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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
547 lines
17 KiB
C++
547 lines
17 KiB
C++
//===- SymbolRecordMapping.cpp -----------------------------------*- C++-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/CodeView/SymbolRecordMapping.h"
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using namespace llvm;
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using namespace llvm::codeview;
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#define error(X) \
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if (auto EC = X) \
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return EC;
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namespace {
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struct MapGap {
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Error operator()(CodeViewRecordIO &IO, LocalVariableAddrGap &Gap) const {
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error(IO.mapInteger(Gap.GapStartOffset));
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error(IO.mapInteger(Gap.Range));
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return Error::success();
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}
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};
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}
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static Error mapLocalVariableAddrRange(CodeViewRecordIO &IO,
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LocalVariableAddrRange &Range) {
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error(IO.mapInteger(Range.OffsetStart));
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error(IO.mapInteger(Range.ISectStart));
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error(IO.mapInteger(Range.Range));
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return Error::success();
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}
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Error SymbolRecordMapping::visitSymbolBegin(CVSymbol &Record) {
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error(IO.beginRecord(MaxRecordLength - sizeof(RecordPrefix)));
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return Error::success();
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}
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Error SymbolRecordMapping::visitSymbolEnd(CVSymbol &Record) {
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error(IO.padToAlignment(alignOf(Container)));
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error(IO.endRecord());
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR, BlockSym &Block) {
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error(IO.mapInteger(Block.Parent));
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error(IO.mapInteger(Block.End));
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error(IO.mapInteger(Block.CodeSize));
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error(IO.mapInteger(Block.CodeOffset));
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error(IO.mapInteger(Block.Segment));
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error(IO.mapStringZ(Block.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR, Thunk32Sym &Thunk) {
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error(IO.mapInteger(Thunk.Parent));
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error(IO.mapInteger(Thunk.End));
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error(IO.mapInteger(Thunk.Next));
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error(IO.mapInteger(Thunk.Offset));
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error(IO.mapInteger(Thunk.Segment));
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error(IO.mapInteger(Thunk.Length));
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error(IO.mapEnum(Thunk.Thunk));
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error(IO.mapStringZ(Thunk.Name));
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error(IO.mapByteVectorTail(Thunk.VariantData));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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TrampolineSym &Tramp) {
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error(IO.mapEnum(Tramp.Type));
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error(IO.mapInteger(Tramp.Size));
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error(IO.mapInteger(Tramp.ThunkOffset));
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error(IO.mapInteger(Tramp.TargetOffset));
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error(IO.mapInteger(Tramp.ThunkSection));
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error(IO.mapInteger(Tramp.TargetSection));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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SectionSym &Section) {
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uint8_t Padding = 0;
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error(IO.mapInteger(Section.SectionNumber));
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error(IO.mapInteger(Section.Alignment));
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error(IO.mapInteger(Padding));
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error(IO.mapInteger(Section.Rva));
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error(IO.mapInteger(Section.Length));
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error(IO.mapInteger(Section.Characteristics));
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error(IO.mapStringZ(Section.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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CoffGroupSym &CoffGroup) {
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error(IO.mapInteger(CoffGroup.Size));
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error(IO.mapInteger(CoffGroup.Characteristics));
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error(IO.mapInteger(CoffGroup.Offset));
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error(IO.mapInteger(CoffGroup.Segment));
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error(IO.mapStringZ(CoffGroup.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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BPRelativeSym &BPRel) {
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error(IO.mapInteger(BPRel.Offset));
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error(IO.mapInteger(BPRel.Type));
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error(IO.mapStringZ(BPRel.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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BuildInfoSym &BuildInfo) {
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error(IO.mapInteger(BuildInfo.BuildId));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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CallSiteInfoSym &CallSiteInfo) {
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uint16_t Padding = 0;
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error(IO.mapInteger(CallSiteInfo.CodeOffset));
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error(IO.mapInteger(CallSiteInfo.Segment));
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error(IO.mapInteger(Padding));
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error(IO.mapInteger(CallSiteInfo.Type));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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EnvBlockSym &EnvBlock) {
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uint8_t Reserved = 0;
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error(IO.mapInteger(Reserved));
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error(IO.mapStringZVectorZ(EnvBlock.Fields));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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FileStaticSym &FileStatic) {
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error(IO.mapInteger(FileStatic.Index));
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error(IO.mapInteger(FileStatic.ModFilenameOffset));
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error(IO.mapEnum(FileStatic.Flags));
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error(IO.mapStringZ(FileStatic.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR, ExportSym &Export) {
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error(IO.mapInteger(Export.Ordinal));
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error(IO.mapEnum(Export.Flags));
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error(IO.mapStringZ(Export.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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Compile2Sym &Compile2) {
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error(IO.mapEnum(Compile2.Flags));
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error(IO.mapEnum(Compile2.Machine));
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error(IO.mapInteger(Compile2.VersionFrontendMajor));
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error(IO.mapInteger(Compile2.VersionFrontendMinor));
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error(IO.mapInteger(Compile2.VersionFrontendBuild));
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error(IO.mapInteger(Compile2.VersionBackendMajor));
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error(IO.mapInteger(Compile2.VersionBackendMinor));
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error(IO.mapInteger(Compile2.VersionBackendBuild));
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error(IO.mapStringZ(Compile2.Version));
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error(IO.mapStringZVectorZ(Compile2.ExtraStrings));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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Compile3Sym &Compile3) {
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error(IO.mapEnum(Compile3.Flags));
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error(IO.mapEnum(Compile3.Machine));
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error(IO.mapInteger(Compile3.VersionFrontendMajor));
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error(IO.mapInteger(Compile3.VersionFrontendMinor));
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error(IO.mapInteger(Compile3.VersionFrontendBuild));
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error(IO.mapInteger(Compile3.VersionFrontendQFE));
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error(IO.mapInteger(Compile3.VersionBackendMajor));
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error(IO.mapInteger(Compile3.VersionBackendMinor));
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error(IO.mapInteger(Compile3.VersionBackendBuild));
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error(IO.mapInteger(Compile3.VersionBackendQFE));
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error(IO.mapStringZ(Compile3.Version));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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ConstantSym &Constant) {
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error(IO.mapInteger(Constant.Type));
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error(IO.mapEncodedInteger(Constant.Value));
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error(IO.mapStringZ(Constant.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR, DataSym &Data) {
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error(IO.mapInteger(Data.Type));
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error(IO.mapInteger(Data.DataOffset));
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error(IO.mapInteger(Data.Segment));
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error(IO.mapStringZ(Data.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(
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CVSymbol &CVR, DefRangeFramePointerRelSym &DefRangeFramePointerRel) {
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error(IO.mapInteger(DefRangeFramePointerRel.Offset));
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error(mapLocalVariableAddrRange(IO, DefRangeFramePointerRel.Range));
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error(IO.mapVectorTail(DefRangeFramePointerRel.Gaps, MapGap()));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(
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CVSymbol &CVR,
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DefRangeFramePointerRelFullScopeSym &DefRangeFramePointerRelFullScope) {
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error(IO.mapInteger(DefRangeFramePointerRelFullScope.Offset));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(
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CVSymbol &CVR, DefRangeRegisterRelSym &DefRangeRegisterRel) {
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error(IO.mapObject(DefRangeRegisterRel.Hdr.Register));
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error(IO.mapObject(DefRangeRegisterRel.Hdr.Flags));
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error(IO.mapObject(DefRangeRegisterRel.Hdr.BasePointerOffset));
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error(mapLocalVariableAddrRange(IO, DefRangeRegisterRel.Range));
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error(IO.mapVectorTail(DefRangeRegisterRel.Gaps, MapGap()));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(
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CVSymbol &CVR, DefRangeRegisterSym &DefRangeRegister) {
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error(IO.mapObject(DefRangeRegister.Hdr.Register));
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error(IO.mapObject(DefRangeRegister.Hdr.MayHaveNoName));
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error(mapLocalVariableAddrRange(IO, DefRangeRegister.Range));
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error(IO.mapVectorTail(DefRangeRegister.Gaps, MapGap()));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(
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CVSymbol &CVR, DefRangeSubfieldRegisterSym &DefRangeSubfieldRegister) {
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error(IO.mapObject(DefRangeSubfieldRegister.Hdr.Register));
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error(IO.mapObject(DefRangeSubfieldRegister.Hdr.MayHaveNoName));
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error(IO.mapObject(DefRangeSubfieldRegister.Hdr.OffsetInParent));
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error(mapLocalVariableAddrRange(IO, DefRangeSubfieldRegister.Range));
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error(IO.mapVectorTail(DefRangeSubfieldRegister.Gaps, MapGap()));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(
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CVSymbol &CVR, DefRangeSubfieldSym &DefRangeSubfield) {
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error(IO.mapInteger(DefRangeSubfield.Program));
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error(IO.mapInteger(DefRangeSubfield.OffsetInParent));
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error(mapLocalVariableAddrRange(IO, DefRangeSubfield.Range));
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error(IO.mapVectorTail(DefRangeSubfield.Gaps, MapGap()));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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DefRangeSym &DefRange) {
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error(IO.mapInteger(DefRange.Program));
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error(mapLocalVariableAddrRange(IO, DefRange.Range));
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error(IO.mapVectorTail(DefRange.Gaps, MapGap()));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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FrameCookieSym &FrameCookie) {
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error(IO.mapInteger(FrameCookie.CodeOffset));
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error(IO.mapInteger(FrameCookie.Register));
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error(IO.mapEnum(FrameCookie.CookieKind));
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error(IO.mapInteger(FrameCookie.Flags));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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FrameProcSym &FrameProc) {
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error(IO.mapInteger(FrameProc.TotalFrameBytes));
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error(IO.mapInteger(FrameProc.PaddingFrameBytes));
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error(IO.mapInteger(FrameProc.OffsetToPadding));
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error(IO.mapInteger(FrameProc.BytesOfCalleeSavedRegisters));
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error(IO.mapInteger(FrameProc.OffsetOfExceptionHandler));
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error(IO.mapInteger(FrameProc.SectionIdOfExceptionHandler));
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error(IO.mapEnum(FrameProc.Flags));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(
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CVSymbol &CVR, HeapAllocationSiteSym &HeapAllocSite) {
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error(IO.mapInteger(HeapAllocSite.CodeOffset));
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error(IO.mapInteger(HeapAllocSite.Segment));
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error(IO.mapInteger(HeapAllocSite.CallInstructionSize));
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error(IO.mapInteger(HeapAllocSite.Type));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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InlineSiteSym &InlineSite) {
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error(IO.mapInteger(InlineSite.Parent));
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error(IO.mapInteger(InlineSite.End));
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error(IO.mapInteger(InlineSite.Inlinee));
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error(IO.mapByteVectorTail(InlineSite.AnnotationData));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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RegisterSym &Register) {
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error(IO.mapInteger(Register.Index));
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error(IO.mapEnum(Register.Register));
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error(IO.mapStringZ(Register.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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PublicSym32 &Public) {
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error(IO.mapEnum(Public.Flags));
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error(IO.mapInteger(Public.Offset));
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error(IO.mapInteger(Public.Segment));
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error(IO.mapStringZ(Public.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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ProcRefSym &ProcRef) {
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error(IO.mapInteger(ProcRef.SumName));
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error(IO.mapInteger(ProcRef.SymOffset));
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error(IO.mapInteger(ProcRef.Module));
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error(IO.mapStringZ(ProcRef.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR, LabelSym &Label) {
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error(IO.mapInteger(Label.CodeOffset));
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error(IO.mapInteger(Label.Segment));
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error(IO.mapEnum(Label.Flags));
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error(IO.mapStringZ(Label.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR, LocalSym &Local) {
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error(IO.mapInteger(Local.Type));
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error(IO.mapEnum(Local.Flags));
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error(IO.mapStringZ(Local.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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ObjNameSym &ObjName) {
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error(IO.mapInteger(ObjName.Signature));
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error(IO.mapStringZ(ObjName.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR, ProcSym &Proc) {
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error(IO.mapInteger(Proc.Parent));
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error(IO.mapInteger(Proc.End));
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error(IO.mapInteger(Proc.Next));
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error(IO.mapInteger(Proc.CodeSize));
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error(IO.mapInteger(Proc.DbgStart));
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error(IO.mapInteger(Proc.DbgEnd));
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error(IO.mapInteger(Proc.FunctionType));
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error(IO.mapInteger(Proc.CodeOffset));
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error(IO.mapInteger(Proc.Segment));
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error(IO.mapEnum(Proc.Flags));
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error(IO.mapStringZ(Proc.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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ScopeEndSym &ScopeEnd) {
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR, CallerSym &Caller) {
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error(IO.mapVectorN<uint32_t>(
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Caller.Indices,
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[](CodeViewRecordIO &IO, TypeIndex &N) { return IO.mapInteger(N); }));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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RegRelativeSym &RegRel) {
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error(IO.mapInteger(RegRel.Offset));
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error(IO.mapInteger(RegRel.Type));
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error(IO.mapEnum(RegRel.Register));
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error(IO.mapStringZ(RegRel.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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ThreadLocalDataSym &Data) {
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error(IO.mapInteger(Data.Type));
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error(IO.mapInteger(Data.DataOffset));
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error(IO.mapInteger(Data.Segment));
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error(IO.mapStringZ(Data.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR, UDTSym &UDT) {
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error(IO.mapInteger(UDT.Type));
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error(IO.mapStringZ(UDT.Name));
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return Error::success();
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}
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Error SymbolRecordMapping::visitKnownRecord(CVSymbol &CVR,
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UsingNamespaceSym &UN) {
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error(IO.mapStringZ(UN.Name));
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return Error::success();
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}
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RegisterId codeview::decodeFramePtrReg(EncodedFramePtrReg EncodedReg,
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CPUType CPU) {
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assert(unsigned(EncodedReg) < 4);
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switch (CPU) {
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// FIXME: Add ARM and AArch64 variants here.
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default:
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break;
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case CPUType::Intel8080:
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case CPUType::Intel8086:
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case CPUType::Intel80286:
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case CPUType::Intel80386:
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case CPUType::Intel80486:
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case CPUType::Pentium:
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case CPUType::PentiumPro:
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case CPUType::Pentium3:
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switch (EncodedReg) {
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case EncodedFramePtrReg::None: return RegisterId::NONE;
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case EncodedFramePtrReg::StackPtr: return RegisterId::VFRAME;
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case EncodedFramePtrReg::FramePtr: return RegisterId::EBP;
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case EncodedFramePtrReg::BasePtr: return RegisterId::EBX;
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}
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llvm_unreachable("bad encoding");
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case CPUType::X64:
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switch (EncodedReg) {
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case EncodedFramePtrReg::None: return RegisterId::NONE;
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case EncodedFramePtrReg::StackPtr: return RegisterId::RSP;
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case EncodedFramePtrReg::FramePtr: return RegisterId::RBP;
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case EncodedFramePtrReg::BasePtr: return RegisterId::R13;
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}
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llvm_unreachable("bad encoding");
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}
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return RegisterId::NONE;
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}
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EncodedFramePtrReg codeview::encodeFramePtrReg(RegisterId Reg, CPUType CPU) {
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switch (CPU) {
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// FIXME: Add ARM and AArch64 variants here.
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default:
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break;
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|
case CPUType::Intel8080:
|
|
case CPUType::Intel8086:
|
|
case CPUType::Intel80286:
|
|
case CPUType::Intel80386:
|
|
case CPUType::Intel80486:
|
|
case CPUType::Pentium:
|
|
case CPUType::PentiumPro:
|
|
case CPUType::Pentium3:
|
|
switch (Reg) {
|
|
case RegisterId::VFRAME:
|
|
return EncodedFramePtrReg::StackPtr;
|
|
case RegisterId::EBP:
|
|
return EncodedFramePtrReg::FramePtr;
|
|
case RegisterId::EBX:
|
|
return EncodedFramePtrReg::BasePtr;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case CPUType::X64:
|
|
switch (Reg) {
|
|
case RegisterId::RSP:
|
|
return EncodedFramePtrReg::StackPtr;
|
|
case RegisterId::RBP:
|
|
return EncodedFramePtrReg::FramePtr;
|
|
case RegisterId::R13:
|
|
return EncodedFramePtrReg::BasePtr;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
return EncodedFramePtrReg::None;
|
|
}
|