1/* Multiple versions of memset.
2 Copyright (C) 2015-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <ifunc-memset.h>
20#if HAVE_MEMSET_IFUNC
21# define memset __redirect_memset
22# include <string.h>
23# undef memset
24# include <ifunc-resolve.h>
25
26# if HAVE_MEMSET_Z900_G5
27extern __typeof (__redirect_memset) MEMSET_Z900_G5 attribute_hidden;
28# endif
29
30# if HAVE_MEMSET_Z10
31extern __typeof (__redirect_memset) MEMSET_Z10 attribute_hidden;
32# endif
33
34# if HAVE_MEMSET_Z196
35extern __typeof (__redirect_memset) MEMSET_Z196 attribute_hidden;
36# endif
37
38s390_libc_ifunc_expr (__redirect_memset, memset,
39 ({
40 s390_libc_ifunc_expr_stfle_init ();
41 (HAVE_MEMSET_Z196 && S390_IS_Z196 (stfle_bits))
42 ? MEMSET_Z196
43 : (HAVE_MEMSET_Z10 && S390_IS_Z10 (stfle_bits))
44 ? MEMSET_Z10
45 : MEMSET_DEFAULT;
46 })
47 )
48#endif
49

source code of glibc/sysdeps/s390/memset.c