Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 26 insertions, 0 deletions

diff --git a/gcc-4.9/libsanitizer/sanitizer_common/sanitizer_stacktrace_libcdep.cc b/gcc-4.9/libsanitizer/sanitizer_common/sanitizer_stacktrace_libcdep.cc
new file mode 100644
index 000000000..ea2f9d077
--- /dev/null
+++ b/gcc-4.9/libsanitizer/sanitizer_common/sanitizer_stacktrace_libcdep.cc
@@ -0,0 +1,26 @@
+//===-- sanitizer_stacktrace_libcdep.cc -----------------------------------===//
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is shared between AddressSanitizer and ThreadSanitizer
+// run-time libraries.
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_stacktrace.h"
+
+namespace __sanitizer {
+
+void StackTrace::Unwind(uptr max_depth, uptr pc, uptr bp, uptr stack_top,
+                        uptr stack_bottom, bool request_fast_unwind) {
+  if (!WillUseFastUnwind(request_fast_unwind))
+    SlowUnwindStack(pc, max_depth);
+  else
+    FastUnwindStack(pc, bp, stack_top, stack_bottom, max_depth);
+
+  top_frame_bp = size ? bp : 0;
+}
+
+}  // namespace __sanitizer