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 #ifndef EBPF_BASE_H 16 #define EBPF_BASE_H 17 #include <algorithm> 18 #include <set> 19 #include <string> 20 #include "double_map.h" 21 #include "ebpf_data_reader.h" 22 #include "ebpf_data_structure.h" 23 #include "event_parser_base.h" 24 #include "string_help.h" 25 #include "string_to_numerical.h" 26 #include "symbols_file.h" 27 #include "ts_common.h" 28 29 namespace SysTuning { 30 namespace TraceStreamer { 31 using namespace SysTuning::base; 32 using namespace SysTuning::EbpfStdtype; 33 using namespace OHOS::Developtools::HiPerf; 34 class EbpfBase : virtual public EventParserBase { 35 public: 36 EbpfBase(TraceDataCache* dataCache, const TraceStreamerFilters* ctx); 37 ~EbpfBase(); 38 bool InitEbpfDataParser(EbpfDataReader* reader); 39 bool EBPFReloadElfSymbolTable(const std::vector<std::unique_ptr<SymbolsFile>>& symbolsFiles); 40 41 protected: 42 void ParseCallStackData(const uint64_t* userIpsAddr, uint16_t count, uint32_t pid, uint32_t callId); 43 DataIndex GetSymbolNameIndexFromSymVaddr(const ElfEventFixedHeader* elfHeaderAddr, uint64_t symVaddr); 44 EbpfSymbolInfo GetEbpfSymbolInfo(uint32_t pid, uint64_t ip); 45 EbpfSymbolInfo GetSymbolNameIndexFromElfSym(uint32_t pid, uint64_t ip); 46 template <typename StartToMapsAddr> 47 void GetSymbolSave(EbpfSymbolInfo& ebpfSymbolInfo, StartToMapsAddr& startToMapsAddr, uint32_t pid, uint64_t ip); 48 void UpdateFilePathIndexToPidAndIpMap(DataIndex filePathIndex, uint32_t pid, uint64_t ip); 49 DataIndex ConvertToHexTextIndex(uint64_t number); 50 template <class T> 51 void UpdateFilePathIndexAndStValueToSymAddrMap(T* firstSymbolAddr, const int size, uint32_t filePathIndex); 52 template <class T> 53 void GetSymbolStartIndex(T* elfSym, uint32_t& symbolStart, uint64_t symVaddr); 54 ClockId clockId_ = INVALID_UINT32; 55 std::hash<std::string_view> hashFun_; 56 EbpfDataReader* reader_ = nullptr; 57 DoubleMap<uint32_t, uint64_t, EbpfSymbolInfo> pidAndIpToEbpfSymbolInfo_; 58 std::map<DataIndex, std::shared_ptr<std::set<std::tuple<uint32_t, uint64_t>>>> filePathIndexToPidAndIpMap_ = {}; 59 std::map<DataIndex, uint64_t> ipStrIndexToIpMap_ = {}; 60 std::map<uint32_t, uint32_t> callIdToPid_ = {}; 61 DoubleMap<uint32_t, uint64_t, const uint8_t*> filePathIndexAndStValueToSymAddr_; 62 std::map<DataIndex, std::shared_ptr<ElfSymbolTable>> filePathIndexToImportSymbolTableMap_ = {}; 63 DoubleMap<uint32_t, uint64_t, uint64_t> pidAndipsToCallId_; 64 uint64_t callChainId_ = 0; 65 66 private: 67 std::unordered_map<DataIndex, std::shared_ptr<std::set<size_t>>> filePathIndexToCallStackRowMap_ = {}; 68 }; 69 } // namespace TraceStreamer 70 } // namespace SysTuning 71 #endif // EBPF_BASE_H 72