1 dnl Autoconf configure snippets for common.
2 dnl Copyright (C) 1995-2020 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 sys/procfs.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])
58 dnl Check if we can disable the virtual address space randomization.
59 dnl The functionality of setarch -R.
60 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
61 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
62 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
63 # define ADDR_NO_RANDOMIZE 0x0040000
65 /* Test the flag could be set and stays set. */
66 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
67 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
69 AC_RUN_IFELSE([PERSONALITY_TEST],
70 [have_personality=true],
71 [have_personality=false],
72 [AC_LINK_IFELSE([PERSONALITY_TEST],
73 [have_personality=true],
74 [have_personality=false])])
77 AC_DEFINE([HAVE_PERSONALITY], 1,
78 [Define if you support the personality syscall.])
81 AC_CHECK_DECLS([strstr])
83 # ----------------------- #
84 # Checks for structures. #
85 # ----------------------- #
87 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
89 AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd,
90 [AC_DEFINE(HAVE_KINFO_GETFILE, 1,
91 [Define to 1 if your system has the kinfo_getfile function. ])])
93 # Check for std::thread. This does not work on some platforms, like
96 AX_PTHREAD([threads=yes], [threads=no])
97 if test "$threads" = "yes"; then
99 LIBS="$PTHREAD_LIBS $LIBS"
100 save_CXXFLAGS="$CXXFLAGS"
101 CXXFLAGS="$PTHREAD_CFLAGS $save_CXXFLAGS"
102 AC_CACHE_CHECK([for std::thread],
103 gdb_cv_cxx_std_thread,
104 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
106 void callback() { }]],
107 [[std::thread t(callback);]])],
108 gdb_cv_cxx_std_thread=yes,
109 gdb_cv_cxx_std_thread=no)])
111 # This check must be here, while LIBS includes any necessary
113 AC_CHECK_FUNCS([pthread_sigmask pthread_setname_np])
116 CXXFLAGS="$save_CXXFLAGS"
118 if test "$gdb_cv_cxx_std_thread" = "yes"; then
119 AC_DEFINE(CXX_STD_THREAD, 1,
120 [Define to 1 if std::thread works.])
124 dnl Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't
125 dnl do since sigsetjmp might only be defined as a macro.
126 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
129 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
130 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
131 if test "$gdb_cv_func_sigsetjmp" = "yes"; then
132 AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
135 AC_ARG_WITH(intel_pt,
136 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
137 [], [with_intel_pt=auto])
138 AC_MSG_CHECKING([whether to use intel pt])
139 AC_MSG_RESULT([$with_intel_pt])
141 if test "${with_intel_pt}" = no; then
142 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
145 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
146 #include <linux/perf_event.h>
147 #ifndef PERF_ATTR_SIZE_VER5
150 ]])], [perf_event=yes], [perf_event=no])
151 if test "$perf_event" != yes; then
152 if test "$with_intel_pt" = yes; then
153 AC_MSG_ERROR([linux/perf_event.h missing or too old])
155 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
159 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
160 if test "$HAVE_LIBIPT" != yes; then
161 if test "$with_intel_pt" = yes; then
162 AC_MSG_ERROR([libipt is missing or unusable])
164 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
169 AC_CHECK_FUNCS(pt_insn_event)
170 AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
171 [#include <intel-pt.h>])
176 if test "$ac_cv_header_sys_procfs_h" = yes; then
177 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
178 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
179 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
180 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
181 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
182 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
183 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
184 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)