libsanitizer/tsan/tsan_stack_trace.h

   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