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1 | /* Initialization code run first thing by the ELF startup code. Linux/i386. |
2 | Copyright (C) 2015 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #ifdef SHARED | |
20 | # include <time.h> | |
21 | # include <sysdep.h> | |
22 | # include <dl-vdso.h> | |
23 | # include <libc-vdso.h> | |
24 | ||
25 | long int (*__vdso_clock_gettime) (clockid_t, struct timespec *) | |
ea02c6b8 | 26 | attribute_hidden; |
ca677d3c AZ |
27 | |
28 | static long int | |
29 | clock_gettime_syscall (clockid_t id, struct timespec *tp) | |
30 | { | |
31 | INTERNAL_SYSCALL_DECL (err); | |
32 | return INTERNAL_SYSCALL (clock_gettime, err, 2, id, tp); | |
33 | } | |
34 | ||
35 | static inline void | |
36 | __vdso_platform_setup (void) | |
37 | { | |
38 | PREPARE_VERSION_KNOWN (linux26, LINUX_2_6); | |
39 | ||
40 | void *p = _dl_vdso_vsym ("__vdso_clock_gettime", &linux26); | |
41 | if (p == NULL) | |
42 | p = clock_gettime_syscall; | |
43 | PTR_MANGLE (p); | |
44 | __vdso_clock_gettime = p; | |
45 | } | |
46 | ||
47 | # define VDSO_SETUP __vdso_platform_setup | |
48 | #endif | |
49 | ||
50 | #include <csu/init-first.c> |