master
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
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 * Statically Defined Tracing (SDT) definitions.
28 *
29 */
30
31#ifndef _SYS_SDT_H
32#define _SYS_SDT_H
33
34#ifndef _KERNEL
35
36#define _DTRACE_VERSION 1
37
38#define DTRACE_PROBE(prov, name) { \
39 extern void __dtrace_##prov##___##name(void); \
40 __dtrace_##prov##___##name(); \
41}
42
43#define DTRACE_PROBE1(prov, name, arg1) { \
44 extern void __dtrace_##prov##___##name(unsigned long); \
45 __dtrace_##prov##___##name((unsigned long)arg1); \
46}
47
48#define DTRACE_PROBE2(prov, name, arg1, arg2) { \
49 extern void __dtrace_##prov##___##name(unsigned long, \
50 unsigned long); \
51 __dtrace_##prov##___##name((unsigned long)arg1, \
52 (unsigned long)arg2); \
53}
54
55#define DTRACE_PROBE3(prov, name, arg1, arg2, arg3) { \
56 extern void __dtrace_##prov##___##name(unsigned long, \
57 unsigned long, unsigned long); \
58 __dtrace_##prov##___##name((unsigned long)arg1, \
59 (unsigned long)arg2, (unsigned long)arg3); \
60}
61
62#define DTRACE_PROBE4(prov, name, arg1, arg2, arg3, arg4) { \
63 extern void __dtrace_##prov##___##name(unsigned long, \
64 unsigned long, unsigned long, unsigned long); \
65 __dtrace_##prov##___##name((unsigned long)arg1, \
66 (unsigned long)arg2, (unsigned long)arg3, \
67 (unsigned long)arg4); \
68}
69
70#define DTRACE_PROBE5(prov, name, arg1, arg2, arg3, arg4, arg5) { \
71 extern void __dtrace_##prov##___##name(unsigned long, \
72 unsigned long, unsigned long, unsigned long, unsigned long);\
73 __dtrace_##prov##___##name((unsigned long)arg1, \
74 (unsigned long)arg2, (unsigned long)arg3, \
75 (unsigned long)arg4, (unsigned long)arg5); \
76}
77
78#else /* _KERNEL */
79
80#include <sys/cdefs.h>
81#include <sys/linker_set.h>
82
83extern volatile bool sdt_probes_enabled;
84
85#ifndef KDTRACE_HOOKS
86
87#define __sdt_used __unused
88
89#define SDT_PROVIDER_DEFINE(prov)
90#define SDT_PROVIDER_DECLARE(prov)
91#define SDT_PROBE_DEFINE(prov, mod, func, name)
92#define SDT_PROBE_DECLARE(prov, mod, func, name)
93#define SDT_PROBES_ENABLED() 0
94#define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
95#define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype)
96
97#define SDT_PROBE_DEFINE0(prov, mod, func, name)
98#define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0)
99#define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1)
100#define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)
101#define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3)
102#define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
103#define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, \
104 arg3, arg4, arg5)
105#define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, \
106 arg3, arg4, arg5, arg6)
107
108#define SDT_PROBE0(prov, mod, func, name)
109#define SDT_PROBE1(prov, mod, func, name, arg0)
110#define SDT_PROBE2(prov, mod, func, name, arg0, arg1)
111#define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2)
112#define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3)
113#define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
114#define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5)
115#define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \
116 arg6)
117
118#define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name)
119#define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0)
120#define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \
121 arg1, xarg1)
122#define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \
123 arg1, xarg1, arg2, xarg2)
124#define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \
125 arg1, xarg1, arg2, xarg2, arg3, xarg3)
126#define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \
127 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4)
128#define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \
129 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5)
130#define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \
131 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \
132 xarg6)
133
134#define DTRACE_PROBE(name)
135#define DTRACE_PROBE1(name, type0, arg0)
136#define DTRACE_PROBE2(name, type0, arg0, type1, arg1)
137#define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2)
138#define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3)
139#define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3,\
140 type4, arg4)
141
142#else
143
144#define __sdt_used
145
146SET_DECLARE(sdt_providers_set, struct sdt_provider);
147SET_DECLARE(sdt_probes_set, struct sdt_probe);
148SET_DECLARE(sdt_argtypes_set, struct sdt_argtype);
149
150#define _SDT_PROBE_NAME(prov, mod, func, name) \
151 sdt_##prov##_##mod##_##func##_##name
152#define _SDT_PROVIDER_NAME(prov) \
153 sdt_provider_##prov
154
155#define SDT_PROVIDER_DEFINE(_prov) \
156 struct sdt_provider _SDT_PROVIDER_NAME(_prov)[1] = { \
157 [0] = { .name = #_prov }, \
158 }; \
159 DATA_SET(sdt_providers_set, _SDT_PROVIDER_NAME(_prov))
160
161#define SDT_PROVIDER_DECLARE(prov) \
162 extern struct sdt_provider _SDT_PROVIDER_NAME(prov)[1]
163
164#define SDT_PROBE_DEFINE(_prov, _mod, _func, _name) \
165 struct sdt_probe _SDT_PROBE_NAME(_prov, _mod, _func, _name)[1] = { \
166 [0] = { \
167 .version = sizeof(struct sdt_probe), \
168 .prov = _SDT_PROVIDER_NAME(_prov), \
169 .mod = #_mod, \
170 .func = #_func, \
171 .name = #_name, \
172 }, \
173 }; \
174 DATA_SET(sdt_probes_set, _SDT_PROBE_NAME(_prov, _mod, _func, _name))
175
176#define SDT_PROBE_DECLARE(prov, mod, func, name) \
177 extern struct sdt_probe _SDT_PROBE_NAME(prov, mod, func, name)[1]
178
179#define SDT_PROBES_ENABLED() __predict_false(sdt_probes_enabled)
180
181#define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \
182 if (SDT_PROBES_ENABLED()) { \
183 if (__predict_false(_SDT_PROBE_NAME(prov, mod, func, name)->id)) \
184 (*sdt_probe_func)(_SDT_PROBE_NAME(prov, mod, func, name)->id, \
185 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \
186 (uintptr_t) arg3, (uintptr_t) arg4); \
187 } \
188} while (0)
189
190#define SDT_PROBE_ARGTYPE(_prov, _mod, _func, _name, _num, _type, _xtype) \
191 static struct sdt_argtype \
192 sdta_##_prov##_##_mod##_##_func##_##_name##_num[1] = { \
193 [0] = { \
194 .ndx = _num, \
195 .type = _type, \
196 .xtype = _xtype, \
197 .probe = _SDT_PROBE_NAME(_prov, _mod, _func, _name), \
198 }, \
199 }; \
200 DATA_SET(sdt_argtypes_set, \
201 sdta_##_prov##_##_mod##_##_func##_##_name##_num);
202
203#define SDT_PROBE_DEFINE0(prov, mod, func, name) \
204 SDT_PROBE_DEFINE(prov, mod, func, name)
205
206#define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \
207 SDT_PROBE_DEFINE(prov, mod, func, name); \
208 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL)
209
210#define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \
211 SDT_PROBE_DEFINE(prov, mod, func, name); \
212 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
213 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL)
214
215#define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\
216 SDT_PROBE_DEFINE(prov, mod, func, name); \
217 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
218 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
219 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL)
220
221#define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \
222 SDT_PROBE_DEFINE(prov, mod, func, name); \
223 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
224 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
225 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
226 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL)
227
228#define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
229 SDT_PROBE_DEFINE(prov, mod, func, name); \
230 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
231 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
232 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
233 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \
234 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL)
235
236#define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\
237 arg4, arg5) \
238 SDT_PROBE_DEFINE(prov, mod, func, name); \
239 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
240 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
241 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
242 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \
243 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \
244 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL)
245
246#define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\
247 arg4, arg5, arg6) \
248 SDT_PROBE_DEFINE(prov, mod, func, name); \
249 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
250 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
251 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
252 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \
253 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \
254 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \
255 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL)
256
257#define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \
258 SDT_PROBE_DEFINE(prov, mod, func, name)
259
260#define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \
261 SDT_PROBE_DEFINE(prov, mod, func, name); \
262 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0)
263
264#define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \
265 arg1, xarg1) \
266 SDT_PROBE_DEFINE(prov, mod, func, name); \
267 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
268 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1)
269
270#define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \
271 arg1, xarg1, arg2, xarg2) \
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
277#define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \
278 arg1, xarg1, arg2, xarg2, arg3, xarg3) \
279 SDT_PROBE_DEFINE(prov, mod, func, name); \
280 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
281 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
282 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
283 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3)
284
285#define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \
286 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \
287 SDT_PROBE_DEFINE(prov, mod, func, name); \
288 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
289 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
290 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
291 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \
292 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4)
293
294#define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \
295 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \
296 SDT_PROBE_DEFINE(prov, mod, func, name); \
297 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
298 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
299 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
300 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \
301 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \
302 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5)
303
304#define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \
305 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \
306 xarg6) \
307 SDT_PROBE_DEFINE(prov, mod, func, name); \
308 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
309 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
310 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
311 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \
312 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \
313 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5); \
314 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6)
315
316#define SDT_PROBE0(prov, mod, func, name) \
317 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0)
318#define SDT_PROBE1(prov, mod, func, name, arg0) \
319 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0)
320#define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \
321 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0)
322#define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \
323 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0)
324#define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \
325 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0)
326#define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
327 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
328#define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \
329 do { \
330 if (_SDT_PROBE_NAME(prov, mod, func, name)->id) \
331 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \
332 uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \
333 _SDT_PROBE_NAME(prov, mod, func, name)->id, \
334 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \
335 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\
336 } while (0)
337#define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \
338 arg6) \
339 do { \
340 if (_SDT_PROBE_NAME(prov, mod, func, name)->id) \
341 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \
342 uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \
343 sdt_probe_func)( \
344 _SDT_PROBE_NAME(prov, mod, func, name)->id, \
345 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \
346 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5, \
347 (uintptr_t)arg6); \
348 } while (0)
349
350#define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \
351 static SDT_PROBE_DEFINE(sdt, , , name); \
352 SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4);
353#define DTRACE_PROBE_IMPL_END } while (0)
354
355#define DTRACE_PROBE(name) \
356 DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \
357 DTRACE_PROBE_IMPL_END
358
359#define DTRACE_PROBE1(name, type0, arg0) \
360 DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \
361 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
362 DTRACE_PROBE_IMPL_END
363
364#define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \
365 DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \
366 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
367 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
368 DTRACE_PROBE_IMPL_END
369
370#define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \
371 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \
372 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
373 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
374 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \
375 DTRACE_PROBE_IMPL_END
376
377#define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \
378 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 0) \
379 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
380 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
381 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \
382 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \
383 DTRACE_PROBE_IMPL_END
384
385#define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \
386 type4, arg4) \
387 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \
388 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
389 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
390 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \
391 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \
392 SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \
393 DTRACE_PROBE_IMPL_END
394
395#endif /* KDTRACE_HOOKS */
396
397/*
398 * This type definition must match that of dtrace_probe. It is defined this
399 * way to avoid having to rely on CDDL code.
400 */
401typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1,
402 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4);
403
404/*
405 * The 'sdt' provider will set it to dtrace_probe when it loads.
406 */
407extern sdt_probe_func_t sdt_probe_func;
408
409struct sdt_probe;
410struct sdt_provider;
411struct linker_file;
412
413struct sdt_argtype {
414 int ndx; /* Argument index. */
415 const char *type; /* Argument type string. */
416 const char *xtype; /* Translated argument type. */
417 TAILQ_ENTRY(sdt_argtype)
418 argtype_entry; /* Argument type list entry. */
419 struct sdt_probe *probe; /* Ptr to the probe structure. */
420};
421
422struct sdt_probe {
423 int version; /* Set to sizeof(struct sdt_probe). */
424 struct sdt_provider *prov; /* Ptr to the provider structure. */
425 TAILQ_ENTRY(sdt_probe)
426 probe_entry; /* SDT probe list entry. */
427 TAILQ_HEAD(, sdt_argtype) argtype_list;
428 const char *mod;
429 const char *func;
430 const char *name;
431 id_t id; /* DTrace probe ID. */
432 int n_args; /* Number of arguments. */
433 struct linker_file *sdtp_lf; /* Module in which we're defined. */
434};
435
436struct sdt_provider {
437 char *name; /* Provider name. */
438 TAILQ_ENTRY(sdt_provider)
439 prov_entry; /* SDT provider list entry. */
440 uintptr_t id; /* DTrace provider ID. */
441 int sdt_refs; /* Number of module references. */
442};
443
444void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t,
445 uintptr_t);
446
447SDT_PROVIDER_DECLARE(sdt);
448
449#endif /* _KERNEL */
450
451#endif /* _SYS_SDT_H */