SymbolVersionDefinition.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_ELF_SYMBOL_VERSION_DEFINITION_H
#define LIEF_ELF_SYMBOL_VERSION_DEFINITION_H
#include <cstdint>
#include <ostream>
#include <memory>
 
#include "LIEF/Object.hpp"
#include "LIEF/visibility.h"
#include "LIEF/iterators.hpp"
 
namespace LIEF {
namespace ELF {
 
class SymbolVersionAux;
class Parser;
 
namespace details {
struct Elf64_Verdef;
struct Elf32_Verdef;
}

class LIEF_API SymbolVersionDefinition : public Object {
  friend class Parser;
  public:
  using version_aux_t        = std::vector<std::unique_ptr<SymbolVersionAux>>;
  using it_version_aux       = ref_iterator<version_aux_t&, SymbolVersionAux*>;
  using it_const_version_aux = const_ref_iterator<const version_aux_t&, const SymbolVersionAux*>;
 
  SymbolVersionDefinition() = default;
  SymbolVersionDefinition(const details::Elf64_Verdef& header);
  SymbolVersionDefinition(const details::Elf32_Verdef& header);
  ~SymbolVersionDefinition() override;
 
  SymbolVersionDefinition& operator=(SymbolVersionDefinition other);
  SymbolVersionDefinition(const SymbolVersionDefinition& other);
  void swap(SymbolVersionDefinition& other);

  uint16_t version() const {
    return version_;
  }

  uint16_t flags() const {
    return flags_;
  }

  uint16_t ndx() const {
    return ndx_;
  }

  uint32_t hash() const {
    return hash_;
  }

  it_version_aux symbols_aux() {
    return symbol_version_aux_;
  }
 
  it_const_version_aux symbols_aux() const {
    return symbol_version_aux_;
  }
 
  void version(uint16_t version) {
    version_ = version;
  }
 
  void flags(uint16_t flags) {
    flags_ = flags;
  }
 
  void hash(uint32_t hash) {
    hash_ = hash;
  }
 
  void accept(Visitor& visitor) const override;
 
  LIEF_API friend std::ostream& operator<<(std::ostream& os, const SymbolVersionDefinition& sym);
 
  private:
  uint16_t version_ = 1;
  uint16_t flags_ = 0;
  uint16_t ndx_  = 0;
  uint32_t hash_ = 0;
  version_aux_t symbol_version_aux_;
};
}
}
#endif