1 /* Fallback C version of memmove. 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-memcpy.h> 20 21 #if HAVE_MEMMOVE_C 22 # if HAVE_MEMMOVE_IFUNC 23 /* If we use ifunc, then the memmove symbol is defined 24 in sysdeps/s390/memmove.c and we use a different name here. 25 Otherwise, we have to define memmove here or in 26 sysdeps/s390/memcpy.S depending on the used default implementation. */ 27 # define MEMMOVE MEMMOVE_C 28 # if defined SHARED && IS_IN (libc) 29 /* Define the internal symbol. */ 30 # undef libc_hidden_builtin_def 31 # define libc_hidden_builtin_def(name) \ 32 __hidden_ver1 (__memmove_c, __GI_memmove, __memmove_c); 33 # endif 34 # endif 35 36 # include <string/memmove.c> 37 #endif 38