1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright (C) 1995-2016 Free Software Foundation, Inc.
4 dnl This file is part of GDB.
6 dnl This program is free software; you can redistribute it and/or modify
7 dnl it under the terms of the GNU General Public License as published by
8 dnl the Free Software Foundation; either version 3 of the License, or
9 dnl (at your option) any later version.
11 dnl This program is distributed in the hope that it will be useful,
12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 dnl GNU General Public License for more details.
16 dnl You should have received a copy of the GNU General Public License
17 dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
19 dnl Process this file with autoconf to produce a configure script.
23 AC_CONFIG_HEADER(config.h:config.in)
26 # Set the 'development' global.
27 . $srcdir/../bfd/development.sh
32 AC_USE_SYSTEM_EXTENSIONS
41 # See if we are building with C++, and substitute COMPILER.
44 # Dependency checking.
46 ZW_PROG_COMPILER_DEPENDENCIES([CC])
48 # Check for the 'make' the user wants to use.
49 AC_CHECK_PROGS(MAKE, make)
51 case "`$MAKE --version 2>&1 | sed 1q`" in
56 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
59 gnulib_extra_configure_args=
60 # If large-file support is disabled, make sure gnulib does the same.
61 if test "$enable_largefile" = no; then
62 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
65 # Configure gnulib. We need to build gnulib under some other
66 # directory not "gnulib", to avoid the problem of both GDB and
67 # GDBserver wanting to build it in the same directory, when building
69 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"],
70 ["$gnulib_extra_configure_args"])
72 dnl List of object files and targets accumulated by configure.
84 dnl Set up for gettext.
85 ZW_GNU_GETTEXT_SISTER_DIR
87 localedir='${datadir}/locale'
90 if test x"$USE_NLS" = xyes; then
91 CONFIG_ALL="$CONFIG_ALL all-po"
92 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
93 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
94 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
97 GNULIB=build-gnulib/import
99 # For Makefile dependencies.
101 if test x"$STDINT_H" != x; then
102 GNULIB_STDINT_H=$GNULIB/$STDINT_H
104 AC_SUBST(GNULIB_STDINT_H)
107 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
110 # We never need to detect it in this sub-configure.
111 # But preserve it for config.status --recheck.
113 [Parent configure detects if it is of sufficient version.])
114 AC_ARG_VAR(MAKEINFOFLAGS,
115 [Parameters for MAKEINFO.])
117 MAKEINFO_EXTRA_FLAGS=""
118 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
119 [echo '@clicksequence{a @click{} b}' >conftest.texinfo
120 if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
121 gdb_cv_have_makeinfo_click=yes
123 gdb_cv_have_makeinfo_click=no
125 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
126 MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
128 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
130 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
131 [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
134 # We can't pass paths as command line arguments.
135 # Mingw32 tries to be clever and will convert the paths for us.
136 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
137 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
138 # This breaks GDB's relocatable path conversions since paths passed in
139 # config.h would not get so translated, the path prefixes no longer match.
140 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
142 # GDB's datadir relocation
144 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
145 [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
148 AC_ARG_WITH(relocated-sources,
149 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
150 [reloc_srcdir="${withval}"
151 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
152 [Relocated directory for source files. ])
155 AC_MSG_CHECKING([for default auto-load directory])
156 AC_ARG_WITH(auto-load-dir,
157 AS_HELP_STRING([--with-auto-load-dir=PATH],
158 [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
159 [with_auto_load_dir='$debugdir:$datadir/auto-load'])
160 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
161 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
162 [Directories from which to load auto-loaded scripts.])
163 AC_MSG_RESULT([$with_auto_load_dir])
165 AC_MSG_CHECKING([for default auto-load safe-path])
166 AC_ARG_WITH(auto-load-safe-path,
167 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
168 [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
169 AS_HELP_STRING([--without-auto-load-safe-path],
170 [do not restrict auto-loaded files locations]),
171 [if test "$with_auto_load_safe_path" = "no"; then
172 with_auto_load_safe_path="/"
174 [with_auto_load_safe_path="$with_auto_load_dir"])
175 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
176 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
177 [Directories safe to hold auto-loaded files.])
178 AC_MSG_RESULT([$with_auto_load_safe_path])
180 AC_CONFIG_SUBDIRS(testsuite)
182 # Check whether to support alternative target configurations
183 AC_ARG_ENABLE(targets,
184 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
185 [case "${enableval}" in
186 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
188 no) enable_targets= ;;
189 *) enable_targets=$enableval ;;
192 # Check whether to enable 64-bit support on 32-bit hosts
193 AC_ARG_ENABLE(64-bit-bfd,
194 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
195 [case "${enableval}" in
198 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
199 esac],[want64=false])dnl
201 # Provide defaults for some variables set by the per-host and per-target
203 gdb_host_obs=posix-hdep.o
205 if test "${target}" = "${host}"; then
211 . $srcdir/configure.host
213 # Add in the common host objects.
214 . $srcdir/common/common.host
215 gdb_host_obs="$gdb_host_obs $common_host_obs"
217 # Accumulate some settings from configure.tgt over all enabled targets
221 HAVE_NATIVE_GCORE_TARGET=
223 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
225 if test "$targ_alias" = "all"; then
228 # Canonicalize the secondary target names.
229 result=`$ac_config_sub $targ_alias 2>/dev/null`
230 if test -n "$result"; then
236 . ${srcdir}/configure.tgt
238 AS_IF([test -z "${gdb_target_obs}"],
239 [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
241 # Target-specific object files
242 for i in ${gdb_target_obs}; do
243 case " $TARGET_OBS " in
246 TARGET_OBS="$TARGET_OBS ${i}"
251 # Check whether this target needs 64-bit CORE_ADDR
252 if test x${want64} = xfalse; then
253 . ${srcdir}/../bfd/config.bfd
256 # Check whether this target is native and supports gcore.
257 if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
258 && $gdb_have_gcore; then
259 HAVE_NATIVE_GCORE_TARGET=1
264 if test x${all_targets} = xtrue; then
266 # We want all 64-bit targets if we either:
267 # - run on a 64-bit host or
268 # - already require 64-bit support for some other target or
269 # - the --enable-64-bit-bfd option was supplied
270 # Otherwise we only support all 32-bit targets.
272 # NOTE: This test must be in sync with the corresponding
275 if test x${want64} = xfalse; then
276 AC_CHECK_SIZEOF(long)
277 if test "x${ac_cv_sizeof_long}" = "x8"; then
281 if test x${want64} = xtrue; then
282 TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
284 TARGET_OBS='$(ALL_TARGET_OBS)'
289 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
291 # For other settings, only the main target counts.
295 targ=$target; . ${srcdir}/configure.tgt
297 # Fetch the default architecture and default target vector from BFD.
298 targ=$target; . $srcdir/../bfd/config.bfd
300 # We only want the first architecture, so strip off the others if
301 # there is more than one.
302 targ_archs=`echo $targ_archs | sed 's/ .*//'`
304 if test "x$targ_archs" != x; then
305 AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
306 [Define to BFD's default architecture. ])
308 if test "x$targ_defvec" != x; then
309 AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
310 [Define to BFD's default target vector. ])
313 # The CLI cannot be disabled yet, but may be in the future.
316 AC_ARG_ENABLE(gdbcli,
317 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
322 AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
324 AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
327 if test x"$enable_gdbcli" = xyes; then
328 if test -d $srcdir/cli; then
329 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
330 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
331 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
332 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
338 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
343 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
346 if test x"$enable_gdbmi" = xyes; then
347 if test -d $srcdir/mi; then
348 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
349 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
350 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
351 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
357 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
362 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
363 esac],enable_tui=auto)
367 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
372 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
374 [if test -d $srcdir/gdbtk; then
379 # We unconditionally disable gdbtk tests on selected platforms.
382 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
386 # Libunwind support for ia64.
388 AC_ARG_WITH(libunwind-ia64,
389 AS_HELP_STRING([--with-libunwind-ia64],
390 [use libunwind frame unwinding for ia64 targets]),,
391 [with_libunwind_ia64=auto])
393 # Backward compatibility option.
394 if test "${with_libunwind+set}" = set; then
395 if test x"$with_libunwind_ia64" != xauto; then
397 [option --with-libunwind is deprecated, use --with-libunwind-ia64])
399 AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
400 with_libunwind_ia64="$with_libunwind"
403 case "$with_libunwind_ia64" in
407 AC_CHECK_HEADERS(libunwind-ia64.h)
408 with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
412 [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
416 if test x"$with_libunwind_ia64" = xyes; then
417 AC_CHECK_HEADERS(libunwind-ia64.h)
418 if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
419 AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
421 CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
422 CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
423 CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
427 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
430 if test "$opt_curses" = "yes"; then
435 AC_ARG_ENABLE(profiling,
436 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
441 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
443 [enable_profiling=no])
445 AC_CHECK_FUNCS(monstartup _mcleanup)
446 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
451 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
452 if test $ac_cv_var__etext = yes; then
453 AC_DEFINE(HAVE__ETEXT, 1,
454 [Define to 1 if your system has the _etext variable. ])
456 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
461 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
462 if test $ac_cv_var_etext = yes; then
463 AC_DEFINE(HAVE_ETEXT, 1,
464 [Define to 1 if your system has the etext variable. ])
466 if test "$enable_profiling" = yes ; then
467 if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
468 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
472 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
474 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
475 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
476 ac_cv_cc_supports_pg=no)])
478 if test $ac_cv_cc_supports_pg = no; then
479 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
485 ACX_PKGVERSION([GDB])
486 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
487 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
488 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
490 # --------------------- #
491 # Checks for programs. #
492 # --------------------- #
500 AC_CHECK_TOOL(AR, ar)
501 AC_CHECK_TOOL(DLLTOOL, dlltool)
502 AC_CHECK_TOOL(WINDRES, windres)
506 # Needed for GNU Hurd hosts.
507 AC_CHECK_TOOL(MIG, mig)
508 if test x"$MIG" = x; then
509 AC_MSG_ERROR([MIG not found but required for $host hosts])
514 # ---------------------- #
515 # Checks for libraries. #
516 # ---------------------- #
518 # We might need to link with -lm; most simulators need it.
519 AC_CHECK_LIB(m, main)
521 # We need to link with -lw to get `wctype' on Solaris before Solaris
522 # 2.6. Solaris 2.6 and beyond have this function in libc, and have a
523 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
524 # is known to have this problem). Therefore we avoid libw if we can.
525 AC_CHECK_FUNC(wctype, [],
526 [AC_CHECK_LIB(w, wctype)])
528 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
529 AC_SEARCH_LIBS(gethostbyname, nsl)
531 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
532 AC_SEARCH_LIBS(socketpair, socket)
534 # Link in zlib if we can. This allows us to read compressed debug sections.
537 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
538 AC_SEARCH_LIBS(kinfo_getvmmap, util,
539 [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
540 [Define to 1 if your system has the kinfo_getvmmap function. ])])
544 # GDB may fork/exec the iconv program to get the list of supported character
545 # sets. Allow the user to specify where to find it.
546 # There are several factors affecting the choice of option name:
547 # - There is already --with-libiconv-prefix but we can't use it, it specifies
548 # the build-time location of libiconv files.
549 # - The program we need to find is iconv, which comes with glibc. The user
550 # doesn't necessarily have libiconv installed. Therefore naming this
551 # --with-libiconv-foo feels wrong.
552 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
553 # defined to work on directories not files (though it really doesn't know
555 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
556 # with --with-libiconv-prefix.
557 # Putting these together is why the option name is --with-iconv-bin.
559 AC_ARG_WITH(iconv-bin,
560 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
561 [iconv_bin="${withval}"
562 AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
563 [Path of directory of iconv program.])
564 GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
567 # For the TUI, we need enhanced curses functionality.
568 if test x"$enable_tui" != xno; then
573 if test x"$prefer_curses" = xyes; then
574 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
575 # curses library because the latter might not provide all the
576 # functionality we need. However, this leads to problems on systems
577 # where the linker searches /usr/local/lib, but the compiler doesn't
578 # search /usr/local/include, if ncurses is installed in /usr/local. A
579 # default installation of ncurses on alpha*-dec-osf* will lead to such
581 AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
583 if test "$ac_cv_search_waddstr" != no; then
588 # Check whether we should enable the TUI, but only do so if we really
590 if test x"$enable_tui" != xno; then
591 if test -d $srcdir/tui; then
592 if test "$curses_found" != no; then
593 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
594 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
595 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
596 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
598 if test x"$enable_tui" = xyes; then
599 AC_MSG_ERROR([no enhanced curses library found; disable TUI])
601 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
607 # Since GDB uses Readline, we need termcap functionality. In many
608 # cases this will be provided by the curses library, but some systems
609 # have a seperate termcap library, or no curses library at all.
613 if test -d $srcdir/libtermcap; then
614 LIBS="../libtermcap/libtermcap.a $LIBS"
615 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
618 ac_cv_search_tgetent="none required"
622 # These are the libraries checked by Readline.
623 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
625 if test "$ac_cv_search_tgetent" = no; then
626 CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
629 AC_ARG_WITH([system-readline],
630 [AS_HELP_STRING([--with-system-readline],
631 [use installed readline library])])
633 if test "$with_system_readline" = yes; then
637 READLINE_TEXI_INCFLAG=
639 READLINE='$(READLINE_DIR)/libreadline.a'
640 READLINE_DEPS='$(READLINE)'
641 READLINE_CFLAGS='-I$(READLINE_SRC)/..'
642 READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
645 AC_SUBST(READLINE_DEPS)
646 AC_SUBST(READLINE_CFLAGS)
647 AC_SUBST(READLINE_TEXI_INCFLAG)
649 # Generate jit-reader.h
651 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
654 AC_CHECK_SIZEOF(unsigned long long)
655 AC_CHECK_SIZEOF(unsigned long)
656 AC_CHECK_SIZEOF(unsigned __int128)
658 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
659 TARGET_PTR="unsigned long"
660 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
661 TARGET_PTR="unsigned long long"
662 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
663 TARGET_PTR="unsigned __int128"
665 TARGET_PTR="unsigned long"
669 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
671 AC_SEARCH_LIBS(dlopen, dl)
673 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
674 [directory to load the JIT readers from],
678 AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
679 [], [with_expat=auto])
680 AC_MSG_CHECKING([whether to use expat])
681 AC_MSG_RESULT([$with_expat])
683 if test "${with_expat}" = no; then
684 AC_MSG_WARN([expat support disabled; some features may be unavailable.])
687 AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
688 [XML_Parser p = XML_ParserCreate (0);])
689 if test "$HAVE_LIBEXPAT" != yes; then
690 if test "$with_expat" = yes; then
691 AC_MSG_ERROR([expat is missing or unusable])
693 AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
697 LIBS="$LIBS $LIBEXPAT"
698 AC_CHECK_FUNCS(XML_StopParser)
703 # --------------------- #
704 # Check for libpython. #
705 # --------------------- #
707 dnl Utility to simplify finding libpython.
709 dnl $2 = the shell variable to assign the result to
710 dnl If libpython is found we store $version here.
711 dnl $3 = additional flags to add to CPPFLAGS
712 dnl $4 = additional flags to add to LIBS
714 AC_DEFUN([AC_TRY_LIBPYTHON],
717 define([have_libpython_var],$2)
720 AC_MSG_CHECKING([for ${version}])
721 save_CPPFLAGS=$CPPFLAGS
723 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
724 LIBS="$LIBS $new_LIBS"
725 found_usable_python=no
726 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
727 [[Py_Initialize ();]]),
728 [have_libpython_var=${version}
729 found_usable_python=yes
730 PYTHON_CPPFLAGS=$new_CPPFLAGS
731 PYTHON_LIBS=$new_LIBS])
732 CPPFLAGS=$save_CPPFLAGS
734 AC_MSG_RESULT([${found_usable_python}])
737 dnl There are several different values for --with-python:
739 dnl no - Don't include python support.
740 dnl yes - Include python support, error if it's missing.
741 dnl If we find python in $PATH, use it to fetch configure options,
742 dnl otherwise assume the compiler can find it with no help from us.
743 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
744 dnl auto - Same as "yes", but if python is missing from the system,
745 dnl fall back to "no".
746 dnl /path/to/python/exec-prefix -
747 dnl Use the python located in this directory.
748 dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
749 dnl the compilation parameters. Otherwise use
750 dnl -I/path/to/python/exec-prefix/include,
751 dnl -L/path/to/python/exec-prefix/lib.
752 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
753 dnl NOTE: This case is historical. It is what was done for 7.0/7.1
754 dnl but is deprecated.
755 dnl /path/to/python/executable -
756 dnl Run python-config.py with this version of python to fetch the
757 dnl compilation parameters.
758 dnl NOTE: This needn't be the real python executable.
759 dnl In a cross-compilation scenario (build != host), this could be
760 dnl a shell script that provides what python-config.py provides for
761 dnl --ldflags, --includes, --exec-prefix.
762 dnl python-executable -
763 dnl Find python-executable in $PATH, and then handle the same as
764 dnl /path/to/python/executable.
766 dnl If a python program is specified, it is used to run python-config.py and
767 dnl is passed --ldflags, --includes, --exec-prefix.
770 AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
771 [], [with_python=auto])
772 AC_MSG_CHECKING([whether to use python])
773 AC_MSG_RESULT([$with_python])
775 if test "${with_python}" = no; then
776 AC_MSG_WARN([python support disabled; some features may be unavailable.])
779 case "${with_python}" in
780 [[\\/]]* | ?:[[\\/]]*)
781 if test -d ${with_python}; then
782 # Assume the python binary is ${with_python}/bin/python.
783 python_prog="${with_python}/bin/python"
785 # If python does not exit ${with_python}/bin, then try in
786 # ${with_python}. On Windows/MinGW, this is where the Python
788 if test ! -x "${python_prog}"; then
789 python_prog="${with_python}/python"
792 if test ! -x "${python_prog}"; then
793 # Fall back to gdb 7.0/7.1 behaviour.
795 python_prefix=${with_python}
797 elif test -x "${with_python}"; then
798 # While we can't run python compiled for $host (unless host == build),
799 # the user could write a script that provides the needed information,
800 # so we support that.
801 python_prog=${with_python}
804 AC_ERROR(invalid value for --with-python)
808 # Disallow --with-python=foo/bar.
809 AC_ERROR(invalid value for --with-python)
812 # The user has either specified auto, yes, or the name of the python
813 # program assumed to be in $PATH.
815 case "${with_python}" in
817 if test ${build} = ${host}; then
818 AC_PATH_PROG(python_prog_path, python, missing)
819 if test "${python_prog_path}" = missing; then
822 python_prog=${python_prog_path}
825 # Not much we can do except assume the cross-compiler will find the
831 # While we can't run python compiled for $host (unless host == build),
832 # the user could write a script that provides the needed information,
833 # so we support that.
834 python_prog="${with_python}"
835 AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
836 if test "${python_prog_path}" = missing; then
837 AC_ERROR(unable to find python program ${python_prog})
843 if test "${python_prog}" != missing; then
844 # We have a python program to use, but it may be too old.
845 # Don't flag an error for --with-python=auto (the default).
846 have_python_config=yes
847 python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
848 if test $? != 0; then
849 have_python_config=failed
850 if test "${with_python}" != auto; then
851 AC_ERROR(failure running python-config --includes)
854 python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
855 if test $? != 0; then
856 have_python_config=failed
857 if test "${with_python}" != auto; then
858 AC_ERROR(failure running python-config --ldflags)
861 python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
862 if test $? != 0; then
863 have_python_config=failed
864 if test "${with_python}" != auto; then
865 AC_ERROR(failure running python-config --exec-prefix)
869 # We do not have a python executable we can use to determine where
870 # to find the Python headers and libs. We cannot guess the include
871 # path from the python_prefix either, because that include path
872 # depends on the Python version. So, there is nothing much we can
873 # do except assume that the compiler will be able to find those files.
876 have_python_config=no
879 # If we have python-config, only try the configuration it provides.
880 # Otherwise fallback on the old way of trying different versions of
884 if test "${have_python_config}" = yes; then
885 # Determine the Python version by extracting "-lpython<version>"
886 # part of the python_libs. <version> is usually X.Y with X and Y
887 # being decimal numbers, but can also be XY (seen on Windows).
889 # The extraction is performed using sed with a regular expression.
890 # Initially, the regexp used was using the '?' quantifier to make
891 # the dot in the version number optional. Unfortunately, this
892 # does not work with non-GNU versions of sed because, because of
893 # what looks like a limitation (the '?' quantifier does not work
894 # with back-references). We work around this limitation by using
895 # the '*' quantifier instead. It means that, in theory, we might
896 # match unexpected version strings such as "-lpython2..7", but
897 # this seems unlikely in practice. And even if that happens,
898 # an error will be triggered later on, when checking that version
900 python_version=`echo " ${python_libs} " \
901 | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
902 case "${python_version}" in
904 AC_TRY_LIBPYTHON(${python_version}, have_libpython,
905 ${python_includes}, ${python_libs})
908 AC_MSG_ERROR([unable to determine python version from ${python_libs}])
911 elif test "${have_python_config}" != failed; then
912 if test "${have_libpython}" = no; then
913 AC_TRY_LIBPYTHON(python2.7, have_libpython,
914 ${python_includes}, "${python_libs} -lpython2.7")
916 if test "${have_libpython}" = no; then
917 AC_TRY_LIBPYTHON(python2.6, have_libpython,
918 ${python_includes}, "${python_libs} -lpython2.6")
920 if test ${have_libpython} = no; then
921 AC_TRY_LIBPYTHON(python2.5, have_libpython,
922 ${python_includes}, "${python_libs} -lpython2.5")
924 if test ${have_libpython} = no; then
925 AC_TRY_LIBPYTHON(python2.4, have_libpython,
926 ${python_includes}, "${python_libs} -lpython2.4")
929 if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
930 AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
931 elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
932 AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
933 elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
934 AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
935 elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
936 AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
939 if test "${have_libpython}" = no; then
940 case "${with_python}" in
942 AC_MSG_ERROR([python is missing or unusable])
945 AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
948 AC_MSG_ERROR([no usable python found at ${with_python}])
952 if test -n "${python_prefix}"; then
953 AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
954 [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
955 GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
960 if test "${have_libpython}" != no; then
961 AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
962 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
963 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
964 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
965 CONFIG_INSTALL="$CONFIG_INSTALL install-python"
966 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
968 # Flags needed to compile Python code (taken from python-config --cflags).
969 # We cannot call python-config directly because it will output whatever was
970 # used when compiling the Python interpreter itself, including flags which
971 # would make the python-related objects be compiled differently from the
972 # rest of GDB (e.g., -O2 and -fPIC).
973 if test "${GCC}" = yes; then
974 tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
977 if test "x${tentative_python_cflags}" != x; then
978 AC_MSG_CHECKING(compiler flags for python code)
979 for flag in ${tentative_python_cflags}; do
980 # Check that the compiler accepts it
981 saved_CFLAGS="$CFLAGS"
982 CFLAGS="$CFLAGS $flag"
983 AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
984 CFLAGS="$saved_CFLAGS"
986 AC_MSG_RESULT(${PYTHON_CFLAGS})
989 # On x64 Windows, Python's include headers, and pyconfig.h in
990 # particular, rely on MS_WIN64 macro to detect that it's a 64bit
991 # version of Windows. Unfortunately, MS_WIN64 is only defined if
992 # _MSC_VER, a Microsoft-specific macro, is defined. So, when
993 # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
994 # The issue was reported to the Python community, but still isn't
995 # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
999 if test "${GCC}" = yes; then
1000 CPPFLAGS="$CPPFLAGS -DMS_WIN64"
1005 # Note that "python -m threading" cannot be used to check for
1006 # threading support due to a bug in Python 2.7.3
1007 # (http://bugs.python.org/issue15567).
1008 AC_MSG_CHECKING(whether python supports threads)
1009 saved_CPPFLAGS="${CPPFLAGS}"
1010 CPPFLAGS="${PYTHON_CPPFLAGS}"
1011 # Note that the test is reversed so that python_has_threads=yes on
1012 # unexpected failures.
1013 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1018 ]]), [python_has_threads=no], [python_has_threads=yes])
1019 AC_MSG_RESULT(${python_has_threads})
1020 CPPFLAGS="${saved_CPPFLAGS}"
1022 # Even if Python support is not compiled in, we need to have this file
1023 # included so that the "python" command, et.al., still exists.
1024 CONFIG_OBS="$CONFIG_OBS python.o"
1025 CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1028 # Work around Python http://bugs.python.org/issue10112. See also
1029 # http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
1030 # no effect. Note that the only test after this that uses Python is
1031 # the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
1032 # run without -export-dynamic too.
1033 PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
1035 AC_SUBST(PYTHON_CFLAGS)
1036 AC_SUBST(PYTHON_CPPFLAGS)
1037 AC_SUBST(PYTHON_LIBS)
1038 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
1040 # -------------------- #
1041 # Check for libguile. #
1042 # -------------------- #
1044 dnl Utility to simplify finding libguile.
1045 dnl $1 = pkg-config-program
1046 dnl $2 = space-separate list of guile versions to try
1047 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1048 dnl $4 = the shell variable to assign the result to
1049 dnl If libguile is found we store "yes" here.
1051 AC_DEFUN([AC_TRY_LIBGUILE],
1054 guile_version_list=$2
1056 define([have_libguile_var],$4)
1057 found_usable_guile=checking
1058 AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1059 for guile_version in ${guile_version_list}; do
1060 ${pkg_config} --exists ${guile_version} 2>/dev/null
1061 if test $? != 0; then
1064 dnl pkg-config says the package exists, so if we get an error now,
1066 new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1067 if test $? != 0; then
1068 AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1070 new_LIBS=`${pkg_config} --libs ${guile_version}`
1071 if test $? != 0; then
1072 AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1074 dnl If we get this far, great.
1075 found_usable_guile=${guile_version}
1078 if test "${found_usable_guile}" = "checking"; then
1079 if test "${flag_errors}" = "yes"; then
1080 AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1082 found_usable_guile=no
1085 dnl One final sanity check.
1086 dnl The user could have said --with-guile=python-2.7.
1087 if test "${found_usable_guile}" != no; then
1088 save_CPPFLAGS=$CPPFLAGS
1090 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1091 LIBS="$LIBS $new_LIBS"
1092 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "libguile.h"]],
1093 [[scm_init_guile ();]]),
1094 [have_libguile_var=yes
1095 GUILE_CPPFLAGS=$new_CPPFLAGS
1096 GUILE_LIBS=$new_LIBS],
1097 [found_usable_guile=no])
1098 dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1099 AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1100 AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1101 [Define if Guile supports manual finalization.])
1103 CPPFLAGS=$save_CPPFLAGS
1105 if test "${found_usable_guile}" = no; then
1106 if test "${flag_errors}" = yes; then
1107 AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1111 AC_MSG_RESULT([${found_usable_guile}])
1114 dnl There are several different values for --with-guile:
1116 dnl no - Don't include guile support.
1117 dnl yes - Include guile support, error if it's missing.
1118 dnl The pkg-config program must be in $PATH.
1119 dnl auto - Same as "yes", but if guile is missing from the system,
1120 dnl fall back to "no".
1121 dnl guile-version [guile-version-choice-2 ...] -
1122 dnl A space-separated list of guile package versions to try.
1123 dnl These are passed to pkg-config as-is.
1124 dnl E.g., guile-2.0 or guile-2.2-uninstalled
1125 dnl This requires making sure PKG_CONFIG_PATH is set appropriately.
1126 dnl /path/to/pkg-config -
1127 dnl Use this pkg-config program.
1128 dnl NOTE: This needn't be the "real" pkg-config program.
1129 dnl It could be a shell script. It is invoked as:
1130 dnl pkg-config --exists $version
1131 dnl pkg-config --cflags $version
1132 dnl pkg-config --libs $version
1133 dnl pkg-config --variable guild $version
1134 dnl The script will be called with $version having each value in
1135 dnl $try_guile_versions until --exists indicates success.
1138 AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1139 [], [with_guile=auto])
1140 AC_MSG_CHECKING([whether to use guile])
1141 AC_MSG_RESULT([$with_guile])
1143 dnl We check guile with pkg-config.
1144 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1146 try_guile_versions="guile-2.2 guile-2.0"
1148 case "${with_guile}" in
1150 AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1153 if test "${pkg_config_prog_path}" = "missing"; then
1154 AC_MSG_WARN([pkg-config not found, guile support disabled])
1156 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1160 if test "${pkg_config_prog_path}" = "missing"; then
1161 AC_MSG_ERROR([pkg-config not found])
1163 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1165 [[\\/]]* | ?:[[\\/]]*)
1166 if test -x "${with_guile}"; then
1167 AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1169 AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1173 # Disallow --with=guile="" and --with-guile=foo/bar.
1174 AC_MSG_ERROR([invalid value for --with-guile])
1177 # A space separate list of guile versions to try, in order.
1178 if test "${pkg_config_prog_path}" = "missing"; then
1179 AC_MSG_ERROR([pkg-config not found])
1181 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1185 if test "${have_libguile}" != no; then
1186 dnl Get the name of the 'guild' program.
1187 case "${with_guile}" in
1188 [[\\/]]* | ?:[[\\/]]*)
1189 GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1192 GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1196 dnl Make sure guild can handle this host.
1197 GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1198 dnl If not, disable guile support.
1199 if test "$ac_cv_guild_ok" = no; then
1201 AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1205 if test "${have_libguile}" != no; then
1206 AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1207 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1208 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1209 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1210 CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1211 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1213 dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1215 save_CPPFLAGS="$CPPFLAGS"
1217 CPPFLAGS="$GUILE_CPPFLAGS"
1218 AC_CHECK_FUNCS([scm_new_smob])
1220 CPPFLAGS="$save_CPPFLAGS"
1222 # Even if Guile support is not compiled in, we need to have these files
1224 CONFIG_OBS="$CONFIG_OBS guile.o"
1225 CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1227 AC_SUBST(GUILE_CPPFLAGS)
1228 AC_SUBST(GUILE_LIBS)
1229 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1231 # --------------------- #
1232 # Check for libmcheck. #
1233 # --------------------- #
1235 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1236 # but turn it off if Python is enabled with threads, since -lmcheck is
1237 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1239 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1240 && $development; then
1241 libmcheck_default=yes
1243 libmcheck_default=no
1245 GDB_AC_LIBMCHECK(${libmcheck_default})
1247 if test "$ENABLE_LIBMCHECK" = "yes" \
1248 -a "${have_libpython}" != "no" \
1249 -a "${python_has_threads}" = "yes" ; then
1250 AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1253 AC_ARG_WITH(intel_pt,
1254 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
1255 [], [with_intel_pt=auto])
1256 AC_MSG_CHECKING([whether to use intel pt])
1257 AC_MSG_RESULT([$with_intel_pt])
1259 if test "${with_intel_pt}" = no; then
1260 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
1263 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1264 #include <linux/perf_event.h>
1265 #ifndef PERF_ATTR_SIZE_VER5
1268 ]]), [perf_event=yes], [perf_event=no])
1269 if test "$perf_event" != yes; then
1270 if test "$with_intel_pt" = yes; then
1271 AC_MSG_ERROR([linux/perf_event.h missing or too old])
1273 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
1277 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
1278 if test "$HAVE_LIBIPT" != yes; then
1279 if test "$with_intel_pt" = yes; then
1280 AC_MSG_ERROR([libipt is missing or unusable])
1282 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
1287 # ------------------------- #
1288 # Checks for header files. #
1289 # ------------------------- #
1292 # elf_hp.h is for HP/UX 64-bit shared library support.
1293 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1296 sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1297 sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1298 sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1299 termios.h termio.h \
1302 AC_CHECK_HEADERS(sys/proc.h, [], [],
1303 [#if HAVE_SYS_PARAM_H
1304 # include <sys/param.h>
1307 AC_CHECK_HEADERS(sys/user.h, [], [],
1308 [#if HAVE_SYS_PARAM_H
1309 # include <sys/param.h>
1313 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
1314 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
1315 # think that we don't have <curses.h> if we're using GCC.
1318 if test "$GCC" = yes; then
1319 AC_DEFINE(_MSE_INT_H, 1,
1320 [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
1321 Solaris 2.[789] when using GCC. ])
1324 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
1325 AC_CHECK_HEADERS(term.h, [], [],
1327 # include <curses.h>
1331 # ------------------------- #
1332 # Checks for declarations. #
1333 # ------------------------- #
1337 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1340 # ----------------------- #
1341 # Checks for structures. #
1342 # ----------------------- #
1344 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1346 # ------------------ #
1347 # Checks for types. #
1348 # ------------------ #
1350 AC_CHECK_TYPES(socklen_t, [], [],
1351 [#include <sys/types.h>
1352 #include <sys/socket.h>
1355 # ------------------------------------- #
1356 # Checks for compiler characteristics. #
1357 # ------------------------------------- #
1363 # ------------------------------ #
1364 # Checks for library functions. #
1365 # ------------------------------ #
1369 AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
1370 pipe poll pread pread64 pwrite resize_term \
1371 sbrk setpgid setpgrp setsid \
1372 sigaction sigprocmask sigsetmask socketpair \
1373 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1374 setrlimit getrlimit posix_madvise waitpid \
1375 ptrace64 sigaltstack mkdtemp setns])
1379 # Check the return and argument types of ptrace.
1382 dnl AC_FUNC_SETPGRP does not work when cross compiling
1383 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1384 if test "$cross_compiling" = no; then
1387 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1391 if (setpgrp(1,1) == -1)
1395 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1396 if test $ac_cv_func_setpgrp_void = yes; then
1397 AC_DEFINE(SETPGRP_VOID, 1)
1401 # Assume we'll default to using the included libiberty regex.
1402 gdb_use_included_regex=yes
1404 # However, if the system regex is GNU regex, then default to *not*
1405 # using the included regex.
1408 [gdb_cv_have_gnu_regex],
1410 [#include <gnu-versions.h>],
1411 [#define REGEX_INTERFACE_VERSION 1
1412 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1413 # error "Version mismatch"
1415 gdb_cv_have_gnu_regex=yes,
1416 gdb_cv_have_gnu_regex=no)])
1417 if test $gdb_cv_have_gnu_regex = yes; then
1418 gdb_use_included_regex=no
1421 AC_ARG_WITH(included-regex,
1422 AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1423 gdb_with_regex=$withval,
1424 gdb_with_regex=$gdb_use_included_regex)
1425 if test "$gdb_with_regex" = yes; then
1426 AC_DEFINE(USE_INCLUDED_REGEX, 1,
1427 [Define to 1 if the regex included in libiberty should be used.])
1430 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1431 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1432 [#include <sys/param.h>
1433 #include <sys/proc.h>
1436 # See if <sys/lwp.h> defines `struct lwp`.
1437 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1438 [AC_TRY_COMPILE([#include <sys/param.h>
1439 #include <sys/lwp.h>], [struct lwp l;],
1440 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1441 if test $gdb_cv_struct_lwp = yes; then
1442 AC_DEFINE(HAVE_STRUCT_LWP, 1,
1443 [Define to 1 if your system has struct lwp.])
1446 # See if <machine/reg.h> degines `struct reg'.
1447 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1448 [AC_TRY_COMPILE([#include <sys/types.h>
1449 #include <machine/reg.h>], [struct reg r;],
1450 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1451 if test $gdb_cv_struct_reg = yes; then
1452 AC_DEFINE(HAVE_STRUCT_REG, 1,
1453 [Define to 1 if your system has struct reg in <machine/reg.h>.])
1456 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1457 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1458 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1459 [#include <sys/types.h>
1460 #include <machine/reg.h>])
1462 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1463 # Older amd64 Linux's don't have the fs_base and gs_base members of
1464 # `struct user_regs_struct'.
1465 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1466 [], [], [#include <sys/user.h>])
1468 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1469 AC_MSG_CHECKING(for PTRACE_GETREGS)
1470 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1471 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1473 [gdb_cv_have_ptrace_getregs=yes],
1474 [gdb_cv_have_ptrace_getregs=no])])
1475 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1476 if test $gdb_cv_have_ptrace_getregs = yes; then
1477 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1478 [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1481 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1482 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1483 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1484 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1485 [PTRACE_GETFPXREGS;],
1486 [gdb_cv_have_ptrace_getfpxregs=yes],
1487 [gdb_cv_have_ptrace_getfpxregs=no])])
1488 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1489 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1490 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1491 [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1494 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1495 AC_MSG_CHECKING(for PT_GETDBREGS)
1496 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1497 [AC_TRY_COMPILE([#include <sys/types.h>
1498 #include <sys/ptrace.h>],
1500 [gdb_cv_have_pt_getdbregs=yes],
1501 [gdb_cv_have_pt_getdbregs=no])])
1502 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1503 if test $gdb_cv_have_pt_getdbregs = yes; then
1504 AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1505 [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1508 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1509 AC_MSG_CHECKING(for PT_GETXMMREGS)
1510 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1511 [AC_TRY_COMPILE([#include <sys/types.h>
1512 #include <sys/ptrace.h>],
1514 [gdb_cv_have_pt_getxmmregs=yes],
1515 [gdb_cv_have_pt_getxmmregs=no])])
1516 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1517 if test $gdb_cv_have_pt_getxmmregs = yes; then
1518 AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1519 [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1522 # See if <sys/ptrace.h> supports LWP names on FreeBSD
1523 # Older FreeBSD versions don't have the pl_tdname member of
1524 # `struct ptrace_lwpinfo'.
1525 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
1526 [#include <sys/ptrace.h>])
1529 # Detect which type of /proc is in use, such as for Solaris.
1531 if test "${target}" = "${host}"; then
1533 *-*-sysv4.2* | *-*-sysv5* )
1534 AC_DEFINE(NEW_PROC_API, 1,
1535 [Define if you want to use new multi-fd /proc interface.])
1537 *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1538 AC_DEFINE(NEW_PROC_API, 1,
1539 [Define if you want to use new multi-fd /proc interface.])
1542 # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1543 AC_DEFINE([_KMEMUSER], 1,
1544 [Define to 1 so <sys/proc.h> gets a definition of anon_hdl. Works
1545 around a <sys/proc.h> problem on IRIX 5.])
1550 if test "$ac_cv_header_sys_procfs_h" = yes; then
1551 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1552 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1553 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1554 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1555 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1556 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1557 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1558 BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1559 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1560 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1561 BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1564 dnl Check for broken prfpregset_t type
1566 dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1567 dnl prfpregset_t type (it's a typedef for the pointer to a struct
1568 dnl instead of the struct itself). We detect this here, and work
1569 dnl around it in gdb_proc_service.h.
1571 if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1572 AC_MSG_CHECKING(whether prfpregset_t type is broken)
1573 AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1574 [AC_TRY_RUN([#include <sys/procfs.h>
1577 if (sizeof (prfpregset_t) == sizeof (void *))
1581 gdb_cv_prfpregset_t_broken=no,
1582 gdb_cv_prfpregset_t_broken=yes,
1583 gdb_cv_prfpregset_t_broken=yes)])
1584 AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1585 if test $gdb_cv_prfpregset_t_broken = yes; then
1586 AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1587 [Define if the prfpregset_t type is broken.])
1592 # Check if the compiler supports the `long long' type.
1594 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1595 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1596 [[extern long long foo;]],
1597 [[switch (foo & 2) { case 0: return 1; }]])],
1598 gdb_cv_c_long_long=yes,
1599 gdb_cv_c_long_long=no)])
1600 if test $gdb_cv_c_long_long != yes; then
1601 # libdecnumber requires long long.
1602 AC_MSG_ERROR([Compiler must support long long for GDB.])
1605 # Check if the compiler and runtime support printing long longs.
1607 AC_CACHE_CHECK([for long long support in printf],
1608 gdb_cv_printf_has_long_long,
1609 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1612 l = (l << 16) + 0x0123;
1613 l = (l << 16) + 0x4567;
1614 l = (l << 16) + 0x89ab;
1615 l = (l << 16) + 0xcdef;
1616 sprintf (buf, "0x%016llx", l);
1617 return (strcmp ("0x0123456789abcdef", buf));]])],
1618 gdb_cv_printf_has_long_long=yes,
1619 gdb_cv_printf_has_long_long=no,
1620 gdb_cv_printf_has_long_long=no)])
1621 if test $gdb_cv_printf_has_long_long = yes; then
1622 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1623 [Define to 1 if the "%ll" format works to print long longs.])
1626 # Check if the compiler and runtime support printing decfloats.
1628 AC_CACHE_CHECK([for decfloat support in printf],
1629 gdb_cv_printf_has_decfloat,
1630 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1632 _Decimal32 d32 = 1.2345df;
1633 _Decimal64 d64 = 1.2345dd;
1634 _Decimal128 d128 = 1.2345dl;
1635 sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1636 return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1637 gdb_cv_printf_has_decfloat=yes,
1638 gdb_cv_printf_has_decfloat=no,
1639 gdb_cv_printf_has_decfloat=no)])
1640 if test $gdb_cv_printf_has_decfloat = yes; then
1641 AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1642 [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1645 # Check if the compiler supports the `long double' type. We can't use
1646 # AC_C_LONG_DOUBLE because that one does additional checks on the
1647 # constants defined in <float.h> that fail on some systems,
1648 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1650 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1651 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1652 gdb_cv_c_long_double=yes,
1653 gdb_cv_c_long_double=no)])
1654 if test $gdb_cv_c_long_double = yes; then
1655 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1656 [Define to 1 if the compiler supports long double.])
1659 # Check if the compiler and runtime support printing long doubles.
1661 AC_CACHE_CHECK([for long double support in printf],
1662 gdb_cv_printf_has_long_double,
1663 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1665 long double f = 3.141592653;
1666 sprintf (buf, "%Lg", f);
1667 return (strncmp ("3.14159", buf, 7));]])],
1668 gdb_cv_printf_has_long_double=yes,
1669 gdb_cv_printf_has_long_double=no,
1670 gdb_cv_printf_has_long_double=no)])
1671 if test $gdb_cv_printf_has_long_double = yes; then
1672 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1673 [Define to 1 if the "%Lg" format works to print long doubles.])
1676 # Check if the compiler and runtime support scanning long doubles.
1678 AC_CACHE_CHECK([for long double support in scanf],
1679 gdb_cv_scanf_has_long_double,
1680 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1681 [[#include <stdio.h>]],
1682 [[char *buf = "3.141592653";
1684 sscanf (buf, "%Lg", &f);
1685 return !(f > 3.14159 && f < 3.14160);]])],
1686 gdb_cv_scanf_has_long_double=yes,
1687 gdb_cv_scanf_has_long_double=no,
1688 gdb_cv_scanf_has_long_double=no)])
1689 if test $gdb_cv_scanf_has_long_double = yes; then
1690 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1691 [Define to 1 if the "%Lg" format works to scan long doubles.])
1696 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1697 SAVE_LDFLAGS=$LDFLAGS
1700 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1701 *) gdb_cv_bigtoc=-bbigtoc ;;
1704 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1705 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1706 LDFLAGS="${SAVE_LDFLAGS}"
1708 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1712 AC_MSG_CHECKING(for the dynamic export flag)
1714 if test "${gdb_native}" = yes; then
1715 # The dynamically loaded libthread_db needs access to symbols in the gdb
1716 # executable. Older GNU ld supports --export-dynamic but --dynamic-list
1717 # may not be supported there.
1718 old_LDFLAGS="$LDFLAGS"
1719 # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1720 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1721 LDFLAGS="$LDFLAGS $RDYNAMIC"
1722 if test "${have_libpython}" = no; then
1723 AC_TRY_LINK([], [], [dynamic_list=true])
1725 # Workaround http://bugs.python.org/issue4434 where static
1726 # libpythonX.Y.a would get its symbols required for
1727 # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1728 # Problem does not happen for the recommended libpythonX.Y.so linkage.
1730 # Note the workaround for Python
1731 # http://bugs.python.org/issue10112 earlier has removed
1732 # -export-dynamic from PYTHON_LIBS. That's exactly what we want
1733 # here too, as otherwise it'd make this -Wl,--dynamic-list test
1735 old_CFLAGS="$CFLAGS"
1736 CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1738 LIBS="$LIBS $PYTHON_LIBS"
1739 old_CPPFLAGS="$CPPFLAGS"
1740 CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
1743 [#include "Python.h"],
1746 err = PyRun_SimpleString ("import itertools\n");
1748 return err == 0 ? 0 : 1;]),
1749 [dynamic_list=true], [], [true])
1751 CFLAGS="$old_CFLAGS"
1752 CPPFLAGS="$old_CPPFLAGS"
1754 LDFLAGS="$old_LDFLAGS"
1756 if $dynamic_list; then
1757 found="-Wl,--dynamic-list"
1758 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1761 RDYNAMIC="-rdynamic"
1764 AC_MSG_RESULT($found)
1766 dnl For certain native configurations, we need to check whether thread
1767 dnl support can be built in or not.
1769 dnl Note that we only want this if we are both native (host == target),
1770 dnl and not doing a canadian cross build (build == host).
1772 if test ${build} = ${host} -a ${host} = ${target} ; then
1775 # See if thread_db library is around for Solaris thread debugging.
1776 # Note that we must explicitly test for version 1 of the library
1777 # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1779 AC_MSG_CHECKING(for Solaris thread debugging library)
1780 if test -f /usr/lib/libthread_db.so.1 ; then
1782 AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1783 [Define if using Solaris thread debugging.])
1784 CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1785 CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1786 AC_CHECK_LIB(dl, dlopen)
1787 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1788 # Sun randomly tweaked the prototypes in <proc_service.h>
1790 AC_MSG_CHECKING(if <proc_service.h> is old)
1791 AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1793 #include <proc_service.h>
1795 (struct ps_prochandle*, psaddr_t, const void*, size_t);
1796 ],, gdb_cv_proc_service_is_old=no,
1797 gdb_cv_proc_service_is_old=yes)
1799 AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1800 if test $gdb_cv_proc_service_is_old = yes; then
1801 AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1802 [Define if <proc_service.h> on solaris uses int instead of
1803 size_t, and assorted other type changes.])
1810 AC_MSG_CHECKING(for AiX thread debugging library)
1811 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1812 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1813 [#ifndef PTHDB_VERSION_3
1816 gdb_cv_have_aix_thread_debug=yes,
1817 gdb_cv_have_aix_thread_debug=no)])
1818 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1819 if test $gdb_cv_have_aix_thread_debug = yes; then
1820 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1821 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1822 LIBS="$LIBS -lpthdebug"
1824 # Older versions of AIX do not provide the declaration for
1825 # the getthrds function (it appears that it was introduced
1827 AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1831 AC_SUBST(CONFIG_LDFLAGS)
1834 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1835 dnl other error codes.
1836 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1837 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1838 gdb_cv_thread_db_h_has_td_notalloc,
1840 [#include <thread_db.h>],
1841 [int i = TD_NOTALLOC;],
1842 gdb_cv_thread_db_h_has_td_notalloc=yes,
1843 gdb_cv_thread_db_h_has_td_notalloc=no
1846 AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1847 gdb_cv_thread_db_h_has_td_version,
1849 [#include <thread_db.h>],
1850 [int i = TD_VERSION;],
1851 gdb_cv_thread_db_h_has_td_version=yes,
1852 gdb_cv_thread_db_h_has_td_version=no
1855 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1856 gdb_cv_thread_db_h_has_td_notls,
1858 [#include <thread_db.h>],
1859 [int i = TD_NOTLS;],
1860 gdb_cv_thread_db_h_has_td_notls=yes,
1861 gdb_cv_thread_db_h_has_td_notls=no
1865 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1866 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1867 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1869 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1870 AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1871 [Define if <thread_db.h> has the TD_VERSION error code.])
1873 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1874 AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1875 [Define if <thread_db.h> has the TD_NOTLS error code.])
1878 dnl Check if we can disable the virtual address space randomization.
1879 dnl The functionality of setarch -R.
1880 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1881 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1882 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
1883 # define ADDR_NO_RANDOMIZE 0x0040000
1885 /* Test the flag could be set and stays set. */
1886 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1887 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1889 AC_RUN_IFELSE([PERSONALITY_TEST],
1890 [have_personality=true],
1891 [have_personality=false],
1892 [AC_LINK_IFELSE([PERSONALITY_TEST],
1893 [have_personality=true],
1894 [have_personality=false])])
1895 if $have_personality
1897 AC_DEFINE([HAVE_PERSONALITY], 1,
1898 [Define if you support the personality syscall.])
1901 dnl Set the host's .gdbinit filename.
1910 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1912 dnl Handle optional features that can be enabled.
1914 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1915 # except that the argument to --with-sysroot is optional.
1916 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1917 if test "x$with_sysroot" = xyes; then
1918 with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1920 AC_ARG_WITH(sysroot,
1921 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1922 [search for usr/lib et al within DIR]),
1923 [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1924 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1925 [search for usr/lib et al within DIR])
1926 AC_SUBST(TARGET_SYSTEM_ROOT)
1927 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1929 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1930 [automatically load a system-wide gdbinit file],
1935 # In the Cygwin environment, we need some additional flags.
1936 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1937 [AC_EGREP_CPP(^lose$, [
1938 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1940 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1943 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1944 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1946 *go32* ) SER_HARDWIRE=ser-go32.o ;;
1947 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1948 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1950 AC_SUBST(SER_HARDWIRE)
1952 # libreadline needs libuser32.a in a cygwin environment
1954 if test x$gdb_cv_os_cygwin = xyes; then
1955 WIN32LIBS="-luser32"
1957 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1962 # The ser-tcp.c module requires sockets.
1965 AC_DEFINE(USE_WIN32API, 1,
1966 [Define if we should use the Windows API, instead of the
1967 POSIX API. On Windows, we use the Windows API when
1968 building for MinGW, but the POSIX API when building
1970 WIN32LIBS="$WIN32LIBS -lws2_32"
1975 # Add ELF support to GDB, but only if BFD includes ELF support.
1976 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1977 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1978 if test $gdb_cv_var_elf = yes; then
1979 CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
1980 AC_DEFINE(HAVE_ELF, 1,
1981 [Define if ELF support should be included.])
1982 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1983 if test "$plugins" = "yes"; then
1984 AC_SEARCH_LIBS(dlopen, dl)
1988 # Add macho support to GDB, but only if BFD includes it.
1989 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1990 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1991 if test $gdb_cv_var_macho = yes; then
1992 CONFIG_OBS="$CONFIG_OBS machoread.o"
1995 # Add any host-specific objects to GDB.
1996 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1998 # If building on ELF, look for lzma support for embedded compressed debug info.
1999 if test $gdb_cv_var_elf = yes; then
2001 AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
2002 [], [with_lzma=auto])
2003 AC_MSG_CHECKING([whether to use lzma])
2004 AC_MSG_RESULT([$with_lzma])
2006 if test "${with_lzma}" != no; then
2007 AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
2008 [lzma_index_iter iter;
2009 lzma_index_iter_init (&iter, 0);
2010 lzma_mf_is_supported (LZMA_MF_HC3);])
2011 if test "$HAVE_LIBLZMA" != yes; then
2012 if test "$with_lzma" = yes; then
2013 AC_MSG_ERROR([missing liblzma for --with-lzma])
2019 LIBGUI="../libgui/src/libgui.a"
2020 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
2022 AC_SUBST(GUI_CFLAGS_X)
2026 AC_SUBST(WIN32LDAPP)
2029 *-*-cygwin* | *-*-mingw* )
2038 if test "${enable_gdbtk}" = "yes"; then
2040 # Gdbtk must have an absolute path to srcdir in order to run
2041 # properly when not installed.
2049 # If $no_tk is nonempty, then we can't do Tk, and there is no
2050 # point to doing Tcl.
2053 if test -z "${no_tcl}" -a -z "${no_tk}"; then
2056 # Check for in-tree tcl
2063 if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2067 # Find Tcl private headers
2068 if test x"${intree}" = xno; then
2069 CY_AC_TCL_PRIVATE_HEADERS
2070 TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2071 TCL_LIBRARY="${TCL_LIB_SPEC}"
2074 # If building tcl in the same src tree, private headers
2075 # are not needed, but we need to be sure to use the right
2077 TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2078 TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2079 TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2081 AC_SUBST(TCL_INCLUDE)
2082 AC_SUBST(TCL_LIBRARY)
2087 # Check for in-tree Tk
2089 if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2093 # Find Tk private headers
2094 if test x"${intree}" = xno; then
2095 CY_AC_TK_PRIVATE_HEADERS
2096 TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2097 TK_LIBRARY=${TK_LIB_SPEC}
2100 TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2101 TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2102 TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2104 AC_SUBST(TK_INCLUDE)
2105 AC_SUBST(TK_LIBRARY)
2107 AC_SUBST(TK_XINCLUDES)
2109 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2111 # Include some libraries that Tcl and Tk want.
2112 TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2113 # Yes, the ordering seems wrong here. But it isn't.
2114 # TK_LIBS is the list of libraries that need to be linked
2115 # after Tcl/Tk. Note that this isn't put into LIBS. If it
2116 # were in LIBS then any link tests after this point would
2117 # try to include things like `$(LIBGUI)', which wouldn't work.
2118 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2120 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2121 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2122 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2123 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2124 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2125 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2126 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2128 if test x$gdb_cv_os_cygwin = xyes; then
2129 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2130 WIN32LDAPP="-Wl,--subsystem,console"
2131 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2134 AC_CONFIG_SUBDIRS(gdbtk)
2142 AC_SUBST(GDBTK_CFLAGS)
2143 AC_SUBST(GDBTK_SRC_DIR)
2147 # Unlike the sim directory, whether a simulator is linked is controlled by
2148 # presence of a gdb_sim definition in the target configure.tgt entry.
2149 # This code just checks for a few cases where we'd like to ignore those
2150 # definitions, even when they're present in the '.mt' file. These cases
2151 # are when --disable-sim is specified, or if the simulator directory is
2152 # not part of the source tree.
2155 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2156 [echo "enable_sim = $enable_sim";
2157 echo "enableval = ${enableval}";
2158 case "${enableval}" in
2159 yes) ignore_sim=false ;;
2160 no) ignore_sim=true ;;
2161 *) ignore_sim=false ;;
2165 if test ! -d "${srcdir}/../sim"; then
2171 if test "${ignore_sim}" = "false"; then
2172 if test x"${gdb_sim}" != x ; then
2174 SIM_OBS="remote-sim.o"
2175 AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2177 # Some tdep code should only be compiled in when the ppc sim is
2178 # built. PR sim/13418.
2181 AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
2189 AC_SUBST(ENABLE_CFLAGS)
2190 AC_SUBST(PROFILE_CFLAGS)
2192 AC_SUBST(CONFIG_OBS)
2193 AC_SUBST(CONFIG_DEPS)
2194 AC_SUBST(CONFIG_SRCS)
2195 AC_SUBST(CONFIG_ALL)
2196 AC_SUBST(CONFIG_CLEAN)
2197 AC_SUBST(CONFIG_INSTALL)
2198 AC_SUBST(CONFIG_UNINSTALL)
2200 # List of host floatformats.
2201 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2202 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2203 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2205 # target_subdir is used by the testsuite to find the target libraries.
2207 if test "${host}" != "${target}"; then
2208 target_subdir="${target_alias}/"
2210 AC_SUBST(target_subdir)
2213 if test "${gdb_native}" = "yes"; then
2214 host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2215 if test ! -f ${host_makefile_frag}; then
2216 AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2218 frags="$frags $host_makefile_frag"
2220 host_makefile_frag=/dev/null
2223 AC_SUBST_FILE(host_makefile_frag)
2227 if test "${gdb_native}" = "yes"; then
2228 # We pick this up from the host configuration file (.mh) because we
2229 # do not have a native configuration Makefile fragment.
2230 nativefile=`sed -n '
2231 s/NAT_FILE[ ]*=[ ]*\([^ ]*\)/\1/p
2232 ' ${host_makefile_frag}`
2236 if test x"${gdb_osabi}" != x ; then
2237 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2238 [Define to the default OS ABI for this configuration.])
2241 # Enable multi-ice-gdb-server.
2242 AC_ARG_ENABLE(multi-ice,
2243 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2247 *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2249 if test "x$enable_multi_ice" = xyes; then
2250 AC_CONFIG_SUBDIRS(multi-ice)
2253 AC_ARG_ENABLE(gdbserver,
2254 AS_HELP_STRING([--enable-gdbserver],
2255 [automatically build gdbserver (yes/no/auto, default is auto)]),
2256 [case "${enableval}" in
2258 *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2259 esac],[enable_gdbserver=auto])
2261 # We only build gdbserver automatically in a native configuration, and
2262 # only if the user did not explicitly disable its build.
2263 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2264 AC_MSG_CHECKING(whether gdbserver is supported on this host)
2265 if test "x$build_gdbserver" = xyes; then
2267 AC_CONFIG_SUBDIRS(gdbserver)
2268 gdbserver_build_enabled=yes
2274 # If the user explicitly request the gdbserver to be built, verify that
2275 # we were in fact able to enable it.
2276 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2277 AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2280 # Check for babeltrace and babeltrace-ctf
2281 AC_ARG_WITH(babeltrace,
2282 AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2283 [], [with_babeltrace=auto])
2284 AC_MSG_CHECKING([whether to use babeltrace])
2285 AC_MSG_RESULT([$with_babeltrace])
2287 if test "x$with_babeltrace" = "xno"; then
2288 AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2290 # Append -Werror to CFLAGS so that configure can catch the warning
2291 # "assignment from incompatible pointer type", which is related to
2292 # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
2293 # in GDB, while babeltrace 1.0.3 is broken.
2294 # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2295 # safe to save and restore CFLAGS here.
2296 saved_CFLAGS=$CFLAGS
2297 CFLAGS="$CFLAGS -Werror"
2298 AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2299 [#include <babeltrace/babeltrace.h>
2300 #include <babeltrace/ctf/events.h>
2301 #include <babeltrace/ctf/iterator.h>],
2302 [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2303 struct bt_ctf_event *event = NULL;
2304 const struct bt_definition *scope;
2306 pos.type = BT_SEEK_BEGIN;
2307 bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2308 scope = bt_ctf_get_top_level_scope (event,
2309 BT_STREAM_EVENT_HEADER);
2310 bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2312 CFLAGS=$saved_CFLAGS
2314 if test "$HAVE_LIBBABELTRACE" != yes; then
2315 if test "$with_babeltrace" = yes; then
2316 AC_MSG_ERROR([babeltrace is missing or unusable])
2318 AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2323 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2324 # to an empty version.
2330 if test "${nativefile}" != ""; then
2331 case "${nativefile}" in
2332 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2333 * ) GDB_NM_FILE="${nativefile}"
2335 files="${files} ${GDB_NM_FILE}"
2336 links="${links} nm.h"
2337 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2339 AC_SUBST(GDB_NM_FILE)
2341 AC_LINK_FILES($files, $links)
2343 dnl Check for exe extension set on certain hosts (e.g. Win32)
2346 dnl Detect the character set used by this host.
2347 dnl At the moment, we just assume it's UTF-8.
2348 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2349 [Define to be a string naming the default host character set.])
2351 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2352 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2353 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2354 AC_CONFIG_FILES([Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile],
2356 case x$CONFIG_HEADERS in
2357 xconfig.h:config.in)