1 //===- DWARFYAML.cpp - DWARF YAMLIO implementation ------------------------===// 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 // This file defines classes for handling the YAML representation of DWARF Debug 10 // Info. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/ObjectYAML/DWARFYAML.h" 15 16 namespace llvm { 17 18 bool DWARFYAML::Data::isEmpty() const { 19 return 0 == DebugStrings.size() + AbbrevDecls.size(); 20 } 21 22 namespace yaml { 23 24 void MappingTraits<DWARFYAML::Data>::mapping(IO &IO, DWARFYAML::Data &DWARF) { 25 auto oldContext = IO.getContext(); 26 IO.setContext(&DWARF); 27 IO.mapOptional("debug_str", DWARF.DebugStrings); 28 IO.mapOptional("debug_abbrev", DWARF.AbbrevDecls); 29 if (!DWARF.ARanges.empty() || !IO.outputting()) 30 IO.mapOptional("debug_aranges", DWARF.ARanges); 31 if (!DWARF.PubNames.Entries.empty() || !IO.outputting()) 32 IO.mapOptional("debug_pubnames", DWARF.PubNames); 33 if (!DWARF.PubTypes.Entries.empty() || !IO.outputting()) 34 IO.mapOptional("debug_pubtypes", DWARF.PubTypes); 35 if (!DWARF.GNUPubNames.Entries.empty() || !IO.outputting()) 36 IO.mapOptional("debug_gnu_pubnames", DWARF.GNUPubNames); 37 if (!DWARF.GNUPubTypes.Entries.empty() || !IO.outputting()) 38 IO.mapOptional("debug_gnu_pubtypes", DWARF.GNUPubTypes); 39 IO.mapOptional("debug_info", DWARF.CompileUnits); 40 IO.mapOptional("debug_line", DWARF.DebugLines); 41 IO.setContext(&oldContext); 42 } 43 44 void MappingTraits<DWARFYAML::Abbrev>::mapping(IO &IO, 45 DWARFYAML::Abbrev &Abbrev) { 46 IO.mapRequired("Code", Abbrev.Code); 47 IO.mapRequired("Tag", Abbrev.Tag); 48 IO.mapRequired("Children", Abbrev.Children); 49 IO.mapRequired("Attributes", Abbrev.Attributes); 50 } 51 52 void MappingTraits<DWARFYAML::AttributeAbbrev>::mapping( 53 IO &IO, DWARFYAML::AttributeAbbrev &AttAbbrev) { 54 IO.mapRequired("Attribute", AttAbbrev.Attribute); 55 IO.mapRequired("Form", AttAbbrev.Form); 56 if(AttAbbrev.Form == dwarf::DW_FORM_implicit_const) 57 IO.mapRequired("Value", AttAbbrev.Value); 58 } 59 60 void MappingTraits<DWARFYAML::ARangeDescriptor>::mapping( 61 IO &IO, DWARFYAML::ARangeDescriptor &Descriptor) { 62 IO.mapRequired("Address", Descriptor.Address); 63 IO.mapRequired("Length", Descriptor.Length); 64 } 65 66 void MappingTraits<DWARFYAML::ARange>::mapping(IO &IO, 67 DWARFYAML::ARange &Range) { 68 IO.mapRequired("Length", Range.Length); 69 IO.mapRequired("Version", Range.Version); 70 IO.mapRequired("CuOffset", Range.CuOffset); 71 IO.mapRequired("AddrSize", Range.AddrSize); 72 IO.mapRequired("SegSize", Range.SegSize); 73 IO.mapRequired("Descriptors", Range.Descriptors); 74 } 75 76 void MappingTraits<DWARFYAML::PubEntry>::mapping(IO &IO, 77 DWARFYAML::PubEntry &Entry) { 78 IO.mapRequired("DieOffset", Entry.DieOffset); 79 if (reinterpret_cast<DWARFYAML::PubSection *>(IO.getContext())->IsGNUStyle) 80 IO.mapRequired("Descriptor", Entry.Descriptor); 81 IO.mapRequired("Name", Entry.Name); 82 } 83 84 void MappingTraits<DWARFYAML::PubSection>::mapping( 85 IO &IO, DWARFYAML::PubSection &Section) { 86 auto OldContext = IO.getContext(); 87 IO.setContext(&Section); 88 89 IO.mapRequired("Length", Section.Length); 90 IO.mapRequired("Version", Section.Version); 91 IO.mapRequired("UnitOffset", Section.UnitOffset); 92 IO.mapRequired("UnitSize", Section.UnitSize); 93 IO.mapRequired("Entries", Section.Entries); 94 95 IO.setContext(OldContext); 96 } 97 98 void MappingTraits<DWARFYAML::Unit>::mapping(IO &IO, DWARFYAML::Unit &Unit) { 99 IO.mapRequired("Length", Unit.Length); 100 IO.mapRequired("Version", Unit.Version); 101 if (Unit.Version >= 5) 102 IO.mapRequired("UnitType", Unit.Type); 103 IO.mapRequired("AbbrOffset", Unit.AbbrOffset); 104 IO.mapRequired("AddrSize", Unit.AddrSize); 105 IO.mapOptional("Entries", Unit.Entries); 106 } 107 108 void MappingTraits<DWARFYAML::Entry>::mapping(IO &IO, DWARFYAML::Entry &Entry) { 109 IO.mapRequired("AbbrCode", Entry.AbbrCode); 110 IO.mapRequired("Values", Entry.Values); 111 } 112 113 void MappingTraits<DWARFYAML::FormValue>::mapping( 114 IO &IO, DWARFYAML::FormValue &FormValue) { 115 IO.mapOptional("Value", FormValue.Value); 116 if (!FormValue.CStr.empty() || !IO.outputting()) 117 IO.mapOptional("CStr", FormValue.CStr); 118 if (!FormValue.BlockData.empty() || !IO.outputting()) 119 IO.mapOptional("BlockData", FormValue.BlockData); 120 } 121 122 void MappingTraits<DWARFYAML::File>::mapping(IO &IO, DWARFYAML::File &File) { 123 IO.mapRequired("Name", File.Name); 124 IO.mapRequired("DirIdx", File.DirIdx); 125 IO.mapRequired("ModTime", File.ModTime); 126 IO.mapRequired("Length", File.Length); 127 } 128 129 void MappingTraits<DWARFYAML::LineTableOpcode>::mapping( 130 IO &IO, DWARFYAML::LineTableOpcode &LineTableOpcode) { 131 IO.mapRequired("Opcode", LineTableOpcode.Opcode); 132 if (LineTableOpcode.Opcode == dwarf::DW_LNS_extended_op) { 133 IO.mapRequired("ExtLen", LineTableOpcode.ExtLen); 134 IO.mapRequired("SubOpcode", LineTableOpcode.SubOpcode); 135 } 136 137 if (!LineTableOpcode.UnknownOpcodeData.empty() || !IO.outputting()) 138 IO.mapOptional("UnknownOpcodeData", LineTableOpcode.UnknownOpcodeData); 139 if (!LineTableOpcode.UnknownOpcodeData.empty() || !IO.outputting()) 140 IO.mapOptional("StandardOpcodeData", LineTableOpcode.StandardOpcodeData); 141 if (!LineTableOpcode.FileEntry.Name.empty() || !IO.outputting()) 142 IO.mapOptional("FileEntry", LineTableOpcode.FileEntry); 143 if (LineTableOpcode.Opcode == dwarf::DW_LNS_advance_line || !IO.outputting()) 144 IO.mapOptional("SData", LineTableOpcode.SData); 145 IO.mapOptional("Data", LineTableOpcode.Data); 146 } 147 148 void MappingTraits<DWARFYAML::LineTable>::mapping( 149 IO &IO, DWARFYAML::LineTable &LineTable) { 150 IO.mapRequired("Length", LineTable.Length); 151 IO.mapRequired("Version", LineTable.Version); 152 IO.mapRequired("PrologueLength", LineTable.PrologueLength); 153 IO.mapRequired("MinInstLength", LineTable.MinInstLength); 154 if(LineTable.Version >= 4) 155 IO.mapRequired("MaxOpsPerInst", LineTable.MaxOpsPerInst); 156 IO.mapRequired("DefaultIsStmt", LineTable.DefaultIsStmt); 157 IO.mapRequired("LineBase", LineTable.LineBase); 158 IO.mapRequired("LineRange", LineTable.LineRange); 159 IO.mapRequired("OpcodeBase", LineTable.OpcodeBase); 160 IO.mapRequired("StandardOpcodeLengths", LineTable.StandardOpcodeLengths); 161 IO.mapRequired("IncludeDirs", LineTable.IncludeDirs); 162 IO.mapRequired("Files", LineTable.Files); 163 IO.mapRequired("Opcodes", LineTable.Opcodes); 164 } 165 166 void MappingTraits<DWARFYAML::InitialLength>::mapping( 167 IO &IO, DWARFYAML::InitialLength &InitialLength) { 168 IO.mapRequired("TotalLength", InitialLength.TotalLength); 169 if (InitialLength.isDWARF64()) 170 IO.mapRequired("TotalLength64", InitialLength.TotalLength64); 171 } 172 173 } // end namespace yaml 174 175 } // end namespace llvm 176