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 AC_CHECK_FUNCS([fdwalk getrlimit pipe pipe2 poll socketpair sigaction \
55 ptrace64 sbrk setns sigaltstack sigprocmask \
56 setpgid setpgrp getrusage getauxval sigtimedwait])
58 # This is needed for RHEL 5 and uclibc-ng < 1.0.39.
59 # These did not define ADDR_NO_RANDOMIZE in sys/personality.h,
60 # only in linux/personality.h.
61 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
63 AC_CHECK_DECLS([strstr])
65 # ----------------------- #
66 # Checks for structures. #
67 # ----------------------- #
69 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
71 # On FreeBSD we need libutil for the kinfo_get* functions. On
72 # GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
73 # Figure out which one to use.
74 AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd)
76 # Define HAVE_KINFO_GETFILE if kinfo_getfile is available.
77 AC_CHECK_FUNCS(kinfo_getfile)
79 # ----------------------- #
80 # Check for threading. #
81 # ----------------------- #
83 AC_ARG_ENABLE(threading,
84 AS_HELP_STRING([--enable-threading], [include support for parallel processing of data (yes/no)]),
86 yes) want_threading=yes ;;
87 no) want_threading=no ;;
88 *) AC_MSG_ERROR([bad value $enableval for threading]) ;;
92 # Check for std::thread. This does not work on some platforms, like
95 AX_PTHREAD([threads=yes], [threads=no])
97 LIBS="$PTHREAD_LIBS $LIBS"
98 save_CXXFLAGS="$CXXFLAGS"
99 CXXFLAGS="$PTHREAD_CFLAGS $save_CXXFLAGS"
100 AC_CACHE_CHECK([for std::thread],
101 gdb_cv_cxx_std_thread,
102 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
103 dnl NOTE: this must be kept in sync with common-defs.h.
104 [[#if defined (__MINGW32__) || defined (__CYGWIN__)
106 # if _WIN32_WINNT < 0x0501
108 # define _WIN32_WINNT 0x0501
111 # define _WIN32_WINNT 0x0501
113 #endif /* __MINGW32__ || __CYGWIN__ */
115 void callback() { }]],
116 [[std::thread t(callback);]])],
117 gdb_cv_cxx_std_thread=yes,
118 gdb_cv_cxx_std_thread=no)])
120 if test "$threads" = "yes"; then
121 # This check must be here, while LIBS includes any necessary
123 AC_CHECK_FUNCS([pthread_sigmask pthread_setname_np])
126 CXXFLAGS="$save_CXXFLAGS"
128 if test "$want_threading" = "yes"; then
129 if test "$gdb_cv_cxx_std_thread" = "yes"; then
130 AC_DEFINE(CXX_STD_THREAD, 1,
131 [Define to 1 if std::thread works.])
136 dnl Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't
137 dnl do since sigsetjmp might only be defined as a macro.
140 [gdb_cv_func_sigsetjmp],
143 [#include <setjmp.h>],
145 while (! sigsetjmp (env, 1))
146 siglongjmp (env, 1);]
148 [gdb_cv_func_sigsetjmp=yes],
149 [gdb_cv_func_sigsetjmp=no]
152 if test "$gdb_cv_func_sigsetjmp" = "yes"; then
153 AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
156 AC_ARG_WITH(intel_pt,
157 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
158 [], [with_intel_pt=auto])
159 AC_MSG_CHECKING([whether to use intel pt])
160 AC_MSG_RESULT([$with_intel_pt])
162 if test "${with_intel_pt}" = no; then
163 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
166 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
167 #include <linux/perf_event.h>
168 #ifndef PERF_ATTR_SIZE_VER5
171 ]])], [perf_event=yes], [perf_event=no])
172 if test "$perf_event" != yes; then
173 if test "$with_intel_pt" = yes; then
174 AC_MSG_ERROR([linux/perf_event.h missing or too old])
176 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
180 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
181 if test "$HAVE_LIBIPT" != yes; then
182 if test "$with_intel_pt" = yes; then
183 AC_MSG_ERROR([libipt is missing or unusable])
185 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
190 AC_CHECK_FUNCS(pt_insn_event)
191 AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
192 [#include <intel-pt.h>])
197 # Check if the compiler and runtime support printing long longs.
199 AC_CACHE_CHECK([for long long support in printf],
200 gdb_cv_printf_has_long_long,
201 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
204 l = (l << 16) + 0x0123;
205 l = (l << 16) + 0x4567;
206 l = (l << 16) + 0x89ab;
207 l = (l << 16) + 0xcdef;
208 sprintf (buf, "0x%016llx", l);
209 return (strcmp ("0x0123456789abcdef", buf));]])],
210 gdb_cv_printf_has_long_long=yes,
211 gdb_cv_printf_has_long_long=no,
212 gdb_cv_printf_has_long_long=no)])
213 if test "$gdb_cv_printf_has_long_long" = yes; then
214 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
215 [Define to 1 if the "%ll" format works to print long longs.])
219 if test "$ac_cv_header_sys_procfs_h" = yes; then
220 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
221 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
222 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
223 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
224 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
225 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
226 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
227 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
233 AS_HELP_STRING([--with-xxhash], [use libxxhash for hashing (faster) (auto/yes/no)]),
234 [], [with_xxhash=auto])
236 if test "x$with_xxhash" != "xno"; then
237 AC_LIB_HAVE_LINKFLAGS([xxhash], [],
238 [#include <xxhash.h>],
241 if test "$HAVE_LIBXXHASH" != yes; then
242 if test "$with_xxhash" = yes; then
243 AC_MSG_ERROR([xxhash is missing or unusable])
246 if test "x$with_xxhash" = "xauto"; then
247 with_xxhash="$HAVE_LIBXXHASH"
251 AC_MSG_CHECKING([whether to use xxhash])
252 AC_MSG_RESULT([$with_xxhash])
255 dnl Check that the provided value ($1) is either "yes" or "no". If not,
256 dnl emit an error message mentionning the configure option $2, and abort
258 AC_DEFUN([GDB_CHECK_YES_NO_VAL],
264 AC_MSG_ERROR([bad value $1 for $2])
269 dnl Check that the provided value ($1) is either "yes", "no" or "auto". If not,
270 dnl emit an error message mentionning the configure option $2, and abort
272 AC_DEFUN([GDB_CHECK_YES_NO_AUTO_VAL],
278 AC_MSG_ERROR([bad value $1 for $2])