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 AC_CHECK_SIZEOF([void *])
  89
  90 if test "${multilib}" = "yes"; then
  91   multilib_arg="--enable-multilib"
  92 else
  93   multilib_arg=
  94 fi
  95
  96 # Get target configury.
  97 unset TSAN_SUPPORTED
  98 unset LSAN_SUPPORTED
  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"])
 104
 105 # Check for functions needed.
 106 AC_CHECK_FUNCS(clock_getres clock_gettime clock_settime lstat readlink)
 107
 108 # Common libraries that we need to link against for all sanitizer libs.
 109 link_sanitizer_common='-lpthread -lm'
 110
 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"])
 116
 117 # Do a configure time check for -ldl
 118 AC_CHECK_LIB(dl, dlsym,
 119   [link_sanitizer_common="-ldl $link_sanitizer_common"])
 120
 121 # Set up the set of additional libraries that we need to link against for libasan.
 122 link_libasan=$link_sanitizer_common
 123 AC_SUBST(link_libasan)
 124
 125 # Set up the set of additional libraries that we need to link against for libhwasan.
 126 link_libhwasan=$link_sanitizer_common
 127 AC_SUBST(link_libhwasan)
 128
 129 # Set up the set of additional libraries that we need to link against for libtsan.
 130 link_libtsan=$link_sanitizer_common
 131 AC_SUBST(link_libtsan)
 132
 133 # Set up the set of additional libraries that we need to link against for libubsan.
 134 link_libubsan=$link_sanitizer_common
 135 AC_SUBST(link_libubsan)
 136
 137 # Set up the set of additional libraries that we need to link against for liblsan.
 138 link_liblsan=$link_sanitizer_common
 139 AC_SUBST(link_liblsan)
 140
 141
 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 $link_libtsan"
 148 # Other sanitizers do not override clock_* API
 149 ])
 150
 151 case "$host" in
 152   *-*-darwin*) MAC_INTERPOSE=true ; enable_static=no ;;
 153   *) MAC_INTERPOSE=false ;;
 154 esac
 155 AM_CONDITIONAL(USING_MAC_INTERPOSE, $MAC_INTERPOSE)
 156
 157 backtrace_supported=yes
 158
 159 AC_MSG_CHECKING([for necessary platform features])
 160 case "$target" in
 161   *-*-linux*)
 162     # Some old Linux distributions miss required syscalls.
 163     sanitizer_supported=no
 164     AC_TRY_COMPILE([#include <sys/syscall.h>],[
 165       syscall (__NR_gettid);
 166       syscall (__NR_futex);
 167       syscall (__NR_exit_group);
 168     ], [sanitizer_supported=yes])
 169     ;;
 170   *)
 171     sanitizer_supported=yes
 172     ;;
 173 esac
 174 AC_MSG_RESULT($sanitizer_supported)
 175 AM_CONDITIONAL(SANITIZER_SUPPORTED, test "$sanitizer_supported" = yes)
 176
 177 # Test for __sync support.
 178 AC_CACHE_CHECK([__sync extensions],
 179 [libsanitizer_cv_sys_sync],
 180 [if test -n "${with_target_subdir}"; then
 181    libsanitizer_cv_sys_sync=yes
 182  else
 183    AC_LINK_IFELSE(
 184      [AC_LANG_PROGRAM([int i;],
 185                       [__sync_bool_compare_and_swap (&i, i, i);
 186                        __sync_lock_test_and_set (&i, 1);
 187                        __sync_lock_release (&i);])],
 188      [libsanitizer_cv_sys_sync=yes],
 189      [libsanitizer_cv_sys_sync=no])
 190  fi])
 191 if test "$libsanitizer_cv_sys_sync" = "yes"; then
 192   AC_DEFINE([HAVE_SYNC_FUNCTIONS], 1,
 193             [Define to 1 if you have the __sync functions])
 194 fi
 195
 196 # Test for __atomic support.
 197 AC_CACHE_CHECK([__atomic extensions],
 198 [libsanitizer_cv_sys_atomic],
 199 [if test -n "${with_target_subdir}"; then
 200    libsanitizer_cv_sys_atomic=yes
 201  else
 202    AC_LINK_IFELSE(
 203      [AC_LANG_PROGRAM([int i;],
 204                       [__atomic_load_n (&i, __ATOMIC_ACQUIRE);
 205                        __atomic_store_n (&i, 1, __ATOMIC_RELEASE);])],
 206      [libsanitizer_cv_sys_atomic=yes],
 207      [libsanitizer_cv_sys_atomic=no])
 208  fi])
 209 if test "$libsanitizer_cv_sys_atomic" = "yes"; then
 210   AC_DEFINE([HAVE_ATOMIC_FUNCTIONS], 1,
 211             [Define to 1 if you have the __atomic functions])
 212 fi
 213
 214 # The library needs to be able to read the executable itself.  Compile
 215 # a file to determine the executable format.  The awk script
 216 # filetype.awk prints out the file type.
 217 AC_CACHE_CHECK([output filetype],
 218 [libsanitizer_cv_sys_filetype],
 219 [filetype=
 220 AC_COMPILE_IFELSE(
 221   [AC_LANG_PROGRAM([int i;], [int j;])],
 222   [filetype=`${AWK} -f $srcdir/../libbacktrace/filetype.awk conftest.$ac_objext`],
 223   [AC_MSG_FAILURE([compiler failed])])
 224 libsanitizer_cv_sys_filetype=$filetype])
 225
 226 # Match the file type to decide what files to compile.
 227 FORMAT_FILE=
 228 case "$libsanitizer_cv_sys_filetype" in
 229 elf*) FORMAT_FILE="elf.lo" ;;
 230 *) AC_MSG_WARN([could not determine output file type])
 231    FORMAT_FILE="unknown.lo"
 232    backtrace_supported=no
 233    ;;
 234 esac
 235 AC_SUBST(FORMAT_FILE)
 236
 237 # ELF defines.
 238 elfsize=
 239 case "$libsanitizer_cv_sys_filetype" in
 240 elf32) elfsize=32 ;;
 241 elf64) elfsize=64 ;;
 242 esac
 243 AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64])
 244
 245 BACKTRACE_SUPPORTED=0
 246 if test "$backtrace_supported" = "yes"; then
 247   BACKTRACE_SUPPORTED=1
 248 fi
 249 AC_SUBST(BACKTRACE_SUPPORTED)
 250
 251 GCC_HEADER_STDINT(gstdint.h)
 252
 253 AC_CHECK_HEADERS(sys/mman.h alloca.h)
 254 if test "$ac_cv_header_sys_mman_h" = "no"; then
 255   have_mmap=no
 256 else
 257   if test -n "${with_target_subdir}"; then
 258     # When built as a GCC target library, we can't do a link test.  We
 259     # simply assume that if we have mman.h, we have mmap.
 260     have_mmap=yes
 261   else
 262     AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no])
 263   fi
 264 fi
 265 if test "$have_mmap" = "no"; then
 266   VIEW_FILE=read.lo
 267   ALLOC_FILE=alloc.lo
 268 else
 269   VIEW_FILE=mmapio.lo
 270   AC_PREPROC_IFELSE([AC_LANG_SOURCE([
 271 #include <sys/mman.h>
 272 #if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
 273   #error no MAP_ANONYMOUS
 274 #endif
 275 ])], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
 276 fi
 277 AC_SUBST(VIEW_FILE)
 278 AC_SUBST(ALLOC_FILE)
 279
 280 BACKTRACE_USES_MALLOC=0
 281 if test "$ALLOC_FILE" = "alloc.lo"; then
 282   BACKTRACE_USES_MALLOC=1
 283 fi
 284 AC_SUBST(BACKTRACE_USES_MALLOC)
 285
 286 # Don't care about thread support
 287 BACKTRACE_SUPPORTS_THREADS=0
 288 AC_SUBST(BACKTRACE_SUPPORTS_THREADS)
 289
 290 # Check for dl_iterate_phdr.
 291 AC_CHECK_HEADERS(link.h)
 292 if test "$ac_cv_header_link_h" = "no"; then
 293   have_dl_iterate_phdr=no
 294 else
 295   # When built as a GCC target library, we can't do a link test.
 296   AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes],
 297                   [have_dl_iterate_phdr=no])
 298 fi
 299 if test "$have_dl_iterate_phdr" = "yes"; then
 300   AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.])
 301 fi
 302
 303 # Check for the fcntl function.
 304 if test -n "${with_target_subdir}"; then
 305    case "${host}" in
 306    *-*-mingw*) have_fcntl=no ;;
 307    *) have_fcntl=yes ;;
 308    esac
 309 else
 310   AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no])
 311 fi
 312 if test "$have_fcntl" = "yes"; then
 313   AC_DEFINE([HAVE_FCNTL], 1,
 314             [Define to 1 if you have the fcntl function])
 315 fi
 316
 317 AC_CHECK_DECLS(strnlen)
 318
 319 # Check for getexecname function.
 320 if test -n "${with_target_subdir}"; then
 321    case "${host}" in
 322    *-*-solaris2*) have_getexecname=yes ;;
 323    *) have_getexecname=no ;;
 324    esac
 325 else
 326   AC_CHECK_FUNC(getexecname, [have_getexecname=yes], [have_getexecname=no])
 327 fi
 328 if test "$have_getexecname" = "yes"; then
 329   AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.])
 330 fi
 331
 332 # Check for rpc/xdr.h
 333 AC_CHECK_HEADERS(rpc/xdr.h)
 334 if test x"$ac_cv_header_rpc_xdr_h" = xyes; then
 335   rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=1"
 336 else
 337   rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=0"
 338 fi
 339
 340 # Check for tirpc/rpc/xdr.h
 341 AC_CHECK_HEADERS(tirpc/rpc/xdr.h)
 342 if test x"$ac_cv_header_tirpc_rpc_xdr_h" = xyes; then
 343   rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=1"
 344 else
 345   rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=0"
 346 fi
 347
 348 AC_SUBST([RPC_DEFS], [$rpc_defs])
 349
 350 AM_CONDITIONAL(LIBBACKTRACE_SUPPORTED,
 351                [test "x${BACKTRACE_SUPPORTED}x${BACKTRACE_USES_MALLOC}" = "x1x0"])
 352
 353 AH_BOTTOM([#include "libbacktrace/backtrace-rename.h"])
 354 AC_CONFIG_FILES([Makefile libsanitizer.spec libbacktrace/backtrace-supported.h])
 355 AC_CONFIG_HEADER(config.h)
 356
 357 AC_CONFIG_FILES(AC_FOREACH([DIR], [interception sanitizer_common libbacktrace lsan asan ubsan], [DIR/Makefile ]),
 358   [cat > vpsed$$ << \_EOF
 359 s!`test -f '$<' || echo '$(srcdir)/'`!!
 360 _EOF
 361    sed -f vpsed$$ $ac_file > tmp$$
 362    mv tmp$$ $ac_file
 363    rm vpsed$$
 364    echo 'MULTISUBDIR =' >> $ac_file
 365    ml_norecursion=yes
 366    . ${multi_basedir}/config-ml.in
 367    AS_UNSET([ml_norecursion])
 368 ])
 369
 370 if test "x$TSAN_SUPPORTED" = "xyes"; then
 371   AC_CONFIG_FILES(AC_FOREACH([DIR], [tsan], [DIR/Makefile ]),
 372     [cat > vpsed$$ << \_EOF
 373 s!`test -f '$<' || echo '$(srcdir)/'`!!
 374 _EOF
 375     sed -f vpsed$$ $ac_file > tmp$$
 376     mv tmp$$ $ac_file
 377     rm vpsed$$
 378     echo 'MULTISUBDIR =' >> $ac_file
 379     ml_norecursion=yes
 380     . ${multi_basedir}/config-ml.in
 381     AS_UNSET([ml_norecursion])
 382 ])
 383 fi
 384
 385 if test "x$HWASAN_SUPPORTED" = "xyes"; then
 386   AC_CONFIG_FILES(AC_FOREACH([DIR], [hwasan], [DIR/Makefile ]),
 387     [cat > vpsed$$ << \_EOF
 388 s!`test -f '$<' || echo '$(srcdir)/'`!!
 389 _EOF
 390     sed -f vpsed$$ $ac_file > tmp$$
 391     mv tmp$$ $ac_file
 392     rm vpsed$$
 393     echo 'MULTISUBDIR =' >> $ac_file
 394     ml_norecursion=yes
 395     . ${multi_basedir}/config-ml.in
 396     AS_UNSET([ml_norecursion])
 397 ])
 398 fi
 399
 400 AC_SUBST([TSAN_TARGET_DEPENDENT_OBJECTS])
 401 AC_SUBST([SANITIZER_COMMON_TARGET_DEPENDENT_OBJECTS])
 402
 403 # Determine what GCC version number to use in filesystem paths.
 404 GCC_BASE_VER
 405
 406 # Add CET specific flags if Intel CET is enabled.
 407 GCC_CET_FLAGS(CET_FLAGS)
 408 EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS"
 409 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $CET_FLAGS"
 410 EXTRA_ASFLAGS=$CET_FLAGS
 411 AC_SUBST(EXTRA_ASFLAGS)
 412 AC_SUBST(EXTRA_CFLAGS)
 413 AC_SUBST(EXTRA_CXXFLAGS)
 414
 415 AC_OUTPUT