1 | /* Multiple versions of strlen. PowerPC64 version. |
2 | Copyright (C) 2013-2024 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 | #if defined SHARED && IS_IN (libc) |
20 | /* Redefine strlen so that the compiler won't complain about the type |
21 | mismatch with the IFUNC selector in strong_alias, below. */ |
22 | # undef strlen |
23 | # define strlen __redirect_strlen |
24 | # include <string.h> |
25 | # include <shlib-compat.h> |
26 | # include "init-arch.h" |
27 | |
28 | extern __typeof (__redirect_strlen) __libc_strlen; |
29 | |
30 | extern __typeof (__redirect_strlen) __strlen_ppc attribute_hidden; |
31 | extern __typeof (__redirect_strlen) __strlen_power7 attribute_hidden; |
32 | extern __typeof (__redirect_strlen) __strlen_power8 attribute_hidden; |
33 | extern __typeof (__redirect_strlen) __strlen_power9 attribute_hidden; |
34 | extern __typeof (__redirect_strlen) __strlen_power10 attribute_hidden; |
35 | |
36 | libc_ifunc (__libc_strlen, |
37 | # ifdef __LITTLE_ENDIAN__ |
38 | (hwcap2 & PPC_FEATURE2_ARCH_3_1 |
39 | && hwcap & PPC_FEATURE_HAS_VSX) |
40 | ? __strlen_power10 : |
41 | (hwcap2 & PPC_FEATURE2_ARCH_3_00 |
42 | && hwcap & PPC_FEATURE_HAS_VSX) |
43 | ? __strlen_power9 : |
44 | # endif |
45 | (hwcap2 & PPC_FEATURE2_ARCH_2_07 |
46 | && hwcap & PPC_FEATURE_HAS_ALTIVEC) |
47 | ? __strlen_power8 : |
48 | (hwcap & PPC_FEATURE_ARCH_2_06) |
49 | ? __strlen_power7 |
50 | : __strlen_ppc); |
51 | |
52 | #undef strlen |
53 | strong_alias (__libc_strlen, strlen) |
54 | libc_hidden_ver (__libc_strlen, strlen) |
55 | #endif |
56 | |