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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_ELF_DWARF_H
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10 #define LLD_ELF_DWARF_H
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11
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12 #include "InputFiles.h"
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13 #include "llvm/ADT/STLExtras.h"
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14 #include "llvm/DebugInfo/DWARF/DWARFContext.h"
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15 #include "llvm/Object/ELF.h"
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16
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17 namespace lld {
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18 namespace elf {
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19
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20 class InputSection;
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21
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22 struct LLDDWARFSection final : public llvm::DWARFSection {
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23 InputSectionBase *sec = nullptr;
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24 };
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25
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26 template <class ELFT> class LLDDwarfObj final : public llvm::DWARFObject {
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27 public:
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28 explicit LLDDwarfObj(ObjFile<ELFT> *obj);
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29
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30 void forEachInfoSections(
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31 llvm::function_ref<void(const llvm::DWARFSection &)> f) const override {
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32 f(infoSection);
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33 }
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34
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173
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35 const llvm::DWARFSection &getLoclistsSection() const override {
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36 return loclistsSection;
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37 }
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38
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39 const llvm::DWARFSection &getRangesSection() const override {
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40 return rangesSection;
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41 }
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42
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43 const llvm::DWARFSection &getRnglistsSection() const override {
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44 return rnglistsSection;
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45 }
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46
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47 const llvm::DWARFSection &getStrOffsetsSection() const override {
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48 return strOffsetsSection;
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49 }
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50
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51 const llvm::DWARFSection &getLineSection() const override {
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52 return lineSection;
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53 }
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54
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55 const llvm::DWARFSection &getAddrSection() const override {
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56 return addrSection;
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57 }
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58
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59 const llvm::DWARFSection &getGnuPubnamesSection() const override {
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60 return gnuPubnamesSection;
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61 }
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62
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63 const llvm::DWARFSection &getGnuPubtypesSection() const override {
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64 return gnuPubtypesSection;
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65 }
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66
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67 StringRef getFileName() const override { return ""; }
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68 StringRef getAbbrevSection() const override { return abbrevSection; }
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69 StringRef getStrSection() const override { return strSection; }
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70 StringRef getLineStrSection() const override { return lineStrSection; }
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71
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72 bool isLittleEndian() const override {
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73 return ELFT::TargetEndianness == llvm::support::little;
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74 }
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75
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76 llvm::Optional<llvm::RelocAddrEntry> find(const llvm::DWARFSection &sec,
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77 uint64_t pos) const override;
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78
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79 private:
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80 template <class RelTy>
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81 llvm::Optional<llvm::RelocAddrEntry> findAux(const InputSectionBase &sec,
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82 uint64_t pos,
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83 ArrayRef<RelTy> rels) const;
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84
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85 LLDDWARFSection gnuPubnamesSection;
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86 LLDDWARFSection gnuPubtypesSection;
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87 LLDDWARFSection infoSection;
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173
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88 LLDDWARFSection loclistsSection;
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150
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89 LLDDWARFSection rangesSection;
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90 LLDDWARFSection rnglistsSection;
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91 LLDDWARFSection strOffsetsSection;
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92 LLDDWARFSection lineSection;
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93 LLDDWARFSection addrSection;
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94 StringRef abbrevSection;
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95 StringRef strSection;
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96 StringRef lineStrSection;
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97 };
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98
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99 } // namespace elf
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100 } // namespace lld
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101
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102 #endif
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