1 //===- FuzzerDataFlowTrace.h - Internal header for the Fuzzer ---*- C++ -* ===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // fuzzer::DataFlowTrace; reads and handles a data-flow trace. 10 // 11 // A data flow trace is generated by e.g. dataflow/DataFlow.cpp 12 // and is stored on disk in a separate directory. 13 // 14 // The trace dir contains a file 'functions.txt' which lists function names, 15 // oner per line, e.g. 16 // ==> functions.txt <== 17 // Func2 18 // LLVMFuzzerTestOneInput 19 // Func1 20 // 21 // All other files in the dir are the traces, see dataflow/DataFlow.cpp. 22 // The name of the file is sha1 of the input used to generate the trace. 23 // 24 // Current status: 25 // the data is parsed and the summary is printed, but the data is not yet 26 // used in any other way. 27 //===----------------------------------------------------------------------===// 28 29 #ifndef LLVM_FUZZER_DATA_FLOW_TRACE 30 #define LLVM_FUZZER_DATA_FLOW_TRACE 31 32 #include "FuzzerDefs.h" 33 34 #include <unordered_map> 35 #include <vector> 36 #include <string> 37 38 namespace fuzzer { 39 class DataFlowTrace { 40 public: 41 void Init(const std::string &DirPath, const std::string &FocusFunction); 42 void Clear() { Traces.clear(); } 43 const Vector<uint8_t> *Get(const std::string &InputSha1) const { 44 auto It = Traces.find(InputSha1); 45 if (It != Traces.end()) 46 return &It->second; 47 return nullptr; 48 } 49 50 private: 51 // Input's sha1 => DFT for the FocusFunction. 52 std::unordered_map<std::string, Vector<uint8_t> > Traces; 53 }; 54 } // namespace fuzzer 55 56 #endif // LLVM_FUZZER_DATA_FLOW_TRACE 57
Indexes created Sun Sep 21 15:09:59 GMT 2025