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.

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)