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//===- DebugSubsectionVisitor.cpp -------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/CodeView/DebugSubsectionVisitor.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/DebugSubsectionRecord.h"
#include "llvm/DebugInfo/CodeView/DebugSymbolRVASubsection.h"
#include "llvm/DebugInfo/CodeView/DebugSymbolsSubsection.h"
#include "llvm/DebugInfo/CodeView/DebugUnknownSubsection.h"
#include "llvm/Support/BinaryStreamReader.h"
#include "llvm/Support/BinaryStreamRef.h"
using namespace llvm;
using namespace llvm::codeview;
DebugSubsectionState::DebugSubsectionState() {}
DebugSubsectionState::DebugSubsectionState(
const DebugStringTableSubsectionRef &Strings)
: Strings(&Strings) {}
DebugSubsectionState::DebugSubsectionState(
const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &Checksums)
: Strings(&Strings), Checksums(&Checksums) {}
void DebugSubsectionState::initializeStrings(const DebugSubsectionRecord &SR) {
assert(SR.kind() == DebugSubsectionKind::StringTable);
assert(!Strings && "Found a string table even though we already have one!");
OwnedStrings = llvm::make_unique<DebugStringTableSubsectionRef>();
consumeError(OwnedStrings->initialize(SR.getRecordData()));
Strings = OwnedStrings.get();
}
void DebugSubsectionState::initializeChecksums(
const DebugSubsectionRecord &FCR) {
assert(FCR.kind() == DebugSubsectionKind::FileChecksums);
if (Checksums)
return;
OwnedChecksums = llvm::make_unique<DebugChecksumsSubsectionRef>();
consumeError(OwnedChecksums->initialize(FCR.getRecordData()));
Checksums = OwnedChecksums.get();
}
Error llvm::codeview::visitDebugSubsection(const DebugSubsectionRecord &R,
DebugSubsectionVisitor &V,
const DebugSubsectionState &State) {
BinaryStreamReader Reader(R.getRecordData());
switch (R.kind()) {
case DebugSubsectionKind::Lines: {
DebugLinesSubsectionRef Fragment;
if (auto EC = Fragment.initialize(Reader))
return EC;
return V.visitLines(Fragment, State);
}
case DebugSubsectionKind::FileChecksums: {
DebugChecksumsSubsectionRef Fragment;
if (auto EC = Fragment.initialize(Reader))
return EC;
return V.visitFileChecksums(Fragment, State);
}
case DebugSubsectionKind::InlineeLines: {
DebugInlineeLinesSubsectionRef Fragment;
if (auto EC = Fragment.initialize(Reader))
return EC;
return V.visitInlineeLines(Fragment, State);
}
case DebugSubsectionKind::CrossScopeExports: {
DebugCrossModuleExportsSubsectionRef Section;
if (auto EC = Section.initialize(Reader))
return EC;
return V.visitCrossModuleExports(Section, State);
}
case DebugSubsectionKind::CrossScopeImports: {
DebugCrossModuleImportsSubsectionRef Section;
if (auto EC = Section.initialize(Reader))
return EC;
return V.visitCrossModuleImports(Section, State);
}
case DebugSubsectionKind::Symbols: {
DebugSymbolsSubsectionRef Section;
if (auto EC = Section.initialize(Reader))
return EC;
return V.visitSymbols(Section, State);
}
case DebugSubsectionKind::StringTable: {
DebugStringTableSubsectionRef Section;
if (auto EC = Section.initialize(Reader))
return EC;
return V.visitStringTable(Section, State);
}
case DebugSubsectionKind::FrameData: {
DebugFrameDataSubsectionRef Section;
if (auto EC = Section.initialize(Reader))
return EC;
return V.visitFrameData(Section, State);
}
case DebugSubsectionKind::CoffSymbolRVA: {
DebugSymbolRVASubsectionRef Section;
if (auto EC = Section.initialize(Reader))
return EC;
return V.visitCOFFSymbolRVAs(Section, State);
}
default: {
DebugUnknownSubsectionRef Fragment(R.kind(), R.getRecordData());
return V.visitUnknown(Fragment);
}
}
}
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