xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/pid/tst.weak2.d (revision ed093b41a93e8563e6e1e5dae0768dda2a7bcc27)
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 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*
28  * ASSERTION: check that we prefer weak symbols to local ones
29  *
30  * SECTION: pid provider
31  */
32 
33 #pragma D option destructive
34 
35 BEGIN
36 {
37 	/*
38 	 * Wait no more than a second for the first call to getpid(2).
39 	 */
40 	timeout = timestamp + 1000000000;
41 }
42 
43 syscall::getpid:return
44 /pid == $1/
45 {
46 	i = 0;
47 	raise(SIGUSR1);
48 	/*
49 	 * Wait half a second after raising the signal.
50 	 */
51 	timeout = timestamp + 500000000;
52 }
53 
54 pid$1:a.out:go:entry,
55 pid$1:a.out:_go:entry
56 /probefunc == "_go"/
57 {
58 	i++;
59 }
60 
61 pid$1:a.out:go:entry,
62 pid$1:a.out:_go:entry
63 /probefunc == "go"/
64 {
65 	trace("resolved to '_go' rather than 'go'");
66 	exit(1);
67 }
68 
69 pid$1:a.out:go:entry,
70 pid$1:a.out:_go:entry
71 /i == 2/
72 {
73 	exit(0);
74 }
75 
76 profile:::tick-4
77 /timestamp > timeout/
78 {
79 	trace("test timed out");
80 	exit(1);
81 }
82