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-rw-r--r--REORG.TODO/sysdeps/sparc/sparc32/strlen.S75
1 files changed, 75 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/sparc/sparc32/strlen.S b/REORG.TODO/sysdeps/sparc/sparc32/strlen.S
new file mode 100644
index 0000000000..59baee884e
--- /dev/null
+++ b/REORG.TODO/sysdeps/sparc/sparc32/strlen.S
@@ -0,0 +1,75 @@
+/* Determine the length of a string.
+   For SPARC v7.
+   Copyright (C) 1996-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jj@ultra.linux.cz> and
+                  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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+	.text
+	.align		4
+
+ENTRY(strlen)
+	mov	%o0, %o1
+	andn	%o0, 0x3, %o0
+
+	ld	[%o0], %o5
+	and	%o1, 0x3, %g1
+	mov	-1, %g5
+
+	sethi	%hi(0x01010101), %o2
+	sll	%g1, 3, %g1
+
+	or	%o2, %lo(0x01010101), %o2
+	srl	%g5, %g1, %g2
+
+	orn	%o5, %g2, %o5
+	sll	%o2, 7, %o3
+10:	add	%o0, 4, %o0
+
+	andn	%o3, %o5, %g1
+	sub	%o5, %o2, %g2
+
+	andcc	%g1, %g2, %g0
+	be,a	10b
+	 ld	[%o0], %o5
+
+	srl	%o5, 24, %g1
+
+	andcc	%g1, 0xff, %g0
+	be	90f
+	 sub	%o0, 4, %o0
+
+	srl	%o5, 16, %g2
+
+	andcc	%g2, 0xff, %g0
+	be	90f
+	 add	%o0, 1, %o0
+
+	srl	%o5, 8, %g1
+
+	andcc	%g1, 0xff, %g0
+	be	90f
+	 add	%o0, 1, %o0
+
+	add	%o0, 1, %o0
+
+90:	retl
+	 sub	%o0, %o1, %o0
+END(strlen)
+libc_hidden_builtin_def (strlen)