/* Copyright (C) 2005-2018 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/>.  */

#if defined SHARED && !defined __powerpc64__

# define __gettimeofday __redirect___gettimeofday

#else

# define __redirect___gettimeofday __gettimeofday

#endif

#include <sys/time.h>

#ifdef SHARED

# include <dl-vdso.h>

# include <libc-vdso.h>

# include <dl-machine.h>

# ifndef __powerpc64__

#  undef __gettimeofday

int

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

{

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

}

/* __GI___gettimeofday is defined as hidden and for ppc32 it enables the

   compiler make a local call (symbol@local) for internal GLIBC usage. It

   means the PLT won't be used and the ifunc resolver will be called directly.

   For ppc64 a call to a function in another translation unit might use a

   different toc pointer thus disallowing direct branchess and making internal

   ifuncs calls safe.  */

#  undef libc_hidden_def

#  define libc_hidden_def(name)					\

  __hidden_ver1 (__gettimeofday_vsyscall, __GI___gettimeofday,	\

	       __gettimeofday_vsyscall);

# endif /* !__powerpc64__  */

static int

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

{

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

}

# define INIT_ARCH()							\

  PREPARE_VERSION (linux2615, "LINUX_2.6.15", 123718565);		\

  void *vdso_gettimeofday = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615);

/* If the vDSO is not available we fall back syscall.  */

libc_ifunc_hidden (__redirect___gettimeofday, __gettimeofday,

		   vdso_gettimeofday

		   ? VDSO_IFUNC_RET (vdso_gettimeofday)

		   : (void *) __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)