93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
// reloc-types.h -- ELF relocation templates for gold -*- C++ -*-
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// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
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// Written by Ian Lance Taylor <iant@google.com>.
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// This file is part of gold.
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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// MA 02110-1301, USA.
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// This header files defines a few convenient templated types for use
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// when handling ELF relocations.
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#ifndef GOLD_RELOC_TYPES_H
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#define GOLD_RELOC_TYPES_H
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#include "elfcpp.h"
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namespace gold
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{
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// Pick the ELF relocation accessor class and the size based on
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// SH_TYPE, which is either elfcpp::SHT_REL or elfcpp::SHT_RELA.
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template<int sh_type, int size, bool big_endian>
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struct Reloc_types;
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template<int size, bool big_endian>
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struct Reloc_types<elfcpp::SHT_REL, size, big_endian>
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{
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typedef typename elfcpp::Rel<size, big_endian> Reloc;
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typedef typename elfcpp::Rel_write<size, big_endian> Reloc_write;
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static const int reloc_size = elfcpp::Elf_sizes<size>::rel_size;
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static inline typename elfcpp::Elf_types<size>::Elf_Swxword
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get_reloc_addend(const Reloc*)
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{ gold_unreachable(); }
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static inline typename elfcpp::Elf_types<size>::Elf_Swxword
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get_reloc_addend_noerror(const Reloc*)
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{ return 0; }
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static inline void
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set_reloc_addend(Reloc_write*,
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typename elfcpp::Elf_types<size>::Elf_Swxword)
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{ gold_unreachable(); }
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static inline void
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copy_reloc_addend(Reloc_write*, const Reloc*)
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{ gold_unreachable(); }
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};
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template<int size, bool big_endian>
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struct Reloc_types<elfcpp::SHT_RELA, size, big_endian>
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{
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typedef typename elfcpp::Rela<size, big_endian> Reloc;
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typedef typename elfcpp::Rela_write<size, big_endian> Reloc_write;
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static const int reloc_size = elfcpp::Elf_sizes<size>::rela_size;
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static inline typename elfcpp::Elf_types<size>::Elf_Swxword
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get_reloc_addend(const Reloc* p)
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{ return p->get_r_addend(); }
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static inline typename elfcpp::Elf_types<size>::Elf_Swxword
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get_reloc_addend_noerror(const Reloc* p)
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{ return p->get_r_addend(); }
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static inline void
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set_reloc_addend(Reloc_write* p,
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typename elfcpp::Elf_types<size>::Elf_Swxword val)
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{ p->put_r_addend(val); }
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static inline void
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copy_reloc_addend(Reloc_write* to, const Reloc* from)
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{ to->put_r_addend(from->get_r_addend()); }
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};
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}; // End namespace gold.
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#endif // !defined(GOLD_RELOC_TYPE_SH)
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