1 | /* Multiple versions of strstr. |
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-strstr.h> |
20 | |
21 | #if HAVE_STRSTR_IFUNC |
22 | # define strstr __redirect_strstr |
23 | # include <string.h> |
24 | # include <ifunc-resolve.h> |
25 | # undef strstr |
26 | |
27 | # if HAVE_STRSTR_C |
28 | extern __typeof (__redirect_strstr) STRSTR_C attribute_hidden; |
29 | # endif |
30 | |
31 | # if HAVE_STRSTR_Z13 |
32 | extern __typeof (__redirect_strstr) STRSTR_Z13 attribute_hidden; |
33 | # endif |
34 | |
35 | # if HAVE_STRSTR_ARCH13 |
36 | extern __typeof (__redirect_strstr) STRSTR_ARCH13 attribute_hidden; |
37 | # endif |
38 | |
39 | s390_libc_ifunc_expr (__redirect_strstr, strstr, |
40 | (HAVE_STRSTR_ARCH13 && (hwcap & HWCAP_S390_VXRS_EXT2)) |
41 | ? STRSTR_ARCH13 |
42 | : (HAVE_STRSTR_Z13 && (hwcap & HWCAP_S390_VX)) |
43 | ? STRSTR_Z13 |
44 | : STRSTR_DEFAULT |
45 | ) |
46 | #endif |
47 | |