/* Copyright (C) 2018 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/>.  */

/* Get the current time of day and timezone information,

   putting it into *tv and *tz.  If tz is null, *tz is not filled.

   Returns 0 on success, -1 on errors.  */

#ifdef SHARED

# define __gettimeofday __redirect___gettimeofday

# include <sys/time.h>

# undef __gettimeofday

# define HAVE_VSYSCALL

# include <dl-vdso.h>

# include <sysdep-vdso.h>

/* Used as a fallback in the ifunc resolver if VDSO is not available

   and for libc.so internal __gettimeofday calls.  */

static int

__gettimeofday_vsyscall (struct timeval *tv, struct timezone *tz)

{

  return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);

}

/* PREPARE_VERSION will need an __LP64__ ifdef when ILP32 support

   goes in.  See _libc_vdso_platform_setup in

   sysdeps/unix/sysv/linux/aarch64/init-first.c.  */

# undef INIT_ARCH

# define INIT_ARCH() \

	   PREPARE_VERSION (linux_version, "LINUX_2.6.39", 123718537); \

	   void *vdso_gettimeofday = \

	     _dl_vdso_vsym ("__kernel_gettimeofday", &linux_version);

libc_ifunc_hidden (__redirect___gettimeofday, __gettimeofday,

		   vdso_gettimeofday ?: (void *) __gettimeofday_vsyscall)

__hidden_ver1 (__gettimeofday_vsyscall, __GI___gettimeofday,

	       __gettimeofday_vsyscall);

#else

# include <sys/time.h>

# include <sysdep.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)