[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/i386/strrchr.c b/ap/build/uClibc/libc/string/i386/strrchr.c
new file mode 100644
index 0000000..5c349f6
--- /dev/null
+++ b/ap/build/uClibc/libc/string/i386/strrchr.c
@@ -0,0 +1,58 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#include <string.h>
+
+char *strrchr(const char *s, int c)
+{
+ char *eax;
+
+ __asm__ __volatile__(
+ " movb %%cl, %%ch\n"
+ "1: movb (%1), %%cl\n" /* load char */
+ " cmpb %%cl, %%ch\n" /* char == c? */
+ " jne 2f\n"
+ " movl %1, %%eax\n"
+ "2: incl %1\n"
+ " testb %%cl, %%cl\n" /* char == NUL? */
+ " jnz 1b\n"
+ /* "=c": use ecx, not ebx (-fpic uses it). */
+ : "=a" (eax), "=r" (s), "=c" (c)
+ : "0" (0), "1" (s), "2" (c)
+ /* : no clobbers */
+ );
+ return eax;
+}
+libc_hidden_def(strrchr)
+#ifdef __UCLIBC_SUSV3_LEGACY__
+strong_alias(strrchr,rindex)
+#endif