1 /* Multiple versions of memcpy. 2 Copyright (C) 2015-2021 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-memcpy.h> 20 21 #if HAVE_MEMCPY_IFUNC 22 # define memcpy __redirect_memcpy 23 # include <string.h> 24 # undef memcpy 25 # include <ifunc-resolve.h> 26 27 # if HAVE_MEMCPY_Z900_G5 28 extern __typeof (__redirect_memcpy) MEMCPY_Z900_G5 attribute_hidden; 29 # endif 30 31 # if HAVE_MEMCPY_Z10 32 extern __typeof (__redirect_memcpy) MEMCPY_Z10 attribute_hidden; 33 # endif 34 35 # if HAVE_MEMCPY_Z196 36 extern __typeof (__redirect_memcpy) MEMCPY_Z196 attribute_hidden; 37 # endif 38 39 s390_libc_ifunc_expr (__redirect_memcpy, memcpy, 40 ({ 41 s390_libc_ifunc_expr_stfle_init (); 42 (HAVE_MEMCPY_Z196 && S390_IS_Z196 (stfle_bits)) 43 ? MEMCPY_Z196 44 : (HAVE_MEMCPY_Z10 && S390_IS_Z10 (stfle_bits)) 45 ? MEMCPY_Z10 46 : MEMCPY_DEFAULT; 47 }) 48 ) 49 #endif 50