Update 4.8.1 to 4.8.3.

My previous drop was the wrong version. The platform mingw is
currently using 4.8.3, not 4.8.1 (not sure how I got that wrong).

From ftp://ftp.gnu.org/gnu/gcc/gcc-4.8.3/gcc-4.8.3.tar.bz2.

Bug: http://b/26523949
Change-Id: Id85f1bdcbbaf78c7d0b5a69e74c798a08f341c35

1 files changed, 64 insertions, 0 deletions

diff --git a/gcc-4.8.3/libsanitizer/asan/asan_stack.h b/gcc-4.8.3/libsanitizer/asan/asan_stack.h
new file mode 100644
index 000000000..6a5ffc934
--- /dev/null
+++ b/gcc-4.8.3/libsanitizer/asan/asan_stack.h
@@ -0,0 +1,64 @@
+//===-- asan_stack.h --------------------------------------------*- C++ -*-===//
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of AddressSanitizer, an address sanity checker.
+//
+// ASan-private header for asan_stack.cc.
+//===----------------------------------------------------------------------===//
+#ifndef ASAN_STACK_H
+#define ASAN_STACK_H
+
+#include "sanitizer_common/sanitizer_stacktrace.h"
+#include "asan_flags.h"
+
+namespace __asan {
+
+void GetStackTrace(StackTrace *stack, uptr max_s, uptr pc, uptr bp, bool fast);
+void PrintStack(StackTrace *stack);
+
+}  // namespace __asan
+
+// Get the stack trace with the given pc and bp.
+// The pc will be in the position 0 of the resulting stack trace.
+// The bp may refer to the current frame or to the caller's frame.
+// fast_unwind is currently unused.
+#define GET_STACK_TRACE_WITH_PC_AND_BP(max_s, pc, bp, fast)     \
+  StackTrace stack;                                             \
+  GetStackTrace(&stack, max_s, pc, bp, fast)
+
+// NOTE: A Rule of thumb is to retrieve stack trace in the interceptors
+// as early as possible (in functions exposed to the user), as we generally
+// don't want stack trace to contain functions from ASan internals.
+
+#define GET_STACK_TRACE(max_size, fast)                       \
+  GET_STACK_TRACE_WITH_PC_AND_BP(max_size,                    \
+      StackTrace::GetCurrentPc(), GET_CURRENT_FRAME(), fast)
+
+#define GET_STACK_TRACE_FATAL(pc, bp)                                 \
+  GET_STACK_TRACE_WITH_PC_AND_BP(kStackTraceMax, pc, bp,              \
+                                 flags()->fast_unwind_on_fatal)
+
+#define GET_STACK_TRACE_FATAL_HERE                           \
+  GET_STACK_TRACE(kStackTraceMax, flags()->fast_unwind_on_fatal)
+
+#define GET_STACK_TRACE_THREAD                              \
+  GET_STACK_TRACE(kStackTraceMax, true)
+
+#define GET_STACK_TRACE_MALLOC                             \
+  GET_STACK_TRACE(flags()->malloc_context_size,            \
+                  flags()->fast_unwind_on_malloc)
+
+#define GET_STACK_TRACE_FREE GET_STACK_TRACE_MALLOC
+
+#define PRINT_CURRENT_STACK()                    \
+  {                                              \
+    GET_STACK_TRACE(kStackTraceMax,              \
+      flags()->fast_unwind_on_fatal);            \
+    PrintStack(&stack);                          \
+  }
+
+#endif  // ASAN_STACK_H