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// reloc-types.h -- ELF relocation templates for gold -*- C++ -*-
// Copyright (C) 2006-2015 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
// MA 02110-1301, USA.
// This header files defines a few convenient templated types for use
// when handling ELF relocations.
#ifndef GOLD_RELOC_TYPES_H
#define GOLD_RELOC_TYPES_H
#include "elfcpp.h"
namespace gold
{
// Pick the ELF relocation accessor class and the size based on
// SH_TYPE, which is either elfcpp::SHT_REL or elfcpp::SHT_RELA.
template<int sh_type, int size, bool big_endian>
struct Reloc_types;
template<int size, bool big_endian>
struct Reloc_types<elfcpp::SHT_REL, size, big_endian>
{
typedef typename elfcpp::Rel<size, big_endian> Reloc;
typedef typename elfcpp::Rel_write<size, big_endian> Reloc_write;
static const int reloc_size = elfcpp::Elf_sizes<size>::rel_size;
static inline typename elfcpp::Elf_types<size>::Elf_Swxword
get_reloc_addend(const Reloc*)
{ gold_unreachable(); }
static inline typename elfcpp::Elf_types<size>::Elf_Swxword
get_reloc_addend_noerror(const Reloc*)
{ return 0; }
static inline void
set_reloc_addend(Reloc_write*,
typename elfcpp::Elf_types<size>::Elf_Swxword)
{ gold_unreachable(); }
static inline void
copy_reloc_addend(Reloc_write*, const Reloc*)
{ gold_unreachable(); }
};
template<int size, bool big_endian>
struct Reloc_types<elfcpp::SHT_RELA, size, big_endian>
{
typedef typename elfcpp::Rela<size, big_endian> Reloc;
typedef typename elfcpp::Rela_write<size, big_endian> Reloc_write;
static const int reloc_size = elfcpp::Elf_sizes<size>::rela_size;
static inline typename elfcpp::Elf_types<size>::Elf_Swxword
get_reloc_addend(const Reloc* p)
{ return p->get_r_addend(); }
static inline typename elfcpp::Elf_types<size>::Elf_Swxword
get_reloc_addend_noerror(const Reloc* p)
{ return p->get_r_addend(); }
static inline void
set_reloc_addend(Reloc_write* p,
typename elfcpp::Elf_types<size>::Elf_Swxword val)
{ p->put_r_addend(val); }
static inline void
copy_reloc_addend(Reloc_write* to, const Reloc* from)
{ to->put_r_addend(from->get_r_addend()); }
};
}; // End namespace gold.
#endif // !defined(GOLD_RELOC_TYPE_SH)
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