Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 349 insertions, 0 deletions

diff --git a/gcc-4.9/libsanitizer/configure.ac b/gcc-4.9/libsanitizer/configure.ac
new file mode 100644
index 000000000..e6721312d
--- /dev/null
+++ b/gcc-4.9/libsanitizer/configure.ac
@@ -0,0 +1,349 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.64])
+AC_INIT(package-unused, version-unused, libsanitizer)
+AC_CONFIG_SRCDIR([include/sanitizer/common_interface_defs.h])
+
+AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
+AC_ARG_ENABLE(version-specific-runtime-libs,
+[  --enable-version-specific-runtime-libs    Specify that runtime libraries should be installed in a compiler-specific directory ],
+[case "$enableval" in
+ yes) version_specific_libs=yes ;;
+ no)  version_specific_libs=no ;;
+ *)   AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
+ esac],
+[version_specific_libs=no])
+AC_MSG_RESULT($version_specific_libs)
+
+AC_USE_SYSTEM_EXTENSIONS
+
+# Do not delete or change the following two lines.  For why, see
+# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
+AC_CANONICAL_SYSTEM
+target_alias=${target_alias-$host_alias}
+AC_SUBST(target_alias)
+GCC_LIBSTDCXX_RAW_CXX_FLAGS
+
+AM_INIT_AUTOMAKE(foreign no-dist)
+AM_ENABLE_MULTILIB(, ..)
+AM_MAINTAINER_MODE
+
+# Calculate toolexeclibdir
+# Also toolexecdir, though it's only used in toolexeclibdir
+case ${version_specific_libs} in
+  yes)
+    # Need the gcc compiler version to know where to install libraries
+    # and header files if --enable-version-specific-runtime-libs option
+    # is selected.
+    toolexecdir='$(libdir)/gcc/$(target_alias)'
+    toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
+    ;;
+  no)
+    if test -n "$with_cross_host" &&
+       test x"$with_cross_host" != x"no"; then
+      # Install a library built with a cross compiler in tooldir, not libdir.
+      toolexecdir='$(exec_prefix)/$(target_alias)'
+      toolexeclibdir='$(toolexecdir)/lib'
+    else
+      toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
+      toolexeclibdir='$(libdir)'
+    fi
+    multi_os_directory=`$CC -print-multi-os-directory`
+    case $multi_os_directory in
+      .) ;; # Avoid trailing /.
+      *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
+    esac
+    ;;
+esac
+AC_SUBST(toolexecdir)
+AC_SUBST(toolexeclibdir)
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_CXX
+AM_PROG_AS
+AC_PROG_RANLIB
+
+AC_LIBTOOL_DLOPEN
+AM_PROG_LIBTOOL
+
+AC_PROG_AWK
+case "$AWK" in
+"") AC_MSG_ERROR([can't build without awk]) ;;
+esac
+
+AC_SUBST(enable_shared)
+AC_SUBST(enable_static)
+
+AC_CHECK_SIZEOF([void *])
+
+if test "${multilib}" = "yes"; then
+  multilib_arg="--enable-multilib"
+else
+  multilib_arg=
+fi
+
+# Get target configury.
+unset TSAN_SUPPORTED
+unset LSAN_SUPPORTED
+. ${srcdir}/configure.tgt
+AM_CONDITIONAL(TSAN_SUPPORTED, [test "x$TSAN_SUPPORTED" = "xyes"])
+AM_CONDITIONAL(LSAN_SUPPORTED, [test "x$LSAN_SUPPORTED" = "xyes"])
+
+# Check for functions needed.
+AC_CHECK_FUNCS(clock_getres clock_gettime clock_settime)
+
+# Common libraries that we need to link against for all sanitizer libs.
+link_sanitizer_common='-lpthread -ldl -lm'
+
+# Set up the set of additional libraries that we need to link against for libasan.
+link_libasan=$link_sanitizer_common
+AC_SUBST(link_libasan)
+
+# Set up the set of additional libraries that we need to link against for libtsan.
+link_libtsan=$link_sanitizer_common
+AC_SUBST(link_libtsan)
+
+# Set up the set of additional libraries that we need to link against for libubsan.
+link_libubsan=$link_sanitizer_common
+AC_SUBST(link_libubsan)
+
+# Set up the set of additional libraries that we need to link against for liblsan.
+link_liblsan=$link_sanitizer_common
+AC_SUBST(link_liblsan)
+
+# At least for glibc, clock_gettime is in librt.  But don't pull that
+# in if it still doesn't give us the function we want.  This
+# test is copied from libgomp.
+if test $ac_cv_func_clock_gettime = no; then
+  AC_CHECK_LIB(rt, clock_gettime,
+    [link_libasan="-lrt $link_libasan"
+link_libtsan="-lrt $link_libtsan"
+# Other sanitizers do not override clock_* API
+])
+fi
+
+case "$host" in
+  *-*-darwin*) MAC_INTERPOSE=true ; enable_static=no ;;
+  *) MAC_INTERPOSE=false ;;
+esac
+AM_CONDITIONAL(USING_MAC_INTERPOSE, $MAC_INTERPOSE)
+
+backtrace_supported=yes
+
+AC_MSG_CHECKING([for necessary platform features])
+case "$target" in
+  *-*-linux*)
+    # Some old Linux distributions miss required syscalls.
+    sanitizer_supported=no
+    AC_TRY_COMPILE([#include <sys/syscall.h>],[
+      syscall (__NR_gettid);
+      syscall (__NR_futex);
+      syscall (__NR_exit_group);
+    ], [sanitizer_supported=yes])
+    ;;
+  *)
+    sanitizer_supported=yes
+    ;;
+esac
+AC_MSG_RESULT($sanitizer_supported)
+AM_CONDITIONAL(SANITIZER_SUPPORTED, test "$sanitizer_supported" = yes)
+
+# Test for __sync support.
+AC_CACHE_CHECK([__sync extensions],
+[libsanitizer_cv_sys_sync],
+[if test -n "${with_target_subdir}"; then
+   libsanitizer_cv_sys_sync=yes
+ else
+   AC_LINK_IFELSE(
+     [AC_LANG_PROGRAM([int i;],
+                      [__sync_bool_compare_and_swap (&i, i, i);
+                       __sync_lock_test_and_set (&i, 1);
+                       __sync_lock_release (&i);])],
+     [libsanitizer_cv_sys_sync=yes],
+     [libsanitizer_cv_sys_sync=no])
+ fi])
+if test "$libsanitizer_cv_sys_sync" = "yes"; then
+  AC_DEFINE([HAVE_SYNC_FUNCTIONS], 1,
+	    [Define to 1 if you have the __sync functions])
+fi
+
+# Test for __atomic support.
+AC_CACHE_CHECK([__atomic extensions],
+[libsanitizer_cv_sys_atomic],
+[if test -n "${with_target_subdir}"; then
+   libsanitizer_cv_sys_atomic=yes
+ else
+   AC_LINK_IFELSE(
+     [AC_LANG_PROGRAM([int i;],
+     		      [__atomic_load_n (&i, __ATOMIC_ACQUIRE);
+		       __atomic_store_n (&i, 1, __ATOMIC_RELEASE);])],
+     [libsanitizer_cv_sys_atomic=yes],
+     [libsanitizer_cv_sys_atomic=no])
+ fi])
+if test "$libsanitizer_cv_sys_atomic" = "yes"; then
+  AC_DEFINE([HAVE_ATOMIC_FUNCTIONS], 1,
+	    [Define to 1 if you have the __atomic functions])
+fi
+
+# The library needs to be able to read the executable itself.  Compile
+# a file to determine the executable format.  The awk script
+# filetype.awk prints out the file type.
+AC_CACHE_CHECK([output filetype],
+[libsanitizer_cv_sys_filetype],
+[filetype=
+AC_COMPILE_IFELSE(
+  [AC_LANG_PROGRAM([int i;], [int j;])],
+  [filetype=`${AWK} -f $srcdir/../libbacktrace/filetype.awk conftest.$ac_objext`],
+  [AC_MSG_FAILURE([compiler failed])])
+libsanitizer_cv_sys_filetype=$filetype])
+
+# Match the file type to decide what files to compile.
+FORMAT_FILE=
+case "$libsanitizer_cv_sys_filetype" in
+elf*) FORMAT_FILE="elf.lo" ;;
+*) AC_MSG_WARN([could not determine output file type])
+   FORMAT_FILE="unknown.lo"
+   backtrace_supported=no
+   ;;
+esac
+AC_SUBST(FORMAT_FILE)
+
+# ELF defines.
+elfsize=
+case "$libsanitizer_cv_sys_filetype" in
+elf32) elfsize=32 ;;
+elf64) elfsize=64 ;;
+esac
+AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64])
+
+BACKTRACE_SUPPORTED=0
+if test "$backtrace_supported" = "yes"; then
+  BACKTRACE_SUPPORTED=1
+fi
+AC_SUBST(BACKTRACE_SUPPORTED)
+
+GCC_HEADER_STDINT(gstdint.h)
+
+AC_CHECK_HEADERS(sys/mman.h alloca.h)
+if test "$ac_cv_header_sys_mman_h" = "no"; then
+  have_mmap=no
+else
+  if test -n "${with_target_subdir}"; then
+    # When built as a GCC target library, we can't do a link test.  We
+    # simply assume that if we have mman.h, we have mmap.
+    have_mmap=yes
+  else
+    AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no])
+  fi
+fi
+if test "$have_mmap" = "no"; then
+  VIEW_FILE=read.lo
+  ALLOC_FILE=alloc.lo
+else
+  VIEW_FILE=mmapio.lo
+  AC_PREPROC_IFELSE([
+#include <sys/mman.h>
+#if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
+  #error no MAP_ANONYMOUS
+#endif
+], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
+fi
+AC_SUBST(VIEW_FILE)
+AC_SUBST(ALLOC_FILE)
+
+BACKTRACE_USES_MALLOC=0
+if test "$ALLOC_FILE" = "alloc.lo"; then
+  BACKTRACE_USES_MALLOC=1
+fi
+AC_SUBST(BACKTRACE_USES_MALLOC)
+
+# Don't care about thread support
+BACKTRACE_SUPPORTS_THREADS=0
+AC_SUBST(BACKTRACE_SUPPORTS_THREADS)
+
+# Check for dl_iterate_phdr.
+AC_CHECK_HEADERS(link.h)
+if test "$ac_cv_header_link_h" = "no"; then
+  have_dl_iterate_phdr=no
+else
+  # When built as a GCC target library, we can't do a link test.
+  AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes],
+		  [have_dl_iterate_phdr=no])
+  case "${host}" in
+  *-*-solaris2.10*)
+    # Avoid dl_iterate_phdr on Solaris 10, where it is in the
+    # header file but is only in -ldl.
+    have_dl_iterate_phdr=no ;;
+  esac
+fi
+if test "$have_dl_iterate_phdr" = "yes"; then
+  AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.])
+fi
+
+# Check for the fcntl function.
+if test -n "${with_target_subdir}"; then
+   case "${host}" in
+   *-*-mingw*) have_fcntl=no ;;
+   *) have_fcntl=yes ;;
+   esac
+else
+  AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no])
+fi
+if test "$have_fcntl" = "yes"; then
+  AC_DEFINE([HAVE_FCNTL], 1,
+	    [Define to 1 if you have the fcntl function])
+fi
+
+AC_CHECK_DECLS(strnlen)
+
+# Check for getexecname function.
+if test -n "${with_target_subdir}"; then
+   case "${host}" in
+   *-*-solaris2*) have_getexecname=yes ;;
+   *) have_getexecname=no ;;
+   esac
+else
+  AC_CHECK_FUNC(getexecname, [have_getexecname=yes], [have_getexecname=no])
+fi
+if test "$have_getexecname" = "yes"; then
+  AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.])
+fi
+
+AM_CONDITIONAL(LIBBACKTRACE_SUPPORTED,
+	       [test "x${BACKTRACE_SUPPORTED}x${BACKTRACE_USES_MALLOC}" = "x1x0"])
+
+AH_BOTTOM([#include "libbacktrace/backtrace-rename.h"])
+AC_CONFIG_FILES([Makefile libsanitizer.spec libbacktrace/backtrace-supported.h])
+AC_CONFIG_HEADER(config.h)
+
+AC_CONFIG_FILES(AC_FOREACH([DIR], [interception sanitizer_common libbacktrace lsan asan ubsan], [DIR/Makefile ]),
+  [cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   AS_UNSET([ml_norecursion])
+])
+
+if test "x$TSAN_SUPPORTED" = "xyes"; then
+  AC_CONFIG_FILES(AC_FOREACH([DIR], [tsan], [DIR/Makefile ]), 
+    [cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+    sed -f vpsed$$ $ac_file > tmp$$
+    mv tmp$$ $ac_file
+    rm vpsed$$
+    echo 'MULTISUBDIR =' >> $ac_file
+    ml_norecursion=yes
+    . ${multi_basedir}/config-ml.in
+    AS_UNSET([ml_norecursion])
+])
+fi
+
+AC_OUTPUT