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llvm-mirror/lib/ObjectYAML/CodeViewYAMLDebugSections.cpp
Zachary Turner 3c82f40b07 [CodeView] Support remaining debug subsection types 
This adds support for Symbols, StringTable, and FrameData subsection
types.  Even though these subsections rarely if ever appear in a PDB
file (they are usually in object files), there's no theoretical reason
why they *couldn't* appear in a PDB.  The real issue though is that in
order to add support for dumping and writing them (which will be useful
for object files), we need a way to test them.  And since there is no
support for reading and writing them to / from object files yet, making
PDB support them is the best way to both add support for the underlying
format and add support for tests at the same time.  Later, when we go
to add support for reading / writing them from object files, we'll need
only minimal changes in the underlying read/write code.

llvm-svn: 305037
2017-06-09 00:28:08 +00:00

902 lines
33 KiB
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//===- CodeViewYAMLDebugSections.cpp - CodeView YAMLIO debug sections -----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines classes for handling the YAML representation of CodeView
// Debug Info.
//
//===----------------------------------------------------------------------===//
#include "llvm/ObjectYAML/CodeViewYAMLDebugSections.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/DebugInfo/CodeView/CodeViewError.h"
#include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h"
#include "llvm/DebugInfo/CodeView/DebugCrossExSubsection.h"
#include "llvm/DebugInfo/CodeView/DebugCrossImpSubsection.h"
#include "llvm/DebugInfo/CodeView/DebugFrameDataSubsection.h"
#include "llvm/DebugInfo/CodeView/DebugInlineeLinesSubsection.h"
#include "llvm/DebugInfo/CodeView/DebugLinesSubsection.h"
#include "llvm/DebugInfo/CodeView/DebugStringTableSubsection.h"
#include "llvm/DebugInfo/CodeView/DebugSubsectionVisitor.h"
#include "llvm/DebugInfo/CodeView/DebugSymbolsSubsection.h"
#include "llvm/DebugInfo/CodeView/EnumTables.h"
#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
#include "llvm/DebugInfo/CodeView/SymbolSerializer.h"
#include "llvm/ObjectYAML/CodeViewYAMLSymbols.h"
#include "llvm/Support/BinaryStreamWriter.h"
using namespace llvm;
using namespace llvm::codeview;
using namespace llvm::CodeViewYAML;
using namespace llvm::CodeViewYAML::detail;
using namespace llvm::yaml;
LLVM_YAML_IS_SEQUENCE_VECTOR(SourceFileChecksumEntry)
LLVM_YAML_IS_SEQUENCE_VECTOR(SourceLineEntry)
LLVM_YAML_IS_SEQUENCE_VECTOR(SourceColumnEntry)
LLVM_YAML_IS_SEQUENCE_VECTOR(SourceLineBlock)
LLVM_YAML_IS_SEQUENCE_VECTOR(SourceLineInfo)
LLVM_YAML_IS_SEQUENCE_VECTOR(InlineeSite)
LLVM_YAML_IS_SEQUENCE_VECTOR(InlineeInfo)
LLVM_YAML_IS_SEQUENCE_VECTOR(CrossModuleExport)
LLVM_YAML_IS_SEQUENCE_VECTOR(YAMLCrossModuleImport)
LLVM_YAML_IS_SEQUENCE_VECTOR(StringRef)
LLVM_YAML_IS_SEQUENCE_VECTOR(YAMLFrameData)
LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(uint32_t)
LLVM_YAML_DECLARE_SCALAR_TRAITS(HexFormattedString, false)
LLVM_YAML_DECLARE_ENUM_TRAITS(DebugSubsectionKind)
LLVM_YAML_DECLARE_ENUM_TRAITS(FileChecksumKind)
LLVM_YAML_DECLARE_BITSET_TRAITS(LineFlags)
LLVM_YAML_DECLARE_MAPPING_TRAITS(CrossModuleExport)
LLVM_YAML_DECLARE_MAPPING_TRAITS(YAMLFrameData)
LLVM_YAML_DECLARE_MAPPING_TRAITS(YAMLCrossModuleImport)
LLVM_YAML_DECLARE_MAPPING_TRAITS(CrossModuleImportItem)
LLVM_YAML_DECLARE_MAPPING_TRAITS(SourceLineEntry)
LLVM_YAML_DECLARE_MAPPING_TRAITS(SourceColumnEntry)
LLVM_YAML_DECLARE_MAPPING_TRAITS(SourceFileChecksumEntry)
LLVM_YAML_DECLARE_MAPPING_TRAITS(SourceLineBlock)
LLVM_YAML_DECLARE_MAPPING_TRAITS(InlineeSite)
namespace llvm {
namespace CodeViewYAML {
namespace detail {
struct YAMLSubsectionBase {
explicit YAMLSubsectionBase(DebugSubsectionKind Kind) : Kind(Kind) {}
DebugSubsectionKind Kind;
virtual ~YAMLSubsectionBase() {}
virtual void map(IO &IO) = 0;
virtual std::unique_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
DebugStringTableSubsection *UseStrings,
DebugChecksumsSubsection *UseChecksums) const = 0;
};
}
}
}
namespace {
struct YAMLChecksumsSubsection : public YAMLSubsectionBase {
YAMLChecksumsSubsection()
: YAMLSubsectionBase(DebugSubsectionKind::FileChecksums) {}
void map(IO &IO) override;
std::unique_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const override;
static Expected<std::shared_ptr<YAMLChecksumsSubsection>>
fromCodeViewSubsection(const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &FC);
std::vector<SourceFileChecksumEntry> Checksums;
};
struct YAMLLinesSubsection : public YAMLSubsectionBase {
YAMLLinesSubsection() : YAMLSubsectionBase(DebugSubsectionKind::Lines) {}
void map(IO &IO) override;
std::unique_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const override;
static Expected<std::shared_ptr<YAMLLinesSubsection>>
fromCodeViewSubsection(const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &Checksums,
const DebugLinesSubsectionRef &Lines);
SourceLineInfo Lines;
};
struct YAMLInlineeLinesSubsection : public YAMLSubsectionBase {
YAMLInlineeLinesSubsection()
: YAMLSubsectionBase(DebugSubsectionKind::InlineeLines) {}
void map(IO &IO) override;
std::unique_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const override;
static Expected<std::shared_ptr<YAMLInlineeLinesSubsection>>
fromCodeViewSubsection(const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &Checksums,
const DebugInlineeLinesSubsectionRef &Lines);
InlineeInfo InlineeLines;
};
struct YAMLCrossModuleExportsSubsection : public YAMLSubsectionBase {
YAMLCrossModuleExportsSubsection()
: YAMLSubsectionBase(DebugSubsectionKind::CrossScopeExports) {}
void map(IO &IO) override;
std::unique_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const override;
static Expected<std::shared_ptr<YAMLCrossModuleExportsSubsection>>
fromCodeViewSubsection(const DebugCrossModuleExportsSubsectionRef &Exports);
std::vector<CrossModuleExport> Exports;
};
struct YAMLCrossModuleImportsSubsection : public YAMLSubsectionBase {
YAMLCrossModuleImportsSubsection()
: YAMLSubsectionBase(DebugSubsectionKind::CrossScopeImports) {}
void map(IO &IO) override;
std::unique_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const override;
static Expected<std::shared_ptr<YAMLCrossModuleImportsSubsection>>
fromCodeViewSubsection(const DebugStringTableSubsectionRef &Strings,
const DebugCrossModuleImportsSubsectionRef &Imports);
std::vector<YAMLCrossModuleImport> Imports;
};
struct YAMLSymbolsSubsection : public YAMLSubsectionBase {
YAMLSymbolsSubsection() : YAMLSubsectionBase(DebugSubsectionKind::Symbols) {}
void map(IO &IO) override;
std::unique_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const override;
static Expected<std::shared_ptr<YAMLSymbolsSubsection>>
fromCodeViewSubsection(const DebugSymbolsSubsectionRef &Symbols);
std::vector<CodeViewYAML::SymbolRecord> Symbols;
};
struct YAMLStringTableSubsection : public YAMLSubsectionBase {
YAMLStringTableSubsection()
: YAMLSubsectionBase(DebugSubsectionKind::StringTable) {}
void map(IO &IO) override;
std::unique_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const override;
static Expected<std::shared_ptr<YAMLStringTableSubsection>>
fromCodeViewSubsection(const DebugStringTableSubsectionRef &Strings);
std::vector<StringRef> Strings;
};
struct YAMLFrameDataSubsection : public YAMLSubsectionBase {
YAMLFrameDataSubsection()
: YAMLSubsectionBase(DebugSubsectionKind::FrameData) {}
void map(IO &IO) override;
std::unique_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const override;
static Expected<std::shared_ptr<YAMLFrameDataSubsection>>
fromCodeViewSubsection(const DebugStringTableSubsectionRef &Strings,
const DebugFrameDataSubsectionRef &Frames);
std::vector<YAMLFrameData> Frames;
};
}
void ScalarBitSetTraits<LineFlags>::bitset(IO &io, LineFlags &Flags) {
io.bitSetCase(Flags, "HasColumnInfo", LF_HaveColumns);
io.enumFallback<Hex16>(Flags);
}
void ScalarEnumerationTraits<FileChecksumKind>::enumeration(
IO &io, FileChecksumKind &Kind) {
io.enumCase(Kind, "None", FileChecksumKind::None);
io.enumCase(Kind, "MD5", FileChecksumKind::MD5);
io.enumCase(Kind, "SHA1", FileChecksumKind::SHA1);
io.enumCase(Kind, "SHA256", FileChecksumKind::SHA256);
}
void ScalarTraits<HexFormattedString>::output(const HexFormattedString &Value,
void *ctx, raw_ostream &Out) {
StringRef Bytes(reinterpret_cast<const char *>(Value.Bytes.data()),
Value.Bytes.size());
Out << toHex(Bytes);
}
StringRef ScalarTraits<HexFormattedString>::input(StringRef Scalar, void *ctxt,
HexFormattedString &Value) {
std::string H = fromHex(Scalar);
Value.Bytes.assign(H.begin(), H.end());
return StringRef();
}
void MappingTraits<SourceLineEntry>::mapping(IO &IO, SourceLineEntry &Obj) {
IO.mapRequired("Offset", Obj.Offset);
IO.mapRequired("LineStart", Obj.LineStart);
IO.mapRequired("IsStatement", Obj.IsStatement);
IO.mapRequired("EndDelta", Obj.EndDelta);
}
void MappingTraits<SourceColumnEntry>::mapping(IO &IO, SourceColumnEntry &Obj) {
IO.mapRequired("StartColumn", Obj.StartColumn);
IO.mapRequired("EndColumn", Obj.EndColumn);
}
void MappingTraits<SourceLineBlock>::mapping(IO &IO, SourceLineBlock &Obj) {
IO.mapRequired("FileName", Obj.FileName);
IO.mapRequired("Lines", Obj.Lines);
IO.mapRequired("Columns", Obj.Columns);
}
void MappingTraits<CrossModuleExport>::mapping(IO &IO, CrossModuleExport &Obj) {
IO.mapRequired("LocalId", Obj.Local);
IO.mapRequired("GlobalId", Obj.Global);
}
void MappingTraits<YAMLCrossModuleImport>::mapping(IO &IO,
YAMLCrossModuleImport &Obj) {
IO.mapRequired("Module", Obj.ModuleName);
IO.mapRequired("Imports", Obj.ImportIds);
}
void MappingTraits<SourceFileChecksumEntry>::mapping(
IO &IO, SourceFileChecksumEntry &Obj) {
IO.mapRequired("FileName", Obj.FileName);
IO.mapRequired("Kind", Obj.Kind);
IO.mapRequired("Checksum", Obj.ChecksumBytes);
}
void MappingTraits<InlineeSite>::mapping(IO &IO, InlineeSite &Obj) {
IO.mapRequired("FileName", Obj.FileName);
IO.mapRequired("LineNum", Obj.SourceLineNum);
IO.mapRequired("Inlinee", Obj.Inlinee);
IO.mapOptional("ExtraFiles", Obj.ExtraFiles);
}
void MappingTraits<YAMLFrameData>::mapping(IO &IO, YAMLFrameData &Obj) {
IO.mapRequired("CodeSize", Obj.CodeSize);
IO.mapRequired("FrameFunc", Obj.FrameFunc);
IO.mapRequired("LocalSize", Obj.LocalSize);
IO.mapOptional("MaxStackSize", Obj.MaxStackSize);
IO.mapOptional("ParamsSize", Obj.ParamsSize);
IO.mapOptional("PrologSize", Obj.PrologSize);
IO.mapOptional("RvaStart", Obj.RvaStart);
IO.mapOptional("SavedRegsSize", Obj.SavedRegsSize);
}
void YAMLChecksumsSubsection::map(IO &IO) {
IO.mapTag("!FileChecksums", true);
IO.mapRequired("Checksums", Checksums);
}
void YAMLLinesSubsection::map(IO &IO) {
IO.mapTag("!Lines", true);
IO.mapRequired("CodeSize", Lines.CodeSize);
IO.mapRequired("Flags", Lines.Flags);
IO.mapRequired("RelocOffset", Lines.RelocOffset);
IO.mapRequired("RelocSegment", Lines.RelocSegment);
IO.mapRequired("Blocks", Lines.Blocks);
}
void YAMLInlineeLinesSubsection::map(IO &IO) {
IO.mapTag("!InlineeLines", true);
IO.mapRequired("HasExtraFiles", InlineeLines.HasExtraFiles);
IO.mapRequired("Sites", InlineeLines.Sites);
}
void YAMLCrossModuleExportsSubsection::map(IO &IO) {
IO.mapTag("!CrossModuleExports", true);
IO.mapOptional("Exports", Exports);
}
void YAMLCrossModuleImportsSubsection::map(IO &IO) {
IO.mapTag("!CrossModuleImports", true);
IO.mapOptional("Imports", Imports);
}
void YAMLSymbolsSubsection::map(IO &IO) {
IO.mapTag("!Symbols", true);
IO.mapRequired("Records", Symbols);
}
void YAMLStringTableSubsection::map(IO &IO) {
IO.mapTag("!StringTable", true);
IO.mapRequired("Strings", Strings);
}
void YAMLFrameDataSubsection::map(IO &IO) {
IO.mapTag("!FrameData", true);
IO.mapRequired("Frames", Frames);
}
void MappingTraits<YAMLDebugSubsection>::mapping(
IO &IO, YAMLDebugSubsection &Subsection) {
if (!IO.outputting()) {
if (IO.mapTag("!FileChecksums")) {
auto SS = std::make_shared<YAMLChecksumsSubsection>();
Subsection.Subsection = SS;
} else if (IO.mapTag("!Lines")) {
Subsection.Subsection = std::make_shared<YAMLLinesSubsection>();
} else if (IO.mapTag("!InlineeLines")) {
Subsection.Subsection = std::make_shared<YAMLInlineeLinesSubsection>();
} else if (IO.mapTag("!CrossModuleExports")) {
Subsection.Subsection =
std::make_shared<YAMLCrossModuleExportsSubsection>();
} else if (IO.mapTag("!CrossModuleImports")) {
Subsection.Subsection =
std::make_shared<YAMLCrossModuleImportsSubsection>();
} else if (IO.mapTag("!Symbols")) {
Subsection.Subsection = std::make_shared<YAMLSymbolsSubsection>();
} else if (IO.mapTag("!StringTable")) {
Subsection.Subsection = std::make_shared<YAMLStringTableSubsection>();
} else if (IO.mapTag("!FrameData")) {
Subsection.Subsection = std::make_shared<YAMLFrameDataSubsection>();
} else {
llvm_unreachable("Unexpected subsection tag!");
}
}
Subsection.Subsection->map(IO);
}
static std::shared_ptr<YAMLChecksumsSubsection>
findChecksums(ArrayRef<YAMLDebugSubsection> Subsections) {
for (const auto &SS : Subsections) {
if (SS.Subsection->Kind == DebugSubsectionKind::FileChecksums) {
return std::static_pointer_cast<YAMLChecksumsSubsection>(SS.Subsection);
}
}
return nullptr;
}
std::unique_ptr<DebugSubsection> YAMLChecksumsSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator, DebugStringTableSubsection *UseStrings,
DebugChecksumsSubsection *UseChecksums) const {
assert(UseStrings && !UseChecksums);
auto Result = llvm::make_unique<DebugChecksumsSubsection>(*UseStrings);
for (const auto &CS : Checksums) {
Result->addChecksum(CS.FileName, CS.Kind, CS.ChecksumBytes.Bytes);
}
return std::move(Result);
}
std::unique_ptr<DebugSubsection> YAMLLinesSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator, DebugStringTableSubsection *UseStrings,
DebugChecksumsSubsection *UseChecksums) const {
assert(UseStrings && UseChecksums);
auto Result =
llvm::make_unique<DebugLinesSubsection>(*UseChecksums, *UseStrings);
Result->setCodeSize(Lines.CodeSize);
Result->setRelocationAddress(Lines.RelocSegment, Lines.RelocOffset);
Result->setFlags(Lines.Flags);
for (const auto &LC : Lines.Blocks) {
Result->createBlock(LC.FileName);
if (Result->hasColumnInfo()) {
for (const auto &Item : zip(LC.Lines, LC.Columns)) {
auto &L = std::get<0>(Item);
auto &C = std::get<1>(Item);
uint32_t LE = L.LineStart + L.EndDelta;
Result->addLineAndColumnInfo(L.Offset,
LineInfo(L.LineStart, LE, L.IsStatement),
C.StartColumn, C.EndColumn);
}
} else {
for (const auto &L : LC.Lines) {
uint32_t LE = L.LineStart + L.EndDelta;
Result->addLineInfo(L.Offset, LineInfo(L.LineStart, LE, L.IsStatement));
}
}
}
return llvm::cast<DebugSubsection>(std::move(Result));
}
std::unique_ptr<DebugSubsection>
YAMLInlineeLinesSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator, DebugStringTableSubsection *UseStrings,
DebugChecksumsSubsection *UseChecksums) const {
assert(UseChecksums);
auto Result = llvm::make_unique<DebugInlineeLinesSubsection>(
*UseChecksums, InlineeLines.HasExtraFiles);
for (const auto &Site : InlineeLines.Sites) {
Result->addInlineSite(TypeIndex(Site.Inlinee), Site.FileName,
Site.SourceLineNum);
if (!InlineeLines.HasExtraFiles)
continue;
for (auto EF : Site.ExtraFiles) {
Result->addExtraFile(EF);
}
}
return llvm::cast<DebugSubsection>(std::move(Result));
}
std::unique_ptr<DebugSubsection>
YAMLCrossModuleExportsSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator, DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const {
auto Result = llvm::make_unique<DebugCrossModuleExportsSubsection>();
for (const auto &M : Exports)
Result->addMapping(M.Local, M.Global);
return llvm::cast<DebugSubsection>(std::move(Result));
}
std::unique_ptr<DebugSubsection>
YAMLCrossModuleImportsSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator, DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const {
auto Result = llvm::make_unique<DebugCrossModuleImportsSubsection>(*Strings);
for (const auto &M : Imports) {
for (const auto Id : M.ImportIds)
Result->addImport(M.ModuleName, Id);
}
return llvm::cast<DebugSubsection>(std::move(Result));
}
std::unique_ptr<DebugSubsection> YAMLSymbolsSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator, DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const {
auto Result = llvm::make_unique<DebugSymbolsSubsection>();
for (const auto &Sym : Symbols)
Result->addSymbol(
Sym.toCodeViewSymbol(Allocator, CodeViewContainer::ObjectFile));
return std::move(Result);
}
std::unique_ptr<DebugSubsection>
YAMLStringTableSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator, DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const {
auto Result = llvm::make_unique<DebugStringTableSubsection>();
for (const auto &Str : this->Strings)
Result->insert(Str);
return std::move(Result);
}
std::unique_ptr<DebugSubsection> YAMLFrameDataSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator, DebugStringTableSubsection *Strings,
DebugChecksumsSubsection *Checksums) const {
assert(Strings);
auto Result = llvm::make_unique<DebugFrameDataSubsection>();
for (const auto &YF : Frames) {
codeview::FrameData F;
F.CodeSize = YF.CodeSize;
F.Flags = YF.Flags;
F.LocalSize = YF.LocalSize;
F.MaxStackSize = YF.MaxStackSize;
F.ParamsSize = YF.ParamsSize;
F.PrologSize = YF.PrologSize;
F.RvaStart = YF.RvaStart;
F.SavedRegsSize = YF.SavedRegsSize;
F.FrameFunc = Strings->insert(YF.FrameFunc);
Result->addFrameData(F);
}
return std::move(Result);
}
static Expected<SourceFileChecksumEntry>
convertOneChecksum(const DebugStringTableSubsectionRef &Strings,
const FileChecksumEntry &CS) {
auto ExpectedString = Strings.getString(CS.FileNameOffset);
if (!ExpectedString)
return ExpectedString.takeError();
SourceFileChecksumEntry Result;
Result.ChecksumBytes.Bytes = CS.Checksum;
Result.Kind = CS.Kind;
Result.FileName = *ExpectedString;
return Result;
}
static Expected<StringRef>
getFileName(const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &Checksums, uint32_t FileID) {
auto Iter = Checksums.getArray().at(FileID);
if (Iter == Checksums.getArray().end())
return make_error<CodeViewError>(cv_error_code::no_records);
uint32_t Offset = Iter->FileNameOffset;
return Strings.getString(Offset);
}
Expected<std::shared_ptr<YAMLChecksumsSubsection>>
YAMLChecksumsSubsection::fromCodeViewSubsection(
const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &FC) {
auto Result = std::make_shared<YAMLChecksumsSubsection>();
for (const auto &CS : FC) {
auto ConvertedCS = convertOneChecksum(Strings, CS);
if (!ConvertedCS)
return ConvertedCS.takeError();
Result->Checksums.push_back(*ConvertedCS);
}
return Result;
}
Expected<std::shared_ptr<YAMLLinesSubsection>>
YAMLLinesSubsection::fromCodeViewSubsection(
const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &Checksums,
const DebugLinesSubsectionRef &Lines) {
auto Result = std::make_shared<YAMLLinesSubsection>();
Result->Lines.CodeSize = Lines.header()->CodeSize;
Result->Lines.RelocOffset = Lines.header()->RelocOffset;
Result->Lines.RelocSegment = Lines.header()->RelocSegment;
Result->Lines.Flags = static_cast<LineFlags>(uint16_t(Lines.header()->Flags));
for (const auto &L : Lines) {
SourceLineBlock Block;
auto EF = getFileName(Strings, Checksums, L.NameIndex);
if (!EF)
return EF.takeError();
Block.FileName = *EF;
if (Lines.hasColumnInfo()) {
for (const auto &C : L.Columns) {
SourceColumnEntry SCE;
SCE.EndColumn = C.EndColumn;
SCE.StartColumn = C.StartColumn;
Block.Columns.push_back(SCE);
}
}
for (const auto &LN : L.LineNumbers) {
SourceLineEntry SLE;
LineInfo LI(LN.Flags);
SLE.Offset = LN.Offset;
SLE.LineStart = LI.getStartLine();
SLE.EndDelta = LI.getLineDelta();
SLE.IsStatement = LI.isStatement();
Block.Lines.push_back(SLE);
}
Result->Lines.Blocks.push_back(Block);
}
return Result;
}
Expected<std::shared_ptr<YAMLInlineeLinesSubsection>>
YAMLInlineeLinesSubsection::fromCodeViewSubsection(
const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &Checksums,
const DebugInlineeLinesSubsectionRef &Lines) {
auto Result = std::make_shared<YAMLInlineeLinesSubsection>();
Result->InlineeLines.HasExtraFiles = Lines.hasExtraFiles();
for (const auto &IL : Lines) {
InlineeSite Site;
auto ExpF = getFileName(Strings, Checksums, IL.Header->FileID);
if (!ExpF)
return ExpF.takeError();
Site.FileName = *ExpF;
Site.Inlinee = IL.Header->Inlinee.getIndex();
Site.SourceLineNum = IL.Header->SourceLineNum;
if (Lines.hasExtraFiles()) {
for (const auto EF : IL.ExtraFiles) {
auto ExpF2 = getFileName(Strings, Checksums, EF);
if (!ExpF2)
return ExpF2.takeError();
Site.ExtraFiles.push_back(*ExpF2);
}
}
Result->InlineeLines.Sites.push_back(Site);
}
return Result;
}
Expected<std::shared_ptr<YAMLCrossModuleExportsSubsection>>
YAMLCrossModuleExportsSubsection::fromCodeViewSubsection(
const DebugCrossModuleExportsSubsectionRef &Exports) {
auto Result = std::make_shared<YAMLCrossModuleExportsSubsection>();
Result->Exports.assign(Exports.begin(), Exports.end());
return Result;
}
Expected<std::shared_ptr<YAMLCrossModuleImportsSubsection>>
YAMLCrossModuleImportsSubsection::fromCodeViewSubsection(
const DebugStringTableSubsectionRef &Strings,
const DebugCrossModuleImportsSubsectionRef &Imports) {
auto Result = std::make_shared<YAMLCrossModuleImportsSubsection>();
for (const auto &CMI : Imports) {
YAMLCrossModuleImport YCMI;
auto ExpectedStr = Strings.getString(CMI.Header->ModuleNameOffset);
if (!ExpectedStr)
return ExpectedStr.takeError();
YCMI.ModuleName = *ExpectedStr;
YCMI.ImportIds.assign(CMI.Imports.begin(), CMI.Imports.end());
Result->Imports.push_back(YCMI);
}
return Result;
}
Expected<std::shared_ptr<YAMLSymbolsSubsection>>
YAMLSymbolsSubsection::fromCodeViewSubsection(
const DebugSymbolsSubsectionRef &Symbols) {
auto Result = std::make_shared<YAMLSymbolsSubsection>();
for (const auto &Sym : Symbols) {
auto S = CodeViewYAML::SymbolRecord::fromCodeViewSymbol(Sym);
if (!S)
return joinErrors(make_error<CodeViewError>(
cv_error_code::corrupt_record,
"Invalid CodeView Symbol Record in SymbolRecord "
"subsection of .debug$S while converting to YAML!"),
S.takeError());
Result->Symbols.push_back(*S);
}
return Result;
}
Expected<std::shared_ptr<YAMLStringTableSubsection>>
YAMLStringTableSubsection::fromCodeViewSubsection(
const DebugStringTableSubsectionRef &Strings) {
auto Result = std::make_shared<YAMLStringTableSubsection>();
BinaryStreamReader Reader(Strings.getBuffer());
StringRef S;
// First item is a single null string, skip it.
if (auto EC = Reader.readCString(S))
return std::move(EC);
assert(S.empty());
while (Reader.bytesRemaining() > 0) {
if (auto EC = Reader.readCString(S))
return std::move(EC);
Result->Strings.push_back(S);
}
return Result;
}
Expected<std::shared_ptr<YAMLFrameDataSubsection>>
YAMLFrameDataSubsection::fromCodeViewSubsection(
const DebugStringTableSubsectionRef &Strings,
const DebugFrameDataSubsectionRef &Frames) {
auto Result = std::make_shared<YAMLFrameDataSubsection>();
for (const auto &F : Frames) {
YAMLFrameData YF;
YF.CodeSize = F.CodeSize;
YF.Flags = F.Flags;
YF.LocalSize = F.LocalSize;
YF.MaxStackSize = F.MaxStackSize;
YF.ParamsSize = F.ParamsSize;
YF.PrologSize = F.PrologSize;
YF.RvaStart = F.RvaStart;
YF.SavedRegsSize = F.SavedRegsSize;
auto ES = Strings.getString(F.FrameFunc);
if (!ES)
return joinErrors(
make_error<CodeViewError>(
cv_error_code::no_records,
"Could not find string for string id while mapping FrameData!"),
ES.takeError());
YF.FrameFunc = *ES;
Result->Frames.push_back(YF);
}
return Result;
}
Expected<std::vector<std::unique_ptr<DebugSubsection>>>
llvm::CodeViewYAML::toCodeViewSubsectionList(
BumpPtrAllocator &Allocator, ArrayRef<YAMLDebugSubsection> Subsections,
DebugStringTableSubsection &Strings) {
std::vector<std::unique_ptr<DebugSubsection>> Result;
if (Subsections.empty())
return std::move(Result);
auto Checksums = findChecksums(Subsections);
std::unique_ptr<DebugSubsection> ChecksumsBase;
if (Checksums)
ChecksumsBase =
Checksums->toCodeViewSubsection(Allocator, &Strings, nullptr);
DebugChecksumsSubsection *CS =
static_cast<DebugChecksumsSubsection *>(ChecksumsBase.get());
for (const auto &SS : Subsections) {
// We've already converted the checksums subsection, don't do it
// twice.
std::unique_ptr<DebugSubsection> CVS;
if (SS.Subsection->Kind == DebugSubsectionKind::FileChecksums)
CVS = std::move(ChecksumsBase);
else
CVS = SS.Subsection->toCodeViewSubsection(Allocator, &Strings, CS);
assert(CVS != nullptr);
Result.push_back(std::move(CVS));
}
return std::move(Result);
}
Expected<std::vector<std::unique_ptr<codeview::DebugSubsection>>>
llvm::CodeViewYAML::toCodeViewSubsectionList(
BumpPtrAllocator &Allocator, ArrayRef<YAMLDebugSubsection> Subsections,
std::unique_ptr<DebugStringTableSubsection> &TakeStrings,
DebugStringTableSubsection *StringsRef) {
std::vector<std::unique_ptr<DebugSubsection>> Result;
if (Subsections.empty())
return std::move(Result);
auto Checksums = findChecksums(Subsections);
std::unique_ptr<DebugSubsection> ChecksumsBase;
if (Checksums)
ChecksumsBase =
Checksums->toCodeViewSubsection(Allocator, StringsRef, nullptr);
DebugChecksumsSubsection *CS =
static_cast<DebugChecksumsSubsection *>(ChecksumsBase.get());
for (const auto &SS : Subsections) {
// We've already converted the checksums and string table subsection, don't
// do it twice.
std::unique_ptr<DebugSubsection> CVS;
if (SS.Subsection->Kind == DebugSubsectionKind::FileChecksums)
CVS = std::move(ChecksumsBase);
else if (SS.Subsection->Kind == DebugSubsectionKind::StringTable) {
assert(TakeStrings && "No string table!");
CVS = std::move(TakeStrings);
} else
CVS = SS.Subsection->toCodeViewSubsection(Allocator, StringsRef, CS);
assert(CVS != nullptr);
Result.push_back(std::move(CVS));
}
return std::move(Result);
}
namespace {
struct SubsectionConversionVisitor : public DebugSubsectionVisitor {
SubsectionConversionVisitor() {}
Error visitUnknown(DebugUnknownSubsectionRef &Unknown) override;
Error visitLines(DebugLinesSubsectionRef &Lines,
const DebugSubsectionState &State) override;
Error visitFileChecksums(DebugChecksumsSubsectionRef &Checksums,
const DebugSubsectionState &State) override;
Error visitInlineeLines(DebugInlineeLinesSubsectionRef &Inlinees,
const DebugSubsectionState &State) override;
Error visitCrossModuleExports(DebugCrossModuleExportsSubsectionRef &Checksums,
const DebugSubsectionState &State) override;
Error visitCrossModuleImports(DebugCrossModuleImportsSubsectionRef &Inlinees,
const DebugSubsectionState &State) override;
Error visitStringTable(DebugStringTableSubsectionRef &ST,
const DebugSubsectionState &State) override;
Error visitSymbols(DebugSymbolsSubsectionRef &Symbols,
const DebugSubsectionState &State) override;
Error visitFrameData(DebugFrameDataSubsectionRef &Symbols,
const DebugSubsectionState &State) override;
YAMLDebugSubsection Subsection;
};
Error SubsectionConversionVisitor::visitUnknown(
DebugUnknownSubsectionRef &Unknown) {
return make_error<CodeViewError>(cv_error_code::operation_unsupported);
}
Error SubsectionConversionVisitor::visitLines(
DebugLinesSubsectionRef &Lines, const DebugSubsectionState &State) {
auto Result = YAMLLinesSubsection::fromCodeViewSubsection(
State.strings(), State.checksums(), Lines);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitFileChecksums(
DebugChecksumsSubsectionRef &Checksums, const DebugSubsectionState &State) {
auto Result = YAMLChecksumsSubsection::fromCodeViewSubsection(State.strings(),
Checksums);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitInlineeLines(
DebugInlineeLinesSubsectionRef &Inlinees,
const DebugSubsectionState &State) {
auto Result = YAMLInlineeLinesSubsection::fromCodeViewSubsection(
State.strings(), State.checksums(), Inlinees);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitCrossModuleExports(
DebugCrossModuleExportsSubsectionRef &Exports,
const DebugSubsectionState &State) {
auto Result =
YAMLCrossModuleExportsSubsection::fromCodeViewSubsection(Exports);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitCrossModuleImports(
DebugCrossModuleImportsSubsectionRef &Imports,
const DebugSubsectionState &State) {
auto Result = YAMLCrossModuleImportsSubsection::fromCodeViewSubsection(
State.strings(), Imports);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitStringTable(
DebugStringTableSubsectionRef &Strings, const DebugSubsectionState &State) {
auto Result = YAMLStringTableSubsection::fromCodeViewSubsection(Strings);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitSymbols(
DebugSymbolsSubsectionRef &Symbols, const DebugSubsectionState &State) {
auto Result = YAMLSymbolsSubsection::fromCodeViewSubsection(Symbols);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitFrameData(
DebugFrameDataSubsectionRef &Frames, const DebugSubsectionState &State) {
auto Result =
YAMLFrameDataSubsection::fromCodeViewSubsection(State.strings(), Frames);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
}
Expected<YAMLDebugSubsection> YAMLDebugSubsection::fromCodeViewSubection(
const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &Checksums,
const DebugSubsectionRecord &SS) {
DebugSubsectionState State(Strings, Checksums);
SubsectionConversionVisitor V;
if (auto EC = visitDebugSubsection(SS, V, State))
return std::move(EC);
return V.Subsection;
}
std::unique_ptr<DebugStringTableSubsection>
llvm::CodeViewYAML::findStringTable(ArrayRef<YAMLDebugSubsection> Sections) {
for (const auto &SS : Sections) {
if (SS.Subsection->Kind != DebugSubsectionKind::StringTable)
continue;
// String Table doesn't use the allocator.
BumpPtrAllocator Allocator;
auto Result =
SS.Subsection->toCodeViewSubsection(Allocator, nullptr, nullptr);
return llvm::cast<DebugStringTableSubsection>(std::move(Result));
}
return nullptr;
}
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