Commit | Line | Data |
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f3ed775e DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
82a3637f DG |
6 | * as published by the Free Software Foundation; only version 2 |
7 | * of the License. | |
f3ed775e DG |
8 | * |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | */ | |
18 | ||
19 | #define _GNU_SOURCE | |
20 | #include <popt.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <sys/stat.h> | |
25 | #include <sys/types.h> | |
26 | #include <unistd.h> | |
5a0de755 | 27 | #include <inttypes.h> |
8f0d098b | 28 | #include <ctype.h> |
f3ed775e | 29 | |
c399183f | 30 | #include "../command.h" |
f3ed775e DG |
31 | |
32 | static char *opt_event_list; | |
33 | static int opt_event_type; | |
6181537c | 34 | static int opt_kernel; |
5440dc42 | 35 | static char *opt_session_name; |
f3ed775e DG |
36 | static int opt_userspace; |
37 | static int opt_enable_all; | |
cf0e5467 | 38 | static char *opt_probe; |
8f0d098b MD |
39 | static char *opt_function; |
40 | static char *opt_function_entry_symbol; | |
f3ed775e | 41 | static char *opt_channel_name; |
d78d6610 DG |
42 | #if 0 |
43 | /* Not implemented yet */ | |
44 | static char *opt_cmd_name; | |
45 | static pid_t opt_pid; | |
46 | #endif | |
f3ed775e DG |
47 | |
48 | enum { | |
49 | OPT_HELP = 1, | |
f3ed775e | 50 | OPT_TRACEPOINT, |
cf0e5467 | 51 | OPT_PROBE, |
f3ed775e | 52 | OPT_FUNCTION, |
8f0d098b | 53 | OPT_FUNCTION_ENTRY, |
a54bd42d | 54 | OPT_SYSCALL, |
eeac7d46 | 55 | OPT_USERSPACE, |
13dce3b7 | 56 | OPT_TRACEPOINT_LOGLEVEL, |
f3ed775e DG |
57 | }; |
58 | ||
cd80958d DG |
59 | static struct lttng_handle *handle; |
60 | ||
f3ed775e DG |
61 | static struct poptOption long_options[] = { |
62 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
63 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 64 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e14f64a8 | 65 | {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0}, |
f3ed775e DG |
66 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
67 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, | |
d78d6610 DG |
68 | #if 0 |
69 | /* Not implemented yet */ | |
40e9d5d3 | 70 | {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0}, |
f3ed775e | 71 | {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, |
d78d6610 DG |
72 | #else |
73 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, | |
74 | #endif | |
f3ed775e | 75 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0}, |
7ebae521 | 76 | {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0}, |
40e9d5d3 | 77 | {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0}, |
b213d387 MD |
78 | #if 0 |
79 | /* | |
80 | * Currently removed from lttng kernel tracer. Removed from | |
81 | * lttng UI to discourage its use. | |
82 | */ | |
40e9d5d3 | 83 | {"function:entry", 0, POPT_ARG_STRING, &opt_function_entry_symbol, OPT_FUNCTION_ENTRY, 0, 0}, |
b213d387 | 84 | #endif |
7ebae521 | 85 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0}, |
13dce3b7 | 86 | {"loglevel", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT_LOGLEVEL, 0, 0}, |
f3ed775e DG |
87 | {0, 0, 0, 0, 0, 0, 0} |
88 | }; | |
89 | ||
90 | /* | |
91 | * usage | |
92 | */ | |
93 | static void usage(FILE *ofp) | |
94 | { | |
95 | fprintf(ofp, "usage: lttng enable-event NAME[,NAME2,...] [options] [event_options]\n"); | |
96 | fprintf(ofp, "\n"); | |
97 | fprintf(ofp, " -h, --help Show this help\n"); | |
5440dc42 | 98 | fprintf(ofp, " -s, --session Apply on session name\n"); |
f3ed775e | 99 | fprintf(ofp, " -c, --channel Apply on this channel\n"); |
e14f64a8 | 100 | fprintf(ofp, " -a, --all Enable all tracepoints\n"); |
f3ed775e | 101 | fprintf(ofp, " -k, --kernel Apply for the kernel tracer\n"); |
d78d6610 | 102 | #if 0 |
f3ed775e | 103 | fprintf(ofp, " -u, --userspace [CMD] Apply for the user-space tracer\n"); |
e14f64a8 DG |
104 | fprintf(ofp, " If no CMD, the domain used is UST global\n"); |
105 | fprintf(ofp, " or else the domain is UST EXEC_NAME\n"); | |
106 | fprintf(ofp, " -p, --pid PID If -u, apply to specific PID (domain: UST PID)\n"); | |
d78d6610 DG |
107 | #else |
108 | fprintf(ofp, " -u, --userspace Apply for the user-space tracer\n"); | |
109 | #endif | |
f3ed775e DG |
110 | fprintf(ofp, "\n"); |
111 | fprintf(ofp, "Event options:\n"); | |
112 | fprintf(ofp, " --tracepoint Tracepoint event (default)\n"); | |
be49af1e MD |
113 | fprintf(ofp, " - userspace tracer supports wildcards at end of string.\n"); |
114 | fprintf(ofp, " Don't forget to quote to deal with bash expansion.\n"); | |
115 | fprintf(ofp, " e.g.:\n"); | |
116 | fprintf(ofp, " \"*\"\n"); | |
117 | fprintf(ofp, " \"app_component:na*\"\n"); | |
13dce3b7 | 118 | fprintf(ofp, " --loglevel Tracepoint loglevel\n"); |
8f0d098b | 119 | fprintf(ofp, " --probe [addr | symbol | symbol+offset]\n"); |
cf0e5467 MD |
120 | fprintf(ofp, " Dynamic probe.\n"); |
121 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
122 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
8f0d098b MD |
123 | fprintf(ofp, " --function [addr | symbol | symbol+offset]\n"); |
124 | fprintf(ofp, " Dynamic function entry/return probe.\n"); | |
125 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
126 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
b213d387 | 127 | #if 0 |
8f0d098b MD |
128 | fprintf(ofp, " --function:entry symbol\n"); |
129 | fprintf(ofp, " Function tracer event\n"); | |
b213d387 | 130 | #endif |
a54bd42d | 131 | fprintf(ofp, " --syscall System call event\n"); |
f3ed775e DG |
132 | fprintf(ofp, "\n"); |
133 | } | |
134 | ||
0d63dd19 | 135 | /* |
6181537c | 136 | * Parse probe options. |
0d63dd19 | 137 | */ |
cf0e5467 | 138 | static int parse_probe_opts(struct lttng_event *ev, char *opt) |
0d63dd19 DG |
139 | { |
140 | int ret; | |
8ff0bbd0 | 141 | char s_hex[19]; |
0d63dd19 DG |
142 | char name[LTTNG_SYMBOL_NAME_LEN]; |
143 | ||
144 | if (opt == NULL) { | |
145 | ret = -1; | |
8f0d098b | 146 | goto end; |
0d63dd19 DG |
147 | } |
148 | ||
149 | /* Check for symbol+offset */ | |
8ff0bbd0 | 150 | ret = sscanf(opt, "%[^'+']+%s", name, s_hex); |
0d63dd19 | 151 | if (ret == 2) { |
7d29a247 | 152 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 153 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
cf0e5467 | 154 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
8ff0bbd0 DG |
155 | if (strlen(s_hex) == 0) { |
156 | ERR("Invalid probe offset %s", s_hex); | |
0d63dd19 | 157 | ret = -1; |
8f0d098b | 158 | goto end; |
0d63dd19 | 159 | } |
8ff0bbd0 | 160 | ev->attr.probe.offset = strtoul(s_hex, NULL, 0); |
cf0e5467 | 161 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); |
3000dc78 | 162 | ev->attr.probe.addr = 0; |
8f0d098b MD |
163 | goto end; |
164 | } | |
165 | ||
166 | /* Check for symbol */ | |
167 | if (isalpha(name[0])) { | |
168 | ret = sscanf(opt, "%s", name); | |
169 | if (ret == 1) { | |
170 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 171 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
8f0d098b MD |
172 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
173 | ev->attr.probe.offset = 0; | |
174 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); | |
175 | ev->attr.probe.addr = 0; | |
176 | goto end; | |
177 | } | |
0d63dd19 DG |
178 | } |
179 | ||
180 | /* Check for address */ | |
8ff0bbd0 | 181 | ret = sscanf(opt, "%s", s_hex); |
0d63dd19 | 182 | if (ret > 0) { |
8ff0bbd0 DG |
183 | if (strlen(s_hex) == 0) { |
184 | ERR("Invalid probe address %s", s_hex); | |
0d63dd19 | 185 | ret = -1; |
8f0d098b | 186 | goto end; |
0d63dd19 | 187 | } |
8ff0bbd0 | 188 | ev->attr.probe.addr = strtoul(s_hex, NULL, 0); |
cf0e5467 | 189 | DBG("probe addr %" PRIu64, ev->attr.probe.addr); |
3000dc78 DG |
190 | ev->attr.probe.offset = 0; |
191 | memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN); | |
8f0d098b | 192 | goto end; |
0d63dd19 DG |
193 | } |
194 | ||
195 | /* No match */ | |
196 | ret = -1; | |
197 | ||
8f0d098b | 198 | end: |
0d63dd19 DG |
199 | return ret; |
200 | } | |
201 | ||
f3ed775e | 202 | /* |
6181537c | 203 | * Enabling event using the lttng API. |
f3ed775e | 204 | */ |
cd80958d | 205 | static int enable_events(char *session_name) |
f3ed775e DG |
206 | { |
207 | int err, ret = CMD_SUCCESS; | |
b73d0b29 | 208 | char *event_name, *channel_name = NULL; |
f3ed775e | 209 | struct lttng_event ev; |
7d29a247 | 210 | struct lttng_domain dom; |
f3ed775e | 211 | |
f3ed775e DG |
212 | if (opt_channel_name == NULL) { |
213 | err = asprintf(&channel_name, DEFAULT_CHANNEL_NAME); | |
214 | if (err < 0) { | |
215 | ret = CMD_FATAL; | |
216 | goto error; | |
217 | } | |
218 | } else { | |
219 | channel_name = opt_channel_name; | |
220 | } | |
221 | ||
2bdd86d4 | 222 | if (opt_kernel && opt_userspace) { |
e14f64a8 | 223 | ERR("Can't use -k/--kernel and -u/--userspace together"); |
2bdd86d4 MD |
224 | ret = CMD_FATAL; |
225 | goto error; | |
226 | } | |
6181537c | 227 | |
7d29a247 DG |
228 | /* Create lttng domain */ |
229 | if (opt_kernel) { | |
230 | dom.type = LTTNG_DOMAIN_KERNEL; | |
d78d6610 | 231 | } else if (opt_userspace) { |
2bdd86d4 | 232 | dom.type = LTTNG_DOMAIN_UST; |
6181537c | 233 | } else { |
e14f64a8 | 234 | ERR("Please specify a tracer (-k/--kernel or -u/--userspace)"); |
1ab1ea0b | 235 | ret = CMD_UNDEFINED; |
6181537c | 236 | goto error; |
2bdd86d4 | 237 | } |
7d29a247 | 238 | |
cd80958d DG |
239 | handle = lttng_create_handle(session_name, &dom); |
240 | if (handle == NULL) { | |
241 | ret = -1; | |
242 | goto error; | |
243 | } | |
1aef21b6 | 244 | |
cd80958d | 245 | if (opt_enable_all) { |
8c9ae521 | 246 | /* Default setup for enable all */ |
75e8c5ab MD |
247 | |
248 | if (opt_kernel) { | |
249 | ev.type = opt_event_type; | |
250 | ev.name[0] = '\0'; | |
251 | } else { | |
252 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
253 | strcpy(ev.name, "*"); | |
254 | } | |
8c9ae521 DG |
255 | |
256 | ret = lttng_enable_event(handle, &ev, channel_name); | |
257 | if (ret < 0) { | |
258 | goto error; | |
259 | } | |
260 | ||
0133c199 MD |
261 | switch (opt_event_type) { |
262 | case LTTNG_EVENT_TRACEPOINT: | |
2bdd86d4 MD |
263 | MSG("All %s tracepoints are enabled in channel %s", |
264 | opt_kernel ? "kernel" : "UST", channel_name); | |
0133c199 | 265 | break; |
a54bd42d | 266 | case LTTNG_EVENT_SYSCALL: |
0133c199 | 267 | if (opt_kernel) { |
8c9ae521 DG |
268 | MSG("All kernel system calls are enabled in channel %s", |
269 | channel_name); | |
c93d9daf | 270 | } |
0133c199 | 271 | break; |
7a3d1328 | 272 | case LTTNG_EVENT_ALL: |
2bdd86d4 MD |
273 | MSG("All %s events are enabled in channel %s", |
274 | opt_kernel ? "kernel" : "UST", channel_name); | |
7a3d1328 | 275 | break; |
0133c199 | 276 | default: |
8c9ae521 | 277 | /* |
6181537c DG |
278 | * We should not be here since lttng_enable_event should have |
279 | * failed on the event type. | |
8c9ae521 | 280 | */ |
f3ed775e DG |
281 | goto error; |
282 | } | |
8c9ae521 | 283 | goto end; |
f3ed775e DG |
284 | } |
285 | ||
286 | /* Strip event list */ | |
287 | event_name = strtok(opt_event_list, ","); | |
288 | while (event_name != NULL) { | |
6181537c DG |
289 | /* Copy name and type of the event */ |
290 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
291 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
292 | ev.type = opt_event_type; | |
293 | ||
f3ed775e DG |
294 | /* Kernel tracer action */ |
295 | if (opt_kernel) { | |
296 | DBG("Enabling kernel event %s for channel %s", | |
297 | event_name, channel_name); | |
f3ed775e DG |
298 | |
299 | switch (opt_event_type) { | |
7a3d1328 MD |
300 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ |
301 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
302 | /* Fall-through */ | |
e6ddca71 | 303 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 304 | break; |
7d29a247 | 305 | case LTTNG_EVENT_PROBE: |
cf0e5467 | 306 | ret = parse_probe_opts(&ev, opt_probe); |
0d63dd19 | 307 | if (ret < 0) { |
cf0e5467 | 308 | ERR("Unable to parse probe options"); |
0d63dd19 DG |
309 | ret = 0; |
310 | goto error; | |
311 | } | |
f3ed775e DG |
312 | break; |
313 | case LTTNG_EVENT_FUNCTION: | |
8f0d098b MD |
314 | ret = parse_probe_opts(&ev, opt_function); |
315 | if (ret < 0) { | |
316 | ERR("Unable to parse function probe options"); | |
317 | ret = 0; | |
318 | goto error; | |
319 | } | |
320 | break; | |
321 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
6181537c DG |
322 | strncpy(ev.attr.ftrace.symbol_name, opt_function_entry_symbol, |
323 | LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 324 | ev.attr.ftrace.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
f3ed775e | 325 | break; |
a54bd42d | 326 | case LTTNG_EVENT_SYSCALL: |
6181537c DG |
327 | MSG("per-syscall selection not supported yet. Use \"-a\" " |
328 | "for all syscalls."); | |
f3ed775e | 329 | default: |
1ab1ea0b | 330 | ret = CMD_UNDEFINED; |
f3ed775e DG |
331 | goto error; |
332 | } | |
f3ed775e | 333 | } else if (opt_userspace) { /* User-space tracer action */ |
d78d6610 | 334 | #if 0 |
e14f64a8 DG |
335 | if (opt_cmd_name != NULL || opt_pid) { |
336 | MSG("Only supporting tracing all UST processes (-u) for now."); | |
1ab1ea0b | 337 | ret = CMD_UNDEFINED; |
2bdd86d4 MD |
338 | goto error; |
339 | } | |
d78d6610 | 340 | #endif |
6181537c DG |
341 | |
342 | DBG("Enabling UST event %s for channel %s", event_name, | |
343 | channel_name); | |
2bdd86d4 MD |
344 | |
345 | switch (opt_event_type) { | |
346 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
347 | /* Fall-through */ |
348 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e MD |
349 | /* Copy name and type of the event */ |
350 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
351 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
352 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 | 353 | break; |
13dce3b7 | 354 | case LTTNG_EVENT_TRACEPOINT_LOGLEVEL: |
e4baff1e | 355 | /* Copy name and type of the event */ |
13dce3b7 | 356 | ev.type = LTTNG_EVENT_TRACEPOINT_LOGLEVEL; |
e4baff1e MD |
357 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); |
358 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
13dce3b7 | 359 | break; |
2bdd86d4 MD |
360 | case LTTNG_EVENT_PROBE: |
361 | case LTTNG_EVENT_FUNCTION: | |
362 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
363 | case LTTNG_EVENT_SYSCALL: | |
364 | default: | |
1ab1ea0b | 365 | ret = CMD_UNDEFINED; |
2bdd86d4 MD |
366 | goto error; |
367 | } | |
f3ed775e | 368 | } else { |
e14f64a8 | 369 | ERR("Please specify a tracer (-k/--kernel or -u/--userspace)"); |
f3ed775e DG |
370 | goto error; |
371 | } | |
372 | ||
6181537c DG |
373 | ret = lttng_enable_event(handle, &ev, channel_name); |
374 | if (ret == 0) { | |
375 | MSG("%s event %s created in channel %s", | |
376 | opt_kernel ? "kernel": "UST", event_name, channel_name); | |
377 | } | |
378 | ||
f3ed775e DG |
379 | /* Next event */ |
380 | event_name = strtok(NULL, ","); | |
381 | } | |
382 | ||
8c9ae521 | 383 | end: |
f3ed775e | 384 | error: |
b73d0b29 MD |
385 | if (opt_channel_name == NULL) { |
386 | free(channel_name); | |
387 | } | |
cd80958d DG |
388 | lttng_destroy_handle(handle); |
389 | ||
f3ed775e DG |
390 | return ret; |
391 | } | |
392 | ||
393 | /* | |
6181537c | 394 | * Add event to trace session |
f3ed775e DG |
395 | */ |
396 | int cmd_enable_events(int argc, const char **argv) | |
397 | { | |
398 | int opt, ret; | |
399 | static poptContext pc; | |
cd80958d | 400 | char *session_name = NULL; |
f3ed775e DG |
401 | |
402 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
403 | poptReadDefaultConfig(pc, 0); | |
404 | ||
405 | /* Default event type */ | |
7a3d1328 | 406 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
407 | |
408 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
409 | switch (opt) { | |
410 | case OPT_HELP: | |
411 | usage(stderr); | |
412 | ret = CMD_SUCCESS; | |
413 | goto end; | |
f3ed775e | 414 | case OPT_TRACEPOINT: |
e6ddca71 | 415 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 416 | break; |
cf0e5467 | 417 | case OPT_PROBE: |
7d29a247 | 418 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e DG |
419 | break; |
420 | case OPT_FUNCTION: | |
421 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b MD |
422 | break; |
423 | case OPT_FUNCTION_ENTRY: | |
424 | opt_event_type = LTTNG_EVENT_FUNCTION_ENTRY; | |
f3ed775e | 425 | break; |
a54bd42d MD |
426 | case OPT_SYSCALL: |
427 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 428 | break; |
eeac7d46 MD |
429 | case OPT_USERSPACE: |
430 | opt_userspace = 1; | |
eeac7d46 | 431 | break; |
13dce3b7 MD |
432 | case OPT_TRACEPOINT_LOGLEVEL: |
433 | opt_event_type = LTTNG_EVENT_TRACEPOINT_LOGLEVEL; | |
434 | break; | |
f3ed775e DG |
435 | default: |
436 | usage(stderr); | |
437 | ret = CMD_UNDEFINED; | |
438 | goto end; | |
439 | } | |
440 | } | |
441 | ||
442 | opt_event_list = (char*) poptGetArg(pc); | |
443 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
444 | ERR("Missing event name(s).\n"); | |
445 | usage(stderr); | |
446 | ret = CMD_SUCCESS; | |
447 | goto end; | |
448 | } | |
449 | ||
cd80958d DG |
450 | if (!opt_session_name) { |
451 | session_name = get_session_name(); | |
452 | if (session_name == NULL) { | |
453 | ret = -1; | |
454 | goto end; | |
455 | } | |
456 | } else { | |
457 | session_name = opt_session_name; | |
458 | } | |
459 | ||
460 | ret = enable_events(session_name); | |
f3ed775e DG |
461 | |
462 | end: | |
cd80958d DG |
463 | if (opt_session_name == NULL) { |
464 | free(session_name); | |
465 | } | |
466 | ||
f3ed775e DG |
467 | return ret; |
468 | } |