aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/clang14-rt/lib/tsan/rtl/tsan_stack_trace.h
blob: 3eb8ce156e8358279de57fd6509cfd948e1c547e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
//===-- tsan_stack_trace.h --------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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);

  // Reverses the current stack trace order, the top frame goes to the bottom,
  // the last frame goes to the top.
  void ReverseOrder();

 private:
  void ResizeBuffer(uptr new_size);

  VarSizeStackTrace(const VarSizeStackTrace &);
  void operator=(const VarSizeStackTrace &);
};

}  // namespace __tsan

#endif  // TSAN_STACK_TRACE_H