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; |
5cdb6027 | 33 | static int opt_log4j; |
9f19cc17 DG |
34 | static char *opt_channel; |
35 | static int opt_domain; | |
f37d259d | 36 | static int opt_fields; |
d78d6610 DG |
37 | #if 0 |
38 | /* Not implemented yet */ | |
39 | static char *opt_cmd_name; | |
40 | static pid_t opt_pid; | |
41 | #endif | |
9f19cc17 DG |
42 | |
43 | const char *indent4 = " "; | |
44 | const char *indent6 = " "; | |
45 | const char *indent8 = " "; | |
f3ed775e DG |
46 | |
47 | enum { | |
48 | OPT_HELP = 1, | |
eeac7d46 | 49 | OPT_USERSPACE, |
679b4943 | 50 | OPT_LIST_OPTIONS, |
f3ed775e DG |
51 | }; |
52 | ||
cd80958d | 53 | static struct lttng_handle *handle; |
fb14d0d8 | 54 | static struct mi_writer *writer; |
cd80958d | 55 | |
f3ed775e DG |
56 | static struct poptOption long_options[] = { |
57 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
58 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
9f19cc17 | 59 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, |
3c6a091f | 60 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
5cdb6027 | 61 | {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, |
d78d6610 DG |
62 | #if 0 |
63 | /* Not implemented yet */ | |
64 | {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0}, | |
65 | {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, | |
66 | #else | |
67 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, | |
68 | #endif | |
9f19cc17 DG |
69 | {"channel", 'c', POPT_ARG_STRING, &opt_channel, 0, 0, 0}, |
70 | {"domain", 'd', POPT_ARG_VAL, &opt_domain, 1, 0, 0}, | |
f37d259d | 71 | {"fields", 'f', POPT_ARG_VAL, &opt_fields, 1, 0, 0}, |
679b4943 | 72 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
f3ed775e DG |
73 | {0, 0, 0, 0, 0, 0, 0} |
74 | }; | |
75 | ||
76 | /* | |
77 | * usage | |
78 | */ | |
79 | static void usage(FILE *ofp) | |
80 | { | |
747361fe | 81 | fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [SESSION OPTIONS]]\n"); |
9f19cc17 DG |
82 | fprintf(ofp, "\n"); |
83 | fprintf(ofp, "With no arguments, list available tracing session(s)\n"); | |
84 | fprintf(ofp, "\n"); | |
27221701 DG |
85 | fprintf(ofp, "Without a session, -k lists available kernel events\n"); |
86 | fprintf(ofp, "Without a session, -u lists available userspace events\n"); | |
9f19cc17 DG |
87 | fprintf(ofp, "\n"); |
88 | fprintf(ofp, " -h, --help Show this help\n"); | |
27221701 | 89 | fprintf(ofp, " --list-options Simple listing of options\n"); |
9f19cc17 DG |
90 | fprintf(ofp, " -k, --kernel Select kernel domain\n"); |
91 | fprintf(ofp, " -u, --userspace Select user-space domain.\n"); | |
3c6a091f | 92 | fprintf(ofp, " -j, --jul Apply for Java application using JUL\n"); |
f37d259d | 93 | fprintf(ofp, " -f, --fields List event fields.\n"); |
d78d6610 | 94 | #if 0 |
9f19cc17 | 95 | fprintf(ofp, " -p, --pid PID List user-space events by PID\n"); |
d78d6610 | 96 | #endif |
f3ed775e | 97 | fprintf(ofp, "\n"); |
27221701 | 98 | fprintf(ofp, "Session Options:\n"); |
9f19cc17 DG |
99 | fprintf(ofp, " -c, --channel NAME List details of a channel\n"); |
100 | fprintf(ofp, " -d, --domain List available domain(s)\n"); | |
f3ed775e DG |
101 | fprintf(ofp, "\n"); |
102 | } | |
103 | ||
104 | /* | |
9f19cc17 | 105 | * Get command line from /proc for a specific pid. |
f3ed775e | 106 | * |
9f19cc17 DG |
107 | * On success, return an allocated string pointer to the proc cmdline. |
108 | * On error, return NULL. | |
f3ed775e DG |
109 | */ |
110 | static char *get_cmdline_by_pid(pid_t pid) | |
111 | { | |
112 | int ret; | |
113 | FILE *fp; | |
114 | char *cmdline = NULL; | |
5f1abdd9 | 115 | char path[20]; /* Can't go bigger than /proc/65535/cmdline */ |
f3ed775e DG |
116 | |
117 | snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); | |
118 | fp = fopen(path, "r"); | |
119 | if (fp == NULL) { | |
120 | goto end; | |
121 | } | |
122 | ||
123 | /* Caller must free() *cmdline */ | |
124 | cmdline = malloc(PATH_MAX); | |
f6962219 JG |
125 | if (!cmdline) { |
126 | perror("malloc cmdline"); | |
127 | goto end; | |
128 | } | |
f3ed775e | 129 | ret = fread(cmdline, 1, PATH_MAX, fp); |
f40799e8 DG |
130 | if (ret < 0) { |
131 | perror("fread proc list"); | |
132 | } | |
f3ed775e DG |
133 | fclose(fp); |
134 | ||
135 | end: | |
136 | return cmdline; | |
137 | } | |
b551a063 | 138 | |
464dd62d MD |
139 | static |
140 | const char *active_string(int value) | |
141 | { | |
142 | switch (value) { | |
2cbf8fed DG |
143 | case 0: return "inactive"; |
144 | case 1: return "active"; | |
464dd62d MD |
145 | case -1: return ""; |
146 | default: return NULL; | |
147 | } | |
148 | } | |
149 | ||
2cbf8fed DG |
150 | static const char *snapshot_string(int value) |
151 | { | |
152 | switch (value) { | |
153 | case 1: | |
154 | return " snapshot"; | |
155 | default: | |
156 | return ""; | |
157 | } | |
158 | } | |
159 | ||
464dd62d MD |
160 | static |
161 | const char *enabled_string(int value) | |
162 | { | |
163 | switch (value) { | |
b09f0429 MD |
164 | case 0: return " [disabled]"; |
165 | case 1: return " [enabled]"; | |
464dd62d MD |
166 | case -1: return ""; |
167 | default: return NULL; | |
168 | } | |
169 | } | |
170 | ||
fceb65df MD |
171 | static |
172 | const char *filter_string(int value) | |
173 | { | |
174 | switch (value) { | |
175 | case 1: return " [with filter]"; | |
176 | default: return ""; | |
177 | } | |
178 | } | |
179 | ||
4634f12e JI |
180 | static |
181 | const char *exclusion_string(int value) | |
182 | { | |
183 | switch (value) { | |
184 | case 1: return " [has exclusions]"; | |
185 | default: return ""; | |
186 | } | |
187 | } | |
188 | ||
1f0e17de DG |
189 | static const char *logleveltype_string(enum lttng_loglevel_type value) |
190 | { | |
191 | switch (value) { | |
af6bce80 DG |
192 | case LTTNG_EVENT_LOGLEVEL_ALL: |
193 | return ":"; | |
1f0e17de | 194 | case LTTNG_EVENT_LOGLEVEL_RANGE: |
af6bce80 | 195 | return " <="; |
1f0e17de | 196 | case LTTNG_EVENT_LOGLEVEL_SINGLE: |
af6bce80 | 197 | return " =="; |
1f0e17de | 198 | default: |
af6bce80 | 199 | return " <<TYPE UNKN>>"; |
1f0e17de DG |
200 | } |
201 | } | |
202 | ||
b551a063 DG |
203 | /* |
204 | * Pretty print single event. | |
205 | */ | |
206 | static void print_events(struct lttng_event *event) | |
207 | { | |
208 | switch (event->type) { | |
209 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 210 | { |
8b703175 | 211 | if (event->loglevel != -1) { |
af6bce80 | 212 | MSG("%s%s (loglevel%s %s (%d)) (type: tracepoint)%s%s%s", |
8b703175 | 213 | indent6, |
81afa345 | 214 | event->name, |
1f0e17de | 215 | logleveltype_string(event->loglevel_type), |
fb14d0d8 | 216 | mi_lttng_loglevel_string(event->loglevel), |
8b703175 | 217 | event->loglevel, |
fceb65df | 218 | enabled_string(event->enabled), |
4634f12e | 219 | exclusion_string(event->exclusion), |
fceb65df | 220 | filter_string(event->filter)); |
8b703175 | 221 | } else { |
4634f12e | 222 | MSG("%s%s (type: tracepoint)%s%s%s", |
8b703175 MD |
223 | indent6, |
224 | event->name, | |
fceb65df | 225 | enabled_string(event->enabled), |
4634f12e | 226 | exclusion_string(event->exclusion), |
fceb65df | 227 | filter_string(event->filter)); |
8b703175 | 228 | } |
b551a063 | 229 | break; |
e4baff1e | 230 | } |
1896972b DG |
231 | case LTTNG_EVENT_FUNCTION: |
232 | MSG("%s%s (type: function)%s%s", indent6, | |
233 | event->name, enabled_string(event->enabled), | |
234 | filter_string(event->filter)); | |
235 | if (event->attr.probe.addr != 0) { | |
236 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
237 | } else { | |
238 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
239 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
240 | } | |
241 | break; | |
b551a063 | 242 | case LTTNG_EVENT_PROBE: |
fceb65df MD |
243 | MSG("%s%s (type: probe)%s%s", indent6, |
244 | event->name, enabled_string(event->enabled), | |
245 | filter_string(event->filter)); | |
b551a063 DG |
246 | if (event->attr.probe.addr != 0) { |
247 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
248 | } else { | |
249 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
250 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
251 | } | |
252 | break; | |
b551a063 | 253 | case LTTNG_EVENT_FUNCTION_ENTRY: |
fceb65df MD |
254 | MSG("%s%s (type: function)%s%s", indent6, |
255 | event->name, enabled_string(event->enabled), | |
256 | filter_string(event->filter)); | |
b551a063 DG |
257 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
258 | break; | |
259 | case LTTNG_EVENT_SYSCALL: | |
fceb65df MD |
260 | MSG("%ssyscalls (type: syscall)%s%s", indent6, |
261 | enabled_string(event->enabled), | |
262 | filter_string(event->filter)); | |
b551a063 DG |
263 | break; |
264 | case LTTNG_EVENT_NOOP: | |
fceb65df MD |
265 | MSG("%s (type: noop)%s%s", indent6, |
266 | enabled_string(event->enabled), | |
267 | filter_string(event->filter)); | |
b551a063 DG |
268 | break; |
269 | case LTTNG_EVENT_ALL: | |
270 | /* We should never have "all" events in list. */ | |
271 | assert(0); | |
272 | break; | |
273 | } | |
274 | } | |
275 | ||
f37d259d MD |
276 | static const char *field_type(struct lttng_event_field *field) |
277 | { | |
278 | switch(field->type) { | |
279 | case LTTNG_EVENT_FIELD_INTEGER: | |
280 | return "integer"; | |
281 | case LTTNG_EVENT_FIELD_ENUM: | |
282 | return "enum"; | |
283 | case LTTNG_EVENT_FIELD_FLOAT: | |
284 | return "float"; | |
285 | case LTTNG_EVENT_FIELD_STRING: | |
286 | return "string"; | |
287 | case LTTNG_EVENT_FIELD_OTHER: | |
288 | default: /* fall-through */ | |
289 | return "unknown"; | |
290 | } | |
291 | } | |
292 | ||
293 | /* | |
294 | * Pretty print single event fields. | |
295 | */ | |
296 | static void print_event_field(struct lttng_event_field *field) | |
297 | { | |
298 | if (!field->field_name[0]) { | |
299 | return; | |
300 | } | |
d8fbe2a9 | 301 | MSG("%sfield: %s (%s)%s", indent8, field->field_name, |
45a32634 | 302 | field_type(field), field->nowrite ? " [no write]" : ""); |
f37d259d MD |
303 | } |
304 | ||
fb14d0d8 JR |
305 | /* |
306 | * Machine interface | |
307 | * Jul and ust event listing | |
308 | */ | |
5cdb6027 | 309 | static int mi_list_agent_ust_events(struct lttng_event *events, int count, |
fb14d0d8 JR |
310 | struct lttng_domain *domain) |
311 | { | |
312 | int ret, i; | |
313 | pid_t cur_pid = 0; | |
314 | char *cmdline = NULL; | |
315 | int pid_element_open = 0; | |
316 | ||
317 | /* Open domains element */ | |
318 | ret = mi_lttng_domains_open(writer); | |
319 | if (ret) { | |
320 | goto end; | |
321 | } | |
322 | ||
323 | /* Write domain */ | |
324 | ret = mi_lttng_domain(writer, domain, 1); | |
325 | if (ret) { | |
326 | goto end; | |
327 | } | |
328 | ||
329 | /* Open pids element */ | |
330 | ret = mi_lttng_pids_open(writer); | |
331 | if (ret) { | |
332 | goto end; | |
333 | } | |
334 | ||
335 | for (i = 0; i < count; i++) { | |
336 | if (cur_pid != events[i].pid) { | |
337 | if (pid_element_open) { | |
338 | /* Close the previous events and pid element */ | |
339 | ret = mi_lttng_close_multi_element(writer, 2); | |
340 | if (ret) { | |
341 | goto end; | |
342 | } | |
343 | pid_element_open = 0; | |
344 | } | |
345 | ||
346 | cur_pid = events[i].pid; | |
347 | cmdline = get_cmdline_by_pid(cur_pid); | |
348 | if (!cmdline) { | |
349 | ret = CMD_ERROR; | |
350 | goto end; | |
351 | } | |
352 | ||
353 | if (!pid_element_open) { | |
354 | /* Open and write a pid element */ | |
355 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
356 | if (ret) { | |
357 | goto error; | |
358 | } | |
359 | ||
360 | /* Open events element */ | |
361 | ret = mi_lttng_events_open(writer); | |
362 | if (ret) { | |
363 | goto error; | |
364 | } | |
365 | ||
366 | pid_element_open = 1; | |
367 | } | |
368 | free(cmdline); | |
369 | } | |
370 | ||
371 | /* Write an event */ | |
372 | ret = mi_lttng_event(writer, &events[i], 0); | |
373 | if (ret) { | |
374 | goto end; | |
375 | } | |
376 | } | |
377 | ||
378 | /* Close pids */ | |
379 | ret = mi_lttng_writer_close_element(writer); | |
380 | if (ret) { | |
381 | goto end; | |
382 | } | |
383 | ||
384 | /* Close domain, domains */ | |
385 | ret = mi_lttng_close_multi_element(writer, 2); | |
386 | end: | |
387 | return ret; | |
388 | error: | |
389 | free(cmdline); | |
390 | return ret; | |
391 | } | |
392 | ||
5cdb6027 | 393 | static int list_agent_events(void) |
3c6a091f | 394 | { |
fb14d0d8 | 395 | int i, size, ret = CMD_SUCCESS; |
3c6a091f DG |
396 | struct lttng_domain domain; |
397 | struct lttng_handle *handle; | |
398 | struct lttng_event *event_list; | |
399 | pid_t cur_pid = 0; | |
400 | char *cmdline = NULL; | |
5cdb6027 | 401 | const char *agent_domain_str; |
3c6a091f DG |
402 | |
403 | memset(&domain, 0, sizeof(domain)); | |
5cdb6027 DG |
404 | if (opt_jul) { |
405 | domain.type = LTTNG_DOMAIN_JUL; | |
406 | } else if (opt_log4j) { | |
407 | domain.type = LTTNG_DOMAIN_LOG4J; | |
408 | } | |
409 | ||
410 | agent_domain_str = get_domain_str(domain.type); | |
411 | ||
412 | DBG("Getting %s tracing events", agent_domain_str); | |
3c6a091f DG |
413 | |
414 | handle = lttng_create_handle(NULL, &domain); | |
415 | if (handle == NULL) { | |
fb14d0d8 JR |
416 | ret = CMD_ERROR; |
417 | goto end; | |
3c6a091f DG |
418 | } |
419 | ||
420 | size = lttng_list_tracepoints(handle, &event_list); | |
421 | if (size < 0) { | |
5cdb6027 DG |
422 | ERR("Unable to list %s events: %s", agent_domain_str, |
423 | lttng_strerror(size)); | |
fb14d0d8 JR |
424 | ret = CMD_ERROR; |
425 | goto end; | |
3c6a091f DG |
426 | } |
427 | ||
fb14d0d8 JR |
428 | if (lttng_opt_mi) { |
429 | /* Mi print */ | |
5cdb6027 | 430 | ret = mi_list_agent_ust_events(event_list, size, &domain); |
fb14d0d8 JR |
431 | if (ret) { |
432 | ret = CMD_ERROR; | |
433 | goto error; | |
3c6a091f | 434 | } |
fb14d0d8 JR |
435 | } else { |
436 | /* Pretty print */ | |
5cdb6027 DG |
437 | MSG("%s events (Logger name):\n-------------------------", |
438 | agent_domain_str); | |
3c6a091f | 439 | |
fb14d0d8 JR |
440 | if (size == 0) { |
441 | MSG("None"); | |
442 | } | |
3c6a091f | 443 | |
fb14d0d8 JR |
444 | for (i = 0; i < size; i++) { |
445 | if (cur_pid != event_list[i].pid) { | |
446 | cur_pid = event_list[i].pid; | |
447 | cmdline = get_cmdline_by_pid(cur_pid); | |
448 | if (cmdline == NULL) { | |
449 | ret = CMD_ERROR; | |
450 | goto error; | |
451 | } | |
452 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
453 | free(cmdline); | |
454 | } | |
455 | MSG("%s- %s", indent6, event_list[i].name); | |
456 | } | |
3c6a091f | 457 | |
fb14d0d8 JR |
458 | MSG(""); |
459 | } | |
3c6a091f DG |
460 | |
461 | error: | |
fb14d0d8 JR |
462 | free(event_list); |
463 | end: | |
3c6a091f | 464 | lttng_destroy_handle(handle); |
fb14d0d8 | 465 | return ret; |
3c6a091f DG |
466 | } |
467 | ||
b551a063 DG |
468 | /* |
469 | * Ask session daemon for all user space tracepoints available. | |
470 | */ | |
471 | static int list_ust_events(void) | |
472 | { | |
fb14d0d8 | 473 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
474 | struct lttng_domain domain; |
475 | struct lttng_handle *handle; | |
476 | struct lttng_event *event_list; | |
477 | pid_t cur_pid = 0; | |
ea5cbc00 | 478 | char *cmdline = NULL; |
b551a063 | 479 | |
441c16a7 MD |
480 | memset(&domain, 0, sizeof(domain)); |
481 | ||
b551a063 DG |
482 | DBG("Getting UST tracing events"); |
483 | ||
484 | domain.type = LTTNG_DOMAIN_UST; | |
485 | ||
486 | handle = lttng_create_handle(NULL, &domain); | |
487 | if (handle == NULL) { | |
fb14d0d8 JR |
488 | ret = CMD_ERROR; |
489 | goto end; | |
b551a063 DG |
490 | } |
491 | ||
492 | size = lttng_list_tracepoints(handle, &event_list); | |
493 | if (size < 0) { | |
60e835ca | 494 | ERR("Unable to list UST events: %s", lttng_strerror(size)); |
fb14d0d8 JR |
495 | ret = CMD_ERROR; |
496 | goto error; | |
b551a063 DG |
497 | } |
498 | ||
fb14d0d8 JR |
499 | if (lttng_opt_mi) { |
500 | /* Mi print */ | |
5cdb6027 | 501 | ret = mi_list_agent_ust_events(event_list, size, &domain); |
fb14d0d8 JR |
502 | } else { |
503 | /* Pretty print */ | |
504 | MSG("UST events:\n-------------"); | |
505 | ||
506 | if (size == 0) { | |
507 | MSG("None"); | |
508 | } | |
509 | ||
510 | for (i = 0; i < size; i++) { | |
511 | if (cur_pid != event_list[i].pid) { | |
512 | cur_pid = event_list[i].pid; | |
513 | cmdline = get_cmdline_by_pid(cur_pid); | |
514 | if (cmdline == NULL) { | |
515 | ret = CMD_ERROR; | |
516 | goto error; | |
517 | } | |
518 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
519 | free(cmdline); | |
520 | } | |
521 | print_events(&event_list[i]); | |
522 | } | |
b551a063 | 523 | |
fb14d0d8 | 524 | MSG(""); |
b551a063 DG |
525 | } |
526 | ||
fb14d0d8 JR |
527 | error: |
528 | free(event_list); | |
529 | end: | |
530 | lttng_destroy_handle(handle); | |
531 | return ret; | |
532 | } | |
533 | ||
534 | /* | |
535 | * Machine interface | |
536 | * List all ust event with their fields | |
537 | */ | |
538 | static int mi_list_ust_event_fields(struct lttng_event_field *fields, int count, | |
539 | struct lttng_domain *domain) | |
540 | { | |
541 | int ret, i; | |
542 | pid_t cur_pid = 0; | |
543 | char *cmdline = NULL; | |
544 | int pid_element_open = 0; | |
545 | int event_element_open = 0; | |
546 | struct lttng_event cur_event; | |
547 | ||
548 | /* Open domains element */ | |
549 | ret = mi_lttng_domains_open(writer); | |
550 | if (ret) { | |
551 | goto end; | |
552 | } | |
553 | ||
554 | /* Write domain */ | |
555 | ret = mi_lttng_domain(writer, domain, 1); | |
556 | if (ret) { | |
557 | goto end; | |
558 | } | |
559 | ||
560 | /* Open pids element */ | |
561 | ret = mi_lttng_pids_open(writer); | |
562 | if (ret) { | |
563 | goto end; | |
564 | } | |
565 | ||
566 | for (i = 0; i < count; i++) { | |
567 | if (cur_pid != fields[i].event.pid) { | |
568 | if (pid_element_open) { | |
569 | if (event_element_open) { | |
485ca16f DG |
570 | |
571 | /* Close the previous field element and event. */ | |
fb14d0d8 JR |
572 | ret = mi_lttng_close_multi_element(writer, 2); |
573 | if (ret) { | |
574 | goto end; | |
575 | } | |
576 | event_element_open = 0; | |
577 | } | |
578 | /* Close the previous events, pid element */ | |
579 | ret = mi_lttng_close_multi_element(writer, 2); | |
580 | if (ret) { | |
581 | goto end; | |
582 | } | |
583 | pid_element_open = 0; | |
584 | } | |
585 | ||
586 | cur_pid = fields[i].event.pid; | |
ea5cbc00 | 587 | cmdline = get_cmdline_by_pid(cur_pid); |
fb14d0d8 JR |
588 | if (!pid_element_open) { |
589 | /* Open and write a pid element */ | |
590 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
591 | if (ret) { | |
592 | goto error; | |
593 | } | |
594 | ||
595 | /* Open events element */ | |
596 | ret = mi_lttng_events_open(writer); | |
597 | if (ret) { | |
598 | goto error; | |
599 | } | |
600 | pid_element_open = 1; | |
601 | } | |
ea5cbc00 | 602 | free(cmdline); |
fb14d0d8 JR |
603 | /* Wipe current event since we are about to print a new PID. */ |
604 | memset(&cur_event, 0, sizeof(cur_event)); | |
b551a063 | 605 | } |
b551a063 | 606 | |
fb14d0d8 JR |
607 | if (strcmp(cur_event.name, fields[i].event.name) != 0) { |
608 | if (event_element_open) { | |
609 | /* Close the previous fields element and the previous event */ | |
610 | ret = mi_lttng_close_multi_element(writer, 2); | |
611 | if (ret) { | |
612 | goto end; | |
613 | } | |
614 | event_element_open = 0; | |
615 | } | |
616 | ||
617 | memcpy(&cur_event, &fields[i].event, | |
618 | sizeof(cur_event)); | |
b551a063 | 619 | |
fb14d0d8 JR |
620 | if (!event_element_open) { |
621 | /* Open and write the event */ | |
622 | ret = mi_lttng_event(writer, &cur_event, 1); | |
623 | if (ret) { | |
624 | goto end; | |
625 | } | |
626 | ||
627 | /* Open a fields element */ | |
628 | ret = mi_lttng_event_fields_open(writer); | |
629 | if (ret) { | |
630 | goto end; | |
631 | } | |
632 | event_element_open = 1; | |
633 | } | |
634 | } | |
b551a063 | 635 | |
fb14d0d8 JR |
636 | /* Print the event_field */ |
637 | ret = mi_lttng_event_field(writer, &fields[i]); | |
638 | if (ret) { | |
639 | goto end; | |
640 | } | |
641 | } | |
b551a063 | 642 | |
fb14d0d8 JR |
643 | /* Close pids, domain, domains */ |
644 | ret = mi_lttng_close_multi_element(writer, 3); | |
645 | end: | |
646 | return ret; | |
b551a063 | 647 | error: |
fb14d0d8 JR |
648 | free(cmdline); |
649 | return ret; | |
b551a063 | 650 | } |
f3ed775e | 651 | |
f37d259d MD |
652 | /* |
653 | * Ask session daemon for all user space tracepoint fields available. | |
654 | */ | |
655 | static int list_ust_event_fields(void) | |
656 | { | |
fb14d0d8 | 657 | int i, size, ret = CMD_SUCCESS; |
f37d259d MD |
658 | struct lttng_domain domain; |
659 | struct lttng_handle *handle; | |
660 | struct lttng_event_field *event_field_list; | |
661 | pid_t cur_pid = 0; | |
ea5cbc00 CB |
662 | char *cmdline = NULL; |
663 | ||
f37d259d MD |
664 | struct lttng_event cur_event; |
665 | ||
666 | memset(&domain, 0, sizeof(domain)); | |
667 | memset(&cur_event, 0, sizeof(cur_event)); | |
668 | ||
669 | DBG("Getting UST tracing event fields"); | |
670 | ||
671 | domain.type = LTTNG_DOMAIN_UST; | |
672 | ||
673 | handle = lttng_create_handle(NULL, &domain); | |
674 | if (handle == NULL) { | |
fb14d0d8 JR |
675 | ret = CMD_ERROR; |
676 | goto end; | |
f37d259d MD |
677 | } |
678 | ||
679 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
680 | if (size < 0) { | |
60e835ca | 681 | ERR("Unable to list UST event fields: %s", lttng_strerror(size)); |
fb14d0d8 JR |
682 | ret = CMD_ERROR; |
683 | goto end; | |
f37d259d MD |
684 | } |
685 | ||
fb14d0d8 JR |
686 | if (lttng_opt_mi) { |
687 | /* Mi print */ | |
688 | ret = mi_list_ust_event_fields(event_field_list, size, &domain); | |
689 | if (ret) { | |
690 | ret = CMD_ERROR; | |
691 | goto error; | |
692 | } | |
693 | } else { | |
694 | /* Pretty print */ | |
695 | MSG("UST events:\n-------------"); | |
f37d259d | 696 | |
fb14d0d8 JR |
697 | if (size == 0) { |
698 | MSG("None"); | |
f37d259d | 699 | } |
fb14d0d8 JR |
700 | |
701 | for (i = 0; i < size; i++) { | |
702 | if (cur_pid != event_field_list[i].event.pid) { | |
703 | cur_pid = event_field_list[i].event.pid; | |
704 | cmdline = get_cmdline_by_pid(cur_pid); | |
705 | if (cmdline == NULL) { | |
706 | ret = CMD_ERROR; | |
707 | goto error; | |
708 | } | |
709 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
710 | free(cmdline); | |
711 | /* Wipe current event since we are about to print a new PID. */ | |
712 | memset(&cur_event, 0, sizeof(cur_event)); | |
713 | } | |
714 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
715 | print_events(&event_field_list[i].event); | |
716 | memcpy(&cur_event, &event_field_list[i].event, | |
717 | sizeof(cur_event)); | |
718 | } | |
719 | print_event_field(&event_field_list[i]); | |
f37d259d | 720 | } |
f37d259d | 721 | |
fb14d0d8 JR |
722 | MSG(""); |
723 | } | |
f37d259d | 724 | |
fb14d0d8 | 725 | error: |
f37d259d | 726 | free(event_field_list); |
fb14d0d8 | 727 | end: |
f37d259d | 728 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
729 | return ret; |
730 | } | |
f37d259d | 731 | |
fb14d0d8 JR |
732 | /* |
733 | * Machine interface | |
734 | * Print a list of kernel events | |
735 | */ | |
736 | static int mi_list_kernel_events(struct lttng_event *events, int count, | |
737 | struct lttng_domain *domain) | |
738 | { | |
739 | int ret, i; | |
f37d259d | 740 | |
fb14d0d8 JR |
741 | /* Open domains element */ |
742 | ret = mi_lttng_domains_open(writer); | |
743 | if (ret) { | |
744 | goto end; | |
745 | } | |
746 | ||
747 | /* Write domain */ | |
748 | ret = mi_lttng_domain(writer, domain, 1); | |
749 | if (ret) { | |
750 | goto end; | |
751 | } | |
752 | ||
753 | /* Open events */ | |
754 | ret = mi_lttng_events_open(writer); | |
755 | if (ret) { | |
756 | goto end; | |
757 | } | |
758 | ||
759 | for (i = 0; i < count; i++) { | |
d58bb917 | 760 | ret = mi_lttng_event(writer, &events[i], 0); |
fb14d0d8 JR |
761 | if (ret) { |
762 | goto end; | |
763 | } | |
764 | } | |
765 | ||
766 | /* close events, domain and domains */ | |
767 | ret = mi_lttng_close_multi_element(writer, 3); | |
768 | if (ret) { | |
769 | goto end; | |
770 | } | |
771 | ||
772 | end: | |
773 | return ret; | |
f37d259d MD |
774 | } |
775 | ||
f3ed775e | 776 | /* |
fb14d0d8 | 777 | * Ask for all trace events in the kernel |
f3ed775e | 778 | */ |
9f19cc17 | 779 | static int list_kernel_events(void) |
f3ed775e | 780 | { |
fb14d0d8 | 781 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
782 | struct lttng_domain domain; |
783 | struct lttng_handle *handle; | |
9f19cc17 | 784 | struct lttng_event *event_list; |
f3ed775e | 785 | |
441c16a7 MD |
786 | memset(&domain, 0, sizeof(domain)); |
787 | ||
b551a063 DG |
788 | DBG("Getting kernel tracing events"); |
789 | ||
790 | domain.type = LTTNG_DOMAIN_KERNEL; | |
791 | ||
792 | handle = lttng_create_handle(NULL, &domain); | |
793 | if (handle == NULL) { | |
fb14d0d8 | 794 | ret = CMD_ERROR; |
b551a063 DG |
795 | goto error; |
796 | } | |
f3ed775e | 797 | |
cd80958d | 798 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 | 799 | if (size < 0) { |
60e835ca | 800 | ERR("Unable to list kernel events: %s", lttng_strerror(size)); |
ef021732 | 801 | lttng_destroy_handle(handle); |
fb14d0d8 | 802 | return CMD_ERROR; |
f3ed775e DG |
803 | } |
804 | ||
fb14d0d8 JR |
805 | if (lttng_opt_mi) { |
806 | /* Mi print */ | |
807 | ret = mi_list_kernel_events(event_list, size, &domain); | |
808 | if (ret) { | |
809 | ret = CMD_ERROR; | |
810 | goto end; | |
811 | } | |
812 | } else { | |
813 | MSG("Kernel events:\n-------------"); | |
f3ed775e | 814 | |
fb14d0d8 JR |
815 | for (i = 0; i < size; i++) { |
816 | print_events(&event_list[i]); | |
817 | } | |
f3ed775e | 818 | |
fb14d0d8 JR |
819 | MSG(""); |
820 | } | |
b551a063 | 821 | |
fb14d0d8 | 822 | end: |
f3ed775e DG |
823 | free(event_list); |
824 | ||
ef021732 | 825 | lttng_destroy_handle(handle); |
fb14d0d8 | 826 | return ret; |
b551a063 DG |
827 | |
828 | error: | |
ef021732 | 829 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
830 | return ret; |
831 | } | |
832 | ||
833 | /* | |
834 | * Machine Interface | |
5cdb6027 | 835 | * Print a list of agent events |
fb14d0d8 | 836 | */ |
5cdb6027 | 837 | static int mi_list_session_agent_events(struct lttng_event *events, int count) |
fb14d0d8 JR |
838 | { |
839 | int ret, i; | |
840 | ||
841 | /* Open events element */ | |
842 | ret = mi_lttng_events_open(writer); | |
843 | if (ret) { | |
844 | goto end; | |
845 | } | |
846 | ||
847 | for (i = 0; i < count; i++) { | |
848 | ret = mi_lttng_event(writer, &events[i], 0); | |
849 | if (ret) { | |
850 | goto end; | |
851 | } | |
852 | } | |
853 | ||
854 | /* Close events element */ | |
855 | ret = mi_lttng_writer_close_element(writer); | |
856 | ||
857 | end: | |
858 | return ret; | |
f3ed775e DG |
859 | } |
860 | ||
3c6a091f | 861 | /* |
5cdb6027 | 862 | * List agent events for a specific session using the handle. |
3c6a091f DG |
863 | * |
864 | * Return CMD_SUCCESS on success else a negative value. | |
865 | */ | |
5cdb6027 | 866 | static int list_session_agent_events(void) |
3c6a091f | 867 | { |
fb14d0d8 | 868 | int ret = CMD_SUCCESS, count, i; |
3c6a091f DG |
869 | struct lttng_event *events = NULL; |
870 | ||
871 | count = lttng_list_events(handle, "", &events); | |
872 | if (count < 0) { | |
fb14d0d8 JR |
873 | ret = CMD_ERROR; |
874 | ERR("%s", lttng_strerror(count)); | |
3c6a091f DG |
875 | goto error; |
876 | } | |
877 | ||
fb14d0d8 JR |
878 | if (lttng_opt_mi) { |
879 | /* Mi print */ | |
5cdb6027 | 880 | ret = mi_list_session_agent_events(events, count); |
fb14d0d8 JR |
881 | if (ret) { |
882 | ret = CMD_ERROR; | |
883 | goto end; | |
884 | } | |
885 | } else { | |
886 | /* Pretty print */ | |
887 | MSG("Events (Logger name):\n---------------------"); | |
888 | if (count == 0) { | |
889 | MSG("%sNone\n", indent6); | |
890 | goto end; | |
891 | } | |
892 | ||
893 | for (i = 0; i < count; i++) { | |
894 | MSG("%s- %s%s (loglevel%s %s)", indent4, events[i].name, | |
895 | enabled_string(events[i].enabled), | |
896 | logleveltype_string(events[i].loglevel_type), | |
136f2f81 | 897 | mi_lttng_loglevel_string(events[i].loglevel)); |
fb14d0d8 JR |
898 | } |
899 | ||
900 | MSG(""); | |
901 | } | |
902 | ||
903 | end: | |
904 | free(events); | |
905 | error: | |
906 | return ret; | |
907 | } | |
908 | ||
909 | /* | |
910 | * Machine interface | |
911 | * print a list of event | |
912 | */ | |
913 | static int mi_list_events(struct lttng_event *events, int count) | |
914 | { | |
915 | int ret, i; | |
916 | ||
917 | /* Open events element */ | |
918 | ret = mi_lttng_events_open(writer); | |
919 | if (ret) { | |
3c6a091f DG |
920 | goto end; |
921 | } | |
922 | ||
923 | for (i = 0; i < count; i++) { | |
fb14d0d8 JR |
924 | ret = mi_lttng_event(writer, &events[i], 0); |
925 | if (ret) { | |
926 | goto end; | |
927 | } | |
3c6a091f DG |
928 | } |
929 | ||
fb14d0d8 JR |
930 | /* Close events element */ |
931 | ret = mi_lttng_writer_close_element(writer); | |
3c6a091f DG |
932 | |
933 | end: | |
3c6a091f DG |
934 | return ret; |
935 | } | |
936 | ||
f3ed775e | 937 | /* |
9f19cc17 | 938 | * List events of channel of session and domain. |
f3ed775e | 939 | */ |
cd80958d | 940 | static int list_events(const char *channel_name) |
f3ed775e | 941 | { |
fb14d0d8 | 942 | int ret = CMD_SUCCESS, count, i; |
9f19cc17 | 943 | struct lttng_event *events = NULL; |
f3ed775e | 944 | |
cd80958d | 945 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e | 946 | if (count < 0) { |
fb14d0d8 JR |
947 | ret = CMD_ERROR; |
948 | ERR("%s", lttng_strerror(count)); | |
f3ed775e DG |
949 | goto error; |
950 | } | |
951 | ||
fb14d0d8 JR |
952 | if (lttng_opt_mi) { |
953 | /* Mi print */ | |
954 | ret = mi_list_events(events, count); | |
955 | if (ret) { | |
956 | ret = CMD_ERROR; | |
957 | goto end; | |
958 | } | |
959 | } else { | |
960 | /* Pretty print */ | |
961 | MSG("\n%sEvents:", indent4); | |
962 | if (count == 0) { | |
963 | MSG("%sNone\n", indent6); | |
964 | goto end; | |
965 | } | |
f3ed775e | 966 | |
fb14d0d8 JR |
967 | for (i = 0; i < count; i++) { |
968 | print_events(&events[i]); | |
969 | } | |
f3ed775e | 970 | |
fb14d0d8 JR |
971 | MSG(""); |
972 | } | |
9f19cc17 | 973 | end: |
0e428499 | 974 | free(events); |
f3ed775e DG |
975 | error: |
976 | return ret; | |
977 | } | |
978 | ||
979 | /* | |
9f19cc17 DG |
980 | * Pretty print channel |
981 | */ | |
982 | static void print_channel(struct lttng_channel *channel) | |
983 | { | |
464dd62d | 984 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
985 | |
986 | MSG("%sAttributes:", indent4); | |
a5bbe8f6 DG |
987 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); |
988 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
9f19cc17 | 989 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); |
a5bbe8f6 DG |
990 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); |
991 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
2f785fe7 DG |
992 | MSG("%strace file count: %" PRIu64, indent6, channel->attr.tracefile_count); |
993 | MSG("%strace file size (bytes): %" PRIu64, indent6, channel->attr.tracefile_size); | |
9f19cc17 DG |
994 | switch (channel->attr.output) { |
995 | case LTTNG_EVENT_SPLICE: | |
996 | MSG("%soutput: splice()", indent6); | |
997 | break; | |
998 | case LTTNG_EVENT_MMAP: | |
999 | MSG("%soutput: mmap()", indent6); | |
1000 | break; | |
1001 | } | |
1002 | } | |
1003 | ||
fb14d0d8 JR |
1004 | /* |
1005 | * Machine interface | |
1006 | * Print a list of channel | |
1007 | * | |
1008 | */ | |
1009 | static int mi_list_channels(struct lttng_channel *channels, int count, | |
1010 | const char *channel_name) | |
1011 | { | |
1012 | int i, ret; | |
1013 | unsigned int chan_found = 0; | |
1014 | ||
1015 | /* Open channels element */ | |
1016 | ret = mi_lttng_channels_open(writer); | |
1017 | if (ret) { | |
1018 | goto error; | |
1019 | } | |
1020 | ||
1021 | for (i = 0; i < count; i++) { | |
1022 | if (channel_name != NULL) { | |
1023 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1024 | chan_found = 1; | |
1025 | } else { | |
1026 | continue; | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | /* Write channel element and leave it open */ | |
1031 | ret = mi_lttng_channel(writer, &channels[i], 1); | |
1032 | if (ret) { | |
1033 | goto error; | |
1034 | } | |
1035 | ||
1036 | /* Listing events per channel */ | |
1037 | ret = list_events(channels[i].name); | |
1038 | if (ret) { | |
1039 | goto error; | |
1040 | } | |
1041 | ||
1042 | /* Closing the channel element we opened earlier */ | |
1043 | ret = mi_lttng_writer_close_element(writer); | |
1044 | if (ret) { | |
1045 | goto error; | |
1046 | } | |
1047 | ||
1048 | if (chan_found) { | |
1049 | break; | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | /* Close channels element */ | |
1054 | ret = mi_lttng_writer_close_element(writer); | |
1055 | if (ret) { | |
1056 | goto error; | |
1057 | } | |
1058 | ||
1059 | error: | |
1060 | return ret; | |
1061 | } | |
1062 | ||
9f19cc17 DG |
1063 | /* |
1064 | * List channel(s) of session and domain. | |
f3ed775e | 1065 | * |
9f19cc17 | 1066 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 1067 | */ |
cd80958d | 1068 | static int list_channels(const char *channel_name) |
f3ed775e | 1069 | { |
9f19cc17 DG |
1070 | int count, i, ret = CMD_SUCCESS; |
1071 | unsigned int chan_found = 0; | |
1072 | struct lttng_channel *channels = NULL; | |
f3ed775e | 1073 | |
3e25cb20 | 1074 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 1075 | |
cd80958d | 1076 | count = lttng_list_channels(handle, &channels); |
f3ed775e | 1077 | if (count < 0) { |
c7d620a2 DG |
1078 | switch (-count) { |
1079 | case LTTNG_ERR_KERN_CHAN_NOT_FOUND: | |
fb14d0d8 JR |
1080 | if (lttng_opt_mi) { |
1081 | /* When printing mi this is not an error | |
1082 | * but an empty channels element */ | |
1083 | count = 0; | |
1084 | } else { | |
1085 | ret = CMD_SUCCESS; | |
1086 | WARN("No kernel channel"); | |
1087 | goto error_channels; | |
1088 | } | |
c7d620a2 DG |
1089 | break; |
1090 | default: | |
1091 | /* We had a real error */ | |
fb14d0d8 JR |
1092 | ret = CMD_ERROR; |
1093 | ERR("%s", lttng_strerror(count)); | |
1094 | goto error_channels; | |
60e835ca | 1095 | break; |
c7d620a2 | 1096 | } |
f3ed775e DG |
1097 | } |
1098 | ||
fb14d0d8 JR |
1099 | if (lttng_opt_mi) { |
1100 | /* Mi print */ | |
1101 | ret = mi_list_channels(channels, count, channel_name); | |
1102 | if (ret) { | |
1103 | ret = CMD_ERROR; | |
1104 | goto error; | |
1105 | } | |
1106 | } else { | |
1107 | /* Pretty print */ | |
1108 | if (channel_name == NULL) { | |
1109 | MSG("Channels:\n-------------"); | |
1110 | } | |
9f19cc17 | 1111 | |
fb14d0d8 JR |
1112 | for (i = 0; i < count; i++) { |
1113 | if (channel_name != NULL) { | |
1114 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1115 | chan_found = 1; | |
1116 | } else { | |
1117 | continue; | |
1118 | } | |
1119 | } | |
1120 | print_channel(&channels[i]); | |
1121 | ||
1122 | /* Listing events per channel */ | |
1123 | ret = list_events(channels[i].name); | |
1124 | if (ret) { | |
1125 | goto error; | |
1126 | } | |
1127 | ||
1128 | if (chan_found) { | |
1129 | break; | |
9f19cc17 DG |
1130 | } |
1131 | } | |
9f19cc17 | 1132 | |
fb14d0d8 JR |
1133 | if (!chan_found && channel_name != NULL) { |
1134 | ret = CMD_ERROR; | |
1135 | ERR("Channel %s not found", channel_name); | |
1136 | goto error; | |
9f19cc17 | 1137 | } |
fb14d0d8 JR |
1138 | } |
1139 | error: | |
1140 | free(channels); | |
9f19cc17 | 1141 | |
fb14d0d8 JR |
1142 | error_channels: |
1143 | return ret; | |
1144 | } | |
1145 | ||
1146 | /* | |
1147 | * Machine interface | |
1148 | * Find the session with session_name as name | |
1149 | * and print his informations. | |
1150 | */ | |
1151 | static int mi_list_session(const char *session_name, | |
1152 | struct lttng_session *sessions, int count) | |
1153 | { | |
1154 | int ret, i; | |
1155 | unsigned int session_found = 0; | |
1156 | ||
1157 | if (session_name == NULL) { | |
1158 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1159 | goto end; | |
1160 | } | |
1161 | ||
1162 | for (i = 0; i < count; i++) { | |
1163 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1164 | /* We need to leave it open to append other informations | |
1165 | * like domain, channel, events etc.*/ | |
1166 | session_found = 1; | |
1167 | ret = mi_lttng_session(writer, &sessions[i], 1); | |
1168 | if (ret) { | |
1169 | goto end; | |
1170 | } | |
9f19cc17 | 1171 | break; |
f3ed775e | 1172 | } |
f3ed775e DG |
1173 | } |
1174 | ||
fb14d0d8 JR |
1175 | if (!session_found) { |
1176 | ERR("Session '%s' not found", session_name); | |
1177 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1178 | goto end; | |
9f19cc17 | 1179 | } |
f3ed775e | 1180 | |
fb14d0d8 JR |
1181 | end: |
1182 | return ret; | |
1183 | } | |
f3ed775e | 1184 | |
fb14d0d8 JR |
1185 | /* |
1186 | * Machine interface | |
1187 | * List all availables session | |
1188 | */ | |
1189 | static int mi_list_sessions(struct lttng_session *sessions, int count) | |
1190 | { | |
1191 | int ret, i; | |
ae856491 | 1192 | |
fb14d0d8 JR |
1193 | /* Opening sessions element */ |
1194 | ret = mi_lttng_sessions_open(writer); | |
1195 | if (ret) { | |
1196 | goto end; | |
1197 | } | |
1198 | ||
1199 | /* Listing sessions */ | |
1200 | for (i = 0; i < count; i++) { | |
1201 | ret = mi_lttng_session(writer, &sessions[i], 0); | |
1202 | if (ret) { | |
1203 | goto end; | |
1204 | } | |
1205 | } | |
1206 | ||
1207 | /* Closing sessions element */ | |
1208 | ret = mi_lttng_writer_close_element(writer); | |
1209 | if (ret) { | |
1210 | goto end; | |
1211 | } | |
1212 | ||
1213 | end: | |
f3ed775e DG |
1214 | return ret; |
1215 | } | |
1216 | ||
1217 | /* | |
9f19cc17 | 1218 | * List available tracing session. List only basic information. |
f3ed775e | 1219 | * |
9f19cc17 | 1220 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 1221 | */ |
9f19cc17 | 1222 | static int list_sessions(const char *session_name) |
f3ed775e | 1223 | { |
fb14d0d8 JR |
1224 | int ret = CMD_SUCCESS; |
1225 | int count, i; | |
9f19cc17 DG |
1226 | unsigned int session_found = 0; |
1227 | struct lttng_session *sessions; | |
1228 | ||
1229 | count = lttng_list_sessions(&sessions); | |
1230 | DBG("Session count %d", count); | |
1231 | if (count < 0) { | |
fb14d0d8 JR |
1232 | ret = CMD_ERROR; |
1233 | ERR("%s", lttng_strerror(count)); | |
d32fb093 | 1234 | goto end; |
9f19cc17 DG |
1235 | } |
1236 | ||
fb14d0d8 JR |
1237 | if (lttng_opt_mi) { |
1238 | /* Mi */ | |
1239 | if (session_name == NULL) { | |
1240 | /* List all session */ | |
1241 | ret = mi_list_sessions(sessions, count); | |
1242 | } else { | |
1243 | /* Note : this return an open session element */ | |
1244 | ret = mi_list_session(session_name, sessions, count); | |
1245 | } | |
1246 | if (ret) { | |
1247 | ret = CMD_ERROR; | |
1248 | goto error; | |
1249 | } | |
1250 | } else { | |
1251 | /* Pretty print */ | |
1252 | if (count == 0) { | |
1253 | MSG("Currently no available tracing session"); | |
1254 | ret = CMD_ERROR; | |
1255 | goto end; | |
1256 | } | |
9f19cc17 | 1257 | |
fb14d0d8 JR |
1258 | if (session_name == NULL) { |
1259 | MSG("Available tracing sessions:"); | |
1260 | } | |
1261 | ||
1262 | ||
1263 | for (i = 0; i < count; i++) { | |
1264 | if (session_name != NULL) { | |
1265 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1266 | session_found = 1; | |
1267 | MSG("Tracing session %s: [%s%s]", session_name, | |
1268 | active_string(sessions[i].enabled), | |
1269 | snapshot_string(sessions[i].snapshot_mode)); | |
1270 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); | |
1271 | break; | |
1272 | } | |
1273 | } else { | |
1274 | MSG(" %d) %s (%s) [%s%s]", i + 1, | |
1275 | sessions[i].name, sessions[i].path, | |
2cbf8fed DG |
1276 | active_string(sessions[i].enabled), |
1277 | snapshot_string(sessions[i].snapshot_mode)); | |
2f785fe7 DG |
1278 | MSG("%sTrace path: %s", indent4, sessions[i].path); |
1279 | MSG("%sLive timer interval (usec): %u\n", indent4, | |
1280 | sessions[i].live_timer_interval); | |
9f19cc17 DG |
1281 | break; |
1282 | } | |
fb14d0d8 JR |
1283 | } |
1284 | ||
1285 | if (!session_found && session_name != NULL) { | |
1286 | ERR("Session '%s' not found", session_name); | |
1287 | ret = CMD_ERROR; | |
1288 | goto error; | |
1289 | } | |
1290 | ||
1291 | if (session_name == NULL) { | |
1292 | MSG("\nUse lttng list <session_name> for more details"); | |
9f19cc17 DG |
1293 | } |
1294 | } | |
1295 | ||
fb14d0d8 | 1296 | error: |
9f19cc17 | 1297 | free(sessions); |
fb14d0d8 JR |
1298 | end: |
1299 | return ret; | |
1300 | } | |
9f19cc17 | 1301 | |
fb14d0d8 JR |
1302 | |
1303 | /* | |
1304 | * Machine Interface | |
1305 | * list available domain(s) for a session. | |
1306 | */ | |
1307 | static int mi_list_domains(struct lttng_domain *domains, int count) | |
1308 | { | |
1309 | int i, ret; | |
1310 | /* Open domains element */ | |
1311 | ret = mi_lttng_domains_open(writer); | |
1312 | if (ret) { | |
1313 | goto end; | |
9f19cc17 DG |
1314 | } |
1315 | ||
fb14d0d8 JR |
1316 | for (i = 0; i < count; i++) { |
1317 | ret = mi_lttng_domain(writer, &domains[i] , 0); | |
1318 | if (ret) { | |
1319 | goto end; | |
1320 | } | |
9f19cc17 | 1321 | } |
f3ed775e | 1322 | |
fb14d0d8 JR |
1323 | /* Closing domains element */ |
1324 | ret = mi_lttng_writer_close_element(writer); | |
1325 | if (ret) { | |
1326 | goto end; | |
1327 | } | |
d32fb093 | 1328 | end: |
f3ed775e DG |
1329 | return ret; |
1330 | } | |
f3ed775e DG |
1331 | |
1332 | /* | |
9f19cc17 | 1333 | * List available domain(s) for a session. |
f3ed775e | 1334 | */ |
330be774 | 1335 | static int list_domains(const char *session_name) |
f3ed775e | 1336 | { |
9f19cc17 DG |
1337 | int i, count, ret = CMD_SUCCESS; |
1338 | struct lttng_domain *domains = NULL; | |
1339 | ||
9f19cc17 | 1340 | |
330be774 | 1341 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 | 1342 | if (count < 0) { |
fb14d0d8 JR |
1343 | ret = CMD_ERROR; |
1344 | ERR("%s", lttng_strerror(count)); | |
9f19cc17 DG |
1345 | goto end; |
1346 | } | |
1347 | ||
fb14d0d8 JR |
1348 | if (lttng_opt_mi) { |
1349 | /* Mi output */ | |
1350 | ret = mi_list_domains(domains, count); | |
1351 | if (ret) { | |
1352 | ret = CMD_ERROR; | |
1353 | goto error; | |
1354 | } | |
1355 | } else { | |
1356 | /* Pretty print */ | |
1357 | MSG("Domains:\n-------------"); | |
1358 | if (count == 0) { | |
1359 | MSG(" None"); | |
1360 | goto end; | |
1361 | } | |
1362 | ||
1363 | for (i = 0; i < count; i++) { | |
1364 | switch (domains[i].type) { | |
1365 | case LTTNG_DOMAIN_KERNEL: | |
1366 | MSG(" - Kernel"); | |
1367 | break; | |
1368 | case LTTNG_DOMAIN_UST: | |
1369 | MSG(" - UST global"); | |
1370 | break; | |
1371 | case LTTNG_DOMAIN_JUL: | |
1372 | MSG(" - JUL (Java Util Logging)"); | |
1373 | break; | |
5cdb6027 DG |
1374 | case LTTNG_DOMAIN_LOG4J: |
1375 | MSG(" - LOG4j (Logging for Java)"); | |
1376 | break; | |
fb14d0d8 JR |
1377 | default: |
1378 | break; | |
1379 | } | |
9f19cc17 DG |
1380 | } |
1381 | } | |
1382 | ||
fb14d0d8 | 1383 | error: |
9f19cc17 DG |
1384 | free(domains); |
1385 | ||
fb14d0d8 | 1386 | end: |
9f19cc17 | 1387 | return ret; |
f3ed775e | 1388 | } |
f3ed775e DG |
1389 | |
1390 | /* | |
9f19cc17 | 1391 | * The 'list <options>' first level command |
f3ed775e DG |
1392 | */ |
1393 | int cmd_list(int argc, const char **argv) | |
1394 | { | |
c617c0c6 | 1395 | int opt, ret = CMD_SUCCESS; |
9f19cc17 | 1396 | const char *session_name; |
f3ed775e | 1397 | static poptContext pc; |
9f19cc17 DG |
1398 | struct lttng_domain domain; |
1399 | struct lttng_domain *domains = NULL; | |
f3ed775e | 1400 | |
441c16a7 MD |
1401 | memset(&domain, 0, sizeof(domain)); |
1402 | ||
9f19cc17 | 1403 | if (argc < 1) { |
f3ed775e | 1404 | usage(stderr); |
ca1c3607 | 1405 | ret = CMD_ERROR; |
f3ed775e DG |
1406 | goto end; |
1407 | } | |
1408 | ||
1409 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1410 | poptReadDefaultConfig(pc, 0); | |
1411 | ||
1412 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1413 | switch (opt) { | |
1414 | case OPT_HELP: | |
ca1c3607 | 1415 | usage(stdout); |
f3ed775e | 1416 | goto end; |
eeac7d46 MD |
1417 | case OPT_USERSPACE: |
1418 | opt_userspace = 1; | |
eeac7d46 | 1419 | break; |
679b4943 SM |
1420 | case OPT_LIST_OPTIONS: |
1421 | list_cmd_options(stdout, long_options); | |
679b4943 | 1422 | goto end; |
f3ed775e DG |
1423 | default: |
1424 | usage(stderr); | |
1425 | ret = CMD_UNDEFINED; | |
1426 | goto end; | |
1427 | } | |
1428 | } | |
1429 | ||
fb14d0d8 JR |
1430 | /* Mi check */ |
1431 | if (lttng_opt_mi) { | |
1432 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1433 | if (!writer) { | |
1434 | ret = CMD_ERROR; | |
1435 | goto end; | |
1436 | } | |
1437 | ||
1438 | /* Open command element */ | |
1439 | ret = mi_lttng_writer_command_open(writer, | |
1440 | mi_lttng_element_command_list); | |
1441 | if (ret) { | |
1442 | ret = CMD_ERROR; | |
1443 | goto end; | |
1444 | } | |
1445 | ||
1446 | /* Open output element */ | |
1447 | ret = mi_lttng_writer_open_element(writer, | |
1448 | mi_lttng_element_command_output); | |
1449 | if (ret) { | |
1450 | ret = CMD_ERROR; | |
1451 | goto end; | |
1452 | } | |
1453 | } | |
1454 | ||
9f19cc17 DG |
1455 | /* Get session name (trailing argument) */ |
1456 | session_name = poptGetArg(pc); | |
b551a063 | 1457 | DBG2("Session name: %s", session_name); |
9f19cc17 | 1458 | |
cd80958d DG |
1459 | if (opt_kernel) { |
1460 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
1461 | } else if (opt_userspace) { |
1462 | DBG2("Listing userspace global domain"); | |
1463 | domain.type = LTTNG_DOMAIN_UST; | |
3c6a091f DG |
1464 | } else if (opt_jul) { |
1465 | DBG2("Listing JUL domain"); | |
1466 | domain.type = LTTNG_DOMAIN_JUL; | |
5cdb6027 DG |
1467 | } else if (opt_jul) { |
1468 | domain.type = LTTNG_DOMAIN_LOG4J; | |
cd80958d DG |
1469 | } |
1470 | ||
5cdb6027 | 1471 | if (opt_kernel || opt_userspace || opt_jul || opt_log4j) { |
aa5de748 MD |
1472 | handle = lttng_create_handle(session_name, &domain); |
1473 | if (handle == NULL) { | |
1474 | ret = CMD_FATAL; | |
1475 | goto end; | |
1476 | } | |
cd80958d DG |
1477 | } |
1478 | ||
9f19cc17 | 1479 | if (session_name == NULL) { |
5cdb6027 | 1480 | if (!opt_kernel && !opt_userspace && !opt_jul && !opt_log4j) { |
b551a063 | 1481 | ret = list_sessions(NULL); |
fb14d0d8 | 1482 | if (ret) { |
b551a063 DG |
1483 | goto end; |
1484 | } | |
1485 | } | |
9f19cc17 DG |
1486 | if (opt_kernel) { |
1487 | ret = list_kernel_events(); | |
fb14d0d8 | 1488 | if (ret) { |
9f19cc17 DG |
1489 | goto end; |
1490 | } | |
b551a063 DG |
1491 | } |
1492 | if (opt_userspace) { | |
f37d259d MD |
1493 | if (opt_fields) { |
1494 | ret = list_ust_event_fields(); | |
1495 | } else { | |
1496 | ret = list_ust_events(); | |
1497 | } | |
fb14d0d8 | 1498 | if (ret) { |
9f19cc17 DG |
1499 | goto end; |
1500 | } | |
1501 | } | |
5cdb6027 DG |
1502 | if (opt_jul || opt_log4j) { |
1503 | ret = list_agent_events(); | |
fb14d0d8 | 1504 | if (ret) { |
3c6a091f DG |
1505 | goto end; |
1506 | } | |
1507 | } | |
9f19cc17 DG |
1508 | } else { |
1509 | /* List session attributes */ | |
fb14d0d8 JR |
1510 | if (lttng_opt_mi) { |
1511 | /* Open element sessions | |
1512 | * Present for xml consistency */ | |
1513 | ret = mi_lttng_sessions_open(writer); | |
1514 | if (ret) { | |
1515 | goto end; | |
1516 | } | |
1517 | } | |
1518 | /* MI: the ouptut of list_sessions is an unclosed session element */ | |
9f19cc17 | 1519 | ret = list_sessions(session_name); |
fb14d0d8 | 1520 | if (ret) { |
9f19cc17 DG |
1521 | goto end; |
1522 | } | |
1523 | ||
1524 | /* Domain listing */ | |
1525 | if (opt_domain) { | |
330be774 | 1526 | ret = list_domains(session_name); |
9f19cc17 DG |
1527 | goto end; |
1528 | } | |
1529 | ||
fb14d0d8 | 1530 | /* Channel listing */ |
1c3de747 | 1531 | if (opt_kernel || opt_userspace) { |
fb14d0d8 JR |
1532 | if (lttng_opt_mi) { |
1533 | /* Add of domains and domain element for xml | |
1534 | * consistency and validation | |
1535 | */ | |
1536 | ret = mi_lttng_domains_open(writer); | |
1537 | if (ret) { | |
1538 | goto end; | |
1539 | } | |
1540 | ||
1541 | /* Open domain and leave it open for | |
1542 | * nested channels printing */ | |
1543 | ret = mi_lttng_domain(writer, &domain, 1); | |
1544 | if (ret) { | |
1545 | goto end; | |
1546 | } | |
1547 | ||
1548 | } | |
1549 | ||
cd80958d | 1550 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1551 | if (ret) { |
1552 | goto end; | |
1553 | } | |
1554 | ||
1555 | if (lttng_opt_mi) { | |
1556 | /* Close domain and domain element */ | |
1557 | ret = mi_lttng_close_multi_element(writer, 2); | |
1558 | } | |
1559 | if (ret) { | |
9f19cc17 DG |
1560 | goto end; |
1561 | } | |
fb14d0d8 JR |
1562 | |
1563 | ||
9f19cc17 | 1564 | } else { |
c617c0c6 MD |
1565 | int i, nb_domain; |
1566 | ||
9f19cc17 | 1567 | /* We want all domain(s) */ |
330be774 | 1568 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 1569 | if (nb_domain < 0) { |
fb14d0d8 JR |
1570 | ret = CMD_ERROR; |
1571 | ERR("%s", lttng_strerror(nb_domain)); | |
9f19cc17 DG |
1572 | goto end; |
1573 | } | |
1574 | ||
fb14d0d8 JR |
1575 | if (lttng_opt_mi) { |
1576 | ret = mi_lttng_domains_open(writer); | |
1577 | if (ret) { | |
1578 | ret = CMD_ERROR; | |
1579 | goto end; | |
1580 | } | |
1581 | } | |
1582 | ||
b551a063 | 1583 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
1584 | switch (domains[i].type) { |
1585 | case LTTNG_DOMAIN_KERNEL: | |
1586 | MSG("=== Domain: Kernel ===\n"); | |
1587 | break; | |
b551a063 DG |
1588 | case LTTNG_DOMAIN_UST: |
1589 | MSG("=== Domain: UST global ===\n"); | |
88c5f0d8 DG |
1590 | MSG("Buffer type: %s\n", |
1591 | domains[i].buf_type == | |
1592 | LTTNG_BUFFER_PER_PID ? "per PID" : "per UID"); | |
b551a063 | 1593 | break; |
3c6a091f DG |
1594 | case LTTNG_DOMAIN_JUL: |
1595 | MSG("=== Domain: JUL (Java Util Logging) ===\n"); | |
1596 | break; | |
5cdb6027 DG |
1597 | case LTTNG_DOMAIN_LOG4J: |
1598 | MSG("=== Domain: LOG4j (Logging for Java) ===\n"); | |
1599 | break; | |
9f19cc17 DG |
1600 | default: |
1601 | MSG("=== Domain: Unimplemented ===\n"); | |
1602 | break; | |
1603 | } | |
1604 | ||
fb14d0d8 JR |
1605 | if (lttng_opt_mi) { |
1606 | ret = mi_lttng_domain(writer, &domains[i], 1); | |
1607 | if (ret) { | |
1608 | ret = CMD_ERROR; | |
1609 | goto end; | |
1610 | } | |
1611 | } | |
1612 | ||
cd80958d | 1613 | /* Clean handle before creating a new one */ |
aa5de748 MD |
1614 | if (handle) { |
1615 | lttng_destroy_handle(handle); | |
1616 | } | |
cd80958d DG |
1617 | |
1618 | handle = lttng_create_handle(session_name, &domains[i]); | |
1619 | if (handle == NULL) { | |
ca1c3607 | 1620 | ret = CMD_FATAL; |
cd80958d DG |
1621 | goto end; |
1622 | } | |
1623 | ||
5cdb6027 DG |
1624 | if (domains[i].type == LTTNG_DOMAIN_JUL || |
1625 | domains[i].type == LTTNG_DOMAIN_LOG4J) { | |
1626 | ret = list_session_agent_events(); | |
fb14d0d8 | 1627 | if (ret) { |
3c6a091f DG |
1628 | goto end; |
1629 | } | |
1630 | continue; | |
1631 | } | |
1632 | ||
cd80958d | 1633 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1634 | if (ret) { |
1635 | goto end; | |
1636 | } | |
1637 | ||
1638 | if (lttng_opt_mi) { | |
1639 | /* Close domain element */ | |
1640 | ret = mi_lttng_writer_close_element(writer); | |
1641 | if (ret) { | |
1642 | ret = CMD_ERROR; | |
1643 | goto end; | |
1644 | } | |
1645 | } | |
1646 | ||
1647 | } | |
1648 | if (lttng_opt_mi) { | |
1649 | /* Close the domains, session and sessions element */ | |
1650 | ret = mi_lttng_close_multi_element(writer, 3); | |
1651 | if (ret) { | |
1652 | ret = CMD_ERROR; | |
9f19cc17 DG |
1653 | goto end; |
1654 | } | |
1655 | } | |
1656 | } | |
f3ed775e DG |
1657 | } |
1658 | ||
fb14d0d8 JR |
1659 | /* Mi closing */ |
1660 | if (lttng_opt_mi) { | |
1661 | /* Close output element */ | |
1662 | ret = mi_lttng_writer_close_element(writer); | |
1663 | if (ret) { | |
1664 | ret = CMD_ERROR; | |
1665 | goto end; | |
1666 | } | |
1667 | ||
1668 | /* Command element close */ | |
1669 | ret = mi_lttng_writer_command_close(writer); | |
1670 | if (ret) { | |
1671 | ret = CMD_ERROR; | |
1672 | goto end; | |
1673 | } | |
1674 | } | |
f3ed775e | 1675 | end: |
fb14d0d8 JR |
1676 | /* Mi clean-up */ |
1677 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1678 | /* Preserve original error code */ | |
1679 | ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL; | |
1680 | } | |
1681 | ||
0e428499 | 1682 | free(domains); |
aa5de748 MD |
1683 | if (handle) { |
1684 | lttng_destroy_handle(handle); | |
1685 | } | |
cd80958d | 1686 | |
ca1c3607 | 1687 | poptFreeContext(pc); |
f3ed775e DG |
1688 | return ret; |
1689 | } |