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 . ${srcdir}/configure.tgt
100 AM_CONDITIONAL(TSAN_SUPPORTED, [test "x$TSAN_SUPPORTED" = "xyes"])
101 AM_CONDITIONAL(LSAN_SUPPORTED, [test "x$LSAN_SUPPORTED" = "xyes"])
103 # Check for functions needed.
104 AC_CHECK_FUNCS(clock_getres clock_gettime clock_settime lstat readlink)
106 # Common libraries that we need to link against for all sanitizer libs.
107 link_sanitizer_common='-lpthread -lm'
109 # At least for glibc, shm_open is in librt. But don't pull that
110 # in if it still doesn't give us the function we want. This
111 # test is copied from libgomp.
112 AC_CHECK_LIB(rt, shm_open,
113 [link_sanitizer_common="-lrt $link_sanitizer_common"])
115 # Do a configure time check for -ldl
116 AC_CHECK_LIB(dl, dlsym,
117 [link_sanitizer_common="-ldl $link_sanitizer_common"])
119 # Set up the set of additional libraries that we need to link against for libasan.
120 link_libasan=$link_sanitizer_common
121 AC_SUBST(link_libasan)
123 # Set up the set of additional libraries that we need to link against for libtsan.
124 link_libtsan=$link_sanitizer_common
125 AC_SUBST(link_libtsan)
127 # Set up the set of additional libraries that we need to link against for libubsan.
128 link_libubsan=$link_sanitizer_common
129 AC_SUBST(link_libubsan)
131 # Set up the set of additional libraries that we need to link against for liblsan.
132 link_liblsan=$link_sanitizer_common
133 AC_SUBST(link_liblsan)
136 # At least for glibc, clock_gettime is in librt. But don't pull that
137 # in if it still doesn't give us the function we want. This
138 # test is copied from libgomp.
139 AC_CHECK_LIB(rt, clock_gettime,
140 [link_libasan="-lrt $link_libasan"
141 link_libtsan="-lrt $link_libtsan"
142 # Other sanitizers do not override clock_* API
146 *-*-darwin*) MAC_INTERPOSE=true ; enable_static=no ;;
147 *) MAC_INTERPOSE=false ;;
149 AM_CONDITIONAL(USING_MAC_INTERPOSE, $MAC_INTERPOSE)
151 backtrace_supported=yes
153 AC_MSG_CHECKING([for necessary platform features])
156 # Some old Linux distributions miss required syscalls.
157 sanitizer_supported=no
158 AC_TRY_COMPILE([#include <sys/syscall.h>],[
159 syscall (__NR_gettid);
160 syscall (__NR_futex);
161 syscall (__NR_exit_group);
162 ], [sanitizer_supported=yes])
165 sanitizer_supported=yes
168 AC_MSG_RESULT($sanitizer_supported)
169 AM_CONDITIONAL(SANITIZER_SUPPORTED, test "$sanitizer_supported" = yes)
171 # Test for __sync support.
172 AC_CACHE_CHECK([__sync extensions],
173 [libsanitizer_cv_sys_sync],
174 [if test -n "${with_target_subdir}"; then
175 libsanitizer_cv_sys_sync=yes
178 [AC_LANG_PROGRAM([int i;],
179 [__sync_bool_compare_and_swap (&i, i, i);
180 __sync_lock_test_and_set (&i, 1);
181 __sync_lock_release (&i);])],
182 [libsanitizer_cv_sys_sync=yes],
183 [libsanitizer_cv_sys_sync=no])
185 if test "$libsanitizer_cv_sys_sync" = "yes"; then
186 AC_DEFINE([HAVE_SYNC_FUNCTIONS], 1,
187 [Define to 1 if you have the __sync functions])
190 # Test for __atomic support.
191 AC_CACHE_CHECK([__atomic extensions],
192 [libsanitizer_cv_sys_atomic],
193 [if test -n "${with_target_subdir}"; then
194 libsanitizer_cv_sys_atomic=yes
197 [AC_LANG_PROGRAM([int i;],
198 [__atomic_load_n (&i, __ATOMIC_ACQUIRE);
199 __atomic_store_n (&i, 1, __ATOMIC_RELEASE);])],
200 [libsanitizer_cv_sys_atomic=yes],
201 [libsanitizer_cv_sys_atomic=no])
203 if test "$libsanitizer_cv_sys_atomic" = "yes"; then
204 AC_DEFINE([HAVE_ATOMIC_FUNCTIONS], 1,
205 [Define to 1 if you have the __atomic functions])
208 # The library needs to be able to read the executable itself. Compile
209 # a file to determine the executable format. The awk script
210 # filetype.awk prints out the file type.
211 AC_CACHE_CHECK([output filetype],
212 [libsanitizer_cv_sys_filetype],
215 [AC_LANG_PROGRAM([int i;], [int j;])],
216 [filetype=`${AWK} -f $srcdir/../libbacktrace/filetype.awk conftest.$ac_objext`],
217 [AC_MSG_FAILURE([compiler failed])])
218 libsanitizer_cv_sys_filetype=$filetype])
220 # Match the file type to decide what files to compile.
222 case "$libsanitizer_cv_sys_filetype" in
223 elf*) FORMAT_FILE="elf.lo" ;;
224 *) AC_MSG_WARN([could not determine output file type])
225 FORMAT_FILE="unknown.lo"
226 backtrace_supported=no
229 AC_SUBST(FORMAT_FILE)
233 case "$libsanitizer_cv_sys_filetype" in
237 AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64])
239 BACKTRACE_SUPPORTED=0
240 if test "$backtrace_supported" = "yes"; then
241 BACKTRACE_SUPPORTED=1
243 AC_SUBST(BACKTRACE_SUPPORTED)
245 GCC_HEADER_STDINT(gstdint.h)
247 AC_CHECK_HEADERS(sys/mman.h alloca.h)
248 if test "$ac_cv_header_sys_mman_h" = "no"; then
251 if test -n "${with_target_subdir}"; then
252 # When built as a GCC target library, we can't do a link test. We
253 # simply assume that if we have mman.h, we have mmap.
256 AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no])
259 if test "$have_mmap" = "no"; then
264 AC_PREPROC_IFELSE([AC_LANG_SOURCE([
265 #include <sys/mman.h>
266 #if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
267 #error no MAP_ANONYMOUS
269 ])], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
274 BACKTRACE_USES_MALLOC=0
275 if test "$ALLOC_FILE" = "alloc.lo"; then
276 BACKTRACE_USES_MALLOC=1
278 AC_SUBST(BACKTRACE_USES_MALLOC)
280 # Don't care about thread support
281 BACKTRACE_SUPPORTS_THREADS=0
282 AC_SUBST(BACKTRACE_SUPPORTS_THREADS)
284 # Check for dl_iterate_phdr.
285 AC_CHECK_HEADERS(link.h)
286 if test "$ac_cv_header_link_h" = "no"; then
287 have_dl_iterate_phdr=no
289 # When built as a GCC target library, we can't do a link test.
290 AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes],
291 [have_dl_iterate_phdr=no])
293 if test "$have_dl_iterate_phdr" = "yes"; then
294 AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.])
297 # Check for the fcntl function.
298 if test -n "${with_target_subdir}"; then
300 *-*-mingw*) have_fcntl=no ;;
304 AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no])
306 if test "$have_fcntl" = "yes"; then
307 AC_DEFINE([HAVE_FCNTL], 1,
308 [Define to 1 if you have the fcntl function])
311 AC_CHECK_DECLS(strnlen)
313 # Check for getexecname function.
314 if test -n "${with_target_subdir}"; then
316 *-*-solaris2*) have_getexecname=yes ;;
317 *) have_getexecname=no ;;
320 AC_CHECK_FUNC(getexecname, [have_getexecname=yes], [have_getexecname=no])
322 if test "$have_getexecname" = "yes"; then
323 AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.])
326 # Check for rpc/xdr.h
327 AC_CHECK_HEADERS(rpc/xdr.h)
328 if test x"$ac_cv_header_rpc_xdr_h" = xyes; then
329 rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=1"
331 rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=0"
334 # Check for tirpc/rpc/xdr.h
335 AC_CHECK_HEADERS(tirpc/rpc/xdr.h)
336 if test x"$ac_cv_header_tirpc_rpc_xdr_h" = xyes; then
337 rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=1"
339 rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=0"
342 AC_SUBST([RPC_DEFS], [$rpc_defs])
344 AM_CONDITIONAL(LIBBACKTRACE_SUPPORTED,
345 [test "x${BACKTRACE_SUPPORTED}x${BACKTRACE_USES_MALLOC}" = "x1x0"])
347 AH_BOTTOM([#include "libbacktrace/backtrace-rename.h"])
348 AC_CONFIG_FILES([Makefile libsanitizer.spec libbacktrace/backtrace-supported.h])
349 AC_CONFIG_HEADER(config.h)
351 AC_CONFIG_FILES(AC_FOREACH([DIR], [interception sanitizer_common libbacktrace lsan asan ubsan], [DIR/Makefile ]),
352 [cat > vpsed$$ << \_EOF
353 s!`test -f '$<' || echo '$(srcdir)/'`!!
355 sed -f vpsed$$ $ac_file > tmp$$
358 echo 'MULTISUBDIR =' >> $ac_file
360 . ${multi_basedir}/config-ml.in
361 AS_UNSET([ml_norecursion])
364 if test "x$TSAN_SUPPORTED" = "xyes"; then
365 AC_CONFIG_FILES(AC_FOREACH([DIR], [tsan], [DIR/Makefile ]),
366 [cat > vpsed$$ << \_EOF
367 s!`test -f '$<' || echo '$(srcdir)/'`!!
369 sed -f vpsed$$ $ac_file > tmp$$
372 echo 'MULTISUBDIR =' >> $ac_file
374 . ${multi_basedir}/config-ml.in
375 AS_UNSET([ml_norecursion])
379 AC_SUBST([TSAN_TARGET_DEPENDENT_OBJECTS])
380 AC_SUBST([SANITIZER_COMMON_TARGET_DEPENDENT_OBJECTS])
382 # Determine what GCC version number to use in filesystem paths.
385 # Add CET specific flags if Intel CET is enabled.
386 GCC_CET_FLAGS(CET_FLAGS)
387 EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS"
388 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $CET_FLAGS"
389 EXTRA_ASFLAGS=$CET_FLAGS
390 AC_SUBST(EXTRA_ASFLAGS)
391 AC_SUBST(EXTRA_CFLAGS)
392 AC_SUBST(EXTRA_CXXFLAGS)