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/* Initialization code run first thing by the ELF startup code. Linux/x86-64.
Copyright (C) 2007-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifdef SHARED
# include <time.h>
# include <sysdep.h>
# include <dl-vdso.h>
# include <bits/libc-vdso.h>
long int (*__vdso_clock_gettime) (clockid_t, struct timespec *)
__attribute__ ((nocommon));
strong_alias (__vdso_clock_gettime, __GI___vdso_clock_gettime attribute_hidden)
long int (*__vdso_getcpu) (unsigned *, unsigned *, void *) attribute_hidden;
extern long int __syscall_clock_gettime (clockid_t, struct timespec *);
static inline void
_libc_vdso_platform_setup (void)
{
PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
void *p = _dl_vdso_vsym ("__vdso_clock_gettime", &linux26);
if (p == NULL)
p = __syscall_clock_gettime;
PTR_MANGLE (p);
__GI___vdso_clock_gettime = p;
p = _dl_vdso_vsym ("__vdso_getcpu", &linux26);
/* If the vDSO is not available we fall back on the old vsyscall. */
#define VSYSCALL_ADDR_vgetcpu 0xffffffffff600800
if (p == NULL)
p = (void *) VSYSCALL_ADDR_vgetcpu;
PTR_MANGLE (p);
__vdso_getcpu = p;
}
# define VDSO_SETUP _libc_vdso_platform_setup
#endif
#include <csu/init-first.c>
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