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; | |
9c0ce9b1 | 107 | char path[20]; /* Can't go bigger than /proc/65535/cmdline */ |
f3ed775e DG |
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); | |
b2054438 JG |
117 | if (!cmdline) { |
118 | perror("malloc cmdline"); | |
119 | goto end; | |
120 | } | |
f3ed775e | 121 | ret = fread(cmdline, 1, PATH_MAX, fp); |
f40799e8 DG |
122 | if (ret < 0) { |
123 | perror("fread proc list"); | |
124 | } | |
f3ed775e DG |
125 | fclose(fp); |
126 | ||
127 | end: | |
128 | return cmdline; | |
129 | } | |
b551a063 | 130 | |
464dd62d MD |
131 | static |
132 | const char *active_string(int value) | |
133 | { | |
134 | switch (value) { | |
2cbf8fed DG |
135 | case 0: return "inactive"; |
136 | case 1: return "active"; | |
464dd62d MD |
137 | case -1: return ""; |
138 | default: return NULL; | |
139 | } | |
140 | } | |
141 | ||
2cbf8fed DG |
142 | static const char *snapshot_string(int value) |
143 | { | |
144 | switch (value) { | |
145 | case 1: | |
146 | return " snapshot"; | |
147 | default: | |
148 | return ""; | |
149 | } | |
150 | } | |
151 | ||
464dd62d MD |
152 | static |
153 | const char *enabled_string(int value) | |
154 | { | |
155 | switch (value) { | |
b09f0429 MD |
156 | case 0: return " [disabled]"; |
157 | case 1: return " [enabled]"; | |
464dd62d MD |
158 | case -1: return ""; |
159 | default: return NULL; | |
160 | } | |
161 | } | |
162 | ||
fceb65df MD |
163 | static |
164 | const char *filter_string(int value) | |
165 | { | |
166 | switch (value) { | |
167 | case 1: return " [with filter]"; | |
168 | default: return ""; | |
169 | } | |
170 | } | |
171 | ||
8005f29a MD |
172 | static const char *loglevel_string(int value) |
173 | { | |
174 | switch (value) { | |
255a5dab MD |
175 | case -1: |
176 | return ""; | |
177 | case LTTNG_LOGLEVEL_EMERG: | |
178 | return "TRACE_EMERG"; | |
179 | case LTTNG_LOGLEVEL_ALERT: | |
180 | return "TRACE_ALERT"; | |
181 | case LTTNG_LOGLEVEL_CRIT: | |
182 | return "TRACE_CRIT"; | |
183 | case LTTNG_LOGLEVEL_ERR: | |
184 | return "TRACE_ERR"; | |
185 | case LTTNG_LOGLEVEL_WARNING: | |
186 | return "TRACE_WARNING"; | |
187 | case LTTNG_LOGLEVEL_NOTICE: | |
188 | return "TRACE_NOTICE"; | |
189 | case LTTNG_LOGLEVEL_INFO: | |
190 | return "TRACE_INFO"; | |
191 | case LTTNG_LOGLEVEL_DEBUG_SYSTEM: | |
192 | return "TRACE_DEBUG_SYSTEM"; | |
193 | case LTTNG_LOGLEVEL_DEBUG_PROGRAM: | |
194 | return "TRACE_DEBUG_PROGRAM"; | |
195 | case LTTNG_LOGLEVEL_DEBUG_PROCESS: | |
196 | return "TRACE_DEBUG_PROCESS"; | |
197 | case LTTNG_LOGLEVEL_DEBUG_MODULE: | |
198 | return "TRACE_DEBUG_MODULE"; | |
199 | case LTTNG_LOGLEVEL_DEBUG_UNIT: | |
200 | return "TRACE_DEBUG_UNIT"; | |
201 | case LTTNG_LOGLEVEL_DEBUG_FUNCTION: | |
202 | return "TRACE_DEBUG_FUNCTION"; | |
203 | case LTTNG_LOGLEVEL_DEBUG_LINE: | |
204 | return "TRACE_DEBUG_LINE"; | |
205 | case LTTNG_LOGLEVEL_DEBUG: | |
206 | return "TRACE_DEBUG"; | |
207 | default: | |
208 | return "<<UNKNOWN>>"; | |
8005f29a MD |
209 | } |
210 | } | |
211 | ||
b551a063 DG |
212 | /* |
213 | * Pretty print single event. | |
214 | */ | |
215 | static void print_events(struct lttng_event *event) | |
216 | { | |
217 | switch (event->type) { | |
218 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 219 | { |
8b703175 | 220 | if (event->loglevel != -1) { |
fceb65df | 221 | MSG("%s%s (loglevel: %s (%d)) (type: tracepoint)%s%s", |
8b703175 | 222 | indent6, |
81afa345 | 223 | event->name, |
8005f29a | 224 | loglevel_string(event->loglevel), |
8b703175 | 225 | event->loglevel, |
fceb65df MD |
226 | enabled_string(event->enabled), |
227 | filter_string(event->filter)); | |
8b703175 | 228 | } else { |
fceb65df | 229 | MSG("%s%s (type: tracepoint)%s%s", |
8b703175 MD |
230 | indent6, |
231 | event->name, | |
fceb65df MD |
232 | enabled_string(event->enabled), |
233 | filter_string(event->filter)); | |
8b703175 | 234 | } |
b551a063 | 235 | break; |
e4baff1e | 236 | } |
1896972b DG |
237 | case LTTNG_EVENT_FUNCTION: |
238 | MSG("%s%s (type: function)%s%s", indent6, | |
239 | event->name, enabled_string(event->enabled), | |
240 | filter_string(event->filter)); | |
241 | if (event->attr.probe.addr != 0) { | |
242 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
243 | } else { | |
244 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
245 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
246 | } | |
247 | break; | |
b551a063 | 248 | case LTTNG_EVENT_PROBE: |
fceb65df MD |
249 | MSG("%s%s (type: probe)%s%s", indent6, |
250 | event->name, enabled_string(event->enabled), | |
251 | filter_string(event->filter)); | |
b551a063 DG |
252 | if (event->attr.probe.addr != 0) { |
253 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
254 | } else { | |
255 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
256 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
257 | } | |
258 | break; | |
b551a063 | 259 | case LTTNG_EVENT_FUNCTION_ENTRY: |
fceb65df MD |
260 | MSG("%s%s (type: function)%s%s", indent6, |
261 | event->name, enabled_string(event->enabled), | |
262 | filter_string(event->filter)); | |
b551a063 DG |
263 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
264 | break; | |
265 | case LTTNG_EVENT_SYSCALL: | |
fceb65df MD |
266 | MSG("%ssyscalls (type: syscall)%s%s", indent6, |
267 | enabled_string(event->enabled), | |
268 | filter_string(event->filter)); | |
b551a063 DG |
269 | break; |
270 | case LTTNG_EVENT_NOOP: | |
fceb65df MD |
271 | MSG("%s (type: noop)%s%s", indent6, |
272 | enabled_string(event->enabled), | |
273 | filter_string(event->filter)); | |
b551a063 DG |
274 | break; |
275 | case LTTNG_EVENT_ALL: | |
276 | /* We should never have "all" events in list. */ | |
277 | assert(0); | |
278 | break; | |
279 | } | |
280 | } | |
281 | ||
f37d259d MD |
282 | static const char *field_type(struct lttng_event_field *field) |
283 | { | |
284 | switch(field->type) { | |
285 | case LTTNG_EVENT_FIELD_INTEGER: | |
286 | return "integer"; | |
287 | case LTTNG_EVENT_FIELD_ENUM: | |
288 | return "enum"; | |
289 | case LTTNG_EVENT_FIELD_FLOAT: | |
290 | return "float"; | |
291 | case LTTNG_EVENT_FIELD_STRING: | |
292 | return "string"; | |
293 | case LTTNG_EVENT_FIELD_OTHER: | |
294 | default: /* fall-through */ | |
295 | return "unknown"; | |
296 | } | |
297 | } | |
298 | ||
299 | /* | |
300 | * Pretty print single event fields. | |
301 | */ | |
302 | static void print_event_field(struct lttng_event_field *field) | |
303 | { | |
304 | if (!field->field_name[0]) { | |
305 | return; | |
306 | } | |
d8fbe2a9 | 307 | MSG("%sfield: %s (%s)%s", indent8, field->field_name, |
45a32634 | 308 | field_type(field), field->nowrite ? " [no write]" : ""); |
f37d259d MD |
309 | } |
310 | ||
b551a063 DG |
311 | /* |
312 | * Ask session daemon for all user space tracepoints available. | |
313 | */ | |
314 | static int list_ust_events(void) | |
315 | { | |
316 | int i, size; | |
317 | struct lttng_domain domain; | |
318 | struct lttng_handle *handle; | |
319 | struct lttng_event *event_list; | |
320 | pid_t cur_pid = 0; | |
ea5cbc00 | 321 | char *cmdline = NULL; |
b551a063 | 322 | |
441c16a7 MD |
323 | memset(&domain, 0, sizeof(domain)); |
324 | ||
b551a063 DG |
325 | DBG("Getting UST tracing events"); |
326 | ||
327 | domain.type = LTTNG_DOMAIN_UST; | |
328 | ||
329 | handle = lttng_create_handle(NULL, &domain); | |
330 | if (handle == NULL) { | |
331 | goto error; | |
332 | } | |
333 | ||
334 | size = lttng_list_tracepoints(handle, &event_list); | |
335 | if (size < 0) { | |
60e835ca | 336 | ERR("Unable to list UST events: %s", lttng_strerror(size)); |
ef021732 | 337 | lttng_destroy_handle(handle); |
b551a063 DG |
338 | return size; |
339 | } | |
340 | ||
341 | MSG("UST events:\n-------------"); | |
342 | ||
343 | if (size == 0) { | |
344 | MSG("None"); | |
345 | } | |
346 | ||
347 | for (i = 0; i < size; i++) { | |
348 | if (cur_pid != event_list[i].pid) { | |
349 | cur_pid = event_list[i].pid; | |
ea5cbc00 CB |
350 | cmdline = get_cmdline_by_pid(cur_pid); |
351 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
352 | free(cmdline); | |
b551a063 DG |
353 | } |
354 | print_events(&event_list[i]); | |
355 | } | |
356 | ||
357 | MSG(""); | |
358 | ||
359 | free(event_list); | |
ef021732 | 360 | lttng_destroy_handle(handle); |
b551a063 DG |
361 | |
362 | return CMD_SUCCESS; | |
363 | ||
364 | error: | |
ef021732 | 365 | lttng_destroy_handle(handle); |
b551a063 DG |
366 | return -1; |
367 | } | |
f3ed775e | 368 | |
f37d259d MD |
369 | /* |
370 | * Ask session daemon for all user space tracepoint fields available. | |
371 | */ | |
372 | static int list_ust_event_fields(void) | |
373 | { | |
374 | int i, size; | |
375 | struct lttng_domain domain; | |
376 | struct lttng_handle *handle; | |
377 | struct lttng_event_field *event_field_list; | |
378 | pid_t cur_pid = 0; | |
ea5cbc00 CB |
379 | char *cmdline = NULL; |
380 | ||
f37d259d MD |
381 | struct lttng_event cur_event; |
382 | ||
383 | memset(&domain, 0, sizeof(domain)); | |
384 | memset(&cur_event, 0, sizeof(cur_event)); | |
385 | ||
386 | DBG("Getting UST tracing event fields"); | |
387 | ||
388 | domain.type = LTTNG_DOMAIN_UST; | |
389 | ||
390 | handle = lttng_create_handle(NULL, &domain); | |
391 | if (handle == NULL) { | |
392 | goto error; | |
393 | } | |
394 | ||
395 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
396 | if (size < 0) { | |
60e835ca | 397 | ERR("Unable to list UST event fields: %s", lttng_strerror(size)); |
f37d259d MD |
398 | lttng_destroy_handle(handle); |
399 | return size; | |
400 | } | |
401 | ||
402 | MSG("UST events:\n-------------"); | |
403 | ||
404 | if (size == 0) { | |
405 | MSG("None"); | |
406 | } | |
407 | ||
408 | for (i = 0; i < size; i++) { | |
409 | if (cur_pid != event_field_list[i].event.pid) { | |
410 | cur_pid = event_field_list[i].event.pid; | |
ea5cbc00 CB |
411 | cmdline = get_cmdline_by_pid(cur_pid); |
412 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
413 | free(cmdline); | |
958e15ec DG |
414 | /* Wipe current event since we are about to print a new PID. */ |
415 | memset(&cur_event, 0, sizeof(cur_event)); | |
f37d259d MD |
416 | } |
417 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
418 | print_events(&event_field_list[i].event); | |
419 | memcpy(&cur_event, &event_field_list[i].event, | |
420 | sizeof(cur_event)); | |
421 | } | |
422 | print_event_field(&event_field_list[i]); | |
423 | } | |
424 | ||
425 | MSG(""); | |
426 | ||
427 | free(event_field_list); | |
428 | lttng_destroy_handle(handle); | |
429 | ||
430 | return CMD_SUCCESS; | |
431 | ||
432 | error: | |
433 | lttng_destroy_handle(handle); | |
434 | return -1; | |
435 | } | |
436 | ||
f3ed775e | 437 | /* |
9f19cc17 | 438 | * Ask for all trace events in the kernel and pretty print them. |
f3ed775e | 439 | */ |
9f19cc17 | 440 | static int list_kernel_events(void) |
f3ed775e | 441 | { |
9f19cc17 | 442 | int i, size; |
b551a063 DG |
443 | struct lttng_domain domain; |
444 | struct lttng_handle *handle; | |
9f19cc17 | 445 | struct lttng_event *event_list; |
f3ed775e | 446 | |
441c16a7 MD |
447 | memset(&domain, 0, sizeof(domain)); |
448 | ||
b551a063 DG |
449 | DBG("Getting kernel tracing events"); |
450 | ||
451 | domain.type = LTTNG_DOMAIN_KERNEL; | |
452 | ||
453 | handle = lttng_create_handle(NULL, &domain); | |
454 | if (handle == NULL) { | |
455 | goto error; | |
456 | } | |
f3ed775e | 457 | |
cd80958d | 458 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 | 459 | if (size < 0) { |
60e835ca | 460 | ERR("Unable to list kernel events: %s", lttng_strerror(size)); |
ef021732 | 461 | lttng_destroy_handle(handle); |
9f19cc17 | 462 | return size; |
f3ed775e DG |
463 | } |
464 | ||
9f19cc17 | 465 | MSG("Kernel events:\n-------------"); |
f3ed775e | 466 | |
9f19cc17 | 467 | for (i = 0; i < size; i++) { |
b551a063 | 468 | print_events(&event_list[i]); |
f3ed775e DG |
469 | } |
470 | ||
b551a063 DG |
471 | MSG(""); |
472 | ||
f3ed775e DG |
473 | free(event_list); |
474 | ||
ef021732 | 475 | lttng_destroy_handle(handle); |
f3ed775e | 476 | return CMD_SUCCESS; |
b551a063 DG |
477 | |
478 | error: | |
ef021732 | 479 | lttng_destroy_handle(handle); |
b551a063 | 480 | return -1; |
f3ed775e DG |
481 | } |
482 | ||
483 | /* | |
9f19cc17 | 484 | * List events of channel of session and domain. |
f3ed775e | 485 | */ |
cd80958d | 486 | static int list_events(const char *channel_name) |
f3ed775e DG |
487 | { |
488 | int ret, count, i; | |
9f19cc17 | 489 | struct lttng_event *events = NULL; |
f3ed775e | 490 | |
cd80958d | 491 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e DG |
492 | if (count < 0) { |
493 | ret = count; | |
60e835ca | 494 | ERR("%s", lttng_strerror(ret)); |
f3ed775e DG |
495 | goto error; |
496 | } | |
497 | ||
9f19cc17 DG |
498 | MSG("\n%sEvents:", indent4); |
499 | if (count == 0) { | |
5edd7e09 | 500 | MSG("%sNone\n", indent6); |
9f19cc17 DG |
501 | goto end; |
502 | } | |
503 | ||
f3ed775e | 504 | for (i = 0; i < count; i++) { |
b551a063 | 505 | print_events(&events[i]); |
f3ed775e DG |
506 | } |
507 | ||
9f19cc17 | 508 | MSG(""); |
f3ed775e | 509 | |
9f19cc17 | 510 | end: |
0e428499 | 511 | free(events); |
9f19cc17 | 512 | ret = CMD_SUCCESS; |
f3ed775e DG |
513 | |
514 | error: | |
515 | return ret; | |
516 | } | |
517 | ||
518 | /* | |
9f19cc17 DG |
519 | * Pretty print channel |
520 | */ | |
521 | static void print_channel(struct lttng_channel *channel) | |
522 | { | |
464dd62d | 523 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
524 | |
525 | MSG("%sAttributes:", indent4); | |
a5bbe8f6 DG |
526 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); |
527 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
9f19cc17 | 528 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); |
a5bbe8f6 DG |
529 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); |
530 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
9f19cc17 DG |
531 | switch (channel->attr.output) { |
532 | case LTTNG_EVENT_SPLICE: | |
533 | MSG("%soutput: splice()", indent6); | |
534 | break; | |
535 | case LTTNG_EVENT_MMAP: | |
536 | MSG("%soutput: mmap()", indent6); | |
537 | break; | |
538 | } | |
539 | } | |
540 | ||
541 | /* | |
542 | * List channel(s) of session and domain. | |
f3ed775e | 543 | * |
9f19cc17 | 544 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 545 | */ |
cd80958d | 546 | static int list_channels(const char *channel_name) |
f3ed775e | 547 | { |
9f19cc17 DG |
548 | int count, i, ret = CMD_SUCCESS; |
549 | unsigned int chan_found = 0; | |
550 | struct lttng_channel *channels = NULL; | |
f3ed775e | 551 | |
3e25cb20 | 552 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 553 | |
cd80958d | 554 | count = lttng_list_channels(handle, &channels); |
f3ed775e | 555 | if (count < 0) { |
c7d620a2 DG |
556 | switch (-count) { |
557 | case LTTNG_ERR_KERN_CHAN_NOT_FOUND: | |
558 | ret = CMD_SUCCESS; | |
559 | WARN("No kernel channel"); | |
560 | break; | |
561 | default: | |
562 | /* We had a real error */ | |
563 | ret = count; | |
564 | ERR("%s", lttng_strerror(ret)); | |
60e835ca | 565 | break; |
c7d620a2 | 566 | } |
ae856491 | 567 | goto error_channels; |
f3ed775e DG |
568 | } |
569 | ||
9f19cc17 DG |
570 | if (channel_name == NULL) { |
571 | MSG("Channels:\n-------------"); | |
572 | } | |
573 | ||
574 | for (i = 0; i < count; i++) { | |
575 | if (channel_name != NULL) { | |
576 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
577 | chan_found = 1; | |
578 | } else { | |
579 | continue; | |
580 | } | |
581 | } | |
582 | print_channel(&channels[i]); | |
583 | ||
584 | /* Listing events per channel */ | |
cd80958d | 585 | ret = list_events(channels[i].name); |
9f19cc17 | 586 | if (ret < 0) { |
60e835ca | 587 | ERR("%s", lttng_strerror(ret)); |
9f19cc17 DG |
588 | } |
589 | ||
590 | if (chan_found) { | |
591 | break; | |
f3ed775e | 592 | } |
f3ed775e DG |
593 | } |
594 | ||
9f19cc17 | 595 | if (!chan_found && channel_name != NULL) { |
ae856491 DG |
596 | ERR("Channel %s not found", channel_name); |
597 | goto error; | |
9f19cc17 | 598 | } |
f3ed775e | 599 | |
9f19cc17 | 600 | ret = CMD_SUCCESS; |
f3ed775e DG |
601 | |
602 | error: | |
ae856491 DG |
603 | free(channels); |
604 | ||
605 | error_channels: | |
f3ed775e DG |
606 | return ret; |
607 | } | |
608 | ||
609 | /* | |
9f19cc17 | 610 | * List available tracing session. List only basic information. |
f3ed775e | 611 | * |
9f19cc17 | 612 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 613 | */ |
9f19cc17 | 614 | static int list_sessions(const char *session_name) |
f3ed775e | 615 | { |
9f19cc17 DG |
616 | int ret, count, i; |
617 | unsigned int session_found = 0; | |
618 | struct lttng_session *sessions; | |
619 | ||
620 | count = lttng_list_sessions(&sessions); | |
621 | DBG("Session count %d", count); | |
622 | if (count < 0) { | |
623 | ret = count; | |
8f3f773f | 624 | ERR("%s", lttng_strerror(ret)); |
9f19cc17 | 625 | goto error; |
d32fb093 DG |
626 | } else if (count == 0) { |
627 | MSG("Currently no available tracing session"); | |
628 | goto end; | |
9f19cc17 DG |
629 | } |
630 | ||
631 | if (session_name == NULL) { | |
632 | MSG("Available tracing sessions:"); | |
633 | } | |
634 | ||
635 | for (i = 0; i < count; i++) { | |
636 | if (session_name != NULL) { | |
637 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
638 | session_found = 1; | |
2cbf8fed DG |
639 | MSG("Tracing session %s: [%s%s]", session_name, |
640 | active_string(sessions[i].enabled), | |
641 | snapshot_string(sessions[i].snapshot_mode)); | |
9f19cc17 DG |
642 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); |
643 | break; | |
644 | } | |
3842aa86 | 645 | } else { |
2cbf8fed DG |
646 | MSG(" %d) %s (%s) [%s%s]", i + 1, sessions[i].name, sessions[i].path, |
647 | active_string(sessions[i].enabled), | |
648 | snapshot_string(sessions[i].snapshot_mode)); | |
9f19cc17 DG |
649 | } |
650 | } | |
651 | ||
652 | free(sessions); | |
653 | ||
654 | if (!session_found && session_name != NULL) { | |
b6913340 DG |
655 | ERR("Session '%s' not found", session_name); |
656 | ret = CMD_ERROR; | |
657 | goto error; | |
9f19cc17 DG |
658 | } |
659 | ||
660 | if (session_name == NULL) { | |
6e0de39b | 661 | MSG("\nUse lttng list <session_name> for more details"); |
9f19cc17 | 662 | } |
f3ed775e | 663 | |
d32fb093 | 664 | end: |
f3ed775e DG |
665 | return CMD_SUCCESS; |
666 | ||
667 | error: | |
668 | return ret; | |
669 | } | |
f3ed775e DG |
670 | |
671 | /* | |
9f19cc17 | 672 | * List available domain(s) for a session. |
f3ed775e | 673 | */ |
330be774 | 674 | static int list_domains(const char *session_name) |
f3ed775e | 675 | { |
9f19cc17 DG |
676 | int i, count, ret = CMD_SUCCESS; |
677 | struct lttng_domain *domains = NULL; | |
678 | ||
679 | MSG("Domains:\n-------------"); | |
680 | ||
330be774 | 681 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 DG |
682 | if (count < 0) { |
683 | ret = count; | |
60e835ca | 684 | ERR("%s", lttng_strerror(ret)); |
9f19cc17 DG |
685 | goto error; |
686 | } else if (count == 0) { | |
687 | MSG(" None"); | |
688 | goto end; | |
689 | } | |
690 | ||
691 | for (i = 0; i < count; i++) { | |
692 | switch (domains[i].type) { | |
693 | case LTTNG_DOMAIN_KERNEL: | |
694 | MSG(" - Kernel"); | |
b551a063 DG |
695 | break; |
696 | case LTTNG_DOMAIN_UST: | |
697 | MSG(" - UST global"); | |
698 | break; | |
9f19cc17 DG |
699 | default: |
700 | break; | |
701 | } | |
702 | } | |
703 | ||
704 | end: | |
705 | free(domains); | |
706 | ||
707 | error: | |
708 | return ret; | |
f3ed775e | 709 | } |
f3ed775e DG |
710 | |
711 | /* | |
9f19cc17 | 712 | * The 'list <options>' first level command |
f3ed775e DG |
713 | */ |
714 | int cmd_list(int argc, const char **argv) | |
715 | { | |
c617c0c6 | 716 | int opt, ret = CMD_SUCCESS; |
9f19cc17 | 717 | const char *session_name; |
f3ed775e | 718 | static poptContext pc; |
9f19cc17 DG |
719 | struct lttng_domain domain; |
720 | struct lttng_domain *domains = NULL; | |
f3ed775e | 721 | |
441c16a7 MD |
722 | memset(&domain, 0, sizeof(domain)); |
723 | ||
9f19cc17 | 724 | if (argc < 1) { |
f3ed775e | 725 | usage(stderr); |
ca1c3607 | 726 | ret = CMD_ERROR; |
f3ed775e DG |
727 | goto end; |
728 | } | |
729 | ||
730 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
731 | poptReadDefaultConfig(pc, 0); | |
732 | ||
733 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
734 | switch (opt) { | |
735 | case OPT_HELP: | |
ca1c3607 | 736 | usage(stdout); |
f3ed775e | 737 | goto end; |
eeac7d46 MD |
738 | case OPT_USERSPACE: |
739 | opt_userspace = 1; | |
eeac7d46 | 740 | break; |
679b4943 SM |
741 | case OPT_LIST_OPTIONS: |
742 | list_cmd_options(stdout, long_options); | |
679b4943 | 743 | goto end; |
f3ed775e DG |
744 | default: |
745 | usage(stderr); | |
746 | ret = CMD_UNDEFINED; | |
747 | goto end; | |
748 | } | |
749 | } | |
750 | ||
9f19cc17 DG |
751 | /* Get session name (trailing argument) */ |
752 | session_name = poptGetArg(pc); | |
b551a063 | 753 | DBG2("Session name: %s", session_name); |
9f19cc17 | 754 | |
cd80958d DG |
755 | if (opt_kernel) { |
756 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
757 | } else if (opt_userspace) { |
758 | DBG2("Listing userspace global domain"); | |
759 | domain.type = LTTNG_DOMAIN_UST; | |
cd80958d DG |
760 | } |
761 | ||
aa5de748 MD |
762 | if (opt_kernel || opt_userspace) { |
763 | handle = lttng_create_handle(session_name, &domain); | |
764 | if (handle == NULL) { | |
765 | ret = CMD_FATAL; | |
766 | goto end; | |
767 | } | |
cd80958d DG |
768 | } |
769 | ||
9f19cc17 | 770 | if (session_name == NULL) { |
b551a063 DG |
771 | if (!opt_kernel && !opt_userspace) { |
772 | ret = list_sessions(NULL); | |
b6913340 | 773 | if (ret != 0) { |
b551a063 DG |
774 | goto end; |
775 | } | |
776 | } | |
9f19cc17 DG |
777 | if (opt_kernel) { |
778 | ret = list_kernel_events(); | |
779 | if (ret < 0) { | |
6191db77 | 780 | ret = CMD_ERROR; |
9f19cc17 DG |
781 | goto end; |
782 | } | |
b551a063 DG |
783 | } |
784 | if (opt_userspace) { | |
f37d259d MD |
785 | if (opt_fields) { |
786 | ret = list_ust_event_fields(); | |
787 | } else { | |
788 | ret = list_ust_events(); | |
789 | } | |
9f19cc17 | 790 | if (ret < 0) { |
6191db77 | 791 | ret = CMD_ERROR; |
9f19cc17 DG |
792 | goto end; |
793 | } | |
794 | } | |
795 | } else { | |
796 | /* List session attributes */ | |
797 | ret = list_sessions(session_name); | |
b6913340 | 798 | if (ret != 0) { |
9f19cc17 DG |
799 | goto end; |
800 | } | |
801 | ||
802 | /* Domain listing */ | |
803 | if (opt_domain) { | |
330be774 | 804 | ret = list_domains(session_name); |
9f19cc17 DG |
805 | goto end; |
806 | } | |
807 | ||
09ee8fc1 | 808 | if (opt_kernel || opt_userspace) { |
9f19cc17 | 809 | /* Channel listing */ |
cd80958d | 810 | ret = list_channels(opt_channel); |
9f19cc17 DG |
811 | if (ret < 0) { |
812 | goto end; | |
813 | } | |
9f19cc17 | 814 | } else { |
c617c0c6 MD |
815 | int i, nb_domain; |
816 | ||
9f19cc17 | 817 | /* We want all domain(s) */ |
330be774 | 818 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 819 | if (nb_domain < 0) { |
67635185 | 820 | ret = nb_domain; |
60e835ca | 821 | ERR("%s", lttng_strerror(ret)); |
9f19cc17 DG |
822 | goto end; |
823 | } | |
824 | ||
b551a063 | 825 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
826 | switch (domains[i].type) { |
827 | case LTTNG_DOMAIN_KERNEL: | |
828 | MSG("=== Domain: Kernel ===\n"); | |
829 | break; | |
b551a063 DG |
830 | case LTTNG_DOMAIN_UST: |
831 | MSG("=== Domain: UST global ===\n"); | |
88c5f0d8 DG |
832 | MSG("Buffer type: %s\n", |
833 | domains[i].buf_type == | |
834 | LTTNG_BUFFER_PER_PID ? "per PID" : "per UID"); | |
b551a063 | 835 | break; |
9f19cc17 DG |
836 | default: |
837 | MSG("=== Domain: Unimplemented ===\n"); | |
838 | break; | |
839 | } | |
840 | ||
cd80958d | 841 | /* Clean handle before creating a new one */ |
aa5de748 MD |
842 | if (handle) { |
843 | lttng_destroy_handle(handle); | |
844 | } | |
cd80958d DG |
845 | |
846 | handle = lttng_create_handle(session_name, &domains[i]); | |
847 | if (handle == NULL) { | |
ca1c3607 | 848 | ret = CMD_FATAL; |
cd80958d DG |
849 | goto end; |
850 | } | |
851 | ||
852 | ret = list_channels(opt_channel); | |
9f19cc17 DG |
853 | if (ret < 0) { |
854 | goto end; | |
855 | } | |
856 | } | |
857 | } | |
f3ed775e DG |
858 | } |
859 | ||
860 | end: | |
0e428499 | 861 | free(domains); |
aa5de748 MD |
862 | if (handle) { |
863 | lttng_destroy_handle(handle); | |
864 | } | |
cd80958d | 865 | |
ca1c3607 | 866 | poptFreeContext(pc); |
f3ed775e DG |
867 | return ret; |
868 | } |