1 | /* Multiple versions of memset. AARCH64 version. |
2 | Copyright (C) 2017-2022 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 | /* Define multiple versions only for the definition in libc. */ |
20 | |
21 | #if IS_IN (libc) |
22 | /* Redefine memset so that the compiler won't complain about the type |
23 | mismatch with the IFUNC selector in strong_alias, below. */ |
24 | # undef memset |
25 | # define memset __redirect_memset |
26 | # include <string.h> |
27 | # include <init-arch.h> |
28 | |
29 | extern __typeof (__redirect_memset) __libc_memset; |
30 | |
31 | extern __typeof (__redirect_memset) __memset_falkor attribute_hidden; |
32 | extern __typeof (__redirect_memset) __memset_emag attribute_hidden; |
33 | extern __typeof (__redirect_memset) __memset_kunpeng attribute_hidden; |
34 | # if HAVE_AARCH64_SVE_ASM |
35 | extern __typeof (__redirect_memset) __memset_a64fx attribute_hidden; |
36 | # endif |
37 | extern __typeof (__redirect_memset) __memset_generic attribute_hidden; |
38 | |
39 | libc_ifunc (__libc_memset, |
40 | IS_KUNPENG920 (midr) |
41 | ?__memset_kunpeng |
42 | : ((IS_FALKOR (midr) || IS_PHECDA (midr)) && zva_size == 64 |
43 | ? __memset_falkor |
44 | : (IS_EMAG (midr) && zva_size == 64 |
45 | ? __memset_emag |
46 | # if HAVE_AARCH64_SVE_ASM |
47 | : (IS_A64FX (midr) && sve |
48 | ? __memset_a64fx |
49 | : __memset_generic)))); |
50 | # else |
51 | : __memset_generic))); |
52 | # endif |
53 | |
54 | # undef memset |
55 | strong_alias (__libc_memset, memset); |
56 | #endif |
57 | |