| 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/SymbolizableModule.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 |