diff options
Diffstat (limited to 'sysdeps/aarch64/multiarch/memset.c')
| -rw-r--r-- | sysdeps/aarch64/multiarch/memset.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/sysdeps/aarch64/multiarch/memset.c b/sysdeps/aarch64/multiarch/memset.c new file mode 100644 index 0000000000..d74ed3a549 --- /dev/null +++ b/sysdeps/aarch64/multiarch/memset.c @@ -0,0 +1,41 @@ +/* Multiple versions of memset. AARCH64 version. + Copyright (C) 2017-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +/* Define multiple versions only for the definition in libc. */ + +#if IS_IN (libc) +/* Redefine memset so that the compiler won't complain about the type + mismatch with the IFUNC selector in strong_alias, below. */ +# undef memset +# define memset __redirect_memset +# include <string.h> +# include <init-arch.h> + +extern __typeof (__redirect_memset) __libc_memset; + +extern __typeof (__redirect_memset) __memset_falkor attribute_hidden; +extern __typeof (__redirect_memset) __memset_generic attribute_hidden; + +libc_ifunc (__libc_memset, + ((IS_FALKOR (midr) || IS_PHECDA (midr)) && zva_size == 64 + ? __memset_falkor + : __memset_generic)); + +# undef memset +strong_alias (__libc_memset, memset); +#endif |