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Rename loglevel_str_to_value to loglevel_ust_str_to_value
[lttng-tools.git] / src / bin / lttng / commands / enable_events.c
CommitLineData
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
6c1c0768 18#define _LGPL_SOURCE
b2064f54 19#include <assert.h>
f3ed775e
DG		 20#include <popt.h>
21#include <stdio.h>
22#include <stdlib.h>
f3ed775e
DG		 23#include <sys/stat.h>
24#include <sys/types.h>
25#include <unistd.h>
5a0de755 26#include <inttypes.h>
8f0d098b 27#include <ctype.h>
f3ed775e 28
42224349 29#include <src/common/sessiond-comm/sessiond-comm.h>
f5436bfc 30#include <common/compat/string.h>
f3ed775e 31
89476427
JRJ		 32/* Mi dependancy */
33#include <common/mi-lttng.h>
34
35#include "../command.h"
36
8ab7c0d9
MD		 37#if (LTTNG_SYMBOL_NAME_LEN == 256)
38#define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255"
39#endif
40
f3ed775e
DG		 41static char *opt_event_list;
42static int opt_event_type;
c7dfbc0e 43static char *opt_loglevel;
0cda4f28 44static int opt_loglevel_type;
6181537c 45static int opt_kernel;
5440dc42 46static char *opt_session_name;
721b94fe 47static int opt_domain;
f3ed775e 48static int opt_enable_all;
cf0e5467 49static char *opt_probe;
8f0d098b 50static char *opt_function;
f3ed775e 51static char *opt_channel_name;
53a80697 52static char *opt_filter;
fac3366c 53static char *opt_exclude;
f3ed775e
DG		 54
55enum {
56 OPT_HELP = 1,
f3ed775e 57 OPT_TRACEPOINT,
cf0e5467 58 OPT_PROBE,
f3ed775e 59 OPT_FUNCTION,
a54bd42d 60 OPT_SYSCALL,
0cda4f28
MD		 61 OPT_LOGLEVEL,
62 OPT_LOGLEVEL_ONLY,
679b4943 63 OPT_LIST_OPTIONS,
53a80697 64 OPT_FILTER,
fac3366c 65 OPT_EXCLUDE,
f3ed775e
DG		 66};
67
cd80958d 68static struct lttng_handle *handle;
89476427 69static struct mi_writer *writer;
cd80958d 70
f3ed775e
DG		 71static struct poptOption long_options[] = {
72 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
e14f64a8 73 {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0},
f3ed775e 74 {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0},
721b94fe
JR		 75 {"kernel", 'k', POPT_ARG_VAL, &opt_domain, LTTNG_DOMAIN_KERNEL, 0, 0},
76 {"userspace", 'u', POPT_ARG_VAL, &opt_domain, LTTNG_DOMAIN_UST, 0, 0},
77 {"jul", 'j', POPT_ARG_VAL, &opt_domain, LTTNG_DOMAIN_JUL, 0, 0},
78 {"log4j", 'l', POPT_ARG_VAL, &opt_domain, LTTNG_DOMAIN_LOG4J, 0, 0},
79 {"python", 'p', POPT_ARG_VAL, &opt_domain, LTTNG_DOMAIN_PYTHON, 0, 0},
f3ed775e 80 {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0},
7ebae521 81 {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0},
40e9d5d3 82 {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0},
7ebae521 83 {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0},
0cda4f28
MD		 84 {"loglevel", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL, 0, 0},
85 {"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0},
53a80697 86 {"filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0},
fac3366c 87 {"exclude", 'x', POPT_ARG_STRING, &opt_exclude, OPT_EXCLUDE, 0, 0},
721b94fe 88 {"session", 's', POPT_ARG_NONE, 0, 0, 0, 0},
f3ed775e
DG		 89 {0, 0, 0, 0, 0, 0, 0}
90};
91
721b94fe
JR		 92static struct poptOption global_long_options[] = {
93 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
94 {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
95 {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0},
96 {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
97 {0, 0, 0, 0, 0, 0, 0}
98};
0d63dd19 99/*
6181537c 100 * Parse probe options.
0d63dd19 101 */
cf0e5467 102static int parse_probe_opts(struct lttng_event *ev, char *opt)
0d63dd19 103{
49d4e302
JRJ		 104 int ret = CMD_SUCCESS;
105 int match;
8ff0bbd0 106 char s_hex[19];
8ab7c0d9 107#define S_HEX_LEN_SCANF_IS_A_BROKEN_API "18" /* 18 is (19 - 1) (\0 is extra) */
0d63dd19
DG		 108 char name[LTTNG_SYMBOL_NAME_LEN];
109
110 if (opt == NULL) {
49d4e302 111 ret = CMD_ERROR;
8f0d098b 112 goto end;
0d63dd19
DG		 113 }
114
115 /* Check for symbol+offset */
49d4e302 116 match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API
8ab7c0d9 117 "[^'+']+%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", name, s_hex);
49d4e302 118 if (match == 2) {
7d29a247 119 strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN);
99497cd0 120 ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
cf0e5467 121 DBG("probe symbol %s", ev->attr.probe.symbol_name);
9d035200 122 if (*s_hex == '\0') {
8ff0bbd0 123 ERR("Invalid probe offset %s", s_hex);
49d4e302 124 ret = CMD_ERROR;
8f0d098b 125 goto end;
0d63dd19 126 }
8ff0bbd0 127 ev->attr.probe.offset = strtoul(s_hex, NULL, 0);
cf0e5467 128 DBG("probe offset %" PRIu64, ev->attr.probe.offset);
3000dc78 129 ev->attr.probe.addr = 0;
8f0d098b
MD		 130 goto end;
131 }
132
133 /* Check for symbol */
134 if (isalpha(name[0])) {
49d4e302 135 match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s",
8ab7c0d9 136 name);
49d4e302 137 if (match == 1) {
8f0d098b 138 strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN);
99497cd0 139 ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
8f0d098b
MD		 140 DBG("probe symbol %s", ev->attr.probe.symbol_name);
141 ev->attr.probe.offset = 0;
142 DBG("probe offset %" PRIu64, ev->attr.probe.offset);
143 ev->attr.probe.addr = 0;
144 goto end;
145 }
0d63dd19
DG		 146 }
147
148 /* Check for address */
49d4e302
JRJ		 149 match = sscanf(opt, "%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", s_hex);
150 if (match > 0) {
9d035200 151 if (*s_hex == '\0') {
8ff0bbd0 152 ERR("Invalid probe address %s", s_hex);
49d4e302 153 ret = CMD_ERROR;
8f0d098b 154 goto end;
0d63dd19 155 }
8ff0bbd0 156 ev->attr.probe.addr = strtoul(s_hex, NULL, 0);
cf0e5467 157 DBG("probe addr %" PRIu64, ev->attr.probe.addr);
3000dc78
DG		 158 ev->attr.probe.offset = 0;
159 memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN);
8f0d098b 160 goto end;
0d63dd19
DG		 161 }
162
163 /* No match */
49d4e302 164 ret = CMD_ERROR;
0d63dd19 165
8f0d098b 166end:
0d63dd19
DG		 167 return ret;
168}
169
5cdb6027
DG		 170/*
171 * Maps LOG4j loglevel from string to value
172 */
173static int loglevel_log4j_str_to_value(const char *inputstr)
174{
175 int i = 0;
176 char str[LTTNG_SYMBOL_NAME_LEN];
177
3712b110
JG		 178 if (!inputstr || strlen(inputstr) == 0) {
179 return -1;
180 }
181
5cdb6027
DG		 182 /*
183 * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is
184 * added at the end of the loop so a the upper bound we avoid the overflow.
185 */
186 while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') {
187 str[i] = toupper(inputstr[i]);
188 i++;
189 }
190 str[i] = '\0';
191
192 if (!strcmp(str, "LOG4J_OFF") || !strcmp(str, "OFF")) {
193 return LTTNG_LOGLEVEL_LOG4J_OFF;
194 } else if (!strcmp(str, "LOG4J_FATAL") || !strcmp(str, "FATAL")) {
195 return LTTNG_LOGLEVEL_LOG4J_FATAL;
196 } else if (!strcmp(str, "LOG4J_ERROR") || !strcmp(str, "ERROR")) {
197 return LTTNG_LOGLEVEL_LOG4J_ERROR;
198 } else if (!strcmp(str, "LOG4J_WARN") || !strcmp(str, "WARN")) {
199 return LTTNG_LOGLEVEL_LOG4J_WARN;
200 } else if (!strcmp(str, "LOG4J_INFO") || !strcmp(str, "INFO")) {
201 return LTTNG_LOGLEVEL_LOG4J_INFO;
202 } else if (!strcmp(str, "LOG4J_DEBUG") || !strcmp(str, "DEBUG")) {
203 return LTTNG_LOGLEVEL_LOG4J_DEBUG;
204 } else if (!strcmp(str, "LOG4J_TRACE") || !strcmp(str, "TRACE")) {
205 return LTTNG_LOGLEVEL_LOG4J_TRACE;
206 } else if (!strcmp(str, "LOG4J_ALL") || !strcmp(str, "ALL")) {
207 return LTTNG_LOGLEVEL_LOG4J_ALL;
208 } else {
209 return -1;
210 }
211}
212
b2064f54
DG		 213/*
214 * Maps JUL loglevel from string to value
215 */
216static int loglevel_jul_str_to_value(const char *inputstr)
217{
218 int i = 0;
219 char str[LTTNG_SYMBOL_NAME_LEN];
220
3712b110
JG		 221 if (!inputstr || strlen(inputstr) == 0) {
222 return -1;
223 }
224
b2064f54
DG		 225 /*
226 * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is
227 * added at the end of the loop so a the upper bound we avoid the overflow.
228 */
229 while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') {
230 str[i] = toupper(inputstr[i]);
231 i++;
232 }
233 str[i] = '\0';
234
235 if (!strcmp(str, "JUL_OFF") || !strcmp(str, "OFF")) {
236 return LTTNG_LOGLEVEL_JUL_OFF;
237 } else if (!strcmp(str, "JUL_SEVERE") || !strcmp(str, "SEVERE")) {
238 return LTTNG_LOGLEVEL_JUL_SEVERE;
239 } else if (!strcmp(str, "JUL_WARNING") || !strcmp(str, "WARNING")) {
240 return LTTNG_LOGLEVEL_JUL_WARNING;
241 } else if (!strcmp(str, "JUL_INFO") || !strcmp(str, "INFO")) {
242 return LTTNG_LOGLEVEL_JUL_INFO;
243 } else if (!strcmp(str, "JUL_CONFIG") || !strcmp(str, "CONFIG")) {
244 return LTTNG_LOGLEVEL_JUL_CONFIG;
245 } else if (!strcmp(str, "JUL_FINE") || !strcmp(str, "FINE")) {
246 return LTTNG_LOGLEVEL_JUL_FINE;
247 } else if (!strcmp(str, "JUL_FINER") || !strcmp(str, "FINER")) {
248 return LTTNG_LOGLEVEL_JUL_FINER;
249 } else if (!strcmp(str, "JUL_FINEST") || !strcmp(str, "FINEST")) {
250 return LTTNG_LOGLEVEL_JUL_FINEST;
251 } else if (!strcmp(str, "JUL_ALL") || !strcmp(str, "ALL")) {
252 return LTTNG_LOGLEVEL_JUL_ALL;
253 } else {
254 return -1;
255 }
256}
257
0e115563
DG		 258/*
259 * Maps Python loglevel from string to value
260 */
261static int loglevel_python_str_to_value(const char *inputstr)
262{
263 int i = 0;
264 char str[LTTNG_SYMBOL_NAME_LEN];
265
3712b110
JG		 266 if (!inputstr || strlen(inputstr) == 0) {
267 return -1;
268 }
269
0e115563
DG		 270 /*
271 * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is
272 * added at the end of the loop so a the upper bound we avoid the overflow.
273 */
274 while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') {
275 str[i] = toupper(inputstr[i]);
276 i++;
277 }
278 str[i] = '\0';
279
280 if (!strcmp(str, "PYTHON_CRITICAL") || !strcmp(str, "CRITICAL")) {
281 return LTTNG_LOGLEVEL_PYTHON_CRITICAL;
282 } else if (!strcmp(str, "PYTHON_ERROR") || !strcmp(str, "ERROR")) {
283 return LTTNG_LOGLEVEL_PYTHON_ERROR;
284 } else if (!strcmp(str, "PYTHON_WARNING") || !strcmp(str, "WARNING")) {
285 return LTTNG_LOGLEVEL_PYTHON_WARNING;
286 } else if (!strcmp(str, "PYTHON_INFO") || !strcmp(str, "INFO")) {
287 return LTTNG_LOGLEVEL_PYTHON_INFO;
288 } else if (!strcmp(str, "PYTNON_DEBUG") || !strcmp(str, "DEBUG")) {
289 return LTTNG_LOGLEVEL_PYTHON_DEBUG;
290 } else if (!strcmp(str, "PYTHON_NOTSET") || !strcmp(str, "NOTSET")) {
291 return LTTNG_LOGLEVEL_PYTHON_NOTSET;
292 } else {
293 return -1;
294 }
295}
296
8005f29a 297/*
0c8477c8 298 * Maps loglevel from string to value
8005f29a
MD		 299 */
300static
1036985c 301int loglevel_ust_str_to_value(const char *inputstr)
8005f29a 302{
46839cc2
MD		 303 int i = 0;
304 char str[LTTNG_SYMBOL_NAME_LEN];
305
3712b110
JG		 306 if (!inputstr || strlen(inputstr) == 0) {
307 return -1;
308 }
309
e051e07c
DG		 310 /*
311 * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is
312 * added at the end of the loop so a the upper bound we avoid the overflow.
313 */
314 while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') {
46839cc2
MD		 315 str[i] = toupper(inputstr[i]);
316 i++;
317 }
318 str[i] = '\0';
319 if (!strcmp(str, "TRACE_EMERG") || !strcmp(str, "EMERG")) {
320 return LTTNG_LOGLEVEL_EMERG;
321 } else if (!strcmp(str, "TRACE_ALERT") || !strcmp(str, "ALERT")) {
322 return LTTNG_LOGLEVEL_ALERT;
323 } else if (!strcmp(str, "TRACE_CRIT") || !strcmp(str, "CRIT")) {
324 return LTTNG_LOGLEVEL_CRIT;
325 } else if (!strcmp(str, "TRACE_ERR") || !strcmp(str, "ERR")) {
326 return LTTNG_LOGLEVEL_ERR;
327 } else if (!strcmp(str, "TRACE_WARNING") || !strcmp(str, "WARNING")) {
328 return LTTNG_LOGLEVEL_WARNING;
329 } else if (!strcmp(str, "TRACE_NOTICE") || !strcmp(str, "NOTICE")) {
330 return LTTNG_LOGLEVEL_NOTICE;
331 } else if (!strcmp(str, "TRACE_INFO") || !strcmp(str, "INFO")) {
332 return LTTNG_LOGLEVEL_INFO;
333 } else if (!strcmp(str, "TRACE_DEBUG_SYSTEM") || !strcmp(str, "DEBUG_SYSTEM") || !strcmp(str, "SYSTEM")) {
334 return LTTNG_LOGLEVEL_DEBUG_SYSTEM;
335 } else if (!strcmp(str, "TRACE_DEBUG_PROGRAM") || !strcmp(str, "DEBUG_PROGRAM") || !strcmp(str, "PROGRAM")) {
336 return LTTNG_LOGLEVEL_DEBUG_PROGRAM;
337 } else if (!strcmp(str, "TRACE_DEBUG_PROCESS") || !strcmp(str, "DEBUG_PROCESS") || !strcmp(str, "PROCESS")) {
338 return LTTNG_LOGLEVEL_DEBUG_PROCESS;
339 } else if (!strcmp(str, "TRACE_DEBUG_MODULE") || !strcmp(str, "DEBUG_MODULE") || !strcmp(str, "MODULE")) {
340 return LTTNG_LOGLEVEL_DEBUG_MODULE;
341 } else if (!strcmp(str, "TRACE_DEBUG_UNIT") || !strcmp(str, "DEBUG_UNIT") || !strcmp(str, "UNIT")) {
342 return LTTNG_LOGLEVEL_DEBUG_UNIT;
343 } else if (!strcmp(str, "TRACE_DEBUG_FUNCTION") || !strcmp(str, "DEBUG_FUNCTION") || !strcmp(str, "FUNCTION")) {
344 return LTTNG_LOGLEVEL_DEBUG_FUNCTION;
345 } else if (!strcmp(str, "TRACE_DEBUG_LINE") || !strcmp(str, "DEBUG_LINE") || !strcmp(str, "LINE")) {
346 return LTTNG_LOGLEVEL_DEBUG_LINE;
347 } else if (!strcmp(str, "TRACE_DEBUG") || !strcmp(str, "DEBUG")) {
348 return LTTNG_LOGLEVEL_DEBUG;
8005f29a
MD		 349 } else {
350 return -1;
351 }
352}
353
1036985c
JR		 354/*
355 * Map a userspace agent loglevel to it's value based on the domain type.
356 *
357 * Assert when loglevel is NULL and domain type is LTTNG_DOMAIN_NONE ||
358 * LTTNG_DOMAIN_KERNEL.
359 *
360 * return -1 on invalid loglevel.
361 */
362static int loglevel_str_to_value(const char* loglevel, enum lttng_domain_type type)
363{
364 int ret = -1;
365 switch (type) {
366 case LTTNG_DOMAIN_UST:
367 ret = loglevel_ust_str_to_value(loglevel);
368 break;
369 case LTTNG_DOMAIN_JUL:
370 ret = loglevel_jul_str_to_value(loglevel);
371 break;
372 case LTTNG_DOMAIN_LOG4J:
373 ret = loglevel_log4j_str_to_value(loglevel);
374 break;
375 case LTTNG_DOMAIN_PYTHON:
376 ret = loglevel_python_str_to_value(loglevel);
377 break;
378 default:
379 assert(0);
380 }
381
382 return ret;
383}
384
85076754
MD		 385static
386const char *print_channel_name(const char *name)
387{
388 return name ? : DEFAULT_CHANNEL_NAME;
389}
390
391static
392const char *print_raw_channel_name(const char *name)
393{
394 return name ? : "<default>";
395}
396
89476427
JRJ		 397/*
398 * Mi print exlcusion list
399 */
400static
401int mi_print_exclusion(int count, char **names)
402{
403 int i, ret;
404
405 assert(writer);
406
407 if (count == 0) {
408 ret = 0;
409 goto end;
410 }
411 ret = mi_lttng_writer_open_element(writer, config_element_exclusions);
412 if (ret) {
413 goto end;
414 }
415
416 for (i = 0; i < count; i++) {
417 ret = mi_lttng_writer_write_element_string(writer,
418 config_element_exclusion, names[i]);
419 if (ret) {
420 goto end;
421 }
422 }
423
424 /* Close exclusions element */
425 ret = mi_lttng_writer_close_element(writer);
426
427end:
428 return ret;
429}
430
9c48cab3
JI		 431/*
432 * Return allocated string for pretty-printing exclusion names.
433 */
434static
435char *print_exclusions(int count, char **names)
436{
437 int length = 0;
438 int i;
439 const char *preamble = " excluding ";
440 char *ret;
441
442 if (count == 0) {
443 return strdup("");
444 }
445
446 /* calculate total required length */
447 for (i = 0; i < count; i++) {
448 length += strlen(names[i]) + 1;
449 }
450
451 /* add length of preamble + one for NUL - one for last (missing) comma */
452 length += strlen(preamble);
fd591b18
MD		 453 ret = zmalloc(length);
454 if (!ret) {
455 return NULL;
456 }
9c48cab3
JI		 457 strncpy(ret, preamble, length);
458 for (i = 0; i < count; i++) {
459 strcat(ret, names[i]);
460 if (i != count - 1) {
461 strcat(ret, ",");
462 }
463 }
89476427 464
9c48cab3
JI		 465 return ret;
466}
467
748bde76
JI		 468/*
469 * Compare list of exclusions against an event name.
470 * Return a list of legal exclusion names.
471 * Produce an error or a warning about others (depending on the situation)
472 */
473static
474int check_exclusion_subsets(const char *event_name,
475 const char *exclusions,
476 int *exclusion_count_ptr,
477 char ***exclusion_list_ptr)
478{
479 const char *excluder_ptr;
480 const char *event_ptr;
481 const char *next_excluder;
482 int excluder_length;
483 int exclusion_count = 0;
484 char **exclusion_list = NULL;
485 int ret = CMD_SUCCESS;
486
487 if (event_name[strlen(event_name) - 1] != '*') {
488 ERR("Event %s: Excluders can only be used with wildcarded events", event_name);
489 goto error;
490 }
491
492 next_excluder = exclusions;
493 while (*next_excluder != 0) {
494 event_ptr = event_name;
495 excluder_ptr = next_excluder;
496 excluder_length = strcspn(next_excluder, ",");
497
498 /* Scan both the excluder and the event letter by letter */
499 while (1) {
500 char e, x;
501
502 e = *event_ptr;
503 x = *excluder_ptr;
504
505 if (x == '*') {
506 /* Event is a subset of the excluder */
507 ERR("Event %s: %.*s excludes all events from %s",
508 event_name,
509 excluder_length,
510 next_excluder,
511 event_name);
512 goto error;
513 }
514 if (e == '*') {
5ef79758
MD		 515 char *string;
516 char **new_exclusion_list;
517
748bde76 518 /* Excluder is a proper subset of event */
f5436bfc 519 string = lttng_strndup(next_excluder, excluder_length);
5ef79758 520 if (!string) {
f5436bfc 521 PERROR("lttng_strndup error");
5ef79758
MD		 522 goto error;
523 }
524 new_exclusion_list = realloc(exclusion_list,
1940b29e 525 sizeof(char *) * (exclusion_count + 1));
5ef79758
MD		 526 if (!new_exclusion_list) {
527 PERROR("realloc");
528 free(string);
529 goto error;
530 }
531 exclusion_list = new_exclusion_list;
748bde76 532 exclusion_count++;
5ef79758 533 exclusion_list[exclusion_count - 1] = string;
748bde76
JI		 534 break;
535 }
536 if (x != e) {
537 /* Excluder and event sets have no common elements */
538 WARN("Event %s: %.*s does not exclude any events from %s",
539 event_name,
540 excluder_length,
541 next_excluder,
542 event_name);
543 break;
544 }
545 excluder_ptr++;
546 event_ptr++;
547 }
548 /* next excluder */
549 next_excluder += excluder_length;
550 if (*next_excluder == ',') {
551 next_excluder++;
552 }
553 }
554 goto end;
555error:
556 while (exclusion_count--) {
557 free(exclusion_list[exclusion_count]);
558 }
559 if (exclusion_list != NULL) {
560 free(exclusion_list);
561 }
562 exclusion_list = NULL;
563 exclusion_count = 0;
564 ret = CMD_ERROR;
565end:
566 *exclusion_count_ptr = exclusion_count;
567 *exclusion_list_ptr = exclusion_list;
568 return ret;
569}
502bbe89
PP		 570
571static void warn_on_truncated_exclusion_names(char **exclusion_list,
572 int exclusion_count, int *warn)
573{
574 size_t i = 0;
575
576 for (i = 0; i < exclusion_count; ++i) {
577 const char *name = exclusion_list[i];
578 size_t len = strlen(name);
579
580 if (len >= LTTNG_SYMBOL_NAME_LEN) {
581 WARN("Event exclusion \"%s\" will be truncated",
582 name);
583 *warn = 1;
584 }
585 }
586}
587
c7dfbc0e
JR		 588struct domain_configuration {
589 int enable_all;
590 int event_type;
591 char *event_list;
592 char *loglevel;
593 int loglevel_type;
594 enum lttng_domain_type domain_type;
595 char *probe;
596 char *function;
597 char *channel_name;
598 char *filter;
599 char *exclude;
600};
601
f3ed775e 602/*
6181537c 603 * Enabling event using the lttng API.
89476427 604 * Note: in case of error only the last error code will be return.
f3ed775e 605 */
c7dfbc0e 606static int enable_events(char *session_name, struct domain_configuration *config)
f3ed775e 607{
89476427
JRJ		 608 int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS;
609 int error_holder = CMD_SUCCESS, warn = 0, error = 0, success = 1;
b73d0b29 610 char *event_name, *channel_name = NULL;
f3ed775e 611 struct lttng_event ev;
7d29a247 612 struct lttng_domain dom;
7ed70bc9
JI		 613 int exclusion_count = 0;
614 char **exclusion_list = NULL;
f3ed775e 615
c7dfbc0e
JR		 616 int config_enable_all;
617 int config_event_type;
618 char *config_event_list;
619 char *config_loglevel;
620 int config_loglevel_type;
621 enum lttng_domain_type config_domain_type;
622 char *config_probe;
623 char *config_function;
624 char *config_channel_name;
625 char *config_filter;
626 char *config_exclude;
627
628 assert(config);
629
441c16a7
MD		 630 memset(&ev, 0, sizeof(ev));
631 memset(&dom, 0, sizeof(dom));
632
c7dfbc0e
JR		 633 config_enable_all = config->enable_all;
634 config_event_type = config->event_type;
635 config_event_list = config->event_list;
636 config_loglevel = config->loglevel;
637 config_loglevel_type = config->loglevel_type;
638 config_domain_type = config->domain_type;
639 config_probe = config->probe;
640 config_function = config->function;
641 config_channel_name = config->channel_name;
642 config_filter = config->filter;
643 config_exclude = config->exclude;
644
645 if (config_domain_type == LTTNG_DOMAIN_KERNEL) {
646 if (config_loglevel) {
67b58630
JG		 647 WARN("Kernel loglevels are not supported.");
648 }
53a80697
MD		 649 }
650
7d29a247 651 /* Create lttng domain */
c7dfbc0e
JR		 652 dom.type = config_domain_type;
653 switch (config_domain_type) {
654 case LTTNG_DOMAIN_KERNEL:
7972aab2 655 dom.buf_type = LTTNG_BUFFER_GLOBAL;
c7dfbc0e
JR		 656 break;
657 case LTTNG_DOMAIN_UST:
658 case LTTNG_DOMAIN_JUL:
659 case LTTNG_DOMAIN_LOG4J:
660 case LTTNG_DOMAIN_PYTHON:
0e115563 661 dom.buf_type = LTTNG_BUFFER_PER_UID;
c7dfbc0e
JR		 662 break;
663 case LTTNG_DOMAIN_NONE:
664 default:
3ecec76a 665 assert(0);
2bdd86d4 666 }
7d29a247 667
c7dfbc0e
JR		 668
669 if (config_exclude) {
8b08c525
AB		 670 switch (dom.type) {
671 case LTTNG_DOMAIN_KERNEL:
672 case LTTNG_DOMAIN_JUL:
673 case LTTNG_DOMAIN_LOG4J:
674 case LTTNG_DOMAIN_PYTHON:
675 ERR("Event name exclusions are not yet implemented for %s events",
676 get_domain_str(dom.type));
677 ret = CMD_ERROR;
678 goto error;
679 case LTTNG_DOMAIN_UST:
680 /* Exclusions supported */
681 break;
682 default:
683 assert(0);
684 }
d5dd17fd
JI		 685 }
686
c7dfbc0e 687 channel_name = config_channel_name;
ae856491 688
cd80958d
DG		 689 handle = lttng_create_handle(session_name, &dom);
690 if (handle == NULL) {
691 ret = -1;
692 goto error;
693 }
1aef21b6 694
89476427
JRJ		 695 /* Prepare Mi */
696 if (lttng_opt_mi) {
c7dfbc0e
JR		 697 /* Open a domain element */
698 ret = mi_lttng_writer_open_element(writer, config_element_domain);
699 if (ret) {
700 ret = CMD_ERROR;
701 goto error;
702 }
703
704 /* Specify the domain type */
705 ret = mi_lttng_writer_write_element_string(writer,
706 config_element_type,
707 mi_lttng_domaintype_string(config_domain_type));
708 if (ret) {
709 ret = CMD_ERROR;
710 goto error;
711 }
712
89476427
JRJ		 713 /* Open a events element */
714 ret = mi_lttng_writer_open_element(writer, config_element_events);
715 if (ret) {
716 ret = CMD_ERROR;
717 goto error;
718 }
719 }
720
c7dfbc0e 721 if (config_enable_all) {
8c9ae521 722 /* Default setup for enable all */
c7dfbc0e
JR		 723 if (config_domain_type == LTTNG_DOMAIN_KERNEL) {
724 ev.type = config_event_type;
29c62722 725 strcpy(ev.name, "*");
300b8fd5
MD		 726 /* kernel loglevels not implemented */
727 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
75e8c5ab
MD		 728 } else {
729 ev.type = LTTNG_EVENT_TRACEPOINT;
730 strcpy(ev.name, "*");
c7dfbc0e
JR		 731 ev.loglevel_type = config_loglevel_type;
732 if (config_loglevel) {
1036985c 733 ev.loglevel = loglevel_str_to_value(config_loglevel, config_domain_type);
300b8fd5 734 if (ev.loglevel == -1) {
c7dfbc0e 735 ERR("Unknown loglevel %s", config_loglevel);
2f70b271 736 ret = -LTTNG_ERR_INVALID;
300b8fd5
MD		 737 goto error;
738 }
22e25b71 739 } else {
c7dfbc0e
JR		 740 assert(config_domain_type != LTTNG_DOMAIN_NONE || config_domain_type != LTTNG_DOMAIN_KERNEL);
741 switch (config_domain_type) {
742 case LTTNG_DOMAIN_UST:
b2064f54 743 ev.loglevel = -1;
c7dfbc0e
JR		 744 break;
745 case LTTNG_DOMAIN_JUL:
b2064f54 746 ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL;
c7dfbc0e
JR		 747 break;
748 case LTTNG_DOMAIN_LOG4J:
34aa3685 749 ev.loglevel = LTTNG_LOGLEVEL_LOG4J_ALL;
c7dfbc0e
JR		 750 break;
751 case LTTNG_DOMAIN_PYTHON:
0e115563 752 ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG;
c7dfbc0e
JR		 753 break;
754 default:
755 assert(0);
b2064f54 756 }
300b8fd5 757 }
75e8c5ab 758 }
8c9ae521 759
c7dfbc0e
JR		 760 if (config_exclude) {
761 ret = check_exclusion_subsets("*", config_exclude,
7ed70bc9
JI		 762 &exclusion_count, &exclusion_list);
763 if (ret == CMD_ERROR) {
764 goto error;
765 }
89476427 766 ev.exclusion = 1;
502bbe89
PP		 767
768 warn_on_truncated_exclusion_names(exclusion_list,
769 exclusion_count, &warn);
7ed70bc9 770 }
c7dfbc0e 771 if (!config_filter) {
7ed70bc9
JI		 772 ret = lttng_enable_event_with_exclusions(handle,
773 &ev, channel_name,
774 NULL,
775 exclusion_count, exclusion_list);
025faf73
DG		 776 if (ret < 0) {
777 switch (-ret) {
778 case LTTNG_ERR_KERN_EVENT_EXIST:
779 WARN("Kernel events already enabled (channel %s, session %s)",
85076754 780 print_channel_name(channel_name), session_name);
89476427 781 warn = 1;
025faf73 782 break;
45d5d421
CB		 783 case LTTNG_ERR_TRACE_ALREADY_STARTED:
784 {
785 const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once.";
721b94fe 786 ERR("Events: %s (domain %s, channel %s, session %s)",
45d5d421 787 msg,
721b94fe 788 get_domain_str(dom.type),
45d5d421
CB		 789 print_channel_name(channel_name),
790 session_name);
791 error = 1;
792 break;
793 }
025faf73 794 default:
721b94fe 795 ERR("Events: %s (domain %s, channel %s, session %s)",
85076754 796 lttng_strerror(ret),
721b94fe 797 get_domain_str(dom.type),
85076754
MD		 798 ret == -LTTNG_ERR_NEED_CHANNEL_NAME
799 ? print_raw_channel_name(channel_name)
800 : print_channel_name(channel_name),
801 session_name);
89476427 802 error = 1;
025faf73
DG		 803 break;
804 }
805 goto end;
42224349 806 }
8c9ae521 807
c7dfbc0e 808 switch (config_event_type) {
025faf73 809 case LTTNG_EVENT_TRACEPOINT:
c7dfbc0e 810 if (config_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) {
9c48cab3 811 char *exclusion_string = print_exclusions(exclusion_count, exclusion_list);
5ef79758
MD		 812
813 if (!exclusion_string) {
814 PERROR("Cannot allocate exclusion_string");
815 error = 1;
816 goto end;
817 }
9c48cab3 818 MSG("All %s tracepoints%s are enabled in channel %s for loglevel %s",
b9dfb167 819 get_domain_str(dom.type),
9c48cab3 820 exclusion_string,
85076754 821 print_channel_name(channel_name),
c7dfbc0e 822 config_loglevel);
9c48cab3 823 free(exclusion_string);
025faf73 824 } else {
9c48cab3 825 char *exclusion_string = print_exclusions(exclusion_count, exclusion_list);
5ef79758
MD		 826
827 if (!exclusion_string) {
828 PERROR("Cannot allocate exclusion_string");
829 error = 1;
830 goto end;
831 }
9c48cab3 832 MSG("All %s tracepoints%s are enabled in channel %s",
b9dfb167 833 get_domain_str(dom.type),
9c48cab3 834 exclusion_string,
85076754 835 print_channel_name(channel_name));
9c48cab3 836 free(exclusion_string);
025faf73
DG		 837 }
838 break;
839 case LTTNG_EVENT_SYSCALL:
840 if (opt_kernel) {
6e911cad
MD		 841 MSG("All %s system calls are enabled in channel %s",
842 get_domain_str(dom.type),
85076754 843 print_channel_name(channel_name));
025faf73
DG		 844 }
845 break;
846 case LTTNG_EVENT_ALL:
c7dfbc0e 847 if (config_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) {
9c48cab3 848 char *exclusion_string = print_exclusions(exclusion_count, exclusion_list);
5ef79758
MD		 849
850 if (!exclusion_string) {
851 PERROR("Cannot allocate exclusion_string");
852 error = 1;
853 goto end;
854 }
9c48cab3 855 MSG("All %s events%s are enabled in channel %s for loglevel %s",
b9dfb167 856 get_domain_str(dom.type),
9c48cab3 857 exclusion_string,
85076754 858 print_channel_name(channel_name),
c7dfbc0e 859 config_loglevel);
9c48cab3 860 free(exclusion_string);
025faf73 861 } else {
9c48cab3 862 char *exclusion_string = print_exclusions(exclusion_count, exclusion_list);
5ef79758
MD		 863
864 if (!exclusion_string) {
865 PERROR("Cannot allocate exclusion_string");
866 error = 1;
867 goto end;
868 }
9c48cab3 869 MSG("All %s events%s are enabled in channel %s",
b9dfb167 870 get_domain_str(dom.type),
9c48cab3 871 exclusion_string,
85076754 872 print_channel_name(channel_name));
9c48cab3 873 free(exclusion_string);
025faf73
DG		 874 }
875 break;
876 default:
877 /*
878 * We should not be here since lttng_enable_event should have
879 * failed on the event type.
880 */
881 goto error;
57064ada 882 }
f3ed775e 883 }
89476427 884
c7dfbc0e 885 if (config_filter) {
89476427 886 command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name,
c7dfbc0e 887 config_filter, exclusion_count, exclusion_list);
89476427
JRJ		 888 if (command_ret < 0) {
889 switch (-command_ret) {
16363652 890 case LTTNG_ERR_FILTER_EXIST:
85076754 891 WARN("Filter on all events is already enabled"
721b94fe
JR		 892 " (domain %s, channel %s, session %s)",
893 get_domain_str(dom.type),
85076754 894 print_channel_name(channel_name), session_name);
89476427 895 warn = 1;
16363652 896 break;
45d5d421
CB		 897 case LTTNG_ERR_TRACE_ALREADY_STARTED:
898 {
899 const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once.";
721b94fe 900 ERR("All events: %s (domain %s, channel %s, session %s, filter \'%s\')",
45d5d421 901 msg,
721b94fe 902 get_domain_str(dom.type),
45d5d421 903 print_channel_name(channel_name),
c7dfbc0e 904 session_name, config_filter);
45d5d421
CB		 905 error = 1;
906 break;
907 }
16363652 908 default:
721b94fe 909 ERR("All events: %s (domain %s, channel %s, session %s, filter \'%s\')",
da3d7d0e 910 lttng_strerror(command_ret),
721b94fe 911 get_domain_str(dom.type),
da3d7d0e 912 command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME
85076754
MD		 913 ? print_raw_channel_name(channel_name)
914 : print_channel_name(channel_name),
c7dfbc0e 915 session_name, config_filter);
89476427 916 error = 1;
16363652
DG		 917 break;
918 }
89476427 919 error_holder = command_ret;
16363652 920 } else {
89476427 921 ev.filter = 1;
c7dfbc0e 922 MSG("Filter '%s' successfully set", config_filter);
16363652
DG		 923 }
924 }
89476427
JRJ		 925
926 if (lttng_opt_mi) {
927 /* The wildcard * is used for kernel and ust domain to
928 * represent ALL. We copy * in event name to force the wildcard use
929 * for kernel domain
930 *
931 * Note: this is strictly for semantic and printing while in
932 * machine interface mode.
933 */
934 strcpy(ev.name, "*");
935
936 /* If we reach here the events are enabled */
937 if (!error && !warn) {
938 ev.enabled = 1;
939 } else {
940 ev.enabled = 0;
941 success = 0;
942 }
970d848b 943 ret = mi_lttng_event(writer, &ev, 1, handle->domain.type);
89476427
JRJ		 944 if (ret) {
945 ret = CMD_ERROR;
946 goto error;
947 }
948
949 /* print exclusion */
950 ret = mi_print_exclusion(exclusion_count, exclusion_list);
951 if (ret) {
952 ret = CMD_ERROR;
953 goto error;
954 }
955
956 /* Success ? */
957 ret = mi_lttng_writer_write_element_bool(writer,
958 mi_lttng_element_command_success, success);
959 if (ret) {
960 ret = CMD_ERROR;
961 goto error;
962 }
963
964 /* Close event element */
965 ret = mi_lttng_writer_close_element(writer);
966 if (ret) {
967 ret = CMD_ERROR;
968 goto error;
969 }
970 }
971
8c9ae521 972 goto end;
f3ed775e
DG		 973 }
974
975 /* Strip event list */
c7dfbc0e 976 event_name = strtok(config_event_list, ",");
f3ed775e 977 while (event_name != NULL) {
6181537c
DG		 978 /* Copy name and type of the event */
979 strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN);
980 ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
c7dfbc0e 981 ev.type = config_event_type;
6181537c 982
f3ed775e 983 /* Kernel tracer action */
c7dfbc0e
JR		 984 switch (config_domain_type) {
985 case LTTNG_DOMAIN_KERNEL:
f3ed775e 986 DBG("Enabling kernel event %s for channel %s",
85076754
MD		 987 event_name,
988 print_channel_name(channel_name));
f3ed775e 989
c7dfbc0e 990 switch (config_event_type) {
29c62722
MD		 991 case LTTNG_EVENT_ALL: /* Enable tracepoints and syscalls */
992 /* If event name differs from *, select tracepoint. */
993 if (strcmp(ev.name, "*")) {
994 ev.type = LTTNG_EVENT_TRACEPOINT;
995 }
996 break;
e6ddca71 997 case LTTNG_EVENT_TRACEPOINT:
f3ed775e 998 break;
7d29a247 999 case LTTNG_EVENT_PROBE:
c7dfbc0e 1000 ret = parse_probe_opts(&ev, config_probe);
49d4e302 1001 if (ret) {
cf0e5467 1002 ERR("Unable to parse probe options");
0d63dd19
DG		 1003 ret = 0;
1004 goto error;
1005 }
f3ed775e
DG		 1006 break;
1007 case LTTNG_EVENT_FUNCTION:
c7dfbc0e 1008 ret = parse_probe_opts(&ev, config_function);
49d4e302 1009 if (ret) {
8f0d098b
MD		 1010 ERR("Unable to parse function probe options");
1011 ret = 0;
1012 goto error;
1013 }
1014 break;
a54bd42d 1015 case LTTNG_EVENT_SYSCALL:
c6aa2d41
MD		 1016 ev.type = LTTNG_EVENT_SYSCALL;
1017 break;
f3ed775e 1018 default:
1ab1ea0b 1019 ret = CMD_UNDEFINED;
f3ed775e
DG		 1020 goto error;
1021 }
0cda4f28 1022
0cda4f28 1023 /* kernel loglevels not implemented */
8005f29a 1024 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
c7dfbc0e
JR		 1025 break;
1026 case LTTNG_DOMAIN_UST:
1027 /* User-space tracer action */
300b8fd5 1028 DBG("Enabling UST event %s for channel %s, loglevel %s", event_name,
c7dfbc0e 1029 print_channel_name(channel_name), config_loglevel ? : "<all>");
2bdd86d4 1030
c7dfbc0e 1031 switch (config_event_type) {
2bdd86d4 1032 case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */
2bdd86d4
MD		 1033 /* Fall-through */
1034 case LTTNG_EVENT_TRACEPOINT:
e4baff1e
MD		 1035 /* Copy name and type of the event */
1036 ev.type = LTTNG_EVENT_TRACEPOINT;
1037 strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN);
1038 ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
2bdd86d4
MD		 1039 break;
1040 case LTTNG_EVENT_PROBE:
1041 case LTTNG_EVENT_FUNCTION:
2bdd86d4
MD		 1042 case LTTNG_EVENT_SYSCALL:
1043 default:
cc62c0c0 1044 ERR("Event type not available for user-space tracing");
4ce78777 1045 ret = CMD_UNSUPPORTED;
2bdd86d4
MD		 1046 goto error;
1047 }
0cda4f28 1048
c7dfbc0e 1049 if (config_exclude) {
89476427 1050 ev.exclusion = 1;
d0f1c989 1051 if (config_event_type != LTTNG_EVENT_ALL && config_event_type != LTTNG_EVENT_TRACEPOINT) {
d5dd17fd
JI		 1052 ERR("Exclusion option can only be used with tracepoint events");
1053 ret = CMD_ERROR;
1054 goto error;
1055 }
7ed70bc9
JI		 1056 /* Free previously allocated items */
1057 if (exclusion_list != NULL) {
1058 while (exclusion_count--) {
1059 free(exclusion_list[exclusion_count]);
1060 }
1061 free(exclusion_list);
1062 exclusion_list = NULL;
1063 }
1064 /* Check for proper subsets */
c7dfbc0e 1065 ret = check_exclusion_subsets(event_name, config_exclude,
7ed70bc9
JI		 1066 &exclusion_count, &exclusion_list);
1067 if (ret == CMD_ERROR) {
1068 goto error;
1069 }
502bbe89
PP		 1070
1071 warn_on_truncated_exclusion_names(
1072 exclusion_list, exclusion_count, &warn);
7ed70bc9
JI		 1073 }
1074
c7dfbc0e
JR		 1075 ev.loglevel_type = config_loglevel_type;
1076 if (config_loglevel) {
1036985c 1077 ev.loglevel = loglevel_ust_str_to_value(config_loglevel);
8005f29a 1078 if (ev.loglevel == -1) {
c7dfbc0e 1079 ERR("Unknown loglevel %s", config_loglevel);
2f70b271 1080 ret = -LTTNG_ERR_INVALID;
8005f29a
MD		 1081 goto error;
1082 }
22e25b71
MD		 1083 } else {
1084 ev.loglevel = -1;
ed7f4083 1085 }
c7dfbc0e
JR		 1086 break;
1087 case LTTNG_DOMAIN_JUL:
1088 case LTTNG_DOMAIN_LOG4J:
1089 case LTTNG_DOMAIN_PYTHON:
1090 if (config_event_type != LTTNG_EVENT_ALL &&
1091 config_event_type != LTTNG_EVENT_TRACEPOINT) {
5cdb6027 1092 ERR("Event type not supported for domain.");
b9dfb167
DG		 1093 ret = CMD_UNSUPPORTED;
1094 goto error;
1095 }
b2064f54 1096
c7dfbc0e
JR		 1097 ev.loglevel_type = config_loglevel_type;
1098 if (config_loglevel) {
1036985c 1099 ev.loglevel = loglevel_str_to_value(config_loglevel, config_domain_type);
b2064f54 1100 if (ev.loglevel == -1) {
c7dfbc0e 1101 ERR("Unknown loglevel %s", config_loglevel);
b2064f54
DG		 1102 ret = -LTTNG_ERR_INVALID;
1103 goto error;
1104 }
1105 } else {
c7dfbc0e
JR		 1106 switch (config_domain_type) {
1107 case LTTNG_DOMAIN_JUL:
5cdb6027 1108 ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL;
c7dfbc0e
JR		 1109 break;
1110 case LTTNG_DOMAIN_LOG4J:
5cdb6027 1111 ev.loglevel = LTTNG_LOGLEVEL_LOG4J_ALL;
c7dfbc0e
JR		 1112 break;
1113 case LTTNG_DOMAIN_PYTHON:
0e115563 1114 ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG;
c7dfbc0e
JR		 1115 break;
1116 default:
1117 assert(0);
1118 break;
5cdb6027 1119 }
b2064f54 1120 }
b9dfb167
DG		 1121 ev.type = LTTNG_EVENT_TRACEPOINT;
1122 strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN);
1123 ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
c7dfbc0e
JR		 1124 break;
1125 default:
3ecec76a 1126 assert(0);
f3ed775e
DG		 1127 }
1128
c7dfbc0e 1129 if (!config_filter) {
9c48cab3
JI		 1130 char *exclusion_string;
1131
89476427 1132 command_ret = lttng_enable_event_with_exclusions(handle,
7ed70bc9
JI		 1133 &ev, channel_name,
1134 NULL, exclusion_count, exclusion_list);
9c48cab3 1135 exclusion_string = print_exclusions(exclusion_count, exclusion_list);
5ef79758
MD		 1136 if (!exclusion_string) {
1137 PERROR("Cannot allocate exclusion_string");
1138 error = 1;
1139 goto end;
1140 }
89476427 1141 if (command_ret < 0) {
025faf73 1142 /* Turn ret to positive value to handle the positive error code */
89476427 1143 switch (-command_ret) {
025faf73 1144 case LTTNG_ERR_KERN_EVENT_EXIST:
9c48cab3 1145 WARN("Kernel event %s%s already enabled (channel %s, session %s)",
85076754 1146 event_name,
9c48cab3 1147 exclusion_string,
85076754 1148 print_channel_name(channel_name), session_name);
89476427 1149 warn = 1;
025faf73 1150 break;
45d5d421
CB		 1151 case LTTNG_ERR_TRACE_ALREADY_STARTED:
1152 {
1153 const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once.";
721b94fe 1154 ERR("Event %s%s: %s (domain %s,channel %s, session %s)", event_name,
45d5d421
CB		 1155 exclusion_string,
1156 msg,
721b94fe 1157 get_domain_str(dom.type),
45d5d421
CB		 1158 print_channel_name(channel_name),
1159 session_name);
1160 error = 1;
1161 break;
1162 }
025faf73 1163 default:
721b94fe 1164 ERR("Event %s%s: %s (domain %s, channel %s, session %s)", event_name,
9c48cab3 1165 exclusion_string,
da3d7d0e 1166 lttng_strerror(command_ret),
721b94fe 1167 get_domain_str(dom.type),
da3d7d0e 1168 command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME
85076754
MD		 1169 ? print_raw_channel_name(channel_name)
1170 : print_channel_name(channel_name),
1171 session_name);
89476427 1172 error = 1;
025faf73
DG		 1173 break;
1174 }
89476427 1175 error_holder = command_ret;
025faf73 1176 } else {
8274eeba
AB		 1177 switch (dom.type) {
1178 case LTTNG_DOMAIN_KERNEL:
1179 case LTTNG_DOMAIN_UST:
49ceaa70 1180 MSG("%s event %s%s created in channel %s",
8274eeba
AB		 1181 get_domain_str(dom.type),
1182 event_name,
1183 exclusion_string,
1184 print_channel_name(channel_name));
1185 break;
1186 case LTTNG_DOMAIN_JUL:
1187 case LTTNG_DOMAIN_LOG4J:
1188 case LTTNG_DOMAIN_PYTHON:
1189 /*
1190 * Don't print the default channel
1191 * name for agent domains.
1192 */
895707da 1193 MSG("%s event %s%s enabled",
8274eeba
AB		 1194 get_domain_str(dom.type),
1195 event_name,
1196 exclusion_string);
1197 break;
1198 default:
1199 assert(0);
49ceaa70 1200 }
42224349 1201 }
9c48cab3 1202 free(exclusion_string);
6181537c 1203 }
025faf73 1204
c7dfbc0e 1205 if (config_filter) {
9c48cab3
JI		 1206 char *exclusion_string;
1207
89476427
JRJ		 1208 /* Filter present */
1209 ev.filter = 1;
1210
1211 command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name,
c7dfbc0e 1212 config_filter, exclusion_count, exclusion_list);
9c48cab3 1213 exclusion_string = print_exclusions(exclusion_count, exclusion_list);
5ef79758
MD		 1214 if (!exclusion_string) {
1215 PERROR("Cannot allocate exclusion_string");
1216 error = 1;
1217 goto end;
1218 }
89476427
JRJ		 1219 if (command_ret < 0) {
1220 switch (-command_ret) {
7671f53c 1221 case LTTNG_ERR_FILTER_EXIST:
9c48cab3 1222 WARN("Filter on event %s%s is already enabled"
721b94fe 1223 " (domain %s, channel %s, session %s)",
85076754 1224 event_name,
9c48cab3 1225 exclusion_string,
721b94fe 1226 get_domain_str(dom.type),
85076754 1227 print_channel_name(channel_name), session_name);
89476427 1228 warn = 1;
7671f53c 1229 break;
45d5d421
CB		 1230 case LTTNG_ERR_TRACE_ALREADY_STARTED:
1231 {
1232 const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once.";
721b94fe 1233 ERR("Event %s%s: %s (domain %s, channel %s, session %s, filter \'%s\')", ev.name,
45d5d421
CB		 1234 exclusion_string,
1235 msg,
721b94fe 1236 get_domain_str(dom.type),
45d5d421 1237 print_channel_name(channel_name),
c7dfbc0e 1238 session_name, config_filter);
45d5d421
CB		 1239 error = 1;
1240 break;
1241 }
7671f53c 1242 default:
721b94fe 1243 ERR("Event %s%s: %s (domain %s, channel %s, session %s, filter \'%s\')", ev.name,
9c48cab3 1244 exclusion_string,
da3d7d0e 1245 lttng_strerror(command_ret),
721b94fe 1246 get_domain_str(dom.type),
da3d7d0e 1247 command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME
85076754
MD		 1248 ? print_raw_channel_name(channel_name)
1249 : print_channel_name(channel_name),
c7dfbc0e 1250 session_name, config_filter);
89476427 1251 error = 1;
7671f53c
CB		 1252 break;
1253 }
89476427
JRJ		 1254 error_holder = command_ret;
1255
16363652 1256 } else {
721b94fe 1257 MSG("Event %s%s: Filter '%s' for domain %s successfully set",
9c48cab3 1258 event_name, exclusion_string,
c7dfbc0e 1259 config_filter,
721b94fe 1260 get_domain_str(dom.type));
53a80697 1261 }
9c48cab3 1262 free(exclusion_string);
53a80697 1263 }
6181537c 1264
89476427
JRJ		 1265 if (lttng_opt_mi) {
1266 if (command_ret) {
1267 success = 0;
1268 ev.enabled = 0;
1269 } else {
1270 ev.enabled = 1;
1271 }
1272
970d848b 1273 ret = mi_lttng_event(writer, &ev, 1, handle->domain.type);
89476427
JRJ		 1274 if (ret) {
1275 ret = CMD_ERROR;
1276 goto error;
1277 }
1278
1279 /* print exclusion */
1280 ret = mi_print_exclusion(exclusion_count, exclusion_list);
1281 if (ret) {
1282 ret = CMD_ERROR;
1283 goto error;
1284 }
1285
1286 /* Success ? */
1287 ret = mi_lttng_writer_write_element_bool(writer,
1288 mi_lttng_element_command_success, success);
1289 if (ret) {
1290 ret = CMD_ERROR;
1291 goto end;
1292 }
1293
1294 /* Close event element */
1295 ret = mi_lttng_writer_close_element(writer);
1296 if (ret) {
1297 ret = CMD_ERROR;
1298 goto end;
1299 }
1300 }
1301
f3ed775e
DG		 1302 /* Next event */
1303 event_name = strtok(NULL, ",");
89476427
JRJ		 1304 /* Reset warn, error and success */
1305 success = 1;
f3ed775e
DG		 1306 }
1307
8c9ae521 1308end:
89476427
JRJ		 1309 /* Close Mi */
1310 if (lttng_opt_mi) {
c7dfbc0e
JR		 1311 /* Close events and domain element */
1312 ret = mi_lttng_close_multi_element(writer, 2);
89476427
JRJ		 1313 if (ret) {
1314 ret = CMD_ERROR;
1315 goto error;
1316 }
1317 }
f3ed775e 1318error:
ae856491
DG		 1319 if (warn) {
1320 ret = CMD_WARNING;
1321 }
89476427
JRJ		 1322 if (error) {
1323 ret = CMD_ERROR;
1324 }
cd80958d
DG		 1325 lttng_destroy_handle(handle);
1326
7ed70bc9
JI		 1327 if (exclusion_list != NULL) {
1328 while (exclusion_count--) {
1329 free(exclusion_list[exclusion_count]);
1330 }
1331 free(exclusion_list);
1332 }
1333
89476427
JRJ		 1334 /* Overwrite ret with error_holder if there was an actual error with
1335 * enabling an event.
1336 */
1337 ret = error_holder ? error_holder : ret;
1338
f3ed775e
DG		 1339 return ret;
1340}
1341
1342/*
6181537c 1343 * Add event to trace session
f3ed775e 1344 */
721b94fe
JR		 1345
1346struct args_tuple {
1347 int argv_index_start;
1348 int argv_index_end;
1349};
1350
721b94fe
JR		 1351
1352static struct domain_configuration *initialize_domain_configuration(enum lttng_domain_type type)
f3ed775e 1353{
f3ed775e 1354
721b94fe 1355 struct domain_configuration *config = malloc(sizeof(struct domain_configuration));
f3ed775e 1356
721b94fe
JR		 1357 if (!config) {
1358 goto end;
1359 }
f3ed775e 1360
721b94fe 1361 switch(type) {
c7dfbc0e
JR		 1362 case LTTNG_DOMAIN_KERNEL:
1363 config->domain_type = LTTNG_DOMAIN_KERNEL;
1364 break;
1365 case LTTNG_DOMAIN_UST:
1366 config->domain_type = LTTNG_DOMAIN_UST;
1367 break;
1368 case LTTNG_DOMAIN_JUL:
1369 config->domain_type = LTTNG_DOMAIN_JUL;
1370 break;
1371 case LTTNG_DOMAIN_LOG4J:
1372 config->domain_type = LTTNG_DOMAIN_LOG4J;
1373 break;
1374 case LTTNG_DOMAIN_PYTHON:
1375 config->domain_type = LTTNG_DOMAIN_PYTHON;
1376 break;
1377 case LTTNG_DOMAIN_NONE:
1378 default:
1379 free(config);
1380 config=NULL;
1381 goto end;
721b94fe
JR		 1382 };
1383
1384 config->event_type = LTTNG_EVENT_ALL ;
1385 config->enable_all = 0;
1386 config->loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
1387 config->loglevel = NULL;
1388 config->probe = NULL;
1389 config->function = NULL;
1390 config->channel_name = NULL;
1391 config->filter = NULL;
1392 config->exclude = NULL;
1393 config->event_list = NULL;
1394end:
1395 return config;
1396}
de044b7a 1397
721b94fe
JR		 1398int cmd_enable_events(int argc, const char **argv)
1399{
1400 int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1;
1401 static poptContext pc;
1402 char *session_name = NULL;
1403 int event_type = -1;
f3ed775e 1404
721b94fe 1405 struct domain_configuration *jul_config = NULL;
c7dfbc0e 1406 struct domain_configuration *kernel_config = NULL;
721b94fe
JR		 1407 struct domain_configuration *log4j_config = NULL;
1408 struct domain_configuration *python_config = NULL;
c7dfbc0e 1409 struct domain_configuration *ust_config = NULL;
3ecec76a 1410
89476427
JRJ		 1411 /* Mi check */
1412 if (lttng_opt_mi) {
1413 writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
1414 if (!writer) {
1415 ret = -LTTNG_ERR_NOMEM;
1416 goto end;
1417 }
1418
1419 /* Open command element */
1420 ret = mi_lttng_writer_command_open(writer,
1421 mi_lttng_element_command_enable_event);
1422 if (ret) {
1423 ret = CMD_ERROR;
1424 goto end;
1425 }
1426
1427 /* Open output element */
1428 ret = mi_lttng_writer_open_element(writer,
1429 mi_lttng_element_command_output);
1430 if (ret) {
1431 ret = CMD_ERROR;
1432 goto end;
1433 }
c7dfbc0e
JR		 1434
1435 /* Open the domains element */
1436 ret = mi_lttng_domains_open(writer);
1437 if (ret) {
1438 ret = CMD_ERROR;
1439 goto end;
1440 }
1441
89476427
JRJ		 1442 }
1443
721b94fe
JR		 1444 /* Parse global arguments */
1445 pc = poptGetContext(NULL, argc, argv, global_long_options, 0);
1446 poptReadDefaultConfig(pc, 0);
1447
1448
1449 while ((opt = poptGetNextOpt(pc)) != -1) {
1450 switch (opt) {
1451 case OPT_HELP:
1452 SHOW_HELP();
1453 goto end;
1454 case OPT_LIST_OPTIONS:
1455 list_cmd_options(stdout, long_options);
1456 goto end;
1457 default:
1458 break;
1459 }
f3ed775e
DG		 1460 }
1461
721b94fe
JR		 1462 /* Dispose the global arguments context */
1463 poptFreeContext(pc);
1464 pc = NULL;
1465
c7dfbc0e
JR		 1466 if (!opt_session_name) {
1467 session_name = get_session_name();
1468 if (session_name == NULL) {
1469 command_ret = CMD_ERROR;
1470 success = 0;
1471 goto mi_closing;
1472 }
1473 } else {
1474 session_name = opt_session_name;
1475 }
1476
721b94fe
JR		 1477 /* Find the number of domain based on the passed arguments */
1478 int i;
1479 int args_tuple_count = 0;
1480 int arg_state_looking_for_end = 0;
1481 struct args_tuple *args_tuple_list = NULL;
1482 for (i = 1; i < argc ; i++) {
1483
1484 if (strcmp("-u", argv[i]) && strcmp("--userspace", argv[i]) &&
1485 strcmp("-j", argv[i]) && strcmp("--jul", argv[i]) &&
1486 strcmp("-l", argv[i]) && strcmp("--log4j", argv[i]) &&
1487 strcmp("-p", argv[i]) && strcmp("--python", argv[i]) &&
1488 strcmp("-k", argv[i]) && strcmp("--kernel", argv[i])) {
1489 continue;
1490 }
1491
1492
1493 struct args_tuple *tmp_pointer = NULL;
1494 args_tuple_count++;
1495 tmp_pointer = realloc(args_tuple_list, sizeof(struct args_tuple) * args_tuple_count);
1496 if (!tmp_pointer) {
1497 ERR("Realoc of args tuple failed");
1498 ret = CMD_ERROR;
1499 goto end;
1500 }
1501 args_tuple_list = tmp_pointer;
1502
1503 if (!arg_state_looking_for_end) {
1504 if (args_tuple_count -1 < 0) {
1505 ERR("Args parsing illegal state");
1506 ret = CMD_ERROR;
1507 goto end;
1508 }
1509 args_tuple_list[args_tuple_count-1].argv_index_start = i;
1510 arg_state_looking_for_end = 1;
1511 } else {
1512 if (args_tuple_count - 2 < 0 || args_tuple_count -1 < 0) {
1513 ERR("Args parsing illegal state");
1514 ret = CMD_ERROR;
1515 goto end;
1516 }
1517
1518 /* Close the previous tuple */
1519 args_tuple_list[args_tuple_count-2].argv_index_end = i - 1;
1520
1521 /* Start the new tuple */
1522 args_tuple_list[args_tuple_count-1].argv_index_start = i;
cd80958d 1523 }
cd80958d
DG		 1524 }
1525
721b94fe
JR		 1526 if (args_tuple_count <= 0) {
1527 ret = print_missing_or_multiple_domains(0);
1528 if (ret) {
1529 ret = CMD_ERROR;
1530 goto end;
1531 }
1532 goto end;
89476427
JRJ		 1533 }
1534
721b94fe
JR		 1535 /* Close the last tuple */
1536 args_tuple_list[args_tuple_count-1].argv_index_end = i - 1;
1537
1538 if (args_tuple_count == 1) {
1539 /* Preserve the old way with a domain flag that can be anywhere */
1540 args_tuple_list[0].argv_index_start = 1;
1541 }
1542
1543 for (i = 0; i < args_tuple_count; i++) {
1544 struct args_tuple *tuple = &args_tuple_list[i];
1545 int cur_argc = tuple->argv_index_end - tuple-> argv_index_start + 1;
1546 const char **cur_argv = &argv[tuple->argv_index_start];
1547
1548 /* Default options */
1549
1550 /* Domain */
1551 opt_domain = LTTNG_DOMAIN_NONE;
1552
1553 /* Event options */
1554 opt_enable_all = 0;
1555 opt_event_type = LTTNG_EVENT_ALL;
1556 opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
1557 opt_event_list = NULL;
1558 opt_loglevel = NULL;
1559 opt_probe = NULL;
1560 opt_function = NULL;
1561 opt_channel_name = NULL;
1562 opt_filter = NULL;
1563 opt_exclude = NULL;
1564
1565 pc = poptGetContext(NULL, cur_argc, cur_argv, long_options, POPT_CONTEXT_KEEP_FIRST);
1566 poptReadDefaultConfig(pc, 0);
1567
1568 /* Default event type */
1569 opt_event_type = LTTNG_EVENT_ALL;
1570
1571 while ((opt = poptGetNextOpt(pc)) != -1) {
1572 switch (opt) {
1573 case OPT_HELP:
1574 SHOW_HELP();
1575 goto end;
1576 case OPT_TRACEPOINT:
1577 opt_event_type = LTTNG_EVENT_TRACEPOINT;
1578 break;
1579 case OPT_PROBE:
1580 opt_event_type = LTTNG_EVENT_PROBE;
1581 break;
1582 case OPT_FUNCTION:
1583 opt_event_type = LTTNG_EVENT_FUNCTION;
1584 break;
1585 case OPT_SYSCALL:
1586 opt_event_type = LTTNG_EVENT_SYSCALL;
1587 break;
1588 case OPT_LOGLEVEL:
1589 opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE;
1590 opt_loglevel = poptGetOptArg(pc);
1591 break;
1592 case OPT_LOGLEVEL_ONLY:
1593 opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE;
1594 opt_loglevel = poptGetOptArg(pc);
1595 break;
1596 case OPT_LIST_OPTIONS:
1597 list_cmd_options(stdout, long_options);
1598 goto end;
1599 case OPT_FILTER:
1600 break;
1601 case OPT_EXCLUDE:
1602 break;
1603 default:
1604 ret = CMD_UNDEFINED;
1605 goto end;
1606 }
1607
1608 /* Validate event type. Multiple event type are not supported. */
1609 if (event_type == -1) {
1610 event_type = opt_event_type;
1611 } else {
1612 if (event_type != opt_event_type) {
1613 ERR("Multiple event type not supported.");
1614 ret = CMD_ERROR;
1615 goto end;
1616 }
1617 }
1618 }
1619
1620 struct domain_configuration *tmp_config = initialize_domain_configuration(opt_domain);
1621
1622 opt_event_list = (char*) poptGetArg(pc);
1623 if (opt_event_list == NULL && opt_enable_all == 0) {
1624 ERR("Missing event name(s).\n");
1625 ret = CMD_ERROR;
1626 goto end;
1627 }
1628
721b94fe 1629
c7dfbc0e
JR		 1630 tmp_config->event_type = opt_event_type ;
1631 tmp_config->enable_all = opt_enable_all;
1632 tmp_config->loglevel_type = opt_loglevel_type;
1633 tmp_config->loglevel = opt_loglevel;
1634 tmp_config->probe = opt_probe;
1635 tmp_config->function = opt_function;
1636 tmp_config->channel_name = opt_channel_name;
1637 tmp_config->filter = opt_filter;
1638 tmp_config->exclude = opt_exclude;
1639 tmp_config->event_list = opt_event_list;
721b94fe
JR		 1640
1641 switch(opt_domain) {
1642 case LTTNG_DOMAIN_KERNEL:
1643 if (kernel_config) {
1644 ERR("Only one -k option is permitted per command");
1645 ret = CMD_ERROR;
1646 goto end;
1647 }
1648 kernel_config = tmp_config;
1649 break;
1650 case LTTNG_DOMAIN_UST:
1651 if (ust_config) {
1652 ERR("Only one -u option is permitted per command");
1653 ret = CMD_ERROR;
1654 goto end;
1655 }
1656 ust_config = tmp_config;
1657 break;
1658 case LTTNG_DOMAIN_JUL:
1659 if (jul_config) {
1660 ERR("Only one -j option is permitted per command");
1661 ret = CMD_ERROR;
1662 goto end;
1663 }
1664 jul_config = tmp_config;
1665 break;
1666 case LTTNG_DOMAIN_LOG4J:
1667 if (log4j_config) {
1668 ERR("Only one -l option is permitted per command");
1669 ret = CMD_ERROR;
1670 goto end;
1671 }
1672 log4j_config = tmp_config;
1673 break;
1674 case LTTNG_DOMAIN_PYTHON:
1675 if (python_config) {
1676 ERR("Only one -p option is permitted per command");
1677 ret = CMD_ERROR;
1678 goto end;
1679 }
1680 python_config = tmp_config;
1681 break;
1682 case LTTNG_DOMAIN_NONE:
1683 default:
1684 ret = CMD_ERROR;
c7dfbc0e
JR		 1685 goto end;
1686 }
721b94fe
JR		 1687
1688 tmp_config = NULL;
1689
c7dfbc0e
JR		 1690 poptFreeContext(pc);
1691 pc = NULL;
721b94fe
JR		 1692 }
1693
c7dfbc0e
JR		 1694 if (kernel_config) {
1695 command_ret = enable_events(session_name, kernel_config);
721b94fe
JR		 1696 if (command_ret) {
1697 success = 0;
1698 }
c7dfbc0e
JR		 1699 }
1700
1701 if (ust_config) {
1702 command_ret = enable_events(session_name, ust_config);
1703 if (command_ret) {
1704 success = 0;
1705 }
1706 }
1707
1708 if (jul_config) {
1709 command_ret = enable_events(session_name, jul_config);
1710 if (command_ret) {
1711 success = 0;
1712 }
1713 }
1714
1715 if (log4j_config) {
1716 command_ret = enable_events(session_name, log4j_config);
1717 if (command_ret) {
1718 success = 0;
1719 }
1720 }
1721
1722 if (python_config) {
1723 command_ret = enable_events(session_name, python_config);
1724 if (command_ret) {
1725 success = 0;
1726 }
1727 }
721b94fe 1728
89476427
JRJ		 1729mi_closing:
1730 /* Mi closing */
1731 if (lttng_opt_mi) {
c7dfbc0e
JR		 1732 /* Close domains and output element */
1733 ret = mi_lttng_close_multi_element(writer, 2);
89476427
JRJ		 1734 if (ret) {
1735 ret = CMD_ERROR;
1736 goto end;
1737 }
1738
1739 ret = mi_lttng_writer_write_element_bool(writer,
1740 mi_lttng_element_command_success, success);
1741 if (ret) {
1742 ret = CMD_ERROR;
1743 goto end;
1744 }
1745
1746 /* Command element close */
1747 ret = mi_lttng_writer_command_close(writer);
1748 if (ret) {
1749 ret = CMD_ERROR;
1750 goto end;
1751 }
1752 }
f3ed775e
DG		 1753
1754end:
89476427
JRJ		 1755 /* Mi clean-up */
1756 if (writer && mi_lttng_writer_destroy(writer)) {
1757 /* Preserve original error code */
1758 ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL;
1759 }
1760
cd80958d 1761 if (opt_session_name == NULL) {
c7dfbc0e 1762 printf("Here\n");
cd80958d
DG		 1763 free(session_name);
1764 }
1765
89476427
JRJ		 1766 /* Overwrite ret if an error occurred in enable_events */
1767 ret = command_ret ? command_ret : ret;
1768
c7dfbc0e 1769 free(args_tuple_list);
721b94fe 1770 free(jul_config);
c7dfbc0e 1771 free(kernel_config);
721b94fe
JR		 1772 free(log4j_config);
1773 free(python_config);
c7dfbc0e 1774 free(ust_config);
ca1c3607 1775 poptFreeContext(pc);
f3ed775e
DG		 1776 return ret;
1777}
LTTng tools - Deliverables
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