1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright (C) 1995-2017 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 . $srcdir/../bfd/development.sh
32 AC_USE_SYSTEM_EXTENSIONS
41 # We require a C++11 compiler. Check if one is available, and if
42 # necessary, set CXX_DIALECT to some -std=xxx switch.
43 AX_CXX_COMPILE_STDCXX(11, , mandatory)
45 # Dependency checking.
47 ZW_PROG_COMPILER_DEPENDENCIES([CC])
49 gnulib_extra_configure_args=
50 # If large-file support is disabled, make sure gnulib does the same.
51 if test "$enable_largefile" = no; then
52 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
55 # Configure gnulib. We need to build gnulib under some other
56 # directory not "gnulib", to avoid the problem of both GDB and
57 # GDBserver wanting to build it in the same directory, when building
59 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"],
60 ["$gnulib_extra_configure_args"])
62 dnl List of object files and targets accumulated by configure.
74 dnl Set up for gettext.
75 ZW_GNU_GETTEXT_SISTER_DIR
77 localedir='${datadir}/locale'
80 if test x"$USE_NLS" = xyes; then
81 CONFIG_ALL="$CONFIG_ALL all-po"
82 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
83 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
84 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
87 GNULIB=build-gnulib/import
89 # For Makefile dependencies.
91 if test x"$STDINT_H" != x; then
92 GNULIB_STDINT_H=$GNULIB/$STDINT_H
94 AC_SUBST(GNULIB_STDINT_H)
97 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
100 # We never need to detect it in this sub-configure.
101 # But preserve it for config.status --recheck.
103 [Parent configure detects if it is of sufficient version.])
104 AC_ARG_VAR(MAKEINFOFLAGS,
105 [Parameters for MAKEINFO.])
107 MAKEINFO_EXTRA_FLAGS=""
108 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
109 [echo '@clicksequence{a @click{} b}' >conftest.texinfo
110 if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
111 gdb_cv_have_makeinfo_click=yes
113 gdb_cv_have_makeinfo_click=no
115 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
116 MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
118 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
120 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
121 [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
124 # We can't pass paths as command line arguments.
125 # Mingw32 tries to be clever and will convert the paths for us.
126 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
127 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
128 # This breaks GDB's relocatable path conversions since paths passed in
129 # config.h would not get so translated, the path prefixes no longer match.
130 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
132 # GDB's datadir relocation
134 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
135 [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
138 AC_ARG_WITH(relocated-sources,
139 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
140 [reloc_srcdir="${withval}"
141 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
142 [Relocated directory for source files. ])
145 AC_MSG_CHECKING([for default auto-load directory])
146 AC_ARG_WITH(auto-load-dir,
147 AS_HELP_STRING([--with-auto-load-dir=PATH],
148 [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
149 [with_auto_load_dir='$debugdir:$datadir/auto-load'])
150 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
151 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
152 [Directories from which to load auto-loaded scripts.])
153 AC_MSG_RESULT([$with_auto_load_dir])
155 AC_MSG_CHECKING([for default auto-load safe-path])
156 AC_ARG_WITH(auto-load-safe-path,
157 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
158 [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
159 AS_HELP_STRING([--without-auto-load-safe-path],
160 [do not restrict auto-loaded files locations]),
161 [if test "$with_auto_load_safe_path" = "no"; then
162 with_auto_load_safe_path="/"
164 [with_auto_load_safe_path="$with_auto_load_dir"])
165 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
166 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
167 [Directories safe to hold auto-loaded files.])
168 AC_MSG_RESULT([$with_auto_load_safe_path])
170 AC_CONFIG_SUBDIRS(testsuite)
172 # Check whether to support alternative target configurations
173 AC_ARG_ENABLE(targets,
174 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
175 [case "${enableval}" in
176 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
178 no) enable_targets= ;;
179 *) enable_targets=$enableval ;;
182 # Check whether to enable 64-bit support on 32-bit hosts
183 AC_ARG_ENABLE(64-bit-bfd,
184 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
185 [case "${enableval}" in
188 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
189 esac],[want64=false])dnl
191 # Provide defaults for some variables set by the per-host and per-target
193 gdb_host_obs=posix-hdep.o
195 if test "${target}" = "${host}"; then
201 . $srcdir/configure.host
203 # Add in the common host objects.
204 . $srcdir/common/common.host
205 gdb_host_obs="$gdb_host_obs $common_host_obs"
207 # Accumulate some settings from configure.tgt over all enabled targets
211 HAVE_NATIVE_GCORE_TARGET=
213 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
215 if test "$targ_alias" = "all"; then
218 # Canonicalize the secondary target names.
219 result=`$ac_config_sub $targ_alias 2>/dev/null`
220 if test -n "$result"; then
226 . ${srcdir}/configure.tgt
228 AS_IF([test -z "${gdb_target_obs}"],
229 [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
231 # Target-specific object files
232 for i in ${gdb_target_obs}; do
233 case " $TARGET_OBS " in
236 TARGET_OBS="$TARGET_OBS ${i}"
241 # Check whether this target needs 64-bit CORE_ADDR
242 if test x${want64} = xfalse; then
243 . ${srcdir}/../bfd/config.bfd
246 # Check whether this target is native and supports gcore.
247 if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
248 && $gdb_have_gcore; then
249 HAVE_NATIVE_GCORE_TARGET=1
254 if test x${all_targets} = xtrue; then
256 # We want all 64-bit targets if we either:
257 # - run on a 64-bit host or
258 # - already require 64-bit support for some other target or
259 # - the --enable-64-bit-bfd option was supplied
260 # Otherwise we only support all 32-bit targets.
262 # NOTE: This test must be in sync with the corresponding
265 if test x${want64} = xfalse; then
266 AC_CHECK_SIZEOF(long)
267 if test "x${ac_cv_sizeof_long}" = "x8"; then
271 if test x${want64} = xtrue; then
272 TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
274 TARGET_OBS='$(ALL_TARGET_OBS)'
279 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
281 # For other settings, only the main target counts.
285 targ=$target; . ${srcdir}/configure.tgt
287 # Fetch the default architecture and default target vector from BFD.
288 targ=$target; . $srcdir/../bfd/config.bfd
290 # We only want the first architecture, so strip off the others if
291 # there is more than one.
292 targ_archs=`echo $targ_archs | sed 's/ .*//'`
294 if test "x$targ_archs" != x; then
295 AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
296 [Define to BFD's default architecture. ])
298 if test "x$targ_defvec" != x; then
299 AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
300 [Define to BFD's default target vector. ])
303 # The CLI cannot be disabled yet, but may be in the future.
306 AC_ARG_ENABLE(gdbcli,
307 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
312 AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
314 AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
317 if test x"$enable_gdbcli" = xyes; then
318 if test -d $srcdir/cli; then
319 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
320 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
321 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
322 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
328 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
333 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
336 if test x"$enable_gdbmi" = xyes; then
337 if test -d $srcdir/mi; then
338 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
339 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
340 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
341 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
347 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
352 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
353 esac],enable_tui=auto)
357 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
362 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
364 [if test -d $srcdir/gdbtk; then
369 # We unconditionally disable gdbtk tests on selected platforms.
372 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
376 # Libunwind support for ia64.
378 AC_ARG_WITH(libunwind-ia64,
379 AS_HELP_STRING([--with-libunwind-ia64],
380 [use libunwind frame unwinding for ia64 targets]),,
381 [with_libunwind_ia64=auto])
383 # Backward compatibility option.
384 if test "${with_libunwind+set}" = set; then
385 if test x"$with_libunwind_ia64" != xauto; then
387 [option --with-libunwind is deprecated, use --with-libunwind-ia64])
389 AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
390 with_libunwind_ia64="$with_libunwind"
393 case "$with_libunwind_ia64" in
397 AC_CHECK_HEADERS(libunwind-ia64.h)
398 with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
402 [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
406 if test x"$with_libunwind_ia64" = xyes; then
407 AC_CHECK_HEADERS(libunwind-ia64.h)
408 if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
409 AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
411 CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
412 CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
413 CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
417 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
420 if test "$opt_curses" = "yes"; then
425 AC_ARG_ENABLE(profiling,
426 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
431 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
433 [enable_profiling=no])
435 AC_CHECK_FUNCS(monstartup _mcleanup)
436 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
441 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
442 if test $ac_cv_var__etext = yes; then
443 AC_DEFINE(HAVE__ETEXT, 1,
444 [Define to 1 if your system has the _etext variable. ])
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 $ac_cv_var_etext = yes; then
453 AC_DEFINE(HAVE_ETEXT, 1,
454 [Define to 1 if your system has the etext variable. ])
456 if test "$enable_profiling" = yes ; then
457 if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
458 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
462 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
464 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
465 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
466 ac_cv_cc_supports_pg=no)])
468 if test $ac_cv_cc_supports_pg = no; then
469 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
475 ACX_PKGVERSION([GDB])
476 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
477 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
478 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
480 # --------------------- #
481 # Checks for programs. #
482 # --------------------- #
490 AC_CHECK_TOOL(AR, ar)
491 AC_CHECK_TOOL(DLLTOOL, dlltool)
492 AC_CHECK_TOOL(WINDRES, windres)
496 # Needed for GNU Hurd hosts.
497 AC_CHECK_TOOL(MIG, mig)
498 if test x"$MIG" = x; then
499 AC_MSG_ERROR([MIG not found but required for $host hosts])
504 # ---------------------- #
505 # Checks for libraries. #
506 # ---------------------- #
508 # We might need to link with -lm; most simulators need it.
509 AC_CHECK_LIB(m, main)
511 # We need to link with -lw to get `wctype' on Solaris before Solaris
512 # 2.6. Solaris 2.6 and beyond have this function in libc, and have a
513 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
514 # is known to have this problem). Therefore we avoid libw if we can.
515 AC_CHECK_FUNC(wctype, [],
516 [AC_CHECK_LIB(w, wctype)])
518 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
519 AC_SEARCH_LIBS(gethostbyname, nsl)
521 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
522 AC_SEARCH_LIBS(socketpair, socket)
524 # Link in zlib if we can. This allows us to read compressed debug sections.
527 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
528 # On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
529 AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
530 [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
531 [Define to 1 if your system has the kinfo_getvmmap function. ])])
535 # GDB may fork/exec the iconv program to get the list of supported character
536 # sets. Allow the user to specify where to find it.
537 # There are several factors affecting the choice of option name:
538 # - There is already --with-libiconv-prefix but we can't use it, it specifies
539 # the build-time location of libiconv files.
540 # - The program we need to find is iconv, which comes with glibc. The user
541 # doesn't necessarily have libiconv installed. Therefore naming this
542 # --with-libiconv-foo feels wrong.
543 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
544 # defined to work on directories not files (though it really doesn't know
546 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
547 # with --with-libiconv-prefix.
548 # Putting these together is why the option name is --with-iconv-bin.
550 AC_ARG_WITH(iconv-bin,
551 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
552 [iconv_bin="${withval}"
553 AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
554 [Path of directory of iconv program.])
555 GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
558 # For the TUI, we need enhanced curses functionality.
559 if test x"$enable_tui" != xno; then
564 if test x"$prefer_curses" = xyes; then
565 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
566 # curses library because the latter might not provide all the
567 # functionality we need. However, this leads to problems on systems
568 # where the linker searches /usr/local/lib, but the compiler doesn't
569 # search /usr/local/include, if ncurses is installed in /usr/local. A
570 # default installation of ncurses on alpha*-dec-osf* will lead to such
572 AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
574 if test "$ac_cv_search_waddstr" != no; then
579 # Check whether we should enable the TUI, but only do so if we really
581 if test x"$enable_tui" != xno; then
582 if test -d $srcdir/tui; then
583 if test "$curses_found" != no; then
584 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
585 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
586 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
587 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
589 if test x"$enable_tui" = xyes; then
590 AC_MSG_ERROR([no enhanced curses library found; disable TUI])
592 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
598 # Since GDB uses Readline, we need termcap functionality. In many
599 # cases this will be provided by the curses library, but some systems
600 # have a separate termcap library, or no curses library at all.
604 if test -d $srcdir/libtermcap; then
605 LIBS="../libtermcap/libtermcap.a $LIBS"
606 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
609 ac_cv_search_tgetent="none required"
613 # These are the libraries checked by Readline.
614 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
616 if test "$ac_cv_search_tgetent" = no; then
617 CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
620 AC_ARG_WITH([system-readline],
621 [AS_HELP_STRING([--with-system-readline],
622 [use installed readline library])])
624 if test "$with_system_readline" = yes; then
628 READLINE_TEXI_INCFLAG=
630 READLINE='$(READLINE_DIR)/libreadline.a'
631 READLINE_DEPS='$(READLINE)'
632 READLINE_CFLAGS='-I$(READLINE_SRC)/..'
633 READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
636 AC_SUBST(READLINE_DEPS)
637 AC_SUBST(READLINE_CFLAGS)
638 AC_SUBST(READLINE_TEXI_INCFLAG)
640 # Generate jit-reader.h
642 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
645 AC_CHECK_SIZEOF(unsigned long long)
646 AC_CHECK_SIZEOF(unsigned long)
647 AC_CHECK_SIZEOF(unsigned __int128)
649 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
650 TARGET_PTR="unsigned long"
651 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
652 TARGET_PTR="unsigned long long"
653 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
654 TARGET_PTR="unsigned __int128"
656 TARGET_PTR="unsigned long"
660 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
662 AC_SEARCH_LIBS(dlopen, dl)
664 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
665 [directory to load the JIT readers from],
669 AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
670 [], [with_expat=auto])
671 AC_MSG_CHECKING([whether to use expat])
672 AC_MSG_RESULT([$with_expat])
674 if test "${with_expat}" = no; then
675 AC_MSG_WARN([expat support disabled; some features may be unavailable.])
678 AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
679 [XML_Parser p = XML_ParserCreate (0);])
680 if test "$HAVE_LIBEXPAT" != yes; then
681 if test "$with_expat" = yes; then
682 AC_MSG_ERROR([expat is missing or unusable])
684 AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
688 LIBS="$LIBS $LIBEXPAT"
689 AC_CHECK_FUNCS(XML_StopParser)
694 # --------------------- #
695 # Check for libpython. #
696 # --------------------- #
698 dnl Utility to simplify finding libpython.
700 dnl $2 = the shell variable to assign the result to
701 dnl If libpython is found we store $version here.
702 dnl $3 = additional flags to add to CPPFLAGS
703 dnl $4 = additional flags to add to LIBS
705 AC_DEFUN([AC_TRY_LIBPYTHON],
708 define([have_libpython_var],$2)
711 AC_MSG_CHECKING([for ${version}])
712 save_CPPFLAGS=$CPPFLAGS
714 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
715 LIBS="$LIBS $new_LIBS"
716 found_usable_python=no
717 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
718 [[Py_Initialize ();]]),
719 [have_libpython_var=${version}
720 found_usable_python=yes
721 PYTHON_CPPFLAGS=$new_CPPFLAGS
722 PYTHON_LIBS=$new_LIBS])
723 CPPFLAGS=$save_CPPFLAGS
725 AC_MSG_RESULT([${found_usable_python}])
728 dnl There are several different values for --with-python:
730 dnl no - Don't include python support.
731 dnl yes - Include python support, error if it's missing.
732 dnl If we find python in $PATH, use it to fetch configure options,
733 dnl otherwise assume the compiler can find it with no help from us.
734 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
735 dnl auto - Same as "yes", but if python is missing from the system,
736 dnl fall back to "no".
737 dnl /path/to/python/exec-prefix -
738 dnl Use the python located in this directory.
739 dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
740 dnl the compilation parameters. Otherwise use
741 dnl -I/path/to/python/exec-prefix/include,
742 dnl -L/path/to/python/exec-prefix/lib.
743 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
744 dnl NOTE: This case is historical. It is what was done for 7.0/7.1
745 dnl but is deprecated.
746 dnl /path/to/python/executable -
747 dnl Run python-config.py with this version of python to fetch the
748 dnl compilation parameters.
749 dnl NOTE: This needn't be the real python executable.
750 dnl In a cross-compilation scenario (build != host), this could be
751 dnl a shell script that provides what python-config.py provides for
752 dnl --ldflags, --includes, --exec-prefix.
753 dnl python-executable -
754 dnl Find python-executable in $PATH, and then handle the same as
755 dnl /path/to/python/executable.
757 dnl If a python program is specified, it is used to run python-config.py and
758 dnl is passed --ldflags, --includes, --exec-prefix.
761 AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
762 [], [with_python=auto])
763 AC_MSG_CHECKING([whether to use python])
764 AC_MSG_RESULT([$with_python])
766 if test "${with_python}" = no; then
767 AC_MSG_WARN([python support disabled; some features may be unavailable.])
770 case "${with_python}" in
771 [[\\/]]* | ?:[[\\/]]*)
772 if test -d ${with_python}; then
773 # Assume the python binary is ${with_python}/bin/python.
774 python_prog="${with_python}/bin/python"
776 # If python does not exit ${with_python}/bin, then try in
777 # ${with_python}. On Windows/MinGW, this is where the Python
779 if test ! -x "${python_prog}"; then
780 python_prog="${with_python}/python"
783 if test ! -x "${python_prog}"; then
784 # Fall back to gdb 7.0/7.1 behaviour.
786 python_prefix=${with_python}
788 elif test -x "${with_python}"; then
789 # While we can't run python compiled for $host (unless host == build),
790 # the user could write a script that provides the needed information,
791 # so we support that.
792 python_prog=${with_python}
795 AC_ERROR(invalid value for --with-python)
799 # Disallow --with-python=foo/bar.
800 AC_ERROR(invalid value for --with-python)
803 # The user has either specified auto, yes, or the name of the python
804 # program assumed to be in $PATH.
806 case "${with_python}" in
808 if test ${build} = ${host}; then
809 AC_PATH_PROG(python_prog_path, python, missing)
810 if test "${python_prog_path}" = missing; then
813 python_prog=${python_prog_path}
816 # Not much we can do except assume the cross-compiler will find the
822 # While we can't run python compiled for $host (unless host == build),
823 # the user could write a script that provides the needed information,
824 # so we support that.
825 python_prog="${with_python}"
826 AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
827 if test "${python_prog_path}" = missing; then
828 AC_ERROR(unable to find python program ${python_prog})
834 if test "${python_prog}" != missing; then
835 # We have a python program to use, but it may be too old.
836 # Don't flag an error for --with-python=auto (the default).
837 have_python_config=yes
838 python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
839 if test $? != 0; then
840 have_python_config=failed
841 if test "${with_python}" != auto; then
842 AC_ERROR(failure running python-config --includes)
845 python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
846 if test $? != 0; then
847 have_python_config=failed
848 if test "${with_python}" != auto; then
849 AC_ERROR(failure running python-config --ldflags)
852 python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
853 if test $? != 0; then
854 have_python_config=failed
855 if test "${with_python}" != auto; then
856 AC_ERROR(failure running python-config --exec-prefix)
860 # We do not have a python executable we can use to determine where
861 # to find the Python headers and libs. We cannot guess the include
862 # path from the python_prefix either, because that include path
863 # depends on the Python version. So, there is nothing much we can
864 # do except assume that the compiler will be able to find those files.
867 have_python_config=no
870 # If we have python-config, only try the configuration it provides.
871 # Otherwise fallback on the old way of trying different versions of
875 if test "${have_python_config}" = yes; then
876 # Determine the Python version by extracting "-lpython<version>"
877 # part of the python_libs. <version> is usually X.Y with X and Y
878 # being decimal numbers, but can also be XY (seen on Windows).
880 # The extraction is performed using sed with a regular expression.
881 # Initially, the regexp used was using the '?' quantifier to make
882 # the dot in the version number optional. Unfortunately, this
883 # does not work with non-GNU versions of sed because, because of
884 # what looks like a limitation (the '?' quantifier does not work
885 # with back-references). We work around this limitation by using
886 # the '*' quantifier instead. It means that, in theory, we might
887 # match unexpected version strings such as "-lpython2..7", but
888 # this seems unlikely in practice. And even if that happens,
889 # an error will be triggered later on, when checking that version
891 python_version=`echo " ${python_libs} " \
892 | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
893 case "${python_version}" in
895 AC_TRY_LIBPYTHON(${python_version}, have_libpython,
896 ${python_includes}, ${python_libs})
899 AC_MSG_ERROR([unable to determine python version from ${python_libs}])
902 elif test "${have_python_config}" != failed; then
903 if test "${have_libpython}" = no; then
904 AC_TRY_LIBPYTHON(python2.7, have_libpython,
905 ${python_includes}, "${python_libs} -lpython2.7")
907 if test "${have_libpython}" = no; then
908 AC_TRY_LIBPYTHON(python2.6, have_libpython,
909 ${python_includes}, "${python_libs} -lpython2.6")
911 if test ${have_libpython} = no; then
912 AC_TRY_LIBPYTHON(python2.5, have_libpython,
913 ${python_includes}, "${python_libs} -lpython2.5")
915 if test ${have_libpython} = no; then
916 AC_TRY_LIBPYTHON(python2.4, have_libpython,
917 ${python_includes}, "${python_libs} -lpython2.4")
920 if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
921 AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
922 elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
923 AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
924 elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
925 AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
926 elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
927 AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
930 if test "${have_libpython}" = no; then
931 case "${with_python}" in
933 AC_MSG_ERROR([python is missing or unusable])
936 AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
939 AC_MSG_ERROR([no usable python found at ${with_python}])
943 if test -n "${python_prefix}"; then
944 AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
945 [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
946 GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
951 if test "${have_libpython}" != no; then
952 AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
953 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
954 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
955 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
956 CONFIG_INSTALL="$CONFIG_INSTALL install-python"
957 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
959 # Flags needed to compile Python code (taken from python-config --cflags).
960 # We cannot call python-config directly because it will output whatever was
961 # used when compiling the Python interpreter itself, including flags which
962 # would make the python-related objects be compiled differently from the
963 # rest of GDB (e.g., -O2 and -fPIC).
964 if test "${GCC}" = yes; then
965 tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
968 if test "x${tentative_python_cflags}" != x; then
969 AC_MSG_CHECKING(compiler flags for python code)
970 for flag in ${tentative_python_cflags}; do
971 # Check that the compiler accepts it
972 saved_CFLAGS="$CFLAGS"
973 CFLAGS="$CFLAGS $flag"
974 AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
975 CFLAGS="$saved_CFLAGS"
977 AC_MSG_RESULT(${PYTHON_CFLAGS})
980 # On x64 Windows, Python's include headers, and pyconfig.h in
981 # particular, rely on MS_WIN64 macro to detect that it's a 64bit
982 # version of Windows. Unfortunately, MS_WIN64 is only defined if
983 # _MSC_VER, a Microsoft-specific macro, is defined. So, when
984 # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
985 # The issue was reported to the Python community, but still isn't
986 # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
990 if test "${GCC}" = yes; then
991 CPPFLAGS="$CPPFLAGS -DMS_WIN64"
996 # Note that "python -m threading" cannot be used to check for
997 # threading support due to a bug in Python 2.7.3
998 # (http://bugs.python.org/issue15567).
999 AC_MSG_CHECKING(whether python supports threads)
1000 saved_CPPFLAGS="${CPPFLAGS}"
1001 CPPFLAGS="${PYTHON_CPPFLAGS}"
1002 # Note that the test is reversed so that python_has_threads=yes on
1003 # unexpected failures.
1004 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1009 ]]), [python_has_threads=no], [python_has_threads=yes])
1010 AC_MSG_RESULT(${python_has_threads})
1011 CPPFLAGS="${saved_CPPFLAGS}"
1013 # Even if Python support is not compiled in, we need to have this file
1014 # included so that the "python" command, et.al., still exists.
1015 CONFIG_OBS="$CONFIG_OBS python.o"
1016 CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1019 # Work around Python http://bugs.python.org/issue10112. See also
1020 # http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
1021 # no effect. Note that the only test after this that uses Python is
1022 # the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
1023 # run without -export-dynamic too.
1024 PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
1026 AC_SUBST(PYTHON_CFLAGS)
1027 AC_SUBST(PYTHON_CPPFLAGS)
1028 AC_SUBST(PYTHON_LIBS)
1029 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
1031 # -------------------- #
1032 # Check for libguile. #
1033 # -------------------- #
1035 dnl Utility to simplify finding libguile.
1036 dnl $1 = pkg-config-program
1037 dnl $2 = space-separate list of guile versions to try
1038 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1039 dnl $4 = the shell variable to assign the result to
1040 dnl If libguile is found we store "yes" here.
1042 AC_DEFUN([AC_TRY_LIBGUILE],
1045 guile_version_list=$2
1047 define([have_libguile_var],$4)
1048 found_usable_guile=checking
1049 AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1050 for guile_version in ${guile_version_list}; do
1051 ${pkg_config} --exists ${guile_version} 2>/dev/null
1052 if test $? != 0; then
1055 dnl pkg-config says the package exists, so if we get an error now,
1057 new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1058 if test $? != 0; then
1059 AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1061 new_LIBS=`${pkg_config} --libs ${guile_version}`
1062 if test $? != 0; then
1063 AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1065 dnl If we get this far, great.
1066 found_usable_guile=${guile_version}
1069 if test "${found_usable_guile}" = "checking"; then
1070 if test "${flag_errors}" = "yes"; then
1071 AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1073 found_usable_guile=no
1076 dnl One final sanity check.
1077 dnl The user could have said --with-guile=python-2.7.
1078 if test "${found_usable_guile}" != no; then
1079 save_CPPFLAGS=$CPPFLAGS
1081 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1082 LIBS="$LIBS $new_LIBS"
1083 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "libguile.h"]],
1084 [[scm_init_guile ();]]),
1085 [have_libguile_var=yes
1086 GUILE_CPPFLAGS=$new_CPPFLAGS
1087 GUILE_LIBS=$new_LIBS],
1088 [found_usable_guile=no])
1089 dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1090 AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1091 AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1092 [Define if Guile supports manual finalization.])
1094 CPPFLAGS=$save_CPPFLAGS
1096 if test "${found_usable_guile}" = no; then
1097 if test "${flag_errors}" = yes; then
1098 AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1102 AC_MSG_RESULT([${found_usable_guile}])
1105 dnl There are several different values for --with-guile:
1107 dnl no - Don't include guile support.
1108 dnl yes - Include guile support, error if it's missing.
1109 dnl The pkg-config program must be in $PATH.
1110 dnl auto - Same as "yes", but if guile is missing from the system,
1111 dnl fall back to "no".
1112 dnl guile-version [guile-version-choice-2 ...] -
1113 dnl A space-separated list of guile package versions to try.
1114 dnl These are passed to pkg-config as-is.
1115 dnl E.g., guile-2.0 or guile-2.2-uninstalled
1116 dnl This requires making sure PKG_CONFIG_PATH is set appropriately.
1117 dnl /path/to/pkg-config -
1118 dnl Use this pkg-config program.
1119 dnl NOTE: This needn't be the "real" pkg-config program.
1120 dnl It could be a shell script. It is invoked as:
1121 dnl pkg-config --exists $version
1122 dnl pkg-config --cflags $version
1123 dnl pkg-config --libs $version
1124 dnl pkg-config --variable guild $version
1125 dnl The script will be called with $version having each value in
1126 dnl $try_guile_versions until --exists indicates success.
1129 AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1130 [], [with_guile=auto])
1131 AC_MSG_CHECKING([whether to use guile])
1132 AC_MSG_RESULT([$with_guile])
1134 dnl We check guile with pkg-config.
1135 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1137 try_guile_versions="guile-2.2 guile-2.0"
1139 case "${with_guile}" in
1141 AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1144 if test "${pkg_config_prog_path}" = "missing"; then
1145 AC_MSG_WARN([pkg-config not found, guile support disabled])
1147 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1151 if test "${pkg_config_prog_path}" = "missing"; then
1152 AC_MSG_ERROR([pkg-config not found])
1154 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1156 [[\\/]]* | ?:[[\\/]]*)
1157 if test -x "${with_guile}"; then
1158 AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1160 AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1164 # Disallow --with=guile="" and --with-guile=foo/bar.
1165 AC_MSG_ERROR([invalid value for --with-guile])
1168 # A space separate list of guile versions to try, in order.
1169 if test "${pkg_config_prog_path}" = "missing"; then
1170 AC_MSG_ERROR([pkg-config not found])
1172 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1176 if test "${have_libguile}" != no; then
1177 dnl Get the name of the 'guild' program.
1178 case "${with_guile}" in
1179 [[\\/]]* | ?:[[\\/]]*)
1180 GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1183 GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1187 dnl Make sure guild can handle this host.
1188 GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1189 dnl If not, disable guile support.
1190 if test "$ac_cv_guild_ok" = no; then
1192 AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1196 if test "${have_libguile}" != no; then
1197 AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1198 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1199 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1200 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1201 CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1202 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1204 dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1206 save_CPPFLAGS="$CPPFLAGS"
1208 CPPFLAGS="$GUILE_CPPFLAGS"
1209 AC_CHECK_FUNCS([scm_new_smob])
1211 CPPFLAGS="$save_CPPFLAGS"
1213 # Even if Guile support is not compiled in, we need to have these files
1215 CONFIG_OBS="$CONFIG_OBS guile.o"
1216 CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1218 AC_SUBST(GUILE_CPPFLAGS)
1219 AC_SUBST(GUILE_LIBS)
1220 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1222 # --------------------- #
1223 # Check for libmcheck. #
1224 # --------------------- #
1226 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1227 # but turn it off if Python is enabled with threads, since -lmcheck is
1228 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1230 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1231 && $development; then
1232 libmcheck_default=yes
1234 libmcheck_default=no
1236 GDB_AC_LIBMCHECK(${libmcheck_default})
1238 if test "$ENABLE_LIBMCHECK" = "yes" \
1239 -a "${have_libpython}" != "no" \
1240 -a "${python_has_threads}" = "yes" ; then
1241 AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1244 AC_ARG_WITH(intel_pt,
1245 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
1246 [], [with_intel_pt=auto])
1247 AC_MSG_CHECKING([whether to use intel pt])
1248 AC_MSG_RESULT([$with_intel_pt])
1250 if test "${with_intel_pt}" = no; then
1251 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
1254 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1255 #include <linux/perf_event.h>
1256 #ifndef PERF_ATTR_SIZE_VER5
1259 ]]), [perf_event=yes], [perf_event=no])
1260 if test "$perf_event" != yes; then
1261 if test "$with_intel_pt" = yes; then
1262 AC_MSG_ERROR([linux/perf_event.h missing or too old])
1264 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
1268 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
1269 if test "$HAVE_LIBIPT" != yes; then
1270 if test "$with_intel_pt" = yes; then
1271 AC_MSG_ERROR([libipt is missing or unusable])
1273 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
1278 # ------------------------- #
1279 # Checks for header files. #
1280 # ------------------------- #
1283 # elf_hp.h is for HP/UX 64-bit shared library support.
1284 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1287 sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1288 sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1289 sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1290 termios.h termio.h \
1293 AC_CHECK_HEADERS(sys/proc.h, [], [],
1294 [#if HAVE_SYS_PARAM_H
1295 # include <sys/param.h>
1298 AC_CHECK_HEADERS(sys/user.h, [], [],
1299 [#if HAVE_SYS_PARAM_H
1300 # include <sys/param.h>
1304 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
1305 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
1306 # think that we don't have <curses.h> if we're using GCC.
1309 if test "$GCC" = yes; then
1310 AC_DEFINE(_MSE_INT_H, 1,
1311 [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
1312 Solaris 2.[789] when using GCC. ])
1315 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
1316 AC_CHECK_HEADERS(term.h, [], [],
1318 # include <curses.h>
1322 # ------------------------- #
1323 # Checks for declarations. #
1324 # ------------------------- #
1328 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1331 # ----------------------- #
1332 # Checks for structures. #
1333 # ----------------------- #
1335 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1337 # ------------------ #
1338 # Checks for types. #
1339 # ------------------ #
1341 AC_CHECK_TYPES(socklen_t, [], [],
1342 [#include <sys/types.h>
1343 #include <sys/socket.h>
1346 # ------------------------------------- #
1347 # Checks for compiler characteristics. #
1348 # ------------------------------------- #
1354 # ------------------------------ #
1355 # Checks for library functions. #
1356 # ------------------------------ #
1360 AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
1361 pipe poll pread pread64 pwrite resize_term \
1362 sbrk setpgid setpgrp setsid \
1363 sigaction sigprocmask sigsetmask socketpair \
1364 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1365 setrlimit getrlimit posix_madvise waitpid \
1366 ptrace64 sigaltstack mkdtemp setns])
1370 # Check the return and argument types of ptrace.
1373 dnl AC_FUNC_SETPGRP does not work when cross compiling
1374 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1375 if test "$cross_compiling" = no; then
1378 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1382 if (setpgrp(1,1) == -1)
1386 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1387 if test $ac_cv_func_setpgrp_void = yes; then
1388 AC_DEFINE(SETPGRP_VOID, 1)
1392 # Assume we'll default to using the included libiberty regex.
1393 gdb_use_included_regex=yes
1395 # However, if the system regex is GNU regex, then default to *not*
1396 # using the included regex.
1399 [gdb_cv_have_gnu_regex],
1401 [#include <gnu-versions.h>],
1402 [#define REGEX_INTERFACE_VERSION 1
1403 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1404 # error "Version mismatch"
1406 gdb_cv_have_gnu_regex=yes,
1407 gdb_cv_have_gnu_regex=no)])
1408 if test $gdb_cv_have_gnu_regex = yes; then
1409 gdb_use_included_regex=no
1412 AC_ARG_WITH(included-regex,
1413 AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1414 gdb_with_regex=$withval,
1415 gdb_with_regex=$gdb_use_included_regex)
1416 if test "$gdb_with_regex" = yes; then
1417 AC_DEFINE(USE_INCLUDED_REGEX, 1,
1418 [Define to 1 if the regex included in libiberty should be used.])
1421 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1422 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1423 [#include <sys/param.h>
1424 #include <sys/proc.h>
1427 # See if <sys/lwp.h> defines `struct lwp`.
1428 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1429 [AC_TRY_COMPILE([#include <sys/param.h>
1430 #include <sys/lwp.h>], [struct lwp l;],
1431 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1432 if test $gdb_cv_struct_lwp = yes; then
1433 AC_DEFINE(HAVE_STRUCT_LWP, 1,
1434 [Define to 1 if your system has struct lwp.])
1437 # See if <machine/reg.h> degines `struct reg'.
1438 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1439 [AC_TRY_COMPILE([#include <sys/types.h>
1440 #include <machine/reg.h>], [struct reg r;],
1441 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1442 if test $gdb_cv_struct_reg = yes; then
1443 AC_DEFINE(HAVE_STRUCT_REG, 1,
1444 [Define to 1 if your system has struct reg in <machine/reg.h>.])
1447 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1448 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1449 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1450 [#include <sys/types.h>
1451 #include <machine/reg.h>])
1453 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1454 # Older amd64 Linux's don't have the fs_base and gs_base members of
1455 # `struct user_regs_struct'.
1456 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1457 [], [], [#include <sys/user.h>])
1459 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1460 AC_MSG_CHECKING(for PTRACE_GETREGS)
1461 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1462 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1464 [gdb_cv_have_ptrace_getregs=yes],
1465 [gdb_cv_have_ptrace_getregs=no])])
1466 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1467 if test $gdb_cv_have_ptrace_getregs = yes; then
1468 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1469 [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1472 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1473 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1474 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1475 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1476 [PTRACE_GETFPXREGS;],
1477 [gdb_cv_have_ptrace_getfpxregs=yes],
1478 [gdb_cv_have_ptrace_getfpxregs=no])])
1479 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1480 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1481 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1482 [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1485 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1486 AC_MSG_CHECKING(for PT_GETDBREGS)
1487 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1488 [AC_TRY_COMPILE([#include <sys/types.h>
1489 #include <sys/ptrace.h>],
1491 [gdb_cv_have_pt_getdbregs=yes],
1492 [gdb_cv_have_pt_getdbregs=no])])
1493 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1494 if test $gdb_cv_have_pt_getdbregs = yes; then
1495 AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1496 [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1499 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1500 AC_MSG_CHECKING(for PT_GETXMMREGS)
1501 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1502 [AC_TRY_COMPILE([#include <sys/types.h>
1503 #include <sys/ptrace.h>],
1505 [gdb_cv_have_pt_getxmmregs=yes],
1506 [gdb_cv_have_pt_getxmmregs=no])])
1507 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1508 if test $gdb_cv_have_pt_getxmmregs = yes; then
1509 AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1510 [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1513 # See if <sys/ptrace.h> supports LWP names on FreeBSD
1514 # Older FreeBSD versions don't have the pl_tdname member of
1515 # `struct ptrace_lwpinfo'.
1516 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
1517 [#include <sys/ptrace.h>])
1519 # See if <sys/ptrace.h> supports syscall fields on FreeBSD. The
1520 # pl_syscall_code member of `struct ptrace_lwpinfo' was added in
1522 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
1523 [#include <sys/ptrace.h>])
1525 # Detect which type of /proc is in use, such as for Solaris.
1527 if test "${target}" = "${host}"; then
1529 *-*-sysv4.2* | *-*-sysv5* )
1530 AC_DEFINE(NEW_PROC_API, 1,
1531 [Define if you want to use new multi-fd /proc interface.])
1533 *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1534 AC_DEFINE(NEW_PROC_API, 1,
1535 [Define if you want to use new multi-fd /proc interface.])
1540 if test "$ac_cv_header_sys_procfs_h" = yes; then
1541 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1542 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1543 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1544 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1545 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1546 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1547 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1548 BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1549 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1550 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1551 BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1554 dnl Check for broken prfpregset_t type
1556 dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1557 dnl prfpregset_t type (it's a typedef for the pointer to a struct
1558 dnl instead of the struct itself). We detect this here, and work
1559 dnl around it in gdb_proc_service.h.
1561 if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1562 AC_MSG_CHECKING(whether prfpregset_t type is broken)
1563 AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1564 [AC_TRY_RUN([#include <sys/procfs.h>
1567 if (sizeof (prfpregset_t) == sizeof (void *))
1571 gdb_cv_prfpregset_t_broken=no,
1572 gdb_cv_prfpregset_t_broken=yes,
1573 gdb_cv_prfpregset_t_broken=yes)])
1574 AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1575 if test $gdb_cv_prfpregset_t_broken = yes; then
1576 AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1577 [Define if the prfpregset_t type is broken.])
1582 # Check if the compiler supports the `long long' type.
1584 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1585 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1586 [[extern long long foo;]],
1587 [[switch (foo & 2) { case 0: return 1; }]])],
1588 gdb_cv_c_long_long=yes,
1589 gdb_cv_c_long_long=no)])
1590 if test $gdb_cv_c_long_long != yes; then
1591 # libdecnumber requires long long.
1592 AC_MSG_ERROR([Compiler must support long long for GDB.])
1595 # Check if the compiler and runtime support printing long longs.
1597 AC_CACHE_CHECK([for long long support in printf],
1598 gdb_cv_printf_has_long_long,
1599 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1602 l = (l << 16) + 0x0123;
1603 l = (l << 16) + 0x4567;
1604 l = (l << 16) + 0x89ab;
1605 l = (l << 16) + 0xcdef;
1606 sprintf (buf, "0x%016llx", l);
1607 return (strcmp ("0x0123456789abcdef", buf));]])],
1608 gdb_cv_printf_has_long_long=yes,
1609 gdb_cv_printf_has_long_long=no,
1610 gdb_cv_printf_has_long_long=no)])
1611 if test $gdb_cv_printf_has_long_long = yes; then
1612 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1613 [Define to 1 if the "%ll" format works to print long longs.])
1616 # Check if the compiler and runtime support printing decfloats.
1618 AC_CACHE_CHECK([for decfloat support in printf],
1619 gdb_cv_printf_has_decfloat,
1620 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1622 _Decimal32 d32 = 1.2345df;
1623 _Decimal64 d64 = 1.2345dd;
1624 _Decimal128 d128 = 1.2345dl;
1625 sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1626 return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1627 gdb_cv_printf_has_decfloat=yes,
1628 gdb_cv_printf_has_decfloat=no,
1629 gdb_cv_printf_has_decfloat=no)])
1630 if test $gdb_cv_printf_has_decfloat = yes; then
1631 AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1632 [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1635 # Check if the compiler supports the `long double' type. We can't use
1636 # AC_C_LONG_DOUBLE because that one does additional checks on the
1637 # constants defined in <float.h> that fail on some systems,
1638 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1640 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1641 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1642 gdb_cv_c_long_double=yes,
1643 gdb_cv_c_long_double=no)])
1644 if test $gdb_cv_c_long_double = yes; then
1645 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1646 [Define to 1 if the compiler supports long double.])
1649 # Check if the compiler and runtime support printing long doubles.
1651 AC_CACHE_CHECK([for long double support in printf],
1652 gdb_cv_printf_has_long_double,
1653 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1655 long double f = 3.141592653;
1656 sprintf (buf, "%Lg", f);
1657 return (strncmp ("3.14159", buf, 7));]])],
1658 gdb_cv_printf_has_long_double=yes,
1659 gdb_cv_printf_has_long_double=no,
1660 gdb_cv_printf_has_long_double=no)])
1661 if test $gdb_cv_printf_has_long_double = yes; then
1662 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1663 [Define to 1 if the "%Lg" format works to print long doubles.])
1666 # Check if the compiler and runtime support scanning long doubles.
1668 AC_CACHE_CHECK([for long double support in scanf],
1669 gdb_cv_scanf_has_long_double,
1670 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1671 [[#include <stdio.h>]],
1672 [[char *buf = "3.141592653";
1674 sscanf (buf, "%Lg", &f);
1675 return !(f > 3.14159 && f < 3.14160);]])],
1676 gdb_cv_scanf_has_long_double=yes,
1677 gdb_cv_scanf_has_long_double=no,
1678 gdb_cv_scanf_has_long_double=no)])
1679 if test $gdb_cv_scanf_has_long_double = yes; then
1680 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1681 [Define to 1 if the "%Lg" format works to scan long doubles.])
1686 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1687 SAVE_LDFLAGS=$LDFLAGS
1690 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1691 *) gdb_cv_bigtoc=-bbigtoc ;;
1694 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1695 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1696 LDFLAGS="${SAVE_LDFLAGS}"
1698 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1702 AC_MSG_CHECKING(for the dynamic export flag)
1704 if test "${gdb_native}" = yes; then
1705 # The dynamically loaded libthread_db needs access to symbols in the gdb
1706 # executable. Older GNU ld supports --export-dynamic but --dynamic-list
1707 # may not be supported there.
1708 old_LDFLAGS="$LDFLAGS"
1709 # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1710 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1711 LDFLAGS="$LDFLAGS $RDYNAMIC"
1712 if test "${have_libpython}" = no; then
1713 AC_TRY_LINK([], [], [dynamic_list=true])
1715 # Workaround http://bugs.python.org/issue4434 where static
1716 # libpythonX.Y.a would get its symbols required for
1717 # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1718 # Problem does not happen for the recommended libpythonX.Y.so linkage.
1720 # Note the workaround for Python
1721 # http://bugs.python.org/issue10112 earlier has removed
1722 # -export-dynamic from PYTHON_LIBS. That's exactly what we want
1723 # here too, as otherwise it'd make this -Wl,--dynamic-list test
1725 old_CFLAGS="$CFLAGS"
1726 CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1728 LIBS="$LIBS $PYTHON_LIBS"
1729 old_CPPFLAGS="$CPPFLAGS"
1730 CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
1733 [#include "Python.h"],
1736 err = PyRun_SimpleString ("import itertools\n");
1738 return err == 0 ? 0 : 1;]),
1739 [dynamic_list=true], [], [true])
1741 CFLAGS="$old_CFLAGS"
1742 CPPFLAGS="$old_CPPFLAGS"
1744 LDFLAGS="$old_LDFLAGS"
1746 if $dynamic_list; then
1747 found="-Wl,--dynamic-list"
1748 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1751 RDYNAMIC="-rdynamic"
1754 AC_MSG_RESULT($found)
1756 dnl For certain native configurations, we need to check whether thread
1757 dnl support can be built in or not.
1759 dnl Note that we only want this if we are both native (host == target),
1760 dnl and not doing a canadian cross build (build == host).
1762 if test ${build} = ${host} -a ${host} = ${target} ; then
1765 # See if thread_db library is around for Solaris thread debugging.
1766 # Note that we must explicitly test for version 1 of the library
1767 # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1769 AC_MSG_CHECKING(for Solaris thread debugging library)
1770 if test -f /usr/lib/libthread_db.so.1 ; then
1772 AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1773 [Define if using Solaris thread debugging.])
1774 CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1775 CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1776 AC_CHECK_LIB(dl, dlopen)
1777 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1778 # Sun randomly tweaked the prototypes in <proc_service.h>
1780 AC_MSG_CHECKING(if <proc_service.h> is old)
1781 AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1783 #include <proc_service.h>
1785 (struct ps_prochandle*, psaddr_t, const void*, size_t);
1786 ],, gdb_cv_proc_service_is_old=no,
1787 gdb_cv_proc_service_is_old=yes)
1789 AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1790 if test $gdb_cv_proc_service_is_old = yes; then
1791 AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1792 [Define if <proc_service.h> on solaris uses int instead of
1793 size_t, and assorted other type changes.])
1800 AC_MSG_CHECKING(for AiX thread debugging library)
1801 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1802 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1803 [#ifndef PTHDB_VERSION_3
1806 gdb_cv_have_aix_thread_debug=yes,
1807 gdb_cv_have_aix_thread_debug=no)])
1808 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1809 if test $gdb_cv_have_aix_thread_debug = yes; then
1810 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1811 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1812 LIBS="$LIBS -lpthdebug"
1814 # Older versions of AIX do not provide the declaration for
1815 # the getthrds function (it appears that it was introduced
1817 AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1821 AC_SUBST(CONFIG_LDFLAGS)
1824 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1825 dnl other error codes.
1826 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1827 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1828 gdb_cv_thread_db_h_has_td_notalloc,
1830 [#include <thread_db.h>],
1831 [int i = TD_NOTALLOC;],
1832 gdb_cv_thread_db_h_has_td_notalloc=yes,
1833 gdb_cv_thread_db_h_has_td_notalloc=no
1836 AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1837 gdb_cv_thread_db_h_has_td_version,
1839 [#include <thread_db.h>],
1840 [int i = TD_VERSION;],
1841 gdb_cv_thread_db_h_has_td_version=yes,
1842 gdb_cv_thread_db_h_has_td_version=no
1845 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1846 gdb_cv_thread_db_h_has_td_notls,
1848 [#include <thread_db.h>],
1849 [int i = TD_NOTLS;],
1850 gdb_cv_thread_db_h_has_td_notls=yes,
1851 gdb_cv_thread_db_h_has_td_notls=no
1855 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1856 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1857 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1859 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1860 AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1861 [Define if <thread_db.h> has the TD_VERSION error code.])
1863 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1864 AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1865 [Define if <thread_db.h> has the TD_NOTLS error code.])
1868 dnl Check if we can disable the virtual address space randomization.
1869 dnl The functionality of setarch -R.
1870 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1871 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1872 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
1873 # define ADDR_NO_RANDOMIZE 0x0040000
1875 /* Test the flag could be set and stays set. */
1876 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1877 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1879 AC_RUN_IFELSE([PERSONALITY_TEST],
1880 [have_personality=true],
1881 [have_personality=false],
1882 [AC_LINK_IFELSE([PERSONALITY_TEST],
1883 [have_personality=true],
1884 [have_personality=false])])
1885 if $have_personality
1887 AC_DEFINE([HAVE_PERSONALITY], 1,
1888 [Define if you support the personality syscall.])
1891 dnl Set the host's .gdbinit filename.
1900 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1902 dnl Handle optional features that can be enabled.
1904 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1905 # except that the argument to --with-sysroot is optional.
1906 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1907 if test "x$with_sysroot" = xyes; then
1908 with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1910 AC_ARG_WITH(sysroot,
1911 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1912 [search for usr/lib et al within DIR]),
1913 [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1914 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1915 [search for usr/lib et al within DIR])
1916 AC_SUBST(TARGET_SYSTEM_ROOT)
1917 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1919 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1920 [automatically load a system-wide gdbinit file],
1925 # In the Cygwin environment, we need some additional flags.
1926 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1927 [AC_EGREP_CPP(^lose$, [
1928 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1930 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1933 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1934 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1936 *go32* ) SER_HARDWIRE=ser-go32.o ;;
1937 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1938 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1940 AC_SUBST(SER_HARDWIRE)
1942 # libreadline needs libuser32.a in a cygwin environment
1944 if test x$gdb_cv_os_cygwin = xyes; then
1945 WIN32LIBS="-luser32"
1947 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1952 # The ser-tcp.c module requires sockets.
1955 AC_DEFINE(USE_WIN32API, 1,
1956 [Define if we should use the Windows API, instead of the
1957 POSIX API. On Windows, we use the Windows API when
1958 building for MinGW, but the POSIX API when building
1960 WIN32LIBS="$WIN32LIBS -lws2_32"
1965 # Add ELF support to GDB, but only if BFD includes ELF support.
1966 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1967 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1968 if test $gdb_cv_var_elf = yes; then
1969 CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
1970 AC_DEFINE(HAVE_ELF, 1,
1971 [Define if ELF support should be included.])
1972 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1973 if test "$plugins" = "yes"; then
1974 AC_SEARCH_LIBS(dlopen, dl)
1978 # Add macho support to GDB, but only if BFD includes it.
1979 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1980 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1981 if test $gdb_cv_var_macho = yes; then
1982 CONFIG_OBS="$CONFIG_OBS machoread.o"
1985 # Add any host-specific objects to GDB.
1986 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1988 # If building on ELF, look for lzma support for embedded compressed debug info.
1989 if test $gdb_cv_var_elf = yes; then
1991 AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1992 [], [with_lzma=auto])
1993 AC_MSG_CHECKING([whether to use lzma])
1994 AC_MSG_RESULT([$with_lzma])
1996 if test "${with_lzma}" != no; then
1997 AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1998 [lzma_index_iter iter;
1999 lzma_index_iter_init (&iter, 0);
2000 lzma_mf_is_supported (LZMA_MF_HC3);])
2001 if test "$HAVE_LIBLZMA" != yes; then
2002 if test "$with_lzma" = yes; then
2003 AC_MSG_ERROR([missing liblzma for --with-lzma])
2009 LIBGUI="../libgui/src/libgui.a"
2010 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
2012 AC_SUBST(GUI_CFLAGS_X)
2016 AC_SUBST(WIN32LDAPP)
2019 *-*-cygwin* | *-*-mingw* )
2028 if test "${enable_gdbtk}" = "yes"; then
2030 # Gdbtk must have an absolute path to srcdir in order to run
2031 # properly when not installed.
2039 # If $no_tk is nonempty, then we can't do Tk, and there is no
2040 # point to doing Tcl.
2043 if test -z "${no_tcl}" -a -z "${no_tk}"; then
2046 # Check for in-tree tcl
2053 if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2057 # Find Tcl private headers
2058 if test x"${intree}" = xno; then
2059 CY_AC_TCL_PRIVATE_HEADERS
2060 TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2061 TCL_LIBRARY="${TCL_LIB_SPEC}"
2064 # If building tcl in the same src tree, private headers
2065 # are not needed, but we need to be sure to use the right
2067 TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2068 TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2069 TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2071 AC_SUBST(TCL_INCLUDE)
2072 AC_SUBST(TCL_LIBRARY)
2077 # Check for in-tree Tk
2079 if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2083 # Find Tk private headers
2084 if test x"${intree}" = xno; then
2085 CY_AC_TK_PRIVATE_HEADERS
2086 TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2087 TK_LIBRARY=${TK_LIB_SPEC}
2090 TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2091 TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2092 TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2094 AC_SUBST(TK_INCLUDE)
2095 AC_SUBST(TK_LIBRARY)
2097 AC_SUBST(TK_XINCLUDES)
2099 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2101 # Include some libraries that Tcl and Tk want.
2102 TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2103 # Yes, the ordering seems wrong here. But it isn't.
2104 # TK_LIBS is the list of libraries that need to be linked
2105 # after Tcl/Tk. Note that this isn't put into LIBS. If it
2106 # were in LIBS then any link tests after this point would
2107 # try to include things like `$(LIBGUI)', which wouldn't work.
2108 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2110 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2111 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2112 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2113 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2114 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2115 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2116 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2118 if test x$gdb_cv_os_cygwin = xyes; then
2119 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2120 WIN32LDAPP="-Wl,--subsystem,console"
2121 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2124 AC_CONFIG_SUBDIRS(gdbtk)
2132 AC_SUBST(GDBTK_CFLAGS)
2133 AC_SUBST(GDBTK_SRC_DIR)
2137 # Unlike the sim directory, whether a simulator is linked is controlled by
2138 # presence of a gdb_sim definition in the target configure.tgt entry.
2139 # This code just checks for a few cases where we'd like to ignore those
2140 # definitions, even when they're present in the '.mt' file. These cases
2141 # are when --disable-sim is specified, or if the simulator directory is
2142 # not part of the source tree.
2145 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2146 [echo "enable_sim = $enable_sim";
2147 echo "enableval = ${enableval}";
2148 case "${enableval}" in
2149 yes) ignore_sim=false ;;
2150 no) ignore_sim=true ;;
2151 *) ignore_sim=false ;;
2155 if test ! -d "${srcdir}/../sim"; then
2161 if test "${ignore_sim}" = "false"; then
2162 if test x"${gdb_sim}" != x ; then
2164 SIM_OBS="remote-sim.o"
2165 AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2167 # Some tdep code should only be compiled in when the ppc sim is
2168 # built. PR sim/13418.
2171 AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
2179 AC_SUBST(ENABLE_CFLAGS)
2180 AC_SUBST(PROFILE_CFLAGS)
2182 AC_SUBST(CONFIG_OBS)
2183 AC_SUBST(CONFIG_DEPS)
2184 AC_SUBST(CONFIG_SRCS)
2185 AC_SUBST(CONFIG_ALL)
2186 AC_SUBST(CONFIG_CLEAN)
2187 AC_SUBST(CONFIG_INSTALL)
2188 AC_SUBST(CONFIG_UNINSTALL)
2190 # List of host floatformats.
2191 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2192 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2193 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2195 # target_subdir is used by the testsuite to find the target libraries.
2197 if test "${host}" != "${target}"; then
2198 target_subdir="${target_alias}/"
2200 AC_SUBST(target_subdir)
2203 if test "${gdb_native}" = "yes"; then
2204 host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2205 if test ! -f ${host_makefile_frag}; then
2206 AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2208 frags="$frags $host_makefile_frag"
2210 host_makefile_frag=/dev/null
2213 AC_SUBST_FILE(host_makefile_frag)
2217 if test "${gdb_native}" = "yes"; then
2218 # We pick this up from the host configuration file (.mh) because we
2219 # do not have a native configuration Makefile fragment.
2220 nativefile=`sed -n '
2221 s/NAT_FILE[ ]*=[ ]*\([^ ]*\)/\1/p
2222 ' ${host_makefile_frag}`
2226 if test x"${gdb_osabi}" != x ; then
2227 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2228 [Define to the default OS ABI for this configuration.])
2231 # Enable multi-ice-gdb-server.
2232 AC_ARG_ENABLE(multi-ice,
2233 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2237 *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2239 if test "x$enable_multi_ice" = xyes; then
2240 AC_CONFIG_SUBDIRS(multi-ice)
2243 AC_ARG_ENABLE(gdbserver,
2244 AS_HELP_STRING([--enable-gdbserver],
2245 [automatically build gdbserver (yes/no/auto, default is auto)]),
2246 [case "${enableval}" in
2248 *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2249 esac],[enable_gdbserver=auto])
2251 # We only build gdbserver automatically in a native configuration, and
2252 # only if the user did not explicitly disable its build.
2253 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2254 AC_MSG_CHECKING(whether gdbserver is supported on this host)
2255 if test "x$build_gdbserver" = xyes; then
2257 AC_CONFIG_SUBDIRS(gdbserver)
2258 gdbserver_build_enabled=yes
2264 # If the user explicitly request the gdbserver to be built, verify that
2265 # we were in fact able to enable it.
2266 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2267 AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2270 # Check for babeltrace and babeltrace-ctf
2271 AC_ARG_WITH(babeltrace,
2272 AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2273 [], [with_babeltrace=auto])
2274 AC_MSG_CHECKING([whether to use babeltrace])
2275 AC_MSG_RESULT([$with_babeltrace])
2277 if test "x$with_babeltrace" = "xno"; then
2278 AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2280 # Append -Werror to CFLAGS so that configure can catch the warning
2281 # "assignment from incompatible pointer type", which is related to
2282 # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
2283 # in GDB, while babeltrace 1.0.3 is broken.
2284 # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2285 # safe to save and restore CFLAGS here.
2286 saved_CFLAGS=$CFLAGS
2287 CFLAGS="$CFLAGS -Werror"
2288 AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2289 [#include <babeltrace/babeltrace.h>
2290 #include <babeltrace/ctf/events.h>
2291 #include <babeltrace/ctf/iterator.h>],
2292 [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2293 struct bt_ctf_event *event = NULL;
2294 const struct bt_definition *scope;
2296 pos->type = BT_SEEK_BEGIN;
2297 bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2298 scope = bt_ctf_get_top_level_scope (event,
2299 BT_STREAM_EVENT_HEADER);
2300 bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2302 CFLAGS=$saved_CFLAGS
2304 if test "$HAVE_LIBBABELTRACE" != yes; then
2305 if test "$with_babeltrace" = yes; then
2306 AC_MSG_ERROR([babeltrace is missing or unusable])
2308 AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2313 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2314 # to an empty version.
2320 if test "${nativefile}" != ""; then
2321 case "${nativefile}" in
2322 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2323 * ) GDB_NM_FILE="${nativefile}"
2325 files="${files} ${GDB_NM_FILE}"
2326 links="${links} nm.h"
2327 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2329 AC_SUBST(GDB_NM_FILE)
2331 dnl Add dependency for xsltproc if building with maintainer-mode enabled.
2332 AC_PATH_PROGS(XSLTPROC, xsltproc, missing)
2333 if test "x$USE_MAINTAINER_MODE" = xyes; then
2334 if test "${XSLTPROC}" = missing; then
2335 AC_ERROR(unable to find xsltproc. maintainer-mode requires xsltproc.)
2340 AC_LINK_FILES($files, $links)
2342 dnl Check for exe extension set on certain hosts (e.g. Win32)
2345 dnl Detect the character set used by this host.
2346 dnl At the moment, we just assume it's UTF-8.
2347 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2348 [Define to be a string naming the default host character set.])
2350 if $development; then
2351 AC_DEFINE(GDB_SELF_TEST, 1,
2352 [Define if self-testing features should be enabled])
2355 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2356 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2357 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2358 AC_CONFIG_FILES([Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile],
2360 case x$CONFIG_HEADERS in
2361 xconfig.h:config.in)