xref: /illumos-gate/usr/src/uts/common/sys/sdt_impl.h (revision 581cede61ac9c14d8d4ea452562a567189eead78)
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 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _SYS_SDT_IMPL_H
28 #define	_SYS_SDT_IMPL_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #ifdef	__cplusplus
33 extern "C" {
34 #endif
35 
36 #include <sys/dtrace.h>
37 
38 #if defined(__i386) || defined(__amd64)
39 typedef uint8_t sdt_instr_t;
40 #else
41 typedef uint32_t sdt_instr_t;
42 #endif
43 
44 typedef struct sdt_provider {
45 	char			*sdtp_name;	/* name of provider */
46 	char			*sdtp_prefix;	/* prefix for probe names */
47 	dtrace_pattr_t		*sdtp_attr;	/* stability attributes */
48 	dtrace_provider_id_t	sdtp_id;	/* provider ID */
49 } sdt_provider_t;
50 
51 extern sdt_provider_t sdt_providers[];		/* array of providers */
52 
53 typedef struct sdt_probe {
54 	sdt_provider_t	*sdp_provider;		/* provider */
55 	char		*sdp_name;		/* name of probe */
56 	int		sdp_namelen;		/* length of allocated name */
57 	dtrace_id_t	sdp_id;			/* probe ID */
58 	struct modctl	*sdp_ctl;		/* modctl for module */
59 	int		sdp_loadcnt;		/* load count for module */
60 	int		sdp_primary;		/* non-zero if primary mod */
61 	sdt_instr_t	*sdp_patchpoint;	/* patch point */
62 	sdt_instr_t	sdp_patchval;		/* instruction to patch */
63 	sdt_instr_t	sdp_savedval;		/* saved instruction value */
64 	struct sdt_probe *sdp_next;		/* next probe */
65 	struct sdt_probe *sdp_hashnext;		/* next on hash */
66 } sdt_probe_t;
67 
68 typedef struct sdt_argdesc {
69 	const char *sda_provider;		/* provider for arg */
70 	const char *sda_name;			/* name of probe */
71 	const int sda_ndx;			/* argument index */
72 	const int sda_mapping;			/* mapping of argument */
73 	const char *sda_native;			/* native type of argument */
74 	const char *sda_xlate;			/* translated type of arg */
75 } sdt_argdesc_t;
76 
77 extern void sdt_getargdesc(void *, dtrace_id_t, void *, dtrace_argdesc_t *);
78 
79 #ifdef	__cplusplus
80 }
81 #endif
82 
83 #endif	/* _SYS_SDT_IMPL_H */
84