1N/A#!/usr/sbin/dtrace -Zs
1N/A/*
1N/A * tcl_procflow.d - snoop Tcl execution showing procedure flow using DTrace.
1N/A * Written for the Tcl DTrace provider.
1N/A *
1N/A * $Id: tcl_procflow.d 63 2007-10-04 04:34:38Z brendan $
1N/A *
1N/A * This traces activity from all Tcl processes on the system with DTrace
1N/A * provider support (tcl8.4.16).
1N/A *
1N/A * USAGE: tcl_procflow.d # hit Ctrl-C to end
1N/A *
1N/A * This watches Tcl method entries and returns, and indents child
1N/A * method calls.
1N/A *
1N/A * FIELDS:
1N/A * C CPU-id
1N/A * TIME(us) Time since boot, us
1N/A * PID Process ID
1N/A * PROCEDURE Tcl procedure name
1N/A *
1N/A * LEGEND:
1N/A * -> proc entry
1N/A * <- proc return
1N/A *
1N/A * WARNING: Watch the first column carefully, it prints the CPU-id. If it
1N/A * changes, then it is very likely that the output has been shuffled.
1N/A *
1N/A * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
1N/A *
1N/A * CDDL HEADER START
1N/A *
1N/A * The contents of this file are subject to the terms of the
1N/A * Common Development and Distribution License, Version 1.0 only
1N/A * (the "License"). You may not use this file except in compliance
1N/A * with the License.
1N/A *
1N/A * You can obtain a copy of the license at Docs/cddl1.txt
1N/A * or http://www.opensolaris.org/os/licensing.
1N/A * See the License for the specific language governing permissions
1N/A * and limitations under the License.
1N/A *
1N/A * CDDL HEADER END
1N/A *
1N/A * 09-Sep-2007 Brendan Gregg Created this.
1N/A */
1N/A
1N/A#pragma D option quiet
1N/A#pragma D option switchrate=10
1N/A
1N/Aself int depth;
1N/A
1N/Adtrace:::BEGIN
1N/A{
1N/A printf("%3s %6s %-16s -- %s\n", "C", "PID", "TIME(us)", "PROCEDURE");
1N/A}
1N/A
1N/Atcl*:::proc-entry
1N/A{
1N/A printf("%3d %6d %-16d %*s-> %s\n", cpu, pid, timestamp / 1000,
1N/A self->depth * 2, "", copyinstr(arg0));
1N/A self->depth++;
1N/A}
1N/A
1N/Atcl*:::proc-return
1N/A{
1N/A self->depth -= self->depth > 0 ? 1 : 0;
1N/A printf("%3d %6d %-16d %*s<- %s\n", cpu, pid, timestamp / 1000,
1N/A self->depth * 2, "", copyinstr(arg0));
1N/A}