glibc/sysdeps/s390/stpncpy.c

/* Multiple versions of stpncpy.
   Copyright (C) 2015-2018 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/>.  */

#include <ifunc-stpncpy.h>

#if HAVE_STPNCPY_IFUNC
# define stpncpy __redirect_stpncpy
# define __stpncpy __redirect___stpncpy
# include <string.h>
# undef stpncpy
# undef __stpncpy
# include <ifunc-resolve.h>

# if HAVE_STPNCPY_C
extern __typeof (__redirect_stpncpy) STPNCPY_C attribute_hidden;
# endif

# if HAVE_STPNCPY_Z13
extern __typeof (__redirect_stpncpy) STPNCPY_Z13 attribute_hidden;
# endif

s390_libc_ifunc_expr (__redirect___stpncpy, __stpncpy,
		      (HAVE_STPNCPY_Z13 && (hwcap & HWCAP_S390_VX))
		      ? STPNCPY_Z13
		      : STPNCPY_DEFAULT
		      )
weak_alias (__stpncpy, stpncpy)
#endif