1 //===- func-id-helper.h - XRay Function ID Conversion Helpers -------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // Defines helper tools dealing with XRay-generated function ids. 10 // 11 //===----------------------------------------------------------------------===// 12 #ifndef LLVM_TOOLS_LLVM_XRAY_FUNC_ID_HELPER_H 13 #define LLVM_TOOLS_LLVM_XRAY_FUNC_ID_HELPER_H 14 15 #include "llvm/ADT/DenseMap.h" 16 #include "llvm/DebugInfo/Symbolize/Symbolize.h" 17 #include <unordered_map> 18 19 namespace llvm { 20 namespace xray { 21 22 // This class consolidates common operations related to Function IDs. 23 class FuncIdConversionHelper { 24 public: 25 using FunctionAddressMap = std::unordered_map<int32_t, uint64_t>; 26 27 private: 28 std::string BinaryInstrMap; 29 symbolize::LLVMSymbolizer &Symbolizer; 30 const FunctionAddressMap &FunctionAddresses; 31 mutable llvm::DenseMap<int32_t, std::string> CachedNames; 32 33 public: 34 FuncIdConversionHelper(std::string BinaryInstrMap, 35 symbolize::LLVMSymbolizer &Symbolizer, 36 const FunctionAddressMap &FunctionAddresses) 37 : BinaryInstrMap(std::move(BinaryInstrMap)), Symbolizer(Symbolizer), 38 FunctionAddresses(FunctionAddresses) {} 39 40 // Returns the symbol or a string representation of the function id. 41 std::string SymbolOrNumber(int32_t FuncId) const; 42 43 // Returns the file and column from debug info for the given function id. 44 std::string FileLineAndColumn(int32_t FuncId) const; 45 }; 46 47 } // namespace xray 48 } // namespace llvm 49 50 #endif // LLVM_TOOLS_LLVM_XRAY_FUNC_ID_HELPER_H 51