3 * js_objnew.d - count JavaScript object creation using DTrace.
4 * Written for the JavaScript DTrace provider.
6 * $Id: js_objnew.d 63 2007-10-04 04:34:38Z brendan $
8 * This traces JavaScript activity from all browsers running on the system
9 * with JavaScript provider support.
11 * USAGE: js_objnew.d # hit Ctrl-C to end
14 * FILE Filename of the JavaScript program
15 * CLASS Class of new object
16 * COUNT Number of object creations during tracing
18 * Filename and class names are printed if available.
20 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
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
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.
36 * 09-Sep-2007 Brendan Gregg Created this.
39 #pragma D option quiet
43 printf("Tracing... Hit Ctrl-C to end.\n");
46 javascript*:::object-create-done
48 @objs[basename(copyinstr(arg0)), copyinstr(arg1)] = count();
53 printf(" %-24s %-36s %8s\n", "FILE", "CLASS", "COUNT");
54 printa(" %-24.24s %-36s %@8d\n", @objs);