1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright (C) 1995-2019 Free Software Foundation, Inc.
3 dnl Copyright (C) 2019 Advanced Micro Devices, Inc. All rights reserved.
5 dnl This file is part of GDB.
7 dnl This program is free software; you can redistribute it and/or modify
8 dnl it under the terms of the GNU General Public License as published by
9 dnl the Free Software Foundation; either version 3 of the License, or
10 dnl (at your option) any later version.
12 dnl This program is distributed in the hope that it will be useful,
13 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
14 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 dnl GNU General Public License for more details.
17 dnl You should have received a copy of the GNU General Public License
18 dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
20 dnl Process this file with autoconf to produce a configure script.
23 AC_CONFIG_HEADERS(config.h:config.in, [echo > stamp-h])
26 # Set the 'development' global.
27 . $srcdir/../bfd/development.sh
32 AC_USE_SYSTEM_EXTENSIONS
41 # We require a C++11 compiler. Check if one is available, and if
42 # necessary, set CXX_DIALECT to some -std=xxx switch.
43 AX_CXX_COMPILE_STDCXX(11, , mandatory)
45 # Dependency checking.
47 ZW_PROG_COMPILER_DEPENDENCIES([CC])
49 dnl List of object files and targets accumulated by configure.
61 dnl Set up for gettext.
62 ZW_GNU_GETTEXT_SISTER_DIR
64 localedir='${datadir}/locale'
67 if test x"$USE_NLS" = xyes; then
68 CONFIG_ALL="$CONFIG_ALL all-po"
69 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
70 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
71 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
75 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
78 # We never need to detect it in this sub-configure.
79 # But preserve it for config.status --recheck.
81 [Parent configure detects if it is of sufficient version.])
82 AC_ARG_VAR(MAKEINFOFLAGS,
83 [Parameters for MAKEINFO.])
85 MAKEINFO_EXTRA_FLAGS=""
86 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
87 [echo '@clicksequence{a @click{} b}' >conftest.texinfo
88 if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
89 gdb_cv_have_makeinfo_click=yes
91 gdb_cv_have_makeinfo_click=no
93 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
94 MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
96 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
98 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
99 [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
102 # We can't pass paths as command line arguments.
103 # Mingw32 tries to be clever and will convert the paths for us.
104 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
105 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
106 # This breaks GDB's relocatable path conversions since paths passed in
107 # config.h would not get so translated, the path prefixes no longer match.
108 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
110 # GDB's datadir relocation
112 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
113 [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
116 AC_ARG_WITH(relocated-sources,
117 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
118 [reloc_srcdir="${withval}"
119 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
120 [Relocated directory for source files. ])
123 AC_MSG_CHECKING([for default auto-load directory])
124 AC_ARG_WITH(auto-load-dir,
125 AS_HELP_STRING([--with-auto-load-dir=PATH],
126 [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
127 [with_auto_load_dir='$debugdir:$datadir/auto-load'])
128 escape_dir=`echo $with_auto_load_dir | sed -e 's/[[$]]datadir\>/\\\\\\\\\\\\&/g' -e 's/[[$]]debugdir\>/\\\\\\\\\\\\&/g'`
129 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
130 [Directories from which to load auto-loaded scripts.])
131 AC_MSG_RESULT([$with_auto_load_dir])
133 AC_MSG_CHECKING([for default auto-load safe-path])
134 AC_ARG_WITH(auto-load-safe-path,
135 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
136 [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
137 AS_HELP_STRING([--without-auto-load-safe-path],
138 [do not restrict auto-loaded files locations]),
139 [if test "$with_auto_load_safe_path" = "no"; then
140 with_auto_load_safe_path="/"
142 [with_auto_load_safe_path="$with_auto_load_dir"])
143 escape_dir=`echo $with_auto_load_safe_path | sed -e 's/[[$]]datadir\>/\\\\\\\\\\\\&/g' -e 's/[[$]]debugdir\>/\\\\\\\\\\\\&/g'`
144 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
145 [Directories safe to hold auto-loaded files.])
146 AC_MSG_RESULT([$with_auto_load_safe_path])
148 AC_CONFIG_SUBDIRS(testsuite)
150 # Check whether to support alternative target configurations
151 AC_ARG_ENABLE(targets,
152 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
153 [case "${enableval}" in
154 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
156 no) enable_targets= ;;
157 *) enable_targets=$enableval ;;
160 # Check whether to enable 64-bit support on 32-bit hosts
161 AC_ARG_ENABLE(64-bit-bfd,
162 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
163 [case "${enableval}" in
166 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
167 esac],[want64=false])dnl
169 # Provide defaults for some variables set by the per-host and per-target
171 gdb_host_obs=posix-hdep.o
173 if test "${target}" = "${host}"; then
179 . $srcdir/configure.host
181 # Accumulate some settings from configure.tgt over all enabled targets
185 HAVE_NATIVE_GCORE_TARGET=
187 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
189 if test "$targ_alias" = "all"; then
192 # Canonicalize the secondary target names.
193 result=`$ac_config_sub $targ_alias 2>/dev/null`
194 if test -n "$result"; then
200 . ${srcdir}/configure.tgt
202 AS_IF([test -z "${gdb_target_obs}"],
203 [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
205 # Target-specific object files
206 for i in ${gdb_target_obs}; do
207 case " $TARGET_OBS " in
210 TARGET_OBS="$TARGET_OBS ${i}"
215 # Check whether this target needs 64-bit CORE_ADDR
216 if test x${want64} = xfalse; then
217 . ${srcdir}/../bfd/config.bfd
220 # Check whether this target is native and supports gcore.
221 if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
222 && $gdb_have_gcore; then
223 HAVE_NATIVE_GCORE_TARGET=1
228 if test x${all_targets} = xtrue; then
230 # We want all 64-bit targets if we either:
231 # - run on a 64-bit host or
232 # - already require 64-bit support for some other target or
233 # - the --enable-64-bit-bfd option was supplied
234 # Otherwise we only support all 32-bit targets.
236 # NOTE: This test must be in sync with the corresponding
239 if test x${want64} = xfalse; then
240 AC_CHECK_SIZEOF(long)
241 if test "x${ac_cv_sizeof_long}" = "x8"; then
245 if test x${want64} = xtrue; then
246 TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
248 TARGET_OBS='$(ALL_TARGET_OBS)'
252 # ROCm dbgapi support.
254 AC_ARG_WITH(rocm-dbgapi,
255 AS_HELP_STRING([--with-rocm-dbgapi=PATH],
256 [specify prefix directory for installed ROCm-dbgapi package]),,
257 [with_rocm_dbgapi=/opt/rocm])
259 save_CPPFLAGS=${CPPFLAGS}
260 CPPFLAGS="${CPPFLAGS} -I$with_rocm_dbgapi/include"
261 AC_CHECK_HEADERS(amd-dbgapi.h)
262 CPPFLAGS=${save_CPPFLAGS}
265 save_LDFLAGS=${LDFLAGS}
266 LDFLAGS="${LDFLAGS} -L$with_rocm_dbgapi/lib"
267 AC_CHECK_LIB(rocm-dbgapi,amd_dbgapi_initialize)
268 LDFLAGS=${save_LDFLAGS}
271 if test x"$ac_cv_header_amd_dbgapi_h" = xyes \
272 -a x"$ac_cv_lib_rocm_dbgapi_amd_dbgapi_initialize" = xyes; then
274 if test x"$require_rocm_dbgapi" = xyes -o x"$all_targets" = xtrue; then
275 TARGET_OBS="$TARGET_OBS amdgcn-rocm-tdep.o rocm-tdep.o solib-rocm.o"
278 CPPFLAGS="${CPPFLAGS} -I$with_rocm_dbgapi/include"
279 ROCM_DBGAPI_LIBS="-L$with_rocm_dbgapi/lib -lrocm-dbgapi"
280 AC_SUBST(ROCM_DBGAPI_LIBS)
282 if test x"$require_rocm_dbgapi" = xyes; then
283 AC_MSG_ERROR([amdgcn*-*-* requires rocm-dbgapi to be installed, or use \
284 --with-rocm-dbgapi=PATH])
289 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
291 # For other settings, only the main target counts.
295 targ=$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. ])
315 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
320 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
323 if test x"$enable_gdbmi" = xyes; then
324 if test -d "$srcdir/mi"; then
325 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
326 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
327 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
328 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
334 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
339 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
340 esac],enable_tui=auto)
344 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
349 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
351 [if test -d "$srcdir/gdbtk"; then
356 # We unconditionally disable gdbtk tests on selected platforms.
359 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
363 # Libunwind support for ia64.
365 AC_ARG_WITH(libunwind-ia64,
366 AS_HELP_STRING([--with-libunwind-ia64],
367 [use libunwind frame unwinding for ia64 targets]),,
368 [with_libunwind_ia64=auto])
370 # Backward compatibility option.
371 if test "${with_libunwind+set}" = set; then
372 if test x"$with_libunwind_ia64" != xauto; then
374 [option --with-libunwind is deprecated, use --with-libunwind-ia64])
376 AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
377 with_libunwind_ia64="$with_libunwind"
380 case "$with_libunwind_ia64" in
384 AC_CHECK_HEADERS(libunwind-ia64.h)
385 with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
389 [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
393 if test x"$with_libunwind_ia64" = xyes; then
394 AC_CHECK_HEADERS(libunwind-ia64.h)
395 if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
396 AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
398 CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
399 CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
400 CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
404 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
407 if test "$opt_curses" = "yes"; then
412 AC_ARG_ENABLE(profiling,
413 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
418 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
420 [enable_profiling=no])
422 AC_CHECK_FUNCS(monstartup _mcleanup)
423 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
428 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
429 if test "$ac_cv_var__etext" = yes; then
430 AC_DEFINE(HAVE__ETEXT, 1,
431 [Define to 1 if your system has the _etext variable. ])
433 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
438 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
439 if test "$ac_cv_var_etext" = yes; then
440 AC_DEFINE(HAVE_ETEXT, 1,
441 [Define to 1 if your system has the etext variable. ])
443 if test "$enable_profiling" = yes ; then
444 if test "$ac_cv_func_monstartup" = no || test "$ac_cv_func__mcleanup" = no; then
445 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
449 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
451 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
452 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
453 ac_cv_cc_supports_pg=no)])
455 if test "$ac_cv_cc_supports_pg" = no; then
456 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
463 AC_ARG_ENABLE([codesign],
464 AS_HELP_STRING([--enable-codesign=CERT],
465 [sign gdb with 'codesign -s CERT']),
466 [CODESIGN_CERT=$enableval])
467 AC_SUBST([CODESIGN_CERT])
469 ACX_PKGVERSION([GDB])
470 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
471 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
472 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
474 # --------------------- #
475 # Checks for programs. #
476 # --------------------- #
484 AC_CHECK_TOOL(AR, ar)
485 AC_CHECK_TOOL(DLLTOOL, dlltool)
486 AC_CHECK_TOOL(WINDRES, windres)
490 # Needed for GNU Hurd hosts.
491 AC_CHECK_TOOL(MIG, mig)
492 if test x"$MIG" = x; then
493 AC_MSG_ERROR([MIG not found but required for $host hosts])
498 # ---------------------- #
499 # Checks for libraries. #
500 # ---------------------- #
502 # We might need to link with -lm; most simulators need it.
503 AC_CHECK_LIB(m, main)
505 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
506 AC_SEARCH_LIBS(gethostbyname, nsl)
508 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
509 AC_SEARCH_LIBS(socketpair, socket)
511 # Link in zlib if we can. This allows us to read compressed debug sections.
514 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
515 # On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
516 AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
517 [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
518 [Define to 1 if your system has the kinfo_getvmmap function. ])])
520 # fbsd-nat.c can also use kinfo_getfile.
521 AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd,
522 [AC_DEFINE(HAVE_KINFO_GETFILE, 1,
523 [Define to 1 if your system has the kinfo_getfile function. ])])
527 # GDB may fork/exec the iconv program to get the list of supported character
528 # sets. Allow the user to specify where to find it.
529 # There are several factors affecting the choice of option name:
530 # - There is already --with-libiconv-prefix but we can't use it, it specifies
531 # the build-time location of libiconv files.
532 # - The program we need to find is iconv, which comes with glibc. The user
533 # doesn't necessarily have libiconv installed. Therefore naming this
534 # --with-libiconv-foo feels wrong.
535 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
536 # defined to work on directories not files (though it really doesn't know
538 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
539 # with --with-libiconv-prefix.
540 # Putting these together is why the option name is --with-iconv-bin.
542 AC_ARG_WITH(iconv-bin,
543 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
544 [iconv_bin="${withval}"
545 AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
546 [Path of directory of iconv program.])
547 GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
550 # For the TUI, we need enhanced curses functionality.
551 if test x"$enable_tui" != xno; then
556 if test x"$prefer_curses" = xyes; then
557 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
558 # curses library because the latter might not provide all the
559 # functionality we need. However, this leads to problems on systems
560 # where the linker searches /usr/local/lib, but the compiler doesn't
561 # search /usr/local/include, if ncurses is installed in /usr/local. A
562 # default installation of ncurses on alpha*-dec-osf* will lead to such
564 AC_SEARCH_LIBS(waddstr, [ncursesw ncurses cursesX curses])
566 if test "$ac_cv_search_waddstr" != no; then
571 # Check whether we should enable the TUI, but only do so if we really
573 if test x"$enable_tui" != xno; then
574 if test -d "$srcdir/tui"; then
575 if test "$curses_found" != no; then
576 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
577 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
578 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
579 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
581 if test x"$enable_tui" = xyes; then
582 AC_MSG_ERROR([no enhanced curses library found; disable TUI])
584 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
590 # Since GDB uses Readline, we need termcap functionality. In many
591 # cases this will be provided by the curses library, but some systems
592 # have a separate termcap library, or no curses library at all.
596 if test -d "$srcdir/libtermcap"; then
597 LIBS="../libtermcap/libtermcap.a $LIBS"
598 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
601 ac_cv_search_tgetent="none required"
605 # These are the libraries checked by Readline.
606 AC_SEARCH_LIBS(tgetent, [termcap tinfow tinfo curses ncursesw ncurses])
608 if test "$ac_cv_search_tgetent" = no; then
609 CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
612 AC_ARG_WITH([system-readline],
613 [AS_HELP_STRING([--with-system-readline],
614 [use installed readline library])])
616 if test "$with_system_readline" = yes; then
617 AC_CACHE_CHECK([whether system readline is new enough],
618 [gdb_cv_readline_ok],
621 #include <readline/readline.h>],
622 [#if RL_VERSION_MAJOR < 7
623 # error "readline version 7 required"
625 gdb_cv_readline_ok=yes,
626 gdb_cv_readline_ok=no)])
627 if test "$gdb_cv_readline_ok" != yes; then
628 AC_MSG_ERROR([system readline is not new enough])
634 READLINE_TEXI_INCFLAG=
636 READLINE='$(READLINE_DIR)/libreadline.a'
637 READLINE_DEPS='$(READLINE)'
638 READLINE_CFLAGS='-I$(READLINE_SRC)/..'
639 READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
642 AC_SUBST(READLINE_DEPS)
643 AC_SUBST(READLINE_CFLAGS)
644 AC_SUBST(READLINE_TEXI_INCFLAG)
646 # Generate jit-reader.h
648 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
651 AC_CHECK_SIZEOF(unsigned long long)
652 AC_CHECK_SIZEOF(unsigned long)
653 AC_CHECK_SIZEOF(unsigned __int128)
655 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
656 TARGET_PTR="unsigned long"
657 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
658 TARGET_PTR="unsigned long long"
659 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
660 TARGET_PTR="unsigned __int128"
662 TARGET_PTR="unsigned long"
666 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
668 AC_SEARCH_LIBS(dlopen, dl)
670 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
671 [directory to load the JIT readers from],
675 AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
676 [], [with_expat=auto])
677 AC_MSG_CHECKING([whether to use expat])
678 AC_MSG_RESULT([$with_expat])
680 if test "${with_expat}" = no; then
681 AC_MSG_WARN([expat support disabled; some features may be unavailable.])
684 AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
685 [XML_Parser p = XML_ParserCreate (0);])
686 if test "$HAVE_LIBEXPAT" != yes; then
687 if test "$with_expat" = yes; then
688 AC_MSG_ERROR([expat is missing or unusable])
690 AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
694 LIBS="$LIBS $LIBEXPAT"
695 AC_CHECK_FUNCS(XML_StopParser)
701 AS_HELP_STRING([--with-mpfr], [include MPFR support (auto/yes/no)]),
702 [], [with_mpfr=auto])
703 AC_MSG_CHECKING([whether to use MPFR])
704 AC_MSG_RESULT([$with_mpfr])
706 if test "${with_mpfr}" = no; then
707 AC_MSG_WARN([MPFR support disabled; some features may be unavailable.])
710 AC_LIB_HAVE_LINKFLAGS([mpfr], [gmp], [#include <mpfr.h>],
711 [mpfr_exp_t exp; mpfr_t x;
712 mpfr_frexp (&exp, x, x, MPFR_RNDN);])
713 if test "$HAVE_LIBMPFR" != yes; then
714 if test "$with_mpfr" = yes; then
715 AC_MSG_ERROR([MPFR is missing or unusable])
717 AC_MSG_WARN([MPFR is missing or unusable; some features may be unavailable.])
722 # --------------------- #
723 # Check for libpython. #
724 # --------------------- #
726 dnl Utility to simplify finding libpython.
727 dnl $1 = the shell variable to assign the result to
728 dnl If libpython is found we store $version here.
729 dnl $2 = additional flags to add to CPPFLAGS
730 dnl $3 = additional flags to add to LIBS
732 AC_DEFUN([AC_TRY_LIBPYTHON],
734 define([have_libpython_var],$1)
737 AC_MSG_CHECKING([for python])
738 save_CPPFLAGS=$CPPFLAGS
740 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
741 LIBS="$new_LIBS $LIBS"
742 found_usable_python=no
743 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "Python.h"]],
744 [[Py_Initialize ();]])],
745 [have_libpython_var=yes
746 found_usable_python=yes
747 PYTHON_CPPFLAGS=$new_CPPFLAGS
748 PYTHON_LIBS=$new_LIBS])
749 CPPFLAGS=$save_CPPFLAGS
751 AC_MSG_RESULT([${found_usable_python}])
754 dnl There are several different values for --with-python:
756 dnl no - Don't include python support.
757 dnl yes - Include python support, error if it's missing.
758 dnl If we find python in $PATH, use it to fetch configure options,
759 dnl otherwise assume the compiler can find it with no help from us.
760 dnl Python 2.7 and 2.6 are tried in turn.
761 dnl auto - Same as "yes", but if python is missing from the system,
762 dnl fall back to "no".
763 dnl /path/to/python/exec-prefix -
764 dnl Use the python located in this directory.
765 dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
766 dnl the compilation parameters. Otherwise use
767 dnl -I/path/to/python/exec-prefix/include,
768 dnl -L/path/to/python/exec-prefix/lib.
769 dnl Python 2.7 and 2.6 are tried in turn.
770 dnl NOTE: This case is historical. It is what was done for 7.0/7.1
771 dnl but is deprecated.
772 dnl /path/to/python/executable -
773 dnl Run python-config.py with this version of python to fetch the
774 dnl compilation parameters.
775 dnl NOTE: This needn't be the real python executable.
776 dnl In a cross-compilation scenario (build != host), this could be
777 dnl a shell script that provides what python-config.py provides for
778 dnl --ldflags, --includes, --exec-prefix.
779 dnl python-executable -
780 dnl Find python-executable in $PATH, and then handle the same as
781 dnl /path/to/python/executable.
783 dnl If a python program is specified, it is used to run python-config.py and
784 dnl is passed --ldflags, --includes, --exec-prefix.
787 AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
788 [], [with_python=auto])
789 AC_MSG_CHECKING([whether to use python])
790 AC_MSG_RESULT([$with_python])
792 if test "${with_python}" = no; then
793 AC_MSG_WARN([python support disabled; some features may be unavailable.])
796 case "${with_python}" in
797 [[\\/]]* | ?:[[\\/]]*)
798 if test -d "${with_python}"; then
799 # Assume the python binary is ${with_python}/bin/python.
800 python_prog="${with_python}/bin/python"
802 # If python does not exit ${with_python}/bin, then try in
803 # ${with_python}. On Windows/MinGW, this is where the Python
805 if test ! -x "${python_prog}"; then
806 python_prog="${with_python}/python"
809 if test ! -x "${python_prog}"; then
810 # Fall back to gdb 7.0/7.1 behaviour.
812 python_prefix=${with_python}
814 elif test -x "${with_python}"; then
815 # While we can't run python compiled for $host (unless host == build),
816 # the user could write a script that provides the needed information,
817 # so we support that.
818 python_prog=${with_python}
821 AC_ERROR(invalid value for --with-python)
825 # Disallow --with-python=foo/bar.
826 AC_ERROR(invalid value for --with-python)
829 # The user has either specified auto, yes, or the name of the python
830 # program assumed to be in $PATH.
832 case "${with_python}" in
834 if test "${build}" = "${host}"; then
835 AC_PATH_PROG(python_prog_path, python, missing)
836 if test "${python_prog_path}" = missing; then
839 python_prog=${python_prog_path}
842 # Not much we can do except assume the cross-compiler will find the
848 # While we can't run python compiled for $host (unless host == build),
849 # the user could write a script that provides the needed information,
850 # so we support that.
851 python_prog="${with_python}"
852 AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
853 if test "${python_prog_path}" = missing; then
854 AC_ERROR(unable to find python program ${python_prog})
860 if test "${python_prog}" != missing; then
861 # We have a python program to use, but it may be too old.
862 # Don't flag an error for --with-python=auto (the default).
863 have_python_config=yes
864 python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
865 if test $? != 0; then
866 have_python_config=failed
867 if test "${with_python}" != auto; then
868 AC_ERROR(failure running python-config --includes)
871 python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
872 if test $? != 0; then
873 have_python_config=failed
874 if test "${with_python}" != auto; then
875 AC_ERROR(failure running python-config --ldflags)
878 python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
879 if test $? != 0; then
880 have_python_config=failed
881 if test "${with_python}" != auto; then
882 AC_ERROR(failure running python-config --exec-prefix)
886 # We do not have a python executable we can use to determine where
887 # to find the Python headers and libs. We cannot guess the include
888 # path from the python_prefix either, because that include path
889 # depends on the Python version. So, there is nothing much we can
890 # do except assume that the compiler will be able to find those files.
893 have_python_config=no
896 # If we have python-config, only try the configuration it provides.
897 # Otherwise fallback on the old way of trying different versions of
901 if test "${have_python_config}" = yes; then
902 AC_TRY_LIBPYTHON(have_libpython,
903 ${python_includes}, ${python_libs})
904 elif test "${have_python_config}" != failed; then
905 if test "${have_libpython}" = no; then
906 AC_TRY_LIBPYTHON(have_libpython,
907 ${python_includes}, "-lpython2.7 ${python_libs}")
909 if test "${have_libpython}" = no; then
910 AC_TRY_LIBPYTHON(have_libpython,
911 ${python_includes}, "-lpython2.6 ${python_libs}")
915 if test "${have_libpython}" = no; then
916 case "${with_python}" in
918 AC_MSG_ERROR([python is missing or unusable])
921 AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
924 AC_MSG_ERROR([no usable python found at ${with_python}])
928 if test -n "${python_prefix}"; then
929 AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
930 [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
931 GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
936 if test "${have_libpython}" != no; then
937 AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
938 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
939 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
940 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
941 CONFIG_INSTALL="$CONFIG_INSTALL install-python"
942 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
944 # Flags needed to compile Python code (taken from python-config --cflags).
945 # We cannot call python-config directly because it will output whatever was
946 # used when compiling the Python interpreter itself, including flags which
947 # would make the python-related objects be compiled differently from the
948 # rest of GDB (e.g., -O2 and -fPIC).
949 if test "${GCC}" = yes; then
950 tentative_python_cflags="-fno-strict-aliasing -fwrapv"
951 # Python headers recommend -DNDEBUG, but it's unclear if that just
952 # refers to building Python itself. In release mode, though, it
953 # doesn't hurt for the Python code in gdb to follow.
954 $development || tentative_python_cflags="$tentative_python_cflags -DNDEBUG"
957 if test "x${tentative_python_cflags}" != x; then
958 AC_MSG_CHECKING(compiler flags for python code)
959 for flag in ${tentative_python_cflags}; do
960 # Check that the compiler accepts it
961 saved_CFLAGS="$CFLAGS"
962 CFLAGS="$CFLAGS $flag"
963 AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
964 CFLAGS="$saved_CFLAGS"
966 AC_MSG_RESULT(${PYTHON_CFLAGS})
969 # On x64 Windows, Python's include headers, and pyconfig.h in
970 # particular, rely on MS_WIN64 macro to detect that it's a 64bit
971 # version of Windows. Unfortunately, MS_WIN64 is only defined if
972 # _MSC_VER, a Microsoft-specific macro, is defined. So, when
973 # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
974 # The issue was reported to the Python community, but still isn't
975 # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
979 if test "${GCC}" = yes; then
980 CPPFLAGS="$CPPFLAGS -DMS_WIN64"
985 # Even if Python support is not compiled in, we need to have this file
986 # included so that the "python" command, et.al., still exists.
987 CONFIG_OBS="$CONFIG_OBS python/python.o"
988 CONFIG_SRCS="$CONFIG_SRCS python/python.c"
991 # Work around Python http://bugs.python.org/issue10112. See also
992 # http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
993 # no effect. Note that the only test after this that uses Python is
994 # the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
995 # run without -export-dynamic too.
996 PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
998 AC_SUBST(PYTHON_CFLAGS)
999 AC_SUBST(PYTHON_CPPFLAGS)
1000 AC_SUBST(PYTHON_LIBS)
1001 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
1003 # -------------------- #
1004 # Check for libguile. #
1005 # -------------------- #
1007 dnl Utility to simplify finding libguile.
1008 dnl $1 = pkg-config-program
1009 dnl $2 = space-separate list of guile versions to try
1010 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1011 dnl $4 = the shell variable to assign the result to
1012 dnl If libguile is found we store "yes" here.
1014 AC_DEFUN([AC_TRY_LIBGUILE],
1017 guile_version_list=$2
1019 define([have_libguile_var],$4)
1020 found_usable_guile=checking
1021 AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1022 for guile_version in ${guile_version_list}; do
1023 ${pkg_config} --exists ${guile_version} 2>/dev/null
1024 if test $? != 0; then
1027 dnl pkg-config says the package exists, so if we get an error now,
1029 new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1030 if test $? != 0; then
1031 AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1033 new_LIBS=`${pkg_config} --libs ${guile_version}`
1034 if test $? != 0; then
1035 AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1037 dnl If we get this far, great.
1038 found_usable_guile=${guile_version}
1041 if test "${found_usable_guile}" = "checking"; then
1042 if test "${flag_errors}" = "yes"; then
1043 AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1045 found_usable_guile=no
1048 dnl One final sanity check.
1049 dnl The user could have said --with-guile=python-2.7.
1050 if test "${found_usable_guile}" != no; then
1051 save_CPPFLAGS=$CPPFLAGS
1053 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1054 LIBS="$LIBS $new_LIBS"
1055 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "libguile.h"]],
1056 [[scm_init_guile ();]])],
1057 [have_libguile_var=yes
1058 GUILE_CPPFLAGS=$new_CPPFLAGS
1059 GUILE_LIBS=$new_LIBS],
1060 [found_usable_guile=no])
1061 dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1062 AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1063 AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1064 [Define if Guile supports manual finalization.])
1066 CPPFLAGS=$save_CPPFLAGS
1068 if test "${found_usable_guile}" = no; then
1069 if test "${flag_errors}" = yes; then
1070 AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1074 AC_MSG_RESULT([${found_usable_guile}])
1077 dnl There are several different values for --with-guile:
1079 dnl no - Don't include guile support.
1080 dnl yes - Include guile support, error if it's missing.
1081 dnl The pkg-config program must be in $PATH.
1082 dnl auto - Same as "yes", but if guile is missing from the system,
1083 dnl fall back to "no".
1084 dnl guile-version [guile-version-choice-2 ...] -
1085 dnl A space-separated list of guile package versions to try.
1086 dnl These are passed to pkg-config as-is.
1087 dnl E.g., guile-2.0 or guile-2.2-uninstalled
1088 dnl This requires making sure PKG_CONFIG_PATH is set appropriately.
1089 dnl /path/to/pkg-config -
1090 dnl Use this pkg-config program.
1091 dnl NOTE: This needn't be the "real" pkg-config program.
1092 dnl It could be a shell script. It is invoked as:
1093 dnl pkg-config --exists $version
1094 dnl pkg-config --cflags $version
1095 dnl pkg-config --libs $version
1096 dnl pkg-config --variable guild $version
1097 dnl The script will be called with $version having each value in
1098 dnl $try_guile_versions until --exists indicates success.
1101 AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1102 [], [with_guile=auto])
1103 AC_MSG_CHECKING([whether to use guile])
1104 AC_MSG_RESULT([$with_guile])
1106 dnl We check guile with pkg-config.
1107 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1109 try_guile_versions="guile-2.0"
1111 case "${with_guile}" in
1113 AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1116 if test "${pkg_config_prog_path}" = "missing"; then
1117 AC_MSG_WARN([pkg-config not found, guile support disabled])
1119 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1123 if test "${pkg_config_prog_path}" = "missing"; then
1124 AC_MSG_ERROR([pkg-config not found])
1126 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1128 [[\\/]]* | ?:[[\\/]]*)
1129 if test -x "${with_guile}"; then
1130 AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1132 AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1136 # Disallow --with=guile="" and --with-guile=foo/bar.
1137 AC_MSG_ERROR([invalid value for --with-guile])
1140 # A space separate list of guile versions to try, in order.
1141 if test "${pkg_config_prog_path}" = "missing"; then
1142 AC_MSG_ERROR([pkg-config not found])
1144 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1148 if test "${have_libguile}" != no; then
1149 dnl Get the name of the 'guild' program.
1150 case "${with_guile}" in
1151 [[\\/]]* | ?:[[\\/]]*)
1152 GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1155 GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1159 dnl Make sure guild can handle this host.
1160 GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1161 dnl If not, disable guile support.
1162 if test "$ac_cv_guild_ok" = no; then
1164 AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1168 if test "${have_libguile}" != no; then
1169 AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1170 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1171 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1172 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1173 CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1174 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1176 dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1178 save_CPPFLAGS="$CPPFLAGS"
1180 CPPFLAGS="$GUILE_CPPFLAGS"
1181 AC_CHECK_FUNCS([scm_new_smob])
1183 CPPFLAGS="$save_CPPFLAGS"
1185 # Even if Guile support is not compiled in, we need to have these files
1187 CONFIG_OBS="$CONFIG_OBS guile/guile.o"
1188 CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1190 AC_SUBST(GUILE_CPPFLAGS)
1191 AC_SUBST(GUILE_LIBS)
1192 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1194 # ---------------------------- #
1195 # Check for source highlight. #
1196 # ---------------------------- #
1201 AC_ARG_ENABLE(source-highlight,
1202 AS_HELP_STRING([--enable-source-highlight],
1203 [enable source-highlight for source listings]),
1204 [case "${enableval}" in
1205 yes) enable_source_highlight=yes ;;
1206 no) enable_source_highlight=no ;;
1207 *) AC_MSG_ERROR(bad value ${enableval} for source-highlight option) ;;
1209 [enable_source_highlight=auto])
1211 if test "${enable_source_highlight}" != "no"; then
1212 AC_MSG_CHECKING([for the source-highlight library])
1213 if test "${pkg_config_prog_path}" = "missing"; then
1214 AC_MSG_RESULT([no - pkg-config not found])
1215 if test "${enable_source_highlight}" = "yes"; then
1216 AC_MSG_ERROR([pkg-config was not found in your system])
1221 AC_MSG_ERROR([source highlight is incompatible with -static-libstdc++; dnl
1222 either use --disable-source-highlight or dnl
1223 --without-static-standard-libraries])
1227 if ${pkg_config_prog_path} --exists source-highlight; then
1228 SRCHIGH_CFLAGS=`${pkg_config_prog_path} --cflags source-highlight`
1229 SRCHIGH_LIBS=`${pkg_config_prog_path} --libs source-highlight`
1230 AC_DEFINE([HAVE_SOURCE_HIGHLIGHT], 1,
1231 [Define to 1 if the source-highlight library is available])
1232 AC_MSG_RESULT([yes])
1235 if test "${enable_source_highlight}" = "yes"; then
1236 AC_MSG_ERROR([source-highlight was not found in your system])
1241 AC_SUBST(SRCHIGH_LIBS)
1242 AC_SUBST(SRCHIGH_CFLAGS)
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.])
1277 LIBS="$LIBS $LIBIPT"
1278 AC_CHECK_FUNCS(pt_insn_event)
1279 AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
1280 [#include <intel-pt.h>])
1285 # ------------------------- #
1286 # Checks for header files. #
1287 # ------------------------- #
1290 # elf_hp.h is for HP/UX 64-bit shared library support.
1291 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1292 thread_db.h linux/elf.h \
1293 sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1294 sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1295 sys/reg.h sys/debugreg.h sys/select.h \
1296 termios.h elf_hp.h])
1297 AC_CHECK_HEADERS(sys/user.h, [], [],
1298 [#if HAVE_SYS_PARAM_H
1299 # include <sys/param.h>
1303 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncursesw/ncurses.h ncurses/ncurses.h ncurses/term.h)
1304 AC_CHECK_HEADERS(term.h, [], [],
1306 # include <curses.h>
1310 # ------------------------- #
1311 # Checks for declarations. #
1312 # ------------------------- #
1316 AC_CHECK_DECLS([snprintf])
1319 # ----------------------- #
1320 # Checks for structures. #
1321 # ----------------------- #
1323 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1325 # ------------------ #
1326 # Checks for types. #
1327 # ------------------ #
1329 AC_CHECK_TYPES(socklen_t, [], [],
1330 [#include <sys/types.h>
1331 #include <sys/socket.h>
1334 # ------------------------------------- #
1335 # Checks for compiler characteristics. #
1336 # ------------------------------------- #
1342 # ------------------------------ #
1343 # Checks for library functions. #
1344 # ------------------------------ #
1348 AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
1349 pipe poll pread pread64 pwrite resize_term \
1350 sbrk getpgid setpgid setpgrp setsid \
1351 sigaction sigsetmask socketpair \
1352 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1353 setrlimit getrlimit posix_madvise waitpid \
1354 ptrace64 sigaltstack setns use_default_colors])
1358 # Check the return and argument types of ptrace.
1361 dnl AC_FUNC_SETPGRP does not work when cross compiling
1362 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1363 if test "$cross_compiling" = no; then
1366 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1370 if (setpgrp(1,1) == -1)
1374 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1375 if test "$ac_cv_func_setpgrp_void" = yes; then
1376 AC_DEFINE(SETPGRP_VOID, 1)
1380 # Assume we'll default to using the included libiberty regex.
1381 gdb_use_included_regex=yes
1383 # However, if the system regex is GNU regex, then default to *not*
1384 # using the included regex.
1387 [gdb_cv_have_gnu_regex],
1389 [#include <gnu-versions.h>],
1390 [#define REGEX_INTERFACE_VERSION 1
1391 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1392 # error "Version mismatch"
1394 gdb_cv_have_gnu_regex=yes,
1395 gdb_cv_have_gnu_regex=no)])
1396 if test "$gdb_cv_have_gnu_regex" = yes; then
1397 gdb_use_included_regex=no
1400 AC_ARG_WITH(included-regex,
1401 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)]),
1402 gdb_with_regex=$withval,
1403 gdb_with_regex=$gdb_use_included_regex)
1404 if test "$gdb_with_regex" = yes; then
1405 AC_DEFINE(USE_INCLUDED_REGEX, 1,
1406 [Define to 1 if the regex included in libiberty should be used.])
1409 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1410 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1411 [#include <sys/param.h>
1412 #include <sys/proc.h>
1415 # See if <sys/lwp.h> defines `struct lwp`.
1416 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1417 [AC_TRY_COMPILE([#include <sys/param.h>
1419 #include <sys/lwp.h>], [struct lwp l;],
1420 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1421 if test "$gdb_cv_struct_lwp" = yes; then
1422 AC_DEFINE(HAVE_STRUCT_LWP, 1,
1423 [Define to 1 if your system has struct lwp.])
1426 # See if <machine/reg.h> degines `struct reg'.
1427 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1428 [AC_TRY_COMPILE([#include <sys/types.h>
1429 #include <machine/reg.h>], [struct reg r;],
1430 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1431 if test "$gdb_cv_struct_reg" = yes; then
1432 AC_DEFINE(HAVE_STRUCT_REG, 1,
1433 [Define to 1 if your system has struct reg in <machine/reg.h>.])
1436 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1437 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1438 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1439 [#include <sys/types.h>
1440 #include <machine/reg.h>])
1442 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1443 # Older amd64 Linux's don't have the fs_base and gs_base members of
1444 # `struct user_regs_struct'.
1445 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1446 [], [], [#include <sys/types.h>
1447 #include <sys/user.h>])
1449 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1450 AC_MSG_CHECKING(for PTRACE_GETREGS)
1451 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1452 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1454 [gdb_cv_have_ptrace_getregs=yes],
1455 [gdb_cv_have_ptrace_getregs=no])])
1456 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1457 if test "$gdb_cv_have_ptrace_getregs" = yes; then
1458 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1459 [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1462 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1463 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1464 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1465 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1466 [PTRACE_GETFPXREGS;],
1467 [gdb_cv_have_ptrace_getfpxregs=yes],
1468 [gdb_cv_have_ptrace_getfpxregs=no])])
1469 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1470 if test "$gdb_cv_have_ptrace_getfpxregs" = yes; then
1471 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1472 [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1475 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1476 AC_MSG_CHECKING(for PT_GETDBREGS)
1477 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1478 [AC_TRY_COMPILE([#include <sys/types.h>
1479 #include <sys/ptrace.h>],
1481 [gdb_cv_have_pt_getdbregs=yes],
1482 [gdb_cv_have_pt_getdbregs=no])])
1483 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1484 if test "$gdb_cv_have_pt_getdbregs" = yes; then
1485 AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1486 [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1489 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1490 AC_MSG_CHECKING(for PT_GETXMMREGS)
1491 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1492 [AC_TRY_COMPILE([#include <sys/types.h>
1493 #include <sys/ptrace.h>],
1495 [gdb_cv_have_pt_getxmmregs=yes],
1496 [gdb_cv_have_pt_getxmmregs=no])])
1497 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1498 if test "$gdb_cv_have_pt_getxmmregs" = yes; then
1499 AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1500 [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1503 # See if <sys/ptrace.h> supports LWP names on FreeBSD
1504 # Older FreeBSD versions don't have the pl_tdname member of
1505 # `struct ptrace_lwpinfo'.
1506 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
1507 [#include <sys/ptrace.h>])
1509 # See if <sys/ptrace.h> supports syscall fields on FreeBSD. The
1510 # pl_syscall_code member of `struct ptrace_lwpinfo' was added in
1512 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
1513 [#include <sys/ptrace.h>])
1515 if test "$ac_cv_header_sys_procfs_h" = yes; then
1516 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1517 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1518 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1519 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1520 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1521 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1522 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1523 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
1526 # Check if the compiler supports the `long long' type.
1528 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1529 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1530 [[extern long long foo;]],
1531 [[switch (foo & 2) { case 0: return 1; }]])],
1532 gdb_cv_c_long_long=yes,
1533 gdb_cv_c_long_long=no)])
1534 if test "$gdb_cv_c_long_long" != yes; then
1535 # libdecnumber requires long long.
1536 AC_MSG_ERROR([Compiler must support long long for GDB.])
1539 # Check if the compiler and runtime support printing long longs.
1541 AC_CACHE_CHECK([for long long support in printf],
1542 gdb_cv_printf_has_long_long,
1543 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1546 l = (l << 16) + 0x0123;
1547 l = (l << 16) + 0x4567;
1548 l = (l << 16) + 0x89ab;
1549 l = (l << 16) + 0xcdef;
1550 sprintf (buf, "0x%016llx", l);
1551 return (strcmp ("0x0123456789abcdef", buf));]])],
1552 gdb_cv_printf_has_long_long=yes,
1553 gdb_cv_printf_has_long_long=no,
1554 gdb_cv_printf_has_long_long=no)])
1555 if test "$gdb_cv_printf_has_long_long" = yes; then
1556 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1557 [Define to 1 if the "%ll" format works to print long longs.])
1560 # Check if the compiler and runtime support printing decfloats.
1562 AC_CACHE_CHECK([for decfloat support in printf],
1563 gdb_cv_printf_has_decfloat,
1564 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1566 _Decimal32 d32 = 1.2345df;
1567 _Decimal64 d64 = 1.2345dd;
1568 _Decimal128 d128 = 1.2345dl;
1569 sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1570 return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1571 gdb_cv_printf_has_decfloat=yes,
1572 gdb_cv_printf_has_decfloat=no,
1573 gdb_cv_printf_has_decfloat=no)])
1574 if test "$gdb_cv_printf_has_decfloat" = yes; then
1575 AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1576 [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1579 # Check if the compiler supports the `long double' type. We can't use
1580 # AC_C_LONG_DOUBLE because that one does additional checks on the
1581 # constants defined in <float.h> that fail on some systems,
1582 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1584 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1585 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1586 gdb_cv_c_long_double=yes,
1587 gdb_cv_c_long_double=no)])
1588 if test "$gdb_cv_c_long_double" = yes; then
1589 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1590 [Define to 1 if the compiler supports long double.])
1593 # Check if the compiler and runtime support printing long doubles.
1595 AC_CACHE_CHECK([for long double support in printf],
1596 gdb_cv_printf_has_long_double,
1597 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1599 long double f = 3.141592653;
1600 sprintf (buf, "%Lg", f);
1601 return (strncmp ("3.14159", buf, 7));]])],
1602 gdb_cv_printf_has_long_double=yes,
1603 gdb_cv_printf_has_long_double=no,
1604 gdb_cv_printf_has_long_double=no)])
1605 if test "$gdb_cv_printf_has_long_double" = yes; then
1606 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1607 [Define to 1 if the "%Lg" format works to print long doubles.])
1610 # Check if the compiler and runtime support scanning long doubles.
1612 AC_CACHE_CHECK([for long double support in scanf],
1613 gdb_cv_scanf_has_long_double,
1614 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1615 [[#include <stdio.h>]],
1616 [[char *buf = "3.141592653";
1618 sscanf (buf, "%Lg", &f);
1619 return !(f > 3.14159 && f < 3.14160);]])],
1620 gdb_cv_scanf_has_long_double=yes,
1621 gdb_cv_scanf_has_long_double=no,
1622 gdb_cv_scanf_has_long_double=no)])
1623 if test "$gdb_cv_scanf_has_long_double" = yes; then
1624 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1625 [Define to 1 if the "%Lg" format works to scan long doubles.])
1630 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1631 SAVE_LDFLAGS=$LDFLAGS
1634 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1635 *) gdb_cv_bigtoc=-bbigtoc ;;
1638 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1639 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1640 LDFLAGS="${SAVE_LDFLAGS}"
1642 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1646 AC_MSG_CHECKING(for the dynamic export flag)
1648 if test "${gdb_native}" = yes; then
1649 # The dynamically loaded libthread_db needs access to symbols in the gdb
1650 # executable. Older GNU ld supports --export-dynamic but --dynamic-list
1651 # may not be supported there.
1652 old_LDFLAGS="$LDFLAGS"
1653 # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1654 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1655 LDFLAGS="$LDFLAGS $RDYNAMIC"
1656 if test "${have_libpython}" = no; then
1657 AC_TRY_LINK([], [], [dynamic_list=true])
1659 # Workaround http://bugs.python.org/issue4434 where static
1660 # libpythonX.Y.a would get its symbols required for
1661 # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1662 # Problem does not happen for the recommended libpythonX.Y.so linkage.
1664 # Note the workaround for Python
1665 # http://bugs.python.org/issue10112 earlier has removed
1666 # -export-dynamic from PYTHON_LIBS. That's exactly what we want
1667 # here too, as otherwise it'd make this -Wl,--dynamic-list test
1669 old_CFLAGS="$CFLAGS"
1670 CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1672 LIBS="$LIBS $PYTHON_LIBS"
1673 old_CPPFLAGS="$CPPFLAGS"
1674 CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
1677 [#include "Python.h"],
1680 err = PyRun_SimpleString ("import itertools\n");
1682 return err == 0 ? 0 : 1;])],
1683 [dynamic_list=true], [], [true])
1685 CFLAGS="$old_CFLAGS"
1686 CPPFLAGS="$old_CPPFLAGS"
1688 LDFLAGS="$old_LDFLAGS"
1690 if $dynamic_list; then
1691 found="-Wl,--dynamic-list"
1692 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1695 RDYNAMIC="-rdynamic"
1698 AC_MSG_RESULT($found)
1700 dnl For certain native configurations, we need to check whether thread
1701 dnl support can be built in or not.
1703 dnl Note that we only want this if we are both native (host == target),
1704 dnl and not doing a canadian cross build (build == host).
1706 if test "${build}" = "${host}" -a "${host}" = "${target}" ; then
1709 AC_MSG_CHECKING(for AiX thread debugging library)
1710 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1711 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1712 [#ifndef PTHDB_VERSION_3
1715 gdb_cv_have_aix_thread_debug=yes,
1716 gdb_cv_have_aix_thread_debug=no)])
1717 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1718 if test "$gdb_cv_have_aix_thread_debug" = yes; then
1719 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1720 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1721 LIBS="$LIBS -lpthdebug"
1723 # Older versions of AIX do not provide the declaration for
1724 # the getthrds function (it appears that it was introduced
1726 AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1730 AC_SUBST(CONFIG_LDFLAGS)
1733 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1734 dnl other error codes.
1735 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1736 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1737 gdb_cv_thread_db_h_has_td_notalloc,
1739 [#include <thread_db.h>],
1740 [int i = TD_NOTALLOC;],
1741 gdb_cv_thread_db_h_has_td_notalloc=yes,
1742 gdb_cv_thread_db_h_has_td_notalloc=no
1745 AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1746 gdb_cv_thread_db_h_has_td_version,
1748 [#include <thread_db.h>],
1749 [int i = TD_VERSION;],
1750 gdb_cv_thread_db_h_has_td_version=yes,
1751 gdb_cv_thread_db_h_has_td_version=no
1754 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1755 gdb_cv_thread_db_h_has_td_notls,
1757 [#include <thread_db.h>],
1758 [int i = TD_NOTLS;],
1759 gdb_cv_thread_db_h_has_td_notls=yes,
1760 gdb_cv_thread_db_h_has_td_notls=no
1764 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1765 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1766 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1768 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1769 AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1770 [Define if <thread_db.h> has the TD_VERSION error code.])
1772 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1773 AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1774 [Define if <thread_db.h> has the TD_NOTLS error code.])
1777 dnl Check if we can disable the virtual address space randomization.
1778 dnl The functionality of setarch -R.
1779 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1780 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1781 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
1782 # define ADDR_NO_RANDOMIZE 0x0040000
1784 /* Test the flag could be set and stays set. */
1785 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1786 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1788 AC_RUN_IFELSE([PERSONALITY_TEST],
1789 [have_personality=true],
1790 [have_personality=false],
1791 [AC_LINK_IFELSE([PERSONALITY_TEST],
1792 [have_personality=true],
1793 [have_personality=false])])
1794 if $have_personality
1796 AC_DEFINE([HAVE_PERSONALITY], 1,
1797 [Define if you support the personality syscall.])
1800 dnl Set the host's .gdbinit filename.
1809 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1811 dnl Handle optional features that can be enabled.
1813 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1814 # except that the argument to --with-sysroot is optional.
1815 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1816 if test "x$with_sysroot" = xyes; then
1817 with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1819 AC_ARG_WITH(sysroot,
1820 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1821 [search for usr/lib et al within DIR]),
1822 [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1823 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1824 [search for usr/lib et al within DIR])
1825 AC_SUBST(TARGET_SYSTEM_ROOT)
1826 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1828 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1829 [automatically load a system-wide gdbinit file],
1831 GDB_AC_WITH_DIR(SYSTEM_GDBINIT_DIR, system-gdbinit-dir,
1832 [automatically load system-wide gdbinit files from this directory],
1838 # In the Cygwin environment, we need some additional flags.
1839 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1840 [AC_EGREP_CPP(^lose$, [
1841 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1843 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1846 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1847 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1849 *go32* ) SER_HARDWIRE=ser-go32.o ;;
1850 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1851 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1852 *) SER_HARDWIRE="$SER_HARDWIRE ser-uds.o" ;;
1854 AC_SUBST(SER_HARDWIRE)
1856 # libreadline needs libuser32.a in a cygwin environment
1858 if test x"$gdb_cv_os_cygwin" = xyes; then
1859 WIN32LIBS="-luser32"
1861 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1866 # The ser-tcp.c module requires sockets.
1869 AC_DEFINE(USE_WIN32API, 1,
1870 [Define if we should use the Windows API, instead of the
1871 POSIX API. On Windows, we use the Windows API when
1872 building for MinGW, but the POSIX API when building
1874 WIN32LIBS="$WIN32LIBS -lws2_32"
1879 # Add ELF support to GDB, but only if BFD includes ELF support.
1880 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1881 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1882 if test "$gdb_cv_var_elf" = yes; then
1883 CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
1884 AC_DEFINE(HAVE_ELF, 1,
1885 [Define if ELF support should be included.])
1886 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1887 if test "$plugins" = "yes"; then
1888 AC_SEARCH_LIBS(dlopen, dl)
1892 # Add macho support to GDB, but only if BFD includes it.
1893 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1894 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1895 if test "$gdb_cv_var_macho" = yes; then
1896 CONFIG_OBS="$CONFIG_OBS machoread.o"
1899 # Add any host-specific objects to GDB.
1900 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1902 # If building on ELF, look for lzma support for embedded compressed debug info.
1903 if test "$gdb_cv_var_elf" = yes; then
1905 AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1906 [], [with_lzma=auto])
1907 AC_MSG_CHECKING([whether to use lzma])
1908 AC_MSG_RESULT([$with_lzma])
1910 if test "${with_lzma}" != no; then
1911 AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1912 [lzma_index_iter iter;
1913 lzma_index_iter_init (&iter, 0);
1914 lzma_mf_is_supported (LZMA_MF_HC3);])
1915 if test "$HAVE_LIBLZMA" != yes; then
1916 if test "$with_lzma" = yes; then
1917 AC_MSG_ERROR([missing liblzma for --with-lzma])
1923 LIBGUI="../libgui/src/libgui.a"
1924 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1926 AC_SUBST(GUI_CFLAGS_X)
1930 AC_SUBST(WIN32LDAPP)
1933 *-*-cygwin* | *-*-mingw* )
1942 if test "${enable_gdbtk}" = "yes"; then
1944 # Gdbtk must have an absolute path to srcdir in order to run
1945 # properly when not installed.
1953 # If $no_tk is nonempty, then we can't do Tk, and there is no
1954 # point to doing Tcl.
1957 if test -z "${no_tcl}" -a -z "${no_tk}"; then
1960 # Check for in-tree tcl
1967 if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
1971 # Find Tcl private headers
1972 if test x"${intree}" = xno; then
1973 CY_AC_TCL_PRIVATE_HEADERS
1974 TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
1975 TCL_LIBRARY="${TCL_LIB_SPEC}"
1978 # If building tcl in the same src tree, private headers
1979 # are not needed, but we need to be sure to use the right
1981 TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
1982 TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
1983 TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
1985 AC_SUBST(TCL_INCLUDE)
1986 AC_SUBST(TCL_LIBRARY)
1991 # Check for in-tree Tk
1993 if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
1997 # Find Tk private headers
1998 if test x"${intree}" = xno; then
1999 CY_AC_TK_PRIVATE_HEADERS
2000 TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2001 TK_LIBRARY=${TK_LIB_SPEC}
2004 TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2005 TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2006 TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2008 AC_SUBST(TK_INCLUDE)
2009 AC_SUBST(TK_LIBRARY)
2011 AC_SUBST(TK_XINCLUDES)
2013 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2015 # Include some libraries that Tcl and Tk want.
2016 TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2017 # Yes, the ordering seems wrong here. But it isn't.
2018 # TK_LIBS is the list of libraries that need to be linked
2019 # after Tcl/Tk. Note that this isn't put into LIBS. If it
2020 # were in LIBS then any link tests after this point would
2021 # try to include things like `$(LIBGUI)', which wouldn't work.
2022 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2024 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2025 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2026 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2027 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2028 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2029 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2030 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2032 if test x"$gdb_cv_os_cygwin" = xyes; then
2033 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2034 WIN32LDAPP="-Wl,--subsystem,console"
2035 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2038 AC_CONFIG_SUBDIRS(gdbtk)
2046 AC_SUBST(GDBTK_CFLAGS)
2047 AC_SUBST(GDBTK_SRC_DIR)
2051 # Unlike the sim directory, whether a simulator is linked is controlled by
2052 # presence of a gdb_sim definition in the target configure.tgt entry.
2053 # This code just checks for a few cases where we'd like to ignore those
2054 # definitions, even when they're present in the '.mt' file. These cases
2055 # are when --disable-sim is specified, or if the simulator directory is
2056 # not part of the source tree.
2059 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2060 [echo "enable_sim = $enable_sim";
2061 echo "enableval = ${enableval}";
2062 case "${enableval}" in
2063 yes) ignore_sim=false ;;
2064 no) ignore_sim=true ;;
2065 *) ignore_sim=false ;;
2069 if test ! -d "${srcdir}/../sim"; then
2075 if test "${ignore_sim}" = "false"; then
2076 if test x"${gdb_sim}" != x ; then
2078 SIM_OBS="remote-sim.o"
2079 AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2081 # Some tdep code should only be compiled in when the ppc sim is
2082 # built. PR sim/13418.
2085 AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
2093 AC_SUBST(ENABLE_CFLAGS)
2094 AC_SUBST(PROFILE_CFLAGS)
2096 AC_SUBST(CONFIG_OBS)
2097 AC_SUBST(CONFIG_DEPS)
2098 AC_SUBST(CONFIG_SRCS)
2099 AC_SUBST(CONFIG_ALL)
2100 AC_SUBST(CONFIG_CLEAN)
2101 AC_SUBST(CONFIG_INSTALL)
2102 AC_SUBST(CONFIG_UNINSTALL)
2104 # List of host floatformats.
2105 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2106 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2107 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2109 # target_subdir is used by the testsuite to find the target libraries.
2111 if test "${host}" != "${target}"; then
2112 target_subdir="${target_alias}/"
2114 AC_SUBST(target_subdir)
2116 # Import nat definitions.
2117 nat_makefile_frag=/dev/null
2118 if test "${gdb_native}" = "yes"; then
2119 . ${srcdir}/configure.nat
2120 nativefile=$NAT_FILE
2124 AC_SUBST(NATDEPFILES)
2129 AC_SUBST(NAT_GENERATED_FILES)
2130 AC_SUBST(HAVE_NATIVE_GCORE_HOST)
2131 AC_SUBST_FILE(nat_makefile_frag)
2133 if test x"${gdb_osabi}" != x ; then
2134 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2135 [Define to the default OS ABI for this configuration.])
2138 AC_ARG_ENABLE(gdbserver,
2139 AS_HELP_STRING([--enable-gdbserver],
2140 [automatically build gdbserver (yes/no/auto, default is auto)]),
2141 [case "${enableval}" in
2143 *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2144 esac],[enable_gdbserver=auto])
2146 # We only build gdbserver automatically in a native configuration, and
2147 # only if the user did not explicitly disable its build.
2148 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2149 AC_MSG_CHECKING(whether gdbserver is supported on this host)
2150 if test "x$build_gdbserver" = xyes; then
2152 AC_CONFIG_SUBDIRS(gdbserver)
2153 gdbserver_build_enabled=yes
2159 # If the user explicitly request the gdbserver to be built, verify that
2160 # we were in fact able to enable it.
2161 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2162 AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2165 # Check for babeltrace and babeltrace-ctf
2166 AC_ARG_WITH(babeltrace,
2167 AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2168 [], [with_babeltrace=auto])
2169 AC_MSG_CHECKING([whether to use babeltrace])
2170 AC_MSG_RESULT([$with_babeltrace])
2172 if test "x$with_babeltrace" = "xno"; then
2173 AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2175 # Append -Werror to CFLAGS so that configure can catch the warning
2176 # "assignment from incompatible pointer type", which is related to
2177 # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
2178 # in GDB, while babeltrace 1.0.3 is broken.
2179 # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2180 # safe to save and restore CFLAGS here.
2181 saved_CFLAGS=$CFLAGS
2182 CFLAGS="$CFLAGS -Werror"
2183 AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2184 [#include <babeltrace/babeltrace.h>
2185 #include <babeltrace/ctf/events.h>
2186 #include <babeltrace/ctf/iterator.h>],
2187 [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2188 struct bt_ctf_event *event = NULL;
2189 const struct bt_definition *scope;
2191 pos->type = BT_SEEK_BEGIN;
2192 bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2193 scope = bt_ctf_get_top_level_scope (event,
2194 BT_STREAM_EVENT_HEADER);
2195 bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2197 CFLAGS=$saved_CFLAGS
2199 if test "$HAVE_LIBBABELTRACE" != yes; then
2200 if test "$with_babeltrace" = yes; then
2201 AC_MSG_ERROR([babeltrace is missing or unusable])
2203 AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2210 AC_HELP_STRING([--with-xxhash], [use libxxhash for hashing (faster) (auto/yes/no)]),
2211 [], [with_xxhash=auto])
2213 if test "x$with_xxhash" != "xno"; then
2214 AC_LIB_HAVE_LINKFLAGS([xxhash], [],
2215 [#include <xxhash.h>],
2216 [XXH32("foo", 3, 0);
2218 if test "$HAVE_LIBXXHASH" != yes; then
2219 if test "$with_xxhash" = yes; then
2220 AC_MSG_ERROR([xxhash is missing or unusable])
2223 if test "x$with_xxhash" = "xauto"; then
2224 with_xxhash="$HAVE_LIBXXHASH"
2228 AC_MSG_CHECKING([whether to use xxhash])
2229 AC_MSG_RESULT([$with_xxhash])
2233 if test "${nativefile}" != ""; then
2234 case "${nativefile}" in
2235 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2236 * ) GDB_NM_FILE="${nativefile}"
2238 AC_CONFIG_LINKS([nm.h:$GDB_NM_FILE], [echo > stamp-nmh],
2239 [GDB_NM_FILE=$GDB_NM_FILE])
2240 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2243 AC_SUBST(GDB_NM_FILE)
2246 dnl Add dependency for xsltproc if building with maintainer-mode enabled.
2247 AC_PATH_PROGS(XSLTPROC, xsltproc, missing)
2248 if test "x$USE_MAINTAINER_MODE" = xyes; then
2249 if test "${XSLTPROC}" = missing; then
2250 AC_ERROR(unable to find xsltproc. maintainer-mode requires xsltproc.)
2255 dnl Check for exe extension set on certain hosts (e.g. Win32)
2258 dnl Detect the character set used by this host.
2259 dnl At the moment, we just assume it's UTF-8.
2260 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2261 [Define to be a string naming the default host character set.])
2264 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_UNITTESTS_OBS) gdbsupport/selftest.o selftest-arch.o"
2265 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_UNITTESTS_SRCS) gdbsupport/selftest.c selftest-arch.c"
2268 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2269 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2270 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2271 AC_CONFIG_FILES([Makefile gdb-gdb.gdb gdb-gdb.py doc/Makefile data-directory/Makefile])