LinkEdit.hpp

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/* Copyright 2017 - 2025 R. Thomas
 * Copyright 2017 - 2025 Quarkslab
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef LIEF_MACHO_LINK_EDIT_H
#define LIEF_MACHO_LINK_EDIT_H
#include <memory>
 
#include "LIEF/visibility.h"
 
#include "LIEF/MachO/SegmentCommand.hpp"
 
namespace LIEF {
namespace MachO {
 
class AtomInfo;
class Binary;
class BinaryParser;
class Builder;
class CodeSignatureDir;
class DataInCode;
class DyldChainedFixups;
class DyldExportsTrie;
class DyldInfo;
class FunctionStarts;
class FunctionVariants;
class FunctionVariantFixups;
class LinkerOptHint;
class SymbolCommand;
class TwoLevelHints;
class SegmentSplitInfo;
class CodeSignature;
 
class LIEF_API LinkEdit : public SegmentCommand {
 
  friend class BinaryParser;
  friend class Binary;
  friend class Builder;
 
  public:
  using SegmentCommand::SegmentCommand;
 
  LinkEdit& operator=(LinkEdit other);
  LinkEdit(const LinkEdit& copy) = default;
 
  void swap(LinkEdit& other) noexcept;
 
  std::unique_ptr<LoadCommand> clone() const override {
    return std::unique_ptr<LinkEdit>(new LinkEdit(*this));
  }
 
  ~LinkEdit() override = default;
 
  static bool classof(const LoadCommand* cmd) {
    return SegmentCommand::classof(cmd);
  }
 
  static bool segmentof(const SegmentCommand& segment) {
    return segment.name() == "__LINKEDIT";
  }
 
  private:
  LIEF_LOCAL void update_data(const update_fnc_t& f) override;
  LIEF_LOCAL void update_data(const update_fnc_ws_t& f,
                              size_t where, size_t size) override;
 
  //x-ref to keep the spans in a consistent state
  DyldInfo* dyld_ = nullptr;
  DyldChainedFixups* chained_fixups_ = nullptr;
  DyldExportsTrie* exports_trie_ = nullptr;
  SegmentSplitInfo* seg_split_ = nullptr;
  FunctionStarts* fstarts_ = nullptr;
  DataInCode* data_code_ = nullptr;
  CodeSignatureDir* code_sig_dir_ = nullptr;
  LinkerOptHint* linker_opt_ = nullptr;
  SymbolCommand* symtab_ = nullptr;
  TwoLevelHints* two_lvl_hint_ = nullptr;
  CodeSignature* code_sig_ = nullptr;
  AtomInfo* atom_info_ = nullptr;
  FunctionVariants*  func_variants_ = nullptr;
  FunctionVariantFixups* func_variant_fixups_ = nullptr;
};
 
}
}
#endif