xref: /titanic_41/usr/src/cmd/dtrace/test/tst/common/usdt/tst.noreap.ksh (revision 6ab3986229f6d7d9a83c94e3a6e68fd05da5cff0)
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 (c) 2011, Joyent, Inc. All rights reserved.
24#
25
26if [ $# != 1 ]; then
27	echo expected one argument: '<'dtrace-path'>'
28	exit 2
29fi
30
31dtrace=$1
32DIR=/var/tmp/dtest.$$
33
34mkdir $DIR
35cd $DIR
36
37cat > test.c <<EOF
38#include <unistd.h>
39#include <sys/sdt.h>
40
41int
42main(int argc, char **argv)
43{
44	DTRACE_PROBE(test_prov, probe1);
45}
46EOF
47
48cat > prov.d <<EOF
49provider test_prov {
50	probe probe1();
51};
52EOF
53
54gcc -m32 -c test.c
55if [ $? -ne 0 ]; then
56	print -u2 "failed to compile test.c"
57	exit 1
58fi
59$dtrace -G -32 -s prov.d test.o
60if [ $? -ne 0 ]; then
61	print -u2 "failed to create DOF"
62	exit 1
63fi
64
65gcc -m32 -o test test.o prov.o
66if [ $? -ne 0 ]; then
67	print -u2 "failed to link final executable"
68	exit 1
69fi
70
71script()
72{
73	$dtrace -Zwqs /dev/stdin <<EOF
74
75	BEGIN
76	{
77		spec = speculation();
78		speculate(spec);
79		printf("this is speculative!\n");
80	}
81
82	test_prov*:::
83	{
84		probeid = id;
85	}
86
87	tick-1sec
88	/probeid == 0/
89	{
90		printf("launching test\n");
91		system("./test");
92	}
93
94	tick-1sec
95	/probeid != 0/
96	{
97		printf("attempting re-enabling\n");
98		system("dtrace -e -x errtags -i %d", probeid);
99		attempts++;
100	}
101
102	tick-1sec
103	/attempts > 10/
104	{
105		exit(0);
106	}
107EOF
108}
109
110script 2>&1 | tee test.out
111
112#
113# It should be true that our probe was not reaped after the provider was made
114# defunct: the speculative tracing action prevents reaping of any ECB in the
115# enabling.
116#
117status=0
118
119if grep D_PDESC_INVAL test.out 2> /dev/null 1>&2 ; then
120	status=1
121else
122	grep D_PROC_GRAB test.out 2> /dev/null 1>&2
123	status=$?
124fi
125
126cd /
127/usr/bin/rm -rf $DIR
128
129exit $status
130