3 * tcl_flow.d - snoop Tcl execution showing procedure flow using DTrace.
4 * Written for the Tcl DTrace provider.
6 * $Id: tcl_flow.d 63 2007-10-04 04:34:38Z brendan $
8 * This traces activity from all Tcl processes on the system with DTrace
9 * provider support (tcl8.4.16).
11 * USAGE: tcl_flow.d # hit Ctrl-C to end
13 * This watches Tcl method entries and returns, and indents child
18 * TIME(us) Time since boot, us
20 * CALL Tcl command or procedure name
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 %-16s -- %s\n", "C", "PID", "TIME(us)", "CALL");
62 printf("%3d %6d %-16d %*s-> %s\n", cpu, pid, timestamp / 1000,
63 self->depth * 2, "", copyinstr(arg0));
69 self->depth -= self->depth > 0 ? 1 : 0;
70 printf("%3d %6d %-16d %*s<- %s\n", cpu, pid, timestamp / 1000,
71 self->depth * 2, "", copyinstr(arg0));
76 printf("%3d %6d %-16d %*s > %s\n", cpu, pid, timestamp / 1000,
77 self->depth * 2, "", copyinstr(arg0));
83 self->depth -= self->depth > 0 ? 1 : 0;
84 printf("%3d %6d %-16d %*s < %s\n", cpu, pid, timestamp / 1000,
85 self->depth * 2, "", copyinstr(arg0));