libsanitizer/configure.ac

   1 #                                               -*- Autoconf -*-
   2 # Process this file with autoconf to produce a configure script.
   3
   4 AC_INIT(package-unused, version-unused, libsanitizer)
   5 AC_CONFIG_SRCDIR([include/sanitizer/common_interface_defs.h])
   6
   7 AM_ENABLE_MULTILIB(, ..)
   8
   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 ],
  12 [case "$enableval" in
  13  yes) version_specific_libs=yes ;;
  14  no)  version_specific_libs=no ;;
  15  *)   AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
  16  esac],
  17 [version_specific_libs=no])
  18 AC_MSG_RESULT($version_specific_libs)
  19
  20 AC_USE_SYSTEM_EXTENSIONS
  21
  22 # Do not delete or change the following two lines.  For why, see
  23 # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
  24 AC_CANONICAL_SYSTEM
  25 target_alias=${target_alias-$host_alias}
  26 AC_SUBST(target_alias)
  27 GCC_LIBSTDCXX_RAW_CXX_FLAGS
  28
  29 AM_INIT_AUTOMAKE(foreign no-dist)
  30 AM_MAINTAINER_MODE
  31
  32 GCC_WITH_TOOLEXECLIBDIR
  33
  34 # Calculate toolexeclibdir
  35 # Also toolexecdir, though it's only used in toolexeclibdir
  36 case ${version_specific_libs} in
  37   yes)
  38     # Need the gcc compiler version to know where to install libraries
  39     # and header files if --enable-version-specific-runtime-libs option
  40     # is selected.
  41     toolexecdir='$(libdir)/gcc/$(target_alias)'
  42     toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
  43     ;;
  44   no)
  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 ${with_toolexeclibdir} in
  50         no)
  51           toolexeclibdir='$(toolexecdir)/lib'
  52           ;;
  53         *)
  54           toolexeclibdir=${with_toolexeclibdir}
  55           ;;
  56       esac
  57     else
  58       toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
  59       toolexeclibdir='$(libdir)'
  60     fi
  61     multi_os_directory=`$CC -print-multi-os-directory`
  62     case $multi_os_directory in
  63       .) ;; # Avoid trailing /.
  64       *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
  65     esac
  66     ;;
  67 esac
  68 AC_SUBST(toolexecdir)
  69 AC_SUBST(toolexeclibdir)
  70
  71 # Checks for programs.
  72 AC_PROG_CC
  73 AC_PROG_CXX
  74 AM_PROG_AS
  75 AC_PROG_RANLIB
  76
  77 AC_LIBTOOL_DLOPEN
  78 AM_PROG_LIBTOOL
  79
  80 AC_PROG_AWK
  81 case "$AWK" in
  82 "") AC_MSG_ERROR([can't build without awk]) ;;
  83 esac
  84
  85 AC_SUBST(enable_shared)
  86 AC_SUBST(enable_static)
  87
  88 AM_CONDITIONAL([ENABLE_DARWIN_AT_RPATH], [test x$enable_darwin_at_rpath = xyes])
  89
  90 AC_CHECK_SIZEOF([void *])
  91
  92 if test "${multilib}" = "yes"; then
  93   multilib_arg="--enable-multilib"
  94 else
  95   multilib_arg=
  96 fi
  97
  98 # Get target configury.
  99 unset TSAN_SUPPORTED
 100 unset LSAN_SUPPORTED
 101 unset HWASAN_SUPPORTED
 102 . ${srcdir}/configure.tgt
 103 AM_CONDITIONAL(TSAN_SUPPORTED, [test "x$TSAN_SUPPORTED" = "xyes"])
 104 AM_CONDITIONAL(LSAN_SUPPORTED, [test "x$LSAN_SUPPORTED" = "xyes"])
 105 AM_CONDITIONAL(HWASAN_SUPPORTED, [test "x$HWASAN_SUPPORTED" = "xyes"])
 106
 107 # Check for functions needed.
 108 AC_CHECK_FUNCS(clock_getres clock_gettime clock_settime lstat readlink)
 109
 110 # Common libraries that we need to link against for all sanitizer libs.
 111 link_sanitizer_common='-lpthread -lm'
 112
 113 # At least for glibc, shm_open is in librt.  But don't pull that
 114 # in if it still doesn't give us the function we want.  This
 115 # test is copied from libgomp.
 116 AC_CHECK_LIB(rt, shm_open,
 117   [link_sanitizer_common="-lrt $link_sanitizer_common"])
 118
 119 # Do a configure time check for -ldl
 120 AC_CHECK_LIB(dl, dlsym,
 121   [link_sanitizer_common="-ldl $link_sanitizer_common"])
 122
 123 # Set up the set of additional libraries that we need to link against for libasan.
 124 link_libasan=$link_sanitizer_common
 125 AC_SUBST(link_libasan)
 126
 127 # Set up the set of additional libraries that we need to link against for libhwasan.
 128 link_libhwasan=$link_sanitizer_common
 129 AC_SUBST(link_libhwasan)
 130
 131 # Set up the set of additional libraries that we need to link against for libtsan.
 132 link_libtsan=$link_sanitizer_common
 133 AC_SUBST(link_libtsan)
 134
 135 # Set up the set of additional libraries that we need to link against for libubsan.
 136 link_libubsan=$link_sanitizer_common
 137 AC_SUBST(link_libubsan)
 138
 139 # Set up the set of additional libraries that we need to link against for liblsan.
 140 link_liblsan=$link_sanitizer_common
 141 AC_SUBST(link_liblsan)
 142
 143
 144 # At least for glibc, clock_gettime is in librt.  But don't pull that
 145 # in if it still doesn't give us the function we want.  This
 146 # test is copied from libgomp.
 147 AC_CHECK_LIB(rt, clock_gettime,
 148   [link_libasan="-lrt $link_libasan"
 149 link_libtsan="-lrt $link_libtsan"
 150 # Other sanitizers do not override clock_* API
 151 ])
 152
 153 case "$host" in
 154   *-*-darwin*) MAC_INTERPOSE=true ; enable_static=no ;;
 155   *) MAC_INTERPOSE=false ;;
 156 esac
 157 AM_CONDITIONAL(USING_MAC_INTERPOSE, $MAC_INTERPOSE)
 158
 159 backtrace_supported=yes
 160
 161 AC_MSG_CHECKING([for necessary platform features])
 162 case "$target" in
 163   *-*-linux*)
 164     # Some old Linux distributions miss required syscalls.
 165     sanitizer_supported=no
 166     AC_TRY_COMPILE([#include <sys/syscall.h>
 167 #include <unistd.h>],[
 168       syscall (__NR_gettid);
 169       syscall (__NR_futex);
 170       syscall (__NR_exit_group);
 171     ], [sanitizer_supported=yes])
 172     ;;
 173   *)
 174     sanitizer_supported=yes
 175     ;;
 176 esac
 177 AC_MSG_RESULT($sanitizer_supported)
 178 AM_CONDITIONAL(SANITIZER_SUPPORTED, test "$sanitizer_supported" = yes)
 179
 180 # Test for __sync support.
 181 AC_CACHE_CHECK([__sync extensions],
 182 [libsanitizer_cv_sys_sync],
 183 [if test -n "${with_target_subdir}"; then
 184    libsanitizer_cv_sys_sync=yes
 185  else
 186    AC_LINK_IFELSE(
 187      [AC_LANG_PROGRAM([int i;],
 188                       [__sync_bool_compare_and_swap (&i, i, i);
 189                        __sync_lock_test_and_set (&i, 1);
 190                        __sync_lock_release (&i);])],
 191      [libsanitizer_cv_sys_sync=yes],
 192      [libsanitizer_cv_sys_sync=no])
 193  fi])
 194 if test "$libsanitizer_cv_sys_sync" = "yes"; then
 195   AC_DEFINE([HAVE_SYNC_FUNCTIONS], 1,
 196             [Define to 1 if you have the __sync functions])
 197 fi
 198
 199 # Test for __atomic support.
 200 AC_CACHE_CHECK([__atomic extensions],
 201 [libsanitizer_cv_sys_atomic],
 202 [if test -n "${with_target_subdir}"; then
 203    libsanitizer_cv_sys_atomic=yes
 204  else
 205    AC_LINK_IFELSE(
 206      [AC_LANG_PROGRAM([int i;],
 207                       [__atomic_load_n (&i, __ATOMIC_ACQUIRE);
 208                        __atomic_store_n (&i, 1, __ATOMIC_RELEASE);])],
 209      [libsanitizer_cv_sys_atomic=yes],
 210      [libsanitizer_cv_sys_atomic=no])
 211  fi])
 212 if test "$libsanitizer_cv_sys_atomic" = "yes"; then
 213   AC_DEFINE([HAVE_ATOMIC_FUNCTIONS], 1,
 214             [Define to 1 if you have the __atomic functions])
 215 fi
 216
 217 # The library needs to be able to read the executable itself.  Compile
 218 # a file to determine the executable format.  The awk script
 219 # filetype.awk prints out the file type.
 220 AC_CACHE_CHECK([output filetype],
 221 [libsanitizer_cv_sys_filetype],
 222 [filetype=
 223 AC_COMPILE_IFELSE(
 224   [AC_LANG_PROGRAM([int i;], [int j;])],
 225   [filetype=`${AWK} -f $srcdir/../libbacktrace/filetype.awk conftest.$ac_objext`],
 226   [AC_MSG_FAILURE([compiler failed])])
 227 libsanitizer_cv_sys_filetype=$filetype])
 228
 229 # Match the file type to decide what files to compile.
 230 FORMAT_FILE=
 231 case "$libsanitizer_cv_sys_filetype" in
 232 elf*) FORMAT_FILE="elf.lo" ;;
 233 *) AC_MSG_WARN([could not determine output file type])
 234    FORMAT_FILE="unknown.lo"
 235    backtrace_supported=no
 236    ;;
 237 esac
 238 AC_SUBST(FORMAT_FILE)
 239
 240 # ELF defines.
 241 elfsize=
 242 case "$libsanitizer_cv_sys_filetype" in
 243 elf32) elfsize=32 ;;
 244 elf64) elfsize=64 ;;
 245 esac
 246 AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64])
 247
 248 BACKTRACE_SUPPORTED=0
 249 if test "$backtrace_supported" = "yes"; then
 250   BACKTRACE_SUPPORTED=1
 251 fi
 252 AC_SUBST(BACKTRACE_SUPPORTED)
 253
 254 GCC_HEADER_STDINT(gstdint.h)
 255
 256 AC_CHECK_HEADERS(sys/mman.h alloca.h)
 257 if test "$ac_cv_header_sys_mman_h" = "no"; then
 258   have_mmap=no
 259 else
 260   if test -n "${with_target_subdir}"; then
 261     # When built as a GCC target library, we can't do a link test.  We
 262     # simply assume that if we have mman.h, we have mmap.
 263     have_mmap=yes
 264   else
 265     AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no])
 266   fi
 267 fi
 268 if test "$have_mmap" = "no"; then
 269   VIEW_FILE=read.lo
 270   ALLOC_FILE=alloc.lo
 271 else
 272   VIEW_FILE=mmapio.lo
 273   AC_PREPROC_IFELSE([AC_LANG_SOURCE([
 274 #include <sys/mman.h>
 275 #if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
 276   #error no MAP_ANONYMOUS
 277 #endif
 278 ])], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
 279 fi
 280 AC_SUBST(VIEW_FILE)
 281 AC_SUBST(ALLOC_FILE)
 282
 283 BACKTRACE_USES_MALLOC=0
 284 if test "$ALLOC_FILE" = "alloc.lo"; then
 285   BACKTRACE_USES_MALLOC=1
 286 fi
 287 AC_SUBST(BACKTRACE_USES_MALLOC)
 288
 289 # Don't care about thread support
 290 BACKTRACE_SUPPORTS_THREADS=0
 291 AC_SUBST(BACKTRACE_SUPPORTS_THREADS)
 292
 293 # Check for dl_iterate_phdr.
 294 AC_CHECK_HEADERS(link.h)
 295 if test "$ac_cv_header_link_h" = "no"; then
 296   have_dl_iterate_phdr=no
 297 else
 298   # When built as a GCC target library, we can't do a link test.
 299   AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes],
 300                   [have_dl_iterate_phdr=no])
 301 fi
 302 if test "$have_dl_iterate_phdr" = "yes"; then
 303   AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.])
 304 fi
 305
 306 # Check for the fcntl function.
 307 if test -n "${with_target_subdir}"; then
 308    case "${host}" in
 309    *-*-mingw*) have_fcntl=no ;;
 310    *) have_fcntl=yes ;;
 311    esac
 312 else
 313   AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no])
 314 fi
 315 if test "$have_fcntl" = "yes"; then
 316   AC_DEFINE([HAVE_FCNTL], 1,
 317             [Define to 1 if you have the fcntl function])
 318 fi
 319
 320 AC_CHECK_DECLS(strnlen)
 321
 322 # Check for getexecname function.
 323 if test -n "${with_target_subdir}"; then
 324    case "${host}" in
 325    *-*-solaris2*) have_getexecname=yes ;;
 326    *) have_getexecname=no ;;
 327    esac
 328 else
 329   AC_CHECK_FUNC(getexecname, [have_getexecname=yes], [have_getexecname=no])
 330 fi
 331 if test "$have_getexecname" = "yes"; then
 332   AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.])
 333 fi
 334
 335 # Check for rpc/xdr.h
 336 AC_CHECK_HEADERS(rpc/xdr.h)
 337 if test x"$ac_cv_header_rpc_xdr_h" = xyes; then
 338   rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=1"
 339 else
 340   rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=0"
 341 fi
 342
 343 # Check for tirpc/rpc/xdr.h
 344 AC_CHECK_HEADERS(tirpc/rpc/xdr.h)
 345 if test x"$ac_cv_header_tirpc_rpc_xdr_h" = xyes; then
 346   rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=1"
 347 else
 348   rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=0"
 349 fi
 350
 351 AC_SUBST([RPC_DEFS], [$rpc_defs])
 352
 353 AM_CONDITIONAL(LIBBACKTRACE_SUPPORTED,
 354                [test "x${BACKTRACE_SUPPORTED}x${BACKTRACE_USES_MALLOC}" = "x1x0"])
 355
 356 AH_BOTTOM([#include "libbacktrace/backtrace-rename.h"])
 357 AC_CONFIG_FILES([Makefile libsanitizer.spec libbacktrace/backtrace-supported.h])
 358 AC_CONFIG_HEADER(config.h)
 359
 360 AC_CONFIG_FILES(AC_FOREACH([DIR], [interception sanitizer_common libbacktrace lsan asan ubsan], [DIR/Makefile ]),
 361   [cat > vpsed$$ << \_EOF
 362 s!`test -f '$<' || echo '$(srcdir)/'`!!
 363 _EOF
 364    sed -f vpsed$$ $ac_file > tmp$$
 365    mv tmp$$ $ac_file
 366    rm vpsed$$
 367    echo 'MULTISUBDIR =' >> $ac_file
 368    ml_norecursion=yes
 369    . ${multi_basedir}/config-ml.in
 370    AS_UNSET([ml_norecursion])
 371 ])
 372
 373 if test "x$TSAN_SUPPORTED" = "xyes"; then
 374   AC_CONFIG_FILES(AC_FOREACH([DIR], [tsan], [DIR/Makefile ]),
 375     [cat > vpsed$$ << \_EOF
 376 s!`test -f '$<' || echo '$(srcdir)/'`!!
 377 _EOF
 378     sed -f vpsed$$ $ac_file > tmp$$
 379     mv tmp$$ $ac_file
 380     rm vpsed$$
 381     echo 'MULTISUBDIR =' >> $ac_file
 382     ml_norecursion=yes
 383     . ${multi_basedir}/config-ml.in
 384     AS_UNSET([ml_norecursion])
 385 ])
 386 fi
 387
 388 if test "x$HWASAN_SUPPORTED" = "xyes"; then
 389   AC_CONFIG_FILES(AC_FOREACH([DIR], [hwasan], [DIR/Makefile ]),
 390     [cat > vpsed$$ << \_EOF
 391 s!`test -f '$<' || echo '$(srcdir)/'`!!
 392 _EOF
 393     sed -f vpsed$$ $ac_file > tmp$$
 394     mv tmp$$ $ac_file
 395     rm vpsed$$
 396     echo 'MULTISUBDIR =' >> $ac_file
 397     ml_norecursion=yes
 398     . ${multi_basedir}/config-ml.in
 399     AS_UNSET([ml_norecursion])
 400 ])
 401 fi
 402
 403 AC_SUBST([TSAN_TARGET_DEPENDENT_OBJECTS])
 404 AC_SUBST([SANITIZER_COMMON_TARGET_DEPENDENT_OBJECTS])
 405
 406 AC_ARG_ENABLE([werror],
 407   [AS_HELP_STRING([--disable-werror], [disable building with -Werror])])
 408
 409 ACX_PROG_CC_WARNING_OPTS([-Wextra -Wall -Wwrite-strings \
 410                           -Wmissing-format-attribute -Wcast-qual],
 411                           [WARN_FLAGS])
 412 AS_IF([test "x$enable_werror" != "xno"],
 413   [WARN_FLAGS="$WARN_FLAGS -Werror"])
 414 AC_SUBST([WARN_FLAGS])
 415
 416 # Determine what GCC version number to use in filesystem paths.
 417 GCC_BASE_VER
 418
 419 # Add CET specific flags if Intel CET is enabled.
 420 GCC_CET_FLAGS(CET_FLAGS)
 421
 422 # Always set -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 to sync with LLVM,
 423 # and keep struct *stat* have the same size.
 424 case "${host}" in
 425   mips*-*) FILE64_FLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" ;;
 426   *) FILE64_FLAGS="" ;;
 427 esac
 428
 429 EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS $FILE64_FLAGS"
 430 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $CET_FLAGS $FILE64_FLAGS"
 431 EXTRA_ASFLAGS=$CET_FLAGS
 432 AC_SUBST(EXTRA_ASFLAGS)
 433 AC_SUBST(EXTRA_CFLAGS)
 434 AC_SUBST(EXTRA_CXXFLAGS)
 435
 436 AC_OUTPUT