[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libc/string/sh/strlen.S b/ap/build/uClibc/libc/string/sh/strlen.S
new file mode 100644
index 0000000..1ccecc1
--- /dev/null
+++ b/ap/build/uClibc/libc/string/sh/strlen.S
@@ -0,0 +1,75 @@
+/* $Id: strlen.S,v 1.2 2001/06/29 14:07:15 gniibe Exp $
+ *
+ * "strlen" implementation of SuperH
+ *
+ * Copyright (C) 1999 Kaz Kojima
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* size_t strlen (const char *s) */
+
+#include <sysdep.h>
+#include <endian.h>
+
+ENTRY(strlen)
+ mov r4,r0
+ and #3,r0
+ tst r0,r0
+ bt/s 1f
+ mov #0,r2
+
+ add #-1,r0
+ shll2 r0
+ shll r0
+ braf r0
+ nop
+
+ mov.b @r4+,r1
+ tst r1,r1
+ bt 8f
+ add #1,r2
+
+ mov.b @r4+,r1
+ tst r1,r1
+ bt 8f
+ add #1,r2
+
+ mov.b @r4+,r1
+ tst r1,r1
+ bt 8f
+ add #1,r2
+
+1:
+ mov #0,r3
+2:
+ mov.l @r4+,r1
+ cmp/str r3,r1
+ bf/s 2b
+ add #4,r2
+
+ add #-4,r2
+#ifndef __LITTLE_ENDIAN__
+ swap.b r1,r1
+ swap.w r1,r1
+ swap.b r1,r1
+#endif
+ extu.b r1,r0
+ tst r0,r0
+ bt/s 8f
+ shlr8 r1
+ add #1,r2
+ extu.b r1,r0
+ tst r0,r0
+ bt/s 8f
+ shlr8 r1
+ add #1,r2
+ extu.b r1,r0
+ tst r0,r0
+ bt 8f
+ add #1,r2
+8:
+ rts
+ mov r2,r0
+END(strlen)
+libc_hidden_def (strlen)