projects / lttng-modules.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Refactoring: introduce lttng_get_event_ht_from_enabler
[lttng-modules.git] / include / lttng / events-internal.h
CommitLineData
92bc1e23
MD		 1/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
2 *
3 * lttng/events-internal.h
4 *
5 * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 */
7
8#ifndef _LTTNG_EVENTS_INTERNAL_H
9#define _LTTNG_EVENTS_INTERNAL_H
10
c190d76e
MJ		 11#include <wrapper/compiler_attributes.h>
12
437d5aa5
MD		 13#include <lttng/events.h>
14
344fe0f6 15struct lttng_syscall_filter;
7c1ba2ca
MD		 16struct lttng_metadata_cache;
17struct perf_event;
18struct perf_event_attr;
e20c0fec 19struct lttng_kernel_ring_buffer_config;
344fe0f6 20
311e655a
MD		 21enum lttng_enabler_format_type {
22 LTTNG_ENABLER_FORMAT_STAR_GLOB,
23 LTTNG_ENABLER_FORMAT_NAME,
24};
25
f7d06400
MD		 26enum channel_type {
27 PER_CPU_CHANNEL,
28 METADATA_CHANNEL,
29};
30
311e655a
MD		 31/*
32 * Objects in a linked-list of enablers, owned by an event.
33 */
34struct lttng_enabler_ref {
35 struct list_head node; /* enabler ref list */
8d554755 36 struct lttng_event_enabler_common *ref; /* backward ref */
311e655a
MD		 37};
38
e978f274
MD		 39struct lttng_krp; /* Kretprobe handling */
40
41struct lttng_uprobe_handler {
42 struct lttng_kernel_event_common *event;
43 loff_t offset;
44 struct uprobe_consumer up_consumer;
45 struct list_head node;
46};
47
48struct lttng_kprobe {
49 struct kprobe kp;
50 char *symbol_name;
51};
52
53struct lttng_uprobe {
54 struct inode *inode;
55 struct list_head head;
56};
57
58enum lttng_syscall_entryexit {
59 LTTNG_SYSCALL_ENTRY,
60 LTTNG_SYSCALL_EXIT,
61};
62
63enum lttng_syscall_abi {
64 LTTNG_SYSCALL_ABI_NATIVE,
65 LTTNG_SYSCALL_ABI_COMPAT,
66};
67
a67ba386
MD		 68struct lttng_kernel_event_common_private {
69 struct lttng_kernel_event_common *pub; /* Public event interface */
70
71 const struct lttng_kernel_event_desc *desc;
72 /* Backward references: list of lttng_enabler_ref (ref to enablers) */
73 struct list_head enablers_ref_head;
74 int registered; /* has reg'd tracepoint probe */
75 uint64_t user_token;
76
77 int has_enablers_without_filter_bytecode;
218585b9 78 /* list of struct lttng_kernel_bytecode_runtime, sorted by seqnum */
a67ba386 79 struct list_head filter_bytecode_runtime_head;
19bef247
MD		 80
81 struct hlist_node hlist_node; /* node in events hash table */
82
a67ba386
MD		 83 enum lttng_kernel_abi_instrumentation instrumentation;
84 /* Selected by instrumentation */
85 union {
86 struct lttng_kprobe kprobe;
87 struct lttng_uprobe uprobe;
88 struct {
89 struct lttng_krp *lttng_krp;
90 char *symbol_name;
91 } kretprobe;
92 struct {
93 enum lttng_syscall_entryexit entryexit;
94 enum lttng_syscall_abi abi;
95 struct hlist_node node; /* chain registered syscall event_notifier */
96 unsigned int syscall_id;
97 } syscall;
98 } u;
99};
100
101struct lttng_kernel_event_recorder_private {
102 struct lttng_kernel_event_common_private parent;
103
104 struct lttng_kernel_event_recorder *pub; /* Public event interface */
105 struct list_head node; /* Event recorder list */
a67ba386
MD		 106 struct lttng_kernel_ctx *ctx;
107 unsigned int id;
108 unsigned int metadata_dumped:1;
109};
110
111struct lttng_kernel_event_notifier_private {
112 struct lttng_kernel_event_common_private parent;
113
114 struct lttng_kernel_event_notifier *pub; /* Public event notifier interface */
115 struct lttng_event_notifier_group *group; /* weak ref */
116 size_t num_captures; /* Needed to allocate the msgpack array. */
117 uint64_t error_counter_index;
118 struct list_head node; /* Event notifier list */
a67ba386 119 struct list_head capture_bytecode_runtime_head;
a67ba386
MD		 120};
121
0bb716a8 122struct lttng_kernel_syscall_table {
f7d06400 123 unsigned int sys_enter_registered:1,
0bb716a8
MD		 124 sys_exit_registered:1;
125
126 struct hlist_head *syscall_dispatch; /* for syscall tracing */
127 struct hlist_head *compat_syscall_dispatch;
128 struct hlist_head *syscall_exit_dispatch; /* for syscall exit tracing */
129 struct hlist_head *compat_syscall_exit_dispatch;
130
131 /*
132 * Combining all unknown syscall events works as long as they
133 * are only matched by "all" syscalls enablers, but will require
134 * a design change when we allow matching by syscall number, for
135 * instance by allocating sc_tables accomodating NR_syscalls
136 * entries.
137 */
138 struct hlist_head unknown_syscall_dispatch; /* for unknown syscalls */
139 struct hlist_head compat_unknown_syscall_dispatch;
140 struct hlist_head unknown_syscall_exit_dispatch;
141 struct hlist_head compat_unknown_syscall_exit_dispatch;
142
f7d06400
MD		 143 struct lttng_syscall_filter *sc_filter;
144 int syscall_all_entry;
145 int syscall_all_exit;
146};
147
0bb716a8
MD		 148struct lttng_kernel_channel_common_private {
149 struct lttng_kernel_channel_common *pub;
150
151 struct file *file; /* File associated to channel */
152 unsigned int tstate:1; /* Transient enable state */
153
154 struct lttng_kernel_syscall_table syscall_table;
155};
156
f7d06400
MD		 157struct lttng_kernel_channel_buffer_private {
158 struct lttng_kernel_channel_common_private parent;
159
160 struct lttng_kernel_channel_buffer *pub;
161
162 unsigned int id; /* Channel ID */
163 unsigned int free_event_id; /* Next event ID to allocate */
164 int header_type; /* 0: unset, 1: compact, 2: large */
165
166 enum channel_type channel_type;
167 struct lttng_kernel_ctx *ctx;
860c213b 168 struct lttng_kernel_ring_buffer_channel *rb_chan; /* Ring buffer channel */
f7d06400
MD		 169 unsigned int metadata_dumped:1;
170 struct list_head node; /* Channel list in session */
171 struct lttng_transport *transport;
172};
173
8a445457
MD		 174enum lttng_kernel_bytecode_interpreter_ret {
175 LTTNG_KERNEL_BYTECODE_INTERPRETER_ERROR = -1,
176 LTTNG_KERNEL_BYTECODE_INTERPRETER_OK = 0,
177};
178
179enum lttng_kernel_bytecode_filter_result {
180 LTTNG_KERNEL_BYTECODE_FILTER_ACCEPT = 0,
181 LTTNG_KERNEL_BYTECODE_FILTER_REJECT = 1,
182};
183
184struct lttng_kernel_bytecode_filter_ctx {
185 enum lttng_kernel_bytecode_filter_result result;
186};
187
1efb0502
MD		 188struct lttng_interpreter_output;
189
190enum lttng_kernel_bytecode_type {
191 LTTNG_KERNEL_BYTECODE_TYPE_FILTER,
192 LTTNG_KERNEL_BYTECODE_TYPE_CAPTURE,
193};
194
0bb716a8
MD		 195enum lttng_kernel_event_enabler_type {
196 LTTNG_EVENT_ENABLER_TYPE_RECORDER,
197 LTTNG_EVENT_ENABLER_TYPE_NOTIFIER,
198};
199
1efb0502
MD		 200struct lttng_kernel_bytecode_node {
201 enum lttng_kernel_bytecode_type type;
202 struct list_head node;
8d554755 203 struct lttng_event_enabler_common *enabler;
1efb0502
MD		 204 struct {
205 uint32_t len;
206 uint32_t reloc_offset;
207 uint64_t seqnum;
208 char data[];
209 } bc;
210};
211
212struct lttng_kernel_bytecode_runtime {
213 /* Associated bytecode */
214 enum lttng_kernel_bytecode_type type;
215 struct lttng_kernel_bytecode_node *bc;
216 int (*interpreter_func)(struct lttng_kernel_bytecode_runtime *kernel_bytecode,
217 const char *interpreter_stack_data,
218 struct lttng_kernel_probe_ctx *lttng_probe_ctx,
219 void *caller_ctx);
220 int link_failed;
221 struct list_head node; /* list of bytecode runtime in event */
222 struct lttng_kernel_ctx *ctx;
223};
224
5e08a34f
MD		 225/*
226 * Enabler field, within whatever object is enabling an event. Target of
227 * backward reference.
228 */
8d554755 229struct lttng_event_enabler_common {
0bb716a8 230 enum lttng_kernel_event_enabler_type enabler_type;
5e08a34f
MD		 231 enum lttng_enabler_format_type format_type;
232
d64ca521 233 /* head list of struct lttng_kernel_bytecode_node */
5e08a34f
MD		 234 struct list_head filter_bytecode_head;
235
236 struct lttng_kernel_abi_event event_param;
237 unsigned int enabled:1;
238
239 uint64_t user_token; /* User-provided token. */
240};
241
1ae083ba 242struct lttng_event_recorder_enabler {
5b9817ae 243 struct lttng_event_enabler_common parent;
def1e304
MD		 244 struct list_head node; /* per-session list of enablers */
245 bool published; /* published in per-session list. */
f7d06400 246 struct lttng_kernel_channel_buffer *chan;
5e08a34f
MD		 247};
248
249struct lttng_event_notifier_enabler {
5b9817ae 250 struct lttng_event_enabler_common parent;
5e08a34f
MD		 251 uint64_t error_counter_index;
252 struct list_head node; /* List of event_notifier enablers */
1bbb5b2d 253 bool published; /* published in group list. */
5e08a34f
MD		 254 struct lttng_event_notifier_group *group;
255
d64ca521 256 /* head list of struct lttng_kernel_bytecode_node */
5e08a34f
MD		 257 struct list_head capture_bytecode_head;
258 uint64_t num_captures;
259};
260
0fe45627
MD		 261struct lttng_ctx_value {
262 union {
263 int64_t s64;
264 const char *str;
265 double d;
266 } u;
267};
268
269/*
270 * We need to keep this perf counter field separately from struct
271 * lttng_kernel_ctx_field because cpu hotplug needs fixed-location addresses.
272 */
273struct lttng_perf_counter_field {
274#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0))
275 struct lttng_cpuhp_node cpuhp_prepare;
276 struct lttng_cpuhp_node cpuhp_online;
277#else
278 struct notifier_block nb;
279 int hp_enable;
280#endif
281 struct perf_event_attr *attr;
282 struct perf_event **e; /* per-cpu array */
283 char *name;
284 struct lttng_kernel_event_field *event_field;
285};
286
287struct lttng_kernel_ctx_field {
288 const struct lttng_kernel_event_field *event_field;
a92e844e 289 size_t (*get_size)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx,
0fe45627 290 size_t offset);
a92e844e 291 void (*record)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx,
8a57ec02 292 struct lttng_kernel_ring_buffer_ctx *ctx,
f7d06400 293 struct lttng_kernel_channel_buffer *chan);
a92e844e 294 void (*get_value)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx,
0fe45627
MD		 295 struct lttng_ctx_value *value);
296 void (*destroy)(void *priv);
297 void *priv;
298};
299
300struct lttng_kernel_ctx {
301 struct lttng_kernel_ctx_field *fields;
302 unsigned int nr_fields;
303 unsigned int allocated_fields;
304 size_t largest_align; /* in bytes */
305};
306
8a20497f
MD		 307struct lttng_metadata_cache {
308 char *data; /* Metadata cache */
309 unsigned int cache_alloc; /* Metadata allocated size (bytes) */
310 unsigned int metadata_written; /* Number of bytes written in metadata cache */
311 atomic_t producing; /* Metadata being produced (incomplete) */
312 struct kref refcount; /* Metadata cache usage */
313 struct list_head metadata_stream; /* Metadata stream list */
314 uuid_le uuid; /* Trace session unique ID (copy) */
315 struct mutex lock; /* Produce/consume lock */
316 uint64_t version; /* Current version of the metadata */
317};
318
a44f47dd
MD		 319struct lttng_metadata_stream {
320 void *priv; /* Ring buffer private data */
321 struct lttng_metadata_cache *metadata_cache;
322 unsigned int metadata_in; /* Bytes read from the cache */
323 unsigned int metadata_out; /* Bytes consumed from stream */
324 int finalized; /* Has channel been finalized */
325 wait_queue_head_t read_wait; /* Reader buffer-level wait queue */
326 struct list_head list; /* Stream list */
327 struct lttng_transport *transport;
328 uint64_t version; /* Current version of the metadata cache */
329 bool coherent; /* Stream in a coherent state */
330};
331
4a399b76
MD		 332struct lttng_kernel_channel_buffer_ops_private {
333 struct lttng_kernel_channel_buffer_ops *pub; /* Public channel buffer ops interface */
334
860c213b 335 struct lttng_kernel_ring_buffer_channel *(*channel_create)(const char *name,
4a399b76
MD		 336 void *priv,
337 void *buf_addr,
338 size_t subbuf_size, size_t num_subbuf,
339 unsigned int switch_timer_interval,
340 unsigned int read_timer_interval);
860c213b 341 void (*channel_destroy)(struct lttng_kernel_ring_buffer_channel *chan);
e20c0fec 342 struct lttng_kernel_ring_buffer *(*buffer_read_open)(struct lttng_kernel_ring_buffer_channel *chan);
860c213b 343 int (*buffer_has_read_closed_stream)(struct lttng_kernel_ring_buffer_channel *chan);
e20c0fec 344 void (*buffer_read_close)(struct lttng_kernel_ring_buffer *buf);
4a399b76
MD		 345 /*
346 * packet_avail_size returns the available size in the current
347 * packet. Note that the size returned is only a hint, since it
348 * may change due to concurrent writes.
349 */
860c213b
MD		 350 size_t (*packet_avail_size)(struct lttng_kernel_ring_buffer_channel *chan);
351 wait_queue_head_t *(*get_writer_buf_wait_queue)(struct lttng_kernel_ring_buffer_channel *chan, int cpu);
352 wait_queue_head_t *(*get_hp_wait_queue)(struct lttng_kernel_ring_buffer_channel *chan);
353 int (*is_finalized)(struct lttng_kernel_ring_buffer_channel *chan);
354 int (*is_disabled)(struct lttng_kernel_ring_buffer_channel *chan);
e20c0fec
MD		 355 int (*timestamp_begin) (const struct lttng_kernel_ring_buffer_config *config,
356 struct lttng_kernel_ring_buffer *bufb,
4a399b76 357 uint64_t *timestamp_begin);
e20c0fec
MD		 358 int (*timestamp_end) (const struct lttng_kernel_ring_buffer_config *config,
359 struct lttng_kernel_ring_buffer *bufb,
4a399b76 360 uint64_t *timestamp_end);
e20c0fec
MD		 361 int (*events_discarded) (const struct lttng_kernel_ring_buffer_config *config,
362 struct lttng_kernel_ring_buffer *bufb,
4a399b76 363 uint64_t *events_discarded);
e20c0fec
MD		 364 int (*content_size) (const struct lttng_kernel_ring_buffer_config *config,
365 struct lttng_kernel_ring_buffer *bufb,
4a399b76 366 uint64_t *content_size);
e20c0fec
MD		 367 int (*packet_size) (const struct lttng_kernel_ring_buffer_config *config,
368 struct lttng_kernel_ring_buffer *bufb,
4a399b76 369 uint64_t *packet_size);
e20c0fec
MD		 370 int (*stream_id) (const struct lttng_kernel_ring_buffer_config *config,
371 struct lttng_kernel_ring_buffer *bufb,
4a399b76 372 uint64_t *stream_id);
e20c0fec
MD		 373 int (*current_timestamp) (const struct lttng_kernel_ring_buffer_config *config,
374 struct lttng_kernel_ring_buffer *bufb,
4a399b76 375 uint64_t *ts);
e20c0fec
MD		 376 int (*sequence_number) (const struct lttng_kernel_ring_buffer_config *config,
377 struct lttng_kernel_ring_buffer *bufb,
4a399b76 378 uint64_t *seq);
e20c0fec
MD		 379 int (*instance_id) (const struct lttng_kernel_ring_buffer_config *config,
380 struct lttng_kernel_ring_buffer *bufb,
4a399b76
MD		 381 uint64_t *id);
382};
383
b0315544
MD		 384struct lttng_counter_ops {
385 struct lib_counter *(*counter_create)(size_t nr_dimensions,
386 const size_t *max_nr_elem, /* for each dimension */
387 int64_t global_sum_step);
388 void (*counter_destroy)(struct lib_counter *counter);
389 int (*counter_add)(struct lib_counter *counter, const size_t *dimension_indexes,
390 int64_t v);
391 /*
392 * counter_read reads a specific cpu's counter if @cpu >= 0, or
393 * the global aggregation counter if @cpu == -1.
394 */
395 int (*counter_read)(struct lib_counter *counter, const size_t *dimension_indexes, int cpu,
396 int64_t *value, bool *overflow, bool *underflow);
397 /*
398 * counter_aggregate returns the total sum of all per-cpu counters and
399 * the global aggregation counter.
400 */
401 int (*counter_aggregate)(struct lib_counter *counter, const size_t *dimension_indexes,
402 int64_t *value, bool *overflow, bool *underflow);
403 int (*counter_clear)(struct lib_counter *counter, const size_t *dimension_indexes);
404};
405
406struct lttng_counter {
407 struct file *file; /* File associated to counter. */
408 struct file *owner;
409 struct lttng_counter_transport *transport;
410 struct lib_counter *counter;
411 struct lttng_counter_ops *ops;
412};
413
33af697f
MD		 414#define LTTNG_EVENT_HT_BITS 12
415#define LTTNG_EVENT_HT_SIZE (1U << LTTNG_EVENT_HT_BITS)
9190fb56 416
33af697f
MD		 417struct lttng_event_ht {
418 struct hlist_head table[LTTNG_EVENT_HT_SIZE];
9190fb56
MD		 419};
420
b0315544
MD		 421struct lttng_event_notifier_group {
422 struct file *file; /* File associated to event notifier group */
423 struct file *notif_file; /* File used to expose notifications to userspace. */
424 struct list_head node; /* event notifier group list */
425 struct list_head enablers_head; /* List of enablers */
426 struct list_head event_notifiers_head; /* List of event notifier */
33af697f 427 struct lttng_event_ht events_ht; /* Hash table of event notifiers */
b0315544
MD		 428 struct lttng_kernel_channel_buffer_ops *ops;
429 struct lttng_transport *transport;
860c213b 430 struct lttng_kernel_ring_buffer_channel *chan; /* Ring buffer channel for event notifier group. */
e20c0fec 431 struct lttng_kernel_ring_buffer *buf; /* Ring buffer for event notifier group. */
b0315544
MD		 432 wait_queue_head_t read_wait;
433 struct irq_work wakeup_pending; /* Pending wakeup irq work. */
b0315544 434
0bb716a8 435 struct lttng_kernel_syscall_table syscall_table;
b0315544
MD		 436
437 struct lttng_counter *error_counter;
438 size_t error_counter_len;
439};
440
441struct lttng_transport {
442 char *name;
443 struct module *owner;
444 struct list_head node;
445 struct lttng_kernel_channel_buffer_ops ops;
446};
447
448struct lttng_counter_transport {
449 char *name;
450 struct module *owner;
451 struct list_head node;
452 struct lttng_counter_ops ops;
453};
454
8cdc1a81
MD		 455struct lttng_kernel_session_private {
456 struct lttng_kernel_session *pub; /* Public session interface */
457
458 int been_active; /* Has trace session been active ? */
459 struct file *file; /* File associated to session */
460 struct list_head chan; /* Channel list head */
461 struct list_head events; /* Event list head */
462 struct list_head list; /* Session list */
463 unsigned int free_chan_id; /* Next chan ID to allocate */
464 uuid_le uuid; /* Trace session unique ID */
465 struct lttng_metadata_cache *metadata_cache;
466 unsigned int metadata_dumped:1,
467 tstate:1; /* Transient enable state */
468 /* List of event enablers */
469 struct list_head enablers_head;
470 /* Hash table of events */
471 struct lttng_event_ht events_ht;
472 char name[LTTNG_KERNEL_ABI_SESSION_NAME_LEN];
473 char creation_time[LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN];
474};
475
fc66bf6a
MD		 476struct lttng_id_hash_node {
477 struct hlist_node hlist;
478 int id;
479};
480
8c0393c3
MD		 481enum tracker_type {
482 TRACKER_PID,
483 TRACKER_VPID,
484 TRACKER_UID,
485 TRACKER_VUID,
486 TRACKER_GID,
487 TRACKER_VGID,
488
489 TRACKER_UNKNOWN,
490};
491
492struct lttng_kernel_id_tracker_private {
493 struct lttng_kernel_id_tracker *pub; /* Public interface */
494
495 struct lttng_kernel_session *session;
496 enum tracker_type tracker_type;
497};
498
0fe45627
MD		 499extern struct lttng_kernel_ctx *lttng_static_ctx;
500
437d5aa5
MD		 501static inline
502const struct lttng_kernel_type_integer *lttng_kernel_get_type_integer(const struct lttng_kernel_type_common *type)
503{
504 if (type->type != lttng_kernel_type_integer)
505 return NULL;
506 return container_of(type, const struct lttng_kernel_type_integer, parent);
507}
508
509static inline
510const struct lttng_kernel_type_string *lttng_kernel_get_type_string(const struct lttng_kernel_type_common *type)
511{
512 if (type->type != lttng_kernel_type_string)
513 return NULL;
514 return container_of(type, const struct lttng_kernel_type_string, parent);
515}
516
517static inline
518const struct lttng_kernel_type_enum *lttng_kernel_get_type_enum(const struct lttng_kernel_type_common *type)
519{
520 if (type->type != lttng_kernel_type_enum)
521 return NULL;
522 return container_of(type, const struct lttng_kernel_type_enum, parent);
523}
524
525static inline
526const struct lttng_kernel_type_array *lttng_kernel_get_type_array(const struct lttng_kernel_type_common *type)
527{
528 if (type->type != lttng_kernel_type_array)
529 return NULL;
530 return container_of(type, const struct lttng_kernel_type_array, parent);
531}
532
533static inline
534const struct lttng_kernel_type_sequence *lttng_kernel_get_type_sequence(const struct lttng_kernel_type_common *type)
535{
536 if (type->type != lttng_kernel_type_sequence)
537 return NULL;
538 return container_of(type, const struct lttng_kernel_type_sequence, parent);
539}
540
541static inline
542const struct lttng_kernel_type_struct *lttng_kernel_get_type_struct(const struct lttng_kernel_type_common *type)
543{
544 if (type->type != lttng_kernel_type_struct)
545 return NULL;
546 return container_of(type, const struct lttng_kernel_type_struct, parent);
547}
548
549static inline
550const struct lttng_kernel_type_variant *lttng_kernel_get_type_variant(const struct lttng_kernel_type_common *type)
551{
552 if (type->type != lttng_kernel_type_variant)
553 return NULL;
554 return container_of(type, const struct lttng_kernel_type_variant, parent);
555}
556
557static inline bool lttng_kernel_type_is_bytewise_integer(const struct lttng_kernel_type_common *type)
558{
559 const struct lttng_kernel_type_integer *type_integer = lttng_kernel_get_type_integer(type);
560
561 if (!type_integer)
562 return false;
563 switch (type_integer->size) {
c190d76e
MJ		 564 case 8:
565 lttng_fallthrough;
566 case 16:
567 lttng_fallthrough;
568 case 32:
569 lttng_fallthrough;
437d5aa5
MD		 570 case 64:
571 break;
572 default:
573 return false;
574 }
575 return true;
576}
577
8a445457
MD		 578int lttng_kernel_interpret_event_filter(const struct lttng_kernel_event_common *event,
579 const char *interpreter_stack_data,
a92e844e 580 struct lttng_kernel_probe_ctx *probe_ctx,
8a445457
MD		 581 void *event_filter_ctx);
582
5e08a34f 583static inline
1ae083ba
MD		 584struct lttng_event_enabler_common *lttng_event_recorder_enabler_as_enabler(
585 struct lttng_event_recorder_enabler *event_recorder_enabler)
5e08a34f 586{
1ae083ba 587 return &event_recorder_enabler->parent;
5e08a34f
MD		 588}
589
590static inline
8d554755 591struct lttng_event_enabler_common *lttng_event_notifier_enabler_as_enabler(
5e08a34f
MD		 592 struct lttng_event_notifier_enabler *event_notifier_enabler)
593{
5b9817ae 594 return &event_notifier_enabler->parent;
5e08a34f
MD		 595}
596
0def9170
MD		 597static inline
598struct lttng_event_ht *lttng_get_event_ht_from_enabler(struct lttng_event_enabler_common *event_enabler)
599{
600 switch (event_enabler->enabler_type) {
601 case LTTNG_EVENT_ENABLER_TYPE_RECORDER:
602 {
603 struct lttng_event_recorder_enabler *event_recorder_enabler =
604 container_of(event_enabler, struct lttng_event_recorder_enabler, parent);
605 return &event_recorder_enabler->chan->parent.session->priv->events_ht;
606 }
607 case LTTNG_EVENT_ENABLER_TYPE_NOTIFIER:
608 {
609 struct lttng_event_notifier_enabler *event_notifier_enabler =
610 container_of(event_enabler, struct lttng_event_notifier_enabler, parent);
611 return &event_notifier_enabler->group->events_ht;
612 }
613 default:
614 return NULL;
615 }
616}
617
0fe45627
MD		 618int lttng_context_init(void);
619void lttng_context_exit(void);
620int lttng_kernel_context_append(struct lttng_kernel_ctx **ctx_p,
621 const struct lttng_kernel_ctx_field *f);
622void lttng_kernel_context_remove_last(struct lttng_kernel_ctx **ctx_p);
623struct lttng_kernel_ctx_field *lttng_kernel_get_context_field_from_index(struct lttng_kernel_ctx *ctx,
624 size_t index);
625int lttng_kernel_find_context(struct lttng_kernel_ctx *ctx, const char *name);
626int lttng_kernel_get_context_index(struct lttng_kernel_ctx *ctx, const char *name);
627void lttng_kernel_destroy_context(struct lttng_kernel_ctx *ctx);
628int lttng_add_pid_to_ctx(struct lttng_kernel_ctx **ctx);
629int lttng_add_cpu_id_to_ctx(struct lttng_kernel_ctx **ctx);
630int lttng_add_procname_to_ctx(struct lttng_kernel_ctx **ctx);
631int lttng_add_prio_to_ctx(struct lttng_kernel_ctx **ctx);
632int lttng_add_nice_to_ctx(struct lttng_kernel_ctx **ctx);
633int lttng_add_vpid_to_ctx(struct lttng_kernel_ctx **ctx);
634int lttng_add_tid_to_ctx(struct lttng_kernel_ctx **ctx);
635int lttng_add_vtid_to_ctx(struct lttng_kernel_ctx **ctx);
636int lttng_add_ppid_to_ctx(struct lttng_kernel_ctx **ctx);
637int lttng_add_vppid_to_ctx(struct lttng_kernel_ctx **ctx);
638int lttng_add_hostname_to_ctx(struct lttng_kernel_ctx **ctx);
639int lttng_add_interruptible_to_ctx(struct lttng_kernel_ctx **ctx);
640int lttng_add_need_reschedule_to_ctx(struct lttng_kernel_ctx **ctx);
641#if defined(CONFIG_PREEMPT_RT_FULL) || defined(CONFIG_PREEMPT)
642int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx);
643#else
644static inline
645int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx)
646{
647 return -ENOSYS;
648}
649#endif
650#ifdef CONFIG_PREEMPT_RT_FULL
651int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx);
652#else
653static inline
654int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx)
655{
656 return -ENOSYS;
657}
658#endif
659
660int lttng_add_callstack_to_ctx(struct lttng_kernel_ctx **ctx, int type);
661
662#if defined(CONFIG_CGROUPS) && \
663 ((LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) || \
664 LTTNG_UBUNTU_KERNEL_RANGE(4,4,0,0, 4,5,0,0))
665int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx);
666#else
667static inline
668int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx)
669{
670 return -ENOSYS;
671}
672#endif
673
674#if defined(CONFIG_IPC_NS) && \
675 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
676int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx);
677#else
678static inline
679int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx)
680{
681 return -ENOSYS;
682}
683#endif
684
685#if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \
686 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
687int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx);
688#else
689static inline
690int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx)
691{
692 return -ENOSYS;
693}
694#endif
695
696#if defined(CONFIG_NET_NS) && \
697 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
698int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx);
699#else
700static inline
701int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx)
702{
703 return -ENOSYS;
704}
705#endif
706
707#if defined(CONFIG_PID_NS) && \
708 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
709int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx);
710#else
711static inline
712int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx)
713{
714 return -ENOSYS;
715}
716#endif
717
718#if defined(CONFIG_USER_NS) && \
719 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
720int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx);
721#else
722static inline
723int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx)
724{
725 return -ENOSYS;
726}
727#endif
728
729#if defined(CONFIG_UTS_NS) && \
730 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
731int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx);
732#else
733static inline
734int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx)
735{
736 return -ENOSYS;
737}
738#endif
739
740#if defined(CONFIG_TIME_NS) && \
fce87a6e
MJ		 741 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0) || \
742 LTTNG_RHEL_KERNEL_RANGE(4,18,0,305,0,0, 4,19,0,0,0,0))
0fe45627
MD		 743int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx);
744#else
745static inline
746int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx)
747{
748 return -ENOSYS;
749}
750#endif
751
752int lttng_add_uid_to_ctx(struct lttng_kernel_ctx **ctx);
753int lttng_add_euid_to_ctx(struct lttng_kernel_ctx **ctx);
754int lttng_add_suid_to_ctx(struct lttng_kernel_ctx **ctx);
755int lttng_add_gid_to_ctx(struct lttng_kernel_ctx **ctx);
756int lttng_add_egid_to_ctx(struct lttng_kernel_ctx **ctx);
757int lttng_add_sgid_to_ctx(struct lttng_kernel_ctx **ctx);
758int lttng_add_vuid_to_ctx(struct lttng_kernel_ctx **ctx);
759int lttng_add_veuid_to_ctx(struct lttng_kernel_ctx **ctx);
760int lttng_add_vsuid_to_ctx(struct lttng_kernel_ctx **ctx);
761int lttng_add_vgid_to_ctx(struct lttng_kernel_ctx **ctx);
762int lttng_add_vegid_to_ctx(struct lttng_kernel_ctx **ctx);
763int lttng_add_vsgid_to_ctx(struct lttng_kernel_ctx **ctx);
764
765#if defined(CONFIG_PERF_EVENTS)
766int lttng_add_perf_counter_to_ctx(uint32_t type,
767 uint64_t config,
768 const char *name,
769 struct lttng_kernel_ctx **ctx);
770int lttng_cpuhp_perf_counter_online(unsigned int cpu,
771 struct lttng_cpuhp_node *node);
772int lttng_cpuhp_perf_counter_dead(unsigned int cpu,
773 struct lttng_cpuhp_node *node);
774#else
775static inline
776int lttng_add_perf_counter_to_ctx(uint32_t type,
777 uint64_t config,
778 const char *name,
779 struct lttng_kernel_ctx **ctx)
780{
781 return -ENOSYS;
782}
783static inline
784int lttng_cpuhp_perf_counter_online(unsigned int cpu,
785 struct lttng_cpuhp_node *node)
786{
787 return 0;
788}
789static inline
790int lttng_cpuhp_perf_counter_dead(unsigned int cpu,
791 struct lttng_cpuhp_node *node)
792{
793 return 0;
794}
795#endif
796
1ae083ba 797struct lttng_event_recorder_enabler *lttng_event_recorder_enabler_create(
311e655a
MD		 798 enum lttng_enabler_format_type format_type,
799 struct lttng_kernel_abi_event *event_param,
f7d06400 800 struct lttng_kernel_channel_buffer *chan);
def1e304 801void lttng_event_enabler_session_add(struct lttng_kernel_session *session,
1ae083ba 802 struct lttng_event_recorder_enabler *event_enabler);
7b25ab0e 803
311e655a 804struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create(
311e655a 805 enum lttng_enabler_format_type format_type,
1bbb5b2d
MD		 806 struct lttng_kernel_abi_event_notifier *event_notifier_param,
807 struct lttng_event_notifier_group *event_notifier_group);
808void lttng_event_notifier_enabler_group_add(struct lttng_event_notifier_group *event_notifier_group,
809 struct lttng_event_notifier_enabler *event_notifier_enabler);
311e655a
MD		 810int lttng_event_notifier_enabler_attach_capture_bytecode(
811 struct lttng_event_notifier_enabler *event_notifier_enabler,
812 struct lttng_kernel_abi_capture_bytecode __user *bytecode);
813
44b1abdc
MD		 814int lttng_event_enabler_enable(struct lttng_event_enabler_common *event_enabler);
815int lttng_event_enabler_disable(struct lttng_event_enabler_common *event_enabler);
816int lttng_event_enabler_attach_filter_bytecode(struct lttng_event_enabler_common *event_enabler,
817 struct lttng_kernel_abi_filter_bytecode __user *bytecode);
818void lttng_event_enabler_destroy(struct lttng_event_enabler_common *event_enabler);
819
311e655a 820int lttng_desc_match_enabler(const struct lttng_kernel_event_desc *desc,
8d554755 821 struct lttng_event_enabler_common *enabler);
311e655a
MD		 822
823void lttng_enabler_link_bytecode(const struct lttng_kernel_event_desc *event_desc,
824 struct lttng_kernel_ctx *ctx,
825 struct list_head *instance_bytecode_runtime_head,
826 struct list_head *enabler_bytecode_runtime_head);
827
828#if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)
d26015f6 829int lttng_syscalls_register_event(struct lttng_event_enabler_common *event_enabler);
9b2f1c54
MD		 830int lttng_syscall_filter_enable_event(struct lttng_kernel_event_common *event);
831int lttng_syscall_filter_disable_event(struct lttng_kernel_event_common *event);
311e655a 832
6053e75e
MD		 833int lttng_syscalls_unregister_syscall_table(struct lttng_kernel_syscall_table *syscall_table);
834int lttng_syscalls_destroy_syscall_table(struct lttng_kernel_syscall_table *syscall_table);
835
c970b655 836long lttng_syscall_table_get_active_mask(struct lttng_kernel_syscall_table *syscall_table,
311e655a 837 struct lttng_kernel_abi_syscall_mask __user *usyscall_mask);
311e655a 838#else
d26015f6 839static inline int lttng_syscalls_register_event(struct lttng_event_enabler_common *event_enabler)
311e655a
MD		 840{
841 return -ENOSYS;
842}
843
9b2f1c54 844static inline int lttng_syscall_filter_enable_event(struct lttng_kernel_event_common *event)
311e655a 845{
6053e75e 846 return -ENOSYS;
311e655a
MD		 847}
848
9b2f1c54 849static inline int lttng_syscall_filter_disable_event(struct lttng_kernel_event_common *event)
311e655a 850{
6053e75e 851 return -ENOSYS;
311e655a
MD		 852}
853
6053e75e 854static inline int lttng_syscalls_unregister_syscall_table(struct lttng_kernel_syscall_table *syscall_table)
311e655a 855{
6053e75e 856 return 0;
311e655a
MD		 857}
858
6053e75e 859static inline int lttng_syscalls_destroy_syscall_table(struct lttng_kernel_syscall_table *syscall_table)
311e655a 860{
6053e75e 861 return 0;
311e655a
MD		 862}
863
c970b655
MD		 864static inline long lttng_syscall_table_get_active_mask(struct lttng_kernel_syscall_table *syscall_table,
865 struct lttng_kernel_abi_syscall_mask __user *usyscall_mask)
311e655a
MD		 866{
867 return -ENOSYS;
868}
869
6053e75e 870static inline int lttng_syscalls_create_matching_event_notifiers(struct lttng_event_notifier_enabler *event_notifier_enabler)
311e655a 871{
6053e75e 872 return -ENOSYS;
311e655a
MD		 873}
874
311e655a 875#endif
0fe45627 876
e4a26d6b
MD		 877#ifdef CONFIG_KPROBES
878int lttng_kprobes_register_event(const char *name,
879 const char *symbol_name,
880 uint64_t offset,
881 uint64_t addr,
6a35e5bd
MD		 882 struct lttng_kernel_event_common *event);
883void lttng_kprobes_unregister_event(struct lttng_kernel_event_common *event);
884void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_common *event);
e4a26d6b
MD		 885#else
886static inline
887int lttng_kprobes_register_event(const char *name,
888 const char *symbol_name,
889 uint64_t offset,
890 uint64_t addr,
6a35e5bd 891 struct lttng_kernel_event_common *event)
e4a26d6b
MD		 892{
893 return -ENOSYS;
894}
895
896static inline
6a35e5bd 897void lttng_kprobes_unregister_event(struct lttng_kernel_event_common *event)
e4a26d6b
MD		 898{
899}
900
901static inline
6a35e5bd 902void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_common *event)
e4a26d6b
MD		 903{
904}
905#endif
906
907int lttng_event_add_callsite(struct lttng_kernel_event_common *event,
908 struct lttng_kernel_abi_event_callsite __user *callsite);
909
910#ifdef CONFIG_UPROBES
911int lttng_uprobes_register_event(const char *name,
17806c46 912 int fd, struct lttng_kernel_event_common *event);
e4a26d6b
MD		 913int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
914 struct lttng_kernel_abi_event_callsite __user *callsite);
17806c46
MD		 915void lttng_uprobes_unregister_event(struct lttng_kernel_event_common *event);
916void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_common *event);
e4a26d6b
MD		 917#else
918static inline
919int lttng_uprobes_register_event(const char *name,
17806c46 920 int fd, struct lttng_kernel_event_common *event)
e4a26d6b
MD		 921{
922 return -ENOSYS;
923}
924
925static inline
926int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
927 struct lttng_kernel_abi_event_callsite __user *callsite)
928{
929 return -ENOSYS;
930}
931
932static inline
17806c46 933void lttng_uprobes_unregister_event(struct lttng_kernel_event_common *event)
e4a26d6b
MD		 934{
935}
936
937static inline
17806c46 938void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_common *event)
e4a26d6b
MD		 939{
940}
941#endif
942
943#ifdef CONFIG_KRETPROBES
944int lttng_kretprobes_register(const char *name,
945 const char *symbol_name,
946 uint64_t offset,
947 uint64_t addr,
eb6b47db
MD		 948 struct lttng_kernel_event_common *event_entry,
949 struct lttng_kernel_event_common *event_exit);
950void lttng_kretprobes_unregister(struct lttng_kernel_event_common *event);
951void lttng_kretprobes_destroy_private(struct lttng_kernel_event_common *event);
e4a26d6b
MD		 952int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event,
953 int enable);
954#else
955static inline
956int lttng_kretprobes_register(const char *name,
957 const char *symbol_name,
958 uint64_t offset,
959 uint64_t addr,
eb6b47db
MD		 960 struct lttng_kernel_event_common *event_entry,
961 struct lttng_kernel_event_common *event_exit)
e4a26d6b
MD		 962{
963 return -ENOSYS;
964}
965
966static inline
eb6b47db 967void lttng_kretprobes_unregister(struct lttng_kernel_event_common *event)
e4a26d6b
MD		 968{
969}
970
971static inline
eb6b47db 972void lttng_kretprobes_destroy_private(struct lttng_kernel_event_common *event)
e4a26d6b
MD		 973{
974}
975
976static inline
977int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event,
978 int enable)
979{
980 return -ENOSYS;
981}
982#endif
983
e8c0bbd3
MD		 984void lttng_lock_sessions(void);
985void lttng_unlock_sessions(void);
986
987struct list_head *lttng_get_probe_list_head(void);
988
989int lttng_fix_pending_events(void);
990int lttng_fix_pending_event_notifiers(void);
991int lttng_session_active(void);
992bool lttng_event_notifier_active(void);
993
8cdc1a81
MD		 994struct lttng_kernel_session *lttng_session_create(void);
995int lttng_session_enable(struct lttng_kernel_session *session);
996int lttng_session_disable(struct lttng_kernel_session *session);
997void lttng_session_destroy(struct lttng_kernel_session *session);
998int lttng_session_metadata_regenerate(struct lttng_kernel_session *session);
999int lttng_session_statedump(struct lttng_kernel_session *session);
e8c0bbd3
MD		 1000void metadata_cache_destroy(struct kref *kref);
1001
1002struct lttng_counter *lttng_kernel_counter_create(
1003 const char *counter_transport_name, size_t number_dimensions,
1004 const size_t *dimensions_sizes);
1005int lttng_kernel_counter_read(struct lttng_counter *counter,
1006 const size_t *dimension_indexes, int32_t cpu,
1007 int64_t *val, bool *overflow, bool *underflow);
1008int lttng_kernel_counter_aggregate(struct lttng_counter *counter,
1009 const size_t *dimension_indexes, int64_t *val,
1010 bool *overflow, bool *underflow);
1011int lttng_kernel_counter_clear(struct lttng_counter *counter,
1012 const size_t *dimension_indexes);
1013struct lttng_event_notifier_group *lttng_event_notifier_group_create(void);
1014int lttng_event_notifier_group_create_error_counter(
1015 struct file *event_notifier_group_file,
1016 const struct lttng_kernel_abi_counter_conf *error_counter_conf);
1017void lttng_event_notifier_group_destroy(
1018 struct lttng_event_notifier_group *event_notifier_group);
1019
4e252d1e 1020struct lttng_kernel_channel_buffer *lttng_channel_buffer_create(struct lttng_kernel_session *session,
e8c0bbd3
MD		 1021 const char *transport_name,
1022 void *buf_addr,
1023 size_t subbuf_size, size_t num_subbuf,
1024 unsigned int switch_timer_interval,
1025 unsigned int read_timer_interval,
1026 enum channel_type channel_type);
f7d06400 1027struct lttng_kernel_channel_buffer *lttng_global_channel_create(struct lttng_kernel_session *session,
e8c0bbd3
MD		 1028 int overwrite, void *buf_addr,
1029 size_t subbuf_size, size_t num_subbuf,
1030 unsigned int switch_timer_interval,
1031 unsigned int read_timer_interval);
1032
f7d06400 1033void lttng_metadata_channel_destroy(struct lttng_kernel_channel_buffer *chan);
1ae083ba 1034struct lttng_kernel_event_recorder *lttng_kernel_event_recorder_create(struct lttng_event_recorder_enabler *event_enabler,
def1e304 1035 const struct lttng_kernel_event_desc *event_desc);
1ae083ba 1036struct lttng_kernel_event_recorder *_lttng_kernel_event_recorder_create(struct lttng_event_recorder_enabler *event_enabler,
def1e304 1037 const struct lttng_kernel_event_desc *event_desc);
f7d06400 1038struct lttng_kernel_event_recorder *lttng_event_compat_old_create(struct lttng_kernel_channel_buffer *chan,
e8c0bbd3
MD		 1039 struct lttng_kernel_abi_old_event *old_event_param,
1040 const struct lttng_kernel_event_desc *internal_desc);
1041
1bbb5b2d
MD		 1042struct lttng_kernel_event_notifier *lttng_event_notifier_create(struct lttng_event_notifier_enabler *event_enabler,
1043 const struct lttng_kernel_event_desc *event_notifier_desc);
1044struct lttng_kernel_event_notifier *_lttng_event_notifier_create(struct lttng_event_notifier_enabler *event_enabler,
1045 const struct lttng_kernel_event_desc *event_notifier_desc);
e8c0bbd3 1046
6b757027
MD		 1047int lttng_channel_enable(struct lttng_kernel_channel_common *channel);
1048int lttng_channel_disable(struct lttng_kernel_channel_common *channel);
e8c0bbd3
MD		 1049int lttng_event_enable(struct lttng_kernel_event_common *event);
1050int lttng_event_disable(struct lttng_kernel_event_common *event);
1051
1052void lttng_transport_register(struct lttng_transport *transport);
1053void lttng_transport_unregister(struct lttng_transport *transport);
1054
1055void lttng_counter_transport_register(struct lttng_counter_transport *transport);
1056void lttng_counter_transport_unregister(struct lttng_counter_transport *transport);
1057
1058void synchronize_trace(void);
1059int lttng_abi_init(void);
1060int lttng_abi_compat_old_init(void);
1061void lttng_abi_exit(void);
1062void lttng_abi_compat_old_exit(void);
1063
1064const struct lttng_kernel_event_desc *lttng_event_desc_get(const char *name);
1065void lttng_event_desc_put(const struct lttng_kernel_event_desc *desc);
1066int lttng_probes_init(void);
1067void lttng_probes_exit(void);
1068
1069int lttng_metadata_output_channel(struct lttng_metadata_stream *stream,
860c213b 1070 struct lttng_kernel_ring_buffer_channel *chan, bool *coherent);
e8c0bbd3
MD		 1071
1072int lttng_id_tracker_get_node_id(const struct lttng_id_hash_node *node);
8c0393c3
MD		 1073int lttng_id_tracker_empty_set(struct lttng_kernel_id_tracker *lf);
1074int lttng_id_tracker_init(struct lttng_kernel_id_tracker *lf,
1075 struct lttng_kernel_session *session,
1076 enum tracker_type type);
1077void lttng_id_tracker_fini(struct lttng_kernel_id_tracker *lf);
1078void lttng_id_tracker_destroy(struct lttng_kernel_id_tracker *lf, bool rcu);
1079int lttng_id_tracker_add(struct lttng_kernel_id_tracker *lf, int id);
1080int lttng_id_tracker_del(struct lttng_kernel_id_tracker *lf, int id);
e8c0bbd3 1081
8cdc1a81 1082int lttng_session_track_id(struct lttng_kernel_session *session,
e8c0bbd3 1083 enum tracker_type tracker_type, int id);
8cdc1a81 1084int lttng_session_untrack_id(struct lttng_kernel_session *session,
e8c0bbd3
MD		 1085 enum tracker_type tracker_type, int id);
1086
8cdc1a81 1087int lttng_session_list_tracker_ids(struct lttng_kernel_session *session,
e8c0bbd3
MD		 1088 enum tracker_type tracker_type);
1089
1090void lttng_clock_ref(void);
1091void lttng_clock_unref(void);
1092
1093void lttng_free_event_filter_runtime(struct lttng_kernel_event_common *event);
1094
1095int lttng_probes_init(void);
1096
1097int lttng_logger_init(void);
1098void lttng_logger_exit(void);
1099
8cdc1a81 1100extern int lttng_statedump_start(struct lttng_kernel_session *session);
e8c0bbd3
MD		 1101
1102int lttng_calibrate(struct lttng_kernel_abi_calibrate *calibrate);
1103
1104extern const struct file_operations lttng_tracepoint_list_fops;
1105extern const struct file_operations lttng_syscall_list_fops;
1106
0fe45627
MD		 1107#define lttng_kernel_static_ctx_field(_event_field, _get_size, _record, _get_value, _destroy, _priv) \
1108 __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_ctx_field, { \
1109 .event_field = (_event_field), \
1110 .get_size = (_get_size), \
1111 .record = (_record), \
1112 .get_value = (_get_value), \
1113 .destroy = (_destroy), \
1114 .priv = (_priv), \
1115 })
1116
92bc1e23 1117#endif /* _LTTNG_EVENTS_INTERNAL_H */
LTTng 2.0/0.x modules
This page took 0.078697 seconds and 4 git commands to generate.