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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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207
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35 InputSection *getInfoSection() const {
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36 return cast<InputSection>(infoSection.sec);
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37 }
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38
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173
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39 const llvm::DWARFSection &getLoclistsSection() const override {
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40 return loclistsSection;
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41 }
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42
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43 const llvm::DWARFSection &getRangesSection() const override {
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44 return rangesSection;
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45 }
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46
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47 const llvm::DWARFSection &getRnglistsSection() const override {
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48 return rnglistsSection;
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49 }
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50
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51 const llvm::DWARFSection &getStrOffsetsSection() const override {
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52 return strOffsetsSection;
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53 }
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54
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55 const llvm::DWARFSection &getLineSection() const override {
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56 return lineSection;
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57 }
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58
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59 const llvm::DWARFSection &getAddrSection() const override {
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60 return addrSection;
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61 }
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62
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207
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63 const LLDDWARFSection &getGnuPubnamesSection() const override {
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64 return gnuPubnamesSection;
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65 }
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66
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67 const LLDDWARFSection &getGnuPubtypesSection() const override {
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68 return gnuPubtypesSection;
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69 }
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70
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71 StringRef getFileName() const override { return ""; }
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72 StringRef getAbbrevSection() const override { return abbrevSection; }
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73 StringRef getStrSection() const override { return strSection; }
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74 StringRef getLineStrSection() const override { return lineStrSection; }
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75
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76 bool isLittleEndian() const override {
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77 return ELFT::TargetEndianness == llvm::support::little;
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78 }
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79
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80 llvm::Optional<llvm::RelocAddrEntry> find(const llvm::DWARFSection &sec,
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81 uint64_t pos) const override;
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82
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83 private:
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84 template <class RelTy>
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85 llvm::Optional<llvm::RelocAddrEntry> findAux(const InputSectionBase &sec,
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86 uint64_t pos,
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87 ArrayRef<RelTy> rels) const;
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88
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89 LLDDWARFSection gnuPubnamesSection;
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90 LLDDWARFSection gnuPubtypesSection;
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91 LLDDWARFSection infoSection;
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92 LLDDWARFSection loclistsSection;
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93 LLDDWARFSection rangesSection;
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94 LLDDWARFSection rnglistsSection;
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95 LLDDWARFSection strOffsetsSection;
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96 LLDDWARFSection lineSection;
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97 LLDDWARFSection addrSection;
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98 StringRef abbrevSection;
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99 StringRef strSection;
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100 StringRef lineStrSection;
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101 };
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102
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103 } // namespace elf
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104 } // namespace lld
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105
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106 #endif
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