1 #!/usr/sbin/dtrace -Cs
2 /*
3  * kstat_types.d - Trace kstat reads with type info.
4  *                 Written using DTrace (Solaris 10 3/05)
5  *
6  * kstat is the Kernel Statistics framework, which is used by tools
7  * such as vmstat, iostat, mpstat and sar. Try running vmstat while
8  * kstat_types.d is tracing - you should see details of the kstat
9  * reads performed.
10  *
11  * $Id: kstat_types.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $
12  *
13  * USAGE:	kstat_types.d	(early release, check for updates)
14  *
15  * FIELDS:
16  *		CMD		command name
17  *		CLASS		kstat class (ks_class)
18  *		TYPE		kstat type as a string (ks_type)
19  *		MOD:INS:NAME	kstat module:instance:name
20  *
21  * COPYRIGHT: Copyright (c) 2006 Brendan Gregg.
22  *
23  * CDDL HEADER START
24  *
25  *  The contents of this file are subject to the terms of the
26  *  Common Development and Distribution License, Version 1.0 only
27  *  (the "License").  You may not use this file except in compliance
28  *  with the License.
29  *
30  *  You can obtain a copy of the license at Docs/cddl1.txt
31  *  or http://www.opensolaris.org/os/licensing.
32  *  See the License for the specific language governing permissions
33  *  and limitations under the License.
34  *
35  * CDDL HEADER END
36  *
37  * 11-Feb-2006	Brendan Gregg	Created this.
38  * 11-Feb-2006	   "      "	Last update.
39  */
40 
41 #include <sys/isa_defs.h>
42 
43 #pragma D option quiet
44 
45 dtrace:::BEGIN
46 {
47 	printf("%-16s %-16s %-6s %s\n",
48 	    "CMD", "CLASS", "TYPE", "MOD:INS:NAME");
49 }
50 
51 fbt::read_kstat_data:entry
52 {
53 #ifdef _MULTI_DATAMODEL
54 	self->uk = (kstat32_t *)copyin((uintptr_t)arg1, sizeof (kstat32_t));
55 #else
56 	self->uk = (kstat_t *)copyin((uintptr_t)arg1, sizeof (kstat_t));
57 #endif
58 	printf("%-16s %-16s %-6s %s:%d:%s\n", execname,
59 	    self->uk->ks_class == "" ? "." : self->uk->ks_class,
60 	    self->uk->ks_type == 0 ? "raw"
61 	    :  self->uk->ks_type == 1 ? "named"
62 	    :  self->uk->ks_type == 2 ? "intr"
63 	    :  self->uk->ks_type == 3 ? "io"
64 	    :  self->uk->ks_type == 4 ? "timer" : "?",
65 	    self->uk->ks_module, self->uk->ks_instance, self->uk->ks_name);
66 }
67