// reloc-types.h -- ELF relocation templates for gold -*- C++ -*- // Copyright 2006, 2007, 2008 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)