| /* |
| * 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_ENVIRONMENT_H_ |
| #define SIMPLE_PERF_ENVIRONMENT_H_ |
| |
| #include <sys/types.h> |
| |
| #include <functional> |
| #include <set> |
| #include <string> |
| #include <vector> |
| |
| #include "build_id.h" |
| |
| std::vector<int> GetOnlineCpus(); |
| std::vector<int> GetCpusFromString(const std::string& s); |
| |
| constexpr char DEFAULT_KERNEL_MMAP_NAME[] = "[kernel.kallsyms]_text"; |
| |
| struct KernelMmap { |
| std::string name; |
| uint64_t start_addr; |
| uint64_t len; |
| std::string filepath; |
| }; |
| |
| void GetKernelAndModuleMmaps(KernelMmap* kernel_mmap, std::vector<KernelMmap>* module_mmaps); |
| |
| struct ThreadComm { |
| pid_t pid, tid; |
| std::string comm; |
| }; |
| |
| bool GetThreadComms(std::vector<ThreadComm>* thread_comms); |
| |
| constexpr char DEFAULT_EXECNAME_FOR_THREAD_MMAP[] = "//anon"; |
| |
| struct ThreadMmap { |
| uint64_t start_addr; |
| uint64_t len; |
| uint64_t pgoff; |
| std::string name; |
| bool executable; |
| }; |
| |
| bool GetThreadMmapsInProcess(pid_t pid, std::vector<ThreadMmap>* thread_mmaps); |
| |
| constexpr char DEFAULT_KERNEL_FILENAME_FOR_BUILD_ID[] = "[kernel.kallsyms]"; |
| |
| bool GetKernelBuildId(BuildId* build_id); |
| bool GetModuleBuildId(const std::string& module_name, BuildId* build_id); |
| |
| bool GetValidThreadsFromProcessString(const std::string& pid_str, std::set<pid_t>* tid_set); |
| bool GetValidThreadsFromThreadString(const std::string& tid_str, std::set<pid_t>* tid_set); |
| |
| bool GetExecPath(std::string* exec_path); |
| |
| // Expose the following functions for unit tests. |
| struct KernelSymbol { |
| uint64_t addr; |
| char type; |
| const char* name; |
| const char* module; // If nullptr, the symbol is not in a kernel module. |
| }; |
| |
| bool ProcessKernelSymbols(const std::string& symbol_file, |
| std::function<bool(const KernelSymbol&)> callback); |
| bool CheckPerfEventLimit(); |
| |
| #endif // SIMPLE_PERF_ENVIRONMENT_H_ |