xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/proc/tst.exitcore.ksh (revision 797f979d1fe26bfb1cdeb3e7a86ed24c0b654200)
1#
2# CDDL HEADER START
3#
4# The contents of this file are subject to the terms of the
5# Common Development and Distribution License (the "License").
6# You may not use this file except in compliance with the License.
7#
8# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9# or http://www.opensolaris.org/os/licensing.
10# See the License for the specific language governing permissions
11# and limitations under the License.
12#
13# When distributing Covered Code, include this CDDL HEADER in each
14# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15# If applicable, add the following below this CDDL HEADER, with the
16# fields enclosed by brackets "[]" replaced with your own identifying
17# information: Portions Copyright [yyyy] [name of copyright owner]
18#
19# CDDL HEADER END
20#
21
22#
23# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24# Use is subject to license terms.
25#
26# ident	"%Z%%M%	%I%	%E% SMI"
27
28#
29# This script tests that the proc:::exit probe fires with the correct argument
30# when the process core dumps.  The problematic bit here is making sure that
31# a process _can_ dump core -- if core dumps are disabled on both a global
32# and per-process basis, this test will fail.  Rather than having this test
33# muck with coreadm(1M) settings, it will fail explicitly in this case and
34# provide a hint as to the problem.  In general, machines should never be
35# running with both per-process and global core dumps disabled -- so this
36# should be a non-issue in practice.
37#
38# If this fails, the script will run indefinitely; it relies on the harness
39# to time it out.
40#
41script()
42{
43	$dtrace -s /dev/stdin <<EOF
44	proc:::exit
45	/curpsinfo->pr_ppid == $child &&
46	    curpsinfo->pr_psargs == "$longsleep" && args[0] == CLD_DUMPED/
47	{
48		exit(0);
49	}
50
51	proc:::exit
52	/curpsinfo->pr_ppid == $child &&
53	    curpsinfo->pr_psargs == "$longsleep" && args[0] != CLD_DUMPED/
54	{
55		printf("Child process could not dump core.  Check coreadm(1M)");
56		printf(" settings; either per-process or global core dumps ");
57		printf("must be enabled for this test to work properly.");
58		exit(1);
59	}
60EOF
61}
62
63sleeper()
64{
65	/usr/bin/coreadm -p $corefile
66	while true; do
67		$longsleep &
68		/usr/bin/sleep 1
69		kill -SEGV $!
70	done
71	/usr/bin/rm -f $corefile
72}
73
74if [ $# != 1 ]; then
75	echo expected one argument: '<'dtrace-path'>'
76	exit 2
77fi
78
79dtrace=$1
80longsleep="/usr/bin/sleep 10000"
81corefile=/tmp/core.$$
82
83sleeper &
84child=$!
85
86script
87status=$?
88
89pstop $child
90pkill -P $child
91kill $child
92prun $child
93
94/usr/bin/rm -f $corefile
95exit $status
96