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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 | ||
437d5aa5 MD |
11 | #include <lttng/events.h> |
12 | ||
344fe0f6 MD |
13 | struct lttng_syscall_filter; |
14 | ||
311e655a MD |
15 | enum lttng_enabler_format_type { |
16 | LTTNG_ENABLER_FORMAT_STAR_GLOB, | |
17 | LTTNG_ENABLER_FORMAT_NAME, | |
18 | }; | |
19 | ||
20 | /* | |
21 | * Objects in a linked-list of enablers, owned by an event. | |
22 | */ | |
23 | struct lttng_enabler_ref { | |
24 | struct list_head node; /* enabler ref list */ | |
25 | struct lttng_enabler *ref; /* backward ref */ | |
26 | }; | |
27 | ||
e978f274 MD |
28 | struct lttng_krp; /* Kretprobe handling */ |
29 | ||
30 | struct lttng_uprobe_handler { | |
31 | struct lttng_kernel_event_common *event; | |
32 | loff_t offset; | |
33 | struct uprobe_consumer up_consumer; | |
34 | struct list_head node; | |
35 | }; | |
36 | ||
37 | struct lttng_kprobe { | |
38 | struct kprobe kp; | |
39 | char *symbol_name; | |
40 | }; | |
41 | ||
42 | struct lttng_uprobe { | |
43 | struct inode *inode; | |
44 | struct list_head head; | |
45 | }; | |
46 | ||
47 | enum lttng_syscall_entryexit { | |
48 | LTTNG_SYSCALL_ENTRY, | |
49 | LTTNG_SYSCALL_EXIT, | |
50 | }; | |
51 | ||
52 | enum lttng_syscall_abi { | |
53 | LTTNG_SYSCALL_ABI_NATIVE, | |
54 | LTTNG_SYSCALL_ABI_COMPAT, | |
55 | }; | |
56 | ||
a67ba386 MD |
57 | struct lttng_kernel_event_common_private { |
58 | struct lttng_kernel_event_common *pub; /* Public event interface */ | |
59 | ||
60 | const struct lttng_kernel_event_desc *desc; | |
61 | /* Backward references: list of lttng_enabler_ref (ref to enablers) */ | |
62 | struct list_head enablers_ref_head; | |
63 | int registered; /* has reg'd tracepoint probe */ | |
64 | uint64_t user_token; | |
65 | ||
66 | int has_enablers_without_filter_bytecode; | |
218585b9 | 67 | /* list of struct lttng_kernel_bytecode_runtime, sorted by seqnum */ |
a67ba386 MD |
68 | struct list_head filter_bytecode_runtime_head; |
69 | enum lttng_kernel_abi_instrumentation instrumentation; | |
70 | /* Selected by instrumentation */ | |
71 | union { | |
72 | struct lttng_kprobe kprobe; | |
73 | struct lttng_uprobe uprobe; | |
74 | struct { | |
75 | struct lttng_krp *lttng_krp; | |
76 | char *symbol_name; | |
77 | } kretprobe; | |
78 | struct { | |
79 | enum lttng_syscall_entryexit entryexit; | |
80 | enum lttng_syscall_abi abi; | |
81 | struct hlist_node node; /* chain registered syscall event_notifier */ | |
82 | unsigned int syscall_id; | |
83 | } syscall; | |
84 | } u; | |
85 | }; | |
86 | ||
87 | struct lttng_kernel_event_recorder_private { | |
88 | struct lttng_kernel_event_common_private parent; | |
89 | ||
90 | struct lttng_kernel_event_recorder *pub; /* Public event interface */ | |
91 | struct list_head node; /* Event recorder list */ | |
92 | struct hlist_node hlist; /* Hash table of event recorders */ | |
93 | struct lttng_kernel_ctx *ctx; | |
94 | unsigned int id; | |
95 | unsigned int metadata_dumped:1; | |
96 | }; | |
97 | ||
98 | struct lttng_kernel_event_notifier_private { | |
99 | struct lttng_kernel_event_common_private parent; | |
100 | ||
101 | struct lttng_kernel_event_notifier *pub; /* Public event notifier interface */ | |
102 | struct lttng_event_notifier_group *group; /* weak ref */ | |
103 | size_t num_captures; /* Needed to allocate the msgpack array. */ | |
104 | uint64_t error_counter_index; | |
105 | struct list_head node; /* Event notifier list */ | |
106 | struct hlist_node hlist; /* Hash table of event notifiers */ | |
107 | struct list_head capture_bytecode_runtime_head; | |
108 | ||
109 | }; | |
110 | ||
8a445457 MD |
111 | enum lttng_kernel_bytecode_interpreter_ret { |
112 | LTTNG_KERNEL_BYTECODE_INTERPRETER_ERROR = -1, | |
113 | LTTNG_KERNEL_BYTECODE_INTERPRETER_OK = 0, | |
114 | }; | |
115 | ||
116 | enum lttng_kernel_bytecode_filter_result { | |
117 | LTTNG_KERNEL_BYTECODE_FILTER_ACCEPT = 0, | |
118 | LTTNG_KERNEL_BYTECODE_FILTER_REJECT = 1, | |
119 | }; | |
120 | ||
121 | struct lttng_kernel_bytecode_filter_ctx { | |
122 | enum lttng_kernel_bytecode_filter_result result; | |
123 | }; | |
124 | ||
1efb0502 MD |
125 | struct lttng_interpreter_output; |
126 | ||
127 | enum lttng_kernel_bytecode_type { | |
128 | LTTNG_KERNEL_BYTECODE_TYPE_FILTER, | |
129 | LTTNG_KERNEL_BYTECODE_TYPE_CAPTURE, | |
130 | }; | |
131 | ||
132 | struct lttng_kernel_bytecode_node { | |
133 | enum lttng_kernel_bytecode_type type; | |
134 | struct list_head node; | |
135 | struct lttng_enabler *enabler; | |
136 | struct { | |
137 | uint32_t len; | |
138 | uint32_t reloc_offset; | |
139 | uint64_t seqnum; | |
140 | char data[]; | |
141 | } bc; | |
142 | }; | |
143 | ||
144 | struct lttng_kernel_bytecode_runtime { | |
145 | /* Associated bytecode */ | |
146 | enum lttng_kernel_bytecode_type type; | |
147 | struct lttng_kernel_bytecode_node *bc; | |
148 | int (*interpreter_func)(struct lttng_kernel_bytecode_runtime *kernel_bytecode, | |
149 | const char *interpreter_stack_data, | |
150 | struct lttng_kernel_probe_ctx *lttng_probe_ctx, | |
151 | void *caller_ctx); | |
152 | int link_failed; | |
153 | struct list_head node; /* list of bytecode runtime in event */ | |
154 | struct lttng_kernel_ctx *ctx; | |
155 | }; | |
156 | ||
5e08a34f MD |
157 | /* |
158 | * Enabler field, within whatever object is enabling an event. Target of | |
159 | * backward reference. | |
160 | */ | |
161 | struct lttng_enabler { | |
162 | enum lttng_enabler_format_type format_type; | |
163 | ||
d64ca521 | 164 | /* head list of struct lttng_kernel_bytecode_node */ |
5e08a34f MD |
165 | struct list_head filter_bytecode_head; |
166 | ||
167 | struct lttng_kernel_abi_event event_param; | |
168 | unsigned int enabled:1; | |
169 | ||
170 | uint64_t user_token; /* User-provided token. */ | |
171 | }; | |
172 | ||
173 | struct lttng_event_enabler { | |
174 | struct lttng_enabler base; | |
175 | struct list_head node; /* per-session list of enablers */ | |
176 | struct lttng_channel *chan; | |
177 | }; | |
178 | ||
179 | struct lttng_event_notifier_enabler { | |
180 | struct lttng_enabler base; | |
181 | uint64_t error_counter_index; | |
182 | struct list_head node; /* List of event_notifier enablers */ | |
183 | struct lttng_event_notifier_group *group; | |
184 | ||
d64ca521 | 185 | /* head list of struct lttng_kernel_bytecode_node */ |
5e08a34f MD |
186 | struct list_head capture_bytecode_head; |
187 | uint64_t num_captures; | |
188 | }; | |
189 | ||
0fe45627 MD |
190 | struct lttng_ctx_value { |
191 | union { | |
192 | int64_t s64; | |
193 | const char *str; | |
194 | double d; | |
195 | } u; | |
196 | }; | |
197 | ||
198 | /* | |
199 | * We need to keep this perf counter field separately from struct | |
200 | * lttng_kernel_ctx_field because cpu hotplug needs fixed-location addresses. | |
201 | */ | |
202 | struct lttng_perf_counter_field { | |
203 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) | |
204 | struct lttng_cpuhp_node cpuhp_prepare; | |
205 | struct lttng_cpuhp_node cpuhp_online; | |
206 | #else | |
207 | struct notifier_block nb; | |
208 | int hp_enable; | |
209 | #endif | |
210 | struct perf_event_attr *attr; | |
211 | struct perf_event **e; /* per-cpu array */ | |
212 | char *name; | |
213 | struct lttng_kernel_event_field *event_field; | |
214 | }; | |
215 | ||
216 | struct lttng_kernel_ctx_field { | |
217 | const struct lttng_kernel_event_field *event_field; | |
a92e844e | 218 | size_t (*get_size)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx, |
0fe45627 | 219 | size_t offset); |
a92e844e | 220 | void (*record)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx, |
8a57ec02 | 221 | struct lttng_kernel_ring_buffer_ctx *ctx, |
0fe45627 | 222 | struct lttng_channel *chan); |
a92e844e | 223 | void (*get_value)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx, |
0fe45627 MD |
224 | struct lttng_ctx_value *value); |
225 | void (*destroy)(void *priv); | |
226 | void *priv; | |
227 | }; | |
228 | ||
229 | struct lttng_kernel_ctx { | |
230 | struct lttng_kernel_ctx_field *fields; | |
231 | unsigned int nr_fields; | |
232 | unsigned int allocated_fields; | |
233 | size_t largest_align; /* in bytes */ | |
234 | }; | |
235 | ||
8a20497f MD |
236 | struct lttng_metadata_cache { |
237 | char *data; /* Metadata cache */ | |
238 | unsigned int cache_alloc; /* Metadata allocated size (bytes) */ | |
239 | unsigned int metadata_written; /* Number of bytes written in metadata cache */ | |
240 | atomic_t producing; /* Metadata being produced (incomplete) */ | |
241 | struct kref refcount; /* Metadata cache usage */ | |
242 | struct list_head metadata_stream; /* Metadata stream list */ | |
243 | uuid_le uuid; /* Trace session unique ID (copy) */ | |
244 | struct mutex lock; /* Produce/consume lock */ | |
245 | uint64_t version; /* Current version of the metadata */ | |
246 | }; | |
247 | ||
a44f47dd MD |
248 | struct lttng_metadata_stream { |
249 | void *priv; /* Ring buffer private data */ | |
250 | struct lttng_metadata_cache *metadata_cache; | |
251 | unsigned int metadata_in; /* Bytes read from the cache */ | |
252 | unsigned int metadata_out; /* Bytes consumed from stream */ | |
253 | int finalized; /* Has channel been finalized */ | |
254 | wait_queue_head_t read_wait; /* Reader buffer-level wait queue */ | |
255 | struct list_head list; /* Stream list */ | |
256 | struct lttng_transport *transport; | |
257 | uint64_t version; /* Current version of the metadata cache */ | |
258 | bool coherent; /* Stream in a coherent state */ | |
259 | }; | |
260 | ||
4a399b76 MD |
261 | struct lttng_kernel_channel_buffer_ops_private { |
262 | struct lttng_kernel_channel_buffer_ops *pub; /* Public channel buffer ops interface */ | |
263 | ||
264 | struct channel *(*channel_create)(const char *name, | |
265 | void *priv, | |
266 | void *buf_addr, | |
267 | size_t subbuf_size, size_t num_subbuf, | |
268 | unsigned int switch_timer_interval, | |
269 | unsigned int read_timer_interval); | |
270 | void (*channel_destroy)(struct channel *chan); | |
271 | struct lib_ring_buffer *(*buffer_read_open)(struct channel *chan); | |
272 | int (*buffer_has_read_closed_stream)(struct channel *chan); | |
273 | void (*buffer_read_close)(struct lib_ring_buffer *buf); | |
274 | /* | |
275 | * packet_avail_size returns the available size in the current | |
276 | * packet. Note that the size returned is only a hint, since it | |
277 | * may change due to concurrent writes. | |
278 | */ | |
279 | size_t (*packet_avail_size)(struct channel *chan); | |
280 | wait_queue_head_t *(*get_writer_buf_wait_queue)(struct channel *chan, int cpu); | |
281 | wait_queue_head_t *(*get_hp_wait_queue)(struct channel *chan); | |
282 | int (*is_finalized)(struct channel *chan); | |
283 | int (*is_disabled)(struct channel *chan); | |
284 | int (*timestamp_begin) (const struct lib_ring_buffer_config *config, | |
285 | struct lib_ring_buffer *bufb, | |
286 | uint64_t *timestamp_begin); | |
287 | int (*timestamp_end) (const struct lib_ring_buffer_config *config, | |
288 | struct lib_ring_buffer *bufb, | |
289 | uint64_t *timestamp_end); | |
290 | int (*events_discarded) (const struct lib_ring_buffer_config *config, | |
291 | struct lib_ring_buffer *bufb, | |
292 | uint64_t *events_discarded); | |
293 | int (*content_size) (const struct lib_ring_buffer_config *config, | |
294 | struct lib_ring_buffer *bufb, | |
295 | uint64_t *content_size); | |
296 | int (*packet_size) (const struct lib_ring_buffer_config *config, | |
297 | struct lib_ring_buffer *bufb, | |
298 | uint64_t *packet_size); | |
299 | int (*stream_id) (const struct lib_ring_buffer_config *config, | |
300 | struct lib_ring_buffer *bufb, | |
301 | uint64_t *stream_id); | |
302 | int (*current_timestamp) (const struct lib_ring_buffer_config *config, | |
303 | struct lib_ring_buffer *bufb, | |
304 | uint64_t *ts); | |
305 | int (*sequence_number) (const struct lib_ring_buffer_config *config, | |
306 | struct lib_ring_buffer *bufb, | |
307 | uint64_t *seq); | |
308 | int (*instance_id) (const struct lib_ring_buffer_config *config, | |
309 | struct lib_ring_buffer *bufb, | |
310 | uint64_t *id); | |
311 | }; | |
312 | ||
b0315544 MD |
313 | struct lttng_counter_ops { |
314 | struct lib_counter *(*counter_create)(size_t nr_dimensions, | |
315 | const size_t *max_nr_elem, /* for each dimension */ | |
316 | int64_t global_sum_step); | |
317 | void (*counter_destroy)(struct lib_counter *counter); | |
318 | int (*counter_add)(struct lib_counter *counter, const size_t *dimension_indexes, | |
319 | int64_t v); | |
320 | /* | |
321 | * counter_read reads a specific cpu's counter if @cpu >= 0, or | |
322 | * the global aggregation counter if @cpu == -1. | |
323 | */ | |
324 | int (*counter_read)(struct lib_counter *counter, const size_t *dimension_indexes, int cpu, | |
325 | int64_t *value, bool *overflow, bool *underflow); | |
326 | /* | |
327 | * counter_aggregate returns the total sum of all per-cpu counters and | |
328 | * the global aggregation counter. | |
329 | */ | |
330 | int (*counter_aggregate)(struct lib_counter *counter, const size_t *dimension_indexes, | |
331 | int64_t *value, bool *overflow, bool *underflow); | |
332 | int (*counter_clear)(struct lib_counter *counter, const size_t *dimension_indexes); | |
333 | }; | |
334 | ||
335 | struct lttng_counter { | |
336 | struct file *file; /* File associated to counter. */ | |
337 | struct file *owner; | |
338 | struct lttng_counter_transport *transport; | |
339 | struct lib_counter *counter; | |
340 | struct lttng_counter_ops *ops; | |
341 | }; | |
342 | ||
343 | struct lttng_event_notifier_group { | |
344 | struct file *file; /* File associated to event notifier group */ | |
345 | struct file *notif_file; /* File used to expose notifications to userspace. */ | |
346 | struct list_head node; /* event notifier group list */ | |
347 | struct list_head enablers_head; /* List of enablers */ | |
348 | struct list_head event_notifiers_head; /* List of event notifier */ | |
349 | struct lttng_event_notifier_ht event_notifiers_ht; /* Hash table of event notifiers */ | |
350 | struct lttng_kernel_channel_buffer_ops *ops; | |
351 | struct lttng_transport *transport; | |
352 | struct channel *chan; /* Ring buffer channel for event notifier group. */ | |
353 | struct lib_ring_buffer *buf; /* Ring buffer for event notifier group. */ | |
354 | wait_queue_head_t read_wait; | |
355 | struct irq_work wakeup_pending; /* Pending wakeup irq work. */ | |
356 | struct lttng_kernel_event_notifier *sc_unknown; /* for unknown syscalls */ | |
357 | struct lttng_kernel_event_notifier *sc_compat_unknown; | |
358 | ||
359 | struct lttng_syscall_filter *sc_filter; | |
360 | ||
361 | struct hlist_head *event_notifier_syscall_dispatch; | |
362 | struct hlist_head *event_notifier_compat_syscall_dispatch; | |
363 | struct hlist_head *event_notifier_exit_syscall_dispatch; | |
364 | struct hlist_head *event_notifier_exit_compat_syscall_dispatch; | |
365 | ||
366 | struct hlist_head event_notifier_unknown_syscall_dispatch; | |
367 | struct hlist_head event_notifier_compat_unknown_syscall_dispatch; | |
368 | struct hlist_head event_notifier_exit_unknown_syscall_dispatch; | |
369 | struct hlist_head event_notifier_exit_compat_unknown_syscall_dispatch; | |
370 | ||
371 | int syscall_all_entry; | |
372 | int syscall_all_exit; | |
373 | ||
374 | unsigned int sys_enter_registered:1, sys_exit_registered:1; | |
375 | ||
376 | struct lttng_counter *error_counter; | |
377 | size_t error_counter_len; | |
378 | }; | |
379 | ||
380 | struct lttng_transport { | |
381 | char *name; | |
382 | struct module *owner; | |
383 | struct list_head node; | |
384 | struct lttng_kernel_channel_buffer_ops ops; | |
385 | }; | |
386 | ||
387 | struct lttng_counter_transport { | |
388 | char *name; | |
389 | struct module *owner; | |
390 | struct list_head node; | |
391 | struct lttng_counter_ops ops; | |
392 | }; | |
393 | ||
8cdc1a81 MD |
394 | struct lttng_kernel_session_private { |
395 | struct lttng_kernel_session *pub; /* Public session interface */ | |
396 | ||
397 | int been_active; /* Has trace session been active ? */ | |
398 | struct file *file; /* File associated to session */ | |
399 | struct list_head chan; /* Channel list head */ | |
400 | struct list_head events; /* Event list head */ | |
401 | struct list_head list; /* Session list */ | |
402 | unsigned int free_chan_id; /* Next chan ID to allocate */ | |
403 | uuid_le uuid; /* Trace session unique ID */ | |
404 | struct lttng_metadata_cache *metadata_cache; | |
405 | unsigned int metadata_dumped:1, | |
406 | tstate:1; /* Transient enable state */ | |
407 | /* List of event enablers */ | |
408 | struct list_head enablers_head; | |
409 | /* Hash table of events */ | |
410 | struct lttng_event_ht events_ht; | |
411 | char name[LTTNG_KERNEL_ABI_SESSION_NAME_LEN]; | |
412 | char creation_time[LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN]; | |
413 | }; | |
414 | ||
fc66bf6a MD |
415 | struct lttng_id_hash_node { |
416 | struct hlist_node hlist; | |
417 | int id; | |
418 | }; | |
419 | ||
8c0393c3 MD |
420 | enum tracker_type { |
421 | TRACKER_PID, | |
422 | TRACKER_VPID, | |
423 | TRACKER_UID, | |
424 | TRACKER_VUID, | |
425 | TRACKER_GID, | |
426 | TRACKER_VGID, | |
427 | ||
428 | TRACKER_UNKNOWN, | |
429 | }; | |
430 | ||
431 | struct lttng_kernel_id_tracker_private { | |
432 | struct lttng_kernel_id_tracker *pub; /* Public interface */ | |
433 | ||
434 | struct lttng_kernel_session *session; | |
435 | enum tracker_type tracker_type; | |
436 | }; | |
437 | ||
0fe45627 MD |
438 | extern struct lttng_kernel_ctx *lttng_static_ctx; |
439 | ||
437d5aa5 MD |
440 | static inline |
441 | const struct lttng_kernel_type_integer *lttng_kernel_get_type_integer(const struct lttng_kernel_type_common *type) | |
442 | { | |
443 | if (type->type != lttng_kernel_type_integer) | |
444 | return NULL; | |
445 | return container_of(type, const struct lttng_kernel_type_integer, parent); | |
446 | } | |
447 | ||
448 | static inline | |
449 | const struct lttng_kernel_type_string *lttng_kernel_get_type_string(const struct lttng_kernel_type_common *type) | |
450 | { | |
451 | if (type->type != lttng_kernel_type_string) | |
452 | return NULL; | |
453 | return container_of(type, const struct lttng_kernel_type_string, parent); | |
454 | } | |
455 | ||
456 | static inline | |
457 | const struct lttng_kernel_type_enum *lttng_kernel_get_type_enum(const struct lttng_kernel_type_common *type) | |
458 | { | |
459 | if (type->type != lttng_kernel_type_enum) | |
460 | return NULL; | |
461 | return container_of(type, const struct lttng_kernel_type_enum, parent); | |
462 | } | |
463 | ||
464 | static inline | |
465 | const struct lttng_kernel_type_array *lttng_kernel_get_type_array(const struct lttng_kernel_type_common *type) | |
466 | { | |
467 | if (type->type != lttng_kernel_type_array) | |
468 | return NULL; | |
469 | return container_of(type, const struct lttng_kernel_type_array, parent); | |
470 | } | |
471 | ||
472 | static inline | |
473 | const struct lttng_kernel_type_sequence *lttng_kernel_get_type_sequence(const struct lttng_kernel_type_common *type) | |
474 | { | |
475 | if (type->type != lttng_kernel_type_sequence) | |
476 | return NULL; | |
477 | return container_of(type, const struct lttng_kernel_type_sequence, parent); | |
478 | } | |
479 | ||
480 | static inline | |
481 | const struct lttng_kernel_type_struct *lttng_kernel_get_type_struct(const struct lttng_kernel_type_common *type) | |
482 | { | |
483 | if (type->type != lttng_kernel_type_struct) | |
484 | return NULL; | |
485 | return container_of(type, const struct lttng_kernel_type_struct, parent); | |
486 | } | |
487 | ||
488 | static inline | |
489 | const struct lttng_kernel_type_variant *lttng_kernel_get_type_variant(const struct lttng_kernel_type_common *type) | |
490 | { | |
491 | if (type->type != lttng_kernel_type_variant) | |
492 | return NULL; | |
493 | return container_of(type, const struct lttng_kernel_type_variant, parent); | |
494 | } | |
495 | ||
496 | static inline bool lttng_kernel_type_is_bytewise_integer(const struct lttng_kernel_type_common *type) | |
497 | { | |
498 | const struct lttng_kernel_type_integer *type_integer = lttng_kernel_get_type_integer(type); | |
499 | ||
500 | if (!type_integer) | |
501 | return false; | |
502 | switch (type_integer->size) { | |
503 | case 8: /* Fall-through. */ | |
504 | case 16: /* Fall-through. */ | |
505 | case 32: /* Fall-through. */ | |
506 | case 64: | |
507 | break; | |
508 | default: | |
509 | return false; | |
510 | } | |
511 | return true; | |
512 | } | |
513 | ||
8a445457 MD |
514 | int lttng_kernel_interpret_event_filter(const struct lttng_kernel_event_common *event, |
515 | const char *interpreter_stack_data, | |
a92e844e | 516 | struct lttng_kernel_probe_ctx *probe_ctx, |
8a445457 MD |
517 | void *event_filter_ctx); |
518 | ||
5e08a34f MD |
519 | static inline |
520 | struct lttng_enabler *lttng_event_enabler_as_enabler( | |
521 | struct lttng_event_enabler *event_enabler) | |
522 | { | |
523 | return &event_enabler->base; | |
524 | } | |
525 | ||
526 | static inline | |
527 | struct lttng_enabler *lttng_event_notifier_enabler_as_enabler( | |
528 | struct lttng_event_notifier_enabler *event_notifier_enabler) | |
529 | { | |
530 | return &event_notifier_enabler->base; | |
531 | } | |
532 | ||
0fe45627 MD |
533 | int lttng_context_init(void); |
534 | void lttng_context_exit(void); | |
535 | int lttng_kernel_context_append(struct lttng_kernel_ctx **ctx_p, | |
536 | const struct lttng_kernel_ctx_field *f); | |
537 | void lttng_kernel_context_remove_last(struct lttng_kernel_ctx **ctx_p); | |
538 | struct lttng_kernel_ctx_field *lttng_kernel_get_context_field_from_index(struct lttng_kernel_ctx *ctx, | |
539 | size_t index); | |
540 | int lttng_kernel_find_context(struct lttng_kernel_ctx *ctx, const char *name); | |
541 | int lttng_kernel_get_context_index(struct lttng_kernel_ctx *ctx, const char *name); | |
542 | void lttng_kernel_destroy_context(struct lttng_kernel_ctx *ctx); | |
543 | int lttng_add_pid_to_ctx(struct lttng_kernel_ctx **ctx); | |
544 | int lttng_add_cpu_id_to_ctx(struct lttng_kernel_ctx **ctx); | |
545 | int lttng_add_procname_to_ctx(struct lttng_kernel_ctx **ctx); | |
546 | int lttng_add_prio_to_ctx(struct lttng_kernel_ctx **ctx); | |
547 | int lttng_add_nice_to_ctx(struct lttng_kernel_ctx **ctx); | |
548 | int lttng_add_vpid_to_ctx(struct lttng_kernel_ctx **ctx); | |
549 | int lttng_add_tid_to_ctx(struct lttng_kernel_ctx **ctx); | |
550 | int lttng_add_vtid_to_ctx(struct lttng_kernel_ctx **ctx); | |
551 | int lttng_add_ppid_to_ctx(struct lttng_kernel_ctx **ctx); | |
552 | int lttng_add_vppid_to_ctx(struct lttng_kernel_ctx **ctx); | |
553 | int lttng_add_hostname_to_ctx(struct lttng_kernel_ctx **ctx); | |
554 | int lttng_add_interruptible_to_ctx(struct lttng_kernel_ctx **ctx); | |
555 | int lttng_add_need_reschedule_to_ctx(struct lttng_kernel_ctx **ctx); | |
556 | #if defined(CONFIG_PREEMPT_RT_FULL) || defined(CONFIG_PREEMPT) | |
557 | int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx); | |
558 | #else | |
559 | static inline | |
560 | int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx) | |
561 | { | |
562 | return -ENOSYS; | |
563 | } | |
564 | #endif | |
565 | #ifdef CONFIG_PREEMPT_RT_FULL | |
566 | int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx); | |
567 | #else | |
568 | static inline | |
569 | int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx) | |
570 | { | |
571 | return -ENOSYS; | |
572 | } | |
573 | #endif | |
574 | ||
575 | int lttng_add_callstack_to_ctx(struct lttng_kernel_ctx **ctx, int type); | |
576 | ||
577 | #if defined(CONFIG_CGROUPS) && \ | |
578 | ((LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) || \ | |
579 | LTTNG_UBUNTU_KERNEL_RANGE(4,4,0,0, 4,5,0,0)) | |
580 | int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
581 | #else | |
582 | static inline | |
583 | int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
584 | { | |
585 | return -ENOSYS; | |
586 | } | |
587 | #endif | |
588 | ||
589 | #if defined(CONFIG_IPC_NS) && \ | |
590 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
591 | int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
592 | #else | |
593 | static inline | |
594 | int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
595 | { | |
596 | return -ENOSYS; | |
597 | } | |
598 | #endif | |
599 | ||
600 | #if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \ | |
601 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
602 | int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
603 | #else | |
604 | static inline | |
605 | int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
606 | { | |
607 | return -ENOSYS; | |
608 | } | |
609 | #endif | |
610 | ||
611 | #if defined(CONFIG_NET_NS) && \ | |
612 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
613 | int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
614 | #else | |
615 | static inline | |
616 | int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
617 | { | |
618 | return -ENOSYS; | |
619 | } | |
620 | #endif | |
621 | ||
622 | #if defined(CONFIG_PID_NS) && \ | |
623 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
624 | int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
625 | #else | |
626 | static inline | |
627 | int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
628 | { | |
629 | return -ENOSYS; | |
630 | } | |
631 | #endif | |
632 | ||
633 | #if defined(CONFIG_USER_NS) && \ | |
634 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
635 | int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
636 | #else | |
637 | static inline | |
638 | int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
639 | { | |
640 | return -ENOSYS; | |
641 | } | |
642 | #endif | |
643 | ||
644 | #if defined(CONFIG_UTS_NS) && \ | |
645 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
646 | int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
647 | #else | |
648 | static inline | |
649 | int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
650 | { | |
651 | return -ENOSYS; | |
652 | } | |
653 | #endif | |
654 | ||
655 | #if defined(CONFIG_TIME_NS) && \ | |
656 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0)) | |
657 | int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
658 | #else | |
659 | static inline | |
660 | int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
661 | { | |
662 | return -ENOSYS; | |
663 | } | |
664 | #endif | |
665 | ||
666 | int lttng_add_uid_to_ctx(struct lttng_kernel_ctx **ctx); | |
667 | int lttng_add_euid_to_ctx(struct lttng_kernel_ctx **ctx); | |
668 | int lttng_add_suid_to_ctx(struct lttng_kernel_ctx **ctx); | |
669 | int lttng_add_gid_to_ctx(struct lttng_kernel_ctx **ctx); | |
670 | int lttng_add_egid_to_ctx(struct lttng_kernel_ctx **ctx); | |
671 | int lttng_add_sgid_to_ctx(struct lttng_kernel_ctx **ctx); | |
672 | int lttng_add_vuid_to_ctx(struct lttng_kernel_ctx **ctx); | |
673 | int lttng_add_veuid_to_ctx(struct lttng_kernel_ctx **ctx); | |
674 | int lttng_add_vsuid_to_ctx(struct lttng_kernel_ctx **ctx); | |
675 | int lttng_add_vgid_to_ctx(struct lttng_kernel_ctx **ctx); | |
676 | int lttng_add_vegid_to_ctx(struct lttng_kernel_ctx **ctx); | |
677 | int lttng_add_vsgid_to_ctx(struct lttng_kernel_ctx **ctx); | |
678 | ||
679 | #if defined(CONFIG_PERF_EVENTS) | |
680 | int lttng_add_perf_counter_to_ctx(uint32_t type, | |
681 | uint64_t config, | |
682 | const char *name, | |
683 | struct lttng_kernel_ctx **ctx); | |
684 | int lttng_cpuhp_perf_counter_online(unsigned int cpu, | |
685 | struct lttng_cpuhp_node *node); | |
686 | int lttng_cpuhp_perf_counter_dead(unsigned int cpu, | |
687 | struct lttng_cpuhp_node *node); | |
688 | #else | |
689 | static inline | |
690 | int lttng_add_perf_counter_to_ctx(uint32_t type, | |
691 | uint64_t config, | |
692 | const char *name, | |
693 | struct lttng_kernel_ctx **ctx) | |
694 | { | |
695 | return -ENOSYS; | |
696 | } | |
697 | static inline | |
698 | int lttng_cpuhp_perf_counter_online(unsigned int cpu, | |
699 | struct lttng_cpuhp_node *node) | |
700 | { | |
701 | return 0; | |
702 | } | |
703 | static inline | |
704 | int lttng_cpuhp_perf_counter_dead(unsigned int cpu, | |
705 | struct lttng_cpuhp_node *node) | |
706 | { | |
707 | return 0; | |
708 | } | |
709 | #endif | |
710 | ||
311e655a MD |
711 | struct lttng_event_enabler *lttng_event_enabler_create( |
712 | enum lttng_enabler_format_type format_type, | |
713 | struct lttng_kernel_abi_event *event_param, | |
714 | struct lttng_channel *chan); | |
715 | ||
716 | int lttng_event_enabler_enable(struct lttng_event_enabler *event_enabler); | |
717 | int lttng_event_enabler_disable(struct lttng_event_enabler *event_enabler); | |
718 | struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create( | |
719 | struct lttng_event_notifier_group *event_notifier_group, | |
720 | enum lttng_enabler_format_type format_type, | |
721 | struct lttng_kernel_abi_event_notifier *event_notifier_param); | |
722 | ||
723 | int lttng_event_notifier_enabler_enable( | |
724 | struct lttng_event_notifier_enabler *event_notifier_enabler); | |
725 | int lttng_event_notifier_enabler_disable( | |
726 | struct lttng_event_notifier_enabler *event_notifier_enabler); | |
727 | ||
728 | int lttng_event_enabler_attach_filter_bytecode(struct lttng_event_enabler *event_enabler, | |
729 | struct lttng_kernel_abi_filter_bytecode __user *bytecode); | |
730 | int lttng_event_notifier_enabler_attach_filter_bytecode( | |
731 | struct lttng_event_notifier_enabler *event_notifier_enabler, | |
732 | struct lttng_kernel_abi_filter_bytecode __user *bytecode); | |
733 | int lttng_event_notifier_enabler_attach_capture_bytecode( | |
734 | struct lttng_event_notifier_enabler *event_notifier_enabler, | |
735 | struct lttng_kernel_abi_capture_bytecode __user *bytecode); | |
736 | ||
737 | int lttng_desc_match_enabler(const struct lttng_kernel_event_desc *desc, | |
738 | struct lttng_enabler *enabler); | |
739 | ||
740 | void lttng_enabler_link_bytecode(const struct lttng_kernel_event_desc *event_desc, | |
741 | struct lttng_kernel_ctx *ctx, | |
742 | struct list_head *instance_bytecode_runtime_head, | |
743 | struct list_head *enabler_bytecode_runtime_head); | |
744 | ||
745 | #if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS) | |
746 | int lttng_syscalls_register_event(struct lttng_event_enabler *event_enabler); | |
747 | int lttng_syscalls_unregister_channel(struct lttng_channel *chan); | |
748 | int lttng_syscalls_destroy_event(struct lttng_channel *chan); | |
749 | int lttng_syscall_filter_enable_event( | |
750 | struct lttng_channel *chan, | |
751 | struct lttng_kernel_event_recorder *event); | |
752 | int lttng_syscall_filter_disable_event( | |
753 | struct lttng_channel *chan, | |
754 | struct lttng_kernel_event_recorder *event); | |
755 | ||
756 | long lttng_channel_syscall_mask(struct lttng_channel *channel, | |
757 | struct lttng_kernel_abi_syscall_mask __user *usyscall_mask); | |
758 | ||
759 | int lttng_syscalls_register_event_notifier( | |
760 | struct lttng_event_notifier_enabler *event_notifier_enabler); | |
761 | int lttng_syscalls_create_matching_event_notifiers( | |
762 | struct lttng_event_notifier_enabler *event_notifier_enabler); | |
763 | int lttng_syscalls_unregister_event_notifier_group(struct lttng_event_notifier_group *group); | |
764 | int lttng_syscall_filter_enable_event_notifier(struct lttng_kernel_event_notifier *event_notifier); | |
765 | int lttng_syscall_filter_disable_event_notifier(struct lttng_kernel_event_notifier *event_notifier); | |
766 | #else | |
767 | static inline int lttng_syscalls_register_event( | |
768 | struct lttng_event_enabler *event_enabler) | |
769 | { | |
770 | return -ENOSYS; | |
771 | } | |
772 | ||
773 | static inline int lttng_syscalls_unregister_channel(struct lttng_channel *chan) | |
774 | { | |
775 | return 0; | |
776 | } | |
777 | ||
778 | static inline int lttng_syscalls_destroy(struct lttng_channel *chan) | |
779 | { | |
780 | return 0; | |
781 | } | |
782 | ||
783 | static inline int lttng_syscall_filter_enable_event(struct lttng_channel *chan, | |
784 | struct lttng_kernel_event_recorder *event); | |
785 | { | |
786 | return -ENOSYS; | |
787 | } | |
788 | ||
789 | static inline int lttng_syscall_filter_disable_event(struct lttng_channel *chan, | |
790 | struct lttng_kernel_event_recorder *event); | |
791 | { | |
792 | return -ENOSYS; | |
793 | } | |
794 | ||
795 | static inline long lttng_channel_syscall_mask(struct lttng_channel *channel, | |
796 | struct lttng_kernel_syscall_mask __user *usyscall_mask) | |
797 | { | |
798 | return -ENOSYS; | |
799 | } | |
800 | ||
801 | static inline int lttng_syscalls_register_event_notifier( | |
802 | struct lttng_event_notifier_group *group) | |
803 | { | |
804 | return -ENOSYS; | |
805 | } | |
806 | ||
807 | static inline int lttng_syscalls_unregister_event_notifier_group( | |
808 | struct lttng_event_notifier_group *group) | |
809 | { | |
810 | return 0; | |
811 | } | |
812 | ||
813 | static inline int lttng_syscall_filter_enable_event_notifier( | |
814 | struct lttng_event_notifier_group *group, | |
815 | const char *name) | |
816 | { | |
817 | return -ENOSYS; | |
818 | } | |
819 | ||
820 | static inline int lttng_syscall_filter_disable_event_notifier( | |
821 | struct lttng_event_notifier_group *group, | |
822 | const char *name) | |
823 | { | |
824 | return -ENOSYS; | |
825 | } | |
0fe45627 | 826 | |
311e655a | 827 | #endif |
0fe45627 | 828 | |
e4a26d6b MD |
829 | #ifdef CONFIG_KPROBES |
830 | int lttng_kprobes_register_event(const char *name, | |
831 | const char *symbol_name, | |
832 | uint64_t offset, | |
833 | uint64_t addr, | |
834 | struct lttng_kernel_event_recorder *event); | |
835 | void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event); | |
836 | void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event); | |
837 | int lttng_kprobes_register_event_notifier(const char *symbol_name, | |
838 | uint64_t offset, | |
839 | uint64_t addr, | |
840 | struct lttng_kernel_event_notifier *event_notifier); | |
841 | void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier); | |
842 | void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier); | |
843 | #else | |
844 | static inline | |
845 | int lttng_kprobes_register_event(const char *name, | |
846 | const char *symbol_name, | |
847 | uint64_t offset, | |
848 | uint64_t addr, | |
849 | struct lttng_kernel_event_recorder *event) | |
850 | { | |
851 | return -ENOSYS; | |
852 | } | |
853 | ||
854 | static inline | |
855 | void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event) | |
856 | { | |
857 | } | |
858 | ||
859 | static inline | |
860 | void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event) | |
861 | { | |
862 | } | |
863 | ||
864 | static inline | |
865 | int lttng_kprobes_register_event_notifier(const char *symbol_name, | |
866 | uint64_t offset, | |
867 | uint64_t addr, | |
868 | struct lttng_kernel_event_notifier *event_notifier) | |
869 | { | |
870 | return -ENOSYS; | |
871 | } | |
872 | ||
873 | static inline | |
874 | void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier) | |
875 | { | |
876 | } | |
877 | ||
878 | static inline | |
879 | void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier) | |
880 | { | |
881 | } | |
882 | #endif | |
883 | ||
884 | int lttng_event_add_callsite(struct lttng_kernel_event_common *event, | |
885 | struct lttng_kernel_abi_event_callsite __user *callsite); | |
886 | ||
887 | #ifdef CONFIG_UPROBES | |
888 | int lttng_uprobes_register_event(const char *name, | |
889 | int fd, struct lttng_kernel_event_recorder *event); | |
890 | int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event, | |
891 | struct lttng_kernel_abi_event_callsite __user *callsite); | |
892 | void lttng_uprobes_unregister_event(struct lttng_kernel_event_recorder *event); | |
893 | void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_recorder *event); | |
894 | int lttng_uprobes_register_event_notifier(const char *name, | |
895 | int fd, struct lttng_kernel_event_notifier *event_notifier); | |
896 | void lttng_uprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier); | |
897 | void lttng_uprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier); | |
898 | #else | |
899 | static inline | |
900 | int lttng_uprobes_register_event(const char *name, | |
901 | int fd, struct lttng_kernel_event_recorder *event) | |
902 | { | |
903 | return -ENOSYS; | |
904 | } | |
905 | ||
906 | static inline | |
907 | int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event, | |
908 | struct lttng_kernel_abi_event_callsite __user *callsite) | |
909 | { | |
910 | return -ENOSYS; | |
911 | } | |
912 | ||
913 | static inline | |
914 | void lttng_uprobes_unregister_event(struct lttng_kernel_event_recorder *event) | |
915 | { | |
916 | } | |
917 | ||
918 | static inline | |
919 | void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_recorder *event) | |
920 | { | |
921 | } | |
922 | ||
923 | static inline | |
924 | int lttng_uprobes_register_event_notifier(const char *name, | |
925 | int fd, struct lttng_kernel_event_notifier *event_notifier) | |
926 | { | |
927 | return -ENOSYS; | |
928 | } | |
929 | ||
930 | static inline | |
931 | void lttng_uprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier) | |
932 | { | |
933 | } | |
934 | ||
935 | static inline | |
936 | void lttng_uprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier) | |
937 | { | |
938 | } | |
939 | #endif | |
940 | ||
941 | #ifdef CONFIG_KRETPROBES | |
942 | int lttng_kretprobes_register(const char *name, | |
943 | const char *symbol_name, | |
944 | uint64_t offset, | |
945 | uint64_t addr, | |
946 | struct lttng_kernel_event_recorder *event_entry, | |
947 | struct lttng_kernel_event_recorder *event_exit); | |
948 | void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event); | |
949 | void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event); | |
950 | int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event, | |
951 | int enable); | |
952 | #else | |
953 | static inline | |
954 | int lttng_kretprobes_register(const char *name, | |
955 | const char *symbol_name, | |
956 | uint64_t offset, | |
957 | uint64_t addr, | |
958 | struct lttng_kernel_event_recorder *event_entry, | |
959 | struct lttng_kernel_event_recorder *event_exit) | |
960 | { | |
961 | return -ENOSYS; | |
962 | } | |
963 | ||
964 | static inline | |
965 | void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event) | |
966 | { | |
967 | } | |
968 | ||
969 | static inline | |
970 | void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event) | |
971 | { | |
972 | } | |
973 | ||
974 | static inline | |
975 | int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event, | |
976 | int enable) | |
977 | { | |
978 | return -ENOSYS; | |
979 | } | |
980 | #endif | |
981 | ||
e8c0bbd3 MD |
982 | void lttng_lock_sessions(void); |
983 | void lttng_unlock_sessions(void); | |
984 | ||
985 | struct list_head *lttng_get_probe_list_head(void); | |
986 | ||
987 | int lttng_fix_pending_events(void); | |
988 | int lttng_fix_pending_event_notifiers(void); | |
989 | int lttng_session_active(void); | |
990 | bool lttng_event_notifier_active(void); | |
991 | ||
8cdc1a81 MD |
992 | struct lttng_kernel_session *lttng_session_create(void); |
993 | int lttng_session_enable(struct lttng_kernel_session *session); | |
994 | int lttng_session_disable(struct lttng_kernel_session *session); | |
995 | void lttng_session_destroy(struct lttng_kernel_session *session); | |
996 | int lttng_session_metadata_regenerate(struct lttng_kernel_session *session); | |
997 | int lttng_session_statedump(struct lttng_kernel_session *session); | |
e8c0bbd3 MD |
998 | void metadata_cache_destroy(struct kref *kref); |
999 | ||
1000 | struct lttng_counter *lttng_kernel_counter_create( | |
1001 | const char *counter_transport_name, size_t number_dimensions, | |
1002 | const size_t *dimensions_sizes); | |
1003 | int lttng_kernel_counter_read(struct lttng_counter *counter, | |
1004 | const size_t *dimension_indexes, int32_t cpu, | |
1005 | int64_t *val, bool *overflow, bool *underflow); | |
1006 | int lttng_kernel_counter_aggregate(struct lttng_counter *counter, | |
1007 | const size_t *dimension_indexes, int64_t *val, | |
1008 | bool *overflow, bool *underflow); | |
1009 | int lttng_kernel_counter_clear(struct lttng_counter *counter, | |
1010 | const size_t *dimension_indexes); | |
1011 | struct lttng_event_notifier_group *lttng_event_notifier_group_create(void); | |
1012 | int lttng_event_notifier_group_create_error_counter( | |
1013 | struct file *event_notifier_group_file, | |
1014 | const struct lttng_kernel_abi_counter_conf *error_counter_conf); | |
1015 | void lttng_event_notifier_group_destroy( | |
1016 | struct lttng_event_notifier_group *event_notifier_group); | |
1017 | ||
8cdc1a81 | 1018 | struct lttng_channel *lttng_channel_create(struct lttng_kernel_session *session, |
e8c0bbd3 MD |
1019 | const char *transport_name, |
1020 | void *buf_addr, | |
1021 | size_t subbuf_size, size_t num_subbuf, | |
1022 | unsigned int switch_timer_interval, | |
1023 | unsigned int read_timer_interval, | |
1024 | enum channel_type channel_type); | |
8cdc1a81 | 1025 | struct lttng_channel *lttng_global_channel_create(struct lttng_kernel_session *session, |
e8c0bbd3 MD |
1026 | int overwrite, void *buf_addr, |
1027 | size_t subbuf_size, size_t num_subbuf, | |
1028 | unsigned int switch_timer_interval, | |
1029 | unsigned int read_timer_interval); | |
1030 | ||
1031 | void lttng_metadata_channel_destroy(struct lttng_channel *chan); | |
1032 | struct lttng_kernel_event_recorder *lttng_kernel_event_recorder_create(struct lttng_channel *chan, | |
1033 | struct lttng_kernel_abi_event *event_param, | |
1034 | const struct lttng_kernel_event_desc *event_desc, | |
1035 | enum lttng_kernel_abi_instrumentation itype); | |
1036 | struct lttng_kernel_event_recorder *_lttng_kernel_event_recorder_create(struct lttng_channel *chan, | |
1037 | struct lttng_kernel_abi_event *event_param, | |
1038 | const struct lttng_kernel_event_desc *event_desc, | |
1039 | enum lttng_kernel_abi_instrumentation itype); | |
1040 | struct lttng_kernel_event_recorder *lttng_event_compat_old_create(struct lttng_channel *chan, | |
1041 | struct lttng_kernel_abi_old_event *old_event_param, | |
1042 | const struct lttng_kernel_event_desc *internal_desc); | |
1043 | ||
1044 | struct lttng_kernel_event_notifier *lttng_event_notifier_create( | |
1045 | const struct lttng_kernel_event_desc *event_notifier_desc, | |
1046 | uint64_t id, | |
1047 | uint64_t error_counter_idx, | |
1048 | struct lttng_event_notifier_group *event_notifier_group, | |
1049 | struct lttng_kernel_abi_event_notifier *event_notifier_param, | |
1050 | enum lttng_kernel_abi_instrumentation itype); | |
1051 | struct lttng_kernel_event_notifier *_lttng_event_notifier_create( | |
1052 | const struct lttng_kernel_event_desc *event_notifier_desc, | |
1053 | uint64_t id, | |
1054 | uint64_t error_counter_idx, | |
1055 | struct lttng_event_notifier_group *event_notifier_group, | |
1056 | struct lttng_kernel_abi_event_notifier *event_notifier_param, | |
1057 | enum lttng_kernel_abi_instrumentation itype); | |
1058 | ||
1059 | int lttng_channel_enable(struct lttng_channel *channel); | |
1060 | int lttng_channel_disable(struct lttng_channel *channel); | |
1061 | int lttng_event_enable(struct lttng_kernel_event_common *event); | |
1062 | int lttng_event_disable(struct lttng_kernel_event_common *event); | |
1063 | ||
1064 | void lttng_transport_register(struct lttng_transport *transport); | |
1065 | void lttng_transport_unregister(struct lttng_transport *transport); | |
1066 | ||
1067 | void lttng_counter_transport_register(struct lttng_counter_transport *transport); | |
1068 | void lttng_counter_transport_unregister(struct lttng_counter_transport *transport); | |
1069 | ||
1070 | void synchronize_trace(void); | |
1071 | int lttng_abi_init(void); | |
1072 | int lttng_abi_compat_old_init(void); | |
1073 | void lttng_abi_exit(void); | |
1074 | void lttng_abi_compat_old_exit(void); | |
1075 | ||
1076 | const struct lttng_kernel_event_desc *lttng_event_desc_get(const char *name); | |
1077 | void lttng_event_desc_put(const struct lttng_kernel_event_desc *desc); | |
1078 | int lttng_probes_init(void); | |
1079 | void lttng_probes_exit(void); | |
1080 | ||
1081 | int lttng_metadata_output_channel(struct lttng_metadata_stream *stream, | |
1082 | struct channel *chan, bool *coherent); | |
1083 | ||
1084 | int lttng_id_tracker_get_node_id(const struct lttng_id_hash_node *node); | |
8c0393c3 MD |
1085 | int lttng_id_tracker_empty_set(struct lttng_kernel_id_tracker *lf); |
1086 | int lttng_id_tracker_init(struct lttng_kernel_id_tracker *lf, | |
1087 | struct lttng_kernel_session *session, | |
1088 | enum tracker_type type); | |
1089 | void lttng_id_tracker_fini(struct lttng_kernel_id_tracker *lf); | |
1090 | void lttng_id_tracker_destroy(struct lttng_kernel_id_tracker *lf, bool rcu); | |
1091 | int lttng_id_tracker_add(struct lttng_kernel_id_tracker *lf, int id); | |
1092 | int lttng_id_tracker_del(struct lttng_kernel_id_tracker *lf, int id); | |
e8c0bbd3 | 1093 | |
8cdc1a81 | 1094 | int lttng_session_track_id(struct lttng_kernel_session *session, |
e8c0bbd3 | 1095 | enum tracker_type tracker_type, int id); |
8cdc1a81 | 1096 | int lttng_session_untrack_id(struct lttng_kernel_session *session, |
e8c0bbd3 MD |
1097 | enum tracker_type tracker_type, int id); |
1098 | ||
8cdc1a81 | 1099 | int lttng_session_list_tracker_ids(struct lttng_kernel_session *session, |
e8c0bbd3 MD |
1100 | enum tracker_type tracker_type); |
1101 | ||
1102 | void lttng_clock_ref(void); | |
1103 | void lttng_clock_unref(void); | |
1104 | ||
1105 | void lttng_free_event_filter_runtime(struct lttng_kernel_event_common *event); | |
1106 | ||
1107 | int lttng_probes_init(void); | |
1108 | ||
1109 | int lttng_logger_init(void); | |
1110 | void lttng_logger_exit(void); | |
1111 | ||
8cdc1a81 | 1112 | extern int lttng_statedump_start(struct lttng_kernel_session *session); |
e8c0bbd3 MD |
1113 | |
1114 | int lttng_calibrate(struct lttng_kernel_abi_calibrate *calibrate); | |
1115 | ||
1116 | extern const struct file_operations lttng_tracepoint_list_fops; | |
1117 | extern const struct file_operations lttng_syscall_list_fops; | |
1118 | ||
0fe45627 MD |
1119 | #define lttng_kernel_static_ctx_field(_event_field, _get_size, _record, _get_value, _destroy, _priv) \ |
1120 | __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_ctx_field, { \ | |
1121 | .event_field = (_event_field), \ | |
1122 | .get_size = (_get_size), \ | |
1123 | .record = (_record), \ | |
1124 | .get_value = (_get_value), \ | |
1125 | .destroy = (_destroy), \ | |
1126 | .priv = (_priv), \ | |
1127 | }) | |
1128 | ||
92bc1e23 | 1129 | #endif /* _LTTNG_EVENTS_INTERNAL_H */ |