2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
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.
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.
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.
24 #include <sys/types.h>
29 #include "../command.h"
30 #include <src/common/sessiond-comm/sessiond-comm.h>
32 static char *opt_event_list
;
33 static int opt_event_type
;
34 static const char *opt_loglevel
;
35 static int opt_loglevel_type
;
36 static int opt_kernel
;
37 static char *opt_session_name
;
38 static int opt_userspace
;
39 static int opt_enable_all
;
40 static char *opt_probe
;
41 static char *opt_function
;
42 static char *opt_function_entry_symbol
;
43 static char *opt_channel_name
;
44 static char *opt_filter
;
46 /* Not implemented yet */
47 static char *opt_cmd_name
;
65 static struct lttng_handle
*handle
;
67 static struct poptOption long_options
[] = {
68 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
69 {"help", 'h', POPT_ARG_NONE
, 0, OPT_HELP
, 0, 0},
70 {"session", 's', POPT_ARG_STRING
, &opt_session_name
, 0, 0, 0},
71 {"all", 'a', POPT_ARG_VAL
, &opt_enable_all
, 1, 0, 0},
72 {"channel", 'c', POPT_ARG_STRING
, &opt_channel_name
, 0, 0, 0},
73 {"kernel", 'k', POPT_ARG_VAL
, &opt_kernel
, 1, 0, 0},
74 {"userspace", 'u', POPT_ARG_NONE
, 0, OPT_USERSPACE
, 0, 0},
75 {"tracepoint", 0, POPT_ARG_NONE
, 0, OPT_TRACEPOINT
, 0, 0},
76 {"probe", 0, POPT_ARG_STRING
, &opt_probe
, OPT_PROBE
, 0, 0},
77 {"function", 0, POPT_ARG_STRING
, &opt_function
, OPT_FUNCTION
, 0, 0},
80 * Currently removed from lttng kernel tracer. Removed from
81 * lttng UI to discourage its use.
83 {"function:entry", 0, POPT_ARG_STRING
, &opt_function_entry_symbol
, OPT_FUNCTION_ENTRY
, 0, 0},
85 {"syscall", 0, POPT_ARG_NONE
, 0, OPT_SYSCALL
, 0, 0},
86 {"loglevel", 0, POPT_ARG_STRING
, 0, OPT_LOGLEVEL
, 0, 0},
87 {"loglevel-only", 0, POPT_ARG_STRING
, 0, OPT_LOGLEVEL_ONLY
, 0, 0},
88 {"list-options", 0, POPT_ARG_NONE
, NULL
, OPT_LIST_OPTIONS
, NULL
, NULL
},
89 {"filter", 'f', POPT_ARG_STRING
, &opt_filter
, OPT_FILTER
, 0, 0},
96 static void usage(FILE *ofp
)
98 fprintf(ofp
, "usage: lttng enable-event NAME[,NAME2,...] [-k|-u] [OPTIONS] \n");
100 fprintf(ofp
, "Options:\n");
101 fprintf(ofp
, " -h, --help Show this help\n");
102 fprintf(ofp
, " --list-options Simple listing of options\n");
103 fprintf(ofp
, " -s, --session NAME Apply to session name\n");
104 fprintf(ofp
, " -c, --channel NAME Apply to this channel\n");
105 fprintf(ofp
, " -a, --all Enable all tracepoints and syscalls\n");
106 fprintf(ofp
, " -k, --kernel Apply for the kernel tracer\n");
107 fprintf(ofp
, " -u, --userspace Apply to the user-space tracer\n");
109 fprintf(ofp
, "Event options:\n");
110 fprintf(ofp
, " --tracepoint Tracepoint event (default)\n");
111 fprintf(ofp
, " - userspace tracer supports wildcards at end of string.\n");
112 fprintf(ofp
, " Don't forget to quote to deal with bash expansion.\n");
113 fprintf(ofp
, " e.g.:\n");
114 fprintf(ofp
, " \"*\"\n");
115 fprintf(ofp
, " \"app_component:na*\"\n");
116 fprintf(ofp
, " --probe [addr | symbol | symbol+offset]\n");
117 fprintf(ofp
, " Dynamic probe.\n");
118 fprintf(ofp
, " Addr and offset can be octal (0NNN...),\n");
119 fprintf(ofp
, " decimal (NNN...) or hexadecimal (0xNNN...)\n");
120 fprintf(ofp
, " --function [addr | symbol | symbol+offset]\n");
121 fprintf(ofp
, " Dynamic function entry/return probe.\n");
122 fprintf(ofp
, " Addr and offset can be octal (0NNN...),\n");
123 fprintf(ofp
, " decimal (NNN...) or hexadecimal (0xNNN...)\n");
125 fprintf(ofp
, " --function:entry symbol\n");
126 fprintf(ofp
, " Function tracer event\n");
128 fprintf(ofp
, " --syscall System call event\n");
130 fprintf(ofp
, " --loglevel name\n");
131 fprintf(ofp
, " Tracepoint loglevel range from 0 to loglevel\n");
132 fprintf(ofp
, " --loglevel-only name\n");
133 fprintf(ofp
, " Tracepoint loglevel (only this loglevel)\n");
135 fprintf(ofp
, " The loglevel or loglevel-only options should be\n");
136 fprintf(ofp
, " combined with a tracepoint name or tracepoint\n");
137 fprintf(ofp
, " wildcard.\n");
138 fprintf(ofp
, " Available loglevels:\n");
139 fprintf(ofp
, " (higher value is more verbose)\n");
140 fprintf(ofp
, " TRACE_EMERG = 0\n");
141 fprintf(ofp
, " TRACE_ALERT = 1\n");
142 fprintf(ofp
, " TRACE_CRIT = 2\n");
143 fprintf(ofp
, " TRACE_ERR = 3\n");
144 fprintf(ofp
, " TRACE_WARNING = 4\n");
145 fprintf(ofp
, " TRACE_NOTICE = 5\n");
146 fprintf(ofp
, " TRACE_INFO = 6\n");
147 fprintf(ofp
, " TRACE_DEBUG_SYSTEM = 7\n");
148 fprintf(ofp
, " TRACE_DEBUG_PROGRAM = 8\n");
149 fprintf(ofp
, " TRACE_DEBUG_PROCESS = 9\n");
150 fprintf(ofp
, " TRACE_DEBUG_MODULE = 10\n");
151 fprintf(ofp
, " TRACE_DEBUG_UNIT = 11\n");
152 fprintf(ofp
, " TRACE_DEBUG_FUNCTION = 12\n");
153 fprintf(ofp
, " TRACE_DEBUG_LINE = 13\n");
154 fprintf(ofp
, " TRACE_DEBUG = 14\n");
155 fprintf(ofp
, " (shortcuts such as \"system\" are allowed)\n");
156 fprintf(ofp
, " --filter \'expression\'\n");
157 fprintf(ofp
, " Filter expression on event fields,\n");
158 fprintf(ofp
, " event recording depends on evaluation.\n");
159 fprintf(ofp
, " Only specify on first activation of\n");
160 fprintf(ofp
, " a given event within a session.\n");
161 fprintf(ofp
, " Filter only allowed when enabling\n");
162 fprintf(ofp
, " events within a session before tracing\n");
163 fprintf(ofp
, " is started. If the filter fails to link\n");
164 fprintf(ofp
, " with the event within the traced domain,\n");
165 fprintf(ofp
, " the event will be discarded. Currently,\n");
166 fprintf(ofp
, " filter is only implemented for the user-space\n");
167 fprintf(ofp
, " tracer.\n");
168 fprintf(ofp
, " Expression examples:.\n");
170 fprintf(ofp
, " 'intfield > 500 && intfield < 503'\n");
171 fprintf(ofp
, " '(stringfield == \"test\" || intfield != 10) && intfield > 33'\n");
172 fprintf(ofp
, " 'doublefield > 1.1 && intfield < 5.3'\n");
174 fprintf(ofp
, " Wildcards are allowed at the end of strings:\n");
175 fprintf(ofp
, " 'seqfield1 == \"te*\"'\n");
176 fprintf(ofp
, " In string literals, the escape character is '\\'.\n");
177 fprintf(ofp
, " Use '\\*' for the '*' character, and '\\\\' for\n");
178 fprintf(ofp
, " the '\\' character.\n");
183 * Parse probe options.
185 static int parse_probe_opts(struct lttng_event
*ev
, char *opt
)
189 char name
[LTTNG_SYMBOL_NAME_LEN
];
196 /* Check for symbol+offset */
197 ret
= sscanf(opt
, "%[^'+']+%s", name
, s_hex
);
199 strncpy(ev
->attr
.probe
.symbol_name
, name
, LTTNG_SYMBOL_NAME_LEN
);
200 ev
->attr
.probe
.symbol_name
[LTTNG_SYMBOL_NAME_LEN
- 1] = '\0';
201 DBG("probe symbol %s", ev
->attr
.probe
.symbol_name
);
202 if (strlen(s_hex
) == 0) {
203 ERR("Invalid probe offset %s", s_hex
);
207 ev
->attr
.probe
.offset
= strtoul(s_hex
, NULL
, 0);
208 DBG("probe offset %" PRIu64
, ev
->attr
.probe
.offset
);
209 ev
->attr
.probe
.addr
= 0;
213 /* Check for symbol */
214 if (isalpha(name
[0])) {
215 ret
= sscanf(opt
, "%s", name
);
217 strncpy(ev
->attr
.probe
.symbol_name
, name
, LTTNG_SYMBOL_NAME_LEN
);
218 ev
->attr
.probe
.symbol_name
[LTTNG_SYMBOL_NAME_LEN
- 1] = '\0';
219 DBG("probe symbol %s", ev
->attr
.probe
.symbol_name
);
220 ev
->attr
.probe
.offset
= 0;
221 DBG("probe offset %" PRIu64
, ev
->attr
.probe
.offset
);
222 ev
->attr
.probe
.addr
= 0;
227 /* Check for address */
228 ret
= sscanf(opt
, "%s", s_hex
);
230 if (strlen(s_hex
) == 0) {
231 ERR("Invalid probe address %s", s_hex
);
235 ev
->attr
.probe
.addr
= strtoul(s_hex
, NULL
, 0);
236 DBG("probe addr %" PRIu64
, ev
->attr
.probe
.addr
);
237 ev
->attr
.probe
.offset
= 0;
238 memset(ev
->attr
.probe
.symbol_name
, 0, LTTNG_SYMBOL_NAME_LEN
);
250 * Maps loglevel from string to value
253 int loglevel_str_to_value(const char *inputstr
)
256 char str
[LTTNG_SYMBOL_NAME_LEN
];
258 while (inputstr
[i
] != '\0' && i
< LTTNG_SYMBOL_NAME_LEN
) {
259 str
[i
] = toupper(inputstr
[i
]);
263 if (!strcmp(str
, "TRACE_EMERG") || !strcmp(str
, "EMERG")) {
264 return LTTNG_LOGLEVEL_EMERG
;
265 } else if (!strcmp(str
, "TRACE_ALERT") || !strcmp(str
, "ALERT")) {
266 return LTTNG_LOGLEVEL_ALERT
;
267 } else if (!strcmp(str
, "TRACE_CRIT") || !strcmp(str
, "CRIT")) {
268 return LTTNG_LOGLEVEL_CRIT
;
269 } else if (!strcmp(str
, "TRACE_ERR") || !strcmp(str
, "ERR")) {
270 return LTTNG_LOGLEVEL_ERR
;
271 } else if (!strcmp(str
, "TRACE_WARNING") || !strcmp(str
, "WARNING")) {
272 return LTTNG_LOGLEVEL_WARNING
;
273 } else if (!strcmp(str
, "TRACE_NOTICE") || !strcmp(str
, "NOTICE")) {
274 return LTTNG_LOGLEVEL_NOTICE
;
275 } else if (!strcmp(str
, "TRACE_INFO") || !strcmp(str
, "INFO")) {
276 return LTTNG_LOGLEVEL_INFO
;
277 } else if (!strcmp(str
, "TRACE_DEBUG_SYSTEM") || !strcmp(str
, "DEBUG_SYSTEM") || !strcmp(str
, "SYSTEM")) {
278 return LTTNG_LOGLEVEL_DEBUG_SYSTEM
;
279 } else if (!strcmp(str
, "TRACE_DEBUG_PROGRAM") || !strcmp(str
, "DEBUG_PROGRAM") || !strcmp(str
, "PROGRAM")) {
280 return LTTNG_LOGLEVEL_DEBUG_PROGRAM
;
281 } else if (!strcmp(str
, "TRACE_DEBUG_PROCESS") || !strcmp(str
, "DEBUG_PROCESS") || !strcmp(str
, "PROCESS")) {
282 return LTTNG_LOGLEVEL_DEBUG_PROCESS
;
283 } else if (!strcmp(str
, "TRACE_DEBUG_MODULE") || !strcmp(str
, "DEBUG_MODULE") || !strcmp(str
, "MODULE")) {
284 return LTTNG_LOGLEVEL_DEBUG_MODULE
;
285 } else if (!strcmp(str
, "TRACE_DEBUG_UNIT") || !strcmp(str
, "DEBUG_UNIT") || !strcmp(str
, "UNIT")) {
286 return LTTNG_LOGLEVEL_DEBUG_UNIT
;
287 } else if (!strcmp(str
, "TRACE_DEBUG_FUNCTION") || !strcmp(str
, "DEBUG_FUNCTION") || !strcmp(str
, "FUNCTION")) {
288 return LTTNG_LOGLEVEL_DEBUG_FUNCTION
;
289 } else if (!strcmp(str
, "TRACE_DEBUG_LINE") || !strcmp(str
, "DEBUG_LINE") || !strcmp(str
, "LINE")) {
290 return LTTNG_LOGLEVEL_DEBUG_LINE
;
291 } else if (!strcmp(str
, "TRACE_DEBUG") || !strcmp(str
, "DEBUG")) {
292 return LTTNG_LOGLEVEL_DEBUG
;
299 * Enabling event using the lttng API.
301 static int enable_events(char *session_name
)
303 int err
, ret
= CMD_SUCCESS
, warn
= 0;
304 unsigned int event_enabled
= 0;
305 char *event_name
, *channel_name
= NULL
;
306 struct lttng_event ev
;
307 struct lttng_domain dom
;
309 memset(&ev
, 0, sizeof(ev
));
310 memset(&dom
, 0, sizeof(dom
));
314 ERR("Filter not implement for kernel tracing yet");
320 /* Create lttng domain */
322 dom
.type
= LTTNG_DOMAIN_KERNEL
;
323 } else if (opt_userspace
) {
324 dom
.type
= LTTNG_DOMAIN_UST
;
326 ERR("Please specify a tracer (-k/--kernel or -u/--userspace)");
331 if (opt_channel_name
== NULL
) {
332 err
= asprintf(&channel_name
, DEFAULT_CHANNEL_NAME
);
338 channel_name
= opt_channel_name
;
341 handle
= lttng_create_handle(session_name
, &dom
);
342 if (handle
== NULL
) {
347 if (opt_enable_all
) {
348 /* Default setup for enable all */
350 ev
.type
= opt_event_type
;
352 /* kernel loglevels not implemented */
353 ev
.loglevel_type
= LTTNG_EVENT_LOGLEVEL_ALL
;
355 ev
.type
= LTTNG_EVENT_TRACEPOINT
;
356 strcpy(ev
.name
, "*");
357 ev
.loglevel_type
= opt_loglevel_type
;
359 ev
.loglevel
= loglevel_str_to_value(opt_loglevel
);
360 if (ev
.loglevel
== -1) {
361 ERR("Unknown loglevel %s", opt_loglevel
);
362 ret
= -LTTNG_ERR_INVALID
;
370 /* Reset flag before enabling a new event. */
373 ret
= lttng_enable_event(handle
, &ev
, channel_name
);
376 case LTTNG_ERR_KERN_EVENT_EXIST
:
377 WARN("Kernel events already enabled (channel %s, session %s)",
378 channel_name
, session_name
);
381 ERR("Events: %s (channel %s, session %s)",
382 lttng_strerror(ret
), channel_name
, session_name
);
389 switch (opt_event_type
) {
390 case LTTNG_EVENT_TRACEPOINT
:
392 MSG("All %s tracepoints are enabled in channel %s for loglevel %s",
393 opt_kernel
? "kernel" : "UST", channel_name
,
396 MSG("All %s tracepoints are enabled in channel %s",
397 opt_kernel
? "kernel" : "UST", channel_name
);
401 case LTTNG_EVENT_SYSCALL
:
403 MSG("All kernel system calls are enabled in channel %s",
407 case LTTNG_EVENT_ALL
:
409 MSG("All %s events are enabled in channel %s for loglevel %s",
410 opt_kernel
? "kernel" : "UST", channel_name
,
413 MSG("All %s events are enabled in channel %s",
414 opt_kernel
? "kernel" : "UST", channel_name
);
419 * We should not be here since lttng_enable_event should have
420 * failed on the event type.
424 if (opt_filter
&& event_enabled
) {
425 ret
= lttng_set_event_filter(handle
, ev
.name
, channel_name
,
428 fprintf(stderr
, "Ret filter: %d\n", ret
);
430 case LTTNG_ERR_FILTER_EXIST
:
431 WARN("Filter on events is already enabled"
432 " (channel %s, session %s)",
433 channel_name
, session_name
);
435 case LTTNG_ERR_FILTER_INVAL
:
436 case LTTNG_ERR_FILTER_NOMEM
:
437 ERR("%s", lttng_strerror(ret
));
439 ERR("Setting filter: '%s'", opt_filter
);
441 * The event was successfully enabled before so when
442 * failing to set a filter, disable the event. This has
443 * been discussed in bug #343 on why we do that.
445 err
= lttng_disable_event(handle
, ev
.name
, channel_name
);
447 ERR("Disabling all events after filter error: %s",
448 lttng_strerror(err
));
450 WARN("All events of channel %s have been disabled due "
451 "to a filter error", channel_name
);
457 MSG("Filter '%s' successfully set", opt_filter
);
463 /* Strip event list */
464 event_name
= strtok(opt_event_list
, ",");
465 while (event_name
!= NULL
) {
466 /* Copy name and type of the event */
467 strncpy(ev
.name
, event_name
, LTTNG_SYMBOL_NAME_LEN
);
468 ev
.name
[LTTNG_SYMBOL_NAME_LEN
- 1] = '\0';
469 ev
.type
= opt_event_type
;
471 /* Kernel tracer action */
473 DBG("Enabling kernel event %s for channel %s",
474 event_name
, channel_name
);
476 switch (opt_event_type
) {
477 case LTTNG_EVENT_ALL
: /* Default behavior is tracepoint */
478 ev
.type
= LTTNG_EVENT_TRACEPOINT
;
480 case LTTNG_EVENT_TRACEPOINT
:
482 case LTTNG_EVENT_PROBE
:
483 ret
= parse_probe_opts(&ev
, opt_probe
);
485 ERR("Unable to parse probe options");
490 case LTTNG_EVENT_FUNCTION
:
491 ret
= parse_probe_opts(&ev
, opt_function
);
493 ERR("Unable to parse function probe options");
498 case LTTNG_EVENT_FUNCTION_ENTRY
:
499 strncpy(ev
.attr
.ftrace
.symbol_name
, opt_function_entry_symbol
,
500 LTTNG_SYMBOL_NAME_LEN
);
501 ev
.attr
.ftrace
.symbol_name
[LTTNG_SYMBOL_NAME_LEN
- 1] = '\0';
503 case LTTNG_EVENT_SYSCALL
:
504 MSG("per-syscall selection not supported yet. Use \"-a\" "
505 "for all syscalls.");
512 MSG("Kernel loglevels are not supported.");
517 /* kernel loglevels not implemented */
518 ev
.loglevel_type
= LTTNG_EVENT_LOGLEVEL_ALL
;
519 } else if (opt_userspace
) { /* User-space tracer action */
521 if (opt_cmd_name
!= NULL
|| opt_pid
) {
522 MSG("Only supporting tracing all UST processes (-u) for now.");
528 DBG("Enabling UST event %s for channel %s, loglevel %s", event_name
,
529 channel_name
, opt_loglevel
? : "<all>");
531 switch (opt_event_type
) {
532 case LTTNG_EVENT_ALL
: /* Default behavior is tracepoint */
534 case LTTNG_EVENT_TRACEPOINT
:
535 /* Copy name and type of the event */
536 ev
.type
= LTTNG_EVENT_TRACEPOINT
;
537 strncpy(ev
.name
, event_name
, LTTNG_SYMBOL_NAME_LEN
);
538 ev
.name
[LTTNG_SYMBOL_NAME_LEN
- 1] = '\0';
540 case LTTNG_EVENT_PROBE
:
541 case LTTNG_EVENT_FUNCTION
:
542 case LTTNG_EVENT_FUNCTION_ENTRY
:
543 case LTTNG_EVENT_SYSCALL
:
545 ERR("Event type not available for user-space tracing");
550 ev
.loglevel_type
= opt_loglevel_type
;
552 ev
.loglevel
= loglevel_str_to_value(opt_loglevel
);
553 if (ev
.loglevel
== -1) {
554 ERR("Unknown loglevel %s", opt_loglevel
);
555 ret
= -LTTNG_ERR_INVALID
;
562 ERR("Please specify a tracer (-k/--kernel or -u/--userspace)");
567 /* Reset flag before enabling a new event. */
570 ret
= lttng_enable_event(handle
, &ev
, channel_name
);
572 /* Turn ret to positive value to handle the positive error code */
574 case LTTNG_ERR_KERN_EVENT_EXIST
:
575 WARN("Kernel event %s already enabled (channel %s, session %s)",
576 event_name
, channel_name
, session_name
);
579 ERR("Event %s: %s (channel %s, session %s)", event_name
,
580 lttng_strerror(ret
), channel_name
, session_name
);
585 MSG("%s event %s created in channel %s",
586 opt_kernel
? "kernel": "UST", event_name
, channel_name
);
589 if (opt_filter
&& event_enabled
) {
590 ret
= lttng_set_event_filter(handle
, ev
.name
, channel_name
,
594 case LTTNG_ERR_FILTER_EXIST
:
595 WARN("Filter on event %s is already enabled"
596 " (channel %s, session %s)",
597 event_name
, channel_name
, session_name
);
599 case LTTNG_ERR_FILTER_INVAL
:
600 case LTTNG_ERR_FILTER_NOMEM
:
601 ERR("%s", lttng_strerror(ret
));
603 ERR("Setting filter for event %s: '%s'", ev
.name
,
606 * The event was successfully enabled before so when
607 * failing to set a filter, disable the event. This has
608 * been discussed in bug #343 on why we do that.
610 err
= lttng_disable_event(handle
, ev
.name
, channel_name
);
612 ERR("Disabling event %s after filter error: %s",
613 ev
.name
, lttng_strerror(err
));
615 WARN("Event %s of channel %s has been disabled due "
616 "to a filter error", ev
.name
, channel_name
);
622 MSG("Filter '%s' successfully set", opt_filter
);
627 event_name
= strtok(NULL
, ",");
635 if (opt_channel_name
== NULL
) {
638 lttng_destroy_handle(handle
);
644 * Add event to trace session
646 int cmd_enable_events(int argc
, const char **argv
)
648 int opt
, ret
= CMD_SUCCESS
;
649 static poptContext pc
;
650 char *session_name
= NULL
;
652 pc
= poptGetContext(NULL
, argc
, argv
, long_options
, 0);
653 poptReadDefaultConfig(pc
, 0);
655 /* Default event type */
656 opt_event_type
= LTTNG_EVENT_ALL
;
658 while ((opt
= poptGetNextOpt(pc
)) != -1) {
664 opt_event_type
= LTTNG_EVENT_TRACEPOINT
;
667 opt_event_type
= LTTNG_EVENT_PROBE
;
670 opt_event_type
= LTTNG_EVENT_FUNCTION
;
672 case OPT_FUNCTION_ENTRY
:
673 opt_event_type
= LTTNG_EVENT_FUNCTION_ENTRY
;
676 opt_event_type
= LTTNG_EVENT_SYSCALL
;
682 opt_loglevel_type
= LTTNG_EVENT_LOGLEVEL_RANGE
;
683 opt_loglevel
= poptGetOptArg(pc
);
685 case OPT_LOGLEVEL_ONLY
:
686 opt_loglevel_type
= LTTNG_EVENT_LOGLEVEL_SINGLE
;
687 opt_loglevel
= poptGetOptArg(pc
);
689 case OPT_LIST_OPTIONS
:
690 list_cmd_options(stdout
, long_options
);
701 opt_event_list
= (char*) poptGetArg(pc
);
702 if (opt_event_list
== NULL
&& opt_enable_all
== 0) {
703 ERR("Missing event name(s).\n");
709 if (!opt_session_name
) {
710 session_name
= get_session_name();
711 if (session_name
== NULL
) {
716 session_name
= opt_session_name
;
719 ret
= enable_events(session_name
);
722 if (opt_session_name
== NULL
) {