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; | |
0cda4f28 MD |
34 | static const char *opt_loglevel; |
35 | static int opt_loglevel_type; | |
6181537c | 36 | static int opt_kernel; |
5440dc42 | 37 | static char *opt_session_name; |
f3ed775e DG |
38 | static int opt_userspace; |
39 | static int opt_enable_all; | |
cf0e5467 | 40 | static char *opt_probe; |
8f0d098b MD |
41 | static char *opt_function; |
42 | static char *opt_function_entry_symbol; | |
f3ed775e | 43 | static char *opt_channel_name; |
d78d6610 DG |
44 | #if 0 |
45 | /* Not implemented yet */ | |
46 | static char *opt_cmd_name; | |
47 | static pid_t opt_pid; | |
48 | #endif | |
f3ed775e DG |
49 | |
50 | enum { | |
51 | OPT_HELP = 1, | |
f3ed775e | 52 | OPT_TRACEPOINT, |
cf0e5467 | 53 | OPT_PROBE, |
f3ed775e | 54 | OPT_FUNCTION, |
8f0d098b | 55 | OPT_FUNCTION_ENTRY, |
a54bd42d | 56 | OPT_SYSCALL, |
eeac7d46 | 57 | OPT_USERSPACE, |
0cda4f28 MD |
58 | OPT_LOGLEVEL, |
59 | OPT_LOGLEVEL_ONLY, | |
679b4943 | 60 | OPT_LIST_OPTIONS, |
f3ed775e DG |
61 | }; |
62 | ||
cd80958d DG |
63 | static struct lttng_handle *handle; |
64 | ||
f3ed775e DG |
65 | static struct poptOption long_options[] = { |
66 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
67 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 68 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e14f64a8 | 69 | {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0}, |
f3ed775e DG |
70 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
71 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, | |
d78d6610 DG |
72 | #if 0 |
73 | /* Not implemented yet */ | |
40e9d5d3 | 74 | {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0}, |
f3ed775e | 75 | {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, |
d78d6610 DG |
76 | #else |
77 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, | |
78 | #endif | |
f3ed775e | 79 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0}, |
7ebae521 | 80 | {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0}, |
40e9d5d3 | 81 | {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0}, |
b213d387 MD |
82 | #if 0 |
83 | /* | |
84 | * Currently removed from lttng kernel tracer. Removed from | |
85 | * lttng UI to discourage its use. | |
86 | */ | |
40e9d5d3 | 87 | {"function:entry", 0, POPT_ARG_STRING, &opt_function_entry_symbol, OPT_FUNCTION_ENTRY, 0, 0}, |
b213d387 | 88 | #endif |
7ebae521 | 89 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0}, |
0cda4f28 MD |
90 | {"loglevel", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL, 0, 0}, |
91 | {"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0}, | |
679b4943 | 92 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
f3ed775e DG |
93 | {0, 0, 0, 0, 0, 0, 0} |
94 | }; | |
95 | ||
96 | /* | |
97 | * usage | |
98 | */ | |
99 | static void usage(FILE *ofp) | |
100 | { | |
101 | fprintf(ofp, "usage: lttng enable-event NAME[,NAME2,...] [options] [event_options]\n"); | |
102 | fprintf(ofp, "\n"); | |
103 | fprintf(ofp, " -h, --help Show this help\n"); | |
679b4943 | 104 | fprintf(ofp, " --list-options Simple listing of options\n"); |
27221701 DG |
105 | fprintf(ofp, " -s, --session Apply to session name\n"); |
106 | fprintf(ofp, " -c, --channel Apply to this channel\n"); | |
e14f64a8 | 107 | fprintf(ofp, " -a, --all Enable all tracepoints\n"); |
f3ed775e | 108 | fprintf(ofp, " -k, --kernel Apply for the kernel tracer\n"); |
d78d6610 | 109 | #if 0 |
27221701 | 110 | fprintf(ofp, " -u, --userspace [CMD] Apply to the user-space tracer\n"); |
e14f64a8 DG |
111 | fprintf(ofp, " If no CMD, the domain used is UST global\n"); |
112 | fprintf(ofp, " or else the domain is UST EXEC_NAME\n"); | |
113 | fprintf(ofp, " -p, --pid PID If -u, apply to specific PID (domain: UST PID)\n"); | |
d78d6610 | 114 | #else |
27221701 | 115 | fprintf(ofp, " -u, --userspace Apply to the user-space tracer\n"); |
d78d6610 | 116 | #endif |
f3ed775e DG |
117 | fprintf(ofp, "\n"); |
118 | fprintf(ofp, "Event options:\n"); | |
119 | fprintf(ofp, " --tracepoint Tracepoint event (default)\n"); | |
be49af1e MD |
120 | fprintf(ofp, " - userspace tracer supports wildcards at end of string.\n"); |
121 | fprintf(ofp, " Don't forget to quote to deal with bash expansion.\n"); | |
122 | fprintf(ofp, " e.g.:\n"); | |
123 | fprintf(ofp, " \"*\"\n"); | |
124 | fprintf(ofp, " \"app_component:na*\"\n"); | |
8f0d098b | 125 | fprintf(ofp, " --probe [addr | symbol | symbol+offset]\n"); |
cf0e5467 MD |
126 | fprintf(ofp, " Dynamic probe.\n"); |
127 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
128 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
8f0d098b MD |
129 | fprintf(ofp, " --function [addr | symbol | symbol+offset]\n"); |
130 | fprintf(ofp, " Dynamic function entry/return probe.\n"); | |
131 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
132 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
b213d387 | 133 | #if 0 |
8f0d098b MD |
134 | fprintf(ofp, " --function:entry symbol\n"); |
135 | fprintf(ofp, " Function tracer event\n"); | |
b213d387 | 136 | #endif |
a54bd42d | 137 | fprintf(ofp, " --syscall System call event\n"); |
f3ed775e | 138 | fprintf(ofp, "\n"); |
300b8fd5 MD |
139 | fprintf(ofp, " --loglevel name\n"); |
140 | fprintf(ofp, " Tracepoint loglevel range from 0 to loglevel\n"); | |
141 | fprintf(ofp, " --loglevel-only name\n"); | |
142 | fprintf(ofp, " Tracepoint loglevel (only this loglevel)\n"); | |
143 | fprintf(ofp, "\n"); | |
0c8477c8 MD |
144 | fprintf(ofp, " The loglevel or loglevel-only options should be\n"); |
145 | fprintf(ofp, " combined with a tracepoint name or tracepoint\n"); | |
146 | fprintf(ofp, " wildcard.\n"); | |
147 | fprintf(ofp, " Available loglevels:\n"); | |
148 | fprintf(ofp, " (higher value is more verbose)\n"); | |
300b8fd5 MD |
149 | fprintf(ofp, " TRACE_EMERG = 0\n"); |
150 | fprintf(ofp, " TRACE_ALERT = 1\n"); | |
151 | fprintf(ofp, " TRACE_CRIT = 2\n"); | |
152 | fprintf(ofp, " TRACE_ERR = 3\n"); | |
153 | fprintf(ofp, " TRACE_WARNING = 4\n"); | |
154 | fprintf(ofp, " TRACE_NOTICE = 5\n"); | |
155 | fprintf(ofp, " TRACE_INFO = 6\n"); | |
156 | fprintf(ofp, " TRACE_SYSTEM = 7\n"); | |
0c8477c8 MD |
157 | fprintf(ofp, " TRACE_PROGRAM = 8\n"); |
158 | fprintf(ofp, " TRACE_PROCESS = 9\n"); | |
159 | fprintf(ofp, " TRACE_MODULE = 10\n"); | |
160 | fprintf(ofp, " TRACE_UNIT = 11\n"); | |
161 | fprintf(ofp, " TRACE_FUNCTION = 12\n"); | |
162 | fprintf(ofp, " TRACE_DEFAULT = 13\n"); | |
163 | fprintf(ofp, " TRACE_VERBOSE = 14\n"); | |
300b8fd5 MD |
164 | fprintf(ofp, " TRACE_DEBUG = 15\n"); |
165 | fprintf(ofp, "\n"); | |
f3ed775e DG |
166 | } |
167 | ||
0d63dd19 | 168 | /* |
6181537c | 169 | * Parse probe options. |
0d63dd19 | 170 | */ |
cf0e5467 | 171 | static int parse_probe_opts(struct lttng_event *ev, char *opt) |
0d63dd19 DG |
172 | { |
173 | int ret; | |
8ff0bbd0 | 174 | char s_hex[19]; |
0d63dd19 DG |
175 | char name[LTTNG_SYMBOL_NAME_LEN]; |
176 | ||
177 | if (opt == NULL) { | |
178 | ret = -1; | |
8f0d098b | 179 | goto end; |
0d63dd19 DG |
180 | } |
181 | ||
182 | /* Check for symbol+offset */ | |
8ff0bbd0 | 183 | ret = sscanf(opt, "%[^'+']+%s", name, s_hex); |
0d63dd19 | 184 | if (ret == 2) { |
7d29a247 | 185 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 186 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
cf0e5467 | 187 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
8ff0bbd0 DG |
188 | if (strlen(s_hex) == 0) { |
189 | ERR("Invalid probe offset %s", s_hex); | |
0d63dd19 | 190 | ret = -1; |
8f0d098b | 191 | goto end; |
0d63dd19 | 192 | } |
8ff0bbd0 | 193 | ev->attr.probe.offset = strtoul(s_hex, NULL, 0); |
cf0e5467 | 194 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); |
3000dc78 | 195 | ev->attr.probe.addr = 0; |
8f0d098b MD |
196 | goto end; |
197 | } | |
198 | ||
199 | /* Check for symbol */ | |
200 | if (isalpha(name[0])) { | |
201 | ret = sscanf(opt, "%s", name); | |
202 | if (ret == 1) { | |
203 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 204 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
8f0d098b MD |
205 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
206 | ev->attr.probe.offset = 0; | |
207 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); | |
208 | ev->attr.probe.addr = 0; | |
209 | goto end; | |
210 | } | |
0d63dd19 DG |
211 | } |
212 | ||
213 | /* Check for address */ | |
8ff0bbd0 | 214 | ret = sscanf(opt, "%s", s_hex); |
0d63dd19 | 215 | if (ret > 0) { |
8ff0bbd0 DG |
216 | if (strlen(s_hex) == 0) { |
217 | ERR("Invalid probe address %s", s_hex); | |
0d63dd19 | 218 | ret = -1; |
8f0d098b | 219 | goto end; |
0d63dd19 | 220 | } |
8ff0bbd0 | 221 | ev->attr.probe.addr = strtoul(s_hex, NULL, 0); |
cf0e5467 | 222 | DBG("probe addr %" PRIu64, ev->attr.probe.addr); |
3000dc78 DG |
223 | ev->attr.probe.offset = 0; |
224 | memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN); | |
8f0d098b | 225 | goto end; |
0d63dd19 DG |
226 | } |
227 | ||
228 | /* No match */ | |
229 | ret = -1; | |
230 | ||
8f0d098b | 231 | end: |
0d63dd19 DG |
232 | return ret; |
233 | } | |
234 | ||
8005f29a | 235 | /* |
0c8477c8 | 236 | * Maps loglevel from string to value |
8005f29a MD |
237 | */ |
238 | static | |
239 | int loglevel_str_to_value(const char *str) | |
240 | { | |
241 | if (!strcmp(str, "TRACE_EMERG")) { | |
242 | return 0; | |
243 | } else if (!strcmp(str, "TRACE_ALERT")) { | |
244 | return 1; | |
245 | } else if (!strcmp(str, "TRACE_CRIT")) { | |
246 | return 2; | |
247 | } else if (!strcmp(str, "TRACE_ERR")) { | |
248 | return 3; | |
249 | } else if (!strcmp(str, "TRACE_WARNING")) { | |
250 | return 4; | |
251 | } else if (!strcmp(str, "TRACE_NOTICE")) { | |
252 | return 5; | |
253 | } else if (!strcmp(str, "TRACE_INFO")) { | |
254 | return 6; | |
255 | } else if (!strcmp(str, "TRACE_SYSTEM")) { | |
256 | return 7; | |
0c8477c8 | 257 | } else if (!strcmp(str, "TRACE_PROGRAM")) { |
8005f29a | 258 | return 8; |
0c8477c8 | 259 | } else if (!strcmp(str, "TRACE_PROCESS")) { |
8005f29a | 260 | return 9; |
0c8477c8 | 261 | } else if (!strcmp(str, "TRACE_MODULE")) { |
8005f29a | 262 | return 10; |
0c8477c8 | 263 | } else if (!strcmp(str, "TRACE_UNIT")) { |
8005f29a | 264 | return 11; |
8005f29a | 265 | } else if (!strcmp(str, "TRACE_FUNCTION")) { |
0c8477c8 MD |
266 | return 12; |
267 | } else if (!strcmp(str, "TRACE_DEFAULT")) { | |
8005f29a | 268 | return 13; |
0c8477c8 | 269 | } else if (!strcmp(str, "TRACE_VERBOSE")) { |
8005f29a MD |
270 | return 14; |
271 | } else if (!strcmp(str, "TRACE_DEBUG")) { | |
272 | return 15; | |
273 | } else { | |
274 | return -1; | |
275 | } | |
276 | } | |
277 | ||
f3ed775e | 278 | /* |
6181537c | 279 | * Enabling event using the lttng API. |
f3ed775e | 280 | */ |
cd80958d | 281 | static int enable_events(char *session_name) |
f3ed775e | 282 | { |
ae856491 | 283 | int err, ret = CMD_SUCCESS, warn = 0; |
b73d0b29 | 284 | char *event_name, *channel_name = NULL; |
f3ed775e | 285 | struct lttng_event ev; |
7d29a247 | 286 | struct lttng_domain dom; |
f3ed775e | 287 | |
441c16a7 MD |
288 | memset(&ev, 0, sizeof(ev)); |
289 | memset(&dom, 0, sizeof(dom)); | |
290 | ||
7d29a247 DG |
291 | /* Create lttng domain */ |
292 | if (opt_kernel) { | |
293 | dom.type = LTTNG_DOMAIN_KERNEL; | |
d78d6610 | 294 | } else if (opt_userspace) { |
2bdd86d4 | 295 | dom.type = LTTNG_DOMAIN_UST; |
6181537c | 296 | } else { |
e14f64a8 | 297 | ERR("Please specify a tracer (-k/--kernel or -u/--userspace)"); |
d16c1a4c | 298 | ret = CMD_ERROR; |
6181537c | 299 | goto error; |
2bdd86d4 | 300 | } |
7d29a247 | 301 | |
ae856491 DG |
302 | if (opt_channel_name == NULL) { |
303 | err = asprintf(&channel_name, DEFAULT_CHANNEL_NAME); | |
304 | if (err < 0) { | |
305 | ret = CMD_FATAL; | |
306 | goto error; | |
307 | } | |
308 | } else { | |
309 | channel_name = opt_channel_name; | |
310 | } | |
311 | ||
cd80958d DG |
312 | handle = lttng_create_handle(session_name, &dom); |
313 | if (handle == NULL) { | |
314 | ret = -1; | |
315 | goto error; | |
316 | } | |
1aef21b6 | 317 | |
cd80958d | 318 | if (opt_enable_all) { |
8c9ae521 | 319 | /* Default setup for enable all */ |
75e8c5ab MD |
320 | if (opt_kernel) { |
321 | ev.type = opt_event_type; | |
322 | ev.name[0] = '\0'; | |
300b8fd5 MD |
323 | /* kernel loglevels not implemented */ |
324 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; | |
75e8c5ab MD |
325 | } else { |
326 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
327 | strcpy(ev.name, "*"); | |
300b8fd5 MD |
328 | ev.loglevel_type = opt_loglevel_type; |
329 | if (opt_loglevel) { | |
330 | ev.loglevel = loglevel_str_to_value(opt_loglevel); | |
331 | if (ev.loglevel == -1) { | |
332 | ERR("Unknown loglevel %s", opt_loglevel); | |
333 | ret = -1; | |
334 | goto error; | |
335 | } | |
22e25b71 MD |
336 | } else { |
337 | ev.loglevel = -1; | |
300b8fd5 | 338 | } |
75e8c5ab | 339 | } |
8c9ae521 DG |
340 | |
341 | ret = lttng_enable_event(handle, &ev, channel_name); | |
342 | if (ret < 0) { | |
343 | goto error; | |
344 | } | |
345 | ||
0133c199 MD |
346 | switch (opt_event_type) { |
347 | case LTTNG_EVENT_TRACEPOINT: | |
300b8fd5 MD |
348 | MSG("All %s tracepoints are enabled in channel %s for loglevel %s", |
349 | opt_kernel ? "kernel" : "UST", channel_name, | |
350 | opt_loglevel ? : "<all>"); | |
0133c199 | 351 | break; |
a54bd42d | 352 | case LTTNG_EVENT_SYSCALL: |
0133c199 | 353 | if (opt_kernel) { |
8c9ae521 DG |
354 | MSG("All kernel system calls are enabled in channel %s", |
355 | channel_name); | |
c93d9daf | 356 | } |
0133c199 | 357 | break; |
7a3d1328 | 358 | case LTTNG_EVENT_ALL: |
300b8fd5 MD |
359 | MSG("All %s events are enabled in channel %s for loglevel %s", |
360 | opt_kernel ? "kernel" : "UST", channel_name, | |
361 | opt_loglevel ? : "<all>"); | |
7a3d1328 | 362 | break; |
0133c199 | 363 | default: |
8c9ae521 | 364 | /* |
6181537c DG |
365 | * We should not be here since lttng_enable_event should have |
366 | * failed on the event type. | |
8c9ae521 | 367 | */ |
f3ed775e DG |
368 | goto error; |
369 | } | |
8c9ae521 | 370 | goto end; |
f3ed775e DG |
371 | } |
372 | ||
373 | /* Strip event list */ | |
374 | event_name = strtok(opt_event_list, ","); | |
375 | while (event_name != NULL) { | |
6181537c DG |
376 | /* Copy name and type of the event */ |
377 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
378 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
379 | ev.type = opt_event_type; | |
380 | ||
f3ed775e DG |
381 | /* Kernel tracer action */ |
382 | if (opt_kernel) { | |
383 | DBG("Enabling kernel event %s for channel %s", | |
384 | event_name, channel_name); | |
f3ed775e DG |
385 | |
386 | switch (opt_event_type) { | |
7a3d1328 MD |
387 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ |
388 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
389 | /* Fall-through */ | |
e6ddca71 | 390 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 391 | break; |
7d29a247 | 392 | case LTTNG_EVENT_PROBE: |
cf0e5467 | 393 | ret = parse_probe_opts(&ev, opt_probe); |
0d63dd19 | 394 | if (ret < 0) { |
cf0e5467 | 395 | ERR("Unable to parse probe options"); |
0d63dd19 DG |
396 | ret = 0; |
397 | goto error; | |
398 | } | |
f3ed775e DG |
399 | break; |
400 | case LTTNG_EVENT_FUNCTION: | |
8f0d098b MD |
401 | ret = parse_probe_opts(&ev, opt_function); |
402 | if (ret < 0) { | |
403 | ERR("Unable to parse function probe options"); | |
404 | ret = 0; | |
405 | goto error; | |
406 | } | |
407 | break; | |
408 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
6181537c DG |
409 | strncpy(ev.attr.ftrace.symbol_name, opt_function_entry_symbol, |
410 | LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 411 | ev.attr.ftrace.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
f3ed775e | 412 | break; |
a54bd42d | 413 | case LTTNG_EVENT_SYSCALL: |
6181537c DG |
414 | MSG("per-syscall selection not supported yet. Use \"-a\" " |
415 | "for all syscalls."); | |
f3ed775e | 416 | default: |
1ab1ea0b | 417 | ret = CMD_UNDEFINED; |
f3ed775e DG |
418 | goto error; |
419 | } | |
0cda4f28 | 420 | |
ed7f4083 | 421 | if (opt_loglevel) { |
0cda4f28 MD |
422 | MSG("Kernel loglevels are not supported."); |
423 | ret = CMD_UNDEFINED; | |
424 | goto error; | |
425 | } | |
426 | ||
427 | /* kernel loglevels not implemented */ | |
8005f29a | 428 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
f3ed775e | 429 | } else if (opt_userspace) { /* User-space tracer action */ |
d78d6610 | 430 | #if 0 |
e14f64a8 DG |
431 | if (opt_cmd_name != NULL || opt_pid) { |
432 | MSG("Only supporting tracing all UST processes (-u) for now."); | |
1ab1ea0b | 433 | ret = CMD_UNDEFINED; |
2bdd86d4 MD |
434 | goto error; |
435 | } | |
d78d6610 | 436 | #endif |
6181537c | 437 | |
300b8fd5 MD |
438 | DBG("Enabling UST event %s for channel %s, loglevel %s", event_name, |
439 | channel_name, opt_loglevel ? : "<all>"); | |
2bdd86d4 MD |
440 | |
441 | switch (opt_event_type) { | |
442 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
443 | /* Fall-through */ |
444 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e MD |
445 | /* Copy name and type of the event */ |
446 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
447 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
448 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 MD |
449 | break; |
450 | case LTTNG_EVENT_PROBE: | |
451 | case LTTNG_EVENT_FUNCTION: | |
452 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
453 | case LTTNG_EVENT_SYSCALL: | |
454 | default: | |
cc62c0c0 | 455 | ERR("Event type not available for user-space tracing"); |
1ab1ea0b | 456 | ret = CMD_UNDEFINED; |
2bdd86d4 MD |
457 | goto error; |
458 | } | |
0cda4f28 MD |
459 | |
460 | ev.loglevel_type = opt_loglevel_type; | |
ed7f4083 | 461 | if (opt_loglevel) { |
8005f29a MD |
462 | ev.loglevel = loglevel_str_to_value(opt_loglevel); |
463 | if (ev.loglevel == -1) { | |
464 | ERR("Unknown loglevel %s", opt_loglevel); | |
300b8fd5 | 465 | ret = -1; |
8005f29a MD |
466 | goto error; |
467 | } | |
22e25b71 MD |
468 | } else { |
469 | ev.loglevel = -1; | |
ed7f4083 | 470 | } |
f3ed775e | 471 | } else { |
e14f64a8 | 472 | ERR("Please specify a tracer (-k/--kernel or -u/--userspace)"); |
300b8fd5 | 473 | ret = CMD_ERROR; |
f3ed775e DG |
474 | goto error; |
475 | } | |
476 | ||
6181537c | 477 | ret = lttng_enable_event(handle, &ev, channel_name); |
ae856491 DG |
478 | if (ret < 0) { |
479 | ERR("Event %s: %s (channel %s, session %s)", event_name, | |
480 | lttng_strerror(ret), channel_name, session_name); | |
481 | warn = 1; | |
482 | } else { | |
6181537c DG |
483 | MSG("%s event %s created in channel %s", |
484 | opt_kernel ? "kernel": "UST", event_name, channel_name); | |
485 | } | |
486 | ||
f3ed775e DG |
487 | /* Next event */ |
488 | event_name = strtok(NULL, ","); | |
489 | } | |
490 | ||
8c9ae521 | 491 | end: |
f3ed775e | 492 | error: |
ae856491 DG |
493 | if (warn) { |
494 | ret = CMD_WARNING; | |
495 | } | |
b73d0b29 MD |
496 | if (opt_channel_name == NULL) { |
497 | free(channel_name); | |
498 | } | |
cd80958d DG |
499 | lttng_destroy_handle(handle); |
500 | ||
f3ed775e DG |
501 | return ret; |
502 | } | |
503 | ||
504 | /* | |
6181537c | 505 | * Add event to trace session |
f3ed775e DG |
506 | */ |
507 | int cmd_enable_events(int argc, const char **argv) | |
508 | { | |
ca1c3607 | 509 | int opt, ret = CMD_SUCCESS; |
f3ed775e | 510 | static poptContext pc; |
cd80958d | 511 | char *session_name = NULL; |
f3ed775e DG |
512 | |
513 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
514 | poptReadDefaultConfig(pc, 0); | |
515 | ||
516 | /* Default event type */ | |
7a3d1328 | 517 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
518 | |
519 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
520 | switch (opt) { | |
521 | case OPT_HELP: | |
ca1c3607 | 522 | usage(stdout); |
f3ed775e | 523 | goto end; |
f3ed775e | 524 | case OPT_TRACEPOINT: |
e6ddca71 | 525 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 526 | break; |
cf0e5467 | 527 | case OPT_PROBE: |
7d29a247 | 528 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e DG |
529 | break; |
530 | case OPT_FUNCTION: | |
531 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b MD |
532 | break; |
533 | case OPT_FUNCTION_ENTRY: | |
534 | opt_event_type = LTTNG_EVENT_FUNCTION_ENTRY; | |
f3ed775e | 535 | break; |
a54bd42d MD |
536 | case OPT_SYSCALL: |
537 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 538 | break; |
eeac7d46 MD |
539 | case OPT_USERSPACE: |
540 | opt_userspace = 1; | |
eeac7d46 | 541 | break; |
0cda4f28 | 542 | case OPT_LOGLEVEL: |
8005f29a | 543 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE; |
0cda4f28 MD |
544 | opt_loglevel = poptGetOptArg(pc); |
545 | break; | |
546 | case OPT_LOGLEVEL_ONLY: | |
8005f29a | 547 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE; |
0cda4f28 | 548 | opt_loglevel = poptGetOptArg(pc); |
13dce3b7 | 549 | break; |
679b4943 SM |
550 | case OPT_LIST_OPTIONS: |
551 | list_cmd_options(stdout, long_options); | |
679b4943 | 552 | goto end; |
f3ed775e DG |
553 | default: |
554 | usage(stderr); | |
555 | ret = CMD_UNDEFINED; | |
556 | goto end; | |
557 | } | |
558 | } | |
559 | ||
560 | opt_event_list = (char*) poptGetArg(pc); | |
561 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
562 | ERR("Missing event name(s).\n"); | |
563 | usage(stderr); | |
ca1c3607 | 564 | ret = CMD_ERROR; |
f3ed775e DG |
565 | goto end; |
566 | } | |
567 | ||
cd80958d DG |
568 | if (!opt_session_name) { |
569 | session_name = get_session_name(); | |
570 | if (session_name == NULL) { | |
ca1c3607 | 571 | ret = CMD_ERROR; |
cd80958d DG |
572 | goto end; |
573 | } | |
574 | } else { | |
575 | session_name = opt_session_name; | |
576 | } | |
577 | ||
578 | ret = enable_events(session_name); | |
f3ed775e DG |
579 | |
580 | end: | |
cd80958d DG |
581 | if (opt_session_name == NULL) { |
582 | free(session_name); | |
583 | } | |
584 | ||
ca1c3607 | 585 | poptFreeContext(pc); |
f3ed775e DG |
586 | return ret; |
587 | } |