1 // reloc-types.h -- ELF relocation templates for gold -*- C++ -*-
3 // Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
4 // Written by Ian Lance Taylor <iant@google.com>.
6 // This file is part of gold.
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 3 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 // MA 02110-1301, USA.
23 // This header files defines a few convenient templated types for use
24 // when handling ELF relocations.
26 #ifndef GOLD_RELOC_TYPES_H
27 #define GOLD_RELOC_TYPES_H
34 // Pick the ELF relocation accessor class and the size based on
35 // SH_TYPE, which is either elfcpp::SHT_REL or elfcpp::SHT_RELA.
37 template<int sh_type
, int size
, bool big_endian
>
40 template<int size
, bool big_endian
>
41 struct Reloc_types
<elfcpp::SHT_REL
, size
, big_endian
>
43 typedef typename
elfcpp::Rel
<size
, big_endian
> Reloc
;
44 typedef typename
elfcpp::Rel_write
<size
, big_endian
> Reloc_write
;
45 static const int reloc_size
= elfcpp::Elf_sizes
<size
>::rel_size
;
47 static inline typename
elfcpp::Elf_types
<size
>::Elf_Swxword
48 get_reloc_addend(const Reloc
*)
49 { gold_unreachable(); }
51 static inline typename
elfcpp::Elf_types
<size
>::Elf_Swxword
52 get_reloc_addend_noerror(const Reloc
*)
56 set_reloc_addend(Reloc_write
*,
57 typename
elfcpp::Elf_types
<size
>::Elf_Swxword
)
58 { gold_unreachable(); }
61 copy_reloc_addend(Reloc_write
*, const Reloc
*)
62 { gold_unreachable(); }
65 template<int size
, bool big_endian
>
66 struct Reloc_types
<elfcpp::SHT_RELA
, size
, big_endian
>
68 typedef typename
elfcpp::Rela
<size
, big_endian
> Reloc
;
69 typedef typename
elfcpp::Rela_write
<size
, big_endian
> Reloc_write
;
70 static const int reloc_size
= elfcpp::Elf_sizes
<size
>::rela_size
;
72 static inline typename
elfcpp::Elf_types
<size
>::Elf_Swxword
73 get_reloc_addend(const Reloc
* p
)
74 { return p
->get_r_addend(); }
76 static inline typename
elfcpp::Elf_types
<size
>::Elf_Swxword
77 get_reloc_addend_noerror(const Reloc
* p
)
78 { return p
->get_r_addend(); }
81 set_reloc_addend(Reloc_write
* p
,
82 typename
elfcpp::Elf_types
<size
>::Elf_Swxword val
)
83 { p
->put_r_addend(val
); }
86 copy_reloc_addend(Reloc_write
* to
, const Reloc
* from
)
87 { to
->put_r_addend(from
->get_r_addend()); }
90 }; // End namespace gold.
92 #endif // !defined(GOLD_RELOC_TYPE_SH)
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