1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright (C) 1995-2017 Free Software Foundation, Inc.
4 dnl This file is part of GDB.
6 dnl This program is free software; you can redistribute it and/or modify
7 dnl it under the terms of the GNU General Public License as published by
8 dnl the Free Software Foundation; either version 3 of the License, or
9 dnl (at your option) any later version.
11 dnl This program is distributed in the hope that it will be useful,
12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 dnl GNU General Public License for more details.
16 dnl You should have received a copy of the GNU General Public License
17 dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
19 dnl Process this file with autoconf to produce a configure script.
23 AC_CONFIG_HEADER(config.h:config.in)
26 # Set the 'development' global.
27 . $srcdir/../bfd/development.sh
32 AC_USE_SYSTEM_EXTENSIONS
41 # We require a C++11 compiler. Check if one is available, and if
42 # necessary, set CXX_DIALECT to some -std=xxx switch.
43 AX_CXX_COMPILE_STDCXX(11, , mandatory)
45 # Dependency checking.
47 # Create sub-directories for objects and dependencies.
48 CONFIG_SRC_SUBDIR="arch"
49 AC_SUBST(CONFIG_SRC_SUBDIR)
51 AC_CONFIG_COMMANDS([gdbdepdir],[
52 for subdir in ${CONFIG_SRC_SUBDIR}
54 $SHELL $ac_aux_dir/mkinstalldirs $subdir/$DEPDIR
56 [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR CONFIG_SRC_SUBDIR="$CONFIG_SRC_SUBDIR"])
58 ZW_PROG_COMPILER_DEPENDENCIES([CC])
60 gnulib_extra_configure_args=
61 # If large-file support is disabled, make sure gnulib does the same.
62 if test "$enable_largefile" = no; then
63 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
66 # Configure gnulib. We need to build gnulib under some other
67 # directory not "gnulib", to avoid the problem of both GDB and
68 # GDBserver wanting to build it in the same directory, when building
70 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"],
71 ["$gnulib_extra_configure_args"])
73 dnl List of object files and targets accumulated by configure.
85 dnl Set up for gettext.
86 ZW_GNU_GETTEXT_SISTER_DIR
88 localedir='${datadir}/locale'
91 if test x"$USE_NLS" = xyes; then
92 CONFIG_ALL="$CONFIG_ALL all-po"
93 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
94 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
95 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
98 GNULIB=build-gnulib/import
100 # For Makefile dependencies.
102 if test x"$STDINT_H" != x; then
103 GNULIB_STDINT_H=$GNULIB/$STDINT_H
105 AC_SUBST(GNULIB_STDINT_H)
108 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
111 # We never need to detect it in this sub-configure.
112 # But preserve it for config.status --recheck.
114 [Parent configure detects if it is of sufficient version.])
115 AC_ARG_VAR(MAKEINFOFLAGS,
116 [Parameters for MAKEINFO.])
118 MAKEINFO_EXTRA_FLAGS=""
119 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
120 [echo '@clicksequence{a @click{} b}' >conftest.texinfo
121 if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
122 gdb_cv_have_makeinfo_click=yes
124 gdb_cv_have_makeinfo_click=no
126 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
127 MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
129 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
131 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
132 [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
135 # We can't pass paths as command line arguments.
136 # Mingw32 tries to be clever and will convert the paths for us.
137 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
138 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
139 # This breaks GDB's relocatable path conversions since paths passed in
140 # config.h would not get so translated, the path prefixes no longer match.
141 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
143 # GDB's datadir relocation
145 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
146 [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
149 AC_ARG_WITH(relocated-sources,
150 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
151 [reloc_srcdir="${withval}"
152 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
153 [Relocated directory for source files. ])
156 AC_MSG_CHECKING([for default auto-load directory])
157 AC_ARG_WITH(auto-load-dir,
158 AS_HELP_STRING([--with-auto-load-dir=PATH],
159 [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
160 [with_auto_load_dir='$debugdir:$datadir/auto-load'])
161 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
162 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
163 [Directories from which to load auto-loaded scripts.])
164 AC_MSG_RESULT([$with_auto_load_dir])
166 AC_MSG_CHECKING([for default auto-load safe-path])
167 AC_ARG_WITH(auto-load-safe-path,
168 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
169 [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
170 AS_HELP_STRING([--without-auto-load-safe-path],
171 [do not restrict auto-loaded files locations]),
172 [if test "$with_auto_load_safe_path" = "no"; then
173 with_auto_load_safe_path="/"
175 [with_auto_load_safe_path="$with_auto_load_dir"])
176 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
177 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
178 [Directories safe to hold auto-loaded files.])
179 AC_MSG_RESULT([$with_auto_load_safe_path])
181 AC_CONFIG_SUBDIRS(testsuite)
183 # Check whether to support alternative target configurations
184 AC_ARG_ENABLE(targets,
185 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
186 [case "${enableval}" in
187 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
189 no) enable_targets= ;;
190 *) enable_targets=$enableval ;;
193 # Check whether to enable 64-bit support on 32-bit hosts
194 AC_ARG_ENABLE(64-bit-bfd,
195 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
196 [case "${enableval}" in
199 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
200 esac],[want64=false])dnl
202 # Provide defaults for some variables set by the per-host and per-target
204 gdb_host_obs=posix-hdep.o
206 if test "${target}" = "${host}"; then
212 . $srcdir/configure.host
214 # Add in the common host objects.
215 . $srcdir/common/common.host
216 gdb_host_obs="$gdb_host_obs $common_host_obs"
218 # Accumulate some settings from configure.tgt over all enabled targets
222 HAVE_NATIVE_GCORE_TARGET=
224 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
226 if test "$targ_alias" = "all"; then
229 # Canonicalize the secondary target names.
230 result=`$ac_config_sub $targ_alias 2>/dev/null`
231 if test -n "$result"; then
237 . ${srcdir}/configure.tgt
239 AS_IF([test -z "${gdb_target_obs}"],
240 [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
242 # Target-specific object files
243 for i in ${gdb_target_obs}; do
244 case " $TARGET_OBS " in
247 TARGET_OBS="$TARGET_OBS ${i}"
252 # Check whether this target needs 64-bit CORE_ADDR
253 if test x${want64} = xfalse; then
254 . ${srcdir}/../bfd/config.bfd
257 # Check whether this target is native and supports gcore.
258 if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
259 && $gdb_have_gcore; then
260 HAVE_NATIVE_GCORE_TARGET=1
265 if test x${all_targets} = xtrue; then
267 # We want all 64-bit targets if we either:
268 # - run on a 64-bit host or
269 # - already require 64-bit support for some other target or
270 # - the --enable-64-bit-bfd option was supplied
271 # Otherwise we only support all 32-bit targets.
273 # NOTE: This test must be in sync with the corresponding
276 if test x${want64} = xfalse; then
277 AC_CHECK_SIZEOF(long)
278 if test "x${ac_cv_sizeof_long}" = "x8"; then
282 if test x${want64} = xtrue; then
283 TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
285 TARGET_OBS='$(ALL_TARGET_OBS)'
290 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
292 # For other settings, only the main target counts.
296 targ=$target; . ${srcdir}/configure.tgt
298 # Fetch the default architecture and default target vector from BFD.
299 targ=$target; . $srcdir/../bfd/config.bfd
301 # We only want the first architecture, so strip off the others if
302 # there is more than one.
303 targ_archs=`echo $targ_archs | sed 's/ .*//'`
305 if test "x$targ_archs" != x; then
306 AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
307 [Define to BFD's default architecture. ])
309 if test "x$targ_defvec" != x; then
310 AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
311 [Define to BFD's default target vector. ])
314 # The CLI cannot be disabled yet, but may be in the future.
317 AC_ARG_ENABLE(gdbcli,
318 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
323 AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
325 AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
328 if test x"$enable_gdbcli" = xyes; then
329 if test -d $srcdir/cli; then
330 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
331 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
332 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
333 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
339 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
344 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
347 if test x"$enable_gdbmi" = xyes; then
348 if test -d $srcdir/mi; then
349 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
350 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
351 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
352 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
358 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
363 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
364 esac],enable_tui=auto)
368 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
373 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
375 [if test -d $srcdir/gdbtk; then
380 # We unconditionally disable gdbtk tests on selected platforms.
383 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
387 # Libunwind support for ia64.
389 AC_ARG_WITH(libunwind-ia64,
390 AS_HELP_STRING([--with-libunwind-ia64],
391 [use libunwind frame unwinding for ia64 targets]),,
392 [with_libunwind_ia64=auto])
394 # Backward compatibility option.
395 if test "${with_libunwind+set}" = set; then
396 if test x"$with_libunwind_ia64" != xauto; then
398 [option --with-libunwind is deprecated, use --with-libunwind-ia64])
400 AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
401 with_libunwind_ia64="$with_libunwind"
404 case "$with_libunwind_ia64" in
408 AC_CHECK_HEADERS(libunwind-ia64.h)
409 with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
413 [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
417 if test x"$with_libunwind_ia64" = xyes; then
418 AC_CHECK_HEADERS(libunwind-ia64.h)
419 if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
420 AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
422 CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
423 CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
424 CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
428 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
431 if test "$opt_curses" = "yes"; then
436 AC_ARG_ENABLE(profiling,
437 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
442 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
444 [enable_profiling=no])
446 AC_CHECK_FUNCS(monstartup _mcleanup)
447 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
452 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
453 if test $ac_cv_var__etext = yes; then
454 AC_DEFINE(HAVE__ETEXT, 1,
455 [Define to 1 if your system has the _etext variable. ])
457 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
462 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
463 if test $ac_cv_var_etext = yes; then
464 AC_DEFINE(HAVE_ETEXT, 1,
465 [Define to 1 if your system has the etext variable. ])
467 if test "$enable_profiling" = yes ; then
468 if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
469 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
473 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
475 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
476 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
477 ac_cv_cc_supports_pg=no)])
479 if test $ac_cv_cc_supports_pg = no; then
480 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
486 ACX_PKGVERSION([GDB])
487 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
488 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
489 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
491 # --------------------- #
492 # Checks for programs. #
493 # --------------------- #
501 AC_CHECK_TOOL(AR, ar)
502 AC_CHECK_TOOL(DLLTOOL, dlltool)
503 AC_CHECK_TOOL(WINDRES, windres)
507 # Needed for GNU Hurd hosts.
508 AC_CHECK_TOOL(MIG, mig)
509 if test x"$MIG" = x; then
510 AC_MSG_ERROR([MIG not found but required for $host hosts])
515 # ---------------------- #
516 # Checks for libraries. #
517 # ---------------------- #
519 # We might need to link with -lm; most simulators need it.
520 AC_CHECK_LIB(m, main)
522 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
523 AC_SEARCH_LIBS(gethostbyname, nsl)
525 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
526 AC_SEARCH_LIBS(socketpair, socket)
528 # Link in zlib if we can. This allows us to read compressed debug sections.
531 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
532 # On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
533 AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
534 [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
535 [Define to 1 if your system has the kinfo_getvmmap function. ])])
539 # GDB may fork/exec the iconv program to get the list of supported character
540 # sets. Allow the user to specify where to find it.
541 # There are several factors affecting the choice of option name:
542 # - There is already --with-libiconv-prefix but we can't use it, it specifies
543 # the build-time location of libiconv files.
544 # - The program we need to find is iconv, which comes with glibc. The user
545 # doesn't necessarily have libiconv installed. Therefore naming this
546 # --with-libiconv-foo feels wrong.
547 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
548 # defined to work on directories not files (though it really doesn't know
550 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
551 # with --with-libiconv-prefix.
552 # Putting these together is why the option name is --with-iconv-bin.
554 AC_ARG_WITH(iconv-bin,
555 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
556 [iconv_bin="${withval}"
557 AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
558 [Path of directory of iconv program.])
559 GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
562 # For the TUI, we need enhanced curses functionality.
563 if test x"$enable_tui" != xno; then
568 if test x"$prefer_curses" = xyes; then
569 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
570 # curses library because the latter might not provide all the
571 # functionality we need. However, this leads to problems on systems
572 # where the linker searches /usr/local/lib, but the compiler doesn't
573 # search /usr/local/include, if ncurses is installed in /usr/local. A
574 # default installation of ncurses on alpha*-dec-osf* will lead to such
576 AC_SEARCH_LIBS(waddstr, [ncursesw ncurses cursesX curses])
578 if test "$ac_cv_search_waddstr" != no; then
583 # Check whether we should enable the TUI, but only do so if we really
585 if test x"$enable_tui" != xno; then
586 if test -d $srcdir/tui; then
587 if test "$curses_found" != no; then
588 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
589 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
590 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
591 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
593 if test x"$enable_tui" = xyes; then
594 AC_MSG_ERROR([no enhanced curses library found; disable TUI])
596 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
602 # Since GDB uses Readline, we need termcap functionality. In many
603 # cases this will be provided by the curses library, but some systems
604 # have a separate termcap library, or no curses library at all.
608 if test -d $srcdir/libtermcap; then
609 LIBS="../libtermcap/libtermcap.a $LIBS"
610 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
613 ac_cv_search_tgetent="none required"
617 # These are the libraries checked by Readline.
618 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncursesw ncurses])
620 if test "$ac_cv_search_tgetent" = no; then
621 CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
624 AC_ARG_WITH([system-readline],
625 [AS_HELP_STRING([--with-system-readline],
626 [use installed readline library])])
628 if test "$with_system_readline" = yes; then
632 READLINE_TEXI_INCFLAG=
634 READLINE='$(READLINE_DIR)/libreadline.a'
635 READLINE_DEPS='$(READLINE)'
636 READLINE_CFLAGS='-I$(READLINE_SRC)/..'
637 READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
640 AC_SUBST(READLINE_DEPS)
641 AC_SUBST(READLINE_CFLAGS)
642 AC_SUBST(READLINE_TEXI_INCFLAG)
644 # Generate jit-reader.h
646 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
649 AC_CHECK_SIZEOF(unsigned long long)
650 AC_CHECK_SIZEOF(unsigned long)
651 AC_CHECK_SIZEOF(unsigned __int128)
653 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
654 TARGET_PTR="unsigned long"
655 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
656 TARGET_PTR="unsigned long long"
657 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
658 TARGET_PTR="unsigned __int128"
660 TARGET_PTR="unsigned long"
664 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
666 AC_SEARCH_LIBS(dlopen, dl)
668 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
669 [directory to load the JIT readers from],
673 AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
674 [], [with_expat=auto])
675 AC_MSG_CHECKING([whether to use expat])
676 AC_MSG_RESULT([$with_expat])
678 if test "${with_expat}" = no; then
679 AC_MSG_WARN([expat support disabled; some features may be unavailable.])
682 AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
683 [XML_Parser p = XML_ParserCreate (0);])
684 if test "$HAVE_LIBEXPAT" != yes; then
685 if test "$with_expat" = yes; then
686 AC_MSG_ERROR([expat is missing or unusable])
688 AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
692 LIBS="$LIBS $LIBEXPAT"
693 AC_CHECK_FUNCS(XML_StopParser)
698 # --------------------- #
699 # Check for libpython. #
700 # --------------------- #
702 dnl Utility to simplify finding libpython.
704 dnl $2 = the shell variable to assign the result to
705 dnl If libpython is found we store $version here.
706 dnl $3 = additional flags to add to CPPFLAGS
707 dnl $4 = additional flags to add to LIBS
709 AC_DEFUN([AC_TRY_LIBPYTHON],
712 define([have_libpython_var],$2)
715 AC_MSG_CHECKING([for ${version}])
716 save_CPPFLAGS=$CPPFLAGS
718 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
719 LIBS="$LIBS $new_LIBS"
720 found_usable_python=no
721 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
722 [[Py_Initialize ();]]),
723 [have_libpython_var=${version}
724 found_usable_python=yes
725 PYTHON_CPPFLAGS=$new_CPPFLAGS
726 PYTHON_LIBS=$new_LIBS])
727 CPPFLAGS=$save_CPPFLAGS
729 AC_MSG_RESULT([${found_usable_python}])
732 dnl There are several different values for --with-python:
734 dnl no - Don't include python support.
735 dnl yes - Include python support, error if it's missing.
736 dnl If we find python in $PATH, use it to fetch configure options,
737 dnl otherwise assume the compiler can find it with no help from us.
738 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
739 dnl auto - Same as "yes", but if python is missing from the system,
740 dnl fall back to "no".
741 dnl /path/to/python/exec-prefix -
742 dnl Use the python located in this directory.
743 dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
744 dnl the compilation parameters. Otherwise use
745 dnl -I/path/to/python/exec-prefix/include,
746 dnl -L/path/to/python/exec-prefix/lib.
747 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
748 dnl NOTE: This case is historical. It is what was done for 7.0/7.1
749 dnl but is deprecated.
750 dnl /path/to/python/executable -
751 dnl Run python-config.py with this version of python to fetch the
752 dnl compilation parameters.
753 dnl NOTE: This needn't be the real python executable.
754 dnl In a cross-compilation scenario (build != host), this could be
755 dnl a shell script that provides what python-config.py provides for
756 dnl --ldflags, --includes, --exec-prefix.
757 dnl python-executable -
758 dnl Find python-executable in $PATH, and then handle the same as
759 dnl /path/to/python/executable.
761 dnl If a python program is specified, it is used to run python-config.py and
762 dnl is passed --ldflags, --includes, --exec-prefix.
765 AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
766 [], [with_python=auto])
767 AC_MSG_CHECKING([whether to use python])
768 AC_MSG_RESULT([$with_python])
770 if test "${with_python}" = no; then
771 AC_MSG_WARN([python support disabled; some features may be unavailable.])
774 case "${with_python}" in
775 [[\\/]]* | ?:[[\\/]]*)
776 if test -d ${with_python}; then
777 # Assume the python binary is ${with_python}/bin/python.
778 python_prog="${with_python}/bin/python"
780 # If python does not exit ${with_python}/bin, then try in
781 # ${with_python}. On Windows/MinGW, this is where the Python
783 if test ! -x "${python_prog}"; then
784 python_prog="${with_python}/python"
787 if test ! -x "${python_prog}"; then
788 # Fall back to gdb 7.0/7.1 behaviour.
790 python_prefix=${with_python}
792 elif test -x "${with_python}"; then
793 # While we can't run python compiled for $host (unless host == build),
794 # the user could write a script that provides the needed information,
795 # so we support that.
796 python_prog=${with_python}
799 AC_ERROR(invalid value for --with-python)
803 # Disallow --with-python=foo/bar.
804 AC_ERROR(invalid value for --with-python)
807 # The user has either specified auto, yes, or the name of the python
808 # program assumed to be in $PATH.
810 case "${with_python}" in
812 if test ${build} = ${host}; then
813 AC_PATH_PROG(python_prog_path, python, missing)
814 if test "${python_prog_path}" = missing; then
817 python_prog=${python_prog_path}
820 # Not much we can do except assume the cross-compiler will find the
826 # While we can't run python compiled for $host (unless host == build),
827 # the user could write a script that provides the needed information,
828 # so we support that.
829 python_prog="${with_python}"
830 AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
831 if test "${python_prog_path}" = missing; then
832 AC_ERROR(unable to find python program ${python_prog})
838 if test "${python_prog}" != missing; then
839 # We have a python program to use, but it may be too old.
840 # Don't flag an error for --with-python=auto (the default).
841 have_python_config=yes
842 python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
843 if test $? != 0; then
844 have_python_config=failed
845 if test "${with_python}" != auto; then
846 AC_ERROR(failure running python-config --includes)
849 python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
850 if test $? != 0; then
851 have_python_config=failed
852 if test "${with_python}" != auto; then
853 AC_ERROR(failure running python-config --ldflags)
856 python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
857 if test $? != 0; then
858 have_python_config=failed
859 if test "${with_python}" != auto; then
860 AC_ERROR(failure running python-config --exec-prefix)
864 # We do not have a python executable we can use to determine where
865 # to find the Python headers and libs. We cannot guess the include
866 # path from the python_prefix either, because that include path
867 # depends on the Python version. So, there is nothing much we can
868 # do except assume that the compiler will be able to find those files.
871 have_python_config=no
874 # If we have python-config, only try the configuration it provides.
875 # Otherwise fallback on the old way of trying different versions of
879 if test "${have_python_config}" = yes; then
880 # Determine the Python version by extracting "-lpython<version>"
881 # part of the python_libs. <version> is usually X.Y with X and Y
882 # being decimal numbers, but can also be XY (seen on Windows).
884 # The extraction is performed using sed with a regular expression.
885 # Initially, the regexp used was using the '?' quantifier to make
886 # the dot in the version number optional. Unfortunately, this
887 # does not work with non-GNU versions of sed because, because of
888 # what looks like a limitation (the '?' quantifier does not work
889 # with back-references). We work around this limitation by using
890 # the '*' quantifier instead. It means that, in theory, we might
891 # match unexpected version strings such as "-lpython2..7", but
892 # this seems unlikely in practice. And even if that happens,
893 # an error will be triggered later on, when checking that version
895 python_version=`echo " ${python_libs} " \
896 | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
897 case "${python_version}" in
899 AC_TRY_LIBPYTHON(${python_version}, have_libpython,
900 ${python_includes}, ${python_libs})
903 AC_MSG_ERROR([unable to determine python version from ${python_libs}])
906 elif test "${have_python_config}" != failed; then
907 if test "${have_libpython}" = no; then
908 AC_TRY_LIBPYTHON(python2.7, have_libpython,
909 ${python_includes}, "${python_libs} -lpython2.7")
911 if test "${have_libpython}" = no; then
912 AC_TRY_LIBPYTHON(python2.6, have_libpython,
913 ${python_includes}, "${python_libs} -lpython2.6")
915 if test ${have_libpython} = no; then
916 AC_TRY_LIBPYTHON(python2.5, have_libpython,
917 ${python_includes}, "${python_libs} -lpython2.5")
919 if test ${have_libpython} = no; then
920 AC_TRY_LIBPYTHON(python2.4, have_libpython,
921 ${python_includes}, "${python_libs} -lpython2.4")
924 if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
925 AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
926 elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
927 AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
928 elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
929 AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
930 elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
931 AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
934 if test "${have_libpython}" = no; then
935 case "${with_python}" in
937 AC_MSG_ERROR([python is missing or unusable])
940 AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
943 AC_MSG_ERROR([no usable python found at ${with_python}])
947 if test -n "${python_prefix}"; then
948 AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
949 [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
950 GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
955 if test "${have_libpython}" != no; then
956 AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
957 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
958 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
959 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
960 CONFIG_INSTALL="$CONFIG_INSTALL install-python"
961 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
963 # Flags needed to compile Python code (taken from python-config --cflags).
964 # We cannot call python-config directly because it will output whatever was
965 # used when compiling the Python interpreter itself, including flags which
966 # would make the python-related objects be compiled differently from the
967 # rest of GDB (e.g., -O2 and -fPIC).
968 if test "${GCC}" = yes; then
969 tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
972 if test "x${tentative_python_cflags}" != x; then
973 AC_MSG_CHECKING(compiler flags for python code)
974 for flag in ${tentative_python_cflags}; do
975 # Check that the compiler accepts it
976 saved_CFLAGS="$CFLAGS"
977 CFLAGS="$CFLAGS $flag"
978 AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
979 CFLAGS="$saved_CFLAGS"
981 AC_MSG_RESULT(${PYTHON_CFLAGS})
984 # On x64 Windows, Python's include headers, and pyconfig.h in
985 # particular, rely on MS_WIN64 macro to detect that it's a 64bit
986 # version of Windows. Unfortunately, MS_WIN64 is only defined if
987 # _MSC_VER, a Microsoft-specific macro, is defined. So, when
988 # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
989 # The issue was reported to the Python community, but still isn't
990 # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
994 if test "${GCC}" = yes; then
995 CPPFLAGS="$CPPFLAGS -DMS_WIN64"
1000 # Note that "python -m threading" cannot be used to check for
1001 # threading support due to a bug in Python 2.7.3
1002 # (http://bugs.python.org/issue15567).
1003 AC_MSG_CHECKING(whether python supports threads)
1004 saved_CPPFLAGS="${CPPFLAGS}"
1005 CPPFLAGS="${PYTHON_CPPFLAGS}"
1006 # Note that the test is reversed so that python_has_threads=yes on
1007 # unexpected failures.
1008 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1013 ]]), [python_has_threads=no], [python_has_threads=yes])
1014 AC_MSG_RESULT(${python_has_threads})
1015 CPPFLAGS="${saved_CPPFLAGS}"
1017 # Even if Python support is not compiled in, we need to have this file
1018 # included so that the "python" command, et.al., still exists.
1019 CONFIG_OBS="$CONFIG_OBS python.o"
1020 CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1023 # Work around Python http://bugs.python.org/issue10112. See also
1024 # http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
1025 # no effect. Note that the only test after this that uses Python is
1026 # the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
1027 # run without -export-dynamic too.
1028 PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
1030 AC_SUBST(PYTHON_CFLAGS)
1031 AC_SUBST(PYTHON_CPPFLAGS)
1032 AC_SUBST(PYTHON_LIBS)
1033 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
1035 # -------------------- #
1036 # Check for libguile. #
1037 # -------------------- #
1039 dnl Utility to simplify finding libguile.
1040 dnl $1 = pkg-config-program
1041 dnl $2 = space-separate list of guile versions to try
1042 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1043 dnl $4 = the shell variable to assign the result to
1044 dnl If libguile is found we store "yes" here.
1046 AC_DEFUN([AC_TRY_LIBGUILE],
1049 guile_version_list=$2
1051 define([have_libguile_var],$4)
1052 found_usable_guile=checking
1053 AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1054 for guile_version in ${guile_version_list}; do
1055 ${pkg_config} --exists ${guile_version} 2>/dev/null
1056 if test $? != 0; then
1059 dnl pkg-config says the package exists, so if we get an error now,
1061 new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1062 if test $? != 0; then
1063 AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1065 new_LIBS=`${pkg_config} --libs ${guile_version}`
1066 if test $? != 0; then
1067 AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1069 dnl If we get this far, great.
1070 found_usable_guile=${guile_version}
1073 if test "${found_usable_guile}" = "checking"; then
1074 if test "${flag_errors}" = "yes"; then
1075 AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1077 found_usable_guile=no
1080 dnl One final sanity check.
1081 dnl The user could have said --with-guile=python-2.7.
1082 if test "${found_usable_guile}" != no; then
1083 save_CPPFLAGS=$CPPFLAGS
1085 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1086 LIBS="$LIBS $new_LIBS"
1087 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "libguile.h"]],
1088 [[scm_init_guile ();]]),
1089 [have_libguile_var=yes
1090 GUILE_CPPFLAGS=$new_CPPFLAGS
1091 GUILE_LIBS=$new_LIBS],
1092 [found_usable_guile=no])
1093 dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1094 AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1095 AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1096 [Define if Guile supports manual finalization.])
1098 CPPFLAGS=$save_CPPFLAGS
1100 if test "${found_usable_guile}" = no; then
1101 if test "${flag_errors}" = yes; then
1102 AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1106 AC_MSG_RESULT([${found_usable_guile}])
1109 dnl There are several different values for --with-guile:
1111 dnl no - Don't include guile support.
1112 dnl yes - Include guile support, error if it's missing.
1113 dnl The pkg-config program must be in $PATH.
1114 dnl auto - Same as "yes", but if guile is missing from the system,
1115 dnl fall back to "no".
1116 dnl guile-version [guile-version-choice-2 ...] -
1117 dnl A space-separated list of guile package versions to try.
1118 dnl These are passed to pkg-config as-is.
1119 dnl E.g., guile-2.0 or guile-2.2-uninstalled
1120 dnl This requires making sure PKG_CONFIG_PATH is set appropriately.
1121 dnl /path/to/pkg-config -
1122 dnl Use this pkg-config program.
1123 dnl NOTE: This needn't be the "real" pkg-config program.
1124 dnl It could be a shell script. It is invoked as:
1125 dnl pkg-config --exists $version
1126 dnl pkg-config --cflags $version
1127 dnl pkg-config --libs $version
1128 dnl pkg-config --variable guild $version
1129 dnl The script will be called with $version having each value in
1130 dnl $try_guile_versions until --exists indicates success.
1133 AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1134 [], [with_guile=auto])
1135 AC_MSG_CHECKING([whether to use guile])
1136 AC_MSG_RESULT([$with_guile])
1138 dnl We check guile with pkg-config.
1139 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1141 try_guile_versions="guile-2.0"
1143 case "${with_guile}" in
1145 AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1148 if test "${pkg_config_prog_path}" = "missing"; then
1149 AC_MSG_WARN([pkg-config not found, guile support disabled])
1151 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1155 if test "${pkg_config_prog_path}" = "missing"; then
1156 AC_MSG_ERROR([pkg-config not found])
1158 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1160 [[\\/]]* | ?:[[\\/]]*)
1161 if test -x "${with_guile}"; then
1162 AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1164 AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1168 # Disallow --with=guile="" and --with-guile=foo/bar.
1169 AC_MSG_ERROR([invalid value for --with-guile])
1172 # A space separate list of guile versions to try, in order.
1173 if test "${pkg_config_prog_path}" = "missing"; then
1174 AC_MSG_ERROR([pkg-config not found])
1176 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1180 if test "${have_libguile}" != no; then
1181 dnl Get the name of the 'guild' program.
1182 case "${with_guile}" in
1183 [[\\/]]* | ?:[[\\/]]*)
1184 GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1187 GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1191 dnl Make sure guild can handle this host.
1192 GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1193 dnl If not, disable guile support.
1194 if test "$ac_cv_guild_ok" = no; then
1196 AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1200 if test "${have_libguile}" != no; then
1201 AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1202 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1203 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1204 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1205 CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1206 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1208 dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1210 save_CPPFLAGS="$CPPFLAGS"
1212 CPPFLAGS="$GUILE_CPPFLAGS"
1213 AC_CHECK_FUNCS([scm_new_smob])
1215 CPPFLAGS="$save_CPPFLAGS"
1217 # Even if Guile support is not compiled in, we need to have these files
1219 CONFIG_OBS="$CONFIG_OBS guile.o"
1220 CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1222 AC_SUBST(GUILE_CPPFLAGS)
1223 AC_SUBST(GUILE_LIBS)
1224 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1226 # --------------------- #
1227 # Check for libmcheck. #
1228 # --------------------- #
1230 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1231 # but turn it off if Python is enabled with threads, since -lmcheck is
1232 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1234 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1235 && $development; then
1236 libmcheck_default=yes
1238 libmcheck_default=no
1240 GDB_AC_LIBMCHECK(${libmcheck_default})
1242 if test "$ENABLE_LIBMCHECK" = "yes" \
1243 -a "${have_libpython}" != "no" \
1244 -a "${python_has_threads}" = "yes" ; then
1245 AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1248 AC_ARG_WITH(intel_pt,
1249 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
1250 [], [with_intel_pt=auto])
1251 AC_MSG_CHECKING([whether to use intel pt])
1252 AC_MSG_RESULT([$with_intel_pt])
1254 if test "${with_intel_pt}" = no; then
1255 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
1258 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1259 #include <linux/perf_event.h>
1260 #ifndef PERF_ATTR_SIZE_VER5
1263 ]]), [perf_event=yes], [perf_event=no])
1264 if test "$perf_event" != yes; then
1265 if test "$with_intel_pt" = yes; then
1266 AC_MSG_ERROR([linux/perf_event.h missing or too old])
1268 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
1272 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
1273 if test "$HAVE_LIBIPT" != yes; then
1274 if test "$with_intel_pt" = yes; then
1275 AC_MSG_ERROR([libipt is missing or unusable])
1277 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
1281 LIBS="$LIBS $LIBIPT"
1282 AC_CHECK_FUNCS(pt_insn_event)
1283 AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
1284 [#include <intel-pt.h>])
1289 # ------------------------- #
1290 # Checks for header files. #
1291 # ------------------------- #
1294 # elf_hp.h is for HP/UX 64-bit shared library support.
1295 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1298 sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1299 sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1300 sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1301 termios.h elf_hp.h \
1303 AC_CHECK_HEADERS(sys/proc.h, [], [],
1304 [#if HAVE_SYS_PARAM_H
1305 # include <sys/param.h>
1308 AC_CHECK_HEADERS(sys/user.h, [], [],
1309 [#if HAVE_SYS_PARAM_H
1310 # include <sys/param.h>
1314 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncursesw/ncurses.h ncurses/ncurses.h ncurses/term.h)
1315 AC_CHECK_HEADERS(term.h, [], [],
1317 # include <curses.h>
1321 # ------------------------- #
1322 # Checks for declarations. #
1323 # ------------------------- #
1327 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1330 # ----------------------- #
1331 # Checks for structures. #
1332 # ----------------------- #
1334 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1336 # ------------------ #
1337 # Checks for types. #
1338 # ------------------ #
1340 AC_CHECK_TYPES(socklen_t, [], [],
1341 [#include <sys/types.h>
1342 #include <sys/socket.h>
1345 # ------------------------------------- #
1346 # Checks for compiler characteristics. #
1347 # ------------------------------------- #
1353 # ------------------------------ #
1354 # Checks for library functions. #
1355 # ------------------------------ #
1359 AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
1360 pipe poll pread pread64 pwrite resize_term \
1361 sbrk setpgid setpgrp setsid \
1362 sigaction sigprocmask sigsetmask socketpair \
1363 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1364 setrlimit getrlimit posix_madvise waitpid \
1365 ptrace64 sigaltstack mkdtemp setns])
1369 # Check the return and argument types of ptrace.
1372 dnl AC_FUNC_SETPGRP does not work when cross compiling
1373 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1374 if test "$cross_compiling" = no; then
1377 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1381 if (setpgrp(1,1) == -1)
1385 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1386 if test $ac_cv_func_setpgrp_void = yes; then
1387 AC_DEFINE(SETPGRP_VOID, 1)
1391 # Assume we'll default to using the included libiberty regex.
1392 gdb_use_included_regex=yes
1394 # However, if the system regex is GNU regex, then default to *not*
1395 # using the included regex.
1398 [gdb_cv_have_gnu_regex],
1400 [#include <gnu-versions.h>],
1401 [#define REGEX_INTERFACE_VERSION 1
1402 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1403 # error "Version mismatch"
1405 gdb_cv_have_gnu_regex=yes,
1406 gdb_cv_have_gnu_regex=no)])
1407 if test $gdb_cv_have_gnu_regex = yes; then
1408 gdb_use_included_regex=no
1411 AC_ARG_WITH(included-regex,
1412 AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1413 gdb_with_regex=$withval,
1414 gdb_with_regex=$gdb_use_included_regex)
1415 if test "$gdb_with_regex" = yes; then
1416 AC_DEFINE(USE_INCLUDED_REGEX, 1,
1417 [Define to 1 if the regex included in libiberty should be used.])
1420 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1421 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1422 [#include <sys/param.h>
1423 #include <sys/proc.h>
1426 # See if <sys/lwp.h> defines `struct lwp`.
1427 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1428 [AC_TRY_COMPILE([#include <sys/param.h>
1430 #include <sys/lwp.h>], [struct lwp l;],
1431 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1432 if test $gdb_cv_struct_lwp = yes; then
1433 AC_DEFINE(HAVE_STRUCT_LWP, 1,
1434 [Define to 1 if your system has struct lwp.])
1437 # See if <machine/reg.h> degines `struct reg'.
1438 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1439 [AC_TRY_COMPILE([#include <sys/types.h>
1440 #include <machine/reg.h>], [struct reg r;],
1441 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1442 if test $gdb_cv_struct_reg = yes; then
1443 AC_DEFINE(HAVE_STRUCT_REG, 1,
1444 [Define to 1 if your system has struct reg in <machine/reg.h>.])
1447 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1448 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1449 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1450 [#include <sys/types.h>
1451 #include <machine/reg.h>])
1453 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1454 # Older amd64 Linux's don't have the fs_base and gs_base members of
1455 # `struct user_regs_struct'.
1456 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1457 [], [], [#include <sys/user.h>])
1459 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1460 AC_MSG_CHECKING(for PTRACE_GETREGS)
1461 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1462 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1464 [gdb_cv_have_ptrace_getregs=yes],
1465 [gdb_cv_have_ptrace_getregs=no])])
1466 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1467 if test $gdb_cv_have_ptrace_getregs = yes; then
1468 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1469 [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1472 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1473 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1474 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1475 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1476 [PTRACE_GETFPXREGS;],
1477 [gdb_cv_have_ptrace_getfpxregs=yes],
1478 [gdb_cv_have_ptrace_getfpxregs=no])])
1479 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1480 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1481 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1482 [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1485 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1486 AC_MSG_CHECKING(for PT_GETDBREGS)
1487 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1488 [AC_TRY_COMPILE([#include <sys/types.h>
1489 #include <sys/ptrace.h>],
1491 [gdb_cv_have_pt_getdbregs=yes],
1492 [gdb_cv_have_pt_getdbregs=no])])
1493 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1494 if test $gdb_cv_have_pt_getdbregs = yes; then
1495 AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1496 [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1499 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1500 AC_MSG_CHECKING(for PT_GETXMMREGS)
1501 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1502 [AC_TRY_COMPILE([#include <sys/types.h>
1503 #include <sys/ptrace.h>],
1505 [gdb_cv_have_pt_getxmmregs=yes],
1506 [gdb_cv_have_pt_getxmmregs=no])])
1507 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1508 if test $gdb_cv_have_pt_getxmmregs = yes; then
1509 AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1510 [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1513 # See if <sys/ptrace.h> supports LWP names on FreeBSD
1514 # Older FreeBSD versions don't have the pl_tdname member of
1515 # `struct ptrace_lwpinfo'.
1516 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
1517 [#include <sys/ptrace.h>])
1519 # See if <sys/ptrace.h> supports syscall fields on FreeBSD. The
1520 # pl_syscall_code member of `struct ptrace_lwpinfo' was added in
1522 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
1523 [#include <sys/ptrace.h>])
1525 # Detect which type of /proc is in use, such as for Solaris.
1527 if test "${target}" = "${host}"; then
1529 *-*-sysv4.2* | *-*-sysv5* )
1530 AC_DEFINE(NEW_PROC_API, 1,
1531 [Define if you want to use new multi-fd /proc interface.])
1533 *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1534 AC_DEFINE(NEW_PROC_API, 1,
1535 [Define if you want to use new multi-fd /proc interface.])
1540 if test "$ac_cv_header_sys_procfs_h" = yes; then
1541 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1542 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1543 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1544 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1545 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1546 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1547 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1548 BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1549 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1550 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1551 BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1554 dnl Check for broken prfpregset_t type
1556 dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1557 dnl prfpregset_t type (it's a typedef for the pointer to a struct
1558 dnl instead of the struct itself). We detect this here, and work
1559 dnl around it in gdb_proc_service.h.
1561 if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1562 AC_MSG_CHECKING(whether prfpregset_t type is broken)
1563 AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1564 [AC_TRY_RUN([#include <sys/procfs.h>
1567 if (sizeof (prfpregset_t) == sizeof (void *))
1571 gdb_cv_prfpregset_t_broken=no,
1572 gdb_cv_prfpregset_t_broken=yes,
1573 gdb_cv_prfpregset_t_broken=yes)])
1574 AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1575 if test $gdb_cv_prfpregset_t_broken = yes; then
1576 AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1577 [Define if the prfpregset_t type is broken.])
1582 # Check if the compiler supports the `long long' type.
1584 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1585 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1586 [[extern long long foo;]],
1587 [[switch (foo & 2) { case 0: return 1; }]])],
1588 gdb_cv_c_long_long=yes,
1589 gdb_cv_c_long_long=no)])
1590 if test $gdb_cv_c_long_long != yes; then
1591 # libdecnumber requires long long.
1592 AC_MSG_ERROR([Compiler must support long long for GDB.])
1595 # Check if the compiler and runtime support printing long longs.
1597 AC_CACHE_CHECK([for long long support in printf],
1598 gdb_cv_printf_has_long_long,
1599 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1602 l = (l << 16) + 0x0123;
1603 l = (l << 16) + 0x4567;
1604 l = (l << 16) + 0x89ab;
1605 l = (l << 16) + 0xcdef;
1606 sprintf (buf, "0x%016llx", l);
1607 return (strcmp ("0x0123456789abcdef", buf));]])],
1608 gdb_cv_printf_has_long_long=yes,
1609 gdb_cv_printf_has_long_long=no,
1610 gdb_cv_printf_has_long_long=no)])
1611 if test $gdb_cv_printf_has_long_long = yes; then
1612 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1613 [Define to 1 if the "%ll" format works to print long longs.])
1616 # Check if the compiler and runtime support printing decfloats.
1618 AC_CACHE_CHECK([for decfloat support in printf],
1619 gdb_cv_printf_has_decfloat,
1620 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1622 _Decimal32 d32 = 1.2345df;
1623 _Decimal64 d64 = 1.2345dd;
1624 _Decimal128 d128 = 1.2345dl;
1625 sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1626 return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1627 gdb_cv_printf_has_decfloat=yes,
1628 gdb_cv_printf_has_decfloat=no,
1629 gdb_cv_printf_has_decfloat=no)])
1630 if test $gdb_cv_printf_has_decfloat = yes; then
1631 AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1632 [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1635 # Check if the compiler supports the `long double' type. We can't use
1636 # AC_C_LONG_DOUBLE because that one does additional checks on the
1637 # constants defined in <float.h> that fail on some systems,
1638 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1640 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1641 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1642 gdb_cv_c_long_double=yes,
1643 gdb_cv_c_long_double=no)])
1644 if test $gdb_cv_c_long_double = yes; then
1645 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1646 [Define to 1 if the compiler supports long double.])
1649 # Check if the compiler and runtime support printing long doubles.
1651 AC_CACHE_CHECK([for long double support in printf],
1652 gdb_cv_printf_has_long_double,
1653 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1655 long double f = 3.141592653;
1656 sprintf (buf, "%Lg", f);
1657 return (strncmp ("3.14159", buf, 7));]])],
1658 gdb_cv_printf_has_long_double=yes,
1659 gdb_cv_printf_has_long_double=no,
1660 gdb_cv_printf_has_long_double=no)])
1661 if test $gdb_cv_printf_has_long_double = yes; then
1662 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1663 [Define to 1 if the "%Lg" format works to print long doubles.])
1666 # Check if the compiler and runtime support scanning long doubles.
1668 AC_CACHE_CHECK([for long double support in scanf],
1669 gdb_cv_scanf_has_long_double,
1670 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1671 [[#include <stdio.h>]],
1672 [[char *buf = "3.141592653";
1674 sscanf (buf, "%Lg", &f);
1675 return !(f > 3.14159 && f < 3.14160);]])],
1676 gdb_cv_scanf_has_long_double=yes,
1677 gdb_cv_scanf_has_long_double=no,
1678 gdb_cv_scanf_has_long_double=no)])
1679 if test $gdb_cv_scanf_has_long_double = yes; then
1680 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1681 [Define to 1 if the "%Lg" format works to scan long doubles.])
1686 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1687 SAVE_LDFLAGS=$LDFLAGS
1690 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1691 *) gdb_cv_bigtoc=-bbigtoc ;;
1694 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1695 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1696 LDFLAGS="${SAVE_LDFLAGS}"
1698 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1702 AC_MSG_CHECKING(for the dynamic export flag)
1704 if test "${gdb_native}" = yes; then
1705 # The dynamically loaded libthread_db needs access to symbols in the gdb
1706 # executable. Older GNU ld supports --export-dynamic but --dynamic-list
1707 # may not be supported there.
1708 old_LDFLAGS="$LDFLAGS"
1709 # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1710 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1711 LDFLAGS="$LDFLAGS $RDYNAMIC"
1712 if test "${have_libpython}" = no; then
1713 AC_TRY_LINK([], [], [dynamic_list=true])
1715 # Workaround http://bugs.python.org/issue4434 where static
1716 # libpythonX.Y.a would get its symbols required for
1717 # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1718 # Problem does not happen for the recommended libpythonX.Y.so linkage.
1720 # Note the workaround for Python
1721 # http://bugs.python.org/issue10112 earlier has removed
1722 # -export-dynamic from PYTHON_LIBS. That's exactly what we want
1723 # here too, as otherwise it'd make this -Wl,--dynamic-list test
1725 old_CFLAGS="$CFLAGS"
1726 CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1728 LIBS="$LIBS $PYTHON_LIBS"
1729 old_CPPFLAGS="$CPPFLAGS"
1730 CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
1733 [#include "Python.h"],
1736 err = PyRun_SimpleString ("import itertools\n");
1738 return err == 0 ? 0 : 1;]),
1739 [dynamic_list=true], [], [true])
1741 CFLAGS="$old_CFLAGS"
1742 CPPFLAGS="$old_CPPFLAGS"
1744 LDFLAGS="$old_LDFLAGS"
1746 if $dynamic_list; then
1747 found="-Wl,--dynamic-list"
1748 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1751 RDYNAMIC="-rdynamic"
1754 AC_MSG_RESULT($found)
1756 dnl For certain native configurations, we need to check whether thread
1757 dnl support can be built in or not.
1759 dnl Note that we only want this if we are both native (host == target),
1760 dnl and not doing a canadian cross build (build == host).
1762 if test ${build} = ${host} -a ${host} = ${target} ; then
1765 AC_MSG_CHECKING(for AiX thread debugging library)
1766 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1767 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1768 [#ifndef PTHDB_VERSION_3
1771 gdb_cv_have_aix_thread_debug=yes,
1772 gdb_cv_have_aix_thread_debug=no)])
1773 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1774 if test $gdb_cv_have_aix_thread_debug = yes; then
1775 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1776 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1777 LIBS="$LIBS -lpthdebug"
1779 # Older versions of AIX do not provide the declaration for
1780 # the getthrds function (it appears that it was introduced
1782 AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1786 AC_SUBST(CONFIG_LDFLAGS)
1789 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1790 dnl other error codes.
1791 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1792 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1793 gdb_cv_thread_db_h_has_td_notalloc,
1795 [#include <thread_db.h>],
1796 [int i = TD_NOTALLOC;],
1797 gdb_cv_thread_db_h_has_td_notalloc=yes,
1798 gdb_cv_thread_db_h_has_td_notalloc=no
1801 AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1802 gdb_cv_thread_db_h_has_td_version,
1804 [#include <thread_db.h>],
1805 [int i = TD_VERSION;],
1806 gdb_cv_thread_db_h_has_td_version=yes,
1807 gdb_cv_thread_db_h_has_td_version=no
1810 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1811 gdb_cv_thread_db_h_has_td_notls,
1813 [#include <thread_db.h>],
1814 [int i = TD_NOTLS;],
1815 gdb_cv_thread_db_h_has_td_notls=yes,
1816 gdb_cv_thread_db_h_has_td_notls=no
1820 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1821 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1822 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1824 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1825 AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1826 [Define if <thread_db.h> has the TD_VERSION error code.])
1828 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1829 AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1830 [Define if <thread_db.h> has the TD_NOTLS error code.])
1833 dnl Check if we can disable the virtual address space randomization.
1834 dnl The functionality of setarch -R.
1835 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1836 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1837 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
1838 # define ADDR_NO_RANDOMIZE 0x0040000
1840 /* Test the flag could be set and stays set. */
1841 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1842 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1844 AC_RUN_IFELSE([PERSONALITY_TEST],
1845 [have_personality=true],
1846 [have_personality=false],
1847 [AC_LINK_IFELSE([PERSONALITY_TEST],
1848 [have_personality=true],
1849 [have_personality=false])])
1850 if $have_personality
1852 AC_DEFINE([HAVE_PERSONALITY], 1,
1853 [Define if you support the personality syscall.])
1856 dnl Set the host's .gdbinit filename.
1865 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1867 dnl Handle optional features that can be enabled.
1869 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1870 # except that the argument to --with-sysroot is optional.
1871 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1872 if test "x$with_sysroot" = xyes; then
1873 with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1875 AC_ARG_WITH(sysroot,
1876 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1877 [search for usr/lib et al within DIR]),
1878 [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1879 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1880 [search for usr/lib et al within DIR])
1881 AC_SUBST(TARGET_SYSTEM_ROOT)
1882 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1884 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1885 [automatically load a system-wide gdbinit file],
1890 # In the Cygwin environment, we need some additional flags.
1891 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1892 [AC_EGREP_CPP(^lose$, [
1893 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1895 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1898 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1899 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1901 *go32* ) SER_HARDWIRE=ser-go32.o ;;
1902 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1903 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1905 AC_SUBST(SER_HARDWIRE)
1907 # libreadline needs libuser32.a in a cygwin environment
1909 if test x$gdb_cv_os_cygwin = xyes; then
1910 WIN32LIBS="-luser32"
1912 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1917 # The ser-tcp.c module requires sockets.
1920 AC_DEFINE(USE_WIN32API, 1,
1921 [Define if we should use the Windows API, instead of the
1922 POSIX API. On Windows, we use the Windows API when
1923 building for MinGW, but the POSIX API when building
1925 WIN32LIBS="$WIN32LIBS -lws2_32"
1930 # Add ELF support to GDB, but only if BFD includes ELF support.
1931 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1932 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1933 if test $gdb_cv_var_elf = yes; then
1934 CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
1935 AC_DEFINE(HAVE_ELF, 1,
1936 [Define if ELF support should be included.])
1937 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1938 if test "$plugins" = "yes"; then
1939 AC_SEARCH_LIBS(dlopen, dl)
1943 # Add macho support to GDB, but only if BFD includes it.
1944 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1945 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1946 if test $gdb_cv_var_macho = yes; then
1947 CONFIG_OBS="$CONFIG_OBS machoread.o"
1950 # Add any host-specific objects to GDB.
1951 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1953 # If building on ELF, look for lzma support for embedded compressed debug info.
1954 if test $gdb_cv_var_elf = yes; then
1956 AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1957 [], [with_lzma=auto])
1958 AC_MSG_CHECKING([whether to use lzma])
1959 AC_MSG_RESULT([$with_lzma])
1961 if test "${with_lzma}" != no; then
1962 AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1963 [lzma_index_iter iter;
1964 lzma_index_iter_init (&iter, 0);
1965 lzma_mf_is_supported (LZMA_MF_HC3);])
1966 if test "$HAVE_LIBLZMA" != yes; then
1967 if test "$with_lzma" = yes; then
1968 AC_MSG_ERROR([missing liblzma for --with-lzma])
1974 LIBGUI="../libgui/src/libgui.a"
1975 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1977 AC_SUBST(GUI_CFLAGS_X)
1981 AC_SUBST(WIN32LDAPP)
1984 *-*-cygwin* | *-*-mingw* )
1993 if test "${enable_gdbtk}" = "yes"; then
1995 # Gdbtk must have an absolute path to srcdir in order to run
1996 # properly when not installed.
2004 # If $no_tk is nonempty, then we can't do Tk, and there is no
2005 # point to doing Tcl.
2008 if test -z "${no_tcl}" -a -z "${no_tk}"; then
2011 # Check for in-tree tcl
2018 if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2022 # Find Tcl private headers
2023 if test x"${intree}" = xno; then
2024 CY_AC_TCL_PRIVATE_HEADERS
2025 TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2026 TCL_LIBRARY="${TCL_LIB_SPEC}"
2029 # If building tcl in the same src tree, private headers
2030 # are not needed, but we need to be sure to use the right
2032 TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2033 TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2034 TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2036 AC_SUBST(TCL_INCLUDE)
2037 AC_SUBST(TCL_LIBRARY)
2042 # Check for in-tree Tk
2044 if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2048 # Find Tk private headers
2049 if test x"${intree}" = xno; then
2050 CY_AC_TK_PRIVATE_HEADERS
2051 TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2052 TK_LIBRARY=${TK_LIB_SPEC}
2055 TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2056 TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2057 TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2059 AC_SUBST(TK_INCLUDE)
2060 AC_SUBST(TK_LIBRARY)
2062 AC_SUBST(TK_XINCLUDES)
2064 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2066 # Include some libraries that Tcl and Tk want.
2067 TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2068 # Yes, the ordering seems wrong here. But it isn't.
2069 # TK_LIBS is the list of libraries that need to be linked
2070 # after Tcl/Tk. Note that this isn't put into LIBS. If it
2071 # were in LIBS then any link tests after this point would
2072 # try to include things like `$(LIBGUI)', which wouldn't work.
2073 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2075 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2076 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2077 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2078 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2079 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2080 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2081 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2083 if test x$gdb_cv_os_cygwin = xyes; then
2084 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2085 WIN32LDAPP="-Wl,--subsystem,console"
2086 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2089 AC_CONFIG_SUBDIRS(gdbtk)
2097 AC_SUBST(GDBTK_CFLAGS)
2098 AC_SUBST(GDBTK_SRC_DIR)
2102 # Unlike the sim directory, whether a simulator is linked is controlled by
2103 # presence of a gdb_sim definition in the target configure.tgt entry.
2104 # This code just checks for a few cases where we'd like to ignore those
2105 # definitions, even when they're present in the '.mt' file. These cases
2106 # are when --disable-sim is specified, or if the simulator directory is
2107 # not part of the source tree.
2110 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2111 [echo "enable_sim = $enable_sim";
2112 echo "enableval = ${enableval}";
2113 case "${enableval}" in
2114 yes) ignore_sim=false ;;
2115 no) ignore_sim=true ;;
2116 *) ignore_sim=false ;;
2120 if test ! -d "${srcdir}/../sim"; then
2126 if test "${ignore_sim}" = "false"; then
2127 if test x"${gdb_sim}" != x ; then
2129 SIM_OBS="remote-sim.o"
2130 AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2132 # Some tdep code should only be compiled in when the ppc sim is
2133 # built. PR sim/13418.
2136 AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
2144 AC_SUBST(ENABLE_CFLAGS)
2145 AC_SUBST(PROFILE_CFLAGS)
2147 AC_SUBST(CONFIG_OBS)
2148 AC_SUBST(CONFIG_DEPS)
2149 AC_SUBST(CONFIG_SRCS)
2150 AC_SUBST(CONFIG_ALL)
2151 AC_SUBST(CONFIG_CLEAN)
2152 AC_SUBST(CONFIG_INSTALL)
2153 AC_SUBST(CONFIG_UNINSTALL)
2155 # List of host floatformats.
2156 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2157 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2158 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2160 # target_subdir is used by the testsuite to find the target libraries.
2162 if test "${host}" != "${target}"; then
2163 target_subdir="${target_alias}/"
2165 AC_SUBST(target_subdir)
2167 # Import nat definitions.
2168 nat_makefile_frag=/dev/null
2169 if test "${gdb_native}" = "yes"; then
2170 . ${srcdir}/configure.nat
2171 nativefile=$NAT_FILE
2175 AC_SUBST(NATDEPFILES)
2180 AC_SUBST(NAT_GENERATED_FILES)
2181 AC_SUBST(HAVE_NATIVE_GCORE_HOST)
2182 AC_SUBST_FILE(nat_makefile_frag)
2184 if test x"${gdb_osabi}" != x ; then
2185 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2186 [Define to the default OS ABI for this configuration.])
2189 # Enable multi-ice-gdb-server.
2190 AC_ARG_ENABLE(multi-ice,
2191 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2195 *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2197 if test "x$enable_multi_ice" = xyes; then
2198 AC_CONFIG_SUBDIRS(multi-ice)
2201 AC_ARG_ENABLE(gdbserver,
2202 AS_HELP_STRING([--enable-gdbserver],
2203 [automatically build gdbserver (yes/no/auto, default is auto)]),
2204 [case "${enableval}" in
2206 *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2207 esac],[enable_gdbserver=auto])
2209 # We only build gdbserver automatically in a native configuration, and
2210 # only if the user did not explicitly disable its build.
2211 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2212 AC_MSG_CHECKING(whether gdbserver is supported on this host)
2213 if test "x$build_gdbserver" = xyes; then
2215 AC_CONFIG_SUBDIRS(gdbserver)
2216 gdbserver_build_enabled=yes
2222 # If the user explicitly request the gdbserver to be built, verify that
2223 # we were in fact able to enable it.
2224 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2225 AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2228 # Check for babeltrace and babeltrace-ctf
2229 AC_ARG_WITH(babeltrace,
2230 AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2231 [], [with_babeltrace=auto])
2232 AC_MSG_CHECKING([whether to use babeltrace])
2233 AC_MSG_RESULT([$with_babeltrace])
2235 if test "x$with_babeltrace" = "xno"; then
2236 AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2238 # Append -Werror to CFLAGS so that configure can catch the warning
2239 # "assignment from incompatible pointer type", which is related to
2240 # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
2241 # in GDB, while babeltrace 1.0.3 is broken.
2242 # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2243 # safe to save and restore CFLAGS here.
2244 saved_CFLAGS=$CFLAGS
2245 CFLAGS="$CFLAGS -Werror"
2246 AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2247 [#include <babeltrace/babeltrace.h>
2248 #include <babeltrace/ctf/events.h>
2249 #include <babeltrace/ctf/iterator.h>],
2250 [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2251 struct bt_ctf_event *event = NULL;
2252 const struct bt_definition *scope;
2254 pos->type = BT_SEEK_BEGIN;
2255 bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2256 scope = bt_ctf_get_top_level_scope (event,
2257 BT_STREAM_EVENT_HEADER);
2258 bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2260 CFLAGS=$saved_CFLAGS
2262 if test "$HAVE_LIBBABELTRACE" != yes; then
2263 if test "$with_babeltrace" = yes; then
2264 AC_MSG_ERROR([babeltrace is missing or unusable])
2266 AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2271 # If nativefile (NAT_FILE) is not set in configure.nat, we link to an
2278 if test "${nativefile}" != ""; then
2279 case "${nativefile}" in
2280 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2281 * ) GDB_NM_FILE="${nativefile}"
2283 files="${files} ${GDB_NM_FILE}"
2284 links="${links} nm.h"
2285 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2287 AC_SUBST(GDB_NM_FILE)
2289 dnl Add dependency for xsltproc if building with maintainer-mode enabled.
2290 AC_PATH_PROGS(XSLTPROC, xsltproc, missing)
2291 if test "x$USE_MAINTAINER_MODE" = xyes; then
2292 if test "${XSLTPROC}" = missing; then
2293 AC_ERROR(unable to find xsltproc. maintainer-mode requires xsltproc.)
2298 AC_LINK_FILES($files, $links)
2300 dnl Check for exe extension set on certain hosts (e.g. Win32)
2303 dnl Detect the character set used by this host.
2304 dnl At the moment, we just assume it's UTF-8.
2305 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2306 [Define to be a string naming the default host character set.])
2308 if $development; then
2309 AC_DEFINE(GDB_SELF_TEST, 1,
2310 [Define if self-testing features should be enabled])
2311 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_UNITTESTS_OBS)"
2312 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_UNITTESTS_SRCS)"
2315 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2316 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2317 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2318 AC_CONFIG_FILES([Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile],
2320 case x$CONFIG_HEADERS in
2321 xconfig.h:config.in)