zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/arch/arm/lib/muldi3.S b/ap/os/linux/linux-3.4.x/arch/arm/lib/muldi3.S
new file mode 100644
index 0000000..36c91b4
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/arch/arm/lib/muldi3.S
@@ -0,0 +1,47 @@
+/*
+ * linux/arch/arm/lib/muldi3.S
+ *
+ * Author: Nicolas Pitre
+ * Created: Oct 19, 2005
+ * Copyright: Monta Vista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define xh r0
+#define xl r1
+#define yh r2
+#define yl r3
+#else
+#define xl r0
+#define xh r1
+#define yl r2
+#define yh r3
+#endif
+
+ENTRY(__muldi3)
+ENTRY(__aeabi_lmul)
+
+ mul xh, yl, xh
+ mla xh, xl, yh, xh
+ mov ip, xl, lsr #16
+ mov yh, yl, lsr #16
+ bic xl, xl, ip, lsl #16
+ bic yl, yl, yh, lsl #16
+ mla xh, yh, ip, xh
+ mul yh, xl, yh
+ mul xl, yl, xl
+ mul ip, yl, ip
+ adds xl, xl, yh, lsl #16
+ adc xh, xh, yh, lsr #16
+ adds xl, xl, ip, lsl #16
+ adc xh, xh, ip, lsr #16
+ mov pc, lr
+
+ENDPROC(__muldi3)
+ENDPROC(__aeabi_lmul)