1 //===- func-id-helper.h - XRay Function ID Conversion Helpers -------------===// 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 // 10 // Defines helper tools dealing with XRay-generated function ids. 11 // 12 //===----------------------------------------------------------------------===// 13 #ifndef LLVM_TOOLS_LLVM_XRAY_FUNC_ID_HELPER_H 14 #define LLVM_TOOLS_LLVM_XRAY_FUNC_ID_HELPER_H 15 16 #include "llvm/ADT/DenseMap.h" 17 #include "llvm/DebugInfo/Symbolize/Symbolize.h" 18 #include <unordered_map> 19 20 namespace llvm { 21 namespace xray { 22 23 // This class consolidates common operations related to Function IDs. 24 class FuncIdConversionHelper { 25 public: 26 using FunctionAddressMap = std::unordered_map<int32_t, uint64_t>; 27 28 private: 29 std::string BinaryInstrMap; 30 symbolize::LLVMSymbolizer &Symbolizer; 31 const FunctionAddressMap &FunctionAddresses; 32 mutable llvm::DenseMap<int32_t, std::string> CachedNames; 33 34 public: 35 FuncIdConversionHelper(std::string BinaryInstrMap, 36 symbolize::LLVMSymbolizer &Symbolizer, 37 const FunctionAddressMap &FunctionAddresses) 38 : BinaryInstrMap(std::move(BinaryInstrMap)), Symbolizer(Symbolizer), 39 FunctionAddresses(FunctionAddresses) {} 40 41 // Returns the symbol or a string representation of the function id. 42 std::string SymbolOrNumber(int32_t FuncId) const; 43 44 // Returns the file and column from debug info for the given function id. 45 std::string FileLineAndColumn(int32_t FuncId) const; 46 }; 47 48 } // namespace xray 49 } // namespace llvm 50 51 #endif // LLVM_TOOLS_LLVM_XRAY_FUNC_ID_HELPER_H 52
