svn commit: r291344 - head/share/dtrace
George V. Neville-Neil
gnn at FreeBSD.org
Thu Nov 26 00:53:41 UTC 2015
Author: gnn
Date: Thu Nov 26 00:53:39 2015
New Revision: 291344
URL: https://svnweb.freebsd.org/changeset/base/291344
Log:
Replace the retval.sh shell script with a native DTrace script.
Suggested by: markj
Added:
head/share/dtrace/retval (contents, props changed)
Deleted:
head/share/dtrace/retval.sh
Added: head/share/dtrace/retval
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/share/dtrace/retval Thu Nov 26 00:53:39 2015 (r291344)
@@ -0,0 +1,42 @@
+#!/usr/sbin/dtrace -s
+/*-
+ * Copyright (c) 2015 George V. Neville-Neil <gnn at neville-neil.com>
+ * 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, 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 AUTHORS AND CONTRIBUTORS ``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 AUTHORS OR CONTRIBUTORS 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.
+ *
+ * $FreeBSD$
+ *
+ * retval - show the return value of any probe named by the user
+ *
+ * USAGE: retval name
+ *
+ * The name can be a full function name or a wild card name. The
+ * caller is responsible for handling the escaping of wild cards.
+ */
+
+#pragma D option quiet
+
+fbt::$1:return {
+ printf("%s %d\n", probefunc, arg1);
+}
+
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