Add default options/suppressions for LeakSanitizer.

build/sanitizers/sanitizer_options.cc

Index: build/sanitizers/sanitizer_options.cc
diff --git a/build/sanitizers/sanitizer_options.cc b/build/sanitizers/sanitizer_options.cc
index af78bf855806434a5952861cf81316590be7ce51..b4d17cb35b8d17c4ea64ea42a1b7b1375035015c 100644
--- a/build/sanitizers/sanitizer_options.cc
+++ b/build/sanitizers/sanitizer_options.cc
@@ -143,3 +143,35 @@ const char *__tsan_default_suppressions() {
 }
 
 #endif  // THREAD_SANITIZER && OS_LINUX
+
+#if defined(LEAK_SANITIZER)
+// Default options for LeakSanitizer:
+//   print_suppressions=1 - print the list of matched suppressions.
+//   strip_path_prefix=Release/../../ - prefixes up to and including this
+//     substring will be stripped from source file paths in symbolized reports.
+const char kLsanDefaultOptions[] =
+    "print_suppressions=1 strip_path_prefix=Release/../../ ";
+
+extern "C"
+__attribute__((no_sanitize_thread))

[Alexander Potapenko, 2015/02/16 10:29:11]

Did you mean __attribute__((no_sanitize_address)) ?

[earthdok, 2015/02/16 13:39:59]

I've refactored this file a bit, ptal.

+__attribute__((visibility("default")))
+// The function isn't referenced from the executable itself. Make sure it isn't
+// stripped by the linker.
+__attribute__((used))
+const char *__lsan_default_options() {
+  return kLsanDefaultOptions;
+}
+
+extern "C" char kLSanDefaultSuppressions[];
+
+extern "C"
+__attribute__((no_sanitize_thread))
+__attribute__((visibility("default")))
+// The function isn't referenced from the executable itself. Make sure it isn't
+// stripped by the linker.
+__attribute__((used))
+const char *__lsan_default_suppressions() {
+  return kLSanDefaultSuppressions;
+}
+
+#endif  // LEAK_SANITIZER