Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / SLOF / lib / libc / string / memmove.c

diff --git a/qemu/roms/SLOF/lib/libc/string/memmove.c b/qemu/roms/SLOF/lib/libc/string/memmove.c
new file mode 100644 (file)
index 0000000..3acf1a9
--- /dev/null
+++ b/qemu/roms/SLOF/lib/libc/string/memmove.c
@@ -0,0 +1,42 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include "string.h"
+
+
+void *
+memmove(void *dest, const void *src, size_t n)
+{
+       char *cdest;
+       const char *csrc;
+       int i;
+
+       /* Do the buffers overlap in a bad way? */
+       if (src < dest && src + n >= dest) {
+               /* Copy from end to start */
+               cdest = dest + n - 1;
+               csrc = src + n - 1;
+               for (i = 0; i < n; i++) {
+                       *cdest-- = *csrc--;
+               }
+       }
+       else {
+               /* Normal copy is possible */
+               cdest = dest;
+               csrc = src;
+               for (i = 0; i < n; i++) {
+                       *cdest++ = *csrc++;
+               }
+       }
+
+       return dest;
+}