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/Elf.h> 34 #include <unwindstack/JitDebug.h> 35 #include <unwindstack/Maps.h> 36 37 // Forward declarations. 38 class UnwindDexFile; 39 40 class UnwindStackMap : public BacktraceMap { 41 public: 42 explicit UnwindStackMap(pid_t pid); 43 ~UnwindStackMap() = default; 44 45 bool Build() override; 46 47 void FillIn(uint64_t addr, backtrace_map_t* map) override; 48 49 virtual std::string GetFunctionName(uint64_t pc, uint64_t* offset) override; 50 virtual std::shared_ptr<unwindstack::Memory> GetProcessMemory() override final; 51 stack_maps()52 unwindstack::Maps* stack_maps() { return stack_maps_.get(); } 53 process_memory()54 const std::shared_ptr<unwindstack::Memory>& process_memory() { return process_memory_; } 55 GetJitDebug()56 unwindstack::JitDebug* GetJitDebug() { return jit_debug_.get(); } 57 58 #if !defined(NO_LIBDEXFILE_SUPPORT) GetDexFiles()59 unwindstack::DexFiles* GetDexFiles() { return dex_files_.get(); } 60 #endif 61 SetArch(unwindstack::ArchEnum arch)62 void SetArch(unwindstack::ArchEnum arch) { arch_ = arch; } 63 64 protected: 65 uint64_t GetLoadBias(size_t index) override; 66 67 std::unique_ptr<unwindstack::Maps> stack_maps_; 68 std::shared_ptr<unwindstack::Memory> process_memory_; 69 std::unique_ptr<unwindstack::JitDebug> jit_debug_; 70 #if !defined(NO_LIBDEXFILE_SUPPORT) 71 std::unique_ptr<unwindstack::DexFiles> dex_files_; 72 #endif 73 74 unwindstack::ArchEnum arch_ = unwindstack::ARCH_UNKNOWN; 75 }; 76 77 class UnwindStackOfflineMap : public UnwindStackMap { 78 public: 79 UnwindStackOfflineMap(pid_t pid); 80 ~UnwindStackOfflineMap() = default; 81 82 bool Build() override; 83 84 bool Build(const std::vector<backtrace_map_t>& maps); 85 86 bool CreateProcessMemory(const backtrace_stackinfo_t& stack); 87 88 private: 89 unwindstack::MemoryOfflineBuffer* memory_ = nullptr; 90 }; 91 92 #endif // _LIBBACKTRACE_UNWINDSTACK_MAP_H 93