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	char			*sdpd_func;	/* APPLE NOTE: function name */
46	unsigned long		sdpd_offset;	/* offset of call in text */
47	struct sdt_probedesc	*sdpd_next;	/* next static probe */
48} sdt_probedesc_t;
49
50#ifdef	__cplusplus
51}
52#endif
53
54/* #pragma ident	"@(#)sdt_impl.h	1.3	05/06/08 SMI" */
55
56#ifdef	__cplusplus
57extern "C" {
58#endif
59
60#include <sys/dtrace.h>
61
62struct module {
63	int sdt_nprobes;
64	sdt_probedesc_t *sdt_probes;
65};
66
67extern int sdt_invop(uintptr_t, uintptr_t *, uintptr_t);
68extern uint64_t sdt_getarg(void *, dtrace_id_t, void *, int, int);
69
70void sdt_provide_module(void *, struct modctl *);
71void sdt_init(void);
72
73extern int          sdt_probetab_size;
74extern int          sdt_probetab_mask;
75#define SDT_ADDR2NDX(addr)  ((((uintptr_t)(addr)) >> 4) & sdt_probetab_mask)
76
77
78#if defined(__x86_64__)
79typedef uint8_t sdt_instr_t;
80#else
81#error Unknown implementation
82#endif
83
84typedef struct sdt_provider {
85	const char			*sdtp_name;	/* name of provider */
86	const char			*sdtp_prefix;	/* prefix for probe names */
87	dtrace_pattr_t		*sdtp_attr;	/* stability attributes */
88	dtrace_provider_id_t	sdtp_id;	/* provider ID */
89} sdt_provider_t;
90
91extern sdt_provider_t sdt_providers[];		/* array of providers */
92
93typedef struct sdt_probe {
94	sdt_provider_t	*sdp_provider;		/* provider */
95	char		*sdp_name;		/* name of probe */
96	int		sdp_namelen;		/* length of allocated name */
97	dtrace_id_t	sdp_id;			/* probe ID */
98	struct modctl	*sdp_ctl;		/* modctl for module */
99	int		sdp_loadcnt;		/* load count for module */
100	int		sdp_primary;		/* non-zero if primary mod */
101	sdt_instr_t	*sdp_patchpoint;	/* patch point */
102	sdt_instr_t	sdp_patchval;		/* instruction to patch */
103	sdt_instr_t	sdp_savedval;		/* saved instruction value */
104	struct sdt_probe *sdp_next;		/* next probe */
105	struct sdt_probe *sdp_hashnext;		/* next on hash */
106} sdt_probe_t;
107
108typedef struct sdt_argdesc {
109	const char *sda_provider;		/* provider for arg */
110	const char *sda_name;			/* name of probe */
111	const int sda_ndx;			/* argument index */
112	const int sda_mapping;			/* mapping of argument */
113	const char *sda_native;			/* native type of argument */
114	const char *sda_xlate;			/* translated type of arg */
115} sdt_argdesc_t;
116
117extern void sdt_getargdesc(void *, dtrace_id_t, void *, dtrace_argdesc_t *);
118
119#ifdef	__cplusplus
120}
121#endif
122
123#endif	/* _SDT_IMPL_H */
124