re PR sanitizer/60055 (Invalid binding of __tsan_default_options)

	PR sanitizer/60055
	* tsan/tsan_flags.cc (__tsan_default_options): Add
	SANITIZER_INTERFACE_ATTRIBUTE.  Backport from upstream r200747.
	* tsan/tsan_rtl.cc (__tsan::OnFinalize): Likewise.

From-SVN: r207459

libsanitizer/ChangeLog

 2014-02-04  Jakub Jelinek  <jakub@redhat.com>
 
+	PR sanitizer/60055
+	* tsan/tsan_flags.cc (__tsan_default_options): Add
+	SANITIZER_INTERFACE_ATTRIBUTE.  Backport from upstream r200747.
+	* tsan/tsan_rtl.cc (__tsan::OnFinalize): Likewise.
+
 	PR sanitizer/60038
 	* sanitizer_common/sanitizer_linux_libcdep.cc: Include
 	sanitizer_atomic.h and unistd.h.

libsanitizer/tsan/tsan_flags.cc

@@ -29,7 +29,8 @@ extern "C" const char* __tsan_default_options();
 void WEAK OverrideFlags(Flags *f) {
   (void)f;
 }
-extern "C" const char *WEAK __tsan_default_options() {
+extern "C" SANITIZER_INTERFACE_ATTRIBUTE
+const char *WEAK __tsan_default_options() {
   return "";
 }
 #endif

libsanitizer/tsan/tsan_rtl.cc

@@ -40,6 +40,7 @@ static char ctx_placeholder[sizeof(Context)] ALIGNED(64);
 #ifdef TSAN_EXTERNAL_HOOKS
 bool OnFinalize(bool failed);
 #else
+SANITIZER_INTERFACE_ATTRIBUTE
 bool WEAK OnFinalize(bool failed) {
   return failed;
 }