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6c9c3a7a3c
One more try... relanding r291541 with a fix to properly gate MaxOpsPerInst on DWARF version. Description from r291541: This patch re-lands r291470, which failed on Linux bots. The issue (I believe) was undefined behavior because the size of llvm::dwarf::LineNumberOps was not explcitly specified or consistently respected. The updated patch adds an explcit underlying type to the enum and preserves the size more correctly. Original description: This patch adds support for the DWARF debug_lines section. The line table state machine opcodes are preserved, so this can be used to test the state machine evaluation directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291546 91177308-0d34-0410-b5e6-96231b3b80d8
168 lines
6.4 KiB
C++
168 lines
6.4 KiB
C++
//===- DWARFYAML.cpp - DWARF YAMLIO implementation ------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines classes for handling the YAML representation of DWARF Debug
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// Info.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ObjectYAML/DWARFYAML.h"
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namespace llvm {
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bool DWARFYAML::Data::isEmpty() const {
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return 0 == DebugStrings.size() + AbbrevDecls.size();
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}
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namespace yaml {
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void MappingTraits<DWARFYAML::Data>::mapping(IO &IO, DWARFYAML::Data &DWARF) {
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auto oldContext = IO.getContext();
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IO.setContext(&DWARF);
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IO.mapOptional("debug_str", DWARF.DebugStrings);
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IO.mapOptional("debug_abbrev", DWARF.AbbrevDecls);
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if (!DWARF.ARanges.empty() || !IO.outputting())
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IO.mapOptional("debug_aranges", DWARF.ARanges);
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if (!DWARF.PubNames.Entries.empty() || !IO.outputting())
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IO.mapOptional("debug_pubnames", DWARF.PubNames);
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if (!DWARF.PubTypes.Entries.empty() || !IO.outputting())
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IO.mapOptional("debug_pubtypes", DWARF.PubTypes);
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if (!DWARF.GNUPubNames.Entries.empty() || !IO.outputting())
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IO.mapOptional("debug_gnu_pubnames", DWARF.GNUPubNames);
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if (!DWARF.GNUPubTypes.Entries.empty() || !IO.outputting())
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IO.mapOptional("debug_gnu_pubtypes", DWARF.GNUPubTypes);
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IO.mapOptional("debug_info", DWARF.CompileUnits);
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IO.mapOptional("debug_line", DWARF.DebugLines);
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IO.setContext(&oldContext);
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}
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void MappingTraits<DWARFYAML::Abbrev>::mapping(IO &IO,
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DWARFYAML::Abbrev &Abbrev) {
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IO.mapRequired("Code", Abbrev.Code);
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IO.mapRequired("Tag", Abbrev.Tag);
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IO.mapRequired("Children", Abbrev.Children);
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IO.mapRequired("Attributes", Abbrev.Attributes);
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}
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void MappingTraits<DWARFYAML::AttributeAbbrev>::mapping(
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IO &IO, DWARFYAML::AttributeAbbrev &AttAbbrev) {
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IO.mapRequired("Attribute", AttAbbrev.Attribute);
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IO.mapRequired("Form", AttAbbrev.Form);
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}
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void MappingTraits<DWARFYAML::ARangeDescriptor>::mapping(
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IO &IO, DWARFYAML::ARangeDescriptor &Descriptor) {
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IO.mapRequired("Address", Descriptor.Address);
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IO.mapRequired("Length", Descriptor.Length);
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}
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void MappingTraits<DWARFYAML::ARange>::mapping(IO &IO,
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DWARFYAML::ARange &Range) {
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IO.mapRequired("Length", Range.Length);
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IO.mapRequired("Version", Range.Version);
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IO.mapRequired("CuOffset", Range.CuOffset);
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IO.mapRequired("AddrSize", Range.AddrSize);
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IO.mapRequired("SegSize", Range.SegSize);
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IO.mapRequired("Descriptors", Range.Descriptors);
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}
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void MappingTraits<DWARFYAML::PubEntry>::mapping(IO &IO,
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DWARFYAML::PubEntry &Entry) {
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IO.mapRequired("DieOffset", Entry.DieOffset);
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if (reinterpret_cast<DWARFYAML::PubSection *>(IO.getContext())->IsGNUStyle)
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IO.mapRequired("Descriptor", Entry.Descriptor);
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IO.mapRequired("Name", Entry.Name);
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}
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void MappingTraits<DWARFYAML::PubSection>::mapping(
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IO &IO, DWARFYAML::PubSection &Section) {
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auto OldContext = IO.getContext();
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IO.setContext(&Section);
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IO.mapRequired("Length", Section.Length);
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IO.mapRequired("Version", Section.Version);
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IO.mapRequired("UnitOffset", Section.UnitOffset);
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IO.mapRequired("UnitSize", Section.UnitSize);
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IO.mapRequired("Entries", Section.Entries);
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IO.setContext(OldContext);
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}
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void MappingTraits<DWARFYAML::Unit>::mapping(IO &IO, DWARFYAML::Unit &Unit) {
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IO.mapRequired("Length", Unit.Length);
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IO.mapRequired("Version", Unit.Version);
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IO.mapRequired("AbbrOffset", Unit.AbbrOffset);
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IO.mapRequired("AddrSize", Unit.AddrSize);
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IO.mapOptional("Entries", Unit.Entries);
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}
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void MappingTraits<DWARFYAML::Entry>::mapping(IO &IO, DWARFYAML::Entry &Entry) {
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IO.mapRequired("AbbrCode", Entry.AbbrCode);
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IO.mapRequired("Values", Entry.Values);
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}
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void MappingTraits<DWARFYAML::FormValue>::mapping(
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IO &IO, DWARFYAML::FormValue &FormValue) {
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IO.mapOptional("Value", FormValue.Value);
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if (!FormValue.CStr.empty() || !IO.outputting())
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IO.mapOptional("CStr", FormValue.CStr);
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if (!FormValue.BlockData.empty() || !IO.outputting())
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IO.mapOptional("BlockData", FormValue.BlockData);
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}
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void MappingTraits<DWARFYAML::File>::mapping(IO &IO, DWARFYAML::File &File) {
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IO.mapRequired("Name", File.Name);
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IO.mapRequired("DirIdx", File.DirIdx);
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IO.mapRequired("ModTime", File.ModTime);
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IO.mapRequired("Length", File.Length);
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}
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void MappingTraits<DWARFYAML::LineTableOpcode>::mapping(
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IO &IO, DWARFYAML::LineTableOpcode &LineTableOpcode) {
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IO.mapRequired("Opcode", LineTableOpcode.Opcode);
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if (LineTableOpcode.Opcode == dwarf::DW_LNS_extended_op) {
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IO.mapRequired("ExtLen", LineTableOpcode.ExtLen);
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IO.mapRequired("SubOpcode", LineTableOpcode.SubOpcode);
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}
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if (!LineTableOpcode.UnknownOpcodeData.empty() || !IO.outputting())
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IO.mapOptional("UnknownOpcodeData", LineTableOpcode.UnknownOpcodeData);
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if (!LineTableOpcode.UnknownOpcodeData.empty() || !IO.outputting())
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IO.mapOptional("StandardOpcodeData", LineTableOpcode.StandardOpcodeData);
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if (!LineTableOpcode.FileEntry.Name.empty() || !IO.outputting())
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IO.mapOptional("FileEntry", LineTableOpcode.FileEntry);
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if (LineTableOpcode.Opcode == dwarf::DW_LNS_advance_line || !IO.outputting())
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IO.mapOptional("SData", LineTableOpcode.SData);
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IO.mapOptional("Data", LineTableOpcode.Data);
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}
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void MappingTraits<DWARFYAML::LineTable>::mapping(
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IO &IO, DWARFYAML::LineTable &LineTable) {
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IO.mapRequired("TotalLength", LineTable.TotalLength);
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if (LineTable.TotalLength == UINT32_MAX)
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IO.mapRequired("TotalLength64", LineTable.TotalLength64);
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IO.mapRequired("Version", LineTable.Version);
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IO.mapRequired("PrologueLength", LineTable.PrologueLength);
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IO.mapRequired("MinInstLength", LineTable.MinInstLength);
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if(LineTable.Version >= 4)
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IO.mapRequired("MaxOpsPerInst", LineTable.MaxOpsPerInst);
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IO.mapRequired("DefaultIsStmt", LineTable.DefaultIsStmt);
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IO.mapRequired("LineBase", LineTable.LineBase);
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IO.mapRequired("LineRange", LineTable.LineRange);
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IO.mapRequired("OpcodeBase", LineTable.OpcodeBase);
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IO.mapRequired("StandardOpcodeLengths", LineTable.StandardOpcodeLengths);
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IO.mapRequired("IncludeDirs", LineTable.IncludeDirs);
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IO.mapRequired("Files", LineTable.Files);
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IO.mapRequired("Opcodes", LineTable.Opcodes);
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}
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} // namespace llvm::yaml
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} // namespace llvm
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