1#!/bin/ksh -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# This script primarily tests that the ::dtrace dcmd is not dumping
30# core. We don't try to make sense of the output of the dcmd nor
31# do we check to see if any output is produced. We merely see if
32# mdb fails with a fatal failure.
33#
34
35script()
36{
37	exec $dtrace -o $dtraceout -s /dev/stdin <<EOF
38	syscall:::entry
39	{
40		@[probefunc] = count();
41	}
42EOF
43}
44
45mdbdoit()
46{
47	mdb -k <<EOF
48	::walk dtrace_state | ::dtrace
49EOF
50	status=$?
51	kill $script
52}
53
54if [ $# != 1 ]; then
55	echo expected one argument: '<'dtrace-path'>'
56	exit 2
57fi
58
59dtrace=$1
60dtraceout=/tmp/dtrace.out.$$
61script &
62script=$!
63timeout=15
64
65#
66# Sleep while the above script fires into life. To guard against dtrace dying
67# and us sleeping forever we allow 15 secs for this to happen. This should be
68# enough for even the slowest systems.
69#
70while [ ! -f $dtraceout ]; do
71	sleep 1
72	timeout=$(($timeout-1))
73	if [ $timeout -eq 0 ]; then
74		echo "dtrace failed to start. Exiting."
75		exit 1
76	fi
77done
78
79mdbdoit
80
81rm $dtraceout
82
83exit $status
84