xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/docsExamples/ksyms.d (revision bcd524b5c10222cf2a1ef37ac7ea8bf1baa3a2ee)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  * ASSERTION:
31  *	Verify doc example 7-2
32  *
33  * SECTION:
34  *	DocExamples/ksyms
35  */
36 
37 
38 /* Must run "strings -a /dev/ksyms in another shell on the system */
39 
40 
41 #pragma D option quiet
42 
43 syscall::read:entry
44 /curpsinfo->pr_psargs == "strings -a /dev/ksyms"/
45 {
46 	printf("read %u bytes to user address %x\n", arg2, arg1);
47 	self->watched = 1;
48 }
49 
50 syscall::read:return
51 /self->watched/
52 {
53 	self->watched = 0;
54 }
55 
56 fbt::uiomove:entry
57 /self->watched/
58 {
59 	this->iov = args[3]->uio_iov;
60 
61 	printf("uiomove %u bytes to %p in pid %d\n", this->iov->iov_len,
62 	    this->iov->iov_base, pid);
63 }
64