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c44c8db652
Summary: This patch implements copying some load commands that appear in executables/shared libraries such as the indirect symbol table. I don't add tests intentionally because this patch is incomplete: we need a layout algorithm for executables/shared libraries. I'll submit it as a separate patch with tests. Reviewers: alexshap, rupprecht, jhenderson, compnerd Reviewed By: alexshap Subscribers: abrachet, mgorny, mgrang, MaskRay, mtrent, jakehehrlich, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D63395 llvm-svn: 369298
66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
//===- MachOWriter.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 "../Buffer.h"
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#include "MachOLayoutBuilder.h"
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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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namespace llvm {
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class Error;
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namespace objcopy {
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namespace macho {
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class MachOWriter {
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Object &O;
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bool Is64Bit;
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bool IsLittleEndian;
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uint64_t PageSize;
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Buffer &B;
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MachOLayoutBuilder LayoutBuilder;
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size_t headerSize() const;
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size_t loadCommandsSize() const;
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size_t symTableSize() const;
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size_t strTableSize() const;
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void writeHeader();
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void writeLoadCommands();
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template <typename StructType>
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void writeSectionInLoadCommand(const Section &Sec, uint8_t *&Out);
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void writeSections();
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void writeSymbolTable();
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void writeStringTable();
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void writeRebaseInfo();
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void writeBindInfo();
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void writeWeakBindInfo();
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void writeLazyBindInfo();
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void writeExportInfo();
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void writeIndirectSymbolTable();
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void writeDataInCodeData();
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void writeFunctionStartsData();
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void writeTail();
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public:
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MachOWriter(Object &O, bool Is64Bit, bool IsLittleEndian, uint64_t PageSize,
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Buffer &B)
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: O(O), Is64Bit(Is64Bit), IsLittleEndian(IsLittleEndian),
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PageSize(PageSize), B(B), LayoutBuilder(O, Is64Bit, PageSize) {}
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size_t totalSize() const;
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Error finalize();
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Error write();
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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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