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36c52fff MJ |
1 | /* |
2 | * SPDX-License-Identifier: MIT | |
3 | * | |
4 | * Copyright 2019 (c) Francis Deslauriers <francis.deslauriers@efficios.com> | |
5 | */ | |
6 | ||
7 | #ifndef _LTTNG_UST_EVENTS_INTERNAL_H | |
8 | #define _LTTNG_UST_EVENTS_INTERNAL_H | |
9 | ||
10 | #include "common/events.h" | |
11 | ||
12 | /* | |
13 | * Allocate and initialize a `struct lttng_event_enabler` object. | |
14 | * | |
15 | * On success, returns a `struct lttng_event_enabler`, | |
16 | * On memory error, returns NULL. | |
17 | */ | |
18 | struct lttng_event_enabler *lttng_event_enabler_create( | |
19 | enum lttng_enabler_format_type format_type, | |
20 | struct lttng_ust_abi_event *event_param, | |
21 | struct lttng_ust_channel_buffer *chan) | |
22 | __attribute__((visibility("hidden"))); | |
23 | ||
24 | /* | |
25 | * Destroy a `struct lttng_event_enabler` object. | |
26 | */ | |
27 | void lttng_event_enabler_destroy(struct lttng_event_enabler *enabler) | |
28 | __attribute__((visibility("hidden"))); | |
29 | ||
30 | /* | |
31 | * Enable a `struct lttng_event_enabler` object and all events related to this | |
32 | * enabler. | |
33 | */ | |
34 | int lttng_event_enabler_enable(struct lttng_event_enabler *enabler) | |
35 | __attribute__((visibility("hidden"))); | |
36 | ||
37 | /* | |
38 | * Disable a `struct lttng_event_enabler` object and all events related to this | |
39 | * enabler. | |
40 | */ | |
41 | int lttng_event_enabler_disable(struct lttng_event_enabler *enabler) | |
42 | __attribute__((visibility("hidden"))); | |
43 | ||
44 | /* | |
45 | * Attach filter bytecode program to `struct lttng_event_enabler` and all | |
46 | * events related to this enabler. | |
47 | */ | |
48 | int lttng_event_enabler_attach_filter_bytecode( | |
49 | struct lttng_event_enabler *enabler, | |
50 | struct lttng_ust_bytecode_node **bytecode) | |
51 | __attribute__((visibility("hidden"))); | |
52 | ||
53 | /* | |
54 | * Attach an application context to an event enabler. | |
55 | * | |
56 | * Not implemented. | |
57 | */ | |
58 | int lttng_event_enabler_attach_context(struct lttng_event_enabler *enabler, | |
59 | struct lttng_ust_abi_context *ctx) | |
60 | __attribute__((visibility("hidden"))); | |
61 | ||
62 | /* | |
63 | * Attach exclusion list to `struct lttng_event_enabler` and all | |
64 | * events related to this enabler. | |
65 | */ | |
66 | int lttng_event_enabler_attach_exclusion(struct lttng_event_enabler *enabler, | |
67 | struct lttng_ust_excluder_node **excluder) | |
68 | __attribute__((visibility("hidden"))); | |
69 | ||
70 | /* | |
71 | * Synchronize bytecodes for the enabler and the instance (event or | |
72 | * event_notifier). | |
73 | * | |
74 | * This function goes over all bytecode programs of the enabler (event or | |
75 | * event_notifier enabler) to ensure each is linked to the provided instance. | |
76 | */ | |
77 | void lttng_enabler_link_bytecode(const struct lttng_ust_event_desc *event_desc, | |
78 | struct lttng_ust_ctx **ctx, | |
79 | struct cds_list_head *instance_bytecode_runtime_head, | |
80 | struct cds_list_head *enabler_bytecode_runtime_head) | |
81 | __attribute__((visibility("hidden"))); | |
82 | ||
83 | /* | |
84 | * Allocate and initialize a `struct lttng_event_notifier_group` object. | |
85 | * | |
86 | * On success, returns a `struct lttng_triggre_group`, | |
87 | * on memory error, returns NULL. | |
88 | */ | |
89 | struct lttng_event_notifier_group *lttng_event_notifier_group_create(void) | |
90 | __attribute__((visibility("hidden"))); | |
91 | ||
92 | /* | |
93 | * Destroy a `struct lttng_event_notifier_group` object. | |
94 | */ | |
95 | void lttng_event_notifier_group_destroy( | |
96 | struct lttng_event_notifier_group *event_notifier_group) | |
97 | __attribute__((visibility("hidden"))); | |
98 | ||
99 | /* | |
100 | * Allocate and initialize a `struct lttng_event_notifier_enabler` object. | |
101 | * | |
102 | * On success, returns a `struct lttng_event_notifier_enabler`, | |
103 | * On memory error, returns NULL. | |
104 | */ | |
105 | struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create( | |
106 | struct lttng_event_notifier_group *event_notifier_group, | |
107 | enum lttng_enabler_format_type format_type, | |
108 | struct lttng_ust_abi_event_notifier *event_notifier_param) | |
109 | __attribute__((visibility("hidden"))); | |
110 | ||
111 | /* | |
112 | * Destroy a `struct lttng_event_notifier_enabler` object. | |
113 | */ | |
114 | void lttng_event_notifier_enabler_destroy( | |
115 | struct lttng_event_notifier_enabler *event_notifier_enabler) | |
116 | __attribute__((visibility("hidden"))); | |
117 | ||
118 | /* | |
119 | * Enable a `struct lttng_event_notifier_enabler` object and all event | |
120 | * notifiers related to this enabler. | |
121 | */ | |
122 | int lttng_event_notifier_enabler_enable( | |
123 | struct lttng_event_notifier_enabler *event_notifier_enabler) | |
124 | __attribute__((visibility("hidden"))); | |
125 | ||
126 | /* | |
127 | * Disable a `struct lttng_event_notifier_enabler` object and all event | |
128 | * notifiers related to this enabler. | |
129 | */ | |
130 | int lttng_event_notifier_enabler_disable( | |
131 | struct lttng_event_notifier_enabler *event_notifier_enabler) | |
132 | __attribute__((visibility("hidden"))); | |
133 | ||
134 | /* | |
135 | * Attach filter bytecode program to `struct lttng_event_notifier_enabler` and | |
136 | * all event notifiers related to this enabler. | |
137 | */ | |
138 | int lttng_event_notifier_enabler_attach_filter_bytecode( | |
139 | struct lttng_event_notifier_enabler *event_notifier_enabler, | |
140 | struct lttng_ust_bytecode_node **bytecode) | |
141 | __attribute__((visibility("hidden"))); | |
142 | ||
143 | /* | |
144 | * Attach capture bytecode program to `struct lttng_event_notifier_enabler` and | |
145 | * all event_notifiers related to this enabler. | |
146 | */ | |
147 | int lttng_event_notifier_enabler_attach_capture_bytecode( | |
148 | struct lttng_event_notifier_enabler *event_notifier_enabler, | |
149 | struct lttng_ust_bytecode_node **bytecode) | |
150 | __attribute__((visibility("hidden"))); | |
151 | ||
152 | /* | |
153 | * Attach exclusion list to `struct lttng_event_notifier_enabler` and all | |
154 | * event notifiers related to this enabler. | |
155 | */ | |
156 | int lttng_event_notifier_enabler_attach_exclusion( | |
157 | struct lttng_event_notifier_enabler *event_notifier_enabler, | |
158 | struct lttng_ust_excluder_node **excluder) | |
159 | __attribute__((visibility("hidden"))); | |
160 | ||
161 | void lttng_free_event_filter_runtime(struct lttng_ust_event_common *event) | |
162 | __attribute__((visibility("hidden"))); | |
163 | ||
164 | /* | |
165 | * Connect the probe on all enablers matching this event description. | |
166 | * Called on library load. | |
167 | */ | |
168 | int lttng_fix_pending_event_notifiers(void) | |
169 | __attribute__((visibility("hidden"))); | |
170 | ||
171 | struct lttng_counter *lttng_ust_counter_create( | |
172 | const char *counter_transport_name, | |
173 | size_t number_dimensions, const struct lttng_counter_dimension *dimensions) | |
174 | __attribute__((visibility("hidden"))); | |
175 | ||
176 | #ifdef HAVE_LINUX_PERF_EVENT_H | |
177 | ||
178 | int lttng_add_perf_counter_to_ctx(uint32_t type, | |
179 | uint64_t config, | |
180 | const char *name, | |
181 | struct lttng_ust_ctx **ctx) | |
182 | __attribute__((visibility("hidden"))); | |
183 | ||
184 | int lttng_perf_counter_init(void) | |
185 | __attribute__((visibility("hidden"))); | |
186 | ||
187 | void lttng_perf_counter_exit(void) | |
188 | __attribute__((visibility("hidden"))); | |
189 | ||
190 | #else /* #ifdef HAVE_LINUX_PERF_EVENT_H */ | |
191 | ||
192 | static inline | |
e2a195a6 MJ |
193 | int lttng_add_perf_counter_to_ctx(uint32_t type __attribute__((unused)), |
194 | uint64_t config __attribute__((unused)), | |
195 | const char *name __attribute__((unused)), | |
196 | struct lttng_ust_ctx **ctx __attribute__((unused))) | |
36c52fff MJ |
197 | { |
198 | return -ENOSYS; | |
199 | } | |
200 | static inline | |
201 | int lttng_perf_counter_init(void) | |
202 | { | |
203 | return 0; | |
204 | } | |
205 | static inline | |
206 | void lttng_perf_counter_exit(void) | |
207 | { | |
208 | } | |
209 | #endif /* #else #ifdef HAVE_LINUX_PERF_EVENT_H */ | |
210 | ||
211 | int lttng_probes_get_event_list(struct lttng_ust_tracepoint_list *list) | |
212 | __attribute__((visibility("hidden"))); | |
213 | ||
214 | void lttng_probes_prune_event_list(struct lttng_ust_tracepoint_list *list) | |
215 | __attribute__((visibility("hidden"))); | |
216 | ||
217 | int lttng_probes_get_field_list(struct lttng_ust_field_list *list) | |
218 | __attribute__((visibility("hidden"))); | |
219 | ||
220 | void lttng_probes_prune_field_list(struct lttng_ust_field_list *list) | |
221 | __attribute__((visibility("hidden"))); | |
222 | ||
223 | struct lttng_ust_abi_tracepoint_iter * | |
224 | lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list) | |
225 | __attribute__((visibility("hidden"))); | |
226 | ||
227 | struct lttng_ust_abi_field_iter * | |
228 | lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list) | |
229 | __attribute__((visibility("hidden"))); | |
230 | ||
231 | struct lttng_ust_session *lttng_session_create(void) | |
232 | __attribute__((visibility("hidden"))); | |
233 | ||
234 | int lttng_session_enable(struct lttng_ust_session *session) | |
235 | __attribute__((visibility("hidden"))); | |
236 | ||
237 | int lttng_session_disable(struct lttng_ust_session *session) | |
238 | __attribute__((visibility("hidden"))); | |
239 | ||
240 | int lttng_session_statedump(struct lttng_ust_session *session) | |
241 | __attribute__((visibility("hidden"))); | |
242 | ||
243 | void lttng_session_destroy(struct lttng_ust_session *session) | |
244 | __attribute__((visibility("hidden"))); | |
245 | ||
246 | /* | |
247 | * Called with ust lock held. | |
248 | */ | |
249 | int lttng_session_active(void) | |
250 | __attribute__((visibility("hidden"))); | |
251 | ||
252 | struct cds_list_head *lttng_get_sessions(void) | |
253 | __attribute__((visibility("hidden"))); | |
254 | ||
255 | void lttng_handle_pending_statedump(void *owner) | |
256 | __attribute__((visibility("hidden"))); | |
257 | ||
258 | int lttng_channel_enable(struct lttng_ust_channel_common *lttng_channel) | |
259 | __attribute__((visibility("hidden"))); | |
260 | ||
261 | int lttng_channel_disable(struct lttng_ust_channel_common *lttng_channel) | |
262 | __attribute__((visibility("hidden"))); | |
263 | ||
36c52fff MJ |
264 | void lttng_probe_provider_unregister_events(const struct lttng_ust_probe_desc *desc) |
265 | __attribute__((visibility("hidden"))); | |
266 | ||
267 | int lttng_fix_pending_events(void) | |
268 | __attribute__((visibility("hidden"))); | |
269 | ||
270 | struct cds_list_head *lttng_get_probe_list_head(void) | |
271 | __attribute__((visibility("hidden"))); | |
272 | ||
273 | int lttng_abi_create_root_handle(void) | |
274 | __attribute__((visibility("hidden"))); | |
275 | ||
276 | const struct lttng_ust_abi_objd_ops *lttng_ust_abi_objd_ops(int id) | |
277 | __attribute__((visibility("hidden"))); | |
278 | ||
279 | int lttng_ust_abi_objd_unref(int id, int is_owner) | |
280 | __attribute__((visibility("hidden"))); | |
281 | ||
282 | void lttng_ust_abi_exit(void) | |
283 | __attribute__((visibility("hidden"))); | |
284 | ||
285 | void lttng_ust_abi_events_exit(void) | |
286 | __attribute__((visibility("hidden"))); | |
287 | ||
288 | void lttng_ust_abi_objd_table_owner_cleanup(void *owner) | |
289 | __attribute__((visibility("hidden"))); | |
290 | ||
9c098f23 | 291 | int lttng_ust_interpret_event_filter(const struct lttng_ust_event_common *event, |
36c52fff | 292 | const char *interpreter_stack_data, |
b2e37d27 | 293 | struct lttng_ust_probe_ctx *probe_ctx, |
36c52fff MJ |
294 | void *filter_ctx) |
295 | __attribute__((visibility("hidden"))); | |
296 | ||
297 | int lttng_ust_session_uuid_validate(struct lttng_ust_session *session, | |
298 | unsigned char *uuid) | |
299 | __attribute__((visibility("hidden"))); | |
300 | ||
301 | bool lttng_ust_validate_event_name(const struct lttng_ust_event_desc *desc) | |
302 | __attribute__((visibility("hidden"))); | |
303 | ||
304 | void lttng_ust_format_event_name(const struct lttng_ust_event_desc *desc, | |
305 | char *name) | |
306 | __attribute__((visibility("hidden"))); | |
307 | ||
308 | int lttng_ust_add_app_context_to_ctx_rcu(const char *name, struct lttng_ust_ctx **ctx) | |
309 | __attribute__((visibility("hidden"))); | |
310 | ||
311 | int lttng_ust_context_set_provider_rcu(struct lttng_ust_ctx **_ctx, | |
312 | const char *name, | |
b2e37d27 MD |
313 | size_t (*get_size)(void *priv, struct lttng_ust_probe_ctx *probe_ctx, |
314 | size_t offset), | |
315 | void (*record)(void *priv, struct lttng_ust_probe_ctx *probe_ctx, | |
316 | struct lttng_ust_ring_buffer_ctx *ctx, | |
36c52fff | 317 | struct lttng_ust_channel_buffer *chan), |
b2e37d27 | 318 | void (*get_value)(void *priv, struct lttng_ust_probe_ctx *probe_ctx, |
a5d437c5 | 319 | struct lttng_ust_ctx_value *value)) |
36c52fff MJ |
320 | __attribute__((visibility("hidden"))); |
321 | ||
322 | void lttng_ust_context_set_session_provider(const char *name, | |
b2e37d27 MD |
323 | size_t (*get_size)(void *priv, struct lttng_ust_probe_ctx *probe_ctx, |
324 | size_t offset), | |
325 | void (*record)(void *priv, struct lttng_ust_probe_ctx *probe_ctx, | |
326 | struct lttng_ust_ring_buffer_ctx *ctx, | |
36c52fff | 327 | struct lttng_ust_channel_buffer *chan), |
b2e37d27 | 328 | void (*get_value)(void *priv, struct lttng_ust_probe_ctx *probe_ctx, |
a5d437c5 | 329 | struct lttng_ust_ctx_value *value)) |
36c52fff MJ |
330 | __attribute__((visibility("hidden"))); |
331 | ||
332 | #endif /* _LTTNG_UST_EVENTS_INTERNAL_H */ |