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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_RELOCATION_H_
#define LIEF_ELF_RELOCATION_H_
#include <string>
#include <map>
#include <iostream>
#include "LIEF/Object.hpp"
#include "LIEF/visibility.h"
#include "LIEF/Abstract/Relocation.hpp"
#include "LIEF/ELF/Structures.hpp"
#include "LIEF/ELF/Symbol.hpp"
namespace LIEF {
namespace ELF {
class Parser;
class Binary;
class Builder;
class LIEF_API Relocation : public LIEF::Relocation {
friend class Parser;
friend class Binary;
friend class Builder;
public:
Relocation(const Elf32_Rel* header);
Relocation(const Elf32_Rela* header);
Relocation(const Elf64_Rel* header);
Relocation(const Elf64_Rela* header);
Relocation(uint64_t address, uint32_t type = 0, int64_t addend = 0, bool isRela = false);
template<class T, typename = typename std::enable_if<std::is_enum<T>::value>::type>
Relocation(uint64_t address, T type, int64_t addend = 0, bool isRela = false) :
Relocation{address, static_cast<uint32_t>(type), addend, isRela}
{}
Relocation(void);
virtual ~Relocation(void);
Relocation& operator=(Relocation other);
Relocation(const Relocation& other);
void swap(Relocation& other);
//uint64_t address(void) const;
int64_t addend(void) const;
uint32_t type(void) const;
bool is_rela(void) const;
bool is_rel(void) const;
uint32_t info(void) const;
ARCH architecture(void) const;
RELOCATION_PURPOSES purpose(void) const;
//! @brief Return the **bit** size of the value to patch
//!
//! Return -1 if it fails
virtual size_t size(void) const override;
bool has_symbol(void) const;
Symbol& symbol(void);
const Symbol& symbol(void) const;
//! True if the relocation has a section associated
bool has_section(void) const;
//! Section associated with this relocation
Section& section(void);
const Section& section(void) const;
//void address(uint64_t address);
void addend(int64_t addend);
void type(uint32_t type);
void purpose(RELOCATION_PURPOSES purpose);
void info(uint32_t v);
virtual void accept(Visitor& visitor) const override;
bool operator==(const Relocation& rhs) const;
bool operator!=(const Relocation& rhs) const;
LIEF_API friend std::ostream& operator<<(std::ostream& os, const Relocation& entry);
private:
uint32_t type_;
int64_t addend_;
bool isRela_;
Symbol* symbol_{nullptr};
ARCH architecture_;
RELOCATION_PURPOSES purpose_;
Section* section_{nullptr};
uint32_t info_;
};
}
}
#endif /* _ELF_RELOCATION_H_ */
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