DynamicFixup.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_PE_LOAD_CONFIGURATION_DYNAMIC_FIXUP_H
#define LIEF_PE_LOAD_CONFIGURATION_DYNAMIC_FIXUP_H
 
#include <ostream>
#include <memory>
#include <string>
 
#include "LIEF/visibility.h"
#include "LIEF/errors.hpp"
 
namespace LIEF {
class SpanStream;
 
namespace PE {
class Parser;
class DynamicRelocation;
class LIEF_API DynamicFixup {
  public:
  enum KIND {    UNKNOWN = 0,
    GENERIC,
    ARM64X,
    FUNCTION_OVERRIDE,
    ARM64_KERNEL_IMPORT_CALL_TRANSFER,
    GUARD_IMPORT_CONTROL_TRANSFER,
  };
 
  DynamicFixup() = delete;
  DynamicFixup(KIND kind) :
    kind_(kind)
  {}
 
  DynamicFixup(const DynamicFixup&) = default;
  DynamicFixup& operator=(const DynamicFixup&) = default;
 
  DynamicFixup(DynamicFixup&&) = default;
  DynamicFixup& operator=(DynamicFixup&&) = default;
 
  virtual std::unique_ptr<DynamicFixup> clone() const = 0;
 
  virtual std::string to_string() const = 0;
  KIND kind() const {
    return kind_;
  }

template<class T>

T* as() {

static_assert(std::is_base_of<DynamicFixup, T>::value,

"Require DynamicFixup inheritance");

if (T::classof(this)) {

return static_cast<T*>(this);

}

return nullptr;

}

template<class T>

const T* as() const {

return const_cast<DynamicFixup*>(this)->as<T>();

}

LIEF_API friend

std::ostream& operator<<(std::ostream& os, const DynamicFixup& fixup)

{

os << fixup.to_string();

return os;

}

virtual ~DynamicFixup() = default;

static LIEF_LOCAL ok_error_t

parse(Parser& ctx, SpanStream& stream, DynamicRelocation& R);

protected:

KIND kind_ = KIND::UNKNOWN;

};