1#!/usr/sbin/dtrace -Zs
2/*
3 * js_objnew.d - count JavaScript object creation using DTrace.
4 *               Written for the JavaScript DTrace provider.
5 *
6 * $Id: js_objnew.d 63 2007-10-04 04:34:38Z brendan $
7 *
8 * This traces JavaScript activity from all browsers running on the system
9 * with JavaScript provider support.
10 *
11 * USAGE: js_objnew.d	 	# hit Ctrl-C to end
12 *
13 * FIELDS:
14 *		FILE		Filename of the JavaScript program
15 *		CLASS		Class of new object
16 *		COUNT		Number of object creations during tracing
17 *
18 * Filename and class names are printed if available.
19 *
20 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
21 *
22 * CDDL HEADER START
23 *
24 *  The contents of this file are subject to the terms of the
25 *  Common Development and Distribution License, Version 1.0 only
26 *  (the "License").  You may not use this file except in compliance
27 *  with the License.
28 *
29 *  You can obtain a copy of the license at Docs/cddl1.txt
30 *  or http://www.opensolaris.org/os/licensing.
31 *  See the License for the specific language governing permissions
32 *  and limitations under the License.
33 *
34 * CDDL HEADER END
35 *
36 * 09-Sep-2007	Brendan Gregg	Created this.
37 */
38
39#pragma D option quiet
40
41dtrace:::BEGIN
42{
43	printf("Tracing... Hit Ctrl-C to end.\n");
44}
45
46javascript*:::object-create-done
47{
48	@objs[basename(copyinstr(arg0)), copyinstr(arg1)] = count();
49}
50
51dtrace:::END
52{
53	printf(" %-24s %-36s %8s\n", "FILE", "CLASS", "COUNT");
54	printa(" %-24.24s %-36s %@8d\n", @objs);
55}
56