1 dnl Autoconf configure snippets for common.
2 dnl Copyright (C) 1995-2024 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 $enableval for threading]) ;;
92 [want_threading=auto])
94 # Check for std::thread. This does not work on some platforms, like
95 # mingw using the win32 threads model with gcc older than 13, and
98 AX_PTHREAD([threads=yes], [threads=no])
100 LIBS="$PTHREAD_LIBS $LIBS"
101 save_CXXFLAGS="$CXXFLAGS"
102 CXXFLAGS="$PTHREAD_CFLAGS $save_CXXFLAGS"
103 AC_CACHE_CHECK([for std::thread],
104 gdb_cv_cxx_std_thread,
105 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
106 dnl NOTE: this must be kept in sync with common-defs.h.
107 [[#if defined (__MINGW32__) || defined (__CYGWIN__)
109 # if _WIN32_WINNT < 0x0501
111 # define _WIN32_WINNT 0x0501
114 # define _WIN32_WINNT 0x0501
116 #endif /* __MINGW32__ || __CYGWIN__ */
119 void callback() { }]],
120 [[std::thread t(callback);]])],
121 gdb_cv_cxx_std_thread=yes,
122 gdb_cv_cxx_std_thread=no)])
124 if test "$threads" = "yes"; then
125 # This check must be here, while LIBS includes any necessary
127 AC_CHECK_FUNCS([pthread_sigmask pthread_setname_np])
130 CXXFLAGS="$save_CXXFLAGS"
132 if test "$want_threading" != "no"; then
133 if test "$gdb_cv_cxx_std_thread" = "yes"; then
134 AC_DEFINE(CXX_STD_THREAD, 1,
135 [Define to 1 if std::thread works.])
137 if test "$want_threading" = "yes"; then
138 AC_MSG_ERROR([std::thread does not work; disable threading])
140 AC_MSG_WARN([std::thread does not work; disabling threading])
146 dnl Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't
147 dnl do since sigsetjmp might only be defined as a macro.
150 [gdb_cv_func_sigsetjmp],
153 [#include <setjmp.h>],
155 while (! sigsetjmp (env, 1))
156 siglongjmp (env, 1);]
158 [gdb_cv_func_sigsetjmp=yes],
159 [gdb_cv_func_sigsetjmp=no]
162 if test "$gdb_cv_func_sigsetjmp" = "yes"; then
163 AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
166 AC_ARG_WITH(intel_pt,
167 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
168 [], [with_intel_pt=auto])
169 AC_MSG_CHECKING([whether to use intel pt])
170 AC_MSG_RESULT([$with_intel_pt])
172 if test "${with_intel_pt}" = no; then
173 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
176 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
177 #include <linux/perf_event.h>
178 #ifndef PERF_ATTR_SIZE_VER5
181 ]])], [perf_event=yes], [perf_event=no])
182 if test "$perf_event" != yes; then
183 if test "$with_intel_pt" = yes; then
184 AC_MSG_ERROR([linux/perf_event.h missing or too old])
186 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
190 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
191 if test "$HAVE_LIBIPT" != yes; then
192 if test "$with_intel_pt" = yes; then
193 AC_MSG_ERROR([libipt is missing or unusable])
195 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
200 AC_CHECK_FUNCS(pt_insn_event)
201 AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
202 [#include <intel-pt.h>])
203 AC_CHECK_MEMBERS([struct pt_event.variant.ptwrite], [], [],
204 [#include <intel-pt.h>])
209 # Check if the compiler and runtime support printing long longs.
211 AC_CACHE_CHECK([for long long support in printf],
212 gdb_cv_printf_has_long_long,
213 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
216 l = (l << 16) + 0x0123;
217 l = (l << 16) + 0x4567;
218 l = (l << 16) + 0x89ab;
219 l = (l << 16) + 0xcdef;
220 sprintf (buf, "0x%016llx", l);
221 return (strcmp ("0x0123456789abcdef", buf));]])],
222 gdb_cv_printf_has_long_long=yes,
223 gdb_cv_printf_has_long_long=no,
224 gdb_cv_printf_has_long_long=no)])
225 if test "$gdb_cv_printf_has_long_long" = yes; then
226 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
227 [Define to 1 if the "%ll" format works to print long longs.])
231 if test "$ac_cv_header_sys_procfs_h" = yes; then
232 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
233 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
234 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
235 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
236 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
237 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
238 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
239 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
245 AS_HELP_STRING([--with-xxhash], [use libxxhash for hashing (faster) (auto/yes/no)]),
246 [], [with_xxhash=auto])
248 if test "x$with_xxhash" != "xno"; then
249 AC_LIB_HAVE_LINKFLAGS([xxhash], [],
250 [#include <xxhash.h>],
253 if test "$HAVE_LIBXXHASH" != yes; then
254 if test "$with_xxhash" = yes; then
255 AC_MSG_ERROR([xxhash is missing or unusable])
258 if test "x$with_xxhash" = "xauto"; then
259 with_xxhash="$HAVE_LIBXXHASH"
263 AC_MSG_CHECKING([whether to use xxhash])
264 AC_MSG_RESULT([$with_xxhash])
267 dnl Check that the provided value ($1) is either "yes" or "no". If not,
268 dnl emit an error message mentionning the configure option $2, and abort
270 AC_DEFUN([GDB_CHECK_YES_NO_VAL],
276 AC_MSG_ERROR([bad value $1 for $2])
281 dnl Check that the provided value ($1) is either "yes", "no" or "auto". If not,
282 dnl emit an error message mentionning the configure option $2, and abort
284 AC_DEFUN([GDB_CHECK_YES_NO_AUTO_VAL],
290 AC_MSG_ERROR([bad value $1 for $2])