1 /* 2 * Copyright (c) 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 DWARF_UNWINDER_H 16 #define DWARF_UNWINDER_H 17 18 #include <vector> 19 #include <libunwind.h> 20 #include "dfx_frame.h" 21 #include "dfx_symbols.h" 22 23 namespace OHOS { 24 namespace HiviewDFX { 25 class DwarfUnwinder { 26 public: 27 DwarfUnwinder(); 28 ~DwarfUnwinder(); 29 30 bool UnwindWithContext(unw_addr_space_t as, unw_context_t& context, std::shared_ptr<DfxSymbols> symbol, 31 size_t skipFrameNum); 32 bool Unwind(size_t skipFrameNum); 33 const std::vector<DfxFrame>& GetFrames() const; 34 private: 35 void UpdateFrameFuncName(unw_addr_space_t as, std::shared_ptr<DfxSymbols> symbol, DfxFrame& frame); 36 37 private: 38 std::vector<DfxFrame> frames_; 39 }; 40 } // namespace HiviewDFX 41 } // namespace OHOS 42 #endif 43