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436e4d5b | 1 | /* Multiple versions of strlen. AARCH64 version. |
d614a753 | 2 | Copyright (C) 2018-2020 Free Software Foundation, Inc. |
436e4d5b SP |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
436e4d5b SP |
18 | |
19 | /* Define multiple versions only for the definition in libc. */ | |
20 | ||
21 | #if IS_IN (libc) | |
22 | /* Redefine strlen so that the compiler won't complain about the type | |
23 | mismatch with the IFUNC selector in strong_alias, below. */ | |
24 | # undef strlen | |
25 | # define strlen __redirect_strlen | |
26 | # include <string.h> | |
27 | # include <init-arch.h> | |
28 | ||
29 | #define USE_ASIMD_STRLEN() IS_FALKOR (midr) | |
30 | ||
31 | extern __typeof (__redirect_strlen) __strlen; | |
32 | ||
33 | extern __typeof (__redirect_strlen) __strlen_generic attribute_hidden; | |
34 | extern __typeof (__redirect_strlen) __strlen_asimd attribute_hidden; | |
35 | ||
36 | libc_ifunc (__strlen, | |
10df95cd | 37 | (USE_ASIMD_STRLEN () || IS_KUNPENG920 (midr) |
c2150769 XZ |
38 | ? __strlen_asimd |
39 | :__strlen_generic)); | |
436e4d5b SP |
40 | |
41 | # undef strlen | |
42 | strong_alias (__strlen, strlen); | |
43 | #endif |