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author | David S. Miller <davem@davemloft.net> | 2010-02-21 20:12:29 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2010-02-25 23:58:50 -0800 |
commit | dbcaf07c326e18b14d19aebe011b9ffbe4a45972 (patch) | |
tree | d1fc3b26dcb5fb91d2f863c74886ce879cf49bb4 /sysdeps/sparc/sparc64/align-cpy.S | |
parent | 34a407de9661ff8e938d152445b750becb247f7c (diff) | |
download | glibc-dbcaf07c326e18b14d19aebe011b9ffbe4a45972.tar.gz glibc-dbcaf07c326e18b14d19aebe011b9ffbe4a45972.tar.xz glibc-dbcaf07c326e18b14d19aebe011b9ffbe4a45972.zip |
sparc: Reimplement 64-bit aligned copy routines and remove from memcpy files.
2010-02-25 David S. Miller <davem@davemloft.net> * sysdeps/sparc/sparc64/Makefile: Add align-cpy rule. * sysdeps/sparc/sparc64/align-cpy.S: New. * sysdeps/sparc/sparc64/memcpy.S (__align_cpy_1, __align_cpy_2, __align_cpy_4, __align_cpy_8, __align_cpy_16): Remove. * sysdeps/sparc/sparc64/sparcv9b/memcpy.S (__align_cpy_1, __align_cpy_2, __align_cpy_4, __align_cpy_8, __align_cpy_16): Remove. * sysdeps/sparc/sparc64/sparcv9v/memcpy.S (__align_cpy_1, __align_cpy_2, __align_cpy_4, __align_cpy_8, __align_cpy_16): Remove. * sysdeps/sparc/sparc64/sparcv9v2/memcpy.S (__align_cpy_1, __align_cpy_2, __align_cpy_4, __align_cpy_8, __align_cpy_16): Remove.
Diffstat (limited to 'sysdeps/sparc/sparc64/align-cpy.S')
-rw-r--r-- | sysdeps/sparc/sparc64/align-cpy.S | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/align-cpy.S b/sysdeps/sparc/sparc64/align-cpy.S new file mode 100644 index 0000000000..bae788fe44 --- /dev/null +++ b/sysdeps/sparc/sparc64/align-cpy.S @@ -0,0 +1,85 @@ +/* Aligned copy routines specified by Sparc V9 ABI. + For 64-bit sparc. + Copyright (C) 2010 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David S. Miller (davem@davemloft.net) + + 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> + + .text + .align 8 +ENTRY(__align_cpy_8) +10: cmp %o0, %o1 + be,pn %xcc, 9f + mov %o0, %o3 + subcc %o2, 0x08, %o2 + be,pn %xcc, 8f +1: ldx [%o1 + 0x00], %o5 + ldx [%o1 + 0x08], %o4 + subcc %o2, 0x10, %o2 + add %o1, 0x10, %o1 + stx %o5, [%o3 + 0x00] + stx %o4, [%o3 + 0x08] + bg,pt %xcc, 1b + add %o3, 0x10, %o3 + bne,pn %xcc, 9f + nop + ldx [%o1 + 0x00], %o5 +8: stx %o5, [%o3 + 0x00] +9: retl + nop +END(__align_cpy_8) + + .align 8 +ENTRY(__align_cpy_4) +20: cmp %o0, %o1 + be,pn %xcc, 9f + mov %o0, %o3 + subcc %o2, 0x04, %o2 + be,pn %xcc, 8f +1: lduw [%o1 + 0x00], %o5 + lduw [%o1 + 0x04], %o4 + subcc %o2, 0x08, %o2 + add %o1, 0x08, %o1 + stw %o5, [%o3 + 0x00] + stw %o4, [%o3 + 0x04] + bg,pt %xcc, 1b + add %o3, 0x08, %o3 + bne,pn %xcc, 9f + nop + lduw [%o1 + 0x00], %o5 +8: stw %o5, [%o3 + 0x00] +9: retl + nop +END(__align_cpy_4) + + .align 8 +ENTRY(__align_cpy_2) + or %o0, %o1, %o3 + or %o2, %o3, %o3 + andcc %o3, 0x7, %g0 + be,pt %xcc, 10b + andcc %o3, 0x3, %g0 + be,pt %xcc, 20b + mov %o7, %g1 + call HIDDEN_JUMPTARGET(memcpy) + mov %o7, %g1 +END(__align_cpy_2) + +weak_alias (__align_cpy_8, __align_cpy_16) +weak_alias (__align_cpy_2, __align_cpy_1) |