1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef ECMASCRIPT_CPU_PROFILER_H 17 #define ECMASCRIPT_CPU_PROFILER_H 18 19 #include <semaphore.h> 20 21 #include "ecmascript/cpu_profiler/profile_generator.h" 22 #include "ecmascript/cpu_profiler/profile_processor.h" 23 #include "os/mutex.h" 24 25 namespace panda::ecmascript { 26 struct CurrentProcessInfo { 27 uint64_t nowTimeStamp = 0; 28 uint64_t tts = 0; 29 pid_t pid = 0; 30 pthread_t tid = 0; 31 }; 32 33 class GcStateScope { 34 public: GcStateScope(JSThread * thread)35 inline explicit GcStateScope(JSThread *thread) 36 { 37 thread_ = thread; 38 thread_->SetGcState(true); 39 } 40 ~GcStateScope()41 inline ~GcStateScope() 42 { 43 thread_->SetGcState(false); 44 } 45 private: 46 JSThread *thread_ = nullptr; 47 }; 48 49 class CpuProfiler { 50 public: 51 static CpuProfiler *GetInstance(); 52 static void ParseMethodInfo(JSMethod *method, JSThread *thread, InterpretedFrameHandler frameHandler); 53 static void GetFrameStack(JSThread *thread); 54 static void IsNeedAndGetStack(JSThread *thread); 55 static void GetStackSignalHandler(int signal); 56 57 static CMap<JSMethod *, struct StackInfo> staticStackInfo_; 58 static sem_t sem_; 59 static CVector<JSMethod *> staticFrameStack_; 60 61 void StartCpuProfiler(const EcmaVM *vm, const std::string &fileName); 62 void StopCpuProfiler(); 63 std::string GetProfileName() const; 64 virtual ~CpuProfiler(); 65 private: 66 static CMap<std::string, int> scriptIdMap_; 67 static std::atomic<CpuProfiler*> singleton_; 68 static os::memory::Mutex synchronizationMutex_; 69 70 explicit CpuProfiler(); 71 void SetProfileStart(uint64_t nowTimeStamp); 72 void GetCurrentProcessInfo(struct CurrentProcessInfo ¤tProcessInfo); 73 bool CheckFileName(const std::string &fileName, std::string &absoluteFilePath) const; 74 75 bool isOnly_ = false; 76 int interval_ = 500; // 500:Sampling interval 500 microseconds 77 std::string fileName_ = ""; 78 ProfileGenerator *generator_ = nullptr; 79 pthread_t tid_ = 0; 80 }; 81 } // namespace panda::ecmascript 82 #endif // ECMASCRIPT_CPU_PROFILE_H