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llvm-mirror/lib/ObjectYAML/CodeViewYAMLDebugSections.cpp
Richard Smith 3df7bb7832 Fix ODR violations due to abuse of LLVM_YAML_IS_(FLOW_)?SEQUENCE_VECTOR 
This is a short-term fix for PR33650 aimed to get the modules build bots green again.

Remove all the places where we use the LLVM_YAML_IS_(FLOW_)?SEQUENCE_VECTOR
macros to try to locally specialize a global template for a global type. That's
not how C++ works.

Instead, we now centrally define how to format vectors of fundamental types and
of string (std::string and StringRef). We use flow formatting for the former
cases, since that's the obvious right thing to do; in the latter case, it's
less clear what the right choice is, but flow formatting is really bad for some
cases (due to very long strings), so we pick block formatting. (Many of the
cases that were using flow formatting for strings are improved by this change.)

Other than the flow -> block formatting change for some vectors of strings,
this should result in no functionality change.

Differential Revision: https://reviews.llvm.org/D34907

Corresponding updates to clang, clang-tools-extra, and lld to follow.

llvm-svn: 306878
2017-06-30 20:56:57 +00:00

936 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/DebugSymbolRVASubsection.h"
#include "llvm/DebugInfo/CodeView/DebugSymbolsSubsection.h"
#include "llvm/DebugInfo/CodeView/EnumTables.h"
#include "llvm/DebugInfo/CodeView/StringsAndChecksums.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(YAMLFrameData)
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::shared_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const = 0;
};
}
}
}
namespace {
struct YAMLChecksumsSubsection : public YAMLSubsectionBase {
YAMLChecksumsSubsection()
: YAMLSubsectionBase(DebugSubsectionKind::FileChecksums) {}
void map(IO &IO) override;
std::shared_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) 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::shared_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) 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::shared_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) 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::shared_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) 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::shared_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) 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::shared_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) 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::shared_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) 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::shared_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const override;
static Expected<std::shared_ptr<YAMLFrameDataSubsection>>
fromCodeViewSubsection(const DebugStringTableSubsectionRef &Strings,
const DebugFrameDataSubsectionRef &Frames);
std::vector<YAMLFrameData> Frames;
};
struct YAMLCoffSymbolRVASubsection : public YAMLSubsectionBase {
YAMLCoffSymbolRVASubsection()
: YAMLSubsectionBase(DebugSubsectionKind::CoffSymbolRVA) {}
void map(IO &IO) override;
std::shared_ptr<DebugSubsection>
toCodeViewSubsection(BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const override;
static Expected<std::shared_ptr<YAMLCoffSymbolRVASubsection>>
fromCodeViewSubsection(const DebugSymbolRVASubsectionRef &RVAs);
std::vector<uint32_t> RVAs;
};
}
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 YAMLCoffSymbolRVASubsection::map(IO &IO) {
IO.mapTag("!COFFSymbolRVAs", true);
IO.mapRequired("RVAs", RVAs);
}
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 if (IO.mapTag("!COFFSymbolRVAs")) {
Subsection.Subsection = std::make_shared<YAMLCoffSymbolRVASubsection>();
} else {
llvm_unreachable("Unexpected subsection tag!");
}
}
Subsection.Subsection->map(IO);
}
std::shared_ptr<DebugSubsection> YAMLChecksumsSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const {
assert(SC.hasStrings());
auto Result = std::make_shared<DebugChecksumsSubsection>(*SC.strings());
for (const auto &CS : Checksums) {
Result->addChecksum(CS.FileName, CS.Kind, CS.ChecksumBytes.Bytes);
}
return Result;
}
std::shared_ptr<DebugSubsection> YAMLLinesSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const {
assert(SC.hasStrings() && SC.hasChecksums());
auto Result =
std::make_shared<DebugLinesSubsection>(*SC.checksums(), *SC.strings());
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 Result;
}
std::shared_ptr<DebugSubsection>
YAMLInlineeLinesSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const {
assert(SC.hasChecksums());
auto Result = std::make_shared<DebugInlineeLinesSubsection>(
*SC.checksums(), 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 Result;
}
std::shared_ptr<DebugSubsection>
YAMLCrossModuleExportsSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const {
auto Result = std::make_shared<DebugCrossModuleExportsSubsection>();
for (const auto &M : Exports)
Result->addMapping(M.Local, M.Global);
return Result;
}
std::shared_ptr<DebugSubsection>
YAMLCrossModuleImportsSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const {
assert(SC.hasStrings());
auto Result =
std::make_shared<DebugCrossModuleImportsSubsection>(*SC.strings());
for (const auto &M : Imports) {
for (const auto Id : M.ImportIds)
Result->addImport(M.ModuleName, Id);
}
return Result;
}
std::shared_ptr<DebugSubsection> YAMLSymbolsSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const {
auto Result = std::make_shared<DebugSymbolsSubsection>();
for (const auto &Sym : Symbols)
Result->addSymbol(
Sym.toCodeViewSymbol(Allocator, CodeViewContainer::ObjectFile));
return Result;
}
std::shared_ptr<DebugSubsection>
YAMLStringTableSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const {
auto Result = std::make_shared<DebugStringTableSubsection>();
for (const auto &Str : this->Strings)
Result->insert(Str);
return Result;
}
std::shared_ptr<DebugSubsection> YAMLFrameDataSubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const {
assert(SC.hasStrings());
auto Result = std::make_shared<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 = SC.strings()->insert(YF.FrameFunc);
Result->addFrameData(F);
}
return Result;
}
std::shared_ptr<DebugSubsection>
YAMLCoffSymbolRVASubsection::toCodeViewSubsection(
BumpPtrAllocator &Allocator,
const codeview::StringsAndChecksums &SC) const {
auto Result = std::make_shared<DebugSymbolRVASubsection>();
for (const auto &RVA : RVAs)
Result->addRVA(RVA);
return 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::shared_ptr<YAMLCoffSymbolRVASubsection>>
YAMLCoffSymbolRVASubsection::fromCodeViewSubsection(
const DebugSymbolRVASubsectionRef &Section) {
auto Result = std::make_shared<YAMLCoffSymbolRVASubsection>();
for (const auto &RVA : Section) {
Result->RVAs.push_back(RVA);
}
return Result;
}
Expected<std::vector<std::shared_ptr<DebugSubsection>>>
llvm::CodeViewYAML::toCodeViewSubsectionList(
BumpPtrAllocator &Allocator, ArrayRef<YAMLDebugSubsection> Subsections,
const codeview::StringsAndChecksums &SC) {
std::vector<std::shared_ptr<DebugSubsection>> Result;
if (Subsections.empty())
return std::move(Result);
for (const auto &SS : Subsections) {
std::shared_ptr<DebugSubsection> CVS;
CVS = SS.Subsection->toCodeViewSubsection(Allocator, SC);
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 StringsAndChecksumsRef &State) override;
Error visitFileChecksums(DebugChecksumsSubsectionRef &Checksums,
const StringsAndChecksumsRef &State) override;
Error visitInlineeLines(DebugInlineeLinesSubsectionRef &Inlinees,
const StringsAndChecksumsRef &State) override;
Error visitCrossModuleExports(DebugCrossModuleExportsSubsectionRef &Checksums,
const StringsAndChecksumsRef &State) override;
Error visitCrossModuleImports(DebugCrossModuleImportsSubsectionRef &Inlinees,
const StringsAndChecksumsRef &State) override;
Error visitStringTable(DebugStringTableSubsectionRef &ST,
const StringsAndChecksumsRef &State) override;
Error visitSymbols(DebugSymbolsSubsectionRef &Symbols,
const StringsAndChecksumsRef &State) override;
Error visitFrameData(DebugFrameDataSubsectionRef &Symbols,
const StringsAndChecksumsRef &State) override;
Error visitCOFFSymbolRVAs(DebugSymbolRVASubsectionRef &Symbols,
const StringsAndChecksumsRef &State) override;
YAMLDebugSubsection Subsection;
};
Error SubsectionConversionVisitor::visitUnknown(
DebugUnknownSubsectionRef &Unknown) {
return make_error<CodeViewError>(cv_error_code::operation_unsupported);
}
Error SubsectionConversionVisitor::visitLines(
DebugLinesSubsectionRef &Lines, const StringsAndChecksumsRef &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 StringsAndChecksumsRef &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 StringsAndChecksumsRef &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 StringsAndChecksumsRef &State) {
auto Result =
YAMLCrossModuleExportsSubsection::fromCodeViewSubsection(Exports);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitCrossModuleImports(
DebugCrossModuleImportsSubsectionRef &Imports,
const StringsAndChecksumsRef &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 StringsAndChecksumsRef &State) {
auto Result = YAMLStringTableSubsection::fromCodeViewSubsection(Strings);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitSymbols(
DebugSymbolsSubsectionRef &Symbols, const StringsAndChecksumsRef &State) {
auto Result = YAMLSymbolsSubsection::fromCodeViewSubsection(Symbols);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitFrameData(
DebugFrameDataSubsectionRef &Frames, const StringsAndChecksumsRef &State) {
auto Result =
YAMLFrameDataSubsection::fromCodeViewSubsection(State.strings(), Frames);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
Error SubsectionConversionVisitor::visitCOFFSymbolRVAs(
DebugSymbolRVASubsectionRef &RVAs, const StringsAndChecksumsRef &State) {
auto Result = YAMLCoffSymbolRVASubsection::fromCodeViewSubsection(RVAs);
if (!Result)
return Result.takeError();
Subsection.Subsection = *Result;
return Error::success();
}
}
Expected<YAMLDebugSubsection>
YAMLDebugSubsection::fromCodeViewSubection(const StringsAndChecksumsRef &SC,
const DebugSubsectionRecord &SS) {
SubsectionConversionVisitor V;
if (auto EC = visitDebugSubsection(SS, V, SC))
return std::move(EC);
return V.Subsection;
}
std::vector<YAMLDebugSubsection>
llvm::CodeViewYAML::fromDebugS(ArrayRef<uint8_t> Data,
const StringsAndChecksumsRef &SC) {
BinaryStreamReader Reader(Data, support::little);
uint32_t Magic;
ExitOnError Err("Invalid .debug$S section!");
Err(Reader.readInteger(Magic));
assert(Magic == COFF::DEBUG_SECTION_MAGIC && "Invalid .debug$S section!");
DebugSubsectionArray Subsections;
Err(Reader.readArray(Subsections, Reader.bytesRemaining()));
std::vector<YAMLDebugSubsection> Result;
for (const auto &SS : Subsections) {
auto YamlSS = Err(YAMLDebugSubsection::fromCodeViewSubection(SC, SS));
Result.push_back(YamlSS);
}
return Result;
}
void llvm::CodeViewYAML::initializeStringsAndChecksums(
ArrayRef<YAMLDebugSubsection> Sections, codeview::StringsAndChecksums &SC) {
// String Table and Checksums subsections don't use the allocator.
BumpPtrAllocator Allocator;
// It's possible for checksums and strings to even appear in different debug$S
// sections, so we have to make this a stateful function that can build up
// the strings and checksums field over multiple iterations.
// File Checksums require the string table, but may become before it, so we
// have to scan for strings first, then scan for checksums again from the
// beginning.
if (!SC.hasStrings()) {
for (const auto &SS : Sections) {
if (SS.Subsection->Kind != DebugSubsectionKind::StringTable)
continue;
auto Result = SS.Subsection->toCodeViewSubsection(Allocator, SC);
SC.setStrings(
std::static_pointer_cast<DebugStringTableSubsection>(Result));
break;
}
}
if (SC.hasStrings() && !SC.hasChecksums()) {
for (const auto &SS : Sections) {
if (SS.Subsection->Kind != DebugSubsectionKind::FileChecksums)
continue;
auto Result = SS.Subsection->toCodeViewSubsection(Allocator, SC);
SC.setChecksums(
std::static_pointer_cast<DebugChecksumsSubsection>(Result));
break;
}
}
}
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