libsanitizer/configure.ac

   1 #                                               -*- Autoconf -*-
   2 # Process this file with autoconf to produce a configure script.
   3
   4 AC_PREREQ([2.64])
   5 AC_INIT(package-unused, version-unused, libsanitizer)
   6 AC_CONFIG_SRCDIR([include/sanitizer/common_interface_defs.h])
   7
   8 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
   9 AC_ARG_ENABLE(version-specific-runtime-libs,
  10 [  --enable-version-specific-runtime-libs    Specify that runtime libraries should be installed in a compiler-specific directory ],
  11 [case "$enableval" in
  12  yes) version_specific_libs=yes ;;
  13  no)  version_specific_libs=no ;;
  14  *)   AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
  15  esac],
  16 [version_specific_libs=no])
  17 AC_MSG_RESULT($version_specific_libs)
  18
  19 AC_USE_SYSTEM_EXTENSIONS
  20
  21 # Do not delete or change the following two lines.  For why, see
  22 # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
  23 AC_CANONICAL_SYSTEM
  24 target_alias=${target_alias-$host_alias}
  25 AC_SUBST(target_alias)
  26 GCC_LIBSTDCXX_RAW_CXX_FLAGS
  27
  28 AM_INIT_AUTOMAKE(foreign no-dist)
  29 AM_ENABLE_MULTILIB(, ..)
  30 AM_MAINTAINER_MODE
  31
  32 # Calculate toolexeclibdir
  33 # Also toolexecdir, though it's only used in toolexeclibdir
  34 case ${version_specific_libs} in
  35   yes)
  36     # Need the gcc compiler version to know where to install libraries
  37     # and header files if --enable-version-specific-runtime-libs option
  38     # is selected.
  39     toolexecdir='$(libdir)/gcc/$(target_alias)'
  40     toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
  41     ;;
  42   no)
  43     if test -n "$with_cross_host" &&
  44        test x"$with_cross_host" != x"no"; then
  45       # Install a library built with a cross compiler in tooldir, not libdir.
  46       toolexecdir='$(exec_prefix)/$(target_alias)'
  47       toolexeclibdir='$(toolexecdir)/lib'
  48     else
  49       toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
  50       toolexeclibdir='$(libdir)'
  51     fi
  52     multi_os_directory=`$CC -print-multi-os-directory`
  53     case $multi_os_directory in
  54       .) ;; # Avoid trailing /.
  55       *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
  56     esac
  57     ;;
  58 esac
  59 AC_SUBST(toolexecdir)
  60 AC_SUBST(toolexeclibdir)
  61
  62 # Checks for programs.
  63 AC_PROG_CC
  64 AC_PROG_CXX
  65 AM_PROG_AS
  66 AC_PROG_RANLIB
  67
  68 AC_LIBTOOL_DLOPEN
  69 AM_PROG_LIBTOOL
  70
  71 AC_PROG_AWK
  72 case "$AWK" in
  73 "") AC_MSG_ERROR([can't build without awk]) ;;
  74 esac
  75
  76 AC_SUBST(enable_shared)
  77 AC_SUBST(enable_static)
  78
  79 AC_CHECK_SIZEOF([void *])
  80
  81 if test "${multilib}" = "yes"; then
  82   multilib_arg="--enable-multilib"
  83 else
  84   multilib_arg=
  85 fi
  86
  87 # Get target configury.
  88 unset TSAN_SUPPORTED
  89 unset LSAN_SUPPORTED
  90 . ${srcdir}/configure.tgt
  91 AM_CONDITIONAL(TSAN_SUPPORTED, [test "x$TSAN_SUPPORTED" = "xyes"])
  92 AM_CONDITIONAL(LSAN_SUPPORTED, [test "x$LSAN_SUPPORTED" = "xyes"])
  93
  94 # Check for functions needed.
  95 AC_CHECK_FUNCS(clock_getres clock_gettime clock_settime)
  96
  97 # Common libraries that we need to link against for all sanitizer libs.
  98 link_sanitizer_common='-lpthread -ldl -lm'
  99
 100 # Set up the set of additional libraries that we need to link against for libasan.
 101 link_libasan=$link_sanitizer_common
 102 AC_SUBST(link_libasan)
 103
 104 # Set up the set of additional libraries that we need to link against for libtsan.
 105 link_libtsan=$link_sanitizer_common
 106 AC_SUBST(link_libtsan)
 107
 108 # Set up the set of additional libraries that we need to link against for libubsan.
 109 link_libubsan=$link_sanitizer_common
 110 AC_SUBST(link_libubsan)
 111
 112 # Set up the set of additional libraries that we need to link against for liblsan.
 113 link_liblsan=$link_sanitizer_common
 114 AC_SUBST(link_liblsan)
 115
 116 # At least for glibc, clock_gettime is in librt.  But don't pull that
 117 # in if it still doesn't give us the function we want.  This
 118 # test is copied from libgomp.
 119 if test $ac_cv_func_clock_gettime = no; then
 120   AC_CHECK_LIB(rt, clock_gettime,
 121     [link_libasan="-lrt $link_libasan"
 122 link_libtsan="-lrt $link_libtsan"
 123 # Other sanitizers do not override clock_* API
 124 ])
 125 fi
 126
 127 case "$host" in
 128   *-*-darwin*) MAC_INTERPOSE=true ; enable_static=no ;;
 129   *) MAC_INTERPOSE=false ;;
 130 esac
 131 AM_CONDITIONAL(USING_MAC_INTERPOSE, $MAC_INTERPOSE)
 132
 133 backtrace_supported=yes
 134
 135 # Test for __sync support.
 136 AC_CACHE_CHECK([__sync extensions],
 137 [libsanitizer_cv_sys_sync],
 138 [if test -n "${with_target_subdir}"; then
 139    libsanitizer_cv_sys_sync=yes
 140  else
 141    AC_LINK_IFELSE(
 142      [AC_LANG_PROGRAM([int i;],
 143                       [__sync_bool_compare_and_swap (&i, i, i);
 144                        __sync_lock_test_and_set (&i, 1);
 145                        __sync_lock_release (&i);])],
 146      [libsanitizer_cv_sys_sync=yes],
 147      [libsanitizer_cv_sys_sync=no])
 148  fi])
 149 if test "$libsanitizer_cv_sys_sync" = "yes"; then
 150   AC_DEFINE([HAVE_SYNC_FUNCTIONS], 1,
 151             [Define to 1 if you have the __sync functions])
 152 fi
 153
 154 # Test for __atomic support.
 155 AC_CACHE_CHECK([__atomic extensions],
 156 [libsanitizer_cv_sys_atomic],
 157 [if test -n "${with_target_subdir}"; then
 158    libsanitizer_cv_sys_atomic=yes
 159  else
 160    AC_LINK_IFELSE(
 161      [AC_LANG_PROGRAM([int i;],
 162                       [__atomic_load_n (&i, __ATOMIC_ACQUIRE);
 163                        __atomic_store_n (&i, 1, __ATOMIC_RELEASE);])],
 164      [libsanitizer_cv_sys_atomic=yes],
 165      [libsanitizer_cv_sys_atomic=no])
 166  fi])
 167 if test "$libsanitizer_cv_sys_atomic" = "yes"; then
 168   AC_DEFINE([HAVE_ATOMIC_FUNCTIONS], 1,
 169             [Define to 1 if you have the __atomic functions])
 170 fi
 171
 172 # The library needs to be able to read the executable itself.  Compile
 173 # a file to determine the executable format.  The awk script
 174 # filetype.awk prints out the file type.
 175 AC_CACHE_CHECK([output filetype],
 176 [libsanitizer_cv_sys_filetype],
 177 [filetype=
 178 AC_COMPILE_IFELSE(
 179   [AC_LANG_PROGRAM([int i;], [int j;])],
 180   [filetype=`${AWK} -f $srcdir/../libbacktrace/filetype.awk conftest.$ac_objext`],
 181   [AC_MSG_FAILURE([compiler failed])])
 182 libsanitizer_cv_sys_filetype=$filetype])
 183
 184 # Match the file type to decide what files to compile.
 185 FORMAT_FILE=
 186 case "$libsanitizer_cv_sys_filetype" in
 187 elf*) FORMAT_FILE="elf.lo" ;;
 188 *) AC_MSG_WARN([could not determine output file type])
 189    FORMAT_FILE="unknown.lo"
 190    backtrace_supported=no
 191    ;;
 192 esac
 193 AC_SUBST(FORMAT_FILE)
 194
 195 # ELF defines.
 196 elfsize=
 197 case "$libsanitizer_cv_sys_filetype" in
 198 elf32) elfsize=32 ;;
 199 elf64) elfsize=64 ;;
 200 esac
 201 AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64])
 202
 203 BACKTRACE_SUPPORTED=0
 204 if test "$backtrace_supported" = "yes"; then
 205   BACKTRACE_SUPPORTED=1
 206 fi
 207 AC_SUBST(BACKTRACE_SUPPORTED)
 208
 209 GCC_HEADER_STDINT(gstdint.h)
 210
 211 AC_CHECK_HEADERS(sys/mman.h alloca.h)
 212 if test "$ac_cv_header_sys_mman_h" = "no"; then
 213   have_mmap=no
 214 else
 215   if test -n "${with_target_subdir}"; then
 216     # When built as a GCC target library, we can't do a link test.  We
 217     # simply assume that if we have mman.h, we have mmap.
 218     have_mmap=yes
 219   else
 220     AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no])
 221   fi
 222 fi
 223 if test "$have_mmap" = "no"; then
 224   VIEW_FILE=read.lo
 225   ALLOC_FILE=alloc.lo
 226 else
 227   VIEW_FILE=mmapio.lo
 228   AC_PREPROC_IFELSE([
 229 #include <sys/mman.h>
 230 #if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
 231   #error no MAP_ANONYMOUS
 232 #endif
 233 ], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
 234 fi
 235 AC_SUBST(VIEW_FILE)
 236 AC_SUBST(ALLOC_FILE)
 237
 238 BACKTRACE_USES_MALLOC=0
 239 if test "$ALLOC_FILE" = "alloc.lo"; then
 240   BACKTRACE_USES_MALLOC=1
 241 fi
 242 AC_SUBST(BACKTRACE_USES_MALLOC)
 243
 244 # Don't care about thread support
 245 BACKTRACE_SUPPORTS_THREADS=0
 246 AC_SUBST(BACKTRACE_SUPPORTS_THREADS)
 247
 248 # Check for dl_iterate_phdr.
 249 AC_CHECK_HEADERS(link.h)
 250 if test "$ac_cv_header_link_h" = "no"; then
 251   have_dl_iterate_phdr=no
 252 else
 253   # When built as a GCC target library, we can't do a link test.
 254   AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes],
 255                   [have_dl_iterate_phdr=no])
 256   case "${host}" in
 257   *-*-solaris2.10*)
 258     # Avoid dl_iterate_phdr on Solaris 10, where it is in the
 259     # header file but is only in -ldl.
 260     have_dl_iterate_phdr=no ;;
 261   esac
 262 fi
 263 if test "$have_dl_iterate_phdr" = "yes"; then
 264   AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.])
 265 fi
 266
 267 # Check for the fcntl function.
 268 if test -n "${with_target_subdir}"; then
 269    case "${host}" in
 270    *-*-mingw*) have_fcntl=no ;;
 271    *) have_fcntl=yes ;;
 272    esac
 273 else
 274   AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no])
 275 fi
 276 if test "$have_fcntl" = "yes"; then
 277   AC_DEFINE([HAVE_FCNTL], 1,
 278             [Define to 1 if you have the fcntl function])
 279 fi
 280
 281 AC_CHECK_DECLS(strnlen)
 282
 283 # Check for getexecname function.
 284 if test -n "${with_target_subdir}"; then
 285    case "${host}" in
 286    *-*-solaris2*) have_getexecname=yes ;;
 287    *) have_getexecname=no ;;
 288    esac
 289 else
 290   AC_CHECK_FUNC(getexecname, [have_getexecname=yes], [have_getexecname=no])
 291 fi
 292 if test "$have_getexecname" = "yes"; then
 293   AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.])
 294 fi
 295
 296 AM_CONDITIONAL(LIBBACKTRACE_SUPPORTED,
 297                [test "x${BACKTRACE_SUPPORTED}x${BACKTRACE_USES_MALLOC}" = "x1x0"])
 298
 299 AH_BOTTOM([#include "libbacktrace/backtrace-rename.h"])
 300 AC_CONFIG_FILES([Makefile libsanitizer.spec libbacktrace/backtrace-supported.h])
 301 AC_CONFIG_HEADER(config.h)
 302
 303 AC_CONFIG_FILES(AC_FOREACH([DIR], [interception sanitizer_common libbacktrace lsan asan ubsan], [DIR/Makefile ]),
 304   [cat > vpsed$$ << \_EOF
 305 s!`test -f '$<' || echo '$(srcdir)/'`!!
 306 _EOF
 307    sed -f vpsed$$ $ac_file > tmp$$
 308    mv tmp$$ $ac_file
 309    rm vpsed$$
 310    echo 'MULTISUBDIR =' >> $ac_file
 311    ml_norecursion=yes
 312    . ${multi_basedir}/config-ml.in
 313    AS_UNSET([ml_norecursion])
 314 ])
 315
 316 if test "x$TSAN_SUPPORTED" = "xyes"; then
 317   AC_CONFIG_FILES(AC_FOREACH([DIR], [tsan], [DIR/Makefile ]),
 318     [cat > vpsed$$ << \_EOF
 319 s!`test -f '$<' || echo '$(srcdir)/'`!!
 320 _EOF
 321     sed -f vpsed$$ $ac_file > tmp$$
 322     mv tmp$$ $ac_file
 323     rm vpsed$$
 324     echo 'MULTISUBDIR =' >> $ac_file
 325     ml_norecursion=yes
 326     . ${multi_basedir}/config-ml.in
 327     AS_UNSET([ml_norecursion])
 328 ])
 329 fi
 330
 331 AC_OUTPUT