1N/A#!/usr/sbin/dtrace -Zs
1N/A/*
1N/A * sh_flow.d - snoop Bourne shell execution showing function flow using DTrace.
1N/A * Written for the sh DTrace provider.
1N/A *
1N/A * $Id: sh_flow.d 41 2007-09-17 02:20:10Z brendan $
1N/A *
1N/A * This traces shell activity from all Bourne shells on the system that are
1N/A * running with sh provider support.
1N/A *
1N/A * USAGE: sh_flow.d # hit Ctrl-C to end
1N/A *
1N/A * This watches shell function entries and returns, and indents child
1N/A * function calls. Shell builtins are also printed.
1N/A *
1N/A * FIELDS:
1N/A * C CPU-id
1N/A * TIME(us) Time since boot, us
1N/A * FILE Filename that this function belongs to
1N/A * NAME Shell function, builtin or command name
1N/A *
1N/A * LEGEND:
1N/A * -> function entry
1N/A * <- function return
1N/A * > builtin
1N/A * | external command
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 self->depth = 0;
1N/A printf("%3s %-16s %-16s -- %s\n", "C", "TIME(us)", "FILE", "NAME");
1N/A}
1N/A
1N/Ash*:::function-entry
1N/A{
1N/A printf("%3d %-16d %-16s %*s-> %s\n", cpu, timestamp / 1000,
1N/A basename(copyinstr(arg0)), self->depth * 2, "", copyinstr(arg1));
1N/A self->depth++;
1N/A}
1N/A
1N/Ash*:::function-return
1N/A{
1N/A self->depth -= self->depth > 0 ? 1 : 0;
1N/A printf("%3d %-16d %-16s %*s<- %s\n", cpu, timestamp / 1000,
1N/A basename(copyinstr(arg0)), self->depth * 2, "", copyinstr(arg1));
1N/A}
1N/A
1N/Ash*:::builtin-entry
1N/A{
1N/A printf("%3d %-16d %-16s %*s> %s\n", cpu, timestamp / 1000,
1N/A basename(copyinstr(arg0)), self->depth * 2, "", copyinstr(arg1));
1N/A}
1N/A
1N/Ash*:::command-entry
1N/A{
1N/A printf("%3d %-16d %-16s %*s| %s\n", cpu, timestamp / 1000,
1N/A basename(copyinstr(arg0)), self->depth * 2, "", copyinstr(arg1));
1N/A}