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