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1 | /* Machine-dependent ELF indirect relocation inline functions. |
2 | ARM version. | |
b168057a | 3 | Copyright (C) 2009-2015 Free Software Foundation, Inc. |
70063199 RS |
4 | This file is part of the GNU C Library. |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
ab84e3ff PE |
17 | License along with the GNU C Library. If not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
70063199 RS |
19 | |
20 | #ifndef _DL_IREL_H | |
21 | #define _DL_IREL_H | |
22 | ||
23 | #include <stdio.h> | |
24 | #include <unistd.h> | |
7f3e1ad0 | 25 | #include <ldsodefs.h> |
70063199 RS |
26 | |
27 | #define ELF_MACHINE_IREL 1 | |
28 | ||
5411b563 JM |
29 | static inline Elf32_Addr |
30 | __attribute ((always_inline)) | |
31 | elf_ifunc_invoke (Elf32_Addr addr) | |
32 | { | |
73da6bac | 33 | return ((Elf32_Addr (*) (unsigned long int)) (addr)) (GLRO(dl_hwcap)); |
5411b563 JM |
34 | } |
35 | ||
70063199 RS |
36 | static inline void |
37 | __attribute ((always_inline)) | |
38 | elf_irel (const Elf32_Rel *reloc) | |
39 | { | |
40 | Elf32_Addr *const reloc_addr = (void *) reloc->r_offset; | |
41 | const unsigned long int r_type = ELF32_R_TYPE (reloc->r_info); | |
42 | ||
43 | if (__builtin_expect (r_type == R_ARM_IRELATIVE, 1)) | |
44 | { | |
5411b563 | 45 | Elf32_Addr value = elf_ifunc_invoke (*reloc_addr); |
70063199 RS |
46 | *reloc_addr = value; |
47 | } | |
48 | else | |
49 | __libc_fatal ("unexpected reloc type in static binary"); | |
50 | } | |
51 | ||
52 | #endif /* dl-irel.h */ |