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 | ||
8005f29a MD |
149 | static const char *loglevel_string(int value) |
150 | { | |
151 | switch (value) { | |
255a5dab MD |
152 | case -1: |
153 | return ""; | |
154 | case LTTNG_LOGLEVEL_EMERG: | |
155 | return "TRACE_EMERG"; | |
156 | case LTTNG_LOGLEVEL_ALERT: | |
157 | return "TRACE_ALERT"; | |
158 | case LTTNG_LOGLEVEL_CRIT: | |
159 | return "TRACE_CRIT"; | |
160 | case LTTNG_LOGLEVEL_ERR: | |
161 | return "TRACE_ERR"; | |
162 | case LTTNG_LOGLEVEL_WARNING: | |
163 | return "TRACE_WARNING"; | |
164 | case LTTNG_LOGLEVEL_NOTICE: | |
165 | return "TRACE_NOTICE"; | |
166 | case LTTNG_LOGLEVEL_INFO: | |
167 | return "TRACE_INFO"; | |
168 | case LTTNG_LOGLEVEL_DEBUG_SYSTEM: | |
169 | return "TRACE_DEBUG_SYSTEM"; | |
170 | case LTTNG_LOGLEVEL_DEBUG_PROGRAM: | |
171 | return "TRACE_DEBUG_PROGRAM"; | |
172 | case LTTNG_LOGLEVEL_DEBUG_PROCESS: | |
173 | return "TRACE_DEBUG_PROCESS"; | |
174 | case LTTNG_LOGLEVEL_DEBUG_MODULE: | |
175 | return "TRACE_DEBUG_MODULE"; | |
176 | case LTTNG_LOGLEVEL_DEBUG_UNIT: | |
177 | return "TRACE_DEBUG_UNIT"; | |
178 | case LTTNG_LOGLEVEL_DEBUG_FUNCTION: | |
179 | return "TRACE_DEBUG_FUNCTION"; | |
180 | case LTTNG_LOGLEVEL_DEBUG_LINE: | |
181 | return "TRACE_DEBUG_LINE"; | |
182 | case LTTNG_LOGLEVEL_DEBUG: | |
183 | return "TRACE_DEBUG"; | |
184 | default: | |
185 | return "<<UNKNOWN>>"; | |
8005f29a MD |
186 | } |
187 | } | |
188 | ||
b551a063 DG |
189 | /* |
190 | * Pretty print single event. | |
191 | */ | |
192 | static void print_events(struct lttng_event *event) | |
193 | { | |
194 | switch (event->type) { | |
195 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 196 | { |
8b703175 MD |
197 | if (event->loglevel != -1) { |
198 | MSG("%s%s (loglevel: %s (%d)) (type: tracepoint)%s", | |
199 | indent6, | |
81afa345 | 200 | event->name, |
8005f29a | 201 | loglevel_string(event->loglevel), |
8b703175 | 202 | event->loglevel, |
81afa345 | 203 | enabled_string(event->enabled)); |
8b703175 MD |
204 | } else { |
205 | MSG("%s%s (type: tracepoint)%s", | |
206 | indent6, | |
207 | event->name, | |
208 | enabled_string(event->enabled)); | |
209 | } | |
b551a063 | 210 | break; |
e4baff1e | 211 | } |
b551a063 | 212 | case LTTNG_EVENT_PROBE: |
464dd62d MD |
213 | MSG("%s%s (type: probe)%s", indent6, |
214 | event->name, enabled_string(event->enabled)); | |
b551a063 DG |
215 | if (event->attr.probe.addr != 0) { |
216 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
217 | } else { | |
218 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
219 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
220 | } | |
221 | break; | |
222 | case LTTNG_EVENT_FUNCTION: | |
223 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
464dd62d MD |
224 | MSG("%s%s (type: function)%s", indent6, |
225 | event->name, enabled_string(event->enabled)); | |
b551a063 DG |
226 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
227 | break; | |
228 | case LTTNG_EVENT_SYSCALL: | |
2c425ff7 | 229 | MSG("%ssyscalls (type: syscall)%s", indent6, |
464dd62d | 230 | enabled_string(event->enabled)); |
b551a063 DG |
231 | break; |
232 | case LTTNG_EVENT_NOOP: | |
464dd62d MD |
233 | MSG("%s (type: noop)%s", indent6, |
234 | enabled_string(event->enabled)); | |
b551a063 DG |
235 | break; |
236 | case LTTNG_EVENT_ALL: | |
237 | /* We should never have "all" events in list. */ | |
238 | assert(0); | |
239 | break; | |
240 | } | |
241 | } | |
242 | ||
f37d259d MD |
243 | static const char *field_type(struct lttng_event_field *field) |
244 | { | |
245 | switch(field->type) { | |
246 | case LTTNG_EVENT_FIELD_INTEGER: | |
247 | return "integer"; | |
248 | case LTTNG_EVENT_FIELD_ENUM: | |
249 | return "enum"; | |
250 | case LTTNG_EVENT_FIELD_FLOAT: | |
251 | return "float"; | |
252 | case LTTNG_EVENT_FIELD_STRING: | |
253 | return "string"; | |
254 | case LTTNG_EVENT_FIELD_OTHER: | |
255 | default: /* fall-through */ | |
256 | return "unknown"; | |
257 | } | |
258 | } | |
259 | ||
260 | /* | |
261 | * Pretty print single event fields. | |
262 | */ | |
263 | static void print_event_field(struct lttng_event_field *field) | |
264 | { | |
265 | if (!field->field_name[0]) { | |
266 | return; | |
267 | } | |
268 | MSG("%sfield: %s (%s)", indent6, field->field_name, | |
269 | field_type(field)); | |
270 | } | |
271 | ||
b551a063 DG |
272 | /* |
273 | * Ask session daemon for all user space tracepoints available. | |
274 | */ | |
275 | static int list_ust_events(void) | |
276 | { | |
277 | int i, size; | |
278 | struct lttng_domain domain; | |
279 | struct lttng_handle *handle; | |
280 | struct lttng_event *event_list; | |
281 | pid_t cur_pid = 0; | |
282 | ||
441c16a7 MD |
283 | memset(&domain, 0, sizeof(domain)); |
284 | ||
b551a063 DG |
285 | DBG("Getting UST tracing events"); |
286 | ||
287 | domain.type = LTTNG_DOMAIN_UST; | |
288 | ||
289 | handle = lttng_create_handle(NULL, &domain); | |
290 | if (handle == NULL) { | |
291 | goto error; | |
292 | } | |
293 | ||
294 | size = lttng_list_tracepoints(handle, &event_list); | |
295 | if (size < 0) { | |
296 | ERR("Unable to list UST events"); | |
ef021732 | 297 | lttng_destroy_handle(handle); |
b551a063 DG |
298 | return size; |
299 | } | |
300 | ||
301 | MSG("UST events:\n-------------"); | |
302 | ||
303 | if (size == 0) { | |
304 | MSG("None"); | |
305 | } | |
306 | ||
307 | for (i = 0; i < size; i++) { | |
308 | if (cur_pid != event_list[i].pid) { | |
309 | cur_pid = event_list[i].pid; | |
310 | MSG("\nPID: %d - Name: %s", cur_pid, get_cmdline_by_pid(cur_pid)); | |
311 | } | |
312 | print_events(&event_list[i]); | |
313 | } | |
314 | ||
315 | MSG(""); | |
316 | ||
317 | free(event_list); | |
ef021732 | 318 | lttng_destroy_handle(handle); |
b551a063 DG |
319 | |
320 | return CMD_SUCCESS; | |
321 | ||
322 | error: | |
ef021732 | 323 | lttng_destroy_handle(handle); |
b551a063 DG |
324 | return -1; |
325 | } | |
f3ed775e | 326 | |
f37d259d MD |
327 | /* |
328 | * Ask session daemon for all user space tracepoint fields available. | |
329 | */ | |
330 | static int list_ust_event_fields(void) | |
331 | { | |
332 | int i, size; | |
333 | struct lttng_domain domain; | |
334 | struct lttng_handle *handle; | |
335 | struct lttng_event_field *event_field_list; | |
336 | pid_t cur_pid = 0; | |
337 | struct lttng_event cur_event; | |
338 | ||
339 | memset(&domain, 0, sizeof(domain)); | |
340 | memset(&cur_event, 0, sizeof(cur_event)); | |
341 | ||
342 | DBG("Getting UST tracing event fields"); | |
343 | ||
344 | domain.type = LTTNG_DOMAIN_UST; | |
345 | ||
346 | handle = lttng_create_handle(NULL, &domain); | |
347 | if (handle == NULL) { | |
348 | goto error; | |
349 | } | |
350 | ||
351 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
352 | if (size < 0) { | |
353 | ERR("Unable to list UST event fields"); | |
354 | lttng_destroy_handle(handle); | |
355 | return size; | |
356 | } | |
357 | ||
358 | MSG("UST events:\n-------------"); | |
359 | ||
360 | if (size == 0) { | |
361 | MSG("None"); | |
362 | } | |
363 | ||
364 | for (i = 0; i < size; i++) { | |
365 | if (cur_pid != event_field_list[i].event.pid) { | |
366 | cur_pid = event_field_list[i].event.pid; | |
367 | MSG("\nPID: %d - Name: %s", cur_pid, get_cmdline_by_pid(cur_pid)); | |
368 | } | |
369 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
370 | print_events(&event_field_list[i].event); | |
371 | memcpy(&cur_event, &event_field_list[i].event, | |
372 | sizeof(cur_event)); | |
373 | } | |
374 | print_event_field(&event_field_list[i]); | |
375 | } | |
376 | ||
377 | MSG(""); | |
378 | ||
379 | free(event_field_list); | |
380 | lttng_destroy_handle(handle); | |
381 | ||
382 | return CMD_SUCCESS; | |
383 | ||
384 | error: | |
385 | lttng_destroy_handle(handle); | |
386 | return -1; | |
387 | } | |
388 | ||
f3ed775e | 389 | /* |
9f19cc17 | 390 | * Ask for all trace events in the kernel and pretty print them. |
f3ed775e | 391 | */ |
9f19cc17 | 392 | static int list_kernel_events(void) |
f3ed775e | 393 | { |
9f19cc17 | 394 | int i, size; |
b551a063 DG |
395 | struct lttng_domain domain; |
396 | struct lttng_handle *handle; | |
9f19cc17 | 397 | struct lttng_event *event_list; |
f3ed775e | 398 | |
441c16a7 MD |
399 | memset(&domain, 0, sizeof(domain)); |
400 | ||
b551a063 DG |
401 | DBG("Getting kernel tracing events"); |
402 | ||
403 | domain.type = LTTNG_DOMAIN_KERNEL; | |
404 | ||
405 | handle = lttng_create_handle(NULL, &domain); | |
406 | if (handle == NULL) { | |
407 | goto error; | |
408 | } | |
f3ed775e | 409 | |
cd80958d | 410 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 DG |
411 | if (size < 0) { |
412 | ERR("Unable to list kernel events"); | |
ef021732 | 413 | lttng_destroy_handle(handle); |
9f19cc17 | 414 | return size; |
f3ed775e DG |
415 | } |
416 | ||
9f19cc17 | 417 | MSG("Kernel events:\n-------------"); |
f3ed775e | 418 | |
9f19cc17 | 419 | for (i = 0; i < size; i++) { |
b551a063 | 420 | print_events(&event_list[i]); |
f3ed775e DG |
421 | } |
422 | ||
b551a063 DG |
423 | MSG(""); |
424 | ||
f3ed775e DG |
425 | free(event_list); |
426 | ||
ef021732 | 427 | lttng_destroy_handle(handle); |
f3ed775e | 428 | return CMD_SUCCESS; |
b551a063 DG |
429 | |
430 | error: | |
ef021732 | 431 | lttng_destroy_handle(handle); |
b551a063 | 432 | return -1; |
f3ed775e DG |
433 | } |
434 | ||
435 | /* | |
9f19cc17 | 436 | * List events of channel of session and domain. |
f3ed775e | 437 | */ |
cd80958d | 438 | static int list_events(const char *channel_name) |
f3ed775e DG |
439 | { |
440 | int ret, count, i; | |
9f19cc17 | 441 | struct lttng_event *events = NULL; |
f3ed775e | 442 | |
cd80958d | 443 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e DG |
444 | if (count < 0) { |
445 | ret = count; | |
446 | goto error; | |
447 | } | |
448 | ||
9f19cc17 DG |
449 | MSG("\n%sEvents:", indent4); |
450 | if (count == 0) { | |
5edd7e09 | 451 | MSG("%sNone\n", indent6); |
9f19cc17 DG |
452 | goto end; |
453 | } | |
454 | ||
f3ed775e | 455 | for (i = 0; i < count; i++) { |
b551a063 | 456 | print_events(&events[i]); |
f3ed775e DG |
457 | } |
458 | ||
9f19cc17 | 459 | MSG(""); |
f3ed775e | 460 | |
9f19cc17 DG |
461 | end: |
462 | if (events) { | |
463 | free(events); | |
464 | } | |
465 | ret = CMD_SUCCESS; | |
f3ed775e DG |
466 | |
467 | error: | |
468 | return ret; | |
469 | } | |
470 | ||
471 | /* | |
9f19cc17 DG |
472 | * Pretty print channel |
473 | */ | |
474 | static void print_channel(struct lttng_channel *channel) | |
475 | { | |
464dd62d | 476 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
477 | |
478 | MSG("%sAttributes:", indent4); | |
479 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); | |
480 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
481 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); | |
482 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); | |
483 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
484 | switch (channel->attr.output) { | |
485 | case LTTNG_EVENT_SPLICE: | |
486 | MSG("%soutput: splice()", indent6); | |
487 | break; | |
488 | case LTTNG_EVENT_MMAP: | |
489 | MSG("%soutput: mmap()", indent6); | |
490 | break; | |
491 | } | |
492 | } | |
493 | ||
494 | /* | |
495 | * List channel(s) of session and domain. | |
f3ed775e | 496 | * |
9f19cc17 | 497 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 498 | */ |
cd80958d | 499 | static int list_channels(const char *channel_name) |
f3ed775e | 500 | { |
9f19cc17 DG |
501 | int count, i, ret = CMD_SUCCESS; |
502 | unsigned int chan_found = 0; | |
503 | struct lttng_channel *channels = NULL; | |
f3ed775e | 504 | |
3e25cb20 | 505 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 506 | |
cd80958d | 507 | count = lttng_list_channels(handle, &channels); |
f3ed775e DG |
508 | if (count < 0) { |
509 | ret = count; | |
ae856491 | 510 | goto error_channels; |
9f19cc17 | 511 | } else if (count == 0) { |
ae856491 DG |
512 | ERR("Channel %s not found", channel_name); |
513 | goto error; | |
f3ed775e DG |
514 | } |
515 | ||
9f19cc17 DG |
516 | if (channel_name == NULL) { |
517 | MSG("Channels:\n-------------"); | |
518 | } | |
519 | ||
520 | for (i = 0; i < count; i++) { | |
521 | if (channel_name != NULL) { | |
522 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
523 | chan_found = 1; | |
524 | } else { | |
525 | continue; | |
526 | } | |
527 | } | |
528 | print_channel(&channels[i]); | |
529 | ||
530 | /* Listing events per channel */ | |
cd80958d | 531 | ret = list_events(channels[i].name); |
9f19cc17 | 532 | if (ret < 0) { |
9a745bc7 | 533 | MSG("%s", lttng_strerror(ret)); |
9f19cc17 DG |
534 | } |
535 | ||
536 | if (chan_found) { | |
537 | break; | |
f3ed775e | 538 | } |
f3ed775e DG |
539 | } |
540 | ||
9f19cc17 | 541 | if (!chan_found && channel_name != NULL) { |
ae856491 DG |
542 | ERR("Channel %s not found", channel_name); |
543 | goto error; | |
9f19cc17 | 544 | } |
f3ed775e | 545 | |
9f19cc17 | 546 | ret = CMD_SUCCESS; |
f3ed775e DG |
547 | |
548 | error: | |
ae856491 DG |
549 | free(channels); |
550 | ||
551 | error_channels: | |
f3ed775e DG |
552 | return ret; |
553 | } | |
554 | ||
555 | /* | |
9f19cc17 | 556 | * List available tracing session. List only basic information. |
f3ed775e | 557 | * |
9f19cc17 | 558 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 559 | */ |
9f19cc17 | 560 | static int list_sessions(const char *session_name) |
f3ed775e | 561 | { |
9f19cc17 DG |
562 | int ret, count, i; |
563 | unsigned int session_found = 0; | |
564 | struct lttng_session *sessions; | |
565 | ||
566 | count = lttng_list_sessions(&sessions); | |
567 | DBG("Session count %d", count); | |
568 | if (count < 0) { | |
569 | ret = count; | |
570 | goto error; | |
d32fb093 DG |
571 | } else if (count == 0) { |
572 | MSG("Currently no available tracing session"); | |
573 | goto end; | |
9f19cc17 DG |
574 | } |
575 | ||
576 | if (session_name == NULL) { | |
577 | MSG("Available tracing sessions:"); | |
578 | } | |
579 | ||
580 | for (i = 0; i < count; i++) { | |
581 | if (session_name != NULL) { | |
582 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
583 | session_found = 1; | |
464dd62d | 584 | MSG("Tracing session %s:%s", session_name, active_string(sessions[i].enabled)); |
9f19cc17 DG |
585 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); |
586 | break; | |
587 | } | |
cd80958d | 588 | continue; |
9f19cc17 DG |
589 | } |
590 | ||
b6913340 DG |
591 | MSG(" %d) %s (%s)%s", i + 1, sessions[i].name, sessions[i].path, |
592 | active_string(sessions[i].enabled)); | |
9f19cc17 DG |
593 | |
594 | if (session_found) { | |
595 | break; | |
596 | } | |
597 | } | |
598 | ||
599 | free(sessions); | |
600 | ||
601 | if (!session_found && session_name != NULL) { | |
b6913340 DG |
602 | ERR("Session '%s' not found", session_name); |
603 | ret = CMD_ERROR; | |
604 | goto error; | |
9f19cc17 DG |
605 | } |
606 | ||
607 | if (session_name == NULL) { | |
6e0de39b | 608 | MSG("\nUse lttng list <session_name> for more details"); |
9f19cc17 | 609 | } |
f3ed775e | 610 | |
d32fb093 | 611 | end: |
f3ed775e DG |
612 | return CMD_SUCCESS; |
613 | ||
614 | error: | |
615 | return ret; | |
616 | } | |
f3ed775e DG |
617 | |
618 | /* | |
9f19cc17 | 619 | * List available domain(s) for a session. |
f3ed775e | 620 | */ |
330be774 | 621 | static int list_domains(const char *session_name) |
f3ed775e | 622 | { |
9f19cc17 DG |
623 | int i, count, ret = CMD_SUCCESS; |
624 | struct lttng_domain *domains = NULL; | |
625 | ||
626 | MSG("Domains:\n-------------"); | |
627 | ||
330be774 | 628 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 DG |
629 | if (count < 0) { |
630 | ret = count; | |
631 | goto error; | |
632 | } else if (count == 0) { | |
633 | MSG(" None"); | |
634 | goto end; | |
635 | } | |
636 | ||
637 | for (i = 0; i < count; i++) { | |
638 | switch (domains[i].type) { | |
639 | case LTTNG_DOMAIN_KERNEL: | |
640 | MSG(" - Kernel"); | |
b551a063 DG |
641 | break; |
642 | case LTTNG_DOMAIN_UST: | |
643 | MSG(" - UST global"); | |
644 | break; | |
9f19cc17 DG |
645 | default: |
646 | break; | |
647 | } | |
648 | } | |
649 | ||
650 | end: | |
651 | free(domains); | |
652 | ||
653 | error: | |
654 | return ret; | |
f3ed775e | 655 | } |
f3ed775e DG |
656 | |
657 | /* | |
9f19cc17 | 658 | * The 'list <options>' first level command |
f3ed775e DG |
659 | */ |
660 | int cmd_list(int argc, const char **argv) | |
661 | { | |
9f19cc17 | 662 | int opt, i, ret = CMD_SUCCESS; |
c3919711 | 663 | int nb_domain; |
9f19cc17 | 664 | const char *session_name; |
f3ed775e | 665 | static poptContext pc; |
9f19cc17 DG |
666 | struct lttng_domain domain; |
667 | struct lttng_domain *domains = NULL; | |
f3ed775e | 668 | |
441c16a7 MD |
669 | memset(&domain, 0, sizeof(domain)); |
670 | ||
9f19cc17 | 671 | if (argc < 1) { |
f3ed775e | 672 | usage(stderr); |
ca1c3607 | 673 | ret = CMD_ERROR; |
f3ed775e DG |
674 | goto end; |
675 | } | |
676 | ||
677 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
678 | poptReadDefaultConfig(pc, 0); | |
679 | ||
680 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
681 | switch (opt) { | |
682 | case OPT_HELP: | |
ca1c3607 | 683 | usage(stdout); |
f3ed775e | 684 | goto end; |
eeac7d46 MD |
685 | case OPT_USERSPACE: |
686 | opt_userspace = 1; | |
eeac7d46 | 687 | break; |
679b4943 SM |
688 | case OPT_LIST_OPTIONS: |
689 | list_cmd_options(stdout, long_options); | |
679b4943 | 690 | goto end; |
f3ed775e DG |
691 | default: |
692 | usage(stderr); | |
693 | ret = CMD_UNDEFINED; | |
694 | goto end; | |
695 | } | |
696 | } | |
697 | ||
9f19cc17 DG |
698 | /* Get session name (trailing argument) */ |
699 | session_name = poptGetArg(pc); | |
b551a063 | 700 | DBG2("Session name: %s", session_name); |
9f19cc17 | 701 | |
cd80958d DG |
702 | if (opt_kernel) { |
703 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
704 | } else if (opt_userspace) { |
705 | DBG2("Listing userspace global domain"); | |
706 | domain.type = LTTNG_DOMAIN_UST; | |
cd80958d DG |
707 | } |
708 | ||
aa5de748 MD |
709 | if (opt_kernel || opt_userspace) { |
710 | handle = lttng_create_handle(session_name, &domain); | |
711 | if (handle == NULL) { | |
712 | ret = CMD_FATAL; | |
713 | goto end; | |
714 | } | |
cd80958d DG |
715 | } |
716 | ||
9f19cc17 | 717 | if (session_name == NULL) { |
b551a063 DG |
718 | if (!opt_kernel && !opt_userspace) { |
719 | ret = list_sessions(NULL); | |
b6913340 | 720 | if (ret != 0) { |
b551a063 DG |
721 | goto end; |
722 | } | |
723 | } | |
9f19cc17 DG |
724 | if (opt_kernel) { |
725 | ret = list_kernel_events(); | |
726 | if (ret < 0) { | |
727 | goto end; | |
728 | } | |
b551a063 DG |
729 | } |
730 | if (opt_userspace) { | |
f37d259d MD |
731 | if (opt_fields) { |
732 | ret = list_ust_event_fields(); | |
733 | } else { | |
734 | ret = list_ust_events(); | |
735 | } | |
9f19cc17 DG |
736 | if (ret < 0) { |
737 | goto end; | |
738 | } | |
739 | } | |
740 | } else { | |
741 | /* List session attributes */ | |
742 | ret = list_sessions(session_name); | |
b6913340 | 743 | if (ret != 0) { |
9f19cc17 DG |
744 | goto end; |
745 | } | |
746 | ||
747 | /* Domain listing */ | |
748 | if (opt_domain) { | |
330be774 | 749 | ret = list_domains(session_name); |
9f19cc17 DG |
750 | goto end; |
751 | } | |
752 | ||
753 | if (opt_kernel) { | |
9f19cc17 | 754 | /* Channel listing */ |
cd80958d | 755 | ret = list_channels(opt_channel); |
9f19cc17 DG |
756 | if (ret < 0) { |
757 | goto end; | |
758 | } | |
9f19cc17 DG |
759 | } else { |
760 | /* We want all domain(s) */ | |
330be774 | 761 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 762 | if (nb_domain < 0) { |
67635185 | 763 | ret = nb_domain; |
9f19cc17 DG |
764 | goto end; |
765 | } | |
766 | ||
b551a063 | 767 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
768 | switch (domains[i].type) { |
769 | case LTTNG_DOMAIN_KERNEL: | |
770 | MSG("=== Domain: Kernel ===\n"); | |
771 | break; | |
b551a063 DG |
772 | case LTTNG_DOMAIN_UST: |
773 | MSG("=== Domain: UST global ===\n"); | |
774 | break; | |
9f19cc17 DG |
775 | default: |
776 | MSG("=== Domain: Unimplemented ===\n"); | |
777 | break; | |
778 | } | |
779 | ||
cd80958d | 780 | /* Clean handle before creating a new one */ |
aa5de748 MD |
781 | if (handle) { |
782 | lttng_destroy_handle(handle); | |
783 | } | |
cd80958d DG |
784 | |
785 | handle = lttng_create_handle(session_name, &domains[i]); | |
786 | if (handle == NULL) { | |
ca1c3607 | 787 | ret = CMD_FATAL; |
cd80958d DG |
788 | goto end; |
789 | } | |
790 | ||
791 | ret = list_channels(opt_channel); | |
9f19cc17 DG |
792 | if (ret < 0) { |
793 | goto end; | |
794 | } | |
795 | } | |
796 | } | |
f3ed775e DG |
797 | } |
798 | ||
799 | end: | |
9f19cc17 DG |
800 | if (domains) { |
801 | free(domains); | |
802 | } | |
aa5de748 MD |
803 | if (handle) { |
804 | lttng_destroy_handle(handle); | |
805 | } | |
cd80958d | 806 | |
ca1c3607 | 807 | poptFreeContext(pc); |
f3ed775e DG |
808 | return ret; |
809 | } |