Commit | Line | Data |
---|---|---|
f3ed775e DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
82a3637f DG |
6 | * as published by the Free Software Foundation; only version 2 |
7 | * of the License. | |
f3ed775e DG |
8 | * |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | */ | |
18 | ||
19 | #define _GNU_SOURCE | |
9f19cc17 | 20 | #include <inttypes.h> |
f3ed775e DG |
21 | #include <popt.h> |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
7a3d1328 | 25 | #include <assert.h> |
f3ed775e | 26 | |
c399183f | 27 | #include "../command.h" |
f3ed775e | 28 | |
9f19cc17 DG |
29 | static int opt_userspace; |
30 | static int opt_kernel; | |
31 | static char *opt_channel; | |
32 | static int opt_domain; | |
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}, | |
679b4943 | 64 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
f3ed775e DG |
65 | {0, 0, 0, 0, 0, 0, 0} |
66 | }; | |
67 | ||
68 | /* | |
69 | * usage | |
70 | */ | |
71 | static void usage(FILE *ofp) | |
72 | { | |
27221701 | 73 | fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [<OPTIONS>]]\n"); |
9f19cc17 DG |
74 | fprintf(ofp, "\n"); |
75 | fprintf(ofp, "With no arguments, list available tracing session(s)\n"); | |
76 | fprintf(ofp, "\n"); | |
27221701 DG |
77 | fprintf(ofp, "Without a session, -k lists available kernel events\n"); |
78 | fprintf(ofp, "Without a session, -u lists available userspace events\n"); | |
9f19cc17 DG |
79 | fprintf(ofp, "\n"); |
80 | fprintf(ofp, " -h, --help Show this help\n"); | |
27221701 | 81 | fprintf(ofp, " --list-options Simple listing of options\n"); |
9f19cc17 DG |
82 | fprintf(ofp, " -k, --kernel Select kernel domain\n"); |
83 | fprintf(ofp, " -u, --userspace Select user-space domain.\n"); | |
d78d6610 | 84 | #if 0 |
9f19cc17 | 85 | fprintf(ofp, " -p, --pid PID List user-space events by PID\n"); |
d78d6610 | 86 | #endif |
f3ed775e | 87 | fprintf(ofp, "\n"); |
27221701 | 88 | fprintf(ofp, "Session Options:\n"); |
9f19cc17 DG |
89 | fprintf(ofp, " -c, --channel NAME List details of a channel\n"); |
90 | fprintf(ofp, " -d, --domain List available domain(s)\n"); | |
f3ed775e DG |
91 | fprintf(ofp, "\n"); |
92 | } | |
93 | ||
94 | /* | |
9f19cc17 | 95 | * Get command line from /proc for a specific pid. |
f3ed775e | 96 | * |
9f19cc17 DG |
97 | * On success, return an allocated string pointer to the proc cmdline. |
98 | * On error, return NULL. | |
f3ed775e DG |
99 | */ |
100 | static char *get_cmdline_by_pid(pid_t pid) | |
101 | { | |
102 | int ret; | |
103 | FILE *fp; | |
104 | char *cmdline = NULL; | |
105 | char path[24]; /* Can't go bigger than /proc/65535/cmdline */ | |
106 | ||
107 | snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); | |
108 | fp = fopen(path, "r"); | |
109 | if (fp == NULL) { | |
110 | goto end; | |
111 | } | |
112 | ||
113 | /* Caller must free() *cmdline */ | |
114 | cmdline = malloc(PATH_MAX); | |
115 | ret = fread(cmdline, 1, PATH_MAX, fp); | |
f40799e8 DG |
116 | if (ret < 0) { |
117 | perror("fread proc list"); | |
118 | } | |
f3ed775e DG |
119 | fclose(fp); |
120 | ||
121 | end: | |
122 | return cmdline; | |
123 | } | |
b551a063 | 124 | |
464dd62d MD |
125 | static |
126 | const char *active_string(int value) | |
127 | { | |
128 | switch (value) { | |
b09f0429 MD |
129 | case 0: return " [inactive]"; |
130 | case 1: return " [active]"; | |
464dd62d MD |
131 | case -1: return ""; |
132 | default: return NULL; | |
133 | } | |
134 | } | |
135 | ||
136 | static | |
137 | const char *enabled_string(int value) | |
138 | { | |
139 | switch (value) { | |
b09f0429 MD |
140 | case 0: return " [disabled]"; |
141 | case 1: return " [enabled]"; | |
464dd62d MD |
142 | case -1: return ""; |
143 | default: return NULL; | |
144 | } | |
145 | } | |
146 | ||
81afa345 | 147 | static |
8005f29a | 148 | const char *loglevel_string_pre(int loglevel) |
81afa345 | 149 | { |
8005f29a | 150 | if (loglevel == -1) { |
81afa345 | 151 | return ""; |
e4baff1e | 152 | } else { |
81afa345 | 153 | return " (loglevel: "; |
e4baff1e | 154 | } |
81afa345 MD |
155 | } |
156 | ||
157 | static | |
8005f29a | 158 | const char *loglevel_string_post(int loglevel) |
81afa345 | 159 | { |
8005f29a | 160 | if (loglevel == -1) { |
81afa345 | 161 | return ""; |
e4baff1e | 162 | } else { |
81afa345 | 163 | return ")"; |
e4baff1e | 164 | } |
81afa345 MD |
165 | } |
166 | ||
8005f29a MD |
167 | static const char *loglevel_string(int value) |
168 | { | |
169 | switch (value) { | |
170 | case -1: return ""; | |
171 | case 0: return "TRACE_EMERG"; | |
172 | case 1: return "TRACE_ALERT"; | |
173 | case 2: return "TRACE_CRIT"; | |
174 | case 3: return "TRACE_ERR"; | |
175 | case 4: return "TRACE_WARNING"; | |
176 | case 5: return "TRACE_NOTICE"; | |
177 | case 6: return "TRACE_INFO"; | |
46839cc2 MD |
178 | case 7: return "TRACE_DEBUG_SYSTEM"; |
179 | case 8: return "TRACE_DEBUG_PROGRAM"; | |
180 | case 9: return "TRACE_DEBUG_PROCESS"; | |
181 | case 10: return "TRACE_DEBUG_MODULE"; | |
182 | case 11: return "TRACE_DEBUG_UNIT"; | |
183 | case 12: return "TRACE_DEBUG_FUNCTION"; | |
184 | case 13: return "TRACE_DEBUG_LINE"; | |
185 | case 14: return "TRACE_DEBUG"; | |
8005f29a MD |
186 | default: return "<<UNKNOWN>>"; |
187 | } | |
188 | } | |
189 | ||
b551a063 DG |
190 | /* |
191 | * Pretty print single event. | |
192 | */ | |
193 | static void print_events(struct lttng_event *event) | |
194 | { | |
195 | switch (event->type) { | |
196 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 197 | { |
401d092f | 198 | MSG("%s%s%s%s%s (type: tracepoint)%s", indent6, |
81afa345 MD |
199 | event->name, |
200 | loglevel_string_pre(event->loglevel), | |
8005f29a | 201 | loglevel_string(event->loglevel), |
81afa345 MD |
202 | loglevel_string_post(event->loglevel), |
203 | enabled_string(event->enabled)); | |
b551a063 | 204 | break; |
e4baff1e | 205 | } |
b551a063 | 206 | case LTTNG_EVENT_PROBE: |
464dd62d MD |
207 | MSG("%s%s (type: probe)%s", indent6, |
208 | event->name, enabled_string(event->enabled)); | |
b551a063 DG |
209 | if (event->attr.probe.addr != 0) { |
210 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
211 | } else { | |
212 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
213 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
214 | } | |
215 | break; | |
216 | case LTTNG_EVENT_FUNCTION: | |
217 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
464dd62d MD |
218 | MSG("%s%s (type: function)%s", indent6, |
219 | event->name, enabled_string(event->enabled)); | |
b551a063 DG |
220 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
221 | break; | |
222 | case LTTNG_EVENT_SYSCALL: | |
2c425ff7 | 223 | MSG("%ssyscalls (type: syscall)%s", indent6, |
464dd62d | 224 | enabled_string(event->enabled)); |
b551a063 DG |
225 | break; |
226 | case LTTNG_EVENT_NOOP: | |
464dd62d MD |
227 | MSG("%s (type: noop)%s", indent6, |
228 | enabled_string(event->enabled)); | |
b551a063 DG |
229 | break; |
230 | case LTTNG_EVENT_ALL: | |
231 | /* We should never have "all" events in list. */ | |
232 | assert(0); | |
233 | break; | |
234 | } | |
235 | } | |
236 | ||
237 | /* | |
238 | * Ask session daemon for all user space tracepoints available. | |
239 | */ | |
240 | static int list_ust_events(void) | |
241 | { | |
242 | int i, size; | |
243 | struct lttng_domain domain; | |
244 | struct lttng_handle *handle; | |
245 | struct lttng_event *event_list; | |
246 | pid_t cur_pid = 0; | |
247 | ||
441c16a7 MD |
248 | memset(&domain, 0, sizeof(domain)); |
249 | ||
b551a063 DG |
250 | DBG("Getting UST tracing events"); |
251 | ||
252 | domain.type = LTTNG_DOMAIN_UST; | |
253 | ||
254 | handle = lttng_create_handle(NULL, &domain); | |
255 | if (handle == NULL) { | |
256 | goto error; | |
257 | } | |
258 | ||
259 | size = lttng_list_tracepoints(handle, &event_list); | |
260 | if (size < 0) { | |
261 | ERR("Unable to list UST events"); | |
ef021732 | 262 | lttng_destroy_handle(handle); |
b551a063 DG |
263 | return size; |
264 | } | |
265 | ||
266 | MSG("UST events:\n-------------"); | |
267 | ||
268 | if (size == 0) { | |
269 | MSG("None"); | |
270 | } | |
271 | ||
272 | for (i = 0; i < size; i++) { | |
273 | if (cur_pid != event_list[i].pid) { | |
274 | cur_pid = event_list[i].pid; | |
275 | MSG("\nPID: %d - Name: %s", cur_pid, get_cmdline_by_pid(cur_pid)); | |
276 | } | |
277 | print_events(&event_list[i]); | |
278 | } | |
279 | ||
280 | MSG(""); | |
281 | ||
282 | free(event_list); | |
ef021732 | 283 | lttng_destroy_handle(handle); |
b551a063 DG |
284 | |
285 | return CMD_SUCCESS; | |
286 | ||
287 | error: | |
ef021732 | 288 | lttng_destroy_handle(handle); |
b551a063 DG |
289 | return -1; |
290 | } | |
f3ed775e DG |
291 | |
292 | /* | |
9f19cc17 | 293 | * Ask for all trace events in the kernel and pretty print them. |
f3ed775e | 294 | */ |
9f19cc17 | 295 | static int list_kernel_events(void) |
f3ed775e | 296 | { |
9f19cc17 | 297 | int i, size; |
b551a063 DG |
298 | struct lttng_domain domain; |
299 | struct lttng_handle *handle; | |
9f19cc17 | 300 | struct lttng_event *event_list; |
f3ed775e | 301 | |
441c16a7 MD |
302 | memset(&domain, 0, sizeof(domain)); |
303 | ||
b551a063 DG |
304 | DBG("Getting kernel tracing events"); |
305 | ||
306 | domain.type = LTTNG_DOMAIN_KERNEL; | |
307 | ||
308 | handle = lttng_create_handle(NULL, &domain); | |
309 | if (handle == NULL) { | |
310 | goto error; | |
311 | } | |
f3ed775e | 312 | |
cd80958d | 313 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 DG |
314 | if (size < 0) { |
315 | ERR("Unable to list kernel events"); | |
ef021732 | 316 | lttng_destroy_handle(handle); |
9f19cc17 | 317 | return size; |
f3ed775e DG |
318 | } |
319 | ||
9f19cc17 | 320 | MSG("Kernel events:\n-------------"); |
f3ed775e | 321 | |
9f19cc17 | 322 | for (i = 0; i < size; i++) { |
b551a063 | 323 | print_events(&event_list[i]); |
f3ed775e DG |
324 | } |
325 | ||
b551a063 DG |
326 | MSG(""); |
327 | ||
f3ed775e DG |
328 | free(event_list); |
329 | ||
ef021732 | 330 | lttng_destroy_handle(handle); |
f3ed775e | 331 | return CMD_SUCCESS; |
b551a063 DG |
332 | |
333 | error: | |
ef021732 | 334 | lttng_destroy_handle(handle); |
b551a063 | 335 | return -1; |
f3ed775e DG |
336 | } |
337 | ||
338 | /* | |
9f19cc17 | 339 | * List events of channel of session and domain. |
f3ed775e | 340 | */ |
cd80958d | 341 | static int list_events(const char *channel_name) |
f3ed775e DG |
342 | { |
343 | int ret, count, i; | |
9f19cc17 | 344 | struct lttng_event *events = NULL; |
f3ed775e | 345 | |
cd80958d | 346 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e DG |
347 | if (count < 0) { |
348 | ret = count; | |
349 | goto error; | |
350 | } | |
351 | ||
9f19cc17 DG |
352 | MSG("\n%sEvents:", indent4); |
353 | if (count == 0) { | |
5edd7e09 | 354 | MSG("%sNone\n", indent6); |
9f19cc17 DG |
355 | goto end; |
356 | } | |
357 | ||
f3ed775e | 358 | for (i = 0; i < count; i++) { |
b551a063 | 359 | print_events(&events[i]); |
f3ed775e DG |
360 | } |
361 | ||
9f19cc17 | 362 | MSG(""); |
f3ed775e | 363 | |
9f19cc17 DG |
364 | end: |
365 | if (events) { | |
366 | free(events); | |
367 | } | |
368 | ret = CMD_SUCCESS; | |
f3ed775e DG |
369 | |
370 | error: | |
371 | return ret; | |
372 | } | |
373 | ||
374 | /* | |
9f19cc17 DG |
375 | * Pretty print channel |
376 | */ | |
377 | static void print_channel(struct lttng_channel *channel) | |
378 | { | |
464dd62d | 379 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
380 | |
381 | MSG("%sAttributes:", indent4); | |
382 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); | |
383 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
384 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); | |
385 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); | |
386 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
387 | switch (channel->attr.output) { | |
388 | case LTTNG_EVENT_SPLICE: | |
389 | MSG("%soutput: splice()", indent6); | |
390 | break; | |
391 | case LTTNG_EVENT_MMAP: | |
392 | MSG("%soutput: mmap()", indent6); | |
393 | break; | |
394 | } | |
395 | } | |
396 | ||
397 | /* | |
398 | * List channel(s) of session and domain. | |
f3ed775e | 399 | * |
9f19cc17 | 400 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 401 | */ |
cd80958d | 402 | static int list_channels(const char *channel_name) |
f3ed775e | 403 | { |
9f19cc17 DG |
404 | int count, i, ret = CMD_SUCCESS; |
405 | unsigned int chan_found = 0; | |
406 | struct lttng_channel *channels = NULL; | |
f3ed775e | 407 | |
3e25cb20 | 408 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 409 | |
cd80958d | 410 | count = lttng_list_channels(handle, &channels); |
f3ed775e DG |
411 | if (count < 0) { |
412 | ret = count; | |
ae856491 | 413 | goto error_channels; |
9f19cc17 | 414 | } else if (count == 0) { |
ae856491 DG |
415 | ERR("Channel %s not found", channel_name); |
416 | goto error; | |
f3ed775e DG |
417 | } |
418 | ||
9f19cc17 DG |
419 | if (channel_name == NULL) { |
420 | MSG("Channels:\n-------------"); | |
421 | } | |
422 | ||
423 | for (i = 0; i < count; i++) { | |
424 | if (channel_name != NULL) { | |
425 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
426 | chan_found = 1; | |
427 | } else { | |
428 | continue; | |
429 | } | |
430 | } | |
431 | print_channel(&channels[i]); | |
432 | ||
433 | /* Listing events per channel */ | |
cd80958d | 434 | ret = list_events(channels[i].name); |
9f19cc17 | 435 | if (ret < 0) { |
9a745bc7 | 436 | MSG("%s", lttng_strerror(ret)); |
9f19cc17 DG |
437 | } |
438 | ||
439 | if (chan_found) { | |
440 | break; | |
f3ed775e | 441 | } |
f3ed775e DG |
442 | } |
443 | ||
9f19cc17 | 444 | if (!chan_found && channel_name != NULL) { |
ae856491 DG |
445 | ERR("Channel %s not found", channel_name); |
446 | goto error; | |
9f19cc17 | 447 | } |
f3ed775e | 448 | |
9f19cc17 | 449 | ret = CMD_SUCCESS; |
f3ed775e DG |
450 | |
451 | error: | |
ae856491 DG |
452 | free(channels); |
453 | ||
454 | error_channels: | |
f3ed775e DG |
455 | return ret; |
456 | } | |
457 | ||
458 | /* | |
9f19cc17 | 459 | * List available tracing session. List only basic information. |
f3ed775e | 460 | * |
9f19cc17 | 461 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 462 | */ |
9f19cc17 | 463 | static int list_sessions(const char *session_name) |
f3ed775e | 464 | { |
9f19cc17 DG |
465 | int ret, count, i; |
466 | unsigned int session_found = 0; | |
467 | struct lttng_session *sessions; | |
468 | ||
469 | count = lttng_list_sessions(&sessions); | |
470 | DBG("Session count %d", count); | |
471 | if (count < 0) { | |
472 | ret = count; | |
473 | goto error; | |
474 | } | |
475 | ||
476 | if (session_name == NULL) { | |
477 | MSG("Available tracing sessions:"); | |
478 | } | |
479 | ||
480 | for (i = 0; i < count; i++) { | |
481 | if (session_name != NULL) { | |
482 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
483 | session_found = 1; | |
464dd62d | 484 | MSG("Tracing session %s:%s", session_name, active_string(sessions[i].enabled)); |
9f19cc17 DG |
485 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); |
486 | break; | |
487 | } | |
cd80958d | 488 | continue; |
9f19cc17 DG |
489 | } |
490 | ||
b6913340 DG |
491 | MSG(" %d) %s (%s)%s", i + 1, sessions[i].name, sessions[i].path, |
492 | active_string(sessions[i].enabled)); | |
9f19cc17 DG |
493 | |
494 | if (session_found) { | |
495 | break; | |
496 | } | |
497 | } | |
498 | ||
499 | free(sessions); | |
500 | ||
501 | if (!session_found && session_name != NULL) { | |
b6913340 DG |
502 | ERR("Session '%s' not found", session_name); |
503 | ret = CMD_ERROR; | |
504 | goto error; | |
9f19cc17 DG |
505 | } |
506 | ||
507 | if (session_name == NULL) { | |
6e0de39b | 508 | MSG("\nUse lttng list <session_name> for more details"); |
9f19cc17 | 509 | } |
f3ed775e DG |
510 | |
511 | return CMD_SUCCESS; | |
512 | ||
513 | error: | |
514 | return ret; | |
515 | } | |
f3ed775e DG |
516 | |
517 | /* | |
9f19cc17 | 518 | * List available domain(s) for a session. |
f3ed775e | 519 | */ |
330be774 | 520 | static int list_domains(const char *session_name) |
f3ed775e | 521 | { |
9f19cc17 DG |
522 | int i, count, ret = CMD_SUCCESS; |
523 | struct lttng_domain *domains = NULL; | |
524 | ||
525 | MSG("Domains:\n-------------"); | |
526 | ||
330be774 | 527 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 DG |
528 | if (count < 0) { |
529 | ret = count; | |
530 | goto error; | |
531 | } else if (count == 0) { | |
532 | MSG(" None"); | |
533 | goto end; | |
534 | } | |
535 | ||
536 | for (i = 0; i < count; i++) { | |
537 | switch (domains[i].type) { | |
538 | case LTTNG_DOMAIN_KERNEL: | |
539 | MSG(" - Kernel"); | |
b551a063 DG |
540 | break; |
541 | case LTTNG_DOMAIN_UST: | |
542 | MSG(" - UST global"); | |
543 | break; | |
9f19cc17 DG |
544 | default: |
545 | break; | |
546 | } | |
547 | } | |
548 | ||
549 | end: | |
550 | free(domains); | |
551 | ||
552 | error: | |
553 | return ret; | |
f3ed775e | 554 | } |
f3ed775e DG |
555 | |
556 | /* | |
9f19cc17 | 557 | * The 'list <options>' first level command |
f3ed775e DG |
558 | */ |
559 | int cmd_list(int argc, const char **argv) | |
560 | { | |
9f19cc17 | 561 | int opt, i, ret = CMD_SUCCESS; |
c3919711 | 562 | int nb_domain; |
9f19cc17 | 563 | const char *session_name; |
f3ed775e | 564 | static poptContext pc; |
9f19cc17 DG |
565 | struct lttng_domain domain; |
566 | struct lttng_domain *domains = NULL; | |
f3ed775e | 567 | |
441c16a7 MD |
568 | memset(&domain, 0, sizeof(domain)); |
569 | ||
9f19cc17 | 570 | if (argc < 1) { |
f3ed775e | 571 | usage(stderr); |
ca1c3607 | 572 | ret = CMD_ERROR; |
f3ed775e DG |
573 | goto end; |
574 | } | |
575 | ||
576 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
577 | poptReadDefaultConfig(pc, 0); | |
578 | ||
579 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
580 | switch (opt) { | |
581 | case OPT_HELP: | |
ca1c3607 | 582 | usage(stdout); |
f3ed775e | 583 | goto end; |
eeac7d46 MD |
584 | case OPT_USERSPACE: |
585 | opt_userspace = 1; | |
eeac7d46 | 586 | break; |
679b4943 SM |
587 | case OPT_LIST_OPTIONS: |
588 | list_cmd_options(stdout, long_options); | |
679b4943 | 589 | goto end; |
f3ed775e DG |
590 | default: |
591 | usage(stderr); | |
592 | ret = CMD_UNDEFINED; | |
593 | goto end; | |
594 | } | |
595 | } | |
596 | ||
9f19cc17 DG |
597 | /* Get session name (trailing argument) */ |
598 | session_name = poptGetArg(pc); | |
b551a063 | 599 | DBG2("Session name: %s", session_name); |
9f19cc17 | 600 | |
cd80958d DG |
601 | if (opt_kernel) { |
602 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
603 | } else if (opt_userspace) { |
604 | DBG2("Listing userspace global domain"); | |
605 | domain.type = LTTNG_DOMAIN_UST; | |
cd80958d DG |
606 | } |
607 | ||
aa5de748 MD |
608 | if (opt_kernel || opt_userspace) { |
609 | handle = lttng_create_handle(session_name, &domain); | |
610 | if (handle == NULL) { | |
611 | ret = CMD_FATAL; | |
612 | goto end; | |
613 | } | |
cd80958d DG |
614 | } |
615 | ||
9f19cc17 | 616 | if (session_name == NULL) { |
b551a063 DG |
617 | if (!opt_kernel && !opt_userspace) { |
618 | ret = list_sessions(NULL); | |
b6913340 | 619 | if (ret != 0) { |
b551a063 DG |
620 | goto end; |
621 | } | |
622 | } | |
9f19cc17 DG |
623 | if (opt_kernel) { |
624 | ret = list_kernel_events(); | |
625 | if (ret < 0) { | |
626 | goto end; | |
627 | } | |
b551a063 DG |
628 | } |
629 | if (opt_userspace) { | |
630 | ret = list_ust_events(); | |
9f19cc17 DG |
631 | if (ret < 0) { |
632 | goto end; | |
633 | } | |
634 | } | |
635 | } else { | |
636 | /* List session attributes */ | |
637 | ret = list_sessions(session_name); | |
b6913340 | 638 | if (ret != 0) { |
9f19cc17 DG |
639 | goto end; |
640 | } | |
641 | ||
642 | /* Domain listing */ | |
643 | if (opt_domain) { | |
330be774 | 644 | ret = list_domains(session_name); |
9f19cc17 DG |
645 | goto end; |
646 | } | |
647 | ||
648 | if (opt_kernel) { | |
9f19cc17 | 649 | /* Channel listing */ |
cd80958d | 650 | ret = list_channels(opt_channel); |
9f19cc17 DG |
651 | if (ret < 0) { |
652 | goto end; | |
653 | } | |
9f19cc17 DG |
654 | } else { |
655 | /* We want all domain(s) */ | |
330be774 | 656 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 657 | if (nb_domain < 0) { |
67635185 | 658 | ret = nb_domain; |
9f19cc17 DG |
659 | goto end; |
660 | } | |
661 | ||
b551a063 | 662 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
663 | switch (domains[i].type) { |
664 | case LTTNG_DOMAIN_KERNEL: | |
665 | MSG("=== Domain: Kernel ===\n"); | |
666 | break; | |
b551a063 DG |
667 | case LTTNG_DOMAIN_UST: |
668 | MSG("=== Domain: UST global ===\n"); | |
669 | break; | |
9f19cc17 DG |
670 | default: |
671 | MSG("=== Domain: Unimplemented ===\n"); | |
672 | break; | |
673 | } | |
674 | ||
cd80958d | 675 | /* Clean handle before creating a new one */ |
aa5de748 MD |
676 | if (handle) { |
677 | lttng_destroy_handle(handle); | |
678 | } | |
cd80958d DG |
679 | |
680 | handle = lttng_create_handle(session_name, &domains[i]); | |
681 | if (handle == NULL) { | |
ca1c3607 | 682 | ret = CMD_FATAL; |
cd80958d DG |
683 | goto end; |
684 | } | |
685 | ||
686 | ret = list_channels(opt_channel); | |
9f19cc17 DG |
687 | if (ret < 0) { |
688 | goto end; | |
689 | } | |
690 | } | |
691 | } | |
f3ed775e DG |
692 | } |
693 | ||
694 | end: | |
9f19cc17 DG |
695 | if (domains) { |
696 | free(domains); | |
697 | } | |
aa5de748 MD |
698 | if (handle) { |
699 | lttng_destroy_handle(handle); | |
700 | } | |
cd80958d | 701 | |
ca1c3607 | 702 | poptFreeContext(pc); |
f3ed775e DG |
703 | return ret; |
704 | } |