Retro68/gcc/libsanitizer/configure.ac
2017-04-10 13:32:00 +02:00

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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ([2.64])
AC_INIT(package-unused, version-unused, libsanitizer)
AC_CONFIG_SRCDIR([include/sanitizer/common_interface_defs.h])
AM_ENABLE_MULTILIB(, ..)
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
AC_ARG_ENABLE(version-specific-runtime-libs,
[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
[case "$enableval" in
yes) version_specific_libs=yes ;;
no) version_specific_libs=no ;;
*) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
esac],
[version_specific_libs=no])
AC_MSG_RESULT($version_specific_libs)
AC_USE_SYSTEM_EXTENSIONS
# Do not delete or change the following two lines. For why, see
# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
AC_CANONICAL_SYSTEM
target_alias=${target_alias-$host_alias}
AC_SUBST(target_alias)
GCC_LIBSTDCXX_RAW_CXX_FLAGS
AM_INIT_AUTOMAKE(foreign no-dist)
AM_MAINTAINER_MODE
# Calculate toolexeclibdir
# Also toolexecdir, though it's only used in toolexeclibdir
case ${version_specific_libs} in
yes)
# Need the gcc compiler version to know where to install libraries
# and header files if --enable-version-specific-runtime-libs option
# is selected.
toolexecdir='$(libdir)/gcc/$(target_alias)'
toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
;;
no)
if test -n "$with_cross_host" &&
test x"$with_cross_host" != x"no"; then
# Install a library built with a cross compiler in tooldir, not libdir.
toolexecdir='$(exec_prefix)/$(target_alias)'
toolexeclibdir='$(toolexecdir)/lib'
else
toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
toolexeclibdir='$(libdir)'
fi
multi_os_directory=`$CC -print-multi-os-directory`
case $multi_os_directory in
.) ;; # Avoid trailing /.
*) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
esac
;;
esac
AC_SUBST(toolexecdir)
AC_SUBST(toolexeclibdir)
# Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AM_PROG_AS
AC_PROG_RANLIB
AC_LIBTOOL_DLOPEN
AM_PROG_LIBTOOL
AC_PROG_AWK
case "$AWK" in
"") AC_MSG_ERROR([can't build without awk]) ;;
esac
AC_SUBST(enable_shared)
AC_SUBST(enable_static)
AC_CHECK_SIZEOF([void *])
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
else
multilib_arg=
fi
# Get target configury.
unset TSAN_SUPPORTED
unset LSAN_SUPPORTED
. ${srcdir}/configure.tgt
AM_CONDITIONAL(TSAN_SUPPORTED, [test "x$TSAN_SUPPORTED" = "xyes"])
AM_CONDITIONAL(LSAN_SUPPORTED, [test "x$LSAN_SUPPORTED" = "xyes"])
# Check for functions needed.
AC_CHECK_FUNCS(clock_getres clock_gettime clock_settime)
# Common libraries that we need to link against for all sanitizer libs.
link_sanitizer_common='-lpthread -lm'
# At least for glibc, shm_open 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.
AC_CHECK_LIB(rt, shm_open,
[link_sanitizer_common="-lrt $link_sanitizer_common"])
# Do a configure time check for -ldl
AC_CHECK_LIB(dl, dlsym,
[link_sanitizer_common="-ldl $link_sanitizer_common"])
# Set up the set of additional libraries that we need to link against for libasan.
link_libasan=$link_sanitizer_common
AC_SUBST(link_libasan)
# Set up the set of additional libraries that we need to link against for libtsan.
link_libtsan=$link_sanitizer_common
AC_SUBST(link_libtsan)
# Set up the set of additional libraries that we need to link against for libubsan.
link_libubsan=$link_sanitizer_common
AC_SUBST(link_libubsan)
# Set up the set of additional libraries that we need to link against for liblsan.
link_liblsan=$link_sanitizer_common
AC_SUBST(link_liblsan)
# 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.
AC_CHECK_LIB(rt, clock_gettime,
[link_libasan="-lrt $link_libasan"
link_libtsan="-lrt $link_libtsan"
# Other sanitizers do not override clock_* API
])
case "$host" in
*-*-darwin*) MAC_INTERPOSE=true ; enable_static=no ;;
*) MAC_INTERPOSE=false ;;
esac
AM_CONDITIONAL(USING_MAC_INTERPOSE, $MAC_INTERPOSE)
backtrace_supported=yes
AC_MSG_CHECKING([for necessary platform features])
case "$target" in
*-*-linux*)
# Some old Linux distributions miss required syscalls.
sanitizer_supported=no
AC_TRY_COMPILE([#include <sys/syscall.h>],[
syscall (__NR_gettid);
syscall (__NR_futex);
syscall (__NR_exit_group);
], [sanitizer_supported=yes])
;;
*)
sanitizer_supported=yes
;;
esac
AC_MSG_RESULT($sanitizer_supported)
AM_CONDITIONAL(SANITIZER_SUPPORTED, test "$sanitizer_supported" = yes)
# Test for __sync support.
AC_CACHE_CHECK([__sync extensions],
[libsanitizer_cv_sys_sync],
[if test -n "${with_target_subdir}"; then
libsanitizer_cv_sys_sync=yes
else
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([int i;],
[__sync_bool_compare_and_swap (&i, i, i);
__sync_lock_test_and_set (&i, 1);
__sync_lock_release (&i);])],
[libsanitizer_cv_sys_sync=yes],
[libsanitizer_cv_sys_sync=no])
fi])
if test "$libsanitizer_cv_sys_sync" = "yes"; then
AC_DEFINE([HAVE_SYNC_FUNCTIONS], 1,
[Define to 1 if you have the __sync functions])
fi
# Test for __atomic support.
AC_CACHE_CHECK([__atomic extensions],
[libsanitizer_cv_sys_atomic],
[if test -n "${with_target_subdir}"; then
libsanitizer_cv_sys_atomic=yes
else
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([int i;],
[__atomic_load_n (&i, __ATOMIC_ACQUIRE);
__atomic_store_n (&i, 1, __ATOMIC_RELEASE);])],
[libsanitizer_cv_sys_atomic=yes],
[libsanitizer_cv_sys_atomic=no])
fi])
if test "$libsanitizer_cv_sys_atomic" = "yes"; then
AC_DEFINE([HAVE_ATOMIC_FUNCTIONS], 1,
[Define to 1 if you have the __atomic functions])
fi
# The library needs to be able to read the executable itself. Compile
# a file to determine the executable format. The awk script
# filetype.awk prints out the file type.
AC_CACHE_CHECK([output filetype],
[libsanitizer_cv_sys_filetype],
[filetype=
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([int i;], [int j;])],
[filetype=`${AWK} -f $srcdir/../libbacktrace/filetype.awk conftest.$ac_objext`],
[AC_MSG_FAILURE([compiler failed])])
libsanitizer_cv_sys_filetype=$filetype])
# Match the file type to decide what files to compile.
FORMAT_FILE=
case "$libsanitizer_cv_sys_filetype" in
elf*) FORMAT_FILE="elf.lo" ;;
*) AC_MSG_WARN([could not determine output file type])
FORMAT_FILE="unknown.lo"
backtrace_supported=no
;;
esac
AC_SUBST(FORMAT_FILE)
# ELF defines.
elfsize=
case "$libsanitizer_cv_sys_filetype" in
elf32) elfsize=32 ;;
elf64) elfsize=64 ;;
esac
AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64])
BACKTRACE_SUPPORTED=0
if test "$backtrace_supported" = "yes"; then
BACKTRACE_SUPPORTED=1
fi
AC_SUBST(BACKTRACE_SUPPORTED)
GCC_HEADER_STDINT(gstdint.h)
AC_CHECK_HEADERS(sys/mman.h alloca.h)
if test "$ac_cv_header_sys_mman_h" = "no"; then
have_mmap=no
else
if test -n "${with_target_subdir}"; then
# When built as a GCC target library, we can't do a link test. We
# simply assume that if we have mman.h, we have mmap.
have_mmap=yes
else
AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no])
fi
fi
if test "$have_mmap" = "no"; then
VIEW_FILE=read.lo
ALLOC_FILE=alloc.lo
else
VIEW_FILE=mmapio.lo
AC_PREPROC_IFELSE([
#include <sys/mman.h>
#if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
#error no MAP_ANONYMOUS
#endif
], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
fi
AC_SUBST(VIEW_FILE)
AC_SUBST(ALLOC_FILE)
BACKTRACE_USES_MALLOC=0
if test "$ALLOC_FILE" = "alloc.lo"; then
BACKTRACE_USES_MALLOC=1
fi
AC_SUBST(BACKTRACE_USES_MALLOC)
# Don't care about thread support
BACKTRACE_SUPPORTS_THREADS=0
AC_SUBST(BACKTRACE_SUPPORTS_THREADS)
# Check for dl_iterate_phdr.
AC_CHECK_HEADERS(link.h)
if test "$ac_cv_header_link_h" = "no"; then
have_dl_iterate_phdr=no
else
# 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 "${host}" in
*-*-solaris2.10*)
# Avoid dl_iterate_phdr on Solaris 10, where it is in the
# header file but is only in -ldl.
have_dl_iterate_phdr=no ;;
esac
fi
if test "$have_dl_iterate_phdr" = "yes"; then
AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.])
fi
# Check for the fcntl function.
if test -n "${with_target_subdir}"; then
case "${host}" in
*-*-mingw*) have_fcntl=no ;;
*) have_fcntl=yes ;;
esac
else
AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no])
fi
if test "$have_fcntl" = "yes"; then
AC_DEFINE([HAVE_FCNTL], 1,
[Define to 1 if you have the fcntl function])
fi
AC_CHECK_DECLS(strnlen)
# Check for getexecname function.
if test -n "${with_target_subdir}"; then
case "${host}" in
*-*-solaris2*) have_getexecname=yes ;;
*) have_getexecname=no ;;
esac
else
AC_CHECK_FUNC(getexecname, [have_getexecname=yes], [have_getexecname=no])
fi
if test "$have_getexecname" = "yes"; then
AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.])
fi
# Check for rpc/xdr.h
AC_CHECK_HEADERS(rpc/xdr.h)
if test x"$ac_cv_header_rpc_xdr_h" = xyes; then
rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=1"
else
rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=0"
fi
# Check for tirpc/rpc/xdr.h
AC_CHECK_HEADERS(tirpc/rpc/xdr.h)
if test x"$ac_cv_header_tirpc_rpc_xdr_h" = xyes; then
rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=1"
else
rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=0"
fi
AC_SUBST([RPC_DEFS], [$rpc_defs])
dnl If this file is processed by autoconf-2.67 or later then the CPPFLAGS
dnl "-o conftest.iii" can disappear, conftest.iii be replaced with
dnl conftest.i in the sed command line, and the rm deleted.
dnl Not all cpp's accept -o, and gcc -E does not accept a second file
dnl argument as the output file.
AC_CACHE_CHECK([obstack params],
[libsanitizer_cv_sys_obstack],
[save_cppflags=$CPPFLAGS
CPPFLAGS="-I${srcdir}/../include -o conftest.iii $CPPFLAGS"
AC_PREPROC_IFELSE([AC_LANG_SOURCE([
#include "obstack.h"
#ifdef _OBSTACK_SIZE_T
_OBSTACK_SIZE_T
#else
int
#endif
])],
[libsanitizer_cv_sys_obstack=`sed -e '/^#/d;/^[ ]*$/d' conftest.iii | sed -e '$!d;s/size_t/SIZE_T/'`],
[libsanitizer_cv_sys_obstack=int])
CPPFLAGS=$save_cppflags
rm -f conftest.iii
])
AC_SUBST([OBSTACK_DEFS], [-D_OBSTACK_SIZE_T=\"$libsanitizer_cv_sys_obstack\"])
AM_CONDITIONAL(LIBBACKTRACE_SUPPORTED,
[test "x${BACKTRACE_SUPPORTED}x${BACKTRACE_USES_MALLOC}" = "x1x0"])
AH_BOTTOM([#include "libbacktrace/backtrace-rename.h"])
AC_CONFIG_FILES([Makefile libsanitizer.spec libbacktrace/backtrace-supported.h])
AC_CONFIG_HEADER(config.h)
AC_CONFIG_FILES(AC_FOREACH([DIR], [interception sanitizer_common libbacktrace lsan asan ubsan], [DIR/Makefile ]),
[cat > vpsed$$ << \_EOF
s!`test -f '$<' || echo '$(srcdir)/'`!!
_EOF
sed -f vpsed$$ $ac_file > tmp$$
mv tmp$$ $ac_file
rm vpsed$$
echo 'MULTISUBDIR =' >> $ac_file
ml_norecursion=yes
. ${multi_basedir}/config-ml.in
AS_UNSET([ml_norecursion])
])
if test "x$TSAN_SUPPORTED" = "xyes"; then
AC_CONFIG_FILES(AC_FOREACH([DIR], [tsan], [DIR/Makefile ]),
[cat > vpsed$$ << \_EOF
s!`test -f '$<' || echo '$(srcdir)/'`!!
_EOF
sed -f vpsed$$ $ac_file > tmp$$
mv tmp$$ $ac_file
rm vpsed$$
echo 'MULTISUBDIR =' >> $ac_file
ml_norecursion=yes
. ${multi_basedir}/config-ml.in
AS_UNSET([ml_norecursion])
])
fi
AC_SUBST([TSAN_TARGET_DEPENDENT_OBJECTS])
AC_OUTPUT