1 /* 2 * Copyright (C) 2017 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_UNWINDSTACK_MAP_H 18 #define _LIBBACKTRACE_UNWINDSTACK_MAP_H 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 23 #include <memory> 24 #include <mutex> 25 #include <unordered_map> 26 #include <vector> 27 28 #include <backtrace/Backtrace.h> 29 #include <backtrace/BacktraceMap.h> 30 #if !defined(NO_LIBDEXFILE_SUPPORT) 31 #include <unwindstack/DexFiles.h> 32 #endif 33 #include <unwindstack/JitDebug.h> 34 #include <unwindstack/Maps.h> 35 36 // Forward declarations. 37 class UnwindDexFile; 38 39 class UnwindStackMap : public BacktraceMap { 40 public: 41 explicit UnwindStackMap(pid_t pid); 42 ~UnwindStackMap() = default; 43 44 bool Build() override; 45 46 void FillIn(uint64_t addr, backtrace_map_t* map) override; 47 48 virtual std::string GetFunctionName(uint64_t pc, uint64_t* offset) override; 49 virtual std::shared_ptr<unwindstack::Memory> GetProcessMemory() override final; 50 51 unwindstack::Maps* stack_maps() { return stack_maps_.get(); } 52 53 const std::shared_ptr<unwindstack::Memory>& process_memory() { return process_memory_; } 54 55 unwindstack::JitDebug* GetJitDebug() { return jit_debug_.get(); } 56 57 #if !defined(NO_LIBDEXFILE_SUPPORT) 58 unwindstack::DexFiles* GetDexFiles() { return dex_files_.get(); } 59 #endif 60 61 protected: 62 uint64_t GetLoadBias(size_t index) override; 63 64 std::unique_ptr<unwindstack::Maps> stack_maps_; 65 std::shared_ptr<unwindstack::Memory> process_memory_; 66 std::unique_ptr<unwindstack::JitDebug> jit_debug_; 67 #if !defined(NO_LIBDEXFILE_SUPPORT) 68 std::unique_ptr<unwindstack::DexFiles> dex_files_; 69 #endif 70 }; 71 72 class UnwindStackOfflineMap : public UnwindStackMap { 73 public: 74 UnwindStackOfflineMap(pid_t pid); 75 ~UnwindStackOfflineMap() = default; 76 77 bool Build() override; 78 79 bool Build(const std::vector<backtrace_map_t>& maps); 80 81 bool CreateProcessMemory(const backtrace_stackinfo_t& stack); 82 83 private: 84 unwindstack::MemoryOfflineBuffer* memory_ = nullptr; 85 }; 86 87 #endif // _LIBBACKTRACE_UNWINDSTACK_MAP_H 88
