projects / lttng-ust.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Fix: loglevel and model_emf_uri with g++ compiled probes
[lttng-ust.git] / include / lttng / ust-tracepoint-event.h
CommitLineData
1c324e59 1/*
e92f3e28 2 * Copyright (c) 2011-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
1c324e59 3 *
e92f3e28
MD		 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
1c324e59 10 *
e92f3e28
MD		 11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
d2428e87
MD		 13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
1c324e59
MD		 21 */
22
23#include <stdio.h>
7d381d6e 24#include <stdlib.h>
1c324e59 25#include <urcu/compiler.h>
f488575f 26#include <urcu/rculist.h>
1c324e59 27#include <lttng/ust-events.h>
1c324e59 28#include <lttng/ringbuffer-config.h>
a8909ba5 29#include <lttng/ust-compiler.h>
000b8662 30#include <lttng/tracepoint.h>
39ad74cf 31#include <byteswap.h>
44c72f10 32#include <string.h>
1c324e59 33
24a39530
PP		 34#define __LTTNG_UST_NULL_STRING "(null)"
35
000b8662
MD		 36#undef tp_list_for_each_entry_rcu
37#define tp_list_for_each_entry_rcu(pos, head, member) \
38 for (pos = cds_list_entry(tp_rcu_dereference_bp((head)->next), __typeof__(*pos), member); \
39 &pos->member != (head); \
40 pos = cds_list_entry(tp_rcu_dereference_bp(pos->member.next), __typeof__(*pos), member))
41
1c324e59
MD		 42/*
43 * TRACEPOINT_EVENT_CLASS declares a class of tracepoints receiving the
44 * same arguments and having the same field layout.
45 *
46 * TRACEPOINT_EVENT_INSTANCE declares an instance of a tracepoint, with
47 * its own provider and name. It refers to a class (template).
48 *
49 * TRACEPOINT_EVENT declared both a class and an instance and does a
50 * direct mapping from the instance to the class.
51 */
52
53#undef TRACEPOINT_EVENT
54#define TRACEPOINT_EVENT(_provider, _name, _args, _fields) \
55 TRACEPOINT_EVENT_CLASS(_provider, _name, \
56 _TP_PARAMS(_args), \
57 _TP_PARAMS(_fields)) \
58 TRACEPOINT_EVENT_INSTANCE(_provider, _name, _name, \
68755429 59 _TP_PARAMS(_args))
1c324e59
MD		 60
61/* Helpers */
62#define _TP_ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
63
64#define _tp_max_t(type, x, y) \
65 ({ \
66 type __max1 = (x); \
67 type __max2 = (y); \
68 __max1 > __max2 ? __max1: __max2; \
69 })
70
71/*
72 * Stage 0 of tracepoint event generation.
73 *
74 * Check that each TRACEPOINT_EVENT provider argument match the
75 * TRACEPOINT_PROVIDER by creating dummy callbacks.
76 */
77
78/* Reset all macros within TRACEPOINT_EVENT */
79#include <lttng/ust-tracepoint-event-reset.h>
80
7ce6b21d
PW		 81static inline lttng_ust_notrace
82void _TP_COMBINE_TOKENS(__tracepoint_provider_mismatch_, TRACEPOINT_PROVIDER)(void);
1c324e59
MD		 83static inline
84void _TP_COMBINE_TOKENS(__tracepoint_provider_mismatch_, TRACEPOINT_PROVIDER)(void)
85{
86}
87
88#undef TRACEPOINT_EVENT_CLASS
89#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
90 __tracepoint_provider_mismatch_##_provider();
91
92#undef TRACEPOINT_EVENT_INSTANCE
93#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
94 __tracepoint_provider_mismatch_##_provider();
95
7ce6b21d
PW		 96static inline lttng_ust_notrace
97void _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)(void);
e8bd1da7 98static inline
1c324e59
MD		 99void _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)(void)
100{
101#include TRACEPOINT_INCLUDE
102}
103
f56cd1d5
MD		 104/*
105 * Stage 0.1 of tracepoint event generation.
106 *
107 * Check that each TRACEPOINT_EVENT provider:name does not exceed the
108 * tracepoint name length limit.
109 */
110
111/* Reset all macros within TRACEPOINT_EVENT */
112#include <lttng/ust-tracepoint-event-reset.h>
113
114#undef TRACEPOINT_EVENT_INSTANCE
115#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
116static const char \
117 __tp_name_len_check##_provider##___##_name[LTTNG_UST_SYM_NAME_LEN] \
118 __attribute__((unused)) = \
119 #_provider ":" #_name;
120
121#include TRACEPOINT_INCLUDE
122
c785c634
MD		 123/*
124 * Stage 0.9 of tracepoint event generation
125 *
126 * Unfolding the enums
127 */
128#include <lttng/ust-tracepoint-event-reset.h>
129
130/* Enumeration entry (single value) */
131#undef ctf_enum_value
132#define ctf_enum_value(_string, _value) \
a6f80644
MD		 133 { \
134 .start = { \
a6f80644
MD		 135 .value = lttng_is_signed_type(__typeof__(_value)) ? \
136 (long long) (_value) : (_value), \
2c3f4c28 137 .signedness = lttng_is_signed_type(__typeof__(_value)), \
a6f80644
MD		 138 }, \
139 .end = { \
a6f80644
MD		 140 .value = lttng_is_signed_type(__typeof__(_value)) ? \
141 (long long) (_value) : (_value), \
2c3f4c28 142 .signedness = lttng_is_signed_type(__typeof__(_value)), \
a6f80644
MD		 143 }, \
144 .string = (_string), \
145 },
c785c634
MD		 146
147/* Enumeration entry (range) */
148#undef ctf_enum_range
149#define ctf_enum_range(_string, _range_start, _range_end) \
a6f80644
MD		 150 { \
151 .start = { \
a6f80644
MD		 152 .value = lttng_is_signed_type(__typeof__(_range_start)) ? \
153 (long long) (_range_start) : (_range_start), \
2c3f4c28 154 .signedness = lttng_is_signed_type(__typeof__(_range_start)), \
a6f80644
MD		 155 }, \
156 .end = { \
a6f80644
MD		 157 .value = lttng_is_signed_type(__typeof__(_range_end)) ? \
158 (long long) (_range_end) : (_range_end), \
2c3f4c28 159 .signedness = lttng_is_signed_type(__typeof__(_range_end)), \
a6f80644
MD		 160 }, \
161 .string = (_string), \
162 },
c785c634 163
3e762260
PP		 164/* Enumeration entry (automatic value; follows the rules of CTF) */
165#undef ctf_enum_auto
166#define ctf_enum_auto(_string) \
167 { \
168 .start = { \
169 .value = -1ULL, \
170 .signedness = 0, \
171 }, \
172 .end = { \
173 .value = -1ULL, \
174 .signedness = 0, \
175 }, \
176 .string = (_string), \
177 .u = { \
178 .extra = { \
179 .options = LTTNG_ENUM_ENTRY_OPTION_IS_AUTO, \
180 }, \
181 }, \
182 },
183
c785c634
MD		 184#undef TP_ENUM_VALUES
185#define TP_ENUM_VALUES(...) \
186 __VA_ARGS__
187
188#undef TRACEPOINT_ENUM
189#define TRACEPOINT_ENUM(_provider, _name, _values) \
190 const struct lttng_enum_entry __enum_values__##_provider##_##_name[] = { \
191 _values \
1c80c909 192 ctf_enum_value("", 0) /* Dummy, 0-len array forbidden by C99. */ \
c785c634
MD		 193 };
194
195#include TRACEPOINT_INCLUDE
196
1c324e59
MD		 197/*
198 * Stage 1 of tracepoint event generation.
199 *
200 * Create event field type metadata section.
201 * Each event produce an array of fields.
202 */
203
204/* Reset all macros within TRACEPOINT_EVENT */
205#include <lttng/ust-tracepoint-event-reset.h>
4774c8f3
MD		 206#include <lttng/ust-tracepoint-event-write.h>
207#include <lttng/ust-tracepoint-event-nowrite.h>
1c324e59 208
4774c8f3 209#undef _ctf_integer_ext
180901e6 210#define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \
1c324e59
MD		 211 { \
212 .name = #_item, \
213 .type = __type_integer(_type, _byte_order, _base, none),\
180901e6 214 .nowrite = _nowrite, \
1c324e59
MD		 215 },
216
4774c8f3 217#undef _ctf_float
180901e6 218#define _ctf_float(_type, _item, _src, _nowrite) \
1c324e59
MD		 219 { \
220 .name = #_item, \
221 .type = __type_float(_type), \
180901e6 222 .nowrite = _nowrite, \
1c324e59
MD		 223 },
224
4774c8f3 225#undef _ctf_array_encoded
f3ec4cb5
MD		 226#define _ctf_array_encoded(_type, _item, _src, _byte_order, \
227 _length, _encoding, _nowrite, \
228 _elem_type_base) \
1c324e59
MD		 229 { \
230 .name = #_item, \
231 .type = \
232 { \
233 .atype = atype_array, \
46d52200 234 .u = \
1c324e59 235 { \
46d52200
ZT		 236 .array = \
237 { \
f3ec4cb5 238 .elem_type = __type_integer(_type, _byte_order, _elem_type_base, _encoding), \
46d52200
ZT		 239 .length = _length, \
240 } \
241 } \
1c324e59 242 }, \
180901e6 243 .nowrite = _nowrite, \
1c324e59
MD		 244 },
245
4774c8f3 246#undef _ctf_sequence_encoded
48d660d1 247#define _ctf_sequence_encoded(_type, _item, _src, _byte_order, \
f968510a
PP		 248 _length_type, _src_length, _encoding, _nowrite, \
249 _elem_type_base) \
1c324e59
MD		 250 { \
251 .name = #_item, \
252 .type = \
253 { \
254 .atype = atype_sequence, \
46d52200 255 .u = \
1c324e59 256 { \
46d52200
ZT		 257 .sequence = \
258 { \
259 .length_type = __type_integer(_length_type, BYTE_ORDER, 10, none), \
48d660d1 260 .elem_type = __type_integer(_type, _byte_order, _elem_type_base, _encoding), \
46d52200 261 }, \
1c324e59
MD		 262 }, \
263 }, \
180901e6 264 .nowrite = _nowrite, \
1c324e59
MD		 265 },
266
4774c8f3 267#undef _ctf_string
180901e6 268#define _ctf_string(_item, _src, _nowrite) \
1c324e59
MD		 269 { \
270 .name = #_item, \
271 .type = \
272 { \
273 .atype = atype_string, \
46d52200
ZT		 274 .u = \
275 { \
276 .basic = { .string = { .encoding = lttng_encode_UTF8 } } \
277 }, \
1c324e59 278 }, \
180901e6 279 .nowrite = _nowrite, \
1c324e59
MD		 280 },
281
c785c634
MD		 282#undef _ctf_enum
283#define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \
284 { \
285 .name = #_item, \
286 .type = { \
287 .atype = atype_enum, \
288 .u = { \
289 .basic = { \
290 .enumeration = { \
291 .desc = &__enum_##_provider##_##_name, \
292 .container_type = { \
293 .size = sizeof(_type) * CHAR_BIT, \
294 .alignment = lttng_alignof(_type) * CHAR_BIT, \
295 .signedness = lttng_is_signed_type(_type), \
296 .reverse_byte_order = 0, \
297 .base = 10, \
298 .encoding = lttng_encode_none, \
299 }, \
300 }, \
301 }, \
302 }, \
303 }, \
304 .nowrite = _nowrite, \
305 },
306
1c324e59 307#undef TP_FIELDS
2eda209b 308#define TP_FIELDS(...) __VA_ARGS__ /* Only one used in this phase */
1c324e59
MD		 309
310#undef TRACEPOINT_EVENT_CLASS
311#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
312 static const struct lttng_event_field __event_fields___##_provider##___##_name[] = { \
313 _fields \
1c80c909 314 ctf_integer(int, dummy, 0) /* Dummy, C99 forbids 0-len array. */ \
1c324e59
MD		 315 };
316
c785c634
MD		 317#undef TRACEPOINT_ENUM
318#define TRACEPOINT_ENUM(_provider, _name, _values) \
319 static const struct lttng_enum_desc __enum_##_provider##_##_name = { \
320 .name = #_provider "_" #_name, \
321 .entries = __enum_values__##_provider##_##_name, \
1c80c909 322 .nr_entries = _TP_ARRAY_SIZE(__enum_values__##_provider##_##_name) - 1, \
c785c634
MD		 323 };
324
1c324e59
MD		 325#include TRACEPOINT_INCLUDE
326
327/*
328 * Stage 2 of tracepoint event generation.
329 *
330 * Create probe callback prototypes.
331 */
332
333/* Reset all macros within TRACEPOINT_EVENT */
334#include <lttng/ust-tracepoint-event-reset.h>
335
336#undef TP_ARGS
2eda209b 337#define TP_ARGS(...) __VA_ARGS__
1c324e59
MD		 338
339#undef TRACEPOINT_EVENT_CLASS
340#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
341static void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args));
342
343#include TRACEPOINT_INCLUDE
344
345/*
c785c634 346 * Stage 3.0 of tracepoint event generation.
1c324e59 347 *
1c324e59
MD		 348 * Create static inline function that calculates event size.
349 */
350
351/* Reset all macros within TRACEPOINT_EVENT */
352#include <lttng/ust-tracepoint-event-reset.h>
4774c8f3 353#include <lttng/ust-tracepoint-event-write.h>
1c324e59 354
4774c8f3 355#undef _ctf_integer_ext
180901e6 356#define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \
1c324e59
MD		 357 __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
358 __event_len += sizeof(_type);
359
4774c8f3 360#undef _ctf_float
180901e6 361#define _ctf_float(_type, _item, _src, _nowrite) \
1c324e59
MD		 362 __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
363 __event_len += sizeof(_type);
364
4774c8f3 365#undef _ctf_array_encoded
f3ec4cb5
MD		 366#define _ctf_array_encoded(_type, _item, _src, _byte_order, _length, _encoding, \
367 _nowrite, _elem_type_base) \
1c324e59
MD		 368 __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
369 __event_len += sizeof(_type) * (_length);
370
4774c8f3 371#undef _ctf_sequence_encoded
48d660d1 372#define _ctf_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \
f968510a 373 _src_length, _encoding, _nowrite, _elem_type_base) \
1c324e59
MD		 374 __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_length_type)); \
375 __event_len += sizeof(_length_type); \
376 __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
377 __dynamic_len[__dynamic_len_idx] = (_src_length); \
378 __event_len += sizeof(_type) * __dynamic_len[__dynamic_len_idx]; \
379 __dynamic_len_idx++;
380
4774c8f3 381#undef _ctf_string
180901e6 382#define _ctf_string(_item, _src, _nowrite) \
24a39530
PP		 383 __event_len += __dynamic_len[__dynamic_len_idx++] = \
384 strlen((_src) ? (_src) : __LTTNG_UST_NULL_STRING) + 1;
1c324e59 385
c785c634
MD		 386#undef _ctf_enum
387#define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \
388 _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite)
389
1c324e59 390#undef TP_ARGS
2eda209b 391#define TP_ARGS(...) __VA_ARGS__
1c324e59
MD		 392
393#undef TP_FIELDS
2eda209b 394#define TP_FIELDS(...) __VA_ARGS__
1c324e59
MD		 395
396#undef TRACEPOINT_EVENT_CLASS
a8909ba5
PW		 397#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
398static inline lttng_ust_notrace \
399size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, _TP_ARGS_DATA_PROTO(_args)); \
400static inline \
401size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, _TP_ARGS_DATA_PROTO(_args)) \
1c324e59
MD		 402{ \
403 size_t __event_len = 0; \
404 unsigned int __dynamic_len_idx = 0; \
405 \
406 if (0) \
407 (void) __dynamic_len_idx; /* don't warn if unused */ \
408 _fields \
409 return __event_len; \
410}
411
412#include TRACEPOINT_INCLUDE
413
1ddfd641
MD		 414/*
415 * Stage 3.1 of tracepoint event generation.
416 *
417 * Create static inline function that layout the filter stack data.
4774c8f3 418 * We make both write and nowrite data available to the filter.
1ddfd641
MD		 419 */
420
421/* Reset all macros within TRACEPOINT_EVENT */
422#include <lttng/ust-tracepoint-event-reset.h>
4774c8f3
MD		 423#include <lttng/ust-tracepoint-event-write.h>
424#include <lttng/ust-tracepoint-event-nowrite.h>
1ddfd641 425
4774c8f3 426#undef _ctf_integer_ext
180901e6 427#define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \
fa099471 428 if (lttng_is_signed_type(_type)) { \
3ebeea0d
MD		 429 int64_t __ctf_tmp_int64; \
430 switch (sizeof(_type)) { \
431 case 1: \
432 { \
433 union { _type t; int8_t v; } __tmp = { (_type) (_src) }; \
434 __ctf_tmp_int64 = (int64_t) __tmp.v; \
435 break; \
436 } \
437 case 2: \
438 { \
439 union { _type t; int16_t v; } __tmp = { (_type) (_src) }; \
39ad74cf
MD		 440 if (_byte_order != BYTE_ORDER) \
441 __tmp.v = bswap_16(__tmp.v); \
3ebeea0d
MD		 442 __ctf_tmp_int64 = (int64_t) __tmp.v; \
443 break; \
444 } \
445 case 4: \
446 { \
447 union { _type t; int32_t v; } __tmp = { (_type) (_src) }; \
39ad74cf
MD		 448 if (_byte_order != BYTE_ORDER) \
449 __tmp.v = bswap_32(__tmp.v); \
3ebeea0d
MD		 450 __ctf_tmp_int64 = (int64_t) __tmp.v; \
451 break; \
452 } \
453 case 8: \
454 { \
455 union { _type t; int64_t v; } __tmp = { (_type) (_src) }; \
39ad74cf
MD		 456 if (_byte_order != BYTE_ORDER) \
457 __tmp.v = bswap_64(__tmp.v); \
3ebeea0d
MD		 458 __ctf_tmp_int64 = (int64_t) __tmp.v; \
459 break; \
460 } \
461 default: \
462 abort(); \
463 }; \
fa099471
MD		 464 memcpy(__stack_data, &__ctf_tmp_int64, sizeof(int64_t)); \
465 } else { \
3ebeea0d
MD		 466 uint64_t __ctf_tmp_uint64; \
467 switch (sizeof(_type)) { \
468 case 1: \
469 { \
470 union { _type t; uint8_t v; } __tmp = { (_type) (_src) }; \
471 __ctf_tmp_uint64 = (uint64_t) __tmp.v; \
472 break; \
473 } \
474 case 2: \
475 { \
476 union { _type t; uint16_t v; } __tmp = { (_type) (_src) }; \
39ad74cf
MD		 477 if (_byte_order != BYTE_ORDER) \
478 __tmp.v = bswap_16(__tmp.v); \
3ebeea0d
MD		 479 __ctf_tmp_uint64 = (uint64_t) __tmp.v; \
480 break; \
481 } \
482 case 4: \
483 { \
484 union { _type t; uint32_t v; } __tmp = { (_type) (_src) }; \
39ad74cf
MD		 485 if (_byte_order != BYTE_ORDER) \
486 __tmp.v = bswap_32(__tmp.v); \
3ebeea0d
MD		 487 __ctf_tmp_uint64 = (uint64_t) __tmp.v; \
488 break; \
489 } \
490 case 8: \
491 { \
492 union { _type t; uint64_t v; } __tmp = { (_type) (_src) }; \
39ad74cf
MD		 493 if (_byte_order != BYTE_ORDER) \
494 __tmp.v = bswap_64(__tmp.v); \
3ebeea0d
MD		 495 __ctf_tmp_uint64 = (uint64_t) __tmp.v; \
496 break; \
497 } \
498 default: \
499 abort(); \
500 }; \
fa099471
MD		 501 memcpy(__stack_data, &__ctf_tmp_uint64, sizeof(uint64_t)); \
502 } \
1ddfd641
MD		 503 __stack_data += sizeof(int64_t);
504
4774c8f3 505#undef _ctf_float
180901e6 506#define _ctf_float(_type, _item, _src, _nowrite) \
fa099471
MD		 507 { \
508 double __ctf_tmp_double = (double) (_type) (_src); \
509 memcpy(__stack_data, &__ctf_tmp_double, sizeof(double)); \
510 __stack_data += sizeof(double); \
511 }
1ddfd641 512
4774c8f3 513#undef _ctf_array_encoded
f3ec4cb5
MD		 514#define _ctf_array_encoded(_type, _item, _src, _byte_order, _length, \
515 _encoding, _nowrite, _elem_type_base) \
fa099471
MD		 516 { \
517 unsigned long __ctf_tmp_ulong = (unsigned long) (_length); \
59034aab 518 const void *__ctf_tmp_ptr = (_src); \
fa099471
MD		 519 memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \
520 __stack_data += sizeof(unsigned long); \
b1239ad6
MD		 521 memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \
522 __stack_data += sizeof(void *); \
fa099471 523 }
1ddfd641 524
4774c8f3 525#undef _ctf_sequence_encoded
48d660d1 526#define _ctf_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \
f968510a 527 _src_length, _encoding, _nowrite, _elem_type_base) \
fa099471
MD		 528 { \
529 unsigned long __ctf_tmp_ulong = (unsigned long) (_src_length); \
59034aab 530 const void *__ctf_tmp_ptr = (_src); \
fa099471
MD		 531 memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \
532 __stack_data += sizeof(unsigned long); \
b1239ad6
MD		 533 memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \
534 __stack_data += sizeof(void *); \
fa099471 535 }
1ddfd641 536
4774c8f3 537#undef _ctf_string
180901e6 538#define _ctf_string(_item, _src, _nowrite) \
fa099471 539 { \
24a39530
PP		 540 const void *__ctf_tmp_ptr = \
541 ((_src) ? (_src) : __LTTNG_UST_NULL_STRING); \
b1239ad6
MD		 542 memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *)); \
543 __stack_data += sizeof(void *); \
fa099471 544 }
1ddfd641 545
c785c634
MD		 546#undef _ctf_enum
547#define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \
548 _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite)
549
1ddfd641
MD		 550#undef TP_ARGS
551#define TP_ARGS(...) __VA_ARGS__
552
553#undef TP_FIELDS
554#define TP_FIELDS(...) __VA_ARGS__
555
556#undef TRACEPOINT_EVENT_CLASS
557#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
558static inline \
559void __event_prepare_filter_stack__##_provider##___##_name(char *__stack_data,\
560 _TP_ARGS_DATA_PROTO(_args)) \
561{ \
562 _fields \
563}
564
565#include TRACEPOINT_INCLUDE
566
1c324e59 567/*
df854e41 568 * Stage 4 of tracepoint event generation.
1c324e59
MD		 569 *
570 * Create static inline function that calculates event payload alignment.
571 */
572
573/* Reset all macros within TRACEPOINT_EVENT */
574#include <lttng/ust-tracepoint-event-reset.h>
4774c8f3 575#include <lttng/ust-tracepoint-event-write.h>
1c324e59 576
4774c8f3 577#undef _ctf_integer_ext
180901e6 578#define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \
1c324e59
MD		 579 __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type));
580
4774c8f3 581#undef _ctf_float
180901e6 582#define _ctf_float(_type, _item, _src, _nowrite) \
1c324e59
MD		 583 __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type));
584
4774c8f3 585#undef _ctf_array_encoded
f3ec4cb5
MD		 586#define _ctf_array_encoded(_type, _item, _src, _byte_order, _length, \
587 _encoding, _nowrite, _elem_type_base) \
1c324e59
MD		 588 __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type));
589
4774c8f3 590#undef _ctf_sequence_encoded
48d660d1 591#define _ctf_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \
f968510a 592 _src_length, _encoding, _nowrite, _elem_type_base) \
1c324e59
MD		 593 __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_length_type)); \
594 __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type));
595
4774c8f3 596#undef _ctf_string
180901e6 597#define _ctf_string(_item, _src, _nowrite)
1c324e59 598
c785c634
MD		 599#undef _ctf_enum
600#define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \
601 _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite)
602
1c324e59 603#undef TP_ARGS
2eda209b 604#define TP_ARGS(...) __VA_ARGS__
1c324e59
MD		 605
606#undef TP_FIELDS
2eda209b 607#define TP_FIELDS(...) __VA_ARGS__
1c324e59
MD		 608
609#undef TRACEPOINT_EVENT_CLASS
610#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
a8909ba5
PW		 611static inline lttng_ust_notrace \
612size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args)); \
1c324e59
MD		 613static inline \
614size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args)) \
615{ \
616 size_t __event_align = 1; \
617 _fields \
618 return __event_align; \
619}
620
621#include TRACEPOINT_INCLUDE
622
623
624/*
df854e41 625 * Stage 5 of tracepoint event generation.
1c324e59
MD		 626 *
627 * Create the probe function. This function calls event size calculation
628 * and writes event data into the buffer.
629 */
630
631/* Reset all macros within TRACEPOINT_EVENT */
632#include <lttng/ust-tracepoint-event-reset.h>
4774c8f3 633#include <lttng/ust-tracepoint-event-write.h>
1c324e59 634
4774c8f3 635#undef _ctf_integer_ext
180901e6 636#define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \
1c324e59
MD		 637 { \
638 _type __tmp = (_src); \
639 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__tmp));\
640 __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp));\
641 }
642
4774c8f3 643#undef _ctf_float
180901e6 644#define _ctf_float(_type, _item, _src, _nowrite) \
1c324e59
MD		 645 { \
646 _type __tmp = (_src); \
647 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__tmp));\
648 __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp));\
649 }
650
4774c8f3 651#undef _ctf_array_encoded
f3ec4cb5
MD		 652#define _ctf_array_encoded(_type, _item, _src, _byte_order, _length, \
653 _encoding, _nowrite, _elem_type_base) \
1c324e59
MD		 654 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \
655 __chan->ops->event_write(&__ctx, _src, sizeof(_type) * (_length));
656
4774c8f3 657#undef _ctf_sequence_encoded
48d660d1 658#define _ctf_sequence_encoded(_type, _item, _src, _byte_order, _length_type, \
f968510a 659 _src_length, _encoding, _nowrite, _elem_type_base) \
1c324e59 660 { \
d71b57b9 661 _length_type __tmpl = __stackvar.__dynamic_len[__dynamic_len_idx]; \
1c324e59
MD		 662 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_length_type));\
663 __chan->ops->event_write(&__ctx, &__tmpl, sizeof(_length_type));\
664 } \
665 lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \
666 __chan->ops->event_write(&__ctx, _src, \
667 sizeof(_type) * __get_dynamic_len(dest));
668
a44c74d9
MD		 669/*
670 * __chan->ops->u.has_strcpy is a flag letting us know if the LTTng-UST
671 * tracepoint provider ABI implements event_strcpy. This dynamic check
672 * can be removed when the tracepoint provider ABI moves to 2.
673 */
674#if (LTTNG_UST_PROVIDER_MAJOR > 1)
675#error "Tracepoint probe provider major version has changed. Please remove dynamic check for has_strcpy."
676#endif
677
4774c8f3 678#undef _ctf_string
180901e6 679#define _ctf_string(_item, _src, _nowrite) \
24a39530
PP		 680 { \
681 const char *__ctf_tmp_string = \
682 ((_src) ? (_src) : __LTTNG_UST_NULL_STRING); \
683 lib_ring_buffer_align_ctx(&__ctx, \
684 lttng_alignof(*__ctf_tmp_string)); \
685 if (__chan->ops->u.has_strcpy) \
686 __chan->ops->event_strcpy(&__ctx, __ctf_tmp_string, \
687 __get_dynamic_len(dest)); \
688 else \
689 __chan->ops->event_write(&__ctx, __ctf_tmp_string, \
690 __get_dynamic_len(dest)); \
691 }
692
1c324e59 693
c785c634
MD		 694#undef _ctf_enum
695#define _ctf_enum(_provider, _name, _type, _item, _src, _nowrite) \
696 _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, _nowrite)
697
1c324e59
MD		 698/* Beware: this get len actually consumes the len value */
699#undef __get_dynamic_len
d71b57b9 700#define __get_dynamic_len(field) __stackvar.__dynamic_len[__dynamic_len_idx++]
1c324e59
MD		 701
702#undef TP_ARGS
2eda209b 703#define TP_ARGS(...) __VA_ARGS__
1c324e59
MD		 704
705#undef TP_FIELDS
2eda209b 706#define TP_FIELDS(...) __VA_ARGS__
1c324e59 707
95c25348
PW		 708/*
709 * For state dump, check that "session" argument (mandatory) matches the
710 * session this event belongs to. Ensures that we write state dump data only
711 * into the started session, not into all sessions.
712 */
713#undef _TP_SESSION_CHECK
714#ifdef TP_SESSION_CHECK
715#define _TP_SESSION_CHECK(session, csession) (session == csession)
716#else /* TP_SESSION_CHECK */
717#define _TP_SESSION_CHECK(session, csession) 1
718#endif /* TP_SESSION_CHECK */
719
97904b41
MD		 720/*
721 * Use of __builtin_return_address(0) sometimes seems to cause stack
722 * corruption on 32-bit PowerPC. Disable this feature on that
723 * architecture for now by always using the NULL value for the ip
724 * context.
725 */
5dadb547
MD		 726#undef _TP_IP_PARAM
727#ifdef TP_IP_PARAM
e1d09f9e 728#define _TP_IP_PARAM(x) (x)
5dadb547 729#else /* TP_IP_PARAM */
97904b41
MD		 730
731#if defined(__PPC__) && !defined(__PPC64__)
732#define _TP_IP_PARAM(x) NULL
733#else /* #if defined(__PPC__) && !defined(__PPC64__) */
e1d09f9e 734#define _TP_IP_PARAM(x) __builtin_return_address(0)
97904b41
MD		 735#endif /* #else #if defined(__PPC__) && !defined(__PPC64__) */
736
5dadb547
MD		 737#endif /* TP_IP_PARAM */
738
1ddfd641
MD		 739/*
740 * Using twice size for filter stack data to hold size and pointer for
741 * each field (worse case). For integers, max size required is 64-bit.
742 * Same for double-precision floats. Those fit within
743 * 2*sizeof(unsigned long) for all supported architectures.
61ce3223 744 * Perform UNION (||) of filter runtime list.
1ddfd641 745 */
1c324e59
MD		 746#undef TRACEPOINT_EVENT_CLASS
747#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
a8909ba5
PW		 748static lttng_ust_notrace \
749void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args)); \
750static \
751void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args)) \
1c324e59 752{ \
53569322 753 struct lttng_event *__event = (struct lttng_event *) __tp_data; \
7dd08bec 754 struct lttng_channel *__chan = __event->chan; \
f280cb51 755 struct lttng_ust_lib_ring_buffer_ctx __ctx; \
53569322 756 struct lttng_stack_ctx __lttng_ctx; \
1c324e59
MD		 757 size_t __event_len, __event_align; \
758 size_t __dynamic_len_idx = 0; \
d71b57b9 759 union { \
1c80c909
MD		 760 size_t __dynamic_len[_TP_ARRAY_SIZE(__event_fields___##_provider##___##_name) - 1]; \
761 char __filter_stack_data[2 * sizeof(unsigned long) * (_TP_ARRAY_SIZE(__event_fields___##_provider##___##_name) - 1)]; \
d71b57b9 762 } __stackvar; \
1c324e59
MD		 763 int __ret; \
764 \
765 if (0) \
766 (void) __dynamic_len_idx; /* don't warn if unused */ \
95c25348
PW		 767 if (!_TP_SESSION_CHECK(session, __chan->session)) \
768 return; \
1c324e59
MD		 769 if (caa_unlikely(!CMM_ACCESS_ONCE(__chan->session->active))) \
770 return; \
771 if (caa_unlikely(!CMM_ACCESS_ONCE(__chan->enabled))) \
772 return; \
773 if (caa_unlikely(!CMM_ACCESS_ONCE(__event->enabled))) \
774 return; \
1b436e01
MD		 775 if (caa_unlikely(!TP_RCU_LINK_TEST())) \
776 return; \
e58095ef 777 if (caa_unlikely(!cds_list_empty(&__event->bytecode_runtime_head))) { \
f488575f 778 struct lttng_bytecode_runtime *bc_runtime; \
dcdeaff0 779 int __filter_record = __event->has_enablers_without_bytecode; \
f488575f 780 \
1ddfd641 781 __event_prepare_filter_stack__##_provider##___##_name(__stackvar.__filter_stack_data, \
f488575f 782 _TP_ARGS_DATA_VAR(_args)); \
000b8662 783 tp_list_for_each_entry_rcu(bc_runtime, &__event->bytecode_runtime_head, node) { \
61ce3223 784 if (caa_unlikely(bc_runtime->filter(bc_runtime, \
8a92ed2a
MD		 785 __stackvar.__filter_stack_data) & LTTNG_FILTER_RECORD_FLAG)) \
786 __filter_record = 1; \
f488575f 787 } \
8a92ed2a 788 if (caa_likely(!__filter_record)) \
61ce3223 789 return; \
1ddfd641
MD		 790 } \
791 __event_len = __event_get_size__##_provider##___##_name(__stackvar.__dynamic_len, \
1c324e59
MD		 792 _TP_ARGS_DATA_VAR(_args)); \
793 __event_align = __event_get_align__##_provider##___##_name(_TP_ARGS_VAR(_args)); \
53569322
MD		 794 memset(&__lttng_ctx, 0, sizeof(__lttng_ctx)); \
795 __lttng_ctx.event = __event; \
796 __lttng_ctx.chan_ctx = tp_rcu_dereference_bp(__chan->ctx); \
797 __lttng_ctx.event_ctx = tp_rcu_dereference_bp(__event->ctx); \
1c324e59 798 lib_ring_buffer_ctx_init(&__ctx, __chan->chan, __event, __event_len, \
53569322 799 __event_align, -1, __chan->handle, &__lttng_ctx); \
e1d09f9e 800 __ctx.ip = _TP_IP_PARAM(TP_IP_PARAM); \
1c324e59
MD		 801 __ret = __chan->ops->event_reserve(&__ctx, __event->id); \
802 if (__ret < 0) \
803 return; \
804 _fields \
805 __chan->ops->event_commit(&__ctx); \
806}
807
808#include TRACEPOINT_INCLUDE
809
810#undef __get_dynamic_len
811
68755429
MD		 812/*
813 * Stage 5.1 of tracepoint event generation.
814 *
815 * Create probe signature
816 */
817
818/* Reset all macros within TRACEPOINT_EVENT */
819#include <lttng/ust-tracepoint-event-reset.h>
820
821#undef TP_ARGS
2eda209b 822#define TP_ARGS(...) __VA_ARGS__
9eb06182
MD		 823
824#define _TP_EXTRACT_STRING2(...) #__VA_ARGS__
68755429
MD		 825
826#undef TRACEPOINT_EVENT_CLASS
827#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
ff82b7c1 828static const char __tp_event_signature___##_provider##___##_name[] = \
9eb06182 829 _TP_EXTRACT_STRING2(_args);
68755429
MD		 830
831#include TRACEPOINT_INCLUDE
832
9eb06182
MD		 833#undef _TP_EXTRACT_STRING2
834
05ceaafd 835/*
882a56d7 836 * Stage 6 of tracepoint event generation.
1c324e59 837 *
df854e41
MD		 838 * Tracepoint loglevel mapping definition generation. We generate a
839 * symbol for each mapping for a provider/event to ensure at most a 1 to
840 * 1 mapping between events and loglevels. If the symbol is repeated,
841 * the compiler will complain.
05ceaafd
MD		 842 */
843
844/* Reset all macros within TRACEPOINT_EVENT */
845#include <lttng/ust-tracepoint-event-reset.h>
846
4ea4f80e
MD		 847/*
848 * Declare _loglevel___##__provider##___##__name as non-static, with
849 * hidden visibility for c++ handling of weakref. We do a weakref to the
850 * symbol in a later stage, which requires that the symbol is not
851 * mangled.
852 */
853#ifdef __cplusplus
854#define LTTNG_TP_EXTERN_C extern "C"
855#else
856#define LTTNG_TP_EXTERN_C
857#endif
858
05ceaafd 859#undef TRACEPOINT_LOGLEVEL
457a6b58
MD		 860#define TRACEPOINT_LOGLEVEL(__provider, __name, __loglevel) \
861static const int _loglevel_value___##__provider##___##__name = __loglevel; \
4ea4f80e
MD		 862LTTNG_TP_EXTERN_C const int *_loglevel___##__provider##___##__name \
863 __attribute__((visibility("hidden"))) = \
457a6b58 864 &_loglevel_value___##__provider##___##__name;
df854e41
MD		 865
866#include TRACEPOINT_INCLUDE
867
4ea4f80e
MD		 868#ifdef __cplusplus
869#undef LTTNG_TP_EXTERN_C
870#endif
871
6ddc916d
MD		 872/*
873 * Stage 6.1 of tracepoint event generation.
874 *
875 * Tracepoint UML URI info.
876 */
877
878/* Reset all macros within TRACEPOINT_EVENT */
879#include <lttng/ust-tracepoint-event-reset.h>
880
4ea4f80e
MD		 881/*
882 * Declare _model_emf_uri___##__provider##___##__name as non-static,
883 * with hidden visibility for c++ handling of weakref. We do a weakref
884 * to the symbol in a later stage, which requires that the symbol is not
885 * mangled.
886 */
887#ifdef __cplusplus
888#define LTTNG_TP_EXTERN_C extern "C"
889#else
890#define LTTNG_TP_EXTERN_C
891#endif
892
6ddc916d
MD		 893#undef TRACEPOINT_MODEL_EMF_URI
894#define TRACEPOINT_MODEL_EMF_URI(__provider, __name, __uri) \
4ea4f80e
MD		 895LTTNG_TP_EXTERN_C const char *_model_emf_uri___##__provider##___##__name \
896 __attribute__((visibility("hidden"))) = __uri \
6ddc916d
MD		 897
898#include TRACEPOINT_INCLUDE
899
4ea4f80e
MD		 900#ifdef __cplusplus
901#undef LTTNG_TP_EXTERN_C
902#endif
903
df854e41 904/*
882a56d7 905 * Stage 7.1 of tracepoint event generation.
df854e41
MD		 906 *
907 * Create events description structures. We use a weakref because
908 * loglevels are optional. If not declared, the event will point to the
909 * a loglevel that contains NULL.
910 */
911
912/* Reset all macros within TRACEPOINT_EVENT */
913#include <lttng/ust-tracepoint-event-reset.h>
914
915#undef TRACEPOINT_EVENT_INSTANCE
916#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
882a56d7
MD		 917static const int * \
918 __ref_loglevel___##_provider##___##_name \
919 __attribute__((weakref ("_loglevel___" #_provider "___" #_name))); \
6ddc916d
MD		 920static const char * \
921 __ref_model_emf_uri___##_provider##___##_name \
922 __attribute__((weakref ("_model_emf_uri___" #_provider "___" #_name)));\
ff82b7c1 923static const struct lttng_event_desc __event_desc___##_provider##_##_name = { \
df854e41 924 .name = #_provider ":" #_name, \
fbdeb5ec 925 .probe_callback = (void (*)(void)) &__event_probe__##_provider##___##_template,\
46d52200
ZT		 926 .ctx = NULL, \
927 .fields = __event_fields___##_provider##___##_template, \
1c80c909 928 .nr_fields = _TP_ARRAY_SIZE(__event_fields___##_provider##___##_template) - 1, \
882a56d7 929 .loglevel = &__ref_loglevel___##_provider##___##_name, \
68755429 930 .signature = __tp_event_signature___##_provider##___##_template, \
c785c634
MD		 931 .u = { \
932 .ext = { \
933 .model_emf_uri = &__ref_model_emf_uri___##_provider##___##_name, \
934 }, \
935 }, \
df854e41
MD		 936};
937
938#include TRACEPOINT_INCLUDE
05ceaafd 939
df854e41 940/*
882a56d7 941 * Stage 7.2 of tracepoint event generation.
df854e41
MD		 942 *
943 * Create array of events.
944 */
945
946/* Reset all macros within TRACEPOINT_EVENT */
947#include <lttng/ust-tracepoint-event-reset.h>
948
949#undef TRACEPOINT_EVENT_INSTANCE
950#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
951 &__event_desc___##_provider##_##_name,
952
953static const struct lttng_event_desc *_TP_COMBINE_TOKENS(__event_desc___, TRACEPOINT_PROVIDER)[] = {
05ceaafd 954#include TRACEPOINT_INCLUDE
1c80c909 955 NULL, /* Dummy, C99 forbids 0-len array. */
05ceaafd
MD		 956};
957
df854e41 958
05ceaafd 959/*
882a56d7 960 * Stage 8 of tracepoint event generation.
05ceaafd
MD		 961 *
962 * Create a toplevel descriptor for the whole probe.
963 */
964
965/* non-const because list head will be modified when registered. */
966static struct lttng_probe_desc _TP_COMBINE_TOKENS(__probe_desc___, TRACEPOINT_PROVIDER) = {
df854e41 967 .provider = __tp_stringify(TRACEPOINT_PROVIDER),
05ceaafd 968 .event_desc = _TP_COMBINE_TOKENS(__event_desc___, TRACEPOINT_PROVIDER),
1c80c909 969 .nr_events = _TP_ARRAY_SIZE(_TP_COMBINE_TOKENS(__event_desc___, TRACEPOINT_PROVIDER)) - 1,
46d52200
ZT		 970 .head = { NULL, NULL },
971 .lazy_init_head = { NULL, NULL },
972 .lazy = 0,
71d31690
MD		 973 .major = LTTNG_UST_PROVIDER_MAJOR,
974 .minor = LTTNG_UST_PROVIDER_MINOR,
05ceaafd
MD		 975};
976
f0cc794d
MD		 977static int _TP_COMBINE_TOKENS(__probe_register_refcount___, TRACEPOINT_PROVIDER);
978
05ceaafd 979/*
882a56d7 980 * Stage 9 of tracepoint event generation.
05ceaafd 981 *
1c324e59 982 * Register/unregister probes at module load/unload.
628e1d81
MD		 983 *
984 * Generate the constructor as an externally visible symbol for use when
985 * linking the probe statically.
f0cc794d
MD		 986 *
987 * Register refcount is protected by libc dynamic loader mutex.
1c324e59
MD		 988 */
989
990/* Reset all macros within TRACEPOINT_EVENT */
991#include <lttng/ust-tracepoint-event-reset.h>
a8909ba5
PW		 992static void lttng_ust_notrace __attribute__((constructor))
993_TP_COMBINE_TOKENS(__lttng_events_init__, TRACEPOINT_PROVIDER)(void);
994static void
1c324e59
MD		 995_TP_COMBINE_TOKENS(__lttng_events_init__, TRACEPOINT_PROVIDER)(void)
996{
997 int ret;
998
f0cc794d
MD		 999 if (_TP_COMBINE_TOKENS(__probe_register_refcount___,
1000 TRACEPOINT_PROVIDER)++) {
1001 return;
1002 }
e8bd1da7
MD		 1003 /*
1004 * __tracepoint_provider_check_ ## TRACEPOINT_PROVIDER() is a
1005 * static inline function that ensures every probe PROVIDER
1006 * argument match the provider within which they appear. It
1007 * calls empty static inline functions, and therefore has no
1008 * runtime effect. However, if it detects an error, a linker
1009 * error will appear.
1010 */
1011 _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)();
7dd08bec 1012 ret = lttng_probe_register(&_TP_COMBINE_TOKENS(__probe_desc___, TRACEPOINT_PROVIDER));
7d381d6e
MD		 1013 if (ret) {
1014 fprintf(stderr, "LTTng-UST: Error (%d) while registering tracepoint probe. Duplicate registration of tracepoint probes having the same name is not allowed.\n", ret);
1015 abort();
1016 }
1c324e59
MD		 1017}
1018
a8909ba5
PW		 1019static void lttng_ust_notrace __attribute__((destructor))
1020_TP_COMBINE_TOKENS(__lttng_events_exit__, TRACEPOINT_PROVIDER)(void);
1021static void
1c324e59
MD		 1022_TP_COMBINE_TOKENS(__lttng_events_exit__, TRACEPOINT_PROVIDER)(void)
1023{
f0cc794d
MD		 1024 if (--_TP_COMBINE_TOKENS(__probe_register_refcount___,
1025 TRACEPOINT_PROVIDER)) {
1026 return;
1027 }
7dd08bec 1028 lttng_probe_unregister(&_TP_COMBINE_TOKENS(__probe_desc___, TRACEPOINT_PROVIDER));
1c324e59 1029}
628e1d81
MD		 1030
1031int _TP_COMBINE_TOKENS(__tracepoint_provider_, TRACEPOINT_PROVIDER);
LTTng 2.0 Userspace Tracer
This page took 0.081895 seconds and 4 git commands to generate.