contrib/llvm/lib/ObjectYAML/DWARFYAML.cpp

   1 //===- DWARFYAML.cpp - DWARF YAMLIO implementation ------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file defines classes for handling the YAML representation of DWARF Debug
  11 // Info.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "llvm/ObjectYAML/DWARFYAML.h"
  16
  17 namespace llvm {
  18
  19 bool DWARFYAML::Data::isEmpty() const {
  20   return 0 == DebugStrings.size() + AbbrevDecls.size();
  21 }
  22
  23 namespace yaml {
  24
  25 void MappingTraits<DWARFYAML::Data>::mapping(IO &IO, DWARFYAML::Data &DWARF) {
  26   auto oldContext = IO.getContext();
  27   IO.setContext(&DWARF);
  28   IO.mapOptional("debug_str", DWARF.DebugStrings);
  29   IO.mapOptional("debug_abbrev", DWARF.AbbrevDecls);
  30   if (!DWARF.ARanges.empty() || !IO.outputting())
  31     IO.mapOptional("debug_aranges", DWARF.ARanges);
  32   if (!DWARF.PubNames.Entries.empty() || !IO.outputting())
  33     IO.mapOptional("debug_pubnames", DWARF.PubNames);
  34   if (!DWARF.PubTypes.Entries.empty() || !IO.outputting())
  35     IO.mapOptional("debug_pubtypes", DWARF.PubTypes);
  36   if (!DWARF.GNUPubNames.Entries.empty() || !IO.outputting())
  37     IO.mapOptional("debug_gnu_pubnames", DWARF.GNUPubNames);
  38   if (!DWARF.GNUPubTypes.Entries.empty() || !IO.outputting())
  39     IO.mapOptional("debug_gnu_pubtypes", DWARF.GNUPubTypes);
  40   IO.mapOptional("debug_info", DWARF.CompileUnits);
  41   IO.mapOptional("debug_line", DWARF.DebugLines);
  42   IO.setContext(&oldContext);
  43 }
  44
  45 void MappingTraits<DWARFYAML::Abbrev>::mapping(IO &IO,
  46                                                DWARFYAML::Abbrev &Abbrev) {
  47   IO.mapRequired("Code", Abbrev.Code);
  48   IO.mapRequired("Tag", Abbrev.Tag);
  49   IO.mapRequired("Children", Abbrev.Children);
  50   IO.mapRequired("Attributes", Abbrev.Attributes);
  51 }
  52
  53 void MappingTraits<DWARFYAML::AttributeAbbrev>::mapping(
  54     IO &IO, DWARFYAML::AttributeAbbrev &AttAbbrev) {
  55   IO.mapRequired("Attribute", AttAbbrev.Attribute);
  56   IO.mapRequired("Form", AttAbbrev.Form);
  57   if(AttAbbrev.Form == dwarf::DW_FORM_implicit_const)
  58     IO.mapRequired("Value", AttAbbrev.Value);
  59 }
  60
  61 void MappingTraits<DWARFYAML::ARangeDescriptor>::mapping(
  62     IO &IO, DWARFYAML::ARangeDescriptor &Descriptor) {
  63   IO.mapRequired("Address", Descriptor.Address);
  64   IO.mapRequired("Length", Descriptor.Length);
  65 }
  66
  67 void MappingTraits<DWARFYAML::ARange>::mapping(IO &IO,
  68                                                DWARFYAML::ARange &Range) {
  69   IO.mapRequired("Length", Range.Length);
  70   IO.mapRequired("Version", Range.Version);
  71   IO.mapRequired("CuOffset", Range.CuOffset);
  72   IO.mapRequired("AddrSize", Range.AddrSize);
  73   IO.mapRequired("SegSize", Range.SegSize);
  74   IO.mapRequired("Descriptors", Range.Descriptors);
  75 }
  76
  77 void MappingTraits<DWARFYAML::PubEntry>::mapping(IO &IO,
  78                                                  DWARFYAML::PubEntry &Entry) {
  79   IO.mapRequired("DieOffset", Entry.DieOffset);
  80   if (reinterpret_cast<DWARFYAML::PubSection *>(IO.getContext())->IsGNUStyle)
  81     IO.mapRequired("Descriptor", Entry.Descriptor);
  82   IO.mapRequired("Name", Entry.Name);
  83 }
  84
  85 void MappingTraits<DWARFYAML::PubSection>::mapping(
  86     IO &IO, DWARFYAML::PubSection &Section) {
  87   auto OldContext = IO.getContext();
  88   IO.setContext(&Section);
  89
  90   IO.mapRequired("Length", Section.Length);
  91   IO.mapRequired("Version", Section.Version);
  92   IO.mapRequired("UnitOffset", Section.UnitOffset);
  93   IO.mapRequired("UnitSize", Section.UnitSize);
  94   IO.mapRequired("Entries", Section.Entries);
  95
  96   IO.setContext(OldContext);
  97 }
  98
  99 void MappingTraits<DWARFYAML::Unit>::mapping(IO &IO, DWARFYAML::Unit &Unit) {
 100   IO.mapRequired("Length", Unit.Length);
 101   IO.mapRequired("Version", Unit.Version);
 102   if (Unit.Version >= 5)
 103     IO.mapRequired("UnitType", Unit.Type);
 104   IO.mapRequired("AbbrOffset", Unit.AbbrOffset);
 105   IO.mapRequired("AddrSize", Unit.AddrSize);
 106   IO.mapOptional("Entries", Unit.Entries);
 107 }
 108
 109 void MappingTraits<DWARFYAML::Entry>::mapping(IO &IO, DWARFYAML::Entry &Entry) {
 110   IO.mapRequired("AbbrCode", Entry.AbbrCode);
 111   IO.mapRequired("Values", Entry.Values);
 112 }
 113
 114 void MappingTraits<DWARFYAML::FormValue>::mapping(
 115     IO &IO, DWARFYAML::FormValue &FormValue) {
 116   IO.mapOptional("Value", FormValue.Value);
 117   if (!FormValue.CStr.empty() || !IO.outputting())
 118     IO.mapOptional("CStr", FormValue.CStr);
 119   if (!FormValue.BlockData.empty() || !IO.outputting())
 120     IO.mapOptional("BlockData", FormValue.BlockData);
 121 }
 122
 123 void MappingTraits<DWARFYAML::File>::mapping(IO &IO, DWARFYAML::File &File) {
 124   IO.mapRequired("Name", File.Name);
 125   IO.mapRequired("DirIdx", File.DirIdx);
 126   IO.mapRequired("ModTime", File.ModTime);
 127   IO.mapRequired("Length", File.Length);
 128 }
 129
 130 void MappingTraits<DWARFYAML::LineTableOpcode>::mapping(
 131     IO &IO, DWARFYAML::LineTableOpcode &LineTableOpcode) {
 132   IO.mapRequired("Opcode", LineTableOpcode.Opcode);
 133   if (LineTableOpcode.Opcode == dwarf::DW_LNS_extended_op) {
 134     IO.mapRequired("ExtLen", LineTableOpcode.ExtLen);
 135     IO.mapRequired("SubOpcode", LineTableOpcode.SubOpcode);
 136   }
 137
 138   if (!LineTableOpcode.UnknownOpcodeData.empty() || !IO.outputting())
 139     IO.mapOptional("UnknownOpcodeData", LineTableOpcode.UnknownOpcodeData);
 140   if (!LineTableOpcode.UnknownOpcodeData.empty() || !IO.outputting())
 141     IO.mapOptional("StandardOpcodeData", LineTableOpcode.StandardOpcodeData);
 142   if (!LineTableOpcode.FileEntry.Name.empty() || !IO.outputting())
 143     IO.mapOptional("FileEntry", LineTableOpcode.FileEntry);
 144   if (LineTableOpcode.Opcode == dwarf::DW_LNS_advance_line || !IO.outputting())
 145     IO.mapOptional("SData", LineTableOpcode.SData);
 146   IO.mapOptional("Data", LineTableOpcode.Data);
 147 }
 148
 149 void MappingTraits<DWARFYAML::LineTable>::mapping(
 150     IO &IO, DWARFYAML::LineTable &LineTable) {
 151   IO.mapRequired("Length", LineTable.Length);
 152   IO.mapRequired("Version", LineTable.Version);
 153   IO.mapRequired("PrologueLength", LineTable.PrologueLength);
 154   IO.mapRequired("MinInstLength", LineTable.MinInstLength);
 155   if(LineTable.Version >= 4)
 156     IO.mapRequired("MaxOpsPerInst", LineTable.MaxOpsPerInst);
 157   IO.mapRequired("DefaultIsStmt", LineTable.DefaultIsStmt);
 158   IO.mapRequired("LineBase", LineTable.LineBase);
 159   IO.mapRequired("LineRange", LineTable.LineRange);
 160   IO.mapRequired("OpcodeBase", LineTable.OpcodeBase);
 161   IO.mapRequired("StandardOpcodeLengths", LineTable.StandardOpcodeLengths);
 162   IO.mapRequired("IncludeDirs", LineTable.IncludeDirs);
 163   IO.mapRequired("Files", LineTable.Files);
 164   IO.mapRequired("Opcodes", LineTable.Opcodes);
 165 }
 166
 167 void MappingTraits<DWARFYAML::InitialLength>::mapping(
 168     IO &IO, DWARFYAML::InitialLength &InitialLength) {
 169   IO.mapRequired("TotalLength", InitialLength.TotalLength);
 170   if (InitialLength.isDWARF64())
 171     IO.mapRequired("TotalLength64", InitialLength.TotalLength64);
 172 }
 173
 174 } // end namespace yaml
 175
 176 } // end namespace llvm