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74414708 UD |
1 | /* Machine-dependent ELF indirect relocation inline functions. |
2 | i386 version. | |
688903eb | 3 | Copyright (C) 2009-2018 Free Software Foundation, Inc. |
74414708 UD |
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 | |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
74414708 UD |
19 | |
20 | #ifndef _DL_IREL_H | |
21 | #define _DL_IREL_H | |
22 | ||
b7629ee3 | 23 | #include <stdio.h> |
74414708 UD |
24 | #include <unistd.h> |
25 | ||
26 | #define ELF_MACHINE_IREL 1 | |
27 | ||
42675c6f DM |
28 | static inline Elf32_Addr |
29 | __attribute ((always_inline)) | |
30 | elf_ifunc_invoke (Elf32_Addr addr) | |
31 | { | |
32 | return ((Elf32_Addr (*) (void)) (addr)) (); | |
33 | } | |
34 | ||
74414708 UD |
35 | static inline void |
36 | __attribute ((always_inline)) | |
37 | elf_irel (const Elf32_Rel *reloc) | |
38 | { | |
39 | Elf32_Addr *const reloc_addr = (void *) reloc->r_offset; | |
40 | const unsigned long int r_type = ELF32_R_TYPE (reloc->r_info); | |
41 | ||
a1ffb40e | 42 | if (__glibc_likely (r_type == R_386_IRELATIVE)) |
74414708 | 43 | { |
42675c6f | 44 | Elf32_Addr value = elf_ifunc_invoke(*reloc_addr); |
74414708 UD |
45 | *reloc_addr = value; |
46 | } | |
47 | else | |
b7629ee3 | 48 | __libc_fatal ("unexpected reloc type in static binary"); |
74414708 UD |
49 | } |
50 | ||
51 | #endif /* dl-irel.h */ |