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//===- MachOLayoutBuilder.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_OBJCOPY_MACHO_MACHOLAYOUTBUILDER_H
#define LLVM_OBJCOPY_MACHO_MACHOLAYOUTBUILDER_H
#include "MachOObjcopy.h"
#include "Object.h"
namespace llvm {
namespace objcopy {
namespace macho {
class MachOLayoutBuilder {
Object &O;
bool Is64Bit;
uint64_t PageSize;
// Points to the __LINKEDIT segment if it exists.
MachO::macho_load_command *LinkEditLoadCommand = nullptr;
StringTableBuilder StrTableBuilder;
uint32_t computeSizeOfCmds() const;
void constructStringTable();
void updateSymbolIndexes();
void updateDySymTab(MachO::macho_load_command &MLC);
uint64_t layoutSegments();
uint64_t layoutRelocations(uint64_t Offset);
Error layoutTail(uint64_t Offset);
static StringTableBuilder::Kind getStringTableBuilderKind(const Object &O,
bool Is64Bit);
public:
MachOLayoutBuilder(Object &O, bool Is64Bit, uint64_t PageSize)
: O(O), Is64Bit(Is64Bit), PageSize(PageSize),
StrTableBuilder(getStringTableBuilderKind(O, Is64Bit)) {}
// Recomputes and updates fields in the given object such as file offsets.
Error layout();
StringTableBuilder &getStringTableBuilder() { return StrTableBuilder; }
};
} // end namespace macho
} // end namespace objcopy
} // end namespace llvm
#endif // LLVM_OBJCOPY_MACHO_MACHOLAYOUTBUILDER_H
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