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4f45f9bb JD |
1 | /* |
2 | * plugin.c | |
3 | * | |
4 | * Babeltrace Debug Info Plug-in | |
5 | * | |
6 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
7 | * | |
8 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
9 | * | |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
11 | * of this software and associated documentation files (the "Software"), to deal | |
12 | * in the Software without restriction, including without limitation the rights | |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | * copies of the Software, and to permit persons to whom the Software is | |
15 | * furnished to do so, subject to the following conditions: | |
16 | * | |
17 | * The above copyright notice and this permission notice shall be included in | |
18 | * all copies or substantial portions of the Software. | |
19 | * | |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
23 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
26 | * SOFTWARE. | |
27 | */ | |
28 | ||
7b077a9d JD |
29 | #include <babeltrace/graph/notification-iterator.h> |
30 | #include <babeltrace/graph/private-notification-iterator.h> | |
31 | #include <babeltrace/graph/notification.h> | |
32 | #include <babeltrace/graph/notification-event.h> | |
33 | #include <babeltrace/graph/notification-stream.h> | |
34 | #include <babeltrace/graph/notification-packet.h> | |
35 | #include <babeltrace/graph/component-filter.h> | |
36 | #include <babeltrace/graph/private-component-filter.h> | |
37 | #include <babeltrace/graph/private-port.h> | |
38 | #include <babeltrace/graph/private-connection.h> | |
39 | #include <babeltrace/graph/private-component.h> | |
4f45f9bb | 40 | #include <babeltrace/plugin/plugin-dev.h> |
4f45f9bb JD |
41 | #include <plugins-common.h> |
42 | #include <assert.h> | |
43 | #include "debug-info.h" | |
44 | #include "copy.h" | |
45 | ||
46 | static | |
47 | void destroy_debug_info_data(struct debug_info_component *debug_info) | |
48 | { | |
49 | free(debug_info->arg_debug_info_field_name); | |
50 | g_free(debug_info); | |
51 | } | |
52 | ||
53 | static | |
7b077a9d | 54 | void destroy_debug_info_component(struct bt_private_component *component) |
4f45f9bb | 55 | { |
7b077a9d | 56 | void *data = bt_private_component_get_user_data(component); |
4f45f9bb JD |
57 | destroy_debug_info_data(data); |
58 | } | |
59 | ||
60 | static | |
61 | struct debug_info_component *create_debug_info_component_data(void) | |
62 | { | |
63 | struct debug_info_component *debug_info; | |
64 | ||
65 | debug_info = g_new0(struct debug_info_component, 1); | |
66 | if (!debug_info) { | |
67 | goto end; | |
68 | } | |
69 | debug_info->err = stderr; | |
70 | ||
71 | end: | |
72 | return debug_info; | |
73 | } | |
74 | ||
75 | static | |
76 | void unref_debug_info(struct debug_info *debug_info) | |
77 | { | |
78 | debug_info_destroy(debug_info); | |
79 | } | |
80 | ||
81 | static | |
82 | void unref_trace(struct bt_ctf_trace *trace) | |
83 | { | |
84 | bt_put(trace); | |
85 | } | |
86 | ||
87 | static | |
88 | void unref_stream(struct bt_ctf_stream *stream) | |
89 | { | |
90 | bt_put(stream); | |
91 | } | |
92 | ||
93 | static | |
94 | void unref_packet(struct bt_ctf_packet *packet) | |
95 | { | |
96 | bt_put(packet); | |
97 | } | |
98 | ||
99 | static | |
100 | void unref_stream_class(struct bt_ctf_stream_class *stream_class) | |
101 | { | |
102 | bt_put(stream_class); | |
103 | } | |
104 | ||
105 | static | |
7b077a9d | 106 | void debug_info_iterator_destroy(struct bt_private_notification_iterator *it) |
4f45f9bb JD |
107 | { |
108 | struct debug_info_iterator *it_data; | |
109 | ||
7b077a9d | 110 | it_data = bt_private_notification_iterator_get_user_data(it); |
4f45f9bb JD |
111 | assert(it_data); |
112 | ||
113 | if (it_data->input_iterator_group) { | |
114 | g_ptr_array_free(it_data->input_iterator_group, TRUE); | |
115 | } | |
116 | bt_put(it_data->current_notification); | |
117 | bt_put(it_data->input_iterator); | |
118 | g_hash_table_destroy(it_data->trace_map); | |
119 | g_hash_table_destroy(it_data->stream_map); | |
120 | g_hash_table_destroy(it_data->stream_class_map); | |
121 | g_hash_table_destroy(it_data->packet_map); | |
122 | g_hash_table_destroy(it_data->trace_debug_map); | |
123 | g_free(it_data); | |
124 | } | |
125 | ||
126 | static | |
127 | struct bt_notification *handle_notification(FILE *err, | |
128 | struct debug_info_iterator *debug_it, | |
129 | struct bt_notification *notification) | |
130 | { | |
131 | struct bt_notification *new_notification = NULL; | |
132 | ||
133 | switch (bt_notification_get_type(notification)) { | |
134 | case BT_NOTIFICATION_TYPE_PACKET_BEGIN: | |
135 | { | |
136 | struct bt_ctf_packet *packet = | |
137 | bt_notification_packet_begin_get_packet(notification); | |
138 | struct bt_ctf_packet *writer_packet; | |
139 | ||
140 | if (!packet) { | |
141 | goto end; | |
142 | } | |
143 | ||
144 | writer_packet = debug_info_new_packet(debug_it, packet); | |
145 | assert(writer_packet); | |
146 | new_notification = bt_notification_packet_begin_create( | |
147 | writer_packet); | |
148 | assert(new_notification); | |
149 | bt_put(packet); | |
150 | break; | |
151 | } | |
152 | case BT_NOTIFICATION_TYPE_PACKET_END: | |
153 | { | |
154 | struct bt_ctf_packet *packet = | |
155 | bt_notification_packet_end_get_packet(notification); | |
156 | struct bt_ctf_packet *writer_packet; | |
157 | ||
158 | if (!packet) { | |
159 | goto end; | |
160 | } | |
161 | ||
162 | writer_packet = debug_info_close_packet(debug_it, packet); | |
163 | assert(writer_packet); | |
164 | new_notification = bt_notification_packet_end_create( | |
165 | writer_packet); | |
166 | assert(new_notification); | |
167 | bt_put(packet); | |
4f45f9bb JD |
168 | break; |
169 | } | |
170 | case BT_NOTIFICATION_TYPE_EVENT: | |
171 | { | |
172 | struct bt_ctf_event *event = bt_notification_event_get_event( | |
173 | notification); | |
174 | struct bt_ctf_event *writer_event; | |
175 | struct bt_clock_class_priority_map *cc_prio_map = | |
176 | bt_notification_event_get_clock_class_priority_map( | |
177 | notification); | |
178 | ||
179 | if (!event) { | |
180 | goto end; | |
181 | } | |
182 | writer_event = debug_info_output_event(debug_it, event); | |
183 | assert(writer_event); | |
184 | new_notification = bt_notification_event_create(writer_event, | |
185 | cc_prio_map); | |
186 | bt_put(cc_prio_map); | |
187 | assert(new_notification); | |
188 | bt_put(event); | |
189 | bt_put(writer_event); | |
190 | break; | |
191 | } | |
192 | case BT_NOTIFICATION_TYPE_STREAM_END: | |
193 | { | |
194 | struct bt_ctf_stream *stream = | |
195 | bt_notification_stream_end_get_stream(notification); | |
196 | struct bt_ctf_stream *writer_stream; | |
197 | ||
198 | if (!stream) { | |
199 | goto end; | |
200 | } | |
201 | ||
202 | writer_stream = debug_info_stream_end(debug_it, stream); | |
203 | assert(writer_stream); | |
204 | new_notification = bt_notification_stream_end_create( | |
205 | writer_stream); | |
206 | assert(new_notification); | |
207 | bt_put(stream); | |
208 | bt_put(writer_stream); | |
209 | break; | |
210 | } | |
779fc95d JD |
211 | case BT_NOTIFICATION_TYPE_INACTIVITY: |
212 | { | |
213 | new_notification = bt_get(notification); | |
214 | break; | |
215 | } | |
4f45f9bb JD |
216 | default: |
217 | puts("Unhandled notification type"); | |
218 | } | |
219 | ||
220 | end: | |
221 | return new_notification; | |
222 | } | |
223 | ||
224 | static | |
7b077a9d JD |
225 | struct bt_notification_iterator_next_return debug_info_iterator_next( |
226 | struct bt_private_notification_iterator *iterator) | |
4f45f9bb JD |
227 | { |
228 | struct debug_info_iterator *debug_it = NULL; | |
7b077a9d | 229 | struct bt_private_component *component = NULL; |
4f45f9bb JD |
230 | struct debug_info_component *debug_info = NULL; |
231 | struct bt_notification_iterator *source_it = NULL; | |
7b077a9d JD |
232 | struct bt_notification *notification; |
233 | struct bt_notification_iterator_next_return ret = { | |
234 | .status = BT_NOTIFICATION_ITERATOR_STATUS_OK, | |
235 | .notification = NULL, | |
236 | }; | |
4f45f9bb | 237 | |
7b077a9d | 238 | debug_it = bt_private_notification_iterator_get_user_data(iterator); |
4f45f9bb JD |
239 | assert(debug_it); |
240 | ||
7b077a9d | 241 | component = bt_private_notification_iterator_get_private_component(iterator); |
4f45f9bb | 242 | assert(component); |
7b077a9d | 243 | debug_info = bt_private_component_get_user_data(component); |
4f45f9bb JD |
244 | assert(debug_info); |
245 | ||
246 | source_it = debug_it->input_iterator; | |
247 | ||
7b077a9d JD |
248 | ret.status = bt_notification_iterator_next(source_it); |
249 | if (ret.status != BT_NOTIFICATION_ITERATOR_STATUS_OK) { | |
4f45f9bb JD |
250 | goto end; |
251 | } | |
252 | ||
253 | notification = bt_notification_iterator_get_notification( | |
254 | source_it); | |
255 | if (!notification) { | |
7b077a9d | 256 | ret.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
4f45f9bb JD |
257 | goto end; |
258 | } | |
259 | ||
7b077a9d | 260 | ret.notification = handle_notification(debug_info->err, debug_it, |
4f45f9bb | 261 | notification); |
7b077a9d | 262 | assert(ret.notification); |
4f45f9bb JD |
263 | bt_put(notification); |
264 | ||
4f45f9bb JD |
265 | end: |
266 | bt_put(component); | |
267 | return ret; | |
268 | } | |
269 | ||
4f45f9bb | 270 | static |
7b077a9d JD |
271 | enum bt_notification_iterator_status debug_info_iterator_init( |
272 | struct bt_private_notification_iterator *iterator, | |
273 | struct bt_private_port *port) | |
4f45f9bb JD |
274 | { |
275 | enum bt_notification_iterator_status ret = | |
276 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
277 | enum bt_notification_iterator_status it_ret; | |
7b077a9d JD |
278 | struct bt_private_connection *connection = NULL; |
279 | struct bt_private_component *component = | |
280 | bt_private_notification_iterator_get_private_component(iterator); | |
4f45f9bb | 281 | struct debug_info_iterator *it_data = g_new0(struct debug_info_iterator, 1); |
779fc95d JD |
282 | struct bt_private_port *input_port; |
283 | static const enum bt_notification_type notif_types[] = { | |
284 | BT_NOTIFICATION_TYPE_EVENT, | |
285 | BT_NOTIFICATION_TYPE_STREAM_END, | |
286 | BT_NOTIFICATION_TYPE_PACKET_BEGIN, | |
287 | BT_NOTIFICATION_TYPE_PACKET_END, | |
288 | BT_NOTIFICATION_TYPE_SENTINEL, | |
289 | }; | |
4f45f9bb JD |
290 | |
291 | if (!it_data) { | |
292 | ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM; | |
293 | goto end; | |
294 | } | |
295 | ||
b9d103be | 296 | input_port = bt_private_component_filter_get_input_private_port_by_name( |
779fc95d JD |
297 | component, "in"); |
298 | if (!input_port) { | |
299 | ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; | |
300 | goto end; | |
301 | } | |
302 | ||
7b077a9d | 303 | connection = bt_private_port_get_private_connection(input_port); |
779fc95d JD |
304 | bt_put(input_port); |
305 | if (!connection) { | |
306 | ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; | |
307 | goto end; | |
308 | } | |
4f45f9bb | 309 | |
7b077a9d | 310 | it_data->input_iterator = bt_private_connection_create_notification_iterator( |
779fc95d | 311 | connection, notif_types); |
4f45f9bb JD |
312 | if (!it_data->input_iterator) { |
313 | ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM; | |
314 | goto end; | |
315 | } | |
779fc95d | 316 | |
4f45f9bb | 317 | it_data->debug_info_component = (struct debug_info_component *) |
7b077a9d | 318 | bt_private_component_get_user_data(component); |
4f45f9bb JD |
319 | it_data->err = it_data->debug_info_component->err; |
320 | it_data->trace_map = g_hash_table_new_full(g_direct_hash, | |
321 | g_direct_equal, NULL, (GDestroyNotify) unref_trace); | |
322 | it_data->stream_map = g_hash_table_new_full(g_direct_hash, | |
323 | g_direct_equal, NULL, (GDestroyNotify) unref_stream); | |
324 | it_data->stream_class_map = g_hash_table_new_full(g_direct_hash, | |
325 | g_direct_equal, NULL, (GDestroyNotify) unref_stream_class); | |
326 | it_data->packet_map = g_hash_table_new_full(g_direct_hash, | |
327 | g_direct_equal, NULL, (GDestroyNotify) unref_packet); | |
328 | it_data->trace_debug_map = g_hash_table_new_full(g_direct_hash, | |
329 | g_direct_equal, NULL, (GDestroyNotify) unref_debug_info); | |
330 | ||
7b077a9d | 331 | it_ret = bt_private_notification_iterator_set_user_data(iterator, it_data); |
4f45f9bb JD |
332 | if (it_ret) { |
333 | goto end; | |
334 | } | |
335 | ||
336 | end: | |
337 | bt_put(connection); | |
779fc95d | 338 | bt_put(component); |
4f45f9bb JD |
339 | return ret; |
340 | } | |
341 | ||
342 | static | |
343 | enum bt_component_status init_from_params( | |
344 | struct debug_info_component *debug_info_component, | |
345 | struct bt_value *params) | |
346 | { | |
347 | struct bt_value *value = NULL; | |
348 | enum bt_component_status ret = BT_COMPONENT_STATUS_OK; | |
349 | ||
350 | assert(params); | |
351 | ||
352 | value = bt_value_map_get(params, "debug-info-field-name"); | |
353 | if (value) { | |
354 | enum bt_value_status value_ret; | |
355 | const char *tmp; | |
356 | ||
357 | value_ret = bt_value_string_get(value, &tmp); | |
358 | if (value_ret) { | |
359 | ret = BT_COMPONENT_STATUS_INVALID; | |
360 | printf_error("Failed to retrieve debug-info-field-name value. " | |
361 | "Expecting a string"); | |
362 | } | |
363 | strcpy(debug_info_component->arg_debug_info_field_name, tmp); | |
364 | bt_put(value); | |
365 | } else { | |
366 | debug_info_component->arg_debug_info_field_name = | |
367 | malloc(strlen("debug_info") + 1); | |
368 | if (!debug_info_component->arg_debug_info_field_name) { | |
369 | ret = BT_COMPONENT_STATUS_NOMEM; | |
370 | printf_error(); | |
371 | } | |
372 | sprintf(debug_info_component->arg_debug_info_field_name, | |
373 | "debug_info"); | |
374 | } | |
375 | if (ret != BT_COMPONENT_STATUS_OK) { | |
376 | goto end; | |
377 | } | |
378 | ||
379 | value = bt_value_map_get(params, "debug-dir"); | |
380 | if (value) { | |
381 | enum bt_value_status value_ret; | |
382 | ||
383 | value_ret = bt_value_string_get(value, | |
384 | &debug_info_component->arg_debug_dir); | |
385 | if (value_ret) { | |
386 | ret = BT_COMPONENT_STATUS_INVALID; | |
387 | printf_error("Failed to retrieve debug-dir value. " | |
388 | "Expecting a string"); | |
389 | } | |
390 | } | |
391 | bt_put(value); | |
392 | if (ret != BT_COMPONENT_STATUS_OK) { | |
393 | goto end; | |
394 | } | |
395 | ||
396 | value = bt_value_map_get(params, "target-prefix"); | |
397 | if (value) { | |
398 | enum bt_value_status value_ret; | |
399 | ||
400 | value_ret = bt_value_string_get(value, | |
401 | &debug_info_component->arg_target_prefix); | |
402 | if (value_ret) { | |
403 | ret = BT_COMPONENT_STATUS_INVALID; | |
404 | printf_error("Failed to retrieve target-prefix value. " | |
405 | "Expecting a string"); | |
406 | } | |
407 | } | |
408 | bt_put(value); | |
409 | if (ret != BT_COMPONENT_STATUS_OK) { | |
410 | goto end; | |
411 | } | |
412 | ||
413 | value = bt_value_map_get(params, "full-path"); | |
414 | if (value) { | |
415 | enum bt_value_status value_ret; | |
c55a9f58 | 416 | bt_bool bool_val; |
4f45f9bb JD |
417 | |
418 | value_ret = bt_value_bool_get(value, | |
c55a9f58 | 419 | &bool_val); |
4f45f9bb JD |
420 | if (value_ret) { |
421 | ret = BT_COMPONENT_STATUS_INVALID; | |
422 | printf_error("Failed to retrieve full-path value. " | |
423 | "Expecting a boolean"); | |
424 | } | |
c55a9f58 PP |
425 | |
426 | debug_info_component->arg_full_path = bool_val; | |
4f45f9bb JD |
427 | } |
428 | bt_put(value); | |
429 | if (ret != BT_COMPONENT_STATUS_OK) { | |
430 | goto end; | |
431 | } | |
432 | ||
433 | end: | |
434 | return ret; | |
435 | } | |
436 | ||
437 | enum bt_component_status debug_info_component_init( | |
7b077a9d | 438 | struct bt_private_component *component, struct bt_value *params, |
4f45f9bb JD |
439 | UNUSED_VAR void *init_method_data) |
440 | { | |
441 | enum bt_component_status ret; | |
442 | struct debug_info_component *debug_info = create_debug_info_component_data(); | |
443 | ||
444 | if (!debug_info) { | |
445 | ret = BT_COMPONENT_STATUS_NOMEM; | |
446 | goto end; | |
447 | } | |
448 | ||
7b077a9d | 449 | ret = bt_private_component_set_user_data(component, debug_info); |
4f45f9bb JD |
450 | if (ret != BT_COMPONENT_STATUS_OK) { |
451 | goto error; | |
452 | } | |
453 | ||
147337a3 PP |
454 | ret = bt_private_component_filter_add_input_private_port( |
455 | component, "in", NULL, NULL); | |
456 | if (ret != BT_COMPONENT_STATUS_OK) { | |
779fc95d JD |
457 | goto end; |
458 | } | |
779fc95d | 459 | |
147337a3 PP |
460 | ret = bt_private_component_filter_add_output_private_port( |
461 | component, "out", NULL, NULL); | |
462 | if (ret != BT_COMPONENT_STATUS_OK) { | |
779fc95d JD |
463 | goto end; |
464 | } | |
779fc95d | 465 | |
4f45f9bb JD |
466 | ret = init_from_params(debug_info, params); |
467 | end: | |
468 | return ret; | |
469 | error: | |
470 | destroy_debug_info_data(debug_info); | |
471 | return ret; | |
472 | } | |
473 | ||
474 | /* Initialize plug-in entry points. */ | |
456a4476 PP |
475 | BT_PLUGIN_WITH_ID(lttng_utils, "lttng-utils"); |
476 | BT_PLUGIN_DESCRIPTION_WITH_ID(lttng_utils, "LTTng utilities"); | |
477 | BT_PLUGIN_AUTHOR_WITH_ID(lttng_utils, "Julien Desfossez"); | |
478 | BT_PLUGIN_LICENSE_WITH_ID(lttng_utils, "MIT"); | |
479 | ||
480 | BT_PLUGIN_FILTER_COMPONENT_CLASS_WITH_ID(lttng_utils, debug_info, "debug-info", | |
481 | debug_info_iterator_next); | |
482 | BT_PLUGIN_FILTER_COMPONENT_CLASS_DESCRIPTION_WITH_ID(lttng_utils, debug_info, | |
483 | "Augment compatible events with debugging information."); | |
484 | BT_PLUGIN_FILTER_COMPONENT_CLASS_INIT_METHOD_WITH_ID(lttng_utils, | |
485 | debug_info, debug_info_component_init); | |
486 | BT_PLUGIN_FILTER_COMPONENT_CLASS_FINALIZE_METHOD_WITH_ID(lttng_utils, | |
487 | debug_info, destroy_debug_info_component); | |
488 | BT_PLUGIN_FILTER_COMPONENT_CLASS_NOTIFICATION_ITERATOR_INIT_METHOD_WITH_ID( | |
489 | lttng_utils, debug_info, debug_info_iterator_init); | |
490 | BT_PLUGIN_FILTER_COMPONENT_CLASS_NOTIFICATION_ITERATOR_FINALIZE_METHOD_WITH_ID( | |
491 | lttng_utils, debug_info, debug_info_iterator_destroy); |