1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _LIBBACKTRACE_UNWIND_CURRENT_H 18 #define _LIBBACKTRACE_UNWIND_CURRENT_H 19 20 #include <string> 21 22 #include "BacktraceImpl.h" 23 24 #define UNW_LOCAL_ONLY 25 #include <libunwind.h> 26 27 class UnwindCurrent : public BacktraceImpl { 28 public: 29 UnwindCurrent(); 30 virtual ~UnwindCurrent(); 31 32 virtual bool Unwind(size_t num_ignore_frames, ucontext_t* ucontext); 33 34 virtual std::string GetFunctionNameRaw(uintptr_t pc, uintptr_t* offset); 35 36 bool UnwindFromContext(size_t num_ignore_frames, bool within_handler); 37 38 void GetUnwContextFromUcontext(const ucontext_t* context); 39 40 protected: 41 unw_context_t context_; 42 }; 43 44 #endif // _LIBBACKTRACE_UNWIND_CURRENT_H 45