Commit | Line | Data |
---|---|---|
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 | { | |
747361fe | 74 | fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [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) { | |
2cbf8fed DG |
131 | case 0: return "inactive"; |
132 | case 1: return "active"; | |
464dd62d MD |
133 | case -1: return ""; |
134 | default: return NULL; | |
135 | } | |
136 | } | |
137 | ||
2cbf8fed DG |
138 | static const char *snapshot_string(int value) |
139 | { | |
140 | switch (value) { | |
141 | case 1: | |
142 | return " snapshot"; | |
143 | default: | |
144 | return ""; | |
145 | } | |
146 | } | |
147 | ||
464dd62d MD |
148 | static |
149 | const char *enabled_string(int value) | |
150 | { | |
151 | switch (value) { | |
b09f0429 MD |
152 | case 0: return " [disabled]"; |
153 | case 1: return " [enabled]"; | |
464dd62d MD |
154 | case -1: return ""; |
155 | default: return NULL; | |
156 | } | |
157 | } | |
158 | ||
fceb65df MD |
159 | static |
160 | const char *filter_string(int value) | |
161 | { | |
162 | switch (value) { | |
163 | case 1: return " [with filter]"; | |
164 | default: return ""; | |
165 | } | |
166 | } | |
167 | ||
8005f29a MD |
168 | static const char *loglevel_string(int value) |
169 | { | |
170 | switch (value) { | |
255a5dab MD |
171 | case -1: |
172 | return ""; | |
173 | case LTTNG_LOGLEVEL_EMERG: | |
174 | return "TRACE_EMERG"; | |
175 | case LTTNG_LOGLEVEL_ALERT: | |
176 | return "TRACE_ALERT"; | |
177 | case LTTNG_LOGLEVEL_CRIT: | |
178 | return "TRACE_CRIT"; | |
179 | case LTTNG_LOGLEVEL_ERR: | |
180 | return "TRACE_ERR"; | |
181 | case LTTNG_LOGLEVEL_WARNING: | |
182 | return "TRACE_WARNING"; | |
183 | case LTTNG_LOGLEVEL_NOTICE: | |
184 | return "TRACE_NOTICE"; | |
185 | case LTTNG_LOGLEVEL_INFO: | |
186 | return "TRACE_INFO"; | |
187 | case LTTNG_LOGLEVEL_DEBUG_SYSTEM: | |
188 | return "TRACE_DEBUG_SYSTEM"; | |
189 | case LTTNG_LOGLEVEL_DEBUG_PROGRAM: | |
190 | return "TRACE_DEBUG_PROGRAM"; | |
191 | case LTTNG_LOGLEVEL_DEBUG_PROCESS: | |
192 | return "TRACE_DEBUG_PROCESS"; | |
193 | case LTTNG_LOGLEVEL_DEBUG_MODULE: | |
194 | return "TRACE_DEBUG_MODULE"; | |
195 | case LTTNG_LOGLEVEL_DEBUG_UNIT: | |
196 | return "TRACE_DEBUG_UNIT"; | |
197 | case LTTNG_LOGLEVEL_DEBUG_FUNCTION: | |
198 | return "TRACE_DEBUG_FUNCTION"; | |
199 | case LTTNG_LOGLEVEL_DEBUG_LINE: | |
200 | return "TRACE_DEBUG_LINE"; | |
201 | case LTTNG_LOGLEVEL_DEBUG: | |
202 | return "TRACE_DEBUG"; | |
203 | default: | |
204 | return "<<UNKNOWN>>"; | |
8005f29a MD |
205 | } |
206 | } | |
207 | ||
b551a063 DG |
208 | /* |
209 | * Pretty print single event. | |
210 | */ | |
211 | static void print_events(struct lttng_event *event) | |
212 | { | |
213 | switch (event->type) { | |
214 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 215 | { |
8b703175 | 216 | if (event->loglevel != -1) { |
fceb65df | 217 | MSG("%s%s (loglevel: %s (%d)) (type: tracepoint)%s%s", |
8b703175 | 218 | indent6, |
81afa345 | 219 | event->name, |
8005f29a | 220 | loglevel_string(event->loglevel), |
8b703175 | 221 | event->loglevel, |
fceb65df MD |
222 | enabled_string(event->enabled), |
223 | filter_string(event->filter)); | |
8b703175 | 224 | } else { |
fceb65df | 225 | MSG("%s%s (type: tracepoint)%s%s", |
8b703175 MD |
226 | indent6, |
227 | event->name, | |
fceb65df MD |
228 | enabled_string(event->enabled), |
229 | filter_string(event->filter)); | |
8b703175 | 230 | } |
b551a063 | 231 | break; |
e4baff1e | 232 | } |
1896972b DG |
233 | case LTTNG_EVENT_FUNCTION: |
234 | MSG("%s%s (type: function)%s%s", indent6, | |
235 | event->name, enabled_string(event->enabled), | |
236 | filter_string(event->filter)); | |
237 | if (event->attr.probe.addr != 0) { | |
238 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
239 | } else { | |
240 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
241 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
242 | } | |
243 | break; | |
b551a063 | 244 | case LTTNG_EVENT_PROBE: |
fceb65df MD |
245 | MSG("%s%s (type: probe)%s%s", indent6, |
246 | event->name, enabled_string(event->enabled), | |
247 | filter_string(event->filter)); | |
b551a063 DG |
248 | if (event->attr.probe.addr != 0) { |
249 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
250 | } else { | |
251 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
252 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
253 | } | |
254 | break; | |
b551a063 | 255 | case LTTNG_EVENT_FUNCTION_ENTRY: |
fceb65df MD |
256 | MSG("%s%s (type: function)%s%s", indent6, |
257 | event->name, enabled_string(event->enabled), | |
258 | filter_string(event->filter)); | |
b551a063 DG |
259 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
260 | break; | |
261 | case LTTNG_EVENT_SYSCALL: | |
fceb65df MD |
262 | MSG("%ssyscalls (type: syscall)%s%s", indent6, |
263 | enabled_string(event->enabled), | |
264 | filter_string(event->filter)); | |
b551a063 DG |
265 | break; |
266 | case LTTNG_EVENT_NOOP: | |
fceb65df MD |
267 | MSG("%s (type: noop)%s%s", indent6, |
268 | enabled_string(event->enabled), | |
269 | filter_string(event->filter)); | |
b551a063 DG |
270 | break; |
271 | case LTTNG_EVENT_ALL: | |
272 | /* We should never have "all" events in list. */ | |
273 | assert(0); | |
274 | break; | |
275 | } | |
276 | } | |
277 | ||
f37d259d MD |
278 | static const char *field_type(struct lttng_event_field *field) |
279 | { | |
280 | switch(field->type) { | |
281 | case LTTNG_EVENT_FIELD_INTEGER: | |
282 | return "integer"; | |
283 | case LTTNG_EVENT_FIELD_ENUM: | |
284 | return "enum"; | |
285 | case LTTNG_EVENT_FIELD_FLOAT: | |
286 | return "float"; | |
287 | case LTTNG_EVENT_FIELD_STRING: | |
288 | return "string"; | |
289 | case LTTNG_EVENT_FIELD_OTHER: | |
290 | default: /* fall-through */ | |
291 | return "unknown"; | |
292 | } | |
293 | } | |
294 | ||
295 | /* | |
296 | * Pretty print single event fields. | |
297 | */ | |
298 | static void print_event_field(struct lttng_event_field *field) | |
299 | { | |
300 | if (!field->field_name[0]) { | |
301 | return; | |
302 | } | |
d8fbe2a9 | 303 | MSG("%sfield: %s (%s)%s", indent8, field->field_name, |
45a32634 | 304 | field_type(field), field->nowrite ? " [no write]" : ""); |
f37d259d MD |
305 | } |
306 | ||
b551a063 DG |
307 | /* |
308 | * Ask session daemon for all user space tracepoints available. | |
309 | */ | |
310 | static int list_ust_events(void) | |
311 | { | |
312 | int i, size; | |
313 | struct lttng_domain domain; | |
314 | struct lttng_handle *handle; | |
315 | struct lttng_event *event_list; | |
316 | pid_t cur_pid = 0; | |
ea5cbc00 | 317 | char *cmdline = NULL; |
b551a063 | 318 | |
441c16a7 MD |
319 | memset(&domain, 0, sizeof(domain)); |
320 | ||
b551a063 DG |
321 | DBG("Getting UST tracing events"); |
322 | ||
323 | domain.type = LTTNG_DOMAIN_UST; | |
324 | ||
325 | handle = lttng_create_handle(NULL, &domain); | |
326 | if (handle == NULL) { | |
327 | goto error; | |
328 | } | |
329 | ||
330 | size = lttng_list_tracepoints(handle, &event_list); | |
331 | if (size < 0) { | |
60e835ca | 332 | ERR("Unable to list UST events: %s", lttng_strerror(size)); |
ef021732 | 333 | lttng_destroy_handle(handle); |
b551a063 DG |
334 | return size; |
335 | } | |
336 | ||
337 | MSG("UST events:\n-------------"); | |
338 | ||
339 | if (size == 0) { | |
340 | MSG("None"); | |
341 | } | |
342 | ||
343 | for (i = 0; i < size; i++) { | |
344 | if (cur_pid != event_list[i].pid) { | |
345 | cur_pid = event_list[i].pid; | |
ea5cbc00 CB |
346 | cmdline = get_cmdline_by_pid(cur_pid); |
347 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
348 | free(cmdline); | |
b551a063 DG |
349 | } |
350 | print_events(&event_list[i]); | |
351 | } | |
352 | ||
353 | MSG(""); | |
354 | ||
355 | free(event_list); | |
ef021732 | 356 | lttng_destroy_handle(handle); |
b551a063 DG |
357 | |
358 | return CMD_SUCCESS; | |
359 | ||
360 | error: | |
ef021732 | 361 | lttng_destroy_handle(handle); |
b551a063 DG |
362 | return -1; |
363 | } | |
f3ed775e | 364 | |
f37d259d MD |
365 | /* |
366 | * Ask session daemon for all user space tracepoint fields available. | |
367 | */ | |
368 | static int list_ust_event_fields(void) | |
369 | { | |
370 | int i, size; | |
371 | struct lttng_domain domain; | |
372 | struct lttng_handle *handle; | |
373 | struct lttng_event_field *event_field_list; | |
374 | pid_t cur_pid = 0; | |
ea5cbc00 CB |
375 | char *cmdline = NULL; |
376 | ||
f37d259d MD |
377 | struct lttng_event cur_event; |
378 | ||
379 | memset(&domain, 0, sizeof(domain)); | |
380 | memset(&cur_event, 0, sizeof(cur_event)); | |
381 | ||
382 | DBG("Getting UST tracing event fields"); | |
383 | ||
384 | domain.type = LTTNG_DOMAIN_UST; | |
385 | ||
386 | handle = lttng_create_handle(NULL, &domain); | |
387 | if (handle == NULL) { | |
388 | goto error; | |
389 | } | |
390 | ||
391 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
392 | if (size < 0) { | |
60e835ca | 393 | ERR("Unable to list UST event fields: %s", lttng_strerror(size)); |
f37d259d MD |
394 | lttng_destroy_handle(handle); |
395 | return size; | |
396 | } | |
397 | ||
398 | MSG("UST events:\n-------------"); | |
399 | ||
400 | if (size == 0) { | |
401 | MSG("None"); | |
402 | } | |
403 | ||
404 | for (i = 0; i < size; i++) { | |
405 | if (cur_pid != event_field_list[i].event.pid) { | |
406 | cur_pid = event_field_list[i].event.pid; | |
ea5cbc00 CB |
407 | cmdline = get_cmdline_by_pid(cur_pid); |
408 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
409 | free(cmdline); | |
958e15ec DG |
410 | /* Wipe current event since we are about to print a new PID. */ |
411 | memset(&cur_event, 0, sizeof(cur_event)); | |
f37d259d MD |
412 | } |
413 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
414 | print_events(&event_field_list[i].event); | |
415 | memcpy(&cur_event, &event_field_list[i].event, | |
416 | sizeof(cur_event)); | |
417 | } | |
418 | print_event_field(&event_field_list[i]); | |
419 | } | |
420 | ||
421 | MSG(""); | |
422 | ||
423 | free(event_field_list); | |
424 | lttng_destroy_handle(handle); | |
425 | ||
426 | return CMD_SUCCESS; | |
427 | ||
428 | error: | |
429 | lttng_destroy_handle(handle); | |
430 | return -1; | |
431 | } | |
432 | ||
f3ed775e | 433 | /* |
9f19cc17 | 434 | * Ask for all trace events in the kernel and pretty print them. |
f3ed775e | 435 | */ |
9f19cc17 | 436 | static int list_kernel_events(void) |
f3ed775e | 437 | { |
9f19cc17 | 438 | int i, size; |
b551a063 DG |
439 | struct lttng_domain domain; |
440 | struct lttng_handle *handle; | |
9f19cc17 | 441 | struct lttng_event *event_list; |
f3ed775e | 442 | |
441c16a7 MD |
443 | memset(&domain, 0, sizeof(domain)); |
444 | ||
b551a063 DG |
445 | DBG("Getting kernel tracing events"); |
446 | ||
447 | domain.type = LTTNG_DOMAIN_KERNEL; | |
448 | ||
449 | handle = lttng_create_handle(NULL, &domain); | |
450 | if (handle == NULL) { | |
451 | goto error; | |
452 | } | |
f3ed775e | 453 | |
cd80958d | 454 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 | 455 | if (size < 0) { |
60e835ca | 456 | ERR("Unable to list kernel events: %s", lttng_strerror(size)); |
ef021732 | 457 | lttng_destroy_handle(handle); |
9f19cc17 | 458 | return size; |
f3ed775e DG |
459 | } |
460 | ||
9f19cc17 | 461 | MSG("Kernel events:\n-------------"); |
f3ed775e | 462 | |
9f19cc17 | 463 | for (i = 0; i < size; i++) { |
b551a063 | 464 | print_events(&event_list[i]); |
f3ed775e DG |
465 | } |
466 | ||
b551a063 DG |
467 | MSG(""); |
468 | ||
f3ed775e DG |
469 | free(event_list); |
470 | ||
ef021732 | 471 | lttng_destroy_handle(handle); |
f3ed775e | 472 | return CMD_SUCCESS; |
b551a063 DG |
473 | |
474 | error: | |
ef021732 | 475 | lttng_destroy_handle(handle); |
b551a063 | 476 | return -1; |
f3ed775e DG |
477 | } |
478 | ||
479 | /* | |
9f19cc17 | 480 | * List events of channel of session and domain. |
f3ed775e | 481 | */ |
cd80958d | 482 | static int list_events(const char *channel_name) |
f3ed775e DG |
483 | { |
484 | int ret, count, i; | |
9f19cc17 | 485 | struct lttng_event *events = NULL; |
f3ed775e | 486 | |
cd80958d | 487 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e DG |
488 | if (count < 0) { |
489 | ret = count; | |
60e835ca | 490 | ERR("%s", lttng_strerror(ret)); |
f3ed775e DG |
491 | goto error; |
492 | } | |
493 | ||
9f19cc17 DG |
494 | MSG("\n%sEvents:", indent4); |
495 | if (count == 0) { | |
5edd7e09 | 496 | MSG("%sNone\n", indent6); |
9f19cc17 DG |
497 | goto end; |
498 | } | |
499 | ||
f3ed775e | 500 | for (i = 0; i < count; i++) { |
b551a063 | 501 | print_events(&events[i]); |
f3ed775e DG |
502 | } |
503 | ||
9f19cc17 | 504 | MSG(""); |
f3ed775e | 505 | |
9f19cc17 | 506 | end: |
0e428499 | 507 | free(events); |
9f19cc17 | 508 | ret = CMD_SUCCESS; |
f3ed775e DG |
509 | |
510 | error: | |
511 | return ret; | |
512 | } | |
513 | ||
514 | /* | |
9f19cc17 DG |
515 | * Pretty print channel |
516 | */ | |
517 | static void print_channel(struct lttng_channel *channel) | |
518 | { | |
464dd62d | 519 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
520 | |
521 | MSG("%sAttributes:", indent4); | |
a5bbe8f6 DG |
522 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); |
523 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
9f19cc17 | 524 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); |
a5bbe8f6 DG |
525 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); |
526 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
9f19cc17 DG |
527 | switch (channel->attr.output) { |
528 | case LTTNG_EVENT_SPLICE: | |
529 | MSG("%soutput: splice()", indent6); | |
530 | break; | |
531 | case LTTNG_EVENT_MMAP: | |
532 | MSG("%soutput: mmap()", indent6); | |
533 | break; | |
534 | } | |
535 | } | |
536 | ||
537 | /* | |
538 | * List channel(s) of session and domain. | |
f3ed775e | 539 | * |
9f19cc17 | 540 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 541 | */ |
cd80958d | 542 | static int list_channels(const char *channel_name) |
f3ed775e | 543 | { |
9f19cc17 DG |
544 | int count, i, ret = CMD_SUCCESS; |
545 | unsigned int chan_found = 0; | |
546 | struct lttng_channel *channels = NULL; | |
f3ed775e | 547 | |
3e25cb20 | 548 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 549 | |
cd80958d | 550 | count = lttng_list_channels(handle, &channels); |
f3ed775e | 551 | if (count < 0) { |
c7d620a2 DG |
552 | switch (-count) { |
553 | case LTTNG_ERR_KERN_CHAN_NOT_FOUND: | |
554 | ret = CMD_SUCCESS; | |
555 | WARN("No kernel channel"); | |
556 | break; | |
557 | default: | |
558 | /* We had a real error */ | |
559 | ret = count; | |
560 | ERR("%s", lttng_strerror(ret)); | |
60e835ca | 561 | break; |
c7d620a2 | 562 | } |
ae856491 | 563 | goto error_channels; |
f3ed775e DG |
564 | } |
565 | ||
9f19cc17 DG |
566 | if (channel_name == NULL) { |
567 | MSG("Channels:\n-------------"); | |
568 | } | |
569 | ||
570 | for (i = 0; i < count; i++) { | |
571 | if (channel_name != NULL) { | |
572 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
573 | chan_found = 1; | |
574 | } else { | |
575 | continue; | |
576 | } | |
577 | } | |
578 | print_channel(&channels[i]); | |
579 | ||
580 | /* Listing events per channel */ | |
cd80958d | 581 | ret = list_events(channels[i].name); |
9f19cc17 | 582 | if (ret < 0) { |
60e835ca | 583 | ERR("%s", lttng_strerror(ret)); |
9f19cc17 DG |
584 | } |
585 | ||
586 | if (chan_found) { | |
587 | break; | |
f3ed775e | 588 | } |
f3ed775e DG |
589 | } |
590 | ||
9f19cc17 | 591 | if (!chan_found && channel_name != NULL) { |
ae856491 DG |
592 | ERR("Channel %s not found", channel_name); |
593 | goto error; | |
9f19cc17 | 594 | } |
f3ed775e | 595 | |
9f19cc17 | 596 | ret = CMD_SUCCESS; |
f3ed775e DG |
597 | |
598 | error: | |
ae856491 DG |
599 | free(channels); |
600 | ||
601 | error_channels: | |
f3ed775e DG |
602 | return ret; |
603 | } | |
604 | ||
605 | /* | |
9f19cc17 | 606 | * List available tracing session. List only basic information. |
f3ed775e | 607 | * |
9f19cc17 | 608 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 609 | */ |
9f19cc17 | 610 | static int list_sessions(const char *session_name) |
f3ed775e | 611 | { |
9f19cc17 DG |
612 | int ret, count, i; |
613 | unsigned int session_found = 0; | |
614 | struct lttng_session *sessions; | |
615 | ||
616 | count = lttng_list_sessions(&sessions); | |
617 | DBG("Session count %d", count); | |
618 | if (count < 0) { | |
619 | ret = count; | |
8f3f773f | 620 | ERR("%s", lttng_strerror(ret)); |
9f19cc17 | 621 | goto error; |
d32fb093 DG |
622 | } else if (count == 0) { |
623 | MSG("Currently no available tracing session"); | |
624 | goto end; | |
9f19cc17 DG |
625 | } |
626 | ||
627 | if (session_name == NULL) { | |
628 | MSG("Available tracing sessions:"); | |
629 | } | |
630 | ||
631 | for (i = 0; i < count; i++) { | |
632 | if (session_name != NULL) { | |
633 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
634 | session_found = 1; | |
2cbf8fed DG |
635 | MSG("Tracing session %s: [%s%s]", session_name, |
636 | active_string(sessions[i].enabled), | |
637 | snapshot_string(sessions[i].snapshot_mode)); | |
9f19cc17 DG |
638 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); |
639 | break; | |
640 | } | |
3842aa86 | 641 | } else { |
2cbf8fed DG |
642 | MSG(" %d) %s (%s) [%s%s]", i + 1, sessions[i].name, sessions[i].path, |
643 | active_string(sessions[i].enabled), | |
644 | snapshot_string(sessions[i].snapshot_mode)); | |
9f19cc17 DG |
645 | } |
646 | } | |
647 | ||
648 | free(sessions); | |
649 | ||
650 | if (!session_found && session_name != NULL) { | |
b6913340 DG |
651 | ERR("Session '%s' not found", session_name); |
652 | ret = CMD_ERROR; | |
653 | goto error; | |
9f19cc17 DG |
654 | } |
655 | ||
656 | if (session_name == NULL) { | |
6e0de39b | 657 | MSG("\nUse lttng list <session_name> for more details"); |
9f19cc17 | 658 | } |
f3ed775e | 659 | |
d32fb093 | 660 | end: |
f3ed775e DG |
661 | return CMD_SUCCESS; |
662 | ||
663 | error: | |
664 | return ret; | |
665 | } | |
f3ed775e DG |
666 | |
667 | /* | |
9f19cc17 | 668 | * List available domain(s) for a session. |
f3ed775e | 669 | */ |
330be774 | 670 | static int list_domains(const char *session_name) |
f3ed775e | 671 | { |
9f19cc17 DG |
672 | int i, count, ret = CMD_SUCCESS; |
673 | struct lttng_domain *domains = NULL; | |
674 | ||
675 | MSG("Domains:\n-------------"); | |
676 | ||
330be774 | 677 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 DG |
678 | if (count < 0) { |
679 | ret = count; | |
60e835ca | 680 | ERR("%s", lttng_strerror(ret)); |
9f19cc17 DG |
681 | goto error; |
682 | } else if (count == 0) { | |
683 | MSG(" None"); | |
684 | goto end; | |
685 | } | |
686 | ||
687 | for (i = 0; i < count; i++) { | |
688 | switch (domains[i].type) { | |
689 | case LTTNG_DOMAIN_KERNEL: | |
690 | MSG(" - Kernel"); | |
b551a063 DG |
691 | break; |
692 | case LTTNG_DOMAIN_UST: | |
693 | MSG(" - UST global"); | |
694 | break; | |
9f19cc17 DG |
695 | default: |
696 | break; | |
697 | } | |
698 | } | |
699 | ||
700 | end: | |
701 | free(domains); | |
702 | ||
703 | error: | |
704 | return ret; | |
f3ed775e | 705 | } |
f3ed775e DG |
706 | |
707 | /* | |
9f19cc17 | 708 | * The 'list <options>' first level command |
f3ed775e DG |
709 | */ |
710 | int cmd_list(int argc, const char **argv) | |
711 | { | |
c617c0c6 | 712 | int opt, ret = CMD_SUCCESS; |
9f19cc17 | 713 | const char *session_name; |
f3ed775e | 714 | static poptContext pc; |
9f19cc17 DG |
715 | struct lttng_domain domain; |
716 | struct lttng_domain *domains = NULL; | |
f3ed775e | 717 | |
441c16a7 MD |
718 | memset(&domain, 0, sizeof(domain)); |
719 | ||
9f19cc17 | 720 | if (argc < 1) { |
f3ed775e | 721 | usage(stderr); |
ca1c3607 | 722 | ret = CMD_ERROR; |
f3ed775e DG |
723 | goto end; |
724 | } | |
725 | ||
726 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
727 | poptReadDefaultConfig(pc, 0); | |
728 | ||
729 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
730 | switch (opt) { | |
731 | case OPT_HELP: | |
ca1c3607 | 732 | usage(stdout); |
f3ed775e | 733 | goto end; |
eeac7d46 MD |
734 | case OPT_USERSPACE: |
735 | opt_userspace = 1; | |
eeac7d46 | 736 | break; |
679b4943 SM |
737 | case OPT_LIST_OPTIONS: |
738 | list_cmd_options(stdout, long_options); | |
679b4943 | 739 | goto end; |
f3ed775e DG |
740 | default: |
741 | usage(stderr); | |
742 | ret = CMD_UNDEFINED; | |
743 | goto end; | |
744 | } | |
745 | } | |
746 | ||
9f19cc17 DG |
747 | /* Get session name (trailing argument) */ |
748 | session_name = poptGetArg(pc); | |
b551a063 | 749 | DBG2("Session name: %s", session_name); |
9f19cc17 | 750 | |
cd80958d DG |
751 | if (opt_kernel) { |
752 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
753 | } else if (opt_userspace) { |
754 | DBG2("Listing userspace global domain"); | |
755 | domain.type = LTTNG_DOMAIN_UST; | |
cd80958d DG |
756 | } |
757 | ||
aa5de748 MD |
758 | if (opt_kernel || opt_userspace) { |
759 | handle = lttng_create_handle(session_name, &domain); | |
760 | if (handle == NULL) { | |
761 | ret = CMD_FATAL; | |
762 | goto end; | |
763 | } | |
cd80958d DG |
764 | } |
765 | ||
9f19cc17 | 766 | if (session_name == NULL) { |
b551a063 DG |
767 | if (!opt_kernel && !opt_userspace) { |
768 | ret = list_sessions(NULL); | |
b6913340 | 769 | if (ret != 0) { |
b551a063 DG |
770 | goto end; |
771 | } | |
772 | } | |
9f19cc17 DG |
773 | if (opt_kernel) { |
774 | ret = list_kernel_events(); | |
775 | if (ret < 0) { | |
6191db77 | 776 | ret = CMD_ERROR; |
9f19cc17 DG |
777 | goto end; |
778 | } | |
b551a063 DG |
779 | } |
780 | if (opt_userspace) { | |
f37d259d MD |
781 | if (opt_fields) { |
782 | ret = list_ust_event_fields(); | |
783 | } else { | |
784 | ret = list_ust_events(); | |
785 | } | |
9f19cc17 | 786 | if (ret < 0) { |
6191db77 | 787 | ret = CMD_ERROR; |
9f19cc17 DG |
788 | goto end; |
789 | } | |
790 | } | |
791 | } else { | |
792 | /* List session attributes */ | |
793 | ret = list_sessions(session_name); | |
b6913340 | 794 | if (ret != 0) { |
9f19cc17 DG |
795 | goto end; |
796 | } | |
797 | ||
798 | /* Domain listing */ | |
799 | if (opt_domain) { | |
330be774 | 800 | ret = list_domains(session_name); |
9f19cc17 DG |
801 | goto end; |
802 | } | |
803 | ||
804 | if (opt_kernel) { | |
9f19cc17 | 805 | /* Channel listing */ |
cd80958d | 806 | ret = list_channels(opt_channel); |
9f19cc17 DG |
807 | if (ret < 0) { |
808 | goto end; | |
809 | } | |
9f19cc17 | 810 | } else { |
c617c0c6 MD |
811 | int i, nb_domain; |
812 | ||
9f19cc17 | 813 | /* We want all domain(s) */ |
330be774 | 814 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 815 | if (nb_domain < 0) { |
67635185 | 816 | ret = nb_domain; |
60e835ca | 817 | ERR("%s", lttng_strerror(ret)); |
9f19cc17 DG |
818 | goto end; |
819 | } | |
820 | ||
b551a063 | 821 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
822 | switch (domains[i].type) { |
823 | case LTTNG_DOMAIN_KERNEL: | |
824 | MSG("=== Domain: Kernel ===\n"); | |
825 | break; | |
b551a063 DG |
826 | case LTTNG_DOMAIN_UST: |
827 | MSG("=== Domain: UST global ===\n"); | |
88c5f0d8 DG |
828 | MSG("Buffer type: %s\n", |
829 | domains[i].buf_type == | |
830 | LTTNG_BUFFER_PER_PID ? "per PID" : "per UID"); | |
b551a063 | 831 | break; |
9f19cc17 DG |
832 | default: |
833 | MSG("=== Domain: Unimplemented ===\n"); | |
834 | break; | |
835 | } | |
836 | ||
cd80958d | 837 | /* Clean handle before creating a new one */ |
aa5de748 MD |
838 | if (handle) { |
839 | lttng_destroy_handle(handle); | |
840 | } | |
cd80958d DG |
841 | |
842 | handle = lttng_create_handle(session_name, &domains[i]); | |
843 | if (handle == NULL) { | |
ca1c3607 | 844 | ret = CMD_FATAL; |
cd80958d DG |
845 | goto end; |
846 | } | |
847 | ||
848 | ret = list_channels(opt_channel); | |
9f19cc17 DG |
849 | if (ret < 0) { |
850 | goto end; | |
851 | } | |
852 | } | |
853 | } | |
f3ed775e DG |
854 | } |
855 | ||
856 | end: | |
0e428499 | 857 | free(domains); |
aa5de748 MD |
858 | if (handle) { |
859 | lttng_destroy_handle(handle); | |
860 | } | |
cd80958d | 861 | |
ca1c3607 | 862 | poptFreeContext(pc); |
f3ed775e DG |
863 | return ret; |
864 | } |