1 /* 2 * Copyright (c) 2022-2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef DFX_FAULT_STACK_H 16 #define DFX_FAULT_STACK_H 17 18 #include <memory> 19 #include <vector> 20 21 #include "dfx_frame.h" 22 #include "dfx_regs.h" 23 #include "dfx_maps.h" 24 25 namespace OHOS { 26 namespace HiviewDFX { 27 struct MemoryBlockInfo { 28 uintptr_t startAddr; 29 uintptr_t nameAddr; 30 uintptr_t size; 31 std::vector<uintptr_t> content; 32 std::string name; 33 }; 34 35 // Only print first three frame stack 36 class FaultStack { 37 public: FaultStack(int32_t tid)38 explicit FaultStack(int32_t tid) : tid_(tid) {}; 39 ~FaultStack() = default; 40 41 void Print() const; 42 void PrintRegisterMemory() const; 43 bool CollectStackInfo(const std::vector<DfxFrame>& frames, bool needParseStack = false); 44 bool CreateBlockForCorruptedStack(const std::vector<DfxFrame>& frames, uintptr_t prevEndAddr, uintptr_t size); 45 #if defined(__x86_64__) 46 void CollectRegistersBlock(std::shared_ptr<DfxRegs> regs, std::shared_ptr<DfxElfMaps> maps); 47 bool ParseUnwindStack(std::shared_ptr<DfxElfMaps> maps, std::vector<DfxFrame>& frames); 48 #else 49 void CollectRegistersBlock(std::shared_ptr<DfxRegs> regs, std::shared_ptr<DfxMaps> maps); 50 bool ParseUnwindStack(std::shared_ptr<DfxMaps> maps, std::vector<DfxFrame>& frames); 51 #endif 52 53 private: 54 bool ReadTargetMemory(uintptr_t addr, uintptr_t &value) const; 55 uintptr_t AdjustAndCreateMemoryBlock(size_t index, uintptr_t prevSp, uintptr_t prevEndAddr, uintptr_t size); 56 uintptr_t PrintMemoryBlock(const MemoryBlockInfo& info, uintptr_t stackStartAddr) const; 57 MemoryBlockInfo CreateMemoryBlock(uintptr_t addr, uintptr_t offset, uintptr_t size, const std::string& name) const; 58 59 private: 60 int32_t tid_; 61 std::vector<MemoryBlockInfo> blocks_; 62 std::vector<MemoryBlockInfo> registerBlocks_; 63 }; 64 } // namespace HiviewDFX 65 } // namespace OHOS 66 #endif 67