1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright (C) 1995-2019 Free Software Foundation, Inc.
4 dnl This file is part of GDB.
6 dnl This program is free software; you can redistribute it and/or modify
7 dnl it under the terms of the GNU General Public License as published by
8 dnl the Free Software Foundation; either version 3 of the License, or
9 dnl (at your option) any later version.
11 dnl This program is distributed in the hope that it will be useful,
12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 dnl GNU General Public License for more details.
16 dnl You should have received a copy of the GNU General Public License
17 dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
19 dnl Process this file with autoconf to produce a configure script.
22 AC_CONFIG_HEADER(config.h:config.in)
25 # Set the 'development' global.
26 . $srcdir/../bfd/development.sh
31 AC_USE_SYSTEM_EXTENSIONS
40 # We require a C++11 compiler. Check if one is available, and if
41 # necessary, set CXX_DIALECT to some -std=xxx switch.
42 AX_CXX_COMPILE_STDCXX(11, , mandatory)
44 # Dependency checking.
46 ZW_PROG_COMPILER_DEPENDENCIES([CC])
48 dnl List of object files and targets accumulated by configure.
60 dnl Set up for gettext.
61 ZW_GNU_GETTEXT_SISTER_DIR
63 localedir='${datadir}/locale'
66 if test x"$USE_NLS" = xyes; then
67 CONFIG_ALL="$CONFIG_ALL all-po"
68 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
69 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
70 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
74 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
77 # We never need to detect it in this sub-configure.
78 # But preserve it for config.status --recheck.
80 [Parent configure detects if it is of sufficient version.])
81 AC_ARG_VAR(MAKEINFOFLAGS,
82 [Parameters for MAKEINFO.])
84 MAKEINFO_EXTRA_FLAGS=""
85 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
86 [echo '@clicksequence{a @click{} b}' >conftest.texinfo
87 if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
88 gdb_cv_have_makeinfo_click=yes
90 gdb_cv_have_makeinfo_click=no
92 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
93 MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
95 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
97 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
98 [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
101 # We can't pass paths as command line arguments.
102 # Mingw32 tries to be clever and will convert the paths for us.
103 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
104 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
105 # This breaks GDB's relocatable path conversions since paths passed in
106 # config.h would not get so translated, the path prefixes no longer match.
107 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
109 # GDB's datadir relocation
111 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
112 [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
115 AC_ARG_WITH(relocated-sources,
116 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
117 [reloc_srcdir="${withval}"
118 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
119 [Relocated directory for source files. ])
122 AC_MSG_CHECKING([for default auto-load directory])
123 AC_ARG_WITH(auto-load-dir,
124 AS_HELP_STRING([--with-auto-load-dir=PATH],
125 [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
126 [with_auto_load_dir='$debugdir:$datadir/auto-load'])
127 escape_dir=`echo $with_auto_load_dir | sed -e 's/[[$]]datadir\>/\\\\\\\\\\\\&/g' -e 's/[[$]]debugdir\>/\\\\\\\\\\\\&/g'`
128 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
129 [Directories from which to load auto-loaded scripts.])
130 AC_MSG_RESULT([$with_auto_load_dir])
132 AC_MSG_CHECKING([for default auto-load safe-path])
133 AC_ARG_WITH(auto-load-safe-path,
134 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
135 [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
136 AS_HELP_STRING([--without-auto-load-safe-path],
137 [do not restrict auto-loaded files locations]),
138 [if test "$with_auto_load_safe_path" = "no"; then
139 with_auto_load_safe_path="/"
141 [with_auto_load_safe_path="$with_auto_load_dir"])
142 escape_dir=`echo $with_auto_load_safe_path | sed -e 's/[[$]]datadir\>/\\\\\\\\\\\\&/g' -e 's/[[$]]debugdir\>/\\\\\\\\\\\\&/g'`
143 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
144 [Directories safe to hold auto-loaded files.])
145 AC_MSG_RESULT([$with_auto_load_safe_path])
147 AC_CONFIG_SUBDIRS(testsuite)
149 # Check whether to support alternative target configurations
150 AC_ARG_ENABLE(targets,
151 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
152 [case "${enableval}" in
153 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
155 no) enable_targets= ;;
156 *) enable_targets=$enableval ;;
159 # Check whether to enable 64-bit support on 32-bit hosts
160 AC_ARG_ENABLE(64-bit-bfd,
161 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
162 [case "${enableval}" in
165 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
166 esac],[want64=false])dnl
168 # Provide defaults for some variables set by the per-host and per-target
170 gdb_host_obs=posix-hdep.o
172 if test "${target}" = "${host}"; then
178 . $srcdir/configure.host
180 # Add in the common host objects.
181 . $srcdir/gdbsupport/common.host
182 gdb_host_obs="$gdb_host_obs $common_host_obs"
184 # Accumulate some settings from configure.tgt over all enabled targets
188 HAVE_NATIVE_GCORE_TARGET=
190 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
192 if test "$targ_alias" = "all"; then
195 # Canonicalize the secondary target names.
196 result=`$ac_config_sub $targ_alias 2>/dev/null`
197 if test -n "$result"; then
203 . ${srcdir}/configure.tgt
205 AS_IF([test -z "${gdb_target_obs}"],
206 [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
208 # Target-specific object files
209 for i in ${gdb_target_obs}; do
210 case " $TARGET_OBS " in
213 TARGET_OBS="$TARGET_OBS ${i}"
218 # Check whether this target needs 64-bit CORE_ADDR
219 if test x${want64} = xfalse; then
220 . ${srcdir}/../bfd/config.bfd
223 # Check whether this target is native and supports gcore.
224 if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
225 && $gdb_have_gcore; then
226 HAVE_NATIVE_GCORE_TARGET=1
231 if test x${all_targets} = xtrue; then
233 # We want all 64-bit targets if we either:
234 # - run on a 64-bit host or
235 # - already require 64-bit support for some other target or
236 # - the --enable-64-bit-bfd option was supplied
237 # Otherwise we only support all 32-bit targets.
239 # NOTE: This test must be in sync with the corresponding
242 if test x${want64} = xfalse; then
243 AC_CHECK_SIZEOF(long)
244 if test "x${ac_cv_sizeof_long}" = "x8"; then
248 if test x${want64} = xtrue; then
249 TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
251 TARGET_OBS='$(ALL_TARGET_OBS)'
256 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
258 # For other settings, only the main target counts.
262 targ=$target; . ${srcdir}/configure.tgt
264 # Fetch the default architecture and default target vector from BFD.
265 targ=$target; . $srcdir/../bfd/config.bfd
267 # We only want the first architecture, so strip off the others if
268 # there is more than one.
269 targ_archs=`echo $targ_archs | sed 's/ .*//'`
271 if test "x$targ_archs" != x; then
272 AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
273 [Define to BFD's default architecture. ])
275 if test "x$targ_defvec" != x; then
276 AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
277 [Define to BFD's default target vector. ])
282 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
287 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
290 if test x"$enable_gdbmi" = xyes; then
291 if test -d $srcdir/mi; then
292 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
293 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
294 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
295 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
301 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
306 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
307 esac],enable_tui=auto)
311 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
316 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
318 [if test -d $srcdir/gdbtk; then
323 # We unconditionally disable gdbtk tests on selected platforms.
326 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
330 # Libunwind support for ia64.
332 AC_ARG_WITH(libunwind-ia64,
333 AS_HELP_STRING([--with-libunwind-ia64],
334 [use libunwind frame unwinding for ia64 targets]),,
335 [with_libunwind_ia64=auto])
337 # Backward compatibility option.
338 if test "${with_libunwind+set}" = set; then
339 if test x"$with_libunwind_ia64" != xauto; then
341 [option --with-libunwind is deprecated, use --with-libunwind-ia64])
343 AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
344 with_libunwind_ia64="$with_libunwind"
347 case "$with_libunwind_ia64" in
351 AC_CHECK_HEADERS(libunwind-ia64.h)
352 with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
356 [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
360 if test x"$with_libunwind_ia64" = xyes; then
361 AC_CHECK_HEADERS(libunwind-ia64.h)
362 if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
363 AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
365 CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
366 CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
367 CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
371 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
374 if test "$opt_curses" = "yes"; then
379 AC_ARG_ENABLE(profiling,
380 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
385 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
387 [enable_profiling=no])
389 AC_CHECK_FUNCS(monstartup _mcleanup)
390 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
395 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
396 if test $ac_cv_var__etext = yes; then
397 AC_DEFINE(HAVE__ETEXT, 1,
398 [Define to 1 if your system has the _etext variable. ])
400 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
405 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
406 if test $ac_cv_var_etext = yes; then
407 AC_DEFINE(HAVE_ETEXT, 1,
408 [Define to 1 if your system has the etext variable. ])
410 if test "$enable_profiling" = yes ; then
411 if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
412 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
416 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
418 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
419 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
420 ac_cv_cc_supports_pg=no)])
422 if test $ac_cv_cc_supports_pg = no; then
423 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
430 AC_ARG_ENABLE([codesign],
431 AS_HELP_STRING([--enable-codesign=CERT],
432 [sign gdb with 'codesign -s CERT']),
433 [CODESIGN_CERT=$enableval])
434 AC_SUBST([CODESIGN_CERT])
436 ACX_PKGVERSION([GDB])
437 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
438 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
439 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
441 # --------------------- #
442 # Checks for programs. #
443 # --------------------- #
451 AC_CHECK_TOOL(AR, ar)
452 AC_CHECK_TOOL(DLLTOOL, dlltool)
453 AC_CHECK_TOOL(WINDRES, windres)
457 # Needed for GNU Hurd hosts.
458 AC_CHECK_TOOL(MIG, mig)
459 if test x"$MIG" = x; then
460 AC_MSG_ERROR([MIG not found but required for $host hosts])
465 # ---------------------- #
466 # Checks for libraries. #
467 # ---------------------- #
469 # We might need to link with -lm; most simulators need it.
470 AC_CHECK_LIB(m, main)
472 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
473 AC_SEARCH_LIBS(gethostbyname, nsl)
475 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
476 AC_SEARCH_LIBS(socketpair, socket)
478 # Link in zlib if we can. This allows us to read compressed debug sections.
481 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
482 # On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
483 AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
484 [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
485 [Define to 1 if your system has the kinfo_getvmmap function. ])])
487 # fbsd-nat.c can also use kinfo_getfile.
488 AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd,
489 [AC_DEFINE(HAVE_KINFO_GETFILE, 1,
490 [Define to 1 if your system has the kinfo_getfile function. ])])
494 # GDB may fork/exec the iconv program to get the list of supported character
495 # sets. Allow the user to specify where to find it.
496 # There are several factors affecting the choice of option name:
497 # - There is already --with-libiconv-prefix but we can't use it, it specifies
498 # the build-time location of libiconv files.
499 # - The program we need to find is iconv, which comes with glibc. The user
500 # doesn't necessarily have libiconv installed. Therefore naming this
501 # --with-libiconv-foo feels wrong.
502 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
503 # defined to work on directories not files (though it really doesn't know
505 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
506 # with --with-libiconv-prefix.
507 # Putting these together is why the option name is --with-iconv-bin.
509 AC_ARG_WITH(iconv-bin,
510 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
511 [iconv_bin="${withval}"
512 AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
513 [Path of directory of iconv program.])
514 GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
517 # For the TUI, we need enhanced curses functionality.
518 if test x"$enable_tui" != xno; then
523 if test x"$prefer_curses" = xyes; then
524 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
525 # curses library because the latter might not provide all the
526 # functionality we need. However, this leads to problems on systems
527 # where the linker searches /usr/local/lib, but the compiler doesn't
528 # search /usr/local/include, if ncurses is installed in /usr/local. A
529 # default installation of ncurses on alpha*-dec-osf* will lead to such
531 AC_SEARCH_LIBS(waddstr, [ncursesw ncurses cursesX curses])
533 if test "$ac_cv_search_waddstr" != no; then
538 # Check whether we should enable the TUI, but only do so if we really
540 if test x"$enable_tui" != xno; then
541 if test -d $srcdir/tui; then
542 if test "$curses_found" != no; then
543 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
544 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
545 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
546 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
548 if test x"$enable_tui" = xyes; then
549 AC_MSG_ERROR([no enhanced curses library found; disable TUI])
551 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
557 # Since GDB uses Readline, we need termcap functionality. In many
558 # cases this will be provided by the curses library, but some systems
559 # have a separate termcap library, or no curses library at all.
563 if test -d $srcdir/libtermcap; then
564 LIBS="../libtermcap/libtermcap.a $LIBS"
565 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
568 ac_cv_search_tgetent="none required"
572 # These are the libraries checked by Readline.
573 AC_SEARCH_LIBS(tgetent, [termcap tinfow tinfo curses ncursesw ncurses])
575 if test "$ac_cv_search_tgetent" = no; then
576 CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
579 AC_ARG_WITH([system-readline],
580 [AS_HELP_STRING([--with-system-readline],
581 [use installed readline library])])
583 if test "$with_system_readline" = yes; then
584 AC_CACHE_CHECK([whether system readline is new enough],
585 [gdb_cv_readline_ok],
588 #include <readline/readline.h>],
589 [#if RL_VERSION_MAJOR < 7
590 # error "readline version 7 required"
592 gdb_cv_readline_ok=yes,
593 gdb_cv_readline_ok=no)])
594 if test "$gdb_cv_readline_ok" != yes; then
595 AC_MSG_ERROR([system readline is not new enough])
601 READLINE_TEXI_INCFLAG=
603 READLINE='$(READLINE_DIR)/libreadline.a'
604 READLINE_DEPS='$(READLINE)'
605 READLINE_CFLAGS='-I$(READLINE_SRC)/..'
606 READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
609 AC_SUBST(READLINE_DEPS)
610 AC_SUBST(READLINE_CFLAGS)
611 AC_SUBST(READLINE_TEXI_INCFLAG)
613 # Generate jit-reader.h
615 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
618 AC_CHECK_SIZEOF(unsigned long long)
619 AC_CHECK_SIZEOF(unsigned long)
620 AC_CHECK_SIZEOF(unsigned __int128)
622 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
623 TARGET_PTR="unsigned long"
624 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
625 TARGET_PTR="unsigned long long"
626 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
627 TARGET_PTR="unsigned __int128"
629 TARGET_PTR="unsigned long"
633 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
635 AC_SEARCH_LIBS(dlopen, dl)
637 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
638 [directory to load the JIT readers from],
642 AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
643 [], [with_expat=auto])
644 AC_MSG_CHECKING([whether to use expat])
645 AC_MSG_RESULT([$with_expat])
647 if test "${with_expat}" = no; then
648 AC_MSG_WARN([expat support disabled; some features may be unavailable.])
651 AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
652 [XML_Parser p = XML_ParserCreate (0);])
653 if test "$HAVE_LIBEXPAT" != yes; then
654 if test "$with_expat" = yes; then
655 AC_MSG_ERROR([expat is missing or unusable])
657 AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
661 LIBS="$LIBS $LIBEXPAT"
662 AC_CHECK_FUNCS(XML_StopParser)
668 AS_HELP_STRING([--with-mpfr], [include MPFR support (auto/yes/no)]),
669 [], [with_mpfr=auto])
670 AC_MSG_CHECKING([whether to use MPFR])
671 AC_MSG_RESULT([$with_mpfr])
673 if test "${with_mpfr}" = no; then
674 AC_MSG_WARN([MPFR support disabled; some features may be unavailable.])
677 AC_LIB_HAVE_LINKFLAGS([mpfr], [gmp], [#include <mpfr.h>],
678 [mpfr_exp_t exp; mpfr_t x;
679 mpfr_frexp (&exp, x, x, MPFR_RNDN);])
680 if test "$HAVE_LIBMPFR" != yes; then
681 if test "$with_mpfr" = yes; then
682 AC_MSG_ERROR([MPFR is missing or unusable])
684 AC_MSG_WARN([MPFR is missing or unusable; some features may be unavailable.])
689 # --------------------- #
690 # Check for libpython. #
691 # --------------------- #
693 dnl Utility to simplify finding libpython.
695 dnl $2 = the shell variable to assign the result to
696 dnl If libpython is found we store $version here.
697 dnl $3 = additional flags to add to CPPFLAGS
698 dnl $4 = additional flags to add to LIBS
700 AC_DEFUN([AC_TRY_LIBPYTHON],
703 define([have_libpython_var],$2)
706 AC_MSG_CHECKING([for ${version}])
707 save_CPPFLAGS=$CPPFLAGS
709 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
710 LIBS="$new_LIBS $LIBS"
711 found_usable_python=no
712 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "Python.h"]],
713 [[Py_Initialize ();]])],
714 [have_libpython_var=${version}
715 found_usable_python=yes
716 PYTHON_CPPFLAGS=$new_CPPFLAGS
717 PYTHON_LIBS=$new_LIBS])
718 CPPFLAGS=$save_CPPFLAGS
720 AC_MSG_RESULT([${found_usable_python}])
723 dnl There are several different values for --with-python:
725 dnl no - Don't include python support.
726 dnl yes - Include python support, error if it's missing.
727 dnl If we find python in $PATH, use it to fetch configure options,
728 dnl otherwise assume the compiler can find it with no help from us.
729 dnl Python 2.7 and 2.6 are tried in turn.
730 dnl auto - Same as "yes", but if python is missing from the system,
731 dnl fall back to "no".
732 dnl /path/to/python/exec-prefix -
733 dnl Use the python located in this directory.
734 dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
735 dnl the compilation parameters. Otherwise use
736 dnl -I/path/to/python/exec-prefix/include,
737 dnl -L/path/to/python/exec-prefix/lib.
738 dnl Python 2.7 and 2.6 are tried in turn.
739 dnl NOTE: This case is historical. It is what was done for 7.0/7.1
740 dnl but is deprecated.
741 dnl /path/to/python/executable -
742 dnl Run python-config.py with this version of python to fetch the
743 dnl compilation parameters.
744 dnl NOTE: This needn't be the real python executable.
745 dnl In a cross-compilation scenario (build != host), this could be
746 dnl a shell script that provides what python-config.py provides for
747 dnl --ldflags, --includes, --exec-prefix.
748 dnl python-executable -
749 dnl Find python-executable in $PATH, and then handle the same as
750 dnl /path/to/python/executable.
752 dnl If a python program is specified, it is used to run python-config.py and
753 dnl is passed --ldflags, --includes, --exec-prefix.
756 AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
757 [], [with_python=auto])
758 AC_MSG_CHECKING([whether to use python])
759 AC_MSG_RESULT([$with_python])
761 if test "${with_python}" = no; then
762 AC_MSG_WARN([python support disabled; some features may be unavailable.])
765 case "${with_python}" in
766 [[\\/]]* | ?:[[\\/]]*)
767 if test -d ${with_python}; then
768 # Assume the python binary is ${with_python}/bin/python.
769 python_prog="${with_python}/bin/python"
771 # If python does not exit ${with_python}/bin, then try in
772 # ${with_python}. On Windows/MinGW, this is where the Python
774 if test ! -x "${python_prog}"; then
775 python_prog="${with_python}/python"
778 if test ! -x "${python_prog}"; then
779 # Fall back to gdb 7.0/7.1 behaviour.
781 python_prefix=${with_python}
783 elif test -x "${with_python}"; then
784 # While we can't run python compiled for $host (unless host == build),
785 # the user could write a script that provides the needed information,
786 # so we support that.
787 python_prog=${with_python}
790 AC_ERROR(invalid value for --with-python)
794 # Disallow --with-python=foo/bar.
795 AC_ERROR(invalid value for --with-python)
798 # The user has either specified auto, yes, or the name of the python
799 # program assumed to be in $PATH.
801 case "${with_python}" in
803 if test ${build} = ${host}; then
804 AC_PATH_PROG(python_prog_path, python, missing)
805 if test "${python_prog_path}" = missing; then
808 python_prog=${python_prog_path}
811 # Not much we can do except assume the cross-compiler will find the
817 # While we can't run python compiled for $host (unless host == build),
818 # the user could write a script that provides the needed information,
819 # so we support that.
820 python_prog="${with_python}"
821 AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
822 if test "${python_prog_path}" = missing; then
823 AC_ERROR(unable to find python program ${python_prog})
829 if test "${python_prog}" != missing; then
830 # We have a python program to use, but it may be too old.
831 # Don't flag an error for --with-python=auto (the default).
832 have_python_config=yes
833 python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
834 if test $? != 0; then
835 have_python_config=failed
836 if test "${with_python}" != auto; then
837 AC_ERROR(failure running python-config --includes)
840 python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
841 if test $? != 0; then
842 have_python_config=failed
843 if test "${with_python}" != auto; then
844 AC_ERROR(failure running python-config --ldflags)
847 python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
848 if test $? != 0; then
849 have_python_config=failed
850 if test "${with_python}" != auto; then
851 AC_ERROR(failure running python-config --exec-prefix)
855 # We do not have a python executable we can use to determine where
856 # to find the Python headers and libs. We cannot guess the include
857 # path from the python_prefix either, because that include path
858 # depends on the Python version. So, there is nothing much we can
859 # do except assume that the compiler will be able to find those files.
862 have_python_config=no
865 # If we have python-config, only try the configuration it provides.
866 # Otherwise fallback on the old way of trying different versions of
870 if test "${have_python_config}" = yes; then
871 # Determine the Python version by extracting "-lpython<version>"
872 # part of the python_libs. <version> is usually X.Y with X and Y
873 # being decimal numbers, but can also be XY (seen on Windows).
875 # The extraction is performed using sed with a regular expression.
876 # Initially, the regexp used was using the '?' quantifier to make
877 # the dot in the version number optional. Unfortunately, this
878 # does not work with non-GNU versions of sed because, because of
879 # what looks like a limitation (the '?' quantifier does not work
880 # with back-references). We work around this limitation by using
881 # the '*' quantifier instead. It means that, in theory, we might
882 # match unexpected version strings such as "-lpython2..7", but
883 # this seems unlikely in practice. And even if that happens,
884 # an error will be triggered later on, when checking that version
886 python_version=`echo " ${python_libs} " \
887 | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
888 case "${python_version}" in
890 AC_TRY_LIBPYTHON(${python_version}, have_libpython,
891 ${python_includes}, ${python_libs})
894 AC_MSG_ERROR([unable to determine python version from ${python_libs}])
897 elif test "${have_python_config}" != failed; then
898 if test "${have_libpython}" = no; then
899 AC_TRY_LIBPYTHON(python2.7, have_libpython,
900 ${python_includes}, "-lpython2.7 ${python_libs}")
902 if test "${have_libpython}" = no; then
903 AC_TRY_LIBPYTHON(python2.6, have_libpython,
904 ${python_includes}, "-lpython2.6 ${python_libs}")
907 if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
908 AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
909 elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
910 AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
913 if test "${have_libpython}" = no; then
914 case "${with_python}" in
916 AC_MSG_ERROR([python is missing or unusable])
919 AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
922 AC_MSG_ERROR([no usable python found at ${with_python}])
926 if test -n "${python_prefix}"; then
927 AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
928 [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
929 GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
934 if test "${have_libpython}" != no; then
935 AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
936 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
937 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
938 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
939 CONFIG_INSTALL="$CONFIG_INSTALL install-python"
940 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
942 # Flags needed to compile Python code (taken from python-config --cflags).
943 # We cannot call python-config directly because it will output whatever was
944 # used when compiling the Python interpreter itself, including flags which
945 # would make the python-related objects be compiled differently from the
946 # rest of GDB (e.g., -O2 and -fPIC).
947 if test "${GCC}" = yes; then
948 tentative_python_cflags="-fno-strict-aliasing -fwrapv"
949 # Python headers recommend -DNDEBUG, but it's unclear if that just
950 # refers to building Python itself. In release mode, though, it
951 # doesn't hurt for the Python code in gdb to follow.
952 $development || tentative_python_cflags="$tentative_python_cflags -DNDEBUG"
955 if test "x${tentative_python_cflags}" != x; then
956 AC_MSG_CHECKING(compiler flags for python code)
957 for flag in ${tentative_python_cflags}; do
958 # Check that the compiler accepts it
959 saved_CFLAGS="$CFLAGS"
960 CFLAGS="$CFLAGS $flag"
961 AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
962 CFLAGS="$saved_CFLAGS"
964 AC_MSG_RESULT(${PYTHON_CFLAGS})
967 # On x64 Windows, Python's include headers, and pyconfig.h in
968 # particular, rely on MS_WIN64 macro to detect that it's a 64bit
969 # version of Windows. Unfortunately, MS_WIN64 is only defined if
970 # _MSC_VER, a Microsoft-specific macro, is defined. So, when
971 # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
972 # The issue was reported to the Python community, but still isn't
973 # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
977 if test "${GCC}" = yes; then
978 CPPFLAGS="$CPPFLAGS -DMS_WIN64"
983 # Note that "python -m threading" cannot be used to check for
984 # threading support due to a bug in Python 2.7.3
985 # (http://bugs.python.org/issue15567).
986 AC_MSG_CHECKING(whether python supports threads)
987 saved_CPPFLAGS="${CPPFLAGS}"
988 CPPFLAGS="${PYTHON_CPPFLAGS}"
989 # Note that the test is reversed so that python_has_threads=yes on
990 # unexpected failures.
991 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
996 ]])], [python_has_threads=no], [python_has_threads=yes])
997 AC_MSG_RESULT(${python_has_threads})
998 CPPFLAGS="${saved_CPPFLAGS}"
1000 # Even if Python support is not compiled in, we need to have this file
1001 # included so that the "python" command, et.al., still exists.
1002 CONFIG_OBS="$CONFIG_OBS python/python.o"
1003 CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1006 # Work around Python http://bugs.python.org/issue10112. See also
1007 # http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
1008 # no effect. Note that the only test after this that uses Python is
1009 # the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
1010 # run without -export-dynamic too.
1011 PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
1013 AC_SUBST(PYTHON_CFLAGS)
1014 AC_SUBST(PYTHON_CPPFLAGS)
1015 AC_SUBST(PYTHON_LIBS)
1016 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
1018 # -------------------- #
1019 # Check for libguile. #
1020 # -------------------- #
1022 dnl Utility to simplify finding libguile.
1023 dnl $1 = pkg-config-program
1024 dnl $2 = space-separate list of guile versions to try
1025 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1026 dnl $4 = the shell variable to assign the result to
1027 dnl If libguile is found we store "yes" here.
1029 AC_DEFUN([AC_TRY_LIBGUILE],
1032 guile_version_list=$2
1034 define([have_libguile_var],$4)
1035 found_usable_guile=checking
1036 AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1037 for guile_version in ${guile_version_list}; do
1038 ${pkg_config} --exists ${guile_version} 2>/dev/null
1039 if test $? != 0; then
1042 dnl pkg-config says the package exists, so if we get an error now,
1044 new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1045 if test $? != 0; then
1046 AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1048 new_LIBS=`${pkg_config} --libs ${guile_version}`
1049 if test $? != 0; then
1050 AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1052 dnl If we get this far, great.
1053 found_usable_guile=${guile_version}
1056 if test "${found_usable_guile}" = "checking"; then
1057 if test "${flag_errors}" = "yes"; then
1058 AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1060 found_usable_guile=no
1063 dnl One final sanity check.
1064 dnl The user could have said --with-guile=python-2.7.
1065 if test "${found_usable_guile}" != no; then
1066 save_CPPFLAGS=$CPPFLAGS
1068 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1069 LIBS="$LIBS $new_LIBS"
1070 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "libguile.h"]],
1071 [[scm_init_guile ();]])],
1072 [have_libguile_var=yes
1073 GUILE_CPPFLAGS=$new_CPPFLAGS
1074 GUILE_LIBS=$new_LIBS],
1075 [found_usable_guile=no])
1076 dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1077 AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1078 AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1079 [Define if Guile supports manual finalization.])
1081 CPPFLAGS=$save_CPPFLAGS
1083 if test "${found_usable_guile}" = no; then
1084 if test "${flag_errors}" = yes; then
1085 AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1089 AC_MSG_RESULT([${found_usable_guile}])
1092 dnl There are several different values for --with-guile:
1094 dnl no - Don't include guile support.
1095 dnl yes - Include guile support, error if it's missing.
1096 dnl The pkg-config program must be in $PATH.
1097 dnl auto - Same as "yes", but if guile is missing from the system,
1098 dnl fall back to "no".
1099 dnl guile-version [guile-version-choice-2 ...] -
1100 dnl A space-separated list of guile package versions to try.
1101 dnl These are passed to pkg-config as-is.
1102 dnl E.g., guile-2.0 or guile-2.2-uninstalled
1103 dnl This requires making sure PKG_CONFIG_PATH is set appropriately.
1104 dnl /path/to/pkg-config -
1105 dnl Use this pkg-config program.
1106 dnl NOTE: This needn't be the "real" pkg-config program.
1107 dnl It could be a shell script. It is invoked as:
1108 dnl pkg-config --exists $version
1109 dnl pkg-config --cflags $version
1110 dnl pkg-config --libs $version
1111 dnl pkg-config --variable guild $version
1112 dnl The script will be called with $version having each value in
1113 dnl $try_guile_versions until --exists indicates success.
1116 AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1117 [], [with_guile=auto])
1118 AC_MSG_CHECKING([whether to use guile])
1119 AC_MSG_RESULT([$with_guile])
1121 dnl We check guile with pkg-config.
1122 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1124 try_guile_versions="guile-2.0"
1126 case "${with_guile}" in
1128 AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1131 if test "${pkg_config_prog_path}" = "missing"; then
1132 AC_MSG_WARN([pkg-config not found, guile support disabled])
1134 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1138 if test "${pkg_config_prog_path}" = "missing"; then
1139 AC_MSG_ERROR([pkg-config not found])
1141 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1143 [[\\/]]* | ?:[[\\/]]*)
1144 if test -x "${with_guile}"; then
1145 AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1147 AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1151 # Disallow --with=guile="" and --with-guile=foo/bar.
1152 AC_MSG_ERROR([invalid value for --with-guile])
1155 # A space separate list of guile versions to try, in order.
1156 if test "${pkg_config_prog_path}" = "missing"; then
1157 AC_MSG_ERROR([pkg-config not found])
1159 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1163 if test "${have_libguile}" != no; then
1164 dnl Get the name of the 'guild' program.
1165 case "${with_guile}" in
1166 [[\\/]]* | ?:[[\\/]]*)
1167 GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1170 GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1174 dnl Make sure guild can handle this host.
1175 GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1176 dnl If not, disable guile support.
1177 if test "$ac_cv_guild_ok" = no; then
1179 AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1183 if test "${have_libguile}" != no; then
1184 AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1185 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1186 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1187 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1188 CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1189 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1191 dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1193 save_CPPFLAGS="$CPPFLAGS"
1195 CPPFLAGS="$GUILE_CPPFLAGS"
1196 AC_CHECK_FUNCS([scm_new_smob])
1198 CPPFLAGS="$save_CPPFLAGS"
1200 # Even if Guile support is not compiled in, we need to have these files
1202 CONFIG_OBS="$CONFIG_OBS guile/guile.o"
1203 CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1205 AC_SUBST(GUILE_CPPFLAGS)
1206 AC_SUBST(GUILE_LIBS)
1207 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1209 # ---------------------------- #
1210 # Check for source highlight. #
1211 # ---------------------------- #
1216 AC_ARG_ENABLE(source-highlight,
1217 AS_HELP_STRING([--enable-source-highlight],
1218 [enable source-highlight for source listings]),
1219 [case "${enableval}" in
1220 yes) enable_source_highlight=yes ;;
1221 no) enable_source_highlight=no ;;
1222 *) AC_MSG_ERROR(bad value ${enableval} for source-highlight option) ;;
1224 [enable_source_highlight=auto])
1226 if test "${enable_source_highlight}" != "no"; then
1227 AC_MSG_CHECKING([for the source-highlight library])
1228 if test "${pkg_config_prog_path}" = "missing"; then
1229 AC_MSG_RESULT([no - pkg-config not found])
1230 if test "${enable_source_highlight}" = "yes"; then
1231 AC_MSG_ERROR([pkg-config was not found in your system])
1234 if ${pkg_config_prog_path} --exists source-highlight; then
1235 SRCHIGH_CFLAGS=`${pkg_config_prog_path} --cflags source-highlight`
1236 SRCHIGH_LIBS=`${pkg_config_prog_path} --libs source-highlight`
1237 AC_DEFINE([HAVE_SOURCE_HIGHLIGHT], 1,
1238 [Define to 1 if the source-highlight library is available])
1239 AC_MSG_RESULT([yes])
1242 if test "${enable_source_highlight}" = "yes"; then
1243 AC_MSG_ERROR([source-highlight was not found in your system])
1248 AC_SUBST(SRCHIGH_LIBS)
1249 AC_SUBST(SRCHIGH_CFLAGS)
1251 AC_ARG_WITH(intel_pt,
1252 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
1253 [], [with_intel_pt=auto])
1254 AC_MSG_CHECKING([whether to use intel pt])
1255 AC_MSG_RESULT([$with_intel_pt])
1257 if test "${with_intel_pt}" = no; then
1258 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
1261 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
1262 #include <linux/perf_event.h>
1263 #ifndef PERF_ATTR_SIZE_VER5
1266 ]])], [perf_event=yes], [perf_event=no])
1267 if test "$perf_event" != yes; then
1268 if test "$with_intel_pt" = yes; then
1269 AC_MSG_ERROR([linux/perf_event.h missing or too old])
1271 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
1275 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
1276 if test "$HAVE_LIBIPT" != yes; then
1277 if test "$with_intel_pt" = yes; then
1278 AC_MSG_ERROR([libipt is missing or unusable])
1280 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
1284 LIBS="$LIBS $LIBIPT"
1285 AC_CHECK_FUNCS(pt_insn_event)
1286 AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
1287 [#include <intel-pt.h>])
1292 # ------------------------- #
1293 # Checks for header files. #
1294 # ------------------------- #
1297 # elf_hp.h is for HP/UX 64-bit shared library support.
1298 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1299 thread_db.h linux/elf.h \
1300 sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1301 sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1302 sys/reg.h sys/debugreg.h sys/select.h \
1303 termios.h elf_hp.h \
1305 AC_CHECK_HEADERS(sys/user.h, [], [],
1306 [#if HAVE_SYS_PARAM_H
1307 # include <sys/param.h>
1311 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncursesw/ncurses.h ncurses/ncurses.h ncurses/term.h)
1312 AC_CHECK_HEADERS(term.h, [], [],
1314 # include <curses.h>
1318 # ------------------------- #
1319 # Checks for declarations. #
1320 # ------------------------- #
1324 AC_CHECK_DECLS([snprintf])
1327 # ----------------------- #
1328 # Checks for structures. #
1329 # ----------------------- #
1331 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1333 # ------------------ #
1334 # Checks for types. #
1335 # ------------------ #
1337 AC_CHECK_TYPES(socklen_t, [], [],
1338 [#include <sys/types.h>
1339 #include <sys/socket.h>
1342 # ------------------------------------- #
1343 # Checks for compiler characteristics. #
1344 # ------------------------------------- #
1350 # ------------------------------ #
1351 # Checks for library functions. #
1352 # ------------------------------ #
1356 AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
1357 pipe poll pread pread64 pwrite resize_term \
1358 sbrk getpgid setpgid setpgrp setsid \
1359 sigaction sigprocmask sigsetmask socketpair \
1360 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1361 setrlimit getrlimit posix_madvise waitpid \
1362 ptrace64 sigaltstack setns use_default_colors])
1366 # Check the return and argument types of ptrace.
1369 dnl AC_FUNC_SETPGRP does not work when cross compiling
1370 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1371 if test "$cross_compiling" = no; then
1374 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1378 if (setpgrp(1,1) == -1)
1382 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1383 if test $ac_cv_func_setpgrp_void = yes; then
1384 AC_DEFINE(SETPGRP_VOID, 1)
1388 # Assume we'll default to using the included libiberty regex.
1389 gdb_use_included_regex=yes
1391 # However, if the system regex is GNU regex, then default to *not*
1392 # using the included regex.
1395 [gdb_cv_have_gnu_regex],
1397 [#include <gnu-versions.h>],
1398 [#define REGEX_INTERFACE_VERSION 1
1399 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1400 # error "Version mismatch"
1402 gdb_cv_have_gnu_regex=yes,
1403 gdb_cv_have_gnu_regex=no)])
1404 if test $gdb_cv_have_gnu_regex = yes; then
1405 gdb_use_included_regex=no
1408 AC_ARG_WITH(included-regex,
1409 AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1410 gdb_with_regex=$withval,
1411 gdb_with_regex=$gdb_use_included_regex)
1412 if test "$gdb_with_regex" = yes; then
1413 AC_DEFINE(USE_INCLUDED_REGEX, 1,
1414 [Define to 1 if the regex included in libiberty should be used.])
1417 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1418 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1419 [#include <sys/param.h>
1420 #include <sys/proc.h>
1423 # See if <sys/lwp.h> defines `struct lwp`.
1424 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1425 [AC_TRY_COMPILE([#include <sys/param.h>
1427 #include <sys/lwp.h>], [struct lwp l;],
1428 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1429 if test $gdb_cv_struct_lwp = yes; then
1430 AC_DEFINE(HAVE_STRUCT_LWP, 1,
1431 [Define to 1 if your system has struct lwp.])
1434 # See if <machine/reg.h> degines `struct reg'.
1435 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1436 [AC_TRY_COMPILE([#include <sys/types.h>
1437 #include <machine/reg.h>], [struct reg r;],
1438 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1439 if test $gdb_cv_struct_reg = yes; then
1440 AC_DEFINE(HAVE_STRUCT_REG, 1,
1441 [Define to 1 if your system has struct reg in <machine/reg.h>.])
1444 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1445 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1446 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1447 [#include <sys/types.h>
1448 #include <machine/reg.h>])
1450 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1451 # Older amd64 Linux's don't have the fs_base and gs_base members of
1452 # `struct user_regs_struct'.
1453 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1454 [], [], [#include <sys/types.h>
1455 #include <sys/user.h>])
1457 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1458 AC_MSG_CHECKING(for PTRACE_GETREGS)
1459 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1460 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1462 [gdb_cv_have_ptrace_getregs=yes],
1463 [gdb_cv_have_ptrace_getregs=no])])
1464 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1465 if test $gdb_cv_have_ptrace_getregs = yes; then
1466 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1467 [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1470 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1471 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1472 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1473 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1474 [PTRACE_GETFPXREGS;],
1475 [gdb_cv_have_ptrace_getfpxregs=yes],
1476 [gdb_cv_have_ptrace_getfpxregs=no])])
1477 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1478 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1479 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1480 [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1483 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1484 AC_MSG_CHECKING(for PT_GETDBREGS)
1485 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1486 [AC_TRY_COMPILE([#include <sys/types.h>
1487 #include <sys/ptrace.h>],
1489 [gdb_cv_have_pt_getdbregs=yes],
1490 [gdb_cv_have_pt_getdbregs=no])])
1491 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1492 if test $gdb_cv_have_pt_getdbregs = yes; then
1493 AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1494 [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1497 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1498 AC_MSG_CHECKING(for PT_GETXMMREGS)
1499 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1500 [AC_TRY_COMPILE([#include <sys/types.h>
1501 #include <sys/ptrace.h>],
1503 [gdb_cv_have_pt_getxmmregs=yes],
1504 [gdb_cv_have_pt_getxmmregs=no])])
1505 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1506 if test $gdb_cv_have_pt_getxmmregs = yes; then
1507 AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1508 [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1511 # See if <sys/ptrace.h> supports LWP names on FreeBSD
1512 # Older FreeBSD versions don't have the pl_tdname member of
1513 # `struct ptrace_lwpinfo'.
1514 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
1515 [#include <sys/ptrace.h>])
1517 # See if <sys/ptrace.h> supports syscall fields on FreeBSD. The
1518 # pl_syscall_code member of `struct ptrace_lwpinfo' was added in
1520 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
1521 [#include <sys/ptrace.h>])
1523 if test "$ac_cv_header_sys_procfs_h" = yes; then
1524 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1525 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1526 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1527 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1528 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1529 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1530 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1531 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
1534 # Check if the compiler supports the `long long' type.
1536 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1537 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1538 [[extern long long foo;]],
1539 [[switch (foo & 2) { case 0: return 1; }]])],
1540 gdb_cv_c_long_long=yes,
1541 gdb_cv_c_long_long=no)])
1542 if test $gdb_cv_c_long_long != yes; then
1543 # libdecnumber requires long long.
1544 AC_MSG_ERROR([Compiler must support long long for GDB.])
1547 # Check if the compiler and runtime support printing long longs.
1549 AC_CACHE_CHECK([for long long support in printf],
1550 gdb_cv_printf_has_long_long,
1551 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1554 l = (l << 16) + 0x0123;
1555 l = (l << 16) + 0x4567;
1556 l = (l << 16) + 0x89ab;
1557 l = (l << 16) + 0xcdef;
1558 sprintf (buf, "0x%016llx", l);
1559 return (strcmp ("0x0123456789abcdef", buf));]])],
1560 gdb_cv_printf_has_long_long=yes,
1561 gdb_cv_printf_has_long_long=no,
1562 gdb_cv_printf_has_long_long=no)])
1563 if test $gdb_cv_printf_has_long_long = yes; then
1564 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1565 [Define to 1 if the "%ll" format works to print long longs.])
1568 # Check if the compiler and runtime support printing decfloats.
1570 AC_CACHE_CHECK([for decfloat support in printf],
1571 gdb_cv_printf_has_decfloat,
1572 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1574 _Decimal32 d32 = 1.2345df;
1575 _Decimal64 d64 = 1.2345dd;
1576 _Decimal128 d128 = 1.2345dl;
1577 sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1578 return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1579 gdb_cv_printf_has_decfloat=yes,
1580 gdb_cv_printf_has_decfloat=no,
1581 gdb_cv_printf_has_decfloat=no)])
1582 if test $gdb_cv_printf_has_decfloat = yes; then
1583 AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1584 [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1587 # Check if the compiler supports the `long double' type. We can't use
1588 # AC_C_LONG_DOUBLE because that one does additional checks on the
1589 # constants defined in <float.h> that fail on some systems,
1590 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1592 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1593 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1594 gdb_cv_c_long_double=yes,
1595 gdb_cv_c_long_double=no)])
1596 if test $gdb_cv_c_long_double = yes; then
1597 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1598 [Define to 1 if the compiler supports long double.])
1601 # Check if the compiler and runtime support printing long doubles.
1603 AC_CACHE_CHECK([for long double support in printf],
1604 gdb_cv_printf_has_long_double,
1605 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1607 long double f = 3.141592653;
1608 sprintf (buf, "%Lg", f);
1609 return (strncmp ("3.14159", buf, 7));]])],
1610 gdb_cv_printf_has_long_double=yes,
1611 gdb_cv_printf_has_long_double=no,
1612 gdb_cv_printf_has_long_double=no)])
1613 if test $gdb_cv_printf_has_long_double = yes; then
1614 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1615 [Define to 1 if the "%Lg" format works to print long doubles.])
1618 # Check if the compiler and runtime support scanning long doubles.
1620 AC_CACHE_CHECK([for long double support in scanf],
1621 gdb_cv_scanf_has_long_double,
1622 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1623 [[#include <stdio.h>]],
1624 [[char *buf = "3.141592653";
1626 sscanf (buf, "%Lg", &f);
1627 return !(f > 3.14159 && f < 3.14160);]])],
1628 gdb_cv_scanf_has_long_double=yes,
1629 gdb_cv_scanf_has_long_double=no,
1630 gdb_cv_scanf_has_long_double=no)])
1631 if test $gdb_cv_scanf_has_long_double = yes; then
1632 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1633 [Define to 1 if the "%Lg" format works to scan long doubles.])
1638 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1639 SAVE_LDFLAGS=$LDFLAGS
1642 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1643 *) gdb_cv_bigtoc=-bbigtoc ;;
1646 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1647 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1648 LDFLAGS="${SAVE_LDFLAGS}"
1650 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1654 AC_MSG_CHECKING(for the dynamic export flag)
1656 if test "${gdb_native}" = yes; then
1657 # The dynamically loaded libthread_db needs access to symbols in the gdb
1658 # executable. Older GNU ld supports --export-dynamic but --dynamic-list
1659 # may not be supported there.
1660 old_LDFLAGS="$LDFLAGS"
1661 # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1662 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1663 LDFLAGS="$LDFLAGS $RDYNAMIC"
1664 if test "${have_libpython}" = no; then
1665 AC_TRY_LINK([], [], [dynamic_list=true])
1667 # Workaround http://bugs.python.org/issue4434 where static
1668 # libpythonX.Y.a would get its symbols required for
1669 # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1670 # Problem does not happen for the recommended libpythonX.Y.so linkage.
1672 # Note the workaround for Python
1673 # http://bugs.python.org/issue10112 earlier has removed
1674 # -export-dynamic from PYTHON_LIBS. That's exactly what we want
1675 # here too, as otherwise it'd make this -Wl,--dynamic-list test
1677 old_CFLAGS="$CFLAGS"
1678 CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1680 LIBS="$LIBS $PYTHON_LIBS"
1681 old_CPPFLAGS="$CPPFLAGS"
1682 CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
1685 [#include "Python.h"],
1688 err = PyRun_SimpleString ("import itertools\n");
1690 return err == 0 ? 0 : 1;])],
1691 [dynamic_list=true], [], [true])
1693 CFLAGS="$old_CFLAGS"
1694 CPPFLAGS="$old_CPPFLAGS"
1696 LDFLAGS="$old_LDFLAGS"
1698 if $dynamic_list; then
1699 found="-Wl,--dynamic-list"
1700 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1703 RDYNAMIC="-rdynamic"
1706 AC_MSG_RESULT($found)
1708 dnl For certain native configurations, we need to check whether thread
1709 dnl support can be built in or not.
1711 dnl Note that we only want this if we are both native (host == target),
1712 dnl and not doing a canadian cross build (build == host).
1714 if test ${build} = ${host} -a ${host} = ${target} ; then
1717 AC_MSG_CHECKING(for AiX thread debugging library)
1718 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1719 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1720 [#ifndef PTHDB_VERSION_3
1723 gdb_cv_have_aix_thread_debug=yes,
1724 gdb_cv_have_aix_thread_debug=no)])
1725 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1726 if test $gdb_cv_have_aix_thread_debug = yes; then
1727 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1728 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1729 LIBS="$LIBS -lpthdebug"
1731 # Older versions of AIX do not provide the declaration for
1732 # the getthrds function (it appears that it was introduced
1734 AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1738 AC_SUBST(CONFIG_LDFLAGS)
1741 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1742 dnl other error codes.
1743 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1744 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1745 gdb_cv_thread_db_h_has_td_notalloc,
1747 [#include <thread_db.h>],
1748 [int i = TD_NOTALLOC;],
1749 gdb_cv_thread_db_h_has_td_notalloc=yes,
1750 gdb_cv_thread_db_h_has_td_notalloc=no
1753 AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1754 gdb_cv_thread_db_h_has_td_version,
1756 [#include <thread_db.h>],
1757 [int i = TD_VERSION;],
1758 gdb_cv_thread_db_h_has_td_version=yes,
1759 gdb_cv_thread_db_h_has_td_version=no
1762 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1763 gdb_cv_thread_db_h_has_td_notls,
1765 [#include <thread_db.h>],
1766 [int i = TD_NOTLS;],
1767 gdb_cv_thread_db_h_has_td_notls=yes,
1768 gdb_cv_thread_db_h_has_td_notls=no
1772 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1773 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1774 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1776 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1777 AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1778 [Define if <thread_db.h> has the TD_VERSION error code.])
1780 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1781 AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1782 [Define if <thread_db.h> has the TD_NOTLS error code.])
1785 dnl Check if we can disable the virtual address space randomization.
1786 dnl The functionality of setarch -R.
1787 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1788 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1789 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
1790 # define ADDR_NO_RANDOMIZE 0x0040000
1792 /* Test the flag could be set and stays set. */
1793 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1794 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1796 AC_RUN_IFELSE([PERSONALITY_TEST],
1797 [have_personality=true],
1798 [have_personality=false],
1799 [AC_LINK_IFELSE([PERSONALITY_TEST],
1800 [have_personality=true],
1801 [have_personality=false])])
1802 if $have_personality
1804 AC_DEFINE([HAVE_PERSONALITY], 1,
1805 [Define if you support the personality syscall.])
1808 dnl Set the host's .gdbinit filename.
1817 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1819 dnl Handle optional features that can be enabled.
1821 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1822 # except that the argument to --with-sysroot is optional.
1823 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1824 if test "x$with_sysroot" = xyes; then
1825 with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1827 AC_ARG_WITH(sysroot,
1828 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1829 [search for usr/lib et al within DIR]),
1830 [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1831 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1832 [search for usr/lib et al within DIR])
1833 AC_SUBST(TARGET_SYSTEM_ROOT)
1834 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1836 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1837 [automatically load a system-wide gdbinit file],
1843 # In the Cygwin environment, we need some additional flags.
1844 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1845 [AC_EGREP_CPP(^lose$, [
1846 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1848 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1851 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1852 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1854 *go32* ) SER_HARDWIRE=ser-go32.o ;;
1855 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1856 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1857 *) SER_HARDWIRE="$SER_HARDWIRE ser-uds.o" ;;
1859 AC_SUBST(SER_HARDWIRE)
1861 # libreadline needs libuser32.a in a cygwin environment
1863 if test x$gdb_cv_os_cygwin = xyes; then
1864 WIN32LIBS="-luser32"
1866 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1871 # The ser-tcp.c module requires sockets.
1874 AC_DEFINE(USE_WIN32API, 1,
1875 [Define if we should use the Windows API, instead of the
1876 POSIX API. On Windows, we use the Windows API when
1877 building for MinGW, but the POSIX API when building
1879 WIN32LIBS="$WIN32LIBS -lws2_32"
1884 # Add ELF support to GDB, but only if BFD includes ELF support.
1885 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1886 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1887 if test $gdb_cv_var_elf = yes; then
1888 CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
1889 AC_DEFINE(HAVE_ELF, 1,
1890 [Define if ELF support should be included.])
1891 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1892 if test "$plugins" = "yes"; then
1893 AC_SEARCH_LIBS(dlopen, dl)
1897 # Add macho support to GDB, but only if BFD includes it.
1898 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1899 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1900 if test $gdb_cv_var_macho = yes; then
1901 CONFIG_OBS="$CONFIG_OBS machoread.o"
1904 # Add any host-specific objects to GDB.
1905 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1907 # If building on ELF, look for lzma support for embedded compressed debug info.
1908 if test $gdb_cv_var_elf = yes; then
1910 AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1911 [], [with_lzma=auto])
1912 AC_MSG_CHECKING([whether to use lzma])
1913 AC_MSG_RESULT([$with_lzma])
1915 if test "${with_lzma}" != no; then
1916 AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1917 [lzma_index_iter iter;
1918 lzma_index_iter_init (&iter, 0);
1919 lzma_mf_is_supported (LZMA_MF_HC3);])
1920 if test "$HAVE_LIBLZMA" != yes; then
1921 if test "$with_lzma" = yes; then
1922 AC_MSG_ERROR([missing liblzma for --with-lzma])
1928 LIBGUI="../libgui/src/libgui.a"
1929 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1931 AC_SUBST(GUI_CFLAGS_X)
1935 AC_SUBST(WIN32LDAPP)
1938 *-*-cygwin* | *-*-mingw* )
1947 if test "${enable_gdbtk}" = "yes"; then
1949 # Gdbtk must have an absolute path to srcdir in order to run
1950 # properly when not installed.
1958 # If $no_tk is nonempty, then we can't do Tk, and there is no
1959 # point to doing Tcl.
1962 if test -z "${no_tcl}" -a -z "${no_tk}"; then
1965 # Check for in-tree tcl
1972 if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
1976 # Find Tcl private headers
1977 if test x"${intree}" = xno; then
1978 CY_AC_TCL_PRIVATE_HEADERS
1979 TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
1980 TCL_LIBRARY="${TCL_LIB_SPEC}"
1983 # If building tcl in the same src tree, private headers
1984 # are not needed, but we need to be sure to use the right
1986 TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
1987 TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
1988 TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
1990 AC_SUBST(TCL_INCLUDE)
1991 AC_SUBST(TCL_LIBRARY)
1996 # Check for in-tree Tk
1998 if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2002 # Find Tk private headers
2003 if test x"${intree}" = xno; then
2004 CY_AC_TK_PRIVATE_HEADERS
2005 TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2006 TK_LIBRARY=${TK_LIB_SPEC}
2009 TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2010 TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2011 TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2013 AC_SUBST(TK_INCLUDE)
2014 AC_SUBST(TK_LIBRARY)
2016 AC_SUBST(TK_XINCLUDES)
2018 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2020 # Include some libraries that Tcl and Tk want.
2021 TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2022 # Yes, the ordering seems wrong here. But it isn't.
2023 # TK_LIBS is the list of libraries that need to be linked
2024 # after Tcl/Tk. Note that this isn't put into LIBS. If it
2025 # were in LIBS then any link tests after this point would
2026 # try to include things like `$(LIBGUI)', which wouldn't work.
2027 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2029 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2030 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2031 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2032 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2033 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2034 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2035 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2037 if test x$gdb_cv_os_cygwin = xyes; then
2038 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2039 WIN32LDAPP="-Wl,--subsystem,console"
2040 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2043 AC_CONFIG_SUBDIRS(gdbtk)
2051 AC_SUBST(GDBTK_CFLAGS)
2052 AC_SUBST(GDBTK_SRC_DIR)
2056 # Unlike the sim directory, whether a simulator is linked is controlled by
2057 # presence of a gdb_sim definition in the target configure.tgt entry.
2058 # This code just checks for a few cases where we'd like to ignore those
2059 # definitions, even when they're present in the '.mt' file. These cases
2060 # are when --disable-sim is specified, or if the simulator directory is
2061 # not part of the source tree.
2064 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2065 [echo "enable_sim = $enable_sim";
2066 echo "enableval = ${enableval}";
2067 case "${enableval}" in
2068 yes) ignore_sim=false ;;
2069 no) ignore_sim=true ;;
2070 *) ignore_sim=false ;;
2074 if test ! -d "${srcdir}/../sim"; then
2080 if test "${ignore_sim}" = "false"; then
2081 if test x"${gdb_sim}" != x ; then
2083 SIM_OBS="remote-sim.o"
2084 AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2086 # Some tdep code should only be compiled in when the ppc sim is
2087 # built. PR sim/13418.
2090 AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
2098 AC_SUBST(ENABLE_CFLAGS)
2099 AC_SUBST(PROFILE_CFLAGS)
2101 AC_SUBST(CONFIG_OBS)
2102 AC_SUBST(CONFIG_DEPS)
2103 AC_SUBST(CONFIG_SRCS)
2104 AC_SUBST(CONFIG_ALL)
2105 AC_SUBST(CONFIG_CLEAN)
2106 AC_SUBST(CONFIG_INSTALL)
2107 AC_SUBST(CONFIG_UNINSTALL)
2109 # List of host floatformats.
2110 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2111 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2112 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2114 # target_subdir is used by the testsuite to find the target libraries.
2116 if test "${host}" != "${target}"; then
2117 target_subdir="${target_alias}/"
2119 AC_SUBST(target_subdir)
2121 # Import nat definitions.
2122 nat_makefile_frag=/dev/null
2123 if test "${gdb_native}" = "yes"; then
2124 . ${srcdir}/configure.nat
2125 nativefile=$NAT_FILE
2129 AC_SUBST(NATDEPFILES)
2134 AC_SUBST(NAT_GENERATED_FILES)
2135 AC_SUBST(HAVE_NATIVE_GCORE_HOST)
2136 AC_SUBST_FILE(nat_makefile_frag)
2138 if test x"${gdb_osabi}" != x ; then
2139 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2140 [Define to the default OS ABI for this configuration.])
2143 AC_ARG_ENABLE(gdbserver,
2144 AS_HELP_STRING([--enable-gdbserver],
2145 [automatically build gdbserver (yes/no/auto, default is auto)]),
2146 [case "${enableval}" in
2148 *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2149 esac],[enable_gdbserver=auto])
2151 # We only build gdbserver automatically in a native configuration, and
2152 # only if the user did not explicitly disable its build.
2153 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2154 AC_MSG_CHECKING(whether gdbserver is supported on this host)
2155 if test "x$build_gdbserver" = xyes; then
2157 AC_CONFIG_SUBDIRS(gdbserver)
2158 gdbserver_build_enabled=yes
2164 # If the user explicitly request the gdbserver to be built, verify that
2165 # we were in fact able to enable it.
2166 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2167 AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2170 # Check for babeltrace and babeltrace-ctf
2171 AC_ARG_WITH(babeltrace,
2172 AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2173 [], [with_babeltrace=auto])
2174 AC_MSG_CHECKING([whether to use babeltrace])
2175 AC_MSG_RESULT([$with_babeltrace])
2177 if test "x$with_babeltrace" = "xno"; then
2178 AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2180 # Append -Werror to CFLAGS so that configure can catch the warning
2181 # "assignment from incompatible pointer type", which is related to
2182 # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
2183 # in GDB, while babeltrace 1.0.3 is broken.
2184 # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2185 # safe to save and restore CFLAGS here.
2186 saved_CFLAGS=$CFLAGS
2187 CFLAGS="$CFLAGS -Werror"
2188 AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2189 [#include <babeltrace/babeltrace.h>
2190 #include <babeltrace/ctf/events.h>
2191 #include <babeltrace/ctf/iterator.h>],
2192 [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2193 struct bt_ctf_event *event = NULL;
2194 const struct bt_definition *scope;
2196 pos->type = BT_SEEK_BEGIN;
2197 bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2198 scope = bt_ctf_get_top_level_scope (event,
2199 BT_STREAM_EVENT_HEADER);
2200 bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2202 CFLAGS=$saved_CFLAGS
2204 if test "$HAVE_LIBBABELTRACE" != yes; then
2205 if test "$with_babeltrace" = yes; then
2206 AC_MSG_ERROR([babeltrace is missing or unusable])
2208 AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2213 # If nativefile (NAT_FILE) is not set in configure.nat, we link to an
2220 if test "${nativefile}" != ""; then
2221 case "${nativefile}" in
2222 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2223 * ) GDB_NM_FILE="${nativefile}"
2225 files="${files} ${GDB_NM_FILE}"
2226 links="${links} nm.h"
2227 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2229 AC_SUBST(GDB_NM_FILE)
2231 dnl Add dependency for xsltproc if building with maintainer-mode enabled.
2232 AC_PATH_PROGS(XSLTPROC, xsltproc, missing)
2233 if test "x$USE_MAINTAINER_MODE" = xyes; then
2234 if test "${XSLTPROC}" = missing; then
2235 AC_ERROR(unable to find xsltproc. maintainer-mode requires xsltproc.)
2240 AC_LINK_FILES($files, $links)
2242 dnl Check for exe extension set on certain hosts (e.g. Win32)
2245 dnl Detect the character set used by this host.
2246 dnl At the moment, we just assume it's UTF-8.
2247 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2248 [Define to be a string naming the default host character set.])
2251 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_UNITTESTS_OBS) gdbsupport/selftest.o selftest-arch.o"
2252 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_UNITTESTS_SRCS) gdbsupport/selftest.c selftest-arch.c"
2255 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2256 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2257 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2258 AC_CONFIG_FILES([Makefile gdb-gdb.gdb gdb-gdb.py doc/Makefile data-directory/Makefile],
2260 case x$CONFIG_HEADERS in
2261 xconfig.h:config.in)