| 1 | /* Multiple versions of memcmp. |
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| 2 | Copyright (C) 2015-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <ifunc-memcmp.h> |
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| 20 | #if HAVE_MEMCMP_IFUNC |
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| 21 | # define memcmp __redirect_memcmp |
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| 22 | # include <string.h> |
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| 23 | # undef memcmp |
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| 24 | # include <ifunc-resolve.h> |
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| 25 | |
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| 26 | # if HAVE_MEMCMP_Z900_G5 |
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| 27 | extern __typeof (__redirect_memcmp) MEMCMP_Z900_G5 attribute_hidden; |
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| 28 | # endif |
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| 29 | |
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| 30 | # if HAVE_MEMCMP_Z10 |
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| 31 | extern __typeof (__redirect_memcmp) MEMCMP_Z10 attribute_hidden; |
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| 32 | # endif |
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| 33 | |
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| 34 | # if HAVE_MEMCMP_Z196 |
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| 35 | extern __typeof (__redirect_memcmp) MEMCMP_Z196 attribute_hidden; |
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| 36 | # endif |
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| 37 | |
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| 38 | s390_libc_ifunc_expr (__redirect_memcmp, memcmp, |
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| 39 | ({ |
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| 40 | s390_libc_ifunc_expr_stfle_init (); |
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| 41 | (HAVE_MEMCMP_Z196 && S390_IS_Z196 (stfle_bits)) |
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| 42 | ? MEMCMP_Z196 |
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| 43 | : (HAVE_MEMCMP_Z10 && S390_IS_Z10 (stfle_bits)) |
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| 44 | ? MEMCMP_Z10 |
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| 45 | : MEMCMP_DEFAULT; |
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| 46 | }) |
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| 47 | ) |
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| 48 | weak_alias (memcmp, bcmp); |
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| 49 | strong_alias (memcmp, __memcmpeq) |
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| 50 | libc_hidden_def (__memcmpeq) |
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| 51 | #endif |
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| 52 | |
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