[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/lib/libm/s_round.c b/src/bsp/lk/lib/libm/s_round.c
new file mode 100644
index 0000000..dd293aa
--- /dev/null
+++ b/src/bsp/lk/lib/libm/s_round.c
@@ -0,0 +1,62 @@
+/*-
+ * Copyright (c) 2003, Steven G. Kargl
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice unmodified, this list of conditions, and the following
+ * disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <float.h>
+
+#include "math.h"
+#include "math_private.h"
+
+double
+round(double x)
+{
+ double t;
+ uint32_t hx;
+
+ GET_HIGH_WORD(hx, x);
+ if ((hx & 0x7fffffff) == 0x7ff00000)
+ return (x + x);
+
+ if (!(hx & 0x80000000)) {
+ t = floor(x);
+ if (t - x <= -0.5)
+ t += 1;
+ return (t);
+ } else {
+ t = floor(-x);
+ if (t + x <= -0.5)
+ t += 1;
+ return (-t);
+ }
+}
+
+#if SUPPORT_LONG_DOUBLE
+#if (LDBL_MANT_DIG == 53)
+__weak_reference(round, roundl);
+#endif
+#endif