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#ifdef __cplusplus
31extern "C" {
32#endif
33
34extern const char *sdt_prefix;
35
36typedef struct sdt_probedesc {
37 char *sdpd_name; /* name of this probe */
38 int sdpd_namelen;
39 char *sdpd_func; /* APPLE NOTE: function name */
40 const char *sdpd_prov; /* APPLE NOTE: provider name */
41 unsigned long sdpd_offset; /* offset of call in text */
42 struct sdt_probedesc *sdpd_next; /* next static probe */
43} sdt_probedesc_t;
44
45#ifdef __cplusplus
46}
47#endif
48
49#ifdef __cplusplus
50extern "C" {
51#endif
52
53#include <sys/dtrace.h>
54
55struct module {
56 int sdt_nprobes;
57 sdt_probedesc_t *sdt_probes;
58};
59
60extern int sdt_invop(uintptr_t, uintptr_t *, uintptr_t);
61extern uint64_t sdt_getarg(void *, dtrace_id_t, void *, int, int);
62
63void sdt_provide_module(void *, struct modctl *);
64void sdt_early_init(void);
65void sdt_load_machsect(struct modctl *ctl);
66void sdt_init(void);
67
68extern int sdt_probetab_size;
69extern int sdt_probetab_mask;
70#define SDT_ADDR2NDX(addr) ((((uintptr_t)(addr)) >> 4) & sdt_probetab_mask)
71
72
73#if defined(__x86_64__)
74typedef uint8_t sdt_instr_t;
75#elif defined(__arm64__)
76typedef uint32_t sdt_instr_t;
77#else
78#error Unknown implementation
79#endif
80
81typedef struct sdt_provider {
82 const char *sdtp_name; /* name of provider */
83 const char *sdtp_prefix; /* prefix for probe names */
84 dtrace_pattr_t *sdtp_attr; /* stability attributes */
85 dtrace_provider_id_t sdtp_id; /* provider ID */
86} sdt_provider_t;
87
88extern sdt_provider_t sdt_providers[]; /* array of providers */
89
90typedef struct sdt_probe {
91 sdt_provider_t *sdp_provider; /* provider */
92 char *sdp_name; /* name of probe */
93 int sdp_namelen; /* length of allocated name */
94 dtrace_id_t sdp_id; /* probe ID */
95 struct modctl *sdp_ctl; /* modctl for module */
96 int sdp_loadcnt; /* load count for module */
97 int sdp_primary; /* non-zero if primary mod */
98 sdt_instr_t *sdp_patchpoint; /* patch point */
99 sdt_instr_t sdp_patchval; /* instruction to patch */
100 sdt_instr_t sdp_savedval; /* saved instruction value */
101 struct sdt_probe *sdp_next; /* next probe */
102 struct sdt_probe *sdp_hashnext; /* next on hash */
103} sdt_probe_t;
104
105typedef struct sdt_argdesc {
106 const char *sda_provider; /* provider for arg */
107 const char *sda_name; /* name of probe */
108 const int sda_ndx; /* argument index */
109 const int sda_mapping; /* mapping of argument */
110 const char *sda_native; /* native type of argument */
111 const char *sda_xlate; /* translated type of arg */
112} sdt_argdesc_t;
113
114extern void sdt_getargdesc(void *, dtrace_id_t, void *, dtrace_argdesc_t *);
115
116#ifdef __cplusplus
117}
118#endif
119
120#endif /* _SDT_IMPL_H */
121