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 _SDT_IMPL_H
28#define	_SDT_IMPL_H
29
30/*
31 * This file has been created by splitting up the original DTrace sdt.h
32 * header. Keep the pragma notice here to allow version tracking.
33 */
34
35/* #pragma ident	"@(#)sdt.h	1.7	05/06/08 SMI" */
36
37#ifdef	__cplusplus
38extern "C" {
39#endif
40
41extern const char *sdt_prefix;
42
43typedef struct sdt_probedesc {
44	char			*sdpd_name;	/* name of this probe */
45#if defined(__APPLE__)
46	char			*sdpd_func;
47#endif /* __APPLE__ */
48	unsigned long		sdpd_offset;	/* offset of call in text */
49	struct sdt_probedesc	*sdpd_next;	/* next static probe */
50} sdt_probedesc_t;
51
52#ifdef	__cplusplus
53}
54#endif
55
56/* #pragma ident	"@(#)sdt_impl.h	1.3	05/06/08 SMI" */
57
58#ifdef	__cplusplus
59extern "C" {
60#endif
61
62#include <sys/dtrace.h>
63
64#if !defined(__APPLE__)
65#if defined(__i386) || defined(__amd64)
66typedef uint8_t sdt_instr_t;
67#else
68typedef uint32_t sdt_instr_t;
69#endif
70#else
71struct module {
72	int sdt_nprobes;
73	sdt_probedesc_t *sdt_probes;
74};
75
76extern int sdt_invop(uintptr_t, uintptr_t *, uintptr_t);
77#if defined (__APPLE__)
78extern uint64_t sdt_getarg(void *, dtrace_id_t, void *, int, int);
79#endif /* __APPLE__ */
80
81void sdt_provide_module(void *, struct modctl *);
82void sdt_init(void);
83
84extern int          sdt_probetab_size;
85extern int          sdt_probetab_mask;
86#define SDT_ADDR2NDX(addr)  ((((uintptr_t)(addr)) >> 4) & sdt_probetab_mask)
87
88
89#if defined(__i386__) || defined(__x86_64__)
90typedef uint8_t sdt_instr_t;
91#else
92#error Unknown implementation
93#endif
94#endif /* __APPLE__ */
95
96typedef struct sdt_provider {
97	const char			*sdtp_name;	/* name of provider */
98	const char			*sdtp_prefix;	/* prefix for probe names */
99	dtrace_pattr_t		*sdtp_attr;	/* stability attributes */
100	dtrace_provider_id_t	sdtp_id;	/* provider ID */
101} sdt_provider_t;
102
103extern sdt_provider_t sdt_providers[];		/* array of providers */
104
105typedef struct sdt_probe {
106	sdt_provider_t	*sdp_provider;		/* provider */
107	char		*sdp_name;		/* name of probe */
108	int		sdp_namelen;		/* length of allocated name */
109	dtrace_id_t	sdp_id;			/* probe ID */
110	struct modctl	*sdp_ctl;		/* modctl for module */
111	int		sdp_loadcnt;		/* load count for module */
112	int		sdp_primary;		/* non-zero if primary mod */
113	sdt_instr_t	*sdp_patchpoint;	/* patch point */
114	sdt_instr_t	sdp_patchval;		/* instruction to patch */
115	sdt_instr_t	sdp_savedval;		/* saved instruction value */
116	struct sdt_probe *sdp_next;		/* next probe */
117	struct sdt_probe *sdp_hashnext;		/* next on hash */
118} sdt_probe_t;
119
120typedef struct sdt_argdesc {
121	const char *sda_provider;		/* provider for arg */
122	const char *sda_name;			/* name of probe */
123	const int sda_ndx;			/* argument index */
124	const int sda_mapping;			/* mapping of argument */
125	const char *sda_native;			/* native type of argument */
126	const char *sda_xlate;			/* translated type of arg */
127} sdt_argdesc_t;
128
129extern void sdt_getargdesc(void *, dtrace_id_t, void *, dtrace_argdesc_t *);
130
131#ifdef	__cplusplus
132}
133#endif
134
135#endif	/* _SDT_IMPL_H */
136