| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef SIMPLE_PERF_THREAD_TREE_H_ |
| #define SIMPLE_PERF_THREAD_TREE_H_ |
| |
| #include <limits.h> |
| #include <stdint.h> |
| #include <set> |
| #include "dso.h" |
| |
| struct MapEntry { |
| uint64_t start_addr; |
| uint64_t len; |
| uint64_t pgoff; |
| uint64_t time; // Map creation time. |
| DsoEntry* dso; |
| }; |
| |
| struct MapComparator { |
| bool operator()(const MapEntry* map1, const MapEntry* map2) const; |
| }; |
| |
| struct ThreadEntry { |
| int pid; |
| int tid; |
| const char* comm; // It always refers to the latest comm. |
| std::set<MapEntry*, MapComparator> maps; |
| }; |
| |
| class ThreadTree { |
| public: |
| ThreadTree() : unknown_dso_(DSO_ELF_FILE, "unknown") { |
| unknown_map_ = MapEntry{ |
| 0, // start_addr |
| ULLONG_MAX, // len |
| 0, // pgoff |
| 0, // time |
| &unknown_dso_, // dso |
| }; |
| unknown_symbol_ = SymbolEntry{ |
| "unknown", // name |
| 0, // addr |
| ULLONG_MAX, // len |
| }; |
| } |
| |
| void AddThread(int pid, int tid, const std::string& comm); |
| void ForkThread(int pid, int tid, int ppid, int ptid); |
| ThreadEntry* FindThreadOrNew(int pid, int tid); |
| void AddKernelMap(uint64_t start_addr, uint64_t len, uint64_t pgoff, uint64_t time, |
| const std::string& filename); |
| void AddThreadMap(int pid, int tid, uint64_t start_addr, uint64_t len, uint64_t pgoff, |
| uint64_t time, const std::string& filename); |
| const MapEntry* FindMap(const ThreadEntry* thread, uint64_t ip, bool in_kernel); |
| const SymbolEntry* FindSymbol(const MapEntry* map, uint64_t ip); |
| const MapEntry* UnknownMap() const { |
| return &unknown_map_; |
| } |
| |
| private: |
| DsoEntry* FindKernelDsoOrNew(const std::string& filename); |
| DsoEntry* FindUserDsoOrNew(const std::string& filename); |
| |
| std::unordered_map<int, std::unique_ptr<ThreadEntry>> thread_tree_; |
| std::vector<std::unique_ptr<std::string>> thread_comm_storage_; |
| |
| std::set<MapEntry*, MapComparator> kernel_map_tree_; |
| std::vector<std::unique_ptr<MapEntry>> map_storage_; |
| MapEntry unknown_map_; |
| |
| std::unique_ptr<DsoEntry> kernel_dso_; |
| std::unordered_map<std::string, std::unique_ptr<DsoEntry>> module_dso_tree_; |
| std::unordered_map<std::string, std::unique_ptr<DsoEntry>> user_dso_tree_; |
| DsoEntry unknown_dso_; |
| SymbolEntry unknown_symbol_; |
| }; |
| |
| struct Record; |
| |
| void BuildThreadTree(const Record& record, ThreadTree* thread_tree); |
| |
| #endif // SIMPLE_PERF_THREAD_TREE_H_ |