1 /* 2 * Copyright (c) 2025 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 UNWIND_ENTRY_PARSER_H 16 #define UNWIND_ENTRY_PARSER_H 17 18 #include <cinttypes> 19 #include <memory> 20 #include <securec.h> 21 22 #include "dfx_memory.h" 23 #include "unwind_context.h" 24 25 namespace OHOS { 26 namespace HiviewDFX { 27 class UnwindEntryParser { 28 public: UnwindEntryParser(const std::shared_ptr<DfxMemory> & memory)29 explicit UnwindEntryParser(const std::shared_ptr<DfxMemory>& memory) : memory_(memory) {} 30 virtual ~UnwindEntryParser() = default; 31 virtual bool Step(uintptr_t pc, const UnwindTableInfo& uti, std::shared_ptr<RegLocState> rs) = 0; GetLastErrorCode()32 uint16_t GetLastErrorCode() { return lastErrorData_.GetCode(); } GetLastErrorAddr()33 uint64_t GetLastErrorAddr() { return lastErrorData_.GetAddr(); } 34 protected: 35 virtual bool SearchEntry(uintptr_t pc, const UnwindTableInfo& uti, UnwindEntryInfo& uei) = 0; 36 UnwindErrorData lastErrorData_ {}; 37 std::shared_ptr<DfxMemory> memory_ = nullptr; 38 }; 39 } // nameapace HiviewDFX 40 } // nameapace OHOS 41 #endif 42