Commit | Line | Data |
---|---|---|
f3ed775e DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
d14d33bf AM |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License, version 2 only, | |
6 | * as published by the Free Software Foundation. | |
f3ed775e DG |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
d14d33bf AM |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
f3ed775e DG |
16 | */ |
17 | ||
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 | |
343af227 | 29 | #include <common/sessiond-comm/sessiond-comm.h> |
f5436bfc | 30 | #include <common/compat/string.h> |
9f449915 | 31 | #include <common/string-utils/string-utils.h> |
f3ed775e | 32 | |
89476427 JRJ |
33 | /* Mi dependancy */ |
34 | #include <common/mi-lttng.h> | |
35 | ||
36 | #include "../command.h" | |
37 | ||
8ab7c0d9 MD |
38 | #if (LTTNG_SYMBOL_NAME_LEN == 256) |
39 | #define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255" | |
40 | #endif | |
41 | ||
f3ed775e DG |
42 | static char *opt_event_list; |
43 | static int opt_event_type; | |
0cda4f28 MD |
44 | static const char *opt_loglevel; |
45 | static int opt_loglevel_type; | |
6181537c | 46 | static int opt_kernel; |
5440dc42 | 47 | static char *opt_session_name; |
f3ed775e | 48 | static int opt_userspace; |
b9dfb167 | 49 | static int opt_jul; |
5cdb6027 | 50 | static int opt_log4j; |
0e115563 | 51 | static int opt_python; |
f3ed775e | 52 | static int opt_enable_all; |
cf0e5467 | 53 | static char *opt_probe; |
8f0d098b | 54 | static char *opt_function; |
f3ed775e | 55 | static char *opt_channel_name; |
53a80697 | 56 | static char *opt_filter; |
fac3366c | 57 | static char *opt_exclude; |
f3ed775e | 58 | |
4fc83d94 PP |
59 | #ifdef LTTNG_EMBED_HELP |
60 | static const char help_msg[] = | |
61 | #include <lttng-enable-event.1.h> | |
62 | ; | |
63 | #endif | |
64 | ||
f3ed775e DG |
65 | enum { |
66 | OPT_HELP = 1, | |
f3ed775e | 67 | OPT_TRACEPOINT, |
cf0e5467 | 68 | OPT_PROBE, |
f3ed775e | 69 | OPT_FUNCTION, |
a54bd42d | 70 | OPT_SYSCALL, |
eeac7d46 | 71 | OPT_USERSPACE, |
0cda4f28 MD |
72 | OPT_LOGLEVEL, |
73 | OPT_LOGLEVEL_ONLY, | |
679b4943 | 74 | OPT_LIST_OPTIONS, |
53a80697 | 75 | OPT_FILTER, |
fac3366c | 76 | OPT_EXCLUDE, |
f3ed775e DG |
77 | }; |
78 | ||
cd80958d | 79 | static struct lttng_handle *handle; |
89476427 | 80 | static struct mi_writer *writer; |
cd80958d | 81 | |
f3ed775e DG |
82 | static struct poptOption long_options[] = { |
83 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
84 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 85 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e14f64a8 | 86 | {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0}, |
f3ed775e DG |
87 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
88 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, | |
d78d6610 | 89 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, |
b9dfb167 | 90 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
5cdb6027 | 91 | {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, |
0e115563 | 92 | {"python", 'p', POPT_ARG_VAL, &opt_python, 1, 0, 0}, |
f3ed775e | 93 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0}, |
7ebae521 | 94 | {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0}, |
40e9d5d3 | 95 | {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0}, |
7ebae521 | 96 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0}, |
0cda4f28 MD |
97 | {"loglevel", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL, 0, 0}, |
98 | {"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0}, | |
679b4943 | 99 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
53a80697 | 100 | {"filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0}, |
fac3366c | 101 | {"exclude", 'x', POPT_ARG_STRING, &opt_exclude, OPT_EXCLUDE, 0, 0}, |
f3ed775e DG |
102 | {0, 0, 0, 0, 0, 0, 0} |
103 | }; | |
104 | ||
0d63dd19 | 105 | /* |
6181537c | 106 | * Parse probe options. |
0d63dd19 | 107 | */ |
cf0e5467 | 108 | static int parse_probe_opts(struct lttng_event *ev, char *opt) |
0d63dd19 | 109 | { |
49d4e302 JRJ |
110 | int ret = CMD_SUCCESS; |
111 | int match; | |
8ff0bbd0 | 112 | char s_hex[19]; |
8ab7c0d9 | 113 | #define S_HEX_LEN_SCANF_IS_A_BROKEN_API "18" /* 18 is (19 - 1) (\0 is extra) */ |
0d63dd19 DG |
114 | char name[LTTNG_SYMBOL_NAME_LEN]; |
115 | ||
116 | if (opt == NULL) { | |
49d4e302 | 117 | ret = CMD_ERROR; |
8f0d098b | 118 | goto end; |
0d63dd19 DG |
119 | } |
120 | ||
121 | /* Check for symbol+offset */ | |
49d4e302 | 122 | match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API |
8ab7c0d9 | 123 | "[^'+']+%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", name, s_hex); |
49d4e302 | 124 | if (match == 2) { |
7d29a247 | 125 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 126 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
cf0e5467 | 127 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
9d035200 | 128 | if (*s_hex == '\0') { |
8ff0bbd0 | 129 | ERR("Invalid probe offset %s", s_hex); |
49d4e302 | 130 | ret = CMD_ERROR; |
8f0d098b | 131 | goto end; |
0d63dd19 | 132 | } |
8ff0bbd0 | 133 | ev->attr.probe.offset = strtoul(s_hex, NULL, 0); |
cf0e5467 | 134 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); |
3000dc78 | 135 | ev->attr.probe.addr = 0; |
8f0d098b MD |
136 | goto end; |
137 | } | |
138 | ||
139 | /* Check for symbol */ | |
140 | if (isalpha(name[0])) { | |
49d4e302 | 141 | match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s", |
8ab7c0d9 | 142 | name); |
49d4e302 | 143 | if (match == 1) { |
8f0d098b | 144 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 145 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
8f0d098b MD |
146 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
147 | ev->attr.probe.offset = 0; | |
148 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); | |
149 | ev->attr.probe.addr = 0; | |
150 | goto end; | |
151 | } | |
0d63dd19 DG |
152 | } |
153 | ||
154 | /* Check for address */ | |
49d4e302 JRJ |
155 | match = sscanf(opt, "%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", s_hex); |
156 | if (match > 0) { | |
9d035200 | 157 | if (*s_hex == '\0') { |
8ff0bbd0 | 158 | ERR("Invalid probe address %s", s_hex); |
49d4e302 | 159 | ret = CMD_ERROR; |
8f0d098b | 160 | goto end; |
0d63dd19 | 161 | } |
8ff0bbd0 | 162 | ev->attr.probe.addr = strtoul(s_hex, NULL, 0); |
cf0e5467 | 163 | DBG("probe addr %" PRIu64, ev->attr.probe.addr); |
3000dc78 DG |
164 | ev->attr.probe.offset = 0; |
165 | memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN); | |
8f0d098b | 166 | goto end; |
0d63dd19 DG |
167 | } |
168 | ||
169 | /* No match */ | |
49d4e302 | 170 | ret = CMD_ERROR; |
0d63dd19 | 171 | |
8f0d098b | 172 | end: |
0d63dd19 DG |
173 | return ret; |
174 | } | |
175 | ||
5cdb6027 DG |
176 | /* |
177 | * Maps LOG4j loglevel from string to value | |
178 | */ | |
179 | static int loglevel_log4j_str_to_value(const char *inputstr) | |
180 | { | |
181 | int i = 0; | |
182 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
183 | ||
3712b110 JG |
184 | if (!inputstr || strlen(inputstr) == 0) { |
185 | return -1; | |
186 | } | |
187 | ||
5cdb6027 DG |
188 | /* |
189 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
190 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
191 | */ | |
192 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
193 | str[i] = toupper(inputstr[i]); | |
194 | i++; | |
195 | } | |
196 | str[i] = '\0'; | |
197 | ||
198 | if (!strcmp(str, "LOG4J_OFF") || !strcmp(str, "OFF")) { | |
199 | return LTTNG_LOGLEVEL_LOG4J_OFF; | |
200 | } else if (!strcmp(str, "LOG4J_FATAL") || !strcmp(str, "FATAL")) { | |
201 | return LTTNG_LOGLEVEL_LOG4J_FATAL; | |
202 | } else if (!strcmp(str, "LOG4J_ERROR") || !strcmp(str, "ERROR")) { | |
203 | return LTTNG_LOGLEVEL_LOG4J_ERROR; | |
204 | } else if (!strcmp(str, "LOG4J_WARN") || !strcmp(str, "WARN")) { | |
205 | return LTTNG_LOGLEVEL_LOG4J_WARN; | |
206 | } else if (!strcmp(str, "LOG4J_INFO") || !strcmp(str, "INFO")) { | |
207 | return LTTNG_LOGLEVEL_LOG4J_INFO; | |
208 | } else if (!strcmp(str, "LOG4J_DEBUG") || !strcmp(str, "DEBUG")) { | |
209 | return LTTNG_LOGLEVEL_LOG4J_DEBUG; | |
210 | } else if (!strcmp(str, "LOG4J_TRACE") || !strcmp(str, "TRACE")) { | |
211 | return LTTNG_LOGLEVEL_LOG4J_TRACE; | |
212 | } else if (!strcmp(str, "LOG4J_ALL") || !strcmp(str, "ALL")) { | |
213 | return LTTNG_LOGLEVEL_LOG4J_ALL; | |
214 | } else { | |
215 | return -1; | |
216 | } | |
217 | } | |
218 | ||
b2064f54 DG |
219 | /* |
220 | * Maps JUL loglevel from string to value | |
221 | */ | |
222 | static int loglevel_jul_str_to_value(const char *inputstr) | |
223 | { | |
224 | int i = 0; | |
225 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
226 | ||
3712b110 JG |
227 | if (!inputstr || strlen(inputstr) == 0) { |
228 | return -1; | |
229 | } | |
230 | ||
b2064f54 DG |
231 | /* |
232 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
233 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
234 | */ | |
235 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
236 | str[i] = toupper(inputstr[i]); | |
237 | i++; | |
238 | } | |
239 | str[i] = '\0'; | |
240 | ||
241 | if (!strcmp(str, "JUL_OFF") || !strcmp(str, "OFF")) { | |
242 | return LTTNG_LOGLEVEL_JUL_OFF; | |
243 | } else if (!strcmp(str, "JUL_SEVERE") || !strcmp(str, "SEVERE")) { | |
244 | return LTTNG_LOGLEVEL_JUL_SEVERE; | |
245 | } else if (!strcmp(str, "JUL_WARNING") || !strcmp(str, "WARNING")) { | |
246 | return LTTNG_LOGLEVEL_JUL_WARNING; | |
247 | } else if (!strcmp(str, "JUL_INFO") || !strcmp(str, "INFO")) { | |
248 | return LTTNG_LOGLEVEL_JUL_INFO; | |
249 | } else if (!strcmp(str, "JUL_CONFIG") || !strcmp(str, "CONFIG")) { | |
250 | return LTTNG_LOGLEVEL_JUL_CONFIG; | |
251 | } else if (!strcmp(str, "JUL_FINE") || !strcmp(str, "FINE")) { | |
252 | return LTTNG_LOGLEVEL_JUL_FINE; | |
253 | } else if (!strcmp(str, "JUL_FINER") || !strcmp(str, "FINER")) { | |
254 | return LTTNG_LOGLEVEL_JUL_FINER; | |
255 | } else if (!strcmp(str, "JUL_FINEST") || !strcmp(str, "FINEST")) { | |
256 | return LTTNG_LOGLEVEL_JUL_FINEST; | |
257 | } else if (!strcmp(str, "JUL_ALL") || !strcmp(str, "ALL")) { | |
258 | return LTTNG_LOGLEVEL_JUL_ALL; | |
259 | } else { | |
260 | return -1; | |
261 | } | |
262 | } | |
263 | ||
0e115563 DG |
264 | /* |
265 | * Maps Python loglevel from string to value | |
266 | */ | |
267 | static int loglevel_python_str_to_value(const char *inputstr) | |
268 | { | |
269 | int i = 0; | |
270 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
271 | ||
3712b110 JG |
272 | if (!inputstr || strlen(inputstr) == 0) { |
273 | return -1; | |
274 | } | |
275 | ||
0e115563 DG |
276 | /* |
277 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
278 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
279 | */ | |
280 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
281 | str[i] = toupper(inputstr[i]); | |
282 | i++; | |
283 | } | |
284 | str[i] = '\0'; | |
285 | ||
286 | if (!strcmp(str, "PYTHON_CRITICAL") || !strcmp(str, "CRITICAL")) { | |
287 | return LTTNG_LOGLEVEL_PYTHON_CRITICAL; | |
288 | } else if (!strcmp(str, "PYTHON_ERROR") || !strcmp(str, "ERROR")) { | |
289 | return LTTNG_LOGLEVEL_PYTHON_ERROR; | |
290 | } else if (!strcmp(str, "PYTHON_WARNING") || !strcmp(str, "WARNING")) { | |
291 | return LTTNG_LOGLEVEL_PYTHON_WARNING; | |
292 | } else if (!strcmp(str, "PYTHON_INFO") || !strcmp(str, "INFO")) { | |
293 | return LTTNG_LOGLEVEL_PYTHON_INFO; | |
294 | } else if (!strcmp(str, "PYTNON_DEBUG") || !strcmp(str, "DEBUG")) { | |
295 | return LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
296 | } else if (!strcmp(str, "PYTHON_NOTSET") || !strcmp(str, "NOTSET")) { | |
297 | return LTTNG_LOGLEVEL_PYTHON_NOTSET; | |
298 | } else { | |
299 | return -1; | |
300 | } | |
301 | } | |
302 | ||
8005f29a | 303 | /* |
0c8477c8 | 304 | * Maps loglevel from string to value |
8005f29a MD |
305 | */ |
306 | static | |
46839cc2 | 307 | int loglevel_str_to_value(const char *inputstr) |
8005f29a | 308 | { |
46839cc2 MD |
309 | int i = 0; |
310 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
311 | ||
3712b110 JG |
312 | if (!inputstr || strlen(inputstr) == 0) { |
313 | return -1; | |
314 | } | |
315 | ||
e051e07c DG |
316 | /* |
317 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
318 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
319 | */ | |
320 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
46839cc2 MD |
321 | str[i] = toupper(inputstr[i]); |
322 | i++; | |
323 | } | |
324 | str[i] = '\0'; | |
325 | if (!strcmp(str, "TRACE_EMERG") || !strcmp(str, "EMERG")) { | |
326 | return LTTNG_LOGLEVEL_EMERG; | |
327 | } else if (!strcmp(str, "TRACE_ALERT") || !strcmp(str, "ALERT")) { | |
328 | return LTTNG_LOGLEVEL_ALERT; | |
329 | } else if (!strcmp(str, "TRACE_CRIT") || !strcmp(str, "CRIT")) { | |
330 | return LTTNG_LOGLEVEL_CRIT; | |
331 | } else if (!strcmp(str, "TRACE_ERR") || !strcmp(str, "ERR")) { | |
332 | return LTTNG_LOGLEVEL_ERR; | |
333 | } else if (!strcmp(str, "TRACE_WARNING") || !strcmp(str, "WARNING")) { | |
334 | return LTTNG_LOGLEVEL_WARNING; | |
335 | } else if (!strcmp(str, "TRACE_NOTICE") || !strcmp(str, "NOTICE")) { | |
336 | return LTTNG_LOGLEVEL_NOTICE; | |
337 | } else if (!strcmp(str, "TRACE_INFO") || !strcmp(str, "INFO")) { | |
338 | return LTTNG_LOGLEVEL_INFO; | |
339 | } else if (!strcmp(str, "TRACE_DEBUG_SYSTEM") || !strcmp(str, "DEBUG_SYSTEM") || !strcmp(str, "SYSTEM")) { | |
340 | return LTTNG_LOGLEVEL_DEBUG_SYSTEM; | |
341 | } else if (!strcmp(str, "TRACE_DEBUG_PROGRAM") || !strcmp(str, "DEBUG_PROGRAM") || !strcmp(str, "PROGRAM")) { | |
342 | return LTTNG_LOGLEVEL_DEBUG_PROGRAM; | |
343 | } else if (!strcmp(str, "TRACE_DEBUG_PROCESS") || !strcmp(str, "DEBUG_PROCESS") || !strcmp(str, "PROCESS")) { | |
344 | return LTTNG_LOGLEVEL_DEBUG_PROCESS; | |
345 | } else if (!strcmp(str, "TRACE_DEBUG_MODULE") || !strcmp(str, "DEBUG_MODULE") || !strcmp(str, "MODULE")) { | |
346 | return LTTNG_LOGLEVEL_DEBUG_MODULE; | |
347 | } else if (!strcmp(str, "TRACE_DEBUG_UNIT") || !strcmp(str, "DEBUG_UNIT") || !strcmp(str, "UNIT")) { | |
348 | return LTTNG_LOGLEVEL_DEBUG_UNIT; | |
349 | } else if (!strcmp(str, "TRACE_DEBUG_FUNCTION") || !strcmp(str, "DEBUG_FUNCTION") || !strcmp(str, "FUNCTION")) { | |
350 | return LTTNG_LOGLEVEL_DEBUG_FUNCTION; | |
351 | } else if (!strcmp(str, "TRACE_DEBUG_LINE") || !strcmp(str, "DEBUG_LINE") || !strcmp(str, "LINE")) { | |
352 | return LTTNG_LOGLEVEL_DEBUG_LINE; | |
353 | } else if (!strcmp(str, "TRACE_DEBUG") || !strcmp(str, "DEBUG")) { | |
354 | return LTTNG_LOGLEVEL_DEBUG; | |
8005f29a MD |
355 | } else { |
356 | return -1; | |
357 | } | |
358 | } | |
359 | ||
85076754 MD |
360 | static |
361 | const char *print_channel_name(const char *name) | |
362 | { | |
363 | return name ? : DEFAULT_CHANNEL_NAME; | |
364 | } | |
365 | ||
366 | static | |
367 | const char *print_raw_channel_name(const char *name) | |
368 | { | |
369 | return name ? : "<default>"; | |
370 | } | |
371 | ||
89476427 JRJ |
372 | /* |
373 | * Mi print exlcusion list | |
374 | */ | |
375 | static | |
9f449915 | 376 | int mi_print_exclusion(char **names) |
89476427 JRJ |
377 | { |
378 | int i, ret; | |
9f449915 | 379 | int count = names ? strutils_array_of_strings_len(names) : 0; |
89476427 JRJ |
380 | |
381 | assert(writer); | |
382 | ||
383 | if (count == 0) { | |
384 | ret = 0; | |
385 | goto end; | |
386 | } | |
387 | ret = mi_lttng_writer_open_element(writer, config_element_exclusions); | |
388 | if (ret) { | |
389 | goto end; | |
390 | } | |
391 | ||
392 | for (i = 0; i < count; i++) { | |
393 | ret = mi_lttng_writer_write_element_string(writer, | |
394 | config_element_exclusion, names[i]); | |
395 | if (ret) { | |
396 | goto end; | |
397 | } | |
398 | } | |
399 | ||
400 | /* Close exclusions element */ | |
401 | ret = mi_lttng_writer_close_element(writer); | |
402 | ||
403 | end: | |
404 | return ret; | |
405 | } | |
406 | ||
9c48cab3 JI |
407 | /* |
408 | * Return allocated string for pretty-printing exclusion names. | |
409 | */ | |
410 | static | |
9f449915 | 411 | char *print_exclusions(char **names) |
9c48cab3 JI |
412 | { |
413 | int length = 0; | |
414 | int i; | |
415 | const char *preamble = " excluding "; | |
416 | char *ret; | |
9f449915 | 417 | int count = names ? strutils_array_of_strings_len(names) : 0; |
9c48cab3 JI |
418 | |
419 | if (count == 0) { | |
420 | return strdup(""); | |
421 | } | |
422 | ||
423 | /* calculate total required length */ | |
424 | for (i = 0; i < count; i++) { | |
9f449915 | 425 | length += strlen(names[i]) + 4; |
9c48cab3 JI |
426 | } |
427 | ||
428 | /* add length of preamble + one for NUL - one for last (missing) comma */ | |
429 | length += strlen(preamble); | |
9f449915 | 430 | ret = zmalloc(length + 1); |
fd591b18 MD |
431 | if (!ret) { |
432 | return NULL; | |
433 | } | |
9c48cab3 JI |
434 | strncpy(ret, preamble, length); |
435 | for (i = 0; i < count; i++) { | |
9f449915 | 436 | strcat(ret, "\""); |
9c48cab3 | 437 | strcat(ret, names[i]); |
9f449915 | 438 | strcat(ret, "\""); |
9c48cab3 | 439 | if (i != count - 1) { |
9f449915 | 440 | strcat(ret, ", "); |
9c48cab3 JI |
441 | } |
442 | } | |
89476427 | 443 | |
9c48cab3 JI |
444 | return ret; |
445 | } | |
446 | ||
748bde76 | 447 | static |
9f449915 | 448 | int check_exclusion_subsets(const char *event_name, const char *exclusion) |
748bde76 | 449 | { |
9f449915 PP |
450 | bool warn = false; |
451 | int ret = 0; | |
452 | const char *e = event_name; | |
453 | const char *x = exclusion; | |
454 | ||
455 | /* Scan both the excluder and the event letter by letter */ | |
456 | while (true) { | |
457 | if (*e == '\\') { | |
458 | if (*x != *e) { | |
459 | warn = true; | |
460 | goto end; | |
461 | } | |
748bde76 | 462 | |
9f449915 PP |
463 | e++; |
464 | x++; | |
465 | goto cmp_chars; | |
466 | } | |
467 | ||
468 | if (*x == '*') { | |
469 | /* Event is a subset of the excluder */ | |
470 | ERR("Event %s: %s excludes all events from %s", | |
471 | event_name, exclusion, event_name); | |
472 | goto error; | |
473 | } | |
474 | ||
475 | if (*e == '*') { | |
476 | /* | |
477 | * Reached the end of the event name before the | |
478 | * end of the exclusion: this is valid. | |
479 | */ | |
480 | goto end; | |
481 | } | |
482 | ||
483 | cmp_chars: | |
484 | if (*x != *e) { | |
485 | warn = true; | |
486 | break; | |
487 | } | |
488 | ||
489 | x++; | |
490 | e++; | |
748bde76 JI |
491 | } |
492 | ||
9f449915 | 493 | goto end; |
748bde76 | 494 | |
9f449915 PP |
495 | error: |
496 | ret = -1; | |
748bde76 | 497 | |
9f449915 PP |
498 | end: |
499 | if (warn) { | |
500 | WARN("Event %s: %s does not exclude any events from %s", | |
501 | event_name, exclusion, event_name); | |
502 | } | |
748bde76 | 503 | |
9f449915 PP |
504 | return ret; |
505 | } | |
506 | ||
9f449915 PP |
507 | static |
508 | int create_exclusion_list_and_validate(const char *event_name, | |
509 | const char *exclusions_arg, | |
510 | char ***exclusion_list) | |
511 | { | |
512 | int ret = 0; | |
513 | char **exclusions = NULL; | |
514 | ||
515 | /* Event name must be a valid globbing pattern to allow exclusions. */ | |
516 | if (!strutils_is_star_glob_pattern(event_name)) { | |
517 | ERR("Event %s: Exclusions can only be used with a globbing pattern", | |
518 | event_name); | |
519 | goto error; | |
520 | } | |
521 | ||
522 | /* Split exclusions. */ | |
523 | exclusions = strutils_split(exclusions_arg, ',', true); | |
524 | if (!exclusions) { | |
525 | goto error; | |
526 | } | |
527 | ||
528 | /* | |
529 | * If the event name is a star-at-end only globbing pattern, | |
530 | * then we can validate the individual exclusions. Otherwise | |
531 | * all exclusions are passed to the session daemon. | |
532 | */ | |
533 | if (strutils_is_star_at_the_end_only_glob_pattern(event_name)) { | |
534 | char * const *exclusion; | |
535 | ||
536 | for (exclusion = exclusions; *exclusion; exclusion++) { | |
537 | if (!strutils_is_star_glob_pattern(*exclusion) || | |
538 | strutils_is_star_at_the_end_only_glob_pattern(*exclusion)) { | |
8aa579d4 | 539 | ret = check_exclusion_subsets(event_name, *exclusion); |
9f449915 | 540 | if (ret) { |
5ef79758 MD |
541 | goto error; |
542 | } | |
748bde76 | 543 | } |
748bde76 JI |
544 | } |
545 | } | |
9f449915 PP |
546 | |
547 | *exclusion_list = exclusions; | |
548 | ||
748bde76 | 549 | goto end; |
9f449915 | 550 | |
748bde76 | 551 | error: |
9f449915 PP |
552 | ret = -1; |
553 | strutils_free_null_terminated_array_of_strings(exclusions); | |
554 | ||
748bde76 | 555 | end: |
748bde76 JI |
556 | return ret; |
557 | } | |
502bbe89 | 558 | |
9f449915 PP |
559 | static void warn_on_truncated_exclusion_names(char * const *exclusion_list, |
560 | int *warn) | |
502bbe89 | 561 | { |
9f449915 | 562 | char * const *exclusion; |
502bbe89 | 563 | |
9f449915 PP |
564 | for (exclusion = exclusion_list; *exclusion; exclusion++) { |
565 | if (strlen(*exclusion) >= LTTNG_SYMBOL_NAME_LEN) { | |
502bbe89 | 566 | WARN("Event exclusion \"%s\" will be truncated", |
9f449915 | 567 | *exclusion); |
502bbe89 PP |
568 | *warn = 1; |
569 | } | |
570 | } | |
571 | } | |
572 | ||
f3ed775e | 573 | /* |
6181537c | 574 | * Enabling event using the lttng API. |
89476427 | 575 | * Note: in case of error only the last error code will be return. |
f3ed775e | 576 | */ |
cd80958d | 577 | static int enable_events(char *session_name) |
f3ed775e | 578 | { |
89476427 JRJ |
579 | int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS; |
580 | int error_holder = CMD_SUCCESS, warn = 0, error = 0, success = 1; | |
b73d0b29 | 581 | char *event_name, *channel_name = NULL; |
f3ed775e | 582 | struct lttng_event ev; |
7d29a247 | 583 | struct lttng_domain dom; |
7ed70bc9 | 584 | char **exclusion_list = NULL; |
f3ed775e | 585 | |
441c16a7 MD |
586 | memset(&ev, 0, sizeof(ev)); |
587 | memset(&dom, 0, sizeof(dom)); | |
588 | ||
53a80697 | 589 | if (opt_kernel) { |
67b58630 JG |
590 | if (opt_loglevel) { |
591 | WARN("Kernel loglevels are not supported."); | |
592 | } | |
53a80697 MD |
593 | } |
594 | ||
7d29a247 DG |
595 | /* Create lttng domain */ |
596 | if (opt_kernel) { | |
597 | dom.type = LTTNG_DOMAIN_KERNEL; | |
7972aab2 | 598 | dom.buf_type = LTTNG_BUFFER_GLOBAL; |
d78d6610 | 599 | } else if (opt_userspace) { |
2bdd86d4 | 600 | dom.type = LTTNG_DOMAIN_UST; |
7972aab2 | 601 | /* Default. */ |
8692d4e5 | 602 | dom.buf_type = LTTNG_BUFFER_PER_UID; |
b9dfb167 DG |
603 | } else if (opt_jul) { |
604 | dom.type = LTTNG_DOMAIN_JUL; | |
605 | /* Default. */ | |
606 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
5cdb6027 DG |
607 | } else if (opt_log4j) { |
608 | dom.type = LTTNG_DOMAIN_LOG4J; | |
609 | /* Default. */ | |
610 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
0e115563 DG |
611 | } else if (opt_python) { |
612 | dom.type = LTTNG_DOMAIN_PYTHON; | |
613 | /* Default. */ | |
614 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
6181537c | 615 | } else { |
3ecec76a PP |
616 | /* Checked by the caller. */ |
617 | assert(0); | |
2bdd86d4 | 618 | } |
7d29a247 | 619 | |
8b08c525 AB |
620 | if (opt_exclude) { |
621 | switch (dom.type) { | |
622 | case LTTNG_DOMAIN_KERNEL: | |
623 | case LTTNG_DOMAIN_JUL: | |
624 | case LTTNG_DOMAIN_LOG4J: | |
625 | case LTTNG_DOMAIN_PYTHON: | |
626 | ERR("Event name exclusions are not yet implemented for %s events", | |
627 | get_domain_str(dom.type)); | |
628 | ret = CMD_ERROR; | |
629 | goto error; | |
630 | case LTTNG_DOMAIN_UST: | |
631 | /* Exclusions supported */ | |
632 | break; | |
633 | default: | |
634 | assert(0); | |
635 | } | |
d5dd17fd JI |
636 | } |
637 | ||
85076754 | 638 | channel_name = opt_channel_name; |
ae856491 | 639 | |
cd80958d DG |
640 | handle = lttng_create_handle(session_name, &dom); |
641 | if (handle == NULL) { | |
642 | ret = -1; | |
643 | goto error; | |
644 | } | |
1aef21b6 | 645 | |
89476427 JRJ |
646 | /* Prepare Mi */ |
647 | if (lttng_opt_mi) { | |
648 | /* Open a events element */ | |
649 | ret = mi_lttng_writer_open_element(writer, config_element_events); | |
650 | if (ret) { | |
651 | ret = CMD_ERROR; | |
652 | goto error; | |
653 | } | |
654 | } | |
655 | ||
cd80958d | 656 | if (opt_enable_all) { |
8c9ae521 | 657 | /* Default setup for enable all */ |
75e8c5ab MD |
658 | if (opt_kernel) { |
659 | ev.type = opt_event_type; | |
29c62722 | 660 | strcpy(ev.name, "*"); |
300b8fd5 MD |
661 | /* kernel loglevels not implemented */ |
662 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; | |
75e8c5ab MD |
663 | } else { |
664 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
665 | strcpy(ev.name, "*"); | |
300b8fd5 MD |
666 | ev.loglevel_type = opt_loglevel_type; |
667 | if (opt_loglevel) { | |
0e115563 | 668 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 DG |
669 | if (opt_userspace) { |
670 | ev.loglevel = loglevel_str_to_value(opt_loglevel); | |
671 | } else if (opt_jul) { | |
672 | ev.loglevel = loglevel_jul_str_to_value(opt_loglevel); | |
5cdb6027 DG |
673 | } else if (opt_log4j) { |
674 | ev.loglevel = loglevel_log4j_str_to_value(opt_loglevel); | |
0e115563 DG |
675 | } else if (opt_python) { |
676 | ev.loglevel = loglevel_python_str_to_value(opt_loglevel); | |
b2064f54 | 677 | } |
300b8fd5 MD |
678 | if (ev.loglevel == -1) { |
679 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 680 | ret = -LTTNG_ERR_INVALID; |
300b8fd5 MD |
681 | goto error; |
682 | } | |
22e25b71 | 683 | } else { |
0e115563 | 684 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 DG |
685 | if (opt_userspace) { |
686 | ev.loglevel = -1; | |
34aa3685 | 687 | } else if (opt_jul) { |
b2064f54 | 688 | ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL; |
34aa3685 JG |
689 | } else if (opt_log4j) { |
690 | ev.loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; | |
0e115563 DG |
691 | } else if (opt_python) { |
692 | ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
b2064f54 | 693 | } |
300b8fd5 | 694 | } |
75e8c5ab | 695 | } |
8c9ae521 | 696 | |
7ed70bc9 | 697 | if (opt_exclude) { |
9f449915 PP |
698 | ret = create_exclusion_list_and_validate("*", |
699 | opt_exclude, &exclusion_list); | |
700 | if (ret) { | |
701 | ret = CMD_ERROR; | |
7ed70bc9 JI |
702 | goto error; |
703 | } | |
502bbe89 | 704 | |
9f449915 | 705 | ev.exclusion = 1; |
502bbe89 | 706 | warn_on_truncated_exclusion_names(exclusion_list, |
9f449915 | 707 | &warn); |
7ed70bc9 | 708 | } |
025faf73 | 709 | if (!opt_filter) { |
7ed70bc9 JI |
710 | ret = lttng_enable_event_with_exclusions(handle, |
711 | &ev, channel_name, | |
712 | NULL, | |
9f449915 PP |
713 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, |
714 | exclusion_list); | |
025faf73 DG |
715 | if (ret < 0) { |
716 | switch (-ret) { | |
717 | case LTTNG_ERR_KERN_EVENT_EXIST: | |
718 | WARN("Kernel events already enabled (channel %s, session %s)", | |
85076754 | 719 | print_channel_name(channel_name), session_name); |
89476427 | 720 | warn = 1; |
025faf73 | 721 | break; |
45d5d421 CB |
722 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
723 | { | |
724 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
725 | ERR("Events: %s (channel %s, session %s)", | |
726 | msg, | |
727 | print_channel_name(channel_name), | |
728 | session_name); | |
729 | error = 1; | |
730 | break; | |
731 | } | |
025faf73 DG |
732 | default: |
733 | ERR("Events: %s (channel %s, session %s)", | |
85076754 MD |
734 | lttng_strerror(ret), |
735 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
736 | ? print_raw_channel_name(channel_name) | |
737 | : print_channel_name(channel_name), | |
738 | session_name); | |
89476427 | 739 | error = 1; |
025faf73 DG |
740 | break; |
741 | } | |
742 | goto end; | |
42224349 | 743 | } |
8c9ae521 | 744 | |
025faf73 DG |
745 | switch (opt_event_type) { |
746 | case LTTNG_EVENT_TRACEPOINT: | |
67b58630 | 747 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9f449915 | 748 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
749 | |
750 | if (!exclusion_string) { | |
751 | PERROR("Cannot allocate exclusion_string"); | |
752 | error = 1; | |
753 | goto end; | |
754 | } | |
9c48cab3 | 755 | MSG("All %s tracepoints%s are enabled in channel %s for loglevel %s", |
b9dfb167 | 756 | get_domain_str(dom.type), |
9c48cab3 | 757 | exclusion_string, |
85076754 | 758 | print_channel_name(channel_name), |
025faf73 | 759 | opt_loglevel); |
9c48cab3 | 760 | free(exclusion_string); |
025faf73 | 761 | } else { |
9f449915 | 762 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
763 | |
764 | if (!exclusion_string) { | |
765 | PERROR("Cannot allocate exclusion_string"); | |
766 | error = 1; | |
767 | goto end; | |
768 | } | |
9c48cab3 | 769 | MSG("All %s tracepoints%s are enabled in channel %s", |
b9dfb167 | 770 | get_domain_str(dom.type), |
9c48cab3 | 771 | exclusion_string, |
85076754 | 772 | print_channel_name(channel_name)); |
9c48cab3 | 773 | free(exclusion_string); |
025faf73 DG |
774 | } |
775 | break; | |
776 | case LTTNG_EVENT_SYSCALL: | |
777 | if (opt_kernel) { | |
6e911cad MD |
778 | MSG("All %s system calls are enabled in channel %s", |
779 | get_domain_str(dom.type), | |
85076754 | 780 | print_channel_name(channel_name)); |
025faf73 DG |
781 | } |
782 | break; | |
783 | case LTTNG_EVENT_ALL: | |
67b58630 | 784 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9f449915 | 785 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
786 | |
787 | if (!exclusion_string) { | |
788 | PERROR("Cannot allocate exclusion_string"); | |
789 | error = 1; | |
790 | goto end; | |
791 | } | |
9c48cab3 | 792 | MSG("All %s events%s are enabled in channel %s for loglevel %s", |
b9dfb167 | 793 | get_domain_str(dom.type), |
9c48cab3 | 794 | exclusion_string, |
85076754 | 795 | print_channel_name(channel_name), |
025faf73 | 796 | opt_loglevel); |
9c48cab3 | 797 | free(exclusion_string); |
025faf73 | 798 | } else { |
9f449915 | 799 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
800 | |
801 | if (!exclusion_string) { | |
802 | PERROR("Cannot allocate exclusion_string"); | |
803 | error = 1; | |
804 | goto end; | |
805 | } | |
9c48cab3 | 806 | MSG("All %s events%s are enabled in channel %s", |
b9dfb167 | 807 | get_domain_str(dom.type), |
9c48cab3 | 808 | exclusion_string, |
85076754 | 809 | print_channel_name(channel_name)); |
9c48cab3 | 810 | free(exclusion_string); |
025faf73 DG |
811 | } |
812 | break; | |
813 | default: | |
814 | /* | |
815 | * We should not be here since lttng_enable_event should have | |
816 | * failed on the event type. | |
817 | */ | |
818 | goto error; | |
57064ada | 819 | } |
f3ed775e | 820 | } |
89476427 | 821 | |
025faf73 | 822 | if (opt_filter) { |
89476427 | 823 | command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name, |
9f449915 PP |
824 | opt_filter, |
825 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, | |
826 | exclusion_list); | |
89476427 JRJ |
827 | if (command_ret < 0) { |
828 | switch (-command_ret) { | |
16363652 | 829 | case LTTNG_ERR_FILTER_EXIST: |
85076754 | 830 | WARN("Filter on all events is already enabled" |
16363652 | 831 | " (channel %s, session %s)", |
85076754 | 832 | print_channel_name(channel_name), session_name); |
89476427 | 833 | warn = 1; |
16363652 | 834 | break; |
45d5d421 CB |
835 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
836 | { | |
837 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
838 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", | |
839 | msg, | |
840 | print_channel_name(channel_name), | |
841 | session_name, opt_filter); | |
842 | error = 1; | |
843 | break; | |
844 | } | |
16363652 | 845 | default: |
85076754 | 846 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", |
da3d7d0e JRJ |
847 | lttng_strerror(command_ret), |
848 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
849 | ? print_raw_channel_name(channel_name) |
850 | : print_channel_name(channel_name), | |
851 | session_name, opt_filter); | |
89476427 | 852 | error = 1; |
16363652 DG |
853 | break; |
854 | } | |
89476427 | 855 | error_holder = command_ret; |
16363652 | 856 | } else { |
89476427 | 857 | ev.filter = 1; |
16363652 DG |
858 | MSG("Filter '%s' successfully set", opt_filter); |
859 | } | |
860 | } | |
89476427 JRJ |
861 | |
862 | if (lttng_opt_mi) { | |
863 | /* The wildcard * is used for kernel and ust domain to | |
864 | * represent ALL. We copy * in event name to force the wildcard use | |
865 | * for kernel domain | |
866 | * | |
867 | * Note: this is strictly for semantic and printing while in | |
868 | * machine interface mode. | |
869 | */ | |
870 | strcpy(ev.name, "*"); | |
871 | ||
872 | /* If we reach here the events are enabled */ | |
873 | if (!error && !warn) { | |
874 | ev.enabled = 1; | |
875 | } else { | |
876 | ev.enabled = 0; | |
877 | success = 0; | |
878 | } | |
970d848b | 879 | ret = mi_lttng_event(writer, &ev, 1, handle->domain.type); |
89476427 JRJ |
880 | if (ret) { |
881 | ret = CMD_ERROR; | |
882 | goto error; | |
883 | } | |
884 | ||
885 | /* print exclusion */ | |
9f449915 | 886 | ret = mi_print_exclusion(exclusion_list); |
89476427 JRJ |
887 | if (ret) { |
888 | ret = CMD_ERROR; | |
889 | goto error; | |
890 | } | |
891 | ||
892 | /* Success ? */ | |
893 | ret = mi_lttng_writer_write_element_bool(writer, | |
894 | mi_lttng_element_command_success, success); | |
895 | if (ret) { | |
896 | ret = CMD_ERROR; | |
897 | goto error; | |
898 | } | |
899 | ||
900 | /* Close event element */ | |
901 | ret = mi_lttng_writer_close_element(writer); | |
902 | if (ret) { | |
903 | ret = CMD_ERROR; | |
904 | goto error; | |
905 | } | |
906 | } | |
907 | ||
8c9ae521 | 908 | goto end; |
f3ed775e DG |
909 | } |
910 | ||
911 | /* Strip event list */ | |
912 | event_name = strtok(opt_event_list, ","); | |
913 | while (event_name != NULL) { | |
6181537c DG |
914 | /* Copy name and type of the event */ |
915 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
916 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
917 | ev.type = opt_event_type; | |
918 | ||
f3ed775e DG |
919 | /* Kernel tracer action */ |
920 | if (opt_kernel) { | |
921 | DBG("Enabling kernel event %s for channel %s", | |
85076754 MD |
922 | event_name, |
923 | print_channel_name(channel_name)); | |
f3ed775e DG |
924 | |
925 | switch (opt_event_type) { | |
29c62722 MD |
926 | case LTTNG_EVENT_ALL: /* Enable tracepoints and syscalls */ |
927 | /* If event name differs from *, select tracepoint. */ | |
928 | if (strcmp(ev.name, "*")) { | |
929 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
930 | } | |
931 | break; | |
e6ddca71 | 932 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 933 | break; |
7d29a247 | 934 | case LTTNG_EVENT_PROBE: |
cf0e5467 | 935 | ret = parse_probe_opts(&ev, opt_probe); |
49d4e302 | 936 | if (ret) { |
cf0e5467 | 937 | ERR("Unable to parse probe options"); |
0d63dd19 DG |
938 | ret = 0; |
939 | goto error; | |
940 | } | |
f3ed775e DG |
941 | break; |
942 | case LTTNG_EVENT_FUNCTION: | |
8f0d098b | 943 | ret = parse_probe_opts(&ev, opt_function); |
49d4e302 | 944 | if (ret) { |
8f0d098b MD |
945 | ERR("Unable to parse function probe options"); |
946 | ret = 0; | |
947 | goto error; | |
948 | } | |
949 | break; | |
a54bd42d | 950 | case LTTNG_EVENT_SYSCALL: |
c6aa2d41 MD |
951 | ev.type = LTTNG_EVENT_SYSCALL; |
952 | break; | |
f3ed775e | 953 | default: |
1ab1ea0b | 954 | ret = CMD_UNDEFINED; |
f3ed775e DG |
955 | goto error; |
956 | } | |
0cda4f28 | 957 | |
0cda4f28 | 958 | /* kernel loglevels not implemented */ |
8005f29a | 959 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
f3ed775e | 960 | } else if (opt_userspace) { /* User-space tracer action */ |
300b8fd5 | 961 | DBG("Enabling UST event %s for channel %s, loglevel %s", event_name, |
85076754 | 962 | print_channel_name(channel_name), opt_loglevel ? : "<all>"); |
2bdd86d4 MD |
963 | |
964 | switch (opt_event_type) { | |
965 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
966 | /* Fall-through */ |
967 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e MD |
968 | /* Copy name and type of the event */ |
969 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
970 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
971 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 MD |
972 | break; |
973 | case LTTNG_EVENT_PROBE: | |
974 | case LTTNG_EVENT_FUNCTION: | |
2bdd86d4 MD |
975 | case LTTNG_EVENT_SYSCALL: |
976 | default: | |
cc62c0c0 | 977 | ERR("Event type not available for user-space tracing"); |
4ce78777 | 978 | ret = CMD_UNSUPPORTED; |
2bdd86d4 MD |
979 | goto error; |
980 | } | |
0cda4f28 | 981 | |
7ed70bc9 | 982 | if (opt_exclude) { |
89476427 | 983 | ev.exclusion = 1; |
d5dd17fd JI |
984 | if (opt_event_type != LTTNG_EVENT_ALL && opt_event_type != LTTNG_EVENT_TRACEPOINT) { |
985 | ERR("Exclusion option can only be used with tracepoint events"); | |
986 | ret = CMD_ERROR; | |
987 | goto error; | |
988 | } | |
7ed70bc9 | 989 | /* Free previously allocated items */ |
9f449915 PP |
990 | strutils_free_null_terminated_array_of_strings( |
991 | exclusion_list); | |
992 | exclusion_list = NULL; | |
993 | ret = create_exclusion_list_and_validate( | |
994 | event_name, opt_exclude, | |
995 | &exclusion_list); | |
996 | if (ret) { | |
997 | ret = CMD_ERROR; | |
7ed70bc9 JI |
998 | goto error; |
999 | } | |
502bbe89 PP |
1000 | |
1001 | warn_on_truncated_exclusion_names( | |
9f449915 | 1002 | exclusion_list, &warn); |
7ed70bc9 JI |
1003 | } |
1004 | ||
0cda4f28 | 1005 | ev.loglevel_type = opt_loglevel_type; |
ed7f4083 | 1006 | if (opt_loglevel) { |
8005f29a MD |
1007 | ev.loglevel = loglevel_str_to_value(opt_loglevel); |
1008 | if (ev.loglevel == -1) { | |
1009 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 1010 | ret = -LTTNG_ERR_INVALID; |
8005f29a MD |
1011 | goto error; |
1012 | } | |
22e25b71 MD |
1013 | } else { |
1014 | ev.loglevel = -1; | |
ed7f4083 | 1015 | } |
0e115563 | 1016 | } else if (opt_jul || opt_log4j || opt_python) { |
b9dfb167 DG |
1017 | if (opt_event_type != LTTNG_EVENT_ALL && |
1018 | opt_event_type != LTTNG_EVENT_TRACEPOINT) { | |
5cdb6027 | 1019 | ERR("Event type not supported for domain."); |
b9dfb167 DG |
1020 | ret = CMD_UNSUPPORTED; |
1021 | goto error; | |
1022 | } | |
b2064f54 DG |
1023 | |
1024 | ev.loglevel_type = opt_loglevel_type; | |
1025 | if (opt_loglevel) { | |
5cdb6027 DG |
1026 | if (opt_jul) { |
1027 | ev.loglevel = loglevel_jul_str_to_value(opt_loglevel); | |
1028 | } else if (opt_log4j) { | |
1029 | ev.loglevel = loglevel_log4j_str_to_value(opt_loglevel); | |
0e115563 DG |
1030 | } else if (opt_python) { |
1031 | ev.loglevel = loglevel_python_str_to_value(opt_loglevel); | |
5cdb6027 | 1032 | } |
b2064f54 DG |
1033 | if (ev.loglevel == -1) { |
1034 | ERR("Unknown loglevel %s", opt_loglevel); | |
1035 | ret = -LTTNG_ERR_INVALID; | |
1036 | goto error; | |
1037 | } | |
1038 | } else { | |
5cdb6027 DG |
1039 | if (opt_jul) { |
1040 | ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL; | |
1041 | } else if (opt_log4j) { | |
1042 | ev.loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; | |
0e115563 DG |
1043 | } else if (opt_python) { |
1044 | ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
5cdb6027 | 1045 | } |
b2064f54 | 1046 | } |
b9dfb167 DG |
1047 | ev.type = LTTNG_EVENT_TRACEPOINT; |
1048 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
1049 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
f3ed775e | 1050 | } else { |
3ecec76a | 1051 | assert(0); |
f3ed775e DG |
1052 | } |
1053 | ||
025faf73 | 1054 | if (!opt_filter) { |
9c48cab3 JI |
1055 | char *exclusion_string; |
1056 | ||
89476427 | 1057 | command_ret = lttng_enable_event_with_exclusions(handle, |
7ed70bc9 | 1058 | &ev, channel_name, |
9f449915 PP |
1059 | NULL, |
1060 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, | |
1061 | exclusion_list); | |
1062 | exclusion_string = print_exclusions(exclusion_list); | |
5ef79758 MD |
1063 | if (!exclusion_string) { |
1064 | PERROR("Cannot allocate exclusion_string"); | |
1065 | error = 1; | |
1066 | goto end; | |
1067 | } | |
89476427 | 1068 | if (command_ret < 0) { |
025faf73 | 1069 | /* Turn ret to positive value to handle the positive error code */ |
89476427 | 1070 | switch (-command_ret) { |
025faf73 | 1071 | case LTTNG_ERR_KERN_EVENT_EXIST: |
9c48cab3 | 1072 | WARN("Kernel event %s%s already enabled (channel %s, session %s)", |
85076754 | 1073 | event_name, |
9c48cab3 | 1074 | exclusion_string, |
85076754 | 1075 | print_channel_name(channel_name), session_name); |
89476427 | 1076 | warn = 1; |
025faf73 | 1077 | break; |
45d5d421 CB |
1078 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1079 | { | |
1080 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1081 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, | |
1082 | exclusion_string, | |
1083 | msg, | |
1084 | print_channel_name(channel_name), | |
1085 | session_name); | |
1086 | error = 1; | |
1087 | break; | |
1088 | } | |
025faf73 | 1089 | default: |
9c48cab3 JI |
1090 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, |
1091 | exclusion_string, | |
da3d7d0e JRJ |
1092 | lttng_strerror(command_ret), |
1093 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1094 | ? print_raw_channel_name(channel_name) |
1095 | : print_channel_name(channel_name), | |
1096 | session_name); | |
89476427 | 1097 | error = 1; |
025faf73 DG |
1098 | break; |
1099 | } | |
89476427 | 1100 | error_holder = command_ret; |
025faf73 | 1101 | } else { |
8274eeba AB |
1102 | switch (dom.type) { |
1103 | case LTTNG_DOMAIN_KERNEL: | |
1104 | case LTTNG_DOMAIN_UST: | |
49ceaa70 | 1105 | MSG("%s event %s%s created in channel %s", |
8274eeba AB |
1106 | get_domain_str(dom.type), |
1107 | event_name, | |
1108 | exclusion_string, | |
1109 | print_channel_name(channel_name)); | |
1110 | break; | |
1111 | case LTTNG_DOMAIN_JUL: | |
1112 | case LTTNG_DOMAIN_LOG4J: | |
1113 | case LTTNG_DOMAIN_PYTHON: | |
1114 | /* | |
1115 | * Don't print the default channel | |
1116 | * name for agent domains. | |
1117 | */ | |
895707da | 1118 | MSG("%s event %s%s enabled", |
8274eeba AB |
1119 | get_domain_str(dom.type), |
1120 | event_name, | |
1121 | exclusion_string); | |
1122 | break; | |
1123 | default: | |
1124 | assert(0); | |
49ceaa70 | 1125 | } |
42224349 | 1126 | } |
9c48cab3 | 1127 | free(exclusion_string); |
6181537c | 1128 | } |
025faf73 DG |
1129 | |
1130 | if (opt_filter) { | |
9c48cab3 JI |
1131 | char *exclusion_string; |
1132 | ||
89476427 JRJ |
1133 | /* Filter present */ |
1134 | ev.filter = 1; | |
1135 | ||
1136 | command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name, | |
9f449915 PP |
1137 | opt_filter, |
1138 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, | |
1139 | exclusion_list); | |
1140 | exclusion_string = print_exclusions(exclusion_list); | |
5ef79758 MD |
1141 | if (!exclusion_string) { |
1142 | PERROR("Cannot allocate exclusion_string"); | |
1143 | error = 1; | |
1144 | goto end; | |
1145 | } | |
89476427 JRJ |
1146 | if (command_ret < 0) { |
1147 | switch (-command_ret) { | |
7671f53c | 1148 | case LTTNG_ERR_FILTER_EXIST: |
9c48cab3 | 1149 | WARN("Filter on event %s%s is already enabled" |
7671f53c | 1150 | " (channel %s, session %s)", |
85076754 | 1151 | event_name, |
9c48cab3 | 1152 | exclusion_string, |
85076754 | 1153 | print_channel_name(channel_name), session_name); |
89476427 | 1154 | warn = 1; |
7671f53c | 1155 | break; |
45d5d421 CB |
1156 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1157 | { | |
1158 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1159 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name, | |
1160 | exclusion_string, | |
1161 | msg, | |
1162 | print_channel_name(channel_name), | |
1163 | session_name, opt_filter); | |
1164 | error = 1; | |
1165 | break; | |
1166 | } | |
7671f53c | 1167 | default: |
9c48cab3 JI |
1168 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name, |
1169 | exclusion_string, | |
da3d7d0e JRJ |
1170 | lttng_strerror(command_ret), |
1171 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1172 | ? print_raw_channel_name(channel_name) |
1173 | : print_channel_name(channel_name), | |
1174 | session_name, opt_filter); | |
89476427 | 1175 | error = 1; |
7671f53c CB |
1176 | break; |
1177 | } | |
89476427 JRJ |
1178 | error_holder = command_ret; |
1179 | ||
16363652 | 1180 | } else { |
9c48cab3 JI |
1181 | MSG("Event %s%s: Filter '%s' successfully set", |
1182 | event_name, exclusion_string, | |
1183 | opt_filter); | |
53a80697 | 1184 | } |
9c48cab3 | 1185 | free(exclusion_string); |
53a80697 | 1186 | } |
6181537c | 1187 | |
89476427 JRJ |
1188 | if (lttng_opt_mi) { |
1189 | if (command_ret) { | |
1190 | success = 0; | |
1191 | ev.enabled = 0; | |
1192 | } else { | |
1193 | ev.enabled = 1; | |
1194 | } | |
1195 | ||
970d848b | 1196 | ret = mi_lttng_event(writer, &ev, 1, handle->domain.type); |
89476427 JRJ |
1197 | if (ret) { |
1198 | ret = CMD_ERROR; | |
1199 | goto error; | |
1200 | } | |
1201 | ||
1202 | /* print exclusion */ | |
9f449915 | 1203 | ret = mi_print_exclusion(exclusion_list); |
89476427 JRJ |
1204 | if (ret) { |
1205 | ret = CMD_ERROR; | |
1206 | goto error; | |
1207 | } | |
1208 | ||
1209 | /* Success ? */ | |
1210 | ret = mi_lttng_writer_write_element_bool(writer, | |
1211 | mi_lttng_element_command_success, success); | |
1212 | if (ret) { | |
1213 | ret = CMD_ERROR; | |
1214 | goto end; | |
1215 | } | |
1216 | ||
1217 | /* Close event element */ | |
1218 | ret = mi_lttng_writer_close_element(writer); | |
1219 | if (ret) { | |
1220 | ret = CMD_ERROR; | |
1221 | goto end; | |
1222 | } | |
1223 | } | |
1224 | ||
f3ed775e DG |
1225 | /* Next event */ |
1226 | event_name = strtok(NULL, ","); | |
89476427 JRJ |
1227 | /* Reset warn, error and success */ |
1228 | success = 1; | |
f3ed775e DG |
1229 | } |
1230 | ||
8c9ae521 | 1231 | end: |
89476427 JRJ |
1232 | /* Close Mi */ |
1233 | if (lttng_opt_mi) { | |
1234 | /* Close events element */ | |
1235 | ret = mi_lttng_writer_close_element(writer); | |
1236 | if (ret) { | |
1237 | ret = CMD_ERROR; | |
1238 | goto error; | |
1239 | } | |
1240 | } | |
f3ed775e | 1241 | error: |
ae856491 DG |
1242 | if (warn) { |
1243 | ret = CMD_WARNING; | |
1244 | } | |
89476427 JRJ |
1245 | if (error) { |
1246 | ret = CMD_ERROR; | |
1247 | } | |
cd80958d | 1248 | lttng_destroy_handle(handle); |
9f449915 | 1249 | strutils_free_null_terminated_array_of_strings(exclusion_list); |
7ed70bc9 | 1250 | |
89476427 JRJ |
1251 | /* Overwrite ret with error_holder if there was an actual error with |
1252 | * enabling an event. | |
1253 | */ | |
1254 | ret = error_holder ? error_holder : ret; | |
1255 | ||
f3ed775e DG |
1256 | return ret; |
1257 | } | |
1258 | ||
1259 | /* | |
6181537c | 1260 | * Add event to trace session |
f3ed775e DG |
1261 | */ |
1262 | int cmd_enable_events(int argc, const char **argv) | |
1263 | { | |
89476427 | 1264 | int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1; |
f3ed775e | 1265 | static poptContext pc; |
cd80958d | 1266 | char *session_name = NULL; |
68c7f6e5 | 1267 | const char *leftover = NULL; |
de044b7a | 1268 | int event_type = -1; |
f3ed775e DG |
1269 | |
1270 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1271 | poptReadDefaultConfig(pc, 0); | |
1272 | ||
1273 | /* Default event type */ | |
7a3d1328 | 1274 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
1275 | |
1276 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1277 | switch (opt) { | |
1278 | case OPT_HELP: | |
4ba92f18 | 1279 | SHOW_HELP(); |
f3ed775e | 1280 | goto end; |
f3ed775e | 1281 | case OPT_TRACEPOINT: |
e6ddca71 | 1282 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 1283 | break; |
cf0e5467 | 1284 | case OPT_PROBE: |
7d29a247 | 1285 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e DG |
1286 | break; |
1287 | case OPT_FUNCTION: | |
1288 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b | 1289 | break; |
a54bd42d MD |
1290 | case OPT_SYSCALL: |
1291 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 1292 | break; |
eeac7d46 MD |
1293 | case OPT_USERSPACE: |
1294 | opt_userspace = 1; | |
eeac7d46 | 1295 | break; |
0cda4f28 | 1296 | case OPT_LOGLEVEL: |
8005f29a | 1297 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE; |
0cda4f28 MD |
1298 | opt_loglevel = poptGetOptArg(pc); |
1299 | break; | |
1300 | case OPT_LOGLEVEL_ONLY: | |
8005f29a | 1301 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE; |
0cda4f28 | 1302 | opt_loglevel = poptGetOptArg(pc); |
13dce3b7 | 1303 | break; |
679b4943 SM |
1304 | case OPT_LIST_OPTIONS: |
1305 | list_cmd_options(stdout, long_options); | |
679b4943 | 1306 | goto end; |
53a80697 MD |
1307 | case OPT_FILTER: |
1308 | break; | |
fac3366c JI |
1309 | case OPT_EXCLUDE: |
1310 | break; | |
f3ed775e | 1311 | default: |
f3ed775e DG |
1312 | ret = CMD_UNDEFINED; |
1313 | goto end; | |
1314 | } | |
de044b7a DG |
1315 | |
1316 | /* Validate event type. Multiple event type are not supported. */ | |
1317 | if (event_type == -1) { | |
1318 | event_type = opt_event_type; | |
1319 | } else { | |
1320 | if (event_type != opt_event_type) { | |
1321 | ERR("Multiple event type not supported."); | |
1322 | ret = CMD_ERROR; | |
1323 | goto end; | |
1324 | } | |
1325 | } | |
f3ed775e DG |
1326 | } |
1327 | ||
3ecec76a PP |
1328 | ret = print_missing_or_multiple_domains( |
1329 | opt_kernel + opt_userspace + opt_jul + opt_log4j + opt_python); | |
1330 | if (ret) { | |
1331 | ret = CMD_ERROR; | |
1332 | goto end; | |
1333 | } | |
1334 | ||
89476427 JRJ |
1335 | /* Mi check */ |
1336 | if (lttng_opt_mi) { | |
1337 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1338 | if (!writer) { | |
1339 | ret = -LTTNG_ERR_NOMEM; | |
1340 | goto end; | |
1341 | } | |
1342 | ||
1343 | /* Open command element */ | |
1344 | ret = mi_lttng_writer_command_open(writer, | |
1345 | mi_lttng_element_command_enable_event); | |
1346 | if (ret) { | |
1347 | ret = CMD_ERROR; | |
1348 | goto end; | |
1349 | } | |
1350 | ||
1351 | /* Open output element */ | |
1352 | ret = mi_lttng_writer_open_element(writer, | |
1353 | mi_lttng_element_command_output); | |
1354 | if (ret) { | |
1355 | ret = CMD_ERROR; | |
1356 | goto end; | |
1357 | } | |
1358 | } | |
1359 | ||
f3ed775e DG |
1360 | opt_event_list = (char*) poptGetArg(pc); |
1361 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
1362 | ERR("Missing event name(s).\n"); | |
ca1c3607 | 1363 | ret = CMD_ERROR; |
f3ed775e DG |
1364 | goto end; |
1365 | } | |
1366 | ||
68c7f6e5 JD |
1367 | leftover = poptGetArg(pc); |
1368 | if (leftover) { | |
1369 | ERR("Unknown argument: %s", leftover); | |
1370 | ret = CMD_ERROR; | |
1371 | goto end; | |
1372 | } | |
1373 | ||
cd80958d DG |
1374 | if (!opt_session_name) { |
1375 | session_name = get_session_name(); | |
1376 | if (session_name == NULL) { | |
89476427 JRJ |
1377 | command_ret = CMD_ERROR; |
1378 | success = 0; | |
1379 | goto mi_closing; | |
cd80958d DG |
1380 | } |
1381 | } else { | |
1382 | session_name = opt_session_name; | |
1383 | } | |
1384 | ||
89476427 JRJ |
1385 | command_ret = enable_events(session_name); |
1386 | if (command_ret) { | |
1387 | success = 0; | |
1388 | goto mi_closing; | |
1389 | } | |
1390 | ||
1391 | mi_closing: | |
1392 | /* Mi closing */ | |
1393 | if (lttng_opt_mi) { | |
1394 | /* Close output element */ | |
1395 | ret = mi_lttng_writer_close_element(writer); | |
1396 | if (ret) { | |
1397 | ret = CMD_ERROR; | |
1398 | goto end; | |
1399 | } | |
1400 | ||
1401 | ret = mi_lttng_writer_write_element_bool(writer, | |
1402 | mi_lttng_element_command_success, success); | |
1403 | if (ret) { | |
1404 | ret = CMD_ERROR; | |
1405 | goto end; | |
1406 | } | |
1407 | ||
1408 | /* Command element close */ | |
1409 | ret = mi_lttng_writer_command_close(writer); | |
1410 | if (ret) { | |
1411 | ret = CMD_ERROR; | |
1412 | goto end; | |
1413 | } | |
1414 | } | |
f3ed775e DG |
1415 | |
1416 | end: | |
89476427 JRJ |
1417 | /* Mi clean-up */ |
1418 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1419 | /* Preserve original error code */ | |
1420 | ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL; | |
1421 | } | |
1422 | ||
cd80958d DG |
1423 | if (opt_session_name == NULL) { |
1424 | free(session_name); | |
1425 | } | |
1426 | ||
89476427 JRJ |
1427 | /* Overwrite ret if an error occurred in enable_events */ |
1428 | ret = command_ret ? command_ret : ret; | |
1429 | ||
ca1c3607 | 1430 | poptFreeContext(pc); |
f3ed775e DG |
1431 | return ret; |
1432 | } | |
9f449915 | 1433 |