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Implement array and sequence bitfields
[lttng-modules.git] / probes / lttng-events.h
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1/*
2 * lttng-events.h
3 *
4 * Copyright (C) 2009 Steven Rostedt <rostedt@goodmis.org>
5 * Copyright (C) 2009-2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; only
10 * version 2.1 of the License.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#include <linux/uaccess.h>
23#include <linux/debugfs.h>
24#include <linux/rculist.h>
25#include <asm/byteorder.h>
26#include "lttng.h"
27#include "lttng-types.h"
28#include "lttng-probe-user.h"
29#include "../wrapper/vmalloc.h" /* for wrapper_vmalloc_sync_all() */
30#include "../wrapper/ringbuffer/frontend_types.h"
31#include "../wrapper/rcu.h"
32#include "../lttng-events.h"
33#include "../lttng-tracer-core.h"
34
35/*
36 * Macro declarations used for all stages.
37 */
38
39/*
40 * LTTng name mapping macros. LTTng remaps some of the kernel events to
41 * enforce name-spacing.
42 */
43#undef LTTNG_TRACEPOINT_EVENT_MAP
44#define LTTNG_TRACEPOINT_EVENT_MAP(name, map, proto, args, fields) \
45 LTTNG_TRACEPOINT_EVENT_CLASS(map, \
46 PARAMS(proto), \
47 PARAMS(args), \
48 PARAMS(fields)) \
49 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(map, name, map, PARAMS(proto), PARAMS(args))
50
51#undef LTTNG_TRACEPOINT_EVENT_MAP_NOARGS
52#define LTTNG_TRACEPOINT_EVENT_MAP_NOARGS(name, map, fields) \
53 LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(map, \
54 PARAMS(fields)) \
55 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS(map, name, map)
56
57#undef LTTNG_TRACEPOINT_EVENT_CODE_MAP
58#define LTTNG_TRACEPOINT_EVENT_CODE_MAP(name, map, proto, args, _locvar, _code, fields) \
59 LTTNG_TRACEPOINT_EVENT_CLASS_CODE(map, \
60 PARAMS(proto), \
61 PARAMS(args), \
62 PARAMS(_locvar), \
63 PARAMS(_code), \
64 PARAMS(fields)) \
65 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(map, name, map, PARAMS(proto), PARAMS(args))
66
67#undef LTTNG_TRACEPOINT_EVENT_CODE
68#define LTTNG_TRACEPOINT_EVENT_CODE(name, proto, args, _locvar, _code, fields) \
69 LTTNG_TRACEPOINT_EVENT_CODE_MAP(name, name, \
70 PARAMS(proto), \
71 PARAMS(args), \
72 PARAMS(_locvar), \
73 PARAMS(_code), \
74 PARAMS(fields))
75
76/*
77 * LTTNG_TRACEPOINT_EVENT_CLASS can be used to add a generic function
78 * handlers for events. That is, if all events have the same parameters
79 * and just have distinct trace points. Each tracepoint can be defined
80 * with LTTNG_TRACEPOINT_EVENT_INSTANCE and that will map the
81 * LTTNG_TRACEPOINT_EVENT_CLASS to the tracepoint.
82 *
83 * LTTNG_TRACEPOINT_EVENT is a one to one mapping between tracepoint and
84 * template.
85 */
86
87#undef LTTNG_TRACEPOINT_EVENT
88#define LTTNG_TRACEPOINT_EVENT(name, proto, args, fields) \
89 LTTNG_TRACEPOINT_EVENT_MAP(name, name, \
90 PARAMS(proto), \
91 PARAMS(args), \
92 PARAMS(fields))
93
94#undef LTTNG_TRACEPOINT_EVENT_NOARGS
95#define LTTNG_TRACEPOINT_EVENT_NOARGS(name, fields) \
96 LTTNG_TRACEPOINT_EVENT_MAP_NOARGS(name, name, PARAMS(fields))
97
98#undef LTTNG_TRACEPOINT_EVENT_INSTANCE
99#define LTTNG_TRACEPOINT_EVENT_INSTANCE(template, name, proto, args) \
100 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(template, name, name, PARAMS(proto), PARAMS(args))
101
102#undef LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS
103#define LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(template, name) \
104 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS(template, name, name)
105
106#undef LTTNG_TRACEPOINT_EVENT_CLASS
107#define LTTNG_TRACEPOINT_EVENT_CLASS(_name, _proto, _args, _fields) \
108 LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, PARAMS(_proto), PARAMS(_args), , , \
109 PARAMS(_fields))
110
111#undef LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS
112#define LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
113 LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, , , PARAMS(_fields))
114
115
116/*
117 * Stage 1 of the trace events.
118 *
119 * Create dummy trace calls for each events, verifying that the LTTng module
120 * instrumentation headers match the kernel arguments. Will be optimized
121 * out by the compiler.
122 */
123
124/* Reset all macros within TRACEPOINT_EVENT */
125#include "lttng-events-reset.h"
126
127#undef TP_PROTO
128#define TP_PROTO(...) __VA_ARGS__
129
130#undef TP_ARGS
131#define TP_ARGS(...) __VA_ARGS__
132
133#undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP
134#define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(_template, _name, _map, _proto, _args) \
135void trace_##_name(_proto);
136
137#undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS
138#define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS(_template, _name, _map) \
139void trace_##_name(void);
140
141#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
142
143/*
144 * Stage 1.1 of the trace events.
145 *
146 * Create dummy trace prototypes for each event class, and for each used
147 * template. This will allow checking whether the prototypes from the
148 * class and the instance using the class actually match.
149 */
150
151#include "lttng-events-reset.h" /* Reset all macros within TRACE_EVENT */
152
153#undef TP_PROTO
154#define TP_PROTO(...) __VA_ARGS__
155
156#undef TP_ARGS
157#define TP_ARGS(...) __VA_ARGS__
158
159#undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP
160#define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(_template, _name, _map, _proto, _args) \
161void __event_template_proto___##_template(_proto);
162
163#undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS
164#define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS(_template, _name, _map) \
165void __event_template_proto___##_template(void);
166
167#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
168#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code, _fields) \
169void __event_template_proto___##_name(_proto);
170
171#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
172#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code, _fields) \
173void __event_template_proto___##_name(void);
174
175#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
176
177/*
178 * Stage 2 of the trace events.
179 *
180 * Create event field type metadata section.
181 * Each event produce an array of fields.
182 */
183
184/* Reset all macros within TRACEPOINT_EVENT */
185#include "lttng-events-reset.h"
186#include "lttng-events-write.h"
187#include "lttng-events-nowrite.h"
188
189#undef _ctf_integer_ext
190#define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _user, _nowrite) \
191 { \
192 .name = #_item, \
193 .type = __type_integer(_type, 0, 0, -1, _byte_order, _base, none),\
194 .nowrite = _nowrite, \
195 .user = _user, \
196 },
197
198#undef _ctf_array_encoded
199#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _user, _nowrite) \
200 { \
201 .name = #_item, \
202 .type = \
203 { \
204 .atype = atype_array, \
205 .u = \
206 { \
207 .array = \
208 { \
209 .elem_type = __type_integer(_type, 0, 0, 0, __BYTE_ORDER, 10, _encoding), \
210 .length = _length, \
211 } \
212 } \
213 }, \
214 .nowrite = _nowrite, \
215 .user = _user, \
216 },
217
218#undef _ctf_array_bitfield
219#define _ctf_array_bitfield(_type, _item, _src, _length, _user, _nowrite) \
220 { \
221 .name = #_item, \
222 .type = \
223 { \
224 .atype = atype_array, \
225 .u = \
226 { \
227 .array = \
228 { \
229 .elem_type = __type_integer(_type, 1, 1, 0, __LITTLE_ENDIAN, 10, none), \
230 .length = (_length) * sizeof(_type) * CHAR_BIT, \
231 .elem_alignment = lttng_alignof(_type), \
232 } \
233 } \
234 }, \
235 .nowrite = _nowrite, \
236 .user = _user, \
237 },
238
239
240#undef _ctf_sequence_encoded
241#define _ctf_sequence_encoded(_type, _item, _src, \
242 _length_type, _src_length, _encoding, \
243 _byte_order, _base, _user, _nowrite) \
244 { \
245 .name = #_item, \
246 .type = \
247 { \
248 .atype = atype_sequence, \
249 .u = \
250 { \
251 .sequence = \
252 { \
253 .length_type = __type_integer(_length_type, 0, 0, 0, __BYTE_ORDER, 10, none), \
254 .elem_type = __type_integer(_type, 0, 0, -1, _byte_order, _base, _encoding), \
255 }, \
256 }, \
257 }, \
258 .nowrite = _nowrite, \
259 .user = _user, \
260 },
261
262#undef _ctf_sequence_bitfield
263#define _ctf_sequence_bitfield(_type, _item, _src, \
264 _length_type, _src_length, \
265 _user, _nowrite) \
266 { \
267 .name = #_item, \
268 .type = \
269 { \
270 .atype = atype_sequence, \
271 .u = \
272 { \
273 .sequence = \
274 { \
275 .length_type = __type_integer(_length_type, 0, 0, 0, __BYTE_ORDER, 10, none), \
276 .elem_type = __type_integer(_type, 1, 1, 0, __LITTLE_ENDIAN, 10, none), \
277 .elem_alignment = lttng_alignof(_type), \
278 }, \
279 }, \
280 }, \
281 .nowrite = _nowrite, \
282 .user = _user, \
283 },
284
285#undef _ctf_string
286#define _ctf_string(_item, _src, _user, _nowrite) \
287 { \
288 .name = #_item, \
289 .type = \
290 { \
291 .atype = atype_string, \
292 .u = \
293 { \
294 .basic = { .string = { .encoding = lttng_encode_UTF8 } } \
295 }, \
296 }, \
297 .nowrite = _nowrite, \
298 .user = _user, \
299 },
300
301#undef TP_FIELDS
302#define TP_FIELDS(...) __VA_ARGS__ /* Only one used in this phase */
303
304#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
305#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code, _fields) \
306 static const struct lttng_event_field __event_fields___##_name[] = { \
307 _fields \
308 };
309
310#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
311#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code, _fields) \
312 LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code, PARAMS(_fields))
313
314#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
315
316/*
317 * Stage 3 of the trace events.
318 *
319 * Create probe callback prototypes.
320 */
321
322/* Reset all macros within TRACEPOINT_EVENT */
323#include "lttng-events-reset.h"
324
325#undef TP_PROTO
326#define TP_PROTO(...) __VA_ARGS__
327
328#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
329#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code, _fields) \
330static void __event_probe__##_name(void *__data, _proto);
331
332#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
333#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code, _fields) \
334static void __event_probe__##_name(void *__data);
335
336#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
337
338/*
339 * Stage 4 of the trace events.
340 *
341 * Create static inline function that calculates event size.
342 */
343
344/* Reset all macros within TRACEPOINT_EVENT */
345#include "lttng-events-reset.h"
346#include "lttng-events-write.h"
347
348#undef _ctf_integer_ext
349#define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _user, _nowrite) \
350 __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
351 __event_len += sizeof(_type);
352
353#undef _ctf_array_encoded
354#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _user, _nowrite) \
355 __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
356 __event_len += sizeof(_type) * (_length);
357
358#undef _ctf_array_bitfield
359#define _ctf_array_bitfield(_type, _item, _src, _length, _user, _nowrite) \
360 _ctf_array_encoded(_type, _item, _src, _length, none, _user, _nowrite)
361
362#undef _ctf_sequence_encoded
363#define _ctf_sequence_encoded(_type, _item, _src, _length_type, \
364 _src_length, _encoding, _byte_order, _base, _user, _nowrite) \
365 __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_length_type)); \
366 __event_len += sizeof(_length_type); \
367 __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
368 __dynamic_len[__dynamic_len_idx] = (_src_length); \
369 __event_len += sizeof(_type) * __dynamic_len[__dynamic_len_idx]; \
370 __dynamic_len_idx++;
371
372#undef _ctf_sequence_bitfield
373#define _ctf_sequence_bitfield(_type, _item, _src, \
374 _length_type, _src_length, \
375 _user, _nowrite) \
376 _ctf_sequence_encoded(_type, _item, _src, _length_type, _src_length, \
377 none, __LITTLE_ENDIAN, 10, _user, _nowrite)
378
379/*
380 * ctf_user_string includes \0. If returns 0, it faulted, so we set size to
381 * 1 (\0 only).
382 */
383#undef _ctf_string
384#define _ctf_string(_item, _src, _user, _nowrite) \
385 if (_user) \
386 __event_len += __dynamic_len[__dynamic_len_idx++] = \
387 max_t(size_t, lttng_strlen_user_inatomic(_src), 1); \
388 else \
389 __event_len += __dynamic_len[__dynamic_len_idx++] = \
390 strlen(_src) + 1;
391
392#undef TP_PROTO
393#define TP_PROTO(...) __VA_ARGS__
394
395#undef TP_FIELDS
396#define TP_FIELDS(...) __VA_ARGS__
397
398#undef TP_locvar
399#define TP_locvar(...) __VA_ARGS__
400
401#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
402#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code, _fields) \
403static inline size_t __event_get_size__##_name(size_t *__dynamic_len, \
404 void *__tp_locvar, _proto) \
405{ \
406 size_t __event_len = 0; \
407 unsigned int __dynamic_len_idx __attribute__((unused)) = 0; \
408 struct { _locvar } *tp_locvar __attribute__((unused)) = __tp_locvar; \
409 \
410 _fields \
411 return __event_len; \
412}
413
414#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
415#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code, _fields) \
416static inline size_t __event_get_size__##_name(size_t *__dynamic_len, \
417 void *__tp_locvar) \
418{ \
419 size_t __event_len = 0; \
420 unsigned int __dynamic_len_idx __attribute__((unused)) = 0; \
421 struct { _locvar } *tp_locvar __attribute__((unused)) = __tp_locvar; \
422 \
423 _fields \
424 return __event_len; \
425}
426
427#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
428
429
430/*
431 * Stage 4.1 of tracepoint event generation.
432 *
433 * Create static inline function that layout the filter stack data.
434 * We make both write and nowrite data available to the filter.
435 */
436
437/* Reset all macros within TRACEPOINT_EVENT */
438#include "lttng-events-reset.h"
439#include "lttng-events-write.h"
440#include "lttng-events-nowrite.h"
441
442#undef _ctf_integer_ext_fetched
443#define _ctf_integer_ext_fetched(_type, _item, _src, _byte_order, _base, _nowrite) \
444 if (lttng_is_signed_type(_type)) { \
445 int64_t __ctf_tmp_int64; \
446 switch (sizeof(_type)) { \
447 case 1: \
448 { \
449 union { _type t; int8_t v; } __tmp = { (_type) (_src) }; \
450 __ctf_tmp_int64 = (int64_t) __tmp.v; \
451 break; \
452 } \
453 case 2: \
454 { \
455 union { _type t; int16_t v; } __tmp = { (_type) (_src) }; \
456 __ctf_tmp_int64 = (int64_t) __tmp.v; \
457 break; \
458 } \
459 case 4: \
460 { \
461 union { _type t; int32_t v; } __tmp = { (_type) (_src) }; \
462 __ctf_tmp_int64 = (int64_t) __tmp.v; \
463 break; \
464 } \
465 case 8: \
466 { \
467 union { _type t; int64_t v; } __tmp = { (_type) (_src) }; \
468 __ctf_tmp_int64 = (int64_t) __tmp.v; \
469 break; \
470 } \
471 default: \
472 BUG_ON(1); \
473 }; \
474 memcpy(__stack_data, &__ctf_tmp_int64, sizeof(int64_t)); \
475 } else { \
476 uint64_t __ctf_tmp_uint64; \
477 switch (sizeof(_type)) { \
478 case 1: \
479 { \
480 union { _type t; uint8_t v; } __tmp = { (_type) (_src) }; \
481 __ctf_tmp_uint64 = (uint64_t) __tmp.v; \
482 break; \
483 } \
484 case 2: \
485 { \
486 union { _type t; uint16_t v; } __tmp = { (_type) (_src) }; \
487 __ctf_tmp_uint64 = (uint64_t) __tmp.v; \
488 break; \
489 } \
490 case 4: \
491 { \
492 union { _type t; uint32_t v; } __tmp = { (_type) (_src) }; \
493 __ctf_tmp_uint64 = (uint64_t) __tmp.v; \
494 break; \
495 } \
496 case 8: \
497 { \
498 union { _type t; uint64_t v; } __tmp = { (_type) (_src) }; \
499 __ctf_tmp_uint64 = (uint64_t) __tmp.v; \
500 break; \
501 } \
502 default: \
503 BUG_ON(1); \
504 }; \
505 memcpy(__stack_data, &__ctf_tmp_uint64, sizeof(uint64_t)); \
506 } \
507 __stack_data += sizeof(int64_t);
508
509#undef _ctf_integer_ext_isuser0
510#define _ctf_integer_ext_isuser0(_type, _item, _src, _byte_order, _base, _nowrite) \
511 _ctf_integer_ext_fetched(_type, _item, _src, _byte_order, _base, _nowrite)
512
513#undef _ctf_integer_ext_isuser1
514#define _ctf_integer_ext_isuser1(_type, _item, _user_src, _byte_order, _base, _nowrite) \
515{ \
516 __typeof__(_user_src) _src; \
517 if (get_user(_src, &(_user_src))) \
518 _src = 0; \
519 _ctf_integer_ext_fetched(_type, _item, _src, _byte_order, _base, _nowrite) \
520}
521
522#undef _ctf_integer_ext
523#define _ctf_integer_ext(_type, _item, _user_src, _byte_order, _base, _user, _nowrite) \
524 _ctf_integer_ext_isuser##_user(_type, _item, _user_src, _byte_order, _base, _nowrite)
525
526#undef _ctf_array_encoded
527#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _user, _nowrite) \
528 { \
529 unsigned long __ctf_tmp_ulong = (unsigned long) (_length); \
530 const void *__ctf_tmp_ptr = (_src); \
531 memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \
532 __stack_data += sizeof(unsigned long); \
533 memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \
534 __stack_data += sizeof(void *); \
535 }
536
537#undef _ctf_array_bitfield
538#define _ctf_array_bitfield(_type, _item, _src, _length, _user, _nowrite) \
539 _ctf_array_encoded(_type, _item, _src, _length, none, _user, _nowrite)
540
541#undef _ctf_sequence_encoded
542#define _ctf_sequence_encoded(_type, _item, _src, _length_type, \
543 _src_length, _encoding, _byte_order, _base, _user, _nowrite) \
544 { \
545 unsigned long __ctf_tmp_ulong = (unsigned long) (_src_length); \
546 const void *__ctf_tmp_ptr = (_src); \
547 memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \
548 __stack_data += sizeof(unsigned long); \
549 memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \
550 __stack_data += sizeof(void *); \
551 }
552
553#undef _ctf_sequence_bitfield
554#define _ctf_sequence_bitfield(_type, _item, _src, \
555 _length_type, _src_length, \
556 _user, _nowrite) \
557 _ctf_sequence_encoded(_type, _item, _src, _length_type, _src_length, \
558 none, __LITTLE_ENDIAN, 10, _user, _nowrite)
559
560#undef _ctf_string
561#define _ctf_string(_item, _src, _user, _nowrite) \
562 { \
563 const void *__ctf_tmp_ptr = (_src); \
564 memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \
565 __stack_data += sizeof(void *); \
566 }
567
568#undef TP_PROTO
569#define TP_PROTO(...) __VA_ARGS__
570
571#undef TP_FIELDS
572#define TP_FIELDS(...) __VA_ARGS__
573
574#undef TP_locvar
575#define TP_locvar(...) __VA_ARGS__
576
577#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
578#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code, _fields) \
579static inline \
580void __event_prepare_filter_stack__##_name(char *__stack_data, \
581 void *__tp_locvar) \
582{ \
583 struct { _locvar } *tp_locvar __attribute__((unused)) = __tp_locvar; \
584 \
585 _fields \
586}
587
588#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
589#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code, _fields) \
590static inline \
591void __event_prepare_filter_stack__##_name(char *__stack_data, \
592 void *__tp_locvar, _proto) \
593{ \
594 struct { _locvar } *tp_locvar __attribute__((unused)) = __tp_locvar; \
595 \
596 _fields \
597}
598
599#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
600
601/*
602 * Stage 5 of the trace events.
603 *
604 * Create static inline function that calculates event payload alignment.
605 */
606
607/* Reset all macros within TRACEPOINT_EVENT */
608#include "lttng-events-reset.h"
609#include "lttng-events-write.h"
610
611#undef _ctf_integer_ext
612#define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _user, _nowrite) \
613 __event_align = max_t(size_t, __event_align, lttng_alignof(_type));
614
615#undef _ctf_array_encoded
616#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _user, _nowrite) \
617 __event_align = max_t(size_t, __event_align, lttng_alignof(_type));
618
619#undef _ctf_array_bitfield
620#define _ctf_array_bitfield(_type, _item, _src, _length, _user, _nowrite) \
621 _ctf_array_encoded(_type, _item, _src, _length, none, _user, _nowrite)
622
623#undef _ctf_sequence_encoded
624#define _ctf_sequence_encoded(_type, _item, _src, _length_type, \
625 _src_length, _encoding, _byte_order, _base, _user, _nowrite) \
626 __event_align = max_t(size_t, __event_align, lttng_alignof(_length_type)); \
627 __event_align = max_t(size_t, __event_align, lttng_alignof(_type));
628
629#undef _ctf_sequence_bitfield
630#define _ctf_sequence_bitfield(_type, _item, _src, \
631 _length_type, _src_length, \
632 _user, _nowrite) \
633 _ctf_sequence_encoded(_type, _item, _src, _length_type, _src_length, \
634 none, __LITTLE_ENDIAN, 10, _user, _nowrite)
635
636#undef _ctf_string
637#define _ctf_string(_item, _src, _user, _nowrite)
638
639#undef TP_PROTO
640#define TP_PROTO(...) __VA_ARGS__
641
642#undef TP_FIELDS
643#define TP_FIELDS(...) __VA_ARGS__
644
645#undef TP_locvar
646#define TP_locvar(...) __VA_ARGS__
647
648#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
649#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code, _fields) \
650static inline size_t __event_get_align__##_name(void *__tp_locvar, _proto) \
651{ \
652 size_t __event_align = 1; \
653 struct { _locvar } *tp_locvar __attribute__((unused)) = __tp_locvar; \
654 \
655 _fields \
656 return __event_align; \
657}
658
659#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
660#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code, _fields) \
661static inline size_t __event_get_align__##_name(void *__tp_locvar) \
662{ \
663 size_t __event_align = 1; \
664 struct { _locvar } *tp_locvar __attribute__((unused)) = __tp_locvar; \
665 \
666 _fields \
667 return __event_align; \
668}
669
670#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
671
672/*
673 * Stage 6 of tracepoint event generation.
674 *
675 * Create the probe function. This function calls event size calculation
676 * and writes event data into the buffer.
677 */
678
679/* Reset all macros within TRACEPOINT_EVENT */
680#include "lttng-events-reset.h"
681#include "lttng-events-write.h"
682
683#undef _ctf_integer_ext_fetched
684#define _ctf_integer_ext_fetched(_type, _item, _src, _byte_order, _base, _nowrite) \
685 { \
686 _type __tmp = _src; \
687 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__tmp));\
688 __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp));\
689 }
690
691#undef _ctf_integer_ext_isuser0
692#define _ctf_integer_ext_isuser0(_type, _item, _src, _byte_order, _base, _nowrite) \
693 _ctf_integer_ext_fetched(_type, _item, _src, _byte_order, _base, _nowrite)
694
695#undef _ctf_integer_ext_isuser1
696#define _ctf_integer_ext_isuser1(_type, _item, _user_src, _byte_order, _base, _nowrite) \
697{ \
698 __typeof__(_user_src) _src; \
699 if (get_user(_src, &(_user_src))) \
700 _src = 0; \
701 _ctf_integer_ext_fetched(_type, _item, _src, _byte_order, _base, _nowrite) \
702}
703
704#undef _ctf_integer_ext
705#define _ctf_integer_ext(_type, _item, _user_src, _byte_order, _base, _user, _nowrite) \
706 _ctf_integer_ext_isuser##_user(_type, _item, _user_src, _byte_order, _base, _nowrite)
707
708#undef _ctf_array_encoded
709#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _user, _nowrite) \
710 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \
711 if (_user) { \
712 __chan->ops->event_write_from_user(&__ctx, _src, sizeof(_type) * (_length)); \
713 } else { \
714 __chan->ops->event_write(&__ctx, _src, sizeof(_type) * (_length)); \
715 }
716
717#if (__BYTE_ORDER == __LITTLE_ENDIAN)
718#undef _ctf_array_bitfield
719#define _ctf_array_bitfield(_type, _item, _src, _length, _user, _nowrite) \
720 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \
721 if (_user) { \
722 __chan->ops->event_write_from_user(&__ctx, _src, sizeof(_type) * (_length)); \
723 } else { \
724 __chan->ops->event_write(&__ctx, _src, sizeof(_type) * (_length)); \
725 }
726#else /* #if (__BYTE_ORDER == __LITTLE_ENDIAN) */
727/*
728 * For big endian, we need to byteswap into little endian.
729 */
730#undef _ctf_array_bitfield
731#define _ctf_array_bitfield(_type, _item, _src, _length, _user, _nowrite) \
732 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \
733 { \
734 size_t _i; \
735 \
736 for (_i = 0; _i < (_length); _i++) { \
737 _type _tmp; \
738 \
739 if (_user) { \
740 if (get_user(_tmp, (_type *) _src + _i)) \
741 _tmp = 0; \
742 } else { \
743 _tmp = ((_type *) _src)[_i]; \
744 } \
745 switch (sizeof(_type)) { \
746 case 1: \
747 break; \
748 case 2: \
749 _tmp = cpu_to_le16(_tmp); \
750 break; \
751 case 4: \
752 _tmp = cpu_to_le32(_tmp); \
753 break; \
754 case 8: \
755 _tmp = cpu_to_le64(_tmp); \
756 break; \
757 default: \
758 BUG_ON(1); \
759 } \
760 __chan->ops->event_write(&__ctx, &_tmp, sizeof(_type)); \
761 } \
762 }
763#endif /* #else #if (__BYTE_ORDER == __LITTLE_ENDIAN) */
764
765#undef _ctf_sequence_encoded
766#define _ctf_sequence_encoded(_type, _item, _src, _length_type, \
767 _src_length, _encoding, _byte_order, _base, _user, _nowrite) \
768 { \
769 _length_type __tmpl = __stackvar.__dynamic_len[__dynamic_len_idx]; \
770 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_length_type));\
771 __chan->ops->event_write(&__ctx, &__tmpl, sizeof(_length_type));\
772 } \
773 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \
774 if (_user) { \
775 __chan->ops->event_write_from_user(&__ctx, _src, \
776 sizeof(_type) * __get_dynamic_len(dest)); \
777 } else { \
778 __chan->ops->event_write(&__ctx, _src, \
779 sizeof(_type) * __get_dynamic_len(dest)); \
780 }
781
782#if (__BYTE_ORDER == __LITTLE_ENDIAN)
783#undef _ctf_sequence_bitfield
784#define _ctf_sequence_bitfield(_type, _item, _src, \
785 _length_type, _src_length, \
786 _user, _nowrite) \
787 { \
788 _length_type __tmpl = __stackvar.__dynamic_len[__dynamic_len_idx] * sizeof(_type) * CHAR_BIT; \
789 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_length_type));\
790 __chan->ops->event_write(&__ctx, &__tmpl, sizeof(_length_type));\
791 } \
792 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \
793 if (_user) { \
794 __chan->ops->event_write_from_user(&__ctx, _src, \
795 sizeof(_type) * __get_dynamic_len(dest)); \
796 } else { \
797 __chan->ops->event_write(&__ctx, _src, \
798 sizeof(_type) * __get_dynamic_len(dest)); \
799 }
800#else /* #if (__BYTE_ORDER == __LITTLE_ENDIAN) */
801/*
802 * For big endian, we need to byteswap into little endian.
803 */
804#undef _ctf_sequence_bitfield
805#define _ctf_sequence_bitfield(_type, _item, _src, \
806 _length_type, _src_length, \
807 _user, _nowrite) \
808 { \
809 _length_type __tmpl = __stackvar.__dynamic_len[__dynamic_len_idx] * sizeof(_type) * CHAR_BIT; \
810 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_length_type));\
811 __chan->ops->event_write(&__ctx, &__tmpl, sizeof(_length_type));\
812 } \
813 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \
814 { \
815 size_t _i, _length; \
816 \
817 _length = __get_dynamic_len(dest); \
818 for (_i = 0; _i < _length; _i++) { \
819 _type _tmp; \
820 \
821 if (_user) { \
822 if (get_user(_tmp, (_type *) _src + _i)) \
823 _tmp = 0; \
824 } else { \
825 _tmp = ((_type *) _src)[_i]; \
826 } \
827 switch (sizeof(_type)) { \
828 case 1: \
829 break; \
830 case 2: \
831 _tmp = cpu_to_le16(_tmp); \
832 break; \
833 case 4: \
834 _tmp = cpu_to_le32(_tmp); \
835 break; \
836 case 8: \
837 _tmp = cpu_to_le64(_tmp); \
838 break; \
839 default: \
840 BUG_ON(1); \
841 } \
842 __chan->ops->event_write(&__ctx, &_tmp, sizeof(_type)); \
843 } \
844 }
845#endif /* #else #if (__BYTE_ORDER == __LITTLE_ENDIAN) */
846
847#undef _ctf_string
848#define _ctf_string(_item, _src, _user, _nowrite) \
849 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(*(_src))); \
850 if (_user) { \
851 __chan->ops->event_strcpy_from_user(&__ctx, _src, \
852 __get_dynamic_len(dest)); \
853 } else { \
854 __chan->ops->event_strcpy(&__ctx, _src, \
855 __get_dynamic_len(dest)); \
856 }
857
858/* Beware: this get len actually consumes the len value */
859#undef __get_dynamic_len
860#define __get_dynamic_len(field) __stackvar.__dynamic_len[__dynamic_len_idx++]
861
862#undef TP_PROTO
863#define TP_PROTO(...) __VA_ARGS__
864
865#undef TP_ARGS
866#define TP_ARGS(...) __VA_ARGS__
867
868#undef TP_FIELDS
869#define TP_FIELDS(...) __VA_ARGS__
870
871#undef TP_locvar
872#define TP_locvar(...) __VA_ARGS__
873
874#undef TP_code
875#define TP_code(...) __VA_ARGS__
876
877/*
878 * For state dump, check that "session" argument (mandatory) matches the
879 * session this event belongs to. Ensures that we write state dump data only
880 * into the started session, not into all sessions.
881 */
882#ifdef TP_SESSION_CHECK
883#define _TP_SESSION_CHECK(session, csession) (session == csession)
884#else /* TP_SESSION_CHECK */
885#define _TP_SESSION_CHECK(session, csession) 1
886#endif /* TP_SESSION_CHECK */
887
888/*
889 * Using twice size for filter stack data to hold size and pointer for
890 * each field (worse case). For integers, max size required is 64-bit.
891 * Same for double-precision floats. Those fit within
892 * 2*sizeof(unsigned long) for all supported architectures.
893 * Perform UNION (||) of filter runtime list.
894 */
895#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
896#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code, _fields) \
897static void __event_probe__##_name(void *__data, _proto) \
898{ \
899 struct probe_local_vars { _locvar }; \
900 struct lttng_event *__event = __data; \
901 struct lttng_channel *__chan = __event->chan; \
902 struct lttng_session *__session = __chan->session; \
903 struct lib_ring_buffer_ctx __ctx; \
904 size_t __event_len, __event_align; \
905 size_t __dynamic_len_idx __attribute__((unused)) = 0; \
906 union { \
907 size_t __dynamic_len[ARRAY_SIZE(__event_fields___##_name)]; \
908 char __filter_stack_data[2 * sizeof(unsigned long) * ARRAY_SIZE(__event_fields___##_name)]; \
909 } __stackvar; \
910 int __ret; \
911 struct probe_local_vars __tp_locvar; \
912 struct probe_local_vars *tp_locvar __attribute__((unused)) = \
913 &__tp_locvar; \
914 struct lttng_pid_tracker *__lpf; \
915 \
916 if (!_TP_SESSION_CHECK(session, __session)) \
917 return; \
918 if (unlikely(!ACCESS_ONCE(__session->active))) \
919 return; \
920 if (unlikely(!ACCESS_ONCE(__chan->enabled))) \
921 return; \
922 if (unlikely(!ACCESS_ONCE(__event->enabled))) \
923 return; \
924 __lpf = lttng_rcu_dereference(__session->pid_tracker); \
925 if (__lpf && likely(!lttng_pid_tracker_lookup(__lpf, current->pid))) \
926 return; \
927 _code \
928 if (unlikely(!list_empty(&__event->bytecode_runtime_head))) { \
929 struct lttng_bytecode_runtime *bc_runtime; \
930 int __filter_record = __event->has_enablers_without_bytecode; \
931 \
932 __event_prepare_filter_stack__##_name(__stackvar.__filter_stack_data, \
933 tp_locvar, _args); \
934 lttng_list_for_each_entry_rcu(bc_runtime, &__event->bytecode_runtime_head, node) { \
935 if (unlikely(bc_runtime->filter(bc_runtime, \
936 __stackvar.__filter_stack_data) & LTTNG_FILTER_RECORD_FLAG)) \
937 __filter_record = 1; \
938 } \
939 if (likely(!__filter_record)) \
940 return; \
941 } \
942 __event_len = __event_get_size__##_name(__stackvar.__dynamic_len, \
943 tp_locvar, _args); \
944 __event_align = __event_get_align__##_name(tp_locvar, _args); \
945 lib_ring_buffer_ctx_init(&__ctx, __chan->chan, __event, __event_len, \
946 __event_align, -1); \
947 __ret = __chan->ops->event_reserve(&__ctx, __event->id); \
948 if (__ret < 0) \
949 return; \
950 _fields \
951 __chan->ops->event_commit(&__ctx); \
952}
953
954#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
955#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code, _fields) \
956static void __event_probe__##_name(void *__data) \
957{ \
958 struct probe_local_vars { _locvar }; \
959 struct lttng_event *__event = __data; \
960 struct lttng_channel *__chan = __event->chan; \
961 struct lttng_session *__session = __chan->session; \
962 struct lib_ring_buffer_ctx __ctx; \
963 size_t __event_len, __event_align; \
964 size_t __dynamic_len_idx __attribute__((unused)) = 0; \
965 union { \
966 size_t __dynamic_len[ARRAY_SIZE(__event_fields___##_name)]; \
967 char __filter_stack_data[2 * sizeof(unsigned long) * ARRAY_SIZE(__event_fields___##_name)]; \
968 } __stackvar; \
969 int __ret; \
970 struct probe_local_vars __tp_locvar; \
971 struct probe_local_vars *tp_locvar __attribute__((unused)) = \
972 &__tp_locvar; \
973 struct lttng_pid_tracker *__lpf; \
974 \
975 if (!_TP_SESSION_CHECK(session, __session)) \
976 return; \
977 if (unlikely(!ACCESS_ONCE(__session->active))) \
978 return; \
979 if (unlikely(!ACCESS_ONCE(__chan->enabled))) \
980 return; \
981 if (unlikely(!ACCESS_ONCE(__event->enabled))) \
982 return; \
983 __lpf = lttng_rcu_dereference(__session->pid_tracker); \
984 if (__lpf && likely(!lttng_pid_tracker_lookup(__lpf, current->pid))) \
985 return; \
986 _code \
987 if (unlikely(!list_empty(&__event->bytecode_runtime_head))) { \
988 struct lttng_bytecode_runtime *bc_runtime; \
989 int __filter_record = __event->has_enablers_without_bytecode; \
990 \
991 __event_prepare_filter_stack__##_name(__stackvar.__filter_stack_data, \
992 tp_locvar); \
993 lttng_list_for_each_entry_rcu(bc_runtime, &__event->bytecode_runtime_head, node) { \
994 if (unlikely(bc_runtime->filter(bc_runtime, \
995 __stackvar.__filter_stack_data) & LTTNG_FILTER_RECORD_FLAG)) \
996 __filter_record = 1; \
997 } \
998 if (likely(!__filter_record)) \
999 return; \
1000 } \
1001 __event_len = __event_get_size__##_name(__stackvar.__dynamic_len, tp_locvar); \
1002 __event_align = __event_get_align__##_name(tp_locvar); \
1003 lib_ring_buffer_ctx_init(&__ctx, __chan->chan, __event, __event_len, \
1004 __event_align, -1); \
1005 __ret = __chan->ops->event_reserve(&__ctx, __event->id); \
1006 if (__ret < 0) \
1007 return; \
1008 _fields \
1009 __chan->ops->event_commit(&__ctx); \
1010}
1011
1012#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
1013
1014#undef __get_dynamic_len
1015
1016/*
1017 * Stage 7 of the trace events.
1018 *
1019 * Create event descriptions.
1020 */
1021
1022/* Named field types must be defined in lttng-types.h */
1023
1024#include "lttng-events-reset.h" /* Reset all macros within LTTNG_TRACEPOINT_EVENT */
1025
1026#ifndef TP_PROBE_CB
1027#define TP_PROBE_CB(_template) &__event_probe__##_template
1028#endif
1029
1030#undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS
1031#define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS(_template, _name, _map) \
1032static const struct lttng_event_desc __event_desc___##_map = { \
1033 .fields = __event_fields___##_template, \
1034 .name = #_map, \
1035 .kname = #_name, \
1036 .probe_callback = (void *) TP_PROBE_CB(_template), \
1037 .nr_fields = ARRAY_SIZE(__event_fields___##_template), \
1038 .owner = THIS_MODULE, \
1039};
1040
1041#undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP
1042#define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(_template, _name, _map, _proto, _args) \
1043 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS(_template, _name, _map)
1044
1045#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
1046
1047/*
1048 * Stage 8 of the trace events.
1049 *
1050 * Create an array of event description pointers.
1051 */
1052
1053#include "lttng-events-reset.h" /* Reset all macros within LTTNG_TRACEPOINT_EVENT */
1054
1055#undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS
1056#define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS(_template, _name, _map) \
1057 &__event_desc___##_map,
1058
1059#undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP
1060#define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(_template, _name, _map, _proto, _args) \
1061 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS(_template, _name, _map)
1062
1063#define TP_ID1(_token, _system) _token##_system
1064#define TP_ID(_token, _system) TP_ID1(_token, _system)
1065
1066static const struct lttng_event_desc *TP_ID(__event_desc___, TRACE_SYSTEM)[] = {
1067#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
1068};
1069
1070#undef TP_ID1
1071#undef TP_ID
1072
1073/*
1074 * Stage 9 of the trace events.
1075 *
1076 * Create a toplevel descriptor for the whole probe.
1077 */
1078
1079#define TP_ID1(_token, _system) _token##_system
1080#define TP_ID(_token, _system) TP_ID1(_token, _system)
1081
1082/* non-const because list head will be modified when registered. */
1083static __used struct lttng_probe_desc TP_ID(__probe_desc___, TRACE_SYSTEM) = {
1084 .provider = __stringify(TRACE_SYSTEM),
1085 .event_desc = TP_ID(__event_desc___, TRACE_SYSTEM),
1086 .nr_events = ARRAY_SIZE(TP_ID(__event_desc___, TRACE_SYSTEM)),
1087 .head = { NULL, NULL },
1088 .lazy_init_head = { NULL, NULL },
1089 .lazy = 0,
1090};
1091
1092#undef TP_ID1
1093#undef TP_ID
1094
1095/*
1096 * Stage 10 of the trace events.
1097 *
1098 * Register/unregister probes at module load/unload.
1099 */
1100
1101#include "lttng-events-reset.h" /* Reset all macros within LTTNG_TRACEPOINT_EVENT */
1102
1103#define TP_ID1(_token, _system) _token##_system
1104#define TP_ID(_token, _system) TP_ID1(_token, _system)
1105#define module_init_eval1(_token, _system) module_init(_token##_system)
1106#define module_init_eval(_token, _system) module_init_eval1(_token, _system)
1107#define module_exit_eval1(_token, _system) module_exit(_token##_system)
1108#define module_exit_eval(_token, _system) module_exit_eval1(_token, _system)
1109
1110#ifndef TP_MODULE_NOINIT
1111static int TP_ID(__lttng_events_init__, TRACE_SYSTEM)(void)
1112{
1113 wrapper_vmalloc_sync_all();
1114 return lttng_probe_register(&TP_ID(__probe_desc___, TRACE_SYSTEM));
1115}
1116
1117static void TP_ID(__lttng_events_exit__, TRACE_SYSTEM)(void)
1118{
1119 lttng_probe_unregister(&TP_ID(__probe_desc___, TRACE_SYSTEM));
1120}
1121
1122#ifndef TP_MODULE_NOAUTOLOAD
1123module_init_eval(__lttng_events_init__, TRACE_SYSTEM);
1124module_exit_eval(__lttng_events_exit__, TRACE_SYSTEM);
1125#endif
1126
1127#endif
1128
1129#undef module_init_eval
1130#undef module_exit_eval
1131#undef TP_ID1
1132#undef TP_ID
1133
1134#undef TP_PROTO
1135#undef TP_ARGS
LTTng 2.0/0.x modules
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