1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright (C) 1995-2015 Free Software Foundation, Inc.
4 dnl This file is part of GDB.
6 dnl This program is free software; you can redistribute it and/or modify
7 dnl it under the terms of the GNU General Public License as published by
8 dnl the Free Software Foundation; either version 3 of the License, or
9 dnl (at your option) any later version.
11 dnl This program is distributed in the hope that it will be useful,
12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 dnl GNU General Public License for more details.
16 dnl You should have received a copy of the GNU General Public License
17 dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
19 dnl Process this file with autoconf to produce a configure script.
23 AC_CONFIG_HEADER(config.h:config.in)
26 # Set the 'development' global.
27 . $srcdir/../bfd/development.sh
32 AC_USE_SYSTEM_EXTENSIONS
41 # See if we are building with C++, and substitute COMPILER.
44 # Dependency checking.
46 ZW_PROG_COMPILER_DEPENDENCIES([CC])
48 # Check for the 'make' the user wants to use.
49 AC_CHECK_PROGS(MAKE, make)
51 case "`$MAKE --version 2>&1 | sed 1q`" in
56 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
59 gnulib_extra_configure_args=
60 # If large-file support is disabled, make sure gnulib does the same.
61 if test "$enable_largefile" = no; then
62 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
65 # Configure gnulib. We need to build gnulib under some other
66 # directory not "gnulib", to avoid the problem of both GDB and
67 # GDBserver wanting to build it in the same directory, when building
69 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"],
70 ["$gnulib_extra_configure_args"])
72 dnl List of object files and targets accumulated by configure.
84 dnl Set up for gettext.
85 ZW_GNU_GETTEXT_SISTER_DIR
87 localedir='${datadir}/locale'
90 if test x"$USE_NLS" = xyes; then
91 CONFIG_ALL="$CONFIG_ALL all-po"
92 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
93 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
94 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
97 GNULIB=build-gnulib/import
99 # For Makefile dependencies.
101 if test x"$STDINT_H" != x; then
102 GNULIB_STDINT_H=$GNULIB/$STDINT_H
104 AC_SUBST(GNULIB_STDINT_H)
107 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
110 # We never need to detect it in this sub-configure.
111 # But preserve it for config.status --recheck.
113 [Parent configure detects if it is of sufficient version.])
114 AC_ARG_VAR(MAKEINFOFLAGS,
115 [Parameters for MAKEINFO.])
117 MAKEINFO_EXTRA_FLAGS=""
118 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
119 [echo '@clicksequence{a @click{} b}' >conftest.texinfo
120 if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
121 gdb_cv_have_makeinfo_click=yes
123 gdb_cv_have_makeinfo_click=no
125 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
126 MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
128 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
130 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
131 [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
134 # We can't pass paths as command line arguments.
135 # Mingw32 tries to be clever and will convert the paths for us.
136 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
137 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
138 # This breaks GDB's relocatable path conversions since paths passed in
139 # config.h would not get so translated, the path prefixes no longer match.
140 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
142 # GDB's datadir relocation
144 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
145 [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
148 AC_ARG_WITH(relocated-sources,
149 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
150 [reloc_srcdir="${withval}"
151 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
152 [Relocated directory for source files. ])
155 AC_MSG_CHECKING([for default auto-load directory])
156 AC_ARG_WITH(auto-load-dir,
157 AS_HELP_STRING([--with-auto-load-dir=PATH],
158 [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
159 [with_auto_load_dir='$debugdir:$datadir/auto-load'])
160 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
161 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
162 [Directories from which to load auto-loaded scripts.])
163 AC_MSG_RESULT([$with_auto_load_dir])
165 AC_MSG_CHECKING([for default auto-load safe-path])
166 AC_ARG_WITH(auto-load-safe-path,
167 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
168 [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
169 AS_HELP_STRING([--without-auto-load-safe-path],
170 [do not restrict auto-loaded files locations]),
171 [if test "$with_auto_load_safe_path" = "no"; then
172 with_auto_load_safe_path="/"
174 [with_auto_load_safe_path="$with_auto_load_dir"])
175 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
176 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
177 [Directories safe to hold auto-loaded files.])
178 AC_MSG_RESULT([$with_auto_load_safe_path])
180 AC_CONFIG_SUBDIRS(testsuite)
182 # Check whether to support alternative target configurations
183 AC_ARG_ENABLE(targets,
184 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
185 [case "${enableval}" in
186 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
188 no) enable_targets= ;;
189 *) enable_targets=$enableval ;;
192 # Check whether to enable 64-bit support on 32-bit hosts
193 AC_ARG_ENABLE(64-bit-bfd,
194 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
195 [case "${enableval}" in
198 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
199 esac],[want64=false])dnl
201 # Provide defaults for some variables set by the per-host and per-target
203 gdb_host_obs=posix-hdep.o
205 if test "${target}" = "${host}"; then
211 . $srcdir/configure.host
213 # Add in the common host objects.
214 . $srcdir/common/common.host
215 gdb_host_obs="$gdb_host_obs $common_host_obs"
217 # Accumulate some settings from configure.tgt over all enabled targets
221 HAVE_NATIVE_GCORE_TARGET=
223 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
225 if test "$targ_alias" = "all"; then
228 # Canonicalize the secondary target names.
229 result=`$ac_config_sub $targ_alias 2>/dev/null`
230 if test -n "$result"; then
236 . ${srcdir}/configure.tgt
238 AS_IF([test -z "${gdb_target_obs}"],
239 [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
241 # Target-specific object files
242 for i in ${gdb_target_obs}; do
243 case " $TARGET_OBS " in
246 TARGET_OBS="$TARGET_OBS ${i}"
251 # Check whether this target needs 64-bit CORE_ADDR
252 if test x${want64} = xfalse; then
253 . ${srcdir}/../bfd/config.bfd
256 # Check whether this target is native and supports gcore.
257 if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
258 && $gdb_have_gcore; then
259 HAVE_NATIVE_GCORE_TARGET=1
264 if test x${all_targets} = xtrue; then
266 # We want all 64-bit targets if we either:
267 # - run on a 64-bit host or
268 # - already require 64-bit support for some other target or
269 # - the --enable-64-bit-bfd option was supplied
270 # Otherwise we only support all 32-bit targets.
272 # NOTE: This test must be in sync with the corresponding
275 if test x${want64} = xfalse; then
276 AC_CHECK_SIZEOF(long)
277 if test "x${ac_cv_sizeof_long}" = "x8"; then
281 if test x${want64} = xtrue; then
282 TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
284 TARGET_OBS='$(ALL_TARGET_OBS)'
289 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
291 # For other settings, only the main target counts.
295 targ=$target; . ${srcdir}/configure.tgt
297 # Fetch the default architecture and default target vector from BFD.
298 targ=$target; . $srcdir/../bfd/config.bfd
300 # We only want the first architecture, so strip off the others if
301 # there is more than one.
302 targ_archs=`echo $targ_archs | sed 's/ .*//'`
304 if test "x$targ_archs" != x; then
305 AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
306 [Define to BFD's default architecture. ])
308 if test "x$targ_defvec" != x; then
309 AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
310 [Define to BFD's default target vector. ])
313 # The CLI cannot be disabled yet, but may be in the future.
316 AC_ARG_ENABLE(gdbcli,
317 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
322 AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
324 AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
327 if test x"$enable_gdbcli" = xyes; then
328 if test -d $srcdir/cli; then
329 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
330 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
331 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
332 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
338 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
343 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
346 if test x"$enable_gdbmi" = xyes; then
347 if test -d $srcdir/mi; then
348 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
349 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
350 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
351 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
357 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
362 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
363 esac],enable_tui=auto)
367 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
372 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
374 [if test -d $srcdir/gdbtk; then
379 # We unconditionally disable gdbtk tests on selected platforms.
382 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
386 # Libunwind support for ia64.
388 AC_ARG_WITH(libunwind-ia64,
389 AS_HELP_STRING([--with-libunwind-ia64],
390 [use libunwind frame unwinding for ia64 targets]),,
391 [with_libunwind_ia64=auto])
393 # Backward compatibility option.
394 if test "${with_libunwind+set}" = set; then
395 if test x"$with_libunwind_ia64" != xauto; then
397 [option --with-libunwind is deprecated, use --with-libunwind-ia64])
399 AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
400 with_libunwind_ia64="$with_libunwind"
403 case "$with_libunwind_ia64" in
407 AC_CHECK_HEADERS(libunwind-ia64.h)
408 with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
412 [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
416 if test x"$with_libunwind_ia64" = xyes; then
417 AC_CHECK_HEADERS(libunwind-ia64.h)
418 if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
419 AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
421 CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
422 CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
423 CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
427 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
430 if test "$opt_curses" = "yes"; then
435 AC_ARG_ENABLE(profiling,
436 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
441 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
443 [enable_profiling=no])
445 AC_CHECK_FUNCS(monstartup _mcleanup)
446 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
451 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
452 if test $ac_cv_var__etext = yes; then
453 AC_DEFINE(HAVE__ETEXT, 1,
454 [Define to 1 if your system has the _etext variable. ])
456 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
461 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
462 if test $ac_cv_var_etext = yes; then
463 AC_DEFINE(HAVE_ETEXT, 1,
464 [Define to 1 if your system has the etext variable. ])
466 if test "$enable_profiling" = yes ; then
467 if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
468 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
472 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
474 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
475 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
476 ac_cv_cc_supports_pg=no)])
478 if test $ac_cv_cc_supports_pg = no; then
479 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
485 ACX_PKGVERSION([GDB])
486 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
487 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
488 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
490 # --------------------- #
491 # Checks for programs. #
492 # --------------------- #
500 AC_CHECK_TOOL(AR, ar)
501 AC_CHECK_TOOL(DLLTOOL, dlltool)
502 AC_CHECK_TOOL(WINDRES, windres)
506 # Needed for GNU Hurd hosts.
507 AC_CHECK_TOOL(MIG, mig)
508 if test x"$MIG" = x; then
509 AC_MSG_ERROR([MIG not found but required for $host hosts])
514 # ---------------------- #
515 # Checks for libraries. #
516 # ---------------------- #
518 # We might need to link with -lm; most simulators need it.
519 AC_CHECK_LIB(m, main)
521 # We need to link with -lw to get `wctype' on Solaris before Solaris
522 # 2.6. Solaris 2.6 and beyond have this function in libc, and have a
523 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
524 # is known to have this problem). Therefore we avoid libw if we can.
525 AC_CHECK_FUNC(wctype, [],
526 [AC_CHECK_LIB(w, wctype)])
528 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
529 AC_SEARCH_LIBS(gethostbyname, nsl)
531 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
532 AC_SEARCH_LIBS(socketpair, socket)
534 # Link in zlib if we can. This allows us to read compressed debug sections.
537 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
538 AC_SEARCH_LIBS(kinfo_getvmmap, util,
539 [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
540 [Define to 1 if your system has the kinfo_getvmmap function. ])])
544 # GDB may fork/exec the iconv program to get the list of supported character
545 # sets. Allow the user to specify where to find it.
546 # There are several factors affecting the choice of option name:
547 # - There is already --with-libiconv-prefix but we can't use it, it specifies
548 # the build-time location of libiconv files.
549 # - The program we need to find is iconv, which comes with glibc. The user
550 # doesn't necessarily have libiconv installed. Therefore naming this
551 # --with-libiconv-foo feels wrong.
552 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
553 # defined to work on directories not files (though it really doesn't know
555 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
556 # with --with-libiconv-prefix.
557 # Putting these together is why the option name is --with-iconv-bin.
559 AC_ARG_WITH(iconv-bin,
560 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
561 [iconv_bin="${withval}"
562 AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
563 [Path of directory of iconv program.])
564 GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
567 # For the TUI, we need enhanced curses functionality.
568 if test x"$enable_tui" != xno; then
573 if test x"$prefer_curses" = xyes; then
574 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
575 # curses library because the latter might not provide all the
576 # functionality we need. However, this leads to problems on systems
577 # where the linker searches /usr/local/lib, but the compiler doesn't
578 # search /usr/local/include, if ncurses is installed in /usr/local. A
579 # default installation of ncurses on alpha*-dec-osf* will lead to such
581 AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
583 if test "$ac_cv_search_waddstr" != no; then
588 # Check whether we should enable the TUI, but only do so if we really
590 if test x"$enable_tui" != xno; then
591 if test -d $srcdir/tui; then
592 if test "$curses_found" != no; then
593 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
594 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
595 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
596 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
598 if test x"$enable_tui" = xyes; then
599 AC_MSG_ERROR([no enhanced curses library found; disable TUI])
601 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
607 # Since GDB uses Readline, we need termcap functionality. In many
608 # cases this will be provided by the curses library, but some systems
609 # have a seperate termcap library, or no curses library at all.
613 if test -d $srcdir/libtermcap; then
614 LIBS="../libtermcap/libtermcap.a $LIBS"
615 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
618 ac_cv_search_tgetent="none required"
622 # These are the libraries checked by Readline.
623 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
625 if test "$ac_cv_search_tgetent" = no; then
626 CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
629 AC_ARG_WITH([system-readline],
630 [AS_HELP_STRING([--with-system-readline],
631 [use installed readline library])])
633 if test "$with_system_readline" = yes; then
637 READLINE_TEXI_INCFLAG=
639 READLINE='$(READLINE_DIR)/libreadline.a'
640 READLINE_DEPS='$(READLINE)'
641 READLINE_CFLAGS='-I$(READLINE_SRC)/..'
642 READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
645 AC_SUBST(READLINE_DEPS)
646 AC_SUBST(READLINE_CFLAGS)
647 AC_SUBST(READLINE_TEXI_INCFLAG)
649 # Generate jit-reader.h
651 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
654 AC_CHECK_SIZEOF(unsigned long long)
655 AC_CHECK_SIZEOF(unsigned long)
656 AC_CHECK_SIZEOF(unsigned __int128)
658 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
659 TARGET_PTR="unsigned long"
660 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
661 TARGET_PTR="unsigned long long"
662 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
663 TARGET_PTR="unsigned __int128"
665 TARGET_PTR="unsigned long"
669 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
671 AC_SEARCH_LIBS(dlopen, dl)
673 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
674 [directory to load the JIT readers from],
678 AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
679 [], [with_expat=auto])
680 AC_MSG_CHECKING([whether to use expat])
681 AC_MSG_RESULT([$with_expat])
683 if test "${with_expat}" = no; then
684 AC_MSG_WARN([expat support disabled; some features may be unavailable.])
687 AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
688 [XML_Parser p = XML_ParserCreate (0);])
689 if test "$HAVE_LIBEXPAT" != yes; then
690 if test "$with_expat" = yes; then
691 AC_MSG_ERROR([expat is missing or unusable])
693 AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
697 LIBS="$LIBS $LIBEXPAT"
698 AC_CHECK_FUNCS(XML_StopParser)
703 # --------------------- #
704 # Check for libpython. #
705 # --------------------- #
707 dnl Utility to simplify finding libpython.
709 dnl $2 = the shell variable to assign the result to
710 dnl If libpython is found we store $version here.
711 dnl $3 = additional flags to add to CPPFLAGS
712 dnl $4 = additional flags to add to LIBS
714 AC_DEFUN([AC_TRY_LIBPYTHON],
717 define([have_libpython_var],$2)
720 AC_MSG_CHECKING([for ${version}])
721 save_CPPFLAGS=$CPPFLAGS
723 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
724 LIBS="$LIBS $new_LIBS"
725 found_usable_python=no
726 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
727 [[Py_Initialize ();]]),
728 [have_libpython_var=${version}
729 found_usable_python=yes
730 PYTHON_CPPFLAGS=$new_CPPFLAGS
731 PYTHON_LIBS=$new_LIBS])
732 CPPFLAGS=$save_CPPFLAGS
734 AC_MSG_RESULT([${found_usable_python}])
737 dnl There are several different values for --with-python:
739 dnl no - Don't include python support.
740 dnl yes - Include python support, error if it's missing.
741 dnl If we find python in $PATH, use it to fetch configure options,
742 dnl otherwise assume the compiler can find it with no help from us.
743 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
744 dnl auto - Same as "yes", but if python is missing from the system,
745 dnl fall back to "no".
746 dnl /path/to/python/exec-prefix -
747 dnl Use the python located in this directory.
748 dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
749 dnl the compilation parameters. Otherwise use
750 dnl -I/path/to/python/exec-prefix/include,
751 dnl -L/path/to/python/exec-prefix/lib.
752 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
753 dnl NOTE: This case is historical. It is what was done for 7.0/7.1
754 dnl but is deprecated.
755 dnl /path/to/python/executable -
756 dnl Run python-config.py with this version of python to fetch the
757 dnl compilation parameters.
758 dnl NOTE: This needn't be the real python executable.
759 dnl In a cross-compilation scenario (build != host), this could be
760 dnl a shell script that provides what python-config.py provides for
761 dnl --ldflags, --includes, --exec-prefix.
762 dnl python-executable -
763 dnl Find python-executable in $PATH, and then handle the same as
764 dnl /path/to/python/executable.
766 dnl If a python program is specified, it is used to run python-config.py and
767 dnl is passed --ldflags, --includes, --exec-prefix.
770 AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
771 [], [with_python=auto])
772 AC_MSG_CHECKING([whether to use python])
773 AC_MSG_RESULT([$with_python])
775 if test "${with_python}" = no; then
776 AC_MSG_WARN([python support disabled; some features may be unavailable.])
779 case "${with_python}" in
780 [[\\/]]* | ?:[[\\/]]*)
781 if test -d ${with_python}; then
782 # Assume the python binary is ${with_python}/bin/python.
783 python_prog="${with_python}/bin/python"
785 # If python does not exit ${with_python}/bin, then try in
786 # ${with_python}. On Windows/MinGW, this is where the Python
788 if test ! -x "${python_prog}"; then
789 python_prog="${with_python}/python"
792 if test ! -x "${python_prog}"; then
793 # Fall back to gdb 7.0/7.1 behaviour.
795 python_prefix=${with_python}
797 elif test -x "${with_python}"; then
798 # While we can't run python compiled for $host (unless host == build),
799 # the user could write a script that provides the needed information,
800 # so we support that.
801 python_prog=${with_python}
804 AC_ERROR(invalid value for --with-python)
808 # Disallow --with-python=foo/bar.
809 AC_ERROR(invalid value for --with-python)
812 # The user has either specified auto, yes, or the name of the python
813 # program assumed to be in $PATH.
815 case "${with_python}" in
817 if test ${build} = ${host}; then
818 AC_PATH_PROG(python_prog_path, python, missing)
819 if test "${python_prog_path}" = missing; then
822 python_prog=${python_prog_path}
825 # Not much we can do except assume the cross-compiler will find the
831 # While we can't run python compiled for $host (unless host == build),
832 # the user could write a script that provides the needed information,
833 # so we support that.
834 python_prog="${with_python}"
835 AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
836 if test "${python_prog_path}" = missing; then
837 AC_ERROR(unable to find python program ${python_prog})
843 if test "${python_prog}" != missing; then
844 # We have a python program to use, but it may be too old.
845 # Don't flag an error for --with-python=auto (the default).
846 have_python_config=yes
847 python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
848 if test $? != 0; then
849 have_python_config=failed
850 if test "${with_python}" != auto; then
851 AC_ERROR(failure running python-config --includes)
854 python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
855 if test $? != 0; then
856 have_python_config=failed
857 if test "${with_python}" != auto; then
858 AC_ERROR(failure running python-config --ldflags)
861 python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
862 if test $? != 0; then
863 have_python_config=failed
864 if test "${with_python}" != auto; then
865 AC_ERROR(failure running python-config --exec-prefix)
869 # We do not have a python executable we can use to determine where
870 # to find the Python headers and libs. We cannot guess the include
871 # path from the python_prefix either, because that include path
872 # depends on the Python version. So, there is nothing much we can
873 # do except assume that the compiler will be able to find those files.
876 have_python_config=no
879 # If we have python-config, only try the configuration it provides.
880 # Otherwise fallback on the old way of trying different versions of
884 if test "${have_python_config}" = yes; then
885 # Determine the Python version by extracting "-lpython<version>"
886 # part of the python_libs. <version> is usually X.Y with X and Y
887 # being decimal numbers, but can also be XY (seen on Windows).
889 # The extraction is performed using sed with a regular expression.
890 # Initially, the regexp used was using the '?' quantifier to make
891 # the dot in the version number optional. Unfortunately, this
892 # does not work with non-GNU versions of sed because, because of
893 # what looks like a limitation (the '?' quantifier does not work
894 # with back-references). We work around this limitation by using
895 # the '*' quantifier instead. It means that, in theory, we might
896 # match unexpected version strings such as "-lpython2..7", but
897 # this seems unlikely in practice. And even if that happens,
898 # an error will be triggered later on, when checking that version
900 python_version=`echo " ${python_libs} " \
901 | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
902 case "${python_version}" in
904 AC_TRY_LIBPYTHON(${python_version}, have_libpython,
905 ${python_includes}, ${python_libs})
908 AC_MSG_ERROR([unable to determine python version from ${python_libs}])
911 elif test "${have_python_config}" != failed; then
912 if test "${have_libpython}" = no; then
913 AC_TRY_LIBPYTHON(python2.7, have_libpython,
914 ${python_includes}, "${python_libs} -lpython2.7")
916 if test "${have_libpython}" = no; then
917 AC_TRY_LIBPYTHON(python2.6, have_libpython,
918 ${python_includes}, "${python_libs} -lpython2.6")
920 if test ${have_libpython} = no; then
921 AC_TRY_LIBPYTHON(python2.5, have_libpython,
922 ${python_includes}, "${python_libs} -lpython2.5")
924 if test ${have_libpython} = no; then
925 AC_TRY_LIBPYTHON(python2.4, have_libpython,
926 ${python_includes}, "${python_libs} -lpython2.4")
929 if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
930 AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
931 elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
932 AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
933 elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
934 AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
935 elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
936 AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
939 if test "${have_libpython}" = no; then
940 case "${with_python}" in
942 AC_MSG_ERROR([python is missing or unusable])
945 AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
948 AC_MSG_ERROR([no usable python found at ${with_python}])
952 if test -n "${python_prefix}"; then
953 AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
954 [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
955 GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
960 if test "${have_libpython}" != no; then
961 AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
962 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
963 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
964 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
965 CONFIG_INSTALL="$CONFIG_INSTALL install-python"
966 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
968 # Flags needed to compile Python code (taken from python-config --cflags).
969 # We cannot call python-config directly because it will output whatever was
970 # used when compiling the Python interpreter itself, including flags which
971 # would make the python-related objects be compiled differently from the
972 # rest of GDB (e.g., -O2 and -fPIC).
973 if test "${GCC}" = yes; then
974 tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
977 if test "x${tentative_python_cflags}" != x; then
978 AC_MSG_CHECKING(compiler flags for python code)
979 for flag in ${tentative_python_cflags}; do
980 # Check that the compiler accepts it
981 saved_CFLAGS="$CFLAGS"
982 CFLAGS="$CFLAGS $flag"
983 AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
984 CFLAGS="$saved_CFLAGS"
986 AC_MSG_RESULT(${PYTHON_CFLAGS})
989 # On x64 Windows, Python's include headers, and pyconfig.h in
990 # particular, rely on MS_WIN64 macro to detect that it's a 64bit
991 # version of Windows. Unfortunately, MS_WIN64 is only defined if
992 # _MSC_VER, a Microsoft-specific macro, is defined. So, when
993 # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
994 # The issue was reported to the Python community, but still isn't
995 # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
999 if test "${GCC}" = yes; then
1000 CPPFLAGS="$CPPFLAGS -DMS_WIN64"
1005 # Note that "python -m threading" cannot be used to check for
1006 # threading support due to a bug in Python 2.7.3
1007 # (http://bugs.python.org/issue15567).
1008 AC_MSG_CHECKING(whether python supports threads)
1009 saved_CPPFLAGS="${CPPFLAGS}"
1010 CPPFLAGS="${PYTHON_CPPFLAGS}"
1011 # Note that the test is reversed so that python_has_threads=yes on
1012 # unexpected failures.
1013 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1018 ]]), [python_has_threads=no], [python_has_threads=yes])
1019 AC_MSG_RESULT(${python_has_threads})
1020 CPPFLAGS="${saved_CPPFLAGS}"
1022 # Even if Python support is not compiled in, we need to have this file
1023 # included so that the "python" command, et.al., still exists.
1024 CONFIG_OBS="$CONFIG_OBS python.o"
1025 CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1027 AC_SUBST(PYTHON_CFLAGS)
1028 AC_SUBST(PYTHON_CPPFLAGS)
1029 AC_SUBST(PYTHON_LIBS)
1030 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
1032 # -------------------- #
1033 # Check for libguile. #
1034 # -------------------- #
1036 dnl Utility to simplify finding libguile.
1037 dnl $1 = pkg-config-program
1038 dnl $2 = space-separate list of guile versions to try
1039 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1040 dnl $4 = the shell variable to assign the result to
1041 dnl If libguile is found we store "yes" here.
1043 AC_DEFUN([AC_TRY_LIBGUILE],
1046 guile_version_list=$2
1048 define([have_libguile_var],$4)
1049 found_usable_guile=checking
1050 AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1051 for guile_version in ${guile_version_list}; do
1052 ${pkg_config} --exists ${guile_version} 2>/dev/null
1053 if test $? != 0; then
1056 dnl pkg-config says the package exists, so if we get an error now,
1058 new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1059 if test $? != 0; then
1060 AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1062 new_LIBS=`${pkg_config} --libs ${guile_version}`
1063 if test $? != 0; then
1064 AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1066 dnl If we get this far, great.
1067 found_usable_guile=${guile_version}
1070 if test "${found_usable_guile}" = "checking"; then
1071 if test "${flag_errors}" = "yes"; then
1072 AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1074 found_usable_guile=no
1077 dnl One final sanity check.
1078 dnl The user could have said --with-guile=python-2.7.
1079 if test "${found_usable_guile}" != no; then
1080 save_CPPFLAGS=$CPPFLAGS
1082 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1083 LIBS="$LIBS $new_LIBS"
1084 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "libguile.h"]],
1085 [[scm_init_guile ();]]),
1086 [have_libguile_var=yes
1087 GUILE_CPPFLAGS=$new_CPPFLAGS
1088 GUILE_LIBS=$new_LIBS],
1089 [found_usable_guile=no])
1090 dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1091 AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1092 AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1093 [Define if Guile supports manual finalization.])
1095 CPPFLAGS=$save_CPPFLAGS
1097 if test "${found_usable_guile}" = no; then
1098 if test "${flag_errors}" = yes; then
1099 AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1103 AC_MSG_RESULT([${found_usable_guile}])
1106 dnl There are several different values for --with-guile:
1108 dnl no - Don't include guile support.
1109 dnl yes - Include guile support, error if it's missing.
1110 dnl The pkg-config program must be in $PATH.
1111 dnl auto - Same as "yes", but if guile is missing from the system,
1112 dnl fall back to "no".
1113 dnl guile-version [guile-version-choice-2 ...] -
1114 dnl A space-separated list of guile package versions to try.
1115 dnl These are passed to pkg-config as-is.
1116 dnl E.g., guile-2.0 or guile-2.2-uninstalled
1117 dnl This requires making sure PKG_CONFIG_PATH is set appropriately.
1118 dnl /path/to/pkg-config -
1119 dnl Use this pkg-config program.
1120 dnl NOTE: This needn't be the "real" pkg-config program.
1121 dnl It could be a shell script. It is invoked as:
1122 dnl pkg-config --exists $version
1123 dnl pkg-config --cflags $version
1124 dnl pkg-config --libs $version
1125 dnl pkg-config --variable guild $version
1126 dnl The script will be called with $version having each value in
1127 dnl $try_guile_versions until --exists indicates success.
1130 AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1131 [], [with_guile=auto])
1132 AC_MSG_CHECKING([whether to use guile])
1133 AC_MSG_RESULT([$with_guile])
1135 dnl We check guile with pkg-config.
1136 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1138 try_guile_versions="guile-2.2 guile-2.0"
1140 case "${with_guile}" in
1142 AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1145 if test "${pkg_config_prog_path}" = "missing"; then
1146 AC_MSG_WARN([pkg-config not found, guile support disabled])
1148 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1152 if test "${pkg_config_prog_path}" = "missing"; then
1153 AC_MSG_ERROR([pkg-config not found])
1155 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1157 [[\\/]]* | ?:[[\\/]]*)
1158 if test -x "${with_guile}"; then
1159 AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1161 AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1165 # Disallow --with=guile="" and --with-guile=foo/bar.
1166 AC_MSG_ERROR([invalid value for --with-guile])
1169 # A space separate list of guile versions to try, in order.
1170 if test "${pkg_config_prog_path}" = "missing"; then
1171 AC_MSG_ERROR([pkg-config not found])
1173 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1177 if test "${have_libguile}" != no; then
1178 dnl Get the name of the 'guild' program.
1179 case "${with_guile}" in
1180 [[\\/]]* | ?:[[\\/]]*)
1181 GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1184 GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1188 dnl Make sure guild can handle this host.
1189 GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1190 dnl If not, disable guile support.
1191 if test "$ac_cv_guild_ok" = no; then
1193 AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1197 if test "${have_libguile}" != no; then
1198 AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1199 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1200 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1201 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1202 CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1203 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1205 dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1207 save_CPPFLAGS="$CPPFLAGS"
1209 CPPFLAGS="$GUILE_CPPFLAGS"
1210 AC_CHECK_FUNCS([scm_new_smob])
1212 CPPFLAGS="$save_CPPFLAGS"
1214 # Even if Guile support is not compiled in, we need to have these files
1216 CONFIG_OBS="$CONFIG_OBS guile.o"
1217 CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1219 AC_SUBST(GUILE_CPPFLAGS)
1220 AC_SUBST(GUILE_LIBS)
1221 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1223 # --------------------- #
1224 # Check for libmcheck. #
1225 # --------------------- #
1227 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1228 # but turn it off if Python is enabled with threads, since -lmcheck is
1229 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1231 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1232 && $development; then
1233 libmcheck_default=yes
1235 libmcheck_default=no
1237 GDB_AC_LIBMCHECK(${libmcheck_default})
1239 if test "$ENABLE_LIBMCHECK" = "yes" \
1240 -a "${have_libpython}" != "no" \
1241 -a "${python_has_threads}" = "yes" ; then
1242 AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1245 AC_ARG_WITH(intel_pt,
1246 AS_HELP_STRING([--with-intel-pt], [include Intel(R) Processor Trace support (auto/yes/no)]),
1247 [], [with_intel_pt=auto])
1248 AC_MSG_CHECKING([whether to use intel pt])
1249 AC_MSG_RESULT([$with_intel_pt])
1251 if test "${with_intel_pt}" = no; then
1252 AC_MSG_WARN([Intel(R) Processor Trace support disabled; some features may be unavailable.])
1255 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1256 #include <linux/perf_event.h>
1257 #ifndef PERF_ATTR_SIZE_VER5
1260 ]]), [perf_event=yes], [perf_event=no])
1261 if test "$perf_event" != yes; then
1262 if test "$with_intel_pt" = yes; then
1263 AC_MSG_ERROR([linux/perf_event.h missing or too old])
1265 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
1269 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
1270 if test "$HAVE_LIBIPT" != yes; then
1271 if test "$with_intel_pt" = yes; then
1272 AC_MSG_ERROR([libipt is missing or unusable])
1274 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
1279 # ------------------------- #
1280 # Checks for header files. #
1281 # ------------------------- #
1284 # elf_hp.h is for HP/UX 64-bit shared library support.
1285 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1288 sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1289 sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1290 sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1291 termios.h termio.h \
1294 AC_CHECK_HEADERS(sys/proc.h, [], [],
1295 [#if HAVE_SYS_PARAM_H
1296 # include <sys/param.h>
1299 AC_CHECK_HEADERS(sys/user.h, [], [],
1300 [#if HAVE_SYS_PARAM_H
1301 # include <sys/param.h>
1305 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
1306 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
1307 # think that we don't have <curses.h> if we're using GCC.
1310 if test "$GCC" = yes; then
1311 AC_DEFINE(_MSE_INT_H, 1,
1312 [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
1313 Solaris 2.[789] when using GCC. ])
1316 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
1317 AC_CHECK_HEADERS(term.h, [], [],
1319 # include <curses.h>
1323 # ------------------------- #
1324 # Checks for declarations. #
1325 # ------------------------- #
1329 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1332 # ----------------------- #
1333 # Checks for structures. #
1334 # ----------------------- #
1336 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1338 # ------------------ #
1339 # Checks for types. #
1340 # ------------------ #
1343 AC_CHECK_TYPES(socklen_t, [], [],
1344 [#include <sys/types.h>
1345 #include <sys/socket.h>
1348 # ------------------------------------- #
1349 # Checks for compiler characteristics. #
1350 # ------------------------------------- #
1356 # ------------------------------ #
1357 # Checks for library functions. #
1358 # ------------------------------ #
1362 AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
1363 pipe poll pread pread64 pwrite resize_term \
1364 sbrk setpgid setpgrp setsid \
1365 sigaction sigprocmask sigsetmask socketpair \
1366 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1367 setrlimit getrlimit posix_madvise waitpid \
1368 ptrace64 sigaltstack mkdtemp setns])
1372 # Check the return and argument types of ptrace.
1375 dnl AC_FUNC_SETPGRP does not work when cross compiling
1376 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1377 if test "$cross_compiling" = no; then
1380 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1384 if (setpgrp(1,1) == -1)
1388 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1389 if test $ac_cv_func_setpgrp_void = yes; then
1390 AC_DEFINE(SETPGRP_VOID, 1)
1394 # Assume we'll default to using the included libiberty regex.
1395 gdb_use_included_regex=yes
1397 # However, if the system regex is GNU regex, then default to *not*
1398 # using the included regex.
1401 [gdb_cv_have_gnu_regex],
1403 [#include <gnu-versions.h>],
1404 [#define REGEX_INTERFACE_VERSION 1
1405 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1406 # error "Version mismatch"
1408 gdb_cv_have_gnu_regex=yes,
1409 gdb_cv_have_gnu_regex=no)])
1410 if test $gdb_cv_have_gnu_regex = yes; then
1411 gdb_use_included_regex=no
1414 AC_ARG_WITH(included-regex,
1415 AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1416 gdb_with_regex=$withval,
1417 gdb_with_regex=$gdb_use_included_regex)
1418 if test "$gdb_with_regex" = yes; then
1419 AC_DEFINE(USE_INCLUDED_REGEX, 1,
1420 [Define to 1 if the regex included in libiberty should be used.])
1423 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1424 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1425 [#include <sys/param.h>
1426 #include <sys/proc.h>
1429 # See if <sys/lwp.h> defines `struct lwp`.
1430 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1431 [AC_TRY_COMPILE([#include <sys/param.h>
1432 #include <sys/lwp.h>], [struct lwp l;],
1433 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1434 if test $gdb_cv_struct_lwp = yes; then
1435 AC_DEFINE(HAVE_STRUCT_LWP, 1,
1436 [Define to 1 if your system has struct lwp.])
1439 # See if <machine/reg.h> degines `struct reg'.
1440 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1441 [AC_TRY_COMPILE([#include <sys/types.h>
1442 #include <machine/reg.h>], [struct reg r;],
1443 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1444 if test $gdb_cv_struct_reg = yes; then
1445 AC_DEFINE(HAVE_STRUCT_REG, 1,
1446 [Define to 1 if your system has struct reg in <machine/reg.h>.])
1449 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1450 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1451 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1452 [#include <machine/reg.h>])
1454 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1455 # Older amd64 Linux's don't have the fs_base and gs_base members of
1456 # `struct user_regs_struct'.
1457 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1458 [], [], [#include <sys/user.h>])
1460 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1461 AC_MSG_CHECKING(for PTRACE_GETREGS)
1462 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1463 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1465 [gdb_cv_have_ptrace_getregs=yes],
1466 [gdb_cv_have_ptrace_getregs=no])])
1467 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1468 if test $gdb_cv_have_ptrace_getregs = yes; then
1469 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1470 [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1473 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1474 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1475 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1476 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1477 [PTRACE_GETFPXREGS;],
1478 [gdb_cv_have_ptrace_getfpxregs=yes],
1479 [gdb_cv_have_ptrace_getfpxregs=no])])
1480 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1481 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1482 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1483 [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1486 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1487 AC_MSG_CHECKING(for PT_GETDBREGS)
1488 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1489 [AC_TRY_COMPILE([#include <sys/types.h>
1490 #include <sys/ptrace.h>],
1492 [gdb_cv_have_pt_getdbregs=yes],
1493 [gdb_cv_have_pt_getdbregs=no])])
1494 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1495 if test $gdb_cv_have_pt_getdbregs = yes; then
1496 AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1497 [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1500 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1501 AC_MSG_CHECKING(for PT_GETXMMREGS)
1502 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1503 [AC_TRY_COMPILE([#include <sys/types.h>
1504 #include <sys/ptrace.h>],
1506 [gdb_cv_have_pt_getxmmregs=yes],
1507 [gdb_cv_have_pt_getxmmregs=no])])
1508 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1509 if test $gdb_cv_have_pt_getxmmregs = yes; then
1510 AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1511 [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1514 # Detect which type of /proc is in use, such as for Solaris.
1516 if test "${target}" = "${host}"; then
1518 *-*-sysv4.2* | *-*-sysv5* )
1519 AC_DEFINE(NEW_PROC_API, 1,
1520 [Define if you want to use new multi-fd /proc interface.])
1522 *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1523 AC_DEFINE(NEW_PROC_API, 1,
1524 [Define if you want to use new multi-fd /proc interface.])
1527 # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1528 AC_DEFINE([_KMEMUSER], 1,
1529 [Define to 1 so <sys/proc.h> gets a definition of anon_hdl. Works
1530 around a <sys/proc.h> problem on IRIX 5.])
1535 if test "$ac_cv_header_sys_procfs_h" = yes; then
1536 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1537 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1538 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1539 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1540 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1541 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1542 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1543 BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1544 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1545 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1546 BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1549 dnl Check for broken prfpregset_t type
1551 dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1552 dnl prfpregset_t type (it's a typedef for the pointer to a struct
1553 dnl instead of the struct itself). We detect this here, and work
1554 dnl around it in gdb_proc_service.h.
1556 if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1557 AC_MSG_CHECKING(whether prfpregset_t type is broken)
1558 AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1559 [AC_TRY_RUN([#include <sys/procfs.h>
1562 if (sizeof (prfpregset_t) == sizeof (void *))
1566 gdb_cv_prfpregset_t_broken=no,
1567 gdb_cv_prfpregset_t_broken=yes,
1568 gdb_cv_prfpregset_t_broken=yes)])
1569 AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1570 if test $gdb_cv_prfpregset_t_broken = yes; then
1571 AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1572 [Define if the prfpregset_t type is broken.])
1577 # Check if the compiler supports the `long long' type.
1579 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1580 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1581 [[extern long long foo;]],
1582 [[switch (foo & 2) { case 0: return 1; }]])],
1583 gdb_cv_c_long_long=yes,
1584 gdb_cv_c_long_long=no)])
1585 if test $gdb_cv_c_long_long != yes; then
1586 # libdecnumber requires long long.
1587 AC_MSG_ERROR([Compiler must support long long for GDB.])
1590 # Check if the compiler and runtime support printing long longs.
1592 AC_CACHE_CHECK([for long long support in printf],
1593 gdb_cv_printf_has_long_long,
1594 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1597 l = (l << 16) + 0x0123;
1598 l = (l << 16) + 0x4567;
1599 l = (l << 16) + 0x89ab;
1600 l = (l << 16) + 0xcdef;
1601 sprintf (buf, "0x%016llx", l);
1602 return (strcmp ("0x0123456789abcdef", buf));]])],
1603 gdb_cv_printf_has_long_long=yes,
1604 gdb_cv_printf_has_long_long=no,
1605 gdb_cv_printf_has_long_long=no)])
1606 if test $gdb_cv_printf_has_long_long = yes; then
1607 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1608 [Define to 1 if the "%ll" format works to print long longs.])
1611 # Check if the compiler and runtime support printing decfloats.
1613 AC_CACHE_CHECK([for decfloat support in printf],
1614 gdb_cv_printf_has_decfloat,
1615 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1617 _Decimal32 d32 = 1.2345df;
1618 _Decimal64 d64 = 1.2345dd;
1619 _Decimal128 d128 = 1.2345dl;
1620 sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1621 return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1622 gdb_cv_printf_has_decfloat=yes,
1623 gdb_cv_printf_has_decfloat=no,
1624 gdb_cv_printf_has_decfloat=no)])
1625 if test $gdb_cv_printf_has_decfloat = yes; then
1626 AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1627 [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1630 # Check if the compiler supports the `long double' type. We can't use
1631 # AC_C_LONG_DOUBLE because that one does additional checks on the
1632 # constants defined in <float.h> that fail on some systems,
1633 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1635 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1636 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1637 gdb_cv_c_long_double=yes,
1638 gdb_cv_c_long_double=no)])
1639 if test $gdb_cv_c_long_double = yes; then
1640 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1641 [Define to 1 if the compiler supports long double.])
1644 # Check if the compiler and runtime support printing long doubles.
1646 AC_CACHE_CHECK([for long double support in printf],
1647 gdb_cv_printf_has_long_double,
1648 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1650 long double f = 3.141592653;
1651 sprintf (buf, "%Lg", f);
1652 return (strncmp ("3.14159", buf, 7));]])],
1653 gdb_cv_printf_has_long_double=yes,
1654 gdb_cv_printf_has_long_double=no,
1655 gdb_cv_printf_has_long_double=no)])
1656 if test $gdb_cv_printf_has_long_double = yes; then
1657 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1658 [Define to 1 if the "%Lg" format works to print long doubles.])
1661 # Check if the compiler and runtime support scanning long doubles.
1663 AC_CACHE_CHECK([for long double support in scanf],
1664 gdb_cv_scanf_has_long_double,
1665 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1666 [[#include <stdio.h>]],
1667 [[char *buf = "3.141592653";
1669 sscanf (buf, "%Lg", &f);
1670 return !(f > 3.14159 && f < 3.14160);]])],
1671 gdb_cv_scanf_has_long_double=yes,
1672 gdb_cv_scanf_has_long_double=no,
1673 gdb_cv_scanf_has_long_double=no)])
1674 if test $gdb_cv_scanf_has_long_double = yes; then
1675 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1676 [Define to 1 if the "%Lg" format works to scan long doubles.])
1681 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1682 SAVE_LDFLAGS=$LDFLAGS
1685 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1686 *) gdb_cv_bigtoc=-bbigtoc ;;
1689 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1690 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1691 LDFLAGS="${SAVE_LDFLAGS}"
1693 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1697 AC_MSG_CHECKING(for the dynamic export flag)
1699 if test "${gdb_native}" = yes; then
1700 # The dynamically loaded libthread_db needs access to symbols in the gdb
1701 # executable. Older GNU ld supports --export-dynamic but --dynamic-list
1702 # may not be supported there.
1703 old_LDFLAGS="$LDFLAGS"
1704 # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1705 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1706 LDFLAGS="$LDFLAGS $RDYNAMIC"
1707 if test "${have_libpython}" = no; then
1708 AC_TRY_LINK([], [], [dynamic_list=true])
1710 # Workaround http://bugs.python.org/issue4434 where static
1711 # libpythonX.Y.a would get its symbols required for
1712 # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1713 # Problem does not happen for the recommended libpythonX.Y.so linkage.
1714 old_CFLAGS="$CFLAGS"
1715 CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1717 LIBS="$LIBS $PYTHON_LIBS"
1720 [#include "]${have_libpython}[/Python.h"],
1723 err = PyRun_SimpleString ("import itertools\n");
1725 return err == 0 ? 0 : 1;]),
1726 [dynamic_list=true], [], [true])
1728 CFLAGS="$old_CFLAGS"
1730 LDFLAGS="$old_LDFLAGS"
1732 if $dynamic_list; then
1733 found="-Wl,--dynamic-list"
1734 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1737 RDYNAMIC="-rdynamic"
1740 AC_MSG_RESULT($found)
1742 dnl For certain native configurations, we need to check whether thread
1743 dnl support can be built in or not.
1745 dnl Note that we only want this if we are both native (host == target),
1746 dnl and not doing a canadian cross build (build == host).
1748 if test ${build} = ${host} -a ${host} = ${target} ; then
1751 # See if thread_db library is around for Solaris thread debugging.
1752 # Note that we must explicitly test for version 1 of the library
1753 # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1755 AC_MSG_CHECKING(for Solaris thread debugging library)
1756 if test -f /usr/lib/libthread_db.so.1 ; then
1758 AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1759 [Define if using Solaris thread debugging.])
1760 CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1761 CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1762 AC_CHECK_LIB(dl, dlopen)
1763 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1764 # Sun randomly tweaked the prototypes in <proc_service.h>
1766 AC_MSG_CHECKING(if <proc_service.h> is old)
1767 AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1769 #include <proc_service.h>
1771 (struct ps_prochandle*, psaddr_t, const void*, size_t);
1772 ],, gdb_cv_proc_service_is_old=no,
1773 gdb_cv_proc_service_is_old=yes)
1775 AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1776 if test $gdb_cv_proc_service_is_old = yes; then
1777 AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1778 [Define if <proc_service.h> on solaris uses int instead of
1779 size_t, and assorted other type changes.])
1786 AC_MSG_CHECKING(for AiX thread debugging library)
1787 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1788 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1789 [#ifndef PTHDB_VERSION_3
1792 gdb_cv_have_aix_thread_debug=yes,
1793 gdb_cv_have_aix_thread_debug=no)])
1794 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1795 if test $gdb_cv_have_aix_thread_debug = yes; then
1796 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1797 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1798 LIBS="$LIBS -lpthdebug"
1800 # Older versions of AIX do not provide the declaration for
1801 # the getthrds function (it appears that it was introduced
1803 AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1807 AC_SUBST(CONFIG_LDFLAGS)
1810 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1811 dnl other error codes.
1812 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1813 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1814 gdb_cv_thread_db_h_has_td_notalloc,
1816 [#include <thread_db.h>],
1817 [int i = TD_NOTALLOC;],
1818 gdb_cv_thread_db_h_has_td_notalloc=yes,
1819 gdb_cv_thread_db_h_has_td_notalloc=no
1822 AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1823 gdb_cv_thread_db_h_has_td_version,
1825 [#include <thread_db.h>],
1826 [int i = TD_VERSION;],
1827 gdb_cv_thread_db_h_has_td_version=yes,
1828 gdb_cv_thread_db_h_has_td_version=no
1831 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1832 gdb_cv_thread_db_h_has_td_notls,
1834 [#include <thread_db.h>],
1835 [int i = TD_NOTLS;],
1836 gdb_cv_thread_db_h_has_td_notls=yes,
1837 gdb_cv_thread_db_h_has_td_notls=no
1841 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1842 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1843 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1845 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1846 AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1847 [Define if <thread_db.h> has the TD_VERSION error code.])
1849 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1850 AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1851 [Define if <thread_db.h> has the TD_NOTLS error code.])
1854 dnl See if we have a sys/syscall header file that has __NR_tkill.
1855 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1856 AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1857 gdb_cv_sys_syscall_h_has_tkill,
1859 [#include <sys/syscall.h>],
1860 [int i = __NR_tkill;],
1861 gdb_cv_sys_syscall_h_has_tkill=yes,
1862 gdb_cv_sys_syscall_h_has_tkill=no
1866 dnl See if we can issue tkill syscall.
1867 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes"; then
1868 AC_CHECK_FUNC(syscall,
1869 AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1873 dnl Check if we can disable the virtual address space randomization.
1874 dnl The functionality of setarch -R.
1875 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1876 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1877 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
1878 # define ADDR_NO_RANDOMIZE 0x0040000
1880 /* Test the flag could be set and stays set. */
1881 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1882 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1884 AC_RUN_IFELSE([PERSONALITY_TEST],
1885 [have_personality=true],
1886 [have_personality=false],
1887 [AC_LINK_IFELSE([PERSONALITY_TEST],
1888 [have_personality=true],
1889 [have_personality=false])])
1890 if $have_personality
1892 AC_DEFINE([HAVE_PERSONALITY], 1,
1893 [Define if you support the personality syscall.])
1896 dnl Set the host's .gdbinit filename.
1905 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1907 dnl Handle optional features that can be enabled.
1909 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1910 # except that the argument to --with-sysroot is optional.
1911 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1912 if test "x$with_sysroot" = xyes; then
1913 with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1915 AC_ARG_WITH(sysroot,
1916 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1917 [search for usr/lib et al within DIR]),
1918 [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1919 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1920 [search for usr/lib et al within DIR])
1921 AC_SUBST(TARGET_SYSTEM_ROOT)
1922 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1924 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1925 [automatically load a system-wide gdbinit file],
1928 AC_ARG_ENABLE(werror,
1929 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
1930 [case "${enableval}" in
1931 yes | y) ERROR_ON_WARNING="yes" ;;
1932 no | n) ERROR_ON_WARNING="no" ;;
1933 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1936 # Enable -Werror by default when using gcc in C mode. Leave it off
1937 # for C++ until we're warning clean. Turn it off for releases.
1938 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" \
1939 && test x"$enable_build_with_cxx" != x"yes" \
1940 && $development; then
1941 ERROR_ON_WARNING=yes
1945 if test "${ERROR_ON_WARNING}" = yes ; then
1946 WERROR_CFLAGS="-Werror"
1949 # These options work in either C or C++ modes.
1950 build_warnings="-Wall -Wpointer-arith \
1951 -Wno-unused -Wunused-value -Wunused-function \
1952 -Wno-switch -Wno-char-subscripts \
1955 # Now add in C and C++ specific options, depending on mode.
1956 if test "$enable_build_with_cxx" = "yes"; then
1957 build_warnings="$build_warnings -Wno-sign-compare -Wno-write-strings \
1960 build_warnings="$build_warnings -Wpointer-sign -Wmissing-prototypes \
1961 -Wdeclaration-after-statement -Wmissing-parameter-type \
1962 -Wold-style-declaration -Wold-style-definition"
1965 # Enable -Wno-format by default when using gcc on mingw since many
1966 # GCC versions complain about %I64.
1968 *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
1969 *) build_warnings="$build_warnings -Wformat-nonliteral" ;;
1972 AC_ARG_ENABLE(build-warnings,
1973 AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]),
1974 [case "${enableval}" in
1976 no) build_warnings="-w";;
1977 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1978 build_warnings="${build_warnings} ${t}";;
1979 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1980 build_warnings="${t} ${build_warnings}";;
1981 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1983 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1984 echo "Setting compiler warning flags = $build_warnings" 6>&1
1986 AC_ARG_ENABLE(gdb-build-warnings,
1987 AS_HELP_STRING([--enable-gdb-build-warnings], [enable GDB specific build-time compiler warnings if gcc is used]),
1988 [case "${enableval}" in
1990 no) build_warnings="-w";;
1991 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1992 build_warnings="${build_warnings} ${t}";;
1993 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1994 build_warnings="${t} ${build_warnings}";;
1995 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1997 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1998 echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
2001 # The set of warnings supported by a C++ compiler is not the same as
2002 # of the C compiler.
2003 if test "$enable_build_with_cxx" = "yes"; then
2008 if test "x${build_warnings}" != x -a "x$GCC" = xyes
2010 AC_MSG_CHECKING(compiler warning flags)
2011 # Separate out the -Werror flag as some files just cannot be
2012 # compiled with it enabled.
2013 for w in ${build_warnings}; do
2015 -Werr*) WERROR_CFLAGS=-Werror ;;
2017 # Check whether GCC accepts it.
2018 saved_CFLAGS="$CFLAGS"
2020 saved_CXXFLAGS="$CXXFLAGS"
2021 CXXFLAGS="$CXXFLAGS $w"
2022 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
2023 CFLAGS="$saved_CFLAGS"
2024 CXXFLAGS="$saved_CXXFLAGS"
2027 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
2029 AC_SUBST(WARN_CFLAGS)
2030 AC_SUBST(WERROR_CFLAGS)
2032 if test "$enable_build_with_cxx" = "yes"; then
2036 # In the Cygwin environment, we need some additional flags.
2037 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
2038 [AC_EGREP_CPP(^lose$, [
2039 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
2041 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
2044 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
2045 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
2047 *go32* ) SER_HARDWIRE=ser-go32.o ;;
2048 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
2049 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
2051 AC_SUBST(SER_HARDWIRE)
2053 # libreadline needs libuser32.a in a cygwin environment
2055 if test x$gdb_cv_os_cygwin = xyes; then
2056 WIN32LIBS="-luser32"
2058 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
2063 # The ser-tcp.c module requires sockets.
2066 AC_DEFINE(USE_WIN32API, 1,
2067 [Define if we should use the Windows API, instead of the
2068 POSIX API. On Windows, we use the Windows API when
2069 building for MinGW, but the POSIX API when building
2071 WIN32LIBS="$WIN32LIBS -lws2_32"
2076 # Add ELF support to GDB, but only if BFD includes ELF support.
2077 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
2078 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
2079 if test $gdb_cv_var_elf = yes; then
2080 CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
2081 AC_DEFINE(HAVE_ELF, 1,
2082 [Define if ELF support should be included.])
2083 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
2084 if test "$plugins" = "yes"; then
2085 AC_SEARCH_LIBS(dlopen, dl)
2089 # Add macho support to GDB, but only if BFD includes it.
2090 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
2091 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
2092 if test $gdb_cv_var_macho = yes; then
2093 CONFIG_OBS="$CONFIG_OBS machoread.o"
2096 # Add any host-specific objects to GDB.
2097 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
2099 # If building on ELF, look for lzma support for embedded compressed debug info.
2100 if test $gdb_cv_var_elf = yes; then
2102 AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
2103 [], [with_lzma=auto])
2104 AC_MSG_CHECKING([whether to use lzma])
2105 AC_MSG_RESULT([$with_lzma])
2107 if test "${with_lzma}" != no; then
2108 AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
2109 [lzma_index_iter iter;
2110 lzma_index_iter_init (&iter, 0);
2111 lzma_mf_is_supported (LZMA_MF_HC3);])
2112 if test "$HAVE_LIBLZMA" != yes; then
2113 if test "$with_lzma" = yes; then
2114 AC_MSG_ERROR([missing liblzma for --with-lzma])
2120 LIBGUI="../libgui/src/libgui.a"
2121 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
2123 AC_SUBST(GUI_CFLAGS_X)
2127 AC_SUBST(WIN32LDAPP)
2130 *-*-cygwin* | *-*-mingw* )
2139 if test "${enable_gdbtk}" = "yes"; then
2141 # Gdbtk must have an absolute path to srcdir in order to run
2142 # properly when not installed.
2150 # If $no_tk is nonempty, then we can't do Tk, and there is no
2151 # point to doing Tcl.
2154 if test -z "${no_tcl}" -a -z "${no_tk}"; then
2157 # Check for in-tree tcl
2164 if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2168 # Find Tcl private headers
2169 if test x"${intree}" = xno; then
2170 CY_AC_TCL_PRIVATE_HEADERS
2171 TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2172 TCL_LIBRARY="${TCL_LIB_SPEC}"
2175 # If building tcl in the same src tree, private headers
2176 # are not needed, but we need to be sure to use the right
2178 TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2179 TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2180 TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2182 AC_SUBST(TCL_INCLUDE)
2183 AC_SUBST(TCL_LIBRARY)
2188 # Check for in-tree Tk
2190 if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2194 # Find Tk private headers
2195 if test x"${intree}" = xno; then
2196 CY_AC_TK_PRIVATE_HEADERS
2197 TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2198 TK_LIBRARY=${TK_LIB_SPEC}
2201 TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2202 TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2203 TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2205 AC_SUBST(TK_INCLUDE)
2206 AC_SUBST(TK_LIBRARY)
2208 AC_SUBST(TK_XINCLUDES)
2210 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2212 # Include some libraries that Tcl and Tk want.
2213 TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2214 # Yes, the ordering seems wrong here. But it isn't.
2215 # TK_LIBS is the list of libraries that need to be linked
2216 # after Tcl/Tk. Note that this isn't put into LIBS. If it
2217 # were in LIBS then any link tests after this point would
2218 # try to include things like `$(LIBGUI)', which wouldn't work.
2219 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2221 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2222 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2223 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2224 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2225 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2226 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2227 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2229 if test x$gdb_cv_os_cygwin = xyes; then
2230 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2231 WIN32LDAPP="-Wl,--subsystem,console"
2232 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2235 AC_CONFIG_SUBDIRS(gdbtk)
2243 AC_SUBST(GDBTK_CFLAGS)
2244 AC_SUBST(GDBTK_SRC_DIR)
2248 # Unlike the sim directory, whether a simulator is linked is controlled by
2249 # presence of a gdb_sim definition in the target configure.tgt entry.
2250 # This code just checks for a few cases where we'd like to ignore those
2251 # definitions, even when they're present in the '.mt' file. These cases
2252 # are when --disable-sim is specified, or if the simulator directory is
2253 # not part of the source tree.
2256 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2257 [echo "enable_sim = $enable_sim";
2258 echo "enableval = ${enableval}";
2259 case "${enableval}" in
2260 yes) ignore_sim=false ;;
2261 no) ignore_sim=true ;;
2262 *) ignore_sim=false ;;
2266 if test ! -d "${srcdir}/../sim"; then
2272 if test "${ignore_sim}" = "false"; then
2273 if test x"${gdb_sim}" != x ; then
2275 SIM_OBS="remote-sim.o"
2276 AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2282 AC_SUBST(ENABLE_CFLAGS)
2283 AC_SUBST(PROFILE_CFLAGS)
2285 AC_SUBST(CONFIG_OBS)
2286 AC_SUBST(CONFIG_DEPS)
2287 AC_SUBST(CONFIG_SRCS)
2288 AC_SUBST(CONFIG_ALL)
2289 AC_SUBST(CONFIG_CLEAN)
2290 AC_SUBST(CONFIG_INSTALL)
2291 AC_SUBST(CONFIG_UNINSTALL)
2293 # List of host floatformats.
2294 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2295 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2296 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2298 # target_subdir is used by the testsuite to find the target libraries.
2300 if test "${host}" != "${target}"; then
2301 target_subdir="${target_alias}/"
2303 AC_SUBST(target_subdir)
2306 if test "${gdb_native}" = "yes"; then
2307 host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2308 if test ! -f ${host_makefile_frag}; then
2309 AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2311 frags="$frags $host_makefile_frag"
2313 host_makefile_frag=/dev/null
2316 AC_SUBST_FILE(host_makefile_frag)
2320 if test "${gdb_native}" = "yes"; then
2321 # We pick this up from the host configuration file (.mh) because we
2322 # do not have a native configuration Makefile fragment.
2323 nativefile=`sed -n '
2324 s/NAT_FILE[ ]*=[ ]*\([^ ]*\)/\1/p
2325 ' ${host_makefile_frag}`
2329 if test x"${gdb_osabi}" != x ; then
2330 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2331 [Define to the default OS ABI for this configuration.])
2334 # Enable multi-ice-gdb-server.
2335 AC_ARG_ENABLE(multi-ice,
2336 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2340 *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2342 if test "x$enable_multi_ice" = xyes; then
2343 AC_CONFIG_SUBDIRS(multi-ice)
2346 AC_ARG_ENABLE(gdbserver,
2347 AS_HELP_STRING([--enable-gdbserver],
2348 [automatically build gdbserver (yes/no/auto, default is auto)]),
2349 [case "${enableval}" in
2351 *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2352 esac],[enable_gdbserver=auto])
2354 # We only build gdbserver automatically in a native configuration, and
2355 # only if the user did not explicitly disable its build.
2356 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2357 AC_MSG_CHECKING(whether gdbserver is supported on this host)
2358 if test "x$build_gdbserver" = xyes; then
2360 AC_CONFIG_SUBDIRS(gdbserver)
2361 gdbserver_build_enabled=yes
2367 # If the user explicitly request the gdbserver to be built, verify that
2368 # we were in fact able to enable it.
2369 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2370 AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2373 # Check for babeltrace and babeltrace-ctf
2374 AC_ARG_WITH(babeltrace,
2375 AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2376 [], [with_babeltrace=auto])
2377 AC_MSG_CHECKING([whether to use babeltrace])
2378 AC_MSG_RESULT([$with_babeltrace])
2380 if test "x$with_babeltrace" = "xno"; then
2381 AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2383 # Append -Werror to CFLAGS so that configure can catch the warning
2384 # "assignment from incompatible pointer type", which is related to
2385 # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
2386 # in GDB, while babeltrace 1.0.3 is broken.
2387 # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2388 # safe to save and restore CFLAGS here.
2389 saved_CFLAGS=$CFLAGS
2390 CFLAGS="$CFLAGS -Werror"
2391 AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2392 [#include <babeltrace/babeltrace.h>
2393 #include <babeltrace/ctf/events.h>
2394 #include <babeltrace/ctf/iterator.h>],
2395 [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2396 struct bt_ctf_event *event = NULL;
2397 const struct bt_definition *scope;
2399 bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2400 scope = bt_ctf_get_top_level_scope (event,
2401 BT_STREAM_EVENT_HEADER);
2402 bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2404 CFLAGS=$saved_CFLAGS
2406 if test "$HAVE_LIBBABELTRACE" != yes; then
2407 if test "$with_babeltrace" = yes; then
2408 AC_MSG_ERROR([babeltrace is missing or unusable])
2410 AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2415 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2416 # to an empty version.
2422 if test "${nativefile}" != ""; then
2423 case "${nativefile}" in
2424 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2425 * ) GDB_NM_FILE="${nativefile}"
2427 files="${files} ${GDB_NM_FILE}"
2428 links="${links} nm.h"
2429 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2431 AC_SUBST(GDB_NM_FILE)
2433 AC_LINK_FILES($files, $links)
2435 dnl Check for exe extension set on certain hosts (e.g. Win32)
2438 dnl Detect the character set used by this host.
2439 dnl At the moment, we just assume it's UTF-8.
2440 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2441 [Define to be a string naming the default host character set.])
2443 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2444 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2445 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2447 AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile,
2449 case x$CONFIG_HEADERS in
2450 xconfig.h:config.in)