Commit | Line | Data |
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d0dd2ecb | 1 | #include <linux/debugfs.h> |
c0edae1d MD |
2 | #include "lttng.h" |
3 | #include "lttng-types.h" | |
b13f3ebe | 4 | #include "../wrapper/vmalloc.h" /* for wrapper_vmalloc_sync_all() */ |
f3bc08c5 | 5 | #include "../wrapper/ringbuffer/frontend_types.h" |
e763dbf5 | 6 | #include "../ltt-events.h" |
6db3d13b | 7 | #include "../ltt-tracer-core.h" |
40652b65 | 8 | |
40652b65 | 9 | /* |
6db3d13b | 10 | * Macro declarations used for all stages. |
40652b65 MD |
11 | */ |
12 | ||
13 | /* | |
14 | * DECLARE_EVENT_CLASS can be used to add a generic function | |
15 | * handlers for events. That is, if all events have the same | |
16 | * parameters and just have distinct trace points. | |
17 | * Each tracepoint can be defined with DEFINE_EVENT and that | |
18 | * will map the DECLARE_EVENT_CLASS to the tracepoint. | |
19 | * | |
20 | * TRACE_EVENT is a one to one mapping between tracepoint and template. | |
21 | */ | |
6db3d13b | 22 | |
40652b65 MD |
23 | #undef TRACE_EVENT |
24 | #define TRACE_EVENT(name, proto, args, tstruct, assign, print) \ | |
25 | DECLARE_EVENT_CLASS(name, \ | |
26 | PARAMS(proto), \ | |
27 | PARAMS(args), \ | |
28 | PARAMS(tstruct), \ | |
29 | PARAMS(assign), \ | |
299338c8 MD |
30 | PARAMS(print)) \ |
31 | DEFINE_EVENT(name, name, PARAMS(proto), PARAMS(args)) | |
40652b65 | 32 | |
6db3d13b MD |
33 | #undef DEFINE_EVENT_PRINT |
34 | #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ | |
35 | DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) | |
36 | ||
37 | /* Callbacks are meaningless to LTTng. */ | |
38 | #undef TRACE_EVENT_FN | |
39 | #define TRACE_EVENT_FN(name, proto, args, tstruct, \ | |
40 | assign, print, reg, unreg) \ | |
41 | TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \ | |
42 | PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \ | |
43 | ||
f62b389e | 44 | /* |
c099397a | 45 | * Stage 1 of the trace events. |
f62b389e MD |
46 | * |
47 | * Create dummy trace calls for each events, verifying that the LTTng module | |
48 | * TRACE_EVENT headers match the kernel arguments. Will be optimized out by the | |
49 | * compiler. | |
50 | */ | |
51 | ||
52 | #include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */ | |
53 | ||
54 | #undef TP_PROTO | |
55 | #define TP_PROTO(args...) args | |
56 | ||
57 | #undef TP_ARGS | |
58 | #define TP_ARGS(args...) args | |
59 | ||
60 | #undef DEFINE_EVENT | |
61 | #define DEFINE_EVENT(_template, _name, _proto, _args) \ | |
7eb827f2 | 62 | void trace_##_name(_proto); |
f62b389e MD |
63 | |
64 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | |
65 | ||
6db3d13b | 66 | /* |
c099397a | 67 | * Stage 2 of the trace events. |
6db3d13b MD |
68 | * |
69 | * Create event field type metadata section. | |
70 | * Each event produce an array of fields. | |
71 | */ | |
72 | ||
73 | #include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */ | |
74 | ||
1d12cebd MD |
75 | /* Named field types must be defined in lttng-types.h */ |
76 | ||
40652b65 | 77 | #undef __field |
299338c8 | 78 | #define __field(_type, _item) \ |
c099397a MD |
79 | { \ |
80 | .name = #_item, \ | |
e0a7a7c4 | 81 | .type = __type_integer(_type, __BYTE_ORDER, 10), \ |
c099397a | 82 | }, |
40652b65 MD |
83 | |
84 | #undef __field_ext | |
6db3d13b | 85 | #define __field_ext(_type, _item, _filter_type) __field(_type, _item) |
40652b65 | 86 | |
c099397a MD |
87 | #undef __field_network |
88 | #define __field_network(_type, _item) \ | |
89 | { \ | |
90 | .name = #_item, \ | |
e0a7a7c4 | 91 | .type = __type_integer(_type, __BIG_ENDIAN, 10), \ |
c099397a MD |
92 | }, |
93 | ||
40652b65 | 94 | #undef __array |
299338c8 MD |
95 | #define __array(_type, _item, _length) \ |
96 | { \ | |
c099397a MD |
97 | .name = #_item, \ |
98 | .type = \ | |
99 | { \ | |
299338c8 | 100 | .atype = atype_array, \ |
c099397a MD |
101 | .u.array = \ |
102 | { \ | |
103 | .length = _length, \ | |
e0a7a7c4 | 104 | .elem_type = __type_integer(_type, __BYTE_ORDER, 10), \ |
c099397a | 105 | }, \ |
299338c8 MD |
106 | }, \ |
107 | }, | |
40652b65 MD |
108 | |
109 | #undef __dynamic_array | |
299338c8 MD |
110 | #define __dynamic_array(_type, _item, _length) \ |
111 | { \ | |
c099397a MD |
112 | .name = #_item, \ |
113 | .type = \ | |
114 | { \ | |
299338c8 | 115 | .atype = atype_sequence, \ |
c099397a MD |
116 | .u.sequence = \ |
117 | { \ | |
e0a7a7c4 MD |
118 | .length_type = __type_integer(u32, __BYTE_ORDER, 10), \ |
119 | .elem_type = __type_integer(_type, __BYTE_ORDER, 10), \ | |
c099397a | 120 | }, \ |
299338c8 MD |
121 | }, \ |
122 | }, | |
40652b65 MD |
123 | |
124 | #undef __string | |
1d12cebd | 125 | #define __string(_item, _src) \ |
299338c8 | 126 | { \ |
c099397a MD |
127 | .name = #_item, \ |
128 | .type = \ | |
129 | { \ | |
299338c8 | 130 | .atype = atype_string, \ |
c099397a | 131 | .u.basic.string.encoding = lttng_encode_UTF8, \ |
299338c8 MD |
132 | }, \ |
133 | }, | |
1d12cebd | 134 | |
40652b65 | 135 | #undef TP_STRUCT__entry |
1d12cebd MD |
136 | #define TP_STRUCT__entry(args...) args /* Only one used in this phase */ |
137 | ||
40652b65 | 138 | #undef DECLARE_EVENT_CLASS |
0d1d4002 MD |
139 | #define DECLARE_EVENT_CLASS(_name, _proto, _args, _tstruct, _assign, _print) \ |
140 | static const struct lttng_event_field __event_fields___##_name[] = { \ | |
141 | _tstruct \ | |
299338c8 MD |
142 | }; |
143 | ||
299338c8 MD |
144 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
145 | ||
c099397a MD |
146 | #undef __type_integer |
147 | ||
19c57fbf | 148 | /* |
c099397a | 149 | * Stage 3 of the trace events. |
19c57fbf MD |
150 | * |
151 | * Create probe callback prototypes. | |
152 | */ | |
153 | ||
154 | #include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */ | |
155 | ||
156 | #undef TP_PROTO | |
157 | #define TP_PROTO(args...) args | |
158 | ||
159 | #undef DECLARE_EVENT_CLASS | |
160 | #define DECLARE_EVENT_CLASS(_name, _proto, _args, _tstruct, _assign, _print) \ | |
161 | static void __event_probe__##_name(void *__data, _proto); | |
162 | ||
163 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | |
164 | ||
299338c8 | 165 | /* |
c099397a | 166 | * Stage 4 of the trace events. |
299338c8 MD |
167 | * |
168 | * Create an array of events. | |
169 | */ | |
170 | ||
299338c8 MD |
171 | /* Named field types must be defined in lttng-types.h */ |
172 | ||
6db3d13b | 173 | #include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */ |
299338c8 | 174 | |
d32a57a2 MD |
175 | #undef DEFINE_EVENT |
176 | #define DEFINE_EVENT(_template, _name, _proto, _args) \ | |
177 | { \ | |
178 | .fields = __event_fields___##_template, \ | |
179 | .name = #_name, \ | |
19c57fbf | 180 | .probe_callback = (void *) &__event_probe__##_template,\ |
d32a57a2 | 181 | .nr_fields = ARRAY_SIZE(__event_fields___##_template), \ |
6db3d13b | 182 | }, |
40652b65 | 183 | |
d0dd2ecb MD |
184 | #define TP_ID1(_token, _system) _token##_system |
185 | #define TP_ID(_token, _system) TP_ID1(_token, _system) | |
40652b65 | 186 | |
d0dd2ecb | 187 | static const struct lttng_event_desc TP_ID(__event_desc___, TRACE_SYSTEM)[] = { |
40652b65 | 188 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
299338c8 MD |
189 | }; |
190 | ||
d0dd2ecb MD |
191 | #undef TP_ID1 |
192 | #undef TP_ID | |
193 | ||
85a9ca7f MD |
194 | |
195 | /* | |
c099397a | 196 | * Stage 5 of the trace events. |
85a9ca7f MD |
197 | * |
198 | * Create a toplevel descriptor for the whole probe. | |
199 | */ | |
200 | ||
201 | #define TP_ID1(_token, _system) _token##_system | |
202 | #define TP_ID(_token, _system) TP_ID1(_token, _system) | |
203 | ||
204 | /* non-const because list head will be modified when registered. */ | |
205 | static struct lttng_probe_desc TP_ID(__probe_desc___, TRACE_SYSTEM) = { | |
206 | .event_desc = TP_ID(__event_desc___, TRACE_SYSTEM), | |
207 | .nr_events = ARRAY_SIZE(TP_ID(__event_desc___, TRACE_SYSTEM)), | |
208 | }; | |
209 | ||
210 | #undef TP_ID1 | |
211 | #undef TP_ID | |
212 | ||
d0dd2ecb | 213 | /* |
c099397a | 214 | * Stage 6 of the trace events. |
40652b65 MD |
215 | * |
216 | * Create static inline function that calculates event size. | |
217 | */ | |
218 | ||
6db3d13b | 219 | #include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */ |
40652b65 | 220 | |
6db3d13b MD |
221 | /* Named field types must be defined in lttng-types.h */ |
222 | ||
223 | #undef __field | |
85a80742 | 224 | #define __field(_type, _item) \ |
d793d5e1 | 225 | __event_len += lib_ring_buffer_align(__event_len, ltt_alignof(_type)); \ |
0d1d4002 | 226 | __event_len += sizeof(_type); |
6db3d13b MD |
227 | |
228 | #undef __field_ext | |
229 | #define __field_ext(_type, _item, _filter_type) __field(_type, _item) | |
230 | ||
231 | #undef __array | |
85a80742 | 232 | #define __array(_type, _item, _length) \ |
d793d5e1 | 233 | __event_len += lib_ring_buffer_align(__event_len, ltt_alignof(_type)); \ |
0d1d4002 | 234 | __event_len += sizeof(_type) * (_length); |
6db3d13b MD |
235 | |
236 | #undef __dynamic_array | |
85a80742 | 237 | #define __dynamic_array(_type, _item, _length) \ |
d793d5e1 | 238 | __event_len += lib_ring_buffer_align(__event_len, ltt_alignof(u32)); \ |
85a80742 | 239 | __event_len += sizeof(u32); \ |
d793d5e1 | 240 | __event_len += lib_ring_buffer_align(__event_len, ltt_alignof(_type)); \ |
0d1d4002 | 241 | __event_len += sizeof(_type) * (_length); |
6db3d13b MD |
242 | |
243 | #undef __string | |
85a80742 | 244 | #define __string(_item, _src) \ |
0d1d4002 MD |
245 | __event_len += __dynamic_len[__dynamic_len_idx++] = strlen(_src) + 1; |
246 | ||
247 | #undef TP_PROTO | |
248 | #define TP_PROTO(args...) args | |
6db3d13b MD |
249 | |
250 | #undef TP_STRUCT__entry | |
0d1d4002 | 251 | #define TP_STRUCT__entry(args...) args |
6db3d13b MD |
252 | |
253 | #undef DECLARE_EVENT_CLASS | |
0d1d4002 MD |
254 | #define DECLARE_EVENT_CLASS(_name, _proto, _args, _tstruct, _assign, _print) \ |
255 | static inline size_t __event_get_size__##_name(size_t *__dynamic_len, _proto) \ | |
256 | { \ | |
257 | size_t __event_len = 0; \ | |
258 | unsigned int __dynamic_len_idx = 0; \ | |
259 | \ | |
260 | if (0) \ | |
261 | (void) __dynamic_len_idx; /* don't warn if unused */ \ | |
262 | _tstruct \ | |
263 | return __event_len; \ | |
6db3d13b | 264 | } |
40652b65 MD |
265 | |
266 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | |
267 | ||
268 | /* | |
c099397a | 269 | * Stage 7 of the trace events. |
e763dbf5 MD |
270 | * |
271 | * Create static inline function that calculates event payload alignment. | |
272 | */ | |
273 | ||
274 | #include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */ | |
275 | ||
276 | /* Named field types must be defined in lttng-types.h */ | |
277 | ||
278 | #undef __field | |
279 | #define __field(_type, _item) \ | |
d793d5e1 | 280 | __event_align = max_t(size_t, __event_align, ltt_alignof(_type)); |
e763dbf5 MD |
281 | |
282 | #undef __field_ext | |
283 | #define __field_ext(_type, _item, _filter_type) __field(_type, _item) | |
284 | ||
285 | #undef __array | |
286 | #define __array(_type, _item, _length) \ | |
d793d5e1 | 287 | __event_align = max_t(size_t, __event_align, ltt_alignof(_type)); |
e763dbf5 MD |
288 | |
289 | #undef __dynamic_array | |
290 | #define __dynamic_array(_type, _item, _length) \ | |
d793d5e1 MD |
291 | __event_align = max_t(size_t, __event_align, ltt_alignof(u32)); \ |
292 | __event_align = max_t(size_t, __event_align, ltt_alignof(_type)); | |
e763dbf5 MD |
293 | |
294 | #undef __string | |
295 | #define __string(_item, _src) | |
296 | ||
297 | #undef TP_PROTO | |
298 | #define TP_PROTO(args...) args | |
299 | ||
300 | #undef TP_STRUCT__entry | |
301 | #define TP_STRUCT__entry(args...) args | |
302 | ||
303 | #undef DECLARE_EVENT_CLASS | |
304 | #define DECLARE_EVENT_CLASS(_name, _proto, _args, _tstruct, _assign, _print) \ | |
305 | static inline size_t __event_get_align__##_name(_proto) \ | |
306 | { \ | |
307 | size_t __event_align = 1; \ | |
308 | _tstruct \ | |
309 | return __event_align; \ | |
310 | } | |
311 | ||
312 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | |
313 | ||
314 | ||
e763dbf5 | 315 | /* |
c099397a | 316 | * Stage 8 of the trace events. |
40652b65 | 317 | * |
3c4ffab9 MD |
318 | * Create structure declaration that allows the "assign" macros to access the |
319 | * field types. | |
320 | */ | |
321 | ||
322 | #include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */ | |
323 | ||
324 | /* Named field types must be defined in lttng-types.h */ | |
325 | ||
326 | #undef __field | |
327 | #define __field(_type, _item) _type _item; | |
328 | ||
329 | #undef __field_ext | |
330 | #define __field_ext(_type, _item, _filter_type) __field(_type, _item) | |
331 | ||
332 | #undef __array | |
333 | #define __array(_type, _item, _length) _type _item; | |
334 | ||
335 | #undef __dynamic_array | |
336 | #define __dynamic_array(_type, _item, _length) _type _item; | |
337 | ||
338 | #undef __string | |
339 | #define __string(_item, _src) char _item; | |
340 | ||
341 | #undef TP_STRUCT__entry | |
342 | #define TP_STRUCT__entry(args...) args | |
343 | ||
344 | #undef DECLARE_EVENT_CLASS | |
345 | #define DECLARE_EVENT_CLASS(_name, _proto, _args, _tstruct, _assign, _print) \ | |
346 | struct __event_typemap__##_name { \ | |
347 | _tstruct \ | |
348 | }; | |
349 | ||
350 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | |
351 | ||
352 | ||
353 | /* | |
c099397a | 354 | * Stage 9 of the trace events. |
3c4ffab9 | 355 | * |
40652b65 MD |
356 | * Create the probe function : call even size calculation and write event data |
357 | * into the buffer. | |
e763dbf5 | 358 | * |
67e5e60c MD |
359 | * We use both the field and assignment macros to write the fields in the order |
360 | * defined in the field declaration. The field declarations control the | |
361 | * execution order, jumping to the appropriate assignment block. | |
40652b65 MD |
362 | */ |
363 | ||
e763dbf5 MD |
364 | #include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */ |
365 | ||
366 | #undef __field | |
367 | #define __field(_type, _item) \ | |
e763dbf5 MD |
368 | goto __assign_##_item; \ |
369 | __end_field_##_item: | |
40652b65 | 370 | |
e763dbf5 MD |
371 | #undef __field_ext |
372 | #define __field_ext(_type, _item, _filter_type) __field(_type, _item) | |
40652b65 | 373 | |
e763dbf5 MD |
374 | #undef __array |
375 | #define __array(_type, _item, _length) \ | |
e763dbf5 MD |
376 | goto __assign_##_item; \ |
377 | __end_field_##_item: | |
40652b65 | 378 | |
e763dbf5 MD |
379 | #undef __dynamic_array |
380 | #define __dynamic_array(_type, _item, _length) \ | |
e763dbf5 MD |
381 | goto __assign_##_item##_1; \ |
382 | __end_field_##_item##_1: \ | |
e763dbf5 MD |
383 | goto __assign_##_item##_2; \ |
384 | __end_field_##_item##_2: | |
40652b65 | 385 | |
e763dbf5 MD |
386 | #undef __string |
387 | #define __string(_item, _src) \ | |
388 | goto __assign_##_item; \ | |
389 | __end_field_##_item: | |
390 | ||
391 | /* | |
392 | * Macros mapping tp_assign() to "=", tp_memcpy() to memcpy() and tp_strcpy() to | |
393 | * strcpy(). | |
394 | */ | |
395 | #undef tp_assign | |
396 | #define tp_assign(dest, src) \ | |
397 | __assign_##dest: \ | |
398 | { \ | |
3c4ffab9 | 399 | __typeof__(__typemap.dest) __tmp = (src); \ |
d793d5e1 | 400 | lib_ring_buffer_align_ctx(&ctx, ltt_alignof(__tmp)); \ |
3c4ffab9 | 401 | __chan->ops->event_write(&ctx, &__tmp, sizeof(__tmp)); \ |
e763dbf5 MD |
402 | } \ |
403 | goto __end_field_##dest; | |
404 | ||
405 | #undef tp_memcpy | |
406 | #define tp_memcpy(dest, src, len) \ | |
407 | __assign_##dest: \ | |
d793d5e1 MD |
408 | if (0) \ |
409 | (void) __typemap.dest; \ | |
410 | lib_ring_buffer_align_ctx(&ctx, ltt_alignof(__typemap.dest)); \ | |
e763dbf5 MD |
411 | __chan->ops->event_write(&ctx, src, len); \ |
412 | goto __end_field_##dest; | |
413 | ||
414 | #undef tp_memcpy_dyn | |
415 | #define tp_memcpy_dyn(dest, src, len) \ | |
416 | __assign_##dest##_1: \ | |
417 | { \ | |
3c4ffab9 | 418 | u32 __tmpl = (len); \ |
d793d5e1 | 419 | lib_ring_buffer_align_ctx(&ctx, ltt_alignof(u32)); \ |
e763dbf5 MD |
420 | __chan->ops->event_write(&ctx, &__tmpl, sizeof(u32)); \ |
421 | } \ | |
422 | goto __end_field_##dest##_1; \ | |
423 | __assign_##dest##_2: \ | |
d793d5e1 | 424 | lib_ring_buffer_align_ctx(&ctx, ltt_alignof(__typemap.dest)); \ |
e763dbf5 MD |
425 | __chan->ops->event_write(&ctx, src, len); \ |
426 | goto __end_field_##dest##_2; | |
427 | ||
428 | #undef tp_strcpy | |
429 | #define tp_strcpy(dest, src) \ | |
3c4ffab9 | 430 | tp_memcpy(dest, src, __get_dynamic_array_len(dest)) |
40652b65 | 431 | |
e763dbf5 MD |
432 | /* Named field types must be defined in lttng-types.h */ |
433 | ||
434 | #undef __get_str | |
435 | #define __get_str(field) field | |
436 | ||
437 | #undef __get_dynamic_array | |
438 | #define __get_dynamic_array(field) field | |
439 | ||
440 | /* Beware: this get len actually consumes the len value */ | |
441 | #undef __get_dynamic_array_len | |
442 | #define __get_dynamic_array_len(field) __dynamic_len[__dynamic_len_idx++] | |
443 | ||
444 | #undef TP_PROTO | |
445 | #define TP_PROTO(args...) args | |
446 | ||
447 | #undef TP_ARGS | |
448 | #define TP_ARGS(args...) args | |
449 | ||
450 | #undef TP_STRUCT__entry | |
451 | #define TP_STRUCT__entry(args...) args | |
452 | ||
453 | #undef TP_fast_assign | |
454 | #define TP_fast_assign(args...) args | |
455 | ||
456 | #undef DECLARE_EVENT_CLASS | |
457 | #define DECLARE_EVENT_CLASS(_name, _proto, _args, _tstruct, _assign, _print) \ | |
458 | static void __event_probe__##_name(void *__data, _proto) \ | |
459 | { \ | |
460 | struct ltt_event *__event = __data; \ | |
461 | struct ltt_channel *__chan = __event->chan; \ | |
462 | struct lib_ring_buffer_ctx ctx; \ | |
463 | size_t __event_len, __event_align; \ | |
464 | size_t __dynamic_len_idx = 0; \ | |
465 | size_t __dynamic_len[ARRAY_SIZE(__event_fields___##_name)]; \ | |
3c4ffab9 | 466 | struct __event_typemap__##_name __typemap; \ |
e763dbf5 MD |
467 | int __ret; \ |
468 | \ | |
469 | if (0) \ | |
470 | (void) __dynamic_len_idx; /* don't warn if unused */ \ | |
52fc2e1f MD |
471 | if (!ACCESS_ONCE(__chan->session->active)) \ |
472 | return; \ | |
e763dbf5 MD |
473 | __event_len = __event_get_size__##_name(__dynamic_len, _args); \ |
474 | __event_align = __event_get_align__##_name(_args); \ | |
475 | lib_ring_buffer_ctx_init(&ctx, __chan->chan, NULL, __event_len, \ | |
476 | __event_align, -1); \ | |
477 | __ret = __chan->ops->event_reserve(&ctx); \ | |
478 | if (__ret < 0) \ | |
479 | return; \ | |
480 | /* Control code (field ordering) */ \ | |
481 | _tstruct \ | |
482 | __chan->ops->event_commit(&ctx); \ | |
483 | return; \ | |
484 | /* Copy code, steered by control code */ \ | |
485 | _assign \ | |
486 | } | |
487 | ||
488 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | |
489 | ||
3afe7aac | 490 | /* |
c099397a | 491 | * Stage 10 of the trace events. |
3afe7aac MD |
492 | * |
493 | * Register/unregister probes at module load/unload. | |
494 | */ | |
495 | ||
496 | #include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */ | |
497 | ||
498 | #define TP_ID1(_token, _system) _token##_system | |
499 | #define TP_ID(_token, _system) TP_ID1(_token, _system) | |
500 | #define module_init_eval1(_token, _system) module_init(_token##_system) | |
501 | #define module_init_eval(_token, _system) module_init_eval1(_token, _system) | |
502 | #define module_exit_eval1(_token, _system) module_exit(_token##_system) | |
503 | #define module_exit_eval(_token, _system) module_exit_eval1(_token, _system) | |
504 | ||
3afe7aac MD |
505 | static int TP_ID(__lttng_events_init__, TRACE_SYSTEM)(void) |
506 | { | |
6d2a620c | 507 | wrapper_vmalloc_sync_all(); |
85a9ca7f | 508 | return ltt_probe_register(&TP_ID(__probe_desc___, TRACE_SYSTEM)); |
3afe7aac MD |
509 | } |
510 | ||
511 | module_init_eval(__lttng_events_init__, TRACE_SYSTEM); | |
512 | ||
3afe7aac MD |
513 | static void TP_ID(__lttng_events_exit__, TRACE_SYSTEM)(void) |
514 | { | |
85a9ca7f | 515 | ltt_probe_unregister(&TP_ID(__probe_desc___, TRACE_SYSTEM)); |
3afe7aac MD |
516 | } |
517 | ||
518 | module_exit_eval(__lttng_events_exit__, TRACE_SYSTEM); | |
519 | ||
520 | #undef module_init_eval | |
521 | #undef module_exit_eval | |
522 | #undef TP_ID1 | |
523 | #undef TP_ID |