1 /* Multiple versions of bzero. 2 Copyright (C) 2018-2021 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-memset.h> 20 #if HAVE_MEMSET_IFUNC 21 # include <string.h> 22 # include <ifunc-resolve.h> 23 24 # if HAVE_MEMSET_Z900_G5 25 extern __typeof (__bzero) BZERO_Z900_G5 attribute_hidden; 26 # endif 27 28 # if HAVE_MEMSET_Z10 29 extern __typeof (__bzero) BZERO_Z10 attribute_hidden; 30 # endif 31 32 # if HAVE_MEMSET_Z196 33 extern __typeof (__bzero) BZERO_Z196 attribute_hidden; 34 # endif 35 36 s390_libc_ifunc_expr (__bzero, __bzero, 37 ({ 38 s390_libc_ifunc_expr_stfle_init (); 39 (HAVE_MEMSET_Z196 && S390_IS_Z196 (stfle_bits)) 40 ? BZERO_Z196 41 : (HAVE_MEMSET_Z10 && S390_IS_Z10 (stfle_bits)) 42 ? BZERO_Z10 43 : BZERO_DEFAULT; 44 }) 45 ) 46 weak_alias (__bzero, bzero) 47 #endif 48