# configure.ac -- Backtrace configure script.
-# Copyright (C) 2012-2017 Free Software Foundation, Inc.
+# Copyright (C) 2012-2020 Free Software Foundation, Inc.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
-AC_PREREQ(2.64)
AC_INIT(package-unused, version-unused,, libbacktrace)
AC_CONFIG_SRCDIR(backtrace.h)
AC_CONFIG_HEADER(config.h)
"") AC_MSG_ERROR([can't build without awk]) ;;
esac
+AC_CHECK_PROG(DWZ, dwz, dwz)
+AM_CONDITIONAL(HAVE_DWZ, test "$DWZ" != "")
+
LT_INIT
AM_PROG_LIBTOOL
EXTRA_FLAGS="$EXTRA_FLAGS -frandom-seed=\$@"
fi
fi
+
+if test -n "${with_target_subdir}"; then
+ # Add CET specific flags is Intel CET is enabled.
+ GCC_CET_FLAGS(CET_FLAGS)
+ EXTRA_FLAGS="$EXTRA_FLAGS $CET_FLAGS"
+fi
AC_SUBST(EXTRA_FLAGS)
ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
[PIC_FLAG=-fPIC], [PIC_FLAG=])
AC_SUBST(PIC_FLAG)
+# Enable Intel CET on Intel CET enabled host if jit is enabled.
+GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
+case x$enable_languages in
+*jit*)
+ ;;
+*)
+ CET_HOST_FLAGS=
+ ;;
+esac
+AC_SUBST(CET_HOST_FLAGS)
+
# Test for __sync support.
AC_CACHE_CHECK([__sync extensions],
[libbacktrace_cv_sys_sync],
backtrace_supports_data=yes
case "$libbacktrace_cv_sys_filetype" in
elf*) FORMAT_FILE="elf.lo" ;;
+macho) FORMAT_FILE="macho.lo" ;;
pecoff) FORMAT_FILE="pecoff.lo"
backtrace_supports_data=no
;;
*) elfsize=unused
esac
AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64])
+AM_CONDITIONAL(HAVE_ELF, test "$FORMAT_FILE" = "elf.lo")
# XCOFF defines.
xcoffsize=
# simply assume that if we have mman.h, we have mmap.
have_mmap=yes
case "${host}" in
- spu-*-*|*-*-msdosdjgpp)
- # The SPU does not have mmap, but it has a sys/mman.h header file
- # containing "mmap_eaddr" and the mmap flags, confusing the test.
- # DJGPP also has sys/man.h, but no mmap
+ *-*-msdosdjgpp)
+ # DJGPP has sys/man.h, but no mmap
have_mmap=no ;;
esac
else
ALLOC_FILE=alloc.lo
else
VIEW_FILE=mmapio.lo
- AC_PREPROC_IFELSE([
+ AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#include <sys/mman.h>
#if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
#error no MAP_ANONYMOUS
#endif
-], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
+])], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
fi
AC_SUBST(VIEW_FILE)
AC_SUBST(ALLOC_FILE)
# When built as a GCC target library, we can't do a link test.
AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes],
[have_dl_iterate_phdr=no])
- case "${host}" in
- *-*-solaris2.10*)
- # Avoid dl_iterate_phdr on Solaris 10, where it is in the
- # header file but is only in -ldl.
- have_dl_iterate_phdr=no ;;
- esac
else
AC_CHECK_FUNC([dl_iterate_phdr], [have_dl_iterate_phdr=yes],
[have_dl_iterate_phdr=no])
AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.])
fi
+# Check for header file for Mach-O image functions.
+AC_CHECK_HEADERS(mach-o/dyld.h)
+
# Check for loadquery.
AC_CHECK_HEADERS(sys/ldr.h)
if test "$ac_cv_header_sys_ldr_h" = "no"; then
if test -n "${with_target_subdir}"; then
case "${host}" in
*-*-mingw*) have_fcntl=no ;;
- spu-*-*) have_fcntl=no ;;
*) have_fcntl=yes ;;
esac
else
[Define to 1 if you have the fcntl function])
fi
-AC_CHECK_DECLS(strnlen)
+AC_CHECK_DECLS([strnlen, getpagesize])
AC_CHECK_FUNCS(lstat readlink)
# Check for getexecname function.
AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.])
fi
+# Check for sysctl definitions.
+
+AC_CACHE_CHECK([for KERN_PROC],
+[libbacktrace_cv_proc],
+[AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([
+#include <sys/types.h>
+#include <sys/sysctl.h>
+], [int mib0 = CTL_KERN; int mib1 = KERN_PROC; int mib2 = KERN_PROC_PATHNAME;])],
+ [libbacktrace_cv_proc=yes],
+ [libbacktrace_cv_proc=no])])
+if test "$libbacktrace_cv_proc" = "yes"; then
+ AC_DEFINE([HAVE_KERN_PROC], 1,
+ [Define to 1 if you have KERN_PROC and KERN_PROC_PATHNAME in <sys/sysctl.h>.])
+fi
+
+AC_CACHE_CHECK([for KERN_PROG_ARGS],
+[libbacktrace_cv_procargs],
+[AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([
+#include <sys/types.h>
+#include <sys/sysctl.h>
+], [int mib0 = CTL_KERN; int mib1 = KERN_PROC_ARGS; int mib2 = KERN_PROC_PATHNAME;])],
+ [libbacktrace_cv_procargs=yes],
+ [libbacktrace_cv_procargs=no])])
+if test "$libbacktrace_cv_procargs" = "yes"; then
+ AC_DEFINE([HAVE_KERN_PROC_ARGS], 1,
+ [Define to 1 if you have KERN_PROCARGS and KERN_PROC_PATHNAME in <sys/sysctl.h>.])
+fi
+
+# Check for the clock_gettime function.
+AC_CHECK_FUNCS(clock_gettime)
+clock_gettime_link=
+# At least for glibc, clock_gettime is in librt. But don't
+# pull that in if it still doesn't give us the function we want. This
+# test is copied from libgomp, and modified to not link in -lrt as
+# we're using this for test timing only.
+if test "$ac_cv_func_clock_gettime" = no; then
+ AC_CHECK_LIB(rt, clock_gettime,
+ [CLOCK_GETTIME_LINK=-lrt
+ AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
+ [Define to 1 if you have the `clock_gettime' function.])])
+fi
+AC_SUBST(CLOCK_GETTIME_LINK)
+
dnl Test whether the compiler supports the -pthread option.
AC_CACHE_CHECK([whether -pthread is supported],
[libgo_cv_lib_pthread],
[CFLAGS_hold=$CFLAGS
CFLAGS="$CFLAGS -pthread"
-AC_COMPILE_IFELSE([[int i;]],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
[libgo_cv_lib_pthread=yes],
[libgo_cv_lib_pthread=no])
CFLAGS=$CFLAGS_hold])
AM_CONDITIONAL(HAVE_PTHREAD, test "$libgo_cv_lib_pthread" = yes)
+dnl Test whether the compiler supports the -gdwarf-5 option.
+AC_CACHE_CHECK([whether -gdwarf-5 is supported],
+[libbacktrace_cv_lib_dwarf5],
+[CFLAGS_hold=$CFLAGS
+CFLAGS="$CFLAGS -gdwarf-5"
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
+[libbacktrace_cv_lib_dwarf5=yes],
+[libbacktrace_cv_lib_dwarf5=no])
+CFLAGS=$CFLAGS_hold])
+AM_CONDITIONAL(HAVE_DWARF5, test "$libbacktrace_cv_lib_dwarf5" = yes)
+
+AC_CHECK_LIB([z], [compress],
+ [AC_DEFINE(HAVE_ZLIB, 1, [Define if -lz is available.])])
+AM_CONDITIONAL(HAVE_ZLIB, test "$ac_cv_lib_z_compress" = yes)
+
+dnl Test whether the linker supports the --compress_debug_sections option.
+AC_CACHE_CHECK([whether --compress-debug-sections is supported],
+[libgo_cv_ld_compress],
+[LDFLAGS_hold=$LDFLAGS
+LDFLAGS="$LDFLAGS -Wl,--compress-debug-sections=zlib-gnu"
+AC_LINK_IFELSE([AC_LANG_PROGRAM(,)],
+[libgo_cv_ld_compress=yes],
+[libgo_cv_ld_compress=no])
+LDFLAGS=$LDFLAGS_hold])
+AM_CONDITIONAL(HAVE_COMPRESSED_DEBUG, test "$libgo_cv_ld_compress" = yes)
+
AC_ARG_VAR(OBJCOPY, [location of objcopy])
AC_CHECK_PROG(OBJCOPY, objcopy, objcopy,)
+AC_CHECK_PROG(READELF, readelf, readelf)
AC_CACHE_CHECK([whether objcopy supports debuglink],
[libbacktrace_cv_objcopy_debuglink],
[if test -n "${with_target_subdir}"; then
libbacktrace_cv_objcopy_debuglink=no
+elif ! test -n "${OBJCOPY}"; then
+ libbacktrace_cv_objcopy_debuglink=no
elif ${OBJCOPY} --add-gnu-debuglink=x /bin/ls /tmp/ls$$; then
rm -f /tmp/ls$$
libbacktrace_cv_objcopy_debuglink=yes
fi])
AM_CONDITIONAL(HAVE_OBJCOPY_DEBUGLINK, test "$libbacktrace_cv_objcopy_debuglink" = yes)
+AC_ARG_VAR(DSYMUTIL, [location of dsymutil])
+AC_CHECK_PROG(DSYMUTIL, dsymutil, dsymutil)
+AM_CONDITIONAL(HAVE_DSYMUTIL, test -n "${DSYMUTIL}")
+
AC_CACHE_CHECK([whether tests can run],
[libbacktrace_cv_sys_native],
[AC_RUN_IFELSE([AC_LANG_PROGRAM([], [return 0;])],
fi
AC_CONFIG_FILES(Makefile backtrace-supported.h)
+AC_CONFIG_FILES(install-debuginfo-for-buildid.sh, chmod +x install-debuginfo-for-buildid.sh)
# We need multilib support, but only if configuring for the target.
AC_CONFIG_COMMANDS([default],
projects / gcc.git / blobdiff