diff options
Diffstat (limited to 'sysdeps/s390/memcpy.c')
| -rw-r--r-- | sysdeps/s390/memcpy.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/s390/memcpy.c b/sysdeps/s390/memcpy.c new file mode 100644 index 0000000000..96868a32c1 --- /dev/null +++ b/sysdeps/s390/memcpy.c @@ -0,0 +1,49 @@ +/* Multiple versions of memcpy. + Copyright (C) 2015-2019 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 + <https://www.gnu.org/licenses/>. */ + +#include <ifunc-memcpy.h> + +#if HAVE_MEMCPY_IFUNC +# define memcpy __redirect_memcpy +# include <string.h> +# undef memcpy +# include <ifunc-resolve.h> + +# if HAVE_MEMCPY_Z900_G5 +extern __typeof (__redirect_memcpy) MEMCPY_Z900_G5 attribute_hidden; +# endif + +# if HAVE_MEMCPY_Z10 +extern __typeof (__redirect_memcpy) MEMCPY_Z10 attribute_hidden; +# endif + +# if HAVE_MEMCPY_Z196 +extern __typeof (__redirect_memcpy) MEMCPY_Z196 attribute_hidden; +# endif + +s390_libc_ifunc_expr (__redirect_memcpy, memcpy, + ({ + s390_libc_ifunc_expr_stfle_init (); + (HAVE_MEMCPY_Z196 && S390_IS_Z196 (stfle_bits)) + ? MEMCPY_Z196 + : (HAVE_MEMCPY_Z10 && S390_IS_Z10 (stfle_bits)) + ? MEMCPY_Z10 + : MEMCPY_DEFAULT; + }) + ) +#endif |