1 //===-- tsan_stack_trace.h --------------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file is a part of ThreadSanitizer (TSan), a race detector.
11 //
12 //===----------------------------------------------------------------------===//
13 #ifndef TSAN_STACK_TRACE_H
14 #define TSAN_STACK_TRACE_H
15 
16 #include "sanitizer_common/sanitizer_stacktrace.h"
17 #include "tsan_defs.h"
18 
19 namespace __tsan {
20 
21 // StackTrace which calls malloc/free to allocate the buffer for
22 // addresses in stack traces.
23 struct VarSizeStackTrace : public StackTrace {
24   uptr *trace_buffer;  // Owned.
25 
26   VarSizeStackTrace();
27   ~VarSizeStackTrace();
28   void Init(const uptr *pcs, uptr cnt, uptr extra_top_pc = 0);
29 
30   // Reverses the current stack trace order, the top frame goes to the bottom,
31   // the last frame goes to the top.
32   void ReverseOrder();
33 
34  private:
35   void ResizeBuffer(uptr new_size);
36 
37   VarSizeStackTrace(const VarSizeStackTrace &);
38   void operator=(const VarSizeStackTrace &);
39 };
40 
41 }  // namespace __tsan
42 
43 #endif  // TSAN_STACK_TRACE_H
44