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llvm-mirror/tools/llvm-objcopy/MachO/MachOReader.h
Alexey Lapshin 5fe04015c0 [llvm-objcopy][NFC] refactor error handling. part 1.
Remove usages of special error reporting functions(error(),
reportError()). This patch is extracted from D87987.
Errors are reported as Expected<>/Error returning values.
This part is for MachO subfolder of llvm-objcopy.

Testing: check-all.

Reviewed By: jhenderson, alexshap

Differential Revision: https://reviews.llvm.org/D88113
2020-09-24 14:37:30 +03:00

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1.7 KiB
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//===- MachOReader.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
//
//===----------------------------------------------------------------------===//
#include "MachOObjcopy.h"
#include "Object.h"
#include "llvm/BinaryFormat/MachO.h"
#include "llvm/Object/MachO.h"
#include <memory>
namespace llvm {
namespace objcopy {
namespace macho {
// The hierarchy of readers is responsible for parsing different inputs:
// raw binaries and regular MachO object files.
class Reader {
public:
virtual ~Reader(){};
virtual Expected<std::unique_ptr<Object>> create() const = 0;
};
class MachOReader : public Reader {
const object::MachOObjectFile &MachOObj;
void readHeader(Object &O) const;
Error readLoadCommands(Object &O) const;
void readSymbolTable(Object &O) const;
void setSymbolInRelocationInfo(Object &O) const;
void readRebaseInfo(Object &O) const;
void readBindInfo(Object &O) const;
void readWeakBindInfo(Object &O) const;
void readLazyBindInfo(Object &O) const;
void readExportInfo(Object &O) const;
void readLinkData(Object &O, Optional<size_t> LCIndex, LinkData &LD) const;
void readCodeSignature(Object &O) const;
void readDataInCodeData(Object &O) const;
void readFunctionStartsData(Object &O) const;
void readIndirectSymbolTable(Object &O) const;
void readSwiftVersion(Object &O) const;
public:
explicit MachOReader(const object::MachOObjectFile &Obj) : MachOObj(Obj) {}
Expected<std::unique_ptr<Object>> create() const override;
};
} // end namespace macho
} // end namespace objcopy
} // end namespace llvm