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 | |
fb14d0d8 JR |
26 | #include <common/mi-lttng.h> |
27 | ||
c399183f | 28 | #include "../command.h" |
f3ed775e | 29 | |
9f19cc17 DG |
30 | static int opt_userspace; |
31 | static int opt_kernel; | |
3c6a091f | 32 | static int opt_jul; |
9f19cc17 DG |
33 | static char *opt_channel; |
34 | static int opt_domain; | |
f37d259d | 35 | static int opt_fields; |
d78d6610 DG |
36 | #if 0 |
37 | /* Not implemented yet */ | |
38 | static char *opt_cmd_name; | |
39 | static pid_t opt_pid; | |
40 | #endif | |
9f19cc17 DG |
41 | |
42 | const char *indent4 = " "; | |
43 | const char *indent6 = " "; | |
44 | const char *indent8 = " "; | |
f3ed775e DG |
45 | |
46 | enum { | |
47 | OPT_HELP = 1, | |
eeac7d46 | 48 | OPT_USERSPACE, |
679b4943 | 49 | OPT_LIST_OPTIONS, |
f3ed775e DG |
50 | }; |
51 | ||
cd80958d | 52 | static struct lttng_handle *handle; |
fb14d0d8 | 53 | static struct mi_writer *writer; |
cd80958d | 54 | |
f3ed775e DG |
55 | static struct poptOption long_options[] = { |
56 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
57 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
9f19cc17 | 58 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, |
3c6a091f | 59 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
d78d6610 DG |
60 | #if 0 |
61 | /* Not implemented yet */ | |
62 | {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0}, | |
63 | {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, | |
64 | #else | |
65 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, | |
66 | #endif | |
9f19cc17 DG |
67 | {"channel", 'c', POPT_ARG_STRING, &opt_channel, 0, 0, 0}, |
68 | {"domain", 'd', POPT_ARG_VAL, &opt_domain, 1, 0, 0}, | |
f37d259d | 69 | {"fields", 'f', POPT_ARG_VAL, &opt_fields, 1, 0, 0}, |
679b4943 | 70 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
f3ed775e DG |
71 | {0, 0, 0, 0, 0, 0, 0} |
72 | }; | |
73 | ||
74 | /* | |
75 | * usage | |
76 | */ | |
77 | static void usage(FILE *ofp) | |
78 | { | |
747361fe | 79 | fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [SESSION OPTIONS]]\n"); |
9f19cc17 DG |
80 | fprintf(ofp, "\n"); |
81 | fprintf(ofp, "With no arguments, list available tracing session(s)\n"); | |
82 | fprintf(ofp, "\n"); | |
27221701 DG |
83 | fprintf(ofp, "Without a session, -k lists available kernel events\n"); |
84 | fprintf(ofp, "Without a session, -u lists available userspace events\n"); | |
9f19cc17 DG |
85 | fprintf(ofp, "\n"); |
86 | fprintf(ofp, " -h, --help Show this help\n"); | |
27221701 | 87 | fprintf(ofp, " --list-options Simple listing of options\n"); |
9f19cc17 DG |
88 | fprintf(ofp, " -k, --kernel Select kernel domain\n"); |
89 | fprintf(ofp, " -u, --userspace Select user-space domain.\n"); | |
3c6a091f | 90 | fprintf(ofp, " -j, --jul Apply for Java application using JUL\n"); |
f37d259d | 91 | fprintf(ofp, " -f, --fields List event fields.\n"); |
d78d6610 | 92 | #if 0 |
9f19cc17 | 93 | fprintf(ofp, " -p, --pid PID List user-space events by PID\n"); |
d78d6610 | 94 | #endif |
f3ed775e | 95 | fprintf(ofp, "\n"); |
27221701 | 96 | fprintf(ofp, "Session Options:\n"); |
9f19cc17 DG |
97 | fprintf(ofp, " -c, --channel NAME List details of a channel\n"); |
98 | fprintf(ofp, " -d, --domain List available domain(s)\n"); | |
f3ed775e DG |
99 | fprintf(ofp, "\n"); |
100 | } | |
101 | ||
102 | /* | |
9f19cc17 | 103 | * Get command line from /proc for a specific pid. |
f3ed775e | 104 | * |
9f19cc17 DG |
105 | * On success, return an allocated string pointer to the proc cmdline. |
106 | * On error, return NULL. | |
f3ed775e DG |
107 | */ |
108 | static char *get_cmdline_by_pid(pid_t pid) | |
109 | { | |
110 | int ret; | |
111 | FILE *fp; | |
112 | char *cmdline = NULL; | |
5f1abdd9 | 113 | char path[20]; /* Can't go bigger than /proc/65535/cmdline */ |
f3ed775e DG |
114 | |
115 | snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); | |
116 | fp = fopen(path, "r"); | |
117 | if (fp == NULL) { | |
118 | goto end; | |
119 | } | |
120 | ||
121 | /* Caller must free() *cmdline */ | |
122 | cmdline = malloc(PATH_MAX); | |
f6962219 JG |
123 | if (!cmdline) { |
124 | perror("malloc cmdline"); | |
125 | goto end; | |
126 | } | |
f3ed775e | 127 | ret = fread(cmdline, 1, PATH_MAX, fp); |
f40799e8 DG |
128 | if (ret < 0) { |
129 | perror("fread proc list"); | |
130 | } | |
f3ed775e DG |
131 | fclose(fp); |
132 | ||
133 | end: | |
134 | return cmdline; | |
135 | } | |
b551a063 | 136 | |
464dd62d MD |
137 | static |
138 | const char *active_string(int value) | |
139 | { | |
140 | switch (value) { | |
2cbf8fed DG |
141 | case 0: return "inactive"; |
142 | case 1: return "active"; | |
464dd62d MD |
143 | case -1: return ""; |
144 | default: return NULL; | |
145 | } | |
146 | } | |
147 | ||
2cbf8fed DG |
148 | static const char *snapshot_string(int value) |
149 | { | |
150 | switch (value) { | |
151 | case 1: | |
152 | return " snapshot"; | |
153 | default: | |
154 | return ""; | |
155 | } | |
156 | } | |
157 | ||
464dd62d MD |
158 | static |
159 | const char *enabled_string(int value) | |
160 | { | |
161 | switch (value) { | |
b09f0429 MD |
162 | case 0: return " [disabled]"; |
163 | case 1: return " [enabled]"; | |
464dd62d MD |
164 | case -1: return ""; |
165 | default: return NULL; | |
166 | } | |
167 | } | |
168 | ||
fceb65df MD |
169 | static |
170 | const char *filter_string(int value) | |
171 | { | |
172 | switch (value) { | |
173 | case 1: return " [with filter]"; | |
174 | default: return ""; | |
175 | } | |
176 | } | |
177 | ||
4634f12e JI |
178 | static |
179 | const char *exclusion_string(int value) | |
180 | { | |
181 | switch (value) { | |
182 | case 1: return " [has exclusions]"; | |
183 | default: return ""; | |
184 | } | |
185 | } | |
186 | ||
1f0e17de DG |
187 | static const char *logleveltype_string(enum lttng_loglevel_type value) |
188 | { | |
189 | switch (value) { | |
af6bce80 DG |
190 | case LTTNG_EVENT_LOGLEVEL_ALL: |
191 | return ":"; | |
1f0e17de | 192 | case LTTNG_EVENT_LOGLEVEL_RANGE: |
af6bce80 | 193 | return " <="; |
1f0e17de | 194 | case LTTNG_EVENT_LOGLEVEL_SINGLE: |
af6bce80 | 195 | return " =="; |
1f0e17de | 196 | default: |
af6bce80 | 197 | return " <<TYPE UNKN>>"; |
1f0e17de DG |
198 | } |
199 | } | |
200 | ||
b551a063 DG |
201 | /* |
202 | * Pretty print single event. | |
203 | */ | |
204 | static void print_events(struct lttng_event *event) | |
205 | { | |
206 | switch (event->type) { | |
207 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 208 | { |
8b703175 | 209 | if (event->loglevel != -1) { |
af6bce80 | 210 | MSG("%s%s (loglevel%s %s (%d)) (type: tracepoint)%s%s%s", |
8b703175 | 211 | indent6, |
81afa345 | 212 | event->name, |
1f0e17de | 213 | logleveltype_string(event->loglevel_type), |
fb14d0d8 | 214 | mi_lttng_loglevel_string(event->loglevel), |
8b703175 | 215 | event->loglevel, |
fceb65df | 216 | enabled_string(event->enabled), |
4634f12e | 217 | exclusion_string(event->exclusion), |
fceb65df | 218 | filter_string(event->filter)); |
8b703175 | 219 | } else { |
4634f12e | 220 | MSG("%s%s (type: tracepoint)%s%s%s", |
8b703175 MD |
221 | indent6, |
222 | event->name, | |
fceb65df | 223 | enabled_string(event->enabled), |
4634f12e | 224 | exclusion_string(event->exclusion), |
fceb65df | 225 | filter_string(event->filter)); |
8b703175 | 226 | } |
b551a063 | 227 | break; |
e4baff1e | 228 | } |
1896972b DG |
229 | case LTTNG_EVENT_FUNCTION: |
230 | MSG("%s%s (type: function)%s%s", indent6, | |
231 | event->name, enabled_string(event->enabled), | |
232 | filter_string(event->filter)); | |
233 | if (event->attr.probe.addr != 0) { | |
234 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
235 | } else { | |
236 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
237 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
238 | } | |
239 | break; | |
b551a063 | 240 | case LTTNG_EVENT_PROBE: |
fceb65df MD |
241 | MSG("%s%s (type: probe)%s%s", indent6, |
242 | event->name, enabled_string(event->enabled), | |
243 | filter_string(event->filter)); | |
b551a063 DG |
244 | if (event->attr.probe.addr != 0) { |
245 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
246 | } else { | |
247 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
248 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
249 | } | |
250 | break; | |
b551a063 | 251 | case LTTNG_EVENT_FUNCTION_ENTRY: |
fceb65df MD |
252 | MSG("%s%s (type: function)%s%s", indent6, |
253 | event->name, enabled_string(event->enabled), | |
254 | filter_string(event->filter)); | |
b551a063 DG |
255 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
256 | break; | |
257 | case LTTNG_EVENT_SYSCALL: | |
fceb65df MD |
258 | MSG("%ssyscalls (type: syscall)%s%s", indent6, |
259 | enabled_string(event->enabled), | |
260 | filter_string(event->filter)); | |
b551a063 DG |
261 | break; |
262 | case LTTNG_EVENT_NOOP: | |
fceb65df MD |
263 | MSG("%s (type: noop)%s%s", indent6, |
264 | enabled_string(event->enabled), | |
265 | filter_string(event->filter)); | |
b551a063 DG |
266 | break; |
267 | case LTTNG_EVENT_ALL: | |
268 | /* We should never have "all" events in list. */ | |
269 | assert(0); | |
270 | break; | |
271 | } | |
272 | } | |
273 | ||
f37d259d MD |
274 | static const char *field_type(struct lttng_event_field *field) |
275 | { | |
276 | switch(field->type) { | |
277 | case LTTNG_EVENT_FIELD_INTEGER: | |
278 | return "integer"; | |
279 | case LTTNG_EVENT_FIELD_ENUM: | |
280 | return "enum"; | |
281 | case LTTNG_EVENT_FIELD_FLOAT: | |
282 | return "float"; | |
283 | case LTTNG_EVENT_FIELD_STRING: | |
284 | return "string"; | |
285 | case LTTNG_EVENT_FIELD_OTHER: | |
286 | default: /* fall-through */ | |
287 | return "unknown"; | |
288 | } | |
289 | } | |
290 | ||
291 | /* | |
292 | * Pretty print single event fields. | |
293 | */ | |
294 | static void print_event_field(struct lttng_event_field *field) | |
295 | { | |
296 | if (!field->field_name[0]) { | |
297 | return; | |
298 | } | |
d8fbe2a9 | 299 | MSG("%sfield: %s (%s)%s", indent8, field->field_name, |
45a32634 | 300 | field_type(field), field->nowrite ? " [no write]" : ""); |
f37d259d MD |
301 | } |
302 | ||
fb14d0d8 JR |
303 | /* |
304 | * Machine interface | |
305 | * Jul and ust event listing | |
306 | */ | |
307 | static int mi_list_jul_ust_events(struct lttng_event *events, int count, | |
308 | struct lttng_domain *domain) | |
309 | { | |
310 | int ret, i; | |
311 | pid_t cur_pid = 0; | |
312 | char *cmdline = NULL; | |
313 | int pid_element_open = 0; | |
314 | ||
315 | /* Open domains element */ | |
316 | ret = mi_lttng_domains_open(writer); | |
317 | if (ret) { | |
318 | goto end; | |
319 | } | |
320 | ||
321 | /* Write domain */ | |
322 | ret = mi_lttng_domain(writer, domain, 1); | |
323 | if (ret) { | |
324 | goto end; | |
325 | } | |
326 | ||
327 | /* Open pids element */ | |
328 | ret = mi_lttng_pids_open(writer); | |
329 | if (ret) { | |
330 | goto end; | |
331 | } | |
332 | ||
333 | for (i = 0; i < count; i++) { | |
334 | if (cur_pid != events[i].pid) { | |
335 | if (pid_element_open) { | |
336 | /* Close the previous events and pid element */ | |
337 | ret = mi_lttng_close_multi_element(writer, 2); | |
338 | if (ret) { | |
339 | goto end; | |
340 | } | |
341 | pid_element_open = 0; | |
342 | } | |
343 | ||
344 | cur_pid = events[i].pid; | |
345 | cmdline = get_cmdline_by_pid(cur_pid); | |
346 | if (!cmdline) { | |
347 | ret = CMD_ERROR; | |
348 | goto end; | |
349 | } | |
350 | ||
351 | if (!pid_element_open) { | |
352 | /* Open and write a pid element */ | |
353 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
354 | if (ret) { | |
355 | goto error; | |
356 | } | |
357 | ||
358 | /* Open events element */ | |
359 | ret = mi_lttng_events_open(writer); | |
360 | if (ret) { | |
361 | goto error; | |
362 | } | |
363 | ||
364 | pid_element_open = 1; | |
365 | } | |
366 | free(cmdline); | |
367 | } | |
368 | ||
369 | /* Write an event */ | |
370 | ret = mi_lttng_event(writer, &events[i], 0); | |
371 | if (ret) { | |
372 | goto end; | |
373 | } | |
374 | } | |
375 | ||
376 | /* Close pids */ | |
377 | ret = mi_lttng_writer_close_element(writer); | |
378 | if (ret) { | |
379 | goto end; | |
380 | } | |
381 | ||
382 | /* Close domain, domains */ | |
383 | ret = mi_lttng_close_multi_element(writer, 2); | |
384 | end: | |
385 | return ret; | |
386 | error: | |
387 | free(cmdline); | |
388 | return ret; | |
389 | } | |
390 | ||
3c6a091f DG |
391 | static int list_jul_events(void) |
392 | { | |
fb14d0d8 | 393 | int i, size, ret = CMD_SUCCESS; |
3c6a091f DG |
394 | struct lttng_domain domain; |
395 | struct lttng_handle *handle; | |
396 | struct lttng_event *event_list; | |
397 | pid_t cur_pid = 0; | |
398 | char *cmdline = NULL; | |
399 | ||
400 | DBG("Getting JUL tracing events"); | |
401 | ||
402 | memset(&domain, 0, sizeof(domain)); | |
403 | domain.type = LTTNG_DOMAIN_JUL; | |
404 | ||
405 | handle = lttng_create_handle(NULL, &domain); | |
406 | if (handle == NULL) { | |
fb14d0d8 JR |
407 | ret = CMD_ERROR; |
408 | goto end; | |
3c6a091f DG |
409 | } |
410 | ||
411 | size = lttng_list_tracepoints(handle, &event_list); | |
412 | if (size < 0) { | |
413 | ERR("Unable to list JUL events: %s", lttng_strerror(size)); | |
fb14d0d8 JR |
414 | ret = CMD_ERROR; |
415 | goto end; | |
3c6a091f DG |
416 | } |
417 | ||
fb14d0d8 JR |
418 | if (lttng_opt_mi) { |
419 | /* Mi print */ | |
420 | ret = mi_list_jul_ust_events(event_list, size, &domain); | |
421 | if (ret) { | |
422 | ret = CMD_ERROR; | |
423 | goto error; | |
3c6a091f | 424 | } |
fb14d0d8 JR |
425 | } else { |
426 | /* Pretty print */ | |
427 | MSG("JUL events (Logger name):\n-------------------------"); | |
3c6a091f | 428 | |
fb14d0d8 JR |
429 | if (size == 0) { |
430 | MSG("None"); | |
431 | } | |
3c6a091f | 432 | |
fb14d0d8 JR |
433 | for (i = 0; i < size; i++) { |
434 | if (cur_pid != event_list[i].pid) { | |
435 | cur_pid = event_list[i].pid; | |
436 | cmdline = get_cmdline_by_pid(cur_pid); | |
437 | if (cmdline == NULL) { | |
438 | ret = CMD_ERROR; | |
439 | goto error; | |
440 | } | |
441 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
442 | free(cmdline); | |
443 | } | |
444 | MSG("%s- %s", indent6, event_list[i].name); | |
445 | } | |
3c6a091f | 446 | |
fb14d0d8 JR |
447 | MSG(""); |
448 | } | |
3c6a091f DG |
449 | |
450 | error: | |
fb14d0d8 JR |
451 | free(event_list); |
452 | end: | |
3c6a091f | 453 | lttng_destroy_handle(handle); |
fb14d0d8 | 454 | return ret; |
3c6a091f DG |
455 | } |
456 | ||
b551a063 DG |
457 | /* |
458 | * Ask session daemon for all user space tracepoints available. | |
459 | */ | |
460 | static int list_ust_events(void) | |
461 | { | |
fb14d0d8 | 462 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
463 | struct lttng_domain domain; |
464 | struct lttng_handle *handle; | |
465 | struct lttng_event *event_list; | |
466 | pid_t cur_pid = 0; | |
ea5cbc00 | 467 | char *cmdline = NULL; |
b551a063 | 468 | |
441c16a7 MD |
469 | memset(&domain, 0, sizeof(domain)); |
470 | ||
b551a063 DG |
471 | DBG("Getting UST tracing events"); |
472 | ||
473 | domain.type = LTTNG_DOMAIN_UST; | |
474 | ||
475 | handle = lttng_create_handle(NULL, &domain); | |
476 | if (handle == NULL) { | |
fb14d0d8 JR |
477 | ret = CMD_ERROR; |
478 | goto end; | |
b551a063 DG |
479 | } |
480 | ||
481 | size = lttng_list_tracepoints(handle, &event_list); | |
482 | if (size < 0) { | |
60e835ca | 483 | ERR("Unable to list UST events: %s", lttng_strerror(size)); |
fb14d0d8 JR |
484 | ret = CMD_ERROR; |
485 | goto error; | |
b551a063 DG |
486 | } |
487 | ||
fb14d0d8 JR |
488 | if (lttng_opt_mi) { |
489 | /* Mi print */ | |
490 | ret = mi_list_jul_ust_events(event_list, size, &domain); | |
491 | } else { | |
492 | /* Pretty print */ | |
493 | MSG("UST events:\n-------------"); | |
494 | ||
495 | if (size == 0) { | |
496 | MSG("None"); | |
497 | } | |
498 | ||
499 | for (i = 0; i < size; i++) { | |
500 | if (cur_pid != event_list[i].pid) { | |
501 | cur_pid = event_list[i].pid; | |
502 | cmdline = get_cmdline_by_pid(cur_pid); | |
503 | if (cmdline == NULL) { | |
504 | ret = CMD_ERROR; | |
505 | goto error; | |
506 | } | |
507 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
508 | free(cmdline); | |
509 | } | |
510 | print_events(&event_list[i]); | |
511 | } | |
b551a063 | 512 | |
fb14d0d8 | 513 | MSG(""); |
b551a063 DG |
514 | } |
515 | ||
fb14d0d8 JR |
516 | error: |
517 | free(event_list); | |
518 | end: | |
519 | lttng_destroy_handle(handle); | |
520 | return ret; | |
521 | } | |
522 | ||
523 | /* | |
524 | * Machine interface | |
525 | * List all ust event with their fields | |
526 | */ | |
527 | static int mi_list_ust_event_fields(struct lttng_event_field *fields, int count, | |
528 | struct lttng_domain *domain) | |
529 | { | |
530 | int ret, i; | |
531 | pid_t cur_pid = 0; | |
532 | char *cmdline = NULL; | |
533 | int pid_element_open = 0; | |
534 | int event_element_open = 0; | |
535 | struct lttng_event cur_event; | |
536 | ||
537 | /* Open domains element */ | |
538 | ret = mi_lttng_domains_open(writer); | |
539 | if (ret) { | |
540 | goto end; | |
541 | } | |
542 | ||
543 | /* Write domain */ | |
544 | ret = mi_lttng_domain(writer, domain, 1); | |
545 | if (ret) { | |
546 | goto end; | |
547 | } | |
548 | ||
549 | /* Open pids element */ | |
550 | ret = mi_lttng_pids_open(writer); | |
551 | if (ret) { | |
552 | goto end; | |
553 | } | |
554 | ||
555 | for (i = 0; i < count; i++) { | |
556 | if (cur_pid != fields[i].event.pid) { | |
557 | if (pid_element_open) { | |
558 | if (event_element_open) { | |
559 | /* | |
560 | * Close the previous fields element | |
561 | * and the previous event | |
562 | */ | |
563 | ret = mi_lttng_close_multi_element(writer, 2); | |
564 | if (ret) { | |
565 | goto end; | |
566 | } | |
567 | event_element_open = 0; | |
568 | } | |
569 | /* Close the previous events, pid element */ | |
570 | ret = mi_lttng_close_multi_element(writer, 2); | |
571 | if (ret) { | |
572 | goto end; | |
573 | } | |
574 | pid_element_open = 0; | |
575 | } | |
576 | ||
577 | cur_pid = fields[i].event.pid; | |
ea5cbc00 | 578 | cmdline = get_cmdline_by_pid(cur_pid); |
fb14d0d8 JR |
579 | if (!pid_element_open) { |
580 | /* Open and write a pid element */ | |
581 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
582 | if (ret) { | |
583 | goto error; | |
584 | } | |
585 | ||
586 | /* Open events element */ | |
587 | ret = mi_lttng_events_open(writer); | |
588 | if (ret) { | |
589 | goto error; | |
590 | } | |
591 | pid_element_open = 1; | |
592 | } | |
ea5cbc00 | 593 | free(cmdline); |
fb14d0d8 JR |
594 | /* Wipe current event since we are about to print a new PID. */ |
595 | memset(&cur_event, 0, sizeof(cur_event)); | |
b551a063 | 596 | } |
b551a063 | 597 | |
fb14d0d8 JR |
598 | if (strcmp(cur_event.name, fields[i].event.name) != 0) { |
599 | if (event_element_open) { | |
600 | /* Close the previous fields element and the previous event */ | |
601 | ret = mi_lttng_close_multi_element(writer, 2); | |
602 | if (ret) { | |
603 | goto end; | |
604 | } | |
605 | event_element_open = 0; | |
606 | } | |
607 | ||
608 | memcpy(&cur_event, &fields[i].event, | |
609 | sizeof(cur_event)); | |
b551a063 | 610 | |
fb14d0d8 JR |
611 | if (!event_element_open) { |
612 | /* Open and write the event */ | |
613 | ret = mi_lttng_event(writer, &cur_event, 1); | |
614 | if (ret) { | |
615 | goto end; | |
616 | } | |
617 | ||
618 | /* Open a fields element */ | |
619 | ret = mi_lttng_event_fields_open(writer); | |
620 | if (ret) { | |
621 | goto end; | |
622 | } | |
623 | event_element_open = 1; | |
624 | } | |
625 | } | |
b551a063 | 626 | |
fb14d0d8 JR |
627 | /* Print the event_field */ |
628 | ret = mi_lttng_event_field(writer, &fields[i]); | |
629 | if (ret) { | |
630 | goto end; | |
631 | } | |
632 | } | |
b551a063 | 633 | |
fb14d0d8 JR |
634 | /* Close pids, domain, domains */ |
635 | ret = mi_lttng_close_multi_element(writer, 3); | |
636 | end: | |
637 | return ret; | |
b551a063 | 638 | error: |
fb14d0d8 JR |
639 | free(cmdline); |
640 | return ret; | |
b551a063 | 641 | } |
f3ed775e | 642 | |
f37d259d MD |
643 | /* |
644 | * Ask session daemon for all user space tracepoint fields available. | |
645 | */ | |
646 | static int list_ust_event_fields(void) | |
647 | { | |
fb14d0d8 | 648 | int i, size, ret = CMD_SUCCESS; |
f37d259d MD |
649 | struct lttng_domain domain; |
650 | struct lttng_handle *handle; | |
651 | struct lttng_event_field *event_field_list; | |
652 | pid_t cur_pid = 0; | |
ea5cbc00 CB |
653 | char *cmdline = NULL; |
654 | ||
f37d259d MD |
655 | struct lttng_event cur_event; |
656 | ||
657 | memset(&domain, 0, sizeof(domain)); | |
658 | memset(&cur_event, 0, sizeof(cur_event)); | |
659 | ||
660 | DBG("Getting UST tracing event fields"); | |
661 | ||
662 | domain.type = LTTNG_DOMAIN_UST; | |
663 | ||
664 | handle = lttng_create_handle(NULL, &domain); | |
665 | if (handle == NULL) { | |
fb14d0d8 JR |
666 | ret = CMD_ERROR; |
667 | goto end; | |
f37d259d MD |
668 | } |
669 | ||
670 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
671 | if (size < 0) { | |
60e835ca | 672 | ERR("Unable to list UST event fields: %s", lttng_strerror(size)); |
fb14d0d8 JR |
673 | ret = CMD_ERROR; |
674 | goto end; | |
f37d259d MD |
675 | } |
676 | ||
fb14d0d8 JR |
677 | if (lttng_opt_mi) { |
678 | /* Mi print */ | |
679 | ret = mi_list_ust_event_fields(event_field_list, size, &domain); | |
680 | if (ret) { | |
681 | ret = CMD_ERROR; | |
682 | goto error; | |
683 | } | |
684 | } else { | |
685 | /* Pretty print */ | |
686 | MSG("UST events:\n-------------"); | |
f37d259d | 687 | |
fb14d0d8 JR |
688 | if (size == 0) { |
689 | MSG("None"); | |
f37d259d | 690 | } |
fb14d0d8 JR |
691 | |
692 | for (i = 0; i < size; i++) { | |
693 | if (cur_pid != event_field_list[i].event.pid) { | |
694 | cur_pid = event_field_list[i].event.pid; | |
695 | cmdline = get_cmdline_by_pid(cur_pid); | |
696 | if (cmdline == NULL) { | |
697 | ret = CMD_ERROR; | |
698 | goto error; | |
699 | } | |
700 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
701 | free(cmdline); | |
702 | /* Wipe current event since we are about to print a new PID. */ | |
703 | memset(&cur_event, 0, sizeof(cur_event)); | |
704 | } | |
705 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
706 | print_events(&event_field_list[i].event); | |
707 | memcpy(&cur_event, &event_field_list[i].event, | |
708 | sizeof(cur_event)); | |
709 | } | |
710 | print_event_field(&event_field_list[i]); | |
f37d259d | 711 | } |
f37d259d | 712 | |
fb14d0d8 JR |
713 | MSG(""); |
714 | } | |
f37d259d | 715 | |
fb14d0d8 | 716 | error: |
f37d259d | 717 | free(event_field_list); |
fb14d0d8 | 718 | end: |
f37d259d | 719 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
720 | return ret; |
721 | } | |
f37d259d | 722 | |
fb14d0d8 JR |
723 | /* |
724 | * Machine interface | |
725 | * Print a list of kernel events | |
726 | */ | |
727 | static int mi_list_kernel_events(struct lttng_event *events, int count, | |
728 | struct lttng_domain *domain) | |
729 | { | |
730 | int ret, i; | |
f37d259d | 731 | |
fb14d0d8 JR |
732 | /* Open domains element */ |
733 | ret = mi_lttng_domains_open(writer); | |
734 | if (ret) { | |
735 | goto end; | |
736 | } | |
737 | ||
738 | /* Write domain */ | |
739 | ret = mi_lttng_domain(writer, domain, 1); | |
740 | if (ret) { | |
741 | goto end; | |
742 | } | |
743 | ||
744 | /* Open events */ | |
745 | ret = mi_lttng_events_open(writer); | |
746 | if (ret) { | |
747 | goto end; | |
748 | } | |
749 | ||
750 | for (i = 0; i < count; i++) { | |
751 | mi_lttng_event(writer, &events[i], 0); | |
752 | if (ret) { | |
753 | goto end; | |
754 | } | |
755 | } | |
756 | ||
757 | /* close events, domain and domains */ | |
758 | ret = mi_lttng_close_multi_element(writer, 3); | |
759 | if (ret) { | |
760 | goto end; | |
761 | } | |
762 | ||
763 | end: | |
764 | return ret; | |
f37d259d MD |
765 | } |
766 | ||
f3ed775e | 767 | /* |
fb14d0d8 | 768 | * Ask for all trace events in the kernel |
f3ed775e | 769 | */ |
9f19cc17 | 770 | static int list_kernel_events(void) |
f3ed775e | 771 | { |
fb14d0d8 | 772 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
773 | struct lttng_domain domain; |
774 | struct lttng_handle *handle; | |
9f19cc17 | 775 | struct lttng_event *event_list; |
f3ed775e | 776 | |
441c16a7 MD |
777 | memset(&domain, 0, sizeof(domain)); |
778 | ||
b551a063 DG |
779 | DBG("Getting kernel tracing events"); |
780 | ||
781 | domain.type = LTTNG_DOMAIN_KERNEL; | |
782 | ||
783 | handle = lttng_create_handle(NULL, &domain); | |
784 | if (handle == NULL) { | |
fb14d0d8 | 785 | ret = CMD_ERROR; |
b551a063 DG |
786 | goto error; |
787 | } | |
f3ed775e | 788 | |
cd80958d | 789 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 | 790 | if (size < 0) { |
60e835ca | 791 | ERR("Unable to list kernel events: %s", lttng_strerror(size)); |
ef021732 | 792 | lttng_destroy_handle(handle); |
fb14d0d8 | 793 | return CMD_ERROR; |
f3ed775e DG |
794 | } |
795 | ||
fb14d0d8 JR |
796 | if (lttng_opt_mi) { |
797 | /* Mi print */ | |
798 | ret = mi_list_kernel_events(event_list, size, &domain); | |
799 | if (ret) { | |
800 | ret = CMD_ERROR; | |
801 | goto end; | |
802 | } | |
803 | } else { | |
804 | MSG("Kernel events:\n-------------"); | |
f3ed775e | 805 | |
fb14d0d8 JR |
806 | for (i = 0; i < size; i++) { |
807 | print_events(&event_list[i]); | |
808 | } | |
f3ed775e | 809 | |
fb14d0d8 JR |
810 | MSG(""); |
811 | } | |
b551a063 | 812 | |
fb14d0d8 | 813 | end: |
f3ed775e DG |
814 | free(event_list); |
815 | ||
ef021732 | 816 | lttng_destroy_handle(handle); |
fb14d0d8 | 817 | return ret; |
b551a063 DG |
818 | |
819 | error: | |
ef021732 | 820 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
821 | return ret; |
822 | } | |
823 | ||
824 | /* | |
825 | * Machine Interface | |
826 | * Print a list of jul events | |
827 | */ | |
828 | static int mi_list_session_jul_events(struct lttng_event *events, int count) | |
829 | { | |
830 | int ret, i; | |
831 | ||
832 | /* Open events element */ | |
833 | ret = mi_lttng_events_open(writer); | |
834 | if (ret) { | |
835 | goto end; | |
836 | } | |
837 | ||
838 | for (i = 0; i < count; i++) { | |
839 | ret = mi_lttng_event(writer, &events[i], 0); | |
840 | if (ret) { | |
841 | goto end; | |
842 | } | |
843 | } | |
844 | ||
845 | /* Close events element */ | |
846 | ret = mi_lttng_writer_close_element(writer); | |
847 | ||
848 | end: | |
849 | return ret; | |
f3ed775e DG |
850 | } |
851 | ||
3c6a091f DG |
852 | /* |
853 | * List JUL events for a specific session using the handle. | |
854 | * | |
855 | * Return CMD_SUCCESS on success else a negative value. | |
856 | */ | |
857 | static int list_session_jul_events(void) | |
858 | { | |
fb14d0d8 | 859 | int ret = CMD_SUCCESS, count, i; |
3c6a091f DG |
860 | struct lttng_event *events = NULL; |
861 | ||
862 | count = lttng_list_events(handle, "", &events); | |
863 | if (count < 0) { | |
fb14d0d8 JR |
864 | ret = CMD_ERROR; |
865 | ERR("%s", lttng_strerror(count)); | |
3c6a091f DG |
866 | goto error; |
867 | } | |
868 | ||
fb14d0d8 JR |
869 | if (lttng_opt_mi) { |
870 | /* Mi print */ | |
871 | ret = mi_list_session_jul_events(events, count); | |
872 | if (ret) { | |
873 | ret = CMD_ERROR; | |
874 | goto end; | |
875 | } | |
876 | } else { | |
877 | /* Pretty print */ | |
878 | MSG("Events (Logger name):\n---------------------"); | |
879 | if (count == 0) { | |
880 | MSG("%sNone\n", indent6); | |
881 | goto end; | |
882 | } | |
883 | ||
884 | for (i = 0; i < count; i++) { | |
885 | MSG("%s- %s%s (loglevel%s %s)", indent4, events[i].name, | |
886 | enabled_string(events[i].enabled), | |
887 | logleveltype_string(events[i].loglevel_type), | |
136f2f81 | 888 | mi_lttng_loglevel_string(events[i].loglevel)); |
fb14d0d8 JR |
889 | } |
890 | ||
891 | MSG(""); | |
892 | } | |
893 | ||
894 | end: | |
895 | free(events); | |
896 | error: | |
897 | return ret; | |
898 | } | |
899 | ||
900 | /* | |
901 | * Machine interface | |
902 | * print a list of event | |
903 | */ | |
904 | static int mi_list_events(struct lttng_event *events, int count) | |
905 | { | |
906 | int ret, i; | |
907 | ||
908 | /* Open events element */ | |
909 | ret = mi_lttng_events_open(writer); | |
910 | if (ret) { | |
3c6a091f DG |
911 | goto end; |
912 | } | |
913 | ||
914 | for (i = 0; i < count; i++) { | |
fb14d0d8 JR |
915 | ret = mi_lttng_event(writer, &events[i], 0); |
916 | if (ret) { | |
917 | goto end; | |
918 | } | |
3c6a091f DG |
919 | } |
920 | ||
fb14d0d8 JR |
921 | /* Close events element */ |
922 | ret = mi_lttng_writer_close_element(writer); | |
3c6a091f DG |
923 | |
924 | end: | |
3c6a091f DG |
925 | return ret; |
926 | } | |
927 | ||
f3ed775e | 928 | /* |
9f19cc17 | 929 | * List events of channel of session and domain. |
f3ed775e | 930 | */ |
cd80958d | 931 | static int list_events(const char *channel_name) |
f3ed775e | 932 | { |
fb14d0d8 | 933 | int ret = CMD_SUCCESS, count, i; |
9f19cc17 | 934 | struct lttng_event *events = NULL; |
f3ed775e | 935 | |
cd80958d | 936 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e | 937 | if (count < 0) { |
fb14d0d8 JR |
938 | ret = CMD_ERROR; |
939 | ERR("%s", lttng_strerror(count)); | |
f3ed775e DG |
940 | goto error; |
941 | } | |
942 | ||
fb14d0d8 JR |
943 | if (lttng_opt_mi) { |
944 | /* Mi print */ | |
945 | ret = mi_list_events(events, count); | |
946 | if (ret) { | |
947 | ret = CMD_ERROR; | |
948 | goto end; | |
949 | } | |
950 | } else { | |
951 | /* Pretty print */ | |
952 | MSG("\n%sEvents:", indent4); | |
953 | if (count == 0) { | |
954 | MSG("%sNone\n", indent6); | |
955 | goto end; | |
956 | } | |
f3ed775e | 957 | |
fb14d0d8 JR |
958 | for (i = 0; i < count; i++) { |
959 | print_events(&events[i]); | |
960 | } | |
f3ed775e | 961 | |
fb14d0d8 JR |
962 | MSG(""); |
963 | } | |
9f19cc17 | 964 | end: |
0e428499 | 965 | free(events); |
f3ed775e DG |
966 | error: |
967 | return ret; | |
968 | } | |
969 | ||
970 | /* | |
9f19cc17 DG |
971 | * Pretty print channel |
972 | */ | |
973 | static void print_channel(struct lttng_channel *channel) | |
974 | { | |
464dd62d | 975 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
976 | |
977 | MSG("%sAttributes:", indent4); | |
a5bbe8f6 DG |
978 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); |
979 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
9f19cc17 | 980 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); |
a5bbe8f6 DG |
981 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); |
982 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
2f785fe7 DG |
983 | MSG("%strace file count: %" PRIu64, indent6, channel->attr.tracefile_count); |
984 | MSG("%strace file size (bytes): %" PRIu64, indent6, channel->attr.tracefile_size); | |
9f19cc17 DG |
985 | switch (channel->attr.output) { |
986 | case LTTNG_EVENT_SPLICE: | |
987 | MSG("%soutput: splice()", indent6); | |
988 | break; | |
989 | case LTTNG_EVENT_MMAP: | |
990 | MSG("%soutput: mmap()", indent6); | |
991 | break; | |
992 | } | |
993 | } | |
994 | ||
fb14d0d8 JR |
995 | /* |
996 | * Machine interface | |
997 | * Print a list of channel | |
998 | * | |
999 | */ | |
1000 | static int mi_list_channels(struct lttng_channel *channels, int count, | |
1001 | const char *channel_name) | |
1002 | { | |
1003 | int i, ret; | |
1004 | unsigned int chan_found = 0; | |
1005 | ||
1006 | /* Open channels element */ | |
1007 | ret = mi_lttng_channels_open(writer); | |
1008 | if (ret) { | |
1009 | goto error; | |
1010 | } | |
1011 | ||
1012 | for (i = 0; i < count; i++) { | |
1013 | if (channel_name != NULL) { | |
1014 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1015 | chan_found = 1; | |
1016 | } else { | |
1017 | continue; | |
1018 | } | |
1019 | } | |
1020 | ||
1021 | /* Write channel element and leave it open */ | |
1022 | ret = mi_lttng_channel(writer, &channels[i], 1); | |
1023 | if (ret) { | |
1024 | goto error; | |
1025 | } | |
1026 | ||
1027 | /* Listing events per channel */ | |
1028 | ret = list_events(channels[i].name); | |
1029 | if (ret) { | |
1030 | goto error; | |
1031 | } | |
1032 | ||
1033 | /* Closing the channel element we opened earlier */ | |
1034 | ret = mi_lttng_writer_close_element(writer); | |
1035 | if (ret) { | |
1036 | goto error; | |
1037 | } | |
1038 | ||
1039 | if (chan_found) { | |
1040 | break; | |
1041 | } | |
1042 | } | |
1043 | ||
1044 | /* Close channels element */ | |
1045 | ret = mi_lttng_writer_close_element(writer); | |
1046 | if (ret) { | |
1047 | goto error; | |
1048 | } | |
1049 | ||
1050 | error: | |
1051 | return ret; | |
1052 | } | |
1053 | ||
9f19cc17 DG |
1054 | /* |
1055 | * List channel(s) of session and domain. | |
f3ed775e | 1056 | * |
9f19cc17 | 1057 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 1058 | */ |
cd80958d | 1059 | static int list_channels(const char *channel_name) |
f3ed775e | 1060 | { |
9f19cc17 DG |
1061 | int count, i, ret = CMD_SUCCESS; |
1062 | unsigned int chan_found = 0; | |
1063 | struct lttng_channel *channels = NULL; | |
f3ed775e | 1064 | |
3e25cb20 | 1065 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 1066 | |
cd80958d | 1067 | count = lttng_list_channels(handle, &channels); |
f3ed775e | 1068 | if (count < 0) { |
c7d620a2 DG |
1069 | switch (-count) { |
1070 | case LTTNG_ERR_KERN_CHAN_NOT_FOUND: | |
fb14d0d8 JR |
1071 | if (lttng_opt_mi) { |
1072 | /* When printing mi this is not an error | |
1073 | * but an empty channels element */ | |
1074 | count = 0; | |
1075 | } else { | |
1076 | ret = CMD_SUCCESS; | |
1077 | WARN("No kernel channel"); | |
1078 | goto error_channels; | |
1079 | } | |
c7d620a2 DG |
1080 | break; |
1081 | default: | |
1082 | /* We had a real error */ | |
fb14d0d8 JR |
1083 | ret = CMD_ERROR; |
1084 | ERR("%s", lttng_strerror(count)); | |
1085 | goto error_channels; | |
60e835ca | 1086 | break; |
c7d620a2 | 1087 | } |
f3ed775e DG |
1088 | } |
1089 | ||
fb14d0d8 JR |
1090 | if (lttng_opt_mi) { |
1091 | /* Mi print */ | |
1092 | ret = mi_list_channels(channels, count, channel_name); | |
1093 | if (ret) { | |
1094 | ret = CMD_ERROR; | |
1095 | goto error; | |
1096 | } | |
1097 | } else { | |
1098 | /* Pretty print */ | |
1099 | if (channel_name == NULL) { | |
1100 | MSG("Channels:\n-------------"); | |
1101 | } | |
9f19cc17 | 1102 | |
fb14d0d8 JR |
1103 | for (i = 0; i < count; i++) { |
1104 | if (channel_name != NULL) { | |
1105 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1106 | chan_found = 1; | |
1107 | } else { | |
1108 | continue; | |
1109 | } | |
1110 | } | |
1111 | print_channel(&channels[i]); | |
1112 | ||
1113 | /* Listing events per channel */ | |
1114 | ret = list_events(channels[i].name); | |
1115 | if (ret) { | |
1116 | goto error; | |
1117 | } | |
1118 | ||
1119 | if (chan_found) { | |
1120 | break; | |
9f19cc17 DG |
1121 | } |
1122 | } | |
9f19cc17 | 1123 | |
fb14d0d8 JR |
1124 | if (!chan_found && channel_name != NULL) { |
1125 | ret = CMD_ERROR; | |
1126 | ERR("Channel %s not found", channel_name); | |
1127 | goto error; | |
9f19cc17 | 1128 | } |
fb14d0d8 JR |
1129 | } |
1130 | error: | |
1131 | free(channels); | |
9f19cc17 | 1132 | |
fb14d0d8 JR |
1133 | error_channels: |
1134 | return ret; | |
1135 | } | |
1136 | ||
1137 | /* | |
1138 | * Machine interface | |
1139 | * Find the session with session_name as name | |
1140 | * and print his informations. | |
1141 | */ | |
1142 | static int mi_list_session(const char *session_name, | |
1143 | struct lttng_session *sessions, int count) | |
1144 | { | |
1145 | int ret, i; | |
1146 | unsigned int session_found = 0; | |
1147 | ||
1148 | if (session_name == NULL) { | |
1149 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1150 | goto end; | |
1151 | } | |
1152 | ||
1153 | for (i = 0; i < count; i++) { | |
1154 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1155 | /* We need to leave it open to append other informations | |
1156 | * like domain, channel, events etc.*/ | |
1157 | session_found = 1; | |
1158 | ret = mi_lttng_session(writer, &sessions[i], 1); | |
1159 | if (ret) { | |
1160 | goto end; | |
1161 | } | |
9f19cc17 | 1162 | break; |
f3ed775e | 1163 | } |
f3ed775e DG |
1164 | } |
1165 | ||
fb14d0d8 JR |
1166 | if (!session_found) { |
1167 | ERR("Session '%s' not found", session_name); | |
1168 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1169 | goto end; | |
9f19cc17 | 1170 | } |
f3ed775e | 1171 | |
fb14d0d8 JR |
1172 | end: |
1173 | return ret; | |
1174 | } | |
f3ed775e | 1175 | |
fb14d0d8 JR |
1176 | /* |
1177 | * Machine interface | |
1178 | * List all availables session | |
1179 | */ | |
1180 | static int mi_list_sessions(struct lttng_session *sessions, int count) | |
1181 | { | |
1182 | int ret, i; | |
ae856491 | 1183 | |
fb14d0d8 JR |
1184 | /* Opening sessions element */ |
1185 | ret = mi_lttng_sessions_open(writer); | |
1186 | if (ret) { | |
1187 | goto end; | |
1188 | } | |
1189 | ||
1190 | /* Listing sessions */ | |
1191 | for (i = 0; i < count; i++) { | |
1192 | ret = mi_lttng_session(writer, &sessions[i], 0); | |
1193 | if (ret) { | |
1194 | goto end; | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | /* Closing sessions element */ | |
1199 | ret = mi_lttng_writer_close_element(writer); | |
1200 | if (ret) { | |
1201 | goto end; | |
1202 | } | |
1203 | ||
1204 | end: | |
f3ed775e DG |
1205 | return ret; |
1206 | } | |
1207 | ||
1208 | /* | |
9f19cc17 | 1209 | * List available tracing session. List only basic information. |
f3ed775e | 1210 | * |
9f19cc17 | 1211 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 1212 | */ |
9f19cc17 | 1213 | static int list_sessions(const char *session_name) |
f3ed775e | 1214 | { |
fb14d0d8 JR |
1215 | int ret = CMD_SUCCESS; |
1216 | int count, i; | |
9f19cc17 DG |
1217 | unsigned int session_found = 0; |
1218 | struct lttng_session *sessions; | |
1219 | ||
1220 | count = lttng_list_sessions(&sessions); | |
1221 | DBG("Session count %d", count); | |
1222 | if (count < 0) { | |
fb14d0d8 JR |
1223 | ret = CMD_ERROR; |
1224 | ERR("%s", lttng_strerror(count)); | |
d32fb093 | 1225 | goto end; |
9f19cc17 DG |
1226 | } |
1227 | ||
fb14d0d8 JR |
1228 | if (lttng_opt_mi) { |
1229 | /* Mi */ | |
1230 | if (session_name == NULL) { | |
1231 | /* List all session */ | |
1232 | ret = mi_list_sessions(sessions, count); | |
1233 | } else { | |
1234 | /* Note : this return an open session element */ | |
1235 | ret = mi_list_session(session_name, sessions, count); | |
1236 | } | |
1237 | if (ret) { | |
1238 | ret = CMD_ERROR; | |
1239 | goto error; | |
1240 | } | |
1241 | } else { | |
1242 | /* Pretty print */ | |
1243 | if (count == 0) { | |
1244 | MSG("Currently no available tracing session"); | |
1245 | ret = CMD_ERROR; | |
1246 | goto end; | |
1247 | } | |
9f19cc17 | 1248 | |
fb14d0d8 JR |
1249 | if (session_name == NULL) { |
1250 | MSG("Available tracing sessions:"); | |
1251 | } | |
1252 | ||
1253 | ||
1254 | for (i = 0; i < count; i++) { | |
1255 | if (session_name != NULL) { | |
1256 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1257 | session_found = 1; | |
1258 | MSG("Tracing session %s: [%s%s]", session_name, | |
1259 | active_string(sessions[i].enabled), | |
1260 | snapshot_string(sessions[i].snapshot_mode)); | |
1261 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); | |
1262 | break; | |
1263 | } | |
1264 | } else { | |
1265 | MSG(" %d) %s (%s) [%s%s]", i + 1, | |
1266 | sessions[i].name, sessions[i].path, | |
2cbf8fed DG |
1267 | active_string(sessions[i].enabled), |
1268 | snapshot_string(sessions[i].snapshot_mode)); | |
2f785fe7 DG |
1269 | MSG("%sTrace path: %s", indent4, sessions[i].path); |
1270 | MSG("%sLive timer interval (usec): %u\n", indent4, | |
1271 | sessions[i].live_timer_interval); | |
9f19cc17 DG |
1272 | break; |
1273 | } | |
fb14d0d8 JR |
1274 | } |
1275 | ||
1276 | if (!session_found && session_name != NULL) { | |
1277 | ERR("Session '%s' not found", session_name); | |
1278 | ret = CMD_ERROR; | |
1279 | goto error; | |
1280 | } | |
1281 | ||
1282 | if (session_name == NULL) { | |
1283 | MSG("\nUse lttng list <session_name> for more details"); | |
9f19cc17 DG |
1284 | } |
1285 | } | |
1286 | ||
fb14d0d8 | 1287 | error: |
9f19cc17 | 1288 | free(sessions); |
fb14d0d8 JR |
1289 | end: |
1290 | return ret; | |
1291 | } | |
9f19cc17 | 1292 | |
fb14d0d8 JR |
1293 | |
1294 | /* | |
1295 | * Machine Interface | |
1296 | * list available domain(s) for a session. | |
1297 | */ | |
1298 | static int mi_list_domains(struct lttng_domain *domains, int count) | |
1299 | { | |
1300 | int i, ret; | |
1301 | /* Open domains element */ | |
1302 | ret = mi_lttng_domains_open(writer); | |
1303 | if (ret) { | |
1304 | goto end; | |
9f19cc17 DG |
1305 | } |
1306 | ||
fb14d0d8 JR |
1307 | for (i = 0; i < count; i++) { |
1308 | ret = mi_lttng_domain(writer, &domains[i] , 0); | |
1309 | if (ret) { | |
1310 | goto end; | |
1311 | } | |
9f19cc17 | 1312 | } |
f3ed775e | 1313 | |
fb14d0d8 JR |
1314 | /* Closing domains element */ |
1315 | ret = mi_lttng_writer_close_element(writer); | |
1316 | if (ret) { | |
1317 | goto end; | |
1318 | } | |
d32fb093 | 1319 | end: |
f3ed775e DG |
1320 | return ret; |
1321 | } | |
f3ed775e DG |
1322 | |
1323 | /* | |
9f19cc17 | 1324 | * List available domain(s) for a session. |
f3ed775e | 1325 | */ |
330be774 | 1326 | static int list_domains(const char *session_name) |
f3ed775e | 1327 | { |
9f19cc17 DG |
1328 | int i, count, ret = CMD_SUCCESS; |
1329 | struct lttng_domain *domains = NULL; | |
1330 | ||
9f19cc17 | 1331 | |
330be774 | 1332 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 | 1333 | if (count < 0) { |
fb14d0d8 JR |
1334 | ret = CMD_ERROR; |
1335 | ERR("%s", lttng_strerror(count)); | |
9f19cc17 DG |
1336 | goto end; |
1337 | } | |
1338 | ||
fb14d0d8 JR |
1339 | if (lttng_opt_mi) { |
1340 | /* Mi output */ | |
1341 | ret = mi_list_domains(domains, count); | |
1342 | if (ret) { | |
1343 | ret = CMD_ERROR; | |
1344 | goto error; | |
1345 | } | |
1346 | } else { | |
1347 | /* Pretty print */ | |
1348 | MSG("Domains:\n-------------"); | |
1349 | if (count == 0) { | |
1350 | MSG(" None"); | |
1351 | goto end; | |
1352 | } | |
1353 | ||
1354 | for (i = 0; i < count; i++) { | |
1355 | switch (domains[i].type) { | |
1356 | case LTTNG_DOMAIN_KERNEL: | |
1357 | MSG(" - Kernel"); | |
1358 | break; | |
1359 | case LTTNG_DOMAIN_UST: | |
1360 | MSG(" - UST global"); | |
1361 | break; | |
1362 | case LTTNG_DOMAIN_JUL: | |
1363 | MSG(" - JUL (Java Util Logging)"); | |
1364 | break; | |
1365 | default: | |
1366 | break; | |
1367 | } | |
9f19cc17 DG |
1368 | } |
1369 | } | |
1370 | ||
fb14d0d8 | 1371 | error: |
9f19cc17 DG |
1372 | free(domains); |
1373 | ||
fb14d0d8 | 1374 | end: |
9f19cc17 | 1375 | return ret; |
f3ed775e | 1376 | } |
f3ed775e DG |
1377 | |
1378 | /* | |
9f19cc17 | 1379 | * The 'list <options>' first level command |
f3ed775e DG |
1380 | */ |
1381 | int cmd_list(int argc, const char **argv) | |
1382 | { | |
c617c0c6 | 1383 | int opt, ret = CMD_SUCCESS; |
9f19cc17 | 1384 | const char *session_name; |
f3ed775e | 1385 | static poptContext pc; |
9f19cc17 DG |
1386 | struct lttng_domain domain; |
1387 | struct lttng_domain *domains = NULL; | |
f3ed775e | 1388 | |
441c16a7 MD |
1389 | memset(&domain, 0, sizeof(domain)); |
1390 | ||
9f19cc17 | 1391 | if (argc < 1) { |
f3ed775e | 1392 | usage(stderr); |
ca1c3607 | 1393 | ret = CMD_ERROR; |
f3ed775e DG |
1394 | goto end; |
1395 | } | |
1396 | ||
1397 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1398 | poptReadDefaultConfig(pc, 0); | |
1399 | ||
1400 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1401 | switch (opt) { | |
1402 | case OPT_HELP: | |
ca1c3607 | 1403 | usage(stdout); |
f3ed775e | 1404 | goto end; |
eeac7d46 MD |
1405 | case OPT_USERSPACE: |
1406 | opt_userspace = 1; | |
eeac7d46 | 1407 | break; |
679b4943 SM |
1408 | case OPT_LIST_OPTIONS: |
1409 | list_cmd_options(stdout, long_options); | |
679b4943 | 1410 | goto end; |
f3ed775e DG |
1411 | default: |
1412 | usage(stderr); | |
1413 | ret = CMD_UNDEFINED; | |
1414 | goto end; | |
1415 | } | |
1416 | } | |
1417 | ||
fb14d0d8 JR |
1418 | /* Mi check */ |
1419 | if (lttng_opt_mi) { | |
1420 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1421 | if (!writer) { | |
1422 | ret = CMD_ERROR; | |
1423 | goto end; | |
1424 | } | |
1425 | ||
1426 | /* Open command element */ | |
1427 | ret = mi_lttng_writer_command_open(writer, | |
1428 | mi_lttng_element_command_list); | |
1429 | if (ret) { | |
1430 | ret = CMD_ERROR; | |
1431 | goto end; | |
1432 | } | |
1433 | ||
1434 | /* Open output element */ | |
1435 | ret = mi_lttng_writer_open_element(writer, | |
1436 | mi_lttng_element_command_output); | |
1437 | if (ret) { | |
1438 | ret = CMD_ERROR; | |
1439 | goto end; | |
1440 | } | |
1441 | } | |
1442 | ||
9f19cc17 DG |
1443 | /* Get session name (trailing argument) */ |
1444 | session_name = poptGetArg(pc); | |
b551a063 | 1445 | DBG2("Session name: %s", session_name); |
9f19cc17 | 1446 | |
cd80958d DG |
1447 | if (opt_kernel) { |
1448 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
1449 | } else if (opt_userspace) { |
1450 | DBG2("Listing userspace global domain"); | |
1451 | domain.type = LTTNG_DOMAIN_UST; | |
3c6a091f DG |
1452 | } else if (opt_jul) { |
1453 | DBG2("Listing JUL domain"); | |
1454 | domain.type = LTTNG_DOMAIN_JUL; | |
cd80958d DG |
1455 | } |
1456 | ||
3c6a091f | 1457 | if (opt_kernel || opt_userspace || opt_jul) { |
aa5de748 MD |
1458 | handle = lttng_create_handle(session_name, &domain); |
1459 | if (handle == NULL) { | |
1460 | ret = CMD_FATAL; | |
1461 | goto end; | |
1462 | } | |
cd80958d DG |
1463 | } |
1464 | ||
9f19cc17 | 1465 | if (session_name == NULL) { |
3c6a091f | 1466 | if (!opt_kernel && !opt_userspace && !opt_jul) { |
b551a063 | 1467 | ret = list_sessions(NULL); |
fb14d0d8 | 1468 | if (ret) { |
b551a063 DG |
1469 | goto end; |
1470 | } | |
1471 | } | |
9f19cc17 DG |
1472 | if (opt_kernel) { |
1473 | ret = list_kernel_events(); | |
fb14d0d8 | 1474 | if (ret) { |
9f19cc17 DG |
1475 | goto end; |
1476 | } | |
b551a063 DG |
1477 | } |
1478 | if (opt_userspace) { | |
f37d259d MD |
1479 | if (opt_fields) { |
1480 | ret = list_ust_event_fields(); | |
1481 | } else { | |
1482 | ret = list_ust_events(); | |
1483 | } | |
fb14d0d8 | 1484 | if (ret) { |
9f19cc17 DG |
1485 | goto end; |
1486 | } | |
1487 | } | |
3c6a091f DG |
1488 | if (opt_jul) { |
1489 | ret = list_jul_events(); | |
fb14d0d8 | 1490 | if (ret) { |
3c6a091f DG |
1491 | goto end; |
1492 | } | |
1493 | } | |
9f19cc17 DG |
1494 | } else { |
1495 | /* List session attributes */ | |
fb14d0d8 JR |
1496 | if (lttng_opt_mi) { |
1497 | /* Open element sessions | |
1498 | * Present for xml consistency */ | |
1499 | ret = mi_lttng_sessions_open(writer); | |
1500 | if (ret) { | |
1501 | goto end; | |
1502 | } | |
1503 | } | |
1504 | /* MI: the ouptut of list_sessions is an unclosed session element */ | |
9f19cc17 | 1505 | ret = list_sessions(session_name); |
fb14d0d8 | 1506 | if (ret) { |
9f19cc17 DG |
1507 | goto end; |
1508 | } | |
1509 | ||
1510 | /* Domain listing */ | |
1511 | if (opt_domain) { | |
330be774 | 1512 | ret = list_domains(session_name); |
9f19cc17 DG |
1513 | goto end; |
1514 | } | |
1515 | ||
fb14d0d8 | 1516 | /* Channel listing */ |
1c3de747 | 1517 | if (opt_kernel || opt_userspace) { |
fb14d0d8 JR |
1518 | if (lttng_opt_mi) { |
1519 | /* Add of domains and domain element for xml | |
1520 | * consistency and validation | |
1521 | */ | |
1522 | ret = mi_lttng_domains_open(writer); | |
1523 | if (ret) { | |
1524 | goto end; | |
1525 | } | |
1526 | ||
1527 | /* Open domain and leave it open for | |
1528 | * nested channels printing */ | |
1529 | ret = mi_lttng_domain(writer, &domain, 1); | |
1530 | if (ret) { | |
1531 | goto end; | |
1532 | } | |
1533 | ||
1534 | } | |
1535 | ||
cd80958d | 1536 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1537 | if (ret) { |
1538 | goto end; | |
1539 | } | |
1540 | ||
1541 | if (lttng_opt_mi) { | |
1542 | /* Close domain and domain element */ | |
1543 | ret = mi_lttng_close_multi_element(writer, 2); | |
1544 | } | |
1545 | if (ret) { | |
9f19cc17 DG |
1546 | goto end; |
1547 | } | |
fb14d0d8 JR |
1548 | |
1549 | ||
9f19cc17 | 1550 | } else { |
c617c0c6 MD |
1551 | int i, nb_domain; |
1552 | ||
9f19cc17 | 1553 | /* We want all domain(s) */ |
330be774 | 1554 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 1555 | if (nb_domain < 0) { |
fb14d0d8 JR |
1556 | ret = CMD_ERROR; |
1557 | ERR("%s", lttng_strerror(nb_domain)); | |
9f19cc17 DG |
1558 | goto end; |
1559 | } | |
1560 | ||
fb14d0d8 JR |
1561 | if (lttng_opt_mi) { |
1562 | ret = mi_lttng_domains_open(writer); | |
1563 | if (ret) { | |
1564 | ret = CMD_ERROR; | |
1565 | goto end; | |
1566 | } | |
1567 | } | |
1568 | ||
b551a063 | 1569 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
1570 | switch (domains[i].type) { |
1571 | case LTTNG_DOMAIN_KERNEL: | |
1572 | MSG("=== Domain: Kernel ===\n"); | |
1573 | break; | |
b551a063 DG |
1574 | case LTTNG_DOMAIN_UST: |
1575 | MSG("=== Domain: UST global ===\n"); | |
88c5f0d8 DG |
1576 | MSG("Buffer type: %s\n", |
1577 | domains[i].buf_type == | |
1578 | LTTNG_BUFFER_PER_PID ? "per PID" : "per UID"); | |
b551a063 | 1579 | break; |
3c6a091f DG |
1580 | case LTTNG_DOMAIN_JUL: |
1581 | MSG("=== Domain: JUL (Java Util Logging) ===\n"); | |
1582 | break; | |
9f19cc17 DG |
1583 | default: |
1584 | MSG("=== Domain: Unimplemented ===\n"); | |
1585 | break; | |
1586 | } | |
1587 | ||
fb14d0d8 JR |
1588 | if (lttng_opt_mi) { |
1589 | ret = mi_lttng_domain(writer, &domains[i], 1); | |
1590 | if (ret) { | |
1591 | ret = CMD_ERROR; | |
1592 | goto end; | |
1593 | } | |
1594 | } | |
1595 | ||
cd80958d | 1596 | /* Clean handle before creating a new one */ |
aa5de748 MD |
1597 | if (handle) { |
1598 | lttng_destroy_handle(handle); | |
1599 | } | |
cd80958d DG |
1600 | |
1601 | handle = lttng_create_handle(session_name, &domains[i]); | |
1602 | if (handle == NULL) { | |
ca1c3607 | 1603 | ret = CMD_FATAL; |
cd80958d DG |
1604 | goto end; |
1605 | } | |
1606 | ||
3c6a091f DG |
1607 | if (domains[i].type == LTTNG_DOMAIN_JUL) { |
1608 | ret = list_session_jul_events(); | |
fb14d0d8 | 1609 | if (ret) { |
3c6a091f DG |
1610 | goto end; |
1611 | } | |
1612 | continue; | |
1613 | } | |
1614 | ||
cd80958d | 1615 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1616 | if (ret) { |
1617 | goto end; | |
1618 | } | |
1619 | ||
1620 | if (lttng_opt_mi) { | |
1621 | /* Close domain element */ | |
1622 | ret = mi_lttng_writer_close_element(writer); | |
1623 | if (ret) { | |
1624 | ret = CMD_ERROR; | |
1625 | goto end; | |
1626 | } | |
1627 | } | |
1628 | ||
1629 | } | |
1630 | if (lttng_opt_mi) { | |
1631 | /* Close the domains, session and sessions element */ | |
1632 | ret = mi_lttng_close_multi_element(writer, 3); | |
1633 | if (ret) { | |
1634 | ret = CMD_ERROR; | |
9f19cc17 DG |
1635 | goto end; |
1636 | } | |
1637 | } | |
1638 | } | |
f3ed775e DG |
1639 | } |
1640 | ||
fb14d0d8 JR |
1641 | /* Mi closing */ |
1642 | if (lttng_opt_mi) { | |
1643 | /* Close output element */ | |
1644 | ret = mi_lttng_writer_close_element(writer); | |
1645 | if (ret) { | |
1646 | ret = CMD_ERROR; | |
1647 | goto end; | |
1648 | } | |
1649 | ||
1650 | /* Command element close */ | |
1651 | ret = mi_lttng_writer_command_close(writer); | |
1652 | if (ret) { | |
1653 | ret = CMD_ERROR; | |
1654 | goto end; | |
1655 | } | |
1656 | } | |
f3ed775e | 1657 | end: |
fb14d0d8 JR |
1658 | /* Mi clean-up */ |
1659 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1660 | /* Preserve original error code */ | |
1661 | ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL; | |
1662 | } | |
1663 | ||
0e428499 | 1664 | free(domains); |
aa5de748 MD |
1665 | if (handle) { |
1666 | lttng_destroy_handle(handle); | |
1667 | } | |
cd80958d | 1668 | |
ca1c3607 | 1669 | poptFreeContext(pc); |
f3ed775e DG |
1670 | return ret; |
1671 | } |