Commit | Line | Data |
---|---|---|
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 | 11 | #include <wrapper/compiler_attributes.h> |
f3559e5b | 12 | #include <wrapper/uuid.h> |
c190d76e | 13 | |
437d5aa5 MD |
14 | #include <lttng/events.h> |
15 | ||
344fe0f6 | 16 | struct lttng_syscall_filter; |
7c1ba2ca MD |
17 | struct lttng_metadata_cache; |
18 | struct perf_event; | |
19 | struct perf_event_attr; | |
e20c0fec | 20 | struct lttng_kernel_ring_buffer_config; |
81ab5b77 | 21 | struct lttng_kernel_counter_dimension; |
344fe0f6 | 22 | |
311e655a MD |
23 | enum lttng_enabler_format_type { |
24 | LTTNG_ENABLER_FORMAT_STAR_GLOB, | |
25 | LTTNG_ENABLER_FORMAT_NAME, | |
26 | }; | |
27 | ||
4dc7510d MD |
28 | enum lttng_kernel_event_enabler_type { |
29 | LTTNG_EVENT_ENABLER_TYPE_RECORDER, | |
30 | LTTNG_EVENT_ENABLER_TYPE_NOTIFIER, | |
48c210a7 | 31 | LTTNG_EVENT_ENABLER_TYPE_COUNTER, |
4dc7510d MD |
32 | }; |
33 | ||
f7d06400 MD |
34 | enum channel_type { |
35 | PER_CPU_CHANNEL, | |
36 | METADATA_CHANNEL, | |
37 | }; | |
38 | ||
311e655a MD |
39 | /* |
40 | * Objects in a linked-list of enablers, owned by an event. | |
41 | */ | |
42 | struct lttng_enabler_ref { | |
43 | struct list_head node; /* enabler ref list */ | |
8d554755 | 44 | struct lttng_event_enabler_common *ref; /* backward ref */ |
311e655a MD |
45 | }; |
46 | ||
e978f274 MD |
47 | struct lttng_krp; /* Kretprobe handling */ |
48 | ||
49 | struct lttng_uprobe_handler { | |
50 | struct lttng_kernel_event_common *event; | |
51 | loff_t offset; | |
52 | struct uprobe_consumer up_consumer; | |
53 | struct list_head node; | |
54 | }; | |
55 | ||
56 | struct lttng_kprobe { | |
57 | struct kprobe kp; | |
58 | char *symbol_name; | |
fd0402f3 MD |
59 | uint64_t addr; |
60 | uint64_t offset; | |
61 | kprobe_pre_handler_t pre_handler; | |
e978f274 MD |
62 | }; |
63 | ||
64 | struct lttng_uprobe { | |
65 | struct inode *inode; | |
66 | struct list_head head; | |
67 | }; | |
68 | ||
69 | enum lttng_syscall_entryexit { | |
70 | LTTNG_SYSCALL_ENTRY, | |
71 | LTTNG_SYSCALL_EXIT, | |
72 | }; | |
73 | ||
74 | enum lttng_syscall_abi { | |
75 | LTTNG_SYSCALL_ABI_NATIVE, | |
76 | LTTNG_SYSCALL_ABI_COMPAT, | |
77 | }; | |
78 | ||
99414eaf MD |
79 | enum lttng_kretprobe_entryexit { |
80 | LTTNG_KRETPROBE_ENTRY, | |
81 | LTTNG_KRETPROBE_EXIT, | |
82 | ||
83 | NR_LTTNG_KRETPROBE_ENTRYEXIT, | |
84 | }; | |
85 | ||
a67ba386 MD |
86 | struct lttng_kernel_event_common_private { |
87 | struct lttng_kernel_event_common *pub; /* Public event interface */ | |
88 | ||
89 | const struct lttng_kernel_event_desc *desc; | |
90 | /* Backward references: list of lttng_enabler_ref (ref to enablers) */ | |
91 | struct list_head enablers_ref_head; | |
92 | int registered; /* has reg'd tracepoint probe */ | |
93 | uint64_t user_token; | |
94 | ||
95 | int has_enablers_without_filter_bytecode; | |
218585b9 | 96 | /* list of struct lttng_kernel_bytecode_runtime, sorted by seqnum */ |
a67ba386 | 97 | struct list_head filter_bytecode_runtime_head; |
19bef247 | 98 | |
49b1a300 | 99 | struct hlist_node hlist_name_node; /* node in events name hash table */ |
f237aef8 | 100 | struct list_head node; /* node in event list */ |
19bef247 | 101 | |
a67ba386 MD |
102 | enum lttng_kernel_abi_instrumentation instrumentation; |
103 | /* Selected by instrumentation */ | |
104 | union { | |
105 | struct lttng_kprobe kprobe; | |
106 | struct lttng_uprobe uprobe; | |
107 | struct { | |
99414eaf | 108 | enum lttng_kretprobe_entryexit entryexit; |
a67ba386 MD |
109 | struct lttng_krp *lttng_krp; |
110 | char *symbol_name; | |
111 | } kretprobe; | |
112 | struct { | |
113 | enum lttng_syscall_entryexit entryexit; | |
114 | enum lttng_syscall_abi abi; | |
115 | struct hlist_node node; /* chain registered syscall event_notifier */ | |
116 | unsigned int syscall_id; | |
117 | } syscall; | |
118 | } u; | |
119 | }; | |
120 | ||
6b4e37a3 | 121 | struct lttng_kernel_event_session_common_private { |
a67ba386 MD |
122 | struct lttng_kernel_event_common_private parent; |
123 | ||
6b4e37a3 MD |
124 | struct lttng_kernel_channel_common *chan; |
125 | uint64_t id; /* Event id */ | |
126 | }; | |
127 | ||
128 | struct lttng_kernel_event_recorder_private { | |
129 | struct lttng_kernel_event_session_common_private parent; | |
130 | ||
131 | struct lttng_kernel_event_recorder *pub; /* Public event interface */ | |
a67ba386 MD |
132 | unsigned int metadata_dumped:1; |
133 | }; | |
134 | ||
7b0f1e69 MD |
135 | #define LTTNG_KERNEL_COUNTER_KEY_LEN 256 |
136 | ||
d9a337ba MD |
137 | enum lttng_event_counter_action { |
138 | LTTNG_EVENT_COUNTER_ACTION_INCREMENT = 0, | |
139 | }; | |
140 | ||
bf584a02 MD |
141 | struct lttng_kernel_event_counter_private { |
142 | struct lttng_kernel_event_session_common_private parent; | |
143 | ||
144 | struct lttng_kernel_event_counter *pub; /* Public event interface */ | |
49b1a300 | 145 | struct hlist_node hlist_key_node; /* node in events key hash table */ |
d9a337ba | 146 | enum lttng_event_counter_action action; |
7b0f1e69 | 147 | char key[LTTNG_KERNEL_COUNTER_KEY_LEN]; |
bf584a02 MD |
148 | }; |
149 | ||
a67ba386 MD |
150 | struct lttng_kernel_event_notifier_private { |
151 | struct lttng_kernel_event_common_private parent; | |
152 | ||
153 | struct lttng_kernel_event_notifier *pub; /* Public event notifier interface */ | |
154 | struct lttng_event_notifier_group *group; /* weak ref */ | |
155 | size_t num_captures; /* Needed to allocate the msgpack array. */ | |
156 | uint64_t error_counter_index; | |
a67ba386 | 157 | struct list_head capture_bytecode_runtime_head; |
a67ba386 MD |
158 | }; |
159 | ||
0bb716a8 | 160 | struct lttng_kernel_syscall_table { |
f7d06400 | 161 | unsigned int sys_enter_registered:1, |
0bb716a8 MD |
162 | sys_exit_registered:1; |
163 | ||
164 | struct hlist_head *syscall_dispatch; /* for syscall tracing */ | |
165 | struct hlist_head *compat_syscall_dispatch; | |
166 | struct hlist_head *syscall_exit_dispatch; /* for syscall exit tracing */ | |
167 | struct hlist_head *compat_syscall_exit_dispatch; | |
168 | ||
169 | /* | |
170 | * Combining all unknown syscall events works as long as they | |
171 | * are only matched by "all" syscalls enablers, but will require | |
172 | * a design change when we allow matching by syscall number, for | |
173 | * instance by allocating sc_tables accomodating NR_syscalls | |
174 | * entries. | |
175 | */ | |
176 | struct hlist_head unknown_syscall_dispatch; /* for unknown syscalls */ | |
177 | struct hlist_head compat_unknown_syscall_dispatch; | |
178 | struct hlist_head unknown_syscall_exit_dispatch; | |
179 | struct hlist_head compat_unknown_syscall_exit_dispatch; | |
180 | ||
f7d06400 MD |
181 | struct lttng_syscall_filter *sc_filter; |
182 | int syscall_all_entry; | |
183 | int syscall_all_exit; | |
184 | }; | |
185 | ||
0bb716a8 MD |
186 | struct lttng_kernel_channel_common_private { |
187 | struct lttng_kernel_channel_common *pub; | |
188 | ||
189 | struct file *file; /* File associated to channel */ | |
190 | unsigned int tstate:1; /* Transient enable state */ | |
48c210a7 | 191 | bool coalesce_hits; |
0bb716a8 | 192 | |
2ff86ce2 MD |
193 | struct list_head node; /* Channel list in session */ |
194 | ||
0bb716a8 MD |
195 | struct lttng_kernel_syscall_table syscall_table; |
196 | }; | |
197 | ||
f7d06400 MD |
198 | struct lttng_kernel_channel_buffer_private { |
199 | struct lttng_kernel_channel_common_private parent; | |
200 | ||
201 | struct lttng_kernel_channel_buffer *pub; | |
202 | ||
203 | unsigned int id; /* Channel ID */ | |
204 | unsigned int free_event_id; /* Next event ID to allocate */ | |
205 | int header_type; /* 0: unset, 1: compact, 2: large */ | |
206 | ||
207 | enum channel_type channel_type; | |
208 | struct lttng_kernel_ctx *ctx; | |
860c213b | 209 | struct lttng_kernel_ring_buffer_channel *rb_chan; /* Ring buffer channel */ |
f7d06400 | 210 | unsigned int metadata_dumped:1; |
f7d06400 MD |
211 | struct lttng_transport *transport; |
212 | }; | |
213 | ||
954337a4 MD |
214 | struct lttng_kernel_channel_counter_ops_private { |
215 | struct lttng_kernel_channel_counter_ops *pub; /* Public channel counter ops interface */ | |
216 | ||
217 | struct lttng_kernel_channel_counter *(*counter_create)(size_t nr_dimensions, | |
81ab5b77 | 218 | const struct lttng_kernel_counter_dimension *dimensions, |
954337a4 MD |
219 | int64_t global_sum_step); |
220 | void (*counter_destroy)(struct lttng_kernel_channel_counter *counter); | |
221 | int (*counter_add)(struct lttng_kernel_channel_counter *counter, | |
222 | const size_t *dimension_indexes, int64_t v); | |
76ba9cee MD |
223 | /* |
224 | * counter_read reads a specific cpu's counter if @cpu >= 0, or | |
225 | * the global aggregation counter if @cpu == -1. | |
226 | */ | |
954337a4 MD |
227 | int (*counter_read)(struct lttng_kernel_channel_counter *counter, |
228 | const size_t *dimension_indexes, int cpu, | |
229 | int64_t *value, bool *overflow, bool *underflow); | |
76ba9cee MD |
230 | /* |
231 | * counter_aggregate returns the total sum of all per-cpu counters and | |
232 | * the global aggregation counter. | |
233 | */ | |
954337a4 MD |
234 | int (*counter_aggregate)(struct lttng_kernel_channel_counter *counter, |
235 | const size_t *dimension_indexes, int64_t *value, | |
236 | bool *overflow, bool *underflow); | |
237 | int (*counter_clear)(struct lttng_kernel_channel_counter *counter, | |
238 | const size_t *dimension_indexes); | |
dc1f2f73 MD |
239 | int (*counter_get_nr_dimensions)(struct lttng_kernel_channel_counter *counter, |
240 | size_t *nr_dimensions); | |
241 | int (*counter_get_max_nr_elem)(struct lttng_kernel_channel_counter *counter, | |
242 | size_t *max_nr_elem); /* array of size nr_dimensions */ | |
954337a4 MD |
243 | }; |
244 | ||
4a6c2fbf MD |
245 | struct lttng_counter_map_descriptor { |
246 | uint64_t user_token; | |
247 | size_t array_index; | |
345beadc | 248 | char key[LTTNG_KERNEL_COUNTER_KEY_LEN]; |
4a6c2fbf MD |
249 | }; |
250 | ||
251 | struct lttng_counter_map { | |
252 | struct lttng_counter_map_descriptor *descriptors; | |
253 | size_t nr_descriptors; | |
254 | size_t alloc_len; | |
255 | struct mutex lock; /* counter map lock */ | |
256 | }; | |
257 | ||
954337a4 MD |
258 | struct lttng_kernel_channel_counter_private { |
259 | struct lttng_kernel_channel_common_private parent; | |
260 | ||
261 | struct lttng_kernel_channel_counter *pub; /* Public channel counter interface */ | |
262 | struct lib_counter *counter; | |
263 | struct lttng_kernel_channel_counter_ops *ops; | |
264 | ||
4a6c2fbf MD |
265 | struct lttng_counter_map map; |
266 | ||
76ba9cee MD |
267 | /* Owned either by session or event notifier group. */ |
268 | ||
269 | /* Session or event notifier group file owner. */ | |
270 | struct file *owner; | |
271 | ||
954337a4 MD |
272 | /* Event notifier group owner. */ |
273 | struct lttng_event_notifier_group *event_notifier_group; | |
274 | ||
275 | /* Session owner. */ | |
954337a4 | 276 | size_t free_index; /* Next index to allocate */ |
76ba9cee | 277 | struct lttng_counter_transport *transport; |
954337a4 MD |
278 | }; |
279 | ||
8a445457 MD |
280 | enum lttng_kernel_bytecode_interpreter_ret { |
281 | LTTNG_KERNEL_BYTECODE_INTERPRETER_ERROR = -1, | |
282 | LTTNG_KERNEL_BYTECODE_INTERPRETER_OK = 0, | |
283 | }; | |
284 | ||
285 | enum lttng_kernel_bytecode_filter_result { | |
286 | LTTNG_KERNEL_BYTECODE_FILTER_ACCEPT = 0, | |
287 | LTTNG_KERNEL_BYTECODE_FILTER_REJECT = 1, | |
288 | }; | |
289 | ||
290 | struct lttng_kernel_bytecode_filter_ctx { | |
291 | enum lttng_kernel_bytecode_filter_result result; | |
292 | }; | |
293 | ||
1efb0502 MD |
294 | struct lttng_interpreter_output; |
295 | ||
296 | enum lttng_kernel_bytecode_type { | |
297 | LTTNG_KERNEL_BYTECODE_TYPE_FILTER, | |
298 | LTTNG_KERNEL_BYTECODE_TYPE_CAPTURE, | |
299 | }; | |
300 | ||
301 | struct lttng_kernel_bytecode_node { | |
302 | enum lttng_kernel_bytecode_type type; | |
303 | struct list_head node; | |
8d554755 | 304 | struct lttng_event_enabler_common *enabler; |
1efb0502 MD |
305 | struct { |
306 | uint32_t len; | |
307 | uint32_t reloc_offset; | |
308 | uint64_t seqnum; | |
309 | char data[]; | |
310 | } bc; | |
311 | }; | |
312 | ||
313 | struct lttng_kernel_bytecode_runtime { | |
314 | /* Associated bytecode */ | |
315 | enum lttng_kernel_bytecode_type type; | |
316 | struct lttng_kernel_bytecode_node *bc; | |
317 | int (*interpreter_func)(struct lttng_kernel_bytecode_runtime *kernel_bytecode, | |
318 | const char *interpreter_stack_data, | |
319 | struct lttng_kernel_probe_ctx *lttng_probe_ctx, | |
320 | void *caller_ctx); | |
321 | int link_failed; | |
322 | struct list_head node; /* list of bytecode runtime in event */ | |
323 | struct lttng_kernel_ctx *ctx; | |
324 | }; | |
325 | ||
5e08a34f MD |
326 | /* |
327 | * Enabler field, within whatever object is enabling an event. Target of | |
328 | * backward reference. | |
329 | */ | |
8d554755 | 330 | struct lttng_event_enabler_common { |
0bb716a8 | 331 | enum lttng_kernel_event_enabler_type enabler_type; |
5e08a34f MD |
332 | enum lttng_enabler_format_type format_type; |
333 | ||
d64ca521 | 334 | /* head list of struct lttng_kernel_bytecode_node */ |
5e08a34f MD |
335 | struct list_head filter_bytecode_head; |
336 | ||
337 | struct lttng_kernel_abi_event event_param; | |
338 | unsigned int enabled:1; | |
339 | ||
340 | uint64_t user_token; /* User-provided token. */ | |
09710b83 MD |
341 | |
342 | struct list_head node; /* list of enablers */ | |
343 | bool published; /* published in list. */ | |
5e08a34f MD |
344 | }; |
345 | ||
4a46ca39 | 346 | struct lttng_event_enabler_session_common { |
5b9817ae | 347 | struct lttng_event_enabler_common parent; |
4a46ca39 MD |
348 | struct lttng_kernel_channel_common *chan; |
349 | }; | |
350 | ||
351 | struct lttng_event_recorder_enabler { | |
352 | struct lttng_event_enabler_session_common parent; | |
f7d06400 | 353 | struct lttng_kernel_channel_buffer *chan; |
5e08a34f MD |
354 | }; |
355 | ||
c8aa131c MD |
356 | struct lttng_event_counter_enabler { |
357 | struct lttng_event_enabler_session_common parent; | |
358 | struct lttng_kernel_channel_counter *chan; | |
7b0f1e69 | 359 | struct lttng_kernel_counter_key *key; |
d9a337ba MD |
360 | |
361 | enum lttng_event_counter_action action; | |
c8aa131c MD |
362 | }; |
363 | ||
5e08a34f | 364 | struct lttng_event_notifier_enabler { |
5b9817ae | 365 | struct lttng_event_enabler_common parent; |
5e08a34f | 366 | uint64_t error_counter_index; |
5e08a34f MD |
367 | struct lttng_event_notifier_group *group; |
368 | ||
d64ca521 | 369 | /* head list of struct lttng_kernel_bytecode_node */ |
5e08a34f MD |
370 | struct list_head capture_bytecode_head; |
371 | uint64_t num_captures; | |
372 | }; | |
373 | ||
0fe45627 MD |
374 | struct lttng_ctx_value { |
375 | union { | |
376 | int64_t s64; | |
377 | const char *str; | |
378 | double d; | |
379 | } u; | |
380 | }; | |
381 | ||
382 | /* | |
383 | * We need to keep this perf counter field separately from struct | |
384 | * lttng_kernel_ctx_field because cpu hotplug needs fixed-location addresses. | |
385 | */ | |
386 | struct lttng_perf_counter_field { | |
387 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) | |
388 | struct lttng_cpuhp_node cpuhp_prepare; | |
389 | struct lttng_cpuhp_node cpuhp_online; | |
390 | #else | |
391 | struct notifier_block nb; | |
392 | int hp_enable; | |
393 | #endif | |
394 | struct perf_event_attr *attr; | |
395 | struct perf_event **e; /* per-cpu array */ | |
396 | char *name; | |
397 | struct lttng_kernel_event_field *event_field; | |
398 | }; | |
399 | ||
400 | struct lttng_kernel_ctx_field { | |
401 | const struct lttng_kernel_event_field *event_field; | |
a92e844e | 402 | size_t (*get_size)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx, |
0fe45627 | 403 | size_t offset); |
a92e844e | 404 | void (*record)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx, |
8a57ec02 | 405 | struct lttng_kernel_ring_buffer_ctx *ctx, |
f7d06400 | 406 | struct lttng_kernel_channel_buffer *chan); |
a92e844e | 407 | void (*get_value)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx, |
0fe45627 MD |
408 | struct lttng_ctx_value *value); |
409 | void (*destroy)(void *priv); | |
410 | void *priv; | |
411 | }; | |
412 | ||
413 | struct lttng_kernel_ctx { | |
414 | struct lttng_kernel_ctx_field *fields; | |
415 | unsigned int nr_fields; | |
416 | unsigned int allocated_fields; | |
417 | size_t largest_align; /* in bytes */ | |
418 | }; | |
419 | ||
8a20497f MD |
420 | struct lttng_metadata_cache { |
421 | char *data; /* Metadata cache */ | |
422 | unsigned int cache_alloc; /* Metadata allocated size (bytes) */ | |
423 | unsigned int metadata_written; /* Number of bytes written in metadata cache */ | |
424 | atomic_t producing; /* Metadata being produced (incomplete) */ | |
425 | struct kref refcount; /* Metadata cache usage */ | |
426 | struct list_head metadata_stream; /* Metadata stream list */ | |
f3559e5b | 427 | guid_t uuid; /* Trace session unique ID (copy) */ |
8a20497f MD |
428 | struct mutex lock; /* Produce/consume lock */ |
429 | uint64_t version; /* Current version of the metadata */ | |
430 | }; | |
431 | ||
a44f47dd MD |
432 | struct lttng_metadata_stream { |
433 | void *priv; /* Ring buffer private data */ | |
434 | struct lttng_metadata_cache *metadata_cache; | |
435 | unsigned int metadata_in; /* Bytes read from the cache */ | |
436 | unsigned int metadata_out; /* Bytes consumed from stream */ | |
437 | int finalized; /* Has channel been finalized */ | |
438 | wait_queue_head_t read_wait; /* Reader buffer-level wait queue */ | |
94ac1e17 | 439 | struct list_head node; /* Stream list */ |
a44f47dd MD |
440 | struct lttng_transport *transport; |
441 | uint64_t version; /* Current version of the metadata cache */ | |
442 | bool coherent; /* Stream in a coherent state */ | |
443 | }; | |
444 | ||
44d1600b MD |
445 | struct lttng_kernel_event_pair { |
446 | /* Input */ | |
447 | char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN]; | |
99414eaf MD |
448 | struct lttng_krp *krp; |
449 | bool check_ids; | |
450 | enum lttng_kretprobe_entryexit entryexit; | |
44d1600b MD |
451 | }; |
452 | ||
4a399b76 MD |
453 | struct lttng_kernel_channel_buffer_ops_private { |
454 | struct lttng_kernel_channel_buffer_ops *pub; /* Public channel buffer ops interface */ | |
455 | ||
860c213b | 456 | struct lttng_kernel_ring_buffer_channel *(*channel_create)(const char *name, |
4a399b76 MD |
457 | void *priv, |
458 | void *buf_addr, | |
459 | size_t subbuf_size, size_t num_subbuf, | |
460 | unsigned int switch_timer_interval, | |
461 | unsigned int read_timer_interval); | |
860c213b | 462 | void (*channel_destroy)(struct lttng_kernel_ring_buffer_channel *chan); |
e20c0fec | 463 | struct lttng_kernel_ring_buffer *(*buffer_read_open)(struct lttng_kernel_ring_buffer_channel *chan); |
860c213b | 464 | int (*buffer_has_read_closed_stream)(struct lttng_kernel_ring_buffer_channel *chan); |
e20c0fec | 465 | void (*buffer_read_close)(struct lttng_kernel_ring_buffer *buf); |
4a399b76 MD |
466 | /* |
467 | * packet_avail_size returns the available size in the current | |
468 | * packet. Note that the size returned is only a hint, since it | |
469 | * may change due to concurrent writes. | |
470 | */ | |
860c213b MD |
471 | size_t (*packet_avail_size)(struct lttng_kernel_ring_buffer_channel *chan); |
472 | wait_queue_head_t *(*get_writer_buf_wait_queue)(struct lttng_kernel_ring_buffer_channel *chan, int cpu); | |
473 | wait_queue_head_t *(*get_hp_wait_queue)(struct lttng_kernel_ring_buffer_channel *chan); | |
474 | int (*is_finalized)(struct lttng_kernel_ring_buffer_channel *chan); | |
475 | int (*is_disabled)(struct lttng_kernel_ring_buffer_channel *chan); | |
e20c0fec MD |
476 | int (*timestamp_begin) (const struct lttng_kernel_ring_buffer_config *config, |
477 | struct lttng_kernel_ring_buffer *bufb, | |
4a399b76 | 478 | uint64_t *timestamp_begin); |
e20c0fec MD |
479 | int (*timestamp_end) (const struct lttng_kernel_ring_buffer_config *config, |
480 | struct lttng_kernel_ring_buffer *bufb, | |
4a399b76 | 481 | uint64_t *timestamp_end); |
e20c0fec MD |
482 | int (*events_discarded) (const struct lttng_kernel_ring_buffer_config *config, |
483 | struct lttng_kernel_ring_buffer *bufb, | |
4a399b76 | 484 | uint64_t *events_discarded); |
e20c0fec MD |
485 | int (*content_size) (const struct lttng_kernel_ring_buffer_config *config, |
486 | struct lttng_kernel_ring_buffer *bufb, | |
4a399b76 | 487 | uint64_t *content_size); |
e20c0fec MD |
488 | int (*packet_size) (const struct lttng_kernel_ring_buffer_config *config, |
489 | struct lttng_kernel_ring_buffer *bufb, | |
4a399b76 | 490 | uint64_t *packet_size); |
e20c0fec MD |
491 | int (*stream_id) (const struct lttng_kernel_ring_buffer_config *config, |
492 | struct lttng_kernel_ring_buffer *bufb, | |
4a399b76 | 493 | uint64_t *stream_id); |
e20c0fec MD |
494 | int (*current_timestamp) (const struct lttng_kernel_ring_buffer_config *config, |
495 | struct lttng_kernel_ring_buffer *bufb, | |
4a399b76 | 496 | uint64_t *ts); |
e20c0fec MD |
497 | int (*sequence_number) (const struct lttng_kernel_ring_buffer_config *config, |
498 | struct lttng_kernel_ring_buffer *bufb, | |
4a399b76 | 499 | uint64_t *seq); |
e20c0fec MD |
500 | int (*instance_id) (const struct lttng_kernel_ring_buffer_config *config, |
501 | struct lttng_kernel_ring_buffer *bufb, | |
4a399b76 MD |
502 | uint64_t *id); |
503 | }; | |
504 | ||
33af697f MD |
505 | #define LTTNG_EVENT_HT_BITS 12 |
506 | #define LTTNG_EVENT_HT_SIZE (1U << LTTNG_EVENT_HT_BITS) | |
9190fb56 | 507 | |
33af697f MD |
508 | struct lttng_event_ht { |
509 | struct hlist_head table[LTTNG_EVENT_HT_SIZE]; | |
9190fb56 MD |
510 | }; |
511 | ||
b0315544 MD |
512 | struct lttng_event_notifier_group { |
513 | struct file *file; /* File associated to event notifier group */ | |
514 | struct file *notif_file; /* File used to expose notifications to userspace. */ | |
515 | struct list_head node; /* event notifier group list */ | |
516 | struct list_head enablers_head; /* List of enablers */ | |
517 | struct list_head event_notifiers_head; /* List of event notifier */ | |
f8d37df1 | 518 | struct lttng_event_ht events_name_ht; /* Hash table of event notifiers, indexed by name */ |
b0315544 MD |
519 | struct lttng_kernel_channel_buffer_ops *ops; |
520 | struct lttng_transport *transport; | |
860c213b | 521 | struct lttng_kernel_ring_buffer_channel *chan; /* Ring buffer channel for event notifier group. */ |
e20c0fec | 522 | struct lttng_kernel_ring_buffer *buf; /* Ring buffer for event notifier group. */ |
b0315544 MD |
523 | wait_queue_head_t read_wait; |
524 | struct irq_work wakeup_pending; /* Pending wakeup irq work. */ | |
b0315544 | 525 | |
0bb716a8 | 526 | struct lttng_kernel_syscall_table syscall_table; |
b0315544 | 527 | |
76ba9cee | 528 | struct lttng_kernel_channel_counter *error_counter; |
b0315544 MD |
529 | size_t error_counter_len; |
530 | }; | |
531 | ||
532 | struct lttng_transport { | |
533 | char *name; | |
534 | struct module *owner; | |
535 | struct list_head node; | |
536 | struct lttng_kernel_channel_buffer_ops ops; | |
537 | }; | |
538 | ||
539 | struct lttng_counter_transport { | |
540 | char *name; | |
541 | struct module *owner; | |
542 | struct list_head node; | |
76ba9cee | 543 | struct lttng_kernel_channel_counter_ops ops; |
b0315544 MD |
544 | }; |
545 | ||
8cdc1a81 MD |
546 | struct lttng_kernel_session_private { |
547 | struct lttng_kernel_session *pub; /* Public session interface */ | |
548 | ||
549 | int been_active; /* Has trace session been active ? */ | |
550 | struct file *file; /* File associated to session */ | |
0d5e5f34 | 551 | struct list_head chan_head; /* Channel list head */ |
ba5ed2bc | 552 | struct list_head events_head; /* Event list head */ |
87ab615b MD |
553 | struct list_head enablers_head; /* List of event enablers */ |
554 | ||
095a9bf0 | 555 | struct lttng_event_ht events_name_ht; /* Hash table of events, indexed by name */ |
49b1a300 | 556 | struct lttng_event_ht events_key_ht; /* Hash table of events, indexed by key */ |
87ab615b | 557 | |
24909af2 | 558 | struct list_head node; /* Session list */ |
8cdc1a81 | 559 | unsigned int free_chan_id; /* Next chan ID to allocate */ |
f3559e5b | 560 | guid_t uuid; /* Trace session unique ID */ |
8cdc1a81 MD |
561 | struct lttng_metadata_cache *metadata_cache; |
562 | unsigned int metadata_dumped:1, | |
563 | tstate:1; /* Transient enable state */ | |
87ab615b | 564 | |
8cdc1a81 MD |
565 | char name[LTTNG_KERNEL_ABI_SESSION_NAME_LEN]; |
566 | char creation_time[LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN]; | |
567 | }; | |
568 | ||
fc66bf6a MD |
569 | struct lttng_id_hash_node { |
570 | struct hlist_node hlist; | |
571 | int id; | |
572 | }; | |
573 | ||
8c0393c3 MD |
574 | enum tracker_type { |
575 | TRACKER_PID, | |
576 | TRACKER_VPID, | |
577 | TRACKER_UID, | |
578 | TRACKER_VUID, | |
579 | TRACKER_GID, | |
580 | TRACKER_VGID, | |
581 | ||
582 | TRACKER_UNKNOWN, | |
583 | }; | |
584 | ||
585 | struct lttng_kernel_id_tracker_private { | |
586 | struct lttng_kernel_id_tracker *pub; /* Public interface */ | |
587 | ||
588 | struct lttng_kernel_session *session; | |
589 | enum tracker_type tracker_type; | |
590 | }; | |
591 | ||
81ab5b77 MD |
592 | enum lttng_kernel_counter_dimension_flags { |
593 | LTTNG_KERNEL_COUNTER_DIMENSION_FLAG_UNDERFLOW = (1 << 0), | |
594 | LTTNG_KERNEL_COUNTER_DIMENSION_FLAG_OVERFLOW = (1 << 1), | |
595 | }; | |
596 | ||
597 | enum lttng_kernel_counter_conf_flags { | |
598 | LTTNG_KERNEL_COUNTER_CONF_FLAG_COALESCE_HITS = (1 << 0), | |
599 | }; | |
600 | ||
601 | enum lttng_kernel_counter_arithmetic { | |
602 | LTTNG_KERNEL_COUNTER_ARITHMETIC_MODULAR = 0, | |
603 | }; | |
604 | ||
605 | enum lttng_kernel_counter_bitness { | |
606 | LTTNG_KERNEL_COUNTER_BITNESS_32 = 0, | |
607 | LTTNG_KERNEL_COUNTER_BITNESS_64 = 1, | |
608 | }; | |
609 | ||
610 | /* Internally, only 1 dimension is supported fow now. */ | |
611 | #define LTTNG_KERNEL_COUNTER_MAX_DIMENSIONS 1 | |
7b0f1e69 MD |
612 | /* Internally, only 16 tokens are supported for now. */ |
613 | #define LTTNG_KERNEL_COUNTER_MAX_TOKENS 16 | |
81ab5b77 MD |
614 | |
615 | struct lttng_kernel_counter_dimension { | |
616 | uint32_t flags; /* enum lttng_kernel_counter_dimension_flags */ | |
617 | uint64_t size; /* dimension size */ | |
618 | uint64_t underflow_index; | |
619 | uint64_t overflow_index; | |
620 | }; | |
621 | ||
622 | struct lttng_kernel_counter_conf { | |
623 | uint32_t flags; /* enum lttng_kernel_counter_conf_flags */ | |
624 | uint32_t arithmetic; /* enum lttng_kernel_counter_arithmetic */ | |
625 | uint32_t bitness; /* enum lttng_kernel_counter_bitness */ | |
626 | int64_t global_sum_step; | |
627 | struct lttng_kernel_counter_dimension dimension_array[LTTNG_KERNEL_COUNTER_MAX_DIMENSIONS]; | |
628 | }; | |
629 | ||
7b0f1e69 MD |
630 | enum lttng_key_token_type { |
631 | LTTNG_KEY_TOKEN_UNKNOWN = 0, /* Uninitialized. */ | |
632 | ||
633 | LTTNG_KEY_TOKEN_STRING = 1, | |
634 | LTTNG_KEY_TOKEN_EVENT_NAME = 2, | |
635 | }; | |
636 | ||
637 | struct lttng_key_token { | |
638 | enum lttng_key_token_type type; | |
639 | char *str; | |
640 | }; | |
641 | ||
642 | struct lttng_kernel_counter_key_dimension { | |
643 | size_t nr_key_tokens; | |
644 | struct lttng_key_token *token_array; | |
645 | }; | |
646 | ||
647 | struct lttng_kernel_counter_key { | |
648 | size_t nr_dimensions; | |
649 | struct lttng_kernel_counter_key_dimension dimension_array[LTTNG_KERNEL_COUNTER_MAX_DIMENSIONS]; | |
650 | }; | |
651 | ||
652 | struct lttng_kernel_counter_event { | |
653 | struct lttng_kernel_abi_event event_param; | |
654 | struct lttng_kernel_abi_event_ext event_param_ext; | |
655 | ||
656 | struct lttng_kernel_counter_key *counter_key; | |
657 | }; | |
658 | ||
0fe45627 MD |
659 | extern struct lttng_kernel_ctx *lttng_static_ctx; |
660 | ||
437d5aa5 MD |
661 | static inline |
662 | const struct lttng_kernel_type_integer *lttng_kernel_get_type_integer(const struct lttng_kernel_type_common *type) | |
663 | { | |
664 | if (type->type != lttng_kernel_type_integer) | |
665 | return NULL; | |
666 | return container_of(type, const struct lttng_kernel_type_integer, parent); | |
667 | } | |
668 | ||
669 | static inline | |
670 | const struct lttng_kernel_type_string *lttng_kernel_get_type_string(const struct lttng_kernel_type_common *type) | |
671 | { | |
672 | if (type->type != lttng_kernel_type_string) | |
673 | return NULL; | |
674 | return container_of(type, const struct lttng_kernel_type_string, parent); | |
675 | } | |
676 | ||
677 | static inline | |
678 | const struct lttng_kernel_type_enum *lttng_kernel_get_type_enum(const struct lttng_kernel_type_common *type) | |
679 | { | |
680 | if (type->type != lttng_kernel_type_enum) | |
681 | return NULL; | |
682 | return container_of(type, const struct lttng_kernel_type_enum, parent); | |
683 | } | |
684 | ||
685 | static inline | |
686 | const struct lttng_kernel_type_array *lttng_kernel_get_type_array(const struct lttng_kernel_type_common *type) | |
687 | { | |
688 | if (type->type != lttng_kernel_type_array) | |
689 | return NULL; | |
690 | return container_of(type, const struct lttng_kernel_type_array, parent); | |
691 | } | |
692 | ||
693 | static inline | |
694 | const struct lttng_kernel_type_sequence *lttng_kernel_get_type_sequence(const struct lttng_kernel_type_common *type) | |
695 | { | |
696 | if (type->type != lttng_kernel_type_sequence) | |
697 | return NULL; | |
698 | return container_of(type, const struct lttng_kernel_type_sequence, parent); | |
699 | } | |
700 | ||
701 | static inline | |
702 | const struct lttng_kernel_type_struct *lttng_kernel_get_type_struct(const struct lttng_kernel_type_common *type) | |
703 | { | |
704 | if (type->type != lttng_kernel_type_struct) | |
705 | return NULL; | |
706 | return container_of(type, const struct lttng_kernel_type_struct, parent); | |
707 | } | |
708 | ||
709 | static inline | |
710 | const struct lttng_kernel_type_variant *lttng_kernel_get_type_variant(const struct lttng_kernel_type_common *type) | |
711 | { | |
712 | if (type->type != lttng_kernel_type_variant) | |
713 | return NULL; | |
714 | return container_of(type, const struct lttng_kernel_type_variant, parent); | |
715 | } | |
716 | ||
717 | static inline bool lttng_kernel_type_is_bytewise_integer(const struct lttng_kernel_type_common *type) | |
718 | { | |
719 | const struct lttng_kernel_type_integer *type_integer = lttng_kernel_get_type_integer(type); | |
720 | ||
721 | if (!type_integer) | |
722 | return false; | |
723 | switch (type_integer->size) { | |
c190d76e MJ |
724 | case 8: |
725 | lttng_fallthrough; | |
726 | case 16: | |
727 | lttng_fallthrough; | |
728 | case 32: | |
729 | lttng_fallthrough; | |
437d5aa5 MD |
730 | case 64: |
731 | break; | |
732 | default: | |
733 | return false; | |
734 | } | |
735 | return true; | |
736 | } | |
737 | ||
8a445457 MD |
738 | int lttng_kernel_interpret_event_filter(const struct lttng_kernel_event_common *event, |
739 | const char *interpreter_stack_data, | |
a92e844e | 740 | struct lttng_kernel_probe_ctx *probe_ctx, |
8a445457 MD |
741 | void *event_filter_ctx); |
742 | ||
5e08a34f | 743 | static inline |
8d554755 | 744 | struct lttng_event_enabler_common *lttng_event_notifier_enabler_as_enabler( |
5e08a34f MD |
745 | struct lttng_event_notifier_enabler *event_notifier_enabler) |
746 | { | |
5b9817ae | 747 | return &event_notifier_enabler->parent; |
5e08a34f MD |
748 | } |
749 | ||
0def9170 | 750 | static inline |
e43b0d18 | 751 | struct lttng_event_ht *lttng_get_events_name_ht_from_enabler(struct lttng_event_enabler_common *event_enabler) |
0def9170 MD |
752 | { |
753 | switch (event_enabler->enabler_type) { | |
754 | case LTTNG_EVENT_ENABLER_TYPE_RECORDER: | |
48c210a7 MD |
755 | lttng_fallthrough; |
756 | case LTTNG_EVENT_ENABLER_TYPE_COUNTER: | |
0def9170 | 757 | { |
48c210a7 MD |
758 | struct lttng_event_enabler_session_common *event_enabler_session = |
759 | container_of(event_enabler, struct lttng_event_enabler_session_common, parent); | |
760 | return &event_enabler_session->chan->session->priv->events_name_ht; | |
0def9170 MD |
761 | } |
762 | case LTTNG_EVENT_ENABLER_TYPE_NOTIFIER: | |
763 | { | |
764 | struct lttng_event_notifier_enabler *event_notifier_enabler = | |
765 | container_of(event_enabler, struct lttng_event_notifier_enabler, parent); | |
f8d37df1 | 766 | return &event_notifier_enabler->group->events_name_ht; |
0def9170 MD |
767 | } |
768 | default: | |
769 | return NULL; | |
770 | } | |
771 | } | |
772 | ||
49b1a300 MD |
773 | static inline |
774 | struct lttng_event_ht *lttng_get_events_key_ht_from_enabler(struct lttng_event_enabler_common *event_enabler) | |
775 | { | |
776 | switch (event_enabler->enabler_type) { | |
777 | case LTTNG_EVENT_ENABLER_TYPE_RECORDER: | |
778 | lttng_fallthrough; | |
779 | case LTTNG_EVENT_ENABLER_TYPE_COUNTER: | |
780 | { | |
781 | struct lttng_event_enabler_session_common *event_enabler_session = | |
782 | container_of(event_enabler, struct lttng_event_enabler_session_common, parent); | |
783 | return &event_enabler_session->chan->session->priv->events_key_ht; | |
784 | } | |
785 | case LTTNG_EVENT_ENABLER_TYPE_NOTIFIER: | |
786 | lttng_fallthrough; | |
787 | default: | |
788 | return NULL; | |
789 | } | |
790 | } | |
791 | ||
546cb5f2 MD |
792 | static inline |
793 | struct list_head *lttng_get_event_list_head_from_enabler(struct lttng_event_enabler_common *event_enabler) | |
794 | { | |
795 | switch (event_enabler->enabler_type) { | |
796 | case LTTNG_EVENT_ENABLER_TYPE_RECORDER: | |
48c210a7 MD |
797 | lttng_fallthrough; |
798 | case LTTNG_EVENT_ENABLER_TYPE_COUNTER: | |
546cb5f2 | 799 | { |
48c210a7 MD |
800 | struct lttng_event_enabler_session_common *event_enabler_session = |
801 | container_of(event_enabler, struct lttng_event_enabler_session_common, parent); | |
802 | return &event_enabler_session->chan->session->priv->events_head; | |
546cb5f2 MD |
803 | } |
804 | case LTTNG_EVENT_ENABLER_TYPE_NOTIFIER: | |
805 | { | |
806 | struct lttng_event_notifier_enabler *event_notifier_enabler = | |
807 | container_of(event_enabler, struct lttng_event_notifier_enabler, parent); | |
808 | return &event_notifier_enabler->group->event_notifiers_head; | |
809 | } | |
810 | default: | |
811 | return NULL; | |
812 | } | |
813 | } | |
814 | ||
0fe45627 MD |
815 | int lttng_context_init(void); |
816 | void lttng_context_exit(void); | |
817 | int lttng_kernel_context_append(struct lttng_kernel_ctx **ctx_p, | |
818 | const struct lttng_kernel_ctx_field *f); | |
819 | void lttng_kernel_context_remove_last(struct lttng_kernel_ctx **ctx_p); | |
820 | struct lttng_kernel_ctx_field *lttng_kernel_get_context_field_from_index(struct lttng_kernel_ctx *ctx, | |
821 | size_t index); | |
822 | int lttng_kernel_find_context(struct lttng_kernel_ctx *ctx, const char *name); | |
823 | int lttng_kernel_get_context_index(struct lttng_kernel_ctx *ctx, const char *name); | |
824 | void lttng_kernel_destroy_context(struct lttng_kernel_ctx *ctx); | |
825 | int lttng_add_pid_to_ctx(struct lttng_kernel_ctx **ctx); | |
826 | int lttng_add_cpu_id_to_ctx(struct lttng_kernel_ctx **ctx); | |
827 | int lttng_add_procname_to_ctx(struct lttng_kernel_ctx **ctx); | |
828 | int lttng_add_prio_to_ctx(struct lttng_kernel_ctx **ctx); | |
829 | int lttng_add_nice_to_ctx(struct lttng_kernel_ctx **ctx); | |
830 | int lttng_add_vpid_to_ctx(struct lttng_kernel_ctx **ctx); | |
831 | int lttng_add_tid_to_ctx(struct lttng_kernel_ctx **ctx); | |
832 | int lttng_add_vtid_to_ctx(struct lttng_kernel_ctx **ctx); | |
833 | int lttng_add_ppid_to_ctx(struct lttng_kernel_ctx **ctx); | |
834 | int lttng_add_vppid_to_ctx(struct lttng_kernel_ctx **ctx); | |
835 | int lttng_add_hostname_to_ctx(struct lttng_kernel_ctx **ctx); | |
836 | int lttng_add_interruptible_to_ctx(struct lttng_kernel_ctx **ctx); | |
837 | int lttng_add_need_reschedule_to_ctx(struct lttng_kernel_ctx **ctx); | |
838 | #if defined(CONFIG_PREEMPT_RT_FULL) || defined(CONFIG_PREEMPT) | |
839 | int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx); | |
840 | #else | |
841 | static inline | |
842 | int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx) | |
843 | { | |
844 | return -ENOSYS; | |
845 | } | |
846 | #endif | |
847 | #ifdef CONFIG_PREEMPT_RT_FULL | |
848 | int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx); | |
849 | #else | |
850 | static inline | |
851 | int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx) | |
852 | { | |
853 | return -ENOSYS; | |
854 | } | |
855 | #endif | |
856 | ||
857 | int lttng_add_callstack_to_ctx(struct lttng_kernel_ctx **ctx, int type); | |
858 | ||
859 | #if defined(CONFIG_CGROUPS) && \ | |
860 | ((LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) || \ | |
861 | LTTNG_UBUNTU_KERNEL_RANGE(4,4,0,0, 4,5,0,0)) | |
862 | int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
863 | #else | |
864 | static inline | |
865 | int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
866 | { | |
867 | return -ENOSYS; | |
868 | } | |
869 | #endif | |
870 | ||
871 | #if defined(CONFIG_IPC_NS) && \ | |
872 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
873 | int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
874 | #else | |
875 | static inline | |
876 | int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
877 | { | |
878 | return -ENOSYS; | |
879 | } | |
880 | #endif | |
881 | ||
882 | #if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \ | |
883 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
884 | int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
885 | #else | |
886 | static inline | |
887 | int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
888 | { | |
889 | return -ENOSYS; | |
890 | } | |
891 | #endif | |
892 | ||
893 | #if defined(CONFIG_NET_NS) && \ | |
894 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
895 | int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
896 | #else | |
897 | static inline | |
898 | int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
899 | { | |
900 | return -ENOSYS; | |
901 | } | |
902 | #endif | |
903 | ||
904 | #if defined(CONFIG_PID_NS) && \ | |
905 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
906 | int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
907 | #else | |
908 | static inline | |
909 | int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
910 | { | |
911 | return -ENOSYS; | |
912 | } | |
913 | #endif | |
914 | ||
915 | #if defined(CONFIG_USER_NS) && \ | |
916 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
917 | int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
918 | #else | |
919 | static inline | |
920 | int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
921 | { | |
922 | return -ENOSYS; | |
923 | } | |
924 | #endif | |
925 | ||
926 | #if defined(CONFIG_UTS_NS) && \ | |
927 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) | |
928 | int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx); | |
929 | #else | |
930 | static inline | |
931 | int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
932 | { | |
933 | return -ENOSYS; | |
934 | } | |
935 | #endif | |
936 | ||
937 | #if defined(CONFIG_TIME_NS) && \ | |
fce87a6e MJ |
938 | (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0) || \ |
939 | LTTNG_RHEL_KERNEL_RANGE(4,18,0,305,0,0, 4,19,0,0,0,0)) | |
0fe45627 MD |
940 | int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx); |
941 | #else | |
942 | static inline | |
943 | int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx) | |
944 | { | |
945 | return -ENOSYS; | |
946 | } | |
947 | #endif | |
948 | ||
949 | int lttng_add_uid_to_ctx(struct lttng_kernel_ctx **ctx); | |
950 | int lttng_add_euid_to_ctx(struct lttng_kernel_ctx **ctx); | |
951 | int lttng_add_suid_to_ctx(struct lttng_kernel_ctx **ctx); | |
952 | int lttng_add_gid_to_ctx(struct lttng_kernel_ctx **ctx); | |
953 | int lttng_add_egid_to_ctx(struct lttng_kernel_ctx **ctx); | |
954 | int lttng_add_sgid_to_ctx(struct lttng_kernel_ctx **ctx); | |
955 | int lttng_add_vuid_to_ctx(struct lttng_kernel_ctx **ctx); | |
956 | int lttng_add_veuid_to_ctx(struct lttng_kernel_ctx **ctx); | |
957 | int lttng_add_vsuid_to_ctx(struct lttng_kernel_ctx **ctx); | |
958 | int lttng_add_vgid_to_ctx(struct lttng_kernel_ctx **ctx); | |
959 | int lttng_add_vegid_to_ctx(struct lttng_kernel_ctx **ctx); | |
960 | int lttng_add_vsgid_to_ctx(struct lttng_kernel_ctx **ctx); | |
961 | ||
962 | #if defined(CONFIG_PERF_EVENTS) | |
963 | int lttng_add_perf_counter_to_ctx(uint32_t type, | |
964 | uint64_t config, | |
965 | const char *name, | |
966 | struct lttng_kernel_ctx **ctx); | |
967 | int lttng_cpuhp_perf_counter_online(unsigned int cpu, | |
968 | struct lttng_cpuhp_node *node); | |
969 | int lttng_cpuhp_perf_counter_dead(unsigned int cpu, | |
970 | struct lttng_cpuhp_node *node); | |
971 | #else | |
972 | static inline | |
973 | int lttng_add_perf_counter_to_ctx(uint32_t type, | |
974 | uint64_t config, | |
975 | const char *name, | |
976 | struct lttng_kernel_ctx **ctx) | |
977 | { | |
978 | return -ENOSYS; | |
979 | } | |
980 | static inline | |
981 | int lttng_cpuhp_perf_counter_online(unsigned int cpu, | |
982 | struct lttng_cpuhp_node *node) | |
983 | { | |
984 | return 0; | |
985 | } | |
986 | static inline | |
987 | int lttng_cpuhp_perf_counter_dead(unsigned int cpu, | |
988 | struct lttng_cpuhp_node *node) | |
989 | { | |
990 | return 0; | |
991 | } | |
992 | #endif | |
993 | ||
1ae083ba | 994 | struct lttng_event_recorder_enabler *lttng_event_recorder_enabler_create( |
311e655a MD |
995 | enum lttng_enabler_format_type format_type, |
996 | struct lttng_kernel_abi_event *event_param, | |
f7d06400 | 997 | struct lttng_kernel_channel_buffer *chan); |
def1e304 | 998 | void lttng_event_enabler_session_add(struct lttng_kernel_session *session, |
6ef1e2f5 | 999 | struct lttng_event_enabler_session_common *event_enabler); |
7b25ab0e | 1000 | |
311e655a | 1001 | struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create( |
311e655a | 1002 | enum lttng_enabler_format_type format_type, |
1bbb5b2d MD |
1003 | struct lttng_kernel_abi_event_notifier *event_notifier_param, |
1004 | struct lttng_event_notifier_group *event_notifier_group); | |
1005 | void lttng_event_notifier_enabler_group_add(struct lttng_event_notifier_group *event_notifier_group, | |
1006 | struct lttng_event_notifier_enabler *event_notifier_enabler); | |
311e655a MD |
1007 | int lttng_event_notifier_enabler_attach_capture_bytecode( |
1008 | struct lttng_event_notifier_enabler *event_notifier_enabler, | |
1009 | struct lttng_kernel_abi_capture_bytecode __user *bytecode); | |
1010 | ||
44b1abdc MD |
1011 | int lttng_event_enabler_enable(struct lttng_event_enabler_common *event_enabler); |
1012 | int lttng_event_enabler_disable(struct lttng_event_enabler_common *event_enabler); | |
1013 | int lttng_event_enabler_attach_filter_bytecode(struct lttng_event_enabler_common *event_enabler, | |
1014 | struct lttng_kernel_abi_filter_bytecode __user *bytecode); | |
1015 | void lttng_event_enabler_destroy(struct lttng_event_enabler_common *event_enabler); | |
1016 | ||
8bff0fc3 | 1017 | bool lttng_desc_match_enabler(const struct lttng_kernel_event_desc *desc, |
8d554755 | 1018 | struct lttng_event_enabler_common *enabler); |
adfdce76 MD |
1019 | bool lttng_event_enabler_match_event(struct lttng_event_enabler_common *event_enabler, |
1020 | struct lttng_kernel_event_common *event); | |
311e655a MD |
1021 | |
1022 | void lttng_enabler_link_bytecode(const struct lttng_kernel_event_desc *event_desc, | |
1023 | struct lttng_kernel_ctx *ctx, | |
1024 | struct list_head *instance_bytecode_runtime_head, | |
1025 | struct list_head *enabler_bytecode_runtime_head); | |
1026 | ||
1027 | #if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS) | |
b2f63bde | 1028 | int lttng_event_enabler_create_syscall_events_if_missing(struct lttng_event_enabler_common *event_enabler); |
9b2f1c54 MD |
1029 | int lttng_syscall_filter_enable_event(struct lttng_kernel_event_common *event); |
1030 | int lttng_syscall_filter_disable_event(struct lttng_kernel_event_common *event); | |
311e655a | 1031 | |
6053e75e MD |
1032 | int lttng_syscalls_unregister_syscall_table(struct lttng_kernel_syscall_table *syscall_table); |
1033 | int lttng_syscalls_destroy_syscall_table(struct lttng_kernel_syscall_table *syscall_table); | |
1034 | ||
c970b655 | 1035 | long lttng_syscall_table_get_active_mask(struct lttng_kernel_syscall_table *syscall_table, |
311e655a | 1036 | struct lttng_kernel_abi_syscall_mask __user *usyscall_mask); |
9cb5be7e MD |
1037 | |
1038 | void lttng_syscall_table_set_wildcard_all(struct lttng_event_enabler_common *event_enabler); | |
311e655a | 1039 | #else |
b2f63bde | 1040 | static inline int lttng_event_enabler_create_syscall_events_if_missing(struct lttng_event_enabler_common *event_enabler) |
311e655a MD |
1041 | { |
1042 | return -ENOSYS; | |
1043 | } | |
1044 | ||
9b2f1c54 | 1045 | static inline int lttng_syscall_filter_enable_event(struct lttng_kernel_event_common *event) |
311e655a | 1046 | { |
6053e75e | 1047 | return -ENOSYS; |
311e655a MD |
1048 | } |
1049 | ||
9b2f1c54 | 1050 | static inline int lttng_syscall_filter_disable_event(struct lttng_kernel_event_common *event) |
311e655a | 1051 | { |
6053e75e | 1052 | return -ENOSYS; |
311e655a MD |
1053 | } |
1054 | ||
6053e75e | 1055 | static inline int lttng_syscalls_unregister_syscall_table(struct lttng_kernel_syscall_table *syscall_table) |
311e655a | 1056 | { |
6053e75e | 1057 | return 0; |
311e655a MD |
1058 | } |
1059 | ||
6053e75e | 1060 | static inline int lttng_syscalls_destroy_syscall_table(struct lttng_kernel_syscall_table *syscall_table) |
311e655a | 1061 | { |
6053e75e | 1062 | return 0; |
311e655a MD |
1063 | } |
1064 | ||
c970b655 MD |
1065 | static inline long lttng_syscall_table_get_active_mask(struct lttng_kernel_syscall_table *syscall_table, |
1066 | struct lttng_kernel_abi_syscall_mask __user *usyscall_mask) | |
311e655a MD |
1067 | { |
1068 | return -ENOSYS; | |
1069 | } | |
1070 | ||
6053e75e | 1071 | static inline int lttng_syscalls_create_matching_event_notifiers(struct lttng_event_notifier_enabler *event_notifier_enabler) |
311e655a | 1072 | { |
6053e75e | 1073 | return -ENOSYS; |
311e655a MD |
1074 | } |
1075 | ||
9cb5be7e MD |
1076 | static inline void lttng_syscall_table_set_wildcard_all(struct lttng_event_enabler_common *event_enabler) |
1077 | { | |
1078 | } | |
311e655a | 1079 | #endif |
0fe45627 | 1080 | |
e4a26d6b | 1081 | #ifdef CONFIG_KPROBES |
fd0402f3 | 1082 | int lttng_kprobes_init_event(const char *name, |
e4a26d6b MD |
1083 | const char *symbol_name, |
1084 | uint64_t offset, | |
1085 | uint64_t addr, | |
6a35e5bd | 1086 | struct lttng_kernel_event_common *event); |
fd0402f3 | 1087 | int lttng_kprobes_register_event(struct lttng_kernel_event_common *event); |
6a35e5bd MD |
1088 | void lttng_kprobes_unregister_event(struct lttng_kernel_event_common *event); |
1089 | void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_common *event); | |
5f9ae1f4 MD |
1090 | int lttng_kprobes_match_check(const char *symbol_name, uint64_t offset, uint64_t addr); |
1091 | ||
e4a26d6b MD |
1092 | #else |
1093 | static inline | |
fd0402f3 | 1094 | int lttng_kprobes_init_event(const char *name, |
e4a26d6b MD |
1095 | const char *symbol_name, |
1096 | uint64_t offset, | |
1097 | uint64_t addr, | |
6a35e5bd | 1098 | struct lttng_kernel_event_common *event) |
e4a26d6b MD |
1099 | { |
1100 | return -ENOSYS; | |
1101 | } | |
fd0402f3 MD |
1102 | static inline |
1103 | int lttng_kprobes_register_event(struct lttng_kernel_event_common *event) | |
1104 | { | |
1105 | return -ENOSYS; | |
1106 | } | |
e4a26d6b MD |
1107 | |
1108 | static inline | |
6a35e5bd | 1109 | void lttng_kprobes_unregister_event(struct lttng_kernel_event_common *event) |
e4a26d6b MD |
1110 | { |
1111 | } | |
1112 | ||
1113 | static inline | |
6a35e5bd | 1114 | void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_common *event) |
e4a26d6b MD |
1115 | { |
1116 | } | |
5f9ae1f4 MD |
1117 | static inline |
1118 | int lttng_kprobes_match_check(const char *symbol_name, uint64_t offset, uint64_t addr) | |
1119 | { | |
1120 | return -ENOENT; | |
1121 | } | |
e4a26d6b MD |
1122 | #endif |
1123 | ||
1124 | int lttng_event_add_callsite(struct lttng_kernel_event_common *event, | |
1125 | struct lttng_kernel_abi_event_callsite __user *callsite); | |
1126 | ||
1127 | #ifdef CONFIG_UPROBES | |
1128 | int lttng_uprobes_register_event(const char *name, | |
17806c46 | 1129 | int fd, struct lttng_kernel_event_common *event); |
e4a26d6b MD |
1130 | int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event, |
1131 | struct lttng_kernel_abi_event_callsite __user *callsite); | |
17806c46 MD |
1132 | void lttng_uprobes_unregister_event(struct lttng_kernel_event_common *event); |
1133 | void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_common *event); | |
e4a26d6b MD |
1134 | #else |
1135 | static inline | |
1136 | int lttng_uprobes_register_event(const char *name, | |
17806c46 | 1137 | int fd, struct lttng_kernel_event_common *event) |
e4a26d6b MD |
1138 | { |
1139 | return -ENOSYS; | |
1140 | } | |
1141 | ||
1142 | static inline | |
1143 | int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event, | |
1144 | struct lttng_kernel_abi_event_callsite __user *callsite) | |
1145 | { | |
1146 | return -ENOSYS; | |
1147 | } | |
1148 | ||
1149 | static inline | |
17806c46 | 1150 | void lttng_uprobes_unregister_event(struct lttng_kernel_event_common *event) |
e4a26d6b MD |
1151 | { |
1152 | } | |
1153 | ||
1154 | static inline | |
17806c46 | 1155 | void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_common *event) |
e4a26d6b MD |
1156 | { |
1157 | } | |
1158 | #endif | |
1159 | ||
1160 | #ifdef CONFIG_KRETPROBES | |
99414eaf MD |
1161 | struct lttng_krp *lttng_kretprobes_create_krp(const char *symbol_name, |
1162 | uint64_t offset, uint64_t addr); | |
1163 | void lttng_kretprobes_put_krp(struct lttng_krp *krp); | |
1164 | int lttng_kretprobes_init_event(const char *name, | |
1165 | enum lttng_kretprobe_entryexit entryexit, | |
1166 | struct lttng_kernel_event_common *event, | |
1167 | struct lttng_krp *krp); | |
1168 | int lttng_kretprobes_register_event(struct lttng_kernel_event_common *event); | |
1169 | void lttng_kretprobes_unregister_event(struct lttng_kernel_event_common *event); | |
1170 | void lttng_kretprobes_destroy_event_private(struct lttng_kernel_event_common *event); | |
9d231073 | 1171 | int lttng_kretprobes_match_check(const char *symbol_name, uint64_t offset, uint64_t addr); |
e4a26d6b MD |
1172 | #else |
1173 | static inline | |
99414eaf MD |
1174 | struct lttng_krp *lttng_kretprobes_create_krp(const char *symbol_name, |
1175 | uint64_t offset, uint64_t addr) | |
44d1600b MD |
1176 | { |
1177 | return NULL; | |
1178 | } | |
9c137388 MJ |
1179 | |
1180 | static inline | |
1181 | void lttng_kretprobes_put_krp(struct lttng_krp *krp) | |
1182 | { | |
1183 | } | |
1184 | ||
44d1600b | 1185 | static inline |
99414eaf MD |
1186 | int lttng_kretprobes_init_event(const char *name, |
1187 | enum lttng_kretprobe_entryexit entryexit, | |
1188 | struct lttng_kernel_event_common *event, | |
1189 | struct lttng_krp *krp) | |
e4a26d6b MD |
1190 | { |
1191 | return -ENOSYS; | |
1192 | } | |
9c137388 | 1193 | |
e4a26d6b | 1194 | static inline |
99414eaf | 1195 | int lttng_kretprobes_register_event(struct lttng_kernel_event_common *event) |
e4a26d6b | 1196 | { |
99414eaf | 1197 | return -ENOSYS; |
e4a26d6b | 1198 | } |
9c137388 | 1199 | |
e4a26d6b | 1200 | static inline |
9c137388 MJ |
1201 | void lttng_kretprobes_unregister_event(struct lttng_kernel_event_common *event) |
1202 | { | |
1203 | } | |
1204 | ||
99414eaf | 1205 | static inline |
9c137388 MJ |
1206 | void lttng_kretprobes_destroy_event_private(struct lttng_kernel_event_common *event) |
1207 | { | |
1208 | } | |
1209 | ||
99414eaf MD |
1210 | static inline |
1211 | int lttng_kretprobes_match_check(const char *symbol_name, uint64_t offset, uint64_t addr) | |
e4a26d6b | 1212 | { |
99414eaf | 1213 | return -ENOENT; |
e4a26d6b MD |
1214 | } |
1215 | ||
1216 | static inline | |
99414eaf | 1217 | struct lttng_kernel_event_desc *lttng_create_kretprobes_event_desc(const char *name) |
e4a26d6b | 1218 | { |
99414eaf | 1219 | return NULL; |
e4a26d6b | 1220 | } |
9c137388 | 1221 | |
9d231073 | 1222 | static inline |
99414eaf MD |
1223 | int lttng_kretprobes_register(const char *symbol_name, |
1224 | uint64_t offset, | |
1225 | uint64_t addr, | |
1226 | struct lttng_kernel_event_common *event_entry, | |
1227 | struct lttng_kernel_event_common *event_exit) | |
9d231073 | 1228 | { |
99414eaf | 1229 | return -ENOSYS; |
9d231073 | 1230 | } |
e4a26d6b MD |
1231 | #endif |
1232 | ||
e8c0bbd3 MD |
1233 | void lttng_lock_sessions(void); |
1234 | void lttng_unlock_sessions(void); | |
1235 | ||
1236 | struct list_head *lttng_get_probe_list_head(void); | |
1237 | ||
1238 | int lttng_fix_pending_events(void); | |
1239 | int lttng_fix_pending_event_notifiers(void); | |
1240 | int lttng_session_active(void); | |
1241 | bool lttng_event_notifier_active(void); | |
1242 | ||
8cdc1a81 MD |
1243 | struct lttng_kernel_session *lttng_session_create(void); |
1244 | int lttng_session_enable(struct lttng_kernel_session *session); | |
1245 | int lttng_session_disable(struct lttng_kernel_session *session); | |
1246 | void lttng_session_destroy(struct lttng_kernel_session *session); | |
1247 | int lttng_session_metadata_regenerate(struct lttng_kernel_session *session); | |
1248 | int lttng_session_statedump(struct lttng_kernel_session *session); | |
e8c0bbd3 MD |
1249 | void metadata_cache_destroy(struct kref *kref); |
1250 | ||
76ba9cee MD |
1251 | struct lttng_kernel_channel_counter *lttng_kernel_counter_create( |
1252 | const char *counter_transport_name, | |
1253 | size_t number_dimensions, | |
81ab5b77 | 1254 | const struct lttng_kernel_counter_dimension *dimensions, |
76ba9cee MD |
1255 | int64_t global_sum_step, |
1256 | bool coalesce_hits); | |
1257 | int lttng_kernel_counter_read(struct lttng_kernel_channel_counter *counter, | |
e8c0bbd3 MD |
1258 | const size_t *dimension_indexes, int32_t cpu, |
1259 | int64_t *val, bool *overflow, bool *underflow); | |
76ba9cee | 1260 | int lttng_kernel_counter_aggregate(struct lttng_kernel_channel_counter *counter, |
e8c0bbd3 MD |
1261 | const size_t *dimension_indexes, int64_t *val, |
1262 | bool *overflow, bool *underflow); | |
76ba9cee | 1263 | int lttng_kernel_counter_clear(struct lttng_kernel_channel_counter *counter, |
e8c0bbd3 | 1264 | const size_t *dimension_indexes); |
dc1f2f73 MD |
1265 | int lttng_kernel_counter_get_nr_dimensions(struct lttng_kernel_channel_counter *counter, |
1266 | size_t *nr_dimensions); | |
1267 | int lttng_kernel_counter_get_max_nr_elem(struct lttng_kernel_channel_counter *counter, | |
1268 | size_t *max_nr_elem); | |
e8c0bbd3 | 1269 | struct lttng_event_notifier_group *lttng_event_notifier_group_create(void); |
e8c0bbd3 MD |
1270 | void lttng_event_notifier_group_destroy( |
1271 | struct lttng_event_notifier_group *event_notifier_group); | |
1272 | ||
4e252d1e | 1273 | struct lttng_kernel_channel_buffer *lttng_channel_buffer_create(struct lttng_kernel_session *session, |
e8c0bbd3 MD |
1274 | const char *transport_name, |
1275 | void *buf_addr, | |
1276 | size_t subbuf_size, size_t num_subbuf, | |
1277 | unsigned int switch_timer_interval, | |
1278 | unsigned int read_timer_interval, | |
1279 | enum channel_type channel_type); | |
f7d06400 | 1280 | struct lttng_kernel_channel_buffer *lttng_global_channel_create(struct lttng_kernel_session *session, |
e8c0bbd3 MD |
1281 | int overwrite, void *buf_addr, |
1282 | size_t subbuf_size, size_t num_subbuf, | |
1283 | unsigned int switch_timer_interval, | |
1284 | unsigned int read_timer_interval); | |
1285 | ||
2ff86ce2 | 1286 | void lttng_metadata_channel_buffer_destroy(struct lttng_kernel_channel_buffer *chan); |
83006ee0 | 1287 | struct lttng_kernel_event_common *_lttng_kernel_event_create(struct lttng_event_enabler_common *event_enabler, |
44d1600b MD |
1288 | const struct lttng_kernel_event_desc *event_desc, |
1289 | struct lttng_kernel_event_pair *event_pair); | |
83006ee0 | 1290 | struct lttng_kernel_event_common *lttng_kernel_event_create(struct lttng_event_enabler_common *event_enabler, |
44d1600b MD |
1291 | const struct lttng_kernel_event_desc *event_desc, |
1292 | struct lttng_kernel_event_pair *event_pair); | |
e8c0bbd3 | 1293 | |
6b757027 MD |
1294 | int lttng_channel_enable(struct lttng_kernel_channel_common *channel); |
1295 | int lttng_channel_disable(struct lttng_kernel_channel_common *channel); | |
e8c0bbd3 MD |
1296 | int lttng_event_enable(struct lttng_kernel_event_common *event); |
1297 | int lttng_event_disable(struct lttng_kernel_event_common *event); | |
1298 | ||
1299 | void lttng_transport_register(struct lttng_transport *transport); | |
1300 | void lttng_transport_unregister(struct lttng_transport *transport); | |
1301 | ||
1302 | void lttng_counter_transport_register(struct lttng_counter_transport *transport); | |
1303 | void lttng_counter_transport_unregister(struct lttng_counter_transport *transport); | |
1304 | ||
1305 | void synchronize_trace(void); | |
1306 | int lttng_abi_init(void); | |
1307 | int lttng_abi_compat_old_init(void); | |
1308 | void lttng_abi_exit(void); | |
1309 | void lttng_abi_compat_old_exit(void); | |
1310 | ||
1311 | const struct lttng_kernel_event_desc *lttng_event_desc_get(const char *name); | |
1312 | void lttng_event_desc_put(const struct lttng_kernel_event_desc *desc); | |
1313 | int lttng_probes_init(void); | |
1314 | void lttng_probes_exit(void); | |
1315 | ||
1316 | int lttng_metadata_output_channel(struct lttng_metadata_stream *stream, | |
860c213b | 1317 | struct lttng_kernel_ring_buffer_channel *chan, bool *coherent); |
e8c0bbd3 MD |
1318 | |
1319 | int lttng_id_tracker_get_node_id(const struct lttng_id_hash_node *node); | |
8c0393c3 MD |
1320 | int lttng_id_tracker_empty_set(struct lttng_kernel_id_tracker *lf); |
1321 | int lttng_id_tracker_init(struct lttng_kernel_id_tracker *lf, | |
1322 | struct lttng_kernel_session *session, | |
1323 | enum tracker_type type); | |
1324 | void lttng_id_tracker_fini(struct lttng_kernel_id_tracker *lf); | |
1325 | void lttng_id_tracker_destroy(struct lttng_kernel_id_tracker *lf, bool rcu); | |
1326 | int lttng_id_tracker_add(struct lttng_kernel_id_tracker *lf, int id); | |
1327 | int lttng_id_tracker_del(struct lttng_kernel_id_tracker *lf, int id); | |
e8c0bbd3 | 1328 | |
8cdc1a81 | 1329 | int lttng_session_track_id(struct lttng_kernel_session *session, |
e8c0bbd3 | 1330 | enum tracker_type tracker_type, int id); |
8cdc1a81 | 1331 | int lttng_session_untrack_id(struct lttng_kernel_session *session, |
e8c0bbd3 MD |
1332 | enum tracker_type tracker_type, int id); |
1333 | ||
8cdc1a81 | 1334 | int lttng_session_list_tracker_ids(struct lttng_kernel_session *session, |
e8c0bbd3 MD |
1335 | enum tracker_type tracker_type); |
1336 | ||
1337 | void lttng_clock_ref(void); | |
1338 | void lttng_clock_unref(void); | |
1339 | ||
1340 | void lttng_free_event_filter_runtime(struct lttng_kernel_event_common *event); | |
1341 | ||
1342 | int lttng_probes_init(void); | |
1343 | ||
1344 | int lttng_logger_init(void); | |
1345 | void lttng_logger_exit(void); | |
1346 | ||
8cdc1a81 | 1347 | extern int lttng_statedump_start(struct lttng_kernel_session *session); |
e8c0bbd3 MD |
1348 | |
1349 | int lttng_calibrate(struct lttng_kernel_abi_calibrate *calibrate); | |
1350 | ||
1351 | extern const struct file_operations lttng_tracepoint_list_fops; | |
1352 | extern const struct file_operations lttng_syscall_list_fops; | |
1353 | ||
76ba9cee MD |
1354 | struct lttng_kernel_channel_buffer *lttng_kernel_alloc_channel_buffer(void); |
1355 | struct lttng_kernel_channel_counter *lttng_kernel_alloc_channel_counter(void); | |
1356 | void lttng_kernel_free_channel_common(struct lttng_kernel_channel_common *chan); | |
1357 | ||
d9f47662 MD |
1358 | int format_event_key(struct lttng_event_enabler_common *event_enabler, char *key_string, |
1359 | const char *event_name); | |
1360 | bool lttng_event_enabler_event_name_key_match_event(struct lttng_event_enabler_common *event_enabler, | |
1361 | const char *event_name, const char *key_string, struct lttng_kernel_event_common *event); | |
6ef1e2f5 MD |
1362 | struct lttng_event_counter_enabler *lttng_event_counter_enabler_create( |
1363 | enum lttng_enabler_format_type format_type, | |
1364 | struct lttng_kernel_abi_event *event_param, | |
7b0f1e69 | 1365 | struct lttng_kernel_counter_key *counter_key, |
6ef1e2f5 | 1366 | struct lttng_kernel_channel_counter *chan); |
d9f47662 | 1367 | |
7b0f1e69 MD |
1368 | int create_counter_key_from_kernel(struct lttng_kernel_counter_key **counter_key, |
1369 | const struct lttng_kernel_counter_key *key); | |
1370 | void destroy_counter_key(struct lttng_kernel_counter_key *counter_key); | |
1371 | ||
0fe45627 MD |
1372 | #define lttng_kernel_static_ctx_field(_event_field, _get_size, _record, _get_value, _destroy, _priv) \ |
1373 | __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_ctx_field, { \ | |
1374 | .event_field = (_event_field), \ | |
1375 | .get_size = (_get_size), \ | |
1376 | .record = (_record), \ | |
1377 | .get_value = (_get_value), \ | |
1378 | .destroy = (_destroy), \ | |
1379 | .priv = (_priv), \ | |
1380 | }) | |
1381 | ||
92bc1e23 | 1382 | #endif /* _LTTNG_EVENTS_INTERNAL_H */ |