master
1/* $NetBSD: sdt.h,v 1.15 2022/10/29 14:00:12 riastradh Exp $ */
2
3/*-
4 * Copyright 2006-2008 John Birrell <jb@FreeBSD.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: head/sys/sys/sdt.h 270990 2014-09-02 23:43:06Z markj $
28 *
29 * Statically Defined Tracing (SDT) definitions.
30 *
31 */
32
33#ifndef _SYS_SDT_H
34#define _SYS_SDT_H
35
36#ifndef _KERNEL
37
38#define _DTRACE_VERSION 1
39
40#define DTRACE_PROBE(prov, name) do { \
41 extern void __dtrace_##prov##___##name(void); \
42 __dtrace_##prov##___##name(); \
43} while (0)
44
45#define DTRACE_PROBE1(prov, name, arg1) do { \
46 extern void __dtrace_##prov##___##name(unsigned long); \
47 __dtrace_##prov##___##name((unsigned long)arg1); \
48} while (0)
49
50#define DTRACE_PROBE2(prov, name, arg1, arg2) do { \
51 extern void __dtrace_##prov##___##name(unsigned long, \
52 unsigned long); \
53 __dtrace_##prov##___##name((unsigned long)arg1, \
54 (unsigned long)arg2); \
55} while (0)
56
57#define DTRACE_PROBE3(prov, name, arg1, arg2, arg3) do { \
58 extern void __dtrace_##prov##___##name(unsigned long, \
59 unsigned long, unsigned long); \
60 __dtrace_##prov##___##name((unsigned long)arg1, \
61 (unsigned long)arg2, (unsigned long)arg3); \
62} while (0)
63
64#define DTRACE_PROBE4(prov, name, arg1, arg2, arg3, arg4) do { \
65 extern void __dtrace_##prov##___##name(unsigned long, \
66 unsigned long, unsigned long, unsigned long); \
67 __dtrace_##prov##___##name((unsigned long)arg1, \
68 (unsigned long)arg2, (unsigned long)arg3, \
69 (unsigned long)arg4); \
70} while (0)
71
72#define DTRACE_PROBE5(prov, name, arg1, arg2, arg3, arg4, arg5) do { \
73 extern void __dtrace_##prov##___##name(unsigned long, \
74 unsigned long, unsigned long, unsigned long, unsigned long);\
75 __dtrace_##prov##___##name((unsigned long)arg1, \
76 (unsigned long)arg2, (unsigned long)arg3, \
77 (unsigned long)arg4, (unsigned long)arg5); \
78} while (0)
79
80#else /* _KERNEL */
81
82#include <sys/types.h>
83#include <sys/cdefs.h>
84#include <sys/queue.h>
85
86#ifdef _KERNEL_OPT
87#include "opt_dtrace.h"
88#endif
89
90#ifndef KDTRACE_HOOKS
91
92#define SDT_PROVIDER_DEFINE(prov)
93#define SDT_PROVIDER_DECLARE(prov)
94#define SDT_PROBE_DEFINE(prov, mod, func, name)
95#define SDT_PROBE_DECLARE(prov, mod, func, name)
96#define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
97 __nothing
98#define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype)
99
100#define SDT_PROBE_DEFINE0(prov, mod, func, name)
101#define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0)
102#define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1)
103#define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)
104#define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3)
105#define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
106#define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, \
107 arg3, arg4, arg5)
108#define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, \
109 arg3, arg4, arg5, arg6)
110
111#define SDT_PROBE0(prov, mod, func, name) __nothing
112#define SDT_PROBE1(prov, mod, func, name, arg0) __nothing
113#define SDT_PROBE2(prov, mod, func, name, arg0, arg1) __nothing
114#define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) __nothing
115#define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \
116 __nothing
117#define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
118 __nothing
119#define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \
120 __nothing
121#define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \
122 arg6) \
123 __nothing
124
125#define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name)
126#define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0)
127#define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \
128 arg1, xarg1)
129#define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \
130 arg1, xarg1, arg2, xarg2)
131#define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \
132 arg1, xarg1, arg2, xarg2, arg3, xarg3)
133#define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \
134 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4)
135#define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \
136 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5)
137#define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \
138 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \
139 xarg6)
140
141#define DTRACE_PROBE(name) __nothing
142#define DTRACE_PROBE1(name, type0, arg0) __nothing
143#define DTRACE_PROBE2(name, type0, arg0, type1, arg1) __nothing
144#define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \
145 __nothing
146#define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3)\
147 __nothing
148#define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3,\
149 type4, arg4) \
150 __nothing
151
152#else
153
154#define SDT_PROVIDER_DEFINE(prov) \
155 struct sdt_provider sdt_provider_##prov[1] = { \
156 { #prov, { NULL, NULL }, 0, 0 } \
157 }; \
158 __link_set_add_data(sdt_providers_set, sdt_provider_##prov);
159
160#define SDT_PROVIDER_DECLARE(prov) \
161 extern struct sdt_provider sdt_provider_##prov[1]
162
163#define SDT_PROBE_DEFINE(prov, mod, func, name) \
164 struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] = { \
165 { sizeof(struct sdt_probe), sdt_provider_##prov, \
166 { NULL, NULL }, { NULL, NULL }, #mod, #func, #name, 0, 0, \
167 NULL } \
168 }; \
169 __link_set_add_data(sdt_probes_set, sdt_##prov##_##mod##_##func##_##name);
170
171#define SDT_PROBE_DECLARE(prov, mod, func, name) \
172 extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1]
173
174#define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \
175 if (__predict_false(sdt_##prov##_##mod##_##func##_##name->id)) \
176 (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \
177 (uintptr_t) (arg0), (uintptr_t) (arg1), (uintptr_t) (arg2), \
178 (uintptr_t) (arg3), (uintptr_t) (arg4)); \
179} while (0)
180
181#define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) \
182 static struct sdt_argtype sdta_##prov##_##mod##_##func##_##name##num[1] \
183 = { { num, type, xtype, { NULL, NULL }, \
184 sdt_##prov##_##mod##_##func##_##name } \
185 }; \
186 __link_set_add_data(sdt_argtypes_set, sdta_##prov##_##mod##_##func##_##name##num);
187
188#define SDT_PROBE_DEFINE0(prov, mod, func, name) \
189 SDT_PROBE_DEFINE(prov, mod, func, name)
190
191#define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \
192 SDT_PROBE_DEFINE(prov, mod, func, name); \
193 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL)
194
195#define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \
196 SDT_PROBE_DEFINE(prov, mod, func, name); \
197 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
198 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL)
199
200#define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\
201 SDT_PROBE_DEFINE(prov, mod, func, name); \
202 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
203 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
204 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL)
205
206#define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \
207 SDT_PROBE_DEFINE(prov, mod, func, name); \
208 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
209 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
210 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
211 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL)
212
213#define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
214 SDT_PROBE_DEFINE(prov, mod, func, name); \
215 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
216 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
217 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
218 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \
219 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL)
220
221#define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\
222 arg4, arg5) \
223 SDT_PROBE_DEFINE(prov, mod, func, name); \
224 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
225 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
226 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
227 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \
228 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \
229 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL)
230
231#define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\
232 arg4, arg5, arg6) \
233 SDT_PROBE_DEFINE(prov, mod, func, name); \
234 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
235 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
236 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
237 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \
238 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \
239 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \
240 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL)
241
242#define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \
243 SDT_PROBE_DEFINE(prov, mod, func, name)
244
245#define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \
246 SDT_PROBE_DEFINE(prov, mod, func, name); \
247 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0)
248
249#define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \
250 arg1, xarg1) \
251 SDT_PROBE_DEFINE(prov, mod, func, name); \
252 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
253 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1)
254
255#define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \
256 arg1, xarg1, arg2, xarg2) \
257 SDT_PROBE_DEFINE(prov, mod, func, name); \
258 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
259 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
260 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2)
261
262#define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \
263 arg1, xarg1, arg2, xarg2, arg3, xarg3) \
264 SDT_PROBE_DEFINE(prov, mod, func, name); \
265 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
266 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
267 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
268 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3)
269
270#define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \
271 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \
272 SDT_PROBE_DEFINE(prov, mod, func, name); \
273 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
274 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
275 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
276 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \
277 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4)
278
279#define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \
280 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \
281 SDT_PROBE_DEFINE(prov, mod, func, name); \
282 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
283 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
284 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
285 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \
286 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \
287 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5)
288
289#define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \
290 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \
291 xarg6) \
292 SDT_PROBE_DEFINE(prov, mod, func, name); \
293 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
294 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
295 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
296 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \
297 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \
298 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5); \
299 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6)
300
301#define SDT_PROBE0(prov, mod, func, name) \
302 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0)
303#define SDT_PROBE1(prov, mod, func, name, arg0) \
304 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0)
305#define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \
306 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0)
307#define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \
308 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0)
309#define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \
310 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0)
311#define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
312 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
313/* XXX: void * function casts */
314#define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \
315 do { \
316 if (__predict_false(sdt_##prov##_##mod##_##func##_##name->id)) \
317 __FPTRCAST(void (*)(uint32_t, uintptr_t, uintptr_t, \
318 uintptr_t, uintptr_t, uintptr_t, uintptr_t), \
319 sdt_probe_func)( \
320 sdt_##prov##_##mod##_##func##_##name->id, \
321 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \
322 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\
323 } while (0)
324#define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \
325 arg6) \
326 do { \
327 if (__predict_false(sdt_##prov##_##mod##_##func##_##name->id)) \
328 __FPTRCAST(void (*)(uint32_t, uintptr_t, uintptr_t, \
329 uintptr_t, uintptr_t, uintptr_t, uintptr_t, \
330 uintptr_t), sdt_probe_func)( \
331 sdt_##prov##_##mod##_##func##_##name->id, \
332 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \
333 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5, \
334 (uintptr_t)arg6); \
335 } while (0)
336
337#define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \
338 static SDT_PROBE_DEFINE(sdt, , , name); \
339 SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4);
340#define DTRACE_PROBE_IMPL_END } while (0)
341
342#define DTRACE_PROBE(name) \
343 DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \
344 DTRACE_PROBE_IMPL_END
345
346#define DTRACE_PROBE1(name, type0, arg0) \
347 DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \
348 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
349 DTRACE_PROBE_IMPL_END
350
351#define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \
352 DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \
353 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
354 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
355 DTRACE_PROBE_IMPL_END
356
357#define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \
358 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \
359 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
360 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
361 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \
362 DTRACE_PROBE_IMPL_END
363
364#define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \
365 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 0) \
366 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
367 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
368 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \
369 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \
370 DTRACE_PROBE_IMPL_END
371
372#define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \
373 type4, arg4) \
374 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \
375 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
376 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
377 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \
378 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \
379 SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \
380 DTRACE_PROBE_IMPL_END
381
382#endif /* KDTRACE_HOOKS */
383
384/*
385 * This type definition must match that of dtrace_probe. It is defined this
386 * way to avoid having to rely on CDDL code.
387 */
388typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1,
389 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4);
390
391/*
392 * The 'sdt' provider will set it to dtrace_probe when it loads.
393 */
394extern sdt_probe_func_t sdt_probe_func;
395
396struct sdt_probe;
397struct sdt_provider;
398struct linker_file;
399
400struct sdt_argtype {
401 int ndx; /* Argument index. */
402 const char *type; /* Argument type string. */
403 const char *xtype; /* Translated argument type. */
404 TAILQ_ENTRY(sdt_argtype)
405 argtype_entry; /* Argument type list entry. */
406 struct sdt_probe *probe; /* Ptr to the probe structure. */
407};
408
409struct sdt_probe {
410 int version; /* Set to sizeof(struct sdt_probe). */
411 struct sdt_provider *prov; /* Ptr to the provider structure. */
412 TAILQ_ENTRY(sdt_probe)
413 probe_entry; /* SDT probe list entry. */
414 TAILQ_HEAD(argtype_list_head, sdt_argtype) argtype_list;
415 const char *mod;
416 const char *func;
417 const char *name;
418 id_t id; /* DTrace probe ID. */
419 int n_args; /* Number of arguments. */
420 struct linker_file *sdtp_lf; /* Module in which we're defined. */
421};
422
423struct sdt_provider {
424 const char *name; /* Provider name. */
425 TAILQ_ENTRY(sdt_provider)
426 prov_entry; /* SDT provider list entry. */
427 uintptr_t id; /* DTrace provider ID. */
428 int sdt_refs; /* Number of module references. */
429};
430
431void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t,
432 uintptr_t);
433
434SDT_PROVIDER_DECLARE(sdt);
435
436void sdt_init(void *);
437void sdt_exit(void);
438
439
440#endif /* _KERNEL */
441
442#endif /* _SYS_SDT_H */