vendor/compiler-rt/compiler-rt-r224034

1 files changed, 39 insertions, 0 deletions

diff --git a/lib/tsan/rtl/tsan_stack_trace.h b/lib/tsan/rtl/tsan_stack_trace.h
new file mode 100644
index 0000000000000..5bf89bb7584f8
--- /dev/null
+++ b/lib/tsan/rtl/tsan_stack_trace.h
@@ -0,0 +1,39 @@
+//===-- tsan_stack_trace.h --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of ThreadSanitizer (TSan), a race detector.
+//
+//===----------------------------------------------------------------------===//
+#ifndef TSAN_STACK_TRACE_H
+#define TSAN_STACK_TRACE_H
+
+#include "sanitizer_common/sanitizer_stacktrace.h"
+#include "tsan_defs.h"
+
+namespace __tsan {
+
+// StackTrace which calls malloc/free to allocate the buffer for
+// addresses in stack traces.
+struct VarSizeStackTrace : public StackTrace {
+  uptr *trace_buffer;  // Owned.
+
+  VarSizeStackTrace();
+  ~VarSizeStackTrace();
+  void Init(const uptr *pcs, uptr cnt, uptr extra_top_pc = 0);
+
+ private:
+  void ResizeBuffer(uptr new_size);
+
+  VarSizeStackTrace(const VarSizeStackTrace &);
+  void operator=(const VarSizeStackTrace &);
+};
+
+}  // namespace __tsan
+
+#endif  // TSAN_STACK_TRACE_H