1*0b57cec5SDimitry Andric //===-- tsan_stack_trace.h --------------------------------------*- C++ -*-===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric // 9*0b57cec5SDimitry Andric // This file is a part of ThreadSanitizer (TSan), a race detector. 10*0b57cec5SDimitry Andric // 11*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 12*0b57cec5SDimitry Andric #ifndef TSAN_STACK_TRACE_H 13*0b57cec5SDimitry Andric #define TSAN_STACK_TRACE_H 14*0b57cec5SDimitry Andric 15*0b57cec5SDimitry Andric #include "sanitizer_common/sanitizer_stacktrace.h" 16*0b57cec5SDimitry Andric #include "tsan_defs.h" 17*0b57cec5SDimitry Andric 18*0b57cec5SDimitry Andric namespace __tsan { 19*0b57cec5SDimitry Andric 20*0b57cec5SDimitry Andric // StackTrace which calls malloc/free to allocate the buffer for 21*0b57cec5SDimitry Andric // addresses in stack traces. 22*0b57cec5SDimitry Andric struct VarSizeStackTrace : public StackTrace { 23*0b57cec5SDimitry Andric uptr *trace_buffer; // Owned. 24*0b57cec5SDimitry Andric 25*0b57cec5SDimitry Andric VarSizeStackTrace(); 26*0b57cec5SDimitry Andric ~VarSizeStackTrace(); 27*0b57cec5SDimitry Andric void Init(const uptr *pcs, uptr cnt, uptr extra_top_pc = 0); 28*0b57cec5SDimitry Andric 29*0b57cec5SDimitry Andric // Reverses the current stack trace order, the top frame goes to the bottom, 30*0b57cec5SDimitry Andric // the last frame goes to the top. 31*0b57cec5SDimitry Andric void ReverseOrder(); 32*0b57cec5SDimitry Andric 33*0b57cec5SDimitry Andric private: 34*0b57cec5SDimitry Andric void ResizeBuffer(uptr new_size); 35*0b57cec5SDimitry Andric 36*0b57cec5SDimitry Andric VarSizeStackTrace(const VarSizeStackTrace &); 37*0b57cec5SDimitry Andric void operator=(const VarSizeStackTrace &); 38*0b57cec5SDimitry Andric }; 39*0b57cec5SDimitry Andric 40*0b57cec5SDimitry Andric } // namespace __tsan 41*0b57cec5SDimitry Andric 42*0b57cec5SDimitry Andric #endif // TSAN_STACK_TRACE_H 43