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_early_init(void);
72void sdt_init(void);
73
74extern int sdt_probetab_size;
75extern int sdt_probetab_mask;
76#define SDT_ADDR2NDX(addr) ((((uintptr_t)(addr)) >> 4) & sdt_probetab_mask)
77
78
79#if defined(__x86_64__)
80typedef uint8_t sdt_instr_t;
81#elif defined(__arm__)
82typedef uint16_t sdt_instr_t;
83#elif defined(__arm64__)
84typedef uint32_t sdt_instr_t;
85#else
86#error Unknown implementation
87#endif
88
89typedef struct sdt_provider {
90 const char *sdtp_name; /* name of provider */
91 const char *sdtp_prefix; /* prefix for probe names */
92 dtrace_pattr_t *sdtp_attr; /* stability attributes */
93 dtrace_provider_id_t sdtp_id; /* provider ID */
94} sdt_provider_t;
95
96extern sdt_provider_t sdt_providers[]; /* array of providers */
97
98typedef struct sdt_probe {
99 sdt_provider_t *sdp_provider; /* provider */
100 char *sdp_name; /* name of probe */
101 int sdp_namelen; /* length of allocated name */
102 dtrace_id_t sdp_id; /* probe ID */
103 struct modctl *sdp_ctl; /* modctl for module */
104 int sdp_loadcnt; /* load count for module */
105 int sdp_primary; /* non-zero if primary mod */
106 sdt_instr_t *sdp_patchpoint; /* patch point */
107 sdt_instr_t sdp_patchval; /* instruction to patch */
108 sdt_instr_t sdp_savedval; /* saved instruction value */
109 struct sdt_probe *sdp_next; /* next probe */
110 struct sdt_probe *sdp_hashnext; /* next on hash */
111} sdt_probe_t;
112
113typedef struct sdt_argdesc {
114 const char *sda_provider; /* provider for arg */
115 const char *sda_name; /* name of probe */
116 const int sda_ndx; /* argument index */
117 const int sda_mapping; /* mapping of argument */
118 const char *sda_native; /* native type of argument */
119 const char *sda_xlate; /* translated type of arg */
120} sdt_argdesc_t;
121
122extern void sdt_getargdesc(void *, dtrace_id_t, void *, dtrace_argdesc_t *);
123
124#ifdef __cplusplus
125}
126#endif
127
128#endif /* _SDT_IMPL_H */
129