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], [
27 AC_DEFINE(USE_WIN32API, 1,
28 [Define if we should use the Windows API, instead of the
29 POSIX API. On Windows, we use the Windows API when
30 building for MinGW, but the POSIX API when building
32 WIN32APILIBS="-lws2_32"
36 dnl Note that this requires codeset.m4, which is included
37 dnl by the users of common.m4.
40 AC_CHECK_HEADERS(linux/perf_event.h locale.h memory.h signal.h dnl
41 sys/resource.h sys/socket.h dnl
42 sys/un.h sys/wait.h dnl
43 thread_db.h wait.h dnl
46 linux/elf.h sys/procfs.h proc_service.h)
50 AC_CHECK_FUNCS([fdwalk getrlimit pipe pipe2 socketpair sigaction \
51 ptrace64 sbrk setns sigaltstack sigprocmask \
52 setpgid setpgrp getrusage getauxval])
54 dnl Check if we can disable the virtual address space randomization.
55 dnl The functionality of setarch -R.
56 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
57 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
58 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
59 # define ADDR_NO_RANDOMIZE 0x0040000
61 /* Test the flag could be set and stays set. */
62 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
63 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
65 AC_RUN_IFELSE([PERSONALITY_TEST],
66 [have_personality=true],
67 [have_personality=false],
68 [AC_LINK_IFELSE([PERSONALITY_TEST],
69 [have_personality=true],
70 [have_personality=false])])
73 AC_DEFINE([HAVE_PERSONALITY], 1,
74 [Define if you support the personality syscall.])
77 AC_CHECK_DECLS([strstr])
79 # ----------------------- #
80 # Checks for structures. #
81 # ----------------------- #
83 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
85 AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd,
86 [AC_DEFINE(HAVE_KINFO_GETFILE, 1,
87 [Define to 1 if your system has the kinfo_getfile function. ])])
89 # Check for std::thread. This does not work on some platforms, like
92 AX_PTHREAD([threads=yes], [threads=no])
93 if test "$threads" = "yes"; then
95 LIBS="$PTHREAD_LIBS $LIBS"
96 save_CXXFLAGS="$CXXFLAGS"
97 CXXFLAGS="$PTHREAD_CFLAGS $save_CXXFLAGS"
98 AC_CACHE_CHECK([for std::thread],
99 gdb_cv_cxx_std_thread,
100 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
102 void callback() { }]],
103 [[std::thread t(callback);]])],
104 gdb_cv_cxx_std_thread=yes,
105 gdb_cv_cxx_std_thread=no)])
107 # This check must be here, while LIBS includes any necessary
109 AC_CHECK_FUNCS([pthread_sigmask pthread_setname_np])
112 CXXFLAGS="$save_CXXFLAGS"
114 if test "$gdb_cv_cxx_std_thread" = "yes"; then
115 AC_DEFINE(CXX_STD_THREAD, 1,
116 [Define to 1 if std::thread works.])
120 dnl Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't
121 dnl do since sigsetjmp might only be defined as a macro.
122 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
125 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
126 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
127 if test "$gdb_cv_func_sigsetjmp" = "yes"; then
128 AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
131 AC_ARG_WITH(intel_pt,
132 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
133 [], [with_intel_pt=auto])
134 AC_MSG_CHECKING([whether to use intel pt])
135 AC_MSG_RESULT([$with_intel_pt])
137 if test "${with_intel_pt}" = no; then
138 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
141 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
142 #include <linux/perf_event.h>
143 #ifndef PERF_ATTR_SIZE_VER5
146 ]])], [perf_event=yes], [perf_event=no])
147 if test "$perf_event" != yes; then
148 if test "$with_intel_pt" = yes; then
149 AC_MSG_ERROR([linux/perf_event.h missing or too old])
151 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
155 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
156 if test "$HAVE_LIBIPT" != yes; then
157 if test "$with_intel_pt" = yes; then
158 AC_MSG_ERROR([libipt is missing or unusable])
160 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
165 AC_CHECK_FUNCS(pt_insn_event)
166 AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
167 [#include <intel-pt.h>])
172 if test "$ac_cv_header_sys_procfs_h" = yes; then
173 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
174 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
175 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
176 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
177 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
178 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
179 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
180 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)