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📄 Config.h(1.82 KB)
📄 Driver.cpp(13.5 KB)
📄 Driver.h(984 B)
📄 ExportTrie.cpp(8.59 KB)
📄 ExportTrie.h(1.23 KB)
📄 InputFiles.cpp(16.85 KB)
📄 InputFiles.h(3.69 KB)
📄 InputSection.cpp(1.34 KB)
📄 InputSection.h(1.81 KB)
📄 MachOStructs.h(1 KB)
📄 MergedOutputSection.cpp(2.37 KB)
📄 MergedOutputSection.h(1.68 KB)
📄 Options.td(53.33 KB)
📄 OutputSection.cpp(596 B)
📄 OutputSection.h(2.23 KB)
📄 OutputSegment.cpp(1.86 KB)
📄 OutputSegment.h(1.64 KB)
📄 SymbolTable.cpp(2.35 KB)
📄 SymbolTable.h(1.29 KB)
📄 Symbols.cpp(756 B)
📄 Symbols.h(3.44 KB)
📄 SyntheticSections.cpp(13.87 KB)
📄 SyntheticSections.h(9.23 KB)
📄 Target.cpp(478 B)
📄 Target.h(2.27 KB)
📄 Writer.cpp(16.29 KB)
📄 Writer.h(738 B)

Editing: Target.h

//===- Target.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 LLD_MACHO_TARGET_H
#define LLD_MACHO_TARGET_H

#include "llvm/BinaryFormat/MachO.h"
#include "llvm/Support/MemoryBuffer.h"

#include <cstddef>
#include <cstdint>

namespace lld {
namespace macho {

class Symbol;
class DylibSymbol;
class InputSection;
struct Reloc;

enum : uint64_t {
  // We are currently only supporting 64-bit targets since macOS and iOS are
  // deprecating 32-bit apps.
  WordSize = 8,
  PageSize = 4096,
  PageZeroSize = 1ull << 32, // XXX should be 4096 for 32-bit targets
  MaxAlignmentPowerOf2 = 32,
};

class TargetInfo {
public:
  virtual ~TargetInfo() = default;

// Validate the relocation structure and get its addend.
  virtual uint64_t
  getImplicitAddend(llvm::MemoryBufferRef, const llvm::MachO::section_64 &,
                    const llvm::MachO::relocation_info &) const = 0;
  virtual void relocateOne(uint8_t *loc, const Reloc &, uint64_t val) const = 0;

// Write code for lazy binding. See the comments on StubsSection for more
  // details.
  virtual void writeStub(uint8_t *buf, const DylibSymbol &) const = 0;
  virtual void writeStubHelperHeader(uint8_t *buf) const = 0;
  virtual void writeStubHelperEntry(uint8_t *buf, const DylibSymbol &,
                                    uint64_t entryAddr) const = 0;

// Symbols may be referenced via either the GOT or the stubs section,
  // depending on the relocation type. prepareSymbolRelocation() will set up the
  // GOT/stubs entries, and getSymbolVA() will return the addresses of those
  // entries.
  virtual void prepareSymbolRelocation(Symbol &, const InputSection *,
                                       const Reloc &) = 0;
  virtual uint64_t getSymbolVA(const Symbol &, uint8_t type) const = 0;

uint32_t cpuType;
  uint32_t cpuSubtype;

size_t stubSize;
  size_t stubHelperHeaderSize;
  size_t stubHelperEntrySize;
};

TargetInfo *createX86_64TargetInfo();

extern TargetInfo *target;

} // namespace macho
} // namespace lld

#endif

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