1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright (C) 1995-2019 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.
22 AC_CONFIG_HEADER(config.h:config.in)
25 # Set the 'development' global.
26 . $srcdir/../bfd/development.sh
31 AC_USE_SYSTEM_EXTENSIONS
40 # We require a C++11 compiler. Check if one is available, and if
41 # necessary, set CXX_DIALECT to some -std=xxx switch.
42 AX_CXX_COMPILE_STDCXX(11, , mandatory)
44 # Dependency checking.
46 ZW_PROG_COMPILER_DEPENDENCIES([CC])
48 gnulib_extra_configure_args=
49 # If large-file support is disabled, make sure gnulib does the same.
50 if test "$enable_largefile" = no; then
51 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
54 # Configure gnulib. We need to build gnulib under some other
55 # directory not "gnulib", to avoid the problem of both GDB and
56 # GDBserver wanting to build it in the same directory, when building
58 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"],
59 ["$gnulib_extra_configure_args"])
61 dnl List of object files and targets accumulated by configure.
73 dnl Set up for gettext.
74 ZW_GNU_GETTEXT_SISTER_DIR
76 localedir='${datadir}/locale'
79 if test x"$USE_NLS" = xyes; then
80 CONFIG_ALL="$CONFIG_ALL all-po"
81 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
82 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
83 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
86 GNULIB=build-gnulib/import
88 # For Makefile dependencies.
90 if test x"$STDINT_H" != x; then
91 GNULIB_STDINT_H=$GNULIB/$STDINT_H
93 AC_SUBST(GNULIB_STDINT_H)
96 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
99 # We never need to detect it in this sub-configure.
100 # But preserve it for config.status --recheck.
102 [Parent configure detects if it is of sufficient version.])
103 AC_ARG_VAR(MAKEINFOFLAGS,
104 [Parameters for MAKEINFO.])
106 MAKEINFO_EXTRA_FLAGS=""
107 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
108 [echo '@clicksequence{a @click{} b}' >conftest.texinfo
109 if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
110 gdb_cv_have_makeinfo_click=yes
112 gdb_cv_have_makeinfo_click=no
114 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
115 MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
117 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
119 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
120 [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
123 # We can't pass paths as command line arguments.
124 # Mingw32 tries to be clever and will convert the paths for us.
125 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
126 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
127 # This breaks GDB's relocatable path conversions since paths passed in
128 # config.h would not get so translated, the path prefixes no longer match.
129 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
131 # GDB's datadir relocation
133 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
134 [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
137 AC_ARG_WITH(relocated-sources,
138 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
139 [reloc_srcdir="${withval}"
140 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
141 [Relocated directory for source files. ])
144 AC_MSG_CHECKING([for default auto-load directory])
145 AC_ARG_WITH(auto-load-dir,
146 AS_HELP_STRING([--with-auto-load-dir=PATH],
147 [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
148 [with_auto_load_dir='$debugdir:$datadir/auto-load'])
149 escape_dir=`echo $with_auto_load_dir | sed -e 's/[[$]]datadir\>/\\\\\\\\\\\\&/g' -e 's/[[$]]debugdir\>/\\\\\\\\\\\\&/g'`
150 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
151 [Directories from which to load auto-loaded scripts.])
152 AC_MSG_RESULT([$with_auto_load_dir])
154 AC_MSG_CHECKING([for default auto-load safe-path])
155 AC_ARG_WITH(auto-load-safe-path,
156 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
157 [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
158 AS_HELP_STRING([--without-auto-load-safe-path],
159 [do not restrict auto-loaded files locations]),
160 [if test "$with_auto_load_safe_path" = "no"; then
161 with_auto_load_safe_path="/"
163 [with_auto_load_safe_path="$with_auto_load_dir"])
164 escape_dir=`echo $with_auto_load_safe_path | sed -e 's/[[$]]datadir\>/\\\\\\\\\\\\&/g' -e 's/[[$]]debugdir\>/\\\\\\\\\\\\&/g'`
165 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
166 [Directories safe to hold auto-loaded files.])
167 AC_MSG_RESULT([$with_auto_load_safe_path])
169 AC_CONFIG_SUBDIRS(testsuite)
171 # Check whether to support alternative target configurations
172 AC_ARG_ENABLE(targets,
173 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
174 [case "${enableval}" in
175 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
177 no) enable_targets= ;;
178 *) enable_targets=$enableval ;;
181 # Check whether to enable 64-bit support on 32-bit hosts
182 AC_ARG_ENABLE(64-bit-bfd,
183 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
184 [case "${enableval}" in
187 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
188 esac],[want64=false])dnl
190 # Provide defaults for some variables set by the per-host and per-target
192 gdb_host_obs=posix-hdep.o
194 if test "${target}" = "${host}"; then
200 . $srcdir/configure.host
202 # Add in the common host objects.
203 . $srcdir/common/common.host
204 gdb_host_obs="$gdb_host_obs $common_host_obs"
206 # Accumulate some settings from configure.tgt over all enabled targets
210 HAVE_NATIVE_GCORE_TARGET=
212 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
214 if test "$targ_alias" = "all"; then
217 # Canonicalize the secondary target names.
218 result=`$ac_config_sub $targ_alias 2>/dev/null`
219 if test -n "$result"; then
225 . ${srcdir}/configure.tgt
227 AS_IF([test -z "${gdb_target_obs}"],
228 [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
230 # Target-specific object files
231 for i in ${gdb_target_obs}; do
232 case " $TARGET_OBS " in
235 TARGET_OBS="$TARGET_OBS ${i}"
240 # Check whether this target needs 64-bit CORE_ADDR
241 if test x${want64} = xfalse; then
242 . ${srcdir}/../bfd/config.bfd
245 # Check whether this target is native and supports gcore.
246 if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
247 && $gdb_have_gcore; then
248 HAVE_NATIVE_GCORE_TARGET=1
253 if test x${all_targets} = xtrue; then
255 # We want all 64-bit targets if we either:
256 # - run on a 64-bit host or
257 # - already require 64-bit support for some other target or
258 # - the --enable-64-bit-bfd option was supplied
259 # Otherwise we only support all 32-bit targets.
261 # NOTE: This test must be in sync with the corresponding
264 if test x${want64} = xfalse; then
265 AC_CHECK_SIZEOF(long)
266 if test "x${ac_cv_sizeof_long}" = "x8"; then
270 if test x${want64} = xtrue; then
271 TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
273 TARGET_OBS='$(ALL_TARGET_OBS)'
278 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
280 # For other settings, only the main target counts.
284 targ=$target; . ${srcdir}/configure.tgt
286 # Fetch the default architecture and default target vector from BFD.
287 targ=$target; . $srcdir/../bfd/config.bfd
289 # We only want the first architecture, so strip off the others if
290 # there is more than one.
291 targ_archs=`echo $targ_archs | sed 's/ .*//'`
293 if test "x$targ_archs" != x; then
294 AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
295 [Define to BFD's default architecture. ])
297 if test "x$targ_defvec" != x; then
298 AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
299 [Define to BFD's default target vector. ])
304 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
309 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
312 if test x"$enable_gdbmi" = xyes; then
313 if test -d $srcdir/mi; then
314 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
315 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
316 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
317 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
323 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
328 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
329 esac],enable_tui=auto)
333 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
338 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
340 [if test -d $srcdir/gdbtk; then
345 # We unconditionally disable gdbtk tests on selected platforms.
348 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
352 # Libunwind support for ia64.
354 AC_ARG_WITH(libunwind-ia64,
355 AS_HELP_STRING([--with-libunwind-ia64],
356 [use libunwind frame unwinding for ia64 targets]),,
357 [with_libunwind_ia64=auto])
359 # Backward compatibility option.
360 if test "${with_libunwind+set}" = set; then
361 if test x"$with_libunwind_ia64" != xauto; then
363 [option --with-libunwind is deprecated, use --with-libunwind-ia64])
365 AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
366 with_libunwind_ia64="$with_libunwind"
369 case "$with_libunwind_ia64" in
373 AC_CHECK_HEADERS(libunwind-ia64.h)
374 with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
378 [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
382 if test x"$with_libunwind_ia64" = xyes; then
383 AC_CHECK_HEADERS(libunwind-ia64.h)
384 if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
385 AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
387 CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
388 CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
389 CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
393 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
396 if test "$opt_curses" = "yes"; then
401 AC_ARG_ENABLE(profiling,
402 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
407 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
409 [enable_profiling=no])
411 AC_CHECK_FUNCS(monstartup _mcleanup)
412 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
417 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
418 if test $ac_cv_var__etext = yes; then
419 AC_DEFINE(HAVE__ETEXT, 1,
420 [Define to 1 if your system has the _etext variable. ])
422 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
427 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
428 if test $ac_cv_var_etext = yes; then
429 AC_DEFINE(HAVE_ETEXT, 1,
430 [Define to 1 if your system has the etext variable. ])
432 if test "$enable_profiling" = yes ; then
433 if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
434 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
438 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
440 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
441 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
442 ac_cv_cc_supports_pg=no)])
444 if test $ac_cv_cc_supports_pg = no; then
445 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
452 AC_ARG_ENABLE([codesign],
453 AS_HELP_STRING([--enable-codesign=CERT],
454 [sign gdb with 'codesign -s CERT']),
455 [CODESIGN_CERT=$enableval])
456 AC_SUBST([CODESIGN_CERT])
458 ACX_PKGVERSION([GDB])
459 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
460 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
461 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
463 # --------------------- #
464 # Checks for programs. #
465 # --------------------- #
473 AC_CHECK_TOOL(AR, ar)
474 AC_CHECK_TOOL(DLLTOOL, dlltool)
475 AC_CHECK_TOOL(WINDRES, windres)
479 # Needed for GNU Hurd hosts.
480 AC_CHECK_TOOL(MIG, mig)
481 if test x"$MIG" = x; then
482 AC_MSG_ERROR([MIG not found but required for $host hosts])
487 # ---------------------- #
488 # Checks for libraries. #
489 # ---------------------- #
491 # We might need to link with -lm; most simulators need it.
492 AC_CHECK_LIB(m, main)
494 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
495 AC_SEARCH_LIBS(gethostbyname, nsl)
497 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
498 AC_SEARCH_LIBS(socketpair, socket)
500 # Link in zlib if we can. This allows us to read compressed debug sections.
503 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
504 # On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
505 AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
506 [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
507 [Define to 1 if your system has the kinfo_getvmmap function. ])])
509 # fbsd-nat.c can also use kinfo_getfile.
510 AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd,
511 [AC_DEFINE(HAVE_KINFO_GETFILE, 1,
512 [Define to 1 if your system has the kinfo_getfile function. ])])
516 # GDB may fork/exec the iconv program to get the list of supported character
517 # sets. Allow the user to specify where to find it.
518 # There are several factors affecting the choice of option name:
519 # - There is already --with-libiconv-prefix but we can't use it, it specifies
520 # the build-time location of libiconv files.
521 # - The program we need to find is iconv, which comes with glibc. The user
522 # doesn't necessarily have libiconv installed. Therefore naming this
523 # --with-libiconv-foo feels wrong.
524 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
525 # defined to work on directories not files (though it really doesn't know
527 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
528 # with --with-libiconv-prefix.
529 # Putting these together is why the option name is --with-iconv-bin.
531 AC_ARG_WITH(iconv-bin,
532 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
533 [iconv_bin="${withval}"
534 AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
535 [Path of directory of iconv program.])
536 GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
539 # For the TUI, we need enhanced curses functionality.
540 if test x"$enable_tui" != xno; then
545 if test x"$prefer_curses" = xyes; then
546 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
547 # curses library because the latter might not provide all the
548 # functionality we need. However, this leads to problems on systems
549 # where the linker searches /usr/local/lib, but the compiler doesn't
550 # search /usr/local/include, if ncurses is installed in /usr/local. A
551 # default installation of ncurses on alpha*-dec-osf* will lead to such
553 AC_SEARCH_LIBS(waddstr, [ncursesw ncurses cursesX curses])
555 if test "$ac_cv_search_waddstr" != no; then
560 # Check whether we should enable the TUI, but only do so if we really
562 if test x"$enable_tui" != xno; then
563 if test -d $srcdir/tui; then
564 if test "$curses_found" != no; then
565 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
566 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
567 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
568 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
570 if test x"$enable_tui" = xyes; then
571 AC_MSG_ERROR([no enhanced curses library found; disable TUI])
573 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
579 # Since GDB uses Readline, we need termcap functionality. In many
580 # cases this will be provided by the curses library, but some systems
581 # have a separate termcap library, or no curses library at all.
585 if test -d $srcdir/libtermcap; then
586 LIBS="../libtermcap/libtermcap.a $LIBS"
587 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
590 ac_cv_search_tgetent="none required"
594 # These are the libraries checked by Readline.
595 AC_SEARCH_LIBS(tgetent, [termcap tinfow tinfo curses ncursesw ncurses])
597 if test "$ac_cv_search_tgetent" = no; then
598 CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
601 AC_ARG_WITH([system-readline],
602 [AS_HELP_STRING([--with-system-readline],
603 [use installed readline library])])
605 if test "$with_system_readline" = yes; then
609 READLINE_TEXI_INCFLAG=
611 READLINE='$(READLINE_DIR)/libreadline.a'
612 READLINE_DEPS='$(READLINE)'
613 READLINE_CFLAGS='-I$(READLINE_SRC)/..'
614 READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
617 AC_SUBST(READLINE_DEPS)
618 AC_SUBST(READLINE_CFLAGS)
619 AC_SUBST(READLINE_TEXI_INCFLAG)
621 # Generate jit-reader.h
623 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
626 AC_CHECK_SIZEOF(unsigned long long)
627 AC_CHECK_SIZEOF(unsigned long)
628 AC_CHECK_SIZEOF(unsigned __int128)
630 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
631 TARGET_PTR="unsigned long"
632 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
633 TARGET_PTR="unsigned long long"
634 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
635 TARGET_PTR="unsigned __int128"
637 TARGET_PTR="unsigned long"
641 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
643 AC_SEARCH_LIBS(dlopen, dl)
645 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
646 [directory to load the JIT readers from],
650 AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
651 [], [with_expat=auto])
652 AC_MSG_CHECKING([whether to use expat])
653 AC_MSG_RESULT([$with_expat])
655 if test "${with_expat}" = no; then
656 AC_MSG_WARN([expat support disabled; some features may be unavailable.])
659 AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
660 [XML_Parser p = XML_ParserCreate (0);])
661 if test "$HAVE_LIBEXPAT" != yes; then
662 if test "$with_expat" = yes; then
663 AC_MSG_ERROR([expat is missing or unusable])
665 AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
669 LIBS="$LIBS $LIBEXPAT"
670 AC_CHECK_FUNCS(XML_StopParser)
676 AS_HELP_STRING([--with-mpfr], [include MPFR support (auto/yes/no)]),
677 [], [with_mpfr=auto])
678 AC_MSG_CHECKING([whether to use MPFR])
679 AC_MSG_RESULT([$with_mpfr])
681 if test "${with_mpfr}" = no; then
682 AC_MSG_WARN([MPFR support disabled; some features may be unavailable.])
685 AC_LIB_HAVE_LINKFLAGS([mpfr], [gmp], [#include <mpfr.h>],
686 [mpfr_exp_t exp; mpfr_t x;
687 mpfr_frexp (&exp, x, x, MPFR_RNDN);])
688 if test "$HAVE_LIBMPFR" != yes; then
689 if test "$with_mpfr" = yes; then
690 AC_MSG_ERROR([MPFR is missing or unusable])
692 AC_MSG_WARN([MPFR is missing or unusable; some features may be unavailable.])
697 # --------------------- #
698 # Check for libpython. #
699 # --------------------- #
701 dnl Utility to simplify finding libpython.
703 dnl $2 = the shell variable to assign the result to
704 dnl If libpython is found we store $version here.
705 dnl $3 = additional flags to add to CPPFLAGS
706 dnl $4 = additional flags to add to LIBS
708 AC_DEFUN([AC_TRY_LIBPYTHON],
711 define([have_libpython_var],$2)
714 AC_MSG_CHECKING([for ${version}])
715 save_CPPFLAGS=$CPPFLAGS
717 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
718 LIBS="$new_LIBS $LIBS"
719 found_usable_python=no
720 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "Python.h"]],
721 [[Py_Initialize ();]])],
722 [have_libpython_var=${version}
723 found_usable_python=yes
724 PYTHON_CPPFLAGS=$new_CPPFLAGS
725 PYTHON_LIBS=$new_LIBS])
726 CPPFLAGS=$save_CPPFLAGS
728 AC_MSG_RESULT([${found_usable_python}])
731 dnl There are several different values for --with-python:
733 dnl no - Don't include python support.
734 dnl yes - Include python support, error if it's missing.
735 dnl If we find python in $PATH, use it to fetch configure options,
736 dnl otherwise assume the compiler can find it with no help from us.
737 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
738 dnl auto - Same as "yes", but if python is missing from the system,
739 dnl fall back to "no".
740 dnl /path/to/python/exec-prefix -
741 dnl Use the python located in this directory.
742 dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
743 dnl the compilation parameters. Otherwise use
744 dnl -I/path/to/python/exec-prefix/include,
745 dnl -L/path/to/python/exec-prefix/lib.
746 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
747 dnl NOTE: This case is historical. It is what was done for 7.0/7.1
748 dnl but is deprecated.
749 dnl /path/to/python/executable -
750 dnl Run python-config.py with this version of python to fetch the
751 dnl compilation parameters.
752 dnl NOTE: This needn't be the real python executable.
753 dnl In a cross-compilation scenario (build != host), this could be
754 dnl a shell script that provides what python-config.py provides for
755 dnl --ldflags, --includes, --exec-prefix.
756 dnl python-executable -
757 dnl Find python-executable in $PATH, and then handle the same as
758 dnl /path/to/python/executable.
760 dnl If a python program is specified, it is used to run python-config.py and
761 dnl is passed --ldflags, --includes, --exec-prefix.
764 AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
765 [], [with_python=auto])
766 AC_MSG_CHECKING([whether to use python])
767 AC_MSG_RESULT([$with_python])
769 if test "${with_python}" = no; then
770 AC_MSG_WARN([python support disabled; some features may be unavailable.])
773 case "${with_python}" in
774 [[\\/]]* | ?:[[\\/]]*)
775 if test -d ${with_python}; then
776 # Assume the python binary is ${with_python}/bin/python.
777 python_prog="${with_python}/bin/python"
779 # If python does not exit ${with_python}/bin, then try in
780 # ${with_python}. On Windows/MinGW, this is where the Python
782 if test ! -x "${python_prog}"; then
783 python_prog="${with_python}/python"
786 if test ! -x "${python_prog}"; then
787 # Fall back to gdb 7.0/7.1 behaviour.
789 python_prefix=${with_python}
791 elif test -x "${with_python}"; then
792 # While we can't run python compiled for $host (unless host == build),
793 # the user could write a script that provides the needed information,
794 # so we support that.
795 python_prog=${with_python}
798 AC_ERROR(invalid value for --with-python)
802 # Disallow --with-python=foo/bar.
803 AC_ERROR(invalid value for --with-python)
806 # The user has either specified auto, yes, or the name of the python
807 # program assumed to be in $PATH.
809 case "${with_python}" in
811 if test ${build} = ${host}; then
812 AC_PATH_PROG(python_prog_path, python, missing)
813 if test "${python_prog_path}" = missing; then
816 python_prog=${python_prog_path}
819 # Not much we can do except assume the cross-compiler will find the
825 # While we can't run python compiled for $host (unless host == build),
826 # the user could write a script that provides the needed information,
827 # so we support that.
828 python_prog="${with_python}"
829 AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
830 if test "${python_prog_path}" = missing; then
831 AC_ERROR(unable to find python program ${python_prog})
837 if test "${python_prog}" != missing; then
838 # We have a python program to use, but it may be too old.
839 # Don't flag an error for --with-python=auto (the default).
840 have_python_config=yes
841 python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
842 if test $? != 0; then
843 have_python_config=failed
844 if test "${with_python}" != auto; then
845 AC_ERROR(failure running python-config --includes)
848 python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
849 if test $? != 0; then
850 have_python_config=failed
851 if test "${with_python}" != auto; then
852 AC_ERROR(failure running python-config --ldflags)
855 python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
856 if test $? != 0; then
857 have_python_config=failed
858 if test "${with_python}" != auto; then
859 AC_ERROR(failure running python-config --exec-prefix)
863 # We do not have a python executable we can use to determine where
864 # to find the Python headers and libs. We cannot guess the include
865 # path from the python_prefix either, because that include path
866 # depends on the Python version. So, there is nothing much we can
867 # do except assume that the compiler will be able to find those files.
870 have_python_config=no
873 # If we have python-config, only try the configuration it provides.
874 # Otherwise fallback on the old way of trying different versions of
878 if test "${have_python_config}" = yes; then
879 # Determine the Python version by extracting "-lpython<version>"
880 # part of the python_libs. <version> is usually X.Y with X and Y
881 # being decimal numbers, but can also be XY (seen on Windows).
883 # The extraction is performed using sed with a regular expression.
884 # Initially, the regexp used was using the '?' quantifier to make
885 # the dot in the version number optional. Unfortunately, this
886 # does not work with non-GNU versions of sed because, because of
887 # what looks like a limitation (the '?' quantifier does not work
888 # with back-references). We work around this limitation by using
889 # the '*' quantifier instead. It means that, in theory, we might
890 # match unexpected version strings such as "-lpython2..7", but
891 # this seems unlikely in practice. And even if that happens,
892 # an error will be triggered later on, when checking that version
894 python_version=`echo " ${python_libs} " \
895 | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
896 case "${python_version}" in
898 AC_TRY_LIBPYTHON(${python_version}, have_libpython,
899 ${python_includes}, ${python_libs})
902 AC_MSG_ERROR([unable to determine python version from ${python_libs}])
905 elif test "${have_python_config}" != failed; then
906 if test "${have_libpython}" = no; then
907 AC_TRY_LIBPYTHON(python2.7, have_libpython,
908 ${python_includes}, "-lpython2.7 ${python_libs}")
910 if test "${have_libpython}" = no; then
911 AC_TRY_LIBPYTHON(python2.6, have_libpython,
912 ${python_includes}, "-lpython2.6 ${python_libs}")
914 if test ${have_libpython} = no; then
915 AC_TRY_LIBPYTHON(python2.5, have_libpython,
916 ${python_includes}, "-lpython2.5 ${python_libs}")
918 if test ${have_libpython} = no; then
919 AC_TRY_LIBPYTHON(python2.4, have_libpython,
920 ${python_includes}, "-lpython2.4 ${python_libs}")
923 if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
924 AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
925 elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
926 AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
927 elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
928 AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
929 elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
930 AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
933 if test "${have_libpython}" = no; then
934 case "${with_python}" in
936 AC_MSG_ERROR([python is missing or unusable])
939 AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
942 AC_MSG_ERROR([no usable python found at ${with_python}])
946 if test -n "${python_prefix}"; then
947 AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
948 [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
949 GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
954 if test "${have_libpython}" != no; then
955 AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
956 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
957 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
958 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
959 CONFIG_INSTALL="$CONFIG_INSTALL install-python"
960 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
962 # Flags needed to compile Python code (taken from python-config --cflags).
963 # We cannot call python-config directly because it will output whatever was
964 # used when compiling the Python interpreter itself, including flags which
965 # would make the python-related objects be compiled differently from the
966 # rest of GDB (e.g., -O2 and -fPIC).
967 if test "${GCC}" = yes; then
968 tentative_python_cflags="-fno-strict-aliasing -fwrapv"
969 # Python headers recommend -DNDEBUG, but it's unclear if that just
970 # refers to building Python itself. In release mode, though, it
971 # doesn't hurt for the Python code in gdb to follow.
972 $development || tentative_python_cflags="$tentative_python_cflags -DNDEBUG"
975 if test "x${tentative_python_cflags}" != x; then
976 AC_MSG_CHECKING(compiler flags for python code)
977 for flag in ${tentative_python_cflags}; do
978 # Check that the compiler accepts it
979 saved_CFLAGS="$CFLAGS"
980 CFLAGS="$CFLAGS $flag"
981 AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
982 CFLAGS="$saved_CFLAGS"
984 AC_MSG_RESULT(${PYTHON_CFLAGS})
987 # On x64 Windows, Python's include headers, and pyconfig.h in
988 # particular, rely on MS_WIN64 macro to detect that it's a 64bit
989 # version of Windows. Unfortunately, MS_WIN64 is only defined if
990 # _MSC_VER, a Microsoft-specific macro, is defined. So, when
991 # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
992 # The issue was reported to the Python community, but still isn't
993 # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
997 if test "${GCC}" = yes; then
998 CPPFLAGS="$CPPFLAGS -DMS_WIN64"
1003 # Note that "python -m threading" cannot be used to check for
1004 # threading support due to a bug in Python 2.7.3
1005 # (http://bugs.python.org/issue15567).
1006 AC_MSG_CHECKING(whether python supports threads)
1007 saved_CPPFLAGS="${CPPFLAGS}"
1008 CPPFLAGS="${PYTHON_CPPFLAGS}"
1009 # Note that the test is reversed so that python_has_threads=yes on
1010 # unexpected failures.
1011 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
1016 ]])], [python_has_threads=no], [python_has_threads=yes])
1017 AC_MSG_RESULT(${python_has_threads})
1018 CPPFLAGS="${saved_CPPFLAGS}"
1020 # Even if Python support is not compiled in, we need to have this file
1021 # included so that the "python" command, et.al., still exists.
1022 CONFIG_OBS="$CONFIG_OBS python/python.o"
1023 CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1026 # Work around Python http://bugs.python.org/issue10112. See also
1027 # http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
1028 # no effect. Note that the only test after this that uses Python is
1029 # the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
1030 # run without -export-dynamic too.
1031 PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
1033 AC_SUBST(PYTHON_CFLAGS)
1034 AC_SUBST(PYTHON_CPPFLAGS)
1035 AC_SUBST(PYTHON_LIBS)
1036 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
1038 # -------------------- #
1039 # Check for libguile. #
1040 # -------------------- #
1042 dnl Utility to simplify finding libguile.
1043 dnl $1 = pkg-config-program
1044 dnl $2 = space-separate list of guile versions to try
1045 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1046 dnl $4 = the shell variable to assign the result to
1047 dnl If libguile is found we store "yes" here.
1049 AC_DEFUN([AC_TRY_LIBGUILE],
1052 guile_version_list=$2
1054 define([have_libguile_var],$4)
1055 found_usable_guile=checking
1056 AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1057 for guile_version in ${guile_version_list}; do
1058 ${pkg_config} --exists ${guile_version} 2>/dev/null
1059 if test $? != 0; then
1062 dnl pkg-config says the package exists, so if we get an error now,
1064 new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1065 if test $? != 0; then
1066 AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1068 new_LIBS=`${pkg_config} --libs ${guile_version}`
1069 if test $? != 0; then
1070 AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1072 dnl If we get this far, great.
1073 found_usable_guile=${guile_version}
1076 if test "${found_usable_guile}" = "checking"; then
1077 if test "${flag_errors}" = "yes"; then
1078 AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1080 found_usable_guile=no
1083 dnl One final sanity check.
1084 dnl The user could have said --with-guile=python-2.7.
1085 if test "${found_usable_guile}" != no; then
1086 save_CPPFLAGS=$CPPFLAGS
1088 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1089 LIBS="$LIBS $new_LIBS"
1090 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "libguile.h"]],
1091 [[scm_init_guile ();]])],
1092 [have_libguile_var=yes
1093 GUILE_CPPFLAGS=$new_CPPFLAGS
1094 GUILE_LIBS=$new_LIBS],
1095 [found_usable_guile=no])
1096 dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1097 AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1098 AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1099 [Define if Guile supports manual finalization.])
1101 CPPFLAGS=$save_CPPFLAGS
1103 if test "${found_usable_guile}" = no; then
1104 if test "${flag_errors}" = yes; then
1105 AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1109 AC_MSG_RESULT([${found_usable_guile}])
1112 dnl There are several different values for --with-guile:
1114 dnl no - Don't include guile support.
1115 dnl yes - Include guile support, error if it's missing.
1116 dnl The pkg-config program must be in $PATH.
1117 dnl auto - Same as "yes", but if guile is missing from the system,
1118 dnl fall back to "no".
1119 dnl guile-version [guile-version-choice-2 ...] -
1120 dnl A space-separated list of guile package versions to try.
1121 dnl These are passed to pkg-config as-is.
1122 dnl E.g., guile-2.0 or guile-2.2-uninstalled
1123 dnl This requires making sure PKG_CONFIG_PATH is set appropriately.
1124 dnl /path/to/pkg-config -
1125 dnl Use this pkg-config program.
1126 dnl NOTE: This needn't be the "real" pkg-config program.
1127 dnl It could be a shell script. It is invoked as:
1128 dnl pkg-config --exists $version
1129 dnl pkg-config --cflags $version
1130 dnl pkg-config --libs $version
1131 dnl pkg-config --variable guild $version
1132 dnl The script will be called with $version having each value in
1133 dnl $try_guile_versions until --exists indicates success.
1136 AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1137 [], [with_guile=auto])
1138 AC_MSG_CHECKING([whether to use guile])
1139 AC_MSG_RESULT([$with_guile])
1141 dnl We check guile with pkg-config.
1142 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1144 try_guile_versions="guile-2.0"
1146 case "${with_guile}" in
1148 AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1151 if test "${pkg_config_prog_path}" = "missing"; then
1152 AC_MSG_WARN([pkg-config not found, guile support disabled])
1154 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1158 if test "${pkg_config_prog_path}" = "missing"; then
1159 AC_MSG_ERROR([pkg-config not found])
1161 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1163 [[\\/]]* | ?:[[\\/]]*)
1164 if test -x "${with_guile}"; then
1165 AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1167 AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1171 # Disallow --with=guile="" and --with-guile=foo/bar.
1172 AC_MSG_ERROR([invalid value for --with-guile])
1175 # A space separate list of guile versions to try, in order.
1176 if test "${pkg_config_prog_path}" = "missing"; then
1177 AC_MSG_ERROR([pkg-config not found])
1179 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1183 if test "${have_libguile}" != no; then
1184 dnl Get the name of the 'guild' program.
1185 case "${with_guile}" in
1186 [[\\/]]* | ?:[[\\/]]*)
1187 GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1190 GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1194 dnl Make sure guild can handle this host.
1195 GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1196 dnl If not, disable guile support.
1197 if test "$ac_cv_guild_ok" = no; then
1199 AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1203 if test "${have_libguile}" != no; then
1204 AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1205 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1206 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1207 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1208 CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1209 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1211 dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1213 save_CPPFLAGS="$CPPFLAGS"
1215 CPPFLAGS="$GUILE_CPPFLAGS"
1216 AC_CHECK_FUNCS([scm_new_smob])
1218 CPPFLAGS="$save_CPPFLAGS"
1220 # Even if Guile support is not compiled in, we need to have these files
1222 CONFIG_OBS="$CONFIG_OBS guile/guile.o"
1223 CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1225 AC_SUBST(GUILE_CPPFLAGS)
1226 AC_SUBST(GUILE_LIBS)
1227 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1229 # ---------------------------- #
1230 # Check for source highlight. #
1231 # ---------------------------- #
1236 AC_ARG_ENABLE(source-highlight,
1237 AS_HELP_STRING([--enable-source-highlight],
1238 [enable source-highlight for source listings]),
1239 [case "${enableval}" in
1240 yes) enable_source_highlight=yes ;;
1241 no) enable_source_highlight=no ;;
1242 *) AC_MSG_ERROR(bad value ${enableval} for source-highlight option) ;;
1244 [enable_source_highlight=auto])
1246 if test "${enable_source_highlight}" != "no"; then
1247 AC_MSG_CHECKING([for the source-highlight library])
1248 if test "${pkg_config_prog_path}" = "missing"; then
1249 AC_MSG_RESULT([no - pkg-config not found])
1250 if test "${enable_source_highlight}" = "yes"; then
1251 AC_MSG_ERROR([pkg-config was not found in your system])
1254 if ${pkg_config_prog_path} --exists source-highlight; then
1255 SRCHIGH_CFLAGS=`${pkg_config_prog_path} --cflags source-highlight`
1256 SRCHIGH_LIBS=`${pkg_config_prog_path} --libs source-highlight`
1257 AC_DEFINE([HAVE_SOURCE_HIGHLIGHT], 1,
1258 [Define to 1 if the source-highlight library is available])
1259 AC_MSG_RESULT([yes])
1262 if test "${enable_source_highlight}" = "yes"; then
1263 AC_MSG_ERROR([source-highlight was not found in your system])
1268 AC_SUBST(SRCHIGH_LIBS)
1269 AC_SUBST(SRCHIGH_CFLAGS)
1271 # --------------------- #
1272 # Check for libmcheck. #
1273 # --------------------- #
1275 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1276 # but turn it off if Python is enabled with threads, since -lmcheck is
1277 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1279 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1280 && $development; then
1281 libmcheck_default=yes
1283 libmcheck_default=no
1285 GDB_AC_LIBMCHECK(${libmcheck_default})
1287 if test "$ENABLE_LIBMCHECK" = "yes" \
1288 -a "${have_libpython}" != "no" \
1289 -a "${python_has_threads}" = "yes" ; then
1290 AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1293 AC_ARG_WITH(intel_pt,
1294 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
1295 [], [with_intel_pt=auto])
1296 AC_MSG_CHECKING([whether to use intel pt])
1297 AC_MSG_RESULT([$with_intel_pt])
1299 if test "${with_intel_pt}" = no; then
1300 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
1303 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
1304 #include <linux/perf_event.h>
1305 #ifndef PERF_ATTR_SIZE_VER5
1308 ]])], [perf_event=yes], [perf_event=no])
1309 if test "$perf_event" != yes; then
1310 if test "$with_intel_pt" = yes; then
1311 AC_MSG_ERROR([linux/perf_event.h missing or too old])
1313 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
1317 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
1318 if test "$HAVE_LIBIPT" != yes; then
1319 if test "$with_intel_pt" = yes; then
1320 AC_MSG_ERROR([libipt is missing or unusable])
1322 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
1326 LIBS="$LIBS $LIBIPT"
1327 AC_CHECK_FUNCS(pt_insn_event)
1328 AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
1329 [#include <intel-pt.h>])
1334 # ------------------------- #
1335 # Checks for header files. #
1336 # ------------------------- #
1339 # elf_hp.h is for HP/UX 64-bit shared library support.
1340 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1341 thread_db.h linux/elf.h \
1342 sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1343 sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1344 sys/reg.h sys/debugreg.h sys/select.h \
1345 termios.h elf_hp.h \
1347 AC_CHECK_HEADERS(sys/user.h, [], [],
1348 [#if HAVE_SYS_PARAM_H
1349 # include <sys/param.h>
1353 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncursesw/ncurses.h ncurses/ncurses.h ncurses/term.h)
1354 AC_CHECK_HEADERS(term.h, [], [],
1356 # include <curses.h>
1360 # ------------------------- #
1361 # Checks for declarations. #
1362 # ------------------------- #
1366 AC_CHECK_DECLS([snprintf])
1369 # ----------------------- #
1370 # Checks for structures. #
1371 # ----------------------- #
1373 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1375 # ------------------ #
1376 # Checks for types. #
1377 # ------------------ #
1379 AC_CHECK_TYPES(socklen_t, [], [],
1380 [#include <sys/types.h>
1381 #include <sys/socket.h>
1384 # ------------------------------------- #
1385 # Checks for compiler characteristics. #
1386 # ------------------------------------- #
1392 # ------------------------------ #
1393 # Checks for library functions. #
1394 # ------------------------------ #
1398 AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
1399 pipe poll pread pread64 pwrite resize_term \
1400 sbrk getpgid setpgid setpgrp setsid \
1401 sigaction sigprocmask sigsetmask socketpair \
1402 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1403 setrlimit getrlimit posix_madvise waitpid \
1404 ptrace64 sigaltstack setns use_default_colors])
1408 # Check the return and argument types of ptrace.
1411 dnl AC_FUNC_SETPGRP does not work when cross compiling
1412 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1413 if test "$cross_compiling" = no; then
1416 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1420 if (setpgrp(1,1) == -1)
1424 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1425 if test $ac_cv_func_setpgrp_void = yes; then
1426 AC_DEFINE(SETPGRP_VOID, 1)
1430 # Assume we'll default to using the included libiberty regex.
1431 gdb_use_included_regex=yes
1433 # However, if the system regex is GNU regex, then default to *not*
1434 # using the included regex.
1437 [gdb_cv_have_gnu_regex],
1439 [#include <gnu-versions.h>],
1440 [#define REGEX_INTERFACE_VERSION 1
1441 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1442 # error "Version mismatch"
1444 gdb_cv_have_gnu_regex=yes,
1445 gdb_cv_have_gnu_regex=no)])
1446 if test $gdb_cv_have_gnu_regex = yes; then
1447 gdb_use_included_regex=no
1450 AC_ARG_WITH(included-regex,
1451 AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1452 gdb_with_regex=$withval,
1453 gdb_with_regex=$gdb_use_included_regex)
1454 if test "$gdb_with_regex" = yes; then
1455 AC_DEFINE(USE_INCLUDED_REGEX, 1,
1456 [Define to 1 if the regex included in libiberty should be used.])
1459 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1460 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1461 [#include <sys/param.h>
1462 #include <sys/proc.h>
1465 # See if <sys/lwp.h> defines `struct lwp`.
1466 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1467 [AC_TRY_COMPILE([#include <sys/param.h>
1469 #include <sys/lwp.h>], [struct lwp l;],
1470 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1471 if test $gdb_cv_struct_lwp = yes; then
1472 AC_DEFINE(HAVE_STRUCT_LWP, 1,
1473 [Define to 1 if your system has struct lwp.])
1476 # See if <machine/reg.h> degines `struct reg'.
1477 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1478 [AC_TRY_COMPILE([#include <sys/types.h>
1479 #include <machine/reg.h>], [struct reg r;],
1480 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1481 if test $gdb_cv_struct_reg = yes; then
1482 AC_DEFINE(HAVE_STRUCT_REG, 1,
1483 [Define to 1 if your system has struct reg in <machine/reg.h>.])
1486 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1487 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1488 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1489 [#include <sys/types.h>
1490 #include <machine/reg.h>])
1492 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1493 # Older amd64 Linux's don't have the fs_base and gs_base members of
1494 # `struct user_regs_struct'.
1495 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1496 [], [], [#include <sys/types.h>
1497 #include <sys/user.h>])
1499 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1500 AC_MSG_CHECKING(for PTRACE_GETREGS)
1501 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1502 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1504 [gdb_cv_have_ptrace_getregs=yes],
1505 [gdb_cv_have_ptrace_getregs=no])])
1506 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1507 if test $gdb_cv_have_ptrace_getregs = yes; then
1508 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1509 [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1512 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1513 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1514 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1515 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1516 [PTRACE_GETFPXREGS;],
1517 [gdb_cv_have_ptrace_getfpxregs=yes],
1518 [gdb_cv_have_ptrace_getfpxregs=no])])
1519 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1520 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1521 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1522 [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1525 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1526 AC_MSG_CHECKING(for PT_GETDBREGS)
1527 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1528 [AC_TRY_COMPILE([#include <sys/types.h>
1529 #include <sys/ptrace.h>],
1531 [gdb_cv_have_pt_getdbregs=yes],
1532 [gdb_cv_have_pt_getdbregs=no])])
1533 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1534 if test $gdb_cv_have_pt_getdbregs = yes; then
1535 AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1536 [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1539 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1540 AC_MSG_CHECKING(for PT_GETXMMREGS)
1541 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1542 [AC_TRY_COMPILE([#include <sys/types.h>
1543 #include <sys/ptrace.h>],
1545 [gdb_cv_have_pt_getxmmregs=yes],
1546 [gdb_cv_have_pt_getxmmregs=no])])
1547 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1548 if test $gdb_cv_have_pt_getxmmregs = yes; then
1549 AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1550 [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1553 # See if <sys/ptrace.h> supports LWP names on FreeBSD
1554 # Older FreeBSD versions don't have the pl_tdname member of
1555 # `struct ptrace_lwpinfo'.
1556 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
1557 [#include <sys/ptrace.h>])
1559 # See if <sys/ptrace.h> supports syscall fields on FreeBSD. The
1560 # pl_syscall_code member of `struct ptrace_lwpinfo' was added in
1562 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
1563 [#include <sys/ptrace.h>])
1565 if test "$ac_cv_header_sys_procfs_h" = yes; then
1566 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1567 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1568 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1569 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1570 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1571 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1572 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1573 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
1576 # Check if the compiler supports the `long long' type.
1578 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1579 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1580 [[extern long long foo;]],
1581 [[switch (foo & 2) { case 0: return 1; }]])],
1582 gdb_cv_c_long_long=yes,
1583 gdb_cv_c_long_long=no)])
1584 if test $gdb_cv_c_long_long != yes; then
1585 # libdecnumber requires long long.
1586 AC_MSG_ERROR([Compiler must support long long for GDB.])
1589 # Check if the compiler and runtime support printing long longs.
1591 AC_CACHE_CHECK([for long long support in printf],
1592 gdb_cv_printf_has_long_long,
1593 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1596 l = (l << 16) + 0x0123;
1597 l = (l << 16) + 0x4567;
1598 l = (l << 16) + 0x89ab;
1599 l = (l << 16) + 0xcdef;
1600 sprintf (buf, "0x%016llx", l);
1601 return (strcmp ("0x0123456789abcdef", buf));]])],
1602 gdb_cv_printf_has_long_long=yes,
1603 gdb_cv_printf_has_long_long=no,
1604 gdb_cv_printf_has_long_long=no)])
1605 if test $gdb_cv_printf_has_long_long = yes; then
1606 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1607 [Define to 1 if the "%ll" format works to print long longs.])
1610 # Check if the compiler and runtime support printing decfloats.
1612 AC_CACHE_CHECK([for decfloat support in printf],
1613 gdb_cv_printf_has_decfloat,
1614 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1616 _Decimal32 d32 = 1.2345df;
1617 _Decimal64 d64 = 1.2345dd;
1618 _Decimal128 d128 = 1.2345dl;
1619 sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1620 return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1621 gdb_cv_printf_has_decfloat=yes,
1622 gdb_cv_printf_has_decfloat=no,
1623 gdb_cv_printf_has_decfloat=no)])
1624 if test $gdb_cv_printf_has_decfloat = yes; then
1625 AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1626 [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1629 # Check if the compiler supports the `long double' type. We can't use
1630 # AC_C_LONG_DOUBLE because that one does additional checks on the
1631 # constants defined in <float.h> that fail on some systems,
1632 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1634 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1635 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1636 gdb_cv_c_long_double=yes,
1637 gdb_cv_c_long_double=no)])
1638 if test $gdb_cv_c_long_double = yes; then
1639 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1640 [Define to 1 if the compiler supports long double.])
1643 # Check if the compiler and runtime support printing long doubles.
1645 AC_CACHE_CHECK([for long double support in printf],
1646 gdb_cv_printf_has_long_double,
1647 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1649 long double f = 3.141592653;
1650 sprintf (buf, "%Lg", f);
1651 return (strncmp ("3.14159", buf, 7));]])],
1652 gdb_cv_printf_has_long_double=yes,
1653 gdb_cv_printf_has_long_double=no,
1654 gdb_cv_printf_has_long_double=no)])
1655 if test $gdb_cv_printf_has_long_double = yes; then
1656 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1657 [Define to 1 if the "%Lg" format works to print long doubles.])
1660 # Check if the compiler and runtime support scanning long doubles.
1662 AC_CACHE_CHECK([for long double support in scanf],
1663 gdb_cv_scanf_has_long_double,
1664 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1665 [[#include <stdio.h>]],
1666 [[char *buf = "3.141592653";
1668 sscanf (buf, "%Lg", &f);
1669 return !(f > 3.14159 && f < 3.14160);]])],
1670 gdb_cv_scanf_has_long_double=yes,
1671 gdb_cv_scanf_has_long_double=no,
1672 gdb_cv_scanf_has_long_double=no)])
1673 if test $gdb_cv_scanf_has_long_double = yes; then
1674 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1675 [Define to 1 if the "%Lg" format works to scan long doubles.])
1680 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1681 SAVE_LDFLAGS=$LDFLAGS
1684 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1685 *) gdb_cv_bigtoc=-bbigtoc ;;
1688 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1689 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1690 LDFLAGS="${SAVE_LDFLAGS}"
1692 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1696 AC_MSG_CHECKING(for the dynamic export flag)
1698 if test "${gdb_native}" = yes; then
1699 # The dynamically loaded libthread_db needs access to symbols in the gdb
1700 # executable. Older GNU ld supports --export-dynamic but --dynamic-list
1701 # may not be supported there.
1702 old_LDFLAGS="$LDFLAGS"
1703 # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1704 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1705 LDFLAGS="$LDFLAGS $RDYNAMIC"
1706 if test "${have_libpython}" = no; then
1707 AC_TRY_LINK([], [], [dynamic_list=true])
1709 # Workaround http://bugs.python.org/issue4434 where static
1710 # libpythonX.Y.a would get its symbols required for
1711 # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1712 # Problem does not happen for the recommended libpythonX.Y.so linkage.
1714 # Note the workaround for Python
1715 # http://bugs.python.org/issue10112 earlier has removed
1716 # -export-dynamic from PYTHON_LIBS. That's exactly what we want
1717 # here too, as otherwise it'd make this -Wl,--dynamic-list test
1719 old_CFLAGS="$CFLAGS"
1720 CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1722 LIBS="$LIBS $PYTHON_LIBS"
1723 old_CPPFLAGS="$CPPFLAGS"
1724 CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
1727 [#include "Python.h"],
1730 err = PyRun_SimpleString ("import itertools\n");
1732 return err == 0 ? 0 : 1;])],
1733 [dynamic_list=true], [], [true])
1735 CFLAGS="$old_CFLAGS"
1736 CPPFLAGS="$old_CPPFLAGS"
1738 LDFLAGS="$old_LDFLAGS"
1740 if $dynamic_list; then
1741 found="-Wl,--dynamic-list"
1742 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1745 RDYNAMIC="-rdynamic"
1748 AC_MSG_RESULT($found)
1750 dnl For certain native configurations, we need to check whether thread
1751 dnl support can be built in or not.
1753 dnl Note that we only want this if we are both native (host == target),
1754 dnl and not doing a canadian cross build (build == host).
1756 if test ${build} = ${host} -a ${host} = ${target} ; then
1759 AC_MSG_CHECKING(for AiX thread debugging library)
1760 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1761 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1762 [#ifndef PTHDB_VERSION_3
1765 gdb_cv_have_aix_thread_debug=yes,
1766 gdb_cv_have_aix_thread_debug=no)])
1767 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1768 if test $gdb_cv_have_aix_thread_debug = yes; then
1769 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1770 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1771 LIBS="$LIBS -lpthdebug"
1773 # Older versions of AIX do not provide the declaration for
1774 # the getthrds function (it appears that it was introduced
1776 AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1780 AC_SUBST(CONFIG_LDFLAGS)
1783 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1784 dnl other error codes.
1785 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1786 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1787 gdb_cv_thread_db_h_has_td_notalloc,
1789 [#include <thread_db.h>],
1790 [int i = TD_NOTALLOC;],
1791 gdb_cv_thread_db_h_has_td_notalloc=yes,
1792 gdb_cv_thread_db_h_has_td_notalloc=no
1795 AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1796 gdb_cv_thread_db_h_has_td_version,
1798 [#include <thread_db.h>],
1799 [int i = TD_VERSION;],
1800 gdb_cv_thread_db_h_has_td_version=yes,
1801 gdb_cv_thread_db_h_has_td_version=no
1804 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1805 gdb_cv_thread_db_h_has_td_notls,
1807 [#include <thread_db.h>],
1808 [int i = TD_NOTLS;],
1809 gdb_cv_thread_db_h_has_td_notls=yes,
1810 gdb_cv_thread_db_h_has_td_notls=no
1814 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1815 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1816 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1818 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1819 AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1820 [Define if <thread_db.h> has the TD_VERSION error code.])
1822 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1823 AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1824 [Define if <thread_db.h> has the TD_NOTLS error code.])
1827 dnl Check if we can disable the virtual address space randomization.
1828 dnl The functionality of setarch -R.
1829 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1830 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1831 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
1832 # define ADDR_NO_RANDOMIZE 0x0040000
1834 /* Test the flag could be set and stays set. */
1835 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1836 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1838 AC_RUN_IFELSE([PERSONALITY_TEST],
1839 [have_personality=true],
1840 [have_personality=false],
1841 [AC_LINK_IFELSE([PERSONALITY_TEST],
1842 [have_personality=true],
1843 [have_personality=false])])
1844 if $have_personality
1846 AC_DEFINE([HAVE_PERSONALITY], 1,
1847 [Define if you support the personality syscall.])
1850 dnl Set the host's .gdbinit filename.
1859 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1861 dnl Handle optional features that can be enabled.
1863 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1864 # except that the argument to --with-sysroot is optional.
1865 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1866 if test "x$with_sysroot" = xyes; then
1867 with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1869 AC_ARG_WITH(sysroot,
1870 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1871 [search for usr/lib et al within DIR]),
1872 [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1873 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1874 [search for usr/lib et al within DIR])
1875 AC_SUBST(TARGET_SYSTEM_ROOT)
1876 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1878 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1879 [automatically load a system-wide gdbinit file],
1885 # In the Cygwin environment, we need some additional flags.
1886 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1887 [AC_EGREP_CPP(^lose$, [
1888 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1890 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1893 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1894 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1896 *go32* ) SER_HARDWIRE=ser-go32.o ;;
1897 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1898 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1899 *) SER_HARDWIRE="$SER_HARDWIRE ser-uds.o" ;;
1901 AC_SUBST(SER_HARDWIRE)
1903 # libreadline needs libuser32.a in a cygwin environment
1905 if test x$gdb_cv_os_cygwin = xyes; then
1906 WIN32LIBS="-luser32"
1908 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1913 # The ser-tcp.c module requires sockets.
1916 AC_DEFINE(USE_WIN32API, 1,
1917 [Define if we should use the Windows API, instead of the
1918 POSIX API. On Windows, we use the Windows API when
1919 building for MinGW, but the POSIX API when building
1921 WIN32LIBS="$WIN32LIBS -lws2_32"
1926 # Add ELF support to GDB, but only if BFD includes ELF support.
1927 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1928 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1929 if test $gdb_cv_var_elf = yes; then
1930 CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
1931 AC_DEFINE(HAVE_ELF, 1,
1932 [Define if ELF support should be included.])
1933 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1934 if test "$plugins" = "yes"; then
1935 AC_SEARCH_LIBS(dlopen, dl)
1939 # Add macho support to GDB, but only if BFD includes it.
1940 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1941 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1942 if test $gdb_cv_var_macho = yes; then
1943 CONFIG_OBS="$CONFIG_OBS machoread.o"
1946 # Add any host-specific objects to GDB.
1947 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1949 # If building on ELF, look for lzma support for embedded compressed debug info.
1950 if test $gdb_cv_var_elf = yes; then
1952 AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1953 [], [with_lzma=auto])
1954 AC_MSG_CHECKING([whether to use lzma])
1955 AC_MSG_RESULT([$with_lzma])
1957 if test "${with_lzma}" != no; then
1958 AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1959 [lzma_index_iter iter;
1960 lzma_index_iter_init (&iter, 0);
1961 lzma_mf_is_supported (LZMA_MF_HC3);])
1962 if test "$HAVE_LIBLZMA" != yes; then
1963 if test "$with_lzma" = yes; then
1964 AC_MSG_ERROR([missing liblzma for --with-lzma])
1970 LIBGUI="../libgui/src/libgui.a"
1971 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1973 AC_SUBST(GUI_CFLAGS_X)
1977 AC_SUBST(WIN32LDAPP)
1980 *-*-cygwin* | *-*-mingw* )
1989 if test "${enable_gdbtk}" = "yes"; then
1991 # Gdbtk must have an absolute path to srcdir in order to run
1992 # properly when not installed.
2000 # If $no_tk is nonempty, then we can't do Tk, and there is no
2001 # point to doing Tcl.
2004 if test -z "${no_tcl}" -a -z "${no_tk}"; then
2007 # Check for in-tree tcl
2014 if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2018 # Find Tcl private headers
2019 if test x"${intree}" = xno; then
2020 CY_AC_TCL_PRIVATE_HEADERS
2021 TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2022 TCL_LIBRARY="${TCL_LIB_SPEC}"
2025 # If building tcl in the same src tree, private headers
2026 # are not needed, but we need to be sure to use the right
2028 TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2029 TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2030 TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2032 AC_SUBST(TCL_INCLUDE)
2033 AC_SUBST(TCL_LIBRARY)
2038 # Check for in-tree Tk
2040 if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2044 # Find Tk private headers
2045 if test x"${intree}" = xno; then
2046 CY_AC_TK_PRIVATE_HEADERS
2047 TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2048 TK_LIBRARY=${TK_LIB_SPEC}
2051 TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2052 TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2053 TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2055 AC_SUBST(TK_INCLUDE)
2056 AC_SUBST(TK_LIBRARY)
2058 AC_SUBST(TK_XINCLUDES)
2060 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2062 # Include some libraries that Tcl and Tk want.
2063 TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2064 # Yes, the ordering seems wrong here. But it isn't.
2065 # TK_LIBS is the list of libraries that need to be linked
2066 # after Tcl/Tk. Note that this isn't put into LIBS. If it
2067 # were in LIBS then any link tests after this point would
2068 # try to include things like `$(LIBGUI)', which wouldn't work.
2069 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2071 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2072 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2073 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2074 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2075 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2076 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2077 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2079 if test x$gdb_cv_os_cygwin = xyes; then
2080 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2081 WIN32LDAPP="-Wl,--subsystem,console"
2082 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2085 AC_CONFIG_SUBDIRS(gdbtk)
2093 AC_SUBST(GDBTK_CFLAGS)
2094 AC_SUBST(GDBTK_SRC_DIR)
2098 # Unlike the sim directory, whether a simulator is linked is controlled by
2099 # presence of a gdb_sim definition in the target configure.tgt entry.
2100 # This code just checks for a few cases where we'd like to ignore those
2101 # definitions, even when they're present in the '.mt' file. These cases
2102 # are when --disable-sim is specified, or if the simulator directory is
2103 # not part of the source tree.
2106 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2107 [echo "enable_sim = $enable_sim";
2108 echo "enableval = ${enableval}";
2109 case "${enableval}" in
2110 yes) ignore_sim=false ;;
2111 no) ignore_sim=true ;;
2112 *) ignore_sim=false ;;
2116 if test ! -d "${srcdir}/../sim"; then
2122 if test "${ignore_sim}" = "false"; then
2123 if test x"${gdb_sim}" != x ; then
2125 SIM_OBS="remote-sim.o"
2126 AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2128 # Some tdep code should only be compiled in when the ppc sim is
2129 # built. PR sim/13418.
2132 AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
2140 AC_SUBST(ENABLE_CFLAGS)
2141 AC_SUBST(PROFILE_CFLAGS)
2143 AC_SUBST(CONFIG_OBS)
2144 AC_SUBST(CONFIG_DEPS)
2145 AC_SUBST(CONFIG_SRCS)
2146 AC_SUBST(CONFIG_ALL)
2147 AC_SUBST(CONFIG_CLEAN)
2148 AC_SUBST(CONFIG_INSTALL)
2149 AC_SUBST(CONFIG_UNINSTALL)
2151 # List of host floatformats.
2152 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2153 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2154 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2156 # target_subdir is used by the testsuite to find the target libraries.
2158 if test "${host}" != "${target}"; then
2159 target_subdir="${target_alias}/"
2161 AC_SUBST(target_subdir)
2163 # Import nat definitions.
2164 nat_makefile_frag=/dev/null
2165 if test "${gdb_native}" = "yes"; then
2166 . ${srcdir}/configure.nat
2167 nativefile=$NAT_FILE
2171 AC_SUBST(NATDEPFILES)
2176 AC_SUBST(NAT_GENERATED_FILES)
2177 AC_SUBST(HAVE_NATIVE_GCORE_HOST)
2178 AC_SUBST_FILE(nat_makefile_frag)
2180 if test x"${gdb_osabi}" != x ; then
2181 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2182 [Define to the default OS ABI for this configuration.])
2185 AC_ARG_ENABLE(gdbserver,
2186 AS_HELP_STRING([--enable-gdbserver],
2187 [automatically build gdbserver (yes/no/auto, default is auto)]),
2188 [case "${enableval}" in
2190 *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2191 esac],[enable_gdbserver=auto])
2193 # We only build gdbserver automatically in a native configuration, and
2194 # only if the user did not explicitly disable its build.
2195 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2196 AC_MSG_CHECKING(whether gdbserver is supported on this host)
2197 if test "x$build_gdbserver" = xyes; then
2199 AC_CONFIG_SUBDIRS(gdbserver)
2200 gdbserver_build_enabled=yes
2206 # If the user explicitly request the gdbserver to be built, verify that
2207 # we were in fact able to enable it.
2208 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2209 AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2212 # Check for babeltrace and babeltrace-ctf
2213 AC_ARG_WITH(babeltrace,
2214 AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2215 [], [with_babeltrace=auto])
2216 AC_MSG_CHECKING([whether to use babeltrace])
2217 AC_MSG_RESULT([$with_babeltrace])
2219 if test "x$with_babeltrace" = "xno"; then
2220 AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2222 # Append -Werror to CFLAGS so that configure can catch the warning
2223 # "assignment from incompatible pointer type", which is related to
2224 # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
2225 # in GDB, while babeltrace 1.0.3 is broken.
2226 # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2227 # safe to save and restore CFLAGS here.
2228 saved_CFLAGS=$CFLAGS
2229 CFLAGS="$CFLAGS -Werror"
2230 AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2231 [#include <babeltrace/babeltrace.h>
2232 #include <babeltrace/ctf/events.h>
2233 #include <babeltrace/ctf/iterator.h>],
2234 [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2235 struct bt_ctf_event *event = NULL;
2236 const struct bt_definition *scope;
2238 pos->type = BT_SEEK_BEGIN;
2239 bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2240 scope = bt_ctf_get_top_level_scope (event,
2241 BT_STREAM_EVENT_HEADER);
2242 bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2244 CFLAGS=$saved_CFLAGS
2246 if test "$HAVE_LIBBABELTRACE" != yes; then
2247 if test "$with_babeltrace" = yes; then
2248 AC_MSG_ERROR([babeltrace is missing or unusable])
2250 AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2255 # If nativefile (NAT_FILE) is not set in configure.nat, we link to an
2262 if test "${nativefile}" != ""; then
2263 case "${nativefile}" in
2264 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2265 * ) GDB_NM_FILE="${nativefile}"
2267 files="${files} ${GDB_NM_FILE}"
2268 links="${links} nm.h"
2269 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2271 AC_SUBST(GDB_NM_FILE)
2273 dnl Add dependency for xsltproc if building with maintainer-mode enabled.
2274 AC_PATH_PROGS(XSLTPROC, xsltproc, missing)
2275 if test "x$USE_MAINTAINER_MODE" = xyes; then
2276 if test "${XSLTPROC}" = missing; then
2277 AC_ERROR(unable to find xsltproc. maintainer-mode requires xsltproc.)
2282 AC_LINK_FILES($files, $links)
2284 dnl Check for exe extension set on certain hosts (e.g. Win32)
2287 dnl Detect the character set used by this host.
2288 dnl At the moment, we just assume it's UTF-8.
2289 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2290 [Define to be a string naming the default host character set.])
2293 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_UNITTESTS_OBS) common/selftest.o selftest-arch.o"
2294 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_UNITTESTS_SRCS) common/selftest.c selftest-arch.c"
2297 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2298 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2299 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2300 AC_CONFIG_FILES([Makefile gdb-gdb.gdb gdb-gdb.py doc/Makefile data-directory/Makefile],
2302 case x$CONFIG_HEADERS in
2303 xconfig.h:config.in)