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a26ddca533
Object files have symbol records not aligned to any particular boundary (e.g. 1-byte aligned), while PDB files have symbol records padded to 4-byte aligned boundaries. Since they share the same reading / writing code, we have to provide an option to specify the alignment and propagate it up to the producer or consumer who knows what the alignment is supposed to be for the given container type. Added a test for this by modifying the existing PDB -> YAML -> PDB round-tripping code to round trip symbol records as well as types. Differential Revision: https://reviews.llvm.org/D33785 llvm-svn: 304484
499 lines
17 KiB
C++
499 lines
17 KiB
C++
//===- CodeViewYAMLSymbols.cpp - CodeView YAMLIO Symbol 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 CodeView
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// Debug Info.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ObjectYAML/CodeViewYAMLSymbols.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/StringSwitch.h"
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#include "llvm/DebugInfo/CodeView/CVTypeVisitor.h"
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#include "llvm/DebugInfo/CodeView/CodeViewError.h"
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#include "llvm/DebugInfo/CodeView/EnumTables.h"
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#include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
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#include "llvm/DebugInfo/CodeView/SymbolSerializer.h"
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using namespace llvm;
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using namespace llvm::codeview;
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using namespace llvm::CodeViewYAML;
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using namespace llvm::CodeViewYAML::detail;
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using namespace llvm::yaml;
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LLVM_YAML_IS_SEQUENCE_VECTOR(StringRef)
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LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(TypeIndex)
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// We only need to declare these, the definitions are in CodeViewYAMLTypes.cpp
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LLVM_YAML_DECLARE_SCALAR_TRAITS(APSInt, false)
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LLVM_YAML_DECLARE_SCALAR_TRAITS(TypeIndex, false)
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LLVM_YAML_DECLARE_ENUM_TRAITS(SymbolKind)
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LLVM_YAML_DECLARE_BITSET_TRAITS(CompileSym2Flags)
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LLVM_YAML_DECLARE_BITSET_TRAITS(CompileSym3Flags)
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LLVM_YAML_DECLARE_BITSET_TRAITS(ExportFlags)
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LLVM_YAML_DECLARE_BITSET_TRAITS(LocalSymFlags)
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LLVM_YAML_DECLARE_BITSET_TRAITS(ProcSymFlags)
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LLVM_YAML_DECLARE_BITSET_TRAITS(FrameProcedureOptions)
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LLVM_YAML_DECLARE_ENUM_TRAITS(CPUType)
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LLVM_YAML_DECLARE_ENUM_TRAITS(RegisterId)
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LLVM_YAML_DECLARE_ENUM_TRAITS(TrampolineType)
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LLVM_YAML_DECLARE_ENUM_TRAITS(ThunkOrdinal)
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void ScalarEnumerationTraits<SymbolKind>::enumeration(IO &io,
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SymbolKind &Value) {
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auto SymbolNames = getSymbolTypeNames();
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for (const auto &E : SymbolNames)
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io.enumCase(Value, E.Name.str().c_str(), E.Value);
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}
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void ScalarBitSetTraits<CompileSym2Flags>::bitset(IO &io,
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CompileSym2Flags &Flags) {
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auto FlagNames = getCompileSym2FlagNames();
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for (const auto &E : FlagNames) {
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io.bitSetCase(Flags, E.Name.str().c_str(),
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static_cast<CompileSym2Flags>(E.Value));
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}
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}
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void ScalarBitSetTraits<CompileSym3Flags>::bitset(IO &io,
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CompileSym3Flags &Flags) {
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auto FlagNames = getCompileSym3FlagNames();
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for (const auto &E : FlagNames) {
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io.bitSetCase(Flags, E.Name.str().c_str(),
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static_cast<CompileSym3Flags>(E.Value));
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}
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}
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void ScalarBitSetTraits<ExportFlags>::bitset(IO &io, ExportFlags &Flags) {
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auto FlagNames = getExportSymFlagNames();
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for (const auto &E : FlagNames) {
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io.bitSetCase(Flags, E.Name.str().c_str(),
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static_cast<ExportFlags>(E.Value));
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}
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}
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void ScalarBitSetTraits<LocalSymFlags>::bitset(IO &io, LocalSymFlags &Flags) {
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auto FlagNames = getLocalFlagNames();
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for (const auto &E : FlagNames) {
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io.bitSetCase(Flags, E.Name.str().c_str(),
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static_cast<LocalSymFlags>(E.Value));
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}
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}
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void ScalarBitSetTraits<ProcSymFlags>::bitset(IO &io, ProcSymFlags &Flags) {
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auto FlagNames = getProcSymFlagNames();
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for (const auto &E : FlagNames) {
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io.bitSetCase(Flags, E.Name.str().c_str(),
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static_cast<ProcSymFlags>(E.Value));
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}
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}
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void ScalarBitSetTraits<FrameProcedureOptions>::bitset(
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IO &io, FrameProcedureOptions &Flags) {
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auto FlagNames = getFrameProcSymFlagNames();
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for (const auto &E : FlagNames) {
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io.bitSetCase(Flags, E.Name.str().c_str(),
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static_cast<FrameProcedureOptions>(E.Value));
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}
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}
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void ScalarEnumerationTraits<CPUType>::enumeration(IO &io, CPUType &Cpu) {
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auto CpuNames = getCPUTypeNames();
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for (const auto &E : CpuNames) {
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io.enumCase(Cpu, E.Name.str().c_str(), static_cast<CPUType>(E.Value));
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}
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}
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void ScalarEnumerationTraits<RegisterId>::enumeration(IO &io, RegisterId &Reg) {
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auto RegNames = getRegisterNames();
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for (const auto &E : RegNames) {
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io.enumCase(Reg, E.Name.str().c_str(), static_cast<RegisterId>(E.Value));
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}
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io.enumFallback<Hex16>(Reg);
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}
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void ScalarEnumerationTraits<TrampolineType>::enumeration(
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IO &io, TrampolineType &Tramp) {
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auto TrampNames = getTrampolineNames();
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for (const auto &E : TrampNames) {
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io.enumCase(Tramp, E.Name.str().c_str(),
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static_cast<TrampolineType>(E.Value));
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}
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}
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void ScalarEnumerationTraits<ThunkOrdinal>::enumeration(IO &io,
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ThunkOrdinal &Ord) {
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auto ThunkNames = getThunkOrdinalNames();
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for (const auto &E : ThunkNames) {
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io.enumCase(Ord, E.Name.str().c_str(), static_cast<ThunkOrdinal>(E.Value));
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}
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}
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namespace llvm {
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namespace CodeViewYAML {
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namespace detail {
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struct SymbolRecordBase {
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codeview::SymbolKind Kind;
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explicit SymbolRecordBase(codeview::SymbolKind K) : Kind(K) {}
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virtual ~SymbolRecordBase() {}
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virtual void map(yaml::IO &io) = 0;
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virtual codeview::CVSymbol
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toCodeViewSymbol(BumpPtrAllocator &Allocator,
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CodeViewContainer Container) const = 0;
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virtual Error fromCodeViewSymbol(codeview::CVSymbol Type) = 0;
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};
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template <typename T> struct SymbolRecordImpl : public SymbolRecordBase {
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explicit SymbolRecordImpl(codeview::SymbolKind K)
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: SymbolRecordBase(K), Symbol(static_cast<SymbolRecordKind>(K)) {}
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void map(yaml::IO &io) override;
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codeview::CVSymbol
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toCodeViewSymbol(BumpPtrAllocator &Allocator,
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CodeViewContainer Container) const override {
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return SymbolSerializer::writeOneSymbol(Symbol, Allocator, Container);
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}
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Error fromCodeViewSymbol(codeview::CVSymbol CVS) override {
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return SymbolDeserializer::deserializeAs<T>(CVS, Symbol);
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}
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mutable T Symbol;
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};
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template <> void SymbolRecordImpl<ScopeEndSym>::map(IO &IO) {}
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template <> void SymbolRecordImpl<Thunk32Sym>::map(IO &IO) {
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IO.mapRequired("Parent", Symbol.Parent);
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IO.mapRequired("End", Symbol.End);
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IO.mapRequired("Next", Symbol.Next);
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IO.mapRequired("Off", Symbol.Offset);
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IO.mapRequired("Seg", Symbol.Segment);
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IO.mapRequired("Len", Symbol.Length);
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IO.mapRequired("Ordinal", Symbol.Thunk);
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}
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template <> void SymbolRecordImpl<TrampolineSym>::map(IO &IO) {
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IO.mapRequired("Type", Symbol.Type);
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IO.mapRequired("Size", Symbol.Size);
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IO.mapRequired("ThunkOff", Symbol.ThunkOffset);
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IO.mapRequired("TargetOff", Symbol.TargetOffset);
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IO.mapRequired("ThunkSection", Symbol.ThunkSection);
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IO.mapRequired("TargetSection", Symbol.TargetSection);
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}
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template <> void SymbolRecordImpl<SectionSym>::map(IO &IO) {
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IO.mapRequired("SectionNumber", Symbol.SectionNumber);
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IO.mapRequired("Alignment", Symbol.Alignment);
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IO.mapRequired("Rva", Symbol.Rva);
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IO.mapRequired("Length", Symbol.Length);
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IO.mapRequired("Characteristics", Symbol.Characteristics);
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IO.mapRequired("Name", Symbol.Name);
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}
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template <> void SymbolRecordImpl<CoffGroupSym>::map(IO &IO) {
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IO.mapRequired("Size", Symbol.Size);
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IO.mapRequired("Characteristics", Symbol.Characteristics);
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IO.mapRequired("Offset", Symbol.Offset);
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IO.mapRequired("Segment", Symbol.Segment);
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IO.mapRequired("Name", Symbol.Name);
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}
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template <> void SymbolRecordImpl<ExportSym>::map(IO &IO) {
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IO.mapRequired("Ordinal", Symbol.Ordinal);
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IO.mapRequired("Flags", Symbol.Flags);
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IO.mapRequired("Name", Symbol.Name);
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}
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template <> void SymbolRecordImpl<ProcSym>::map(IO &IO) {
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// TODO: Print the linkage name
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IO.mapRequired("PtrParent", Symbol.Parent);
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IO.mapRequired("PtrEnd", Symbol.End);
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IO.mapRequired("PtrNext", Symbol.Next);
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IO.mapRequired("CodeSize", Symbol.CodeSize);
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IO.mapRequired("DbgStart", Symbol.DbgStart);
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IO.mapRequired("DbgEnd", Symbol.DbgEnd);
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IO.mapRequired("FunctionType", Symbol.FunctionType);
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IO.mapRequired("Segment", Symbol.Segment);
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IO.mapRequired("Flags", Symbol.Flags);
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IO.mapRequired("DisplayName", Symbol.Name);
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}
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template <> void SymbolRecordImpl<RegisterSym>::map(IO &IO) {
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IO.mapRequired("Type", Symbol.Index);
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IO.mapRequired("Seg", Symbol.Register);
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IO.mapRequired("Name", Symbol.Name);
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}
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template <> void SymbolRecordImpl<PublicSym32>::map(IO &IO) {
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IO.mapRequired("Type", Symbol.Index);
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IO.mapRequired("Seg", Symbol.Segment);
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IO.mapRequired("Off", Symbol.Offset);
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IO.mapRequired("Name", Symbol.Name);
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}
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template <> void SymbolRecordImpl<ProcRefSym>::map(IO &IO) {
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IO.mapRequired("SumName", Symbol.SumName);
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IO.mapRequired("SymOffset", Symbol.SymOffset);
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IO.mapRequired("Mod", Symbol.Module);
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IO.mapRequired("Name", Symbol.Name);
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}
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template <> void SymbolRecordImpl<EnvBlockSym>::map(IO &IO) {
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IO.mapRequired("Entries", Symbol.Fields);
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}
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template <> void SymbolRecordImpl<InlineSiteSym>::map(IO &IO) {
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IO.mapRequired("PtrParent", Symbol.Parent);
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IO.mapRequired("PtrEnd", Symbol.End);
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IO.mapRequired("Inlinee", Symbol.Inlinee);
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// TODO: The binary annotations
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}
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template <> void SymbolRecordImpl<LocalSym>::map(IO &IO) {
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IO.mapRequired("Type", Symbol.Type);
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IO.mapRequired("Flags", Symbol.Flags);
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IO.mapRequired("VarName", Symbol.Name);
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}
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template <> void SymbolRecordImpl<DefRangeSym>::map(IO &IO) {
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// TODO: Print the subfields
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}
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template <> void SymbolRecordImpl<DefRangeSubfieldSym>::map(IO &IO) {
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// TODO: Print the subfields
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}
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template <> void SymbolRecordImpl<DefRangeRegisterSym>::map(IO &IO) {
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// TODO: Print the subfields
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}
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template <> void SymbolRecordImpl<DefRangeFramePointerRelSym>::map(IO &IO) {
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// TODO: Print the subfields
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}
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template <> void SymbolRecordImpl<DefRangeSubfieldRegisterSym>::map(IO &IO) {
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// TODO: Print the subfields
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}
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template <>
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void SymbolRecordImpl<DefRangeFramePointerRelFullScopeSym>::map(IO &IO) {
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// TODO: Print the subfields
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}
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template <> void SymbolRecordImpl<DefRangeRegisterRelSym>::map(IO &IO) {
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// TODO: Print the subfields
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}
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template <> void SymbolRecordImpl<BlockSym>::map(IO &IO) {
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// TODO: Print the linkage name
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IO.mapRequired("PtrParent", Symbol.Parent);
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IO.mapRequired("PtrEnd", Symbol.End);
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IO.mapRequired("CodeSize", Symbol.CodeSize);
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IO.mapRequired("Segment", Symbol.Segment);
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IO.mapRequired("BlockName", Symbol.Name);
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}
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template <> void SymbolRecordImpl<LabelSym>::map(IO &IO) {
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// TODO: Print the linkage name
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IO.mapRequired("Segment", Symbol.Segment);
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IO.mapRequired("Flags", Symbol.Flags);
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IO.mapRequired("Flags", Symbol.Flags);
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IO.mapRequired("DisplayName", Symbol.Name);
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}
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template <> void SymbolRecordImpl<ObjNameSym>::map(IO &IO) {
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IO.mapRequired("Signature", Symbol.Signature);
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IO.mapRequired("ObjectName", Symbol.Name);
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}
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template <> void SymbolRecordImpl<Compile2Sym>::map(IO &IO) {
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IO.mapRequired("Flags", Symbol.Flags);
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IO.mapRequired("Machine", Symbol.Machine);
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IO.mapRequired("FrontendMajor", Symbol.VersionFrontendMajor);
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IO.mapRequired("FrontendMinor", Symbol.VersionFrontendMinor);
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IO.mapRequired("FrontendBuild", Symbol.VersionFrontendBuild);
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IO.mapRequired("BackendMajor", Symbol.VersionBackendMajor);
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IO.mapRequired("BackendMinor", Symbol.VersionBackendMinor);
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IO.mapRequired("BackendBuild", Symbol.VersionBackendBuild);
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IO.mapRequired("Version", Symbol.Version);
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}
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template <> void SymbolRecordImpl<Compile3Sym>::map(IO &IO) {
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IO.mapRequired("Flags", Symbol.Flags);
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IO.mapRequired("Machine", Symbol.Machine);
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IO.mapRequired("FrontendMajor", Symbol.VersionFrontendMajor);
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IO.mapRequired("FrontendMinor", Symbol.VersionFrontendMinor);
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IO.mapRequired("FrontendBuild", Symbol.VersionFrontendBuild);
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IO.mapRequired("FrontendQFE", Symbol.VersionFrontendQFE);
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IO.mapRequired("BackendMajor", Symbol.VersionBackendMajor);
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IO.mapRequired("BackendMinor", Symbol.VersionBackendMinor);
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IO.mapRequired("BackendBuild", Symbol.VersionBackendBuild);
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IO.mapRequired("BackendQFE", Symbol.VersionBackendQFE);
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IO.mapRequired("Version", Symbol.Version);
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}
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template <> void SymbolRecordImpl<FrameProcSym>::map(IO &IO) {
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IO.mapRequired("TotalFrameBytes", Symbol.TotalFrameBytes);
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IO.mapRequired("PaddingFrameBytes", Symbol.PaddingFrameBytes);
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IO.mapRequired("OffsetToPadding", Symbol.OffsetToPadding);
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IO.mapRequired("BytesOfCalleeSavedRegisters",
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Symbol.BytesOfCalleeSavedRegisters);
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IO.mapRequired("OffsetOfExceptionHandler", Symbol.OffsetOfExceptionHandler);
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IO.mapRequired("SectionIdOfExceptionHandler",
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Symbol.SectionIdOfExceptionHandler);
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IO.mapRequired("Flags", Symbol.Flags);
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}
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template <> void SymbolRecordImpl<CallSiteInfoSym>::map(IO &IO) {
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// TODO: Map Linkage Name
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IO.mapRequired("Segment", Symbol.Segment);
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IO.mapRequired("Type", Symbol.Type);
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}
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template <> void SymbolRecordImpl<FileStaticSym>::map(IO &IO) {
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IO.mapRequired("Index", Symbol.Index);
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IO.mapRequired("ModFilenameOffset", Symbol.ModFilenameOffset);
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IO.mapRequired("Flags", Symbol.Flags);
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IO.mapRequired("Name", Symbol.Name);
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}
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template <> void SymbolRecordImpl<HeapAllocationSiteSym>::map(IO &IO) {
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// TODO: Map Linkage Name
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IO.mapRequired("Segment", Symbol.Segment);
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IO.mapRequired("CallInstructionSize", Symbol.CallInstructionSize);
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IO.mapRequired("Type", Symbol.Type);
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}
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template <> void SymbolRecordImpl<FrameCookieSym>::map(IO &IO) {
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// TODO: Map Linkage Name
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IO.mapRequired("Register", Symbol.Register);
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IO.mapRequired("CookieKind", Symbol.CookieKind);
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IO.mapRequired("Flags", Symbol.Flags);
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}
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template <> void SymbolRecordImpl<CallerSym>::map(IO &IO) {
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IO.mapRequired("FuncID", Symbol.Indices);
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}
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template <> void SymbolRecordImpl<UDTSym>::map(IO &IO) {
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IO.mapRequired("Type", Symbol.Type);
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IO.mapRequired("UDTName", Symbol.Name);
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}
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template <> void SymbolRecordImpl<BuildInfoSym>::map(IO &IO) {
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IO.mapRequired("BuildId", Symbol.BuildId);
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}
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template <> void SymbolRecordImpl<BPRelativeSym>::map(IO &IO) {
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IO.mapRequired("Offset", Symbol.Offset);
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IO.mapRequired("Type", Symbol.Type);
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IO.mapRequired("VarName", Symbol.Name);
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}
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template <> void SymbolRecordImpl<RegRelativeSym>::map(IO &IO) {
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IO.mapRequired("Offset", Symbol.Offset);
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IO.mapRequired("Type", Symbol.Type);
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IO.mapRequired("Register", Symbol.Register);
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IO.mapRequired("VarName", Symbol.Name);
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}
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template <> void SymbolRecordImpl<ConstantSym>::map(IO &IO) {
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IO.mapRequired("Type", Symbol.Type);
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IO.mapRequired("Value", Symbol.Value);
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IO.mapRequired("Name", Symbol.Name);
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}
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template <> void SymbolRecordImpl<DataSym>::map(IO &IO) {
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// TODO: Map linkage name
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IO.mapRequired("Type", Symbol.Type);
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IO.mapRequired("DisplayName", Symbol.Name);
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}
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template <> void SymbolRecordImpl<ThreadLocalDataSym>::map(IO &IO) {
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// TODO: Map linkage name
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IO.mapRequired("Type", Symbol.Type);
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IO.mapRequired("DisplayName", Symbol.Name);
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}
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}
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}
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}
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CVSymbol CodeViewYAML::SymbolRecord::toCodeViewSymbol(
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BumpPtrAllocator &Allocator, CodeViewContainer Container) const {
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return Symbol->toCodeViewSymbol(Allocator, Container);
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}
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namespace llvm {
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namespace yaml {
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template <> struct MappingTraits<SymbolRecordBase> {
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static void mapping(IO &io, SymbolRecordBase &Record) { Record.map(io); }
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};
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}
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}
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template <typename SymbolType>
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static inline Expected<CodeViewYAML::SymbolRecord>
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fromCodeViewSymbolImpl(CVSymbol Symbol) {
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CodeViewYAML::SymbolRecord Result;
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auto Impl = std::make_shared<SymbolRecordImpl<SymbolType>>(Symbol.kind());
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if (auto EC = Impl->fromCodeViewSymbol(Symbol))
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return std::move(EC);
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Result.Symbol = Impl;
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return Result;
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}
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Expected<CodeViewYAML::SymbolRecord>
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CodeViewYAML::SymbolRecord::fromCodeViewSymbol(CVSymbol Symbol) {
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#define SYMBOL_RECORD(EnumName, EnumVal, ClassName) \
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case EnumName: \
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return fromCodeViewSymbolImpl<ClassName>(Symbol);
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#define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, AliasName, ClassName) \
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SYMBOL_RECORD(EnumName, EnumVal, ClassName)
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switch (Symbol.kind()) {
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#include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
|
|
default: { llvm_unreachable("Unknown symbol kind!"); }
|
|
}
|
|
return make_error<CodeViewError>(cv_error_code::corrupt_record);
|
|
}
|
|
|
|
template <typename ConcreteType>
|
|
static void mapSymbolRecordImpl(IO &IO, const char *Class, SymbolKind Kind,
|
|
CodeViewYAML::SymbolRecord &Obj) {
|
|
if (!IO.outputting())
|
|
Obj.Symbol = std::make_shared<SymbolRecordImpl<ConcreteType>>(Kind);
|
|
|
|
IO.mapRequired(Class, *Obj.Symbol);
|
|
}
|
|
|
|
void MappingTraits<CodeViewYAML::SymbolRecord>::mapping(
|
|
IO &IO, CodeViewYAML::SymbolRecord &Obj) {
|
|
SymbolKind Kind;
|
|
if (IO.outputting())
|
|
Kind = Obj.Symbol->Kind;
|
|
IO.mapRequired("Kind", Kind);
|
|
|
|
#define SYMBOL_RECORD(EnumName, EnumVal, ClassName) \
|
|
case EnumName: \
|
|
mapSymbolRecordImpl<ClassName>(IO, #ClassName, Kind, Obj); \
|
|
break;
|
|
#define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, AliasName, ClassName) \
|
|
SYMBOL_RECORD(EnumName, EnumVal, ClassName)
|
|
switch (Kind) {
|
|
#include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
|
|
default: { llvm_unreachable("Unknown symbol kind!"); }
|
|
}
|
|
}
|