATIVE] = "R_ARM_RELATIVE", + [R_ARM_GOTOFF] = "R_ARM_GOTOFF", + [R_ARM_GOTPC] = "R_ARM_GOTPC", + [R_ARM_GOT32] = "R_ARM_GOT32", + [R_ARM_PLT32] = "R_ARM_PLT32", + [R_ARM_ALU_PCREL_7_0] = "R_ARM_ALU_PCREL_7_0", + [R_ARM_ALU_PCREL_15_8] = "R_ARM_ALU_PCREL_15_8", + [R_ARM_ALU_PCREL_23_15] = "R_ARM_ALU_PCREL_23_15", + [R_ARM_LDR_SBREL_11_0] = "R_ARM_LDR_SBREL_11_0", + [R_ARM_ALU_SBREL_19_12] = "R_ARM_ALU_SBREL_19_12", + [R_ARM_ALU_SBREL_27_20] = "R_ARM_ALU_SBREL_27_20" + }; + +static const char *reloc_map_table2[] = + { + [R_ARM_GNU_VTENTRY] = "R_ARM_GNU_VTENTRY", + [R_ARM_GNU_VTINHERIT] = "R_ARM_GNU_VTINHERIT", + [R_ARM_THM_PC11] = "R_ARM_THM_PC11", + [R_ARM_THM_PC9] = "R_ARM_THM_PC9" + }; + +static const char *reloc_map_table3[] = + { + [R_ARM_RXPC25] = "R_ARM_RXPC25", + [R_ARM_RSBREL32] = "R_ARM_RSBREL32", + [R_ARM_THM_RPC22] = "R_ARM_THM_RPC22", + [R_ARM_RREL32] = "R_ARM_RREL32", + [R_ARM_RABS22] = "R_ARM_RABS22", + [R_ARM_RPC24] = "R_ARM_RPC24", + [R_ARM_RBASE] = "R_ARM_RBASE" + }; + + +/* Determine relocation type string for Alpha. */ +const char * +arm_reloc_type_name (int type, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + if (type >= R_ARM_NONE && type <= R_ARM_ALU_SBREL_27_20) + return reloc_map_table[type]; + + if (type >= R_ARM_GNU_VTENTRY && type <= R_ARM_THM_PC9) + return reloc_map_table2[type - R_ARM_GNU_VTENTRY]; + + if (type >= R_ARM_RXPC25 && type <= R_ARM_RBASE) + return reloc_map_table3[type - R_ARM_RXPC25]; + + return NULL; +} + + +/* Check for correct relocation type. */ +bool +arm_reloc_type_check (int type) +{ + return ((type >= R_ARM_NONE && type <= R_ARM_ALU_SBREL_27_20) + || (type >= R_ARM_GNU_VTENTRY && type <= R_ARM_THM_PC9) + || (type >= R_ARM_RXPC25 && type <= R_ARM_RBASE)) ? true : false; +} + +/* Check whether given relocation is a copy relocation. */ +bool +arm_copy_reloc_p (int reloc) +{ + return reloc == R_ARM_COPY; +} diff --git a/libebl/eblbackendname.c b/libebl/eblbackendname.c new file mode 100644 index 0000000..03830eb --- /dev/null +++ b/libebl/eblbackendname.c @@ -0,0 +1,28 @@ +/* Return backend name. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +const char * +ebl_backend_name (ebl) + Ebl *ebl; +{ + return ebl != NULL ? ebl->emulation : gettext ("No backend"); +} diff --git a/libebl/eblclosebackend.c b/libebl/eblclosebackend.c new file mode 100644 index 0000000..c557961 --- /dev/null +++ b/libebl/eblclosebackend.c @@ -0,0 +1,39 @@ +/* Free ELF backend handle. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +void +ebl_closebackend (Ebl *ebl) +{ + if (ebl != NULL) + { + /* Run the destructor. */ + ebl->destr (ebl); + + /* Close the dynamically loaded object. */ + if (ebl->dlhandle != NULL) + (void) dlclose (ebl->dlhandle); + + /* Free the resources. */ + free (ebl); + } +} diff --git a/libebl/eblcopyrelocp.c b/libebl/eblcopyrelocp.c new file mode 100644 index 0000000..2d3362a --- /dev/null +++ b/libebl/eblcopyrelocp.c @@ -0,0 +1,28 @@ +/* Check whether given relocation is a copy relocation. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +bool +ebl_copy_reloc_p (ebl, reloc) + Ebl *ebl; + int reloc; +{ + return ebl->copy_reloc_p (reloc); +} diff --git a/libebl/eblcorenote.c b/libebl/eblcorenote.c new file mode 100644 index 0000000..725d3a1 --- /dev/null +++ b/libebl/eblcorenote.c @@ -0,0 +1,191 @@ +/* Print contents of core note. + Copyright (C) 2002, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include + + +void +ebl_core_note (ebl, name, type, descsz, desc) + Ebl *ebl; + const char *name; + uint32_t type; + uint32_t descsz; + const char *desc; +{ + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr = gelf_getehdr (ebl->elf, &ehdr_mem); + assert (ehdr != NULL); + int class = ehdr->e_ident[EI_CLASS]; + int endian = ehdr->e_ident[EI_DATA]; + + if (! ebl->core_note (name, type, descsz, desc)) + /* The machine specific function did not know this type. */ + switch (type) + { + case NT_PLATFORM: + printf (gettext (" Platform: %.*s\n"), (int) descsz, desc); + break; + + case NT_AUXV: + ; + size_t elsize = (class == ELFCLASS32 + ? sizeof (Elf32_auxv_t) : sizeof (Elf64_auxv_t)); + + for (size_t cnt = 0; (cnt + 1) * elsize <= descsz; ++cnt) + { + uintmax_t atype; + uintmax_t val; + + if (class == ELFCLASS32) + { + Elf32_auxv_t *auxv = &((Elf32_auxv_t *) desc)[cnt]; + + if ((endian == ELFDATA2LSB && __BYTE_ORDER == __LITTLE_ENDIAN) + || (endian == ELFDATA2MSB && __BYTE_ORDER == __BIG_ENDIAN)) + { + atype = auxv->a_type; + val = auxv->a_un.a_val; + } + else + { + atype = bswap_32 (auxv->a_type); + val = bswap_32 (auxv->a_un.a_val); + } + } + else + { + Elf64_auxv_t *auxv = &((Elf64_auxv_t *) desc)[cnt]; + + if ((endian == ELFDATA2LSB && __BYTE_ORDER == __LITTLE_ENDIAN) + || (endian == ELFDATA2MSB && __BYTE_ORDER == __BIG_ENDIAN)) + { + atype = auxv->a_type; + val = auxv->a_un.a_val; + } + else + { + atype = bswap_64 (auxv->a_type); + val = bswap_64 (auxv->a_un.a_val); + } + } + + /* XXX Do we need the auxiliary vector info anywhere + else? If yes, move code into a separate function. */ + const char *at; + + switch (atype) + { +#define NEW_AT(name) case AT_##name: at = #name; break + NEW_AT (NULL); + NEW_AT (IGNORE); + NEW_AT (EXECFD); + NEW_AT (PHDR); + NEW_AT (PHENT); + NEW_AT (PHNUM); + NEW_AT (PAGESZ); + NEW_AT (BASE); + NEW_AT (FLAGS); + NEW_AT (ENTRY); + NEW_AT (NOTELF); + NEW_AT (UID); + NEW_AT (EUID); + NEW_AT (GID); + NEW_AT (EGID); + NEW_AT (CLKTCK); + NEW_AT (PLATFORM); + NEW_AT (HWCAP); + NEW_AT (FPUCW); + NEW_AT (DCACHEBSIZE); + NEW_AT (ICACHEBSIZE); + NEW_AT (UCACHEBSIZE); + NEW_AT (IGNOREPPC); + NEW_AT (SECURE); + NEW_AT (SYSINFO); + NEW_AT (SYSINFO_EHDR); + NEW_AT (L1I_CACHESHAPE); + NEW_AT (L1D_CACHESHAPE); + NEW_AT (L2_CACHESHAPE); + NEW_AT (L3_CACHESHAPE); + + default:; + static char buf[30]; + sprintf (buf, "%ju (AT_?""?""?)", atype); + at = buf; + break; + } + + switch (atype) + { + case AT_NULL: + case AT_IGNORE: + case AT_IGNOREPPC: + case AT_NOTELF: + default: + printf (" %s\n", at); + break; + + case AT_EXECFD: + case AT_PHENT: + case AT_PHNUM: + case AT_PAGESZ: + case AT_UID: + case AT_EUID: + case AT_GID: + case AT_EGID: + case AT_CLKTCK: + case AT_FPUCW: + case AT_DCACHEBSIZE: + case AT_ICACHEBSIZE: + case AT_UCACHEBSIZE: + case AT_SECURE: + case AT_L1I_CACHESHAPE: + case AT_L1D_CACHESHAPE: + case AT_L2_CACHESHAPE: + case AT_L3_CACHESHAPE: + printf (" %s: %jd\n", at, val); + break; + + case AT_PHDR: + case AT_BASE: + case AT_FLAGS: /* XXX Print flags? */ + case AT_ENTRY: + case AT_PLATFORM: /* XXX Get string? */ + case AT_HWCAP: /* XXX Print flags? */ + case AT_SYSINFO: + case AT_SYSINFO_EHDR: + printf (" %s: %#jx\n", at, val); + break; + } + + if (atype == AT_NULL) + /* Reached the end. */ + break; + } + break; + + default: + /* Unknown type. */ + break; + } +} diff --git a/libebl/eblcorenotetypename.c b/libebl/eblcorenotetypename.c new file mode 100644 index 0000000..4a94d2b --- /dev/null +++ b/libebl/eblcorenotetypename.c @@ -0,0 +1,68 @@ +/* Return note type name. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + + +const char * +ebl_core_note_type_name (ebl, type, buf, len) + Ebl *ebl; + uint32_t type; + char *buf; + size_t len; +{ + const char *res = ebl->core_note_type_name (type, buf, len); + + if (res == NULL) + { + static const char *knowntypes[] = + { +#define KNOWNSTYPE(name) [NT_##name] = #name + KNOWNSTYPE (PRSTATUS), + KNOWNSTYPE (FPREGSET), + KNOWNSTYPE (PRPSINFO), + KNOWNSTYPE (TASKSTRUCT), + KNOWNSTYPE (PLATFORM), + KNOWNSTYPE (AUXV), + KNOWNSTYPE (GWINDOWS), + KNOWNSTYPE (ASRS), + KNOWNSTYPE (PSTATUS), + KNOWNSTYPE (PSINFO), + KNOWNSTYPE (PRCRED), + KNOWNSTYPE (UTSNAME), + KNOWNSTYPE (LWPSTATUS), + KNOWNSTYPE (LWPSINFO), + KNOWNSTYPE (PRFPXREG) + }; + + /* Handle standard names. */ + if (type < sizeof (knowntypes) / sizeof (knowntypes[0]) + && knowntypes[type] != NULL) + res = knowntypes[type]; + else + { + snprintf (buf, len, "%s: %" PRIu32, gettext (""), type); + + res = buf; + } + } + + return res; +} diff --git a/libebl/ebldebugscnp.c b/libebl/ebldebugscnp.c new file mode 100644 index 0000000..59310b5 --- /dev/null +++ b/libebl/ebldebugscnp.c @@ -0,0 +1,29 @@ +/* Check section name for being that of a debug informatino section. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +bool +ebl_debugscn_p (ebl, name) + Ebl *ebl; + const char *name; +{ + return ebl->debugscn_p (name); +} diff --git a/libebl/ebldynamictagcheck.c b/libebl/ebldynamictagcheck.c new file mode 100644 index 0000000..68b4169 --- /dev/null +++ b/libebl/ebldynamictagcheck.c @@ -0,0 +1,41 @@ +/* Check dynamic tag. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +bool +ebl_dynamic_tag_check (ebl, tag) + Ebl *ebl; + int64_t tag; +{ + bool res = ebl != NULL ? ebl->dynamic_tag_check (tag) : false; + + if (!res + && ((tag >= 0 && tag < DT_NUM) + || (tag >= DT_GNU_PRELINKED && tag <= DT_SYMINENT) + || (tag >= DT_GNU_CONFLICT && tag <= DT_SYMINFO) + || tag == DT_VERSYM + || (tag >= DT_RELACOUNT && tag <= DT_VERNEEDNUM) + || tag == DT_AUXILIARY + || tag == DT_FILTER)) + res = true; + + return res; +} diff --git a/libebl/ebldynamictagname.c b/libebl/ebldynamictagname.c new file mode 100644 index 0000000..464c1e2 --- /dev/null +++ b/libebl/ebldynamictagname.c @@ -0,0 +1,97 @@ +/* Return dynamic tag name. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + + +const char * +ebl_dynamic_tag_name (ebl, tag, buf, len) + Ebl *ebl; + int64_t tag; + char *buf; + size_t len; +{ + const char *res = ebl != NULL ? ebl->dynamic_tag_name (tag, buf, len) : NULL; + + if (res == NULL) + { + if (tag >= 0 && tag < DT_NUM) + { + static const char *stdtags[] = + { + "NULL", "NEEDED", "PLTRELSZ", "PLTGOT", "HASH", "STRTAB", + "SYMTAB", "RELA", "RELASZ", "RELAENT", "STRSZ", "SYMENT", + "INIT", "FINI", "SONAME", "RPATH", "SYMBOLIC", "REL", "RELSZ", + "RELENT", "PLTREL", "DEBUG", "TEXTREL", "JMPREL", "BIND_NOW", + "INIT_ARRAY", "FINI_ARRAY", "INIT_ARRAYSZ", "FINI_ARRAYSZ", + "RUNPATH", "FLAGS", "ENCODING", "PREINIT_ARRAY", + "PREINIT_ARRAYSZ" + }; + + res = stdtags[tag]; + } + else if (tag == DT_VERSYM) + res = "VERSYM"; + else if (tag >= DT_GNU_PRELINKED && tag <= DT_SYMINENT) + { + static const char *valrntags[] = + { + "GNU_PRELINKED", "GNU_CONFLICTSZ", "GNU_LIBLISTSZ", + "CHECKSUM", "PLTPADSZ", "MOVEENT", "MOVESZ", "FEATURE_1", + "POSFLAG_1", "SYMINSZ", "SYMINENT" + }; + + res = valrntags[tag - DT_GNU_PRELINKED]; + } + else if (tag >= DT_GNU_CONFLICT && tag <= DT_SYMINFO) + { + static const char *addrrntags[] = + { + "GNU_CONFLICT", "GNU_LIBLIST", "CONFIG", "DEPAUDIT", "AUDIT", + "PLTPAD", "MOVETAB", "SYMINFO" + }; + + res = addrrntags[tag - DT_GNU_CONFLICT]; + } + else if (tag >= DT_RELACOUNT && tag <= DT_VERNEEDNUM) + { + static const char *suntags[] = + { + "RELACOUNT", "RELCOUNT", "FLAGS_1", "VERDEF", "VERDEFNUM", + "VERNEED", "VERNEEDNUM" + }; + + res = suntags[tag - DT_RELACOUNT]; + } + else if (tag == DT_AUXILIARY) + res = "AUXILIARY"; + else if (tag == DT_FILTER) + res = "FILTER"; + else + { + snprintf (buf, len, gettext (": %" PRId64), tag); + + res = buf; + + } + } + + return res; +} diff --git a/libebl/eblgotpcreloccheck.c b/libebl/eblgotpcreloccheck.c new file mode 100644 index 0000000..8ae8b7b --- /dev/null +++ b/libebl/eblgotpcreloccheck.c @@ -0,0 +1,29 @@ +/* Return true if the symbol type is that referencing the GOT. E.g., + R_386_GOTPC. + Copyright (C) 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +bool +ebl_gotpc_reloc_check (ebl, reloc) + Ebl *ebl; + int reloc; +{ + return ebl != NULL ? ebl->gotpc_reloc_check (ebl->elf, reloc) : false; +} diff --git a/libebl/eblgstrtab.c b/libebl/eblgstrtab.c new file mode 100644 index 0000000..57cb2d8 --- /dev/null +++ b/libebl/eblgstrtab.c @@ -0,0 +1,350 @@ +/* Generic string table handling. + Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "libebl.h" + +#ifndef MIN +# define MIN(a, b) ((a) < (b) ? (a) : (b)) +#endif + + +struct Ebl_GStrent +{ + const char *string; + size_t len; + struct Ebl_GStrent *next; + struct Ebl_GStrent *left; + struct Ebl_GStrent *right; + size_t offset; + unsigned int width; + char reverse[0]; +}; + + +struct memoryblock +{ + struct memoryblock *next; + char memory[0]; +}; + + +struct Ebl_GStrtab +{ + struct Ebl_GStrent *root; + struct memoryblock *memory; + char *backp; + size_t left; + size_t total; + unsigned int width; + bool nullstr; + + struct Ebl_GStrent null; +}; + + +/* Cache for the pagesize. We correct this value a bit so that `malloc' + is not allocating more than a page. */ +static size_t ps; + + +struct Ebl_GStrtab * +ebl_gstrtabinit (unsigned int width, bool nullstr) +{ + struct Ebl_GStrtab *ret; + + if (ps == 0) + { + ps = sysconf (_SC_PAGESIZE) - 2 * sizeof (void *); + assert (sizeof (struct memoryblock) < ps); + } + + ret = (struct Ebl_GStrtab *) calloc (1, sizeof (struct Ebl_GStrtab)); + if (ret != NULL) + { + ret->width = width; + ret->nullstr = nullstr; + + if (nullstr) + { + ret->null.len = 1; + ret->null.string = (char *) calloc (1, width); + } + } + + return ret; +} + + +static void +morememory (struct Ebl_GStrtab *st, size_t len) +{ + struct memoryblock *newmem; + + if (len < ps) + len = ps; + newmem = (struct memoryblock *) malloc (len); + if (newmem == NULL) + abort (); + + newmem->next = st->memory; + st->memory = newmem; + st->backp = newmem->memory; + st->left = len - offsetof (struct memoryblock, memory); +} + + +void +ebl_gstrtabfree (struct Ebl_GStrtab *st) +{ + struct memoryblock *mb = st->memory; + + while (mb != NULL) + { + void *old = mb; + mb = mb->next; + free (old); + } + + if (st->null.string != NULL) + free ((char *) st->null.string); + + free (st); +} + + +static struct Ebl_GStrent * +newstring (struct Ebl_GStrtab *st, const char *str, size_t len) +{ + /* Compute the amount of padding needed to make the structure aligned. */ + size_t align = ((__alignof__ (struct Ebl_GStrent) + - (((uintptr_t) st->backp) + & (__alignof__ (struct Ebl_GStrent) - 1))) + & (__alignof__ (struct Ebl_GStrent) - 1)); + + /* Make sure there is enough room in the memory block. */ + if (st->left < align + sizeof (struct Ebl_GStrent) + len * st->width) + { + morememory (st, sizeof (struct Ebl_GStrent) + len * st->width); + align = 0; + } + + /* Create the reserved string. */ + struct Ebl_GStrent *newstr = (struct Ebl_GStrent *) (st->backp + align); + newstr->string = str; + newstr->len = len; + newstr->width = st->width; + newstr->next = NULL; + newstr->left = NULL; + newstr->right = NULL; + newstr->offset = 0; + for (int i = len - 2; i >= 0; --i) + for (int j = st->width - 1; j >= 0; --j) + newstr->reverse[i * st->width + j] = str[(len - 2 - i) * st->width + j]; + for (size_t j = 0; j < st->width; ++j) + newstr->reverse[(len - 1) * st->width + j] = '\0'; + st->backp += align + sizeof (struct Ebl_GStrent) + len * st->width; + st->left -= align + sizeof (struct Ebl_GStrent) + len * st->width; + + return newstr; +} + + +/* XXX This function should definitely be rewritten to use a balancing + tree algorith (AVL, red-black trees). For now a simple, correct + implementation is enough. */ +static struct Ebl_GStrent ** +searchstring (struct Ebl_GStrent **sep, struct Ebl_GStrent *newstr) +{ + int cmpres; + + /* More strings? */ + if (*sep == NULL) + { + *sep = newstr; + return sep; + } + + /* Compare the strings. */ + cmpres = memcmp ((*sep)->reverse, newstr->reverse, + (MIN ((*sep)->len, newstr->len) - 1) * (*sep)->width); + if (cmpres == 0) + /* We found a matching string. */ + return sep; + else if (cmpres > 0) + return searchstring (&(*sep)->left, newstr); + else + return searchstring (&(*sep)->right, newstr); +} + + +/* Add new string. The actual string is assumed to be permanent. */ +struct Ebl_GStrent * +ebl_gstrtabadd (struct Ebl_GStrtab *st, const char *str, size_t len) +{ + struct Ebl_GStrent *newstr; + struct Ebl_GStrent **sep; + + /* Compute the string length if the caller doesn't know it. */ + if (len == 0) + { + size_t j; + + do + for (j = 0; j < st->width; ++j) + if (str[len * st->width + j] != '\0') + break; + while (j == st->width && ++len); + } + + /* Make sure all "" strings get offset 0 but only if the table was + created with a special null entry in mind. */ + if (len == 1 && st->null.string != NULL) + return &st->null; + + /* Allocate memory for the new string and its associated information. */ + newstr = newstring (st, str, len); + + /* Search in the array for the place to insert the string. If there + is no string with matching prefix and no string with matching + leading substring, create a new entry. */ + sep = searchstring (&st->root, newstr); + if (*sep != newstr) + { + /* This is not the same entry. This means we have a prefix match. */ + if ((*sep)->len > newstr->len) + { + struct Ebl_GStrent *subs; + + /* Check whether we already know this string. */ + for (subs = (*sep)->next; subs != NULL; subs = subs->next) + if (subs->len == newstr->len) + { + /* We have an exact match with a substring. Free the memory + we allocated. */ + st->left += (st->backp - (char *) newstr) * st->width; + st->backp = (char *) newstr; + + return subs; + } + + /* We have a new substring. This means we don't need the reverse + string of this entry anymore. */ + st->backp -= newstr->len; + st->left += newstr->len; + + newstr->next = (*sep)->next; + (*sep)->next = newstr; + } + else if ((*sep)->len != newstr->len) + { + /* When we get here it means that the string we are about to + add has a common prefix with a string we already have but + it is longer. In this case we have to put it first. */ + st->total += newstr->len - (*sep)->len; + newstr->next = *sep; + newstr->left = (*sep)->left; + newstr->right = (*sep)->right; + *sep = newstr; + } + else + { + /* We have an exact match. Free the memory we allocated. */ + st->left += (st->backp - (char *) newstr) * st->width; + st->backp = (char *) newstr; + + newstr = *sep; + } + } + else + st->total += newstr->len; + + return newstr; +} + + +static void +copystrings (struct Ebl_GStrent *nodep, char **freep, size_t *offsetp) +{ + struct Ebl_GStrent *subs; + + if (nodep->left != NULL) + copystrings (nodep->left, freep, offsetp); + + /* Process the current node. */ + nodep->offset = *offsetp; + *freep = (char *) mempcpy (*freep, nodep->string, nodep->len * nodep->width); + *offsetp += nodep->len * nodep->width; + + for (subs = nodep->next; subs != NULL; subs = subs->next) + { + assert (subs->len < nodep->len); + subs->offset = nodep->offset + (nodep->len - subs->len) * nodep->width; + assert (subs->offset != 0 || subs->string[0] == '\0'); + } + + if (nodep->right != NULL) + copystrings (nodep->right, freep, offsetp); +} + + +void +ebl_gstrtabfinalize (struct Ebl_GStrtab *st, Elf_Data *data) +{ + size_t copylen; + char *endp; + size_t nulllen = st->nullstr ? st->width : 0; + + /* Fill in the information. */ + data->d_buf = malloc (st->total + nulllen); + if (data->d_buf == NULL) + abort (); + + /* The first byte must always be zero if we created the table with a + null string. */ + if (st->nullstr) + memset (data->d_buf, '\0', st->width); + + data->d_type = ELF_T_BYTE; + data->d_size = st->total + nulllen; + data->d_off = 0; + data->d_align = 1; + data->d_version = EV_CURRENT; + + /* Now run through the tree and add all the string while also updating + the offset members of the elfstrent records. */ + endp = (char *) data->d_buf + nulllen; + copylen = nulllen; + copystrings (st->root, &endp, ©len); + assert (copylen == st->total * st->width + nulllen); +} + + +size_t +ebl_gstrtaboffset (struct Ebl_GStrent *se) +{ + return se->offset; +} diff --git a/libebl/eblmachineflagcheck.c b/libebl/eblmachineflagcheck.c new file mode 100644 index 0000000..abc8d30 --- /dev/null +++ b/libebl/eblmachineflagcheck.c @@ -0,0 +1,28 @@ +/* Check machine flag. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +bool +ebl_machine_flag_check (ebl, flags) + Ebl *ebl; + Elf64_Word flags; +{ + return ebl != NULL ? ebl->machine_flag_check (flags) : (flags == 0); +} diff --git a/libebl/eblmachineflagname.c b/libebl/eblmachineflagname.c new file mode 100644 index 0000000..228a994 --- /dev/null +++ b/libebl/eblmachineflagname.c @@ -0,0 +1,76 @@ +/* Return machine flag names. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + + +const char * +ebl_machine_flag_name (ebl, flags, buf, len) + Ebl *ebl; + Elf64_Word flags; + char *buf; + size_t len; +{ + const char *res; + + if (flags == 0) + res = ""; + else + { + char *cp = buf; + int first = 1; + const char *machstr; + size_t machstrlen; + + do + { + if (! first) + { + if (cp + 1 >= buf + len) + break; + *cp++ = ','; + } + + machstr = ebl != NULL ? ebl->machine_flag_name (&flags) : NULL; + if (machstr == NULL) + { + /* No more known flag. */ + snprintf (cp, buf + len - cp, "%#x", flags); + break; + } + + machstrlen = strlen (machstr) + 1; + if ((size_t) (buf + len - cp) < machstrlen) + { + *((char *) mempcpy (cp, machstr, buf + len - cp - 1)) = '\0'; + break; + } + + cp = mempcpy (cp, machstr, machstrlen); + + first = 0; + } + while (flags != 0); + + res = buf; + } + + return res; +} diff --git a/libebl/eblobjecttypename.c b/libebl/eblobjecttypename.c new file mode 100644 index 0000000..c099c71 --- /dev/null +++ b/libebl/eblobjecttypename.c @@ -0,0 +1,48 @@ +/* Return object file type name. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +const char * +ebl_object_type_name (ebl, object, buf, len) + Ebl *ebl; + int object; + char *buf; + size_t len; +{ + const char *res; + + res = ebl != NULL ? ebl->object_type_name (object, buf, len) : NULL; + if (res == NULL) + { + /* Handle OS-specific section names. */ + if (object >= ET_LOOS && object <= ET_HIOS) + snprintf (buf, len, "LOOS+%x", object - ET_LOOS); + /* Handle processor-specific section names. */ + else if (object >= ET_LOPROC && object <= ET_HIPROC) + snprintf (buf, len, "LOPROC+%x", object - ET_LOPROC); + else + snprintf (buf, len, "%s: %d", gettext (""), object); + + res = buf; + } + + return res; +} diff --git a/libebl/eblobjnote.c b/libebl/eblobjnote.c new file mode 100644 index 0000000..5adff18 --- /dev/null +++ b/libebl/eblobjnote.c @@ -0,0 +1,87 @@ +/* Print contents of object file note. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + + +void +ebl_object_note (ebl, name, type, descsz, desc) + Ebl *ebl; + const char *name; + uint32_t type; + uint32_t descsz; + const char *desc; +{ + if (! ebl->object_note (name, type, descsz, desc)) + /* The machine specific function did not know this type. */ + switch (type) + { + case NT_VERSION: + if (strcmp (name, "GNU") == 0 && descsz >= 8) + { + struct + { + uint32_t os; + uint32_t version[descsz / 4 - 1]; + } *tag = (__typeof (tag)) desc; + + const char *os; + switch (tag->os) + { + case ELF_NOTE_OS_LINUX: + os = "Linux"; + break; + + case ELF_NOTE_OS_GNU: + os = "GNU"; + break; + + case ELF_NOTE_OS_SOLARIS2: + os = "Solaris"; + break; + + case ELF_NOTE_OS_FREEBSD: + os = "FreeBSD"; + break; + + default: + os = "???"; + break; + } + + printf (gettext (" OS: %s, ABI: "), os); + size_t cnt; + for (cnt = 0; cnt < descsz / 4 - 1; ++cnt) + { + if (cnt != 0) + putchar_unlocked ('.'); + printf ("%" PRIu32, tag->version[cnt]); + } + putchar_unlocked ('\n'); + break; + } + /* FALLTHROUGH */ + + default: + /* Unknown type. */ + break; + } +} diff --git a/libebl/eblobjnotetypename.c b/libebl/eblobjnotetypename.c new file mode 100644 index 0000000..a963cef --- /dev/null +++ b/libebl/eblobjnotetypename.c @@ -0,0 +1,54 @@ +/* Return note type name. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + + +const char * +ebl_object_note_type_name (ebl, type, buf, len) + Ebl *ebl; + uint32_t type; + char *buf; + size_t len; +{ + const char *res = ebl->object_note_type_name (type, buf, len); + + if (res == NULL) + { + static const char *knowntypes[] = + { +#define KNOWNSTYPE(name) [NT_##name] = #name + KNOWNSTYPE (VERSION), + }; + + /* Handle standard names. */ + if (type < sizeof (knowntypes) / sizeof (knowntypes[0]) + && knowntypes[type] != NULL) + res = knowntypes[type]; + else + { + snprintf (buf, len, "%s: %" PRIu32, gettext (""), type); + + res = buf; + } + } + + return res; +} diff --git a/libebl/eblopenbackend.c b/libebl/eblopenbackend.c new file mode 100644 index 0000000..dc2f7c3 --- /dev/null +++ b/libebl/eblopenbackend.c @@ -0,0 +1,551 @@ +/* Generate ELF backend handle. + Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include + +#include + + +/* This table should contain the complete list of architectures as far + as the ELF specification is concerned. */ +/* XXX When things are stable replace the string pointers with char + arrays to avoid relocations. */ +static const struct +{ + const char *dsoname; + const char *emulation; + const char *prefix; + int prefix_len; + int em; +} machines[] = +{ + { "i386", "elf_i386", "i386", 4, EM_386 }, + { "ia64", "elf_ia64", "ia64", 4, EM_IA_64 }, + { "alpha", "elf_alpha", "alpha", 5, EM_ALPHA }, + { "x86_64", "elf_x86_64", "x86_64", 6, EM_X86_64 }, + { "sh", "elf_sh", "sh", 2, EM_SH }, + { "arm", "ebl_arm", "arm", 3, EM_ARM }, + { "sparc", "elf_sparcv9", "sparc", 5, EM_SPARCV9 }, + { "sparc", "elf_sparc", "sparc", 5, EM_SPARC }, + { "sparc", "elf_sparcv8plus", "sparc", 5, EM_SPARC32PLUS }, + + { "m32", "elf_m32", "m32", 3, EM_M32 }, + { "m68k", "elf_m68k", "m68k", 4, EM_68K }, + { "m88k", "elf_m88k", "m88k", 4, EM_88K }, + { "i860", "elf_i860", "i860", 4, EM_860 }, + { "mips", "elf_mips", "mips", 4, EM_MIPS }, + { "s370", "ebl_s370", "s370", 4, EM_S370 }, + { "mips", "elf_mipsel", "mips", 4, EM_MIPS_RS3_LE }, + { "parisc", "elf_parisc", "parisc", 6, EM_PARISC }, + { "vpp500", "elf_vpp500", "vpp500", 5, EM_VPP500 }, + { "sparc", "elf_v8plus", "v8plus", 6, EM_SPARC32PLUS }, + { "i960", "elf_i960", "i960", 4, EM_960 }, + { "ppc", "elf_ppc", "ppc", 3, EM_PPC }, + { "ppc64", "elf_ppc64", "ppc64", 5, EM_PPC64 }, + { "s390", "ebl_s390", "s390", 4, EM_S390 }, + { "v800", "ebl_v800", "v800", 4, EM_V800 }, + { "fr20", "ebl_fr20", "fr20", 4, EM_FR20 }, + { "rh32", "ebl_rh32", "rh32", 4, EM_RH32 }, + { "rce", "ebl_rce", "rce", 3, EM_RCE }, + { "tricore", "elf_tricore", "tricore", 7, EM_TRICORE }, + { "arc", "elf_arc", "arc", 3, EM_ARC }, + { "h8", "elf_h8_300", "h8_300", 6, EM_H8_300 }, + { "h8", "elf_h8_300h", "h8_300h", 6, EM_H8_300H }, + { "h8", "elf_h8s", "h8s", 6, EM_H8S }, + { "h8", "elf_h8_500", "h8_500", 6, EM_H8_500 }, + { "mips_x", "elf_mips_x", "mips_x", 6, EM_MIPS_X }, + { "coldfire", "elf_coldfire", "coldfire", 8, EM_COLDFIRE }, + { "m68k", "elf_68hc12", "68hc12", 6, EM_68HC12 }, + { "mma", "elf_mma", "mma", 3, EM_MMA }, + { "pcp", "elf_pcp", "pcp", 3, EM_PCP }, + { "ncpu", "elf_ncpu", "ncpu", 4, EM_NCPU }, + { "ndr1", "elf_ndr1", "ndr1", 4, EM_NDR1 }, + { "starcore", "elf_starcore", "starcore", 8, EM_STARCORE }, + { "me16", "elf_me16", "em16", 4, EM_ME16 }, + { "st100", "elf_st100", "st100", 5, EM_ST100 }, + { "tinyj", "elf_tinyj", "tinyj", 5, EM_TINYJ }, + { "pdsp", "elf_pdsp", "pdsp", 4, EM_PDSP }, + { "fx66", "elf_fx66", "fx66", 4, EM_FX66 }, + { "st9plus", "elf_st9plus", "st9plus", 7, EM_ST9PLUS }, + { "st7", "elf_st7", "st7", 3, EM_ST7 }, + { "m68k", "elf_68hc16", "68hc16", 6, EM_68HC16 }, + { "m68k", "elf_68hc11", "68hc11", 6, EM_68HC11 }, + { "m68k", "elf_68hc08", "68hc08", 6, EM_68HC08 }, + { "m68k", "elf_68hc05", "68hc05", 6, EM_68HC05 }, + { "svx", "elf_svx", "svx", 3, EM_SVX }, + { "st19", "elf_st19", "st19", 4, EM_ST19 }, + { "vax", "elf_vax", "vax", 3, EM_VAX }, + { "cris", "elf_cris", "cris", 4, EM_CRIS }, + { "javelin", "elf_javelin", "javelin", 7, EM_JAVELIN }, + { "firepath", "elf_firepath", "firepath", 8, EM_FIREPATH }, + { "zsp", "elf_zsp", "zsp", 3, EM_ZSP}, + { "mmix", "elf_mmix", "mmix", 4, EM_MMIX }, + { "hunay", "elf_huany", "huany", 5, EM_HUANY }, + { "prism", "elf_prism", "prism", 5, EM_PRISM }, + { "avr", "elf_avr", "avr", 3, EM_AVR }, + { "fr30", "elf_fr30", "fr30", 4, EM_FR30 }, + { "dv10", "elf_dv10", "dv10", 4, EM_D10V }, + { "dv30", "elf_dv30", "dv30", 4, EM_D30V }, + { "v850", "elf_v850", "v850", 4, EM_V850 }, + { "m32r", "elf_m32r", "m32r", 4, EM_M32R }, + { "mn10300", "elf_mn10300", "mn10300", 7, EM_MN10300 }, + { "mn10200", "elf_mn10200", "mn10200", 7, EM_MN10200 }, + { "pj", "elf_pj", "pj", 2, EM_PJ }, + { "openrisc", "elf_openrisc", "openrisc", 8, EM_OPENRISC }, + { "arc", "elf_arc_a5", "arc_a5", 6, EM_ARC_A5 }, + { "xtensa", "elf_xtensa", "xtensa", 6, EM_XTENSA }, +}; +#define nmachines (sizeof (machines) / sizeof (machines[0])) + + +/* Default callbacks. Mostly they just return the error value. */ +static const char *default_object_type_name (int ignore, char *buf, + size_t len); +static const char *default_reloc_type_name (int ignore, char *buf, size_t len); +static bool default_reloc_type_check (int ignore); +static bool default_reloc_valid_use (Elf *elf, int ignore); +static Elf_Type default_reloc_simple_type (Elf *elf, int ignore); +static bool default_gotpc_reloc_check (Elf *elf, int ignore); +static const char *default_segment_type_name (int ignore, char *buf, + size_t len); +static const char *default_section_type_name (int ignore, char *buf, + size_t len); +static const char *default_section_name (int ignore, int ignore2, char *buf, + size_t len); +static const char *default_machine_flag_name (Elf64_Word *ignore); +static bool default_machine_flag_check (Elf64_Word flags); +static const char *default_symbol_type_name (int ignore, char *buf, + size_t len); +static const char *default_symbol_binding_name (int ignore, char *buf, + size_t len); +static const char *default_dynamic_tag_name (int64_t ignore, char *buf, + size_t len); +static bool default_dynamic_tag_check (int64_t ignore); +static GElf_Word default_sh_flags_combine (GElf_Word flags1, GElf_Word flags2); +static const char *default_osabi_name (int ignore, char *buf, size_t len); +static void default_destr (struct ebl *ignore); +static const char *default_core_note_type_name (uint32_t, char *buf, + size_t len); +static const char *default_object_note_type_name (uint32_t, char *buf, + size_t len); +static bool default_core_note (const char *name, uint32_t type, + uint32_t descsz, const char *desc); +static bool default_object_note (const char *name, uint32_t type, + uint32_t descsz, const char *desc); +static bool default_debugscn_p (const char *name); +static bool default_copy_reloc_p (int reloc); + + +static void +fill_defaults (Ebl *result) +{ + result->object_type_name = default_object_type_name; + result->reloc_type_name = default_reloc_type_name; + result->reloc_type_check = default_reloc_type_check; + result->reloc_valid_use = default_reloc_valid_use; + result->reloc_simple_type = default_reloc_simple_type; + result->gotpc_reloc_check = default_gotpc_reloc_check; + result->segment_type_name = default_segment_type_name; + result->section_type_name = default_section_type_name; + result->section_name = default_section_name; + result->machine_flag_name = default_machine_flag_name; + result->machine_flag_check = default_machine_flag_check; + result->symbol_type_name = default_symbol_type_name; + result->symbol_binding_name = default_symbol_binding_name; + result->dynamic_tag_name = default_dynamic_tag_name; + result->dynamic_tag_check = default_dynamic_tag_check; + result->sh_flags_combine = default_sh_flags_combine; + result->osabi_name = default_osabi_name; + result->core_note_type_name = default_core_note_type_name; + result->object_note_type_name = default_object_note_type_name; + result->core_note = default_core_note; + result->object_note = default_object_note; + result->debugscn_p = default_debugscn_p; + result->copy_reloc_p = default_copy_reloc_p; + result->destr = default_destr; +} + + +/* Find an appropriate backend for the file associated with ELF. */ +static Ebl * +openbackend (elf, emulation, machine) + Elf *elf; + const char *emulation; + GElf_Half machine; +{ + Ebl *result; + size_t cnt; + + /* First allocate the data structure for the result. We do this + here since this assures that the structure is always large + enough. */ + result = (Ebl *) calloc (1, sizeof (Ebl)); + if (result == NULL) + { + // XXX uncomment + // __libebl_seterror (ELF_E_NOMEM); + return NULL; + } + + /* Fill in the default callbacks. The initializer for the machine + specific module can overwrite the values. */ + fill_defaults (result); + + /* XXX Currently all we do is to look at 'e_machine' value in the + ELF header. With an internal mapping table from EM_* value to + DSO name we try to load the appropriate module to handle this + binary type. + + Multiple modules for the same machine type are possible and they + will be tried in sequence. The lookup process will only stop + when a module which can handle the machine type is found or all + available matching modules are tried. */ + for (cnt = 0; cnt < nmachines; ++cnt) + if ((emulation != NULL && strcmp (emulation, machines[cnt].emulation) == 0) + || (emulation == NULL && machines[cnt].em == machine)) + { + /* Well, we know the emulation name now. */ + result->emulation = machines[cnt].emulation; + +#ifndef LIBEBL_SUBDIR +# define LIBEBL_SUBDIR PACKAGE +#endif +#define ORIGINDIR "$ORIGIN/../$LIB/" LIBEBL_SUBDIR "/" + + /* Give it a try. At least the machine type matches. First + try to load the module. */ + char dsoname[100]; + strcpy (stpcpy (stpcpy (dsoname, ORIGINDIR "libebl_"), + machines[cnt].dsoname), + ".so"); + + void *h = dlopen (dsoname, RTLD_LAZY); + if (h == NULL) + { + strcpy (stpcpy (stpcpy (dsoname, "libebl_"), + machines[cnt].dsoname), + ".so"); + h = dlopen (dsoname, RTLD_LAZY); + } + + /* Try without an explicit path. */ + if (h != NULL) + { + /* We managed to load the object. Now see whether the + initialization function likes our file. */ + static const char version[] = MODVERSION; + const char *modversion; + ebl_bhinit_t initp; + char symname[machines[cnt].prefix_len + sizeof "_init"]; + + strcpy (mempcpy (symname, machines[cnt].prefix, + machines[cnt].prefix_len), "_init"); + + initp = (ebl_bhinit_t) dlsym (h, symname); + if (initp != NULL + && (modversion = initp (elf, machine, result, sizeof (Ebl))) + && strcmp (version, modversion) == 0) + { + /* We found a module to handle our file. */ + result->dlhandle = h; + result->elf = elf; + + /* A few entries are mandatory. */ + assert (result->name != NULL); + assert (result->destr != NULL); + + return result; + } + + /* Not the module we need. */ + (void) dlclose (h); + } + + /* We cannot find a DSO but the emulation/machine ID matches. + Return that information. */ + result->dlhandle = NULL; + result->elf = elf; + result->name = machines[cnt].prefix; + fill_defaults (result); + + return result; + } + + /* Nothing matched. We use only the default callbacks. */ + result->dlhandle = NULL; + result->elf = elf; + result->emulation = ""; + result->name = ""; + fill_defaults (result); + + return result; +} + + +/* Find an appropriate backend for the file associated with ELF. */ +Ebl * +ebl_openbackend (elf) + Elf *elf; +{ + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + + /* Get the ELF header of the object. */ + ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + { + // XXX uncomment + // __libebl_seterror (elf_errno ()); + return NULL; + } + + return openbackend (elf, NULL, ehdr->e_machine); +} + + +/* Find backend without underlying ELF file. */ +Ebl * +ebl_openbackend_machine (machine) + GElf_Half machine; +{ + return openbackend (NULL, NULL, machine); +} + + +/* Find backend with given emulation name. */ +Ebl * +ebl_openbackend_emulation (const char *emulation) +{ + return openbackend (NULL, emulation, EM_NONE); +} + + +/* Default callbacks. Mostly they just return the error value. */ +static const char * +default_object_type_name (int ignore __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static const char * +default_reloc_type_name (int ignore __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static bool +default_reloc_type_check (int ignore __attribute__ ((unused))) +{ + return false; +} + +static bool +default_reloc_valid_use (Elf *elf __attribute__ ((unused)), + int ignore __attribute__ ((unused))) +{ + return false; +} + +static Elf_Type +default_reloc_simple_type (Elf *elf __attribute__ ((unused)), + int ignore __attribute__ ((unused))) +{ + return ELF_T_NUM; +} + +static bool +default_gotpc_reloc_check (Elf *elf __attribute__ ((unused)), + int ignore __attribute__ ((unused))) +{ + return false; +} + +static const char * +default_segment_type_name (int ignore __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static const char * +default_section_type_name (int ignore __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static const char * +default_section_name (int ignore __attribute__ ((unused)), + int ignore2 __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static const char * +default_machine_flag_name (Elf64_Word *ignore __attribute__ ((unused))) +{ + return NULL; +} + +static bool +default_machine_flag_check (Elf64_Word flags __attribute__ ((unused))) +{ + return flags == 0; +} + +static const char * +default_symbol_type_name (int ignore __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static const char * +default_symbol_binding_name (int ignore __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static const char * +default_dynamic_tag_name (int64_t ignore __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static bool +default_dynamic_tag_check (int64_t ignore __attribute__ ((unused))) +{ + return false; +} + +static GElf_Word +default_sh_flags_combine (GElf_Word flags1, GElf_Word flags2) +{ + return SH_FLAGS_COMBINE (flags1, flags2); +} + +static void +default_destr (struct ebl *ignore __attribute__ ((unused))) +{ +} + +static const char * +default_osabi_name (int ignore __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static const char * +default_core_note_type_name (uint32_t ignore __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static const char * +default_object_note_type_name (uint32_t ignore __attribute__ ((unused)), + char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + return NULL; +} + +static bool +default_core_note (const char *name __attribute__ ((unused)), + uint32_t type __attribute__ ((unused)), + uint32_t descsz __attribute__ ((unused)), + const char *desc __attribute__ ((unused))) +{ + return NULL; +} + +static bool +default_object_note (const char *name __attribute__ ((unused)), + uint32_t type __attribute__ ((unused)), + uint32_t descsz __attribute__ ((unused)), + const char *desc __attribute__ ((unused))) +{ + return NULL; +} + +static bool +default_debugscn_p (const char *name) +{ + /* We know by default only about the DWARF debug sections which have + fixed names. */ + static const char *dwarf_scn_names[] = + { + /* DWARF 1 */ + ".debug", + ".line", + /* GNU DWARF 1 extensions */ + ".debug_srcinfo", + ".debug_sfnames", + /* DWARF 1.1 and DWARF 2 */ + ".debug_aranges", + ".debug_pubnames", + /* DWARF 2 */ + ".debug_info", + ".debug_abbrev", + ".debug_line", + ".debug_frame", + ".debug_str", + ".debug_loc", + ".debug_macinfo", + /* DWARF 3 */ + ".debug_ranges", + /* SGI/MIPS DWARF 2 extensions */ + ".debug_weaknames", + ".debug_funcnames", + ".debug_typenames", + ".debug_varnames" + }; + const size_t ndwarf_scn_names = (sizeof (dwarf_scn_names) + / sizeof (dwarf_scn_names[0])); + for (size_t cnt = 0; cnt < ndwarf_scn_names; ++cnt) + if (strcmp (name, dwarf_scn_names[cnt]) == 0) + return true; + + return false; +} + +static bool +default_copy_reloc_p (int reloc __attribute__ ((unused))) +{ + return false; +} diff --git a/libebl/eblosabiname.c b/libebl/eblosabiname.c new file mode 100644 index 0000000..9a1e653 --- /dev/null +++ b/libebl/eblosabiname.c @@ -0,0 +1,69 @@ +/* Return OS ABI name + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +const char * +ebl_osabi_name (ebl, osabi, buf, len) + Ebl *ebl; + int osabi; + char *buf; + size_t len; +{ + const char *res = ebl != NULL ? ebl->osabi_name (osabi, buf, len) : NULL; + + if (res == NULL) + { + if (osabi == ELFOSABI_NONE) + res = "UNIX - System V"; + else if (osabi == ELFOSABI_HPUX) + res = "HP/UX"; + else if (osabi == ELFOSABI_NETBSD) + res = "NetBSD"; + else if (osabi == ELFOSABI_LINUX) + res = "Linux"; + else if (osabi == ELFOSABI_SOLARIS) + res = "Solaris"; + else if (osabi == ELFOSABI_AIX) + res = "AIX"; + else if (osabi == ELFOSABI_IRIX) + res = "Irix"; + else if (osabi == ELFOSABI_FREEBSD) + res = "FreeBSD"; + else if (osabi == ELFOSABI_TRU64) + res = "TRU64"; + else if (osabi == ELFOSABI_MODESTO) + res = "Modesto"; + else if (osabi == ELFOSABI_OPENBSD) + res = "OpenBSD"; + else if (osabi == ELFOSABI_ARM) + res = "Arm"; + else if (osabi == ELFOSABI_STANDALONE) + res = gettext ("Stand alone"); + else + { + snprintf (buf, len, "%s: %d", gettext (""), osabi); + + res = buf; + } + } + + return res; +} diff --git a/libebl/eblrelocsimpletype.c b/libebl/eblrelocsimpletype.c new file mode 100644 index 0000000..3e048d1 --- /dev/null +++ b/libebl/eblrelocsimpletype.c @@ -0,0 +1,27 @@ +/* Check relocation type for simple types. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +Elf_Type +ebl_reloc_simple_type (ebl, reloc) + Ebl *ebl; + int reloc; +{ + return ebl != NULL ? ebl->reloc_simple_type (ebl->elf, reloc) : ELF_T_NUM; +} diff --git a/libebl/eblreloctypecheck.c b/libebl/eblreloctypecheck.c new file mode 100644 index 0000000..cafbc61 --- /dev/null +++ b/libebl/eblreloctypecheck.c @@ -0,0 +1,28 @@ +/* Check relocation type. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +bool +ebl_reloc_type_check (ebl, reloc) + Ebl *ebl; + int reloc; +{ + return ebl != NULL ? ebl->reloc_type_check (reloc) : false; +} diff --git a/libebl/eblreloctypename.c b/libebl/eblreloctypename.c new file mode 100644 index 0000000..5fa9560 --- /dev/null +++ b/libebl/eblreloctypename.c @@ -0,0 +1,38 @@ +/* Return relocation type name. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +const char * +ebl_reloc_type_name (ebl, reloc, buf, len) + Ebl *ebl; + int reloc; + char *buf; + size_t len; +{ + const char *res; + + res = ebl != NULL ? ebl->reloc_type_name (reloc, buf, len) : NULL; + if (res == NULL) + /* There are no generic relocation type names. */ + res = "???"; + + return res; +} diff --git a/libebl/eblrelocvaliduse.c b/libebl/eblrelocvaliduse.c new file mode 100644 index 0000000..7488986 --- /dev/null +++ b/libebl/eblrelocvaliduse.c @@ -0,0 +1,28 @@ +/* Check relocation type use. + Copyright (C) 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +bool +ebl_reloc_valid_use (ebl, reloc) + Ebl *ebl; + int reloc; +{ + return ebl != NULL ? ebl->reloc_valid_use (ebl->elf, reloc) : false; +} diff --git a/libebl/eblsectionname.c b/libebl/eblsectionname.c new file mode 100644 index 0000000..6c801db --- /dev/null +++ b/libebl/eblsectionname.c @@ -0,0 +1,81 @@ +/* Return section name. + Copyright (C) 2001, 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +const char * +ebl_section_name (ebl, section, xsection, buf, len, scnnames, shnum) + Ebl *ebl; + int section; + int xsection; + char *buf; + size_t len; + const char *scnnames[]; + size_t shnum; +{ + const char *res = ebl != NULL ? ebl->section_name (section, xsection, + buf, len) : NULL; + + if (res == NULL) + { + if (section == SHN_UNDEF) + res = "UNDEF"; + else if (section == SHN_ABS) + res = "ABS"; + else if (section == SHN_COMMON) + res = "COMMON"; + else if (section == SHN_BEFORE) + res = "BEFORE"; + else if (section == SHN_AFTER) + res = "AFTER"; + else if ((section < SHN_LORESERVE || section == SHN_XINDEX) + && (size_t) section < shnum) + { + int idx = section != SHN_XINDEX ? section : xsection; + + if (scnnames != NULL) + res = scnnames[idx]; + else + { + snprintf (buf, len, "%d", idx); + res = buf; + } + } + else + { + /* Handle OS-specific section names. */ + if (section == SHN_XINDEX) + snprintf (buf, len, "%s: %d", "XINDEX", xsection); + else if (section >= SHN_LOOS && section <= SHN_HIOS) + snprintf (buf, len, "LOOS+%x", section - SHN_LOOS); + /* Handle processor-specific section names. */ + else if (section >= SHN_LOPROC && section <= SHN_HIPROC) + snprintf (buf, len, "LOPROC+%x", section - SHN_LOPROC); + else if (section >= SHN_LORESERVE && section <= SHN_HIRESERVE) + snprintf (buf, len, "LORESERVE+%x", section - SHN_LORESERVE); + else + snprintf (buf, len, "%s: %d", gettext (""), section); + + res = buf; + } + } + + return res; +} diff --git a/libebl/eblsectionstripp.c b/libebl/eblsectionstripp.c new file mode 100644 index 0000000..77a22ca --- /dev/null +++ b/libebl/eblsectionstripp.c @@ -0,0 +1,52 @@ +/* Check whether section can be stripped. + Copyright (C) 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libeblP.h" + + +bool +ebl_section_strip_p (Ebl *ebl, const GElf_Ehdr *ehdr, const GElf_Shdr *shdr, + const char *name, bool remove_comment, + bool only_remove_debug) +{ + /* If only debug information should be removed check the name. There + is unfortunately no other way. */ + if (unlikely (only_remove_debug)) + { + if (ebl_debugscn_p (ebl, name)) + return true; + + if (shdr->sh_type == SHT_RELA || shdr->sh_type == SHT_REL) + { + Elf_Scn *scn_l = elf_getscn (ebl->elf, (shdr)->sh_info); + GElf_Shdr shdr_mem_l; + GElf_Shdr *shdr_l = gelf_getshdr (scn_l, &shdr_mem_l); + if (shdr_l == NULL) + { + const char *s_l = elf_strptr (ebl->elf, ehdr->e_shstrndx, + shdr_l->sh_name); + if (s_l != NULL && ebl_debugscn_p (ebl, s_l)) + return true; + } + } + + return false; + } + + return SECTION_STRIP_P (shdr, name, remove_comment); +} diff --git a/libebl/eblsectiontypename.c b/libebl/eblsectiontypename.c new file mode 100644 index 0000000..e6857ac --- /dev/null +++ b/libebl/eblsectiontypename.c @@ -0,0 +1,103 @@ +/* Return section type name. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +const char * +ebl_section_type_name (ebl, section, buf, len) + Ebl *ebl; + int section; + char *buf; + size_t len; +{ + const char *res = ebl->section_type_name (section, buf, len); + + if (res == NULL) + { + static const char *knowntypes[] = + { +#define KNOWNSTYPE(name) [SHT_##name] = #name + KNOWNSTYPE (NULL), + KNOWNSTYPE (PROGBITS), + KNOWNSTYPE (SYMTAB), + KNOWNSTYPE (STRTAB), + KNOWNSTYPE (RELA), + KNOWNSTYPE (HASH), + KNOWNSTYPE (DYNAMIC), + KNOWNSTYPE (NOTE), + KNOWNSTYPE (NOBITS), + KNOWNSTYPE (REL), + KNOWNSTYPE (SHLIB), + KNOWNSTYPE (DYNSYM), + KNOWNSTYPE (INIT_ARRAY), + KNOWNSTYPE (FINI_ARRAY), + KNOWNSTYPE (PREINIT_ARRAY), + KNOWNSTYPE (GROUP), + KNOWNSTYPE (SYMTAB_SHNDX) + }; + + /* Handle standard names. */ + if ((size_t) section < sizeof (knowntypes) / sizeof (knowntypes[0]) + && knowntypes[section] != NULL) + res = knowntypes[section]; + /* The symbol versioning/Sun extensions. */ + else if (section >= SHT_LOSUNW && section <= SHT_HISUNW) + { + static const char *sunwtypes[] = + { +#undef KNOWNSTYPE +#define KNOWNSTYPE(name) [SHT_##name - SHT_LOSUNW] = #name + KNOWNSTYPE (SUNW_move), + KNOWNSTYPE (SUNW_COMDAT), + KNOWNSTYPE (SUNW_syminfo), + KNOWNSTYPE (GNU_verdef), + KNOWNSTYPE (GNU_verneed), + KNOWNSTYPE (GNU_versym) + }; + res = sunwtypes[section - SHT_LOSUNW]; + } + else + { + /* A few GNU additions. */ + if (section == SHT_CHECKSUM) + res = "CHECKSUM"; + else if (section == SHT_GNU_LIBLIST) + res = "GNU_LIBLIST"; + /* Handle OS-specific section names. */ + else + { + if (section >= SHT_LOOS && section <= SHT_HIOS) + snprintf (buf, len, "SHT_LOOS+%x", section - SHT_LOOS); + /* Handle processor-specific section names. */ + else if (section >= SHT_LOPROC && section <= SHT_HIPROC) + snprintf (buf, len, "SHT_LOPROC+%x", section - SHT_LOPROC); + else if ((unsigned int) section >= SHT_LOUSER + && (unsigned int) section <= SHT_HIUSER) + snprintf (buf, len, "SHT_LOUSER+%x", section - SHT_LOUSER); + else + snprintf (buf, len, "%s: %d", gettext (""), section); + + res = buf; + } + } + } + + return res; +} diff --git a/libebl/eblsegmenttypename.c b/libebl/eblsegmenttypename.c new file mode 100644 index 0000000..c59f037 --- /dev/null +++ b/libebl/eblsegmenttypename.c @@ -0,0 +1,75 @@ +/* Return segment type name. + Copyright (C) 2001, 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +const char * +ebl_segment_type_name (ebl, segment, buf, len) + Ebl *ebl; + int segment; + char *buf; + size_t len; +{ + const char *res; + + res = ebl != NULL ? ebl->segment_type_name (segment, buf, len) : NULL; + if (res == NULL) + { + static const char *ptypes[PT_NUM] = + { +#define PTYPE(name) [PT_##name] = #name + PTYPE (NULL), + PTYPE (LOAD), + PTYPE (DYNAMIC), + PTYPE (INTERP), + PTYPE (NOTE), + PTYPE (SHLIB), + PTYPE (PHDR), + PTYPE (TLS) + }; + + /* Is it one of the standard segment types? */ + if (segment >= PT_NULL && segment < PT_NUM) + res = ptypes[segment]; + else if (segment == PT_GNU_EH_FRAME) + res = "GNU_EH_FRAME"; + else if (segment == PT_GNU_STACK) + res = "GNU_STACK"; + else if (segment == PT_GNU_RELRO) + res = "GNU_RELRO"; + else if (segment == PT_SUNWBSS) + res = "SUNWBSS"; + else if (segment == PT_SUNWSTACK) + res = "SUNWSTACK"; + else + { + if (segment >= PT_LOOS && segment <= PT_HIOS) + snprintf (buf, len, "LOOS+%d", segment - PT_LOOS); + else if (segment >= PT_LOPROC && segment <= PT_HIPROC) + snprintf (buf, len, "LOPROC+%d", segment - PT_LOPROC); + else + snprintf (buf, len, "%s: %d", gettext (""), segment); + + res = buf; + } + } + + return res; +} diff --git a/libebl/eblshflagscombine.c b/libebl/eblshflagscombine.c new file mode 100644 index 0000000..7edcf4e --- /dev/null +++ b/libebl/eblshflagscombine.c @@ -0,0 +1,29 @@ +/* Return combines section header flags value. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +GElf_Word +ebl_sh_flags_combine (ebl, flags1, flags2) + Ebl *ebl; + GElf_Word flags1; + GElf_Word flags2; +{ + return ebl->sh_flags_combine (flags1, flags2); +} diff --git a/libebl/eblstrtab.c b/libebl/eblstrtab.c new file mode 100644 index 0000000..165909f --- /dev/null +++ b/libebl/eblstrtab.c @@ -0,0 +1,337 @@ +/* ELF string table handling. + Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "libebl.h" +#include + +#ifndef MIN +# define MIN(a, b) ((a) < (b) ? (a) : (b)) +#endif + + +struct Ebl_Strent +{ + const char *string; + size_t len; + struct Ebl_Strent *next; + struct Ebl_Strent *left; + struct Ebl_Strent *right; + size_t offset; + char reverse[0]; +}; + + +struct memoryblock +{ + struct memoryblock *next; + char memory[0]; +}; + + +struct Ebl_Strtab +{ + struct Ebl_Strent *root; + struct memoryblock *memory; + char *backp; + size_t left; + size_t total; + bool nullstr; + + struct Ebl_Strent null; +}; + + +/* Cache for the pagesize. We correct this value a bit so that `malloc' + is not allocating more than a page. */ +static size_t ps; + + +struct Ebl_Strtab * +ebl_strtabinit (bool nullstr) +{ + if (ps == 0) + { + ps = sysconf (_SC_PAGESIZE) - 2 * sizeof (void *); + assert (sizeof (struct memoryblock) < ps); + } + + struct Ebl_Strtab *ret + = (struct Ebl_Strtab *) calloc (1, sizeof (struct Ebl_Strtab)); + if (ret != NULL) + { + ret->nullstr = nullstr; + + if (nullstr) + { + ret->null.len = 1; + ret->null.string = ""; + } + } + + return ret; +} + + +static int +morememory (struct Ebl_Strtab *st, size_t len) +{ + if (len < ps) + len = ps; + + struct memoryblock *newmem = (struct memoryblock *) malloc (len); + if (newmem == NULL) + return 1; + + newmem->next = st->memory; + st->memory = newmem; + st->backp = newmem->memory; + st->left = len - offsetof (struct memoryblock, memory); + + return 0; +} + + +void +ebl_strtabfree (struct Ebl_Strtab *st) +{ + struct memoryblock *mb = st->memory; + + while (mb != NULL) + { + void *old = mb; + mb = mb->next; + free (old); + } + + free (st); +} + + +static struct Ebl_Strent * +newstring (struct Ebl_Strtab *st, const char *str, size_t len) +{ + /* Compute the amount of padding needed to make the structure aligned. */ + size_t align = ((__alignof__ (struct Ebl_Strent) + - (((uintptr_t) st->backp) + & (__alignof__ (struct Ebl_Strent) - 1))) + & (__alignof__ (struct Ebl_Strent) - 1)); + + /* Make sure there is enough room in the memory block. */ + if (st->left < align + sizeof (struct Ebl_Strent) + len) + { + if (morememory (st, sizeof (struct Ebl_Strent) + len)) + return NULL; + + align = 0; + } + + /* Create the reserved string. */ + struct Ebl_Strent *newstr = (struct Ebl_Strent *) (st->backp + align); + newstr->string = str; + newstr->len = len; + newstr->next = NULL; + newstr->left = NULL; + newstr->right = NULL; + newstr->offset = 0; + for (int i = len - 2; i >= 0; --i) + newstr->reverse[i] = str[len - 2 - i]; + newstr->reverse[len - 1] = '\0'; + st->backp += align + sizeof (struct Ebl_Strent) + len; + st->left -= align + sizeof (struct Ebl_Strent) + len; + + return newstr; +} + + +/* XXX This function should definitely be rewritten to use a balancing + tree algorith (AVL, red-black trees). For now a simple, correct + implementation is enough. */ +static struct Ebl_Strent ** +searchstring (struct Ebl_Strent **sep, struct Ebl_Strent *newstr) +{ + /* More strings? */ + if (*sep == NULL) + { + *sep = newstr; + return sep; + } + + /* Compare the strings. */ + int cmpres = memcmp ((*sep)->reverse, newstr->reverse, + MIN ((*sep)->len, newstr->len) - 1); + if (cmpres == 0) + /* We found a matching string. */ + return sep; + else if (cmpres > 0) + return searchstring (&(*sep)->left, newstr); + else + return searchstring (&(*sep)->right, newstr); +} + + +/* Add new string. The actual string is assumed to be permanent. */ +struct Ebl_Strent * +ebl_strtabadd (struct Ebl_Strtab *st, const char *str, size_t len) +{ + /* Compute the string length if the caller doesn't know it. */ + if (len == 0) + len = strlen (str) + 1; + + /* Make sure all "" strings get offset 0 but only if the table was + created with a special null entry in mind. */ + if (len == 1 && st->null.string != NULL) + return &st->null; + + /* Allocate memory for the new string and its associated information. */ + struct Ebl_Strent *newstr = newstring (st, str, len); + if (newstr == NULL) + return NULL; + + /* Search in the array for the place to insert the string. If there + is no string with matching prefix and no string with matching + leading substring, create a new entry. */ + struct Ebl_Strent **sep = searchstring (&st->root, newstr); + if (*sep != newstr) + { + /* This is not the same entry. This means we have a prefix match. */ + if ((*sep)->len > newstr->len) + { + /* Check whether we already know this string. */ + for (struct Ebl_Strent *subs = (*sep)->next; subs != NULL; + subs = subs->next) + if (subs->len == newstr->len) + { + /* We have an exact match with a substring. Free the memory + we allocated. */ + st->left += st->backp - (char *) newstr; + st->backp = (char *) newstr; + + return subs; + } + + /* We have a new substring. This means we don't need the reverse + string of this entry anymore. */ + st->backp -= newstr->len; + st->left += newstr->len; + + newstr->next = (*sep)->next; + (*sep)->next = newstr; + } + else if ((*sep)->len != newstr->len) + { + /* When we get here it means that the string we are about to + add has a common prefix with a string we already have but + it is longer. In this case we have to put it first. */ + st->total += newstr->len - (*sep)->len; + newstr->next = *sep; + newstr->left = (*sep)->left; + newstr->right = (*sep)->right; + *sep = newstr; + } + else + { + /* We have an exact match. Free the memory we allocated. */ + st->left += st->backp - (char *) newstr; + st->backp = (char *) newstr; + + newstr = *sep; + } + } + else + st->total += newstr->len; + + return newstr; +} + + +static void +copystrings (struct Ebl_Strent *nodep, char **freep, size_t *offsetp) +{ + if (nodep->left != NULL) + copystrings (nodep->left, freep, offsetp); + + /* Process the current node. */ + nodep->offset = *offsetp; + *freep = (char *) mempcpy (*freep, nodep->string, nodep->len); + *offsetp += nodep->len; + + for (struct Ebl_Strent *subs = nodep->next; subs != NULL; subs = subs->next) + { + assert (subs->len < nodep->len); + subs->offset = nodep->offset + nodep->len - subs->len; + assert (subs->offset != 0 || subs->string[0] == '\0'); + } + + if (nodep->right != NULL) + copystrings (nodep->right, freep, offsetp); +} + + +void +ebl_strtabfinalize (struct Ebl_Strtab *st, Elf_Data *data) +{ + size_t nulllen = st->nullstr ? 1 : 0; + + /* Fill in the information. */ + data->d_buf = malloc (st->total + nulllen); + if (data->d_buf == NULL) + abort (); + + /* The first byte must always be zero if we created the table with a + null string. */ + if (st->nullstr) + *((char *) data->d_buf) = '\0'; + + data->d_type = ELF_T_BYTE; + data->d_size = st->total + nulllen; + data->d_off = 0; + data->d_align = 1; + data->d_version = EV_CURRENT; + + /* Now run through the tree and add all the string while also updating + the offset members of the elfstrent records. */ + char *endp = (char *) data->d_buf + nulllen; + size_t copylen = nulllen; + copystrings (st->root, &endp, ©len); + assert (copylen == st->total + nulllen); +} + + +size_t +ebl_strtaboffset (struct Ebl_Strent *se) +{ + return se->offset; +} + + +const char * +ebl_string (struct Ebl_Strent *se) +{ + assert (se->string != NULL); + + return se->string; +} diff --git a/libebl/eblsymbolbindingname.c b/libebl/eblsymbolbindingname.c new file mode 100644 index 0000000..efcd250 --- /dev/null +++ b/libebl/eblsymbolbindingname.c @@ -0,0 +1,57 @@ +/* Return symbol binding name. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +const char * +ebl_symbol_binding_name (ebl, binding, buf, len) + Ebl *ebl; + int binding; + char *buf; + size_t len; +{ + const char *res; + + res = ebl != NULL ? ebl->symbol_type_name (binding, buf, len) : NULL; + if (res == NULL) + { + static const char *stb_names[STB_NUM] = + { + "LOCAL", "GLOBAL", "WEAK" + }; + + /* Standard binding? */ + if (binding < STB_NUM) + res = stb_names[binding]; + else + { + if (binding >= STB_LOPROC && binding <= STB_HIPROC) + snprintf (buf, len, "LOPROC+%d", binding - STB_LOPROC); + else if (binding >= STB_LOOS && binding <= STB_HIOS) + snprintf (buf, len, "LOOS+%d", binding - STB_LOOS); + else + snprintf (buf, len, gettext (": %d"), binding); + + res = buf; + } + } + + return res; +} diff --git a/libebl/eblsymboltypename.c b/libebl/eblsymboltypename.c new file mode 100644 index 0000000..d11aec1 --- /dev/null +++ b/libebl/eblsymboltypename.c @@ -0,0 +1,63 @@ +/* Return symbol type name. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +const char * +ebl_symbol_type_name (ebl, symbol, buf, len) + Ebl *ebl; + int symbol; + char *buf; + size_t len; +{ + const char *res; + + res = ebl != NULL ? ebl->symbol_type_name (symbol, buf, len) : NULL; + if (res == NULL) + { + static const char *stt_names[STT_NUM] = + { + [STT_NOTYPE] = "NOTYPE", + [STT_OBJECT] = "OBJECT", + [STT_FUNC] = "FUNC", + [STT_SECTION] = "SECTION", + [STT_FILE] = "FILE", + [STT_COMMON] = "COMMON", + [STT_TLS] = "TLS" + }; + + /* Standard type? */ + if (symbol < STT_NUM) + res = stt_names[symbol]; + else + { + if (symbol >= STT_LOPROC && symbol <= STT_HIPROC) + snprintf (buf, len, "LOPROC+%d", symbol - STT_LOPROC); + else if (symbol >= STT_LOOS && symbol <= STT_HIOS) + snprintf (buf, len, "LOOS+%d", symbol - STT_LOOS); + else + snprintf (buf, len, gettext (": %d"), symbol); + + res = buf; + } + } + + return res; +} diff --git a/libebl/eblwstrtab.c b/libebl/eblwstrtab.c new file mode 100644 index 0000000..8320cb5 --- /dev/null +++ b/libebl/eblwstrtab.c @@ -0,0 +1,344 @@ +/* ELF string table handling. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "libebl.h" +#include + +#ifndef MIN +# define MIN(a, b) ((a) < (b) ? (a) : (b)) +#endif + + +struct Ebl_WStrent +{ + const wchar_t *string; + size_t len; + struct Ebl_WStrent *next; + struct Ebl_WStrent *left; + struct Ebl_WStrent *right; + size_t offset; + wchar_t reverse[0]; +}; + + +struct memoryblock +{ + struct memoryblock *next; + char memory[0]; +}; + + +struct Ebl_WStrtab +{ + struct Ebl_WStrent *root; + struct memoryblock *memory; + char *backp; + size_t left; + size_t total; + bool nullstr; + + struct Ebl_WStrent null; +}; + + +/* Cache for the pagesize. We correct this value a bit so that `malloc' + is not allocating more than a page. */ +static size_t ps; + + +struct Ebl_WStrtab * +ebl_wstrtabinit (bool nullstr) +{ + struct Ebl_WStrtab *ret; + + if (ps == 0) + { + ps = sysconf (_SC_PAGESIZE) - 2 * sizeof (void *); + assert (sizeof (struct memoryblock) < ps); + } + + ret = (struct Ebl_WStrtab *) calloc (1, sizeof (struct Ebl_WStrtab)); + if (ret != NULL) + { + ret->nullstr = nullstr; + if (nullstr) + { + ret->null.len = 1; + ret->null.string = L""; + } + } + return ret; +} + + +static int +morememory (struct Ebl_WStrtab *st, size_t len) +{ + struct memoryblock *newmem; + + if (len < ps) + len = ps; + newmem = (struct memoryblock *) malloc (len); + if (newmem == NULL) + return 1; + + newmem->next = st->memory; + st->memory = newmem; + st->backp = newmem->memory; + st->left = len - offsetof (struct memoryblock, memory); + + return 0; +} + + +void +ebl_wstrtabfree (struct Ebl_WStrtab *st) +{ + struct memoryblock *mb = st->memory; + + while (mb != NULL) + { + void *old = mb; + mb = mb->next; + free (old); + } + + free (st); +} + + +static struct Ebl_WStrent * +newstring (struct Ebl_WStrtab *st, const wchar_t *str, size_t len) +{ + struct Ebl_WStrent *newstr; + size_t align; + int i; + + /* Compute the amount of padding needed to make the structure aligned. */ + align = ((__alignof__ (struct Ebl_WStrent) + - (((uintptr_t) st->backp) + & (__alignof__ (struct Ebl_WStrent) - 1))) + & (__alignof__ (struct Ebl_WStrent) - 1)); + + /* Make sure there is enough room in the memory block. */ + if (st->left < align + sizeof (struct Ebl_WStrent) + len * sizeof (wchar_t)) + { + if (morememory (st, + sizeof (struct Ebl_WStrent) + len * sizeof (wchar_t))) + return NULL; + + align = 0; + } + + /* Create the reserved string. */ + newstr = (struct Ebl_WStrent *) (st->backp + align); + newstr->string = str; + newstr->len = len; + newstr->next = NULL; + newstr->left = NULL; + newstr->right = NULL; + newstr->offset = 0; + for (i = len - 2; i >= 0; --i) + newstr->reverse[i] = str[len - 2 - i]; + newstr->reverse[len - 1] = L'\0'; + st->backp += align + sizeof (struct Ebl_WStrent) + len * sizeof (wchar_t); + st->left -= align + sizeof (struct Ebl_WStrent) + len * sizeof (wchar_t); + + return newstr; +} + + +/* XXX This function should definitely be rewritten to use a balancing + tree algorith (AVL, red-black trees). For now a simple, correct + implementation is enough. */ +static struct Ebl_WStrent ** +searchstring (struct Ebl_WStrent **sep, struct Ebl_WStrent *newstr) +{ + int cmpres; + + /* More strings? */ + if (*sep == NULL) + { + *sep = newstr; + return sep; + } + + /* Compare the strings. */ + cmpres = wmemcmp ((*sep)->reverse, newstr->reverse, + MIN ((*sep)->len, newstr->len) - 1); + if (cmpres == 0) + /* We found a matching string. */ + return sep; + else if (cmpres > 0) + return searchstring (&(*sep)->left, newstr); + else + return searchstring (&(*sep)->right, newstr); +} + + +/* Add new string. The actual string is assumed to be permanent. */ +struct Ebl_WStrent * +ebl_wstrtabadd (struct Ebl_WStrtab *st, const wchar_t *str, size_t len) +{ + struct Ebl_WStrent *newstr; + struct Ebl_WStrent **sep; + + /* Compute the string length if the caller doesn't know it. */ + if (len == 0) + len = wcslen (str) + 1; + + /* Make sure all "" strings get offset 0 but only if the table was + created with a special null entry in mind. */ + if (len == 1 && st->null.string != NULL) + return &st->null; + + /* Allocate memory for the new string and its associated information. */ + newstr = newstring (st, str, len); + if (newstr == NULL) + return NULL; + + /* Search in the array for the place to insert the string. If there + is no string with matching prefix and no string with matching + leading substring, create a new entry. */ + sep = searchstring (&st->root, newstr); + if (*sep != newstr) + { + /* This is not the same entry. This means we have a prefix match. */ + if ((*sep)->len > newstr->len) + { + struct Ebl_WStrent *subs; + + /* Check whether we already know this string. */ + for (subs = (*sep)->next; subs != NULL; subs = subs->next) + if (subs->len == newstr->len) + { + /* We have an exact match with a substring. Free the memory + we allocated. */ + st->left += st->backp - (char *) newstr; + st->backp = (char *) newstr; + + return subs; + } + + /* We have a new substring. This means we don't need the reverse + string of this entry anymore. */ + st->backp -= newstr->len; + st->left += newstr->len; + + newstr->next = (*sep)->next; + (*sep)->next = newstr; + } + else if ((*sep)->len != newstr->len) + { + /* When we get here it means that the string we are about to + add has a common prefix with a string we already have but + it is longer. In this case we have to put it first. */ + st->total += newstr->len - (*sep)->len; + newstr->next = *sep; + newstr->left = (*sep)->left; + newstr->right = (*sep)->right; + *sep = newstr; + } + else + { + /* We have an exact match. Free the memory we allocated. */ + st->left += st->backp - (char *) newstr; + st->backp = (char *) newstr; + + newstr = *sep; + } + } + else + st->total += newstr->len; + + return newstr; +} + + +static void +copystrings (struct Ebl_WStrent *nodep, wchar_t **freep, size_t *offsetp) +{ + struct Ebl_WStrent *subs; + + if (nodep->left != NULL) + copystrings (nodep->left, freep, offsetp); + + /* Process the current node. */ + nodep->offset = *offsetp; + *freep = wmempcpy (*freep, nodep->string, nodep->len); + *offsetp += nodep->len * sizeof (wchar_t); + + for (subs = nodep->next; subs != NULL; subs = subs->next) + { + assert (subs->len < nodep->len); + subs->offset = nodep->offset + nodep->len - subs->len; + assert (subs->offset != 0 || subs->string[0] == '\0'); + } + + if (nodep->right != NULL) + copystrings (nodep->right, freep, offsetp); +} + + +void +ebl_wstrtabfinalize (struct Ebl_WStrtab *st, Elf_Data *data) +{ + size_t copylen; + wchar_t *endp; + size_t nulllen = st->nullstr ? 1 : 0; + + /* Fill in the information. */ + data->d_buf = malloc ((st->total + nulllen) * sizeof (wchar_t)); + if (data->d_buf == NULL) + abort (); + + /* The first byte must always be zero if we created the table with a + null string. */ + if (st->nullstr) + *((wchar_t *) data->d_buf) = L'\0'; + + data->d_type = ELF_T_BYTE; + data->d_size = st->total + nulllen; + data->d_off = 0; + data->d_align = 1; + data->d_version = EV_CURRENT; + + /* Now run through the tree and add all the string while also updating + the offset members of the elfstrent records. */ + endp = (wchar_t *) data->d_buf + nulllen; + copylen = sizeof (wchar_t) * nulllen; + copystrings (st->root, &endp, ©len); + assert (copylen == (st->total + nulllen) * sizeof (wchar_t)); +} + + +size_t +ebl_wstrtaboffset (struct Ebl_WStrent *se) +{ + return se->offset; +} diff --git a/libebl/i386_corenote.c b/libebl/i386_corenote.c new file mode 100644 index 0000000..3a123e9 --- /dev/null +++ b/libebl/i386_corenote.c @@ -0,0 +1,162 @@ +/* i386 specific core note handling. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include + +#include + + +/* We cannot include since the definition would be for + the host platform and not always x86 as required here. */ +struct elf_prstatus + { + struct + { + int32_t si_signo; /* Signal number. */ + int32_t si_code; /* Extra code. */ + int32_t si_errno; /* Errno. */ + } pr_info; /* Info associated with signal. */ + int16_t pr_cursig; /* Current signal. */ + uint32_t pr_sigpend; /* Set of pending signals. */ + uint32_t pr_sighold; /* Set of held signals. */ + int32_t pr_pid; + int32_t pr_ppid; + int32_t pr_pgrp; + int32_t pr_sid; + struct i386_timeval + { + int32_t tv_sec; + int32_t tv_usec; + } pr_utime; /* User time. */ + struct i386_timeval pr_stime; /* System time. */ + struct i386_timeval pr_cutime; /* Cumulative user time. */ + struct i386_timeval pr_cstime; /* Cumulative system time. */ + uint32_t pr_reg[17]; /* GP registers. */ + int32_t pr_fpvalid; /* True if math copro being used. */ + }; + + +struct elf_prpsinfo + { + char pr_state; /* Numeric process state. */ + char pr_sname; /* Char for pr_state. */ + char pr_zomb; /* Zombie. */ + char pr_nice; /* Nice val. */ + uint32_t pr_flag; /* Flags. */ + uint16_t pr_uid; + uint16_t pr_gid; + int32_t pr_pid; + int32_t pr_ppid; + int32_t pr_pgrp; + int32_t pr_sid; + /* Lots missing */ + char pr_fname[16]; /* Filename of executable. */ + char pr_psargs[80]; /* Initial part of arg list. */ + }; + + +bool +i386_core_note (name, type, descsz, desc) + const char *name __attribute__ ((unused)); + uint32_t type; + uint32_t descsz; + const char *desc; +{ + bool result = false; + + switch (type) + { + case NT_PRSTATUS: + if (descsz < sizeof (struct elf_prstatus)) + /* Not enough data. */ + break; + + struct elf_prstatus *stat = (struct elf_prstatus *) desc; + + printf (" SIGINFO: signo: %" PRId32 ", code = %" PRId32 + ", errno = %" PRId32 "\n" + " signal: %" PRId16 ", pending: %08" PRIx32 + ", holding: %8" PRIx32 "\n" + " pid: %" PRId32 ", ppid = %" PRId32 ", pgrp = %" PRId32 + ", sid = %" PRId32 "\n" + " utime: %6" PRId32 ".%06" PRId32 + "s, stime: %6" PRId32 ".%06" PRId32 "s\n" + " cutime: %6" PRId32 ".%06" PRId32 + "s, cstime: %6" PRId32 ".%06" PRId32 "s\n" + " eax: %08" PRIx32 " ebx: %08" PRIx32 " ecx: %08" PRIx32 + " edx: %08" PRIx32 "\n" + " esi: %08" PRIx32 " edi: %08" PRIx32 " ebp: %08" PRIx32 + " esp: %08" PRIx32 "\n" + " eip: %08" PRIx32 " eflags: %08" PRIx32 + " original eax: %08" PRIx32 "\n" + " cs: %04" PRIx32 " ds: %04" PRIx32 " es: %04" PRIx32 + " fs: %04" PRIx32 " gs: %04" PRIx32 " ss: %04" PRIx32 "\n\n", + stat->pr_info.si_signo, + stat->pr_info.si_code, + stat->pr_info.si_errno, + stat->pr_cursig, + stat->pr_sigpend, stat->pr_sighold, + stat->pr_pid, stat->pr_ppid, stat->pr_pgrp, stat->pr_sid, + stat->pr_utime.tv_sec, stat->pr_utime.tv_usec, + stat->pr_stime.tv_sec, stat->pr_stime.tv_usec, + stat->pr_cutime.tv_sec, stat->pr_cutime.tv_usec, + stat->pr_cstime.tv_sec, stat->pr_cstime.tv_usec, + stat->pr_reg[6], stat->pr_reg[0], stat->pr_reg[1], + stat->pr_reg[2], stat->pr_reg[3], stat->pr_reg[4], + stat->pr_reg[5], stat->pr_reg[15], stat->pr_reg[12], + stat->pr_reg[14], stat->pr_reg[11], stat->pr_reg[13] & 0xffff, + stat->pr_reg[7] & 0xffff, stat->pr_reg[8] & 0xffff, + stat->pr_reg[9] & 0xffff, stat->pr_reg[10] & 0xffff, + stat->pr_reg[16]); + + /* We handled this entry. */ + result = true; + break; + + case NT_PRPSINFO: + if (descsz < sizeof (struct elf_prpsinfo)) + /* Not enough data. */ + break; + + struct elf_prpsinfo *info = (struct elf_prpsinfo *) desc; + + printf (" state: %c (%hhd), zombie: %hhd, nice: %hhd\n" + " flags: %08" PRIx32 ", uid: %" PRId16 ", gid: %" PRId16"\n" + " pid: %" PRId32 ", ppid: %" PRId32 ", pgrp: %" PRId32 + ", sid: %" PRId32 "\n" + " fname: %.16s\n" + " args: %.80s\n\n", + info->pr_sname, info->pr_state, info->pr_zomb, info->pr_nice, + info->pr_flag, info->pr_uid, info->pr_gid, + info->pr_pid, info->pr_ppid, info->pr_pgrp, info->pr_sid, + info->pr_fname, info->pr_psargs); + + /* We handled this entry. */ + result = true; + break; + + default: + break; + } + + return result; +} diff --git a/libebl/i386_destr.c b/libebl/i386_destr.c new file mode 100644 index 0000000..50c0fd4 --- /dev/null +++ b/libebl/i386_destr.c @@ -0,0 +1,27 @@ +/* Destructor for i386 specific backend library. + Copyright (C) 2000, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +void +i386_destr (bh) + Ebl *bh __attribute__ ((unused)); +{ + /* Nothing to do so far. */ +} diff --git a/libebl/i386_init.c b/libebl/i386_init.c new file mode 100644 index 0000000..264f3ef --- /dev/null +++ b/libebl/i386_init.c @@ -0,0 +1,47 @@ +/* Initialization of i386 specific backend library. + Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +const char * +i386_init (elf, machine, eh, ehlen) + Elf *elf __attribute__ ((unused)); + GElf_Half machine __attribute__ ((unused)); + Ebl *eh; + size_t ehlen; +{ + /* Check whether the Elf_BH object has a sufficent size. */ + if (ehlen < sizeof (Ebl)) + return NULL; + + /* We handle it. */ + eh->name = "Intel 80386"; + eh->reloc_type_name = i386_reloc_type_name; + eh->reloc_type_check = i386_reloc_type_check; + eh->reloc_valid_use = i386_reloc_valid_use; + eh->reloc_simple_type = i386_reloc_simple_type; + eh->gotpc_reloc_check = i386_gotpc_reloc_check; + eh->core_note = i386_core_note; + generic_debugscn_p = eh->debugscn_p; + eh->debugscn_p = i386_debugscn_p; + eh->copy_reloc_p = i386_copy_reloc_p; + eh->destr = i386_destr; + + return MODVERSION; +} diff --git a/libebl/i386_symbol.c b/libebl/i386_symbol.c new file mode 100644 index 0000000..e9eded2 --- /dev/null +++ b/libebl/i386_symbol.c @@ -0,0 +1,163 @@ +/* i386 specific symbolic name handling. + Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include + + +/* Return of the backend. */ +const char * +i386_backend_name (void) +{ + return "i386"; +} + + +/* Relocation mapping table. */ +static struct +{ + const char *name; + enum { both = 0, rel = 1, exec = 2 } appear; +} reloc_map_table[] = + { + [R_386_NONE] = { "R_386_NONE", both }, + [R_386_32] = { "R_386_32", both }, + [R_386_PC32] = { "R_386_PC32", rel }, + [R_386_GOT32] = { "R_386_GOT32", rel }, + [R_386_PLT32] = { "R_386_PLT32", rel }, + [R_386_COPY] = { "R_386_COPY", exec }, + [R_386_GLOB_DAT] = { "R_386_GLOB_DAT", exec }, + [R_386_JMP_SLOT] = { "R_386_JMP_SLOT", exec }, + [R_386_RELATIVE] = { "R_386_RELATIVE", exec }, + [R_386_GOTOFF] = { "R_386_GOTOFF", rel }, + [R_386_GOTPC] = { "R_386_GOTPC", rel }, + [R_386_32PLT] = { "R_386_32PLT", rel }, + [R_386_TLS_TPOFF] = { "R_386_TLS_TPOFF", rel }, + [R_386_TLS_IE] = { "R_386_TLS_IE", rel }, + [R_386_TLS_GOTIE] = { "R_386_TLS_GOTIE", rel }, + [R_386_TLS_LE] = { "R_386_TLS_LE", rel }, + [R_386_TLS_GD] = { "R_386_TLS_GD", rel }, + [R_386_TLS_LDM] = { "R_386_TLS_LDM", rel }, + [R_386_16] = { "R_386_16", rel }, + [R_386_PC16] = { "R_386_PC16", rel }, + [R_386_8] = { "R_386_8", rel }, + [R_386_PC8] = { "R_386_PC8", rel }, + [R_386_TLS_GD_32] = { "R_386_TLS_GD_32", rel }, + [R_386_TLS_GD_PUSH] = { "R_386_TLS_GD_PUSH", rel }, + [R_386_TLS_GD_CALL] = { "R_386_TLS_GD_CALL", rel }, + [R_386_TLS_GD_POP] = { "R_386_TLS_GD_POP", rel }, + [R_386_TLS_LDM_32] = { "R_386_TLS_LDM_32", rel }, + [R_386_TLS_LDM_PUSH] = { "R_386_TLS_LDM_PUSH", rel }, + [R_386_TLS_LDM_CALL] = { "R_386_TLS_LDM_CALL", rel }, + [R_386_TLS_LDM_POP] = { "R_386_TLS_LDM_POP", rel }, + [R_386_TLS_LDO_32] = { "R_386_TLS_LDO_32", rel }, + [R_386_TLS_IE_32] = { "R_386_TLS_IE_32", rel }, + [R_386_TLS_LE_32] = { "R_386_TLS_LE_32", rel }, + [R_386_TLS_DTPMOD32] = { "R_386_TLS_DTPMOD32", rel }, + [R_386_TLS_DTPOFF32] = { "R_386_TLS_DTPOFF32", rel }, + [R_386_TLS_TPOFF32] = { "R_386_TLS_TPOFF32", rel } + }; + + +/* Determine relocation type string for x86. */ +const char * +i386_reloc_type_name (int type, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + if (type < 0 || type >= R_386_NUM) + return NULL; + + return reloc_map_table[type].name; +} + + +/* Check for correct relocation type. */ +bool +i386_reloc_type_check (int type) +{ + return (type >= R_386_NONE && type < R_386_NUM + && reloc_map_table[type].name != NULL) ? true : false; +} + + +/* Check for correct relocation type use. */ +bool +i386_reloc_valid_use (Elf *elf, int type) +{ + if (type < R_386_NONE || type >= R_386_NUM + || reloc_map_table[type].name == NULL) + return false; + + Elf32_Ehdr *ehdr = elf32_getehdr (elf); + assert (ehdr != NULL); + + if (reloc_map_table[type].appear == rel) + return ehdr->e_type == ET_REL; + + if (reloc_map_table[type].appear == exec) + return ehdr->e_type != ET_REL; + + assert (reloc_map_table[type].appear == both); + return true; +} + + +/* Return true if the symbol type is that referencing the GOT. */ +bool +i386_gotpc_reloc_check (Elf *elf __attribute__ ((unused)), int type) +{ + return type == R_386_GOTPC; +} + +/* Check for the simple reloc types. */ +Elf_Type +i386_reloc_simple_type (Elf *elf __attribute__ ((unused)), int type) +{ + switch (type) + { + case R_386_32: + return ELF_T_SWORD; + case R_386_16: + return ELF_T_HALF; + case R_386_8: + return ELF_T_BYTE; + default: + return ELF_T_NUM; + } +} + +/* Check section name for being that of a debug informatino section. */ +bool (*generic_debugscn_p) (const char *); +bool +i386_debugscn_p (const char *name) +{ + return (generic_debugscn_p (name) + || strcmp (name, ".stab") == 0 + || strcmp (name, ".stabstr") == 0); +} + +/* Check whether given relocation is a copy relocation. */ +bool +i386_copy_reloc_p (int reloc) +{ + return reloc == R_386_COPY; +} diff --git a/libebl/ia64_destr.c b/libebl/ia64_destr.c new file mode 100644 index 0000000..cb105f6 --- /dev/null +++ b/libebl/ia64_destr.c @@ -0,0 +1,27 @@ +/* Destructor for IA-64 specific backend library. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +void +ia64_destr (bh) + Ebl *bh __attribute__ ((unused)); +{ + /* Nothing to do so far. */ +} diff --git a/libebl/ia64_init.c b/libebl/ia64_init.c new file mode 100644 index 0000000..3cafe5d --- /dev/null +++ b/libebl/ia64_init.c @@ -0,0 +1,43 @@ +/* Initialization of IA-64 specific backend library. + Copyright (C) 2002, 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +const char * +ia64_init (elf, machine, eh, ehlen) + Elf *elf __attribute__ ((unused)); + GElf_Half machine __attribute__ ((unused)); + Ebl *eh; + size_t ehlen; +{ + /* Check whether the Elf_BH object has a sufficent size. */ + if (ehlen < sizeof (Ebl)) + return NULL; + + /* We handle it. */ + eh->name = "Intel IA-64"; + eh->reloc_type_name = ia64_reloc_type_name; + eh->reloc_type_check = ia64_reloc_type_check; + eh->segment_type_name = ia64_segment_type_name; + eh->dynamic_tag_name = ia64_dynamic_tag_name; + eh->copy_reloc_p = ia64_copy_reloc_p; + eh->destr = ia64_destr; + + return MODVERSION; +} diff --git a/libebl/ia64_symbol.c b/libebl/ia64_symbol.c new file mode 100644 index 0000000..77ced76 --- /dev/null +++ b/libebl/ia64_symbol.c @@ -0,0 +1,187 @@ +/* IA-64 specific symbolic name handling. + Copyright (C) 2002, 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +/* Return of the backend. */ +const char * +ia64_backend_name (void) +{ + return "ia64"; +} + + +/* Relocation mapping table. */ +static const char *reloc_map_table[] = + { + [R_IA64_NONE] = "R_IA64_NONE", + [R_IA64_IMM14] = "R_IA64_IMM14", + [R_IA64_IMM22] = "R_IA64_IMM22", + [R_IA64_IMM64] = "R_IA64_IMM64", + [R_IA64_DIR32MSB] = "R_IA64_DIR32MSB", + [R_IA64_DIR32LSB] = "R_IA64_DIR32LSB", + [R_IA64_DIR64MSB] = "R_IA64_DIR64MSB", + [R_IA64_DIR64LSB] = "R_IA64_DIR64LSB", + [R_IA64_GPREL22] = "R_IA64_GPREL22", + [R_IA64_GPREL64I] = "R_IA64_GPREL64I", + [R_IA64_GPREL32MSB] = "R_IA64_GPREL32MSB", + [R_IA64_GPREL32LSB] = "R_IA64_GPREL32LSB", + [R_IA64_GPREL64MSB] = "R_IA64_GPREL64MSB", + [R_IA64_GPREL64LSB] = "R_IA64_GPREL64LSB", + [R_IA64_LTOFF22] = "R_IA64_LTOFF22", + [R_IA64_LTOFF64I] = "R_IA64_LTOFF64I", + [R_IA64_PLTOFF22] = "R_IA64_PLTOFF22", + [R_IA64_PLTOFF64I] = "R_IA64_PLTOFF64I", + [R_IA64_PLTOFF64MSB] = "R_IA64_PLTOFF64MSB", + [R_IA64_PLTOFF64LSB] = "R_IA64_PLTOFF64LSB", + [R_IA64_FPTR64I] = "R_IA64_FPTR64I", + [R_IA64_FPTR32MSB] = "R_IA64_FPTR32MSB", + [R_IA64_FPTR32LSB] = "R_IA64_FPTR32LSB", + [R_IA64_FPTR64MSB] = "R_IA64_FPTR64MSB", + [R_IA64_FPTR64LSB] = "R_IA64_FPTR64LSB", + [R_IA64_PCREL60B] = "R_IA64_PCREL60B", + [R_IA64_PCREL21B] = "R_IA64_PCREL21B", + [R_IA64_PCREL21M] = "R_IA64_PCREL21M", + [R_IA64_PCREL21F] = "R_IA64_PCREL21F", + [R_IA64_PCREL32MSB] = "R_IA64_PCREL32MSB", + [R_IA64_PCREL32LSB] = "R_IA64_PCREL32LSB", + [R_IA64_PCREL64MSB] = "R_IA64_PCREL64MSB", + [R_IA64_PCREL64LSB] = "R_IA64_PCREL64LSB", + [R_IA64_LTOFF_FPTR22] = "R_IA64_LTOFF_FPTR22", + [R_IA64_LTOFF_FPTR64I] = "R_IA64_LTOFF_FPTR64I", + [R_IA64_LTOFF_FPTR32MSB] = "R_IA64_LTOFF_FPTR32MSB", + [R_IA64_LTOFF_FPTR32LSB] = "R_IA64_LTOFF_FPTR32LSB", + [R_IA64_LTOFF_FPTR64MSB] = "R_IA64_LTOFF_FPTR64MSB", + [R_IA64_LTOFF_FPTR64LSB] = "R_IA64_LTOFF_FPTR64LSB", + [R_IA64_SEGREL32MSB] = "R_IA64_SEGREL32MSB", + [R_IA64_SEGREL32LSB] = "R_IA64_SEGREL32LSB", + [R_IA64_SEGREL64MSB] = "R_IA64_SEGREL64MSB", + [R_IA64_SEGREL64LSB] = "R_IA64_SEGREL64LSB", + [R_IA64_SECREL32MSB] = "R_IA64_SECREL32MSB", + [R_IA64_SECREL32LSB] = "R_IA64_SECREL32LSB", + [R_IA64_SECREL64MSB] = "R_IA64_SECREL64MSB", + [R_IA64_SECREL64LSB] = "R_IA64_SECREL64LSB", + [R_IA64_REL32MSB] = "R_IA64_REL32MSB", + [R_IA64_REL32LSB] = "R_IA64_REL32LSB", + [R_IA64_REL64MSB] = "R_IA64_REL64MSB", + [R_IA64_REL64LSB] = "R_IA64_REL64LSB", + [R_IA64_LTV32MSB] = "R_IA64_LTV32MSB", + [R_IA64_LTV32LSB] = "R_IA64_LTV32LSB", + [R_IA64_LTV64MSB] = "R_IA64_LTV64MSB", + [R_IA64_LTV64LSB] = "R_IA64_LTV64LSB", + [R_IA64_PCREL21BI] = "R_IA64_PCREL21BI", + [R_IA64_PCREL22] = "R_IA64_PCREL22", + [R_IA64_PCREL64I] = "R_IA64_PCREL64I", + [R_IA64_IPLTMSB] = "R_IA64_IPLTMSB", + [R_IA64_IPLTLSB] = "R_IA64_IPLTLSB", + [R_IA64_COPY] = "R_IA64_COPY", + [R_IA64_SUB] = "R_IA64_SUB", + [R_IA64_LTOFF22X] = "R_IA64_LTOFF22X", + [R_IA64_LDXMOV] = "R_IA64_LDXMOV", + [R_IA64_TPREL14] = "R_IA64_TPREL14", + [R_IA64_TPREL22] = "R_IA64_TPREL22", + [R_IA64_TPREL64I] = "R_IA64_TPREL64I", + [R_IA64_TPREL64MSB] = "R_IA64_TPREL64MSB", + [R_IA64_TPREL64LSB] = "R_IA64_TPREL64LSB", + [R_IA64_LTOFF_TPREL22] = "R_IA64_LTOFF_TPREL22", + [R_IA64_DTPMOD64MSB] = "R_IA64_DTPMOD64MSB", + [R_IA64_DTPMOD64LSB] = "R_IA64_DTPMOD64LSB", + [R_IA64_LTOFF_DTPMOD22] = "R_IA64_LTOFF_DTPMOD22", + [R_IA64_DTPREL14] = "R_IA64_DTPREL14", + [R_IA64_DTPREL22] = "R_IA64_DTPREL22", + [R_IA64_DTPREL64I] = "R_IA64_DTPREL64I", + [R_IA64_DTPREL32MSB] = "R_IA64_DTPREL32MSB", + [R_IA64_DTPREL32LSB] = "R_IA64_DTPREL32LSB", + [R_IA64_DTPREL64MSB] = "R_IA64_DTPREL64MSB", + [R_IA64_DTPREL64LSB] = "R_IA64_DTPREL64LSB", + [R_IA64_LTOFF_DTPREL22] = "R_IA64_LTOFF_DTPREL22" + }; + + +/* Determine relocation type string for IA-64. */ +const char * +ia64_reloc_type_name (int type, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + if (type < 0 + || ((size_t) type + >= sizeof (reloc_map_table) / sizeof (reloc_map_table[0]))) + return NULL; + + return reloc_map_table[type]; +} + + +/* Check for correct relocation type. */ +bool +ia64_reloc_type_check (int type) +{ + return (type >= R_IA64_NONE + && ((size_t) type + < sizeof (reloc_map_table) / sizeof (reloc_map_table[0])) + && reloc_map_table[type] != NULL) ? true : false; +} + + +const char * +ia64_segment_type_name (int segment, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + switch (segment) + { + case PT_IA_64_ARCHEXT: + return "IA_64_ARCHEXT"; + case PT_IA_64_UNWIND: + return "IA_64_UNWIND"; + case PT_IA_64_HP_OPT_ANOT: + return "IA_64_HP_OPT_ANOT"; + case PT_IA_64_HP_HSL_ANOT: + return "IA_64_HP_HSL_ANOT"; + case PT_IA_64_HP_STACK: + return "IA_64_HP_STACK"; + default: + break; + } + return NULL; +} + + +const char * +ia64_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + switch (tag) + { + case DT_IA_64_PLT_RESERVE: + return "IA_64_PLT_RESERVE"; + default: + break; + } + return NULL; +} + +/* Check whether given relocation is a copy relocation. */ +bool +ia64_copy_reloc_p (int reloc) +{ + return reloc == R_IA64_COPY; +} diff --git a/libebl/libebl.h b/libebl/libebl.h new file mode 100644 index 0000000..aff9ca5 --- /dev/null +++ b/libebl/libebl.h @@ -0,0 +1,208 @@ +/* Interface for libebl. + Copyright (C) 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBL_H +#define _LIBEBL_H 1 + +#include +#include +#include +#include + +#include + + +/* Opaque type for the handle. */ +typedef struct ebl Ebl; + + +/* Get backend handle for object associated with ELF handle. */ +extern Ebl *ebl_openbackend (Elf *elf); +/* Similar but without underlying ELF file. */ +extern Ebl *ebl_openbackend_machine (GElf_Half machine); +/* Similar but with emulation name given. */ +extern Ebl *ebl_openbackend_emulation (const char *emulation); + +/* Free resources allocated for backend handle. */ +extern void ebl_closebackend (Ebl *bh); + + +/* Function to call the callback functions including default ELF + handling. */ + +/* Return backend name. */ +extern const char *ebl_backend_name (Ebl *ebl); + +/* Return relocation type name. */ +extern const char *ebl_object_type_name (Ebl *ebl, int object, + char *buf, size_t len); + +/* Return relocation type name. */ +extern const char *ebl_reloc_type_name (Ebl *ebl, int reloc, + char *buf, size_t len); + +/* Check relocation type. */ +extern bool ebl_reloc_type_check (Ebl *ebl, int reloc); + +/* Check relocation type use. */ +extern bool ebl_reloc_valid_use (Ebl *ebl, int reloc); + +/* Check if relocation type is for simple absolute relocations. + Return ELF_T_{BYTE,HALF,SWORD,SXWORD} for a simple type, else ELF_T_NUM. */ +extern Elf_Type ebl_reloc_simple_type (Ebl *ebl, int reloc); + +/* Return true if the symbol type is that referencing the GOT. E.g., + R_386_GOTPC. */ +extern bool ebl_gotpc_reloc_check (Ebl *ebl, int reloc); + +/* Return segment type name. */ +extern const char *ebl_segment_type_name (Ebl *ebl, int segment, + char *buf, size_t len); + +/* Return section type name. */ +extern const char *ebl_section_type_name (Ebl *ebl, int section, + char *buf, size_t len); + +/* Return section name. */ +extern const char *ebl_section_name (Ebl *ebl, int section, int xsection, + char *buf, size_t len, + const char *scnnames[], size_t shnum); + +/* Return machine flag names. */ +extern const char *ebl_machine_flag_name (Ebl *ebl, GElf_Word flags, + char *buf, size_t len); + +/* Check whether machine flag is valid. */ +extern bool ebl_machine_flag_check (Ebl *ebl, GElf_Word flags); + +/* Return symbol type name. */ +extern const char *ebl_symbol_type_name (Ebl *ebl, int symbol, + char *buf, size_t len); + +/* Return symbol binding name. */ +extern const char *ebl_symbol_binding_name (Ebl *ebl, int binding, + char *buf, size_t len); + +/* Return dynamic tag name. */ +extern const char *ebl_dynamic_tag_name (Ebl *ebl, int64_t tag, + char *buf, size_t len); + +/* Check dynamic tag. */ +extern bool ebl_dynamic_tag_check (Ebl *ebl, int64_t tag); + +/* Return combined section header flags value. */ +extern GElf_Word ebl_sh_flags_combine (Ebl *ebl, GElf_Word flags1, + GElf_Word flags2); + +/* Return symbolic representation of OS ABI. */ +extern const char *ebl_osabi_name (Ebl *ebl, int osabi, char *buf, size_t len); + + +/* Return name of the note section type for a core file. */ +extern const char *ebl_core_note_type_name (Ebl *ebl, uint32_t type, char *buf, + size_t len); + +/* Return name of the note section type for an object file. */ +extern const char *ebl_object_note_type_name (Ebl *ebl, uint32_t type, + char *buf, size_t len); + +/* Print information about core note if available. */ +extern void ebl_core_note (Ebl *ebl, const char *name, uint32_t type, + uint32_t descsz, const char *desc); + +/* Print information about object note if available. */ +extern void ebl_object_note (Ebl *ebl, const char *name, uint32_t type, + uint32_t descsz, const char *desc); + +/* Check section name for being that of a debug informatino section. */ +extern bool ebl_debugscn_p (Ebl *ebl, const char *name); + +/* Check whether given relocation is a copy relocation. */ +extern bool ebl_copy_reloc_p (Ebl *ebl, int reloc); + + +/* CHeck whether section should be stripped. */ +extern bool ebl_section_strip_p (Ebl *ebl, const GElf_Ehdr *ehdr, + const GElf_Shdr *shdr, const char *name, + bool remove_comment, bool only_remove_debug); + + +/* ELF string table handling. */ +struct Ebl_Strtab; +struct Ebl_Strent; + +/* Create new ELF string table object in memory. */ +extern struct Ebl_Strtab *ebl_strtabinit (bool nullstr); + +/* Free resources allocated for ELF string table ST. */ +extern void ebl_strtabfree (struct Ebl_Strtab *st); + +/* Add string STR (length LEN is != 0) to ELF string table ST. */ +extern struct Ebl_Strent *ebl_strtabadd (struct Ebl_Strtab *st, + const char *str, size_t len); + +/* Finalize string table ST and store size and memory location information + in DATA. */ +extern void ebl_strtabfinalize (struct Ebl_Strtab *st, Elf_Data *data); + +/* Get offset in string table for string associated with SE. */ +extern size_t ebl_strtaboffset (struct Ebl_Strent *se); + +/* Return the string associated with SE. */ +extern const char *ebl_string (struct Ebl_Strent *se); + + +/* ELF wide char string table handling. */ +struct Ebl_WStrtab; +struct Ebl_WStrent; + +/* Create new ELF wide char string table object in memory. */ +extern struct Ebl_WStrtab *ebl_wstrtabinit (bool nullstr); + +/* Free resources allocated for ELF wide char string table ST. */ +extern void ebl_wstrtabfree (struct Ebl_WStrtab *st); + +/* Add string STR (length LEN is != 0) to ELF string table ST. */ +extern struct Ebl_WStrent *ebl_wstrtabadd (struct Ebl_WStrtab *st, + const wchar_t *str, size_t len); + +/* Finalize string table ST and store size and memory location information + in DATA. */ +extern void ebl_wstrtabfinalize (struct Ebl_WStrtab *st, Elf_Data *data); + +/* Get offset in wide char string table for string associated with SE. */ +extern size_t ebl_wstrtaboffset (struct Ebl_WStrent *se); + + +/* Generic string table handling. */ +struct Ebl_GStrtab; +struct Ebl_GStrent; + +/* Create new string table object in memory. */ +extern struct Ebl_GStrtab *ebl_gstrtabinit (unsigned int width, bool nullstr); + +/* Free resources allocated for string table ST. */ +extern void ebl_gstrtabfree (struct Ebl_GStrtab *st); + +/* Add string STR (length LEN is != 0) to string table ST. */ +extern struct Ebl_GStrent *ebl_gstrtabadd (struct Ebl_GStrtab *st, + const char *str, size_t len); + +/* Finalize string table ST and store size and memory location information + in DATA. */ +extern void ebl_gstrtabfinalize (struct Ebl_GStrtab *st, Elf_Data *data); + +/* Get offset in wide char string table for string associated with SE. */ +extern size_t ebl_gstrtaboffset (struct Ebl_GStrent *se); + +#endif /* libebl.h */ diff --git a/libebl/libeblP.h b/libebl/libeblP.h new file mode 100644 index 0000000..21bb8ff --- /dev/null +++ b/libebl/libeblP.h @@ -0,0 +1,118 @@ +/* Internal definitions for interface for libebl. + Copyright (C) 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBLP_H +#define _LIBEBLP_H 1 + +#include +#include +#include + + +/* Backend handle. */ +struct ebl +{ + /* Machine name. */ + const char *name; + + /* Emulation name. */ + const char *emulation; + + /* The libelf handle (if known). */ + Elf *elf; + + /* Return symbol representaton of object file type. */ + const char *(*object_type_name) (int, char *, size_t); + + /* Return symbolic representation of relocation type. */ + const char *(*reloc_type_name) (int, char *, size_t); + + /* Check relocation type. */ + bool (*reloc_type_check) (int); + + /* Check if relocation type is for simple absolute relocations. */ + Elf_Type (*reloc_simple_type) (Elf *, int); + + /* Check relocation type use. */ + bool (*reloc_valid_use) (Elf *, int); + + /* Return true if the symbol type is that referencing the GOT. */ + bool (*gotpc_reloc_check) (Elf *, int); + + /* Return symbolic representation of segment type. */ + const char *(*segment_type_name) (int, char *, size_t); + + /* Return symbolic representation of section type. */ + const char *(*section_type_name) (int, char *, size_t); + + /* Return section name. */ + const char *(*section_name) (int, int, char *, size_t); + + /* Return next machine flag name. */ + const char *(*machine_flag_name) (GElf_Word *); + + /* Check whether machine flags are valid. */ + bool (*machine_flag_check) (GElf_Word); + + /* Return symbolic representation of symbol type. */ + const char *(*symbol_type_name) (int, char *, size_t); + + /* Return symbolic representation of symbol binding. */ + const char *(*symbol_binding_name) (int, char *, size_t); + + /* Return symbolic representation of dynamic tag. */ + const char *(*dynamic_tag_name) (int64_t, char *, size_t); + + /* Check dynamic tag. */ + bool (*dynamic_tag_check) (int64_t); + + /* Combine section header flags values. */ + GElf_Word (*sh_flags_combine) (GElf_Word, GElf_Word); + + /* Return symbolic representation of OS ABI. */ + const char *(*osabi_name) (int, char *, size_t); + + /* Name of a note entry type for core files. */ + const char *(*core_note_type_name) (uint32_t, char *, size_t); + + /* Name of a note entry type for object files. */ + const char *(*object_note_type_name) (uint32_t, char *, size_t); + + /* Handle core note. */ + bool (*core_note) (const char *, uint32_t, uint32_t, const char *); + + /* Handle object file note. */ + bool (*object_note) (const char *, uint32_t, uint32_t, const char *); + + /* Check section name for being that of a debug informatino section. */ + bool (*debugscn_p) (const char *); + + /* Check whether given relocation is a copy relocation. */ + bool (*copy_reloc_p) (int); + + /* Destructor for ELF backend handle. */ + void (*destr) (struct ebl *); + + /* Internal data. */ + void *dlhandle; +}; + + +/* Type of the initialization functions in the backend modules. */ +typedef const char *(*ebl_bhinit_t) (Elf *, GElf_Half, Ebl *, size_t); + + +/* gettext helper macros. */ +#define _(Str) dgettext ("elfutils", Str) + +#endif /* libeblP.h */ diff --git a/libebl/libebl_alpha.h b/libebl/libebl_alpha.h new file mode 100644 index 0000000..7990d99 --- /dev/null +++ b/libebl/libebl_alpha.h @@ -0,0 +1,37 @@ +/* Interface for libebl_alpha module. + Copyright (C) 2002, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBL_ALPHA_H +#define _LIBEBL_ALPHA_H 1 + +#include + + +/* Constructor. */ +extern const char *alpha_init (Elf *elf, GElf_Half machine, Ebl *eh, + size_t ehlen); + +/* Destructor. */ +extern void alpha_destr (Ebl *bh); + + +/* Function to get relocation type name. */ +extern const char *alpha_reloc_type_name (int type, char *buf, size_t len); + +/* Check relocation type. */ +extern bool alpha_reloc_type_check (int type); + +/* Check whether given relocation is a copy relocation. */ +extern bool alpha_copy_reloc_p (int reloc); + +#endif /* libebl_alpha.h */ diff --git a/libebl/libebl_alpha.map b/libebl/libebl_alpha.map new file mode 100644 index 0000000..aa66ad7 --- /dev/null +++ b/libebl/libebl_alpha.map @@ -0,0 +1,11 @@ +ELFUTILS_1.0 { + global: + alpha_backend_name; + alpha_destr; + alpha_init; + alpha_reloc_type_check; + alpha_reloc_type_name; + + local: + *; +}; diff --git a/libebl/libebl_arm.h b/libebl/libebl_arm.h new file mode 100644 index 0000000..18bb99c --- /dev/null +++ b/libebl/libebl_arm.h @@ -0,0 +1,37 @@ +/* Interface for libebl_arm module. + Copyright (C) 2002, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBL_ARM_H +#define _LIBEBL_ARM_H 1 + +#include + + +/* Constructor. */ +extern const char *arm_init (Elf *elf, GElf_Half machine, Ebl *eh, + size_t ehlen); + +/* Destructor. */ +extern void arm_destr (Ebl *bh); + + +/* Function to get relocation type name. */ +extern const char *arm_reloc_type_name (int type, char *buf, size_t len); + +/* Check relocation type. */ +extern bool arm_reloc_type_check (int type); + +/* Check whether given relocation is a copy relocation. */ +extern bool arm_copy_reloc_p (int reloc); + +#endif /* libebl_arm.h */ diff --git a/libebl/libebl_arm.map b/libebl/libebl_arm.map new file mode 100644 index 0000000..d389526 --- /dev/null +++ b/libebl/libebl_arm.map @@ -0,0 +1,11 @@ +ELFUTILS_1.0 { + global: + arm_backend_name; + arm_destr; + arm_init; + arm_reloc_type_check; + arm_reloc_type_name; + + local: + *; +}; diff --git a/libebl/libebl_i386.h b/libebl/libebl_i386.h new file mode 100644 index 0000000..ef2b319 --- /dev/null +++ b/libebl/libebl_i386.h @@ -0,0 +1,54 @@ +/* Interface for libebl_i386 module. + Copyright (C) 2000, 2001, 2002, 2003, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBL_I386_H +#define _LIBEBL_I386_H 1 + +#include + + +/* Constructor. */ +extern const char *i386_init (Elf *elf, GElf_Half machine, Ebl *eh, + size_t ehlen); + +/* Destructor. */ +extern void i386_destr (Ebl *bh); + + +/* Function to get relocation type name. */ +extern const char *i386_reloc_type_name (int type, char *buf, size_t len); + +/* Check relocation type. */ +extern bool i386_reloc_type_check (int type); + +/* Check relocation type use. */ +extern bool i386_reloc_valid_use (Elf *elf, int type); + +/* Check for the simple reloc types. */ +extern Elf_Type i386_reloc_simple_type (Elf *elf, int type); + +/* Check relocation type use. */ +extern bool i386_gotpc_reloc_check (Elf *elf, int type); + +/* Code note handling. */ +extern bool i386_core_note (const char *name, uint32_t type, uint32_t descsz, + const char *desc); + +/* Check section name for being that of a debug informatino section. */ +extern bool i386_debugscn_p (const char *name); +extern bool (*generic_debugscn_p) (const char *); + +/* Check whether given relocation is a copy relocation. */ +extern bool i386_copy_reloc_p (int reloc); + +#endif /* libebl_i386.h */ diff --git a/libebl/libebl_i386.map b/libebl/libebl_i386.map new file mode 100644 index 0000000..d0c910c --- /dev/null +++ b/libebl/libebl_i386.map @@ -0,0 +1,14 @@ +ELFUTILS_1.0 { + global: + i386_backend_name; + i386_core_note; + i386_destr; + i386_init; + i386_reloc_type_check; + i386_reloc_type_name; + i386_reloc_valid_use; + i386_reloc_simple_type; + + local: + *; +}; diff --git a/libebl/libebl_ia64.h b/libebl/libebl_ia64.h new file mode 100644 index 0000000..8dea650 --- /dev/null +++ b/libebl/libebl_ia64.h @@ -0,0 +1,43 @@ +/* Interface for libebl_ia64 module. + Copyright (C) 2002, 2003, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBL_IA64_H +#define _LIBEBL_IA64_H 1 + +#include + + +/* Constructor. */ +extern const char *ia64_init (Elf *elf, GElf_Half machine, Ebl *eh, + size_t ehlen); + +/* Destructor. */ +extern void ia64_destr (Ebl *bh); + + +/* Function to get relocation type name. */ +extern const char *ia64_reloc_type_name (int type, char *buf, size_t len); + +/* Check relocation type. */ +extern bool ia64_reloc_type_check (int type); + +/* Name of segment type. */ +extern const char *ia64_segment_type_name (int segment, char *buf, size_t len); + +/* Name of dynamic tag. */ +extern const char *ia64_dynamic_tag_name (int64_t tag, char *buf, size_t len); + +/* Check whether given relocation is a copy relocation. */ +extern bool ia64_copy_reloc_p (int reloc); + +#endif /* libebl_ia64.h */ diff --git a/libebl/libebl_ia64.map b/libebl/libebl_ia64.map new file mode 100644 index 0000000..f67042c --- /dev/null +++ b/libebl/libebl_ia64.map @@ -0,0 +1,11 @@ +ELFUTILS_1.0 { + global: + ia64_backend_name; + ia64_destr; + ia64_init; + ia64_reloc_type_check; + ia64_reloc_type_name; + + local: + *; +}; diff --git a/libebl/libebl_ppc.h b/libebl/libebl_ppc.h new file mode 100644 index 0000000..1e646d4 --- /dev/null +++ b/libebl/libebl_ppc.h @@ -0,0 +1,47 @@ +/* Interface for libebl_PPC module. + Copyright (C) 2004, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBL_PPC_H +#define _LIBEBL_PPC_H 1 + +#include + + +/* Constructor. */ +extern const char *ppc_init (Elf *elf, GElf_Half machine, Ebl *eh, + size_t ehlen); + +/* Destructor. */ +extern void ppc_destr (Ebl *bh); + + +/* Function to get relocation type name. */ +extern const char *ppc_reloc_type_name (int type, char *buf, size_t len); + +/* Check relocation type. */ +extern bool ppc_reloc_type_check (int type); + +/* Check relocation type use. */ +extern bool ppc_reloc_valid_use (Elf *elf, int type); + +/* Check for the simple reloc types. */ +extern Elf_Type ppc_reloc_simple_type (Elf *elf, int type); + +/* Code note handling. */ +extern bool ppc_core_note (const char *name, uint32_t type, uint32_t descsz, + const char *desc); + +/* Check whether given relocation is a copy relocation. */ +extern bool ppc_copy_reloc_p (int reloc); + +#endif /* libebl_ppc.h */ diff --git a/libebl/libebl_ppc.map b/libebl/libebl_ppc.map new file mode 100644 index 0000000..3d49c0b --- /dev/null +++ b/libebl/libebl_ppc.map @@ -0,0 +1,12 @@ +ELFUTILS_1.0 { + global: + ppc_backend_name; + ppc_destr; + ppc_init; + ppc_reloc_type_check; + ppc_reloc_type_name; + ppc_reloc_simple_type; + + local: + *; +}; diff --git a/libebl/libebl_ppc64.h b/libebl/libebl_ppc64.h new file mode 100644 index 0000000..e737c56 --- /dev/null +++ b/libebl/libebl_ppc64.h @@ -0,0 +1,50 @@ +/* Interface for libebl_PPC64 module. + Copyright (C) 2004, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBL_PPC64_H +#define _LIBEBL_PPC64_H 1 + +#include + + +/* Constructor. */ +extern const char *ppc64_init (Elf *elf, GElf_Half machine, Ebl *eh, + size_t ehlen); + +/* Destructor. */ +extern void ppc64_destr (Ebl *bh); + + +/* Function to get relocation type name. */ +extern const char *ppc64_reloc_type_name (int type, char *buf, size_t len); + +/* Check relocation type. */ +extern bool ppc64_reloc_type_check (int type); + +/* Check relocation type use. */ +extern bool ppc64_reloc_valid_use (Elf *elf, int type); + +/* Check for the simple reloc types. */ +extern Elf_Type ppc64_reloc_simple_type (Elf *elf, int type); + +/* Code note handling. */ +extern bool ppc64_core_note (const char *name, uint32_t type, uint32_t descsz, + const char *desc); + +/* Name of dynamic tag. */ +extern const char *ppc64_dynamic_tag_name (int64_t tag, char *buf, size_t len); + +/* Check whether given relocation is a copy relocation. */ +extern bool ppc64_copy_reloc_p (int reloc); + +#endif /* libebl_ppc.h */ diff --git a/libebl/libebl_ppc64.map b/libebl/libebl_ppc64.map new file mode 100644 index 0000000..260805d --- /dev/null +++ b/libebl/libebl_ppc64.map @@ -0,0 +1,12 @@ +ELFUTILS_1.0 { + global: + ppc64_backend_name; + ppc64_destr; + ppc64_init; + ppc64_reloc_type_check; + ppc64_reloc_type_name; + ppc64_reloc_simple_type; + + local: + *; +}; diff --git a/libebl/libebl_sh.h b/libebl/libebl_sh.h new file mode 100644 index 0000000..32b029a --- /dev/null +++ b/libebl/libebl_sh.h @@ -0,0 +1,34 @@ +/* Interface for libebl_sh module. + Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBL_SH_H +#define _LIBEBL_SH_H 1 + +#include + + +/* Constructor. */ +extern const char *sh_init (Elf *elf, GElf_Half machine, Ebl *eh, + size_t ehlen); + +/* Destructor. */ +extern void sh_destr (Ebl *bh); + + +/* Function to get relocation type name. */ +extern const char *sh_reloc_type_name (int type, char *buf, size_t len); + +/* Check whether given relocation is a copy relocation. */ +extern bool sh_copy_reloc_p (int reloc); + +#endif /* libebl_sh.h */ diff --git a/libebl/libebl_sh.map b/libebl/libebl_sh.map new file mode 100644 index 0000000..252720a --- /dev/null +++ b/libebl/libebl_sh.map @@ -0,0 +1,10 @@ +ELFUTILS_1.0 { + global: + sh_backend_name; + sh_destr; + sh_init; + sh_reloc_type_name; + + local: + *; +}; diff --git a/libebl/libebl_sparc.h b/libebl/libebl_sparc.h new file mode 100644 index 0000000..077db17 --- /dev/null +++ b/libebl/libebl_sparc.h @@ -0,0 +1,41 @@ +/* Interface for libebl_sparc module. + Copyright (C) 2002, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBL_SPARC_H +#define _LIBEBL_SPARC_H 1 + +#include + + +/* Constructor. */ +extern const char *sparc_init (Elf *elf, GElf_Half machine, Ebl *eh, + size_t ehlen); + +/* Destructor. */ +extern void sparc_destr (Ebl *bh); + + +/* Function to get relocation type name. */ +extern const char *sparc_reloc_type_name (int type, char *buf, size_t len); + +/* Check relocation type. */ +extern bool sparc_reloc_type_check (int type); + +/* Code note handling. */ +extern bool sparc_core_note (const char *name, uint32_t type, uint32_t descsz, + const char *desc); + +/* Check whether given relocation is a copy relocation. */ +extern bool sparc_copy_reloc_p (int reloc); + +#endif /* libebl_sparc.h */ diff --git a/libebl/libebl_sparc.map b/libebl/libebl_sparc.map new file mode 100644 index 0000000..7ca6038 --- /dev/null +++ b/libebl/libebl_sparc.map @@ -0,0 +1,11 @@ +ELFUTILS_1.0 { + global: + sparc_backend_name; + sparc_destr; + sparc_init; + sparc_reloc_type_check; + sparc_reloc_type_name; + + local: + *; +}; diff --git a/libebl/libebl_x86_64.h b/libebl/libebl_x86_64.h new file mode 100644 index 0000000..025edb6 --- /dev/null +++ b/libebl/libebl_x86_64.h @@ -0,0 +1,47 @@ +/* Interface for libebl_x86_64 module. + Copyright (C) 2002, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _LIBEBL_X86_64_H +#define _LIBEBL_X86_64_H 1 + +#include + + +/* Constructor. */ +extern const char *x86_64_init (Elf *elf, GElf_Half machine, Ebl *eh, + size_t ehlen); + +/* Destructor. */ +extern void x86_64_destr (Ebl *bh); + + +/* Function to get relocation type name. */ +extern const char *x86_64_reloc_type_name (int type, char *buf, size_t len); + +/* Check relocation type. */ +extern bool x86_64_reloc_type_check (int type); + +/* Check relocation type use. */ +extern bool x86_64_reloc_valid_use (Elf *elf, int type); + +/* Check for the simple reloc types. */ +extern Elf_Type x86_64_reloc_simple_type (Elf *elf, int type); + +/* Code note handling. */ +extern bool x86_64_core_note (const char *name, uint32_t type, uint32_t descsz, + const char *desc); + +/* Check whether given relocation is a copy relocation. */ +extern bool x86_64_copy_reloc_p (int reloc); + +#endif /* libebl_x86_64.h */ diff --git a/libebl/libebl_x86_64.map b/libebl/libebl_x86_64.map new file mode 100644 index 0000000..e6d1c7b --- /dev/null +++ b/libebl/libebl_x86_64.map @@ -0,0 +1,13 @@ +ELFUTILS_1.0 { + global: + x86_64_backend_name; + x86_64_core_note; + x86_64_destr; + x86_64_init; + x86_64_reloc_type_check; + x86_64_reloc_type_name; + x86_64_reloc_simple_type; + + local: + *; +}; diff --git a/libebl/ppc64_destr.c b/libebl/ppc64_destr.c new file mode 100644 index 0000000..8da6a8f --- /dev/null +++ b/libebl/ppc64_destr.c @@ -0,0 +1,27 @@ +/* Destructor for PPC64 specific backend library. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +void +ppc64_destr (bh) + Ebl *bh __attribute__ ((unused)); +{ + /* Nothing to do so far. */ +} diff --git a/libebl/ppc64_init.c b/libebl/ppc64_init.c new file mode 100644 index 0000000..8231a32 --- /dev/null +++ b/libebl/ppc64_init.c @@ -0,0 +1,44 @@ +/* Initialization of PPC64 specific backend library. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +const char * +ppc64_init (elf, machine, eh, ehlen) + Elf *elf __attribute__ ((unused)); + GElf_Half machine __attribute__ ((unused)); + Ebl *eh; + size_t ehlen; +{ + /* Check whether the Elf_BH object has a sufficent size. */ + if (ehlen < sizeof (Ebl)) + return NULL; + + /* We handle it. */ + eh->name = "PowerPC 64-bit"; + eh->reloc_type_name = ppc64_reloc_type_name; + eh->reloc_type_check = ppc64_reloc_type_check; + eh->reloc_valid_use = ppc64_reloc_valid_use; + eh->reloc_simple_type = ppc64_reloc_simple_type; + eh->dynamic_tag_name = ppc64_dynamic_tag_name; + eh->copy_reloc_p = ppc64_copy_reloc_p; + eh->destr = ppc64_destr; + + return MODVERSION; +} diff --git a/libebl/ppc64_symbol.c b/libebl/ppc64_symbol.c new file mode 100644 index 0000000..f844816 --- /dev/null +++ b/libebl/ppc64_symbol.c @@ -0,0 +1,235 @@ +/* PPC64 specific symbolic name handling. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include + + +/* Return of the backend. */ +const char * +ppc64_backend_name (void) +{ + return "ppc64"; +} + + +/* Relocation mapping table. */ +static struct +{ + const char *name; + enum { both = 0, rel = 1, exec = 2 } appear; +} reloc_map_table[] = + { + // XXX Check all the appear values. + [R_PPC64_NONE] = { "R_PPC64_NONE", both }, + [R_PPC64_ADDR32] = { "R_PPC64_ADDR32", both }, + [R_PPC64_ADDR24] = { "R_PPC64_ADDR24", both }, + [R_PPC64_ADDR16] = { "R_PPC64_ADDR16", both }, + [R_PPC64_ADDR16_LO] = { "R_PPC64_ADDR16_LO", both }, + [R_PPC64_ADDR16_HI] = { "R_PPC64_ADDR16_HI", both }, + [R_PPC64_ADDR16_HA] = { "R_PPC64_ADDR16_HA", both }, + [R_PPC64_ADDR14] = { "R_PPC64_ADDR14", both }, + [R_PPC64_ADDR14_BRTAKEN] = { "R_PPC64_ADDR14_BRTAKEN", exec }, + [R_PPC64_ADDR14_BRNTAKEN] = { "R_PPC64_ADDR14_BRNTAKEN", exec }, + [R_PPC64_REL24] = { "R_PPC64_REL24", both }, + [R_PPC64_REL14] = { "R_PPC64_REL14", both }, + [R_PPC64_REL14_BRTAKEN] = { "R_PPC64_REL14_BRTAKEN", exec }, + [R_PPC64_REL14_BRNTAKEN] = { "R_PPC64_REL14_BRNTAKEN", exec }, + [R_PPC64_GOT16] = { "R_PPC64_GOT16", rel }, + [R_PPC64_GOT16_LO] = { "R_PPC64_GOT16_LO", rel }, + [R_PPC64_GOT16_HI] = { "R_PPC64_GOT16_HI", rel }, + [R_PPC64_GOT16_HA] = { "R_PPC64_GOT16_HA", rel }, + [R_PPC64_COPY] = { "R_PPC64_COPY", exec }, + [R_PPC64_GLOB_DAT] = { "R_PPC64_GLOB_DAT", exec }, + [R_PPC64_JMP_SLOT] = { "R_PPC64_JMP_SLOT", exec }, + [R_PPC64_RELATIVE] = { "R_PPC64_RELATIVE", exec }, + [R_PPC64_UADDR32] = { "R_PPC64_UADDR32", exec }, + [R_PPC64_UADDR16] = { "R_PPC64_UADDR16", exec }, + [R_PPC64_REL32] = { "R_PPC64_REL32", exec }, + [R_PPC64_PLT32] = { "R_PPC64_PLT32", exec }, + [R_PPC64_PLTREL32] = { "R_PPC64_PLTREL32", both }, + [R_PPC64_PLT16_LO] = { "R_PPC64_PLT16_LO", both }, + [R_PPC64_PLT16_HI] = { "R_PPC64_PLT16_HI", both }, + [R_PPC64_PLT16_HA] = { "R_PPC64_PLT16_HA", both }, + [R_PPC64_SECTOFF] = { "R_PPC64_SECTOFF", both }, + [R_PPC64_SECTOFF_LO] = { "R_PPC64_SECTOFF_LO", both }, + [R_PPC64_SECTOFF_HI] = { "R_PPC64_SECTOFF_HI", both }, + [R_PPC64_SECTOFF_HA] = { "R_PPC64_SECTOFF_HA", both }, + [R_PPC64_ADDR30] = { "R_PPC64_ADDR30", both }, + [R_PPC64_ADDR64] = { "R_PPC64_ADDR64", both }, + [R_PPC64_ADDR16_HIGHER] = { "R_PPC64_ADDR16_HIGHER", both }, + [R_PPC64_ADDR16_HIGHERA] = { "R_PPC64_ADDR16_HIGHERA", both }, + [R_PPC64_ADDR16_HIGHEST] = { "R_PPC64_ADDR16_HIGHEST", both }, + [R_PPC64_ADDR16_HIGHESTA] = { "R_PPC64_ADDR16_HIGHESTA", both }, + [R_PPC64_UADDR64] = { "R_PPC64_UADDR64", both }, + [R_PPC64_REL64] = { "R_PPC64_REL64", both }, + [R_PPC64_PLT64] = { "R_PPC64_PLT64", both }, + [R_PPC64_PLTREL64] = { "R_PPC64_PLTREL64", both }, + [R_PPC64_TOC16] = { "R_PPC64_TOC16", both }, + [R_PPC64_TOC16_LO] = { "R_PPC64_TOC16_LO", both }, + [R_PPC64_TOC16_HI] = { "R_PPC64_TOC16_HI", both }, + [R_PPC64_TOC16_HA] = { "R_PPC64_TOC16_HA", both }, + [R_PPC64_TOC] = { "R_PPC64_TOC", both }, + [R_PPC64_PLTGOT16] = { "R_PPC64_PLTGOT16", both }, + [R_PPC64_PLTGOT16_LO] = { "R_PPC64_PLTGOT16_LO", both }, + [R_PPC64_PLTGOT16_HI] = { "R_PPC64_PLTGOT16_HI", both }, + [R_PPC64_PLTGOT16_HA] = { "R_PPC64_PLTGOT16_HA", both }, + [R_PPC64_ADDR16_DS] = { "R_PPC64_ADDR16_DS", both }, + [R_PPC64_ADDR16_LO_DS] = { "R_PPC64_ADDR16_LO_DS", both }, + [R_PPC64_GOT16_DS] = { "R_PPC64_GOT16_DS", both }, + [R_PPC64_GOT16_LO_DS] = { "R_PPC64_GOT16_LO_DS", both }, + [R_PPC64_PLT16_LO_DS] = { "R_PPC64_PLT16_LO_DS", both }, + [R_PPC64_SECTOFF_DS] = { "R_PPC64_SECTOFF_DS", both }, + [R_PPC64_SECTOFF_LO_DS] = { "R_PPC64_SECTOFF_LO_DS", both }, + [R_PPC64_TOC16_DS] = { "R_PPC64_TOC16_DS", both }, + [R_PPC64_TOC16_LO_DS] = { "R_PPC64_TOC16_LO_DS", both }, + [R_PPC64_PLTGOT16_DS] = { "R_PPC64_PLTGOT16_DS", both }, + [R_PPC64_PLTGOT16_LO_DS] = { "R_PPC64_PLTGOT16_LO_DS", both }, + [R_PPC64_TLS] = { "R_PPC64_TLS", both }, + [R_PPC64_DTPMOD64] = { "R_PPC64_DTPMOD64", both }, + [R_PPC64_TPREL16] = { "R_PPC64_TPREL16", both }, + [R_PPC64_TPREL16_LO] = { "R_PPC64_TPREL16_LO", both }, + [R_PPC64_TPREL16_HI] = { "R_PPC64_TPREL16_HI", both }, + [R_PPC64_TPREL16_HA] = { "R_PPC64_TPREL16_HA", both }, + [R_PPC64_TPREL64] = { "R_PPC64_TPREL64", both }, + [R_PPC64_DTPREL16] = { "R_PPC64_DTPREL16", both }, + [R_PPC64_DTPREL16_LO] = { "R_PPC64_DTPREL16_LO", both }, + [R_PPC64_DTPREL16_HI] = { "R_PPC64_DTPREL16_HI", both }, + [R_PPC64_DTPREL16_HA] = { "R_PPC64_DTPREL16_HA", both }, + [R_PPC64_DTPREL64] = { "R_PPC64_DTPREL64", both }, + [R_PPC64_GOT_TLSGD16] = { "R_PPC64_GOT_TLSGD16", both }, + [R_PPC64_GOT_TLSGD16_LO] = { "R_PPC64_GOT_TLSGD16_LO", both }, + [R_PPC64_GOT_TLSGD16_HI] = { "R_PPC64_GOT_TLSGD16_HI", both }, + [R_PPC64_GOT_TLSGD16_HA] = { "R_PPC64_GOT_TLSGD16_HA", both }, + [R_PPC64_GOT_TLSLD16] = { "R_PPC64_GOT_TLSLD16", both }, + [R_PPC64_GOT_TLSLD16_LO] = { "R_PPC64_GOT_TLSLD16_LO", both }, + [R_PPC64_GOT_TLSLD16_HI] = { "R_PPC64_GOT_TLSLD16_HI", both }, + [R_PPC64_GOT_TLSLD16_HA] = { "R_PPC64_GOT_TLSLD16_HA", both }, + [R_PPC64_GOT_TPREL16_DS] = { "R_PPC64_GOT_TPREL16_DS", both }, + [R_PPC64_GOT_TPREL16_LO_DS] = { "R_PPC64_GOT_TPREL16_LO_DS", both }, + [R_PPC64_GOT_TPREL16_HI] = { "R_PPC64_GOT_TPREL16_HI", both }, + [R_PPC64_GOT_TPREL16_HA] = { "R_PPC64_GOT_TPREL16_HA", both }, + [R_PPC64_GOT_DTPREL16_DS] = { "R_PPC64_GOT_DTPREL16_DS", both }, + [R_PPC64_GOT_DTPREL16_LO_DS] = { "R_PPC64_GOT_DTPREL16_LO_DS", both }, + [R_PPC64_GOT_DTPREL16_HI] = { "R_PPC64_GOT_DTPREL16_HI", both }, + [R_PPC64_GOT_DTPREL16_HA] = { "R_PPC64_GOT_DTPREL16_HA", both }, + [R_PPC64_TPREL16_DS] = { "R_PPC64_TPREL16_DS", both }, + [R_PPC64_TPREL16_LO_DS] = { "R_PPC64_TPREL16_LO_DS", both }, + [R_PPC64_TPREL16_HIGHER] = { "R_PPC64_TPREL16_HIGHER", both }, + [R_PPC64_TPREL16_HIGHERA] = { "R_PPC64_TPREL16_HIGHERA", both }, + [R_PPC64_TPREL16_HIGHEST] = { "R_PPC64_TPREL16_HIGHEST", both }, + [R_PPC64_TPREL16_HIGHESTA] = { "R_PPC64_TPREL16_HIGHESTA", both }, + [R_PPC64_DTPREL16_DS] = { "R_PPC64_DTPREL16_DS", both }, + [R_PPC64_DTPREL16_LO_DS] = { "R_PPC64_DTPREL16_LO_DS", both }, + [R_PPC64_DTPREL16_HIGHER] = { "R_PPC64_DTPREL16_HIGHER", both }, + [R_PPC64_DTPREL16_HIGHERA] = { "R_PPC64_DTPREL16_HIGHERA", both }, + [R_PPC64_DTPREL16_HIGHEST] = { "R_PPC64_DTPREL16_HIGHEST", both }, + [R_PPC64_DTPREL16_HIGHESTA] = { "R_PPC64_DTPREL16_HIGHESTA", both } + }; + + +/* Determine relocation type string for PPC. */ +const char * +ppc64_reloc_type_name (int type, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + if (type < R_PPC64_NONE || type >= R_PPC64_NUM) + return NULL; + + return reloc_map_table[type].name; +} + + +/* Check for correct relocation type. */ +bool +ppc64_reloc_type_check (int type) +{ + return (type >= R_PPC64_NONE && type < R_PPC64_NUM + && reloc_map_table[type].name != NULL) ? true : false; +} + + +/* Check for correct relocation type use. */ +bool +ppc64_reloc_valid_use (Elf *elf, int type) +{ + if (type < R_PPC64_NONE || type >= R_PPC64_NUM + || reloc_map_table[type].name == NULL) + return false; + + Elf64_Ehdr *ehdr = elf64_getehdr (elf); + assert (ehdr != NULL); + + if (reloc_map_table[type].appear == rel) + return ehdr->e_type == ET_REL; + + if (reloc_map_table[type].appear == exec) + return ehdr->e_type != ET_REL; + + assert (reloc_map_table[type].appear == both); + return true; +} + + +/* Check for the simple reloc types. */ +Elf_Type +ppc64_reloc_simple_type (Elf *elf __attribute__ ((unused)), int type) +{ + switch (type) + { + case R_PPC64_ADDR64: + case R_PPC64_UADDR64: + return ELF_T_XWORD; + case R_PPC64_ADDR32: + case R_PPC64_UADDR32: + return ELF_T_WORD; + case R_PPC64_UADDR16: + return ELF_T_HALF; + default: + return ELF_T_NUM; + } +} + + +const char * +ppc64_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + switch (tag) + { + case DT_PPC64_GLINK: + return "PPC64_GLINK"; + case DT_PPC64_OPD: + return "PPC64_OPD"; + case DT_PPC64_OPDSZ: + return "PPC64_OPDSZ"; + default: + break; + } + return NULL; +} + +/* Check whether given relocation is a copy relocation. */ +bool +ppc64_copy_reloc_p (int reloc) +{ + return reloc == R_PPC64_COPY; +} diff --git a/libebl/ppc_destr.c b/libebl/ppc_destr.c new file mode 100644 index 0000000..65bb81c --- /dev/null +++ b/libebl/ppc_destr.c @@ -0,0 +1,27 @@ +/* Destructor for PPC specific backend library. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +void +ppc_destr (bh) + Ebl *bh __attribute__ ((unused)); +{ + /* Nothing to do so far. */ +} diff --git a/libebl/ppc_init.c b/libebl/ppc_init.c new file mode 100644 index 0000000..4d72c46 --- /dev/null +++ b/libebl/ppc_init.c @@ -0,0 +1,43 @@ +/* Initialization of PPC specific backend library. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +const char * +ppc_init (elf, machine, eh, ehlen) + Elf *elf __attribute__ ((unused)); + GElf_Half machine __attribute__ ((unused)); + Ebl *eh; + size_t ehlen; +{ + /* Check whether the Elf_BH object has a sufficent size. */ + if (ehlen < sizeof (Ebl)) + return NULL; + + /* We handle it. */ + eh->name = "PowerPC"; + eh->reloc_type_name = ppc_reloc_type_name; + eh->reloc_type_check = ppc_reloc_type_check; + eh->reloc_valid_use = ppc_reloc_valid_use; + eh->reloc_simple_type = ppc_reloc_simple_type; + eh->copy_reloc_p = ppc_copy_reloc_p; + eh->destr = ppc_destr; + + return MODVERSION; +} diff --git a/libebl/ppc_symbol.c b/libebl/ppc_symbol.c new file mode 100644 index 0000000..20beae3 --- /dev/null +++ b/libebl/ppc_symbol.c @@ -0,0 +1,174 @@ +/* PPC specific symbolic name handling. + Copyright (C) 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include + + +/* Return of the backend. */ +const char * +ppc_backend_name (void) +{ + return "ppc"; +} + + +/* Relocation mapping table. */ +static struct +{ + const char *name; + enum { both = 0, rel = 1, exec = 2 } appear; +} reloc_map_table[] = + { + // XXX Check all the appear values. + [R_PPC_NONE] = { "R_PPC_NONE", both }, + [R_PPC_ADDR32] = { "R_PPC_ADDR32", both }, + [R_PPC_ADDR24] = { "R_PPC_ADDR24", both }, + [R_PPC_ADDR16] = { "R_PPC_ADDR16", both }, + [R_PPC_ADDR16_LO] = { "R_PPC_ADDR16_LO", both }, + [R_PPC_ADDR16_HI] = { "R_PPC_ADDR16_HI", both }, + [R_PPC_ADDR16_HA] = { "R_PPC_ADDR16_HA", both }, + [R_PPC_ADDR14] = { "R_PPC_ADDR14", exec }, + [R_PPC_ADDR14_BRTAKEN] = { "R_PPC_ADDR14_BRTAKEN", exec }, + [R_PPC_ADDR14_BRNTAKEN] = { "R_PPC_ADDR14_BRNTAKEN", exec }, + [R_PPC_REL24] = { "R_PPC_REL24", both }, + [R_PPC_REL14] = { "R_PPC_REL14", both }, + [R_PPC_REL14_BRTAKEN] = { "R_PPC_REL14_BRTAKEN", exec }, + [R_PPC_REL14_BRNTAKEN] = { "R_PPC_REL14_BRNTAKEN", exec }, + [R_PPC_GOT16] = { "R_PPC_GOT16", rel }, + [R_PPC_GOT16_LO] = { "R_PPC_GOT16_LO", rel }, + [R_PPC_GOT16_HI] = { "R_PPC_GOT16_HI", rel }, + [R_PPC_GOT16_HA] = { "R_PPC_GOT16_HA", rel }, + [R_PPC_PLTREL24] = { "R_PPC_PLTREL24", rel }, + [R_PPC_COPY] = { "R_PPC_COPY", exec }, + [R_PPC_GLOB_DAT] = { "R_PPC_GLOB_DAT", exec }, + [R_PPC_JMP_SLOT] = { "R_PPC_JMP_SLOT", exec }, + [R_PPC_RELATIVE] = { "R_PPC_RELATIVE", exec }, + [R_PPC_LOCAL24PC] = { "R_PPC_LOCAL24PC", rel }, + [R_PPC_UADDR32] = { "R_PPC_UADDR32", exec }, + [R_PPC_UADDR16] = { "R_PPC_UADDR16", exec }, + [R_PPC_REL32] = { "R_PPC_REL32", exec }, + [R_PPC_PLT32] = { "R_PPC_PLT32", exec }, + [R_PPC_PLTREL32] = { "R_PPC_PLTREL32", both }, + [R_PPC_PLT16_LO] = { "R_PPC_PLT16_LO", both }, + [R_PPC_PLT16_HI] = { "R_PPC_PLT16_HI", both }, + [R_PPC_PLT16_HA] = { "R_PPC_PLT16_HA", both }, + [R_PPC_SDAREL16] = { "R_PPC_SDAREL16", both }, + [R_PPC_SECTOFF] = { "R_PPC_SECTOFF", both }, + [R_PPC_SECTOFF_LO] = { "R_PPC_SECTOFF_LO", both }, + [R_PPC_SECTOFF_HI] = { "R_PPC_SECTOFF_HI", both }, + [R_PPC_SECTOFF_HA] = { "R_PPC_SECTOFF_HA", both }, + [R_PPC_TLS] = { "R_PPC_TLS", both }, + [R_PPC_DTPMOD32] = { "R_PPC_DTPMOD32", exec }, + [R_PPC_TPREL16] = { "R_PPC_TPREL16", rel }, + [R_PPC_TPREL16_LO] = { "R_PPC_TPREL16_LO", rel }, + [R_PPC_TPREL16_HI] = { "R_PPC_TPREL16_HI", rel }, + [R_PPC_TPREL16_HA] = { "R_PPC_TPREL16_HA", rel }, + [R_PPC_TPREL32] = { "R_PPC_TPREL32", exec }, + [R_PPC_DTPREL16] = { "R_PPC_DTPREL16", rel }, + [R_PPC_DTPREL16_LO] = { "R_PPC_DTPREL16_LO", rel }, + [R_PPC_DTPREL16_HI] = { "R_PPC_DTPREL16_HI", rel }, + [R_PPC_DTPREL16_HA] = { "R_PPC_DTPREL16_HA", rel }, + [R_PPC_DTPREL32] = { "R_PPC_DTPREL32", exec }, + [R_PPC_GOT_TLSGD16] = { "R_PPC_GOT_TLSGD16", exec }, + [R_PPC_GOT_TLSGD16_LO] = { "R_PPC_GOT_TLSGD16_LO", exec }, + [R_PPC_GOT_TLSGD16_HI] = { "R_PPC_GOT_TLSGD16_HI", exec }, + [R_PPC_GOT_TLSGD16_HA] = { "R_PPC_GOT_TLSGD16_HA", exec }, + [R_PPC_GOT_TLSLD16] = { "R_PPC_GOT_TLSLD16", exec }, + [R_PPC_GOT_TLSLD16_LO] = { "R_PPC_GOT_TLSLD16_LO", exec }, + [R_PPC_GOT_TLSLD16_HI] = { "R_PPC_GOT_TLSLD16_HI", exec }, + [R_PPC_GOT_TLSLD16_HA] = { "R_PPC_GOT_TLSLD16_HA", exec }, + [R_PPC_GOT_TPREL16] = { "R_PPC_GOT_TPREL16", exec }, + [R_PPC_GOT_TPREL16_LO] = { "R_PPC_GOT_TPREL16_LO", exec }, + [R_PPC_GOT_TPREL16_HI] = { "R_PPC_GOT_TPREL16_HI", exec }, + [R_PPC_GOT_TPREL16_HA] = { "R_PPC_GOT_TPREL16_HA", exec }, + [R_PPC_GOT_DTPREL16] = { "R_PPC_GOT_DTPREL16", exec }, + [R_PPC_GOT_DTPREL16_LO] = { "R_PPC_GOT_DTPREL16_LO", exec }, + [R_PPC_GOT_DTPREL16_HI] = { "R_PPC_GOT_DTPREL16_HI", exec }, + [R_PPC_GOT_DTPREL16_HA] = { "R_PPC_GOT_DTPREL16_HA", exec } + }; + + +/* Determine relocation type string for PPC. */ +const char * +ppc_reloc_type_name (int type, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + if (type < 0 || type >= R_PPC_NUM) + return NULL; + + return reloc_map_table[type].name; +} + + +/* Check for correct relocation type. */ +bool +ppc_reloc_type_check (int type) +{ + return (type >= R_PPC_NONE && type < R_PPC_NUM + && reloc_map_table[type].name != NULL) ? true : false; +} + + +/* Check for correct relocation type use. */ +bool +ppc_reloc_valid_use (Elf *elf, int type) +{ + if (type < R_PPC_NONE || type >= R_PPC_NUM + || reloc_map_table[type].name == NULL) + return false; + + Elf32_Ehdr *ehdr = elf32_getehdr (elf); + assert (ehdr != NULL); + + if (reloc_map_table[type].appear == rel) + return ehdr->e_type == ET_REL; + + if (reloc_map_table[type].appear == exec) + return ehdr->e_type != ET_REL; + + assert (reloc_map_table[type].appear == both); + return true; +} + + +/* Check for the simple reloc types. */ +Elf_Type +ppc_reloc_simple_type (Elf *elf __attribute__ ((unused)), int type) +{ + switch (type) + { + case R_PPC_ADDR32: + case R_PPC_UADDR32: + return ELF_T_WORD; + case R_PPC_UADDR16: + return ELF_T_HALF; + default: + return ELF_T_NUM; + } +} + +/* Check whether given relocation is a copy relocation. */ +bool +ppc_copy_reloc_p (int reloc) +{ + return reloc == R_PPC_COPY; +} diff --git a/libebl/sh_destr.c b/libebl/sh_destr.c new file mode 100644 index 0000000..4f06534 --- /dev/null +++ b/libebl/sh_destr.c @@ -0,0 +1,27 @@ +/* Destructor for SH specific backend library. + Copyright (C) 2000. 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +void +sh_destr (bh) + Ebl *bh __attribute__ ((unused)); +{ + /* Nothing to do so far. */ +} diff --git a/libebl/sh_init.c b/libebl/sh_init.c new file mode 100644 index 0000000..bb6c904 --- /dev/null +++ b/libebl/sh_init.c @@ -0,0 +1,40 @@ +/* Initialization of SH specific backend library. + Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +const char * +sh_init (elf, machine, eh, ehlen) + Elf *elf __attribute__ ((unused)); + GElf_Half machine __attribute__ ((unused)); + Ebl *eh; + size_t ehlen; +{ + /* Check whether the Elf_BH object has a sufficent size. */ + if (ehlen < sizeof (Ebl)) + return NULL; + + /* We handle it. */ + eh->name = "Hitachi SH"; + eh->reloc_type_name = sh_reloc_type_name; + eh->copy_reloc_p = sh_copy_reloc_p; + eh->destr = sh_destr; + + return MODVERSION; +} diff --git a/libebl/sh_symbol.c b/libebl/sh_symbol.c new file mode 100644 index 0000000..e24fff1 --- /dev/null +++ b/libebl/sh_symbol.c @@ -0,0 +1,99 @@ +/* SH specific relocation handling. + Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +/* Return of the backend. */ +const char * +sh_backend_name (void) +{ + return "sh"; +} + + +/* Determine relocation type string for SH. */ +const char * +sh_reloc_type_name (int type, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + static const char *map_table1[] = + { + [R_SH_NONE] = "R_SH_NONE", + [R_SH_DIR32] = "R_SH_DIR32", + [R_SH_REL32] = "R_SH_REL32", + [R_SH_DIR8WPN] = "R_SH_DIR8WPN", + [R_SH_IND12W] = "R_SH_IND12W", + [R_SH_DIR8WPL] = "R_SH_DIR8WPL", + [R_SH_DIR8WPZ] = "R_SH_DIR8WPZ", + [R_SH_DIR8BP] = "R_SH_DIR8BP", + [R_SH_DIR8W] = "R_SH_DIR8W", + [R_SH_DIR8L] = "R_SH_DIR8L", + [R_SH_SWITCH16] = "R_SH_SWITCH16", + [R_SH_SWITCH32] = "R_SH_SWITCH32", + [R_SH_USES] = "R_SH_USES", + [R_SH_COUNT] = "R_SH_COUNT", + [R_SH_ALIGN] = "R_SH_ALIGN", + [R_SH_CODE] = "R_SH_CODE", + [R_SH_DATA] = "R_SH_DATA", + [R_SH_LABEL] = "R_SH_LABEL", + [R_SH_SWITCH8] = "R_SH_SWITCH8", + [R_SH_GNU_VTINHERIT] ="R_SH_GNU_VTINHERIT", + [R_SH_GNU_VTENTRY] = "R_SH_GNU_VTENTRY" + }; + static const char *map_table2[] = + { + [R_SH_TLS_GD_32] = "R_SH_TLS_GD_32", + [R_SH_TLS_LD_32] = "R_SH_TLS_LD_32", + [R_SH_TLS_LDO_32] = "R_SH_TLS_LDO_32", + [R_SH_TLS_IE_32] = "R_SH_TLS_IE_32", + [R_SH_TLS_LE_32] = "R_SH_TLS_LE_32", + [R_SH_TLS_DTPMOD32] = "R_SH_TLS_DTPMOD32", + [R_SH_TLS_DTPOFF32] = "R_SH_TLS_DTPOFF32", + [R_SH_TLS_TPOFF32] = "R_SH_TLS_TPOFF32", + [R_SH_GOT32 - R_SH_GOT32] = "R_SH_GOT32", + [R_SH_PLT32 - R_SH_GOT32] = "R_SH_PLT32", + [R_SH_COPY - R_SH_GOT32] = "R_SH_COPY", + [R_SH_GLOB_DAT - R_SH_GOT32] = "R_SH_GLOB_DAT", + [R_SH_JMP_SLOT - R_SH_GOT32] = "R_SH_JMP_SLOT", + [R_SH_RELATIVE - R_SH_GOT32] = "R_SH_RELATIVE", + [R_SH_GOTOFF - R_SH_GOT32] = "R_SH_GOTOFF", + [R_SH_GOTPC - R_SH_GOT32] = "R_SH_GOTPC" + }; + + if (type >= 0 + && (size_t) type < sizeof (map_table1) / sizeof (map_table1[0])) + return map_table1[type]; + + if ((type - R_SH_TLS_GD_32) >= 0 + && ((size_t) (type - R_SH_TLS_GD_32) + < sizeof (map_table2) / sizeof (map_table2[0]))) + return map_table2[type - R_SH_TLS_GD_32]; + + return NULL; +} + +/* Check whether given relocation is a copy relocation. */ +bool +sh_copy_reloc_p (int reloc) +{ + return reloc == R_SH_COPY; +} diff --git a/libebl/sparc_destr.c b/libebl/sparc_destr.c new file mode 100644 index 0000000..819f361 --- /dev/null +++ b/libebl/sparc_destr.c @@ -0,0 +1,26 @@ +/* Destructor for SPARC specific backend library. + Copyright (C) 2002, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +void +sparc_destr (bh) + Ebl *bh __attribute__ ((unused)); +{ + /* Nothing to do so far. */ +} diff --git a/libebl/sparc_init.c b/libebl/sparc_init.c new file mode 100644 index 0000000..ac461a1 --- /dev/null +++ b/libebl/sparc_init.c @@ -0,0 +1,46 @@ +/* Initialization of SPARC specific backend library. + Copyright (C) 2002, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +const char * +sparc_init (elf, machine, eh, ehlen) + Elf *elf __attribute__ ((unused)); + GElf_Half machine __attribute__ ((unused)); + Ebl *eh; + size_t ehlen; +{ + /* Check whether the Elf_BH object has a sufficent size. */ + if (ehlen < sizeof (Ebl)) + return NULL; + + /* We handle it. */ + if (machine == EM_SPARCV9) + eh->name = "SPARC v9"; + else if (machine == EM_SPARC32PLUS) + eh->name = "SPARC v8+"; + else + eh->name = "SPARC"; + eh->reloc_type_name = sparc_reloc_type_name; + eh->reloc_type_check = sparc_reloc_type_check; + //eh->core_note = sparc_core_note; + eh->copy_reloc_p = sparc_copy_reloc_p; + eh->destr = sparc_destr; + + return MODVERSION; +} diff --git a/libebl/sparc_symbol.c b/libebl/sparc_symbol.c new file mode 100644 index 0000000..f33ed53 --- /dev/null +++ b/libebl/sparc_symbol.c @@ -0,0 +1,149 @@ +/* SPARC specific symbolic name handling. + Copyright (C) 2002, 2003, 2005 Red Hat, Inc. + Written by Jakub Jelinek , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include + + +/* Return of the backend. */ +const char * +sparc_backend_name (void) +{ + return "sparc"; +} + + +/* Relocation mapping table. */ +static const char *reloc_map_table[] = + { + [R_SPARC_NONE] = "R_SPARC_NONE", + [R_SPARC_8] = "R_SPARC_8", + [R_SPARC_16] = "R_SPARC_16", + [R_SPARC_32] = "R_SPARC_32", + [R_SPARC_DISP8] = "R_SPARC_DISP8", + [R_SPARC_DISP16] = "R_SPARC_DISP16", + [R_SPARC_DISP32] = "R_SPARC_DISP32", + [R_SPARC_WDISP30] = "R_SPARC_WDISP30", + [R_SPARC_WDISP22] = "R_SPARC_WDISP22", + [R_SPARC_HI22] = "R_SPARC_HI22", + [R_SPARC_22] = "R_SPARC_22", + [R_SPARC_13] = "R_SPARC_13", + [R_SPARC_LO10] = "R_SPARC_LO10", + [R_SPARC_GOT10] = "R_SPARC_GOT10", + [R_SPARC_GOT13] = "R_SPARC_GOT13", + [R_SPARC_GOT22] = "R_SPARC_GOT22", + [R_SPARC_PC10] = "R_SPARC_PC10", + [R_SPARC_PC22] = "R_SPARC_PC22", + [R_SPARC_WPLT30] = "R_SPARC_WPLT30", + [R_SPARC_COPY] = "R_SPARC_COPY", + [R_SPARC_GLOB_DAT] = "R_SPARC_GLOB_DAT", + [R_SPARC_JMP_SLOT] = "R_SPARC_JMP_SLOT", + [R_SPARC_RELATIVE] = "R_SPARC_RELATIVE", + [R_SPARC_UA32] = "R_SPARC_UA32", + [R_SPARC_PLT32] = "R_SPARC_PLT32", + [R_SPARC_HIPLT22] = "R_SPARC_HIPLT22", + [R_SPARC_LOPLT10] = "R_SPARC_LOPLT10", + [R_SPARC_PCPLT32] = "R_SPARC_PCPLT32", + [R_SPARC_PCPLT22] = "R_SPARC_PCPLT22", + [R_SPARC_PCPLT10] = "R_SPARC_PCPLT10", + [R_SPARC_10] = "R_SPARC_10", + [R_SPARC_11] = "R_SPARC_11", + [R_SPARC_64] = "R_SPARC_64", + [R_SPARC_OLO10] = "R_SPARC_OLO10", + [R_SPARC_HH22] = "R_SPARC_HH22", + [R_SPARC_HM10] = "R_SPARC_HM10", + [R_SPARC_LM22] = "R_SPARC_LM22", + [R_SPARC_PC_HH22] = "R_SPARC_PC_HH22", + [R_SPARC_PC_HM10] = "R_SPARC_PC_HM10", + [R_SPARC_PC_LM22] = "R_SPARC_PC_LM22", + [R_SPARC_WDISP16] = "R_SPARC_WDISP16", + [R_SPARC_WDISP19] = "R_SPARC_WDISP19", + [R_SPARC_7] = "R_SPARC_7", + [R_SPARC_5] = "R_SPARC_5", + [R_SPARC_6] = "R_SPARC_6", + [R_SPARC_DISP64] = "R_SPARC_DISP64", + [R_SPARC_PLT64] = "R_SPARC_PLT64", + [R_SPARC_HIX22] = "R_SPARC_HIX22", + [R_SPARC_LOX10] = "R_SPARC_LOX10", + [R_SPARC_H44] = "R_SPARC_H44", + [R_SPARC_M44] = "R_SPARC_M44", + [R_SPARC_L44] = "R_SPARC_L44", + [R_SPARC_REGISTER] = "R_SPARC_REGISTER", + [R_SPARC_UA64] = "R_SPARC_UA64", + [R_SPARC_UA16] = "R_SPARC_UA16", + [R_SPARC_TLS_GD_HI22] = "R_SPARC_TLS_GD_HI22", + [R_SPARC_TLS_GD_LO10] = "R_SPARC_TLS_GD_LO10", + [R_SPARC_TLS_GD_ADD] = "R_SPARC_TLS_GD_ADD", + [R_SPARC_TLS_GD_CALL] = "R_SPARC_TLS_GD_CALL", + [R_SPARC_TLS_LDM_HI22] = "R_SPARC_TLS_LDM_HI22", + [R_SPARC_TLS_LDM_LO10] = "R_SPARC_TLS_LDM_LO10", + [R_SPARC_TLS_LDM_ADD] = "R_SPARC_TLS_LDM_ADD", + [R_SPARC_TLS_LDM_CALL] = "R_SPARC_TLS_LDM_CALL", + [R_SPARC_TLS_LDO_HIX22] = "R_SPARC_TLS_LDO_HIX22", + [R_SPARC_TLS_LDO_LOX10] = "R_SPARC_TLS_LDO_LOX10", + [R_SPARC_TLS_LDO_ADD] = "R_SPARC_TLS_LDO_ADD", + [R_SPARC_TLS_IE_HI22] = "R_SPARC_TLS_IE_HI22", + [R_SPARC_TLS_IE_LO10] = "R_SPARC_TLS_IE_LO10", + [R_SPARC_TLS_IE_LD] = "R_SPARC_TLS_IE_LD", + [R_SPARC_TLS_IE_LDX] = "R_SPARC_TLS_IE_LDX", + [R_SPARC_TLS_IE_ADD] = "R_SPARC_TLS_IE_ADD", + [R_SPARC_TLS_LE_HIX22] = "R_SPARC_TLS_LE_HIX22", + [R_SPARC_TLS_LE_LOX10] = "R_SPARC_TLS_LE_LOX10", + [R_SPARC_TLS_DTPMOD32] = "R_SPARC_TLS_DTPMOD32", + [R_SPARC_TLS_DTPMOD64] = "R_SPARC_TLS_DTPMOD64", + [R_SPARC_TLS_DTPOFF32] = "R_SPARC_TLS_DTPOFF32", + [R_SPARC_TLS_DTPOFF64] = "R_SPARC_TLS_DTPOFF64", + [R_SPARC_TLS_TPOFF32] = "R_SPARC_TLS_TPOFF32", + [R_SPARC_TLS_TPOFF64] = "R_SPARC_TLS_TPOFF64" + }; + + +/* Determine relocation type string for sparc. */ +const char * +sparc_reloc_type_name (int type, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + /* High 24 bits of r_type are used for second addend in R_SPARC_OLO10. */ + if ((type & 0xff) == R_SPARC_OLO10) + return reloc_map_table[type & 0xff]; + + if (type < 0 || type >= R_SPARC_NUM) + return NULL; + + return reloc_map_table[type]; +} + + +/* Check for correct relocation type. */ +bool +sparc_reloc_type_check (int type) +{ + if ((type & 0xff) == R_SPARC_OLO10) + return true; + return (type >= R_SPARC_NONE && type < R_SPARC_NUM + && reloc_map_table[type] != NULL) ? true : false; +} + +/* Check whether given relocation is a copy relocation. */ +bool +sparc_copy_reloc_p (int reloc) +{ + return reloc == R_SPARC_COPY; +} diff --git a/libebl/x86_64_corenote.c b/libebl/x86_64_corenote.c new file mode 100644 index 0000000..0ee7cea --- /dev/null +++ b/libebl/x86_64_corenote.c @@ -0,0 +1,171 @@ +/* x86-64 specific core note handling. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include + +#include + + +/* We cannot include since the definition would be for + the host platform and not always x86-64 as required here. */ +struct elf_prstatus + { + struct + { + int32_t si_signo; /* Signal number. */ + int32_t si_code; /* Extra code. */ + int32_t si_errno; /* Errno. */ + } pr_info; /* Info associated with signal. */ + int16_t pr_cursig; /* Current signal. */ + uint64_t pr_sigpend; /* Set of pending signals. */ + uint64_t pr_sighold; /* Set of held signals. */ + int32_t pr_pid; + int32_t pr_ppid; + int32_t pr_pgrp; + int32_t pr_sid; + struct x86_64_timeval + { + int64_t tv_sec; + int32_t tv_usec; + } pr_utime; /* User time. */ + struct x86_64_timeval pr_stime; /* System time. */ + struct x86_64_timeval pr_cutime; /* Cumulative user time. */ + struct x86_64_timeval pr_cstime; /* Cumulative system time. */ + uint64_t pr_reg[27]; /* GP registers. */ + int32_t pr_fpvalid; /* True if math copro being used. */ + }; + + +struct elf_prpsinfo + { + char pr_state; /* Numeric process state. */ + char pr_sname; /* Char for pr_state. */ + char pr_zomb; /* Zombie. */ + char pr_nice; /* Nice val. */ + uint64_t pr_flag; /* Flags. */ + uint32_t pr_uid; + uint32_t pr_gid; + int32_t pr_pid; + int32_t pr_ppid; + int32_t pr_pgrp; + int32_t pr_sid; + /* Lots missing */ + char pr_fname[16]; /* Filename of executable. */ + char pr_psargs[80]; /* Initial part of arg list. */ + }; + + +bool +x86_64_core_note (name, type, descsz, desc) + const char *name __attribute__ ((unused)); + uint32_t type; + uint32_t descsz; + const char *desc; +{ + bool result = false; + + switch (type) + { + case NT_PRSTATUS: + if (descsz < sizeof (struct elf_prstatus)) + /* Not enough data. */ + break; + + struct elf_prstatus *stat = (struct elf_prstatus *) desc; + + printf (" SIGINFO: signo: %" PRId32 ", code = %" PRId32 + ", errno = %" PRId32 "\n" + " signal: %" PRId16 ", pending: %#08" PRIx64 ", holding: %#08" + PRIx64 "\n" + " pid: %" PRId32 ", ppid = %" PRId32 ", pgrp = %" PRId32 + ", sid = %" PRId32 "\n" + " utime: %6" PRId64 ".%06" PRId32 + "s, stime: %6" PRId64 ".%06" PRId32 "s\n" + " cutime: %6" PRId64 ".%06" PRId32 + "s, cstime: %6" PRId64 ".%06" PRId32 "s\n" + " rax: %016" PRIx64 " rbx: %016" PRIx64 "\n" + " rcx: %016" PRIx64 " rdx: %016" PRIx64 "\n" + " rsi: %016" PRIx64 " rdi: %016" PRIx64 "\n" + " rbp: %016" PRIx64 " rsp: %016" PRIx64 "\n" + " r8: %016" PRIx64 " r9: %016" PRIx64 "\n" + " r10: %016" PRIx64 " r11: %016" PRIx64 "\n" + " r12: %016" PRIx64 " r13: %016" PRIx64 "\n" + " r14: %016" PRIx64 " r15: %016" PRIx64 "\n" + " rip: %016" PRIx64 " eflags: %08" PRIx64 "\n" + " original rax: %016" PRIx64 "\n" + " cs: %04" PRIx64 " ds: %04" PRIx64 " es: %04" PRIx64 + " ss: %04" PRIx64 "\n" + " fs: %04" PRIx64 " fs_base: %016" PRIx64 + " gs: %04" PRIx64 " gs_base: %016" PRIx64 "\n\n", + stat->pr_info. si_signo, + stat->pr_info. si_code, + stat->pr_info. si_errno, + stat->pr_cursig, + stat->pr_sigpend, stat->pr_sighold, + stat->pr_pid, stat->pr_ppid, stat->pr_pgrp, stat->pr_sid, + stat->pr_utime.tv_sec, stat->pr_utime.tv_usec, + stat->pr_stime.tv_sec, stat->pr_stime.tv_usec, + stat->pr_cutime.tv_sec, stat->pr_cutime.tv_usec, + stat->pr_cstime.tv_sec, stat->pr_cstime.tv_usec, + stat->pr_reg[10], stat->pr_reg[5], stat->pr_reg[11], + stat->pr_reg[12], stat->pr_reg[13], stat->pr_reg[14], + stat->pr_reg[4], stat->pr_reg[10], stat->pr_reg[9], + stat->pr_reg[7], stat->pr_reg[6], stat->pr_reg[5], + stat->pr_reg[3], stat->pr_reg[2], stat->pr_reg[1], + stat->pr_reg[0], stat->pr_reg[16], stat->pr_reg[18], + stat->pr_reg[15], stat->pr_reg[17], stat->pr_reg[23], + stat->pr_reg[24], stat->pr_reg[20], + stat->pr_reg[25], stat->pr_reg[21], + stat->pr_reg[26], stat->pr_reg[22]); + + /* We handled this entry. */ + result = true; + break; + + case NT_PRPSINFO: + if (descsz < sizeof (struct elf_prpsinfo)) + /* Not enough data. */ + break; + + struct elf_prpsinfo *info = (struct elf_prpsinfo *) desc; + + printf (" state: %c (%hhd), zombie: %hhd, nice: %hhd\n" + " flags: %08" PRIx64 " uid: %" PRIu32 " gid: %" PRIu32 "\n" + " pid: %" PRId32 " ppid: %" PRId32 " pgrp: %" PRId32 + " sid: %" PRId32 "\n" + " fname: %.16s\n" + " args: %.80s\n\n", + info->pr_sname, info->pr_state, info->pr_zomb, info->pr_nice, + info->pr_flag, info->pr_uid, info->pr_gid, + info->pr_pid, info->pr_ppid, info->pr_pgrp, info->pr_sid, + info->pr_fname, info->pr_psargs); + + /* We handled this entry. */ + result = true; + break; + + default: + break; + } + + return result; +} diff --git a/libebl/x86_64_destr.c b/libebl/x86_64_destr.c new file mode 100644 index 0000000..3805829 --- /dev/null +++ b/libebl/x86_64_destr.c @@ -0,0 +1,27 @@ +/* Destructor for x86_64 specific backend library. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +void +x86_64_destr (bh) + Ebl *bh __attribute__ ((unused)); +{ + /* Nothing to do so far. */ +} diff --git a/libebl/x86_64_init.c b/libebl/x86_64_init.c new file mode 100644 index 0000000..655a67f --- /dev/null +++ b/libebl/x86_64_init.c @@ -0,0 +1,44 @@ +/* Initialization of x86-64 specific backend library. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +const char * +x86_64_init (elf, machine, eh, ehlen) + Elf *elf __attribute__ ((unused)); + GElf_Half machine __attribute__ ((unused)); + Ebl *eh; + size_t ehlen; +{ + /* Check whether the Elf_BH object has a sufficent size. */ + if (ehlen < sizeof (Ebl)) + return NULL; + + /* We handle it. */ + eh->name = "AMD x86-64"; + eh->reloc_type_name = x86_64_reloc_type_name; + eh->reloc_type_check = x86_64_reloc_type_check; + eh->reloc_valid_use = x86_64_reloc_valid_use; + eh->reloc_simple_type = x86_64_reloc_simple_type; + eh->core_note = x86_64_core_note; + eh->copy_reloc_p = x86_64_copy_reloc_p; + eh->destr = x86_64_destr; + + return MODVERSION; +} diff --git a/libebl/x86_64_symbol.c b/libebl/x86_64_symbol.c new file mode 100644 index 0000000..38d357c --- /dev/null +++ b/libebl/x86_64_symbol.c @@ -0,0 +1,136 @@ +/* x86_64 specific symbolic name handling. + Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include + + +/* Return of the backend. */ +const char * +x86_64_backend_name (void) +{ + return "x86-64"; +} + + +/* Relocation mapping table. */ +static struct +{ + const char *name; + enum { both = 0, rel = 1, exec = 2 } appear; +} reloc_map_table[] = + { + [R_X86_64_NONE] = { "R_X86_64_NONE", both }, + [R_X86_64_64] = { "R_X86_64_64", both }, + [R_X86_64_PC32] = { "R_X86_64_PC32", rel }, + [R_X86_64_GOT32] = { "R_X86_64_GOT32", rel }, + [R_X86_64_PLT32] = { "R_X86_64_PLT32", rel }, + [R_X86_64_COPY] = { "R_X86_64_COPY", exec }, + [R_X86_64_GLOB_DAT] = { "R_X86_64_GLOB_DAT", exec }, + [R_X86_64_JUMP_SLOT] = { "R_X86_64_JUMP_SLOT", exec }, + [R_X86_64_RELATIVE] = { "R_X86_64_RELATIVE", exec }, + [R_X86_64_GOTPCREL] = { "R_X86_64_GOTPCREL", exec }, + [R_X86_64_32] = { "R_X86_64_32", both }, + [R_X86_64_32S] = { "R_X86_64_32S", rel }, + [R_X86_64_16] = { "R_X86_64_16", rel }, + [R_X86_64_PC16] = { "R_X86_64_PC16", rel }, + [R_X86_64_8] = { "R_X86_64_8", rel }, + [R_X86_64_PC8] = { "R_X86_64_PC8", rel }, + [R_X86_64_DTPMOD64] = { "R_X86_64_DTPMOD64", rel }, + [R_X86_64_DTPOFF64] = { "R_X86_64_DTPOFF64", rel }, + [R_X86_64_TPOFF64] = { "R_X86_64_TPOFF64", rel }, + [R_X86_64_TLSGD] = { "R_X86_64_TLSGD", rel }, + [R_X86_64_TLSLD] = { "R_X86_64_TLSLD", rel }, + [R_X86_64_DTPOFF32] = { "R_X86_64_DTPOFF32", rel }, + [R_X86_64_GOTTPOFF] = { "R_X86_64_GOTTPOFF", rel }, + [R_X86_64_TPOFF32] = { "R_X86_64_TPOFF32", rel } + }; + + +/* Determine relocation type string for x86-64. */ +const char * +x86_64_reloc_type_name (int type, char *buf __attribute__ ((unused)), + size_t len __attribute__ ((unused))) +{ + if (type < 0 || type >= R_X86_64_NUM) + return NULL; + + return reloc_map_table[type].name; +} + + +/* Check for correct relocation type. */ +bool +x86_64_reloc_type_check (int type) +{ + return (type >= R_X86_64_NONE && type < R_X86_64_NUM + && reloc_map_table[type].name != NULL) ? true : false; +} + + +/* Check for correct relocation type use. */ +bool +x86_64_reloc_valid_use (Elf *elf, int type) +{ + if (type < R_X86_64_NONE || type >= R_X86_64_NUM + || reloc_map_table[type].name == NULL) + return false; + + Elf64_Ehdr *ehdr = elf64_getehdr (elf); + assert (ehdr != NULL); + + if (reloc_map_table[type].appear == rel) + return ehdr->e_type == ET_REL; + + if (reloc_map_table[type].appear == exec) + return ehdr->e_type != ET_REL; + + assert (reloc_map_table[type].appear == both); + return true; +} + +/* Check for the simple reloc types. */ +Elf_Type +x86_64_reloc_simple_type (Elf *elf __attribute__ ((unused)), int type) +{ + switch (type) + { + case R_X86_64_64: + return ELF_T_XWORD; + case R_X86_64_32: + return ELF_T_WORD; + case R_X86_64_32S: + return ELF_T_SWORD; + case R_X86_64_16: + return ELF_T_HALF; + case R_X86_64_8: + return ELF_T_BYTE; + default: + return ELF_T_NUM; + } +} + +/* Check whether given relocation is a copy relocation. */ +bool +x86_64_copy_reloc_p (int reloc) +{ + return reloc == R_X86_64_COPY; +} diff --git a/libelf-po/.cvsignore b/libelf-po/.cvsignore new file mode 100644 index 0000000..cdbcb6b --- /dev/null +++ b/libelf-po/.cvsignore @@ -0,0 +1 @@ +libelf.pot diff --git a/libelf-po/ChangeLog b/libelf-po/ChangeLog new file mode 100644 index 0000000..42f50a1 --- /dev/null +++ b/libelf-po/ChangeLog @@ -0,0 +1,15 @@ +2005-05-07 Ulrich Drepper + + * Makefile.in.in (XGETTEXT_OPTIONS): Define. + +2004-01-18 Ulrich Drepper + + * Makefile.in.in: Set PACKAGE to libelf. + +2004-01-17 Ulrich Drepper + + * Makefile.in.in: Find mkinstalldirs script in right directory. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/libelf-po/Makefile.in.in b/libelf-po/Makefile.in.in new file mode 100644 index 0000000..aae32e7 --- /dev/null +++ b/libelf-po/Makefile.in.in @@ -0,0 +1,302 @@ +# Makefile for PO directory in any package using GNU gettext. +# Copyright (C) 1995-1997, 2000-2002 by Ulrich Drepper +# +# This file can be copied and used freely without restrictions. It can +# be used in projects which are not available under the GNU General Public +# License but which still want to provide support for the GNU gettext +# functionality. +# Please note that the actual code of GNU gettext is covered by the GNU +# General Public License and is *not* in the public domain. + +PACKAGE = libelf +VERSION = @VERSION@ + +SHELL = /bin/sh +@SET_MAKE@ + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ + +prefix = @prefix@ +exec_prefix = @exec_prefix@ +datadir = @datadir@ +localedir = $(datadir)/locale +gettextsrcdir = $(datadir)/gettext/po +top_builddir = .. + +INSTALL = @INSTALL@ +INSTALL_DATA = @INSTALL_DATA@ +MKINSTALLDIRS = @MKINSTALLDIRS@ +mkinstalldirs = $(SHELL) `case "$(MKINSTALLDIRS)" in /*) echo "$(MKINSTALLDIRS)" ;; *) echo "$(top_builddir)/$(MKINSTALLDIRS)" ;; esac` + +GMSGFMT = @GMSGFMT@ +MSGFMT = @MSGFMT@ +XGETTEXT = @XGETTEXT@ +XGETTEXT_OPTIONS = --flag=error:3:c-format +MSGMERGE = msgmerge +MSGMERGE_UPDATE = @MSGMERGE@ --update +MSGINIT = msginit +MSGCONV = msgconv +MSGFILTER = msgfilter + +POFILES = @POFILES@ +GMOFILES = @GMOFILES@ +UPDATEPOFILES = @UPDATEPOFILES@ +DUMMYPOFILES = @DUMMYPOFILES@ +DISTFILES.common = Makefile.in.in Makevars \ +$(DISTFILES.common.extra1) $(DISTFILES.common.extra2) $(DISTFILES.common.extra3) +DISTFILES = $(DISTFILES.common) POTFILES.in $(DOMAIN).pot \ +$(POFILES) $(GMOFILES) \ +$(DISTFILES.extra1) $(DISTFILES.extra2) $(DISTFILES.extra3) + +POTFILES = \ + +CATALOGS = @CATALOGS@ + +# Makevars gets inserted here. (Don't remove this line!) + +.SUFFIXES: +.SUFFIXES: .po .gmo .mo .nop .po-update + +.po.mo: + $(MSGFMT) -c -o $@ $< + +.po.gmo: + @lang=`echo $* | sed -e 's,.*/,,'`; \ + test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \ + echo "$${cdcmd}rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics -o $${lang}.gmo $${lang}.po"; \ + cd $(srcdir) && rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics -o $${lang}.gmo $${lang}.po + + +all: all-@USE_NLS@ + +all-yes: $(CATALOGS) +all-no: + +# Note: Target 'all' must not depend on target '$(DOMAIN).pot-update', +# otherwise packages like GCC can not be built if only parts of the source +# have been downloaded. + +$(DOMAIN).pot-update: $(POTFILES) $(srcdir)/POTFILES.in + $(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \ + --add-comments=TRANSLATORS: $(XGETTEXT_OPTIONS) \ + --files-from=$(srcdir)/POTFILES.in \ + --copyright-holder='$(COPYRIGHT_HOLDER)' \ + && test ! -f $(DOMAIN).po \ + || ( rm -f $(srcdir)/$(DOMAIN).pot \ + && mv $(DOMAIN).po $(srcdir)/$(DOMAIN).pot ) + +$(srcdir)/$(DOMAIN).pot: + $(MAKE) $(DOMAIN).pot-update + +$(POFILES): $(srcdir)/$(DOMAIN).pot + @lang=`echo $@ | sed -e 's,.*/,,' -e 's/\.po$$//'`; \ + test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \ + echo "$${cdcmd}$(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot"; \ + cd $(srcdir) && $(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot + + +install: install-exec install-data +install-exec: +install-data: install-data-@USE_NLS@ + if test "$(PACKAGE)" = "gettext"; then \ + $(mkinstalldirs) $(DESTDIR)$(gettextsrcdir); \ + for file in $(DISTFILES.common); do \ + $(INSTALL_DATA) $(srcdir)/$$file \ + $(DESTDIR)$(gettextsrcdir)/$$file; \ + done; \ + else \ + : ; \ + fi +install-data-no: all +install-data-yes: all + $(mkinstalldirs) $(DESTDIR)$(datadir) + @catalogs='$(CATALOGS)'; \ + for cat in $$catalogs; do \ + cat=`basename $$cat`; \ + lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \ + dir=$(localedir)/$$lang/LC_MESSAGES; \ + $(mkinstalldirs) $(DESTDIR)$$dir; \ + if test -r $$cat; then realcat=$$cat; else realcat=$(srcdir)/$$cat; fi; \ + $(INSTALL_DATA) $$realcat $(DESTDIR)$$dir/$(DOMAIN).mo; \ + echo "installing $$realcat as $(DESTDIR)$$dir/$(DOMAIN).mo"; \ + for lc in '' $(EXTRA_LOCALE_CATEGORIES); do \ + if test -n "$$lc"; then \ + if (cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc 2>/dev/null) | grep ' -> ' >/dev/null; then \ + link=`cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc | sed -e 's/^.* -> //'`; \ + mv $(DESTDIR)$(localedir)/$$lang/$$lc $(DESTDIR)$(localedir)/$$lang/$$lc.old; \ + mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \ + (cd $(DESTDIR)$(localedir)/$$lang/$$lc.old && \ + for file in *; do \ + if test -f $$file; then \ + ln -s ../$$link/$$file $(DESTDIR)$(localedir)/$$lang/$$lc/$$file; \ + fi; \ + done); \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc.old; \ + else \ + if test -d $(DESTDIR)$(localedir)/$$lang/$$lc; then \ + :; \ + else \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc; \ + mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \ + fi; \ + fi; \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \ + ln -s ../LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo 2>/dev/null || \ + ln $(DESTDIR)$(localedir)/$$lang/LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo 2>/dev/null || \ + cp -p $(DESTDIR)$(localedir)/$$lang/LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \ + echo "installing $$realcat link as $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo"; \ + fi; \ + done; \ + done + +install-strip: install + +installdirs: installdirs-exec installdirs-data +installdirs-exec: +installdirs-data: installdirs-data-@USE_NLS@ + if test "$(PACKAGE)" = "gettext"; then \ + $(mkinstalldirs) $(DESTDIR)$(gettextsrcdir); \ + else \ + : ; \ + fi +installdirs-data-no: +installdirs-data-yes: + $(mkinstalldirs) $(DESTDIR)$(datadir) + @catalogs='$(CATALOGS)'; \ + for cat in $$catalogs; do \ + cat=`basename $$cat`; \ + lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \ + dir=$(localedir)/$$lang/LC_MESSAGES; \ + $(mkinstalldirs) $(DESTDIR)$$dir; \ + for lc in '' $(EXTRA_LOCALE_CATEGORIES); do \ + if test -n "$$lc"; then \ + if (cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc 2>/dev/null) | grep ' -> ' >/dev/null; then \ + link=`cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc | sed -e 's/^.* -> //'`; \ + mv $(DESTDIR)$(localedir)/$$lang/$$lc $(DESTDIR)$(localedir)/$$lang/$$lc.old; \ + mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \ + (cd $(DESTDIR)$(localedir)/$$lang/$$lc.old && \ + for file in *; do \ + if test -f $$file; then \ + ln -s ../$$link/$$file $(DESTDIR)$(localedir)/$$lang/$$lc/$$file; \ + fi; \ + done); \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc.old; \ + else \ + if test -d $(DESTDIR)$(localedir)/$$lang/$$lc; then \ + :; \ + else \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc; \ + mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \ + fi; \ + fi; \ + fi; \ + done; \ + done + +# Define this as empty until I found a useful application. +installcheck: + +uninstall: uninstall-exec uninstall-data +uninstall-exec: +uninstall-data: uninstall-data-@USE_NLS@ + if test "$(PACKAGE)" = "gettext"; then \ + for file in $(DISTFILES.common); do \ + rm -f $(DESTDIR)$(gettextsrcdir)/$$file; \ + done; \ + else \ + : ; \ + fi +uninstall-data-no: +uninstall-data-yes: + catalogs='$(CATALOGS)'; \ + for cat in $$catalogs; do \ + cat=`basename $$cat`; \ + lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \ + for lc in LC_MESSAGES $(EXTRA_LOCALE_CATEGORIES); do \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \ + done; \ + done + +check: all + +dvi info tags TAGS ID: + +mostlyclean: + rm -f core core.* $(DOMAIN).po *.new.po + rm -fr *.o + +clean: mostlyclean + +distclean: clean + rm -f Makefile Makefile.in POTFILES *.mo + +maintainer-clean: distclean + @echo "This command is intended for maintainers to use;" + @echo "it deletes files that may require special tools to rebuild." + rm -f $(GMOFILES) + +distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir) +dist distdir: + $(MAKE) update-po + @$(MAKE) dist2 +# This is a separate target because 'update-po' must be executed before. +dist2: $(DISTFILES) + dists="$(DISTFILES)"; \ + if test -f $(srcdir)/ChangeLog; then dists="$$dists ChangeLog"; fi; \ + if test -f $(srcdir)/LINGUAS; then dists="$$dists LINGUAS"; fi; \ + for file in $$dists; do \ + if test -f $$file; then \ + cp -p $$file $(distdir); \ + else \ + cp -p $(srcdir)/$$file $(distdir); \ + fi; \ + done + +update-po: Makefile + $(MAKE) $(DOMAIN).pot-update + $(MAKE) $(UPDATEPOFILES) + $(MAKE) update-gmo + +# General rule for updating PO files. + +.nop.po-update: + @lang=`echo $@ | sed -e 's/\.po-update$$//'`; \ + if test "$(PACKAGE)" = "gettext"; then PATH=`pwd`/../src:$$PATH; fi; \ + tmpdir=`pwd`; \ + echo "$$lang:"; \ + test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \ + echo "$${cdcmd}$(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$lang.new.po"; \ + cd $(srcdir); \ + if $(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$tmpdir/$$lang.new.po; then \ + if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \ + rm -f $$tmpdir/$$lang.new.po; \ + else \ + if mv -f $$tmpdir/$$lang.new.po $$lang.po; then \ + :; \ + else \ + echo "msgmerge for $$lang.po failed: cannot move $$tmpdir/$$lang.new.po to $$lang.po" 1>&2; \ + exit 1; \ + fi; \ + fi; \ + else \ + echo "msgmerge for $$lang.po failed!" 1>&2; \ + rm -f $$tmpdir/$$lang.new.po; \ + fi + +$(DUMMYPOFILES): + +update-gmo: Makefile $(GMOFILES) + @: + +Makefile: Makefile.in.in $(top_builddir)/config.status POTFILES.in + cd $(top_builddir) \ + && CONFIG_FILES=$(subdir)/$@.in CONFIG_HEADERS= \ + $(SHELL) ./config.status + +force: + +# Tell versions [3.59,3.63) of GNU make not to export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/libelf-po/Makevars b/libelf-po/Makevars new file mode 100644 index 0000000..0accb70 --- /dev/null +++ b/libelf-po/Makevars @@ -0,0 +1,25 @@ +# Makefile variables for PO directory in any package using GNU gettext. + +# Usually the message domain is the same as the package name. +DOMAIN = $(PACKAGE) + +# These two variables depend on the location of this directory. +subdir = po +top_builddir = .. + +# These options get passed to xgettext. +XGETTEXT_OPTIONS = --keyword=_ --keyword=N_ + +# This is the copyright holder that gets inserted into the header of the +# $(DOMAIN).pot file. Set this to the copyright holder of the surrounding +# package. (Note that the msgstr strings, extracted from the package's +# sources, belong to the copyright holder of the package.) Translators are +# expected to transfer the copyright for their translations to this person +# or entity, or to disclaim their copyright. The empty string stands for +# the public domain; in this case the translators are expected to disclaim +# their copyright. +COPYRIGHT_HOLDER = Red Hat, Inc. + +# This is the list of locale categories, beyond LC_MESSAGES, for which the +# message catalogs shall be used. It is usually empty. +EXTRA_LOCALE_CATEGORIES = diff --git a/libelf-po/POTFILES.in b/libelf-po/POTFILES.in new file mode 100644 index 0000000..51d2815 --- /dev/null +++ b/libelf-po/POTFILES.in @@ -0,0 +1,5 @@ +# List of files which containing translatable strings. +# Copyright (C) 2000, 2005 Red Hat, Inc. + +# Library sources +libelf/elf_error.c diff --git a/libelf-po/Rules-quot b/libelf-po/Rules-quot new file mode 100644 index 0000000..5f46d23 --- /dev/null +++ b/libelf-po/Rules-quot @@ -0,0 +1,42 @@ +# Special Makefile rules for English message catalogs with quotation marks. + +DISTFILES.common.extra1 = quot.sed boldquot.sed en@quot.header en@boldquot.header insert-header.sin Rules-quot + +.SUFFIXES: .insert-header .po-update-en + +en@quot.po-update: en@quot.po-update-en +en@boldquot.po-update: en@boldquot.po-update-en + +.insert-header.po-update-en: + @lang=`echo $@ | sed -e 's/\.po-update-en$$//'`; \ + if test "$(PACKAGE)" = "gettext"; then PATH=`pwd`/../src:$$PATH; GETTEXTLIBDIR=`cd $(top_srcdir)/src && pwd`; export GETTEXTLIBDIR; fi; \ + tmpdir=`pwd`; \ + echo "$$lang:"; \ + ll=`echo $$lang | sed -e 's/@.*//'`; \ + LC_ALL=C; export LC_ALL; \ + cd $(srcdir); \ + if $(MSGINIT) -i $(DOMAIN).pot --no-translator -l $$ll -o - 2>/dev/null | sed -f $$tmpdir/$$lang.insert-header | $(MSGCONV) -t UTF-8 | $(MSGFILTER) sed -f `echo $$lang | sed -e 's/.*@//'`.sed 2>/dev/null > $$tmpdir/$$lang.new.po; then \ + if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \ + rm -f $$tmpdir/$$lang.new.po; \ + else \ + if mv -f $$tmpdir/$$lang.new.po $$lang.po; then \ + :; \ + else \ + echo "creation of $$lang.po failed: cannot move $$tmpdir/$$lang.new.po to $$lang.po" 1>&2; \ + exit 1; \ + fi; \ + fi; \ + else \ + echo "creation of $$lang.po failed!" 1>&2; \ + rm -f $$tmpdir/$$lang.new.po; \ + fi + +en@quot.insert-header: insert-header.sin + sed -e '/^#/d' -e 's/HEADER/en@quot.header/g' $(srcdir)/insert-header.sin > en@quot.insert-header + +en@boldquot.insert-header: insert-header.sin + sed -e '/^#/d' -e 's/HEADER/en@boldquot.header/g' $(srcdir)/insert-header.sin > en@boldquot.insert-header + +mostlyclean: mostlyclean-quot +mostlyclean-quot: + rm -f *.insert-header diff --git a/libelf-po/boldquot.sed b/libelf-po/boldquot.sed new file mode 100644 index 0000000..4b937aa --- /dev/null +++ b/libelf-po/boldquot.sed @@ -0,0 +1,10 @@ +s/"\([^"]*\)"/“\1”/g +s/`\([^`']*\)'/‘\1’/g +s/ '\([^`']*\)' / ‘\1’ /g +s/ '\([^`']*\)'$/ ‘\1’/g +s/^'\([^`']*\)' /‘\1’ /g +s/“”/""/g +s/“/“/g +s/”/”/g +s/‘/‘/g +s/’/’/g diff --git a/libelf-po/en@boldquot.header b/libelf-po/en@boldquot.header new file mode 100644 index 0000000..fedb6a0 --- /dev/null +++ b/libelf-po/en@boldquot.header @@ -0,0 +1,25 @@ +# All this catalog "translates" are quotation characters. +# The msgids must be ASCII and therefore cannot contain real quotation +# characters, only substitutes like grave accent (0x60), apostrophe (0x27) +# and double quote (0x22). These substitutes look strange; see +# http://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html +# +# This catalog translates grave accent (0x60) and apostrophe (0x27) to +# left single quotation mark (U+2018) and right single quotation mark (U+2019). +# It also translates pairs of apostrophe (0x27) to +# left single quotation mark (U+2018) and right single quotation mark (U+2019) +# and pairs of quotation mark (0x22) to +# left double quotation mark (U+201C) and right double quotation mark (U+201D). +# +# When output to an UTF-8 terminal, the quotation characters appear perfectly. +# When output to an ISO-8859-1 terminal, the single quotation marks are +# transliterated to apostrophes (by iconv in glibc 2.2 or newer) or to +# grave/acute accent (by libiconv), and the double quotation marks are +# transliterated to 0x22. +# When output to an ASCII terminal, the single quotation marks are +# transliterated to apostrophes, and the double quotation marks are +# transliterated to 0x22. +# +# This catalog furthermore displays the text between the quotation marks in +# bold face, assuming the VT100/XTerm escape sequences. +# diff --git a/libelf-po/en@quot.header b/libelf-po/en@quot.header new file mode 100644 index 0000000..a9647fc --- /dev/null +++ b/libelf-po/en@quot.header @@ -0,0 +1,22 @@ +# All this catalog "translates" are quotation characters. +# The msgids must be ASCII and therefore cannot contain real quotation +# characters, only substitutes like grave accent (0x60), apostrophe (0x27) +# and double quote (0x22). These substitutes look strange; see +# http://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html +# +# This catalog translates grave accent (0x60) and apostrophe (0x27) to +# left single quotation mark (U+2018) and right single quotation mark (U+2019). +# It also translates pairs of apostrophe (0x27) to +# left single quotation mark (U+2018) and right single quotation mark (U+2019) +# and pairs of quotation mark (0x22) to +# left double quotation mark (U+201C) and right double quotation mark (U+201D). +# +# When output to an UTF-8 terminal, the quotation characters appear perfectly. +# When output to an ISO-8859-1 terminal, the single quotation marks are +# transliterated to apostrophes (by iconv in glibc 2.2 or newer) or to +# grave/acute accent (by libiconv), and the double quotation marks are +# transliterated to 0x22. +# When output to an ASCII terminal, the single quotation marks are +# transliterated to apostrophes, and the double quotation marks are +# transliterated to 0x22. +# diff --git a/libelf-po/insert-header.sin b/libelf-po/insert-header.sin new file mode 100644 index 0000000..b26de01 --- /dev/null +++ b/libelf-po/insert-header.sin @@ -0,0 +1,23 @@ +# Sed script that inserts the file called HEADER before the header entry. +# +# At each occurrence of a line starting with "msgid ", we execute the following +# commands. At the first occurrence, insert the file. At the following +# occurrences, do nothing. The distinction between the first and the following +# occurrences is achieved by looking at the hold space. +/^msgid /{ +x +# Test if the hold space is empty. +s/m/m/ +ta +# Yes it was empty. First occurrence. Read the file. +r HEADER +# Output the file's contents by reading the next line. But don't lose the +# current line while doing this. +g +N +bb +:a +# The hold space was nonempty. Following occurrences. Do nothing. +x +:b +} diff --git a/libelf-po/quot.sed b/libelf-po/quot.sed new file mode 100644 index 0000000..0122c46 --- /dev/null +++ b/libelf-po/quot.sed @@ -0,0 +1,6 @@ +s/"\([^"]*\)"/“\1”/g +s/`\([^`']*\)'/‘\1’/g +s/ '\([^`']*\)' / ‘\1’ /g +s/ '\([^`']*\)'$/ ‘\1’/g +s/^'\([^`']*\)' /‘\1’ /g +s/“”/""/g diff --git a/libelf/.cvsignore b/libelf/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/libelf/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/libelf/ChangeLog b/libelf/ChangeLog new file mode 100644 index 0000000..caa2b5b --- /dev/null +++ b/libelf/ChangeLog @@ -0,0 +1,141 @@ +2005-07-23 Ulrich Drepper + + * elf-knowledge.h (SECTION_STRIP_P): Don't handle removal of debug + sections here anymore. + * elf32_checksum.c: Adjust for change in SECTION_STRIP_P interface. + + * elf_update.c (elf_update): Get write lock, not read lock. + + * elf32_updatenull.c (updatenull): Get section headers if necessary + and possible. + +2005-07-22 Ulrich Drepper + + * elf32_updatenull.c (updatenull): If program header hasn't been loaded + yet, try to do it now. + Don't unnecessarily update overflow of section count in zeroth section + sh_size field. + If section content hasn't been read yet, do it before looking for the + block size. If no section data present, infer size of section header. + +2005-05-11 Ulrich Drepper + + * elf.h: Update again. + +2005-05-09 Ulrich Drepper + + * elf.h: Update from glibc. + +2005-05-08 Roland McGrath + + * elf_begin.c (read_file) [_MUDFLAP]: Don't use mmap for now. + * elf_update.c (write_file) [_MUDFLAP]: Likewise. + +2005-03-29 Ulrich Drepper + + * elf32_checksum.c: Use INTUSE and INTDEF to avoid PLTs. + * elf_end.c: Likewise. + * elf_getdata.c: Likewise. + * gelf_getehdr.c: Likewise. + * nlist.c: Likewise. + * libelfP.h: Add declarations of internal functions. + +2005-02-15 Ulrich Drepper + + * common.h (CONVERT): Make sure all values are unsigned. + (CONVERT_TO): Likewise. + + * Makefile.am (AM_CFLAGS): Add -Wformat=2. + Fix rule to build libelf.so. + +2005-02-06 Ulrich Drepper + + * Makefile.am: Cleanup AM_CFLAGS handling. Add -Wunused -Wextra. + Remove lint handling. + * elf32_getphdr.c: Minor cleanups. + * elf32_getshdr.c: Likewise. + * elf32_updatefile.c: Likewise. + * elf32_updatenull.c: Likewise. + * elf_begin.c: Likewise. + * elf_error.c: Likewise. + * elf_getarsym.c: Likewise. + * elf_getdata.c: Likewise. + * elf_update.c: Likewise. + * gelf_xlate.c: Likewise. + +2005-02-05 Ulrich Drepper + + * Makefile.am: Check for text relocations in constructed DSO. + + * Makefile.am [MUDFLAP] (AM_CFLAGS): Add -Werror -fpic -fmudflap. + +2005-02-04 Ulrich Drepper + + * gelf_getehdr.c (gelf_getehdr): Slight optimization. + + * elf32_checksum.c (checksum): Do not look at NOBITS sections. + + * gelf.h: Add gelf_checksum prototype. + +2004-09-25 Ulrich Drepper + + * elf32_checksum.c: Make compile with gcc 4.0. + * elf32_updatefile.c: Likewise. + * elf32_updatenull.c: Likewise. + * elf_begin.c: Likewise. + * elf_error.c: Likewise. + * elf_getdata.c: Likewise. + * elf_getident.c: Likewise. + +2004-04-01 Ulrich Drepper + + * elf.h: Update from glibc. + +2004-01-23 Ulrich Drepper + + * elf_update.c: Fix locking. + * elf_clone.c: Likewise. + + * libelf.h: Define ELF_T_LIB. + * gelf_getlib.c: New file. + * gelf_update_lib.c: New file. + * gelf.h: Declare the new functions. Define GElf_Lib. + * abstract.h: Define Lib, Lib32, Lib64. + * gelf_xlate.c (__elf_xfctstom): Add ELF_T_LIB entry. + * gelf_xlate.h: Add entry for ElfXX_Lib. + * elf_getdata.c: Recognize SHT_GNU_LIBLIST as a known section type. + * libelf.map: Add new symbols to ELFUTILS_1.1. + * Makefile.am (libelf_a_SOURCES): Add gelf_getlib.c and + gelf_update_lib.c. + +2004-01-17 Ulrich Drepper + + * Makefile.am: Support building with mudflap. + + * gelf_xlate.c (INLINE3): Avoid using cast as lvalue. + * dl-hash.h (_dl_elf_hash): Likewise. + +2004-01-05 Ulrich Drepper + + * elf-knowledge.h: New file. From libelf subdir. + * Makefile.am (euincludedir): Define. + (euinclude_HEADERS): Add elf-knowledge.h. + +2003-09-24 Ulrich Drepper + + * elf.h: Define some PT_IA_64_HP_* constants. + +2003-09-23 Jakub Jelinek + + * libelfP.h (struct Elf): Move state.elf64.sizestr_offset after + state.elf64.scnincr to match state.elf{,32}. + +2003-08-12 Ulrich Drepper + + * elf32_updatefile.c (__updatemmap): When writing back file where + some sections have not been read in, count their sizes based on + the section header. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/libelf/Makefile.am b/libelf/Makefile.am new file mode 100644 index 0000000..cf58190 --- /dev/null +++ b/libelf/Makefile.am @@ -0,0 +1,120 @@ +## Process this file with automake to create Makefile.in +## +## Copyright (C) 1996-2001, 2002, 2003, 2004, 2005 Red Hat, Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, version 2. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software Foundation, +## Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +## +DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H +if MUDFLAP +AM_CFLAGS = -fpic -fmudflap +else +AM_CFLAGS = +endif +AM_CFLAGS += -Wall -Wshadow -Werror -Wunused -Wextra -Wformat=2 -std=gnu99 \ + $($(*F)_CFLAGS) +INCLUDES = -I$(srcdir) -I$(top_srcdir)/lib -I.. +GCC_INCLUDE = -I$(shell $(CC) -print-file-name=include) +VERSION = 1 +PACKAGE_VERSION = @PACKAGE_VERSION@ + +lib_LIBRARIES = libelf.a +if !MUDFLAP +noinst_LIBRARIES = libelf_pic.a +noinst_PROGRAMS = $(noinst_LIBRARIES:_pic.a=.so) +endif +include_HEADERS = libelf.h gelf.h nlist.h + +euincludedir = $(includedir)/elfutils +euinclude_HEADERS = elf-knowledge.h + +libelf_a_SOURCES = elf_version.c elf_hash.c elf_error.c elf_fill.c \ + elf_begin.c elf_next.c elf_rand.c elf_end.c elf_kind.c \ + gelf_getclass.c elf_getbase.c elf_getident.c \ + elf32_fsize.c elf64_fsize.c gelf_fsize.c \ + elf32_xlatetof.c elf32_xlatetom.c elf64_xlatetof.c \ + elf64_xlatetom.c gelf_xlate.c \ + elf32_getehdr.c elf64_getehdr.c gelf_getehdr.c \ + elf32_newehdr.c elf64_newehdr.c gelf_newehdr.c \ + gelf_update_ehdr.c \ + elf32_getphdr.c elf64_getphdr.c gelf_getphdr.c \ + elf32_newphdr.c elf64_newphdr.c gelf_newphdr.c \ + gelf_update_phdr.c \ + elf_getarhdr.c elf_getarsym.c \ + elf_rawfile.c elf_readall.c elf_cntl.c \ + elf_getscn.c elf_nextscn.c elf_ndxscn.c elf_newscn.c \ + elf32_getshdr.c elf64_getshdr.c gelf_getshdr.c \ + gelf_update_shdr.c \ + elf_strptr.c elf_rawdata.c elf_getdata.c elf_newdata.c \ + elf_flagelf.c elf_flagehdr.c elf_flagphdr.c elf_flagscn.c \ + elf_flagshdr.c elf_flagdata.c elf_memory.c \ + elf_update.c elf32_updatenull.c elf64_updatenull.c \ + elf32_updatefile.c elf64_updatefile.c \ + gelf_getsym.c gelf_update_sym.c \ + gelf_getversym.c gelf_getverneed.c gelf_getvernaux.c \ + gelf_getverdef.c gelf_getverdaux.c \ + gelf_getrel.c gelf_getrela.c \ + gelf_update_rel.c gelf_update_rela.c \ + gelf_getdyn.c gelf_update_dyn.c \ + gelf_getmove.c gelf_update_move.c \ + gelf_getsyminfo.c gelf_update_syminfo.c \ + gelf_xlatetof.c gelf_xlatetom.c \ + nlist.c \ + gelf_getsymshndx.c gelf_update_symshndx.c \ + gelf_update_versym.c gelf_update_verneed.c \ + gelf_update_vernaux.c gelf_update_verdef.c \ + gelf_update_verdaux.c \ + elf_getshnum.c elf_getshstrndx.c \ + gelf_checksum.c elf32_checksum.c elf64_checksum.c \ + gelf_rawchunk.c gelf_freechunk.c \ + libelf_crc32.c libelf_next_prime.c \ + elf_clone.c \ + gelf_getlib.c gelf_update_lib.c + +if !MUDFLAP +libelf_pic_a_SOURCES = +am_libelf_pic_a_OBJECTS = $(libelf_a_SOURCES:.c=.os) + +libelf_so_SOURCES = +libelf.so: libelf_pic.a libelf.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + -Wl,--version-script,$(srcdir)/libelf.map,--no-undefined \ + -Wl,--soname,$@.$(VERSION),-z,-defs + if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi + ln -fs $@ $@.$(VERSION) + +%.os: %.c %.o + if $(COMPILE) -c -o $@ -fpic -DPIC -DSHARED -MT $@ -MD -MP \ + -MF "$(DEPDIR)/$*.Tpo" `test -f '$<' || echo '$(srcdir)/'`$<; \ + then cat "$(DEPDIR)/$*.Tpo" >> "$(DEPDIR)/$*.Po"; \ + rm -f "$(DEPDIR)/$*.Tpo"; \ + else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \ + fi + +install: install-am libelf.so + $(mkinstalldirs) $(DESTDIR)$(libdir) + $(INSTALL_PROGRAM) libelf.so $(DESTDIR)$(libdir)/libelf-$(PACKAGE_VERSION).so + ln -fs libelf-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libelf.so.$(VERSION) + ln -fs libelf.so.$(VERSION) $(DESTDIR)$(libdir)/libelf.so + +uninstall: uninstall-am + rm -f $(DESTDIR)$(libdir)/libelf-$(PACKAGE_VERSION).so + rm -f $(DESTDIR)$(libdir)/libelf.so.$(VERSION) + rm -f $(DESTDIR)$(libdir)/libelf.so +endif + +noinst_HEADERS = elf.h abstract.h common.h exttypes.h gelf_xlate.h libelfP.h \ + version_xlate.h dl-hash.h +EXTRA_DIST = libelf.map + +CLEANFILES = $(am_libelf_pic_a_OBJECTS) diff --git a/libelf/abstract.h b/libelf/abstract.h new file mode 100644 index 0000000..d14034e --- /dev/null +++ b/libelf/abstract.h @@ -0,0 +1,283 @@ +/* Abstract description of component ELF types. + Copyright (C) 1998, 1999, 2000, 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* ELF header. */ +#define Ehdr(Bits, Ext) \ +START (Bits, Ehdr, Ext##Ehdr) \ + TYPE_EXTRA (unsigned char e_ident[EI_NIDENT];) \ + TYPE_XLATE (memmove (tdest->e_ident, tsrc->e_ident, EI_NIDENT);) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), e_type) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), e_machine) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), e_version) \ + TYPE_NAME (ElfW2(Bits, Ext##Addr), e_entry) \ + TYPE_NAME (ElfW2(Bits, Ext##Off), e_phoff) \ + TYPE_NAME (ElfW2(Bits, Ext##Off), e_shoff) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), e_flags) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), e_ehsize) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), e_phentsize) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), e_phnum) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), e_shentsize) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), e_shnum) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), e_shstrndx) \ +END (Bits, Ext##Ehdr) + +#define Ehdr32(Ext) \ + Ehdr(32, Ext) +#define Ehdr64(Ext) \ + Ehdr(64, Ext) + + +/* Program header. */ +#define Phdr32(Ext) \ +START (32, Phdr, Ext##Phdr) \ + TYPE_NAME (ElfW2(32, Ext##Word), p_type) \ + TYPE_NAME (ElfW2(32, Ext##Off), p_offset) \ + TYPE_NAME (ElfW2(32, Ext##Addr), p_vaddr) \ + TYPE_NAME (ElfW2(32, Ext##Addr), p_paddr) \ + TYPE_NAME (ElfW2(32, Ext##Word), p_filesz) \ + TYPE_NAME (ElfW2(32, Ext##Word), p_memsz) \ + TYPE_NAME (ElfW2(32, Ext##Word), p_flags) \ + TYPE_NAME (ElfW2(32, Ext##Word), p_align) \ +END (32, Ext##Phdr) +#define Phdr64(Ext) \ +START (64, Phdr, Ext##Phdr) \ + TYPE_NAME (ElfW2(64, Ext##Word), p_type) \ + TYPE_NAME (ElfW2(64, Ext##Word), p_flags) \ + TYPE_NAME (ElfW2(64, Ext##Off), p_offset) \ + TYPE_NAME (ElfW2(64, Ext##Addr), p_vaddr) \ + TYPE_NAME (ElfW2(64, Ext##Addr), p_paddr) \ + TYPE_NAME (ElfW2(64, Ext##Xword), p_filesz) \ + TYPE_NAME (ElfW2(64, Ext##Xword), p_memsz) \ + TYPE_NAME (ElfW2(64, Ext##Xword), p_align) \ +END (64, Ext##Phdr) + + +/* Section header. */ +#define Shdr32(Ext) \ +START (32, Shdr, Ext##Shdr) \ + TYPE_NAME (ElfW2(32, Ext##Word), sh_name) \ + TYPE_NAME (ElfW2(32, Ext##Word), sh_type) \ + TYPE_NAME (ElfW2(32, Ext##Word), sh_flags) \ + TYPE_NAME (ElfW2(32, Ext##Addr), sh_addr) \ + TYPE_NAME (ElfW2(32, Ext##Off), sh_offset) \ + TYPE_NAME (ElfW2(32, Ext##Word), sh_size) \ + TYPE_NAME (ElfW2(32, Ext##Word), sh_link) \ + TYPE_NAME (ElfW2(32, Ext##Word), sh_info) \ + TYPE_NAME (ElfW2(32, Ext##Word), sh_addralign) \ + TYPE_NAME (ElfW2(32, Ext##Word), sh_entsize) \ +END (32, Ext##Shdr) +#define Shdr64(Ext) \ +START (64, Shdr, Ext##Shdr) \ + TYPE_NAME (ElfW2(64, Ext##Word), sh_name) \ + TYPE_NAME (ElfW2(64, Ext##Word), sh_type) \ + TYPE_NAME (ElfW2(64, Ext##Xword), sh_flags) \ + TYPE_NAME (ElfW2(64, Ext##Addr), sh_addr) \ + TYPE_NAME (ElfW2(64, Ext##Off), sh_offset) \ + TYPE_NAME (ElfW2(64, Ext##Xword), sh_size) \ + TYPE_NAME (ElfW2(64, Ext##Word), sh_link) \ + TYPE_NAME (ElfW2(64, Ext##Word), sh_info) \ + TYPE_NAME (ElfW2(64, Ext##Xword), sh_addralign) \ + TYPE_NAME (ElfW2(64, Ext##Xword), sh_entsize) \ +END (64, Ext##Shdr) + + +/* Symbol table. */ +#define Sym32(Ext) \ +START (32, Sym, Ext##Sym) \ + TYPE_NAME (ElfW2(32, Ext##Word), st_name) \ + TYPE_NAME (ElfW2(32, Ext##Addr), st_value) \ + TYPE_NAME (ElfW2(32, Ext##Word), st_size) \ + TYPE_EXTRA (unsigned char st_info;) \ + TYPE_XLATE (tdest->st_info = tsrc->st_info;) \ + TYPE_EXTRA (unsigned char st_other;) \ + TYPE_XLATE (tdest->st_other = tsrc->st_other;) \ + TYPE_NAME (ElfW2(32, Ext##Half), st_shndx) \ +END (32, Ext##Sym) +#define Sym64(Ext) \ +START (64, Sym, Ext##Sym) \ + TYPE_NAME (ElfW2(64, Ext##Word), st_name) \ + TYPE_EXTRA (unsigned char st_info;) \ + TYPE_XLATE (tdest->st_info = tsrc->st_info;) \ + TYPE_EXTRA (unsigned char st_other;) \ + TYPE_XLATE (tdest->st_other = tsrc->st_other;) \ + TYPE_NAME (ElfW2(64, Ext##Half), st_shndx) \ + TYPE_NAME (ElfW2(64, Ext##Addr), st_value) \ + TYPE_NAME (ElfW2(64, Ext##Xword), st_size) \ +END (64, Ext##Sym) + + +/* Relocation. */ +#define Rel32(Ext) \ +START (32, Rel, Ext##Rel) \ + TYPE_NAME (ElfW2(32, Ext##Addr), r_offset) \ + TYPE_NAME (ElfW2(32, Ext##Word), r_info) \ +END (32, Ext##Rel) +#define Rel64(Ext) \ +START (64, Rel, Ext##Rel) \ + TYPE_NAME (ElfW2(64, Ext##Addr), r_offset) \ + TYPE_NAME (ElfW2(64, Ext##Xword), r_info) \ +END (64, Ext##Rel) + +#define Rela32(Ext) \ +START (32, Rela, Ext##Rela) \ + TYPE_NAME (ElfW2(32, Ext##Addr), r_offset) \ + TYPE_NAME (ElfW2(32, Ext##Word), r_info) \ + TYPE_NAME (ElfW2(32, Ext##Sword), r_addend) \ +END (32, Ext##Rela) +#define Rela64(Ext) \ +START (64, Rela, Ext##Rela) \ + TYPE_NAME (ElfW2(64, Ext##Addr), r_offset) \ + TYPE_NAME (ElfW2(64, Ext##Xword), r_info) \ + TYPE_NAME (ElfW2(64, Ext##Sxword), r_addend) \ +END (64, Ext##Rela) + + +/* Note entry header. */ +#define Note(Bits, Ext) \ +START (Bits, Nhdr, Ext##Nhdr) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), n_namesz) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), n_descsz) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), n_type) \ +END (Bits, Ext##Nhdr) + +#define Note32(Ext) \ + Note (32, Ext) +#define Note64(Ext) \ + Note (64, Ext) + + +/* Dynamic section data. */ +#define Dyn32(Ext) \ +START (32, Dyn, Ext##Dyn) \ + TYPE_NAME (ElfW2(32, Ext##Sword), d_tag) \ + TYPE_EXTRA (union {) \ + TYPE_EXTRA (ElfW2(32, Ext##Word) d_val;) \ + TYPE_EXTRA (ElfW2(32, Ext##Addr) d_ptr;) \ + TYPE_XLATE (Elf32_cvt_Addr1 (&tdest->d_un.d_val, &tsrc->d_un.d_val);) \ + TYPE_EXTRA (ElfW2(32, Ext##Off) d_off;) \ + TYPE_EXTRA (} d_un;) \ +END (32, Ext##Dyn) +#define Dyn64(Ext) \ +START (64, Dyn, Ext##Dyn) \ + TYPE_NAME (ElfW2(64, Ext##Xword), d_tag) \ + TYPE_EXTRA (union {) \ + TYPE_EXTRA (ElfW2(64, Ext##Xword) d_val;) \ + TYPE_EXTRA (ElfW2(64, Ext##Addr) d_ptr;) \ + TYPE_XLATE (Elf64_cvt_Addr1 (&tdest->d_un.d_val, &tsrc->d_un.d_val);) \ + TYPE_EXTRA (} d_un;) \ +END (64, Ext##Dyn) + + +#ifndef GENERATE_CONVERSION +/* Version definitions. */ +# define Verdef(Bits, Ext) \ +START (Bits, Verdef, Ext##Verdef) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), vd_version) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), vd_flags) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), vd_ndx) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), vd_cnt) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vd_hash) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vd_aux) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vd_next) \ +END (Bits, Ext##Verdef) + +# define Verdef32(Ext) \ + Verdef (32, Ext) +# define Verdef64(Ext) \ + Verdef (64, Ext) + +# define Verdaux(Bits, Ext) \ +START (Bits, Verdaux, Ext##Verdaux) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vda_name) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vda_next) \ +END (Bits, Ext##Verdaux) + +# define Verdaux32(Ext) \ + Verdaux (32, Ext) +# define Verdaux64(Ext) \ + Verdaux (64, Ext) + +/* Required versions. */ +# define Verneed(Bits, Ext) \ +START (Bits, Verneed, Ext##Verneed) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), vn_version) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), vn_cnt) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vn_file) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vn_aux) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vn_next) \ +END (Bits, Ext##Verneed) + +# define Verneed32(Ext) \ + Verneed (32, Ext) +# define Verneed64(Ext) \ + Verneed (64, Ext) + +# define Vernaux(Bits, Ext) \ +START (Bits, Vernaux, Ext##Vernaux) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vna_hash) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), vna_flags) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), vna_other) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vna_name) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), vna_next) \ +END (Bits, Ext##Vernaux) + +# define Vernaux32(Ext) \ + Vernaux (32, Ext) +# define Vernaux64(Ext) \ + Vernaux (64, Ext) +#endif + +/* Symbol information. */ +#define Syminfo(Bits, Ext) \ +START (Bits, Syminfo, Ext##Syminfo) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), si_boundto) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), si_flags) \ +END (Bits, Ext##Syminfo) + +#define Syminfo32(Ext) \ + Syminfo (32, Ext) +#define Syminfo64(Ext) \ + Syminfo (64, Ext) + +/* Move information. */ +#define Move(Bits, Ext) \ +START (Bits, Move, Ext##Move) \ + TYPE_NAME (ElfW2(Bits, Ext##Xword), m_value) \ + TYPE_NAME (ElfW2(Bits, Ext##Xword), m_info) \ + TYPE_NAME (ElfW2(Bits, Ext##Xword), m_poffset) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), m_repeat) \ + TYPE_NAME (ElfW2(Bits, Ext##Half), m_stride) \ +END (Bits, Ext##Move) + +#define Move32(Ext) \ + Move (32, Ext) +#define Move64(Ext) \ + Move (64, Ext) + +#define Lib(Bits, Ext) \ +START (Bits, Lib, Ext##Lib) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), l_name) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), l_time_stamp) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), l_checksum) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), l_version) \ + TYPE_NAME (ElfW2(Bits, Ext##Word), l_flags) \ +END (Bits, Ext##Lib) + +#define Lib32(Ext) \ + Lib (32, Ext) +#define Lib64(Ext) \ + Lib (64, Ext) diff --git a/libelf/common.h b/libelf/common.h new file mode 100644 index 0000000..ac1c61d --- /dev/null +++ b/libelf/common.h @@ -0,0 +1,146 @@ +/* Common definitions for handling files in memory or only on disk. + Copyright (C) 1998, 1999, 2000, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _COMMON_H +#define _COMMON_H 1 + +#include +#include +#include +#include +#include + + +static inline Elf_Kind +determine_kind (void *buf, size_t len) +{ + /* First test for an archive. */ + if (len >= SARMAG && memcmp (buf, ARMAG, SARMAG) == 0) + return ELF_K_AR; + + /* Next try ELF files. */ + if (len >= EI_NIDENT && memcmp (buf, ELFMAG, SELFMAG) == 0) + { + /* Could be an ELF file. */ + int eclass = (int) ((unsigned char *) buf)[EI_CLASS]; + int data = (int) ((unsigned char *) buf)[EI_DATA]; + int version = (int) ((unsigned char *) buf)[EI_VERSION]; + + if (eclass > ELFCLASSNONE && eclass < ELFCLASSNUM + && data > ELFDATANONE && data < ELFDATANUM + && version > EV_NONE && version < EV_NUM) + return ELF_K_ELF; + } + + /* We do not know this file type. */ + return ELF_K_NONE; +} + + +/* Allocate an Elf descriptor and fill in the generic information. */ +static inline Elf * +allocate_elf (int fildes, void *map_address, off_t offset, size_t maxsize, + Elf_Cmd cmd, Elf *parent, Elf_Kind kind, size_t extra) +{ + Elf *result = (Elf *) calloc (1, sizeof (Elf) + extra); + if (result == NULL) + __libelf_seterrno (ELF_E_NOMEM); + else + { + result->kind = kind; + result->ref_count = 1; + result->cmd = cmd; + result->fildes = fildes; + result->start_offset = offset; + result->maximum_size = maxsize; + result->map_address = map_address; + result->parent = parent; + + rwlock_init (result->lock); + } + + return result; +} + + +/* Acquire lock for the descriptor and all children. */ +static void +libelf_acquire_all (Elf *elf) +{ + rwlock_wrlock (elf->lock); + + if (elf->kind == ELF_K_AR) + { + Elf *child = elf->state.ar.children; + + while (child != NULL) + { + if (child->ref_count != 0) + libelf_acquire_all (child); + child = child->next; + } + } +} + +/* Release own lock and those of the children. */ +static void +libelf_release_all (Elf *elf) +{ + if (elf->kind == ELF_K_AR) + { + Elf *child = elf->state.ar.children; + + while (child != NULL) + { + if (child->ref_count != 0) + libelf_release_all (child); + child = child->next; + } + } + + rwlock_unlock (elf->lock); +} + + +/* Macro to convert endianess in place. It determines the function it + has to use itself. */ +#define CONVERT(Var) \ + (Var) = (sizeof (Var) == 1 \ + ? (unsigned char) (Var) \ + : (sizeof (Var) == 2 \ + ? bswap_16 (Var) \ + : (sizeof (Var) == 4 \ + ? bswap_32 (Var) \ + : bswap_64 (Var)))) + +#define CONVERT_TO(Dst, Var) \ + (Dst) = (sizeof (Var) == 1 \ + ? (unsigned char) (Var) \ + : (sizeof (Var) == 2 \ + ? bswap_16 (Var) \ + : (sizeof (Var) == 4 \ + ? bswap_32 (Var) \ + : bswap_64 (Var)))) + + +#if __BYTE_ORDER == __LITTLE_ENDIAN +# define MY_ELFDATA ELFDATA2LSB +#else +# define MY_ELFDATA ELFDATA2MSB +#endif + +#endif /* common.h */ diff --git a/libelf/dl-hash.h b/libelf/dl-hash.h new file mode 100644 index 0000000..c8e8962 --- /dev/null +++ b/libelf/dl-hash.h @@ -0,0 +1,70 @@ +/* Compute hash value for given string according to ELF standard. + Copyright (C) 1995-1998, 2002, 2004 Free Software Foundation, Inc. + Written by Ulrich Drepper , 1995. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _DL_HASH_H +#define _DL_HASH_H 1 + + +/* This is the hashing function specified by the ELF ABI. In the + first five operations no overflow is possible so we optimized it a + bit. */ +static inline unsigned int +__attribute__ ((__pure__)) +_dl_elf_hash (const char *name) +{ + const unsigned char *iname = (const unsigned char *) name; + unsigned int hash = (unsigned int) *iname++; + if (*iname != '\0') + { + hash = (hash << 4) + (unsigned int) *iname++; + if (*iname != '\0') + { + hash = (hash << 4) + (unsigned int) *iname++; + if (*iname != '\0') + { + hash = (hash << 4) + (unsigned int) *iname++; + if (*iname != '\0') + { + hash = (hash << 4) + (unsigned int) *iname++; + while (*iname != '\0') + { + unsigned int hi; + hash = (hash << 4) + (unsigned int) *iname++; + hi = hash & 0xf0000000; + + /* The algorithm specified in the ELF ABI is as + follows: + + if (hi != 0) + hash ^= hi >> 24; + + hash &= ~hi; + + But the following is equivalent and a lot + faster, especially on modern processors. */ + + hash ^= hi; + hash ^= hi >> 24; + } + } + } + } + } + return hash; +} + +#endif /* dl-hash.h */ diff --git a/libelf/elf-knowledge.h b/libelf/elf-knowledge.h new file mode 100644 index 0000000..b92fd8a --- /dev/null +++ b/libelf/elf-knowledge.h @@ -0,0 +1,94 @@ +/* Accumulation of various pieces of knowledge about ELF. + Copyright (C) 2000, 2001, 2002, 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _ELF_KNOWLEDGE_H +#define _ELF_KNOWLEDGE_H 1 + +#include + + +/* Test whether a section can be stripped or not. */ +#define SECTION_STRIP_P(shdr, name, remove_comment) \ + /* Sections which are allocated are not removed. */ \ + (((shdr)->sh_flags & SHF_ALLOC) == 0 \ + /* We never remove .note sections. */ \ + && (shdr)->sh_type != SHT_NOTE \ + && (((shdr)->sh_type) != SHT_PROGBITS \ + /* Never remove .gnu.warning.* sections. */ \ + || (strncmp (name, ".gnu.warning.", sizeof ".gnu.warning." - 1) != 0 \ + /* We remove .comment sections only if explicitly told to do so. */\ + && (remove_comment \ + || strcmp (name, ".comment") != 0))) \ + /* So far we do not remove any of the non-standard sections. \ + XXX Maybe in future. */ \ + && (shdr)->sh_type < SHT_NUM) + + +/* Test whether `sh_info' field in section header contains a section + index. There are two kinds of sections doing this: + + - the sections containing relocation information reference in this + field the section to which the relocations apply; + + - section with the SHF_INFO_LINK flag set to signal that `sh_info' + references a section. This allows correct handling of unknown + sections. */ +#define SH_INFO_LINK_P(Shdr) \ + ((Shdr)->sh_type == SHT_REL || (Shdr)->sh_type == SHT_RELA \ + || ((Shdr)->sh_flags & SHF_INFO_LINK) != 0) + + +/* When combining ELF section flags we must distinguish two kinds: + + - flags which cause problem if not added to the result even if not + present in all input sections + + - flags which cause problem if added to the result if not present + in all input sections + + The following definition is for the general case. There might be + machine specific extensions. */ +#define SH_FLAGS_COMBINE(Flags1, Flags2) \ + (((Flags1 | Flags2) \ + & (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR | SHF_LINK_ORDER \ + | SHF_OS_NONCONFORMING | SHF_GROUP)) \ + | (Flags1 & Flags2 & (SHF_MERGE | SHF_STRINGS | SHF_INFO_LINK))) + +/* Similar macro: return the bits of the flags which necessarily must + match if two sections are automatically combined. Sections still + can be forcefully combined in which case SH_FLAGS_COMBINE can be + used to determine the combined flags. */ +#define SH_FLAGS_IMPORTANT(Flags) \ + ((Flags) & ~((GElf_Xword) 0 | SHF_LINK_ORDER | SHF_OS_NONCONFORMING)) + + +/* Size of an entry in the hash table. The ELF specification says all + entries are regardless of platform 32-bits in size. Early 64-bit + ports (namely Alpha for Linux) got this wrong. The wording was not + clear. + + Several years later the ABI for the 64-bit S390s was developed. + Many things were copied from the IA-64 ABI (which uses the correct + 32-bit entry size) but what do these people do? They use 64-bit + entries. It is really shocking to see what kind of morons are out + there. And even worse: they are allowed to design ABIs. */ +#define SH_ENTSIZE_HASH(Ehdr) \ + ((Ehdr)->e_machine == EM_ALPHA \ + || ((Ehdr)->e_machine == EM_S390 \ + && (Ehdr)->e_ident[EI_CLASS] == ELFCLASS64) ? 8 : 4) + +#endif /* elf-knowledge.h */ diff --git a/libelf/elf.h b/libelf/elf.h new file mode 100644 index 0000000..e246519 --- /dev/null +++ b/libelf/elf.h @@ -0,0 +1,2577 @@ +/* This file defines standard ELF types, structures, and macros. + Copyright (C) 1995-2003, 2004, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _ELF_H +#define _ELF_H 1 + +#include + +__BEGIN_DECLS + +/* Standard ELF types. */ + +#include + +/* Type for a 16-bit quantity. */ +typedef uint16_t Elf32_Half; +typedef uint16_t Elf64_Half; + +/* Types for signed and unsigned 32-bit quantities. */ +typedef uint32_t Elf32_Word; +typedef int32_t Elf32_Sword; +typedef uint32_t Elf64_Word; +typedef int32_t Elf64_Sword; + +/* Types for signed and unsigned 64-bit quantities. */ +typedef uint64_t Elf32_Xword; +typedef int64_t Elf32_Sxword; +typedef uint64_t Elf64_Xword; +typedef int64_t Elf64_Sxword; + +/* Type of addresses. */ +typedef uint32_t Elf32_Addr; +typedef uint64_t Elf64_Addr; + +/* Type of file offsets. */ +typedef uint32_t Elf32_Off; +typedef uint64_t Elf64_Off; + +/* Type for section indices, which are 16-bit quantities. */ +typedef uint16_t Elf32_Section; +typedef uint16_t Elf64_Section; + +/* Type for version symbol information. */ +typedef Elf32_Half Elf32_Versym; +typedef Elf64_Half Elf64_Versym; + + +/* The ELF file header. This appears at the start of every ELF file. */ + +#define EI_NIDENT (16) + +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf32_Half e_type; /* Object file type */ + Elf32_Half e_machine; /* Architecture */ + Elf32_Word e_version; /* Object file version */ + Elf32_Addr e_entry; /* Entry point virtual address */ + Elf32_Off e_phoff; /* Program header table file offset */ + Elf32_Off e_shoff; /* Section header table file offset */ + Elf32_Word e_flags; /* Processor-specific flags */ + Elf32_Half e_ehsize; /* ELF header size in bytes */ + Elf32_Half e_phentsize; /* Program header table entry size */ + Elf32_Half e_phnum; /* Program header table entry count */ + Elf32_Half e_shentsize; /* Section header table entry size */ + Elf32_Half e_shnum; /* Section header table entry count */ + Elf32_Half e_shstrndx; /* Section header string table index */ +} Elf32_Ehdr; + +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf64_Half e_type; /* Object file type */ + Elf64_Half e_machine; /* Architecture */ + Elf64_Word e_version; /* Object file version */ + Elf64_Addr e_entry; /* Entry point virtual address */ + Elf64_Off e_phoff; /* Program header table file offset */ + Elf64_Off e_shoff; /* Section header table file offset */ + Elf64_Word e_flags; /* Processor-specific flags */ + Elf64_Half e_ehsize; /* ELF header size in bytes */ + Elf64_Half e_phentsize; /* Program header table entry size */ + Elf64_Half e_phnum; /* Program header table entry count */ + Elf64_Half e_shentsize; /* Section header table entry size */ + Elf64_Half e_shnum; /* Section header table entry count */ + Elf64_Half e_shstrndx; /* Section header string table index */ +} Elf64_Ehdr; + +/* Fields in the e_ident array. The EI_* macros are indices into the + array. The macros under each EI_* macro are the values the byte + may have. */ + +#define EI_MAG0 0 /* File identification byte 0 index */ +#define ELFMAG0 0x7f /* Magic number byte 0 */ + +#define EI_MAG1 1 /* File identification byte 1 index */ +#define ELFMAG1 'E' /* Magic number byte 1 */ + +#define EI_MAG2 2 /* File identification byte 2 index */ +#define ELFMAG2 'L' /* Magic number byte 2 */ + +#define EI_MAG3 3 /* File identification byte 3 index */ +#define ELFMAG3 'F' /* Magic number byte 3 */ + +/* Conglomeration of the identification bytes, for easy testing as a word. */ +#define ELFMAG "\177ELF" +#define SELFMAG 4 + +#define EI_CLASS 4 /* File class byte index */ +#define ELFCLASSNONE 0 /* Invalid class */ +#define ELFCLASS32 1 /* 32-bit objects */ +#define ELFCLASS64 2 /* 64-bit objects */ +#define ELFCLASSNUM 3 + +#define EI_DATA 5 /* Data encoding byte index */ +#define ELFDATANONE 0 /* Invalid data encoding */ +#define ELFDATA2LSB 1 /* 2's complement, little endian */ +#define ELFDATA2MSB 2 /* 2's complement, big endian */ +#define ELFDATANUM 3 + +#define EI_VERSION 6 /* File version byte index */ + /* Value must be EV_CURRENT */ + +#define EI_OSABI 7 /* OS ABI identification */ +#define ELFOSABI_NONE 0 /* UNIX System V ABI */ +#define ELFOSABI_SYSV 0 /* Alias. */ +#define ELFOSABI_HPUX 1 /* HP-UX */ +#define ELFOSABI_NETBSD 2 /* NetBSD. */ +#define ELFOSABI_LINUX 3 /* Linux. */ +#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */ +#define ELFOSABI_AIX 7 /* IBM AIX. */ +#define ELFOSABI_IRIX 8 /* SGI Irix. */ +#define ELFOSABI_FREEBSD 9 /* FreeBSD. */ +#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */ +#define ELFOSABI_MODESTO 11 /* Novell Modesto. */ +#define ELFOSABI_OPENBSD 12 /* OpenBSD. */ +#define ELFOSABI_ARM 97 /* ARM */ +#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ + +#define EI_ABIVERSION 8 /* ABI version */ + +#define EI_PAD 9 /* Byte index of padding bytes */ + +/* Legal values for e_type (object file type). */ + +#define ET_NONE 0 /* No file type */ +#define ET_REL 1 /* Relocatable file */ +#define ET_EXEC 2 /* Executable file */ +#define ET_DYN 3 /* Shared object file */ +#define ET_CORE 4 /* Core file */ +#define ET_NUM 5 /* Number of defined types */ +#define ET_LOOS 0xfe00 /* OS-specific range start */ +#define ET_HIOS 0xfeff /* OS-specific range end */ +#define ET_LOPROC 0xff00 /* Processor-specific range start */ +#define ET_HIPROC 0xffff /* Processor-specific range end */ + +/* Legal values for e_machine (architecture). */ + +#define EM_NONE 0 /* No machine */ +#define EM_M32 1 /* AT&T WE 32100 */ +#define EM_SPARC 2 /* SUN SPARC */ +#define EM_386 3 /* Intel 80386 */ +#define EM_68K 4 /* Motorola m68k family */ +#define EM_88K 5 /* Motorola m88k family */ +#define EM_860 7 /* Intel 80860 */ +#define EM_MIPS 8 /* MIPS R3000 big-endian */ +#define EM_S370 9 /* IBM System/370 */ +#define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian */ + +#define EM_PARISC 15 /* HPPA */ +#define EM_VPP500 17 /* Fujitsu VPP500 */ +#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ +#define EM_960 19 /* Intel 80960 */ +#define EM_PPC 20 /* PowerPC */ +#define EM_PPC64 21 /* PowerPC 64-bit */ +#define EM_S390 22 /* IBM S390 */ + +#define EM_V800 36 /* NEC V800 series */ +#define EM_FR20 37 /* Fujitsu FR20 */ +#define EM_RH32 38 /* TRW RH-32 */ +#define EM_RCE 39 /* Motorola RCE */ +#define EM_ARM 40 /* ARM */ +#define EM_FAKE_ALPHA 41 /* Digital Alpha */ +#define EM_SH 42 /* Hitachi SH */ +#define EM_SPARCV9 43 /* SPARC v9 64-bit */ +#define EM_TRICORE 44 /* Siemens Tricore */ +#define EM_ARC 45 /* Argonaut RISC Core */ +#define EM_H8_300 46 /* Hitachi H8/300 */ +#define EM_H8_300H 47 /* Hitachi H8/300H */ +#define EM_H8S 48 /* Hitachi H8S */ +#define EM_H8_500 49 /* Hitachi H8/500 */ +#define EM_IA_64 50 /* Intel Merced */ +#define EM_MIPS_X 51 /* Stanford MIPS-X */ +#define EM_COLDFIRE 52 /* Motorola Coldfire */ +#define EM_68HC12 53 /* Motorola M68HC12 */ +#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/ +#define EM_PCP 55 /* Siemens PCP */ +#define EM_NCPU 56 /* Sony nCPU embeeded RISC */ +#define EM_NDR1 57 /* Denso NDR1 microprocessor */ +#define EM_STARCORE 58 /* Motorola Start*Core processor */ +#define EM_ME16 59 /* Toyota ME16 processor */ +#define EM_ST100 60 /* STMicroelectronic ST100 processor */ +#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/ +#define EM_X86_64 62 /* AMD x86-64 architecture */ +#define EM_PDSP 63 /* Sony DSP Processor */ + +#define EM_FX66 66 /* Siemens FX66 microcontroller */ +#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ +#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ +#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ +#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ +#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ +#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ +#define EM_SVX 73 /* Silicon Graphics SVx */ +#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ +#define EM_VAX 75 /* Digital VAX */ +#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ +#define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */ +#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ +#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ +#define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ +#define EM_HUANY 81 /* Harvard University machine-independent object files */ +#define EM_PRISM 82 /* SiTera Prism */ +#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ +#define EM_FR30 84 /* Fujitsu FR30 */ +#define EM_D10V 85 /* Mitsubishi D10V */ +#define EM_D30V 86 /* Mitsubishi D30V */ +#define EM_V850 87 /* NEC v850 */ +#define EM_M32R 88 /* Mitsubishi M32R */ +#define EM_MN10300 89 /* Matsushita MN10300 */ +#define EM_MN10200 90 /* Matsushita MN10200 */ +#define EM_PJ 91 /* picoJava */ +#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ +#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ +#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ +#define EM_NUM 95 + +/* If it is necessary to assign new unofficial EM_* values, please + pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the + chances of collision with official or non-GNU unofficial values. */ + +#define EM_ALPHA 0x9026 + +/* Legal values for e_version (version). */ + +#define EV_NONE 0 /* Invalid ELF version */ +#define EV_CURRENT 1 /* Current version */ +#define EV_NUM 2 + +/* Section header. */ + +typedef struct +{ + Elf32_Word sh_name; /* Section name (string tbl index) */ + Elf32_Word sh_type; /* Section type */ + Elf32_Word sh_flags; /* Section flags */ + Elf32_Addr sh_addr; /* Section virtual addr at execution */ + Elf32_Off sh_offset; /* Section file offset */ + Elf32_Word sh_size; /* Section size in bytes */ + Elf32_Word sh_link; /* Link to another section */ + Elf32_Word sh_info; /* Additional section information */ + Elf32_Word sh_addralign; /* Section alignment */ + Elf32_Word sh_entsize; /* Entry size if section holds table */ +} Elf32_Shdr; + +typedef struct +{ + Elf64_Word sh_name; /* Section name (string tbl index) */ + Elf64_Word sh_type; /* Section type */ + Elf64_Xword sh_flags; /* Section flags */ + Elf64_Addr sh_addr; /* Section virtual addr at execution */ + Elf64_Off sh_offset; /* Section file offset */ + Elf64_Xword sh_size; /* Section size in bytes */ + Elf64_Word sh_link; /* Link to another section */ + Elf64_Word sh_info; /* Additional section information */ + Elf64_Xword sh_addralign; /* Section alignment */ + Elf64_Xword sh_entsize; /* Entry size if section holds table */ +} Elf64_Shdr; + +/* Special section indices. */ + +#define SHN_UNDEF 0 /* Undefined section */ +#define SHN_LORESERVE 0xff00 /* Start of reserved indices */ +#define SHN_LOPROC 0xff00 /* Start of processor-specific */ +#define SHN_BEFORE 0xff00 /* Order section before all others + (Solaris). */ +#define SHN_AFTER 0xff01 /* Order section after all others + (Solaris). */ +#define SHN_HIPROC 0xff1f /* End of processor-specific */ +#define SHN_LOOS 0xff20 /* Start of OS-specific */ +#define SHN_HIOS 0xff3f /* End of OS-specific */ +#define SHN_ABS 0xfff1 /* Associated symbol is absolute */ +#define SHN_COMMON 0xfff2 /* Associated symbol is common */ +#define SHN_XINDEX 0xffff /* Index is in extra table. */ +#define SHN_HIRESERVE 0xffff /* End of reserved indices */ + +/* Legal values for sh_type (section type). */ + +#define SHT_NULL 0 /* Section header table entry unused */ +#define SHT_PROGBITS 1 /* Program data */ +#define SHT_SYMTAB 2 /* Symbol table */ +#define SHT_STRTAB 3 /* String table */ +#define SHT_RELA 4 /* Relocation entries with addends */ +#define SHT_HASH 5 /* Symbol hash table */ +#define SHT_DYNAMIC 6 /* Dynamic linking information */ +#define SHT_NOTE 7 /* Notes */ +#define SHT_NOBITS 8 /* Program space with no data (bss) */ +#define SHT_REL 9 /* Relocation entries, no addends */ +#define SHT_SHLIB 10 /* Reserved */ +#define SHT_DYNSYM 11 /* Dynamic linker symbol table */ +#define SHT_INIT_ARRAY 14 /* Array of constructors */ +#define SHT_FINI_ARRAY 15 /* Array of destructors */ +#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */ +#define SHT_GROUP 17 /* Section group */ +#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */ +#define SHT_NUM 19 /* Number of defined types. */ +#define SHT_LOOS 0x60000000 /* Start OS-specific */ +#define SHT_GNU_LIBLIST 0x6ffffff7 /* Prelink library list */ +#define SHT_CHECKSUM 0x6ffffff8 /* Checksum for DSO content. */ +#define SHT_LOSUNW 0x6ffffffa /* Sun-specific low bound. */ +#define SHT_SUNW_move 0x6ffffffa +#define SHT_SUNW_COMDAT 0x6ffffffb +#define SHT_SUNW_syminfo 0x6ffffffc +#define SHT_GNU_verdef 0x6ffffffd /* Version definition section. */ +#define SHT_GNU_verneed 0x6ffffffe /* Version needs section. */ +#define SHT_GNU_versym 0x6fffffff /* Version symbol table. */ +#define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */ +#define SHT_HIOS 0x6fffffff /* End OS-specific type */ +#define SHT_LOPROC 0x70000000 /* Start of processor-specific */ +#define SHT_HIPROC 0x7fffffff /* End of processor-specific */ +#define SHT_LOUSER 0x80000000 /* Start of application-specific */ +#define SHT_HIUSER 0x8fffffff /* End of application-specific */ + +/* Legal values for sh_flags (section flags). */ + +#define SHF_WRITE (1 << 0) /* Writable */ +#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ +#define SHF_EXECINSTR (1 << 2) /* Executable */ +#define SHF_MERGE (1 << 4) /* Might be merged */ +#define SHF_STRINGS (1 << 5) /* Contains nul-terminated strings */ +#define SHF_INFO_LINK (1 << 6) /* `sh_info' contains SHT index */ +#define SHF_LINK_ORDER (1 << 7) /* Preserve order after combining */ +#define SHF_OS_NONCONFORMING (1 << 8) /* Non-standard OS specific handling + required */ +#define SHF_GROUP (1 << 9) /* Section is member of a group. */ +#define SHF_TLS (1 << 10) /* Section hold thread-local data. */ +#define SHF_MASKOS 0x0ff00000 /* OS-specific. */ +#define SHF_MASKPROC 0xf0000000 /* Processor-specific */ +#define SHF_ORDERED (1 << 30) /* Special ordering requirement + (Solaris). */ +#define SHF_EXCLUDE (1 << 31) /* Section is excluded unless + referenced or allocated (Solaris).*/ + +/* Section group handling. */ +#define GRP_COMDAT 0x1 /* Mark group as COMDAT. */ + +/* Symbol table entry. */ + +typedef struct +{ + Elf32_Word st_name; /* Symbol name (string tbl index) */ + Elf32_Addr st_value; /* Symbol value */ + Elf32_Word st_size; /* Symbol size */ + unsigned char st_info; /* Symbol type and binding */ + unsigned char st_other; /* Symbol visibility */ + Elf32_Section st_shndx; /* Section index */ +} Elf32_Sym; + +typedef struct +{ + Elf64_Word st_name; /* Symbol name (string tbl index) */ + unsigned char st_info; /* Symbol type and binding */ + unsigned char st_other; /* Symbol visibility */ + Elf64_Section st_shndx; /* Section index */ + Elf64_Addr st_value; /* Symbol value */ + Elf64_Xword st_size; /* Symbol size */ +} Elf64_Sym; + +/* The syminfo section if available contains additional information about + every dynamic symbol. */ + +typedef struct +{ + Elf32_Half si_boundto; /* Direct bindings, symbol bound to */ + Elf32_Half si_flags; /* Per symbol flags */ +} Elf32_Syminfo; + +typedef struct +{ + Elf64_Half si_boundto; /* Direct bindings, symbol bound to */ + Elf64_Half si_flags; /* Per symbol flags */ +} Elf64_Syminfo; + +/* Possible values for si_boundto. */ +#define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */ +#define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */ +#define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */ + +/* Possible bitmasks for si_flags. */ +#define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */ +#define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */ +#define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */ +#define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy + loaded */ +/* Syminfo version values. */ +#define SYMINFO_NONE 0 +#define SYMINFO_CURRENT 1 +#define SYMINFO_NUM 2 + + +/* How to extract and insert information held in the st_info field. */ + +#define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4) +#define ELF32_ST_TYPE(val) ((val) & 0xf) +#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) + +/* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */ +#define ELF64_ST_BIND(val) ELF32_ST_BIND (val) +#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) +#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) + +/* Legal values for ST_BIND subfield of st_info (symbol binding). */ + +#define STB_LOCAL 0 /* Local symbol */ +#define STB_GLOBAL 1 /* Global symbol */ +#define STB_WEAK 2 /* Weak symbol */ +#define STB_NUM 3 /* Number of defined types. */ +#define STB_LOOS 10 /* Start of OS-specific */ +#define STB_HIOS 12 /* End of OS-specific */ +#define STB_LOPROC 13 /* Start of processor-specific */ +#define STB_HIPROC 15 /* End of processor-specific */ + +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ + +#define STT_NOTYPE 0 /* Symbol type is unspecified */ +#define STT_OBJECT 1 /* Symbol is a data object */ +#define STT_FUNC 2 /* Symbol is a code object */ +#define STT_SECTION 3 /* Symbol associated with a section */ +#define STT_FILE 4 /* Symbol's name is file name */ +#define STT_COMMON 5 /* Symbol is a common data object */ +#define STT_TLS 6 /* Symbol is thread-local data object*/ +#define STT_NUM 7 /* Number of defined types. */ +#define STT_LOOS 10 /* Start of OS-specific */ +#define STT_HIOS 12 /* End of OS-specific */ +#define STT_LOPROC 13 /* Start of processor-specific */ +#define STT_HIPROC 15 /* End of processor-specific */ + + +/* Symbol table indices are found in the hash buckets and chain table + of a symbol hash table section. This special index value indicates + the end of a chain, meaning no further symbols are found in that bucket. */ + +#define STN_UNDEF 0 /* End of a chain. */ + + +/* How to extract and insert information held in the st_other field. */ + +#define ELF32_ST_VISIBILITY(o) ((o) & 0x03) + +/* For ELF64 the definitions are the same. */ +#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o) + +/* Symbol visibility specification encoded in the st_other field. */ +#define STV_DEFAULT 0 /* Default symbol visibility rules */ +#define STV_INTERNAL 1 /* Processor specific hidden class */ +#define STV_HIDDEN 2 /* Sym unavailable in other modules */ +#define STV_PROTECTED 3 /* Not preemptible, not exported */ + + +/* Relocation table entry without addend (in section of type SHT_REL). */ + +typedef struct +{ + Elf32_Addr r_offset; /* Address */ + Elf32_Word r_info; /* Relocation type and symbol index */ +} Elf32_Rel; + +/* I have seen two different definitions of the Elf64_Rel and + Elf64_Rela structures, so we'll leave them out until Novell (or + whoever) gets their act together. */ +/* The following, at least, is used on Sparc v9, MIPS, and Alpha. */ + +typedef struct +{ + Elf64_Addr r_offset; /* Address */ + Elf64_Xword r_info; /* Relocation type and symbol index */ +} Elf64_Rel; + +/* Relocation table entry with addend (in section of type SHT_RELA). */ + +typedef struct +{ + Elf32_Addr r_offset; /* Address */ + Elf32_Word r_info; /* Relocation type and symbol index */ + Elf32_Sword r_addend; /* Addend */ +} Elf32_Rela; + +typedef struct +{ + Elf64_Addr r_offset; /* Address */ + Elf64_Xword r_info; /* Relocation type and symbol index */ + Elf64_Sxword r_addend; /* Addend */ +} Elf64_Rela; + +/* How to extract and insert information held in the r_info field. */ + +#define ELF32_R_SYM(val) ((val) >> 8) +#define ELF32_R_TYPE(val) ((val) & 0xff) +#define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff)) + +#define ELF64_R_SYM(i) ((i) >> 32) +#define ELF64_R_TYPE(i) ((i) & 0xffffffff) +#define ELF64_R_INFO(sym,type) ((((Elf64_Xword) (sym)) << 32) + (type)) + +/* Program segment header. */ + +typedef struct +{ + Elf32_Word p_type; /* Segment type */ + Elf32_Off p_offset; /* Segment file offset */ + Elf32_Addr p_vaddr; /* Segment virtual address */ + Elf32_Addr p_paddr; /* Segment physical address */ + Elf32_Word p_filesz; /* Segment size in file */ + Elf32_Word p_memsz; /* Segment size in memory */ + Elf32_Word p_flags; /* Segment flags */ + Elf32_Word p_align; /* Segment alignment */ +} Elf32_Phdr; + +typedef struct +{ + Elf64_Word p_type; /* Segment type */ + Elf64_Word p_flags; /* Segment flags */ + Elf64_Off p_offset; /* Segment file offset */ + Elf64_Addr p_vaddr; /* Segment virtual address */ + Elf64_Addr p_paddr; /* Segment physical address */ + Elf64_Xword p_filesz; /* Segment size in file */ + Elf64_Xword p_memsz; /* Segment size in memory */ + Elf64_Xword p_align; /* Segment alignment */ +} Elf64_Phdr; + +/* Legal values for p_type (segment type). */ + +#define PT_NULL 0 /* Program header table entry unused */ +#define PT_LOAD 1 /* Loadable program segment */ +#define PT_DYNAMIC 2 /* Dynamic linking information */ +#define PT_INTERP 3 /* Program interpreter */ +#define PT_NOTE 4 /* Auxiliary information */ +#define PT_SHLIB 5 /* Reserved */ +#define PT_PHDR 6 /* Entry for header table itself */ +#define PT_TLS 7 /* Thread-local storage segment */ +#define PT_NUM 8 /* Number of defined types */ +#define PT_LOOS 0x60000000 /* Start of OS-specific */ +#define PT_GNU_EH_FRAME 0x6474e550 /* GCC .eh_frame_hdr segment */ +#define PT_GNU_STACK 0x6474e551 /* Indicates stack executability */ +#define PT_GNU_RELRO 0x6474e552 /* Read-only after relocation */ +#define PT_LOSUNW 0x6ffffffa +#define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */ +#define PT_SUNWSTACK 0x6ffffffb /* Stack segment */ +#define PT_HISUNW 0x6fffffff +#define PT_HIOS 0x6fffffff /* End of OS-specific */ +#define PT_LOPROC 0x70000000 /* Start of processor-specific */ +#define PT_HIPROC 0x7fffffff /* End of processor-specific */ + +/* Legal values for p_flags (segment flags). */ + +#define PF_X (1 << 0) /* Segment is executable */ +#define PF_W (1 << 1) /* Segment is writable */ +#define PF_R (1 << 2) /* Segment is readable */ +#define PF_MASKOS 0x0ff00000 /* OS-specific */ +#define PF_MASKPROC 0xf0000000 /* Processor-specific */ + +/* Legal values for note segment descriptor types for core files. */ + +#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ +#define NT_FPREGSET 2 /* Contains copy of fpregset struct */ +#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ +#define NT_PRXREG 4 /* Contains copy of prxregset struct */ +#define NT_TASKSTRUCT 4 /* Contains copy of task structure */ +#define NT_PLATFORM 5 /* String from sysinfo(SI_PLATFORM) */ +#define NT_AUXV 6 /* Contains copy of auxv array */ +#define NT_GWINDOWS 7 /* Contains copy of gwindows struct */ +#define NT_ASRS 8 /* Contains copy of asrset struct */ +#define NT_PSTATUS 10 /* Contains copy of pstatus struct */ +#define NT_PSINFO 13 /* Contains copy of psinfo struct */ +#define NT_PRCRED 14 /* Contains copy of prcred struct */ +#define NT_UTSNAME 15 /* Contains copy of utsname struct */ +#define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */ +#define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */ +#define NT_PRFPXREG 20 /* Contains copy of fprxregset struct*/ + +/* Legal values for the note segment descriptor types for object files. */ + +#define NT_VERSION 1 /* Contains a version string. */ + + +/* Dynamic section entry. */ + +typedef struct +{ + Elf32_Sword d_tag; /* Dynamic entry type */ + union + { + Elf32_Word d_val; /* Integer value */ + Elf32_Addr d_ptr; /* Address value */ + } d_un; +} Elf32_Dyn; + +typedef struct +{ + Elf64_Sxword d_tag; /* Dynamic entry type */ + union + { + Elf64_Xword d_val; /* Integer value */ + Elf64_Addr d_ptr; /* Address value */ + } d_un; +} Elf64_Dyn; + +/* Legal values for d_tag (dynamic entry type). */ + +#define DT_NULL 0 /* Marks end of dynamic section */ +#define DT_NEEDED 1 /* Name of needed library */ +#define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */ +#define DT_PLTGOT 3 /* Processor defined value */ +#define DT_HASH 4 /* Address of symbol hash table */ +#define DT_STRTAB 5 /* Address of string table */ +#define DT_SYMTAB 6 /* Address of symbol table */ +#define DT_RELA 7 /* Address of Rela relocs */ +#define DT_RELASZ 8 /* Total size of Rela relocs */ +#define DT_RELAENT 9 /* Size of one Rela reloc */ +#define DT_STRSZ 10 /* Size of string table */ +#define DT_SYMENT 11 /* Size of one symbol table entry */ +#define DT_INIT 12 /* Address of init function */ +#define DT_FINI 13 /* Address of termination function */ +#define DT_SONAME 14 /* Name of shared object */ +#define DT_RPATH 15 /* Library search path (deprecated) */ +#define DT_SYMBOLIC 16 /* Start symbol search here */ +#define DT_REL 17 /* Address of Rel relocs */ +#define DT_RELSZ 18 /* Total size of Rel relocs */ +#define DT_RELENT 19 /* Size of one Rel reloc */ +#define DT_PLTREL 20 /* Type of reloc in PLT */ +#define DT_DEBUG 21 /* For debugging; unspecified */ +#define DT_TEXTREL 22 /* Reloc might modify .text */ +#define DT_JMPREL 23 /* Address of PLT relocs */ +#define DT_BIND_NOW 24 /* Process relocations of object */ +#define DT_INIT_ARRAY 25 /* Array with addresses of init fct */ +#define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */ +#define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */ +#define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */ +#define DT_RUNPATH 29 /* Library search path */ +#define DT_FLAGS 30 /* Flags for the object being loaded */ +#define DT_ENCODING 32 /* Start of encoded range */ +#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/ +#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */ +#define DT_NUM 34 /* Number used */ +#define DT_LOOS 0x6000000d /* Start of OS-specific */ +#define DT_HIOS 0x6ffff000 /* End of OS-specific */ +#define DT_LOPROC 0x70000000 /* Start of processor-specific */ +#define DT_HIPROC 0x7fffffff /* End of processor-specific */ +#define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */ + +/* DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the + Dyn.d_un.d_val field of the Elf*_Dyn structure. This follows Sun's + approach. */ +#define DT_VALRNGLO 0x6ffffd00 +#define DT_GNU_PRELINKED 0x6ffffdf5 /* Prelinking timestamp */ +#define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* Size of conflict section */ +#define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* Size of library list */ +#define DT_CHECKSUM 0x6ffffdf8 +#define DT_PLTPADSZ 0x6ffffdf9 +#define DT_MOVEENT 0x6ffffdfa +#define DT_MOVESZ 0x6ffffdfb +#define DT_FEATURE_1 0x6ffffdfc /* Feature selection (DTF_*). */ +#define DT_POSFLAG_1 0x6ffffdfd /* Flags for DT_* entries, effecting + the following DT_* entry. */ +#define DT_SYMINSZ 0x6ffffdfe /* Size of syminfo table (in bytes) */ +#define DT_SYMINENT 0x6ffffdff /* Entry size of syminfo */ +#define DT_VALRNGHI 0x6ffffdff +#define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) /* Reverse order! */ +#define DT_VALNUM 12 + +/* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the + Dyn.d_un.d_ptr field of the Elf*_Dyn structure. + + If any adjustment is made to the ELF object after it has been + built these entries will need to be adjusted. */ +#define DT_ADDRRNGLO 0x6ffffe00 +#define DT_GNU_CONFLICT 0x6ffffef8 /* Start of conflict section */ +#define DT_GNU_LIBLIST 0x6ffffef9 /* Library list */ +#define DT_CONFIG 0x6ffffefa /* Configuration information. */ +#define DT_DEPAUDIT 0x6ffffefb /* Dependency auditing. */ +#define DT_AUDIT 0x6ffffefc /* Object auditing. */ +#define DT_PLTPAD 0x6ffffefd /* PLT padding. */ +#define DT_MOVETAB 0x6ffffefe /* Move table. */ +#define DT_SYMINFO 0x6ffffeff /* Syminfo table. */ +#define DT_ADDRRNGHI 0x6ffffeff +#define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) /* Reverse order! */ +#define DT_ADDRNUM 10 + +/* The versioning entry types. The next are defined as part of the + GNU extension. */ +#define DT_VERSYM 0x6ffffff0 + +#define DT_RELACOUNT 0x6ffffff9 +#define DT_RELCOUNT 0x6ffffffa + +/* These were chosen by Sun. */ +#define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */ +#define DT_VERDEF 0x6ffffffc /* Address of version definition + table */ +#define DT_VERDEFNUM 0x6ffffffd /* Number of version definitions */ +#define DT_VERNEED 0x6ffffffe /* Address of table with needed + versions */ +#define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */ +#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */ +#define DT_VERSIONTAGNUM 16 + +/* Sun added these machine-independent extensions in the "processor-specific" + range. Be compatible. */ +#define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */ +#define DT_FILTER 0x7fffffff /* Shared object to get values from */ +#define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1) +#define DT_EXTRANUM 3 + +/* Values of `d_un.d_val' in the DT_FLAGS entry. */ +#define DF_ORIGIN 0x00000001 /* Object may use DF_ORIGIN */ +#define DF_SYMBOLIC 0x00000002 /* Symbol resolutions starts here */ +#define DF_TEXTREL 0x00000004 /* Object contains text relocations */ +#define DF_BIND_NOW 0x00000008 /* No lazy binding for this object */ +#define DF_STATIC_TLS 0x00000010 /* Module uses the static TLS model */ + +/* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 + entry in the dynamic section. */ +#define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */ +#define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */ +#define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */ +#define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object.*/ +#define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime.*/ +#define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object*/ +#define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */ +#define DF_1_ORIGIN 0x00000080 /* $ORIGIN must be handled. */ +#define DF_1_DIRECT 0x00000100 /* Direct binding enabled. */ +#define DF_1_TRANS 0x00000200 +#define DF_1_INTERPOSE 0x00000400 /* Object is used to interpose. */ +#define DF_1_NODEFLIB 0x00000800 /* Ignore default lib search path. */ +#define DF_1_NODUMP 0x00001000 /* Object can't be dldump'ed. */ +#define DF_1_CONFALT 0x00002000 /* Configuration alternative created.*/ +#define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */ +#define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */ +#define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */ + +/* Flags for the feature selection in DT_FEATURE_1. */ +#define DTF_1_PARINIT 0x00000001 +#define DTF_1_CONFEXP 0x00000002 + +/* Flags in the DT_POSFLAG_1 entry effecting only the next DT_* entry. */ +#define DF_P1_LAZYLOAD 0x00000001 /* Lazyload following object. */ +#define DF_P1_GROUPPERM 0x00000002 /* Symbols from next object are not + generally available. */ + +/* Version definition sections. */ + +typedef struct +{ + Elf32_Half vd_version; /* Version revision */ + Elf32_Half vd_flags; /* Version information */ + Elf32_Half vd_ndx; /* Version Index */ + Elf32_Half vd_cnt; /* Number of associated aux entries */ + Elf32_Word vd_hash; /* Version name hash value */ + Elf32_Word vd_aux; /* Offset in bytes to verdaux array */ + Elf32_Word vd_next; /* Offset in bytes to next verdef + entry */ +} Elf32_Verdef; + +typedef struct +{ + Elf64_Half vd_version; /* Version revision */ + Elf64_Half vd_flags; /* Version information */ + Elf64_Half vd_ndx; /* Version Index */ + Elf64_Half vd_cnt; /* Number of associated aux entries */ + Elf64_Word vd_hash; /* Version name hash value */ + Elf64_Word vd_aux; /* Offset in bytes to verdaux array */ + Elf64_Word vd_next; /* Offset in bytes to next verdef + entry */ +} Elf64_Verdef; + + +/* Legal values for vd_version (version revision). */ +#define VER_DEF_NONE 0 /* No version */ +#define VER_DEF_CURRENT 1 /* Current version */ +#define VER_DEF_NUM 2 /* Given version number */ + +/* Legal values for vd_flags (version information flags). */ +#define VER_FLG_BASE 0x1 /* Version definition of file itself */ +#define VER_FLG_WEAK 0x2 /* Weak version identifier */ + +/* Versym symbol index values. */ +#define VER_NDX_LOCAL 0 /* Symbol is local. */ +#define VER_NDX_GLOBAL 1 /* Symbol is global. */ +#define VER_NDX_LORESERVE 0xff00 /* Beginning of reserved entries. */ +#define VER_NDX_ELIMINATE 0xff01 /* Symbol is to be eliminated. */ + +/* Auxialiary version information. */ + +typedef struct +{ + Elf32_Word vda_name; /* Version or dependency names */ + Elf32_Word vda_next; /* Offset in bytes to next verdaux + entry */ +} Elf32_Verdaux; + +typedef struct +{ + Elf64_Word vda_name; /* Version or dependency names */ + Elf64_Word vda_next; /* Offset in bytes to next verdaux + entry */ +} Elf64_Verdaux; + + +/* Version dependency section. */ + +typedef struct +{ + Elf32_Half vn_version; /* Version of structure */ + Elf32_Half vn_cnt; /* Number of associated aux entries */ + Elf32_Word vn_file; /* Offset of filename for this + dependency */ + Elf32_Word vn_aux; /* Offset in bytes to vernaux array */ + Elf32_Word vn_next; /* Offset in bytes to next verneed + entry */ +} Elf32_Verneed; + +typedef struct +{ + Elf64_Half vn_version; /* Version of structure */ + Elf64_Half vn_cnt; /* Number of associated aux entries */ + Elf64_Word vn_file; /* Offset of filename for this + dependency */ + Elf64_Word vn_aux; /* Offset in bytes to vernaux array */ + Elf64_Word vn_next; /* Offset in bytes to next verneed + entry */ +} Elf64_Verneed; + + +/* Legal values for vn_version (version revision). */ +#define VER_NEED_NONE 0 /* No version */ +#define VER_NEED_CURRENT 1 /* Current version */ +#define VER_NEED_NUM 2 /* Given version number */ + +/* Auxiliary needed version information. */ + +typedef struct +{ + Elf32_Word vna_hash; /* Hash value of dependency name */ + Elf32_Half vna_flags; /* Dependency specific information */ + Elf32_Half vna_other; /* Unused */ + Elf32_Word vna_name; /* Dependency name string offset */ + Elf32_Word vna_next; /* Offset in bytes to next vernaux + entry */ +} Elf32_Vernaux; + +typedef struct +{ + Elf64_Word vna_hash; /* Hash value of dependency name */ + Elf64_Half vna_flags; /* Dependency specific information */ + Elf64_Half vna_other; /* Unused */ + Elf64_Word vna_name; /* Dependency name string offset */ + Elf64_Word vna_next; /* Offset in bytes to next vernaux + entry */ +} Elf64_Vernaux; + + +/* Legal values for vna_flags. */ +#define VER_FLG_WEAK 0x2 /* Weak version identifier */ + + +/* Auxiliary vector. */ + +/* This vector is normally only used by the program interpreter. The + usual definition in an ABI supplement uses the name auxv_t. The + vector is not usually defined in a standard file, but it + can't hurt. We rename it to avoid conflicts. The sizes of these + types are an arrangement between the exec server and the program + interpreter, so we don't fully specify them here. */ + +typedef struct +{ + uint32_t a_type; /* Entry type */ + union + { + uint32_t a_val; /* Integer value */ + /* We use to have pointer elements added here. We cannot do that, + though, since it does not work when using 32-bit definitions + on 64-bit platforms and vice versa. */ + } a_un; +} Elf32_auxv_t; + +typedef struct +{ + uint64_t a_type; /* Entry type */ + union + { + uint64_t a_val; /* Integer value */ + /* We use to have pointer elements added here. We cannot do that, + though, since it does not work when using 32-bit definitions + on 64-bit platforms and vice versa. */ + } a_un; +} Elf64_auxv_t; + +/* Legal values for a_type (entry type). */ + +#define AT_NULL 0 /* End of vector */ +#define AT_IGNORE 1 /* Entry should be ignored */ +#define AT_EXECFD 2 /* File descriptor of program */ +#define AT_PHDR 3 /* Program headers for program */ +#define AT_PHENT 4 /* Size of program header entry */ +#define AT_PHNUM 5 /* Number of program headers */ +#define AT_PAGESZ 6 /* System page size */ +#define AT_BASE 7 /* Base address of interpreter */ +#define AT_FLAGS 8 /* Flags */ +#define AT_ENTRY 9 /* Entry point of program */ +#define AT_NOTELF 10 /* Program is not ELF */ +#define AT_UID 11 /* Real uid */ +#define AT_EUID 12 /* Effective uid */ +#define AT_GID 13 /* Real gid */ +#define AT_EGID 14 /* Effective gid */ +#define AT_CLKTCK 17 /* Frequency of times() */ + +/* Some more special a_type values describing the hardware. */ +#define AT_PLATFORM 15 /* String identifying platform. */ +#define AT_HWCAP 16 /* Machine dependent hints about + processor capabilities. */ + +/* This entry gives some information about the FPU initialization + performed by the kernel. */ +#define AT_FPUCW 18 /* Used FPU control word. */ + +/* Cache block sizes. */ +#define AT_DCACHEBSIZE 19 /* Data cache block size. */ +#define AT_ICACHEBSIZE 20 /* Instruction cache block size. */ +#define AT_UCACHEBSIZE 21 /* Unified cache block size. */ + +/* A special ignored value for PPC, used by the kernel to control the + interpretation of the AUXV. Must be > 16. */ +#define AT_IGNOREPPC 22 /* Entry should be ignored. */ + +#define AT_SECURE 23 /* Boolean, was exec setuid-like? */ + +/* Pointer to the global system page used for system calls and other + nice things. */ +#define AT_SYSINFO 32 +#define AT_SYSINFO_EHDR 33 + +/* Shapes of the caches. Bits 0-3 contains associativity; bits 4-7 contains + log2 of line size; mask those to get cache size. */ +#define AT_L1I_CACHESHAPE 34 +#define AT_L1D_CACHESHAPE 35 +#define AT_L2_CACHESHAPE 36 +#define AT_L3_CACHESHAPE 37 + +/* Note section contents. Each entry in the note section begins with + a header of a fixed form. */ + +typedef struct +{ + Elf32_Word n_namesz; /* Length of the note's name. */ + Elf32_Word n_descsz; /* Length of the note's descriptor. */ + Elf32_Word n_type; /* Type of the note. */ +} Elf32_Nhdr; + +typedef struct +{ + Elf64_Word n_namesz; /* Length of the note's name. */ + Elf64_Word n_descsz; /* Length of the note's descriptor. */ + Elf64_Word n_type; /* Type of the note. */ +} Elf64_Nhdr; + +/* Known names of notes. */ + +/* Solaris entries in the note section have this name. */ +#define ELF_NOTE_SOLARIS "SUNW Solaris" + +/* Note entries for GNU systems have this name. */ +#define ELF_NOTE_GNU "GNU" + + +/* Defined types of notes for Solaris. */ + +/* Value of descriptor (one word) is desired pagesize for the binary. */ +#define ELF_NOTE_PAGESIZE_HINT 1 + + +/* Defined note types for GNU systems. */ + +/* ABI information. The descriptor consists of words: + word 0: OS descriptor + word 1: major version of the ABI + word 2: minor version of the ABI + word 3: subminor version of the ABI +*/ +#define ELF_NOTE_ABI 1 + +/* Known OSes. These value can appear in word 0 of an ELF_NOTE_ABI + note section entry. */ +#define ELF_NOTE_OS_LINUX 0 +#define ELF_NOTE_OS_GNU 1 +#define ELF_NOTE_OS_SOLARIS2 2 +#define ELF_NOTE_OS_FREEBSD 3 + + +/* Move records. */ +typedef struct +{ + Elf32_Xword m_value; /* Symbol value. */ + Elf32_Word m_info; /* Size and index. */ + Elf32_Word m_poffset; /* Symbol offset. */ + Elf32_Half m_repeat; /* Repeat count. */ + Elf32_Half m_stride; /* Stride info. */ +} Elf32_Move; + +typedef struct +{ + Elf64_Xword m_value; /* Symbol value. */ + Elf64_Xword m_info; /* Size and index. */ + Elf64_Xword m_poffset; /* Symbol offset. */ + Elf64_Half m_repeat; /* Repeat count. */ + Elf64_Half m_stride; /* Stride info. */ +} Elf64_Move; + +/* Macro to construct move records. */ +#define ELF32_M_SYM(info) ((info) >> 8) +#define ELF32_M_SIZE(info) ((unsigned char) (info)) +#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char) (size)) + +#define ELF64_M_SYM(info) ELF32_M_SYM (info) +#define ELF64_M_SIZE(info) ELF32_M_SIZE (info) +#define ELF64_M_INFO(sym, size) ELF32_M_INFO (sym, size) + + +/* Motorola 68k specific definitions. */ + +/* Values for Elf32_Ehdr.e_flags. */ +#define EF_CPU32 0x00810000 + +/* m68k relocs. */ + +#define R_68K_NONE 0 /* No reloc */ +#define R_68K_32 1 /* Direct 32 bit */ +#define R_68K_16 2 /* Direct 16 bit */ +#define R_68K_8 3 /* Direct 8 bit */ +#define R_68K_PC32 4 /* PC relative 32 bit */ +#define R_68K_PC16 5 /* PC relative 16 bit */ +#define R_68K_PC8 6 /* PC relative 8 bit */ +#define R_68K_GOT32 7 /* 32 bit PC relative GOT entry */ +#define R_68K_GOT16 8 /* 16 bit PC relative GOT entry */ +#define R_68K_GOT8 9 /* 8 bit PC relative GOT entry */ +#define R_68K_GOT32O 10 /* 32 bit GOT offset */ +#define R_68K_GOT16O 11 /* 16 bit GOT offset */ +#define R_68K_GOT8O 12 /* 8 bit GOT offset */ +#define R_68K_PLT32 13 /* 32 bit PC relative PLT address */ +#define R_68K_PLT16 14 /* 16 bit PC relative PLT address */ +#define R_68K_PLT8 15 /* 8 bit PC relative PLT address */ +#define R_68K_PLT32O 16 /* 32 bit PLT offset */ +#define R_68K_PLT16O 17 /* 16 bit PLT offset */ +#define R_68K_PLT8O 18 /* 8 bit PLT offset */ +#define R_68K_COPY 19 /* Copy symbol at runtime */ +#define R_68K_GLOB_DAT 20 /* Create GOT entry */ +#define R_68K_JMP_SLOT 21 /* Create PLT entry */ +#define R_68K_RELATIVE 22 /* Adjust by program base */ +/* Keep this the last entry. */ +#define R_68K_NUM 23 + +/* Intel 80386 specific definitions. */ + +/* i386 relocs. */ + +#define R_386_NONE 0 /* No reloc */ +#define R_386_32 1 /* Direct 32 bit */ +#define R_386_PC32 2 /* PC relative 32 bit */ +#define R_386_GOT32 3 /* 32 bit GOT entry */ +#define R_386_PLT32 4 /* 32 bit PLT address */ +#define R_386_COPY 5 /* Copy symbol at runtime */ +#define R_386_GLOB_DAT 6 /* Create GOT entry */ +#define R_386_JMP_SLOT 7 /* Create PLT entry */ +#define R_386_RELATIVE 8 /* Adjust by program base */ +#define R_386_GOTOFF 9 /* 32 bit offset to GOT */ +#define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */ +#define R_386_32PLT 11 +#define R_386_TLS_TPOFF 14 /* Offset in static TLS block */ +#define R_386_TLS_IE 15 /* Address of GOT entry for static TLS + block offset */ +#define R_386_TLS_GOTIE 16 /* GOT entry for static TLS block + offset */ +#define R_386_TLS_LE 17 /* Offset relative to static TLS + block */ +#define R_386_TLS_GD 18 /* Direct 32 bit for GNU version of + general dynamic thread local data */ +#define R_386_TLS_LDM 19 /* Direct 32 bit for GNU version of + local dynamic thread local data + in LE code */ +#define R_386_16 20 +#define R_386_PC16 21 +#define R_386_8 22 +#define R_386_PC8 23 +#define R_386_TLS_GD_32 24 /* Direct 32 bit for general dynamic + thread local data */ +#define R_386_TLS_GD_PUSH 25 /* Tag for pushl in GD TLS code */ +#define R_386_TLS_GD_CALL 26 /* Relocation for call to + __tls_get_addr() */ +#define R_386_TLS_GD_POP 27 /* Tag for popl in GD TLS code */ +#define R_386_TLS_LDM_32 28 /* Direct 32 bit for local dynamic + thread local data in LE code */ +#define R_386_TLS_LDM_PUSH 29 /* Tag for pushl in LDM TLS code */ +#define R_386_TLS_LDM_CALL 30 /* Relocation for call to + __tls_get_addr() in LDM code */ +#define R_386_TLS_LDM_POP 31 /* Tag for popl in LDM TLS code */ +#define R_386_TLS_LDO_32 32 /* Offset relative to TLS block */ +#define R_386_TLS_IE_32 33 /* GOT entry for negated static TLS + block offset */ +#define R_386_TLS_LE_32 34 /* Negated offset relative to static + TLS block */ +#define R_386_TLS_DTPMOD32 35 /* ID of module containing symbol */ +#define R_386_TLS_DTPOFF32 36 /* Offset in TLS block */ +#define R_386_TLS_TPOFF32 37 /* Negated offset in static TLS block */ +/* Keep this the last entry. */ +#define R_386_NUM 38 + +/* SUN SPARC specific definitions. */ + +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ + +#define STT_SPARC_REGISTER 13 /* Global register reserved to app. */ + +/* Values for Elf64_Ehdr.e_flags. */ + +#define EF_SPARCV9_MM 3 +#define EF_SPARCV9_TSO 0 +#define EF_SPARCV9_PSO 1 +#define EF_SPARCV9_RMO 2 +#define EF_SPARC_LEDATA 0x800000 /* little endian data */ +#define EF_SPARC_EXT_MASK 0xFFFF00 +#define EF_SPARC_32PLUS 0x000100 /* generic V8+ features */ +#define EF_SPARC_SUN_US1 0x000200 /* Sun UltraSPARC1 extensions */ +#define EF_SPARC_HAL_R1 0x000400 /* HAL R1 extensions */ +#define EF_SPARC_SUN_US3 0x000800 /* Sun UltraSPARCIII extensions */ + +/* SPARC relocs. */ + +#define R_SPARC_NONE 0 /* No reloc */ +#define R_SPARC_8 1 /* Direct 8 bit */ +#define R_SPARC_16 2 /* Direct 16 bit */ +#define R_SPARC_32 3 /* Direct 32 bit */ +#define R_SPARC_DISP8 4 /* PC relative 8 bit */ +#define R_SPARC_DISP16 5 /* PC relative 16 bit */ +#define R_SPARC_DISP32 6 /* PC relative 32 bit */ +#define R_SPARC_WDISP30 7 /* PC relative 30 bit shifted */ +#define R_SPARC_WDISP22 8 /* PC relative 22 bit shifted */ +#define R_SPARC_HI22 9 /* High 22 bit */ +#define R_SPARC_22 10 /* Direct 22 bit */ +#define R_SPARC_13 11 /* Direct 13 bit */ +#define R_SPARC_LO10 12 /* Truncated 10 bit */ +#define R_SPARC_GOT10 13 /* Truncated 10 bit GOT entry */ +#define R_SPARC_GOT13 14 /* 13 bit GOT entry */ +#define R_SPARC_GOT22 15 /* 22 bit GOT entry shifted */ +#define R_SPARC_PC10 16 /* PC relative 10 bit truncated */ +#define R_SPARC_PC22 17 /* PC relative 22 bit shifted */ +#define R_SPARC_WPLT30 18 /* 30 bit PC relative PLT address */ +#define R_SPARC_COPY 19 /* Copy symbol at runtime */ +#define R_SPARC_GLOB_DAT 20 /* Create GOT entry */ +#define R_SPARC_JMP_SLOT 21 /* Create PLT entry */ +#define R_SPARC_RELATIVE 22 /* Adjust by program base */ +#define R_SPARC_UA32 23 /* Direct 32 bit unaligned */ + +/* Additional Sparc64 relocs. */ + +#define R_SPARC_PLT32 24 /* Direct 32 bit ref to PLT entry */ +#define R_SPARC_HIPLT22 25 /* High 22 bit PLT entry */ +#define R_SPARC_LOPLT10 26 /* Truncated 10 bit PLT entry */ +#define R_SPARC_PCPLT32 27 /* PC rel 32 bit ref to PLT entry */ +#define R_SPARC_PCPLT22 28 /* PC rel high 22 bit PLT entry */ +#define R_SPARC_PCPLT10 29 /* PC rel trunc 10 bit PLT entry */ +#define R_SPARC_10 30 /* Direct 10 bit */ +#define R_SPARC_11 31 /* Direct 11 bit */ +#define R_SPARC_64 32 /* Direct 64 bit */ +#define R_SPARC_OLO10 33 /* 10bit with secondary 13bit addend */ +#define R_SPARC_HH22 34 /* Top 22 bits of direct 64 bit */ +#define R_SPARC_HM10 35 /* High middle 10 bits of ... */ +#define R_SPARC_LM22 36 /* Low middle 22 bits of ... */ +#define R_SPARC_PC_HH22 37 /* Top 22 bits of pc rel 64 bit */ +#define R_SPARC_PC_HM10 38 /* High middle 10 bit of ... */ +#define R_SPARC_PC_LM22 39 /* Low miggle 22 bits of ... */ +#define R_SPARC_WDISP16 40 /* PC relative 16 bit shifted */ +#define R_SPARC_WDISP19 41 /* PC relative 19 bit shifted */ +#define R_SPARC_7 43 /* Direct 7 bit */ +#define R_SPARC_5 44 /* Direct 5 bit */ +#define R_SPARC_6 45 /* Direct 6 bit */ +#define R_SPARC_DISP64 46 /* PC relative 64 bit */ +#define R_SPARC_PLT64 47 /* Direct 64 bit ref to PLT entry */ +#define R_SPARC_HIX22 48 /* High 22 bit complemented */ +#define R_SPARC_LOX10 49 /* Truncated 11 bit complemented */ +#define R_SPARC_H44 50 /* Direct high 12 of 44 bit */ +#define R_SPARC_M44 51 /* Direct mid 22 of 44 bit */ +#define R_SPARC_L44 52 /* Direct low 10 of 44 bit */ +#define R_SPARC_REGISTER 53 /* Global register usage */ +#define R_SPARC_UA64 54 /* Direct 64 bit unaligned */ +#define R_SPARC_UA16 55 /* Direct 16 bit unaligned */ +#define R_SPARC_TLS_GD_HI22 56 +#define R_SPARC_TLS_GD_LO10 57 +#define R_SPARC_TLS_GD_ADD 58 +#define R_SPARC_TLS_GD_CALL 59 +#define R_SPARC_TLS_LDM_HI22 60 +#define R_SPARC_TLS_LDM_LO10 61 +#define R_SPARC_TLS_LDM_ADD 62 +#define R_SPARC_TLS_LDM_CALL 63 +#define R_SPARC_TLS_LDO_HIX22 64 +#define R_SPARC_TLS_LDO_LOX10 65 +#define R_SPARC_TLS_LDO_ADD 66 +#define R_SPARC_TLS_IE_HI22 67 +#define R_SPARC_TLS_IE_LO10 68 +#define R_SPARC_TLS_IE_LD 69 +#define R_SPARC_TLS_IE_LDX 70 +#define R_SPARC_TLS_IE_ADD 71 +#define R_SPARC_TLS_LE_HIX22 72 +#define R_SPARC_TLS_LE_LOX10 73 +#define R_SPARC_TLS_DTPMOD32 74 +#define R_SPARC_TLS_DTPMOD64 75 +#define R_SPARC_TLS_DTPOFF32 76 +#define R_SPARC_TLS_DTPOFF64 77 +#define R_SPARC_TLS_TPOFF32 78 +#define R_SPARC_TLS_TPOFF64 79 +/* Keep this the last entry. */ +#define R_SPARC_NUM 80 + +/* For Sparc64, legal values for d_tag of Elf64_Dyn. */ + +#define DT_SPARC_REGISTER 0x70000001 +#define DT_SPARC_NUM 2 + +/* Bits present in AT_HWCAP, primarily for Sparc32. */ + +#define HWCAP_SPARC_FLUSH 1 /* The cpu supports flush insn. */ +#define HWCAP_SPARC_STBAR 2 +#define HWCAP_SPARC_SWAP 4 +#define HWCAP_SPARC_MULDIV 8 +#define HWCAP_SPARC_V9 16 /* The cpu is v9, so v8plus is ok. */ +#define HWCAP_SPARC_ULTRA3 32 + +/* MIPS R3000 specific definitions. */ + +/* Legal values for e_flags field of Elf32_Ehdr. */ + +#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */ +#define EF_MIPS_PIC 2 /* Contains PIC code */ +#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */ +#define EF_MIPS_XGOT 8 +#define EF_MIPS_64BIT_WHIRL 16 +#define EF_MIPS_ABI2 32 +#define EF_MIPS_ABI_ON32 64 +#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */ + +/* Legal values for MIPS architecture level. */ + +#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ +#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ +#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ +#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ +#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ +#define EF_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ +#define EF_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ + +/* The following are non-official names and should not be used. */ + +#define E_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ +#define E_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ +#define E_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ +#define E_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ +#define E_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ +#define E_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ +#define E_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ + +/* Special section indices. */ + +#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */ +#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */ +#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */ +#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */ +#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */ + +/* Legal values for sh_type field of Elf32_Shdr. */ + +#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */ +#define SHT_MIPS_MSYM 0x70000001 +#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */ +#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */ +#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */ +#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information*/ +#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */ +#define SHT_MIPS_PACKAGE 0x70000007 +#define SHT_MIPS_PACKSYM 0x70000008 +#define SHT_MIPS_RELD 0x70000009 +#define SHT_MIPS_IFACE 0x7000000b +#define SHT_MIPS_CONTENT 0x7000000c +#define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */ +#define SHT_MIPS_SHDR 0x70000010 +#define SHT_MIPS_FDESC 0x70000011 +#define SHT_MIPS_EXTSYM 0x70000012 +#define SHT_MIPS_DENSE 0x70000013 +#define SHT_MIPS_PDESC 0x70000014 +#define SHT_MIPS_LOCSYM 0x70000015 +#define SHT_MIPS_AUXSYM 0x70000016 +#define SHT_MIPS_OPTSYM 0x70000017 +#define SHT_MIPS_LOCSTR 0x70000018 +#define SHT_MIPS_LINE 0x70000019 +#define SHT_MIPS_RFDESC 0x7000001a +#define SHT_MIPS_DELTASYM 0x7000001b +#define SHT_MIPS_DELTAINST 0x7000001c +#define SHT_MIPS_DELTACLASS 0x7000001d +#define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */ +#define SHT_MIPS_DELTADECL 0x7000001f +#define SHT_MIPS_SYMBOL_LIB 0x70000020 +#define SHT_MIPS_EVENTS 0x70000021 /* Event section. */ +#define SHT_MIPS_TRANSLATE 0x70000022 +#define SHT_MIPS_PIXIE 0x70000023 +#define SHT_MIPS_XLATE 0x70000024 +#define SHT_MIPS_XLATE_DEBUG 0x70000025 +#define SHT_MIPS_WHIRL 0x70000026 +#define SHT_MIPS_EH_REGION 0x70000027 +#define SHT_MIPS_XLATE_OLD 0x70000028 +#define SHT_MIPS_PDR_EXCEPTION 0x70000029 + +/* Legal values for sh_flags field of Elf32_Shdr. */ + +#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */ +#define SHF_MIPS_MERGE 0x20000000 +#define SHF_MIPS_ADDR 0x40000000 +#define SHF_MIPS_STRINGS 0x80000000 +#define SHF_MIPS_NOSTRIP 0x08000000 +#define SHF_MIPS_LOCAL 0x04000000 +#define SHF_MIPS_NAMES 0x02000000 +#define SHF_MIPS_NODUPE 0x01000000 + + +/* Symbol tables. */ + +/* MIPS specific values for `st_other'. */ +#define STO_MIPS_DEFAULT 0x0 +#define STO_MIPS_INTERNAL 0x1 +#define STO_MIPS_HIDDEN 0x2 +#define STO_MIPS_PROTECTED 0x3 +#define STO_MIPS_SC_ALIGN_UNUSED 0xff + +/* MIPS specific values for `st_info'. */ +#define STB_MIPS_SPLIT_COMMON 13 + +/* Entries found in sections of type SHT_MIPS_GPTAB. */ + +typedef union +{ + struct + { + Elf32_Word gt_current_g_value; /* -G value used for compilation */ + Elf32_Word gt_unused; /* Not used */ + } gt_header; /* First entry in section */ + struct + { + Elf32_Word gt_g_value; /* If this value were used for -G */ + Elf32_Word gt_bytes; /* This many bytes would be used */ + } gt_entry; /* Subsequent entries in section */ +} Elf32_gptab; + +/* Entry found in sections of type SHT_MIPS_REGINFO. */ + +typedef struct +{ + Elf32_Word ri_gprmask; /* General registers used */ + Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */ + Elf32_Sword ri_gp_value; /* $gp register value */ +} Elf32_RegInfo; + +/* Entries found in sections of type SHT_MIPS_OPTIONS. */ + +typedef struct +{ + unsigned char kind; /* Determines interpretation of the + variable part of descriptor. */ + unsigned char size; /* Size of descriptor, including header. */ + Elf32_Section section; /* Section header index of section affected, + 0 for global options. */ + Elf32_Word info; /* Kind-specific information. */ +} Elf_Options; + +/* Values for `kind' field in Elf_Options. */ + +#define ODK_NULL 0 /* Undefined. */ +#define ODK_REGINFO 1 /* Register usage information. */ +#define ODK_EXCEPTIONS 2 /* Exception processing options. */ +#define ODK_PAD 3 /* Section padding options. */ +#define ODK_HWPATCH 4 /* Hardware workarounds performed */ +#define ODK_FILL 5 /* record the fill value used by the linker. */ +#define ODK_TAGS 6 /* reserve space for desktop tools to write. */ +#define ODK_HWAND 7 /* HW workarounds. 'AND' bits when merging. */ +#define ODK_HWOR 8 /* HW workarounds. 'OR' bits when merging. */ + +/* Values for `info' in Elf_Options for ODK_EXCEPTIONS entries. */ + +#define OEX_FPU_MIN 0x1f /* FPE's which MUST be enabled. */ +#define OEX_FPU_MAX 0x1f00 /* FPE's which MAY be enabled. */ +#define OEX_PAGE0 0x10000 /* page zero must be mapped. */ +#define OEX_SMM 0x20000 /* Force sequential memory mode? */ +#define OEX_FPDBUG 0x40000 /* Force floating point debug mode? */ +#define OEX_PRECISEFP OEX_FPDBUG +#define OEX_DISMISS 0x80000 /* Dismiss invalid address faults? */ + +#define OEX_FPU_INVAL 0x10 +#define OEX_FPU_DIV0 0x08 +#define OEX_FPU_OFLO 0x04 +#define OEX_FPU_UFLO 0x02 +#define OEX_FPU_INEX 0x01 + +/* Masks for `info' in Elf_Options for an ODK_HWPATCH entry. */ + +#define OHW_R4KEOP 0x1 /* R4000 end-of-page patch. */ +#define OHW_R8KPFETCH 0x2 /* may need R8000 prefetch patch. */ +#define OHW_R5KEOP 0x4 /* R5000 end-of-page patch. */ +#define OHW_R5KCVTL 0x8 /* R5000 cvt.[ds].l bug. clean=1. */ + +#define OPAD_PREFIX 0x1 +#define OPAD_POSTFIX 0x2 +#define OPAD_SYMBOL 0x4 + +/* Entry found in `.options' section. */ + +typedef struct +{ + Elf32_Word hwp_flags1; /* Extra flags. */ + Elf32_Word hwp_flags2; /* Extra flags. */ +} Elf_Options_Hw; + +/* Masks for `info' in ElfOptions for ODK_HWAND and ODK_HWOR entries. */ + +#define OHWA0_R4KEOP_CHECKED 0x00000001 +#define OHWA1_R4KEOP_CLEAN 0x00000002 + +/* MIPS relocs. */ + +#define R_MIPS_NONE 0 /* No reloc */ +#define R_MIPS_16 1 /* Direct 16 bit */ +#define R_MIPS_32 2 /* Direct 32 bit */ +#define R_MIPS_REL32 3 /* PC relative 32 bit */ +#define R_MIPS_26 4 /* Direct 26 bit shifted */ +#define R_MIPS_HI16 5 /* High 16 bit */ +#define R_MIPS_LO16 6 /* Low 16 bit */ +#define R_MIPS_GPREL16 7 /* GP relative 16 bit */ +#define R_MIPS_LITERAL 8 /* 16 bit literal entry */ +#define R_MIPS_GOT16 9 /* 16 bit GOT entry */ +#define R_MIPS_PC16 10 /* PC relative 16 bit */ +#define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */ +#define R_MIPS_GPREL32 12 /* GP relative 32 bit */ + +#define R_MIPS_SHIFT5 16 +#define R_MIPS_SHIFT6 17 +#define R_MIPS_64 18 +#define R_MIPS_GOT_DISP 19 +#define R_MIPS_GOT_PAGE 20 +#define R_MIPS_GOT_OFST 21 +#define R_MIPS_GOT_HI16 22 +#define R_MIPS_GOT_LO16 23 +#define R_MIPS_SUB 24 +#define R_MIPS_INSERT_A 25 +#define R_MIPS_INSERT_B 26 +#define R_MIPS_DELETE 27 +#define R_MIPS_HIGHER 28 +#define R_MIPS_HIGHEST 29 +#define R_MIPS_CALL_HI16 30 +#define R_MIPS_CALL_LO16 31 +#define R_MIPS_SCN_DISP 32 +#define R_MIPS_REL16 33 +#define R_MIPS_ADD_IMMEDIATE 34 +#define R_MIPS_PJUMP 35 +#define R_MIPS_RELGOT 36 +#define R_MIPS_JALR 37 +#define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */ +#define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */ +#define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */ +#define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */ +#define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */ +#define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */ +#define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits */ +#define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits */ +#define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */ +#define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */ +#define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */ +#define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */ +#define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */ +/* Keep this the last entry. */ +#define R_MIPS_NUM 51 + +/* Legal values for p_type field of Elf32_Phdr. */ + +#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */ +#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */ +#define PT_MIPS_OPTIONS 0x70000002 + +/* Special program header types. */ + +#define PF_MIPS_LOCAL 0x10000000 + +/* Legal values for d_tag field of Elf32_Dyn. */ + +#define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime linker interface version */ +#define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */ +#define DT_MIPS_ICHECKSUM 0x70000003 /* Checksum */ +#define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */ +#define DT_MIPS_FLAGS 0x70000005 /* Flags */ +#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Base address */ +#define DT_MIPS_MSYM 0x70000007 +#define DT_MIPS_CONFLICT 0x70000008 /* Address of CONFLICT section */ +#define DT_MIPS_LIBLIST 0x70000009 /* Address of LIBLIST section */ +#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local GOT entries */ +#define DT_MIPS_CONFLICTNO 0x7000000b /* Number of CONFLICT entries */ +#define DT_MIPS_LIBLISTNO 0x70000010 /* Number of LIBLIST entries */ +#define DT_MIPS_SYMTABNO 0x70000011 /* Number of DYNSYM entries */ +#define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */ +#define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in DYNSYM */ +#define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */ +#define DT_MIPS_RLD_MAP 0x70000016 /* Address of run time loader map. */ +#define DT_MIPS_DELTA_CLASS 0x70000017 /* Delta C++ class definition. */ +#define DT_MIPS_DELTA_CLASS_NO 0x70000018 /* Number of entries in + DT_MIPS_DELTA_CLASS. */ +#define DT_MIPS_DELTA_INSTANCE 0x70000019 /* Delta C++ class instances. */ +#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a /* Number of entries in + DT_MIPS_DELTA_INSTANCE. */ +#define DT_MIPS_DELTA_RELOC 0x7000001b /* Delta relocations. */ +#define DT_MIPS_DELTA_RELOC_NO 0x7000001c /* Number of entries in + DT_MIPS_DELTA_RELOC. */ +#define DT_MIPS_DELTA_SYM 0x7000001d /* Delta symbols that Delta + relocations refer to. */ +#define DT_MIPS_DELTA_SYM_NO 0x7000001e /* Number of entries in + DT_MIPS_DELTA_SYM. */ +#define DT_MIPS_DELTA_CLASSSYM 0x70000020 /* Delta symbols that hold the + class declaration. */ +#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 /* Number of entries in + DT_MIPS_DELTA_CLASSSYM. */ +#define DT_MIPS_CXX_FLAGS 0x70000022 /* Flags indicating for C++ flavor. */ +#define DT_MIPS_PIXIE_INIT 0x70000023 +#define DT_MIPS_SYMBOL_LIB 0x70000024 +#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 +#define DT_MIPS_LOCAL_GOTIDX 0x70000026 +#define DT_MIPS_HIDDEN_GOTIDX 0x70000027 +#define DT_MIPS_PROTECTED_GOTIDX 0x70000028 +#define DT_MIPS_OPTIONS 0x70000029 /* Address of .options. */ +#define DT_MIPS_INTERFACE 0x7000002a /* Address of .interface. */ +#define DT_MIPS_DYNSTR_ALIGN 0x7000002b +#define DT_MIPS_INTERFACE_SIZE 0x7000002c /* Size of the .interface section. */ +#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d /* Address of rld_text_rsolve + function stored in GOT. */ +#define DT_MIPS_PERF_SUFFIX 0x7000002e /* Default suffix of dso to be added + by rld on dlopen() calls. */ +#define DT_MIPS_COMPACT_SIZE 0x7000002f /* (O32)Size of compact rel section. */ +#define DT_MIPS_GP_VALUE 0x70000030 /* GP value for aux GOTs. */ +#define DT_MIPS_AUX_DYNAMIC 0x70000031 /* Address of aux .dynamic. */ +#define DT_MIPS_NUM 0x32 + +/* Legal values for DT_MIPS_FLAGS Elf32_Dyn entry. */ + +#define RHF_NONE 0 /* No flags */ +#define RHF_QUICKSTART (1 << 0) /* Use quickstart */ +#define RHF_NOTPOT (1 << 1) /* Hash size not power of 2 */ +#define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) /* Ignore LD_LIBRARY_PATH */ +#define RHF_NO_MOVE (1 << 3) +#define RHF_SGI_ONLY (1 << 4) +#define RHF_GUARANTEE_INIT (1 << 5) +#define RHF_DELTA_C_PLUS_PLUS (1 << 6) +#define RHF_GUARANTEE_START_INIT (1 << 7) +#define RHF_PIXIE (1 << 8) +#define RHF_DEFAULT_DELAY_LOAD (1 << 9) +#define RHF_REQUICKSTART (1 << 10) +#define RHF_REQUICKSTARTED (1 << 11) +#define RHF_CORD (1 << 12) +#define RHF_NO_UNRES_UNDEF (1 << 13) +#define RHF_RLD_ORDER_SAFE (1 << 14) + +/* Entries found in sections of type SHT_MIPS_LIBLIST. */ + +typedef struct +{ + Elf32_Word l_name; /* Name (string table index) */ + Elf32_Word l_time_stamp; /* Timestamp */ + Elf32_Word l_checksum; /* Checksum */ + Elf32_Word l_version; /* Interface version */ + Elf32_Word l_flags; /* Flags */ +} Elf32_Lib; + +typedef struct +{ + Elf64_Word l_name; /* Name (string table index) */ + Elf64_Word l_time_stamp; /* Timestamp */ + Elf64_Word l_checksum; /* Checksum */ + Elf64_Word l_version; /* Interface version */ + Elf64_Word l_flags; /* Flags */ +} Elf64_Lib; + + +/* Legal values for l_flags. */ + +#define LL_NONE 0 +#define LL_EXACT_MATCH (1 << 0) /* Require exact match */ +#define LL_IGNORE_INT_VER (1 << 1) /* Ignore interface version */ +#define LL_REQUIRE_MINOR (1 << 2) +#define LL_EXPORTS (1 << 3) +#define LL_DELAY_LOAD (1 << 4) +#define LL_DELTA (1 << 5) + +/* Entries found in sections of type SHT_MIPS_CONFLICT. */ + +typedef Elf32_Addr Elf32_Conflict; + + +/* HPPA specific definitions. */ + +/* Legal values for e_flags field of Elf32_Ehdr. */ + +#define EF_PARISC_TRAPNIL 0x00010000 /* Trap nil pointer dereference. */ +#define EF_PARISC_EXT 0x00020000 /* Program uses arch. extensions. */ +#define EF_PARISC_LSB 0x00040000 /* Program expects little endian. */ +#define EF_PARISC_WIDE 0x00080000 /* Program expects wide mode. */ +#define EF_PARISC_NO_KABP 0x00100000 /* No kernel assisted branch + prediction. */ +#define EF_PARISC_LAZYSWAP 0x00400000 /* Allow lazy swapping. */ +#define EF_PARISC_ARCH 0x0000ffff /* Architecture version. */ + +/* Defined values for `e_flags & EF_PARISC_ARCH' are: */ + +#define EFA_PARISC_1_0 0x020b /* PA-RISC 1.0 big-endian. */ +#define EFA_PARISC_1_1 0x0210 /* PA-RISC 1.1 big-endian. */ +#define EFA_PARISC_2_0 0x0214 /* PA-RISC 2.0 big-endian. */ + +/* Additional section indeces. */ + +#define SHN_PARISC_ANSI_COMMON 0xff00 /* Section for tenatively declared + symbols in ANSI C. */ +#define SHN_PARISC_HUGE_COMMON 0xff01 /* Common blocks in huge model. */ + +/* Legal values for sh_type field of Elf32_Shdr. */ + +#define SHT_PARISC_EXT 0x70000000 /* Contains product specific ext. */ +#define SHT_PARISC_UNWIND 0x70000001 /* Unwind information. */ +#define SHT_PARISC_DOC 0x70000002 /* Debug info for optimized code. */ + +/* Legal values for sh_flags field of Elf32_Shdr. */ + +#define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */ +#define SHF_PARISC_HUGE 0x40000000 /* Section far from gp. */ +#define SHF_PARISC_SBP 0x80000000 /* Static branch prediction code. */ + +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ + +#define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */ + +#define STT_HP_OPAQUE (STT_LOOS + 0x1) +#define STT_HP_STUB (STT_LOOS + 0x2) + +/* HPPA relocs. */ + +#define R_PARISC_NONE 0 /* No reloc. */ +#define R_PARISC_DIR32 1 /* Direct 32-bit reference. */ +#define R_PARISC_DIR21L 2 /* Left 21 bits of eff. address. */ +#define R_PARISC_DIR17R 3 /* Right 17 bits of eff. address. */ +#define R_PARISC_DIR17F 4 /* 17 bits of eff. address. */ +#define R_PARISC_DIR14R 6 /* Right 14 bits of eff. address. */ +#define R_PARISC_PCREL32 9 /* 32-bit rel. address. */ +#define R_PARISC_PCREL21L 10 /* Left 21 bits of rel. address. */ +#define R_PARISC_PCREL17R 11 /* Right 17 bits of rel. address. */ +#define R_PARISC_PCREL17F 12 /* 17 bits of rel. address. */ +#define R_PARISC_PCREL14R 14 /* Right 14 bits of rel. address. */ +#define R_PARISC_DPREL21L 18 /* Left 21 bits of rel. address. */ +#define R_PARISC_DPREL14R 22 /* Right 14 bits of rel. address. */ +#define R_PARISC_GPREL21L 26 /* GP-relative, left 21 bits. */ +#define R_PARISC_GPREL14R 30 /* GP-relative, right 14 bits. */ +#define R_PARISC_LTOFF21L 34 /* LT-relative, left 21 bits. */ +#define R_PARISC_LTOFF14R 38 /* LT-relative, right 14 bits. */ +#define R_PARISC_SECREL32 41 /* 32 bits section rel. address. */ +#define R_PARISC_SEGBASE 48 /* No relocation, set segment base. */ +#define R_PARISC_SEGREL32 49 /* 32 bits segment rel. address. */ +#define R_PARISC_PLTOFF21L 50 /* PLT rel. address, left 21 bits. */ +#define R_PARISC_PLTOFF14R 54 /* PLT rel. address, right 14 bits. */ +#define R_PARISC_LTOFF_FPTR32 57 /* 32 bits LT-rel. function pointer. */ +#define R_PARISC_LTOFF_FPTR21L 58 /* LT-rel. fct ptr, left 21 bits. */ +#define R_PARISC_LTOFF_FPTR14R 62 /* LT-rel. fct ptr, right 14 bits. */ +#define R_PARISC_FPTR64 64 /* 64 bits function address. */ +#define R_PARISC_PLABEL32 65 /* 32 bits function address. */ +#define R_PARISC_PCREL64 72 /* 64 bits PC-rel. address. */ +#define R_PARISC_PCREL22F 74 /* 22 bits PC-rel. address. */ +#define R_PARISC_PCREL14WR 75 /* PC-rel. address, right 14 bits. */ +#define R_PARISC_PCREL14DR 76 /* PC rel. address, right 14 bits. */ +#define R_PARISC_PCREL16F 77 /* 16 bits PC-rel. address. */ +#define R_PARISC_PCREL16WF 78 /* 16 bits PC-rel. address. */ +#define R_PARISC_PCREL16DF 79 /* 16 bits PC-rel. address. */ +#define R_PARISC_DIR64 80 /* 64 bits of eff. address. */ +#define R_PARISC_DIR14WR 83 /* 14 bits of eff. address. */ +#define R_PARISC_DIR14DR 84 /* 14 bits of eff. address. */ +#define R_PARISC_DIR16F 85 /* 16 bits of eff. address. */ +#define R_PARISC_DIR16WF 86 /* 16 bits of eff. address. */ +#define R_PARISC_DIR16DF 87 /* 16 bits of eff. address. */ +#define R_PARISC_GPREL64 88 /* 64 bits of GP-rel. address. */ +#define R_PARISC_GPREL14WR 91 /* GP-rel. address, right 14 bits. */ +#define R_PARISC_GPREL14DR 92 /* GP-rel. address, right 14 bits. */ +#define R_PARISC_GPREL16F 93 /* 16 bits GP-rel. address. */ +#define R_PARISC_GPREL16WF 94 /* 16 bits GP-rel. address. */ +#define R_PARISC_GPREL16DF 95 /* 16 bits GP-rel. address. */ +#define R_PARISC_LTOFF64 96 /* 64 bits LT-rel. address. */ +#define R_PARISC_LTOFF14WR 99 /* LT-rel. address, right 14 bits. */ +#define R_PARISC_LTOFF14DR 100 /* LT-rel. address, right 14 bits. */ +#define R_PARISC_LTOFF16F 101 /* 16 bits LT-rel. address. */ +#define R_PARISC_LTOFF16WF 102 /* 16 bits LT-rel. address. */ +#define R_PARISC_LTOFF16DF 103 /* 16 bits LT-rel. address. */ +#define R_PARISC_SECREL64 104 /* 64 bits section rel. address. */ +#define R_PARISC_SEGREL64 112 /* 64 bits segment rel. address. */ +#define R_PARISC_PLTOFF14WR 115 /* PLT-rel. address, right 14 bits. */ +#define R_PARISC_PLTOFF14DR 116 /* PLT-rel. address, right 14 bits. */ +#define R_PARISC_PLTOFF16F 117 /* 16 bits LT-rel. address. */ +#define R_PARISC_PLTOFF16WF 118 /* 16 bits PLT-rel. address. */ +#define R_PARISC_PLTOFF16DF 119 /* 16 bits PLT-rel. address. */ +#define R_PARISC_LTOFF_FPTR64 120 /* 64 bits LT-rel. function ptr. */ +#define R_PARISC_LTOFF_FPTR14WR 123 /* LT-rel. fct. ptr., right 14 bits. */ +#define R_PARISC_LTOFF_FPTR14DR 124 /* LT-rel. fct. ptr., right 14 bits. */ +#define R_PARISC_LTOFF_FPTR16F 125 /* 16 bits LT-rel. function ptr. */ +#define R_PARISC_LTOFF_FPTR16WF 126 /* 16 bits LT-rel. function ptr. */ +#define R_PARISC_LTOFF_FPTR16DF 127 /* 16 bits LT-rel. function ptr. */ +#define R_PARISC_LORESERVE 128 +#define R_PARISC_COPY 128 /* Copy relocation. */ +#define R_PARISC_IPLT 129 /* Dynamic reloc, imported PLT */ +#define R_PARISC_EPLT 130 /* Dynamic reloc, exported PLT */ +#define R_PARISC_TPREL32 153 /* 32 bits TP-rel. address. */ +#define R_PARISC_TPREL21L 154 /* TP-rel. address, left 21 bits. */ +#define R_PARISC_TPREL14R 158 /* TP-rel. address, right 14 bits. */ +#define R_PARISC_LTOFF_TP21L 162 /* LT-TP-rel. address, left 21 bits. */ +#define R_PARISC_LTOFF_TP14R 166 /* LT-TP-rel. address, right 14 bits.*/ +#define R_PARISC_LTOFF_TP14F 167 /* 14 bits LT-TP-rel. address. */ +#define R_PARISC_TPREL64 216 /* 64 bits TP-rel. address. */ +#define R_PARISC_TPREL14WR 219 /* TP-rel. address, right 14 bits. */ +#define R_PARISC_TPREL14DR 220 /* TP-rel. address, right 14 bits. */ +#define R_PARISC_TPREL16F 221 /* 16 bits TP-rel. address. */ +#define R_PARISC_TPREL16WF 222 /* 16 bits TP-rel. address. */ +#define R_PARISC_TPREL16DF 223 /* 16 bits TP-rel. address. */ +#define R_PARISC_LTOFF_TP64 224 /* 64 bits LT-TP-rel. address. */ +#define R_PARISC_LTOFF_TP14WR 227 /* LT-TP-rel. address, right 14 bits.*/ +#define R_PARISC_LTOFF_TP14DR 228 /* LT-TP-rel. address, right 14 bits.*/ +#define R_PARISC_LTOFF_TP16F 229 /* 16 bits LT-TP-rel. address. */ +#define R_PARISC_LTOFF_TP16WF 230 /* 16 bits LT-TP-rel. address. */ +#define R_PARISC_LTOFF_TP16DF 231 /* 16 bits LT-TP-rel. address. */ +#define R_PARISC_HIRESERVE 255 + +/* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr. */ + +#define PT_HP_TLS (PT_LOOS + 0x0) +#define PT_HP_CORE_NONE (PT_LOOS + 0x1) +#define PT_HP_CORE_VERSION (PT_LOOS + 0x2) +#define PT_HP_CORE_KERNEL (PT_LOOS + 0x3) +#define PT_HP_CORE_COMM (PT_LOOS + 0x4) +#define PT_HP_CORE_PROC (PT_LOOS + 0x5) +#define PT_HP_CORE_LOADABLE (PT_LOOS + 0x6) +#define PT_HP_CORE_STACK (PT_LOOS + 0x7) +#define PT_HP_CORE_SHM (PT_LOOS + 0x8) +#define PT_HP_CORE_MMF (PT_LOOS + 0x9) +#define PT_HP_PARALLEL (PT_LOOS + 0x10) +#define PT_HP_FASTBIND (PT_LOOS + 0x11) +#define PT_HP_OPT_ANNOT (PT_LOOS + 0x12) +#define PT_HP_HSL_ANNOT (PT_LOOS + 0x13) +#define PT_HP_STACK (PT_LOOS + 0x14) + +#define PT_PARISC_ARCHEXT 0x70000000 +#define PT_PARISC_UNWIND 0x70000001 + +/* Legal values for p_flags field of Elf32_Phdr/Elf64_Phdr. */ + +#define PF_PARISC_SBP 0x08000000 + +#define PF_HP_PAGE_SIZE 0x00100000 +#define PF_HP_FAR_SHARED 0x00200000 +#define PF_HP_NEAR_SHARED 0x00400000 +#define PF_HP_CODE 0x01000000 +#define PF_HP_MODIFY 0x02000000 +#define PF_HP_LAZYSWAP 0x04000000 +#define PF_HP_SBP 0x08000000 + + +/* Alpha specific definitions. */ + +/* Legal values for e_flags field of Elf64_Ehdr. */ + +#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */ +#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */ + +/* Legal values for sh_type field of Elf64_Shdr. */ + +/* These two are primerily concerned with ECOFF debugging info. */ +#define SHT_ALPHA_DEBUG 0x70000001 +#define SHT_ALPHA_REGINFO 0x70000002 + +/* Legal values for sh_flags field of Elf64_Shdr. */ + +#define SHF_ALPHA_GPREL 0x10000000 + +/* Legal values for st_other field of Elf64_Sym. */ +#define STO_ALPHA_NOPV 0x80 /* No PV required. */ +#define STO_ALPHA_STD_GPLOAD 0x88 /* PV only used for initial ldgp. */ + +/* Alpha relocs. */ + +#define R_ALPHA_NONE 0 /* No reloc */ +#define R_ALPHA_REFLONG 1 /* Direct 32 bit */ +#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ +#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ +#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ +#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ +#define R_ALPHA_GPDISP 6 /* Add displacement to GP */ +#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ +#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ +#define R_ALPHA_SREL16 9 /* PC relative 16 bit */ +#define R_ALPHA_SREL32 10 /* PC relative 32 bit */ +#define R_ALPHA_SREL64 11 /* PC relative 64 bit */ +#define R_ALPHA_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */ +#define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */ +#define R_ALPHA_GPREL16 19 /* GP relative 16 bit */ +#define R_ALPHA_COPY 24 /* Copy symbol at runtime */ +#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ +#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ +#define R_ALPHA_RELATIVE 27 /* Adjust by program base */ +#define R_ALPHA_TLS_GD_HI 28 +#define R_ALPHA_TLSGD 29 +#define R_ALPHA_TLS_LDM 30 +#define R_ALPHA_DTPMOD64 31 +#define R_ALPHA_GOTDTPREL 32 +#define R_ALPHA_DTPREL64 33 +#define R_ALPHA_DTPRELHI 34 +#define R_ALPHA_DTPRELLO 35 +#define R_ALPHA_DTPREL16 36 +#define R_ALPHA_GOTTPREL 37 +#define R_ALPHA_TPREL64 38 +#define R_ALPHA_TPRELHI 39 +#define R_ALPHA_TPRELLO 40 +#define R_ALPHA_TPREL16 41 +/* Keep this the last entry. */ +#define R_ALPHA_NUM 46 + +/* Magic values of the LITUSE relocation addend. */ +#define LITUSE_ALPHA_ADDR 0 +#define LITUSE_ALPHA_BASE 1 +#define LITUSE_ALPHA_BYTOFF 2 +#define LITUSE_ALPHA_JSR 3 +#define LITUSE_ALPHA_TLS_GD 4 +#define LITUSE_ALPHA_TLS_LDM 5 + + +/* PowerPC specific declarations */ + +/* Values for Elf32/64_Ehdr.e_flags. */ +#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */ + +/* Cygnus local bits below */ +#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/ +#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib + flag */ + +/* PowerPC relocations defined by the ABIs */ +#define R_PPC_NONE 0 +#define R_PPC_ADDR32 1 /* 32bit absolute address */ +#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */ +#define R_PPC_ADDR16 3 /* 16bit absolute address */ +#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */ +#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */ +#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */ +#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */ +#define R_PPC_ADDR14_BRTAKEN 8 +#define R_PPC_ADDR14_BRNTAKEN 9 +#define R_PPC_REL24 10 /* PC relative 26 bit */ +#define R_PPC_REL14 11 /* PC relative 16 bit */ +#define R_PPC_REL14_BRTAKEN 12 +#define R_PPC_REL14_BRNTAKEN 13 +#define R_PPC_GOT16 14 +#define R_PPC_GOT16_LO 15 +#define R_PPC_GOT16_HI 16 +#define R_PPC_GOT16_HA 17 +#define R_PPC_PLTREL24 18 +#define R_PPC_COPY 19 +#define R_PPC_GLOB_DAT 20 +#define R_PPC_JMP_SLOT 21 +#define R_PPC_RELATIVE 22 +#define R_PPC_LOCAL24PC 23 +#define R_PPC_UADDR32 24 +#define R_PPC_UADDR16 25 +#define R_PPC_REL32 26 +#define R_PPC_PLT32 27 +#define R_PPC_PLTREL32 28 +#define R_PPC_PLT16_LO 29 +#define R_PPC_PLT16_HI 30 +#define R_PPC_PLT16_HA 31 +#define R_PPC_SDAREL16 32 +#define R_PPC_SECTOFF 33 +#define R_PPC_SECTOFF_LO 34 +#define R_PPC_SECTOFF_HI 35 +#define R_PPC_SECTOFF_HA 36 + +/* PowerPC relocations defined for the TLS access ABI. */ +#define R_PPC_TLS 67 /* none (sym+add)@tls */ +#define R_PPC_DTPMOD32 68 /* word32 (sym+add)@dtpmod */ +#define R_PPC_TPREL16 69 /* half16* (sym+add)@tprel */ +#define R_PPC_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ +#define R_PPC_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ +#define R_PPC_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ +#define R_PPC_TPREL32 73 /* word32 (sym+add)@tprel */ +#define R_PPC_DTPREL16 74 /* half16* (sym+add)@dtprel */ +#define R_PPC_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ +#define R_PPC_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ +#define R_PPC_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ +#define R_PPC_DTPREL32 78 /* word32 (sym+add)@dtprel */ +#define R_PPC_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ +#define R_PPC_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ +#define R_PPC_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ +#define R_PPC_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ +#define R_PPC_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ +#define R_PPC_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ +#define R_PPC_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ +#define R_PPC_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ +#define R_PPC_GOT_TPREL16 87 /* half16* (sym+add)@got@tprel */ +#define R_PPC_GOT_TPREL16_LO 88 /* half16 (sym+add)@got@tprel@l */ +#define R_PPC_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ +#define R_PPC_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ +#define R_PPC_GOT_DTPREL16 91 /* half16* (sym+add)@got@dtprel */ +#define R_PPC_GOT_DTPREL16_LO 92 /* half16* (sym+add)@got@dtprel@l */ +#define R_PPC_GOT_DTPREL16_HI 93 /* half16* (sym+add)@got@dtprel@h */ +#define R_PPC_GOT_DTPREL16_HA 94 /* half16* (sym+add)@got@dtprel@ha */ + +/* Keep this the last entry. */ +#define R_PPC_NUM 95 + +/* The remaining relocs are from the Embedded ELF ABI, and are not + in the SVR4 ELF ABI. */ +#define R_PPC_EMB_NADDR32 101 +#define R_PPC_EMB_NADDR16 102 +#define R_PPC_EMB_NADDR16_LO 103 +#define R_PPC_EMB_NADDR16_HI 104 +#define R_PPC_EMB_NADDR16_HA 105 +#define R_PPC_EMB_SDAI16 106 +#define R_PPC_EMB_SDA2I16 107 +#define R_PPC_EMB_SDA2REL 108 +#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */ +#define R_PPC_EMB_MRKREF 110 +#define R_PPC_EMB_RELSEC16 111 +#define R_PPC_EMB_RELST_LO 112 +#define R_PPC_EMB_RELST_HI 113 +#define R_PPC_EMB_RELST_HA 114 +#define R_PPC_EMB_BIT_FLD 115 +#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */ + +/* Diab tool relocations. */ +#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */ +#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */ +#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */ +#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */ +#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */ +#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */ + +/* This is a phony reloc to handle any old fashioned TOC16 references + that may still be in object files. */ +#define R_PPC_TOC16 255 + + +/* PowerPC64 relocations defined by the ABIs */ +#define R_PPC64_NONE R_PPC_NONE +#define R_PPC64_ADDR32 R_PPC_ADDR32 /* 32bit absolute address */ +#define R_PPC64_ADDR24 R_PPC_ADDR24 /* 26bit address, word aligned */ +#define R_PPC64_ADDR16 R_PPC_ADDR16 /* 16bit absolute address */ +#define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO /* lower 16bits of address */ +#define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI /* high 16bits of address. */ +#define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA /* adjusted high 16bits. */ +#define R_PPC64_ADDR14 R_PPC_ADDR14 /* 16bit address, word aligned */ +#define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN +#define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN +#define R_PPC64_REL24 R_PPC_REL24 /* PC-rel. 26 bit, word aligned */ +#define R_PPC64_REL14 R_PPC_REL14 /* PC relative 16 bit */ +#define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN +#define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN +#define R_PPC64_GOT16 R_PPC_GOT16 +#define R_PPC64_GOT16_LO R_PPC_GOT16_LO +#define R_PPC64_GOT16_HI R_PPC_GOT16_HI +#define R_PPC64_GOT16_HA R_PPC_GOT16_HA + +#define R_PPC64_COPY R_PPC_COPY +#define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT +#define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT +#define R_PPC64_RELATIVE R_PPC_RELATIVE + +#define R_PPC64_UADDR32 R_PPC_UADDR32 +#define R_PPC64_UADDR16 R_PPC_UADDR16 +#define R_PPC64_REL32 R_PPC_REL32 +#define R_PPC64_PLT32 R_PPC_PLT32 +#define R_PPC64_PLTREL32 R_PPC_PLTREL32 +#define R_PPC64_PLT16_LO R_PPC_PLT16_LO +#define R_PPC64_PLT16_HI R_PPC_PLT16_HI +#define R_PPC64_PLT16_HA R_PPC_PLT16_HA + +#define R_PPC64_SECTOFF R_PPC_SECTOFF +#define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO +#define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI +#define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA +#define R_PPC64_ADDR30 37 /* word30 (S + A - P) >> 2 */ +#define R_PPC64_ADDR64 38 /* doubleword64 S + A */ +#define R_PPC64_ADDR16_HIGHER 39 /* half16 #higher(S + A) */ +#define R_PPC64_ADDR16_HIGHERA 40 /* half16 #highera(S + A) */ +#define R_PPC64_ADDR16_HIGHEST 41 /* half16 #highest(S + A) */ +#define R_PPC64_ADDR16_HIGHESTA 42 /* half16 #highesta(S + A) */ +#define R_PPC64_UADDR64 43 /* doubleword64 S + A */ +#define R_PPC64_REL64 44 /* doubleword64 S + A - P */ +#define R_PPC64_PLT64 45 /* doubleword64 L + A */ +#define R_PPC64_PLTREL64 46 /* doubleword64 L + A - P */ +#define R_PPC64_TOC16 47 /* half16* S + A - .TOC */ +#define R_PPC64_TOC16_LO 48 /* half16 #lo(S + A - .TOC.) */ +#define R_PPC64_TOC16_HI 49 /* half16 #hi(S + A - .TOC.) */ +#define R_PPC64_TOC16_HA 50 /* half16 #ha(S + A - .TOC.) */ +#define R_PPC64_TOC 51 /* doubleword64 .TOC */ +#define R_PPC64_PLTGOT16 52 /* half16* M + A */ +#define R_PPC64_PLTGOT16_LO 53 /* half16 #lo(M + A) */ +#define R_PPC64_PLTGOT16_HI 54 /* half16 #hi(M + A) */ +#define R_PPC64_PLTGOT16_HA 55 /* half16 #ha(M + A) */ + +#define R_PPC64_ADDR16_DS 56 /* half16ds* (S + A) >> 2 */ +#define R_PPC64_ADDR16_LO_DS 57 /* half16ds #lo(S + A) >> 2 */ +#define R_PPC64_GOT16_DS 58 /* half16ds* (G + A) >> 2 */ +#define R_PPC64_GOT16_LO_DS 59 /* half16ds #lo(G + A) >> 2 */ +#define R_PPC64_PLT16_LO_DS 60 /* half16ds #lo(L + A) >> 2 */ +#define R_PPC64_SECTOFF_DS 61 /* half16ds* (R + A) >> 2 */ +#define R_PPC64_SECTOFF_LO_DS 62 /* half16ds #lo(R + A) >> 2 */ +#define R_PPC64_TOC16_DS 63 /* half16ds* (S + A - .TOC.) >> 2 */ +#define R_PPC64_TOC16_LO_DS 64 /* half16ds #lo(S + A - .TOC.) >> 2 */ +#define R_PPC64_PLTGOT16_DS 65 /* half16ds* (M + A) >> 2 */ +#define R_PPC64_PLTGOT16_LO_DS 66 /* half16ds #lo(M + A) >> 2 */ + +/* PowerPC64 relocations defined for the TLS access ABI. */ +#define R_PPC64_TLS 67 /* none (sym+add)@tls */ +#define R_PPC64_DTPMOD64 68 /* doubleword64 (sym+add)@dtpmod */ +#define R_PPC64_TPREL16 69 /* half16* (sym+add)@tprel */ +#define R_PPC64_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ +#define R_PPC64_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ +#define R_PPC64_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ +#define R_PPC64_TPREL64 73 /* doubleword64 (sym+add)@tprel */ +#define R_PPC64_DTPREL16 74 /* half16* (sym+add)@dtprel */ +#define R_PPC64_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ +#define R_PPC64_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ +#define R_PPC64_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ +#define R_PPC64_DTPREL64 78 /* doubleword64 (sym+add)@dtprel */ +#define R_PPC64_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ +#define R_PPC64_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ +#define R_PPC64_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ +#define R_PPC64_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ +#define R_PPC64_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ +#define R_PPC64_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ +#define R_PPC64_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ +#define R_PPC64_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ +#define R_PPC64_GOT_TPREL16_DS 87 /* half16ds* (sym+add)@got@tprel */ +#define R_PPC64_GOT_TPREL16_LO_DS 88 /* half16ds (sym+add)@got@tprel@l */ +#define R_PPC64_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ +#define R_PPC64_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ +#define R_PPC64_GOT_DTPREL16_DS 91 /* half16ds* (sym+add)@got@dtprel */ +#define R_PPC64_GOT_DTPREL16_LO_DS 92 /* half16ds (sym+add)@got@dtprel@l */ +#define R_PPC64_GOT_DTPREL16_HI 93 /* half16 (sym+add)@got@dtprel@h */ +#define R_PPC64_GOT_DTPREL16_HA 94 /* half16 (sym+add)@got@dtprel@ha */ +#define R_PPC64_TPREL16_DS 95 /* half16ds* (sym+add)@tprel */ +#define R_PPC64_TPREL16_LO_DS 96 /* half16ds (sym+add)@tprel@l */ +#define R_PPC64_TPREL16_HIGHER 97 /* half16 (sym+add)@tprel@higher */ +#define R_PPC64_TPREL16_HIGHERA 98 /* half16 (sym+add)@tprel@highera */ +#define R_PPC64_TPREL16_HIGHEST 99 /* half16 (sym+add)@tprel@highest */ +#define R_PPC64_TPREL16_HIGHESTA 100 /* half16 (sym+add)@tprel@highesta */ +#define R_PPC64_DTPREL16_DS 101 /* half16ds* (sym+add)@dtprel */ +#define R_PPC64_DTPREL16_LO_DS 102 /* half16ds (sym+add)@dtprel@l */ +#define R_PPC64_DTPREL16_HIGHER 103 /* half16 (sym+add)@dtprel@higher */ +#define R_PPC64_DTPREL16_HIGHERA 104 /* half16 (sym+add)@dtprel@highera */ +#define R_PPC64_DTPREL16_HIGHEST 105 /* half16 (sym+add)@dtprel@highest */ +#define R_PPC64_DTPREL16_HIGHESTA 106 /* half16 (sym+add)@dtprel@highesta */ + +/* Keep this the last entry. */ +#define R_PPC64_NUM 107 + +/* PowerPC64 specific values for the Dyn d_tag field. */ +#define DT_PPC64_GLINK (DT_LOPROC + 0) +#define DT_PPC64_OPD (DT_LOPROC + 1) +#define DT_PPC64_OPDSZ (DT_LOPROC + 2) +#define DT_PPC64_NUM 3 + + +/* ARM specific declarations */ + +/* Processor specific flags for the ELF header e_flags field. */ +#define EF_ARM_RELEXEC 0x01 +#define EF_ARM_HASENTRY 0x02 +#define EF_ARM_INTERWORK 0x04 +#define EF_ARM_APCS_26 0x08 +#define EF_ARM_APCS_FLOAT 0x10 +#define EF_ARM_PIC 0x20 +#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use */ +#define EF_ARM_NEW_ABI 0x80 +#define EF_ARM_OLD_ABI 0x100 + +/* Other constants defined in the ARM ELF spec. version B-01. */ +/* NB. These conflict with values defined above. */ +#define EF_ARM_SYMSARESORTED 0x04 +#define EF_ARM_DYNSYMSUSESEGIDX 0x08 +#define EF_ARM_MAPSYMSFIRST 0x10 +#define EF_ARM_EABIMASK 0XFF000000 + +#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK) +#define EF_ARM_EABI_UNKNOWN 0x00000000 +#define EF_ARM_EABI_VER1 0x01000000 +#define EF_ARM_EABI_VER2 0x02000000 + +/* Additional symbol types for Thumb */ +#define STT_ARM_TFUNC 0xd + +/* ARM-specific values for sh_flags */ +#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */ +#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined + in the input to a link step */ + +/* ARM-specific program header flags */ +#define PF_ARM_SB 0x10000000 /* Segment contains the location + addressed by the static base */ + +/* Processor specific values for the Phdr p_type field. */ +#define PT_ARM_EXIDX 0x70000001 /* .ARM.exidx segment */ + +/* ARM relocs. */ + +#define R_ARM_NONE 0 /* No reloc */ +#define R_ARM_PC24 1 /* PC relative 26 bit branch */ +#define R_ARM_ABS32 2 /* Direct 32 bit */ +#define R_ARM_REL32 3 /* PC relative 32 bit */ +#define R_ARM_PC13 4 +#define R_ARM_ABS16 5 /* Direct 16 bit */ +#define R_ARM_ABS12 6 /* Direct 12 bit */ +#define R_ARM_THM_ABS5 7 +#define R_ARM_ABS8 8 /* Direct 8 bit */ +#define R_ARM_SBREL32 9 +#define R_ARM_THM_PC22 10 +#define R_ARM_THM_PC8 11 +#define R_ARM_AMP_VCALL9 12 +#define R_ARM_SWI24 13 +#define R_ARM_THM_SWI8 14 +#define R_ARM_XPC25 15 +#define R_ARM_THM_XPC22 16 +#define R_ARM_COPY 20 /* Copy symbol at runtime */ +#define R_ARM_GLOB_DAT 21 /* Create GOT entry */ +#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */ +#define R_ARM_RELATIVE 23 /* Adjust by program base */ +#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */ +#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */ +#define R_ARM_GOT32 26 /* 32 bit GOT entry */ +#define R_ARM_PLT32 27 /* 32 bit PLT address */ +#define R_ARM_ALU_PCREL_7_0 32 +#define R_ARM_ALU_PCREL_15_8 33 +#define R_ARM_ALU_PCREL_23_15 34 +#define R_ARM_LDR_SBREL_11_0 35 +#define R_ARM_ALU_SBREL_19_12 36 +#define R_ARM_ALU_SBREL_27_20 37 +#define R_ARM_GNU_VTENTRY 100 +#define R_ARM_GNU_VTINHERIT 101 +#define R_ARM_THM_PC11 102 /* thumb unconditional branch */ +#define R_ARM_THM_PC9 103 /* thumb conditional branch */ +#define R_ARM_RXPC25 249 +#define R_ARM_RSBREL32 250 +#define R_ARM_THM_RPC22 251 +#define R_ARM_RREL32 252 +#define R_ARM_RABS22 253 +#define R_ARM_RPC24 254 +#define R_ARM_RBASE 255 +/* Keep this the last entry. */ +#define R_ARM_NUM 256 + +/* IA-64 specific declarations. */ + +/* Processor specific flags for the Ehdr e_flags field. */ +#define EF_IA_64_MASKOS 0x0000000f /* os-specific flags */ +#define EF_IA_64_ABI64 0x00000010 /* 64-bit ABI */ +#define EF_IA_64_ARCH 0xff000000 /* arch. version mask */ + +/* Processor specific values for the Phdr p_type field. */ +#define PT_IA_64_ARCHEXT (PT_LOPROC + 0) /* arch extension bits */ +#define PT_IA_64_UNWIND (PT_LOPROC + 1) /* ia64 unwind bits */ +#define PT_IA_64_HP_OPT_ANOT (PT_LOOS + 0x12) +#define PT_IA_64_HP_HSL_ANOT (PT_LOOS + 0x13) +#define PT_IA_64_HP_STACK (PT_LOOS + 0x14) + +/* Processor specific flags for the Phdr p_flags field. */ +#define PF_IA_64_NORECOV 0x80000000 /* spec insns w/o recovery */ + +/* Processor specific values for the Shdr sh_type field. */ +#define SHT_IA_64_EXT (SHT_LOPROC + 0) /* extension bits */ +#define SHT_IA_64_UNWIND (SHT_LOPROC + 1) /* unwind bits */ + +/* Processor specific flags for the Shdr sh_flags field. */ +#define SHF_IA_64_SHORT 0x10000000 /* section near gp */ +#define SHF_IA_64_NORECOV 0x20000000 /* spec insns w/o recovery */ + +/* Processor specific values for the Dyn d_tag field. */ +#define DT_IA_64_PLT_RESERVE (DT_LOPROC + 0) +#define DT_IA_64_NUM 1 + +/* IA-64 relocations. */ +#define R_IA64_NONE 0x00 /* none */ +#define R_IA64_IMM14 0x21 /* symbol + addend, add imm14 */ +#define R_IA64_IMM22 0x22 /* symbol + addend, add imm22 */ +#define R_IA64_IMM64 0x23 /* symbol + addend, mov imm64 */ +#define R_IA64_DIR32MSB 0x24 /* symbol + addend, data4 MSB */ +#define R_IA64_DIR32LSB 0x25 /* symbol + addend, data4 LSB */ +#define R_IA64_DIR64MSB 0x26 /* symbol + addend, data8 MSB */ +#define R_IA64_DIR64LSB 0x27 /* symbol + addend, data8 LSB */ +#define R_IA64_GPREL22 0x2a /* @gprel(sym + add), add imm22 */ +#define R_IA64_GPREL64I 0x2b /* @gprel(sym + add), mov imm64 */ +#define R_IA64_GPREL32MSB 0x2c /* @gprel(sym + add), data4 MSB */ +#define R_IA64_GPREL32LSB 0x2d /* @gprel(sym + add), data4 LSB */ +#define R_IA64_GPREL64MSB 0x2e /* @gprel(sym + add), data8 MSB */ +#define R_IA64_GPREL64LSB 0x2f /* @gprel(sym + add), data8 LSB */ +#define R_IA64_LTOFF22 0x32 /* @ltoff(sym + add), add imm22 */ +#define R_IA64_LTOFF64I 0x33 /* @ltoff(sym + add), mov imm64 */ +#define R_IA64_PLTOFF22 0x3a /* @pltoff(sym + add), add imm22 */ +#define R_IA64_PLTOFF64I 0x3b /* @pltoff(sym + add), mov imm64 */ +#define R_IA64_PLTOFF64MSB 0x3e /* @pltoff(sym + add), data8 MSB */ +#define R_IA64_PLTOFF64LSB 0x3f /* @pltoff(sym + add), data8 LSB */ +#define R_IA64_FPTR64I 0x43 /* @fptr(sym + add), mov imm64 */ +#define R_IA64_FPTR32MSB 0x44 /* @fptr(sym + add), data4 MSB */ +#define R_IA64_FPTR32LSB 0x45 /* @fptr(sym + add), data4 LSB */ +#define R_IA64_FPTR64MSB 0x46 /* @fptr(sym + add), data8 MSB */ +#define R_IA64_FPTR64LSB 0x47 /* @fptr(sym + add), data8 LSB */ +#define R_IA64_PCREL60B 0x48 /* @pcrel(sym + add), brl */ +#define R_IA64_PCREL21B 0x49 /* @pcrel(sym + add), ptb, call */ +#define R_IA64_PCREL21M 0x4a /* @pcrel(sym + add), chk.s */ +#define R_IA64_PCREL21F 0x4b /* @pcrel(sym + add), fchkf */ +#define R_IA64_PCREL32MSB 0x4c /* @pcrel(sym + add), data4 MSB */ +#define R_IA64_PCREL32LSB 0x4d /* @pcrel(sym + add), data4 LSB */ +#define R_IA64_PCREL64MSB 0x4e /* @pcrel(sym + add), data8 MSB */ +#define R_IA64_PCREL64LSB 0x4f /* @pcrel(sym + add), data8 LSB */ +#define R_IA64_LTOFF_FPTR22 0x52 /* @ltoff(@fptr(s+a)), imm22 */ +#define R_IA64_LTOFF_FPTR64I 0x53 /* @ltoff(@fptr(s+a)), imm64 */ +#define R_IA64_LTOFF_FPTR32MSB 0x54 /* @ltoff(@fptr(s+a)), data4 MSB */ +#define R_IA64_LTOFF_FPTR32LSB 0x55 /* @ltoff(@fptr(s+a)), data4 LSB */ +#define R_IA64_LTOFF_FPTR64MSB 0x56 /* @ltoff(@fptr(s+a)), data8 MSB */ +#define R_IA64_LTOFF_FPTR64LSB 0x57 /* @ltoff(@fptr(s+a)), data8 LSB */ +#define R_IA64_SEGREL32MSB 0x5c /* @segrel(sym + add), data4 MSB */ +#define R_IA64_SEGREL32LSB 0x5d /* @segrel(sym + add), data4 LSB */ +#define R_IA64_SEGREL64MSB 0x5e /* @segrel(sym + add), data8 MSB */ +#define R_IA64_SEGREL64LSB 0x5f /* @segrel(sym + add), data8 LSB */ +#define R_IA64_SECREL32MSB 0x64 /* @secrel(sym + add), data4 MSB */ +#define R_IA64_SECREL32LSB 0x65 /* @secrel(sym + add), data4 LSB */ +#define R_IA64_SECREL64MSB 0x66 /* @secrel(sym + add), data8 MSB */ +#define R_IA64_SECREL64LSB 0x67 /* @secrel(sym + add), data8 LSB */ +#define R_IA64_REL32MSB 0x6c /* data 4 + REL */ +#define R_IA64_REL32LSB 0x6d /* data 4 + REL */ +#define R_IA64_REL64MSB 0x6e /* data 8 + REL */ +#define R_IA64_REL64LSB 0x6f /* data 8 + REL */ +#define R_IA64_LTV32MSB 0x74 /* symbol + addend, data4 MSB */ +#define R_IA64_LTV32LSB 0x75 /* symbol + addend, data4 LSB */ +#define R_IA64_LTV64MSB 0x76 /* symbol + addend, data8 MSB */ +#define R_IA64_LTV64LSB 0x77 /* symbol + addend, data8 LSB */ +#define R_IA64_PCREL21BI 0x79 /* @pcrel(sym + add), 21bit inst */ +#define R_IA64_PCREL22 0x7a /* @pcrel(sym + add), 22bit inst */ +#define R_IA64_PCREL64I 0x7b /* @pcrel(sym + add), 64bit inst */ +#define R_IA64_IPLTMSB 0x80 /* dynamic reloc, imported PLT, MSB */ +#define R_IA64_IPLTLSB 0x81 /* dynamic reloc, imported PLT, LSB */ +#define R_IA64_COPY 0x84 /* copy relocation */ +#define R_IA64_SUB 0x85 /* Addend and symbol difference */ +#define R_IA64_LTOFF22X 0x86 /* LTOFF22, relaxable. */ +#define R_IA64_LDXMOV 0x87 /* Use of LTOFF22X. */ +#define R_IA64_TPREL14 0x91 /* @tprel(sym + add), imm14 */ +#define R_IA64_TPREL22 0x92 /* @tprel(sym + add), imm22 */ +#define R_IA64_TPREL64I 0x93 /* @tprel(sym + add), imm64 */ +#define R_IA64_TPREL64MSB 0x96 /* @tprel(sym + add), data8 MSB */ +#define R_IA64_TPREL64LSB 0x97 /* @tprel(sym + add), data8 LSB */ +#define R_IA64_LTOFF_TPREL22 0x9a /* @ltoff(@tprel(s+a)), imm2 */ +#define R_IA64_DTPMOD64MSB 0xa6 /* @dtpmod(sym + add), data8 MSB */ +#define R_IA64_DTPMOD64LSB 0xa7 /* @dtpmod(sym + add), data8 LSB */ +#define R_IA64_LTOFF_DTPMOD22 0xaa /* @ltoff(@dtpmod(sym + add)), imm22 */ +#define R_IA64_DTPREL14 0xb1 /* @dtprel(sym + add), imm14 */ +#define R_IA64_DTPREL22 0xb2 /* @dtprel(sym + add), imm22 */ +#define R_IA64_DTPREL64I 0xb3 /* @dtprel(sym + add), imm64 */ +#define R_IA64_DTPREL32MSB 0xb4 /* @dtprel(sym + add), data4 MSB */ +#define R_IA64_DTPREL32LSB 0xb5 /* @dtprel(sym + add), data4 LSB */ +#define R_IA64_DTPREL64MSB 0xb6 /* @dtprel(sym + add), data8 MSB */ +#define R_IA64_DTPREL64LSB 0xb7 /* @dtprel(sym + add), data8 LSB */ +#define R_IA64_LTOFF_DTPREL22 0xba /* @ltoff(@dtprel(s+a)), imm22 */ + +/* SH specific declarations */ + +/* SH relocs. */ +#define R_SH_NONE 0 +#define R_SH_DIR32 1 +#define R_SH_REL32 2 +#define R_SH_DIR8WPN 3 +#define R_SH_IND12W 4 +#define R_SH_DIR8WPL 5 +#define R_SH_DIR8WPZ 6 +#define R_SH_DIR8BP 7 +#define R_SH_DIR8W 8 +#define R_SH_DIR8L 9 +#define R_SH_SWITCH16 25 +#define R_SH_SWITCH32 26 +#define R_SH_USES 27 +#define R_SH_COUNT 28 +#define R_SH_ALIGN 29 +#define R_SH_CODE 30 +#define R_SH_DATA 31 +#define R_SH_LABEL 32 +#define R_SH_SWITCH8 33 +#define R_SH_GNU_VTINHERIT 34 +#define R_SH_GNU_VTENTRY 35 +#define R_SH_TLS_GD_32 144 +#define R_SH_TLS_LD_32 145 +#define R_SH_TLS_LDO_32 146 +#define R_SH_TLS_IE_32 147 +#define R_SH_TLS_LE_32 148 +#define R_SH_TLS_DTPMOD32 149 +#define R_SH_TLS_DTPOFF32 150 +#define R_SH_TLS_TPOFF32 151 +#define R_SH_GOT32 160 +#define R_SH_PLT32 161 +#define R_SH_COPY 162 +#define R_SH_GLOB_DAT 163 +#define R_SH_JMP_SLOT 164 +#define R_SH_RELATIVE 165 +#define R_SH_GOTOFF 166 +#define R_SH_GOTPC 167 +/* Keep this the last entry. */ +#define R_SH_NUM 256 + +/* Additional s390 relocs */ + +#define R_390_NONE 0 /* No reloc. */ +#define R_390_8 1 /* Direct 8 bit. */ +#define R_390_12 2 /* Direct 12 bit. */ +#define R_390_16 3 /* Direct 16 bit. */ +#define R_390_32 4 /* Direct 32 bit. */ +#define R_390_PC32 5 /* PC relative 32 bit. */ +#define R_390_GOT12 6 /* 12 bit GOT offset. */ +#define R_390_GOT32 7 /* 32 bit GOT offset. */ +#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ +#define R_390_COPY 9 /* Copy symbol at runtime. */ +#define R_390_GLOB_DAT 10 /* Create GOT entry. */ +#define R_390_JMP_SLOT 11 /* Create PLT entry. */ +#define R_390_RELATIVE 12 /* Adjust by program base. */ +#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ +#define R_390_GOTPC 14 /* 32 bit PC relative offset to GOT. */ +#define R_390_GOT16 15 /* 16 bit GOT offset. */ +#define R_390_PC16 16 /* PC relative 16 bit. */ +#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ +#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ +#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ +#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ +#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ +#define R_390_64 22 /* Direct 64 bit. */ +#define R_390_PC64 23 /* PC relative 64 bit. */ +#define R_390_GOT64 24 /* 64 bit GOT offset. */ +#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ +#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ +#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ +#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ +#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ +#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ +#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ +#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ +#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ +#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ +#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ +#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ +#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ +#define R_390_TLS_GDCALL 38 /* Tag for function call in general + dynamic TLS code. */ +#define R_390_TLS_LDCALL 39 /* Tag for function call in local + dynamic TLS code. */ +#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic + thread local data. */ +#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic + thread local data. */ +#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic + thread local data in LE code. */ +#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic + thread local data in LE code. */ +#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to + static TLS block. */ +#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to + static TLS block. */ +#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS + block. */ +#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS + block. */ +#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ +#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ +#define R_390_TLS_TPOFF 56 /* Negated offset in static TLS + block. */ +#define R_390_20 57 /* Direct 20 bit. */ +#define R_390_GOT20 58 /* 20 bit GOT offset. */ +#define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */ +#define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS + block offset. */ +/* Keep this the last entry. */ +#define R_390_NUM 61 + + +/* CRIS relocations. */ +#define R_CRIS_NONE 0 +#define R_CRIS_8 1 +#define R_CRIS_16 2 +#define R_CRIS_32 3 +#define R_CRIS_8_PCREL 4 +#define R_CRIS_16_PCREL 5 +#define R_CRIS_32_PCREL 6 +#define R_CRIS_GNU_VTINHERIT 7 +#define R_CRIS_GNU_VTENTRY 8 +#define R_CRIS_COPY 9 +#define R_CRIS_GLOB_DAT 10 +#define R_CRIS_JUMP_SLOT 11 +#define R_CRIS_RELATIVE 12 +#define R_CRIS_16_GOT 13 +#define R_CRIS_32_GOT 14 +#define R_CRIS_16_GOTPLT 15 +#define R_CRIS_32_GOTPLT 16 +#define R_CRIS_32_GOTREL 17 +#define R_CRIS_32_PLT_GOTREL 18 +#define R_CRIS_32_PLT_PCREL 19 + +#define R_CRIS_NUM 20 + + +/* AMD x86-64 relocations. */ +#define R_X86_64_NONE 0 /* No reloc */ +#define R_X86_64_64 1 /* Direct 64 bit */ +#define R_X86_64_PC32 2 /* PC relative 32 bit signed */ +#define R_X86_64_GOT32 3 /* 32 bit GOT entry */ +#define R_X86_64_PLT32 4 /* 32 bit PLT address */ +#define R_X86_64_COPY 5 /* Copy symbol at runtime */ +#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */ +#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */ +#define R_X86_64_RELATIVE 8 /* Adjust by program base */ +#define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative + offset to GOT */ +#define R_X86_64_32 10 /* Direct 32 bit zero extended */ +#define R_X86_64_32S 11 /* Direct 32 bit sign extended */ +#define R_X86_64_16 12 /* Direct 16 bit zero extended */ +#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */ +#define R_X86_64_8 14 /* Direct 8 bit sign extended */ +#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */ +#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ +#define R_X86_64_DTPOFF64 17 /* Offset in module's TLS block */ +#define R_X86_64_TPOFF64 18 /* Offset in initial TLS block */ +#define R_X86_64_TLSGD 19 /* 32 bit signed PC relative offset + to two GOT entries for GD symbol */ +#define R_X86_64_TLSLD 20 /* 32 bit signed PC relative offset + to two GOT entries for LD symbol */ +#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ +#define R_X86_64_GOTTPOFF 22 /* 32 bit signed PC relative offset + to GOT entry for IE symbol */ +#define R_X86_64_TPOFF32 23 /* Offset in initial TLS block */ + +#define R_X86_64_NUM 24 + + +/* AM33 relocations. */ +#define R_MN10300_NONE 0 /* No reloc. */ +#define R_MN10300_32 1 /* Direct 32 bit. */ +#define R_MN10300_16 2 /* Direct 16 bit. */ +#define R_MN10300_8 3 /* Direct 8 bit. */ +#define R_MN10300_PCREL32 4 /* PC-relative 32-bit. */ +#define R_MN10300_PCREL16 5 /* PC-relative 16-bit signed. */ +#define R_MN10300_PCREL8 6 /* PC-relative 8-bit signed. */ +#define R_MN10300_GNU_VTINHERIT 7 /* Ancient C++ vtable garbage... */ +#define R_MN10300_GNU_VTENTRY 8 /* ... collection annotation. */ +#define R_MN10300_24 9 /* Direct 24 bit. */ +#define R_MN10300_GOTPC32 10 /* 32-bit PCrel offset to GOT. */ +#define R_MN10300_GOTPC16 11 /* 16-bit PCrel offset to GOT. */ +#define R_MN10300_GOTOFF32 12 /* 32-bit offset from GOT. */ +#define R_MN10300_GOTOFF24 13 /* 24-bit offset from GOT. */ +#define R_MN10300_GOTOFF16 14 /* 16-bit offset from GOT. */ +#define R_MN10300_PLT32 15 /* 32-bit PCrel to PLT entry. */ +#define R_MN10300_PLT16 16 /* 16-bit PCrel to PLT entry. */ +#define R_MN10300_GOT32 17 /* 32-bit offset to GOT entry. */ +#define R_MN10300_GOT24 18 /* 24-bit offset to GOT entry. */ +#define R_MN10300_GOT16 19 /* 16-bit offset to GOT entry. */ +#define R_MN10300_COPY 20 /* Copy symbol at runtime. */ +#define R_MN10300_GLOB_DAT 21 /* Create GOT entry. */ +#define R_MN10300_JMP_SLOT 22 /* Create PLT entry. */ +#define R_MN10300_RELATIVE 23 /* Adjust by program base. */ + +#define R_MN10300_NUM 24 + + +/* M32R relocs. */ +#define R_M32R_NONE 0 /* No reloc. */ +#define R_M32R_16 1 /* Direct 16 bit. */ +#define R_M32R_32 2 /* Direct 32 bit. */ +#define R_M32R_24 3 /* Direct 24 bit. */ +#define R_M32R_10_PCREL 4 /* PC relative 10 bit shifted. */ +#define R_M32R_18_PCREL 5 /* PC relative 18 bit shifted. */ +#define R_M32R_26_PCREL 6 /* PC relative 26 bit shifted. */ +#define R_M32R_HI16_ULO 7 /* High 16 bit with unsigned low. */ +#define R_M32R_HI16_SLO 8 /* High 16 bit with signed low. */ +#define R_M32R_LO16 9 /* Low 16 bit. */ +#define R_M32R_SDA16 10 /* 16 bit offset in SDA. */ +#define R_M32R_GNU_VTINHERIT 11 +#define R_M32R_GNU_VTENTRY 12 +/* M32R relocs use SHT_RELA. */ +#define R_M32R_16_RELA 33 /* Direct 16 bit. */ +#define R_M32R_32_RELA 34 /* Direct 32 bit. */ +#define R_M32R_24_RELA 35 /* Direct 24 bit. */ +#define R_M32R_10_PCREL_RELA 36 /* PC relative 10 bit shifted. */ +#define R_M32R_18_PCREL_RELA 37 /* PC relative 18 bit shifted. */ +#define R_M32R_26_PCREL_RELA 38 /* PC relative 26 bit shifted. */ +#define R_M32R_HI16_ULO_RELA 39 /* High 16 bit with unsigned low */ +#define R_M32R_HI16_SLO_RELA 40 /* High 16 bit with signed low */ +#define R_M32R_LO16_RELA 41 /* Low 16 bit */ +#define R_M32R_SDA16_RELA 42 /* 16 bit offset in SDA */ +#define R_M32R_RELA_GNU_VTINHERIT 43 +#define R_M32R_RELA_GNU_VTENTRY 44 + +#define R_M32R_GOT24 48 /* 24 bit GOT entry */ +#define R_M32R_26_PLTREL 49 /* 26 bit PC relative to PLT shifted */ +#define R_M32R_COPY 50 /* Copy symbol at runtime */ +#define R_M32R_GLOB_DAT 51 /* Create GOT entry */ +#define R_M32R_JMP_SLOT 52 /* Create PLT entry */ +#define R_M32R_RELATIVE 53 /* Adjust by program base */ +#define R_M32R_GOTOFF 54 /* 24 bit offset to GOT */ +#define R_M32R_GOTPC24 55 /* 24 bit PC relative offset to GOT */ +#define R_M32R_GOT16_HI_ULO 56 /* High 16 bit GOT entry with unsigned + low */ +#define R_M32R_GOT16_HI_SLO 57 /* High 16 bit GOT entry with signed + low */ +#define R_M32R_GOT16_LO 58 /* Low 16 bit GOT entry */ +#define R_M32R_GOTPC_HI_ULO 59 /* High 16 bit PC relative offset to + GOT with unsigned low */ +#define R_M32R_GOTPC_HI_SLO 60 /* High 16 bit PC relative offset to + GOT with signed low */ +#define R_M32R_GOTPC_LO 61 /* Low 16 bit PC relative offset to + GOT */ +#define R_M32R_GOTOFF_HI_ULO 62 /* High 16 bit offset to GOT + with unsigned low */ +#define R_M32R_GOTOFF_HI_SLO 63 /* High 16 bit offset to GOT + with signed low */ +#define R_M32R_GOTOFF_LO 64 /* Low 16 bit offset to GOT */ +#define R_M32R_NUM 256 /* Keep this the last entry. */ + + +__END_DECLS + +#endif /* elf.h */ diff --git a/libelf/elf32_checksum.c b/libelf/elf32_checksum.c new file mode 100644 index 0000000..a54ebbc --- /dev/null +++ b/libelf/elf32_checksum.c @@ -0,0 +1,145 @@ +/* Compute simple checksum from permanent parts of the ELF file. + Copyright (C) 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include + +#include "gelf.h" +#include "libelfP.h" +#include "elf-knowledge.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +/* The SECTION_STRIP_P macro wants to call into libebl which we cannot + do and do not have to do here. Provide a dummy replacement. */ +#define ebl_debugscn_p(ebl, name) true + + +#define process_block(crc, data) \ + __libelf_crc32 (crc, data->d_buf, data->d_size) + + +long int +elfw2(LIBELFBITS,checksum) (elf) + Elf *elf; +{ + size_t shstrndx; + Elf_Scn *scn; + long int result = 0; + unsigned char *ident; + bool same_byte_order; + + if (elf == NULL) + return -1l; + + /* Find the section header string table. */ + if (INTUSE(elf_getshstrndx) (elf, &shstrndx) < 0) + { + /* This can only happen if the ELF handle is not for real. */ + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return -1l; + } + + /* Determine whether the byte order of the file and that of the host + is the same. */ + ident = elf->state.ELFW(elf,LIBELFBITS).ehdr->e_ident; + same_byte_order = ((ident[EI_DATA] == ELFDATA2LSB + && __BYTE_ORDER == __LITTLE_ENDIAN) + || (ident[EI_DATA] == ELFDATA2MSB + && __BYTE_ORDER == __BIG_ENDIAN)); + + /* Iterate over all sections to find those which are not strippable. */ + scn = NULL; + while ((scn = INTUSE(elf_nextscn) (elf, scn)) != NULL) + { + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + Elf_Data *data; + + /* Get the section header. */ + shdr = INTUSE(gelf_getshdr) (scn, &shdr_mem); + if (shdr == NULL) + { + __libelf_seterrno (ELF_E_INVALID_SECTION_HEADER); + return -1l; + } + + if (SECTION_STRIP_P (shdr, + INTUSE(elf_strptr) (elf, shstrndx, shdr->sh_name), + true)) + /* The section can be stripped. Don't use it. */ + continue; + + /* Do not look at NOBITS sections. */ + if (shdr->sh_type == SHT_NOBITS) + continue; + + /* To compute the checksum we need to get to the data. For + repeatable results we must use the external format. The data + we get with 'elf'getdata' might be changed for endianess + reasons. Therefore we use 'elf_rawdata' if possible. But + this function can fail if the data was constructed by the + program. In this case we have to use 'elf_getdata' and + eventually convert the data to the external format. */ + data = INTUSE(elf_rawdata) (scn, NULL); + if (data != NULL) + { + /* The raw data is available. */ + result = process_block (result, data); + + /* Maybe the user added more data. These blocks cannot be + read using 'elf_rawdata'. Simply proceed with looking + for more data block with 'elf_getdata'. */ + } + + /* Iterate through the list of data blocks. */ + while ((data = INTUSE(elf_getdata) (scn, data)) != NULL) + /* If the file byte order is the same as the host byte order + process the buffer directly. If the data is just a stream + of bytes which the library will not convert we can use it + as well. */ + if (likely (same_byte_order) || data->d_type == ELF_T_BYTE) + result = process_block (result, data); + else + { + /* Convert the data to file byte order. */ + if (INTUSE(elfw2(LIBELFBITS,xlatetof)) (data, data, ident[EI_DATA]) + == NULL) + return -1l; + + result = process_block (result, data); + + /* And convert it back. */ + if (INTUSE(elfw2(LIBELFBITS,xlatetom)) (data, data, ident[EI_DATA]) + == NULL) + return -1l; + } + } + + return result; +} +INTDEF(elfw2(LIBELFBITS,checksum)) diff --git a/libelf/elf32_fsize.c b/libelf/elf32_fsize.c new file mode 100644 index 0000000..5075019 --- /dev/null +++ b/libelf/elf32_fsize.c @@ -0,0 +1,59 @@ +/* Return the size of an object file type. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include "libelfP.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +size_t +elfw2(LIBELFBITS, fsize) (type, count, version) + Elf_Type type; + size_t count; + unsigned int version; +{ + /* We do not have differences between file and memory sizes. Better + not since otherwise `mmap' would not work. */ + if (unlikely (version == EV_NONE) || unlikely (version >= EV_NUM)) + { + __libelf_seterrno (ELF_E_UNKNOWN_VERSION); + return 0; + } + + if (unlikely (type >= ELF_T_NUM)) + { + __libelf_seterrno (ELF_E_UNKNOWN_TYPE); + return 0; + } + +#if EV_NUM != 2 + return (count + * __libelf_type_sizes[version - 1][ELFW(ELFCLASS,LIBELFBITS) - 1][type]); +#else + return (count + * __libelf_type_sizes[0][ELFW(ELFCLASS,LIBELFBITS) - 1][type]); +#endif +} +#define local_strong_alias(n1, n2) strong_alias (n1, n2) +local_strong_alias (elfw2(LIBELFBITS, fsize), __elfw2(LIBELFBITS, msize)) diff --git a/libelf/elf32_getehdr.c b/libelf/elf32_getehdr.c new file mode 100644 index 0000000..efd6002 --- /dev/null +++ b/libelf/elf32_getehdr.c @@ -0,0 +1,65 @@ +/* Get ELF header. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +ElfW2(LIBELFBITS,Ehdr) * +elfw2(LIBELFBITS,getehdr) (elf) + Elf *elf; +{ + ElfW2(LIBELFBITS,Ehdr) *result; + + if (elf == NULL) + return NULL; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + rwlock_rdlock (elf->lock); + + if (elf->class == 0) + elf->class = ELFW(ELFCLASS,LIBELFBITS); + else if (unlikely (elf->class != ELFW(ELFCLASS,LIBELFBITS))) + { + __libelf_seterrno (ELF_E_INVALID_CLASS); + result = NULL; + goto out; + } + + result = elf->state.ELFW(elf,LIBELFBITS).ehdr; + + out: + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elfw2(LIBELFBITS,getehdr)) diff --git a/libelf/elf32_getphdr.c b/libelf/elf32_getphdr.c new file mode 100644 index 0000000..2569368 --- /dev/null +++ b/libelf/elf32_getphdr.c @@ -0,0 +1,198 @@ +/* Get ELF program header table. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" +#include "common.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +ElfW2(LIBELFBITS,Phdr) * +elfw2(LIBELFBITS,getphdr) (elf) + Elf *elf; +{ + ElfW2(LIBELFBITS,Phdr) *result; + + if (elf == NULL) + return NULL; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* If the program header entry has already been filled in the code + below must already have been run. So the class is set, too. No + need to waste any more time here. */ + result = elf->state.ELFW(elf,LIBELFBITS).phdr; + if (likely (result != NULL)) + return result; + + rwlock_wrlock (elf->lock); + + if (elf->class == 0) + elf->class = ELFW(ELFCLASS,LIBELFBITS); + else if (elf->class != ELFW(ELFCLASS,LIBELFBITS)) + { + __libelf_seterrno (ELF_E_INVALID_CLASS); + result = NULL; + goto out; + } + + if (likely (result == NULL)) + { + /* Read the section header table. */ + ElfW2(LIBELFBITS,Ehdr) *ehdr = elf->state.ELFW(elf,LIBELFBITS).ehdr; + + /* If no program header exists return NULL. */ + size_t phnum = ehdr->e_phnum; + if (phnum == 0) + { + __libelf_seterrno (ELF_E_NO_PHDR); + goto out; + } + + size_t size = phnum * sizeof (ElfW2(LIBELFBITS,Phdr)); + + if (elf->map_address != NULL) + { + /* All the data is already mapped. Use it. */ + if (ehdr->e_ident[EI_DATA] == MY_ELFDATA + && (ALLOW_UNALIGNED + || (ehdr->e_phoff + & (__alignof__ (ElfW2(LIBELFBITS,Phdr)) - 1)) == 0)) + /* Simply use the mapped data. */ + elf->state.ELFW(elf,LIBELFBITS).phdr = (ElfW2(LIBELFBITS,Phdr) *) + ((char *) elf->map_address + elf->start_offset + ehdr->e_phoff); + else + { + ElfW2(LIBELFBITS,Phdr) *notcvt; + ElfW2(LIBELFBITS,Phdr) *phdr; + + /* Allocate memory for the program headers. We know the number + of entries from the ELF header. */ + phdr = elf->state.ELFW(elf,LIBELFBITS).phdr = + (ElfW2(LIBELFBITS,Phdr) *) malloc (size); + if (elf->state.ELFW(elf,LIBELFBITS).phdr == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + goto out; + } + elf->state.ELFW(elf,LIBELFBITS).phdr_flags |= + ELF_F_MALLOCED | ELF_F_DIRTY; + + /* Now copy the data and at the same time convert the + byte order. */ + if (ALLOW_UNALIGNED + || (ehdr->e_phoff + & (__alignof__ (ElfW2(LIBELFBITS,Phdr)) - 1)) == 0) + notcvt = (ElfW2(LIBELFBITS,Phdr) *) + ((char *) elf->map_address + + elf->start_offset + ehdr->e_phoff); + else + { + notcvt = (ElfW2(LIBELFBITS,Phdr) *) alloca (size); + memcpy (notcvt, ((char *) elf->map_address + + elf->start_offset + ehdr->e_phoff), + size); + } + + for (size_t cnt = 0; cnt < phnum; ++cnt) + { + CONVERT_TO (phdr[cnt].p_type, notcvt[cnt].p_type); + CONVERT_TO (phdr[cnt].p_offset, notcvt[cnt].p_offset); + CONVERT_TO (phdr[cnt].p_vaddr, notcvt[cnt].p_vaddr); + CONVERT_TO (phdr[cnt].p_paddr, notcvt[cnt].p_paddr); + CONVERT_TO (phdr[cnt].p_filesz, notcvt[cnt].p_filesz); + CONVERT_TO (phdr[cnt].p_memsz, notcvt[cnt].p_memsz); + CONVERT_TO (phdr[cnt].p_flags, notcvt[cnt].p_flags); + CONVERT_TO (phdr[cnt].p_align, notcvt[cnt].p_align); + } + } + } + else if (likely (elf->fildes != -1)) + { + /* Allocate memory for the program headers. We know the number + of entries from the ELF header. */ + elf->state.ELFW(elf,LIBELFBITS).phdr = + (ElfW2(LIBELFBITS,Phdr) *) malloc (size); + if (elf->state.ELFW(elf,LIBELFBITS).phdr == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + goto out; + } + elf->state.ELFW(elf,LIBELFBITS).phdr_flags |= ELF_F_MALLOCED; + + /* Read the header. */ + if ((size_t) pread (elf->fildes, + elf->state.ELFW(elf,LIBELFBITS).phdr, size, + (elf->start_offset + ehdr->e_phoff)) != size) + { + /* Severe problems. We cannot read the data. */ + __libelf_seterrno (ELF_E_READ_ERROR); + free (elf->state.ELFW(elf,LIBELFBITS).phdr); + elf->state.ELFW(elf,LIBELFBITS).phdr = NULL; + goto out; + } + + /* If the byte order of the file is not the same as the one + of the host convert the data now. */ + if (ehdr->e_ident[EI_DATA] != MY_ELFDATA) + { + ElfW2(LIBELFBITS,Phdr) *phdr + = elf->state.ELFW(elf,LIBELFBITS).phdr; + + for (size_t cnt = 0; cnt < phnum; ++cnt) + { + CONVERT (phdr[cnt].p_type); + CONVERT (phdr[cnt].p_offset); + CONVERT (phdr[cnt].p_vaddr); + CONVERT (phdr[cnt].p_paddr); + CONVERT (phdr[cnt].p_filesz); + CONVERT (phdr[cnt].p_memsz); + CONVERT (phdr[cnt].p_flags); + CONVERT (phdr[cnt].p_align); + } + } + } + else + { + /* The file descriptor was already enabled and not all data was + read. */ + __libelf_seterrno (ELF_E_FD_DISABLED); + goto out; + } + + result = elf->state.ELFW(elf,LIBELFBITS).phdr; + } + + out: + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elfw2(LIBELFBITS,getphdr)) diff --git a/libelf/elf32_getshdr.c b/libelf/elf32_getshdr.c new file mode 100644 index 0000000..1e26e85 --- /dev/null +++ b/libelf/elf32_getshdr.c @@ -0,0 +1,182 @@ +/* Return section header. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" +#include "common.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +ElfW2(LIBELFBITS,Shdr) * +elfw2(LIBELFBITS,getshdr) (scn) + Elf_Scn *scn; +{ + ElfW2(LIBELFBITS,Shdr) *result; + + if (scn == NULL) + return NULL; + + if (unlikely (scn->elf->state.elf.ehdr == NULL)) + { + __libelf_seterrno (ELF_E_WRONG_ORDER_EHDR); + return NULL; + } + + if (unlikely (scn->elf->class != ELFW(ELFCLASS,LIBELFBITS))) + { + __libelf_seterrno (ELF_E_INVALID_CLASS); + return NULL; + } + + result = scn->shdr.ELFW(e,LIBELFBITS); + if (result == NULL) + { + /* Read the section header table. */ + Elf *elf = scn->elf; + ElfW2(LIBELFBITS,Ehdr) *ehdr = elf->state.ELFW(elf,LIBELFBITS).ehdr; + + rwlock_wrlock (elf->lock); + + /* Try again, maybe the data is there now. */ + result = scn->shdr.ELFW(e,LIBELFBITS); + if (result != NULL) + goto out; + + size_t shnum; + if (INTUSE (elf_getshnum) (elf, &shnum) != 0) + goto out; + size_t size = shnum * sizeof (ElfW2(LIBELFBITS,Shdr)); + + /* Allocate memory for the program headers. We know the number + of entries from the ELF header. */ + ElfW2(LIBELFBITS,Shdr) *shdr = elf->state.ELFW(elf,LIBELFBITS).shdr = + (ElfW2(LIBELFBITS,Shdr) *) malloc (size); + if (elf->state.ELFW(elf,LIBELFBITS).shdr == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + goto out; + } + elf->state.ELFW(elf,LIBELFBITS).shdr_malloced = 1; + + if (elf->map_address != NULL) + { + ElfW2(LIBELFBITS,Shdr) *notcvt; + + /* All the data is already mapped. If we could use it + directly this would already have happened. */ + assert (ehdr->e_ident[EI_DATA] != MY_ELFDATA + || (! ALLOW_UNALIGNED + && (ehdr->e_shoff + & (__alignof__ (ElfW2(LIBELFBITS,Shdr)) - 1)) != 0)); + + /* Now copy the data and at the same time convert the byte + order. */ + if (ALLOW_UNALIGNED + || (ehdr->e_shoff + & (__alignof__ (ElfW2(LIBELFBITS,Shdr)) - 1)) == 0) + notcvt = (ElfW2(LIBELFBITS,Shdr) *) + ((char *) elf->map_address + + elf->start_offset + ehdr->e_shoff); + else + { + notcvt = (ElfW2(LIBELFBITS,Shdr) *) alloca (size); + memcpy (notcvt, ((char *) elf->map_address + + elf->start_offset + ehdr->e_shoff), + size); + } + + for (size_t cnt = 0; cnt < shnum; ++cnt) + { + CONVERT_TO (shdr[cnt].sh_name, notcvt[cnt].sh_name); + CONVERT_TO (shdr[cnt].sh_type, notcvt[cnt].sh_type); + CONVERT_TO (shdr[cnt].sh_flags, notcvt[cnt].sh_flags); + CONVERT_TO (shdr[cnt].sh_addr, notcvt[cnt].sh_addr); + CONVERT_TO (shdr[cnt].sh_offset, notcvt[cnt].sh_offset); + CONVERT_TO (shdr[cnt].sh_size, notcvt[cnt].sh_size); + CONVERT_TO (shdr[cnt].sh_link, notcvt[cnt].sh_link); + CONVERT_TO (shdr[cnt].sh_info, notcvt[cnt].sh_info); + CONVERT_TO (shdr[cnt].sh_addralign, notcvt[cnt].sh_addralign); + CONVERT_TO (shdr[cnt].sh_entsize, notcvt[cnt].sh_entsize); + } + } + else if (elf->fildes != -1) + { + /* Read the header. */ + if ((size_t) pread (elf->fildes, + elf->state.ELFW(elf,LIBELFBITS).shdr, size, + elf->start_offset + ehdr->e_shoff) != size) + { + /* Severe problems. We cannot read the data. */ + __libelf_seterrno (ELF_E_READ_ERROR); + goto free_and_out; + } + + /* If the byte order of the file is not the same as the one + of the host convert the data now. */ + if (ehdr->e_ident[EI_DATA] != MY_ELFDATA) + for (size_t cnt = 0; cnt < shnum; ++cnt) + { + CONVERT (shdr[cnt].sh_name); + CONVERT (shdr[cnt].sh_type); + CONVERT (shdr[cnt].sh_flags); + CONVERT (shdr[cnt].sh_addr); + CONVERT (shdr[cnt].sh_offset); + CONVERT (shdr[cnt].sh_size); + CONVERT (shdr[cnt].sh_link); + CONVERT (shdr[cnt].sh_info); + CONVERT (shdr[cnt].sh_addralign); + CONVERT (shdr[cnt].sh_entsize); + } + } + else + { + /* The file descriptor was already enabled and not all data was + read. Undo the allocation. */ + __libelf_seterrno (ELF_E_FD_DISABLED); + + free_and_out: + free (shdr); + elf->state.ELFW(elf,LIBELFBITS).shdr = NULL; + elf->state.ELFW(elf,LIBELFBITS).shdr_malloced = 0; + + goto out; + } + + /* Set the pointers in the `scn's. */ + for (size_t cnt = 0; cnt < shnum; ++cnt) + elf->state.ELFW(elf,LIBELFBITS).scns.data[cnt].shdr.ELFW(e,LIBELFBITS) + = &elf->state.ELFW(elf,LIBELFBITS).shdr[cnt]; + + result = scn->shdr.ELFW(e,LIBELFBITS); + assert (result != NULL); + + out: + rwlock_unlock (elf->lock); + } + + return result; +} +INTDEF(elfw2(LIBELFBITS,getshdr)) diff --git a/libelf/elf32_newehdr.c b/libelf/elf32_newehdr.c new file mode 100644 index 0000000..658ad46 --- /dev/null +++ b/libelf/elf32_newehdr.c @@ -0,0 +1,80 @@ +/* Create new ELF header. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +ElfW2(LIBELFBITS,Ehdr) * +elfw2(LIBELFBITS,newehdr) (elf) + Elf *elf; +{ + ElfW2(LIBELFBITS,Ehdr) *result; + + if (elf == NULL) + return NULL; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + rwlock_wrlock (elf->lock); + + if (elf->class == 0) + elf->class = ELFW(ELFCLASS,LIBELFBITS); + else if (unlikely (elf->class != ELFW(ELFCLASS,LIBELFBITS))) + { + __libelf_seterrno (ELF_E_INVALID_CLASS); + result = NULL; + goto out; + } + + /* Don't create an ELF header if one already exists. */ + if (elf->state.ELFW(elf,LIBELFBITS).ehdr == NULL) + { + /* We use the memory in the ELF descriptor. */ + elf->state.ELFW(elf,LIBELFBITS).ehdr = + &elf->state.ELFW(elf,LIBELFBITS).ehdr_mem; + + /* We clear this memory. */ + memset (elf->state.ELFW(elf,LIBELFBITS).ehdr, '\0', + sizeof (ElfW2(LIBELFBITS,Ehdr))); + + /* Mark the ELF header has modified. */ + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags |= ELF_F_DIRTY; + } + + result = elf->state.ELFW(elf,LIBELFBITS).ehdr; + + out: + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elfw2(LIBELFBITS,newehdr)) diff --git a/libelf/elf32_newphdr.c b/libelf/elf32_newphdr.c new file mode 100644 index 0000000..74a2387 --- /dev/null +++ b/libelf/elf32_newphdr.c @@ -0,0 +1,138 @@ +/* Create new ELF program header table. + Copyright (C) 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +ElfW2(LIBELFBITS,Phdr) * +elfw2(LIBELFBITS,newphdr) (elf, count) + Elf *elf; + size_t count; +{ + ElfW2(LIBELFBITS,Phdr) *result; + + if (elf == NULL) + return NULL; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + rwlock_wrlock (elf->lock); + + if (elf->class == 0) + elf->class = ELFW(ELFCLASS,LIBELFBITS); + else if (unlikely (elf->class != ELFW(ELFCLASS,LIBELFBITS))) + { + __libelf_seterrno (ELF_E_INVALID_CLASS); + result = NULL; + goto out; + } + + if (unlikely (elf->state.ELFW(elf,LIBELFBITS).ehdr == NULL)) + { + __libelf_seterrno (ELF_E_WRONG_ORDER_EHDR); + result = NULL; + goto out; + } + + /* A COUNT of zero means remove existing table. */ + if (count == 0) + { + /* Free the old program header. */ + if (elf->state.ELFW(elf,LIBELFBITS).phdr != NULL) + { + if (elf->state.ELFW(elf,LIBELFBITS).phdr_flags & ELF_F_MALLOCED) + free (elf->state.ELFW(elf,LIBELFBITS).phdr); + + /* Set the pointer to NULL. */ + elf->state.ELFW(elf,LIBELFBITS).phdr = NULL; + /* Set the `e_phnum' member to the new value. */ + elf->state.ELFW(elf,LIBELFBITS).ehdr->e_phnum = 0; + /* Also set the size. */ + elf->state.ELFW(elf,LIBELFBITS).ehdr->e_phentsize = + sizeof (ElfW2(LIBELFBITS,Phdr)); + + elf->state.ELFW(elf,LIBELFBITS).phdr_flags |= ELF_F_DIRTY; + elf->flags |= ELF_F_DIRTY; + __libelf_seterrno (ELF_E_NOERROR); + } + + result = NULL; + } + else if (elf->state.ELFW(elf,LIBELFBITS).ehdr->e_phnum != count + || elf->state.ELFW(elf,LIBELFBITS).phdr == NULL) + { + /* Allocate a new program header with the appropriate number of + elements. */ + result = (ElfW2(LIBELFBITS,Phdr) *) + realloc (elf->state.ELFW(elf,LIBELFBITS).phdr, + count * sizeof (ElfW2(LIBELFBITS,Phdr))); + if (result == NULL) + __libelf_seterrno (ELF_E_NOMEM); + else + { + /* Now set the result. */ + elf->state.ELFW(elf,LIBELFBITS).phdr = result; + /* Clear the whole memory. */ + memset (result, '\0', count * sizeof (ElfW2(LIBELFBITS,Phdr))); + /* Set the `e_phnum' member to the new value. */ + elf->state.ELFW(elf,LIBELFBITS).ehdr->e_phnum = count; + /* Also set the size. */ + elf->state.ELFW(elf,LIBELFBITS).ehdr->e_phentsize = + elf_typesize (LIBELFBITS, ELF_T_PHDR, 1); + /* Remember we allocated the array and mark the structure is + modified. */ + elf->state.ELFW(elf,LIBELFBITS).phdr_flags |= + ELF_F_DIRTY | ELF_F_MALLOCED; + /* We have to rewrite the entire file if the size of the + program header is changed. */ + elf->flags |= ELF_F_DIRTY; + } + } + else + { + /* We have the same number of entries. Just clear the array. */ + assert (elf->state.ELFW(elf,LIBELFBITS).ehdr->e_phentsize + == elf_typesize (LIBELFBITS, ELF_T_PHDR, 1)); + + /* Mark the structure as modified. */ + elf->state.ELFW(elf,LIBELFBITS).phdr_flags |= ELF_F_DIRTY; + + result = elf->state.ELFW(elf,LIBELFBITS).phdr; + } + + out: + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elfw2(LIBELFBITS,newphdr)) diff --git a/libelf/elf32_updatefile.c b/libelf/elf32_updatefile.c new file mode 100644 index 0000000..14893de --- /dev/null +++ b/libelf/elf32_updatefile.c @@ -0,0 +1,610 @@ +/* Write changed data structures. + Copyright (C) 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include + +#include "libelfP.h" + + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +static int +compare_sections (const void *a, const void *b) +{ + const Elf_Scn **scna = (const Elf_Scn **) a; + const Elf_Scn **scnb = (const Elf_Scn **) b; + + if ((*scna)->shdr.ELFW(e,LIBELFBITS)->sh_offset + < (*scnb)->shdr.ELFW(e,LIBELFBITS)->sh_offset) + return -1; + + if ((*scna)->shdr.ELFW(e,LIBELFBITS)->sh_offset + > (*scnb)->shdr.ELFW(e,LIBELFBITS)->sh_offset) + return 1; + + if ((*scna)->index < (*scnb)->index) + return -1; + + if ((*scna)->index > (*scnb)->index) + return 1; + + return 0; +} + + +/* Insert the sections in the list into the provided array and sort + them according to their start offsets. For sections with equal + start offsets the section index is used. */ +static void +sort_sections (Elf_Scn **scns, Elf_ScnList *list) +{ + Elf_Scn **scnp = scns; + do + for (size_t cnt = 0; cnt < list->cnt; ++cnt) + *scnp++ = &list->data[cnt]; + while ((list = list->next) != NULL); + + qsort (scns, scnp - scns, sizeof (*scns), compare_sections); +} + + +int +internal_function_def +__elfw2(LIBELFBITS,updatemmap) (Elf *elf, int change_bo, size_t shnum) +{ + ElfW2(LIBELFBITS,Ehdr) *ehdr; + xfct_t fctp; + char *last_position; + + /* We need the ELF header several times. */ + ehdr = elf->state.ELFW(elf,LIBELFBITS).ehdr; + + /* Write out the ELF header. */ + if ((elf->state.ELFW(elf,LIBELFBITS).ehdr_flags | elf->flags) & ELF_F_DIRTY) + { + /* If the type sizes should be different at some time we have to + rewrite this code. */ + assert (sizeof (ElfW2(LIBELFBITS,Ehdr)) + == elf_typesize (LIBELFBITS, ELF_T_EHDR, 1)); + + if (unlikely (change_bo)) + { + /* Today there is only one version of the ELF header. */ +#if EV_NUM != 2 + fctp = __elf_xfctstom[__libelf_version - 1][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_EHDR]; +#else +# undef fctp +# define fctp __elf_xfctstom[0][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_EHDR] +#endif + + /* Do the real work. */ + (*fctp) ((char *) elf->map_address + elf->start_offset, ehdr, + sizeof (ElfW2(LIBELFBITS,Ehdr)), 1); + } + else + memcpy (elf->map_address + elf->start_offset, ehdr, + sizeof (ElfW2(LIBELFBITS,Ehdr))); + + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags &= ~ELF_F_DIRTY; + } + + /* Write out the program header table. */ + if (elf->state.ELFW(elf,LIBELFBITS).phdr != NULL + && ((elf->state.ELFW(elf,LIBELFBITS).phdr_flags | elf->flags) + & ELF_F_DIRTY)) + { + /* If the type sizes should be different at some time we have to + rewrite this code. */ + assert (sizeof (ElfW2(LIBELFBITS,Phdr)) + == elf_typesize (LIBELFBITS, ELF_T_PHDR, 1)); + + /* Maybe the user wants a gap between the ELF header and the program + header. */ + if (ehdr->e_phoff > ehdr->e_ehsize) + memset (elf->map_address + elf->start_offset + ehdr->e_ehsize, + __libelf_fill_byte, ehdr->e_phoff - ehdr->e_ehsize); + + if (unlikely (change_bo)) + { + /* Today there is only one version of the ELF header. */ +#if EV_NUM != 2 + fctp = __elf_xfctstom[__libelf_version - 1][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_PHDR]; +#else +# undef fctp +# define fctp __elf_xfctstom[0][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_PHDR] +#endif + + /* Do the real work. */ + (*fctp) (elf->map_address + elf->start_offset + ehdr->e_phoff, + elf->state.ELFW(elf,LIBELFBITS).phdr, + sizeof (ElfW2(LIBELFBITS,Phdr)) * ehdr->e_phnum, 1); + } + else + memcpy (elf->map_address + elf->start_offset + ehdr->e_phoff, + elf->state.ELFW(elf,LIBELFBITS).phdr, + sizeof (ElfW2(LIBELFBITS,Phdr)) * ehdr->e_phnum); + + elf->state.ELFW(elf,LIBELFBITS).phdr_flags &= ~ELF_F_DIRTY; + } + + /* From now on we have to keep track of the last position to eventually + fill the gaps with the prescribed fill byte. */ + last_position = ((char *) elf->map_address + elf->start_offset + + MAX (elf_typesize (LIBELFBITS, ELF_T_EHDR, 1), + ehdr->e_phoff) + + elf_typesize (LIBELFBITS, ELF_T_PHDR, ehdr->e_phnum)); + + /* Write all the sections. Well, only those which are modified. */ + if (shnum > 0) + { + ElfW2(LIBELFBITS,Shdr) *shdr_dest; + Elf_ScnList *list = &elf->state.ELFW(elf,LIBELFBITS).scns; + Elf_Scn **scns = (Elf_Scn **) alloca (shnum * sizeof (Elf_Scn *)); + char *shdr_start = ((char *) elf->map_address + elf->start_offset + + ehdr->e_shoff); + char *shdr_end = shdr_start + ehdr->e_shnum * ehdr->e_shentsize; + +#if EV_NUM != 2 + xfct_t shdr_fctp = __elf_xfctstom[__libelf_version - 1][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_SHDR]; +#else +# undef shdr_fctp +# define shdr_fctp __elf_xfctstom[0][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_SHDR] +#endif + shdr_dest = (ElfW2(LIBELFBITS,Shdr) *) + ((char *) elf->map_address + elf->start_offset + ehdr->e_shoff); + + /* Get all sections into the array and sort them. */ + sort_sections (scns, list); + + /* Iterate over all the section in the order in which they + appear in the output file. */ + for (size_t cnt = 0; cnt < shnum; ++cnt) + { + Elf_Scn *scn = scns[cnt]; + ElfW2(LIBELFBITS,Shdr) *shdr; + char *scn_start; + Elf_Data_List *dl; + + shdr = scn->shdr.ELFW(e,LIBELFBITS); + + scn_start = ((char *) elf->map_address + + elf->start_offset + shdr->sh_offset); + dl = &scn->data_list; + + if (shdr->sh_type != SHT_NOBITS && scn->data_list_rear != NULL) + do + { + if ((scn->flags | dl->flags | elf->flags) & ELF_F_DIRTY) + { + if (scn_start + dl->data.d.d_off != last_position) + { + if (scn_start + dl->data.d.d_off > last_position) + { + /* This code assumes that the data blocks for + a section are ordered by offset. */ + size_t written = 0; + + if (last_position < shdr_start) + { + written = MIN (scn_start + dl->data.d.d_off + - last_position, + shdr_start - last_position); + + memset (last_position, __libelf_fill_byte, + written); + } + + if (last_position + written + != scn_start + dl->data.d.d_off + && shdr_end < scn_start + dl->data.d.d_off) + memset (shdr_end, __libelf_fill_byte, + scn_start + dl->data.d.d_off - shdr_end); + + last_position = scn_start + dl->data.d.d_off; + } + } + + if (unlikely (change_bo)) + { +#if EV_NUM != 2 + fctp = __elf_xfctstom[__libelf_version - 1][dl->data.d.d_version - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][dl->data.d.d_type]; +#else +# undef fctp + fctp = __elf_xfctstom[0][0][ELFW(ELFCLASS, LIBELFBITS) - 1][dl->data.d.d_type]; +#endif + + /* Do the real work. */ + (*fctp) (last_position, dl->data.d.d_buf, + dl->data.d.d_size, 1); + + last_position += dl->data.d.d_size; + } + else + last_position = mempcpy (last_position, + dl->data.d.d_buf, + dl->data.d.d_size); + } + else + last_position += dl->data.d.d_size; + + dl->flags &= ~ELF_F_DIRTY; + + dl = dl->next; + } + while (dl != NULL); + else if (shdr->sh_type != SHT_NOBITS && scn->index != 0) + /* We have to trust the existing section header information. */ + last_position += shdr->sh_size; + + /* Write the section header table entry if necessary. */ + if ((scn->shdr_flags | elf->flags) & ELF_F_DIRTY) + { + if (unlikely (change_bo)) + (*shdr_fctp) (&shdr_dest[scn->index], + scn->shdr.ELFW(e,LIBELFBITS), + sizeof (ElfW2(LIBELFBITS,Shdr)), 1); + else + memcpy (&shdr_dest[scn->index], + scn->shdr.ELFW(e,LIBELFBITS), + sizeof (ElfW2(LIBELFBITS,Shdr))); + + scn->shdr_flags &= ~ELF_F_DIRTY; + } + + scn->flags &= ~ELF_F_DIRTY; + } + + /* Fill the gap between last section and section header table if + necessary. */ + if ((elf->flags & ELF_F_DIRTY) + && last_position < ((char *) elf->map_address + elf->start_offset + + ehdr->e_shoff)) + memset (last_position, __libelf_fill_byte, + (char *) elf->map_address + elf->start_offset + ehdr->e_shoff + - last_position); + } + + /* That was the last part. Clear the overall flag. */ + elf->flags &= ~ELF_F_DIRTY; + + return 0; +} + + +/* Size of the buffer we use to generate the blocks of fill bytes. */ +#define FILLBUFSIZE 4096 + +/* If we have to convert the section buffer contents we have to use + temporary buffer. Only buffers up to MAX_TMPBUF bytes are allocated + on the stack. */ +#define MAX_TMPBUF 32768 + + +/* Helper function to write out fill bytes. */ +static int +fill (int fd, off_t pos, size_t len, char *fillbuf, size_t *filledp) +{ + size_t filled = *filledp; + size_t fill_len = MIN (len, FILLBUFSIZE); + + if (unlikely (fill_len > filled) && filled < FILLBUFSIZE) + { + /* Initialize a few more bytes. */ + memset (fillbuf + filled, __libelf_fill_byte, fill_len - filled); + *filledp = filled = fill_len; + } + + do + { + /* This many bytes we want to write in this round. */ + size_t n = MIN (filled, len); + + if (unlikely ((size_t) pwrite (fd, fillbuf, n, pos) != n)) + { + __libelf_seterrno (ELF_E_WRITE_ERROR); + return 1; + } + + pos += n; + len -= n; + } + while (len > 0); + + return 0; +} + + +int +internal_function_def +__elfw2(LIBELFBITS,updatefile) (Elf *elf, int change_bo, size_t shnum) +{ + char fillbuf[FILLBUFSIZE]; + size_t filled = 0; + xfct_t fctp; + + /* We need the ELF header several times. */ + ElfW2(LIBELFBITS,Ehdr) *ehdr = elf->state.ELFW(elf,LIBELFBITS).ehdr; + + /* Write out the ELF header. */ + if ((elf->state.ELFW(elf,LIBELFBITS).ehdr_flags | elf->flags) & ELF_F_DIRTY) + { + ElfW2(LIBELFBITS,Ehdr) tmp_ehdr; + ElfW2(LIBELFBITS,Ehdr) *out_ehdr = ehdr; + + /* If the type sizes should be different at some time we have to + rewrite this code. */ + assert (sizeof (ElfW2(LIBELFBITS,Ehdr)) + == elf_typesize (LIBELFBITS, ELF_T_EHDR, 1)); + + if (unlikely (change_bo)) + { + /* Today there is only one version of the ELF header. */ +#if EV_NUM != 2 + fctp = __elf_xfctstom[__libelf_version - 1][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_EHDR]; +#else +# undef fctp +# define fctp __elf_xfctstom[0][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_EHDR] +#endif + + /* Write the converted ELF header in a temporary buffer. */ + (*fctp) (&tmp_ehdr, ehdr, sizeof (ElfW2(LIBELFBITS,Ehdr)), 1); + + /* This is the buffer we want to write. */ + out_ehdr = &tmp_ehdr; + } + + /* Write out the ELF header. */ + if (unlikely (pwrite (elf->fildes, out_ehdr, + sizeof (ElfW2(LIBELFBITS,Ehdr)), 0) + != sizeof (ElfW2(LIBELFBITS,Ehdr)))) + { + __libelf_seterrno (ELF_E_WRITE_ERROR); + return 1; + } + + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags &= ~ELF_F_DIRTY; + } + + /* If the type sizes should be different at some time we have to + rewrite this code. */ + assert (sizeof (ElfW2(LIBELFBITS,Phdr)) + == elf_typesize (LIBELFBITS, ELF_T_PHDR, 1)); + + /* Write out the program header table. */ + if (elf->state.ELFW(elf,LIBELFBITS).phdr != NULL + && ((elf->state.ELFW(elf,LIBELFBITS).phdr_flags | elf->flags) + & ELF_F_DIRTY)) + { + ElfW2(LIBELFBITS,Phdr) *tmp_phdr = NULL; + ElfW2(LIBELFBITS,Phdr) *out_phdr = elf->state.ELFW(elf,LIBELFBITS).phdr; + + /* Maybe the user wants a gap between the ELF header and the program + header. */ + if (ehdr->e_phoff > ehdr->e_ehsize + && unlikely (fill (elf->fildes, ehdr->e_ehsize, + ehdr->e_phoff - ehdr->e_ehsize, fillbuf, &filled) + != 0)) + return 1; + + if (unlikely (change_bo)) + { + /* Today there is only one version of the ELF header. */ +#if EV_NUM != 2 + fctp = __elf_xfctstom[__libelf_version - 1][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_PHDR]; +#else +# undef fctp +# define fctp __elf_xfctstom[0][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_PHDR] +#endif + + /* Allocate sufficient memory. */ + tmp_phdr = (ElfW2(LIBELFBITS,Phdr) *) + malloc (sizeof (ElfW2(LIBELFBITS,Phdr)) * ehdr->e_phnum); + if (tmp_phdr == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + return 1; + } + + /* Write the converted ELF header in a temporary buffer. */ + (*fctp) (tmp_phdr, elf->state.ELFW(elf,LIBELFBITS).phdr, + sizeof (ElfW2(LIBELFBITS,Phdr)) * ehdr->e_phnum, 1); + + /* This is the buffer we want to write. */ + out_phdr = tmp_phdr; + } + + /* Write out the ELF header. */ + if (unlikely ((size_t) pwrite (elf->fildes, out_phdr, + sizeof (ElfW2(LIBELFBITS,Phdr)) + * ehdr->e_phnum, ehdr->e_phoff) + != sizeof (ElfW2(LIBELFBITS,Phdr)) * ehdr->e_phnum)) + { + __libelf_seterrno (ELF_E_WRITE_ERROR); + return 1; + } + + /* This is a no-op we we have not allocated any memory. */ + free (tmp_phdr); + + elf->state.ELFW(elf,LIBELFBITS).phdr_flags &= ~ELF_F_DIRTY; + } + + /* From now on we have to keep track of the last position to eventually + fill the gaps with the prescribed fill byte. */ + off_t last_offset; + if (elf->state.ELFW(elf,LIBELFBITS).phdr == NULL) + last_offset = elf_typesize (LIBELFBITS, ELF_T_EHDR, 1); + else + last_offset = (ehdr->e_phoff + + sizeof (ElfW2(LIBELFBITS,Phdr)) * ehdr->e_phnum); + + /* Write all the sections. Well, only those which are modified. */ + if (shnum > 0) + { + off_t shdr_offset = elf->start_offset + ehdr->e_shoff; +#if EV_NUM != 2 + xfct_t shdr_fctp = __elf_xfctstom[__libelf_version - 1][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_SHDR]; +#else +# undef shdr_fctp +# define shdr_fctp __elf_xfctstom[0][EV_CURRENT - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][ELF_T_SHDR] +#endif + + ElfW2(LIBELFBITS,Shdr) *shdr_data; + if (change_bo || elf->state.ELFW(elf,LIBELFBITS).shdr == NULL) + shdr_data = (ElfW2(LIBELFBITS,Shdr) *) + alloca (shnum * sizeof (ElfW2(LIBELFBITS,Shdr))); + else + shdr_data = elf->state.ELFW(elf,LIBELFBITS).shdr; + int shdr_flags = elf->flags; + + /* Get all sections into the array and sort them. */ + Elf_ScnList *list = &elf->state.ELFW(elf,LIBELFBITS).scns; + Elf_Scn **scns = (Elf_Scn **) alloca (shnum * sizeof (Elf_Scn *)); + sort_sections (scns, list); + + for (size_t cnt = 0; cnt < shnum; ++cnt) + { + Elf_Scn *scn = scns[cnt]; + + ElfW2(LIBELFBITS,Shdr) *shdr = scn->shdr.ELFW(e,LIBELFBITS); + + off_t scn_start = elf->start_offset + shdr->sh_offset; + Elf_Data_List *dl = &scn->data_list; + + if (shdr->sh_type != SHT_NOBITS && scn->data_list_rear != NULL + && scn->index != 0) + do + { + if ((scn->flags | dl->flags | elf->flags) & ELF_F_DIRTY) + { + char tmpbuf[MAX_TMPBUF]; + void *buf = dl->data.d.d_buf; + + if (scn_start + dl->data.d.d_off != last_offset) + { + assert (last_offset < scn_start + dl->data.d.d_off); + + if (unlikely (fill (elf->fildes, last_offset, + (scn_start + dl->data.d.d_off) + - last_offset, fillbuf, + &filled) != 0)) + return 1; + + last_offset = scn_start + dl->data.d.d_off; + } + + if (unlikely (change_bo)) + { +#if EV_NUM != 2 + fctp = __elf_xfctstom[__libelf_version - 1][dl->data.d.d_version - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][dl->data.d.d_type]; +#else +# undef fctp + fctp = __elf_xfctstom[0][0][ELFW(ELFCLASS, LIBELFBITS) - 1][dl->data.d.d_type]; +#endif + + buf = tmpbuf; + if (dl->data.d.d_size > MAX_TMPBUF) + { + buf = malloc (dl->data.d.d_size); + if (buf == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + return 1; + } + } + + /* Do the real work. */ + (*fctp) (buf, dl->data.d.d_buf, dl->data.d.d_size, 1); + } + + if (unlikely ((size_t) pwrite (elf->fildes, buf, + dl->data.d.d_size, + last_offset) + != dl->data.d.d_size)) + { + if (buf != dl->data.d.d_buf && buf != tmpbuf) + free (buf); + + __libelf_seterrno (ELF_E_WRITE_ERROR); + return 1; + } + + if (buf != dl->data.d.d_buf && buf != tmpbuf) + free (buf); + } + + last_offset += dl->data.d.d_size; + + dl->flags &= ~ELF_F_DIRTY; + + dl = dl->next; + } + while (dl != NULL); + else if (shdr->sh_type != SHT_NOBITS && scn->index != 0) + last_offset = scn_start + shdr->sh_size; + + /* Collect the section header table information. */ + if (unlikely (change_bo)) + (*shdr_fctp) (&shdr_data[scn->index], + scn->shdr.ELFW(e,LIBELFBITS), + sizeof (ElfW2(LIBELFBITS,Shdr)), 1); + else if (elf->state.ELFW(elf,LIBELFBITS).shdr == NULL) + memcpy (&shdr_data[scn->index], scn->shdr.ELFW(e,LIBELFBITS), + sizeof (ElfW2(LIBELFBITS,Shdr))); + + shdr_flags |= scn->shdr_flags; + scn->shdr_flags &= ~ELF_F_DIRTY; + } + + /* Fill the gap between last section and section header table if + necessary. */ + if ((elf->flags & ELF_F_DIRTY) && last_offset < shdr_offset + && unlikely (fill (elf->fildes, last_offset, + shdr_offset - last_offset, + fillbuf, &filled) != 0)) + return 1; + + /* Write out the section header table. */ + if (shdr_flags & ELF_F_DIRTY + && unlikely ((size_t) pwrite (elf->fildes, shdr_data, + sizeof (ElfW2(LIBELFBITS,Shdr)) + * shnum, shdr_offset) + != sizeof (ElfW2(LIBELFBITS,Shdr)) * shnum)) + { + __libelf_seterrno (ELF_E_WRITE_ERROR); + return 1; + } + } + + /* That was the last part. Clear the overall flag. */ + elf->flags &= ~ELF_F_DIRTY; + + return 0; +} diff --git a/libelf/elf32_updatenull.c b/libelf/elf32_updatenull.c new file mode 100644 index 0000000..ed7242b --- /dev/null +++ b/libelf/elf32_updatenull.c @@ -0,0 +1,384 @@ +/* Update data structures for changes. + Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include + +#include "libelfP.h" +#include "elf-knowledge.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + + +static int +ELFW(default_ehdr,LIBELFBITS) (Elf *elf, ElfW2(LIBELFBITS,Ehdr) *ehdr, + size_t shnum, int *change_bop) +{ + /* Always write the magic bytes. */ + if (memcmp (&ehdr->e_ident[EI_MAG0], ELFMAG, SELFMAG) != 0) + { + memcpy (&ehdr->e_ident[EI_MAG0], ELFMAG, SELFMAG); + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags |= ELF_F_DIRTY; + } + + /* Always set the file class. */ + update_if_changed (ehdr->e_ident[EI_CLASS], ELFW(ELFCLASS,LIBELFBITS), + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags); + + /* Set the data encoding if necessary. */ + if (unlikely (ehdr->e_ident[EI_DATA] == ELFDATANONE)) + { + ehdr->e_ident[EI_DATA] = + BYTE_ORDER == BIG_ENDIAN ? ELFDATA2MSB : ELFDATA2LSB; + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags |= ELF_F_DIRTY; + } + else if (unlikely (ehdr->e_ident[EI_DATA] >= ELFDATANUM)) + { + __libelf_seterrno (ELF_E_DATA_ENCODING); + return 1; + } + else + *change_bop = ((BYTE_ORDER == LITTLE_ENDIAN + && ehdr->e_ident[EI_DATA] != ELFDATA2LSB) + || (BYTE_ORDER == BIG_ENDIAN + && ehdr->e_ident[EI_DATA] != ELFDATA2MSB)); + + /* Unconditionally overwrite the ELF version. */ + update_if_changed (ehdr->e_ident[EI_VERSION], EV_CURRENT, + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags); + + if (unlikely (ehdr->e_version == EV_NONE) + || unlikely (ehdr->e_version >= EV_NUM)) + { + __libelf_seterrno (ELF_E_UNKNOWN_VERSION); + return 1; + } + + if (unlikely (shnum >= SHN_LORESERVE)) + { + update_if_changed (ehdr->e_shnum, 0, + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags); + } + else + update_if_changed (ehdr->e_shnum, shnum, + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags); + + if (unlikely (ehdr->e_ehsize != elf_typesize (LIBELFBITS, ELF_T_EHDR, 1))) + { + ehdr->e_ehsize = elf_typesize (LIBELFBITS, ELF_T_EHDR, 1); + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags |= ELF_F_DIRTY; + } + + return 0; +} + + +off_t +internal_function_def +__elfw2(LIBELFBITS,updatenull) (Elf *elf, int *change_bop, size_t shnum) +{ + ElfW2(LIBELFBITS,Ehdr) *ehdr = INTUSE(elfw2(LIBELFBITS,getehdr)) (elf); + int changed = 0; + int ehdr_flags = 0; + + /* Set the default values. */ + if (ELFW(default_ehdr,LIBELFBITS) (elf, ehdr, shnum, change_bop) != 0) + return -1; + + /* At least the ELF header is there. */ + off_t size = elf_typesize (LIBELFBITS, ELF_T_EHDR, 1); + + /* Set the program header position. */ + if (elf->state.ELFW(elf,LIBELFBITS).phdr == NULL + && (ehdr->e_type == ET_EXEC || ehdr->e_type == ET_DYN)) + (void) INTUSE(elfw2(LIBELFBITS,getphdr)) (elf); + if (elf->state.ELFW(elf,LIBELFBITS).phdr != NULL) + { + /* Only executables or shared objects have a program header. */ + if (ehdr->e_type != ET_EXEC && unlikely (ehdr->e_type != ET_DYN)) + { + __libelf_seterrno (ELF_E_INVALID_PHDR); + return -1; + } + + if (elf->flags & ELF_F_LAYOUT) + { + /* The user is supposed to fill out e_phoff. Use it and + e_phnum to determine the maximum extend. */ + size = MAX ((size_t) size, + ehdr->e_phoff + + elf_typesize (LIBELFBITS, ELF_T_PHDR, ehdr->e_phnum)); + } + else + { + update_if_changed (ehdr->e_phoff, + elf_typesize (LIBELFBITS, ELF_T_EHDR, 1), + ehdr_flags); + + /* We need no alignment here. */ + size += elf_typesize (LIBELFBITS, ELF_T_PHDR, ehdr->e_phnum); + } + } + + if (shnum > 0) + { + Elf_ScnList *list; + bool first = true; + + assert (elf->state.ELFW(elf,LIBELFBITS).scns.cnt > 0); + + if (shnum >= SHN_LORESERVE) + { + /* We have to fill in the number of sections in the header + of the zeroth section. */ + Elf_Scn *scn0 = &elf->state.ELFW(elf,LIBELFBITS).scns.data[0]; + + update_if_changed (scn0->shdr.ELFW(e,LIBELFBITS)->sh_size, + shnum, scn0->shdr_flags); + } + + /* Go over all sections and find out how large they are. */ + list = &elf->state.ELFW(elf,LIBELFBITS).scns; + + /* Load the section headers if necessary. This loads the + headers for all sections. */ + if (list->data[1].shdr.ELFW(e,LIBELFBITS) == NULL) + (void) INTUSE(elfw2(LIBELFBITS,getshdr)) (&list->data[1]); + + do + { + for (size_t cnt = first == true; cnt < list->cnt; ++cnt) + { + Elf_Scn *scn = &list->data[cnt]; + ElfW2(LIBELFBITS,Shdr) *shdr = scn->shdr.ELFW(e,LIBELFBITS); + off_t offset = 0; + + assert (shdr != NULL); + ElfW2(LIBELFBITS,Word) sh_entsize = shdr->sh_entsize; + ElfW2(LIBELFBITS,Word) sh_align = shdr->sh_addralign ?: 1; + + /* Set the sh_entsize value if we can reliably detect it. */ + switch (shdr->sh_type) + { + case SHT_SYMTAB: + sh_entsize = elf_typesize (LIBELFBITS, ELF_T_SYM, 1); + break; + case SHT_RELA: + sh_entsize = elf_typesize (LIBELFBITS, ELF_T_RELA, 1); + break; + case SHT_GROUP: + /* Only relocatable files can contain section groups. */ + if (ehdr->e_type != ET_REL) + { + __libelf_seterrno (ELF_E_GROUP_NOT_REL); + return -1; + } + /* FALLTHROUGH */ + case SHT_SYMTAB_SHNDX: + sh_entsize = elf_typesize (32, ELF_T_WORD, 1); + break; + case SHT_HASH: + sh_entsize = SH_ENTSIZE_HASH (ehdr); + break; + case SHT_DYNAMIC: + sh_entsize = elf_typesize (LIBELFBITS, ELF_T_DYN, 1); + break; + case SHT_REL: + sh_entsize = elf_typesize (LIBELFBITS, ELF_T_REL, 1); + break; + case SHT_DYNSYM: + sh_entsize = elf_typesize (LIBELFBITS, ELF_T_SYM, 1); + break; + case SHT_SUNW_move: + sh_entsize = elf_typesize (LIBELFBITS, ELF_T_MOVE, 1); + break; + case SHT_SUNW_syminfo: + sh_entsize = elf_typesize (LIBELFBITS, ELF_T_SYMINFO, 1); + break; + default: + break; + } + + /* If the section header contained the wrong entry size + correct it and mark the header as modified. */ + update_if_changed (shdr->sh_entsize, sh_entsize, + scn->shdr_flags); + + if (scn->data_read == 0 && __libelf_set_rawdata (scn) != 0) + /* Something went wrong. The error value is already set. */ + return -1; + + /* Iterate over all data blocks. */ + if (list->data[cnt].data_list_rear != NULL) + { + Elf_Data_List *dl = &scn->data_list; + + while (dl != NULL) + { + Elf_Data *data = &dl->data.d; + if (dl == &scn->data_list && data->d_buf == NULL + && scn->rawdata.d.d_buf != NULL) + data = &scn->rawdata.d; + + if (unlikely (data->d_version == EV_NONE) + || unlikely (data->d_version >= EV_NUM)) + { + __libelf_seterrno (ELF_E_UNKNOWN_VERSION); + return -1; + } + + if (unlikely (! powerof2 (data->d_align))) + { + __libelf_seterrno (ELF_E_INVALID_ALIGN); + return -1; + } + + sh_align = MAX (sh_align, data->d_align); + + if (elf->flags & ELF_F_LAYOUT) + { + /* The user specified the offset and the size. + All we have to do is check whether this block + fits in the size specified for the section. */ + if (unlikely ((GElf_Word) (data->d_off + + data->d_size) + > shdr->sh_size)) + { + __libelf_seterrno (ELF_E_SECTION_TOO_SMALL); + return -1; + } + } + else + { + /* Determine the padding. */ + offset = ((offset + data->d_align - 1) + & ~(data->d_align - 1)); + + update_if_changed (data->d_off, offset, changed); + + offset += data->d_size; + } + + /* Next data block. */ + dl = dl->next; + } + } + else + /* Get the size of the section from the raw data. If + none is available the value is zero. */ + offset += scn->rawdata.d.d_size; + + if (elf->flags & ELF_F_LAYOUT) + { + size = MAX ((GElf_Word) size, + shdr->sh_offset + + (shdr->sh_type != SHT_NOBITS + ? shdr->sh_size : 0)); + + /* The alignment must be a power of two. This is a + requirement from the ELF specification. Additionally + we test for the alignment of the section being large + enough for the largest alignment required by a data + block. */ + if (unlikely (! powerof2 (shdr->sh_addralign)) + || unlikely (shdr->sh_addralign < sh_align)) + { + __libelf_seterrno (ELF_E_INVALID_ALIGN); + return -1; + } + } + else + { + /* How much alignment do we need for this section. */ + update_if_changed (shdr->sh_addralign, sh_align, + scn->shdr_flags); + + size = (size + sh_align - 1) & ~(sh_align - 1); + update_if_changed (shdr->sh_offset, (GElf_Word) size, + changed); + + /* See whether the section size is correct. */ + update_if_changed (shdr->sh_size, (GElf_Word) offset, + changed); + + if (shdr->sh_type != SHT_NOBITS) + size += offset; + + scn->flags |= changed; + } + + /* Check that the section size is actually a multiple of + the entry size. */ + if (shdr->sh_entsize != 0 + && unlikely (shdr->sh_size % shdr->sh_entsize != 0) + && (elf->flags & ELF_F_PERMISSIVE) == 0) + { + __libelf_seterrno (ELF_E_INVALID_SHENTSIZE); + return -1; + } + } + + assert (list->next == NULL || list->cnt == list->max); + + first = false; + } + while ((list = list->next) != NULL); + + /* Store section information. */ + if (elf->flags & ELF_F_LAYOUT) + { + /* The user is supposed to fill out e_phoff. Use it and + e_phnum to determine the maximum extend. */ + size = MAX ((GElf_Word) size, + (ehdr->e_shoff + + (elf_typesize (LIBELFBITS, ELF_T_SHDR, shnum)))); + } + else + { + /* Align for section header table. + + Yes, we use `sizeof' and not `__alignof__' since we do not + want to be surprised by architectures with less strict + alignment rules. */ +#define SHDR_ALIGN sizeof (ElfW2(LIBELFBITS,Off)) + size = (size + SHDR_ALIGN - 1) & ~(SHDR_ALIGN - 1); + + update_if_changed (ehdr->e_shoff, (GElf_Word) size, elf->flags); + update_if_changed (ehdr->e_shentsize, + elf_typesize (LIBELFBITS, ELF_T_SHDR, 1), + ehdr_flags); + + /* Account for the section header size. */ + size += elf_typesize (LIBELFBITS, ELF_T_SHDR, shnum); + } + } + + elf->state.ELFW(elf,LIBELFBITS).ehdr_flags |= ehdr_flags; + + return size; +} diff --git a/libelf/elf32_xlatetof.c b/libelf/elf32_xlatetof.c new file mode 100644 index 0000000..46b6588 --- /dev/null +++ b/libelf/elf32_xlatetof.c @@ -0,0 +1,111 @@ +/* Convert from memory to file representation. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +Elf_Data * +elfw2(LIBELFBITS, xlatetof) (dest, src, encode) + Elf_Data *dest; + const Elf_Data *src; + unsigned int encode; +{ + /* First test whether the input data is really suitable for this + type. This means, whether there is an integer number of records. + Note that for this implementation the memory and file size of the + data types are identical. */ +#if EV_NUM != 2 + size_t recsize = __libelf_type_sizes[src->d_version - 1][ELFW(ELFCLASS,LIBELFBITS) - 1][src->d_type]; +#else + size_t recsize = __libelf_type_sizes[0][ELFW(ELFCLASS,LIBELFBITS) - 1][src->d_type]; +#endif + + if (src->d_size % recsize != 0) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + return NULL; + } + + /* Next see whether the converted data fits in the output buffer. */ + if (src->d_size > dest->d_size) + { + __libelf_seterrno (ELF_E_DEST_SIZE); + return NULL; + } + + /* Test the encode parameter. */ + if (encode != ELFDATA2LSB && encode != ELFDATA2MSB) + { + __libelf_seterrno (ELF_E_INVALID_ENCODING); + return NULL; + } + + /* Determine the translation function to use. + + At this point we make an assumption which is valid for all + existing implementations so far: the memory and file sizes are + the same. This has very important consequences: + a) The requirement that the source and destination buffer can + overlap can easily be fulfilled. + b) We need only one function to convert from and memory to file + and vice versa since the function only has to copy and/or + change the byte order. + */ + if ((__BYTE_ORDER == __LITTLE_ENDIAN && encode == ELFDATA2LSB) + || (__BYTE_ORDER == __BIG_ENDIAN && encode == ELFDATA2MSB)) + { + /* We simply have to copy since the byte order is the same. */ + if (src->d_buf != dest->d_buf) + memmove (dest->d_buf, src->d_buf, src->d_size); + } + else + { + xfct_t fctp; + + /* Get a pointer to the transformation functions. The `#ifdef' is + a small optimization since we don't anticipate another ELF + version and so would waste "precious" code. */ +#if EV_NUM != 2 + fctp = __elf_xfctstom[dest->d_version - 1][src->d_version - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][src->d_type]; +#else + fctp = __elf_xfctstom[0][0][ELFW(ELFCLASS, LIBELFBITS) - 1][src->d_type]; +#endif + + /* Do the real work. */ + (*fctp) (dest->d_buf, src->d_buf, src->d_size, 1); + } + + /* Now set the real destination type and length since the operation was + successful. */ + dest->d_type = src->d_type; + dest->d_size = src->d_size; + + return dest; +} +INTDEF(elfw2(LIBELFBITS, xlatetof)) diff --git a/libelf/elf32_xlatetom.c b/libelf/elf32_xlatetom.c new file mode 100644 index 0000000..1b8c65c --- /dev/null +++ b/libelf/elf32_xlatetom.c @@ -0,0 +1,112 @@ +/* Convert from file to memory representation. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +Elf_Data * +elfw2(LIBELFBITS, xlatetom) (dest, src, encode) + Elf_Data *dest; + const Elf_Data *src; + unsigned int encode; +{ + /* First test whether the input data is really suitable for this + type. This means, whether there is an integer number of records. + Note that for this implementation the memory and file size of the + data types are identical. */ +#if EV_NUM != 2 + size_t recsize = __libelf_type_sizes[src->d_version - 1][ELFW(ELFCLASS,LIBELFBITS) - 1][src->d_type]; +#else + size_t recsize = __libelf_type_sizes[0][ELFW(ELFCLASS,LIBELFBITS) - 1][src->d_type]; +#endif + + + if (src->d_size % recsize != 0) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + return NULL; + } + + /* Next see whether the converted data fits in the output buffer. */ + if (src->d_size > dest->d_size) + { + __libelf_seterrno (ELF_E_DEST_SIZE); + return NULL; + } + + /* Test the encode parameter. */ + if (encode != ELFDATA2LSB && encode != ELFDATA2MSB) + { + __libelf_seterrno (ELF_E_INVALID_ENCODING); + return NULL; + } + + /* Determine the translation function to use. + + At this point we make an assumption which is valid for all + existing implementations so far: the memory and file sizes are + the same. This has very important consequences: + a) The requirement that the source and destination buffer can + overlap can easily be fulfilled. + b) We need only one function to convert from and memory to file + and vice versa since the function only has to copy and/or + change the byte order. + */ + if ((BYTE_ORDER == LITTLE_ENDIAN && encode == ELFDATA2LSB) + || (BYTE_ORDER == BIG_ENDIAN && encode == ELFDATA2MSB)) + { + /* We simply have to copy since the byte order is the same. */ + if (src->d_buf != dest->d_buf) + memmove (dest->d_buf, src->d_buf, src->d_size); + } + else + { + xfct_t fctp; + + /* Get a pointer to the transformation functions. The `#ifdef' is + a small optimization since we don't anticipate another ELF + version and so would waste "precious" code. */ +#if EV_NUM != 2 + fctp = __elf_xfctstom[src->d_version - 1][dest->d_version - 1][ELFW(ELFCLASS, LIBELFBITS) - 1][src->d_type]; +#else + fctp = __elf_xfctstom[0][0][ELFW(ELFCLASS, LIBELFBITS) - 1][src->d_type]; +#endif + + /* Do the real work. */ + (*fctp) (dest->d_buf, src->d_buf, src->d_size, 0); + } + + /* Now set the real destination type and length since the operation was + successful. */ + dest->d_type = src->d_type; + dest->d_size = src->d_size; + + return dest; +} +INTDEF(elfw2(LIBELFBITS, xlatetom)) diff --git a/libelf/elf64_checksum.c b/libelf/elf64_checksum.c new file mode 100644 index 0000000..bdb9210 --- /dev/null +++ b/libelf/elf64_checksum.c @@ -0,0 +1,19 @@ +/* Compute simple checksum from permanent parts of the ELF file. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_checksum.c" diff --git a/libelf/elf64_fsize.c b/libelf/elf64_fsize.c new file mode 100644 index 0000000..0b1f414 --- /dev/null +++ b/libelf/elf64_fsize.c @@ -0,0 +1,19 @@ +/* Return the size of an object file type. + Copyright (C) 1998, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_fsize.c" diff --git a/libelf/elf64_getehdr.c b/libelf/elf64_getehdr.c new file mode 100644 index 0000000..89a69ff --- /dev/null +++ b/libelf/elf64_getehdr.c @@ -0,0 +1,19 @@ +/* Return program header table. + Copyright (C) 1998, 1999, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_getehdr.c" diff --git a/libelf/elf64_getphdr.c b/libelf/elf64_getphdr.c new file mode 100644 index 0000000..d06d7c1 --- /dev/null +++ b/libelf/elf64_getphdr.c @@ -0,0 +1,19 @@ +/* Return program header table. + Copyright (C) 1998, 1999, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_getphdr.c" diff --git a/libelf/elf64_getshdr.c b/libelf/elf64_getshdr.c new file mode 100644 index 0000000..1a5da57 --- /dev/null +++ b/libelf/elf64_getshdr.c @@ -0,0 +1,19 @@ +/* Return section header. + Copyright (C) 1998, 1999, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_getshdr.c" diff --git a/libelf/elf64_newehdr.c b/libelf/elf64_newehdr.c new file mode 100644 index 0000000..aba6e63 --- /dev/null +++ b/libelf/elf64_newehdr.c @@ -0,0 +1,19 @@ +/* Create new program header table. + Copyright (C) 1999, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_newehdr.c" diff --git a/libelf/elf64_newphdr.c b/libelf/elf64_newphdr.c new file mode 100644 index 0000000..90ff463 --- /dev/null +++ b/libelf/elf64_newphdr.c @@ -0,0 +1,19 @@ +/* Create new program header table. + Copyright (C) 1999, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_newphdr.c" diff --git a/libelf/elf64_updatefile.c b/libelf/elf64_updatefile.c new file mode 100644 index 0000000..6b604f1 --- /dev/null +++ b/libelf/elf64_updatefile.c @@ -0,0 +1,18 @@ +/* Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_updatefile.c" diff --git a/libelf/elf64_updatenull.c b/libelf/elf64_updatenull.c new file mode 100644 index 0000000..ff1f070 --- /dev/null +++ b/libelf/elf64_updatenull.c @@ -0,0 +1,18 @@ +/* Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_updatenull.c" diff --git a/libelf/elf64_xlatetof.c b/libelf/elf64_xlatetof.c new file mode 100644 index 0000000..3440bbc --- /dev/null +++ b/libelf/elf64_xlatetof.c @@ -0,0 +1,19 @@ +/* Convert from memory to file representation. + Copyright (C) 1998, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_xlatetof.c" diff --git a/libelf/elf64_xlatetom.c b/libelf/elf64_xlatetom.c new file mode 100644 index 0000000..773f04e --- /dev/null +++ b/libelf/elf64_xlatetom.c @@ -0,0 +1,19 @@ +/* Convert from file to memory representation. + Copyright (C) 1998, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define LIBELFBITS 64 +#include "elf32_xlatetom.c" diff --git a/libelf/elf_begin.c b/libelf/elf_begin.c new file mode 100644 index 0000000..404cbe8 --- /dev/null +++ b/libelf/elf_begin.c @@ -0,0 +1,1073 @@ +/* Create descriptor for processing file. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "libelfP.h" +#include "common.h" + + +/* Create descriptor for archive in memory. */ +static inline Elf * +file_read_ar (int fildes, void *map_address, off_t offset, size_t maxsize, + Elf_Cmd cmd, Elf *parent) +{ + Elf *elf; + + /* Create a descriptor. */ + elf = allocate_elf (fildes, map_address, offset, maxsize, cmd, parent, + ELF_K_AR, 0); + if (elf != NULL) + { + /* We don't read all the symbol tables in advance. All this will + happen on demand. */ + elf->state.ar.offset = offset + SARMAG; + + elf->state.ar.elf_ar_hdr.ar_rawname = elf->state.ar.raw_name; + } + + return elf; +} + + +static size_t +get_shnum (void *map_address, unsigned char *e_ident, int fildes, off_t offset, + size_t maxsize) +{ + size_t result; + union + { + Elf32_Ehdr *e32; + Elf64_Ehdr *e64; + void *p; + } ehdr; + bool is32 = e_ident[EI_CLASS] == ELFCLASS32; + + /* Make the ELF header available. */ + if (likely (map_address != NULL) && e_ident[EI_DATA] == MY_ELFDATA + && (ALLOW_UNALIGNED + || (((size_t) ((char *) map_address + offset)) + & ((is32 ? __alignof__ (Elf32_Ehdr) : __alignof__ (Elf64_Ehdr)) + - 1)) == 0)) + ehdr.p = (char *) map_address + offset; + else + { + /* We have to read the data from the file. */ + size_t len = is32 ? sizeof (Elf32_Ehdr) : sizeof (Elf64_Ehdr); + + ehdr.p = alloca (len); + /* Fill it. */ + if ((size_t) pread (fildes, ehdr.p, len, offset) != len) + /* Failed reading. */ + return (size_t) -1l; + + if (e_ident[EI_DATA] != MY_ELFDATA) + { + if (is32) + { + CONVERT (ehdr.e32->e_shnum); + CONVERT (ehdr.e32->e_shoff); + } + else + { + CONVERT (ehdr.e64->e_shnum); + CONVERT (ehdr.e64->e_shoff); + } + } + } + + if (is32) + { + /* Get the number of sections from the ELF header. */ + result = ehdr.e32->e_shnum; + + if (unlikely (result == 0) && ehdr.e32->e_shoff != 0) + { + if (offset + ehdr.e32->e_shoff + sizeof (Elf32_Shdr) > maxsize) + /* Cannot read the first section header. */ + return (size_t) -1l; + + if (likely (map_address != NULL) && e_ident[EI_DATA] == MY_ELFDATA + && (ALLOW_UNALIGNED + || (((size_t) ((char *) map_address + offset)) + & (__alignof__ (Elf32_Ehdr) - 1)) == 0)) + /* We can directly access the memory. */ + result = ((Elf32_Shdr *) ((char *) map_address + + ehdr.e32->e_shoff + + offset))->sh_size; + else + { + Elf32_Word size; + + if (pread (fildes, &size, sizeof (Elf32_Word), + offset + ehdr.e32->e_shoff + + offsetof (Elf32_Shdr, sh_size)) + != sizeof (Elf32_Word)) + return (size_t) -1l; + + if (e_ident[EI_DATA] != MY_ELFDATA) + CONVERT (size); + + result = size; + } + } + } + else + { + /* Get the number of sections from the ELF header. */ + result = ehdr.e64->e_shnum; + + if (unlikely (result == 0) && ehdr.e64->e_shoff != 0) + { + if (offset + ehdr.e64->e_shoff + sizeof (Elf64_Shdr) > maxsize) + /* Cannot read the first section header. */ + return (size_t) -1l; + + if (likely (map_address != NULL) && e_ident[EI_DATA] == MY_ELFDATA + && (ALLOW_UNALIGNED + || (((size_t) ((char *) map_address + offset)) + & (__alignof__ (Elf64_Ehdr) - 1)) == 0)) + /* We can directly access the memory. */ + result = ((Elf64_Shdr *) ((char *) map_address + + ehdr.e64->e_shoff + + offset))->sh_size; + else + { + Elf64_Word size; + + if (pread (fildes, &size, sizeof (Elf64_Word), + offset + ehdr.e64->e_shoff + + offsetof (Elf64_Shdr, sh_size)) + != sizeof (Elf64_Word)) + return (size_t) -1l; + + if (e_ident[EI_DATA] != MY_ELFDATA) + CONVERT (size); + + result = size; + } + } + } + + return result; +} + + +/* Create descriptor for ELF file in memory. */ +static Elf * +file_read_elf (int fildes, void *map_address, off_t offset, size_t maxsize, + Elf_Cmd cmd, Elf *parent) +{ + /* We only read the ELF header now. */ + unsigned char *e_ident; + size_t scncnt; + Elf *elf; + + if (map_address != NULL) + /* It's right at the beginning of the file. No word access + required, just bytes. */ + e_ident = (unsigned char *) map_address + offset; + else + { + e_ident = (unsigned char *) alloca (EI_NIDENT); + + if (pread (fildes, e_ident, EI_NIDENT, offset) != EI_NIDENT) + { + __libelf_seterrno (ELF_E_READ_ERROR); + return NULL; + } + } + + /* Verify the binary is of the class we can handle. */ + if ((e_ident[EI_CLASS] != ELFCLASS32 + && e_ident[EI_CLASS] != ELFCLASS64) + /* We also can only handle two encodings. */ + || (e_ident[EI_DATA] != ELFDATA2LSB + && e_ident[EI_DATA] != ELFDATA2MSB)) + { + /* Cannot handle this. */ + __libelf_seterrno (ELF_E_INVALID_FILE); + return NULL; + } + + /* Determine the number of sections. */ + scncnt = get_shnum (map_address, e_ident, fildes, offset, maxsize); + if (scncnt == (size_t) -1l) + /* Could not determine the number of sections. */ + return NULL; + + /* We can now allocate the memory. */ + elf = allocate_elf (fildes, map_address, offset, maxsize, cmd, parent, + ELF_K_ELF, scncnt * sizeof (Elf_Scn)); + if (elf == NULL) + /* Not enough memory. */ + return NULL; + + /* Some more or less arbitrary value. */ + elf->state.elf.scnincr = 10; + + if (e_ident[EI_CLASS] == ELFCLASS32) + { + /* This pointer might not be directly usable if the alignment is + not sufficient for the architecture. */ + Elf32_Ehdr *ehdr = (Elf32_Ehdr *) ((char *) map_address + offset); + + assert ((unsigned int) scncnt == scncnt); + elf->state.elf32.scns.cnt = elf->state.elf32.scns.max = scncnt; + + /* This is a 32-bit binary. */ + if (map_address != NULL && e_ident[EI_DATA] == MY_ELFDATA + && (ALLOW_UNALIGNED + || ((((uintptr_t) ehdr) & (__alignof__ (Elf32_Ehdr) - 1)) == 0 + && ((uintptr_t) ((char *) ehdr + ehdr->e_shoff) + & (__alignof__ (Elf32_Shdr) - 1)) == 0 + && ((uintptr_t) ((char *) ehdr + ehdr->e_phoff) + & (__alignof__ (Elf32_Phdr) - 1)) == 0))) + { + /* We can use the mmapped memory. */ + elf->state.elf32.ehdr = + (Elf32_Ehdr *) ((char *) map_address + offset); + elf->state.elf32.shdr = + (Elf32_Shdr *) ((char *) map_address + offset + + elf->state.elf32.ehdr->e_shoff); + if (elf->state.elf32.ehdr->e_phnum) + /* Assign a value only if there really is a program + header. Otherwise the value remains NULL. */ + elf->state.elf32.phdr + = (Elf32_Phdr *) ((char *) map_address + offset + + elf->state.elf32.ehdr->e_phoff); + + for (size_t cnt = 0; cnt < scncnt; ++cnt) + { + elf->state.elf32.scns.data[cnt].index = cnt; + elf->state.elf32.scns.data[cnt].elf = elf; + elf->state.elf32.scns.data[cnt].shdr.e32 = + &elf->state.elf32.shdr[cnt]; + elf->state.elf32.scns.data[cnt].rawdata_base = + elf->state.elf32.scns.data[cnt].data_base = + ((char *) map_address + offset + + elf->state.elf32.shdr[cnt].sh_offset); + elf->state.elf32.scns.data[cnt].list = &elf->state.elf32.scns; + } + } + else + { + /* Read the data. */ + if (pread (elf->fildes, &elf->state.elf32.ehdr_mem, + sizeof (Elf32_Ehdr), offset) != sizeof (Elf32_Ehdr)) + { + /* We must be able to read the ELF header. */ + __libelf_seterrno (ELF_E_INVALID_FILE); + return NULL; + } + + if (e_ident[EI_DATA] != MY_ELFDATA) + { + CONVERT (elf->state.elf32.ehdr_mem.e_type); + CONVERT (elf->state.elf32.ehdr_mem.e_machine); + CONVERT (elf->state.elf32.ehdr_mem.e_version); + CONVERT (elf->state.elf32.ehdr_mem.e_entry); + CONVERT (elf->state.elf32.ehdr_mem.e_phoff); + CONVERT (elf->state.elf32.ehdr_mem.e_shoff); + CONVERT (elf->state.elf32.ehdr_mem.e_flags); + CONVERT (elf->state.elf32.ehdr_mem.e_ehsize); + CONVERT (elf->state.elf32.ehdr_mem.e_phentsize); + CONVERT (elf->state.elf32.ehdr_mem.e_phnum); + CONVERT (elf->state.elf32.ehdr_mem.e_shentsize); + CONVERT (elf->state.elf32.ehdr_mem.e_shnum); + CONVERT (elf->state.elf32.ehdr_mem.e_shstrndx); + } + + elf->state.elf32.ehdr = &elf->state.elf32.ehdr_mem; + + for (size_t cnt = 0; cnt < scncnt; ++cnt) + { + elf->state.elf32.scns.data[cnt].index = cnt; + elf->state.elf32.scns.data[cnt].elf = elf; + elf->state.elf32.scns.data[cnt].list = &elf->state.elf32.scns; + } + } + + /* So far only one block with sections. */ + elf->state.elf32.scns_last = &elf->state.elf32.scns; + } + else + { + /* This pointer might not be directly usable if the alignment is + not sufficient for the architecture. */ + Elf64_Ehdr *ehdr = (Elf64_Ehdr *) ((char *) map_address + offset); + + assert ((unsigned int) scncnt == scncnt); + elf->state.elf64.scns.cnt = elf->state.elf64.scns.max = scncnt; + + /* This is a 64-bit binary. */ + if (map_address != NULL && e_ident[EI_DATA] == MY_ELFDATA + && (ALLOW_UNALIGNED + || ((((uintptr_t) ehdr) & (__alignof__ (Elf64_Ehdr) - 1)) == 0 + && ((uintptr_t) ((char *) ehdr + ehdr->e_shoff) + & (__alignof__ (Elf64_Shdr) - 1)) == 0 + && ((uintptr_t) ((char *) ehdr + ehdr->e_phoff) + & (__alignof__ (Elf64_Phdr) - 1)) == 0))) + { + /* We can use the mmapped memory. */ + elf->state.elf64.ehdr = + (Elf64_Ehdr *) ((char *) map_address + offset); + elf->state.elf64.shdr = + (Elf64_Shdr *) ((char *) map_address + offset + + elf->state.elf64.ehdr->e_shoff); + if (elf->state.elf64.ehdr->e_phnum) + /* Assign a value only if there really is a program + header. Otherwise the value remains NULL. */ + elf->state.elf64.phdr + = (Elf64_Phdr *) ((char *) map_address + offset + + elf->state.elf64.ehdr->e_phoff); + + for (size_t cnt = 0; cnt < scncnt; ++cnt) + { + elf->state.elf64.scns.data[cnt].index = cnt; + elf->state.elf64.scns.data[cnt].elf = elf; + elf->state.elf64.scns.data[cnt].shdr.e64 = + &elf->state.elf64.shdr[cnt]; + elf->state.elf64.scns.data[cnt].rawdata_base = + elf->state.elf64.scns.data[cnt].data_base = + ((char *) map_address + offset + + elf->state.elf64.shdr[cnt].sh_offset); + elf->state.elf64.scns.data[cnt].list = &elf->state.elf64.scns; + } + } + else + { + /* Read the data. */ + if (pread (elf->fildes, &elf->state.elf64.ehdr_mem, + sizeof (Elf64_Ehdr), offset) != sizeof (Elf64_Ehdr)) + { + /* We must be able to read the ELF header. */ + __libelf_seterrno (ELF_E_INVALID_FILE); + return NULL; + } + + if (e_ident[EI_DATA] != MY_ELFDATA) + { + CONVERT (elf->state.elf64.ehdr_mem.e_type); + CONVERT (elf->state.elf64.ehdr_mem.e_machine); + CONVERT (elf->state.elf64.ehdr_mem.e_version); + CONVERT (elf->state.elf64.ehdr_mem.e_entry); + CONVERT (elf->state.elf64.ehdr_mem.e_phoff); + CONVERT (elf->state.elf64.ehdr_mem.e_shoff); + CONVERT (elf->state.elf64.ehdr_mem.e_flags); + CONVERT (elf->state.elf64.ehdr_mem.e_ehsize); + CONVERT (elf->state.elf64.ehdr_mem.e_phentsize); + CONVERT (elf->state.elf64.ehdr_mem.e_phnum); + CONVERT (elf->state.elf64.ehdr_mem.e_shentsize); + CONVERT (elf->state.elf64.ehdr_mem.e_shnum); + CONVERT (elf->state.elf64.ehdr_mem.e_shstrndx); + } + + elf->state.elf64.ehdr = &elf->state.elf64.ehdr_mem; + + for (size_t cnt = 0; cnt < scncnt; ++cnt) + { + elf->state.elf64.scns.data[cnt].index = cnt; + elf->state.elf64.scns.data[cnt].elf = elf; + elf->state.elf64.scns.data[cnt].list = &elf->state.elf64.scns; + } + } + + /* So far only one block with sections. */ + elf->state.elf64.scns_last = &elf->state.elf64.scns; + } + + /* Make the class easily available. */ + elf->class = e_ident[EI_CLASS]; + + return elf; +} + + +Elf * +internal_function_def +__libelf_read_mmaped_file (int fildes, void *map_address, off_t offset, + size_t maxsize, Elf_Cmd cmd, Elf *parent) +{ + /* We have to find out what kind of file this is. We handle ELF + files and archives. To find out what we have we must look at the + header. The header for an ELF file is EI_NIDENT bytes in size, + the header for an archive file SARMAG bytes long. */ + Elf_Kind kind; + + /* See what kind of object we have here. */ + kind = determine_kind (map_address + offset, maxsize); + + switch (kind) + { + case ELF_K_ELF: + return file_read_elf (fildes, map_address, offset, maxsize, cmd, parent); + + case ELF_K_AR: + return file_read_ar (fildes, map_address, offset, maxsize, cmd, parent); + + default: + break; + } + + /* This case is easy. Since we cannot do anything with this file + create a dummy descriptor. */ + return allocate_elf (fildes, map_address, offset, maxsize, cmd, parent, + ELF_K_NONE, 0); +} + + +static Elf * +read_unmmaped_file (int fildes, off_t offset, size_t maxsize, Elf_Cmd cmd, + Elf *parent) +{ + /* We have to find out what kind of file this is. We handle ELF + files and archives. To find out what we have we must read the + header. The header for an ELF file is EI_NIDENT bytes in size, + the header for an archive file SARMAG bytes long. Read the + maximum of these numbers. + + XXX We have to change this for the extended `ar' format some day. */ + unsigned char header[MAX (EI_NIDENT, SARMAG)]; + ssize_t nread; + Elf_Kind kind; + + /* Read the head of the file. */ + nread = pread (fildes, header, MIN (MAX (EI_NIDENT, SARMAG), maxsize), + offset); + if (nread == -1) + /* We cannot even read the head of the file. Maybe FILDES is associated + with an unseekable device. This is nothing we can handle. */ + return NULL; + + /* See what kind of object we have here. */ + kind = determine_kind (header, nread); + + switch (kind) + { + case ELF_K_AR: + return file_read_ar (fildes, NULL, offset, maxsize, cmd, parent); + + case ELF_K_ELF: + /* Make sure at least the ELF header is contained in the file. */ + if (maxsize >= (header[EI_CLASS] == ELFCLASS32 + ? sizeof (Elf32_Ehdr) : sizeof (Elf64_Ehdr))) + return file_read_elf (fildes, NULL, offset, maxsize, cmd, parent); + /* FALLTHROUGH */ + + default: + break; + } + + /* This case is easy. Since we cannot do anything with this file + create a dummy descriptor. */ + return allocate_elf (fildes, NULL, offset, maxsize, cmd, parent, + ELF_K_NONE, 0); +} + + +/* Open a file for reading. If possible we will try to mmap() the file. */ +static struct Elf * +read_file (int fildes, off_t offset, size_t maxsize, + Elf_Cmd cmd, Elf *parent) +{ + void *map_address = NULL; + int use_mmap = (cmd == ELF_C_READ_MMAP || cmd == ELF_C_RDWR_MMAP + || cmd == ELF_C_WRITE_MMAP + || cmd == ELF_C_READ_MMAP_PRIVATE); + +#if _MUDFLAP + /* Mudflap doesn't grok that our mmap'd data is ok. */ + use_mmap = 0; +#endif + + if (use_mmap) + { + if (parent == NULL) + { + if (maxsize == ~((size_t) 0)) + { + /* We don't know in the moment how large the file is. + Determine it now. */ + struct stat st; + + if (fstat (fildes, &st) == 0 + && (sizeof (size_t) >= sizeof (st.st_size) + || st.st_size <= ~((size_t) 0))) + maxsize = (size_t) st.st_size; + } + + /* We try to map the file ourself. */ + map_address = mmap (NULL, maxsize, (cmd == ELF_C_READ_MMAP + ? PROT_READ + : PROT_READ|PROT_WRITE), + cmd == ELF_C_READ_MMAP_PRIVATE + ? MAP_PRIVATE : MAP_SHARED, + fildes, offset); + + if (map_address == MAP_FAILED) + map_address = NULL; + } + else + { + /* The parent is already loaded. Use it. */ + assert (maxsize != ~((size_t) 0)); + + map_address = parent->map_address; + } + } + + /* If we have the file in memory optimize the access. */ + if (map_address != NULL) + { + struct Elf *result; + + result = __libelf_read_mmaped_file (fildes, map_address, offset, maxsize, + cmd, parent); + + /* If something went wrong during the initialization unmap the + memory if we mmaped here. */ + if (result == NULL + && (parent == NULL + || parent->map_address != map_address)) + munmap (map_address, maxsize); + else if (parent == NULL) + /* Remember that we mmap()ed the memory. */ + result->flags |= ELF_F_MMAPPED; + + return result; + } + + /* Otherwise we have to do it the hard way. We read as much as necessary + from the file whenever we need information which is not available. */ + return read_unmmaped_file (fildes, offset, maxsize, cmd, parent); +} + + +/* Find the entry with the long names for the content of this archive. */ +static const char * +read_long_names (Elf *elf) +{ + off_t offset = SARMAG; /* This is the first entry. */ + struct ar_hdr hdrm; + struct ar_hdr *hdr; + char *newp; + size_t len; + + while (1) + { + if (elf->map_address != NULL) + { + if (offset + sizeof (struct ar_hdr) > elf->maximum_size) + return NULL; + + /* The data is mapped. */ + hdr = (struct ar_hdr *) (elf->map_address + offset); + } + else + { + /* Read the header from the file. */ + if (pread (elf->fildes, &hdrm, sizeof (hdrm), + elf->start_offset + offset) != sizeof (hdrm)) + return NULL; + + hdr = &hdrm; + } + + len = atol (hdr->ar_size); + + if (memcmp (hdr->ar_name, "// ", 16) == 0) + break; + + offset += sizeof (struct ar_hdr) + ((len + 1) & ~1l); + } + + /* Due to the stupid format of the long name table entry (which are not + NUL terminted) we have to provide an appropriate representation anyhow. + Therefore we always make a copy which has the appropriate form. */ + newp = (char *) malloc (len); + if (newp != NULL) + { + char *runp; + + if (elf->map_address != NULL) + /* Simply copy it over. */ + elf->state.ar.long_names = (char *) memcpy (newp, + elf->map_address + offset + + sizeof (struct ar_hdr), + len); + else + { + if ((size_t) pread (elf->fildes, newp, len, + elf->start_offset + offset + + sizeof (struct ar_hdr)) + != len) + { + /* We were not able to read all data. */ + free (newp); + elf->state.ar.long_names = NULL; + return NULL; + } + elf->state.ar.long_names = newp; + } + + elf->state.ar.long_names_len = len; + + /* Now NUL-terminate the strings. */ + runp = newp; + while (1) + { + runp = (char *) memchr (runp, '/', newp + len - runp); + if (runp == NULL) + /* This was the last entry. */ + break; + + /* NUL-terminate the string. */ + *runp = '\0'; + + /* Skip the NUL bzte and the \012. */ + runp += 2; + + /* A sanity check. Somebody might have generated invalid + archive. */ + if (runp >= newp + len) + break; + } + } + + return newp; +} + + +/* Read the next archive header. */ +int +internal_function_def +__libelf_next_arhdr (elf) + Elf *elf; +{ + struct ar_hdr *ar_hdr; + Elf_Arhdr *elf_ar_hdr; + + if (elf->map_address != NULL) + { + /* See whether this entry is in the file. */ + if (elf->state.ar.offset + sizeof (struct ar_hdr) + > elf->start_offset + elf->maximum_size) + { + /* This record is not anymore in the file. */ + __libelf_seterrno (ELF_E_RANGE); + return -1; + } + ar_hdr = (struct ar_hdr *) (elf->map_address + elf->state.ar.offset); + } + else + { + ar_hdr = &elf->state.ar.ar_hdr; + + if (pread (elf->fildes, ar_hdr, sizeof (struct ar_hdr), + elf->state.ar.offset) + != sizeof (struct ar_hdr)) + { + /* Something went wrong while reading the file. */ + __libelf_seterrno (ELF_E_RANGE); + return -1; + } + } + + /* One little consistency check. */ + if (memcmp (ar_hdr->ar_fmag, ARFMAG, 2) != 0) + { + /* This is no valid archive. */ + __libelf_seterrno (ELF_E_ARCHIVE_FMAG); + return -1; + } + + /* Copy the raw name over to a NUL terminated buffer. */ + *((char *) __mempcpy (elf->state.ar.raw_name, ar_hdr->ar_name, 16)) = '\0'; + + elf_ar_hdr = &elf->state.ar.elf_ar_hdr; + + /* Now convert the `struct ar_hdr' into `Elf_Arhdr'. + Determine whether this is a special entry. */ + if (ar_hdr->ar_name[0] == '/') + { + if (ar_hdr->ar_name[1] == ' ' + && memcmp (ar_hdr->ar_name, "/ ", 16) == 0) + /* This is the index. */ + elf_ar_hdr->ar_name = memcpy (elf->state.ar.ar_name, "/", 2); + else if (ar_hdr->ar_name[1] == '/' + && memcmp (ar_hdr->ar_name, "// ", 16) == 0) + /* This is the array with the long names. */ + elf_ar_hdr->ar_name = memcpy (elf->state.ar.ar_name, "//", 3); + else if (isdigit (ar_hdr->ar_name[1])) + { + size_t offset; + + /* This is a long name. First we have to read the long name + table, if this hasn't happened already. */ + if (elf->state.ar.long_names == NULL + && read_long_names (elf) == NULL) + { + /* No long name table although it is reference. The archive is + broken. */ + __libelf_seterrno (ELF_E_INVALID_ARCHIVE); + return -1; + } + + offset = atol (ar_hdr->ar_name + 1); + if (offset >= elf->state.ar.long_names_len) + { + /* The index in the long name table is larger than the table. */ + __libelf_seterrno (ELF_E_INVALID_ARCHIVE); + return -1; + } + elf_ar_hdr->ar_name = elf->state.ar.long_names + offset; + } + else + { + /* This is none of the known special entries. */ + __libelf_seterrno (ELF_E_INVALID_ARCHIVE); + return -1; + } + } + else + { + char *endp; + + /* It is a normal entry. Copy over the name. */ + endp = (char *) memccpy (elf->state.ar.ar_name, ar_hdr->ar_name, + '/', 16); + if (endp != NULL) + endp[-1] = '\0'; + else + elf->state.ar.raw_name[16] = '\0'; + + elf_ar_hdr->ar_name = elf->state.ar.ar_name; + } + + /* Since there are no specialized functions to convert ASCII to + time_t, uid_t, gid_t, mode_t, and off_t we use either atol or + atoll depending on the size of the types. We are also prepared + for the case where the whole field in the `struct ar_hdr' is + filled in which case we cannot simply use atol/l but instead have + to create a temporary copy. */ + if (ar_hdr->ar_date[sizeof (ar_hdr->ar_date) - 1] == ' ') + { + if (ar_hdr->ar_date[0] == ' ') + elf_ar_hdr->ar_date = 0; + else + elf_ar_hdr->ar_date = (sizeof (time_t) <= sizeof (long int) + ? (time_t) atol (ar_hdr->ar_date) + : (time_t) atoll (ar_hdr->ar_date)); + } + else + { + char buf[sizeof (ar_hdr->ar_date) + 1]; + *((char *) __mempcpy (buf, ar_hdr->ar_date, sizeof (ar_hdr->ar_date))) + = '\0'; + elf_ar_hdr->ar_date = (sizeof (time_t) <= sizeof (long int) + ? (time_t) atol (ar_hdr->ar_date) + : (time_t) atoll (ar_hdr->ar_date)); + } + + if (ar_hdr->ar_uid[sizeof (ar_hdr->ar_uid) - 1] == ' ') + { + if (ar_hdr->ar_uid[0] == ' ') + elf_ar_hdr->ar_uid = 0; + else + elf_ar_hdr->ar_uid = (sizeof (uid_t) <= sizeof (long int) + ? (uid_t) atol (ar_hdr->ar_uid) + : (uid_t) atoll (ar_hdr->ar_uid)); + } + else + { + char buf[sizeof (ar_hdr->ar_uid) + 1]; + *((char *) __mempcpy (buf, ar_hdr->ar_uid, sizeof (ar_hdr->ar_uid))) + = '\0'; + elf_ar_hdr->ar_uid = (sizeof (uid_t) <= sizeof (long int) + ? (uid_t) atol (ar_hdr->ar_uid) + : (uid_t) atoll (ar_hdr->ar_uid)); + } + + if (ar_hdr->ar_gid[sizeof (ar_hdr->ar_gid) - 1] == ' ') + { + if (ar_hdr->ar_gid[0] == ' ') + elf_ar_hdr->ar_gid = 0; + else + elf_ar_hdr->ar_gid = (sizeof (gid_t) <= sizeof (long int) + ? (gid_t) atol (ar_hdr->ar_gid) + : (gid_t) atoll (ar_hdr->ar_gid)); + } + else + { + char buf[sizeof (ar_hdr->ar_gid) + 1]; + *((char *) __mempcpy (buf, ar_hdr->ar_gid, sizeof (ar_hdr->ar_gid))) + = '\0'; + elf_ar_hdr->ar_gid = (sizeof (gid_t) <= sizeof (long int) + ? (gid_t) atol (ar_hdr->ar_gid) + : (gid_t) atoll (ar_hdr->ar_gid)); + } + + if (ar_hdr->ar_mode[sizeof (ar_hdr->ar_mode) - 1] == ' ') + { + if (ar_hdr->ar_mode[0] == ' ') + elf_ar_hdr->ar_mode = 0; + else + elf_ar_hdr->ar_mode = (sizeof (mode_t) <= sizeof (long int) + ? (mode_t) strtol (ar_hdr->ar_mode, NULL, 8) + : (mode_t) strtoll (ar_hdr->ar_mode, NULL, 8)); + } + else + { + char buf[sizeof (ar_hdr->ar_mode) + 1]; + *((char *) __mempcpy (buf, ar_hdr->ar_mode, sizeof (ar_hdr->ar_mode))) + = '\0'; + elf_ar_hdr->ar_mode = (sizeof (mode_t) <= sizeof (long int) + ? (mode_t) strtol (ar_hdr->ar_mode, NULL, 8) + : (mode_t) strtoll (ar_hdr->ar_mode, NULL, 8)); + } + + if (ar_hdr->ar_size[sizeof (ar_hdr->ar_size) - 1] == ' ') + { + if (ar_hdr->ar_size[0] == ' ') + /* Something is really wrong. We cannot live without a size for + the member since it will not be possible to find the next + archive member. */ + { + __libelf_seterrno (ELF_E_INVALID_ARCHIVE); + return -1; + } + else + elf_ar_hdr->ar_size = (sizeof (time_t) == sizeof (long int) + ? (off_t) atol (ar_hdr->ar_size) + : (off_t) atoll (ar_hdr->ar_size)); + } + else + { + char buf[sizeof (ar_hdr->ar_size) + 1]; + *((char *) __mempcpy (buf, ar_hdr->ar_size, sizeof (ar_hdr->ar_size))) + = '\0'; + elf_ar_hdr->ar_size = (sizeof (time_t) == sizeof (long int) + ? (off_t) atol (ar_hdr->ar_size) + : (off_t) atoll (ar_hdr->ar_size)); + } + + return 0; +} + + +/* We were asked to return a clone of an existing descriptor. This + function must be called with the lock on the parent descriptor + being held. */ +static Elf * +dup_elf (int fildes, Elf_Cmd cmd, Elf *ref) +{ + struct Elf *result; + + if (fildes == -1) + /* Allow the user to pass -1 as the file descriptor for the new file. */ + fildes = ref->fildes; + /* The file descriptor better should be the same. If it was disconnected + already (using `elf_cntl') we do not test it. */ + else if (ref->fildes != -1 && fildes != ref->fildes) + { + __libelf_seterrno (ELF_E_FD_MISMATCH); + return NULL; + } + + /* The mode must allow reading. I.e., a descriptor creating with a + command different then ELF_C_READ, ELF_C_WRITE and ELF_C_RDWR is + not allowed. */ + if (ref->cmd != ELF_C_READ && ref->cmd != ELF_C_READ_MMAP + && ref->cmd != ELF_C_WRITE && ref->cmd != ELF_C_WRITE_MMAP + && ref->cmd != ELF_C_RDWR && ref->cmd != ELF_C_RDWR_MMAP + && ref->cmd != ELF_C_READ_MMAP_PRIVATE) + { + __libelf_seterrno (ELF_E_INVALID_OP); + return NULL; + } + + /* Now it is time to distinguish between reading normal files and + archives. Normal files can easily be handled be incrementing the + reference counter and return the same descriptor. */ + if (ref->kind != ELF_K_AR) + { + ++ref->ref_count; + return ref; + } + + /* This is an archive. We must create a descriptor for the archive + member the internal pointer of the archive file desriptor is + pointing to. First read the header of the next member if this + has not happened already. */ + if (ref->state.ar.elf_ar_hdr.ar_name == NULL + && __libelf_next_arhdr (ref) != 0) + /* Something went wrong. Maybe there is no member left. */ + return NULL; + + /* We have all the information we need about the next archive member. + Now create a descriptor for it. */ + result = read_file (fildes, ref->state.ar.offset + sizeof (struct ar_hdr), + ref->state.ar.elf_ar_hdr.ar_size, cmd, ref); + + /* Enlist this new descriptor in the list of children. */ + if (result != NULL) + { + result->next = ref->state.ar.children; + ref->state.ar.children = result; + } + + return result; +} + + +/* Return desriptor for empty file ready for writing. */ +static struct Elf * +write_file (int fd, Elf_Cmd cmd) +{ + /* We simply create an empty `Elf' structure. */ +#define NSCNSALLOC 10 + Elf *result = allocate_elf (fd, NULL, 0, 0, cmd, NULL, ELF_K_ELF, + NSCNSALLOC * sizeof (Elf_Scn)); + + if (result != NULL) + { + /* We have to write to the file in any case. */ + result->flags = ELF_F_DIRTY; + + /* Some more or less arbitrary value. */ + result->state.elf.scnincr = NSCNSALLOC; + + /* We have allocated room for some sections. */ + assert (offsetof (struct Elf, state.elf32.scns) + == offsetof (struct Elf, state.elf64.scns)); + result->state.elf.scns_last = &result->state.elf32.scns; + result->state.elf32.scns.max = NSCNSALLOC; + } + + return result; +} + + +/* Return a descriptor for the file belonging to FILDES. */ +Elf * +elf_begin (fildes, cmd, ref) + int fildes; + Elf_Cmd cmd; + Elf *ref; +{ + Elf *retval; + + if (! __libelf_version_initialized) + { + /* Version wasn't set so far. */ + __libelf_seterrno (ELF_E_NO_VERSION); + return NULL; + } + + if (ref != NULL) + /* Make sure the descriptor is not suddenly going away. */ + rwlock_rdlock (ref->lock); + else if (fcntl (fildes, F_GETFL) == -1 && errno == EBADF) + { + /* We cannot do anything productive without a file descriptor. */ + __libelf_seterrno (ELF_E_INVALID_FILE); + return NULL; + } + + switch (cmd) + { + case ELF_C_NULL: + /* We simply return a NULL pointer. */ + retval = NULL; + break; + + case ELF_C_READ_MMAP_PRIVATE: + /* If we have a reference it must also be opened this way. */ + if (ref != NULL && ref->cmd != ELF_C_READ_MMAP_PRIVATE) + { + __libelf_seterrno (ELF_E_INVALID_CMD); + retval = NULL; + break; + } + /* FALLTHROUGH */ + + case ELF_C_READ: + case ELF_C_READ_MMAP: + if (ref != NULL) + /* Duplicate the descriptor. */ + retval = dup_elf (fildes, cmd, ref); + else + /* Create descriptor for existing file. */ + retval = read_file (fildes, 0, ~((size_t) 0), cmd, NULL); + break; + + case ELF_C_RDWR: + case ELF_C_RDWR_MMAP: + /* If we have a REF object it must also be opened using this + command. */ + if (ref != NULL) + { + if (ref->cmd != ELF_C_RDWR && ref->cmd != ELF_C_RDWR_MMAP + && ref->cmd != ELF_C_WRITE && ref->cmd != ELF_C_WRITE_MMAP) + { + /* This is not ok. REF must also be opened for writing. */ + __libelf_seterrno (ELF_E_INVALID_CMD); + retval = NULL; + } + else + /* Duplicate this descriptor. */ + retval = dup_elf (fildes, cmd, ref); + } + else + /* Create descriptor for existing file. */ + retval = read_file (fildes, 0, ~((size_t) 0), cmd, NULL); + break; + + case ELF_C_WRITE: + case ELF_C_WRITE_MMAP: + /* We ignore REF and prepare a descriptor to write a new file. */ + retval = write_file (fildes, cmd); + break; + + default: + __libelf_seterrno (ELF_E_INVALID_CMD); + retval = NULL; + break; + } + + /* Release the lock. */ + if (ref != NULL) + rwlock_unlock (ref->lock); + + return retval; +} +INTDEF(elf_begin) diff --git a/libelf/elf_clone.c b/libelf/elf_clone.c new file mode 100644 index 0000000..516d2ae --- /dev/null +++ b/libelf/elf_clone.c @@ -0,0 +1,69 @@ +/* Create clone of a given descriptor. + Copyright (C) 2003, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "libelfP.h" +#include "common.h" + + +Elf * +elf_clone (Elf *elf, Elf_Cmd cmd) +{ + Elf *retval = NULL; + + if (elf == NULL) + /* Some earlier mistake. */ + return NULL; + + /* Make sure the descriptor is not suddenly going away. */ + rwlock_rdlock (elf->lock); + + if (cmd != ELF_C_EMPTY) + // XXX TODO handle ELF_C_READ/WRITE etc + goto out; + + retval = allocate_elf (elf->fildes, elf->map_address, elf->start_offset, + elf->maximum_size, elf->cmd, elf->parent, elf->kind, + elf->state.elf32.scns.max * sizeof (Elf_Scn)); + if (retval != NULL) + { + /* We have to write to the file in any case. */ + retval->flags = ELF_F_DIRTY; + + /* Some more or less arbitrary value. */ + retval->state.elf.scnincr = 10; + + /* We have allocated room for some sections. */ + assert (offsetof (struct Elf, state.elf32.scns) + == offsetof (struct Elf, state.elf64.scns)); + retval->state.elf.scns_last = &retval->state.elf32.scns; + retval->state.elf32.scns.max = elf->state.elf32.scns.max; + + retval->class = elf->class; + } + + /* Release the lock. */ + out: + rwlock_unlock (elf->lock); + + return retval; +} diff --git a/libelf/elf_cntl.c b/libelf/elf_cntl.c new file mode 100644 index 0000000..eea0f36 --- /dev/null +++ b/libelf/elf_cntl.c @@ -0,0 +1,71 @@ +/* Control an ELF file desrciptor. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include "libelfP.h" + + +int +elf_cntl (elf, cmd) + Elf *elf; + Elf_Cmd cmd; +{ + int result = 0; + + if (elf == NULL) + return -1; + + if (elf->fildes == -1) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return -1; + } + + rwlock_wrlock (elf->lock); + + switch (cmd) + { + case ELF_C_FDREAD: + /* If not all of the file is in the memory read it now. */ + if (elf->map_address == NULL && __libelf_readall (elf) == NULL) + { + /* We were not able to read everything. */ + result = -1; + break; + } + /* FALLTHROUGH */ + + case ELF_C_FDDONE: + /* Mark the file descriptor as not usable. */ + elf->fildes = -1; + break; + + default: + __libelf_seterrno (ELF_E_INVALID_CMD); + result = -1; + break; + } + + rwlock_unlock (elf->lock); + + return result; +} diff --git a/libelf/elf_end.c b/libelf/elf_end.c new file mode 100644 index 0000000..33626f0 --- /dev/null +++ b/libelf/elf_end.c @@ -0,0 +1,203 @@ +/* Free resources associated with Elf descriptor. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include "libelfP.h" + + +int +elf_end (elf) + Elf *elf; +{ + Elf *parent; + + if (elf == NULL) + /* This is allowed and is a no-op. */ + return 0; + + /* Make sure we are alone. */ + rwlock_wrlock (elf->lock); + + if (elf->ref_count != 0 && --elf->ref_count != 0) + { + /* Not yet the last activation. */ + int result = elf->ref_count; + rwlock_unlock (elf->lock); + return result; + } + + if (elf->kind == ELF_K_AR) + { + /* We cannot remove the descriptor now since we still have some + descriptors which depend on it. But we can free the archive + symbol table since this is only available via the archive ELF + descriptor. The long name table cannot be freed yet since + the archive headers for the ELF files in the archive point + into this array. */ + free (elf->state.ar.ar_sym); + elf->state.ar.ar_sym = NULL; + + if (elf->state.ar.children != NULL) + return 0; + } + + /* Remove this structure from the children list. */ + parent = elf->parent; + if (parent != NULL) + { + /* This is tricky. Lock must be acquire from the father to + the child but here we already have the child lock. We + solve this problem by giving free the child lock. The + state of REF_COUNT==0 is handled all over the library, so + this should be ok. */ + rwlock_unlock (elf->lock); + rwlock_rdlock (parent->lock); + rwlock_wrlock (elf->lock); + + if (parent->state.ar.children == elf) + parent->state.ar.children = elf->next; + else + { + struct Elf *child = parent->state.ar.children; + + while (child->next != elf) + child = child->next; + + child->next = elf->next; + } + + rwlock_unlock (parent->lock); + } + + /* This was the last activation. Free all resources. */ + switch (elf->kind) + { + case ELF_K_AR: + if (elf->state.ar.long_names != NULL) + free (elf->state.ar.long_names); + break; + + case ELF_K_ELF: + { + Elf_ScnList *list = (elf->class == ELFCLASS32 + || (offsetof (struct Elf, state.elf32.scns) + == offsetof (struct Elf, state.elf64.scns)) + ? &elf->state.elf32.scns + : &elf->state.elf64.scns); + + do + { + /* Free all separately allocated section headers. */ + size_t cnt = list->max; + + while (cnt-- > 0) + { + /* These pointers can be NULL; it's safe to use + 'free' since it will check for this. */ + Elf_Scn *scn = &list->data[cnt]; + Elf_Data_List *runp; + + if ((scn->shdr_flags & ELF_F_MALLOCED) != 0) + /* It doesn't matter which pointer. */ + free (scn->shdr.e32); + + /* If the file has the same byte order and the + architecture doesn't require overly stringent + alignment the raw data buffer is the same as the + one used for presenting to the caller. */ + if (scn->data_base != scn->rawdata_base) + free (scn->data_base); + + /* The section data is allocated if we couldn't mmap + the file. */ + if (elf->map_address == NULL) + free (scn->rawdata_base); + + /* Free the list of data buffers for the section. + We don't free the buffers themselves since this + is the users job. */ + runp = scn->data_list.next; + while (runp != NULL) + { + Elf_Data_List *oldp = runp; + runp = runp->next; + if ((oldp->flags & ELF_F_MALLOCED) != 0) + free (oldp); + } + } + + /* Free the memory for the array. */ + Elf_ScnList *oldp = list; + list = list->next; + assert (list == NULL || oldp->cnt == oldp->max); + if (oldp != (elf->class == ELFCLASS32 + || (offsetof (struct Elf, state.elf32.scns) + == offsetof (struct Elf, state.elf64.scns)) + ? &elf->state.elf32.scns + : &elf->state.elf64.scns)) + free (oldp); + } + while (list != NULL); + } + + /* Free the section header. */ + if (elf->state.elf.shdr_malloced != 0) + free (elf->class == ELFCLASS32 + || (offsetof (struct Elf, state.elf32.shdr) + == offsetof (struct Elf, state.elf64.shdr)) + ? (void *) elf->state.elf32.shdr + : (void *) elf->state.elf64.shdr); + + /* Free the program header. */ + if ((elf->state.elf.phdr_flags & ELF_F_MALLOCED) != 0) + free (elf->class == ELFCLASS32 + || (offsetof (struct Elf, state.elf32.phdr) + == offsetof (struct Elf, state.elf64.phdr)) + ? (void *) elf->state.elf32.phdr + : (void *) elf->state.elf64.phdr); + break; + + default: + break; + } + + if (elf->map_address != NULL && parent == NULL) + { + /* The file was read or mapped for this descriptor. */ + if ((elf->flags & ELF_F_MALLOCED) != 0) + free (elf->map_address); + else if ((elf->flags & ELF_F_MMAPPED) != 0) + munmap (elf->map_address, elf->maximum_size); + } + + rwlock_fini (elf->lock); + + /* Finally the descriptor itself. */ + free (elf); + + return (parent != NULL && parent->ref_count == 0 + ? INTUSE(elf_end) (parent) : 0); +} +INTDEF(elf_end) diff --git a/libelf/elf_error.c b/libelf/elf_error.c new file mode 100644 index 0000000..168ce11 --- /dev/null +++ b/libelf/elf_error.c @@ -0,0 +1,366 @@ +/* Error handling in libelf. + Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include + +#include "libelfP.h" + + +#ifdef USE_TLS +/* The error number. */ +static __thread int global_error; +#else +/* This is the key for the thread specific memory. */ +static tls_key_t key; + +/* The error number. Used in non-threaded programs. */ +static int global_error; +static bool threaded; +/* We need to initialize the thread-specific data. */ +once_define (static, once); + +/* The initialization and destruction functions. */ +static void init (void); +static void free_key_mem (void *mem); +#endif /* TLS */ + + +int +elf_errno (void) +{ + int result; + +#ifndef USE_TLS + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if (threaded) + { + /* We do not allocate memory for the data. It is only a word. + We can store it in place of the pointer. */ + result = (intptr_t) getspecific (key); + + setspecific (key, (void *) (intptr_t) ELF_E_NOERROR); + return result; + } +#endif /* TLS */ + + result = global_error; + global_error = ELF_E_NOERROR; + return result; +} + + +/* Return the appropriate message for the error. */ +static const char msgstr[] = +{ +#define ELF_E_NOERROR_IDX 0 + N_("no error") + "\0" +#define ELF_E_UNKNOWN_ERROR_IDX (ELF_E_NOERROR_IDX + sizeof "no error") + N_("unknown error") + "\0" +#define ELF_E_UNKNOWN_VERSION_IDX \ + (ELF_E_UNKNOWN_ERROR_IDX + sizeof "unknown error") + N_("unknown version") + "\0" +#define ELF_E_UNKNOWN_TYPE_IDX \ + (ELF_E_UNKNOWN_VERSION_IDX + sizeof "unknown version") + N_("unknown type") + "\0" +#define ELF_E_INVALID_HANDLE_IDX \ + (ELF_E_UNKNOWN_TYPE_IDX + sizeof "unknown type") + N_("invalid `Elf' handle") + "\0" +#define ELF_E_SOURCE_SIZE_IDX \ + (ELF_E_INVALID_HANDLE_IDX + sizeof "invalid `Elf' handle") + N_("invalid size of source operand") + "\0" +#define ELF_E_DEST_SIZE_IDX \ + (ELF_E_SOURCE_SIZE_IDX + sizeof "invalid size of source operand") + N_("invalid size of destination operand") + "\0" +#define ELF_E_INVALID_ENCODING_IDX \ + (ELF_E_DEST_SIZE_IDX + sizeof "invalid size of destination operand") + N_("invalid encoding") + "\0" +#define ELF_E_NOMEM_IDX \ + (ELF_E_INVALID_ENCODING_IDX + sizeof "invalid encoding") + N_("out of memory") + "\0" +#define ELF_E_INVALID_FILE_IDX \ + (ELF_E_NOMEM_IDX + sizeof "out of memory") + N_("invalid file descriptor") + "\0" +#define ELF_E_INVALID_OP_IDX \ + (ELF_E_INVALID_FILE_IDX + sizeof "invalid file descriptor") + N_("invalid operation") + "\0" +#define ELF_E_NO_VERSION_IDX \ + (ELF_E_INVALID_OP_IDX + sizeof "invalid operation") + N_("ELF version not set") + "\0" +#define ELF_E_INVALID_CMD_IDX \ + (ELF_E_NO_VERSION_IDX + sizeof "ELF version not set") + N_("invalid command") + "\0" +#define ELF_E_RANGE_IDX \ + (ELF_E_INVALID_CMD_IDX + sizeof "invalid command") + N_("offset out of range") + "\0" +#define ELF_E_ARCHIVE_FMAG_IDX \ + (ELF_E_RANGE_IDX + sizeof "offset out of range") + N_("invalid fmag field in archive header") + "\0" +#define ELF_E_INVALID_ARCHIVE_IDX \ + (ELF_E_ARCHIVE_FMAG_IDX + sizeof "invalid fmag field in archive header") + N_("invalid archive file") + "\0" +#define ELF_E_NO_ARCHIVE_IDX \ + (ELF_E_INVALID_ARCHIVE_IDX + sizeof "invalid archive file") + N_("descriptor is not for an archive") + "\0" +#define ELF_E_NO_INDEX_IDX \ + (ELF_E_NO_ARCHIVE_IDX + sizeof "descriptor is not for an archive") + N_("no index available") + "\0" +#define ELF_E_READ_ERROR_IDX \ + (ELF_E_NO_INDEX_IDX + sizeof "no index available") + N_("cannot read data from file") + "\0" +#define ELF_E_WRITE_ERROR_IDX \ + (ELF_E_READ_ERROR_IDX + sizeof "cannot read data from file") + N_("cannot write data to file") + "\0" +#define ELF_E_INVALID_CLASS_IDX \ + (ELF_E_WRITE_ERROR_IDX + sizeof "cannot write data to file") + N_("invalid binary class") + "\0" +#define ELF_E_INVALID_INDEX_IDX \ + (ELF_E_INVALID_CLASS_IDX + sizeof "invalid binary class") + N_("invalid section index") + "\0" +#define ELF_E_INVALID_OPERAND_IDX \ + (ELF_E_INVALID_INDEX_IDX + sizeof "invalid section index") + N_("invalid operand") + "\0" +#define ELF_E_INVALID_SECTION_IDX \ + (ELF_E_INVALID_OPERAND_IDX + sizeof "invalid operand") + N_("invalid section") + "\0" +#define ELF_E_INVALID_COMMAND_IDX \ + (ELF_E_INVALID_SECTION_IDX + sizeof "invalid section") + N_("invalid command") + "\0" +#define ELF_E_WRONG_ORDER_EHDR_IDX \ + (ELF_E_INVALID_COMMAND_IDX + sizeof "invalid command") + N_("executable header not created first") + "\0" +#define ELF_E_FD_DISABLED_IDX \ + (ELF_E_WRONG_ORDER_EHDR_IDX + sizeof "executable header not created first") + N_("file descriptor disabled") + "\0" +#define ELF_E_FD_MISMATCH_IDX \ + (ELF_E_FD_DISABLED_IDX + sizeof "file descriptor disabled") + N_("archive/member fildes mismatch") + "\0" +#define ELF_E_OFFSET_RANGE_IDX \ + (ELF_E_FD_MISMATCH_IDX + sizeof "archive/member fildes mismatch") + N_("offset out of range") + "\0" +#define ELF_E_NOT_NUL_SECTION_IDX \ + (ELF_E_OFFSET_RANGE_IDX + sizeof "offset out of range") + N_("cannot manipulate null section") + "\0" +#define ELF_E_DATA_MISMATCH_IDX \ + (ELF_E_NOT_NUL_SECTION_IDX + sizeof "cannot manipulate null section") + N_("data/scn mismatch") + "\0" +#define ELF_E_INVALID_SECTION_HEADER_IDX \ + (ELF_E_DATA_MISMATCH_IDX + sizeof "data/scn mismatch") + N_("invalid section header") + "\0" +#define ELF_E_INVALID_DATA_IDX \ + (ELF_E_INVALID_SECTION_HEADER_IDX + sizeof "invalid section header") + N_("invalid data") + "\0" +#define ELF_E_DATA_ENCODING_IDX \ + (ELF_E_INVALID_DATA_IDX + sizeof "invalid data") + N_("unknown data encoding") + "\0" +#define ELF_E_SECTION_TOO_SMALL_IDX \ + (ELF_E_DATA_ENCODING_IDX + sizeof "unknown data encoding") + N_("section `sh_size' too small for data") + "\0" +#define ELF_E_INVALID_ALIGN_IDX \ + (ELF_E_SECTION_TOO_SMALL_IDX + sizeof "section `sh_size' too small for data") + N_("invalid section alignment") + "\0" +#define ELF_E_INVALID_SHENTSIZE_IDX \ + (ELF_E_INVALID_ALIGN_IDX + sizeof "invalid section alignment") + N_("invalid section entry size") + "\0" +#define ELF_E_UPDATE_RO_IDX \ + (ELF_E_INVALID_SHENTSIZE_IDX + sizeof "invalid section entry size") + N_("update() for write on read-only file") + "\0" +#define ELF_E_NOFILE_IDX \ + (ELF_E_UPDATE_RO_IDX + sizeof "update() for write on read-only file") + N_("no such file") + "\0" +#define ELF_E_GROUP_NOT_REL_IDX \ + (ELF_E_NOFILE_IDX + sizeof "no such file") + N_("only relocatable files can contain section groups") + "\0" +#define ELF_E_INVALID_PHDR_IDX \ + (ELF_E_GROUP_NOT_REL_IDX \ + + sizeof "only relocatable files can contain section groups") + N_("program header only allowed in executables and shared objects") + "\0" +#define ELF_E_NO_PHDR_IDX \ + (ELF_E_INVALID_PHDR_IDX \ + + sizeof "program header only allowed in executables and shared objects") + N_("file has no program header") +}; + + +static const uint_fast16_t msgidx[ELF_E_NUM] = +{ + [ELF_E_NOERROR] = ELF_E_NOERROR_IDX, + [ELF_E_UNKNOWN_ERROR] = ELF_E_UNKNOWN_ERROR_IDX, + [ELF_E_UNKNOWN_VERSION] = ELF_E_UNKNOWN_VERSION_IDX, + [ELF_E_UNKNOWN_TYPE] = ELF_E_UNKNOWN_TYPE_IDX, + [ELF_E_INVALID_HANDLE] = ELF_E_INVALID_HANDLE_IDX, + [ELF_E_SOURCE_SIZE] = ELF_E_SOURCE_SIZE_IDX, + [ELF_E_DEST_SIZE] = ELF_E_DEST_SIZE_IDX, + [ELF_E_INVALID_ENCODING] = ELF_E_INVALID_ENCODING_IDX, + [ELF_E_NOMEM] = ELF_E_NOMEM_IDX, + [ELF_E_INVALID_FILE] = ELF_E_INVALID_FILE_IDX, + [ELF_E_INVALID_OP] = ELF_E_INVALID_OP_IDX, + [ELF_E_NO_VERSION] = ELF_E_NO_VERSION_IDX, + [ELF_E_INVALID_CMD] = ELF_E_INVALID_CMD_IDX, + [ELF_E_RANGE] = ELF_E_RANGE_IDX, + [ELF_E_ARCHIVE_FMAG] = ELF_E_ARCHIVE_FMAG_IDX, + [ELF_E_INVALID_ARCHIVE] = ELF_E_INVALID_ARCHIVE_IDX, + [ELF_E_NO_ARCHIVE] = ELF_E_NO_ARCHIVE_IDX, + [ELF_E_NO_INDEX] = ELF_E_NO_INDEX_IDX, + [ELF_E_READ_ERROR] = ELF_E_READ_ERROR_IDX, + [ELF_E_WRITE_ERROR] = ELF_E_WRITE_ERROR_IDX, + [ELF_E_INVALID_CLASS] = ELF_E_INVALID_CLASS_IDX, + [ELF_E_INVALID_INDEX] = ELF_E_INVALID_INDEX_IDX, + [ELF_E_INVALID_OPERAND] = ELF_E_INVALID_OPERAND_IDX, + [ELF_E_INVALID_SECTION] = ELF_E_INVALID_SECTION_IDX, + [ELF_E_INVALID_COMMAND] = ELF_E_INVALID_COMMAND_IDX, + [ELF_E_WRONG_ORDER_EHDR] = ELF_E_WRONG_ORDER_EHDR_IDX, + [ELF_E_FD_DISABLED] = ELF_E_FD_DISABLED_IDX, + [ELF_E_FD_MISMATCH] = ELF_E_FD_MISMATCH_IDX, + [ELF_E_OFFSET_RANGE] = ELF_E_OFFSET_RANGE_IDX, + [ELF_E_NOT_NUL_SECTION] = ELF_E_NOT_NUL_SECTION_IDX, + [ELF_E_DATA_MISMATCH] = ELF_E_DATA_MISMATCH_IDX, + [ELF_E_INVALID_SECTION_HEADER] = ELF_E_INVALID_SECTION_HEADER_IDX, + [ELF_E_INVALID_DATA] = ELF_E_INVALID_DATA_IDX, + [ELF_E_DATA_ENCODING] = ELF_E_DATA_ENCODING_IDX, + [ELF_E_SECTION_TOO_SMALL] = ELF_E_SECTION_TOO_SMALL_IDX, + [ELF_E_INVALID_ALIGN] = ELF_E_INVALID_ALIGN_IDX, + [ELF_E_INVALID_SHENTSIZE] = ELF_E_INVALID_SHENTSIZE_IDX, + [ELF_E_UPDATE_RO] = ELF_E_UPDATE_RO_IDX, + [ELF_E_NOFILE] = ELF_E_NOFILE_IDX, + [ELF_E_GROUP_NOT_REL] = ELF_E_GROUP_NOT_REL_IDX, + [ELF_E_INVALID_PHDR] = ELF_E_INVALID_PHDR_IDX, + [ELF_E_NO_PHDR] = ELF_E_NO_PHDR_IDX +}; +#define nmsgidx ((int) (sizeof (msgidx) / sizeof (msgidx[0]))) + + +void +__libelf_seterrno (value) + int value; +{ +#ifndef USE_TLS + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if (threaded) + /* We do not allocate memory for the data. It is only a word. + We can store it in place of the pointer. */ + setspecific (key, (void *) (intptr_t) value); +#endif /* TLS */ + + global_error = value >= 0 && value < nmsgidx ? value : ELF_E_UNKNOWN_ERROR; +} + + +const char * +elf_errmsg (error) + int error; +{ + int last_error; + +#ifndef USE_TLS + /* If we have not yet initialized the buffer do it now. */ + once_execute (once, init); + + if ((error == 0 || error == -1) && threaded) + /* We do not allocate memory for the data. It is only a word. + We can store it in place of the pointer. */ + last_error = (intptr_t) getspecific (key); + else +#endif /* TLS */ + last_error = global_error; + + if (error == 0) + { + assert (msgidx[last_error] < sizeof (msgstr)); + return last_error != 0 ? _(msgstr + msgidx[last_error]) : NULL; + } + else if (error < -1 || error >= nmsgidx) + return _(msgstr + ELF_E_UNKNOWN_ERROR_IDX); + + assert (msgidx[error == -1 ? last_error : error] < sizeof (msgstr)); + return _(msgstr + msgidx[error == -1 ? last_error : error]); +} + + +#ifndef USE_TLS +/* Free the thread specific data, this is done if a thread terminates. */ +static void +free_key_mem (void *mem __attribute__ ((unused))) +{ + setspecific (key, NULL); +} + + +/* Initialize the key for the global variable. */ +static void +init (void) +{ + // XXX Screw you, gcc4, the unused function attribute does not work. + __asm ("" :: "r" (free_key_mem)); + + if (key_create (&key, free_key_mem) == 0) + /* Creating the key succeeded. */ + threaded = true; +} +#endif /* TLS */ diff --git a/libelf/elf_fill.c b/libelf/elf_fill.c new file mode 100644 index 0000000..f09cc7b --- /dev/null +++ b/libelf/elf_fill.c @@ -0,0 +1,35 @@ +/* Set fill byte used when constructing ELF objects. + Copyright (C) 1998, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include "libelfP.h" + + +int __libelf_fill_byte; + + +void +elf_fill (fill) + int fill; +{ + __libelf_fill_byte = fill; +} diff --git a/libelf/elf_flagdata.c b/libelf/elf_flagdata.c new file mode 100644 index 0000000..b519131 --- /dev/null +++ b/libelf/elf_flagdata.c @@ -0,0 +1,59 @@ +/* Manipulate ELF data flag. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +unsigned int +elf_flagdata (data, cmd, flags) + Elf_Data *data; + Elf_Cmd cmd; + unsigned int flags; +{ + Elf_Data_Scn *data_scn; + unsigned int result; + + if (data == NULL) + return 0; + + data_scn = (Elf_Data_Scn *) data; + + if (data_scn == NULL || unlikely (data_scn->s->elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return 0; + } + + if (likely (cmd == ELF_C_SET)) + result = (data_scn->s->flags |= (flags & ELF_F_DIRTY)); + else if (likely (cmd == ELF_C_CLR)) + result = (data_scn->s->flags &= ~(flags & ELF_F_DIRTY)); + else + { + __libelf_seterrno (ELF_E_INVALID_COMMAND); + return 0; + } + + return result; +} diff --git a/libelf/elf_flagehdr.c b/libelf/elf_flagehdr.c new file mode 100644 index 0000000..2099fc5 --- /dev/null +++ b/libelf/elf_flagehdr.c @@ -0,0 +1,56 @@ +/* Manipulate ELF header flags. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +unsigned int +elf_flagehdr (elf, cmd, flags) + Elf *elf; + Elf_Cmd cmd; + unsigned int flags; +{ + unsigned int result; + + if (elf == NULL) + return 0; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return 0; + } + + if (likely (cmd == ELF_C_SET)) + result = (elf->state.elf.ehdr_flags |= (flags & ELF_F_DIRTY)); + else if (cmd == ELF_C_CLR) + result = (elf->state.elf.ehdr_flags &= ~(flags & ELF_F_DIRTY)); + else + { + __libelf_seterrno (ELF_E_INVALID_COMMAND); + return 0; + } + + return result; +} diff --git a/libelf/elf_flagelf.c b/libelf/elf_flagelf.c new file mode 100644 index 0000000..3a001f6 --- /dev/null +++ b/libelf/elf_flagelf.c @@ -0,0 +1,58 @@ +/* Manipulate ELF file flags. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +unsigned int +elf_flagelf (elf, cmd, flags) + Elf *elf; + Elf_Cmd cmd; + unsigned int flags; +{ + unsigned int result; + + if (elf == NULL) + return 0; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return 0; + } + + if (likely (cmd == ELF_C_SET)) + result = (elf->flags + |= (flags & (ELF_F_DIRTY | ELF_F_LAYOUT | ELF_F_PERMISSIVE))); + else if (likely (cmd == ELF_C_CLR)) + result = (elf->flags + &= ~(flags & (ELF_F_DIRTY | ELF_F_LAYOUT | ELF_F_PERMISSIVE))); + else + { + __libelf_seterrno (ELF_E_INVALID_COMMAND); + return 0; + } + + return result; +} diff --git a/libelf/elf_flagphdr.c b/libelf/elf_flagphdr.c new file mode 100644 index 0000000..c2f8794 --- /dev/null +++ b/libelf/elf_flagphdr.c @@ -0,0 +1,56 @@ +/* Manipulate ELF program header flags. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +unsigned int +elf_flagphdr (elf, cmd, flags) + Elf *elf; + Elf_Cmd cmd; + unsigned int flags; +{ + unsigned int result; + + if (elf == NULL) + return 0; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return 0; + } + + if (likely (cmd == ELF_C_SET)) + result = (elf->state.elf.phdr_flags |= (flags & ELF_F_DIRTY)); + else if (likely (cmd == ELF_C_CLR)) + result = (elf->state.elf.phdr_flags &= ~(flags & ELF_F_DIRTY)); + else + { + __libelf_seterrno (ELF_E_INVALID_COMMAND); + return 0; + } + + return result; +} diff --git a/libelf/elf_flagscn.c b/libelf/elf_flagscn.c new file mode 100644 index 0000000..9cd1cc4 --- /dev/null +++ b/libelf/elf_flagscn.c @@ -0,0 +1,56 @@ +/* Manipulate ELF section flags. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +unsigned int +elf_flagscn (scn, cmd, flags) + Elf_Scn *scn; + Elf_Cmd cmd; + unsigned int flags; +{ + unsigned int result; + + if (scn == NULL) + return 0; + + if (unlikely (scn->elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return 0; + } + + if (likely (cmd == ELF_C_SET)) + result = (scn->flags |= (flags & ELF_F_DIRTY)); + else if (likely (cmd == ELF_C_CLR)) + result = (scn->flags &= ~(flags & ELF_F_DIRTY)); + else + { + __libelf_seterrno (ELF_E_INVALID_COMMAND); + return 0; + } + + return result; +} diff --git a/libelf/elf_flagshdr.c b/libelf/elf_flagshdr.c new file mode 100644 index 0000000..0972d27 --- /dev/null +++ b/libelf/elf_flagshdr.c @@ -0,0 +1,56 @@ +/* Manipulate ELF section header flags. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +unsigned int +elf_flagshdr (scn, cmd, flags) + Elf_Scn *scn; + Elf_Cmd cmd; + unsigned int flags; +{ + unsigned int result; + + if (scn == NULL) + return 0; + + if (unlikely (scn->elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return 0; + } + + if (likely (cmd == ELF_C_SET)) + result = (scn->shdr_flags |= (flags & ELF_F_DIRTY)); + else if (likely (cmd == ELF_C_CLR)) + result = (scn->shdr_flags &= ~(flags & ELF_F_DIRTY)); + else + { + __libelf_seterrno (ELF_E_INVALID_COMMAND); + return 0; + } + + return result; +} diff --git a/libelf/elf_getarhdr.c b/libelf/elf_getarhdr.c new file mode 100644 index 0000000..da0b4a4 --- /dev/null +++ b/libelf/elf_getarhdr.c @@ -0,0 +1,53 @@ +/* Read header of next archive member. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +Elf_Arhdr * +elf_getarhdr (elf) + Elf *elf; +{ + Elf *parent = elf->parent; + + /* Calling this function is not ok for any file type but archives. */ + if (parent == NULL) + { + __libelf_seterrno (ELF_E_INVALID_OP); + return NULL; + } + + /* Make sure we have read the archive header. */ + if (parent->state.ar.elf_ar_hdr.ar_name == NULL + && __libelf_next_arhdr (parent) != 0) + /* Something went wrong. Maybe there is no member left. */ + return NULL; + + + /* We can be sure the parent is an archive. */ + assert (parent->kind == ELF_K_AR); + + return &parent->state.ar.elf_ar_hdr; +} diff --git a/libelf/elf_getarsym.c b/libelf/elf_getarsym.c new file mode 100644 index 0000000..1dafa9a --- /dev/null +++ b/libelf/elf_getarsym.c @@ -0,0 +1,241 @@ +/* Return symbol table of archive. + Copyright (C) 1998, 1999, 2000, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include + +#include +#include "libelfP.h" + + +Elf_Arsym * +elf_getarsym (elf, ptr) + Elf *elf; + size_t *ptr; +{ + if (elf->kind != ELF_K_AR) + { + /* This is no archive. */ + __libelf_seterrno (ELF_E_NO_ARCHIVE); + return NULL; + } + + if (ptr != NULL) + /* In case of an error or when we know the value store the expected + value now. Doing this allows us easier exits in an error case. */ + *ptr = elf->state.ar.ar_sym_num; + + if (elf->state.ar.ar_sym == (Elf_Arsym *) -1l) + { + /* There is no index. */ + __libelf_seterrno (ELF_E_NO_INDEX); + return NULL; + } + + Elf_Arsym *result = elf->state.ar.ar_sym; + if (result == NULL) + { + /* We have not yet read the index. */ + rwlock_wrlock (elf->lock); + + /* In case we find no index remember this for the next call. */ + elf->state.ar.ar_sym = (Elf_Arsym *) -1l; + + struct ar_hdr *index_hdr; + if (elf->map_address == NULL) + { + /* We must read index from the file. */ + assert (elf->fildes != -1); + if (pread (elf->fildes, &elf->state.ar.ar_hdr, + sizeof (struct ar_hdr), elf->start_offset + SARMAG) + != sizeof (struct ar_hdr)) + { + /* It is not possible to read the index. Maybe it does not + exist. */ + __libelf_seterrno (ELF_E_READ_ERROR); + goto out; + } + + index_hdr = &elf->state.ar.ar_hdr; + } + else + { + if (SARMAG + sizeof (struct ar_hdr) > elf->maximum_size) + { + /* There is no room for the full archive. */ + __libelf_seterrno (ELF_E_NO_INDEX); + goto out; + } + + index_hdr = (struct ar_hdr *) (elf->map_address + + elf->start_offset + SARMAG); + } + + /* Now test whether this really is an archive. */ + if (memcmp (index_hdr->ar_fmag, ARFMAG, 2) != 0) + { + /* Invalid magic bytes. */ + __libelf_seterrno (ELF_E_ARCHIVE_FMAG); + goto out; + } + + /* Now test whether this is the index. It is denoted by the + name being "/ ". + XXX This is not entirely true. There are some more forms. + Which of them shall we handle? */ + if (memcmp (index_hdr->ar_name, "/ ", 16) != 0) + { + /* If the index is not the first entry, there is no index. + + XXX Is this true? */ + __libelf_seterrno (ELF_E_NO_INDEX); + goto out; + } + + /* We have an archive. The first word in there is the number of + entries in the table. */ + uint32_t n; + if (elf->map_address == NULL) + { + if (pread (elf->fildes, &n, sizeof (n), + elf->start_offset + SARMAG + sizeof (struct ar_hdr)) + != sizeof (n)) + { + /* Cannot read the number of entries. */ + __libelf_seterrno (ELF_E_NO_INDEX); + goto out; + } + } + else + n = *(uint32_t *) (elf->map_address + elf->start_offset + + SARMAG + sizeof (struct ar_hdr)); + + if (__BYTE_ORDER == __LITTLE_ENDIAN) + n = bswap_32 (n); + + /* Now we can perform some first tests on whether all the data + needed for the index is available. */ + char tmpbuf[17]; + memcpy (tmpbuf, index_hdr->ar_size, 10); + tmpbuf[10] = '\0'; + size_t index_size = atol (tmpbuf); + + if (SARMAG + sizeof (struct ar_hdr) + index_size > elf->maximum_size + || n * sizeof (uint32_t) > index_size) + { + /* This index table cannot be right since it does not fit into + the file. */ + __libelf_seterrno (ELF_E_NO_INDEX); + goto out; + } + + /* Now we can allocate the arrays needed to store the index. */ + size_t ar_sym_len = (n + 1) * sizeof (Elf_Arsym); + elf->state.ar.ar_sym = (Elf_Arsym *) malloc (ar_sym_len); + if (elf->state.ar.ar_sym != NULL) + { + uint32_t *file_data; + char *str_data; + + if (elf->map_address == NULL) + { + file_data = (uint32_t *) alloca (n * sizeof (uint32_t)); + + ar_sym_len += index_size - n * sizeof (uint32_t); + Elf_Arsym *newp = (Elf_Arsym *) realloc (elf->state.ar.ar_sym, + ar_sym_len); + if (newp == NULL) + { + free (elf->state.ar.ar_sym); + elf->state.ar.ar_sym = NULL; + __libelf_seterrno (ELF_E_NOMEM); + goto out; + } + elf->state.ar.ar_sym = newp; + + char *new_str = (char *) (elf->state.ar.ar_sym + n + 1); + + /* Now read the data from the file. */ + if ((size_t) pread (elf->fildes, file_data, + n * sizeof (uint32_t), elf->start_offset + + SARMAG + sizeof (struct ar_hdr) + + sizeof (uint32_t)) != n * sizeof (uint32_t) + || ((size_t) pread (elf->fildes, new_str, + index_size - n * sizeof (uint32_t), + elf->start_offset + + SARMAG + sizeof (struct ar_hdr) + + (n + 1) * sizeof (uint32_t)) + != index_size - n * sizeof (uint32_t))) + { + /* We were not able to read the data. */ + free (elf->state.ar.ar_sym); + elf->state.ar.ar_sym = NULL; + __libelf_seterrno (ELF_E_NO_INDEX); + goto out; + } + + str_data = (char *) new_str; + } + else + { + file_data = (uint32_t *) (elf->map_address + elf->start_offset + + SARMAG + sizeof (struct ar_hdr) + + sizeof (uint32_t)); + str_data = (char *) &file_data[n]; + } + + /* Now we can build the data structure. */ + Elf_Arsym *arsym = elf->state.ar.ar_sym; + for (size_t cnt = 0; cnt < n; ++cnt) + { + arsym[cnt].as_name = str_data; + if (__BYTE_ORDER == __LITTLE_ENDIAN) + arsym[cnt].as_off = bswap_32 (file_data[cnt]); + else + arsym[cnt].as_off = file_data[cnt]; + arsym[cnt].as_hash = _dl_elf_hash (str_data); + str_data = rawmemchr (str_data, '\0') + 1; + } + /* At the end a special entry. */ + arsym[n].as_name = NULL; + arsym[n].as_off = 0; + arsym[n].as_hash = ~0UL; + + /* Tell the caller how many entries we have. */ + elf->state.ar.ar_sym_num = n + 1; + } + + result = elf->state.ar.ar_sym; + + out: + rwlock_unlock (elf->lock); + } + + if (ptr != NULL) + *ptr = elf->state.ar.ar_sym_num; + + return result; +} diff --git a/libelf/elf_getbase.c b/libelf/elf_getbase.c new file mode 100644 index 0000000..ea76f41 --- /dev/null +++ b/libelf/elf_getbase.c @@ -0,0 +1,33 @@ +/* Return offset of first byte for the object. + Copyright (C) 1998, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +off_t +elf_getbase (elf) + Elf *elf; +{ + return elf == NULL ? (off_t) -1 : elf->start_offset; +} diff --git a/libelf/elf_getdata.c b/libelf/elf_getdata.c new file mode 100644 index 0000000..20e8e62 --- /dev/null +++ b/libelf/elf_getdata.c @@ -0,0 +1,454 @@ +/* Return the next data element from the section after possibly converting it. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" +#include "common.h" +#include "elf-knowledge.h" + + +#if _STRING_ARCH_unaligned +# define ALLOW_ALIGNED 1 +#else +# define ALLOW_ALIGNED 0 +#endif + + +#define TYPEIDX(Sh_Type) \ + (Sh_Type >= SHT_NULL && Sh_Type < SHT_NUM \ + ? Sh_Type \ + : (Sh_Type >= SHT_GNU_LIBLIST && Sh_Type <= SHT_HISUNW \ + ? SHT_NUM + Sh_Type - SHT_GNU_LIBLIST \ + : 0)) + +static const struct +{ + Elf_Type type; + size_t size; +#if ALLOW_ALIGNED +# define AL(val) +#else + size_t align; +# define AL(val), val +#endif +} shtype_map[EV_NUM - 1][ELFCLASSNUM - 1][TYPEIDX (SHT_HISUNW) + 1] = +{ + [EV_CURRENT - 1] = + { + [ELFCLASS32 - 1] = + { + /* Associate section types with libelf types, their sizes and + alignment. SHT_GNU_verdef is special since the section does + not contain entries of only one size. */ +#define DEFINE(Bits) \ + [SHT_SYMTAB] = { ELF_T_SYM, sizeof (ElfW2(Bits,Sym)) \ + AL (__alignof__ (ElfW2(Bits,Sym))) }, \ + [SHT_RELA] = { ELF_T_RELA, sizeof (ElfW2(Bits,Rela)) \ + AL (__alignof__ (ElfW2(Bits,Rela))) }, \ + [SHT_HASH] = { ELF_T_WORD, sizeof (ElfW2(Bits,Word)) \ + AL (__alignof__ (ElfW2(Bits,Word))) }, \ + [SHT_DYNAMIC] = { ELF_T_DYN, sizeof (ElfW2(Bits,Dyn)) \ + AL (__alignof__ (ElfW2(Bits,Dyn))) }, \ + [SHT_REL] = { ELF_T_REL, sizeof (ElfW2(Bits,Rel)) \ + AL (__alignof__ (ElfW2(Bits,Rel))) }, \ + [SHT_DYNSYM] = { ELF_T_SYM, sizeof (ElfW2(Bits,Sym)) \ + AL (__alignof__ (ElfW2(Bits,Sym))) }, \ + [SHT_INIT_ARRAY] = { ELF_T_ADDR, sizeof (ElfW2(Bits,Addr)) \ + AL (__alignof__ (ElfW2(Bits,Addr))) }, \ + [SHT_FINI_ARRAY] = { ELF_T_ADDR, sizeof (ElfW2(Bits,Addr)) \ + AL (__alignof__ (ElfW2(Bits,Addr))) }, \ + [SHT_PREINIT_ARRAY] = { ELF_T_ADDR, sizeof (ElfW2(Bits,Addr)) \ + AL (__alignof__ (ElfW2(Bits,Addr))) }, \ + [SHT_GROUP] = { ELF_T_WORD, sizeof (Elf32_Word) \ + AL (__alignof__ (Elf32_Word)) }, \ + [SHT_SYMTAB_SHNDX] = { ELF_T_WORD, sizeof (Elf32_Word) \ + AL (__alignof__ (Elf32_Word)) }, \ + [TYPEIDX (SHT_GNU_verdef)] = { ELF_T_VDEF, 1 AL (1) }, \ + [TYPEIDX (SHT_GNU_verneed)] = { ELF_T_VNEED, \ + sizeof (ElfW2(Bits,Verneed)) \ + AL (__alignof__ (ElfW2(Bits,Verneed)))},\ + [TYPEIDX (SHT_GNU_versym)] = { ELF_T_HALF, sizeof (ElfW2(Bits,Versym)) \ + AL (__alignof__ (ElfW2(Bits,Versym))) }, \ + [TYPEIDX (SHT_SUNW_syminfo)] = { ELF_T_SYMINFO, \ + sizeof (ElfW2(Bits,Syminfo)) \ + AL(__alignof__ (ElfW2(Bits,Syminfo)))},\ + [TYPEIDX (SHT_SUNW_move)] = { ELF_T_MOVE, sizeof (ElfW2(Bits,Move)) \ + AL (__alignof__ (ElfW2(Bits,Move))) }, \ + [TYPEIDX (SHT_GNU_LIBLIST)] = { ELF_T_LIB, sizeof (ElfW2(Bits,Lib)) \ + AL (__alignof__ (ElfW2(Bits,Lib))) } + DEFINE (32) + }, + [ELFCLASS64 - 1] = + { + DEFINE (64) + } + } +}; + + +/* Convert the data in the current section. */ +static void +convert_data (Elf_Scn *scn, int version __attribute__ ((unused)), int eclass, + int data, size_t size, size_t type) +{ +#if ALLOW_ALIGNED + /* No need to compute the alignment requirement of the host. */ + const size_t align = 1; +#else +# if EV_NUM != 2 + size_t align = shtype_map[version - 1][eclass - 1][type].align; +# else + size_t align = shtype_map[0][eclass - 1][type].align; +# endif +#endif + + if (data == MY_ELFDATA) + { + if (ALLOW_ALIGNED + || (((size_t) ((char *) scn->rawdata_base)) & (align - 1)) == 0) + /* No need to copy, we can use the raw data. */ + scn->data_base = scn->rawdata_base; + else + { + scn->data_base = (char *) malloc (size); + if (scn->data_base == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + return; + } + + /* The copy will be appropriately aligned for direct access. */ + memcpy (scn->data_base, scn->rawdata_base, size); + } + } + else + { + xfct_t fp; + + scn->data_base = (char *) malloc (size); + if (scn->data_base == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + return; + } + + /* Get the conversion function. */ +#if EV_NUM != 2 + fp = __elf_xfctstom[version - 1][__libelf_version - 1][eclass - 1][type]; +#else + fp = __elf_xfctstom[0][0][eclass - 1][type]; +#endif + + fp (scn->data_base, scn->rawdata_base, size, 0); + } + + scn->data_list.data.d.d_buf = scn->data_base; + scn->data_list.data.d.d_size = size; + scn->data_list.data.d.d_type = type; + scn->data_list.data.d.d_off = scn->rawdata.d.d_off; + scn->data_list.data.d.d_align = scn->rawdata.d.d_align; + scn->data_list.data.d.d_version = scn->rawdata.d.d_version; + + scn->data_list.data.s = scn; +} + + +/* Store the information for the raw data in the `rawdata' element. */ +int +internal_function_def +__libelf_set_rawdata (Elf_Scn *scn) +{ + size_t offset; + size_t size; + size_t align; + int type; + Elf *elf = scn->elf; + + if (elf->class == ELFCLASS32) + { + Elf32_Shdr *shdr = scn->shdr.e32 ?: INTUSE(elf32_getshdr) (scn); + + if (shdr == NULL) + /* Something went terribly wrong. */ + return 1; + + offset = shdr->sh_offset; + size = shdr->sh_size; + type = shdr->sh_type; + align = shdr->sh_addralign; + } + else + { + Elf64_Shdr *shdr = scn->shdr.e64 ?: INTUSE(elf64_getshdr) (scn); + + if (shdr == NULL) + /* Something went terribly wrong. */ + return 1; + + offset = shdr->sh_offset; + size = shdr->sh_size; + type = shdr->sh_type; + align = shdr->sh_addralign; + } + + /* If the section has no data (for whatever reason), leave the `d_buf' + pointer NULL. */ + if (size != 0 && type != SHT_NOBITS) + { + /* First a test whether the section is valid at all. */ + size_t entsize; + + if (type == SHT_HASH) + { + GElf_Ehdr ehdr_mem; + + entsize = SH_ENTSIZE_HASH (INTUSE(gelf_getehdr) (elf, &ehdr_mem)); + } + else + { +#if EV_NUM != 2 + entsize = shtype_map[__libelf_version - 1][elf->class - 1][TYPEIDX (type)].size; +#else + entsize = shtype_map[0][elf->class - 1][TYPEIDX (type)].size; +#endif + } + + /* We assume it is an array of bytes if it is none of the structured + sections we know of. */ + if (entsize == 0) + entsize = 1; + + if (size % entsize != 0) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + return 1; + } + + /* We can use the mapped or loaded data if available. */ + if (elf->map_address != NULL) + { + /* First see whether the information in the section header is + valid and it does not ask for too much. */ + if (offset + size > elf->maximum_size) + { + /* Something is wrong. */ + __libelf_seterrno (ELF_E_INVALID_SECTION_HEADER); + return 1; + } + + scn->rawdata_base = scn->rawdata.d.d_buf + = (char *) elf->map_address + elf->start_offset + offset; + } + else if (elf->fildes != -1) + { + /* We have to read the data from the file. Allocate the needed + memory. */ + scn->rawdata_base = scn->rawdata.d.d_buf + = (char *) malloc (size); + if (scn->rawdata.d.d_buf == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + return 1; + } + + if ((size_t) pread (elf->fildes, scn->rawdata.d.d_buf, size, + elf->start_offset + offset) != size) + { + /* Cannot read the data. */ + free (scn->rawdata.d.d_buf); + scn->rawdata_base = scn->rawdata.d.d_buf = NULL; + __libelf_seterrno (ELF_E_READ_ERROR); + return 1; + } + } + else + { + /* The file descriptor is already closed, we cannot get the data + anymore. */ + __libelf_seterrno (ELF_E_FD_DISABLED); + return 1; + } + } + + scn->rawdata.d.d_size = size; + /* Some broken ELF ABI for 64-bit machines use the wrong hash table + entry size. See elf-knowledge.h for more information. */ + if (type == SHT_HASH && elf->class == ELFCLASS64) + { + GElf_Ehdr ehdr_mem; + + scn->rawdata.d.d_type + = (SH_ENTSIZE_HASH (INTUSE(gelf_getehdr) (elf, &ehdr_mem)) + == 4 ? ELF_T_WORD : ELF_T_XWORD); + } + else + { +#if EV_NUM != 2 + scn->rawdata.d.d_type = + shtype_map[__libelf_version - 1][elf->class - 1][TYPEIDX (type)].type; +#else + scn->rawdata.d.d_type = + shtype_map[0][elf->class - 1][TYPEIDX (type)].type; +#endif + } + scn->rawdata.d.d_off = 0; + scn->rawdata.d.d_align = align; + if (elf->class == ELFCLASS32 + || (offsetof (struct Elf, state.elf32.ehdr) + == offsetof (struct Elf, state.elf64.ehdr))) + scn->rawdata.d.d_version = + elf->state.elf32.ehdr->e_ident[EI_VERSION]; + else + scn->rawdata.d.d_version = + elf->state.elf64.ehdr->e_ident[EI_VERSION]; + + scn->rawdata.s = scn; + + scn->data_read = 1; + + /* We actually read data from the file. At least we tried. */ + scn->flags |= ELF_F_FILEDATA; + + return 0; +} + + +Elf_Data * +elf_getdata (scn, data) + Elf_Scn *scn; + Elf_Data *data; +{ + Elf_Data *result = NULL; + Elf *elf; + + if (scn == NULL) + return NULL; + + if (unlikely (scn->elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* We will need this multiple times later on. */ + elf = scn->elf; + + rwlock_rdlock (elf->lock); + + /* If `data' is not NULL this means we are not addressing the initial + data in the file. But this also means this data is already read + (since otherwise it is not possible to have a valid `data' pointer) + and all the data structures are initialized as well. In this case + we can simply walk the list of data records. */ + if (data != NULL) + { + Elf_Data_List *runp; + + /* It is not possible that if DATA is not NULL the first entry is + returned. But this also means that there must be a first data + entry. */ + if (scn->data_list_rear == NULL + /* The section the reference data is for must match the section + parameter. */ + || unlikely (((Elf_Data_Scn *) data)->s != scn)) + { + __libelf_seterrno (ELF_E_DATA_MISMATCH); + goto out; + } + + /* We start searching with the first entry. */ + runp = &scn->data_list; + + while (1) + { + /* If `data' does not match any known record punt. */ + if (runp == NULL) + { + __libelf_seterrno (ELF_E_DATA_MISMATCH); + goto out; + } + + if (&runp->data.d == data) + /* Found the entry. */ + break; + + runp = runp->next; + } + + /* Return the data for the next data record. */ + result = runp->next ? &runp->next->data.d : NULL; + goto out; + } + + /* If the data for this section was not yet initialized do it now. */ + if (scn->data_read == 0) + { + /* We cannot acquire a write lock while we are holding a read + lock. Therefore give up the read lock and then get the write + lock. But this means that the data could meanwhile be + modified, therefore start the tests again. */ + rwlock_unlock (elf->lock); + rwlock_wrlock (elf->lock); + + /* Read the data from the file. There is always a file (or + memory region) associated with this descriptor since + otherwise the `data_read' flag would be set. */ + if (scn->data_read == 0 && __libelf_set_rawdata (scn) != 0) + /* Something went wrong. The error value is already set. */ + goto out; + } + + /* At this point we know the raw data is available. But it might be + empty in case the section has size zero (for whatever reason). + Now create the converted data in case this is necessary. */ + if (scn->data_list_rear == NULL) + { + if (scn->rawdata.d.d_buf != NULL && scn->rawdata.d.d_size > 0) + /* Convert according to the version and the type. */ + convert_data (scn, __libelf_version, elf->class, + (elf->class == ELFCLASS32 + || (offsetof (struct Elf, state.elf32.ehdr) + == offsetof (struct Elf, state.elf64.ehdr)) + ? elf->state.elf32.ehdr->e_ident[EI_DATA] + : elf->state.elf64.ehdr->e_ident[EI_DATA]), + scn->rawdata.d.d_size, scn->rawdata.d.d_type); + else + /* This is an empty or NOBITS section. There is no buffer but + the size information etc is important. */ + scn->data_list.data.d = scn->rawdata.d; + + scn->data_list_rear = &scn->data_list; + } + + /* If no data is present we cannot return any. */ + if (scn->data_list_rear != NULL) + /* Return the first data element in the list. */ + result = &scn->data_list.data.d; + + out: + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elf_getdata) diff --git a/libelf/elf_getident.c b/libelf/elf_getident.c new file mode 100644 index 0000000..b673b5c --- /dev/null +++ b/libelf/elf_getident.c @@ -0,0 +1,51 @@ +/* Retrieve file identification data. + Copyright (C) 1998, 1999, 2000, 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include "libelfP.h" + + +char * +elf_getident (elf, ptr) + Elf *elf; + size_t *ptr; +{ + /* In case this is no ELF file, the handle is invalid and we return + NULL. */ + if (elf == NULL || elf->kind != ELF_K_ELF) + { + if (ptr != NULL) + *ptr = 0; + return NULL; + } + + /* We already read the ELF header. Return a pointer to it and store + the length in *PTR. */ + if (ptr != NULL) + *ptr = EI_NIDENT; + + return (char *) (elf->class == ELFCLASS32 + || (offsetof (struct Elf, state.elf32.ehdr) + == offsetof (struct Elf, state.elf64.ehdr)) + ? elf->state.elf32.ehdr->e_ident + : elf->state.elf64.ehdr->e_ident); +} diff --git a/libelf/elf_getscn.c b/libelf/elf_getscn.c new file mode 100644 index 0000000..a6b4767 --- /dev/null +++ b/libelf/elf_getscn.c @@ -0,0 +1,77 @@ +/* Get section at specific index. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +Elf_Scn * +elf_getscn (elf, idx) + Elf *elf; + size_t idx; +{ + if (elf == NULL) + return NULL; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + rwlock_rdlock (elf->lock); + + Elf_Scn *result = NULL; + + /* Find the section in the list. */ + Elf_ScnList *runp = (elf->class == ELFCLASS32 + || (offsetof (struct Elf, state.elf32.scns) + == offsetof (struct Elf, state.elf64.scns)) + ? &elf->state.elf32.scns : &elf->state.elf64.scns); + while (1) + { + if (idx < runp->max) + { + if (idx < runp->cnt) + result = &runp->data[idx]; + else + __libelf_seterrno (ELF_E_INVALID_INDEX); + break; + } + + idx -= runp->max; + + runp = runp->next; + if (runp == NULL) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + break; + } + } + + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elf_getscn) diff --git a/libelf/elf_getshnum.c b/libelf/elf_getshnum.c new file mode 100644 index 0000000..52d6a05 --- /dev/null +++ b/libelf/elf_getshnum.c @@ -0,0 +1,64 @@ +/* Return number of sections in the ELF file. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +elf_getshnum (elf, dst) + Elf *elf; + size_t *dst; +{ + int result = 0; + int idx; + + if (elf == NULL) + return -1; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return -1; + } + + rwlock_rdlock (elf->lock); + + idx = elf->state.elf.scns_last->cnt; + if (idx != 0 + || (elf->state.elf.scns_last + != (elf->class == ELFCLASS32 + || (offsetof (Elf, state.elf32.scns) + == offsetof (Elf, state.elf64.scns)) + ? &elf->state.elf32.scns : &elf->state.elf64.scns))) + /* There is at least one section. */ + *dst = 1 + elf->state.elf.scns_last->data[idx - 1].index; + else + *dst = 0; + + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elf_getshnum) diff --git a/libelf/elf_getshstrndx.c b/libelf/elf_getshstrndx.c new file mode 100644 index 0000000..706092b --- /dev/null +++ b/libelf/elf_getshstrndx.c @@ -0,0 +1,168 @@ +/* Return section index of section header string table. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include "libelfP.h" +#include "common.h" + + +int +elf_getshstrndx (elf, dst) + Elf *elf; + size_t *dst; +{ + int result = 0; + + if (elf == NULL) + return -1; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return -1; + } + + rwlock_rdlock (elf->lock); + + /* We rely here on the fact that the `elf' element is a common prefix + of `elf32' and `elf64'. */ + assert (offsetof (struct Elf, state.elf.ehdr) + == offsetof (struct Elf, state.elf32.ehdr)); + assert (sizeof (elf->state.elf.ehdr) + == sizeof (elf->state.elf32.ehdr)); + assert (offsetof (struct Elf, state.elf.ehdr) + == offsetof (struct Elf, state.elf64.ehdr)); + assert (sizeof (elf->state.elf.ehdr) + == sizeof (elf->state.elf64.ehdr)); + + if (unlikely (elf->state.elf.ehdr == NULL)) + { + __libelf_seterrno (ELF_E_WRONG_ORDER_EHDR); + result = -1; + } + else + { + Elf32_Word num; + + num = (elf->class == ELFCLASS32 + ? elf->state.elf32.ehdr->e_shstrndx + : elf->state.elf64.ehdr->e_shstrndx); + + /* Determine whether the index is too big to fit in the ELF + header. */ + if (unlikely (num == SHN_XINDEX)) + { + /* Yes. Search the zeroth section header. */ + if (elf->class == ELFCLASS32) + { + size_t offset; + + if (elf->state.elf32.scns.data[0].shdr.e32 != NULL) + { + num = elf->state.elf32.scns.data[0].shdr.e32->sh_link; + goto success; + } + + offset = elf->state.elf32.ehdr->e_shoff; + + if (elf->map_address != NULL + && elf->state.elf32.ehdr->e_ident[EI_DATA] == MY_ELFDATA + && (ALLOW_UNALIGNED + || (((size_t) ((char *) elf->map_address + offset)) + & (__alignof__ (Elf32_Shdr) - 1)) == 0)) + /* We can directly access the memory. */ + num = ((Elf32_Shdr *) (elf->map_address + offset))->sh_link; + else + { + /* We avoid reading in all the section headers. Just read + the first one. */ + Elf32_Shdr shdr_mem; + + if (pread (elf->fildes, &shdr_mem, sizeof (Elf32_Shdr), + offset) != sizeof (Elf32_Shdr)) + { + /* We must be able to read this ELF section header. */ + __libelf_seterrno (ELF_E_INVALID_FILE); + result = -1; + goto out; + } + + if (elf->state.elf32.ehdr->e_ident[EI_DATA] != MY_ELFDATA) + CONVERT (shdr_mem.sh_link); + num = shdr_mem.sh_link; + } + } + else + { + size_t offset; + + if (elf->state.elf64.scns.data[0].shdr.e64 != NULL) + { + num = elf->state.elf64.scns.data[0].shdr.e64->sh_link; + goto success; + } + + offset = elf->state.elf64.ehdr->e_shoff; + + if (elf->map_address != NULL + && elf->state.elf64.ehdr->e_ident[EI_DATA] == MY_ELFDATA + && (ALLOW_UNALIGNED + || (((size_t) ((char *) elf->map_address + offset)) + & (__alignof__ (Elf64_Shdr) - 1)) == 0)) + /* We can directly access the memory. */ + num = ((Elf64_Shdr *) (elf->map_address + offset))->sh_link; + else + { + /* We avoid reading in all the section headers. Just read + the first one. */ + Elf64_Shdr shdr_mem; + + if (pread (elf->fildes, &shdr_mem, sizeof (Elf64_Shdr), + offset) != sizeof (Elf64_Shdr)) + { + /* We must be able to read this ELF section header. */ + __libelf_seterrno (ELF_E_INVALID_FILE); + result = -1; + goto out; + } + + if (elf->state.elf64.ehdr->e_ident[EI_DATA] != MY_ELFDATA) + CONVERT (shdr_mem.sh_link); + num = shdr_mem.sh_link; + } + } + } + + /* Store the result. */ + success: + *dst = num; + } + + out: + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elf_getshstrndx) diff --git a/libelf/elf_hash.c b/libelf/elf_hash.c new file mode 100644 index 0000000..38f4ae0 --- /dev/null +++ b/libelf/elf_hash.c @@ -0,0 +1,33 @@ +/* Hash function used in ELF implementations. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +/* Get the implementation. */ +#include + +unsigned long int +elf_hash (string) + const char *string; +{ + return _dl_elf_hash (string); +} +INTDEF(elf_hash) diff --git a/libelf/elf_kind.c b/libelf/elf_kind.c new file mode 100644 index 0000000..a67ebe7 --- /dev/null +++ b/libelf/elf_kind.c @@ -0,0 +1,33 @@ +/* Return the kind of file associated with the descriptor. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +Elf_Kind +elf_kind (elf) + Elf *elf; +{ + return elf == NULL ? ELF_K_NONE : elf->kind; +} diff --git a/libelf/elf_memory.c b/libelf/elf_memory.c new file mode 100644 index 0000000..57221f9 --- /dev/null +++ b/libelf/elf_memory.c @@ -0,0 +1,40 @@ +/* Create descriptor for memory region. + Copyright (C) 1999, 2000, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +Elf * +elf_memory (image, size) + char *image; + size_t size; +{ + if (image == NULL) + { + __libelf_seterrno (ELF_E_INVALID_OPERAND); + return NULL; + } + + return __libelf_read_mmaped_file (-1, image, 0, size, ELF_C_READ, NULL); +} diff --git a/libelf/elf_ndxscn.c b/libelf/elf_ndxscn.c new file mode 100644 index 0000000..edd6bda --- /dev/null +++ b/libelf/elf_ndxscn.c @@ -0,0 +1,36 @@ +/* Get index of section. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +size_t +elf_ndxscn (scn) + Elf_Scn *scn; +{ + if (scn == NULL) + return SHN_UNDEF; + + return scn->index; +} diff --git a/libelf/elf_newdata.c b/libelf/elf_newdata.c new file mode 100644 index 0000000..bae3b3f --- /dev/null +++ b/libelf/elf_newdata.c @@ -0,0 +1,97 @@ +/* Create new, empty section data. + Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +Elf_Data * +elf_newdata (Elf_Scn *scn) +{ + Elf_Data_List *result = NULL; + + if (scn == NULL) + return NULL; + + if (unlikely (scn->index == 0)) + { + /* It is not allowed to add something to the 0th section. */ + __libelf_seterrno (ELF_E_NOT_NUL_SECTION); + return NULL; + } + + if (scn->elf->class == ELFCLASS32 + || (offsetof (struct Elf, state.elf32.ehdr) + == offsetof (struct Elf, state.elf64.ehdr)) + ? scn->elf->state.elf32.ehdr == NULL + : scn->elf->state.elf64.ehdr == NULL) + { + __libelf_seterrno (ELF_E_WRONG_ORDER_EHDR); + return NULL; + } + + rwlock_wrlock (scn->elf->lock); + + if (scn->data_read && scn->data_list_rear == NULL) + { + /* This means the section was created by the user and this is the + first data. */ + result = &scn->data_list; + result->flags = ELF_F_DIRTY; + } + else + { + /* Create a new, empty data descriptor. */ + result = (Elf_Data_List *) calloc (1, sizeof (Elf_Data_List)); + if (result == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + goto out; + } + + result->flags = ELF_F_DIRTY | ELF_F_MALLOCED; + + if (scn->data_list_rear == NULL) + /* We create new data without reading/converting the data from the + file. That is fine but we have to remember this. */ + scn->data_list_rear = &scn->data_list; + } + + /* Set the predefined values. */ + result->data.d.d_version = __libelf_version; + + result->data.s = scn; + + /* Add to the end of the list. */ + if (scn->data_list_rear != NULL) + scn->data_list_rear->next = result; + + scn->data_list_rear = result; + + out: + rwlock_unlock (scn->elf->lock); + + /* Please note that the following is thread safe and is also defined + for RESULT == NULL since it still return NULL. */ + return &result->data.d; +} diff --git a/libelf/elf_newscn.c b/libelf/elf_newscn.c new file mode 100644 index 0000000..f3ea0d8 --- /dev/null +++ b/libelf/elf_newscn.c @@ -0,0 +1,143 @@ +/* Append new section. + Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include + +#include "libelfP.h" + + +Elf_Scn * +elf_newscn (elf) + Elf *elf; +{ + Elf_Scn *result = NULL; + bool first = false; + + if (elf == NULL) + return NULL; + + /* We rely on the prefix of the `elf', `elf32', and `elf64' element + being the same. */ + assert (offsetof (Elf, state.elf.scns_last) + == offsetof (Elf, state.elf32.scns_last)); + assert (offsetof (Elf, state.elf.scns_last) + == offsetof (Elf, state.elf64.scns_last)); + assert (offsetof (Elf, state.elf32.scns) + == offsetof (Elf, state.elf64.scns)); + + rwlock_wrlock (elf->lock); + + again: + if (elf->state.elf.scns_last->cnt < elf->state.elf.scns_last->max) + { + result = &elf->state.elf.scns_last->data[elf->state.elf.scns_last->cnt]; + + if (++elf->state.elf.scns_last->cnt == 1 + && (elf->state.elf.scns_last + == (elf->class == ELFCLASS32 + || (offsetof (Elf, state.elf32.scns) + == offsetof (Elf, state.elf64.scns)) + ? &elf->state.elf32.scns : &elf->state.elf64.scns))) + /* This is zeroth section. */ + first = true; + else + { + assert (elf->state.elf.scns_last->cnt > 1); + result->index = result[-1].index + 1; + } + } + else + { + /* We must allocate a new element. */ + Elf_ScnList *newp; + + assert (elf->state.elf.scnincr > 0); + + newp = (Elf_ScnList *) calloc (sizeof (Elf_ScnList) + + ((elf->state.elf.scnincr *= 2) + * sizeof (Elf_Scn)), 1); + if (newp == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + goto out; + } + + result = &newp->data[0]; + + /* One section used. */ + ++newp->cnt; + + /* This is the number of sections we allocated. */ + newp->max = elf->state.elf.scnincr; + + /* Remember the index for the first section in this block. */ + newp->data[0].index + = 1 + elf->state.elf.scns_last->data[elf->state.elf.scns_last->max - 1].index; + + /* Enqueue the new list element. */ + elf->state.elf.scns_last = elf->state.elf.scns_last->next = newp; + } + + /* Create a section header for this section. */ + if (elf->class == ELFCLASS32) + { + result->shdr.e32 = (Elf32_Shdr *) calloc (1, sizeof (Elf32_Shdr)); + if (result->shdr.e32 == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + goto out; + } + } + else + { + result->shdr.e64 = (Elf64_Shdr *) calloc (1, sizeof (Elf64_Shdr)); + if (result->shdr.e64 == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + goto out; + } + } + + result->elf = elf; + result->shdr_flags = ELF_F_DIRTY | ELF_F_MALLOCED; + result->list = elf->state.elf.scns_last; + + /* Initialize the data part. */ + result->data_read = 1; + if (unlikely (first)) + { + /* For the first section we mark the data as already available. */ + //result->data_list_rear = &result->data_list; + first = false; + goto again; + } + + result->flags |= ELF_F_DIRTY; + + out: + rwlock_unlock (elf->lock); + + return result; +} diff --git a/libelf/elf_next.c b/libelf/elf_next.c new file mode 100644 index 0000000..58a0775 --- /dev/null +++ b/libelf/elf_next.c @@ -0,0 +1,53 @@ +/* Advance in archive to next element. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +Elf_Cmd +elf_next (elf) + Elf *elf; +{ + Elf *parent; + + /* Be gratious, the specs demand it. */ + if (elf == NULL || elf->parent == NULL) + return ELF_C_NULL; + + /* We can be sure the parent is an archive. */ + parent = elf->parent; + assert (parent->kind == ELF_K_AR); + + /* Now advance the offset. */ + parent->state.ar.offset += (sizeof (struct ar_hdr) + + ((parent->state.ar.elf_ar_hdr.ar_size + 1) + & ~1l)); + + /* Get the next archive header. */ + if (__libelf_next_arhdr (parent) != 0) + return ELF_C_NULL; + + return elf->cmd; +} diff --git a/libelf/elf_nextscn.c b/libelf/elf_nextscn.c new file mode 100644 index 0000000..de9df64 --- /dev/null +++ b/libelf/elf_nextscn.c @@ -0,0 +1,77 @@ +/* Get next section. + Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +Elf_Scn * +elf_nextscn (elf, scn) + Elf *elf; + Elf_Scn *scn; +{ + Elf_Scn *result = NULL; + + if (elf == NULL) + return NULL; + + rwlock_rdlock (elf->lock); + + if (scn == NULL) + { + /* If no section handle is given return the first (not 0th) section. */ + if (elf->class == ELFCLASS32 + || (offsetof (Elf, state.elf32.scns) + == offsetof (Elf, state.elf64.scns))) + { + if (elf->state.elf32.scns.cnt > 1) + result = &elf->state.elf32.scns.data[1]; + } + else + { + if (elf->state.elf64.scns.cnt > 1) + result = &elf->state.elf64.scns.data[1]; + } + } + else + { + Elf_ScnList *list = scn->list; + + if (scn + 1 < &list->data[list->cnt]) + result = scn + 1; + else if (scn + 1 == &list->data[list->max] + && (list = list->next) != NULL) + { + /* If there is another element in the section list it must + have at least one entry. */ + assert (list->cnt > 0); + result = &list->data[0]; + } + } + + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elf_nextscn) diff --git a/libelf/elf_rand.c b/libelf/elf_rand.c new file mode 100644 index 0000000..76c3862 --- /dev/null +++ b/libelf/elf_rand.c @@ -0,0 +1,49 @@ +/* Select specific element in archive. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +size_t +elf_rand (elf, offset) + Elf *elf; + size_t offset; +{ + /* Be gratious, the specs demand it. */ + if (elf == NULL || elf->kind != ELF_K_AR) + return 0; + + /* Save the old offset and set the offset. */ + elf->state.ar.offset = elf->start_offset + offset; + + /* Get the next archive header. */ + if (__libelf_next_arhdr (elf) != 0) + { + /* Mark the archive header as unusable. */ + elf->state.ar.elf_ar_hdr.ar_name = NULL; + return 0; + } + + return offset; +} diff --git a/libelf/elf_rawdata.c b/libelf/elf_rawdata.c new file mode 100644 index 0000000..547c37f --- /dev/null +++ b/libelf/elf_rawdata.c @@ -0,0 +1,66 @@ +/* Return raw section content. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include "libelfP.h" + + +Elf_Data * +elf_rawdata (scn, data) + Elf_Scn *scn; + Elf_Data *data; +{ + if (scn == NULL || scn->elf->kind != ELF_K_ELF) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* If `data' is not NULL this means we are not addressing the initial + data in the file. But this also means this data is already read + (since otherwise it is not possible to have a valid `data' pointer) + and all the data structures are initialized as well. In this case + we can simply walk the list of data records. */ + if (data != NULL + || (scn->data_read != 0 && (scn->flags & ELF_F_FILEDATA) == 0)) + { + /* We don't allow accessing any but the data read from the file + as raw. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return NULL; + } + + /* If the data for this section was not yet initialized do it now. */ + if (scn->data_read == 0) + { + /* First thing we do is to read the data from the file. There is + always a file (or memory region) associated with this descriptor + since otherwise the `data_read' flag would be set. */ + if (__libelf_set_rawdata (scn) != 0) + /* Something went wrong. The error value is already set. */ + return NULL; + } + + /* Return the first data element in the list. */ + return &scn->rawdata.d; +} +INTDEF(elf_rawdata) diff --git a/libelf/elf_rawfile.c b/libelf/elf_rawfile.c new file mode 100644 index 0000000..3f6dc3c --- /dev/null +++ b/libelf/elf_rawfile.c @@ -0,0 +1,51 @@ +/* Retrieve uninterpreted file contents. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +char * +elf_rawfile (elf, ptr) + Elf *elf; + size_t *ptr; +{ + if (elf == NULL) + { + /* No valid descriptor. */ + __libelf_seterrno (ELF_E_INVALID_HANDLE); + error_out: + if (ptr != NULL) + *ptr = 0; + return NULL; + } + + /* If the file is not mmap'ed and not previously loaded, do it now. */ + if (elf->map_address == NULL && __libelf_readall (elf) == NULL) + goto error_out; + + if (ptr != NULL) + *ptr = elf->maximum_size; + + return (char *) elf->map_address + elf->start_offset; +} diff --git a/libelf/elf_readall.c b/libelf/elf_readall.c new file mode 100644 index 0000000..d36da27 --- /dev/null +++ b/libelf/elf_readall.c @@ -0,0 +1,116 @@ +/* Read all of the file associated with the descriptor. + Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include "libelfP.h" +#include "common.h" + + +static void +set_address (Elf *elf, size_t offset) +{ + if (elf->kind == ELF_K_AR) + { + Elf *child = elf->state.ar.children; + + while (child != NULL) + { + if (child->map_address == NULL) + { + child->map_address = elf->map_address; + child->start_offset -= offset; + if (child->kind == ELF_K_AR) + child->state.ar.offset -= offset; + + set_address (child, offset); + } + + child = child->next; + } + } +} + + +char * +__libelf_readall (elf) + Elf *elf; +{ + /* Get the file. */ + rwlock_wrlock (elf->lock); + + if (elf->map_address == NULL && unlikely (elf->fildes == -1)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + rwlock_unlock (elf->lock); + return NULL; + } + + /* If the file is not mmap'ed and not previously loaded, do it now. */ + if (elf->map_address == NULL) + { + char *mem; + + /* If this is an archive and we have derived descriptors get the + locks for all of them. */ + libelf_acquire_all (elf); + + /* Allocate all the memory we need. */ + mem = (char *) malloc (elf->maximum_size); + if (mem != NULL) + { + /* Read the file content. */ + if ((size_t) pread (elf->fildes, mem, elf->maximum_size, + elf->start_offset) != elf->maximum_size) + { + /* Something went wrong. */ + __libelf_seterrno (ELF_E_READ_ERROR); + free (mem); + } + else + { + /* Remember the address. */ + elf->map_address = mem; + + /* Also remember that we allocated the memory. */ + elf->flags |= ELF_F_MALLOCED; + + /* Propagate the information down to all children and + their children. */ + set_address (elf, elf->start_offset); + + /* Correct the own offsets. */ + if (elf->kind == ELF_K_AR) + elf->state.ar.offset -= elf->start_offset; + elf->start_offset = 0; + } + } + else + __libelf_seterrno (ELF_E_NOMEM); + + /* Free the locks on the children. */ + libelf_release_all (elf); + } + + rwlock_unlock (elf->lock); + + return (char *) elf->map_address; +} diff --git a/libelf/elf_strptr.c b/libelf/elf_strptr.c new file mode 100644 index 0000000..327adfd --- /dev/null +++ b/libelf/elf_strptr.c @@ -0,0 +1,122 @@ +/* Return string pointer from string section. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +char * +elf_strptr (elf, idx, offset) + Elf *elf; + size_t idx; + size_t offset; +{ + if (elf == NULL) + return NULL; + + if (elf->kind != ELF_K_ELF) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + rwlock_rdlock (elf->lock); + + char *result = NULL; + Elf_Scn *strscn; + + /* Find the section in the list. */ + Elf_ScnList *runp = (elf->class == ELFCLASS32 + || (offsetof (struct Elf, state.elf32.scns) + == offsetof (struct Elf, state.elf64.scns)) + ? &elf->state.elf32.scns : &elf->state.elf64.scns); + while (1) + { + if (idx < runp->max) + { + if (idx < runp->cnt) + strscn = &runp->data[idx]; + else + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + break; + } + + idx -= runp->max; + + runp = runp->next; + if (runp == NULL) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + } + + if (elf->class == ELFCLASS32) + { + if (unlikely (strscn->shdr.e32->sh_type != SHT_STRTAB)) + { + /* This is no string section. */ + __libelf_seterrno (ELF_E_INVALID_SECTION); + goto out; + } + + if (unlikely (offset >= strscn->shdr.e32->sh_size)) + { + /* The given offset is too big, it is beyond this section. */ + __libelf_seterrno (ELF_E_OFFSET_RANGE); + goto out; + } + } + else + { + if (unlikely (strscn->shdr.e64->sh_type != SHT_STRTAB)) + { + /* This is no string section. */ + __libelf_seterrno (ELF_E_INVALID_SECTION); + goto out; + } + + if (unlikely (offset >= strscn->shdr.e64->sh_size)) + { + /* The given offset is too big, it is beyond this section. */ + __libelf_seterrno (ELF_E_OFFSET_RANGE); + goto out; + } + } + + if (strscn->rawdata_base == NULL + /* Read the section data. */ + && __libelf_set_rawdata (strscn) != 0) + goto out; + + result = &strscn->rawdata_base[offset]; + + out: + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(elf_strptr) diff --git a/libelf/elf_update.c b/libelf/elf_update.c new file mode 100644 index 0000000..5d6c6b7 --- /dev/null +++ b/libelf/elf_update.c @@ -0,0 +1,178 @@ +/* Update data structures for changes and write them out. + Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + Contributed by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +static off_t +write_file (Elf *elf, off_t size, int change_bo, size_t shnum) +{ + int class = elf->class; + + /* Adjust the size in any case. We do this even if we use `write'. + We cannot do this if this file is in an archive. We also don't + do it *now* if we are shortening the file since this would + prevent programs to use the data of the file in generating the + new file. We truncate the file later in this case. */ + if (elf->parent == NULL + && (elf->maximum_size == ~((size_t) 0) + || (size_t) size > elf->maximum_size) + && unlikely (ftruncate (elf->fildes, size) != 0)) + { + __libelf_seterrno (ELF_E_WRITE_ERROR); + return -1; + } + + /* Try to map the file if this isn't done yet. */ + if (elf->map_address == NULL && elf->cmd == ELF_C_WRITE_MMAP) + { +#if _MUDFLAP + /* Mudflap doesn't grok that our mmap'd data is ok. */ +#else + elf->map_address = mmap (NULL, size, PROT_READ | PROT_WRITE, + MAP_SHARED, elf->fildes, 0); + if (unlikely (elf->map_address == MAP_FAILED)) + elf->map_address = NULL; +#endif + } + + if (elf->map_address != NULL) + { + /* The file is mmaped. */ + if ((class == ELFCLASS32 + ? __elf32_updatemmap (elf, change_bo, shnum) + : __elf64_updatemmap (elf, change_bo, shnum)) != 0) + /* Some problem while writing. */ + size = -1; + } + else + { + /* The file is not mmaped. */ + if ((class == ELFCLASS32 + ? __elf32_updatefile (elf, change_bo, shnum) + : __elf64_updatefile (elf, change_bo, shnum)) != 0) + /* Some problem while writing. */ + size = -1; + } + + if (size != -1 + && elf->parent == NULL + && elf->maximum_size != ~((size_t) 0) + && (size_t) size < elf->maximum_size + && unlikely (ftruncate (elf->fildes, size) != 0)) + { + __libelf_seterrno (ELF_E_WRITE_ERROR); + size = -1; + } + + if (size != -1 && elf->parent == NULL) + elf->maximum_size = size; + + return size; +} + + +off_t +elf_update (elf, cmd) + Elf *elf; + Elf_Cmd cmd; +{ + size_t shnum; + off_t size; + int change_bo = 0; + + if (cmd != ELF_C_NULL + && cmd != ELF_C_WRITE + && unlikely (cmd != ELF_C_WRITE_MMAP)) + { + __libelf_seterrno (ELF_E_INVALID_CMD); + return -1; + } + + if (elf == NULL) + return -1; + + if (elf->kind != ELF_K_ELF) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return -1; + } + + rwlock_wrlock (elf->lock); + + /* Make sure we have an ELF header. */ + if (elf->state.elf.ehdr == NULL) + { + __libelf_seterrno (ELF_E_WRONG_ORDER_EHDR); + size = -1; + goto out; + } + + /* Determine the number of sections. */ + shnum = (elf->state.elf.scns_last->cnt == 0 + ? 0 + : 1 + elf->state.elf.scns_last->data[elf->state.elf.scns_last->cnt - 1].index); + + /* Update the ELF descriptor. First, place the program header. It + will come right after the ELF header. The count the size of all + sections and finally place the section table. */ + size = (elf->class == ELFCLASS32 + ? __elf32_updatenull (elf, &change_bo, shnum) + : __elf64_updatenull (elf, &change_bo, shnum)); + if (likely (size != -1) + /* See whether we actually have to write out the data. */ + && (cmd == ELF_C_WRITE || cmd == ELF_C_WRITE_MMAP)) + { + if (elf->cmd != ELF_C_RDWR + && elf->cmd != ELF_C_RDWR_MMAP + && elf->cmd != ELF_C_WRITE + && unlikely (elf->cmd != ELF_C_WRITE_MMAP)) + { + __libelf_seterrno (ELF_E_UPDATE_RO); + size = -1; + } + else if (unlikely (elf->fildes == -1)) + { + /* We closed the file already. */ + __libelf_seterrno (ELF_E_FD_DISABLED); + size = -1; + } + else + { + if (elf->parent != NULL) + { + extern int puts (const char *); + puts ("this is an archive member"); + } + + size = write_file (elf, size, change_bo, shnum); + } + } + + out: + rwlock_unlock (elf->lock); + + return size; +} diff --git a/libelf/elf_version.c b/libelf/elf_version.c new file mode 100644 index 0000000..16bfce1 --- /dev/null +++ b/libelf/elf_version.c @@ -0,0 +1,58 @@ +/* Coordinate ELF library and application versions. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +/* Is the version initialized? */ +int __libelf_version_initialized; + +/* Currently selected version. */ +unsigned int __libelf_version = EV_CURRENT; + + +unsigned int +elf_version (version) + unsigned int version; +{ + if (version == EV_NONE) + return __libelf_version; + + if (likely (version < EV_NUM)) + { + /* Phew, we know this version. */ + unsigned int last_version = __libelf_version; + + /* Store the new version. */ + __libelf_version = version; + + /* Signal that the version is now initialized. */ + __libelf_version_initialized = 1; + + /* And return the last version. */ + return last_version; + } + + /* We cannot handle this version. */ + __libelf_seterrno (ELF_E_UNKNOWN_VERSION); + return EV_NONE; +} +INTDEF(elf_version) diff --git a/libelf/exttypes.h b/libelf/exttypes.h new file mode 100644 index 0000000..b6bde82 --- /dev/null +++ b/libelf/exttypes.h @@ -0,0 +1,86 @@ +/* External ELF types. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _EXTTYPES_H +#define _EXTTYPES_H 1 + +/* Integral types. */ +typedef char Elf32_Ext_Addr[ELF32_FSZ_ADDR]; +typedef char Elf32_Ext_Off[ELF32_FSZ_OFF]; +typedef char Elf32_Ext_Half[ELF32_FSZ_HALF]; +typedef char Elf32_Ext_Sword[ELF32_FSZ_SWORD]; +typedef char Elf32_Ext_Word[ELF32_FSZ_WORD]; +typedef char Elf32_Ext_Sxword[ELF32_FSZ_SXWORD]; +typedef char Elf32_Ext_Xword[ELF32_FSZ_XWORD]; + +typedef char Elf64_Ext_Addr[ELF64_FSZ_ADDR]; +typedef char Elf64_Ext_Off[ELF64_FSZ_OFF]; +typedef char Elf64_Ext_Half[ELF64_FSZ_HALF]; +typedef char Elf64_Ext_Sword[ELF64_FSZ_SWORD]; +typedef char Elf64_Ext_Word[ELF64_FSZ_WORD]; +typedef char Elf64_Ext_Sxword[ELF64_FSZ_SXWORD]; +typedef char Elf64_Ext_Xword[ELF64_FSZ_XWORD]; + + +/* Define the composed types. */ +#define START(Bits, Name, EName) typedef struct { +#define END(Bits, Name) } ElfW2(Bits, Name) +#define TYPE_NAME(Type, Name) Type Name; +#define TYPE_EXTRA(Text) Text +#define TYPE_XLATE(Text) + +/* Get the abstract definitions. */ +#include "abstract.h" + +/* And define the types. */ +Ehdr32 (Ext_); +Phdr32 (Ext_); +Shdr32 (Ext_); +Sym32 (Ext_); +Rel32 (Ext_); +Rela32 (Ext_); +Note32 (Ext_); +Dyn32 (Ext_); +Verdef32 (Ext_); +Verdaux32 (Ext_); +Verneed32 (Ext_); +Vernaux32 (Ext_); +Syminfo32 (Ext_); +Move32 (Ext_); + +Ehdr64 (Ext_); +Phdr64 (Ext_); +Shdr64 (Ext_); +Sym64 (Ext_); +Rel64 (Ext_); +Rela64 (Ext_); +Note64 (Ext_); +Dyn64 (Ext_); +Verdef64 (Ext_); +Verdaux64 (Ext_); +Verneed64 (Ext_); +Vernaux64 (Ext_); +Syminfo64 (Ext_); +Move64 (Ext_); + +#undef START +#undef END +#undef TYPE_NAME +#undef TYPE_EXTRA +#undef TYPE_XLATE + +#endif /* exttypes.h */ diff --git a/libelf/gelf.h b/libelf/gelf.h new file mode 100644 index 0000000..299d6c8 --- /dev/null +++ b/libelf/gelf.h @@ -0,0 +1,308 @@ +/* This file defines generic ELF types, structures, and macros. + Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _GELF_H +#define _GELF_H 1 + +#include + + +#ifdef __cplusplus +extern "C" { +#endif + +/* Class independent type definitions. Correctly speaking this is not + true. We assume that 64-bit binaries are the largest class and + therefore all other classes can be represented without loss. */ + +/* Type for a 16-bit quantity. */ +typedef Elf64_Half GElf_Half; + +/* Types for signed and unsigned 32-bit quantities. */ +typedef Elf64_Word GElf_Word; +typedef Elf64_Sword GElf_Sword; + +/* Types for signed and unsigned 64-bit quantities. */ +typedef Elf64_Xword GElf_Xword; +typedef Elf64_Sxword GElf_Sxword; + +/* Type of addresses. */ +typedef Elf64_Addr GElf_Addr; + +/* Type of file offsets. */ +typedef Elf64_Off GElf_Off; + + +/* The ELF file header. This appears at the start of every ELF file. */ +typedef Elf64_Ehdr GElf_Ehdr; + +/* Section header. */ +typedef Elf64_Shdr GElf_Shdr; + +/* Section index. */ +/* XXX This should probably be a larger type in preparation of times when + regular section indices can be larger. */ +typedef Elf64_Section GElf_Section; + +/* Symbol table entry. */ +typedef Elf64_Sym GElf_Sym; + +/* The syminfo section if available contains additional information about + every dynamic symbol. */ +typedef Elf64_Syminfo GElf_Syminfo; + +/* Relocation table entry without addend (in section of type SHT_REL). */ +typedef Elf64_Rel GElf_Rel; + +/* Relocation table entry with addend (in section of type SHT_RELA). */ +typedef Elf64_Rela GElf_Rela; + +/* Program segment header. */ +typedef Elf64_Phdr GElf_Phdr; + +/* Dynamic section entry. */ +typedef Elf64_Dyn GElf_Dyn; + + +/* Version definition sections. */ +typedef Elf64_Verdef GElf_Verdef; + +/* Auxialiary version information. */ +typedef Elf64_Verdaux GElf_Verdaux; + +/* Version dependency section. */ +typedef Elf64_Verneed GElf_Verneed; + +/* Auxiliary needed version information. */ +typedef Elf64_Vernaux GElf_Vernaux; + + +/* Type for version symbol information. */ +typedef Elf64_Versym GElf_Versym; + + +/* Auxiliary vector. */ +typedef Elf64_auxv_t GElf_auxv_t; + + +/* Note section contents. */ +typedef Elf64_Nhdr GElf_Nhdr; + + +/* Move structure. */ +typedef Elf64_Move GElf_Move; + + +/* Library list structure. */ +typedef Elf64_Lib GElf_Lib; + + +/* How to extract and insert information held in the st_info field. */ + +#define GELF_ST_BIND(val) ELF64_ST_BIND (val) +#define GELF_ST_TYPE(val) ELF64_ST_TYPE (val) +#define GELF_ST_INFO(bind, type) ELF64_ST_INFO (bind, type) + +/* How to extract information held in the st_other field. */ + +#define GELF_ST_VISIBILITY(val) ELF64_ST_VISIBILITY (val) + + +/* How to extract and insert information held in the r_info field. */ + +#define GELF_R_SYM(info) ELF64_R_SYM (info) +#define GELF_R_TYPE(info) ELF64_R_TYPE (info) +#define GELF_R_INFO(sym, type) ELF64_R_INFO (sym, type) + + +/* How to extract and insert information held in the m_info field. */ +#define GELF_M_SYM(info) ELF64_M_SYM (info) +#define GELF_M_SIZE(info) ELF64_M_SIZE (info) +#define GELF_M_INFO(sym, size) ELF64_M_INFO (sym, size) + + +/* Get class of the file associated with ELF. */ +extern int gelf_getclass (Elf *__elf); + + +/* Return size of array of COUNT elemeents of the type denoted by TYPE + in the external representation. The binary class is taken from ELF. + The result is based on version VERSION of the ELF standard. */ +extern size_t gelf_fsize (Elf *__elf, Elf_Type __type, size_t __count, + unsigned int __version); + +/* Retrieve object file header. */ +extern GElf_Ehdr *gelf_getehdr (Elf *__elf, GElf_Ehdr *__dest); + +/* Update the ELF header. */ +extern int gelf_update_ehdr (Elf *__elf, GElf_Ehdr *__src); + +/* Create new ELF header if none exists. */ +extern unsigned long int gelf_newehdr (Elf *__elf, int __class); + +/* Retrieve section header. */ +extern GElf_Shdr *gelf_getshdr (Elf_Scn *__scn, GElf_Shdr *__dst); + +/* Update section header. */ +extern int gelf_update_shdr (Elf_Scn *__scn, GElf_Shdr *__src); + +/* Retrieve program header table entry. */ +extern GElf_Phdr *gelf_getphdr (Elf *__elf, int __ndx, GElf_Phdr *__dst); + +/* Update the program header. */ +extern int gelf_update_phdr (Elf *__elf, int __ndx, GElf_Phdr *__src); + +/* Create new program header with PHNUM entries. */ +extern unsigned long int gelf_newphdr (Elf *__elf, size_t __phnum); + + +/* Convert data structure from the representation in the file represented + by ELF to their memory representation. */ +extern Elf_Data *gelf_xlatetom (Elf *__elf, Elf_Data *__dest, + const Elf_Data *__src, unsigned int __encode); + +/* Convert data structure from to the representation in memory + represented by ELF file representation. */ +extern Elf_Data *gelf_xlatetof (Elf *__elf, Elf_Data *__dest, + const Elf_Data *__src, unsigned int __encode); + + +/* Retrieve REL relocation info at the given index. */ +extern GElf_Rel *gelf_getrel (Elf_Data *__data, int __ndx, GElf_Rel *__dst); + +/* Retrieve RELA relocation info at the given index. */ +extern GElf_Rela *gelf_getrela (Elf_Data *__data, int __ndx, GElf_Rela *__dst); + +/* Update REL relocation information at given index. */ +extern int gelf_update_rel (Elf_Data *__dst, int __ndx, GElf_Rel *__src); + +/* Update RELA relocation information at given index. */ +extern int gelf_update_rela (Elf_Data *__dst, int __ndx, GElf_Rela *__src); + + +/* Retrieve symbol information from the symbol table at the given index. */ +extern GElf_Sym *gelf_getsym (Elf_Data *__data, int __ndx, GElf_Sym *__dst); + +/* Update symbol information in the symbol table at the given index. */ +extern int gelf_update_sym (Elf_Data *__data, int __ndx, GElf_Sym *__src); + + +/* Retrieve symbol information and separate section index from the + symbol table at the given index. */ +extern GElf_Sym *gelf_getsymshndx (Elf_Data *__symdata, Elf_Data *__shndxdata, + int __ndx, GElf_Sym *__sym, + Elf32_Word *__xshndx); + +/* Update symbol information and separate section index in the symbol + table at the given index. */ +extern int gelf_update_symshndx (Elf_Data *__symdata, Elf_Data *__shndxdata, + int __ndx, GElf_Sym *__sym, + Elf32_Word __xshndx); + + +/* Retrieve additional symbol information from the symbol table at the + given index. */ +extern GElf_Syminfo *gelf_getsyminfo (Elf_Data *__data, int __ndx, + GElf_Syminfo *__dst); + +/* Update additional symbol information in the symbol table at the + given index. */ +extern int gelf_update_syminfo (Elf_Data *__data, int __ndx, + GElf_Syminfo *__src); + + +/* Get information from dynamic table at the given index. */ +extern GElf_Dyn *gelf_getdyn (Elf_Data *__data, int __ndx, GElf_Dyn *__dst); + +/* Update information in dynamic table at the given index. */ +extern int gelf_update_dyn (Elf_Data *__dst, int __ndx, GElf_Dyn *__src); + + +/* Get move structure at the given index. */ +extern GElf_Move *gelf_getmove (Elf_Data *__data, int __ndx, GElf_Move *__dst); + +/* Update move structure at the given index. */ +extern int gelf_update_move (Elf_Data *__data, int __ndx, + GElf_Move *__src); + + +/* Get library from table at the given index. */ +extern GElf_Lib *gelf_getlib (Elf_Data *__data, int __ndx, GElf_Lib *__dst); + +/* Update library in table at the given index. */ +extern int gelf_update_lib (Elf_Data *__data, int __ndx, GElf_Lib *__src); + + + +/* Retrieve symbol version information at given index. */ +extern GElf_Versym *gelf_getversym (Elf_Data *__data, int __ndx, + GElf_Versym *__dst); + +/* Update symbol version information. */ +extern int gelf_update_versym (Elf_Data *__data, int __ndx, + GElf_Versym *__src); + + +/* Retrieve required symbol version information at given offset. */ +extern GElf_Verneed *gelf_getverneed (Elf_Data *__data, int __offset, + GElf_Verneed *__dst); + +/* Update required symbol version information. */ +extern int gelf_update_verneed (Elf_Data *__data, int __offset, + GElf_Verneed *__src); + +/* Retrieve additional required symbol version information at given offset. */ +extern GElf_Vernaux *gelf_getvernaux (Elf_Data *__data, int __offset, + GElf_Vernaux *__dst); + +/* Update additional required symbol version information. */ +extern int gelf_update_vernaux (Elf_Data *__data, int __offset, + GElf_Vernaux *__src); + + +/* Retrieve symbol version definition information at given offset. */ +extern GElf_Verdef *gelf_getverdef (Elf_Data *__data, int __offset, + GElf_Verdef *__dst); + +/* Update symbol version definition information. */ +extern int gelf_update_verdef (Elf_Data *__data, int __offset, + GElf_Verdef *__src); + +/* Retrieve additional symbol version definition information at given + offset. */ +extern GElf_Verdaux *gelf_getverdaux (Elf_Data *__data, int __offset, + GElf_Verdaux *__dst); + +/* Update additional symbol version definition information. */ +extern int gelf_update_verdaux (Elf_Data *__data, int __offset, + GElf_Verdaux *__src); + + +/* Retrieve uninterpreted chunk of the file contents. */ +extern char *gelf_rawchunk (Elf *__elf, GElf_Off __offset, GElf_Word __size); + +/* Release uninterpreted chunk of the file contents. */ +extern void gelf_freechunk (Elf *__elf, char *__ptr); + + +/* Compute simple checksum from permanent parts of the ELF file. */ +extern long int gelf_checksum (Elf *__elf); + +#ifdef __cplusplus +} +#endif + +#endif /* gelf.h */ diff --git a/libelf/gelf_checksum.c b/libelf/gelf_checksum.c new file mode 100644 index 0000000..bbd04df --- /dev/null +++ b/libelf/gelf_checksum.c @@ -0,0 +1,37 @@ +/* Convert from file to memory representation. Generic ELF version. + Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +long int +gelf_checksum (elf) + Elf *elf; +{ + if (elf == NULL) + return -1l; + + return (elf->class == ELFCLASS32 + ? INTUSE(elf32_checksum) (elf) : INTUSE(elf64_checksum) (elf)); +} diff --git a/libelf/gelf_freechunk.c b/libelf/gelf_freechunk.c new file mode 100644 index 0000000..c47ec9a --- /dev/null +++ b/libelf/gelf_freechunk.c @@ -0,0 +1,45 @@ +/* Release uninterpreted chunk of the file contents. + Copyright (C) 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 2002. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +void +gelf_freechunk (elf, ptr) + Elf *elf; + char *ptr; +{ + if (elf == NULL) + /* No valid descriptor. */ + return; + + /* We do not have to do anything if the pointer returned by + gelf_rawchunk points into the memory allocated for the ELF + descriptor. */ + if (ptr < (char *) elf->map_address + elf->start_offset + || ptr >= ((char *) elf->map_address + elf->start_offset + + elf->maximum_size)) + free (ptr); +} diff --git a/libelf/gelf_fsize.c b/libelf/gelf_fsize.c new file mode 100644 index 0000000..0432ba0 --- /dev/null +++ b/libelf/gelf_fsize.c @@ -0,0 +1,96 @@ +/* Return the size of an object file type. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +/* These are the sizes for all the known types. */ +const size_t __libelf_type_sizes[EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] = +{ + /* We have no entry for EV_NONE siince we have to set an error. */ + [EV_CURRENT - 1] = { + [ELFCLASS32 - 1] = { +#define TYPE_SIZES(LIBELFBITS) \ + [ELF_T_ADDR] = ELFW2(LIBELFBITS, FSZ_ADDR), \ + [ELF_T_OFF] = ELFW2(LIBELFBITS, FSZ_OFF), \ + [ELF_T_BYTE] = 1, \ + [ELF_T_HALF] = ELFW2(LIBELFBITS, FSZ_HALF), \ + [ELF_T_WORD] = ELFW2(LIBELFBITS, FSZ_WORD), \ + [ELF_T_SWORD] = ELFW2(LIBELFBITS, FSZ_SWORD), \ + [ELF_T_XWORD] = ELFW2(LIBELFBITS, FSZ_XWORD), \ + [ELF_T_SXWORD] = ELFW2(LIBELFBITS, FSZ_SXWORD), \ + [ELF_T_EHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Ehdr)), \ + [ELF_T_SHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Shdr)), \ + [ELF_T_SYM] = sizeof (ElfW2(LIBELFBITS, Ext_Sym)), \ + [ELF_T_REL] = sizeof (ElfW2(LIBELFBITS, Ext_Rel)), \ + [ELF_T_RELA] = sizeof (ElfW2(LIBELFBITS, Ext_Rela)), \ + [ELF_T_PHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Phdr)), \ + [ELF_T_DYN] = sizeof (ElfW2(LIBELFBITS, Ext_Dyn)), \ + [ELF_T_VDEF] = sizeof (ElfW2(LIBELFBITS, Ext_Verdef)), \ + [ELF_T_VDAUX] = sizeof (ElfW2(LIBELFBITS, Ext_Verdaux)), \ + [ELF_T_VNEED] = sizeof (ElfW2(LIBELFBITS, Ext_Verneed)), \ + [ELF_T_VNAUX] = sizeof (ElfW2(LIBELFBITS, Ext_Vernaux)), \ + [ELF_T_NHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Nhdr)), \ + [ELF_T_SYMINFO] = sizeof (ElfW2(LIBELFBITS, Ext_Syminfo)), \ + [ELF_T_MOVE] = sizeof (ElfW2(LIBELFBITS, Ext_Move)) + TYPE_SIZES (32) + }, + [ELFCLASS64 - 1] = { + TYPE_SIZES (64) + } + } +}; + + +size_t +gelf_fsize (elf, type, count, version) + Elf *elf; + Elf_Type type; + size_t count; + unsigned int version; +{ + /* We do not have differences between file and memory sizes. Better + not since otherwise `mmap' would not work. */ + if (elf == NULL) + return 0; + + if (version == EV_NONE || version >= EV_NUM) + { + __libelf_seterrno (ELF_E_UNKNOWN_VERSION); + return 0; + } + + if (type >= ELF_T_NUM) + { + __libelf_seterrno (ELF_E_UNKNOWN_TYPE); + return 0; + } + +#if EV_NUM != 2 + return count * __libelf_type_sizes[version - 1][elf->class - 1][type]; +#else + return count * __libelf_type_sizes[0][elf->class - 1][type]; +#endif +} +INTDEF(gelf_fsize) diff --git a/libelf/gelf_getclass.c b/libelf/gelf_getclass.c new file mode 100644 index 0000000..2ae1b32 --- /dev/null +++ b/libelf/gelf_getclass.c @@ -0,0 +1,33 @@ +/* Return the class of file associated with the descriptor. + Copyright (C) 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +int +gelf_getclass (elf) + Elf *elf; +{ + return elf == NULL || elf->kind != ELF_K_ELF ? ELFCLASSNONE : elf->class; +} diff --git a/libelf/gelf_getdyn.c b/libelf/gelf_getdyn.c new file mode 100644 index 0000000..d75744e --- /dev/null +++ b/libelf/gelf_getdyn.c @@ -0,0 +1,99 @@ +/* Get information from dynamic table at the given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Dyn * +gelf_getdyn (data, ndx, dst) + Elf_Data *data; + int ndx; + GElf_Dyn *dst; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + GElf_Dyn *result = NULL; + Elf *elf; + + if (data_scn == NULL) + return NULL; + + if (unlikely (data_scn->d.d_type != ELF_T_DYN)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + elf = data_scn->s->elf; + + rwlock_rdlock (elf->lock); + + /* This is the one place where we have to take advantage of the fact + that an `Elf_Data' pointer is also a pointer to `Elf_Data_Scn'. + The interface is broken so that it requires this hack. */ + if (elf->class == ELFCLASS32) + { + Elf32_Dyn *src; + + /* Here it gets a bit more complicated. The format of the symbol + table entries has to be adopted. The user better has provided + a buffer where we can store the information. While copying the + data we are converting the format. */ + if (unlikely ((ndx + 1) * sizeof (Elf32_Dyn) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + src = &((Elf32_Dyn *) data_scn->d.d_buf)[ndx]; + + /* This might look like a simple copy operation but it's + not. There are zero- and sign-extensions going on. */ + dst->d_tag = src->d_tag; + /* It OK to copy `d_val' since `d_ptr' has the same size. */ + dst->d_un.d_val = src->d_un.d_val; + } + else + { + /* If this is a 64 bit object it's easy. */ + assert (sizeof (GElf_Dyn) == sizeof (Elf64_Dyn)); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely ((ndx + 1) * sizeof (GElf_Dyn) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + *dst = ((GElf_Dyn *) data_scn->d.d_buf)[ndx]; + } + + result = dst; + + out: + rwlock_unlock (elf->lock); + + return result; +} diff --git a/libelf/gelf_getehdr.c b/libelf/gelf_getehdr.c new file mode 100644 index 0000000..5c323dc --- /dev/null +++ b/libelf/gelf_getehdr.c @@ -0,0 +1,88 @@ +/* Get ELF header. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include "libelfP.h" + + +GElf_Ehdr * +gelf_getehdr (elf, dest) + Elf *elf; + GElf_Ehdr *dest; +{ + GElf_Ehdr *result = NULL; + + if (elf == NULL) + return NULL; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + rwlock_rdlock (elf->lock); + + /* The following is an optimization: the ehdr element is at the same + position in both the elf32 and elf64 structure. */ + if (offsetof (struct Elf, state.elf32.ehdr) + != offsetof (struct Elf, state.elf64.ehdr)) + abort (); + /* Just pick one of the values. */ + if (unlikely (elf->state.elf64.ehdr == NULL)) + /* Maybe no ELF header was created yet. */ + __libelf_seterrno (ELF_E_WRONG_ORDER_EHDR); + else if (elf->class == ELFCLASS32) + { + Elf32_Ehdr *ehdr = elf->state.elf32.ehdr; + + /* Convert the 32-bit struct to an 64-bit one. */ + memcpy (dest->e_ident, ehdr->e_ident, EI_NIDENT); +#define COPY(name) \ + dest->name = ehdr->name + COPY (e_type); + COPY (e_machine); + COPY (e_version); + COPY (e_entry); + COPY (e_phoff); + COPY (e_shoff); + COPY (e_flags); + COPY (e_ehsize); + COPY (e_phentsize); + COPY (e_phnum); + COPY (e_shentsize); + COPY (e_shnum); + COPY (e_shstrndx); + + result = dest; + } + else + result = memcpy (dest, elf->state.elf64.ehdr, sizeof (*dest)); + + rwlock_unlock (elf->lock); + + return result; +} +INTDEF(gelf_getehdr) diff --git a/libelf/gelf_getlib.c b/libelf/gelf_getlib.c new file mode 100644 index 0000000..9366c79 --- /dev/null +++ b/libelf/gelf_getlib.c @@ -0,0 +1,68 @@ +/* Get library from table at the given index. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Lib * +gelf_getlib (data, ndx, dst) + Elf_Data *data; + int ndx; + GElf_Lib *dst; +{ + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_LIB)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + + rwlock_rdlock (data_scn->s->elf->lock); + + /* The on disk format of Elf32_Lib and Elf64_Lib is identical. So + we can simplify things significantly. */ + assert (sizeof (GElf_Lib) == sizeof (Elf32_Lib)); + assert (sizeof (GElf_Lib) == sizeof (Elf64_Lib)); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + GElf_Lib *result = NULL; + if (unlikely ((ndx + 1) * sizeof (GElf_Lib) > data->d_size)) + __libelf_seterrno (ELF_E_INVALID_INDEX); + else + { + *dst = ((GElf_Lib *) data->d_buf)[ndx]; + + result = dst; + } + + rwlock_unlock (data_scn->s->elf->lock); + + return result; +} diff --git a/libelf/gelf_getmove.c b/libelf/gelf_getmove.c new file mode 100644 index 0000000..a3b96bb --- /dev/null +++ b/libelf/gelf_getmove.c @@ -0,0 +1,70 @@ +/* Get move structure at the given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Move * +gelf_getmove (data, ndx, dst) + Elf_Data *data; + int ndx; + GElf_Move *dst; +{ + GElf_Move *result = NULL; + Elf *elf; + + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_MOVE)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* The types for 32 and 64 bit are the same. Lucky us. */ + assert (sizeof (GElf_Move) == sizeof (Elf32_Move)); + assert (sizeof (GElf_Move) == sizeof (Elf64_Move)); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely ((ndx + 1) * sizeof (GElf_Move) > data->d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + elf = ((Elf_Data_Scn *) data)->s->elf; + rwlock_rdlock (elf->lock); + + *dst = ((GElf_Move *) data->d_buf)[ndx]; + + rwlock_unlock (elf->lock); + + result = dst; + + out: + return result; +} diff --git a/libelf/gelf_getphdr.c b/libelf/gelf_getphdr.c new file mode 100644 index 0000000..fd033e5 --- /dev/null +++ b/libelf/gelf_getphdr.c @@ -0,0 +1,117 @@ +/* Return program header table entry. + Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +GElf_Phdr * +gelf_getphdr (elf, ndx, dst) + Elf *elf; + int ndx; + GElf_Phdr *dst; +{ + GElf_Phdr *result = NULL; + + if (elf == NULL) + return NULL; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + if (dst == NULL) + { + __libelf_seterrno (ELF_E_INVALID_OPERAND); + return NULL; + } + + rwlock_rdlock (elf->lock); + + if (elf->class == ELFCLASS32) + { + /* Copy the elements one-by-one. */ + Elf32_Phdr *phdr = elf->state.elf32.phdr; + + if (phdr == NULL) + { + phdr = INTUSE(elf32_getphdr) (elf); + if (phdr == NULL) + /* The error number is already set. */ + goto out; + } + + /* Test whether the index is ok. */ + if (ndx >= elf->state.elf32.ehdr->e_phnum) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + /* We know the result now. */ + result = dst; + + /* Now correct the pointer to point to the correct element. */ + phdr += ndx; + +#define COPY(Name) result->Name = phdr->Name + COPY (p_type); + COPY (p_offset); + COPY (p_vaddr); + COPY (p_paddr); + COPY (p_filesz); + COPY (p_memsz); + COPY (p_flags); + COPY (p_align); + } + else + { + /* Copy the elements one-by-one. */ + Elf64_Phdr *phdr = elf->state.elf64.phdr; + + if (phdr == NULL) + { + phdr = INTUSE(elf64_getphdr) (elf); + if (phdr == NULL) + /* The error number is already set. */ + goto out; + } + + /* Test whether the index is ok. */ + if (ndx >= elf->state.elf64.ehdr->e_phnum) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + /* We only have to copy the data. */ + result = memcpy (dst, phdr + ndx, sizeof (GElf_Phdr)); + } + + out: + rwlock_unlock (elf->lock); + + return result; +} diff --git a/libelf/gelf_getrel.c b/libelf/gelf_getrel.c new file mode 100644 index 0000000..7dc78a7 --- /dev/null +++ b/libelf/gelf_getrel.c @@ -0,0 +1,96 @@ +/* Get REL relocation information at given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +GElf_Rel * +gelf_getrel (data, ndx, dst) + Elf_Data *data; + int ndx; + GElf_Rel *dst; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + Elf_Scn *scn; + GElf_Rel *result; + + if (data_scn == NULL) + return NULL; + + if (unlikely (ndx < 0)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return NULL; + } + + if (unlikely (data_scn->d.d_type != ELF_T_REL)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* This is the one place where we have to take advantage of the fact + that an `Elf_Data' pointer is also a pointer to `Elf_Data_Scn'. + The interface is broken so that it requires this hack. */ + scn = data_scn->s; + + rwlock_rdlock (scn->elf->lock); + + if (scn->elf->class == ELFCLASS32) + { + /* We have to convert the data. */ + if (unlikely ((ndx + 1) * sizeof (Elf32_Rel) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + result = NULL; + } + else + { + Elf32_Rel *src = &((Elf32_Rel *) data_scn->d.d_buf)[ndx]; + + dst->r_offset = src->r_offset; + dst->r_info = GELF_R_INFO (ELF32_R_SYM (src->r_info), + ELF32_R_TYPE (src->r_info)); + + result = dst; + } + } + else + { + /* Simply copy the data after we made sure we are actually getting + correct data. */ + if (unlikely ((ndx + 1) * sizeof (Elf64_Rel) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + result = NULL; + } + else + result = memcpy (dst, &((Elf64_Rel *) data_scn->d.d_buf)[ndx], + sizeof (Elf64_Rel)); + } + + rwlock_unlock (scn->elf->lock); + + return result; +} diff --git a/libelf/gelf_getrela.c b/libelf/gelf_getrela.c new file mode 100644 index 0000000..fb94b00 --- /dev/null +++ b/libelf/gelf_getrela.c @@ -0,0 +1,97 @@ +/* Get RELA relocation information at given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +GElf_Rela * +gelf_getrela (data, ndx, dst) + Elf_Data *data; + int ndx; + GElf_Rela *dst; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + Elf_Scn *scn; + GElf_Rela *result; + + if (data_scn == NULL) + return NULL; + + if (unlikely (ndx < 0)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return NULL; + } + + if (unlikely (data_scn->d.d_type != ELF_T_RELA)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* This is the one place where we have to take advantage of the fact + that an `Elf_Data' pointer is also a pointer to `Elf_Data_Scn'. + The interface is broken so that it requires this hack. */ + scn = data_scn->s; + + rwlock_rdlock (scn->elf->lock); + + if (scn->elf->class == ELFCLASS32) + { + /* We have to convert the data. */ + if (unlikely ((ndx + 1) * sizeof (Elf32_Rela) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + result = NULL; + } + else + { + Elf32_Rela *src = &((Elf32_Rela *) data_scn->d.d_buf)[ndx]; + + dst->r_offset = src->r_offset; + dst->r_info = GELF_R_INFO (ELF32_R_SYM (src->r_info), + ELF32_R_TYPE (src->r_info)); + dst->r_addend = src->r_addend; + + result = dst; + } + } + else + { + /* Simply copy the data after we made sure we are actually getting + correct data. */ + if (unlikely ((ndx + 1) * sizeof (Elf64_Rela) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + result = NULL; + } + else + result = memcpy (dst, &((Elf64_Rela *) data_scn->d.d_buf)[ndx], + sizeof (Elf64_Rela)); + } + + rwlock_unlock (scn->elf->lock); + + return result; +} diff --git a/libelf/gelf_getshdr.c b/libelf/gelf_getshdr.c new file mode 100644 index 0000000..4ea5886 --- /dev/null +++ b/libelf/gelf_getshdr.c @@ -0,0 +1,91 @@ +/* Return section header. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +GElf_Shdr * +gelf_getshdr (scn, dst) + Elf_Scn *scn; + GElf_Shdr *dst; +{ + GElf_Shdr *result = NULL; + + if (scn == NULL) + return NULL; + + if (dst == NULL) + { + __libelf_seterrno (ELF_E_INVALID_OPERAND); + return NULL; + } + + rwlock_rdlock (scn->elf->lock); + + if (scn->elf->class == ELFCLASS32) + { + /* Copy the elements one-by-one. */ + Elf32_Shdr *shdr = scn->shdr.e32 ?: INTUSE(elf32_getshdr) (scn); + + if (shdr == NULL) + { + __libelf_seterrno (ELF_E_INVALID_OPERAND); + goto out; + } + +#define COPY(name) \ + dst->name = shdr->name + COPY (sh_name); + COPY (sh_type); + COPY (sh_flags); + COPY (sh_addr); + COPY (sh_offset); + COPY (sh_size); + COPY (sh_link); + COPY (sh_info); + COPY (sh_addralign); + COPY (sh_entsize); + + result = dst; + } + else + { + Elf64_Shdr *shdr = scn->shdr.e64 ?: INTUSE(elf64_getshdr) (scn); + + if (shdr == NULL) + { + __libelf_seterrno (ELF_E_INVALID_OPERAND); + goto out; + } + + /* We only have to copy the data. */ + result = memcpy (dst, shdr, sizeof (GElf_Shdr)); + } + + out: + rwlock_unlock (scn->elf->lock); + + return result; +} +INTDEF(gelf_getshdr) diff --git a/libelf/gelf_getsym.c b/libelf/gelf_getsym.c new file mode 100644 index 0000000..90536c6 --- /dev/null +++ b/libelf/gelf_getsym.c @@ -0,0 +1,105 @@ +/* Get symbol information from symbol table at the given index. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Sym * +gelf_getsym (data, ndx, dst) + Elf_Data *data; + int ndx; + GElf_Sym *dst; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + GElf_Sym *result = NULL; + + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_SYM)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + rwlock_rdlock (data_scn->s->elf->lock); + + /* This is the one place where we have to take advantage of the fact + that an `Elf_Data' pointer is also a pointer to `Elf_Data_Scn'. + The interface is broken so that it requires this hack. */ + if (data_scn->s->elf->class == ELFCLASS32) + { + Elf32_Sym *src; + + /* Here it gets a bit more complicated. The format of the symbol + table entries has to be adopted. The user better has provided + a buffer where we can store the information. While copying the + data we are converting the format. */ + if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > data->d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + src = &((Elf32_Sym *) data->d_buf)[ndx]; + + /* This might look like a simple copy operation but it's + not. There are zero- and sign-extensions going on. */ +#define COPY(name) \ + dst->name = src->name + COPY (st_name); + /* Please note that we can simply copy the `st_info' element since + the definitions of ELFxx_ST_BIND and ELFxx_ST_TYPE are the same + for the 64 bit variant. */ + COPY (st_info); + COPY (st_other); + COPY (st_shndx); + COPY (st_value); + COPY (st_size); + } + else + { + /* If this is a 64 bit object it's easy. */ + assert (sizeof (GElf_Sym) == sizeof (Elf64_Sym)); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely ((ndx + 1) * sizeof (GElf_Sym) > data->d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + *dst = ((GElf_Sym *) data->d_buf)[ndx]; + } + + result = dst; + + out: + rwlock_unlock (data_scn->s->elf->lock); + + return result; +} +INTDEF(gelf_getsym) diff --git a/libelf/gelf_getsyminfo.c b/libelf/gelf_getsyminfo.c new file mode 100644 index 0000000..70cfdcd --- /dev/null +++ b/libelf/gelf_getsyminfo.c @@ -0,0 +1,68 @@ +/* Get additional symbol information from symbol table at the given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Syminfo * +gelf_getsyminfo (data, ndx, dst) + Elf_Data *data; + int ndx; + GElf_Syminfo *dst; +{ + GElf_Syminfo *result = NULL; + + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_SYMINFO)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* The types for 32 and 64 bit are the same. Lucky us. */ + assert (sizeof (GElf_Syminfo) == sizeof (Elf32_Syminfo)); + assert (sizeof (GElf_Syminfo) == sizeof (Elf64_Syminfo)); + + rwlock_rdlock (((Elf_Data_Scn *) data)->s->elf->lock); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely ((ndx + 1) * sizeof (GElf_Syminfo) > data->d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + *dst = ((GElf_Syminfo *) data->d_buf)[ndx]; + + result = dst; + + out: + rwlock_unlock (((Elf_Data_Scn *) data)->s->elf->lock); + + return result; +} diff --git a/libelf/gelf_getsymshndx.c b/libelf/gelf_getsymshndx.c new file mode 100644 index 0000000..856f491 --- /dev/null +++ b/libelf/gelf_getsymshndx.c @@ -0,0 +1,128 @@ +/* Get symbol information and separate section index from symbol table + at the given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Sym * +gelf_getsymshndx (symdata, shndxdata, ndx, dst, dstshndx) + Elf_Data *symdata; + Elf_Data *shndxdata; + int ndx; + GElf_Sym *dst; + Elf32_Word *dstshndx; +{ + Elf_Data_Scn *symdata_scn = (Elf_Data_Scn *) symdata; + Elf_Data_Scn *shndxdata_scn = (Elf_Data_Scn *) shndxdata; + GElf_Sym *result = NULL; + Elf32_Word shndx = 0; + + if (symdata == NULL) + return NULL; + + if (unlikely (symdata->d_type != ELF_T_SYM) + || (likely (shndxdata_scn != NULL) + && unlikely (shndxdata->d_type != ELF_T_WORD))) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + rwlock_rdlock (symdata_scn->s->elf->lock); + + /* The user is not required to pass a data descriptor for an extended + section index table. */ + if (likely (shndxdata_scn != NULL)) + { + if (unlikely ((ndx + 1) * sizeof (Elf32_Word) > shndxdata_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + shndx = ((Elf32_Word *) shndxdata_scn->d.d_buf)[ndx]; + } + + /* This is the one place where we have to take advantage of the fact + that an `Elf_Data' pointer is also a pointer to `Elf_Data_Scn'. + The interface is broken so that it requires this hack. */ + if (symdata_scn->s->elf->class == ELFCLASS32) + { + Elf32_Sym *src; + + /* Here it gets a bit more complicated. The format of the symbol + table entries has to be adopted. The user better has provided + a buffer where we can store the information. While copying the + data we are converting the format. */ + if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > symdata->d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + src = &((Elf32_Sym *) symdata->d_buf)[ndx]; + + /* This might look like a simple copy operation but it's + not. There are zero- and sign-extensions going on. */ +#define COPY(name) \ + dst->name = src->name + COPY (st_name); + /* Please note that we can simply copy the `st_info' element since + the definitions of ELFxx_ST_BIND and ELFxx_ST_TYPE are the same + for the 64 bit variant. */ + COPY (st_info); + COPY (st_other); + COPY (st_shndx); + COPY (st_value); + COPY (st_size); + } + else + { + /* If this is a 64 bit object it's easy. */ + assert (sizeof (GElf_Sym) == sizeof (Elf64_Sym)); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely ((ndx + 1) * sizeof (GElf_Sym) > symdata->d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + *dst = ((GElf_Sym *) symdata->d_buf)[ndx]; + } + + /* Now we can store the section index. */ + if (dstshndx != NULL) + *dstshndx = shndx; + + result = dst; + + out: + rwlock_unlock (symdata_scn->s->elf->lock); + + return result; +} diff --git a/libelf/gelf_getverdaux.c b/libelf/gelf_getverdaux.c new file mode 100644 index 0000000..0a14b12 --- /dev/null +++ b/libelf/gelf_getverdaux.c @@ -0,0 +1,70 @@ +/* Get additional symbol version definition information at the given offset. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Verdaux * +gelf_getverdaux (data, offset, dst) + Elf_Data *data; + int offset; + GElf_Verdaux *dst; +{ + GElf_Verdaux *result; + + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_VDEF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* It's easy to handle this type. It has the same size for 32 and + 64 bit objects. */ + assert (sizeof (GElf_Verdaux) == sizeof (Elf32_Verdaux)); + assert (sizeof (GElf_Verdaux) == sizeof (Elf64_Verdaux)); + + rwlock_rdlock (((Elf_Data_Scn *) data)->s->elf->lock); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely (offset < 0) + || unlikely (offset + sizeof (GElf_Verdaux) > data->d_size) + || unlikely (offset % __alignof__ (GElf_Verdaux) != 0)) + { + __libelf_seterrno (ELF_E_OFFSET_RANGE); + result = NULL; + } + else + result = (GElf_Verdaux *) memcpy (dst, (char *) data->d_buf + offset, + sizeof (GElf_Verdaux)); + + + rwlock_unlock (((Elf_Data_Scn *) data)->s->elf->lock); + + return result; +} diff --git a/libelf/gelf_getverdef.c b/libelf/gelf_getverdef.c new file mode 100644 index 0000000..b9492ef --- /dev/null +++ b/libelf/gelf_getverdef.c @@ -0,0 +1,69 @@ +/* Get symbol version definition information at the given offset. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Verdef * +gelf_getverdef (data, offset, dst) + Elf_Data *data; + int offset; + GElf_Verdef *dst; +{ + GElf_Verdef *result; + + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_VDEF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* It's easy to handle this type. It has the same size for 32 and + 64 bit objects. */ + assert (sizeof (GElf_Verdef) == sizeof (Elf32_Verdef)); + assert (sizeof (GElf_Verdef) == sizeof (Elf64_Verdef)); + + rwlock_rdlock (((Elf_Data_Scn *) data)->s->elf->lock); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely (offset < 0) + || unlikely (offset + sizeof (GElf_Verdef) > data->d_size) + || unlikely (offset % __alignof__ (GElf_Verdef) != 0)) + { + __libelf_seterrno (ELF_E_OFFSET_RANGE); + result = NULL; + } + else + result = (GElf_Verdef *) memcpy (dst, (char *) data->d_buf + offset, + sizeof (GElf_Verdef)); + + rwlock_unlock (((Elf_Data_Scn *) data)->s->elf->lock); + + return result; +} diff --git a/libelf/gelf_getvernaux.c b/libelf/gelf_getvernaux.c new file mode 100644 index 0000000..fbaa109 --- /dev/null +++ b/libelf/gelf_getvernaux.c @@ -0,0 +1,72 @@ +/* Get additional required symbol version information at the given offset. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Vernaux * +gelf_getvernaux (data, offset, dst) + Elf_Data *data; + int offset; + GElf_Vernaux *dst; +{ + GElf_Vernaux *result; + + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_VNEED)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* It's easy to handle this type. It has the same size for 32 and + 64 bit objects. And fortunately the `ElfXXX_Vernaux' records + also have the same size. */ + assert (sizeof (GElf_Vernaux) == sizeof (Elf32_Verneed)); + assert (sizeof (GElf_Vernaux) == sizeof (Elf64_Verneed)); + assert (sizeof (GElf_Vernaux) == sizeof (Elf32_Vernaux)); + assert (sizeof (GElf_Vernaux) == sizeof (Elf64_Vernaux)); + + rwlock_rdlock (((Elf_Data_Scn *) data)->s->elf->lock); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely (offset < 0) + || unlikely (offset + sizeof (GElf_Vernaux) > data->d_size) + || unlikely (offset % sizeof (GElf_Vernaux) != 0)) + { + __libelf_seterrno (ELF_E_OFFSET_RANGE); + result = NULL; + } + else + result = (GElf_Vernaux *) memcpy (dst, (char *) data->d_buf + offset, + sizeof (GElf_Verneed)); + + rwlock_unlock (((Elf_Data_Scn *) data)->s->elf->lock); + + return result; +} diff --git a/libelf/gelf_getverneed.c b/libelf/gelf_getverneed.c new file mode 100644 index 0000000..573e116 --- /dev/null +++ b/libelf/gelf_getverneed.c @@ -0,0 +1,72 @@ +/* Get required symbol version information at the given offset. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Verneed * +gelf_getverneed (data, offset, dst) + Elf_Data *data; + int offset; + GElf_Verneed *dst; +{ + GElf_Verneed *result; + + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_VNEED)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* It's easy to handle this type. It has the same size for 32 and + 64 bit objects. And fortunately the `ElfXXX_Vernaux' records + also have the same size. */ + assert (sizeof (GElf_Verneed) == sizeof (Elf32_Verneed)); + assert (sizeof (GElf_Verneed) == sizeof (Elf64_Verneed)); + assert (sizeof (GElf_Verneed) == sizeof (Elf32_Vernaux)); + assert (sizeof (GElf_Verneed) == sizeof (Elf64_Vernaux)); + + rwlock_rdlock (((Elf_Data_Scn *) data)->s->elf->lock); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely (offset < 0) + || unlikely (offset + sizeof (GElf_Verneed) > data->d_size) + || unlikely (offset % sizeof (GElf_Verneed) != 0)) + { + __libelf_seterrno (ELF_E_OFFSET_RANGE); + result = NULL; + } + else + result = (GElf_Verneed *) memcpy (dst, (char *) data->d_buf + offset, + sizeof (GElf_Verneed)); + + rwlock_unlock (((Elf_Data_Scn *) data)->s->elf->lock); + + return result; +} diff --git a/libelf/gelf_getversym.c b/libelf/gelf_getversym.c new file mode 100644 index 0000000..9274b14 --- /dev/null +++ b/libelf/gelf_getversym.c @@ -0,0 +1,77 @@ +/* Get symbol version information at the given index. + Copyright (C) 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +GElf_Versym * +gelf_getversym (data, ndx, dst) + Elf_Data *data; + int ndx; + GElf_Versym *dst; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + Elf_Scn *scn; + GElf_Versym *result; + + if (data == NULL) + return NULL; + + if (unlikely (data->d_type != ELF_T_HALF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* This is the one place where we have to take advantage of the fact + that an `Elf_Data' pointer is also a pointer to `Elf_Data_Scn'. + The interface is broken so that it requires this hack. */ + scn = data_scn->s; + + /* It's easy to handle this type. It has the same size for 32 and + 64 bit objects. */ + assert (sizeof (GElf_Versym) == sizeof (Elf32_Versym)); + assert (sizeof (GElf_Versym) == sizeof (Elf64_Versym)); + + rwlock_rdlock (scn->elf->lock); + + /* The data is already in the correct form. Just make sure the + index is OK. */ + if (unlikely ((ndx + 1) * sizeof (GElf_Versym) > data->d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + result = NULL; + } + else + { + *dst = ((GElf_Versym *) data->d_buf)[ndx]; + + result = dst; + } + + rwlock_unlock (scn->elf->lock); + + return result; +} diff --git a/libelf/gelf_newehdr.c b/libelf/gelf_newehdr.c new file mode 100644 index 0000000..587283f --- /dev/null +++ b/libelf/gelf_newehdr.c @@ -0,0 +1,36 @@ +/* Create new ELF header. + Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +unsigned long int +gelf_newehdr (elf, class) + Elf *elf; + int class; +{ + return (class == ELFCLASS32 + ? (unsigned long int) INTUSE(elf32_newehdr) (elf) + : (unsigned long int) INTUSE(elf64_newehdr) (elf)); +} diff --git a/libelf/gelf_newphdr.c b/libelf/gelf_newphdr.c new file mode 100644 index 0000000..d1d433e --- /dev/null +++ b/libelf/gelf_newphdr.c @@ -0,0 +1,36 @@ +/* Create new ELF program header. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +unsigned long int +gelf_newphdr (elf, phnum) + Elf *elf; + size_t phnum; +{ + return (elf->class == ELFCLASS32 + ? (unsigned long int) INTUSE(elf32_newphdr) (elf, phnum) + : (unsigned long int) INTUSE(elf64_newphdr) (elf, phnum)); +} diff --git a/libelf/gelf_rawchunk.c b/libelf/gelf_rawchunk.c new file mode 100644 index 0000000..667f301 --- /dev/null +++ b/libelf/gelf_rawchunk.c @@ -0,0 +1,71 @@ +/* Retrieve uninterpreted chunk of the file contents. + Copyright (C) 2002 Red Hat, Inc. + Contributed by Ulrich Drepper , 2002. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include "libelfP.h" + + +char * +gelf_rawchunk (elf, offset, size) + Elf *elf; + GElf_Off offset; + GElf_Word size; +{ + if (elf == NULL) + { + /* No valid descriptor. */ + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + if (offset >= elf->maximum_size + || offset + size >= elf->maximum_size + || offset + size < offset) + { + /* Invalid request. */ + __libelf_seterrno (ELF_E_INVALID_OP); + return NULL; + } + + /* If the file is mmap'ed return an appropriate pointer. */ + if (elf->map_address != NULL) + return (char *) elf->map_address + elf->start_offset + offset; + + /* We allocate the memory and read the data from the file. */ + char *result = (char *) malloc (size); + if (result == NULL) + __libelf_seterrno (ELF_E_NOMEM); + else + /* Read the file content. */ + if ((size_t) pread (elf->fildes, result, size, elf->start_offset + offset) + != size) + { + /* Something went wrong. */ + __libelf_seterrno (ELF_E_READ_ERROR); + free (result); + } + + return result; +} diff --git a/libelf/gelf_update_dyn.c b/libelf/gelf_update_dyn.c new file mode 100644 index 0000000..b066fd6 --- /dev/null +++ b/libelf/gelf_update_dyn.c @@ -0,0 +1,104 @@ +/* Update information in dynamic table at the given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +int +gelf_update_dyn (data, ndx, src) + Elf_Data *data; + int ndx; + GElf_Dyn *src; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + Elf_Scn *scn; + int result = 0; + + if (data == NULL) + return 0; + + if (unlikely (ndx < 0)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_DYN)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + scn = data_scn->s; + rwlock_wrlock (scn->elf->lock); + + if (scn->elf->class == ELFCLASS32) + { + Elf32_Dyn *dyn; + + /* There is the possibility that the values in the input are + too large. */ + if (unlikely (src->d_tag < -0x80000000ll) + || unlikely (src->d_tag > 0x7fffffffll) + || unlikely (src->d_un.d_val > 0xffffffffull)) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + goto out; + } + + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (Elf32_Dyn) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + dyn = &((Elf32_Dyn *) data_scn->d.d_buf)[ndx]; + + dyn->d_tag = src->d_tag; + dyn->d_un.d_val = src->d_un.d_val; + } + else + { + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (Elf64_Dyn) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + ((Elf64_Dyn *) data_scn->d.d_buf)[ndx] = *src; + } + + result = 1; + + /* Mark the section as modified. */ + scn->flags |= ELF_F_DIRTY; + + out: + rwlock_unlock (scn->elf->lock); + + return result; +} diff --git a/libelf/gelf_update_ehdr.c b/libelf/gelf_update_ehdr.c new file mode 100644 index 0000000..e13121d --- /dev/null +++ b/libelf/gelf_update_ehdr.c @@ -0,0 +1,103 @@ +/* Update ELF header. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +int +gelf_update_ehdr (Elf *elf, GElf_Ehdr *src) +{ + int result = 0; + + if (elf == NULL) + return 0; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return 0; + } + + rwlock_wrlock (elf->lock); + + if (elf->class == ELFCLASS32) + { + Elf32_Ehdr *ehdr = elf->state.elf32.ehdr; + + if (ehdr == NULL) + { + __libelf_seterrno (ELF_E_WRONG_ORDER_EHDR); + goto out; + } + + /* We have to convert the data to the 32 bit format. This might + overflow some fields so we have to test for this case before + copying. */ + if (unlikely (src->e_entry > 0xffffffffull) + || unlikely (src->e_phoff > 0xffffffffull) + || unlikely (src->e_shoff > 0xffffffffull)) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + goto out; + } + + /* Copy the data. */ + memcpy (ehdr->e_ident, src->e_ident, EI_NIDENT); +#define COPY(name) \ + ehdr->name = src->name + COPY (e_type); + COPY (e_machine); + COPY (e_version); + COPY (e_entry); + COPY (e_phoff); + COPY (e_shoff); + COPY (e_flags); + COPY (e_ehsize); + COPY (e_phentsize); + COPY (e_phnum); + COPY (e_shentsize); + COPY (e_shnum); + COPY (e_shstrndx); + } + else + { + Elf64_Ehdr *ehdr = elf->state.elf64.ehdr; + + if (ehdr == NULL) + { + __libelf_seterrno (ELF_E_WRONG_ORDER_EHDR); + goto out; + } + + /* Just copy the data. */ + memcpy (ehdr, src, sizeof (Elf64_Ehdr)); + } + + result = 1; + + out: + rwlock_unlock (elf->lock); + + return result; +} diff --git a/libelf/gelf_update_lib.c b/libelf/gelf_update_lib.c new file mode 100644 index 0000000..08ce229 --- /dev/null +++ b/libelf/gelf_update_lib.c @@ -0,0 +1,72 @@ +/* Update library in table at the given index. + Copyright (C) 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2004. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +gelf_update_lib (data, ndx, src) + Elf_Data *data; + int ndx; + GElf_Lib *src; +{ + if (data == NULL) + return 0; + + if (unlikely (ndx < 0)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + if (unlikely (data_scn->d.d_type != ELF_T_LIB)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + Elf_Scn *scn = data_scn->s; + rwlock_wrlock (scn->elf->lock); + + /* Check whether we have to resize the data buffer. */ + int result = 0; + if (unlikely ((ndx + 1) * sizeof (Elf64_Lib) > data_scn->d.d_size)) + __libelf_seterrno (ELF_E_INVALID_INDEX); + else + { + ((Elf64_Lib *) data_scn->d.d_buf)[ndx] = *src; + + result = 1; + + /* Mark the section as modified. */ + scn->flags |= ELF_F_DIRTY; + } + + rwlock_unlock (scn->elf->lock); + + return result; +} diff --git a/libelf/gelf_update_move.c b/libelf/gelf_update_move.c new file mode 100644 index 0000000..090e397 --- /dev/null +++ b/libelf/gelf_update_move.c @@ -0,0 +1,69 @@ +/* Update move structure at the given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +gelf_update_move (data, ndx, src) + Elf_Data *data; + int ndx; + GElf_Move *src; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + + if (data == NULL) + return 0; + + /* The types for 32 and 64 bit are the same. Lucky us. */ + assert (sizeof (GElf_Move) == sizeof (Elf32_Move)); + assert (sizeof (GElf_Move) == sizeof (Elf64_Move)); + + /* Check whether we have to resize the data buffer. */ + if (unlikely (ndx < 0) + || unlikely ((ndx + 1) * sizeof (GElf_Move) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_MOVE)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + rwlock_wrlock (data_scn->s->elf->lock); + + ((GElf_Move *) data_scn->d.d_buf)[ndx] = *src; + + /* Mark the section as modified. */ + data_scn->s->flags |= ELF_F_DIRTY; + + rwlock_unlock (data_scn->s->elf->lock); + + return 1; +} diff --git a/libelf/gelf_update_phdr.c b/libelf/gelf_update_phdr.c new file mode 100644 index 0000000..ddd4e1e --- /dev/null +++ b/libelf/gelf_update_phdr.c @@ -0,0 +1,120 @@ +/* Update program header program header table entry. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +int +gelf_update_phdr (Elf *elf, int ndx, GElf_Phdr *src) +{ + int result = 0; + + if (elf == NULL) + return 0; + + if (unlikely (elf->kind != ELF_K_ELF)) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return 0; + } + + rwlock_wrlock (elf->lock); + + if (elf->class == ELFCLASS32) + { + Elf32_Phdr *phdr = elf->state.elf32.phdr; + + /* We have to convert the data to the 32 bit format. This might + overflow some fields so we have to test for this case before + copying. */ + if (unlikely (src->p_offset > 0xffffffffull) + || unlikely (src->p_vaddr > 0xffffffffull) + || unlikely (src->p_paddr > 0xffffffffull) + || unlikely (src->p_filesz > 0xffffffffull) + || unlikely (src->p_memsz > 0xffffffffull) + || unlikely (src->p_align > 0xffffffffull)) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + goto out; + } + + if (phdr == NULL) + { + phdr = INTUSE(elf32_getphdr) (elf); + if (phdr == NULL) + /* The error number is already set. */ + goto out; + } + + /* Test whether the index is ok. */ + if (unlikely (ndx >= elf->state.elf32.ehdr->e_phnum)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + /* Now correct the pointer to point to the correct element. */ + phdr += ndx; + +#define COPY(name) \ + phdr->name = src->name + COPY (p_type); + COPY (p_offset); + COPY (p_vaddr); + COPY (p_paddr); + COPY (p_filesz); + COPY (p_memsz); + COPY (p_flags); + COPY (p_align); + } + else + { + Elf64_Phdr *phdr = elf->state.elf64.phdr; + + if (phdr == NULL) + { + phdr = INTUSE(elf64_getphdr) (elf); + if (phdr == NULL) + /* The error number is already set. */ + goto out; + } + + /* Test whether the index is ok. */ + if (unlikely (ndx >= elf->state.elf64.ehdr->e_phnum)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + /* Just copy the data. */ + memcpy (phdr + ndx, src, sizeof (Elf64_Phdr)); + } + + result = 1; + + out: + rwlock_unlock (elf->lock); + + return result; +} diff --git a/libelf/gelf_update_rel.c b/libelf/gelf_update_rel.c new file mode 100644 index 0000000..c59c6dd --- /dev/null +++ b/libelf/gelf_update_rel.c @@ -0,0 +1,102 @@ +/* Update REL relocation information at given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +int +gelf_update_rel (Elf_Data *dst, int ndx, GElf_Rel *src) +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) dst; + Elf_Scn *scn; + int result = 0; + + if (dst == NULL) + return 0; + + if (unlikely (ndx < 0)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_REL)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + scn = data_scn->s; + rwlock_wrlock (scn->elf->lock); + + if (scn->elf->class == ELFCLASS32) + { + Elf32_Rel *rel; + + /* There is the possibility that the values in the input are + too large. */ + if (unlikely (src->r_offset > 0xffffffffull) + || unlikely (GELF_R_SYM (src->r_info) > 0xffffff) + || unlikely (GELF_R_TYPE (src->r_info) > 0xff)) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + goto out; + } + + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (Elf32_Rel) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + rel = &((Elf32_Rel *) data_scn->d.d_buf)[ndx]; + + rel->r_offset = src->r_offset; + rel->r_info = ELF32_R_INFO (GELF_R_SYM (src->r_info), + GELF_R_TYPE (src->r_info)); + } + else + { + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (Elf64_Rel) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + ((Elf64_Rel *) data_scn->d.d_buf)[ndx] = *src; + } + + result = 1; + + /* Mark the section as modified. */ + scn->flags |= ELF_F_DIRTY; + + out: + rwlock_unlock (scn->elf->lock); + + return result; +} diff --git a/libelf/gelf_update_rela.c b/libelf/gelf_update_rela.c new file mode 100644 index 0000000..f932c01 --- /dev/null +++ b/libelf/gelf_update_rela.c @@ -0,0 +1,105 @@ +/* Update RELA relocation information at given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +int +gelf_update_rela (Elf_Data *dst, int ndx, GElf_Rela *src) +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) dst; + Elf_Scn *scn; + int result = 0; + + if (dst == NULL) + return 0; + + if (unlikely (ndx < 0)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_RELA)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + scn = data_scn->s; + rwlock_wrlock (scn->elf->lock); + + if (scn->elf->class == ELFCLASS32) + { + Elf32_Rela *rel; + + /* There is the possibility that the values in the input are + too large. */ + if (unlikely (src->r_offset > 0xffffffffull) + || unlikely (GELF_R_SYM (src->r_info) > 0xffffff) + || unlikely (GELF_R_TYPE (src->r_info) > 0xff) + || unlikely (src->r_addend < -0x80000000ll) + || unlikely (src->r_addend > 0x7fffffffll)) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + goto out; + } + + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (Elf32_Rela) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + rel = &((Elf32_Rela *) data_scn->d.d_buf)[ndx]; + + rel->r_offset = src->r_offset; + rel->r_info = ELF32_R_INFO (GELF_R_SYM (src->r_info), + GELF_R_TYPE (src->r_info)); + rel->r_addend = src->r_addend; + } + else + { + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (Elf64_Rela) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + ((Elf64_Rela *) data_scn->d.d_buf)[ndx] = *src; + } + + result = 1; + + /* Mark the section as modified. */ + scn->flags |= ELF_F_DIRTY; + + out: + rwlock_unlock (scn->elf->lock); + + return result; +} diff --git a/libelf/gelf_update_shdr.c b/libelf/gelf_update_shdr.c new file mode 100644 index 0000000..c54e8c5 --- /dev/null +++ b/libelf/gelf_update_shdr.c @@ -0,0 +1,94 @@ +/* Update section header. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +int +gelf_update_shdr (Elf_Scn *scn, GElf_Shdr *src) +{ + int result = 0; + Elf *elf; + + if (scn == NULL || src == NULL) + return 0; + + elf = scn->elf; + rwlock_wrlock (elf->lock); + + if (elf->class == ELFCLASS32) + { + Elf32_Shdr *shdr = scn->shdr.e32 ?: INTUSE(elf32_getshdr) (scn); + + if (shdr == NULL) + { + __libelf_seterrno (ELF_E_INVALID_OPERAND); + goto out; + } + + if (unlikely (src->sh_flags > 0xffffffffull) + || unlikely (src->sh_addr > 0xffffffffull) + || unlikely (src->sh_offset > 0xffffffffull) + || unlikely (src->sh_size > 0xffffffffull) + || unlikely (src->sh_addralign > 0xffffffffull) + || unlikely (src->sh_entsize > 0xffffffffull)) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + goto out; + } + +#define COPY(name) \ + shdr->name = src->name + COPY (sh_name); + COPY (sh_type); + COPY (sh_flags); + COPY (sh_addr); + COPY (sh_offset); + COPY (sh_size); + COPY (sh_link); + COPY (sh_info); + COPY (sh_addralign); + COPY (sh_entsize); + } + else + { + Elf64_Shdr *shdr = scn->shdr.e64 ?: INTUSE(elf64_getshdr) (scn); + + if (shdr == NULL) + { + __libelf_seterrno (ELF_E_INVALID_OPERAND); + goto out; + } + + /* We only have to copy the data. */ + (void) memcpy (shdr, src, sizeof (GElf_Shdr)); + } + + result = 1; + + out: + rwlock_unlock (elf->lock); + + return result; +} diff --git a/libelf/gelf_update_sym.c b/libelf/gelf_update_sym.c new file mode 100644 index 0000000..8fc7dd6 --- /dev/null +++ b/libelf/gelf_update_sym.c @@ -0,0 +1,113 @@ +/* Update symbol information in symbol table at the given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +gelf_update_sym (data, ndx, src) + Elf_Data *data; + int ndx; + GElf_Sym *src; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + Elf_Scn *scn; + int result = 0; + + if (data == NULL) + return 0; + + if (unlikely (ndx < 0)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_SYM)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + scn = data_scn->s; + rwlock_wrlock (scn->elf->lock); + + if (scn->elf->class == ELFCLASS32) + { + Elf32_Sym *sym; + + /* There is the possibility that the values in the input are + too large. */ + if (unlikely (src->st_value > 0xffffffffull) + || unlikely (src->st_size > 0xffffffffull)) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + goto out; + } + + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + sym = &((Elf32_Sym *) data_scn->d.d_buf)[ndx]; + +#define COPY(name) \ + sym->name = src->name + COPY (st_name); + COPY (st_value); + COPY (st_size); + /* Please note that we can simply copy the `st_info' element since + the definitions of ELFxx_ST_BIND and ELFxx_ST_TYPE are the same + for the 64 bit variant. */ + COPY (st_info); + COPY (st_other); + COPY (st_shndx); + } + else + { + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (Elf64_Sym) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + ((Elf64_Sym *) data_scn->d.d_buf)[ndx] = *src; + } + + result = 1; + + /* Mark the section as modified. */ + scn->flags |= ELF_F_DIRTY; + + out: + rwlock_unlock (scn->elf->lock); + + return result; +} diff --git a/libelf/gelf_update_syminfo.c b/libelf/gelf_update_syminfo.c new file mode 100644 index 0000000..a60aa5c --- /dev/null +++ b/libelf/gelf_update_syminfo.c @@ -0,0 +1,80 @@ +/* Update additional symbol information in symbol table at the given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +gelf_update_syminfo (data, ndx, src) + Elf_Data *data; + int ndx; + GElf_Syminfo *src; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + Elf_Scn *scn; + int result = 0; + + if (data == NULL) + return 0; + + if (unlikely (ndx < 0)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_SYMINFO)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + /* The types for 32 and 64 bit are the same. Lucky us. */ + assert (sizeof (GElf_Syminfo) == sizeof (Elf32_Syminfo)); + assert (sizeof (GElf_Syminfo) == sizeof (Elf64_Syminfo)); + + scn = data_scn->s; + rwlock_wrlock (scn->elf->lock); + + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (GElf_Syminfo) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + ((GElf_Syminfo *) data_scn->d.d_buf)[ndx] = *src; + + result = 1; + + /* Mark the section as modified. */ + scn->flags |= ELF_F_DIRTY; + + out: + rwlock_unlock (scn->elf->lock); + + return result; +} diff --git a/libelf/gelf_update_symshndx.c b/libelf/gelf_update_symshndx.c new file mode 100644 index 0000000..4f37615 --- /dev/null +++ b/libelf/gelf_update_symshndx.c @@ -0,0 +1,143 @@ +/* Update symbol information and section index in symbol table at the + given index. + Copyright (C) 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +gelf_update_symshndx (symdata, shndxdata, ndx, src, srcshndx) + Elf_Data *symdata; + Elf_Data *shndxdata; + int ndx; + GElf_Sym *src; + Elf32_Word srcshndx; +{ + Elf_Data_Scn *symdata_scn = (Elf_Data_Scn *) symdata; + Elf_Data_Scn *shndxdata_scn = (Elf_Data_Scn *) shndxdata; + Elf_Scn *scn; + Elf32_Word *shndx = NULL; + int result = 0; + + if (symdata == NULL) + return 0; + + if (unlikely (ndx < 0)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (symdata_scn->d.d_type != ELF_T_SYM)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + scn = symdata_scn->s; + /* We simply have to believe the user that the two sections belong to + the same ELF file. */ + rwlock_wrlock (scn->elf->lock); + + /* The user is not required to pass a data descriptor for an extended + section index table. */ + if (shndxdata_scn != NULL) + { + if (unlikely ((ndx + 1) * sizeof (Elf32_Word) > shndxdata_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + shndx = &((Elf32_Word *) shndxdata_scn->d.d_buf)[ndx]; + } + /* But if s/he does not the extended sectio index must be zero. */ + else if (unlikely (srcshndx != 0)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + if (scn->elf->class == ELFCLASS32) + { + Elf32_Sym *sym; + + /* There is the possibility that the values in the input are + too large. */ + if (unlikely (src->st_value > 0xffffffffull) + || unlikely (src->st_size > 0xffffffffull)) + { + __libelf_seterrno (ELF_E_INVALID_DATA); + goto out; + } + + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (Elf32_Sym) > symdata_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + sym = &((Elf32_Sym *) symdata_scn->d.d_buf)[ndx]; + +#define COPY(name) \ + sym->name = src->name + COPY (st_name); + COPY (st_value); + COPY (st_size); + /* Please note that we can simply copy the `st_info' element since + the definitions of ELFxx_ST_BIND and ELFxx_ST_TYPE are the same + for the 64 bit variant. */ + COPY (st_info); + COPY (st_other); + COPY (st_shndx); + } + else + { + /* Check whether we have to resize the data buffer. */ + if (unlikely ((ndx + 1) * sizeof (Elf64_Sym) > symdata_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + goto out; + } + + ((Elf64_Sym *) symdata_scn->d.d_buf)[ndx] = *src; + } + + /* Now we can store the section index. */ + if (shndx != NULL) + *shndx = srcshndx; + + result = 1; + + /* Mark the section as modified. */ + scn->flags |= ELF_F_DIRTY; + + out: + rwlock_unlock (scn->elf->lock); + + return result; +} diff --git a/libelf/gelf_update_verdaux.c b/libelf/gelf_update_verdaux.c new file mode 100644 index 0000000..e21428e --- /dev/null +++ b/libelf/gelf_update_verdaux.c @@ -0,0 +1,69 @@ +/* Update additional symbol version definition information. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +gelf_update_verdaux (data, offset, src) + Elf_Data *data; + int offset; + GElf_Verdaux *src; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + + if (data == NULL) + return 0; + + /* The types for 32 and 64 bit are the same. Lucky us. */ + assert (sizeof (GElf_Verdaux) == sizeof (Elf32_Verdaux)); + assert (sizeof (GElf_Verdaux) == sizeof (Elf64_Verdaux)); + + /* Check whether we have to resize the data buffer. */ + if (unlikely (offset < 0) + || unlikely ((offset + sizeof (GElf_Verdaux)) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_VDEF)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + rwlock_wrlock (data_scn->s->elf->lock); + + memcpy ((char *) data_scn->d.d_buf + offset, src, sizeof (GElf_Verdaux)); + + /* Mark the section as modified. */ + data_scn->s->flags |= ELF_F_DIRTY; + + rwlock_unlock (data_scn->s->elf->lock); + + return 1; +} diff --git a/libelf/gelf_update_verdef.c b/libelf/gelf_update_verdef.c new file mode 100644 index 0000000..833a058 --- /dev/null +++ b/libelf/gelf_update_verdef.c @@ -0,0 +1,69 @@ +/* Update symbol version definition information. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +gelf_update_verdef (data, offset, src) + Elf_Data *data; + int offset; + GElf_Verdef *src; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + + if (data == NULL) + return 0; + + /* The types for 32 and 64 bit are the same. Lucky us. */ + assert (sizeof (GElf_Verdef) == sizeof (Elf32_Verdef)); + assert (sizeof (GElf_Verdef) == sizeof (Elf64_Verdef)); + + /* Check whether we have to resize the data buffer. */ + if (unlikely (offset < 0) + || unlikely ((offset + sizeof (GElf_Verdef)) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_VDEF)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + rwlock_wrlock (data_scn->s->elf->lock); + + memcpy ((char *) data_scn->d.d_buf + offset, src, sizeof (GElf_Verdef)); + + /* Mark the section as modified. */ + data_scn->s->flags |= ELF_F_DIRTY; + + rwlock_unlock (data_scn->s->elf->lock); + + return 1; +} diff --git a/libelf/gelf_update_vernaux.c b/libelf/gelf_update_vernaux.c new file mode 100644 index 0000000..3f506d4 --- /dev/null +++ b/libelf/gelf_update_vernaux.c @@ -0,0 +1,69 @@ +/* Update additional required symbol version information. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +gelf_update_vernaux (data, offset, src) + Elf_Data *data; + int offset; + GElf_Vernaux *src; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + + if (data == NULL) + return 0; + + /* The types for 32 and 64 bit are the same. Lucky us. */ + assert (sizeof (GElf_Vernaux) == sizeof (Elf32_Vernaux)); + assert (sizeof (GElf_Vernaux) == sizeof (Elf64_Vernaux)); + + /* Check whether we have to resize the data buffer. */ + if (unlikely (offset < 0) + || unlikely ((offset + sizeof (GElf_Vernaux)) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_VNEED)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + rwlock_wrlock (data_scn->s->elf->lock); + + memcpy ((char *) data_scn->d.d_buf + offset, src, sizeof (GElf_Vernaux)); + + /* Mark the section as modified. */ + data_scn->s->flags |= ELF_F_DIRTY; + + rwlock_unlock (data_scn->s->elf->lock); + + return 1; +} diff --git a/libelf/gelf_update_verneed.c b/libelf/gelf_update_verneed.c new file mode 100644 index 0000000..6fccd93 --- /dev/null +++ b/libelf/gelf_update_verneed.c @@ -0,0 +1,69 @@ +/* Update required symbol version information. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +gelf_update_verneed (data, offset, src) + Elf_Data *data; + int offset; + GElf_Verneed *src; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + + if (data == NULL) + return 0; + + /* The types for 32 and 64 bit are the same. Lucky us. */ + assert (sizeof (GElf_Verneed) == sizeof (Elf32_Verneed)); + assert (sizeof (GElf_Verneed) == sizeof (Elf64_Verneed)); + + /* Check whether we have to resize the data buffer. */ + if (unlikely (offset < 0) + || unlikely ((offset + sizeof (GElf_Verneed)) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_VNEED)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + rwlock_wrlock (data_scn->s->elf->lock); + + memcpy ((char *) data_scn->d.d_buf + offset, src, sizeof (GElf_Verneed)); + + /* Mark the section as modified. */ + data_scn->s->flags |= ELF_F_DIRTY; + + rwlock_unlock (data_scn->s->elf->lock); + + return 1; +} diff --git a/libelf/gelf_update_versym.c b/libelf/gelf_update_versym.c new file mode 100644 index 0000000..404d5bc --- /dev/null +++ b/libelf/gelf_update_versym.c @@ -0,0 +1,69 @@ +/* Update symbol version information. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + + +int +gelf_update_versym (data, ndx, src) + Elf_Data *data; + int ndx; + GElf_Versym *src; +{ + Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data; + + if (data == NULL) + return 0; + + /* The types for 32 and 64 bit are the same. Lucky us. */ + assert (sizeof (GElf_Versym) == sizeof (Elf32_Versym)); + assert (sizeof (GElf_Versym) == sizeof (Elf64_Versym)); + + /* Check whether we have to resize the data buffer. */ + if (unlikely (ndx < 0) + || unlikely ((ndx + 1) * sizeof (GElf_Versym) > data_scn->d.d_size)) + { + __libelf_seterrno (ELF_E_INVALID_INDEX); + return 0; + } + + if (unlikely (data_scn->d.d_type != ELF_T_HALF)) + { + /* The type of the data better should match. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return 0; + } + + rwlock_wrlock (data_scn->s->elf->lock); + + ((GElf_Versym *) data_scn->d.d_buf)[ndx] = *src; + + /* Mark the section as modified. */ + data_scn->s->flags |= ELF_F_DIRTY; + + rwlock_unlock (data_scn->s->elf->lock); + + return 1; +} diff --git a/libelf/gelf_xlate.c b/libelf/gelf_xlate.c new file mode 100644 index 0000000..bbb133a --- /dev/null +++ b/libelf/gelf_xlate.c @@ -0,0 +1,182 @@ +/* Transformation functions for ELF data types. + Copyright (C) 1998, 1999, 2000, 2002, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include + +#include "libelfP.h" + +#ifndef LIBELFBITS +# define LIBELFBITS 32 +#endif + + +/* Well, what shall I say. Nothing to do here. */ +#define elf_cvt_Byte(dest, src, n) \ + (__builtin_constant_p (n) && (n) == 1 \ + ? (void) (*((char *) (dest)) = *((char *) (src))) \ + : Elf32_cvt_Byte (dest, src, n)) +static void +(elf_cvt_Byte) (void *dest, const void *src, size_t n, + int encode __attribute__ ((unused))) +{ + memmove (dest, src, n); +} + + +/* We'll optimize the definition of the conversion functions here a + bit. We need only functions for 16, 32, and 64 bits. The + functions referenced in the table will be aliases for one of these + functions. Which one is decided by the ELFxx_FSZ_type. */ +#define LEN2_SWAP(Src) bswap_16 (*((uint16_t *) Src)) +#define word2_t uint16_t + +#define LEN4_SWAP(Src) bswap_32 (*((uint32_t *) Src)) +#define word4_t uint32_t + +#define LEN8_SWAP(Src) bswap_64 (*((uint64_t *) Src)) +#define word8_t uint64_t + + +/* Now define the conversion functions for the basic types. We use here + the fact that file and memory types are the same and that we have the + ELFxx_FSZ_* macros. + + At the same time we define inline functions which we will use to + convert the complex types. */ +#define FUNDAMENTAL(NAME, Name, Bits) \ + INLINE2 (ELFW2(Bits,FSZ_##NAME), ElfW2(Bits,cvt_##Name), ElfW2(Bits,Name)) +#define INLINE2(Bytes, FName, TName) \ + INLINE3 (Bytes, FName, TName) +#define INLINE3(Bytes, FName, TName) \ + static void FName (void *dest, const void *ptr, size_t len, \ + int encode __attribute__ ((unused))) \ + { \ + size_t n = len / sizeof (TName); \ + if (dest < ptr) \ + { \ + word##Bytes##_t *tdest = (word##Bytes##_t *) dest; \ + const word##Bytes##_t *tptr = (const word##Bytes##_t *) ptr; \ + while (n-- > 0) \ + { \ + *tdest++ = LEN##Bytes##_SWAP (tptr); \ + tptr++; \ + } \ + } \ + else \ + { \ + word##Bytes##_t *tdest = (word##Bytes##_t *) dest + n; \ + const word##Bytes##_t *tptr = (const word##Bytes##_t *) ptr + n; \ + while (n-- > 0) \ + { \ + --tptr; \ + *--tdest = LEN##Bytes##_SWAP (tptr); \ + } \ + } \ + } \ + \ + static inline void FName##1 (void *dest, const void *ptr) \ + { \ + *((word##Bytes##_t *) dest) = \ + LEN##Bytes##_SWAP ((((word##Bytes##_t *) ptr))); \ + } + + +/* Now the tricky part: define the transformation functions for the + complex types. We will use the definitions of the types in + abstract.h. */ +#define START(Bits, Name, EName) \ + static void \ + ElfW2 (Bits, cvt_##Name) (void *dest, const void *src, size_t len, \ + int encode __attribute__ ((unused))) \ + { ElfW2(Bits, Name) *tdest = (ElfW2(Bits, Name) *) dest; \ + ElfW2(Bits, Name) *tsrc = (ElfW2(Bits, Name) *) src; \ + size_t n; \ + for (n = len / sizeof (ElfW2(Bits, Name)); n > 0; ++tdest, ++tsrc, --n) { +#define END(Bits, Name) } } +#define TYPE_EXTRA(Code) +#define TYPE_XLATE(Code) Code +#define TYPE_NAME(Type, Name) TYPE_NAME2 (Type, Name) +#define TYPE_NAME2(Type, Name) Type##1 (&tdest->Name, &tsrc->Name); +#define TYPE(Name, Bits) TYPE2 (Name, Bits) +#define TYPE2(Name, Bits) TYPE3 (Name##Bits) +#define TYPE3(Name) Name (cvt_) + +/* Signal that we are generating conversion functions. */ +#define GENERATE_CONVERSION + +/* First generate the 32-bit conversion functions. */ +#define LIBELFBITS 32 +#include "gelf_xlate.h" + +/* Now generate the 64-bit conversion functions. */ +#define LIBELFBITS 64 +#include "gelf_xlate.h" + + +/* We have a few functions which we must create by hand since the sections + do not contain records of only one type. */ +#include "version_xlate.h" + + +/* Now the externally visible table with the function pointers. */ +const xfct_t __elf_xfctstom[EV_NUM - 1][EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] = +{ + [EV_CURRENT - 1] = { + [EV_CURRENT - 1] = { + [ELFCLASS32 - 1] = { +#define define_xfcts(Bits) \ + [ELF_T_BYTE] = elf_cvt_Byte, \ + [ELF_T_ADDR] = ElfW2(Bits, cvt_Addr), \ + [ELF_T_DYN] = ElfW2(Bits, cvt_Dyn), \ + [ELF_T_EHDR] = ElfW2(Bits, cvt_Ehdr), \ + [ELF_T_HALF] = ElfW2(Bits, cvt_Half), \ + [ELF_T_OFF] = ElfW2(Bits, cvt_Off), \ + [ELF_T_PHDR] = ElfW2(Bits, cvt_Phdr), \ + [ELF_T_RELA] = ElfW2(Bits, cvt_Rela), \ + [ELF_T_REL] = ElfW2(Bits, cvt_Rel), \ + [ELF_T_SHDR] = ElfW2(Bits, cvt_Shdr), \ + [ELF_T_SWORD] = ElfW2(Bits, cvt_Sword), \ + [ELF_T_SYM] = ElfW2(Bits, cvt_Sym), \ + [ELF_T_WORD] = ElfW2(Bits, cvt_Word), \ + [ELF_T_XWORD] = ElfW2(Bits, cvt_Xword), \ + [ELF_T_SXWORD] = ElfW2(Bits, cvt_Sxword), \ + [ELF_T_VDEF] = elf_cvt_Verdef, \ + [ELF_T_VDAUX] = elf_cvt_Verdef, \ + [ELF_T_VNEED] = elf_cvt_Verneed, \ + [ELF_T_VNAUX] = elf_cvt_Verneed, \ + [ELF_T_NHDR] = ElfW2(Bits, cvt_Nhdr), \ + [ELF_T_SYMINFO] = ElfW2(Bits, cvt_Syminfo), \ + [ELF_T_MOVE] = ElfW2(Bits, cvt_Move), \ + [ELF_T_LIB] = ElfW2(Bits, cvt_Lib) + define_xfcts (32) + }, + [ELFCLASS64 - 1] = { + define_xfcts (64) + } + } + } +}; +/* For now we only handle the case where the memory representation is the + same as the file representation. Should this change we have to define + separate functions. For now reuse them. */ +strong_alias (__elf_xfctstom, __elf_xfctstof) diff --git a/libelf/gelf_xlate.h b/libelf/gelf_xlate.h new file mode 100644 index 0000000..42e91c0 --- /dev/null +++ b/libelf/gelf_xlate.h @@ -0,0 +1,43 @@ +/* Helper file for type conversion function generation. + Copyright (C) 1998, 1999, 2000, 2002, 2004 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + + +/* Simple types. */ +FUNDAMENTAL (ADDR, Addr, LIBELFBITS); +FUNDAMENTAL (OFF, Off, LIBELFBITS); +FUNDAMENTAL (HALF, Half, LIBELFBITS); +FUNDAMENTAL (WORD, Word, LIBELFBITS); +FUNDAMENTAL (SWORD, Sword, LIBELFBITS); +FUNDAMENTAL (XWORD, Xword, LIBELFBITS); +FUNDAMENTAL (SXWORD, Sxword, LIBELFBITS); + +/* The structured types. */ +TYPE (Ehdr, LIBELFBITS) +TYPE (Phdr, LIBELFBITS) +TYPE (Shdr, LIBELFBITS) +TYPE (Sym, LIBELFBITS) +TYPE (Rel, LIBELFBITS) +TYPE (Rela, LIBELFBITS) +TYPE (Note, LIBELFBITS) +TYPE (Dyn, LIBELFBITS) +TYPE (Syminfo, LIBELFBITS) +TYPE (Move, LIBELFBITS) +TYPE (Lib, LIBELFBITS) + + +/* Prepare for the next round. */ +#undef LIBELFBITS diff --git a/libelf/gelf_xlatetof.c b/libelf/gelf_xlatetof.c new file mode 100644 index 0000000..53cfae2 --- /dev/null +++ b/libelf/gelf_xlatetof.c @@ -0,0 +1,41 @@ +/* Convert from memory to file representation. Generic ELF version. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +Elf_Data * +gelf_xlatetof (elf, dest, src, encode) + Elf *elf; + Elf_Data *dest; + const Elf_Data * src; + unsigned int encode; +{ + if (elf == NULL) + return NULL; + + return (elf->class == ELFCLASS32 + ? INTUSE(elf32_xlatetof) (dest, src, encode) + : INTUSE(elf64_xlatetof) (dest, src, encode)); +} diff --git a/libelf/gelf_xlatetom.c b/libelf/gelf_xlatetom.c new file mode 100644 index 0000000..9295ee0 --- /dev/null +++ b/libelf/gelf_xlatetom.c @@ -0,0 +1,41 @@ +/* Convert from file to memory representation. Generic ELF version. + Copyright (C) 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include "libelfP.h" + + +Elf_Data * +gelf_xlatetom (elf, dest, src, encode) + Elf *elf; + Elf_Data *dest; + const Elf_Data * src; + unsigned int encode; +{ + if (elf == NULL) + return NULL; + + return (elf->class == ELFCLASS32 + ? INTUSE(elf32_xlatetom) (dest, src, encode) + : INTUSE(elf64_xlatetom) (dest, src, encode)); +} diff --git a/libelf/libelf.h b/libelf/libelf.h new file mode 100644 index 0000000..5b3dc00 --- /dev/null +++ b/libelf/libelf.h @@ -0,0 +1,343 @@ +/* Interface for libelf. + Copyright (C) 1998, 1999, 2000, 2002, 2004 Red Hat, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _LIBELF_H +#define _LIBELF_H 1 + +#include + +/* Get the ELF types. */ +#include + + +/* Known translation types. */ +typedef enum +{ + ELF_T_BYTE, /* unsigned char */ + ELF_T_ADDR, /* Elf32_Addr, Elf64_Addr, ... */ + ELF_T_DYN, /* Dynamic section record. */ + ELF_T_EHDR, /* ELF header. */ + ELF_T_HALF, /* Elf32_Half, Elf64_Half, ... */ + ELF_T_OFF, /* Elf32_Off, Elf64_Off, ... */ + ELF_T_PHDR, /* Program header. */ + ELF_T_RELA, /* Relocation entry with addend. */ + ELF_T_REL, /* Relocation entry. */ + ELF_T_SHDR, /* Section header. */ + ELF_T_SWORD, /* Elf32_Sword, Elf64_Sword, ... */ + ELF_T_SYM, /* Symbol record. */ + ELF_T_WORD, /* Elf32_Word, Elf64_Word, ... */ + ELF_T_XWORD, /* Elf32_Xword, Elf64_Xword, ... */ + ELF_T_SXWORD, /* Elf32_Sxword, Elf64_Sxword, ... */ + ELF_T_VDEF, /* Elf32_Verdef, Elf64_Verdef, ... */ + ELF_T_VDAUX, /* Elf32_Verdaux, Elf64_Verdaux, ... */ + ELF_T_VNEED, /* Elf32_Verneed, Elf64_Verneed, ... */ + ELF_T_VNAUX, /* Elf32_Vernaux, Elf64_Vernaux, ... */ + ELF_T_NHDR, /* Elf32_Nhdr, Elf64_Nhdr, ... */ + ELF_T_SYMINFO, /* Elf32_Syminfo, Elf64_Syminfo, ... */ + ELF_T_MOVE, /* Elf32_Move, Elf64_Move, ... */ + ELF_T_LIB, /* Elf32_Lib, Elf64_Lib, ... */ + /* Keep this the last entry. */ + ELF_T_NUM +} Elf_Type; + +/* Descriptor for data to be converted to or from memory format. */ +typedef struct +{ + void *d_buf; /* Pointer to the actual data. */ + Elf_Type d_type; /* Type of this piece of data. */ + unsigned int d_version; /* ELF version. */ + size_t d_size; /* Size in bytes. */ + off_t d_off; /* Offset into section. */ + size_t d_align; /* Alignment in section. */ +} Elf_Data; + + +/* Commands for `...'. */ +typedef enum +{ + ELF_C_NULL, /* Nothing, terminate, or compute only. */ + ELF_C_READ, /* Read .. */ + ELF_C_RDWR, /* Read and write .. */ + ELF_C_WRITE, /* Write .. */ + ELF_C_CLR, /* Clear flag. */ + ELF_C_SET, /* Set flag. */ + ELF_C_FDDONE, /* Signal that file descriptor will not be + used anymore. */ + ELF_C_FDREAD, /* Read rest of data so that file descriptor + is not used anymore. */ + /* The following are extensions. */ + ELF_C_READ_MMAP, /* Read, but mmap the file if possible. */ + ELF_C_RDWR_MMAP, /* Read and write, with mmap. */ + ELF_C_WRITE_MMAP, /* Write, with mmap. */ + ELF_C_READ_MMAP_PRIVATE, /* Read, but memory is writable, results are + not written to the file. */ + ELF_C_EMPTY, /* Copy basic file data but not the content. */ + /* Keep this the last entry. */ + ELF_C_NUM +} Elf_Cmd; + + +/* Flags for the ELF structures. */ +enum +{ + ELF_F_DIRTY = 0x1, +#define ELF_F_DIRTY ELF_F_DIRTY + ELF_F_LAYOUT = 0x4, +#define ELF_F_LAYOUT ELF_F_LAYOUT + ELF_F_PERMISSIVE = 0x8 +#define ELF_F_PERMISSIVE ELF_F_PERMISSIVE +}; + + +/* Identification values for recognized object files. */ +typedef enum +{ + ELF_K_NONE, /* Unknown. */ + ELF_K_AR, /* Archive. */ + ELF_K_COFF, /* Stupid old COFF. */ + ELF_K_ELF, /* ELF file. */ + /* Keep this the last entry. */ + ELF_K_NUM +} Elf_Kind; + + +/* Archive member header. */ +typedef struct +{ + char *ar_name; /* Name of archive member. */ + time_t ar_date; /* File date. */ + uid_t ar_uid; /* User ID. */ + gid_t ar_gid; /* Group ID. */ + mode_t ar_mode; /* File mode. */ + off_t ar_size; /* File size. */ + char *ar_rawname; /* Original name of archive member. */ +} Elf_Arhdr; + + +/* Archive symbol table entry. */ +typedef struct +{ + char *as_name; /* Symbol name. */ + size_t as_off; /* Offset for this file in the archive. */ + unsigned long int as_hash; /* Hash value of the name. */ +} Elf_Arsym; + + +/* Descriptor for the ELF file. */ +typedef struct Elf Elf; + +/* Descriptor for ELF file section. */ +typedef struct Elf_Scn Elf_Scn; + + +#ifdef __cplusplus +extern "C" { +#endif + +/* Return descriptor for ELF file to work according to CMD. */ +extern Elf *elf_begin (int __fildes, Elf_Cmd __cmd, Elf *__ref); + +/* Create a clone of an existing ELF descriptor. */ + extern Elf *elf_clone (Elf *__elf, Elf_Cmd __cmd); + +/* Create descriptor for memory region. */ +extern Elf *elf_memory (char *__image, size_t __size); + +/* Advance archive descriptor to next element. */ +extern Elf_Cmd elf_next (Elf *__elf); + +/* Free resources allocated for ELF. */ +extern int elf_end (Elf *__elf); + +/* Update ELF descriptor and write file to disk. */ +extern off_t elf_update (Elf *__elf, Elf_Cmd __cmd); + +/* Determine what kind of file is associated with ELF. */ +extern Elf_Kind elf_kind (Elf *__elf) __attribute__ ((__pure__)); + +/* Get the base offset for an object file. */ +extern off_t elf_getbase (Elf *__elf); + + +/* Retrieve file identification data. */ +extern char *elf_getident (Elf *__elf, size_t *__ptr); + +/* Retrieve class-dependent object file header. */ +extern Elf32_Ehdr *elf32_getehdr (Elf *__elf); +/* Similar but this time the binary calls is ELFCLASS64. */ +extern Elf64_Ehdr *elf64_getehdr (Elf *__elf); + +/* Create ELF header if none exists. */ +extern Elf32_Ehdr *elf32_newehdr (Elf *__elf); +/* Similar but this time the binary calls is ELFCLASS64. */ +extern Elf64_Ehdr *elf64_newehdr (Elf *__elf); + +/* Retrieve class-dependent program header table. */ +extern Elf32_Phdr *elf32_getphdr (Elf *__elf); +/* Similar but this time the binary calls is ELFCLASS64. */ +extern Elf64_Phdr *elf64_getphdr (Elf *__elf); + +/* Create ELF program header. */ +extern Elf32_Phdr *elf32_newphdr (Elf *__elf, size_t __cnt); +/* Similar but this time the binary calls is ELFCLASS64. */ +extern Elf64_Phdr *elf64_newphdr (Elf *__elf, size_t __cnt); + + +/* Get section at INDEX. */ +extern Elf_Scn *elf_getscn (Elf *__elf, size_t __index); + +/* Get index of section. */ +extern size_t elf_ndxscn (Elf_Scn *__scn); + +/* Get section with next section index. */ +extern Elf_Scn *elf_nextscn (Elf *__elf, Elf_Scn *__scn); + +/* Create a new section and append it at the end of the table. */ +extern Elf_Scn *elf_newscn (Elf *__elf); + +/* Get the number of sections in the ELF file. If the file uses more + sections than can be represented in the e_shnum field of the ELF + header the information from the sh_size field in the zeroth section + header is used. */ +extern int elf_getshnum (Elf *__elf, size_t *__dst); + + +/* Get the section index of the section header string table in the ELF + file. If the index cannot be represented in the e_shnum field of + the ELF header the information from the sh_link field in the zeroth + section header is used. */ +extern int elf_getshstrndx (Elf *__elf, size_t *__dst); + + +/* Retrieve section header of ELFCLASS32 binary. */ +extern Elf32_Shdr *elf32_getshdr (Elf_Scn *__scn); +/* Similar for ELFCLASS64. */ +extern Elf64_Shdr *elf64_getshdr (Elf_Scn *__scn); + + +/* Set or clear flags for ELF file. */ +extern unsigned int elf_flagelf (Elf *__elf, Elf_Cmd __cmd, + unsigned int __flags); +/* Similarly for the ELF header. */ +extern unsigned int elf_flagehdr (Elf *__elf, Elf_Cmd __cmd, + unsigned int __flags); +/* Similarly for the ELF program header. */ +extern unsigned int elf_flagphdr (Elf *__elf, Elf_Cmd __cmd, + unsigned int __flags); +/* Similarly for the given ELF section. */ +extern unsigned int elf_flagscn (Elf_Scn *__scn, Elf_Cmd __cmd, + unsigned int __flags); +/* Similarly for the given ELF data. */ +extern unsigned int elf_flagdata (Elf_Data *__data, Elf_Cmd __cmd, + unsigned int __flags); +/* Similarly for the given ELF section header. */ +extern unsigned int elf_flagshdr (Elf_Scn *__scn, Elf_Cmd __cmd, + unsigned int __flags); + + +/* Get data from section while translating from file representation + to memory representation. */ +extern Elf_Data *elf_getdata (Elf_Scn *__scn, Elf_Data *__data); + +/* Get uninterpreted section content. */ +extern Elf_Data *elf_rawdata (Elf_Scn *__scn, Elf_Data *__data); + +/* Create new data descriptor for section SCN. */ +extern Elf_Data *elf_newdata (Elf_Scn *__scn); + + +/* Return pointer to string at OFFSET in section INDEX. */ +extern char *elf_strptr (Elf *__elf, size_t __index, size_t __offset); + + +/* Return header of archive. */ +extern Elf_Arhdr *elf_getarhdr (Elf *__elf); + +/* Select archive element at OFFSET. */ +extern size_t elf_rand (Elf *__elf, size_t __offset); + +/* Get symbol table of archhive. */ +extern Elf_Arsym *elf_getarsym (Elf *__elf, size_t *__ptr); + + +/* Control ELF descriptor. */ +extern int elf_cntl (Elf *__elf, Elf_Cmd __cmd); + +/* Retrieve uninterpreted file contents. */ +extern char *elf_rawfile (Elf *__elf, size_t *__ptr); + + +/* Return size of array of COUNT elements of the type denoted by TYPE + in the external representation. The binary class is taken from ELF. + The result is based on version VERSION of the ELF standard. */ +extern size_t elf32_fsize (Elf_Type __type, size_t __count, + unsigned int __version) + __attribute__ ((__const__)); +/* Similar but this time the binary calls is ELFCLASS64. */ +extern size_t elf64_fsize (Elf_Type __type, size_t __count, + unsigned int __version) + __attribute__ ((__const__)); + + +/* Convert data structure from the representation in the file represented + by ELF to their memory representation. */ +extern Elf_Data *elf32_xlatetom (Elf_Data *__dest, const Elf_Data *__src, + unsigned int __encode); +/* Same for 64 bit class. */ +extern Elf_Data *elf64_xlatetom (Elf_Data *__dest, const Elf_Data *__src, + unsigned int __encode); + +/* Convert data structure from to the representation in memory + represented by ELF file representation. */ +extern Elf_Data *elf32_xlatetof (Elf_Data *__dest, const Elf_Data *__src, + unsigned int __encode); +/* Same for 64 bit class. */ +extern Elf_Data *elf64_xlatetof (Elf_Data *__dest, const Elf_Data *__src, + unsigned int __encode); + + +/* Return error code of last failing function call. This value is kept + separately for each thread. */ +extern int elf_errno (void); + +/* Return error string for ERROR. If ERROR is zero, return error string + for most recent error or NULL is none occurred. If ERROR is -1 the + behaviour is similar to the last case except that not NULL but a legal + string is returned. */ +extern const char *elf_errmsg (int __error); + + +/* Coordinate ELF library and application versions. */ +extern unsigned int elf_version (unsigned int __version); + +/* Set fill bytes used to fill holes in data structures. */ +extern void elf_fill (int __fill); + +/* Compute hash value. */ +extern unsigned long int elf_hash (const char *__string) + __attribute__ ((__pure__)); + + +/* Compute simple checksum from permanent parts of the ELF file. */ +extern long int elf32_checksum (Elf *__elf); +/* Similar but this time the binary calls is ELFCLASS64. */ +extern long int elf64_checksum (Elf *__elf); + +#ifdef __cplusplus +} +#endif + +#endif /* libelf.h */ diff --git a/libelf/libelf.map b/libelf/libelf.map new file mode 100644 index 0000000..f416da7 --- /dev/null +++ b/libelf/libelf.map @@ -0,0 +1,106 @@ +ELFUTILS_1.0 { + global: + elf32_checksum; + elf32_fsize; + elf32_getehdr; + elf32_getphdr; + elf32_getshdr; + elf32_newehdr; + elf32_newphdr; + elf32_xlatetof; + elf32_xlatetom; + elf64_checksum; + elf64_fsize; + elf64_getehdr; + elf64_getphdr; + elf64_getshdr; + elf64_newehdr; + elf64_newphdr; + elf64_xlatetof; + elf64_xlatetom; + elf_begin; + elf_clone; + elf_cntl; + elf_end; + elf_errmsg; + elf_errno; + elf_fill; + elf_flagdata; + elf_flagehdr; + elf_flagelf; + elf_flagphdr; + elf_flagscn; + elf_flagshdr; + elf_getarhdr; + elf_getarsym; + elf_getbase; + elf_getdata; + elf_getident; + elf_getscn; + elf_getshnum; + elf_getshstrndx; + elf_hash; + elf_kind; + elf_memory; + elf_ndxscn; + elf_newdata; + elf_newscn; + elf_next; + elf_nextscn; + elf_rand; + elf_rawdata; + elf_rawfile; + elf_scncnt; + elf_strptr; + elf_update; + elf_version; + gelf_checksum; + gelf_freechunk; + gelf_fsize; + gelf_getclass; + gelf_getdyn; + gelf_getehdr; + gelf_getmove; + gelf_getphdr; + gelf_getrel; + gelf_getrela; + gelf_getshdr; + gelf_getsym; + gelf_getsyminfo; + gelf_getsymshndx; + gelf_getverdaux; + gelf_getverdef; + gelf_getvernaux; + gelf_getverneed; + gelf_getversym; + gelf_newehdr; + gelf_newphdr; + gelf_rawchunk; + gelf_update_dyn; + gelf_update_ehdr; + gelf_update_move; + gelf_update_phdr; + gelf_update_rel; + gelf_update_rela; + gelf_update_shdr; + gelf_update_sym; + gelf_update_syminfo; + gelf_update_symshndx; + gelf_update_verdaux; + gelf_update_verdef; + gelf_update_vernaux; + gelf_update_verneed; + gelf_update_versym; + gelf_xlatetof; + gelf_xlatetom; + nlist; + + local: + *; +}; + +ELFUTILS_1.1 { + global: + gelf_getlib; + gelf_update_lib; +} ELFUTILS_1.0; diff --git a/libelf/libelfP.h b/libelf/libelfP.h new file mode 100644 index 0000000..100f349 --- /dev/null +++ b/libelf/libelfP.h @@ -0,0 +1,534 @@ +/* Internal interfaces for libelf. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2005 Red Hat, Inc. + Contributed by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _LIBELFP_H +#define _LIBELFP_H 1 + +#include +#include +#include + +/* gettext helper macros. */ +#define _(Str) dgettext ("libelf", Str) + + +/* Helper Macros to write 32 bit and 64 bit functions. */ +#define __elfw2_(Bits, Name) __elf##Bits##_##Name +#define elfw2_(Bits, Name) elf##Bits##_##Name +#define ElfW2_(Bits, Name) Elf##Bits##_##Name +#define ELFW2_(Bits, Name) ELF##Bits##_##Name +#define ELFW_(Name, Bits) Name##Bits +#define __elfw2(Bits, Name) __elfw2_(Bits, Name) +#define elfw2(Bits, Name) elfw2_(Bits, Name) +#define ElfW2(Bits, Name) ElfW2_(Bits, Name) +#define ELFW2(Bits, Name) ELFW2_(Bits, Name) +#define ELFW(Name, Bits) ELFW_(Name, Bits) + + +/* Sizes of the external types, for 32 bits objects. */ +#define ELF32_FSZ_ADDR 4 +#define ELF32_FSZ_OFF 4 +#define ELF32_FSZ_HALF 2 +#define ELF32_FSZ_WORD 4 +#define ELF32_FSZ_SWORD 4 +#define ELF32_FSZ_XWORD 8 +#define ELF32_FSZ_SXWORD 8 + +/* Same for 64 bits objects. */ +#define ELF64_FSZ_ADDR 8 +#define ELF64_FSZ_OFF 8 +#define ELF64_FSZ_HALF 2 +#define ELF64_FSZ_WORD 4 +#define ELF64_FSZ_SWORD 4 +#define ELF64_FSZ_XWORD 8 +#define ELF64_FSZ_SXWORD 8 + + +/* This is an extension of the ELF_F_* enumeration. The values here are + not part of the library interface, they are only used internally. */ +enum +{ + ELF_F_MMAPPED = 0x40, + ELF_F_MALLOCED = 0x80, + ELF_F_FILEDATA = 0x100 +}; + + +/* Get definition of all the external types. */ +#include "exttypes.h" + + +/* Error values. */ +enum +{ + ELF_E_NOERROR = 0, + ELF_E_UNKNOWN_ERROR, + ELF_E_UNKNOWN_VERSION, + ELF_E_UNKNOWN_TYPE, + ELF_E_INVALID_HANDLE, + ELF_E_SOURCE_SIZE, + ELF_E_DEST_SIZE, + ELF_E_INVALID_ENCODING, + ELF_E_NOMEM, + ELF_E_INVALID_FILE, + ELF_E_INVALID_OP, + ELF_E_NO_VERSION, + ELF_E_INVALID_CMD, + ELF_E_RANGE, + ELF_E_ARCHIVE_FMAG, + ELF_E_INVALID_ARCHIVE, + ELF_E_NO_ARCHIVE, + ELF_E_NO_INDEX, + ELF_E_READ_ERROR, + ELF_E_WRITE_ERROR, + ELF_E_INVALID_CLASS, + ELF_E_INVALID_INDEX, + ELF_E_INVALID_OPERAND, + ELF_E_INVALID_SECTION, + ELF_E_INVALID_COMMAND, + ELF_E_WRONG_ORDER_EHDR, + ELF_E_FD_DISABLED, + ELF_E_FD_MISMATCH, + ELF_E_OFFSET_RANGE, + ELF_E_NOT_NUL_SECTION, + ELF_E_DATA_MISMATCH, + ELF_E_INVALID_SECTION_HEADER, + ELF_E_INVALID_DATA, + ELF_E_DATA_ENCODING, + ELF_E_SECTION_TOO_SMALL, + ELF_E_INVALID_ALIGN, + ELF_E_INVALID_SHENTSIZE, + ELF_E_UPDATE_RO, + ELF_E_NOFILE, + ELF_E_GROUP_NOT_REL, + ELF_E_INVALID_PHDR, + ELF_E_NO_PHDR, + /* Keep this as the last entry. */ + ELF_E_NUM +}; + + +/* The visible `Elf_Data' type is not sufficent for some operations due + to a misdesigned interface. Extend it for internal purposes. */ +typedef struct +{ + Elf_Data d; + Elf_Scn *s; +} Elf_Data_Scn; + + +/* List of `Elf_Data' descriptors. This is what makes up the section + contents. */ +typedef struct Elf_Data_List +{ + /* `data' *must* be the first element in the struct. */ + Elf_Data_Scn data; + struct Elf_Data_List *next; + int flags; +} Elf_Data_List; + + +/* Descriptor for ELF section. */ +struct Elf_Scn +{ + /* We have to distinguish several different situations: + + 1. the section is user created. Therefore there is no file or memory + region to read the data from. Here we have two different subcases: + + a) data was not yet added (before the first `elf_newdata' call) + + b) at least one data set is available + + 2. this is a section from a file/memory region. We have to read the + current content in one data block if we have to. But we don't + read the data until it is necessary. So we have the subcases: + + a) the section in the file has size zero (for whatever reason) + + b) the data of the file is not (yet) read + + c) the data is read and available. + + In addition to this we have different data sets, the raw and the converted + data. This distinction only exists for the data read from the file. + All user-added data set (all but the first when read from the file or + all of them for user-create sections) are the same in both formats. + We don't create the converted data before it is necessary. + + The `data_read' element signals whether data is available in the + raw format. + + If there is data from the file/memory region or if read one data + set is added the `rawdata_list_read' pointer in non-NULL and points + to the last filled data set. `raw_datalist_rear' is therefore NULL + only if there is no data set at all. + + This so far allows to distinguish all but two cases (given that the + `rawdata_list' and `data_list' entries are initialized to zero) is + between not yet loaded data from the file/memory region and a section + with zero size and type ELF_T_BYTE. */ + Elf_Data_List data_list; /* List of data buffers. */ + Elf_Data_List *data_list_rear; /* Pointer to the rear of the data list. */ + + Elf_Data_Scn rawdata; /* Uninterpreted data of the section. */ + + int data_read; /* Nonzero if the section was created by the + user or if the data from the file/memory + is read. */ + + size_t index; /* Index of this section. */ + struct Elf *elf; /* The underlying ELF file. */ + + union + { + Elf32_Shdr *e32; /* Pointer to 32bit section header. */ + Elf64_Shdr *e64; /* Pointer to 64bit section header. */ + } shdr; + + unsigned int shdr_flags; /* Section header modified? */ + unsigned int flags; /* Section changed in size? */ + + char *rawdata_base; /* The unmodified data of the section. */ + char *data_base; /* The converted data of the section. */ + + struct Elf_ScnList *list; /* Pointer the the section list element the + data is in. */ +}; + + +/* List of section. */ +typedef struct Elf_ScnList +{ + unsigned int cnt; /* Number of elements of 'data' used. */ + unsigned int max; /* Number of elements of 'data' allocated. */ + struct Elf_ScnList *next; /* Next block of sections. */ + struct Elf_Scn data[0]; /* Section data. */ +} Elf_ScnList; + + +/* The ELF descriptor. */ +struct Elf +{ + /* What kind of file is underneath (ELF file, archive...). */ + Elf_Kind kind; + + /* Command used to create this descriptor. */ + Elf_Cmd cmd; + + /* The binary class. */ + unsigned int class; + + /* The used file descriptor. -1 if not available anymore. */ + int fildes; + + /* Offset in the archive this file starts or zero. */ + off_t start_offset; + + /* Size of the file in the archive or the entire file size, or ~0 + for an (yet) unknown size. */ + size_t maximum_size; + + /* Address to which the file was mapped. NULL if not mapped. */ + void *map_address; + + /* Describes the way the memory was allocated and if the dirty bit is + signalled it means that the whole file has to be rewritten since + the layout changed. */ + int flags; + + /* When created for an archive member this points to the descriptor + for the archive. */ + Elf *parent; + + /* Lock to handle multithreaded programs. */ + rwlock_define (,lock); + + /* Reference counting for the descriptor. */ + int ref_count; + + struct Elf *next; /* Used in list of archive descriptors. */ + + union + { + struct + { + int ehdr_flags; /* Flags (dirty) for ELF header. */ + int phdr_flags; /* Flags (dirty|malloc) for program header. */ + int shdr_malloced; /* Nonzero if shdr array was allocated. */ + + /* The next fields are only useful when testing for ==/!= NULL. */ + void *ehdr; + void *shdr; + void *phdr; + + Elf_ScnList *scns_last; /* Last element in the section list. + If NULL the data has not yet been + read from the file. */ + unsigned int scnincr; /* Number of sections allocate the last + time. */ + off64_t sizestr_offset; /* Offset of the size string in the parent + if this is an archive member. */ + } elf; + + struct + { + int ehdr_flags; /* Flags (dirty) for ELF header. */ + int phdr_flags; /* Flags (dirty|malloc) for program header. */ + int shdr_malloced; /* Nonzero if shdr array was allocated. */ + + Elf32_Ehdr *ehdr; /* Pointer to the ELF header. This is + never malloced. */ + Elf32_Shdr *shdr; /* Used when reading from a file. */ + Elf32_Phdr *phdr; /* Pointer to the program header array. */ + Elf_ScnList *scns_last; /* Last element in the section list. + If NULL the data has not yet been + read from the file. */ + unsigned int scnincr; /* Number of sections allocate the last + time. */ + off64_t sizestr_offset; /* Offset of the size string in the parent + if this is an archive member. */ + Elf32_Ehdr ehdr_mem; /* Memory used for ELF header when not + mmaped. */ + char __e32scnspad[sizeof (Elf64_Ehdr) - sizeof (Elf32_Ehdr)]; + + /* The section array. */ + Elf_ScnList scns; + } elf32; + + struct + { + int ehdr_flags; /* Flags (dirty) for ELF header. */ + int phdr_flags; /* Flags (dirty|malloc) for program header. */ + int shdr_malloced; /* Nonzero if shdr array was allocated. */ + + Elf64_Ehdr *ehdr; /* Pointer to the ELF header. This is + never malloced. */ + Elf64_Shdr *shdr; /* Used when reading from a file. */ + Elf64_Phdr *phdr; /* Pointer to the program header array. */ + Elf_ScnList *scns_last; /* Last element in the section list. + If NULL the data has not yet been + read from the file. */ + unsigned int scnincr; /* Number of sections allocate the last + time. */ + off64_t sizestr_offset; /* Offset of the size string in the parent + if this is an archive member. */ + Elf64_Ehdr ehdr_mem; /* Memory used for ELF header when not + mmaped. */ + + /* The section array. */ + Elf_ScnList scns; + } elf64; + + struct + { + int has_index; /* Set when file has index. 0 means + undecided, > 0 means it has one. */ + Elf_Arsym *ar_sym; /* Symbol table returned by elf_getarsym. */ + size_t ar_sym_num; /* Number of entries in `ar_sym'. */ + char *long_names; /* If no index is available but long names + are used this elements points to the data.*/ + size_t long_names_len; /* Length of the long name table. */ + off_t offset; /* Offset in file we are currently at. + elf_next() advances this to the next + member of the archive. */ + Elf_Arhdr elf_ar_hdr; /* Structure returned by 'elf_getarhdr'. */ + struct ar_hdr ar_hdr; /* Header read from file. */ + char ar_name[16]; /* NUL terminated ar_name of elf_ar_hdr. */ + char raw_name[17]; /* This is a buffer for the NUL terminated + named raw_name used in the elf_ar_hdr. */ + struct Elf *children; /* List of all descriptors for this archive. */ + } ar; + } state; + + /* There absolutely never must be anything following the union. */ +}; + + +/* Type of the conversion functions. These functions will convert the + byte order. */ +typedef void (*xfct_t) (void *, const void *, size_t, int); + +/* The table with the function pointers. */ +extern const xfct_t __elf_xfctstom[EV_NUM - 1][EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] attribute_hidden; +extern const xfct_t __elf_xfctstof[EV_NUM - 1][EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] attribute_hidden; + + +/* Array with sizes of the external types indexed by ELF version, binary + class, and type. */ +extern const size_t __libelf_type_sizes[EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] attribute_hidden; +/* We often have to access the size for a type in the current version. */ +#if EV_NUM != 2 +# define elf_typesize(class,type,n) \ + elfw2(class,fsize) (type, n, __libelf_version) +#else +# define elf_typesize(class,type,n) \ + (__libelf_type_sizes[EV_CURRENT - 1][ELFW(ELFCLASS,class) - 1][type] * n) +#endif + +/* Currently selected version of the ELF specification. */ +extern unsigned int __libelf_version attribute_hidden; + +/* The byte value used for filling gaps. */ +extern int __libelf_fill_byte attribute_hidden; + +/* Nonzero if the version was set. */ +extern int __libelf_version_initialized attribute_hidden; + + +/* The libelf API does not have such a function but it is still useful. + Get the memory size for the given type. + + These functions cannot be marked internal since they are aliases + of the export elfXX_fsize functions.*/ +extern size_t __elf32_msize (Elf_Type __type, size_t __count, + unsigned int __version); +extern size_t __elf64_msize (Elf_Type __type, size_t __count, + unsigned int __version); + + +/* Create Elf descriptor from memory image. */ +extern Elf *__libelf_read_mmaped_file (int fildes, void *map_address, + off_t offset, size_t maxsize, + Elf_Cmd cmd, Elf *parent) + internal_function; + +/* Set error value. */ +extern void __libelf_seterrno (int value) internal_function; + +/* Get the next archive header. */ +extern int __libelf_next_arhdr (Elf *elf) internal_function; + +/* Read all of the file associated with the descriptor. */ +extern char *__libelf_readall (Elf *elf) internal_function; + +/* Read the complete section table and convert the byte order if necessary. */ +extern int __libelf_readsections (Elf *elf) internal_function; + +/* Store the information for the raw data in the `rawdata_list' element. */ +extern int __libelf_set_rawdata (Elf_Scn *scn) internal_function; + + +/* Helper functions for elf_update. */ +extern off_t __elf32_updatenull (Elf *elf, int *change_bop, size_t shnum) + internal_function; +extern off_t __elf64_updatenull (Elf *elf, int *change_bop, size_t shnum) + internal_function; + +extern int __elf32_updatemmap (Elf *elf, int change_bo, size_t shnum) + internal_function; +extern int __elf64_updatemmap (Elf *elf, int change_bo, size_t shnum) + internal_function; +extern int __elf32_updatefile (Elf *elf, int change_bo, size_t shnum) + internal_function; +extern int __elf64_updatefile (Elf *elf, int change_bo, size_t shnum) + internal_function; + + +/* Alias for exported functions to avoid PLT entries. */ +extern int __elf_end_internal (Elf *__elf); +extern Elf *__elf_begin_internal (int __fildes, Elf_Cmd __cmd, Elf *__ref) + attribute_hidden; +extern Elf32_Ehdr *__elf32_getehdr_internal (Elf *__elf) attribute_hidden; +extern Elf64_Ehdr *__elf64_getehdr_internal (Elf *__elf) attribute_hidden; +extern Elf32_Ehdr *__elf32_newehdr_internal (Elf *__elf) attribute_hidden; +extern Elf64_Ehdr *__elf64_newehdr_internal (Elf *__elf) attribute_hidden; +extern Elf32_Phdr *__elf32_getphdr_internal (Elf *__elf) attribute_hidden; +extern Elf64_Phdr *__elf64_getphdr_internal (Elf *__elf) attribute_hidden; +extern Elf32_Phdr *__elf32_newphdr_internal (Elf *__elf, size_t __cnt) + attribute_hidden; +extern Elf64_Phdr *__elf64_newphdr_internal (Elf *__elf, size_t __cnt) + attribute_hidden; +extern int __elf_getshnum_internal (Elf *__elf, size_t *__dst) + attribute_hidden; +extern int __elf_getshstrndx_internal (Elf *__elf, size_t *__dst) + attribute_hidden; +extern Elf32_Shdr *__elf32_getshdr_internal (Elf_Scn *__scn) attribute_hidden; +extern Elf64_Shdr *__elf64_getshdr_internal (Elf_Scn *__scn) attribute_hidden; +extern Elf_Scn *__elf_getscn_internal (Elf *__elf, size_t __index) + attribute_hidden; +extern Elf_Scn *__elf_nextscn_internal (Elf *__elf, Elf_Scn *__scn) + attribute_hidden; +extern Elf_Data *__elf_getdata_internal (Elf_Scn *__scn, Elf_Data *__data) + attribute_hidden; +extern Elf_Data *__elf_rawdata_internal (Elf_Scn *__scn, Elf_Data *__data) + attribute_hidden; +extern char *__elf_strptr_internal (Elf *__elf, size_t __index, + size_t __offset) attribute_hidden; +extern Elf_Data *__elf32_xlatetom_internal (Elf_Data *__dest, + const Elf_Data *__src, + unsigned int __encode) + attribute_hidden; +extern Elf_Data *__elf64_xlatetom_internal (Elf_Data *__dest, + const Elf_Data *__src, + unsigned int __encode) + attribute_hidden; +extern Elf_Data *__elf32_xlatetof_internal (Elf_Data *__dest, + const Elf_Data *__src, + unsigned int __encode) + attribute_hidden; +extern Elf_Data *__elf64_xlatetof_internal (Elf_Data *__dest, + const Elf_Data *__src, + unsigned int __encode) + attribute_hidden; +extern unsigned int __elf_version_internal (unsigned int __version) + attribute_hidden; +extern unsigned long int __elf_hash_internal (const char *__string) + __attribute__ ((__pure__, visibility ("hidden"))); +extern long int __elf32_checksum_internal (Elf *__elf) attribute_hidden; +extern long int __elf64_checksum_internal (Elf *__elf) attribute_hidden; + + +extern GElf_Ehdr *__gelf_getehdr_internal (Elf *__elf, GElf_Ehdr *__dest); +extern size_t __gelf_fsize_internal (Elf *__elf, Elf_Type __type, + size_t __count, unsigned int __version) + attribute_hidden; +extern GElf_Shdr *__gelf_getshdr_internal (Elf_Scn *__scn, GElf_Shdr *__dst) + attribute_hidden; +extern GElf_Sym *__gelf_getsym_internal (Elf_Data *__data, int __ndx, + GElf_Sym *__dst) attribute_hidden; + + +extern uint32_t __libelf_crc32 (uint32_t crc, unsigned char *buf, size_t len) + attribute_hidden; + + +/* We often have to update a flag iff a value changed. Make this + convenient. None of the parameters must have a side effect. */ +#ifdef __GNUC__ +# define update_if_changed(var, exp, flag) \ + do { \ + __typeof__ (var) *_var = &(var); \ + __typeof__ (exp) _exp = (exp); \ + if (*_var != _exp) \ + { \ + *_var = _exp; \ + (flag) |= ELF_F_DIRTY; \ + } \ + } while (0) +#else +# define update_if_changed(var, exp, flag) \ + do { \ + if ((var) != (exp)) \ + { \ + (var) = (exp); \ + (flag) |= ELF_F_DIRTY; \ + } \ + } while (0) +#endif + +#endif /* libelfP.h */ diff --git a/libelf/libelf_crc32.c b/libelf/libelf_crc32.c new file mode 100644 index 0000000..6971be0 --- /dev/null +++ b/libelf/libelf_crc32.c @@ -0,0 +1,23 @@ +/* Copyright (C) 2002 Red Hat, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#define crc32 attribute_hidden __libelf_crc32 +#define LIB_SYSTEM_H 1 +#include +#include "../lib/crc32.c" diff --git a/libelf/libelf_next_prime.c b/libelf/libelf_next_prime.c new file mode 100644 index 0000000..4a71c47 --- /dev/null +++ b/libelf/libelf_next_prime.c @@ -0,0 +1,21 @@ +/* Copyright (C) 2002 Red Hat, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#define next_prime attribute_hidden __libelf_next_prime +#include "../lib/next_prime.c" diff --git a/libelf/nlist.c b/libelf/nlist.c new file mode 100644 index 0000000..b9ff213 --- /dev/null +++ b/libelf/nlist.c @@ -0,0 +1,224 @@ +/* Extract symbol list from binary. + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include + +#include "libelfP.h" + + +struct hashentry +{ + const char *str; + GElf_Sym sym; +}; +#define TYPE struct hashentry +/* XXX Use a better hash function some day. */ +#define HASHFCT(str, len) INTUSE(elf_hash) (str) +#define COMPARE(p1, p2) strcmp ((p1)->str, (p2)->str) +#define CLASS static +#define PREFIX nlist_ +#define xcalloc(n, m) calloc (n, m) +#define next_prime(s) __libelf_next_prime (s) +#include + + +int +nlist (const char *filename, struct nlist *nl) +{ + int fd; + Elf *elf; + Elf_Scn *scn = NULL; + Elf_Scn *symscn = NULL; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = NULL; + Elf_Data *data; + struct nlist_fshash *table; + size_t nsyms; + size_t cnt; + + /* Open the file. */ + fd = open (filename, O_RDONLY); + if (fd == -1) + { + __libelf_seterrno (ELF_E_NOFILE); + goto fail; + } + + /* For compatibility reasons (`nlist' existed before ELF and libelf) + we don't expect the caller to set the ELF version. Do this here + if it hasn't happened yet. */ + if (__libelf_version_initialized == 0) + INTUSE(elf_version) (EV_CURRENT); + + /* Now get an ELF descriptor. */ + elf = INTUSE(elf_begin) (fd, ELF_C_READ_MMAP, NULL); + if (elf == NULL) + goto fail; + + /* Find a symbol table. We prefer the real symbol table but if it + does not exist use the dynamic symbol table. */ + while ((scn = INTUSE(elf_nextscn) (elf, scn)) != NULL) + { + shdr = INTUSE(gelf_getshdr) (scn, &shdr_mem); + if (shdr == NULL) + goto fail_close; + + /* That is what we are looking for. */ + if (shdr->sh_type == SHT_SYMTAB) + { + symscn = scn; + break; + } + + /* Better than nothing. Remember this section. */ + if (shdr->sh_type == SHT_DYNSYM) + symscn = scn; + } + + if (symscn == NULL) + /* We haven't found anything. Fail. */ + goto fail_close; + + /* Re-get the section header in case we found only the dynamic symbol + table. */ + if (scn == NULL) + shdr = INTUSE(gelf_getshdr) (symscn, &shdr_mem); + /* SHDR->SH_LINK now contains the index of the string section. */ + + /* Get the data for the symbol section. */ + data = INTUSE(elf_getdata) (symscn, NULL); + if (data == NULL) + goto fail_close; + + /* How many symbols are there? */ + nsyms = (shdr->sh_size + / INTUSE(gelf_fsize) (elf, ELF_T_SYM, 1, data->d_version)); + + /* Create the hash table. */ + table = nlist_fshash_init (nsyms); + if (table == NULL) + { + __libelf_seterrno (ELF_E_NOMEM); + goto fail_close; + } + + /* Iterate over all the symbols in the section. */ + for (cnt = 0; cnt < nsyms; ++cnt) + { + struct hashentry mem; + GElf_Sym *sym; + + /* Get the symbol. */ + sym = INTUSE(gelf_getsym) (data, cnt, &mem.sym); + if (sym == NULL) + goto fail_dealloc; + + /* Get the name of the symbol. */ + mem.str = INTUSE(elf_strptr) (elf, shdr->sh_link, sym->st_name); + if (mem.str == NULL) + goto fail_dealloc; + + /* Don't allow zero-length strings. */ + if (mem.str[0] == '\0') + continue; + + /* And add it to the hash table. Note that we are using the + overwrite version. This will ensure that + a) global symbols are preferred over local symbols since + they are all located at the end + b) if there are multiple local symbols with the same name + the last one is used. + */ + (void) nlist_fshash_overwrite (table, mem.str, 0, &mem); + } + + /* Now it is time to look for the symbols the user asked for. + XXX What is a `null name/null string'? This is what the + standard says terminates the list. Is it a null pointer + or a zero-length string? We test for both... */ + while (nl->n_name != NULL && nl->n_name[0] != '\0') + { + struct hashentry search; + const struct hashentry *found; + + /* Search for a matching entry in the hash table. */ + search.str = nl->n_name; + found = nlist_fshash_find (table, nl->n_name, 0, &search); + + if (found != NULL) + { + /* Found it. */ + nl->n_value = found->sym.st_value; + nl->n_scnum = found->sym.st_shndx; + nl->n_type = GELF_ST_TYPE (found->sym.st_info); + /* XXX What shall we fill in the next fields? */ + nl->n_sclass = 0; + nl->n_numaux = 0; + } + else + { + /* Not there. */ + nl->n_value = 0; + nl->n_scnum = 0; + nl->n_type = 0; + nl->n_sclass = 0; + nl->n_numaux = 0; + } + + /* Next search request. */ + ++nl; + } + + /* Free the resources. */ + nlist_fshash_fini (table); + + /* We do not need the ELF descriptor anymore. */ + (void) INTUSE(elf_end) (elf); + + return 0; + + fail_dealloc: + nlist_fshash_fini (table); + + fail_close: + /* We do not need the ELF descriptor anymore. */ + (void) INTUSE(elf_end) (elf); + + fail: + /* We have to set all entries to zero. */ + while (nl->n_name != NULL && nl->n_name[0] != '\0') + { + nl->n_value = 0; + nl->n_scnum = 0; + nl->n_type = 0; + nl->n_sclass = 0; + nl->n_numaux = 0; + + /* Next entry. */ + ++nl; + } + + return -1; +} diff --git a/libelf/nlist.h b/libelf/nlist.h new file mode 100644 index 0000000..298f9a2 --- /dev/null +++ b/libelf/nlist.h @@ -0,0 +1,44 @@ +/* Interface for nlist. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _NLIST_H +#define _NLIST_H 1 + + +/* Symbol list type. */ +struct nlist +{ + char *n_name; /* Symbol name. */ + long int n_value; /* Value of symbol. */ + short int n_scnum; /* Section number found in. */ + unsigned short int n_type; /* Type of symbol. */ + char n_sclass; /* Storage class. */ + char n_numaux; /* Number of auxiliary entries. */ +}; + + +#ifdef __cplusplus +extern "C" { +#endif + +/* Get specified entries from file. */ +extern int nlist (__const char *__filename, struct nlist *__nl); + +#ifdef __cplusplus +} +#endif + +#endif /* nlist.h */ diff --git a/libelf/version_xlate.h b/libelf/version_xlate.h new file mode 100644 index 0000000..2366cbf --- /dev/null +++ b/libelf/version_xlate.h @@ -0,0 +1,208 @@ +/* Conversion functions for versioning information. + Copyright (C) 1998, 1999, 2000, 2002, 2003 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 2. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include +#include + +#include "libelfP.h" + + +static void +elf_cvt_Verdef (void *dest, const void *src, size_t len, int encode) +{ + /* We have two different record types: ElfXX_Verndef and ElfXX_Verdaux. + To recognize them we have to walk the data structure and convert + them one after the other. The ENCODE parameter specifies whether + we are encoding or decoding. When we are encoding we can immediately + use the data in the buffer; if not, we have to decode the data before + using it. */ + size_t def_offset = 0; + GElf_Verdef *ddest; + GElf_Verdef *dsrc; + + /* We rely on the types being all the same size. */ + assert (sizeof (GElf_Verdef) == sizeof (Elf32_Verdef)); + assert (sizeof (GElf_Verdaux) == sizeof (Elf32_Verdaux)); + assert (sizeof (GElf_Verdef) == sizeof (Elf64_Verdef)); + assert (sizeof (GElf_Verdaux) == sizeof (Elf64_Verdaux)); + + if (len == 0) + return; + + do + { + size_t aux_offset; + GElf_Verdaux *asrc; + + /* Test for correct offset. */ + if (def_offset + sizeof (GElf_Verdef) > len) + return; + + /* Work the tree from the first record. */ + ddest = (GElf_Verdef *) ((char *) dest + def_offset); + dsrc = (GElf_Verdef *) ((char *) src + def_offset); + + /* Decode first if necessary. */ + if (! encode) + { + ddest->vd_version = bswap_16 (dsrc->vd_version); + ddest->vd_flags = bswap_16 (dsrc->vd_flags); + ddest->vd_ndx = bswap_16 (dsrc->vd_ndx); + ddest->vd_cnt = bswap_16 (dsrc->vd_cnt); + ddest->vd_hash = bswap_32 (dsrc->vd_hash); + ddest->vd_aux = bswap_32 (dsrc->vd_aux); + ddest->vd_next = bswap_32 (dsrc->vd_next); + + aux_offset = def_offset + ddest->vd_aux; + } + else + aux_offset = def_offset + dsrc->vd_aux; + + /* Handle all the auxiliary records belonging to this definition. */ + do + { + GElf_Verdaux *adest; + + /* Test for correct offset. */ + if (aux_offset + sizeof (GElf_Verdaux) > len) + return; + + adest = (GElf_Verdaux *) ((char *) dest + aux_offset); + asrc = (GElf_Verdaux *) ((char *) src + aux_offset); + + if (encode) + aux_offset += asrc->vda_next; + + adest->vda_name = bswap_32 (asrc->vda_name); + adest->vda_next = bswap_32 (asrc->vda_next); + + if (! encode) + aux_offset += adest->vda_next; + } + while (asrc->vda_next != 0); + + /* Encode now if necessary. */ + if (encode) + { + def_offset += dsrc->vd_next; + + ddest->vd_version = bswap_16 (dsrc->vd_version); + ddest->vd_flags = bswap_16 (dsrc->vd_flags); + ddest->vd_ndx = bswap_16 (dsrc->vd_ndx); + ddest->vd_cnt = bswap_16 (dsrc->vd_cnt); + ddest->vd_hash = bswap_32 (dsrc->vd_hash); + ddest->vd_aux = bswap_32 (dsrc->vd_aux); + ddest->vd_next = bswap_32 (dsrc->vd_next); + } + else + def_offset += ddest->vd_next; + } + while (dsrc->vd_next != 0); +} + + +static void +elf_cvt_Verneed (void *dest, const void *src, size_t len, int encode) +{ + /* We have two different record types: ElfXX_Verndef and ElfXX_Verdaux. + To recognize them we have to walk the data structure and convert + them one after the other. The ENCODE parameter specifies whether + we are encoding or decoding. When we are encoding we can immediately + use the data in the buffer; if not, we have to decode the data before + using it. */ + size_t need_offset = 0; + GElf_Verneed *ndest; + GElf_Verneed *nsrc; + + /* We rely on the types being all the same size. */ + assert (sizeof (GElf_Verneed) == sizeof (Elf32_Verneed)); + assert (sizeof (GElf_Vernaux) == sizeof (Elf32_Vernaux)); + assert (sizeof (GElf_Verneed) == sizeof (Elf64_Verneed)); + assert (sizeof (GElf_Vernaux) == sizeof (Elf64_Vernaux)); + + if (len == 0) + return; + + do + { + size_t aux_offset; + GElf_Vernaux *asrc; + + /* Test for correct offset. */ + if (need_offset + sizeof (GElf_Verneed) > len) + return; + + /* Work the tree from the first record. */ + ndest = (GElf_Verneed *) ((char *) dest + need_offset); + nsrc = (GElf_Verneed *) ((char *) src + need_offset); + + /* Decode first if necessary. */ + if (! encode) + { + ndest->vn_version = bswap_16 (nsrc->vn_version); + ndest->vn_cnt = bswap_16 (nsrc->vn_cnt); + ndest->vn_file = bswap_32 (nsrc->vn_file); + ndest->vn_aux = bswap_32 (nsrc->vn_aux); + ndest->vn_next = bswap_32 (nsrc->vn_next); + + aux_offset = need_offset + ndest->vn_aux; + } + else + aux_offset = need_offset + nsrc->vn_aux; + + /* Handle all the auxiliary records belonging to this requirement. */ + do + { + GElf_Vernaux *adest; + + /* Test for correct offset. */ + if (aux_offset + sizeof (GElf_Vernaux) > len) + return; + + adest = (GElf_Vernaux *) ((char *) dest + aux_offset); + asrc = (GElf_Vernaux *) ((char *) src + aux_offset); + + if (encode) + aux_offset += asrc->vna_next; + + adest->vna_hash = bswap_32 (asrc->vna_hash); + adest->vna_flags = bswap_16 (asrc->vna_flags); + adest->vna_other = bswap_16 (asrc->vna_other); + adest->vna_name = bswap_32 (asrc->vna_name); + adest->vna_next = bswap_32 (asrc->vna_next); + + if (! encode) + aux_offset += adest->vna_next; + } + while (asrc->vna_next != 0); + + /* Encode now if necessary. */ + if (encode) + { + need_offset += nsrc->vn_next; + + ndest->vn_version = bswap_16 (nsrc->vn_version); + ndest->vn_cnt = bswap_16 (nsrc->vn_cnt); + ndest->vn_file = bswap_32 (nsrc->vn_file); + ndest->vn_aux = bswap_32 (nsrc->vn_aux); + ndest->vn_next = bswap_32 (nsrc->vn_next); + } + else + need_offset += ndest->vn_next; + } + while (nsrc->vn_next != 0); +} diff --git a/m4/.cvsignore b/m4/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/m4/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/m4/ChangeLog b/m4/ChangeLog new file mode 100644 index 0000000..112c9c7 --- /dev/null +++ b/m4/ChangeLog @@ -0,0 +1,31 @@ +2005-02-15 Ulrich Drepper + + * Makefile.am (EXTRA_DIST): Remove glibc21.m4, intdiv0.m4, + inttypes.m4, inttypes_h.m4, inttypes-pri.m4, isc-posix.m4, + lib-ld.m4, lib-link.m4, lib-prefix.m4, stdint_h.m4, uintmax_t.m4, + and ulonglong.m4. + * glibc21.m4: Removed. + * inttypes_h.m4: Removed. + * inttypes.m4: Removed. + * inttypes-pri.m4: Removed. + * isc-posix.m4: Removed. + * lib-ld.m4: Removed. + * lib-link.m4: Removed. + * lib-prefix.m4: Removed. + * stdint_h.m4: Removed. + * uintmax_t.m4: Removed. + * ulonglong.m4: Removed. + +2002-03-22 gettextize + + * codeset.m4: Upgrade to gettext-0.11. + * gettext.m4: Upgrade to gettext-0.11. + * glibc21.m4: Upgrade to gettext-0.11. + * iconv.m4: Upgrade to gettext-0.11. + * isc-posix.m4: New file, from gettext-0.11. + * lcmessage.m4: Upgrade to gettext-0.11. + * lib-ld.m4: Upgrade to gettext-0.11. + * lib-link.m4: Upgrade to gettext-0.11. + * lib-prefix.m4: Upgrade to gettext-0.11. + * progtest.m4: Upgrade to gettext-0.11. + * Makefile.am (EXTRA_DIST): Add the new files. diff --git a/m4/Makefile.am b/m4/Makefile.am new file mode 100644 index 0000000..c77e3fb --- /dev/null +++ b/m4/Makefile.am @@ -0,0 +1,20 @@ +## Process this file with automake to produce Makefile.in -*-Makefile-*- +## +## Copyright (C) 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, version 2. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software Foundation, +## Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +## + +##m4-files-begin +EXTRA_DIST = codeset.m4 gettext.m4 iconv.m4 lcmessage.m4 progtest.m4 diff --git a/m4/codeset.m4 b/m4/codeset.m4 new file mode 100644 index 0000000..59535eb --- /dev/null +++ b/m4/codeset.m4 @@ -0,0 +1,23 @@ +# codeset.m4 serial AM1 (gettext-0.10.40) +dnl Copyright (C) 2000-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Bruno Haible. + +AC_DEFUN([AM_LANGINFO_CODESET], +[ + AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset, + [AC_TRY_LINK([#include ], + [char* cs = nl_langinfo(CODESET);], + am_cv_langinfo_codeset=yes, + am_cv_langinfo_codeset=no) + ]) + if test $am_cv_langinfo_codeset = yes; then + AC_DEFINE(HAVE_LANGINFO_CODESET, 1, + [Define if you have and nl_langinfo(CODESET).]) + fi +]) diff --git a/m4/gettext.m4 b/m4/gettext.m4 new file mode 100644 index 0000000..0b758a6 --- /dev/null +++ b/m4/gettext.m4 @@ -0,0 +1,587 @@ +# gettext.m4 serial 16 (gettext-0.11.4) +dnl Copyright (C) 1995-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper , 1995-2000. +dnl Bruno Haible , 2000-2002. + +dnl Macro to add for using GNU gettext. + +dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]). +dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The +dnl default (if it is not specified or empty) is 'no-libtool'. +dnl INTLSYMBOL should be 'external' for packages with no intl directory, +dnl and 'no-libtool' or 'use-libtool' for packages with an intl directory. +dnl If INTLSYMBOL is 'use-libtool', then a libtool library +dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static, +dnl depending on --{enable,disable}-{shared,static} and on the presence of +dnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library +dnl $(top_builddir)/intl/libintl.a will be created. +dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext +dnl implementations (in libc or libintl) without the ngettext() function +dnl will be ignored. If NEEDSYMBOL is specified and is +dnl 'need-formatstring-macros', then GNU gettext implementations that don't +dnl support the ISO C 99 formatstring macros will be ignored. +dnl INTLDIR is used to find the intl libraries. If empty, +dnl the value `$(top_builddir)/intl/' is used. +dnl +dnl The result of the configuration is one of three cases: +dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled +dnl and used. +dnl Catalog format: GNU --> install in $(datadir) +dnl Catalog extension: .mo after installation, .gmo in source tree +dnl 2) GNU gettext has been found in the system's C library. +dnl Catalog format: GNU --> install in $(datadir) +dnl Catalog extension: .mo after installation, .gmo in source tree +dnl 3) No internationalization, always use English msgid. +dnl Catalog format: none +dnl Catalog extension: none +dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur. +dnl The use of .gmo is historical (it was needed to avoid overwriting the +dnl GNU format catalogs when building on a platform with an X/Open gettext), +dnl but we keep it in order not to force irrelevant filename changes on the +dnl maintainers. +dnl +AC_DEFUN([AM_GNU_GETTEXT], +[ + dnl Argument checking. + ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], , + [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT +])])])])]) + ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], , + [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT +])])])]) + define(gt_included_intl, ifelse([$1], [external], [no], [yes])) + define(gt_libtool_suffix_prefix, ifelse([$1], [use-libtool], [l], [])) + + AC_REQUIRE([AM_PO_SUBDIRS])dnl + ifelse(gt_included_intl, yes, [ + AC_REQUIRE([AM_INTL_SUBDIR])dnl + ]) + + dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + AC_REQUIRE([AC_LIB_RPATH]) + + dnl Sometimes libintl requires libiconv, so first search for libiconv. + dnl Ideally we would do this search only after the + dnl if test "$USE_NLS" = "yes"; then + dnl if test "$gt_cv_func_gnugettext_libc" != "yes"; then + dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT + dnl the configure script would need to contain the same shell code + dnl again, outside any 'if'. There are two solutions: + dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'. + dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE. + dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not + dnl documented, we avoid it. + ifelse(gt_included_intl, yes, , [ + AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) + ]) + + AC_MSG_CHECKING([whether NLS is requested]) + dnl Default is enabled NLS + AC_ARG_ENABLE(nls, + [ --disable-nls do not use Native Language Support], + USE_NLS=$enableval, USE_NLS=yes) + AC_MSG_RESULT($USE_NLS) + AC_SUBST(USE_NLS) + + ifelse(gt_included_intl, yes, [ + BUILD_INCLUDED_LIBINTL=no + USE_INCLUDED_LIBINTL=no + ]) + LIBINTL= + LTLIBINTL= + POSUB= + + dnl If we use NLS figure out what method + if test "$USE_NLS" = "yes"; then + gt_use_preinstalled_gnugettext=no + ifelse(gt_included_intl, yes, [ + AC_MSG_CHECKING([whether included gettext is requested]) + AC_ARG_WITH(included-gettext, + [ --with-included-gettext use the GNU gettext library included here], + nls_cv_force_use_gnu_gettext=$withval, + nls_cv_force_use_gnu_gettext=no) + AC_MSG_RESULT($nls_cv_force_use_gnu_gettext) + + nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext" + if test "$nls_cv_force_use_gnu_gettext" != "yes"; then + ]) + dnl User does not insist on using GNU NLS library. Figure out what + dnl to use. If GNU gettext is available we use this. Else we have + dnl to fall back to GNU NLS library. + + dnl Add a version number to the cache macros. + define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1))) + define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc]) + define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl]) + + AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc, + [AC_TRY_LINK([#include +]ifelse([$2], [need-formatstring-macros], +[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION +#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) +#endif +changequote(,)dnl +typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; +changequote([,])dnl +], [])[extern int _nl_msg_cat_cntr; +extern int *_nl_domain_bindings;], + [bindtextdomain ("", ""); +return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings], + gt_cv_func_gnugettext_libc=yes, + gt_cv_func_gnugettext_libc=no)]) + + if test "$gt_cv_func_gnugettext_libc" != "yes"; then + dnl Sometimes libintl requires libiconv, so first search for libiconv. + ifelse(gt_included_intl, yes, , [ + AM_ICONV_LINK + ]) + dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL + dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv]) + dnl because that would add "-liconv" to LIBINTL and LTLIBINTL + dnl even if libiconv doesn't exist. + AC_LIB_LINKFLAGS_BODY([intl]) + AC_CACHE_CHECK([for GNU gettext in libintl], + gt_cv_func_gnugettext_libintl, + [gt_save_CPPFLAGS="$CPPFLAGS" + CPPFLAGS="$CPPFLAGS $INCINTL" + gt_save_LIBS="$LIBS" + LIBS="$LIBS $LIBINTL" + dnl Now see whether libintl exists and does not depend on libiconv. + AC_TRY_LINK([#include +]ifelse([$2], [need-formatstring-macros], +[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION +#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) +#endif +changequote(,)dnl +typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; +changequote([,])dnl +], [])[extern int _nl_msg_cat_cntr; +extern +#ifdef __cplusplus +"C" +#endif +const char *_nl_expand_alias ();], + [bindtextdomain ("", ""); +return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)], + gt_cv_func_gnugettext_libintl=yes, + gt_cv_func_gnugettext_libintl=no) + dnl Now see whether libintl exists and depends on libiconv. + if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then + LIBS="$LIBS $LIBICONV" + AC_TRY_LINK([#include +]ifelse([$2], [need-formatstring-macros], +[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION +#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) +#endif +changequote(,)dnl +typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; +changequote([,])dnl +], [])[extern int _nl_msg_cat_cntr; +extern +#ifdef __cplusplus +"C" +#endif +const char *_nl_expand_alias ();], + [bindtextdomain ("", ""); +return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)], + [LIBINTL="$LIBINTL $LIBICONV" + LTLIBINTL="$LTLIBINTL $LTLIBICONV" + gt_cv_func_gnugettext_libintl=yes + ]) + fi + CPPFLAGS="$gt_save_CPPFLAGS" + LIBS="$gt_save_LIBS"]) + fi + + dnl If an already present or preinstalled GNU gettext() is found, + dnl use it. But if this macro is used in GNU gettext, and GNU + dnl gettext is already preinstalled in libintl, we update this + dnl libintl. (Cf. the install rule in intl/Makefile.in.) + if test "$gt_cv_func_gnugettext_libc" = "yes" \ + || { test "$gt_cv_func_gnugettext_libintl" = "yes" \ + && test "$PACKAGE" != gettext; }; then + gt_use_preinstalled_gnugettext=yes + else + dnl Reset the values set by searching for libintl. + LIBINTL= + LTLIBINTL= + INCINTL= + fi + + ifelse(gt_included_intl, yes, [ + if test "$gt_use_preinstalled_gnugettext" != "yes"; then + dnl GNU gettext is not found in the C library. + dnl Fall back on included GNU gettext library. + nls_cv_use_gnu_gettext=yes + fi + fi + + if test "$nls_cv_use_gnu_gettext" = "yes"; then + dnl Mark actions used to generate GNU NLS library. + INTLOBJS="\$(GETTOBJS)" + BUILD_INCLUDED_LIBINTL=yes + USE_INCLUDED_LIBINTL=yes + LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV" + LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV" + LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'` + fi + + if test "$gt_use_preinstalled_gnugettext" = "yes" \ + || test "$nls_cv_use_gnu_gettext" = "yes"; then + dnl Mark actions to use GNU gettext tools. + CATOBJEXT=.gmo + fi + ]) + + if test "$gt_use_preinstalled_gnugettext" = "yes" \ + || test "$nls_cv_use_gnu_gettext" = "yes"; then + AC_DEFINE(ENABLE_NLS, 1, + [Define to 1 if translation of program messages to the user's native language + is requested.]) + else + USE_NLS=no + fi + fi + + if test "$USE_NLS" = "yes"; then + + if test "$gt_use_preinstalled_gnugettext" = "yes"; then + if test "$gt_cv_func_gnugettext_libintl" = "yes"; then + AC_MSG_CHECKING([how to link with libintl]) + AC_MSG_RESULT([$LIBINTL]) + AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL]) + fi + + dnl For backward compatibility. Some packages may be using this. + AC_DEFINE(HAVE_GETTEXT, 1, + [Define if the GNU gettext() function is already present or preinstalled.]) + AC_DEFINE(HAVE_DCGETTEXT, 1, + [Define if the GNU dcgettext() function is already present or preinstalled.]) + fi + + dnl We need to process the po/ directory. + POSUB=po + fi + + ifelse(gt_included_intl, yes, [ + dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL + dnl to 'yes' because some of the testsuite requires it. + if test "$PACKAGE" = gettext; then + BUILD_INCLUDED_LIBINTL=yes + fi + + dnl Make all variables we use known to autoconf. + AC_SUBST(BUILD_INCLUDED_LIBINTL) + AC_SUBST(USE_INCLUDED_LIBINTL) + AC_SUBST(CATOBJEXT) + AC_SUBST(INTLOBJS) + + dnl For backward compatibility. Some configure.ins may be using this. + nls_cv_header_intl= + nls_cv_header_libgt= + + dnl For backward compatibility. Some Makefiles may be using this. + DATADIRNAME=share + AC_SUBST(DATADIRNAME) + + dnl For backward compatibility. Some Makefiles may be using this. + INSTOBJEXT=.mo + AC_SUBST(INSTOBJEXT) + + dnl For backward compatibility. Some Makefiles may be using this. + GENCAT=gencat + AC_SUBST(GENCAT) + + dnl Enable libtool support if the surrounding package wishes it. + INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix + AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX) + ]) + + dnl For backward compatibility. Some Makefiles may be using this. + INTLLIBS="$LIBINTL" + AC_SUBST(INTLLIBS) + + dnl Make all documented variables known to autoconf. + AC_SUBST(LIBINTL) + AC_SUBST(LTLIBINTL) + AC_SUBST(POSUB) +]) + + +dnl Checks for all prerequisites of the po subdirectory, +dnl except for USE_NLS. +AC_DEFUN([AM_PO_SUBDIRS], +[ + AC_REQUIRE([AC_PROG_MAKE_SET])dnl + AC_REQUIRE([AC_PROG_INSTALL])dnl + AC_REQUIRE([AM_MKINSTALLDIRS])dnl + + dnl Perform the following tests also if --disable-nls has been given, + dnl because they are needed for "make dist" to work. + + dnl Search for GNU msgfmt in the PATH. + dnl The first test excludes Solaris msgfmt and early GNU msgfmt versions. + dnl The second test excludes FreeBSD msgfmt. + AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt, + [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1 && + (if $ac_dir/$ac_word --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)], + :) + AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT) + + dnl Search for GNU xgettext 0.11 or newer in the PATH. + dnl The first test excludes Solaris xgettext and early GNU xgettext versions. + dnl The second test excludes FreeBSD xgettext. + AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext, + [$ac_dir/$ac_word --omit-header --copyright-holder= /dev/null >/dev/null 2>&1 && + (if $ac_dir/$ac_word --omit-header --copyright-holder= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)], + :) + dnl Remove leftover from FreeBSD xgettext call. + rm -f messages.po + + dnl Search for GNU msgmerge 0.11 or newer in the PATH. + AM_PATH_PROG_WITH_TEST(MSGMERGE, msgmerge, + [$ac_dir/$ac_word --update -q /dev/null /dev/null >/dev/null 2>&1], :) + + dnl This could go away some day; the PATH_PROG_WITH_TEST already does it. + dnl Test whether we really found GNU msgfmt. + if test "$GMSGFMT" != ":"; then + dnl If it is no GNU msgfmt we define it as : so that the + dnl Makefiles still can work. + if $GMSGFMT --statistics /dev/null >/dev/null 2>&1 && + (if $GMSGFMT --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then + : ; + else + GMSGFMT=`echo "$GMSGFMT" | sed -e 's,^.*/,,'` + AC_MSG_RESULT( + [found $GMSGFMT program is not GNU msgfmt; ignore it]) + GMSGFMT=":" + fi + fi + + dnl This could go away some day; the PATH_PROG_WITH_TEST already does it. + dnl Test whether we really found GNU xgettext. + if test "$XGETTEXT" != ":"; then + dnl If it is no GNU xgettext we define it as : so that the + dnl Makefiles still can work. + if $XGETTEXT --omit-header --copyright-holder= /dev/null >/dev/null 2>&1 && + (if $XGETTEXT --omit-header --copyright-holder= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then + : ; + else + AC_MSG_RESULT( + [found xgettext program is not GNU xgettext; ignore it]) + XGETTEXT=":" + fi + dnl Remove leftover from FreeBSD xgettext call. + rm -f messages.po + fi + + AC_OUTPUT_COMMANDS([ + for ac_file in $CONFIG_FILES; do + # Support "outfile[:infile[:infile...]]" + case "$ac_file" in + *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;; + esac + # PO directories have a Makefile.in generated from Makefile.in.in. + case "$ac_file" in */Makefile.in) + # Adjust a relative srcdir. + ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'` + ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`" + ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'` + # In autoconf-2.13 it is called $ac_given_srcdir. + # In autoconf-2.50 it is called $srcdir. + test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir" + case "$ac_given_srcdir" in + .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;; + /*) top_srcdir="$ac_given_srcdir" ;; + *) top_srcdir="$ac_dots$ac_given_srcdir" ;; + esac + if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then + rm -f "$ac_dir/POTFILES" + test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES" + cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ ]*\$/d" -e "s,.*, $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES" + # ALL_LINGUAS, POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES depend + # on $ac_dir but don't depend on user-specified configuration + # parameters. + if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then + # The LINGUAS file contains the set of available languages. + if test -n "$ALL_LINGUAS"; then + test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete" + fi + ALL_LINGUAS_=`sed -e "/^#/d" "$ac_given_srcdir/$ac_dir/LINGUAS"` + # Hide the ALL_LINGUAS assigment from automake. + eval 'ALL_LINGUAS''=$ALL_LINGUAS_' + fi + case "$ac_given_srcdir" in + .) srcdirpre= ;; + *) srcdirpre='$(srcdir)/' ;; + esac + POFILES= + GMOFILES= + UPDATEPOFILES= + DUMMYPOFILES= + for lang in $ALL_LINGUAS; do + POFILES="$POFILES $srcdirpre$lang.po" + GMOFILES="$GMOFILES $srcdirpre$lang.gmo" + UPDATEPOFILES="$UPDATEPOFILES $lang.po-update" + DUMMYPOFILES="$DUMMYPOFILES $lang.nop" + done + # CATALOGS depends on both $ac_dir and the user's LINGUAS + # environment variable. + INST_LINGUAS= + if test -n "$ALL_LINGUAS"; then + for presentlang in $ALL_LINGUAS; do + useit=no + if test "%UNSET%" != "$LINGUAS"; then + desiredlanguages="$LINGUAS" + else + desiredlanguages="$ALL_LINGUAS" + fi + for desiredlang in $desiredlanguages; do + # Use the presentlang catalog if desiredlang is + # a. equal to presentlang, or + # b. a variant of presentlang (because in this case, + # presentlang can be used as a fallback for messages + # which are not translated in the desiredlang catalog). + case "$desiredlang" in + "$presentlang"*) useit=yes;; + esac + done + if test $useit = yes; then + INST_LINGUAS="$INST_LINGUAS $presentlang" + fi + done + fi + CATALOGS= + if test -n "$INST_LINGUAS"; then + for lang in $INST_LINGUAS; do + CATALOGS="$CATALOGS $lang.gmo" + done + fi + test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile" + sed -e "/^POTFILES =/r $ac_dir/POTFILES" -e "/^# Makevars/r $ac_given_srcdir/$ac_dir/Makevars" -e "s|@POFILES@|$POFILES|g" -e "s|@GMOFILES@|$GMOFILES|g" -e "s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e "s|@CATALOGS@|$CATALOGS|g" "$ac_dir/Makefile.in" > "$ac_dir/Makefile" + for f in "$ac_given_srcdir/$ac_dir"/Rules-*; do + if test -f "$f"; then + case "$f" in + *.orig | *.bak | *~) ;; + *) cat "$f" >> "$ac_dir/Makefile" ;; + esac + fi + done + fi + ;; + esac + done], + [# Capture the value of obsolete $ALL_LINGUAS because we need it to compute + # POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES, CATALOGS. But hide it + # from automake. + eval 'ALL_LINGUAS''="$ALL_LINGUAS"' + # Capture the value of LINGUAS because we need it to compute CATALOGS. + LINGUAS="${LINGUAS-%UNSET%}" + ]) +]) + + +dnl Checks for all prerequisites of the intl subdirectory, +dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS, +dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL. +AC_DEFUN([AM_INTL_SUBDIR], +[ + AC_REQUIRE([AC_PROG_INSTALL])dnl + AC_REQUIRE([AM_MKINSTALLDIRS])dnl + AC_REQUIRE([AC_PROG_CC])dnl + AC_REQUIRE([AC_CANONICAL_HOST])dnl + AC_REQUIRE([AC_PROG_RANLIB])dnl + AC_REQUIRE([AC_ISC_POSIX])dnl + AC_REQUIRE([AC_HEADER_STDC])dnl + AC_REQUIRE([AC_C_CONST])dnl + AC_REQUIRE([AC_C_INLINE])dnl + AC_REQUIRE([AC_TYPE_OFF_T])dnl + AC_REQUIRE([AC_TYPE_SIZE_T])dnl + AC_REQUIRE([AC_FUNC_ALLOCA])dnl + AC_REQUIRE([AC_FUNC_MMAP])dnl + AC_REQUIRE([jm_GLIBC21])dnl + AC_REQUIRE([gt_INTDIV0])dnl + AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])dnl + AC_REQUIRE([gt_HEADER_INTTYPES_H])dnl + AC_REQUIRE([gt_INTTYPES_PRI])dnl + + AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \ +stdlib.h string.h unistd.h sys/param.h]) + AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getc_unlocked getcwd getegid \ +geteuid getgid getuid mempcpy munmap putenv setenv setlocale stpcpy \ +strcasecmp strdup strtoul tsearch __argz_count __argz_stringify __argz_next]) + + AM_ICONV + AM_LANGINFO_CODESET + if test $ac_cv_header_locale_h = yes; then + AM_LC_MESSAGES + fi + + dnl intl/plural.c is generated from intl/plural.y. It requires bison, + dnl because plural.y uses bison specific features. It requires at least + dnl bison-1.26 because earlier versions generate a plural.c that doesn't + dnl compile. + dnl bison is only needed for the maintainer (who touches plural.y). But in + dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put + dnl the rule in general Makefile. Now, some people carelessly touch the + dnl files or have a broken "make" program, hence the plural.c rule will + dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not + dnl present or too old. + AC_CHECK_PROGS([INTLBISON], [bison]) + if test -z "$INTLBISON"; then + ac_verc_fail=yes + else + dnl Found it, now check the version. + AC_MSG_CHECKING([version of bison]) +changequote(<<,>>)dnl + ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'` + case $ac_prog_version in + '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;; + 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*) +changequote([,])dnl + ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;; + *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;; + esac + AC_MSG_RESULT([$ac_prog_version]) + fi + if test $ac_verc_fail = yes; then + INTLBISON=: + fi +]) + + +AC_DEFUN([AM_MKINSTALLDIRS], +[ + dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly + dnl find the mkinstalldirs script in another subdir but $(top_srcdir). + dnl Try to locate is. + MKINSTALLDIRS= + if test -n "$ac_aux_dir"; then + MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs" + fi + if test -z "$MKINSTALLDIRS"; then + MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs" + fi + AC_SUBST(MKINSTALLDIRS) +]) + + +dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version]) +AC_DEFUN([AM_GNU_GETTEXT_VERSION], []) diff --git a/m4/iconv.m4 b/m4/iconv.m4 new file mode 100644 index 0000000..c5f3579 --- /dev/null +++ b/m4/iconv.m4 @@ -0,0 +1,103 @@ +# iconv.m4 serial AM4 (gettext-0.11.3) +dnl Copyright (C) 2000-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Bruno Haible. + +AC_DEFUN([AM_ICONV_LINKFLAGS_BODY], +[ + dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + AC_REQUIRE([AC_LIB_RPATH]) + + dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV + dnl accordingly. + AC_LIB_LINKFLAGS_BODY([iconv]) +]) + +AC_DEFUN([AM_ICONV_LINK], +[ + dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and + dnl those with the standalone portable GNU libiconv installed). + + dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV + dnl accordingly. + AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) + + dnl Add $INCICONV to CPPFLAGS before performing the following checks, + dnl because if the user has installed libiconv and not disabled its use + dnl via --without-libiconv-prefix, he wants to use it. The first + dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed. + am_save_CPPFLAGS="$CPPFLAGS" + AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV]) + + AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [ + am_cv_func_iconv="no, consider installing GNU libiconv" + am_cv_lib_iconv=no + AC_TRY_LINK([#include +#include ], + [iconv_t cd = iconv_open("",""); + iconv(cd,NULL,NULL,NULL,NULL); + iconv_close(cd);], + am_cv_func_iconv=yes) + if test "$am_cv_func_iconv" != yes; then + am_save_LIBS="$LIBS" + LIBS="$LIBS $LIBICONV" + AC_TRY_LINK([#include +#include ], + [iconv_t cd = iconv_open("",""); + iconv(cd,NULL,NULL,NULL,NULL); + iconv_close(cd);], + am_cv_lib_iconv=yes + am_cv_func_iconv=yes) + LIBS="$am_save_LIBS" + fi + ]) + if test "$am_cv_func_iconv" = yes; then + AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.]) + fi + if test "$am_cv_lib_iconv" = yes; then + AC_MSG_CHECKING([how to link with libiconv]) + AC_MSG_RESULT([$LIBICONV]) + else + dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV + dnl either. + CPPFLAGS="$am_save_CPPFLAGS" + LIBICONV= + LTLIBICONV= + fi + AC_SUBST(LIBICONV) + AC_SUBST(LTLIBICONV) +]) + +AC_DEFUN([AM_ICONV], +[ + AM_ICONV_LINK + if test "$am_cv_func_iconv" = yes; then + AC_MSG_CHECKING([for iconv declaration]) + AC_CACHE_VAL(am_cv_proto_iconv, [ + AC_TRY_COMPILE([ +#include +#include +extern +#ifdef __cplusplus +"C" +#endif +#if defined(__STDC__) || defined(__cplusplus) +size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); +#else +size_t iconv(); +#endif +], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const") + am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) + am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` + AC_MSG_RESULT([$]{ac_t:- + }[$]am_cv_proto_iconv) + AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1, + [Define as const if the declaration of iconv() needs const.]) + fi +]) diff --git a/m4/lcmessage.m4 b/m4/lcmessage.m4 new file mode 100644 index 0000000..ffbf915 --- /dev/null +++ b/m4/lcmessage.m4 @@ -0,0 +1,32 @@ +# lcmessage.m4 serial 2 (gettext-0.10.40) +dnl Copyright (C) 1995-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper , 1995. + +# Check whether LC_MESSAGES is available in . + +AC_DEFUN([AM_LC_MESSAGES], + [if test $ac_cv_header_locale_h = yes; then + AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES, + [AC_TRY_LINK([#include ], [return LC_MESSAGES], + am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)]) + if test $am_cv_val_LC_MESSAGES = yes; then + AC_DEFINE(HAVE_LC_MESSAGES, 1, + [Define if your file defines LC_MESSAGES.]) + fi + fi]) diff --git a/m4/progtest.m4 b/m4/progtest.m4 new file mode 100644 index 0000000..443c8e3 --- /dev/null +++ b/m4/progtest.m4 @@ -0,0 +1,59 @@ +# progtest.m4 serial 2 (gettext-0.10.40) +dnl Copyright (C) 1996-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper , 1996. + +# Search path for a program which passes the given test. + +dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR, +dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]]) +AC_DEFUN([AM_PATH_PROG_WITH_TEST], +[# Extract the first word of "$2", so it can be a program name with args. +set dummy $2; ac_word=[$]2 +AC_MSG_CHECKING([for $ac_word]) +AC_CACHE_VAL(ac_cv_path_$1, +[case "[$]$1" in + /*) + ac_cv_path_$1="[$]$1" # Let the user override the test with a path. + ;; + *) + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" + for ac_dir in ifelse([$5], , $PATH, [$5]); do + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/$ac_word; then + if [$3]; then + ac_cv_path_$1="$ac_dir/$ac_word" + break + fi + fi + done + IFS="$ac_save_ifs" +dnl If no 4th arg is given, leave the cache variable unset, +dnl so AC_PATH_PROGS will keep looking. +ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4" +])dnl + ;; +esac])dnl +$1="$ac_cv_path_$1" +if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then + AC_MSG_RESULT([$]$1) +else + AC_MSG_RESULT(no) +fi +AC_SUBST($1)dnl +]) diff --git a/po/.cvsignore b/po/.cvsignore new file mode 100644 index 0000000..bf29bab --- /dev/null +++ b/po/.cvsignore @@ -0,0 +1 @@ +elfutils.pot diff --git a/po/ChangeLog b/po/ChangeLog new file mode 100644 index 0000000..020c07b --- /dev/null +++ b/po/ChangeLog @@ -0,0 +1,19 @@ +2005-07-21 Ulrich Drepper + + * Makefile.in.in: Add src/elfcmp. + +2005-05-07 Ulrich Drepper + + * Makefile.in.in (XGETTEXT_OPTIONS): Define. + +2005-02-05 Ulrich Drepper + + * POTFILES.in: Remove unnecessary entries. + +2004-01-18 Ulrich Drepper + + * POTFILES.in: Add files from libdw, libebl, and libasm. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/po/Makefile.in.in b/po/Makefile.in.in new file mode 100644 index 0000000..dbd7885 --- /dev/null +++ b/po/Makefile.in.in @@ -0,0 +1,302 @@ +# Makefile for PO directory in any package using GNU gettext. +# Copyright (C) 1995-1997, 2000-2002 by Ulrich Drepper +# +# This file can be copied and used freely without restrictions. It can +# be used in projects which are not available under the GNU General Public +# License but which still want to provide support for the GNU gettext +# functionality. +# Please note that the actual code of GNU gettext is covered by the GNU +# General Public License and is *not* in the public domain. + +PACKAGE = @PACKAGE@ +VERSION = @VERSION@ + +SHELL = /bin/sh +@SET_MAKE@ + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ + +prefix = @prefix@ +exec_prefix = @exec_prefix@ +datadir = @datadir@ +localedir = $(datadir)/locale +gettextsrcdir = $(datadir)/gettext/po +top_builddir = .. + +INSTALL = @INSTALL@ +INSTALL_DATA = @INSTALL_DATA@ +MKINSTALLDIRS = @MKINSTALLDIRS@ +mkinstalldirs = $(SHELL) `case "$(MKINSTALLDIRS)" in /*) echo "$(MKINSTALLDIRS)" ;; *) echo "$(top_builddir)/$(MKINSTALLDIRS)" ;; esac` + +GMSGFMT = @GMSGFMT@ +MSGFMT = @MSGFMT@ +XGETTEXT = @XGETTEXT@ +XGETTEXT_OPTIONS = --flag=error:3:c-format +MSGMERGE = msgmerge +MSGMERGE_UPDATE = @MSGMERGE@ --update +MSGINIT = msginit +MSGCONV = msgconv +MSGFILTER = msgfilter + +POFILES = @POFILES@ +GMOFILES = @GMOFILES@ +UPDATEPOFILES = @UPDATEPOFILES@ +DUMMYPOFILES = @DUMMYPOFILES@ +DISTFILES.common = Makefile.in.in Makevars \ +$(DISTFILES.common.extra1) $(DISTFILES.common.extra2) $(DISTFILES.common.extra3) +DISTFILES = $(DISTFILES.common) POTFILES.in $(DOMAIN).pot \ +$(POFILES) $(GMOFILES) \ +$(DISTFILES.extra1) $(DISTFILES.extra2) $(DISTFILES.extra3) + +POTFILES = \ + +CATALOGS = @CATALOGS@ + +# Makevars gets inserted here. (Don't remove this line!) + +.SUFFIXES: +.SUFFIXES: .po .gmo .mo .nop .po-update + +.po.mo: + $(MSGFMT) -c -o $@ $< + +.po.gmo: + @lang=`echo $* | sed -e 's,.*/,,'`; \ + test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \ + echo "$${cdcmd}rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics -o $${lang}.gmo $${lang}.po"; \ + cd $(srcdir) && rm -f $${lang}.gmo && $(GMSGFMT) -c --statistics -o $${lang}.gmo $${lang}.po + + +all: all-@USE_NLS@ + +all-yes: $(CATALOGS) +all-no: + +# Note: Target 'all' must not depend on target '$(DOMAIN).pot-update', +# otherwise packages like GCC can not be built if only parts of the source +# have been downloaded. + +$(DOMAIN).pot-update: $(POTFILES) $(srcdir)/POTFILES.in + $(XGETTEXT) --default-domain=$(DOMAIN) --directory=$(top_srcdir) \ + --add-comments=TRANSLATORS: $(XGETTEXT_OPTIONS) \ + --files-from=$(srcdir)/POTFILES.in \ + --copyright-holder='$(COPYRIGHT_HOLDER)' \ + && test ! -f $(DOMAIN).po \ + || ( rm -f $(srcdir)/$(DOMAIN).pot \ + && mv $(DOMAIN).po $(srcdir)/$(DOMAIN).pot ) + +$(srcdir)/$(DOMAIN).pot: + $(MAKE) $(DOMAIN).pot-update + +$(POFILES): $(srcdir)/$(DOMAIN).pot + @lang=`echo $@ | sed -e 's,.*/,,' -e 's/\.po$$//'`; \ + test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \ + echo "$${cdcmd}$(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot"; \ + cd $(srcdir) && $(MSGMERGE_UPDATE) $${lang}.po $(DOMAIN).pot + + +install: install-exec install-data +install-exec: +install-data: install-data-@USE_NLS@ + if test "$(PACKAGE)" = "gettext"; then \ + $(mkinstalldirs) $(DESTDIR)$(gettextsrcdir); \ + for file in $(DISTFILES.common); do \ + $(INSTALL_DATA) $(srcdir)/$$file \ + $(DESTDIR)$(gettextsrcdir)/$$file; \ + done; \ + else \ + : ; \ + fi +install-data-no: all +install-data-yes: all + $(mkinstalldirs) $(DESTDIR)$(datadir) + @catalogs='$(CATALOGS)'; \ + for cat in $$catalogs; do \ + cat=`basename $$cat`; \ + lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \ + dir=$(localedir)/$$lang/LC_MESSAGES; \ + $(mkinstalldirs) $(DESTDIR)$$dir; \ + if test -r $$cat; then realcat=$$cat; else realcat=$(srcdir)/$$cat; fi; \ + $(INSTALL_DATA) $$realcat $(DESTDIR)$$dir/$(DOMAIN).mo; \ + echo "installing $$realcat as $(DESTDIR)$$dir/$(DOMAIN).mo"; \ + for lc in '' $(EXTRA_LOCALE_CATEGORIES); do \ + if test -n "$$lc"; then \ + if (cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc 2>/dev/null) | grep ' -> ' >/dev/null; then \ + link=`cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc | sed -e 's/^.* -> //'`; \ + mv $(DESTDIR)$(localedir)/$$lang/$$lc $(DESTDIR)$(localedir)/$$lang/$$lc.old; \ + mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \ + (cd $(DESTDIR)$(localedir)/$$lang/$$lc.old && \ + for file in *; do \ + if test -f $$file; then \ + ln -s ../$$link/$$file $(DESTDIR)$(localedir)/$$lang/$$lc/$$file; \ + fi; \ + done); \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc.old; \ + else \ + if test -d $(DESTDIR)$(localedir)/$$lang/$$lc; then \ + :; \ + else \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc; \ + mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \ + fi; \ + fi; \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \ + ln -s ../LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo 2>/dev/null || \ + ln $(DESTDIR)$(localedir)/$$lang/LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo 2>/dev/null || \ + cp -p $(DESTDIR)$(localedir)/$$lang/LC_MESSAGES/$(DOMAIN).mo $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \ + echo "installing $$realcat link as $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo"; \ + fi; \ + done; \ + done + +install-strip: install + +installdirs: installdirs-exec installdirs-data +installdirs-exec: +installdirs-data: installdirs-data-@USE_NLS@ + if test "$(PACKAGE)" = "gettext"; then \ + $(mkinstalldirs) $(DESTDIR)$(gettextsrcdir); \ + else \ + : ; \ + fi +installdirs-data-no: +installdirs-data-yes: + $(mkinstalldirs) $(DESTDIR)$(datadir) + @catalogs='$(CATALOGS)'; \ + for cat in $$catalogs; do \ + cat=`basename $$cat`; \ + lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \ + dir=$(localedir)/$$lang/LC_MESSAGES; \ + $(mkinstalldirs) $(DESTDIR)$$dir; \ + for lc in '' $(EXTRA_LOCALE_CATEGORIES); do \ + if test -n "$$lc"; then \ + if (cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc 2>/dev/null) | grep ' -> ' >/dev/null; then \ + link=`cd $(DESTDIR)$(localedir)/$$lang && LC_ALL=C ls -l -d $$lc | sed -e 's/^.* -> //'`; \ + mv $(DESTDIR)$(localedir)/$$lang/$$lc $(DESTDIR)$(localedir)/$$lang/$$lc.old; \ + mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \ + (cd $(DESTDIR)$(localedir)/$$lang/$$lc.old && \ + for file in *; do \ + if test -f $$file; then \ + ln -s ../$$link/$$file $(DESTDIR)$(localedir)/$$lang/$$lc/$$file; \ + fi; \ + done); \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc.old; \ + else \ + if test -d $(DESTDIR)$(localedir)/$$lang/$$lc; then \ + :; \ + else \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc; \ + mkdir $(DESTDIR)$(localedir)/$$lang/$$lc; \ + fi; \ + fi; \ + fi; \ + done; \ + done + +# Define this as empty until I found a useful application. +installcheck: + +uninstall: uninstall-exec uninstall-data +uninstall-exec: +uninstall-data: uninstall-data-@USE_NLS@ + if test "$(PACKAGE)" = "gettext"; then \ + for file in $(DISTFILES.common); do \ + rm -f $(DESTDIR)$(gettextsrcdir)/$$file; \ + done; \ + else \ + : ; \ + fi +uninstall-data-no: +uninstall-data-yes: + catalogs='$(CATALOGS)'; \ + for cat in $$catalogs; do \ + cat=`basename $$cat`; \ + lang=`echo $$cat | sed -e 's/\.gmo$$//'`; \ + for lc in LC_MESSAGES $(EXTRA_LOCALE_CATEGORIES); do \ + rm -f $(DESTDIR)$(localedir)/$$lang/$$lc/$(DOMAIN).mo; \ + done; \ + done + +check: all + +dvi info tags TAGS ID: + +mostlyclean: + rm -f core core.* $(DOMAIN).po *.new.po + rm -fr *.o + +clean: mostlyclean + +distclean: clean + rm -f Makefile Makefile.in POTFILES *.mo + +maintainer-clean: distclean + @echo "This command is intended for maintainers to use;" + @echo "it deletes files that may require special tools to rebuild." + rm -f $(GMOFILES) + +distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir) +dist distdir: + $(MAKE) update-po + @$(MAKE) dist2 +# This is a separate target because 'update-po' must be executed before. +dist2: $(DISTFILES) + dists="$(DISTFILES)"; \ + if test -f $(srcdir)/ChangeLog; then dists="$$dists ChangeLog"; fi; \ + if test -f $(srcdir)/LINGUAS; then dists="$$dists LINGUAS"; fi; \ + for file in $$dists; do \ + if test -f $$file; then \ + cp -p $$file $(distdir); \ + else \ + cp -p $(srcdir)/$$file $(distdir); \ + fi; \ + done + +update-po: Makefile + $(MAKE) $(DOMAIN).pot-update + $(MAKE) $(UPDATEPOFILES) + $(MAKE) update-gmo + +# General rule for updating PO files. + +.nop.po-update: + @lang=`echo $@ | sed -e 's/\.po-update$$//'`; \ + if test "$(PACKAGE)" = "gettext"; then PATH=`pwd`/../src:$$PATH; fi; \ + tmpdir=`pwd`; \ + echo "$$lang:"; \ + test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \ + echo "$${cdcmd}$(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$lang.new.po"; \ + cd $(srcdir); \ + if $(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$tmpdir/$$lang.new.po; then \ + if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \ + rm -f $$tmpdir/$$lang.new.po; \ + else \ + if mv -f $$tmpdir/$$lang.new.po $$lang.po; then \ + :; \ + else \ + echo "msgmerge for $$lang.po failed: cannot move $$tmpdir/$$lang.new.po to $$lang.po" 1>&2; \ + exit 1; \ + fi; \ + fi; \ + else \ + echo "msgmerge for $$lang.po failed!" 1>&2; \ + rm -f $$tmpdir/$$lang.new.po; \ + fi + +$(DUMMYPOFILES): + +update-gmo: Makefile $(GMOFILES) + @: + +Makefile: Makefile.in.in $(top_builddir)/config.status POTFILES.in + cd $(top_builddir) \ + && CONFIG_FILES=$(subdir)/$@.in CONFIG_HEADERS= \ + $(SHELL) ./config.status + +force: + +# Tell versions [3.59,3.63) of GNU make not to export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/po/Makevars b/po/Makevars new file mode 100644 index 0000000..0accb70 --- /dev/null +++ b/po/Makevars @@ -0,0 +1,25 @@ +# Makefile variables for PO directory in any package using GNU gettext. + +# Usually the message domain is the same as the package name. +DOMAIN = $(PACKAGE) + +# These two variables depend on the location of this directory. +subdir = po +top_builddir = .. + +# These options get passed to xgettext. +XGETTEXT_OPTIONS = --keyword=_ --keyword=N_ + +# This is the copyright holder that gets inserted into the header of the +# $(DOMAIN).pot file. Set this to the copyright holder of the surrounding +# package. (Note that the msgstr strings, extracted from the package's +# sources, belong to the copyright holder of the package.) Translators are +# expected to transfer the copyright for their translations to this person +# or entity, or to disclaim their copyright. The empty string stands for +# the public domain; in this case the translators are expected to disclaim +# their copyright. +COPYRIGHT_HOLDER = Red Hat, Inc. + +# This is the list of locale categories, beyond LC_MESSAGES, for which the +# message catalogs shall be used. It is usually empty. +EXTRA_LOCALE_CATEGORIES = diff --git a/po/POTFILES.in b/po/POTFILES.in new file mode 100644 index 0000000..b92e883 --- /dev/null +++ b/po/POTFILES.in @@ -0,0 +1,24 @@ +# List of files which containing translatable strings. +# Copyright (C) 2000, 2005 Red Hat, Inc. + +# Files from the compatibility library +lib/xmalloc.c +lib/xstrdup.c +lib/xstrndup.c + +# Library sources +libasm/asm_error.c +libdw/dwarf_error.c + +# Program sources +src/nm.c +src/readelf.c +src/size.c +src/strip.c +src/ld.c +src/ldgeneric.c +src/ldscript.y +src/elflint.c +src/addr2line.c +src/findtextrel.c +src/elfcmp.c diff --git a/po/Rules-quot b/po/Rules-quot new file mode 100644 index 0000000..5f46d23 --- /dev/null +++ b/po/Rules-quot @@ -0,0 +1,42 @@ +# Special Makefile rules for English message catalogs with quotation marks. + +DISTFILES.common.extra1 = quot.sed boldquot.sed en@quot.header en@boldquot.header insert-header.sin Rules-quot + +.SUFFIXES: .insert-header .po-update-en + +en@quot.po-update: en@quot.po-update-en +en@boldquot.po-update: en@boldquot.po-update-en + +.insert-header.po-update-en: + @lang=`echo $@ | sed -e 's/\.po-update-en$$//'`; \ + if test "$(PACKAGE)" = "gettext"; then PATH=`pwd`/../src:$$PATH; GETTEXTLIBDIR=`cd $(top_srcdir)/src && pwd`; export GETTEXTLIBDIR; fi; \ + tmpdir=`pwd`; \ + echo "$$lang:"; \ + ll=`echo $$lang | sed -e 's/@.*//'`; \ + LC_ALL=C; export LC_ALL; \ + cd $(srcdir); \ + if $(MSGINIT) -i $(DOMAIN).pot --no-translator -l $$ll -o - 2>/dev/null | sed -f $$tmpdir/$$lang.insert-header | $(MSGCONV) -t UTF-8 | $(MSGFILTER) sed -f `echo $$lang | sed -e 's/.*@//'`.sed 2>/dev/null > $$tmpdir/$$lang.new.po; then \ + if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \ + rm -f $$tmpdir/$$lang.new.po; \ + else \ + if mv -f $$tmpdir/$$lang.new.po $$lang.po; then \ + :; \ + else \ + echo "creation of $$lang.po failed: cannot move $$tmpdir/$$lang.new.po to $$lang.po" 1>&2; \ + exit 1; \ + fi; \ + fi; \ + else \ + echo "creation of $$lang.po failed!" 1>&2; \ + rm -f $$tmpdir/$$lang.new.po; \ + fi + +en@quot.insert-header: insert-header.sin + sed -e '/^#/d' -e 's/HEADER/en@quot.header/g' $(srcdir)/insert-header.sin > en@quot.insert-header + +en@boldquot.insert-header: insert-header.sin + sed -e '/^#/d' -e 's/HEADER/en@boldquot.header/g' $(srcdir)/insert-header.sin > en@boldquot.insert-header + +mostlyclean: mostlyclean-quot +mostlyclean-quot: + rm -f *.insert-header diff --git a/po/boldquot.sed b/po/boldquot.sed new file mode 100644 index 0000000..4b937aa --- /dev/null +++ b/po/boldquot.sed @@ -0,0 +1,10 @@ +s/"\([^"]*\)"/“\1”/g +s/`\([^`']*\)'/‘\1’/g +s/ '\([^`']*\)' / ‘\1’ /g +s/ '\([^`']*\)'$/ ‘\1’/g +s/^'\([^`']*\)' /‘\1’ /g +s/“”/""/g +s/“/“/g +s/”/”/g +s/‘/‘/g +s/’/’/g diff --git a/po/en@boldquot.header b/po/en@boldquot.header new file mode 100644 index 0000000..fedb6a0 --- /dev/null +++ b/po/en@boldquot.header @@ -0,0 +1,25 @@ +# All this catalog "translates" are quotation characters. +# The msgids must be ASCII and therefore cannot contain real quotation +# characters, only substitutes like grave accent (0x60), apostrophe (0x27) +# and double quote (0x22). These substitutes look strange; see +# http://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html +# +# This catalog translates grave accent (0x60) and apostrophe (0x27) to +# left single quotation mark (U+2018) and right single quotation mark (U+2019). +# It also translates pairs of apostrophe (0x27) to +# left single quotation mark (U+2018) and right single quotation mark (U+2019) +# and pairs of quotation mark (0x22) to +# left double quotation mark (U+201C) and right double quotation mark (U+201D). +# +# When output to an UTF-8 terminal, the quotation characters appear perfectly. +# When output to an ISO-8859-1 terminal, the single quotation marks are +# transliterated to apostrophes (by iconv in glibc 2.2 or newer) or to +# grave/acute accent (by libiconv), and the double quotation marks are +# transliterated to 0x22. +# When output to an ASCII terminal, the single quotation marks are +# transliterated to apostrophes, and the double quotation marks are +# transliterated to 0x22. +# +# This catalog furthermore displays the text between the quotation marks in +# bold face, assuming the VT100/XTerm escape sequences. +# diff --git a/po/en@quot.header b/po/en@quot.header new file mode 100644 index 0000000..a9647fc --- /dev/null +++ b/po/en@quot.header @@ -0,0 +1,22 @@ +# All this catalog "translates" are quotation characters. +# The msgids must be ASCII and therefore cannot contain real quotation +# characters, only substitutes like grave accent (0x60), apostrophe (0x27) +# and double quote (0x22). These substitutes look strange; see +# http://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html +# +# This catalog translates grave accent (0x60) and apostrophe (0x27) to +# left single quotation mark (U+2018) and right single quotation mark (U+2019). +# It also translates pairs of apostrophe (0x27) to +# left single quotation mark (U+2018) and right single quotation mark (U+2019) +# and pairs of quotation mark (0x22) to +# left double quotation mark (U+201C) and right double quotation mark (U+201D). +# +# When output to an UTF-8 terminal, the quotation characters appear perfectly. +# When output to an ISO-8859-1 terminal, the single quotation marks are +# transliterated to apostrophes (by iconv in glibc 2.2 or newer) or to +# grave/acute accent (by libiconv), and the double quotation marks are +# transliterated to 0x22. +# When output to an ASCII terminal, the single quotation marks are +# transliterated to apostrophes, and the double quotation marks are +# transliterated to 0x22. +# diff --git a/po/insert-header.sin b/po/insert-header.sin new file mode 100644 index 0000000..b26de01 --- /dev/null +++ b/po/insert-header.sin @@ -0,0 +1,23 @@ +# Sed script that inserts the file called HEADER before the header entry. +# +# At each occurrence of a line starting with "msgid ", we execute the following +# commands. At the first occurrence, insert the file. At the following +# occurrences, do nothing. The distinction between the first and the following +# occurrences is achieved by looking at the hold space. +/^msgid /{ +x +# Test if the hold space is empty. +s/m/m/ +ta +# Yes it was empty. First occurrence. Read the file. +r HEADER +# Output the file's contents by reading the next line. But don't lose the +# current line while doing this. +g +N +bb +:a +# The hold space was nonempty. Following occurrences. Do nothing. +x +:b +} diff --git a/po/quot.sed b/po/quot.sed new file mode 100644 index 0000000..0122c46 --- /dev/null +++ b/po/quot.sed @@ -0,0 +1,6 @@ +s/"\([^"]*\)"/“\1”/g +s/`\([^`']*\)'/‘\1’/g +s/ '\([^`']*\)' / ‘\1’ /g +s/ '\([^`']*\)'$/ ‘\1’/g +s/^'\([^`']*\)' /‘\1’ /g +s/“”/""/g diff --git a/src/.cvsignore b/src/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/src/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/src/ChangeLog b/src/ChangeLog new file mode 100644 index 0000000..7ebdcc4 --- /dev/null +++ b/src/ChangeLog @@ -0,0 +1,413 @@ +2005-07-24 Ulrich Drepper + + * elfcmp.c: Implement comparing gaps between sections. + +2005-07-23 Ulrich Drepper + + * elflint.c: Include libeblP.h instead of libebl.h. + * nm.c: Likewise. + * readelf.c: Likewise. + * elfcmp.c: Likewise. + + * elfcmp.c (main): Compare individual ELF header fields, excluding + e_shoff instead of the whole struct at once. + Use ebl_section_strip_p instead of SECTION_STRIP_P. + * strip.c: Use ebl_section_strip_p instead of SECTION_STRIP_P. + +2005-07-22 Ulrich Drepper + + * elfcmp.c (main): Take empty section into account when comparing + section content. + + * elflint.c (check_dynamic): Check that d_tag value is >= 0 before + using it. + +2005-07-21 Ulrich Drepper + + * elfcmp.c: New file. + * Makefile.am (bin_PROGRAMS): Add elfcmp. + (elfcmp_LDADD): Define. + + * elflint.c (check_rela): Check that copy relocations only reference + object symbols or symbols with unknown type. + (check_rel): Likewise. + +2005-06-08 Roland McGrath + + * readelf.c (print_ops): Add consts. + +2005-05-31 Roland McGrath + + * readelf.c (print_debug_abbrev_section): Don't bail after first CU's + abbreviations. Print a header line before each CU section. + + * readelf.c (print_debug_loc_section): Fix indentation for larger + address size. + +2005-05-30 Roland McGrath + + * readelf.c (print_debug_line_section): Print section offset of each + CU's table, so they are easy to find from seeing the stmt_list value. + + * readelf.c (dwarf_attr_string): Add all attributes in . + (attr_callback): Grok DW_AT_ranges and print offset in hex. + + * readelf.c (attr_callback): Add 2 to addrsize * 2 for %#0* format. + (print_debug_ranges_section, print_debug_loc_section): Likewise. + + * readelf.c (print_ops): Take different args for indentation control. + (attr_callback): Caller updated. + Grok several more block-form attributes as being location expressions. + For those same attributes with udata forms, format output differently + for location list offset. + (print_debug_loc_section): Implement it for real. + + * readelf.c (options): Mention ranges for --debug-dump. + (enum section_e): Add section_ranges. + (parse_opt): Grok "ranges" for -w/--debug-dump. + (print_debug_ranges_section): New function. + (print_debug): Handle .debug_ranges section. + +2005-05-30 Ulrich Drepper + + * readelf.c (handle_notes): At least x86-64 need not have the note + section values aligned to 8 bytes. + +2005-05-18 Ulrich Drepper + + * readelf.c (dwarf_tag_string): Add new tags. + +2005-05-08 Roland McGrath + + * strip.c (handle_elf): Don't translate hash and versym data formats, + elf_getdata already did it for us. + +2005-05-07 Ulrich Drepper + + * Makefile.am (findtextrel_LDADD): Add $(libmudflap). + (addr2line_LDADD): Likewise. + +2005-05-03 Roland McGrath + + * strip.c (handle_elf): Apply symbol table fixups to discarded + relocation sections when they are being saved in the debug file. + + * strip.c (handle_elf): Pass EHDR->e_ident[EI_DATA] to gelf_xlatetom + and gelf_xlatetof, not the native byte order. + + * strip.c (parse_opt): Give error if -f or -o is repeated. + (main): Exit if argp_parse returns nonzero. + + * strip.c (debug_fname_embed): New variable. + (options, parse_opt): New option -F to set it. + +2005-05-07 Ulrich Drepper + + * readelf.c (parse_opt): Make any_control_option variable + local. Simplify some tests. + +2005-05-03 Roland McGrath + + * strip.c (crc32_file): Function removed (now in ../lib). + +2005-05-03 Roland McGrath + + * elflint.c (is_debuginfo): New variable. + (options, parse_opt): New option --debuginfo/-d to set it. + (check_sections): If is_debuginfo, don't complain about SHT_NOBITS. + (check_note): If is_debuginfo, don't try to get note contents. + +2005-04-24 Ulrich Drepper + + * readelf.c (print_debug_abbrev_section): Don't print error when end of + section reached. + +2005-04-14 Ulrich Drepper + + * readelf.c (dwarf_encoding_string): New function. + (dwarf_inline_string): New function. + (dwarf_access_string): New function. + (dwarf_visibility_string): New function. + (dwarf_virtuality_string): New function. + (dwarf_identifier_case_string): New function. + (dwarf_calling_convention_string): New function. + (dwarf_ordering_string): New function. + (dwarf_discr_list_string): New function. + (attr_callback): Decode man more attribute values. + +2005-04-01 Ulrich Drepper + + * addr2line.c: Finish implementation of -f option. + +2005-03-29 Ulrich Drepper + + * addr2line.c: New file. + * Makefile.am (bin_PROGRAMS): Add addr2line. + Define addr2line_LDADD. + + * findtextrel.c: Use new dwarf_addrdie function. + + * findtextrel.c: Fix usage message and re-add accidentally removed + line. + +2005-03-28 Ulrich Drepper + + * findtextrel.c: New file. + * Makefile: Add rules to build findtextrel. + +2005-02-15 Ulrich Drepper + + * ldlex.l: Provide ECHO definition to avoid warning. + + * elflint.c (check_program_header): Fix typo in RELRO test. + + * Makefile.am (AM_CFLAGS): Add more warning options. + * elflint.c: Fix warnings introduced by the new warning options. + * i386_ld.c: Likewise. + * ld.c: Likewise. + * ld.h: Likewise. + * ldgeneric.c: Likewise. + * nm.c: Likewise. + * readelf.c: Likewise. + * sectionhash.c: Likewise. + * size.c: Likewise. + * string.c: Likewise. + +2005-02-05 Ulrich Drepper + + * Makefile.am: Check for text relocations in constructed DSOs. + + * Makefile.am [MUDFLAP] (AM_CFLAGS): Add -fmudflap. Link all apps + with -lmudflap. + + * ldscript.y: Add as_needed handling. + * ldlex.l: Recognize AS_NEEDED token. + * ld.h (struct filename_list): Add as_needed flag. + +2005-02-04 Ulrich Drepper + + * elflint.c (check_symtab): Correctly determine size of GOT section. + +2005-01-19 Ulrich Drepper + + * ld.c: Remove unnecessary more_help function. Print bug report + address using argp. + * strip.c: Likewise. + * size.c: Likewise. + * nm.c: Likewise. + * readelf.c: Likewise. + * elflint.c: Likewise. + + * elflint.c (main): Don't check for parameter problems here. + (parse_opt): Do it here, where we get informed about some of them + anyway. + + * readelf.c (main): Don't check for parameter problems here. + (parse_opt): Do it here, where we get informed about some of them + anyway. + +2005-01-11 Ulrich Drepper + + * strip.c: Update copyright year. + * readelf.c: Likewise. + * size.c: Likewise. + * nm.c: Likewise. + * ld.c: Likewise. + * elflint.c: Likewise. + + * elflint.c (check_symtab): Don't warn about wrong size for + _DYNAMIC and __GLOBAL_OFFSET_TABLE__ for --gnu-ld. + +2004-10-05 Ulrich Drepper + + * readelf.c (print_phdr): In section mapping, also indicate + sections in read-only segments. + +2004-09-25 Ulrich Drepper + + * readelf.c: Make compile with gcc 4.0. + * strip.c: Likewise. + +2004-08-16 Ulrich Drepper + + * strip.c (handle_elf): Rewrite dynamic memory handling to use of + allocate to work around gcc 3.4 bug. + +2004-01-25 Ulrich Drepper + + * ldlex.l (invalid_char): Better error message. + +2004-01-23 Ulrich Drepper + + * readelf.c: Print SHT_GNU_LIBLIST sections. + + * none_ld.c: New file. + +2004-01-21 Ulrich Drepper + + * Makefile.am: Enable building of machine specific linker. + +2004-01-20 Ulrich Drepper + + * Makefile.am: Support building with mudflap. + + * i386_ld.c: Fix warnings gcc 3.4 spits out. + * ldgeneric.c: Likewise. + * ldscript.y: Likewise. + * readelf.c: Likewise. + * strip.c: Likewise. + + * readelf.c (print_debug_line_section): Determine address size + correctly. + +2004-01-19 Ulrich Drepper + + * readelf.c (print_phdr): Show which sections are covered by the + PT_GNU_RELRO entry. + + * elflint.c (check_program_header): Check PT_GNU_RELRO entry. + + * readelf.c (print_debug_macinfo_section): Implement. + +2004-01-18 Ulrich Drepper + + * readelf.c (print_debug_line_section): Implement. + +2004-01-17 Ulrich Drepper + + * src/elflint.c: Use PACKAGE_NAME instead of PACKAGE. + * src/ld.c: Likewise. + * src/nm.c: Likewise. + * src/readelf.c: Likewise. + * src/size.c: Likewise. + * src/strip.c: Likewise. + + * strip.c: Add a few more unlikely. Reduce scope of some variables. + + * Makefile.am: Support building with mudflap. + +2004-01-16 Ulrich Drepper + + * readelf.c (print_debug_info_section): Free dies memory. + + * readelf.c: Print .debug_info section content. + +2004-01-13 Ulrich Drepper + + * readelf.c (print_shdr): Add support for SHF_ORDERED and SHF_EXCLUDE. + +2004-01-12 Ulrich Drepper + + * readelf.c (print_debug_aranges): Implement using libdw. + +2004-01-11 Ulrich Drepper + + * nm.c: Adjust for Dwarf_Files type and dwarf_lineno interface change. + + * readelf.c: Use libdw instead of libdwarf. Not all of the old + behavior is available yet. + * Makefile.am: Link readelf with libdw. Remove libdwarf include path. + +2004-01-09 Ulrich Drepper + + * nm.c (get_local_names): Adjust call to dwarf_nextcu. + + * nm.c: Implement getting information about local variables. + +2004-01-07 Ulrich Drepper + + * nm.c: Read also debug information for local symbols. + +2004-01-05 Ulrich Drepper + + * nm.c: Shuffle dwarf handling code around so the maximum column + width can be computed ahead of printing. Avoid collection symbols + which are not printed anyway. + + * nm.c: Rewrite dwarf handling to use libdw. + * Makefile.am (AM_CFLAGS): Add -std parameter. + (INCLUDES): Find header in libdw subdir. + (nm_LDADD): Replace libdwarf with libdw. + + * elflint.c: Update copyright year. + * readelf.c: Likewise. + * size.c: Likewise. + * strip.c: Likewise. + * nm.c: Likewise. + +2003-12-31 Ulrich Drepper + + * strip.c (process_file): Close file before returning. + +2003-11-19 Ulrich Drepper + + * readelf.c (handle_dynamic): Make column for tag name wider. + +2003-09-29 Ulrich Drepper + + * readelf.c (handle_dynamic): Always terminate tag name with a space. + +2003-09-25 Ulrich Drepper + + * strip.c (process_file): Don't mmap the input file, we modify the + data structures and don't want the change end up on disk. + +2003-09-23 Jakub Jelinek + + * unaligned.h (union u_2ubyte_unaligned, + union u_4ubyte_unaligned, union u_8ubyte_unaligned): Add + packed attribute. + (add_2ubyte_unaligned, add_4ubyte_unaligned, + add_8ubyte_unaligned): Avoid nesting bswap_NN macros. + Read/store value through _ptr->u instead of *_ptr. + +2003-09-22 Ulrich Drepper + + * size.c (show_sysv): Change type of maxlen to int. + + * strip.c (handle_elf): Handle the 64-bit archs which is 64-bit + buckets. + + * i386_ld.c: Many many fixes and extensions. + * ld.c: Likewise. + * ldgeneric.c: Likewise. + +2003-08-16 Ulrich Drepper + + * ldgeneric.c (check_definition): Don't add symbol on dso_list if + the reference is from another DSO. + +2003-08-15 Ulrich Drepper + + * ldgeneric.c (find_entry_point): It is no fatal error if no entry + point is found when creating a DSO. + +2003-08-14 Ulrich Drepper + + * ld.c (main): Always call FLAG_UNRESOLVED. + * ldgeneric.c (ld_generic_flag_unresolved): Only complain about + undefined symbols if not creating DSO or ld_state.nodefs is not set. + +2003-08-13 Ulrich Drepper + + * Makefile.in: Depend on libebl.a, not libebl.so. + + * ld.c (main): Mark stream for linker script as locked by caller. + (read_version_script): Likewise. + * ldlex.c: Define fread and fwrite to _unlocked variant. + + * i386_ld.c (elf_i386_finalize_plt): Replace #ifdefs with uses of + target_bswap_32. + * unaligned.h: Define target_bswap_16, target_bswap_32, and + target_bswap_64. + (store_2ubyte_unaligned, store_4ubyte_unaligned, + store_8ubyte_unaligned): Define using new macros. + +2003-08-12 Ulrich Drepper + + * i386_ld.c (elf_i386_finalize_plt): Use packed structs to access + possibly unaligned memory. Support use of big endian machines. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/src/Makefile.am b/src/Makefile.am new file mode 100644 index 0000000..ccb6f96 --- /dev/null +++ b/src/Makefile.am @@ -0,0 +1,144 @@ +## Process this file with automake to create Makefile.in +## +## Copyright (C) 1996-2002, 2003, 2004, 2005 Red Hat, Inc. +## +## This program is Open Source software; you can redistribute it and/or +## modify it under the terms of the Open Software License version 1.0 as +## published by the Open Source Initiative. +## +## You should have received a copy of the Open Software License along +## with this program; if not, you may obtain a copy of the Open Software +## License version 1.0 from http://www.opensource.org/licenses/osl.php or +## by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +## 3001 King Ranch Road, Ukiah, CA 95482. +## +DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H $(YYDEBUG) \ + -DSRCDIR=\"$(shell cd $(srcdir);pwd)\" -DOBJDIR=\"$(shell pwd)\" +if MUDFLAP +AM_CFLAGS = -Wall -Wshadow -Wunused -Wextra -std=gnu99 -fmudflap \ + $(native_ld_cflags) $(if $($(*F)_no_Wunused),,-Wunused) \ + $(if $($(*F)_no_Wformat),,-Wformat=2) +else +AM_CFLAGS = -Wall -Wshadow -std=gnu99 $(native_ld_cflags) \ + $(if $($(*F)_no_Werror),,-Werror) \ + $(if $($(*F)_no_Wunused),,-Wunused -Wextra) \ + $(if $($(*F)_no_Wformat),,-Wformat=2) +endif +if MUDFLAP +libmudflap = -lmudflap +endif +INCLUDES = -I$(srcdir) -I$(srcdir)/../libelf -I$(srcdir)/../libebl -I$(srcdir)/../lib -I$(srcdir)/../libdw -I.. + +YACC = @YACC@ -d +AM_YFLAGS = -pld +AM_LFLAGS = -Pld -olex.yy.c +## Uncomment to enable debugging of linker script parser +##YYDEBUG = -DYYDEBUG=1 + +native_ld = @native_ld@ +base_cpu = @base_cpu@ + +bin_PROGRAMS = readelf nm size strip ld elflint findtextrel addr2line \ + elfcmp + + +ld_dsos = libld_elf_i386_pic.a +if NATIVE_LD +noinst_LIBRARIES = libld_elf.a +native_ld_cflags = -DBASE_ELF_NAME=elf_$(base_cpu) +else +noinst_LIBRARIES = libld_elf.a $(ld_dsos) +noinst_PROGRAMS = $(ld_dsos:_pic.a=.so) +endif + +textrel_check = if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi + + +ld_SOURCES = ld.c ldgeneric.c ldlex.l ldscript.y symbolhash.c sectionhash.c \ + versionhash.c + +noinst_HEADERS = ld.h symbolhash.h sectionhash.h versionhash.h \ + ldscript.h xelf.h unaligned.h + +EXTRA_DIST = elf32-i386.script libld_elf_i386.map $(ld_modules) +ld_modules = i386_ld.c + +if MUDFLAP +libdw = ../libdw/libdw.a +libelf = ../libelf/libelf.a +else +libdw = ../libdw/libdw.so +libelf = ../libelf/libelf.so +endif +libebl = ../libebl/libebl.a +libeu = ../lib/libeu.a + +nm_no_Wformat = yes +size_no_Wformat = yes +# XXX While the file is not finished, don't warn about this +ldgeneric_no_Wunused = yes + +readelf_LDADD = $(libdw) $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl +nm_LDADD = $(libdw) $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl +size_LDADD = $(libelf) $(libeu) $(libmudflap) +strip_LDADD = $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl +ld_LDADD = $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl +if NATIVE_LD +ld_LDADD += libld_elf.a +endif +ld_LDFLAGS = -rdynamic +elflint_LDADD = $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl +findtextrel_LDADD = $(libdw) $(libelf) $(libmudflap) +addr2line_LDADD = $(libdw) $(libelf) $(libmudflap) +elfcmp_LDADD = $(libebl) $(libelf) $(libmudflap) -ldl + +ldlex.o: ldscript.c +ldlex_no_Werror = yes +ldscript.h: ldscript.c + +# Machine-specific linker code. +libld_elf_a_SOURCES = $(base_cpu)_ld.c + +libld_elf_i386_pic_a_SOURCES = +am_libld_elf_i386_pic_a_OBJECTS = i386_ld.os + +libld_elf_i386_so_SOURCES = +libld_elf_i386.so: libld_elf_i386_pic.a libld_elf_i386.map + $(CC) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ + $(libelf) $(libeu) \ + -Wl,--version-script,$(srcdir)/libld_elf_i386.map + $(textrel_check) + + +%.os: %.c %.o + if $(filter-out -fmudflap,$(COMPILE)) -c -o $@ -fpic -DPIC -DSHARED \ + -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" \ + `test -f '$<' || echo '$(srcdir)/'`$<; \ + then cat "$(DEPDIR)/$*.Tpo" >> "$(DEPDIR)/$*.Po"; \ + rm -f "$(DEPDIR)/$*.Tpo"; \ + else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \ + fi + +# Special rule to make it possible to define libld_elf_a_SOURCES as we do. +# Otherwise make would complain. +.deps/none_ld.Po: none_ld.os + -: + + +installcheck-binPROGRAMS: $(bin_PROGRAMS) + bad=0; pid=$$$$; list="$(bin_PROGRAMS)"; for p in $$list; do \ + case ' $(AM_INSTALLCHECK_STD_OPTIONS_EXEMPT) ' in \ + *" $$p "* | *" $(srcdir)/$$p "*) continue;; \ + esac; \ + f=`echo "$$p" | \ + sed 's,^.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \ + for opt in --help --version; do \ + if LD_LIBRARY_PATH=$(DESTDIR)$(libdir) \ + $(DESTDIR)$(bindir)/$$f $$opt > c$${pid}_.out 2> c$${pid}_.err \ + && test -n "`cat c$${pid}_.out`" \ + && test -z "`cat c$${pid}_.err`"; then :; \ + else echo "$$f does not support $$opt" 1>&2; bad=1; fi; \ + done; \ + done; rm -f c$${pid}_.???; exit $$bad + +CLEANFILES = none_ld.os $(ld_modules:.c=.os) diff --git a/src/addr2line.c b/src/addr2line.c new file mode 100644 index 0000000..60fcdf6 --- /dev/null +++ b/src/addr2line.c @@ -0,0 +1,372 @@ +/* Locate source files and line information for given addresses + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +/* Name and version of program. */ +static void print_version (FILE *stream, struct argp_state *state); +void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; + +/* Bug report address. */ +const char *argp_program_bug_address = PACKAGE_BUGREPORT; + + +/* Values for the parameters which have no short form. */ +#define OPT_DEMANGLER 0x100 + +/* Definitions of arguments for argp functions. */ +static const struct argp_option options[] = +{ + { NULL, 0, NULL, 0, N_("Input Selection:"), 0 }, + { "exe", 'e', "FILE", 0, N_("Find addresses in FILE"), 0 }, + + { NULL, 0, NULL, 0, N_("Output Selection:"), 0 }, + { "basenames", 's', NULL, 0, N_("Show only base names of source files"), 0 }, + { "functions", 'f', NULL, 0, N_("Additional show function names"), 0 }, + + { NULL, 0, NULL, 0, N_("Miscellaneous:"), 0 }, + /* Unsupported options. */ + { "target", 'b', "ARG", OPTION_HIDDEN, NULL, 0 }, + { "demangle", 'C', "ARG", OPTION_HIDDEN | OPTION_ARG_OPTIONAL, NULL, 0 }, + { "demangler", OPT_DEMANGLER, "ARG", OPTION_HIDDEN, NULL, 0 }, + { NULL, 0, NULL, 0, NULL, 0 } +}; + +/* Short description of program. */ +static const char doc[] = N_("\ +Locate source files and line information for ADDRs (in a.out by default)."); + +/* Strings for arguments in help texts. */ +static const char args_doc[] = N_("[ADDR...]"); + +/* Prototype for option handler. */ +static error_t parse_opt (int key, char *arg, struct argp_state *state); + +/* Data structure to communicate with argp functions. */ +static struct argp argp = +{ + options, parse_opt, args_doc, doc, NULL, NULL, NULL +}; + + +/* Handle ADDR. */ +static void handle_address (GElf_Addr addr, Elf *elf, Dwarf *dw); + + +/* Name of the executable. */ +static const char *executable = "a.out"; + +/* True if only base names of files should be shown. */ +static bool only_basenames; + +/* True if function names should be shown. */ +static bool show_functions; + + +int +main (int argc, char *argv[]) +{ + int remaining; + int result = 0; + + /* Make memory leak detection possible. */ + mtrace (); + + /* We use no threads here which can interfere with handling a stream. */ + (void) __fsetlocking (stdout, FSETLOCKING_BYCALLER); + + /* Set locale. */ + (void) setlocale (LC_ALL, ""); + + /* Make sure the message catalog can be found. */ + (void) bindtextdomain (PACKAGE, LOCALEDIR); + + /* Initialize the message catalog. */ + (void) textdomain (PACKAGE); + + /* Parse and process arguments. */ + (void) argp_parse (&argp, argc, argv, 0, &remaining, NULL); + + /* Tell the library which version we are expecting. */ + elf_version (EV_CURRENT); + + /* Open the file. */ + int fd = open64 (executable, O_RDONLY); + if (fd == -1) + error (1, errno, gettext ("cannot open '%s'"), executable); + + /* Create the ELF descriptor. */ + Elf *elf = elf_begin (fd, ELF_C_READ_MMAP, NULL); + if (elf == NULL) + { + close (fd); + error (1, 0, gettext ("cannot create ELF descriptor: %s"), + elf_errmsg (-1)); + } + + /* Try to get a DWARF descriptor. If it fails, we try to locate the + debuginfo file. */ + Dwarf *dw = dwarf_begin_elf (elf, DWARF_C_READ, NULL); + int fd2 = -1; + Elf *elf2 = NULL; + if (dw == NULL) + { + char *canon = canonicalize_file_name (executable); + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr = gelf_getehdr (elf, &ehdr_mem); + + if (canon != NULL && ehdr != NULL) + { + const char *debuginfo_dir; + if (ehdr->e_ident[EI_CLASS] == ELFCLASS32 + || ehdr->e_machine == EM_IA_64 || ehdr->e_machine == EM_ALPHA) + debuginfo_dir = "/usr/lib/debug"; + else + debuginfo_dir = "/usr/lib64/debug"; + + char *difname = alloca (strlen (debuginfo_dir) + strlen (canon) + 1); + strcpy (stpcpy (difname, debuginfo_dir), canon); + fd2 = open64 (difname, O_RDONLY); + if (fd2 != -1) + dw = dwarf_begin_elf (elf2, DWARF_C_READ, NULL); + } + + free (canon); + } + + /* Now handle the addresses. In case none are given on the command + line, read from stdin. */ + if (remaining == argc) + { + /* We use no threads here which can interfere with handling a stream. */ + (void) __fsetlocking (stdin, FSETLOCKING_BYCALLER); + + char *buf = NULL; + size_t len = 0; + while (!feof_unlocked (stdin)) + { + if (getline (&buf, &len, stdin) < 0) + break; + + char *endp; + uintmax_t addr = strtoumax (buf, &endp, 0); + if (endp != buf) + handle_address (addr, elf2 ?: elf, dw); + else + result = 1; + } + + free (buf); + } + else + { + do + { + char *endp; + uintmax_t addr = strtoumax (argv[remaining], &endp, 0); + if (endp != argv[remaining]) + handle_address (addr, elf2 ?: elf, dw); + else + result = 1; + } + while (++remaining < argc); + } + + return result; +} + + +/* Print the version information. */ +static void +print_version (FILE *stream, struct argp_state *state __attribute__ ((unused))) +{ + fprintf (stream, "addr2line (%s) %s\n", PACKAGE_NAME, VERSION); + fprintf (stream, gettext ("\ +Copyright (C) %s Red Hat, Inc.\n\ +This is free software; see the source for copying conditions. There is NO\n\ +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ +"), "2005"); + fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); +} + + +/* Handle program arguments. */ +static error_t +parse_opt (int key, char *arg, + struct argp_state *state __attribute__ ((unused))) +{ + switch (key) + { + case 'b': + case 'C': + case OPT_DEMANGLER: + /* Ignored for compatibility. */ + break; + + case 'e': + executable = arg; + break; + + case 's': + only_basenames = true; + break; + + case 'f': + show_functions = true; + break; + + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + + +struct func_arg +{ + GElf_Addr addr; + const char *name; +}; + + +static int +match_func (Dwarf_Func *func, void *arg) +{ + struct func_arg *func_arg = (struct func_arg *) arg; + Dwarf_Addr addr; + + if (dwarf_func_lowpc (func, &addr) == 0 && addr <= func_arg->addr + && dwarf_func_highpc (func, &addr) == 0 && func_arg->addr < addr) + { + func_arg->name = dwarf_func_name (func); + return DWARF_CB_ABORT; + } + + return DWARF_CB_OK; +} + + +static const char * +elf_getname (GElf_Addr addr, Elf *elf) +{ + /* The DWARF information is not available. Use the ELF + symbol table. */ + Elf_Scn *scn = NULL; + Elf_Scn *dynscn = NULL; + + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr != NULL) + { + if (shdr->sh_type == SHT_SYMTAB) + break; + if (shdr->sh_type == SHT_DYNSYM) + dynscn = scn; + } + } + if (scn == NULL) + scn = dynscn; + + if (scn != NULL) + { + /* Look through the symbol table for a matching symbol. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + assert (shdr != NULL); + + Elf_Data *data = elf_getdata (scn, NULL); + if (data != NULL) + for (int cnt = 1; cnt < (int) (shdr->sh_size / shdr->sh_entsize); + ++cnt) + { + GElf_Sym sym_mem; + GElf_Sym *sym = gelf_getsym (data, cnt, &sym_mem); + if (sym != NULL + && sym->st_value <= addr + && addr < sym->st_value + sym->st_size) + return elf_strptr (elf, shdr->sh_link, sym->st_name); + } + } + + return NULL; +} + + +static void +handle_address (GElf_Addr addr, Elf *elf, Dwarf *dw) +{ + Dwarf_Die die_mem; + Dwarf_Die *die = dwarf_addrdie (dw, addr, &die_mem); + + if (show_functions) + { + /* First determine the function name. Use the DWARF information if + possible. */ + struct func_arg arg; + arg.addr = addr; + arg.name = NULL; + + if (dwarf_getfuncs (die, match_func, &arg, 0) <= 0) + arg.name = elf_getname (addr, elf); + + puts (arg.name ?: "??"); + } + + + Dwarf_Line *line; + const char *src; + if ((line = dwarf_getsrc_die (die, addr)) != NULL + && (src = dwarf_linesrc (line, NULL, NULL)) != NULL) + { + if (only_basenames) + src = basename (src); + + int lineno; + if (dwarf_lineno (line, &lineno) != -1) + { + int linecol; + if (dwarf_linecol (line, &linecol) != -1 && linecol != 0) + printf ("%s:%d:%d\n", src, lineno, linecol); + else + printf ("%s:%d\n", src, lineno); + } + else + printf ("%s:0\n", src); + } + else + puts ("??:0"); +} diff --git a/src/elf32-i386.script b/src/elf32-i386.script new file mode 100644 index 0000000..d62333a --- /dev/null +++ b/src/elf32-i386.script @@ -0,0 +1,215 @@ +ENTRY(_start); + +SEARCH_DIR(/lib); +SEARCH_DIR(/usr/lib); +SEARCH_DIR(/usr/local/lib); +SEARCH_DIR(/usr/i686-pc-linux-gnu/lib); + +INTERP(/lib/ld-linux.so.2); + +PAGESIZE(4k); + +SEGMENT [RX] +{ +#ifdef SHARED + . = SIZEOF_HEADERS; +#else + . = 0x08048000 + SIZEOF_HEADERS; +#endif + + .interp; + .hash; + .dynsym; + .dynstr; + .gnu.version; + .gnu.version_d; + .gnu.version_r; + .rel.dyn; + .rel.plt; + .init { KEEP (*(.init)) } + .plt; + .text + { + *(.text) + *(.text.*) + *(.stub) + *(.gnu.warning) + *(.gnu.linkonce.t.*) + } + .fini { KEEP (*(.fini)) } + PROVIDE (__etext = .); + PROVIDE (_etext = .); + PROVIDE (etext = .); + .rodata + { + *(.rodata) + *(.rodata.*) + *(.gnu.linkonce.r.*) + } + .rodata1; + . = ALIGN(32 / 8); + PROVIDE (__preinit_array_start = .); + .preinit_array + { + *(.preinit_array) + } + PROVIDE (__preinit_array_end = .); + PROVIDE (__init_array_start = .); + .init_array + { + *(.init_array) + } + PROVIDE (__init_array_end = .); + PROVIDE (__fini_array_start = .); + .fini_array + { + *(.fini_array) + } + PROVIDE (__fini_array_end = .); +} + +SEGMENT [RW] +{ + .sdata2 + { + *(.sdata2) + *(.sdata2.*) + *(.gnu.linkonce.s2.*) + } + .sbss2 + { + *(.sbss2) + *(.sbss2.*) + *(.gnu.linkonce.sb2.*) + } + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. */ + . = ALIGN(PAGESIZE) + (. & (PAGESIZE - 1)); + .data + { + *(.data) + *(.data.*) + *(.gnu.linkonce.d.*) + } + .data1; + .eh_frame + { + KEEP (*(.eh_frame)) + } + .gcc_except_table; + .ctors + { + /* gcc uses crtbegin.o to find the start of + the constructors, so we make sure it is + first. Because this is a wildcard, it + doesn't matter if the user does not + actually link against crtbegin.o; the + linker won't look for a file to match a + wildcard. The wildcard also means that it + doesn't matter which directory crtbegin.o + is in. */ + KEEP (*crtbegin.o(.ctors)) + /* We don't want to include the .ctor section from + from the crtend.o file until after the sorted ctors. + The .ctor section from the crtend file contains the + end of ctors marker and it must be last */ + KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + } + .dtors + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } + .jcr; + .got + { + *(.got.plt) + *(.got) + } + .dynamic; + /* We want the small data sections together, so single-instruction offsets + can access them all, and initialized data all before uninitialized, so + we can shorten the on-disk segment size. */ + .sdata + { + *(.sdata) + *(.sdata.*) + *(.gnu.linkonce.s.*) + } + _edata = .; + PROVIDE (edata = .); + __bss_start = .; + .sbss + { + PROVIDE (__sbss_start = .); + PROVIDE (___sbss_start = .); + *(.dynsbss) + *(.sbss) + *(.sbss.*) + *(.gnu.linkonce.sb.*) + *(.scommon) + PROVIDE (__sbss_end = .); + PROVIDE (___sbss_end = .); + } + .bss + { + *(.dynbss) + *(.bss) + *(.bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + /* Align here to ensure that the .bss section occupies space up to + _end. Align after .bss to ensure correct alignment even if the + .bss section disappears because there are no input sections. */ + . = ALIGN(32 / 8); + } + . = ALIGN(32 / 8); + _end = .; + PROVIDE (end = .); +} + +SEGMENT [] +{ + /* Stabs debugging sections. */ + .stab; + .stabstr; + .stab.excl; + .stab.exclstr; + .stab.index; + .stab.indexstr; + .comment; + /* DWARF debug sections. + Symbols in the DWARF debugging sections are relative to the beginning + of the section so we begin them at 0. */ + /* DWARF 1 */ + .debug; + .line; + /* GNU DWARF 1 extensions */ + .debug_srcinfo; + .debug_sfnames; + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges; + .debug_pubnames; + /* DWARF 2 */ + .debug_info + { + *(.debug_info) + *(.gnu.linkonce.wi.*) + } + .debug_abbrev; + .debug_line; + .debug_frame; + .debug_str; + .debug_loc; + .debug_macinfo; + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames; + .debug_funcnames; + .debug_typenames; + .debug_varnames; + /* These must appear regardless of . */ +} diff --git a/src/elfcmp.c b/src/elfcmp.c new file mode 100644 index 0000000..6bf7e74 --- /dev/null +++ b/src/elfcmp.c @@ -0,0 +1,611 @@ +/* Compare relevant content of two ELF files. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../libelf/elf-knowledge.h" +#include "../libebl/libeblP.h" + + +/* Prototypes of local functions. */ +static Elf *open_file (const char *fname, int *fdp, Ebl **eblp); +static bool search_for_copy_reloc (Ebl *ebl, size_t scnndx, int symndx); +static int regioncompare (const void *p1, const void *p2); + + +/* Name and version of program. */ +static void print_version (FILE *stream, struct argp_state *state); +void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; + +/* Bug report address. */ +const char *argp_program_bug_address = PACKAGE_BUGREPORT; + +/* Values for the parameters which have no short form. */ +#define OPT_GAPS 0x100 + +/* Definitions of arguments for argp functions. */ +static const struct argp_option options[] = +{ + { NULL, 0, NULL, 0, N_("Control options:"), 0 }, + { "gaps", OPT_GAPS, "ACTION", 0, N_("Control treatment of gaps in loadable segments [ignore|match] (default: ignore)"), 0 }, + { "quiet", 'q', NULL, 0, N_("Output nothing; yield exit status only"), 0 }, + + { NULL, 0, NULL, 0, N_("Miscellaneous:"), 0 }, + { NULL, 0, NULL, 0, NULL, 0 } +}; + +/* Short description of program. */ +static const char doc[] = N_("\ +Compare relevant parts of two ELF files for equality."); + +/* Strings for arguments in help texts. */ +static const char args_doc[] = N_("FILE1 FILE2"); + +/* Prototype for option handler. */ +static error_t parse_opt (int key, char *arg, struct argp_state *state); + +/* Data structure to communicate with argp functions. */ +static struct argp argp = +{ + options, parse_opt, args_doc, doc, NULL, NULL, NULL +}; + + +/* How to treat gaps in loadable segments. */ +static enum + { + gaps_ignore = 0, + gaps_match + } + gaps; + +/* Structure to hold information about used regions. */ +struct region +{ + GElf_Addr from; + GElf_Addr to; + struct region *next; +}; + +/* Nonzero if only exit status is wanted. */ +static bool quiet; + + +int +main (int argc, char *argv[]) +{ + /* Set locale. */ + (void) setlocale (LC_ALL, ""); + + /* Make sure the message catalog can be found. */ + (void) bindtextdomain (PACKAGE, LOCALEDIR); + + /* Initialize the message catalog. */ + (void) textdomain (PACKAGE); + + /* Parse and process arguments. */ + int remaining; + (void) argp_parse (&argp, argc, argv, 0, &remaining, NULL); + + /* We expect exactly two non-option parameters. */ + if (remaining + 2 != argc) + { + fputs (gettext ("Invalid number of parameters.\n"), stderr); + argp_help (&argp, stderr, ARGP_HELP_SEE, program_invocation_short_name); + exit (1); + } + + /* Comparing the files is done in two phases: + 1. compare all sections. Sections which are irrelevant (i.e., if + strip would remove them) are ignored. Some section types are + handled special. + 2. all parts of the loadable segments which are not parts of any + section is compared according to the rules of the --gaps option. + */ + int result = 0; + elf_version (EV_CURRENT); + + const char *const fname1 = argv[remaining]; + int fd1; + Ebl *ebl1; + Elf *elf1 = open_file (fname1, &fd1, &ebl1); + + const char *const fname2 = argv[remaining + 1]; + int fd2; + Ebl *ebl2; + Elf *elf2 = open_file (fname2, &fd2, &ebl2); + + GElf_Ehdr ehdr1_mem; + GElf_Ehdr *ehdr1 = gelf_getehdr (elf1, &ehdr1_mem); + if (ehdr1 == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot get ELF header of \"%s\": %s"), + fname1, elf_errmsg (-1)); + GElf_Ehdr ehdr2_mem; + GElf_Ehdr *ehdr2 = gelf_getehdr (elf2, &ehdr2_mem); + if (ehdr2 == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot get ELF header of \"%s\": %s"), + fname2, elf_errmsg (-1)); + + /* Compare the ELF headers. */ + if (memcmp (ehdr1->e_ident, ehdr2->e_ident, EI_NIDENT) != 0 + || ehdr1->e_type != ehdr2->e_type + || ehdr1->e_machine != ehdr2->e_machine + || ehdr1->e_version != ehdr2->e_version + || ehdr1->e_entry != ehdr2->e_entry + || ehdr1->e_phoff != ehdr2->e_phoff + || ehdr1->e_flags != ehdr2->e_flags + || ehdr1->e_ehsize != ehdr2->e_ehsize + || ehdr1->e_phentsize != ehdr2->e_phentsize + || ehdr1->e_phnum != ehdr2->e_phnum + || ehdr1->e_shentsize != ehdr2->e_shentsize + || ehdr1->e_shnum != ehdr2->e_shnum + || ehdr1->e_shstrndx != ehdr2->e_shstrndx) + { + if (! quiet) + error (0, 0, gettext ("%s %s diff: ELF header"), fname1, fname2); + result = 1; + goto out; + } + + /* Iterate over all sections. We expect the sections in the two + files to match exactly. */ + Elf_Scn *scn1 = NULL; + Elf_Scn *scn2 = NULL; + struct region *regions = NULL; + size_t nregions = 0; + while (1) + { + GElf_Shdr shdr1_mem; + GElf_Shdr *shdr1; + const char *sname1 = NULL; + do + { + scn1 = elf_nextscn (elf1, scn1); + shdr1 = gelf_getshdr (scn1, &shdr1_mem); + if (shdr1 != NULL) + sname1 = elf_strptr (elf1, ehdr1->e_shstrndx, shdr1->sh_name); + } + while (scn1 != NULL + && ebl_section_strip_p (ebl1, ehdr1, shdr1, sname1, true, false)); + + GElf_Shdr shdr2_mem; + GElf_Shdr *shdr2; + const char *sname2 = NULL; + do + { + scn2 = elf_nextscn (elf2, scn2); + shdr2 = gelf_getshdr (scn2, &shdr2_mem); + if (shdr2 != NULL) + sname2 = elf_strptr (elf2, ehdr2->e_shstrndx, shdr2->sh_name); + } + while (scn2 != NULL + && ebl_section_strip_p (ebl2, ehdr2, shdr2, sname2, true, false)); + + if (scn1 == NULL || scn2 == NULL) + break; + + if (gaps != gaps_ignore && (shdr1->sh_flags & SHF_ALLOC) != 0) + { + struct region *newp = (struct region *) alloca (sizeof (*newp)); + newp->from = shdr1->sh_offset; + newp->to = shdr1->sh_offset + shdr1->sh_size; + newp->next = regions; + regions = newp; + + ++nregions; + } + + /* Compare the headers. We allow the name to be at a different + location. */ + if (strcmp (sname1, sname2) != 0) + { + header_mismatch: + error (0, 0, gettext ("%s %s differ: section header"), + fname1, fname2); + result = 1; + goto out; + } + + /* We ignore certain sections. */ + if (strcmp (sname1, ".gnu_debuglink") == 0 + || strcmp (sname1, ".gnu.prelink_undo") == 0) + continue; + + if (shdr1->sh_type != shdr2->sh_type + // XXX Any flags which should be ignored? + || shdr1->sh_flags != shdr2->sh_flags + || shdr1->sh_addr != shdr2->sh_addr + || shdr1->sh_offset != shdr2->sh_offset + || shdr1->sh_size != shdr2->sh_size + || shdr1->sh_link != shdr2->sh_link + || shdr1->sh_info != shdr2->sh_info + || shdr1->sh_addralign != shdr2->sh_addralign + || shdr1->sh_entsize != shdr2->sh_entsize) + goto header_mismatch; + + Elf_Data *data1 = elf_getdata (scn1, NULL); + if (data1 == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get content of section %zu in \"%s\": %s"), + elf_ndxscn (scn1), fname1, elf_errmsg (-1)); + + Elf_Data *data2 = elf_getdata (scn2, NULL); + if (data2 == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get content of section %zu in \"%s\": %s"), + elf_ndxscn (scn2), fname2, elf_errmsg (-1)); + + switch (shdr1->sh_type) + { + case SHT_DYNSYM: + case SHT_SYMTAB: + /* Iterate over the symbol table. We ignore the st_size + value of undefined symbols. */ + for (int ndx = 0; ndx < (int) (shdr1->sh_size / shdr1->sh_entsize); + ++ndx) + { + GElf_Sym sym1_mem; + GElf_Sym *sym1 = gelf_getsym (data1, ndx, &sym1_mem); + if (sym1 == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get symbol in \"%s\": %s"), + fname1, elf_errmsg (-1)); + GElf_Sym sym2_mem; + GElf_Sym *sym2 = gelf_getsym (data2, ndx, &sym2_mem); + if (sym2 == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get symbol in \"%s\": %s"), + fname2, elf_errmsg (-1)); + + const char *name1 = elf_strptr (elf1, shdr1->sh_link, + sym1->st_name); + const char *name2 = elf_strptr (elf2, shdr2->sh_link, + sym2->st_name); + if (strcmp (name1, name2) != 0 + || sym1->st_value != sym2->st_value + || (sym1->st_size != sym2->st_size + && sym1->st_shndx != SHN_UNDEF) + || sym1->st_info != sym2->st_info + || sym1->st_other != sym2->st_other + || sym1->st_shndx != sym1->st_shndx) + { + // XXX Do we want to allow reordered symbol tables? + if (! quiet) + error (0, 0, gettext ("%s %s differ: symbol table"), + fname1, fname2); + result = 1; + goto out; + } + + if (sym1->st_shndx == SHN_UNDEF + && sym1->st_size != sym2->st_size) + { + /* The size of the symbol in the object defining it + might have changed. That is OK unless the symbol + is used in a copy relocation. Look over the + sections in both files and determine which + relocation section uses this symbol table + section. Then look through the relocations to + see whether any copy relocation references this + symbol. */ + if (search_for_copy_reloc (ebl1, elf_ndxscn (scn1), ndx) + || search_for_copy_reloc (ebl2, elf_ndxscn (scn2), ndx)) + { + if (! quiet) + error (0, 0, gettext ("%s %s differ: symbol table"), + fname1, fname2); + result = 1; + goto out; + } + } + } + break; + + default: + /* Compare the section content byte for byte. */ + assert (shdr1->sh_type == SHT_NOBITS + || (data1->d_buf != NULL || data1->d_size == 0)); + assert (shdr2->sh_type == SHT_NOBITS + || (data2->d_buf != NULL || data1->d_size == 0)); + + if (data1->d_size != data2->d_size + || (shdr1->sh_type != SHT_NOBITS + && memcmp (data1->d_buf, data2->d_buf, data1->d_size) != 0)) + { + if (! quiet) + error (0, 0, gettext ("%s %s differ: section content"), + fname1, fname2); + result = 1; + goto out; + } + break; + } + } + + if (scn1 != scn2) + { + if (! quiet) + error (0, 0, + gettext ("%s %s differ: unequal amount of important sections"), + fname1, fname2); + result = 1; + goto out; + } + + /* We we look at gaps, create artificial ones for the parts of the + program which we are not in sections. */ + struct region ehdr_region; + struct region phdr_region; + if (gaps != gaps_ignore) + { + ehdr_region.from = 0; + ehdr_region.to = ehdr1->e_ehsize; + ehdr_region.next = &phdr_region; + + phdr_region.from = ehdr1->e_phoff; + phdr_region.to = ehdr1->e_phoff + ehdr1->e_phnum * ehdr1->e_phentsize; + phdr_region.next = regions; + + regions = &ehdr_region; + nregions += 2; + } + + /* If we need to look at the gaps we need access to the file data. */ + char *raw1 = NULL; + size_t size1 = 0; + char *raw2 = NULL; + size_t size2 = 0; + struct region *regionsarr = alloca (nregions * sizeof (struct region)); + if (gaps != gaps_ignore) + { + raw1 = elf_rawfile (elf1, &size1); + if (raw1 == NULL ) + error (EXIT_FAILURE, 0, gettext ("cannot load data of \"%s\": %s"), + fname1, elf_errmsg (-1)); + + raw2 = elf_rawfile (elf2, &size2); + if (raw2 == NULL ) + error (EXIT_FAILURE, 0, gettext ("cannot load data of \"%s\": %s"), + fname2, elf_errmsg (-1)); + + for (size_t cnt = 0; cnt < nregions; ++cnt) + { + regionsarr[cnt] = *regions; + regions = regions->next; + } + + qsort (regionsarr, nregions, sizeof (regionsarr[0]), regioncompare); + } + + /* Compare the program header tables. */ + for (int ndx = 0; ndx < ehdr1->e_phnum; ++ndx) + { + GElf_Phdr phdr1_mem; + GElf_Phdr *phdr1 = gelf_getphdr (elf1, ndx, &phdr1_mem); + if (ehdr1 == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get program header entry %d of \"%s\": %s"), + ndx, fname1, elf_errmsg (-1)); + GElf_Phdr phdr2_mem; + GElf_Phdr *phdr2 = gelf_getphdr (elf2, ndx, &phdr2_mem); + if (ehdr2 == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get program header entry %d of \"%s\": %s"), + ndx, fname2, elf_errmsg (-1)); + + if (memcmp (phdr1, phdr2, sizeof (GElf_Phdr)) != 0) + { + if (! quiet) + error (0, 0, gettext ("%s %s differ: program header %d"), + fname1, fname2, ndx); + result = 1; + goto out; + } + + if (gaps != gaps_ignore && phdr1->p_type == PT_LOAD) + { + size_t cnt = 0; + while (cnt < nregions && regionsarr[cnt].to < phdr1->p_offset) + ++cnt; + + GElf_Off last = phdr1->p_offset; + GElf_Off end = phdr1->p_offset + phdr1->p_filesz; + while (cnt < nregions && regionsarr[cnt].from < end) + { + if (last < regionsarr[cnt].from) + { + /* Compare the [LAST,FROM) region. */ + assert (gaps == gaps_match); + if (memcmp (raw1 + last, raw2 + last, + regionsarr[cnt].from - last) != 0) + { + gapmismatch: + if (!quiet) + error (0, 0, gettext ("%s %s differ: gap"), + fname1, fname2); + result = 1; + goto out; + } + + } + last = regionsarr[cnt].to; + ++cnt; + } + + if (cnt == nregions && last < end) + goto gapmismatch; + } + } + + out: + elf_end (elf1); + elf_end (elf2); + close (fd1); + close (fd2); + + return result; +} + + +/* Print the version information. */ +static void +print_version (FILE *stream, struct argp_state *state __attribute__ ((unused))) +{ + fprintf (stream, "elfcmp (%s) %s\n", PACKAGE_NAME, VERSION); + fprintf (stream, gettext ("\ +Copyright (C) %s Red Hat, Inc.\n\ +This is free software; see the source for copying conditions. There is NO\n\ +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ +"), "2005"); + fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); +} + + +/* Handle program arguments. */ +static error_t +parse_opt (int key, char *arg, + struct argp_state *state __attribute__ ((unused))) +{ + switch (key) + { + case 'q': + quiet = true; + break; + + case OPT_GAPS: + if (strcasecmp (arg, "ignore") == 0) + gaps = gaps_ignore; + else if (strcasecmp (arg, "match") == 0) + gaps = gaps_match; + else + { + fprintf (stderr, + gettext ("Invalid value \"%s\" for --gaps parameter."), + arg); + argp_help (&argp, stderr, ARGP_HELP_SEE, + program_invocation_short_name); + exit (1); + } + break; + + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + + +static Elf * +open_file (const char *fname, int *fdp, Ebl **eblp) +{ + int fd = open (fname, O_RDONLY); + if (unlikely (fd == -1)) + error (EXIT_FAILURE, errno, gettext ("cannot open \"%s\""), fname); + Elf *elf = elf_begin (fd, ELF_C_READ_MMAP, NULL); + if (elf == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create ELF descriptor for \"%s\": %s"), + fname, elf_errmsg (-1)); + Ebl *ebl = ebl_openbackend (elf); + if (ebl == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create EBL descriptor for \"%s\""), fname); + + *fdp = fd; + *eblp = ebl; + return elf; +} + + +static bool +search_for_copy_reloc (Ebl *ebl, size_t scnndx, int symndx) +{ + Elf_Scn *scn = NULL; + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header of section %zu: %s"), + elf_ndxscn (scn), elf_errmsg (-1)); + + if ((shdr->sh_type != SHT_REL && shdr->sh_type != SHT_RELA) + || shdr->sh_link != scnndx) + continue; + + Elf_Data *data = elf_getdata (scn, NULL); + if (data == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get content of section %zu: %s"), + elf_ndxscn (scn), elf_errmsg (-1)); + + if (shdr->sh_type == SHT_REL) + for (int ndx = 0; ndx < (int) (shdr->sh_size / shdr->sh_entsize); + ++ndx) + { + GElf_Rel rel_mem; + GElf_Rel *rel = gelf_getrel (data, ndx, &rel_mem); + if (rel == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot get relocation: %s"), + elf_errmsg (-1)); + + if ((int) GELF_R_SYM (rel->r_info) == symndx + && ebl_copy_reloc_p (ebl, GELF_R_TYPE (rel->r_info))) + return true; + } + else + for (int ndx = 0; ndx < (int) (shdr->sh_size / shdr->sh_entsize); + ++ndx) + { + GElf_Rela rela_mem; + GElf_Rela *rela = gelf_getrela (data, ndx, &rela_mem); + if (rela == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot get relocation: %s"), + elf_errmsg (-1)); + + if ((int) GELF_R_SYM (rela->r_info) == symndx + && ebl_copy_reloc_p (ebl, GELF_R_TYPE (rela->r_info))) + return true; + } + } + + return false; +} + + +static int +regioncompare (const void *p1, const void *p2) +{ + const struct region *r1 = (const struct region *) p1; + const struct region *r2 = (const struct region *) p2; + + if (r1->from < r2->from) + return -1; + return 1; +} diff --git a/src/elflint.c b/src/elflint.c new file mode 100644 index 0000000..0357237 --- /dev/null +++ b/src/elflint.c @@ -0,0 +1,2617 @@ +/* Pedantic checking of ELF files compliance with gABI/psABI spec. + Copyright (C) 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include "../libebl/libeblP.h" + + +/* Name and version of program. */ +static void print_version (FILE *stream, struct argp_state *state); +void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; + +/* Bug report address. */ +const char *argp_program_bug_address = PACKAGE_BUGREPORT; + +#define ARGP_strict 300 +#define ARGP_gnuld 301 + +/* Definitions of arguments for argp functions. */ +static const struct argp_option options[] = +{ + + { "strict", ARGP_strict, NULL, 0, + N_("Be extremely strict, flag level 2 features."), 0 }, + { "quiet", 'q', NULL, 0, N_("Do not print anything if successful"), 0 }, + { "debuginfo", 'd', NULL, 0, N_("Binary is a separate debuginfo file"), 0 }, + { "gnu-ld", ARGP_gnuld, NULL, 0, + N_("Binary has been created with GNU ld and is therefore known to be \ +broken in certain ways"), 0 }, + { NULL, 0, NULL, 0, NULL, 0 } +}; + +/* Short description of program. */ +static const char doc[] = N_("\ +Pedantic checking of ELF files compliance with gABI/psABI spec."); + +/* Strings for arguments in help texts. */ +static const char args_doc[] = N_("FILE..."); + +/* Prototype for option handler. */ +static error_t parse_opt (int key, char *arg, struct argp_state *state); + +/* Data structure to communicate with argp functions. */ +static struct argp argp = +{ + options, parse_opt, args_doc, doc, NULL, NULL, NULL +}; + + +/* Declarations of local functions. */ +static void process_file (int fd, Elf *elf, const char *prefix, + const char *suffix, const char *fname, size_t size, + bool only_one); +static void process_elf_file (Elf *elf, const char *prefix, const char *suffix, + const char *fname, size_t size, bool only_one); + +/* Report an error. */ +#define ERROR(str, args...) \ + do { \ + printf (str, ##args); \ + ++error_count; \ + } while (0) +static unsigned int error_count; + +/* True if we should perform very strict testing. */ +static bool be_strict; + +/* True if no message is to be printed if the run is succesful. */ +static bool be_quiet; + +/* True if binary is from strip -f, not a normal ELF file. */ +static bool is_debuginfo; + +/* True if binary is assumed to be generated with GNU ld. */ +static bool gnuld; + +/* Index of section header string table. */ +static uint32_t shstrndx; + +/* Array to count references in section groups. */ +static int *scnref; + + +int +main (int argc, char *argv[]) +{ + /* Set locale. */ + setlocale (LC_ALL, ""); + + /* Initialize the message catalog. */ + textdomain (PACKAGE); + + /* Parse and process arguments. */ + int remaining; + argp_parse (&argp, argc, argv, 0, &remaining, NULL); + + /* Before we start tell the ELF library which version we are using. */ + elf_version (EV_CURRENT); + + /* Now process all the files given at the command line. */ + bool only_one = remaining + 1 == argc; + do + { + /* Open the file. */ + int fd = open (argv[remaining], O_RDONLY); + if (fd == -1) + { + error (0, errno, gettext ("cannot open input file")); + continue; + } + + /* Create an `Elf' descriptor. */ + Elf *elf = elf_begin (fd, ELF_C_READ_MMAP, NULL); + if (elf == NULL) + ERROR (gettext ("cannot generate Elf descriptor: %s\n"), + elf_errmsg (-1)); + else + { + unsigned int prev_error_count = error_count; + struct stat64 st; + + if (fstat64 (fd, &st) != 0) + { + printf ("cannot stat '%s': %m\n", argv[remaining]); + close (fd); + continue; + } + + process_file (fd, elf, NULL, NULL, argv[remaining], st.st_size, + only_one); + + /* Now we can close the descriptor. */ + if (elf_end (elf) != 0) + ERROR (gettext ("error while closing Elf descriptor: %s\n"), + elf_errmsg (-1)); + + if (prev_error_count == error_count && !be_quiet) + puts (gettext ("No errors")); + } + + close (fd); + } + while (++remaining < argc); + + return error_count != 0; +} + + +/* Handle program arguments. */ +static error_t +parse_opt (int key, char *arg __attribute__ ((unused)), + struct argp_state *state __attribute__ ((unused))) +{ + switch (key) + { + case ARGP_strict: + be_strict = true; + break; + + case 'q': + be_quiet = true; + break; + + case 'd': + is_debuginfo = true; + + case ARGP_gnuld: + gnuld = true; + break; + + case ARGP_KEY_NO_ARGS: + fputs (gettext ("Missing file name.\n"), stderr); + argp_help (&argp, stderr, ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR, + program_invocation_short_name); + exit (1); + + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + + +/* Print the version information. */ +static void +print_version (FILE *stream, struct argp_state *state __attribute__ ((unused))) +{ + fprintf (stream, "elflint (%s) %s\n", PACKAGE_NAME, VERSION); + fprintf (stream, gettext ("\ +Copyright (C) %s Red Hat, Inc.\n\ +This is free software; see the source for copying conditions. There is NO\n\ +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ +"), "2005"); + fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); +} + + +/* Process one file. */ +static void +process_file (int fd, Elf *elf, const char *prefix, const char *suffix, + const char *fname, size_t size, bool only_one) +{ + /* We can handle two types of files: ELF files and archives. */ + Elf_Kind kind = elf_kind (elf); + + switch (kind) + { + case ELF_K_ELF: + /* Yes! It's an ELF file. */ + process_elf_file (elf, prefix, suffix, fname, size, only_one); + break; + + case ELF_K_AR: + { + Elf *subelf; + Elf_Cmd cmd = ELF_C_READ_MMAP; + size_t prefix_len = prefix == NULL ? 0 : strlen (prefix); + size_t fname_len = strlen (fname) + 1; + char new_prefix[prefix_len + 1 + fname_len]; + char new_suffix[(suffix == NULL ? 0 : strlen (suffix)) + 2]; + char *cp = new_prefix; + + /* Create the full name of the file. */ + if (prefix != NULL) + { + cp = mempcpy (cp, prefix, prefix_len); + *cp++ = '('; + strcpy (stpcpy (new_suffix, suffix), ")"); + } + else + new_suffix[0] = '\0'; + memcpy (cp, fname, fname_len); + + /* It's an archive. We process each file in it. */ + while ((subelf = elf_begin (fd, cmd, elf)) != NULL) + { + kind = elf_kind (subelf); + + /* Call this function recursively. */ + if (kind == ELF_K_ELF || kind == ELF_K_AR) + { + Elf_Arhdr *arhdr = elf_getarhdr (subelf); + assert (arhdr != NULL); + + process_file (fd, subelf, new_prefix, new_suffix, + arhdr->ar_name, arhdr->ar_size, false); + } + + /* Get next archive element. */ + cmd = elf_next (subelf); + if (elf_end (subelf) != 0) + ERROR (gettext (" error while freeing sub-ELF descriptor: %s\n"), + elf_errmsg (-1)); + } + } + break; + + default: + /* We cannot do anything. */ + ERROR (gettext ("\ +Not an ELF file - it has the wrong magic bytes at the start")); + break; + } +} + + +static const char * +section_name (Ebl *ebl, int idx) +{ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + shdr = gelf_getshdr (elf_getscn (ebl->elf, idx), &shdr_mem); + + return elf_strptr (ebl->elf, shstrndx, shdr->sh_name); +} + + +static const int valid_e_machine[] = + { + EM_M32, EM_SPARC, EM_386, EM_68K, EM_88K, EM_860, EM_MIPS, EM_S370, + EM_MIPS_RS3_LE, EM_PARISC, EM_VPP500, EM_SPARC32PLUS, EM_960, EM_PPC, + EM_PPC64, EM_S390, EM_V800, EM_FR20, EM_RH32, EM_RCE, EM_ARM, + EM_FAKE_ALPHA, EM_SH, EM_SPARCV9, EM_TRICORE, EM_ARC, EM_H8_300, + EM_H8_300H, EM_H8S, EM_H8_500, EM_IA_64, EM_MIPS_X, EM_COLDFIRE, + EM_68HC12, EM_MMA, EM_PCP, EM_NCPU, EM_NDR1, EM_STARCORE, EM_ME16, + EM_ST100, EM_TINYJ, EM_X86_64, EM_PDSP, EM_FX66, EM_ST9PLUS, EM_ST7, + EM_68HC16, EM_68HC11, EM_68HC08, EM_68HC05, EM_SVX, EM_ST19, EM_VAX, + EM_CRIS, EM_JAVELIN, EM_FIREPATH, EM_ZSP, EM_MMIX, EM_HUANY, EM_PRISM, + EM_AVR, EM_FR30, EM_D10V, EM_D30V, EM_V850, EM_M32R, EM_MN10300, + EM_MN10200, EM_PJ, EM_OPENRISC, EM_ARC_A5, EM_XTENSA + }; +#define nvalid_e_machine \ + (sizeof (valid_e_machine) / sizeof (valid_e_machine[0])) + + +/* Number of sections. */ +static unsigned int shnum; + + +static void +check_elf_header (Ebl *ebl, GElf_Ehdr *ehdr, size_t size) +{ + char buf[512]; + size_t cnt; + + /* Check e_ident field. */ + if (ehdr->e_ident[EI_MAG0] != ELFMAG0) + ERROR ("e_ident[%d] != '%c'\n", EI_MAG0, ELFMAG0); + if (ehdr->e_ident[EI_MAG1] != ELFMAG1) + ERROR ("e_ident[%d] != '%c'\n", EI_MAG1, ELFMAG1); + if (ehdr->e_ident[EI_MAG2] != ELFMAG2) + ERROR ("e_ident[%d] != '%c'\n", EI_MAG2, ELFMAG2); + if (ehdr->e_ident[EI_MAG3] != ELFMAG3) + ERROR ("e_ident[%d] != '%c'\n", EI_MAG3, ELFMAG3); + + if (ehdr->e_ident[EI_CLASS] != ELFCLASS32 + && ehdr->e_ident[EI_CLASS] != ELFCLASS64) + ERROR (gettext ("e_ident[%d] == %d is no known class\n"), + EI_CLASS, ehdr->e_ident[EI_CLASS]); + + if (ehdr->e_ident[EI_DATA] != ELFDATA2LSB + && ehdr->e_ident[EI_DATA] != ELFDATA2MSB) + ERROR (gettext ("e_ident[%d] == %d is no known data encoding\n"), + EI_DATA, ehdr->e_ident[EI_DATA]); + + if (ehdr->e_ident[EI_VERSION] != EV_CURRENT) + ERROR (gettext ("unknown ELF header version number e_ident[%d] == %d\n"), + EI_VERSION, ehdr->e_ident[EI_VERSION]); + + /* We currently don't handle any OS ABIs. */ + if (ehdr->e_ident[EI_OSABI] != ELFOSABI_NONE) + ERROR (gettext ("unsupported OS ABI e_ident[%d] == \"%s\"\n"), + EI_OSABI, + ebl_osabi_name (ebl, ehdr->e_ident[EI_OSABI], buf, sizeof (buf))); + + /* No ABI versions other than zero supported either. */ + if (ehdr->e_ident[EI_ABIVERSION] != 0) + ERROR (gettext ("unsupport ABI version e_ident[%d] == %d\n"), + EI_ABIVERSION, ehdr->e_ident[EI_ABIVERSION]); + + for (cnt = EI_PAD; cnt < EI_NIDENT; ++cnt) + if (ehdr->e_ident[cnt] != 0) + ERROR (gettext ("e_ident[%zu] is not zero\n"), cnt); + + /* Check the e_type field. */ + if (ehdr->e_type != ET_REL && ehdr->e_type != ET_EXEC + && ehdr->e_type != ET_DYN && ehdr->e_type != ET_CORE) + ERROR (gettext ("unknown object file type %d\n"), ehdr->e_type); + + /* Check the e_machine field. */ + for (cnt = 0; cnt < nvalid_e_machine; ++cnt) + if (valid_e_machine[cnt] == ehdr->e_machine) + break; + if (cnt == nvalid_e_machine) + ERROR (gettext ("unknown machine type %d\n"), ehdr->e_machine); + + /* Check the e_version field. */ + if (ehdr->e_version != EV_CURRENT) + ERROR (gettext ("unknown object file version\n")); + + /* Check the e_phoff and e_phnum fields. */ + if (ehdr->e_phoff == 0) + { + if (ehdr->e_phnum != 0) + ERROR (gettext ("invalid program header offset\n")); + else if (ehdr->e_type == ET_EXEC || ehdr->e_type == ET_DYN) + ERROR (gettext ("\ +executables and DSOs cannot have zero program header offset\n")); + } + else if (ehdr->e_phnum == 0) + ERROR (gettext ("invalid number of program header entries\n")); + + /* Check the e_shoff field. */ + shnum = ehdr->e_shnum; + shstrndx = ehdr->e_shstrndx; + if (ehdr->e_shoff == 0) + { + if (ehdr->e_shnum != 0) + ERROR (gettext ("invalid section header table offset\n")); + else if (ehdr->e_type != ET_EXEC && ehdr->e_type != ET_DYN + && ehdr->e_type != ET_CORE) + ERROR (gettext ("section header table must be present\n")); + } + else + { + if (ehdr->e_shnum == 0) + { + /* Get the header of the zeroth section. The sh_size field + might contain the section number. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + shdr = gelf_getshdr (elf_getscn (ebl->elf, 0), &shdr_mem); + if (shdr != NULL) + { + /* The error will be reported later. */ + if (shdr->sh_size == 0) + ERROR (gettext ("\ +invalid number of section header table entries\n")); + else + shnum = shdr->sh_size; + } + } + + if (ehdr->e_shstrndx == SHN_XINDEX) + { + /* Get the header of the zeroth section. The sh_size field + might contain the section number. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + shdr = gelf_getshdr (elf_getscn (ebl->elf, 0), &shdr_mem); + if (shdr != NULL) + { + /* The error will be reported later. */ + if (shdr->sh_link >= shnum) + ERROR (gettext ("invalid section header index\n")); + else + shstrndx = shdr->sh_link; + } + } + else if (shstrndx >= shnum) + ERROR (gettext ("invalid section header index\n")); + } + + /* Check the e_flags field. */ + if (!ebl_machine_flag_check (ebl, ehdr->e_flags)) + ERROR (gettext ("invalid machine flags: %s\n"), + ebl_machine_flag_name (ebl, ehdr->e_flags, buf, sizeof (buf))); + + /* Check e_ehsize, e_phentsize, and e_shentsize fields. */ + if (gelf_getclass (ebl->elf) == ELFCLASS32) + { + if (ehdr->e_ehsize != 0 && ehdr->e_ehsize != sizeof (Elf32_Ehdr)) + ERROR (gettext ("invalid ELF header size: %hd\n"), ehdr->e_ehsize); + + if (ehdr->e_phentsize != 0 && ehdr->e_phentsize != sizeof (Elf32_Phdr)) + ERROR (gettext ("invalid program header size: %hd\n"), + ehdr->e_phentsize); + else if (ehdr->e_phoff + ehdr->e_phnum * ehdr->e_phentsize > size) + ERROR (gettext ("invalid program header position or size\n")); + + if (ehdr->e_shentsize != 0 && ehdr->e_shentsize != sizeof (Elf32_Shdr)) + ERROR (gettext ("invalid section header size: %hd\n"), + ehdr->e_shentsize); + else if (ehdr->e_shoff + ehdr->e_shnum * ehdr->e_shentsize > size) + ERROR (gettext ("invalid section header position or size\n")); + } + else if (gelf_getclass (ebl->elf) == ELFCLASS64) + { + if (ehdr->e_ehsize != 0 && ehdr->e_ehsize != sizeof (Elf64_Ehdr)) + ERROR (gettext ("invalid ELF header size: %hd\n"), ehdr->e_ehsize); + + if (ehdr->e_phentsize != 0 && ehdr->e_phentsize != sizeof (Elf64_Phdr)) + ERROR (gettext ("invalid program header size: %hd\n"), + ehdr->e_phentsize); + else if (ehdr->e_phoff + ehdr->e_phnum * ehdr->e_phentsize > size) + ERROR (gettext ("invalid program header position or size\n")); + + if (ehdr->e_shentsize != 0 && ehdr->e_shentsize != sizeof (Elf64_Shdr)) + ERROR (gettext ("invalid section header size: %hd\n"), + ehdr->e_shentsize); + else if (ehdr->e_shoff + ehdr->e_shnum * ehdr->e_shentsize > size) + ERROR (gettext ("invalid section header position or size\n")); + } +} + + +/* Check that there is a section group section with index < IDX which + contains section IDX and that there is exactly one. */ +static void +check_scn_group (Ebl *ebl, int idx) +{ + if (scnref[idx] == 0) + { + /* No reference so far. Search following sections, maybe the + order is wrong. */ + size_t cnt; + + for (cnt = idx + 1; cnt < shnum; ++cnt) + { + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + Elf_Data *data; + Elf32_Word *grpdata; + size_t inner; + + scn = elf_getscn (ebl->elf, cnt); + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + /* We cannot get the section header so we cannot check it. + The error to get the section header will be shown + somewhere else. */ + continue; + + if (shdr->sh_type != SHT_GROUP) + continue; + + data = elf_getdata (scn, NULL); + if (data == NULL || data->d_size < sizeof (Elf32_Word)) + /* Cannot check the section. */ + continue; + + grpdata = (Elf32_Word *) data->d_buf; + for (inner = 1; inner < data->d_size / sizeof (Elf32_Word); ++inner) + if (grpdata[inner] == (Elf32_Word) idx) + goto out; + } + + out: + if (cnt == shnum) + ERROR (gettext ("\ +section [%2d] '%s': section with SHF_GROUP flag set not part of a section group\n"), + idx, section_name (ebl, idx)); + else + ERROR (gettext ("\ +section [%2d] '%s': section group [%2zu] '%s' does not preceed group member\n"), + idx, section_name (ebl, idx), + cnt, section_name (ebl, cnt)); + } +} + + +static void +check_symtab (Ebl *ebl, GElf_Ehdr *ehdr, int idx) +{ + bool no_xndx_warned = false; + int no_pt_tls = 0; + + Elf_Scn *scn = elf_getscn (ebl->elf, idx); + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + GElf_Shdr strshdr_mem; + GElf_Shdr *strshdr = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), + &strshdr_mem); + if (shdr == NULL || strshdr == NULL) + return; + Elf_Data *data = elf_getdata (scn, NULL); + if (data == NULL) + { + ERROR (gettext ("section [%2d] '%s': cannot get section data\n"), + idx, section_name (ebl, idx)); + return; + } + + if (strshdr->sh_type != SHT_STRTAB) + ERROR (gettext ("section [%2d] '%s': referenced as string table for section [%2d] '%s' but type is not SHT_STRTAB\n"), + shdr->sh_link, section_name (ebl, shdr->sh_link), + idx, section_name (ebl, idx)); + + /* Search for an extended section index table section. */ + size_t cnt; + GElf_Shdr xndxshdr_mem; + GElf_Shdr *xndxshdr = NULL; + Elf_Data *xndxdata = NULL; + Elf32_Word xndxscnidx = 0; + for (cnt = 1; cnt < shnum; ++cnt) + if (cnt != (size_t) idx) + { + Elf_Scn *xndxscn = elf_getscn (ebl->elf, cnt); + xndxshdr = gelf_getshdr (xndxscn, &xndxshdr_mem); + xndxdata = elf_getdata (xndxscn, NULL); + xndxscnidx = elf_ndxscn (xndxscn); + + if (xndxshdr == NULL || xndxdata == NULL) + continue; + + if (xndxshdr->sh_type == SHT_SYMTAB_SHNDX + && xndxshdr->sh_link == (GElf_Word) idx) + break; + } + if (cnt == shnum) + { + xndxshdr = NULL; + xndxdata = NULL; + } + + if (shdr->sh_entsize != gelf_fsize (ebl->elf, ELF_T_SYM, 1, EV_CURRENT)) + ERROR (gettext ("\ +section [%2zu] '%s': entry size is does not match ElfXX_Sym\n"), + cnt, section_name (ebl, cnt)); + + /* Test the zeroth entry. */ + GElf_Sym sym_mem; + Elf32_Word xndx; + GElf_Sym *sym = gelf_getsymshndx (data, xndxdata, 0, &sym_mem, &xndx); + if (sym == NULL) + ERROR (gettext ("section [%2d] '%s': cannot get symbol %d: %s\n"), + idx, section_name (ebl, idx), 0, elf_errmsg (-1)); + else + { + if (sym->st_name != 0) + ERROR (gettext ("section [%2d] '%s': '%s' in zeroth entry not zero\n"), + idx, section_name (ebl, idx), "st_name"); + if (sym->st_value != 0) + ERROR (gettext ("section [%2d] '%s': '%s' in zeroth entry not zero\n"), + idx, section_name (ebl, idx), "st_value"); + if (sym->st_size != 0) + ERROR (gettext ("section [%2d] '%s': '%s' in zeroth entry not zero\n"), + idx, section_name (ebl, idx), "st_size"); + if (sym->st_info != 0) + ERROR (gettext ("section [%2d] '%s': '%s' in zeroth entry not zero\n"), + idx, section_name (ebl, idx), "st_info"); + if (sym->st_other != 0) + ERROR (gettext ("section [%2d] '%s': '%s' in zeroth entry not zero\n"), + idx, section_name (ebl, idx), "st_other"); + if (sym->st_shndx != 0) + ERROR (gettext ("section [%2d] '%s': '%s' in zeroth entry not zero\n"), + idx, section_name (ebl, idx), "st_shndx"); + if (xndxdata != NULL && xndx != 0) + ERROR (gettext ("\ +section [%2d] '%s': XINDEX for zeroth entry not zero\n"), + xndxscnidx, section_name (ebl, xndxscnidx)); + } + + for (cnt = 1; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) + { + sym = gelf_getsymshndx (data, xndxdata, cnt, &sym_mem, &xndx); + if (sym == NULL) + { + ERROR (gettext ("section [%2d] '%s': cannot get symbol %zu: %s\n"), + idx, section_name (ebl, idx), cnt, elf_errmsg (-1)); + continue; + } + + const char *name = NULL; + if (sym->st_name >= strshdr->sh_size) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: invalid name value\n"), + idx, section_name (ebl, idx), cnt); + else + { + name = elf_strptr (ebl->elf, shdr->sh_link, sym->st_name); + assert (name != NULL); + } + + if (sym->st_shndx == SHN_XINDEX) + { + if (xndxdata == NULL) + { + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: too large section index but no extended section index section\n"), + idx, section_name (ebl, idx), cnt); + no_xndx_warned = true; + } + else if (xndx < SHN_LORESERVE) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: XINDEX used for index which would fit in st_shndx (%" PRIu32 ")\n"), + xndxscnidx, section_name (ebl, xndxscnidx), cnt, + xndx); + } + else if ((sym->st_shndx >= SHN_LORESERVE + // && sym->st_shndx <= SHN_HIRESERVE always true + && sym->st_shndx != SHN_ABS + && sym->st_shndx != SHN_COMMON) + || (sym->st_shndx >= shnum + && (sym->st_shndx < SHN_LORESERVE + /* || sym->st_shndx > SHN_HIRESERVE always false */))) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: invalid section index\n"), + idx, section_name (ebl, idx), cnt); + else + xndx = sym->st_shndx; + + if (GELF_ST_TYPE (sym->st_info) >= STT_NUM) + ERROR (gettext ("section [%2d] '%s': symbol %zu: unknown type\n"), + idx, section_name (ebl, idx), cnt); + + if (GELF_ST_BIND (sym->st_info) >= STB_NUM) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: unknown symbol binding\n"), + idx, section_name (ebl, idx), cnt); + + if (xndx == SHN_COMMON) + { + /* Common symbols can only appear in relocatable files. */ + if (ehdr->e_type != ET_REL) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: COMMON only allowed in relocatable files\n"), + idx, section_name (ebl, idx), cnt); + if (cnt < shdr->sh_info) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: local COMMON symbols are nonsense\n"), + idx, section_name (ebl, idx), cnt); + if (GELF_R_TYPE (sym->st_info) == STT_FUNC) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: function in COMMON section is nonsense\n"), + idx, section_name (ebl, idx), cnt); + } + else if (xndx > 0 && xndx < shnum) + { + GElf_Shdr destshdr_mem; + GElf_Shdr *destshdr; + + destshdr = gelf_getshdr (elf_getscn (ebl->elf, xndx), &destshdr_mem); + if (destshdr != NULL) + { + if (GELF_ST_TYPE (sym->st_info) != STT_TLS) + { + if ((sym->st_value - destshdr->sh_addr) > destshdr->sh_size) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: st_value out of bounds\n"), + idx, section_name (ebl, idx), cnt); + else if ((sym->st_value - destshdr->sh_addr + sym->st_size) + > destshdr->sh_size) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu does not fit completely in referenced section [%2d] '%s'\n"), + idx, section_name (ebl, idx), cnt, + (int) xndx, section_name (ebl, xndx)); + } + else + { + if ((destshdr->sh_flags & SHF_TLS) == 0) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: referenced section [%2d] '%s' does not have SHF_TLS flag set\n"), + idx, section_name (ebl, idx), cnt, + (int) xndx, section_name (ebl, xndx)); + + if (ehdr->e_type == ET_REL) + { + /* For object files the symbol value must fall + into the section. */ + if (sym->st_value > destshdr->sh_size) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: st_value out of bounds of referenced section [%2d] '%s'\n"), + idx, section_name (ebl, idx), cnt, + (int) xndx, section_name (ebl, xndx)); + else if (sym->st_value + sym->st_size + > destshdr->sh_size) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu does not fit completely in referenced section [%2d] '%s'\n"), + idx, section_name (ebl, idx), cnt, + (int) xndx, section_name (ebl, xndx)); + } + else + { + GElf_Phdr phdr_mem; + GElf_Phdr *phdr = NULL; + int pcnt; + + for (pcnt = 0; pcnt < ehdr->e_phnum; ++pcnt) + { + phdr = gelf_getphdr (ebl->elf, pcnt, &phdr_mem); + if (phdr != NULL && phdr->p_type == PT_TLS) + break; + } + + if (pcnt == ehdr->e_phnum) + { + if (no_pt_tls++ == 0) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: TLS symbol but no TLS program header entry\n"), + idx, section_name (ebl, idx), cnt); + } + else + { + if (sym->st_value + < destshdr->sh_offset - phdr->p_offset) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: st_value short of referenced section [%2d] '%s'\n"), + idx, section_name (ebl, idx), cnt, + (int) xndx, section_name (ebl, xndx)); + else if (sym->st_value + > (destshdr->sh_offset - phdr->p_offset + + destshdr->sh_size)) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: st_value out of bounds of referenced section [%2d] '%s'\n"), + idx, section_name (ebl, idx), cnt, + (int) xndx, section_name (ebl, xndx)); + else if (sym->st_value + sym->st_size + > (destshdr->sh_offset - phdr->p_offset + + destshdr->sh_size)) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu does not fit completely in referenced section [%2d] '%s'\n"), + idx, section_name (ebl, idx), cnt, + (int) xndx, section_name (ebl, xndx)); + } + } + } + } + } + + if (GELF_ST_BIND (sym->st_info) == STB_LOCAL) + { + if (cnt >= shdr->sh_info) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: local symbol outside range described in sh_info\n"), + idx, section_name (ebl, idx), cnt); + } + else + { + if (cnt < shdr->sh_info) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: non-local symbol outside range described in sh_info\n"), + idx, section_name (ebl, idx), cnt); + } + + if (GELF_ST_TYPE (sym->st_info) == STT_SECTION + && GELF_ST_BIND (sym->st_info) != STB_LOCAL) + ERROR (gettext ("\ +section [%2d] '%s': symbol %zu: non-local section symbol\n"), + idx, section_name (ebl, idx), cnt); + + if (name != NULL) + { + if (strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0) + { + /* Check that address and size match the global offset + table. We have to locate the GOT by searching for a + section named ".got". */ + Elf_Scn *gscn = NULL; + GElf_Addr addr = 0; + GElf_Xword size = 0; + bool found = false; + + while ((gscn = elf_nextscn (ebl->elf, gscn)) != NULL) + { + GElf_Shdr gshdr_mem; + GElf_Shdr *gshdr = gelf_getshdr (gscn, &gshdr_mem); + assert (gshdr != NULL); + + const char *sname = elf_strptr (ebl->elf, ehdr->e_shstrndx, + gshdr->sh_name); + if (sname != NULL) + { + if (strcmp (sname, ".got.plt") == 0) + { + addr = gshdr->sh_addr; + size = gshdr->sh_size; + found = true; + break; + } + if (strcmp (sname, ".got") == 0) + { + addr = gshdr->sh_addr; + size = gshdr->sh_size; + found = true; + /* Do not stop looking. There might be a + .got.plt section. */ + } + } + } + + if (found) + { + /* Found it. */ + if (sym->st_value != addr) + /* This test is more strict than the psABIs which + usually allow the symbol to be in the middle of + the .got section, allowing negative offsets. */ + ERROR (gettext ("\ +section [%2d] '%s': _GLOBAL_OFFSET_TABLE_ symbol value %#" PRIx64 " does not match .got section address %#" PRIx64 "\n"), + idx, section_name (ebl, idx), + (uint64_t) sym->st_value, (uint64_t) addr); + + if (!gnuld && sym->st_size != size) + ERROR (gettext ("\ +section [%2d] '%s': _GLOBAL_OFFSET_TABLE_ symbol size %" PRIu64 " does not match .got section size %" PRIu64 "\n"), + idx, section_name (ebl, idx), + (uint64_t) sym->st_size, (uint64_t) size); + } + else + ERROR (gettext ("\ +section [%2d] '%s': _GLOBAL_OFFSET_TABLE_ symbol present, but no .got section\n"), + idx, section_name (ebl, idx)); + } + else if (strcmp (name, "_DYNAMIC") == 0) + { + /* Check that address and size match the dynamic + section. We locate the dynamic section via the + program header entry. */ + int pcnt; + + for (pcnt = 0; pcnt < ehdr->e_phnum; ++pcnt) + { + GElf_Phdr phdr_mem; + GElf_Phdr *phdr = gelf_getphdr (ebl->elf, pcnt, &phdr_mem); + + if (phdr != NULL && phdr->p_type == PT_DYNAMIC) + { + if (sym->st_value != phdr->p_vaddr) + ERROR (gettext ("\ +section [%2d] '%s': _DYNAMIC_ symbol value %#" PRIx64 " does not match dynamic segment address %#" PRIx64 "\n"), + idx, section_name (ebl, idx), + (uint64_t) sym->st_value, + (uint64_t) phdr->p_vaddr); + + if (!gnuld && sym->st_size != phdr->p_memsz) + ERROR (gettext ("\ +section [%2d] '%s': _DYNAMIC symbol size %" PRIu64 " does not match dynamic segment size %" PRIu64 "\n"), + idx, section_name (ebl, idx), + (uint64_t) sym->st_size, + (uint64_t) phdr->p_memsz); + + break; + } + } + } + } + } +} + + +static bool +is_rel_dyn (Ebl *ebl, GElf_Ehdr *ehdr, int idx, GElf_Shdr *shdr, bool rela) +{ + /* If this is no executable or DSO it cannot be a .rel.dyn section. */ + if (ehdr->e_type != ET_EXEC && ehdr->e_type != ET_DYN) + return false; + + /* Check the section name. Unfortunately necessary. */ + if (strcmp (section_name (ebl, idx), rela ? ".rela.dyn" : ".rel.dyn")) + return false; + + /* When a .rel.dyn section is used a DT_RELCOUNT dynamic section + entry can be present as well. */ + Elf_Scn *scn = NULL; + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + GElf_Shdr rcshdr_mem; + const GElf_Shdr *rcshdr = gelf_getshdr (scn, &rcshdr_mem); + assert (rcshdr != NULL); + + if (rcshdr->sh_type == SHT_DYNAMIC) + { + /* Found the dynamic section. Look through it. */ + Elf_Data *d = elf_getdata (scn, NULL); + size_t cnt; + + for (cnt = 1; cnt < rcshdr->sh_size / rcshdr->sh_entsize; ++cnt) + { + GElf_Dyn dyn_mem; + GElf_Dyn *dyn = gelf_getdyn (d, cnt, &dyn_mem); + assert (dyn != NULL); + + if (dyn->d_tag == DT_RELCOUNT) + { + /* Found it. One last check: does the number + specified number of relative relocations exceed + the total number of relocations? */ + if (dyn->d_un.d_val > shdr->sh_size / shdr->sh_entsize) + ERROR (gettext ("\ +section [%2d] '%s': DT_RELCOUNT value %d too high for this section\n"), + idx, section_name (ebl, idx), + (int) dyn->d_un.d_val); + } + } + + break; + } + } + + return true; +} + + +static void +check_rela (Ebl *ebl, GElf_Ehdr *ehdr, int idx) +{ + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + Elf_Data *data; + GElf_Shdr destshdr_mem; + GElf_Shdr *destshdr = NULL; + size_t cnt; + bool reldyn = false; + bool known_broken = gnuld; + + scn = elf_getscn (ebl->elf, idx); + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + return; + data = elf_getdata (scn, NULL); + if (data == NULL) + { + ERROR (gettext ("section [%2d] '%s': cannot get section data\n"), + idx, section_name (ebl, idx)); + return; + } + + /* Check whether the link to the section we relocate is reasonable. */ + if (shdr->sh_info >= shnum) + ERROR (gettext ("section [%2d] '%s': invalid destination section index\n"), + idx, section_name (ebl, idx)); + else + { + destshdr = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_info), + &destshdr_mem); + if (destshdr != NULL) + { + if(destshdr->sh_type != SHT_PROGBITS + && destshdr->sh_type != SHT_NOBITS) + { + reldyn = is_rel_dyn (ebl, ehdr, idx, shdr, true); + if (!reldyn) + ERROR (gettext ("\ +section [%2d] '%s': invalid destination section type\n"), + idx, section_name (ebl, idx)); + else + { + /* There is no standard, but we require that .rela.dyn + sections have a sh_info value of zero. */ + if (shdr->sh_info != 0) + ERROR (gettext ("\ +section [%2d] '%s': sh_info should be zero\n"), + idx, section_name (ebl, idx)); + } + } + + if ((destshdr->sh_flags & (SHF_MERGE | SHF_STRINGS)) != 0) + ERROR (gettext ("\ +section [%2d] '%s': no relocations for merge-able sections possible\n"), + idx, section_name (ebl, idx)); + } + } + + if (shdr->sh_entsize != gelf_fsize (ebl->elf, ELF_T_RELA, 1, EV_CURRENT)) + ERROR (gettext ("\ +section [%2d] '%s': section entry size does not match ElfXX_Rela\n"), + idx, section_name (ebl, idx)); + + Elf_Scn *symscn = elf_getscn (ebl->elf, shdr->sh_link); + GElf_Shdr symshdr_mem; + GElf_Shdr *symshdr = gelf_getshdr (symscn, &symshdr_mem); + Elf_Data *symdata = elf_getdata (symscn, NULL); + + for (cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) + { + GElf_Rela rela_mem; + GElf_Rela *rela; + + rela = gelf_getrela (data, cnt, &rela_mem); + if (rela == NULL) + { + ERROR (gettext ("\ +section [%2d] '%s': cannot get relocation %zu: %s\n"), + idx, section_name (ebl, idx), cnt, elf_errmsg (-1)); + continue; + } + + if (!ebl_reloc_type_check (ebl, GELF_R_TYPE (rela->r_info))) + ERROR (gettext ("section [%2d] '%s': relocation %zu: invalid type\n"), + idx, section_name (ebl, idx), cnt); + else if (!ebl_reloc_valid_use (ebl, GELF_R_TYPE (rela->r_info))) + ERROR (gettext ("\ +section [%2d] '%s': relocation %zu: relocation type invalid for the file type\n"), + idx, section_name (ebl, idx), cnt); + + if (symshdr != NULL + && ((GELF_R_SYM (rela->r_info) + 1) + * gelf_fsize (ebl->elf, ELF_T_SYM, 1, EV_CURRENT) + > symshdr->sh_size)) + ERROR (gettext ("\ +section [%2d] '%s': relocation %zu: invalid symbol index\n"), + idx, section_name (ebl, idx), cnt); + + if (ebl_gotpc_reloc_check (ebl, GELF_R_TYPE (rela->r_info))) + { + const char *name; + char buf[64]; + GElf_Sym sym_mem; + GElf_Sym *sym = gelf_getsym (symdata, GELF_R_SYM (rela->r_info), + &sym_mem); + if (sym != NULL + /* Get the name for the symbol. */ + && (name = elf_strptr (ebl->elf, symshdr->sh_link, sym->st_name)) + && strcmp (name, "_GLOBAL_OFFSET_TABLE_") !=0 ) + ERROR (gettext ("\ +section [%2d] '%s': relocation %zu: only symbol '_GLOBAL_OFFSET_TABLE_' can be used with %s\n"), + idx, section_name (ebl, idx), cnt, + ebl_reloc_type_name (ebl, GELF_R_SYM (rela->r_info), + buf, sizeof (buf))); + } + + if (reldyn) + { + // XXX TODO Check .rel.dyn section addresses. + } + else if (!known_broken) + { + if (destshdr != NULL + && (rela->r_offset - destshdr->sh_addr) >= destshdr->sh_size) + ERROR (gettext ("\ +section [%2d] '%s': relocation %zu: offset out of bounds\n"), + idx, section_name (ebl, idx), cnt); + } + + if (symdata != NULL + && ebl_copy_reloc_p (ebl, GELF_R_TYPE (rela->r_info))) + { + /* Make sure the referenced symbol is an object or unspecified. */ + GElf_Sym sym_mem; + GElf_Sym *sym = gelf_getsym (symdata, GELF_R_SYM (rela->r_info), + &sym_mem); + if (sym != NULL + && GELF_ST_TYPE (sym->st_info) != STT_NOTYPE + && GELF_ST_TYPE (sym->st_info) != STT_OBJECT) + { + char buf[64]; + ERROR (gettext ("section [%2d] '%s': relocation %zu: copy relocation against symbol of type %s\n"), + idx, section_name (ebl, idx), cnt, + ebl_symbol_type_name (ebl, GELF_ST_TYPE (sym->st_info), + buf, sizeof (buf))); + } + } + } +} + + +static void +check_rel (Ebl *ebl, GElf_Ehdr *ehdr, int idx) +{ + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + Elf_Data *data; + GElf_Shdr destshdr_mem; + GElf_Shdr *destshdr = NULL; + size_t cnt; + bool reldyn = false; + bool known_broken = gnuld; + + scn = elf_getscn (ebl->elf, idx); + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + return; + data = elf_getdata (scn, NULL); + if (data == NULL) + { + ERROR (gettext ("section [%2d] '%s': cannot get section data\n"), + idx, section_name (ebl, idx)); + return; + } + + /* Check whether the link to the section we relocate is reasonable. */ + if (shdr->sh_info >= shnum) + ERROR (gettext ("section [%2d] '%s': invalid destination section index\n"), + idx, section_name (ebl, idx)); + else + { + destshdr = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_info), + &destshdr_mem); + if (destshdr != NULL) + { + if (destshdr->sh_type != SHT_PROGBITS + && destshdr->sh_type != SHT_NOBITS) + { + reldyn = is_rel_dyn (ebl, ehdr, idx, shdr, false); + if (!reldyn) + ERROR (gettext ("\ +section [%2d] '%s': invalid destination section type\n"), + idx, section_name (ebl, idx)); + else + { + /* There is no standard, but we require that .rela.dyn + sections have a sh_info value of zero. */ + if (shdr->sh_info != 0) + ERROR (gettext ("\ +section [%2d] '%s': sh_info should be zero\n"), + idx, section_name (ebl, idx)); + } + } + + if ((destshdr->sh_flags & (SHF_MERGE | SHF_STRINGS)) != 0) + ERROR (gettext ("\ +section [%2d] '%s': no relocations for merge-able sections possible\n"), + idx, section_name (ebl, idx)); + } + } + + if (shdr->sh_entsize != gelf_fsize (ebl->elf, ELF_T_REL, 1, EV_CURRENT)) + ERROR (gettext ("\ +section [%2d] '%s': section entry size does not match ElfXX_Rel\n"), + idx, section_name (ebl, idx)); + + Elf_Scn *symscn = elf_getscn (ebl->elf, shdr->sh_link); + GElf_Shdr symshdr_mem; + GElf_Shdr *symshdr = gelf_getshdr (symscn, &symshdr_mem); + Elf_Data *symdata = elf_getdata (symscn, NULL); + + for (cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) + { + GElf_Rel rel_mem; + GElf_Rel *rel; + + rel = gelf_getrel (data, cnt, &rel_mem); + if (rel == NULL) + { + ERROR (gettext ("\ +section [%2d] '%s': cannot get relocation %zu: %s\n"), + idx, section_name (ebl, idx), cnt, elf_errmsg (-1)); + continue; + } + + if (!ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info))) + ERROR (gettext ("section [%2d] '%s': relocation %zu: invalid type\n"), + idx, section_name (ebl, idx), cnt); + else if (!ebl_reloc_valid_use (ebl, GELF_R_TYPE (rel->r_info))) + ERROR (gettext ("\ +section [%2d] '%s': relocation %zu: relocation type invalid for the file type\n"), + idx, section_name (ebl, idx), cnt); + + if (symshdr != NULL + && ((GELF_R_SYM (rel->r_info) + 1) + * gelf_fsize (ebl->elf, ELF_T_SYM, 1, EV_CURRENT) + > symshdr->sh_size)) + ERROR (gettext ("\ +section [%2d] '%s': relocation %zu: invalid symbol index\n"), + idx, section_name (ebl, idx), cnt); + + if (ebl_gotpc_reloc_check (ebl, GELF_R_TYPE (rel->r_info))) + { + const char *name; + char buf[64]; + GElf_Sym sym_mem; + GElf_Sym *sym = gelf_getsym (symdata, GELF_R_SYM (rel->r_info), + &sym_mem); + if (sym != NULL + /* Get the name for the symbol. */ + && (name = elf_strptr (ebl->elf, symshdr->sh_link, sym->st_name)) + && strcmp (name, "_GLOBAL_OFFSET_TABLE_") !=0 ) + ERROR (gettext ("\ +section [%2d] '%s': relocation %zu: only symbol '_GLOBAL_OFFSET_TABLE_' can be used with %s\n"), + idx, section_name (ebl, idx), cnt, + ebl_reloc_type_name (ebl, GELF_R_SYM (rel->r_info), + buf, sizeof (buf))); + } + + if (reldyn) + { + // XXX TODO Check .rel.dyn section addresses. + } + else if (!known_broken) + { + if (destshdr != NULL + && GELF_R_TYPE (rel->r_info) != 0 + && (rel->r_offset - destshdr->sh_addr) >= destshdr->sh_size) + ERROR (gettext ("\ +section [%2d] '%s': relocation %zu: offset out of bounds\n"), + idx, section_name (ebl, idx), cnt); + } + + if (symdata != NULL + && ebl_copy_reloc_p (ebl, GELF_R_TYPE (rel->r_info))) + { + /* Make sure the referenced symbol is an object or unspecified. */ + GElf_Sym sym_mem; + GElf_Sym *sym = gelf_getsym (symdata, GELF_R_SYM (rel->r_info), + &sym_mem); + if (sym != NULL + && GELF_ST_TYPE (sym->st_info) != STT_NOTYPE + && GELF_ST_TYPE (sym->st_info) != STT_OBJECT) + { + char buf[64]; + ERROR (gettext ("section [%2d] '%s': relocation %zu: copy relocation against symbol of type %s\n"), + idx, section_name (ebl, idx), cnt, + ebl_symbol_type_name (ebl, GELF_ST_TYPE (sym->st_info), + buf, sizeof (buf))); + } + } + } +} + + +/* Number of dynamic sections. */ +static int ndynamic; + + +static void +check_dynamic (Ebl *ebl, int idx) +{ + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + Elf_Data *data; + GElf_Shdr strshdr_mem; + GElf_Shdr *strshdr; + size_t cnt; + static const bool dependencies[DT_NUM][DT_NUM] = + { + [DT_NEEDED] = { [DT_STRTAB] = true }, + [DT_PLTRELSZ] = { [DT_JMPREL] = true }, + [DT_HASH] = { [DT_SYMTAB] = true }, + [DT_STRTAB] = { [DT_STRSZ] = true }, + [DT_SYMTAB] = { [DT_STRTAB] = true, [DT_HASH] = true, + [DT_SYMENT] = true }, + [DT_RELA] = { [DT_RELASZ] = true, [DT_RELAENT] = true }, + [DT_RELASZ] = { [DT_RELA] = true }, + [DT_RELAENT] = { [DT_RELA] = true }, + [DT_STRSZ] = { [DT_STRTAB] = true }, + [DT_SYMENT] = { [DT_SYMTAB] = true }, + [DT_SONAME] = { [DT_STRTAB] = true }, + [DT_RPATH] = { [DT_STRTAB] = true }, + [DT_REL] = { [DT_RELSZ] = true, [DT_RELENT] = true }, + [DT_RELSZ] = { [DT_REL] = true }, + [DT_RELENT] = { [DT_REL] = true }, + [DT_JMPREL] = { [DT_PLTRELSZ] = true, [DT_PLTREL] = true }, + [DT_RUNPATH] = { [DT_STRTAB] = true }, + [DT_PLTREL] = { [DT_JMPREL] = true }, + [DT_PLTRELSZ] = { [DT_JMPREL] = true } + }; + bool has_dt[DT_NUM]; + static const bool level2[DT_NUM] = + { + [DT_RPATH] = true, + [DT_SYMBOLIC] = true, + [DT_TEXTREL] = true, + [DT_BIND_NOW] = true + }; + static const bool mandatory[DT_NUM] = + { + [DT_NULL] = true, + [DT_HASH] = true, + [DT_STRTAB] = true, + [DT_SYMTAB] = true, + [DT_STRSZ] = true, + [DT_SYMENT] = true + }; + GElf_Addr reladdr = 0; + GElf_Word relsz = 0; + GElf_Addr pltreladdr = 0; + GElf_Word pltrelsz = 0; + + memset (has_dt, '\0', sizeof (has_dt)); + + if (++ndynamic == 2) + ERROR (gettext ("more than one dynamic section present\n")); + + scn = elf_getscn (ebl->elf, idx); + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + return; + data = elf_getdata (scn, NULL); + if (data == NULL) + { + ERROR (gettext ("section [%2d] '%s': cannot get section data\n"), + idx, section_name (ebl, idx)); + return; + } + + strshdr = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), &strshdr_mem); + if (strshdr != NULL && strshdr->sh_type != SHT_STRTAB) + ERROR (gettext ("\ +section [%2d] '%s': referenced as string table for section [%2d] '%s' but type is not SHT_STRTAB\n"), + shdr->sh_link, section_name (ebl, shdr->sh_link), + idx, section_name (ebl, idx)); + + if (shdr->sh_entsize != gelf_fsize (ebl->elf, ELF_T_DYN, 1, EV_CURRENT)) + ERROR (gettext ("\ +section [%2d] '%s': section entry size does not match ElfXX_Dyn\n"), + idx, section_name (ebl, idx)); + + if (shdr->sh_info != 0) + ERROR (gettext ("section [%2d] '%s': sh_info not zero\n"), + idx, section_name (ebl, idx)); + + bool non_null_warned = false; + for (cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) + { + GElf_Dyn dyn_mem; + GElf_Dyn *dyn; + + dyn = gelf_getdyn (data, cnt, &dyn_mem); + if (dyn == NULL) + { + ERROR (gettext ("\ +section [%2d] '%s': cannot get dynamic section entry %zu: %s\n"), + idx, section_name (ebl, idx), cnt, elf_errmsg (-1)); + continue; + } + + if (has_dt[DT_NULL] && dyn->d_tag != DT_NULL && ! non_null_warned) + { + ERROR (gettext ("\ +section [%2d] '%s': non-DT_NULL entries follow DT_NULL entry\n"), + idx, section_name (ebl, idx)); + non_null_warned = true; + } + + if (!ebl_dynamic_tag_check (ebl, dyn->d_tag)) + ERROR (gettext ("section [%2d] '%s': entry %zu: unknown tag\n"), + idx, section_name (ebl, idx), cnt); + + if (dyn->d_tag >= 0 && dyn->d_tag < DT_NUM) + { + if (has_dt[dyn->d_tag] + && dyn->d_tag != DT_NEEDED + && dyn->d_tag != DT_NULL + && dyn->d_tag != DT_POSFLAG_1) + { + char buf[50]; + ERROR (gettext ("\ +section [%2d] '%s': entry %zu: more than one entry with tag %s\n"), + idx, section_name (ebl, idx), cnt, + ebl_dynamic_tag_name (ebl, dyn->d_tag, + buf, sizeof (buf))); + } + + if (be_strict && level2[dyn->d_tag]) + { + char buf[50]; + ERROR (gettext ("\ +section [%2d] '%s': entry %zu: level 2 tag %s used\n"), + idx, section_name (ebl, idx), cnt, + ebl_dynamic_tag_name (ebl, dyn->d_tag, + buf, sizeof (buf))); + } + + has_dt[dyn->d_tag] = true; + } + + if (dyn->d_tag == DT_PLTREL && dyn->d_un.d_val != DT_REL + && dyn->d_un.d_val != DT_RELA) + ERROR (gettext ("\ +section [%2d] '%s': entry %zu: DT_PLTREL value must be DT_REL or DT_RELA\n"), + idx, section_name (ebl, idx), cnt); + + if (dyn->d_tag == DT_REL) + reladdr = dyn->d_un.d_ptr; + if (dyn->d_tag == DT_RELSZ) + relsz = dyn->d_un.d_val; + if (dyn->d_tag == DT_JMPREL) + pltreladdr = dyn->d_un.d_ptr; + if (dyn->d_tag == DT_PLTRELSZ) + pltrelsz = dyn->d_un.d_val; + } + + for (cnt = 1; cnt < DT_NUM; ++cnt) + if (has_dt[cnt]) + { + int inner; + + for (inner = 0; inner < DT_NUM; ++inner) + if (dependencies[cnt][inner] && ! has_dt[inner]) + { + char buf1[50]; + char buf2[50]; + + ERROR (gettext ("\ +section [%2d] '%s': contains %s entry but not %s\n"), + idx, section_name (ebl, idx), + ebl_dynamic_tag_name (ebl, cnt, buf1, sizeof (buf1)), + ebl_dynamic_tag_name (ebl, inner, buf2, sizeof (buf2))); + } + } + else + { + if (mandatory[cnt]) + { + char buf[50]; + ERROR (gettext ("\ +section [%2d] '%s': mandatory tag %s not present\n"), + idx, section_name (ebl, idx), + ebl_dynamic_tag_name (ebl, cnt, buf, sizeof (buf))); + } + } + + /* Check the rel/rela tags. At least one group must be available. */ + if ((has_dt[DT_RELA] || has_dt[DT_RELASZ] || has_dt[DT_RELAENT]) + && (!has_dt[DT_RELA] || !has_dt[DT_RELASZ] || !has_dt[DT_RELAENT])) + ERROR (gettext ("\ +section [%2d] '%s': not all of %s, %s, and %s are present\n"), + idx, section_name (ebl, idx), + "DT_RELA", "DT_RELASZ", "DT_RELAENT"); + + if ((has_dt[DT_REL] || has_dt[DT_RELSZ] || has_dt[DT_RELENT]) + && (!has_dt[DT_REL] || !has_dt[DT_RELSZ] || !has_dt[DT_RELENT])) + ERROR (gettext ("\ +section [%2d] '%s': not all of %s, %s, and %s are present\n"), + idx, section_name (ebl, idx), + "DT_REL", "DT_RELSZ", "DT_RELENT"); +} + + +static void +check_symtab_shndx (Ebl *ebl, int idx) +{ + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + GElf_Shdr symshdr_mem; + GElf_Shdr *symshdr; + Elf_Scn *symscn; + size_t cnt; + Elf_Data *data; + Elf_Data *symdata; + + scn = elf_getscn (ebl->elf, idx); + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + return; + + symscn = elf_getscn (ebl->elf, shdr->sh_link); + symshdr = gelf_getshdr (symscn, &symshdr_mem); + if (symshdr != NULL && symshdr->sh_type != SHT_SYMTAB) + ERROR (gettext ("\ +section [%2d] '%s': extended section index section not for symbol table\n"), + idx, section_name (ebl, idx)); + symdata = elf_getdata (symscn, NULL); + if (symdata == NULL) + ERROR (gettext ("cannot get data for symbol section\n")); + + if (shdr->sh_entsize != sizeof (Elf32_Word)) + ERROR (gettext ("\ +section [%2d] '%s': entry size does not match Elf32_Word\n"), + idx, section_name (ebl, idx)); + + if (symshdr != NULL + && (shdr->sh_size / shdr->sh_entsize + < symshdr->sh_size / symshdr->sh_entsize)) + ERROR (gettext ("\ +section [%2d] '%s': extended index table too small for symbol table\n"), + idx, section_name (ebl, idx)); + + if (shdr->sh_info != 0) + ERROR (gettext ("section [%2d] '%s': sh_info not zero\n"), + idx, section_name (ebl, idx)); + + for (cnt = idx + 1; cnt < shnum; ++cnt) + { + GElf_Shdr rshdr_mem; + GElf_Shdr *rshdr; + + rshdr = gelf_getshdr (elf_getscn (ebl->elf, cnt), &rshdr_mem); + if (rshdr != NULL && rshdr->sh_type == SHT_SYMTAB_SHNDX + && rshdr->sh_link == shdr->sh_link) + { + ERROR (gettext ("\ +section [%2d] '%s': extended section index in section [%2zu] '%s' refers to same symbol table\n"), + idx, section_name (ebl, idx), + cnt, section_name (ebl, cnt)); + break; + } + } + + data = elf_getdata (scn, NULL); + + if (*((Elf32_Word *) data->d_buf) != 0) + ERROR (gettext ("symbol 0 should have zero extended section index\n")); + + for (cnt = 1; cnt < data->d_size / sizeof (Elf32_Word); ++cnt) + { + Elf32_Word xndx = ((Elf32_Word *) data->d_buf)[cnt]; + + if (xndx != 0) + { + GElf_Sym sym_data; + GElf_Sym *sym = gelf_getsym (symdata, cnt, &sym_data); + if (sym == NULL) + { + ERROR (gettext ("cannot get data for symbol %zu\n"), cnt); + continue; + } + + if (sym->st_shndx != SHN_XINDEX) + ERROR (gettext ("\ +extended section index is %" PRIu32 " but symbol index is not XINDEX\n"), + (uint32_t) xndx); + } + } +} + + +static void +check_hash (Ebl *ebl, int idx) +{ + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + Elf_Data *data; + Elf32_Word nbucket; + Elf32_Word nchain; + GElf_Shdr symshdr_mem; + GElf_Shdr *symshdr; + + scn = elf_getscn (ebl->elf, idx); + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + return; + data = elf_getdata (scn, NULL); + if (data == NULL) + { + ERROR (gettext ("section [%2d] '%s': cannot get section data\n"), + idx, section_name (ebl, idx)); + return; + } + + symshdr = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), &symshdr_mem); + if (symshdr != NULL && symshdr->sh_type != SHT_DYNSYM) + ERROR (gettext ("\ +section [%2d] '%s': hash table not for dynamic symbol table\n"), + idx, section_name (ebl, idx)); + + if (shdr->sh_entsize != sizeof (Elf32_Word)) + ERROR (gettext ("\ +section [%2d] '%s': entry size does not match Elf32_Word\n"), + idx, section_name (ebl, idx)); + + if ((shdr->sh_flags & SHF_ALLOC) == 0) + ERROR (gettext ("section [%2d] '%s': not marked to be allocated\n"), + idx, section_name (ebl, idx)); + + if (shdr->sh_size < 2 * shdr->sh_entsize) + { + ERROR (gettext ("\ +section [%2d] '%s': hash table has not even room for nbucket and nchain\n"), + idx, section_name (ebl, idx)); + return; + } + + nbucket = ((Elf32_Word *) data->d_buf)[0]; + nchain = ((Elf32_Word *) data->d_buf)[1]; + + if (shdr->sh_size < (2 + nbucket + nchain) * shdr->sh_entsize) + ERROR (gettext ("\ +section [%2d] '%s': hash table section is too small (is %ld, expected %ld)\n"), + idx, section_name (ebl, idx), (long int) shdr->sh_size, + (long int) ((2 + nbucket + nchain) * shdr->sh_entsize)); + + if (symshdr != NULL) + { + size_t symsize = symshdr->sh_size / symshdr->sh_entsize; + size_t cnt; + + if (nchain < symshdr->sh_size / symshdr->sh_entsize) + ERROR (gettext ("section [%2d] '%s': chain array not large enough\n"), + idx, section_name (ebl, idx)); + + for (cnt = 2; cnt < 2 + nbucket; ++cnt) + if (((Elf32_Word *) data->d_buf)[cnt] >= symsize) + ERROR (gettext ("\ +section [%2d] '%s': hash bucket reference %zu out of bounds\n"), + idx, section_name (ebl, idx), cnt - 2); + + for (; cnt < 2 + nbucket + nchain; ++cnt) + if (((Elf32_Word *) data->d_buf)[cnt] >= symsize) + ERROR (gettext ("\ +section [%2d] '%s': hash chain reference %zu out of bounds\n"), + idx, section_name (ebl, idx), cnt - 2 - nbucket); + } +} + + +static void +check_null (Ebl *ebl, GElf_Shdr *shdr, int idx) +{ +#define TEST(name, extra) \ + if (extra && shdr->sh_##name != 0) \ + ERROR (gettext ("section [%2d] '%s': nonzero sh_%s for NULL section\n"), \ + idx, section_name (ebl, idx), #name) + + TEST (name, 1); + TEST (flags, 1); + TEST (addr, 1); + TEST (offset, 1); + TEST (size, idx != 0); + TEST (link, idx != 0); + TEST (info, 1); + TEST (addralign, 1); + TEST (entsize, 1); +} + + +static void +check_group (Ebl *ebl, GElf_Ehdr *ehdr, GElf_Shdr *shdr, int idx) +{ + if (ehdr->e_type != ET_REL) + { + ERROR (gettext ("\ +section [%2d] '%s': section groups only allowed in relocatable object files\n"), + idx, section_name (ebl, idx)); + return; + } + + /* Check that sh_link is an index of a symbol table. */ + GElf_Shdr symshdr_mem; + GElf_Shdr *symshdr = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), + &symshdr_mem); + if (symshdr == NULL) + ERROR (gettext ("section [%2d] '%s': cannot get symbol table: %s\n"), + idx, section_name (ebl, idx), elf_errmsg (-1)); + else + { + if (symshdr->sh_type != SHT_SYMTAB) + ERROR (gettext ("\ +section [%2d] '%s': section reference in sh_link is no symbol table\n"), + idx, section_name (ebl, idx)); + + if (shdr->sh_info >= symshdr->sh_size / gelf_fsize (ebl->elf, ELF_T_SYM, + 1, EV_CURRENT)) + ERROR (gettext ("\ +section [%2d] '%s': invalid symbol index in sh_info\n"), + idx, section_name (ebl, idx)); + + if (shdr->sh_flags != 0) + ERROR (gettext ("section [%2d] '%s': sh_flags not zero\n"), + idx, section_name (ebl, idx)); + + if (be_strict + && shdr->sh_entsize != elf32_fsize (ELF_T_WORD, 1, EV_CURRENT)) + ERROR (gettext ("section [%2d] '%s': sh_flags not set correctly\n"), + idx, section_name (ebl, idx)); + } + + Elf_Data *data = elf_getdata (elf_getscn (ebl->elf, idx), NULL); + if (data == NULL) + ERROR (gettext ("section [%2d] '%s': cannot get data: %s\n"), + idx, section_name (ebl, idx), elf_errmsg (-1)); + else + { + size_t elsize = elf32_fsize (ELF_T_WORD, 1, EV_CURRENT); + size_t cnt; + Elf32_Word val; + + if (data->d_size % elsize != 0) + ERROR (gettext ("\ +section [%2d] '%s': section size not multiple of sizeof(Elf32_Word)\n"), + idx, section_name (ebl, idx)); + + if (data->d_size < elsize) + ERROR (gettext ("\ +section [%2d] '%s': section group without flags word\n"), + idx, section_name (ebl, idx)); + else if (be_strict) + { + if (data->d_size < 2 * elsize) + ERROR (gettext ("\ +section [%2d] '%s': section group without member\n"), + idx, section_name (ebl, idx)); + else if (data->d_size < 3 * elsize) + ERROR (gettext ("\ +section [%2d] '%s': section group with only one member\n"), + idx, section_name (ebl, idx)); + } + +#if ALLOW_UNALIGNED + val = *((Elf32_Word *) data->d_buf); +#else + memcpy (&val, data->d_buf, elsize); +#endif + if ((val & ~GRP_COMDAT) != 0) + ERROR (gettext ("section [%2d] '%s': unknown section group flags\n"), + idx, section_name (ebl, idx)); + + for (cnt = elsize; cnt < data->d_size; cnt += elsize) + { +#if ALLOW_UNALIGNED + val = *((Elf32_Word *) ((char *) data->d_buf + cnt)); +#else + memcpy (&val, (char *) data->d_buf + cnt, elsize); +#endif + + if (val > shnum) + ERROR (gettext ("\ +section [%2d] '%s': section index %Zu out of range\n"), + idx, section_name (ebl, idx), cnt / elsize); + else + { + GElf_Shdr refshdr_mem; + GElf_Shdr *refshdr; + + refshdr = gelf_getshdr (elf_getscn (ebl->elf, val), + &refshdr_mem); + if (refshdr == NULL) + ERROR (gettext ("\ +section [%2d] '%s': cannot get section header for element %zu: %s\n"), + idx, section_name (ebl, idx), cnt / elsize, + elf_errmsg (-1)); + else + { + if (refshdr->sh_type == SHT_GROUP) + ERROR (gettext ("\ +section [%2d] '%s': section group contains another group [%2d] '%s'\n"), + idx, section_name (ebl, idx), + val, section_name (ebl, val)); + + if ((refshdr->sh_flags & SHF_GROUP) == 0) + ERROR (gettext ("\ +section [%2d] '%s': element %Zu references section [%2d] '%s' without SHF_GROUP flag set\n"), + idx, section_name (ebl, idx), cnt / elsize, + val, section_name (ebl, val)); + } + + if (++scnref[val] == 2) + ERROR (gettext ("\ +section [%2d] '%s' is contained in more than one section group\n"), + val, section_name (ebl, val)); + } + } + } +} + + +static bool has_loadable_segment; +static bool has_interp_segment; + +static const struct +{ + const char *name; + size_t namelen; + GElf_Word type; + enum { unused, exact, atleast } attrflag; + GElf_Word attr; + GElf_Word attr2; +} special_sections[] = + { + /* See figure 4-14 in the gABI. */ + { ".bss", 5, SHT_NOBITS, exact, SHF_ALLOC | SHF_WRITE, 0 }, + { ".comment", 8, SHT_PROGBITS, exact, 0, 0 }, + { ".data", 6, SHT_PROGBITS, exact, SHF_ALLOC | SHF_WRITE, 0 }, + { ".data1", 7, SHT_PROGBITS, exact, SHF_ALLOC | SHF_WRITE, 0 }, + { ".debug", 7, SHT_PROGBITS, exact, 0, 0 }, + { ".dynamic", 9, SHT_DYNAMIC, atleast, SHF_ALLOC, SHF_WRITE }, + { ".dynstr", 8, SHT_STRTAB, exact, SHF_ALLOC, 0 }, + { ".dynsym", 8, SHT_DYNSYM, exact, SHF_ALLOC, 0 }, + { ".fini", 6, SHT_PROGBITS, exact, SHF_ALLOC | SHF_EXECINSTR, 0 }, + { ".fini_array", 12, SHT_FINI_ARRAY, exact, SHF_ALLOC | SHF_WRITE, 0 }, + { ".got", 5, SHT_PROGBITS, unused, 0, 0 }, // XXX more info? + { ".hash", 6, SHT_HASH, exact, SHF_ALLOC, 0 }, + { ".init", 6, SHT_PROGBITS, exact, SHF_ALLOC | SHF_EXECINSTR, 0 }, + { ".init_array", 12, SHT_INIT_ARRAY, exact, SHF_ALLOC | SHF_WRITE, 0 }, + { ".interp", 8, SHT_PROGBITS, atleast, 0, SHF_ALLOC }, // XXX more tests? + { ".line", 6, SHT_PROGBITS, exact, 0, 0 }, + { ".note", 6, SHT_NOTE, exact, 0, 0 }, + { ".plt", 5, SHT_PROGBITS, unused, 0, 0 }, // XXX more tests + { ".preinit_array", 15, SHT_PREINIT_ARRAY, exact, SHF_ALLOC | SHF_WRITE, 0 }, + { ".rela", 5, SHT_RELA, atleast, 0, SHF_ALLOC }, // XXX more tests + { ".rel", 4, SHT_REL, atleast, 0, SHF_ALLOC }, // XXX more tests + { ".rodata", 8, SHT_PROGBITS, exact, SHF_ALLOC, 0 }, + { ".rodata1", 9, SHT_PROGBITS, exact, SHF_ALLOC, 0 }, + { ".shstrtab", 10, SHT_STRTAB, exact, 0, 0 }, + { ".strtab", 8, SHT_STRTAB, atleast, 0, SHF_ALLOC }, // XXX more tests + { ".symtab", 8, SHT_SYMTAB, atleast, 0, SHF_ALLOC }, // XXX more tests + { ".symtab_shndx", 14, SHT_SYMTAB_SHNDX, atleast, 0, SHF_ALLOC }, // XXX more tests + { ".tbss", 6, SHT_NOBITS, exact, SHF_ALLOC | SHF_WRITE | SHF_TLS, 0 }, + { ".tdata", 7, SHT_PROGBITS, exact, SHF_ALLOC | SHF_WRITE | SHF_TLS, 0 }, + { ".tdata1", 8, SHT_PROGBITS, exact, SHF_ALLOC | SHF_WRITE | SHF_TLS, 0 }, + { ".text", 6, SHT_PROGBITS, exact, SHF_ALLOC | SHF_EXECINSTR, 0 } + }; +#define nspecial_sections \ + (sizeof (special_sections) / sizeof (special_sections[0])) + + +static const char * +section_flags_string (GElf_Word flags, char *buf, size_t len) +{ + static const struct + { + GElf_Word flag; + const char *name; + } known_flags[] = + { +#define NEWFLAG(name) { SHF_##name, #name } + NEWFLAG (WRITE), + NEWFLAG (ALLOC), + NEWFLAG (EXECINSTR), + NEWFLAG (MERGE), + NEWFLAG (STRINGS), + NEWFLAG (INFO_LINK), + NEWFLAG (LINK_ORDER), + NEWFLAG (OS_NONCONFORMING), + NEWFLAG (GROUP), + NEWFLAG (TLS) + }; +#undef NEWFLAG + const size_t nknown_flags = sizeof (known_flags) / sizeof (known_flags[0]); + + char *cp = buf; + size_t cnt; + + for (cnt = 0; cnt < nknown_flags; ++cnt) + if (flags & known_flags[cnt].flag) + { + if (cp != buf && len > 1) + { + *cp++ = '|'; + --len; + } + + size_t ncopy = MIN (len - 1, strlen (known_flags[cnt].name)); + cp = mempcpy (cp, known_flags[cnt].name, ncopy); + len -= ncopy; + + flags ^= known_flags[cnt].flag; + } + + if (flags != 0 || cp == buf) + snprintf (cp, len - 1, "%" PRIx64, (uint64_t) flags); + + *cp = '\0'; + + return buf; +} + + +static void +check_versym (Ebl *ebl, GElf_Shdr *shdr, int idx) +{ + /* The number of elements in the version symbol table must be the + same as the number of symbols. */ + GElf_Shdr symshdr_mem; + GElf_Shdr *symshdr = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), + &symshdr_mem); + if (symshdr == NULL) + /* The error has already been reported. */ + return; + + if (symshdr->sh_type != SHT_DYNSYM) + { + ERROR (gettext ("\ +section [%2d] '%s' refers in sh_link to section [%2d] '%s' which is no dynamic symbol table\n"), + idx, section_name (ebl, idx), + shdr->sh_link, section_name (ebl, shdr->sh_link)); + return; + } + + if (shdr->sh_size / shdr->sh_entsize + != symshdr->sh_size / symshdr->sh_entsize) + ERROR (gettext ("\ +section [%2d] '%s' has different number of entries than symbol table [%2d] '%s'\n"), + idx, section_name (ebl, idx), + shdr->sh_link, section_name (ebl, shdr->sh_link)); + + // XXX TODO A lot more tests + // check value of the fields. local symbols must have zero entries. + // nonlocal symbols refer to valid version. Check that version index + // in bound. +} + + +static void +check_sections (Ebl *ebl, GElf_Ehdr *ehdr) +{ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + size_t cnt; + bool dot_interp_section = false; + + if (ehdr->e_shoff == 0) + /* No section header. */ + return; + + /* Allocate array to count references in section groups. */ + scnref = (int *) xcalloc (shnum, sizeof (int)); + + /* Check the zeroth section first. It must not have any contents + and the section header must contain nonzero value at most in the + sh_size and sh_link fields. */ + shdr = gelf_getshdr (elf_getscn (ebl->elf, 0), &shdr_mem); + if (shdr == NULL) + ERROR (gettext ("cannot get section header of zeroth section\n")); + else + { + if (shdr->sh_name != 0) + ERROR (gettext ("zeroth section has nonzero name\n")); + if (shdr->sh_type != 0) + ERROR (gettext ("zeroth section has nonzero type\n")); + if (shdr->sh_flags != 0) + ERROR (gettext ("zeroth section has nonzero flags\n")); + if (shdr->sh_addr != 0) + ERROR (gettext ("zeroth section has nonzero address\n")); + if (shdr->sh_offset != 0) + ERROR (gettext ("zeroth section has nonzero offset\n")); + if (shdr->sh_info != 0) + ERROR (gettext ("zeroth section has nonzero info field\n")); + if (shdr->sh_addralign != 0) + ERROR (gettext ("zeroth section has nonzero align value\n")); + if (shdr->sh_entsize != 0) + ERROR (gettext ("zeroth section has nonzero entry size value\n")); + + if (shdr->sh_size != 0 && ehdr->e_shnum != 0) + ERROR (gettext ("\ +zeroth section has nonzero size value while ELF header has nonzero shnum value\n")); + + if (shdr->sh_link != 0 && ehdr->e_shstrndx != SHN_XINDEX) + ERROR (gettext ("\ +zeroth section has nonzero link value while ELF header does not signal overflow in shstrndx\n")); + } + + for (cnt = 1; cnt < shnum; ++cnt) + { + Elf_Scn *scn; + + scn = elf_getscn (ebl->elf, cnt); + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + { + ERROR (gettext ("\ +cannot get section header for section [%2zu] '%s': %s\n"), + cnt, section_name (ebl, cnt), elf_errmsg (-1)); + continue; + } + + const char *scnname = elf_strptr (ebl->elf, shstrndx, shdr->sh_name); + + if (scnname == NULL) + ERROR (gettext ("section [%2zu]: invalid name\n"), cnt); + else + { + /* Check whether it is one of the special sections defined in + the gABI. */ + size_t s; + for (s = 0; s < nspecial_sections; ++s) + if (strncmp (scnname, special_sections[s].name, + special_sections[s].namelen) == 0) + { + char stbuf1[100]; + char stbuf2[100]; + char stbuf3[100]; + + if (shdr->sh_type != special_sections[s].type + && !(is_debuginfo && shdr->sh_type == SHT_NOBITS)) + ERROR (gettext ("\ +section [%2d] '%s' has wrong type: expected %s, is %s\n"), + (int) cnt, scnname, + ebl_section_type_name (ebl, special_sections[s].type, + stbuf1, sizeof (stbuf1)), + ebl_section_type_name (ebl, shdr->sh_type, + stbuf2, sizeof (stbuf2))); + + if (special_sections[s].attrflag == exact) + { + /* Except for the link order and group bit all the + other bits should match exactly. */ + if ((shdr->sh_flags & ~(SHF_LINK_ORDER | SHF_GROUP)) + != special_sections[s].attr) + ERROR (gettext ("\ +section [%2zu] '%s' has wrong flags: expected %s, is %s\n"), + cnt, scnname, + section_flags_string (special_sections[s].attr, + stbuf1, sizeof (stbuf1)), + section_flags_string (shdr->sh_flags + & ~SHF_LINK_ORDER, + stbuf2, sizeof (stbuf2))); + } + else if (special_sections[s].attrflag == atleast) + { + if ((shdr->sh_flags & special_sections[s].attr) + != special_sections[s].attr + || ((shdr->sh_flags & ~(SHF_LINK_ORDER | SHF_GROUP + | special_sections[s].attr + | special_sections[s].attr2)) + != 0)) + ERROR (gettext ("\ +section [%2zu] '%s' has wrong flags: expected %s and possibly %s, is %s\n"), + cnt, scnname, + section_flags_string (special_sections[s].attr, + stbuf1, sizeof (stbuf1)), + section_flags_string (special_sections[s].attr2, + stbuf2, sizeof (stbuf2)), + section_flags_string (shdr->sh_flags + & ~(SHF_LINK_ORDER + | SHF_GROUP), + stbuf3, sizeof (stbuf3))); + } + + if (strcmp (scnname, ".interp") == 0) + { + dot_interp_section = true; + + if (ehdr->e_type == ET_REL) + ERROR (gettext ("\ +section [%2zu] '%s' present in object file\n"), + cnt, scnname); + + if ((shdr->sh_flags & SHF_ALLOC) != 0 + && !has_loadable_segment) + ERROR (gettext ("\ +section [%2zu] '%s' has SHF_ALLOC flag set but there is no loadable segment\n"), + cnt, scnname); + else if ((shdr->sh_flags & SHF_ALLOC) == 0 + && has_loadable_segment) + ERROR (gettext ("\ +section [%2zu] '%s' has SHF_ALLOC flag not set but there are loadable segments\n"), + cnt, scnname); + } + else + { + if (strcmp (scnname, ".symtab_shndx") == 0 + && ehdr->e_type != ET_REL) + ERROR (gettext ("\ +section [%2zu] '%s' is extension section index table in non-object file\n"), + cnt, scnname); + + /* These sections must have the SHF_ALLOC flag set iff + a loadable segment is available. + + .relxxx + .strtab + .symtab + .symtab_shndx + + Check that if there is a reference from the + loaded section these sections also have the + ALLOC flag set. */ +#if 0 + // XXX TODO + if ((shdr->sh_flags & SHF_ALLOC) != 0 + && !has_loadable_segment) + ERROR (gettext ("\ +section [%2zu] '%s' has SHF_ALLOC flag set but there is no loadable segment\n"), + cnt, scnname); + else if ((shdr->sh_flags & SHF_ALLOC) == 0 + && has_loadable_segment) + ERROR (gettext ("\ +section [%2zu] '%s' has SHF_ALLOC flag not set but there are loadable segments\n"), + cnt, scnname); +#endif + } + + break; + } + } + + if (shdr->sh_entsize != 0 && shdr->sh_size % shdr->sh_entsize) + ERROR (gettext ("\ +section [%2zu] '%s': size not multiple of entry size\n"), + cnt, section_name (ebl, cnt)); + + if (elf_strptr (ebl->elf, shstrndx, shdr->sh_name) == NULL) + ERROR (gettext ("cannot get section header\n")); + + if (shdr->sh_type >= SHT_NUM + && shdr->sh_type != SHT_GNU_LIBLIST + && shdr->sh_type != SHT_CHECKSUM + && shdr->sh_type != SHT_GNU_verdef + && shdr->sh_type != SHT_GNU_verneed + && shdr->sh_type != SHT_GNU_versym) + ERROR (gettext ("unsupported section type %d\n"), (int) shdr->sh_type); + +#define ALL_SH_FLAGS (SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR | SHF_MERGE \ + | SHF_STRINGS | SHF_INFO_LINK | SHF_LINK_ORDER \ + | SHF_OS_NONCONFORMING | SHF_GROUP | SHF_TLS) + if (shdr->sh_flags & ~ALL_SH_FLAGS) + ERROR (gettext ("section [%2zu] '%s' contain unknown flag(s) %d\n"), + cnt, section_name (ebl, cnt), + (int) shdr->sh_flags & ~ALL_SH_FLAGS); + else if (shdr->sh_flags & SHF_TLS) + { + // XXX Correct? + if (shdr->sh_addr != 0 && !gnuld) + ERROR (gettext ("\ +section [%2zu] '%s': thread-local data sections address not zero\n"), + cnt, section_name (ebl, cnt)); + + // XXX TODO more tests!? + } + + if (shdr->sh_link >= shnum) + ERROR (gettext ("\ +section [%2zu] '%s': invalid section reference in link value\n"), + cnt, section_name (ebl, cnt)); + + if (SH_INFO_LINK_P (shdr) && shdr->sh_info >= shnum) + ERROR (gettext ("\ +section [%2zu] '%s': invalid section reference in info value\n"), + cnt, section_name (ebl, cnt)); + + if ((shdr->sh_flags & SHF_MERGE) == 0 + && (shdr->sh_flags & SHF_STRINGS) != 0 + && be_strict) + ERROR (gettext ("\ +section [%2zu] '%s': strings flag set without merge flag\n"), + cnt, section_name (ebl, cnt)); + + if ((shdr->sh_flags & SHF_MERGE) != 0 && shdr->sh_entsize == 0) + ERROR (gettext ("\ +section [%2zu] '%s': merge flag set but entry size is zero\n"), + cnt, section_name (ebl, cnt)); + + if (shdr->sh_flags & SHF_GROUP) + check_scn_group (ebl, cnt); + + if (ehdr->e_type != ET_REL && (shdr->sh_flags & SHF_ALLOC) != 0) + { + /* Make sure the section is contained in a loaded segment + and that the initialization part matches NOBITS sections. */ + int pcnt; + GElf_Phdr phdr_mem; + GElf_Phdr *phdr; + + for (pcnt = 0; pcnt < ehdr->e_phnum; ++pcnt) + if ((phdr = gelf_getphdr (ebl->elf, pcnt, &phdr_mem)) != NULL + && ((phdr->p_type == PT_LOAD + && (shdr->sh_flags & SHF_TLS) == 0) + || (phdr->p_type == PT_TLS + && (shdr->sh_flags & SHF_TLS) != 0)) + && phdr->p_offset <= shdr->sh_offset + && phdr->p_offset + phdr->p_memsz > shdr->sh_offset) + { + /* Found the segment. */ + if (phdr->p_offset + phdr->p_memsz + < shdr->sh_offset + shdr->sh_size) + ERROR (gettext ("\ +section [%2zu] '%s' not fully contained in segment of program header entry %d\n"), + cnt, section_name (ebl, cnt), pcnt); + + if (shdr->sh_type == SHT_NOBITS) + { + if (shdr->sh_offset < phdr->p_offset + phdr->p_filesz + && !is_debuginfo) + ERROR (gettext ("\ +section [%2zu] '%s' has type NOBITS but is read from the file in segment of program header entry %d\n"), + cnt, section_name (ebl, cnt), pcnt); + } + else + { + if (shdr->sh_offset >= phdr->p_offset + phdr->p_filesz) + ERROR (gettext ("\ +section [%2zu] '%s' has not type NOBITS but is not read from the file in segment of program header entry %d\n"), + cnt, section_name (ebl, cnt), pcnt); + } + + break; + } + + if (pcnt == ehdr->e_phnum) + ERROR (gettext ("\ +section [%2zu] '%s': alloc flag set but section not in any loaded segment\n"), + cnt, section_name (ebl, cnt)); + } + + if (cnt == shstrndx && shdr->sh_type != SHT_STRTAB) + ERROR (gettext ("\ +section [%2zu] '%s': ELF header says this is the section header string table but type is not SHT_TYPE\n"), + cnt, section_name (ebl, cnt)); + + switch (shdr->sh_type) + { + case SHT_SYMTAB: + case SHT_DYNSYM: + check_symtab (ebl, ehdr, cnt); + break; + + case SHT_RELA: + check_rela (ebl, ehdr, cnt); + break; + + case SHT_REL: + check_rel (ebl, ehdr, cnt); + break; + + case SHT_DYNAMIC: + check_dynamic (ebl, cnt); + break; + + case SHT_SYMTAB_SHNDX: + check_symtab_shndx (ebl, cnt); + break; + + case SHT_HASH: + check_hash (ebl, cnt); + break; + + case SHT_NULL: + check_null (ebl, shdr, cnt); + break; + + case SHT_GROUP: + check_group (ebl, ehdr, shdr, cnt); + break; + + case SHT_GNU_versym: + check_versym (ebl, shdr, cnt); + break; + + default: + /* Nothing. */ + break; + } + } + + if (has_interp_segment && !dot_interp_section) + ERROR (gettext ("INTERP program header entry but no .interp section\n")); + + free (scnref); +} + + +static void +check_note (Ebl *ebl, GElf_Ehdr *ehdr, GElf_Phdr *phdr, int cnt) +{ + if (ehdr->e_type != ET_CORE && ehdr->e_type != ET_REL + && ehdr->e_type != ET_EXEC && ehdr->e_type != ET_DYN) + ERROR (gettext ("\ +phdr[%d]: no note entries defined for the type of file\n"), + cnt); + + if (is_debuginfo) + /* The p_offset values in a separate debug file are bogus. */ + return; + + char *notemem = gelf_rawchunk (ebl->elf, phdr->p_offset, phdr->p_filesz); + + /* ELF64 files often use note section entries in the 32-bit format. + The p_align field is set to 8 in case the 64-bit format is used. + In case the p_align value is 0 or 4 the 32-bit format is + used. */ + GElf_Xword align = phdr->p_align == 0 || phdr->p_align == 4 ? 4 : 8; +#define ALIGNED_LEN(len) (((len) + align - 1) & ~(align - 1)) + + GElf_Xword idx = 0; + while (idx < phdr->p_filesz) + { + uint64_t namesz; + uint64_t descsz; + uint64_t type; + uint32_t namesz32; + uint32_t descsz32; + + if (align == 4) + { + uint32_t *ptr = (uint32_t *) (notemem + idx); + + if ((__BYTE_ORDER == __LITTLE_ENDIAN + && ehdr->e_ident[EI_DATA] == ELFDATA2MSB) + || (__BYTE_ORDER == __BIG_ENDIAN + && ehdr->e_ident[EI_DATA] == ELFDATA2LSB)) + { + namesz32 = namesz = bswap_32 (*ptr); + ++ptr; + descsz32 = descsz = bswap_32 (*ptr); + ++ptr; + type = bswap_32 (*ptr); + } + else + { + namesz32 = namesz = *ptr++; + descsz32 = descsz = *ptr++; + type = *ptr; + } + } + else + { + uint64_t *ptr = (uint64_t *) (notemem + idx); + uint32_t *ptr32 = (uint32_t *) (notemem + idx); + + if ((__BYTE_ORDER == __LITTLE_ENDIAN + && ehdr->e_ident[EI_DATA] == ELFDATA2MSB) + || (__BYTE_ORDER == __BIG_ENDIAN + && ehdr->e_ident[EI_DATA] == ELFDATA2LSB)) + { + namesz = bswap_64 (*ptr); + ++ptr; + descsz = bswap_64 (*ptr); + ++ptr; + type = bswap_64 (*ptr); + + namesz32 = bswap_32 (*ptr32); + ++ptr32; + descsz32 = bswap_32 (*ptr32); + } + else + { + namesz = *ptr++; + descsz = *ptr++; + type = *ptr; + + namesz32 = *ptr32++; + descsz32 = *ptr32; + } + } + + if (idx + 3 * align > phdr->p_filesz + || (idx + 3 * align + ALIGNED_LEN (namesz) + ALIGNED_LEN (descsz) + > phdr->p_filesz)) + { + if (ehdr->e_ident[EI_CLASS] == ELFCLASS64 + && idx + 3 * 4 <= phdr->p_filesz + && (idx + 3 * 4 + ALIGNED_LEN (namesz32) + ALIGNED_LEN (descsz32) + <= phdr->p_filesz)) + ERROR (gettext ("\ +phdr[%d]: note entries probably in form of a 32-bit ELF file\n"), cnt); + else + ERROR (gettext ("phdr[%d]: extra %zu bytes after last note\n"), + cnt, (size_t) (phdr->p_filesz - idx)); + break; + } + + /* Make sure it is one of the note types we know about. */ + if (ehdr->e_type == ET_CORE) + { + switch (type) + { + case NT_PRSTATUS: + case NT_FPREGSET: + case NT_PRPSINFO: + case NT_TASKSTRUCT: /* NT_PRXREG on Solaris. */ + case NT_PLATFORM: + case NT_AUXV: + case NT_GWINDOWS: + case NT_ASRS: + case NT_PSTATUS: + case NT_PSINFO: + case NT_PRCRED: + case NT_UTSNAME: + case NT_LWPSTATUS: + case NT_LWPSINFO: + case NT_PRFPXREG: + /* Known type. */ + break; + + default: + ERROR (gettext ("\ +phdr[%d]: unknown core file note type %" PRIu64 " at offset %" PRIu64 "\n"), + cnt, type, idx); + } + } + else + { + if (type != NT_VERSION) + ERROR (gettext ("\ +phdr[%d]: unknown object file note type %" PRIu64 " at offset %" PRIu64 "\n"), + cnt, type, idx); + } + + /* Move to the next entry. */ + idx += 3 * align + ALIGNED_LEN (namesz) + ALIGNED_LEN (descsz); + + } + + gelf_freechunk (ebl->elf, notemem); +} + + +static void +check_program_header (Ebl *ebl, GElf_Ehdr *ehdr) +{ + if (ehdr->e_phoff == 0) + return; + + if (ehdr->e_type != ET_EXEC && ehdr->e_type != ET_DYN + && ehdr->e_type != ET_CORE) + ERROR (gettext ("\ +only executables, shared objects, and core files can have program headers\n")); + + int num_pt_interp = 0; + int num_pt_tls = 0; + int num_pt_relro = 0; + + for (int cnt = 0; cnt < ehdr->e_phnum; ++cnt) + { + GElf_Phdr phdr_mem; + GElf_Phdr *phdr; + + phdr = gelf_getphdr (ebl->elf, cnt, &phdr_mem); + if (phdr == NULL) + { + ERROR (gettext ("cannot get program header entry %d: %s\n"), + cnt, elf_errmsg (-1)); + continue; + } + + if (phdr->p_type >= PT_NUM && phdr->p_type != PT_GNU_EH_FRAME + && phdr->p_type != PT_GNU_STACK && phdr->p_type != PT_GNU_RELRO) + ERROR (gettext ("\ +program header entry %d: unknown program header entry type\n"), + cnt); + + if (phdr->p_type == PT_LOAD) + has_loadable_segment = true; + else if (phdr->p_type == PT_INTERP) + { + if (++num_pt_interp != 1) + { + if (num_pt_interp == 2) + ERROR (gettext ("\ +more than one INTERP entry in program header\n")); + } + has_interp_segment = true; + } + else if (phdr->p_type == PT_TLS) + { + if (++num_pt_tls == 2) + ERROR (gettext ("more than one TLS entry in program header\n")); + } + else if (phdr->p_type == PT_NOTE) + check_note (ebl, ehdr, phdr, cnt); + else if (phdr->p_type == PT_DYNAMIC + && ehdr->e_type == ET_EXEC && ! has_interp_segment) + ERROR (gettext ("static executable cannot have dynamic sections\n")); + else if (phdr->p_type == PT_GNU_RELRO) + { + if (++num_pt_relro == 2) + ERROR (gettext ("\ +more than one GNU_RELRO entry in program header\n")); + else + { + /* Check that the region is in a writable segment. */ + int inner; + for (inner = 0; inner < ehdr->e_phnum; ++inner) + { + GElf_Phdr phdr2_mem; + GElf_Phdr *phdr2; + + phdr2 = gelf_getphdr (ebl->elf, inner, &phdr2_mem); + if (phdr2 == NULL) + continue; + + if (phdr2->p_type == PT_LOAD + && phdr->p_vaddr >= phdr2->p_vaddr + && (phdr->p_vaddr + phdr->p_memsz + <= phdr2->p_vaddr + phdr2->p_memsz)) + { + if ((phdr2->p_flags & PF_W) == 0) + ERROR (gettext ("\ +loadable segment GNU_RELRO applies to is not writable\n")); + if ((phdr2->p_flags & PF_X) != 0) + ERROR (gettext ("\ +loadable segment GNU_RELRO applies to is executable\n")); + break; + } + } + + if (inner >= ehdr->e_phnum) + ERROR (gettext ("\ +GNU_RELRO segment not contained in a loaded segment\n")); + } + } + + if (phdr->p_filesz > phdr->p_memsz) + ERROR (gettext ("\ +program header entry %d: file size greater than memory size\n"), + cnt); + + if (phdr->p_align > 1) + { + if (!powerof2 (phdr->p_align)) + ERROR (gettext ("\ +program header entry %d: alignment not a power of 2\n"), cnt); + else if ((phdr->p_vaddr - phdr->p_offset) % phdr->p_align != 0) + ERROR (gettext ("\ +program header entry %d: file offset and virtual address not module of alignment\n"), cnt); + } + } +} + + +/* Process one file. */ +static void +process_elf_file (Elf *elf, const char *prefix, const char *suffix, + const char *fname, size_t size, bool only_one) +{ + /* Reset variables. */ + ndynamic = 0; + + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr = gelf_getehdr (elf, &ehdr_mem); + Ebl *ebl; + + /* Print the file name. */ + if (!only_one) + { + if (prefix != NULL) + printf ("\n%s(%s)%s:\n", prefix, fname, suffix); + else + printf ("\n%s:\n", fname); + } + + if (ehdr == NULL) + { + ERROR (gettext ("cannot read ELF header: %s\n"), elf_errmsg (-1)); + return; + } + + ebl = ebl_openbackend (elf); + /* If there is no appropriate backend library we cannot test + architecture and OS specific features. Any encountered extension + is an error. */ + + /* Go straight by the gABI, check all the parts in turn. */ + check_elf_header (ebl, ehdr, size); + + /* Check the program header. */ + check_program_header (ebl, ehdr); + + /* Next the section headers. It is OK if there are no section + headers at all. */ + check_sections (ebl, ehdr); + + /* Free the resources. */ + ebl_closebackend (ebl); +} diff --git a/src/findtextrel.c b/src/findtextrel.c new file mode 100644 index 0000000..662fe95 --- /dev/null +++ b/src/findtextrel.c @@ -0,0 +1,596 @@ +/* Locate source files or functions which caused text relocations. + Copyright (C) 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2005. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +struct segments +{ + GElf_Addr from; + GElf_Addr to; +}; + + +/* Name and version of program. */ +static void print_version (FILE *stream, struct argp_state *state); +void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; + +/* Bug report address. */ +const char *argp_program_bug_address = PACKAGE_BUGREPORT; + +/* Values for the parameters which have no short form. */ +#define OPT_DEBUGINFO 0x100 + +/* Definitions of arguments for argp functions. */ +static const struct argp_option options[] = +{ + { NULL, 0, NULL, 0, N_("Input Selection:"), 0 }, + { "root", 'r', "PATH", 0, N_("Prepend PATH to all file names"), 0 }, + { "debuginfo", OPT_DEBUGINFO, "PATH", 0, + N_("Use PATH as root of debuginfo hierarchy"), 0 }, + + { NULL, 0, NULL, 0, N_("Miscellaneous:"), 0 }, + { NULL, 0, NULL, 0, NULL, 0 } +}; + +/* Short description of program. */ +static const char doc[] = N_("\ +Locate source of text relocations in FILEs (a.out by default)."); + +/* Strings for arguments in help texts. */ +static const char args_doc[] = N_("[FILE...]"); + +/* Prototype for option handler. */ +static error_t parse_opt (int key, char *arg, struct argp_state *state); + +/* Data structure to communicate with argp functions. */ +static struct argp argp = +{ + options, parse_opt, args_doc, doc, NULL, NULL, NULL +}; + + +/* Print symbols in file named FNAME. */ +static int process_file (const char *fname, bool more_than_one); + +/* Check for text relocations in the given file. The segment + information is known. */ +static void check_rel (size_t nsegments, struct segments segments[nsegments], + GElf_Addr addr, Elf *elf, Elf_Scn *symscn, Dwarf *dw, + const char *fname, bool more_than_one, + void **knownsrcs); + + + +/* User-provided root directory. */ +static const char *rootdir = "/"; + +/* Root of debuginfo directory hierarchy. */ +static const char *debuginfo_root; + + +int +main (int argc, char *argv[]) +{ + int remaining; + int result = 0; + + /* Set locale. */ + (void) setlocale (LC_ALL, ""); + + /* Make sure the message catalog can be found. */ + (void) bindtextdomain (PACKAGE, LOCALEDIR); + + /* Initialize the message catalog. */ + (void) textdomain (PACKAGE); + + /* Parse and process arguments. */ + (void) argp_parse (&argp, argc, argv, 0, &remaining, NULL); + + /* Tell the library which version we are expecting. */ + elf_version (EV_CURRENT); + + /* If the user has not specified the root directory for the + debuginfo hierarchy, we have to determine it ourselves. */ + if (debuginfo_root == NULL) + { + // XXX The runtime should provide this information. +#if defined __ia64__ || defined __alpha__ + debuginfo_root = "/usr/lib/debug"; +#else + debuginfo_root = (sizeof (long int) == 4 + ? "/usr/lib/debug" : "/usr/lib64/debug"); +#endif + } + + if (remaining == argc) + result = process_file ("a.out", false); + else + { + /* Process all the remaining files. */ + const bool more_than_one = remaining + 1 < argc; + + do + result |= process_file (argv[remaining], more_than_one); + while (++remaining < argc); + } + + return result; +} + + +/* Print the version information. */ +static void +print_version (FILE *stream, struct argp_state *state __attribute__ ((unused))) +{ + fprintf (stream, "findtextrel (%s) %s\n", PACKAGE_NAME, VERSION); + fprintf (stream, gettext ("\ +Copyright (C) %s Red Hat, Inc.\n\ +This is free software; see the source for copying conditions. There is NO\n\ +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ +"), "2005"); + fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); +} + + +/* Handle program arguments. */ +static error_t +parse_opt (int key, char *arg, + struct argp_state *state __attribute__ ((unused))) +{ + switch (key) + { + case 'r': + rootdir = arg; + break; + + case OPT_DEBUGINFO: + debuginfo_root = arg; + break; + + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + + +static void +noop (void *arg __attribute__ ((unused))) +{ +} + + +static int +process_file (const char *fname, bool more_than_one) +{ + int result = 0; + void *knownsrcs = NULL; + + size_t fname_len = strlen (fname); + size_t rootdir_len = strlen (rootdir); + const char *real_fname = fname; + if (fname[0] == '/' && (rootdir[0] != '/' || rootdir[1] != '\0')) + { + /* Prepend the user-provided root directory. */ + char *new_fname = alloca (rootdir_len + fname_len + 2); + *((char *) mempcpy (stpcpy (mempcpy (new_fname, rootdir, rootdir_len), + "/"), + fname, fname_len)) = '\0'; + real_fname = new_fname; + } + + int fd = open64 (real_fname, O_RDONLY); + if (fd == -1) + { + error (0, errno, gettext ("cannot open '%s'"), fname); + return 1; + } + + Elf *elf = elf_begin (fd, ELF_C_READ_MMAP, NULL); + if (elf == NULL) + { + error (0, 0, gettext ("cannot create ELF descriptor for '%s': %s"), + fname, elf_errmsg (-1)); + goto err_close; + } + + /* Make sure the file is a DSO. */ + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + { + error (0, 0, gettext ("cannot get ELF header '%s': %s"), + fname, elf_errmsg (-1)); + err_elf_close: + elf_end (elf); + err_close: + close (fd); + return 1; + } + + if (ehdr->e_type != ET_DYN) + { + error (0, 0, gettext ("'%s' is not a DSO or PIE"), fname); + goto err_elf_close; + } + + /* Determine whether the DSO has text relocations at all and locate + the symbol table. */ + Elf_Scn *symscn = NULL; + Elf_Scn *scn = NULL; + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + /* Handle the section if it is a symbol table. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr == NULL) + { + error (0, 0, + gettext ("getting get section header of section %zu: %s"), + elf_ndxscn (scn), elf_errmsg (-1)); + goto err_elf_close; + } + + if (shdr->sh_type == SHT_DYNAMIC) + { + Elf_Data *data = elf_getdata (scn, NULL); + + for (size_t cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; + ++cnt) + { + GElf_Dyn dynmem; + GElf_Dyn *dyn; + + dyn = gelf_getdyn (data, cnt, &dynmem); + if (dyn == NULL) + { + error (0, 0, gettext ("cannot read dynamic section: %s"), + elf_errmsg (-1)); + goto err_elf_close; + } + + if (dyn->d_tag == DT_TEXTREL + || (dyn->d_tag == DT_FLAGS + && (dyn->d_un.d_val & DF_TEXTREL) != 0)) + goto have_textrel; + } + } + else if (shdr->sh_type == SHT_SYMTAB) + symscn = scn; + } + + error (0, 0, gettext ("no text relocations reported in '%s'"), fname); + return 1; + + have_textrel:; + int fd2 = -1; + Elf *elf2 = NULL; + /* Get the address ranges for the loaded segments. */ + size_t nsegments_max = 10; + size_t nsegments = 0; + struct segments *segments + = (struct segments *) malloc (nsegments_max * sizeof (segments[0])); + if (segments == NULL) + error (1, errno, gettext ("while reading ELF file")); + + for (int i = 0; i < ehdr->e_phnum; ++i) + { + GElf_Phdr phdr_mem; + GElf_Phdr *phdr = gelf_getphdr (elf, i, &phdr_mem); + if (phdr == NULL) + { + error (0, 0, + gettext ("cannot get program header index at offset %d: %s"), + i, elf_errmsg (-1)); + result = 1; + goto next; + } + + if (phdr->p_type == PT_LOAD && (phdr->p_flags & PF_W) == 0) + { + if (nsegments == nsegments_max) + { + nsegments_max *= 2; + segments + = (struct segments *) realloc (segments, + nsegments_max + * sizeof (segments[0])); + if (segments == NULL) + { + error (0, 0, gettext ("\ +cannot get program header index at offset %d: %s"), + i, elf_errmsg (-1)); + result = 1; + goto next; + } + } + + segments[nsegments].from = phdr->p_vaddr; + segments[nsegments].to = phdr->p_vaddr + phdr->p_memsz; + ++nsegments; + } + } + + if (nsegments > 0) + { + + Dwarf *dw = dwarf_begin_elf (elf, DWARF_C_READ, NULL); + /* Look for debuginfo files if the information is not the in + opened file itself. This makes only sense if the input file + is specified with an absolute path. */ + if (dw == NULL && fname[0] == '/') + { + size_t debuginfo_rootlen = strlen (debuginfo_root); + char *difname = (char *) alloca (rootdir_len + debuginfo_rootlen + + fname_len + 8); + strcpy (mempcpy (stpcpy (mempcpy (mempcpy (difname, rootdir, + rootdir_len), + debuginfo_root, + debuginfo_rootlen), + "/"), + fname, fname_len), + ".debug"); + + fd2 = open64 (difname, O_RDONLY); + if (fd2 != -1 + && (elf2 = elf_begin (fd2, ELF_C_READ_MMAP, NULL)) != NULL) + dw = dwarf_begin_elf (elf2, DWARF_C_READ, NULL); + } + + /* Look at all relocations and determine which modify + write-protected segments. */ + scn = NULL; + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + /* Handle the section if it is a symbol table. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr == NULL) + { + error (0, 0, + gettext ("cannot get section header of section %Zu: %s"), + elf_ndxscn (scn), elf_errmsg (-1)); + result = 1; + goto next; + } + + if ((shdr->sh_type == SHT_REL || shdr->sh_type == SHT_RELA) + && symscn == NULL) + { + symscn = elf_getscn (elf, shdr->sh_link); + if (symscn == NULL) + { + error (0, 0, gettext ("\ +cannot get symbol table section %zu in '%s': %s"), + (size_t) shdr->sh_link, fname, elf_errmsg (-1)); + result = 1; + goto next; + } + } + + if (shdr->sh_type == SHT_REL) + { + Elf_Data *data = elf_getdata (scn, NULL); + + for (int cnt = 0; + (size_t) cnt < shdr->sh_size / shdr->sh_entsize; + ++cnt) + { + GElf_Rel rel_mem; + GElf_Rel *rel = gelf_getrel (data, cnt, &rel_mem); + if (rel == NULL) + { + error (0, 0, gettext ("\ +cannot get relocation at index %d in section %zu in '%s': %s"), + cnt, elf_ndxscn (scn), fname, elf_errmsg (-1)); + result = 1; + goto next; + } + + check_rel (nsegments, segments, rel->r_offset, elf, + symscn, dw, fname, more_than_one, &knownsrcs); + } + } + else if (shdr->sh_type == SHT_RELA) + { + Elf_Data *data = elf_getdata (scn, NULL); + + for (int cnt = 0; + (size_t) cnt < shdr->sh_size / shdr->sh_entsize; + ++cnt) + { + GElf_Rela rela_mem; + GElf_Rela *rela = gelf_getrela (data, cnt, &rela_mem); + if (rela == NULL) + { + error (0, 0, gettext ("\ +cannot get relocation at index %d in section %zu in '%s': %s"), + cnt, elf_ndxscn (scn), fname, elf_errmsg (-1)); + result = 1; + goto next; + } + + check_rel (nsegments, segments, rela->r_offset, elf, + symscn, dw, fname, more_than_one, &knownsrcs); + } + } + } + + dwarf_end (dw); + } + + next: + elf_end (elf); + elf_end (elf2); + close (fd); + if (fd2 != -1) + close (fd2); + + tdestroy (knownsrcs, noop); + + return result; +} + + +static int +ptrcompare (const void *p1, const void *p2) +{ + if ((uintptr_t) p1 < (uintptr_t) p2) + return -1; + if ((uintptr_t) p1 > (uintptr_t) p2) + return 1; + return 0; +} + + +static void +check_rel (size_t nsegments, struct segments segments[nsegments], + GElf_Addr addr, Elf *elf, Elf_Scn *symscn, Dwarf *dw, + const char *fname, bool more_than_one, void **knownsrcs) +{ + for (size_t cnt = 0; cnt < nsegments; ++cnt) + if (segments[cnt].from <= addr && segments[cnt].to > addr) + { + Dwarf_Die die_mem; + Dwarf_Die *die; + Dwarf_Line *line; + const char *src; + + if (more_than_one) + printf ("%s: ", fname); + + if ((die = dwarf_addrdie (dw, addr, &die_mem)) != NULL + && (line = dwarf_getsrc_die (die, addr)) != NULL + && (src = dwarf_linesrc (line, NULL, NULL)) != NULL) + { + /* There can be more than one relocation against one file. + Try to avoid multiple messages. And yes, the code uses + pointer comparison. */ + if (tfind (src, knownsrcs, ptrcompare) == NULL) + { + printf (gettext ("%s not compiled with -fpic/-fPIC\n"), src); + tsearch (src, knownsrcs, ptrcompare); + } + return; + } + else + { + /* At least look at the symbol table to see which function + the modified address is in. */ + Elf_Data *symdata = elf_getdata (symscn, NULL); + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (symscn, &shdr_mem); + if (shdr != NULL) + { + GElf_Addr lowaddr = 0; + int lowidx = -1; + GElf_Addr highaddr = ~0ul; + int highidx = -1; + GElf_Sym sym_mem; + GElf_Sym *sym; + + for (int i = 0; (size_t) i < shdr->sh_size / shdr->sh_entsize; + ++i) + { + sym = gelf_getsym (symdata, i, &sym_mem); + if (sym == NULL) + continue; + + if (sym->st_value < addr && sym->st_value > lowaddr) + { + lowaddr = sym->st_value; + lowidx = i; + } + if (sym->st_value > addr && sym->st_value < highaddr) + { + highaddr = sym->st_value; + highidx = i; + } + } + + if (lowidx != -1) + { + sym = gelf_getsym (symdata, lowidx, &sym_mem); + assert (sym != NULL); + + const char *lowstr = elf_strptr (elf, shdr->sh_link, + sym->st_name); + + if (sym->st_value + sym->st_size > addr) + { + /* It is this function. */ + if (tfind (lowstr, knownsrcs, ptrcompare) == NULL) + { + printf (gettext ("\ +the file containing the function '%s' is not compiled with -fpic/-fPIC\n"), + lowstr); + tsearch (lowstr, knownsrcs, ptrcompare); + } + } + else if (highidx == -1) + printf (gettext ("\ +the file containing the function '%s' might not be compiled with -fpic/-fPIC\n"), + lowstr); + else + { + sym = gelf_getsym (symdata, highidx, &sym_mem); + assert (sym != NULL); + + printf (gettext ("\ +either the file containing the function '%s' or the file containing the function '%s' is not compiled with -fpic/-fPIC\n"), + lowstr, elf_strptr (elf, shdr->sh_link, + sym->st_name)); + } + return; + } + else if (highidx != -1) + { + sym = gelf_getsym (symdata, highidx, &sym_mem); + assert (sym != NULL); + + printf (gettext ("\ +the file containing the function '%s' might not be compiled with -fpic/-fPIC\n"), + elf_strptr (elf, shdr->sh_link, sym->st_name)); + return; + } + } + } + + printf (gettext ("\ +a relocation modifies memory at offset %llu in a write-protected segment\n"), + (unsigned long long int) addr); + break; + } +} diff --git a/src/i386_ld.c b/src/i386_ld.c new file mode 100644 index 0000000..ee1cb96 --- /dev/null +++ b/src/i386_ld.c @@ -0,0 +1,894 @@ +/* Copyright (C) 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include + +// XXX For debugging +#include + +#include +#include "ld.h" +#include "list.h" +/* x86 is little endian. */ +#define UNALIGNED_ACCESS_CLASS LITTLE_ENDIAN +#include "unaligned.h" +#include "xelf.h" + + +/* The old callbacks. */ +static int (*old_open_outfile) (struct ld_state *, int, int, int); + + +static int +elf_i386_open_outfile (struct ld_state *statep, + int machine __attribute__ ((unused)), + int klass __attribute__ ((unused)), + int data __attribute__ ((unused))) +{ + /* This backend only handles 32-bit object files. */ + /* XXX For now just use the generic backend. */ + return old_open_outfile (statep, EM_386, ELFCLASS32, ELFDATA2LSB); +} + + +/* Process relocations for the output in a relocatable file. This + only means adjusting offset and symbol indices. */ +static void +elf_i386_relocate_section (struct ld_state *statep __attribute__ ((unused)), + Elf_Scn *outscn, struct scninfo *firstp, + const Elf32_Word *dblindirect) +{ + struct scninfo *runp; + Elf_Data *data; + + /* Iterate over all the input sections. Appropriate data buffers in the + output sections were already created. I get them iteratively, too. */ + runp = firstp; + data = NULL; + do + { + Elf_Data *reltgtdata; + Elf_Data *insymdata; + Elf_Data *inxndxdata = NULL; + size_t maxcnt; + size_t cnt; + const Elf32_Word *symindirect; + struct symbol **symref; + struct usedfiles *file = runp->fileinfo; + XElf_Shdr *shdr = &SCNINFO_SHDR (runp->shdr); + + /* Get the output section data buffer for this input section. */ + data = elf_getdata (outscn, data); + assert (data != NULL); + + /* Get the data for section in the input file this relocation + section is relocating. Since these buffers are reused in the + output modifying these buffers has the correct result. */ + reltgtdata = elf_getdata (file->scninfo[shdr->sh_info].scn, NULL); + + /* Get the data for the input section symbol table for this + relocation section. */ + insymdata = elf_getdata (file->scninfo[shdr->sh_link].scn, NULL); + assert (insymdata != NULL); + + /* And the extended section index table. */ + inxndxdata = runp->fileinfo->xndxdata; + + /* Number of relocations. */ + maxcnt = shdr->sh_size / shdr->sh_entsize; + + /* Array directing local symbol table offsets to output symbol + table offsets. */ + symindirect = file->symindirect; + + /* References to the symbol records. */ + symref = file->symref; + + /* Iterate over all the relocations in the section. */ + for (cnt = 0; cnt < maxcnt; ++cnt) + { + XElf_Rel_vardef (rel); + Elf32_Word si; + XElf_Sym_vardef (sym); + Elf32_Word xndx; + + /* Get the relocation data itself. x86 uses Rel + relocations. In case we have to handle Rela as well the + whole loop probably should be duplicated. */ + xelf_getrel (data, cnt, rel); + assert (rel != NULL); + + /* Compute the symbol index in the output file. */ + si = symindirect[XELF_R_SYM (rel->r_info)]; + if (si == 0) + { + /* This happens if the symbol is locally undefined or + superceded by some other definition. */ + assert (symref[XELF_R_SYM (rel->r_info)] != NULL); + si = symref[XELF_R_SYM (rel->r_info)]->outsymidx; + } + /* Take reordering performed to sort the symbol table into + account. */ + si = dblindirect[si]; + + /* Get the symbol table entry. */ + xelf_getsymshndx (insymdata, inxndxdata, XELF_R_SYM (rel->r_info), + sym, xndx); + if (sym->st_shndx != SHN_XINDEX) + xndx = sym->st_shndx; + assert (xndx < SHN_LORESERVE || xndx > SHN_HIRESERVE); + + /* We fortunately don't have to do much. The relocations + mostly get only updates of the offset. Only is a + relocation referred to a section do we have to do + something. In this case the reference to the sections + has no direct equivalent since the part the input section + contributes need not start at the same offset as in the + input file. Therefore we have to adjust the addend which + in the case of Rel relocations is in the target section + itself. */ + if (XELF_ST_TYPE (sym->st_info) == STT_SECTION) + { + Elf32_Word toadd; + + /* We expect here on R_386_32 relocations. */ + assert (XELF_R_TYPE (rel->r_info) == R_386_32); + + /* Avoid writing to the section memory if this is + effectively a no-op since it might save a + copy-on-write operation. */ + toadd = file->scninfo[xndx].offset; + if (toadd != 0) + add_4ubyte_unaligned (reltgtdata->d_buf + rel->r_offset, + toadd); + } + + /* Adjust the offset for the position of the input section + content in the output section. */ + rel->r_offset += file->scninfo[shdr->sh_info].offset; + + /* And finally adjust the index of the symbol in the output + symbol table. */ + rel->r_info = XELF_R_INFO (si, XELF_R_TYPE (rel->r_info)); + + /* Store the result. */ + (void) xelf_update_rel (data, cnt, rel); + } + + runp = runp->next; + } + while (runp != firstp); +} + + +/* Each PLT entry has 16 bytes. We need one entry as overhead for + the code to set up the call into the runtime relocation. */ +#define PLT_ENTRY_SIZE 16 + +static void +elf_i386_initialize_plt (struct ld_state *statep, Elf_Scn *scn) +{ + Elf_Data *data; + XElf_Shdr_vardef (shdr); + + /* Change the entry size in the section header. */ + xelf_getshdr (scn, shdr); + assert (shdr != NULL); + shdr->sh_entsize = PLT_ENTRY_SIZE; + (void) xelf_update_shdr (scn, shdr); + + data = elf_newdata (scn); + if (data == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot allocate PLT section: %s"), + elf_errmsg (-1)); + + /* We need one special PLT entry (performing the jump to the runtime + relocation routines) and one for each function we call in a DSO. */ + data->d_size = (1 + statep->nplt) * PLT_ENTRY_SIZE; + data->d_buf = xcalloc (1, data->d_size); + data->d_align = 8; + data->d_off = 0; + + statep->nplt_used = 1; +} + + +static void +elf_i386_initialize_pltrel (struct ld_state *statep, Elf_Scn *scn) +{ + Elf_Data *data; + + data = elf_newdata (scn); + if (data == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot allocate PLTREL section: %s"), + elf_errmsg (-1)); + + /* One relocation per PLT entry. */ + data->d_size = statep->nplt * sizeof (Elf32_Rel); + data->d_buf = xcalloc (1, data->d_size); + data->d_type = ELF_T_REL; + data->d_align = 4; + data->d_off = 0; +} + + +static void +elf_i386_initialize_got (struct ld_state *statep, Elf_Scn *scn) +{ + Elf_Data *data; + + /* If we have no .plt we don't need the special entries we normally + create for it. The other contents is created later. */ + if (statep->ngot + statep->nplt == 0) + return; + + data = elf_newdata (scn); + if (data == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot allocate GOT section: %s"), + elf_errmsg (-1)); + + /* We construct the .got section in pieces. Here we only add the data + structures which are used by the PLT. This includes three reserved + entries at the beginning (the first will contain a pointer to the + .dynamic section), and one word for each PLT entry. */ + data->d_size = (3 + statep->ngot + statep->nplt) * sizeof (Elf32_Addr); + data->d_buf = xcalloc (1, data->d_size); + data->d_align = sizeof (Elf32_Addr); + data->d_off = 0; +} + + +/* The first entry in an absolute procedure linkage table looks like + this. See the SVR4 ABI i386 supplement to see how this works. */ +static const unsigned char elf_i386_plt0_entry[PLT_ENTRY_SIZE] = +{ + 0xff, 0x35, /* pushl contents of address */ + 0, 0, 0, 0, /* replaced with address of .got + 4. */ + 0xff, 0x25, /* jmp indirect */ + 0, 0, 0, 0, /* replaced with address of .got + 8. */ + 0, 0, 0, 0 /* pad out to 16 bytes. */ +}; + +/* Type describing the first PLT entry in non-PIC. */ +struct plt0_entry +{ + /* First a 'push' of the second GOT entry. */ + unsigned char push_instr[2]; + uint32_t gotp4_addr; + /* Second, a 'jmp indirect' to the third GOT entry. */ + unsigned char jmp_instr[2]; + uint32_t gotp8_addr; + /* Padding. */ + unsigned char padding[4]; +} __attribute__ ((packed)); + +/* The first entry in a PIC procedure linkage table look like this. */ +static const unsigned char elf_i386_pic_plt0_entry[PLT_ENTRY_SIZE] = +{ + 0xff, 0xb3, 4, 0, 0, 0, /* pushl 4(%ebx) */ + 0xff, 0xa3, 8, 0, 0, 0, /* jmp *8(%ebx) */ + 0, 0, 0, 0 /* pad out to 16 bytes. */ +}; + +/* Contents of all but the first PLT entry in executable. */ +static const unsigned char elf_i386_plt_entry[PLT_ENTRY_SIZE] = +{ + 0xff, 0x25, /* jmp indirect */ + 0, 0, 0, 0, /* replaced with address of this symbol in .got. */ + 0x68, /* pushl immediate */ + 0, 0, 0, 0, /* replaced with offset into relocation table. */ + 0xe9, /* jmp relative */ + 0, 0, 0, 0 /* replaced with offset to start of .plt. */ +}; + +/* Contents of all but the first PLT entry in DSOs. */ +static const unsigned char elf_i386_pic_plt_entry[PLT_ENTRY_SIZE] = +{ + 0xff, 0xa3, /* jmp *offset(%ebx) */ + 0, 0, 0, 0, /* replaced with offset of this symbol in .got. */ + 0x68, /* pushl immediate */ + 0, 0, 0, 0, /* replaced with offset into relocation table. */ + 0xe9, /* jmp relative */ + 0, 0, 0, 0 /* replaced with offset to start of .plt. */ +}; + +/* Type describing a PLT entry. */ +struct plt_entry +{ + /* The first instruction is 'jmp indirect' or 'jmp *offset(%ebs)'. */ + unsigned char jmp_instr[2]; + uint32_t offset_got; + /* The second instruction is 'push immediate'. */ + unsigned char push_instr; + uint32_t push_imm; + /* Finally a 'jmp relative'. */ + unsigned char jmp_instr2; + uint32_t plt0_offset; +} __attribute__ ((packed)); + + +static void +elf_i386_finalize_plt (struct ld_state *statep, size_t nsym, + size_t nsym_dyn __attribute__ ((unused))) +{ + Elf_Scn *scn; + XElf_Shdr_vardef (shdr); + Elf_Data *data; + Elf_Data *symdata = NULL; + Elf_Data *dynsymdata; + size_t cnt; + const bool build_dso = statep->file_type == dso_file_type; + + if (unlikely (statep->nplt + statep->ngot == 0)) + /* Nothing to be done. */ + return; + + /* Get the address of the got section. */ + scn = elf_getscn (statep->outelf, statep->gotscnidx); + xelf_getshdr (scn, shdr); + data = elf_getdata (scn, NULL); + assert (shdr != NULL && data != NULL); + Elf32_Addr gotaddr = shdr->sh_addr; + + /* Now create the initial values for the .got section. The first + word contains the address of the .dynamic section. */ + xelf_getshdr (elf_getscn (statep->outelf, statep->dynamicscnidx), shdr); + assert (shdr != NULL); + ((Elf32_Word *) data->d_buf)[0] = shdr->sh_addr; + + /* The second and third entry are left empty for use by the dynamic + linker. The following entries are pointers to the instructions + following the initial jmp instruction in the corresponding PLT + entry. Since the first PLT entry is special the first used one + has the index 1. */ + scn = elf_getscn (statep->outelf, statep->pltscnidx); + xelf_getshdr (scn, shdr); + assert (shdr != NULL); + + dynsymdata = elf_getdata (elf_getscn (statep->outelf, statep->dynsymscnidx), + NULL); + assert (dynsymdata != NULL); + + if (statep->symscnidx != 0) + { + symdata = elf_getdata (elf_getscn (statep->outelf, statep->symscnidx), + NULL); + assert (symdata != NULL); + } + + for (cnt = 0; cnt < statep->nplt; ++cnt) + { + assert ((4 + cnt) * sizeof (Elf32_Word) <= data->d_size); + + /* Address in the PLT. */ + Elf32_Addr pltentryaddr = shdr->sh_addr + (1 + cnt) * PLT_ENTRY_SIZE; + + /* Point the GOT entry at the PLT entry, after the initial jmp. */ + ((Elf32_Word *) data->d_buf)[3 + cnt] = pltentryaddr + 6; + + /* The value of the symbol is the address of the corresponding PLT + entry. Store the address, also for the normal symbol table if + this is necessary. */ + ((Elf32_Sym *) dynsymdata->d_buf)[1 + cnt].st_value = pltentryaddr; + + if (symdata != NULL) + ((Elf32_Sym *) symdata->d_buf)[nsym - statep->nplt + cnt].st_value + = pltentryaddr; + } + + /* Create the .plt section. */ + scn = elf_getscn (statep->outelf, statep->pltscnidx); + data = elf_getdata (scn, NULL); + assert (data != NULL); + + /* Create the first entry. */ + assert (data->d_size >= PLT_ENTRY_SIZE); + if (build_dso) + /* Copy the entry. It's complete, no relocation needed. */ + memcpy (data->d_buf, elf_i386_pic_plt0_entry, PLT_ENTRY_SIZE); + else + { + /* Copy the skeleton. */ + memcpy (data->d_buf, elf_i386_plt0_entry, PLT_ENTRY_SIZE); + + /* And fill in the addresses. */ + struct plt0_entry *addr = (struct plt0_entry *) data->d_buf; + addr->gotp4_addr = target_bswap_32 (gotaddr + 4); + addr->gotp8_addr = target_bswap_32 (gotaddr + 8); + } + + /* For DSOs we need GOT offsets, otherwise the GOT address. */ + Elf32_Addr gotaddr_off = build_dso ? 0 : gotaddr; + + /* Create the remaining entries. */ + const unsigned char *plt_template + = build_dso ? elf_i386_pic_plt_entry : elf_i386_plt_entry; + + for (cnt = 0; cnt < statep->nplt; ++cnt) + { + struct plt_entry *addr; + + /* Copy the template. */ + assert (data->d_size >= (2 + cnt) * PLT_ENTRY_SIZE); + addr = (struct plt_entry *) ((char *) data->d_buf + + (1 + cnt) * PLT_ENTRY_SIZE); + memcpy (addr, plt_template, PLT_ENTRY_SIZE); + + /* And once more, fill in the addresses. First the address of + this symbol in .got. */ + addr->offset_got = target_bswap_32 (gotaddr_off + + (3 + cnt) * sizeof (Elf32_Addr)); + /* Offset into relocation table. */ + addr->push_imm = target_bswap_32 (cnt * sizeof (Elf32_Rel)); + /* Offset to start of .plt. */ + addr->plt0_offset = target_bswap_32 (-(2 + cnt) * PLT_ENTRY_SIZE); + } + + /* Create the .rel.plt section data. It simply means relocations + addressing the corresponding entry in the .got section. The + section name is misleading. */ + scn = elf_getscn (statep->outelf, statep->pltrelscnidx); + xelf_getshdr (scn, shdr); + data = elf_getdata (scn, NULL); + assert (shdr != NULL && data != NULL); + + /* Update the sh_link to point to the section being modified. We + point it here (correctly) to the .got section. Some linkers + (e.g., the GNU binutils linker) point to the .plt section. This + is wrong since the .plt section isn't modified even though the + name .rel.plt suggests that this is correct. */ + shdr->sh_link = statep->dynsymscnidx; + shdr->sh_info = statep->gotscnidx; + (void) xelf_update_shdr (scn, shdr); + + for (cnt = 0; cnt < statep->nplt; ++cnt) + { + XElf_Rel_vardef (rel); + + assert ((1 + cnt) * sizeof (Elf32_Rel) <= data->d_size); + xelf_getrel_ptr (data, cnt, rel); + rel->r_offset = gotaddr + (3 + cnt) * sizeof (Elf32_Addr); + /* The symbol table entries for the functions from DSOs are at + the end of the symbol table. */ + rel->r_info = XELF_R_INFO (1 + cnt, R_386_JMP_SLOT); + (void) xelf_update_rel (data, cnt, rel); + } +} + + +static int +elf_i386_rel_type (struct ld_state *statep __attribute__ ((__unused__))) +{ + /* ELF/i386 uses REL. */ + return DT_REL; +} + + +static void +elf_i386_count_relocations (struct ld_state *statep, struct scninfo *scninfo) +{ + /* We go through the list of input sections and count those relocations + which are not handled by the linker. At the same time we have to + see how many GOT entries we need and how much .bss space is needed + for copy relocations. */ + Elf_Data *data = elf_getdata (scninfo->scn, NULL); + XElf_Shdr *shdr = &SCNINFO_SHDR (scninfo->shdr); + size_t maxcnt = shdr->sh_size / shdr->sh_entsize; + size_t relsize = 0; + size_t cnt; + struct symbol *sym; + + assert (shdr->sh_type == SHT_REL); + + for (cnt = 0; cnt < maxcnt; ++cnt) + { + XElf_Rel_vardef (rel); + + xelf_getrel (data, cnt, rel); + /* XXX Should we complain about failing accesses? */ + if (rel != NULL) + { + Elf32_Word r_sym = XELF_R_SYM (rel->r_info); + + switch (XELF_R_TYPE (rel->r_info)) + { + case R_386_GOT32: + if (! scninfo->fileinfo->symref[r_sym]->defined) + relsize += sizeof (Elf32_Rel); + + /* This relocation is not emitted in the output file but + requires a GOT entry. */ + ++statep->ngot; + ++statep->nrel_got; + + /* FALLTHROUGH */ + + case R_386_GOTOFF: + case R_386_GOTPC: + statep->need_got = true; + break; + + case R_386_32: + case R_386_PC32: + /* These relocations cause text relocations in DSOs. */ + if (linked_from_dso_p (scninfo, r_sym)) + { + if (statep->file_type == dso_file_type) + { + relsize += sizeof (Elf32_Rel); + statep->dt_flags |= DF_TEXTREL; + } + else + { + /* Non-function objects from a DSO need to get a + copy relocation. */ + sym = scninfo->fileinfo->symref[r_sym]; + + /* Only do this if we have not requested a copy + relocation already. */ + if (unlikely (sym->type != STT_FUNC) && ! sym->need_copy) + { + sym->need_copy = 1; + ++statep->ncopy; + relsize += sizeof (Elf32_Rel); + } + } + } + else if (statep->file_type == dso_file_type + && r_sym >= SCNINFO_SHDR (scninfo->fileinfo->scninfo[shdr->sh_link].shdr).sh_info + && scninfo->fileinfo->symref[r_sym]->outdynsymidx != 0 + && XELF_R_TYPE (rel->r_info) == R_386_32) + relsize += sizeof (Elf32_Rel); + break; + + case R_386_PLT32: + /* We might need a PLT entry. But we cannot say for sure + here since one of the symbols might turn up being + defined in the executable (if we create such a thing). + If a DSO is created we still might use a local + definition. + + If the symbol is not defined and we are not creating + a statically linked binary, then we need in any case + a PLT entry. */ + if (! scninfo->fileinfo->symref[r_sym]->defined) + { + assert (!statep->statically); + + sym = scninfo->fileinfo->symref[r_sym]; + sym->type = STT_FUNC; + sym->in_dso = 1; + sym->defined = 1; + + /* Remove from the list of unresolved symbols. */ + --statep->nunresolved; + if (! sym->weak) + --statep->nunresolved_nonweak; + CDBL_LIST_DEL (statep->unresolved, sym); + + /* Add to the list of symbols we expect from a DSO. */ + ++statep->nplt; + ++statep->nfrom_dso; + CDBL_LIST_ADD_REAR (statep->from_dso, sym); + } + break; + + case R_386_TLS_GD: + case R_386_TLS_LDM: + case R_386_TLS_GD_32: + case R_386_TLS_GD_PUSH: + case R_386_TLS_GD_CALL: + case R_386_TLS_GD_POP: + case R_386_TLS_LDM_32: + case R_386_TLS_LDM_PUSH: + case R_386_TLS_LDM_CALL: + case R_386_TLS_LDM_POP: + case R_386_TLS_LDO_32: + case R_386_TLS_IE_32: + case R_386_TLS_LE_32: + /* XXX */ + abort (); + break; + + case R_386_NONE: + /* Nothing to be done. */ + break; + + /* These relocation should never be generated by an + assembler. */ + case R_386_COPY: + case R_386_GLOB_DAT: + case R_386_JMP_SLOT: + case R_386_RELATIVE: + case R_386_TLS_DTPMOD32: + case R_386_TLS_DTPOFF32: + case R_386_TLS_TPOFF32: + /* Unknown relocation. */ + default: + abort (); + } + } + } + + scninfo->relsize = relsize; +} + + +static void +elf_i386_create_relocations (struct ld_state *statep, + const Elf32_Word *dblindirect __attribute__ ((unused))) +{ + /* Get the address of the got section. */ + Elf_Scn *pltscn = elf_getscn (statep->outelf, statep->pltscnidx); + Elf32_Shdr *shdr = elf32_getshdr (pltscn); + assert (shdr != NULL); + Elf32_Addr pltaddr = shdr->sh_addr; + + Elf_Scn *gotscn = elf_getscn (statep->outelf, statep->gotscnidx); + shdr = elf32_getshdr (gotscn); + assert (shdr != NULL); + Elf32_Addr gotaddr = shdr->sh_addr; + + Elf_Scn *reldynscn = elf_getscn (statep->outelf, statep->reldynscnidx); + Elf_Data *reldyndata = elf_getdata (reldynscn, NULL); + + size_t nreldyn = 0; +#define ngot_used (3 + statep->nplt + nreldyn) + + struct scninfo *first = statep->rellist->next; + struct scninfo *runp = first; + do + { + XElf_Shdr *rshdr = &SCNINFO_SHDR (runp->shdr); + Elf_Data *reldata = elf_getdata (runp->scn, NULL); + int nrels = rshdr->sh_size / rshdr->sh_entsize; + + /* We will need the following vlaues a couple of times. Help + the compiler and improve readability. */ + struct symbol **symref = runp->fileinfo->symref; + struct scninfo *scninfo = runp->fileinfo->scninfo; + + /* This is the offset of the input section we are looking at in + the output file. */ + XElf_Addr inscnoffset = scninfo[rshdr->sh_info].offset; + + /* The target section. We use the data from the input file. */ + Elf_Data *data = elf_getdata (scninfo[rshdr->sh_info].scn, NULL); + + /* We cannot handle relocations against merge-able sections. */ + assert ((SCNINFO_SHDR (scninfo[rshdr->sh_link].shdr).sh_flags + & SHF_MERGE) == 0); + + /* Cache the access to the symbol table data. */ + Elf_Data *symdata = elf_getdata (scninfo[rshdr->sh_link].scn, NULL); + + int cnt; + for (cnt = 0; cnt < nrels; ++cnt) + { + XElf_Rel_vardef (rel); + XElf_Rel *rel2; + xelf_getrel (reldata, cnt, rel); + assert (rel != NULL); + XElf_Addr reladdr = inscnoffset + rel->r_offset; + XElf_Addr value; + + size_t idx = XELF_R_SYM (rel->r_info); + if (idx < runp->fileinfo->nlocalsymbols) + { + XElf_Sym_vardef (sym); + xelf_getsym (symdata, idx, sym); + + /* The value just depends on the position of the referenced + section in the output file and the addend. */ + value = scninfo[sym->st_shndx].offset + sym->st_value; + } + else if (symref[idx]->in_dso) + { + /* MERGE.VALUE contains the PLT index. We have to add 1 since + there is this one special PLT entry at the beginning. */ + assert (symref[idx]->merge.value != 0 + || symref[idx]->type != STT_FUNC); + value = pltaddr + symref[idx]->merge.value * PLT_ENTRY_SIZE; + } + else + value = symref[idx]->merge.value; + + /* Address of the relocated memory in the data buffer. */ + void *relloc = (char *) data->d_buf + rel->r_offset; + + switch (XELF_R_TYPE (rel->r_info)) + { + /* These three cases can be handled together since the + symbol associated with the R_386_GOTPC relocation is + _GLOBAL_OFFSET_TABLE_ which has a value corresponding + to the address of the GOT and the address of the PLT + entry required for R_386_PLT32 is computed above. */ + case R_386_PC32: + case R_386_GOTPC: + case R_386_PLT32: + value -= reladdr; + /* FALLTHROUGH */ + + case R_386_32: + if (linked_from_dso_p (scninfo, idx) + && statep->file_type != dso_file_type + && symref[idx]->type != STT_FUNC) + { + value = (ld_state.copy_section->offset + + symref[idx]->merge.value); + + if (unlikely (symref[idx]->need_copy)) + { + /* Add a relocation to initialize the GOT entry. */ + assert (symref[idx]->outdynsymidx != 0); +#if NATIVE_ELF != 0 + xelf_getrel_ptr (reldyndata, nreldyn, rel2); +#else + rel2 = &rel_mem; +#endif + rel2->r_offset = value; + rel2->r_info + = XELF_R_INFO (symref[idx]->outdynsymidx, R_386_COPY); + (void) xelf_update_rel (reldyndata, nreldyn, rel2); + ++nreldyn; + + /* Update the symbol table record for the new + address. */ + Elf32_Word symidx = symref[idx]->outdynsymidx; + Elf_Scn *symscn = elf_getscn (statep->outelf, + statep->dynsymscnidx); + Elf_Data *outsymdata = elf_getdata (symscn, NULL); + assert (outsymdata != NULL); + XElf_Sym_vardef (sym); + xelf_getsym (outsymdata, symidx, sym); + sym->st_value = value; + sym->st_shndx = statep->copy_section->outscnndx; + (void) xelf_update_sym (outsymdata, symidx, sym); + + symidx = symref[idx]->outsymidx; + if (symidx != 0) + { + symidx = statep->dblindirect[symidx]; + symscn = elf_getscn (statep->outelf, + statep->symscnidx); + outsymdata = elf_getdata (symscn, NULL); + assert (outsymdata != NULL); + xelf_getsym (outsymdata, symidx, sym); + sym->st_value = value; + sym->st_shndx = statep->copy_section->outscnndx; + (void) xelf_update_sym (outsymdata, symidx, sym); + } + + /* Remember that we set up the copy relocation. */ + symref[idx]->need_copy = 0; + } + } + else if (statep->file_type == dso_file_type + && idx >= SCNINFO_SHDR (scninfo[rshdr->sh_link].shdr).sh_info + && symref[idx]->outdynsymidx != 0) + { +#if NATIVE_ELF != 0 + xelf_getrel_ptr (reldyndata, nreldyn, rel2); +#else + rel2 = &rel_mem; +#endif + rel2->r_offset = value; + rel2->r_info + = XELF_R_INFO (symref[idx]->outdynsymidx, R_386_32); + (void) xelf_update_rel (reldyndata, nreldyn, rel2); + ++nreldyn; + + value = 0; + } + add_4ubyte_unaligned (relloc, value); + break; + + case R_386_GOT32: + store_4ubyte_unaligned (relloc, ngot_used * sizeof (Elf32_Addr)); + + /* Add a relocation to initialize the GOT entry. */ +#if NATIVE_ELF != 0 + xelf_getrel_ptr (reldyndata, nreldyn, rel2); +#else + rel2 = &rel_mem; +#endif + rel2->r_offset = gotaddr + ngot_used * sizeof (Elf32_Addr); + rel2->r_info + = XELF_R_INFO (symref[idx]->outdynsymidx, R_386_GLOB_DAT); + (void) xelf_update_rel (reldyndata, nreldyn, rel2); + ++nreldyn; + break; + + case R_386_GOTOFF: + add_4ubyte_unaligned (relloc, value - gotaddr); + break; + + case R_386_32PLT: + case R_386_TLS_TPOFF: + case R_386_TLS_IE: + case R_386_TLS_GOTIE: + case R_386_TLS_LE: + case R_386_TLS_GD: + case R_386_TLS_LDM: + case R_386_16: + case R_386_PC16: + case R_386_8: + case R_386_PC8: + case R_386_TLS_GD_32: + case R_386_TLS_GD_PUSH: + case R_386_TLS_GD_CALL: + case R_386_TLS_GD_POP: + case R_386_TLS_LDM_32: + case R_386_TLS_LDM_PUSH: + case R_386_TLS_LDM_CALL: + case R_386_TLS_LDM_POP: + case R_386_TLS_LDO_32: + case R_386_TLS_IE_32: + case R_386_TLS_LE_32: + // XXX For now fall through + printf("ignored relocation %d\n", (int) XELF_R_TYPE (rel->r_info)); + break; + + case R_386_NONE: + /* Nothing to do. */ + break; + + case R_386_COPY: + case R_386_JMP_SLOT: + case R_386_RELATIVE: + case R_386_GLOB_DAT: + case R_386_TLS_DTPMOD32: + case R_386_TLS_DTPOFF32: + case R_386_TLS_TPOFF32: + default: + /* Should not happen. */ + abort (); + } + } + } + while ((runp = runp->next) != first); +} + + +int +elf_i386_ld_init (struct ld_state *statep) +{ + /* We have a few callbacks available. */ + old_open_outfile = statep->callbacks.open_outfile; + statep->callbacks.open_outfile = elf_i386_open_outfile; + + statep->callbacks.relocate_section = elf_i386_relocate_section; + + statep->callbacks.initialize_plt = elf_i386_initialize_plt; + statep->callbacks.initialize_pltrel = elf_i386_initialize_pltrel; + + statep->callbacks.initialize_got = elf_i386_initialize_got; + + statep->callbacks.finalize_plt = elf_i386_finalize_plt; + + statep->callbacks.rel_type = elf_i386_rel_type; + + statep->callbacks.count_relocations = elf_i386_count_relocations; + + statep->callbacks.create_relocations = elf_i386_create_relocations; + + return 0; +} diff --git a/src/ld.c b/src/ld.c new file mode 100644 index 0000000..2aece00 --- /dev/null +++ b/src/ld.c @@ -0,0 +1,1506 @@ +/* Copyright (C) 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include "ld.h" +#include "list.h" + + +/* Name and version of program. */ +static void print_version (FILE *stream, struct argp_state *state); +void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; + +/* Bug report address. */ +const char *argp_program_bug_address = PACKAGE_BUGREPORT; + + +/* Values for the various options. */ +enum + { + ARGP_whole_archive = 300, + ARGP_no_whole_archive, + ARGP_static, + ARGP_dynamic, + ARGP_pagesize, + ARGP_rpath, + ARGP_rpath_link, + ARGP_runpath, + ARGP_runpath_link, + ARGP_version_script, + ARGP_gc_sections, + ARGP_no_gc_sections, + ARGP_no_undefined, + ARGP_conserve, +#if YYDEBUG + ARGP_yydebug, +#endif + }; + + +/* Definitions of arguments for argp functions. */ +static const struct argp_option options[] = +{ + /* XXX This list will be reordered and section names will be added. + Just not right now. */ + { "whole-archive", ARGP_whole_archive, NULL, 0, + N_("Include whole archives in the output from now on."), 0 }, + { "no-whole-archive", ARGP_no_whole_archive, NULL, 0, + N_("Stop including the whole arhives in the output."), 0 }, + + { "output", 'o', N_("FILE"), 0, N_("Place output in FILE."), 0 }, + + { NULL, 'O', N_("LEVEL"), OPTION_ARG_OPTIONAL, + N_("Set optimization level to LEVEL."), 0 }, + + { "verbose", 'v', NULL, 0, N_("Verbose messages."), 0 }, + { "trace", 't', NULL, 0, N_("Trace file opens."), 0 }, + { "conserve-memory", ARGP_conserve, NULL, 0, + N_("Trade speed for less memory usage"), 0 }, + + { NULL, 'z', "KEYWORD", OPTION_HIDDEN, NULL, 0 }, + { "-z nodefaultlib", '\0', NULL, OPTION_DOC, + N_("Object is marked to not use default search path at runtime."), 0 }, + { "-z allextract", '\0', NULL, OPTION_DOC, + N_("Same as --whole-archive."), 0 }, + { "-z defaultextract", '\0', NULL, OPTION_DOC, N_("\ +Default rules of extracting from archive; weak references are not enough."), + 0 }, + { "-z weakextract", '\0', NULL, OPTION_DOC, + N_("Weak references cause extraction from archive."), 0 }, + { "-z muldefs", '\0', NULL, OPTION_DOC, + N_("Allow multiple definitions; first is used."), 0 }, + { "-z defs | nodefs", '\0', NULL, OPTION_DOC, + N_("Disallow/allow undefined symbols in DSOs."), 0 }, + { "no-undefined", ARGP_no_undefined, NULL, OPTION_HIDDEN, NULL, 0 }, + { "-z origin", '\0', NULL, OPTION_DOC, + N_("Object requires immediate handling of $ORIGIN."), 0 }, + { "-z now", '\0', NULL, OPTION_DOC, + N_("Relocation will not be processed lazily."), 0 }, + { "-z nodelete", '\0', NULL, OPTION_DOC, + N_("Object cannot be unloaded at runtime."), 0 }, + { "-z initfirst", '\0', NULL, OPTION_DOC, + N_("Mark object to be initialized first."), 0 }, + { "-z lazyload | nolazyload", '\0', NULL, OPTION_DOC, + N_("Enable/disable lazy-loading flag for following dependencies."), 0 }, + { "-z nodlopen", '\0', NULL, OPTION_DOC, + N_("Mark object as not loadable with 'dlopen'."), 0 }, + { "-z ignore | record", '\0', NULL, OPTION_DOC, + N_("Ignore/record dependencies on unused DSOs."), 0 }, + { "-z systemlibrary", '\0', NULL, OPTION_DOC, + N_("Generated DSO will be a system library."), 0 }, + + { NULL, 'l', N_("FILE"), OPTION_HIDDEN, NULL, 0 }, + + { NULL, '(', NULL, 0, N_("Start a group."), 0 }, + { NULL, ')', NULL, 0, N_("End a group."), 0 }, + + { NULL, 'L', N_("PATH"), 0, + N_("Add PATH to list of directories files are searched in."), 0 }, + + { NULL, 'c', N_("FILE"), 0, N_("Use linker script in FILE."), 0 }, + + { "entry", 'e', N_("ADDRESS"), 0, N_("Set entry point address."), 0 }, + + { "static", ARGP_static, NULL, OPTION_HIDDEN, NULL, 0 }, + { "-B static", ARGP_static, NULL, OPTION_DOC, + N_("Do not link against shared libraries."), 0 }, + { "dynamic", ARGP_dynamic, NULL, OPTION_HIDDEN, NULL, 0 }, + { "-B dynamic", ARGP_dynamic, NULL, OPTION_DOC, + N_("Prefer linking against shared libraries."), 0 }, + + { "export-dynamic", 'E', NULL, 0, N_("Export all dynamic symbols."), 0 }, + + { "strip-all", 's', NULL, 0, N_("Strip all symbols."), 0 }, + { "strip-debug", 'S', NULL, 0, N_("Strip debugging symbols."), 0 }, + + { "pagesize", ARGP_pagesize, "SIZE", 0, + N_("Assume pagesize for the target system to be SIZE."), 0 }, + + { "rpath", ARGP_rpath, "PATH", OPTION_HIDDEN, NULL, 0 }, + { "rpath-link", ARGP_rpath_link, "PATH", OPTION_HIDDEN, NULL, 0 }, + + { "runpath", ARGP_runpath, "PATH", 0, N_("Set runtime DSO search path."), + 0 }, + { "runpath-link", ARGP_runpath_link, "PATH", 0, + N_("Set link time DSO search path."), 0 }, + + { NULL, 'i', NULL, 0, N_("Ignore LD_LIBRARY_PATH environment variable."), + 0 }, + + { "version-script", ARGP_version_script, "FILE", 0, + N_("Read version information from FILE."), 0 }, + + { "emulation", 'm', "NAME", 0, N_("Set emulation to NAME."), 0 }, + + { "shared", 'G', NULL, 0, N_("Generate dynamic shared object."), 0 }, + { NULL, 'r', NULL, 0L, N_("Generate relocatable object."), 0 }, + + { NULL, 'B', "KEYWORD", OPTION_HIDDEN, "", 0 }, + { "-B local", 'B', NULL, OPTION_DOC, + N_("Causes symbol not assigned to a version be reduced to local."), 0 }, + + { "gc-sections", ARGP_gc_sections, NULL, 0, N_("Remove unused sections."), + 0 }, + { "no-gc-sections", ARGP_no_gc_sections, NULL, 0, + N_("Don't remove unused sections."), 0 }, + + { "soname", 'h', "NAME", 0, N_("Set soname of shared object."), 0 }, + { "dynamic-linker", 'I', "NAME", 0, N_("Set the dynamic linker name."), 0 }, + + { NULL, 'Q', "YN", OPTION_HIDDEN, NULL, 0 }, + { "-Q y | n", 'Q', NULL, OPTION_DOC, + N_("Add/suppress addition indentifying link-editor to .comment section"), + 0 }, + +#if YYDEBUG + { "yydebug", ARGP_yydebug, NULL, 0, + N_("Select to get parser debug information"), 0 }, +#endif + + { NULL, 0, NULL, 0, NULL, 0 } +}; + +/* Short description of program. */ +static const char doc[] = N_("Combine object and archive files."); + +/* Strings for arguments in help texts. */ +static const char args_doc[] = N_("[FILE]..."); + +/* Prototype for option handler. */ +static error_t parse_opt_1st (int key, char *arg, struct argp_state *state); +static error_t parse_opt_2nd (int key, char *arg, struct argp_state *state); + +/* Data structure to communicate with argp functions. */ +static struct argp argp_1st = +{ + options, parse_opt_1st, args_doc, doc, NULL, NULL, NULL +}; +static struct argp argp_2nd = +{ + options, parse_opt_2nd, args_doc, doc, NULL, NULL, NULL +}; + + +/* Linker state. This contains all global information. */ +struct ld_state ld_state; + +/* List of the input files. */ +static struct file_list +{ + const char *name; + struct file_list *next; +} *input_file_list; + +/* If nonzero be verbose. */ +int verbose; + +/* If nonzero, trade speed for less memory/address space usage. */ +int conserve_memory; + +/* The emulation name to use. */ +static const char *emulation; + +/* Keep track of the nesting level. Even though we don't handle nested + groups we still keep track to improve the error messages. */ +static int group_level; + +/* The last file we processed. */ +static struct usedfiles *last_file; + +/* The default linker script. */ +/* XXX We'll do this a bit different in the real solution. */ +static const char *linker_script = SRCDIR "/elf32-i386.script"; + +/* Nonzero if an error occurred while loading the input files. */ +static int error_loading; + + +/* Intermediate storage for the LD_LIBRARY_PATH information from the + environment. */ +static char *ld_library_path1; + +/* Flag used to communicate with the scanner. */ +int ld_scan_version_script; + +/* Name of the input file. */ +const char *ldin_fname; + +/* Define by parser if required. */ +extern int lddebug; + + +/* Prototypes for local functions. */ +static void parse_z_option (const char *arg); +static void parse_z_option_2 (const char *arg); +static void parse_B_option (const char *arg); +static void parse_B_option_2 (const char *arg); +static void determine_output_format (void); +static void load_needed (void); +static void collect_sections (void); +static void add_rxxpath (struct pathelement **pathp, const char *str); +static void gen_rxxpath_data (void); +static void read_version_script (const char *fname); +static void create_lscript_symbols (void); +static void create_special_section_symbol (struct symbol **symp, + const char *name); + + +int +main (int argc, char *argv[]) +{ + int remaining; + int err; + +#ifndef NDEBUG + /* Enable memory debugging. */ + mtrace (); +#endif + + /* Sanity check. We always want to use the LFS functionality. */ + if (sizeof (off_t) != sizeof (off64_t)) + abort (); + + /* We use no threads here which can interfere with handling a stream. */ + __fsetlocking (stdin, FSETLOCKING_BYCALLER); + __fsetlocking (stdout, FSETLOCKING_BYCALLER); + __fsetlocking (stderr, FSETLOCKING_BYCALLER); + + /* Set locale. */ + setlocale (LC_ALL, ""); + + /* Make sure the message catalog can be found. */ + bindtextdomain (PACKAGE, LOCALEDIR); + + /* Initialize the message catalog. */ + textdomain (PACKAGE); + + /* Before we start tell the ELF library which version we are using. */ + elf_version (EV_CURRENT); + + /* The user can use the LD_LIBRARY_PATH environment variable to add + additional lookup directories. */ + ld_library_path1 = getenv ("LD_LIBRARY_PATH"); + + /* Initialize the memory handling. */ +#define obstack_chunk_alloc xmalloc +#define obstack_chunk_free free + obstack_init (&ld_state.smem); + + /* One quick pass over the parameters which allows us to scan for options + with global effect which influence the rest of the processing. */ + argp_parse (&argp_1st, argc, argv, ARGP_IN_ORDER, &remaining, NULL); + + /* We need at least one input file. */ + if (input_file_list == NULL) + { + error (0, 0, gettext ("At least one input file needed")); + argp_help (&argp_1st, stderr, ARGP_HELP_SEE, "ld"); + exit (EXIT_FAILURE); + } + + /* Determine which ELF backend to use. */ + determine_output_format (); + + /* Prepare state. */ + err = ld_prepare_state (emulation); + if (err != 0) + error (EXIT_FAILURE, 0, gettext ("error while preparing linking")); + + /* XXX Read the linker script now. Since we later will have the linker + script built in we don't go into trouble to make sure we handle GROUP + statements in the script. This simply must not happen. */ + ldin = fopen (linker_script, "r"); + if (ldin == NULL) + error (EXIT_FAILURE, errno, gettext ("cannot open linker script \"%s\""), + linker_script); + /* No need for locking. */ + __fsetlocking (ldin, FSETLOCKING_BYCALLER); + + ld_state.srcfiles = NULL; + ldlineno = 1; + ld_scan_version_script = 0; + ldin_fname = linker_script; + if (ldparse () != 0) + /* Something went wrong during parsing. */ + exit (EXIT_FAILURE); + fclose (ldin); + + /* We now might have a list of directories to look for libraries in + named by the linker script. Put them in a different list so that + they are searched after all paths given by the user on the + command line. */ + ld_state.default_paths = ld_state.paths; + ld_state.paths = ld_state.tailpaths = NULL; + + /* Get runpath/rpath information in usable form. */ + gen_rxxpath_data (); + + /* Parse and process arguments for real. */ + argp_parse (&argp_2nd, argc, argv, ARGP_IN_ORDER, &remaining, NULL); + /* All options should have been processed by the argp parser. */ + assert (remaining == argc); + + /* Process the last file. */ + while (last_file != NULL) + /* Try to open the file. */ + error_loading |= FILE_PROCESS (-1, last_file, &ld_state, &last_file); + + /* Stop if there has been a problem while reading the input files. */ + if (error_loading) + exit (error_loading); + + /* See whether all opened -( were closed. */ + if (group_level > 0) + { + error (0, 0, gettext ("-( without matching -)")); + argp_help (&argp_1st, stderr, ARGP_HELP_SEE, "ld"); + exit (EXIT_FAILURE); + } + + /* When we create a relocatable file we don't have to look for the + DT_NEEDED DSOs and we also don't test for undefined symbols. */ + if (ld_state.file_type != relocatable_file_type) + { + /* At this point we have loaded all the direct dependencies. What + remains to be done is find the indirect dependencies. These are + DSOs which are referenced by the DT_NEEDED entries in the DSOs + which are direct dependencies. We have to transitively find and + load all these dependencies. */ + load_needed (); + + /* At this point all object files and DSOs are read. If there + are still undefined symbols left they might have to be + synthesized from the linker script. */ + create_lscript_symbols (); + + /* Now that we have loaded all the object files we can determine + whether we have any non-weak unresolved references left. If + there are any we stop. If the user used the '-z nodefs' option + and we are creating a DSO don't perform the tests. */ + if (FLAG_UNRESOLVED (&ld_state) != 0) + exit (1); + } + + /* Collect information about the relocations which will be carried + forward into the output. We have to do this here and now since + we need to know which sections have to be created. */ + if (ld_state.file_type != relocatable_file_type) + { + void *p ; + struct scnhead *h; + + p = NULL; + while ((h = ld_section_tab_iterate (&ld_state.section_tab, &p)) != NULL) + if (h->type == SHT_REL || h->type == SHT_RELA) + { + struct scninfo *runp = h->last; + do + { + /* If we are processing the relocations determine how + many will be in the output file. Also determine + how many GOT entries are needed. */ + COUNT_RELOCATIONS (&ld_state, runp); + + ld_state.relsize_total += runp->relsize; + } + while ((runp = runp->next) != h->last); + } + } + + /* Not part of the gABI, but part of every psABI: the symbols for the + GOT section. Add the symbol if necessary. */ + if (ld_state.need_got) + create_special_section_symbol (&ld_state.got_symbol, + "_GLOBAL_OFFSET_TABLE_"); + /* Similarly for the _DYNAMIC symbol which points to the dynamic + section. */ + if (dynamically_linked_p ()) + create_special_section_symbol (&ld_state.dyn_symbol, "_DYNAMIC"); + + /* We are ready to start working on the output file. Not all + information has been gather or created yet. This will be done as + we go. Open the file now. */ + if (OPEN_OUTFILE (&ld_state, EM_NONE, ELFCLASSNONE, ELFDATANONE) != 0) + exit (1); + + /* Create the sections which are generated by the linker and are not + present in the input file. The output file must already have + been opened since we need the ELF descriptor to deduce type + sizes. */ + GENERATE_SECTIONS (&ld_state); + + /* At this point we have read all the files and know all the + sections which have to be linked into the application. We do now + create an array listing all the sections. We will than pass this + array to a system specific function which can reorder it at will. + The functions can also merge sections if this is what is + wanted. */ + collect_sections (); + + /* Create the output sections now. This may requires sorting them + first. */ + CREATE_SECTIONS (&ld_state); + + /* Create the output file data. Appropriate code for the selected + output file type is called. */ + if (CREATE_OUTFILE (&ld_state) != 0) + exit (1); + + /* Finalize the output file, write the data out. */ + err |= FINALIZE (&ld_state); + + /* Return with an non-zero exit status also if any error message has + been printed. */ + return err | (error_message_count != 0); +} + + +/* Quick scan of the parameter list for options with global effect. */ +static error_t +parse_opt_1st (int key, char *arg, + struct argp_state *state __attribute__ ((unused))) +{ + switch (key) + { + case 'B': + parse_B_option (arg); + break; + + case 'c': + linker_script = arg; + break; + + case 'E': + ld_state.export_all_dynamic = true; + break; + + case 'G': + if (ld_state.file_type != no_file_type) + error (EXIT_FAILURE, 0, + gettext ("only one option of -G and -r is allowed")); + ld_state.file_type = dso_file_type; + + /* If we generate a DSO we have to export all symbols. */ + ld_state.export_all_dynamic = true; + break; + + case 'h': + ld_state.soname = arg; + break; + + case 'i': + /* Discard the LD_LIBRARY_PATH value we found. */ + ld_library_path1 = NULL; + break; + + case 'I': + ld_state.interp = arg; + break; + + case 'm': + if (emulation != NULL) + error (EXIT_FAILURE, 0, gettext ("more than one '-m' parameter")); + emulation = arg; + break; + + case 'Q': + if (arg[1] == '\0' && (arg[0] == 'y' || arg[0] == 'Y')) + ld_state.add_ld_comment = true; + else if (arg[1] == '\0' && (arg[0] == 'n' || arg[0] == 'N')) + ld_state.add_ld_comment = true; + else + error (EXIT_FAILURE, 0, gettext ("unknown option `-%c %s'"), 'Q', arg); + break; + + case 'r': + if (ld_state.file_type != no_file_type) + error (EXIT_FAILURE, 0, + gettext ("only one option of -G and -r is allowed")); + ld_state.file_type = relocatable_file_type; + break; + + case 'S': + ld_state.strip = strip_debug; + break; + + case 't': + ld_state.trace_files = true; + break; + + case 'v': + verbose = 1; + break; + + case 'z': + /* The SysV linker used 'z' to pass various flags to the linker. + We follow this. See 'parse_z_option' for the options we + recognize. */ + parse_z_option (arg); + break; + + case ARGP_pagesize: + { + char *endp; + ld_state.pagesize = strtoul (arg, &endp, 0); + if (*endp != '\0') + { + if (endp[1] == '\0' && tolower (*endp) == 'k') + ld_state.pagesize *= 1024; + else if (endp[1] == '\0' && tolower (*endp) == 'm') + ld_state.pagesize *= 1024 * 1024; + else + { + error (0, 0, + gettext ("invalid page size value \"%s\": ignored"), + arg); + ld_state.pagesize = 0; + } + } + } + break; + + case ARGP_rpath: + add_rxxpath (&ld_state.rpath, arg); + break; + + case ARGP_rpath_link: + add_rxxpath (&ld_state.rpath_link, arg); + break; + + case ARGP_runpath: + add_rxxpath (&ld_state.runpath, arg); + break; + + case ARGP_runpath_link: + add_rxxpath (&ld_state.runpath_link, arg); + break; + + case ARGP_gc_sections: + case ARGP_no_gc_sections: + ld_state.gc_sections = key == ARGP_gc_sections; + break; + + case 's': + if (arg == NULL) + { + if (ld_state.strip == strip_all) + ld_state.strip = strip_everything; + else + ld_state.strip = strip_all; + break; + } + /* FALLTHROUGH */ + + case 'e': + case 'o': + case 'O': + case ARGP_whole_archive: + case ARGP_no_whole_archive: + case 'L': + case '(': + case ')': + case 'l': + case ARGP_static: + case ARGP_dynamic: + case ARGP_version_script: + /* We'll handle these in the second pass. */ + break; + + case ARGP_KEY_ARG: + { + struct file_list *newp; + + newp = (struct file_list *) xmalloc (sizeof (struct file_list)); + newp->name = arg; +#ifndef NDEBUG + newp->next = NULL; +#endif + CSNGL_LIST_ADD_REAR (input_file_list, newp); + } + break; + +#if YYDEBUG + case ARGP_yydebug: + lddebug = 1; + break; +#endif + + case ARGP_no_undefined: + ld_state.nodefs = false; + break; + + case ARGP_conserve: + conserve_memory = 1; + break; + + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + + +/* Handle program arguments for real. */ +static error_t +parse_opt_2nd (int key, char *arg, + struct argp_state *state __attribute__ ((unused))) +{ + static bool group_start_requested; + static bool group_end_requested; + + switch (key) + { + case 'B': + parse_B_option_2 (arg); + break; + + case 'e': + ld_state.entry = arg; + break; + + case 'o': + if (ld_state.outfname != NULL) + { + error (0, 0, gettext ("More than one output file name given.")); + see_help: + argp_help (&argp_2nd, stderr, ARGP_HELP_SEE, "ld"); + exit (EXIT_FAILURE); + } + ld_state.outfname = arg; + break; + + case 'O': + if (arg == NULL) + ld_state.optlevel = 1; + else + { + char *endp; + unsigned long int level = strtoul (arg, &endp, 10); + if (*endp != '\0') + { + error (0, 0, gettext ("Invalid optimization level `%s'"), arg); + goto see_help; + } + ld_state.optlevel = level; + } + break; + + case ARGP_whole_archive: + ld_state.extract_rule = allextract; + break; + case ARGP_no_whole_archive: + ld_state.extract_rule = defaultextract; + break; + + case ARGP_static: + case ARGP_dynamic: + /* Enable/disable use for DSOs. */ + ld_state.statically = key == ARGP_static; + break; + + case 'z': + /* The SysV linker used 'z' to pass various flags to the linker. + We follow this. See 'parse_z_option' for the options we + recognize. */ + parse_z_option_2 (arg); + break; + + case ARGP_version_script: + read_version_script (arg); + break; + + case 'L': + /* Add a new search directory. */ + ld_new_searchdir (arg); + break; + + case '(': + /* Start a link group. We have to be able to determine the object + file which is named next. Do this by remembering a pointer to + the pointer which will point to the next object. */ + if (verbose && (group_start_requested || !group_end_requested)) + error (0, 0, gettext ("nested -( -) groups are not allowed")); + + /* Increment the nesting level. */ + ++group_level; + + /* Record group start. */ + group_start_requested = true; + group_end_requested = false; + break; + + case ')': + /* End a link group. If there is no group open this is clearly + a bug. If there is a group open insert a back reference + pointer in the record for the last object of the group. If + there is no new object or just one don't do anything. */ + if (!group_end_requested) + { + if (group_level == 0) + { + error (0, 0, gettext ("-) without matching -(")); + goto see_help; + } + } + else + last_file->group_end = true; + + if (group_level > 0) + --group_level; + break; + + case 'l': + case ARGP_KEY_ARG: + { + while (last_file != NULL) + /* Try to open the file. */ + error_loading |= FILE_PROCESS (-1, last_file, &ld_state, &last_file); + + last_file = ld_new_inputfile (arg, + key == 'l' + ? archive_file_type + : relocatable_file_type); + if (group_start_requested) + { + last_file->group_start = true; + + group_start_requested = false; + group_end_requested = true; + } + } + break; + + default: + /* We can catch all other options here. They either have + already been handled or, if the parameter was not correct, + the error has been reported. */ + break; + } + return 0; +} + + +/* Load all the DSOs named as dependencies in other DSOs we already + loaded. */ +static void +load_needed (void) +{ + struct usedfiles *first; + struct usedfiles *runp; + + /* XXX There is one problem here: do we allow references from + regular object files to be satisfied by these implicit + dependencies? The old linker allows this and several libraries + depend on this. Solaris' linker does not allow this; it provides + the user with a comprehensive error message explaining the + situation. + + XXX IMO the old ld behavior is correct since this is also how the + dynamic linker will work. It will look for unresolved references + in all loaded DSOs. + + XXX Should we add an option to get Solaris compatibility? */ + if (ld_state.needed == NULL) + return; + + runp = first = ld_state.needed->next; + do + { + struct usedfiles *ignore; + struct usedfiles *next = runp->next; + int err; + + err = FILE_PROCESS (-1, runp, &ld_state, &ignore); + if (err != 0) + /* Something went wrong. */ + exit (err); + + runp = next; + } + while (runp != first); +} + + +/* Print the version information. */ +static void +print_version (FILE *stream, struct argp_state *state __attribute__ ((unused))) +{ + fprintf (stream, "ld (%s) %s\n", PACKAGE_NAME, VERSION); + fprintf (stream, gettext ("\ +Copyright (C) %s Red Hat, Inc.\n\ +This is free software; see the source for copying conditions. There is NO\n\ +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ +"), "2005"); + fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); +} + + +/* There are a lot of -z options, parse them here. Some of them have + to be parsed in the first pass, others must be handled in the + second pass. */ +static void +parse_z_option (const char *arg) +{ + if (strcmp (arg, "nodefaultlib") == 0 + /* This is only meaningful if we create a DSO. */ + && ld_state.file_type == dso_file_type) + ld_state.dt_flags_1 |= DF_1_NODEFLIB; + else if (strcmp (arg, "muldefs") == 0) + ld_state.muldefs = true; + else if (strcmp (arg, "nodefs") == 0) + ld_state.nodefs = true; + else if (strcmp (arg, "defs") == 0) + ld_state.nodefs = false; + else if (strcmp (arg, "now") == 0) + /* We could also set the DF_1_NOW flag in DT_FLAGS_1 but this isn't + necessary. */ + ld_state.dt_flags |= DF_BIND_NOW; + else if (strcmp (arg, "origin") == 0) + /* We could also set the DF_1_ORIGIN flag in DT_FLAGS_1 but this isn't + necessary. */ + ld_state.dt_flags |= DF_ORIGIN; + else if (strcmp (arg, "nodelete") == 0 + /* This is only meaningful if we create a DSO. */ + && ld_state.file_type == dso_file_type) + ld_state.dt_flags_1 |= DF_1_NODELETE; + else if (strcmp (arg, "initfirst") == 0) + ld_state.dt_flags_1 |= DF_1_INITFIRST; + else if (strcmp (arg, "nodlopen") == 0 + /* This is only meaningful if we create a DSO. */ + && ld_state.file_type == dso_file_type) + ld_state.dt_flags_1 |= DF_1_NOOPEN; + else if (strcmp (arg, "ignore") == 0) + ld_state.ignore_unused_dsos = true; + else if (strcmp (arg, "record") == 0) + ld_state.ignore_unused_dsos = false; + else if (strcmp (arg, "systemlibrary") == 0) + ld_state.is_system_library = true; + else if (strcmp (arg, "allextract") != 0 + && strcmp (arg, "defaultextract") != 0 + && strcmp (arg, "weakextract") != 0 + && strcmp (arg, "lazyload") != 0 + && strcmp (arg, "nolazyload") != 0) + error (0, 0, gettext ("unknown option `-%c %s'"), 'z', arg); +} + + +static void +parse_z_option_2 (const char *arg) +{ + if (strcmp (arg, "allextract") == 0) + ld_state.extract_rule = allextract; + else if (strcmp (arg, "defaultextract") == 0) + ld_state.extract_rule = defaultextract; + else if (strcmp (arg, "weakextract") == 0) + ld_state.extract_rule = weakextract; + else if (strcmp (arg, "lazyload") == 0) + ld_state.lazyload = true; + else if (strcmp (arg, "nolazyload") == 0) + ld_state.lazyload = false; +} + + +/* There are a lot of -B options, parse them here. */ +static void +parse_B_option (const char *arg) +{ + if (strcmp (arg, "local") == 0) + ld_state.default_bind_local = true; + else if (strcmp (arg, "symbolic") != 0 + && strcmp (arg, "static") != 0 + && strcmp (arg, "dynamic") != 0) + error (0, 0, gettext ("unknown option '-%c %s'"), 'B', arg); +} + + +/* The same functionality, but called in the second pass over the + parameters. */ +static void +parse_B_option_2 (const char *arg) +{ + if (strcmp (arg, "static") == 0) + ld_state.statically = true; + else if (strcmp (arg, "dynamic") == 0) + ld_state.statically = false; + else if (strcmp (arg, "symbolic") == 0 + /* This is only meaningful if we create a DSO. */ + && ld_state.file_type == dso_file_type) + ld_state.dt_flags |= DF_SYMBOLIC; +} + + +static void +determine_output_format (void) +{ + /* First change the 'input_file_list' variable in a simple + single-linked list. */ + struct file_list *last = input_file_list; + input_file_list = input_file_list->next; + last->next = NULL; + + /* Determine the target configuration which we are supposed to use. + The user can use the '-m' option to select one. If this is + missing we are trying to load one file and determine the + architecture from that. */ + if (emulation != NULL) + { + ld_state.ebl = ebl_openbackend_emulation (emulation); + + assert (ld_state.ebl != NULL); + } + else + { + /* Find an ELF input file and let it determine the ELf backend. */ + struct file_list *runp = input_file_list; + + while (runp != NULL) + { + int fd = open (runp->name, O_RDONLY); + if (fd != -1) + { + int try (Elf *elf) + { + int result = 0; + + if (elf == NULL) + return 0; + + if (elf_kind (elf) == ELF_K_ELF) + { + /* We have an ELF file. We now can find out + what the output format should be. */ + XElf_Ehdr_vardef(ehdr); + + /* Get the ELF header of the object. */ + xelf_getehdr (elf, ehdr); + if (ehdr != NULL) + ld_state.ebl = + ebl_openbackend_machine (ehdr->e_machine); + + result = 1; + } + else if (elf_kind (elf) == ELF_K_AR) + { + /* Try the archive members. This could + potentially lead to wrong results if the + archive contains files for more than one + architecture. But this is the user's + problem. */ + Elf *subelf; + Elf_Cmd cmd = ELF_C_READ_MMAP; + + while ((subelf = elf_begin (fd, cmd, elf)) != NULL) + { + cmd = elf_next (subelf); + + if (try (subelf) != 0) + break; + } + } + + elf_end (elf); + + return result; + } + + if (try (elf_begin (fd, ELF_C_READ_MMAP, NULL)) != 0) + /* Found a file. */ + break; + } + + runp = runp->next; + } + + if (ld_state.ebl == NULL) + { + error (0, 0, gettext ("\ +could not find input file to determine output file format")); + error (EXIT_FAILURE, 0, gettext ("\ +try again with an appropriate '-m' parameter")); + } + } + + /* We don't need the list of input files anymore. The second run over + the parameters will handle them. */ + while (input_file_list != NULL) + { + struct file_list *oldp = input_file_list; + input_file_list = input_file_list->next; + free (oldp); + } + + /* We also know now what kind of file we are supposed to create. If + the user hasn't selected anythign we create and executable. */ + if (ld_state.file_type == no_file_type) + ld_state.file_type = executable_file_type; +} + +/* Add DIR to the list of directories searched for object files and + libraries. */ +void +ld_new_searchdir (const char *dir) +{ + struct pathelement *newpath; + + newpath = (struct pathelement *) + obstack_calloc (&ld_state.smem, sizeof (struct pathelement)); + + newpath->pname = dir; + + /* Enqueue the file. */ + if (ld_state.tailpaths == NULL) + ld_state.paths = ld_state.tailpaths = newpath; + else + { + ld_state.tailpaths->next = newpath; + ld_state.tailpaths = newpath; + } +} + + +struct usedfiles * +ld_new_inputfile (const char *fname, enum file_type type) +{ + struct usedfiles *newfile = (struct usedfiles *) + obstack_calloc (&ld_state.smem, sizeof (struct usedfiles)); + + newfile->soname = newfile->fname = newfile->rfname = fname; + newfile->file_type = type; + newfile->extract_rule = ld_state.extract_rule; + newfile->lazyload = ld_state.lazyload; + newfile->status = not_opened; + + return newfile; +} + + +/* Create an array listing all the sections. We will than pass this + array to a system specific function which can reorder it at will. + The functions can also merge sections if this is what is + wanted. */ +static void +collect_sections (void) +{ + void *p ; + struct scnhead *h; + size_t cnt; + + /* We have that many sections. At least for now. */ + ld_state.nallsections = ld_state.section_tab.filled; + + /* Allocate the array. We allocate one more entry than computed so + far since we might need a new section for the copy relocations. */ + ld_state.allsections = + (struct scnhead **) obstack_alloc (&ld_state.smem, + (ld_state.nallsections + 1) + * sizeof (struct scnhead *)); + + /* Fill the array. We rely here on the hash table iterator to + return the entries in the order they were added. */ + cnt = 0; + p = NULL; + while ((h = ld_section_tab_iterate (&ld_state.section_tab, &p)) != NULL) + { + struct scninfo *runp; + bool used = false; + + if (h->kind == scn_normal) + { + runp = h->last; + do + { + if (h->type == SHT_REL || h->type == SHT_RELA) + { + if (runp->used) + /* This is a relocation section. If the section + it is relocating is used in the result so must + the relocation section. */ + runp->used + = runp->fileinfo->scninfo[SCNINFO_SHDR (runp->shdr).sh_info].used; + } + + /* Accumulate the result. */ + used |= runp->used; + + /* Next input section. */ + runp = runp->next; + } + while (runp != h->last); + + h->used = used; + } + + ld_state.allsections[cnt++] = h; + } + ld_state.nusedsections = cnt; + + assert (cnt == ld_state.nallsections); +} + + +/* Add given path to the end of list. */ +static void +add_rxxpath (struct pathelement **pathp, const char *str) +{ + struct pathelement *newp; + + /* The path elements can in theory be freed after we read all the + files. But the amount of memory we are talking about is small + and the cost of free() calls is not neglectable. */ + newp = (struct pathelement *) obstack_alloc (&ld_state.smem, sizeof (*newp)); + newp->pname = str; + newp->exist = 0; +#ifndef NDEBUG + newp->next = NULL; +#endif + + CSNGL_LIST_ADD_REAR (*pathp, newp); +} + + +/* Convert lists of possibly colon-separated directory lists into lists + where each entry is for a single directory. */ +static void +normalize_dirlist (struct pathelement **pathp) +{ + struct pathelement *firstp = *pathp; + + do + { + const char *pname = (*pathp)->pname; + const char *colonp = strchrnul (pname, ':'); + + if (colonp != NULL) + { + struct pathelement *lastp = *pathp; + struct pathelement *newp; + + while (1) + { + if (colonp == pname) + lastp->pname = "."; + else + lastp->pname = obstack_strndup (&ld_state.smem, pname, + colonp - pname); + + if (*colonp == '\0') + break; + pname = colonp + 1; + + newp = (struct pathelement *) obstack_alloc (&ld_state.smem, + sizeof (*newp)); + newp->next = lastp->next; + newp->exist = 0; + lastp = lastp->next = newp; + + colonp = strchrnul (pname, ':'); + } + + pathp = &lastp->next; + } + else + pathp = &(*pathp)->next; + } + while (*pathp != firstp); +} + + +/* Called after all parameters are parsed to bring the runpath/rpath + information into a usable form. */ +static void +gen_rxxpath_data (void) +{ + char *ld_library_path2; + + /* Convert the information in true single-linked lists for easy use. + At this point we also discard the rpath information if runpath + information is provided. rpath is deprecated and should not be + used (or ever be invented for that matter). */ + if (ld_state.rpath != NULL) + { + struct pathelement *endp = ld_state.rpath; + ld_state.rpath = ld_state.rpath->next; + endp->next = NULL; + } + if (ld_state.rpath_link != NULL) + { + struct pathelement *endp = ld_state.rpath_link; + ld_state.rpath_link = ld_state.rpath_link->next; + endp->next = NULL; + } + + if (ld_state.runpath != NULL) + { + struct pathelement *endp = ld_state.runpath; + ld_state.runpath = ld_state.runpath->next; + endp->next = NULL; + + /* If rpath information is also available discard it. + XXX Should there be a possibility to avoid this? */ + while (ld_state.rpath != NULL) + { + struct pathelement *old = ld_state.rpath; + ld_state.rpath = ld_state.rpath->next; + free (old); + } + } + if (ld_state.runpath_link != NULL) + { + struct pathelement *endp = ld_state.runpath_link; + ld_state.runpath_link = ld_state.runpath_link->next; + endp->next = NULL; + + /* If rpath information is also available discard it. + XXX Should there be a possibility to avoid this? */ + while (ld_state.rpath_link != NULL) + { + struct pathelement *old = ld_state.rpath_link; + ld_state.rpath_link = ld_state.rpath_link->next; + free (old); + } + + /* The information in the strings in the list can actually be + directory lists themselves, with entries separated by colons. + Convert the list now to a list with one list entry for each + directory. */ + normalize_dirlist (&ld_state.runpath_link); + } + else if (ld_state.rpath_link != NULL) + /* Same as for the runpath_link above. */ + normalize_dirlist (&ld_state.rpath_link); + + + /* As a related task, handle the LD_LIBRARY_PATH value here. First + we have to possibly split the value found (if it contains a + semicolon). Then we have to split the value in list of + directories, i.e., split at the colons. */ + if (ld_library_path1 != NULL) + { + ld_library_path2 = strchr (ld_library_path1, ';'); + if (ld_library_path2 == NULL) + { + /* If no semicolon is present the directories are looked at + after the -L parameters (-> ld_library_path2). */ + ld_library_path2 = ld_library_path1; + ld_library_path1 = NULL; + } + else + { + /* NUL terminate the first part. */ + *ld_library_path2++ = '\0'; + + /* Convert the string value in a list. */ + add_rxxpath (&ld_state.ld_library_path1, ld_library_path1); + normalize_dirlist (&ld_state.ld_library_path1); + } + + add_rxxpath (&ld_state.ld_library_path2, ld_library_path2); + normalize_dirlist (&ld_state.ld_library_path2); + } +} + + +static void +read_version_script (const char *fname) +{ + /* Open the file. The name is supposed to be the complete (relative + or absolute) path. No search along a path will be performed. */ + ldin = fopen (fname, "r"); + if (ldin == NULL) + error (EXIT_FAILURE, errno, gettext ("cannot read version script \"%s\""), + fname); + /* No need for locking. */ + __fsetlocking (ldin, FSETLOCKING_BYCALLER); + + /* Tell the parser that this is a version script. */ + ld_scan_version_script = 1; + + ldlineno = 1; + ldin_fname = fname; + if (ldparse () != 0) + /* Something went wrong during parsing. */ + exit (EXIT_FAILURE); + + fclose (ldin); +} + + +static void +create_lscript_symbols (void) +{ + /* Walk through the data from the linker script and generate all the + symbols which are required to be present and and those marked + with PROVIDE if there is a undefined reference. */ + if (ld_state.output_segments == NULL) + return; + + struct output_segment *segment = ld_state.output_segments->next; + do + { + struct output_rule *orule; + + for (orule = segment->output_rules; orule != NULL; orule = orule->next) + if (orule->tag == output_assignment + /* The assignments to "." (i.e., the PC) have to be + ignored here. */ + && strcmp (orule->val.assignment->variable, ".") != 0) + { + struct symbol *s = ld_state.unresolved; + + /* Check whether the symbol is needed. */ + if (likely (s != NULL)) + { + struct symbol *first = s; + const char *providename = orule->val.assignment->variable; + + /* Determine whether the provided symbol is still + undefined. */ + // XXX TODO Loop inside a loop. Gag! Must rewrite. */ + do + if (strcmp (s->name, providename) == 0) + { + /* Not defined but referenced. */ + if (unlikely (!s->defined)) + { + /* Put on the list of symbols. First remove it from + whatever list it currently is on. */ + CDBL_LIST_DEL (ld_state.unresolved, s); + --ld_state.nunresolved; + goto use_it; + } + + if (unlikely (!orule->val.assignment->provide_flag)) + { + /* The symbol is already defined and now again + in the linker script. This is an error. */ + error (0, 0, gettext ("\ +duplicate definition of '%s' in linker script"), + providename); + goto next_rule; + } + } + while ((s = s->next) != first); + } + + /* If the symbol only has to be provided if it is needed, + ignore it here since it is not undefined. */ + if (orule->val.assignment->provide_flag) + continue; + + /* Allocate memory for this new symbol. */ + s = (struct symbol *) + obstack_calloc (&ld_state.smem, sizeof (struct symbol)); + + /* Initialize it. */ + s->name = orule->val.assignment->variable; + + /* Insert it into the symbol hash table. */ + unsigned long int hval = elf_hash (s->name); + if (unlikely (ld_symbol_tab_insert (&ld_state.symbol_tab, + hval, s) != 0)) + { + /* This means the symbol is defined somewhere else. + Maybe it comes from a DSO or so. Get the + definition. */ + free (s); + struct symbol *old = ld_symbol_tab_find (&ld_state.symbol_tab, + hval, s); + assert (old != NULL); + free (s); + + /* If this is a definition from the application itself + this means a duplicate definition. */ + if (! old->in_dso) + { + error (0, 0, gettext ("\ +duplicate definition of '%s' in linker script"), + s->name); + goto next_rule; + } + + /* We use the definition from the linker script. */ + s = old; + } + + use_it: + /* The symbol is (now) defined. */ + s->defined = 1; + s->type = STT_NOTYPE; + + /* Add a reference to the symbol record. We will come + across it when creating the output file. */ + orule->val.assignment->sym = s; + + SNGL_LIST_PUSH (ld_state.lscript_syms, s); + ++ld_state.nlscript_syms; + + next_rule: + ; + } + + segment = segment->next; + } + while (segment != ld_state.output_segments->next); +} + + +/* Create creation of spection section symbols representing sections in the + output file. This is done for symbols like _GLOBAL_OFFSET_TABLE_ and + _DYNAMIC. */ +static void +create_special_section_symbol (struct symbol **symp, const char *name) +{ + if (*symp == NULL) + { + /* No symbol defined found yet. Create one. */ + struct symbol *newsym = (struct symbol *) + obstack_calloc (&ld_state.smem, sizeof (*newsym)); + + newsym->name = name; + // XXX Should we mark the symbol hidden? They are hardly useful + // used outside the current object. + + /* Add to the symbol table. */ + if (unlikely (ld_symbol_tab_insert (&ld_state.symbol_tab, + elf_hash (name), newsym) != 0)) + abort (); + + *symp = newsym; + } + else if ((*symp)->defined) + /* Cannot happen. We do use this symbol from any input file. */ + abort (); + + (*symp)->defined = 1; + (*symp)->type = STT_OBJECT; + + ++ld_state.nsymtab; +} diff --git a/src/ld.h b/src/ld.h new file mode 100644 index 0000000..a463a18 --- /dev/null +++ b/src/ld.h @@ -0,0 +1,1074 @@ +/* Copyright (C) 2001, 2002, 2003, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef LD_H +#define LD_H 1 + +#include +#include +#include +#include +#include "xelf.h" + + +/* Recommended size of the buffer passed to ld_strerror. */ +#define ERRBUFSIZE (512) + +/* Character used to introduce version name after symbol. */ +#define VER_CHR '@' + + +/* Methods for handling archives. */ +enum extract_rule + { + defaultextract, /* Weak references don't cause archive member to + be used. */ + weakextract, /* Weak references cause archive member to be + extracted. */ + allextract /* Extract all archive members regardless of + references (aka whole-archive). */ + }; + + +/* Type of output file. */ +enum file_type + { + no_file_type = 0, /* None selected so far. */ + executable_file_type, /* Executable. */ + dso_file_type, /* DSO. */ + dso_needed_file_type, /* DSO introduced by DT_NEEDED. */ + relocatable_file_type, /* Relocatable object file. */ + archive_file_type /* Archive (input only). */ + }; + + +struct usedfiles +{ + /* The next file given at the command line. */ + struct usedfiles *next; + /* Nonzero if this file is the beginning of a group. */ + bool group_start; + /* Nonzero if this file is the end of a group. */ + bool group_end; + /* Pointer to the beginning of the group. It is necessary to + explain why we cannot simply use the 'next' pointer and have a + circular single-linked list like in many cases. The problem is + that the last archive of the group, if it is the last file of the + group, contains the only existing pointer to the next file we + have to look at. All files are initially connected via the + 'next' pointer in a single-linked list. Therefore we cannot + overwrite this value. It instead will be used once the group is + handled and we go on processing the rest of the files. */ + struct usedfiles *group_backref; + + /* Name/path of the file. */ + const char *fname; + /* Resolved file name. */ + const char *rfname; + /* Name used as reference in DT_NEEDED entries. This is normally + the SONAME. If it is missing it's normally the fname above. */ + const char *soname; + /* Handle for the SONAME in the string table. */ + struct Ebl_Strent *sonameent; + + /* Help to identify duplicates. */ + dev_t dev; + ino_t ino; + + enum + { + not_opened, + opened, + in_archive, + closed + } status; + + /* How to extract elements from archives. */ + enum extract_rule extract_rule; + + /* Lazy-loading rule. */ + bool lazyload; + + /* If this is a DSO the flag indicates whether the file is directly + used in a reference. */ + bool used; + + /* If nonzero this is the archive sequence number which can be used to + determine whether back refernces from -( -) or GROUP statements + have to be followed. */ + int archive_seq; + + /* Pointer to the record for the archive containing this file. */ + struct usedfiles *archive_file; + + /* Type of file. We have to distinguish these types since they + are searched for differently. */ + enum file_type file_type; + /* This is the ELF library handle for this file. */ + Elf *elf; + + /* The ELF header. */ +#if NATIVE_ELF != 0 + XElf_Ehdr *ehdr; +# define FILEINFO_EHDR(fi) (*(fi)) +#else + XElf_Ehdr ehdr; +# define FILEINFO_EHDR(fi) (fi) +#endif + + /* Index of the section header string table section. We use a + separate field and not the e_shstrndx field in the ELF header + since in case of a file with more than 64000 sections the index + might be stored in the section header of section zero. The + elf_getshstrndx() function can find the value but it is too + costly to repeat this call over and over. */ + size_t shstrndx; + + /* Info about the sections of the file. */ + struct scninfo + { + /* Handle for the section. Note that we can store a section + handle here because the file is not changing. This together + with the knowledge about the libelf library is enough for us to + assume the section reference remains valid at all times. */ + Elf_Scn *scn; + /* Section header. */ +#if NATIVE_ELF != 0 + XElf_Shdr *shdr; +# define SCNINFO_SHDR(si) (*(si)) +#else + XElf_Shdr shdr; +# define SCNINFO_SHDR(si) (si) +#endif + /* Offset of this files section in the combined section. */ + XElf_Off offset; + /* Index of the section in the output file. */ + Elf32_Word outscnndx; + /* Index of the output section in the 'allsection' array. */ + Elf32_Word allsectionsidx; + /* True if the section is used. */ + bool used; + /* Section group number. This is the index of the SHT_GROUP section. */ + Elf32_Word grpid; + /* Pointer back to the containing file information structure. */ + struct usedfiles *fileinfo; + /* List of symbols in this section (set only for merge-able sections). */ + struct symbol *symbols; + /* Size of relocations in this section. Only used for relocation + sections. */ + size_t relsize; + /* Pointer to next section which is put in the given output + section. */ + struct scninfo *next; + } *scninfo; + + /* List of section group sections. */ + struct scninfo *groups; + + /* The symbol table section. + + XXX Maybe support for more than one symbol table is needed. */ + Elf_Data *symtabdata; + /* Extra section index table section. */ + Elf_Data *xndxdata; + /* Dynamic symbol table section. */ + Elf_Data *dynsymtabdata; + /* The version number section. */ + Elf_Data *versymdata; + /* The defined versions. */ + Elf_Data *verdefdata; + /* Number of versions defined. */ + size_t nverdef; + /* True if the version with the given index number is used in the + output. */ + XElf_Versym *verdefused; + /* How many versions are used. */ + size_t nverdefused; + /* Handle for name of the version. */ + struct Ebl_Strent **verdefent; + /* The needed versions. */ + Elf_Data *verneeddata; + /* String table section associated with the symbol table. */ + Elf32_Word symstridx; + /* String table section associated with the dynamic symbol table. */ + Elf32_Word dynsymstridx; + /* Number of entries in the symbol table. */ + size_t nsymtab; + size_t nlocalsymbols; + size_t ndynsymtab; + /* Dynamic section. */ + Elf_Scn *dynscn; + + /* Indirection table for the symbols defined here. */ + Elf32_Word *symindirect; + Elf32_Word *dynsymindirect; + /* For undefined or common symbols we need a reference to the symbol + record. */ + struct symbol **symref; + struct symbol **dynsymref; + + /* This is the file descriptor. The value is -1 if the descriptor + was already closed. This can happen if we needed file descriptors + to open new files. */ + int fd; + /* This flag is true if the descriptor was passed to the generic + functions from somewhere else. This is an implementation detail; + no machine-specific code must use this flag. */ + bool fd_passed; + + /* True if any of the sections is merge-able. */ + bool has_merge_sections; +}; + + +/* Functions to test for the various types of files we handle. */ +static inline int +ld_file_rel_p (struct usedfiles *file) +{ + return (elf_kind (file->elf) == ELF_K_ELF + && FILEINFO_EHDR (file->ehdr).e_type == ET_REL); +} + +static inline int +ld_file_dso_p (struct usedfiles *file) +{ + return (elf_kind (file->elf) == ELF_K_ELF + && FILEINFO_EHDR (file->ehdr).e_type == ET_DYN); +} + +static inline int +ld_file_ar_p (struct usedfiles *file) +{ + return elf_kind (file->elf) == ELF_K_AR; +} + + +struct pathelement +{ + /* The next path to search. */ + struct pathelement *next; + /* The path name. */ + const char *pname; + /* Larger than zero if the directory exists, smaller than zero if not, + zero if it is not yet known. */ + int exist; +}; + + +/* Forward declaration. */ +struct ld_state; + + +/* Callback functions. */ +struct callbacks +{ + /* Library names passed to the linker as -lXXX represent files named + libXXX.YY. The YY part can have different forms, depending on the + architecture. The generic set is .so and .a (in this order). */ + const char **(*lib_extensions) (struct ld_state *) + __attribute__ ((__const__)); +#define LIB_EXTENSION(state) \ + DL_CALL_FCT ((state)->callbacks.lib_extensions, (state)) + + /* Process the given file. If the file is not yet open, open it. + The first parameter is a file descriptor for the file which can + be -1 to indicate the file has not yet been found. The second + parameter describes the file to be opened, the last one is the + state of the linker which among other information contain the + paths we look at.*/ + int (*file_process) (int fd, struct usedfiles *, struct ld_state *, + struct usedfiles **); +#define FILE_PROCESS(fd, file, state, nextp) \ + DL_CALL_FCT ((state)->callbacks.file_process, (fd, file, state, nextp)) + + /* Close the given file. */ + int (*file_close) (struct usedfiles *, struct ld_state *); +#define FILE_CLOSE(file, state) \ + DL_CALL_FCT ((state)->callbacks.file_close, (file, state)) + + /* Create the output sections now. This requires knowledge about + all the sections we will need. It may be necessary to sort the + sections in the order they are supposed to appear in the + executable. The sorting use many different kinds of information + to optimize the resulting binary. Important is to respect + segment boundaries and the needed alignment. The mode of the + segments will be determined afterwards automatically by the + output routines. */ + void (*create_sections) (struct ld_state *); +#define CREATE_SECTIONS(state) \ + DL_CALL_FCT ((state)->callbacks.create_sections, (state)) + + /* Determine whether we have any non-weak unresolved references left. */ + int (*flag_unresolved) (struct ld_state *); +#define FLAG_UNRESOLVED(state) \ + DL_CALL_FCT ((state)->callbacks.flag_unresolved, (state)) + + /* Create the sections which are generated by the linker and are not + present in the input file. */ + void (*generate_sections) (struct ld_state *); +#define GENERATE_SECTIONS(state) \ + DL_CALL_FCT ((state)->callbacks.generate_sections, (state)) + + /* Open the output file. The file name is given or "a.out". We + create as much of the ELF structure as possible. */ + int (*open_outfile) (struct ld_state *, int, int, int); +#define OPEN_OUTFILE(state, machine, class, data) \ + DL_CALL_FCT ((state)->callbacks.open_outfile, (state, machine, class, data)) + + /* Create the data for the output file. */ + int (*create_outfile) (struct ld_state *); +#define CREATE_OUTFILE(state) \ + DL_CALL_FCT ((state)->callbacks.create_outfile, (state)) + + /* Process a relocation section. */ + void (*relocate_section) (struct ld_state *, Elf_Scn *, struct scninfo *, + const Elf32_Word *); +#define RELOCATE_SECTION(state, outscn, first, dblindirect) \ + DL_CALL_FCT ((state)->callbacks.relocate_section, (state, outscn, first, \ + dblindirect)) + + /* Allocate a data buffer for the relocations of the given output + section. */ + void (*count_relocations) (struct ld_state *, struct scninfo *); +#define COUNT_RELOCATIONS(state, scninfo) \ + DL_CALL_FCT ((state)->callbacks.count_relocations, (state, scninfo)) + + /* Create relocations for executable or DSO. */ + void (*create_relocations) (struct ld_state *, const Elf32_Word *); +#define CREATE_RELOCATIONS(state, dlbindirect) \ + DL_CALL_FCT ((state)->callbacks.create_relocations, (state, dblindirect)) + + /* Finalize the output file. */ + int (*finalize) (struct ld_state *); +#define FINALIZE(state) \ + DL_CALL_FCT ((state)->callbacks.finalize, (state)) + + /* Check whether special section number is known. */ + bool (*special_section_number_p) (struct ld_state *, size_t); +#define SPECIAL_SECTION_NUMBER_P(state, number) \ + DL_CALL_FCT ((state)->callbacks.special_section_number_p, (state, number)) + + /* Check whether section type is known. */ + bool (*section_type_p) (struct ld_state *, XElf_Word); +#define SECTION_TYPE_P(state, type) \ + DL_CALL_FCT ((state)->callbacks.section_type_p, (state, type)) + + /* Return section flags for .dynamic section. */ + XElf_Xword (*dynamic_section_flags) (struct ld_state *); +#define DYNAMIC_SECTION_FLAGS(state) \ + DL_CALL_FCT ((state)->callbacks.dynamic_section_flags, (state)) + + /* Create the data structures for the .plt section and initialize it. */ + void (*initialize_plt) (struct ld_state *, Elf_Scn *scn); +#define INITIALIZE_PLT(state, scn) \ + DL_CALL_FCT ((state)->callbacks.initialize_plt, (state, scn)) + + /* Create the data structures for the .rel.plt section and initialize it. */ + void (*initialize_pltrel) (struct ld_state *, Elf_Scn *scn); +#define INITIALIZE_PLTREL(state, scn) \ + DL_CALL_FCT ((state)->callbacks.initialize_pltrel, (state, scn)) + + /* Finalize the .plt section the what belongs to them. */ + void (*finalize_plt) (struct ld_state *, size_t, size_t); +#define FINALIZE_PLT(state, nsym, nsym_dyn) \ + DL_CALL_FCT ((state)->callbacks.finalize_plt, (state, nsym, nsym_dyn)) + + /* Create the data structures for the .got section and initialize it. */ + void (*initialize_got) (struct ld_state *, Elf_Scn *scn); +#define INITIALIZE_GOT(state, scn) \ + DL_CALL_FCT ((state)->callbacks.initialize_got, (state, scn)) + + /* Return the tag corresponding to the native relocation type for + the platform. */ + int (*rel_type) (struct ld_state *); +#define REL_TYPE(state) \ + DL_CALL_FCT ((state)->callbacks.rel_type, (state)) +}; + + +/* Structure for symbol representation. This data structure is used a + lot, so size is important. */ +struct symbol +{ + /* Symbol name. */ + const char *name; + /* Size of the object. */ + XElf_Xword size; + /* Index of the symbol in the symbol table of the object. */ + size_t symidx; + /* Index of the symbol in the symbol table of the output file. */ + size_t outsymidx; + + /* Description where the symbol is found/needed. */ + size_t scndx; + struct usedfiles *file; + /* Index of the symbol table. */ + Elf32_Word symscndx; + + /* Index of the symbol in the dynamic symbol table of the output + file. Note that the value only needs to be 16 bit wide since + there cannot be more sections in an executable or DSO. */ + unsigned int outdynsymidx:16; + + /* Type of the symbol. */ + unsigned int type:4; + /* Various flags. */ + unsigned int defined:1; + unsigned int common:1; + unsigned int weak:1; + unsigned int added:1; + unsigned int merged:1; + /* Nonzero if the symbol is on the from_dso list. */ + unsigned int on_dsolist:1; + /* Nonzero if symbol needs copy relocation, reset when the + relocation has been created. */ + unsigned int need_copy:1; + unsigned int in_dso:1; + + union + { + /* Pointer to the handle created by the functions which create + merged section contents. We use 'void *' because there are + different implementations used. */ + void *handle; + XElf_Addr value; + } merge; + + /* Pointer to next/previous symbol on whatever list the symbol is. */ + struct symbol *next; + struct symbol *previous; + /* Pointer to next symbol of the same section (only set for merge-able + sections). */ + struct symbol *next_in_scn; +}; + + +/* Get the definition for the symbol table. */ +#include + +/* Simple single linked list of file names. */ +struct filename_list +{ + const char *name; + struct usedfiles *real; + struct filename_list *next; + bool group_start; + bool group_end; + bool as_needed; +}; + + +/* Data structure to describe expression in linker script. */ +struct expression +{ + enum expression_tag + { + exp_num, + exp_sizeof_headers, + exp_pagesize, + exp_id, + exp_mult, + exp_div, + exp_mod, + exp_plus, + exp_minus, + exp_and, + exp_or, + exp_align + } tag; + + union + { + uintmax_t num; + struct expression *child; + struct + { + struct expression *left; + struct expression *right; + } binary; + const char *str; + } val; +}; + + +/* Data structure for section name with flags. */ +struct input_section_name +{ + const char *name; + bool sort_flag; +}; + +/* File name mask with section name. */ +struct filemask_section_name +{ + const char *filemask; + const char *excludemask; + struct input_section_name *section_name; + bool keep_flag; +}; + +/* Data structure for assignments. */ +struct assignment +{ + const char *variable; + struct expression *expression; + struct symbol *sym; + bool provide_flag; +}; + + +/* Data structure describing input for an output section. */ +struct input_rule +{ + enum + { + input_section, + input_assignment + } tag; + + union + { + struct assignment *assignment; + struct filemask_section_name *section; + } val; + + struct input_rule *next; +}; + + +/* Data structure to describe output section. */ +struct output_section +{ + const char *name; + struct input_rule *input; + XElf_Addr max_alignment; + bool ignored; +}; + + +/* Data structure to describe output file format. */ +struct output_rule +{ + enum + { + output_section, + output_assignment + } tag; + + union + { + struct assignment *assignment; + struct output_section section; + } val; + + struct output_rule *next; +}; + + +/* List of all the segments the linker script describes. */ +struct output_segment +{ + int mode; + struct output_rule *output_rules; + struct output_segment *next; + + XElf_Off offset; + XElf_Addr addr; + XElf_Xword align; +}; + + +/* List of identifiers. */ +struct id_list +{ + union + { + enum id_type + { + id_str, /* Normal string. */ + id_all, /* "*", matches all. */ + id_wild /* Globbing wildcard string. */ + } id_type; + struct + { + bool local; + const char *versionname; + } s; + } u; + const char *id; + struct id_list *next; +}; + + +/* Version information. */ +struct version +{ + struct version *next; + struct id_list *local_names; + struct id_list *global_names; + const char *versionname; + const char *parentname; +}; + + +/* Head for list of sections. */ +struct scnhead +{ + /* Name of the sections. */ + const char *name; + + /* Accumulated flags for the sections. */ + XElf_Xword flags; + + /* Type of the sections. */ + XElf_Word type; + + /* Entry size. If there are differencs between the sections with + the same name this field contains 1. */ + XElf_Word entsize; + + /* If non-NULL pointer to group signature. */ + const char *grp_signature; + + /* Maximum alignment for all sections. */ + XElf_Word align; + + /* Distinguish between normal sections coming from the input file + and sections generated by the linker. */ + enum scn_kind + { + scn_normal, /* Section from the input file(s). */ + scn_dot_interp, /* Generated .interp section. */ + scn_dot_got, /* Generated .got section. */ + scn_dot_dynrel, /* Generated .rel.dyn section. */ + scn_dot_dynamic, /* Generated .dynamic section. */ + scn_dot_dynsym, /* Generated .dynsym section. */ + scn_dot_dynstr, /* Generated .dynstr section. */ + scn_dot_hash, /* Generated .hash section. */ + scn_dot_plt, /* Generated .plt section. */ + scn_dot_pltrel, /* Generated .rel.plt section. */ + scn_dot_version, /* Generated .gnu.version section. */ + scn_dot_version_r /* Generated .gnu.version_r section. */ + } kind; + + /* True is the section is used in the output. */ + bool used; + + /* Total size (only determined this way for relocation sections). */ + size_t relsize; + + /* Filled in by the section sorting to indicate which segment the + section goes in. */ + int segment_nr; + + /* Index of the output section. We cannot store the section handle + directly here since the handle is a pointer in a dynamically + allocated table which might move if it becomes too small for all + the sections. Using the index the correct value can be found at + all times. */ + XElf_Word scnidx; + + /* Index of the STT_SECTION entry for this section in the symbol + table. */ + XElf_Word scnsymidx; + + /* Address of the section in the output file. */ + XElf_Addr addr; + + /* Handle for the section name in the output file's section header + string table. */ + struct Ebl_Strent *nameent; + + /* Tail of list of symbols for this section. Only set if the + section is merge-able. */ + struct symbol *symbols; + + /* Pointer to last section. */ + struct scninfo *last; +}; + + +/* Define hash table for sections. */ +#include + +/* Define hash table for version symbols. */ +#include + + +/* State of the linker. */ +struct ld_state +{ + /* ELF backend library handle. */ + Ebl *ebl; + + /* List of all archives participating, in this order. */ + struct usedfiles *archives; + /* End of the list. */ + struct usedfiles *tailarchives; + /* If nonzero we are looking for the beginning of a group. */ + bool group_start_requested; + /* Pointer to the archive starting the group. */ + struct usedfiles *group_start_archive; + + /* List of the DSOs we found. */ + struct usedfiles *dsofiles; + /* Number of DSO files. */ + size_t ndsofiles; + /* Ultimate list of object files which are linked in. */ + struct usedfiles *relfiles; + + /* List the DT_NEEDED DSOs. */ + struct usedfiles *needed; + + /* Temporary storage for the parser. */ + struct filename_list *srcfiles; + + /* List of all the paths to look at. */ + struct pathelement *paths; + /* Tail of the list. */ + struct pathelement *tailpaths; + + /* User provided paths for lookup of DSOs. */ + struct pathelement *rpath; + struct pathelement *rpath_link; + struct pathelement *runpath; + struct pathelement *runpath_link; + struct Ebl_Strent *rxxpath_strent; + int rxxpath_tag; + + /* From the environment variable LD_LIBRARY_PATH. */ + struct pathelement *ld_library_path1; + struct pathelement *ld_library_path2; + + /* Name of the output file. */ + const char *outfname; + /* Name of the temporary file we initially create. */ + const char *tempfname; + /* File descriptor opened for the output file. */ + int outfd; + /* The ELF descriptor for the output file. */ + Elf *outelf; + + /* Type of output file. */ + enum file_type file_type; + + /* Is this a system library or not. */ + bool is_system_library; + + /* Page size to be assumed for the binary. */ + size_t pagesize; + + /* Name of the interpreter for dynamically linked objects. */ + const char *interp; + /* Index of the .interp section. */ + Elf32_Word interpscnidx; + + /* Optimization level. */ + unsigned long int optlevel; + + /* If true static linking is requested. */ + bool statically; + + /* How to extract elements from archives. */ + enum extract_rule extract_rule; + + /* Sequence number of the last archive we used. */ + int last_archive_used; + + /* If true print to stdout information about the files we are + trying to open. */ + bool trace_files; + + /* If true multiple definitions are not considered an error; the + first is used. */ + bool muldefs; + + /* If true undefined symbols when building DSOs are not fatal. */ + bool nodefs; + + /* If true add line indentifying link-editor to .comment section. */ + bool add_ld_comment; + + /* Stripping while linking. */ + enum + { + strip_none, + strip_debug, + strip_all, + strip_everything + } strip; + + /* The callback function vector. */ + struct callbacks callbacks; + + /* Name of the entry symbol. Can also be a numeric value. */ + const char *entry; + + /* The description of the segments in the output file. */ + struct output_segment *output_segments; + + /* List of the symbols we created from linker script definitions. */ + struct symbol *lscript_syms; + size_t nlscript_syms; + + /* Table with known symbols. */ + ld_symbol_tab symbol_tab; + + /* Table with used sections. */ + ld_section_tab section_tab; + + /* The list of sections once we collected them. */ + struct scnhead **allsections; + size_t nallsections; + size_t nusedsections; + size_t nnotesections; + + /* Beginning of the list of symbols which are still unresolved. */ + struct symbol *unresolved; + /* Number of truely unresolved entries in the list. */ + size_t nunresolved; + /* Number of truely unresolved, non-weak entries in the list. */ + size_t nunresolved_nonweak; + + /* List of common symbols. */ + struct symbol *common_syms; + /* Section for the common symbols. */ + struct scninfo *common_section; + + /* List of symbols defined in DSOs and used in a relocatable file. + DSO symbols not referenced in the relocatable files are not on + the list. If a symbol is on the list the on_dsolist field in the + 'struct symbol' is nonzero. */ + struct symbol *from_dso; + /* Number of entries in from_dso. */ + size_t nfrom_dso; + /* Number of entries in the dynamic symbol table. */ + size_t ndynsym; + /* Number of PLT entries from DSO references. */ + size_t nplt; + /* Number of PLT entries from DSO references. */ + size_t ngot; + /* Number of copy relocations. */ + size_t ncopy; + /* Section for copy relocations. */ + struct scninfo *copy_section; + + /* Keeping track of the number of symbols in the output file. */ + size_t nsymtab; + size_t nlocalsymbols; + + /* Special symbols. */ + struct symbol *init_symbol; + struct symbol *fini_symbol; + + /* The description of the segments in the output file as described + in the default linker script. This information will be used in + addition to the user-provided information. */ + struct output_segment *default_output_segments; + /* Search paths added by the default linker script. */ + struct pathelement *default_paths; + +#ifndef BASE_ELF_NAME + /* The handle of the ld backend library. */ + void *ldlib; +#endif + + /* String table for the section headers. */ + struct Ebl_Strtab *shstrtab; + + /* True if output file should contain symbol table. */ + bool need_symtab; + /* Symbol table section. */ + Elf32_Word symscnidx; + /* Extended section table section. */ + Elf32_Word xndxscnidx; + /* Symbol string table section. */ + Elf32_Word strscnidx; + + /* True if output file should contain dynamic symbol table. */ + bool need_dynsym; + /* Dynamic symbol table section. */ + Elf32_Word dynsymscnidx; + /* Dynamic symbol string table section. */ + Elf32_Word dynstrscnidx; + /* Dynamic symbol hash table. */ + size_t hashscnidx; + + /* Procedure linkage table section. */ + Elf32_Word pltscnidx; + /* Number of entries already in the PLT section. */ + size_t nplt_used; + /* Relocation for procedure linkage table section. */ + Elf32_Word pltrelscnidx; + + /* Global offset table section. */ + Elf32_Word gotscnidx; + + /* This section will hole all non-PLT relocations. */ + Elf32_Word reldynscnidx; + + /* Index of the sections to handle versioning. */ + Elf32_Word versymscnidx; + Elf32_Word verneedscnidx; + /* XXX Should the following names be verneed...? */ + /* Number of version definitions in input DSOs used. */ + int nverdefused; + /* Number of input DSOs using versioning. */ + int nverdeffile; + /* Index of next version. */ + int nextveridx; + + /* Hash table for version symbol strings. Only strings without + special characters are hashed here. */ + ld_version_str_tab version_str_tab; + /* At most one of the following two variables is set to true if either + global or local symbol binding is selected as the default. */ + bool default_bind_local; + bool default_bind_global; + + /* True if only used sections are used. */ + bool gc_sections; + + /* Array to determine final index of symbol. */ + Elf32_Word *dblindirect; + + /* Section group handling. */ + struct scngroup + { + Elf32_Word outscnidx; + int nscns; + struct member + { + struct scnhead *scn; + struct member *next; + } *member; + struct Ebl_Strent *nameent; + struct symbol *symbol; + struct scngroup *next; + } *groups; + + /* True if the output file needs a .got section. */ + bool need_got; + /* Number of relocations for GOT section caused. */ + size_t nrel_got; + + /* Number of entries needed in the .dynamic section. */ + int ndynamic; + /* To keep track of added entries. */ + int ndynamic_filled; + /* Index for the dynamic section. */ + Elf32_Word dynamicscnidx; + + /* Flags set in the DT_FLAGS word. */ + Elf32_Word dt_flags; + /* Flags set in the DT_FLAGS_1 word. */ + Elf32_Word dt_flags_1; + /* Flags set in the DT_FEATURE_1 word. */ + Elf32_Word dt_feature_1; + + /* Lazy-loading state for dependencies. */ + bool lazyload; + + /* True is DSOs which are not used in the linking process are not + recorded. */ + bool ignore_unused_dsos; + + + /* True if in executables all global symbols should be exported in + the dynamic symbol table. */ + bool export_all_dynamic; + + /* If DSO is generated, this is the SONAME. */ + const char *soname; + + /* List of all relocation sections. */ + struct scninfo *rellist; + /* Total size of non-PLT relocations. */ + size_t relsize_total; + + /* Record for the GOT symbol, if known. */ + struct symbol *got_symbol; + /* Record for the dynamic section symbol, if known. */ + struct symbol *dyn_symbol; + + /* Obstack used for small objects which will not be deleted. */ + struct obstack smem; +}; + + +/* The interface to the scanner. */ + +/* Parser entry point. */ +extern int ldparse (void); + +/* The input file. */ +extern FILE *ldin; + +/* Name of the input file. */ +extern const char *ldin_fname; + +/* Current line number. Must be reset for a new file. */ +extern int ldlineno; + +/* If nonzero we are currently parsing a version script. */ +extern int ld_scan_version_script; + +/* Flags defined in ld.c. */ +extern int verbose; +extern int conserve_memory; + + +/* Linker state. This contains all global information. */ +extern struct ld_state ld_state; + + +/* Generic ld helper functions. */ + +/* Append a new directory to search libraries in. */ +extern void ld_new_searchdir (const char *dir); + +/* Append a new file to the list of input files. */ +extern struct usedfiles *ld_new_inputfile (const char *fname, + enum file_type type); + + +/* These are the generic implementations for the callbacks used by ld. */ + +/* Initialize state object. This callback function is called after the + parameters are parsed but before any file is searched for. */ +extern int ld_prepare_state (const char *emulation); + + +/* Function to determine whether an object will be dynamically linked. */ +extern bool dynamically_linked_p (void); + +/* Helper functions for the architecture specific code. */ + +/* Checked whether the symbol is undefined and referenced from a DSO. */ +extern bool linked_from_dso_p (struct scninfo *scninfo, size_t symidx); +extern inline bool +linked_from_dso_p (struct scninfo *scninfo, size_t symidx) +{ + struct usedfiles *file = scninfo->fileinfo; + + /* If this symbol is not undefined in this file it cannot come from + a DSO. */ + if (symidx < file->nlocalsymbols) + return false; + + struct symbol *sym = file->symref[symidx]; + + return sym->defined && sym->in_dso; +} + +#endif /* ld.h */ diff --git a/src/ldgeneric.c b/src/ldgeneric.c new file mode 100644 index 0000000..1b6c720 --- /dev/null +++ b/src/ldgeneric.c @@ -0,0 +1,6376 @@ +/* Copyright (C) 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include "ld.h" +#include "list.h" + + +/* Prototypes for local functions. */ +static const char **ld_generic_lib_extensions (struct ld_state *) + __attribute__ ((__const__)); +static int ld_generic_file_close (struct usedfiles *fileinfo, + struct ld_state *statep); +static int ld_generic_file_process (int fd, struct usedfiles *fileinfo, + struct ld_state *statep, + struct usedfiles **nextp); +static void ld_generic_generate_sections (struct ld_state *statep); +static void ld_generic_create_sections (struct ld_state *statep); +static int ld_generic_flag_unresolved (struct ld_state *statep); +static int ld_generic_open_outfile (struct ld_state *statep, int machine, + int class, int data); +static int ld_generic_create_outfile (struct ld_state *statep); +static void ld_generic_relocate_section (struct ld_state *statep, + Elf_Scn *outscn, + struct scninfo *firstp, + const Elf32_Word *dblindirect); +static int ld_generic_finalize (struct ld_state *statep); +static bool ld_generic_special_section_number_p (struct ld_state *statep, + size_t number); +static bool ld_generic_section_type_p (struct ld_state *statep, + XElf_Word type); +static XElf_Xword ld_generic_dynamic_section_flags (struct ld_state *statep); +static void ld_generic_initialize_plt (struct ld_state *statep, Elf_Scn *scn); +static void ld_generic_initialize_pltrel (struct ld_state *statep, + Elf_Scn *scn); +static void ld_generic_initialize_got (struct ld_state *statep, Elf_Scn *scn); +static void ld_generic_finalize_plt (struct ld_state *statep, size_t nsym, + size_t nsym_dyn); +static int ld_generic_rel_type (struct ld_state *statep); +static void ld_generic_count_relocations (struct ld_state *statep, + struct scninfo *scninfo); +static void ld_generic_create_relocations (struct ld_state *statep, + const Elf32_Word *dblindirect); + +static int file_process2 (struct usedfiles *fileinfo); +static void mark_section_used (struct scninfo *scninfo, Elf32_Word shndx, + struct scninfo **grpscnp); + + +/* Map symbol index to struct symbol record. */ +static struct symbol **ndxtosym; + +/* String table reference to all symbols in the symbol table. */ +static struct Ebl_Strent **symstrent; + + +/* Check whether file associated with FD is a DSO. */ +static bool +is_dso_p (int fd) +{ + /* We have to read the 'e_type' field. It has the same size (16 + bits) in 32- and 64-bit ELF. */ + XElf_Half e_type; + + return (pread (fd, &e_type, sizeof (e_type), offsetof (XElf_Ehdr, e_type)) + == sizeof (e_type) + && e_type == ET_DYN); +} + + +/* Print the complete name of a file, including the archive it is + contained in. */ +static int +print_file_name (FILE *s, struct usedfiles *fileinfo, int first_level, + int newline) +{ + int npar = 0; + + if (fileinfo->archive_file != NULL) + { + npar = print_file_name (s, fileinfo->archive_file, 0, 0) + 1; + fputc_unlocked ('(', s); + fputs_unlocked (fileinfo->rfname, s); + + if (first_level) + while (npar-- > 0) + fputc_unlocked (')', s); + } + else + fputs_unlocked (fileinfo->rfname, s); + + if (first_level && newline) + fputc_unlocked ('\n', s); + + return npar; +} + + +/* Function to determine whether an object will be dynamically linked. */ +bool +dynamically_linked_p (void) +{ + return (ld_state.file_type == dso_file_type || ld_state.nplt > 0 + || ld_state.ngot > 0); +} + + +bool +linked_from_dso_p (struct scninfo *scninfo, size_t symidx) +{ + struct usedfiles *file = scninfo->fileinfo; + + /* If this symbol is not undefined in this file it cannot come from + a DSO. */ + if (symidx < file->nlocalsymbols) + return false; + + struct symbol *sym = file->symref[symidx]; + + return sym->defined && sym->in_dso; +} + + +/* Initialize state object. This callback function is called after the + parameters are parsed but before any file is searched for. */ +int +ld_prepare_state (const char *emulation) +{ + /* When generating DSO we normally allow undefined symbols. */ + ld_state.nodefs = true; + + /* To be able to detect problems we add a .comment section entry by + default. */ + ld_state.add_ld_comment = true; + + /* XXX We probably should find a better place for this. The index + of the first user-defined version is 2. */ + ld_state.nextveridx = 2; + + /* Pick an not too small number for the initial size of the tables. */ + ld_symbol_tab_init (&ld_state.symbol_tab, 1027); + ld_section_tab_init (&ld_state.section_tab, 67); + ld_version_str_tab_init (&ld_state.version_str_tab, 67); + + /* Initialize the section header string table. */ + ld_state.shstrtab = ebl_strtabinit (true); + if (ld_state.shstrtab == NULL) + error (EXIT_FAILURE, errno, gettext ("cannot create string table")); + + /* Initialize the callbacks. These are the defaults, the appropriate + backend can later install its own callbacks. */ + ld_state.callbacks.lib_extensions = ld_generic_lib_extensions; + ld_state.callbacks.file_process = ld_generic_file_process; + ld_state.callbacks.file_close = ld_generic_file_close; + ld_state.callbacks.generate_sections = ld_generic_generate_sections; + ld_state.callbacks.create_sections = ld_generic_create_sections; + ld_state.callbacks.flag_unresolved = ld_generic_flag_unresolved; + ld_state.callbacks.open_outfile = ld_generic_open_outfile; + ld_state.callbacks.create_outfile = ld_generic_create_outfile; + ld_state.callbacks.relocate_section = ld_generic_relocate_section; + ld_state.callbacks.finalize = ld_generic_finalize; + ld_state.callbacks.special_section_number_p = + ld_generic_special_section_number_p; + ld_state.callbacks.section_type_p = ld_generic_section_type_p; + ld_state.callbacks.dynamic_section_flags = ld_generic_dynamic_section_flags; + ld_state.callbacks.initialize_plt = ld_generic_initialize_plt; + ld_state.callbacks.initialize_pltrel = ld_generic_initialize_pltrel; + ld_state.callbacks.initialize_got = ld_generic_initialize_got; + ld_state.callbacks.finalize_plt = ld_generic_finalize_plt; + ld_state.callbacks.rel_type = ld_generic_rel_type; + ld_state.callbacks.count_relocations = ld_generic_count_relocations; + ld_state.callbacks.create_relocations = ld_generic_create_relocations; + +#ifndef BASE_ELF_NAME + /* Find the ld backend library. Use EBL to determine the name if + the user hasn't provided one on the command line. */ + if (emulation == NULL) + { + emulation = ebl_backend_name (ld_state.ebl); + assert (emulation != NULL); + } + size_t emulation_len = strlen (emulation); + + /* Construct the file name. */ + char *fname = (char *) alloca (sizeof "libld_" - 1 + emulation_len + + sizeof ".so"); + strcpy (mempcpy (stpcpy (fname, "libld_"), emulation, emulation_len), ".so"); + + /* Try loading. */ + void *h = dlopen (fname, RTLD_LAZY); + if (h == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot load ld backend library '%s': %s"), + fname, dlerror ()); + + /* Find the initializer. It must be present. */ + char *initname = (char *) alloca (emulation_len + sizeof "_ld_init"); + strcpy (mempcpy (initname, emulation, emulation_len), "_ld_init"); + int (*initfct) (struct ld_state *) + = (int (*) (struct ld_state *)) dlsym (h, initname); + + if (initfct == NULL) + error (EXIT_FAILURE, 0, gettext ("\ +cannot find init function in ld backend library '%s': %s"), + fname, dlerror ()); + + /* Store the handle. */ + ld_state.ldlib = h; + + /* Call the init function. */ + return initfct (&ld_state); +#else +# define INIT_FCT_NAME(base) _INIT_FCT_NAME(base) +# define _INIT_FCT_NAME(base) base##_ld_init + /* Declare and call the initialization function. */ + extern int INIT_FCT_NAME(BASE_ELF_NAME) (struct ld_state *); + return INIT_FCT_NAME(BASE_ELF_NAME) (&ld_state); +#endif +} + + +static int +check_for_duplicate2 (struct usedfiles *newp, struct usedfiles *list) +{ + struct usedfiles *first; + struct usedfiles *prevp; + + if (list == NULL) + return 0; + + prevp = list; + list = first = list->next; + do + { + /* When searching the needed list we might come across entries + for files which are not yet opened. Stop then, there is + nothing more to test. */ + if (likely (list->status == not_opened)) + break; + + if (unlikely (list->ino == newp->ino) + && unlikely (list->dev == newp->dev)) + { + close (newp->fd); + newp->fd = -1; + newp->status = closed; + if (newp->file_type == relocatable_file_type) + error (0, 0, gettext ("%s listed more than once as input"), + newp->rfname); + + return 1; + } + list = list->next; + } + while (likely (list != first)); + + return 0; +} + + +static int +check_for_duplicate (struct usedfiles *newp) +{ + struct stat st; + + if (unlikely (fstat (newp->fd, &st) < 0)) + { + close (newp->fd); + return errno; + } + + newp->dev = st.st_dev; + newp->ino = st.st_ino; + + return (check_for_duplicate2 (newp, ld_state.relfiles) + || check_for_duplicate2 (newp, ld_state.dsofiles) + || check_for_duplicate2 (newp, ld_state.needed)); +} + + +/* Find a file along the path described in the state. */ +static int +open_along_path2 (struct usedfiles *fileinfo, struct pathelement *path) +{ + const char *fname = fileinfo->fname; + size_t fnamelen = strlen (fname); + int err = ENOENT; + struct pathelement *firstp = path; + + if (path == NULL) + /* Cannot find anything since we have no path. */ + return ENOENT; + + do + { + if (likely (path->exist >= 0)) + { + /* Create the file name. */ + char *rfname = NULL; + size_t dirlen = strlen (path->pname); + int fd = -1; + + if (fileinfo->file_type == archive_file_type) + { + const char **exts = (ld_state.statically + ? (const char *[2]) { ".a", NULL } + : LIB_EXTENSION (&ld_state)); + + /* We have to create the actual file name. We prepend "lib" + and add one of the extensions the platform has. */ + while (*exts != NULL) + { + size_t extlen = strlen (*exts); + rfname = (char *) alloca (dirlen + 5 + fnamelen + extlen); + memcpy (mempcpy (stpcpy (mempcpy (rfname, path->pname, + dirlen), + "/lib"), + fname, fnamelen), + *exts, extlen + 1); + + fd = open (rfname, O_RDONLY); + if (likely (fd != -1) || errno != ENOENT) + { + err = fd == -1 ? errno : 0; + break; + } + + /* Next extension. */ + ++exts; + } + } + else + { + assert (fileinfo->file_type == dso_file_type + || fileinfo->file_type == dso_needed_file_type); + + rfname = (char *) alloca (dirlen + 1 + fnamelen + 1); + memcpy (stpcpy (mempcpy (rfname, path->pname, dirlen), "/"), + fname, fnamelen + 1); + + fd = open (rfname, O_RDONLY); + if (unlikely (fd == -1)) + err = errno; + } + + if (likely (fd != -1)) + { + /* We found the file. This also means the directory + exists. */ + fileinfo->fd = fd; + path->exist = 1; + + /* Check whether we have this file already loaded. */ + if (unlikely (check_for_duplicate (fileinfo) != 0)) + return EAGAIN; + + /* Make a copy of the name. */ + fileinfo->rfname = obstack_strdup (&ld_state.smem, rfname); + + if (unlikely (ld_state.trace_files)) + printf (fileinfo->file_type == archive_file_type + ? gettext ("%s (for -l%s)\n") + : gettext ("%s (for DT_NEEDED %s)\n"), + rfname, fname); + + return 0; + } + + /* The file does not exist. Maybe the whole directory doesn't. + Check it unless we know it exists. */ + if (unlikely (path->exist == 0)) + { + struct stat st; + + /* Keep only the directory name. Note that the path + might be relative. This doesn't matter here. We do + the test in any case even if there is the chance that + somebody wants to change the programs working + directory at some point which would make the result + of this test void. Since changing the working + directory is completely wrong we are not taking this + case into account. */ + rfname[dirlen] = '\0'; + if (unlikely (stat (rfname, &st) < 0) || ! S_ISDIR (st.st_mode)) + /* The directory does not exist or the named file is no + directory. */ + path->exist = -1; + else + path->exist = 1; + } + } + + /* Next path element. */ + path = path->next; + } + while (likely (err == ENOENT && path != firstp)); + + return err; +} + + +static int +open_along_path (struct usedfiles *fileinfo) +{ + const char *fname = fileinfo->fname; + int err = ENOENT; + + if (fileinfo->file_type == relocatable_file_type) + { + /* Only libraries are searched along the path. */ + fileinfo->fd = open (fname, O_RDONLY); + + if (likely (fileinfo->fd != -1)) + { + /* We found the file. */ + if (unlikely (ld_state.trace_files)) + print_file_name (stdout, fileinfo, 1, 1); + + return check_for_duplicate (fileinfo); + } + + /* If the name is an absolute path we are done. */ + err = errno; + } + else + { + /* If the user specified two parts to the LD_LIBRARY_PATH variable + try the first part now. */ + err = open_along_path2 (fileinfo, ld_state.ld_library_path1); + + /* Try the user-specified path next. */ + if (err == ENOENT) + err = open_along_path2 (fileinfo, + fileinfo->file_type == archive_file_type + ? ld_state.paths : ld_state.rpath_link); + + /* Then the second part of the LD_LIBRARY_PATH value. */ + if (unlikely (err == ENOENT)) + { + err = open_along_path2 (fileinfo, ld_state.ld_library_path2); + + /* In case we look for a DSO handle now the RUNPATH. */ + if (err == ENOENT) + { + if (fileinfo->file_type == dso_file_type) + err = open_along_path2 (fileinfo, ld_state.runpath_link); + + /* Finally the path from the default linker script. */ + if (err == ENOENT) + err = open_along_path2 (fileinfo, ld_state.default_paths); + } + } + } + + if (unlikely (err != 0) + && (err != EAGAIN || fileinfo->file_type == relocatable_file_type)) + error (0, err, gettext ("cannot open %s"), fileinfo->fname); + + return err; +} + + +static void +check_type_and_size (const XElf_Sym *sym, struct usedfiles *fileinfo, + struct symbol *oldp) +{ + /* We check the type and size of the symbols. In both cases the + information can be missing (size is zero, type is STT_NOTYPE) in + which case we issue no warnings. Otherwise everything must + match. If the type does not match there is no point in checking + the size. */ + + if (XELF_ST_TYPE (sym->st_info) != STT_NOTYPE && oldp->type != STT_NOTYPE + && unlikely (oldp->type != XELF_ST_TYPE (sym->st_info))) + { + char buf1[64]; + char buf2[64]; + + error (0, 0, gettext ("\ +Warning: type of `%s' changed from %s in %s to %s in %s"), + oldp->name, + ebl_symbol_type_name (ld_state.ebl, oldp->type, + buf1, sizeof (buf1)), + oldp->file->rfname, + ebl_symbol_type_name (ld_state.ebl, XELF_ST_TYPE (sym->st_info), + buf2, sizeof (buf2)), + fileinfo->rfname); + } + else if (XELF_ST_TYPE (sym->st_info) == STT_OBJECT + && oldp->size != 0 + && unlikely (oldp->size != sym->st_size)) + error (0, 0, gettext ("\ +Warning: size of `%s' changed from %" PRIu64 " in %s to %" PRIu64 " in %s"), + oldp->name, (uint64_t) oldp->size, oldp->file->rfname, + (uint64_t) sym->st_size, fileinfo->rfname); +} + + +static int +check_definition (const XElf_Sym *sym, size_t symidx, + struct usedfiles *fileinfo, struct symbol *oldp) +{ + int result = 0; + bool old_in_dso = FILEINFO_EHDR (oldp->file->ehdr).e_type == ET_DYN; + bool new_in_dso = FILEINFO_EHDR (fileinfo->ehdr).e_type == ET_DYN; + bool use_new_def = false; + + if (sym->st_shndx != SHN_UNDEF + && (! oldp->defined + || (sym->st_shndx != SHN_COMMON && oldp->common && ! new_in_dso) + || (old_in_dso && ! new_in_dso))) + { + /* We found a definition for a previously undefined symbol or a + real definition for a previous common-only definition or a + redefinition of a symbol definition in an object file + previously defined in a DSO. First perform some tests which + will show whether the common is really matching the + definition. */ + check_type_and_size (sym, fileinfo, oldp); + + /* We leave the next element intact to not interrupt the list + with the unresolved symbols. Whoever walks the list will + have to check the `defined' flag. But we remember that this + list element is not unresolved anymore. */ + if (! oldp->defined) + { + /* Remove from the list. */ + --ld_state.nunresolved; + if (! oldp->weak) + --ld_state.nunresolved_nonweak; + CDBL_LIST_DEL (ld_state.unresolved, oldp); + } + else if (oldp->common) + /* Remove from the list. */ + CDBL_LIST_DEL (ld_state.common_syms, oldp); + + /* Use the values of the definition from now on. */ + use_new_def = true; + } + else if (sym->st_shndx != SHN_UNDEF + && unlikely (! oldp->common) + && oldp->defined + && sym->st_shndx != SHN_COMMON + /* Multiple definitions are no fatal errors if the -z muldefs flag + is used. We don't warn about the multiple definition unless we + are told to be verbose. */ + && (!ld_state.muldefs || verbose) + && ! old_in_dso && fileinfo->file_type == relocatable_file_type) + { + /* We have a double definition. This is a problem. */ + char buf[64]; + XElf_Sym_vardef (oldsym); + struct usedfiles *oldfile; + const char *scnname; + Elf32_Word xndx; + size_t shndx; + size_t shnum; + + if (elf_getshnum (fileinfo->elf, &shnum) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot determine number of sections: %s"), + elf_errmsg (-1)); + + /* XXX Use only ebl_section_name. */ + if (sym->st_shndx < SHN_LORESERVE // || sym->st_shndx > SHN_HIRESERVE + && sym->st_shndx < shnum) + scnname = elf_strptr (fileinfo->elf, + fileinfo->shstrndx, + SCNINFO_SHDR (fileinfo->scninfo[sym->st_shndx].shdr).sh_name); + else + // XXX extended section + scnname = ebl_section_name (ld_state.ebl, sym->st_shndx, 0, + buf, sizeof (buf), NULL, shnum); + + /* XXX Print source file and line number. */ + print_file_name (stderr, fileinfo, 1, 0); + fprintf (stderr, + gettext ("(%s+%#" PRIx64 "): multiple definition of %s `%s'\n"), + scnname, + (uint64_t) sym->st_value, + ebl_symbol_type_name (ld_state.ebl, XELF_ST_TYPE (sym->st_info), + buf, sizeof (buf)), + oldp->name); + + oldfile = oldp->file; + xelf_getsymshndx (oldfile->symtabdata, oldfile->xndxdata, oldp->symidx, + oldsym, xndx); + if (oldsym == NULL) + /* This should never happen since the same call + succeeded before. */ + abort (); + + shndx = oldsym->st_shndx; + if (unlikely (oldsym->st_shndx == SHN_XINDEX)) + shndx = xndx; + + /* XXX Use only ebl_section_name. */ + if (shndx < SHN_LORESERVE || shndx > SHN_HIRESERVE) + scnname = elf_strptr (oldfile->elf, + oldfile->shstrndx, + SCNINFO_SHDR (oldfile->scninfo[shndx].shdr).sh_name); + else + scnname = ebl_section_name (ld_state.ebl, oldsym->st_shndx, shndx, buf, + sizeof (buf), NULL, shnum); + + /* XXX Print source file and line number. */ + print_file_name (stderr, oldfile, 1, 0); + fprintf (stderr, gettext ("(%s+%#" PRIx64 "): first defined here\n"), + scnname, (uint64_t) oldsym->st_value); + + if (likely (!ld_state.muldefs)) + result = 1; + } + else if (old_in_dso && fileinfo->file_type == relocatable_file_type + && sym->st_shndx != SHN_UNDEF) + /* We use the definition from a normal relocatable file over the + definition in a DSO. This is what the dynamic linker would + do, too. */ + use_new_def = true; + else if (old_in_dso && !new_in_dso && oldp->defined && !oldp->on_dsolist) + { + CDBL_LIST_ADD_REAR (ld_state.from_dso, oldp); + ++ld_state.nfrom_dso; + + /* If the object is a function we allocate a PLT entry, + otherwise only a GOT entry. */ + if (oldp->type == STT_FUNC) + ++ld_state.nplt; + else + ++ld_state.ngot; + + oldp->on_dsolist = 1; + } + else if (oldp->common && sym->st_shndx == SHN_COMMON) + { + /* The symbol size is the largest of all common definitions. */ + oldp->size = MAX (oldp->size, sym->st_size); + /* Similarly for the alignment. */ + oldp->merge.value = MAX (oldp->merge.value, sym->st_value); + } + + if (unlikely (use_new_def)) + { + /* Adjust the symbol record appropriately and remove + the symbol from the list of symbols which are taken from DSOs. */ + if (old_in_dso && fileinfo->file_type == relocatable_file_type) + { + CDBL_LIST_DEL (ld_state.from_dso, oldp); + --ld_state.nfrom_dso; + + if (likely (oldp->type == STT_FUNC)) + --ld_state.nplt; + else + --ld_state.ngot; + + oldp->on_dsolist = 0; + } + + /* Use the values of the definition from now on. */ + oldp->size = sym->st_size; + oldp->type = XELF_ST_TYPE (sym->st_info); + oldp->symidx = symidx; + oldp->scndx = sym->st_shndx; + //oldp->symscndx = THESYMSCNDX must be passed; + oldp->file = fileinfo; + oldp->defined = 1; + oldp->in_dso = new_in_dso; + oldp->common = sym->st_shndx == SHN_COMMON; + if (likely (fileinfo->file_type == relocatable_file_type)) + { + /* If the definition comes from a DSO we pertain the weak flag + and it's indicating whether the reference is weak or not. */ + oldp->weak = XELF_ST_BIND (sym->st_info) == STB_WEAK; + + if (sym->st_shndx != SHN_COMMON) + { + struct scninfo *ignore; + mark_section_used (&fileinfo->scninfo[sym->st_shndx], + sym->st_shndx, &ignore); + } + } + + /* Add to the list of symbols used from DSOs if necessary. */ + if (new_in_dso && !old_in_dso) + { + CDBL_LIST_ADD_REAR (ld_state.from_dso, oldp); + ++ld_state.nfrom_dso; + + /* If the object is a function we allocate a PLT entry, + otherwise only a GOT entry. */ + if (oldp->type == STT_FUNC) + ++ld_state.nplt; + else + ++ld_state.ngot; + + oldp->on_dsolist = 1; + } + else if (sym->st_shndx == SHN_COMMON) + { + /* Store the alignment. */ + oldp->merge.value = sym->st_value; + + CDBL_LIST_ADD_REAR (ld_state.common_syms, oldp); + } + } + + return result; +} + + +static struct scninfo * +find_section_group (struct usedfiles *fileinfo, Elf32_Word shndx, + Elf_Data **datap) +{ + struct scninfo *runp; + + for (runp = fileinfo->groups; runp != NULL; runp = runp->next) + if (!runp->used) + { + Elf32_Word *grpref; + size_t cnt; + Elf_Data *data; + + data = elf_getdata (runp->scn, NULL); + if (data == NULL) + error (EXIT_FAILURE, 0, + gettext ("%s: cannot get section group data: %s"), + fileinfo->fname, elf_errmsg (-1)); + + /* There cannot be another data block. */ + assert (elf_getdata (runp->scn, data) == NULL); + + grpref = (Elf32_Word *) data->d_buf; + cnt = data->d_size / sizeof (Elf32_Word); + /* Note that we stop after looking at index 1 since index 0 + contains the flags for the section group. */ + while (cnt > 1) + if (grpref[--cnt] == shndx) + { + *datap = data; + return runp; + } + } + + /* If we come here no section group contained the given section + despite the SHF_GROUP flag. This is an error in the input + file. */ + error (EXIT_FAILURE, 0, gettext ("\ +%s: section '%s' with group flag set does not belong to any group"), + fileinfo->fname, + elf_strptr (fileinfo->elf, fileinfo->shstrndx, + SCNINFO_SHDR (fileinfo->scninfo[shndx].shdr).sh_name)); + return NULL; +} + + +/* Mark all sections which belong to the same group as section SHNDX + as used. */ +static void +mark_section_group (struct usedfiles *fileinfo, Elf32_Word shndx, + struct scninfo **grpscnp) +{ + /* First locate the section group. There can be several (many) of + them. */ + size_t cnt; + Elf32_Word *grpref; + Elf_Data *data; + struct scninfo *grpscn = find_section_group (fileinfo, shndx, &data); + *grpscnp = grpscn; + + /* Mark all the sections as used. + + XXX Two possible problems here: + + - the gABI says "The section must be referenced by a section of type + SHT_GROUP". I hope everybody reads this as "exactly one section". + + - section groups are also useful to mark the debugging section which + belongs to a text section. Unconditionally adding debugging sections + is therefore probably not what is wanted if stripping is required. */ + + /* Mark the section group as handled. */ + grpscn->used = true; + + grpref = (Elf32_Word *) data->d_buf; + cnt = data->d_size / sizeof (Elf32_Word); + while (cnt > 1) + { + Elf32_Word idx = grpref[--cnt]; + XElf_Shdr *shdr = &SCNINFO_SHDR (fileinfo->scninfo[idx].shdr); + + if (fileinfo->scninfo[idx].grpid != 0) + error (EXIT_FAILURE, 0, gettext ("\ +%s: section [%2d] '%s' is in more than one section group"), + fileinfo->fname, (int) idx, + elf_strptr (fileinfo->elf, fileinfo->shstrndx, shdr->sh_name)); + + fileinfo->scninfo[idx].grpid = grpscn->grpid; + + if (ld_state.strip == strip_none + /* If we are stripping, remove debug sections. */ + || (!ebl_debugscn_p (ld_state.ebl, + elf_strptr (fileinfo->elf, fileinfo->shstrndx, + shdr->sh_name)) + /* And the relocation sections for the debug sections. */ + && ((shdr->sh_type != SHT_RELA && shdr->sh_type != SHT_REL) + || !ebl_debugscn_p (ld_state.ebl, + elf_strptr (fileinfo->elf, + fileinfo->shstrndx, + SCNINFO_SHDR (fileinfo->scninfo[shdr->sh_info].shdr).sh_name))))) + { + struct scninfo *ignore; + + mark_section_used (&fileinfo->scninfo[idx], idx, &ignore); + } + } +} + + +static void +mark_section_used (struct scninfo *scninfo, Elf32_Word shndx, + struct scninfo **grpscnp) +{ + if (likely (scninfo->used)) + /* Nothing to be done. */ + return; + + /* We need this section. */ + scninfo->used = true; + + /* Make sure the section header has been read from the file. */ + XElf_Shdr *shdr = &SCNINFO_SHDR (scninfo->shdr); +#if NATIVE_ELF + if (unlikely (scninfo->shdr == NULL)) +#else + if (unlikely (scninfo->shdr.sh_type == SHT_NULL)) +#endif + { +#if NATIVE_ELF != 0 + shdr = xelf_getshdr (scninfo->scn, scninfo->shdr); +#else + xelf_getshdr_copy (scninfo->scn, shdr, scninfo->shdr); +#endif + if (unlikely (shdr == NULL)) + /* Something is very wrong. The calling code will notice it + soon and print a message. */ + return; + } + + /* Handle section linked by 'sh_link'. */ + if (unlikely (shdr->sh_link != 0)) + { + struct scninfo *ignore; + mark_section_used (&scninfo->fileinfo->scninfo[shdr->sh_link], + shdr->sh_link, &ignore); + } + + /* Handle section linked by 'sh_info'. */ + if (unlikely (shdr->sh_info != 0) && (shdr->sh_flags & SHF_INFO_LINK)) + { + struct scninfo *ignore; + mark_section_used (&scninfo->fileinfo->scninfo[shdr->sh_info], + shdr->sh_info, &ignore); + } + + if (unlikely (shdr->sh_flags & SHF_GROUP) && ld_state.gc_sections) + /* Find the section group which contains this section. */ + mark_section_group (scninfo->fileinfo, shndx, grpscnp); +} + + +/* We collect all sections in a hashing table. All sections with the + same name are collected in a list. Note that we do not determine + which sections are finally collected in the same output section + here. This would be terribly inefficient. It will be done later. */ +static void +add_section (struct usedfiles *fileinfo, struct scninfo *scninfo) +{ + struct scnhead *queued; + struct scnhead search; + unsigned long int hval; + XElf_Shdr *shdr = &SCNINFO_SHDR (scninfo->shdr); + struct scninfo *grpscn = NULL; + Elf_Data *grpscndata = NULL; + + /* See whether we can determine right away whether we need this + section in the output. + + XXX I assume here that --gc-sections only affects extraction + from an archive. If it also affects objects files given on + the command line then somebody must explain to me how the + dependency analysis should work. Should the entry point be + the root? What if it is a numeric value? */ + if (!scninfo->used + && (ld_state.strip == strip_none + || (shdr->sh_flags & SHF_ALLOC) != 0 + || shdr->sh_type == SHT_NOTE + || (shdr->sh_type == SHT_PROGBITS + && strcmp (elf_strptr (fileinfo->elf, + fileinfo->shstrndx, + shdr->sh_name), ".comment") == 0)) + && (fileinfo->status != in_archive || !ld_state.gc_sections)) + /* Mark as used and handle reference recursively if necessary. */ + mark_section_used (scninfo, elf_ndxscn (scninfo->scn), &grpscn); + + if ((shdr->sh_flags & SHF_GROUP) && grpscn == NULL) + /* Determine the symbol which name constitutes the signature + for the section group. */ + grpscn = find_section_group (fileinfo, elf_ndxscn (scninfo->scn), + &grpscndata); + assert (grpscn == NULL || grpscn->symbols->name != NULL); + + /* Determine the section name. */ + search.name = elf_strptr (fileinfo->elf, fileinfo->shstrndx, shdr->sh_name); + search.type = shdr->sh_type; + search.flags = shdr->sh_flags; + search.entsize = shdr->sh_entsize; + search.grp_signature = grpscn != NULL ? grpscn->symbols->name : NULL; + search.kind = scn_normal; + hval = elf_hash (search.name); + + /* Find already queued sections. */ + queued = ld_section_tab_find (&ld_state.section_tab, hval, &search); + if (queued != NULL) + { + bool is_comdat = false; + + /* If this section is part of a COMDAT section group we simply + ignore it since we already have a copy. */ + if (unlikely (shdr->sh_flags & SHF_GROUP)) + { + /* Get the data of the section group section. */ + if (grpscndata == NULL) + { + grpscndata = elf_getdata (grpscn->scn, NULL); + assert (grpscndata != NULL); + } + + /* XXX Possibly unaligned memory access. */ + is_comdat = ((Elf32_Word *) grpscndata->d_buf)[0] & GRP_COMDAT; + } + + if (!is_comdat) + { + /* No COMDAT section, we use the data. */ + scninfo->next = queued->last->next; + queued->last = queued->last->next = scninfo; + + queued->flags = SH_FLAGS_COMBINE (queued->flags, shdr->sh_flags); + queued->align = MAX (queued->align, shdr->sh_addralign); + } + } + else + { + /* We do not use obstacks here since the memory might be + deallocated. */ + queued = (struct scnhead *) xcalloc (sizeof (struct scnhead), 1); + queued->kind = scn_normal; + queued->name = search.name; + queued->type = shdr->sh_type; + queued->flags = shdr->sh_flags; + queued->align = shdr->sh_addralign; + queued->entsize = shdr->sh_entsize; + queued->grp_signature = grpscn != NULL ? grpscn->symbols->name : NULL; + queued->segment_nr = ~0; + queued->last = scninfo->next = scninfo; + + /* Add to the hash table and possibly overwrite existing value. */ + ld_section_tab_insert (&ld_state.section_tab, hval, queued); + } +} + + +static int +add_relocatable_file (struct usedfiles *fileinfo, GElf_Word secttype) +{ + size_t scncnt; + size_t cnt; + Elf_Data *symtabdata = NULL; + Elf_Data *xndxdata = NULL; + Elf_Data *versymdata = NULL; + Elf_Data *verdefdata = NULL; + Elf_Data *verneeddata = NULL; + size_t symstridx = 0; + size_t nsymbols = 0; + size_t nlocalsymbols = 0; + bool has_merge_sections = false; + + /* Prerequisites. */ + assert (fileinfo->elf != NULL); + + /* Allocate memory for the sections. */ + if (unlikely (elf_getshnum (fileinfo->elf, &scncnt) < 0)) + error (EXIT_FAILURE, 0, + gettext ("cannot determine number of sections: %s"), + elf_errmsg (-1)); + + fileinfo->scninfo = (struct scninfo *) + obstack_calloc (&ld_state.smem, scncnt * sizeof (struct scninfo)); + + /* Read all the section headers and find the symbol table. Note + that we don't skip the section with index zero. Even though the + section itself is always empty the section header contains + informaton for the case when the section index for the section + header string table is too large to fit in the ELF header. */ + for (cnt = 0; cnt < scncnt; ++cnt) + { + /* Store the handle for the section. */ + fileinfo->scninfo[cnt].scn = elf_getscn (fileinfo->elf, cnt); + + /* Get the ELF section header and data. */ + XElf_Shdr *shdr; +#if NATIVE_ELF != 0 + if (fileinfo->scninfo[cnt].shdr == NULL) +#else + if (fileinfo->scninfo[cnt].shdr.sh_type == SHT_NULL) +#endif + { +#if NATIVE_ELF != 0 + shdr = xelf_getshdr (fileinfo->scninfo[cnt].scn, + fileinfo->scninfo[cnt].shdr); +#else + xelf_getshdr_copy (fileinfo->scninfo[cnt].scn, shdr, + fileinfo->scninfo[cnt].shdr); +#endif + if (shdr == NULL) + { + /* This should never happen. */ + fprintf (stderr, gettext ("%s: invalid ELF file (%s:%d)\n"), + fileinfo->rfname, __FILE__, __LINE__); + return 1; + } + } + else + shdr = &SCNINFO_SHDR (fileinfo->scninfo[cnt].shdr); + + Elf_Data *data = elf_getdata (fileinfo->scninfo[cnt].scn, NULL); + + /* Check whether this section is marked as merge-able. */ + has_merge_sections |= (shdr->sh_flags & SHF_MERGE) != 0; + + /* Get the ELF section header and data. */ + /* Make the file structure available. */ + fileinfo->scninfo[cnt].fileinfo = fileinfo; + + if (unlikely (shdr->sh_type == SHT_SYMTAB) + || unlikely (shdr->sh_type == SHT_DYNSYM)) + { + if (shdr->sh_type == SHT_SYMTAB) + { + assert (fileinfo->symtabdata == NULL); + fileinfo->symtabdata = data; + fileinfo->nsymtab = shdr->sh_size / shdr->sh_entsize; + fileinfo->nlocalsymbols = shdr->sh_info; + fileinfo->symstridx = shdr->sh_link; + } + else + { + assert (fileinfo->dynsymtabdata == NULL); + fileinfo->dynsymtabdata = data; + fileinfo->ndynsymtab = shdr->sh_size / shdr->sh_entsize; + fileinfo->dynsymstridx = shdr->sh_link; + } + + /* If we are looking for the normal symbol table we just + found it. */ + if (secttype == shdr->sh_type) + { + assert (symtabdata == NULL); + symtabdata = data; + symstridx = shdr->sh_link; + nsymbols = shdr->sh_size / shdr->sh_entsize; + nlocalsymbols = shdr->sh_info; + } + } + else if (unlikely (shdr->sh_type == SHT_SYMTAB_SHNDX)) + { + assert (xndxdata == NULL); + fileinfo->xndxdata = xndxdata = data; + } + else if (unlikely (shdr->sh_type == SHT_GNU_versym)) + { + assert (versymdata == 0); + fileinfo->versymdata = versymdata = data; + } + else if (unlikely (shdr->sh_type == SHT_GNU_verdef)) + { + size_t nversions; + + assert (verdefdata == 0); + fileinfo->verdefdata = verdefdata = data; + + /* Allocate the arrays flagging the use of the version and + to track of allocated names. */ + fileinfo->nverdef = nversions = shdr->sh_info; + /* We have NVERSIONS + 1 because the indeces used to access the + sectino start with one; zero represents local binding. */ + fileinfo->verdefused = (XElf_Versym *) + obstack_calloc (&ld_state.smem, + sizeof (XElf_Versym) * (nversions + 1)); + fileinfo->verdefent = (struct Ebl_Strent **) + obstack_alloc (&ld_state.smem, + sizeof (struct Ebl_Strent *) * (nversions + 1)); + } + else if (unlikely (shdr->sh_type == SHT_GNU_verneed)) + { + assert (verneeddata == 0); + fileinfo->verneeddata = verneeddata = data; + } + else if (unlikely (shdr->sh_type == SHT_DYNAMIC)) + { + assert (fileinfo->dynscn == NULL); + fileinfo->dynscn = fileinfo->scninfo[cnt].scn; + } + else if (unlikely (shdr->sh_type == SHT_GROUP)) + { + Elf_Scn *symscn; + XElf_Shdr_vardef (symshdr); + Elf_Data *symdata; + + if (FILEINFO_EHDR (fileinfo->ehdr).e_type != ET_REL) + error (EXIT_FAILURE, 0, gettext ("\ +%s: only files of type ET_REL might contain section groups"), + fileinfo->fname); + + fileinfo->scninfo[cnt].next = fileinfo->groups; + fileinfo->scninfo[cnt].grpid = cnt; + fileinfo->groups = &fileinfo->scninfo[cnt]; + + /* Determine the signature. We create a symbol record for + it. Only the name element is important. */ + fileinfo->scninfo[cnt].symbols = (struct symbol *) + obstack_calloc (&ld_state.smem, sizeof (struct symbol)); + + symscn = elf_getscn (fileinfo->elf, shdr->sh_link); + xelf_getshdr (symscn, symshdr); + symdata = elf_getdata (symscn, NULL); + if (symshdr != NULL) + { + XElf_Sym_vardef (sym); + + /* We don't need the section index and therefore we don't + have to use 'xelf_getsymshndx'. */ + xelf_getsym (symdata, shdr->sh_info, sym); + if (sym != NULL) + { + struct symbol *symbol = fileinfo->scninfo[cnt].symbols; + + symbol->name = elf_strptr (fileinfo->elf, symshdr->sh_link, + sym->st_name); + symbol->symidx = shdr->sh_info; + symbol->file = fileinfo; + } + } + if (fileinfo->scninfo[cnt].symbols->name == NULL) + error (EXIT_FAILURE, 0, gettext ("\ +%s: cannot determine signature of section group [%2zd] '%s': %s"), + fileinfo->fname, + elf_ndxscn (fileinfo->scninfo[cnt].scn), + elf_strptr (fileinfo->elf, fileinfo->shstrndx, + shdr->sh_name), + elf_errmsg (-1)); + + /* The 'used' flag is used to indicate when the information + in the section group is used to mark all other sections + as used. So it must not be true yet. */ + assert (fileinfo->scninfo[cnt].used == false); + } + else if (! SECTION_TYPE_P (&ld_state, shdr->sh_type) + && unlikely ((shdr->sh_flags & SHF_OS_NONCONFORMING) != 0)) + /* According to the gABI it is a fatal error if the file contains + a section with unknown type and the SHF_OS_NONCONFORMING flag + set. */ + error (EXIT_FAILURE, 0, + gettext ("%s: section '%s' has unknown type: %d"), + fileinfo->fname, + elf_strptr (fileinfo->elf, fileinfo->shstrndx, + shdr->sh_name), + (int) shdr->sh_type); + /* We don't have to add a few section types here. These will be + generated from scratch for the new output file. We also + don't add the sections of DSOs here since these sections are + not used in the resulting object file. */ + else if (likely (fileinfo->file_type == relocatable_file_type) + && likely (cnt > 0) + && likely (shdr->sh_type == SHT_PROGBITS + || shdr->sh_type == SHT_RELA + || shdr->sh_type == SHT_REL + || shdr->sh_type == SHT_NOTE + || shdr->sh_type == SHT_NOBITS + || shdr->sh_type == SHT_INIT_ARRAY + || shdr->sh_type == SHT_FINI_ARRAY + || shdr->sh_type == SHT_PREINIT_ARRAY)) + add_section (fileinfo, &fileinfo->scninfo[cnt]); + } + + /* Handle the symbols. Record defined and undefined symbols in the + hash table. In theory there can be a file without any symbol + table. */ + if (likely (symtabdata != NULL)) + { + /* In case this file contains merge-able sections we have to + locate the symbols which are in these sections. */ + fileinfo->has_merge_sections = has_merge_sections; + if (likely (has_merge_sections)) + { + fileinfo->symref = (struct symbol **) + obstack_calloc (&ld_state.smem, + nsymbols * sizeof (struct symbol *)); + + /* Only handle the local symbols here. */ + for (cnt = 0; cnt < nlocalsymbols; ++cnt) + { + Elf32_Word shndx; + XElf_Sym_vardef (sym); + + xelf_getsymshndx (symtabdata, xndxdata, cnt, sym, shndx); + if (sym == NULL) + { + /* This should never happen. */ + fprintf (stderr, gettext ("%s: invalid ELF file (%s:%d)\n"), + fileinfo->rfname, __FILE__, __LINE__); + return 1; + } + + if (likely (shndx != SHN_XINDEX)) + shndx = sym->st_shndx; + else if (unlikely (shndx == 0)) + { + fprintf (stderr, gettext ("%s: invalid ELF file (%s:%d)\n"), + fileinfo->rfname, __FILE__, __LINE__); + return 1; + } + + if (XELF_ST_TYPE (sym->st_info) != STT_SECTION + && (shndx < SHN_LORESERVE || shndx > SHN_HIRESERVE) + && (SCNINFO_SHDR (fileinfo->scninfo[shndx].shdr).sh_flags + & SHF_MERGE)) + { + /* Create a symbol record for this symbol and add it + to the list for this section. */ + struct symbol *newp; + + newp = (struct symbol *) + obstack_calloc (&ld_state.smem, sizeof (struct symbol)); + + newp->symidx = cnt; + newp->scndx = shndx; + newp->file = fileinfo; + fileinfo->symref[cnt] = newp; + + if (fileinfo->scninfo[shndx].symbols == NULL) + fileinfo->scninfo[shndx].symbols = newp->next_in_scn + = newp; + else + { + newp->next_in_scn + = fileinfo->scninfo[shndx].symbols->next_in_scn; + fileinfo->scninfo[shndx].symbols + = fileinfo->scninfo[shndx].symbols->next_in_scn = newp; + } + } + } + } + else + /* Create array with pointers to the symbol definitions. Note + that we only allocate memory for the non-local symbols + since we have no merge-able sections. But we store the + pointer as if it was for the whole symbol table. This + saves some memory. */ + fileinfo->symref = (struct symbol **) + obstack_calloc (&ld_state.smem, ((nsymbols - nlocalsymbols) + * sizeof (struct symbol *))) + - nlocalsymbols; + + /* Don't handle local symbols here. It's either not necessary + at all or has already happened. */ + for (cnt = nlocalsymbols; cnt < nsymbols; ++cnt) + { + XElf_Sym_vardef (sym); + Elf32_Word shndx; + xelf_getsymshndx (symtabdata, xndxdata, cnt, sym, shndx); + + if (sym == NULL) + { + /* This should never happen. */ + fprintf (stderr, gettext ("%s: invalid ELF file (%s:%d)\n"), + fileinfo->rfname, __FILE__, __LINE__); + return 1; + } + + if (likely (shndx != SHN_XINDEX)) + shndx = sym->st_shndx; + else if (unlikely (shndx == 0)) + { + fprintf (stderr, gettext ("%s: invalid ELF file (%s:%d)\n"), + fileinfo->rfname, __FILE__, __LINE__); + return 1; + } + + /* We ignore ABS symbols from DSOs. */ + // XXX Is this correct? + if (unlikely (shndx == SHN_ABS) && secttype == SHT_DYNSYM) + continue; + + /* If the DSO uses symbols determine whether this is the default + version. Otherwise we'll ignore the symbol. */ + if (versymdata != NULL) + { + XElf_Versym versym; + + if (xelf_getversym_copy (versymdata, cnt, versym) == NULL) + /* XXX Should we handle faulty input files more graceful? */ + assert (! "xelf_getversym failed"); + + if ((versym & 0x8000) != 0) + /* Ignore the symbol, it's not the default version. */ + continue; + } + + /* See whether we know anything about this symbol. */ + struct symbol search; + search.name = elf_strptr (fileinfo->elf, symstridx, sym->st_name); + unsigned long int hval = elf_hash (search.name); + + /* We ignore the symbols the linker generates. This are + _GLOBAL_OFFSET_TABLE_, _DYNAMIC. */ + // XXX This loop is hot and the following tests hardly ever match. + // XXX Maybe move the tests somewhere they are executed less often. + if (((unlikely (hval == 165832675) + && strcmp (search.name, "_DYNAMIC") == 0) + || (unlikely (hval == 102264335) + && strcmp (search.name, "_GLOBAL_OFFSET_TABLE_") == 0)) + && sym->st_shndx != SHN_UNDEF + /* If somebody defines such a variable in a relocatable we + don't ignore it. Let the user get what s/he deserves. */ + && fileinfo->file_type != relocatable_file_type) + continue; + + struct symbol *oldp = ld_symbol_tab_find (&ld_state.symbol_tab, + hval, &search); + struct symbol *newp; + if (likely (oldp == NULL)) + { + /* No symbol of this name know. Add it. */ + newp = (struct symbol *) obstack_alloc (&ld_state.smem, + sizeof (*newp)); + newp->name = search.name; + newp->size = sym->st_size; + newp->type = XELF_ST_TYPE (sym->st_info); + newp->symidx = cnt; + newp->outsymidx = 0; + newp->outdynsymidx = 0; + newp->scndx = shndx; + newp->file = fileinfo; + newp->defined = newp->scndx != SHN_UNDEF; + newp->common = newp->scndx == SHN_COMMON; + newp->weak = XELF_ST_BIND (sym->st_info) == STB_WEAK; + newp->added = 0; + newp->merged = 0; + newp->need_copy = 0; + newp->on_dsolist = 0; + newp->in_dso = secttype == SHT_DYNSYM; + newp->next_in_scn = NULL; +#ifndef NDEBUG + newp->next = NULL; + newp->previous = NULL; +#endif + + if (newp->scndx == SHN_UNDEF) + { + CDBL_LIST_ADD_REAR (ld_state.unresolved, newp); + ++ld_state.nunresolved; + if (! newp->weak) + ++ld_state.nunresolved_nonweak; + } + else if (newp->scndx == SHN_COMMON) + { + /* Store the alignment requirement. */ + newp->merge.value = sym->st_value; + + CDBL_LIST_ADD_REAR (ld_state.common_syms, newp); + } + + /* Insert the new symbol. */ + if (unlikely (ld_symbol_tab_insert (&ld_state.symbol_tab, + hval, newp) != 0)) + /* This cannot happen. */ + abort (); + + fileinfo->symref[cnt] = newp; + + /* We have a few special symbols to recognize. The symbols + _init and _fini are the initialization and finalization + functions respectively. They have to be made known in + the dynamic section and therefore we have to find out + now whether these functions exist or not. */ + if (hval == 6685956 && strcmp (newp->name, "_init") == 0) + ld_state.init_symbol = newp; + else if (hval == 6672457 && strcmp (newp->name, "_fini") == 0) + ld_state.fini_symbol = newp; + } + else if (unlikely (check_definition (sym, cnt, fileinfo, oldp) != 0)) + /* A fatal error (multiple definition of a symbol) + occurred, no need to continue. */ + return 1; + else + /* Use the previously allocated symbol record. It has + been updated in check_definition(), if necessary. */ + newp = fileinfo->symref[cnt] = oldp; + + /* Mark the section the symbol we need comes from as used. */ + if (shndx != SHN_UNDEF + && (shndx < SHN_LORESERVE || shndx > SHN_HIRESERVE)) + { + struct scninfo *ignore; + +#ifndef NDEBUG + size_t shnum; + assert (elf_getshnum (fileinfo->elf, &shnum) == 0); + assert (shndx < shnum); +#endif + + /* Mark section (and all dependencies) as used. */ + mark_section_used (&fileinfo->scninfo[shndx], shndx, &ignore); + + /* Check whether the section is merge-able. In this case we + have to record the symbol. */ + if (SCNINFO_SHDR (fileinfo->scninfo[shndx].shdr).sh_flags + & SHF_MERGE) + { + if (fileinfo->scninfo[shndx].symbols == NULL) + fileinfo->scninfo[shndx].symbols = newp->next_in_scn + = newp; + else + { + newp->next_in_scn + = fileinfo->scninfo[shndx].symbols->next_in_scn; + fileinfo->scninfo[shndx].symbols + = fileinfo->scninfo[shndx].symbols->next_in_scn = newp; + } + } + } + } + + /* This file is used. */ + if (likely (fileinfo->file_type == relocatable_file_type)) + { + if (unlikely (ld_state.relfiles == NULL)) + ld_state.relfiles = fileinfo->next = fileinfo; + else + { + fileinfo->next = ld_state.relfiles->next; + ld_state.relfiles = ld_state.relfiles->next = fileinfo; + } + + /* Update some summary information in the state structure. */ + ld_state.nsymtab += fileinfo->nsymtab; + ld_state.nlocalsymbols += fileinfo->nlocalsymbols; + } + else if (likely (fileinfo->file_type == dso_file_type)) + { + CSNGL_LIST_ADD_REAR (ld_state.dsofiles, fileinfo); + ++ld_state.ndsofiles; + + if (fileinfo->lazyload) + /* We have to create another dynamic section entry for the + DT_POSFLAG_1 entry. + + XXX Once more functionality than the lazyloading flag + are suppported the test must be extended. */ + ++ld_state.ndsofiles; + } + } + + return 0; +} + + +int +ld_handle_filename_list (struct filename_list *fnames) +{ + struct filename_list *runp; + int res = 0; + + for (runp = fnames; runp != NULL; runp = runp->next) + { + struct usedfiles *curp; + + /* Create a record for the new file. */ + curp = runp->real = ld_new_inputfile (runp->name, relocatable_file_type); + + /* Set flags for group handling. */ + runp->real->group_start = runp->group_start; + runp->real->group_end = runp->group_end; + + /* Read the file and everything else which comes up, including + handling groups. */ + do + res |= FILE_PROCESS (-1, curp, &ld_state, &curp); + while (curp != NULL); + } + + /* Free the list. */ + while (fnames != NULL) + { + runp = fnames; + fnames = fnames->next; + free (runp); + } + + return res; +} + + +/* Handle opening of the given file with ELF descriptor. */ +static int +open_elf (struct usedfiles *fileinfo, Elf *elf) +{ + int res = 0; + + if (elf == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get descriptor for ELF file (%s:%d): %s\n"), + __FILE__, __LINE__, elf_errmsg (-1)); + + if (unlikely (elf_kind (elf) == ELF_K_NONE)) + { + struct filename_list *fnames; + + /* We don't have to look at this file again. */ + fileinfo->status = closed; + + /* Let's see whether this is a linker script. */ + if (fileinfo->fd != -1) + /* Create a stream from the file handle we know. */ + ldin = fdopen (fileinfo->fd, "r"); + else + { + /* Get the memory for the archive member. */ + char *content; + size_t contentsize; + + /* Get the content of the file. */ + content = elf_rawfile (elf, &contentsize); + if (content == NULL) + { + fprintf (stderr, gettext ("%s: invalid ELF file (%s:%d)\n"), + fileinfo->rfname, __FILE__, __LINE__); + return 1; + } + + /* The content of the file is available in memory. Read the + memory region as a stream. */ + ldin = fmemopen (content, contentsize, "r"); + } + + /* No need for locking. */ + __fsetlocking (ldin, FSETLOCKING_BYCALLER); + + if (ldin == NULL) + error (EXIT_FAILURE, errno, gettext ("cannot open \"%s\""), + fileinfo->rfname); + + /* Parse the file. If it is a linker script no problems will be + reported. */ + ld_state.srcfiles = NULL; + ldlineno = 1; + ld_scan_version_script = 0; + ldin_fname = fileinfo->rfname; + res = ldparse (); + + fclose (ldin); + if (fileinfo->fd != -1 && !fileinfo->fd_passed) + { + /* We won't need the file descriptor again. */ + close (fileinfo->fd); + fileinfo->fd = -1; + } + + elf_end (elf); + + if (unlikely (res != 0)) + /* Something went wrong during parsing. */ + return 1; + + /* This is no ELF file. */ + fileinfo->elf = NULL; + + /* Now we have to handle eventual INPUT and GROUP statements in + the script. Read the files mentioned. */ + fnames = ld_state.srcfiles; + if (fnames != NULL) + { + struct filename_list *oldp; + + /* Convert the list into a normal single-linked list. */ + oldp = fnames; + fnames = fnames->next; + oldp->next = NULL; + + /* Remove the list from the state structure. */ + ld_state.srcfiles = NULL; + + if (unlikely (ld_handle_filename_list (fnames) != 0)) + return 1; + } + + return 0; + } + + /* Store the file info. */ + fileinfo->elf = elf; + + /* The file is ready for action. */ + fileinfo->status = opened; + + return 0; +} + + +static int +add_whole_archive (struct usedfiles *fileinfo) +{ + Elf *arelf; + Elf_Cmd cmd = ELF_C_READ_MMAP_PRIVATE; + int res = 0; + + while ((arelf = elf_begin (fileinfo->fd, cmd, fileinfo->elf)) != NULL) + { + Elf_Arhdr *arhdr = elf_getarhdr (arelf); + struct usedfiles *newp; + + if (arhdr == NULL) + abort (); + + /* Just to be sure; since these are no files in the archive + these names should never be returned. */ + assert (strcmp (arhdr->ar_name, "/") != 0); + assert (strcmp (arhdr->ar_name, "//") != 0); + + newp = ld_new_inputfile (arhdr->ar_name, relocatable_file_type); + newp->archive_file = fileinfo; + + if (unlikely (ld_state.trace_files)) + print_file_name (stdout, newp, 1, 1); + + /* This shows that this file is contained in an archive. */ + newp->fd = -1; + /* Store the ELF descriptor. */ + newp->elf = arelf; + /* Show that we are open for business. */ + newp->status = opened; + + /* Proces the file, add all the symbols etc. */ + res = file_process2 (newp); + if (unlikely (res != 0)) + break; + + /* Advance to the next archive element. */ + cmd = elf_next (arelf); + } + + return res; +} + + +static int +extract_from_archive (struct usedfiles *fileinfo) +{ + static int archive_seq; + int res = 0; + + /* This is an archive we are not using completely. Give it a + unique number. */ + fileinfo->archive_seq = ++archive_seq; + + /* If there are no unresolved symbols don't do anything. */ + if ((likely (ld_state.extract_rule == defaultextract) + && ld_state.nunresolved_nonweak == 0) + || (unlikely (ld_state.extract_rule == weakextract) + && ld_state.nunresolved == 0)) + return 0; + + Elf_Arsym *syms; + size_t nsyms; + + /* Get all the symbols. */ + syms = elf_getarsym (fileinfo->elf, &nsyms); + if (syms == NULL) + { + cannot_read_archive: + error (0, 0, gettext ("cannot read archive `%s': %s"), + fileinfo->rfname, elf_errmsg (-1)); + + /* We cannot use this archive anymore. */ + fileinfo->status = closed; + + return 1; + } + + /* Now add all the symbols to the hash table. Note that there + can potentially be duplicate definitions. We'll always use + the first definition. */ + // XXX Is this a compatible behavior? + bool any_used; + int nround = 0; + do + { + any_used = false; + + size_t cnt; + for (cnt = 0; cnt < nsyms; ++cnt) + { + struct symbol search = { .name = syms[cnt].as_name }; + struct symbol *sym = ld_symbol_tab_find (&ld_state.symbol_tab, + syms[cnt].as_hash, &search); + if (sym != NULL && ! sym->defined) + { + /* The symbol is referenced and not defined. */ + Elf *arelf; + Elf_Arhdr *arhdr; + struct usedfiles *newp; + + /* Find the archive member for this symbol. */ + if (unlikely (elf_rand (fileinfo->elf, syms[cnt].as_off) + != syms[cnt].as_off)) + goto cannot_read_archive; + + /* Note: no test of a failing 'elf_begin' call. That's fine + since 'elf'getarhdr' will report the problem. */ + arelf = elf_begin (fileinfo->fd, ELF_C_READ_MMAP_PRIVATE, + fileinfo->elf); + arhdr = elf_getarhdr (arelf); + if (arhdr == NULL) + goto cannot_read_archive; + + /* We have all the information and an ELF handle for the + archive member. Create the normal data structure for + a file now. */ + newp = ld_new_inputfile (obstack_strdup (&ld_state.smem, + arhdr->ar_name), + relocatable_file_type); + newp->archive_file = fileinfo; + + if (unlikely (ld_state.trace_files)) + print_file_name (stdout, newp, 1, 1); + + /* This shows that this file is contained in an archive. */ + newp->fd = -1; + /* Store the ELF descriptor. */ + newp->elf = arelf; + /* Show that we are open for business. */ + newp->status = in_archive; + + /* Now read the file and add all the symbols. */ + res = file_process2 (newp); + if (unlikely (res != 0)) + return res; + + any_used = true; + } + } + + if (++nround == 1) + { + /* This is an archive therefore it must have a number. */ + assert (fileinfo->archive_seq != 0); + ld_state.last_archive_used = fileinfo->archive_seq; + } + } + while (any_used); + + return res; +} + + +static int +file_process2 (struct usedfiles *fileinfo) +{ + int res; + + if (likely (elf_kind (fileinfo->elf) == ELF_K_ELF)) + { + /* The first time we get here we read the ELF header. */ +#if NATIVE_ELF != 0 + if (likely (fileinfo->ehdr == NULL)) +#else + if (likely (FILEINFO_EHDR (fileinfo->ehdr).e_type == ET_NONE)) +#endif + { + XElf_Ehdr *ehdr; +#if NATIVE_ELF != 0 + ehdr = xelf_getehdr (fileinfo->elf, fileinfo->ehdr); +#else + xelf_getehdr_copy (fileinfo->elf, ehdr, fileinfo->ehdr); +#endif + if (ehdr == NULL) + { + fprintf (stderr, gettext ("%s: invalid ELF file (%s:%d)\n"), + fileinfo->rfname, __FILE__, __LINE__); + fileinfo->status = closed; + return 1; + } + + if (FILEINFO_EHDR (fileinfo->ehdr).e_type != ET_REL + && unlikely (FILEINFO_EHDR (fileinfo->ehdr).e_type != ET_DYN)) + /* XXX Add ebl* function to query types which are allowed + to link in. */ + { + char buf[64]; + + print_file_name (stderr, fileinfo, 1, 0); + fprintf (stderr, + gettext ("file of type %s cannot be linked in\n"), + ebl_object_type_name (ld_state.ebl, + FILEINFO_EHDR (fileinfo->ehdr).e_type, + buf, sizeof (buf))); + fileinfo->status = closed; + return 1; + } + + /* Determine the section header string table section index. */ + if (unlikely (elf_getshstrndx (fileinfo->elf, &fileinfo->shstrndx) + < 0)) + { + fprintf (stderr, gettext ("\ +%s: cannot get section header string table index: %s\n"), + fileinfo->rfname, elf_errmsg (-1)); + fileinfo->status = closed; + return 1; + } + } + + /* Now handle the different types of files. */ + if (FILEINFO_EHDR (fileinfo->ehdr).e_type == ET_REL) + { + /* Add all the symbol. Relocatable files have symbol + tables. */ + res = add_relocatable_file (fileinfo, SHT_SYMTAB); + } + else + { + bool has_l_name = fileinfo->file_type == archive_file_type; + + assert (FILEINFO_EHDR (fileinfo->ehdr).e_type == ET_DYN); + + /* If the file is a DT_NEEDED dependency then the type is + already correctly specified. */ + if (fileinfo->file_type != dso_needed_file_type) + fileinfo->file_type = dso_file_type; + + /* We cannot use DSOs when generating relocatable objects. */ + if (ld_state.file_type == relocatable_file_type) + { + error (0, 0, gettext ("\ +cannot use DSO '%s' when generating relocatable object file"), + fileinfo->fname); + return 1; + } + + /* Add all the symbols. For DSOs we are looking at the + dynamic symbol table. */ + res = add_relocatable_file (fileinfo, SHT_DYNSYM); + + /* We always have to have a dynamic section. */ + assert (fileinfo->dynscn != NULL); + + /* We have to remember the dependencies for this object. It + is necessary to look them up. */ + XElf_Shdr_vardef (dynshdr); + xelf_getshdr (fileinfo->dynscn, dynshdr); + + Elf_Data *dyndata = elf_getdata (fileinfo->dynscn, NULL); + /* XXX Should we flag the failure to get the dynamic section? */ + if (dynshdr != NULL) + { + int cnt = dynshdr->sh_size / dynshdr->sh_entsize; + XElf_Dyn_vardef (dyn); + + while (--cnt >= 0) + { + xelf_getdyn (dyndata, cnt, dyn); + if (dyn != NULL) + { + if(dyn->d_tag == DT_NEEDED) + { + struct usedfiles *newp; + + newp = ld_new_inputfile (elf_strptr (fileinfo->elf, + dynshdr->sh_link, + dyn->d_un.d_val), + dso_needed_file_type); + + /* Enqueue the newly found dependencies. */ + // XXX Check that there not already a file with the + // same name. + CSNGL_LIST_ADD_REAR (ld_state.needed, newp); + } + else if (dyn->d_tag == DT_SONAME) + { + /* We use the DT_SONAME (this is what's there + for). */ + fileinfo->soname = elf_strptr (fileinfo->elf, + dynshdr->sh_link, + dyn->d_un.d_val); + has_l_name = false; + } + } + } + } + + /* Construct the file name if the DSO has no SONAME and the + file name comes from a -lXX parameter on the comment + line. */ + if (unlikely (has_l_name)) + { + /* The FNAME is the parameter the user specified on the + command line. We prepend "lib" and append ".so". */ + size_t len = strlen (fileinfo->fname) + 7; + char *newp; + + newp = (char *) obstack_alloc (&ld_state.smem, len); + strcpy (stpcpy (stpcpy (newp, "lib"), fileinfo->fname), ".so"); + + fileinfo->soname = newp; + } + } + } + else if (likely (elf_kind (fileinfo->elf) == ELF_K_AR)) + { + if (unlikely (ld_state.extract_rule == allextract)) + /* Which this option enabled we have to add all the object + files in the archive. */ + res = add_whole_archive (fileinfo); + else if (ld_state.file_type == relocatable_file_type) + { + /* When generating a relocatable object we don't find files + in archives. */ + if (verbose) + error (0, 0, gettext ("input file '%s' ignored"), fileinfo->fname); + + res = 0; + } + else + /* Extract only the members from the archive which are + currently referenced by unresolved symbols. */ + res = extract_from_archive (fileinfo); + } + else + /* This should never happen, we know about no other types. */ + abort (); + + return res; +} + + +/* Process a given file. The first parameter is a file descriptor for + the file which can be -1 to indicate the file has not yet been + found. The second parameter describes the file to be opened, the + last one is the state of the linker which among other information + contain the paths we look at. */ +static int +ld_generic_file_process (int fd, struct usedfiles *fileinfo, + struct ld_state *statep, struct usedfiles **nextp) +{ + int res = 0; + + /* By default we go to the next file in the list. */ + *nextp = fileinfo->next; + + /* Set the flag to signal we are looking for a group start. */ + if (unlikely (fileinfo->group_start)) + { + ld_state.group_start_requested = true; + fileinfo->group_start = false; + } + + /* If the file isn't open yet, open it now. */ + if (likely (fileinfo->status == not_opened)) + { + bool fd_passed = true; + + if (likely (fd == -1)) + { + /* Find the file ourselves. */ + int err = open_along_path (fileinfo); + if (unlikely (err != 0)) + /* We allow libraries and DSOs to be named more than once. + Don't report an error to the caller. */ + return err == EAGAIN ? 0 : err; + + fd_passed = false; + } + else + fileinfo->fd = fd; + + /* Remember where we got the descriptor from. */ + fileinfo->fd_passed = fd_passed; + + /* We found the file. Now test whether it is a file type we can + handle. + + XXX Do we have to have the ability to start from a given + position in the search path again to look for another file if + the one found has not the right type? */ + res = open_elf (fileinfo, elf_begin (fileinfo->fd, + is_dso_p (fileinfo->fd) + ? ELF_C_READ_MMAP + : ELF_C_READ_MMAP_PRIVATE, NULL)); + if (unlikely (res != 0)) + return res; + } + + /* Now that we have opened the file start processing it. */ + if (likely (fileinfo->status != closed)) + res = file_process2 (fileinfo); + + /* Determine which file to look at next. */ + if (unlikely (fileinfo->group_backref != NULL)) + { + /* We only go back if an archive other than the one we would go + back to has been used in the last round. */ + if (ld_state.last_archive_used > fileinfo->group_backref->archive_seq) + { + *nextp = fileinfo->group_backref; + ld_state.last_archive_used = 0; + } + else + { + /* If we come here this means that the archives we read so + far are not needed anymore. We can free some of the data + now. */ + struct usedfiles *runp = ld_state.archives; + + do + { + /* We don't need the ELF descriptor anymore. Unless there + are no files from the archive used this will not free + the whole file but only some data structures. */ + elf_end (runp->elf); + runp->elf = NULL; + + runp = runp->next; + } + while (runp != fileinfo->next); + } + } + else if (unlikely (fileinfo->group_end)) + { + /* This is the end of a group. We possibly of to go back. + Determine which file we would go back to and see whether it + makes sense. If there has not been an archive we don't have + to do anything. */ + if (!ld_state.group_start_requested) + { + if (ld_state.group_start_archive != ld_state.tailarchives) + /* The loop would include more than one archive, add the + pointer. */ + { + *nextp = ld_state.tailarchives->group_backref = + ld_state.group_start_archive; + ld_state.last_archive_used = 0; + } + else + /* We might still have to go back to the beginning of the + group if since the last archive other files have been + added. But we go back exactly once. */ + if (ld_state.tailarchives != fileinfo) + { + *nextp = ld_state.group_start_archive; + ld_state.last_archive_used = 0; + } + } + + /* Clear the flags. */ + ld_state.group_start_requested = false; + fileinfo->group_end = false; + } + + return res; +} + + +/* Library names passed to the linker as -lXX represent files named + libXX.YY. The YY part can have different forms, depending on the + platform. The generic set is .so and .a (in this order). */ +static const char ** +ld_generic_lib_extensions (struct ld_state *statep __attribute__ ((__unused__))) +{ + static const char *exts[] = + { + ".so", ".a", NULL + }; + + return exts; +} + + +/* Flag unresolved symbols. */ +static int +ld_generic_flag_unresolved (struct ld_state *statep) +{ + int retval = 0; + + if (ld_state.nunresolved_nonweak > 0) + { + /* Go through the list and determine the unresolved symbols. */ + struct symbol *first; + struct symbol *s; + + s = first = ld_state.unresolved->next; + do + { + if (! s->defined && ! s->weak) + { + /* Two special symbol we recognize: the symbol for the + GOT and the dynamic section. */ + if (strcmp (s->name, "_GLOBAL_OFFSET_TABLE_") == 0 + || strcmp (s->name, "_DYNAMIC") == 0) + { + /* We will have to fill in more information later. */ + ld_state.need_got = true; + + /* Remember that we found it. */ + if (s->name[1] == 'G') + ld_state.got_symbol = s; + else + ld_state.dyn_symbol = s; + } + else if (ld_state.file_type != dso_file_type || !ld_state.nodefs) + { + /* XXX The error message should get better. It should use + the debugging information if present to tell where in the + sources the undefined reference is. */ + error (0, 0, gettext ("undefined symbol `%s' in %s"), + s->name, s->file->fname); + + retval = 1; + } + } + + /* We cannot decide here what to do with undefined + references which will come from DSO since we do not know + what kind of symbol we expect. Only when looking at the + relocations we can see whether we need a PLT entry or + only a GOT entry. */ + + s = s->next; + } + while (s != first); + } + + return retval; +} + + +/* Close the given file. */ +static int +ld_generic_file_close (struct usedfiles *fileinfo, struct ld_state *statep) +{ + /* Close the ELF descriptor. */ + elf_end (fileinfo->elf); + + /* If we have opened the file descriptor close it. But we might + have done this already in which case FD is -1. */ + if (!fileinfo->fd_passed && fileinfo->fd != -1) + close (fileinfo->fd); + + /* We allocated the resolved file name. */ + if (fileinfo->fname != fileinfo->rfname) + free ((char *) fileinfo->rfname); + + return 0; +} + + +static void +new_generated_scn (enum scn_kind kind, const char *name, int type, int flags, + int entsize, int align) +{ + struct scnhead *newp; + + newp = (struct scnhead *) obstack_calloc (&ld_state.smem, + sizeof (struct scnhead)); + newp->kind = kind; + newp->name = name; + newp->nameent = ebl_strtabadd (ld_state.shstrtab, name, 0); + newp->type = type; + newp->flags = flags; + newp->entsize = entsize; + newp->align = align; + newp->grp_signature = NULL; + newp->used = true; + + /* All is well. Create now the data for the section and insert it + into the section table. */ + ld_section_tab_insert (&ld_state.section_tab, elf_hash (name), newp); +} + + +/* Create the sections which are generated by the linker and are not + present in the input file. */ +static void +ld_generic_generate_sections (struct ld_state *statep) +{ + /* The relocation section type. */ + int rel_type = REL_TYPE (&ld_state) == DT_REL ? SHT_REL : SHT_RELA; + + /* When building dynamically linked object we have to include a + section containing a string describing the interpreter. This + should be at the very beginning of the file together with the + other information the ELF loader (kernel or wherever) has to look + at. We put it as the first section in the file. + + We also have to create the dynamic segment which is a special + section the dynamic linker locates through an entry in the + program header. */ + if (dynamically_linked_p ()) + { + int ndt_needed; + /* Use any versioning (defined or required)? */ + bool use_versioning = false; + /* Use version requirements? */ + bool need_version = false; + + /* First the .interp section. */ + new_generated_scn (scn_dot_interp, ".interp", SHT_PROGBITS, SHF_ALLOC, + 0, 1); + + /* Now the .dynamic section. */ + new_generated_scn (scn_dot_dynamic, ".dynamic", SHT_DYNAMIC, + DYNAMIC_SECTION_FLAGS (&ld_state), + xelf_fsize (ld_state.outelf, ELF_T_DYN, 1), + xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1)); + + /* We will need in any case the dynamic symbol table (even in + the unlikely case that no symbol is exported or referenced + from a DSO). */ + ld_state.need_dynsym = true; + new_generated_scn (scn_dot_dynsym, ".dynsym", SHT_DYNSYM, SHF_ALLOC, + xelf_fsize (ld_state.outelf, ELF_T_SYM, 1), + xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1)); + /* It comes with a string table. */ + new_generated_scn (scn_dot_dynstr, ".dynstr", SHT_STRTAB, SHF_ALLOC, + 0, 1); + /* And a hashing table. */ + // XXX For Linux/Alpha we need other sizes unless they change... + new_generated_scn (scn_dot_hash, ".hash", SHT_HASH, SHF_ALLOC, + sizeof (Elf32_Word), sizeof (Elf32_Word)); + + /* By default we add all DSOs provided on the command line. If + the user added '-z ignore' to the command line we only add + those which are actually used. */ + ndt_needed = ld_state.ignore_unused_dsos ? 0 : ld_state.ndsofiles; + + /* Create the section associated with the PLT if necessary. */ + if (ld_state.nplt > 0) + { + /* Create the .plt section. */ + /* XXX We might need a function which returns the section flags. */ + new_generated_scn (scn_dot_plt, ".plt", SHT_PROGBITS, + SHF_ALLOC | SHF_EXECINSTR, + /* XXX Is the size correct? */ + xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1), + xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1)); + + /* Create the relocation section for the .plt. This is always + separate even if the other relocation sections are combined. */ + new_generated_scn (scn_dot_pltrel, ".rel.plt", rel_type, SHF_ALLOC, + rel_type == SHT_REL + ? xelf_fsize (ld_state.outelf, ELF_T_REL, 1) + : xelf_fsize (ld_state.outelf, ELF_T_RELA, 1), + xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1)); + + /* This means we will also need the .got section. */ + ld_state.need_got = true; + + /* Mark all used DSOs as used. Determine whether any referenced + object uses symbol versioning. */ + if (ld_state.from_dso != NULL) + { + struct symbol *srunp = ld_state.from_dso; + + do + { + srunp->file->used = true; + + if (srunp->file->verdefdata != NULL) + { + XElf_Versym versym; + + /* The input DSO uses versioning. */ + use_versioning = true; + /* We reference versions. */ + need_version = true; + + if (xelf_getversym_copy (srunp->file->versymdata, + srunp->symidx, versym) == NULL) + assert (! "xelf_getversym failed"); + + /* We cannot link explicitly with an older + version of a symbol. */ + assert ((versym & 0x8000) == 0); + /* We cannot reference local (index 0) or plain + global (index 1) versions. */ + assert (versym > 1); + + /* Check whether we have already seen the + version and if not add it to the referenced + versions in the output file. */ + if (! srunp->file->verdefused[versym]) + { + srunp->file->verdefused[versym] = 1; + + if (++srunp->file->nverdefused == 1) + /* Count the file if it is using versioning. */ + ++ld_state.nverdeffile; + ++ld_state.nverdefused; + } + } + } + while ((srunp = srunp->next) != ld_state.from_dso); + } + + /* Create the sections used to record version dependencies. */ + if (need_version) + new_generated_scn (scn_dot_version_r, ".gnu.version_r", + SHT_GNU_verneed, SHF_ALLOC, 0, + xelf_fsize (ld_state.outelf, ELF_T_WORD, 1)); + + /* Now count the used DSOs since this is what the user + wants. */ + ndt_needed = 0; + if (ld_state.ndsofiles > 0) + { + struct usedfiles *frunp = ld_state.dsofiles; + + do + if (! ld_state.ignore_unused_dsos || frunp->used) + { + ++ndt_needed; + if (frunp->lazyload) + /* We have to create another dynamic section + entry for the DT_POSFLAG_1 entry. + + XXX Once more functionality than the + lazyloading flag are suppported the test + must be extended. */ + ++ndt_needed; + } + while ((frunp = frunp->next) != ld_state.dsofiles); + } + } + + if (use_versioning) + new_generated_scn (scn_dot_version, ".gnu.version", SHT_GNU_versym, + SHF_ALLOC, + xelf_fsize (ld_state.outelf, ELF_T_HALF, 1), + xelf_fsize (ld_state.outelf, ELF_T_HALF, 1)); + + /* We need some entries all the time. */ + ld_state.ndynamic = (7 + (ld_state.runpath != NULL + || ld_state.rpath != NULL) + + ndt_needed + + (ld_state.init_symbol != NULL ? 1 : 0) + + (ld_state.fini_symbol != NULL ? 1 : 0) + + (use_versioning ? 1 : 0) + + (need_version ? 2 : 0) + + (ld_state.nplt > 0 ? 4 : 0) + + (ld_state.relsize_total > 0 ? 3 : 0)); + } + + /* When creating a relocatable file or when we are not stripping the + output file we create a symbol table. */ + ld_state.need_symtab = (ld_state.file_type == relocatable_file_type + || ld_state.strip == strip_none); + + /* Add the .got section if needed. */ + if (ld_state.need_got) + /* XXX We might need a function which returns the section flags. */ + new_generated_scn (scn_dot_got, ".got", SHT_PROGBITS, + SHF_ALLOC | SHF_WRITE, + xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1), + xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1)); + + /* Add the .rel.dyn section. */ + if (ld_state.relsize_total > 0) + new_generated_scn (scn_dot_dynrel, ".rel.dyn", rel_type, SHF_ALLOC, + rel_type == SHT_REL + ? xelf_fsize (ld_state.outelf, ELF_T_REL, 1) + : xelf_fsize (ld_state.outelf, ELF_T_RELA, 1), + xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1)); +} + + +/* Callback function registered with on_exit to make sure the temporary + files gets removed if something goes wrong. */ +static void +remove_tempfile (int status, void *arg) +{ + if (status != 0 && ld_state.tempfname != NULL) + unlink (ld_state.tempfname); +} + + +/* Create the output file. The file name is given or "a.out". We + create as much of the ELF structure as possible. */ +static int +ld_generic_open_outfile (struct ld_state *statep, int machine, int klass, + int data) +{ + /* We do not create the new file right away with the final name. + This would destroy an existing file with this name before a + replacement is finalized. We create instead a temporary file in + the same directory. */ + if (ld_state.outfname == NULL) + ld_state.outfname = "a.out"; + + size_t outfname_len = strlen (ld_state.outfname); + char *tempfname = (char *) obstack_alloc (&ld_state.smem, + outfname_len + sizeof (".XXXXXX")); + ld_state.tempfname = tempfname; + + int fd; + int try = 0; + while (1) + { + strcpy (mempcpy (tempfname, ld_state.outfname, outfname_len), ".XXXXXX"); + + /* The useof mktemp() here is fine. We do not want to use + mkstemp() since then the umask isn't used. And the output + file will have these permissions anyhow. Any intruder could + change the file later if it would be possible now. */ + if (mktemp (tempfname) != NULL + && (fd = open (tempfname, O_RDWR | O_EXCL | O_CREAT | O_NOFOLLOW, + ld_state.file_type == relocatable_file_type + ? DEFFILEMODE : ACCESSPERMS)) != -1) + break; + + /* Failed this round. We keep trying a number of times. */ + if (++try >= 10) + error (EXIT_FAILURE, errno, gettext ("cannot create output file")); + } + ld_state.outfd = fd; + + /* Make sure we remove the temporary file in case something goes + wrong. */ + on_exit (remove_tempfile, NULL); + + /* Create the ELF file data for the output file. */ + Elf *elf = ld_state.outelf = elf_begin (fd, + conserve_memory + ? ELF_C_WRITE : ELF_C_WRITE_MMAP, + NULL); + if (elf == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create ELF descriptor for output file: %s"), + elf_errmsg (-1)); + + /* Create the basic data structures. */ + if (! xelf_newehdr (elf, klass)) + /* Couldn't create the ELF header. Very bad. */ + error (EXIT_FAILURE, 0, + gettext ("could not create ELF header for output file: %s"), + elf_errmsg (-1)); + + /* And get the current header so that we can modify it. */ + XElf_Ehdr_vardef (ehdr); + xelf_getehdr (elf, ehdr); + assert (ehdr != NULL); + + /* Set the machine type. */ + ehdr->e_machine = machine; + + /* Modify it according to the info we have here and now. */ + if (ld_state.file_type == executable_file_type) + ehdr->e_type = ET_EXEC; + else if (ld_state.file_type == dso_file_type) + ehdr->e_type = ET_DYN; + else + { + assert (ld_state.file_type == relocatable_file_type); + ehdr->e_type = ET_REL; + } + + /* Set the ELF version. */ + ehdr->e_version = EV_CURRENT; + + /* Set the endianness. */ + ehdr->e_ident[EI_DATA] = data; + + /* Write the ELF header information back. */ + (void) xelf_update_ehdr (elf, ehdr); + + return 0; +} + + +/* We compute the offsets of the various copied objects and the total + size of the memory needed. */ +// XXX The method used here is simple: go from front to back and pack +// the objects in this order. A more space efficient way would +// actually trying to pack the objects as dense as possible. But this +// is more expensive. +static void +compute_copy_reloc_offset (XElf_Shdr *shdr) +{ + struct symbol *runp = ld_state.from_dso; + assert (runp != NULL); + + XElf_Off maxalign = 1; + XElf_Off offset = 0; + + do + if (runp->need_copy) + { + /* Determine alignment for the symbol. */ + // XXX The question is how? The symbol record itself does not + // have the information. So we have to be conservative and + // assume the alignment of the section the symbol is in. + + // XXX We can be more precise. Use the offset from the beginning + // of the section and determine the largest power of two with + // module zero. + XElf_Off symalign = MAX (SCNINFO_SHDR (runp->file->scninfo[runp->scndx].shdr).sh_addralign, 1); + /* Keep track of the maximum alignment requirement. */ + maxalign = MAX (maxalign, symalign); + + /* Align current position. */ + offset = (offset + symalign - 1) & ~(symalign - 1); + + runp->merge.value = offset; + + offset += runp->size; + } + while ((runp = runp->next) != ld_state.from_dso); + + shdr->sh_type = SHT_NOBITS; + shdr->sh_size = offset; + shdr->sh_addralign = maxalign; +} + + +static void +compute_common_symbol_offset (XElf_Shdr *shdr) +{ + struct symbol *runp = ld_state.common_syms; + assert (runp != NULL); + + XElf_Off maxalign = 1; + XElf_Off offset = 0; + + do + { + /* Determine alignment for the symbol. */ + XElf_Off symalign = runp->merge.value; + + /* Keep track of the maximum alignment requirement. */ + maxalign = MAX (maxalign, symalign); + + /* Align current position. */ + offset = (offset + symalign - 1) & ~(symalign - 1); + + runp->merge.value = offset; + + offset += runp->size; + } + while ((runp = runp->next) != ld_state.common_syms); + + shdr->sh_type = SHT_NOBITS; + shdr->sh_size = offset; + shdr->sh_addralign = maxalign; +} + + +static void +sort_sections_generic (void) +{ + /* XXX TBI */ + abort (); +} + + +static int +match_section (const char *osectname, struct filemask_section_name *sectmask, + struct scnhead **scnhead, bool new_section, size_t segment_nr) +{ + struct scninfo *prevp; + struct scninfo *runp; + struct scninfo *notused; + + if (fnmatch (sectmask->section_name->name, (*scnhead)->name, 0) != 0) + /* The section name does not match. */ + return new_section; + + /* If this is a section generated by the linker it doesn't contain + the regular information (i.e., input section data etc) and must + be handle special. */ + if ((*scnhead)->kind != scn_normal) + { + (*scnhead)->name = osectname; + (*scnhead)->segment_nr = segment_nr; + + /* We have to count note section since they get their own + program header entry. */ + if ((*scnhead)->type == SHT_NOTE) + ++ld_state.nnotesections; + + ld_state.allsections[ld_state.nallsections++] = (*scnhead); + return true; + } + + /* Now we have to match the file names of the input files. Some of + the sections here might not match. */ + runp = (*scnhead)->last->next; + prevp = (*scnhead)->last; + notused = NULL; + + do + { + /* Base of the file name the section comes from. */ + const char *brfname = basename (runp->fileinfo->rfname); + + /* If the section isn't used, the name doesn't match the positive + inclusion list or the name does match the negative inclusion + list, ignore the section. */ + if (!runp->used + || (sectmask->filemask != NULL + && fnmatch (sectmask->filemask, brfname, 0) != 0) + || (sectmask->excludemask != NULL + && fnmatch (sectmask->excludemask, brfname, 0) == 0)) + { + /* This file does not match the file name masks. */ + if (notused == NULL) + notused = runp; + + prevp = runp; + runp = runp->next; + if (runp == notused) + runp = NULL; + } + /* The section fulfills all requirements, add it to the output + file with the correct section name etc. */ + else + { + struct scninfo *found = runp; + + /* Remove this input section data buffer from the list. */ + if (prevp != runp) + runp = prevp->next = runp->next; + else + { + free (*scnhead); + *scnhead = NULL; + runp = NULL; + } + + /* Create a new section for the output file if the 'new_section' + flag says so. Otherwise append the buffer to the last + section which we created in one of the last calls. */ + if (new_section) + { + struct scnhead *newp; + + newp = (struct scnhead *) obstack_calloc (&ld_state.smem, + sizeof (*newp)); + newp->kind = scn_normal; + newp->name = osectname; + newp->type = SCNINFO_SHDR (found->shdr).sh_type; + newp->flags = SCNINFO_SHDR (found->shdr).sh_flags; + newp->segment_nr = segment_nr; + newp->last = found->next = found; + newp->used = true; + newp->relsize = found->relsize; + newp->entsize = SCNINFO_SHDR (found->shdr).sh_entsize; + + /* We have to count note section since they get their own + program header entry. */ + if (newp->type == SHT_NOTE) + ++ld_state.nnotesections; + + ld_state.allsections[ld_state.nallsections++] = newp; + new_section = false; + } + else + { + struct scnhead *queued; + + queued = ld_state.allsections[ld_state.nallsections - 1]; + + found->next = queued->last->next; + queued->last = queued->last->next = found; + + /* If the linker script forces us to add incompatible + sections together do so. But reflect this in the + type and flags of the resulting file. */ + if (queued->type != SCNINFO_SHDR (found->shdr).sh_type) + /* XXX Any better choice? */ + queued->type = SHT_PROGBITS; + if (queued->flags != SCNINFO_SHDR (found->shdr).sh_flags) + queued->flags = ebl_sh_flags_combine (ld_state.ebl, + queued->flags, + SCNINFO_SHDR (found->shdr).sh_flags); + + /* Accumulate the relocation section size. */ + queued->relsize += found->relsize; + } + } + } + while (runp != NULL); + + return new_section; +} + + +static void +sort_sections_lscript (void) +{ + struct scnhead *temp[ld_state.nallsections]; + + /* Make a copy of the section head pointer array. */ + memcpy (temp, ld_state.allsections, + ld_state.nallsections * sizeof (temp[0])); + size_t nallsections = ld_state.nallsections; + + /* Convert the output segment list in a single-linked list. */ + struct output_segment *segment = ld_state.output_segments->next; + ld_state.output_segments->next = NULL; + ld_state.output_segments = segment; + + /* Put the sections in the correct order in the array in the state + structure. This might involve merging of sections and also + renaming the containing section in the output file. */ + ld_state.nallsections = 0; + size_t segment_nr; + size_t last_writable = ~0ul; + for (segment_nr = 0; segment != NULL; segment = segment->next, ++segment_nr) + { + struct output_rule *orule; + + for (orule = segment->output_rules; orule != NULL; orule = orule->next) + if (orule->tag == output_section) + { + struct input_rule *irule; + bool new_section = true; + + for (irule = orule->val.section.input; irule != NULL; + irule = irule->next) + if (irule->tag == input_section) + { + size_t cnt; + + for (cnt = 0; cnt < nallsections; ++cnt) + if (temp[cnt] != NULL) + new_section = + match_section (orule->val.section.name, + irule->val.section, &temp[cnt], + new_section, segment_nr); + } + } + + if ((segment->mode & PF_W) != 0) + last_writable = ld_state.nallsections - 1; + } + + /* In case we have to create copy relocations or we have common + symbols, find the last writable segment and add one more data + block. It will be a NOBITS block and take up no disk space. + This is why it is important to get the last block. */ + if (ld_state.ncopy > 0 || ld_state.common_syms != NULL) + { + if (last_writable == ~0ul) + error (EXIT_FAILURE, 0, "no writable segment"); + + if (ld_state.allsections[last_writable]->type != SHT_NOBITS) + { + /* Make room in the ALLSECTIONS array for a new section. + There is guaranteed room in the array. We add the new + entry after the last writable section. */ + ++last_writable; + memmove (&ld_state.allsections[last_writable + 1], + &ld_state.allsections[last_writable], + (ld_state.nallsections - last_writable) + * sizeof (ld_state.allsections[0])); + + ld_state.allsections[last_writable] = (struct scnhead *) + obstack_calloc (&ld_state.smem, sizeof (struct scnhead)); + + /* Name for the new section. */ + ld_state.allsections[last_writable]->name = ".bss"; + /* Type: NOBITS. */ + ld_state.allsections[last_writable]->type = SHT_NOBITS; + /* Same segment as the last writable section. */ + ld_state.allsections[last_writable]->segment_nr + = ld_state.allsections[last_writable - 1]->segment_nr; + } + } + + /* Create common symbol data block. */ + if (ld_state.ncopy > 0) + { +#if NATIVE_ELF + struct scninfo *si = (struct scninfo *) + obstack_calloc (&ld_state.smem, sizeof (*si) + sizeof (XElf_Shdr)); + si->shdr = (XElf_Shdr *) (si + 1); +#else + struct scninfo *si = (struct scninfo *) obstack_calloc (&ld_state.smem, + sizeof (*si)); +#endif + + /* Get the information regarding the symbols with copy relocations. */ + compute_copy_reloc_offset (&SCNINFO_SHDR (si->shdr)); + + /* This section is needed. */ + si->used = true; + /* Remember for later the section data structure. */ + ld_state.copy_section = si; + + if (likely (ld_state.allsections[last_writable]->last != NULL)) + { + si->next = ld_state.allsections[last_writable]->last->next; + ld_state.allsections[last_writable]->last->next = si; + ld_state.allsections[last_writable]->last = si; + } + else + ld_state.allsections[last_writable]->last = si->next = si; + } + + /* Create common symbol data block. */ + if (ld_state.common_syms != NULL) + { +#if NATIVE_ELF + struct scninfo *si = (struct scninfo *) + obstack_calloc (&ld_state.smem, sizeof (*si) + sizeof (XElf_Shdr)); + si->shdr = (XElf_Shdr *) (si + 1); +#else + struct scninfo *si = (struct scninfo *) obstack_calloc (&ld_state.smem, + sizeof (*si)); +#endif + + /* Get the information regarding the symbols with copy relocations. */ + compute_common_symbol_offset (&SCNINFO_SHDR (si->shdr)); + + /* This section is needed. */ + si->used = true; + /* Remember for later the section data structure. */ + ld_state.common_section = si; + + if (likely (ld_state.allsections[last_writable]->last != NULL)) + { + si->next = ld_state.allsections[last_writable]->last->next; + ld_state.allsections[last_writable]->last->next = si; + ld_state.allsections[last_writable]->last = si; + } + else + ld_state.allsections[last_writable]->last = si->next = si; + } +} + + +/* Create the output sections now. This requires knowledge about all + the sections we will need. It may be necessary to sort sections in + the order they are supposed to appear in the executable. The + sorting use many different kinds of information to optimize the + resulting binary. Important is to respect segment boundaries and + the needed alignment. The mode of the segments will be determined + afterwards automatically by the output routines. + + The generic sorting routines work in one of two possible ways: + + - if a linker script specifies the sections to be used in the + output and assigns them to a segment this information is used; + + - otherwise the linker will order the sections based on permissions + and some special knowledge about section names.*/ +static void +ld_generic_create_sections (struct ld_state *statep) +{ + struct scngroup *groups; + size_t cnt; + + /* For relocatable object we don't have to bother sorting the + sections and we do want to preserve the relocation sections as + they appear in the input files. */ + if (ld_state.file_type != relocatable_file_type) + { + /* Collect all the relocation sections. They are handled + separately. */ + struct scninfo *list = NULL; + for (cnt = 0; cnt < ld_state.nallsections; ++cnt) + if ((ld_state.allsections[cnt]->type == SHT_REL + || ld_state.allsections[cnt]->type == SHT_RELA) + /* The generated relocation sections are not of any + interest here. */ + && ld_state.allsections[cnt]->last != NULL) + { + if (list == NULL) + list = ld_state.allsections[cnt]->last; + else + { + /* Merge the sections list. */ + struct scninfo *first = list->next; + list->next = ld_state.allsections[cnt]->last->next; + ld_state.allsections[cnt]->last->next = first; + list = ld_state.allsections[cnt]->last; + } + + /* Remove the entry from the section list. */ + ld_state.allsections[cnt] = NULL; + } + ld_state.rellist = list; + + if (ld_state.output_segments == NULL) + /* Sort using builtin rules. */ + sort_sections_generic (); + else + sort_sections_lscript (); + } + + /* Now iterate over the input sections and create the sections in the + order they are required in the output file. */ + for (cnt = 0; cnt < ld_state.nallsections; ++cnt) + { + struct scnhead *head = ld_state.allsections[cnt]; + Elf_Scn *scn; + XElf_Shdr_vardef (shdr); + + /* Don't handle unused sections. */ + if (!head->used) + continue; + + /* We first have to create the section group if necessary. + Section group sections must come (in section index order) + before any of the section contained. This all is necessary + only for relocatable object as other object types are not + allowed to contain section groups. */ + if (ld_state.file_type == relocatable_file_type + && unlikely (head->flags & SHF_GROUP)) + { + /* There is at least one section which is contained in a + section group in the input file. This means we must + create a section group here as well. The only problem is + that not all input files have to have to same kind of + partitioning of the sections. I.e., sections A and B in + one input file and sections B and C in another input file + can be in one group. That will result in a group + containing the sections A, B, and C in the output + file. */ + struct scninfo *runp; + Elf32_Word here_groupidx = 0; + struct scngroup *here_group; + struct member *newp; + + /* First check whether any section is already in a group. + In this case we have to add this output section, too. */ + runp = head->last; + do + { + assert (runp->grpid != 0); + + here_groupidx = runp->fileinfo->scninfo[runp->grpid].outscnndx; + if (here_groupidx != 0) + break; + } + while ((runp = runp->next) != head->last); + + if (here_groupidx == 0) + { + /* We need a new section group section. */ + scn = elf_newscn (ld_state.outelf); + xelf_getshdr (scn, shdr); + if (shdr == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + here_group = (struct scngroup *) xmalloc (sizeof (*here_group)); + here_group->outscnidx = here_groupidx = elf_ndxscn (scn); + here_group->nscns = 0; + here_group->member = NULL; + here_group->next = ld_state.groups; + /* Pick a name for the section. To keep it meaningful + we use a name used in the input files. If the + section group in the output file should contain + section which were in section groups of different + names in the input files this is the users + problem. */ + here_group->nameent + = ebl_strtabadd (ld_state.shstrtab, + elf_strptr (runp->fileinfo->elf, + runp->fileinfo->shstrndx, + SCNINFO_SHDR (runp->shdr).sh_name), + 0); + /* Signature symbol. */ + here_group->symbol + = runp->fileinfo->scninfo[runp->grpid].symbols; + + ld_state.groups = here_group; + } + else + { + /* Search for the group with this index. */ + here_group = ld_state.groups; + while (here_group->outscnidx != here_groupidx) + here_group = here_group->next; + } + + /* Add the new output section. */ + newp = (struct member *) alloca (sizeof (*newp)); + newp->scn = head; +#ifndef NDT_NEEDED + newp->next = NULL; +#endif + CSNGL_LIST_ADD_REAR (here_group->member, newp); + ++here_group->nscns; + + /* Store the section group index in all input files. */ + runp = head->last; + do + { + assert (runp->grpid != 0); + + if (runp->fileinfo->scninfo[runp->grpid].outscnndx == 0) + runp->fileinfo->scninfo[runp->grpid].outscnndx = here_groupidx; + else + assert (runp->fileinfo->scninfo[runp->grpid].outscnndx + == here_groupidx); + } + while ((runp = runp->next) != head->last); + } + + /* We'll use this section so get it's name in the section header + string table. */ + if (head->kind == scn_normal) + head->nameent = ebl_strtabadd (ld_state.shstrtab, head->name, 0); + + /* Create a new section in the output file and add all data + from all the sections we read. */ + scn = elf_newscn (ld_state.outelf); + head->scnidx = elf_ndxscn (scn); + xelf_getshdr (scn, shdr); + if (shdr == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + assert (head->type != SHT_NULL); + assert (head->type != SHT_SYMTAB); + assert (head->type != SHT_DYNSYM || head->kind != scn_normal); + assert (head->type != SHT_STRTAB || head->kind != scn_normal); + assert (head->type != SHT_GROUP); + shdr->sh_type = head->type; + shdr->sh_flags = head->flags; + shdr->sh_addralign = head->align; + shdr->sh_entsize = head->entsize; + assert (shdr->sh_entsize != 0 || (shdr->sh_flags & SHF_MERGE) == 0); + (void) xelf_update_shdr (scn, shdr); + + /* We have to know the section index of the dynamic symbol table + right away. */ + if (head->kind == scn_dot_dynsym) + ld_state.dynsymscnidx = elf_ndxscn (scn); + } + + /* Actually create the section group sections. */ + groups = ld_state.groups; + while (groups != NULL) + { + Elf_Scn *scn; + Elf_Data *data; + Elf32_Word *grpdata; + struct member *runp; + + scn = elf_getscn (ld_state.outelf, groups->outscnidx); + assert (scn != NULL); + + data = elf_newdata (scn); + if (data == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + data->d_size = (groups->nscns + 1) * sizeof (Elf32_Word); + data->d_buf = grpdata = (Elf32_Word *) xmalloc (data->d_size); + data->d_type = ELF_T_WORD; + data->d_version = EV_CURRENT; + data->d_off = 0; + /* XXX What better to use? */ + data->d_align = sizeof (Elf32_Word); + + /* The first word in the section is the flag word. */ + /* XXX Set COMDATA flag is necessary. */ + grpdata[0] = 0; + + runp = groups->member->next; + cnt = 1; + do + /* Fill in the index of the section. */ + grpdata[cnt++] = runp->scn->scnidx; + while ((runp = runp->next) != groups->member->next); + + groups = groups->next; + } +} + + +static bool +reduce_symbol_p (XElf_Sym *sym, struct Ebl_Strent *strent) +{ + const char *str; + const char *version; + struct id_list search; + struct id_list *verp; + bool result = ld_state.default_bind_local; + + if (XELF_ST_BIND (sym->st_info) == STB_LOCAL || sym->st_shndx == SHN_UNDEF) + /* We don't have to do anything to local symbols here. */ + /* XXX Any section value in [SHN_LORESERVER,SHN_XINDEX) need + special treatment? */ + return false; + + /* XXX Handle other symbol bindings. */ + assert (XELF_ST_BIND (sym->st_info) == STB_GLOBAL + || XELF_ST_BIND (sym->st_info) == STB_WEAK); + + str = ebl_string (strent); + version = strchr (str, VER_CHR); + if (version != NULL) + { + search.id = strndupa (str, version - str); + if (*++version == VER_CHR) + /* Skip the second '@' signalling a default definition. */ + ++version; + } + else + { + search.id = str; + version = ""; + } + + verp = ld_version_str_tab_find (&ld_state.version_str_tab, + elf_hash (search.id), &search); + while (verp != NULL) + { + /* We have this symbol in the version hash table. Now match the + version name. */ + if (strcmp (verp->u.s.versionname, version) == 0) + /* Match! */ + return verp->u.s.local; + + verp = verp->next; + } + + /* XXX Add test for wildcard version symbols. */ + + return result; +} + + +static XElf_Addr +eval_expression (struct expression *expr, XElf_Addr addr) +{ + XElf_Addr val = ~((XElf_Addr) 0); + + switch (expr->tag) + { + case exp_num: + val = expr->val.num; + break; + + case exp_sizeof_headers: + { + /* The 'elf_update' call determine the offset of the first + section. The the size of the header. */ + XElf_Shdr_vardef (shdr); + + xelf_getshdr (elf_getscn (ld_state.outelf, 1), shdr); + assert (shdr != NULL); + + val = shdr->sh_offset; + } + break; + + case exp_pagesize: + val = ld_state.pagesize; + break; + + case exp_id: + /* We are here computing only address expressions. It seems not + to be necessary to handle any variable but ".". Let's avoid + the complication. If it turns up to be needed we can add + it. */ + if (strcmp (expr->val.str, ".") != 0) + error (EXIT_FAILURE, 0, gettext ("\ +address computation expression contains variable '%s'"), + expr->val.str); + + val = addr; + break; + + case exp_mult: + val = (eval_expression (expr->val.binary.left, addr) + * eval_expression (expr->val.binary.right, addr)); + break; + + case exp_div: + val = (eval_expression (expr->val.binary.left, addr) + / eval_expression (expr->val.binary.right, addr)); + break; + + case exp_mod: + val = (eval_expression (expr->val.binary.left, addr) + % eval_expression (expr->val.binary.right, addr)); + break; + + case exp_plus: + val = (eval_expression (expr->val.binary.left, addr) + + eval_expression (expr->val.binary.right, addr)); + break; + + case exp_minus: + val = (eval_expression (expr->val.binary.left, addr) + - eval_expression (expr->val.binary.right, addr)); + break; + + case exp_and: + val = (eval_expression (expr->val.binary.left, addr) + & eval_expression (expr->val.binary.right, addr)); + break; + + case exp_or: + val = (eval_expression (expr->val.binary.left, addr) + | eval_expression (expr->val.binary.right, addr)); + break; + + case exp_align: + val = eval_expression (expr->val.child, addr); + if ((val & (val - 1)) != 0) + error (EXIT_FAILURE, 0, gettext ("argument '%" PRIuMAX "' of ALIGN in address computation expression is no power of two"), + (uintmax_t) val); + val = (addr + val - 1) & ~(val - 1); + break; + } + + return val; +} + + +/* Find a good as possible size for the hash table so that all the + non-zero entries in HASHCODES don't collide too much and the table + isn't too large. There is no exact formular for this so we use a + heuristic. Depending on the optimization level the search is + longer or shorter. */ +static size_t +optimal_bucket_size (Elf32_Word *hashcodes, size_t maxcnt, int optlevel) +{ + size_t minsize; + size_t maxsize; + size_t bestsize; + uint64_t bestcost; + size_t size; + uint32_t *counts; + uint32_t *lengths; + + if (maxcnt == 0) + return 0; + + /* When we are not optimizing we run only very few tests. */ + if (optlevel <= 0) + { + minsize = maxcnt; + maxsize = maxcnt + 10000 / maxcnt; + } + else + { + /* Does not make much sense to start with a smaller table than + one which has at least four collisions. */ + minsize = MAX (1, maxcnt / 4); + /* We look for a best fit in the range of up to eigth times the + number of elements. */ + maxsize = 2 * maxcnt + (6 * MIN (optlevel, 100) * maxcnt) / 100; + } + bestsize = maxcnt; + bestcost = UINT_MAX; + + /* Array for counting the collisions and chain lengths. */ + counts = (uint32_t *) xmalloc ((maxcnt + 1 + maxsize) * sizeof (uint32_t)); + lengths = &counts[maxcnt + 1]; + + for (size = minsize; size <= maxsize; ++size) + { + size_t inner; + uint64_t cost; + uint32_t maxlength; + uint64_t success; + uint32_t acc; + double factor; + + memset (lengths, '\0', size * sizeof (uint32_t)); + memset (counts, '\0', (maxcnt + 1) * sizeof (uint32_t)); + + /* Determine how often each hash bucket is used. */ + for (inner = 0; inner < maxcnt; ++inner) + ++lengths[hashcodes[inner] % size]; + + /* Determine the lengths. */ + maxlength = 0; + for (inner = 0; inner < size; ++inner) + { + ++counts[lengths[inner]]; + + if (lengths[inner] > maxlength) + maxlength = lengths[inner]; + } + + /* Determine successful lookup length. */ + acc = 0; + success = 0; + for (inner = 0; inner <= maxlength; ++inner) + { + acc += inner; + success += counts[inner] * acc; + } + + /* We can compute two factors now: the average length of a + positive search and the average length of a negative search. + We count the number of comparisons which have to look at the + names themselves. Recognizing that the chain ended is not + accounted for since it's almost for free. + + Which lookup is more important depends on the kind of DSO. + If it is a system DSO like libc it is expected that most + lookups succeed. Otherwise most lookups fail. */ + if (ld_state.is_system_library) + factor = (1.0 * (double) success / (double) maxcnt + + 0.3 * (double) maxcnt / (double) size); + else + factor = (0.3 * (double) success / (double) maxcnt + + 1.0 * (double) maxcnt / (double) size); + + /* Combine the lookup cost factor. The 1/16th addend adds + penalties for too large table sizes. */ + cost = (2 + maxcnt + size) * (factor + 1.0 / 16.0); + +#if 0 + printf ("maxcnt = %d, size = %d, cost = %Ld, success = %g, fail = %g, factor = %g\n", + maxcnt, size, cost, (double) success / (double) maxcnt, (double) maxcnt / (double) size, factor); +#endif + + /* Compare with current best results. */ + if (cost < bestcost) + { + bestcost = cost; + bestsize = size; + } + } + + free (counts); + + return bestsize; +} + + +static XElf_Addr +find_entry_point (void) +{ + XElf_Addr result; + + if (ld_state.entry != NULL) + { + struct symbol search = { .name = ld_state.entry }; + struct symbol *syment; + + syment = ld_symbol_tab_find (&ld_state.symbol_tab, + elf_hash (ld_state.entry), &search); + if (syment != NULL && syment->defined) + { + /* We found the symbol. */ + Elf_Data *data = elf_getdata (elf_getscn (ld_state.outelf, + ld_state.symscnidx), NULL); + + XElf_Sym_vardef (sym); + + sym = NULL; + if (data != NULL) + xelf_getsym (data, ld_state.dblindirect[syment->outsymidx], sym); + + if (sym == NULL && ld_state.need_dynsym && syment->outdynsymidx != 0) + { + /* Use the dynamic symbol table if available. */ + data = elf_getdata (elf_getscn (ld_state.outelf, + ld_state.dynsymscnidx), NULL); + + sym = NULL; + if (data != NULL) + xelf_getsym (data, syment->outdynsymidx, sym); + } + + if (sym != NULL) + return sym->st_value; + + /* XXX What to do if the output has no non-dynamic symbol + table and the dynamic symbol table does not contain the + symbol? */ + assert (ld_state.need_symtab); + assert (ld_state.symscnidx != 0); + } + } + + /* We couldn't find the symbol or none was given. Use the first + address of the ".text" section then. */ + + + result = 0; + + /* In DSOs this is no fatal error. They usually have no entry + points. In this case we set the entry point to zero, which makes + sure it will always fail. */ + if (ld_state.file_type == executable_file_type) + { + if (ld_state.entry != NULL) + error (0, 0, gettext ("\ +cannot find entry symbol \"%s\": defaulting to %#0*" PRIx64), + ld_state.entry, + xelf_getclass (ld_state.outelf) == ELFCLASS32 ? 10 : 18, + (uint64_t) result); + else + error (0, 0, gettext ("\ +no entry symbol specified: defaulting to %#0*" PRIx64), + xelf_getclass (ld_state.outelf) == ELFCLASS32 ? 10 : 18, + (uint64_t) result); + } + + return result; +} + + +static void +fillin_special_symbol (struct symbol *symst, size_t scnidx, size_t nsym, + Elf_Data *symdata, struct Ebl_Strtab *strtab) +{ + assert (ld_state.file_type != relocatable_file_type); + + XElf_Sym_vardef (sym); + xelf_getsym_ptr (symdata, nsym, sym); + + /* The name offset will be filled in later. */ + sym->st_name = 0; + /* Traditionally: globally visible. */ + sym->st_info = XELF_ST_INFO (STB_GLOBAL, symst->type); + /* No special visibility or so. */ + sym->st_other = 0; + /* Reference to the GOT or dynamic section. Since the GOT and + dynamic section are only created for executables and DSOs it + cannot be that the section index is too large. */ + assert (scnidx != 0); + assert (scnidx < SHN_LORESERVE || scnidx == SHN_ABS); + sym->st_shndx = scnidx; + /* We want the beginning of the section. */ + sym->st_value = 0; + + /* Determine the size of the section. */ + if (scnidx != SHN_ABS) + { + Elf_Data *data = elf_getdata (elf_getscn (ld_state.outelf, scnidx), + NULL); + assert (data != NULL); + sym->st_size = data->d_size; + /* Make sure there is no second data block. */ + assert (elf_getdata (elf_getscn (ld_state.outelf, scnidx), data) + == NULL); + } + + /* Insert symbol into the symbol table. Note that we do not have to + use xelf_update_symshdx. */ + (void) xelf_update_sym (symdata, nsym, sym); + + /* Cross-references. */ + ndxtosym[nsym] = symst; + symst->outsymidx = nsym; + + /* Add the name to the string table. */ + symstrent[nsym] = ebl_strtabadd (strtab, symst->name, 0); +} + + +static void +new_dynamic_entry (Elf_Data *data, int idx, XElf_Sxword tag, XElf_Addr val) +{ + XElf_Dyn_vardef (dyn); + xelf_getdyn_ptr (data, idx, dyn); + dyn->d_tag = tag; + dyn->d_un.d_ptr = val; + (void) xelf_update_dyn (data, idx, dyn); +} + + +static void +allocate_version_names (struct usedfiles *runp, struct Ebl_Strtab *dynstrtab) +{ + /* If this DSO has no versions skip it. */ + if (runp->status != opened || runp->verdefdata == NULL) + return; + + /* Add the object name. */ + int offset = 0; + while (1) + { + XElf_Verdef_vardef (def); + XElf_Verdaux_vardef (aux); + + /* Get data at the next offset. */ + xelf_getverdef (runp->verdefdata, offset, def); + assert (def != NULL); + xelf_getverdaux (runp->verdefdata, offset + def->vd_aux, aux); + assert (aux != NULL); + + assert (def->vd_ndx <= runp->nverdef); + if (def->vd_ndx == 1 || runp->verdefused[def->vd_ndx] != 0) + { + runp->verdefent[def->vd_ndx] + = ebl_strtabadd (dynstrtab, elf_strptr (runp->elf, + runp->dynsymstridx, + aux->vda_name), 0); + + if (def->vd_ndx > 1) + runp->verdefused[def->vd_ndx] = ld_state.nextveridx++; + } + + if (def->vd_next == 0) + /* That were all versions. */ + break; + + offset += def->vd_next; + } +} + + +XElf_Off +create_verneed_data (XElf_Off offset, Elf_Data *verneeddata, + struct usedfiles *runp, int *ntotal) +{ + size_t verneed_size = xelf_fsize (ld_state.outelf, ELF_T_VNEED, 1); + size_t vernaux_size = xelf_fsize (ld_state.outelf, ELF_T_VNAUX, 1); + int need_offset; + bool filled = false; + GElf_Verneed verneed; + GElf_Vernaux vernaux; + int ndef = 0; +size_t cnt; + + /* If this DSO has no versions skip it. */ + if (runp->nverdefused == 0) + return offset; + + /* We fill in the Verneed record last. Remember the + offset. */ + need_offset = offset; + offset += verneed_size; + + for (cnt = 2; cnt <= runp->nverdef; ++cnt) + if (runp->verdefused[cnt] != 0) + { + assert (runp->verdefent[cnt] != NULL); + + if (filled) + { + vernaux.vna_next = vernaux_size; + (void) gelf_update_vernaux (verneeddata, offset, + &vernaux); + offset += vernaux_size; + } + + vernaux.vna_hash + = elf_hash (ebl_string (runp->verdefent[cnt])); + vernaux.vna_flags = 0; + vernaux.vna_other = runp->verdefused[cnt]; + vernaux.vna_name = ebl_strtaboffset (runp->verdefent[cnt]); + filled = true; + ++ndef; + } + + assert (filled); + vernaux.vna_next = 0; + (void) gelf_update_vernaux (verneeddata, offset, &vernaux); + offset += vernaux_size; + + verneed.vn_version = VER_NEED_CURRENT; + verneed.vn_cnt = ndef; + verneed.vn_file = ebl_strtaboffset (runp->verdefent[1]); + /* The first auxiliary entry is always found directly + after the verneed entry. */ + verneed.vn_aux = verneed_size; + verneed.vn_next = --*ntotal > 0 ? offset - need_offset : 0; + (void) gelf_update_verneed (verneeddata, need_offset, + &verneed); + + return offset; +} + + +/* Create the output file. + + For relocatable files what basically has to happen is that all + sections from all input files are written into the output file. + Sections with the same name are combined (offsets adjusted + accordingly). The symbol tables are combined in one single table. + When stripping certain symbol table entries are omitted. + + For executables (shared or not) we have to create the program header, + additional sections like the .interp, eventually (in addition) create + a dynamic symbol table and a dynamic section. Also the relocations +have to be processed differently. */ +static int +ld_generic_create_outfile (struct ld_state *statep) +{ + struct scnlist + { + size_t scnidx; + struct scninfo *scninfo; + struct scnlist *next; + }; + struct scnlist *rellist = NULL; + size_t cnt; + Elf_Scn *symscn = NULL; + Elf_Scn *xndxscn = NULL; + Elf_Scn *strscn = NULL; + struct Ebl_Strtab *strtab = NULL; + struct Ebl_Strtab *dynstrtab = NULL; + XElf_Shdr_vardef (shdr); + Elf_Data *data; + Elf_Data *symdata = NULL; + Elf_Data *xndxdata = NULL; + struct usedfiles *file; + size_t nsym; + size_t nsym_local; + size_t nsym_allocated; + size_t nsym_dyn = 0; + Elf32_Word *dblindirect = NULL; +#ifndef NDEBUG + bool need_xndx; +#endif + Elf_Scn *shstrtab_scn; + size_t shstrtab_ndx; + XElf_Ehdr_vardef (ehdr); + struct Ebl_Strent *symtab_ent = NULL; + struct Ebl_Strent *xndx_ent = NULL; + struct Ebl_Strent *strtab_ent = NULL; + struct Ebl_Strent *shstrtab_ent; + struct scngroup *groups; + Elf_Scn *dynsymscn = NULL; + Elf_Data *dynsymdata = NULL; + Elf_Data *dynstrdata = NULL; + Elf32_Word *hashcodes = NULL; + size_t nsym_dyn_allocated = 0; + Elf_Scn *versymscn = NULL; + Elf_Data *versymdata = NULL; + + if (ld_state.need_symtab) + { + /* First create the symbol table. We need the symbol section itself + and the string table for it. */ + symscn = elf_newscn (ld_state.outelf); + ld_state.symscnidx = elf_ndxscn (symscn); + symdata = elf_newdata (symscn); + if (symdata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create symbol table for output file: %s"), + elf_errmsg (-1)); + + symdata->d_type = ELF_T_SYM; + /* This is an estimated size, but it will definitely cap the real value. + We might have to adjust the number later. */ + nsym_allocated = (1 + ld_state.nsymtab + ld_state.nplt + ld_state.ngot + + ld_state.nusedsections + ld_state.nlscript_syms); + symdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_SYM, + nsym_allocated); + + /* Optionally the extended section table. */ + /* XXX Is SHN_LORESERVE correct? Do we need some other sections? */ + if (unlikely (ld_state.nusedsections >= SHN_LORESERVE)) + { + xndxscn = elf_newscn (ld_state.outelf); + ld_state.xndxscnidx = elf_ndxscn (xndxscn); + + xndxdata = elf_newdata (xndxscn); + if (xndxdata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create symbol table for output file: %s"), + elf_errmsg (-1)); + + /* The following relies on the fact that Elf32_Word and Elf64_Word + have the same size. */ + xndxdata->d_type = ELF_T_WORD; + /* This is an estimated size, but it will definitely cap the + real value. we might have to adjust the number later. */ + xndxdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_WORD, + nsym_allocated); + /* The first entry is left empty, clear it here and now. */ + xndxdata->d_buf = memset (xmalloc (xndxdata->d_size), '\0', + xelf_fsize (ld_state.outelf, ELF_T_WORD, + 1)); + xndxdata->d_off = 0; + /* XXX Should use an ebl function. */ + xndxdata->d_align = sizeof (Elf32_Word); + } + } + else + { + assert (ld_state.need_dynsym); + + /* First create the symbol table. We need the symbol section itself + and the string table for it. */ + symscn = elf_getscn (ld_state.outelf, ld_state.dynsymscnidx); + symdata = elf_newdata (symscn); + if (symdata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create symbol table for output file: %s"), + elf_errmsg (-1)); + + symdata->d_version = EV_CURRENT; + symdata->d_type = ELF_T_SYM; + /* This is an estimated size, but it will definitely cap the real value. + We might have to adjust the number later. */ + nsym_allocated = (1 + ld_state.nsymtab + ld_state.nplt + ld_state.ngot + - ld_state.nlocalsymbols + ld_state.nlscript_syms); + symdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_SYM, + nsym_allocated); + } + + /* The first entry is left empty, clear it here and now. */ + symdata->d_buf = memset (xmalloc (symdata->d_size), '\0', + xelf_fsize (ld_state.outelf, ELF_T_SYM, 1)); + symdata->d_off = 0; + /* XXX This is ugly but how else can it be done. */ + symdata->d_align = xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1); + + /* Allocate another array to keep track of the handles for the symbol + names. */ + symstrent = (struct Ebl_Strent **) xcalloc (nsym_allocated, + sizeof (struct Ebl_Strent *)); + + /* By starting at 1 we effectively add a null entry. */ + nsym = 1; + + /* Iteration over all sections. */ + for (cnt = 0; cnt < ld_state.nallsections; ++cnt) + { + struct scnhead *head = ld_state.allsections[cnt]; + Elf_Scn *scn; + struct scninfo *runp; + XElf_Off offset; + Elf32_Word xndx; + + /* Don't handle unused sections at all. */ + if (!head->used) + continue; + + /* Get the section handle. */ + scn = elf_getscn (ld_state.outelf, head->scnidx); + + if (unlikely (head->kind == scn_dot_interp)) + { + Elf_Data *outdata = elf_newdata (scn); + if (outdata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + /* This is the string we'll put in the section. */ + const char *interp = ld_state.interp ?: "/lib/ld.so.1"; + + /* Create the section data. */ + outdata->d_buf = (void *) interp; + outdata->d_size = strlen (interp) + 1; + outdata->d_type = ELF_T_BYTE; + outdata->d_off = 0; + outdata->d_align = 1; + outdata->d_version = EV_CURRENT; + + /* Remember the index of this section. */ + ld_state.interpscnidx = head->scnidx; + + continue; + } + + if (unlikely (head->kind == scn_dot_got)) + { + /* Remember the index of this section. */ + ld_state.gotscnidx = elf_ndxscn (scn); + + /* Give the backend the change to initialize the section. */ + INITIALIZE_GOT (&ld_state, scn); + + continue; + } + + if (unlikely (head->kind == scn_dot_dynrel)) + { + Elf_Data *outdata; + + outdata = elf_newdata (scn); + if (outdata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + outdata->d_size = ld_state.relsize_total; + outdata->d_buf = xmalloc (outdata->d_size); + outdata->d_type = (REL_TYPE (&ld_state) == DT_REL + ? ELF_T_REL : ELF_T_RELA); + outdata->d_off = 0; + outdata->d_align = xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1); + + /* Remember the index of this section. */ + ld_state.reldynscnidx = elf_ndxscn (scn); + + continue; + } + + if (unlikely (head->kind == scn_dot_dynamic)) + { + /* Only create the data for now. */ + Elf_Data *outdata; + + /* Account for a few more entries we have to add. */ + if (ld_state.dt_flags != 0) + ++ld_state.ndynamic; + if (ld_state.dt_flags_1 != 0) + ++ld_state.ndynamic; + if (ld_state.dt_feature_1 != 0) + ++ld_state.ndynamic; + + outdata = elf_newdata (scn); + if (outdata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + /* Create the section data. */ + outdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_DYN, + ld_state.ndynamic); + outdata->d_buf = xcalloc (1, outdata->d_size); + outdata->d_type = ELF_T_DYN; + outdata->d_off = 0; + outdata->d_align = xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1); + + /* Remember the index of this section. */ + ld_state.dynamicscnidx = elf_ndxscn (scn); + + continue; + } + + if (unlikely (head->kind == scn_dot_dynsym)) + { + /* We already know the section index. */ + assert (ld_state.dynsymscnidx == elf_ndxscn (scn)); + + continue; + } + + if (unlikely (head->kind == scn_dot_dynstr)) + { + /* Remember the index of this section. */ + ld_state.dynstrscnidx = elf_ndxscn (scn); + + /* Create the string table. */ + dynstrtab = ebl_strtabinit (true); + + /* XXX TBI + We have to add all the strings which are needed in the + dynamic section here. This means DT_FILTER, + DT_AUXILIARY, ... entries. */ + if (ld_state.ndsofiles > 0) + { + struct usedfiles *frunp = ld_state.dsofiles; + + do + if (! ld_state.ignore_unused_dsos || frunp->used) + frunp->sonameent = ebl_strtabadd (dynstrtab, frunp->soname, + 0); + while ((frunp = frunp->next) != ld_state.dsofiles); + } + + + /* Add the runtime path information. The strings are stored + in the .dynstr section. If both rpath and runpath are defined + the runpath information is used. */ + if (ld_state.runpath != NULL || ld_state.rpath != NULL) + { + struct pathelement *startp; + struct pathelement *prunp; + int tag; + size_t len; + char *str; + char *cp; + + if (ld_state.runpath != NULL) + { + startp = ld_state.runpath; + tag = DT_RUNPATH; + } + else + { + startp = ld_state.rpath; + tag = DT_RPATH; + } + + /* Determine how long the string will be. */ + for (len = 0, prunp = startp; prunp != NULL; prunp = prunp->next) + len += strlen (prunp->pname) + 1; + + cp = str = (char *) obstack_alloc (&ld_state.smem, len); + /* Copy the string. */ + for (prunp = startp; prunp != NULL; prunp = prunp->next) + { + cp = stpcpy (cp, prunp->pname); + *cp++ = ':'; + } + /* Remove the last colon. */ + cp[-1] = '\0'; + + /* Remember the values until we can generate the dynamic + section. */ + ld_state.rxxpath_strent = ebl_strtabadd (dynstrtab, str, len); + ld_state.rxxpath_tag = tag; + } + + continue; + } + + if (unlikely (head->kind == scn_dot_hash)) + { + /* Remember the index of this section. */ + ld_state.hashscnidx = elf_ndxscn (scn); + + continue; + } + + if (unlikely (head->kind == scn_dot_plt)) + { + /* Remember the index of this section. */ + ld_state.pltscnidx = elf_ndxscn (scn); + + /* Give the backend the change to initialize the section. */ + INITIALIZE_PLT (&ld_state, scn); + + continue; + } + + if (unlikely (head->kind == scn_dot_pltrel)) + { + /* Remember the index of this section. */ + ld_state.pltrelscnidx = elf_ndxscn (scn); + + /* Give the backend the change to initialize the section. */ + INITIALIZE_PLTREL (&ld_state, scn); + + continue; + } + + if (unlikely (head->kind == scn_dot_version)) + { + /* Remember the index of this section. */ + ld_state.versymscnidx = elf_ndxscn (scn); + + continue; + } + + if (unlikely (head->kind == scn_dot_version_r)) + { + /* Remember the index of this section. */ + ld_state.verneedscnidx = elf_ndxscn (scn); + + continue; + } + + /* If we come here we must be handling a normal section. */ + assert (head->kind == scn_normal); + + /* Create an STT_SECTION entry in the symbol table. But not for + the symbolic symbol table. */ + if (ld_state.need_symtab) + { + /* XXX Can we be cleverer and do this only if needed? */ + XElf_Sym_vardef (sym); + + /* Optimization ahead: in the native linker we get a pointer + to the final location so that the following code writes + directly in the correct place. Otherwise we write into + the local variable first. */ + xelf_getsym_ptr (symdata, nsym, sym); + + /* Usual section symbol: local, no specific information, + except the section index. The offset here is zero, the + start address will later be added. */ + sym->st_name = 0; + sym->st_info = XELF_ST_INFO (STB_LOCAL, STT_SECTION); + sym->st_other = 0; + sym->st_value = 0; + sym->st_size = 0; + /* In relocatable files the section index can be too big for + the ElfXX_Sym struct. we have to deal with the extended + symbol table. */ + if (likely (head->scnidx < SHN_LORESERVE)) + { + sym->st_shndx = head->scnidx; + xndx = 0; + } + else + { + sym->st_shndx = SHN_XINDEX; + xndx = head->scnidx; + } + /* Commit the change. See the optimization above, this does + not change the symbol table entry. But the extended + section index table entry is always written, if there is + such a table. */ + assert (nsym < nsym_allocated); + xelf_update_symshndx (symdata, xndxdata, nsym, sym, xndx, 0); + + /* Remember the symbol's index in the symbol table. */ + head->scnsymidx = nsym++; + } + + if (head->type == SHT_REL || head->type == SHT_RELA) + { + /* Remember that we have to fill in the symbol table section + index. */ + if (ld_state.file_type == relocatable_file_type) + { + struct scnlist *newp; + + newp = (struct scnlist *) alloca (sizeof (*newp)); + newp->scnidx = head->scnidx; + newp->scninfo = head->last->next; +#ifndef NDEBUG + newp->next = NULL; +#endif + SNGL_LIST_PUSH (rellist, newp); + } + else + { + /* When we create an executable or a DSO we don't simply + copy the existing relocations. Instead many will be + resolved, others will be converted. Create a data buffer + large enough to contain the contents which we will fill + in later. */ + int type = head->type == SHT_REL ? ELF_T_REL : ELF_T_RELA; + + data = elf_newdata (scn); + if (data == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + data->d_size = xelf_fsize (ld_state.outelf, type, head->relsize); + data->d_buf = xcalloc (data->d_size, 1); + data->d_type = type; + data->d_align = xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1); + data->d_off = 0; + + continue; + } + } + + /* Recognize string and merge flag and handle them. */ + if (head->flags & SHF_MERGE) + { + /* We merge the contents of the sections. For this we do + not look at the contents of section directly. Instead we + look at the symbols of the section. */ + Elf_Data *outdata; + + /* Concatenate the lists of symbols for all sections. + + XXX In case any input section has no symbols associated + (this happens for debug sections) we cannot use this + method. Implement parsing the other debug sections and + find the string pointers. For now we don't merge. */ + runp = head->last->next; + if (runp->symbols == NULL) + { + head->flags &= ~SHF_MERGE; + goto no_merge; + } + head->symbols = runp->symbols; + + while ((runp = runp->next) != head->last->next) + { + if (runp->symbols == NULL) + { + head->flags &= ~SHF_MERGE; + head->symbols = NULL; + goto no_merge; + } + + struct symbol *oldhead = head->symbols->next_in_scn; + + head->symbols->next_in_scn = runp->symbols->next_in_scn; + runp->symbols->next_in_scn = oldhead; + head->symbols = runp->symbols; + } + + /* Create the output section. */ + outdata = elf_newdata (scn); + if (outdata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + /* We use different merging algorithms for performance + reasons. We can easily handle single-byte and + wchar_t-wide character strings. All other cases (which + really should happen in real life) are handled by the + generic code. */ + if (SCNINFO_SHDR (head->last->shdr).sh_entsize == 1 + && (head->flags & SHF_STRINGS)) + { + /* Simple, single-byte string matching. */ + struct Ebl_Strtab *mergestrtab; + struct symbol *symrunp; + Elf_Data *locsymdata = NULL; + Elf_Data *locdata = NULL; + + mergestrtab = ebl_strtabinit (false); + + symrunp = head->symbols->next_in_scn; + file = NULL; + do + { + /* Accelarate the loop. We cache the file + information since it might very well be the case + that the previous entry was from the same + file. */ + if (symrunp->file != file) + { + /* Remember the file. */ + file = symrunp->file; + /* Symbol table data from that file. */ + locsymdata = file->symtabdata; + /* String section data. */ + locdata = elf_rawdata (file->scninfo[symrunp->scndx].scn, + NULL); + assert (locdata != NULL); + /* While we are at it, remember the output + section. If we don't access the string data + section the section won't be in the output + file. So it is sufficient to do the work + here. */ + file->scninfo[symrunp->scndx].outscnndx = head->scnidx; + } + + /* Get the symbol information. This provides us the + offset into the string data section. */ + XElf_Sym_vardef (sym); + xelf_getsym (locsymdata, symrunp->symidx, sym); + assert (sym != NULL); + + /* Get the data from the file. Note that we access + the raw section data; no endian-ness issues with + single-byte strings. */ + symrunp->merge.handle + = ebl_strtabadd (mergestrtab, + (char *) locdata->d_buf + sym->st_value, + 0); + } + while ((symrunp = symrunp->next_in_scn) + != head->symbols->next_in_scn); + + /* All strings have been added. Create the final table. */ + ebl_strtabfinalize (mergestrtab, outdata); + + /* Compute the final offsets in the section. */ + symrunp = runp->symbols; + do + { + symrunp->merge.value + = ebl_strtaboffset (symrunp->merge.handle); + symrunp->merged = 1; + } + while ((symrunp = symrunp->next_in_scn) != runp->symbols); + + /* We don't need the string table anymore. */ + ebl_strtabfree (mergestrtab); + } + else if (likely (SCNINFO_SHDR (head->last->shdr).sh_entsize + == sizeof (wchar_t)) + && likely (head->flags & SHF_STRINGS)) + { + /* Simple, wchar_t string merging. */ + struct Ebl_WStrtab *mergestrtab; + struct symbol *symrunp; + Elf_Data *locsymdata = NULL; + Elf_Data *locdata = NULL; + + mergestrtab = ebl_wstrtabinit (false); + + symrunp = runp->symbols; + file = NULL; + do + { + /* Accelarate the loop. We cache the file + information since it might very well be the case + that the previous entry was from the same + file. */ + if (symrunp->file != file) + { + /* Remember the file. */ + file = symrunp->file; + /* Symbol table data from that file. */ + locsymdata = file->symtabdata; + /* String section data. */ + locdata = elf_rawdata (file->scninfo[symrunp->scndx].scn, + NULL); + assert (locdata != NULL); + + /* While we are at it, remember the output + section. If we don't access the string data + section the section won't be in the output + file. So it is sufficient to do the work + here. */ + file->scninfo[symrunp->scndx].outscnndx = head->scnidx; + } + + /* Get the symbol information. This provides us the + offset into the string data section. */ + XElf_Sym_vardef (sym); + xelf_getsym (locsymdata, symrunp->symidx, sym); + assert (sym != NULL); + + /* Get the data from the file. Using the raw + section data here is possible since we don't + interpret the string themselves except for + looking for the wide NUL character. The NUL + character has fortunately the same representation + regardless of the byte order. */ + symrunp->merge.handle + = ebl_wstrtabadd (mergestrtab, + (wchar_t *) ((char *) locdata->d_buf + + sym->st_value), 0); + } + while ((symrunp = symrunp->next_in_scn) != runp->symbols); + + /* All strings have been added. Create the final table. */ + ebl_wstrtabfinalize (mergestrtab, outdata); + + /* Compute the final offsets in the section. */ + symrunp = runp->symbols; + do + { + symrunp->merge.value + = ebl_wstrtaboffset (symrunp->merge.handle); + symrunp->merged = 1; + } + while ((symrunp = symrunp->next_in_scn) != runp->symbols); + + /* We don't need the string table anymore. */ + ebl_wstrtabfree (mergestrtab); + } + else + { + /* Non-standard merging. */ + struct Ebl_GStrtab *mergestrtab; + struct symbol *symrunp; + Elf_Data *locsymdata = NULL; + Elf_Data *locdata = NULL; + /* If this is no string section the length of each "string" + is always one. */ + unsigned int len = (head->flags & SHF_STRINGS) ? 0 : 1; + + /* This is the generic string table functionality. Much + slower than the specialized code. */ + mergestrtab + = ebl_gstrtabinit (SCNINFO_SHDR (head->last->shdr).sh_entsize, + false); + + symrunp = runp->symbols; + file = NULL; + do + { + /* Accelarate the loop. We cache the file + information since it might very well be the case + that the previous entry was from the same + file. */ + if (symrunp->file != file) + { + /* Remember the file. */ + file = symrunp->file; + /* Symbol table data from that file. */ + locsymdata = file->symtabdata; + /* String section data. */ + locdata = elf_rawdata (file->scninfo[symrunp->scndx].scn, + NULL); + assert (locdata != NULL); + + /* While we are at it, remember the output + section. If we don't access the string data + section the section won't be in the output + file. So it is sufficient to do the work + here. */ + file->scninfo[symrunp->scndx].outscnndx = head->scnidx; + } + + /* Get the symbol information. This provides us the + offset into the string data section. */ + XElf_Sym_vardef (sym); + xelf_getsym (locsymdata, symrunp->symidx, sym); + assert (sym != NULL); + + /* Get the data from the file. Using the raw + section data here is possible since we don't + interpret the string themselves except for + looking for the wide NUL character. The NUL + character has fortunately the same representation + regardless of the byte order. */ + symrunp->merge.handle + = ebl_gstrtabadd (mergestrtab, + (char *) locdata->d_buf + sym->st_value, + len); + } + while ((symrunp = symrunp->next_in_scn) != runp->symbols); + + /* Create the final table. */ + ebl_gstrtabfinalize (mergestrtab, outdata); + + /* Compute the final offsets in the section. */ + symrunp = runp->symbols; + do + { + symrunp->merge.value + = ebl_gstrtaboffset (symrunp->merge.handle); + symrunp->merged = 1; + } + while ((symrunp = symrunp->next_in_scn) != runp->symbols); + + /* We don't need the string table anymore. */ + ebl_gstrtabfree (mergestrtab); + } + } + else + { + no_merge: + assert (head->scnidx == elf_ndxscn (scn)); + + /* It is important to start with the first list entry (and + not just any one) to add the sections in the correct + order. */ + runp = head->last->next; + offset = 0; + do + { + Elf_Data *outdata = elf_newdata (scn); + if (outdata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + /* Exceptional case: if we synthesize a data block SCN + is NULL and the sectio header info must be for a + SHT_NOBITS block and the size and alignment are + filled in. */ + if (likely (runp->scn != NULL)) + { + data = elf_getdata (runp->scn, NULL); + assert (data != NULL); + + /* We reuse the data buffer in the input file. */ + *outdata = *data; + + /* Given that we read the input file from disk we know there + cannot be another data part. */ + assert (elf_getdata (runp->scn, data) == NULL); + } + else + { + /* Must be a NOBITS section. */ + assert (SCNINFO_SHDR (runp->shdr).sh_type == SHT_NOBITS); + + outdata->d_buf = NULL; /* Not needed. */ + outdata->d_type = ELF_T_BYTE; + outdata->d_version = EV_CURRENT; + outdata->d_size = SCNINFO_SHDR (runp->shdr).sh_size; + outdata->d_align = SCNINFO_SHDR (runp->shdr).sh_addralign; + } + + XElf_Off align = MAX (1, outdata->d_align); + assert (powerof2 (align)); + offset = ((offset + align - 1) & ~(align - 1)); + + runp->offset = offset; + runp->outscnndx = head->scnidx; + runp->allsectionsidx = cnt; + + outdata->d_off = offset; + + offset += outdata->d_size; + } + while ((runp = runp->next) != head->last->next); + + /* If necessary add the additional line to the .comment section. */ + if (ld_state.add_ld_comment + && head->flags == 0 + && head->type == SHT_PROGBITS + && strcmp (head->name, ".comment") == 0 + && head->entsize == 0) + { + Elf_Data *outdata = elf_newdata (scn); + + if (outdata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + outdata->d_buf = (void *) "\0ld (Red Hat " PACKAGE ") " VERSION; + outdata->d_size = strlen ((char *) outdata->d_buf + 1) + 2; + outdata->d_off = offset; + outdata->d_type = ELF_T_BYTE; + outdata->d_align = 1; + } + /* XXX We should create a .comment section if none exists. + This requires that we early on detect that no such + section exists. This should probably be implemented + together with some merging of the section contents. + Currently identical entries are not merged. */ + } + } + + /* The table we collect the strings in. */ + strtab = ebl_strtabinit (true); + if (strtab == NULL) + error (EXIT_FAILURE, errno, gettext ("cannot create string table")); + + +#ifndef NDEBUG + /* Keep track of the use of the XINDEX. */ + need_xndx = false; +#endif + + /* We we generate a normal symbol table for an executable and the + --export-dynamic option is not given, we need an extra table + which keeps track of the symbol entry belonging to the symbol + table entry. Note that EXPORT_ALL_DYNAMIC is always set if we + generate a DSO so we do not have to test this separately. */ + ndxtosym = (struct symbol **) xcalloc (nsym_allocated, + sizeof (struct symbol)); + + /* Create the special symbol for the GOT section. */ + if (ld_state.got_symbol != NULL) + { + assert (nsym < nsym_allocated); + fillin_special_symbol (ld_state.got_symbol, ld_state.gotscnidx, + nsym++, symdata, strtab); + } + + /* Similarly for the dynamic section symbol. */ + if (ld_state.dyn_symbol != NULL) + { + assert (nsym < nsym_allocated); + fillin_special_symbol (ld_state.dyn_symbol, ld_state.dynamicscnidx, + nsym++, symdata, strtab); + } + + /* Create symbol table entries for the symbols defined in the linker + script. */ + if (ld_state.lscript_syms != NULL) + { + struct symbol *rsym = ld_state.lscript_syms; + do + { + assert (nsym < nsym_allocated); + fillin_special_symbol (rsym, SHN_ABS, nsym++, symdata, strtab); + } + while ((rsym = rsym->next) != NULL); + } + + /* Iterate over all input files to collect the symbols. */ + file = ld_state.relfiles->next; + symdata = elf_getdata (elf_getscn (ld_state.outelf, ld_state.symscnidx), + NULL); + do + { + size_t maxcnt; + Elf_Data *insymdata; + Elf_Data *inxndxdata; + + /* There must be no dynamic symbol table when creating + relocatable files. */ + assert (ld_state.file_type != relocatable_file_type + || file->dynsymtabdata == NULL); + + insymdata = file->symtabdata; + assert (insymdata != NULL); + inxndxdata = file->xndxdata; + + maxcnt = file->nsymtab; + + file->symindirect = (Elf32_Word *) xcalloc (maxcnt, sizeof (Elf32_Word)); + + /* The dynamic symbol table does not contain local symbols. So + we skip those entries. */ + for (cnt = ld_state.need_symtab ? 1 : file->nlocalsymbols; cnt < maxcnt; + ++cnt) + { + XElf_Sym_vardef (sym); + Elf32_Word xndx; + struct symbol *defp = NULL; + + xelf_getsymshndx (insymdata, inxndxdata, cnt, sym, xndx); + assert (sym != NULL); + + if (unlikely (XELF_ST_TYPE (sym->st_info) == STT_SECTION)) + { + /* Section symbols should always be local but who knows... */ + if (ld_state.need_symtab) + { + /* Determine the real section index in the source file. + Use the XINDEX section content if necessary. We don't + add this information to the dynamic symbol table. */ + if (sym->st_shndx != SHN_XINDEX) + xndx = sym->st_shndx; + + assert (file->scninfo[xndx].allsectionsidx + < ld_state.nallsections); + file->symindirect[cnt] = ld_state.allsections[file->scninfo[xndx].allsectionsidx]->scnsymidx; + /* Note that the resulting index can be zero here. There is + no guarantee that the output file will contain all the + sections the input file did. */ + } + continue; + } + + if ((ld_state.strip >= strip_all || !ld_state.need_symtab) + /* XXX Do we need these entries? */ + && XELF_ST_TYPE (sym->st_info) == STT_FILE) + continue; + +#if NATIVE_ELF != 0 + /* Copy old data. */ + XElf_Sym *sym2 = sym; + assert (nsym < nsym_allocated); + xelf_getsym (symdata, nsym, sym); + *sym = *sym2; +#endif + + if (sym->st_shndx != SHN_UNDEF + && (sym->st_shndx < SHN_LORESERVE + || sym->st_shndx == SHN_XINDEX)) + { + /* If we are creating an executable with no normal + symbol table and we do not export all symbols and + this symbol is not defined in a DSO as well, ignore + it. */ + if (!ld_state.export_all_dynamic && !ld_state.need_symtab) + { + assert (cnt >= file->nlocalsymbols); + defp = file->symref[cnt]; + assert (defp != NULL); + + if (!defp->in_dso) + /* Ignore it. */ + continue; + } + + /* Determine the real section index in the source file. Use + the XINDEX section content if necessary. */ + if (sym->st_shndx != SHN_XINDEX) + xndx = sym->st_shndx; + + sym->st_value += file->scninfo[xndx].offset; + + assert (file->scninfo[xndx].outscnndx < SHN_LORESERVE + || file->scninfo[xndx].outscnndx > SHN_HIRESERVE); + if (unlikely (file->scninfo[xndx].outscnndx > SHN_LORESERVE)) + { + /* It is not possible to have an extended section index + table for the dynamic symbol table. */ + if (!ld_state.need_symtab) + error (EXIT_FAILURE, 0, gettext ("\ +section index too large in dynamic symbol table")); + + assert (xndxdata != NULL); + sym->st_shndx = SHN_XINDEX; + xndx = file->scninfo[xndx].outscnndx; +#ifndef NDEBUG + need_xndx = true; +#endif + } + else + { + sym->st_shndx = file->scninfo[xndx].outscnndx; + xndx = 0; + } + } + else if (sym->st_shndx == SHN_COMMON || sym->st_shndx == SHN_UNDEF) + { + /* Check whether we have a (real) definition for this + symbol. If this is the case we skip this symbol + table entry. */ + assert (cnt >= file->nlocalsymbols); + defp = file->symref[cnt]; + assert (defp != NULL); + + assert (sym->st_shndx != SHN_COMMON || defp->defined); + + if ((sym->st_shndx == SHN_COMMON && !defp->common) + || (sym->st_shndx == SHN_UNDEF && defp->defined) + || defp->added) + /* Ignore this symbol table entry, there is a + "better" one or we already added it. */ + continue; + + /* Remember that we already added this symbol. */ + defp->added = 1; + + /* Adjust the section number for common symbols. */ + if (sym->st_shndx == SHN_COMMON) + { + sym->st_value = (ld_state.common_section->offset + + file->symref[cnt]->merge.value); + assert (ld_state.common_section->outscnndx < SHN_LORESERVE); + sym->st_shndx = ld_state.common_section->outscnndx; + xndx = 0; + } + } + else if (unlikely (sym->st_shndx != SHN_ABS)) + { + if (SPECIAL_SECTION_NUMBER_P (&ld_state, sym->st_shndx)) + /* XXX Add code to handle machine specific special + sections. */ + abort (); + } + + /* Add the symbol name to the string table. If the user + chooses the highest level of stripping avoid adding names + for local symbols in the string table. */ + if (sym->st_name != 0 + && (ld_state.strip < strip_everything + || XELF_ST_BIND (sym->st_info) != STB_LOCAL)) + symstrent[nsym] = ebl_strtabadd (strtab, + elf_strptr (file->elf, + file->symstridx, + sym->st_name), 0); + + /* Once we know the name this field will get the correct + offset. For now set it to zero which means no name + associated. */ + sym->st_name = 0; + + /* If we had to merge sections we have a completely new + offset for the symbol. */ + if (file->has_merge_sections && file->symref[cnt] != NULL + && file->symref[cnt]->merged) + sym->st_value = file->symref[cnt]->merge.value; + + /* Create the record in the output sections. */ + assert (nsym < nsym_allocated); + xelf_update_symshndx (symdata, xndxdata, nsym, sym, xndx, 0); + + /* Add the reference to the symbol record in case we need it. + Find the symbol if this has not happened yet. We do + not need the information for local symbols. */ + if (defp == NULL && cnt >= file->nlocalsymbols) + { + defp = file->symref[cnt]; + assert (defp != NULL); + } + + /* Store the reference to the symbol record. The + sorting code will have to keep this array in the + correct order, too. */ + ndxtosym[nsym] = defp; + + /* One more entry finished. */ + if (cnt >= file->nlocalsymbols) + { + assert (file->symref[cnt]->outsymidx == 0); + file->symref[cnt]->outsymidx = nsym; + } + file->symindirect[cnt] = nsym++; + } + } + while ((file = file->next) != ld_state.relfiles->next); + /* Make sure we didn't create the extended section index table for + nothing. */ + assert (xndxdata == NULL || need_xndx); + + + /* Create the version related sections. */ + if (ld_state.verneedscnidx != 0) + { + /* We know the number of input files and total number of + referenced versions. This allows us to allocate the memory + and then we iterate over the DSOs to get the version + information. */ + struct usedfiles *runp; + + runp = ld_state.dsofiles->next; + do + allocate_version_names (runp, dynstrtab); + while ((runp = runp->next) != ld_state.dsofiles->next); + + if (ld_state.needed != NULL) + { + runp = ld_state.needed->next; + do + allocate_version_names (runp, dynstrtab); + while ((runp = runp->next) != ld_state.needed->next); + } + } + + /* At this point we should hide symbols and so on. */ + if (ld_state.default_bind_local || ld_state.version_str_tab.filled > 0) + /* XXX Add one more test when handling of wildcard symbol names + is supported. */ + { + /* Check all non-local symbols whether they are on the export list. */ + bool any_reduced = false; + + for (cnt = 1; cnt < nsym; ++cnt) + { + XElf_Sym_vardef (sym); + + /* Note that we don't have to use 'xelf_getsymshndx' since we + only need the binding and the symbol name. */ + xelf_getsym (symdata, cnt, sym); + assert (sym != NULL); + + if (reduce_symbol_p (sym, symstrent[cnt])) + { + sym->st_info = XELF_ST_INFO (STB_LOCAL, + XELF_ST_TYPE (sym->st_info)); + (void) xelf_update_sym (symdata, cnt, sym); + + /* Show that we don't need this string anymore. */ + if (ld_state.strip == strip_everything) + { + symstrent[cnt] = NULL; + any_reduced = true; + } + } + } + + if (unlikely (any_reduced)) + { + /* Since we will not write names of local symbols in the + output file and we have reduced the binding of some + symbols the string table previously constructed contains + too many string. Correct it. */ + struct Ebl_Strtab *newp = ebl_strtabinit (true); + + for (cnt = 1; cnt < nsym; ++cnt) + if (symstrent[cnt] != NULL) + symstrent[cnt] = ebl_strtabadd (newp, + ebl_string (symstrent[cnt]), 0); + + ebl_strtabfree (strtab); + strtab = newp; + } + } + + /* Add the references to DSOs. We can add these entries this late + (after sorting out versioning) because references to DSOs are not + effected. */ + if (ld_state.from_dso != NULL) + { + struct symbol *runp; + size_t plt_base = nsym + ld_state.nfrom_dso - ld_state.nplt; + size_t plt_idx = 0; + size_t obj_idx = 0; + + assert (ld_state.nfrom_dso >= ld_state.nplt); + runp = ld_state.from_dso; + do + { + // XXX What about functions which are only referenced via + // pointers and not PLT entries? Can we distinguish such uses? + size_t idx; + if (runp->type == STT_FUNC) + { + /* Store the PLT entry number. */ + runp->merge.value = plt_idx + 1; + idx = plt_base + plt_idx++; + } + else + idx = nsym + obj_idx++; + + XElf_Sym_vardef (sym); + xelf_getsym_ptr (symdata, idx, sym); + + sym->st_value = 0; + sym->st_size = runp->size; + sym->st_info = XELF_ST_INFO (runp->weak ? STB_WEAK : STB_GLOBAL, + runp->type); + sym->st_other = STV_DEFAULT; + sym->st_shndx = SHN_UNDEF; + + /* Create the record in the output sections. */ + xelf_update_symshndx (symdata, xndxdata, idx, sym, 0, 0); + + const char *name = runp->name; + size_t namelen = 0; + + if (runp->file->verdefdata != NULL) + { + // XXX Is it useful to add the versym value to struct symbol? + XElf_Versym versym; + + (void) xelf_getversym_copy (runp->file->versymdata, runp->symidx, + versym); + + /* One can only link with the default version. */ + assert ((versym & 0x8000) == 0); + + const char *versname + = ebl_string (runp->file->verdefent[versym]); + + size_t versname_len = strlen (versname) + 1; + namelen = strlen (name) + versname_len + 2; + char *newp = (char *) obstack_alloc (&ld_state.smem, namelen); + memcpy (stpcpy (stpcpy (newp, name), "@@"), + versname, versname_len); + name = newp; + } + + symstrent[idx] = ebl_strtabadd (strtab, name, namelen); + + /* Record the initial index in the symbol table. */ + runp->outsymidx = idx; + + /* Remember the symbol record this ELF symbol came from. */ + ndxtosym[idx] = runp; + } + while ((runp = runp->next) != ld_state.from_dso); + + assert (nsym + obj_idx == plt_base); + assert (plt_idx == ld_state.nplt); + nsym = plt_base + plt_idx; + } + + /* Now we know how many symbols will be in the output file. Adjust + the count in the section data. */ + symdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_SYM, nsym); + if (unlikely (xndxdata != NULL)) + xndxdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_WORD, nsym); + + /* Create the symbol string table section. */ + strscn = elf_newscn (ld_state.outelf); + ld_state.strscnidx = elf_ndxscn (strscn); + data = elf_newdata (strscn); + xelf_getshdr (strscn, shdr); + if (data == NULL || shdr == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + /* Create a compact string table, allocate the memory for it, and + fill in the section data information. */ + ebl_strtabfinalize (strtab, data); + + shdr->sh_type = SHT_STRTAB; + assert (shdr->sh_entsize == 0); + + if (unlikely (xelf_update_shdr (strscn, shdr) == 0)) + error (EXIT_FAILURE, 0, + gettext ("cannot create section for output file: %s"), + elf_errmsg (-1)); + + /* Fill in the offsets of the symbol names. */ + for (cnt = 1; cnt < nsym; ++cnt) + if (symstrent[cnt] != NULL) + { + XElf_Sym_vardef (sym); + + /* Note that we don't have to use 'xelf_getsymshndx' since we don't + modify the section index. */ + xelf_getsym (symdata, cnt, sym); + /* This better worked, we did it before. */ + assert (sym != NULL); + sym->st_name = ebl_strtaboffset (symstrent[cnt]); + (void) xelf_update_sym (symdata, cnt, sym); + } + + /* Since we are going to reorder the symbol table but still have to + be able to find the new position based on the old one (since the + latter is stored in 'symindirect' information of the input file + data structure) we have to create yet another indirection + table. */ + ld_state.dblindirect = dblindirect + = (Elf32_Word *) xmalloc (nsym * sizeof (Elf32_Word)); + + /* Sort the symbol table so that the local symbols come first. */ + /* XXX We don't use stable sorting here. It seems not necessary and + would be more expensive. If it turns out to be necessary this can + be fixed easily. */ + nsym_local = 1; + cnt = nsym - 1; + while (nsym_local < cnt) + { + XElf_Sym_vardef (locsym); + Elf32_Word locxndx; + XElf_Sym_vardef (globsym); + Elf32_Word globxndx; + + do + { + xelf_getsymshndx (symdata, xndxdata, nsym_local, locsym, locxndx); + /* This better works. */ + assert (locsym != NULL); + + if (XELF_ST_BIND (locsym->st_info) != STB_LOCAL + && (ld_state.need_symtab || ld_state.export_all_dynamic)) + { + do + { + xelf_getsymshndx (symdata, xndxdata, cnt, globsym, globxndx); + /* This better works. */ + assert (globsym != NULL); + + if (unlikely (XELF_ST_BIND (globsym->st_info) == STB_LOCAL)) + { + /* We swap the two entries. */ +#if NATIVE_ELF != 0 + /* Since we directly modify the data in the ELF + data structure we have to make a copy of one + of the entries. */ + XElf_Sym locsym_copy = *locsym; + locsym = &locsym_copy; +#endif + xelf_update_symshndx (symdata, xndxdata, nsym_local, + globsym, globxndx, 1); + xelf_update_symshndx (symdata, xndxdata, cnt, + locsym, locxndx, 1); + + /* Also swap the cross references. */ + dblindirect[nsym_local] = cnt; + dblindirect[cnt] = nsym_local; + + /* And the entries for the symbol names. */ + struct Ebl_Strent *strtmp = symstrent[nsym_local]; + symstrent[nsym_local] = symstrent[cnt]; + symstrent[cnt] = strtmp; + + /* And the mapping from symbol table entry to + struct symbol record. */ + struct symbol *symtmp = ndxtosym[nsym_local]; + ndxtosym[nsym_local] = ndxtosym[cnt]; + ndxtosym[cnt] = symtmp; + + /* Go to the next entry. */ + ++nsym_local; + --cnt; + + break; + } + + dblindirect[cnt] = cnt; + } + while (nsym_local < --cnt); + + break; + } + + dblindirect[nsym_local] = nsym_local; + } + while (++nsym_local < cnt); + } + + /* The symbol 'nsym_local' is currently pointing to might be local, + too. Check and increment the variable if this is the case. */ + if (likely (nsym_local < nsym)) + { + XElf_Sym_vardef (locsym); + + /* This entry isn't moved. */ + dblindirect[nsym_local] = nsym_local; + + /* Note that it is OK to not use 'xelf_getsymshndx' here. */ + xelf_getsym (symdata, nsym_local, locsym); + /* This better works. */ + assert (locsym != NULL); + + if (XELF_ST_BIND (locsym->st_info) == STB_LOCAL) + ++nsym_local; + } + + + /* We need the versym array right away to keep track of the version + symbols. */ + if (ld_state.versymscnidx != 0) + { + /* We allocate more memory than we need since the array is morroring + the dynamic symbol table and not the normal symbol table. I.e., + no local symbols are present. */ + versymscn = elf_getscn (ld_state.outelf, ld_state.versymscnidx); + versymdata = elf_newdata (versymscn); + if (versymdata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create versioning section: %s"), + elf_errmsg (-1)); + + versymdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_HALF, + nsym - nsym_local + 1); + versymdata->d_buf = xcalloc (1, versymdata->d_size); + versymdata->d_align = xelf_fsize (ld_state.outelf, ELF_T_HALF, 1); + versymdata->d_off = 0; + versymdata->d_type = ELF_T_HALF; + } + + + /* If we have to construct the dynamic symbol table we must not include + the local symbols. If the normal symbol has to be emitted as well + we haven't done anything else yet and we can construct it from + scratch now. */ + if (unlikely (!ld_state.need_symtab)) + { + /* Note that the following code works even if there is no entry + to remove since the zeroth entry is always local. */ + size_t reduce = xelf_fsize (ld_state.outelf, ELF_T_SYM, nsym_local - 1); + + XElf_Sym_vardef (nullsym); + xelf_getsym_ptr (symdata, nsym_local - 1, nullsym); + + /* Note that we don't have to use 'xelf_update_symshndx' since + this is the dynamic symbol table we write. */ + (void) xelf_update_sym (symdata, nsym_local - 1, + memset (nullsym, '\0', sizeof (*nullsym))); + + /* Update the buffer pointer and size in the output data. */ + symdata->d_buf = (char *) symdata->d_buf + reduce; + symdata->d_size -= reduce; + + /* Add the version symbol information. */ + if (versymdata != NULL) + { + nsym_dyn = 1; + for (cnt = nsym_local; cnt < nsym; ++cnt, ++nsym_dyn) + { + struct symbol *symp = ndxtosym[cnt]; + + if (symp->file->versymdata != NULL) + { + GElf_Versym versym; + + gelf_getversym (symp->file->versymdata, symp->symidx, + &versym); + + (void) gelf_update_versym (versymdata, nsym_dyn, + &symp->file->verdefused[versym]); + } + } + } + + /* Since we only created the dynamic symbol table the number of + dynamic symbols is the total number of symbols. */ + nsym_dyn = nsym - nsym_local + 1; + + /* XXX TBI. Create whatever data structure is missing. */ + abort (); + } + else if (ld_state.need_dynsym) + { + /* Create the dynamic symbol table section data along with the + string table. We look at all non-local symbols we found for + the normal symbol table and add those. */ + dynsymscn = elf_getscn (ld_state.outelf, ld_state.dynsymscnidx); + dynsymdata = elf_newdata (dynsymscn); + + dynstrdata = elf_newdata (elf_getscn (ld_state.outelf, + ld_state.dynstrscnidx)); + if (dynsymdata == NULL || dynstrdata == NULL) + error (EXIT_FAILURE, 0, gettext ("\ +cannot create dynamic symbol table for output file: %s"), + elf_errmsg (-1)); + + nsym_dyn_allocated = nsym - nsym_local + 1; + dynsymdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_SYM, + nsym_dyn_allocated); + dynsymdata->d_buf = memset (xmalloc (dynsymdata->d_size), '\0', + xelf_fsize (ld_state.outelf, ELF_T_SYM, 1)); + dynsymdata->d_type = ELF_T_SYM; + dynsymdata->d_off = 0; + dynsymdata->d_align = xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1); + + /* We need one more array which contains the hash codes of the + symbol names. */ + hashcodes = (Elf32_Word *) xcalloc (nsym_dyn_allocated, + sizeof (Elf32_Word)); + + /* We have and empty entry at the beginning. */ + nsym_dyn = 1; + + /* We don't mix PLT symbols and others. */ + size_t plt_idx = 1; + size_t obj_idx = 1 + ld_state.nplt; + + /* Populate the table. */ + for (cnt = nsym_local; cnt < nsym; ++cnt) + { + XElf_Sym_vardef (sym); + + xelf_getsym (symdata, cnt, sym); + assert (sym != NULL); + + if (sym->st_shndx == SHN_XINDEX) + error (EXIT_FAILURE, 0, gettext ("\ +section index too large in dynamic symbol table")); + + /* We do not add the symbol to the dynamic symbol table if + + - the symbol is for a file + - it is not externally visible (internal, hidden) + - if export_all_dynamic is not set and is only defined in + the executable (i.e., it is defined, but not (also) in + in DSO) + + Set symstrent[cnt] to NULL in case an entry is ignored. */ + if (XELF_ST_TYPE (sym->st_info) == STT_FILE + || XELF_ST_VISIBILITY (sym->st_other) == STV_INTERNAL + || XELF_ST_VISIBILITY (sym->st_other) == STV_HIDDEN + || (!ndxtosym[cnt]->in_dso && ndxtosym[cnt]->defined)) + { + symstrent[cnt] = NULL; + continue; + } + + size_t idx; + if (ndxtosym[cnt]->in_dso && ndxtosym[cnt]->type == STT_FUNC) + { + idx = plt_idx++; + assert (idx < 1 + ld_state.nplt); + } + else + { + idx = obj_idx++; + assert (idx < nsym_dyn_allocated); + } + + /* Add the version information. */ + if (versymdata != NULL) + { + struct symbol *symp = ndxtosym[cnt]; + + if (symp->file->verdefdata != NULL) + { + GElf_Versym versym; + + gelf_getversym (symp->file->versymdata, symp->symidx, + &versym); + + (void) gelf_update_versym (versymdata, idx, + &symp->file->verdefused[versym]); + } + else + { + /* XXX Add support for version definitions. */ + GElf_Versym global = VER_NDX_GLOBAL; + (void) gelf_update_versym (versymdata, idx, &global); + } + } + + /* Store the index of the symbol in the dynamic symbol table. */ + ndxtosym[cnt]->outdynsymidx = idx; + + /* Create a new string table entry. */ + const char *str = ndxtosym[cnt]->name; + symstrent[cnt] = ebl_strtabadd (dynstrtab, str, 0); + hashcodes[idx] = elf_hash (str); + ++nsym_dyn; + } + assert (nsym_dyn == obj_idx); + assert (ld_state.nplt + 1 == plt_idx); + + /* Update the information about the symbol section. */ + if (versymdata != NULL) + { + /* Correct the size now that we know how many entries the + dynamic symbol table has. */ + versymdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_HALF, + nsym_dyn); + + /* Add the reference to the symbol table. */ + xelf_getshdr (versymscn, shdr); + assert (shdr != NULL); + + shdr->sh_link = ld_state.dynsymscnidx; + + (void) xelf_update_shdr (versymscn, shdr); + } + } + + if (ld_state.file_type != relocatable_file_type) + { + size_t nbucket; + Elf32_Word *bucket; + Elf32_Word *chain; + size_t nchain; + Elf_Scn *hashscn; + Elf_Data *hashdata; + + /* Finalize the dynamic string table. */ + ebl_strtabfinalize (dynstrtab, dynstrdata); + + /* Determine the "optimal" bucket size. */ + nbucket = optimal_bucket_size (hashcodes, nsym_dyn, ld_state.optlevel); + + /* Create the .hash section data structures. */ + assert (ld_state.hashscnidx != 0); + hashscn = elf_getscn (ld_state.outelf, ld_state.hashscnidx); + xelf_getshdr (hashscn, shdr); + hashdata = elf_newdata (hashscn); + if (shdr == NULL || hashdata == NULL) + error (EXIT_FAILURE, 0, gettext ("\ +cannot create hash table section for output file: %s"), + elf_errmsg (-1)); + + shdr->sh_link = ld_state.dynsymscnidx; + (void) xelf_update_shdr (hashscn, shdr); + + hashdata->d_size = (2 + nsym_dyn + nbucket) * sizeof (Elf32_Word); + hashdata->d_buf = xcalloc (1, hashdata->d_size); + hashdata->d_align = sizeof (Elf32_Word); + hashdata->d_type = ELF_T_WORD; + hashdata->d_off = 0; + + ((Elf32_Word *) hashdata->d_buf)[0] = nbucket; + ((Elf32_Word *) hashdata->d_buf)[1] = nsym_dyn; + bucket = &((Elf32_Word *) hashdata->d_buf)[2]; + chain = &((Elf32_Word *) hashdata->d_buf)[2 + nbucket]; + + /* Haven't yet filled in any chain value. */ + nchain = 0; + + /* Now put the names in. */ + for (cnt = nsym_local; cnt < nsym; ++cnt) + if (symstrent[cnt] != NULL) + { + XElf_Sym_vardef (sym); + size_t hashidx; + size_t dynidx = ndxtosym[cnt]->outdynsymidx; + +#if NATIVE_ELF != 0 + XElf_Sym *osym; + memcpy (xelf_getsym (dynsymdata, dynidx, sym), + xelf_getsym (symdata, cnt, osym), + sizeof (XElf_Sym)); +#else + xelf_getsym (symdata, cnt, sym); + assert (sym != NULL); +#endif + + sym->st_name = ebl_strtaboffset (symstrent[cnt]); + + (void) xelf_update_sym (dynsymdata, dynidx, sym); + + /* Add to the hash table. */ + hashidx = hashcodes[dynidx] % nbucket; + if (bucket[hashidx] == 0) + bucket[hashidx] = dynidx; + else + { + hashidx = bucket[hashidx]; + while (chain[hashidx] != 0) + hashidx = chain[hashidx]; + + chain[hashidx] = dynidx; + } + } + + free (hashcodes); + + /* We don't need the map from the symbol table index to the symbol + structure anymore. */ + free (ndxtosym); + + /* Create the required version section. */ + if (ld_state.verneedscnidx != 0) + { + Elf_Scn *verneedscn; + Elf_Data *verneeddata; + struct usedfiles *runp; + size_t verneed_size = xelf_fsize (ld_state.outelf, ELF_T_VNEED, 1); + size_t vernaux_size = xelf_fsize (ld_state.outelf, ELF_T_VNAUX, 1); + size_t offset; + int ntotal; + + verneedscn = elf_getscn (ld_state.outelf, ld_state.verneedscnidx); + xelf_getshdr (verneedscn, shdr); + verneeddata = elf_newdata (verneedscn); + if (shdr == NULL || verneeddata == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create versioning data: %s"), + elf_errmsg (-1)); + + verneeddata->d_size = (ld_state.nverdeffile * verneed_size + + ld_state.nverdefused * vernaux_size); + verneeddata->d_buf = xmalloc (verneeddata->d_size); + verneeddata->d_type = ELF_T_VNEED; + verneeddata->d_align = xelf_fsize (ld_state.outelf, ELF_T_WORD, 1); + verneeddata->d_off = 0; + + offset = 0; + ntotal = ld_state.nverdeffile; + runp = ld_state.dsofiles->next; + do + { + offset = create_verneed_data (offset, verneeddata, runp, + &ntotal); + runp = runp->next; + } + while (ntotal > 0 && runp != ld_state.dsofiles->next); + + if (ntotal > 0) + { + runp = ld_state.needed->next; + do + { + offset = create_verneed_data (offset, verneeddata, runp, + &ntotal); + runp = runp->next; + } + while (ntotal > 0 && runp != ld_state.needed->next); + } + + assert (offset == verneeddata->d_size); + + /* Add the needed information to the section header. */ + shdr->sh_link = ld_state.dynstrscnidx; + shdr->sh_info = ld_state.nverdeffile; + (void) xelf_update_shdr (verneedscn, shdr); + } + + /* Adjust the section size. */ + dynsymdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_SYM, nsym_dyn); + if (versymdata != NULL) + versymdata->d_size = xelf_fsize (ld_state.outelf, ELF_T_HALF, + nsym_dyn); + + /* Add the remaining information to the section header. */ + xelf_getshdr (dynsymscn, shdr); + /* There is always exactly one local symbol. */ + shdr->sh_info = 1; + /* Reference the string table. */ + shdr->sh_link = ld_state.dynstrscnidx; + /* Write the updated info back. */ + (void) xelf_update_shdr (dynsymscn, shdr); + } + else + /* We don't need the map from the symbol table index to the symbol + structure anymore. */ + free (ndxtosym); + + /* We don't need the string table anymore. */ + free (symstrent); + + /* Remember the total number of symbols in the dynamic symbol table. */ + ld_state.ndynsym = nsym_dyn; + + /* Fill in the section header information. */ + symscn = elf_getscn (ld_state.outelf, ld_state.symscnidx); + xelf_getshdr (symscn, shdr); + if (shdr == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create symbol table for output file: %s"), + elf_errmsg (-1)); + + shdr->sh_type = SHT_SYMTAB; + shdr->sh_link = ld_state.strscnidx; + shdr->sh_info = nsym_local; + shdr->sh_entsize = xelf_fsize (ld_state.outelf, ELF_T_SYM, 1); + + (void) xelf_update_shdr (symscn, shdr); + + + /* Add names for the generated sections. */ + if (ld_state.symscnidx != 0) + symtab_ent = ebl_strtabadd (ld_state.shstrtab, ".symtab", 8); + if (ld_state.xndxscnidx != 0) + xndx_ent = ebl_strtabadd (ld_state.shstrtab, ".symtab_shndx", 14); + if (ld_state.strscnidx != 0) + strtab_ent = ebl_strtabadd (ld_state.shstrtab, ".strtab", 8); + /* At this point we would have to test for failures in the + allocation. But we skip this. First, the problem will be caught + latter when doing more allocations for the section header table. + Even if this would not be the case all that would happen is that + the section names are empty. The binary would still be usable if + it is an executable or a DSO. Not adding the test here saves + quite a bit of code. */ + + + /* Finally create the section for the section header string table. */ + shstrtab_scn = elf_newscn (ld_state.outelf); + shstrtab_ndx = elf_ndxscn (shstrtab_scn); + if (unlikely (shstrtab_ndx == SHN_UNDEF)) + error (EXIT_FAILURE, 0, + gettext ("cannot create section header string section: %s"), + elf_errmsg (-1)); + + /* Add the name of the section to the string table. */ + shstrtab_ent = ebl_strtabadd (ld_state.shstrtab, ".shstrtab", 10); + if (unlikely (shstrtab_ent == NULL)) + error (EXIT_FAILURE, errno, + gettext ("cannot create section header string section")); + + /* Finalize the section header string table. */ + data = elf_newdata (shstrtab_scn); + if (data == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section header string section: %s"), + elf_errmsg (-1)); + ebl_strtabfinalize (ld_state.shstrtab, data); + + /* Now we know the string offsets for all section names. */ + for (cnt = 0; cnt < ld_state.nallsections; ++cnt) + if (ld_state.allsections[cnt]->scnidx != 0) + { + Elf_Scn *scn; + + scn = elf_getscn (ld_state.outelf, ld_state.allsections[cnt]->scnidx); + + xelf_getshdr (scn, shdr); + assert (shdr != NULL); + + shdr->sh_name = ebl_strtaboffset (ld_state.allsections[cnt]->nameent); + + if (xelf_update_shdr (scn, shdr) == 0) + assert (0); + } + + /* Add the names for the generated sections to the respective + section headers. */ + if (symtab_ent != NULL) + { + Elf_Scn *scn = elf_getscn (ld_state.outelf, ld_state.symscnidx); + + xelf_getshdr (scn, shdr); + /* This cannot fail, we already accessed the header before. */ + assert (shdr != NULL); + + shdr->sh_name = ebl_strtaboffset (symtab_ent); + + (void) xelf_update_shdr (scn, shdr); + } + if (xndx_ent != NULL) + { + Elf_Scn *scn = elf_getscn (ld_state.outelf, ld_state.xndxscnidx); + + xelf_getshdr (scn, shdr); + /* This cannot fail, we already accessed the header before. */ + assert (shdr != NULL); + + shdr->sh_name = ebl_strtaboffset (xndx_ent); + + (void) xelf_update_shdr (scn, shdr); + } + if (strtab_ent != NULL) + { + Elf_Scn *scn = elf_getscn (ld_state.outelf, ld_state.strscnidx); + + xelf_getshdr (scn, shdr); + /* This cannot fail, we already accessed the header before. */ + assert (shdr != NULL); + + shdr->sh_name = ebl_strtaboffset (strtab_ent); + + (void) xelf_update_shdr (scn, shdr); + } + + /* And the section header table section itself. */ + xelf_getshdr (shstrtab_scn, shdr); + if (shdr == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot create section header string section: %s"), + elf_errmsg (-1)); + + shdr->sh_name = ebl_strtaboffset (shstrtab_ent); + shdr->sh_type = SHT_STRTAB; + + if (unlikely (xelf_update_shdr (shstrtab_scn, shdr) == 0)) + error (EXIT_FAILURE, 0, + gettext ("cannot create section header string section: %s"), + elf_errmsg (-1)); + + + /* Add the correct section header info to the section group sections. */ + groups = ld_state.groups; + while (groups != NULL) + { + Elf_Scn *scn; + struct scngroup *oldp; + Elf32_Word si; + + scn = elf_getscn (ld_state.outelf, groups->outscnidx); + xelf_getshdr (scn, shdr); + assert (shdr != NULL); + + shdr->sh_name = ebl_strtaboffset (groups->nameent); + shdr->sh_type = SHT_GROUP; + shdr->sh_flags = 0; + shdr->sh_link = ld_state.symscnidx; + shdr->sh_entsize = sizeof (Elf32_Word); + + /* Determine the index for the signature symbol. */ + si = groups->symbol->file->symindirect[groups->symbol->symidx]; + if (si == 0) + { + assert (groups->symbol->file->symref[groups->symbol->symidx] + != NULL); + si = groups->symbol->file->symref[groups->symbol->symidx]->outsymidx; + assert (si != 0); + } + shdr->sh_info = ld_state.dblindirect[si]; + + (void) xelf_update_shdr (scn, shdr); + + oldp = groups; + groups = groups->next; + free (oldp); + } + + + if (ld_state.file_type != relocatable_file_type) + { + size_t nphdr; + XElf_Addr addr; + struct output_segment *segment; + Elf_Scn *scn; + Elf32_Word nsec; + XElf_Phdr_vardef (phdr); + + /* Every executable needs a program header. The number of entries + varies. One exists for each segment. Each SHT_NOTE section gets + one, too. For dynamically linked executables we have to create + one for the program header, the interpreter, and the dynamic + section. First count the number of segments. + + XXX Determine whether the segment is non-empty. */ + nphdr = 0; + segment = ld_state.output_segments; + while (segment != NULL) + { + ++nphdr; + segment = segment->next; + } + + /* Add the number of SHT_NOTE sections. We counted them earlier. */ + nphdr += ld_state.nnotesections; + + /* If we create a DSO or the file is linked against DSOs we have three + more entries: INTERP, PHDR, DYNAMIC. */ + if (dynamically_linked_p ()) + nphdr += 3; + + /* Create the program header structure. */ + if (xelf_newphdr (ld_state.outelf, nphdr) == 0) + error (EXIT_FAILURE, 0, gettext ("cannot create program header: %s"), + elf_errmsg (-1)); + + + /* Determine the section sizes and offsets. We have to do this + to be able to determine the memory layout (which normally + differs from the file layout). */ + if (elf_update (ld_state.outelf, ELF_C_NULL) == -1) + error (EXIT_FAILURE, 0, gettext ("while determining file layout: %s"), + elf_errmsg (-1)); + + + /* Now determine the memory addresses of all the sections and + segments. */ + nsec = 0; + scn = elf_getscn (ld_state.outelf, ld_state.allsections[nsec]->scnidx); + xelf_getshdr (scn, shdr); + assert (shdr != NULL); + + /* The address we start with is the offset of the first (not + zeroth) section. */ + addr = shdr->sh_offset; + + /* The index of the first loadable segment. */ + nphdr = 1 + (dynamically_linked_p () == true) * 2; + + segment = ld_state.output_segments; + while (segment != NULL) + { + struct output_rule *orule; + bool first_section = true; + XElf_Off nobits_size = 0; + XElf_Off memsize = 0; + + /* the minimum alignment is a page size. */ + segment->align = ld_state.pagesize; + + for (orule = segment->output_rules; orule != NULL; + orule = orule->next) + if (orule->tag == output_section) + { + XElf_Off oldoff; + + /* See whether this output rule corresponds to the next + section. Yes, this is a pointer comparison. */ + if (ld_state.allsections[nsec]->name + != orule->val.section.name) + /* No, ignore this output rule. */ + continue; + + /* We assign addresses only in segments which are actually + loaded. */ + if (segment->mode != 0) + { + /* Adjust the offset of the input sections. */ + struct scninfo *isect; + struct scninfo *first; + + isect = first = ld_state.allsections[nsec]->last; + if (isect != NULL) + do + isect->offset += addr; + while ((isect = isect->next) != first); + + /* Set the address of current section. */ + shdr->sh_addr = addr; + + /* Write the result back. */ + (void) xelf_update_shdr (scn, shdr); + + /* Remember the address. */ + ld_state.allsections[nsec]->addr = addr; + } + + if (first_section) + { + /* The first segment starts at offset zero. */ + if (segment == ld_state.output_segments) + { + segment->offset = 0; + segment->addr = addr - shdr->sh_offset; + } + else + { + segment->offset = shdr->sh_offset; + segment->addr = addr; + } + + /* Determine the maximum alignment requirement. */ + segment->align = MAX (segment->align, shdr->sh_addralign); + + first_section = false; + } + + memsize = shdr->sh_offset - segment->offset + shdr->sh_size; + if (nobits_size != 0 && shdr->sh_type != SHT_NOTE) + error (EXIT_FAILURE, 0, gettext ("\ +internal error: nobits section follows nobits section")); + if (shdr->sh_type == SHT_NOBITS) + nobits_size += shdr->sh_size; + + /* Determine the new address which is computed using + the difference of the offsets on the sections. Note + that this assumes that the sections following each + other in the section header table are also + consecutive in the file. This is true here because + libelf constructs files this way. */ + oldoff = shdr->sh_offset; + + if (++nsec >= ld_state.nallsections) + break; + + scn = elf_getscn (ld_state.outelf, + ld_state.allsections[nsec]->scnidx); + xelf_getshdr (scn, shdr); + assert (shdr != NULL); + + /* This is the new address resulting from the offsets + in the file. */ + assert (oldoff <= shdr->sh_offset); + addr += shdr->sh_offset - oldoff; + } + else + { + assert (orule->tag == output_assignment); + + if (strcmp (orule->val.assignment->variable, ".") == 0) + /* This is a change of the address. */ + addr = eval_expression (orule->val.assignment->expression, + addr); + else if (orule->val.assignment->sym != NULL) + { + /* This symbol is used. Update the symbol table + entry. */ + XElf_Sym_vardef (sym); + size_t idx; + + /* Note that we do not have to use + xelf_getsymshndx since we only update the + symbol address, not the section + information. */ + idx = dblindirect[orule->val.assignment->sym->outsymidx]; + xelf_getsym (symdata, idx, sym); + sym->st_value = addr; + (void) xelf_update_sym (symdata, idx, sym); + + idx = orule->val.assignment->sym->outdynsymidx; + if (idx != 0) + { + assert (dynsymdata != NULL); + xelf_getsym (dynsymdata, idx, sym); + sym->st_value = addr; + (void) xelf_update_sym (dynsymdata, idx, sym); + } + } + } + + /* Store the segment parameter for loadable segments. */ + if (segment->mode != 0) + { + xelf_getphdr_ptr (ld_state.outelf, nphdr, phdr); + + phdr->p_type = PT_LOAD; + phdr->p_offset = segment->offset; + phdr->p_vaddr = segment->addr; + phdr->p_paddr = phdr->p_vaddr; + phdr->p_filesz = memsize - nobits_size; + phdr->p_memsz = memsize; + phdr->p_flags = segment->mode; + phdr->p_align = segment->align; + + (void) xelf_update_phdr (ld_state.outelf, nphdr, phdr); + ++nphdr; + } + + segment = segment->next; + } + + /* Create the other program header entries. */ + xelf_getehdr (ld_state.outelf, ehdr); + assert (ehdr != NULL); + + xelf_getphdr_ptr (ld_state.outelf, 1, phdr); + phdr->p_type = PT_PHDR; + phdr->p_offset = ehdr->e_phoff; + phdr->p_vaddr = ld_state.output_segments->addr + phdr->p_offset; + phdr->p_paddr = phdr->p_vaddr; + phdr->p_filesz = ehdr->e_phnum * ehdr->e_phentsize; + phdr->p_memsz = phdr->p_filesz; + phdr->p_flags = 0; /* No need to set PF_R or so. */ + phdr->p_align = xelf_fsize (ld_state.outelf, ELF_T_ADDR, 1); + (void) xelf_update_phdr (ld_state.outelf, 0, phdr); + + + /* Adjust the addresses in the addresses of the symbol according + to the load addresses of the sections. */ + if (ld_state.need_symtab) + for (cnt = 1; cnt < nsym; ++cnt) + { + XElf_Sym_vardef (sym); + Elf32_Word shndx; + + xelf_getsymshndx (symdata, xndxdata, cnt, sym, shndx); + assert (sym != NULL); + + if (sym->st_shndx != SHN_XINDEX) + shndx = sym->st_shndx; + + if ((shndx > SHN_UNDEF && shndx < SHN_LORESERVE) + || shndx > SHN_HIRESERVE) + { + /* Note we subtract 1 from the section index since ALLSECTIONS + does not store the dummy section with offset zero. */ + sym->st_value += ld_state.allsections[shndx - 1]->addr; + + /* We don't have to use 'xelf_update_symshndx' since the + section number doesn't change. */ + (void) xelf_update_sym (symdata, cnt, sym); + } + } + + if (ld_state.need_dynsym) + for (cnt = 1; cnt < nsym_dyn; ++cnt) + { + XElf_Sym_vardef (sym); + + xelf_getsym (dynsymdata, cnt, sym); + assert (sym != NULL); + + if (sym->st_shndx > SHN_UNDEF && sym->st_shndx < SHN_LORESERVE) + { + /* Note we subtract 1 from the section index since ALLSECTIONS + does not store the dummy section with offset zero. */ + sym->st_value += ld_state.allsections[sym->st_shndx - 1]->addr; + + /* We don't have to use 'xelf_update_symshndx' since the + section number doesn't change. */ + (void) xelf_update_sym (dynsymdata, cnt, sym); + } + } + + + /* Now is a good time to determine the values of all the symbols + we encountered. */ + // XXX This loop is very inefficient. The hash tab iterator also + // returns all symbols in DSOs. + struct symbol *se; + void *p = NULL; + while ((se = ld_symbol_tab_iterate (&ld_state.symbol_tab, &p)) != NULL) + if (! se->in_dso) + { + XElf_Sym_vardef (sym); + + addr = 0; + + if (se->outdynsymidx != 0) + { + xelf_getsym (dynsymdata, se->outdynsymidx, sym); + assert (sym != NULL); + addr = sym->st_value; + } + else if (se->outsymidx != 0) + { + assert (dblindirect[se->outsymidx] != 0); + xelf_getsym (symdata, dblindirect[se->outsymidx], sym); + assert (sym != NULL); + addr = sym->st_value; + } + else + abort (); + + se->merge.value = addr; + } + + /* Complete the header of the .rel.dyn/.rela.dyn section. Point + to the symbol table. The sh_info field is left zero since + there is no specific section the contained relocations are + for. */ + if (ld_state.reldynscnidx != 0) + { + assert (ld_state.dynsymscnidx != 0); + scn = elf_getscn (ld_state.outelf, ld_state.reldynscnidx); + xelf_getshdr (scn, shdr); + assert (shdr != NULL); + + shdr->sh_link = ld_state.dynsymscnidx; + + (void) xelf_update_shdr (scn, shdr); + } + + /* Fill in the dynamic segment/section. */ + if (dynamically_linked_p ()) + { + Elf_Scn *outscn; + + assert (ld_state.interpscnidx != 0); + xelf_getshdr (elf_getscn (ld_state.outelf, ld_state.interpscnidx), + shdr); + assert (shdr != NULL); + + /* The interpreter string. */ + // XXX Do we need to support files (DSOs) without interpreters? + xelf_getphdr_ptr (ld_state.outelf, 1, phdr); + phdr->p_type = PT_INTERP; + phdr->p_offset = shdr->sh_offset; + phdr->p_vaddr = shdr->sh_addr; + phdr->p_paddr = phdr->p_vaddr; + phdr->p_filesz = shdr->sh_size; + phdr->p_memsz = phdr->p_filesz; + phdr->p_flags = 0; /* No need to set PF_R or so. */ + phdr->p_align = 1; /* It's a string. */ + + (void) xelf_update_phdr (ld_state.outelf, 1, phdr); + + /* The pointer to the dynamic section. We this we need to + get the information for the dynamic section first. */ + assert (ld_state.dynamicscnidx); + outscn = elf_getscn (ld_state.outelf, ld_state.dynamicscnidx); + xelf_getshdr (outscn, shdr); + assert (shdr != NULL); + + xelf_getphdr_ptr (ld_state.outelf, 2, phdr); + phdr->p_type = PT_DYNAMIC; + phdr->p_offset = shdr->sh_offset; + phdr->p_vaddr = shdr->sh_addr; + phdr->p_paddr = phdr->p_vaddr; + phdr->p_filesz = shdr->sh_size; + phdr->p_memsz = phdr->p_filesz; + phdr->p_flags = 0; /* No need to set PF_R or so. */ + phdr->p_align = shdr->sh_addralign; + + (void) xelf_update_phdr (ld_state.outelf, 2, phdr); + + /* Fill in the reference to the .dynstr section. */ + assert (ld_state.dynstrscnidx != 0); + shdr->sh_link = ld_state.dynstrscnidx; + (void) xelf_update_shdr (outscn, shdr); + + /* And fill the remaining entries. */ + Elf_Data *dyndata = elf_getdata (outscn, NULL); + assert (dyndata != NULL); + + /* Add the DT_NEEDED entries. */ + if (ld_state.ndsofiles > 0) + { + struct usedfiles *runp = ld_state.dsofiles->next; + + do + if (! ld_state.ignore_unused_dsos || runp->used) + { + /* Add the position-dependent flag if necessary. */ + if (runp->lazyload) + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_POSFLAG_1, DF_P1_LAZYLOAD); + + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_NEEDED, + ebl_strtaboffset (runp->sonameent)); + } + while ((runp = runp->next) != ld_state.dsofiles->next); + } + + /* We can finish the DT_RUNPATH/DT_RPATH entries now. */ + if (ld_state.rxxpath_strent != NULL) + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + ld_state.rxxpath_tag, + ebl_strtaboffset (ld_state.rxxpath_strent)); + + /* Reference to initialization and finalization functions. */ + // XXX This code depends on symbol table being relocated. + if (ld_state.init_symbol != NULL) + { + XElf_Sym_vardef (sym); + + if (ld_state.need_symtab) + xelf_getsym (symdata, + dblindirect[ld_state.init_symbol->outsymidx], + sym); + else + xelf_getsym (dynsymdata, ld_state.init_symbol->outdynsymidx, + sym); + assert (sym != NULL); + + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_INIT, sym->st_value); + } + if (ld_state.fini_symbol != NULL) + { + XElf_Sym_vardef (sym); + + if (ld_state.need_symtab) + xelf_getsym (symdata, + dblindirect[ld_state.fini_symbol->outsymidx], + sym); + else + xelf_getsym (dynsymdata, ld_state.fini_symbol->outdynsymidx, + sym); + assert (sym != NULL); + + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_FINI, sym->st_value); + } + // XXX Support init,fini,preinit arrays + + /* The hash table which comes with dynamic symbol table. */ + xelf_getshdr (elf_getscn (ld_state.outelf, ld_state.hashscnidx), + shdr); + assert (shdr != NULL); + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, DT_HASH, + shdr->sh_addr); + + /* Reference to the symbol table section. */ + assert (ld_state.dynsymscnidx != 0); + xelf_getshdr (elf_getscn (ld_state.outelf, ld_state.dynsymscnidx), + shdr); + assert (shdr != NULL); + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, DT_SYMTAB, + shdr->sh_addr); + + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, DT_SYMENT, + xelf_fsize (ld_state.outelf, ELF_T_SYM, 1)); + + /* And the string table which comes with it. */ + xelf_getshdr (elf_getscn (ld_state.outelf, ld_state.dynstrscnidx), + shdr); + assert (shdr != NULL); + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, DT_STRTAB, + shdr->sh_addr); + + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, DT_STRSZ, + shdr->sh_size); + + /* Add the entries related to the .plt. */ + if (ld_state.nplt > 0) + { + xelf_getshdr (elf_getscn (ld_state.outelf, ld_state.gotscnidx), + shdr); + assert (shdr != NULL); + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + // XXX This should probably be machine + // dependent. + DT_PLTGOT, shdr->sh_addr); + + xelf_getshdr (elf_getscn (ld_state.outelf, + ld_state.pltrelscnidx), shdr); + assert (shdr != NULL); + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_PLTRELSZ, shdr->sh_size); + + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_JMPREL, shdr->sh_addr); + + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_PLTREL, REL_TYPE (statep)); + } + + if (ld_state.relsize_total > 0) + { + int rel = REL_TYPE (statep); + xelf_getshdr (elf_getscn (ld_state.outelf, + ld_state.reldynscnidx), shdr); + assert (shdr != NULL); + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + rel, shdr->sh_addr); + + /* Trick ahead. Use arithmetic to get the right tag. + We check the validity of this assumption in the asserts. */ + assert (DT_RELASZ - DT_RELA == 1); + assert (DT_RELSZ - DT_REL == 1); + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + rel + 1, shdr->sh_size); + + /* Similar for the entry size tag. */ + assert (DT_RELAENT - DT_RELA == 2); + assert (DT_RELENT - DT_REL == 2); + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + rel + 2, + rel == DT_REL + ? xelf_fsize (ld_state.outelf, ELF_T_REL, 1) + : xelf_fsize (ld_state.outelf, ELF_T_RELA, + 1)); + } + + if (ld_state.verneedscnidx != 0) + { + xelf_getshdr (elf_getscn (ld_state.outelf, + ld_state.verneedscnidx), shdr); + assert (shdr != NULL); + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_VERNEED, shdr->sh_addr); + + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_VERNEEDNUM, ld_state.nverdeffile); + } + + if (ld_state.versymscnidx != 0) + { + xelf_getshdr (elf_getscn (ld_state.outelf, + ld_state.versymscnidx), shdr); + assert (shdr != NULL); + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_VERSYM, shdr->sh_addr); + } + + /* We always create the DT_DEBUG entry. */ + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, DT_DEBUG, 0); + assert (ld_state.ndynamic_filled < ld_state.ndynamic); + + /* Add the flag words if necessary. */ + if (ld_state.dt_flags != 0) + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, DT_FLAGS, + ld_state.dt_flags); + + /* Create entry for the DT_FLAGS_1 flag. */ + if (ld_state.dt_flags_1 != 0) + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_FLAGS_1, ld_state.dt_flags_1); + + /* Create entry for the DT_FEATURE_1 flag. */ + if (ld_state.dt_feature_1 != 0) + new_dynamic_entry (dyndata, ld_state.ndynamic_filled++, + DT_FEATURE_1, ld_state.dt_feature_1); + + assert (ld_state.ndynamic_filled <= ld_state.ndynamic); + } + } + + + // XXX The following code isn't nice. We use two different + // mechanisms to handle relocations, one for relocatable files, one + // for executables and DSOs. Maybe this is the best method but also + // maybe it can be somewhat unified. + + /* Now that we created the symbol table we can add the reference to + it in the sh_link field of the section headers of the relocation + sections. */ + while (rellist != NULL) + { + assert (ld_state.file_type == relocatable_file_type); + Elf_Scn *outscn; + + outscn = elf_getscn (ld_state.outelf, rellist->scnidx); + xelf_getshdr (outscn, shdr); + /* This must not fail since we did it before. */ + assert (shdr != NULL); + + /* Remember the symbol table which belongs to the relocation section. */ + shdr->sh_link = ld_state.symscnidx; + + /* And the reference to the section which is relocated by this + relocation section. We use the info from the first input + section but all records should have the same information. */ + shdr->sh_info = + rellist->scninfo->fileinfo->scninfo[SCNINFO_SHDR (rellist->scninfo->shdr).sh_info].outscnndx; + + + /* Perform the actual relocations. We only have to adjust + offsets and symbol indices. */ + RELOCATE_SECTION (statep, outscn, rellist->scninfo, dblindirect); + + /* Store the changes. */ + (void) xelf_update_shdr (outscn, shdr); + + /* Up to the next relocation section. */ + rellist = rellist->next; + } + + if (ld_state.rellist != NULL) + { + assert (ld_state.file_type != relocatable_file_type); + /* Create the relocations for the output file. */ + CREATE_RELOCATIONS (statep, dblindirect); + } + + + /* We need the ELF header once more. */ + xelf_getehdr (ld_state.outelf, ehdr); + assert (ehdr != NULL); + + /* Set the section header string table index. */ + if (likely (shstrtab_ndx < SHN_HIRESERVE) + && likely (shstrtab_ndx != SHN_XINDEX)) + ehdr->e_shstrndx = shstrtab_ndx; + else + { + /* We have to put the section index in the sh_link field of the + zeroth section header. */ + Elf_Scn *scn = elf_getscn (ld_state.outelf, 0); + + xelf_getshdr (scn, shdr); + if (unlikely (shdr == NULL)) + error (EXIT_FAILURE, 0, + gettext ("cannot get header of 0th section: %s"), + elf_errmsg (-1)); + + shdr->sh_link = shstrtab_ndx; + + (void) xelf_update_shdr (scn, shdr); + + ehdr->e_shstrndx = SHN_XINDEX; + } + + if (ld_state.file_type != relocatable_file_type) + /* DSOs and executables have to define the entry point symbol. */ + ehdr->e_entry = find_entry_point (); + + if (unlikely (xelf_update_ehdr (ld_state.outelf, ehdr) == 0)) + error (EXIT_FAILURE, 0, + gettext ("cannot update ELF header: %s"), + elf_errmsg (-1)); + + + /* Free the data which we don't need anymore. */ + free (ld_state.dblindirect); + + + /* Finalize the .plt section the what belongs to them. */ + FINALIZE_PLT (statep, nsym, nsym_dyn); + + return 0; +} + + +/* This is a function which must be specified in all backends. */ +static void +ld_generic_relocate_section (struct ld_state *statep, Elf_Scn *outscn, + struct scninfo *firstp, + const Elf32_Word *dblindirect) +{ + error (EXIT_FAILURE, 0, gettext ("\ +linker backend didn't specify function to relocate section")); + /* NOTREACHED */ +} + + +/* Finalize the output file. */ +static int +ld_generic_finalize (struct ld_state *statep) +{ + /* Write out the ELF file data. */ + if (elf_update (ld_state.outelf, ELF_C_WRITE) == -1) + error (EXIT_FAILURE, 0, gettext ("while writing output file: %s"), + elf_errmsg (-1)); + + /* Free the resources. */ + if (elf_end (ld_state.outelf) != 0) + error (EXIT_FAILURE, 0, gettext ("while finishing output file: %s"), + elf_errmsg (-1)); + + /* Get the file status of the temporary file. */ + struct stat temp_st; + if (fstat (ld_state.outfd, &temp_st) != 0) + error (EXIT_FAILURE, errno, gettext ("cannot stat output file")); + + /* Now it's time to rename the file. Remove an old existing file + first. */ + if (rename (ld_state.tempfname, ld_state.outfname) != 0) + /* Something went wrong. */ + error (EXIT_FAILURE, errno, gettext ("cannot rename output file")); + + /* Make sure the output file is really the one we created. */ + struct stat new_st; + if (stat (ld_state.outfname, &new_st) != 0 + || new_st.st_ino != temp_st.st_ino + || new_st.st_dev != temp_st.st_dev) + { + /* Wow, somebody overwrote the output file, probably some intruder. */ + unlink (ld_state.outfname); + error (EXIT_FAILURE, 0, gettext ("\ +WARNING: temporary output file overwritten before linking finished")); + } + + /* Close the file descriptor. */ + (void) close (ld_state.outfd); + + /* Signal the cleanup handler that the file is correctly created. */ + ld_state.tempfname = NULL; + + return 0; +} + + +static bool +ld_generic_special_section_number_p (struct ld_state *statep, size_t number) +{ + /* There are no special section numbers in the gABI. */ + return false; +} + + +static bool +ld_generic_section_type_p (struct ld_state *statep, GElf_Word type) +{ + if (type < SHT_NUM + /* XXX Enable the following two when implemented. */ + // || type == SHT_GNU_LIBLIST + // || type == SHT_CHECKSUM + /* XXX Eventually include SHT_SUNW_move, SHT_SUNW_COMDAT, and + SHT_SUNW_syminfo. */ + || (type >= SHT_GNU_verdef && type <= SHT_GNU_versym)) + return true; + + return false; +} + + +static XElf_Xword +ld_generic_dynamic_section_flags (struct ld_state *statep) +{ + /* By default the .dynamic section is writable (and is of course + loaded). Few architecture differ from this. */ + return SHF_ALLOC | SHF_WRITE; +} + + +static void +ld_generic_initialize_plt (struct ld_state *statep, Elf_Scn *scn) +{ + /* This cannot be implemented generally. There should have been a + machine dependent implementation and we should never have arrived + here. */ + error (EXIT_FAILURE, 0, gettext ("no machine specific '%s' implementation"), + "initialize_plt"); +} + + +static void +ld_generic_initialize_pltrel (struct ld_state *statep, Elf_Scn *scn) +{ + /* This cannot be implemented generally. There should have been a + machine dependent implementation and we should never have arrived + here. */ + error (EXIT_FAILURE, 0, gettext ("no machine specific '%s' implementation"), + "initialize_pltrel"); +} + + +static void +ld_generic_initialize_got (struct ld_state *statep, Elf_Scn *scn) +{ + /* This cannot be implemented generally. There should have been a + machine dependent implementation and we should never have arrived + here. */ + error (EXIT_FAILURE, 0, gettext ("no machine specific '%s' implementation"), + "initialize_got"); +} + + +static void +ld_generic_finalize_plt (struct ld_state *statep, size_t nsym, size_t nsym_dyn) +{ + /* By default we assume that nothing has to be done. */ +} + + +static int +ld_generic_rel_type (struct ld_state *statep) +{ + /* This cannot be implemented generally. There should have been a + machine dependent implementation and we should never have arrived + here. */ + error (EXIT_FAILURE, 0, gettext ("no machine specific '%s' implementation"), + "rel_type"); + /* Just to keep the compiler calm. */ + return 0; +} + + +static void +ld_generic_count_relocations (struct ld_state *statep, struct scninfo *scninfo) +{ + /* This cannot be implemented generally. There should have been a + machine dependent implementation and we should never have arrived + here. */ + error (EXIT_FAILURE, 0, gettext ("no machine specific '%s' implementation"), + "count_relocations"); +} + + +static void +ld_generic_create_relocations (struct ld_state *statep, + const Elf32_Word *dblindirect) +{ + /* This cannot be implemented generally. There should have been a + machine dependent implementation and we should never have arrived + here. */ + error (EXIT_FAILURE, 0, gettext ("no machine specific '%s' implementation"), + "create_relocations"); +} diff --git a/src/ldlex.l b/src/ldlex.l new file mode 100644 index 0000000..9e30a86 --- /dev/null +++ b/src/ldlex.l @@ -0,0 +1,349 @@ +%{ +/* Copyright (C) 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include "ldscript.h" + +/* We sure use no threads to read the stream, so use the _unlocked + variants of the functions. */ +#undef getc +#define getc(s) getc_unlocked (s) +#undef ferror +#define ferror(s) ferror_unlocked (s) +#undef fread +#define fread(b, m, n, s) fread_unlocked (b, m, n, s) +#undef fwrite +#define fwrite(b, m, n, s) fwrite_unlocked (b, m, n, s) + +/* ECHO must be redefined since the default implementation ignores + the return value of fwrite_unlocked. */ +#define ECHO do { size_t n__ __attribute__ ((unused)) \ + = fwrite (yytext, yyleng, 1, yyout); } while (0) + +/* Defined in ld.c. */ +extern int ld_scan_version_script; + +#define MAX_PREPDEPTH 20 +static enum prepstate +{ + prep_normal, + skip_if, + skip_to_endif +} prepstate[MAX_PREPDEPTH]; +static int prepdepth; + +static void eat_comment (void); +static void eat_to_eol (bool empty); +static int attrib_convert (int c); +static void push_state (enum prepstate); +static int pop_state (void); +static int handle_ifdef (void); +static void invalid_char (int ch); +%} + +ID [a-zA-Z0-9_.*?]+ +FILENAMECHAR1 [a-zA-Z0-9_/.\\~] +FILENAMECHAR [^][{}[:space:]():;]+ +HEX 0[xX][0-9a-fA-F]+[kKmM]? +OCT 0[0-7]*[kKmM]? +DEC [0-9]+[kKmM]? +WHITE [[:space:]]+ + +%option yylineno +%option never-interactive +%option noyywrap + +%x IGNORE + +%% + if (unlikely (ld_scan_version_script)) + { + ld_scan_version_script = -1; + return kVERSION_SCRIPT; + } + +^"#"ifdef/[[:space:]] { BEGIN (handle_ifdef ()); } +^"#"else/[[:space:]\n] { eat_to_eol (true); + push_state (skip_to_endif); + BEGIN (IGNORE); } +^"#"elifdef/[[:space:]] { eat_to_eol (false); + push_state (skip_to_endif); + BEGIN (IGNORE); } +^"#"endif/[[:space:]\n] { eat_to_eol (true) ; } + +^"#"ifdef/[[:space:]\n] { eat_to_eol (false); + push_state (skip_to_endif); } +^"#"else/[[:space:]\n] { eat_to_eol (true); + assert (prepdepth > 0); + if (prepstate[prepdepth - 1] == skip_if) + { + /* Back to normal processing. */ + assert (prepdepth == 1); + BEGIN (pop_state ()); + } + } +^"#"elifdef/[[:space:]] { assert (prepdepth > 0); + if (prepstate[prepdepth - 1] == skip_if) + { + /* Maybe this symbol is defined. */ + pop_state (); + BEGIN (handle_ifdef ()); + } + } +^"#"endif/[[:space:]\n] { eat_to_eol (true); + BEGIN (pop_state ()); } +.|\n { /* nothing */ } + + +"/*" { eat_comment (); } + +ALIGN { return kALIGN; } +AS_NEEDED { return kAS_NEEDED; } +ENTRY { return kENTRY; } +EXCLUDE_FILE { return kEXCLUDE_FILE; } +"global:" { return kGLOBAL; } +GROUP { return kGROUP; } +INPUT { return kINPUT; } +INTERP { return kINTERP; } +KEEP { return kKEEP; } +"local:" { return kLOCAL; } +OUTPUT_FORMAT { return kOUTPUT_FORMAT; } +PAGESIZE { return kPAGESIZE; } +PROVIDE { return kPROVIDE; } +SEARCH_DIR { return kSEARCH_DIR; } +SEGMENT { return kSEGMENT; } +SIZEOF_HEADERS { return kSIZEOF_HEADERS; } +SORT { return kSORT; } +VERSION { return kVERSION; } + +"["([RWX]){0,3}"]" { int cnt = 1 ; + ldlval.num = 0; + while (cnt < yyleng - 1) + ldlval.num |= attrib_convert (yytext[cnt++]); + return kMODE; } + +"{" { return '{'; } +"}" { return '}'; } +"(" { return '('; } +")" { return ')'; } +":" { return ':'; } +";" { return ';'; } +"=" { return '='; } +"+" { ldlval.op = exp_plus; return kADD_OP; } +"-" { ldlval.op = exp_minus; return kADD_OP; } +"*" { return '*'; } +"/" { ldlval.op = exp_div; return kMUL_OP; } +"%" { ldlval.op = exp_mod; return kMUL_OP; } +"&" { return '&'; } +"|" { return '|'; } + +"," { return ','; } + +{HEX}|{OCT}|{DEC} { char *endp; + ldlval.num = strtoumax (yytext, &endp, 0); + if (*endp != '\0') + { + if (tolower (*endp) == 'k') + ldlval.num *= 1024; + else + { + assert (tolower (*endp) == 'm'); + ldlval.num *= 1024 * 1024; + } + } + return kNUM; } + +{ID} { ldlval.str = obstack_strndup (&ld_state.smem, + yytext, yyleng); + return kID; } + +{FILENAMECHAR1}{FILENAMECHAR} { ldlval.str = obstack_strndup (&ld_state.smem, + yytext, yyleng); + return kFILENAME; } + +{WHITE} { /* IGNORE */ } + +. { invalid_char (*yytext); } + +%% + +static void +eat_comment (void) +{ + while (1) + { + int c = input (); + + while (c != '*' && c != EOF) + c = input (); + + if (c == '*') + { + c = input (); + while (c == '*') + c = input (); + if (c == '/') + break; + } + + if (c == EOF) + { + /* XXX Use the setjmp buffer and signal EOF in comment */ + error (0, 0, gettext ("EOF in comment")); + break; + } + } +} + + +static void +eat_to_eol (bool empty) +{ + bool warned = false; + + while (1) + { + int c = input (); + + if (c == EOF) + break; + if (c == '\n') + { + ++yylineno; + break; + } + + if (empty && ! isspace (c) && ! warned) + { + error (0, 0, gettext ("%d: garbage at end of line"), yylineno); + warned = true; + } + } +} + + +static int +attrib_convert (int c) +{ + if (c == 'X') + return PF_X; + if (c == 'W') + return PF_W; + assert (c == 'R'); + return PF_R; +} + + +static void +push_state (enum prepstate state) +{ + if (prepdepth >= MAX_PREPDEPTH) + error (EXIT_FAILURE, 0, gettext ("%d: conditionals nested too deep"), + yylineno); + + prepstate[prepdepth++] = state; +} + + +static int +pop_state (void) +{ + if (prepdepth == 0) + error (0, 0, gettext ("%d: unexpected #endif"), yylineno); + else + --prepdepth; + + return prepdepth == 0 ? INITIAL : IGNORE; +} + + +static int +handle_ifdef (void) +{ + char idbuf[50]; + char *id = idbuf; + size_t idlen = 0; + size_t idmax = sizeof (idbuf); + bool ignore_ws = true; + bool defined = false; + int result; + + while (1) + { + int c = input (); + + if (isspace (c) && ignore_ws) + continue; + + if (c != '_' && (c < 'a' || c > 'z') && (c < 'A' || c > 'Z') + && (idlen == 0 || c < '0' || c > '9')) + { + unput (c); + break; + } + + if (idlen == idmax) + { + char *newp = (char *) alloca (idmax *= 2); + id = memcpy (newp, id, idlen); + } + + id[idlen++] = c; + ignore_ws = false; + } + + /* XXX Compare in a better way. */ + if (idlen == 6 && strncmp (id, "SHARED", 6) == 0) + defined = ld_state.file_type == dso_file_type; + + if (defined) + result = INITIAL; + else + { + push_state (skip_if); + result = IGNORE; + } + + return result; +} + + +static void +invalid_char (int ch) +{ + error (0, 0, (isascii (ch) + ? gettext ("invalid character '%c' at line %d; ignored") + : gettext ("invalid character '\\%o' at line %d; ignored")), + ch, yylineno); +} + + +// Local Variables: +// mode: C +// End: diff --git a/src/ldscript.y b/src/ldscript.y new file mode 100644 index 0000000..23741b7 --- /dev/null +++ b/src/ldscript.y @@ -0,0 +1,795 @@ +%{ +/* Parser for linker scripts. + Copyright (C) 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +/* The error handler. */ +static void yyerror (const char *s); + +/* Some helper functions we need to construct the data structures + describing information from the file. */ +static struct expression *new_expr (int tag); +static struct input_section_name *new_input_section_name (const char *name, + bool sort_flag); +static struct input_rule *new_input_rule (int tag); +static struct output_rule *new_output_rule (int tag); +static struct assignment *new_assignment (const char *variable, + struct expression *expression, + bool provide_flag); +static void new_segment (int mode, struct output_rule *output_rule); +static struct filename_list *new_filename_listelem (const char *string); +static void add_inputfiles (struct filename_list *fnames); +static struct id_list *new_id_listelem (const char *str); + static struct filename_list *mark_as_needed (struct filename_list *listp); +static struct version *new_version (struct id_list *local, + struct id_list *global); +static struct version *merge_versions (struct version *one, + struct version *two); +static void add_versions (struct version *versions); + +extern int yylex (void); +%} + +%union { + uintmax_t num; + enum expression_tag op; + char *str; + struct expression *expr; + struct input_section_name *sectionname; + struct filemask_section_name *filemask_section_name; + struct input_rule *input_rule; + struct output_rule *output_rule; + struct assignment *assignment; + struct filename_list *filename_list; + struct version *version; + struct id_list *id_list; +} + +%token kADD_OP +%token kALIGN +%token kAS_NEEDED +%token kENTRY +%token kEXCLUDE_FILE +%token kFILENAME +%token kGLOBAL +%token kGROUP +%token kID +%token kINPUT +%token kINTERP +%token kKEEP +%token kLOCAL +%token kMODE +%token kMUL_OP +%token kNUM +%token kOUTPUT_FORMAT +%token kPAGESIZE +%token kPROVIDE +%token kSEARCH_DIR +%token kSEGMENT +%token kSIZEOF_HEADERS +%token kSORT +%token kVERSION +%token kVERSION_SCRIPT + +%left '|' +%left '&' +%left ADD_OP +%left MUL_OP '*' + +%type kADD_OP +%type kMUL_OP +%type filename_id +%type filename_id_star +%type exclude_opt +%type expr +%type sort_opt_name +%type sectionname +%type inputsection +%type inputsections +%type outputsection +%type outputsections +%type assignment +%type filename_id_list +%type versionlist +%type version +%type version_stmt_list +%type version_stmt +%type filename_id_star_list + +%expect 16 + +%% + +script_or_version: + file + | kVERSION_SCRIPT versionlist + { add_versions ($2); } + ; + +file: file content + | content + ; + +content: kENTRY '(' kID ')' ';' + { + if (likely (ld_state.entry == NULL)) + ld_state.entry = $3; + } + | kSEARCH_DIR '(' filename_id ')' ';' + { + ld_new_searchdir ($3); + } + | kPAGESIZE '(' kNUM ')' ';' + { + if (likely (ld_state.pagesize == 0)) + ld_state.pagesize = $3; + } + | kINTERP '(' filename_id ')' ';' + { + if (likely (ld_state.interp == NULL)) + ld_state.interp = $3; + } + | kSEGMENT kMODE '{' outputsections '}' + { + new_segment ($2, $4); + } + | kSEGMENT error '{' outputsections '}' + { + fputs_unlocked (gettext ("mode for segment invalid\n"), + stderr); + new_segment (0, $4); + } + | kGROUP '(' filename_id_list ')' + { + /* First little optimization. If there is only one + file in the group don't do anything. */ + if ($3 != $3->next) + { + $3->next->group_start = 1; + $3->group_end = 1; + } + add_inputfiles ($3); + } + | kINPUT '(' filename_id_list ')' + { add_inputfiles ($3); } + | kAS_NEEDED '(' filename_id_list ')' + { add_inputfiles (mark_as_needed ($3)); } + | kVERSION '{' versionlist '}' + { add_versions ($3); } + | kOUTPUT_FORMAT '(' filename_id ')' + { /* XXX TODO */ } + ; + +outputsections: outputsections outputsection + { + $2->next = $1->next; + $$ = $1->next = $2; + } + | outputsection + { $$ = $1; } + ; + +outputsection: assignment ';' + { + $$ = new_output_rule (output_assignment); + $$->val.assignment = $1; + } + | kID '{' inputsections '}' + { + $$ = new_output_rule (output_section); + $$->val.section.name = $1; + $$->val.section.input = $3->next; + if (ld_state.strip == strip_debug + && ebl_debugscn_p (ld_state.ebl, $1)) + $$->val.section.ignored = true; + else + $$->val.section.ignored = false; + $3->next = NULL; + } + | kID ';' + { + /* This is a short cut for "ID { *(ID) }". */ + $$ = new_output_rule (output_section); + $$->val.section.name = $1; + $$->val.section.input = new_input_rule (input_section); + $$->val.section.input->next = NULL; + $$->val.section.input->val.section = + (struct filemask_section_name *) + obstack_alloc (&ld_state.smem, + sizeof (struct filemask_section_name)); + $$->val.section.input->val.section->filemask = NULL; + $$->val.section.input->val.section->excludemask = NULL; + $$->val.section.input->val.section->section_name = + new_input_section_name ($1, false); + $$->val.section.input->val.section->keep_flag = false; + if (ld_state.strip == strip_debug + && ebl_debugscn_p (ld_state.ebl, $1)) + $$->val.section.ignored = true; + else + $$->val.section.ignored = false; + } + ; + +assignment: kID '=' expr + { $$ = new_assignment ($1, $3, false); } + | kPROVIDE '(' kID '=' expr ')' + { $$ = new_assignment ($3, $5, true); } + ; + +inputsections: inputsections inputsection + { + $2->next = $1->next; + $$ = $1->next = $2; + } + | inputsection + { $$ = $1; } + ; + +inputsection: sectionname + { + $$ = new_input_rule (input_section); + $$->val.section = $1; + } + | kKEEP '(' sectionname ')' + { + $3->keep_flag = true; + + $$ = new_input_rule (input_section); + $$->val.section = $3; + } + | assignment ';' + { + $$ = new_input_rule (input_assignment); + $$->val.assignment = $1; + } + ; + +sectionname: filename_id_star '(' exclude_opt sort_opt_name ')' + { + $$ = (struct filemask_section_name *) + obstack_alloc (&ld_state.smem, sizeof (*$$)); + $$->filemask = $1; + $$->excludemask = $3; + $$->section_name = $4; + $$->keep_flag = false; + } + ; + +sort_opt_name: kID + { $$ = new_input_section_name ($1, false); } + | kSORT '(' kID ')' + { $$ = new_input_section_name ($3, true); } + ; + +exclude_opt: kEXCLUDE_FILE '(' filename_id ')' + { $$ = $3; } + | + { $$ = NULL; } + ; + +expr: kALIGN '(' expr ')' + { + $$ = new_expr (exp_align); + $$->val.child = $3; + } + | '(' expr ')' + { $$ = $2; } + | expr '*' expr + { + $$ = new_expr (exp_mult); + $$->val.binary.left = $1; + $$->val.binary.right = $3; + } + | expr kMUL_OP expr + { + $$ = new_expr ($2); + $$->val.binary.left = $1; + $$->val.binary.right = $3; + } + | expr kADD_OP expr + { + $$ = new_expr ($2); + $$->val.binary.left = $1; + $$->val.binary.right = $3; + } + | expr '&' expr + { + $$ = new_expr (exp_and); + $$->val.binary.left = $1; + $$->val.binary.right = $3; + } + | expr '|' expr + { + $$ = new_expr (exp_or); + $$->val.binary.left = $1; + $$->val.binary.right = $3; + } + | kNUM + { + $$ = new_expr (exp_num); + $$->val.num = $1; + } + | kID + { + $$ = new_expr (exp_id); + $$->val.str = $1; + } + | kSIZEOF_HEADERS + { $$ = new_expr (exp_sizeof_headers); } + | kPAGESIZE + { $$ = new_expr (exp_pagesize); } + ; + +filename_id_list: kGROUP '(' filename_id_list ')' + { + /* First little optimization. If there is only one + file in the group don't do anything. */ + if ($3 != $3->next) + { + $3->next->group_start = 1; + $3->group_end = 1; + } + $$ = $3; + } + | kAS_NEEDED '(' filename_id_list ')' + { $$ = mark_as_needed ($3); } + | filename_id_list comma_opt filename_id + { + struct filename_list *newp = new_filename_listelem ($3); + newp->next = $1->next; + $$ = $1->next = newp; + } + | filename_id + { $$ = new_filename_listelem ($1); } + ; + +comma_opt: ',' + | + ; + +versionlist: versionlist version + { + $2->next = $1->next; + $$ = $1->next = $2; + } + | version + { $$ = $1; } + ; + +version: '{' version_stmt_list '}' ';' + { + $2->versionname = ""; + $2->parentname = NULL; + $$ = $2; + } + | filename_id '{' version_stmt_list '}' ';' + { + $3->versionname = $1; + $3->parentname = NULL; + $$ = $3; + } + | filename_id '{' version_stmt_list '}' filename_id ';' + { + $3->versionname = $1; + $3->parentname = $5; + $$ = $3; + } + ; + +version_stmt_list: + version_stmt_list version_stmt + { $$ = merge_versions ($1, $2); } + | version_stmt + { $$ = $1; } + ; + +version_stmt: kGLOBAL filename_id_star_list + { $$ = new_version (NULL, $2); } + | kLOCAL filename_id_star_list + { $$ = new_version ($2, NULL); } + ; + +filename_id_star_list: + filename_id_star_list filename_id_star ';' + { + struct id_list *newp = new_id_listelem ($2); + newp->next = $1->next; + $$ = $1->next = newp; + } + | filename_id_star ';' + { $$ = new_id_listelem ($1); } + ; + +filename_id: kFILENAME + { $$ = $1; } + | kID + { $$ = $1; } + ; + +filename_id_star: filename_id + { $$ = $1; } + | '*' + { $$ = NULL; } + ; + +%% + +static void +yyerror (const char *s) +{ + error (0, 0, (ld_scan_version_script + ? gettext ("while reading version script '%s': %s at line %d") + : gettext ("while reading linker script '%s': %s at line %d")), + ldin_fname, gettext (s), ldlineno); +} + + +static struct expression * +new_expr (int tag) +{ + struct expression *newp = (struct expression *) + obstack_alloc (&ld_state.smem, sizeof (*newp)); + + newp->tag = tag; + return newp; +} + + +static struct input_section_name * +new_input_section_name (const char *name, bool sort_flag) +{ + struct input_section_name *newp = (struct input_section_name *) + obstack_alloc (&ld_state.smem, sizeof (*newp)); + + newp->name = name; + newp->sort_flag = sort_flag; + return newp; +} + + +static struct input_rule * +new_input_rule (int tag) +{ + struct input_rule *newp = (struct input_rule *) + obstack_alloc (&ld_state.smem, sizeof (*newp)); + + newp->tag = tag; + newp->next = newp; + return newp; +} + + +static struct output_rule * +new_output_rule (int tag) +{ + struct output_rule *newp = (struct output_rule *) + memset (obstack_alloc (&ld_state.smem, sizeof (*newp)), + '\0', sizeof (*newp)); + + newp->tag = tag; + newp->next = newp; + return newp; +} + + +static struct assignment * +new_assignment (const char *variable, struct expression *expression, + bool provide_flag) +{ + struct assignment *newp = (struct assignment *) + obstack_alloc (&ld_state.smem, sizeof (*newp)); + + newp->variable = variable; + newp->expression = expression; + newp->sym = NULL; + newp->provide_flag = provide_flag; + + /* Insert the symbol into a hash table. We will later have to matc*/ + return newp; +} + + +static void +new_segment (int mode, struct output_rule *output_rule) +{ + struct output_segment *newp; + + newp + = (struct output_segment *) obstack_alloc (&ld_state.smem, sizeof (*newp)); + newp->mode = mode; + newp->next = newp; + + newp->output_rules = output_rule->next; + output_rule->next = NULL; + + /* Enqueue the output segment description. */ + if (ld_state.output_segments == NULL) + ld_state.output_segments = newp; + else + { + newp->next = ld_state.output_segments->next; + ld_state.output_segments = ld_state.output_segments->next = newp; + } + + /* If the output file should be stripped of all symbol set the flag + in the structures of all output sections. */ + if (mode == 0 && ld_state.strip == strip_all) + { + struct output_rule *runp; + + for (runp = newp->output_rules; runp != NULL; runp = runp->next) + if (runp->tag == output_section) + runp->val.section.ignored = true; + } +} + + +static struct filename_list * +new_filename_listelem (const char *string) +{ + struct filename_list *newp; + + /* We use calloc and not the obstack since this object can be freed soon. */ + newp = (struct filename_list *) xcalloc (1, sizeof (*newp)); + newp->name = string; + newp->next = newp; + return newp; +} + + +static struct filename_list * +mark_as_needed (struct filename_list *listp) +{ + struct filename_list *runp = listp; + while (runp != NULL) + { + runp->as_needed = true; + runp = runp->next; + } + + return listp; +} + + +static void +add_inputfiles (struct filename_list *fnames) +{ + assert (fnames != NULL); + + if (ld_state.srcfiles == NULL) + ld_state.srcfiles = fnames; + else + { + struct filename_list *first = ld_state.srcfiles->next; + + ld_state.srcfiles->next = fnames->next; + fnames->next = first; + ld_state.srcfiles->next = fnames; + } +} + + +static _Bool +special_char_p (const char *str) +{ + while (*str != '\0') + { + if (__builtin_expect (*str == '*', 0) + || __builtin_expect (*str == '?', 0) + || __builtin_expect (*str == '[', 0)) + return true; + + ++str; + } + + return false; +} + + +static struct id_list * +new_id_listelem (const char *str) +{ + struct id_list *newp; + + newp = (struct id_list *) obstack_alloc (&ld_state.smem, sizeof (*newp)); + if (str == NULL) + newp->u.id_type = id_all; + else if (__builtin_expect (special_char_p (str), false)) + newp->u.id_type = id_wild; + else + newp->u.id_type = id_str; + newp->id = str; + newp->next = newp; + + return newp; +} + + +static struct version * +new_version (struct id_list *local, struct id_list *global) +{ + struct version *newp; + + newp = (struct version *) obstack_alloc (&ld_state.smem, sizeof (*newp)); + newp->next = newp; + newp->local_names = local; + newp->global_names = global; + newp->versionname = NULL; + newp->parentname = NULL; + + return newp; +} + + +static struct version * +merge_versions (struct version *one, struct version *two) +{ + assert (two->local_names == NULL || two->global_names == NULL); + + if (two->local_names != NULL) + { + if (one->local_names == NULL) + one->local_names = two->local_names; + else + { + two->local_names->next = one->local_names->next; + one->local_names = one->local_names->next = two->local_names; + } + } + else + { + if (one->global_names == NULL) + one->global_names = two->global_names; + else + { + two->global_names->next = one->global_names->next; + one->global_names = one->global_names->next = two->global_names; + } + } + + return one; +} + + +static void +add_id_list (const char *versionname, struct id_list *runp, _Bool local) +{ + struct id_list *lastp = runp; + + if (runp == NULL) + /* Nothing to do. */ + return; + + /* Convert into a simple single-linked list. */ + runp = runp->next; + assert (runp != NULL); + lastp->next = NULL; + + do + if (runp->u.id_type == id_str) + { + struct id_list *curp; + struct id_list *defp; + unsigned long int hval = elf_hash (runp->id); + + curp = runp; + runp = runp->next; + + defp = ld_version_str_tab_find (&ld_state.version_str_tab, hval, curp); + if (defp != NULL) + { + /* There is already a version definition for this symbol. */ + while (strcmp (defp->u.s.versionname, versionname) != 0) + { + if (defp->next == NULL) + { + /* No version like this so far. */ + defp->next = curp; + curp->u.s.local = local; + curp->u.s.versionname = versionname; + curp->next = NULL; + defp = NULL; + break; + } + + defp = defp->next; + } + + if (defp != NULL && defp->u.s.local != local) + error (EXIT_FAILURE, 0, versionname[0] == '\0' + ? gettext ("\ +symbol '%s' in declared both local and global for unnamed version") + : gettext ("\ +symbol '%s' in declared both local and global for version '%s'"), + runp->id, versionname); + } + else + { + /* This is the first version definition for this symbol. */ + ld_version_str_tab_insert (&ld_state.version_str_tab, hval, curp); + + curp->u.s.local = local; + curp->u.s.versionname = versionname; + curp->next = NULL; + } + } + else if (runp->u.id_type == id_all) + { + if (local) + { + if (ld_state.default_bind_global) + error (EXIT_FAILURE, 0, + gettext ("default visibility set as local and global")); + ld_state.default_bind_local = true; + } + else + { + if (ld_state.default_bind_local) + error (EXIT_FAILURE, 0, + gettext ("default visibility set as local and global")); + ld_state.default_bind_global = true; + } + + runp = runp->next; + } + else + { + assert (runp->u.id_type == id_wild); + /* XXX TBI */ + abort (); + } + while (runp != NULL); +} + + +static void +add_versions (struct version *versions) +{ + struct version *lastp = versions; + + if (versions == NULL) + return; + + /* Convert into a simple single-linked list. */ + versions = versions->next; + assert (versions != NULL); + lastp->next = NULL; + + do + { + struct version *oldp; + + add_id_list (versions->versionname, versions->local_names, true); + add_id_list (versions->versionname, versions->global_names, false); + + oldp = versions; + versions = versions->next; + } + while (versions != NULL); +} diff --git a/src/libld_elf_i386.map b/src/libld_elf_i386.map new file mode 100644 index 0000000..703af6d --- /dev/null +++ b/src/libld_elf_i386.map @@ -0,0 +1,7 @@ +ELFUTILS_1.0 { + global: + elf_i386_ld_init; + + local: + *; +}; diff --git a/src/nm.c b/src/nm.c new file mode 100644 index 0000000..b1e71a3 --- /dev/null +++ b/src/nm.c @@ -0,0 +1,1282 @@ +/* Print symbol information from ELF file in human-readable form. + Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include "../libebl/libeblP.h" + + +/* Name and version of program. */ +static void print_version (FILE *stream, struct argp_state *state); +void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; + +/* Bug report address. */ +const char *argp_program_bug_address = PACKAGE_BUGREPORT; + + +/* Values for the parameters which have no short form. */ +#define OPT_DEFINED 0x100 +#define OPT_MARK_WEAK 0x101 + +/* Definitions of arguments for argp functions. */ +static const struct argp_option options[] = +{ + { NULL, 0, NULL, 0, N_("Output selection:"), 0 }, + { "debug-syms", 'a', NULL, 0, N_("Display debugger-only symbols"), 0 }, + { "defined-only", OPT_DEFINED, NULL, 0, N_("Display only defined symbols"), + 0 }, + { "dynamic", 'D', NULL, 0, + N_("Display dynamic symbols instead of normal symbols"), 0 }, + { "extern-only", 'g', NULL, 0, N_("Display only external symbols"), 0 }, + { "undefined-only", 'u', NULL, 0, N_("Display only undefined symbols"), 0 }, + { "print-armap", 's', NULL, 0, + N_("Include index for symbols from archive members"), 0 }, + + { NULL, 0, NULL, 0, N_("Output format:"), 0 }, + { "print-file-name", 'A', NULL, 0, + N_("Print name of the input file before every symbol"), 0 }, + { NULL, 'o', NULL, OPTION_HIDDEN, "Same as -A", 0 }, + { "format", 'f', "FORMAT", 0, + N_("Use the output format FORMAT. FORMAT can be `bsd', `sysv' or `posix'. The default is `sysv'"), + 0 }, + { NULL, 'B', NULL, 0, N_("Same as --format=bsd"), 0 }, + { "portability", 'P', NULL, 0, N_("Same as --format=posix"), 0 }, + { "radix", 't', "RADIX", 0, N_("Use RADIX for printing symbol values"), 0 }, + { "mark-weak", OPT_MARK_WEAK, NULL, 0, N_("Mark weak symbols"), 0 }, + { "print-size", 'S', NULL, 0, N_("Print size of defined symbols"), 0 }, + + { NULL, 0, NULL, 0, N_("Output options:"), 0 }, + { "numeric-sort", 'n', NULL, 0, N_("Sort symbols numerically by address"), + 0 }, + { "no-sort", 'p', NULL, 0, N_("Do not sort the symbols"), 0 }, + { "reverse-sort", 'r', NULL, 0, N_("Reverse the sense of the sort"), 0 }, + { NULL, 0, NULL, 0, N_("Miscellaneous:"), 0 }, + { NULL, 0, NULL, 0, NULL, 0 } +}; + +/* Short description of program. */ +static const char doc[] = N_("List symbols from FILEs (a.out by default)."); + +/* Strings for arguments in help texts. */ +static const char args_doc[] = N_("[FILE...]"); + +/* Prototype for option handler. */ +static error_t parse_opt (int key, char *arg, struct argp_state *state); + +/* Data structure to communicate with argp functions. */ +static struct argp argp = +{ + options, parse_opt, args_doc, doc, NULL, NULL, NULL +}; + + +/* Print symbols in file named FNAME. */ +static int process_file (const char *fname, bool more_than_one); + +/* Handle content of archive. */ +static int handle_ar (int fd, Elf *elf, const char *prefix, const char *fname, + const char *suffix); + +/* Handle ELF file. */ +static int handle_elf (Elf *elf, const char *prefix, const char *fname, + const char *suffix); + + +#define INTERNAL_ERROR(fname) \ + error (EXIT_FAILURE, 0, gettext ("%s: INTERNAL ERROR %d (%s-%s): %s"), \ + fname, __LINE__, VERSION, __DATE__, elf_errmsg (-1)) + + +/* Internal representation of symbols. */ +typedef struct GElf_SymX +{ + GElf_Sym sym; + Elf32_Word xndx; + char *where; +} GElf_SymX; + + +/* User-selectable options. */ + +/* The selected output format. */ +static enum +{ + format_sysv = 0, + format_bsd, + format_posix +} format; + +/* Print defined, undefined, or both? */ +static bool hide_undefined; +static bool hide_defined; + +/* Print local symbols also? */ +static bool hide_local; + +/* Nonzero if full filename should precede every symbol. */ +static bool print_file_name; + +/* If true print size of defined symbols in BSD format. */ +static bool print_size; + +/* If true print archive index. */ +static bool print_armap; + +/* If true reverse sorting. */ +static bool reverse_sort; + +/* Type of the section we are printing. */ +static GElf_Word symsec_type = SHT_SYMTAB; + +/* Sorting selection. */ +static enum +{ + sort_name = 0, + sort_numeric, + sort_nosort +} sort; + +/* Radix for printed numbers. */ +static enum +{ + radix_hex = 0, + radix_decimal, + radix_octal +} radix; + +/* If nonzero weak symbols are distinguished from global symbols by adding + a `*' after the identifying letter for the symbol class and type. */ +static bool mark_weak; + + +int +main (int argc, char *argv[]) +{ + int remaining; + int result = 0; + + /* Make memory leak detection possible. */ + mtrace (); + + /* We use no threads here which can interfere with handling a stream. */ + (void) __fsetlocking (stdin, FSETLOCKING_BYCALLER); + (void) __fsetlocking (stdout, FSETLOCKING_BYCALLER); + (void) __fsetlocking (stderr, FSETLOCKING_BYCALLER); + + /* Set locale. */ + (void) setlocale (LC_ALL, ""); + + /* Make sure the message catalog can be found. */ + (void) bindtextdomain (PACKAGE, LOCALEDIR); + + /* Initialize the message catalog. */ + (void) textdomain (PACKAGE); + + /* Parse and process arguments. */ + (void) argp_parse (&argp, argc, argv, 0, &remaining, NULL); + + /* Tell the library which version we are expecting. */ + (void) elf_version (EV_CURRENT); + + if (remaining == argc) + /* The user didn't specify a name so we use a.out. */ + result = process_file ("a.out", false); + else + { + /* Process all the remaining files. */ + const bool more_than_one = remaining + 1 < argc; + + do + result |= process_file (argv[remaining], more_than_one); + while (++remaining < argc); + } + + return result; +} + + +/* Print the version information. */ +static void +print_version (FILE *stream, struct argp_state *state __attribute__ ((unused))) +{ + fprintf (stream, "nm (%s) %s\n", PACKAGE_NAME, VERSION); + fprintf (stream, gettext ("\ +Copyright (C) %s Red Hat, Inc.\n\ +This is free software; see the source for copying conditions. There is NO\n\ +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ +"), "2005"); + fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); +} + + +/* Handle program arguments. */ +static error_t +parse_opt (int key, char *arg, + struct argp_state *state __attribute__ ((unused))) +{ + switch (key) + { + case 'a': + /* XXX */ + break; + + case 'f': + if (strcmp (arg, "bsd") == 0) + format = format_bsd; + else if (strcmp (arg, "posix") == 0) + format = format_posix; + else + /* Be bug compatible. The BFD implementation also defaulted to + using the SysV format if nothing else matches. */ + format = format_sysv; + break; + + case 'g': + hide_local = true; + break; + + case 'n': + sort = sort_numeric; + break; + + case 'p': + sort = sort_nosort; + break; + + case 't': + if (strcmp (arg, "10") == 0 || strcmp (arg, "d") == 0) + radix = radix_decimal; + else if (strcmp (arg, "8") == 0 || strcmp (arg, "o") == 0) + radix = radix_octal; + else + radix = radix_hex; + break; + + case 'u': + hide_undefined = false; + hide_defined = true; + break; + + case 'A': + case 'o': + print_file_name = true; + break; + + case 'B': + format = format_bsd; + break; + + case 'D': + symsec_type = SHT_DYNSYM; + break; + + case 'P': + format = format_posix; + break; + + case OPT_DEFINED: + hide_undefined = true; + hide_defined = false; + break; + + case OPT_MARK_WEAK: + mark_weak = true; + break; + + case 'S': + print_size = true; + break; + + case 's': + print_armap = true; + break; + + case 'r': + reverse_sort = true; + break; + + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + + +/* Open the file and determine the type. */ +static int +process_file (const char *fname, bool more_than_one) +{ + /* Open the file. */ + int fd = open (fname, O_RDONLY); + if (fd == -1) + { + error (0, errno, gettext ("cannot open '%s'"), fname); + return 1; + } + + /* Now get the ELF descriptor. */ + Elf *elf = elf_begin (fd, ELF_C_READ_MMAP, NULL); + if (elf != NULL) + { + if (elf_kind (elf) == ELF_K_ELF) + { + int result = handle_elf (elf, more_than_one ? "" : NULL, + fname, NULL); + + if (elf_end (elf) != 0) + INTERNAL_ERROR (fname); + + if (close (fd) != 0) + error (EXIT_FAILURE, errno, gettext ("while close '%s'"), fname); + + return result; + } + else if (elf_kind (elf) == ELF_K_AR) + { + int result = handle_ar (fd, elf, NULL, fname, NULL); + + if (elf_end (elf) != 0) + INTERNAL_ERROR (fname); + + if (close (fd) != 0) + error (EXIT_FAILURE, errno, gettext ("while close '%s'"), fname); + + return result; + } + + /* We cannot handle this type. Close the descriptor anyway. */ + if (elf_end (elf) != 0) + INTERNAL_ERROR (fname); + } + + error (0, 0, gettext ("%s: File format not recognized"), fname); + + return 1; +} + + +static int +handle_ar (int fd, Elf *elf, const char *prefix, const char *fname, + const char *suffix) +{ + size_t fname_len = strlen (fname) + 1; + size_t prefix_len = prefix != NULL ? strlen (prefix) : 0; + char new_prefix[prefix_len + fname_len + 2]; + size_t suffix_len = suffix != NULL ? strlen (suffix) : 0; + char new_suffix[suffix_len + 2]; + Elf *subelf; + Elf_Cmd cmd = ELF_C_READ_MMAP; + int result = 0; + + char *cp = new_prefix; + if (prefix != NULL) + cp = stpcpy (cp, prefix); + cp = stpcpy (cp, fname); + stpcpy (cp, "["); + + cp = new_suffix; + if (suffix != NULL) + cp = stpcpy (cp, suffix); + stpcpy (cp, "]"); + + /* First print the archive index if this is wanted. */ + if (print_armap) + { + Elf_Arsym *arsym = elf_getarsym (elf, NULL); + + if (arsym != NULL) + { + Elf_Arhdr *arhdr = NULL; + size_t arhdr_off = 0; /* Note: 0 is no valid offset. */ + + puts (gettext("\nArchive index:")); + + while (arsym->as_off != 0) + { + if (arhdr_off != arsym->as_off + && (elf_rand (elf, arsym->as_off) != arsym->as_off + || (subelf = elf_begin (fd, cmd, elf)) == NULL + || (arhdr = elf_getarhdr (subelf)) == NULL)) + { + error (0, 0, gettext ("invalid offset %zu for symbol %s"), + arsym->as_off, arsym->as_name); + continue; + } + + printf (gettext ("%s in %s\n"), arsym->as_name, arhdr->ar_name); + + ++arsym; + } + + if (elf_rand (elf, SARMAG) != SARMAG) + { + error (0, 0, + gettext ("cannot reset archive offset to beginning")); + return 1; + } + } + } + + /* Process all the files contained in the archive. */ + while ((subelf = elf_begin (fd, cmd, elf)) != NULL) + { + /* The the header for this element. */ + Elf_Arhdr *arhdr = elf_getarhdr (subelf); + + /* Skip over the index entries. */ + if (strcmp (arhdr->ar_name, "/") != 0 + && strcmp (arhdr->ar_name, "//") != 0) + { + if (elf_kind (subelf) == ELF_K_ELF) + result |= handle_elf (subelf, new_prefix, arhdr->ar_name, + new_suffix); + else if (elf_kind (subelf) == ELF_K_AR) + result |= handle_ar (fd, subelf, new_prefix, arhdr->ar_name, + new_suffix); + else + { + error (0, 0, gettext ("%s%s%s: file format not recognized"), + new_prefix, arhdr->ar_name, new_suffix); + result = 1; + } + } + + /* Get next archive element. */ + cmd = elf_next (subelf); + if (elf_end (subelf) != 0) + INTERNAL_ERROR (fname); + } + + return result; +} + + +/* Mapping of radix and binary class to length. */ +static const int length_map[2][3] = +{ + [ELFCLASS32 - 1] = + { + [radix_hex] = 8, + [radix_decimal] = 10, + [radix_octal] = 11 + }, + [ELFCLASS64 - 1] = + { + [radix_hex] = 16, + [radix_decimal] = 20, + [radix_octal] = 22 + } +}; + + +struct global_name +{ + Dwarf_Global global; + const char *name; +}; + + +static int +global_compare (const void *p1, const void *p2) +{ + const Dwarf_Global *g1 = (const Dwarf_Global *) p1; + const Dwarf_Global *g2 = (const Dwarf_Global *) p2; + + return strcmp (g1->name, g2->name); +} + + +static void *global_root; + + +static int +get_global (Dwarf *dbg __attribute__ ((unused)), Dwarf_Global *global, + void *arg __attribute__ ((unused))) +{ + tsearch (memcpy (xmalloc (sizeof (Dwarf_Global)), global, + sizeof (Dwarf_Global)), + &global_root, global_compare); + + return DWARF_CB_OK; +} + + +struct local_name +{ + const char *name; + const char *file; + Dwarf_Word lineno; + Dwarf_Addr lowpc; + Dwarf_Addr highpc; +}; + + +static int +local_compare (const void *p1, const void *p2) +{ + struct local_name *g1 = (struct local_name *) p1; + struct local_name *g2 = (struct local_name *) p2; + int result; + + result = strcmp (g1->name, g2->name); + if (result == 0) + { + if (g1->lowpc <= g2->lowpc && g1->highpc >= g2->highpc) + { + /* g2 is contained in g1. Update the data. */ + g2->lowpc = g1->lowpc; + g2->highpc = g1->highpc; + result = 0; + } + else if (g2->lowpc <= g1->lowpc && g2->highpc >= g1->highpc) + { + /* g1 is contained in g2. Update the data. */ + g1->lowpc = g2->lowpc; + g1->highpc = g2->highpc; + result = 0; + } + else + result = g1->lowpc < g2->lowpc ? -1 : 1; + } + + return result; +} + + +static int +get_var_range (Dwarf_Die *die, Dwarf_Word *lowpc, Dwarf_Word *highpc) +{ + Dwarf_Attribute locattr_mem; + Dwarf_Attribute *locattr = dwarf_attr (die, DW_AT_location, &locattr_mem); + if (locattr == NULL) + return 1; + + Dwarf_Loc *loc; + size_t nloc; + if (dwarf_getloclist (locattr, &loc, &nloc) != 0) + return 1; + + /* Interpret the location expressions. */ + // XXX For now just the simple one: + if (nloc == 1 && loc[0].atom == DW_OP_addr) + { + *lowpc = *highpc = loc[0].number; + return 0; + } + + return 1; +} + + + +static void *local_root; + + +static void +get_local_names (Dwarf *dbg) +{ + Dwarf_Off offset = 0; + Dwarf_Off old_offset; + size_t hsize; + + while (dwarf_nextcu (dbg, old_offset = offset, &offset, &hsize, NULL, NULL, + NULL) == 0) + { + Dwarf_Die cudie_mem; + Dwarf_Die *cudie = dwarf_offdie (dbg, old_offset + hsize, &cudie_mem); + + /* If we cannot get the CU DIE there is no need to go on with + this CU. */ + if (cudie == NULL) + continue; + /* This better be a CU DIE. */ + if (dwarf_tag (cudie) != DW_TAG_compile_unit) + continue; + + /* Get the line information. */ + Dwarf_Files *files; + size_t nfiles; + if (dwarf_getsrcfiles (cudie, &files, &nfiles) != 0) + continue; + + Dwarf_Die die_mem; + Dwarf_Die *die = &die_mem; + if (dwarf_child (cudie, die) == 0) + /* Iterate over all immediate children of the CU DIE. */ + do + { + int tag = dwarf_tag (die); + if (tag != DW_TAG_subprogram && tag != DW_TAG_variable) + continue; + + /* We are interested in five attributes: name, decl_file, + decl_line, low_pc, and high_pc. */ + Dwarf_Attribute attr_mem; + Dwarf_Attribute *attr = dwarf_attr (die, DW_AT_name, &attr_mem); + const char *name = dwarf_formstring (attr); + if (name == NULL) + continue; + + Dwarf_Word fileidx; + attr = dwarf_attr (die, DW_AT_decl_file, &attr_mem); + if (dwarf_formudata (attr, &fileidx) != 0 || fileidx >= nfiles) + continue; + + Dwarf_Word lineno; + attr = dwarf_attr (die, DW_AT_decl_line, &attr_mem); + if (dwarf_formudata (attr, &lineno) != 0 || lineno == 0) + continue; + + Dwarf_Addr lowpc; + Dwarf_Addr highpc; + if (tag == DW_TAG_subprogram) + { + if (dwarf_lowpc (die, &lowpc) != 0 + || dwarf_highpc (die, &highpc) != 0) + continue; + } + else + { + if (get_var_range (die, &lowpc, &highpc) != 0) + continue; + } + + /* We have all the information. Create a record. */ + struct local_name *newp + = (struct local_name *) xmalloc (sizeof (*newp)); + newp->name = name; + newp->file = dwarf_filesrc (files, fileidx, NULL, NULL); + newp->lineno = lineno; + newp->lowpc = lowpc; + newp->highpc = highpc; + + /* Since we cannot deallocate individual memory we do not test + for duplicates in the tree. This should not happen anyway. */ + if (tsearch (newp, &local_root, local_compare) == NULL) + error (EXIT_FAILURE, errno, + gettext ("cannot create search tree")); + } + while (dwarf_siblingof (die, die) == 0); + } +} + + +/* Show symbols in SysV format. */ +static void +show_symbols_sysv (Ebl *ebl, GElf_Word strndx, + const char *prefix, const char *fname, const char *fullname, + GElf_SymX *syms, size_t nsyms, int longest_name, + int longest_where) +{ + size_t shnum; + if (elf_getshnum (ebl->elf, &shnum) < 0) + INTERNAL_ERROR (fullname); + + bool scnnames_malloced = shnum * sizeof (const char *) > 128 * 1024; + const char **scnnames; + if (scnnames_malloced) + scnnames = (const char **) xmalloc (sizeof (const char *) * shnum); + else + scnnames = (const char **) alloca (sizeof (const char *) * shnum); + /* Get the section header string table index. */ + size_t shstrndx; + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + /* Cache the section names. */ + Elf_Scn *scn = NULL; + size_t cnt = 1; + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + GElf_Shdr shdr_mem; + + assert (elf_ndxscn (scn) == cnt++); + + scnnames[elf_ndxscn (scn)] + = elf_strptr (ebl->elf, shstrndx, + gelf_getshdr (scn, &shdr_mem)->sh_name); + } + + int digits = length_map[gelf_getclass (ebl->elf) - 1][radix]; + + /* We always print this prolog. */ + if (prefix == NULL || 1) + printf (gettext ("\n\nSymbols from %s:\n\n"), fullname); + else + printf (gettext ("\n\nSymbols from %s[%s]:\n\n"), prefix, fname); + + /* The header line. */ + printf (gettext ("%*s%-*s %-*s Class Type %-*s %*s Section\n\n"), + print_file_name ? (int) strlen (fullname) + 1: 0, "", + longest_name, sgettext ("sysv|Name"), + /* TRANS: the "sysv|" parts makes the string unique. */ + digits, sgettext ("sysv|Value"), + /* TRANS: the "sysv|" parts makes the string unique. */ + digits, sgettext ("sysv|Size"), + /* TRANS: the "sysv|" parts makes the string unique. */ + longest_where, sgettext ("sysv|Line")); + + /* Which format string to use (different radix for numbers). */ + const char *fmtstr; + if (radix == radix_hex) + fmtstr = "%-*s|%0*" PRIx64 "|%-6s|%-8s|%*" PRIx64 "|%*s|%s\n"; + else if (radix == radix_decimal) + fmtstr = "%-*s|%*" PRId64 "|%-6s|%-8s|%*" PRId64 "|%*s|%s\n"; + else + fmtstr = "%-*s|%0*" PRIo64 "|%-6s|%-8s|%*" PRIo64 "|%*s|%s\n"; + + /* Iterate over all symbols. */ + for (cnt = 0; cnt < nsyms; ++cnt) + { + const char *symstr = elf_strptr (ebl->elf, strndx, + syms[cnt].sym.st_name); + char symbindbuf[50]; + char symtypebuf[50]; + char secnamebuf[1024]; + + /* If we have to precede the line with the file name. */ + if (print_file_name) + { + fputs_unlocked (fullname, stdout); + putchar_unlocked (':'); + } + + /* Print the actual string. */ + printf (fmtstr, + longest_name, symstr, + digits, syms[cnt].sym.st_value, + ebl_symbol_binding_name (ebl, + GELF_ST_BIND (syms[cnt].sym.st_info), + symbindbuf, sizeof (symbindbuf)), + ebl_symbol_type_name (ebl, GELF_ST_TYPE (syms[cnt].sym.st_info), + symtypebuf, sizeof (symtypebuf)), + digits, syms[cnt].sym.st_size, longest_where, syms[cnt].where, + ebl_section_name (ebl, syms[cnt].sym.st_shndx, syms[cnt].xndx, + secnamebuf, sizeof (secnamebuf), scnnames, + shnum)); + } + + if (scnnames_malloced) + free (scnnames); +} + + +static char +class_type_char (GElf_Sym *sym) +{ + int local_p = GELF_ST_BIND (sym->st_info) == STB_LOCAL; + + /* XXX Add support for architecture specific types and classes. */ + if (sym->st_shndx == SHN_ABS) + return local_p ? 'a' : 'A'; + + if (sym->st_shndx == SHN_UNDEF) + /* Undefined symbols must be global. */ + return 'U'; + + char result = "NDTSFB "[GELF_ST_TYPE (sym->st_info)]; + + return local_p ? tolower (result) : result; +} + + +static void +show_symbols_bsd (Elf *elf, GElf_Word strndx, + const char *prefix, const char *fname, const char *fullname, + GElf_SymX *syms, size_t nsyms) +{ + int digits = length_map[gelf_getclass (elf) - 1][radix]; + + if (prefix != NULL && ! print_file_name) + printf ("\n%s:\n", fname); + + static const char *const fmtstrs[] = + { + [radix_hex] = "%0*" PRIx64 " %c%s %s\n", + [radix_decimal] = "%*" PRId64 " %c%s %s\n", + [radix_octal] = "%0*" PRIo64 " %c%s %s\n" + }; + static const char *const sfmtstrs[] = + { + [radix_hex] = "%2$0*1$" PRIx64 " %7$0*6$" PRIx64 " %3$c%4$s %5$s\n", + [radix_decimal] = "%2$*1$" PRId64 " %7$*6$" PRId64 " %3$c%4$s %5$s\n", + [radix_octal] = "%2$0*1$" PRIo64 " %7$0*6$" PRIo64 " %3$c%4$s %5$s\n" + }; + + /* Iterate over all symbols. */ + for (size_t cnt = 0; cnt < nsyms; ++cnt) + { + const char *symstr = elf_strptr (elf, strndx, syms[cnt].sym.st_name); + + /* Printing entries with a zero-length name makes the output + not very well parseable. Since these entries don't carry + much information we leave them out. */ + if (symstr[0] == '\0') + continue; + + /* If we have to precede the line with the file name. */ + if (print_file_name) + { + fputs_unlocked (fullname, stdout); + putchar_unlocked (':'); + } + + if (syms[cnt].sym.st_shndx == SHN_UNDEF) + printf ("%*s U%s %s\n", + digits, "", + mark_weak + ? (GELF_ST_BIND (syms[cnt].sym.st_info) == STB_WEAK + ? "*" : " ") + : "", + elf_strptr (elf, strndx, syms[cnt].sym.st_name)); + else + printf (print_size ? sfmtstrs[radix] : fmtstrs[radix], + digits, syms[cnt].sym.st_value, + class_type_char (&syms[cnt].sym), + mark_weak + ? (GELF_ST_BIND (syms[cnt].sym.st_info) == STB_WEAK + ? "*" : " ") + : "", + elf_strptr (elf, strndx, syms[cnt].sym.st_name), + digits, (uint64_t) syms[cnt].sym.st_size); + } +} + + +static void +show_symbols_posix (Elf *elf, GElf_Word strndx, const char *prefix, + const char *fullname, GElf_SymX *syms, size_t nsyms) +{ + if (prefix != NULL && ! print_file_name) + printf ("%s:\n", fullname); + + const char *fmtstr; + if (radix == radix_hex) + fmtstr = "%s %c%s %0*" PRIx64 " %0*" PRIx64 "\n"; + else if (radix == radix_decimal) + fmtstr = "%s %c%s %*" PRId64 " %*" PRId64 "\n"; + else + fmtstr = "%s %c%s %0*" PRIo64 " %0*" PRIo64 "\n"; + + int digits = length_map[gelf_getclass (elf) - 1][radix]; + + /* Iterate over all symbols. */ + for (size_t cnt = 0; cnt < nsyms; ++cnt) + { + const char *symstr = elf_strptr (elf, strndx, syms[cnt].sym.st_name); + + /* Printing entries with a zero-length name makes the output + not very well parseable. Since these entries don't carry + much information we leave them out. */ + if (symstr[0] == '\0') + continue; + + /* If we have to precede the line with the file name. */ + if (print_file_name) + { + fputs_unlocked (fullname, stdout); + putchar_unlocked (':'); + putchar_unlocked (' '); + } + + printf (fmtstr, + symstr, + class_type_char (&syms[cnt].sym), + mark_weak + ? (GELF_ST_BIND (syms[cnt].sym.st_info) == STB_WEAK ? "*" : " ") + : "", + digits, syms[cnt].sym.st_value, + digits, syms[cnt].sym.st_size); + } +} + + +/* Maximum size of memory we allocate on the stack. */ +#define MAX_STACK_ALLOC 65536 + +static void +show_symbols (Ebl *ebl, GElf_Ehdr *ehdr, Elf_Scn *scn, Elf_Scn *xndxscn, + GElf_Shdr *shdr, const char *prefix, const char *fname, + const char *fullname) +{ + int sort_by_name (const void *p1, const void *p2) + { + GElf_SymX *s1 = (GElf_SymX *) p1; + GElf_SymX *s2 = (GElf_SymX *) p2; + int result; + + result = strcmp (elf_strptr (ebl->elf, shdr->sh_link, s1->sym.st_name), + elf_strptr (ebl->elf, shdr->sh_link, s2->sym.st_name)); + + return reverse_sort ? -result : result; + } + + int sort_by_address (const void *p1, const void *p2) + { + GElf_SymX *s1 = (GElf_SymX *) p1; + GElf_SymX *s2 = (GElf_SymX *) p2; + + int result = (s1->sym.st_value < s2->sym.st_value + ? -1 : (s1->sym.st_value == s2->sym.st_value ? 0 : 1)); + + return reverse_sort ? -result : result; + } + + /* Get the section header string table index. */ + size_t shstrndx; + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + /* The section is that large. */ + size_t size = shdr->sh_size; + /* One entry is this large. */ + size_t entsize = shdr->sh_entsize; + + /* Consistency checks. */ + if (entsize != gelf_fsize (ebl->elf, ELF_T_SYM, 1, ehdr->e_version)) + error (0, 0, + gettext ("%s: entry size in section `%s' is not what we expect"), + fullname, elf_strptr (ebl->elf, shstrndx, shdr->sh_name)); + else if (size % entsize != 0) + error (0, 0, + gettext ("%s: size of section `%s' is not multiple of entry size"), + fullname, elf_strptr (ebl->elf, shstrndx, shdr->sh_name)); + + /* Compute number of entries. Handle buggy entsize values. */ + size_t nentries = size / (entsize ?: 1); + + +#define obstack_chunk_alloc xmalloc +#define obstack_chunk_free free + struct obstack whereob; + obstack_init (&whereob); + + /* Get a DWARF debugging descriptor. It's no problem if this isn't + possible. We just won't print any line number information. */ + Dwarf *dbg = NULL; + if (format == format_sysv) + { + dbg = dwarf_begin_elf (ebl->elf, DWARF_C_READ, NULL); + if (dbg != NULL) + { + (void) dwarf_getpubnames (dbg, get_global, NULL, 0); + + get_local_names (dbg); + } + } + + /* Allocate the memory. + + XXX We can use a dirty trick here. Since GElf_Sym == Elf64_Sym we + can use the data memory instead of copying again if what we read + is a 64 bit file. */ + GElf_SymX *sym_mem; + if (nentries * sizeof (GElf_SymX) < MAX_STACK_ALLOC) + sym_mem = (GElf_SymX *) alloca (nentries * sizeof (GElf_SymX)); + else + sym_mem = (GElf_SymX *) xmalloc (nentries * sizeof (GElf_SymX)); + + /* Get the data of the section. */ + Elf_Data *data = elf_getdata (scn, NULL); + Elf_Data *xndxdata = elf_getdata (xndxscn, NULL); + if (data == NULL || (xndxscn != NULL && xndxdata == NULL)) + INTERNAL_ERROR (fullname); + + /* Iterate over all symbols. */ + int longest_name = 4; + int longest_where = 4; + size_t nentries_used = 0; + for (size_t cnt = 0; cnt < nentries; ++cnt) + { + GElf_Sym *sym = gelf_getsymshndx (data, xndxdata, cnt, + &sym_mem[nentries_used].sym, + &sym_mem[nentries_used].xndx); + if (sym == NULL) + INTERNAL_ERROR (fullname); + + /* Filter out administrative symbols without a name and those + deselected by ther user with command line options. */ + if ((hide_undefined && sym->st_shndx == SHN_UNDEF) + || (hide_defined && sym->st_shndx != SHN_UNDEF) + || (hide_local && GELF_ST_BIND (sym->st_info) == STB_LOCAL)) + continue; + + sym_mem[nentries_used].where = ""; + if (format == format_sysv) + { + const char *symstr = elf_strptr (ebl->elf, shdr->sh_link, + sym->st_name); + + longest_name = MAX ((size_t) longest_name, strlen (symstr)); + + if (sym->st_shndx != SHN_UNDEF + && GELF_ST_BIND (sym->st_info) != STB_LOCAL + && global_root != NULL) + { + Dwarf_Global fake = { .name = symstr }; + Dwarf_Global **found = tfind (&fake, &global_root, + global_compare); + if (found != NULL) + { + Dwarf_Die die_mem; + Dwarf_Die *die = dwarf_offdie (dbg, (*found)->die_offset, + &die_mem); + + Dwarf_Die cudie_mem; + Dwarf_Die *cudie = NULL; + + Dwarf_Addr lowpc; + Dwarf_Addr highpc; + if (die != NULL + && dwarf_lowpc (die, &lowpc) == 0 + && lowpc <= sym->st_value + && dwarf_highpc (die, &highpc) == 0 + && highpc > sym->st_value) + cudie = dwarf_offdie (dbg, (*found)->cu_offset, + &cudie_mem); + if (cudie != NULL) + { + Dwarf_Line *line = dwarf_getsrc_die (cudie, + sym->st_value); + if (line != NULL) + { + /* We found the line. */ + int lineno; + (void) dwarf_lineno (line, &lineno); + int n; + n = obstack_printf (&whereob, "%s:%d%c", + basename (dwarf_linesrc (line, + NULL, + NULL)), + lineno, '\0'); + sym_mem[nentries_used].where + = obstack_finish (&whereob); + + /* The return value of obstack_print included the + NUL byte, so subtract one. */ + if (--n > (int) longest_where) + longest_where = (size_t) n; + } + } + } + } + + /* Try to find the symol among the local symbols. */ + if (sym_mem[nentries_used].where[0] == '\0') + { + struct local_name fake = + { + .name = symstr, + .lowpc = sym->st_value, + .highpc = sym->st_value, + }; + struct local_name **found = tfind (&fake, &local_root, + local_compare); + if (found != NULL) + { + /* We found the line. */ + int n = obstack_printf (&whereob, "%s:%" PRIu64 "%c", + basename ((*found)->file), + (*found)->lineno, + '\0'); + sym_mem[nentries_used].where = obstack_finish (&whereob); + + /* The return value of obstack_print included the + NUL byte, so subtract one. */ + if (--n > (int) longest_where) + longest_where = (size_t) n; + } + } + } + + /* We use this entry. */ + ++nentries_used; + } + /* Now we know the exact number. */ + nentries = nentries_used; + + /* Sort the entries according to the users wishes. */ + if (sort == sort_name) + qsort (sym_mem, nentries, sizeof (GElf_SymX), sort_by_name); + else if (sort == sort_numeric) + qsort (sym_mem, nentries, sizeof (GElf_SymX), sort_by_address); + + /* Finally print according to the users selection. */ + switch (format) + { + case format_sysv: + show_symbols_sysv (ebl, shdr->sh_link, prefix, fname, + fullname, sym_mem, nentries, longest_name, + longest_where); + break; + + case format_bsd: + show_symbols_bsd (ebl->elf, shdr->sh_link, prefix, fname, fullname, + sym_mem, nentries); + break; + + case format_posix: + default: + assert (format == format_posix); + show_symbols_posix (ebl->elf, shdr->sh_link, prefix, fullname, sym_mem, + nentries); + break; + } + + /* Free all memory. */ + if (nentries * sizeof (GElf_Sym) >= MAX_STACK_ALLOC) + free (sym_mem); + + obstack_free (&whereob, NULL); + + if (dbg != NULL) + { + tdestroy (global_root, free); + global_root = NULL; + + tdestroy (local_root, free); + local_root = NULL; + + (void) dwarf_end (dbg); + } +} + + +static int +handle_elf (Elf *elf, const char *prefix, const char *fname, + const char *suffix) +{ + size_t prefix_len = prefix == NULL ? 0 : strlen (prefix); + size_t suffix_len = suffix == NULL ? 0 : strlen (suffix); + size_t fname_len = strlen (fname) + 1; + char fullname[prefix_len + 1 + fname_len + suffix_len]; + char *cp = fullname; + Elf_Scn *scn = NULL; + int any = 0; + int result = 0; + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + Ebl *ebl; + + /* Get the backend for this object file type. */ + ebl = ebl_openbackend (elf); + + /* We need the ELF header in a few places. */ + ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + INTERNAL_ERROR (fullname); + + /* If we are asked to print the dynamic symbol table and this is + executable or dynamic executable, fail. */ + if (symsec_type == SHT_DYNSYM + && ehdr->e_type != ET_EXEC && ehdr->e_type != ET_DYN) + { + /* XXX Add machine specific object file types. */ + error (0, 0, gettext ("%s%s%s%s: Invalid operation"), + prefix ?: "", prefix ? "(" : "", fname, prefix ? ")" : ""); + result = 1; + goto out; + } + + /* Create the full name of the file. */ + if (prefix != NULL) + cp = mempcpy (cp, prefix, prefix_len); + cp = mempcpy (cp, fname, fname_len); + if (suffix != NULL) + memcpy (cp - 1, suffix, suffix_len + 1); + + /* Find the symbol table. + + XXX Can there be more than one? Do we print all? Currently we do. */ + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr == NULL) + INTERNAL_ERROR (fullname); + + if (shdr->sh_type == symsec_type) + { + Elf_Scn *xndxscn = NULL; + + /* We have a symbol table. First make sure we remember this. */ + any = 1; + + /* Look for an extended section index table for this section. */ + if (symsec_type == SHT_SYMTAB) + { + size_t scnndx = elf_ndxscn (scn); + + while ((xndxscn = elf_nextscn (elf, xndxscn)) != NULL) + { + GElf_Shdr xndxshdr_mem; + GElf_Shdr *xndxshdr = gelf_getshdr (xndxscn, &xndxshdr_mem); + + if (xndxshdr == NULL) + INTERNAL_ERROR (fullname); + + if (xndxshdr->sh_type == SHT_SYMTAB_SHNDX + && xndxshdr->sh_link == scnndx) + break; + } + } + + show_symbols (ebl, ehdr, scn, xndxscn, shdr, prefix, fname, + fullname); + } + } + + if (! any) + { + error (0, 0, gettext ("%s%s%s: no symbols"), + prefix ?: "", prefix ? ":" : "", fname); + result = 1; + } + + out: + /* Close the ELF backend library descriptor. */ + ebl_closebackend (ebl); + + return result; +} diff --git a/src/none_ld.c b/src/none_ld.c new file mode 100644 index 0000000..fb0f0fb --- /dev/null +++ b/src/none_ld.c @@ -0,0 +1 @@ +/* Nothing here. This is just a testimony of automake inflexibility. */ diff --git a/src/readelf.c b/src/readelf.c new file mode 100644 index 0000000..95532fa --- /dev/null +++ b/src/readelf.c @@ -0,0 +1,4997 @@ +/* Print information from ELF file in human-readable form. + Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include "../libebl/libeblP.h" +#include "../libdw/libdwP.h" +#include "../libdw/memory-access.h" + + +/* Name and version of program. */ +static void print_version (FILE *stream, struct argp_state *state); +void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; + +/* Bug report address. */ +const char *argp_program_bug_address = PACKAGE_BUGREPORT; + +/* Definitions of arguments for argp functions. */ +static const struct argp_option options[] = +{ + { NULL, 0, NULL, 0, N_("Output selection:"), 0 }, + { "all", 'a', NULL, 0, N_("Equivalent to: -h -l"), 0 }, + { "dynamic", 'd', NULL, 0, N_("Display the dynamic segment"), 0 }, + { "file-header", 'h', NULL, 0, N_("Display the ELF file header"), 0 }, + { "histogram", 'I', NULL, 0, + N_("Display histogram of bucket list lengths"), 0 }, + { "program-headers", 'l', NULL, 0, N_("Display the program headers"), 0 }, + { "relocs", 'r', NULL, 0, N_("Display relocations"), 0 }, + { "section-headers", 'S', NULL, 0, N_("Display the sections' header"), 0 }, + { "symbols", 's', NULL, 0, N_("Display the symbol table"), 0 }, + { "version-info", 'V', NULL, 0, N_("Display versioning information"), 0 }, + { "debug-dump", 'w', "SECTION", OPTION_ARG_OPTIONAL, + N_("Display DWARF section content. SECTION can be one of abbrev, " + "aranges, frame, info, loc, line, ranges, pubnames, str, or macinfo."), + 0 }, + { "notes", 'n', NULL, 0, N_("Display the core notes"), 0 }, + { "arch-specific", 'A', NULL, 0, + N_("Display architecture specific information (if any)"), 0 }, + + { NULL, 0, NULL, 0, N_("Output control:"), 0 }, + + { NULL, 0, NULL, 0, NULL, 0 } +}; + +/* Short description of program. */ +static const char doc[] = N_("\ +Print information from ELF file in human-readable form."); + +/* Strings for arguments in help texts. */ +static const char args_doc[] = N_("FILE..."); + +/* Prototype for option handler. */ +static error_t parse_opt (int key, char *arg, struct argp_state *state); + +/* Data structure to communicate with argp functions. */ +static struct argp argp = +{ + options, parse_opt, args_doc, doc, NULL, NULL, NULL +}; + + +/* Flags set by the option controlling the output. */ + +/* True if dynamic segment should be printed. */ +static bool print_dynamic_table; + +/* True if the file header should be printed. */ +static bool print_file_header; + +/* True if the program headers should be printed. */ +static bool print_program_header; + +/* True if relocations should be printed. */ +static bool print_relocations; + +/* True if the section headers should be printed. */ +static bool print_section_header; + +/* True if the symbol table should be printed. */ +static bool print_symbol_table; + +/* True if the version information should be printed. */ +static bool print_version_info; + +/* True if section groups should be printed. */ +static bool print_section_groups; + +/* True if bucket list length histogram should be printed. */ +static bool print_histogram; + +/* True if the architecture specific data should be printed. */ +static bool print_arch; + +/* True if note section content should be printed. */ +static bool print_notes; + +/* Select printing of debugging sections. */ +static enum section_e +{ + section_abbrev = 1, /* .debug_abbrev */ + section_aranges = 2, /* .debug_aranges */ + section_frame = 4, /* .debug_frame or .eh_frame */ + section_info = 8, /* .debug_info */ + section_line = 16, /* .debug_line */ + section_loc = 32, /* .debug_loc */ + section_pubnames = 64,/* .debug_pubnames */ + section_str = 128, /* .debug_str */ + section_macinfo = 256,/* .debug_macinfo */ + section_ranges = 512, /* .debug_ranges */ + section_all = (section_abbrev | section_aranges | section_frame + | section_info | section_line | section_loc + | section_pubnames | section_str | section_macinfo + | section_ranges) +} print_debug_sections; + +/* Number of sections in the file. */ +static size_t shnum; + + +/* Declarations of local functions. */ +static void process_file (int fd, Elf *elf, const char *prefix, + const char *fname, bool only_one); +static void process_elf_file (Elf *elf, const char *prefix, const char *fname, + bool only_one); +static void print_ehdr (Ebl *ebl, GElf_Ehdr *ehdr); +static void print_shdr (Ebl *ebl, GElf_Ehdr *ehdr); +static void print_phdr (Ebl *ebl, GElf_Ehdr *ehdr); +static void print_scngrp (Ebl *ebl); +static void print_dynamic (Ebl *ebl); +static void print_relocs (Ebl *ebl); +static void handle_relocs_rel (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr); +static void handle_relocs_rela (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr); +static void print_symtab (Ebl *ebl, int type); +static void handle_symtab (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr); +static void print_verinfo (Ebl *ebl); +static void handle_verneed (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr); +static void handle_verdef (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr); +static void handle_versym (Ebl *ebl, Elf_Scn *scn, + GElf_Shdr *shdr); +static void print_debug (Ebl *ebl, GElf_Ehdr *ehdr); +static void handle_hash (Ebl *ebl); +static void handle_notes (Ebl *ebl, GElf_Ehdr *ehdr); +static void print_liblist (Ebl *ebl); + + +int +main (int argc, char *argv[]) +{ + /* Set locale. */ + setlocale (LC_ALL, ""); + + /* Initialize the message catalog. */ + textdomain (PACKAGE); + + /* Parse and process arguments. */ + int remaining; + argp_parse (&argp, argc, argv, 0, &remaining, NULL); + + /* Before we start tell the ELF library which version we are using. */ + elf_version (EV_CURRENT); + + /* Now process all the files given at the command line. */ + bool only_one = remaining + 1 == argc; + do + { + /* Open the file. */ + int fd = open (argv[remaining], O_RDONLY); + if (fd == -1) + { + error (0, errno, gettext ("cannot open input file")); + continue; + } + + /* Create an `Elf' descriptor. */ + Elf *elf = elf_begin (fd, ELF_C_READ_MMAP, NULL); + if (elf == NULL) + error (0, 0, gettext ("cannot generate Elf descriptor: %s\n"), + elf_errmsg (-1)); + else + { + process_file (fd, elf, NULL, argv[remaining], only_one); + + /* Now we can close the descriptor. */ + if (elf_end (elf) != 0) + error (0, 0, gettext ("error while closing Elf descriptor: %s"), + elf_errmsg (-1)); + } + + close (fd); + } + while (++remaining < argc); + + return error_message_count != 0; +} + + +/* Handle program arguments. */ +static error_t +parse_opt (int key, char *arg, + struct argp_state *state __attribute__ ((unused))) +{ + /* True if any of the control options is set. */ + static bool any_control_option; + + switch (key) + { + case 'a': + print_file_header = true; + print_program_header = true; + print_relocations = true; + print_section_header = true; + print_symbol_table = true; + print_version_info = true; + print_dynamic_table = true; + print_section_groups = true; + print_histogram = true; + print_arch = true; + print_notes = true; + any_control_option = true; + break; + case 'A': + print_arch = true; + any_control_option = true; + break; + case 'd': + print_dynamic_table = true; + any_control_option = true; + break; + case 'g': + print_section_groups = true; + any_control_option = true; + break; + case 'h': + print_file_header = true; + any_control_option = true; + break; + case 'I': + print_histogram = true; + any_control_option = true; + break; + case 'l': + print_program_header = true; + any_control_option = true; + break; + case 'n': + print_notes = true; + any_control_option = true; + break; + case 'r': + print_relocations = true; + any_control_option = true; + break; + case 'S': + print_section_header = true; + any_control_option = true; + break; + case 's': + print_symbol_table = true; + any_control_option = true; + break; + case 'V': + print_version_info = true; + any_control_option = true; + break; + case 'w': + if (arg == NULL) + print_debug_sections = section_all; + else if (strcmp (arg, "abbrev") == 0) + print_debug_sections |= section_abbrev; + else if (strcmp (arg, "aranges") == 0) + print_debug_sections |= section_aranges; + else if (strcmp (arg, "ranges") == 0) + print_debug_sections |= section_ranges; + else if (strcmp (arg, "frame") == 0) + print_debug_sections |= section_frame; + else if (strcmp (arg, "info") == 0) + print_debug_sections |= section_info; + else if (strcmp (arg, "loc") == 0) + print_debug_sections |= section_loc; + else if (strcmp (arg, "line") == 0) + print_debug_sections |= section_line; + else if (strcmp (arg, "pubnames") == 0) + print_debug_sections |= section_pubnames; + else if (strcmp (arg, "str") == 0) + print_debug_sections |= section_str; + else if (strcmp (arg, "macinfo") == 0) + print_debug_sections |= section_macinfo; + else + { + fprintf (stderr, gettext ("Unknown DWARF debug section `%s'.\n"), + arg); + argp_help (&argp, stderr, ARGP_HELP_SEE, + program_invocation_short_name); + exit (1); + } + any_control_option = true; + break; + case ARGP_KEY_NO_ARGS: + fputs (gettext ("Missing file name.\n"), stderr); + goto do_argp_help; + case ARGP_KEY_FINI: + if (! any_control_option) + { + fputs (gettext ("No operation specified.\n"), stderr); + do_argp_help: + argp_help (&argp, stderr, ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR, + program_invocation_short_name); + exit (1); + } + break; + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + + +/* Print the version information. */ +static void +print_version (FILE *stream, struct argp_state *state __attribute__ ((unused))) +{ + fprintf (stream, "readelf (%s) %s\n", PACKAGE_NAME, VERSION); + fprintf (stream, gettext ("\ +Copyright (C) %s Red Hat, Inc.\n\ +This is free software; see the source for copying conditions. There is NO\n\ +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ +"), "2005"); + fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); +} + + +/* Process one file. */ +static void +process_file (int fd, Elf *elf, const char *prefix, const char *fname, + bool only_one) +{ + /* We can handle two types of files: ELF files and archives. */ + Elf_Kind kind = elf_kind (elf); + struct stat64 st; + + switch (kind) + { + case ELF_K_ELF: + /* Yes! It's an ELF file. */ + process_elf_file (elf, prefix, fname, only_one); + break; + + case ELF_K_AR: + { + Elf *subelf; + Elf_Cmd cmd = ELF_C_READ_MMAP; + size_t prefix_len = prefix == NULL ? 0 : strlen (prefix); + size_t fname_len = strlen (fname) + 1; + char new_prefix[prefix_len + 1 + fname_len]; + char *cp = new_prefix; + + /* Create the full name of the file. */ + if (prefix != NULL) + { + cp = mempcpy (cp, prefix, prefix_len); + *cp++ = ':'; + } + memcpy (cp, fname, fname_len); + + /* It's an archive. We process each file in it. */ + while ((subelf = elf_begin (fd, cmd, elf)) != NULL) + { + kind = elf_kind (subelf); + + /* Call this function recursively. */ + if (kind == ELF_K_ELF || kind == ELF_K_AR) + { + Elf_Arhdr *arhdr = elf_getarhdr (subelf); + assert (arhdr != NULL); + + process_file (fd, subelf, new_prefix, arhdr->ar_name, false); + } + + /* Get next archive element. */ + cmd = elf_next (subelf); + if (elf_end (subelf) != 0) + error (0, 0, + gettext (" error while freeing sub-ELF descriptor: %s\n"), + elf_errmsg (-1)); + } + } + break; + + default: + if (fstat64 (fd, &st) != 0) + error (0, errno, gettext ("cannot stat input file")); + else if (st.st_size == 0) + error (0, 0, gettext ("input file is empty")); + else + /* We cannot do anything. */ + error (0, 0, gettext ("\ +Not an ELF file - it has the wrong magic bytes at the start")); + break; + } +} + + +/* Process one file. */ +static void +process_elf_file (Elf *elf, const char *prefix, const char *fname, + bool only_one) +{ + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr = gelf_getehdr (elf, &ehdr_mem); + Ebl *ebl; + + /* Print the file name. */ + if (!only_one) + { + if (prefix != NULL) + printf ("\n%s(%s):\n\n", prefix, fname); + else + printf ("\n%s:\n\n", fname); + } + + if (ehdr == NULL) + { + error (0, 0, gettext ("cannot read ELF header: %s"), elf_errmsg (-1)); + return; + } + + ebl = ebl_openbackend (elf); + if (ebl == NULL) + { + error (0, errno, gettext ("cannot create EBL handle")); + return; + } + + /* Determine the number of sections. */ + if (elf_getshnum (ebl->elf, &shnum) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot determine number of sections: %s"), + elf_errmsg (-1)); + + if (print_file_header) + print_ehdr (ebl, ehdr); + if (print_section_header) + print_shdr (ebl, ehdr); + if (print_program_header) + print_phdr (ebl, ehdr); + if (print_section_groups) + print_scngrp (ebl); + if (print_dynamic_table) + print_dynamic (ebl); + if (print_relocations) + print_relocs (ebl); + if (print_histogram) + handle_hash (ebl); + if (print_symbol_table) + print_symtab (ebl, SHT_DYNSYM); + if (print_version_info) + print_verinfo (ebl); + if (print_symbol_table) + print_symtab (ebl, SHT_SYMTAB); + if (print_arch) + print_liblist (ebl); + if (print_debug_sections != 0) + print_debug (ebl, ehdr); + if (print_notes) + handle_notes (ebl, ehdr); + + ebl_closebackend (ebl); +} + + +/* Print file type. */ +static void +print_file_type (unsigned short int e_type) +{ + if (e_type <= ET_CORE) + { + static const char *knowntypes[] = + { + N_("NONE (None)"), + N_("REL (Relocatable file)"), + N_("EXEC (Executable file)"), + N_("DYN (Shared object file)"), + N_("CORE (Core file)") + }; + puts (gettext (knowntypes[e_type])); + } + else if (e_type >= ET_LOOS && e_type <= ET_HIOS) + printf (gettext ("OS Specific: (%x)\n"), e_type); + else if (e_type >= ET_LOPROC /* && e_type <= ET_HIPROC always true */) + printf (gettext ("Processor Specific: (%x)\n"), e_type); + else + puts ("???"); +} + + +/* Print ELF header. */ +static void +print_ehdr (Ebl *ebl, GElf_Ehdr *ehdr) +{ + char buf[512]; + size_t cnt; + + fputs_unlocked (gettext ("ELF Header:\n Magic: "), stdout); + for (cnt = 0; cnt < EI_NIDENT; ++cnt) + printf (" %02hhx", ehdr->e_ident[cnt]); + + printf (gettext ("\n Class: %s\n"), + ehdr->e_ident[EI_CLASS] == ELFCLASS32 ? "ELF32" + : ehdr->e_ident[EI_CLASS] == ELFCLASS64 ? "ELF64" + : "\?\?\?"); + + printf (gettext (" Data: %s\n"), + ehdr->e_ident[EI_DATA] == ELFDATA2LSB + ? "2's complement, little endian" + : ehdr->e_ident[EI_DATA] == ELFDATA2MSB + ? "2's complement, big endian" : "\?\?\?"); + + printf (gettext (" Version: %hhd %s\n"), + ehdr->e_ident[EI_VERSION], + ehdr->e_ident[EI_VERSION] == EV_CURRENT ? gettext ("(current)") + : "(\?\?\?)"); + + printf (gettext (" OS/ABI: %s\n"), + ebl_osabi_name (ebl, ehdr->e_ident[EI_OSABI], buf, sizeof (buf))); + + printf (gettext (" ABI Version: %hhd\n"), + ehdr->e_ident[EI_ABIVERSION]); + + fputs_unlocked (gettext (" Type: "), stdout); + print_file_type (ehdr->e_type); + + printf (gettext (" Machine: %s\n"), ebl->name); + + printf (gettext (" Version: %d %s\n"), + ehdr->e_version, + ehdr->e_version == EV_CURRENT ? gettext ("(current)") : "(\?\?\?)"); + + printf (gettext (" Entry point address: %#" PRIx64 "\n"), + ehdr->e_entry); + + printf (gettext (" Start of program headers: %" PRId64 " %s\n"), + ehdr->e_phoff, gettext ("(bytes into file)")); + + printf (gettext (" Start of section headers: %" PRId64 " %s\n"), + ehdr->e_shoff, gettext ("(bytes into file)")); + + printf (gettext (" Flags: %s\n"), + ebl_machine_flag_name (ebl, ehdr->e_flags, buf, sizeof (buf))); + + printf (gettext (" Size of this header: %" PRId16 " %s\n"), + ehdr->e_ehsize, gettext ("(bytes)")); + + printf (gettext (" Size of program header entries: %" PRId16 " %s\n"), + ehdr->e_phentsize, gettext ("(bytes)")); + + printf (gettext (" Number of program headers entries: %" PRId16 "\n"), + ehdr->e_phnum); + + printf (gettext (" Size of section header entries: %" PRId16 " %s\n"), + ehdr->e_shentsize, gettext ("(bytes)")); + + printf (gettext (" Number of section headers entries: %" PRId16), + ehdr->e_shnum); + if (ehdr->e_shnum == 0) + { + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + shdr = gelf_getshdr (elf_getscn (ebl->elf, 0), &shdr_mem); + if (shdr != NULL) + printf (gettext (" (%" PRIu32 " in [0].sh_size)"), + (uint32_t) shdr->sh_size); + else + fputs_unlocked (gettext (" ([0] not available)"), stdout); + } + fputc_unlocked ('\n', stdout); + + if (ehdr->e_shstrndx == SHN_XINDEX) + { + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + shdr = gelf_getshdr (elf_getscn (ebl->elf, 0), &shdr_mem); + if (shdr != NULL) + /* We managed to get the zeroth section. */ + snprintf (buf, sizeof (buf), gettext (" (%" PRIu32 " in [0].sh_link)"), + (uint32_t) shdr->sh_link); + else + { + strncpy (buf, gettext (" ([0] not available)"), sizeof (buf)); + buf[sizeof (buf) - 1] = '\0'; + } + + printf (gettext (" Section header string table index: XINDEX%s\n\n"), + buf); + } + else + printf (gettext (" Section header string table index: %" PRId16 "\n\n"), + ehdr->e_shstrndx); +} + + +static const char * +get_visibility_type (int value) +{ + switch (value) + { + case STV_DEFAULT: + return "DEFAULT"; + case STV_INTERNAL: + return "INTERNAL"; + case STV_HIDDEN: + return "HIDDEN"; + case STV_PROTECTED: + return "PROTECTED"; + default: + return "???"; + } +} + + +/* Print the section headers. */ +static void +print_shdr (Ebl *ebl, GElf_Ehdr *ehdr) +{ + size_t cnt; + size_t shstrndx; + + if (! print_file_header) + printf (gettext ("\ +There are %d section headers, starting at offset %#" PRIx64 ":\n\ +\n"), + ehdr->e_shnum, ehdr->e_shoff); + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + puts (gettext ("Section Headers:")); + + if (ehdr->e_ident[EI_CLASS] == ELFCLASS32) + puts (gettext ("[Nr] Name Type Addr Off Size ES Flags Lk Inf Al")); + else + puts (gettext ("[Nr] Name Type Addr Off Size ES Flags Lk Inf Al")); + + for (cnt = 0; cnt < shnum; ++cnt) + { + char buf[128]; + char flagbuf[20]; + char *cp; + Elf_Scn *scn = elf_getscn (ebl->elf, cnt); + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + if (scn == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot get section: %s"), + elf_errmsg (-1)); + + /* Get the section header. */ + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot get section header: %s"), + elf_errmsg (-1)); + + cp = flagbuf; + if (shdr->sh_flags & SHF_WRITE) + *cp++ = 'W'; + if (shdr->sh_flags & SHF_ALLOC) + *cp++ = 'A'; + if (shdr->sh_flags & SHF_EXECINSTR) + *cp++ = 'X'; + if (shdr->sh_flags & SHF_MERGE) + *cp++ = 'M'; + if (shdr->sh_flags & SHF_STRINGS) + *cp++ = 'S'; + if (shdr->sh_flags & SHF_INFO_LINK) + *cp++ = 'I'; + if (shdr->sh_flags & SHF_LINK_ORDER) + *cp++ = 'L'; + if (shdr->sh_flags & SHF_OS_NONCONFORMING) + *cp++ = 'N'; + if (shdr->sh_flags & SHF_GROUP) + *cp++ = 'G'; + if (shdr->sh_flags & SHF_TLS) + *cp++ = 'T'; + if (shdr->sh_flags & SHF_ORDERED) + *cp++ = 'O'; + if (shdr->sh_flags & SHF_EXCLUDE) + *cp++ = 'E'; + *cp = '\0'; + + printf ("[%2zu] %-20s %-12s %0*" PRIx64 " %0*" PRIx64 " %0*" PRIx64 + " %2" PRId64 " %-5s %2" PRId32 " %3" PRId32 + " %2" PRId64 "\n", + cnt, + elf_strptr (ebl->elf, shstrndx, shdr->sh_name) + ?: "", + ebl_section_type_name (ebl, shdr->sh_type, buf, sizeof (buf)), + ehdr->e_ident[EI_CLASS] == ELFCLASS32 ? 8 : 16, shdr->sh_addr, + ehdr->e_ident[EI_CLASS] == ELFCLASS32 ? 6 : 8, shdr->sh_offset, + ehdr->e_ident[EI_CLASS] == ELFCLASS32 ? 6 : 8, shdr->sh_size, + shdr->sh_entsize, flagbuf, shdr->sh_link, shdr->sh_info, + shdr->sh_addralign); + } + + fputc_unlocked ('\n', stdout); +} + + +/* Print the program header. */ +static void +print_phdr (Ebl *ebl, GElf_Ehdr *ehdr) +{ + size_t cnt; + size_t shstrndx; + + if (ehdr->e_phnum == 0) + /* No program header, this is OK in relocatable objects. */ + return; + + puts (gettext ("Program Headers:")); + if (ehdr->e_ident[EI_CLASS] == ELFCLASS32) + puts (gettext ("\ + Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align")); + else + puts (gettext ("\ + Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align")); + + /* Process all program headers. */ + bool has_relro = false; + GElf_Addr relro_from = 0; + GElf_Addr relro_to = 0; + for (cnt = 0; cnt < ehdr->e_phnum; ++cnt) + { + char buf[128]; + GElf_Phdr mem; + GElf_Phdr *phdr = gelf_getphdr (ebl->elf, cnt, &mem); + + /* If for some reason the header cannot be returned show this. */ + if (phdr == NULL) + { + puts (" ???"); + continue; + } + + printf (" %-14s 0x%06" PRIx64 " 0x%0*" PRIx64 " 0x%0*" PRIx64 + " 0x%06" PRIx64 " 0x%06" PRIx64 " %c%c%c 0x%" PRIx64 "\n", + ebl_segment_type_name (ebl, phdr->p_type, buf, sizeof (buf)), + phdr->p_offset, + ehdr->e_ident[EI_CLASS] == ELFCLASS32 ? 8 : 16, phdr->p_vaddr, + ehdr->e_ident[EI_CLASS] == ELFCLASS32 ? 8 : 16, phdr->p_paddr, + phdr->p_filesz, + phdr->p_memsz, + phdr->p_flags & PF_R ? 'R' : ' ', + phdr->p_flags & PF_W ? 'W' : ' ', + phdr->p_flags & PF_X ? 'E' : ' ', + phdr->p_align); + + if (phdr->p_type == PT_INTERP) + { + /* We can show the user the name of the interpreter. */ + size_t maxsize; + char *filedata = elf_rawfile (ebl->elf, &maxsize); + + if (filedata != NULL && phdr->p_offset < maxsize) + printf (gettext ("\t[Requesting program interpreter: %s]\n"), + filedata + phdr->p_offset); + } + else if (phdr->p_type == PT_GNU_RELRO) + { + has_relro = true; + relro_from = phdr->p_vaddr; + relro_to = relro_from + phdr->p_memsz; + } + } + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + puts (gettext ("\n Section to Segment mapping:\n Segment Sections...")); + + for (cnt = 0; cnt < ehdr->e_phnum; ++cnt) + { + GElf_Phdr phdr_mem; + GElf_Phdr *phdr = gelf_getphdr (ebl->elf, cnt, &phdr_mem); + size_t inner; + + /* Print the segment number. */ + printf (" %2.2zu ", cnt); + + /* This must not happen. */ + if (phdr == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot get program header: %s"), + elf_errmsg (-1)); + + /* Iterate over the sections. */ + bool in_relro = false; + bool in_ro = false; + for (inner = 1; inner < shnum; ++inner) + { + Elf_Scn *scn = elf_getscn (ebl->elf, inner); + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + /* It should not happen. */ + if (scn == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot get section: %s"), + elf_errmsg (-1)); + + /* Get the section header. */ + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header: %s"), + elf_errmsg (-1)); + + if (shdr->sh_size > 0 + /* Compare allocated sections by VMA, unallocated + sections by file offset. */ + && (shdr->sh_flags & SHF_ALLOC + ? (shdr->sh_addr >= phdr->p_vaddr + && (shdr->sh_addr + shdr->sh_size + <= phdr->p_vaddr + phdr->p_memsz)) + : (shdr->sh_offset >= phdr->p_offset + && (shdr->sh_offset + shdr->sh_size + <= phdr->p_offset + phdr->p_filesz)))) + { + if (has_relro && !in_relro + && shdr->sh_addr >= relro_from + && shdr->sh_addr + shdr->sh_size <= relro_to) + { + fputs_unlocked (" [RELRO:", stdout); + in_relro = true; + } + else if (has_relro && in_relro && shdr->sh_addr >= relro_to) + { + fputs_unlocked ("]", stdout); + in_relro = false; + } + else if (has_relro && in_relro + && shdr->sh_addr + shdr->sh_size > relro_to) + fputs_unlocked ("] p_type == PT_LOAD && (phdr->p_flags & PF_W) == 0) + { + if (!in_ro) + { + fputs_unlocked (" [RO:", stdout); + in_ro = true; + } + } + else + { + /* Determine the segment this section is part of. */ + size_t cnt2; + GElf_Phdr *phdr2 = NULL; + for (cnt2 = 0; cnt2 < ehdr->e_phnum; ++cnt2) + { + GElf_Phdr phdr2_mem; + phdr2 = gelf_getphdr (ebl->elf, cnt2, &phdr2_mem); + + if (phdr2 != NULL && phdr2->p_type == PT_LOAD + && shdr->sh_addr >= phdr2->p_vaddr + && (shdr->sh_addr + shdr->sh_size + <= phdr2->p_vaddr + phdr2->p_memsz)) + break; + } + + if (cnt2 < ehdr->e_phnum) + { + if ((phdr2->p_flags & PF_W) == 0 && !in_ro) + { + fputs_unlocked (" [RO:", stdout); + in_ro = true; + } + else if ((phdr2->p_flags & PF_W) != 0 && in_ro) + { + fputs_unlocked ("]", stdout); + in_ro = false; + } + } + } + + printf (" %s", + elf_strptr (ebl->elf, shstrndx, shdr->sh_name)); + + /* Signal that this sectin is only partially covered. */ + if (has_relro && in_relro + && shdr->sh_addr + shdr->sh_size > relro_to) + { + fputs_unlocked (">", stdout); + in_relro = false; + } + } + } + if (in_relro || in_ro) + fputs_unlocked ("]", stdout); + + /* Finish the line. */ + fputc_unlocked ('\n', stdout); + } +} + + +static void +handle_scngrp (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr) +{ + Elf_Data *data; + Elf32_Word *grpref; + Elf_Scn *symscn; + GElf_Shdr symshdr_mem; + GElf_Shdr *symshdr; + Elf_Data *symdata; + GElf_Sym sym_mem; + size_t cnt; + size_t shstrndx; + + /* Get the data of the section. */ + data = elf_getdata (scn, NULL); + + symscn = elf_getscn (ebl->elf, shdr->sh_link); + symshdr = gelf_getshdr (symscn, &symshdr_mem); + symdata = elf_getdata (symscn, NULL); + + if (data == NULL || data->d_size < sizeof (Elf32_Word) || symshdr == NULL + || symdata == NULL) + return; + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + grpref = (Elf32_Word *) data->d_buf; + + printf ((grpref[0] & GRP_COMDAT) + ? ngettext ("\ +\nCOMDAT section group [%2zu] '%s' with signature '%s' contains %zu entry:\n", + "\ +\nCOMDAT section group [%2zu] '%s' with signature '%s' contains %zu entries:\n", + data->d_size / sizeof (Elf32_Word) - 1) + : ngettext ("\ +\nSection group [%2zu] '%s' with signature '%s' contains %zu entry:\n", "\ +\nSection group [%2zu] '%s' with signature '%s' contains %zu entries:\n", + data->d_size / sizeof (Elf32_Word) - 1), + elf_ndxscn (scn), + elf_strptr (ebl->elf, shstrndx, shdr->sh_name), + elf_strptr (ebl->elf, symshdr->sh_link, + gelf_getsym (symdata, shdr->sh_info, &sym_mem)->st_name) + ?: gettext (""), + data->d_size / sizeof (Elf32_Word) - 1); + + for (cnt = 1; cnt < data->d_size / sizeof (Elf32_Word); ++cnt) + { + GElf_Shdr grpshdr_mem; + GElf_Shdr *grpshdr; + + grpshdr = gelf_getshdr (elf_getscn (ebl->elf, grpref[cnt]), + &grpshdr_mem); + + if (grpshdr == NULL) + printf (gettext (" [%2u] \n"), grpref[cnt]); + else + printf (" [%2u] %s\n", + grpref[cnt], + elf_strptr (ebl->elf, shstrndx, grpshdr->sh_name) + ?: gettext ("")); + } +} + + +static void +print_scngrp (Ebl *ebl) +{ + /* Find all relocation sections and handle them. */ + Elf_Scn *scn = NULL; + + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + /* Handle the section if it is a symbol table. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr != NULL && shdr->sh_type == SHT_GROUP) + handle_scngrp (ebl, scn, shdr); + } +} + + +static const struct flags +{ + int mask; + const char *str; +} dt_flags[] = + { + { DF_ORIGIN, "ORIGIN" }, + { DF_SYMBOLIC, "SYMBOLIC" }, + { DF_TEXTREL, "TEXTREL" }, + { DF_BIND_NOW, "BIND_NOW" }, + { DF_STATIC_TLS, "STATIC_TLS" } + }; +static const int ndt_flags = sizeof (dt_flags) / sizeof (dt_flags[0]); + +static const struct flags dt_flags_1[] = + { + { DF_1_NOW, "NOW" }, + { DF_1_GLOBAL, "GLOBAL" }, + { DF_1_GROUP, "GROUP" }, + { DF_1_NODELETE, "NODELETE" }, + { DF_1_LOADFLTR, "LOADFLTR" }, + { DF_1_INITFIRST, "INITFIRST" }, + { DF_1_NOOPEN, "NOOPEN" }, + { DF_1_ORIGIN, "ORIGIN" }, + { DF_1_DIRECT, "DIRECT" }, + { DF_1_TRANS, "TRANS" }, + { DF_1_INTERPOSE, "INTERPOSE" }, + { DF_1_NODEFLIB, "NODEFLIB" }, + { DF_1_NODUMP, "NODUMP" }, + { DF_1_CONFALT, "CONFALT" }, + { DF_1_ENDFILTEE, "ENDFILTEE" }, + { DF_1_DISPRELDNE, "DISPRELDNE" }, + { DF_1_DISPRELPND, "DISPRELPND" }, + }; +static const int ndt_flags_1 = sizeof (dt_flags_1) / sizeof (dt_flags_1[0]); + +static const struct flags dt_feature_1[] = + { + { DTF_1_PARINIT, "PARINIT" }, + { DTF_1_CONFEXP, "CONFEXP" } + }; +static const int ndt_feature_1 = (sizeof (dt_feature_1) + / sizeof (dt_feature_1[0])); + +static const struct flags dt_posflag_1[] = + { + { DF_P1_LAZYLOAD, "LAZYLOAD" }, + { DF_P1_GROUPPERM, "GROUPPERM" } + }; +static const int ndt_posflag_1 = (sizeof (dt_posflag_1) + / sizeof (dt_posflag_1[0])); + + +static void +print_flags (int class, GElf_Xword d_val, const struct flags *flags, + int nflags) +{ + bool first = true; + int cnt; + + for (cnt = 0; cnt < nflags; ++cnt) + if (d_val & flags[cnt].mask) + { + if (!first) + putchar_unlocked (' '); + fputs_unlocked (flags[cnt].str, stdout); + d_val &= ~flags[cnt].mask; + first = false; + } + + if (d_val != 0) + { + if (!first) + putchar_unlocked (' '); + printf ("%#0*" PRIx64, class == ELFCLASS32 ? 10 : 18, d_val); + } + + putchar_unlocked ('\n'); +} + + +static void +print_dt_flags (int class, GElf_Xword d_val) +{ + print_flags (class, d_val, dt_flags, ndt_flags); +} + + +static void +print_dt_flags_1 (int class, GElf_Xword d_val) +{ + print_flags (class, d_val, dt_flags_1, ndt_flags_1); +} + + +static void +print_dt_feature_1 (int class, GElf_Xword d_val) +{ + print_flags (class, d_val, dt_feature_1, ndt_feature_1); +} + + +static void +print_dt_posflag_1 (int class, GElf_Xword d_val) +{ + print_flags (class, d_val, dt_posflag_1, ndt_posflag_1); +} + + +static void +handle_dynamic (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr) +{ + int class = gelf_getclass (ebl->elf); + GElf_Shdr glink; + Elf_Data *data; + size_t cnt; + size_t shstrndx; + + /* Get the data of the section. */ + data = elf_getdata (scn, NULL); + if (data == NULL) + return; + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + printf (ngettext ("\ +\nDynamic segment contains %lu entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", + "\ +\nDynamic segment contains %lu entries:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", + shdr->sh_size / shdr->sh_entsize), + (unsigned long int) (shdr->sh_size / shdr->sh_entsize), + class == ELFCLASS32 ? 10 : 18, shdr->sh_addr, + shdr->sh_offset, + (int) shdr->sh_link, + elf_strptr (ebl->elf, shstrndx, + gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), + &glink)->sh_name)); + fputs_unlocked (gettext (" Type Value\n"), stdout); + + for (cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) + { + char buf[64]; + GElf_Dyn dynmem; + GElf_Dyn *dyn; + + dyn = gelf_getdyn (data, cnt, &dynmem); + if (dyn == NULL) + break; + + printf (" %-17s ", + ebl_dynamic_tag_name (ebl, dyn->d_tag, buf, sizeof (buf))); + + switch (dyn->d_tag) + { + case DT_NULL: + case DT_DEBUG: + case DT_BIND_NOW: + case DT_TEXTREL: + /* No further output. */ + fputc ('\n', stdout); + break; + + case DT_NEEDED: + printf (gettext ("Shared library: [%s]\n"), + elf_strptr (ebl->elf, shdr->sh_link, dyn->d_un.d_val)); + break; + + case DT_SONAME: + printf (gettext ("Library soname: [%s]\n"), + elf_strptr (ebl->elf, shdr->sh_link, dyn->d_un.d_val)); + break; + + case DT_RPATH: + printf (gettext ("Library rpath: [%s]\n"), + elf_strptr (ebl->elf, shdr->sh_link, dyn->d_un.d_val)); + break; + + case DT_RUNPATH: + printf (gettext ("Library runpath: [%s]\n"), + elf_strptr (ebl->elf, shdr->sh_link, dyn->d_un.d_val)); + break; + + case DT_PLTRELSZ: + case DT_RELASZ: + case DT_STRSZ: + case DT_RELSZ: + case DT_RELAENT: + case DT_SYMENT: + case DT_RELENT: + case DT_PLTPADSZ: + case DT_MOVEENT: + case DT_MOVESZ: + case DT_INIT_ARRAYSZ: + case DT_FINI_ARRAYSZ: + case DT_SYMINSZ: + case DT_SYMINENT: + case DT_GNU_CONFLICTSZ: + case DT_GNU_LIBLISTSZ: + printf (gettext ("%" PRId64 " (bytes)\n"), dyn->d_un.d_val); + break; + + case DT_VERDEFNUM: + case DT_VERNEEDNUM: + case DT_RELACOUNT: + case DT_RELCOUNT: + printf ("%" PRId64 "\n", dyn->d_un.d_val); + break; + + case DT_PLTREL: + puts (ebl_dynamic_tag_name (ebl, dyn->d_un.d_val, NULL, 0)); + break; + + case DT_FLAGS: + print_dt_flags (class, dyn->d_un.d_val); + break; + + case DT_FLAGS_1: + print_dt_flags_1 (class, dyn->d_un.d_val); + break; + + case DT_FEATURE_1: + print_dt_feature_1 (class, dyn->d_un.d_val); + break; + + case DT_POSFLAG_1: + print_dt_posflag_1 (class, dyn->d_un.d_val); + break; + + default: + printf ("%#0*" PRIx64 "\n", + class == ELFCLASS32 ? 10 : 18, dyn->d_un.d_val); + break; + } + } +} + + +/* Print the dynamic segment. */ +static void +print_dynamic (Ebl *ebl) +{ + /* Find all relocation sections and handle them. */ + Elf_Scn *scn = NULL; + + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + /* Handle the section if it is a symbol table. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr != NULL && shdr->sh_type == SHT_DYNAMIC) + { + handle_dynamic (ebl, scn, shdr); + break; + } + } +} + + +/* Print relocations. */ +static void +print_relocs (Ebl *ebl) +{ + /* Find all relocation sections and handle them. */ + Elf_Scn *scn = NULL; + + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + /* Handle the section if it is a symbol table. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr != NULL) + { + if (shdr->sh_type == SHT_REL) + handle_relocs_rel (ebl, scn, shdr); + else if (shdr->sh_type == SHT_RELA) + handle_relocs_rela (ebl, scn, shdr); + } + } +} + + +/* Handle a relocation section. */ +static void +handle_relocs_rel (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr) +{ + int class = gelf_getclass (ebl->elf); + int nentries = shdr->sh_size / shdr->sh_entsize; + int cnt; + Elf_Data *data; + Elf_Scn *symscn; + GElf_Shdr symshdr_mem; + GElf_Shdr *symshdr; + Elf_Data *symdata; + GElf_Shdr destshdr_mem; + GElf_Shdr *destshdr; + Elf_Scn *xndxscn; + Elf_Data *xndxdata = NULL; + size_t shstrndx; + + /* Get the data of the section. */ + data = elf_getdata (scn, NULL); + if (data == NULL) + return; + + /* Get the symbol table information. */ + symscn = elf_getscn (ebl->elf, shdr->sh_link); + symshdr = gelf_getshdr (symscn, &symshdr_mem); + symdata = elf_getdata (symscn, NULL); + + /* Get the section header of the section the relocations are for. */ + destshdr = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_info), + &destshdr_mem); + + if (symshdr == NULL || symdata == NULL || destshdr == NULL) + { + printf (gettext ("\nInvalid symbol table at offset %#0" PRIx64 "\n"), + shdr->sh_offset); + return; + } + + /* Search for the optional extended section index table. */ + xndxscn = NULL; + while ((xndxscn = elf_nextscn (ebl->elf, xndxscn)) != NULL) + { + GElf_Shdr xndxshdr_mem; + GElf_Shdr *xndxshdr; + + xndxshdr = gelf_getshdr (xndxscn, &xndxshdr_mem); + if (xndxshdr != NULL && xndxshdr->sh_type == SHT_SYMTAB_SHNDX + && xndxshdr->sh_link == elf_ndxscn (symscn)) + { + /* Found it. */ + xndxdata = elf_getdata (xndxscn, NULL); + break; + } + } + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + if (shdr->sh_info != 0) + printf (ngettext ("\ +\nRelocation section [%2u] '%s' for section [%2u] '%s' at offset %#0" PRIx64 " contains %d entry:\n", + "\ +\nRelocation section [%2u] '%s' for section [%2u] '%s' at offset %#0" PRIx64 " contains %d entries:\n", + nentries), + (unsigned int) elf_ndxscn (scn), + elf_strptr (ebl->elf, shstrndx, shdr->sh_name), + (unsigned int) shdr->sh_info, + elf_strptr (ebl->elf, shstrndx, destshdr->sh_name), + shdr->sh_offset, + nentries); + else + /* The .rel.dyn section does not refer to a specific section but + instead of section index zero. Do not try to print a section + name. */ + printf (ngettext ("\ +\nRelocation section [%2u] '%s' at offset %#0" PRIx64 " contains %d entry:\n", + "\ +\nRelocation section [%2u] '%s' at offset %#0" PRIx64 " contains %d entries:\n", + nentries), + (unsigned int) elf_ndxscn (scn), + elf_strptr (ebl->elf, shstrndx, shdr->sh_name), + shdr->sh_offset, + nentries); + fputs_unlocked (class == ELFCLASS32 + ? gettext ("\ + Offset Type Value Name\n") + : gettext ("\ + Offset Type Value Name\n"), + stdout); + + for (cnt = 0; cnt < nentries; ++cnt) + { + GElf_Rel relmem; + GElf_Rel *rel; + + rel = gelf_getrel (data, cnt, &relmem); + if (rel != NULL) + { + char buf[128]; + GElf_Sym symmem; + GElf_Sym *sym; + Elf32_Word xndx; + + sym = gelf_getsymshndx (symdata, xndxdata, GELF_R_SYM (rel->r_info), + &symmem, &xndx); + if (sym == NULL) + printf (" %#0*" PRIx64 " %-20s <%s %ld>\n", + class == ELFCLASS32 ? 10 : 18, rel->r_offset, + ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info)) + /* Avoid the leading R_ which isn't carrying any + information. */ + ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info), + buf, sizeof (buf)) + 2 + : gettext (""), + gettext ("INVALID SYMBOL"), + (long int) GELF_R_SYM (rel->r_info)); + else if (GELF_ST_TYPE (sym->st_info) != STT_SECTION) + printf (" %#0*" PRIx64 " %-20s %#0*" PRIx64 " %s\n", + class == ELFCLASS32 ? 10 : 18, rel->r_offset, + ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info)) + /* Avoid the leading R_ which isn't carrying any + information. */ + ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info), + buf, sizeof (buf)) + 2 + : gettext (""), + class == ELFCLASS32 ? 10 : 18, sym->st_value, + elf_strptr (ebl->elf, symshdr->sh_link, sym->st_name)); + else + { + destshdr = gelf_getshdr (elf_getscn (ebl->elf, + sym->st_shndx == SHN_XINDEX + ? xndx : sym->st_shndx), + &destshdr_mem); + + if (shdr == NULL) + printf (" %#0*" PRIx64 " %-20s <%s %ld>\n", + class == ELFCLASS32 ? 10 : 18, rel->r_offset, + ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info)) + /* Avoid the leading R_ which isn't carrying any + information. */ + ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info), + buf, sizeof (buf)) + 2 + : gettext (""), + gettext ("INVALID SECTION"), + (long int) (sym->st_shndx == SHN_XINDEX + ? xndx : sym->st_shndx)); + else + printf (" %#0*" PRIx64 " %-20s %#0*" PRIx64 " %s\n", + class == ELFCLASS32 ? 10 : 18, rel->r_offset, + ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info)) + /* Avoid the leading R_ which isn't carrying any + information. */ + ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info), + buf, sizeof (buf)) + 2 + : gettext (""), + class == ELFCLASS32 ? 10 : 18, sym->st_value, + elf_strptr (ebl->elf, shstrndx, destshdr->sh_name)); + } + } + } +} + + +/* Handle a relocation section. */ +static void +handle_relocs_rela (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr) +{ + int class = gelf_getclass (ebl->elf); + int nentries = shdr->sh_size / shdr->sh_entsize; + + /* Get the data of the section. */ + Elf_Data *data = elf_getdata (scn, NULL); + if (data == NULL) + return; + + /* Get the symbol table information. */ + Elf_Scn *symscn = elf_getscn (ebl->elf, shdr->sh_link); + GElf_Shdr symshdr_mem; + GElf_Shdr *symshdr = gelf_getshdr (symscn, &symshdr_mem); + Elf_Data *symdata = elf_getdata (symscn, NULL); + + /* Get the section header of the section the relocations are for. */ + GElf_Shdr destshdr_mem; + GElf_Shdr *destshdr = gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_info), + &destshdr_mem); + + if (symshdr == NULL || symdata == NULL || destshdr == NULL) + { + printf (gettext ("\nInvalid symbol table at offset %#0" PRIx64 "\n"), + shdr->sh_offset); + return; + } + + /* Search for the optional extended section index table. */ + Elf_Data *xndxdata = NULL; + Elf_Scn *xndxscn = NULL; + while ((xndxscn = elf_nextscn (ebl->elf, xndxscn)) != NULL) + { + GElf_Shdr xndxshdr_mem; + GElf_Shdr *xndxshdr; + + xndxshdr = gelf_getshdr (xndxscn, &xndxshdr_mem); + if (xndxshdr != NULL && xndxshdr->sh_type == SHT_SYMTAB_SHNDX + && xndxshdr->sh_link == elf_ndxscn (symscn)) + { + /* Found it. */ + xndxdata = elf_getdata (xndxscn, NULL); + break; + } + } + + /* Get the section header string table index. */ + size_t shstrndx; + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + printf (ngettext ("\ +\nRelocation section [%2zu] '%s' for section [%2u] '%s' at offset %#0" PRIx64 " contains %d entry:\n", + "\ +\nRelocation section [%2zu] '%s' for section [%2u] '%s' at offset %#0" PRIx64 " contains %d entries:\n", + nentries), + elf_ndxscn (scn), + elf_strptr (ebl->elf, shstrndx, shdr->sh_name), + (unsigned int) shdr->sh_info, + elf_strptr (ebl->elf, shstrndx, destshdr->sh_name), + shdr->sh_offset, + nentries); + fputs_unlocked (class == ELFCLASS32 + ? gettext ("\ + Offset Type Value Addend Name\n") + : gettext ("\ + Offset Type Value Addend Name\n"), + stdout); + + for (int cnt = 0; cnt < nentries; ++cnt) + { + GElf_Rela relmem; + GElf_Rela *rel = gelf_getrela (data, cnt, &relmem); + if (rel != NULL) + { + char buf[64]; + GElf_Sym symmem; + GElf_Sym *sym; + Elf32_Word xndx; + + sym = gelf_getsymshndx (symdata, xndxdata, GELF_R_SYM (rel->r_info), + &symmem, &xndx); + + if (sym == NULL) + printf (" %#0*" PRIx64 " %-15s <%s %ld>\n", + class == ELFCLASS32 ? 10 : 18, rel->r_offset, + ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info)) + /* Avoid the leading R_ which isn't carrying any + information. */ + ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info), + buf, sizeof (buf)) + 2 + : gettext (""), + gettext ("INVALID SYMBOL"), + (long int) GELF_R_SYM (rel->r_info)); + else if (GELF_ST_TYPE (sym->st_info) != STT_SECTION) + printf ("\ + %#0*" PRIx64 " %-15s %#0*" PRIx64 " +%5" PRId64 " %s\n", + class == ELFCLASS32 ? 10 : 18, rel->r_offset, + ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info)) + /* Avoid the leading R_ which isn't carrying any + information. */ + ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info), + buf, sizeof (buf)) + 2 + : gettext (""), + class == ELFCLASS32 ? 10 : 18, sym->st_value, + rel->r_addend, + elf_strptr (ebl->elf, symshdr->sh_link, sym->st_name)); + else + { + destshdr = gelf_getshdr (elf_getscn (ebl->elf, + sym->st_shndx == SHN_XINDEX + ? xndx : sym->st_shndx), + &destshdr_mem); + + if (shdr == NULL) + printf (" %#0*" PRIx64 " %-15s <%s %ld>\n", + class == ELFCLASS32 ? 10 : 18, rel->r_offset, + ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info)) + /* Avoid the leading R_ which isn't carrying any + information. */ + ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info), + buf, sizeof (buf)) + 2 + : gettext (""), + gettext ("INVALID SECTION"), + (long int) (sym->st_shndx == SHN_XINDEX + ? xndx : sym->st_shndx)); + else + printf ("\ + %#0*" PRIx64 " %-15s %#0*" PRIx64 " +%5" PRId64 " %s\n", + class == ELFCLASS32 ? 10 : 18, rel->r_offset, + ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info)) + /* Avoid the leading R_ which isn't carrying any + information. */ + ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info), + buf, sizeof (buf)) + 2 + : gettext (""), + class == ELFCLASS32 ? 10 : 18, sym->st_value, + rel->r_addend, + elf_strptr (ebl->elf, shstrndx, destshdr->sh_name)); + } + } + } +} + + +/* Print the program header. */ +static void +print_symtab (Ebl *ebl, int type) +{ + /* Find the symbol table(s). For this we have to search through the + section table. */ + Elf_Scn *scn = NULL; + + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + /* Handle the section if it is a symbol table. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr != NULL && shdr->sh_type == (GElf_Word) type) + handle_symtab (ebl, scn, shdr); + } +} + + +static void +handle_symtab (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr) +{ + Elf_Data *versym_data = NULL; + Elf_Data *verneed_data = NULL; + Elf_Data *verdef_data = NULL; + Elf_Data *xndx_data = NULL; + Elf_Scn *runscn; + Elf_Data *data; + int class = gelf_getclass (ebl->elf); + unsigned int nsyms; + unsigned int cnt; + Elf32_Word verneed_stridx = 0; + Elf32_Word verdef_stridx = 0; + GElf_Shdr glink; + size_t shstrndx; + + /* Get the data of the section. */ + data = elf_getdata (scn, NULL); + if (data == NULL) + return; + + /* Find out whether we have other sections we might need. */ + runscn = NULL; + while ((runscn = elf_nextscn (ebl->elf, runscn)) != NULL) + { + GElf_Shdr runshdr_mem; + GElf_Shdr *runshdr = gelf_getshdr (runscn, &runshdr_mem); + + if (runshdr != NULL) + { + if (runshdr->sh_type == SHT_GNU_versym + && runshdr->sh_link == elf_ndxscn (scn)) + /* Bingo, found the version information. Now get the data. */ + versym_data = elf_getdata (runscn, NULL); + else if (runshdr->sh_type == SHT_GNU_verneed) + { + /* This is the information about the needed versions. */ + verneed_data = elf_getdata (runscn, NULL); + verneed_stridx = runshdr->sh_link; + } + else if (runshdr->sh_type == SHT_GNU_verdef) + { + /* This is the information about the defined versions. */ + verdef_data = elf_getdata (runscn, NULL); + verdef_stridx = runshdr->sh_link; + } + else if (runshdr->sh_type == SHT_SYMTAB_SHNDX + && runshdr->sh_link == elf_ndxscn (scn)) + /* Extended section index. */ + xndx_data = elf_getdata (runscn, NULL); + } + } + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + /* Now we can compute the number of entries in the section. */ + nsyms = data->d_size / (class == ELFCLASS32 + ? sizeof (Elf32_Sym) : sizeof (Elf64_Sym)); + + printf (ngettext ("\nSymbol table [%2u] '%s' contains %u entry:\n", + "\nSymbol table [%2u] '%s' contains %u entries:\n", + nsyms), + (unsigned int) elf_ndxscn (scn), + elf_strptr (ebl->elf, shstrndx, shdr->sh_name), nsyms); + printf (ngettext (" %lu local symbol String table: [%2u] '%s'\n", + " %lu local symbols String table: [%2u] '%s'\n", + shdr->sh_info), + (unsigned long int) shdr->sh_info, + (unsigned int) shdr->sh_link, + elf_strptr (ebl->elf, shstrndx, + gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), + &glink)->sh_name)); + + fputs_unlocked (class == ELFCLASS32 + ? gettext ("\ + Num: Value Size Type Bind Vis Ndx Name\n") + : gettext ("\ + Num: Value Size Type Bind Vis Ndx Name\n"), + stdout); + + for (cnt = 0; cnt < nsyms; ++cnt) + { + char typebuf[64]; + char bindbuf[64]; + char scnbuf[64]; + Elf32_Word xndx; + GElf_Sym sym_mem; + GElf_Sym *sym = gelf_getsymshndx (data, xndx_data, cnt, &sym_mem, &xndx); + + if (sym == NULL) + continue; + + /* Determine the real section index. */ + if (sym->st_shndx != SHN_XINDEX) + xndx = sym->st_shndx; + + printf (gettext ("\ +%5u: %0*" PRIx64 " %6" PRId64 " %-7s %-6s %-9s %6s %s"), + cnt, + class == ELFCLASS32 ? 8 : 16, + sym->st_value, + sym->st_size, + ebl_symbol_type_name (ebl, GELF_ST_TYPE (sym->st_info), + typebuf, sizeof (typebuf)), + ebl_symbol_binding_name (ebl, GELF_ST_BIND (sym->st_info), + bindbuf, sizeof (bindbuf)), + get_visibility_type (GELF_ST_VISIBILITY (sym->st_other)), + ebl_section_name (ebl, sym->st_shndx, xndx, scnbuf, + sizeof (scnbuf), NULL, shnum), + elf_strptr (ebl->elf, shdr->sh_link, sym->st_name)); + + if (versym_data != NULL) + { + /* Get the version information. */ + GElf_Versym versym_mem; + GElf_Versym *versym; + + versym = gelf_getversym (versym_data, cnt, &versym_mem); + + if (versym != NULL && ((*versym & 0x8000) != 0 || *versym > 1)) + { + bool is_nobits = false; + bool check_def = xndx != SHN_UNDEF; + + if (xndx < SHN_LORESERVE || sym->st_shndx == SHN_XINDEX) + { + GElf_Shdr symshdr_mem; + GElf_Shdr *symshdr = + gelf_getshdr (elf_getscn (ebl->elf, xndx), &symshdr_mem); + + is_nobits = (symshdr != NULL + && symshdr->sh_type == SHT_NOBITS); + } + + if (is_nobits || ! check_def) + { + /* We must test both. */ + GElf_Verneed verneed_mem; + GElf_Verneed *verneed; + GElf_Vernaux vernaux_mem; + GElf_Vernaux *vernaux = NULL; + size_t vn_offset = 0; + + verneed = gelf_getverneed (verneed_data, 0, &verneed_mem); + while (verneed != NULL) + { + size_t vna_offset = vn_offset; + + vernaux = gelf_getvernaux (verneed_data, + vna_offset += verneed->vn_aux, + &vernaux_mem); + while (vernaux != NULL + && vernaux->vna_other != *versym + && vernaux->vna_next != 0) + { + /* Update the offset. */ + vna_offset += vernaux->vna_next; + + vernaux = (vernaux->vna_next == 0 + ? NULL + : gelf_getvernaux (verneed_data, + vna_offset, + &vernaux_mem)); + } + + /* Check whether we found the version. */ + if (vernaux != NULL && vernaux->vna_other == *versym) + /* Found it. */ + break; + + vn_offset += verneed->vn_next; + verneed = (verneed->vn_next == 0 + ? NULL + : gelf_getverneed (verneed_data, vn_offset, + &verneed_mem)); + } + + if (vernaux != NULL && vernaux->vna_other == *versym) + { + printf ("@%s (%u)", + elf_strptr (ebl->elf, verneed_stridx, + vernaux->vna_name), + (unsigned int) vernaux->vna_other); + check_def = 0; + } + else if (! is_nobits) + error (0, 0, gettext ("bad dynamic symbol")); + else + check_def = 1; + } + + if (check_def && *versym != 0x8001) + { + /* We must test both. */ + GElf_Verdef verdef_mem; + GElf_Verdef *verdef; + size_t vd_offset = 0; + + verdef = gelf_getverdef (verdef_data, 0, &verdef_mem); + while (verdef != NULL) + { + if (verdef->vd_ndx == (*versym & 0x7fff)) + /* Found the definition. */ + break; + + vd_offset += verdef->vd_next; + verdef = (verdef->vd_next == 0 + ? NULL + : gelf_getverdef (verdef_data, vd_offset, + &verdef_mem)); + } + + if (verdef != NULL) + { + GElf_Verdaux verdaux_mem; + GElf_Verdaux *verdaux; + + verdaux = gelf_getverdaux (verdef_data, + vd_offset + verdef->vd_aux, + &verdaux_mem); + + if (verdaux != NULL) + printf ((*versym & 0x8000) ? "@%s" : "@@%s", + elf_strptr (ebl->elf, verdef_stridx, + verdaux->vda_name)); + } + } + } + } + + putchar ('\n'); + } +} + + +/* Print version information. */ +static void +print_verinfo (Ebl *ebl) +{ + /* Find the version information sections. For this we have to + search through the section table. */ + Elf_Scn *scn = NULL; + + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + /* Handle the section if it is part of the versioning handling. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr != NULL) + { + if (shdr->sh_type == SHT_GNU_verneed) + handle_verneed (ebl, scn, shdr); + else if (shdr->sh_type == SHT_GNU_verdef) + handle_verdef (ebl, scn, shdr); + else if (shdr->sh_type == SHT_GNU_versym) + handle_versym (ebl, scn, shdr); + } + } +} + + +static const char * +get_ver_flags (unsigned int flags) +{ + static char buf[32]; + char *endp; + + if (flags == 0) + return gettext ("none"); + + if (flags & VER_FLG_BASE) + endp = stpcpy (buf, "BASE "); + else + endp = buf; + + if (flags & VER_FLG_WEAK) + { + if (endp != buf) + endp = stpcpy (endp, "| "); + + endp = stpcpy (endp, "WEAK "); + } + + if (flags & ~(VER_FLG_BASE | VER_FLG_WEAK)) + { + strncpy (endp, gettext ("| "), buf + sizeof (buf) - endp); + buf[sizeof (buf) - 1] = '\0'; + } + + return buf; +} + + +static void +handle_verneed (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr) +{ + Elf_Data *data; + int class = gelf_getclass (ebl->elf); + GElf_Shdr glink; + int cnt; + unsigned int offset; + size_t shstrndx; + + /* Get the data of the section. */ + data = elf_getdata (scn, NULL); + if (data == NULL) + return; + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + printf (ngettext ("\ +\nVersion needs section [%2u] '%s' contains %d entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", + "\ +\nVersion needs section [%2u] '%s' contains %d entries:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", + shdr->sh_info), + (unsigned int) elf_ndxscn (scn), + elf_strptr (ebl->elf, shstrndx, shdr->sh_name), shdr->sh_info, + class == ELFCLASS32 ? 10 : 18, shdr->sh_addr, + shdr->sh_offset, + (unsigned int) shdr->sh_link, + elf_strptr (ebl->elf, shstrndx, + gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), + &glink)->sh_name)); + + offset = 0; + for (cnt = shdr->sh_info; --cnt >= 0; ) + { + GElf_Verneed needmem; + GElf_Verneed *need; + unsigned int auxoffset; + int cnt2; + + /* Get the data at the next offset. */ + need = gelf_getverneed (data, offset, &needmem); + if (need == NULL) + break; + + printf (gettext (" %#06x: Version: %hu File: %s Cnt: %hu\n"), + offset, (unsigned short int) need->vn_version, + elf_strptr (ebl->elf, shdr->sh_link, need->vn_file), + (unsigned short int) need->vn_cnt); + + auxoffset = offset + need->vn_aux; + for (cnt2 = need->vn_cnt; --cnt2 >= 0; ) + { + GElf_Vernaux auxmem; + GElf_Vernaux *aux; + + aux = gelf_getvernaux (data, auxoffset, &auxmem); + if (aux == NULL) + break; + + printf (gettext (" %#06x: Name: %s Flags: %s Version: %hu\n"), + auxoffset, + elf_strptr (ebl->elf, shdr->sh_link, aux->vna_name), + get_ver_flags (aux->vna_flags), + (unsigned short int) aux->vna_other); + + auxoffset += aux->vna_next; + } + + /* Find the next offset. */ + offset += need->vn_next; + } +} + + +static void +handle_verdef (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr) +{ + Elf_Data *data; + int class = gelf_getclass (ebl->elf); + GElf_Shdr glink; + int cnt; + unsigned int offset; + size_t shstrndx; + + /* Get the data of the section. */ + data = elf_getdata (scn, NULL); + if (data == NULL) + return; + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + printf (ngettext ("\ +\nVersion definition section [%2u] '%s' contains %d entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", + "\ +\nVersion definition section [%2u] '%s' contains %d entries:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", + shdr->sh_info), + (unsigned int) elf_ndxscn (scn), + elf_strptr (ebl->elf, shstrndx, shdr->sh_name), + shdr->sh_info, + class == ELFCLASS32 ? 10 : 18, shdr->sh_addr, + shdr->sh_offset, + (unsigned int) shdr->sh_link, + elf_strptr (ebl->elf, shstrndx, + gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), + &glink)->sh_name)); + + offset = 0; + for (cnt = shdr->sh_info; --cnt >= 0; ) + { + GElf_Verdef defmem; + GElf_Verdef *def; + GElf_Verdaux auxmem; + GElf_Verdaux *aux; + unsigned int auxoffset; + int cnt2; + + /* Get the data at the next offset. */ + def = gelf_getverdef (data, offset, &defmem); + if (def == NULL) + break; + + auxoffset = offset + def->vd_aux; + aux = gelf_getverdaux (data, auxoffset, &auxmem); + if (aux == NULL) + break; + + printf (gettext ("\ + %#06x: Version: %hd Flags: %s Index: %hd Cnt: %hd Name: %s\n"), + offset, def->vd_version, + get_ver_flags (def->vd_flags), + def->vd_ndx, + def->vd_cnt, + elf_strptr (ebl->elf, shdr->sh_link, aux->vda_name)); + + auxoffset += aux->vda_next; + for (cnt2 = 1; cnt2 < def->vd_cnt; ++cnt2) + { + aux = gelf_getverdaux (data, auxoffset, &auxmem); + if (aux == NULL) + break; + + printf (gettext (" %#06x: Parent %d: %s\n"), + auxoffset, cnt2, + elf_strptr (ebl->elf, shdr->sh_link, aux->vda_name)); + + auxoffset += aux->vda_next; + } + + /* Find the next offset. */ + offset += def->vd_next; + } +} + + +static void +handle_versym (Ebl *ebl, Elf_Scn *scn, GElf_Shdr *shdr) +{ + Elf_Data *data; + int class = gelf_getclass (ebl->elf); + Elf_Scn *verscn; + GElf_Shdr glink; + Elf_Scn *defscn; + Elf_Scn *needscn; + const char **vername; + const char **filename; + size_t nvername; + unsigned int cnt; + size_t shstrndx; + + /* Get the data of the section. */ + data = elf_getdata (scn, NULL); + if (data == NULL) + return; + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + /* We have to find the version definition section and extract the + version names. */ + defscn = NULL; + needscn = NULL; + + verscn = NULL; + while ((verscn = elf_nextscn (ebl->elf, verscn)) != NULL) + { + GElf_Shdr vershdr_mem; + GElf_Shdr *vershdr = gelf_getshdr (verscn, &vershdr_mem); + + if (vershdr != NULL) + { + if (vershdr->sh_type == SHT_GNU_verdef) + defscn = verscn; + else if (vershdr->sh_type == SHT_GNU_verneed) + needscn = verscn; + } + } + + if (defscn != NULL || needscn != NULL) + { + /* We have a version information (better should have). Now get + the version names. First find the maximum version number. */ + nvername = 0; + if (defscn != NULL) + { + /* Run through the version definitions and find the highest + index. */ + unsigned int offset = 0; + Elf_Data *defdata; + GElf_Shdr defshdrmem; + GElf_Shdr *defshdr; + + defdata = elf_getdata (defscn, NULL); + if (defdata == NULL) + return; + + defshdr = gelf_getshdr (defscn, &defshdrmem); + if (defshdr == NULL) + return; + + for (cnt = 0; cnt < defshdr->sh_info; ++cnt) + { + GElf_Verdef defmem; + GElf_Verdef *def; + + /* Get the data at the next offset. */ + def = gelf_getverdef (defdata, offset, &defmem); + if (def == NULL) + break; + + nvername = MAX (nvername, (size_t) (def->vd_ndx & 0x7fff)); + + offset += def->vd_next; + } + } + if (needscn != NULL) + { + unsigned int offset = 0; + Elf_Data *needdata; + GElf_Shdr needshdrmem; + GElf_Shdr *needshdr; + + needdata = elf_getdata (needscn, NULL); + if (needdata == NULL) + return; + + needshdr = gelf_getshdr (needscn, &needshdrmem); + if (needshdr == NULL) + return; + + for (cnt = 0; cnt < needshdr->sh_info; ++cnt) + { + GElf_Verneed needmem; + GElf_Verneed *need; + unsigned int auxoffset; + int cnt2; + + /* Get the data at the next offset. */ + need = gelf_getverneed (needdata, offset, &needmem); + if (need == NULL) + break; + + /* Run through the auxiliary entries. */ + auxoffset = offset + need->vn_aux; + for (cnt2 = need->vn_cnt; --cnt2 >= 0; ) + { + GElf_Vernaux auxmem; + GElf_Vernaux *aux; + + aux = gelf_getvernaux (needdata, auxoffset, &auxmem); + if (aux == NULL) + break; + + nvername = MAX (nvername, + (size_t) (aux->vna_other & 0x7fff)); + + auxoffset += aux->vna_next; + } + + offset += need->vn_next; + } + } + + /* This is the number of versions we know about. */ + ++nvername; + + /* Allocate the array. */ + vername = (const char **) alloca (nvername * sizeof (const char *)); + filename = (const char **) alloca (nvername * sizeof (const char *)); + + /* Run through the data structures again and collect the strings. */ + if (defscn != NULL) + { + /* Run through the version definitions and find the highest + index. */ + unsigned int offset = 0; + Elf_Data *defdata; + GElf_Shdr defshdrmem; + GElf_Shdr *defshdr; + + defdata = elf_getdata (defscn, NULL); + if (defdata == NULL) + return; + + defshdr = gelf_getshdr (defscn, &defshdrmem); + if (defshdr == NULL) + return; + + for (cnt = 0; cnt < defshdr->sh_info; ++cnt) + { + GElf_Verdef defmem; + GElf_Verdef *def; + GElf_Verdaux auxmem; + GElf_Verdaux *aux; + + /* Get the data at the next offset. */ + def = gelf_getverdef (defdata, offset, &defmem); + if (def == NULL) + break; + + aux = gelf_getverdaux (defdata, offset + def->vd_aux, &auxmem); + if (aux == NULL) + break; + + vername[def->vd_ndx & 0x7fff] + = elf_strptr (ebl->elf, defshdr->sh_link, aux->vda_name); + filename[def->vd_ndx & 0x7fff] = NULL; + + offset += def->vd_next; + } + } + if (needscn != NULL) + { + unsigned int offset = 0; + Elf_Data *needdata; + GElf_Shdr needshdrmem; + GElf_Shdr *needshdr; + + needdata = elf_getdata (needscn, NULL); + if (needdata == NULL) + return; + + needshdr = gelf_getshdr (needscn, &needshdrmem); + if (needshdr == NULL) + return; + + for (cnt = 0; cnt < needshdr->sh_info; ++cnt) + { + GElf_Verneed needmem; + GElf_Verneed *need; + unsigned int auxoffset; + int cnt2; + + /* Get the data at the next offset. */ + need = gelf_getverneed (needdata, offset, &needmem); + if (need == NULL) + break; + + /* Run through the auxiliary entries. */ + auxoffset = offset + need->vn_aux; + for (cnt2 = need->vn_cnt; --cnt2 >= 0; ) + { + GElf_Vernaux auxmem; + GElf_Vernaux *aux; + + aux = gelf_getvernaux (needdata, auxoffset, &auxmem); + if (aux == NULL) + break; + + vername[aux->vna_other & 0x7fff] + = elf_strptr (ebl->elf, needshdr->sh_link, aux->vna_name); + filename[aux->vna_other & 0x7fff] + = elf_strptr (ebl->elf, needshdr->sh_link, need->vn_file); + + auxoffset += aux->vna_next; + } + + offset += need->vn_next; + } + } + } + else + { + vername = NULL; + nvername = 1; + filename = NULL; + } + + /* Print the header. */ + printf (ngettext ("\ +\nVersion symbols section [%2u] '%s' contains %d entry:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'", + "\ +\nVersion symbols section [%2u] '%s' contains %d entries:\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'", + shdr->sh_size / shdr->sh_entsize), + (unsigned int) elf_ndxscn (scn), + elf_strptr (ebl->elf, shstrndx, shdr->sh_name), + (int) (shdr->sh_size / shdr->sh_entsize), + class == ELFCLASS32 ? 10 : 18, shdr->sh_addr, + shdr->sh_offset, + (unsigned int) shdr->sh_link, + elf_strptr (ebl->elf, shstrndx, + gelf_getshdr (elf_getscn (ebl->elf, shdr->sh_link), + &glink)->sh_name)); + + /* Now we can finally look at the actual contents of this section. */ + for (cnt = 0; cnt < shdr->sh_size / shdr->sh_entsize; ++cnt) + { + GElf_Versym symmem; + GElf_Versym *sym; + ssize_t n; + + if (cnt % 2 == 0) + printf ("\n %4d:", cnt); + + sym = gelf_getversym (data, cnt, &symmem); + if (sym == NULL) + break; + + switch (*sym) + { + case 0: + fputs_unlocked (gettext (" 0 *local* "), + stdout); + break; + + case 1: + fputs_unlocked (gettext (" 1 *global* "), + stdout); + break; + + default: + n = printf ("%4d%c%s", + *sym & 0x7fff, *sym & 0x8000 ? 'h' : ' ', + (unsigned int) (*sym & 0x7fff) < nvername + ? vername[*sym & 0x7fff] : "???"); + if ((unsigned int) (*sym & 0x7fff) < nvername + && filename[*sym & 0x7fff] != NULL) + n += printf ("(%s)", filename[*sym & 0x7fff]); + printf ("%*s", MAX (0, 33 - (int) n), " "); + break; + } + } + putchar ('\n'); +} + + +static void +handle_hash (Ebl *ebl) +{ + /* Find the symbol table(s). For this we have to search through the + section table. */ + Elf_Scn *scn = NULL; + size_t shstrndx; + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + /* Handle the section if it is a symbol table. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr != NULL && shdr->sh_type == SHT_HASH) + { + Elf_Data *data = elf_getdata (scn, NULL); + Elf32_Word nbucket; + Elf32_Word nchain; + Elf32_Word *bucket; + Elf32_Word *chain; + uint32_t *lengths; + uint32_t *counts; + Elf32_Word cnt; + Elf32_Word maxlength = 0; + Elf32_Word nsyms = 0; + uint64_t nzero_counts = 0; + GElf_Shdr glink; + + if (data == NULL) + { + error (0, 0, gettext ("cannot get data for section %d: %s"), + (int) elf_ndxscn (scn), elf_errmsg (-1)); + continue; + } + + nbucket = ((Elf32_Word *) data->d_buf)[0]; + nchain = ((Elf32_Word *) data->d_buf)[1]; + bucket = &((Elf32_Word *) data->d_buf)[2]; + chain = &((Elf32_Word *) data->d_buf)[2 + nbucket]; + + printf (ngettext ("\ +\nHistogram for bucket list length in section [%2u] '%s' (total of %d bucket):\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", + "\ +\nHistogram for bucket list length in section [%2u] '%s' (total of %d buckets):\n Addr: %#0*" PRIx64 " Offset: %#08" PRIx64 " Link to section: [%2u] '%s'\n", + nbucket), + (unsigned int) elf_ndxscn (scn), + elf_strptr (ebl->elf, shstrndx, shdr->sh_name), + (int) nbucket, + gelf_getclass (ebl->elf) == ELFCLASS32 ? 10 : 18, + shdr->sh_addr, + shdr->sh_offset, + (unsigned int) shdr->sh_link, + elf_strptr (ebl->elf, shstrndx, + gelf_getshdr (elf_getscn (ebl->elf, + shdr->sh_link), + &glink)->sh_name)); + + lengths = (uint32_t *) xcalloc (nbucket, sizeof (uint32_t)); + + for (cnt = 0; cnt < nbucket; ++cnt) + if (bucket[cnt] != 0) + { + Elf32_Word inner; + + inner = bucket[cnt]; + while (inner > 0 && inner < nchain) + { + ++nsyms; + if (maxlength < ++lengths[cnt]) + ++maxlength; + + inner = chain[inner]; + } + } + + counts = (uint32_t *) xcalloc (maxlength + 1, sizeof (uint32_t)); + + for (cnt = 0; cnt < nbucket; ++cnt) + ++counts[lengths[cnt]]; + + if (nbucket > 0) + { + uint64_t success = 0; + Elf32_Word acc; + + puts (gettext (" Length Number % of total Coverage")); + printf (gettext (" 0 %6" PRIu32 " %5.1f%%\n"), + counts[0], (counts[0] * 100.0) / nbucket); + + for (cnt = 1; cnt <= maxlength; ++cnt) + { + nzero_counts += counts[cnt] * cnt; + printf (gettext ("\ +%7d %6" PRIu32 " %5.1f%% %5.1f%%\n"), + (int) cnt, + counts[cnt], (counts[cnt] * 100.0) / nbucket, + (nzero_counts * 100.0) / nsyms); + } + + acc = 0; + for (cnt = 1; cnt <= maxlength; ++cnt) + { + acc += cnt; + success += counts[cnt] * acc; + } + + printf (gettext ("\ + Average number of tests: successful lookup: %f\n\ + unsuccessful lookup: %f\n"), + (double) success / (double) nzero_counts, + (double) nzero_counts / (double) nbucket); + } + + free (counts); + free (lengths); + } + } +} + + +static void +print_liblist (Ebl *ebl) +{ + /* Find the library list sections. For this we have to search + through the section table. */ + Elf_Scn *scn = NULL; + + /* Get the section header string table index. */ + size_t shstrndx; + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr != NULL && shdr->sh_type == SHT_GNU_LIBLIST) + { + int nentries = shdr->sh_size / shdr->sh_entsize; + printf (ngettext ("\ +\nLibrary list section [%2zu] '%s' at offset %#0" PRIx64 " contains %d entry:\n", + "\ +\nLibrary list section [%2zu] '%s' at offset %#0" PRIx64 " contains %d entries:\n", + nentries), + elf_ndxscn (scn), + elf_strptr (ebl->elf, shstrndx, shdr->sh_name), + shdr->sh_offset, + nentries); + + Elf_Data *data = elf_getdata (scn, NULL); + if (data == NULL) + return; + + puts (gettext ("\ + Library Time Stamp Checksum Version Flags")); + + for (int cnt = 0; cnt < nentries; ++cnt) + { + GElf_Lib lib_mem; + GElf_Lib *lib = gelf_getlib (data, cnt, &lib_mem); + if (lib == NULL) + continue; + + time_t t = (time_t) lib->l_time_stamp; + struct tm *tm = gmtime (&t); + if (tm == NULL) + continue; + + printf (" [%2d] %-29s %04u-%02u-%02uT%02u:%02u:%02u %08x %-7u %u\n", + cnt, elf_strptr (ebl->elf, shdr->sh_link, lib->l_name), + tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec, + (unsigned int) lib->l_checksum, + (unsigned int) lib->l_version, + (unsigned int) lib->l_flags); + } + } + } +} + + +static const char * +dwarf_tag_string (unsigned int tag) +{ + static const char *known_tags[] = + { + [DW_TAG_array_type] = "array_type", + [DW_TAG_class_type] = "class_type", + [DW_TAG_entry_point] = "entry_point", + [DW_TAG_enumeration_type] = "enumeration_type", + [DW_TAG_formal_parameter] = "formal_parameter", + [DW_TAG_imported_declaration] = "imported_declaration", + [DW_TAG_label] = "label", + [DW_TAG_lexical_block] = "lexical_block", + [DW_TAG_member] = "member", + [DW_TAG_pointer_type] = "pointer_type", + [DW_TAG_reference_type] = "reference_type", + [DW_TAG_compile_unit] = "compile_unit", + [DW_TAG_string_type] = "string_type", + [DW_TAG_structure_type] = "structure_type", + [DW_TAG_subroutine_type] = "subroutine_type", + [DW_TAG_typedef] = "typedef", + [DW_TAG_union_type] = "union_type", + [DW_TAG_unspecified_parameters] = "unspecified_parameters", + [DW_TAG_variant] = "variant", + [DW_TAG_common_block] = "common_block", + [DW_TAG_common_inclusion] = "common_inclusion", + [DW_TAG_inheritance] = "inheritance", + [DW_TAG_inlined_subroutine] = "inlined_subroutine", + [DW_TAG_module] = "module", + [DW_TAG_ptr_to_member_type] = "ptr_to_member_type", + [DW_TAG_set_type] = "set_type", + [DW_TAG_subrange_type] = "subrange_type", + [DW_TAG_with_stmt] = "with_stmt", + [DW_TAG_access_declaration] = "access_declaration", + [DW_TAG_base_type] = "base_type", + [DW_TAG_catch_block] = "catch_block", + [DW_TAG_const_type] = "const_type", + [DW_TAG_constant] = "constant", + [DW_TAG_enumerator] = "enumerator", + [DW_TAG_file_type] = "file_type", + [DW_TAG_friend] = "friend", + [DW_TAG_namelist] = "namelist", + [DW_TAG_namelist_item] = "namelist_item", + [DW_TAG_packed_type] = "packed_type", + [DW_TAG_subprogram] = "subprogram", + [DW_TAG_template_type_param] = "template_type_param", + [DW_TAG_template_value_param] = "template_value_param", + [DW_TAG_thrown_type] = "thrown_type", + [DW_TAG_try_block] = "try_block", + [DW_TAG_variant_part] = "variant_part", + [DW_TAG_variable] = "variable", + [DW_TAG_volatile_type] = "volatile_type", + [DW_TAG_dwarf_procedure] = "dwarf_procedure", + [DW_TAG_restrict_type] = "restrict_type", + [DW_TAG_interface_type] = "interface_type", + [DW_TAG_namespace] = "namespace", + [DW_TAG_imported_module] = "imported_module", + [DW_TAG_unspecified_type] = "unspecified_type", + [DW_TAG_partial_unit] = "partial_unit", + [DW_TAG_imported_unit] = "imported_unit", + [DW_TAG_unspecified_type] = "unspecified_type", + [DW_TAG_partial_unit] = "partial_unit", + [DW_TAG_imported_unit] = "imported_unit", + [DW_TAG_mutable_type] = "mutable_type", + }; + const unsigned int nknown_tags = (sizeof (known_tags) + / sizeof (known_tags[0])); + static char buf[40]; + const char *result = NULL; + + if (tag < nknown_tags) + result = known_tags[tag]; + + if (result == NULL) + /* There are a few known extensions. */ + switch (tag) + { + case DW_TAG_MIPS_loop: + result = "MIPS_loop"; + break; + + case DW_TAG_format_label: + result = "format_label"; + break; + + case DW_TAG_function_template: + result = "function_template"; + break; + + case DW_TAG_class_template: + result = "class_template"; + break; + + default: + if (tag < DW_TAG_lo_user) + snprintf (buf, sizeof buf, gettext ("unknown tag %hx"), tag); + else + snprintf (buf, sizeof buf, gettext ("unknown user tag %hx"), tag); + result = buf; + break; + } + + return result; +} + + +static const char * +dwarf_attr_string (unsigned int attrnum) +{ + static const char *known_attrs[] = + { + [DW_AT_sibling] = "sibling", + [DW_AT_location] = "location", + [DW_AT_name] = "name", + [DW_AT_ordering] = "ordering", + [DW_AT_subscr_data] = "subscr_data", + [DW_AT_byte_size] = "byte_size", + [DW_AT_bit_offset] = "bit_offset", + [DW_AT_bit_size] = "bit_size", + [DW_AT_element_list] = "element_list", + [DW_AT_stmt_list] = "stmt_list", + [DW_AT_low_pc] = "low_pc", + [DW_AT_high_pc] = "high_pc", + [DW_AT_language] = "language", + [DW_AT_member] = "member", + [DW_AT_discr] = "discr", + [DW_AT_discr_value] = "discr_value", + [DW_AT_visibility] = "visibility", + [DW_AT_import] = "import", + [DW_AT_string_length] = "string_length", + [DW_AT_common_reference] = "common_reference", + [DW_AT_comp_dir] = "comp_dir", + [DW_AT_const_value] = "const_value", + [DW_AT_containing_type] = "containing_type", + [DW_AT_default_value] = "default_value", + [DW_AT_inline] = "inline", + [DW_AT_is_optional] = "is_optional", + [DW_AT_lower_bound] = "lower_bound", + [DW_AT_producer] = "producer", + [DW_AT_prototyped] = "prototyped", + [DW_AT_return_addr] = "return_addr", + [DW_AT_start_scope] = "start_scope", + [DW_AT_stride_size] = "stride_size", + [DW_AT_upper_bound] = "upper_bound", + [DW_AT_abstract_origin] = "abstract_origin", + [DW_AT_accessibility] = "accessibility", + [DW_AT_address_class] = "address_class", + [DW_AT_artificial] = "artificial", + [DW_AT_base_types] = "base_types", + [DW_AT_calling_convention] = "calling_convention", + [DW_AT_count] = "count", + [DW_AT_data_member_location] = "data_member_location", + [DW_AT_decl_column] = "decl_column", + [DW_AT_decl_file] = "decl_file", + [DW_AT_decl_line] = "decl_line", + [DW_AT_declaration] = "declaration", + [DW_AT_discr_list] = "discr_list", + [DW_AT_encoding] = "encoding", + [DW_AT_external] = "external", + [DW_AT_frame_base] = "frame_base", + [DW_AT_friend] = "friend", + [DW_AT_identifier_case] = "identifier_case", + [DW_AT_macro_info] = "macro_info", + [DW_AT_namelist_items] = "namelist_items", + [DW_AT_priority] = "priority", + [DW_AT_segment] = "segment", + [DW_AT_specification] = "specification", + [DW_AT_static_link] = "static_link", + [DW_AT_type] = "type", + [DW_AT_use_location] = "use_location", + [DW_AT_variable_parameter] = "variable_parameter", + [DW_AT_virtuality] = "virtuality", + [DW_AT_vtable_elem_location] = "vtable_elem_location", + [DW_AT_allocated] = "allocated", + [DW_AT_associated] = "associated", + [DW_AT_data_location] = "data_location", + [DW_AT_stride] = "stride", + [DW_AT_entry_pc] = "entry_pc", + [DW_AT_use_UTF8] = "use_UTF8", + [DW_AT_extension] = "extension", + [DW_AT_ranges] = "ranges", + [DW_AT_trampoline] = "trampoline", + [DW_AT_call_column] = "call_column", + [DW_AT_call_file] = "call_file", + [DW_AT_call_line] = "call_line", + [DW_AT_description] = "description" + }; + const unsigned int nknown_attrs = (sizeof (known_attrs) + / sizeof (known_attrs[0])); + static char buf[40]; + const char *result = NULL; + + if (attrnum < nknown_attrs) + result = known_attrs[attrnum]; + + if (result == NULL) + /* There are a few known extensions. */ + switch (attrnum) + { + case DW_AT_MIPS_fde: + result = "MIPS_fde"; + break; + + case DW_AT_MIPS_loop_begin: + result = "MIPS_loop_begin"; + break; + + case DW_AT_MIPS_tail_loop_begin: + result = "MIPS_tail_loop_begin"; + break; + + case DW_AT_MIPS_epilog_begin: + result = "MIPS_epilog_begin"; + break; + + case DW_AT_MIPS_loop_unroll_factor: + result = "MIPS_loop_unroll_factor"; + break; + + case DW_AT_MIPS_software_pipeline_depth: + result = "MIPS_software_pipeline_depth"; + break; + + case DW_AT_MIPS_linkage_name: + result = "MIPS_linkage_name"; + break; + + case DW_AT_MIPS_stride: + result = "MIPS_stride"; + break; + + case DW_AT_MIPS_abstract_name: + result = "MIPS_abstract_name"; + break; + + case DW_AT_MIPS_clone_origin: + result = "MIPS_clone_origin"; + break; + + case DW_AT_MIPS_has_inlines: + result = "MIPS_has_inlines"; + break; + + case DW_AT_MIPS_stride_byte: + result = "MIPS_stride_byte"; + break; + + case DW_AT_MIPS_stride_elem: + result = "MIPS_stride_elem"; + break; + + case DW_AT_MIPS_ptr_dopetype: + result = "MIPS_ptr_dopetype"; + break; + + case DW_AT_MIPS_allocatable_dopetype: + result = "MIPS_allocatable_dopetype"; + break; + + case DW_AT_MIPS_assumed_shape_dopetype: + result = "MIPS_assumed_shape_dopetype"; + break; + + case DW_AT_MIPS_assumed_size: + result = "MIPS_assumed_size"; + break; + + case DW_AT_sf_names: + result = "sf_names"; + break; + + case DW_AT_src_info: + result = "src_info"; + break; + + case DW_AT_mac_info: + result = "mac_info"; + break; + + case DW_AT_src_coords: + result = "src_coords"; + break; + + case DW_AT_body_begin: + result = "body_begin"; + break; + + case DW_AT_body_end: + result = "body_end"; + break; + + default: + if (attrnum < DW_AT_lo_user) + snprintf (buf, sizeof buf, gettext ("unknown attribute %hx"), + attrnum); + else + snprintf (buf, sizeof buf, gettext ("unknown user attribute %hx"), + attrnum); + result = buf; + break; + } + + return result; +} + + +static const char * +dwarf_form_string (unsigned int form) +{ + static const char *known_forms[] = + { + [DW_FORM_addr] = "addr", + [DW_FORM_block2] = "block2", + [DW_FORM_block4] = "block4", + [DW_FORM_data2] = "data2", + [DW_FORM_data4] = "data4", + [DW_FORM_data8] = "data8", + [DW_FORM_string] = "string", + [DW_FORM_block] = "block", + [DW_FORM_block1] = "block1", + [DW_FORM_data1] = "data1", + [DW_FORM_flag] = "flag", + [DW_FORM_sdata] = "sdata", + [DW_FORM_strp] = "strp", + [DW_FORM_udata] = "udata", + [DW_FORM_ref_addr] = "ref_addr", + [DW_FORM_ref1] = "ref1", + [DW_FORM_ref2] = "ref2", + [DW_FORM_ref4] = "ref4", + [DW_FORM_ref8] = "ref8", + [DW_FORM_ref_udata] = "ref_udata", + [DW_FORM_indirect] = "indirect" + }; + const unsigned int nknown_forms = (sizeof (known_forms) + / sizeof (known_forms[0])); + static char buf[40]; + const char *result = NULL; + + if (form < nknown_forms) + result = known_forms[form]; + + if (result == NULL) + snprintf (buf, sizeof buf, gettext ("unknown form %" PRIx64), + (uint64_t) form); + + return result; +} + + +static const char * +dwarf_lang_string (unsigned int lang) +{ + static const char *known[] = + { + [DW_LANG_C89] = "ISO C89", + [DW_LANG_C] = "C", + [DW_LANG_Ada83] = "Ada83", + [DW_LANG_C_plus_plus ] = "C++", + [DW_LANG_Cobol74] = "Cobol74", + [DW_LANG_Cobol85] = "Cobol85", + [DW_LANG_Fortran77] = "Fortran77", + [DW_LANG_Fortran90] = "Fortran90", + [DW_LANG_Pascal83] = "Pascal83", + [DW_LANG_Modula2] = "Modula2", + [DW_LANG_Java] = "Java", + [DW_LANG_C99] = "ISO C99", + [DW_LANG_Ada95] = "Ada95", + [DW_LANG_Fortran95] = "Fortran95", + [DW_LANG_PL1] = "PL1" + }; + + if (lang < sizeof (known) / sizeof (known[0])) + return known[lang]; + else if (lang == DW_LANG_Mips_Assembler) + /* This language tag is used for assembler in general. */ + return "Assembler"; + + if (lang >= DW_LANG_lo_user && lang <= DW_LANG_hi_user) + { + static char buf[30]; + snprintf (buf, sizeof (buf), "lo_user+%u", lang - DW_LANG_lo_user); + return buf; + } + + return "???"; +} + + +static const char * +dwarf_inline_string (unsigned int code) +{ + static const char *known[] = + { + [DW_INL_not_inlined] = "not_inlined", + [DW_INL_inlined] = "inlined", + [DW_INL_declared_not_inlined] = "declared_not_inlined", + [DW_INL_declared_inlined] = "declared_inlined" + }; + + if (code < sizeof (known) / sizeof (known[0])) + return known[code]; + + return "???"; +} + + +static const char * +dwarf_encoding_string (unsigned int code) +{ + static const char *known[] = + { + [DW_ATE_void] = "void", + [DW_ATE_address] = "address", + [DW_ATE_boolean] = "boolean", + [DW_ATE_complex_float] = "complex_float", + [DW_ATE_float] = "float", + [DW_ATE_signed] = "signed", + [DW_ATE_signed_char] = "signed_char", + [DW_ATE_unsigned] = "unsigned", + [DW_ATE_unsigned_char] = "unsigned_char", + [DW_ATE_imaginary_float] = "imaginary_float" + }; + + if (code < sizeof (known) / sizeof (known[0])) + return known[code]; + + if (code >= DW_ATE_lo_user && code <= DW_ATE_hi_user) + { + static char buf[30]; + snprintf (buf, sizeof (buf), "lo_user+%u", code - DW_ATE_lo_user); + return buf; + } + + return "???"; +} + + +static const char * +dwarf_access_string (unsigned int code) +{ + static const char *known[] = + { + [DW_ACCESS_public] = "public", + [DW_ACCESS_protected] = "protected", + [DW_ACCESS_private] = "private" + }; + + if (code < sizeof (known) / sizeof (known[0])) + return known[code]; + + return "???"; +} + + +static const char * +dwarf_visibility_string (unsigned int code) +{ + static const char *known[] = + { + [DW_VIS_local] = "local", + [DW_VIS_exported] = "exported", + [DW_VIS_qualified] = "qualified" + }; + + if (code < sizeof (known) / sizeof (known[0])) + return known[code]; + + return "???"; +} + + +static const char * +dwarf_virtuality_string (unsigned int code) +{ + static const char *known[] = + { + [DW_VIRTUALITY_none] = "none", + [DW_VIRTUALITY_virtual] = "virtual", + [DW_VIRTUALITY_pure_virtual] = "pure_virtual" + }; + + if (code < sizeof (known) / sizeof (known[0])) + return known[code]; + + return "???"; +} + + +static const char * +dwarf_identifier_case_string (unsigned int code) +{ + static const char *known[] = + { + [DW_ID_case_sensitive] = "sensitive", + [DW_ID_up_case] = "up_case", + [DW_ID_down_case] = "down_case", + [DW_ID_case_insensitive] = "insensitive" + }; + + if (code < sizeof (known) / sizeof (known[0])) + return known[code]; + + return "???"; +} + + +static const char * +dwarf_calling_convention_string (unsigned int code) +{ + static const char *known[] = + { + [DW_CC_normal] = "normal", + [DW_CC_program] = "program", + [DW_CC_nocall] = "nocall", + }; + + if (code < sizeof (known) / sizeof (known[0])) + return known[code]; + + if (code >= DW_CC_lo_user && code <= DW_CC_hi_user) + { + static char buf[30]; + snprintf (buf, sizeof (buf), "lo_user+%u", code - DW_CC_lo_user); + return buf; + } + + return "???"; +} + + +static const char * +dwarf_ordering_string (unsigned int code) +{ + static const char *known[] = + { + [DW_ORD_row_major] = "row_major", + [DW_ORD_col_major] = "col_major" + }; + + if (code < sizeof (known) / sizeof (known[0])) + return known[code]; + + return "???"; +} + + +static const char * +dwarf_discr_list_string (unsigned int code) +{ + static const char *known[] = + { + [DW_DSC_label] = "label", + [DW_DSC_range] = "range" + }; + + if (code < sizeof (known) / sizeof (known[0])) + return known[code]; + + return "???"; +} + + +static void +print_ops (Dwarf *dbg, int indent, int indentrest, + unsigned int addrsize, Dwarf_Word len, const unsigned char *data) +{ + static const char *known[] = + { + [DW_OP_addr] = "addr", + [DW_OP_deref] = "deref", + [DW_OP_const1u] = "const1u", + [DW_OP_const1s] = "const1s", + [DW_OP_const2u] = "const2u", + [DW_OP_const2s] = "const2s", + [DW_OP_const4u] = "const4u", + [DW_OP_const4s] = "const4s", + [DW_OP_const8u] = "const8u", + [DW_OP_const8s] = "const8s", + [DW_OP_constu] = "constu", + [DW_OP_consts] = "consts", + [DW_OP_dup] = "dup", + [DW_OP_drop] = "drop", + [DW_OP_over] = "over", + [DW_OP_pick] = "pick", + [DW_OP_swap] = "swap", + [DW_OP_rot] = "rot", + [DW_OP_xderef] = "xderef", + [DW_OP_abs] = "abs", + [DW_OP_and] = "and", + [DW_OP_div] = "div", + [DW_OP_minus] = "minus", + [DW_OP_mod] = "mod", + [DW_OP_mul] = "mul", + [DW_OP_neg] = "neg", + [DW_OP_not] = "not", + [DW_OP_or] = "or", + [DW_OP_plus] = "plus", + [DW_OP_plus_uconst] = "plus_uconst", + [DW_OP_shl] = "shl", + [DW_OP_shr] = "shr", + [DW_OP_shra] = "shra", + [DW_OP_xor] = "xor", + [DW_OP_bra] = "bra", + [DW_OP_eq] = "eq", + [DW_OP_ge] = "ge", + [DW_OP_gt] = "gt", + [DW_OP_le] = "le", + [DW_OP_lt] = "lt", + [DW_OP_ne] = "ne", + [DW_OP_skip] = "skip", + [DW_OP_lit0] = "lit0", + [DW_OP_lit1] = "lit1", + [DW_OP_lit2] = "lit2", + [DW_OP_lit3] = "lit3", + [DW_OP_lit4] = "lit4", + [DW_OP_lit5] = "lit5", + [DW_OP_lit6] = "lit6", + [DW_OP_lit7] = "lit7", + [DW_OP_lit8] = "lit8", + [DW_OP_lit9] = "lit9", + [DW_OP_lit10] = "lit10", + [DW_OP_lit11] = "lit11", + [DW_OP_lit12] = "lit12", + [DW_OP_lit13] = "lit13", + [DW_OP_lit14] = "lit14", + [DW_OP_lit15] = "lit15", + [DW_OP_lit16] = "lit16", + [DW_OP_lit17] = "lit17", + [DW_OP_lit18] = "lit18", + [DW_OP_lit19] = "lit19", + [DW_OP_lit20] = "lit20", + [DW_OP_lit21] = "lit21", + [DW_OP_lit22] = "lit22", + [DW_OP_lit23] = "lit23", + [DW_OP_lit24] = "lit24", + [DW_OP_lit25] = "lit25", + [DW_OP_lit26] = "lit26", + [DW_OP_lit27] = "lit27", + [DW_OP_lit28] = "lit28", + [DW_OP_lit29] = "lit29", + [DW_OP_lit30] = "lit30", + [DW_OP_lit31] = "lit31", + [DW_OP_reg0] = "reg0", + [DW_OP_reg1] = "reg1", + [DW_OP_reg2] = "reg2", + [DW_OP_reg3] = "reg3", + [DW_OP_reg4] = "reg4", + [DW_OP_reg5] = "reg5", + [DW_OP_reg6] = "reg6", + [DW_OP_reg7] = "reg7", + [DW_OP_reg8] = "reg8", + [DW_OP_reg9] = "reg9", + [DW_OP_reg10] = "reg10", + [DW_OP_reg11] = "reg11", + [DW_OP_reg12] = "reg12", + [DW_OP_reg13] = "reg13", + [DW_OP_reg14] = "reg14", + [DW_OP_reg15] = "reg15", + [DW_OP_reg16] = "reg16", + [DW_OP_reg17] = "reg17", + [DW_OP_reg18] = "reg18", + [DW_OP_reg19] = "reg19", + [DW_OP_reg20] = "reg20", + [DW_OP_reg21] = "reg21", + [DW_OP_reg22] = "reg22", + [DW_OP_reg23] = "reg23", + [DW_OP_reg24] = "reg24", + [DW_OP_reg25] = "reg25", + [DW_OP_reg26] = "reg26", + [DW_OP_reg27] = "reg27", + [DW_OP_reg28] = "reg28", + [DW_OP_reg29] = "reg29", + [DW_OP_reg30] = "reg30", + [DW_OP_reg31] = "reg31", + [DW_OP_breg0] = "breg0", + [DW_OP_breg1] = "breg1", + [DW_OP_breg2] = "breg2", + [DW_OP_breg3] = "breg3", + [DW_OP_breg4] = "breg4", + [DW_OP_breg5] = "breg5", + [DW_OP_breg6] = "breg6", + [DW_OP_breg7] = "breg7", + [DW_OP_breg8] = "breg8", + [DW_OP_breg9] = "breg9", + [DW_OP_breg10] = "breg10", + [DW_OP_breg11] = "breg11", + [DW_OP_breg12] = "breg12", + [DW_OP_breg13] = "breg13", + [DW_OP_breg14] = "breg14", + [DW_OP_breg15] = "breg15", + [DW_OP_breg16] = "breg16", + [DW_OP_breg17] = "breg17", + [DW_OP_breg18] = "breg18", + [DW_OP_breg19] = "breg19", + [DW_OP_breg20] = "breg20", + [DW_OP_breg21] = "breg21", + [DW_OP_breg22] = "breg22", + [DW_OP_breg23] = "breg23", + [DW_OP_breg24] = "breg24", + [DW_OP_breg25] = "breg25", + [DW_OP_breg26] = "breg26", + [DW_OP_breg27] = "breg27", + [DW_OP_breg28] = "breg28", + [DW_OP_breg29] = "breg29", + [DW_OP_breg30] = "breg30", + [DW_OP_breg31] = "breg31", + [DW_OP_regx] = "regx", + [DW_OP_fbreg] = "fbreg", + [DW_OP_bregx] = "bregx", + [DW_OP_piece] = "piece", + [DW_OP_deref_size] = "deref_size", + [DW_OP_xderef_size] = "xderef_size", + [DW_OP_nop] = "nop", + [DW_OP_push_object_address] = "push_object_address", + [DW_OP_call2] = "call2", + [DW_OP_call4] = "call4", + [DW_OP_call_ref] = "call_ref", + }; + + Dwarf_Word offset = 0; + while (len-- > 0) + { + size_t op = *data++; + + switch (op) + { + case DW_OP_call_ref: + case DW_OP_addr:; + /* Address operand. */ + Dwarf_Word addr; + if (addrsize == 4) + addr = read_4ubyte_unaligned (dbg, data); + else + { + assert (addrsize == 8); + addr = read_8ubyte_unaligned (dbg, data); + } + data += addrsize; + len -= addrsize; + + printf ("%*s[%4" PRIuMAX "] %s %" PRIuMAX "\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", (uintmax_t) addr); + offset += 1 + addrsize; + break; + + case DW_OP_deref_size: /* XXX Correct? */ + case DW_OP_xderef_size: /* XXX Correct? */ + case DW_OP_pick: + case DW_OP_const1u: + printf ("%*s[%4" PRIuMAX "] %s %" PRIu8 "\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", *((uint8_t *) data)); + ++data; + --len; + offset += 2; + break; + + case DW_OP_const2u: + printf ("%*s[%4" PRIuMAX "] %s %" PRIu16 "\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", read_2ubyte_unaligned (dbg, data)); + len -= 2; + data += 2; + offset += 3; + break; + + case DW_OP_const4u: + printf ("%*s[%4" PRIuMAX "] %s %" PRIu32 "\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", read_4ubyte_unaligned (dbg, data)); + len -= 4; + data += 4; + offset += 5; + break; + + case DW_OP_const8u: + printf ("%*s[%4" PRIuMAX "] %s %" PRIu64 "\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", read_8ubyte_unaligned (dbg, data)); + len -= 8; + data += 8; + offset += 9; + break; + + case DW_OP_const1s: + printf ("%*s[%4" PRIuMAX "] %s %" PRId8 "\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", *((int8_t *) data)); + ++data; + --len; + offset += 2; + break; + + case DW_OP_const2s: + printf ("%*s[%4" PRIuMAX "] %s %" PRId16 "\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", read_2sbyte_unaligned (dbg, data)); + len -= 2; + data += 2; + offset += 3; + break; + + case DW_OP_const4s: + printf ("%*s[%4" PRIuMAX "] %s %" PRId32 "\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", read_4sbyte_unaligned (dbg, data)); + len -= 4; + data += 4; + offset += 5; + break; + + case DW_OP_const8s: + printf ("%*s[%4" PRIuMAX "] %s %" PRId64 "\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", read_8sbyte_unaligned (dbg, data)); + len -= 8; + data += 8; + offset += 9; + break; + + case DW_OP_piece: /* XXX Correct? */ + case DW_OP_regx: + case DW_OP_plus_uconst: + case DW_OP_constu:; + const unsigned char *start = data; + unsigned int uleb; + get_uleb128 (uleb, data); + printf ("%*s[%4" PRIuMAX "] %s %u\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", uleb); + len -= data - start; + offset += 1 + (data - start); + break; + + case DW_OP_fbreg: + case DW_OP_breg0 ... DW_OP_breg31: + case DW_OP_consts: + start = data; + unsigned int sleb; + get_sleb128 (sleb, data); + printf ("%*s[%4" PRIuMAX "] %s %d\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", sleb); + len -= data - start; + offset += 1 + (data - start); + break; + + case DW_OP_bregx: + start = data; + get_uleb128 (uleb, data); + get_sleb128 (sleb, data); + printf ("%*s[%4" PRIuMAX "] %s %u %d\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", uleb, sleb); + len -= data - start; + offset += 1 + (data - start); + break; + + case DW_OP_call2: + case DW_OP_call4: + case DW_OP_skip: + case DW_OP_bra: + printf ("%*s[%4" PRIuMAX "] %s %" PRIuMAX "\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???", + (uintmax_t) (offset + read_2sbyte_unaligned (dbg, data))); + len -= 2; + data += 2; + offset += 3; + break; + + default: + /* No Operand. */ + printf ("%*s[%4" PRIuMAX "] %s\n", + indent, "", (uintmax_t) offset, + known[op] ?: "???"); + ++offset; + break; + } + + indent = indentrest; + } +} + + +static void +print_debug_abbrev_section (Ebl *ebl __attribute__ ((unused)), + GElf_Ehdr *ehdr __attribute__ ((unused)), + Elf_Scn *scn __attribute__ ((unused)), + GElf_Shdr *shdr, Dwarf *dbg) +{ + printf (gettext ("\nDWARF section '%s' at offset %#" PRIx64 ":\n" + " [ Code]\n"), + ".debug_abbrev", (uint64_t) shdr->sh_offset); + + Dwarf_Off offset = 0; + while (offset < shdr->sh_size) + { + printf (gettext ("\nAbbreviation section at offset %" PRIu64 ":\n"), + offset); + + while (1) + { + size_t length; + Dwarf_Abbrev abbrev; + + int res = dwarf_offabbrev (dbg, offset, &length, &abbrev); + if (res != 0) + { + if (res < 0) + { + printf (gettext ("\ + *** error while reading abbreviation: %s\n"), + dwarf_errmsg (-1)); + return; + } + + /* This is the NUL byte at the end of the section. */ + ++offset; + break; + } + + /* We know these calls can never fail. */ + unsigned int code = dwarf_getabbrevcode (&abbrev); + unsigned int tag = dwarf_getabbrevtag (&abbrev); + int has_children = dwarf_abbrevhaschildren (&abbrev); + + printf (gettext (" [%5u] offset: %" PRId64 + ", children: %s, tag: %s\n"), + code, (int64_t) offset, + has_children ? gettext ("yes") : gettext ("no"), + dwarf_tag_string (tag)); + + size_t cnt = 0; + unsigned int name; + unsigned int form; + Dwarf_Off enoffset; + while (dwarf_getabbrevattr (&abbrev, cnt, + &name, &form, &enoffset) == 0) + { + printf (" attr: %s, form: %s, offset: %#" PRIx64 "\n", + dwarf_attr_string (name), dwarf_form_string (form), + (uint64_t) enoffset); + + ++cnt; + } + + offset += length; + } + } +} + + +/* Print content of DWARF .debug_aranges section. We fortunately do + not have to know a bit about the structure of the section, libdwarf + takes care of it. */ +static void +print_debug_aranges_section (Ebl *ebl __attribute__ ((unused)), + GElf_Ehdr *ehdr __attribute__ ((unused)), + Elf_Scn *scn __attribute__ ((unused)), + GElf_Shdr *shdr, Dwarf *dbg) +{ + Dwarf_Aranges *aranges; + size_t cnt; + if (dwarf_getaranges (dbg, &aranges, &cnt) != 0) + { + error (0, 0, gettext ("cannot get .debug_aranges content: %s"), + dwarf_errmsg (-1)); + return; + } + + printf (ngettext ("\ +\nDWARF section '%s' at offset %#" PRIx64 " contains %zu entry:\n", + "\ +\nDWARF section '%s' at offset %#" PRIx64 " contains %zu entries:\n", + cnt), + ".debug_aranges", (uint64_t) shdr->sh_offset, cnt); + + /* Compute floor(log16(cnt)). */ + size_t tmp = cnt; + int digits = 1; + while (tmp >= 16) + { + ++digits; + tmp >>= 4; + } + + for (size_t n = 0; n < cnt; ++n) + { + Dwarf_Arange *runp = dwarf_onearange (aranges, n); + if (runp == NULL) + { + printf ("cannot get arange %zu: %s\n", n, dwarf_errmsg (-1)); + return; + } + + Dwarf_Addr start; + Dwarf_Word length; + Dwarf_Off offset; + + if (dwarf_getarangeinfo (runp, &start, &length, &offset) != 0) + printf (gettext (" [%*zu] ???\n"), digits, n); + else + printf (gettext (" [%*zu] start: %0#*" PRIx64 + ", length: %5" PRIu64 ", CU DIE offset: %6" + PRId64 "\n"), + digits, n, ehdr->e_ident[EI_CLASS] == ELFCLASS32 ? 10 : 18, + (uint64_t) start, (uint64_t) length, (int64_t) offset); + } +} + +/* Print content of DWARF .debug_ranges section. */ +static void +print_debug_ranges_section (Ebl *ebl __attribute__ ((unused)), + GElf_Ehdr *ehdr, Elf_Scn *scn, GElf_Shdr *shdr, + Dwarf *dbg) +{ + Elf_Data *data = elf_rawdata (scn, NULL); + + if (data == NULL) + { + error (0, 0, gettext ("cannot get .debug_ranges content: %s"), + elf_errmsg (-1)); + return; + } + + printf (gettext ("\ +\nDWARF section '%s' at offset %#" PRIx64 ":\n"), + ".debug_ranges", (uint64_t) shdr->sh_offset); + + size_t address_size = ehdr->e_ident[EI_CLASS] == ELFCLASS32 ? 4 : 8; + + bool first = true; + unsigned char *readp = data->d_buf; + while (readp < (unsigned char *) data->d_buf + data->d_size) + { + ptrdiff_t offset = readp - (unsigned char *) data->d_buf; + + if (data->d_size - offset < address_size * 2) + { + printf (" [%6tx] \n", offset); + break; + } + + Dwarf_Addr begin; + Dwarf_Addr end; + if (address_size == 8) + { + begin = read_8ubyte_unaligned_inc (dbg, readp); + end = read_8ubyte_unaligned_inc (dbg, readp); + } + else + { + begin = read_4ubyte_unaligned_inc (dbg, readp); + end = read_4ubyte_unaligned_inc (dbg, readp); + if (begin == (Dwarf_Addr) (uint32_t) -1) + begin = (Dwarf_Addr) -1l; + } + + if (begin == (Dwarf_Addr) -1l) /* Base address entry. */ + printf (" [%6tx] base address %#0*" PRIxMAX "\n", offset, + 2 + (int) (address_size * 2), (uintmax_t) end); + else if (begin == 0 && end == 0) /* End of list entry. */ + first = true; + else + { + /* We have an address range entry. */ + if (first) /* First address range entry in a list. */ + printf (" [%6tx] %#0*" PRIxMAX "..%#0*" PRIxMAX "\n", offset, + 2 + (int) (address_size * 2), (uintmax_t) begin, + 2 + (int) (address_size * 2), (uintmax_t) end); + else + printf (" %#0*" PRIxMAX "..%#0*" PRIxMAX "\n", + 2 + (int) (address_size * 2), (uintmax_t) begin, + 2 + (int) (address_size * 2), (uintmax_t) end); + + first = false; + } + } +} + + +static void +print_debug_frame_section (Ebl *ebl __attribute__ ((unused)), + GElf_Ehdr *ehdr __attribute__ ((unused)), + Elf_Scn *scn __attribute__ ((unused)), + GElf_Shdr *shdr __attribute__ ((unused)), + Dwarf *dbg __attribute__ ((unused))) +{ +} + + +struct attrcb_args +{ + Dwarf *dbg; + int level; + unsigned int addrsize; + Dwarf_Off cu_offset; +}; + + +static int +attr_callback (Dwarf_Attribute *attrp, void *arg) +{ + struct attrcb_args *cbargs = (struct attrcb_args *) arg; + const int level = cbargs->level; + + unsigned int attr = dwarf_whatattr (attrp); + if (unlikely (attr == 0)) + { + error (0, 0, gettext ("cannot get attribute code: %s"), + dwarf_errmsg (-1)); + return DWARF_CB_ABORT; + } + + unsigned int form = dwarf_whatform (attrp); + if (unlikely (form == 0)) + { + error (0, 0, gettext ("cannot get attribute form: %s"), + dwarf_errmsg (-1)); + return DWARF_CB_ABORT; + } + + switch (form) + { + case DW_FORM_addr:; + Dwarf_Addr addr; + if (unlikely (dwarf_formaddr (attrp, &addr) != 0)) + { + attrval_out: + error (0, 0, gettext ("cannot get attribute value: %s"), + dwarf_errmsg (-1)); + return DWARF_CB_ABORT; + } + printf (" %*s%-20s %#0*" PRIxMAX "\n", + (int) (level * 2), "", dwarf_attr_string (attr), + 2 + (int) (cbargs->addrsize * 2), (uintmax_t) addr); + break; + + case DW_FORM_indirect: + case DW_FORM_strp: + case DW_FORM_string:; + const char *str = dwarf_formstring (attrp); + if (unlikely (str == NULL)) + goto attrval_out; + printf (" %*s%-20s \"%s\"\n", + (int) (level * 2), "", dwarf_attr_string (attr), str); + break; + + case DW_FORM_ref_addr: + case DW_FORM_ref_udata: + case DW_FORM_ref8: + case DW_FORM_ref4: + case DW_FORM_ref2: + case DW_FORM_ref1:; + Dwarf_Off ref; + if (unlikely (dwarf_formref (attrp, &ref) != 0)) + goto attrval_out; + + printf (" %*s%-20s [%6" PRIxMAX "]\n", + (int) (level * 2), "", dwarf_attr_string (attr), + (uintmax_t) (ref + cbargs->cu_offset)); + break; + + case DW_FORM_udata: + case DW_FORM_sdata: + case DW_FORM_data8: + case DW_FORM_data4: + case DW_FORM_data2: + case DW_FORM_data1:; + Dwarf_Word num; + if (unlikely (dwarf_formudata (attrp, &num) != 0)) + goto attrval_out; + + const char *valuestr = NULL; + switch (attr) + { + case DW_AT_location: + case DW_AT_data_member_location: + case DW_AT_vtable_elem_location: + case DW_AT_string_length: + case DW_AT_use_location: + case DW_AT_frame_base: + case DW_AT_return_addr: + case DW_AT_static_link: + printf (" %*s%-20s location list [%6" PRIxMAX "]\n", + (int) (level * 2), "", dwarf_attr_string (attr), + (uintmax_t) num); + return DWARF_CB_OK; + + case DW_AT_ranges: + printf (" %*s%-20s range list [%6" PRIxMAX "]\n", + (int) (level * 2), "", dwarf_attr_string (attr), + (uintmax_t) num); + return DWARF_CB_OK; + + case DW_AT_language: + valuestr = dwarf_lang_string (num); + break; + case DW_AT_encoding: + valuestr = dwarf_encoding_string (num); + break; + case DW_AT_accessibility: + valuestr = dwarf_access_string (num); + break; + case DW_AT_visibility: + valuestr = dwarf_visibility_string (num); + break; + case DW_AT_virtuality: + valuestr = dwarf_virtuality_string (num); + break; + case DW_AT_identifier_case: + valuestr = dwarf_identifier_case_string (num); + break; + case DW_AT_calling_convention: + valuestr = dwarf_calling_convention_string (num); + break; + case DW_AT_inline: + valuestr = dwarf_inline_string (num); + break; + case DW_AT_ordering: + valuestr = dwarf_ordering_string (num); + break; + case DW_AT_discr_list: + valuestr = dwarf_discr_list_string (num); + break; + default: + /* Nothing. */ + break; + } + + if (valuestr == NULL) + printf (" %*s%-20s %" PRIuMAX "\n", + (int) (level * 2), "", dwarf_attr_string (attr), + (uintmax_t) num); + else + printf (" %*s%-20s %s (%" PRIuMAX ")\n", + (int) (level * 2), "", dwarf_attr_string (attr), + valuestr, (uintmax_t) num); + break; + + case DW_FORM_flag:; + bool flag; + if (unlikely (dwarf_formflag (attrp, &flag) != 0)) + goto attrval_out; + + printf (" %*s%-20s %s\n", + (int) (level * 2), "", dwarf_attr_string (attr), + nl_langinfo (flag ? YESSTR : NOSTR)); + break; + + case DW_FORM_block4: + case DW_FORM_block2: + case DW_FORM_block1: + case DW_FORM_block:; + Dwarf_Block block; + if (unlikely (dwarf_formblock (attrp, &block) != 0)) + goto attrval_out; + + printf (" %*s%-20s %" PRIxMAX " byte block\n", + (int) (level * 2), "", dwarf_attr_string (attr), + (uintmax_t) block.length); + + switch (attr) + { + case DW_AT_location: + case DW_AT_data_member_location: + case DW_AT_vtable_elem_location: + case DW_AT_string_length: + case DW_AT_use_location: + case DW_AT_frame_base: + case DW_AT_return_addr: + case DW_AT_static_link: + print_ops (cbargs->dbg, 12 + level * 2, 12 + level * 2, + cbargs->addrsize, block.length, block.data); + break; + } + break; + + default: + printf (" %*s%-20s [form: %d] ???\n", + (int) (level * 2), "", dwarf_attr_string (attr), + (int) form); + break; + } + + return DWARF_CB_OK; +} + + +static void +print_debug_info_section (Ebl *ebl __attribute__ ((unused)), + GElf_Ehdr *ehdr __attribute__ ((unused)), + Elf_Scn *scn __attribute__ ((unused)), + GElf_Shdr *shdr, Dwarf *dbg) +{ + printf (gettext ("\ +\nDWARF section '%s' at offset %#" PRIx64 ":\n [Offset]\n"), + ".debug_info", (uint64_t) shdr->sh_offset); + + /* If the section is empty we don't have to do anything. */ + if (shdr->sh_size == 0) + return; + + int maxdies = 20; + Dwarf_Die *dies = (Dwarf_Die *) xmalloc (maxdies * sizeof (Dwarf_Die)); + + Dwarf_Off offset = 0; + + /* New compilation unit. */ + size_t cuhl; + //Dwarf_Half version; + Dwarf_Off abbroffset; + uint8_t addrsize; + uint8_t offsize; + Dwarf_Off nextcu; + next_cu: + if (dwarf_nextcu (dbg, offset, &nextcu, &cuhl, &abbroffset, &addrsize, + &offsize) != 0) + goto do_return; + + printf (gettext (" Compilation unit at offset %" PRIu64 ":\n" + " Version: %" PRIu16 ", Abbreviation section offset: %" + PRIu64 ", Address size: %" PRIu8 ", Offset size: %" PRIu8 "\n"), + (uint64_t) offset, /*version*/2, abbroffset, addrsize, offsize); + + + struct attrcb_args args; + args.dbg = dbg; + args.addrsize = addrsize; + args.cu_offset = offset; + + offset += cuhl; + + int level = 0; + + if (unlikely (dwarf_offdie (dbg, offset, &dies[level]) == NULL)) + { + error (0, 0, gettext ("cannot get DIE at offset %" PRIu64 + " in section '%s': %s"), + (uint64_t) offset, ".debug_info", dwarf_errmsg (-1)); + goto do_return; + } + + do + { + offset = dwarf_dieoffset (&dies[level]); + if (offset == ~0ul) + { + error (0, 0, gettext ("cannot get DIE offset: %s"), + dwarf_errmsg (-1)); + goto do_return; + } + + int tag = dwarf_tag (&dies[level]); + if (tag == DW_TAG_invalid) + { + error (0, 0, gettext ("cannot get tag of DIE at offset %" PRIu64 + " in section '%s': %s"), + (uint64_t) offset, ".debug_info", dwarf_errmsg (-1)); + goto do_return; + } + +#if 1 + const char *tagstr = dwarf_tag_string (tag); +#else + static const char *const lowtags[] = + { + [DW_TAG_array_type] = "array_type", + [DW_TAG_class_type] = "class_type", + [DW_TAG_entry_point] = "entry_point", + [DW_TAG_enumeration_type] = "enumeration_type", + [DW_TAG_formal_parameter] = "formal_parameter", + [DW_TAG_imported_declaration] = "imported_declaration", + [DW_TAG_label] = "label", + [DW_TAG_lexical_block] = "lexical_block", + [DW_TAG_member] = "member", + [DW_TAG_pointer_type] = "pointer_type", + [DW_TAG_reference_type] = "reference_type", + [DW_TAG_compile_unit] = "compile_unit", + [DW_TAG_string_type] = "string_type", + [DW_TAG_structure_type] = "structure_type", + [DW_TAG_subroutine_type] = "subroutine_type", + [DW_TAG_typedef] = "typedef", + [DW_TAG_union_type] = "union_type", + [DW_TAG_unspecified_parameters] = "unspecified_parameters", + [DW_TAG_variant] = "variant", + [DW_TAG_common_block] = "common_block", + [DW_TAG_common_inclusion] = "common_inclusion", + [DW_TAG_inheritance] = "inheritance", + [DW_TAG_inlined_subroutine] = "inlined_subroutine", + [DW_TAG_module] = "module", + [DW_TAG_ptr_to_member_type] = "ptr_to_member_type", + [DW_TAG_set_type] = "set_type", + [DW_TAG_subrange_type] = "subrange_type", + [DW_TAG_with_stmt] = "with_stmt", + [DW_TAG_access_declaration] = "access_declaration", + [DW_TAG_base_type] = "base_type", + [DW_TAG_catch_block] = "catch_block", + [DW_TAG_const_type] = "const_type", + [DW_TAG_constant] = "constant", + [DW_TAG_enumerator] = "enumerator", + [DW_TAG_file_type] = "file_type", + [DW_TAG_friend] = "friend", + [DW_TAG_namelist] = "namelist", + [DW_TAG_namelist_item] = "namelist_item", + [DW_TAG_packed_type] = "packed_type", + [DW_TAG_subprogram] = "subprogram", + [DW_TAG_template_type_param] = "template_type_param", + [DW_TAG_template_value_param] = "template_value_param", + [DW_TAG_thrown_type] = "thrown_type", + [DW_TAG_try_block] = "try_block", + [DW_TAG_variant_part] = "variant_part", + [DW_TAG_variable] = "variable", + [DW_TAG_volatile_type] = "volatile_type" + }; + + const char *tagstr; + switch (tag) + { + case DW_TAG_lo_user: + tagstr = "lo_user"; + break; + + case DW_TAG_MIPS_loop: + tagstr = "MIPS_loop"; + break; + + case DW_TAG_format_label: + tagstr = "format_label"; + break; + + case DW_TAG_function_template: + tagstr = "function_template"; + break; + + case DW_TAG_class_template: + tagstr = "class_template"; + break; + case DW_TAG_hi_user: + tagstr = "hi_user"; + break; + + default: + if (tag < (int) (sizeof (lowtags) / sizeof (lowtags[0]))) + tagstr = lowtags[tag]; + else + tagstr = "???"; + break; + } +#endif + + printf (" [%6" PRIx64 "] %*s%s\n", + (uint64_t) offset, (int) (level * 2), "", tagstr); + + /* Print the attribute values. */ + args.level = level; + (void) dwarf_getattrs (&dies[level], attr_callback, &args, 0); + + /* Make room for the next level's DIE. */ + if (level + 1 == maxdies) + dies = (Dwarf_Die *) xrealloc (dies, + (maxdies += 10) + * sizeof (Dwarf_Die)); + + int res = dwarf_child (&dies[level], &dies[level + 1]); + if (res > 0) + { + while ((res = dwarf_siblingof (&dies[level], &dies[level])) == 1) + if (level-- == 0) + break; + + if (res == -1) + { + error (0, 0, gettext ("cannot get next DIE: %s\n"), + dwarf_errmsg (-1)); + goto do_return; + } + } + else if (unlikely (res < 0)) + { + error (0, 0, gettext ("cannot get next DIE: %s"), + dwarf_errmsg (-1)); + goto do_return; + } + else + ++level; + } + while (level >= 0); + + offset = nextcu; + if (offset != 0) + goto next_cu; + + do_return: + free (dies); +} + + +static void +print_debug_line_section (Ebl *ebl, GElf_Ehdr *ehdr __attribute__ ((unused)), + Elf_Scn *scn, GElf_Shdr *shdr, Dwarf *dbg) +{ + printf (gettext ("\ +\nDWARF section '%s' at offset %#" PRIx64 ":\n"), + ".debug_line", (uint64_t) shdr->sh_offset); + + if (shdr->sh_size == 0) + return; + + /* There is no functionality in libdw to read the information in the + way it is represented here. Hardcode the decoder. */ + Elf_Data *data = elf_getdata (scn, NULL); + if (data == NULL || data->d_buf == NULL) + { + error (0, 0, gettext ("cannot get line data section data: %s"), + elf_errmsg (-1)); + return; + } + + const unsigned char *linep = (const unsigned char *) data->d_buf; + const unsigned char *lineendp; + + while (linep + < (lineendp = (const unsigned char *) data->d_buf + data->d_size)) + { + size_t start_offset = linep - (const unsigned char *) data->d_buf; + + printf (gettext ("\nTable at offset %Zu:\n"), start_offset); + + Dwarf_Word unit_length = read_4ubyte_unaligned_inc (dbg, linep); + unsigned int length = 4; + if (unlikely (unit_length == 0xffffffff)) + { + if (unlikely (linep + 8 > lineendp)) + { + invalid_data: + error (0, 0, gettext ("invalid data in section [%zu] '%s'"), + elf_ndxscn (scn), ".debug_line"); + return; + } + unit_length = read_8ubyte_unaligned_inc (dbg, linep); + length = 8; + } + + /* Check whether we have enough room in the section. */ + if (unit_length < 2 + length + 5 * 1 + || unlikely (linep + unit_length > lineendp)) + goto invalid_data; + lineendp = linep + unit_length; + + /* The next element of the header is the version identifier. */ + uint_fast16_t version = read_2ubyte_unaligned_inc (dbg, linep); + + /* Next comes the header length. */ + Dwarf_Word header_length; + if (length == 4) + header_length = read_4ubyte_unaligned_inc (dbg, linep); + else + header_length = read_8ubyte_unaligned_inc (dbg, linep); + //const unsigned char *header_start = linep; + + /* Next the minimum instruction length. */ + uint_fast8_t minimum_instr_len = *linep++; + + /* Then the flag determining the default value of the is_stmt + register. */ + uint_fast8_t default_is_stmt = *linep++; + + /* Now the line base. */ + int_fast8_t line_base = *((const int_fast8_t *) linep); + ++linep; + + /* And the line range. */ + uint_fast8_t line_range = *linep++; + + /* The opcode base. */ + uint_fast8_t opcode_base = *linep++; + + /* Print what we got so far. */ + printf (gettext ("\n" + " Length: %" PRIu64 "\n" + " DWARF version: %" PRIuFAST16 "\n" + " Prologue length: %" PRIu64 "\n" + " Minimum instruction length: %" PRIuFAST8 "\n" + " Initial value if '%s': %" PRIuFAST8 "\n" + " Line base: %" PRIdFAST8 "\n" + " Line range: %" PRIuFAST8 "\n" + " Opcode base: %" PRIuFAST8 "\n" + "\n" + "Opcodes:\n"), + (uint64_t) unit_length, version, (uint64_t) header_length, + minimum_instr_len, "is_stmt", default_is_stmt, line_base, + line_range, opcode_base); + + if (unlikely (linep + opcode_base - 1 >= lineendp)) + goto invalid_data; + int opcode_base_l10 = 1; + unsigned int tmp = opcode_base; + while (tmp > 10) + { + tmp /= 10; + ++opcode_base_l10; + } + const uint8_t *standard_opcode_lengths = linep - 1; + for (uint_fast8_t cnt = 1; cnt < opcode_base; ++cnt) + printf (ngettext (" [%*" PRIuFAST8 "] %hhu argument\n", + " [%*" PRIuFAST8 "] %hhu arguments\n", + (int) linep[cnt - 1]), + opcode_base_l10, cnt, linep[cnt - 1]); + linep += opcode_base - 1; + if (unlikely (linep >= lineendp)) + goto invalid_data; + + puts (gettext ("\nDirectory table:")); + while (*linep != 0) + { + unsigned char *endp = memchr (linep, '\0', lineendp - linep); + if (endp == NULL) + goto invalid_data; + + printf (" %s\n", (char *) linep); + + linep = endp + 1; + } + /* Skip the final NUL byte. */ + ++linep; + + if (unlikely (linep >= lineendp)) + goto invalid_data; + puts (gettext ("\nFile name table:\n" + " Entry Dir Time Size Name")); + for (unsigned int cnt = 1; *linep != 0; ++cnt) + { + /* First comes the file name. */ + char *fname = (char *) linep; + unsigned char *endp = memchr (fname, '\0', lineendp - linep); + if (endp == NULL) + goto invalid_data; + linep = endp + 1; + + /* Then the index. */ + unsigned int diridx; + get_uleb128 (diridx, linep); + + /* Next comes the modification time. */ + unsigned int mtime; + get_uleb128 (mtime, linep); + + /* Finally the length of the file. */ + unsigned int fsize; + get_uleb128 (fsize, linep); + + printf (" %-5u %-5u %-9u %-9u %s\n", + cnt, diridx, mtime, fsize, fname); + } + /* Skip the final NUL byte. */ + ++linep; + + puts (gettext ("\nLine number statements:")); + Dwarf_Word address = 0; + size_t line = 1; + uint_fast8_t is_stmt = default_is_stmt; + + /* Default address value, in case we do not find the CU. */ + size_t address_size + = elf_getident (ebl->elf, NULL)[EI_CLASS] == ELFCLASS32 ? 4 : 8; + + /* Determine the CU this block is for. */ + Dwarf_Off cuoffset; + Dwarf_Off ncuoffset = 0; + size_t hsize; + while (dwarf_nextcu (dbg, cuoffset = ncuoffset, &ncuoffset, &hsize, + NULL, NULL, NULL) == 0) + { + Dwarf_Die cudie; + if (dwarf_offdie (dbg, cuoffset + hsize, &cudie) == NULL) + continue; + Dwarf_Attribute stmt_list; + if (dwarf_attr (&cudie, DW_AT_stmt_list, &stmt_list) == NULL) + continue; + Dwarf_Word lineoff; + if (dwarf_formudata (&stmt_list, &lineoff) != 0) + continue; + if (lineoff == start_offset) + { + /* Found the CU. */ + address_size = cudie.cu->address_size; + break; + } + } + + while (linep < lineendp) + { + unsigned int u128; + int s128; + + /* Read the opcode. */ + unsigned int opcode = *linep++; + + /* Is this a special opcode? */ + if (likely (opcode >= opcode_base)) + { + /* Yes. Handling this is quite easy since the opcode value + is computed with + + opcode = (desired line increment - line_base) + + (line_range * address advance) + opcode_base + */ + int line_increment = (line_base + + (opcode - opcode_base) % line_range); + unsigned int address_increment = (minimum_instr_len + * ((opcode - opcode_base) + / line_range)); + + /* Perform the increments. */ + line += line_increment; + address += address_increment; + + printf (gettext ("\ + special opcode %u: address+%u = %#" PRIx64 ", line%+d = %zu\n"), + opcode, address_increment, (uint64_t) address, + line_increment, line); + } + else if (opcode == 0) + { + /* This an extended opcode. */ + if (unlikely (linep + 2 > lineendp)) + goto invalid_data; + + /* The length. */ + unsigned int len = *linep++; + + if (unlikely (linep + len > lineendp)) + goto invalid_data; + + /* The sub-opcode. */ + opcode = *linep++; + + printf (gettext (" extended opcode %u: "), opcode); + + switch (opcode) + { + case DW_LNE_end_sequence: + puts (gettext ("end of sequence")); + + /* Reset the registers we care about. */ + address = 0; + line = 1; + is_stmt = default_is_stmt; + break; + + case DW_LNE_set_address: + if (address_size == 4) + address = read_4ubyte_unaligned_inc (dbg, linep); + else + address = read_8ubyte_unaligned_inc (dbg, linep); + printf (gettext ("set address to %#" PRIx64 "\n"), + (uint64_t) address); + break; + + case DW_LNE_define_file: + { + char *fname = (char *) linep; + unsigned char *endp = memchr (linep, '\0', + lineendp - linep); + if (endp == NULL) + goto invalid_data; + linep = endp + 1; + + unsigned int diridx; + get_uleb128 (diridx, linep); + Dwarf_Word mtime; + get_uleb128 (mtime, linep); + Dwarf_Word filelength; + get_uleb128 (filelength, linep); + + printf (gettext ("\ +define new file: dir=%u, mtime=%" PRIu64 ", length=%" PRIu64 ", name=%s\n"), + diridx, (uint64_t) mtime, (uint64_t) filelength, + fname); + } + break; + + default: + /* Unknown, ignore it. */ + puts (gettext ("unknown opcode")); + linep += len - 1; + break; + } + } + else if (opcode <= DW_LNS_set_epilog_begin) + { + /* This is a known standard opcode. */ + switch (opcode) + { + case DW_LNS_copy: + /* Takes no argument. */ + puts (gettext (" copy")); + break; + + case DW_LNS_advance_pc: + /* Takes one uleb128 parameter which is added to the + address. */ + get_uleb128 (u128, linep); + address += minimum_instr_len * u128; + printf (gettext ("\ + advance address by %u to %#" PRIx64 "\n"), + u128, (uint64_t) address); + break; + + case DW_LNS_advance_line: + /* Takes one sleb128 parameter which is added to the + line. */ + get_sleb128 (s128, linep); + line += s128; + printf (gettext ("\ + advance line by constant %d to %" PRId64 "\n"), + s128, (int64_t) line); + break; + + case DW_LNS_set_file: + /* Takes one uleb128 parameter which is stored in file. */ + get_uleb128 (u128, linep); + printf (gettext (" set file to %" PRIu64 "\n"), + (uint64_t) u128); + break; + + case DW_LNS_set_column: + /* Takes one uleb128 parameter which is stored in column. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + goto invalid_data; + + get_uleb128 (u128, linep); + printf (gettext (" set column to %" PRIu64 "\n"), + (uint64_t) u128); + break; + + case DW_LNS_negate_stmt: + /* Takes no argument. */ + is_stmt = 1 - is_stmt; + printf (gettext (" set '%s' to %" PRIuFAST8 "\n"), + "is_stmt", is_stmt); + break; + + case DW_LNS_set_basic_block: + /* Takes no argument. */ + puts (gettext (" set basic block flag")); + break; + + case DW_LNS_const_add_pc: + /* Takes no argument. */ + u128 = (minimum_instr_len + * ((255 - opcode_base) / line_range)); + address += u128; + printf (gettext ("\ + advance address by constant %u to %#" PRIx64 "\n"), + u128, (uint64_t) address); + break; + + case DW_LNS_fixed_advance_pc: + /* Takes one 16 bit parameter which is added to the + address. */ + if (unlikely (standard_opcode_lengths[opcode] != 1)) + goto invalid_data; + + u128 = read_2ubyte_unaligned_inc (dbg, linep); + address += u128; + printf (gettext ("\ + advance address by fixed value %u to %#" PRIx64 "\n"), + u128, (uint64_t) address); + break; + + case DW_LNS_set_prologue_end: + /* Takes no argument. */ + puts (gettext (" set prologue end flag")); + break; + + case DW_LNS_set_epilog_begin: + /* Takes no argument. */ + puts (gettext (" set epilogue begin flag")); + break; + } + } + else + { + /* This is a new opcode the generator but not we know about. + Read the parameters associated with it but then discard + everything. Read all the parameters for this opcode. */ + printf (ngettext (" unknown opcode with %" PRIu8 " parameter:", + " unknown opcode with %" PRIu8 " parameters:", + standard_opcode_lengths[opcode]), + standard_opcode_lengths[opcode]); + for (int n = standard_opcode_lengths[opcode]; n > 0; --n) + { + get_uleb128 (u128, linep); + if (n != standard_opcode_lengths[opcode]) + putc_unlocked (',', stdout); + printf (" %u", u128); + } + + /* Next round, ignore this opcode. */ + continue; + } + } + } + + /* There must only be one data block. */ + assert (elf_getdata (scn, data) == NULL); +} + + +static void +print_debug_loc_section (Ebl *ebl __attribute__ ((unused)), + GElf_Ehdr *ehdr __attribute__ ((unused)), + Elf_Scn *scn __attribute__ ((unused)), + GElf_Shdr *shdr, + Dwarf *dbg __attribute__ ((unused))) +{ + Elf_Data *data = elf_rawdata (scn, NULL); + + if (data == NULL) + { + error (0, 0, gettext ("cannot get .debug_loc content: %s"), + elf_errmsg (-1)); + return; + } + + printf (gettext ("\ +\nDWARF section '%s' at offset %#" PRIx64 ":\n"), + ".debug_loc", (uint64_t) shdr->sh_offset); + + size_t address_size = ehdr->e_ident[EI_CLASS] == ELFCLASS32 ? 4 : 8; + + bool first = true; + unsigned char *readp = data->d_buf; + while (readp < (unsigned char *) data->d_buf + data->d_size) + { + ptrdiff_t offset = readp - (unsigned char *) data->d_buf; + + if (data->d_size - offset < address_size * 2) + { + printf (" [%6tx] \n", offset); + break; + } + + Dwarf_Addr begin; + Dwarf_Addr end; + if (address_size == 8) + { + begin = read_8ubyte_unaligned_inc (dbg, readp); + end = read_8ubyte_unaligned_inc (dbg, readp); + } + else + { + begin = read_4ubyte_unaligned_inc (dbg, readp); + end = read_4ubyte_unaligned_inc (dbg, readp); + if (begin == (Dwarf_Addr) (uint32_t) -1) + begin = (Dwarf_Addr) -1l; + } + + if (begin == (Dwarf_Addr) -1l) /* Base address entry. */ + printf (" [%6tx] base address %#0*" PRIxMAX "\n", offset, + 2 + (int) (address_size * 2), (uintmax_t) end); + else if (begin == 0 && end == 0) /* End of list entry. */ + first = true; + else + { + /* We have a location expression entry. */ + uint_fast16_t len = read_2ubyte_unaligned_inc (dbg, readp); + + if (first) /* First entry in a list. */ + printf (" [%6tx] %#0*" PRIxMAX "..%#0*" PRIxMAX, + offset, + 2 + (int) (address_size * 2), (uintmax_t) begin, + 2 + (int) (address_size * 2), (uintmax_t) end); + else + printf (" %#0*" PRIxMAX "..%#0*" PRIxMAX, + 2 + (int) (address_size * 2), (uintmax_t) begin, + 2 + (int) (address_size * 2), (uintmax_t) end); + + print_ops (dbg, 1, 18 + (address_size * 4), + address_size, len, readp); + + first = false; + readp += len; + } + } +} + +struct mac_culist +{ + Dwarf_Die die; + Dwarf_Off offset; + Dwarf_Files *files; + struct mac_culist *next; +}; + + +static int +mac_compare (const void *p1, const void *p2) +{ + struct mac_culist *m1 = (struct mac_culist *) p1; + struct mac_culist *m2 = (struct mac_culist *) p2; + + if (m1->offset < m2->offset) + return -1; + if (m1->offset > m2->offset) + return 1; + return 0; +} + + +static void +print_debug_macinfo_section (Ebl *ebl __attribute__ ((unused)), + GElf_Ehdr *ehdr __attribute__ ((unused)), + Elf_Scn *scn, GElf_Shdr *shdr, Dwarf *dbg) +{ + printf (gettext ("\ +\nDWARF section '%s' at offset %#" PRIx64 ":\n"), + ".debug_macinfo", (uint64_t) shdr->sh_offset); + putc_unlocked ('\n', stdout); + + /* There is no function in libdw to iterate over the raw content of + the section but it is easy enough to do. */ + Elf_Data *data = elf_getdata (scn, NULL); + if (data == NULL || data->d_buf == NULL) + { + error (0, 0, gettext ("cannot get macro information section data: %s"), + elf_errmsg (-1)); + return; + } + + /* Get the source file information for all CUs. */ + Dwarf_Off offset; + Dwarf_Off ncu = 0; + size_t hsize; + struct mac_culist *culist = NULL; + size_t nculist = 0; + while (dwarf_nextcu (dbg, offset = ncu, &ncu, &hsize, NULL, NULL, NULL) == 0) + { + Dwarf_Die cudie; + if (dwarf_offdie (dbg, offset + hsize, &cudie) == NULL) + continue; + + Dwarf_Attribute attr; + if (dwarf_attr (&cudie, DW_AT_macro_info, &attr) == NULL) + continue; + + Dwarf_Word macoff; + if (dwarf_formudata (&attr, &macoff) != 0) + continue; + + struct mac_culist *newp = (struct mac_culist *) alloca (sizeof (*newp)); + newp->die = cudie; + newp->offset = macoff; + newp->files = NULL; + newp->next = culist; + culist = newp; + ++nculist; + } + + /* Convert the list into an array for easier consumption. */ + struct mac_culist *cus = (struct mac_culist *) alloca ((nculist + 1) + * sizeof (*cus)); + /* Add sentinel. */ + cus[nculist].offset = data->d_size; + if (nculist > 0) + { + for (size_t cnt = nculist - 1; culist != NULL; --cnt) + { + assert (cnt < nculist); + cus[cnt] = *culist; + culist = culist->next; + } + + /* Sort the array according to the offset in the .debug_macinfo + section. Note we keep the sentinel at the end. */ + qsort (cus, nculist, sizeof (*cus), mac_compare); + } + + const unsigned char *readp = (const unsigned char *) data->d_buf; + const unsigned char *readendp = readp + data->d_size; + int level = 1; + + while (readp < readendp) + { + unsigned int opcode = *readp++; + unsigned int u128; + unsigned int u128_2; + const unsigned char *endp; + + switch (opcode) + { + case DW_MACINFO_define: + case DW_MACINFO_undef: + case DW_MACINFO_vendor_ext: + /* For the first two opcodes the parameters are + line, string + For the latter + number, string. + We can treat these cases together. */ + get_uleb128 (u128, readp); + + endp = memchr (readp, '\0', readendp - readp); + if (endp == NULL) + { + printf (gettext ("\ +%*s*** non-terminated string at end of section"), + level, ""); + return; + } + + if (opcode == DW_MACINFO_define) + printf ("%*s#define %s, line %u\n", + level, "", (char *) readp, u128); + else if (opcode == DW_MACINFO_undef) + printf ("%*s#undef %s, line %u\n", + level, "", (char *) readp, u128); + else + printf (" #vendor-ext %s, number %u\n", (char *) readp, u128); + + readp = endp + 1; + break; + + case DW_MACINFO_start_file: + /* The two parameters are line and file index, in this order. */ + get_uleb128 (u128, readp); + get_uleb128 (u128_2, readp); + + /* Find the CU DIE for this file. */ + size_t macoff = readp - (const unsigned char *) data->d_buf; + const char *fname = "???"; + if (macoff >= cus[0].offset) + { + while (macoff >= cus[1].offset) + ++cus; + + if (cus[0].files == NULL + && dwarf_getsrcfiles (&cus[0].die, &cus[0].files, NULL) != 0) + cus[0].files = (Dwarf_Files *) -1l; + + if (cus[0].files != (Dwarf_Files *) -1l) + fname = (dwarf_filesrc (cus[0].files, u128_2, NULL, NULL) + ?: "???"); + } + + printf ("%*sstart_file %u, [%u] %s\n", + level, "", u128, u128_2, fname); + ++level; + break; + + case DW_MACINFO_end_file: + --level; + printf ("%*send_file\n", level, ""); + /* Nothing more to do. */ + break; + + default: + // XXX gcc seems to generate files with a trailing zero. + if (opcode != 0 || readp != readendp) + printf ("%*s*** invalid opcode %u\n", level, "", opcode); + break; + } + } +} + + +/* Callback for printing global names. */ +static int +print_pubnames (Dwarf *dbg __attribute__ ((unused)), Dwarf_Global *global, + void *arg) +{ + int *np = (int *) arg; + + printf (gettext (" [%5d] DIE offset: %6" PRId64 + ", CU DIE offset: %6" PRId64 ", name: %s\n"), + (*np)++, global->die_offset, global->cu_offset, global->name); + + return 0; +} + + +/* Print the known exported symbols in the DWARF section '.debug_pubnames'. */ +static void +print_debug_pubnames_section (Ebl *ebl __attribute__ ((unused)), + GElf_Ehdr *ehdr __attribute__ ((unused)), + Elf_Scn *scn __attribute__ ((unused)), + GElf_Shdr *shdr, Dwarf *dbg) +{ + printf (gettext ("\nDWARF section '%s' at offset %#" PRIx64 ":\n"), + ".debug_pubnames", (uint64_t) shdr->sh_offset); + + int n = 0; + (void) dwarf_getpubnames (dbg, print_pubnames, &n, 0); +} + +/* Print the content of the DWARF string section '.debug_str'. */ +static void +print_debug_str_section (Ebl *ebl __attribute__ ((unused)), + GElf_Ehdr *ehdr __attribute__ ((unused)), + Elf_Scn *scn __attribute__ ((unused)), + GElf_Shdr *shdr, Dwarf *dbg) +{ + /* Compute floor(log16(shdr->sh_size)). */ + GElf_Addr tmp = shdr->sh_size; + int digits = 1; + while (tmp >= 16) + { + ++digits; + tmp >>= 4; + } + digits = MAX (4, digits); + + printf (gettext ("\nDWARF section '%s' at offset %#" PRIx64 ":\n" + " %*s String\n"), + ".debug_str", (uint64_t) shdr->sh_offset, + /* TRANS: the debugstr| prefix makes the string unique. */ + digits + 2, sgettext ("debugstr|Offset")); + + Dwarf_Off offset = 0; + while (offset < shdr->sh_size) + { + size_t len; + const char *str = dwarf_getstring (dbg, offset, &len); + if (str == NULL) + { + printf (gettext (" *** error while reading strings: %s\n"), + dwarf_errmsg (-1)); + break; + } + + printf (" [%*" PRIx64 "] \"%s\"\n", digits, (uint64_t) offset, str); + + offset += len + 1; + } +} + + +static void +print_debug (Ebl *ebl, GElf_Ehdr *ehdr) +{ + /* Find the version information sections. For this we have to + search through the section table. */ + Dwarf *dbg; + Elf_Scn *scn; + size_t shstrndx; + + /* Before we start the real work get a debug context descriptor. */ + dbg = dwarf_begin_elf (ebl->elf, DWARF_C_READ, NULL); + if (dbg == NULL) + { + error (0, 0, gettext ("cannot get debug context descriptor: %s"), + dwarf_errmsg (-1)); + return; + } + + /* Get the section header string table index. */ + if (elf_getshstrndx (ebl->elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + scn = NULL; + while ((scn = elf_nextscn (ebl->elf, scn)) != NULL) + { + /* Handle the section if it is part of the versioning handling. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr != NULL || shdr->sh_type != SHT_PROGBITS) + { + static const struct + { + const char *name; + enum section_e bitmask; + void (*fp) (Ebl *, GElf_Ehdr *, Elf_Scn *, GElf_Shdr *, Dwarf *); + } debug_sections[] = + { +#define NEW_SECTION(name) \ + { ".debug_" #name, section_##name, print_debug_##name##_section } + NEW_SECTION (abbrev), + NEW_SECTION (aranges), + NEW_SECTION (frame), + NEW_SECTION (info), + NEW_SECTION (line), + NEW_SECTION (loc), + NEW_SECTION (pubnames), + NEW_SECTION (str), + NEW_SECTION (macinfo), + NEW_SECTION (ranges), + { ".eh_frame", section_frame, print_debug_frame_section } + }; + const int ndebug_sections = (sizeof (debug_sections) + / sizeof (debug_sections[0])); + const char *name = elf_strptr (ebl->elf, shstrndx, + shdr->sh_name); + int n; + + for (n = 0; n < ndebug_sections; ++n) + if (strcmp (name, debug_sections[n].name) == 0) + { + if (print_debug_sections & debug_sections[n].bitmask) + debug_sections[n].fp (ebl, ehdr, scn, shdr, dbg); + break; + } + } + } + + /* We are done with the DWARF handling. */ + dwarf_end (dbg); +} + + +static void +handle_notes (Ebl *ebl, GElf_Ehdr *ehdr) +{ + int class = gelf_getclass (ebl->elf); + size_t cnt; + + /* We have to look through the program header to find the note + sections. There can be more than one. */ + for (cnt = 0; cnt < ehdr->e_phnum; ++cnt) + { + GElf_Phdr mem; + GElf_Phdr *phdr = gelf_getphdr (ebl->elf, cnt, &mem); + + if (phdr == NULL || phdr->p_type != PT_NOTE) + /* Not what we are looking for. */ + continue; + + printf (gettext ("\ +\nNote segment of %" PRId64 " bytes at offset %#0" PRIx64 ":\n"), + phdr->p_filesz, phdr->p_offset); + + char *notemem = gelf_rawchunk (ebl->elf, phdr->p_offset, phdr->p_filesz); + if (notemem == NULL) + error (EXIT_FAILURE, 0, + gettext ("cannot get content of note section: %s"), + elf_errmsg (-1)); + + fputs_unlocked (gettext (" Owner Data size Type\n"), stdout); + + + /* Handle the note section content. It consists of one or more + entries each of which consists of five parts: + + - a 32-bit name length + - a 32-bit descriptor length + - a 32-bit type field + - the NUL-terminated name, length as specified in the first field + - the descriptor, length as specified in the second field + + The variable sized fields are padded to 32- or 64-bits + depending on whether the file is a 32- or 64-bit ELF file. + */ + // XXX Which 64-bit archs need 8-byte alignment? x86-64 does not. + size_t align = class == ELFCLASS32 ? 4 : 4; // XXX 8; +#define ALIGNED_LEN(len) (((len) + align - 1) & ~(align - 1)) + + size_t idx = 0; + while (idx < phdr->p_filesz) + { + /* XXX Handle 64-bit note section entries correctly. */ + struct + { + uint32_t namesz; + uint32_t descsz; + uint32_t type; + char name[0]; + } *noteentry = (__typeof (noteentry)) (notemem + idx); + + if (idx + 12 > phdr->p_filesz + || (idx + 12 + ALIGNED_LEN (noteentry->namesz) + + ALIGNED_LEN (noteentry->descsz) > phdr->p_filesz)) + /* This entry isn't completely contained in the note + section. Ignore it. */ + break; + + char buf[100]; + char buf2[100]; + printf (gettext (" %-13.*s %9" PRId32 " %s\n"), + (int) noteentry->namesz, noteentry->name, + noteentry->descsz, + ehdr->e_type == ET_CORE + ? ebl_core_note_type_name (ebl, noteentry->type, + buf, sizeof (buf)) + : ebl_object_note_type_name (ebl, noteentry->type, + buf2, sizeof (buf2))); + + /* Filter out invalid entries. */ + if (memchr (noteentry->name, '\0', noteentry->namesz) != NULL + /* XXX For now help broken Linux kernels. */ + || 1) + { + if (ehdr->e_type == ET_CORE) + ebl_core_note (ebl, noteentry->name, noteentry->type, + noteentry->descsz, + ¬eentry->name[ALIGNED_LEN (noteentry->namesz)]); + else + ebl_object_note (ebl, noteentry->name, noteentry->type, + noteentry->descsz, + ¬eentry->name[ALIGNED_LEN (noteentry->namesz)]); + } + + /* Move to the next entry. */ + idx += (12 + ALIGNED_LEN (noteentry->namesz) + + ALIGNED_LEN (noteentry->descsz)); + } + + gelf_freechunk (ebl->elf, notemem); + } +} diff --git a/src/sectionhash.c b/src/sectionhash.c new file mode 100644 index 0000000..4641c7c --- /dev/null +++ b/src/sectionhash.c @@ -0,0 +1,69 @@ +/* Section hash table implementation. + Copyright (C) 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include +#include + + +/* Comparison function for sections. */ +static int +scnhead_compare (struct scnhead *one, struct scnhead *two) +{ + int result = strcmp (one->name, two->name); + + if (result == 0) + { + result = one->type - two->type; + + if (result == 0) + { + GElf_Sxword diff = (SH_FLAGS_IMPORTANT (one->flags) + - SH_FLAGS_IMPORTANT (two->flags)); + result = diff < 0 ? -1 : diff == 0 ? 0 : 1; + + if (result == 0) + { + result = one->entsize - two->entsize; + + if (result == 0) + { + result = (one->grp_signature == NULL + ? (two->grp_signature == NULL ? 0 : -1) + : (two->grp_signature == NULL + ? 1 : strcmp (one->grp_signature, + two->grp_signature))); + + if (result == 0) + result = one->kind - two->kind; + } + } + } + } + + return result; +} + +/* Definitions for the section hash table. */ +#define TYPE struct scnhead * +#define NAME ld_section_tab +#define ITERATE 1 +#define COMPARE(a, b) scnhead_compare (a, b) + +#include "../lib/dynamicsizehash.c" diff --git a/src/sectionhash.h b/src/sectionhash.h new file mode 100644 index 0000000..50bcb9c --- /dev/null +++ b/src/sectionhash.h @@ -0,0 +1,23 @@ +/* Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef SECTIONHASH_H +#define SECTIONHASH_H 1 + +/* Definitions for the section hash table. */ +#define TYPE struct scnhead * +#define NAME ld_section_tab +#define ITERATE 1 +#include + +#endif /* sectionhash.h */ diff --git a/src/size.c b/src/size.c new file mode 100644 index 0000000..4dc7baf --- /dev/null +++ b/src/size.c @@ -0,0 +1,682 @@ +/* Print size information from ELF file. + Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + + +/* Name and version of program. */ +static void print_version (FILE *stream, struct argp_state *state); +void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; + +/* Bug report address. */ +const char *argp_program_bug_address = PACKAGE_BUGREPORT; + + +/* Values for the parameters which have no short form. */ +#define OPT_FORMAT 0x100 +#define OPT_RADIX 0x101 + +/* Definitions of arguments for argp functions. */ +static const struct argp_option options[] = +{ + { NULL, 0, NULL, 0, N_("Output format:"), 0 }, + { "format", OPT_FORMAT, "FORMAT", 0, + N_("Use the output format FORMAT. FORMAT can be `bsd' or `sysv'. " + "The default is `bsd'"), 0 }, + { NULL, 'A', NULL, 0, N_("Same as `--format=sysv'"), 0 }, + { NULL, 'B', NULL, 0, N_("Same as `--format=bsd'"), 0 }, + { "radix", OPT_RADIX, "RADIX", 0, N_("Use RADIX for printing symbol values"), + 0}, + { NULL, 'd', NULL, 0, N_("Same as `--radix=10'"), 0 }, + { NULL, 'o', NULL, 0, N_("Same as `--radix=8'"), 0 }, + { NULL, 'x', NULL, 0, N_("Same as `--radix=16'"), 0 }, + { NULL, 'f', NULL, 0, + N_("Similar to `--format=sysv' output but in one line"), 0 }, + + { NULL, 0, NULL, 0, N_("Output options:"), 0 }, + { NULL, 'F', NULL, 0, + N_("Print size and permission flags for loadable segments"), 0 }, + { "totals", 't', NULL, 0, N_("Display the total sizes (bsd only)"), 0 }, + { NULL, 0, NULL, 0, NULL, 0 } +}; + +/* Short description of program. */ +static const char doc[] = N_("\ +List section sizes of FILEs (a.out by default)."); + +/* Strings for arguments in help texts. */ +static const char args_doc[] = N_("[FILE...]"); + +/* Prototype for option handler. */ +static error_t parse_opt (int key, char *arg, struct argp_state *state); + +/* Data structure to communicate with argp functions. */ +static struct argp argp = +{ + options, parse_opt, args_doc, doc, NULL, NULL, NULL +}; + + +/* Print symbols in file named FNAME. */ +static int process_file (const char *fname); + +/* Handle content of archive. */ +static int handle_ar (int fd, Elf *elf, const char *prefix, const char *fname); + +/* Handle ELF file. */ +static void handle_elf (Elf *elf, const char *fullname, const char *fname); + +/* Show total size. */ +static void show_bsd_totals (void); + +#define INTERNAL_ERROR(fname) \ + error (EXIT_FAILURE, 0, gettext ("%s: INTERNAL ERROR %d (%s-%s): %s"), \ + fname, __LINE__, VERSION, __DATE__, elf_errmsg (-1)) + + +/* User-selectable options. */ + +/* The selected output format. */ +static enum +{ + format_bsd = 0, + format_sysv, + format_sysv_one_line, + format_segments +} format; + +/* Radix for printed numbers. */ +static enum +{ + radix_decimal = 0, + radix_hex, + radix_octal +} radix; + + +/* Mapping of radix and binary class to length. */ +static const int length_map[2][3] = +{ + [ELFCLASS32 - 1] = + { + [radix_hex] = 8, + [radix_decimal] = 10, + [radix_octal] = 11 + }, + [ELFCLASS64 - 1] = + { + [radix_hex] = 16, + [radix_decimal] = 20, + [radix_octal] = 22 + } +}; + +/* True if total sizes should be printed. */ +static bool totals; +/* To print the total sizes in a reasonable format remember the higest + "class" of ELF binaries processed. */ +static int totals_class; + + +int +main (int argc, char *argv[]) +{ + int remaining; + int result = 0; + + /* Make memory leak detection possible. */ + mtrace (); + + /* We use no threads here which can interfere with handling a stream. */ + __fsetlocking (stdin, FSETLOCKING_BYCALLER); + __fsetlocking (stdout, FSETLOCKING_BYCALLER); + __fsetlocking (stderr, FSETLOCKING_BYCALLER); + + /* Set locale. */ + setlocale (LC_ALL, ""); + + /* Make sure the message catalog can be found. */ + bindtextdomain (PACKAGE, LOCALEDIR); + + /* Initialize the message catalog. */ + textdomain (PACKAGE); + + /* Parse and process arguments. */ + argp_parse (&argp, argc, argv, 0, &remaining, NULL); + + + /* Tell the library which version we are expecting. */ + elf_version (EV_CURRENT); + + if (remaining == argc) + /* The user didn't specify a name so we use a.out. */ + result = process_file ("a.out"); + else + /* Process all the remaining files. */ + do + result |= process_file (argv[remaining]); + while (++remaining < argc); + + /* Print the total sizes but only if the output format is BSD and at + least one file has been correctly read (i.e., we recognized the + class). */ + if (totals && format == format_bsd && totals_class != 0) + show_bsd_totals (); + + return result; +} + + +/* Print the version information. */ +static void +print_version (FILE *stream, struct argp_state *state __attribute__ ((unused))) +{ + fprintf (stream, "size (%s) %s\n", PACKAGE_NAME, VERSION); + fprintf (stream, gettext ("\ +Copyright (C) %s Red Hat, Inc.\n\ +This is free software; see the source for copying conditions. There is NO\n\ +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ +"), "2005"); + fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); +} + + +/* Handle program arguments. */ +static error_t +parse_opt (int key, char *arg, + struct argp_state *state __attribute__ ((unused))) +{ + switch (key) + { + case 'd': + radix = radix_decimal; + break; + + case 'f': + format = format_sysv_one_line; + break; + + case 'o': + radix = radix_octal; + break; + + case 'x': + radix = radix_hex; + break; + + case 'A': + format = format_sysv; + break; + + case 'B': + format = format_bsd; + break; + + case 'F': + format = format_segments; + break; + + case OPT_FORMAT: + if (strcmp (arg, "bsd") == 0 || strcmp (arg, "berkeley") == 0) + format = format_bsd; + else if (strcmp (arg, "sysv") == 0) + format = format_sysv; + else + error (EXIT_FAILURE, 0, gettext ("Invalid format: %s"), arg); + break; + + case OPT_RADIX: + if (strcmp (arg, "x") == 0 || strcmp (arg, "16") == 0) + radix = radix_hex; + else if (strcmp (arg, "d") == 0 || strcmp (arg, "10") == 0) + radix = radix_decimal; + else if (strcmp (arg, "o") == 0 || strcmp (arg, "8") == 0) + radix = radix_octal; + else + error (EXIT_FAILURE, 0, gettext ("Invalid radix: %s"), arg); + break; + + case 't': + totals = true; + break; + + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + + +static int +process_file (const char *fname) +{ + /* Open the file and determine the type. */ + int fd; + Elf *elf; + + /* Open the file. */ + fd = open (fname, O_RDONLY); + if (fd == -1) + { + error (0, errno, gettext ("cannot open '%s"), fname); + return 1; + } + + /* Now get the ELF descriptor. */ + elf = elf_begin (fd, ELF_C_READ_MMAP, NULL); + if (elf != NULL) + { + if (elf_kind (elf) == ELF_K_ELF) + { + handle_elf (elf, NULL, fname); + + if (elf_end (elf) != 0) + INTERNAL_ERROR (fname); + + if (close (fd) != 0) + error (EXIT_FAILURE, errno, gettext ("while close '%s'"), fname); + + return 0; + } + else + return handle_ar (fd, elf, NULL, fname); + + /* We cannot handle this type. Close the descriptor anyway. */ + if (elf_end (elf) != 0) + INTERNAL_ERROR (fname); + } + + error (0, 0, gettext ("%s: file format not recognized"), fname); + + return 1; +} + + +/* Print the BSD-style header. This is done exactly once. */ +static void +print_header (Elf *elf) +{ + static int done; + + if (! done) + { + int ddigits = length_map[gelf_getclass (elf) - 1][radix_decimal]; + int xdigits = length_map[gelf_getclass (elf) - 1][radix_hex]; + + printf ("%*s %*s %*s %*s %*s %s\n", + ddigits - 2, sgettext ("bsd|text"), + ddigits - 2, sgettext ("bsd|data"), + ddigits - 2, sgettext ("bsd|bss"), + ddigits - 2, sgettext ("bsd|dec"), + xdigits - 2, sgettext ("bsd|hex"), + sgettext ("bsd|filename")); + + done = 1; + } +} + + +static int +handle_ar (int fd, Elf *elf, const char *prefix, const char *fname) +{ + Elf *subelf; + Elf_Cmd cmd = ELF_C_READ_MMAP; + size_t prefix_len = prefix == NULL ? 0 : strlen (prefix); + size_t fname_len = strlen (fname) + 1; + char new_prefix[prefix_len + 1 + fname_len]; + int result = 0; + char *cp = new_prefix; + + /* Create the full name of the file. */ + if (prefix != NULL) + { + cp = mempcpy (cp, prefix, prefix_len); + *cp++ = ':'; + } + memcpy (cp, fname, fname_len); + + /* Process all the files contained in the archive. */ + while ((subelf = elf_begin (fd, cmd, elf)) != NULL) + { + /* The the header for this element. */ + Elf_Arhdr *arhdr = elf_getarhdr (subelf); + + if (elf_kind (subelf) == ELF_K_ELF) + handle_elf (subelf, new_prefix, arhdr->ar_name); + else if (elf_kind (subelf) == ELF_K_AR) + result |= handle_ar (fd, subelf, new_prefix, arhdr->ar_name); + /* else signal error??? */ + + /* Get next archive element. */ + cmd = elf_next (subelf); + if (elf_end (subelf) != 0) + INTERNAL_ERROR (fname); + } + + if (elf_end (elf) != 0) + INTERNAL_ERROR (fname); + + if (close (fd) != 0) + error (EXIT_FAILURE, errno, gettext ("while closing `%s'"), fname); + + return result; +} + + +/* Show sizes in SysV format. */ +static void +show_sysv (Elf *elf, const char *prefix, const char *fname, + const char *fullname) +{ + size_t shstrndx; + Elf_Scn *scn = NULL; + GElf_Shdr shdr_mem; + int maxlen = 10; + int digits = length_map[gelf_getclass (elf) - 1][radix]; + const char *fmtstr; + GElf_Off total = 0; + + /* Get the section header string table index. */ + if (elf_getshstrndx (elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + /* First round over the sections: determine the longest section name. */ + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr == NULL) + INTERNAL_ERROR (fullname); + + /* Ignore all sections which are not used at runtime. */ + if ((shdr->sh_flags & SHF_ALLOC) != 0) + maxlen = MAX (maxlen, + (int) strlen (elf_strptr (elf, shstrndx, + shdr->sh_name))); + } + + fputs_unlocked (fname, stdout); + if (prefix != NULL) + printf (gettext (" (ex %s)"), prefix); + printf (":\n%-*s %*s %*s\n", + maxlen, sgettext ("sysv|section"), + digits - 2, sgettext ("sysv|size"), + digits, sgettext ("sysv|addr")); + + if (radix == radix_hex) + fmtstr = "%-*s %*" PRIx64 " %*" PRIx64 "\n"; + else if (radix == radix_decimal) + fmtstr = "%-*s %*" PRId64 " %*" PRId64 "\n"; + else + fmtstr = "%-*s %*" PRIo64 " %*" PRIo64 "\n"; + + /* Iterate over all sections. */ + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + /* Ignore all sections which are not used at runtime. */ + if ((shdr->sh_flags & SHF_ALLOC) != 0) + { + printf (fmtstr, + maxlen, elf_strptr (elf, shstrndx, shdr->sh_name), + digits - 2, shdr->sh_size, + digits, shdr->sh_addr); + + total += shdr->sh_size; + } + } + + if (radix == radix_hex) + printf ("%-*s %*" PRIx64 "\n\n\n", maxlen, sgettext ("sysv|Total"), + digits - 2, total); + else if (radix == radix_decimal) + printf ("%-*s %*" PRId64 "\n\n\n", maxlen, sgettext ("sysv|Total"), + digits - 2, total); + else + printf ("%-*s %*" PRIo64 "\n\n\n", maxlen, sgettext ("sysv|Total"), + digits - 2, total); +} + + +/* Show sizes in SysV format in one line. */ +static void +show_sysv_one_line (Elf *elf) +{ + size_t shstrndx; + Elf_Scn *scn = NULL; + GElf_Shdr shdr_mem; + const char *fmtstr; + GElf_Off total = 0; + int first = 1; + + /* Get the section header string table index. */ + if (elf_getshstrndx (elf, &shstrndx) < 0) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + if (radix == radix_hex) + fmtstr = "%" PRIx64 "(%s)"; + else if (radix == radix_decimal) + fmtstr = "%" PRId64 "(%s)"; + else + fmtstr = "%" PRIo64 "(%s)"; + + /* Iterate over all sections. */ + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + /* Ignore all sections which are not used at runtime. */ + if ((shdr->sh_flags & SHF_ALLOC) == 0) + continue; + + if (! first) + fputs_unlocked (" + ", stdout); + first = 0; + + printf (fmtstr, shdr->sh_size, + elf_strptr (elf, shstrndx, shdr->sh_name)); + + total += shdr->sh_size; + } + + if (radix == radix_hex) + printf (" = %#" PRIx64 "\n", total); + else if (radix == radix_decimal) + printf (" = %" PRId64 "\n", total); + else + printf (" = %" PRIo64 "\n", total); +} + + +/* Variables to add up the sizes of all files. */ +static uintmax_t total_textsize; +static uintmax_t total_datasize; +static uintmax_t total_bsssize; + + +/* Show sizes in BSD format. */ +static void +show_bsd (Elf *elf, const char *prefix, const char *fname, + const char *fullname) +{ + Elf_Scn *scn = NULL; + GElf_Shdr shdr_mem; + GElf_Off textsize = 0; + GElf_Off datasize = 0; + GElf_Off bsssize = 0; + int ddigits = length_map[gelf_getclass (elf) - 1][radix_decimal]; + int xdigits = length_map[gelf_getclass (elf) - 1][radix_hex]; + + /* Iterate over all sections. */ + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + + if (shdr == NULL) + INTERNAL_ERROR (fullname); + + /* Ignore all sections which are not marked as loaded. */ + if ((shdr->sh_flags & SHF_ALLOC) == 0) + continue; + + if ((shdr->sh_flags & SHF_WRITE) == 0) + textsize += shdr->sh_size; + else if (shdr->sh_type == SHT_NOBITS) + bsssize += shdr->sh_size; + else + datasize += shdr->sh_size; + } + + printf ("%*" PRId64 " %*" PRId64 " %*" PRId64 " %*" PRId64 " %*" + PRIx64 " %s", + ddigits - 2, textsize, + ddigits - 2, datasize, + ddigits - 2, bsssize, + ddigits - 2, textsize + datasize + bsssize, + xdigits - 2, textsize + datasize + bsssize, + fname); + if (prefix != NULL) + printf (gettext (" (ex %s)"), prefix); + fputs_unlocked ("\n", stdout); + + total_textsize += textsize; + total_datasize += datasize; + total_bsssize += bsssize; + + totals_class = MAX (totals_class, gelf_getclass (elf)); +} + + +/* Show total size. */ +static void +show_bsd_totals (void) +{ + int ddigits = length_map[totals_class - 1][radix_decimal]; + int xdigits = length_map[totals_class - 1][radix_hex]; + + printf ("%*" PRIuMAX " %*" PRIuMAX " %*" PRIuMAX " %*" PRIuMAX " %*" + PRIxMAX " %s", + ddigits - 2, total_textsize, + ddigits - 2, total_datasize, + ddigits - 2, total_bsssize, + ddigits - 2, total_textsize + total_datasize + total_bsssize, + xdigits - 2, total_textsize + total_datasize + total_bsssize, + gettext ("(TOTALS)\n")); +} + + +/* Show size and permission of loadable segments. */ +static void +show_segments (Elf *elf, const char *fullname) +{ + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + size_t cnt; + GElf_Off total = 0; + int first = 1; + + ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + INTERNAL_ERROR (fullname); + + for (cnt = 0; cnt < ehdr->e_phnum; ++cnt) + { + GElf_Phdr phdr_mem; + GElf_Phdr *phdr; + + phdr = gelf_getphdr (elf, cnt, &phdr_mem); + if (phdr == NULL) + INTERNAL_ERROR (fullname); + + if (phdr->p_type != PT_LOAD) + /* Only load segments. */ + continue; + + if (! first) + fputs_unlocked (" + ", stdout); + first = 0; + + printf (radix == radix_hex ? "%" PRIx64 "(%c%c%c)" + : (radix == radix_decimal ? "%" PRId64 "(%c%c%c)" + : "%" PRIo64 "(%c%c%c)"), + phdr->p_memsz, + (phdr->p_flags & PF_R) == 0 ? '-' : 'r', + (phdr->p_flags & PF_W) == 0 ? '-' : 'w', + (phdr->p_flags & PF_X) == 0 ? '-' : 'x'); + + total += phdr->p_memsz; + } + + if (radix == radix_hex) + printf (" = %#" PRIx64 "\n", total); + else if (radix == radix_decimal) + printf (" = %" PRId64 "\n", total); + else + printf (" = %" PRIo64 "\n", total); +} + + +static void +handle_elf (Elf *elf, const char *prefix, const char *fname) +{ + size_t prefix_len = prefix == NULL ? 0 : strlen (prefix); + size_t fname_len = strlen (fname) + 1; + char fullname[prefix_len + 1 + fname_len]; + char *cp = fullname; + + /* Create the full name of the file. */ + if (prefix != NULL) + { + cp = mempcpy (cp, prefix, prefix_len); + *cp++ = ':'; + } + memcpy (cp, fname, fname_len); + + if (format == format_sysv) + show_sysv (elf, prefix, fname, fullname); + else if (format == format_sysv_one_line) + show_sysv_one_line (elf); + else if (format == format_segments) + show_segments (elf, fullname); + else + { + print_header (elf); + + show_bsd (elf, prefix, fname, fullname); + } +} diff --git a/src/strip.c b/src/strip.c new file mode 100644 index 0000000..214513c --- /dev/null +++ b/src/strip.c @@ -0,0 +1,1750 @@ +/* Discard section not used at runtime from object files. + Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + + +/* Name and version of program. */ +static void print_version (FILE *stream, struct argp_state *state); +void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; + +/* Bug report address. */ +const char *argp_program_bug_address = PACKAGE_BUGREPORT; + + +/* Values for the parameters which have no short form. */ +#define OPT_REMOVE_COMMENT 0x100 +#define OPT_PERMISSIVE 0x101 + + +/* Definitions of arguments for argp functions. */ +static const struct argp_option options[] = +{ + { NULL, 0, NULL, 0, N_("Output selection:"), 0 }, + { NULL, 'o', "FILE", 0, N_("Place stripped output into FILE"), 0 }, + { NULL, 'f', "FILE", 0, N_("Extract the removed sections into FILE"), 0 }, + { NULL, 'F', "FILE", 0, N_("Embed name FILE instead of -f argument"), 0 }, + + { NULL, 0, NULL, 0, N_("Output options:"), 0 }, + { "strip-debug", 'g', NULL, 0, N_("Remove all debugging symbols"), 0 }, + { "preserve-dates", 'p', NULL, 0, + N_("Copy modified/access timestamps to the output"), 0 }, + { "remove-comment", OPT_REMOVE_COMMENT, NULL, 0, + N_("Remove .comment section"), 0 }, + { "permissive", OPT_PERMISSIVE, NULL, 0, + N_("Relax a few rules to handle slightly broken ELF files"), 0 }, + { NULL, 0, NULL, 0, NULL, 0 } +}; + +/* Short description of program. */ +static const char doc[] = N_("Discard symbols from object files."); + +/* Strings for arguments in help texts. */ +static const char args_doc[] = N_("[FILE...]"); + +/* Prototype for option handler. */ +static error_t parse_opt (int key, char *arg, struct argp_state *state); + +/* Data structure to communicate with argp functions. */ +static struct argp argp = +{ + options, parse_opt, args_doc, doc, NULL, NULL, NULL +}; + + +/* Print symbols in file named FNAME. */ +static int process_file (const char *fname); + +/* Handle one ELF file. */ +static int handle_elf (int fd, Elf *elf, const char *prefix, + const char *fname, mode_t mode, struct timeval tvp[2]); + +/* Handle all files contained in the archive. */ +static int handle_ar (int fd, Elf *elf, const char *prefix, const char *fname, + struct timeval tvp[2]); + +#define INTERNAL_ERROR(fname) \ + error (EXIT_FAILURE, 0, gettext ("%s: INTERNAL ERROR %d (%s-%s): %s"), \ + fname, __LINE__, VERSION, __DATE__, elf_errmsg (-1)) + + +/* Name of the output file. */ +static const char *output_fname; + +/* Name of the debug output file. */ +static const char *debug_fname; + +/* Name to pretend the debug output file has. */ +static const char *debug_fname_embed; + +/* If true output files shall have same date as the input file. */ +static bool preserve_dates; + +/* If true .comment sections will be removed. */ +static bool remove_comment; + +/* If true remove all debug sections. */ +static bool remove_debug; + +/* If true relax some ELF rules for input files. */ +static bool permissive; + + +int +main (int argc, char *argv[]) +{ + int remaining; + int result = 0; + + /* Make memory leak detection possible. */ + mtrace (); + + /* We use no threads here which can interfere with handling a stream. */ + __fsetlocking (stdin, FSETLOCKING_BYCALLER); + __fsetlocking (stdout, FSETLOCKING_BYCALLER); + __fsetlocking (stderr, FSETLOCKING_BYCALLER); + + /* Set locale. */ + setlocale (LC_ALL, ""); + + /* Make sure the message catalog can be found. */ + bindtextdomain (PACKAGE, LOCALEDIR); + + /* Initialize the message catalog. */ + textdomain (PACKAGE); + + /* Parse and process arguments. */ + if (argp_parse (&argp, argc, argv, 0, &remaining, NULL) != 0) + return EXIT_FAILURE; + + /* Tell the library which version we are expecting. */ + elf_version (EV_CURRENT); + + if (remaining == argc) + /* The user didn't specify a name so we use a.out. */ + result = process_file ("a.out"); + else + { + /* If we have seen the '-o' or '-f' option there must be exactly one + input file. */ + if ((output_fname != NULL || debug_fname != NULL) + && remaining + 1 < argc) + error (EXIT_FAILURE, 0, gettext ("\ +Only one input file allowed together with '-o' and '-f'")); + + /* Process all the remaining files. */ + do + result |= process_file (argv[remaining]); + while (++remaining < argc); + } + + return result; +} + + +/* Print the version information. */ +static void +print_version (FILE *stream, struct argp_state *state __attribute__ ((unused))) +{ + fprintf (stream, "strip (%s) %s\n", PACKAGE_NAME, VERSION); + fprintf (stream, gettext ("\ +Copyright (C) %s Red Hat, Inc.\n\ +This is free software; see the source for copying conditions. There is NO\n\ +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ +"), "2005"); + fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); +} + + +/* Handle program arguments. */ +static error_t +parse_opt (int key, char *arg, + struct argp_state *state __attribute__ ((unused))) +{ + switch (key) + { + case 'f': + if (debug_fname != NULL) + { + error (0, 0, gettext ("-f option specified twice")); + return EINVAL; + } + debug_fname = arg; + break; + + case 'F': + if (debug_fname_embed != NULL) + { + error (0, 0, gettext ("-F option specified twice")); + return EINVAL; + } + debug_fname_embed = arg; + break; + + case 'o': + if (output_fname != NULL) + { + error (0, 0, gettext ("-o option specified twice")); + return EINVAL; + } + output_fname = arg; + break; + + case 'p': + preserve_dates = true; + break; + + case OPT_REMOVE_COMMENT: + remove_comment = true; + break; + + case 'g': + remove_debug = true; + break; + + case OPT_PERMISSIVE: + permissive = true; + break; + + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} + + +static int +process_file (const char *fname) +{ + /* If we have to preserve the modify and access timestamps get them + now. We cannot use fstat() after opening the file since the open + would change the access time. */ + struct stat64 pre_st; + struct timeval tv[2]; + again: + if (preserve_dates) + { + if (stat64 (fname, &pre_st) != 0) + { + error (0, errno, gettext ("cannot stat input file \"%s\""), fname); + return 1; + } + + /* If we have to preserve the timestamp, we need it in the + format utimes() understands. */ + TIMESPEC_TO_TIMEVAL (&tv[0], &pre_st.st_atim); + TIMESPEC_TO_TIMEVAL (&tv[1], &pre_st.st_mtim); + } + + /* Open the file. */ + int fd = open (fname, O_RDWR); + if (fd == -1) + { + error (0, errno, gettext ("while opening \"%s\""), fname); + return 1; + } + + /* We always use fstat() even if we called stat() before. This is + done to make sure the information returned by stat() is for the + same file. */ + struct stat64 st; + if (fstat64 (fd, &st) != 0) + { + error (0, errno, gettext ("cannot stat input file \"%s\""), fname); + return 1; + } + /* Paranoid mode on. */ + if (preserve_dates + && (st.st_ino != pre_st.st_ino || st.st_dev != pre_st.st_dev)) + { + /* We detected a race. Try again. */ + close (fd); + goto again; + } + + /* Now get the ELF descriptor. */ + Elf *elf = elf_begin (fd, ELF_C_RDWR, NULL); + int result; + switch (elf_kind (elf)) + { + case ELF_K_ELF: + result = handle_elf (fd, elf, NULL, fname, st.st_mode & ACCESSPERMS, + preserve_dates ? tv : NULL); + break; + + case ELF_K_AR: + /* It is not possible to strip the content of an archive direct + the output to a specific file. */ + if (unlikely (output_fname != NULL)) + { + error (0, 0, gettext ("%s: cannot use -o when stripping archive"), + fname); + result = 1; + } + else + result = handle_ar (fd, elf, NULL, fname, preserve_dates ? tv : NULL); + break; + + default: + error (0, 0, gettext ("%s: File format not recognized"), fname); + result = 1; + break; + } + + if (unlikely (elf_end (elf) != 0)) + INTERNAL_ERROR (fname); + + close (fd); + + return result; +} + + +/* Maximum size of array allocated on stack. */ +#define MAX_STACK_ALLOC (400 * 1024) + +static int +handle_elf (int fd, Elf *elf, const char *prefix, const char *fname, + mode_t mode, struct timeval tvp[2]) +{ + size_t prefix_len = prefix == NULL ? 0 : strlen (prefix); + size_t fname_len = strlen (fname) + 1; + char *fullname = alloca (prefix_len + 1 + fname_len); + char *cp = fullname; + Elf *newelf; + Elf *debugelf = NULL; + char *tmp_debug_fname = NULL; + int result = 0; + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + size_t shstrndx; + size_t shnum; + struct shdr_info + { + Elf_Scn *scn; + GElf_Shdr shdr; + Elf_Data *data; + const char *name; + Elf32_Word idx; /* Index in new file. */ + Elf32_Word old_sh_link; /* Original value of shdr.sh_link. */ + Elf32_Word symtab_idx; + Elf32_Word version_idx; + Elf32_Word group_idx; + Elf32_Word group_cnt; + Elf_Scn *newscn; + struct Ebl_Strent *se; + Elf32_Word *newsymidx; + } *shdr_info = NULL; + Elf_Scn *scn; + size_t cnt; + size_t idx; + bool changes; + GElf_Ehdr newehdr_mem; + GElf_Ehdr *newehdr; + GElf_Ehdr debugehdr_mem; + GElf_Ehdr *debugehdr; + struct Ebl_Strtab *shst = NULL; + Elf_Data debuglink_crc_data; + bool any_symtab_changes = false; + Elf_Data *shstrtab_data = NULL; + + /* Create the full name of the file. */ + if (prefix != NULL) + { + cp = mempcpy (cp, prefix, prefix_len); + *cp++ = ':'; + } + memcpy (cp, fname, fname_len); + + /* If we are not replacing the input file open a new file here. */ + if (output_fname != NULL) + { + fd = open (output_fname, O_RDWR | O_CREAT, mode); + if (unlikely (fd == -1)) + { + error (0, errno, gettext ("cannot open '%s'"), output_fname); + return 1; + } + } + + int debug_fd = -1; + + /* Get the EBL handling. The -g option is currently the only reason + we need EBL so dont open the backend unless necessary. */ + Ebl *ebl = NULL; + if (remove_debug) + { + ebl = ebl_openbackend (elf); + if (ebl == NULL) + { + error (0, errno, gettext ("cannot open EBL backend")); + result = 1; + goto fail; + } + } + + /* Open the additional file the debug information will be stored in. */ + if (debug_fname != NULL) + { + /* Create a temporary file name. We do not want to overwrite + the debug file if the file would not contain any + information. */ + size_t debug_fname_len = strlen (debug_fname); + tmp_debug_fname = (char *) alloca (debug_fname_len + sizeof (".XXXXXX")); + strcpy (mempcpy (tmp_debug_fname, debug_fname, debug_fname_len), + ".XXXXXX"); + + debug_fd = mkstemp (tmp_debug_fname); + if (unlikely (debug_fd == -1)) + { + error (0, errno, gettext ("cannot open '%s'"), debug_fname); + result = 1; + goto fail; + } + } + + /* Get the information from the old file. */ + ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + INTERNAL_ERROR (fname); + + /* Get the section header string table index. */ + if (unlikely (elf_getshstrndx (elf, &shstrndx) < 0)) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + + /* We now create a new ELF descriptor for the same file. We + construct it almost exactly in the same way with some information + dropped. */ + if (output_fname != NULL) + newelf = elf_begin (fd, ELF_C_WRITE_MMAP, NULL); + else + newelf = elf_clone (elf, ELF_C_EMPTY); + + if (unlikely (gelf_newehdr (newelf, gelf_getclass (elf)) == 0) + || (ehdr->e_type != ET_REL + && unlikely (gelf_newphdr (newelf, ehdr->e_phnum) == 0))) + { + error (0, 0, gettext ("cannot create new file '%s': %s"), + output_fname, elf_errmsg (-1)); + goto fail; + } + + /* Copy over the old program header if needed. */ + if (ehdr->e_type != ET_REL) + for (cnt = 0; cnt < ehdr->e_phnum; ++cnt) + { + GElf_Phdr phdr_mem; + GElf_Phdr *phdr; + + phdr = gelf_getphdr (elf, cnt, &phdr_mem); + if (phdr == NULL + || unlikely (gelf_update_phdr (newelf, cnt, phdr) == 0)) + INTERNAL_ERROR (fname); + } + + if (debug_fname != NULL) + { + /* Also create an ELF descriptor for the debug file */ + debugelf = elf_begin (debug_fd, ELF_C_WRITE_MMAP, NULL); + if (unlikely (gelf_newehdr (debugelf, gelf_getclass (elf)) == 0) + || (ehdr->e_type != ET_REL + && unlikely (gelf_newphdr (debugelf, ehdr->e_phnum) == 0))) + { + error (0, 0, gettext ("cannot create new file '%s': %s"), + debug_fname, elf_errmsg (-1)); + goto fail_close; + } + + /* Copy over the old program header if needed. */ + if (ehdr->e_type != ET_REL) + for (cnt = 0; cnt < ehdr->e_phnum; ++cnt) + { + GElf_Phdr phdr_mem; + GElf_Phdr *phdr; + + phdr = gelf_getphdr (elf, cnt, &phdr_mem); + if (phdr == NULL + || unlikely (gelf_update_phdr (debugelf, cnt, phdr) == 0)) + INTERNAL_ERROR (fname); + } + } + + /* Number of sections. */ + if (unlikely (elf_getshnum (elf, &shnum) < 0)) + { + error (0, 0, gettext ("cannot determine number of sections: %s"), + elf_errmsg (-1)); + goto fail_close; + } + + /* Storage for section information. We leave room for two more + entries since we unconditionally create a section header string + table. Maybe some weird tool created an ELF file without one. + The other one is used for the debug link section. */ + if ((shnum + 2) * sizeof (struct shdr_info) > MAX_STACK_ALLOC) + shdr_info = (struct shdr_info *) xcalloc (shnum + 2, + sizeof (struct shdr_info)); + else + { + shdr_info = (struct shdr_info *) alloca ((shnum + 2) + * sizeof (struct shdr_info)); + memset (shdr_info, '\0', (shnum + 2) * sizeof (struct shdr_info)); + } + + /* Prepare section information data structure. */ + scn = NULL; + cnt = 1; + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + /* This should always be true (i.e., there should not be any + holes in the numbering). */ + assert (elf_ndxscn (scn) == cnt); + + shdr_info[cnt].scn = scn; + + /* Get the header. */ + if (gelf_getshdr (scn, &shdr_info[cnt].shdr) == NULL) + INTERNAL_ERROR (fname); + + /* Get the name of the section. */ + shdr_info[cnt].name = elf_strptr (elf, shstrndx, + shdr_info[cnt].shdr.sh_name); + if (shdr_info[cnt].name == NULL) + { + error (0, 0, gettext ("illformed file '%s'"), fname); + goto fail_close; + } + + /* Mark them as present but not yet investigated. */ + shdr_info[cnt].idx = 1; + + /* Remember the shdr.sh_link value. */ + shdr_info[cnt].old_sh_link = shdr_info[cnt].shdr.sh_link; + + /* Sections in files other than relocatable object files which + are not loaded can be freely moved by us. In relocatable + object files everything can be moved. */ + if (ehdr->e_type == ET_REL + || (shdr_info[cnt].shdr.sh_flags & SHF_ALLOC) == 0) + shdr_info[cnt].shdr.sh_offset = 0; + + /* If this is an extended section index table store an + appropriate reference. */ + if (unlikely (shdr_info[cnt].shdr.sh_type == SHT_SYMTAB_SHNDX)) + { + assert (shdr_info[shdr_info[cnt].shdr.sh_link].symtab_idx == 0); + shdr_info[shdr_info[cnt].shdr.sh_link].symtab_idx = cnt; + } + else if (unlikely (shdr_info[cnt].shdr.sh_type == SHT_GROUP)) + { + Elf32_Word *grpref; + size_t inner; + + /* Cross-reference the sections contained in the section + group. */ + shdr_info[cnt].data = elf_getdata (shdr_info[cnt].scn, NULL); + if (shdr_info[cnt].data == NULL) + INTERNAL_ERROR (fname); + + /* XXX Fix for unaligned access. */ + grpref = (Elf32_Word *) shdr_info[cnt].data->d_buf; + for (inner = 1; + inner < shdr_info[cnt].data->d_size / sizeof (Elf32_Word); + ++inner) + shdr_info[grpref[inner]].group_idx = cnt; + + if (inner == 1 || (inner == 2 && (grpref[0] & GRP_COMDAT) == 0)) + /* If the section group contains only one element and this + is n COMDAT section we can drop it right away. */ + shdr_info[cnt].idx = 0; + else + shdr_info[cnt].group_cnt = inner - 1; + } + else if (unlikely (shdr_info[cnt].shdr.sh_type == SHT_GNU_versym)) + { + assert (shdr_info[shdr_info[cnt].shdr.sh_link].version_idx == 0); + shdr_info[shdr_info[cnt].shdr.sh_link].version_idx = cnt; + } + + /* If this section is part of a group make sure it is not + discarded right away. */ + if ((shdr_info[cnt].shdr.sh_flags & SHF_GROUP) != 0) + { + assert (shdr_info[cnt].group_idx != 0); + + if (shdr_info[shdr_info[cnt].group_idx].idx == 0) + { + /* The section group section will be removed. */ + shdr_info[cnt].group_idx = 0; + shdr_info[cnt].shdr.sh_flags &= ~SHF_GROUP; + } + } + + /* Increment the counter. */ + ++cnt; + } + + /* Now determine which sections can go away. The general rule is that + all sections which are not used at runtime are stripped out. But + there are a few exceptions: + + - special sections named ".comment" and ".note" are kept + - OS or architecture specific sections are kept since we might not + know how to handle them + - if a section is referred to from a section which is not removed + in the sh_link or sh_info element it cannot be removed either + */ + for (cnt = 1; cnt < shnum; ++cnt) + /* Check whether the section can be removed. */ + if (ebl_section_strip_p (ebl, ehdr, &shdr_info[cnt].shdr, + shdr_info[cnt].name, remove_comment, + remove_debug)) + { + /* For now assume this section will be removed. */ + shdr_info[cnt].idx = 0; + + idx = shdr_info[cnt].group_idx; + while (idx != 0) + { + /* If the references section group is a normal section + group and has one element remaining, or if it is an + empty COMDAT section group it is removed. */ + bool is_comdat; + + /* The section group data is already loaded. */ + assert (shdr_info[idx].data != NULL); + + is_comdat = (((Elf32_Word *) shdr_info[idx].data->d_buf)[0] + & GRP_COMDAT) != 0; + + --shdr_info[idx].group_cnt; + if ((!is_comdat && shdr_info[idx].group_cnt == 1) + || (is_comdat && shdr_info[idx].group_cnt == 0)) + { + shdr_info[idx].idx = 0; + /* Continue recursively. */ + idx = shdr_info[idx].group_idx; + } + else + break; + } + } + + /* Mark the SHT_NULL section as handled. */ + shdr_info[0].idx = 2; + + + /* Handle exceptions: section groups and cross-references. We might + have to repeat this a few times since the resetting of the flag + might propagate. */ + do + { + changes = false; + + for (cnt = 1; cnt < shnum; ++cnt) + { + if (shdr_info[cnt].idx == 0) + { + /* If a relocation section is marked as being removed make + sure the section it is relocating is removed, too. */ + if ((shdr_info[cnt].shdr.sh_type == SHT_REL + || shdr_info[cnt].shdr.sh_type == SHT_RELA) + && shdr_info[shdr_info[cnt].shdr.sh_info].idx != 0) + shdr_info[cnt].idx = 1; + } + + if (shdr_info[cnt].idx == 1) + { + /* The content of symbol tables we don't remove must not + reference any section which we do remove. Otherwise + we cannot remove the section. */ + if (shdr_info[cnt].shdr.sh_type == SHT_DYNSYM + || shdr_info[cnt].shdr.sh_type == SHT_SYMTAB) + { + Elf_Data *symdata; + Elf_Data *xndxdata; + size_t elsize; + + /* Make sure the data is loaded. */ + if (shdr_info[cnt].data == NULL) + { + shdr_info[cnt].data + = elf_getdata (shdr_info[cnt].scn, NULL); + if (shdr_info[cnt].data == NULL) + INTERNAL_ERROR (fname); + } + symdata = shdr_info[cnt].data; + + /* If there is an extended section index table load it + as well. */ + if (shdr_info[cnt].symtab_idx != 0 + && shdr_info[shdr_info[cnt].symtab_idx].data == NULL) + { + assert (shdr_info[cnt].shdr.sh_type == SHT_SYMTAB); + + shdr_info[shdr_info[cnt].symtab_idx].data + = elf_getdata (shdr_info[shdr_info[cnt].symtab_idx].scn, + NULL); + if (shdr_info[shdr_info[cnt].symtab_idx].data == NULL) + INTERNAL_ERROR (fname); + } + xndxdata = shdr_info[shdr_info[cnt].symtab_idx].data; + + /* Go through all symbols and make sure the section they + reference is not removed. */ + elsize = gelf_fsize (elf, ELF_T_SYM, 1, ehdr->e_version); + + for (size_t inner = 0; + inner < shdr_info[cnt].data->d_size / elsize; + ++inner) + { + GElf_Sym sym_mem; + Elf32_Word xndx; + GElf_Sym *sym; + size_t scnidx; + + sym = gelf_getsymshndx (symdata, xndxdata, inner, + &sym_mem, &xndx); + if (sym == NULL) + INTERNAL_ERROR (fname); + + scnidx = sym->st_shndx; + if (scnidx == SHN_UNDEF || scnidx >= shnum + || (scnidx >= SHN_LORESERVE + && scnidx <= SHN_HIRESERVE + && scnidx != SHN_XINDEX) + /* Don't count in the section symbols. */ + || GELF_ST_TYPE (sym->st_info) == STT_SECTION) + /* This is no section index, leave it alone. */ + continue; + else if (scnidx == SHN_XINDEX) + scnidx = xndx; + + if (shdr_info[scnidx].idx == 0) + { + /* Mark this section as used. */ + shdr_info[scnidx].idx = 1; + changes |= scnidx < cnt; + } + } + } + + /* Cross referencing happens: + - for the cases the ELF specification says. That are + + SHT_DYNAMIC in sh_link to string table + + SHT_HASH in sh_link to symbol table + + SHT_REL and SHT_RELA in sh_link to symbol table + + SHT_SYMTAB and SHT_DYNSYM in sh_link to string table + + SHT_GROUP in sh_link to symbol table + + SHT_SYMTAB_SHNDX in sh_link to symbol table + Other (OS or architecture-specific) sections might as + well use this field so we process it unconditionally. + - references inside section groups + - specially marked references in sh_info if the SHF_INFO_LINK + flag is set + */ + + if (shdr_info[shdr_info[cnt].shdr.sh_link].idx == 0) + { + shdr_info[shdr_info[cnt].shdr.sh_link].idx = 1; + changes |= shdr_info[cnt].shdr.sh_link < cnt; + } + + /* Handle references through sh_info. */ + if (SH_INFO_LINK_P (&shdr_info[cnt].shdr) + && shdr_info[shdr_info[cnt].shdr.sh_info].idx == 0) + { + shdr_info[shdr_info[cnt].shdr.sh_info].idx = 1; + changes |= shdr_info[cnt].shdr.sh_info < cnt; + } + + /* Mark the section as investigated. */ + shdr_info[cnt].idx = 2; + } + } + } + while (changes); + + /* Copy the removed sections to the debug output file. + The ones that are not removed in the stripped file are SHT_NOBITS. */ + if (debug_fname != NULL) + { + for (cnt = 1; cnt < shnum; ++cnt) + { + Elf_Data *debugdata; + GElf_Shdr debugshdr; + bool discard_section; + + scn = elf_newscn (debugelf); + if (scn == NULL) + error (EXIT_FAILURE, 0, + gettext ("while generating output file: %s"), + elf_errmsg (-1)); + + discard_section = shdr_info[cnt].idx > 0 && cnt != ehdr->e_shstrndx; + + /* Set the section header in the new file. */ + debugshdr = shdr_info[cnt].shdr; + if (discard_section) + debugshdr.sh_type = SHT_NOBITS; + + if (unlikely (gelf_update_shdr (scn, &debugshdr)) == 0) + /* There cannot be any overflows. */ + INTERNAL_ERROR (fname); + + /* Get the data from the old file if necessary. */ + if (shdr_info[cnt].data == NULL) + { + shdr_info[cnt].data = elf_getdata (shdr_info[cnt].scn, NULL); + if (shdr_info[cnt].data == NULL) + INTERNAL_ERROR (fname); + } + + /* Set the data. This is done by copying from the old file. */ + debugdata = elf_newdata (scn); + if (debugdata == NULL) + INTERNAL_ERROR (fname); + + /* Copy the structure. This data may be modified in place + before we write out the file. */ + *debugdata = *shdr_info[cnt].data; + if (discard_section) + debugdata->d_buf = NULL; + } + + /* Finish the ELF header. Fill in the fields not handled by + libelf from the old file. */ + debugehdr = gelf_getehdr (debugelf, &debugehdr_mem); + if (debugehdr == NULL) + INTERNAL_ERROR (fname); + + memcpy (debugehdr->e_ident, ehdr->e_ident, EI_NIDENT); + debugehdr->e_type = ehdr->e_type; + debugehdr->e_machine = ehdr->e_machine; + debugehdr->e_version = ehdr->e_version; + debugehdr->e_entry = ehdr->e_entry; + debugehdr->e_flags = ehdr->e_flags; + debugehdr->e_shstrndx = ehdr->e_shstrndx; + + if (unlikely (gelf_update_ehdr (debugelf, debugehdr)) == 0) + { + error (0, 0, gettext ("%s: error while creating ELF header: %s"), + debug_fname, elf_errmsg (-1)); + result = 1; + goto fail_close; + } + } + + /* Mark the section header string table as unused, we will create + a new one. */ + shdr_info[shstrndx].idx = 0; + + /* We need a string table for the section headers. */ + shst = ebl_strtabinit (true); + if (shst == NULL) + error (EXIT_FAILURE, errno, gettext ("while preparing output for '%s'"), + output_fname ?: fname); + + /* Assign new section numbers. */ + shdr_info[0].idx = 0; + for (cnt = idx = 1; cnt < shnum; ++cnt) + if (shdr_info[cnt].idx > 0) + { + shdr_info[cnt].idx = idx++; + + /* Create a new section. */ + shdr_info[cnt].newscn = elf_newscn (newelf); + if (shdr_info[cnt].newscn == NULL) + error (EXIT_FAILURE, 0, gettext ("while generating output file: %s"), + elf_errmsg (-1)); + + assert (elf_ndxscn (shdr_info[cnt].newscn) == shdr_info[cnt].idx); + + /* Add this name to the section header string table. */ + shdr_info[cnt].se = ebl_strtabadd (shst, shdr_info[cnt].name, 0); + } + + /* Test whether we are doing anything at all. */ + if (cnt == idx) + /* Nope, all removable sections are already gone. */ + goto fail_close; + + /* Create the reference to the file with the debug info. */ + if (debug_fname != NULL) + { + char *debug_basename; + off_t crc_offset; + + /* Add the section header string table section name. */ + shdr_info[cnt].se = ebl_strtabadd (shst, ".gnu_debuglink", 15); + shdr_info[cnt].idx = idx++; + + /* Create the section header. */ + shdr_info[cnt].shdr.sh_type = SHT_PROGBITS; + shdr_info[cnt].shdr.sh_flags = 0; + shdr_info[cnt].shdr.sh_addr = 0; + shdr_info[cnt].shdr.sh_link = SHN_UNDEF; + shdr_info[cnt].shdr.sh_info = SHN_UNDEF; + shdr_info[cnt].shdr.sh_entsize = 0; + shdr_info[cnt].shdr.sh_addralign = 4; + /* We set the offset to zero here. Before we write the ELF file the + field must have the correct value. This is done in the final + loop over all section. Then we have all the information needed. */ + shdr_info[cnt].shdr.sh_offset = 0; + + /* Create the section. */ + shdr_info[cnt].newscn = elf_newscn (newelf); + if (shdr_info[cnt].newscn == NULL) + error (EXIT_FAILURE, 0, + gettext ("while create section header section: %s"), + elf_errmsg (-1)); + assert (elf_ndxscn (shdr_info[cnt].newscn) == shdr_info[cnt].idx); + + shdr_info[cnt].data = elf_newdata (shdr_info[cnt].newscn); + if (shdr_info[cnt].data == NULL) + error (EXIT_FAILURE, 0, gettext ("cannot allocate section data: %s"), + elf_errmsg (-1)); + + debug_basename = basename (debug_fname_embed ?: debug_fname); + crc_offset = strlen (debug_basename) + 1; + /* Align to 4 byte boundary */ + crc_offset = ((crc_offset - 1) & ~3) + 4; + + shdr_info[cnt].data->d_align = 4; + shdr_info[cnt].shdr.sh_size = shdr_info[cnt].data->d_size + = crc_offset + 4; + shdr_info[cnt].data->d_buf = xcalloc (1, shdr_info[cnt].data->d_size); + + strcpy (shdr_info[cnt].data->d_buf, debug_basename); + + /* Cache this Elf_Data describing the CRC32 word in the section. + We'll fill this in when we have written the debug file. */ + debuglink_crc_data = *shdr_info[cnt].data; + debuglink_crc_data.d_buf = ((char *) debuglink_crc_data.d_buf + + crc_offset); + debuglink_crc_data.d_size = 4; + + /* One more section done. */ + ++cnt; + } + + /* Index of the section header table in the shdr_info array. */ + size_t shdridx = cnt; + + /* Add the section header string table section name. */ + shdr_info[cnt].se = ebl_strtabadd (shst, ".shstrtab", 10); + shdr_info[cnt].idx = idx; + + /* Create the section header. */ + shdr_info[cnt].shdr.sh_type = SHT_STRTAB; + shdr_info[cnt].shdr.sh_flags = 0; + shdr_info[cnt].shdr.sh_addr = 0; + shdr_info[cnt].shdr.sh_link = SHN_UNDEF; + shdr_info[cnt].shdr.sh_info = SHN_UNDEF; + shdr_info[cnt].shdr.sh_entsize = 0; + /* We set the offset to zero here. Before we write the ELF file the + field must have the correct value. This is done in the final + loop over all section. Then we have all the information needed. */ + shdr_info[cnt].shdr.sh_offset = 0; + shdr_info[cnt].shdr.sh_addralign = 1; + + /* Create the section. */ + shdr_info[cnt].newscn = elf_newscn (newelf); + if (shdr_info[cnt].newscn == NULL) + error (EXIT_FAILURE, 0, + gettext ("while create section header section: %s"), + elf_errmsg (-1)); + assert (elf_ndxscn (shdr_info[cnt].newscn) == idx); + + /* Finalize the string table and fill in the correct indices in the + section headers. */ + shstrtab_data = elf_newdata (shdr_info[cnt].newscn); + if (shstrtab_data == NULL) + error (EXIT_FAILURE, 0, + gettext ("while create section header string table: %s"), + elf_errmsg (-1)); + ebl_strtabfinalize (shst, shstrtab_data); + + /* We have to set the section size. */ + shdr_info[cnt].shdr.sh_size = shstrtab_data->d_size; + + /* Update the section information. */ + GElf_Off lastoffset = 0; + for (cnt = 1; cnt <= shdridx; ++cnt) + if (shdr_info[cnt].idx > 0) + { + Elf_Data *newdata; + + scn = elf_getscn (newelf, shdr_info[cnt].idx); + assert (scn != NULL); + + /* Update the name. */ + shdr_info[cnt].shdr.sh_name = ebl_strtaboffset (shdr_info[cnt].se); + + /* Update the section header from the input file. Some fields + might be section indeces which now have to be adjusted. */ + if (shdr_info[cnt].shdr.sh_link != 0) + shdr_info[cnt].shdr.sh_link = + shdr_info[shdr_info[cnt].shdr.sh_link].idx; + + if (shdr_info[cnt].shdr.sh_type == SHT_GROUP) + { + assert (shdr_info[cnt].data != NULL); + + Elf32_Word *grpref = (Elf32_Word *) shdr_info[cnt].data->d_buf; + for (size_t inner = 0; + inner < shdr_info[cnt].data->d_size / sizeof (Elf32_Word); + ++inner) + grpref[inner] = shdr_info[grpref[inner]].idx; + } + + /* Handle the SHT_REL, SHT_RELA, and SHF_INFO_LINK flag. */ + if (SH_INFO_LINK_P (&shdr_info[cnt].shdr)) + shdr_info[cnt].shdr.sh_info = + shdr_info[shdr_info[cnt].shdr.sh_info].idx; + + /* Get the data from the old file if necessary. We already + created the data for the section header string table. */ + if (cnt < shnum) + { + if (shdr_info[cnt].data == NULL) + { + shdr_info[cnt].data = elf_getdata (shdr_info[cnt].scn, NULL); + if (shdr_info[cnt].data == NULL) + INTERNAL_ERROR (fname); + } + + /* Set the data. This is done by copying from the old file. */ + newdata = elf_newdata (scn); + if (newdata == NULL) + INTERNAL_ERROR (fname); + + /* Copy the structure. */ + *newdata = *shdr_info[cnt].data; + + /* We know the size. */ + shdr_info[cnt].shdr.sh_size = shdr_info[cnt].data->d_size; + + /* We have to adjust symtol tables. The st_shndx member might + have to be updated. */ + if (shdr_info[cnt].shdr.sh_type == SHT_DYNSYM + || shdr_info[cnt].shdr.sh_type == SHT_SYMTAB) + { + Elf_Data *versiondata = NULL; + Elf_Data *shndxdata = NULL; + + size_t elsize = gelf_fsize (elf, ELF_T_SYM, 1, + ehdr->e_version); + + if (shdr_info[cnt].symtab_idx != 0) + { + assert (shdr_info[cnt].shdr.sh_type == SHT_SYMTAB_SHNDX); + /* This section has extended section information. + We have to modify that information, too. */ + shndxdata = elf_getdata (shdr_info[shdr_info[cnt].symtab_idx].scn, + NULL); + + assert ((versiondata->d_size / sizeof (Elf32_Word)) + >= shdr_info[cnt].data->d_size / elsize); + } + + if (shdr_info[cnt].version_idx != 0) + { + assert (shdr_info[cnt].shdr.sh_type == SHT_DYNSYM); + /* This section has associated version + information. We have to modify that + information, too. */ + versiondata = elf_getdata (shdr_info[shdr_info[cnt].version_idx].scn, + NULL); + + assert ((versiondata->d_size / sizeof (GElf_Versym)) + >= shdr_info[cnt].data->d_size / elsize); + } + + shdr_info[cnt].newsymidx + = (Elf32_Word *) xcalloc (shdr_info[cnt].data->d_size + / elsize, sizeof (Elf32_Word)); + + bool last_was_local = true; + size_t destidx; + size_t inner; + for (destidx = inner = 1; + inner < shdr_info[cnt].data->d_size / elsize; + ++inner) + { + Elf32_Word sec; + GElf_Sym sym_mem; + Elf32_Word xshndx; + GElf_Sym *sym = gelf_getsymshndx (shdr_info[cnt].data, + shndxdata, inner, + &sym_mem, &xshndx); + if (sym == NULL) + INTERNAL_ERROR (fname); + + if (sym->st_shndx == SHN_UNDEF + || (sym->st_shndx >= shnum + && sym->st_shndx != SHN_XINDEX)) + { + /* This is no section index, leave it alone + unless it is moved. */ + if (destidx != inner + && gelf_update_symshndx (shdr_info[cnt].data, + shndxdata, + destidx, sym, + xshndx) == 0) + INTERNAL_ERROR (fname); + + shdr_info[cnt].newsymidx[inner] = destidx++; + + if (last_was_local + && GELF_ST_BIND (sym->st_info) != STB_LOCAL) + { + last_was_local = false; + shdr_info[cnt].shdr.sh_info = destidx - 1; + } + + continue; + } + + /* Get the full section index, if necessary from the + XINDEX table. */ + if (sym->st_shndx != SHN_XINDEX) + sec = shdr_info[sym->st_shndx].idx; + else + { + assert (shndxdata != NULL); + + sec = shdr_info[xshndx].idx; + } + + if (sec != 0) + { + GElf_Section nshndx; + Elf32_Word nxshndx; + + if (sec < SHN_LORESERVE) + { + nshndx = sec; + nxshndx = 0; + } + else + { + nshndx = SHN_XINDEX; + nxshndx = sec; + } + + assert (sec < SHN_LORESERVE || shndxdata != NULL); + + if ((inner != destidx || nshndx != sym->st_shndx + || (shndxdata != NULL && nxshndx != xshndx)) + && (sym->st_shndx = nshndx, + gelf_update_symshndx (shdr_info[cnt].data, + shndxdata, + destidx, sym, + nxshndx) == 0)) + INTERNAL_ERROR (fname); + + shdr_info[cnt].newsymidx[inner] = destidx++; + + if (last_was_local + && GELF_ST_BIND (sym->st_info) != STB_LOCAL) + { + last_was_local = false; + shdr_info[cnt].shdr.sh_info = destidx - 1; + } + } + else + /* This is a section symbol for a section which has + been removed. */ + assert (GELF_ST_TYPE (sym->st_info) == STT_SECTION); + } + + if (destidx != inner) + { + /* The size of the symbol table changed. */ + shdr_info[cnt].shdr.sh_size = newdata->d_size + = destidx * elsize; + any_symtab_changes = true; + } + else + { + /* The symbol table didn't really change. */ + free (shdr_info[cnt].newsymidx); + shdr_info[cnt].newsymidx = NULL; + } + } + } + + /* If we have to, compute the offset of the section. */ + if (shdr_info[cnt].shdr.sh_offset == 0) + shdr_info[cnt].shdr.sh_offset + = ((lastoffset + shdr_info[cnt].shdr.sh_addralign - 1) + & ~((GElf_Off) (shdr_info[cnt].shdr.sh_addralign - 1))); + + /* Set the section header in the new file. */ + if (unlikely (gelf_update_shdr (scn, &shdr_info[cnt].shdr) == 0)) + /* There cannot be any overflows. */ + INTERNAL_ERROR (fname); + + /* Remember the last section written so far. */ + GElf_Off filesz = (shdr_info[cnt].shdr.sh_type != SHT_NOBITS + ? shdr_info[cnt].shdr.sh_size : 0); + if (lastoffset < shdr_info[cnt].shdr.sh_offset + filesz) + lastoffset = shdr_info[cnt].shdr.sh_offset + filesz; + } + + /* Adjust symbol references if symbol tables changed. */ + if (any_symtab_changes) + { + /* Find all relocation sections which use this + symbol table. */ + for (cnt = 1; cnt <= shdridx; ++cnt) + { + if (shdr_info[cnt].idx == 0 && debug_fname == NULL) + /* Ignore sections which are discarded. When we are saving a + relocation section in a separate debug file, we must fix up + the symbol table references. */ + continue; + + if (shdr_info[cnt].shdr.sh_type == SHT_REL + || shdr_info[cnt].shdr.sh_type == SHT_RELA) + { + /* If the symbol table hasn't changed, do not do anything. */ + if (shdr_info[shdr_info[cnt].old_sh_link].newsymidx == NULL) + continue; + + Elf32_Word *newsymidx + = shdr_info[shdr_info[cnt].old_sh_link].newsymidx; + Elf_Data *d = elf_getdata (shdr_info[cnt].idx == 0 + ? elf_getscn (debugelf, cnt) + : elf_getscn (newelf, + shdr_info[cnt].idx), + NULL); + assert (d != NULL); + size_t nrels = (shdr_info[cnt].shdr.sh_size + / shdr_info[cnt].shdr.sh_entsize); + + if (shdr_info[cnt].shdr.sh_type == SHT_REL) + for (size_t relidx = 0; relidx < nrels; ++relidx) + { + GElf_Rel rel_mem; + if (gelf_getrel (d, relidx, &rel_mem) == NULL) + INTERNAL_ERROR (fname); + + size_t symidx = GELF_R_SYM (rel_mem.r_info); + if (newsymidx[symidx] != symidx) + { + rel_mem.r_info + = GELF_R_INFO (newsymidx[symidx], + GELF_R_TYPE (rel_mem.r_info)); + + if (gelf_update_rel (d, relidx, &rel_mem) == 0) + INTERNAL_ERROR (fname); + } + } + else + for (size_t relidx = 0; relidx < nrels; ++relidx) + { + GElf_Rela rel_mem; + if (gelf_getrela (d, relidx, &rel_mem) == NULL) + INTERNAL_ERROR (fname); + + size_t symidx = GELF_R_SYM (rel_mem.r_info); + if (newsymidx[symidx] != symidx) + { + rel_mem.r_info + = GELF_R_INFO (newsymidx[symidx], + GELF_R_TYPE (rel_mem.r_info)); + + if (gelf_update_rela (d, relidx, &rel_mem) == 0) + INTERNAL_ERROR (fname); + } + } + } + else if (shdr_info[cnt].shdr.sh_type == SHT_HASH) + { + /* We have to recompute the hash table. */ + Elf32_Word symtabidx = shdr_info[cnt].old_sh_link; + + /* We do not have to do anything if the symbol table was + not changed. */ + if (shdr_info[symtabidx].newsymidx == NULL) + continue; + + assert (shdr_info[cnt].idx > 0); + + /* The hash section in the new file. */ + scn = elf_getscn (newelf, shdr_info[cnt].idx); + + /* The symbol table data. */ + Elf_Data *symd = elf_getdata (elf_getscn (newelf, + shdr_info[symtabidx].idx), + NULL); + assert (symd != NULL); + + /* The hash table data. */ + Elf_Data *hashd = elf_getdata (scn, NULL); + assert (hashd != NULL); + + if (shdr_info[cnt].shdr.sh_entsize == sizeof (Elf32_Word)) + { + /* Sane arches first. */ + Elf32_Word *bucket = (Elf32_Word *) hashd->d_buf; + + size_t strshndx = shdr_info[symtabidx].old_sh_link; + size_t elsize = gelf_fsize (elf, ELF_T_SYM, 1, + ehdr->e_version); + + /* Adjust the nchain value. The symbol table size + changed. We keep the same size for the bucket array. */ + bucket[1] = symd->d_size / elsize; + Elf32_Word nbucket = bucket[0]; + bucket += 2; + Elf32_Word *chain = bucket + nbucket; + + /* New size of the section. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + shdr->sh_size = hashd->d_size + = (2 + symd->d_size / elsize + nbucket) + * sizeof (Elf32_Word); + (void) gelf_update_shdr (scn, shdr); + + /* Clear the arrays. */ + memset (bucket, '\0', + (symd->d_size / elsize + nbucket) + * sizeof (Elf32_Word)); + + for (size_t inner = shdr_info[symtabidx].shdr.sh_info; + inner < symd->d_size / elsize; ++inner) + { + GElf_Sym sym_mem; + GElf_Sym *sym = gelf_getsym (symd, inner, &sym_mem); + assert (sym != NULL); + + const char *name = elf_strptr (elf, strshndx, + sym->st_name); + assert (name != NULL); + size_t hidx = elf_hash (name) % nbucket; + + if (bucket[hidx] == 0) + bucket[hidx] = inner; + else + { + hidx = bucket[hidx]; + + while (chain[hidx] != 0) + hidx = chain[hidx]; + + chain[hidx] = inner; + } + } + } + else + { + /* Alpha and S390 64-bit use 64-bit SHT_HASH entries. */ + assert (shdr_info[cnt].shdr.sh_entsize + == sizeof (Elf64_Xword)); + + Elf64_Xword *bucket = (Elf64_Xword *) hashd->d_buf; + + size_t strshndx = shdr_info[symtabidx].old_sh_link; + size_t elsize = gelf_fsize (elf, ELF_T_SYM, 1, + ehdr->e_version); + + /* Adjust the nchain value. The symbol table size + changed. We keep the same size for the bucket array. */ + bucket[1] = symd->d_size / elsize; + Elf64_Xword nbucket = bucket[0]; + bucket += 2; + Elf64_Xword *chain = bucket + nbucket; + + /* New size of the section. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + shdr->sh_size = hashd->d_size + = (2 + symd->d_size / elsize + nbucket) + * sizeof (Elf64_Xword); + (void) gelf_update_shdr (scn, shdr); + + /* Clear the arrays. */ + memset (bucket, '\0', + (symd->d_size / elsize + nbucket) + * sizeof (Elf64_Xword)); + + for (size_t inner = shdr_info[symtabidx].shdr.sh_info; + inner < symd->d_size / elsize; ++inner) + { + GElf_Sym sym_mem; + GElf_Sym *sym = gelf_getsym (symd, inner, &sym_mem); + assert (sym != NULL); + + const char *name = elf_strptr (elf, strshndx, + sym->st_name); + assert (name != NULL); + size_t hidx = elf_hash (name) % nbucket; + + if (bucket[hidx] == 0) + bucket[hidx] = inner; + else + { + hidx = bucket[hidx]; + + while (chain[hidx] != 0) + hidx = chain[hidx]; + + chain[hidx] = inner; + } + } + } + } + else if (shdr_info[cnt].shdr.sh_type == SHT_GNU_versym) + { + /* If the symbol table changed we have to adjust the + entries. */ + Elf32_Word symtabidx = shdr_info[cnt].old_sh_link; + + /* We do not have to do anything if the symbol table was + not changed. */ + if (shdr_info[symtabidx].newsymidx == NULL) + continue; + + assert (shdr_info[cnt].idx > 0); + + /* The symbol version section in the new file. */ + scn = elf_getscn (newelf, shdr_info[cnt].idx); + + /* The symbol table data. */ + Elf_Data *symd = elf_getdata (elf_getscn (newelf, + shdr_info[symtabidx].idx), + NULL); + assert (symd != NULL); + + /* The version symbol data. */ + Elf_Data *verd = elf_getdata (scn, NULL); + assert (verd != NULL); + + /* The symbol version array. */ + GElf_Half *verstab = (GElf_Half *) verd->d_buf; + + /* New indices of the symbols. */ + Elf32_Word *newsymidx = shdr_info[symtabidx].newsymidx; + + /* Walk through the list and */ + size_t elsize = gelf_fsize (elf, verd->d_type, 1, + ehdr->e_version); + for (size_t inner = 1; inner < verd->d_size / elsize; ++inner) + if (newsymidx[inner] != 0) + /* Overwriting the same array works since the + reordering can only move entries to lower indices + in the array. */ + verstab[newsymidx[inner]] = verstab[inner]; + + /* New size of the section. */ + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + shdr->sh_size = verd->d_size + = gelf_fsize (newelf, verd->d_type, + symd->d_size / gelf_fsize (elf, symd->d_type, 1, + ehdr->e_version), + ehdr->e_version); + (void) gelf_update_shdr (scn, shdr); + } + else if (shdr_info[cnt].shdr.sh_type == SHT_GROUP) + { + /* Check whether the associated symbol table changed. */ + if (shdr_info[shdr_info[cnt].old_sh_link].newsymidx != NULL) + { + /* Yes the symbol table changed. Update the section + header of the section group. */ + scn = elf_getscn (newelf, shdr_info[cnt].idx); + GElf_Shdr shdr_mem; + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); + assert (shdr != NULL); + + size_t stabidx = shdr_info[cnt].old_sh_link; + shdr->sh_info = shdr_info[stabidx].newsymidx[shdr->sh_info]; + + (void) gelf_update_shdr (scn, shdr); + } + } + } + } + + /* Now that we have done all adjustments to the data, + we can actually write out the debug file. */ + if (debug_fname != NULL) + { + uint32_t debug_crc; + Elf_Data debug_crc_data = + { + .d_type = ELF_T_WORD, + .d_buf = &debug_crc, + .d_size = sizeof (debug_crc), + .d_version = EV_CURRENT + }; + + /* Finally write the file. */ + if (unlikely (elf_update (debugelf, ELF_C_WRITE)) == -1) + { + error (0, 0, gettext ("while writing '%s': %s"), + debug_fname, elf_errmsg (-1)); + result = 1; + goto fail_close; + } + + /* Create the real output file. First rename, then change the + mode. */ + if (rename (tmp_debug_fname, debug_fname) != 0 + || fchmod (debug_fd, mode) != 0) + { + error (0, errno, gettext ("while creating '%s'"), debug_fname); + result = 1; + goto fail_close; + } + + /* The temporary file does not exist anymore. */ + tmp_debug_fname = NULL; + + /* Compute the checksum which we will add to the executable. */ + if (crc32_file (debug_fd, &debug_crc) != 0) + { + error (0, errno, + gettext ("while computing checksum for debug information")); + unlink (debug_fname); + result = 1; + goto fail_close; + } + + /* Store it in the debuglink section data. */ + if (unlikely (gelf_xlatetof (newelf, &debuglink_crc_data, + &debug_crc_data, ehdr->e_ident[EI_DATA]) + != &debuglink_crc_data)) + INTERNAL_ERROR (fname); + } + + /* Finally finish the ELF header. Fill in the fields not handled by + libelf from the old file. */ + newehdr = gelf_getehdr (newelf, &newehdr_mem); + if (newehdr == NULL) + INTERNAL_ERROR (fname); + + memcpy (newehdr->e_ident, ehdr->e_ident, EI_NIDENT); + newehdr->e_type = ehdr->e_type; + newehdr->e_machine = ehdr->e_machine; + newehdr->e_version = ehdr->e_version; + newehdr->e_entry = ehdr->e_entry; + newehdr->e_flags = ehdr->e_flags; + newehdr->e_phoff = ehdr->e_phoff; + /* We need to position the section header table. */ + const size_t offsize = gelf_fsize (elf, ELF_T_OFF, 1, EV_CURRENT); + newehdr->e_shoff = ((shdr_info[shdridx].shdr.sh_offset + + shdr_info[shdridx].shdr.sh_size + offsize - 1) + & ~((GElf_Off) (offsize - 1))); + newehdr->e_shentsize = gelf_fsize (elf, ELF_T_SHDR, 1, EV_CURRENT); + + /* The new section header string table index. */ + if (likely (idx < SHN_HIRESERVE) && likely (idx != SHN_XINDEX)) + newehdr->e_shstrndx = idx; + else + { + /* The index does not fit in the ELF header field. */ + shdr_info[0].scn = elf_getscn (elf, 0); + + if (gelf_getshdr (shdr_info[0].scn, &shdr_info[0].shdr) == NULL) + INTERNAL_ERROR (fname); + + shdr_info[0].shdr.sh_link = idx; + (void) gelf_update_shdr (shdr_info[0].scn, &shdr_info[0].shdr); + + newehdr->e_shstrndx = SHN_XINDEX; + } + + if (gelf_update_ehdr (newelf, newehdr) == 0) + { + error (0, 0, gettext ("%s: error while creating ELF header: %s"), + fname, elf_errmsg (-1)); + return 1; + } + + /* We have everything from the old file. */ + if (elf_cntl (elf, ELF_C_FDDONE) != 0) + { + error (0, 0, gettext ("%s: error while reading the file: %s"), + fname, elf_errmsg (-1)); + return 1; + } + + /* The ELF library better follows our layout when this is not a + relocatable object file. */ + elf_flagelf (newelf, ELF_C_SET, + (ehdr->e_type != ET_REL ? ELF_F_LAYOUT : 0) + | (permissive ? ELF_F_PERMISSIVE : 0)); + + /* Finally write the file. */ + if (elf_update (newelf, ELF_C_WRITE) == -1) + { + error (0, 0, gettext ("while writing '%s': %s"), + fname, elf_errmsg (-1)); + result = 1; + } + + fail_close: + if (shdr_info != NULL) + { + /* For some sections we might have created an table to map symbol + table indices. */ + if (any_symtab_changes) + for (cnt = 1; cnt <= shdridx; ++cnt) + free (shdr_info[cnt].newsymidx); + + /* Free the memory. */ + if ((shnum + 2) * sizeof (struct shdr_info) > MAX_STACK_ALLOC) + free (shdr_info); + } + + /* Free other resources. */ + if (shstrtab_data != NULL) + free (shstrtab_data->d_buf); + if (shst != NULL) + ebl_strtabfree (shst); + + /* That was it. Close the descriptors. */ + if (elf_end (newelf) != 0) + { + error (0, 0, gettext ("error while finishing '%s': %s"), fname, + elf_errmsg (-1)); + result = 1; + } + + if (debugelf != NULL && elf_end (debugelf) != 0) + { + error (0, 0, gettext ("error while finishing '%s': %s"), debug_fname, + elf_errmsg (-1)); + result = 1; + } + + fail: + /* Close the EBL backend. */ + if (ebl != NULL) + ebl_closebackend (ebl); + + /* Close debug file descriptor, if opened */ + if (debug_fd >= 0) + { + if (tmp_debug_fname != NULL) + unlink (tmp_debug_fname); + close (debug_fd); + } + + /* If requested, preserve the timestamp. */ + if (tvp != NULL) + { + if (futimes (fd, tvp) != 0) + { + error (0, errno, gettext ("\ +cannot set access and modification date of '%s'"), + output_fname ?: fname); + result = 1; + } + } + + /* Close the file descriptor if we created a new file. */ + if (output_fname != NULL) + close (fd); + + return result; +} + + +static int +handle_ar (int fd, Elf *elf, const char *prefix, const char *fname, + struct timeval tvp[2]) +{ + size_t prefix_len = prefix == NULL ? 0 : strlen (prefix); + size_t fname_len = strlen (fname) + 1; + char new_prefix[prefix_len + 1 + fname_len]; + char *cp = new_prefix; + + /* Create the full name of the file. */ + if (prefix != NULL) + { + cp = mempcpy (cp, prefix, prefix_len); + *cp++ = ':'; + } + memcpy (cp, fname, fname_len); + + + /* Process all the files contained in the archive. */ + Elf *subelf; + Elf_Cmd cmd = ELF_C_RDWR; + int result = 0; + while ((subelf = elf_begin (fd, cmd, elf)) != NULL) + { + /* The the header for this element. */ + Elf_Arhdr *arhdr = elf_getarhdr (subelf); + + if (elf_kind (subelf) == ELF_K_ELF) + result |= handle_elf (fd, subelf, new_prefix, arhdr->ar_name, 0, NULL); + else if (elf_kind (subelf) == ELF_K_AR) + result |= handle_ar (fd, subelf, new_prefix, arhdr->ar_name, NULL); + + /* Get next archive element. */ + cmd = elf_next (subelf); + if (unlikely (elf_end (subelf) != 0)) + INTERNAL_ERROR (fname); + } + + if (tvp != NULL) + { + if (unlikely (futimes (fd, tvp) != 0)) + { + error (0, errno, gettext ("\ +cannot set access and modification date of '%s'"), fname); + result = 1; + } + } + + if (unlikely (close (fd) != 0)) + error (EXIT_FAILURE, errno, gettext ("while closing '%s'"), fname); + + return result; +} diff --git a/src/symbolhash.c b/src/symbolhash.c new file mode 100644 index 0000000..da2ae6f --- /dev/null +++ b/src/symbolhash.c @@ -0,0 +1,29 @@ +/* Symbol hash table implementation. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + +/* Definitions for the symbol hash table. */ +#define TYPE struct symbol * +#define NAME ld_symbol_tab +#define ITERATE 1 +#define COMPARE(a, b) strcmp ((a)->name, (b)->name) + +#include "../lib/dynamicsizehash.c" diff --git a/src/symbolhash.h b/src/symbolhash.h new file mode 100644 index 0000000..a8798c2 --- /dev/null +++ b/src/symbolhash.h @@ -0,0 +1,24 @@ +/* Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef SYMBOLHASH_H +#define SYMBOLHASH_H 1 + +/* Definitions for the symbol hash table. */ +#define TYPE struct symbol * +#define NAME ld_symbol_tab +#define ITERATE 1 +#define COMPARE(a, b) strcmp ((a)->name, (b)->name) +#include + +#endif /* symbolhash.h */ diff --git a/src/unaligned.h b/src/unaligned.h new file mode 100644 index 0000000..524b35c --- /dev/null +++ b/src/unaligned.h @@ -0,0 +1,98 @@ +/* Unaligned memory access functionality. + Copyright (C) 2000, 2001, 2002, 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef _UNALIGNED_H +#define _UNALIGNED_H 1 + +#include +#include + + +#ifndef UNALIGNED_ACCESS_CLASS +# error "UNALIGNED_ACCESS_CLASS must be defined" +#endif + + +/* Macros to convert from the host byte order to that of the object file. */ +#if UNALIGNED_ACCESS_CLASS == BYTE_ORDER +# define target_bswap_16(n) (n) +# define target_bswap_32(n) (n) +# define target_bswap_64(n) (n) +#else +# define target_bswap_16(n) bswap_16 (n) +# define target_bswap_32(n) bswap_32 (n) +# define target_bswap_64(n) bswap_64 (n) +#endif + + +union u_2ubyte_unaligned +{ + uint16_t u; + char c[2]; +} __attribute__((packed)); + +union u_4ubyte_unaligned +{ + uint32_t u; + char c[4]; +} __attribute__((packed)); + +union u_8ubyte_unaligned +{ + uint64_t u; + char c[8]; +} __attribute__((packed)); + + +/* Macros to store value at unaligned address. */ +#define store_2ubyte_unaligned(ptr, value) \ + (void) (((union u_2ubyte_unaligned *) (ptr))->u = target_bswap_16 (value)) +#define store_4ubyte_unaligned(ptr, value) \ + (void) (((union u_4ubyte_unaligned *) (ptr))->u = target_bswap_32 (value)) +#define store_8ubyte_unaligned(ptr, value) \ + (void) (((union u_8ubyte_unaligned *) (ptr))->u = target_bswap_64 (value)) + + +/* Macros to add value to unaligned address. This is a bit more + complicated since the value must be read from memory and eventually + converted twice. */ +#if UNALIGNED_ACCESS_CLASS == BYTE_ORDER +# define add_2ubyte_unaligned(ptr, value) \ + (void) (((union u_2ubyte_unaligned *) (ptr))->u += value) +# define add_4ubyte_unaligned(ptr, value) \ + (void) (((union u_4ubyte_unaligned *) (ptr))->u += value) +# define add_8ubyte_unaligned(ptr, value) \ + (void) (((union u_8ubyte_unaligned *) (ptr))->u += value) +#else +# define add_2ubyte_unaligned(ptr, value) \ + do { \ + union u_2ubyte_unaligned *_ptr = (ptr); \ + uint16_t _val = bswap_16 (_ptr->u) + (value); \ + _ptr->u = bswap_16 (_val); \ + } while (0) +# define add_4ubyte_unaligned(ptr, value) \ + do { \ + union u_4ubyte_unaligned *_ptr = (ptr); \ + uint32_t _val = bswap_32 (_ptr->u) + (value); \ + _ptr->u = bswap_32 (_val); \ + } while (0) +# define add_8ubyte_unaligned(ptr, value) \ + do { \ + union u_8ubyte_unaligned *_ptr = (ptr); \ + uint64_t _val = bswap_64 (_ptr->u) + (value); \ + _ptr->u = bswap_64 (_val); \ + } while (0) +#endif + +#endif /* unaligned.h */ diff --git a/src/versionhash.c b/src/versionhash.c new file mode 100644 index 0000000..79b2e10 --- /dev/null +++ b/src/versionhash.c @@ -0,0 +1,28 @@ +/* Version symbol hash table implementation. + Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + +#include + +/* Definitions for the symbol hash table. */ +#define TYPE struct id_list * +#define NAME ld_version_str_tab +#define COMPARE(a, b) strcmp ((a)->id, (b)->id) + +#include "../lib/dynamicsizehash.c" diff --git a/src/versionhash.h b/src/versionhash.h new file mode 100644 index 0000000..243aeeb --- /dev/null +++ b/src/versionhash.h @@ -0,0 +1,22 @@ +/* Copyright (C) 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2001. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifndef VERSIONHASH_H +#define VERSIONHASH_H 1 + +/* Definitions for the symbol hash table. */ +#define TYPE struct id_list * +#define NAME ld_version_str_tab +#include + +#endif /* versionhash.h */ diff --git a/src/xelf.h b/src/xelf.h new file mode 100644 index 0000000..ab36e00 --- /dev/null +++ b/src/xelf.h @@ -0,0 +1,387 @@ +/* Macros to enable writing native and generic ELF access code. + Copyright (C) 2003 Red Hat, Inc. + Written by Ulrich Drepper , 2003. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include + + +/* By default the linker is handling all architectures. But it can + be configured to be a native-only linker. */ +#if NATIVE_ELF == 32 +/* 32-bit only. */ +# define XElf_Ehdr Elf32_Ehdr +# define XElf_Shdr Elf32_Shdr +# define XElf_Off Elf32_Off +# define XElf_Addr Elf32_Addr +# define XElf_Half Elf32_Half +# define XElf_Word Elf32_Word +# define XElf_Xword Elf32_Word +# define XElf_Sxword Elf32_Sword +# define XElf_Versym Elf32_Versym +# define XElf_Sym Elf32_Sym +# define XElf_Rel Elf32_Rel +# define XElf_Rela Elf32_Rela + +# define XElf_Ehdr_vardef(name) Elf32_Ehdr *name +# define xelf_getehdr(elf, name) name = elf32_getehdr (elf) +# define xelf_getehdr_copy(elf, name, copy) \ + (copy) = *(name = elf32_getehdr (elf)) +# define xelf_newehdr(elf, klass) elf32_newehdr (elf) +# define xelf_update_ehdr(elf, ehdr) \ + /* nothing */ ((void) (elf), (void) (ehdr), 1) + +# define xelf_getclass(elf) ELFCLASS32 + +# define XElf_Phdr_vardef(name) Elf32_Phdr *name +# define xelf_newphdr(elf, n) elf32_newphdr (elf, n) +# define xelf_getphdr(elf, idx, name) name = elf32_getphdr (elf) + idx +# define xelf_getphdr_ptr(elf, idx, name) name = elf32_getphdr (elf) + idx +# define xelf_update_phdr(elf, idx, phdr) \ + /* nothing */ ((void) (elf), (void) (idx), (void) (phdr), 1) + +# define XElf_Shdr_vardef(name) Elf32_Shdr *name +# define xelf_getshdr(scn, name) name = elf32_getshdr (scn) +# define xelf_getshdr_copy(scn, name, copy) \ + (copy) = *(name = elf32_getshdr (scn)) +# define xelf_update_shdr(scn, shdr) \ + /* nothing */ ((void) (scn), (void) (shdr), 1) + +# define XElf_Sym_vardef(name) Elf32_Sym *name +# define xelf_getsym(data, idx, name) \ + name = &((Elf32_Sym *) (data)->d_buf)[idx] +# define xelf_getsym_ptr(data, idx, name) \ + name = &((Elf32_Sym *) (data)->d_buf)[idx] +# define xelf_getsymshndx(data, ndxdata, idx, name1, name2) \ + (name1 = &((Elf32_Sym *) ((data)->d_buf))[idx]); \ + name2 = (unlikely ((ndxdata) != NULL) \ + ? ((Elf32_Word *) ((ndxdata)->d_buf))[idx] : 0) +# define xelf_update_sym(data, idx, sym) \ + /* nothing */ ((void) (data), (void) (idx), (void) (sym), 1) +# define xelf_update_symshndx(data, ndxdata, idx, name1, name2, datachanged) \ + if (datachanged) \ + ((Elf32_Sym *) ((data)->d_buf))[idx] = *name1; \ + if (unlikely (ndxdata != NULL)) \ + ((Elf32_Word *) ((ndxdata)->d_buf))[idx] = name2 + +# define XElf_Versym_vardef(name) Elf32_Versym name +# define xelf_getversym_copy(data, idx, name) \ + (name = ((Elf32_Versym *) ((data)->d_buf))[idx], &name) + +# define XElf_Dyn_vardef(name) Elf32_Dyn *name +# define xelf_getdyn(data, idx, name) \ + name = &((Elf32_Dyn *) ((data)->d_buf))[idx] +# define xelf_getdyn_ptr(data, idx, name) \ + name = &((Elf32_Dyn *) ((data)->d_buf))[idx] +# define xelf_update_dyn(data, idx, name) \ + /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) + +# define XElf_Rel_vardef(name) Elf32_Rel *name +# define xelf_getrel(data, idx, name) \ + name = &((Elf32_Rel *) ((data)->d_buf))[idx] +# define xelf_getrel_ptr(data, idx, name) \ + name = &((Elf32_Rel *) ((data)->d_buf))[idx] +# define xelf_update_rel(data, idx, name) \ + /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) + +# define XElf_Rela_vardef(name) Elf32_Rela *name +# define xelf_getrela(data, idx, name) \ + name = &((Elf32_Rela *) ((data)->d_buf))[idx] +# define xelf_getrela_ptr(data, idx, name) \ + name = &((Elf32_Rela *) ((data)->d_buf))[idx] +# define xelf_update_rela(data, idx, name) \ + /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) + +# define XElf_Verdef_vardef(name) Elf32_Verdef *name +# define xelf_getverdef(data, offset, name) \ + name = ((Elf32_Verdef *) ((char *) ((data)->d_buf) + (offset))) + +# define XElf_Verdaux_vardef(name) Elf32_Verdaux *name +# define xelf_getverdaux(data, offset, name) \ + name = ((Elf32_Verdaux *) ((char *) ((data)->d_buf) + (offset))) + +# define XELF_ST_TYPE(info) ELF32_ST_TYPE (info) +# define XELF_ST_BIND(info) ELF32_ST_BIND (info) +# define XELF_ST_INFO(bind, type) ELF32_ST_INFO (bind, type) +# define XELF_ST_VISIBILITY(info) ELF32_ST_VISIBILITY (info) + +# define XELF_R_SYM(info) ELF32_R_SYM (info) +# define XELF_R_TYPE(info) ELF32_R_TYPE (info) +# define XELF_R_INFO(sym, type) ELF32_R_INFO (sym, type) + +# define xelf_fsize(elf, type, cnt) \ + (__builtin_constant_p (type) \ + ? ({ size_t fsize; \ + switch (type) \ + { \ + case ELF_T_BYTE: fsize = 1; break; \ + case ELF_T_ADDR: fsize = sizeof (Elf32_Addr); break; \ + case ELF_T_DYN: fsize = sizeof (Elf32_Dyn); break; \ + case ELF_T_EHDR: fsize = sizeof (Elf32_Ehdr); break; \ + case ELF_T_HALF: fsize = sizeof (Elf32_Half); break; \ + case ELF_T_OFF: fsize = sizeof (Elf32_Off); break; \ + case ELF_T_PHDR: fsize = sizeof (Elf32_Phdr); break; \ + case ELF_T_RELA: fsize = sizeof (Elf32_Rela); break; \ + case ELF_T_REL: fsize = sizeof (Elf32_Rel); break; \ + case ELF_T_SHDR: fsize = sizeof (Elf32_Shdr); break; \ + case ELF_T_SWORD: fsize = sizeof (Elf32_Sword); break; \ + case ELF_T_SYM: fsize = sizeof (Elf32_Sym); break; \ + case ELF_T_WORD: fsize = sizeof (Elf32_Word); break; \ + case ELF_T_XWORD: fsize = sizeof (Elf32_Xword); break; \ + case ELF_T_SXWORD: fsize = sizeof (Elf32_Sxword); break; \ + case ELF_T_VDEF: fsize = sizeof (Elf32_Verdef); break; \ + case ELF_T_VDAUX: fsize = sizeof (Elf32_Verdaux); break; \ + case ELF_T_VNEED: fsize = sizeof (Elf32_Verneed); break; \ + case ELF_T_VNAUX: fsize = sizeof (Elf32_Vernaux); break; \ + case ELF_T_NHDR: fsize = sizeof (Elf32_Nhdr); break; \ + case ELF_T_SYMINFO: fsize = sizeof (Elf32_Syminfo); break; \ + case ELF_T_MOVE: fsize = sizeof (Elf32_Move); break; \ + default: fsize = 0; break; \ + } \ + fsize * (cnt); }) \ + : gelf_fsize (elf, type, cnt, EV_CURRENT)) +#elif NATIVE_ELF == 64 +/* 64-bit only. */ +# define XElf_Ehdr Elf64_Ehdr +# define XElf_Shdr Elf64_Shdr +# define XElf_Addr Elf64_Addr +# define XElf_Half Elf64_Half +# define XElf_Off Elf64_Off +# define XElf_Word Elf64_Word +# define XElf_Xword Elf64_Xword +# define XElf_Sxword Elf64_Sxword +# define XElf_Versym Elf64_Versym +# define XElf_Sym Elf64_Sym +# define XElf_Rel Elf64_Rel +# define XElf_Rela Elf64_Rela + +# define XElf_Ehdr_vardef(name) Elf64_Ehdr *name +# define xelf_getehdr(elf, name) name = elf64_getehdr (elf) +# define xelf_getehdr_copy(elf, name, copy) \ + (copy) = *(name = elf64_getehdr (elf)) +# define xelf_newehdr(elf, klass) elf64_newehdr (elf) +# define xelf_update_ehdr(elf, ehdr) \ + /* nothing */ ((void) (elf), (void) (ehdr), 1) + +# define xelf_getclass(elf) ELFCLASS32 + +# define XElf_Phdr_vardef(name) Elf64_Phdr *name +# define xelf_newphdr(elf, n) elf64_newphdr (elf, n) +# define xelf_getphdr(elf, idx, name) name = elf64_getphdr (elf) + idx +# define xelf_getphdr_ptr(elf, idx, name) name = elf64_getphdr (elf) + idx +# define xelf_update_phdr(elf, idx, phdr) \ + /* nothing */ ((void) (elf), (void) (idx), (void) (phdr), 1) + +# define XElf_Shdr_vardef(name) Elf64_Shdr *name +# define xelf_getshdr(scn, name) name = elf64_getshdr (scn) +# define xelf_getshdr_copy(scn, name, copy) \ + (copy) = *(name = elf64_getshdr (scn)) +# define xelf_update_shdr(scn, shdr) \ + /* nothing */ ((void) (scn), (void) (shdr), 1) + +# define XElf_Sym_vardef(name) Elf64_Sym *name +# define xelf_getsym(data, idx, name) \ + name = &((Elf64_Sym *) (data)->d_buf)[idx] +# define xelf_getsym_ptr(data, idx, name) \ + name = &((Elf64_Sym *) (data)->d_buf)[idx] +# define xelf_getsymshndx(data, ndxdata, idx, name1, name2) \ + (name1 = &((Elf64_Sym *) ((data)->d_buf))[idx]); \ + name2 = (unlikely ((ndxdata) != NULL) \ + ? ((Elf32_Word *) ((ndxdata)->d_buf))[idx] : 0) +# define xelf_update_sym(data, idx, sym) \ + /* nothing */ ((void) (data), (void) (idx), (void) (sym), 1) +# define xelf_update_symshndx(data, ndxdata, idx, name1, name2, datachanged) \ + if (datachanged) \ + ((Elf64_Sym *) ((data)->d_buf))[idx] = *name1; \ + if (ndxdata != NULL) \ + (((Elf32_Word *) ((ndxdata)->d_buf))[idx] = name2) + +# define XElf_Versym_vardef(name) Elf64_Versym name +# define xelf_getversym_copy(data, idx, name) \ + (name = ((Elf64_Versym *) ((data)->d_buf))[idx], (&name)) + +# define XElf_Dyn_vardef(name) Elf64_Dyn *name +# define xelf_getdyn(data, idx, name) \ + name = &((Elf64_Dyn *) ((data)->d_buf))[idx] +# define xelf_getdyn_ptr(data, idx, name) \ + name = &((Elf64_Dyn *) ((data)->d_buf))[idx] +# define xelf_update_dyn(data, idx, name) \ + /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) + +# define XElf_Rel_vardef(name) Elf64_Rel *name +# define xelf_getrel(data, idx, name) \ + name = &((Elf64_Rel *) ((data)->d_buf))[idx] +# define xelf_getrel_ptr(data, idx, name) \ + name = &((Elf64_Rel *) ((data)->d_buf))[idx] +# define xelf_update_rel(data, idx, name) \ + /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) + +# define XElf_Rela_vardef(name) Elf64_Rela *name +# define xelf_getrela(data, idx, name) \ + name = &((Elf64_Rela *) ((data)->d_buf))[idx] +# define xelf_getrela_ptr(data, idx, name) \ + name = &((Elf64_Rela *) ((data)->d_buf))[idx] +# define xelf_update_rela(data, idx, name) \ + /* nothing */ ((void) (data), (void) (idx), (void) (name), 1) + +# define XElf_Verdef_vardef(name) Elf64_Verdef *name +# define xelf_getverdef(data, offset, name) \ + name = ((Elf64_Verdef *) ((char *) ((data)->d_buf) + (offset))) + +# define XElf_Verdaux_vardef(name) Elf64_Verdaux *name +# define xelf_getverdaux(data, offset, name) \ + name = ((Elf64_Verdaux *) ((char *) ((data)->d_buf) + (offset))) + +# define XELF_ST_TYPE(info) ELF64_ST_TYPE (info) +# define XELF_ST_BIND(info) ELF64_ST_BIND (info) +# define XELF_ST_INFO(bind, type) ELF64_ST_INFO (bind, type) +# define XELF_ST_VISIBILITY(info) ELF64_ST_VISIBILITY (info) + +# define XELF_R_SYM(info) ELF64_R_SYM (info) +# define XELF_R_TYPE(info) ELF64_R_TYPE (info) +# define XELF_R_INFO(sym, type) ELF64_R_INFO (sym, type) + +# define xelf_fsize(elf, type, cnt) \ + (__builtin_constant_p (type) \ + ? ({ size_t fsize; \ + switch (type) \ + { \ + case ELF_T_BYTE: fsize = 1; break; \ + case ELF_T_ADDR: fsize = sizeof (Elf64_Addr); break; \ + case ELF_T_DYN: fsize = sizeof (Elf64_Dyn); break; \ + case ELF_T_EHDR: fsize = sizeof (Elf64_Ehdr); break; \ + case ELF_T_HALF: fsize = sizeof (Elf64_Half); break; \ + case ELF_T_OFF: fsize = sizeof (Elf64_Off); break; \ + case ELF_T_PHDR: fsize = sizeof (Elf64_Phdr); break; \ + case ELF_T_RELA: fsize = sizeof (Elf64_Rela); break; \ + case ELF_T_REL: fsize = sizeof (Elf64_Rel); break; \ + case ELF_T_SHDR: fsize = sizeof (Elf64_Shdr); break; \ + case ELF_T_SWORD: fsize = sizeof (Elf64_Sword); break; \ + case ELF_T_SYM: fsize = sizeof (Elf64_Sym); break; \ + case ELF_T_WORD: fsize = sizeof (Elf64_Word); break; \ + case ELF_T_XWORD: fsize = sizeof (Elf64_Xword); break; \ + case ELF_T_SXWORD: fsize = sizeof (Elf64_Sxword); break; \ + case ELF_T_VDEF: fsize = sizeof (Elf64_Verdef); break; \ + case ELF_T_VDAUX: fsize = sizeof (Elf64_Verdaux); break; \ + case ELF_T_VNEED: fsize = sizeof (Elf64_Verneed); break; \ + case ELF_T_VNAUX: fsize = sizeof (Elf64_Vernaux); break; \ + case ELF_T_NHDR: fsize = sizeof (Elf64_Nhdr); break; \ + case ELF_T_SYMINFO: fsize = sizeof (Elf64_Syminfo); break; \ + case ELF_T_MOVE: fsize = sizeof (Elf64_Move); break; \ + default: fsize = 0; break; \ + } \ + fsize * (cnt); }) \ + : gelf_fsize (elf, type, cnt, EV_CURRENT)) +#else +# include + +/* Generic linker. */ +# define XElf_Ehdr GElf_Ehdr +# define XElf_Shdr GElf_Shdr +# define XElf_Addr GElf_Addr +# define XElf_Half GElf_Half +# define XElf_Off GElf_Off +# define XElf_Word GElf_Word +# define XElf_Xword GElf_Xword +# define XElf_Sxword GElf_Sxword +# define XElf_Versym GElf_Versym +# define XElf_Sym GElf_Sym +# define XElf_Rel GElf_Rel +# define XElf_Rela GElf_Rela + +# define XElf_Ehdr_vardef(name) GElf_Ehdr name##_mem; GElf_Ehdr *name +# define xelf_getehdr(elf, name) name = gelf_getehdr (elf, &name##_mem) +# define xelf_getehdr_copy(elf, name, copy) \ + name = gelf_getehdr (elf, &(copy)) +# define xelf_newehdr(elf, klass) gelf_newehdr (elf, klass) +# define xelf_update_ehdr(elf, ehdr) gelf_update_ehdr (elf, ehdr) + +# define xelf_getclass(elf) gelf_getclass (elf) + +# define XElf_Phdr_vardef(name) GElf_Phdr name##_mem; GElf_Phdr *name +# define xelf_newphdr(elf, n) gelf_newphdr (elf, n) +# define xelf_getphdr(elf, idx, name) \ + name = gelf_getphdr (elf, idx, &name##_mem) +# define xelf_getphdr_ptr(elf, idx, name) \ + name = &name##_mem +# define xelf_update_phdr(elf, idx, phdr) \ + gelf_update_phdr (elf, idx, phdr) + +# define XElf_Shdr_vardef(name) GElf_Shdr name##_mem; GElf_Shdr *name +# define xelf_getshdr(scn, name) name = gelf_getshdr (scn, &name##_mem) +# define xelf_getshdr_copy(scn, name, copy) \ + name = gelf_getshdr (scn, &(copy)) +# define xelf_update_shdr(scn, shdr) gelf_update_shdr (scn, shdr) + +# define XElf_Sym_vardef(name) GElf_Sym name##_mem; GElf_Sym *name +# define xelf_getsym(data, idx, name) \ + name = gelf_getsym (data, idx, &name##_mem) +# define xelf_getsym_ptr(data, idx, name) \ + name = &name##_mem +# define xelf_getsymshndx(data, ndxdata, idx, name1, name2) \ + name1 = gelf_getsymshndx (data, ndxdata, idx, &name1##_mem, &(name2)) +# define xelf_update_sym(data, idx, sym) gelf_update_sym (data, idx, sym) +# define xelf_update_symshndx(data, ndxdata, idx, name1, name2, datachanged) \ + gelf_update_symshndx (data, ndxdata, idx, name1, name2) + +# define XElf_Versym_vardef(name) GElf_Versym name +# define xelf_getversym_copy(data, idx, name) \ + gelf_getversym (data, idx, &name) + +# define XElf_Dyn_vardef(name) GElf_Dyn name##_mem; GElf_Dyn *name +# define xelf_getdyn(data, idx, name) \ + name = gelf_getdyn (data, idx, &name##_mem) +# define xelf_getdyn_ptr(data, idx, name) \ + name = &name##_mem +# define xelf_update_dyn(data, idx, name) \ + gelf_update_dyn (data, idx, name) + +# define XElf_Rel_vardef(name) GElf_Rel name##_mem; GElf_Rel *name +# define xelf_getrel(data, idx, name) \ + name = gelf_getrel (data, idx, &name##_mem) +# define xelf_getrel_ptr(data, idx, name) \ + name = &name##_mem +# define xelf_update_rel(data, idx, name) \ + gelf_update_rel (data, idx, name) + +# define XElf_Rela_vardef(name) GElf_Rela name##_mem; GElf_Rela *name +# define xelf_getrela(data, idx, name) \ + name = gelf_getrela (data, idx, &name##_mem) +# define xelf_getrela_ptr(data, idx, name) \ + name = &name##_mem +# define xelf_update_rela(data, idx, name) \ + gelf_update_rela (data, idx, name) + +# define XElf_Verdef_vardef(name) GElf_Verdef name##_mem; GElf_Verdef *name +# define xelf_getverdef(data, offset, name) \ + name = gelf_getverdef (data, offset, &name##_mem) + +# define XElf_Verdaux_vardef(name) GElf_Verdaux name##_mem; GElf_Verdaux *name +# define xelf_getverdaux(data, offset, name) \ + name = gelf_getverdaux (data, offset, &name##_mem) + +# define XELF_ST_TYPE(info) GELF_ST_TYPE (info) +# define XELF_ST_BIND(info) GELF_ST_BIND (info) +# define XELF_ST_INFO(bind, type) GELF_ST_INFO (bind, type) +# define XELF_ST_VISIBILITY(info) GELF_ST_VISIBILITY (info) + +# define XELF_R_SYM(info) GELF_R_SYM (info) +# define XELF_R_TYPE(info) GELF_R_TYPE (info) +# define XELF_R_INFO(sym, type) GELF_R_INFO (sym, type) + +# define xelf_fsize(elf, type, cnt) \ + gelf_fsize (elf, type, cnt, EV_CURRENT) +#endif diff --git a/src/ylwrap b/src/ylwrap new file mode 100644 index 0000000..e8abf82 --- /dev/null +++ b/src/ylwrap @@ -0,0 +1,154 @@ +#! /bin/sh +# ylwrap - wrapper for lex/yacc invocations. +# Copyright 1996, 1997, 1998, 1999, 2001 Free Software Foundation, Inc. +# Written by Tom Tromey . +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Usage: +# ylwrap INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]... +# * INPUT is the input file +# * OUTPUT is file PROG generates +# * DESIRED is file we actually want +# * PROGRAM is program to run +# * ARGS are passed to PROG +# Any number of OUTPUT,DESIRED pairs may be used. + +# The input. +input="$1" +shift +case "$input" in + [\\/]* | ?:[\\/]*) + # Absolute path; do nothing. + ;; + *) + # Relative path. Make it absolute. + input="`pwd`/$input" + ;; +esac + +pairlist= +while test "$#" -ne 0; do + if test "$1" = "--"; then + shift + break + fi + pairlist="$pairlist $1" + shift +done + +# The program to run. +prog="$1" +shift +# Make any relative path in $prog absolute. +case "$prog" in + [\\/]* | ?:[\\/]*) ;; + *[\\/]*) prog="`pwd`/$prog" ;; +esac + +# FIXME: add hostname here for parallel makes that run commands on +# other machines. But that might take us over the 14-char limit. +dirname=ylwrap$$ +trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15 +mkdir $dirname || exit 1 + +cd $dirname + +$prog ${1+"$@"} "$input" +status=$? + +if test $status -eq 0; then + set X $pairlist + shift + first=yes + # Since DOS filename conventions don't allow two dots, + # the DOS version of Bison writes out y_tab.c instead of y.tab.c + # and y_tab.h instead of y.tab.h. Test to see if this is the case. + y_tab_nodot="no" + if test -f y_tab.c || test -f y_tab.h; then + y_tab_nodot="yes" + fi + + # The directory holding the input. + input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'` + # Quote $INPUT_DIR so we can use it in a regexp. + # FIXME: really we should care about more than `.' and `\'. + input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'` + + while test "$#" -ne 0; do + from="$1" + # Handle y_tab.c and y_tab.h output by DOS + if test $y_tab_nodot = "yes"; then + if test $from = "y.tab.c"; then + from="y_tab.c" + else + if test $from = "y.tab.h"; then + from="y_tab.h" + fi + fi + fi + if test -f "$from"; then + # If $2 is an absolute path name, then just use that, + # otherwise prepend `../'. + case "$2" in + [\\/]* | ?:[\\/]*) target="$2";; + *) target="../$2";; + esac + + # Edit out `#line' or `#' directives. + # + # We don't want the resulting debug information to point at + # an absolute srcdir; it is better for it to just mention the + # .y file with no path. + # + # We want to use the real output file name, not yy.lex.c for + # instance. + # + # We want the include guards to be adjusted too. + FROM=`echo "$from" | sed \ + -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\ + -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'` + TARGET=`echo "$2" | sed \ + -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\ + -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'` + sed "/^#/{s,$input_rx,,;s,$from,$2,;s,$FORM,$TO,;}" "$from" >"$target" || + status=$? + else + # A missing file is only an error for the first file. This + # is a blatant hack to let us support using "yacc -d". If -d + # is not specified, we don't want an error when the header + # file is "missing". + if test $first = yes; then + status=1 + fi + fi + shift + shift + first=no + done +else + status=$? +fi + +# Remove the directory. +cd .. +rm -rf $dirname + +exit $status diff --git a/tests/.cvsignore b/tests/.cvsignore new file mode 100644 index 0000000..70845e0 --- /dev/null +++ b/tests/.cvsignore @@ -0,0 +1 @@ +Makefile.in diff --git a/tests/ChangeLog b/tests/ChangeLog new file mode 100644 index 0000000..024c7c8 --- /dev/null +++ b/tests/ChangeLog @@ -0,0 +1,126 @@ +2005-07-21 Ulrich Drepper + + * testfile18.bz2: New file. + * run-elflint-test.sh: New file. + * Makefile.am (TESTS): Add run-elflint-test.sh. + (EXTRA_DIST): Add run-elflint-test.sh and testfile18.bz2. + +2005-05-24 Ulrich Drepper + + * get-files.c (main): Use correct format specifier. + +2005-05-21 Ulrich Drepper + + * Makefile.am: Add -Wextra to CFLAGS. + * get-files.c: Remove warning this produced. + * get-pubnames.c: Likewise. + * newfile.c: Likewise. + * newscn.c: Likewise. + * scnnames.c: Likewise. + * showptable.c: Likewise. + * test-nlist.c: Likewise. + * update1.c: Likewise. + * update2.c: Likewise. + * update3.c: Likewise. + * update4.c: Likewise. + +2005-05-08 Ulrich Drepper + + * run-line2addr.sh: Remove testfile14 at the end. + + * run-strip-test.sh: Remove deubinfo test input file as well. + + * Makefile.am (EXTRA_DIST): Newly added files incorrectly used + .bz, not .bz2. + +2005-05-03 Roland McGrath + + * run-strip-test.sh: Use variables for test file names. + Optionally produce separate debug file and check it. + * run-strip-test2.sh: Use run-strip-test.sh via ., no duplication. + * run-strip-test3.sh: Likewise. + * run-strip-test4.sh: New file. + * run-strip-test5.sh: New file. + * run-strip-test6.sh: New file. + * testfile15.bz: New file. + * testfile15.debug.bz: New file. + * testfile16.bz: New file. + * testfile16.debug.bz: New file. + * testfile17.bz: New file. + * testfile17.debug.bz: New file. + * Makefile.am (TESTS, EXTRA_DIST): Add them. + +2005-04-25 Ulrich Drepper + + * run-line2addr.sh: Also use testfile14. Adjust for correct + return of multiple matches. + * testfile14.bz2: New file. + * Makefile.am (EXTRA_DIST): Add testfile14.bz2. + + * show-abbrev.c (main): Adjust for dwarf_getabbrev interface change. + +2005-04-04 Roland McGrath + + * line2addr.c (main): Initialize LINES and NLINES before calling + dwarf_getsrc_file, and free LINES afterwards. + + * allfcts.c (main): Use size_t for CUHL. + +2005-04-04 Ulrich Drepper + + * line2addr.c: New file. + * run-line2addr.sh: New file. + * Makefile.am: Add rules to build, run, and distribute new code. + +2005-04-02 Ulrich Drepper + + * allfcts.c: New file. + * run-allfcts.sh: New file. + * Makefile.am: Add rules to build, run, and distribute new code. + +2005-02-05 Ulrich Drepper + + * Makefile.am [MUDFLAP] (AM_CFLAGS): Add -fmudflap. Link all test + programs with -lmudflap. + +2004-09-25 Ulrich Drepper + + * asm-tst4.c (main): Add LD_LIBRARY_PATH to elflint invocation. + * asm-tst5.c (main): Likewise. + * asm-tst6.c (main): Likewise. + +2004-01-17 Ulrich Drepper + + * Makefile.am: Support building with mudflap. + +2004-01-12 Ulrich Drepper + + * get-aranges.c: Rewrite to use libdw. + * Makefile.am: Reenable get-aranges test. + +2004-01-11 Ulrich Drepper + + * get-lines.c: New file. + * get-files.c: Adjust for libdw. + * run-get-files.sh: Adjust expected result. + * run-get-lines.sh: Likewise. + * Makefile.am: Run get-lines test. Don't run get-aranges and + get-ciefde test for now. + + * show-abbrev.c: Adjust call to dwarf_getabbrevattr after interface + change. Print attribute offset information. + * run-show-abbrev.sh: Adjust expected output. + +2004-01-09 Ulrich Drepper + + * show-abbrev.c: Adjust call to dwarf_nextcu after interface change. + * show-die-info.c: Likewise. + * run-show-die-info.sh: Adjust expected output. + +2003-08-13 Ulrich Drepper + + * Makefile.in: Depend on libebl.a, not libebl.so. + +2003-08-11 Ulrich Drepper + + * Moved to CVS archive. diff --git a/tests/Makefile.am b/tests/Makefile.am new file mode 100644 index 0000000..674ed57 --- /dev/null +++ b/tests/Makefile.am @@ -0,0 +1,113 @@ +## Process this file with automake to create Makefile.in +## +## Copyright (C) 1996-2002, 2003, 2004, 2005 Red Hat, Inc. +## +## This program is Open Source software; you can redistribute it and/or +## modify it under the terms of the Open Software License version 1.0 as +## published by the Open Source Initiative. +## +## You should have received a copy of the Open Software License along +## with this program; if not, you may obtain a copy of the Open Software +## License version 1.0 from http://www.opensource.org/licenses/osl.php or +## by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +## 3001 King Ranch Road, Ukiah, CA 95482. +## +DEFS = -DHAVE_CONFIG_H -D_GNU_SOURCE +if MUDFLAP +AM_CFLAGS = -Wall -Werror -Wextra -std=gnu99 -fmudflap\ + $(if $($(*F)_no_Wformat),-Wno-format,-Wformat=2) +else +AM_CFLAGS = -Wall -Werror -Wextra -std=gnu99 \ + $(if $($(*F)_no_Wformat),-Wno-format,-Wformat=2) +AM_LDFLAGS = -Wl,-rpath,\$$ORIGIN/../libasm:\$$ORIGIN/../libdw:\$$ORIGIN/../libebl:\$$ORIGIN/../libelf +endif +INCLUDES = -I$(top_srcdir)/libasm -I$(top_srcdir)/libdw \ + -I$(top_srcdir)/libebl -I$(top_srcdir)/libelf \ + -I$(top_srcdir)/lib -I.. + +noinst_PROGRAMS = arextract arsymtest newfile saridx scnnames sectiondump \ + showptable update1 update2 update3 update4 test-nlist \ + show-die-info get-files get-lines get-pubnames \ + get-aranges allfcts line2addr \ + show-abbrev hash asm-tst1 asm-tst2 asm-tst3 \ + asm-tst4 asm-tst5 asm-tst6 asm-tst7 asm-tst8 asm-tst9 \ + msg_tst newscn ecp +# get-ciefde + +TESTS = run-arextract.sh run-arsymtest.sh newfile test-nlist \ + update1 update2 update3 update4 \ + run-show-die-info.sh run-get-files.sh run-get-lines.sh \ + run-get-pubnames.sh run-get-aranges.sh run-allfcts.sh \ + run-show-abbrev.sh run-line2addr.sh hash asm-tst1 asm-tst2 \ + asm-tst3 asm-tst4 asm-tst5 asm-tst6 asm-tst7 asm-tst8 asm-tst9 \ + msg_tst newscn run-strip-test.sh run-strip-test2.sh \ + run-strip-test3.sh run-strip-test4.sh run-strip-test5.sh \ + run-strip-test6.sh run-ecp-test.sh run-ecp-test2.sh \ + run-elflint-test.sh +# run-show-ciefde.sh + +EXTRA_DIST = run-arextract.sh run-arsymtest.sh \ + run-show-die-info.sh run-get-files.sh run-get-lines.sh \ + run-get-pubnames.sh run-get-aranges.sh \ + run-show-ciefde.sh run-show-abbrev.sh run-strip-test.sh \ + run-strip-test2.sh run-ecp-test.sh run-ecp-test2.sh \ + testfile.bz2 testfile2.bz2 testfile3.bz2 testfile4.bz2 \ + testfile5.bz2 testfile6.bz2 testfile7.bz2 testfile8.bz2 \ + testfile9.bz2 testfile10.bz2 testfile11.bz2 testfile12.bz2 \ + testfile13.bz2 run-strip-test3.sh run-allfcts.sh \ + run-line2addr.sh run-elflint-test.sh testfile14.bz2 \ + run-strip-test4.sh run-strip-test5.sh run-strip-test6.sh \ + testfile15.bz2 testfile15.debug.bz2 \ + testfile16.bz2 testfile16.debug.bz2 \ + testfile17.bz2 testfile17.debug.bz2 \ + testfile18.bz2 + +if MUDFLAP +libdw = ../libdw/libdw.a +libelf = ../libelf/libelf.a +libasm = ../libasm/libasm.a +libmudflap = -lmudflap +else +libdw = ../libdw/libdw.so +libelf = ../libelf/libelf.so +libasm = ../libasm/libasm.so +endif +libebl = ../libebl/libebl.a + +arextract_LDADD = $(libelf) $(libmudflap) +arsymtest_LDADD = $(libelf) $(libmudflap) +newfile_LDADD = $(libelf) $(libmudflap) +saridx_LDADD = $(libelf) $(libmudflap) +scnnames_LDADD = $(libelf) $(libmudflap) +sectiondump_LDADD = $(libelf) $(libmudflap) +showptable_LDADD = $(libelf) $(libmudflap) +hash_LDADD = $(libelf) $(libmudflap) +test_nlist_LDADD = $(libelf) $(libmudflap) +msg_tst_LDADD = $(libelf) $(libmudflap) +newscn_LDADD = $(libelf) $(libmudflap) +ecp_LDADD = $(libelf) $(libmudflap) +update1_LDADD = $(libelf) $(libmudflap) +update2_LDADD = $(libelf) $(libmudflap) +update3_LDADD = $(libebl) $(libelf) $(libmudflap) +update4_LDADD = $(libebl) $(libelf) $(libmudflap) +show_die_info_LDADD = $(libdw) $(libelf) $(libmudflap) +get_pubnames_LDADD = $(libdw) $(libelf) $(libmudflap) +show_abbrev_LDADD = $(libdw) $(libelf) $(libmudflap) +get_lines_LDADD = $(libdw) $(libelf) $(libmudflap) +get_files_LDADD = $(libdw) $(libelf) $(libmudflap) +get_aranges_LDADD = $(libdw) $(libelf) $(libmudflap) +allfcts_LDADD = $(libdw) $(libelf) $(libmudflap) +line2addr_no_Wformat = yes +line2addr_LDADD = $(libdw) $(libelf) $(libmudflap) +#show_ciefde_LDADD = ../libdwarf/libdwarf.so $(libelf) $(libmudflap) +asm_tst1_LDADD = $(libasm) $(libebl) $(libelf) $(libmudflap) +asm_tst2_LDADD = $(libasm) $(libebl) $(libelf) $(libmudflap) +asm_tst3_LDADD = $(libasm) $(libebl) $(libelf) $(libmudflap) +asm_tst4_LDADD = $(libasm) $(libebl) $(libelf) $(libmudflap) +asm_tst5_LDADD = $(libasm) $(libebl) $(libelf) $(libmudflap) +asm_tst6_LDADD = $(libasm) $(libebl) $(libelf) $(libmudflap) +asm_tst7_LDADD = $(libasm) $(libebl) $(libelf) $(libmudflap) +asm_tst8_LDADD = $(libasm) $(libebl) $(libelf) $(libmudflap) +asm_tst9_LDADD = $(libasm) $(libebl) $(libelf) $(libmudflap) + +CLEANFILES = xxx diff --git a/tests/allfcts.c b/tests/allfcts.c new file mode 100644 index 0000000..147ebc2 --- /dev/null +++ b/tests/allfcts.c @@ -0,0 +1,50 @@ +#include +#include +#include +#include + + +static int +cb (Dwarf_Func *func, void *arg __attribute__ ((unused))) +{ + const char *file = dwarf_func_file (func); + int line = -1; + dwarf_func_line (func, &line); + const char *fct = dwarf_func_name (func); + + printf ("%s:%d:%s\n", file, line, fct); + + return DWARF_CB_OK; +} + + +int +main (int argc, char *argv[]) +{ + for (int i = 1; i < argc; ++i) + { + int fd = open (argv[i], O_RDONLY); + + Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); + if (dbg != NULL) + { + Dwarf_Off off = 0; + size_t cuhl; + Dwarf_Off noff; + + while (dwarf_nextcu (dbg, off, &noff, &cuhl, NULL, NULL, NULL) == 0) + { + Dwarf_Die die_mem; + Dwarf_Die *die = dwarf_offdie (dbg, off + cuhl, &die_mem); + + (void) dwarf_getfuncs (die, cb, NULL, 0); + + off = noff; + } + + dwarf_end (dbg); + } + + close (fd); + } +} diff --git a/tests/arextract.c b/tests/arextract.c new file mode 100644 index 0000000..aa86fb4 --- /dev/null +++ b/tests/arextract.c @@ -0,0 +1,155 @@ +/* Copyright (C) 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include + + +int +main (int argc, char *argv[]) +{ + int fd; + Elf *elf; + Elf *subelf; + Elf_Cmd cmd; + off_t offset; + size_t todo; + + if (argc < 4) + exit (1); + + /* Open the archive. */ + fd = open (argv[1], O_RDONLY); + if (fd == -1) + { + printf ("Cannot open input file: %m"); + exit (1); + } + + /* Set the ELF version. */ + elf_version (EV_CURRENT); + + /* Create an ELF descriptor. */ + cmd = ELF_C_READ; + elf = elf_begin (fd, cmd, NULL); + if (elf == NULL) + { + printf ("Cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* If it is no archive punt. */ + if (elf_kind (elf) != ELF_K_AR) + { + printf ("`%s' is no archive\n", argv[1]); + exit (1); + } + + /* Get the elements of the archive one after the other. */ + while ((subelf = elf_begin (fd, cmd, elf)) != NULL) + { + /* The the header for this element. */ + Elf_Arhdr *arhdr = elf_getarhdr (subelf); + + if (arhdr == NULL) + { + printf ("cannot get arhdr: %s\n", elf_errmsg (-1)); + exit (1); + } + + if (strcmp (arhdr->ar_name, argv[2]) == 0) + { + int outfd; + + /* Get the offset of the file in the archive. */ + offset = elf_getbase (subelf); + if (offset == -1) + { + printf ("\ +Failed to get base address for the archive element: %s\n", + elf_errmsg (-1)); + exit (1); + } + + /* Open the output file. */ + outfd = open (argv[3], O_CREAT | O_TRUNC | O_RDWR, 0666); + if (outfd == -1) + { + printf ("cannot open output file: %m"); + exit (1); + } + + /* Now write out the data. */ + todo = arhdr->ar_size; + while (todo > 0) + { + char buf[1024]; + ssize_t n = pread (fd, buf, MIN (sizeof buf, todo), offset); + if (n == 0) + break; + + if (write (outfd, buf, n) != n) + { + puts ("Writing output failed"); + exit (1); + } + + offset += n; + todo -= n; + } + + /* Check whether all the date was read and written out. */ + if (todo != 0) + { + puts ("Reading archive member failed."); + exit (1); + } + + /* Close the descriptors. */ + if (elf_end (subelf) != 0 || elf_end (elf) != 0) + { + printf ("Freeing ELF descriptors failed: %s", elf_errmsg (-1)); + exit (1); + } + + close (outfd); + close (fd); + + /* All went well. */ + exit (0); + } + + /* Get next archive element. */ + cmd = elf_next (subelf); + if (elf_end (subelf) != 0) + { + printf ("error while freeing sub-ELF descriptor: %s\n", + elf_errmsg (-1)); + exit (1); + } + } + + /* When we reach this point we haven't found the given file in the + archive. */ + printf ("File `%s' not found in archive\n", argv[2]); + exit (1); +} diff --git a/tests/arsymtest.c b/tests/arsymtest.c new file mode 100644 index 0000000..e4c2cf0 --- /dev/null +++ b/tests/arsymtest.c @@ -0,0 +1,132 @@ +/* Copyright (C) 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +#include +#include +#include +#include +#include + + +int +main (int argc, char *argv[]) +{ + int fd; + FILE *fp; + Elf *elf; + Elf_Arsym *arsym; + size_t narsym; + + if (argc < 3) + exit (1); + + /* Open the archive. */ + fd = open (argv[1], O_RDONLY); + if (fd == -1) + { + printf ("Cannot open input file: %m"); + exit (1); + } + + /* Open the output file. */ + fp = fopen (argv[2], "w"); + if (fp == NULL) + { + printf ("Cannot open output file: %m"); + exit (1); + } + + /* Set the ELF version. */ + elf_version (EV_CURRENT); + + /* Create an ELF descriptor. */ + elf = elf_begin (fd, ELF_C_READ, NULL); + if (elf == NULL) + { + printf ("Cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* If it is no archive punt. */ + if (elf_kind (elf) != ELF_K_AR) + { + printf ("`%s' is no archive\n", argv[1]); + exit (1); + } + + /* Now get the index of the archive. */ + arsym = elf_getarsym (elf, &narsym); + if (arsym == NULL) + { + printf ("Cannot get archive index: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* If there is no element in the index do nothing. There always is + an empty entry at the end which is included in the count and + which we want to skip. */ + if (narsym-- > 1) + while (narsym-- > 0) + { + Elf *subelf; + Elf_Arhdr *arhdr; + + if (elf_rand (elf, arsym[narsym].as_off) != arsym[narsym].as_off) + { + printf ("random access for symbol `%s' fails: %s\n", + arsym[narsym].as_name, elf_errmsg (-1)); + exit (1); + } + + subelf = elf_begin (fd, ELF_C_READ, elf); + if (subelf == NULL) + { + printf ("Cannot create ELF descriptor for archive member: %s\n", + elf_errmsg (-1)); + exit (1); + } + + arhdr = elf_getarhdr (subelf); + if (arhdr == NULL) + { + printf ("Cannot get archive header for element `%s': %s\n", + arsym[narsym].as_name, elf_errmsg (-1)); + exit (1); + } + + /* Now print what we actually want. */ + fprintf (fp, "%s in %s\n", arsym[narsym].as_name, arhdr->ar_name); + + /* Free the ELF descriptor. */ + if (elf_end (subelf) != 0) + { + printf ("Error while freeing subELF descriptor: %s\n", + elf_errmsg (-1)); + exit (1); + } + } + + /* Free the ELF descriptor. */ + if (elf_end (elf) != 0) + { + printf ("Error while freeing ELF descriptor: %s\n", elf_errmsg (-1)); + exit (1); + } + + close (fd); + fclose (fp); + + return 0; +} diff --git a/tests/asm-tst1.c b/tests/asm-tst1.c new file mode 100644 index 0000000..b76930d --- /dev/null +++ b/tests/asm-tst1.c @@ -0,0 +1,239 @@ +/* Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include + + +static const char fname[] = "asm-tst1-out.o"; + + +static const GElf_Ehdr expected_ehdr = + { + .e_ident = { [EI_MAG0] = ELFMAG0, + [EI_MAG1] = ELFMAG1, + [EI_MAG2] = ELFMAG2, + [EI_MAG3] = ELFMAG3, + [EI_CLASS] = ELFCLASS32, + [EI_DATA] = ELFDATA2LSB, + [EI_VERSION] = EV_CURRENT }, + .e_type = ET_REL, + .e_machine = EM_386, + .e_version = EV_CURRENT, + .e_shoff = 88, + .e_ehsize = sizeof (Elf32_Ehdr), + .e_shentsize = sizeof (Elf32_Shdr), + .e_shnum = 4, + .e_shstrndx = 3 + }; + + +static const char *scnnames[4] = + { + [0] = "", + [1] = ".text", + [2] = ".data", + [3] = ".shstrtab" + }; + + +int +main (void) +{ + AsmCtx_t *ctx; + AsmScn_t *scn1; + AsmScn_t *scn2; + int fd; + Elf *elf; + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + int result = 0; + size_t cnt; + + elf_version (EV_CURRENT); + + ctx = asm_begin (fname, false, EM_386, ELFCLASS32, ELFDATA2LSB); + if (ctx == NULL) + { + printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); + return 1; + } + + /* Create two sections. */ + scn1 = asm_newscn (ctx, ".text", SHT_PROGBITS, SHF_ALLOC | SHF_EXECINSTR); + scn2 = asm_newscn (ctx, ".data", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE); + if (scn1 == NULL || scn2 == NULL) + { + printf ("cannot create section in output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Special alignment for the .text section. */ + if (asm_align (scn1, 32) != 0) + { + printf ("cannot align .text section: %s\n", asm_errmsg (-1)); + result = 1; + } + + /* Create the output file. */ + if (asm_end (ctx) != 0) + { + printf ("cannot create output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Check the file. */ + fd = open (fname, O_RDONLY); + if (fd == -1) + { + printf ("cannot open generated file: %m\n"); + result = 1; + goto out; + } + + elf = elf_begin (fd, ELF_C_READ, NULL); + if (elf == NULL) + { + printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + result = 1; + goto out_close; + } + if (elf_kind (elf) != ELF_K_ELF) + { + puts ("not a valid ELF file"); + result = 1; + goto out_close2; + } + + ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + { + printf ("cannot get ELF header: %s\n", elf_errmsg (-1)); + result = 1; + goto out_close2; + } + + if (memcmp (ehdr, &expected_ehdr, sizeof (GElf_Ehdr)) != 0) + { + puts ("ELF header does not match"); + result = 1; + goto out_close2; + } + + for (cnt = 1; cnt < 4; ++cnt) + { + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + scn = elf_getscn (elf, cnt); + if (scn == NULL) + { + printf ("cannot get section %Zd: %s\n", cnt, elf_errmsg (-1)); + result = 1; + continue; + } + + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + { + printf ("cannot get section header for section %Zd: %s\n", + cnt, elf_errmsg (-1)); + result = 1; + continue; + } + + if (strcmp (elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name), + scnnames[cnt]) != 0) + { + printf ("section %Zd's name differs: %s vs %s\n", cnt, + elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name), + scnnames[cnt]); + result = 1; + } + + if (shdr->sh_type != (cnt == 3 ? SHT_STRTAB : SHT_PROGBITS)) + { + printf ("section %Zd's type differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_flags != (SHF_ALLOC | SHF_EXECINSTR)) + || (cnt == 2 && shdr->sh_flags != (SHF_ALLOC | SHF_WRITE)) + || (cnt == 3 && shdr->sh_flags != 0)) + { + printf ("section %Zd's flags differs\n", cnt); + result = 1; + } + + if (shdr->sh_addr != 0) + { + printf ("section %Zd's address differs\n", cnt); + result = 1; + } + + if (shdr->sh_offset != ((sizeof (Elf32_Ehdr) + 31) & ~31)) + { + printf ("section %Zd's offset differs\n", cnt); + result = 1; + } + + if ((cnt != 3 && shdr->sh_size != 0) + || (cnt == 3 && shdr->sh_size != 23)) + { + printf ("section %Zd's size differs\n", cnt); + result = 1; + } + + if (shdr->sh_link != 0) + { + printf ("section %Zd's link differs\n", cnt); + result = 1; + } + + if (shdr->sh_info != 0) + { + printf ("section %Zd's info differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_addralign != 32) + || (cnt != 1 && shdr->sh_addralign != 1)) + { + printf ("section %Zd's addralign differs\n", cnt); + result = 1; + } + + if (shdr->sh_entsize != 0) + { + printf ("section %Zd's entsize differs\n", cnt); + result = 1; + } + } + + out_close2: + elf_end (elf); + out_close: + close (fd); + out: + /* We don't need the file anymore. */ + unlink (fname); + + return result; +} diff --git a/tests/asm-tst2.c b/tests/asm-tst2.c new file mode 100644 index 0000000..a309976 --- /dev/null +++ b/tests/asm-tst2.c @@ -0,0 +1,261 @@ +/* Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include + + +static const char fname[] = "asm-tst2-out.o"; + + +static const GElf_Ehdr expected_ehdr = + { + .e_ident = { [EI_MAG0] = ELFMAG0, + [EI_MAG1] = ELFMAG1, + [EI_MAG2] = ELFMAG2, + [EI_MAG3] = ELFMAG3, + [EI_CLASS] = ELFCLASS32, + [EI_DATA] = ELFDATA2LSB, + [EI_VERSION] = EV_CURRENT }, + .e_type = ET_REL, + .e_machine = EM_386, + .e_version = EV_CURRENT, + .e_shoff = 96, + .e_ehsize = sizeof (Elf32_Ehdr), + .e_shentsize = sizeof (Elf32_Shdr), + .e_shnum = 3, + .e_shstrndx = 2 + }; + + +static const char *scnnames[3] = + { + [0] = "", + [1] = ".data", + [2] = ".shstrtab" + }; + + +int +main (void) +{ + AsmCtx_t *ctx; + AsmScn_t *scn1; + AsmScn_t *scn2; + int result = 0; + int fd; + Elf *elf; + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + size_t cnt; + + elf_version (EV_CURRENT); + + ctx = asm_begin (fname, false, EM_386, ELFCLASS32, ELFDATA2LSB); + if (ctx == NULL) + { + printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); + return 1; + } + + /* Create two sections. */ + scn1 = asm_newscn (ctx, ".data", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE); + scn2 = asm_newsubscn (scn1, 1); + if (scn1 == NULL || scn2 == NULL) + { + printf ("cannot create section in output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Special alignment for the .text section. */ + if (asm_align (scn1, 16) != 0) + { + printf ("cannot align .text section: %s\n", asm_errmsg (-1)); + result = 1; + } + + /* Add a few strings. */ + if (asm_addstrz (scn1, "one", 4) != 0) + { + printf ("cannot insert first string: %s\n", asm_errmsg (-1)); + result = 1; + } + if (asm_addstrz (scn2, "three", 0) != 0) + { + printf ("cannot insert second string: %s\n", asm_errmsg (-1)); + result = 1; + } + if (asm_addstrz (scn1, "two", 4) != 0) + { + printf ("cannot insert third string: %s\n", asm_errmsg (-1)); + result = 1; + } + + /* Create the output file. */ + if (asm_end (ctx) != 0) + { + printf ("cannot create output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Check the file. */ + fd = open (fname, O_RDONLY); + if (fd == -1) + { + printf ("cannot open generated file: %m\n"); + result = 1; + goto out; + } + + elf = elf_begin (fd, ELF_C_READ, NULL); + if (elf == NULL) + { + printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + result = 1; + goto out_close; + } + if (elf_kind (elf) != ELF_K_ELF) + { + puts ("not a valid ELF file"); + result = 1; + goto out_close2; + } + + ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + { + printf ("cannot get ELF header: %s\n", elf_errmsg (-1)); + result = 1; + goto out_close2; + } + + if (memcmp (ehdr, &expected_ehdr, sizeof (GElf_Ehdr)) != 0) + { + puts ("ELF header does not match"); + result = 1; + goto out_close2; + } + + for (cnt = 1; cnt < 3; ++cnt) + { + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + scn = elf_getscn (elf, cnt); + if (scn == NULL) + { + printf ("cannot get section %Zd: %s\n", cnt, elf_errmsg (-1)); + result = 1; + continue; + } + + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + { + printf ("cannot get section header for section %Zd: %s\n", + cnt, elf_errmsg (-1)); + result = 1; + continue; + } + + if (strcmp (elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name), + scnnames[cnt]) != 0) + { + printf ("section %Zd's name differs: %s vs %s\n", cnt, + elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name), + scnnames[cnt]); + result = 1; + } + + if (shdr->sh_type != (cnt == 2 ? SHT_STRTAB : SHT_PROGBITS)) + { + printf ("section %Zd's type differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_flags != (SHF_ALLOC | SHF_WRITE)) + || (cnt == 2 && shdr->sh_flags != 0)) + { + printf ("section %Zd's flags differs\n", cnt); + result = 1; + } + + if (shdr->sh_addr != 0) + { + printf ("section %Zd's address differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_offset != ((sizeof (Elf32_Ehdr) + 15) & ~15)) + || (cnt == 2 + && shdr->sh_offset != (((sizeof (Elf32_Ehdr) + 15) & ~15) + + strlen ("one") + 1 + + strlen ("two") + 1 + + strlen ("three") + 1))) + { + printf ("section %Zd's offset differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_size != (strlen ("one") + 1 + + strlen ("two") + 1 + + strlen ("three") + 1)) + || (cnt == 2 && shdr->sh_size != 17)) + { + printf ("section %Zd's size differs\n", cnt); + result = 1; + } + + if (shdr->sh_link != 0) + { + printf ("section %Zd's link differs\n", cnt); + result = 1; + } + + if (shdr->sh_info != 0) + { + printf ("section %Zd's info differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_addralign != 16) + || (cnt != 1 && shdr->sh_addralign != 1)) + { + printf ("section %Zd's addralign differs\n", cnt); + result = 1; + } + + if (shdr->sh_entsize != 0) + { + printf ("section %Zd's entsize differs\n", cnt); + result = 1; + } + } + + out_close2: + elf_end (elf); + out_close: + close (fd); + out: + /* We don't need the file anymore. */ + unlink (fname); + + return result; +} diff --git a/tests/asm-tst3.c b/tests/asm-tst3.c new file mode 100644 index 0000000..fb79ea7 --- /dev/null +++ b/tests/asm-tst3.c @@ -0,0 +1,322 @@ +/* Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include + + +static const char fname[] = "asm-tst3-out.o"; + + +static const char *scnnames[5] = + { + [0] = "", + [1] = ".data", + [2] = ".strtab", + [3] = ".symtab", + [4] = ".shstrtab" + }; + + +static unsigned int scntypes[5] = + { + [0] = SHT_NULL, + [1] = SHT_PROGBITS, + [2] = SHT_STRTAB, + [3] = SHT_SYMTAB, + [4] = SHT_STRTAB + }; + + +int +main (void) +{ + AsmCtx_t *ctx; + AsmScn_t *scn1; + AsmScn_t *scn2; + int result = 0; + int fd; + Elf *elf; + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + size_t cnt; + + elf_version (EV_CURRENT); + + ctx = asm_begin (fname, false, EM_386, ELFCLASS32, ELFDATA2LSB); + if (ctx == NULL) + { + printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); + return 1; + } + + /* Create two sections. */ + scn1 = asm_newscn (ctx, ".data", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE); + scn2 = asm_newsubscn (scn1, 1); + if (scn1 == NULL || scn2 == NULL) + { + printf ("cannot create section in output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Special alignment for the .text section. */ + if (asm_align (scn1, 16) != 0) + { + printf ("cannot align .text section: %s\n", asm_errmsg (-1)); + result = 1; + } + + /* Add a few strings with names. */ + if (asm_newsym (scn1, "one", 4, STT_OBJECT, STB_GLOBAL) == NULL) + { + printf ("cannot create first name: %s\n", asm_errmsg (-1)); + result = 1; + } + if (asm_addstrz (scn1, "one", 4) != 0) + { + printf ("cannot insert first string: %s\n", asm_errmsg (-1)); + result = 1; + } + if (asm_newsym (scn2, "three", 6, STT_OBJECT, STB_WEAK) == NULL) + { + printf ("cannot create second name: %s\n", asm_errmsg (-1)); + result = 1; + } + if (asm_addstrz (scn2, "three", 0) != 0) + { + printf ("cannot insert second string: %s\n", asm_errmsg (-1)); + result = 1; + } + if (asm_newsym (scn1, "two", 4, STT_OBJECT, STB_LOCAL) == NULL) + { + printf ("cannot create third name: %s\n", asm_errmsg (-1)); + result = 1; + } + if (asm_addstrz (scn1, "two", 4) != 0) + { + printf ("cannot insert third string: %s\n", asm_errmsg (-1)); + result = 1; + } + + /* Create the output file. */ + if (asm_end (ctx) != 0) + { + printf ("cannot create output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Check the file. */ + fd = open (fname, O_RDONLY); + if (fd == -1) + { + printf ("cannot open generated file: %m\n"); + result = 1; + goto out; + } + + elf = elf_begin (fd, ELF_C_READ, NULL); + if (elf == NULL) + { + printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + result = 1; + goto out_close; + } + if (elf_kind (elf) != ELF_K_ELF) + { + puts ("not a valid ELF file"); + result = 1; + goto out_close2; + } + + ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + { + printf ("cannot get ELF header: %s\n", elf_errmsg (-1)); + result = 1; + goto out_close2; + } + + for (cnt = 1; cnt < 5; ++cnt) + { + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + scn = elf_getscn (elf, cnt); + if (scn == NULL) + { + printf ("cannot get section %Zd: %s\n", cnt, elf_errmsg (-1)); + result = 1; + continue; + } + + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + { + printf ("cannot get section header for section %Zd: %s\n", + cnt, elf_errmsg (-1)); + result = 1; + continue; + } + + if (strcmp (elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name), + scnnames[cnt]) != 0) + { + printf ("section %Zd's name differs: %s vs %s\n", cnt, + elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name), + scnnames[cnt]); + result = 1; + } + + if (shdr->sh_type != scntypes[cnt]) + { + printf ("section %Zd's type differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_flags != (SHF_ALLOC | SHF_WRITE)) + || (cnt != 1 && shdr->sh_flags != 0)) + { + printf ("section %Zd's flags differs\n", cnt); + result = 1; + } + + if (shdr->sh_addr != 0) + { + printf ("section %Zd's address differs\n", cnt); + result = 1; + } + + if (cnt == 3) + { + Elf_Data *data; + + if (shdr->sh_link != 2) + { + puts ("symbol table has incorrect link"); + result = 1; + } + + data = elf_getdata (scn, NULL); + if (data == NULL) + { + puts ("cannot get data of symbol table"); + result = 1; + } + else + { + size_t inner; + + for (inner = 1; + inner < (shdr->sh_size + / gelf_fsize (elf, ELF_T_SYM, 1, EV_CURRENT)); + ++inner) + { + GElf_Sym sym_mem; + GElf_Sym *sym; + + sym = gelf_getsym (data, inner, &sym_mem); + if (sym == NULL) + { + printf ("cannot get symbol %zu: %s\n", + inner, elf_errmsg (-1)); + result = 1; + } + else + { + /* The order of the third and fourth entry depends + on how the hash table is organized. */ + static const char *names[4] = + { + [0] = "", + [1] = "two", + [2] = "one", + [3] = "three" + }; + static const int info[4] = + { + [0] = GELF_ST_INFO (STB_LOCAL, STT_NOTYPE), + [1] = GELF_ST_INFO (STB_LOCAL, STT_OBJECT), + [2] = GELF_ST_INFO (STB_GLOBAL, STT_OBJECT), + [3] = GELF_ST_INFO (STB_WEAK, STT_OBJECT) + }; + static const unsigned value[4] = + { + [0] = 0, + [1] = 4, + [2] = 0, + [3] = 8 + }; + + if (strcmp (names[inner], + elf_strptr (elf, shdr->sh_link, + sym->st_name)) != 0) + { + printf ("symbol %zu has different name\n", inner); + result = 1; + } + + if (sym->st_value != value[inner]) + { + printf ("symbol %zu has wrong value\n", inner); + result = 1; + } + + if (sym->st_other != 0) + { + printf ("symbol %zu has wrong other info\n", inner); + result = 1; + } + + if (sym->st_shndx != 1) + { + printf ("symbol %zu has wrong section reference\n", + inner); + result = 1; + } + + if (sym->st_info != info[inner]) + { + printf ("symbol %zu has wrong type or binding\n", + inner); + result = 1; + } + + if ((inner != 3 && sym->st_size != 4) + || (inner == 3 && sym->st_size != 6)) + { + printf ("symbol %zu has wrong size\n", inner); + result = 1; + } + } + } + } + } + } + + out_close2: + elf_end (elf); + out_close: + close (fd); + out: + /* We don't need the file anymore. */ + unlink (fname); + + return result; +} diff --git a/tests/asm-tst4.c b/tests/asm-tst4.c new file mode 100644 index 0000000..29d6485 --- /dev/null +++ b/tests/asm-tst4.c @@ -0,0 +1,88 @@ +/* Copyright (C) 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include +#include +#include + + +static const char fname[] = "asm-tst4-out.o"; + + +int +main (void) +{ + AsmCtx_t *ctx; + int result = 0; + size_t cnt; + + elf_version (EV_CURRENT); + + ctx = asm_begin (fname, false, EM_386, ELFCLASS32, ELFDATA2LSB); + if (ctx == NULL) + { + printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); + return 1; + } + + /* Create 66000 sections. */ + for (cnt = 0; cnt < 66000; ++cnt) + { + char buf[20]; + AsmScn_t *scn; + + /* Create a unique name. */ + snprintf (buf, sizeof (buf), ".data.%Zu", cnt); + + /* Create the section. */ + scn = asm_newscn (ctx, buf, SHT_PROGBITS, SHF_ALLOC | SHF_WRITE); + if (scn == NULL) + { + printf ("cannot create section \"%s\" in output file: %s\n", + buf, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Add some content. */ + if (asm_adduint32 (scn, cnt) != 0) + { + printf ("cannot create content of section \"%s\": %s\n", + buf, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + } + + /* Create the output file. */ + if (asm_end (ctx) != 0) + { + printf ("cannot create output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + if (result == 0) + result = WEXITSTATUS (system ("\ +env LD_LIBRARY_PATH=../libelf ../src/elflint -q asm-tst4-out.o")); + + /* We don't need the file anymore. */ + unlink (fname); + + return result; +} diff --git a/tests/asm-tst5.c b/tests/asm-tst5.c new file mode 100644 index 0000000..4f761ae --- /dev/null +++ b/tests/asm-tst5.c @@ -0,0 +1,100 @@ +/* Copyright (C) 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "system.h" + + +static const char fname[] = "asm-tst5-out.o"; + + +int +main (void) +{ + AsmCtx_t *ctx; + int result = 0; + size_t cnt; + + elf_version (EV_CURRENT); + + ctx = asm_begin (fname, false, EM_386, ELFCLASS32, ELFDATA2LSB); + if (ctx == NULL) + { + printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); + return 1; + } + + /* Create 66000 sections. */ + for (cnt = 0; cnt < 66000; ++cnt) + { + char buf[20]; + AsmScn_t *scn; + + /* Create a unique name. */ + snprintf (buf, sizeof (buf), ".data.%Zu", cnt); + + /* Create the section. */ + scn = asm_newscn (ctx, buf, SHT_PROGBITS, SHF_ALLOC | SHF_WRITE); + if (scn == NULL) + { + printf ("cannot create section \"%s\" in output file: %s\n", + buf, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Add a name. */ + snprintf (buf, sizeof (buf), "%Zu", cnt); + if (asm_newsym (scn, buf, sizeof (uint32_t), STT_OBJECT, + STB_GLOBAL) == NULL) + { + printf ("cannot create symbol \"%s\": %s\n", buf, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Add some content. */ + if (asm_adduint32 (scn, cnt) != 0) + { + printf ("cannot create content of section \"%s\": %s\n", + buf, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + } + + /* Create the output file. */ + if (asm_end (ctx) != 0) + { + printf ("cannot create output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + if (result == 0) + result = WEXITSTATUS (system ("\ +env LD_LIBRARY_PATH=../libelf ../src/elflint -q asm-tst5-out.o")); + + /* We don't need the file anymore. */ + unlink (fname); + + return result; +} diff --git a/tests/asm-tst6.c b/tests/asm-tst6.c new file mode 100644 index 0000000..ece69bc --- /dev/null +++ b/tests/asm-tst6.c @@ -0,0 +1,134 @@ +/* Copyright (C) 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include + +#include + + +static const char fname[] = "asm-tst6-out.o"; + + +int +main (void) +{ + AsmCtx_t *ctx; + int result = 0; + size_t cnt; + + elf_version (EV_CURRENT); + + ctx = asm_begin (fname, false, EM_386, ELFCLASS32, ELFDATA2LSB); + if (ctx == NULL) + { + printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); + return 1; + } + + for (cnt = 0; cnt < 22000; ++cnt) + { + char buf[512]; + AsmScnGrp_t *grp; + AsmScn_t *scn; + AsmSym_t *sym; + + snprintf (buf, sizeof (buf), ".grp%Zu", cnt); + grp = asm_newscngrp (ctx, buf, NULL, 0); + if (grp == NULL) + { + printf ("cannot section group %Zu: %s\n", cnt, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + scn = asm_newscn_ingrp (ctx, ".data", SHT_PROGBITS, + SHF_ALLOC | SHF_WRITE, grp); + if (scn == NULL) + { + printf ("cannot data section for group %Zu: %s\n", + cnt, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Add a name. */ + snprintf (buf, sizeof (buf), "%Zu", cnt); + sym = asm_newsym (scn, buf, sizeof (uint32_t), STT_OBJECT, + STB_GLOBAL); + if (sym == NULL) + { + printf ("cannot create symbol \"%s\": %s\n", buf, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Add some content. */ + if (asm_adduint32 (scn, cnt) != 0) + { + printf ("cannot create content of section \"%s\": %s\n", + buf, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Now we have a symbol, use it as the signature. */ + if (asm_scngrp_newsignature (grp, sym) != 0) + { + printf ("cannot set signature for section group %Zu: %s\n", + cnt, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Create a phony debug info section. */ + scn = asm_newscn_ingrp (ctx, ".stab", SHT_PROGBITS, 0, grp); + if (scn == NULL) + { + printf ("cannot stab section for group %Zu: %s\n", + cnt, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Add some content. */ + if (asm_adduint32 (scn, cnt) != 0) + { + printf ("cannot create content of section \"%s\": %s\n", + buf, asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + } + + /* Create the output file. */ + if (asm_end (ctx) != 0) + { + printf ("cannot create output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + if (result == 0) + result = WEXITSTATUS (system ("\ +env LD_LIBRARY_PATH=../libelf ../src/elflint -q asm-tst6-out.o")); + + /* We don't need the file anymore. */ + unlink (fname); + + return result; +} diff --git a/tests/asm-tst7.c b/tests/asm-tst7.c new file mode 100644 index 0000000..ebd4559 --- /dev/null +++ b/tests/asm-tst7.c @@ -0,0 +1,164 @@ +/* Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include + + +static const char fname[] = "asm-tst7-out.o"; + + +int +main (void) +{ + int result = 0; + size_t cnt; + AsmCtx_t *ctx; + Elf *elf; + int fd; + + elf_version (EV_CURRENT); + + ctx = asm_begin (fname, false, EM_386, ELFCLASS32, ELFDATA2LSB); + if (ctx == NULL) + { + printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); + return 1; + } + + if (asm_newcomsym (ctx, "commsym", 4, 16) == NULL) + { + printf ("cannot create common symbol: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Create the output file. */ + if (asm_end (ctx) != 0) + { + printf ("cannot create output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Check the file. */ + fd = open (fname, O_RDONLY); + if (fd == -1) + { + printf ("cannot open generated file: %m\n"); + result = 1; + goto out; + } + + elf = elf_begin (fd, ELF_C_READ, NULL); + if (elf == NULL) + { + printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + result = 1; + goto out_close; + } + if (elf_kind (elf) != ELF_K_ELF) + { + puts ("not a valid ELF file"); + result = 1; + goto out_close2; + } + + for (cnt = 1; 1; ++cnt) + { + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + scn = elf_getscn (elf, cnt); + if (scn == NULL) + { + printf ("cannot get section %Zd: %s\n", cnt, elf_errmsg (-1)); + result = 1; + continue; + } + + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + { + printf ("cannot get section header for section %Zd: %s\n", + cnt, elf_errmsg (-1)); + result = 1; + continue; + } + /* We are looking for the symbol table. */ + if (shdr->sh_type != SHT_SYMTAB) + continue; + + for (cnt = 1; cnt< (shdr->sh_size + / gelf_fsize (elf, ELF_T_SYM, 1, EV_CURRENT)); + ++cnt) + { + GElf_Sym sym_mem; + GElf_Sym *sym; + + if (cnt > 1) + { + puts ("too many symbol"); + result = 1; + break; + } + + sym = gelf_getsym (elf_getdata (scn, NULL), cnt, &sym_mem); + if (sym == NULL) + { + printf ("cannot get symbol %zu: %s\n", cnt, elf_errmsg (-1)); + result = 1; + } + else + { + if (sym->st_shndx != SHN_COMMON) + { + printf ("expected common symbol, got section %u\n", + (unsigned int) sym->st_shndx); + result = 1; + } + + if (sym->st_value != 16) + { + printf ("requested alignment 16, is %" PRIuMAX "\n", + (uintmax_t) sym->st_value); + result = 1; + } + + if (sym->st_size != 4) + { + printf ("requested size 4, is %" PRIuMAX "\n", + (uintmax_t) sym->st_value); + result = 1; + } + } + } + + break; + } + + out_close2: + elf_end (elf); + out_close: + close (fd); + out: + /* We don't need the file anymore. */ + unlink (fname); + + return result; +} diff --git a/tests/asm-tst8.c b/tests/asm-tst8.c new file mode 100644 index 0000000..6ce7c9c --- /dev/null +++ b/tests/asm-tst8.c @@ -0,0 +1,172 @@ +/* Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include + + +static const char fname[] = "asm-tst8-out.o"; + + +int +main (void) +{ + int result = 0; + size_t cnt; + AsmCtx_t *ctx; + Elf *elf; + int fd; + + elf_version (EV_CURRENT); + + ctx = asm_begin (fname, false, EM_386, ELFCLASS32, ELFDATA2LSB); + if (ctx == NULL) + { + printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); + return 1; + } + + if (asm_newabssym (ctx, "tst8-out.s", 4, 0xfeedbeef, STT_FILE, STB_LOCAL) + == NULL) + { + printf ("cannot create absolute symbol: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Create the output file. */ + if (asm_end (ctx) != 0) + { + printf ("cannot create output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Check the file. */ + fd = open (fname, O_RDONLY); + if (fd == -1) + { + printf ("cannot open generated file: %m\n"); + result = 1; + goto out; + } + + elf = elf_begin (fd, ELF_C_READ, NULL); + if (elf == NULL) + { + printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + result = 1; + goto out_close; + } + if (elf_kind (elf) != ELF_K_ELF) + { + puts ("not a valid ELF file"); + result = 1; + goto out_close2; + } + + for (cnt = 1; 1; ++cnt) + { + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + scn = elf_getscn (elf, cnt); + if (scn == NULL) + { + printf ("cannot get section %Zd: %s\n", cnt, elf_errmsg (-1)); + result = 1; + continue; + } + + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + { + printf ("cannot get section header for section %Zd: %s\n", + cnt, elf_errmsg (-1)); + result = 1; + continue; + } + /* We are looking for the symbol table. */ + if (shdr->sh_type != SHT_SYMTAB) + continue; + + for (cnt = 1; cnt< (shdr->sh_size + / gelf_fsize (elf, ELF_T_SYM, 1, EV_CURRENT)); + ++cnt) + { + GElf_Sym sym_mem; + GElf_Sym *sym; + + if (cnt > 1) + { + puts ("too many symbol"); + result = 1; + break; + } + + sym = gelf_getsym (elf_getdata (scn, NULL), cnt, &sym_mem); + if (sym == NULL) + { + printf ("cannot get symbol %zu: %s\n", cnt, elf_errmsg (-1)); + result = 1; + } + else + { + if (sym->st_shndx != SHN_ABS) + { + printf ("expected common symbol, got section %u\n", + (unsigned int) sym->st_shndx); + result = 1; + } + + if (sym->st_value != 0xfeedbeef) + { + printf ("requested value 0xfeedbeef, is %#" PRIxMAX "\n", + (uintmax_t) sym->st_value); + result = 1; + } + + if (sym->st_size != 4) + { + printf ("requested size 4, is %" PRIuMAX "\n", + (uintmax_t) sym->st_value); + result = 1; + } + + if (GELF_ST_TYPE (sym->st_info) != STT_FILE) + { + printf ("requested type FILE, is %u\n", + (unsigned int) GELF_ST_TYPE (sym->st_info)); + result = 1; + } + } + } + + break; + } + + out_close2: + elf_end (elf); + out_close: + close (fd); + out: + /* We don't need the file anymore. */ + unlink (fname); + + return result; +} diff --git a/tests/asm-tst9.c b/tests/asm-tst9.c new file mode 100644 index 0000000..28bb478 --- /dev/null +++ b/tests/asm-tst9.c @@ -0,0 +1,318 @@ +/* Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include +#include + + +static const char fname[] = "asm-tst9-out.o"; + + +static int32_t input[] = + { + 0, 1, 129, 510, 2000, 33000, 0x7ffffff, 0x7fffffff + }; +#define ninput (sizeof (input) / sizeof (input[0])) + + +static const GElf_Ehdr expected_ehdr = + { + .e_ident = { [EI_MAG0] = ELFMAG0, + [EI_MAG1] = ELFMAG1, + [EI_MAG2] = ELFMAG2, + [EI_MAG3] = ELFMAG3, + [EI_CLASS] = ELFCLASS32, + [EI_DATA] = ELFDATA2LSB, + [EI_VERSION] = EV_CURRENT }, + .e_type = ET_REL, + .e_machine = EM_386, + .e_version = EV_CURRENT, + .e_shoff = 180, + .e_ehsize = sizeof (Elf32_Ehdr), + .e_shentsize = sizeof (Elf32_Shdr), + .e_shnum = 3, + .e_shstrndx = 2 + }; + + +static const char *scnnames[3] = + { + [0] = "", + [1] = ".data", + [2] = ".shstrtab" + }; + + +static const char expecteddata[] = + { + 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0xff, 0xff, 0xff, 0xff, 0x0f, 0x7f, + 0x81, 0x01, 0x81, 0x01, 0xff, 0xfe, 0xff, 0xff, 0x0f, 0xff, 0x7e, 0xfe, + 0x03, 0xfe, 0x03, 0x82, 0xfc, 0xff, 0xff, 0x0f, 0x82, 0x7c, 0xd0, 0x0f, + 0xd0, 0x0f, 0xb0, 0xf0, 0xff, 0xff, 0x0f, 0xb0, 0x70, 0xe8, 0x81, 0x02, + 0xe8, 0x81, 0x02, 0x98, 0xfe, 0xfd, 0xff, 0x0f, 0x98, 0xfe, 0x7d, 0xff, + 0xff, 0xff, 0x3f, 0xff, 0xff, 0xff, 0x3f, 0x81, 0x80, 0x80, 0xc0, 0x0f, + 0x81, 0x80, 0x80, 0x40, 0xff, 0xff, 0xff, 0xff, 0x07, 0xff, 0xff, 0xff, + 0xff, 0x07, 0x81, 0x80, 0x80, 0x80, 0x08, 0x81, 0x80, 0x80, 0x80, 0x78 + }; + + +int +main (void) +{ + AsmCtx_t *ctx; + AsmScn_t *scn; + int result = 0; + int fd; + Elf *elf; + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + size_t cnt; + + elf_version (EV_CURRENT); + + ctx = asm_begin (fname, false, EM_386, ELFCLASS32, ELFDATA2LSB); + if (ctx == NULL) + { + printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); + return 1; + } + + /* Create two sections. */ + scn = asm_newscn (ctx, ".data", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE); + if (scn == NULL) + { + printf ("cannot create section in output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Special alignment for the .text section. */ + if (asm_align (scn, 16) != 0) + { + printf ("cannot align .text section: %s\n", asm_errmsg (-1)); + result = 1; + } + + /* Add a few ULEB128 and SLEB128 numbers. */ + for (cnt = 0; cnt < ninput; ++cnt) + { + if (asm_adduleb128 (scn, input[cnt]) != 0) + { + printf ("cannot insert uleb %" PRIu32 ": %s\n", + (uint32_t) input[cnt], asm_errmsg (-1)); + result = 1; + } + + if (asm_addsleb128 (scn, input[cnt]) != 0) + { + printf ("cannot insert sleb %" PRId32 ": %s\n", + input[cnt], asm_errmsg (-1)); + result = 1; + } + + if (asm_adduleb128 (scn, -input[cnt]) != 0) + { + printf ("cannot insert uleb %" PRIu32 ": %s\n", + (uint32_t) -input[cnt], asm_errmsg (-1)); + result = 1; + } + + if (asm_addsleb128 (scn, -input[cnt]) != 0) + { + printf ("cannot insert sleb %" PRId32 ": %s\n", + -input[cnt], asm_errmsg (-1)); + result = 1; + } + } + + /* Create the output file. */ + if (asm_end (ctx) != 0) + { + printf ("cannot create output file: %s\n", asm_errmsg (-1)); + asm_abort (ctx); + return 1; + } + + /* Check the file. */ + fd = open (fname, O_RDONLY); + if (fd == -1) + { + printf ("cannot open generated file: %m\n"); + result = 1; + goto out; + } + + elf = elf_begin (fd, ELF_C_READ, NULL); + if (elf == NULL) + { + printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + result = 1; + goto out_close; + } + if (elf_kind (elf) != ELF_K_ELF) + { + puts ("not a valid ELF file"); + result = 1; + goto out_close2; + } + + ehdr = gelf_getehdr (elf, &ehdr_mem); + if (ehdr == NULL) + { + printf ("cannot get ELF header: %s\n", elf_errmsg (-1)); + result = 1; + goto out_close2; + } + + if (memcmp (ehdr, &expected_ehdr, sizeof (GElf_Ehdr)) != 0) + { + puts ("ELF header does not match"); + result = 1; + goto out_close2; + } + + for (cnt = 1; cnt < 3; ++cnt) + { + Elf_Scn *scn; + GElf_Shdr shdr_mem; + GElf_Shdr *shdr; + + scn = elf_getscn (elf, cnt); + if (scn == NULL) + { + printf ("cannot get section %Zd: %s\n", cnt, elf_errmsg (-1)); + result = 1; + continue; + } + + shdr = gelf_getshdr (scn, &shdr_mem); + if (shdr == NULL) + { + printf ("cannot get section header for section %Zd: %s\n", + cnt, elf_errmsg (-1)); + result = 1; + continue; + } + + if (strcmp (elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name), + scnnames[cnt]) != 0) + { + printf ("section %Zd's name differs: %s vs %s\n", cnt, + elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name), + scnnames[cnt]); + result = 1; + } + + if (shdr->sh_type != (cnt == 2 ? SHT_STRTAB : SHT_PROGBITS)) + { + printf ("section %Zd's type differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_flags != (SHF_ALLOC | SHF_WRITE)) + || (cnt == 2 && shdr->sh_flags != 0)) + { + printf ("section %Zd's flags differs\n", cnt); + result = 1; + } + + if (shdr->sh_addr != 0) + { + printf ("section %Zd's address differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_offset != ((sizeof (Elf32_Ehdr) + 15) & ~15)) + || (cnt == 2 + && shdr->sh_offset != (((sizeof (Elf32_Ehdr) + 15) & ~15) + + sizeof (expecteddata)))) + { + printf ("section %Zd's offset differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_size != sizeof (expecteddata)) + || (cnt == 2 && shdr->sh_size != 17)) + { + printf ("section %Zd's size differs\n", cnt); + result = 1; + } + + if (shdr->sh_link != 0) + { + printf ("section %Zd's link differs\n", cnt); + result = 1; + } + + if (shdr->sh_info != 0) + { + printf ("section %Zd's info differs\n", cnt); + result = 1; + } + + if ((cnt == 1 && shdr->sh_addralign != 16) + || (cnt != 1 && shdr->sh_addralign != 1)) + { + printf ("section %Zd's addralign differs\n", cnt); + result = 1; + } + + if (shdr->sh_entsize != 0) + { + printf ("section %Zd's entsize differs\n", cnt); + result = 1; + } + + if (cnt == 1) + { + Elf_Data *data = elf_getdata (scn, NULL); + + if (data == NULL) + { + printf ("cannot get data of section %Zd\n", cnt); + result = 1; + } + else + { + if (data->d_size != sizeof (expecteddata)) + { + printf ("data block size of section %Zd wrong: got %Zd, " + "expected 96\n", cnt, data->d_size); + result = 1; + } + + if (memcmp (data->d_buf, expecteddata, sizeof (expecteddata)) + != 0) + { + printf ("data block content of section %Zd wrong\n", cnt); + result = 1; + } + } + } + } + + out_close2: + elf_end (elf); + out_close: + close (fd); + out: + /* We don't need the file anymore. */ + unlink (fname); + + return result; +} diff --git a/tests/ecp.c b/tests/ecp.c new file mode 100644 index 0000000..15bc71c --- /dev/null +++ b/tests/ecp.c @@ -0,0 +1,88 @@ +/* Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include + +int +main (int argc, char *argv[]) +{ + if (argc < 3) + error (EXIT_FAILURE, 0, "usage: %s FROMNAME TONAME", argv[0]); + + elf_version (EV_CURRENT); + + int infd = open (argv[1], O_RDONLY); + if (infd == -1) + error (EXIT_FAILURE, errno, "cannot open input file '%s'", argv[1]); + + Elf *inelf = elf_begin (infd, ELF_C_READ, NULL); + if (inelf == NULL) + error (EXIT_FAILURE, 0, "problems opening '%s' as ELF file: %s", + argv[1], elf_errmsg (-1)); + + int outfd = creat (argv[2], 0666); + if (outfd == -1) + error (EXIT_FAILURE, errno, "cannot open output file '%s'", argv[2]); + + Elf *outelf = elf_begin (outfd, ELF_C_WRITE, NULL); + if (outelf == NULL) + error (EXIT_FAILURE, 0, "problems opening '%s' as ELF file: %s", + argv[2], elf_errmsg (-1)); + + gelf_newehdr (outelf, gelf_getclass (inelf)); + + GElf_Ehdr ehdr_mem; + GElf_Ehdr *ehdr; + gelf_update_ehdr (outelf, (ehdr = gelf_getehdr (inelf, &ehdr_mem))); + + if (ehdr->e_phnum > 0) + { + int cnt; + + if (gelf_newphdr (outelf, ehdr->e_phnum) == 0) + error (EXIT_FAILURE, 0, "cannot create program header: %s", + elf_errmsg (-1)); + + for (cnt = 0; cnt < ehdr->e_phnum; ++cnt) + { + GElf_Phdr phdr_mem; + + gelf_update_phdr (outelf, cnt, gelf_getphdr (inelf, cnt, &phdr_mem)); + } + } + + Elf_Scn *scn = NULL; + while ((scn = elf_nextscn (inelf, scn)) != NULL) + { + Elf_Scn *newscn = elf_newscn (outelf); + + GElf_Shdr shdr_mem; + gelf_update_shdr (newscn, gelf_getshdr (scn, &shdr_mem)); + + *elf_newdata (newscn) = *elf_getdata (scn, NULL); + } + + elf_flagelf (outelf, ELF_C_SET, ELF_F_LAYOUT); + + if (elf_update (outelf, ELF_C_WRITE) == -1) + error (EXIT_FAILURE, 0, "elf_update failed: %s", elf_errmsg (-1)); + + close (outfd); + + return 0; +} diff --git a/tests/get-aranges.c b/tests/get-aranges.c new file mode 100644 index 0000000..1be76b2 --- /dev/null +++ b/tests/get-aranges.c @@ -0,0 +1,134 @@ +/* Copyright (C) 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include + + +static const Dwarf_Addr testaddr[] = +{ + 0x804842b, 0x804842c, 0x804843c, 0x8048459, 0x804845a, + 0x804845b, 0x804845c, 0x8048460, 0x8048465, 0x8048466, + 0x8048467, 0x8048468, 0x8048470, 0x8048471, 0x8048472 +}; +#define ntestaddr (sizeof (testaddr) / sizeof (testaddr[0])) + + +int +main (int argc, char *argv[]) +{ + int result = 0; + int cnt; + + for (cnt = 1; cnt < argc; ++cnt) + { + int fd = open (argv[cnt], O_RDONLY); + + Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); + if (dbg == NULL) + { + printf ("%s not usable\n", argv[cnt]); + result = 1; + close (fd); + continue; + } + + Dwarf_Aranges *aranges; + size_t naranges; + if (dwarf_getaranges (dbg, &aranges, &naranges) != 0) + printf ("%s: cannot get aranges\n", argv[cnt]); + else + { + for (size_t i = 0; i < ntestaddr; ++i) + { + Dwarf_Arange *found; + + found = dwarf_getarange_addr (aranges, testaddr[i]); + if (found != NULL) + { + Dwarf_Off cu_offset; + + if (dwarf_getarangeinfo (found, NULL, NULL, &cu_offset) != 0) + { + puts ("failed to get CU die offset"); + result = 1; + } + else + { + const char *cuname; + Dwarf_Die cu_die; + + if (dwarf_offdie (dbg, cu_offset, &cu_die) == NULL + || (cuname = dwarf_diename (&cu_die)) == NULL) + { + puts ("failed to get CU die"); + result = 1; + } + else + printf ("CU name: \"%s\"\n", cuname); + } + } + else + printf ("%#llx: not in range\n", + (unsigned long long int) testaddr[i]); + } + + for (size_t i = 0; i < naranges; ++i) + { + Dwarf_Arange *arange = dwarf_onearange (aranges, i); + if (arange == NULL) + { + printf ("cannot get arange %zu: %s\n", i, dwarf_errmsg (-1)); + break; + } + + Dwarf_Addr start; + Dwarf_Word length; + Dwarf_Off cu_offset; + + if (dwarf_getarangeinfo (arange, &start, &length, &cu_offset) + != 0) + { + printf ("cannot get info from aranges[%zu]\n", i); + result = 1; + } + else + { + printf (" [%2zu] start: %#llx, length: %llu, cu: %llu\n", + i, (unsigned long long int) start, + (unsigned long long int) length, + (unsigned long long int) cu_offset); + + const char *cuname; + Dwarf_Die cu_die; + if (dwarf_offdie (dbg, cu_offset, &cu_die) == NULL + || (cuname = dwarf_diename (&cu_die)) == NULL) + { + puts ("failed to get CU die"); + result = 1; + } + else + printf ("CU name: \"%s\"\n", cuname); + } + } + } + + dwarf_end (dbg); + close (fd); + } + + return result; +} diff --git a/tests/get-files.c b/tests/get-files.c new file mode 100644 index 0000000..1294342 --- /dev/null +++ b/tests/get-files.c @@ -0,0 +1,83 @@ +/* Copyright (C) 2002, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include + + +int +main (int argc, char *argv[]) +{ + int result = 0; + int cnt; + + for (cnt = 1; cnt < argc; ++cnt) + { + int fd = open (argv[cnt], O_RDONLY); + + Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); + if (dbg == NULL) + { + printf ("%s not usable\n", argv[cnt]); + result = 1; + if (fd != -1) + close (fd); + continue; + } + + Dwarf_Off o = 0; + Dwarf_Off ncu; + Dwarf_Off ao; + size_t cuhl; + uint8_t asz; + uint8_t osz; + while (dwarf_nextcu (dbg, o, &ncu, &cuhl, &ao, &asz, &osz) == 0) + { + printf ("cuhl = %zu, o = %llu, asz = %hhu, osz = %hhu, ncu = %llu\n", + cuhl, (unsigned long long int) ao, + asz, osz, (unsigned long long int) ncu); + + Dwarf_Die die_mem; + Dwarf_Die *die = dwarf_offdie (dbg, o + cuhl, &die_mem); + if (die == NULL) + { + printf ("%s: cannot get CU die\n", argv[cnt]); + result = 1; + break; + } + + Dwarf_Files *files; + size_t nfiles; + if (dwarf_getsrcfiles (die, &files, &nfiles) != 0) + { + printf ("%s: cannot get files\n", argv[cnt]); + result = 1; + break; + } + + for (size_t i = 0; i < nfiles; ++i) + printf (" file[%zu] = \"%s\"\n", i, + dwarf_filesrc (files, i, NULL, NULL)); + + o = ncu; + } + + dwarf_end (dbg); + close (fd); + } + + return result; +} diff --git a/tests/get-lines.c b/tests/get-lines.c new file mode 100644 index 0000000..6a8c076 --- /dev/null +++ b/tests/get-lines.c @@ -0,0 +1,129 @@ +/* Copyright (C) 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include + + +int +main (int argc, char *argv[]) +{ + int result = 0; + int cnt; + + for (cnt = 1; cnt < argc; ++cnt) + { + int fd = open (argv[cnt], O_RDONLY); + + Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); + if (dbg == NULL) + { + printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (-1)); + close (fd); + continue; + } + + Dwarf_Off cuoff = 0; + Dwarf_Off old_cuoff = 0; + size_t hsize; + Dwarf_Off ao; + uint8_t asz; + uint8_t osz; + while (dwarf_nextcu (dbg, cuoff, &cuoff, &hsize, &ao, &asz, &osz) == 0) + { + printf ("cuhl = %zu, o = %llu, asz = %hhu, osz = %hhu, ncu = %llu\n", + hsize, (unsigned long long int) ao, + asz, osz, (unsigned long long int) cuoff); + + /* Get the DIE for the CU. */ + Dwarf_Die die; + if (dwarf_offdie (dbg, old_cuoff + hsize, &die) == NULL) + { + /* Something went wrong. */ + printf ("%s: cannot get CU die\n", argv[cnt]); + result = 1; + break; + } + old_cuoff = cuoff; + + Dwarf_Lines *lb; + size_t nlb; + if (dwarf_getsrclines (&die, &lb, &nlb) != 0) + { + printf ("%s: cannot get lines\n", argv[cnt]); + result = 1; + break; + } + + printf (" %zu lines\n", nlb); + + for (size_t i = 0; i < nlb; ++i) + { + Dwarf_Line *l = dwarf_onesrcline (lb, i); + if (l == NULL) + { + printf ("%s: cannot get individual line\n", argv[cnt]); + result = 1; + break; + } + + Dwarf_Addr addr; + if (dwarf_lineaddr (l, &addr) != 0) + addr = 0; + const char *file = dwarf_linesrc (l, NULL, NULL); + int line; + if (dwarf_lineno (l, &line) != 0) + line = 0; + + printf ("%" PRIx64 ": %s:%d:", (uint64_t) addr, + file ?: "???", line); + + int column; + if (dwarf_linecol (l, &column) != 0) + column = 0; + if (column >= 0) + printf ("%d:", column); + + bool is_stmt; + if (dwarf_linebeginstatement (l, &is_stmt) != 0) + is_stmt = false; + bool end_sequence; + if (dwarf_lineendsequence (l, &end_sequence) != 0) + end_sequence = false; + bool basic_block; + if (dwarf_lineblock (l, &basic_block) != 0) + basic_block = false; + bool prologue_end; + if (dwarf_lineprologueend (l, &prologue_end) != 0) + prologue_end = false; + bool epilogue_begin; + if (dwarf_lineepiloguebegin (l, &epilogue_begin) != 0) + epilogue_begin = false; + + printf (" is_stmt:%s, end_seq:%s, bb:%s, prologue:%s, epilogue:%s\n", + is_stmt ? "yes" : "no", end_sequence ? "yes" : "no", + basic_block ? "yes" : "no", prologue_end ? "yes" : "no", + epilogue_begin ? "yes" : "no"); + } + } + + dwarf_end (dbg); + close (fd); + } + + return result; +} diff --git a/tests/get-pubnames.c b/tests/get-pubnames.c new file mode 100644 index 0000000..e2791a2 --- /dev/null +++ b/tests/get-pubnames.c @@ -0,0 +1,90 @@ +/* Copyright (C) 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include + + +static int globcnt; + +static int +callback (Dwarf *dbg, Dwarf_Global *gl, void *arg __attribute__ ((unused))) +{ + int result = DWARF_CB_OK; + + printf (" [%2d] \"%s\", die: %llu, cu: %llu\n", + globcnt++, gl->name, (unsigned long long int) gl->die_offset, + (unsigned long long int) gl->cu_offset); + + Dwarf_Die cu_die; + const char *cuname; + if (dwarf_offdie (dbg, gl->cu_offset, &cu_die) == NULL + || (cuname = dwarf_diename (&cu_die)) == NULL) + { + puts ("failed to get CU die"); + result = DWARF_CB_ABORT; + } + else + printf ("CU name: \"%s\"\n", cuname); + + const char *diename; + Dwarf_Die die; + if (dwarf_offdie (dbg, gl->die_offset, &die) == NULL + || (diename = dwarf_diename (&die)) == NULL) + { + puts ("failed to get object die"); + result = DWARF_CB_ABORT; + } + else + printf ("object name: \"%s\"\n", diename); + + return result; +} + + +int +main (int argc, char *argv[]) +{ + int result = 0; + int cnt; + + for (cnt = 1; cnt < argc; ++cnt) + { + int fd = open (argv[cnt], O_RDONLY); + Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); + if (dbg == NULL) + { + printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (-1)); + result = 1; + close (fd); + continue; + } + + globcnt = 0; + + if (dwarf_getpubnames (dbg, callback, NULL, 0) != 0) + { + printf ("dwarf_get_pubnames didn't return zero: %s\n", + dwarf_errmsg (-1)); + result = 1; + } + + dwarf_end (dbg); + close (fd); + } + + return result; +} diff --git a/tests/hash.c b/tests/hash.c new file mode 100644 index 0000000..afe853b --- /dev/null +++ b/tests/hash.c @@ -0,0 +1,41 @@ +/* Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + + +static int +check (const char *name, unsigned long int expected) +{ + unsigned long int actual = elf_hash (name); + + return actual != expected; +} + + +int +main (void) +{ + int status; + + /* Check some names. We know what the expected result is. */ + status = check ("_DYNAMIC", 165832675); + status |= check ("_GLOBAL_OFFSET_TABLE_", 102264335); + + return status; +} diff --git a/tests/line2addr.c b/tests/line2addr.c new file mode 100644 index 0000000..d2017fb --- /dev/null +++ b/tests/line2addr.c @@ -0,0 +1,65 @@ +#include +#include +#include +#include +#include +#include + + +int +main (int argc, char *argv[]) +{ + for (int cnt = 1; cnt < argc; ++cnt) + { + char *fname; + char *file; + int line; + + switch (sscanf (argv[cnt], "%a[^:]:%a[^:]:%d", + &fname, &file, &line)) + { + default: + case 0: + case 1: + printf ("ignored %s\n", argv[cnt]); + continue; + case 2: + line = 0; + break; + case 3: + break; + } + + int fd = open (fname, O_RDONLY); + if (fd == -1) + continue; + + Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); + if (dbg != NULL) + { + Dwarf_Line **lines = NULL; + size_t nlines = 0; + + if (dwarf_getsrc_file (dbg, file, line, 0, &lines, &nlines) == 0) + { + for (size_t inner = 0; inner < nlines; ++inner) + { + Dwarf_Addr addr; + if (dwarf_lineaddr (lines[inner], &addr) == 0) + printf ("%s -> %#" PRIxMAX "\n", + argv[cnt], (uintmax_t) addr); + } + + free (lines); + } + + dwarf_end (dbg); + } + + close (fd); + free (fname); + free (file); + } + + return 0; +} diff --git a/tests/msg_tst.c b/tests/msg_tst.c new file mode 100644 index 0000000..67e63c0 --- /dev/null +++ b/tests/msg_tst.c @@ -0,0 +1,99 @@ +/* Copyright (C) 2002 Red Hat, Inc. + Written by Ulrich Drepper , 2002. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +#include +#include +#include + +#include + +static struct +{ + int id; + const char *expected; +} libelf_msgs[ELF_E_NUM] = + { + { ELF_E_NOERROR, "no error" }, + { ELF_E_UNKNOWN_ERROR, "unknown error" }, + { ELF_E_UNKNOWN_VERSION, "unknown version" }, + { ELF_E_UNKNOWN_TYPE, "unknown type" }, + { ELF_E_INVALID_HANDLE, "invalid `Elf' handle" }, + { ELF_E_SOURCE_SIZE, "invalid size of source operand" }, + { ELF_E_DEST_SIZE, "invalid size of destination operand" }, + { ELF_E_INVALID_ENCODING, "invalid encoding" }, + { ELF_E_NOMEM, "out of memory" }, + { ELF_E_INVALID_FILE, "invalid file descriptor" }, + { ELF_E_INVALID_OP, "invalid operation" }, + { ELF_E_NO_VERSION, "ELF version not set" }, + { ELF_E_INVALID_CMD, "invalid command" }, + { ELF_E_RANGE, "offset out of range" }, + { ELF_E_ARCHIVE_FMAG, "invalid fmag field in archive header" }, + { ELF_E_INVALID_ARCHIVE, "invalid archive file" }, + { ELF_E_NO_ARCHIVE, "descriptor is not for an archive" }, + { ELF_E_NO_INDEX, "no index available" }, + { ELF_E_READ_ERROR, "cannot read data from file" }, + { ELF_E_WRITE_ERROR, "cannot write data to file" }, + { ELF_E_INVALID_CLASS, "invalid binary class" }, + { ELF_E_INVALID_INDEX, "invalid section index" }, + { ELF_E_INVALID_OPERAND, "invalid operand" }, + { ELF_E_INVALID_SECTION, "invalid section" }, + { ELF_E_INVALID_COMMAND, "invalid command" }, + { ELF_E_WRONG_ORDER_EHDR, "executable header not created first" }, + { ELF_E_FD_DISABLED, "file descriptor disabled" }, + { ELF_E_FD_MISMATCH, "archive/member fildes mismatch" }, + { ELF_E_OFFSET_RANGE, "offset out of range" }, + { ELF_E_NOT_NUL_SECTION, "cannot manipulate null section" }, + { ELF_E_DATA_MISMATCH, "data/scn mismatch" }, + { ELF_E_INVALID_SECTION_HEADER, "invalid section header" }, + { ELF_E_INVALID_DATA, "invalid data" }, + { ELF_E_DATA_ENCODING, "unknown data encoding" }, + { ELF_E_SECTION_TOO_SMALL, "section `sh_size' too small for data" }, + { ELF_E_INVALID_ALIGN, "invalid section alignment" }, + { ELF_E_INVALID_SHENTSIZE, "invalid section entry size" }, + { ELF_E_UPDATE_RO, "update() for write on read-only file" }, + { ELF_E_NOFILE, "no such file" }, + { ELF_E_GROUP_NOT_REL, + "only relocatable files can contain section groups" }, + { ELF_E_INVALID_PHDR, + "program header only allowed in executables and shared objects" }, + { ELF_E_NO_PHDR, + "file has no program header" } + }; + + +int +main (void) +{ + size_t cnt; + int result = EXIT_SUCCESS; + + /* Clear the error state. */ + (void) elf_errno (); + + /* Check all the messages of libelf. */ + for (cnt = 1; cnt < ELF_E_NUM; ++cnt) + { + const char *str = elf_errmsg (libelf_msgs[cnt].id); + + if (strcmp (str, libelf_msgs[cnt].expected) != 0) + { + printf ("libelf msg %zu: expected \"%s\", got \"%s\"\n", + cnt, libelf_msgs[cnt].expected, str); + result = EXIT_FAILURE; + } + } + + return result; +} diff --git a/tests/newfile.c b/tests/newfile.c new file mode 100644 index 0000000..32c4091 --- /dev/null +++ b/tests/newfile.c @@ -0,0 +1,166 @@ +/* Copyright (C) 1999, 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1999. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +#include +#include +#include +#include + +static void +print_ehdr (Elf32_Ehdr *ehdr) +{ + int n; + + for (n = 0; n < EI_NIDENT; ++n) + printf (" %02x", ehdr->e_ident[n]); + + printf ("\ntype = %d\nmachine = %d\nversion = %d\nentry = %d\n" + "phoff = %d\nshoff = %d\nflags = %d\nehsize = %d\n" + "phentsize = %d\nphnum = %d\nshentsize = %d\nshnum = %d\n" + "shstrndx = %d\n", + ehdr->e_type, + ehdr->e_machine, + ehdr->e_version, + ehdr->e_entry, + ehdr->e_phoff, + ehdr->e_shoff, + ehdr->e_flags, + ehdr->e_ehsize, + ehdr->e_phentsize, + ehdr->e_phnum, + ehdr->e_shentsize, + ehdr->e_shnum, + ehdr->e_shstrndx); +} + +int +main (int argc, char *argv[] __attribute__ ((unused))) +{ + Elf *elf; + int result = 0; + int fd; + char fname[] = "newfile-XXXXXX"; + + fd = mkstemp (fname); + if (fd == -1) + { + printf ("cannot create temporary file: %m\n"); + exit (1); + } + /* Remove the file when we exit. */ + unlink (fname); + + elf_version (EV_CURRENT); + elf = elf_begin (fd, ELF_C_WRITE, NULL); + if (elf == NULL) + { + printf ("elf_begin: %s\n", elf_errmsg (-1)); + result = 1; + } + else + { + if (elf32_newehdr (elf) == NULL) + { + printf ("elf32_newehdr: %s\n", elf_errmsg (-1)); + result = 1; + } + else + { + Elf32_Ehdr *ehdr = elf32_getehdr (elf); + + if (ehdr == NULL) + { + printf ("elf32_getehdr: %s\n", elf_errmsg (-1)); + result = 1; + } + else + { + int i; + + if (argc > 1) + /* Use argc as a debugging flag. */ + print_ehdr (ehdr); + + /* Some tests. */ + for (i = 0; i < EI_NIDENT; ++i) + if (ehdr->e_ident[i] != 0) + { + printf ("ehdr->e_ident[%d] != 0\n", i); + result = 1; + break; + } + +#define VALUE_TEST(name, val) \ + if (ehdr->name != val) \ + { \ + printf ("ehdr->%s != %d\n", #name, val); \ + result = 1; \ + } +#define ZERO_TEST(name) VALUE_TEST (name, 0) + ZERO_TEST (e_type); + ZERO_TEST (e_machine); + ZERO_TEST (e_version); + ZERO_TEST (e_entry); + ZERO_TEST (e_phoff); + ZERO_TEST (e_shoff); + ZERO_TEST (e_flags); + ZERO_TEST (e_ehsize); + ZERO_TEST (e_phentsize); + ZERO_TEST (e_phnum); + ZERO_TEST (e_shentsize); + ZERO_TEST (e_shnum); + ZERO_TEST (e_shstrndx); + + if (elf32_newphdr (elf, 10) == NULL) + { + printf ("elf32_newphdr: %s\n", elf_errmsg (-1)); + result = 1; + } + else + { + if (argc > 1) + print_ehdr (ehdr); + + ehdr = elf32_getehdr (elf); + if (ehdr == NULL) + { + printf ("elf32_getehdr (#2): %s\n", elf_errmsg (-1)); + result = 1; + } + else + { + ZERO_TEST (e_type); + ZERO_TEST (e_machine); + ZERO_TEST (e_version); + ZERO_TEST (e_entry); + ZERO_TEST (e_phoff); + ZERO_TEST (e_shoff); + ZERO_TEST (e_flags); + ZERO_TEST (e_ehsize); + VALUE_TEST (e_phentsize, (int) sizeof (Elf32_Phdr)); + VALUE_TEST (e_phnum, 10); + ZERO_TEST (e_shentsize); + ZERO_TEST (e_shnum); + ZERO_TEST (e_shstrndx); + } + } + } + } + + (void) elf_end (elf); + } + + return result; +} diff --git a/tests/newscn.c b/tests/newscn.c new file mode 100644 index 0000000..8c8b335 --- /dev/null +++ b/tests/newscn.c @@ -0,0 +1,58 @@ +/* Copyright (C) 1999, 2000, 2001, 2002, 2005 Red Hat, Inc. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include +#include +#include +#include + + +int +main (void) +{ + Elf *elf; + int fd; + Elf_Scn *section; + + if (elf_version (EV_CURRENT) == EV_NONE) + { + fprintf (stderr, "library fd of date\n"); + exit (1); + } + + char name[] = "test.XXXXXX"; + fd = mkstemp (name); + if (fd < 0) + { + fprintf (stderr, "Failed to open fdput file: %s\n", name); + exit (1); + } + unlink (name); + + elf = elf_begin (fd, ELF_C_WRITE, NULL); + if (elf == NULL) + { + fprintf (stderr, "Failed to elf_begin fdput file: %s\n", name); + exit (1); + } + + section = elf_newscn (elf); + section = elf_nextscn (elf, section); + assert (section == NULL); + + elf_end (elf); + close (fd); + + return 0; +} diff --git a/tests/run-allfcts.sh b/tests/run-allfcts.sh new file mode 100644 index 0000000..51fe75c --- /dev/null +++ b/tests/run-allfcts.sh @@ -0,0 +1,46 @@ +#! /bin/sh +# Copyright (C) 2005 Red Hat, Inc. +# Written by Ulrich Drepper , 2005. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile.bz2 > testfile 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile2.bz2 > testfile2 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile8.bz2 > testfile8 2>/dev/null || exit 0 + +./allfcts testfile testfile2 testfile8 > allfcts.out + +diff -u allfcts.out - <<"EOF" +/home/drepper/gnu/new-bu/build/ttt/m.c:5:main +/home/drepper/gnu/new-bu/build/ttt/b.c:4:bar +/home/drepper/gnu/new-bu/build/ttt/f.c:3:foo +/shoggoth/drepper/b.c:4:bar +/shoggoth/drepper/f.c:3:foo +/shoggoth/drepper/m.c:5:main +/home/drepper/gnu/elfutils/build/src/../../src/strip.c:107:main +/home/drepper/gnu/elfutils/build/src/../../src/strip.c:159:print_version +/home/drepper/gnu/elfutils/build/src/../../src/strip.c:173:parse_opt +/home/drepper/gnu/elfutils/build/src/../../src/strip.c:201:more_help +/home/drepper/gnu/elfutils/build/src/../../src/strip.c:217:process_file +/usr/include/sys/stat.h:375:stat64 +/home/drepper/gnu/elfutils/build/src/../../src/strip.c:291:crc32_file +/home/drepper/gnu/elfutils/build/src/../../src/strip.c:313:handle_elf +EOF + +rm -f testfile testfile2 testfile8 allfcts.out + +exit 0 diff --git a/tests/run-arextract.sh b/tests/run-arextract.sh new file mode 100644 index 0000000..69ac0bc --- /dev/null +++ b/tests/run-arextract.sh @@ -0,0 +1,33 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002, 2005 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. + +archive=../libelf/libelf.a +if test -f $archive; then + # The file is really available (i.e., no shared-only built). + echo -n "Extracting symbols... $ac_c" + + # The files we are looking at. + for f in ../libelf/*.o; do + ./arextract $archive `basename $f` arextract.test || exit 1 + cmp $f arextract.test || { + echo "Extraction of $1 failed" + exit 1 + } + rm -f ${objpfx}arextract.test + done + + echo "done" +fi + +exit 0 diff --git a/tests/run-arsymtest.sh b/tests/run-arsymtest.sh new file mode 100644 index 0000000..793cdb8 --- /dev/null +++ b/tests/run-arsymtest.sh @@ -0,0 +1,41 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. + +lib=../libelf/libelf.a +okfile=arsymtest.ok +tmpfile=arsymtest.tmp +testfile=arsymtest.test + +result=0 +if test -f $lib; then + # Generate list using `nm' we check against. + nm -s $lib | + sed -e '1,/^Arch/d' -e '/^$/,$d' | + sort > $okfile + + # Now run our program using libelf. + ./arsymtest $lib $tmpfile || exit 1 + sort $tmpfile > $testfile + rm $tmpfile + + # Compare the outputs. + if cmp $okfile $testfile; then + result=0 + rm $testfile $okfile + else + result=1 + fi +fi + +exit $result diff --git a/tests/run-ecp-test.sh b/tests/run-ecp-test.sh new file mode 100644 index 0000000..e430496 --- /dev/null +++ b/tests/run-ecp-test.sh @@ -0,0 +1,25 @@ +#! /bin/sh +# Copyright (C) 2002 Red Hat, Inc. +# Written by Jakub Jelinek , 2002. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile10.bz2 > testfile10 2>/dev/null || exit 0 + +./ecp testfile10 testfile10.tmp + +cmp testfile10 testfile10.tmp + +rm -f testfile10 testfile10.tmp + +exit 0 diff --git a/tests/run-ecp-test2.sh b/tests/run-ecp-test2.sh new file mode 100644 index 0000000..143c70a --- /dev/null +++ b/tests/run-ecp-test2.sh @@ -0,0 +1,23 @@ +#! /bin/sh +# Copyright (C) 2002 Red Hat, Inc. +# Written by Jakub Jelinek , 2002. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile2.bz2 > testfile2 2>/dev/null || exit 0 + +./ecp testfile2 testfile2.tmp + +rm -f testfile2 testfile2.tmp + +exit 0 diff --git a/tests/run-elflint-test.sh b/tests/run-elflint-test.sh new file mode 100644 index 0000000..f008ccd --- /dev/null +++ b/tests/run-elflint-test.sh @@ -0,0 +1,28 @@ +#! /bin/sh +# Copyright (C) 2005 Red Hat, Inc. +# Written by Ulrich Drepper , 2005. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile18.bz2 > testfile18 2>/dev/null || exit 0 + +LD_LIBRARY_PATH=../libebl:../libelf${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH \ + ../src/elflint --gnu testfile18 >& elflint-test.out || : + +diff -u elflint-test.out - <<"EOF" +section [ 8] '.rela.dyn': relocation 1: copy relocation against symbol of type FUNC +EOF + +rm -f testfile18 elflint-test.out + +exit 0 diff --git a/tests/run-get-aranges.sh b/tests/run-get-aranges.sh new file mode 100644 index 0000000..26b2986 --- /dev/null +++ b/tests/run-get-aranges.sh @@ -0,0 +1,71 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile.bz2 > testfile 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile2.bz2 > testfile2 2>/dev/null || exit 0 + +./get-aranges testfile testfile2 > get-aranges.out + +cmp get-aranges.out - <<"EOF" +0x804842b: not in range +CU name: "m.c" +CU name: "m.c" +CU name: "m.c" +0x804845a: not in range +0x804845b: not in range +CU name: "b.c" +CU name: "b.c" +CU name: "b.c" +0x8048466: not in range +0x8048467: not in range +CU name: "f.c" +CU name: "f.c" +CU name: "f.c" +0x8048472: not in range + [ 0] start: 0x804842c, length: 46, cu: 11 +CU name: "m.c" + [ 1] start: 0x804845c, length: 10, cu: 202 +CU name: "b.c" + [ 2] start: 0x8048468, length: 10, cu: 5628 +CU name: "f.c" +0x804842b: not in range +0x804842c: not in range +0x804843c: not in range +0x8048459: not in range +0x804845a: not in range +0x804845b: not in range +0x804845c: not in range +0x8048460: not in range +0x8048465: not in range +0x8048466: not in range +0x8048467: not in range +0x8048468: not in range +0x8048470: not in range +0x8048471: not in range +0x8048472: not in range + [ 0] start: 0x10000470, length: 32, cu: 11 +CU name: "b.c" + [ 1] start: 0x10000490, length: 32, cu: 2429 +CU name: "f.c" + [ 2] start: 0x100004b0, length: 100, cu: 2532 +CU name: "m.c" +EOF + +rm -f testfile testfile2 get-aranges.out + +exit 0 diff --git a/tests/run-get-files.sh b/tests/run-get-files.sh new file mode 100644 index 0000000..7af5c13 --- /dev/null +++ b/tests/run-get-files.sh @@ -0,0 +1,64 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002, 2004 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile.bz2 > testfile 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile2.bz2 > testfile2 2>/dev/null || exit 0 + +./get-files testfile testfile2 > get-files.out + +diff -u get-files.out - <<"EOF" +cuhl = 11, o = 0, asz = 4, osz = 4, ncu = 191 + file[0] = "???" + file[1] = "/home/drepper/gnu/new-bu/build/ttt/m.c" +cuhl = 11, o = 114, asz = 4, osz = 4, ncu = 5617 + file[0] = "???" + file[1] = "/home/drepper/gnu/new-bu/build/ttt/b.c" + file[2] = "/usr/lib/gcc-lib/i386-redhat-linux/2.96/include/stddef.h" + file[3] = "/usr/lib/gcc-lib/i386-redhat-linux/2.96/include/stdarg.h" + file[4] = "/usr/include/bits/types.h" + file[5] = "/usr/include/bits/sched.h" + file[6] = "/usr/include/bits/pthreadtypes.h" + file[7] = "/usr/include/stdio.h" + file[8] = "/usr/include/libio.h" + file[9] = "/usr/include/wchar.h" + file[10] = "/usr/include/_G_config.h" + file[11] = "/usr/include/gconv.h" +cuhl = 11, o = 412, asz = 4, osz = 4, ncu = 5752 + file[0] = "???" + file[1] = "/home/drepper/gnu/new-bu/build/ttt/f.c" +cuhl = 11, o = 0, asz = 4, osz = 4, ncu = 2418 + file[0] = "???" + file[1] = "/shoggoth/drepper/b.c" + file[2] = "/home/geoffk/objs/laurel-000912-branch/lib/gcc-lib/powerpc-unknown-linux-gnu/2.96-laurel-000912/include/stddef.h" + file[3] = "/home/geoffk/objs/laurel-000912-branch/lib/gcc-lib/powerpc-unknown-linux-gnu/2.96-laurel-000912/include/stdarg.h" + file[4] = "/shoggoth/drepper/" + file[5] = "/usr/include/bits/types.h" + file[6] = "/usr/include/stdio.h" + file[7] = "/usr/include/libio.h" + file[8] = "/usr/include/_G_config.h" +cuhl = 11, o = 213, asz = 4, osz = 4, ncu = 2521 + file[0] = "???" + file[1] = "/shoggoth/drepper/f.c" +cuhl = 11, o = 267, asz = 4, osz = 4, ncu = 2680 + file[0] = "???" + file[1] = "/shoggoth/drepper/m.c" +EOF + +rm -f testfile testfil2 get-files.out + +exit 0 diff --git a/tests/run-get-lines.sh b/tests/run-get-lines.sh new file mode 100644 index 0000000..70c9cd8 --- /dev/null +++ b/tests/run-get-lines.sh @@ -0,0 +1,67 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002, 2004 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile.bz2 > testfile 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile2.bz2 > testfile2 2>/dev/null || exit 0 + +./get-lines testfile testfile2 > get-lines.out + +diff -u get-lines.out - <<"EOF" +cuhl = 11, o = 0, asz = 4, osz = 4, ncu = 191 + 5 lines +804842c: /home/drepper/gnu/new-bu/build/ttt/m.c:5:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +8048432: /home/drepper/gnu/new-bu/build/ttt/m.c:6:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +804844d: /home/drepper/gnu/new-bu/build/ttt/m.c:7:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +8048458: /home/drepper/gnu/new-bu/build/ttt/m.c:8:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +804845a: /home/drepper/gnu/new-bu/build/ttt/m.c:8:0: is_stmt:yes, end_seq:yes, bb:no, prologue:no, epilogue:no +cuhl = 11, o = 114, asz = 4, osz = 4, ncu = 5617 + 4 lines +804845c: /home/drepper/gnu/new-bu/build/ttt/b.c:4:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +804845f: /home/drepper/gnu/new-bu/build/ttt/b.c:5:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +8048464: /home/drepper/gnu/new-bu/build/ttt/b.c:6:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +8048466: /home/drepper/gnu/new-bu/build/ttt/b.c:6:0: is_stmt:yes, end_seq:yes, bb:no, prologue:no, epilogue:no +cuhl = 11, o = 412, asz = 4, osz = 4, ncu = 5752 + 4 lines +8048468: /home/drepper/gnu/new-bu/build/ttt/f.c:3:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +804846b: /home/drepper/gnu/new-bu/build/ttt/f.c:4:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +8048470: /home/drepper/gnu/new-bu/build/ttt/f.c:5:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +8048472: /home/drepper/gnu/new-bu/build/ttt/f.c:5:0: is_stmt:yes, end_seq:yes, bb:no, prologue:no, epilogue:no +cuhl = 11, o = 0, asz = 4, osz = 4, ncu = 2418 + 4 lines +10000470: /shoggoth/drepper/b.c:4:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +1000047c: /shoggoth/drepper/b.c:5:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +10000480: /shoggoth/drepper/b.c:6:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +10000490: /shoggoth/drepper/b.c:6:0: is_stmt:yes, end_seq:yes, bb:no, prologue:no, epilogue:no +cuhl = 11, o = 213, asz = 4, osz = 4, ncu = 2521 + 4 lines +10000490: /shoggoth/drepper/f.c:3:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +1000049c: /shoggoth/drepper/f.c:4:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +100004a0: /shoggoth/drepper/f.c:5:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +100004b0: /shoggoth/drepper/f.c:5:0: is_stmt:yes, end_seq:yes, bb:no, prologue:no, epilogue:no +cuhl = 11, o = 267, asz = 4, osz = 4, ncu = 2680 + 5 lines +100004b0: /shoggoth/drepper/m.c:5:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +100004cc: /shoggoth/drepper/m.c:6:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +100004e8: /shoggoth/drepper/m.c:7:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +100004f4: /shoggoth/drepper/m.c:8:0: is_stmt:yes, end_seq:no, bb:no, prologue:no, epilogue:no +10000514: /shoggoth/drepper/m.c:8:0: is_stmt:yes, end_seq:yes, bb:no, prologue:no, epilogue:no +EOF + +rm -f testfile testfile2 get-lines.out + +exit 0 diff --git a/tests/run-get-pubnames.sh b/tests/run-get-pubnames.sh new file mode 100644 index 0000000..a232bfd --- /dev/null +++ b/tests/run-get-pubnames.sh @@ -0,0 +1,53 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002, 2003 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile.bz2 > testfile 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile2.bz2 > testfile2 2>/dev/null || exit 0 + +./get-pubnames testfile testfile2 > get-pubnames.out + +diff -u get-pubnames.out - <<"EOF" + [ 0] "main", die: 104, cu: 11 +CU name: "m.c" +object name: "main" + [ 1] "a", die: 174, cu: 11 +CU name: "m.c" +object name: "a" + [ 2] "bar", die: 295, cu: 202 +CU name: "b.c" +object name: "bar" + [ 3] "foo", die: 5721, cu: 5628 +CU name: "f.c" +object name: "foo" + [ 0] "bar", die: 72, cu: 11 +CU name: "b.c" +object name: "bar" + [ 1] "foo", die: 2490, cu: 2429 +CU name: "f.c" +object name: "foo" + [ 2] "main", die: 2593, cu: 2532 +CU name: "m.c" +object name: "main" + [ 3] "a", die: 2663, cu: 2532 +CU name: "m.c" +object name: "a" +EOF + +rm -f testfile testfile2 get-pubnames.out + +exit 0 diff --git a/tests/run-line2addr.sh b/tests/run-line2addr.sh new file mode 100644 index 0000000..c46c8fd --- /dev/null +++ b/tests/run-line2addr.sh @@ -0,0 +1,44 @@ +#! /bin/sh +# Copyright (C) 2005 Red Hat, Inc. +# Written by Ulrich Drepper , 2005. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile.bz2 > testfile 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile2.bz2 > testfile2 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile8.bz2 > testfile8 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile14.bz2 > testfile14 2>/dev/null || exit 0 + +./line2addr testfile:f.c:4 testfile:f.c:8 testfile2:m.c:6 testfile2:b.c:1 testfile8:strip.c:953 testfile8:strip.c:365 testfile14:v.c:6 > line2addr.out + +diff -u line2addr.out - <<"EOF" +testfile:f.c:4 -> 0x804846b +testfile2:m.c:6 -> 0x100004cc +testfile2:b.c:1 -> 0x10000470 +testfile8:strip.c:953 -> 0x169f +testfile8:strip.c:953 -> 0x16aa +testfile8:strip.c:365 -> 0x278b +testfile8:strip.c:365 -> 0x2797 +testfile14:v.c:6 -> 0x400468 +testfile14:v.c:6 -> 0x400487 +EOF + +rm -f testfile testfile2 testfile8 testfile14 line2addr.out + +exit 0 diff --git a/tests/run-show-abbrev.sh b/tests/run-show-abbrev.sh new file mode 100644 index 0000000..78812a5 --- /dev/null +++ b/tests/run-show-abbrev.sh @@ -0,0 +1,355 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002, 2003, 2004 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile.bz2 > testfile 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile2.bz2 > testfile2 2>/dev/null || exit 0 + +./show-abbrev testfile testfile2 > show-abbrev.out + +diff -u show-abbrev.out - <<"EOF" +abbrev[0]: code = 1, tag = 17, children = 1 +abbrev[0]: attr[0]: code = 16, form = 6, offset = 0 +abbrev[0]: attr[1]: code = 18, form = 1, offset = 2 +abbrev[0]: attr[2]: code = 17, form = 1, offset = 4 +abbrev[0]: attr[3]: code = 3, form = 8, offset = 6 +abbrev[0]: attr[4]: code = 27, form = 8, offset = 8 +abbrev[0]: attr[5]: code = 37, form = 8, offset = 10 +abbrev[0]: attr[6]: code = 19, form = 11, offset = 12 +abbrev[19]: code = 2, tag = 46, children = 1 +abbrev[19]: attr[0]: code = 1, form = 19, offset = 19 +abbrev[19]: attr[1]: code = 63, form = 12, offset = 21 +abbrev[19]: attr[2]: code = 3, form = 8, offset = 23 +abbrev[19]: attr[3]: code = 58, form = 11, offset = 25 +abbrev[19]: attr[4]: code = 59, form = 11, offset = 27 +abbrev[19]: attr[5]: code = 39, form = 12, offset = 29 +abbrev[19]: attr[6]: code = 73, form = 19, offset = 31 +abbrev[19]: attr[7]: code = 17, form = 1, offset = 33 +abbrev[19]: attr[8]: code = 18, form = 1, offset = 35 +abbrev[19]: attr[9]: code = 64, form = 10, offset = 37 +abbrev[44]: code = 3, tag = 46, children = 1 +abbrev[44]: attr[0]: code = 1, form = 19, offset = 44 +abbrev[44]: attr[1]: code = 63, form = 12, offset = 46 +abbrev[44]: attr[2]: code = 3, form = 8, offset = 48 +abbrev[44]: attr[3]: code = 58, form = 11, offset = 50 +abbrev[44]: attr[4]: code = 59, form = 11, offset = 52 +abbrev[44]: attr[5]: code = 73, form = 19, offset = 54 +abbrev[44]: attr[6]: code = 60, form = 12, offset = 56 +abbrev[63]: code = 4, tag = 24, children = 0 +abbrev[68]: code = 5, tag = 46, children = 1 +abbrev[68]: attr[0]: code = 63, form = 12, offset = 68 +abbrev[68]: attr[1]: code = 3, form = 8, offset = 70 +abbrev[68]: attr[2]: code = 58, form = 11, offset = 72 +abbrev[68]: attr[3]: code = 59, form = 11, offset = 74 +abbrev[68]: attr[4]: code = 73, form = 19, offset = 76 +abbrev[68]: attr[5]: code = 60, form = 12, offset = 78 +abbrev[85]: code = 6, tag = 36, children = 0 +abbrev[85]: attr[0]: code = 3, form = 8, offset = 85 +abbrev[85]: attr[1]: code = 11, form = 11, offset = 87 +abbrev[85]: attr[2]: code = 62, form = 11, offset = 89 +abbrev[96]: code = 7, tag = 52, children = 0 +abbrev[96]: attr[0]: code = 3, form = 8, offset = 96 +abbrev[96]: attr[1]: code = 58, form = 11, offset = 98 +abbrev[96]: attr[2]: code = 59, form = 11, offset = 100 +abbrev[96]: attr[3]: code = 73, form = 19, offset = 102 +abbrev[96]: attr[4]: code = 63, form = 12, offset = 104 +abbrev[96]: attr[5]: code = 2, form = 10, offset = 106 +abbrev[0]: code = 1, tag = 17, children = 1 +abbrev[0]: attr[0]: code = 16, form = 6, offset = 114 +abbrev[0]: attr[1]: code = 18, form = 1, offset = 116 +abbrev[0]: attr[2]: code = 17, form = 1, offset = 118 +abbrev[0]: attr[3]: code = 3, form = 8, offset = 120 +abbrev[0]: attr[4]: code = 27, form = 8, offset = 122 +abbrev[0]: attr[5]: code = 37, form = 8, offset = 124 +abbrev[0]: attr[6]: code = 19, form = 11, offset = 126 +abbrev[19]: code = 2, tag = 46, children = 0 +abbrev[19]: attr[0]: code = 63, form = 12, offset = 133 +abbrev[19]: attr[1]: code = 3, form = 8, offset = 135 +abbrev[19]: attr[2]: code = 58, form = 11, offset = 137 +abbrev[19]: attr[3]: code = 59, form = 11, offset = 139 +abbrev[19]: attr[4]: code = 39, form = 12, offset = 141 +abbrev[19]: attr[5]: code = 73, form = 19, offset = 143 +abbrev[19]: attr[6]: code = 17, form = 1, offset = 145 +abbrev[19]: attr[7]: code = 18, form = 1, offset = 147 +abbrev[19]: attr[8]: code = 64, form = 10, offset = 149 +abbrev[42]: code = 3, tag = 36, children = 0 +abbrev[42]: attr[0]: code = 3, form = 8, offset = 156 +abbrev[42]: attr[1]: code = 11, form = 11, offset = 158 +abbrev[42]: attr[2]: code = 62, form = 11, offset = 160 +abbrev[53]: code = 4, tag = 22, children = 0 +abbrev[53]: attr[0]: code = 3, form = 8, offset = 167 +abbrev[53]: attr[1]: code = 58, form = 11, offset = 169 +abbrev[53]: attr[2]: code = 59, form = 11, offset = 171 +abbrev[53]: attr[3]: code = 73, form = 19, offset = 173 +abbrev[66]: code = 5, tag = 15, children = 0 +abbrev[66]: attr[0]: code = 11, form = 11, offset = 180 +abbrev[73]: code = 6, tag = 15, children = 0 +abbrev[73]: attr[0]: code = 11, form = 11, offset = 187 +abbrev[73]: attr[1]: code = 73, form = 19, offset = 189 +abbrev[82]: code = 7, tag = 19, children = 1 +abbrev[82]: attr[0]: code = 1, form = 19, offset = 196 +abbrev[82]: attr[1]: code = 11, form = 11, offset = 198 +abbrev[82]: attr[2]: code = 58, form = 11, offset = 200 +abbrev[82]: attr[3]: code = 59, form = 11, offset = 202 +abbrev[95]: code = 8, tag = 13, children = 0 +abbrev[95]: attr[0]: code = 3, form = 8, offset = 209 +abbrev[95]: attr[1]: code = 58, form = 11, offset = 211 +abbrev[95]: attr[2]: code = 59, form = 11, offset = 213 +abbrev[95]: attr[3]: code = 73, form = 19, offset = 215 +abbrev[95]: attr[4]: code = 56, form = 10, offset = 217 +abbrev[110]: code = 9, tag = 1, children = 1 +abbrev[110]: attr[0]: code = 1, form = 19, offset = 224 +abbrev[110]: attr[1]: code = 73, form = 19, offset = 226 +abbrev[119]: code = 10, tag = 33, children = 0 +abbrev[119]: attr[0]: code = 73, form = 19, offset = 233 +abbrev[119]: attr[1]: code = 47, form = 11, offset = 235 +abbrev[128]: code = 11, tag = 19, children = 1 +abbrev[128]: attr[0]: code = 1, form = 19, offset = 242 +abbrev[128]: attr[1]: code = 3, form = 8, offset = 244 +abbrev[128]: attr[2]: code = 11, form = 11, offset = 246 +abbrev[128]: attr[3]: code = 58, form = 11, offset = 248 +abbrev[128]: attr[4]: code = 59, form = 11, offset = 250 +abbrev[143]: code = 12, tag = 19, children = 0 +abbrev[143]: attr[0]: code = 3, form = 8, offset = 257 +abbrev[143]: attr[1]: code = 60, form = 12, offset = 259 +abbrev[152]: code = 13, tag = 13, children = 0 +abbrev[152]: attr[0]: code = 3, form = 8, offset = 266 +abbrev[152]: attr[1]: code = 58, form = 11, offset = 268 +abbrev[152]: attr[2]: code = 59, form = 5, offset = 270 +abbrev[152]: attr[3]: code = 73, form = 19, offset = 272 +abbrev[152]: attr[4]: code = 56, form = 10, offset = 274 +abbrev[167]: code = 14, tag = 22, children = 0 +abbrev[167]: attr[0]: code = 3, form = 8, offset = 281 +abbrev[167]: attr[1]: code = 58, form = 11, offset = 283 +abbrev[167]: attr[2]: code = 59, form = 5, offset = 285 +abbrev[167]: attr[3]: code = 73, form = 19, offset = 287 +abbrev[180]: code = 15, tag = 23, children = 1 +abbrev[180]: attr[0]: code = 1, form = 19, offset = 294 +abbrev[180]: attr[1]: code = 11, form = 11, offset = 296 +abbrev[180]: attr[2]: code = 58, form = 11, offset = 298 +abbrev[180]: attr[3]: code = 59, form = 11, offset = 300 +abbrev[193]: code = 16, tag = 13, children = 0 +abbrev[193]: attr[0]: code = 3, form = 8, offset = 307 +abbrev[193]: attr[1]: code = 58, form = 11, offset = 309 +abbrev[193]: attr[2]: code = 59, form = 11, offset = 311 +abbrev[193]: attr[3]: code = 73, form = 19, offset = 313 +abbrev[206]: code = 17, tag = 4, children = 1 +abbrev[206]: attr[0]: code = 1, form = 19, offset = 320 +abbrev[206]: attr[1]: code = 11, form = 11, offset = 322 +abbrev[206]: attr[2]: code = 58, form = 11, offset = 324 +abbrev[206]: attr[3]: code = 59, form = 11, offset = 326 +abbrev[219]: code = 18, tag = 40, children = 0 +abbrev[219]: attr[0]: code = 3, form = 8, offset = 333 +abbrev[219]: attr[1]: code = 28, form = 11, offset = 335 +abbrev[228]: code = 19, tag = 38, children = 0 +abbrev[228]: attr[0]: code = 73, form = 19, offset = 342 +abbrev[235]: code = 20, tag = 21, children = 1 +abbrev[235]: attr[0]: code = 1, form = 19, offset = 349 +abbrev[235]: attr[1]: code = 39, form = 12, offset = 351 +abbrev[235]: attr[2]: code = 73, form = 19, offset = 353 +abbrev[246]: code = 21, tag = 5, children = 0 +abbrev[246]: attr[0]: code = 73, form = 19, offset = 360 +abbrev[253]: code = 22, tag = 21, children = 1 +abbrev[253]: attr[0]: code = 1, form = 19, offset = 367 +abbrev[253]: attr[1]: code = 39, form = 12, offset = 369 +abbrev[262]: code = 23, tag = 33, children = 0 +abbrev[262]: attr[0]: code = 73, form = 19, offset = 376 +abbrev[262]: attr[1]: code = 47, form = 6, offset = 378 +abbrev[271]: code = 24, tag = 22, children = 0 +abbrev[271]: attr[0]: code = 3, form = 8, offset = 385 +abbrev[271]: attr[1]: code = 58, form = 11, offset = 387 +abbrev[271]: attr[2]: code = 59, form = 11, offset = 389 +abbrev[282]: code = 25, tag = 4, children = 1 +abbrev[282]: attr[0]: code = 1, form = 19, offset = 396 +abbrev[282]: attr[1]: code = 3, form = 8, offset = 398 +abbrev[282]: attr[2]: code = 11, form = 11, offset = 400 +abbrev[282]: attr[3]: code = 58, form = 11, offset = 402 +abbrev[282]: attr[4]: code = 59, form = 11, offset = 404 +abbrev[0]: code = 1, tag = 17, children = 1 +abbrev[0]: attr[0]: code = 16, form = 6, offset = 412 +abbrev[0]: attr[1]: code = 18, form = 1, offset = 414 +abbrev[0]: attr[2]: code = 17, form = 1, offset = 416 +abbrev[0]: attr[3]: code = 3, form = 8, offset = 418 +abbrev[0]: attr[4]: code = 27, form = 8, offset = 420 +abbrev[0]: attr[5]: code = 37, form = 8, offset = 422 +abbrev[0]: attr[6]: code = 19, form = 11, offset = 424 +abbrev[19]: code = 2, tag = 46, children = 0 +abbrev[19]: attr[0]: code = 63, form = 12, offset = 431 +abbrev[19]: attr[1]: code = 3, form = 8, offset = 433 +abbrev[19]: attr[2]: code = 58, form = 11, offset = 435 +abbrev[19]: attr[3]: code = 59, form = 11, offset = 437 +abbrev[19]: attr[4]: code = 39, form = 12, offset = 439 +abbrev[19]: attr[5]: code = 73, form = 19, offset = 441 +abbrev[19]: attr[6]: code = 17, form = 1, offset = 443 +abbrev[19]: attr[7]: code = 18, form = 1, offset = 445 +abbrev[19]: attr[8]: code = 64, form = 10, offset = 447 +abbrev[42]: code = 3, tag = 36, children = 0 +abbrev[42]: attr[0]: code = 3, form = 8, offset = 454 +abbrev[42]: attr[1]: code = 11, form = 11, offset = 456 +abbrev[42]: attr[2]: code = 62, form = 11, offset = 458 +abbrev[0]: code = 1, tag = 17, children = 1 +abbrev[0]: attr[0]: code = 16, form = 6, offset = 0 +abbrev[0]: attr[1]: code = 18, form = 1, offset = 2 +abbrev[0]: attr[2]: code = 17, form = 1, offset = 4 +abbrev[0]: attr[3]: code = 3, form = 8, offset = 6 +abbrev[0]: attr[4]: code = 27, form = 8, offset = 8 +abbrev[0]: attr[5]: code = 37, form = 8, offset = 10 +abbrev[0]: attr[6]: code = 19, form = 11, offset = 12 +abbrev[19]: code = 2, tag = 46, children = 0 +abbrev[19]: attr[0]: code = 63, form = 12, offset = 19 +abbrev[19]: attr[1]: code = 3, form = 8, offset = 21 +abbrev[19]: attr[2]: code = 58, form = 11, offset = 23 +abbrev[19]: attr[3]: code = 59, form = 11, offset = 25 +abbrev[19]: attr[4]: code = 39, form = 12, offset = 27 +abbrev[19]: attr[5]: code = 73, form = 19, offset = 29 +abbrev[19]: attr[6]: code = 17, form = 1, offset = 31 +abbrev[19]: attr[7]: code = 18, form = 1, offset = 33 +abbrev[19]: attr[8]: code = 64, form = 10, offset = 35 +abbrev[42]: code = 3, tag = 36, children = 0 +abbrev[42]: attr[0]: code = 3, form = 8, offset = 42 +abbrev[42]: attr[1]: code = 11, form = 11, offset = 44 +abbrev[42]: attr[2]: code = 62, form = 11, offset = 46 +abbrev[53]: code = 4, tag = 22, children = 0 +abbrev[53]: attr[0]: code = 3, form = 8, offset = 53 +abbrev[53]: attr[1]: code = 58, form = 11, offset = 55 +abbrev[53]: attr[2]: code = 59, form = 11, offset = 57 +abbrev[53]: attr[3]: code = 73, form = 19, offset = 59 +abbrev[66]: code = 5, tag = 1, children = 1 +abbrev[66]: attr[0]: code = 1, form = 19, offset = 66 +abbrev[66]: attr[1]: code = 3, form = 8, offset = 68 +abbrev[66]: attr[2]: code = 73, form = 19, offset = 70 +abbrev[77]: code = 6, tag = 33, children = 0 +abbrev[77]: attr[0]: code = 73, form = 19, offset = 77 +abbrev[77]: attr[1]: code = 47, form = 11, offset = 79 +abbrev[86]: code = 7, tag = 19, children = 1 +abbrev[86]: attr[0]: code = 1, form = 19, offset = 86 +abbrev[86]: attr[1]: code = 3, form = 8, offset = 88 +abbrev[86]: attr[2]: code = 11, form = 11, offset = 90 +abbrev[86]: attr[3]: code = 58, form = 11, offset = 92 +abbrev[86]: attr[4]: code = 59, form = 11, offset = 94 +abbrev[101]: code = 8, tag = 13, children = 0 +abbrev[101]: attr[0]: code = 3, form = 8, offset = 101 +abbrev[101]: attr[1]: code = 58, form = 11, offset = 103 +abbrev[101]: attr[2]: code = 59, form = 11, offset = 105 +abbrev[101]: attr[3]: code = 73, form = 19, offset = 107 +abbrev[101]: attr[4]: code = 56, form = 10, offset = 109 +abbrev[116]: code = 9, tag = 15, children = 0 +abbrev[116]: attr[0]: code = 11, form = 11, offset = 116 +abbrev[123]: code = 10, tag = 15, children = 0 +abbrev[123]: attr[0]: code = 11, form = 11, offset = 123 +abbrev[123]: attr[1]: code = 73, form = 19, offset = 125 +abbrev[132]: code = 11, tag = 19, children = 1 +abbrev[132]: attr[0]: code = 1, form = 19, offset = 132 +abbrev[132]: attr[1]: code = 11, form = 11, offset = 134 +abbrev[132]: attr[2]: code = 58, form = 11, offset = 136 +abbrev[132]: attr[3]: code = 59, form = 11, offset = 138 +abbrev[145]: code = 12, tag = 1, children = 1 +abbrev[145]: attr[0]: code = 1, form = 19, offset = 145 +abbrev[145]: attr[1]: code = 73, form = 19, offset = 147 +abbrev[154]: code = 13, tag = 22, children = 0 +abbrev[154]: attr[0]: code = 3, form = 8, offset = 154 +abbrev[154]: attr[1]: code = 58, form = 11, offset = 156 +abbrev[154]: attr[2]: code = 59, form = 5, offset = 158 +abbrev[154]: attr[3]: code = 73, form = 19, offset = 160 +abbrev[167]: code = 14, tag = 19, children = 0 +abbrev[167]: attr[0]: code = 3, form = 8, offset = 167 +abbrev[167]: attr[1]: code = 60, form = 12, offset = 169 +abbrev[176]: code = 15, tag = 22, children = 0 +abbrev[176]: attr[0]: code = 3, form = 8, offset = 176 +abbrev[176]: attr[1]: code = 58, form = 11, offset = 178 +abbrev[176]: attr[2]: code = 59, form = 11, offset = 180 +abbrev[187]: code = 16, tag = 21, children = 1 +abbrev[187]: attr[0]: code = 1, form = 19, offset = 187 +abbrev[187]: attr[1]: code = 39, form = 12, offset = 189 +abbrev[187]: attr[2]: code = 73, form = 19, offset = 191 +abbrev[198]: code = 17, tag = 5, children = 0 +abbrev[198]: attr[0]: code = 73, form = 19, offset = 198 +abbrev[205]: code = 18, tag = 38, children = 0 +abbrev[205]: attr[0]: code = 73, form = 19, offset = 205 +abbrev[0]: code = 1, tag = 17, children = 1 +abbrev[0]: attr[0]: code = 16, form = 6, offset = 213 +abbrev[0]: attr[1]: code = 18, form = 1, offset = 215 +abbrev[0]: attr[2]: code = 17, form = 1, offset = 217 +abbrev[0]: attr[3]: code = 3, form = 8, offset = 219 +abbrev[0]: attr[4]: code = 27, form = 8, offset = 221 +abbrev[0]: attr[5]: code = 37, form = 8, offset = 223 +abbrev[0]: attr[6]: code = 19, form = 11, offset = 225 +abbrev[19]: code = 2, tag = 46, children = 0 +abbrev[19]: attr[0]: code = 63, form = 12, offset = 232 +abbrev[19]: attr[1]: code = 3, form = 8, offset = 234 +abbrev[19]: attr[2]: code = 58, form = 11, offset = 236 +abbrev[19]: attr[3]: code = 59, form = 11, offset = 238 +abbrev[19]: attr[4]: code = 39, form = 12, offset = 240 +abbrev[19]: attr[5]: code = 73, form = 19, offset = 242 +abbrev[19]: attr[6]: code = 17, form = 1, offset = 244 +abbrev[19]: attr[7]: code = 18, form = 1, offset = 246 +abbrev[19]: attr[8]: code = 64, form = 10, offset = 248 +abbrev[42]: code = 3, tag = 36, children = 0 +abbrev[42]: attr[0]: code = 3, form = 8, offset = 255 +abbrev[42]: attr[1]: code = 11, form = 11, offset = 257 +abbrev[42]: attr[2]: code = 62, form = 11, offset = 259 +abbrev[0]: code = 1, tag = 17, children = 1 +abbrev[0]: attr[0]: code = 16, form = 6, offset = 267 +abbrev[0]: attr[1]: code = 18, form = 1, offset = 269 +abbrev[0]: attr[2]: code = 17, form = 1, offset = 271 +abbrev[0]: attr[3]: code = 3, form = 8, offset = 273 +abbrev[0]: attr[4]: code = 27, form = 8, offset = 275 +abbrev[0]: attr[5]: code = 37, form = 8, offset = 277 +abbrev[0]: attr[6]: code = 19, form = 11, offset = 279 +abbrev[19]: code = 2, tag = 46, children = 1 +abbrev[19]: attr[0]: code = 1, form = 19, offset = 286 +abbrev[19]: attr[1]: code = 63, form = 12, offset = 288 +abbrev[19]: attr[2]: code = 3, form = 8, offset = 290 +abbrev[19]: attr[3]: code = 58, form = 11, offset = 292 +abbrev[19]: attr[4]: code = 59, form = 11, offset = 294 +abbrev[19]: attr[5]: code = 39, form = 12, offset = 296 +abbrev[19]: attr[6]: code = 73, form = 19, offset = 298 +abbrev[19]: attr[7]: code = 17, form = 1, offset = 300 +abbrev[19]: attr[8]: code = 18, form = 1, offset = 302 +abbrev[19]: attr[9]: code = 64, form = 10, offset = 304 +abbrev[44]: code = 3, tag = 46, children = 1 +abbrev[44]: attr[0]: code = 1, form = 19, offset = 311 +abbrev[44]: attr[1]: code = 63, form = 12, offset = 313 +abbrev[44]: attr[2]: code = 3, form = 8, offset = 315 +abbrev[44]: attr[3]: code = 58, form = 11, offset = 317 +abbrev[44]: attr[4]: code = 59, form = 11, offset = 319 +abbrev[44]: attr[5]: code = 73, form = 19, offset = 321 +abbrev[44]: attr[6]: code = 60, form = 12, offset = 323 +abbrev[63]: code = 4, tag = 24, children = 0 +abbrev[68]: code = 5, tag = 46, children = 1 +abbrev[68]: attr[0]: code = 63, form = 12, offset = 335 +abbrev[68]: attr[1]: code = 3, form = 8, offset = 337 +abbrev[68]: attr[2]: code = 58, form = 11, offset = 339 +abbrev[68]: attr[3]: code = 59, form = 11, offset = 341 +abbrev[68]: attr[4]: code = 73, form = 19, offset = 343 +abbrev[68]: attr[5]: code = 60, form = 12, offset = 345 +abbrev[85]: code = 6, tag = 36, children = 0 +abbrev[85]: attr[0]: code = 3, form = 8, offset = 352 +abbrev[85]: attr[1]: code = 11, form = 11, offset = 354 +abbrev[85]: attr[2]: code = 62, form = 11, offset = 356 +abbrev[96]: code = 7, tag = 52, children = 0 +abbrev[96]: attr[0]: code = 3, form = 8, offset = 363 +abbrev[96]: attr[1]: code = 58, form = 11, offset = 365 +abbrev[96]: attr[2]: code = 59, form = 11, offset = 367 +abbrev[96]: attr[3]: code = 73, form = 19, offset = 369 +abbrev[96]: attr[4]: code = 63, form = 12, offset = 371 +abbrev[96]: attr[5]: code = 2, form = 10, offset = 373 +EOF + +rm -f testfile testfile2 show-abbrev.out + +exit 0 diff --git a/tests/run-show-ciefde.sh b/tests/run-show-ciefde.sh new file mode 100644 index 0000000..b335533 --- /dev/null +++ b/tests/run-show-ciefde.sh @@ -0,0 +1,319 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile3.bz2 > testfile3 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile4.bz2 > testfile4 2>/dev/null || exit 0 + +./show-ciefde testfile3 testfile4 > show-ciefde.out + +diff -u show-ciefde.out - <<"EOF" +testfile3 has 1 CIEs and 1 FDEs +CIE[0]: bytes_in_cie = 16, version = 1, augmenter = "" +CIE[0]: code_alignment_factor = 1 +CIE[0]: data_alignment_factor = fffffffffffffffc +CIE[0]: return_address_register = 8 +CIE[0]: bytes = 0c 04 04 88 01 00 00 +FDE[0]: low_pc = 0x804842c, length = 41 +FDE[0]: bytes = 18 00 00 00 18 00 00 00 2c 84 04 08 29 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[0]: cie_offset = 0, cie_index = 0, fde_offset = 24 +FDE[0]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +no FDE at 8048400 +FDE[@804842c]: cie_offset = 0, cie_index = 0, fde_offset = 24 +FDE[@8048454]: cie_offset = 0, cie_index = 0, fde_offset = 24 +no FDE at 8048455 +no FDE at 80493fc +testfile4 has 5 CIEs and 61 FDEs +CIE[0]: bytes_in_cie = 20, version = 1, augmenter = "eh" +CIE[0]: code_alignment_factor = 1 +CIE[0]: data_alignment_factor = fffffffffffffffc +CIE[0]: return_address_register = 8 +CIE[0]: bytes = 0c 04 04 88 01 +CIE[1]: bytes_in_cie = 16, version = 1, augmenter = "" +CIE[1]: code_alignment_factor = 1 +CIE[1]: data_alignment_factor = fffffffffffffffc +CIE[1]: return_address_register = 8 +CIE[1]: bytes = 0c 04 04 88 01 00 00 +CIE[2]: bytes_in_cie = 16, version = 1, augmenter = "" +CIE[2]: code_alignment_factor = 1 +CIE[2]: data_alignment_factor = fffffffffffffffc +CIE[2]: return_address_register = 8 +CIE[2]: bytes = 0c 04 04 88 01 00 00 +CIE[3]: bytes_in_cie = 20, version = 1, augmenter = "eh" +CIE[3]: code_alignment_factor = 1 +CIE[3]: data_alignment_factor = fffffffffffffffc +CIE[3]: return_address_register = 8 +CIE[3]: bytes = 0c 04 04 88 01 +CIE[4]: bytes_in_cie = 16, version = 1, augmenter = "" +CIE[4]: code_alignment_factor = 1 +CIE[4]: data_alignment_factor = fffffffffffffffc +CIE[4]: return_address_register = 8 +CIE[4]: bytes = 0c 04 04 88 01 00 00 +FDE[0]: low_pc = 0x80493fc, length = 154 +FDE[0]: bytes = 2c 00 00 00 1c 00 00 00 fc 93 04 08 9a 00 00 00 41 0e 08 85 02 42 0d 05 53 2e 08 50 2e 10 48 2e 00 58 2e 10 62 2e 00 63 2e 10 45 2e 00 00 00 00 +FDE[0]: cie_offset = 0, cie_index = 0, fde_offset = 28 +FDE[0]: instructions = 41 0e 08 85 02 42 0d 05 53 2e 08 50 2e 10 48 2e 00 58 2e 10 62 2e 00 63 2e 10 45 2e 00 00 00 00 +FDE[1]: low_pc = 0x8049498, length = 49 +FDE[1]: bytes = 18 00 00 00 4c 00 00 00 98 94 04 08 31 00 00 00 41 0e 08 85 02 42 0d 05 4c 2e 10 00 +FDE[1]: cie_offset = 0, cie_index = 0, fde_offset = 76 +FDE[1]: instructions = 41 0e 08 85 02 42 0d 05 4c 2e 10 00 +FDE[2]: low_pc = 0x80494d4, length = 23 +FDE[2]: bytes = 18 00 00 00 18 00 00 00 d4 94 04 08 17 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[2]: cie_offset = 100, cie_index = 1, fde_offset = 24 +FDE[2]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[3]: low_pc = 0x80494f0, length = 26 +FDE[3]: bytes = 18 00 00 00 34 00 00 00 f0 94 04 08 1a 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[3]: cie_offset = 100, cie_index = 1, fde_offset = 52 +FDE[3]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[4]: low_pc = 0x8049560, length = 85 +FDE[4]: bytes = 24 00 00 00 50 00 00 00 60 95 04 08 55 00 00 00 41 0e 08 85 02 42 0d 05 41 86 03 41 83 04 53 2e 10 4e 2e 00 55 2e 10 00 +FDE[4]: cie_offset = 100, cie_index = 1, fde_offset = 80 +FDE[4]: instructions = 41 0e 08 85 02 42 0d 05 41 86 03 41 83 04 53 2e 10 4e 2e 00 55 2e 10 00 +FDE[5]: low_pc = 0x80495c0, length = 66 +FDE[5]: bytes = 20 00 00 00 78 00 00 00 c0 95 04 08 42 00 00 00 41 0e 08 85 02 42 0d 05 41 86 03 41 83 04 5e 2e 10 00 00 00 +FDE[5]: cie_offset = 100, cie_index = 1, fde_offset = 120 +FDE[5]: instructions = 41 0e 08 85 02 42 0d 05 41 86 03 41 83 04 5e 2e 10 00 00 00 +FDE[6]: low_pc = 0x8049610, length = 28 +FDE[6]: bytes = 18 00 00 00 9c 00 00 00 10 96 04 08 1c 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[6]: cie_offset = 100, cie_index = 1, fde_offset = 156 +FDE[6]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[7]: low_pc = 0x8049630, length = 31 +FDE[7]: bytes = 18 00 00 00 b8 00 00 00 30 96 04 08 1f 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[7]: cie_offset = 100, cie_index = 1, fde_offset = 184 +FDE[7]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[8]: low_pc = 0x80496e0, length = 71 +FDE[8]: bytes = 1c 00 00 00 d4 00 00 00 e0 96 04 08 47 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 5c 2e 10 00 00 +FDE[8]: cie_offset = 100, cie_index = 1, fde_offset = 212 +FDE[8]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 5c 2e 10 00 00 +FDE[9]: low_pc = 0x8049730, length = 165 +FDE[9]: bytes = 20 00 00 00 f4 00 00 00 30 97 04 08 a5 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 69 2e 10 02 66 2e 00 00 00 +FDE[9]: cie_offset = 100, cie_index = 1, fde_offset = 244 +FDE[9]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 69 2e 10 02 66 2e 00 00 00 +FDE[10]: low_pc = 0x80497e0, length = 89 +FDE[10]: bytes = 1c 00 00 00 18 01 00 00 e0 97 04 08 59 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 74 2e 10 00 00 +FDE[10]: cie_offset = 100, cie_index = 1, fde_offset = 280 +FDE[10]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 74 2e 10 00 00 +FDE[11]: low_pc = 0x8049840, length = 89 +FDE[11]: bytes = 28 00 00 00 38 01 00 00 40 98 04 08 59 00 00 00 41 0e 08 85 02 42 0d 05 41 86 03 41 83 04 55 2e 10 4e 2e 00 52 2e 10 4c 2e 00 00 00 +FDE[11]: cie_offset = 100, cie_index = 1, fde_offset = 312 +FDE[11]: instructions = 41 0e 08 85 02 42 0d 05 41 86 03 41 83 04 55 2e 10 4e 2e 00 52 2e 10 4c 2e 00 00 00 +FDE[12]: low_pc = 0x80498a0, length = 176 +FDE[12]: bytes = 24 00 00 00 64 01 00 00 a0 98 04 08 b0 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 5e 2e 10 4c 2e 00 00 +FDE[12]: cie_offset = 100, cie_index = 1, fde_offset = 356 +FDE[12]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 5e 2e 10 4c 2e 00 00 +FDE[13]: low_pc = 0x8049950, length = 116 +FDE[13]: bytes = 24 00 00 00 8c 01 00 00 50 99 04 08 74 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 5e 2e 10 00 00 00 +FDE[13]: cie_offset = 100, cie_index = 1, fde_offset = 396 +FDE[13]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 5e 2e 10 00 00 00 +FDE[14]: low_pc = 0x80499d0, length = 31 +FDE[14]: bytes = 18 00 00 00 b4 01 00 00 d0 99 04 08 1f 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[14]: cie_offset = 100, cie_index = 1, fde_offset = 436 +FDE[14]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[15]: low_pc = 0x80499f0, length = 313 +FDE[15]: bytes = 24 00 00 00 d0 01 00 00 f0 99 04 08 39 01 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 d8 2e 10 62 2e 00 +FDE[15]: cie_offset = 100, cie_index = 1, fde_offset = 464 +FDE[15]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 d8 2e 10 62 2e 00 +FDE[16]: low_pc = 0x8049b30, length = 262 +FDE[16]: bytes = 24 00 00 00 f8 01 00 00 30 9b 04 08 06 01 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 c8 2e 10 62 2e 00 +FDE[16]: cie_offset = 100, cie_index = 1, fde_offset = 504 +FDE[16]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 c8 2e 10 62 2e 00 +FDE[17]: low_pc = 0x8049c40, length = 95 +FDE[17]: bytes = 1c 00 00 00 20 02 00 00 40 9c 04 08 5f 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 6e 2e 10 00 00 +FDE[17]: cie_offset = 100, cie_index = 1, fde_offset = 544 +FDE[17]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 6e 2e 10 00 00 +FDE[18]: low_pc = 0x8049d60, length = 230 +FDE[18]: bytes = 20 00 00 00 40 02 00 00 60 9d 04 08 e6 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 02 9a 2e 10 00 00 +FDE[18]: cie_offset = 100, cie_index = 1, fde_offset = 576 +FDE[18]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 02 9a 2e 10 00 00 +FDE[19]: low_pc = 0x8049e50, length = 85 +FDE[19]: bytes = 18 00 00 00 64 02 00 00 50 9e 04 08 55 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[19]: cie_offset = 100, cie_index = 1, fde_offset = 612 +FDE[19]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[20]: low_pc = 0x8049eb0, length = 144 +FDE[20]: bytes = 20 00 00 00 80 02 00 00 b0 9e 04 08 90 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 5b 2e 10 +FDE[20]: cie_offset = 100, cie_index = 1, fde_offset = 640 +FDE[20]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 5b 2e 10 +FDE[21]: low_pc = 0x8049f40, length = 115 +FDE[21]: bytes = 20 00 00 00 a4 02 00 00 40 9f 04 08 73 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 59 2e 10 +FDE[21]: cie_offset = 100, cie_index = 1, fde_offset = 676 +FDE[21]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 59 2e 10 +FDE[22]: low_pc = 0x8049fd0, length = 948 +FDE[22]: bytes = 30 00 00 00 c8 02 00 00 d0 9f 04 08 b4 03 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 f7 2e 20 02 64 2e 10 03 15 01 2e 00 02 9f 2e 10 00 00 +FDE[22]: cie_offset = 100, cie_index = 1, fde_offset = 712 +FDE[22]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 f7 2e 20 02 64 2e 10 03 15 01 2e 00 02 9f 2e 10 00 00 +FDE[23]: low_pc = 0x804a390, length = 201 +FDE[23]: bytes = 28 00 00 00 fc 02 00 00 90 a3 04 08 c9 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 58 2e 10 52 2e 00 75 2e 10 00 +FDE[23]: cie_offset = 100, cie_index = 1, fde_offset = 764 +FDE[23]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 58 2e 10 52 2e 00 75 2e 10 00 +FDE[24]: low_pc = 0x804a460, length = 206 +FDE[24]: bytes = 28 00 00 00 28 03 00 00 60 a4 04 08 ce 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 64 2e 10 52 2e 00 6e 2e 10 00 +FDE[24]: cie_offset = 100, cie_index = 1, fde_offset = 808 +FDE[24]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 64 2e 10 52 2e 00 6e 2e 10 00 +FDE[25]: low_pc = 0x804b970, length = 1274 +FDE[25]: bytes = 44 00 00 00 18 00 00 00 70 b9 04 08 fa 04 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 66 2e 10 7b 2e 20 03 7f 01 2e 10 53 2e 08 4c 2e 10 79 2e 20 02 54 2e 10 7e 2e 20 03 6c 01 2e 10 02 45 2e 20 00 00 00 +FDE[25]: cie_offset = 948, cie_index = 2, fde_offset = 24 +FDE[25]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 66 2e 10 7b 2e 20 03 7f 01 2e 10 53 2e 08 4c 2e 10 79 2e 20 02 54 2e 10 7e 2e 20 03 6c 01 2e 10 02 45 2e 20 00 00 00 +FDE[26]: low_pc = 0x804be70, length = 60 +FDE[26]: bytes = 1c 00 00 00 60 00 00 00 70 be 04 08 3c 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 5e 2e 10 00 00 +FDE[26]: cie_offset = 948, cie_index = 2, fde_offset = 96 +FDE[26]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 5e 2e 10 00 00 +FDE[27]: low_pc = 0x804c090, length = 85 +FDE[27]: bytes = 24 00 00 00 80 00 00 00 90 c0 04 08 55 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 66 2e 04 4d 2e 0c 4c 2e 04 46 2e 20 00 +FDE[27]: cie_offset = 948, cie_index = 2, fde_offset = 128 +FDE[27]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 66 2e 04 4d 2e 0c 4c 2e 04 46 2e 20 00 +FDE[28]: low_pc = 0x804c0f0, length = 75 +FDE[28]: bytes = 2c 00 00 00 a8 00 00 00 f0 c0 04 08 4b 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 5b 2e 04 4a 2e 0c 4d 2e 04 46 2e 20 00 00 00 +FDE[28]: cie_offset = 948, cie_index = 2, fde_offset = 168 +FDE[28]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 5b 2e 04 4a 2e 0c 4d 2e 04 46 2e 20 00 00 00 +FDE[29]: low_pc = 0x804d8e0, length = 71 +FDE[29]: bytes = 20 00 00 00 d8 00 00 00 e0 d8 04 08 47 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[29]: cie_offset = 948, cie_index = 2, fde_offset = 216 +FDE[29]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[30]: low_pc = 0x804d980, length = 71 +FDE[30]: bytes = 20 00 00 00 fc 00 00 00 80 d9 04 08 47 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[30]: cie_offset = 948, cie_index = 2, fde_offset = 252 +FDE[30]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[31]: low_pc = 0x804da20, length = 71 +FDE[31]: bytes = 20 00 00 00 20 01 00 00 20 da 04 08 47 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[31]: cie_offset = 948, cie_index = 2, fde_offset = 288 +FDE[31]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[32]: low_pc = 0x804dac0, length = 71 +FDE[32]: bytes = 20 00 00 00 44 01 00 00 c0 da 04 08 47 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[32]: cie_offset = 948, cie_index = 2, fde_offset = 324 +FDE[32]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[33]: low_pc = 0x804db60, length = 71 +FDE[33]: bytes = 20 00 00 00 68 01 00 00 60 db 04 08 47 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[33]: cie_offset = 948, cie_index = 2, fde_offset = 360 +FDE[33]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[34]: low_pc = 0x804dc00, length = 71 +FDE[34]: bytes = 20 00 00 00 8c 01 00 00 00 dc 04 08 47 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[34]: cie_offset = 948, cie_index = 2, fde_offset = 396 +FDE[34]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[35]: low_pc = 0x804dca0, length = 71 +FDE[35]: bytes = 20 00 00 00 b0 01 00 00 a0 dc 04 08 47 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[35]: cie_offset = 948, cie_index = 2, fde_offset = 432 +FDE[35]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 60 2e 10 +FDE[36]: low_pc = 0x804c5b4, length = 26 +FDE[36]: bytes = 18 00 00 00 1c 00 00 00 b4 c5 04 08 1a 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[36]: cie_offset = 1412, cie_index = 3, fde_offset = 28 +FDE[36]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[37]: low_pc = 0x804c5d0, length = 23 +FDE[37]: bytes = 18 00 00 00 38 00 00 00 d0 c5 04 08 17 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[37]: cie_offset = 1412, cie_index = 3, fde_offset = 56 +FDE[37]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[38]: low_pc = 0x804c640, length = 24 +FDE[38]: bytes = 18 00 00 00 54 00 00 00 40 c6 04 08 18 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[38]: cie_offset = 1412, cie_index = 3, fde_offset = 84 +FDE[38]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[39]: low_pc = 0x804c660, length = 32 +FDE[39]: bytes = 18 00 00 00 70 00 00 00 60 c6 04 08 20 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[39]: cie_offset = 1412, cie_index = 3, fde_offset = 112 +FDE[39]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[40]: low_pc = 0x804c680, length = 29 +FDE[40]: bytes = 18 00 00 00 8c 00 00 00 80 c6 04 08 1d 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[40]: cie_offset = 1412, cie_index = 3, fde_offset = 140 +FDE[40]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[41]: low_pc = 0x804c6a0, length = 36 +FDE[41]: bytes = 18 00 00 00 a8 00 00 00 a0 c6 04 08 24 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[41]: cie_offset = 1412, cie_index = 3, fde_offset = 168 +FDE[41]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[42]: low_pc = 0x804c6d0, length = 98 +FDE[42]: bytes = 24 00 00 00 c4 00 00 00 d0 c6 04 08 62 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 43 2e 10 00 00 00 +FDE[42]: cie_offset = 1412, cie_index = 3, fde_offset = 196 +FDE[42]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 43 2e 10 00 00 00 +FDE[43]: low_pc = 0x804c740, length = 107 +FDE[43]: bytes = 24 00 00 00 ec 00 00 00 40 c7 04 08 6b 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 53 2e 10 7b 2e 00 00 +FDE[43]: cie_offset = 1412, cie_index = 3, fde_offset = 236 +FDE[43]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 53 2e 10 7b 2e 00 00 +FDE[44]: low_pc = 0x804c7b0, length = 256 +FDE[44]: bytes = 24 00 00 00 14 01 00 00 b0 c7 04 08 00 01 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 bf 2e 10 00 00 00 +FDE[44]: cie_offset = 1412, cie_index = 3, fde_offset = 276 +FDE[44]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 02 bf 2e 10 00 00 00 +FDE[45]: low_pc = 0x804c8b0, length = 78 +FDE[45]: bytes = 1c 00 00 00 3c 01 00 00 b0 c8 04 08 4e 00 00 00 41 0e 08 85 02 42 0d 05 41 86 03 41 83 04 00 00 +FDE[45]: cie_offset = 1412, cie_index = 3, fde_offset = 316 +FDE[45]: instructions = 41 0e 08 85 02 42 0d 05 41 86 03 41 83 04 00 00 +FDE[46]: low_pc = 0x804c900, length = 480 +FDE[46]: bytes = 40 00 00 00 5c 01 00 00 00 c9 04 08 e0 01 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 7d 2e 10 4c 2e 00 02 48 2e 10 02 54 2e 00 78 2e 10 4c 2e 00 02 44 2e 10 79 2e 08 49 2e 10 48 2e 00 00 00 +FDE[46]: cie_offset = 1412, cie_index = 3, fde_offset = 348 +FDE[46]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 7d 2e 10 4c 2e 00 02 48 2e 10 02 54 2e 00 78 2e 10 4c 2e 00 02 44 2e 10 79 2e 08 49 2e 10 48 2e 00 00 00 +FDE[47]: low_pc = 0x804cae0, length = 37 +FDE[47]: bytes = 1c 00 00 00 a0 01 00 00 e0 ca 04 08 25 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 52 2e 10 00 00 +FDE[47]: cie_offset = 1412, cie_index = 3, fde_offset = 416 +FDE[47]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 52 2e 10 00 00 +FDE[48]: low_pc = 0x804cb10, length = 128 +FDE[48]: bytes = 2c 00 00 00 c0 01 00 00 10 cb 04 08 80 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 62 2e 10 56 2e 08 49 2e 10 48 2e 00 6c 2e 10 +FDE[48]: cie_offset = 1412, cie_index = 3, fde_offset = 448 +FDE[48]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 62 2e 10 56 2e 08 49 2e 10 48 2e 00 6c 2e 10 +FDE[49]: low_pc = 0x804cb90, length = 128 +FDE[49]: bytes = 2c 00 00 00 f0 01 00 00 90 cb 04 08 80 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 62 2e 10 56 2e 08 49 2e 10 48 2e 00 6c 2e 10 +FDE[49]: cie_offset = 1412, cie_index = 3, fde_offset = 496 +FDE[49]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 62 2e 10 56 2e 08 49 2e 10 48 2e 00 6c 2e 10 +FDE[50]: low_pc = 0x804cc10, length = 45 +FDE[50]: bytes = 18 00 00 00 20 02 00 00 10 cc 04 08 2d 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[50]: cie_offset = 1412, cie_index = 3, fde_offset = 544 +FDE[50]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[51]: low_pc = 0x804cc40, length = 43 +FDE[51]: bytes = 18 00 00 00 3c 02 00 00 40 cc 04 08 2b 00 00 00 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[51]: cie_offset = 1412, cie_index = 3, fde_offset = 572 +FDE[51]: instructions = 41 0e 08 85 02 42 0d 05 41 83 03 00 +FDE[52]: low_pc = 0x804cde0, length = 89 +FDE[52]: bytes = 20 00 00 00 18 00 00 00 e0 cd 04 08 59 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 6d 2e 20 00 00 00 +FDE[52]: cie_offset = 2008, cie_index = 4, fde_offset = 24 +FDE[52]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 6d 2e 20 00 00 00 +FDE[53]: low_pc = 0x804ce40, length = 217 +FDE[53]: bytes = 20 00 00 00 3c 00 00 00 40 ce 04 08 d9 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 02 40 2e 20 00 00 +FDE[53]: cie_offset = 2008, cie_index = 4, fde_offset = 60 +FDE[53]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 02 40 2e 20 00 00 +FDE[54]: low_pc = 0x804d010, length = 117 +FDE[54]: bytes = 24 00 00 00 60 00 00 00 10 d0 04 08 75 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 5c 2e 10 02 48 2e 20 +FDE[54]: cie_offset = 2008, cie_index = 4, fde_offset = 96 +FDE[54]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 5c 2e 10 02 48 2e 20 +FDE[55]: low_pc = 0x804d090, length = 190 +FDE[55]: bytes = 24 00 00 00 88 00 00 00 90 d0 04 08 be 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 64 2e 10 02 89 2e 20 +FDE[55]: cie_offset = 2008, cie_index = 4, fde_offset = 136 +FDE[55]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 64 2e 10 02 89 2e 20 +FDE[56]: low_pc = 0x804d150, length = 101 +FDE[56]: bytes = 24 00 00 00 b0 00 00 00 50 d1 04 08 65 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 61 2e 10 73 2e 20 00 +FDE[56]: cie_offset = 2008, cie_index = 4, fde_offset = 176 +FDE[56]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 61 2e 10 73 2e 20 00 +FDE[57]: low_pc = 0x804d1c0, length = 480 +FDE[57]: bytes = 28 00 00 00 d8 00 00 00 c0 d1 04 08 e0 01 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 56 2e 10 02 f5 2e 20 02 91 2e 10 +FDE[57]: cie_offset = 2008, cie_index = 4, fde_offset = 216 +FDE[57]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 56 2e 10 02 f5 2e 20 02 91 2e 10 +FDE[58]: low_pc = 0x804d3a0, length = 897 +FDE[58]: bytes = 28 00 00 00 04 01 00 00 a0 d3 04 08 81 03 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 61 2e 10 03 61 01 2e 20 00 00 00 +FDE[58]: cie_offset = 2008, cie_index = 4, fde_offset = 260 +FDE[58]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 61 2e 10 03 61 01 2e 20 00 00 00 +FDE[59]: low_pc = 0x804d730, length = 238 +FDE[59]: bytes = 24 00 00 00 30 01 00 00 30 d7 04 08 ee 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 61 2e 10 02 8f 2e 20 +FDE[59]: cie_offset = 2008, cie_index = 4, fde_offset = 304 +FDE[59]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 41 86 04 41 83 05 61 2e 10 02 8f 2e 20 +FDE[60]: low_pc = 0x804e220, length = 73 +FDE[60]: bytes = 20 00 00 00 58 01 00 00 20 e2 04 08 49 00 00 00 41 0e 08 85 02 42 0d 05 41 87 03 44 86 04 74 2e 20 00 00 00 +FDE[60]: cie_offset = 2008, cie_index = 4, fde_offset = 344 +FDE[60]: instructions = 41 0e 08 85 02 42 0d 05 41 87 03 44 86 04 74 2e 20 00 00 00 +no FDE at 8048400 +no FDE at 804842c +no FDE at 8048454 +no FDE at 8048455 +FDE[@80493fc]: cie_offset = 0, cie_index = 0, fde_offset = 28 +EOF + +rm -f testfile3 testfile4 show-ciefde.out + +exit 0 diff --git a/tests/run-show-die-info.sh b/tests/run-show-die-info.sh new file mode 100644 index 0000000..0426326 --- /dev/null +++ b/tests/run-show-die-info.sh @@ -0,0 +1,988 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002, 2003, 2004 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile5.bz2 > testfile5 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/testfile2.bz2 > testfile2 2>/dev/null || exit 0 + +./show-die-info testfile5 testfile2 > show-die-info.out + +diff -u show-die-info.out - <<"EOF" +file: testfile5 +New CU: off = 0, hsize = 11, ab = 0, as = 4, os = 4 + DW_TAG_compile_unit + Name : b.c + Offset : 11 + CU offset : 11 + Attrs : name stmt_list low_pc high_pc language comp_dir producer + low PC : 0x804842c + high PC : 0x8048436 + language : 1 + directory : /home/drepper/gnu/new-bu/build/ttt + producer : GNU C 2.96 20000731 (Red Hat Linux 7.0) + DW_TAG_subprogram + Name : bar + Offset : 104 + CU offset : 104 + Attrs : name low_pc high_pc prototyped decl_file decl_line external frame_base type + low PC : 0x804842c + high PC : 0x8048436 + DW_TAG_base_type + Name : int + Offset : 127 + CU offset : 127 + Attrs : name byte_size encoding + byte size : 4 +New CU: off = 135, hsize = 11, ab = 54, as = 4, os = 4 + DW_TAG_compile_unit + Name : f.c + Offset : 146 + CU offset : 11 + Attrs : name stmt_list low_pc high_pc language comp_dir producer + low PC : 0x8048438 + high PC : 0x8048442 + language : 1 + directory : /home/drepper/gnu/new-bu/build/ttt + producer : GNU C 2.96 20000731 (Red Hat Linux 7.0) + DW_TAG_subprogram + Name : foo + Offset : 239 + CU offset : 104 + Attrs : name low_pc high_pc prototyped decl_file decl_line external frame_base type + low PC : 0x8048438 + high PC : 0x8048442 + DW_TAG_base_type + Name : int + Offset : 262 + CU offset : 127 + Attrs : name byte_size encoding + byte size : 4 +New CU: off = 270, hsize = 11, ab = 108, as = 4, os = 4 + DW_TAG_compile_unit + Name : m.c + Offset : 281 + CU offset : 11 + Attrs : name stmt_list low_pc high_pc language comp_dir producer + low PC : 0x8048444 + high PC : 0x8048472 + language : 1 + directory : /home/drepper/gnu/new-bu/build/ttt + producer : GNU C 2.96 20000731 (Red Hat Linux 7.0) + DW_TAG_subprogram + Name : main + Offset : 374 + CU offset : 104 + Attrs : sibling name low_pc high_pc prototyped decl_file decl_line external frame_base type + low PC : 0x8048444 + high PC : 0x8048472 + DW_TAG_subprogram + Name : bar + Offset : 402 + CU offset : 132 + Attrs : sibling name decl_file decl_line declaration external type + DW_TAG_unspecified_parameters + Name : * NO NAME * + Offset : 419 + CU offset : 149 + Attrs : + DW_TAG_subprogram + Name : foo + Offset : 421 + CU offset : 151 + Attrs : name decl_file decl_line declaration external type + DW_TAG_unspecified_parameters + Name : * NO NAME * + Offset : 434 + CU offset : 164 + Attrs : + DW_TAG_base_type + Name : int + Offset : 437 + CU offset : 167 + Attrs : name byte_size encoding + byte size : 4 + DW_TAG_variable + Name : a + Offset : 444 + CU offset : 174 + Attrs : location name decl_file decl_line external type +file: testfile2 +New CU: off = 0, hsize = 11, ab = 0, as = 4, os = 4 + DW_TAG_compile_unit + Name : b.c + Offset : 11 + CU offset : 11 + Attrs : name stmt_list low_pc high_pc language comp_dir producer + low PC : 0x10000470 + high PC : 0x10000490 + language : 1 + directory : /shoggoth/drepper + producer : GNU C 2.96-laurel-000912 + DW_TAG_subprogram + Name : bar + Offset : 72 + CU offset : 72 + Attrs : name low_pc high_pc prototyped decl_file decl_line external frame_base type + low PC : 0x10000470 + high PC : 0x10000490 + DW_TAG_base_type + Name : int + Offset : 95 + CU offset : 95 + Attrs : name byte_size encoding + byte size : 4 + DW_TAG_typedef + Name : size_t + Offset : 102 + CU offset : 102 + Attrs : name decl_file decl_line type + DW_TAG_base_type + Name : unsigned int + Offset : 116 + CU offset : 116 + Attrs : name byte_size encoding + byte size : 4 + DW_TAG_typedef + Name : __gnuc_va_list + Offset : 132 + CU offset : 132 + Attrs : name decl_file decl_line type + DW_TAG_array_type + Name : __builtin_va_list + Offset : 154 + CU offset : 154 + Attrs : sibling name type + DW_TAG_subrange_type + Name : * NO NAME * + Offset : 181 + CU offset : 181 + Attrs : upper_bound type + DW_TAG_base_type + Name : unsigned int + Offset : 188 + CU offset : 188 + Attrs : name byte_size encoding + byte size : 4 + DW_TAG_structure_type + Name : __va_list_tag + Offset : 204 + CU offset : 204 + Attrs : sibling name byte_size decl_file decl_line + byte size : 12 + DW_TAG_member + Name : gpr + Offset : 226 + CU offset : 226 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : fpr + Offset : 240 + CU offset : 240 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : overflow_arg_area + Offset : 254 + CU offset : 254 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : reg_save_area + Offset : 282 + CU offset : 282 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_base_type + Name : unsigned char + Offset : 307 + CU offset : 307 + Attrs : name byte_size encoding + byte size : 1 + DW_TAG_pointer_type + Name : * NO NAME * + Offset : 324 + CU offset : 324 + Attrs : byte_size + byte size : 4 + DW_TAG_typedef + Name : __u_char + Offset : 326 + CU offset : 326 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __u_short + Offset : 342 + CU offset : 342 + Attrs : name decl_file decl_line type + DW_TAG_base_type + Name : short unsigned int + Offset : 359 + CU offset : 359 + Attrs : name byte_size encoding + byte size : 2 + DW_TAG_typedef + Name : __u_int + Offset : 381 + CU offset : 381 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __u_long + Offset : 396 + CU offset : 396 + Attrs : name decl_file decl_line type + DW_TAG_base_type + Name : long unsigned int + Offset : 412 + CU offset : 412 + Attrs : name byte_size encoding + byte size : 4 + DW_TAG_typedef + Name : __u_quad_t + Offset : 433 + CU offset : 433 + Attrs : name decl_file decl_line type + DW_TAG_base_type + Name : long long unsigned int + Offset : 451 + CU offset : 451 + Attrs : name byte_size encoding + byte size : 8 + DW_TAG_typedef + Name : __quad_t + Offset : 477 + CU offset : 477 + Attrs : name decl_file decl_line type + DW_TAG_base_type + Name : long long int + Offset : 493 + CU offset : 493 + Attrs : name byte_size encoding + byte size : 8 + DW_TAG_typedef + Name : __int8_t + Offset : 510 + CU offset : 510 + Attrs : name decl_file decl_line type + DW_TAG_base_type + Name : signed char + Offset : 526 + CU offset : 526 + Attrs : name byte_size encoding + byte size : 1 + DW_TAG_typedef + Name : __uint8_t + Offset : 541 + CU offset : 541 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __int16_t + Offset : 558 + CU offset : 558 + Attrs : name decl_file decl_line type + DW_TAG_base_type + Name : short int + Offset : 575 + CU offset : 575 + Attrs : name byte_size encoding + byte size : 2 + DW_TAG_typedef + Name : __uint16_t + Offset : 588 + CU offset : 588 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __int32_t + Offset : 606 + CU offset : 606 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __uint32_t + Offset : 623 + CU offset : 623 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __int64_t + Offset : 641 + CU offset : 641 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __uint64_t + Offset : 658 + CU offset : 658 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __qaddr_t + Offset : 676 + CU offset : 676 + Attrs : name decl_file decl_line type + DW_TAG_pointer_type + Name : * NO NAME * + Offset : 693 + CU offset : 693 + Attrs : byte_size type + byte size : 4 + DW_TAG_typedef + Name : __dev_t + Offset : 699 + CU offset : 699 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __uid_t + Offset : 714 + CU offset : 714 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __gid_t + Offset : 729 + CU offset : 729 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __ino_t + Offset : 744 + CU offset : 744 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __mode_t + Offset : 759 + CU offset : 759 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __nlink_t + Offset : 775 + CU offset : 775 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __off_t + Offset : 792 + CU offset : 792 + Attrs : name decl_file decl_line type + DW_TAG_base_type + Name : long int + Offset : 807 + CU offset : 807 + Attrs : name byte_size encoding + byte size : 4 + DW_TAG_typedef + Name : __loff_t + Offset : 819 + CU offset : 819 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __pid_t + Offset : 835 + CU offset : 835 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __ssize_t + Offset : 850 + CU offset : 850 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __rlim_t + Offset : 867 + CU offset : 867 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __rlim64_t + Offset : 883 + CU offset : 883 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __id_t + Offset : 901 + CU offset : 901 + Attrs : name decl_file decl_line type + DW_TAG_structure_type + Name : * NO NAME * + Offset : 915 + CU offset : 915 + Attrs : sibling byte_size decl_file decl_line + byte size : 8 + DW_TAG_member + Name : __val + Offset : 923 + CU offset : 923 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_array_type + Name : * NO NAME * + Offset : 940 + CU offset : 940 + Attrs : sibling type + DW_TAG_subrange_type + Name : * NO NAME * + Offset : 949 + CU offset : 949 + Attrs : upper_bound type + DW_TAG_typedef + Name : __fsid_t + Offset : 956 + CU offset : 956 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __daddr_t + Offset : 972 + CU offset : 972 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __caddr_t + Offset : 989 + CU offset : 989 + Attrs : name decl_file decl_line type + DW_TAG_pointer_type + Name : * NO NAME * + Offset : 1006 + CU offset : 1006 + Attrs : byte_size type + byte size : 4 + DW_TAG_base_type + Name : char + Offset : 1012 + CU offset : 1012 + Attrs : name byte_size encoding + byte size : 1 + DW_TAG_typedef + Name : __time_t + Offset : 1020 + CU offset : 1020 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __swblk_t + Offset : 1036 + CU offset : 1036 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __clock_t + Offset : 1053 + CU offset : 1053 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __fd_mask + Offset : 1070 + CU offset : 1070 + Attrs : name decl_file decl_line type + DW_TAG_structure_type + Name : * NO NAME * + Offset : 1087 + CU offset : 1087 + Attrs : sibling byte_size decl_file decl_line + byte size : 128 + DW_TAG_member + Name : __fds_bits + Offset : 1095 + CU offset : 1095 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_array_type + Name : * NO NAME * + Offset : 1117 + CU offset : 1117 + Attrs : sibling type + DW_TAG_subrange_type + Name : * NO NAME * + Offset : 1126 + CU offset : 1126 + Attrs : upper_bound type + DW_TAG_typedef + Name : __fd_set + Offset : 1133 + CU offset : 1133 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __key_t + Offset : 1149 + CU offset : 1149 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __ipc_pid_t + Offset : 1164 + CU offset : 1164 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __blkcnt_t + Offset : 1183 + CU offset : 1183 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __blkcnt64_t + Offset : 1201 + CU offset : 1201 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __fsblkcnt_t + Offset : 1221 + CU offset : 1221 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __fsblkcnt64_t + Offset : 1241 + CU offset : 1241 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __fsfilcnt_t + Offset : 1263 + CU offset : 1263 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __fsfilcnt64_t + Offset : 1283 + CU offset : 1283 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __ino64_t + Offset : 1305 + CU offset : 1305 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __off64_t + Offset : 1322 + CU offset : 1322 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __t_scalar_t + Offset : 1339 + CU offset : 1339 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __t_uscalar_t + Offset : 1359 + CU offset : 1359 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : __intptr_t + Offset : 1380 + CU offset : 1380 + Attrs : name decl_file decl_line type + DW_TAG_structure_type + Name : _IO_FILE + Offset : 1398 + CU offset : 1398 + Attrs : sibling name byte_size decl_file decl_line + byte size : 152 + DW_TAG_member + Name : _flags + Offset : 1415 + CU offset : 1415 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_read_ptr + Offset : 1432 + CU offset : 1432 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_read_end + Offset : 1455 + CU offset : 1455 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_read_base + Offset : 1478 + CU offset : 1478 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_write_base + Offset : 1502 + CU offset : 1502 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_write_ptr + Offset : 1527 + CU offset : 1527 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_write_end + Offset : 1551 + CU offset : 1551 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_buf_base + Offset : 1575 + CU offset : 1575 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_buf_end + Offset : 1598 + CU offset : 1598 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_save_base + Offset : 1620 + CU offset : 1620 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_backup_base + Offset : 1644 + CU offset : 1644 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _IO_save_end + Offset : 1670 + CU offset : 1670 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _markers + Offset : 1693 + CU offset : 1693 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _chain + Offset : 1712 + CU offset : 1712 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _fileno + Offset : 1729 + CU offset : 1729 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _blksize + Offset : 1747 + CU offset : 1747 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _old_offset + Offset : 1766 + CU offset : 1766 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _cur_column + Offset : 1788 + CU offset : 1788 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _vtable_offset + Offset : 1810 + CU offset : 1810 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _shortbuf + Offset : 1835 + CU offset : 1835 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _lock + Offset : 1855 + CU offset : 1855 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _offset + Offset : 1871 + CU offset : 1871 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _unused2 + Offset : 1889 + CU offset : 1889 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_structure_type + Name : _IO_marker + Offset : 1909 + CU offset : 1909 + Attrs : sibling name byte_size decl_file decl_line + byte size : 12 + DW_TAG_member + Name : _next + Offset : 1928 + CU offset : 1928 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _sbuf + Offset : 1944 + CU offset : 1944 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_member + Name : _pos + Offset : 1960 + CU offset : 1960 + Attrs : name data_member_location decl_file decl_line type + DW_TAG_pointer_type + Name : * NO NAME * + Offset : 1976 + CU offset : 1976 + Attrs : byte_size type + byte size : 4 + DW_TAG_pointer_type + Name : * NO NAME * + Offset : 1982 + CU offset : 1982 + Attrs : byte_size type + byte size : 4 + DW_TAG_array_type + Name : * NO NAME * + Offset : 1988 + CU offset : 1988 + Attrs : sibling type + DW_TAG_subrange_type + Name : * NO NAME * + Offset : 1997 + CU offset : 1997 + Attrs : upper_bound type + DW_TAG_pointer_type + Name : * NO NAME * + Offset : 2004 + CU offset : 2004 + Attrs : byte_size + byte size : 4 + DW_TAG_array_type + Name : * NO NAME * + Offset : 2006 + CU offset : 2006 + Attrs : sibling type + DW_TAG_subrange_type + Name : * NO NAME * + Offset : 2015 + CU offset : 2015 + Attrs : upper_bound type + DW_TAG_typedef + Name : FILE + Offset : 2022 + CU offset : 2022 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : wchar_t + Offset : 2034 + CU offset : 2034 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : wint_t + Offset : 2050 + CU offset : 2050 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : _G_int16_t + Offset : 2065 + CU offset : 2065 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : _G_int32_t + Offset : 2083 + CU offset : 2083 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : _G_uint16_t + Offset : 2101 + CU offset : 2101 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : _G_uint32_t + Offset : 2120 + CU offset : 2120 + Attrs : name decl_file decl_line type + DW_TAG_structure_type + Name : _IO_jump_t + Offset : 2139 + CU offset : 2139 + Attrs : name declaration + DW_TAG_typedef + Name : _IO_lock_t + Offset : 2152 + CU offset : 2152 + Attrs : name decl_file decl_line + DW_TAG_typedef + Name : _IO_FILE + Offset : 2166 + CU offset : 2166 + Attrs : name decl_file decl_line type + DW_TAG_structure_type + Name : _IO_FILE_plus + Offset : 2182 + CU offset : 2182 + Attrs : name declaration + DW_TAG_typedef + Name : __io_read_fn + Offset : 2198 + CU offset : 2198 + Attrs : name decl_file decl_line type + DW_TAG_subroutine_type + Name : * NO NAME * + Offset : 2219 + CU offset : 2219 + Attrs : sibling prototyped type + DW_TAG_formal_parameter + Name : * NO NAME * + Offset : 2229 + CU offset : 2229 + Attrs : type + DW_TAG_formal_parameter + Name : * NO NAME * + Offset : 2234 + CU offset : 2234 + Attrs : type + DW_TAG_formal_parameter + Name : * NO NAME * + Offset : 2239 + CU offset : 2239 + Attrs : type + DW_TAG_typedef + Name : __io_write_fn + Offset : 2245 + CU offset : 2245 + Attrs : name decl_file decl_line type + DW_TAG_subroutine_type + Name : * NO NAME * + Offset : 2267 + CU offset : 2267 + Attrs : sibling prototyped type + DW_TAG_formal_parameter + Name : * NO NAME * + Offset : 2277 + CU offset : 2277 + Attrs : type + DW_TAG_formal_parameter + Name : * NO NAME * + Offset : 2282 + CU offset : 2282 + Attrs : type + DW_TAG_formal_parameter + Name : * NO NAME * + Offset : 2287 + CU offset : 2287 + Attrs : type + DW_TAG_pointer_type + Name : * NO NAME * + Offset : 2293 + CU offset : 2293 + Attrs : byte_size type + byte size : 4 + DW_TAG_const_type + Name : * NO NAME * + Offset : 2299 + CU offset : 2299 + Attrs : type + DW_TAG_typedef + Name : __io_seek_fn + Offset : 2304 + CU offset : 2304 + Attrs : name decl_file decl_line type + DW_TAG_subroutine_type + Name : * NO NAME * + Offset : 2325 + CU offset : 2325 + Attrs : sibling prototyped type + DW_TAG_formal_parameter + Name : * NO NAME * + Offset : 2335 + CU offset : 2335 + Attrs : type + DW_TAG_formal_parameter + Name : * NO NAME * + Offset : 2340 + CU offset : 2340 + Attrs : type + DW_TAG_formal_parameter + Name : * NO NAME * + Offset : 2345 + CU offset : 2345 + Attrs : type + DW_TAG_typedef + Name : __io_close_fn + Offset : 2351 + CU offset : 2351 + Attrs : name decl_file decl_line type + DW_TAG_subroutine_type + Name : * NO NAME * + Offset : 2373 + CU offset : 2373 + Attrs : sibling prototyped type + DW_TAG_formal_parameter + Name : * NO NAME * + Offset : 2383 + CU offset : 2383 + Attrs : type + DW_TAG_typedef + Name : fpos_t + Offset : 2389 + CU offset : 2389 + Attrs : name decl_file decl_line type + DW_TAG_typedef + Name : off_t + Offset : 2403 + CU offset : 2403 + Attrs : name decl_file decl_line type +New CU: off = 2418, hsize = 11, ab = 213, as = 4, os = 4 + DW_TAG_compile_unit + Name : f.c + Offset : 2429 + CU offset : 11 + Attrs : name stmt_list low_pc high_pc language comp_dir producer + low PC : 0x10000490 + high PC : 0x100004b0 + language : 1 + directory : /shoggoth/drepper + producer : GNU C 2.96-laurel-000912 + DW_TAG_subprogram + Name : foo + Offset : 2490 + CU offset : 72 + Attrs : name low_pc high_pc prototyped decl_file decl_line external frame_base type + low PC : 0x10000490 + high PC : 0x100004b0 + DW_TAG_base_type + Name : int + Offset : 2513 + CU offset : 95 + Attrs : name byte_size encoding + byte size : 4 +New CU: off = 2521, hsize = 11, ab = 267, as = 4, os = 4 + DW_TAG_compile_unit + Name : m.c + Offset : 2532 + CU offset : 11 + Attrs : name stmt_list low_pc high_pc language comp_dir producer + low PC : 0x100004b0 + high PC : 0x10000514 + language : 1 + directory : /shoggoth/drepper + producer : GNU C 2.96-laurel-000912 + DW_TAG_subprogram + Name : main + Offset : 2593 + CU offset : 72 + Attrs : sibling name low_pc high_pc prototyped decl_file decl_line external frame_base type + low PC : 0x100004b0 + high PC : 0x10000514 + DW_TAG_subprogram + Name : bar + Offset : 2621 + CU offset : 100 + Attrs : sibling name decl_file decl_line declaration external type + DW_TAG_unspecified_parameters + Name : * NO NAME * + Offset : 2638 + CU offset : 117 + Attrs : + DW_TAG_subprogram + Name : foo + Offset : 2640 + CU offset : 119 + Attrs : name decl_file decl_line declaration external type + DW_TAG_unspecified_parameters + Name : * NO NAME * + Offset : 2653 + CU offset : 132 + Attrs : + DW_TAG_base_type + Name : int + Offset : 2656 + CU offset : 135 + Attrs : name byte_size encoding + byte size : 4 + DW_TAG_variable + Name : a + Offset : 2663 + CU offset : 142 + Attrs : location name decl_file decl_line external type +EOF + +rm -f testfile2 testfile5 show-die-info.out + +exit 0 diff --git a/tests/run-strip-test.sh b/tests/run-strip-test.sh new file mode 100644 index 0000000..526eb09 --- /dev/null +++ b/tests/run-strip-test.sh @@ -0,0 +1,51 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002, 2003, 2005 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. +set -e + +original=${original:-testfile11} +stripped=${stripped:-testfile7} +debugout=${debugfile:+-f testfile.debug.temp -F $debugfile} + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/$original.bz2 > $original 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +bunzip2 -c $srcdir/$stripped.bz2 > $stripped 2>/dev/null || exit 0 + +# Don't fail if we cannot decompress the file. +test -z "$debugfile" || +bunzip2 -c $srcdir/$debugfile.bz2 > $debugfile 2>/dev/null || exit 0 + +LD_LIBRARY_PATH=../libebl:../libelf${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH \ + ../src/strip -o testfile.temp $debugout $original + +cmp $stripped testfile.temp + +# Check elflint and the expected result. +LD_LIBRARY_PATH=../libebl:../libelf${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH \ + ../src/elflint -q testfile.temp + +test -z "$debugfile" || { +cmp $debugfile testfile.debug.temp + +# Check elflint and the expected result. +LD_LIBRARY_PATH=../libebl:../libelf${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH \ + ../src/elflint -q -d testfile.debug.temp + +rm -f "$debugfile" +} + +rm -f $original $stripped testfile.temp testfile.debug.temp + +exit 0 diff --git a/tests/run-strip-test2.sh b/tests/run-strip-test2.sh new file mode 100644 index 0000000..824361c --- /dev/null +++ b/tests/run-strip-test2.sh @@ -0,0 +1,17 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002, 2005 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. + +original=testfile8 +stripped=testfile9 +. $srcdir/run-strip-test.sh diff --git a/tests/run-strip-test3.sh b/tests/run-strip-test3.sh new file mode 100644 index 0000000..3e8ac87 --- /dev/null +++ b/tests/run-strip-test3.sh @@ -0,0 +1,17 @@ +#! /bin/sh +# Copyright (C) 1999, 2000, 2002, 2003, 2005 Red Hat, Inc. +# Written by Ulrich Drepper , 1999. +# +# This program is Open Source software; you can redistribute it and/or +# modify it under the terms of the Open Software License version 1.0 as +# published by the Open Source Initiative. +# +# You should have received a copy of the Open Software License along +# with this program; if not, you may obtain a copy of the Open Software +# License version 1.0 from http://www.opensource.org/licenses/osl.php or +# by writing the Open Source Initiative c/o Lawrence Rosen, Esq., +# 3001 King Ranch Road, Ukiah, CA 95482. + +original=testfile12 +stripped=testfile13 +. $srcdir/run-strip-test.sh diff --git a/tests/run-strip-test4.sh b/tests/run-strip-test4.sh new file mode 100644 index 0000000..8e9be22 --- /dev/null +++ b/tests/run-strip-test4.sh @@ -0,0 +1,5 @@ +original=testfile11 +stripped=testfile15 +debugfile=testfile15.debug + +. $srcdir/run-strip-test.sh diff --git a/tests/run-strip-test5.sh b/tests/run-strip-test5.sh new file mode 100644 index 0000000..9fa9ebe --- /dev/null +++ b/tests/run-strip-test5.sh @@ -0,0 +1,5 @@ +original=testfile8 +stripped=testfile16 +debugfile=testfile16.debug + +. $srcdir/run-strip-test.sh diff --git a/tests/run-strip-test6.sh b/tests/run-strip-test6.sh new file mode 100644 index 0000000..8ee5f02 --- /dev/null +++ b/tests/run-strip-test6.sh @@ -0,0 +1,5 @@ +original=testfile12 +stripped=testfile17 +debugfile=testfile17.debug + +. $srcdir/run-strip-test.sh diff --git a/tests/saridx.c b/tests/saridx.c new file mode 100644 index 0000000..4abc892 --- /dev/null +++ b/tests/saridx.c @@ -0,0 +1,253 @@ +/* Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + + +static const char *machines[] = +{ +#define MACHINE(name) [name] = #name + MACHINE (EM_NONE), + MACHINE (EM_M32), + MACHINE (EM_SPARC), + MACHINE (EM_386), + MACHINE (EM_68K), + MACHINE (EM_88K), + MACHINE (EM_860), + MACHINE (EM_MIPS), + MACHINE (EM_MIPS_RS3_LE), + MACHINE (EM_PARISC), + MACHINE (EM_VPP500), + MACHINE (EM_SPARC32PLUS), + MACHINE (EM_960), + MACHINE (EM_PPC), + MACHINE (EM_PPC64), + MACHINE (EM_V800), + MACHINE (EM_FR20), + MACHINE (EM_RH32), + MACHINE (EM_RCE), + MACHINE (EM_ARM), + MACHINE (EM_FAKE_ALPHA), + MACHINE (EM_SH), + MACHINE (EM_SPARCV9), + MACHINE (EM_TRICORE), + MACHINE (EM_ARC), + MACHINE (EM_H8_300), + MACHINE (EM_H8_300H), + MACHINE (EM_H8S), + MACHINE (EM_H8_500), + MACHINE (EM_IA_64), + MACHINE (EM_MIPS_X), + MACHINE (EM_COLDFIRE), + MACHINE (EM_68HC12), + MACHINE (EM_MMA), + MACHINE (EM_PCP), + MACHINE (EM_NCPU), + MACHINE (EM_NDR1), + MACHINE (EM_STARCORE), + MACHINE (EM_ME16), + MACHINE (EM_ST100), + MACHINE (EM_TINYJ), + MACHINE (EM_FX66), + MACHINE (EM_ST9PLUS), + MACHINE (EM_ST7), + MACHINE (EM_68HC16), + MACHINE (EM_68HC11), + MACHINE (EM_68HC08), + MACHINE (EM_68HC05), + MACHINE (EM_SVX), + MACHINE (EM_ST19), + MACHINE (EM_VAX) +}; + + +int +main (int argc, char *argv[]) +{ + int fd; + Elf *elf; + Elf_Cmd cmd; + size_t n; + int arg = 1; + int verbose = 0; + + /* Recognize optional verbosity flag. */ + if (arg < argc && strcmp (argv[arg], "-v") == 0) + { + verbose = 1; + ++arg; + } + + /* Any more arguments available. */ + if (arg >= argc) + error (EXIT_FAILURE, 0, "No input file given"); + + /* Open the input file. */ + fd = open (argv[arg], O_RDONLY); + if (fd == -1) + { + perror ("cannot open input file"); + exit (1); + } + + /* Set the ELF version we are using here. */ + if (elf_version (EV_CURRENT) == EV_NONE) + { + puts ("ELF library too old"); + exit (1); + } + + /* Start reading the file. */ + cmd = ELF_C_READ; + elf = elf_begin (fd, cmd, NULL); + if (elf == NULL) + { + printf ("elf_begin: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* If it is no archive punt. */ + if (elf_kind (elf) != ELF_K_AR) + { + printf ("%s is not an archive\n", argv[1]); + exit (1); + } + + if (verbose) + { + /* The verbose variant. We print a lot of information. */ + Elf *subelf; + char buf[100]; + time_t t; + + /* Get the elements of the archive one after the other. */ + while ((subelf = elf_begin (fd, cmd, elf)) != NULL) + { + /* The the header for this element. */ + Elf_Arhdr *arhdr = elf_getarhdr (subelf); + + if (arhdr == NULL) + { + printf ("cannot get arhdr: %s\n", elf_errmsg (-1)); + break; + } + + switch (elf_kind (subelf)) + { + case ELF_K_ELF: + fputs ("ELF file:\n", stdout); + break; + + case ELF_K_AR: + fputs ("archive:\n", stdout); + break; + + default: + fputs ("unknown file:\n", stdout); + break; + } + + /* Print general information. */ + t = arhdr->ar_date; + strftime (buf, sizeof buf, "%Y-%m-%dT%H:%M:%S%z", gmtime (&t)); + printf (" name : \"%s\"\n" + " time : %s\n" + " uid : %ld\n" + " gid : %ld\n" + " mode : %o\n" + " size : %ld\n" + " rawname : \"%s\"\n", + arhdr->ar_name, + buf, + (long int) arhdr->ar_uid, + (long int) arhdr->ar_gid, + arhdr->ar_mode, + (long int) arhdr->ar_size, + arhdr->ar_rawname); + + /* For ELF files we can provide some more information. */ + if (elf_kind (subelf) == ELF_K_ELF) + { + GElf_Ehdr ehdr; + + /* Get the ELF header. */ + if (gelf_getehdr (subelf, &ehdr) == NULL) + printf (" *** cannot get ELF header: %s\n", elf_errmsg (-1)); + else + { + printf (" binary class : %s\n", + ehdr.e_ident[EI_CLASS] == ELFCLASS32 + ? "ELFCLASS32" : "ELFCLASS64"); + printf (" data encoding: %s\n", + ehdr.e_ident[EI_DATA] == ELFDATA2LSB + ? "ELFDATA2LSB" : "ELFDATA2MSB"); + printf (" binary type : %s\n", + ehdr.e_type == ET_REL + ? "relocatable" + : (ehdr.e_type == ET_EXEC + ? "executable" + : (ehdr.e_type == ET_DYN + ? "dynamic" + : "core file"))); + printf (" machine : %s\n", + (ehdr.e_machine >= (sizeof (machines) + / sizeof (machines[0])) + || machines[ehdr.e_machine] == NULL) + ? "???" + : machines[ehdr.e_machine]); + } + } + + /* Get next archive element. */ + cmd = elf_next (subelf); + if (elf_end (subelf) != 0) + printf ("error while freeing sub-ELF descriptor: %s\n", + elf_errmsg (-1)); + } + } + else + { + /* The simple version. Only print a bit of information. */ + Elf_Arsym *arsym = elf_getarsym (elf, &n); + + if (n == 0) + printf ("no symbol table in archive: %s\n", elf_errmsg (-1)); + else + { + --n; + + while (n-- > 0) + printf ("name = \"%s\", offset = %ld, hash = %lx\n", + arsym[n].as_name, (long int) arsym[n].as_off, + arsym[n].as_hash); + } + } + + /* Free the ELF handle. */ + if (elf_end (elf) != 0) + printf ("error while freeing ELF descriptor: %s\n", elf_errmsg (-1)); + + /* Close the underlying file. */ + close (fd); + + return 0; +} diff --git a/tests/scnnames.c b/tests/scnnames.c new file mode 100644 index 0000000..14f428d --- /dev/null +++ b/tests/scnnames.c @@ -0,0 +1,87 @@ +/* Copyright (C) 1998, 1999, 2000, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +#include +#include +#include +#include +#include +#include + +int +main (int argc, char *argv[]) +{ + Elf *elf; + int fd; + GElf_Ehdr ehdr; + size_t strndx; + Elf_Scn *scn; + + if (argc < 2) + { + puts ("missing parameter"); + exit (1); + } + + fd = open (argv[1], O_RDONLY); + if (fd == -1) + { + printf ("cannot open \"%s\": %s\n", argv[1], strerror (errno)); + exit (1); + } + + elf_version (EV_CURRENT); + + elf = elf_begin (fd, ELF_C_READ, NULL); + if (elf == NULL) + { + printf ("cannot open ELF file: %s\n", elf_errmsg (-1)); + exit (1); + } + + if (elf_kind (elf) != ELF_K_ELF) + { + printf ("\"%s\" is not an ELF file\n", argv[1]); + exit (1); + } + + if (gelf_getehdr (elf, &ehdr) == NULL) + { + printf ("cannot get the ELF header: %s\n", elf_errmsg (-1)); + exit (1); + } + + strndx = ehdr.e_shstrndx; + + scn = NULL; + while ((scn = elf_nextscn (elf, scn)) != NULL) + { + char *name = NULL; + GElf_Shdr shdr; + + if (gelf_getshdr (scn, &shdr) != NULL) + name = elf_strptr (elf, strndx, (size_t) shdr.sh_name); + + printf ("section: `%s'\n", name); + } + + if (elf_end (elf) != 0) + { + printf ("error while freeing ELF descriptor: %s\n", elf_errmsg (-1)); + exit (1); + } + + return 0; +} diff --git a/tests/sectiondump.c b/tests/sectiondump.c new file mode 100644 index 0000000..f19a215 --- /dev/null +++ b/tests/sectiondump.c @@ -0,0 +1,178 @@ +/* Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + + +/* Prototypes for local functions. */ +static int handle_section (Elf *elf, Elf_Scn *scn); +static void print_bytes (Elf_Data *data); +static void print_symtab (Elf *elf, Elf_Data *data); + + +int +main (int argc, char *argv[]) +{ + Elf *elf; + int fd; + int cnt; + + if (argc <= 1) + exit (1); + + /* Open the test file. This is given as the first parameter to the + program. */ + fd = open (argv[1], O_RDONLY); + if (fd == -1) + error (EXIT_FAILURE, errno, "cannot open input file `%s'", argv[1]); + + /* Set the library versio we expect. */ + elf_version (EV_CURRENT); + + /* Create the ELF descriptor. */ + elf = elf_begin (fd, ELF_C_READ, NULL); + if (elf == NULL) + error (EXIT_FAILURE, 0, "cannot create ELF descriptor: %s", + elf_errmsg (0)); + + /* Now proces all the sections mentioned in the rest of the command line. */ + for (cnt = 2; cnt < argc; ++cnt) + if (handle_section (elf, elf_getscn (elf, atoi (argv[cnt]))) != 0) + /* When we encounter an error stop immediately. */ + error (EXIT_FAILURE, 0, "while processing section %d: %s", cnt, + elf_errmsg (0)); + + /* Close the descriptor. */ + if (elf_end (elf) != 0) + error (EXIT_FAILURE, 0, "failure while closing ELF descriptor: %s", + elf_errmsg (0)); + + return 0; +} + + +static int +handle_section (Elf *elf, Elf_Scn *scn) +{ + GElf_Ehdr *ehdr; + GElf_Ehdr ehdr_mem; + GElf_Shdr *shdr; + GElf_Shdr shdr_mem; + Elf_Data *data; + + /* First get the ELF and section header. */ + ehdr = gelf_getehdr (elf, &ehdr_mem); + shdr = gelf_getshdr (scn, &shdr_mem); + if (ehdr == NULL || shdr == NULL) + return 1; + + /* Print the information from the ELF section header. */ + printf ("name = %s\n" + "type = %" PRId32 "\n" + "flags = %" PRIx64 "\n" + "addr = %" PRIx64 "\n" + "offset = %" PRIx64 "\n" + "size = %" PRId64 "\n" + "link = %" PRId32 "\n" + "info = %" PRIx32 "\n" + "addralign = %" PRIx64 "\n" + "entsize = %" PRId64 "\n", + elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name), + shdr->sh_type, + shdr->sh_flags, + shdr->sh_addr, + shdr->sh_offset, + shdr->sh_size, + shdr->sh_link, + shdr->sh_info, + shdr->sh_addralign, + shdr->sh_entsize); + + /* Get the section data now. */ + data = elf_getdata (scn, NULL); + if (data == NULL) + return 1; + + /* Now proces the different section types accordingly. */ + switch (shdr->sh_type) + { + case SHT_SYMTAB: + print_symtab (elf, data); + break; + + case SHT_PROGBITS: + default: + print_bytes (data); + break; + } + + /* Separate form the next section. */ + puts (""); + + /* All done correctly. */ + return 0; +} + + +static void +print_bytes (Elf_Data *data) +{ + size_t size = data->d_size; + off_t offset = data->d_off; + unsigned char *buf = (unsigned char *) data->d_buf; + size_t cnt; + + for (cnt = 0; cnt < size; cnt += 16) + { + size_t inner; + + printf ("%*Zx: ", sizeof (size_t) == 4 ? 8 : 16, (size_t) offset + cnt); + + for (inner = 0; inner < 16 && cnt + inner < size; ++inner) + printf (" %02hhx", buf[cnt + inner]); + + puts (""); + } +} + + +static void +print_symtab (Elf *elf, Elf_Data *data) +{ + int class = gelf_getclass (elf); + size_t nsym = data->d_size / (class == ELFCLASS32 + ? sizeof (Elf32_Sym) : sizeof (Elf64_Sym)); + size_t cnt; + + for (cnt = 0; cnt < nsym; ++cnt) + { + GElf_Sym sym_mem; + GElf_Sym *sym = gelf_getsym (data, cnt, &sym_mem); + + printf ("%5Zu: %*" PRIx64 " %6" PRIx64 " %4d\n", + cnt, + class == ELFCLASS32 ? 8 : 16, + sym->st_value, + sym->st_size, + GELF_ST_TYPE (sym->st_info)); + } +} diff --git a/tests/show-abbrev.c b/tests/show-abbrev.c new file mode 100644 index 0000000..fba7375 --- /dev/null +++ b/tests/show-abbrev.c @@ -0,0 +1,127 @@ +/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +#include +#include +#include +#include +#include + + +int +main (int argc, char *argv[]) +{ + int cnt; + + for (cnt = 1; cnt < argc; ++cnt) + { + int fd = open (argv[cnt], O_RDONLY); + Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ); + if (dbg == NULL) + { + printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (-1)); + close (fd); + continue; + } + + Dwarf_Off cuoff = 0; + Dwarf_Off old_cuoff = 0; + size_t hsize; + while (dwarf_nextcu (dbg, cuoff, &cuoff, &hsize, NULL, NULL, NULL) == 0) + { + /* Get the DIE for the CU. */ + Dwarf_Die die; + if (dwarf_offdie (dbg, old_cuoff + hsize, &die) == NULL) + /* Something went wrong. */ + break; + + Dwarf_Off offset = 0; + + while (1) + { + size_t length; + Dwarf_Abbrev *abbrev = dwarf_getabbrev (&die, offset, &length); + if (abbrev == NULL || abbrev == DWARF_END_ABBREV) + /* End of the list. */ + break; + + unsigned tag = dwarf_getabbrevtag (abbrev); + if (tag == 0) + { + printf ("dwarf_getabbrevtag at offset %llu returned error: %s\n", + (unsigned long long int) offset, + dwarf_errmsg (-1)); + break; + } + + unsigned code = dwarf_getabbrevcode (abbrev); + if (code == 0) + { + printf ("dwarf_getabbrevcode at offset %llu returned error: %s\n", + (unsigned long long int) offset, + dwarf_errmsg (-1)); + break; + } + + int children = dwarf_abbrevhaschildren (abbrev); + if (children < 0) + { + printf ("dwarf_abbrevhaschildren at offset %llu returned error: %s\n", + (unsigned long long int) offset, + dwarf_errmsg (-1)); + break; + } + + printf ("abbrev[%llu]: code = %u, tag = %u, children = %d\n", + (unsigned long long int) offset, code, tag, children); + + size_t attrcnt; + if (dwarf_getattrcnt (abbrev, &attrcnt) != 0) + { + printf ("dwarf_getattrcnt at offset %llu returned error: %s\n", + (unsigned long long int) offset, + dwarf_errmsg (-1)); + break; + } + + unsigned int attr_num; + unsigned int attr_form; + Dwarf_Off aboffset; + size_t j; + for (j = 0; j < attrcnt; ++j) + if (dwarf_getabbrevattr (abbrev, j, &attr_num, &attr_form, + &aboffset)) + printf ("dwarf_getabbrevattr for abbrev[%llu] and index %zu failed\n", + (unsigned long long int) offset, j); + else + printf ("abbrev[%llu]: attr[%zu]: code = %u, form = %u, offset = %" PRIu64 "\n", + (unsigned long long int) offset, j, attr_num, + attr_form, (uint64_t) aboffset); + + offset += length; + } + + old_cuoff = cuoff; + } + + if (dwarf_end (dbg) != 0) + printf ("dwarf_end failed for %s: %s\n", argv[cnt], + dwarf_errmsg (-1)); + + close (fd); + } + + return 0; +} diff --git a/tests/show-ciefde.c b/tests/show-ciefde.c new file mode 100644 index 0000000..58eae34 --- /dev/null +++ b/tests/show-ciefde.c @@ -0,0 +1,218 @@ +/* Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +#include +#include +#include +#include +#include +#include + +int +main (int argc, char *argv[]) +{ + int cnt; + + for (cnt = 1; cnt < argc; ++cnt) + { + int fd = open (argv[cnt], O_RDONLY); + Dwarf_Debug dbg; + Dwarf_Signed cie_cnt; + Dwarf_Cie *cie_data; + Dwarf_Signed fde_cnt; + Dwarf_Fde *fde_data; + Dwarf_Error err; + + if (dwarf_init (fd, DW_DLC_READ, NULL, NULL, &dbg, &err) != DW_DLV_OK) + { + printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (err)); + continue; + } + else if (dwarf_get_fde_list_eh (dbg, &cie_data, &cie_cnt, &fde_data, + &fde_cnt, &err) != DW_DLV_OK) + printf ("cannot get CIEs and FDEs from %s: %s\n", argv[cnt], + dwarf_errmsg (err)); + else + { + Dwarf_Addr low_pc; + Dwarf_Addr high_pc; + Dwarf_Unsigned func_length; + Dwarf_Ptr fde_bytes; + Dwarf_Unsigned fde_byte_length; + Dwarf_Off cie_offset; + Dwarf_Signed cie_index; + Dwarf_Off fde_offset; + Dwarf_Fde fde; + int i; + + printf ("%s has %lld CIEs and %lld FDEs\n", + basename (argv[cnt]), + (long long int) cie_cnt, (long long int) fde_cnt); + + for (i = 0; i < cie_cnt; ++i) + { + Dwarf_Unsigned bytes_in_cie; + Dwarf_Small version; + char *augmenter; + Dwarf_Unsigned code_alignment_factor; + Dwarf_Signed data_alignment_factor; + Dwarf_Half return_address_register; + Dwarf_Ptr initial_instructions; + Dwarf_Unsigned initial_instructions_length; + + if (dwarf_get_cie_info (cie_data[i], &bytes_in_cie, &version, + &augmenter, &code_alignment_factor, + &data_alignment_factor, + &return_address_register, + &initial_instructions, + &initial_instructions_length, &err) + != DW_DLV_OK) + printf ("cannot get info for CIE %d: %s\n", i, + dwarf_errmsg (err)); + else + { + size_t j; + + printf ("CIE[%d]: bytes_in_cie = %llu, version = %hhd, augmenter = \"%s\"\n", + i, (unsigned long long int) bytes_in_cie, version, + augmenter); + printf ("CIE[%d]: code_alignment_factor = %llx\n" + "CIE[%d]: data_alignment_factor = %llx\n" + "CIE[%d]: return_address_register = %hu\n" + "CIE[%d]: bytes =", + i, (unsigned long long int) code_alignment_factor, + i, (unsigned long long int) data_alignment_factor, + i, return_address_register, i); + + for (j = 0; j < initial_instructions_length; ++j) + printf (" %02hhx", + ((unsigned char *) initial_instructions)[j]); + + putchar ('\n'); + } + } + + for (i = 0; i < fde_cnt; ++i) + { + Dwarf_Cie cie; + + if (dwarf_get_fde_range (fde_data[i], &low_pc, &func_length, + &fde_bytes, &fde_byte_length, + &cie_offset, &cie_index, &fde_offset, + &err) != DW_DLV_OK) + printf ("cannot get range of FDE %d: %s\n", i, + dwarf_errmsg (err)); + else + { + size_t j; + Dwarf_Ptr instrs; + Dwarf_Unsigned len; + + printf ("FDE[%d]: low_pc = %#llx, length = %llu\n", i, + (unsigned long long int) low_pc, + (unsigned long long int) func_length); + printf ("FDE[%d]: bytes =", i); + + for (j = 0; j < fde_byte_length; ++j) + printf (" %02hhx", ((unsigned char *) fde_bytes)[j]); + + printf ("\nFDE[%d]: cie_offset = %lld, cie_index = %lld, fde_offset = %lld\n", + i, (long long int) cie_offset, + (long long int) cie_index, + (long long int) fde_offset); + + if (dwarf_get_fde_instr_bytes (fde_data[i], &instrs, &len, + &err) != DW_DLV_OK) + printf ("cannot get instructions of FDE %d: %s\n", i, + dwarf_errmsg (err)); + else + { + printf ("FDE[%d]: instructions =", i); + + for (j = 0; j < len; ++j) + printf (" %02hhx", ((unsigned char *) instrs)[j]); + + putchar ('\n'); + } + + /* Consistency check. */ + if (dwarf_get_cie_of_fde (fde_data[i], &cie, &err) + != DW_DLV_OK) + printf ("cannot get CIE of FDE %d: %s\n", i, + dwarf_errmsg (err)); + else if (cie_data[cie_index] != cie) + puts ("cie_index for FDE[%d] does not match dwarf_get_cie_of_fde result"); + } + + if (dwarf_get_fde_n (fde_data, i, &fde, &err) != DW_DLV_OK) + printf ("dwarf_get_fde_n for FDE[%d] failed\n", i); + else if (fde != fde_data[i]) + printf ("dwarf_get_fde_n for FDE[%d] didn't return the right value\n", i); + } + + if (dwarf_get_fde_n (fde_data, fde_cnt, &fde, &err) + != DW_DLV_NO_ENTRY) + puts ("dwarf_get_fde_n for invalid index doesn't return DW_DLV_NO_ENTRY"); + + { + const unsigned int addrs[] = + { + 0x8048400, 0x804842c, 0x8048454, 0x8048455, 0x80493fc + }; + const int naddrs = sizeof (addrs) / sizeof (addrs[0]); + + for (i = 0; i < naddrs; ++i) + if (dwarf_get_fde_at_pc (fde_data, addrs[i], &fde, &low_pc, + &high_pc, &err) != DW_DLV_OK) + printf ("no FDE at %x\n", addrs[i]); + else + { + Dwarf_Addr other_low_pc; + + if (dwarf_get_fde_range (fde, &other_low_pc, &func_length, + &fde_bytes, &fde_byte_length, + &cie_offset, &cie_index, + &fde_offset, &err) != DW_DLV_OK) + printf ("cannot get range of FDE returned by dwarf_get_fde_at_pc for %u: %s\n", + addrs[i], dwarf_errmsg (err)); + else + { + printf ("FDE[@%x]: cie_offset = %lld, cie_index = %lld, fde_offset = %lld\n", + addrs[i], + (long long int) cie_offset, + (long long int) cie_index, + (long long int) fde_offset); + + if (low_pc != other_low_pc) + printf ("low_pc returned by dwarf_get_fde_at_pc for %x and dwarf_get_fde_range differs", + addrs[i]); + + if (high_pc != low_pc + func_length - 1) + printf ("high_pc returned by dwarf_get_fde_at_pc for %x and dwarf_get_fde_range differs", + addrs[i]); + } + } + } + } + + if (dwarf_finish (dbg, &err) != DW_DLV_OK) + printf ("dwarf_finish failed for %s: %s\n", argv[cnt], + dwarf_errmsg (err)); + + close (fd); + } + + return 0; +} diff --git a/tests/show-die-info.c b/tests/show-die-info.c new file mode 100644 index 0000000..d4f992f --- /dev/null +++ b/tests/show-die-info.c @@ -0,0 +1,475 @@ +/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + + +static const char *tagnames[] = +{ + [DW_TAG_array_type] = "DW_TAG_array_type", + [DW_TAG_class_type] = "DW_TAG_class_type", + [DW_TAG_entry_point] = "DW_TAG_entry_point", + [DW_TAG_enumeration_type] = "DW_TAG_enumeration_type", + [DW_TAG_formal_parameter] = "DW_TAG_formal_parameter", + [DW_TAG_imported_declaration] = "DW_TAG_imported_declaration", + [DW_TAG_label] = "DW_TAG_label", + [DW_TAG_lexical_block] = "DW_TAG_lexical_block", + [DW_TAG_member] = "DW_TAG_member", + [DW_TAG_pointer_type] = "DW_TAG_pointer_type", + [DW_TAG_reference_type] = "DW_TAG_reference_type", + [DW_TAG_compile_unit] = "DW_TAG_compile_unit", + [DW_TAG_string_type] = "DW_TAG_string_type", + [DW_TAG_structure_type] = "DW_TAG_structure_type", + [DW_TAG_subroutine_type] = "DW_TAG_subroutine_type", + [DW_TAG_typedef] = "DW_TAG_typedef", + [DW_TAG_union_type] = "DW_TAG_union_type", + [DW_TAG_unspecified_parameters] = "DW_TAG_unspecified_parameters", + [DW_TAG_variant] = "DW_TAG_variant", + [DW_TAG_common_block] = "DW_TAG_common_block", + [DW_TAG_common_inclusion] = "DW_TAG_common_inclusion", + [DW_TAG_inheritance] = "DW_TAG_inheritance", + [DW_TAG_inlined_subroutine] = "DW_TAG_inlined_subroutine", + [DW_TAG_module] = "DW_TAG_module", + [DW_TAG_ptr_to_member_type] = "DW_TAG_ptr_to_member_type", + [DW_TAG_set_type] = "DW_TAG_set_type", + [DW_TAG_subrange_type] = "DW_TAG_subrange_type", + [DW_TAG_with_stmt] = "DW_TAG_with_stmt", + [DW_TAG_access_declaration] = "DW_TAG_access_declaration", + [DW_TAG_base_type] = "DW_TAG_base_type", + [DW_TAG_catch_block] = "DW_TAG_catch_block", + [DW_TAG_const_type] = "DW_TAG_const_type", + [DW_TAG_constant] = "DW_TAG_constant", + [DW_TAG_enumerator] = "DW_TAG_enumerator", + [DW_TAG_file_type] = "DW_TAG_file_type", + [DW_TAG_friend] = "DW_TAG_friend", + [DW_TAG_namelist] = "DW_TAG_namelist", + [DW_TAG_namelist_item] = "DW_TAG_namelist_item", + [DW_TAG_packed_type] = "DW_TAG_packed_type", + [DW_TAG_subprogram] = "DW_TAG_subprogram", + [DW_TAG_template_type_param] = "DW_TAG_template_type_param", + [DW_TAG_template_value_param] = "DW_TAG_template_value_param", + [DW_TAG_thrown_type] = "DW_TAG_thrown_type", + [DW_TAG_try_block] = "DW_TAG_try_block", + [DW_TAG_variant_part] = "DW_TAG_variant_part", + [DW_TAG_variable] = "DW_TAG_variable", + [DW_TAG_volatile_type] = "DW_TAG_volatile_type" +}; +#define ntagnames (sizeof (tagnames) / sizeof (tagnames[0])) + + +const struct +{ + int code; + const char *name; +} attrs[] = +{ + { DW_AT_sibling, "sibling" }, + { DW_AT_location, "location" }, + { DW_AT_name, "name" }, + { DW_AT_ordering, "ordering" }, + { DW_AT_subscr_data, "subscr_data" }, + { DW_AT_byte_size, "byte_size" }, + { DW_AT_bit_offset, "bit_offset" }, + { DW_AT_bit_size, "bit_size" }, + { DW_AT_element_list, "element_list" }, + { DW_AT_stmt_list, "stmt_list" }, + { DW_AT_low_pc, "low_pc" }, + { DW_AT_high_pc, "high_pc" }, + { DW_AT_language, "language" }, + { DW_AT_member, "member" }, + { DW_AT_discr, "discr" }, + { DW_AT_discr_value, "discr_value" }, + { DW_AT_visibility, "visibility" }, + { DW_AT_import, "import" }, + { DW_AT_string_length, "string_length" }, + { DW_AT_common_reference, "common_reference" }, + { DW_AT_comp_dir, "comp_dir" }, + { DW_AT_const_value, "const_value" }, + { DW_AT_containing_type, "containing_type" }, + { DW_AT_default_value, "default_value" }, + { DW_AT_inline, "inline" }, + { DW_AT_is_optional, "is_optional" }, + { DW_AT_lower_bound, "lower_bound" }, + { DW_AT_producer, "producer" }, + { DW_AT_prototyped, "prototyped" }, + { DW_AT_return_addr, "return_addr" }, + { DW_AT_start_scope, "start_scope" }, + { DW_AT_stride_size, "stride_size" }, + { DW_AT_upper_bound, "upper_bound" }, + { DW_AT_abstract_origin, "abstract_origin" }, + { DW_AT_accessibility, "accessibility" }, + { DW_AT_address_class, "address_class" }, + { DW_AT_artificial, "artificial" }, + { DW_AT_base_types, "base_types" }, + { DW_AT_calling_convention, "calling_convention" }, + { DW_AT_count, "count" }, + { DW_AT_data_member_location, "data_member_location" }, + { DW_AT_decl_column, "decl_column" }, + { DW_AT_decl_file, "decl_file" }, + { DW_AT_decl_line, "decl_line" }, + { DW_AT_declaration, "declaration" }, + { DW_AT_discr_list, "discr_list" }, + { DW_AT_encoding, "encoding" }, + { DW_AT_external, "external" }, + { DW_AT_frame_base, "frame_base" }, + { DW_AT_friend, "friend" }, + { DW_AT_identifier_case, "identifier_case" }, + { DW_AT_macro_info, "macro_info" }, + { DW_AT_namelist_items, "namelist_items" }, + { DW_AT_priority, "priority" }, + { DW_AT_segment, "segment" }, + { DW_AT_specification, "specification" }, + { DW_AT_static_link, "static_link" }, + { DW_AT_type, "type" }, + { DW_AT_use_location, "use_location" }, + { DW_AT_variable_parameter, "variable_parameter" }, + { DW_AT_virtuality, "virtuality" }, + { DW_AT_vtable_elem_location, "vtable_elem_location" }, + { DW_AT_MIPS_fde, "MIPS_fde" }, + { DW_AT_MIPS_loop_begin, "MIPS_loop_begin" }, + { DW_AT_MIPS_tail_loop_begin, "MIPS_tail_loop_begin" }, + { DW_AT_MIPS_epilog_begin, "MIPS_epilog_begin" }, + { DW_AT_MIPS_loop_unroll_factor, "MIPS_loop_unroll_factor" }, + { DW_AT_MIPS_software_pipeline_depth, "MIPS_software_pipeline_depth" }, + { DW_AT_MIPS_linkage_name, "MIPS_linkage_name" }, + { DW_AT_MIPS_stride, "MIPS_stride" }, + { DW_AT_MIPS_abstract_name, "MIPS_abstract_name" }, + { DW_AT_MIPS_clone_origin, "MIPS_clone_origin" }, + { DW_AT_MIPS_has_inlines, "MIPS_has_inlines" }, + { DW_AT_MIPS_stride_byte, "MIPS_stride_byte" }, + { DW_AT_MIPS_stride_elem, "MIPS_stride_elem" }, + { DW_AT_MIPS_ptr_dopetype, "MIPS_ptr_dopetype" }, + { DW_AT_MIPS_allocatable_dopetype, "MIPS_allocatable_dopetype" }, + { DW_AT_MIPS_assumed_shape_dopetype, "MIPS_assumed_shape_dopetype" }, + { DW_AT_MIPS_assumed_size, "MIPS_assumed_size" }, + { DW_AT_sf_names, "sf_names" }, + { DW_AT_src_info, "src_info" }, + { DW_AT_mac_info, "mac_info" }, + { DW_AT_src_coords, "src_coords" }, + { DW_AT_body_begin, "body_begin" }, + { DW_AT_body_end, "body_end" } +}; +#define nattrs (sizeof (attrs) / sizeof (attrs[0])) + + +void +handle (Dwarf *dbg, Dwarf_Die *die, int n) +{ + Dwarf_Die child; + unsigned int tag; + const char *str; + char buf[30]; + const char *name; + Dwarf_Off off; + Dwarf_Off cuoff; + size_t cnt; + Dwarf_Addr addr; + int i; + + tag = dwarf_tag (die); + if (tag != DW_TAG_invalid) + { + if (tag < ntagnames) + str = tagnames[tag]; + else + { + snprintf (buf, sizeof buf, "%#x", tag); + str = buf; + } + } + else + str = "* NO TAG *"; + + name = dwarf_diename (die); + if (name == 0) + name = "* NO NAME *"; + + off = dwarf_dieoffset (die); + cuoff = dwarf_cuoffset (die); + + printf ("%*s%s\n", n * 5, "", str); + printf ("%*s Name : %s\n", n * 5, "", name); + printf ("%*s Offset : %lld\n", n * 5, "", (long long int) off); + printf ("%*s CU offset : %lld\n", n * 5, "", (long long int) cuoff); + + printf ("%*s Attrs :", n * 5, ""); + for (cnt = 0; cnt < nattrs; ++cnt) + if (dwarf_hasattr (die, attrs[cnt].code)) + printf (" %s", attrs[cnt].name); + puts (""); + + if (dwarf_hasattr (die, DW_AT_low_pc) && dwarf_lowpc (die, &addr) == 0) + { + Dwarf_Attribute attr; + Dwarf_Addr addr2; + printf ("%*s low PC : %#llx\n", + n * 5, "", (unsigned long long int) addr); + + if (dwarf_attr (die, DW_AT_low_pc, &attr) == NULL + || dwarf_formaddr (&attr, &addr2) != 0 + || addr != addr2) + puts ("************* DW_AT_low_pc verify failed ************"); + else if (! dwarf_hasform (&attr, DW_FORM_addr)) + puts ("************* DW_AT_low_pc form failed ************"); + else if (dwarf_whatform (&attr) != DW_FORM_addr) + puts ("************* DW_AT_low_pc form (2) failed ************"); + else if (dwarf_whatattr (&attr) != DW_AT_low_pc) + puts ("************* DW_AT_low_pc attr failed ************"); + } + if (dwarf_hasattr (die, DW_AT_high_pc) && dwarf_highpc (die, &addr) == 0) + { + Dwarf_Attribute attr; + Dwarf_Addr addr2; + printf ("%*s high PC : %#llx\n", + n * 5, "", (unsigned long long int) addr); + if (dwarf_attr (die, DW_AT_high_pc, &attr) == NULL + || dwarf_formaddr (&attr, &addr2) != 0 + || addr != addr2) + puts ("************* DW_AT_high_pc verify failed ************"); + else if (! dwarf_hasform (&attr, DW_FORM_addr)) + puts ("************* DW_AT_high_pc form failed ************"); + else if (dwarf_whatform (&attr) != DW_FORM_addr) + puts ("************* DW_AT_high_pc form (2) failed ************"); + else if (dwarf_whatattr (&attr) != DW_AT_high_pc) + puts ("************* DW_AT_high_pc attr failed ************"); + } + + if (dwarf_hasattr (die, DW_AT_byte_size) && (i = dwarf_bytesize (die)) != -1) + { + Dwarf_Attribute attr; + Dwarf_Word u2; + unsigned int u; + printf ("%*s byte size : %d\n", n * 5, "", i); + if (dwarf_attr (die, DW_AT_byte_size, &attr) == NULL + || dwarf_formudata (&attr, &u2) != 0 + || i != (int) u2) + puts ("************* DW_AT_byte_size verify failed ************"); + else if (! dwarf_hasform (&attr, DW_FORM_data1) + && ! dwarf_hasform (&attr, DW_FORM_data2) + && ! dwarf_hasform (&attr, DW_FORM_data4) + && ! dwarf_hasform (&attr, DW_FORM_data8) + && ! dwarf_hasform (&attr, DW_FORM_sdata) + && ! dwarf_hasform (&attr, DW_FORM_udata)) + puts ("************* DW_AT_byte_size form failed ************"); + else if ((u = dwarf_whatform (&attr)) == 0 + || (u != DW_FORM_data1 + && u != DW_FORM_data2 + && u != DW_FORM_data4 + && u != DW_FORM_data8 + && u != DW_FORM_sdata + && u != DW_FORM_udata)) + puts ("************* DW_AT_byte_size form (2) failed ************"); + else if (dwarf_whatattr (&attr) != DW_AT_byte_size) + puts ("************* DW_AT_byte_size attr failed ************"); + } + if (dwarf_hasattr (die, DW_AT_bit_size) && (i = dwarf_bitsize (die)) != -1) + { + Dwarf_Attribute attr; + Dwarf_Word u2; + unsigned int u; + printf ("%*s bit size : %d\n", n * 5, "", i); + if (dwarf_attr (die, DW_AT_bit_size, &attr) == NULL + || dwarf_formudata (&attr, &u2) != 0 + || i != (int) u2) + puts ("************* DW_AT_bit_size test failed ************"); + else if (! dwarf_hasform (&attr, DW_FORM_data1) + && ! dwarf_hasform (&attr, DW_FORM_data2) + && ! dwarf_hasform (&attr, DW_FORM_data4) + && ! dwarf_hasform (&attr, DW_FORM_data8) + && ! dwarf_hasform (&attr, DW_FORM_sdata) + && ! dwarf_hasform (&attr, DW_FORM_udata)) + puts ("************* DW_AT_bit_size form failed ************"); + else if ((u = dwarf_whatform (&attr)) == 0 + || (u != DW_FORM_data1 + && u != DW_FORM_data2 + && u != DW_FORM_data4 + && u != DW_FORM_data8 + && u != DW_FORM_sdata + && u != DW_FORM_udata)) + puts ("************* DW_AT_bit_size form (2) failed ************"); + else if (dwarf_whatattr (&attr) != DW_AT_bit_size) + puts ("************* DW_AT_bit_size attr failed ************"); + } + if (dwarf_hasattr (die, DW_AT_bit_offset) + && (i = dwarf_bitoffset (die)) != -1) + { + Dwarf_Attribute attr; + Dwarf_Word u2; + unsigned int u; + printf ("%*s bit offset: %d\n", n * 5, "", i); + if (dwarf_attr (die, DW_AT_bit_offset, &attr) == NULL + || dwarf_formudata (&attr, &u2) != 0 + || i != (int) u2) + puts ("************* DW_AT_bit_offset test failed ************"); + else if (! dwarf_hasform (&attr, DW_FORM_data1) + && ! dwarf_hasform (&attr, DW_FORM_data2) + && ! dwarf_hasform (&attr, DW_FORM_data4) + && ! dwarf_hasform (&attr, DW_FORM_data8) + && ! dwarf_hasform (&attr, DW_FORM_sdata) + && ! dwarf_hasform (&attr, DW_FORM_udata)) + puts ("************* DW_AT_bit_offset form failed ************"); + else if ((u = dwarf_whatform (&attr)) == 0 + || (u != DW_FORM_data1 + && u != DW_FORM_data2 + && u != DW_FORM_data4 + && u != DW_FORM_data8 + && u != DW_FORM_sdata + && u != DW_FORM_udata)) + puts ("************* DW_AT_bit_offset form (2) failed ************"); + else if (dwarf_whatattr (&attr) != DW_AT_bit_offset) + puts ("************* DW_AT_bit_offset attr failed ************"); + } + + if (dwarf_hasattr (die, DW_AT_language) && (i = dwarf_srclang (die)) != -1) + { + Dwarf_Attribute attr; + Dwarf_Word u2; + unsigned int u; + printf ("%*s language : %d\n", n * 5, "", i); + if (dwarf_attr (die, DW_AT_language, &attr) == NULL + || dwarf_formudata (&attr, &u2) != 0 + || i != (int) u2) + puts ("************* DW_AT_language test failed ************"); + else if (! dwarf_hasform (&attr, DW_FORM_data1) + && ! dwarf_hasform (&attr, DW_FORM_data2) + && ! dwarf_hasform (&attr, DW_FORM_data4) + && ! dwarf_hasform (&attr, DW_FORM_data8) + && ! dwarf_hasform (&attr, DW_FORM_sdata) + && ! dwarf_hasform (&attr, DW_FORM_udata)) + puts ("************* DW_AT_language form failed ************"); + else if ((u = dwarf_whatform (&attr)) == 0 + || (u != DW_FORM_data1 + && u != DW_FORM_data2 + && u != DW_FORM_data4 + && u != DW_FORM_data8 + && u != DW_FORM_sdata + && u != DW_FORM_udata)) + puts ("************* DW_AT_language form (2) failed ************"); + else if (dwarf_whatattr (&attr) != DW_AT_language) + puts ("************* DW_AT_language attr failed ************"); + } + + if (dwarf_hasattr (die, DW_AT_ordering) + && (i = dwarf_arrayorder (die)) != -1) + { + Dwarf_Attribute attr; + Dwarf_Word u2; + unsigned int u; + printf ("%*s ordering : %d\n", n * 5, "", i); + if (dwarf_attr (die, DW_AT_ordering, &attr) == NULL + || dwarf_formudata (&attr, &u2) != 0 + || i != (int) u2) + puts ("************* DW_AT_ordering test failed ************"); + else if (! dwarf_hasform (&attr, DW_FORM_data1) + && ! dwarf_hasform (&attr, DW_FORM_data2) + && ! dwarf_hasform (&attr, DW_FORM_data4) + && ! dwarf_hasform (&attr, DW_FORM_data8) + && ! dwarf_hasform (&attr, DW_FORM_sdata) + && ! dwarf_hasform (&attr, DW_FORM_udata)) + puts ("************* DW_AT_ordering failed ************"); + else if ((u = dwarf_whatform (&attr)) == 0 + || (u != DW_FORM_data1 + && u != DW_FORM_data2 + && u != DW_FORM_data4 + && u != DW_FORM_data8 + && u != DW_FORM_sdata + && u != DW_FORM_udata)) + puts ("************* DW_AT_ordering form (2) failed ************"); + else if (dwarf_whatattr (&attr) != DW_AT_ordering) + puts ("************* DW_AT_ordering attr failed ************"); + } + + if (dwarf_hasattr (die, DW_AT_comp_dir)) + { + Dwarf_Attribute attr; + if (dwarf_attr (die, DW_AT_comp_dir, &attr) == NULL + || (name = dwarf_formstring (&attr)) == NULL) + puts ("************* DW_AT_comp_dir attr failed ************"); + else + printf ("%*s directory : %s\n", n * 5, "", name); + } + + if (dwarf_hasattr (die, DW_AT_producer)) + { + Dwarf_Attribute attr; + if (dwarf_attr (die, DW_AT_producer, &attr) == NULL + || (name = dwarf_formstring (&attr)) == NULL) + puts ("************* DW_AT_comp_dir attr failed ************"); + else + printf ("%*s producer : %s\n", n * 5, "", name); + } + + if (dwarf_haschildren (die) != 0 && dwarf_child (die, &child) == 0) + handle (dbg, &child, n + 1); + if (dwarf_siblingof (die, die) == 0) + handle (dbg, die, n); +} + + +int +main (int argc, char *argv[]) +{ + int cnt; + + for (cnt = 1; cnt < argc; ++cnt) + { + int fd = open (argv[cnt], O_RDONLY); + Dwarf *dbg; + + printf ("file: %s\n", basename (argv[cnt])); + + dbg = dwarf_begin (fd, DWARF_C_READ); + if (dbg == NULL) + { + printf ("%s not usable\n", argv[cnt]); + close (fd); + continue; + } + + Dwarf_Off off = 0; + Dwarf_Off old_off = 0; + size_t hsize; + Dwarf_Off abbrev; + uint8_t addresssize; + uint8_t offsetsize; + while (dwarf_nextcu (dbg, off, &off, &hsize, &abbrev, &addresssize, + &offsetsize) == 0) + { + printf ("New CU: off = %llu, hsize = %zu, ab = %llu, as = %" PRIu8 + ", os = %" PRIu8 "\n", + (unsigned long long int) old_off, hsize, + (unsigned long long int) abbrev, addresssize, + offsetsize); + + Dwarf_Die die; + if (dwarf_offdie (dbg, old_off + hsize, &die) != NULL) + handle (dbg, &die, 1); + + old_off = off; + } + + dwarf_end (dbg); + close (fd); + } + + return 0; +} diff --git a/tests/showptable.c b/tests/showptable.c new file mode 100644 index 0000000..21247c8 --- /dev/null +++ b/tests/showptable.c @@ -0,0 +1,135 @@ +/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 1998. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include + +#include +#include +#include +#include +#include +#include + +int +main (int argc, char *argv[]) +{ + Elf *elf; + int fd; + GElf_Ehdr ehdr; + int cnt; + + if (argc < 2) + { + puts ("missing parameter"); + exit (1); + } + + fd = open (argv[1], O_RDONLY); + if (fd == -1) + { + printf ("cannot open \"%s\": %s\n", argv[1], strerror (errno)); + exit (1); + } + + elf_version (EV_CURRENT); + + elf = elf_begin (fd, ELF_C_READ, NULL); + if (elf == NULL) + { + printf ("cannot open ELF file: %s\n", elf_errmsg (-1)); + exit (1); + } + + if (elf_kind (elf) != ELF_K_ELF) + { + printf ("\"%s\" is not an ELF file\n", argv[1]); + exit (1); + } + + if (gelf_getehdr (elf, &ehdr) == NULL) + { + printf ("cannot get the ELF header: %s\n", elf_errmsg (-1)); + exit (1); + } + + printf ("idx type %*s %*s %*s %*s %*s align flags\n", + gelf_getclass (elf) == ELFCLASS32 ? 9 : 17, "offset", + gelf_getclass (elf) == ELFCLASS32 ? 10 : 18, "vaddr", + gelf_getclass (elf) == ELFCLASS32 ? 10 : 18, "paddr", + gelf_getclass (elf) == ELFCLASS32 ? 9 : 12, "filesz", + gelf_getclass (elf) == ELFCLASS32 ? 9 : 12, "memsz"); + + for (cnt = 0; cnt < ehdr.e_phnum; ++cnt) + { + static const char *typenames[] = + { + [PT_NULL] = "NULL", + [PT_LOAD] = "LOAD", + [PT_DYNAMIC] = "DYNAMIC", + [PT_INTERP] = "INTERP", + [PT_NOTE] = "NOTE", + [PT_SHLIB] = "SHLIB", + [PT_PHDR] = "PHDR" + }; + GElf_Phdr mem; + GElf_Phdr *phdr = gelf_getphdr (elf, cnt, &mem); + char buf[19]; + const char *p_type = typenames[phdr->p_type]; + + /* If we don't know the name of the type we use the number value. */ + if (phdr->p_type >= PT_NUM) + { + snprintf (buf, sizeof (buf), "%x", phdr->p_type); + p_type = buf; + } + + printf ("%3d %-7s %#0*llx %#0*llx %#0*llx %#0*llx %#0*llx %#6llx ", + cnt, p_type, + gelf_getclass (elf) == ELFCLASS32 ? 9 : 17, + (unsigned long long int) phdr->p_offset, + gelf_getclass (elf) == ELFCLASS32 ? 10 : 18, + (unsigned long long int) phdr->p_vaddr, + gelf_getclass (elf) == ELFCLASS32 ? 10 : 18, + (unsigned long long int) phdr->p_paddr, + gelf_getclass (elf) == ELFCLASS32 ? 9 : 12, + (unsigned long long int) phdr->p_filesz, + gelf_getclass (elf) == ELFCLASS32 ? 9 : 12, + (unsigned long long int) phdr->p_memsz, + (unsigned long long int) phdr->p_align); + + putc_unlocked ((phdr->p_flags & PF_X) ? 'X' : ' ', stdout); + putc_unlocked ((phdr->p_flags & PF_W) ? 'W' : ' ', stdout); + putc_unlocked ((phdr->p_flags & PF_R) ? 'R' : ' ', stdout); + + putc_unlocked ('\n', stdout); + + if (phdr->p_type == PT_INTERP) + { + /* We can show the user the name of the interpreter. */ + size_t maxsize; + char *filedata = elf_rawfile (elf, &maxsize); + + if (filedata != NULL && phdr->p_offset < maxsize) + printf ("\t[Requesting program interpreter: %s]\n", + filedata + phdr->p_offset); + } + } + + if (elf_end (elf) != 0) + { + printf ("error while freeing ELF descriptor: %s\n", elf_errmsg (-1)); + exit (1); + } + + return 0; +} diff --git a/tests/test-nlist.c b/tests/test-nlist.c new file mode 100644 index 0000000..1a3f3ec --- /dev/null +++ b/tests/test-nlist.c @@ -0,0 +1,79 @@ +/* Copyright (C) 2000, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#include +#include +#include + + +int var = 1; + +int bss; + + +int +foo (int a) +{ + return a; +} + +int +main (int argc, char *argv[] __attribute__ ((unused))) +{ + struct nlist nl[6] = + { + [0] = { .n_name = "var" }, + [1] = { .n_name = "bss" }, + [2] = { .n_name = "main" }, + [3] = { .n_name = "foo" }, + [4] = { .n_name = "not-there" }, + [5] = { .n_name = NULL }, + }; + int cnt; + int result = 0; + + if (nlist (".libs/test-nlist", nl) != 0 + && nlist ("./test-nlist", nl) != 0) + { + puts ("nlist failed"); + exit (1); + } + + for (cnt = 0; nl[cnt].n_name != NULL; ++cnt) + { + if (argc > 1) + /* For debugging. */ + printf ("nl[%d].n_name = \"%s\"\n" + "nl[%d].n_value = %ld\n" + "nl[%d].n_scnum = %d\n" + "nl[%d].n_type = %u\n" + "nl[%d].n_sclass = %d\n" + "nl[%d].n_numaux = %d\n\n", + cnt, nl[cnt].n_name, + cnt, nl[cnt].n_value, + cnt, nl[cnt].n_scnum, + cnt, nl[cnt].n_type, + cnt, nl[cnt].n_sclass, + cnt, nl[cnt].n_numaux); + + if ((cnt != 4 && nl[cnt].n_value == 0 && nl[cnt].n_scnum == 0 + && nl[cnt].n_type == 0 && nl[cnt].n_sclass == 0 + && nl[cnt].n_numaux == 0) + || (cnt == 4 && (nl[cnt].n_value != 0 || nl[cnt].n_scnum != 0 + || nl[cnt].n_type != 0 || nl[cnt].n_sclass != 0 + || nl[cnt].n_numaux != 0))) + result = 1; + } + + return foo (result); +} diff --git a/tests/testfile.bz2 b/tests/testfile.bz2 new file mode 100644 index 0000000000000000000000000000000000000000..bde9b1269e513a46c695c1929d7fd74e1e358347 GIT binary patch literal 8115 zcmV;kA57pvT4*^jL0KkKSz^CL;{YW^fB*mg|NsC0|NsC0|NsC0|NsC0@Bjb(|Nj5{ z{{Mgfe|_K~UXM)O_uq8x_EXhcL>AbSYd5>@<6GJXz25Qbbsc&iZ@%^isCEPGO$tN- z?`JN69=YjFwo##=C;${F0;mFjdC^nHc6J(RB*JN-10cmRpQzfWl+o&WG75Vsv>K-L zX{qQkdZTHkqta=ok&1d#^)`xrrYY#2QR%7bc{5TyM%48^C!_|Rr=;~6JwP*4)Ot*h 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License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include + + +int +main (int argc, char *argv[] __attribute__ ((unused))) +{ + const char *fname = "xxx"; + int fd; + Elf *elf; + Elf32_Ehdr *ehdr; + int i; + + fd = open (fname, O_RDWR | O_CREAT | O_TRUNC, 0666); + if (fd == -1) + { + printf ("cannot open `%s': %s\n", fname, strerror (errno)); + exit (1); + } + + elf_version (EV_CURRENT); + + elf = elf_begin (fd, ELF_C_WRITE, NULL); + if (elf == NULL) + { + printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Create an ELF header. */ + ehdr = elf32_newehdr (elf); + if (ehdr == NULL) + { + printf ("cannot create ELF header: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Print the ELF header values. */ + if (argc > 1) + { + for (i = 0; i < EI_NIDENT; ++i) + printf (" %02x", ehdr->e_ident[i]); + printf ("\ +\ntype = %hu\nmachine = %hu\nversion = %u\nentry = %u\nphoff = %u\n" + "shoff = %u\nflags = %u\nehsize = %hu\nphentsize = %hu\n" + "phnum = %hu\nshentsize = %hu\nshnum = %hu\nshstrndx = %hu\n", + ehdr->e_type, ehdr->e_machine, ehdr->e_version, ehdr->e_entry, + ehdr->e_phoff, ehdr->e_shoff, ehdr->e_flags, ehdr->e_ehsize, + ehdr->e_phentsize, ehdr->e_phnum, ehdr->e_shentsize, + ehdr->e_shnum, ehdr->e_shstrndx); + } + + ehdr->e_ident[0] = 42; + ehdr->e_ident[4] = 1; + ehdr->e_ident[5] = 1; + ehdr->e_ident[6] = 2; + ehdr->e_ident[9] = 2; + ehdr->e_version = 1; + ehdr->e_ehsize = 1; + + /* Write out the file. */ + if (elf_update (elf, ELF_C_WRITE) < 0) + { + printf ("failure in elf_update: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Create an ELF header. */ + ehdr = elf32_newehdr (elf); + if (ehdr == NULL) + { + printf ("cannot create ELF header: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Print the ELF header values. */ + if (argc > 1) + { + for (i = 0; i < EI_NIDENT; ++i) + printf (" %02x", ehdr->e_ident[i]); + printf ("\ +\ntype = %hu\nmachine = %hu\nversion = %u\nentry = %u\nphoff = %u\n" + "shoff = %u\nflags = %u\nehsize = %hu\nphentsize = %hu\n" + "phnum = %hu\nshentsize = %hu\nshnum = %hu\nshstrndx = %hu\n", + ehdr->e_type, ehdr->e_machine, ehdr->e_version, ehdr->e_entry, + ehdr->e_phoff, ehdr->e_shoff, ehdr->e_flags, ehdr->e_ehsize, + ehdr->e_phentsize, ehdr->e_phnum, ehdr->e_shentsize, + ehdr->e_shnum, ehdr->e_shstrndx); + } + + if (elf_end (elf) != 0) + { + printf ("failure in elf_end: %s\n", elf_errmsg (-1)); + exit (1); + } + + return 0; +} diff --git a/tests/update2.c b/tests/update2.c new file mode 100644 index 0000000..743bfd2 --- /dev/null +++ b/tests/update2.c @@ -0,0 +1,143 @@ +/* Test program for elf_update function. + Copyright (C) 2000, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include + + +int +main (int argc, char *argv[] __attribute__ ((unused))) +{ + const char *fname = "xxx"; + int fd; + Elf *elf; + Elf32_Ehdr *ehdr; + Elf32_Phdr *phdr; + int i; + + fd = open (fname, O_RDWR | O_CREAT | O_TRUNC, 0666); + if (fd == -1) + { + printf ("cannot open `%s': %s\n", fname, strerror (errno)); + exit (1); + } + + elf_version (EV_CURRENT); + + elf = elf_begin (fd, ELF_C_WRITE, NULL); + if (elf == NULL) + { + printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Create an ELF header. */ + ehdr = elf32_newehdr (elf); + if (ehdr == NULL) + { + printf ("cannot create ELF header: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Print the ELF header values. */ + if (argc > 1) + { + for (i = 0; i < EI_NIDENT; ++i) + printf (" %02x", ehdr->e_ident[i]); + printf ("\ +\ntype = %hu\nmachine = %hu\nversion = %u\nentry = %u\nphoff = %u\n" + "shoff = %u\nflags = %u\nehsize = %hu\nphentsize = %hu\n" + "phnum = %hu\nshentsize = %hu\nshnum = %hu\nshstrndx = %hu\n", + ehdr->e_type, ehdr->e_machine, ehdr->e_version, ehdr->e_entry, + ehdr->e_phoff, ehdr->e_shoff, ehdr->e_flags, ehdr->e_ehsize, + ehdr->e_phentsize, ehdr->e_phnum, ehdr->e_shentsize, + ehdr->e_shnum, ehdr->e_shstrndx); + } + + ehdr->e_ident[0] = 42; + ehdr->e_ident[4] = 1; + ehdr->e_ident[5] = 1; + ehdr->e_ident[6] = 2; + ehdr->e_type = ET_EXEC; + ehdr->e_version = 1; + ehdr->e_ehsize = 1; + elf_flagehdr (elf, ELF_C_SET, ELF_F_DIRTY); + + /* Create the program header. */ + phdr = elf32_newphdr (elf, 1); + if (phdr == NULL) + { + printf ("cannot create program header: %s\n", elf_errmsg (-1)); + exit (1); + } + + phdr[0].p_type = PT_PHDR; + elf_flagphdr (elf, ELF_C_SET, ELF_F_DIRTY); + + /* Let the library compute the internal structure information. */ + if (elf_update (elf, ELF_C_NULL) < 0) + { + printf ("failure in elf_update(NULL): %s\n", elf_errmsg (-1)); + exit (1); + } + + ehdr = elf32_getehdr (elf); + + phdr[0].p_offset = ehdr->e_phoff; + phdr[0].p_offset = ehdr->e_phoff; + phdr[0].p_vaddr = ehdr->e_phoff; + phdr[0].p_paddr = ehdr->e_phoff; + phdr[0].p_flags = PF_R | PF_X; + phdr[0].p_filesz = ehdr->e_phnum * elf32_fsize (ELF_T_PHDR, 1, EV_CURRENT); + phdr[0].p_memsz = ehdr->e_phnum * elf32_fsize (ELF_T_PHDR, 1, EV_CURRENT); + phdr[0].p_align = sizeof (Elf32_Word); + + /* Write out the file. */ + if (elf_update (elf, ELF_C_WRITE) < 0) + { + printf ("failure in elf_update(WRITE): %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Print the ELF header values. */ + if (argc > 1) + { + for (i = 0; i < EI_NIDENT; ++i) + printf (" %02x", ehdr->e_ident[i]); + printf ("\ +\ntype = %hu\nmachine = %hu\nversion = %u\nentry = %u\nphoff = %u\n" + "shoff = %u\nflags = %u\nehsize = %hu\nphentsize = %hu\n" + "phnum = %hu\nshentsize = %hu\nshnum = %hu\nshstrndx = %hu\n", + ehdr->e_type, ehdr->e_machine, ehdr->e_version, ehdr->e_entry, + ehdr->e_phoff, ehdr->e_shoff, ehdr->e_flags, ehdr->e_ehsize, + ehdr->e_phentsize, ehdr->e_phnum, ehdr->e_shentsize, + ehdr->e_shnum, ehdr->e_shstrndx); + } + + if (elf_end (elf) != 0) + { + printf ("failure in elf_end: %s\n", elf_errmsg (-1)); + exit (1); + } + + return 0; +} diff --git a/tests/update3.c b/tests/update3.c new file mode 100644 index 0000000..160adf1 --- /dev/null +++ b/tests/update3.c @@ -0,0 +1,198 @@ +/* Test program for elf_update function. + Copyright (C) 2000, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include + +#include + + +int +main (int argc, char *argv[] __attribute__ ((unused))) +{ + const char *fname = "xxx"; + int fd; + Elf *elf; + Elf32_Ehdr *ehdr; + Elf32_Phdr *phdr; + Elf_Scn *scn; + Elf32_Shdr *shdr; + Elf_Data *data; + struct Ebl_Strtab *shst; + struct Ebl_Strent *shstrtabse; + int i; + + fd = open (fname, O_RDWR | O_CREAT | O_TRUNC, 0666); + if (fd == -1) + { + printf ("cannot open `%s': %s\n", fname, strerror (errno)); + exit (1); + } + + elf_version (EV_CURRENT); + + elf_fill (0x42); + + elf = elf_begin (fd, ELF_C_WRITE, NULL); + if (elf == NULL) + { + printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Create an ELF header. */ + ehdr = elf32_newehdr (elf); + if (ehdr == NULL) + { + printf ("cannot create ELF header: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Print the ELF header values. */ + if (argc > 1) + { + for (i = 0; i < EI_NIDENT; ++i) + printf (" %02x", ehdr->e_ident[i]); + printf ("\ +\ntype = %hu\nmachine = %hu\nversion = %u\nentry = %u\nphoff = %u\n" + "shoff = %u\nflags = %u\nehsize = %hu\nphentsize = %hu\n" + "phnum = %hu\nshentsize = %hu\nshnum = %hu\nshstrndx = %hu\n", + ehdr->e_type, ehdr->e_machine, ehdr->e_version, ehdr->e_entry, + ehdr->e_phoff, ehdr->e_shoff, ehdr->e_flags, ehdr->e_ehsize, + ehdr->e_phentsize, ehdr->e_phnum, ehdr->e_shentsize, + ehdr->e_shnum, ehdr->e_shstrndx); + } + + ehdr->e_ident[0] = 42; + ehdr->e_ident[4] = 1; + ehdr->e_ident[5] = 1; + ehdr->e_ident[6] = 2; + ehdr->e_type = ET_EXEC; + ehdr->e_version = 1; + ehdr->e_ehsize = 1; + elf_flagehdr (elf, ELF_C_SET, ELF_F_DIRTY); + + /* Create the program header. */ + phdr = elf32_newphdr (elf, 1); + if (phdr == NULL) + { + printf ("cannot create program header: %s\n", elf_errmsg (-1)); + exit (1); + } + + phdr[0].p_type = PT_PHDR; + elf_flagphdr (elf, ELF_C_SET, ELF_F_DIRTY); + + shst = ebl_strtabinit (true); + + scn = elf_newscn (elf); + if (scn == NULL) + { + printf ("cannot create SHSTRTAB section: %s\n", elf_errmsg (-1)); + exit (1); + } + shdr = elf32_getshdr (scn); + if (shdr == NULL) + { + printf ("cannot get header for SHSTRTAB section: %s\n", elf_errmsg (-1)); + exit (1); + } + + shstrtabse = ebl_strtabadd (shst, ".shstrtab", 0); + + shdr->sh_type = SHT_STRTAB; + shdr->sh_flags = 0; + shdr->sh_addr = 0; + shdr->sh_link = SHN_UNDEF; + shdr->sh_info = SHN_UNDEF; + shdr->sh_addralign = 1; + shdr->sh_entsize = 0; + + /* We have to store the section index in the ELF header. */ + ehdr->e_shstrndx = elf_ndxscn (scn); + + data = elf_newdata (scn); + if (data == NULL) + { + printf ("cannot create data SHSTRTAB section: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* No more sections, finalize the section header string table. */ + ebl_strtabfinalize (shst, data); + + shdr->sh_name = ebl_strtaboffset (shstrtabse); + + /* Let the library compute the internal structure information. */ + if (elf_update (elf, ELF_C_NULL) < 0) + { + printf ("failure in elf_update(NULL): %s\n", elf_errmsg (-1)); + exit (1); + } + + ehdr = elf32_getehdr (elf); + + phdr[0].p_offset = ehdr->e_phoff; + phdr[0].p_offset = ehdr->e_phoff; + phdr[0].p_vaddr = ehdr->e_phoff; + phdr[0].p_paddr = ehdr->e_phoff; + phdr[0].p_flags = PF_R | PF_X; + phdr[0].p_filesz = ehdr->e_phnum * elf32_fsize (ELF_T_PHDR, 1, EV_CURRENT); + phdr[0].p_memsz = ehdr->e_phnum * elf32_fsize (ELF_T_PHDR, 1, EV_CURRENT); + phdr[0].p_align = sizeof (Elf32_Word); + + /* Write out the file. */ + if (elf_update (elf, ELF_C_WRITE) < 0) + { + printf ("failure in elf_update(WRITE): %s\n", elf_errmsg (-1)); + exit (1); + } + + /* We don't need the string table anymore. */ + ebl_strtabfree (shst); + + /* And the data allocated in the .shstrtab section. */ + free (data->d_buf); + + /* Print the ELF header values. */ + if (argc > 1) + { + for (i = 0; i < EI_NIDENT; ++i) + printf (" %02x", ehdr->e_ident[i]); + printf ("\ +\ntype = %hu\nmachine = %hu\nversion = %u\nentry = %u\nphoff = %u\n" + "shoff = %u\nflags = %u\nehsize = %hu\nphentsize = %hu\n" + "phnum = %hu\nshentsize = %hu\nshnum = %hu\nshstrndx = %hu\n", + ehdr->e_type, ehdr->e_machine, ehdr->e_version, ehdr->e_entry, + ehdr->e_phoff, ehdr->e_shoff, ehdr->e_flags, ehdr->e_ehsize, + ehdr->e_phentsize, ehdr->e_phnum, ehdr->e_shentsize, + ehdr->e_shnum, ehdr->e_shstrndx); + } + + if (elf_end (elf) != 0) + { + printf ("failure in elf_end: %s\n", elf_errmsg (-1)); + exit (1); + } + + return 0; +} diff --git a/tests/update4.c b/tests/update4.c new file mode 100644 index 0000000..30f3a07 --- /dev/null +++ b/tests/update4.c @@ -0,0 +1,353 @@ +/* Test program for elf_update function. + Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. + Written by Ulrich Drepper , 2000. + + This program is Open Source software; you can redistribute it and/or + modify it under the terms of the Open Software License version 1.0 as + published by the Open Source Initiative. + + You should have received a copy of the Open Software License along + with this program; if not, you may obtain a copy of the Open Software + License version 1.0 from http://www.opensource.org/licenses/osl.php or + by writing the Open Source Initiative c/o Lawrence Rosen, Esq., + 3001 King Ranch Road, Ukiah, CA 95482. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include +#include +#include +#include + +#include + + +int +main (int argc, char *argv[] __attribute__ ((unused))) +{ + const char fname[] = "xxx"; + int fd; + Elf *elf; + Elf32_Ehdr *ehdr; + Elf32_Phdr *phdr; + Elf_Scn *scn; + Elf32_Shdr *shdr; + Elf_Data *data; + struct Ebl_Strtab *shst; + struct Ebl_Strent *firstse; + struct Ebl_Strent *secondse; + struct Ebl_Strent *thirdse; + struct Ebl_Strent *fourthse; + struct Ebl_Strent *shstrtabse; + int i; + + fd = open (fname, O_RDWR | O_CREAT | O_TRUNC, 0666); + if (fd == -1) + { + printf ("cannot open `%s': %s\n", fname, strerror (errno)); + exit (1); + } + + elf_version (EV_CURRENT); + + elf_fill (0x42); + + elf = elf_begin (fd, ELF_C_WRITE, NULL); + if (elf == NULL) + { + printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Create an ELF header. */ + ehdr = elf32_newehdr (elf); + if (ehdr == NULL) + { + printf ("cannot create ELF header: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* Print the ELF header values. */ + if (argc > 1) + { + for (i = 0; i < EI_NIDENT; ++i) + printf (" %02x", ehdr->e_ident[i]); + printf ("\ +\ntype = %hu\nmachine = %hu\nversion = %u\nentry = %u\nphoff = %u\n" + "shoff = %u\nflags = %u\nehsize = %hu\nphentsize = %hu\n" + "phnum = %hu\nshentsize = %hu\nshnum = %hu\nshstrndx = %hu\n", + ehdr->e_type, ehdr->e_machine, ehdr->e_version, ehdr->e_entry, + ehdr->e_phoff, ehdr->e_shoff, ehdr->e_flags, ehdr->e_ehsize, + ehdr->e_phentsize, ehdr->e_phnum, ehdr->e_shentsize, + ehdr->e_shnum, ehdr->e_shstrndx); + } + + ehdr->e_ident[0] = 42; + ehdr->e_ident[4] = 1; + ehdr->e_ident[5] = 1; + ehdr->e_ident[6] = 2; + ehdr->e_type = ET_EXEC; + ehdr->e_version = 1; + ehdr->e_ehsize = 1; + elf_flagehdr (elf, ELF_C_SET, ELF_F_DIRTY); + + /* Create the program header. */ + phdr = elf32_newphdr (elf, 1); + if (phdr == NULL) + { + printf ("cannot create program header: %s\n", elf_errmsg (-1)); + exit (1); + } + + phdr[0].p_type = PT_PHDR; + elf_flagphdr (elf, ELF_C_SET, ELF_F_DIRTY); + + shst = ebl_strtabinit (true); + + scn = elf_newscn (elf); + if (scn == NULL) + { + printf ("cannot create first section: %s\n", elf_errmsg (-1)); + exit (1); + } + shdr = elf32_getshdr (scn); + if (shdr == NULL) + { + printf ("cannot get header for first section: %s\n", elf_errmsg (-1)); + exit (1); + } + + firstse = ebl_strtabadd (shst, ".first", 0); + + shdr->sh_type = SHT_PROGBITS; + shdr->sh_flags = SHF_ALLOC | SHF_EXECINSTR; + shdr->sh_addr = 0; + shdr->sh_link = 0; + shdr->sh_info = 0; + shdr->sh_entsize = 1; + + data = elf_newdata (scn); + if (data == NULL) + { + printf ("cannot create data first section: %s\n", elf_errmsg (-1)); + exit (1); + } + + data->d_buf = "hello"; + data->d_type = ELF_T_BYTE; + data->d_version = EV_CURRENT; + data->d_size = 5; + data->d_align = 16; + + + scn = elf_newscn (elf); + if (scn == NULL) + { + printf ("cannot create second section: %s\n", elf_errmsg (-1)); + exit (1); + } + shdr = elf32_getshdr (scn); + if (shdr == NULL) + { + printf ("cannot get header for second section: %s\n", elf_errmsg (-1)); + exit (1); + } + + secondse = ebl_strtabadd (shst, ".second", 0); + + shdr->sh_type = SHT_PROGBITS; + shdr->sh_flags = SHF_ALLOC | SHF_WRITE; + shdr->sh_addr = 0; + shdr->sh_link = 0; + shdr->sh_info = 0; + shdr->sh_entsize = 1; + + data = elf_newdata (scn); + if (data == NULL) + { + printf ("cannot create data second section: %s\n", elf_errmsg (-1)); + exit (1); + } + + data->d_buf = "world"; + data->d_type = ELF_T_BYTE; + data->d_version = EV_CURRENT; + data->d_size = 5; + data->d_align = 16; + + + scn = elf_newscn (elf); + if (scn == NULL) + { + printf ("cannot create third section: %s\n", elf_errmsg (-1)); + exit (1); + } + shdr = elf32_getshdr (scn); + if (shdr == NULL) + { + printf ("cannot get header for third section: %s\n", elf_errmsg (-1)); + exit (1); + } + + thirdse = ebl_strtabadd (shst, ".third", 0); + + shdr->sh_type = SHT_PROGBITS; + shdr->sh_flags = SHF_ALLOC | SHF_EXECINSTR; + shdr->sh_addr = 0; + shdr->sh_link = 0; + shdr->sh_info = 0; + shdr->sh_entsize = 1; + + data = elf_newdata (scn); + if (data == NULL) + { + printf ("cannot create data third section: %s\n", elf_errmsg (-1)); + exit (1); + } + + data->d_buf = "!!!!!"; + data->d_type = ELF_T_BYTE; + data->d_version = EV_CURRENT; + data->d_size = 5; + data->d_align = 16; + + + scn = elf_newscn (elf); + if (scn == NULL) + { + printf ("cannot create fourth section: %s\n", elf_errmsg (-1)); + exit (1); + } + shdr = elf32_getshdr (scn); + if (shdr == NULL) + { + printf ("cannot get header for fourth section: %s\n", elf_errmsg (-1)); + exit (1); + } + + fourthse = ebl_strtabadd (shst, ".fourth", 0); + + shdr->sh_type = SHT_NOBITS; + shdr->sh_flags = SHF_ALLOC | SHF_EXECINSTR; + shdr->sh_addr = 0; + shdr->sh_link = 0; + shdr->sh_info = 0; + shdr->sh_entsize = 1; + shdr->sh_size = 100; + + data = elf_newdata (scn); + if (data == NULL) + { + printf ("cannot create data fourth section: %s\n", elf_errmsg (-1)); + exit (1); + } + + data->d_buf = NULL; + data->d_type = ELF_T_BYTE; + data->d_version = EV_CURRENT; + data->d_size = 100; + data->d_align = 16; + + + scn = elf_newscn (elf); + if (scn == NULL) + { + printf ("cannot create SHSTRTAB section: %s\n", elf_errmsg (-1)); + exit (1); + } + shdr = elf32_getshdr (scn); + if (shdr == NULL) + { + printf ("cannot get header for SHSTRTAB section: %s\n", elf_errmsg (-1)); + exit (1); + } + + shstrtabse = ebl_strtabadd (shst, ".shstrtab", 0); + + shdr->sh_type = SHT_STRTAB; + shdr->sh_flags = 0; + shdr->sh_addr = 0; + shdr->sh_link = SHN_UNDEF; + shdr->sh_info = SHN_UNDEF; + shdr->sh_entsize = 1; + + /* We have to store the section index in the ELF header. */ + ehdr->e_shstrndx = elf_ndxscn (scn); + + data = elf_newdata (scn); + if (data == NULL) + { + printf ("cannot create data SHSTRTAB section: %s\n", elf_errmsg (-1)); + exit (1); + } + + /* No more sections, finalize the section header string table. */ + ebl_strtabfinalize (shst, data); + + elf32_getshdr (elf_getscn (elf, 1))->sh_name = ebl_strtaboffset (firstse); + elf32_getshdr (elf_getscn (elf, 2))->sh_name = ebl_strtaboffset (secondse); + elf32_getshdr (elf_getscn (elf, 3))->sh_name = ebl_strtaboffset (thirdse); + elf32_getshdr (elf_getscn (elf, 4))->sh_name = ebl_strtaboffset (fourthse); + shdr->sh_name = ebl_strtaboffset (shstrtabse); + + /* Let the library compute the internal structure information. */ + if (elf_update (elf, ELF_C_NULL) < 0) + { + printf ("failure in elf_update(NULL): %s\n", elf_errmsg (-1)); + exit (1); + } + + ehdr = elf32_getehdr (elf); + + phdr[0].p_offset = ehdr->e_phoff; + phdr[0].p_offset = ehdr->e_phoff; + phdr[0].p_vaddr = ehdr->e_phoff; + phdr[0].p_paddr = ehdr->e_phoff; + phdr[0].p_flags = PF_R | PF_X; + phdr[0].p_filesz = ehdr->e_phnum * elf32_fsize (ELF_T_PHDR, 1, EV_CURRENT); + phdr[0].p_memsz = ehdr->e_phnum * elf32_fsize (ELF_T_PHDR, 1, EV_CURRENT); + phdr[0].p_align = sizeof (Elf32_Word); + + /* Write out the file. */ + if (elf_update (elf, ELF_C_WRITE) < 0) + { + printf ("failure in elf_update(WRITE): %s\n", elf_errmsg (-1)); + exit (1); + } + + /* We don't need the string table anymore. */ + ebl_strtabfree (shst); + + /* And the data allocated in the .shstrtab section. */ + free (data->d_buf); + + /* Print the ELF header values. */ + if (argc > 1) + { + for (i = 0; i < EI_NIDENT; ++i) + printf (" %02x", ehdr->e_ident[i]); + printf ("\ +\ntype = %hu\nmachine = %hu\nversion = %u\nentry = %u\nphoff = %u\n" + "shoff = %u\nflags = %u\nehsize = %hu\nphentsize = %hu\n" + "phnum = %hu\nshentsize = %hu\nshnum = %hu\nshstrndx = %hu\n", + ehdr->e_type, ehdr->e_machine, ehdr->e_version, ehdr->e_entry, + ehdr->e_phoff, ehdr->e_shoff, ehdr->e_flags, ehdr->e_ehsize, + ehdr->e_phentsize, ehdr->e_phnum, ehdr->e_shentsize, + ehdr->e_shnum, ehdr->e_shstrndx); + } + + if (elf_end (elf) != 0) + { + printf ("failure in elf_end: %s\n", elf_errmsg (-1)); + exit (1); + } + + unlink (fname); + + return 0; +} -- 2.7.4