re PR sanitizer/59136 (llvm-symbolizer shouldn't be started always)

	PR sanitizer/59136
libsanitizer/
	* sanitizer_common/Makefile.am (AM_CXXFLAGS): If
	LIBBACKTRACE_SUPPORTED add -DSANITIZER_LIBBACKTRACE
	and -I/-include flags.
	* lsan/Makefile.am (liblsan_la_LIBADD): Add
	libsanitizer_libbacktrace.la if LIBBACKTRACE_SUPPORTED.
	* tsan/Makefile.am (libtsan_la_LIBADD): Likewise.
	* ubsan/Makefile.am (libubsan_la_LIBADD): Likewise.
	* asan/Makefile.am (libasan_la_LIBADD): Likewise.
	* Makefile.am (SUBDIRS): If LIBBACKTRACE_SUPPORTED add
	libbacktrace.
	* README.gcc: Document that also lsan and ubsan are
	maintained in compiler-rt upstream.
	* libbacktrace/Makefile.am: New file.
	* libbacktrace/backtrace-rename.h: New file.
	* libbacktrace/backtrace-supported.h.in: New file.
	* libbacktrace/bridge.cc: New file.
	* configure.ac: Add tests needed for libbacktrace build
	within libsanitizer.
	* sanitizer_common/Makefile.in: Regenerated.
	* lsan/Makefile.in: Regenerated.
	* tsan/Makefile.in: Regenerated.
	* ubsan/Makefile.in: Regenerated.
	* libbacktrace/Makefile.in: Generated.
	* config.h.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
	* interception/Makefile.in: Regenerated.
	* asan/Makefile.in: Regenerated.
	* aclocal.m4: Regenerated.
testsuite/
	* c-c++-common/asan/strip-path-prefix-1.c: Allow also the
	filename:line instead of (modulename+offset) form with stripped
	initial / from the filename.

From-SVN: r206475

5 files changed, 921 insertions, 0 deletions

diff --git a/libsanitizer/libbacktrace/Makefile.am b/libsanitizer/libbacktrace/Makefile.am
new file mode 100644
index 00000000000..bde141cadd6
--- /dev/null
+++ b/libsanitizer/libbacktrace/Makefile.am
@@ -0,0 +1,78 @@
+# Makefile.am -- Backtrace in libsanitizer Makefile.
+# Copyright (C) 2012-2013 Free Software Foundation, Inc.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+
+#     (1) Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer. 
+
+#     (2) Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in
+#     the documentation and/or other materials provided with the
+#     distribution.  
+
+#     (3) The name of the author may not be used to
+#     endorse or promote products derived from this software without
+#     specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+ACLOCAL_AMFLAGS = -I ../.. -I ../../config
+
+AM_CPPFLAGS = -I $(top_srcdir)/../include -I $(top_srcdir)/../libgcc \
+	-I ../../libgcc -I .. -I $(top_srcdir) -I $(top_srcdir)/../libbacktrace
+
+WARN_FLAGS = -W -Wall -Wwrite-strings -Wmissing-format-attribute \
+	     -Wcast-qual -Werror
+C_WARN_FLAGS = $(WARN_FLAGS) -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
+CXX_WARN_FLAGS = $(WARN_FLAGS) -Wno-unused-parameter
+AM_CFLAGS = $(C_WARN_FLAGS)
+AM_CXXFLAGS = $(CXX_WARN_FLAGS) -fno-rtti -fno-exceptions
+
+noinst_LTLIBRARIES = libsanitizer_libbacktrace.la
+
+libsanitizer_libbacktrace_la_SOURCES = \
+	../../libbacktrace/backtrace.h \
+	../../libbacktrace/atomic.c \
+	../../libbacktrace/dwarf.c \
+	../../libbacktrace/fileline.c \
+	../../libbacktrace/internal.h \
+	../../libbacktrace/posix.c \
+	../../libbacktrace/state.c \
+	bridge.cc
+
+FORMAT_FILES = \
+	../../libbacktrace/elf.c \
+	../../libbacktrace/unknown.c
+
+VIEW_FILES = \
+	../../libbacktrace/read.c \
+	../../libbacktrace/mmapio.c
+
+ALLOC_FILES = \
+	../../libbacktrace/alloc.c \
+	../../libbacktrace/mmap.c
+
+EXTRA_libsanitizer_libbacktrace_la_SOURCES = \
+	$(FORMAT_FILES) \
+	$(VIEW_FILES) \
+	$(ALLOC_FILES)
+
+libsanitizer_libbacktrace_la_LIBADD = \
+	$(FORMAT_FILE) \
+	$(VIEW_FILE) \
+	$(ALLOC_FILE)
+
+libsanitizer_libbacktrace_la_DEPENDENCIES = $(libsanitizer_libbacktrace_la_LIBADD)
diff --git a/libsanitizer/libbacktrace/Makefile.in b/libsanitizer/libbacktrace/Makefile.in
new file mode 100644
index 00000000000..efbf6188d38
--- /dev/null
+++ b/libsanitizer/libbacktrace/Makefile.in
@@ -0,0 +1,669 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am -- Backtrace in libsanitizer Makefile.
+# Copyright (C) 2012-2013 Free Software Foundation, Inc.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+
+#     (1) Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer. 
+
+#     (2) Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in
+#     the documentation and/or other materials provided with the
+#     distribution.  
+
+#     (3) The name of the author may not be used to
+#     endorse or promote products derived from this software without
+#     specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+target_triplet = @target@
+subdir = libbacktrace
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(srcdir)/backtrace-supported.h.in
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
+	$(top_srcdir)/../config/depstand.m4 \
+	$(top_srcdir)/../config/lead-dot.m4 \
+	$(top_srcdir)/../config/libstdc++-raw-cxx.m4 \
+	$(top_srcdir)/../config/multi.m4 \
+	$(top_srcdir)/../config/override.m4 \
+	$(top_srcdir)/../config/stdint.m4 \
+	$(top_srcdir)/../ltoptions.m4 $(top_srcdir)/../ltsugar.m4 \
+	$(top_srcdir)/../ltversion.m4 $(top_srcdir)/../lt~obsolete.m4 \
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+mkinstalldirs = $(SHELL) $(top_srcdir)/../mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES = backtrace-supported.h
+CONFIG_CLEAN_VPATH_FILES =
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+am__DEPENDENCIES_1 =
+am_libsanitizer_libbacktrace_la_OBJECTS = atomic.lo dwarf.lo \
+	fileline.lo posix.lo state.lo bridge.lo
+libsanitizer_libbacktrace_la_OBJECTS =  \
+	$(am_libsanitizer_libbacktrace_la_OBJECTS)
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+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
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+	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
+	$(LDFLAGS) -o $@
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=compile $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
+	$(LDFLAGS) -o $@
+SOURCES = $(libsanitizer_libbacktrace_la_SOURCES) \
+	$(EXTRA_libsanitizer_libbacktrace_la_SOURCES)
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+
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+	     -Wcast-qual -Werror
+
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+noinst_LTLIBRARIES = libsanitizer_libbacktrace.la
+libsanitizer_libbacktrace_la_SOURCES = \
+	../../libbacktrace/backtrace.h \
+	../../libbacktrace/atomic.c \
+	../../libbacktrace/dwarf.c \
+	../../libbacktrace/fileline.c \
+	../../libbacktrace/internal.h \
+	../../libbacktrace/posix.c \
+	../../libbacktrace/state.c \
+	bridge.cc
+
+FORMAT_FILES = \
+	../../libbacktrace/elf.c \
+	../../libbacktrace/unknown.c
+
+VIEW_FILES = \
+	../../libbacktrace/read.c \
+	../../libbacktrace/mmapio.c
+
+ALLOC_FILES = \
+	../../libbacktrace/alloc.c \
+	../../libbacktrace/mmap.c
+
+EXTRA_libsanitizer_libbacktrace_la_SOURCES = \
+	$(FORMAT_FILES) \
+	$(VIEW_FILES) \
+	$(ALLOC_FILES)
+
+libsanitizer_libbacktrace_la_LIBADD = \
+	$(FORMAT_FILE) \
+	$(VIEW_FILE) \
+	$(ALLOC_FILE)
+
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+
+.SUFFIXES:
+.SUFFIXES: .c .cc .lo .o .obj
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign libbacktrace/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign libbacktrace/Makefile
+.PRECIOUS: Makefile
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+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
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+
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+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libsanitizer_libbacktrace.la: $(libsanitizer_libbacktrace_la_OBJECTS) $(libsanitizer_libbacktrace_la_DEPENDENCIES) 
+	$(CXXLINK)  $(libsanitizer_libbacktrace_la_OBJECTS) $(libsanitizer_libbacktrace_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mmap.Plo@am__quote@
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+
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+	-rm -f *.lo
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+	-rm -rf .libs _libs
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
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+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
+tags: TAGS
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+		$(TAGS_FILES) $(LISP)
+	set x; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
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+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	shift; \
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diff --git a/libsanitizer/libbacktrace/backtrace-rename.h b/libsanitizer/libbacktrace/backtrace-rename.h
new file mode 100644
index 00000000000..08402c8f8c6
--- /dev/null
+++ b/libsanitizer/libbacktrace/backtrace-rename.h
@@ -0,0 +1,41 @@
+/* Ensure we don't pollute application namespace.  */
+#define backtrace_alloc __asan_backtrace_alloc
+#define backtrace_close __asan_backtrace_close
+#define backtrace_create_state __asan_backtrace_create_state
+#define backtrace_dwarf_add __asan_backtrace_dwarf_add
+#define backtrace_free __asan_backtrace_free
+#define backtrace_get_view __asan_backtrace_get_view
+#define backtrace_initialize __asan_backtrace_initialize
+#define backtrace_open __asan_backtrace_open
+#define backtrace_pcinfo __asan_backtrace_pcinfo
+#define backtrace_release_view __asan_backtrace_release_view
+#define backtrace_syminfo __asan_backtrace_syminfo
+#define backtrace_vector_finish __asan_backtrace_vector_finish
+#define backtrace_vector_grow __asan_backtrace_vector_grow
+#define backtrace_vector_release __asan_backtrace_vector_release
+
+#ifndef __cplusplus
+
+#include <string.h>
+
+extern void *__asan_internal_memcpy (void *, const void *, size_t);
+extern void *__asan_internal_memset (void *, int, size_t);
+extern int __asan_internal_strcmp (const char *, const char *);
+extern size_t __asan_internal_strlen (const char *);
+extern size_t __asan_internal_strnlen (const char *, size_t);
+
+#undef memcpy
+#undef memset
+#undef strcmp
+#undef strlen
+#undef strnlen
+
+#define memcpy(x,y,z) __asan_internal_memcpy (x, y, z)
+#define memset(x,y,z) __asan_internal_memset (x, y, z)
+#define strcmp(x,y) __asan_internal_strcmp (x, y)
+#define strlen(x) __asan_internal_strlen (x)
+#ifdef HAVE_DECL_STRNLEN
+#define strnlen(x,y) __asan_internal_strnlen (x, y)
+#endif
+
+#endif
diff --git a/libsanitizer/libbacktrace/backtrace-supported.h.in b/libsanitizer/libbacktrace/backtrace-supported.h.in
new file mode 100644
index 00000000000..c615f6406ab
--- /dev/null
+++ b/libsanitizer/libbacktrace/backtrace-supported.h.in
@@ -0,0 +1,61 @@
+/* backtrace-supported.h.in -- Whether stack backtrace is supported.
+   Copyright (C) 2012-2013 Free Software Foundation, Inc.
+   Written by Ian Lance Taylor, Google.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    (1) Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer. 
+
+    (2) Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.  
+    
+    (3) The name of the author may not be used to
+    endorse or promote products derived from this software without
+    specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.  */
+
+/* The file backtrace-supported.h.in is used by configure to generate
+   the file backtrace-supported.h.  The file backtrace-supported.h may
+   be #include'd to see whether the backtrace library will be able to
+   get a backtrace and produce symbolic information.  */
+
+
+/* BACKTRACE_SUPPORTED will be #define'd as 1 if the backtrace library
+   should work, 0 if it will not.  Libraries may #include this to make
+   other arrangements.  */
+
+#define BACKTRACE_SUPPORTED @BACKTRACE_SUPPORTED@
+
+/* BACKTRACE_USES_MALLOC will be #define'd as 1 if the backtrace
+   library will call malloc as it works, 0 if it will call mmap
+   instead.  This may be used to determine whether it is safe to call
+   the backtrace functions from a signal handler.  In general this
+   only applies to calls like backtrace and backtrace_pcinfo.  It does
+   not apply to backtrace_simple, which never calls malloc.  It does
+   not apply to backtrace_print, which always calls fprintf and
+   therefore malloc.  */
+
+#define BACKTRACE_USES_MALLOC @BACKTRACE_USES_MALLOC@
+
+/* BACKTRACE_SUPPORTS_THREADS will be #define'd as 1 if the backtrace
+   library is configured with threading support, 0 if not.  If this is
+   0, the threaded parameter to backtrace_create_state must be passed
+   as 0.  */
+
+#define BACKTRACE_SUPPORTS_THREADS @BACKTRACE_SUPPORTS_THREADS@
diff --git a/libsanitizer/libbacktrace/bridge.cc b/libsanitizer/libbacktrace/bridge.cc
new file mode 100644
index 00000000000..3f95898aa09
--- /dev/null
+++ b/libsanitizer/libbacktrace/bridge.cc
@@ -0,0 +1,72 @@
+/* bridge.cc -- extern "C" wrappers around sanitizer_common APIs.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   Written by Jakub Jelinek, Red Hat, Inc.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    (1) Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer. 
+
+    (2) Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.  
+    
+    (3) The name of the author may not be used to
+    endorse or promote products derived from this software without
+    specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.  */
+
+#include "config.h"
+
+#include <string.h>
+
+#include "sanitizer_common/sanitizer_allocator_internal.h"
+
+extern "C"
+{
+
+void *
+__asan_internal_memcpy (void *dest, const void *src, size_t n)
+{
+  return __sanitizer::internal_memcpy (dest, src, n);
+}
+
+void *
+__asan_internal_memset (void *dest, int c, size_t n)
+{
+  return __sanitizer::internal_memset (dest, c, n);
+}
+
+int
+__asan_internal_strcmp (const char *s1, const char *s2)
+{
+  return __sanitizer::internal_strcmp (s1, s2);
+}
+
+size_t
+__asan_internal_strlen (const char *str)
+{
+  return __sanitizer::internal_strlen (str);
+}
+
+size_t
+__asan_internal_strnlen (const char *str, size_t n)
+{
+  return __sanitizer::internal_strnlen (str, n);
+}
+
+}