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74414708 UD |
1 | /* Machine-dependent ELF indirect relocation inline functions. |
2 | x86-64 version. | |
b168057a | 3 | Copyright (C) 2009-2015 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_IRELA 1 | |
27 | ||
81b035fe | 28 | static inline ElfW(Addr) |
42675c6f | 29 | __attribute ((always_inline)) |
81b035fe | 30 | elf_ifunc_invoke (ElfW(Addr) addr) |
42675c6f | 31 | { |
81b035fe | 32 | return ((ElfW(Addr) (*) (void)) (addr)) (); |
42675c6f DM |
33 | } |
34 | ||
74414708 UD |
35 | static inline void |
36 | __attribute ((always_inline)) | |
81b035fe | 37 | elf_irela (const ElfW(Rela) *reloc) |
74414708 | 38 | { |
81b035fe L |
39 | ElfW(Addr) *const reloc_addr = (void *) reloc->r_offset; |
40 | const unsigned long int r_type = ELFW(R_TYPE) (reloc->r_info); | |
74414708 | 41 | |
a1ffb40e | 42 | if (__glibc_likely (r_type == R_X86_64_IRELATIVE)) |
74414708 | 43 | { |
81b035fe | 44 | ElfW(Addr) value = elf_ifunc_invoke(reloc->r_addend); |
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 */ |