Commit | Line | Data |
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f3ed775e DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
d14d33bf AM |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License, version 2 only, | |
6 | * as published by the Free Software Foundation. | |
f3ed775e DG |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
d14d33bf AM |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
f3ed775e DG |
16 | */ |
17 | ||
18 | #define _GNU_SOURCE | |
9f19cc17 | 19 | #include <inttypes.h> |
f3ed775e DG |
20 | #include <popt.h> |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
7a3d1328 | 24 | #include <assert.h> |
f3ed775e | 25 | |
c399183f | 26 | #include "../command.h" |
f3ed775e | 27 | |
9f19cc17 DG |
28 | static int opt_userspace; |
29 | static int opt_kernel; | |
30 | static char *opt_channel; | |
31 | static int opt_domain; | |
f37d259d | 32 | static int opt_fields; |
d78d6610 DG |
33 | #if 0 |
34 | /* Not implemented yet */ | |
35 | static char *opt_cmd_name; | |
36 | static pid_t opt_pid; | |
37 | #endif | |
9f19cc17 DG |
38 | |
39 | const char *indent4 = " "; | |
40 | const char *indent6 = " "; | |
41 | const char *indent8 = " "; | |
f3ed775e DG |
42 | |
43 | enum { | |
44 | OPT_HELP = 1, | |
eeac7d46 | 45 | OPT_USERSPACE, |
679b4943 | 46 | OPT_LIST_OPTIONS, |
f3ed775e DG |
47 | }; |
48 | ||
cd80958d DG |
49 | static struct lttng_handle *handle; |
50 | ||
f3ed775e DG |
51 | static struct poptOption long_options[] = { |
52 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
53 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
9f19cc17 | 54 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, |
d78d6610 DG |
55 | #if 0 |
56 | /* Not implemented yet */ | |
57 | {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0}, | |
58 | {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, | |
59 | #else | |
60 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, | |
61 | #endif | |
9f19cc17 DG |
62 | {"channel", 'c', POPT_ARG_STRING, &opt_channel, 0, 0, 0}, |
63 | {"domain", 'd', POPT_ARG_VAL, &opt_domain, 1, 0, 0}, | |
f37d259d | 64 | {"fields", 'f', POPT_ARG_VAL, &opt_fields, 1, 0, 0}, |
679b4943 | 65 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
f3ed775e DG |
66 | {0, 0, 0, 0, 0, 0, 0} |
67 | }; | |
68 | ||
69 | /* | |
70 | * usage | |
71 | */ | |
72 | static void usage(FILE *ofp) | |
73 | { | |
27221701 | 74 | fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [<OPTIONS>]]\n"); |
9f19cc17 DG |
75 | fprintf(ofp, "\n"); |
76 | fprintf(ofp, "With no arguments, list available tracing session(s)\n"); | |
77 | fprintf(ofp, "\n"); | |
27221701 DG |
78 | fprintf(ofp, "Without a session, -k lists available kernel events\n"); |
79 | fprintf(ofp, "Without a session, -u lists available userspace events\n"); | |
9f19cc17 DG |
80 | fprintf(ofp, "\n"); |
81 | fprintf(ofp, " -h, --help Show this help\n"); | |
27221701 | 82 | fprintf(ofp, " --list-options Simple listing of options\n"); |
9f19cc17 DG |
83 | fprintf(ofp, " -k, --kernel Select kernel domain\n"); |
84 | fprintf(ofp, " -u, --userspace Select user-space domain.\n"); | |
f37d259d | 85 | fprintf(ofp, " -f, --fields List event fields.\n"); |
d78d6610 | 86 | #if 0 |
9f19cc17 | 87 | fprintf(ofp, " -p, --pid PID List user-space events by PID\n"); |
d78d6610 | 88 | #endif |
f3ed775e | 89 | fprintf(ofp, "\n"); |
27221701 | 90 | fprintf(ofp, "Session Options:\n"); |
9f19cc17 DG |
91 | fprintf(ofp, " -c, --channel NAME List details of a channel\n"); |
92 | fprintf(ofp, " -d, --domain List available domain(s)\n"); | |
f3ed775e DG |
93 | fprintf(ofp, "\n"); |
94 | } | |
95 | ||
96 | /* | |
9f19cc17 | 97 | * Get command line from /proc for a specific pid. |
f3ed775e | 98 | * |
9f19cc17 DG |
99 | * On success, return an allocated string pointer to the proc cmdline. |
100 | * On error, return NULL. | |
f3ed775e DG |
101 | */ |
102 | static char *get_cmdline_by_pid(pid_t pid) | |
103 | { | |
104 | int ret; | |
105 | FILE *fp; | |
106 | char *cmdline = NULL; | |
107 | char path[24]; /* Can't go bigger than /proc/65535/cmdline */ | |
108 | ||
109 | snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); | |
110 | fp = fopen(path, "r"); | |
111 | if (fp == NULL) { | |
112 | goto end; | |
113 | } | |
114 | ||
115 | /* Caller must free() *cmdline */ | |
116 | cmdline = malloc(PATH_MAX); | |
117 | ret = fread(cmdline, 1, PATH_MAX, fp); | |
f40799e8 DG |
118 | if (ret < 0) { |
119 | perror("fread proc list"); | |
120 | } | |
f3ed775e DG |
121 | fclose(fp); |
122 | ||
123 | end: | |
124 | return cmdline; | |
125 | } | |
b551a063 | 126 | |
464dd62d MD |
127 | static |
128 | const char *active_string(int value) | |
129 | { | |
130 | switch (value) { | |
b09f0429 MD |
131 | case 0: return " [inactive]"; |
132 | case 1: return " [active]"; | |
464dd62d MD |
133 | case -1: return ""; |
134 | default: return NULL; | |
135 | } | |
136 | } | |
137 | ||
138 | static | |
139 | const char *enabled_string(int value) | |
140 | { | |
141 | switch (value) { | |
b09f0429 MD |
142 | case 0: return " [disabled]"; |
143 | case 1: return " [enabled]"; | |
464dd62d MD |
144 | case -1: return ""; |
145 | default: return NULL; | |
146 | } | |
147 | } | |
148 | ||
fceb65df MD |
149 | static |
150 | const char *filter_string(int value) | |
151 | { | |
152 | switch (value) { | |
153 | case 1: return " [with filter]"; | |
154 | default: return ""; | |
155 | } | |
156 | } | |
157 | ||
8005f29a MD |
158 | static const char *loglevel_string(int value) |
159 | { | |
160 | switch (value) { | |
255a5dab MD |
161 | case -1: |
162 | return ""; | |
163 | case LTTNG_LOGLEVEL_EMERG: | |
164 | return "TRACE_EMERG"; | |
165 | case LTTNG_LOGLEVEL_ALERT: | |
166 | return "TRACE_ALERT"; | |
167 | case LTTNG_LOGLEVEL_CRIT: | |
168 | return "TRACE_CRIT"; | |
169 | case LTTNG_LOGLEVEL_ERR: | |
170 | return "TRACE_ERR"; | |
171 | case LTTNG_LOGLEVEL_WARNING: | |
172 | return "TRACE_WARNING"; | |
173 | case LTTNG_LOGLEVEL_NOTICE: | |
174 | return "TRACE_NOTICE"; | |
175 | case LTTNG_LOGLEVEL_INFO: | |
176 | return "TRACE_INFO"; | |
177 | case LTTNG_LOGLEVEL_DEBUG_SYSTEM: | |
178 | return "TRACE_DEBUG_SYSTEM"; | |
179 | case LTTNG_LOGLEVEL_DEBUG_PROGRAM: | |
180 | return "TRACE_DEBUG_PROGRAM"; | |
181 | case LTTNG_LOGLEVEL_DEBUG_PROCESS: | |
182 | return "TRACE_DEBUG_PROCESS"; | |
183 | case LTTNG_LOGLEVEL_DEBUG_MODULE: | |
184 | return "TRACE_DEBUG_MODULE"; | |
185 | case LTTNG_LOGLEVEL_DEBUG_UNIT: | |
186 | return "TRACE_DEBUG_UNIT"; | |
187 | case LTTNG_LOGLEVEL_DEBUG_FUNCTION: | |
188 | return "TRACE_DEBUG_FUNCTION"; | |
189 | case LTTNG_LOGLEVEL_DEBUG_LINE: | |
190 | return "TRACE_DEBUG_LINE"; | |
191 | case LTTNG_LOGLEVEL_DEBUG: | |
192 | return "TRACE_DEBUG"; | |
193 | default: | |
194 | return "<<UNKNOWN>>"; | |
8005f29a MD |
195 | } |
196 | } | |
197 | ||
b551a063 DG |
198 | /* |
199 | * Pretty print single event. | |
200 | */ | |
201 | static void print_events(struct lttng_event *event) | |
202 | { | |
203 | switch (event->type) { | |
204 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 205 | { |
8b703175 | 206 | if (event->loglevel != -1) { |
fceb65df | 207 | MSG("%s%s (loglevel: %s (%d)) (type: tracepoint)%s%s", |
8b703175 | 208 | indent6, |
81afa345 | 209 | event->name, |
8005f29a | 210 | loglevel_string(event->loglevel), |
8b703175 | 211 | event->loglevel, |
fceb65df MD |
212 | enabled_string(event->enabled), |
213 | filter_string(event->filter)); | |
8b703175 | 214 | } else { |
fceb65df | 215 | MSG("%s%s (type: tracepoint)%s%s", |
8b703175 MD |
216 | indent6, |
217 | event->name, | |
fceb65df MD |
218 | enabled_string(event->enabled), |
219 | filter_string(event->filter)); | |
8b703175 | 220 | } |
b551a063 | 221 | break; |
e4baff1e | 222 | } |
b551a063 | 223 | case LTTNG_EVENT_PROBE: |
fceb65df MD |
224 | MSG("%s%s (type: probe)%s%s", indent6, |
225 | event->name, enabled_string(event->enabled), | |
226 | filter_string(event->filter)); | |
b551a063 DG |
227 | if (event->attr.probe.addr != 0) { |
228 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
229 | } else { | |
230 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
231 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
232 | } | |
233 | break; | |
234 | case LTTNG_EVENT_FUNCTION: | |
235 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
fceb65df MD |
236 | MSG("%s%s (type: function)%s%s", indent6, |
237 | event->name, enabled_string(event->enabled), | |
238 | filter_string(event->filter)); | |
b551a063 DG |
239 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
240 | break; | |
241 | case LTTNG_EVENT_SYSCALL: | |
fceb65df MD |
242 | MSG("%ssyscalls (type: syscall)%s%s", indent6, |
243 | enabled_string(event->enabled), | |
244 | filter_string(event->filter)); | |
b551a063 DG |
245 | break; |
246 | case LTTNG_EVENT_NOOP: | |
fceb65df MD |
247 | MSG("%s (type: noop)%s%s", indent6, |
248 | enabled_string(event->enabled), | |
249 | filter_string(event->filter)); | |
b551a063 DG |
250 | break; |
251 | case LTTNG_EVENT_ALL: | |
252 | /* We should never have "all" events in list. */ | |
253 | assert(0); | |
254 | break; | |
255 | } | |
256 | } | |
257 | ||
f37d259d MD |
258 | static const char *field_type(struct lttng_event_field *field) |
259 | { | |
260 | switch(field->type) { | |
261 | case LTTNG_EVENT_FIELD_INTEGER: | |
262 | return "integer"; | |
263 | case LTTNG_EVENT_FIELD_ENUM: | |
264 | return "enum"; | |
265 | case LTTNG_EVENT_FIELD_FLOAT: | |
266 | return "float"; | |
267 | case LTTNG_EVENT_FIELD_STRING: | |
268 | return "string"; | |
269 | case LTTNG_EVENT_FIELD_OTHER: | |
270 | default: /* fall-through */ | |
271 | return "unknown"; | |
272 | } | |
273 | } | |
274 | ||
275 | /* | |
276 | * Pretty print single event fields. | |
277 | */ | |
278 | static void print_event_field(struct lttng_event_field *field) | |
279 | { | |
280 | if (!field->field_name[0]) { | |
281 | return; | |
282 | } | |
9719a6cc | 283 | MSG("%sfield: %s (%s)", indent8, field->field_name, |
f37d259d MD |
284 | field_type(field)); |
285 | } | |
286 | ||
b551a063 DG |
287 | /* |
288 | * Ask session daemon for all user space tracepoints available. | |
289 | */ | |
290 | static int list_ust_events(void) | |
291 | { | |
292 | int i, size; | |
293 | struct lttng_domain domain; | |
294 | struct lttng_handle *handle; | |
295 | struct lttng_event *event_list; | |
296 | pid_t cur_pid = 0; | |
297 | ||
441c16a7 MD |
298 | memset(&domain, 0, sizeof(domain)); |
299 | ||
b551a063 DG |
300 | DBG("Getting UST tracing events"); |
301 | ||
302 | domain.type = LTTNG_DOMAIN_UST; | |
303 | ||
304 | handle = lttng_create_handle(NULL, &domain); | |
305 | if (handle == NULL) { | |
306 | goto error; | |
307 | } | |
308 | ||
309 | size = lttng_list_tracepoints(handle, &event_list); | |
310 | if (size < 0) { | |
311 | ERR("Unable to list UST events"); | |
ef021732 | 312 | lttng_destroy_handle(handle); |
b551a063 DG |
313 | return size; |
314 | } | |
315 | ||
316 | MSG("UST events:\n-------------"); | |
317 | ||
318 | if (size == 0) { | |
319 | MSG("None"); | |
320 | } | |
321 | ||
322 | for (i = 0; i < size; i++) { | |
323 | if (cur_pid != event_list[i].pid) { | |
324 | cur_pid = event_list[i].pid; | |
325 | MSG("\nPID: %d - Name: %s", cur_pid, get_cmdline_by_pid(cur_pid)); | |
326 | } | |
327 | print_events(&event_list[i]); | |
328 | } | |
329 | ||
330 | MSG(""); | |
331 | ||
332 | free(event_list); | |
ef021732 | 333 | lttng_destroy_handle(handle); |
b551a063 DG |
334 | |
335 | return CMD_SUCCESS; | |
336 | ||
337 | error: | |
ef021732 | 338 | lttng_destroy_handle(handle); |
b551a063 DG |
339 | return -1; |
340 | } | |
f3ed775e | 341 | |
f37d259d MD |
342 | /* |
343 | * Ask session daemon for all user space tracepoint fields available. | |
344 | */ | |
345 | static int list_ust_event_fields(void) | |
346 | { | |
347 | int i, size; | |
348 | struct lttng_domain domain; | |
349 | struct lttng_handle *handle; | |
350 | struct lttng_event_field *event_field_list; | |
351 | pid_t cur_pid = 0; | |
352 | struct lttng_event cur_event; | |
353 | ||
354 | memset(&domain, 0, sizeof(domain)); | |
355 | memset(&cur_event, 0, sizeof(cur_event)); | |
356 | ||
357 | DBG("Getting UST tracing event fields"); | |
358 | ||
359 | domain.type = LTTNG_DOMAIN_UST; | |
360 | ||
361 | handle = lttng_create_handle(NULL, &domain); | |
362 | if (handle == NULL) { | |
363 | goto error; | |
364 | } | |
365 | ||
366 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
367 | if (size < 0) { | |
368 | ERR("Unable to list UST event fields"); | |
369 | lttng_destroy_handle(handle); | |
370 | return size; | |
371 | } | |
372 | ||
373 | MSG("UST events:\n-------------"); | |
374 | ||
375 | if (size == 0) { | |
376 | MSG("None"); | |
377 | } | |
378 | ||
379 | for (i = 0; i < size; i++) { | |
380 | if (cur_pid != event_field_list[i].event.pid) { | |
381 | cur_pid = event_field_list[i].event.pid; | |
382 | MSG("\nPID: %d - Name: %s", cur_pid, get_cmdline_by_pid(cur_pid)); | |
383 | } | |
384 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
385 | print_events(&event_field_list[i].event); | |
386 | memcpy(&cur_event, &event_field_list[i].event, | |
387 | sizeof(cur_event)); | |
388 | } | |
389 | print_event_field(&event_field_list[i]); | |
390 | } | |
391 | ||
392 | MSG(""); | |
393 | ||
394 | free(event_field_list); | |
395 | lttng_destroy_handle(handle); | |
396 | ||
397 | return CMD_SUCCESS; | |
398 | ||
399 | error: | |
400 | lttng_destroy_handle(handle); | |
401 | return -1; | |
402 | } | |
403 | ||
f3ed775e | 404 | /* |
9f19cc17 | 405 | * Ask for all trace events in the kernel and pretty print them. |
f3ed775e | 406 | */ |
9f19cc17 | 407 | static int list_kernel_events(void) |
f3ed775e | 408 | { |
9f19cc17 | 409 | int i, size; |
b551a063 DG |
410 | struct lttng_domain domain; |
411 | struct lttng_handle *handle; | |
9f19cc17 | 412 | struct lttng_event *event_list; |
f3ed775e | 413 | |
441c16a7 MD |
414 | memset(&domain, 0, sizeof(domain)); |
415 | ||
b551a063 DG |
416 | DBG("Getting kernel tracing events"); |
417 | ||
418 | domain.type = LTTNG_DOMAIN_KERNEL; | |
419 | ||
420 | handle = lttng_create_handle(NULL, &domain); | |
421 | if (handle == NULL) { | |
422 | goto error; | |
423 | } | |
f3ed775e | 424 | |
cd80958d | 425 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 DG |
426 | if (size < 0) { |
427 | ERR("Unable to list kernel events"); | |
ef021732 | 428 | lttng_destroy_handle(handle); |
9f19cc17 | 429 | return size; |
f3ed775e DG |
430 | } |
431 | ||
9f19cc17 | 432 | MSG("Kernel events:\n-------------"); |
f3ed775e | 433 | |
9f19cc17 | 434 | for (i = 0; i < size; i++) { |
b551a063 | 435 | print_events(&event_list[i]); |
f3ed775e DG |
436 | } |
437 | ||
b551a063 DG |
438 | MSG(""); |
439 | ||
f3ed775e DG |
440 | free(event_list); |
441 | ||
ef021732 | 442 | lttng_destroy_handle(handle); |
f3ed775e | 443 | return CMD_SUCCESS; |
b551a063 DG |
444 | |
445 | error: | |
ef021732 | 446 | lttng_destroy_handle(handle); |
b551a063 | 447 | return -1; |
f3ed775e DG |
448 | } |
449 | ||
450 | /* | |
9f19cc17 | 451 | * List events of channel of session and domain. |
f3ed775e | 452 | */ |
cd80958d | 453 | static int list_events(const char *channel_name) |
f3ed775e DG |
454 | { |
455 | int ret, count, i; | |
9f19cc17 | 456 | struct lttng_event *events = NULL; |
f3ed775e | 457 | |
cd80958d | 458 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e DG |
459 | if (count < 0) { |
460 | ret = count; | |
461 | goto error; | |
462 | } | |
463 | ||
9f19cc17 DG |
464 | MSG("\n%sEvents:", indent4); |
465 | if (count == 0) { | |
5edd7e09 | 466 | MSG("%sNone\n", indent6); |
9f19cc17 DG |
467 | goto end; |
468 | } | |
469 | ||
f3ed775e | 470 | for (i = 0; i < count; i++) { |
b551a063 | 471 | print_events(&events[i]); |
f3ed775e DG |
472 | } |
473 | ||
9f19cc17 | 474 | MSG(""); |
f3ed775e | 475 | |
9f19cc17 DG |
476 | end: |
477 | if (events) { | |
478 | free(events); | |
479 | } | |
480 | ret = CMD_SUCCESS; | |
f3ed775e DG |
481 | |
482 | error: | |
483 | return ret; | |
484 | } | |
485 | ||
486 | /* | |
9f19cc17 DG |
487 | * Pretty print channel |
488 | */ | |
489 | static void print_channel(struct lttng_channel *channel) | |
490 | { | |
464dd62d | 491 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
492 | |
493 | MSG("%sAttributes:", indent4); | |
494 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); | |
495 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
496 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); | |
497 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); | |
498 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
499 | switch (channel->attr.output) { | |
500 | case LTTNG_EVENT_SPLICE: | |
501 | MSG("%soutput: splice()", indent6); | |
502 | break; | |
503 | case LTTNG_EVENT_MMAP: | |
504 | MSG("%soutput: mmap()", indent6); | |
505 | break; | |
506 | } | |
507 | } | |
508 | ||
509 | /* | |
510 | * List channel(s) of session and domain. | |
f3ed775e | 511 | * |
9f19cc17 | 512 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 513 | */ |
cd80958d | 514 | static int list_channels(const char *channel_name) |
f3ed775e | 515 | { |
9f19cc17 DG |
516 | int count, i, ret = CMD_SUCCESS; |
517 | unsigned int chan_found = 0; | |
518 | struct lttng_channel *channels = NULL; | |
f3ed775e | 519 | |
3e25cb20 | 520 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 521 | |
cd80958d | 522 | count = lttng_list_channels(handle, &channels); |
f3ed775e DG |
523 | if (count < 0) { |
524 | ret = count; | |
ae856491 | 525 | goto error_channels; |
9f19cc17 | 526 | } else if (count == 0) { |
ae856491 DG |
527 | ERR("Channel %s not found", channel_name); |
528 | goto error; | |
f3ed775e DG |
529 | } |
530 | ||
9f19cc17 DG |
531 | if (channel_name == NULL) { |
532 | MSG("Channels:\n-------------"); | |
533 | } | |
534 | ||
535 | for (i = 0; i < count; i++) { | |
536 | if (channel_name != NULL) { | |
537 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
538 | chan_found = 1; | |
539 | } else { | |
540 | continue; | |
541 | } | |
542 | } | |
543 | print_channel(&channels[i]); | |
544 | ||
545 | /* Listing events per channel */ | |
cd80958d | 546 | ret = list_events(channels[i].name); |
9f19cc17 | 547 | if (ret < 0) { |
9a745bc7 | 548 | MSG("%s", lttng_strerror(ret)); |
9f19cc17 DG |
549 | } |
550 | ||
551 | if (chan_found) { | |
552 | break; | |
f3ed775e | 553 | } |
f3ed775e DG |
554 | } |
555 | ||
9f19cc17 | 556 | if (!chan_found && channel_name != NULL) { |
ae856491 DG |
557 | ERR("Channel %s not found", channel_name); |
558 | goto error; | |
9f19cc17 | 559 | } |
f3ed775e | 560 | |
9f19cc17 | 561 | ret = CMD_SUCCESS; |
f3ed775e DG |
562 | |
563 | error: | |
ae856491 DG |
564 | free(channels); |
565 | ||
566 | error_channels: | |
f3ed775e DG |
567 | return ret; |
568 | } | |
569 | ||
570 | /* | |
9f19cc17 | 571 | * List available tracing session. List only basic information. |
f3ed775e | 572 | * |
9f19cc17 | 573 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 574 | */ |
9f19cc17 | 575 | static int list_sessions(const char *session_name) |
f3ed775e | 576 | { |
9f19cc17 DG |
577 | int ret, count, i; |
578 | unsigned int session_found = 0; | |
579 | struct lttng_session *sessions; | |
580 | ||
581 | count = lttng_list_sessions(&sessions); | |
582 | DBG("Session count %d", count); | |
583 | if (count < 0) { | |
584 | ret = count; | |
585 | goto error; | |
d32fb093 DG |
586 | } else if (count == 0) { |
587 | MSG("Currently no available tracing session"); | |
588 | goto end; | |
9f19cc17 DG |
589 | } |
590 | ||
591 | if (session_name == NULL) { | |
592 | MSG("Available tracing sessions:"); | |
593 | } | |
594 | ||
595 | for (i = 0; i < count; i++) { | |
596 | if (session_name != NULL) { | |
597 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
598 | session_found = 1; | |
464dd62d | 599 | MSG("Tracing session %s:%s", session_name, active_string(sessions[i].enabled)); |
9f19cc17 DG |
600 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); |
601 | break; | |
602 | } | |
cd80958d | 603 | continue; |
9f19cc17 DG |
604 | } |
605 | ||
b6913340 DG |
606 | MSG(" %d) %s (%s)%s", i + 1, sessions[i].name, sessions[i].path, |
607 | active_string(sessions[i].enabled)); | |
9f19cc17 DG |
608 | |
609 | if (session_found) { | |
610 | break; | |
611 | } | |
612 | } | |
613 | ||
614 | free(sessions); | |
615 | ||
616 | if (!session_found && session_name != NULL) { | |
b6913340 DG |
617 | ERR("Session '%s' not found", session_name); |
618 | ret = CMD_ERROR; | |
619 | goto error; | |
9f19cc17 DG |
620 | } |
621 | ||
622 | if (session_name == NULL) { | |
6e0de39b | 623 | MSG("\nUse lttng list <session_name> for more details"); |
9f19cc17 | 624 | } |
f3ed775e | 625 | |
d32fb093 | 626 | end: |
f3ed775e DG |
627 | return CMD_SUCCESS; |
628 | ||
629 | error: | |
630 | return ret; | |
631 | } | |
f3ed775e DG |
632 | |
633 | /* | |
9f19cc17 | 634 | * List available domain(s) for a session. |
f3ed775e | 635 | */ |
330be774 | 636 | static int list_domains(const char *session_name) |
f3ed775e | 637 | { |
9f19cc17 DG |
638 | int i, count, ret = CMD_SUCCESS; |
639 | struct lttng_domain *domains = NULL; | |
640 | ||
641 | MSG("Domains:\n-------------"); | |
642 | ||
330be774 | 643 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 DG |
644 | if (count < 0) { |
645 | ret = count; | |
646 | goto error; | |
647 | } else if (count == 0) { | |
648 | MSG(" None"); | |
649 | goto end; | |
650 | } | |
651 | ||
652 | for (i = 0; i < count; i++) { | |
653 | switch (domains[i].type) { | |
654 | case LTTNG_DOMAIN_KERNEL: | |
655 | MSG(" - Kernel"); | |
b551a063 DG |
656 | break; |
657 | case LTTNG_DOMAIN_UST: | |
658 | MSG(" - UST global"); | |
659 | break; | |
9f19cc17 DG |
660 | default: |
661 | break; | |
662 | } | |
663 | } | |
664 | ||
665 | end: | |
666 | free(domains); | |
667 | ||
668 | error: | |
669 | return ret; | |
f3ed775e | 670 | } |
f3ed775e DG |
671 | |
672 | /* | |
9f19cc17 | 673 | * The 'list <options>' first level command |
f3ed775e DG |
674 | */ |
675 | int cmd_list(int argc, const char **argv) | |
676 | { | |
9f19cc17 | 677 | int opt, i, ret = CMD_SUCCESS; |
c3919711 | 678 | int nb_domain; |
9f19cc17 | 679 | const char *session_name; |
f3ed775e | 680 | static poptContext pc; |
9f19cc17 DG |
681 | struct lttng_domain domain; |
682 | struct lttng_domain *domains = NULL; | |
f3ed775e | 683 | |
441c16a7 MD |
684 | memset(&domain, 0, sizeof(domain)); |
685 | ||
9f19cc17 | 686 | if (argc < 1) { |
f3ed775e | 687 | usage(stderr); |
ca1c3607 | 688 | ret = CMD_ERROR; |
f3ed775e DG |
689 | goto end; |
690 | } | |
691 | ||
692 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
693 | poptReadDefaultConfig(pc, 0); | |
694 | ||
695 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
696 | switch (opt) { | |
697 | case OPT_HELP: | |
ca1c3607 | 698 | usage(stdout); |
f3ed775e | 699 | goto end; |
eeac7d46 MD |
700 | case OPT_USERSPACE: |
701 | opt_userspace = 1; | |
eeac7d46 | 702 | break; |
679b4943 SM |
703 | case OPT_LIST_OPTIONS: |
704 | list_cmd_options(stdout, long_options); | |
679b4943 | 705 | goto end; |
f3ed775e DG |
706 | default: |
707 | usage(stderr); | |
708 | ret = CMD_UNDEFINED; | |
709 | goto end; | |
710 | } | |
711 | } | |
712 | ||
9f19cc17 DG |
713 | /* Get session name (trailing argument) */ |
714 | session_name = poptGetArg(pc); | |
b551a063 | 715 | DBG2("Session name: %s", session_name); |
9f19cc17 | 716 | |
cd80958d DG |
717 | if (opt_kernel) { |
718 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
719 | } else if (opt_userspace) { |
720 | DBG2("Listing userspace global domain"); | |
721 | domain.type = LTTNG_DOMAIN_UST; | |
cd80958d DG |
722 | } |
723 | ||
aa5de748 MD |
724 | if (opt_kernel || opt_userspace) { |
725 | handle = lttng_create_handle(session_name, &domain); | |
726 | if (handle == NULL) { | |
727 | ret = CMD_FATAL; | |
728 | goto end; | |
729 | } | |
cd80958d DG |
730 | } |
731 | ||
9f19cc17 | 732 | if (session_name == NULL) { |
b551a063 DG |
733 | if (!opt_kernel && !opt_userspace) { |
734 | ret = list_sessions(NULL); | |
b6913340 | 735 | if (ret != 0) { |
b551a063 DG |
736 | goto end; |
737 | } | |
738 | } | |
9f19cc17 DG |
739 | if (opt_kernel) { |
740 | ret = list_kernel_events(); | |
741 | if (ret < 0) { | |
742 | goto end; | |
743 | } | |
b551a063 DG |
744 | } |
745 | if (opt_userspace) { | |
f37d259d MD |
746 | if (opt_fields) { |
747 | ret = list_ust_event_fields(); | |
748 | } else { | |
749 | ret = list_ust_events(); | |
750 | } | |
9f19cc17 DG |
751 | if (ret < 0) { |
752 | goto end; | |
753 | } | |
754 | } | |
755 | } else { | |
756 | /* List session attributes */ | |
757 | ret = list_sessions(session_name); | |
b6913340 | 758 | if (ret != 0) { |
9f19cc17 DG |
759 | goto end; |
760 | } | |
761 | ||
762 | /* Domain listing */ | |
763 | if (opt_domain) { | |
330be774 | 764 | ret = list_domains(session_name); |
9f19cc17 DG |
765 | goto end; |
766 | } | |
767 | ||
768 | if (opt_kernel) { | |
9f19cc17 | 769 | /* Channel listing */ |
cd80958d | 770 | ret = list_channels(opt_channel); |
9f19cc17 DG |
771 | if (ret < 0) { |
772 | goto end; | |
773 | } | |
9f19cc17 DG |
774 | } else { |
775 | /* We want all domain(s) */ | |
330be774 | 776 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 777 | if (nb_domain < 0) { |
67635185 | 778 | ret = nb_domain; |
9f19cc17 DG |
779 | goto end; |
780 | } | |
781 | ||
b551a063 | 782 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
783 | switch (domains[i].type) { |
784 | case LTTNG_DOMAIN_KERNEL: | |
785 | MSG("=== Domain: Kernel ===\n"); | |
786 | break; | |
b551a063 DG |
787 | case LTTNG_DOMAIN_UST: |
788 | MSG("=== Domain: UST global ===\n"); | |
789 | break; | |
9f19cc17 DG |
790 | default: |
791 | MSG("=== Domain: Unimplemented ===\n"); | |
792 | break; | |
793 | } | |
794 | ||
cd80958d | 795 | /* Clean handle before creating a new one */ |
aa5de748 MD |
796 | if (handle) { |
797 | lttng_destroy_handle(handle); | |
798 | } | |
cd80958d DG |
799 | |
800 | handle = lttng_create_handle(session_name, &domains[i]); | |
801 | if (handle == NULL) { | |
ca1c3607 | 802 | ret = CMD_FATAL; |
cd80958d DG |
803 | goto end; |
804 | } | |
805 | ||
806 | ret = list_channels(opt_channel); | |
9f19cc17 DG |
807 | if (ret < 0) { |
808 | goto end; | |
809 | } | |
810 | } | |
811 | } | |
f3ed775e DG |
812 | } |
813 | ||
814 | end: | |
9f19cc17 DG |
815 | if (domains) { |
816 | free(domains); | |
817 | } | |
aa5de748 MD |
818 | if (handle) { |
819 | lttng_destroy_handle(handle); | |
820 | } | |
cd80958d | 821 | |
ca1c3607 | 822 | poptFreeContext(pc); |
f3ed775e DG |
823 | return ret; |
824 | } |