dnl Autoconf configure snippets for common. dnl Copyright (C) 1995-2021 Free Software Foundation, Inc. dnl dnl This file is part of GDB. dnl dnl This program is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 3 of the License, or dnl (at your option) any later version. dnl dnl This program is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the dnl GNU General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program. If not, see . dnl Invoke configury needed by the files in 'common'. AC_DEFUN([GDB_AC_COMMON], [ # Set the 'development' global. . $srcdir/../bfd/development.sh AC_HEADER_STDC AC_FUNC_ALLOCA WIN32APILIBS= case ${host} in *mingw32*) AC_DEFINE(USE_WIN32API, 1, [Define if we should use the Windows API, instead of the POSIX API. On Windows, we use the Windows API when building for MinGW, but the POSIX API when building for Cygwin.]) WIN32APILIBS="-lws2_32" ;; esac dnl Note that this requires codeset.m4, which is included dnl by the users of common.m4. AM_LANGINFO_CODESET AC_CHECK_HEADERS(linux/perf_event.h locale.h memory.h signal.h dnl sys/resource.h sys/socket.h dnl sys/un.h sys/wait.h dnl thread_db.h wait.h dnl termios.h dnl dlfcn.h dnl linux/elf.h proc_service.h dnl poll.h sys/poll.h sys/select.h) AC_FUNC_MMAP AC_FUNC_FORK AC_CHECK_FUNCS([fdwalk getrlimit pipe pipe2 poll socketpair sigaction \ ptrace64 sbrk setns sigaltstack sigprocmask \ setpgid setpgrp getrusage getauxval sigtimedwait]) # This is needed for RHEL 5 and uclibc-ng < 1.0.39. # These did not define ADDR_NO_RANDOMIZE in sys/personality.h, # only in linux/personality.h. AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include ]) AC_CHECK_DECLS([strstr]) # ----------------------- # # Checks for structures. # # ----------------------- # AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize]) # On FreeBSD we need libutil for the kinfo_get* functions. On # GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd. # Figure out which one to use. AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd) # Define HAVE_KINFO_GETFILE if kinfo_getfile is available. AC_CHECK_FUNCS(kinfo_getfile) # Check for std::thread. This does not work on some platforms, like # mingw and DJGPP. AC_LANG_PUSH([C++]) AX_PTHREAD([threads=yes], [threads=no]) if test "$threads" = "yes"; then save_LIBS="$LIBS" LIBS="$PTHREAD_LIBS $LIBS" save_CXXFLAGS="$CXXFLAGS" CXXFLAGS="$PTHREAD_CFLAGS $save_CXXFLAGS" AC_CACHE_CHECK([for std::thread], gdb_cv_cxx_std_thread, [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( [[#include void callback() { }]], [[std::thread t(callback);]])], gdb_cv_cxx_std_thread=yes, gdb_cv_cxx_std_thread=no)]) # This check must be here, while LIBS includes any necessary # threading library. AC_CHECK_FUNCS([pthread_sigmask pthread_setname_np]) LIBS="$save_LIBS" CXXFLAGS="$save_CXXFLAGS" fi if test "$gdb_cv_cxx_std_thread" = "yes"; then AC_DEFINE(CXX_STD_THREAD, 1, [Define to 1 if std::thread works.]) fi AC_LANG_POP dnl Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't dnl do since sigsetjmp might only be defined as a macro. AC_CACHE_CHECK( [for sigsetjmp], [gdb_cv_func_sigsetjmp], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [#include ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);] )], [gdb_cv_func_sigsetjmp=yes], [gdb_cv_func_sigsetjmp=no] )] ) if test "$gdb_cv_func_sigsetjmp" = "yes"; then AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ]) fi AC_ARG_WITH(intel_pt, AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]), [], [with_intel_pt=auto]) AC_MSG_CHECKING([whether to use intel pt]) AC_MSG_RESULT([$with_intel_pt]) if test "${with_intel_pt}" = no; then AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.]) HAVE_LIBIPT=no else AC_PREPROC_IFELSE([AC_LANG_SOURCE([[ #include #ifndef PERF_ATTR_SIZE_VER5 # error #endif ]])], [perf_event=yes], [perf_event=no]) if test "$perf_event" != yes; then if test "$with_intel_pt" = yes; then AC_MSG_ERROR([linux/perf_event.h missing or too old]) else AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.]) fi fi AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);]) if test "$HAVE_LIBIPT" != yes; then if test "$with_intel_pt" = yes; then AC_MSG_ERROR([libipt is missing or unusable]) else AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.]) fi else save_LIBS=$LIBS LIBS="$LIBS $LIBIPT" AC_CHECK_FUNCS(pt_insn_event) AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [], [#include ]) LIBS=$save_LIBS fi fi # Check if the compiler and runtime support printing long longs. AC_CACHE_CHECK([for long long support in printf], gdb_cv_printf_has_long_long, [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[char buf[32]; long long l = 0; l = (l << 16) + 0x0123; l = (l << 16) + 0x4567; l = (l << 16) + 0x89ab; l = (l << 16) + 0xcdef; sprintf (buf, "0x%016llx", l); return (strcmp ("0x0123456789abcdef", buf));]])], gdb_cv_printf_has_long_long=yes, gdb_cv_printf_has_long_long=no, gdb_cv_printf_has_long_long=no)]) if test "$gdb_cv_printf_has_long_long" = yes; then AC_DEFINE(PRINTF_HAS_LONG_LONG, 1, [Define to 1 if the "%ll" format works to print long longs.]) fi BFD_SYS_PROCFS_H if test "$ac_cv_header_sys_procfs_h" = yes; then BFD_HAVE_SYS_PROCFS_TYPE(gregset_t) BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t) BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t) BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t) BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t) BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t) BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t) BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t) fi ])