| 1 | //===- DWARF.h --------------------------------------------------*- C++ -*-===// |
|---|---|
| 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 | #ifndef LLD_DWARF_H |
| 10 | #define LLD_DWARF_H |
| 11 | |
| 12 | #include "lld/Common/LLVM.h" |
| 13 | #include "llvm/ADT/DenseMap.h" |
| 14 | #include "llvm/ADT/StringRef.h" |
| 15 | #include "llvm/DebugInfo/DWARF/DWARFContext.h" |
| 16 | #include "llvm/DebugInfo/DWARF/DWARFDebugLine.h" |
| 17 | #include <memory> |
| 18 | #include <string> |
| 19 | |
| 20 | namespace llvm { |
| 21 | struct DILineInfo; |
| 22 | } // namespace llvm |
| 23 | |
| 24 | namespace lld { |
| 25 | |
| 26 | class DWARFCache { |
| 27 | public: |
| 28 | DWARFCache(std::unique_ptr<llvm::DWARFContext> dwarf); |
| 29 | std::optional<llvm::DILineInfo> getDILineInfo(uint64_t offset, |
| 30 | uint64_t sectionIndex); |
| 31 | std::optional<std::pair<std::string, unsigned>> |
| 32 | getVariableLoc(StringRef name); |
| 33 | |
| 34 | llvm::DWARFContext *getContext() { return dwarf.get(); } |
| 35 | |
| 36 | private: |
| 37 | std::unique_ptr<llvm::DWARFContext> dwarf; |
| 38 | std::vector<const llvm::DWARFDebugLine::LineTable *> lineTables; |
| 39 | struct VarLoc { |
| 40 | const llvm::DWARFDebugLine::LineTable *lt; |
| 41 | unsigned file; |
| 42 | unsigned line; |
| 43 | }; |
| 44 | llvm::DenseMap<StringRef, VarLoc> variableLoc; |
| 45 | }; |
| 46 | |
| 47 | } // namespace lld |
| 48 | |
| 49 | #endif |
| 50 |