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1 //===-- tsan_stack_trace.h --------------------------------------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // This file is a part of ThreadSanitizer (TSan), a race detector.
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10 //
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11 //===----------------------------------------------------------------------===//
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12 #ifndef TSAN_STACK_TRACE_H
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13 #define TSAN_STACK_TRACE_H
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14
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15 #include "sanitizer_common/sanitizer_stacktrace.h"
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16 #include "tsan_defs.h"
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17
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18 namespace __tsan {
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19
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20 // StackTrace which calls malloc/free to allocate the buffer for
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21 // addresses in stack traces.
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22 struct VarSizeStackTrace : public StackTrace {
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23 uptr *trace_buffer; // Owned.
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24
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25 VarSizeStackTrace();
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26 ~VarSizeStackTrace();
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27 void Init(const uptr *pcs, uptr cnt, uptr extra_top_pc = 0);
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28
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29 // Reverses the current stack trace order, the top frame goes to the bottom,
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30 // the last frame goes to the top.
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31 void ReverseOrder();
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32
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33 private:
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34 void ResizeBuffer(uptr new_size);
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35
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36 VarSizeStackTrace(const VarSizeStackTrace &);
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37 void operator=(const VarSizeStackTrace &);
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38 };
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39
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40 } // namespace __tsan
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41
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42 #endif // TSAN_STACK_TRACE_H
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