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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 {
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16 namespace macho {
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17
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18 class ObjFile;
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19
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20 // Implements the interface between LLVM's DWARF-parsing utilities and LLD's
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21 // InputSection structures.
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22 class DwarfObject final : public llvm::DWARFObject {
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23 public:
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24 bool isLittleEndian() const override { return true; }
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25
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26 llvm::Optional<llvm::RelocAddrEntry> find(const llvm::DWARFSection &sec,
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27 uint64_t pos) const override {
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28 // TODO: implement this
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29 return llvm::None;
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30 }
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31
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32 void forEachInfoSections(
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33 llvm::function_ref<void(const llvm::DWARFSection &)> f) const override {
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34 f(infoSection);
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35 }
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36
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37 llvm::StringRef getAbbrevSection() const override { return abbrevSection; }
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38 llvm::StringRef getStrSection() const override { return strSection; }
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39
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40 // Returns an instance of DwarfObject if the given object file has the
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41 // relevant DWARF debug sections.
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42 static std::unique_ptr<DwarfObject> create(ObjFile *);
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43
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44 private:
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45 llvm::DWARFSection infoSection;
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46 llvm::StringRef abbrevSection;
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47 llvm::StringRef strSection;
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48 };
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49
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50 } // namespace macho
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51 } // namespace lld
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52
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53 #endif
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