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-rw-r--r--sysdeps/sparc/sparc64/align-cpy.S85
1 files changed, 85 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/align-cpy.S b/sysdeps/sparc/sparc64/align-cpy.S
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+++ b/sysdeps/sparc/sparc64/align-cpy.S
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+/* 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)