glibc/sysdeps/s390/strnlen.c

44 lines
1.4 KiB
C

/* Multiple versions of strnlen.
Copyright (C) 2015-2023 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
<https://www.gnu.org/licenses/>. */
#include <ifunc-strnlen.h>
#if HAVE_STRNLEN_IFUNC
# define strnlen __redirect_strnlen
# define __strnlen __redirect___strnlen
# include <string.h>
# undef strnlen
# undef __strnlen
# include <ifunc-resolve.h>
# if HAVE_STRNLEN_C
extern __typeof (__redirect_strnlen) STRNLEN_C attribute_hidden;
# endif
# if HAVE_STRNLEN_Z13
extern __typeof (__redirect_strnlen) STRNLEN_Z13 attribute_hidden;
# endif
s390_libc_ifunc_expr (__redirect___strnlen, __strnlen,
(HAVE_STRNLEN_Z13 && (hwcap & HWCAP_S390_VX))
? STRNLEN_Z13
: STRNLEN_DEFAULT
)
weak_alias (__strnlen, strnlen)
#endif /* HAVE_STRNLEN_IFUNC */