1 //===-- tsan_stack_trace.h --------------------------------------*- C++ -*-===//
2 //
3 // This file is distributed under the University of Illinois Open Source
4 // License. See LICENSE.TXT for details.
5 //
6 //===----------------------------------------------------------------------===//
7 //
8 // This file is a part of ThreadSanitizer (TSan), a race detector.
9 //
10 //===----------------------------------------------------------------------===//
11 #ifndef TSAN_STACK_TRACE_H
12 #define TSAN_STACK_TRACE_H
13 
14 #include "sanitizer_common/sanitizer_stacktrace.h"
15 #include "tsan_defs.h"
16 
17 namespace __tsan {
18 
19 // StackTrace which calls malloc/free to allocate the buffer for
20 // addresses in stack traces.
21 struct VarSizeStackTrace : public StackTrace {
22   uptr *trace_buffer;  // Owned.
23 
24   VarSizeStackTrace();
25   ~VarSizeStackTrace();
26   void Init(const uptr *pcs, uptr cnt, uptr extra_top_pc = 0);
27 
28   // Reverses the current stack trace order, the top frame goes to the bottom,
29   // the last frame goes to the top.
30   void ReverseOrder();
31 
32  private:
33   void ResizeBuffer(uptr new_size);
34 
35   VarSizeStackTrace(const VarSizeStackTrace &);
36   void operator=(const VarSizeStackTrace &);
37 };
38 
39 }  // namespace __tsan
40 
41 #endif  // TSAN_STACK_TRACE_H
42