ThreadCommand.hpp

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/* Copyright 2017 - 2026 R. Thomas
 * Copyright 2017 - 2026 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_THREAD_COMMAND_H
#define LIEF_MACHO_THREAD_COMMAND_H
#include <memory>
#include <ostream>
#include <vector>
 
#include "LIEF/compiler_attributes.hpp"
#include "LIEF/span.hpp"
#include "LIEF/visibility.h"
 
#include "LIEF/MachO/Header.hpp"
#include "LIEF/MachO/LoadCommand.hpp"
 
 
namespace LIEF::MachO {
 
class BinaryParser;
 
namespace details {
struct thread_command;
}

class LIEF_API ThreadCommand : public LoadCommand {
  friend class BinaryParser;
 
  public:
  ThreadCommand() = default;
  ThreadCommand(const details::thread_command& cmd,
                Header::CPU_TYPE arch = Header::CPU_TYPE::ANY);
  ThreadCommand(uint32_t flavor, uint32_t count,
                Header::CPU_TYPE arch = Header::CPU_TYPE::ANY);
 
  ThreadCommand& operator=(const ThreadCommand& copy) = default;
  ThreadCommand(const ThreadCommand& copy) = default;
 
  std::unique_ptr<LoadCommand> clone() const override {
    return std::make_unique<ThreadCommand>(*this);
  }
 
  ~ThreadCommand() override = default;

  uint32_t flavor() const {
    return flavor_;
  }

  uint32_t count() const {
    return count_;
  }

  Header::CPU_TYPE architecture() const {
    return architecture_;
  }

  span<const uint8_t> state() const LIEF_LIFETIMEBOUND {
    return state_;
  }
 
  span<uint8_t> state() LIEF_LIFETIMEBOUND {
    return state_;
  }

  uint64_t pc() const;
 
  void state(std::vector<uint8_t> state) {
    state_ = std::move(state);
  }
 
  void flavor(uint32_t flavor) {
    flavor_ = flavor;
  }
  void count(uint32_t count) {
    count_ = count;
  }
  void architecture(Header::CPU_TYPE arch) {
    architecture_ = arch;
  }
 
  void accept(Visitor& visitor) const override;
 
  std::ostream& print(std::ostream& os) const override;
 
  static bool classof(const LoadCommand* cmd) {
    const LoadCommand::TYPE type = cmd->command();
    return type == LoadCommand::TYPE::THREAD ||
           type == LoadCommand::TYPE::UNIXTHREAD;
  }
 
  private:
  uint32_t flavor_ = 0;
  uint32_t count_ = 0;
  Header::CPU_TYPE architecture_ = Header::CPU_TYPE::ANY;
  std::vector<uint8_t> state_;
};
 
}
 
#endif