NoteGnuProperty.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_ELF_NOTE_GNU_PROPERTY_H
#define LIEF_ELF_NOTE_GNU_PROPERTY_H
 
#include <vector>
#include <ostream>
#include <memory>
 
#include "LIEF/visibility.h"
#include "LIEF/ELF/Note.hpp"
 
namespace LIEF {
namespace ELF {

class LIEF_API NoteGnuProperty : public Note {
  public:
  class LIEF_API Property {
    public:
    Property() = delete;

    enum class TYPE {
      UNKNOWN = 0,

      GENERIC,

      AARCH64_FEATURES,

      AARCH64_PAUTH,

      STACK_SIZE,

      NO_COPY_ON_PROTECTED,

      X86_ISA,

      X86_FEATURE,
 
      NEEDED,
    };

    TYPE type() const {
      return type_;
    }
 
    virtual void dump(std::ostream& os) const;
 
    virtual ~Property() = default;
 
    LIEF_API friend std::ostream& operator<<(std::ostream& os,
                                             const Property& prop) {
      prop.dump(os);
      return os;
    }
 
    protected:
    Property(TYPE type) :
      type_(type) {}
    TYPE type_ = TYPE::UNKNOWN;
  };
 
  using properties_t = std::vector<std::unique_ptr<NoteGnuProperty::Property>>;
 
  NoteGnuProperty(ARCH arch, Header::CLASS cls, std::string name, uint32_t type,
                  description_t description, std::string secname) :
    Note(std::move(name), TYPE::GNU_PROPERTY_TYPE_0, type, std::move(description),
         std::move(secname)),
    arch_(arch),
    class_(cls) {}
 
  std::unique_ptr<Note> clone() const override {
    return std::unique_ptr<Note>(new NoteGnuProperty(*this));
  }

  std::unique_ptr<NoteGnuProperty::Property> find(Property::TYPE type) const;

  properties_t properties() const;
 
  void dump(std::ostream& os) const override;
 
  void accept(Visitor& visitor) const override;
 
  static bool classof(const Note* note) {
    return note->type() == Note::TYPE::GNU_PROPERTY_TYPE_0;
  }
 
  ~NoteGnuProperty() override = default;
 
  LIEF_API friend std::ostream& operator<<(std::ostream& os,
                                           const NoteGnuProperty& note) {
    note.dump(os);
    return os;
  }
 
  protected:
  ARCH arch_ = ARCH::NONE;
  Header::CLASS class_ = Header::CLASS::NONE;
};
 
LIEF_API const char* to_string(NoteGnuProperty::Property::TYPE type);
 
} // namespace ELF
} // namespace LIEF
 
#endif