1 /* Copyright (C) 2007, 2011 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
22 # include <bits/libc-vdso.h>
24 long int (*__vdso_clock_gettime) (clockid_t, struct timespec *)
25 __attribute__ ((nocommon));
26 strong_alias (__vdso_clock_gettime, __GI___vdso_clock_gettime attribute_hidden)
28 long int (*__vdso_getcpu) (unsigned *, unsigned *, void *) attribute_hidden;
31 extern long int __syscall_clock_gettime (clockid_t, struct timespec *);
35 _libc_vdso_platform_setup (void)
37 PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
39 void *p = _dl_vdso_vsym ("__vdso_clock_gettime", &linux26);
41 p = __syscall_clock_gettime;
43 __GI___vdso_clock_gettime = p;
45 p = _dl_vdso_vsym ("__vdso_getcpu", &linux26);
46 /* If the vDSO is not available we fall back on the old vsyscall. */
47 #define VSYSCALL_ADDR_vgetcpu 0xffffffffff600800
49 p = (void *) VSYSCALL_ADDR_vgetcpu;
54 # define VDSO_SETUP _libc_vdso_platform_setup
57 #include "../init-first.c"