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 | ||
ff94328f DG |
187 | static const char *loglevel_jul_string(int value) |
188 | { | |
189 | switch (value) { | |
190 | case -1: | |
191 | return ""; | |
192 | case LTTNG_LOGLEVEL_JUL_OFF: | |
193 | return "JUL_OFF"; | |
194 | case LTTNG_LOGLEVEL_JUL_SEVERE: | |
195 | return "JUL_SEVERE"; | |
196 | case LTTNG_LOGLEVEL_JUL_WARNING: | |
197 | return "JUL_WARNING"; | |
198 | case LTTNG_LOGLEVEL_JUL_INFO: | |
199 | return "JUL_INFO"; | |
200 | case LTTNG_LOGLEVEL_JUL_CONFIG: | |
201 | return "JUL_CONFIG"; | |
202 | case LTTNG_LOGLEVEL_JUL_FINE: | |
203 | return "JUL_FINE"; | |
204 | case LTTNG_LOGLEVEL_JUL_FINER: | |
205 | return "JUL_FINER"; | |
206 | case LTTNG_LOGLEVEL_JUL_FINEST: | |
207 | return "JUL_FINEST"; | |
208 | case LTTNG_LOGLEVEL_JUL_ALL: | |
209 | return "JUL_ALL"; | |
210 | default: | |
211 | return "<<UNKNOWN>>"; | |
212 | } | |
213 | } | |
214 | ||
1f0e17de DG |
215 | static const char *logleveltype_string(enum lttng_loglevel_type value) |
216 | { | |
217 | switch (value) { | |
af6bce80 DG |
218 | case LTTNG_EVENT_LOGLEVEL_ALL: |
219 | return ":"; | |
1f0e17de | 220 | case LTTNG_EVENT_LOGLEVEL_RANGE: |
af6bce80 | 221 | return " <="; |
1f0e17de | 222 | case LTTNG_EVENT_LOGLEVEL_SINGLE: |
af6bce80 | 223 | return " =="; |
1f0e17de | 224 | default: |
af6bce80 | 225 | return " <<TYPE UNKN>>"; |
1f0e17de DG |
226 | } |
227 | } | |
228 | ||
b551a063 DG |
229 | /* |
230 | * Pretty print single event. | |
231 | */ | |
232 | static void print_events(struct lttng_event *event) | |
233 | { | |
234 | switch (event->type) { | |
235 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 236 | { |
8b703175 | 237 | if (event->loglevel != -1) { |
af6bce80 | 238 | MSG("%s%s (loglevel%s %s (%d)) (type: tracepoint)%s%s%s", |
8b703175 | 239 | indent6, |
81afa345 | 240 | event->name, |
1f0e17de | 241 | logleveltype_string(event->loglevel_type), |
fb14d0d8 | 242 | mi_lttng_loglevel_string(event->loglevel), |
8b703175 | 243 | event->loglevel, |
fceb65df | 244 | enabled_string(event->enabled), |
4634f12e | 245 | exclusion_string(event->exclusion), |
fceb65df | 246 | filter_string(event->filter)); |
8b703175 | 247 | } else { |
4634f12e | 248 | MSG("%s%s (type: tracepoint)%s%s%s", |
8b703175 MD |
249 | indent6, |
250 | event->name, | |
fceb65df | 251 | enabled_string(event->enabled), |
4634f12e | 252 | exclusion_string(event->exclusion), |
fceb65df | 253 | filter_string(event->filter)); |
8b703175 | 254 | } |
b551a063 | 255 | break; |
e4baff1e | 256 | } |
1896972b DG |
257 | case LTTNG_EVENT_FUNCTION: |
258 | MSG("%s%s (type: function)%s%s", indent6, | |
259 | event->name, enabled_string(event->enabled), | |
260 | filter_string(event->filter)); | |
261 | if (event->attr.probe.addr != 0) { | |
262 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
263 | } else { | |
264 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
265 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
266 | } | |
267 | break; | |
b551a063 | 268 | case LTTNG_EVENT_PROBE: |
fceb65df MD |
269 | MSG("%s%s (type: probe)%s%s", indent6, |
270 | event->name, enabled_string(event->enabled), | |
271 | filter_string(event->filter)); | |
b551a063 DG |
272 | if (event->attr.probe.addr != 0) { |
273 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
274 | } else { | |
275 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
276 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
277 | } | |
278 | break; | |
b551a063 | 279 | case LTTNG_EVENT_FUNCTION_ENTRY: |
fceb65df MD |
280 | MSG("%s%s (type: function)%s%s", indent6, |
281 | event->name, enabled_string(event->enabled), | |
282 | filter_string(event->filter)); | |
b551a063 DG |
283 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
284 | break; | |
285 | case LTTNG_EVENT_SYSCALL: | |
fceb65df MD |
286 | MSG("%ssyscalls (type: syscall)%s%s", indent6, |
287 | enabled_string(event->enabled), | |
288 | filter_string(event->filter)); | |
b551a063 DG |
289 | break; |
290 | case LTTNG_EVENT_NOOP: | |
fceb65df MD |
291 | MSG("%s (type: noop)%s%s", indent6, |
292 | enabled_string(event->enabled), | |
293 | filter_string(event->filter)); | |
b551a063 DG |
294 | break; |
295 | case LTTNG_EVENT_ALL: | |
296 | /* We should never have "all" events in list. */ | |
297 | assert(0); | |
298 | break; | |
299 | } | |
300 | } | |
301 | ||
f37d259d MD |
302 | static const char *field_type(struct lttng_event_field *field) |
303 | { | |
304 | switch(field->type) { | |
305 | case LTTNG_EVENT_FIELD_INTEGER: | |
306 | return "integer"; | |
307 | case LTTNG_EVENT_FIELD_ENUM: | |
308 | return "enum"; | |
309 | case LTTNG_EVENT_FIELD_FLOAT: | |
310 | return "float"; | |
311 | case LTTNG_EVENT_FIELD_STRING: | |
312 | return "string"; | |
313 | case LTTNG_EVENT_FIELD_OTHER: | |
314 | default: /* fall-through */ | |
315 | return "unknown"; | |
316 | } | |
317 | } | |
318 | ||
319 | /* | |
320 | * Pretty print single event fields. | |
321 | */ | |
322 | static void print_event_field(struct lttng_event_field *field) | |
323 | { | |
324 | if (!field->field_name[0]) { | |
325 | return; | |
326 | } | |
d8fbe2a9 | 327 | MSG("%sfield: %s (%s)%s", indent8, field->field_name, |
45a32634 | 328 | field_type(field), field->nowrite ? " [no write]" : ""); |
f37d259d MD |
329 | } |
330 | ||
fb14d0d8 JR |
331 | /* |
332 | * Machine interface | |
333 | * Jul and ust event listing | |
334 | */ | |
335 | static int mi_list_jul_ust_events(struct lttng_event *events, int count, | |
336 | struct lttng_domain *domain) | |
337 | { | |
338 | int ret, i; | |
339 | pid_t cur_pid = 0; | |
340 | char *cmdline = NULL; | |
341 | int pid_element_open = 0; | |
342 | ||
343 | /* Open domains element */ | |
344 | ret = mi_lttng_domains_open(writer); | |
345 | if (ret) { | |
346 | goto end; | |
347 | } | |
348 | ||
349 | /* Write domain */ | |
350 | ret = mi_lttng_domain(writer, domain, 1); | |
351 | if (ret) { | |
352 | goto end; | |
353 | } | |
354 | ||
355 | /* Open pids element */ | |
356 | ret = mi_lttng_pids_open(writer); | |
357 | if (ret) { | |
358 | goto end; | |
359 | } | |
360 | ||
361 | for (i = 0; i < count; i++) { | |
362 | if (cur_pid != events[i].pid) { | |
363 | if (pid_element_open) { | |
364 | /* Close the previous events and pid element */ | |
365 | ret = mi_lttng_close_multi_element(writer, 2); | |
366 | if (ret) { | |
367 | goto end; | |
368 | } | |
369 | pid_element_open = 0; | |
370 | } | |
371 | ||
372 | cur_pid = events[i].pid; | |
373 | cmdline = get_cmdline_by_pid(cur_pid); | |
374 | if (!cmdline) { | |
375 | ret = CMD_ERROR; | |
376 | goto end; | |
377 | } | |
378 | ||
379 | if (!pid_element_open) { | |
380 | /* Open and write a pid element */ | |
381 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
382 | if (ret) { | |
383 | goto error; | |
384 | } | |
385 | ||
386 | /* Open events element */ | |
387 | ret = mi_lttng_events_open(writer); | |
388 | if (ret) { | |
389 | goto error; | |
390 | } | |
391 | ||
392 | pid_element_open = 1; | |
393 | } | |
394 | free(cmdline); | |
395 | } | |
396 | ||
397 | /* Write an event */ | |
398 | ret = mi_lttng_event(writer, &events[i], 0); | |
399 | if (ret) { | |
400 | goto end; | |
401 | } | |
402 | } | |
403 | ||
404 | /* Close pids */ | |
405 | ret = mi_lttng_writer_close_element(writer); | |
406 | if (ret) { | |
407 | goto end; | |
408 | } | |
409 | ||
410 | /* Close domain, domains */ | |
411 | ret = mi_lttng_close_multi_element(writer, 2); | |
412 | end: | |
413 | return ret; | |
414 | error: | |
415 | free(cmdline); | |
416 | return ret; | |
417 | } | |
418 | ||
3c6a091f DG |
419 | static int list_jul_events(void) |
420 | { | |
fb14d0d8 | 421 | int i, size, ret = CMD_SUCCESS; |
3c6a091f DG |
422 | struct lttng_domain domain; |
423 | struct lttng_handle *handle; | |
424 | struct lttng_event *event_list; | |
425 | pid_t cur_pid = 0; | |
426 | char *cmdline = NULL; | |
427 | ||
428 | DBG("Getting JUL tracing events"); | |
429 | ||
430 | memset(&domain, 0, sizeof(domain)); | |
431 | domain.type = LTTNG_DOMAIN_JUL; | |
432 | ||
433 | handle = lttng_create_handle(NULL, &domain); | |
434 | if (handle == NULL) { | |
fb14d0d8 JR |
435 | ret = CMD_ERROR; |
436 | goto end; | |
3c6a091f DG |
437 | } |
438 | ||
439 | size = lttng_list_tracepoints(handle, &event_list); | |
440 | if (size < 0) { | |
441 | ERR("Unable to list JUL events: %s", lttng_strerror(size)); | |
fb14d0d8 JR |
442 | ret = CMD_ERROR; |
443 | goto end; | |
3c6a091f DG |
444 | } |
445 | ||
fb14d0d8 JR |
446 | if (lttng_opt_mi) { |
447 | /* Mi print */ | |
448 | ret = mi_list_jul_ust_events(event_list, size, &domain); | |
449 | if (ret) { | |
450 | ret = CMD_ERROR; | |
451 | goto error; | |
3c6a091f | 452 | } |
fb14d0d8 JR |
453 | } else { |
454 | /* Pretty print */ | |
455 | MSG("JUL events (Logger name):\n-------------------------"); | |
3c6a091f | 456 | |
fb14d0d8 JR |
457 | if (size == 0) { |
458 | MSG("None"); | |
459 | } | |
3c6a091f | 460 | |
fb14d0d8 JR |
461 | for (i = 0; i < size; i++) { |
462 | if (cur_pid != event_list[i].pid) { | |
463 | cur_pid = event_list[i].pid; | |
464 | cmdline = get_cmdline_by_pid(cur_pid); | |
465 | if (cmdline == NULL) { | |
466 | ret = CMD_ERROR; | |
467 | goto error; | |
468 | } | |
469 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
470 | free(cmdline); | |
471 | } | |
472 | MSG("%s- %s", indent6, event_list[i].name); | |
473 | } | |
3c6a091f | 474 | |
fb14d0d8 JR |
475 | MSG(""); |
476 | } | |
3c6a091f DG |
477 | |
478 | error: | |
fb14d0d8 JR |
479 | free(event_list); |
480 | end: | |
3c6a091f | 481 | lttng_destroy_handle(handle); |
fb14d0d8 | 482 | return ret; |
3c6a091f DG |
483 | } |
484 | ||
b551a063 DG |
485 | /* |
486 | * Ask session daemon for all user space tracepoints available. | |
487 | */ | |
488 | static int list_ust_events(void) | |
489 | { | |
fb14d0d8 | 490 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
491 | struct lttng_domain domain; |
492 | struct lttng_handle *handle; | |
493 | struct lttng_event *event_list; | |
494 | pid_t cur_pid = 0; | |
ea5cbc00 | 495 | char *cmdline = NULL; |
b551a063 | 496 | |
441c16a7 MD |
497 | memset(&domain, 0, sizeof(domain)); |
498 | ||
b551a063 DG |
499 | DBG("Getting UST tracing events"); |
500 | ||
501 | domain.type = LTTNG_DOMAIN_UST; | |
502 | ||
503 | handle = lttng_create_handle(NULL, &domain); | |
504 | if (handle == NULL) { | |
fb14d0d8 JR |
505 | ret = CMD_ERROR; |
506 | goto end; | |
b551a063 DG |
507 | } |
508 | ||
509 | size = lttng_list_tracepoints(handle, &event_list); | |
510 | if (size < 0) { | |
60e835ca | 511 | ERR("Unable to list UST events: %s", lttng_strerror(size)); |
fb14d0d8 JR |
512 | ret = CMD_ERROR; |
513 | goto error; | |
b551a063 DG |
514 | } |
515 | ||
fb14d0d8 JR |
516 | if (lttng_opt_mi) { |
517 | /* Mi print */ | |
518 | ret = mi_list_jul_ust_events(event_list, size, &domain); | |
519 | } else { | |
520 | /* Pretty print */ | |
521 | MSG("UST events:\n-------------"); | |
522 | ||
523 | if (size == 0) { | |
524 | MSG("None"); | |
525 | } | |
526 | ||
527 | for (i = 0; i < size; i++) { | |
528 | if (cur_pid != event_list[i].pid) { | |
529 | cur_pid = event_list[i].pid; | |
530 | cmdline = get_cmdline_by_pid(cur_pid); | |
531 | if (cmdline == NULL) { | |
532 | ret = CMD_ERROR; | |
533 | goto error; | |
534 | } | |
535 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
536 | free(cmdline); | |
537 | } | |
538 | print_events(&event_list[i]); | |
539 | } | |
b551a063 | 540 | |
fb14d0d8 | 541 | MSG(""); |
b551a063 DG |
542 | } |
543 | ||
fb14d0d8 JR |
544 | error: |
545 | free(event_list); | |
546 | end: | |
547 | lttng_destroy_handle(handle); | |
548 | return ret; | |
549 | } | |
550 | ||
551 | /* | |
552 | * Machine interface | |
553 | * List all ust event with their fields | |
554 | */ | |
555 | static int mi_list_ust_event_fields(struct lttng_event_field *fields, int count, | |
556 | struct lttng_domain *domain) | |
557 | { | |
558 | int ret, i; | |
559 | pid_t cur_pid = 0; | |
560 | char *cmdline = NULL; | |
561 | int pid_element_open = 0; | |
562 | int event_element_open = 0; | |
563 | struct lttng_event cur_event; | |
564 | ||
565 | /* Open domains element */ | |
566 | ret = mi_lttng_domains_open(writer); | |
567 | if (ret) { | |
568 | goto end; | |
569 | } | |
570 | ||
571 | /* Write domain */ | |
572 | ret = mi_lttng_domain(writer, domain, 1); | |
573 | if (ret) { | |
574 | goto end; | |
575 | } | |
576 | ||
577 | /* Open pids element */ | |
578 | ret = mi_lttng_pids_open(writer); | |
579 | if (ret) { | |
580 | goto end; | |
581 | } | |
582 | ||
583 | for (i = 0; i < count; i++) { | |
584 | if (cur_pid != fields[i].event.pid) { | |
585 | if (pid_element_open) { | |
586 | if (event_element_open) { | |
587 | /* | |
588 | * Close the previous fields element | |
589 | * and the previous event | |
590 | */ | |
591 | ret = mi_lttng_close_multi_element(writer, 2); | |
592 | if (ret) { | |
593 | goto end; | |
594 | } | |
595 | event_element_open = 0; | |
596 | } | |
597 | /* Close the previous events, pid element */ | |
598 | ret = mi_lttng_close_multi_element(writer, 2); | |
599 | if (ret) { | |
600 | goto end; | |
601 | } | |
602 | pid_element_open = 0; | |
603 | } | |
604 | ||
605 | cur_pid = fields[i].event.pid; | |
ea5cbc00 | 606 | cmdline = get_cmdline_by_pid(cur_pid); |
fb14d0d8 JR |
607 | if (!pid_element_open) { |
608 | /* Open and write a pid element */ | |
609 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
610 | if (ret) { | |
611 | goto error; | |
612 | } | |
613 | ||
614 | /* Open events element */ | |
615 | ret = mi_lttng_events_open(writer); | |
616 | if (ret) { | |
617 | goto error; | |
618 | } | |
619 | pid_element_open = 1; | |
620 | } | |
ea5cbc00 | 621 | free(cmdline); |
fb14d0d8 JR |
622 | /* Wipe current event since we are about to print a new PID. */ |
623 | memset(&cur_event, 0, sizeof(cur_event)); | |
b551a063 | 624 | } |
b551a063 | 625 | |
fb14d0d8 JR |
626 | if (strcmp(cur_event.name, fields[i].event.name) != 0) { |
627 | if (event_element_open) { | |
628 | /* Close the previous fields element and the previous event */ | |
629 | ret = mi_lttng_close_multi_element(writer, 2); | |
630 | if (ret) { | |
631 | goto end; | |
632 | } | |
633 | event_element_open = 0; | |
634 | } | |
635 | ||
636 | memcpy(&cur_event, &fields[i].event, | |
637 | sizeof(cur_event)); | |
b551a063 | 638 | |
fb14d0d8 JR |
639 | if (!event_element_open) { |
640 | /* Open and write the event */ | |
641 | ret = mi_lttng_event(writer, &cur_event, 1); | |
642 | if (ret) { | |
643 | goto end; | |
644 | } | |
645 | ||
646 | /* Open a fields element */ | |
647 | ret = mi_lttng_event_fields_open(writer); | |
648 | if (ret) { | |
649 | goto end; | |
650 | } | |
651 | event_element_open = 1; | |
652 | } | |
653 | } | |
b551a063 | 654 | |
fb14d0d8 JR |
655 | /* Print the event_field */ |
656 | ret = mi_lttng_event_field(writer, &fields[i]); | |
657 | if (ret) { | |
658 | goto end; | |
659 | } | |
660 | } | |
b551a063 | 661 | |
fb14d0d8 JR |
662 | /* Close pids, domain, domains */ |
663 | ret = mi_lttng_close_multi_element(writer, 3); | |
664 | end: | |
665 | return ret; | |
b551a063 | 666 | error: |
fb14d0d8 JR |
667 | free(cmdline); |
668 | return ret; | |
b551a063 | 669 | } |
f3ed775e | 670 | |
f37d259d MD |
671 | /* |
672 | * Ask session daemon for all user space tracepoint fields available. | |
673 | */ | |
674 | static int list_ust_event_fields(void) | |
675 | { | |
fb14d0d8 | 676 | int i, size, ret = CMD_SUCCESS; |
f37d259d MD |
677 | struct lttng_domain domain; |
678 | struct lttng_handle *handle; | |
679 | struct lttng_event_field *event_field_list; | |
680 | pid_t cur_pid = 0; | |
ea5cbc00 CB |
681 | char *cmdline = NULL; |
682 | ||
f37d259d MD |
683 | struct lttng_event cur_event; |
684 | ||
685 | memset(&domain, 0, sizeof(domain)); | |
686 | memset(&cur_event, 0, sizeof(cur_event)); | |
687 | ||
688 | DBG("Getting UST tracing event fields"); | |
689 | ||
690 | domain.type = LTTNG_DOMAIN_UST; | |
691 | ||
692 | handle = lttng_create_handle(NULL, &domain); | |
693 | if (handle == NULL) { | |
fb14d0d8 JR |
694 | ret = CMD_ERROR; |
695 | goto end; | |
f37d259d MD |
696 | } |
697 | ||
698 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
699 | if (size < 0) { | |
60e835ca | 700 | ERR("Unable to list UST event fields: %s", lttng_strerror(size)); |
fb14d0d8 JR |
701 | ret = CMD_ERROR; |
702 | goto end; | |
f37d259d MD |
703 | } |
704 | ||
fb14d0d8 JR |
705 | if (lttng_opt_mi) { |
706 | /* Mi print */ | |
707 | ret = mi_list_ust_event_fields(event_field_list, size, &domain); | |
708 | if (ret) { | |
709 | ret = CMD_ERROR; | |
710 | goto error; | |
711 | } | |
712 | } else { | |
713 | /* Pretty print */ | |
714 | MSG("UST events:\n-------------"); | |
f37d259d | 715 | |
fb14d0d8 JR |
716 | if (size == 0) { |
717 | MSG("None"); | |
f37d259d | 718 | } |
fb14d0d8 JR |
719 | |
720 | for (i = 0; i < size; i++) { | |
721 | if (cur_pid != event_field_list[i].event.pid) { | |
722 | cur_pid = event_field_list[i].event.pid; | |
723 | cmdline = get_cmdline_by_pid(cur_pid); | |
724 | if (cmdline == NULL) { | |
725 | ret = CMD_ERROR; | |
726 | goto error; | |
727 | } | |
728 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
729 | free(cmdline); | |
730 | /* Wipe current event since we are about to print a new PID. */ | |
731 | memset(&cur_event, 0, sizeof(cur_event)); | |
732 | } | |
733 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
734 | print_events(&event_field_list[i].event); | |
735 | memcpy(&cur_event, &event_field_list[i].event, | |
736 | sizeof(cur_event)); | |
737 | } | |
738 | print_event_field(&event_field_list[i]); | |
f37d259d | 739 | } |
f37d259d | 740 | |
fb14d0d8 JR |
741 | MSG(""); |
742 | } | |
f37d259d | 743 | |
fb14d0d8 | 744 | error: |
f37d259d | 745 | free(event_field_list); |
fb14d0d8 | 746 | end: |
f37d259d | 747 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
748 | return ret; |
749 | } | |
f37d259d | 750 | |
fb14d0d8 JR |
751 | /* |
752 | * Machine interface | |
753 | * Print a list of kernel events | |
754 | */ | |
755 | static int mi_list_kernel_events(struct lttng_event *events, int count, | |
756 | struct lttng_domain *domain) | |
757 | { | |
758 | int ret, i; | |
f37d259d | 759 | |
fb14d0d8 JR |
760 | /* Open domains element */ |
761 | ret = mi_lttng_domains_open(writer); | |
762 | if (ret) { | |
763 | goto end; | |
764 | } | |
765 | ||
766 | /* Write domain */ | |
767 | ret = mi_lttng_domain(writer, domain, 1); | |
768 | if (ret) { | |
769 | goto end; | |
770 | } | |
771 | ||
772 | /* Open events */ | |
773 | ret = mi_lttng_events_open(writer); | |
774 | if (ret) { | |
775 | goto end; | |
776 | } | |
777 | ||
778 | for (i = 0; i < count; i++) { | |
779 | mi_lttng_event(writer, &events[i], 0); | |
780 | if (ret) { | |
781 | goto end; | |
782 | } | |
783 | } | |
784 | ||
785 | /* close events, domain and domains */ | |
786 | ret = mi_lttng_close_multi_element(writer, 3); | |
787 | if (ret) { | |
788 | goto end; | |
789 | } | |
790 | ||
791 | end: | |
792 | return ret; | |
f37d259d MD |
793 | } |
794 | ||
f3ed775e | 795 | /* |
fb14d0d8 | 796 | * Ask for all trace events in the kernel |
f3ed775e | 797 | */ |
9f19cc17 | 798 | static int list_kernel_events(void) |
f3ed775e | 799 | { |
fb14d0d8 | 800 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
801 | struct lttng_domain domain; |
802 | struct lttng_handle *handle; | |
9f19cc17 | 803 | struct lttng_event *event_list; |
f3ed775e | 804 | |
441c16a7 MD |
805 | memset(&domain, 0, sizeof(domain)); |
806 | ||
b551a063 DG |
807 | DBG("Getting kernel tracing events"); |
808 | ||
809 | domain.type = LTTNG_DOMAIN_KERNEL; | |
810 | ||
811 | handle = lttng_create_handle(NULL, &domain); | |
812 | if (handle == NULL) { | |
fb14d0d8 | 813 | ret = CMD_ERROR; |
b551a063 DG |
814 | goto error; |
815 | } | |
f3ed775e | 816 | |
cd80958d | 817 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 | 818 | if (size < 0) { |
60e835ca | 819 | ERR("Unable to list kernel events: %s", lttng_strerror(size)); |
ef021732 | 820 | lttng_destroy_handle(handle); |
fb14d0d8 | 821 | return CMD_ERROR; |
f3ed775e DG |
822 | } |
823 | ||
fb14d0d8 JR |
824 | if (lttng_opt_mi) { |
825 | /* Mi print */ | |
826 | ret = mi_list_kernel_events(event_list, size, &domain); | |
827 | if (ret) { | |
828 | ret = CMD_ERROR; | |
829 | goto end; | |
830 | } | |
831 | } else { | |
832 | MSG("Kernel events:\n-------------"); | |
f3ed775e | 833 | |
fb14d0d8 JR |
834 | for (i = 0; i < size; i++) { |
835 | print_events(&event_list[i]); | |
836 | } | |
f3ed775e | 837 | |
fb14d0d8 JR |
838 | MSG(""); |
839 | } | |
b551a063 | 840 | |
fb14d0d8 | 841 | end: |
f3ed775e DG |
842 | free(event_list); |
843 | ||
ef021732 | 844 | lttng_destroy_handle(handle); |
fb14d0d8 | 845 | return ret; |
b551a063 DG |
846 | |
847 | error: | |
ef021732 | 848 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
849 | return ret; |
850 | } | |
851 | ||
852 | /* | |
853 | * Machine Interface | |
854 | * Print a list of jul events | |
855 | */ | |
856 | static int mi_list_session_jul_events(struct lttng_event *events, int count) | |
857 | { | |
858 | int ret, i; | |
859 | ||
860 | /* Open events element */ | |
861 | ret = mi_lttng_events_open(writer); | |
862 | if (ret) { | |
863 | goto end; | |
864 | } | |
865 | ||
866 | for (i = 0; i < count; i++) { | |
867 | ret = mi_lttng_event(writer, &events[i], 0); | |
868 | if (ret) { | |
869 | goto end; | |
870 | } | |
871 | } | |
872 | ||
873 | /* Close events element */ | |
874 | ret = mi_lttng_writer_close_element(writer); | |
875 | ||
876 | end: | |
877 | return ret; | |
f3ed775e DG |
878 | } |
879 | ||
3c6a091f DG |
880 | /* |
881 | * List JUL events for a specific session using the handle. | |
882 | * | |
883 | * Return CMD_SUCCESS on success else a negative value. | |
884 | */ | |
885 | static int list_session_jul_events(void) | |
886 | { | |
fb14d0d8 | 887 | int ret = CMD_SUCCESS, count, i; |
3c6a091f DG |
888 | struct lttng_event *events = NULL; |
889 | ||
890 | count = lttng_list_events(handle, "", &events); | |
891 | if (count < 0) { | |
fb14d0d8 JR |
892 | ret = CMD_ERROR; |
893 | ERR("%s", lttng_strerror(count)); | |
3c6a091f DG |
894 | goto error; |
895 | } | |
896 | ||
fb14d0d8 JR |
897 | if (lttng_opt_mi) { |
898 | /* Mi print */ | |
899 | ret = mi_list_session_jul_events(events, count); | |
900 | if (ret) { | |
901 | ret = CMD_ERROR; | |
902 | goto end; | |
903 | } | |
904 | } else { | |
905 | /* Pretty print */ | |
906 | MSG("Events (Logger name):\n---------------------"); | |
907 | if (count == 0) { | |
908 | MSG("%sNone\n", indent6); | |
909 | goto end; | |
910 | } | |
911 | ||
912 | for (i = 0; i < count; i++) { | |
913 | MSG("%s- %s%s (loglevel%s %s)", indent4, events[i].name, | |
914 | enabled_string(events[i].enabled), | |
915 | logleveltype_string(events[i].loglevel_type), | |
916 | loglevel_jul_string(events[i].loglevel)); | |
917 | } | |
918 | ||
919 | MSG(""); | |
920 | } | |
921 | ||
922 | end: | |
923 | free(events); | |
924 | error: | |
925 | return ret; | |
926 | } | |
927 | ||
928 | /* | |
929 | * Machine interface | |
930 | * print a list of event | |
931 | */ | |
932 | static int mi_list_events(struct lttng_event *events, int count) | |
933 | { | |
934 | int ret, i; | |
935 | ||
936 | /* Open events element */ | |
937 | ret = mi_lttng_events_open(writer); | |
938 | if (ret) { | |
3c6a091f DG |
939 | goto end; |
940 | } | |
941 | ||
942 | for (i = 0; i < count; i++) { | |
fb14d0d8 JR |
943 | ret = mi_lttng_event(writer, &events[i], 0); |
944 | if (ret) { | |
945 | goto end; | |
946 | } | |
3c6a091f DG |
947 | } |
948 | ||
fb14d0d8 JR |
949 | /* Close events element */ |
950 | ret = mi_lttng_writer_close_element(writer); | |
3c6a091f DG |
951 | |
952 | end: | |
3c6a091f DG |
953 | return ret; |
954 | } | |
955 | ||
f3ed775e | 956 | /* |
9f19cc17 | 957 | * List events of channel of session and domain. |
f3ed775e | 958 | */ |
cd80958d | 959 | static int list_events(const char *channel_name) |
f3ed775e | 960 | { |
fb14d0d8 | 961 | int ret = CMD_SUCCESS, count, i; |
9f19cc17 | 962 | struct lttng_event *events = NULL; |
f3ed775e | 963 | |
cd80958d | 964 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e | 965 | if (count < 0) { |
fb14d0d8 JR |
966 | ret = CMD_ERROR; |
967 | ERR("%s", lttng_strerror(count)); | |
f3ed775e DG |
968 | goto error; |
969 | } | |
970 | ||
fb14d0d8 JR |
971 | if (lttng_opt_mi) { |
972 | /* Mi print */ | |
973 | ret = mi_list_events(events, count); | |
974 | if (ret) { | |
975 | ret = CMD_ERROR; | |
976 | goto end; | |
977 | } | |
978 | } else { | |
979 | /* Pretty print */ | |
980 | MSG("\n%sEvents:", indent4); | |
981 | if (count == 0) { | |
982 | MSG("%sNone\n", indent6); | |
983 | goto end; | |
984 | } | |
f3ed775e | 985 | |
fb14d0d8 JR |
986 | for (i = 0; i < count; i++) { |
987 | print_events(&events[i]); | |
988 | } | |
f3ed775e | 989 | |
fb14d0d8 JR |
990 | MSG(""); |
991 | } | |
9f19cc17 | 992 | end: |
0e428499 | 993 | free(events); |
f3ed775e DG |
994 | error: |
995 | return ret; | |
996 | } | |
997 | ||
998 | /* | |
9f19cc17 DG |
999 | * Pretty print channel |
1000 | */ | |
1001 | static void print_channel(struct lttng_channel *channel) | |
1002 | { | |
464dd62d | 1003 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
1004 | |
1005 | MSG("%sAttributes:", indent4); | |
a5bbe8f6 DG |
1006 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); |
1007 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
9f19cc17 | 1008 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); |
a5bbe8f6 DG |
1009 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); |
1010 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
2f785fe7 DG |
1011 | MSG("%strace file count: %" PRIu64, indent6, channel->attr.tracefile_count); |
1012 | MSG("%strace file size (bytes): %" PRIu64, indent6, channel->attr.tracefile_size); | |
9f19cc17 DG |
1013 | switch (channel->attr.output) { |
1014 | case LTTNG_EVENT_SPLICE: | |
1015 | MSG("%soutput: splice()", indent6); | |
1016 | break; | |
1017 | case LTTNG_EVENT_MMAP: | |
1018 | MSG("%soutput: mmap()", indent6); | |
1019 | break; | |
1020 | } | |
1021 | } | |
1022 | ||
fb14d0d8 JR |
1023 | /* |
1024 | * Machine interface | |
1025 | * Print a list of channel | |
1026 | * | |
1027 | */ | |
1028 | static int mi_list_channels(struct lttng_channel *channels, int count, | |
1029 | const char *channel_name) | |
1030 | { | |
1031 | int i, ret; | |
1032 | unsigned int chan_found = 0; | |
1033 | ||
1034 | /* Open channels element */ | |
1035 | ret = mi_lttng_channels_open(writer); | |
1036 | if (ret) { | |
1037 | goto error; | |
1038 | } | |
1039 | ||
1040 | for (i = 0; i < count; i++) { | |
1041 | if (channel_name != NULL) { | |
1042 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1043 | chan_found = 1; | |
1044 | } else { | |
1045 | continue; | |
1046 | } | |
1047 | } | |
1048 | ||
1049 | /* Write channel element and leave it open */ | |
1050 | ret = mi_lttng_channel(writer, &channels[i], 1); | |
1051 | if (ret) { | |
1052 | goto error; | |
1053 | } | |
1054 | ||
1055 | /* Listing events per channel */ | |
1056 | ret = list_events(channels[i].name); | |
1057 | if (ret) { | |
1058 | goto error; | |
1059 | } | |
1060 | ||
1061 | /* Closing the channel element we opened earlier */ | |
1062 | ret = mi_lttng_writer_close_element(writer); | |
1063 | if (ret) { | |
1064 | goto error; | |
1065 | } | |
1066 | ||
1067 | if (chan_found) { | |
1068 | break; | |
1069 | } | |
1070 | } | |
1071 | ||
1072 | /* Close channels element */ | |
1073 | ret = mi_lttng_writer_close_element(writer); | |
1074 | if (ret) { | |
1075 | goto error; | |
1076 | } | |
1077 | ||
1078 | error: | |
1079 | return ret; | |
1080 | } | |
1081 | ||
9f19cc17 DG |
1082 | /* |
1083 | * List channel(s) of session and domain. | |
f3ed775e | 1084 | * |
9f19cc17 | 1085 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 1086 | */ |
cd80958d | 1087 | static int list_channels(const char *channel_name) |
f3ed775e | 1088 | { |
9f19cc17 DG |
1089 | int count, i, ret = CMD_SUCCESS; |
1090 | unsigned int chan_found = 0; | |
1091 | struct lttng_channel *channels = NULL; | |
f3ed775e | 1092 | |
3e25cb20 | 1093 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 1094 | |
cd80958d | 1095 | count = lttng_list_channels(handle, &channels); |
f3ed775e | 1096 | if (count < 0) { |
c7d620a2 DG |
1097 | switch (-count) { |
1098 | case LTTNG_ERR_KERN_CHAN_NOT_FOUND: | |
fb14d0d8 JR |
1099 | if (lttng_opt_mi) { |
1100 | /* When printing mi this is not an error | |
1101 | * but an empty channels element */ | |
1102 | count = 0; | |
1103 | } else { | |
1104 | ret = CMD_SUCCESS; | |
1105 | WARN("No kernel channel"); | |
1106 | goto error_channels; | |
1107 | } | |
c7d620a2 DG |
1108 | break; |
1109 | default: | |
1110 | /* We had a real error */ | |
fb14d0d8 JR |
1111 | ret = CMD_ERROR; |
1112 | ERR("%s", lttng_strerror(count)); | |
1113 | goto error_channels; | |
60e835ca | 1114 | break; |
c7d620a2 | 1115 | } |
f3ed775e DG |
1116 | } |
1117 | ||
fb14d0d8 JR |
1118 | if (lttng_opt_mi) { |
1119 | /* Mi print */ | |
1120 | ret = mi_list_channels(channels, count, channel_name); | |
1121 | if (ret) { | |
1122 | ret = CMD_ERROR; | |
1123 | goto error; | |
1124 | } | |
1125 | } else { | |
1126 | /* Pretty print */ | |
1127 | if (channel_name == NULL) { | |
1128 | MSG("Channels:\n-------------"); | |
1129 | } | |
9f19cc17 | 1130 | |
fb14d0d8 JR |
1131 | for (i = 0; i < count; i++) { |
1132 | if (channel_name != NULL) { | |
1133 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1134 | chan_found = 1; | |
1135 | } else { | |
1136 | continue; | |
1137 | } | |
1138 | } | |
1139 | print_channel(&channels[i]); | |
1140 | ||
1141 | /* Listing events per channel */ | |
1142 | ret = list_events(channels[i].name); | |
1143 | if (ret) { | |
1144 | goto error; | |
1145 | } | |
1146 | ||
1147 | if (chan_found) { | |
1148 | break; | |
9f19cc17 DG |
1149 | } |
1150 | } | |
9f19cc17 | 1151 | |
fb14d0d8 JR |
1152 | if (!chan_found && channel_name != NULL) { |
1153 | ret = CMD_ERROR; | |
1154 | ERR("Channel %s not found", channel_name); | |
1155 | goto error; | |
9f19cc17 | 1156 | } |
fb14d0d8 JR |
1157 | } |
1158 | error: | |
1159 | free(channels); | |
9f19cc17 | 1160 | |
fb14d0d8 JR |
1161 | error_channels: |
1162 | return ret; | |
1163 | } | |
1164 | ||
1165 | /* | |
1166 | * Machine interface | |
1167 | * Find the session with session_name as name | |
1168 | * and print his informations. | |
1169 | */ | |
1170 | static int mi_list_session(const char *session_name, | |
1171 | struct lttng_session *sessions, int count) | |
1172 | { | |
1173 | int ret, i; | |
1174 | unsigned int session_found = 0; | |
1175 | ||
1176 | if (session_name == NULL) { | |
1177 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1178 | goto end; | |
1179 | } | |
1180 | ||
1181 | for (i = 0; i < count; i++) { | |
1182 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1183 | /* We need to leave it open to append other informations | |
1184 | * like domain, channel, events etc.*/ | |
1185 | session_found = 1; | |
1186 | ret = mi_lttng_session(writer, &sessions[i], 1); | |
1187 | if (ret) { | |
1188 | goto end; | |
1189 | } | |
9f19cc17 | 1190 | break; |
f3ed775e | 1191 | } |
f3ed775e DG |
1192 | } |
1193 | ||
fb14d0d8 JR |
1194 | if (!session_found) { |
1195 | ERR("Session '%s' not found", session_name); | |
1196 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1197 | goto end; | |
9f19cc17 | 1198 | } |
f3ed775e | 1199 | |
fb14d0d8 JR |
1200 | end: |
1201 | return ret; | |
1202 | } | |
f3ed775e | 1203 | |
fb14d0d8 JR |
1204 | /* |
1205 | * Machine interface | |
1206 | * List all availables session | |
1207 | */ | |
1208 | static int mi_list_sessions(struct lttng_session *sessions, int count) | |
1209 | { | |
1210 | int ret, i; | |
ae856491 | 1211 | |
fb14d0d8 JR |
1212 | /* Opening sessions element */ |
1213 | ret = mi_lttng_sessions_open(writer); | |
1214 | if (ret) { | |
1215 | goto end; | |
1216 | } | |
1217 | ||
1218 | /* Listing sessions */ | |
1219 | for (i = 0; i < count; i++) { | |
1220 | ret = mi_lttng_session(writer, &sessions[i], 0); | |
1221 | if (ret) { | |
1222 | goto end; | |
1223 | } | |
1224 | } | |
1225 | ||
1226 | /* Closing sessions element */ | |
1227 | ret = mi_lttng_writer_close_element(writer); | |
1228 | if (ret) { | |
1229 | goto end; | |
1230 | } | |
1231 | ||
1232 | end: | |
f3ed775e DG |
1233 | return ret; |
1234 | } | |
1235 | ||
1236 | /* | |
9f19cc17 | 1237 | * List available tracing session. List only basic information. |
f3ed775e | 1238 | * |
9f19cc17 | 1239 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 1240 | */ |
9f19cc17 | 1241 | static int list_sessions(const char *session_name) |
f3ed775e | 1242 | { |
fb14d0d8 JR |
1243 | int ret = CMD_SUCCESS; |
1244 | int count, i; | |
9f19cc17 DG |
1245 | unsigned int session_found = 0; |
1246 | struct lttng_session *sessions; | |
1247 | ||
1248 | count = lttng_list_sessions(&sessions); | |
1249 | DBG("Session count %d", count); | |
1250 | if (count < 0) { | |
fb14d0d8 JR |
1251 | ret = CMD_ERROR; |
1252 | ERR("%s", lttng_strerror(count)); | |
d32fb093 | 1253 | goto end; |
9f19cc17 DG |
1254 | } |
1255 | ||
fb14d0d8 JR |
1256 | if (lttng_opt_mi) { |
1257 | /* Mi */ | |
1258 | if (session_name == NULL) { | |
1259 | /* List all session */ | |
1260 | ret = mi_list_sessions(sessions, count); | |
1261 | } else { | |
1262 | /* Note : this return an open session element */ | |
1263 | ret = mi_list_session(session_name, sessions, count); | |
1264 | } | |
1265 | if (ret) { | |
1266 | ret = CMD_ERROR; | |
1267 | goto error; | |
1268 | } | |
1269 | } else { | |
1270 | /* Pretty print */ | |
1271 | if (count == 0) { | |
1272 | MSG("Currently no available tracing session"); | |
1273 | ret = CMD_ERROR; | |
1274 | goto end; | |
1275 | } | |
9f19cc17 | 1276 | |
fb14d0d8 JR |
1277 | if (session_name == NULL) { |
1278 | MSG("Available tracing sessions:"); | |
1279 | } | |
1280 | ||
1281 | ||
1282 | for (i = 0; i < count; i++) { | |
1283 | if (session_name != NULL) { | |
1284 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1285 | session_found = 1; | |
1286 | MSG("Tracing session %s: [%s%s]", session_name, | |
1287 | active_string(sessions[i].enabled), | |
1288 | snapshot_string(sessions[i].snapshot_mode)); | |
1289 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); | |
1290 | break; | |
1291 | } | |
1292 | } else { | |
1293 | MSG(" %d) %s (%s) [%s%s]", i + 1, | |
1294 | sessions[i].name, sessions[i].path, | |
2cbf8fed DG |
1295 | active_string(sessions[i].enabled), |
1296 | snapshot_string(sessions[i].snapshot_mode)); | |
2f785fe7 DG |
1297 | MSG("%sTrace path: %s", indent4, sessions[i].path); |
1298 | MSG("%sLive timer interval (usec): %u\n", indent4, | |
1299 | sessions[i].live_timer_interval); | |
9f19cc17 DG |
1300 | break; |
1301 | } | |
fb14d0d8 JR |
1302 | } |
1303 | ||
1304 | if (!session_found && session_name != NULL) { | |
1305 | ERR("Session '%s' not found", session_name); | |
1306 | ret = CMD_ERROR; | |
1307 | goto error; | |
1308 | } | |
1309 | ||
1310 | if (session_name == NULL) { | |
1311 | MSG("\nUse lttng list <session_name> for more details"); | |
9f19cc17 DG |
1312 | } |
1313 | } | |
1314 | ||
fb14d0d8 | 1315 | error: |
9f19cc17 | 1316 | free(sessions); |
fb14d0d8 JR |
1317 | end: |
1318 | return ret; | |
1319 | } | |
9f19cc17 | 1320 | |
fb14d0d8 JR |
1321 | |
1322 | /* | |
1323 | * Machine Interface | |
1324 | * list available domain(s) for a session. | |
1325 | */ | |
1326 | static int mi_list_domains(struct lttng_domain *domains, int count) | |
1327 | { | |
1328 | int i, ret; | |
1329 | /* Open domains element */ | |
1330 | ret = mi_lttng_domains_open(writer); | |
1331 | if (ret) { | |
1332 | goto end; | |
9f19cc17 DG |
1333 | } |
1334 | ||
fb14d0d8 JR |
1335 | for (i = 0; i < count; i++) { |
1336 | ret = mi_lttng_domain(writer, &domains[i] , 0); | |
1337 | if (ret) { | |
1338 | goto end; | |
1339 | } | |
9f19cc17 | 1340 | } |
f3ed775e | 1341 | |
fb14d0d8 JR |
1342 | /* Closing domains element */ |
1343 | ret = mi_lttng_writer_close_element(writer); | |
1344 | if (ret) { | |
1345 | goto end; | |
1346 | } | |
d32fb093 | 1347 | end: |
f3ed775e DG |
1348 | return ret; |
1349 | } | |
f3ed775e DG |
1350 | |
1351 | /* | |
9f19cc17 | 1352 | * List available domain(s) for a session. |
f3ed775e | 1353 | */ |
330be774 | 1354 | static int list_domains(const char *session_name) |
f3ed775e | 1355 | { |
9f19cc17 DG |
1356 | int i, count, ret = CMD_SUCCESS; |
1357 | struct lttng_domain *domains = NULL; | |
1358 | ||
9f19cc17 | 1359 | |
330be774 | 1360 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 | 1361 | if (count < 0) { |
fb14d0d8 JR |
1362 | ret = CMD_ERROR; |
1363 | ERR("%s", lttng_strerror(count)); | |
9f19cc17 DG |
1364 | goto end; |
1365 | } | |
1366 | ||
fb14d0d8 JR |
1367 | if (lttng_opt_mi) { |
1368 | /* Mi output */ | |
1369 | ret = mi_list_domains(domains, count); | |
1370 | if (ret) { | |
1371 | ret = CMD_ERROR; | |
1372 | goto error; | |
1373 | } | |
1374 | } else { | |
1375 | /* Pretty print */ | |
1376 | MSG("Domains:\n-------------"); | |
1377 | if (count == 0) { | |
1378 | MSG(" None"); | |
1379 | goto end; | |
1380 | } | |
1381 | ||
1382 | for (i = 0; i < count; i++) { | |
1383 | switch (domains[i].type) { | |
1384 | case LTTNG_DOMAIN_KERNEL: | |
1385 | MSG(" - Kernel"); | |
1386 | break; | |
1387 | case LTTNG_DOMAIN_UST: | |
1388 | MSG(" - UST global"); | |
1389 | break; | |
1390 | case LTTNG_DOMAIN_JUL: | |
1391 | MSG(" - JUL (Java Util Logging)"); | |
1392 | break; | |
1393 | default: | |
1394 | break; | |
1395 | } | |
9f19cc17 DG |
1396 | } |
1397 | } | |
1398 | ||
fb14d0d8 | 1399 | error: |
9f19cc17 DG |
1400 | free(domains); |
1401 | ||
fb14d0d8 | 1402 | end: |
9f19cc17 | 1403 | return ret; |
f3ed775e | 1404 | } |
f3ed775e DG |
1405 | |
1406 | /* | |
9f19cc17 | 1407 | * The 'list <options>' first level command |
f3ed775e DG |
1408 | */ |
1409 | int cmd_list(int argc, const char **argv) | |
1410 | { | |
c617c0c6 | 1411 | int opt, ret = CMD_SUCCESS; |
9f19cc17 | 1412 | const char *session_name; |
f3ed775e | 1413 | static poptContext pc; |
9f19cc17 DG |
1414 | struct lttng_domain domain; |
1415 | struct lttng_domain *domains = NULL; | |
f3ed775e | 1416 | |
441c16a7 MD |
1417 | memset(&domain, 0, sizeof(domain)); |
1418 | ||
9f19cc17 | 1419 | if (argc < 1) { |
f3ed775e | 1420 | usage(stderr); |
ca1c3607 | 1421 | ret = CMD_ERROR; |
f3ed775e DG |
1422 | goto end; |
1423 | } | |
1424 | ||
1425 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1426 | poptReadDefaultConfig(pc, 0); | |
1427 | ||
1428 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1429 | switch (opt) { | |
1430 | case OPT_HELP: | |
ca1c3607 | 1431 | usage(stdout); |
f3ed775e | 1432 | goto end; |
eeac7d46 MD |
1433 | case OPT_USERSPACE: |
1434 | opt_userspace = 1; | |
eeac7d46 | 1435 | break; |
679b4943 SM |
1436 | case OPT_LIST_OPTIONS: |
1437 | list_cmd_options(stdout, long_options); | |
679b4943 | 1438 | goto end; |
f3ed775e DG |
1439 | default: |
1440 | usage(stderr); | |
1441 | ret = CMD_UNDEFINED; | |
1442 | goto end; | |
1443 | } | |
1444 | } | |
1445 | ||
fb14d0d8 JR |
1446 | /* Mi check */ |
1447 | if (lttng_opt_mi) { | |
1448 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1449 | if (!writer) { | |
1450 | ret = CMD_ERROR; | |
1451 | goto end; | |
1452 | } | |
1453 | ||
1454 | /* Open command element */ | |
1455 | ret = mi_lttng_writer_command_open(writer, | |
1456 | mi_lttng_element_command_list); | |
1457 | if (ret) { | |
1458 | ret = CMD_ERROR; | |
1459 | goto end; | |
1460 | } | |
1461 | ||
1462 | /* Open output element */ | |
1463 | ret = mi_lttng_writer_open_element(writer, | |
1464 | mi_lttng_element_command_output); | |
1465 | if (ret) { | |
1466 | ret = CMD_ERROR; | |
1467 | goto end; | |
1468 | } | |
1469 | } | |
1470 | ||
9f19cc17 DG |
1471 | /* Get session name (trailing argument) */ |
1472 | session_name = poptGetArg(pc); | |
b551a063 | 1473 | DBG2("Session name: %s", session_name); |
9f19cc17 | 1474 | |
cd80958d DG |
1475 | if (opt_kernel) { |
1476 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
1477 | } else if (opt_userspace) { |
1478 | DBG2("Listing userspace global domain"); | |
1479 | domain.type = LTTNG_DOMAIN_UST; | |
3c6a091f DG |
1480 | } else if (opt_jul) { |
1481 | DBG2("Listing JUL domain"); | |
1482 | domain.type = LTTNG_DOMAIN_JUL; | |
cd80958d DG |
1483 | } |
1484 | ||
3c6a091f | 1485 | if (opt_kernel || opt_userspace || opt_jul) { |
aa5de748 MD |
1486 | handle = lttng_create_handle(session_name, &domain); |
1487 | if (handle == NULL) { | |
1488 | ret = CMD_FATAL; | |
1489 | goto end; | |
1490 | } | |
cd80958d DG |
1491 | } |
1492 | ||
9f19cc17 | 1493 | if (session_name == NULL) { |
3c6a091f | 1494 | if (!opt_kernel && !opt_userspace && !opt_jul) { |
b551a063 | 1495 | ret = list_sessions(NULL); |
fb14d0d8 | 1496 | if (ret) { |
b551a063 DG |
1497 | goto end; |
1498 | } | |
1499 | } | |
9f19cc17 DG |
1500 | if (opt_kernel) { |
1501 | ret = list_kernel_events(); | |
fb14d0d8 | 1502 | if (ret) { |
9f19cc17 DG |
1503 | goto end; |
1504 | } | |
b551a063 DG |
1505 | } |
1506 | if (opt_userspace) { | |
f37d259d MD |
1507 | if (opt_fields) { |
1508 | ret = list_ust_event_fields(); | |
1509 | } else { | |
1510 | ret = list_ust_events(); | |
1511 | } | |
fb14d0d8 | 1512 | if (ret) { |
9f19cc17 DG |
1513 | goto end; |
1514 | } | |
1515 | } | |
3c6a091f DG |
1516 | if (opt_jul) { |
1517 | ret = list_jul_events(); | |
fb14d0d8 | 1518 | if (ret) { |
3c6a091f DG |
1519 | goto end; |
1520 | } | |
1521 | } | |
9f19cc17 DG |
1522 | } else { |
1523 | /* List session attributes */ | |
fb14d0d8 JR |
1524 | if (lttng_opt_mi) { |
1525 | /* Open element sessions | |
1526 | * Present for xml consistency */ | |
1527 | ret = mi_lttng_sessions_open(writer); | |
1528 | if (ret) { | |
1529 | goto end; | |
1530 | } | |
1531 | } | |
1532 | /* MI: the ouptut of list_sessions is an unclosed session element */ | |
9f19cc17 | 1533 | ret = list_sessions(session_name); |
fb14d0d8 | 1534 | if (ret) { |
9f19cc17 DG |
1535 | goto end; |
1536 | } | |
1537 | ||
1538 | /* Domain listing */ | |
1539 | if (opt_domain) { | |
330be774 | 1540 | ret = list_domains(session_name); |
9f19cc17 DG |
1541 | goto end; |
1542 | } | |
1543 | ||
fb14d0d8 | 1544 | /* Channel listing */ |
1c3de747 | 1545 | if (opt_kernel || opt_userspace) { |
fb14d0d8 JR |
1546 | if (lttng_opt_mi) { |
1547 | /* Add of domains and domain element for xml | |
1548 | * consistency and validation | |
1549 | */ | |
1550 | ret = mi_lttng_domains_open(writer); | |
1551 | if (ret) { | |
1552 | goto end; | |
1553 | } | |
1554 | ||
1555 | /* Open domain and leave it open for | |
1556 | * nested channels printing */ | |
1557 | ret = mi_lttng_domain(writer, &domain, 1); | |
1558 | if (ret) { | |
1559 | goto end; | |
1560 | } | |
1561 | ||
1562 | } | |
1563 | ||
cd80958d | 1564 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1565 | if (ret) { |
1566 | goto end; | |
1567 | } | |
1568 | ||
1569 | if (lttng_opt_mi) { | |
1570 | /* Close domain and domain element */ | |
1571 | ret = mi_lttng_close_multi_element(writer, 2); | |
1572 | } | |
1573 | if (ret) { | |
9f19cc17 DG |
1574 | goto end; |
1575 | } | |
fb14d0d8 JR |
1576 | |
1577 | ||
9f19cc17 | 1578 | } else { |
c617c0c6 MD |
1579 | int i, nb_domain; |
1580 | ||
9f19cc17 | 1581 | /* We want all domain(s) */ |
330be774 | 1582 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 1583 | if (nb_domain < 0) { |
fb14d0d8 JR |
1584 | ret = CMD_ERROR; |
1585 | ERR("%s", lttng_strerror(nb_domain)); | |
9f19cc17 DG |
1586 | goto end; |
1587 | } | |
1588 | ||
fb14d0d8 JR |
1589 | if (lttng_opt_mi) { |
1590 | ret = mi_lttng_domains_open(writer); | |
1591 | if (ret) { | |
1592 | ret = CMD_ERROR; | |
1593 | goto end; | |
1594 | } | |
1595 | } | |
1596 | ||
b551a063 | 1597 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
1598 | switch (domains[i].type) { |
1599 | case LTTNG_DOMAIN_KERNEL: | |
1600 | MSG("=== Domain: Kernel ===\n"); | |
1601 | break; | |
b551a063 DG |
1602 | case LTTNG_DOMAIN_UST: |
1603 | MSG("=== Domain: UST global ===\n"); | |
88c5f0d8 DG |
1604 | MSG("Buffer type: %s\n", |
1605 | domains[i].buf_type == | |
1606 | LTTNG_BUFFER_PER_PID ? "per PID" : "per UID"); | |
b551a063 | 1607 | break; |
3c6a091f DG |
1608 | case LTTNG_DOMAIN_JUL: |
1609 | MSG("=== Domain: JUL (Java Util Logging) ===\n"); | |
1610 | break; | |
9f19cc17 DG |
1611 | default: |
1612 | MSG("=== Domain: Unimplemented ===\n"); | |
1613 | break; | |
1614 | } | |
1615 | ||
fb14d0d8 JR |
1616 | if (lttng_opt_mi) { |
1617 | ret = mi_lttng_domain(writer, &domains[i], 1); | |
1618 | if (ret) { | |
1619 | ret = CMD_ERROR; | |
1620 | goto end; | |
1621 | } | |
1622 | } | |
1623 | ||
cd80958d | 1624 | /* Clean handle before creating a new one */ |
aa5de748 MD |
1625 | if (handle) { |
1626 | lttng_destroy_handle(handle); | |
1627 | } | |
cd80958d DG |
1628 | |
1629 | handle = lttng_create_handle(session_name, &domains[i]); | |
1630 | if (handle == NULL) { | |
ca1c3607 | 1631 | ret = CMD_FATAL; |
cd80958d DG |
1632 | goto end; |
1633 | } | |
1634 | ||
3c6a091f DG |
1635 | if (domains[i].type == LTTNG_DOMAIN_JUL) { |
1636 | ret = list_session_jul_events(); | |
fb14d0d8 | 1637 | if (ret) { |
3c6a091f DG |
1638 | goto end; |
1639 | } | |
1640 | continue; | |
1641 | } | |
1642 | ||
cd80958d | 1643 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1644 | if (ret) { |
1645 | goto end; | |
1646 | } | |
1647 | ||
1648 | if (lttng_opt_mi) { | |
1649 | /* Close domain element */ | |
1650 | ret = mi_lttng_writer_close_element(writer); | |
1651 | if (ret) { | |
1652 | ret = CMD_ERROR; | |
1653 | goto end; | |
1654 | } | |
1655 | } | |
1656 | ||
1657 | } | |
1658 | if (lttng_opt_mi) { | |
1659 | /* Close the domains, session and sessions element */ | |
1660 | ret = mi_lttng_close_multi_element(writer, 3); | |
1661 | if (ret) { | |
1662 | ret = CMD_ERROR; | |
9f19cc17 DG |
1663 | goto end; |
1664 | } | |
1665 | } | |
1666 | } | |
f3ed775e DG |
1667 | } |
1668 | ||
fb14d0d8 JR |
1669 | /* Mi closing */ |
1670 | if (lttng_opt_mi) { | |
1671 | /* Close output element */ | |
1672 | ret = mi_lttng_writer_close_element(writer); | |
1673 | if (ret) { | |
1674 | ret = CMD_ERROR; | |
1675 | goto end; | |
1676 | } | |
1677 | ||
1678 | /* Command element close */ | |
1679 | ret = mi_lttng_writer_command_close(writer); | |
1680 | if (ret) { | |
1681 | ret = CMD_ERROR; | |
1682 | goto end; | |
1683 | } | |
1684 | } | |
f3ed775e | 1685 | end: |
fb14d0d8 JR |
1686 | /* Mi clean-up */ |
1687 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1688 | /* Preserve original error code */ | |
1689 | ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL; | |
1690 | } | |
1691 | ||
0e428499 | 1692 | free(domains); |
aa5de748 MD |
1693 | if (handle) { |
1694 | lttng_destroy_handle(handle); | |
1695 | } | |
cd80958d | 1696 | |
ca1c3607 | 1697 | poptFreeContext(pc); |
f3ed775e DG |
1698 | return ret; |
1699 | } |