diff options
Diffstat (limited to 'sysdeps/sparc/sparc64/multiarch/memcpy.S')
| -rw-r--r-- | sysdeps/sparc/sparc64/multiarch/memcpy.S | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/multiarch/memcpy.S b/sysdeps/sparc/sparc64/multiarch/memcpy.S new file mode 100644 index 0000000000..a708de10e2 --- /dev/null +++ b/sysdeps/sparc/sparc64/multiarch/memcpy.S @@ -0,0 +1,107 @@ +/* Multiple versions of memcpy + Copyright (C) 2010 Free Software Foundation, Inc. + Contributed by David S. Miller (davem@davemloft.net) + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <rtld-global-offsets.h> + +#if !defined NOT_IN_libc + .text +ENTRY(memcpy) + .type memcpy, @gnu_indirect_function +# ifdef SHARED + mov %o7, %o5 + sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %o3 + call 1f + or %o3, %lo(_GLOBAL_OFFSET_TABLE_+4), %o3 +1: add %o7, %o3, %o3 + mov %o5, %o7 + sethi %hi(_rtld_global_ro), %o2 + or %o2, %lo(_rtld_global_ro), %o2 +# ifdef __arch64__ + ldx [%o3 + %o2], %o2 + ldx [%o2 + RTLD_GLOBAL_RO_DL_HWCAP_OFFSET], %o2 +# else + ld [%o3 + %o2], %o2 + ld [%o2 + RTLD_GLOBAL_RO_DL_HWCAP_OFFSET + 4], %o2 +# endif +# else + set _dl_hwcap, %o3 +# ifdef __arch64__ + ldx [%o3], %o2 +# else + ld [%o3 + 4], %o2 +# endif +# endif + andcc %o2, 0x80, %g0 ! HWCAP_SPARC_N2 + be 1f + andcc %o2, 0x40, %g0 ! HWCAP_SPARC_BLKINIT +# ifdef SHARED + sethi %gdop_hix22(__memcpy_niagara2), %o1 + xor %o1, %gdop_lox10(__memcpy_niagara2), %o1 +# else + set __memcpy_niagara2, %o1 +# endif + ba 10f + nop +1: be 1f + andcc %o2, 0x20, %g0 ! HWCAP_SPARC_ULTRA3 +# ifdef SHARED + sethi %gdop_hix22(__memcpy_niagara1), %o1 + xor %o1, %gdop_lox10(__memcpy_niagara1), %o1 +# else + set __memcpy_niagara1, %o1 +# endif + ba 10f + nop +1: be 9f + nop +# ifdef SHARED + sethi %gdop_hix22(__memcpy_ultra3), %o1 + xor %o1, %gdop_lox10(__memcpy_ultra3), %o1 +# else + set __memcpy_ultra3, %o1 +# endif + ba 10f + nop +9: +# ifdef SHARED + sethi %gdop_hix22(__memcpy_ultra1), %o1 + xor %o1, %gdop_lox10(__memcpy_ultra1), %o1 +# else + set __memcpy_ultra1, %o1 +# endif +10: +# ifdef SHARED + add %o3, %o1, %o1 +# endif + retl + mov %o1, %o0 +END(memcpy) + +# undef libc_hidden_builtin_def +/* IFUNC doesn't work with the hidden functions in a shared library. */ +# define libc_hidden_builtin_def(name) \ + .globl __GI_memcpy; __GI_memcpy = __memcpy_ultra1 + +#define memcpy __memcpy_ultra1 + +#endif + +#include "../memcpy.S" |