2 # Process this file with autoconf to produce a configure script.
4 AC_INIT(package-unused, version-unused, libsanitizer)
5 AC_CONFIG_SRCDIR([include/sanitizer/common_interface_defs.h])
7 AM_ENABLE_MULTILIB(, ..)
9 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
10 AC_ARG_ENABLE(version-specific-runtime-libs,
11 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
13 yes) version_specific_libs=yes ;;
14 no) version_specific_libs=no ;;
15 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
17 [version_specific_libs=no])
18 AC_MSG_RESULT($version_specific_libs)
20 AC_USE_SYSTEM_EXTENSIONS
22 # Do not delete or change the following two lines. For why, see
23 # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
25 target_alias=${target_alias-$host_alias}
26 AC_SUBST(target_alias)
27 GCC_LIBSTDCXX_RAW_CXX_FLAGS
29 AM_INIT_AUTOMAKE(foreign no-dist)
32 GCC_WITH_TOOLEXECLIBDIR
34 # Calculate toolexeclibdir
35 # Also toolexecdir, though it's only used in toolexeclibdir
36 case ${version_specific_libs} in
38 # Need the gcc compiler version to know where to install libraries
39 # and header files if --enable-version-specific-runtime-libs option
41 toolexecdir='$(libdir)/gcc/$(target_alias)'
42 toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
45 if test -n "$with_cross_host" &&
46 test x"$with_cross_host" != x"no"; then
47 # Install a library built with a cross compiler in tooldir, not libdir.
48 toolexecdir='$(exec_prefix)/$(target_alias)'
49 case ${with_toolexeclibdir} in
51 toolexeclibdir='$(toolexecdir)/lib'
54 toolexeclibdir=${with_toolexeclibdir}
58 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
59 toolexeclibdir='$(libdir)'
61 multi_os_directory=`$CC -print-multi-os-directory`
62 case $multi_os_directory in
63 .) ;; # Avoid trailing /.
64 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
69 AC_SUBST(toolexeclibdir)
71 # Checks for programs.
82 "") AC_MSG_ERROR([can't build without awk]) ;;
85 AC_SUBST(enable_shared)
86 AC_SUBST(enable_static)
88 AC_CHECK_SIZEOF([void *])
90 if test "${multilib}" = "yes"; then
91 multilib_arg="--enable-multilib"
96 # Get target configury.
99 unset HWASAN_SUPPORTED
100 . ${srcdir}/configure.tgt
101 AM_CONDITIONAL(TSAN_SUPPORTED, [test "x$TSAN_SUPPORTED" = "xyes"])
102 AM_CONDITIONAL(LSAN_SUPPORTED, [test "x$LSAN_SUPPORTED" = "xyes"])
103 AM_CONDITIONAL(HWASAN_SUPPORTED, [test "x$HWASAN_SUPPORTED" = "xyes"])
105 # Check for functions needed.
106 AC_CHECK_FUNCS(clock_getres clock_gettime clock_settime lstat readlink)
108 # Common libraries that we need to link against for all sanitizer libs.
109 link_sanitizer_common='-lpthread -lm'
111 # At least for glibc, shm_open is in librt. But don't pull that
112 # in if it still doesn't give us the function we want. This
113 # test is copied from libgomp.
114 AC_CHECK_LIB(rt, shm_open,
115 [link_sanitizer_common="-lrt $link_sanitizer_common"])
117 # Do a configure time check for -ldl
118 AC_CHECK_LIB(dl, dlsym,
119 [link_sanitizer_common="-ldl $link_sanitizer_common"])
121 # Set up the set of additional libraries that we need to link against for libasan.
122 link_libasan=$link_sanitizer_common
123 AC_SUBST(link_libasan)
125 # Set up the set of additional libraries that we need to link against for libhwasan.
126 link_libhwasan=$link_sanitizer_common
127 AC_SUBST(link_libhwasan)
129 # Set up the set of additional libraries that we need to link against for libtsan.
130 link_libtsan=$link_sanitizer_common
131 AC_SUBST(link_libtsan)
133 # Set up the set of additional libraries that we need to link against for libubsan.
134 link_libubsan=$link_sanitizer_common
135 AC_SUBST(link_libubsan)
137 # Set up the set of additional libraries that we need to link against for liblsan.
138 link_liblsan=$link_sanitizer_common
139 AC_SUBST(link_liblsan)
142 # At least for glibc, clock_gettime is in librt. But don't pull that
143 # in if it still doesn't give us the function we want. This
144 # test is copied from libgomp.
145 AC_CHECK_LIB(rt, clock_gettime,
146 [link_libasan="-lrt $link_libasan"
147 link_libtsan="-lrt $link_libtsan"
148 # Other sanitizers do not override clock_* API
152 *-*-darwin*) MAC_INTERPOSE=true ; enable_static=no ;;
153 *) MAC_INTERPOSE=false ;;
155 AM_CONDITIONAL(USING_MAC_INTERPOSE, $MAC_INTERPOSE)
157 backtrace_supported=yes
159 AC_MSG_CHECKING([for necessary platform features])
162 # Some old Linux distributions miss required syscalls.
163 sanitizer_supported=no
164 AC_TRY_COMPILE([#include <sys/syscall.h>
165 #include <unistd.h>],[
166 syscall (__NR_gettid);
167 syscall (__NR_futex);
168 syscall (__NR_exit_group);
169 ], [sanitizer_supported=yes])
172 sanitizer_supported=yes
175 AC_MSG_RESULT($sanitizer_supported)
176 AM_CONDITIONAL(SANITIZER_SUPPORTED, test "$sanitizer_supported" = yes)
178 # Test for __sync support.
179 AC_CACHE_CHECK([__sync extensions],
180 [libsanitizer_cv_sys_sync],
181 [if test -n "${with_target_subdir}"; then
182 libsanitizer_cv_sys_sync=yes
185 [AC_LANG_PROGRAM([int i;],
186 [__sync_bool_compare_and_swap (&i, i, i);
187 __sync_lock_test_and_set (&i, 1);
188 __sync_lock_release (&i);])],
189 [libsanitizer_cv_sys_sync=yes],
190 [libsanitizer_cv_sys_sync=no])
192 if test "$libsanitizer_cv_sys_sync" = "yes"; then
193 AC_DEFINE([HAVE_SYNC_FUNCTIONS], 1,
194 [Define to 1 if you have the __sync functions])
197 # Test for __atomic support.
198 AC_CACHE_CHECK([__atomic extensions],
199 [libsanitizer_cv_sys_atomic],
200 [if test -n "${with_target_subdir}"; then
201 libsanitizer_cv_sys_atomic=yes
204 [AC_LANG_PROGRAM([int i;],
205 [__atomic_load_n (&i, __ATOMIC_ACQUIRE);
206 __atomic_store_n (&i, 1, __ATOMIC_RELEASE);])],
207 [libsanitizer_cv_sys_atomic=yes],
208 [libsanitizer_cv_sys_atomic=no])
210 if test "$libsanitizer_cv_sys_atomic" = "yes"; then
211 AC_DEFINE([HAVE_ATOMIC_FUNCTIONS], 1,
212 [Define to 1 if you have the __atomic functions])
215 # The library needs to be able to read the executable itself. Compile
216 # a file to determine the executable format. The awk script
217 # filetype.awk prints out the file type.
218 AC_CACHE_CHECK([output filetype],
219 [libsanitizer_cv_sys_filetype],
222 [AC_LANG_PROGRAM([int i;], [int j;])],
223 [filetype=`${AWK} -f $srcdir/../libbacktrace/filetype.awk conftest.$ac_objext`],
224 [AC_MSG_FAILURE([compiler failed])])
225 libsanitizer_cv_sys_filetype=$filetype])
227 # Match the file type to decide what files to compile.
229 case "$libsanitizer_cv_sys_filetype" in
230 elf*) FORMAT_FILE="elf.lo" ;;
231 *) AC_MSG_WARN([could not determine output file type])
232 FORMAT_FILE="unknown.lo"
233 backtrace_supported=no
236 AC_SUBST(FORMAT_FILE)
240 case "$libsanitizer_cv_sys_filetype" in
244 AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64])
246 BACKTRACE_SUPPORTED=0
247 if test "$backtrace_supported" = "yes"; then
248 BACKTRACE_SUPPORTED=1
250 AC_SUBST(BACKTRACE_SUPPORTED)
252 GCC_HEADER_STDINT(gstdint.h)
254 AC_CHECK_HEADERS(sys/mman.h alloca.h)
255 if test "$ac_cv_header_sys_mman_h" = "no"; then
258 if test -n "${with_target_subdir}"; then
259 # When built as a GCC target library, we can't do a link test. We
260 # simply assume that if we have mman.h, we have mmap.
263 AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no])
266 if test "$have_mmap" = "no"; then
271 AC_PREPROC_IFELSE([AC_LANG_SOURCE([
272 #include <sys/mman.h>
273 #if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
274 #error no MAP_ANONYMOUS
276 ])], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
281 BACKTRACE_USES_MALLOC=0
282 if test "$ALLOC_FILE" = "alloc.lo"; then
283 BACKTRACE_USES_MALLOC=1
285 AC_SUBST(BACKTRACE_USES_MALLOC)
287 # Don't care about thread support
288 BACKTRACE_SUPPORTS_THREADS=0
289 AC_SUBST(BACKTRACE_SUPPORTS_THREADS)
291 # Check for dl_iterate_phdr.
292 AC_CHECK_HEADERS(link.h)
293 if test "$ac_cv_header_link_h" = "no"; then
294 have_dl_iterate_phdr=no
296 # When built as a GCC target library, we can't do a link test.
297 AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes],
298 [have_dl_iterate_phdr=no])
300 if test "$have_dl_iterate_phdr" = "yes"; then
301 AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.])
304 # Check for the fcntl function.
305 if test -n "${with_target_subdir}"; then
307 *-*-mingw*) have_fcntl=no ;;
311 AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no])
313 if test "$have_fcntl" = "yes"; then
314 AC_DEFINE([HAVE_FCNTL], 1,
315 [Define to 1 if you have the fcntl function])
318 AC_CHECK_DECLS(strnlen)
320 # Check for getexecname function.
321 if test -n "${with_target_subdir}"; then
323 *-*-solaris2*) have_getexecname=yes ;;
324 *) have_getexecname=no ;;
327 AC_CHECK_FUNC(getexecname, [have_getexecname=yes], [have_getexecname=no])
329 if test "$have_getexecname" = "yes"; then
330 AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.])
333 # Check for rpc/xdr.h
334 AC_CHECK_HEADERS(rpc/xdr.h)
335 if test x"$ac_cv_header_rpc_xdr_h" = xyes; then
336 rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=1"
338 rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=0"
341 # Check for tirpc/rpc/xdr.h
342 AC_CHECK_HEADERS(tirpc/rpc/xdr.h)
343 if test x"$ac_cv_header_tirpc_rpc_xdr_h" = xyes; then
344 rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=1"
346 rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=0"
349 AC_SUBST([RPC_DEFS], [$rpc_defs])
351 AM_CONDITIONAL(LIBBACKTRACE_SUPPORTED,
352 [test "x${BACKTRACE_SUPPORTED}x${BACKTRACE_USES_MALLOC}" = "x1x0"])
354 AH_BOTTOM([#include "libbacktrace/backtrace-rename.h"])
355 AC_CONFIG_FILES([Makefile libsanitizer.spec libbacktrace/backtrace-supported.h])
356 AC_CONFIG_HEADER(config.h)
358 AC_CONFIG_FILES(AC_FOREACH([DIR], [interception sanitizer_common libbacktrace lsan asan ubsan], [DIR/Makefile ]),
359 [cat > vpsed$$ << \_EOF
360 s!`test -f '$<' || echo '$(srcdir)/'`!!
362 sed -f vpsed$$ $ac_file > tmp$$
365 echo 'MULTISUBDIR =' >> $ac_file
367 . ${multi_basedir}/config-ml.in
368 AS_UNSET([ml_norecursion])
371 if test "x$TSAN_SUPPORTED" = "xyes"; then
372 AC_CONFIG_FILES(AC_FOREACH([DIR], [tsan], [DIR/Makefile ]),
373 [cat > vpsed$$ << \_EOF
374 s!`test -f '$<' || echo '$(srcdir)/'`!!
376 sed -f vpsed$$ $ac_file > tmp$$
379 echo 'MULTISUBDIR =' >> $ac_file
381 . ${multi_basedir}/config-ml.in
382 AS_UNSET([ml_norecursion])
386 if test "x$HWASAN_SUPPORTED" = "xyes"; then
387 AC_CONFIG_FILES(AC_FOREACH([DIR], [hwasan], [DIR/Makefile ]),
388 [cat > vpsed$$ << \_EOF
389 s!`test -f '$<' || echo '$(srcdir)/'`!!
391 sed -f vpsed$$ $ac_file > tmp$$
394 echo 'MULTISUBDIR =' >> $ac_file
396 . ${multi_basedir}/config-ml.in
397 AS_UNSET([ml_norecursion])
401 AC_SUBST([TSAN_TARGET_DEPENDENT_OBJECTS])
402 AC_SUBST([SANITIZER_COMMON_TARGET_DEPENDENT_OBJECTS])
404 AC_ARG_ENABLE([werror],
405 [AS_HELP_STRING([--disable-werror], [disable building with -Werror])])
407 ACX_PROG_CC_WARNING_OPTS([-Wextra -Wall -Wwrite-strings \
408 -Wmissing-format-attribute -Wcast-qual],
410 AS_IF([test "x$enable_werror" != "xno"],
411 [WARN_FLAGS="$WARN_FLAGS -Werror"])
412 AC_SUBST([WARN_FLAGS])
414 # Determine what GCC version number to use in filesystem paths.
417 # Add CET specific flags if Intel CET is enabled.
418 GCC_CET_FLAGS(CET_FLAGS)
420 # Always set -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 to sync with LLVM,
421 # and keep struct *stat* have the same size.
423 mips*-*) FILE64_FLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" ;;
424 *) FILE64_FLAGS="" ;;
427 EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS $FILE64_FLAGS"
428 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $CET_FLAGS $FILE64_FLAGS"
429 EXTRA_ASFLAGS=$CET_FLAGS
430 AC_SUBST(EXTRA_ASFLAGS)
431 AC_SUBST(EXTRA_CFLAGS)
432 AC_SUBST(EXTRA_CXXFLAGS)