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/* Copyright 2017 R. Thomas
* Copyright 2017 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 <string>
#include <iostream>
#include <vector>
#include <memory>
#include <functional>
#include "LIEF/Object.hpp"
#include "LIEF/visibility.h"
#include "LIEF/ELF/type_traits.hpp"
#include "LIEF/ELF/Structures.hpp"
#include "LIEF/ELF/SymbolVersionAux.hpp"
namespace LIEF {
namespace ELF {
class Parser;
//! @brief Class which modelization of an entry defined in ``DT_VERDEF``
//! (or ``.gnu.version_d``)
class LIEF_API SymbolVersionDefinition : public Object {
friend class Parser;
public:
SymbolVersionDefinition(void);
SymbolVersionDefinition(const Elf64_Verdef *header);
SymbolVersionDefinition(const Elf32_Verdef *header);
virtual ~SymbolVersionDefinition(void);
SymbolVersionDefinition& operator=(SymbolVersionDefinition other);
SymbolVersionDefinition(const SymbolVersionDefinition& other);
void swap(SymbolVersionDefinition& other);
//! @brief Version revision
//!
//! This field should always have the value ``1``. It will be changed
//! if the versioning implementation has to be changed in an incompatible way.
uint16_t version(void) const;
//! @brief Version information
uint16_t flags(void) const;
//! @brief Version index
//!
//! Numeric value used as an index in the LIEF::ELF::SymbolVersion table
uint16_t ndx(void) const;
//! @brief Hash value of the symbol's name (using ELF hash function)
uint32_t hash(void) const;
//! @brief SymbolVersionAux entries
it_symbols_version_aux symbols_aux(void);
it_const_symbols_version_aux symbols_aux(void) const;
void version(uint16_t version);
void flags(uint16_t flags);
void hash(uint32_t hash);
virtual void accept(Visitor& visitor) const override;
bool operator==(const SymbolVersionDefinition& rhs) const;
bool operator!=(const SymbolVersionDefinition& rhs) const;
LIEF_API friend std::ostream& operator<<(std::ostream& os, const SymbolVersionDefinition& sym);
private:
uint16_t version_;
uint16_t flags_;
uint16_t ndx_;
uint32_t hash_;
symbols_version_aux_t symbol_version_aux_;
};
}
}
#endif
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