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/*
Copyright (C) 2012 - 2015 Evan Teran
evan.teran@gmail.com
Copyright (C) 1995-2003,2004,2005,2006,2007,2008,2009,2010,2011
Free Software Foundation, Inc.
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 2 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef ELF_RELA_H_20121007_
#define ELF_RELA_H_20121007_
#include "elf_types.h"
/* Relocation table entry with addend (in section of type SHT_RELA). */
struct elf32_rela {
elf32_addr r_offset; /* Address */
elf32_word r_info; /* Relocation type and symbol index */
elf32_sword r_addend; /* Addend */
};
struct elf64_rela {
elf64_addr r_offset; /* Address */
elf64_xword r_info; /* Relocation type and symbol index */
elf64_sxword r_addend; /* Addend */
};
/* How to extract and insert information held in the r_info field. */
template <class T>
constexpr T ELF32_R_SYM(T val) {
return val >> 8;
}
template <class T>
constexpr T ELF32_R_TYPE(T val) {
return val & 0xff;
}
template <class T1, class T2>
constexpr auto ELF32_R_INFO(T1 sym, T2 type) {
return (sym << 8) + (type & 0xff);
}
template <class T>
constexpr T ELF64_R_SYM(T i) {
return i >> 32;
}
template <class T>
constexpr T ELF64_R_TYPE(T i) {
return i & 0xffffffff;
}
template <class T1, class T2>
constexpr auto ELF64_R_INFO(T1 sym, T2 type) {
return (static_cast<elf64_xword>(sym) << 32) + type;
}
#endif
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