1 dnl Autoconf configure snippets for common.
2 dnl Copyright (C) 1995-2023 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 Invoke configury needed by the files in 'common'.
20 AC_DEFUN([GDB_AC_COMMON], [
21 # Set the 'development' global.
22 . $srcdir/../bfd/development.sh
30 AC_DEFINE(USE_WIN32API, 1,
31 [Define if we should use the Windows API, instead of the
32 POSIX API. On Windows, we use the Windows API when
33 building for MinGW, but the POSIX API when building
35 WIN32APILIBS="-lws2_32"
39 dnl Note that this requires codeset.m4, which is included
40 dnl by the users of common.m4.
43 AC_CHECK_HEADERS(linux/perf_event.h locale.h memory.h signal.h dnl
44 sys/resource.h sys/socket.h dnl
45 sys/un.h sys/wait.h dnl
46 thread_db.h wait.h dnl
49 linux/elf.h proc_service.h dnl
50 poll.h sys/poll.h sys/select.h)
54 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
55 AC_SEARCH_LIBS(socketpair, socket)
56 AC_CHECK_FUNCS([fdwalk getrlimit pipe pipe2 poll socketpair sigaction \
57 ptrace64 sbrk setns sigaltstack sigprocmask \
58 setpgid setpgrp getrusage getauxval sigtimedwait])
60 # This is needed for RHEL 5 and uclibc-ng < 1.0.39.
61 # These did not define ADDR_NO_RANDOMIZE in sys/personality.h,
62 # only in linux/personality.h.
63 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
65 AC_CHECK_DECLS([strstr])
67 # ----------------------- #
68 # Checks for structures. #
69 # ----------------------- #
71 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
73 # On FreeBSD we need libutil for the kinfo_get* functions. On
74 # GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
75 # Figure out which one to use.
76 AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd)
78 # Define HAVE_KINFO_GETFILE if kinfo_getfile is available.
79 AC_CHECK_FUNCS(kinfo_getfile)
81 # ----------------------- #
82 # Check for threading. #
83 # ----------------------- #
85 AC_ARG_ENABLE(threading,
86 AS_HELP_STRING([--enable-threading], [include support for parallel processing of data (yes/no)]),
88 yes) want_threading=yes ;;
89 no) want_threading=no ;;
90 *) AC_MSG_ERROR([bad value $enableval for threading]) ;;
94 # Check for std::thread. This does not work on some platforms, like
97 AX_PTHREAD([threads=yes], [threads=no])
99 LIBS="$PTHREAD_LIBS $LIBS"
100 save_CXXFLAGS="$CXXFLAGS"
101 CXXFLAGS="$PTHREAD_CFLAGS $save_CXXFLAGS"
102 AC_CACHE_CHECK([for std::thread],
103 gdb_cv_cxx_std_thread,
104 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
105 dnl NOTE: this must be kept in sync with common-defs.h.
106 [[#if defined (__MINGW32__) || defined (__CYGWIN__)
108 # if _WIN32_WINNT < 0x0501
110 # define _WIN32_WINNT 0x0501
113 # define _WIN32_WINNT 0x0501
115 #endif /* __MINGW32__ || __CYGWIN__ */
117 void callback() { }]],
118 [[std::thread t(callback);]])],
119 gdb_cv_cxx_std_thread=yes,
120 gdb_cv_cxx_std_thread=no)])
122 if test "$threads" = "yes"; then
123 # This check must be here, while LIBS includes any necessary
125 AC_CHECK_FUNCS([pthread_sigmask pthread_setname_np])
128 CXXFLAGS="$save_CXXFLAGS"
130 if test "$want_threading" = "yes"; then
131 if test "$gdb_cv_cxx_std_thread" = "yes"; then
132 AC_DEFINE(CXX_STD_THREAD, 1,
133 [Define to 1 if std::thread works.])
138 dnl Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't
139 dnl do since sigsetjmp might only be defined as a macro.
142 [gdb_cv_func_sigsetjmp],
145 [#include <setjmp.h>],
147 while (! sigsetjmp (env, 1))
148 siglongjmp (env, 1);]
150 [gdb_cv_func_sigsetjmp=yes],
151 [gdb_cv_func_sigsetjmp=no]
154 if test "$gdb_cv_func_sigsetjmp" = "yes"; then
155 AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
158 AC_ARG_WITH(intel_pt,
159 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
160 [], [with_intel_pt=auto])
161 AC_MSG_CHECKING([whether to use intel pt])
162 AC_MSG_RESULT([$with_intel_pt])
164 if test "${with_intel_pt}" = no; then
165 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
168 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
169 #include <linux/perf_event.h>
170 #ifndef PERF_ATTR_SIZE_VER5
173 ]])], [perf_event=yes], [perf_event=no])
174 if test "$perf_event" != yes; then
175 if test "$with_intel_pt" = yes; then
176 AC_MSG_ERROR([linux/perf_event.h missing or too old])
178 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
182 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
183 if test "$HAVE_LIBIPT" != yes; then
184 if test "$with_intel_pt" = yes; then
185 AC_MSG_ERROR([libipt is missing or unusable])
187 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
192 AC_CHECK_FUNCS(pt_insn_event)
193 AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
194 [#include <intel-pt.h>])
199 # Check if the compiler and runtime support printing long longs.
201 AC_CACHE_CHECK([for long long support in printf],
202 gdb_cv_printf_has_long_long,
203 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
206 l = (l << 16) + 0x0123;
207 l = (l << 16) + 0x4567;
208 l = (l << 16) + 0x89ab;
209 l = (l << 16) + 0xcdef;
210 sprintf (buf, "0x%016llx", l);
211 return (strcmp ("0x0123456789abcdef", buf));]])],
212 gdb_cv_printf_has_long_long=yes,
213 gdb_cv_printf_has_long_long=no,
214 gdb_cv_printf_has_long_long=no)])
215 if test "$gdb_cv_printf_has_long_long" = yes; then
216 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
217 [Define to 1 if the "%ll" format works to print long longs.])
221 if test "$ac_cv_header_sys_procfs_h" = yes; then
222 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
223 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
224 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
225 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
226 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
227 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
228 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
229 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
235 AS_HELP_STRING([--with-xxhash], [use libxxhash for hashing (faster) (auto/yes/no)]),
236 [], [with_xxhash=auto])
238 if test "x$with_xxhash" != "xno"; then
239 AC_LIB_HAVE_LINKFLAGS([xxhash], [],
240 [#include <xxhash.h>],
243 if test "$HAVE_LIBXXHASH" != yes; then
244 if test "$with_xxhash" = yes; then
245 AC_MSG_ERROR([xxhash is missing or unusable])
248 if test "x$with_xxhash" = "xauto"; then
249 with_xxhash="$HAVE_LIBXXHASH"
253 AC_MSG_CHECKING([whether to use xxhash])
254 AC_MSG_RESULT([$with_xxhash])
257 dnl Check that the provided value ($1) is either "yes" or "no". If not,
258 dnl emit an error message mentionning the configure option $2, and abort
260 AC_DEFUN([GDB_CHECK_YES_NO_VAL],
266 AC_MSG_ERROR([bad value $1 for $2])
271 dnl Check that the provided value ($1) is either "yes", "no" or "auto". If not,
272 dnl emit an error message mentionning the configure option $2, and abort
274 AC_DEFUN([GDB_CHECK_YES_NO_AUTO_VAL],
280 AC_MSG_ERROR([bad value $1 for $2])