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/* gettimeofday - get the time. Linux/x86 version.
Copyright (C) 2015-2017 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/>. */
#include <sys/time.h>
#ifdef SHARED
# include <dl-vdso.h>
# include <errno.h>
static int
__gettimeofday_syscall (struct timeval *tv, struct timezone *tz)
{
return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
}
# ifndef __gettimeofday_type
/* The i386 gettimeofday.c includes this file with a defined
__gettimeofday_type macro. For x86_64 we have to define it to __gettimeofday
as the internal symbol is the ifunc'ed one. */
# define __gettimeofday_type __gettimeofday
# endif
# undef INIT_ARCH
# define INIT_ARCH() PREPARE_VERSION_KNOWN (linux26, LINUX_2_6)
/* If the vDSO is not available we fall back to syscall. */
libc_ifunc_hidden (__gettimeofday_type, __gettimeofday,
(_dl_vdso_vsym ("__vdso_gettimeofday", &linux26)
?: &__gettimeofday_syscall))
libc_hidden_def (__gettimeofday)
#else
# include <sysdep.h>
# include <errno.h>
int
__gettimeofday (struct timeval *tv, struct timezone *tz)
{
return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
}
libc_hidden_def (__gettimeofday)
#endif
weak_alias (__gettimeofday, gettimeofday)
libc_hidden_weak (gettimeofday)
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