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      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, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright 2005 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 #include <devfsadm.h>
     30 #include <strings.h>
     31 #include <stdio.h>
     32 #include <sys/dtrace.h>
     33 
     34 static int dtrace(di_minor_t minor, di_node_t node);
     35 static int dtrace_provider(di_minor_t minor, di_node_t node);
     36 
     37 static devfsadm_create_t dtrace_create_cbt[] = {
     38 	{ "pseudo", "ddi_pseudo", "dtrace",
     39 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace },
     40 	{ "pseudo", "ddi_pseudo", "fasttrap",
     41 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
     42 	{ "pseudo", "ddi_pseudo", "fbt",
     43 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
     44 	{ "pseudo", "ddi_pseudo", "lockstat",
     45 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
     46 	{ "pseudo", "ddi_pseudo", "profile",
     47 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
     48 	{ "pseudo", "ddi_pseudo", "sdt",
     49 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
     50 	{ "pseudo", "ddi_pseudo", "systrace",
     51 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, dtrace_provider },
     52 };
     53 
     54 DEVFSADM_CREATE_INIT_V0(dtrace_create_cbt);
     55 
     56 static int
     57 dtrace(di_minor_t minor, di_node_t node)
     58 {
     59 	char *mname = di_minor_name(minor);
     60 	char path[MAXPATHLEN];
     61 
     62 	(void) snprintf(path, sizeof (path), "dtrace/%s", mname);
     63 	(void) devfsadm_mklink(path, node, minor, 0);
     64 
     65 	return (DEVFSADM_CONTINUE);
     66 }
     67 
     68 static int
     69 dtrace_provider(di_minor_t minor, di_node_t node)
     70 {
     71 	char *mname = di_minor_name(minor);
     72 	char path[MAXPATHLEN];
     73 
     74 	(void) snprintf(path, sizeof (path), "dtrace/provider/%s", mname);
     75 	(void) devfsadm_mklink(path, node, minor, 0);
     76 
     77 	return (DEVFSADM_CONTINUE);
     78 }
     79