3 * js_flowinfo.d - JavaScript function flow with info using DTrace.
4 * Written for the JavaScript DTrace provider.
6 * $Id: js_flowinfo.d 63 2007-10-04 04:34:38Z brendan $
8 * This traces activity from all browsers on the system that are running
9 * with JavaScript provider support.
11 * USAGE: js_flowinfo.d # hit Ctrl-C to end
16 * DELTA(us) Elapsed time from previous line to this line
17 * FILE Filename of the JavScript program
18 * LINE Line number of filename
19 * TYPE Type of call (func)
26 * Filename and function names are printed if available.
28 * WARNING: Watch the first column carefully, it prints the CPU-id. If it
29 * changes, then it is very likely that the output has been shuffled.
31 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
35 * The contents of this file are subject to the terms of the
36 * Common Development and Distribution License, Version 1.0 only
37 * (the "License"). You may not use this file except in compliance
40 * You can obtain a copy of the license at Docs/cddl1.txt
41 * or http://www.opensolaris.org/os/licensing.
42 * See the License for the specific language governing permissions
43 * and limitations under the License.
47 * 09-Sep-2007 Brendan Gregg Created this.
50 #pragma D option quiet
51 #pragma D option switchrate=10
57 printf("%3s %6s %10s %16s:%-4s %-8s -- %s\n", "C", "PID", "DELTA(us)",
58 "FILE", "LINE", "TYPE", "FUNC");
61 javascript*:::function-info,
62 javascript*:::function-return
65 self->last = timestamp;
68 javascript*:::function-info
70 this->delta = (timestamp - self->last) / 1000;
71 printf("%3d %6d %10d %16s:%-4d %-8s %*s-> %s\n", cpu, pid,
72 this->delta, basename(copyinstr(arg4)), arg5, "func",
73 self->depth * 2, "", copyinstr(arg2));
75 self->last = timestamp;
78 javascript*:::function-return
80 this->delta = (timestamp - self->last) / 1000;
81 self->depth -= self->depth > 0 ? 1 : 0;
82 printf("%3d %6d %10d %16s:- %-8s %*s<- %s\n", cpu, pid,
83 this->delta, basename(copyinstr(arg0)), "func", self->depth * 2,
85 self->last = timestamp;