1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright (C) 1995-2014 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 . $srcdir/../bfd/development.sh
30 AC_USE_SYSTEM_EXTENSIONS
39 # Dependency checking.
41 ZW_PROG_COMPILER_DEPENDENCIES([CC])
43 # Check for the 'make' the user wants to use.
44 AC_CHECK_PROGS(MAKE, make)
46 case "`$MAKE --version 2>&1 | sed 1q`" in
51 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
54 # Configure gnulib. We need to build gnulib under some other
55 # directory not "gnulib", to avoid the problem of both GDB and
56 # GDBserver wanting to build it in the same directory, when building
58 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"])
60 dnl List of object files and targets accumulated by configure.
72 dnl Set up for gettext.
73 ZW_GNU_GETTEXT_SISTER_DIR
75 localedir='${datadir}/locale'
78 if test x"$USE_NLS" = xyes; then
79 CONFIG_ALL="$CONFIG_ALL all-po"
80 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
81 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
82 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
85 GNULIB=build-gnulib/import
87 # For Makefile dependencies.
89 if test x"$STDINT_H" != x; then
90 GNULIB_STDINT_H=$GNULIB/$STDINT_H
92 AC_SUBST(GNULIB_STDINT_H)
95 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
98 # We never need to detect it in this sub-configure.
99 # But preserve it for config.status --recheck.
101 [Parent configure detects if it is of sufficient version.])
102 AC_ARG_VAR(MAKEINFOFLAGS,
103 [Parameters for MAKEINFO.])
105 MAKEINFO_EXTRA_FLAGS=""
106 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
107 [echo '@clicksequence{a @click{} b}' >conftest.texinfo
108 if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
109 gdb_cv_have_makeinfo_click=yes
111 gdb_cv_have_makeinfo_click=no
113 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
114 MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
116 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
118 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
119 [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
122 # We can't pass paths as command line arguments.
123 # Mingw32 tries to be clever and will convert the paths for us.
124 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
125 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
126 # This breaks GDB's relocatable path conversions since paths passed in
127 # config.h would not get so translated, the path prefixes no longer match.
128 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
130 # GDB's datadir relocation
132 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
133 [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
136 AC_ARG_WITH(relocated-sources,
137 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
138 [reloc_srcdir="${withval}"
139 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
140 [Relocated directory for source files. ])
143 AC_MSG_CHECKING([for default auto-load directory])
144 AC_ARG_WITH(auto-load-dir,
145 AS_HELP_STRING([--with-auto-load-dir=PATH],
146 [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
147 [with_auto_load_dir='$debugdir:$datadir/auto-load'])
148 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
149 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
150 [Directories from which to load auto-loaded scripts.])
151 AC_MSG_RESULT([$with_auto_load_dir])
153 AC_MSG_CHECKING([for default auto-load safe-path])
154 AC_ARG_WITH(auto-load-safe-path,
155 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
156 [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
157 AS_HELP_STRING([--without-auto-load-safe-path],
158 [do not restrict auto-loaded files locations]),
159 [if test "$with_auto_load_safe_path" = "no"; then
160 with_auto_load_safe_path="/"
162 [with_auto_load_safe_path="$with_auto_load_dir"])
163 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
164 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
165 [Directories safe to hold auto-loaded files.])
166 AC_MSG_RESULT([$with_auto_load_safe_path])
168 AC_CONFIG_SUBDIRS(testsuite)
170 # Check whether to support alternative target configurations
171 AC_ARG_ENABLE(targets,
172 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
173 [case "${enableval}" in
174 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
176 no) enable_targets= ;;
177 *) enable_targets=$enableval ;;
180 # Check whether to enable 64-bit support on 32-bit hosts
181 AC_ARG_ENABLE(64-bit-bfd,
182 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
183 [case "${enableval}" in
186 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
187 esac],[want64=false])dnl
189 # Provide defaults for some variables set by the per-host and per-target
191 gdb_host_obs=posix-hdep.o
193 if test "${target}" = "${host}"; then
199 . $srcdir/configure.host
201 # Accumulate some settings from configure.tgt over all enabled targets
205 HAVE_NATIVE_GCORE_TARGET=
207 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
209 if test "$targ_alias" = "all"; then
212 # Canonicalize the secondary target names.
213 result=`$ac_config_sub $targ_alias 2>/dev/null`
214 if test -n "$result"; then
220 . ${srcdir}/configure.tgt
222 AS_IF([test -z "${gdb_target_obs}"],
223 [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
225 # Target-specific object files
226 for i in ${gdb_target_obs}; do
227 case " $TARGET_OBS " in
230 TARGET_OBS="$TARGET_OBS ${i}"
235 # Check whether this target needs 64-bit CORE_ADDR
236 if test x${want64} = xfalse; then
237 . ${srcdir}/../bfd/config.bfd
240 # Check whether this target is native and supports gcore.
241 if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
242 && $gdb_have_gcore; then
243 HAVE_NATIVE_GCORE_TARGET=1
248 if test x${all_targets} = xtrue; then
250 # We want all 64-bit targets if we either:
251 # - run on a 64-bit host or
252 # - already require 64-bit support for some other target or
253 # - the --enable-64-bit-bfd option was supplied
254 # Otherwise we only support all 32-bit targets.
256 # NOTE: This test must be in sync with the corresponding
259 if test x${want64} = xfalse; then
260 AC_CHECK_SIZEOF(long)
261 if test "x${ac_cv_sizeof_long}" = "x8"; then
265 if test x${want64} = xtrue; then
266 TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
268 TARGET_OBS='$(ALL_TARGET_OBS)'
273 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
275 # For other settings, only the main target counts.
279 targ=$target; . ${srcdir}/configure.tgt
281 # Fetch the default architecture and default target vector from BFD.
282 targ=$target; . $srcdir/../bfd/config.bfd
284 # We only want the first architecture, so strip off the others if
285 # there is more than one.
286 targ_archs=`echo $targ_archs | sed 's/ .*//'`
288 if test "x$targ_archs" != x; then
289 AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
290 [Define to BFD's default architecture. ])
292 if test "x$targ_defvec" != x; then
293 AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
294 [Define to BFD's default target vector. ])
297 # The CLI cannot be disabled yet, but may be in the future.
300 AC_ARG_ENABLE(gdbcli,
301 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
306 AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
308 AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
311 if test x"$enable_gdbcli" = xyes; then
312 if test -d $srcdir/cli; then
313 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
314 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
315 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
316 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
322 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
327 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
330 if test x"$enable_gdbmi" = xyes; then
331 if test -d $srcdir/mi; then
332 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
333 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
334 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
335 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
341 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
346 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
347 esac],enable_tui=auto)
351 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
356 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
358 [if test -d $srcdir/gdbtk; then
363 # We unconditionally disable gdbtk tests on selected platforms.
366 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
370 # Libunwind support for ia64.
372 AC_ARG_WITH(libunwind-ia64,
373 AS_HELP_STRING([--with-libunwind-ia64],
374 [use libunwind frame unwinding for ia64 targets]),,
375 [with_libunwind_ia64=auto])
377 # Backward compatibility option.
378 if test "${with_libunwind+set}" = set; then
379 if test x"$with_libunwind_ia64" != xauto; then
381 [option --with-libunwind is deprecated, use --with-libunwind-ia64])
383 AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
384 with_libunwind_ia64="$with_libunwind"
387 case "$with_libunwind_ia64" in
391 AC_CHECK_HEADERS(libunwind-ia64.h)
392 with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
396 [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
400 if test x"$with_libunwind_ia64" = xyes; then
401 AC_CHECK_HEADERS(libunwind-ia64.h)
402 if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
403 AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
405 CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
406 CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
407 CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
411 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
414 if test "$opt_curses" = "yes"; then
419 AC_ARG_ENABLE(profiling,
420 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
425 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
427 [enable_profiling=no])
429 AC_CHECK_FUNCS(monstartup _mcleanup)
430 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
435 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
436 if test $ac_cv_var__etext = yes; then
437 AC_DEFINE(HAVE__ETEXT, 1,
438 [Define to 1 if your system has the _etext variable. ])
440 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
445 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
446 if test $ac_cv_var_etext = yes; then
447 AC_DEFINE(HAVE_ETEXT, 1,
448 [Define to 1 if your system has the etext variable. ])
450 if test "$enable_profiling" = yes ; then
451 if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
452 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
456 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
458 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
459 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
460 ac_cv_cc_supports_pg=no)])
462 if test $ac_cv_cc_supports_pg = no; then
463 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
469 ACX_PKGVERSION([GDB])
470 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
471 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
472 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
474 # --------------------- #
475 # Checks for programs. #
476 # --------------------- #
484 AC_CHECK_TOOL(AR, ar)
485 AC_CHECK_TOOL(DLLTOOL, dlltool)
486 AC_CHECK_TOOL(WINDRES, windres)
490 # Needed for GNU Hurd hosts.
491 AC_CHECK_TOOL(MIG, mig)
492 if test x"$MIG" = x; then
493 AC_MSG_ERROR([MIG not found but required for $host hosts])
498 # ---------------------- #
499 # Checks for libraries. #
500 # ---------------------- #
502 # We might need to link with -lm; most simulators need it.
503 AC_CHECK_LIB(m, main)
505 # We need to link with -lw to get `wctype' on Solaris before Solaris
506 # 2.6. Solaris 2.6 and beyond have this function in libc, and have a
507 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
508 # is known to have this problem). Therefore we avoid libw if we can.
509 AC_CHECK_FUNC(wctype, [],
510 [AC_CHECK_LIB(w, wctype)])
512 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
513 AC_SEARCH_LIBS(gethostbyname, nsl)
515 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
516 AC_SEARCH_LIBS(socketpair, socket)
518 # Link in zlib if we can. This allows us to read compressed debug sections.
521 # On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
522 AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])
526 # GDB may fork/exec the iconv program to get the list of supported character
527 # sets. Allow the user to specify where to find it.
528 # There are several factors affecting the choice of option name:
529 # - There is already --with-libiconv-prefix but we can't use it, it specifies
530 # the build-time location of libiconv files.
531 # - The program we need to find is iconv, which comes with glibc. The user
532 # doesn't necessarily have libiconv installed. Therefore naming this
533 # --with-libiconv-foo feels wrong.
534 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
535 # defined to work on directories not files (though it really doesn't know
537 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
538 # with --with-libiconv-prefix.
539 # Putting these together is why the option name is --with-iconv-bin.
541 AC_ARG_WITH(iconv-bin,
542 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
543 [iconv_bin="${withval}"
544 AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
545 [Path of directory of iconv program.])
546 GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
549 # For the TUI, we need enhanced curses functionality.
550 if test x"$enable_tui" != xno; then
555 if test x"$prefer_curses" = xyes; then
556 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
557 # curses library because the latter might not provide all the
558 # functionality we need. However, this leads to problems on systems
559 # where the linker searches /usr/local/lib, but the compiler doesn't
560 # search /usr/local/include, if ncurses is installed in /usr/local. A
561 # default installation of ncurses on alpha*-dec-osf* will lead to such
563 AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
565 if test "$ac_cv_search_waddstr" != no; then
570 # Check whether we should enable the TUI, but only do so if we really
572 if test x"$enable_tui" != xno; then
573 if test -d $srcdir/tui; then
574 if test "$curses_found" != no; then
575 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
576 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
577 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
578 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
580 if test x"$enable_tui" = xyes; then
581 AC_MSG_ERROR([no enhanced curses library found; disable TUI])
583 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
589 # Since GDB uses Readline, we need termcap functionality. In many
590 # cases this will be provided by the curses library, but some systems
591 # have a seperate termcap library, or no curses library at all.
595 if test -d $srcdir/libtermcap; then
596 LIBS="../libtermcap/libtermcap.a $LIBS"
597 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
600 ac_cv_search_tgetent="none required"
603 ac_cv_search_tgetent="none required"
604 CONFIG_OBS="$CONFIG_OBS windows-termcap.o"
608 # These are the libraries checked by Readline.
609 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
611 if test "$ac_cv_search_tgetent" = no; then
612 AC_MSG_ERROR([no termcap library found])
615 AC_ARG_WITH([system-readline],
616 [AS_HELP_STRING([--with-system-readline],
617 [use installed readline library])])
619 if test "$with_system_readline" = yes; then
623 READLINE_TEXI_INCFLAG=
625 READLINE='$(READLINE_DIR)/libreadline.a'
626 READLINE_DEPS='$(READLINE)'
627 READLINE_CFLAGS='-I$(READLINE_SRC)/..'
628 READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
631 AC_SUBST(READLINE_DEPS)
632 AC_SUBST(READLINE_CFLAGS)
633 AC_SUBST(READLINE_TEXI_INCFLAG)
635 # Generate jit-reader.h
637 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
640 AC_CHECK_SIZEOF(unsigned long long)
641 AC_CHECK_SIZEOF(unsigned long)
642 AC_CHECK_SIZEOF(unsigned __int128)
644 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
645 TARGET_PTR="unsigned long"
646 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
647 TARGET_PTR="unsigned long long"
648 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
649 TARGET_PTR="unsigned __int128"
651 TARGET_PTR="unsigned long"
655 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
657 AC_SEARCH_LIBS(dlopen, dl)
659 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
660 [directory to load the JIT readers from],
664 AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
665 [], [with_expat=auto])
666 AC_MSG_CHECKING([whether to use expat])
667 AC_MSG_RESULT([$with_expat])
669 if test "${with_expat}" = no; then
670 AC_MSG_WARN([expat support disabled; some features may be unavailable.])
673 AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
674 [XML_Parser p = XML_ParserCreate (0);])
675 if test "$HAVE_LIBEXPAT" != yes; then
676 if test "$with_expat" = yes; then
677 AC_MSG_ERROR([expat is missing or unusable])
679 AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
683 LIBS="$LIBS $LIBEXPAT"
684 AC_CHECK_FUNCS(XML_StopParser)
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 $new_CPPFLAGS"
710 LIBS="$LIBS $new_LIBS"
711 found_usable_python=no
712 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
713 [[Py_Initialize ();]]),
714 [have_libpython_var=${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, 2.6, 2.5, and then 2.4 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, 2.6, 2.5, and then 2.4 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 ${python_includes}, "${python_libs} -lpython2.7")
902 if test "${have_libpython}" = no; then
903 AC_TRY_LIBPYTHON(python2.6, have_libpython,
904 ${python_includes}, "${python_libs} -lpython2.6")
906 if test ${have_libpython} = no; then
907 AC_TRY_LIBPYTHON(python2.5, have_libpython,
908 ${python_includes}, "${python_libs} -lpython2.5")
910 if test ${have_libpython} = no; then
911 AC_TRY_LIBPYTHON(python2.4, have_libpython,
912 ${python_includes}, "${python_libs} -lpython2.4")
915 if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
916 AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
917 elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
918 AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
919 elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
920 AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
921 elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
922 AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
925 if test "${have_libpython}" = no; then
926 case "${with_python}" in
928 AC_MSG_ERROR([python is missing or unusable])
931 AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
934 AC_MSG_ERROR([no usable python found at ${with_python}])
938 if test -n "${python_prefix}"; then
939 AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
940 [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
941 GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
946 if test "${have_libpython}" != no; then
947 AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
948 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
949 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
950 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
951 CONFIG_INSTALL="$CONFIG_INSTALL install-python"
952 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
954 # Flags needed to compile Python code (taken from python-config --cflags).
955 # We cannot call python-config directly because it will output whatever was
956 # used when compiling the Python interpreter itself, including flags which
957 # would make the python-related objects be compiled differently from the
958 # rest of GDB (e.g., -O2 and -fPIC).
959 if test "${GCC}" = yes; then
960 tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
963 if test "x${tentative_python_cflags}" != x; then
964 AC_MSG_CHECKING(compiler flags for python code)
965 for flag in ${tentative_python_cflags}; do
966 # Check that the compiler accepts it
967 saved_CFLAGS="$CFLAGS"
968 CFLAGS="$CFLAGS $flag"
969 AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
970 CFLAGS="$saved_CFLAGS"
972 AC_MSG_RESULT(${PYTHON_CFLAGS})
975 # On x64 Windows, Python's include headers, and pyconfig.h in
976 # particular, rely on MS_WIN64 macro to detect that it's a 64bit
977 # version of Windows. Unfortunately, MS_WIN64 is only defined if
978 # _MSC_VER, a Microsoft-specific macro, is defined. So, when
979 # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
980 # The issue was reported to the Python community, but still isn't
981 # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
985 if test "${GCC}" = yes; then
986 CPPFLAGS="$CPPFLAGS -DMS_WIN64"
991 # Note that "python -m threading" cannot be used to check for
992 # threading support due to a bug in Python 2.7.3
993 # (http://bugs.python.org/issue15567).
994 AC_MSG_CHECKING(whether python supports threads)
995 saved_CPPFLAGS="${CPPFLAGS}"
996 CPPFLAGS="${PYTHON_CPPFLAGS}"
997 # Note that the test is reversed so that python_has_threads=yes on
998 # unexpected failures.
999 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1004 ]]), [python_has_threads=no], [python_has_threads=yes])
1005 AC_MSG_RESULT(${python_has_threads})
1006 CPPFLAGS="${saved_CPPFLAGS}"
1008 # Even if Python support is not compiled in, we need to have this file
1009 # included so that the "python" command, et.al., still exists.
1010 CONFIG_OBS="$CONFIG_OBS python.o"
1011 CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1013 AC_SUBST(PYTHON_CFLAGS)
1014 AC_SUBST(PYTHON_CPPFLAGS)
1015 AC_SUBST(PYTHON_LIBS)
1016 AM_CONDITIONAL(HAVE_PYTHON, test "${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=$new_LIBS],
1075 [found_usable_guile=no])
1076 CPPFLAGS=$save_CPPFLAGS
1078 if test "${found_usable_guile}" = no; then
1079 if test "${flag_errors}" = yes; then
1080 AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1084 AC_MSG_RESULT([${found_usable_guile}])
1087 dnl There are several different values for --with-guile:
1089 dnl no - Don't include guile support.
1090 dnl yes - Include guile support, error if it's missing.
1091 dnl The pkg-config program must be in $PATH.
1092 dnl auto - Same as "yes", but if guile is missing from the system,
1093 dnl fall back to "no".
1094 dnl guile-version [guile-version-choice-2 ...] -
1095 dnl A space-separated list of guile package versions to try.
1096 dnl These are passed to pkg-config as-is.
1097 dnl E.g., guile-2.0 or guile-2.2-uninstalled
1098 dnl This requires making sure PKG_CONFIG_PATH is set appropriately.
1099 dnl /path/to/pkg-config -
1100 dnl Use this pkg-config program.
1101 dnl NOTE: This needn't be the "real" pkg-config program.
1102 dnl It could be a shell script. It is invoked as:
1103 dnl pkg-config --exists $version
1104 dnl pkg-config --cflags $version
1105 dnl pkg-config --libs $version
1106 dnl pkg-config --variable guild $version
1107 dnl The script will be called with $version having each value in
1108 dnl $try_guile_versions until --exists indicates success.
1111 AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1112 [], [with_guile=auto])
1113 AC_MSG_CHECKING([whether to use guile])
1114 AC_MSG_RESULT([$with_guile])
1116 dnl We check guile with pkg-config.
1117 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1119 try_guile_versions="guile-2.2 guile-2.0"
1121 case "${with_guile}" in
1123 AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1126 if test "${pkg_config_prog_path}" = "missing"; then
1127 AC_MSG_WARN([pkg-config not found, guile support disabled])
1129 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1133 if test "${pkg_config_prog_path}" = "missing"; then
1134 AC_MSG_ERROR([pkg-config not found])
1136 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1138 [[\\/]]* | ?:[[\\/]]*)
1139 if test -x "${with_guile}"; then
1140 AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1142 AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1146 # Disallow --with=guile="" and --with-guile=foo/bar.
1147 AC_MSG_ERROR([invalid value for --with-guile])
1150 # A space separate list of guile versions to try, in order.
1151 if test "${pkg_config_prog_path}" = "missing"; then
1152 AC_MSG_ERROR([pkg-config not found])
1154 AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1158 if test "${have_libguile}" != no; then
1159 dnl Get the name of the 'guild' program.
1160 case "${with_guile}" in
1161 [[\\/]]* | ?:[[\\/]]*)
1162 GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1165 GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1169 dnl Make sure guild can handle this host.
1170 GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1171 dnl If not, disable guile support.
1172 if test "$ac_cv_guild_ok" = no; then
1174 AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1178 if test "${have_libguile}" != no; then
1179 AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1180 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1181 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1182 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1183 CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1184 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1186 dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1188 save_CPPFLAGS="$CPPFLAGS"
1190 CPPFLAGS="$GUILE_CPPFLAGS"
1191 AC_CHECK_FUNCS([scm_new_smob])
1193 CPPFLAGS="$save_CPPFLAGS"
1195 # Even if Guile support is not compiled in, we need to have these files
1197 CONFIG_OBS="$CONFIG_OBS guile.o"
1198 CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1200 AC_SUBST(GUILE_CPPFLAGS)
1201 AC_SUBST(GUILE_LIBS)
1202 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1204 # --------------------- #
1205 # Check for libmcheck. #
1206 # --------------------- #
1208 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1209 # but turn it off if Python is enabled with threads, since -lmcheck is
1210 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1212 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1213 && $development; then
1214 libmcheck_default=yes
1216 libmcheck_default=no
1218 GDB_AC_LIBMCHECK(${libmcheck_default})
1220 if test "$ENABLE_LIBMCHECK" = "yes" \
1221 -a "${have_libpython}" != "no" \
1222 -a "${python_has_threads}" = "yes" ; then
1223 AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1226 # ------------------------- #
1227 # Checks for header files. #
1228 # ------------------------- #
1231 # elf_hp.h is for HP/UX 64-bit shared library support.
1232 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1235 sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1236 sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1237 sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1238 termios.h termio.h \
1241 AC_CHECK_HEADERS(sys/proc.h, [], [],
1242 [#if HAVE_SYS_PARAM_H
1243 # include <sys/param.h>
1246 AC_CHECK_HEADERS(sys/user.h, [], [],
1247 [#if HAVE_SYS_PARAM_H
1248 # include <sys/param.h>
1252 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
1253 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
1254 # think that we don't have <curses.h> if we're using GCC.
1257 if test "$GCC" = yes; then
1258 AC_DEFINE(_MSE_INT_H, 1,
1259 [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
1260 Solaris 2.[789] when using GCC. ])
1263 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
1264 AC_CHECK_HEADERS(term.h, [], [],
1266 # include <curses.h>
1270 # ------------------------- #
1271 # Checks for declarations. #
1272 # ------------------------- #
1274 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1277 # ----------------------- #
1278 # Checks for structures. #
1279 # ----------------------- #
1281 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1283 # ------------------ #
1284 # Checks for types. #
1285 # ------------------ #
1288 AC_CHECK_TYPES(socklen_t, [], [],
1289 [#include <sys/types.h>
1290 #include <sys/socket.h>
1293 # ------------------------------------- #
1294 # Checks for compiler characteristics. #
1295 # ------------------------------------- #
1301 # ------------------------------ #
1302 # Checks for library functions. #
1303 # ------------------------------ #
1308 AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid getgid \
1309 pipe poll pread pread64 pwrite readlink resize_term \
1310 sbrk setpgid setpgrp setsid \
1311 sigaction sigprocmask sigsetmask socketpair \
1312 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1313 setrlimit getrlimit posix_madvise waitpid lstat \
1314 ptrace64 sigaltstack])
1318 # Check the return and argument types of ptrace. No canned test for
1319 # this, so roll our own.
1320 gdb_ptrace_headers='
1321 #include <sys/types.h>
1322 #if HAVE_SYS_PTRACE_H
1323 # include <sys/ptrace.h>
1326 # include <unistd.h>
1329 # There is no point in checking if we don't have a prototype.
1330 AC_CHECK_DECLS(ptrace, [], [
1331 : ${gdb_cv_func_ptrace_ret='int'}
1332 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1333 ], $gdb_ptrace_headers)
1334 # Check return type. Varargs (used on GNU/Linux) conflict with the
1335 # empty argument list, so check for that explicitly.
1336 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
1337 AC_TRY_COMPILE($gdb_ptrace_headers,
1338 [extern long ptrace (enum __ptrace_request, ...);],
1339 gdb_cv_func_ptrace_ret='long',
1340 AC_TRY_COMPILE($gdb_ptrace_headers,
1341 [extern int ptrace ();],
1342 gdb_cv_func_ptrace_ret='int',
1343 gdb_cv_func_ptrace_ret='long')))
1344 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
1345 [Define as the return type of ptrace.])
1346 # Check argument types.
1347 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
1348 AC_TRY_COMPILE($gdb_ptrace_headers,
1349 [extern long ptrace (enum __ptrace_request, ...);],
1350 [gdb_cv_func_ptrace_args='int,int,long,long'],[
1351 for gdb_arg1 in 'int' 'long'; do
1352 for gdb_arg2 in 'pid_t' 'int' 'long'; do
1353 for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
1354 for gdb_arg4 in 'int' 'long' 'void *'; do
1355 AC_TRY_COMPILE($gdb_ptrace_headers, [
1356 extern $gdb_cv_func_ptrace_ret
1357 ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
1358 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
1360 for gdb_arg5 in 'int *' 'int' 'long'; do
1361 AC_TRY_COMPILE($gdb_ptrace_headers, [
1362 extern $gdb_cv_func_ptrace_ret
1363 ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
1365 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
1372 # Provide a safe default value.
1373 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1375 ac_save_IFS=$IFS; IFS=','
1376 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
1379 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
1380 [Define to the type of arg 3 for ptrace.])
1381 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG4, $[4],
1382 [Define to the type of arg 4 for ptrace.])
1383 if test -n "$[5]"; then
1384 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
1385 [Define to the type of arg 5 for ptrace.])
1388 dnl AC_FUNC_SETPGRP does not work when cross compiling
1389 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1390 if test "$cross_compiling" = no; then
1393 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1397 if (setpgrp(1,1) == -1)
1401 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1402 if test $ac_cv_func_setpgrp_void = yes; then
1403 AC_DEFINE(SETPGRP_VOID, 1)
1407 # Assume we'll default to using the included libiberty regex.
1408 gdb_use_included_regex=yes
1410 # However, if the system regex is GNU regex, then default to *not*
1411 # using the included regex.
1414 [gdb_cv_have_gnu_regex],
1416 [#include <gnu-versions.h>],
1417 [#define REGEX_INTERFACE_VERSION 1
1418 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1419 # error "Version mismatch"
1421 gdb_cv_have_gnu_regex=yes,
1422 gdb_cv_have_gnu_regex=no)])
1423 if test $gdb_cv_have_gnu_regex = yes; then
1424 gdb_use_included_regex=no
1427 AC_ARG_WITH(included-regex,
1428 AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1429 gdb_with_regex=$withval,
1430 gdb_with_regex=$gdb_use_included_regex)
1431 if test "$gdb_with_regex" = yes; then
1432 AC_DEFINE(USE_INCLUDED_REGEX, 1,
1433 [Define to 1 if the regex included in libiberty should be used.])
1436 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1437 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1438 [#include <sys/param.h>
1439 #include <sys/proc.h>
1442 # See if <sys/lwp.h> defines `struct lwp`.
1443 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1444 [AC_TRY_COMPILE([#include <sys/param.h>
1445 #include <sys/lwp.h>], [struct lwp l;],
1446 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1447 if test $gdb_cv_struct_lwp = yes; then
1448 AC_DEFINE(HAVE_STRUCT_LWP, 1,
1449 [Define to 1 if your system has struct lwp.])
1452 # See if <machine/reg.h> degines `struct reg'.
1453 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1454 [AC_TRY_COMPILE([#include <sys/types.h>
1455 #include <machine/reg.h>], [struct reg r;],
1456 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1457 if test $gdb_cv_struct_reg = yes; then
1458 AC_DEFINE(HAVE_STRUCT_REG, 1,
1459 [Define to 1 if your system has struct reg in <machine/reg.h>.])
1462 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1463 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1464 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1465 [#include <machine/reg.h>])
1467 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1468 # Older amd64 Linux's don't have the fs_base and gs_base members of
1469 # `struct user_regs_struct'.
1470 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1471 [], [], [#include <sys/user.h>])
1473 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1474 AC_MSG_CHECKING(for PTRACE_GETREGS)
1475 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1476 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1478 [gdb_cv_have_ptrace_getregs=yes],
1479 [gdb_cv_have_ptrace_getregs=no])])
1480 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1481 if test $gdb_cv_have_ptrace_getregs = yes; then
1482 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1483 [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1486 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1487 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1488 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1489 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1490 [PTRACE_GETFPXREGS;],
1491 [gdb_cv_have_ptrace_getfpxregs=yes],
1492 [gdb_cv_have_ptrace_getfpxregs=no])])
1493 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1494 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1495 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1496 [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1499 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1500 AC_MSG_CHECKING(for PT_GETDBREGS)
1501 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1502 [AC_TRY_COMPILE([#include <sys/types.h>
1503 #include <sys/ptrace.h>],
1505 [gdb_cv_have_pt_getdbregs=yes],
1506 [gdb_cv_have_pt_getdbregs=no])])
1507 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1508 if test $gdb_cv_have_pt_getdbregs = yes; then
1509 AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1510 [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1513 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1514 AC_MSG_CHECKING(for PT_GETXMMREGS)
1515 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1516 [AC_TRY_COMPILE([#include <sys/types.h>
1517 #include <sys/ptrace.h>],
1519 [gdb_cv_have_pt_getxmmregs=yes],
1520 [gdb_cv_have_pt_getxmmregs=no])])
1521 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1522 if test $gdb_cv_have_pt_getxmmregs = yes; then
1523 AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1524 [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1527 # Detect which type of /proc is in use, such as for Solaris.
1529 if test "${target}" = "${host}"; then
1531 *-*-sysv4.2* | *-*-sysv5* )
1532 AC_DEFINE(NEW_PROC_API, 1,
1533 [Define if you want to use new multi-fd /proc interface.])
1535 *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1536 AC_DEFINE(NEW_PROC_API, 1,
1537 [Define if you want to use new multi-fd /proc interface.])
1540 # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1541 AC_DEFINE([_KMEMUSER], 1,
1542 [Define to 1 so <sys/proc.h> gets a definition of anon_hdl. Works
1543 around a <sys/proc.h> problem on IRIX 5.])
1548 if test "$ac_cv_header_sys_procfs_h" = yes; then
1549 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1550 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1551 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1552 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1553 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1554 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1555 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1556 BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1557 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1558 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1559 BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1562 dnl Check for broken prfpregset_t type
1564 dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1565 dnl prfpregset_t type (it's a typedef for the pointer to a struct
1566 dnl instead of the struct itself). We detect this here, and work
1567 dnl around it in gdb_proc_service.h.
1569 if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1570 AC_MSG_CHECKING(whether prfpregset_t type is broken)
1571 AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1572 [AC_TRY_RUN([#include <sys/procfs.h>
1575 if (sizeof (prfpregset_t) == sizeof (void *))
1579 gdb_cv_prfpregset_t_broken=no,
1580 gdb_cv_prfpregset_t_broken=yes,
1581 gdb_cv_prfpregset_t_broken=yes)])
1582 AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1583 if test $gdb_cv_prfpregset_t_broken = yes; then
1584 AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1585 [Define if the prfpregset_t type is broken.])
1590 # Check if the compiler supports the `long long' type.
1592 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1593 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1594 [[extern long long foo;]],
1595 [[switch (foo & 2) { case 0: return 1; }]])],
1596 gdb_cv_c_long_long=yes,
1597 gdb_cv_c_long_long=no)])
1598 if test $gdb_cv_c_long_long != yes; then
1599 # libdecnumber requires long long.
1600 AC_MSG_ERROR([Compiler must support long long for GDB.])
1603 # Check if the compiler and runtime support printing long longs.
1605 AC_CACHE_CHECK([for long long support in printf],
1606 gdb_cv_printf_has_long_long,
1607 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1610 l = (l << 16) + 0x0123;
1611 l = (l << 16) + 0x4567;
1612 l = (l << 16) + 0x89ab;
1613 l = (l << 16) + 0xcdef;
1614 sprintf (buf, "0x%016llx", l);
1615 return (strcmp ("0x0123456789abcdef", buf));]])],
1616 gdb_cv_printf_has_long_long=yes,
1617 gdb_cv_printf_has_long_long=no,
1618 gdb_cv_printf_has_long_long=no)])
1619 if test $gdb_cv_printf_has_long_long = yes; then
1620 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1621 [Define to 1 if the "%ll" format works to print long longs.])
1624 # Check if the compiler and runtime support printing decfloats.
1626 AC_CACHE_CHECK([for decfloat support in printf],
1627 gdb_cv_printf_has_decfloat,
1628 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1630 _Decimal32 d32 = 1.2345df;
1631 _Decimal64 d64 = 1.2345dd;
1632 _Decimal128 d128 = 1.2345dl;
1633 sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1634 return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1635 gdb_cv_printf_has_decfloat=yes,
1636 gdb_cv_printf_has_decfloat=no,
1637 gdb_cv_printf_has_decfloat=no)])
1638 if test $gdb_cv_printf_has_decfloat = yes; then
1639 AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1640 [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1643 # Check if the compiler supports the `long double' type. We can't use
1644 # AC_C_LONG_DOUBLE because that one does additional checks on the
1645 # constants defined in <float.h> that fail on some systems,
1646 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1648 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1649 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1650 gdb_cv_c_long_double=yes,
1651 gdb_cv_c_long_double=no)])
1652 if test $gdb_cv_c_long_double = yes; then
1653 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1654 [Define to 1 if the compiler supports long double.])
1657 # Check if the compiler and runtime support printing long doubles.
1659 AC_CACHE_CHECK([for long double support in printf],
1660 gdb_cv_printf_has_long_double,
1661 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1663 long double f = 3.141592653;
1664 sprintf (buf, "%Lg", f);
1665 return (strncmp ("3.14159", buf, 7));]])],
1666 gdb_cv_printf_has_long_double=yes,
1667 gdb_cv_printf_has_long_double=no,
1668 gdb_cv_printf_has_long_double=no)])
1669 if test $gdb_cv_printf_has_long_double = yes; then
1670 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1671 [Define to 1 if the "%Lg" format works to print long doubles.])
1674 # Check if the compiler and runtime support scanning long doubles.
1676 AC_CACHE_CHECK([for long double support in scanf],
1677 gdb_cv_scanf_has_long_double,
1678 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1679 [[#include <stdio.h>]],
1680 [[char *buf = "3.141592653";
1682 sscanf (buf, "%Lg", &f);
1683 return !(f > 3.14159 && f < 3.14160);]])],
1684 gdb_cv_scanf_has_long_double=yes,
1685 gdb_cv_scanf_has_long_double=no,
1686 gdb_cv_scanf_has_long_double=no)])
1687 if test $gdb_cv_scanf_has_long_double = yes; then
1688 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1689 [Define to 1 if the "%Lg" format works to scan long doubles.])
1694 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1695 SAVE_LDFLAGS=$LDFLAGS
1698 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1699 *) gdb_cv_bigtoc=-bbigtoc ;;
1702 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1703 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1704 LDFLAGS="${SAVE_LDFLAGS}"
1706 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1710 AC_MSG_CHECKING(for the dynamic export flag)
1712 if test "${gdb_native}" = yes; then
1713 # The dynamically loaded libthread_db needs access to symbols in the gdb
1714 # executable. Older GNU ld supports --export-dynamic but --dynamic-list
1715 # may not be supported there.
1716 old_LDFLAGS="$LDFLAGS"
1717 # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1718 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1719 LDFLAGS="$LDFLAGS $RDYNAMIC"
1720 if test "${have_libpython}" = no; then
1721 AC_TRY_LINK([], [], [dynamic_list=true])
1723 # Workaround http://bugs.python.org/issue4434 where static
1724 # libpythonX.Y.a would get its symbols required for
1725 # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1726 # Problem does not happen for the recommended libpythonX.Y.so linkage.
1727 old_CFLAGS="$CFLAGS"
1728 CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1730 LIBS="$LIBS $PYTHON_LIBS"
1733 [#include "]${have_libpython}[/Python.h"],
1736 err = PyRun_SimpleString ("import itertools\n");
1738 return err == 0 ? 0 : 1;]),
1739 [dynamic_list=true], [], [true])
1741 CFLAGS="$old_CFLAGS"
1743 LDFLAGS="$old_LDFLAGS"
1745 if $dynamic_list; then
1746 found="-Wl,--dynamic-list"
1747 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1750 RDYNAMIC="-rdynamic"
1753 AC_MSG_RESULT($found)
1755 dnl For certain native configurations, we need to check whether thread
1756 dnl support can be built in or not.
1758 dnl Note that we only want this if we are both native (host == target),
1759 dnl and not doing a canadian cross build (build == host).
1761 if test ${build} = ${host} -a ${host} = ${target} ; then
1764 # See if thread_db library is around for Solaris thread debugging.
1765 # Note that we must explicitly test for version 1 of the library
1766 # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1768 AC_MSG_CHECKING(for Solaris thread debugging library)
1769 if test -f /usr/lib/libthread_db.so.1 ; then
1771 AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1772 [Define if using Solaris thread debugging.])
1773 CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1774 CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1775 AC_CHECK_LIB(dl, dlopen)
1776 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1777 # Sun randomly tweaked the prototypes in <proc_service.h>
1779 AC_MSG_CHECKING(if <proc_service.h> is old)
1780 AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1782 #include <proc_service.h>
1784 (struct ps_prochandle*, psaddr_t, const void*, size_t);
1785 ],, gdb_cv_proc_service_is_old=no,
1786 gdb_cv_proc_service_is_old=yes)
1788 AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1789 if test $gdb_cv_proc_service_is_old = yes; then
1790 AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1791 [Define if <proc_service.h> on solaris uses int instead of
1792 size_t, and assorted other type changes.])
1799 AC_MSG_CHECKING(for AiX thread debugging library)
1800 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1801 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1802 [#ifndef PTHDB_VERSION_3
1805 gdb_cv_have_aix_thread_debug=yes,
1806 gdb_cv_have_aix_thread_debug=no)])
1807 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1808 if test $gdb_cv_have_aix_thread_debug = yes; then
1809 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1810 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1811 LIBS="$LIBS -lpthdebug"
1813 # Older versions of AIX do not provide the declaration for
1814 # the getthrds function (it appears that it was introduced
1816 AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1820 AC_SUBST(CONFIG_LDFLAGS)
1823 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1824 dnl other error codes.
1825 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1826 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1827 gdb_cv_thread_db_h_has_td_notalloc,
1829 [#include <thread_db.h>],
1830 [int i = TD_NOTALLOC;],
1831 gdb_cv_thread_db_h_has_td_notalloc=yes,
1832 gdb_cv_thread_db_h_has_td_notalloc=no
1835 AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1836 gdb_cv_thread_db_h_has_td_version,
1838 [#include <thread_db.h>],
1839 [int i = TD_VERSION;],
1840 gdb_cv_thread_db_h_has_td_version=yes,
1841 gdb_cv_thread_db_h_has_td_version=no
1844 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1845 gdb_cv_thread_db_h_has_td_notls,
1847 [#include <thread_db.h>],
1848 [int i = TD_NOTLS;],
1849 gdb_cv_thread_db_h_has_td_notls=yes,
1850 gdb_cv_thread_db_h_has_td_notls=no
1854 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1855 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1856 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1858 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1859 AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1860 [Define if <thread_db.h> has the TD_VERSION error code.])
1862 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1863 AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1864 [Define if <thread_db.h> has the TD_NOTLS error code.])
1867 dnl See if we have a sys/syscall header file that has __NR_tkill.
1868 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1869 AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1870 gdb_cv_sys_syscall_h_has_tkill,
1872 [#include <sys/syscall.h>],
1873 [int i = __NR_tkill;],
1874 gdb_cv_sys_syscall_h_has_tkill=yes,
1875 gdb_cv_sys_syscall_h_has_tkill=no
1879 dnl See if we can issue tkill syscall.
1880 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes"; then
1881 AC_CHECK_FUNC(syscall,
1882 AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1886 dnl Check if we can disable the virtual address space randomization.
1887 dnl The functionality of setarch -R.
1888 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1889 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1890 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
1891 # define ADDR_NO_RANDOMIZE 0x0040000
1893 /* Test the flag could be set and stays set. */
1894 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1895 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1897 AC_RUN_IFELSE([PERSONALITY_TEST],
1898 [have_personality=true],
1899 [have_personality=false],
1900 [AC_LINK_IFELSE([PERSONALITY_TEST],
1901 [have_personality=true],
1902 [have_personality=false])])
1903 if $have_personality
1905 AC_DEFINE([HAVE_PERSONALITY], 1,
1906 [Define if you support the personality syscall.])
1909 dnl Set the host's .gdbinit filename.
1918 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1920 dnl Handle optional features that can be enabled.
1922 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1923 # except that the argument to --with-sysroot is optional.
1924 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1925 if test "x$with_sysroot" = xyes; then
1926 with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1928 AC_ARG_WITH(sysroot,
1929 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1930 [search for usr/lib et al within DIR]),
1931 [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1932 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1933 [search for usr/lib et al within DIR])
1934 AC_SUBST(TARGET_SYSTEM_ROOT)
1935 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1937 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1938 [automatically load a system-wide gdbinit file],
1941 AC_ARG_ENABLE(werror,
1942 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
1943 [case "${enableval}" in
1944 yes | y) ERROR_ON_WARNING="yes" ;;
1945 no | n) ERROR_ON_WARNING="no" ;;
1946 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1949 # Enable -Werror by default when using gcc. Turn it off for releases.
1950 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
1951 ERROR_ON_WARNING=yes
1955 if test "${ERROR_ON_WARNING}" = yes ; then
1956 WERROR_CFLAGS="-Werror"
1959 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
1961 -Wno-unused -Wunused-value -Wunused-function \
1962 -Wno-switch -Wno-char-subscripts -Wmissing-prototypes \
1963 -Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type \
1964 -Wold-style-declaration -Wold-style-definition"
1966 # Enable -Wno-format by default when using gcc on mingw since many
1967 # GCC versions complain about %I64.
1969 *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
1970 *) build_warnings="$build_warnings -Wformat-nonliteral" ;;
1973 AC_ARG_ENABLE(build-warnings,
1974 AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]),
1975 [case "${enableval}" in
1977 no) build_warnings="-w";;
1978 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1979 build_warnings="${build_warnings} ${t}";;
1980 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1981 build_warnings="${t} ${build_warnings}";;
1982 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1984 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1985 echo "Setting compiler warning flags = $build_warnings" 6>&1
1987 AC_ARG_ENABLE(gdb-build-warnings,
1988 AS_HELP_STRING([--enable-gdb-build-warnings], [enable GDB specific build-time compiler warnings if gcc is used]),
1989 [case "${enableval}" in
1991 no) build_warnings="-w";;
1992 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1993 build_warnings="${build_warnings} ${t}";;
1994 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1995 build_warnings="${t} ${build_warnings}";;
1996 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1998 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1999 echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
2002 if test "x${build_warnings}" != x -a "x$GCC" = xyes
2004 AC_MSG_CHECKING(compiler warning flags)
2005 # Separate out the -Werror flag as some files just cannot be
2006 # compiled with it enabled.
2007 for w in ${build_warnings}; do
2009 -Werr*) WERROR_CFLAGS=-Werror ;;
2010 *) # Check that GCC accepts it
2011 saved_CFLAGS="$CFLAGS"
2013 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
2014 CFLAGS="$saved_CFLAGS"
2017 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
2019 AC_SUBST(WARN_CFLAGS)
2020 AC_SUBST(WERROR_CFLAGS)
2022 # In the Cygwin environment, we need some additional flags.
2023 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
2024 [AC_EGREP_CPP(^lose$, [
2025 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
2027 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
2030 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
2031 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
2033 *go32* ) SER_HARDWIRE=ser-go32.o ;;
2034 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
2035 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
2037 AC_SUBST(SER_HARDWIRE)
2039 # libreadline needs libuser32.a in a cygwin environment
2041 if test x$gdb_cv_os_cygwin = xyes; then
2042 WIN32LIBS="-luser32"
2044 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
2049 # The ser-tcp.c module requires sockets.
2052 AC_DEFINE(USE_WIN32API, 1,
2053 [Define if we should use the Windows API, instead of the
2054 POSIX API. On Windows, we use the Windows API when
2055 building for MinGW, but the POSIX API when building
2057 WIN32LIBS="$WIN32LIBS -lws2_32"
2062 # Add ELF support to GDB, but only if BFD includes ELF support.
2063 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
2064 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
2065 if test $gdb_cv_var_elf = yes; then
2066 CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o"
2067 AC_DEFINE(HAVE_ELF, 1,
2068 [Define if ELF support should be included.])
2069 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
2070 if test "$plugins" = "yes"; then
2071 AC_SEARCH_LIBS(dlopen, dl)
2075 # Add macho support to GDB, but only if BFD includes it.
2076 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
2077 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
2078 if test $gdb_cv_var_macho = yes; then
2079 CONFIG_OBS="$CONFIG_OBS machoread.o"
2082 # Add SOM support to GDB, but only if BFD includes it.
2083 GDB_AC_CHECK_BFD([for SOM support in BFD], gdb_cv_var_som,
2084 [bfd_som_attach_aux_hdr (NULL, 0, NULL)], som.h)
2085 if test $gdb_cv_var_som = yes; then
2086 CONFIG_OBS="$CONFIG_OBS somread.o"
2089 # Add any host-specific objects to GDB.
2090 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
2092 # If building on ELF, look for lzma support for embedded compressed debug info.
2093 if test $gdb_cv_var_elf = yes; then
2095 AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
2096 [], [with_lzma=auto])
2097 AC_MSG_CHECKING([whether to use lzma])
2098 AC_MSG_RESULT([$with_lzma])
2100 if test "${with_lzma}" != no; then
2101 AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
2102 [lzma_index_iter iter;
2103 lzma_index_iter_init (&iter, 0);
2104 lzma_mf_is_supported (LZMA_MF_HC3);])
2105 if test "$HAVE_LIBLZMA" != yes; then
2106 if test "$with_lzma" = yes; then
2107 AC_MSG_ERROR([missing liblzma for --with-lzma])
2113 LIBGUI="../libgui/src/libgui.a"
2114 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
2116 AC_SUBST(GUI_CFLAGS_X)
2120 AC_SUBST(WIN32LDAPP)
2123 *-*-cygwin* | *-*-mingw* )
2132 if test "${enable_gdbtk}" = "yes"; then
2134 # Gdbtk must have an absolute path to srcdir in order to run
2135 # properly when not installed.
2143 # If $no_tk is nonempty, then we can't do Tk, and there is no
2144 # point to doing Tcl.
2147 if test -z "${no_tcl}" -a -z "${no_tk}"; then
2150 # Check for in-tree tcl
2157 if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2161 # Find Tcl private headers
2162 if test x"${intree}" = xno; then
2163 CY_AC_TCL_PRIVATE_HEADERS
2164 TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2165 TCL_LIBRARY="${TCL_LIB_SPEC}"
2168 # If building tcl in the same src tree, private headers
2169 # are not needed, but we need to be sure to use the right
2171 TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2172 TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2173 TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2175 AC_SUBST(TCL_INCLUDE)
2176 AC_SUBST(TCL_LIBRARY)
2181 # Check for in-tree Tk
2183 if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2187 # Find Tk private headers
2188 if test x"${intree}" = xno; then
2189 CY_AC_TK_PRIVATE_HEADERS
2190 TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2191 TK_LIBRARY=${TK_LIB_SPEC}
2194 TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2195 TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2196 TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2198 AC_SUBST(TK_INCLUDE)
2199 AC_SUBST(TK_LIBRARY)
2201 AC_SUBST(TK_XINCLUDES)
2203 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2205 # Include some libraries that Tcl and Tk want.
2206 TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2207 # Yes, the ordering seems wrong here. But it isn't.
2208 # TK_LIBS is the list of libraries that need to be linked
2209 # after Tcl/Tk. Note that this isn't put into LIBS. If it
2210 # were in LIBS then any link tests after this point would
2211 # try to include things like `$(LIBGUI)', which wouldn't work.
2212 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2214 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2215 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2216 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2217 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2218 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2219 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2220 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2222 if test x$gdb_cv_os_cygwin = xyes; then
2223 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2224 WIN32LDAPP="-Wl,--subsystem,console"
2225 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2228 AC_CONFIG_SUBDIRS(gdbtk)
2236 AC_SUBST(GDBTK_CFLAGS)
2237 AC_SUBST(GDBTK_SRC_DIR)
2241 # Unlike the sim directory, whether a simulator is linked is controlled by
2242 # presence of a gdb_sim definition in the target configure.tgt entry.
2243 # This code just checks for a few cases where we'd like to ignore those
2244 # definitions, even when they're present in the '.mt' file. These cases
2245 # are when --disable-sim is specified, or if the simulator directory is
2246 # not part of the source tree.
2249 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2250 [echo "enable_sim = $enable_sim";
2251 echo "enableval = ${enableval}";
2252 case "${enableval}" in
2253 yes) ignore_sim=false ;;
2254 no) ignore_sim=true ;;
2255 *) ignore_sim=false ;;
2259 if test ! -d "${srcdir}/../sim"; then
2265 if test "${ignore_sim}" = "false"; then
2266 if test x"${gdb_sim}" != x ; then
2268 SIM_OBS="remote-sim.o"
2269 AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2275 AC_SUBST(ENABLE_CFLAGS)
2276 AC_SUBST(PROFILE_CFLAGS)
2278 AC_SUBST(CONFIG_OBS)
2279 AC_SUBST(CONFIG_DEPS)
2280 AC_SUBST(CONFIG_SRCS)
2281 AC_SUBST(CONFIG_ALL)
2282 AC_SUBST(CONFIG_CLEAN)
2283 AC_SUBST(CONFIG_INSTALL)
2284 AC_SUBST(CONFIG_UNINSTALL)
2286 # List of host floatformats.
2287 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2288 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2289 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2291 # target_subdir is used by the testsuite to find the target libraries.
2293 if test "${host}" != "${target}"; then
2294 target_subdir="${target_alias}/"
2296 AC_SUBST(target_subdir)
2299 if test "${gdb_native}" = "yes"; then
2300 host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2301 if test ! -f ${host_makefile_frag}; then
2302 AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2304 frags="$frags $host_makefile_frag"
2306 host_makefile_frag=/dev/null
2309 AC_SUBST_FILE(host_makefile_frag)
2313 if test "${gdb_native}" = "yes"; then
2314 # We pick this up from the host configuration file (.mh) because we
2315 # do not have a native configuration Makefile fragment.
2316 nativefile=`sed -n '
2317 s/NAT_FILE[ ]*=[ ]*\([^ ]*\)/\1/p
2318 ' ${host_makefile_frag}`
2322 if test x"${gdb_osabi}" != x ; then
2323 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2324 [Define to the default OS ABI for this configuration.])
2327 # Enable multi-ice-gdb-server.
2328 AC_ARG_ENABLE(multi-ice,
2329 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2333 *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2335 if test "x$enable_multi_ice" = xyes; then
2336 AC_CONFIG_SUBDIRS(multi-ice)
2339 AC_ARG_ENABLE(gdbserver,
2340 AS_HELP_STRING([--enable-gdbserver],
2341 [automatically build gdbserver (yes/no/auto, default is auto)]),
2342 [case "${enableval}" in
2344 *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2345 esac],[enable_gdbserver=auto])
2347 # We only build gdbserver automatically in a native configuration, and
2348 # only if the user did not explicitly disable its build.
2349 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2350 AC_MSG_CHECKING(whether gdbserver is supported on this host)
2351 if test "x$build_gdbserver" = xyes; then
2353 AC_CONFIG_SUBDIRS(gdbserver)
2354 gdbserver_build_enabled=yes
2360 # If the user explicitly request the gdbserver to be built, verify that
2361 # we were in fact able to enable it.
2362 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2363 AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2366 # Check for babeltrace and babeltrace-ctf
2367 AC_ARG_WITH(babeltrace,
2368 AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2369 [], [with_babeltrace=auto])
2370 AC_MSG_CHECKING([whether to use babeltrace])
2371 AC_MSG_RESULT([$with_babeltrace])
2373 if test "x$with_babeltrace" = "xno"; then
2374 AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2376 # Append -Werror to CFLAGS so that configure can catch the warning
2377 # "assignment from incompatible pointer type", which is related to
2378 # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
2379 # in GDB, while babeltrace 1.0.3 is broken.
2380 # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2381 # safe to save and restore CFLAGS here.
2382 saved_CFLAGS=$CFLAGS
2383 CFLAGS="$CFLAGS -Werror"
2384 AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2385 [#include <babeltrace/babeltrace.h>
2386 #include <babeltrace/ctf/events.h>
2387 #include <babeltrace/ctf/iterator.h>],
2388 [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2389 struct bt_ctf_event *event = NULL;
2390 const struct bt_definition *scope;
2392 bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2393 scope = bt_ctf_get_top_level_scope (event,
2394 BT_STREAM_EVENT_HEADER);
2395 bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2397 CFLAGS=$saved_CFLAGS
2399 if test "$HAVE_LIBBABELTRACE" != yes; then
2400 if test "$with_babeltrace" = yes; then
2401 AC_MSG_ERROR([babeltrace is missing or unusable])
2403 AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2408 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2409 # to an empty version.
2415 if test "${nativefile}" != ""; then
2416 case "${nativefile}" in
2417 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2418 * ) GDB_NM_FILE="${nativefile}"
2420 files="${files} ${GDB_NM_FILE}"
2421 links="${links} nm.h"
2422 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2424 AC_SUBST(GDB_NM_FILE)
2426 AC_LINK_FILES($files, $links)
2428 dnl Check for exe extension set on certain hosts (e.g. Win32)
2431 dnl Detect the character set used by this host.
2432 dnl At the moment, we just assume it's UTF-8.
2433 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2434 [Define to be a string naming the default host character set.])
2436 # Undo the $ec_script escaping suitable for Makefile.
2437 transform=`echo "$program_transform_name" | sed -e 's/[\\$][\\$]/\\$/g'`
2438 GDB_TRANSFORM_NAME=`echo gdb | sed -e "$transform"`
2439 if test "x$GDB_TRANSFORM_NAME" = x; then
2440 GDB_TRANSFORM_NAME=gdb
2442 AC_SUBST(GDB_TRANSFORM_NAME)
2443 GCORE_TRANSFORM_NAME=`echo gcore | sed -e "$transform"`
2444 if test "x$GCORE_TRANSFORM_NAME" = x; then
2445 GCORE_TRANSFORM_NAME=gcore
2447 AC_SUBST(GCORE_TRANSFORM_NAME)
2448 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2450 AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile,
2452 case x$CONFIG_HEADERS in
2453 xconfig.h:config.in)