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 | } |
644ff458 DG |
223 | case LTTNG_EVENT_FUNCTION: |
224 | MSG("%s%s (type: function)%s%s", indent6, | |
225 | event->name, enabled_string(event->enabled), | |
226 | filter_string(event->filter)); | |
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; | |
b551a063 | 234 | case LTTNG_EVENT_PROBE: |
fceb65df MD |
235 | MSG("%s%s (type: probe)%s%s", indent6, |
236 | event->name, enabled_string(event->enabled), | |
237 | filter_string(event->filter)); | |
b551a063 DG |
238 | if (event->attr.probe.addr != 0) { |
239 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
240 | } else { | |
241 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
242 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
243 | } | |
244 | break; | |
b551a063 | 245 | case LTTNG_EVENT_FUNCTION_ENTRY: |
fceb65df MD |
246 | MSG("%s%s (type: function)%s%s", indent6, |
247 | event->name, enabled_string(event->enabled), | |
248 | filter_string(event->filter)); | |
b551a063 DG |
249 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
250 | break; | |
251 | case LTTNG_EVENT_SYSCALL: | |
fceb65df MD |
252 | MSG("%ssyscalls (type: syscall)%s%s", indent6, |
253 | enabled_string(event->enabled), | |
254 | filter_string(event->filter)); | |
b551a063 DG |
255 | break; |
256 | case LTTNG_EVENT_NOOP: | |
fceb65df MD |
257 | MSG("%s (type: noop)%s%s", indent6, |
258 | enabled_string(event->enabled), | |
259 | filter_string(event->filter)); | |
b551a063 DG |
260 | break; |
261 | case LTTNG_EVENT_ALL: | |
262 | /* We should never have "all" events in list. */ | |
263 | assert(0); | |
264 | break; | |
265 | } | |
266 | } | |
267 | ||
f37d259d MD |
268 | static const char *field_type(struct lttng_event_field *field) |
269 | { | |
270 | switch(field->type) { | |
271 | case LTTNG_EVENT_FIELD_INTEGER: | |
272 | return "integer"; | |
273 | case LTTNG_EVENT_FIELD_ENUM: | |
274 | return "enum"; | |
275 | case LTTNG_EVENT_FIELD_FLOAT: | |
276 | return "float"; | |
277 | case LTTNG_EVENT_FIELD_STRING: | |
278 | return "string"; | |
279 | case LTTNG_EVENT_FIELD_OTHER: | |
280 | default: /* fall-through */ | |
281 | return "unknown"; | |
282 | } | |
283 | } | |
284 | ||
285 | /* | |
286 | * Pretty print single event fields. | |
287 | */ | |
288 | static void print_event_field(struct lttng_event_field *field) | |
289 | { | |
290 | if (!field->field_name[0]) { | |
291 | return; | |
292 | } | |
d8fbe2a9 | 293 | MSG("%sfield: %s (%s)%s", indent8, field->field_name, |
45a32634 | 294 | field_type(field), field->nowrite ? " [no write]" : ""); |
f37d259d MD |
295 | } |
296 | ||
b551a063 DG |
297 | /* |
298 | * Ask session daemon for all user space tracepoints available. | |
299 | */ | |
300 | static int list_ust_events(void) | |
301 | { | |
302 | int i, size; | |
303 | struct lttng_domain domain; | |
304 | struct lttng_handle *handle; | |
305 | struct lttng_event *event_list; | |
306 | pid_t cur_pid = 0; | |
307 | ||
441c16a7 MD |
308 | memset(&domain, 0, sizeof(domain)); |
309 | ||
b551a063 DG |
310 | DBG("Getting UST tracing events"); |
311 | ||
312 | domain.type = LTTNG_DOMAIN_UST; | |
313 | ||
314 | handle = lttng_create_handle(NULL, &domain); | |
315 | if (handle == NULL) { | |
316 | goto error; | |
317 | } | |
318 | ||
319 | size = lttng_list_tracepoints(handle, &event_list); | |
320 | if (size < 0) { | |
321 | ERR("Unable to list UST events"); | |
ef021732 | 322 | lttng_destroy_handle(handle); |
b551a063 DG |
323 | return size; |
324 | } | |
325 | ||
326 | MSG("UST events:\n-------------"); | |
327 | ||
328 | if (size == 0) { | |
329 | MSG("None"); | |
330 | } | |
331 | ||
332 | for (i = 0; i < size; i++) { | |
333 | if (cur_pid != event_list[i].pid) { | |
334 | cur_pid = event_list[i].pid; | |
335 | MSG("\nPID: %d - Name: %s", cur_pid, get_cmdline_by_pid(cur_pid)); | |
336 | } | |
337 | print_events(&event_list[i]); | |
338 | } | |
339 | ||
340 | MSG(""); | |
341 | ||
342 | free(event_list); | |
ef021732 | 343 | lttng_destroy_handle(handle); |
b551a063 DG |
344 | |
345 | return CMD_SUCCESS; | |
346 | ||
347 | error: | |
ef021732 | 348 | lttng_destroy_handle(handle); |
b551a063 DG |
349 | return -1; |
350 | } | |
f3ed775e | 351 | |
f37d259d MD |
352 | /* |
353 | * Ask session daemon for all user space tracepoint fields available. | |
354 | */ | |
355 | static int list_ust_event_fields(void) | |
356 | { | |
357 | int i, size; | |
358 | struct lttng_domain domain; | |
359 | struct lttng_handle *handle; | |
360 | struct lttng_event_field *event_field_list; | |
361 | pid_t cur_pid = 0; | |
362 | struct lttng_event cur_event; | |
363 | ||
364 | memset(&domain, 0, sizeof(domain)); | |
365 | memset(&cur_event, 0, sizeof(cur_event)); | |
366 | ||
367 | DBG("Getting UST tracing event fields"); | |
368 | ||
369 | domain.type = LTTNG_DOMAIN_UST; | |
370 | ||
371 | handle = lttng_create_handle(NULL, &domain); | |
372 | if (handle == NULL) { | |
373 | goto error; | |
374 | } | |
375 | ||
376 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
377 | if (size < 0) { | |
378 | ERR("Unable to list UST event fields"); | |
379 | lttng_destroy_handle(handle); | |
380 | return size; | |
381 | } | |
382 | ||
383 | MSG("UST events:\n-------------"); | |
384 | ||
385 | if (size == 0) { | |
386 | MSG("None"); | |
387 | } | |
388 | ||
389 | for (i = 0; i < size; i++) { | |
390 | if (cur_pid != event_field_list[i].event.pid) { | |
391 | cur_pid = event_field_list[i].event.pid; | |
392 | MSG("\nPID: %d - Name: %s", cur_pid, get_cmdline_by_pid(cur_pid)); | |
393 | } | |
394 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
395 | print_events(&event_field_list[i].event); | |
396 | memcpy(&cur_event, &event_field_list[i].event, | |
397 | sizeof(cur_event)); | |
398 | } | |
399 | print_event_field(&event_field_list[i]); | |
400 | } | |
401 | ||
402 | MSG(""); | |
403 | ||
404 | free(event_field_list); | |
405 | lttng_destroy_handle(handle); | |
406 | ||
407 | return CMD_SUCCESS; | |
408 | ||
409 | error: | |
410 | lttng_destroy_handle(handle); | |
411 | return -1; | |
412 | } | |
413 | ||
f3ed775e | 414 | /* |
9f19cc17 | 415 | * Ask for all trace events in the kernel and pretty print them. |
f3ed775e | 416 | */ |
9f19cc17 | 417 | static int list_kernel_events(void) |
f3ed775e | 418 | { |
9f19cc17 | 419 | int i, size; |
b551a063 DG |
420 | struct lttng_domain domain; |
421 | struct lttng_handle *handle; | |
9f19cc17 | 422 | struct lttng_event *event_list; |
f3ed775e | 423 | |
441c16a7 MD |
424 | memset(&domain, 0, sizeof(domain)); |
425 | ||
b551a063 DG |
426 | DBG("Getting kernel tracing events"); |
427 | ||
428 | domain.type = LTTNG_DOMAIN_KERNEL; | |
429 | ||
430 | handle = lttng_create_handle(NULL, &domain); | |
431 | if (handle == NULL) { | |
432 | goto error; | |
433 | } | |
f3ed775e | 434 | |
cd80958d | 435 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 DG |
436 | if (size < 0) { |
437 | ERR("Unable to list kernel events"); | |
ef021732 | 438 | lttng_destroy_handle(handle); |
9f19cc17 | 439 | return size; |
f3ed775e DG |
440 | } |
441 | ||
9f19cc17 | 442 | MSG("Kernel events:\n-------------"); |
f3ed775e | 443 | |
9f19cc17 | 444 | for (i = 0; i < size; i++) { |
b551a063 | 445 | print_events(&event_list[i]); |
f3ed775e DG |
446 | } |
447 | ||
b551a063 DG |
448 | MSG(""); |
449 | ||
f3ed775e DG |
450 | free(event_list); |
451 | ||
ef021732 | 452 | lttng_destroy_handle(handle); |
f3ed775e | 453 | return CMD_SUCCESS; |
b551a063 DG |
454 | |
455 | error: | |
ef021732 | 456 | lttng_destroy_handle(handle); |
b551a063 | 457 | return -1; |
f3ed775e DG |
458 | } |
459 | ||
460 | /* | |
9f19cc17 | 461 | * List events of channel of session and domain. |
f3ed775e | 462 | */ |
cd80958d | 463 | static int list_events(const char *channel_name) |
f3ed775e DG |
464 | { |
465 | int ret, count, i; | |
9f19cc17 | 466 | struct lttng_event *events = NULL; |
f3ed775e | 467 | |
cd80958d | 468 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e DG |
469 | if (count < 0) { |
470 | ret = count; | |
471 | goto error; | |
472 | } | |
473 | ||
9f19cc17 DG |
474 | MSG("\n%sEvents:", indent4); |
475 | if (count == 0) { | |
5edd7e09 | 476 | MSG("%sNone\n", indent6); |
9f19cc17 DG |
477 | goto end; |
478 | } | |
479 | ||
f3ed775e | 480 | for (i = 0; i < count; i++) { |
b551a063 | 481 | print_events(&events[i]); |
f3ed775e DG |
482 | } |
483 | ||
9f19cc17 | 484 | MSG(""); |
f3ed775e | 485 | |
9f19cc17 DG |
486 | end: |
487 | if (events) { | |
488 | free(events); | |
489 | } | |
490 | ret = CMD_SUCCESS; | |
f3ed775e DG |
491 | |
492 | error: | |
493 | return ret; | |
494 | } | |
495 | ||
496 | /* | |
9f19cc17 DG |
497 | * Pretty print channel |
498 | */ | |
499 | static void print_channel(struct lttng_channel *channel) | |
500 | { | |
464dd62d | 501 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
502 | |
503 | MSG("%sAttributes:", indent4); | |
504 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); | |
505 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
506 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); | |
507 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); | |
508 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
509 | switch (channel->attr.output) { | |
510 | case LTTNG_EVENT_SPLICE: | |
511 | MSG("%soutput: splice()", indent6); | |
512 | break; | |
513 | case LTTNG_EVENT_MMAP: | |
514 | MSG("%soutput: mmap()", indent6); | |
515 | break; | |
516 | } | |
517 | } | |
518 | ||
519 | /* | |
520 | * List channel(s) of session and domain. | |
f3ed775e | 521 | * |
9f19cc17 | 522 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 523 | */ |
cd80958d | 524 | static int list_channels(const char *channel_name) |
f3ed775e | 525 | { |
9f19cc17 DG |
526 | int count, i, ret = CMD_SUCCESS; |
527 | unsigned int chan_found = 0; | |
528 | struct lttng_channel *channels = NULL; | |
f3ed775e | 529 | |
3e25cb20 | 530 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 531 | |
cd80958d | 532 | count = lttng_list_channels(handle, &channels); |
f3ed775e | 533 | if (count < 0) { |
c7d620a2 DG |
534 | switch (-count) { |
535 | case LTTNG_ERR_KERN_CHAN_NOT_FOUND: | |
536 | ret = CMD_SUCCESS; | |
537 | WARN("No kernel channel"); | |
538 | break; | |
539 | default: | |
540 | /* We had a real error */ | |
541 | ret = count; | |
542 | ERR("%s", lttng_strerror(ret)); | |
543 | } | |
ae856491 | 544 | goto error_channels; |
f3ed775e DG |
545 | } |
546 | ||
9f19cc17 DG |
547 | if (channel_name == NULL) { |
548 | MSG("Channels:\n-------------"); | |
549 | } | |
550 | ||
551 | for (i = 0; i < count; i++) { | |
552 | if (channel_name != NULL) { | |
553 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
554 | chan_found = 1; | |
555 | } else { | |
556 | continue; | |
557 | } | |
558 | } | |
559 | print_channel(&channels[i]); | |
560 | ||
561 | /* Listing events per channel */ | |
cd80958d | 562 | ret = list_events(channels[i].name); |
9f19cc17 | 563 | if (ret < 0) { |
9a745bc7 | 564 | MSG("%s", lttng_strerror(ret)); |
9f19cc17 DG |
565 | } |
566 | ||
567 | if (chan_found) { | |
568 | break; | |
f3ed775e | 569 | } |
f3ed775e DG |
570 | } |
571 | ||
9f19cc17 | 572 | if (!chan_found && channel_name != NULL) { |
ae856491 DG |
573 | ERR("Channel %s not found", channel_name); |
574 | goto error; | |
9f19cc17 | 575 | } |
f3ed775e | 576 | |
9f19cc17 | 577 | ret = CMD_SUCCESS; |
f3ed775e DG |
578 | |
579 | error: | |
ae856491 DG |
580 | free(channels); |
581 | ||
582 | error_channels: | |
f3ed775e DG |
583 | return ret; |
584 | } | |
585 | ||
586 | /* | |
9f19cc17 | 587 | * List available tracing session. List only basic information. |
f3ed775e | 588 | * |
9f19cc17 | 589 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 590 | */ |
9f19cc17 | 591 | static int list_sessions(const char *session_name) |
f3ed775e | 592 | { |
9f19cc17 DG |
593 | int ret, count, i; |
594 | unsigned int session_found = 0; | |
595 | struct lttng_session *sessions; | |
596 | ||
597 | count = lttng_list_sessions(&sessions); | |
598 | DBG("Session count %d", count); | |
599 | if (count < 0) { | |
600 | ret = count; | |
2e17663e | 601 | ERR("%s", lttng_strerror(ret)); |
9f19cc17 | 602 | goto error; |
d32fb093 DG |
603 | } else if (count == 0) { |
604 | MSG("Currently no available tracing session"); | |
605 | goto end; | |
9f19cc17 DG |
606 | } |
607 | ||
608 | if (session_name == NULL) { | |
609 | MSG("Available tracing sessions:"); | |
610 | } | |
611 | ||
612 | for (i = 0; i < count; i++) { | |
613 | if (session_name != NULL) { | |
614 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
615 | session_found = 1; | |
464dd62d | 616 | MSG("Tracing session %s:%s", session_name, active_string(sessions[i].enabled)); |
9f19cc17 DG |
617 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); |
618 | break; | |
619 | } | |
cd80958d | 620 | continue; |
9f19cc17 DG |
621 | } |
622 | ||
b6913340 DG |
623 | MSG(" %d) %s (%s)%s", i + 1, sessions[i].name, sessions[i].path, |
624 | active_string(sessions[i].enabled)); | |
9f19cc17 DG |
625 | |
626 | if (session_found) { | |
627 | break; | |
628 | } | |
629 | } | |
630 | ||
631 | free(sessions); | |
632 | ||
633 | if (!session_found && session_name != NULL) { | |
b6913340 DG |
634 | ERR("Session '%s' not found", session_name); |
635 | ret = CMD_ERROR; | |
636 | goto error; | |
9f19cc17 DG |
637 | } |
638 | ||
639 | if (session_name == NULL) { | |
6e0de39b | 640 | MSG("\nUse lttng list <session_name> for more details"); |
9f19cc17 | 641 | } |
f3ed775e | 642 | |
d32fb093 | 643 | end: |
f3ed775e DG |
644 | return CMD_SUCCESS; |
645 | ||
646 | error: | |
647 | return ret; | |
648 | } | |
f3ed775e DG |
649 | |
650 | /* | |
9f19cc17 | 651 | * List available domain(s) for a session. |
f3ed775e | 652 | */ |
330be774 | 653 | static int list_domains(const char *session_name) |
f3ed775e | 654 | { |
9f19cc17 DG |
655 | int i, count, ret = CMD_SUCCESS; |
656 | struct lttng_domain *domains = NULL; | |
657 | ||
658 | MSG("Domains:\n-------------"); | |
659 | ||
330be774 | 660 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 DG |
661 | if (count < 0) { |
662 | ret = count; | |
663 | goto error; | |
664 | } else if (count == 0) { | |
665 | MSG(" None"); | |
666 | goto end; | |
667 | } | |
668 | ||
669 | for (i = 0; i < count; i++) { | |
670 | switch (domains[i].type) { | |
671 | case LTTNG_DOMAIN_KERNEL: | |
672 | MSG(" - Kernel"); | |
b551a063 DG |
673 | break; |
674 | case LTTNG_DOMAIN_UST: | |
675 | MSG(" - UST global"); | |
676 | break; | |
9f19cc17 DG |
677 | default: |
678 | break; | |
679 | } | |
680 | } | |
681 | ||
682 | end: | |
683 | free(domains); | |
684 | ||
685 | error: | |
686 | return ret; | |
f3ed775e | 687 | } |
f3ed775e DG |
688 | |
689 | /* | |
9f19cc17 | 690 | * The 'list <options>' first level command |
f3ed775e DG |
691 | */ |
692 | int cmd_list(int argc, const char **argv) | |
693 | { | |
c617c0c6 | 694 | int opt, ret = CMD_SUCCESS; |
9f19cc17 | 695 | const char *session_name; |
f3ed775e | 696 | static poptContext pc; |
9f19cc17 DG |
697 | struct lttng_domain domain; |
698 | struct lttng_domain *domains = NULL; | |
f3ed775e | 699 | |
441c16a7 MD |
700 | memset(&domain, 0, sizeof(domain)); |
701 | ||
9f19cc17 | 702 | if (argc < 1) { |
f3ed775e | 703 | usage(stderr); |
ca1c3607 | 704 | ret = CMD_ERROR; |
f3ed775e DG |
705 | goto end; |
706 | } | |
707 | ||
708 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
709 | poptReadDefaultConfig(pc, 0); | |
710 | ||
711 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
712 | switch (opt) { | |
713 | case OPT_HELP: | |
ca1c3607 | 714 | usage(stdout); |
f3ed775e | 715 | goto end; |
eeac7d46 MD |
716 | case OPT_USERSPACE: |
717 | opt_userspace = 1; | |
eeac7d46 | 718 | break; |
679b4943 SM |
719 | case OPT_LIST_OPTIONS: |
720 | list_cmd_options(stdout, long_options); | |
679b4943 | 721 | goto end; |
f3ed775e DG |
722 | default: |
723 | usage(stderr); | |
724 | ret = CMD_UNDEFINED; | |
725 | goto end; | |
726 | } | |
727 | } | |
728 | ||
9f19cc17 DG |
729 | /* Get session name (trailing argument) */ |
730 | session_name = poptGetArg(pc); | |
b551a063 | 731 | DBG2("Session name: %s", session_name); |
9f19cc17 | 732 | |
cd80958d DG |
733 | if (opt_kernel) { |
734 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
735 | } else if (opt_userspace) { |
736 | DBG2("Listing userspace global domain"); | |
737 | domain.type = LTTNG_DOMAIN_UST; | |
cd80958d DG |
738 | } |
739 | ||
aa5de748 MD |
740 | if (opt_kernel || opt_userspace) { |
741 | handle = lttng_create_handle(session_name, &domain); | |
742 | if (handle == NULL) { | |
743 | ret = CMD_FATAL; | |
744 | goto end; | |
745 | } | |
cd80958d DG |
746 | } |
747 | ||
9f19cc17 | 748 | if (session_name == NULL) { |
b551a063 DG |
749 | if (!opt_kernel && !opt_userspace) { |
750 | ret = list_sessions(NULL); | |
b6913340 | 751 | if (ret != 0) { |
b551a063 DG |
752 | goto end; |
753 | } | |
754 | } | |
9f19cc17 DG |
755 | if (opt_kernel) { |
756 | ret = list_kernel_events(); | |
757 | if (ret < 0) { | |
6191db77 | 758 | ret = CMD_ERROR; |
9f19cc17 DG |
759 | goto end; |
760 | } | |
b551a063 DG |
761 | } |
762 | if (opt_userspace) { | |
f37d259d MD |
763 | if (opt_fields) { |
764 | ret = list_ust_event_fields(); | |
765 | } else { | |
766 | ret = list_ust_events(); | |
767 | } | |
9f19cc17 | 768 | if (ret < 0) { |
6191db77 | 769 | ret = CMD_ERROR; |
9f19cc17 DG |
770 | goto end; |
771 | } | |
772 | } | |
773 | } else { | |
774 | /* List session attributes */ | |
775 | ret = list_sessions(session_name); | |
b6913340 | 776 | if (ret != 0) { |
9f19cc17 DG |
777 | goto end; |
778 | } | |
779 | ||
780 | /* Domain listing */ | |
781 | if (opt_domain) { | |
330be774 | 782 | ret = list_domains(session_name); |
9f19cc17 DG |
783 | goto end; |
784 | } | |
785 | ||
786 | if (opt_kernel) { | |
9f19cc17 | 787 | /* Channel listing */ |
cd80958d | 788 | ret = list_channels(opt_channel); |
9f19cc17 DG |
789 | if (ret < 0) { |
790 | goto end; | |
791 | } | |
9f19cc17 | 792 | } else { |
c617c0c6 MD |
793 | int i, nb_domain; |
794 | ||
9f19cc17 | 795 | /* We want all domain(s) */ |
330be774 | 796 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 797 | if (nb_domain < 0) { |
67635185 | 798 | ret = nb_domain; |
9f19cc17 DG |
799 | goto end; |
800 | } | |
801 | ||
b551a063 | 802 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
803 | switch (domains[i].type) { |
804 | case LTTNG_DOMAIN_KERNEL: | |
805 | MSG("=== Domain: Kernel ===\n"); | |
806 | break; | |
b551a063 DG |
807 | case LTTNG_DOMAIN_UST: |
808 | MSG("=== Domain: UST global ===\n"); | |
809 | break; | |
9f19cc17 DG |
810 | default: |
811 | MSG("=== Domain: Unimplemented ===\n"); | |
812 | break; | |
813 | } | |
814 | ||
cd80958d | 815 | /* Clean handle before creating a new one */ |
aa5de748 MD |
816 | if (handle) { |
817 | lttng_destroy_handle(handle); | |
818 | } | |
cd80958d DG |
819 | |
820 | handle = lttng_create_handle(session_name, &domains[i]); | |
821 | if (handle == NULL) { | |
ca1c3607 | 822 | ret = CMD_FATAL; |
cd80958d DG |
823 | goto end; |
824 | } | |
825 | ||
826 | ret = list_channels(opt_channel); | |
9f19cc17 DG |
827 | if (ret < 0) { |
828 | goto end; | |
829 | } | |
830 | } | |
831 | } | |
f3ed775e DG |
832 | } |
833 | ||
834 | end: | |
9f19cc17 DG |
835 | if (domains) { |
836 | free(domains); | |
837 | } | |
aa5de748 MD |
838 | if (handle) { |
839 | lttng_destroy_handle(handle); | |
840 | } | |
cd80958d | 841 | |
ca1c3607 | 842 | poptFreeContext(pc); |
f3ed775e DG |
843 | return ret; |
844 | } |