693 Opensource replacement of sunwlibm

Reviewed by: Igor Kozhukhov ikozhukhov@gmail.com
Reviewed by: Keith M Wesolowski <keith.wesolowski@joyent.com>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Dan McDonald <danmcd@omniti.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/usr/src/lib/libmvec/common/vlog_.c b/usr/src/lib/libmvec/common/vlog_.c
new file mode 100644
index 0000000000..def5cfa3b5
--- /dev/null
+++ b/usr/src/lib/libmvec/common/vlog_.c
@@ -0,0 +1,74 @@
+/*
+ * 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 2011 Nexenta Systems, Inc.  All rights reserved.
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+extern void __vlog(int, double *, int, double *, int);
+
+#if !defined(LIBMVEC_SO_BUILD)
+#if defined(ARCH_v8plusa) || defined(ARCH_v8plusb) || defined(ARCH_v9a) || defined(ARCH_v9b)
+#define CHECK_ULTRA3
+#endif
+#endif	/* !defined(LIBMVEC_SO_BUILD) */
+
+#ifdef CHECK_ULTRA3
+#include <strings.h>
+#define sysinfo _sysinfo
+#include <sys/systeminfo.h>
+
+#define BUFLEN	257
+
+static int use_ultra3 = 0;
+
+extern void __vlog_ultra3(int, double *, int, double *, int);
+#endif
+
+#pragma weak vlog_ = __vlog_
+
+/* just invoke the serial function */
+void
+__vlog_(int *n, double *x, int *stridex, double *y, int *stridey)
+{
+#ifdef CHECK_ULTRA3
+	int		u;
+	char	buf[BUFLEN];
+
+	u = use_ultra3;
+	if (!u) {
+		/* use __vlog_ultra3 on Cheetah (and ???) */
+		if (sysinfo(SI_ISALIST, buf, BUFLEN) > 0 && !strncmp(buf, "sparcv9+vis2", 12))
+			u = 3;
+		else
+			u = 1;
+		use_ultra3 = u;
+	}
+	if (u & 2)
+		__vlog_ultra3(*n, x, *stridex, y, *stridey);
+	else
+#endif
+	__vlog(*n, x, *stridex, y, *stridey);
+}