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37f389b2f8
The load command is currently specific to arm64 and holds information for instruction rewriting, e.g. converting a GOT load to an ADR to compute a local address. (On ELF the information is usually conveyed by relocations, e.g. R_X86_64_REX_GOTPCRELX, R_PPC64_TOC16_HA) Reviewed By: alexander-shaposhnikov Differential Revision: https://reviews.llvm.org/D104968
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
//===- MachOReader.h --------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "MachOObjcopy.h"
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#include "Object.h"
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#include "llvm/BinaryFormat/MachO.h"
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#include "llvm/Object/MachO.h"
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#include <memory>
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namespace llvm {
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namespace objcopy {
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namespace macho {
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// The hierarchy of readers is responsible for parsing different inputs:
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// raw binaries and regular MachO object files.
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class Reader {
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public:
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virtual ~Reader(){};
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virtual Expected<std::unique_ptr<Object>> create() const = 0;
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};
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class MachOReader : public Reader {
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const object::MachOObjectFile &MachOObj;
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void readHeader(Object &O) const;
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Error readLoadCommands(Object &O) const;
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void readSymbolTable(Object &O) const;
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void setSymbolInRelocationInfo(Object &O) const;
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void readRebaseInfo(Object &O) const;
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void readBindInfo(Object &O) const;
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void readWeakBindInfo(Object &O) const;
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void readLazyBindInfo(Object &O) const;
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void readExportInfo(Object &O) const;
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void readLinkData(Object &O, Optional<size_t> LCIndex, LinkData &LD) const;
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void readCodeSignature(Object &O) const;
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void readDataInCodeData(Object &O) const;
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void readLinkerOptimizationHint(Object &O) const;
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void readFunctionStartsData(Object &O) const;
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void readIndirectSymbolTable(Object &O) const;
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void readSwiftVersion(Object &O) const;
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public:
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explicit MachOReader(const object::MachOObjectFile &Obj) : MachOObj(Obj) {}
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Expected<std::unique_ptr<Object>> create() const override;
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};
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} // end namespace macho
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} // end namespace objcopy
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} // end namespace llvm
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