1 | /* Multiple versions of strncmp. |
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 | /* Define multiple versions only for definition in libc. */ |
20 | #if defined SHARED && IS_IN (libc) |
21 | # define strncmp __redirect_strncmp |
22 | /* Omit the strncmp inline definitions because it would redefine strncmp. */ |
23 | # define __NO_STRING_INLINES |
24 | # include <string.h> |
25 | # include <shlib-compat.h> |
26 | # include "init-arch.h" |
27 | |
28 | extern __typeof (strncmp) __strncmp_ppc attribute_hidden; |
29 | extern __typeof (strncmp) __strncmp_power8 attribute_hidden; |
30 | # ifdef __LITTLE_ENDIAN__ |
31 | extern __typeof (strncmp) __strncmp_power9 attribute_hidden; |
32 | # endif |
33 | # undef strncmp |
34 | |
35 | /* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle |
36 | ifunc symbol properly. */ |
37 | libc_ifunc_redirected (__redirect_strncmp, strncmp, |
38 | # ifdef __LITTLE_ENDIAN__ |
39 | (hwcap2 & PPC_FEATURE2_ARCH_3_00 |
40 | && hwcap & PPC_FEATURE_HAS_ALTIVEC) |
41 | ? __strncmp_power9 : |
42 | # endif |
43 | (hwcap2 & PPC_FEATURE2_ARCH_2_07) |
44 | ? __strncmp_power8 |
45 | : __strncmp_ppc); |
46 | #endif |
47 | |