Add a couple of mips-specific string funcs.

Port the generic optimized string funcs from glibc, with some tweaks
  to cut their size a little.  The main change is making memmove
  call memcpy for forward copying to trim redundant code.
Make use of both the generic and arch-specific speed-optimized string
  funcs configurable.  Arch-specific take precedence over generic,
  and generic takes precedence over basic size-optimized uClibc funcs.

1 files changed, 52 insertions, 0 deletions

diff --git a/libc/string/generic/strcmp.c b/libc/string/generic/strcmp.c
new file mode 100644
index 000000000..2af550d81
--- /dev/null
+++ b/libc/string/generic/strcmp.c
@@ -0,0 +1,52 @@
+/* Copyright (C) 1991, 1996, 1997, 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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 <string.h>
+#include <locale.h>
+
+#include "memcopy.h"
+
+#undef strcmp
+
+#ifdef __LOCALE_C_ONLY
+weak_alias(strcmp,strcoll);
+#endif /* __LOCALE_C_ONLY */
+
+/* Compare S1 and S2, returning less than, equal to or
+   greater than zero if S1 is lexicographically less than,
+   equal to or greater than S2.  */
+int
+strcmp (p1, p2)
+     const char *p1;
+     const char *p2;
+{
+  register const unsigned char *s1 = (const unsigned char *) p1;
+  register const unsigned char *s2 = (const unsigned char *) p2;
+  unsigned reg_char c1, c2;
+
+  do
+    {
+      c1 = (unsigned char) *s1++;
+      c2 = (unsigned char) *s2++;
+      if (c1 == '\0')
+	return c1 - c2;
+    }
+  while (c1 == c2);
+
+  return c1 - c2;
+}