1/* Multiple versions of bzero.
2 Copyright (C) 2018-2022 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# include <string.h>
22# include <ifunc-resolve.h>
23
24# if HAVE_MEMSET_Z900_G5
25extern __typeof (__bzero) BZERO_Z900_G5 attribute_hidden;
26# endif
27
28# if HAVE_MEMSET_Z10
29extern __typeof (__bzero) BZERO_Z10 attribute_hidden;
30# endif
31
32# if HAVE_MEMSET_Z196
33extern __typeof (__bzero) BZERO_Z196 attribute_hidden;
34# endif
35
36s390_libc_ifunc_expr (__bzero, __bzero,
37 ({
38 s390_libc_ifunc_expr_stfle_init ();
39 (HAVE_MEMSET_Z196 && S390_IS_Z196 (stfle_bits))
40 ? BZERO_Z196
41 : (HAVE_MEMSET_Z10 && S390_IS_Z10 (stfle_bits))
42 ? BZERO_Z10
43 : BZERO_DEFAULT;
44 })
45 )
46weak_alias (__bzero, bzero)
47#endif
48

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