1dnl Autoconf configure snippets for common. 2dnl Copyright (C) 1995-2023 Free Software Foundation, Inc. 3dnl 4dnl This file is part of GDB. 5dnl 6dnl This program is free software; you can redistribute it and/or modify 7dnl it under the terms of the GNU General Public License as published by 8dnl the Free Software Foundation; either version 3 of the License, or 9dnl (at your option) any later version. 10dnl 11dnl This program is distributed in the hope that it will be useful, 12dnl but WITHOUT ANY WARRANTY; without even the implied warranty of 13dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14dnl GNU General Public License for more details. 15dnl 16dnl You should have received a copy of the GNU General Public License 17dnl along with this program. If not, see <http://www.gnu.org/licenses/>. 18 19dnl Invoke configury needed by the files in 'common'. 20AC_DEFUN([GDB_AC_COMMON], [ 21 # Set the 'development' global. 22 . $srcdir/../bfd/development.sh 23 24 AC_HEADER_STDC 25 AC_FUNC_ALLOCA 26 27 WIN32APILIBS= 28 case ${host} in 29 *mingw32*) 30 AC_DEFINE(USE_WIN32API, 1, 31 [Define if we should use the Windows API, instead of the 32 POSIX API. On Windows, we use the Windows API when 33 building for MinGW, but the POSIX API when building 34 for Cygwin.]) 35 WIN32APILIBS="-lws2_32" 36 ;; 37 esac 38 39 dnl Note that this requires codeset.m4, which is included 40 dnl by the users of common.m4. 41 AM_LANGINFO_CODESET 42 43 AC_CHECK_HEADERS(linux/perf_event.h locale.h memory.h signal.h dnl 44 sys/resource.h sys/socket.h dnl 45 sys/un.h sys/wait.h dnl 46 thread_db.h wait.h dnl 47 termios.h dnl 48 dlfcn.h dnl 49 linux/elf.h proc_service.h dnl 50 poll.h sys/poll.h sys/select.h) 51 52 AC_FUNC_MMAP 53 AC_FUNC_FORK 54 AC_CHECK_FUNCS([fdwalk getrlimit pipe pipe2 poll socketpair sigaction \ 55 ptrace64 sbrk setns sigaltstack sigprocmask \ 56 setpgid setpgrp getrusage getauxval sigtimedwait]) 57 58 # This is needed for RHEL 5 and uclibc-ng < 1.0.39. 59 # These did not define ADDR_NO_RANDOMIZE in sys/personality.h, 60 # only in linux/personality.h. 61 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>]) 62 63 AC_CHECK_DECLS([strstr]) 64 65 # ----------------------- # 66 # Checks for structures. # 67 # ----------------------- # 68 69 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize]) 70 71 # On FreeBSD we need libutil for the kinfo_get* functions. On 72 # GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd. 73 # Figure out which one to use. 74 AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd) 75 76 # Define HAVE_KINFO_GETFILE if kinfo_getfile is available. 77 AC_CHECK_FUNCS(kinfo_getfile) 78 79 # ----------------------- # 80 # Check for threading. # 81 # ----------------------- # 82 83 AC_ARG_ENABLE(threading, 84 AS_HELP_STRING([--enable-threading], [include support for parallel processing of data (yes/no)]), 85 [case "$enableval" in 86 yes) want_threading=yes ;; 87 no) want_threading=no ;; 88 *) AC_MSG_ERROR([bad value $enableval for threading]) ;; 89 esac], 90 [want_threading=yes]) 91 92 # Check for std::thread. This does not work on some platforms, like 93 # mingw and DJGPP. 94 AC_LANG_PUSH([C++]) 95 AX_PTHREAD([threads=yes], [threads=no]) 96 save_LIBS="$LIBS" 97 LIBS="$PTHREAD_LIBS $LIBS" 98 save_CXXFLAGS="$CXXFLAGS" 99 CXXFLAGS="$PTHREAD_CFLAGS $save_CXXFLAGS" 100 AC_CACHE_CHECK([for std::thread], 101 gdb_cv_cxx_std_thread, 102 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( 103 dnl NOTE: this must be kept in sync with common-defs.h. 104 [[#if defined (__MINGW32__) || defined (__CYGWIN__) 105 # ifdef _WIN32_WINNT 106 # if _WIN32_WINNT < 0x0501 107 # undef _WIN32_WINNT 108 # define _WIN32_WINNT 0x0501 109 # endif 110 # else 111 # define _WIN32_WINNT 0x0501 112 # endif 113 #endif /* __MINGW32__ || __CYGWIN__ */ 114 #include <thread> 115 void callback() { }]], 116 [[std::thread t(callback);]])], 117 gdb_cv_cxx_std_thread=yes, 118 gdb_cv_cxx_std_thread=no)]) 119 120 if test "$threads" = "yes"; then 121 # This check must be here, while LIBS includes any necessary 122 # threading library. 123 AC_CHECK_FUNCS([pthread_sigmask pthread_setname_np]) 124 fi 125 LIBS="$save_LIBS" 126 CXXFLAGS="$save_CXXFLAGS" 127 128 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.]) 132 fi 133 fi 134 AC_LANG_POP 135 136 dnl Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't 137 dnl do since sigsetjmp might only be defined as a macro. 138 AC_CACHE_CHECK( 139 [for sigsetjmp], 140 [gdb_cv_func_sigsetjmp], 141 [AC_COMPILE_IFELSE( 142 [AC_LANG_PROGRAM( 143 [#include <setjmp.h>], 144 [sigjmp_buf env; 145 while (! sigsetjmp (env, 1)) 146 siglongjmp (env, 1);] 147 )], 148 [gdb_cv_func_sigsetjmp=yes], 149 [gdb_cv_func_sigsetjmp=no] 150 )] 151 ) 152 if test "$gdb_cv_func_sigsetjmp" = "yes"; then 153 AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ]) 154 fi 155 156 AC_ARG_WITH(intel_pt, 157 AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]), 158 [], [with_intel_pt=auto]) 159 AC_MSG_CHECKING([whether to use intel pt]) 160 AC_MSG_RESULT([$with_intel_pt]) 161 162 if test "${with_intel_pt}" = no; then 163 AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.]) 164 HAVE_LIBIPT=no 165 else 166 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[ 167 #include <linux/perf_event.h> 168 #ifndef PERF_ATTR_SIZE_VER5 169 # error 170 #endif 171 ]])], [perf_event=yes], [perf_event=no]) 172 if test "$perf_event" != yes; then 173 if test "$with_intel_pt" = yes; then 174 AC_MSG_ERROR([linux/perf_event.h missing or too old]) 175 else 176 AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.]) 177 fi 178 fi 179 180 AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);]) 181 if test "$HAVE_LIBIPT" != yes; then 182 if test "$with_intel_pt" = yes; then 183 AC_MSG_ERROR([libipt is missing or unusable]) 184 else 185 AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.]) 186 fi 187 else 188 save_LIBS=$LIBS 189 LIBS="$LIBS $LIBIPT" 190 AC_CHECK_FUNCS(pt_insn_event) 191 AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [], 192 [#include <intel-pt.h>]) 193 LIBS=$save_LIBS 194 fi 195 fi 196 197 # Check if the compiler and runtime support printing long longs. 198 199 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], 202 [[char buf[32]; 203 long long l = 0; 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 "$gdb_cv_printf_has_long_long" = yes; then 214 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1, 215 [Define to 1 if the "%ll" format works to print long longs.]) 216 fi 217 218 BFD_SYS_PROCFS_H 219 if test "$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) 228 fi 229]) 230 231dnl Check that the provided value ($1) is either "yes" or "no". If not, 232dnl emit an error message mentionning the configure option $2, and abort 233dnl the script. 234AC_DEFUN([GDB_CHECK_YES_NO_VAL], 235 [ 236 case $1 in 237 yes | no) 238 ;; 239 *) 240 AC_MSG_ERROR([bad value $1 for $2]) 241 ;; 242 esac 243 ]) 244 245dnl Check that the provided value ($1) is either "yes", "no" or "auto". If not, 246dnl emit an error message mentionning the configure option $2, and abort 247dnl the script. 248AC_DEFUN([GDB_CHECK_YES_NO_AUTO_VAL], 249 [ 250 case $1 in 251 yes | no | auto) 252 ;; 253 *) 254 AC_MSG_ERROR([bad value $1 for $2]) 255 ;; 256 esac 257 ]) 258