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 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <devfsadm.h>
27 #include <strings.h>
28 #include <stdio.h>
29 #include <sys/dtrace.h>
30
31 static int dtrace(di_minor_t minor, di_node_t node);
32 static int dtrace_provider(di_minor_t minor, di_node_t node);
33
34 static devfsadm_create_t dtrace_create_cbt[] = {
35 { "pseudo", "ddi_pseudo", "dtrace",
36 TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace },
37 { "pseudo", "ddi_pseudo", "fasttrap",
38 TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
39 { "pseudo", "ddi_pseudo", "fbt",
40 TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
41 { "pseudo", "ddi_pseudo", "lockstat",
42 TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
43 { "pseudo", "ddi_pseudo", "profile",
44 TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
45 { "pseudo", "ddi_pseudo", "sdt",
46 TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
47 { "pseudo", "ddi_pseudo", "systrace",
48 TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
49 { "pseudo", "ddi_pseudo", "dcpc",
50 TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
51 };
52
53 DEVFSADM_CREATE_INIT_V0(dtrace_create_cbt);
54
55 static int
dtrace(di_minor_t minor,di_node_t node)56 dtrace(di_minor_t minor, di_node_t node)
57 {
58 char *mname = di_minor_name(minor);
59 char path[MAXPATHLEN];
60
61 (void) snprintf(path, sizeof (path), "dtrace/%s", mname);
62 (void) devfsadm_mklink(path, node, minor, 0);
63
64 return (DEVFSADM_CONTINUE);
65 }
66
67 static int
dtrace_provider(di_minor_t minor,di_node_t node)68 dtrace_provider(di_minor_t minor, di_node_t node)
69 {
70 char *mname = di_minor_name(minor);
71 char path[MAXPATHLEN];
72
73 (void) snprintf(path, sizeof (path), "dtrace/provider/%s", mname);
74 (void) devfsadm_mklink(path, node, minor, 0);
75
76 return (DEVFSADM_CONTINUE);
77 }
78