| 1 | //===- DWARF.h -----------------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===-------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #ifndef LLD_MACHO_DWARF_H |
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| 10 | #define LLD_MACHO_DWARF_H |
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| 11 | |
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| 12 | #include "llvm/ADT/StringRef.h" |
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| 13 | #include "llvm/DebugInfo/DWARF/DWARFObject.h" |
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| 14 | |
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| 15 | namespace lld::macho { |
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| 16 | |
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| 17 | class ObjFile; |
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| 18 | |
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| 19 | // Implements the interface between LLVM's DWARF-parsing utilities and LLD's |
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| 20 | // InputSection structures. |
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| 21 | class DwarfObject final : public llvm::DWARFObject { |
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| 22 | public: |
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| 23 | bool isLittleEndian() const override { return true; } |
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| 24 | |
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| 25 | std::optional<llvm::RelocAddrEntry> find(const llvm::DWARFSection &sec, |
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| 26 | uint64_t pos) const override { |
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| 27 | // TODO: implement this |
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| 28 | return std::nullopt; |
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| 29 | } |
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| 30 | |
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| 31 | void forEachInfoSections( |
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| 32 | llvm::function_ref<void(const llvm::DWARFSection &)> f) const override { |
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| 33 | f(infoSection); |
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| 34 | } |
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| 35 | |
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| 36 | llvm::StringRef getAbbrevSection() const override { return abbrevSection; } |
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| 37 | llvm::StringRef getStrSection() const override { return strSection; } |
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| 38 | |
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| 39 | llvm::DWARFSection const &getLineSection() const override { |
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| 40 | return lineSection; |
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| 41 | } |
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| 42 | |
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| 43 | llvm::DWARFSection const &getStrOffsetsSection() const override { |
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| 44 | return strOffsSection; |
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| 45 | } |
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| 46 | |
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| 47 | // Returns an instance of DwarfObject if the given object file has the |
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| 48 | // relevant DWARF debug sections. |
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| 49 | static std::unique_ptr<DwarfObject> create(ObjFile *); |
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| 50 | |
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| 51 | private: |
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| 52 | llvm::DWARFSection infoSection; |
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| 53 | llvm::DWARFSection lineSection; |
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| 54 | llvm::DWARFSection strOffsSection; |
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| 55 | llvm::StringRef abbrevSection; |
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| 56 | llvm::StringRef strSection; |
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| 57 | }; |
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| 58 | |
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| 59 | } // namespace lld::macho |
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| 60 | |
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| 61 | #endif |
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| 62 | |
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