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d2c4c403 | 1 | /* Multiple versions of memmem. |
d614a753 | 2 | Copyright (C) 2018-2020 Free Software Foundation, Inc. |
d2c4c403 SL |
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/>. */ |
d2c4c403 SL |
18 | |
19 | #include <ifunc-memmem.h> | |
20 | ||
21 | #if HAVE_MEMMEM_IFUNC | |
22 | # define memmem __redirect_memmem | |
23 | # define __memmem __redirect___memmem | |
24 | # include <string.h> | |
25 | # include <ifunc-resolve.h> | |
26 | # undef memmem | |
27 | # undef __memmem | |
28 | ||
29 | # if HAVE_MEMMEM_C | |
30 | extern __typeof (__redirect_memmem) MEMMEM_C attribute_hidden; | |
31 | # endif | |
32 | ||
33 | # if HAVE_MEMMEM_Z13 | |
34 | extern __typeof (__redirect_memmem) MEMMEM_Z13 attribute_hidden; | |
35 | # endif | |
36 | ||
421749d6 SL |
37 | # if HAVE_MEMMEM_ARCH13 |
38 | extern __typeof (__redirect_memmem) MEMMEM_ARCH13 attribute_hidden; | |
39 | # endif | |
40 | ||
d2c4c403 | 41 | s390_libc_ifunc_expr (__redirect_memmem, __memmem, |
421749d6 SL |
42 | (HAVE_MEMMEM_ARCH13 && (hwcap & HWCAP_S390_VXRS_EXT2)) |
43 | ? MEMMEM_ARCH13 | |
44 | : (HAVE_MEMMEM_Z13 && (hwcap & HWCAP_S390_VX)) | |
d2c4c403 SL |
45 | ? MEMMEM_Z13 |
46 | : MEMMEM_DEFAULT | |
47 | ) | |
48 | weak_alias (__memmem, memmem) | |
49 | #endif |