summary refs log tree commit diff
path: root/sysdeps/s390/strnlen.c
blob: 716bed2eec4648eabfe927873269cec94d2be331 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
/* Multiple versions of strnlen.
   Copyright (C) 2015-2021 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  */