1 files changed, 50 insertions, 0 deletions
diff --git a/usr/src/lib/libc/port/gen/llog10.c b/usr/src/lib/libc/port/gen/llog10.c
new file mode 100644
index 0000000000..f06ad17546
--- /dev/null
+++ b/usr/src/lib/libc/port/gen/llog10.c
@@ -0,0 +1,50 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*	Copyright (c) 1988 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include	"lint.h"
+#include	<sys/types.h>
+#include	<sys/dl.h>
+
+dl_t
+llog10(dl_t val)
+{
+	dl_t	result;
+
+	result = lzero;
+	val    = ldivide(val, lten);
+
+	while (val.dl_hop != 0 || val.dl_lop != 0) {
+		val = ldivide(val, lten);
+		result = ladd(result, lone);
+	}
+
+	return (result);
+}