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//===- InputFile.h -------------------------------------------- *- C++ --*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVMPDBDUMP_INPUTFILE_H
#define LLVM_TOOLS_LLVMPDBDUMP_INPUTFILE_H
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/PointerUnion.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/iterator.h"
#include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h"
#include "llvm/DebugInfo/CodeView/StringsAndChecksums.h"
#include "llvm/DebugInfo/PDB/Native/ModuleDebugStream.h"
#include "llvm/Object/Binary.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/Error.h"
namespace llvm {
namespace codeview {
class LazyRandomTypeCollection;
}
namespace object {
class COFFObjectFile;
} // namespace object
namespace pdb {
class InputFile;
class LinePrinter;
class PDBFile;
class NativeSession;
class SymbolGroupIterator;
class SymbolGroup;
class InputFile {
InputFile();
std::unique_ptr<NativeSession> PdbSession;
object::OwningBinary<object::Binary> CoffObject;
std::unique_ptr<MemoryBuffer> UnknownFile;
PointerUnion<PDBFile *, object::COFFObjectFile *, MemoryBuffer *> PdbOrObj;
using TypeCollectionPtr = std::unique_ptr<codeview::LazyRandomTypeCollection>;
TypeCollectionPtr Types;
TypeCollectionPtr Ids;
enum TypeCollectionKind { kTypes, kIds };
codeview::LazyRandomTypeCollection &
getOrCreateTypeCollection(TypeCollectionKind Kind);
public:
~InputFile();
InputFile(InputFile &&Other) = default;
static Expected<InputFile> open(StringRef Path,
bool AllowUnknownFile = false);
PDBFile &pdb();
const PDBFile &pdb() const;
object::COFFObjectFile &obj();
const object::COFFObjectFile &obj() const;
MemoryBuffer &unknown();
const MemoryBuffer &unknown() const;
StringRef getFilePath() const;
bool hasTypes() const;
bool hasIds() const;
codeview::LazyRandomTypeCollection &types();
codeview::LazyRandomTypeCollection &ids();
iterator_range<SymbolGroupIterator> symbol_groups();
SymbolGroupIterator symbol_groups_begin();
SymbolGroupIterator symbol_groups_end();
bool isPdb() const;
bool isObj() const;
bool isUnknown() const;
};
class SymbolGroup {
friend class SymbolGroupIterator;
public:
explicit SymbolGroup(InputFile *File, uint32_t GroupIndex = 0);
Expected<StringRef> getNameFromStringTable(uint32_t Offset) const;
void formatFromFileName(LinePrinter &Printer, StringRef File,
bool Append = false) const;
void formatFromChecksumsOffset(LinePrinter &Printer, uint32_t Offset,
bool Append = false) const;
StringRef name() const;
codeview::DebugSubsectionArray getDebugSubsections() const {
return Subsections;
}
const ModuleDebugStreamRef &getPdbModuleStream() const;
const InputFile &getFile() const { return *File; }
InputFile &getFile() { return *File; }
bool hasDebugStream() const { return DebugStream != nullptr; }
private:
void initializeForPdb(uint32_t Modi);
void updatePdbModi(uint32_t Modi);
void updateDebugS(const codeview::DebugSubsectionArray &SS);
void rebuildChecksumMap();
InputFile *File = nullptr;
StringRef Name;
codeview::DebugSubsectionArray Subsections;
std::shared_ptr<ModuleDebugStreamRef> DebugStream;
codeview::StringsAndChecksumsRef SC;
StringMap<codeview::FileChecksumEntry> ChecksumsByFile;
};
class SymbolGroupIterator
: public iterator_facade_base<SymbolGroupIterator,
std::forward_iterator_tag, SymbolGroup> {
public:
SymbolGroupIterator();
explicit SymbolGroupIterator(InputFile &File);
SymbolGroupIterator(const SymbolGroupIterator &Other) = default;
SymbolGroupIterator &operator=(const SymbolGroupIterator &R) = default;
const SymbolGroup &operator*() const;
SymbolGroup &operator*();
bool operator==(const SymbolGroupIterator &R) const;
SymbolGroupIterator &operator++();
private:
void scanToNextDebugS();
bool isEnd() const;
uint32_t Index = 0;
Optional<object::section_iterator> SectionIter;
SymbolGroup Value;
};
} // namespace pdb
} // namespace llvm
#endif
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