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 * Description: KernelSymbolsParser class define 16 */ 17 #ifndef KERNEL_SYMBOLS_PARSER_H 18 #define KERNEL_SYMBOLS_PARSER_H 19 20 #include <functional> 21 #include <string> 22 #include <vector> // for std::vector 23 #include "ftrace_namespace.h" 24 25 FTRACE_NS_BEGIN 26 27 struct KernelSymbol { 28 uint64_t addr = 0; 29 char type = 0; 30 std::string name; 31 }; 32 33 class KernelSymbolsParser { 34 public: 35 KernelSymbolsParser(); 36 ~KernelSymbolsParser(); 37 38 bool Parse(const std::string& kallsyms); 39 void Accept(const std::function<void(const KernelSymbol&)>& visitor); 40 41 private: 42 DISALLOW_COPY_AND_MOVE(KernelSymbolsParser); 43 static bool IsValidTextSymbol(const KernelSymbol& a); 44 static bool CompareSymbolInfo(const KernelSymbol& a, const KernelSymbol& b); 45 46 private: 47 std::vector<KernelSymbol> kernelSymbols_; 48 }; 49 FTRACE_NS_END 50 51 #endif // KERNEL_SYMBOLS_PARSER_H 52