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 | |
42224349 | 29 | #include <src/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 | ||
507 | static | |
508 | int check_exclusions_subsets(const char *event_name, | |
509 | char * const *exclusions) | |
510 | { | |
511 | int ret = 0; | |
512 | char * const *item; | |
513 | ||
514 | for (item = exclusions; *item; item++) { | |
515 | ret = check_exclusion_subsets(event_name, *item); | |
516 | if (ret) { | |
517 | goto end; | |
518 | } | |
519 | } | |
520 | ||
521 | end: | |
522 | return ret; | |
523 | } | |
524 | ||
525 | static | |
526 | int create_exclusion_list_and_validate(const char *event_name, | |
527 | const char *exclusions_arg, | |
528 | char ***exclusion_list) | |
529 | { | |
530 | int ret = 0; | |
531 | char **exclusions = NULL; | |
532 | ||
533 | /* Event name must be a valid globbing pattern to allow exclusions. */ | |
534 | if (!strutils_is_star_glob_pattern(event_name)) { | |
535 | ERR("Event %s: Exclusions can only be used with a globbing pattern", | |
536 | event_name); | |
537 | goto error; | |
538 | } | |
539 | ||
540 | /* Split exclusions. */ | |
541 | exclusions = strutils_split(exclusions_arg, ',', true); | |
542 | if (!exclusions) { | |
543 | goto error; | |
544 | } | |
545 | ||
546 | /* | |
547 | * If the event name is a star-at-end only globbing pattern, | |
548 | * then we can validate the individual exclusions. Otherwise | |
549 | * all exclusions are passed to the session daemon. | |
550 | */ | |
551 | if (strutils_is_star_at_the_end_only_glob_pattern(event_name)) { | |
552 | char * const *exclusion; | |
553 | ||
554 | for (exclusion = exclusions; *exclusion; exclusion++) { | |
555 | if (!strutils_is_star_glob_pattern(*exclusion) || | |
556 | strutils_is_star_at_the_end_only_glob_pattern(*exclusion)) { | |
557 | ret = check_exclusions_subsets( | |
558 | event_name, exclusion); | |
559 | if (ret) { | |
5ef79758 MD |
560 | goto error; |
561 | } | |
748bde76 | 562 | } |
748bde76 JI |
563 | } |
564 | } | |
9f449915 PP |
565 | |
566 | *exclusion_list = exclusions; | |
567 | ||
748bde76 | 568 | goto end; |
9f449915 | 569 | |
748bde76 | 570 | error: |
9f449915 PP |
571 | ret = -1; |
572 | strutils_free_null_terminated_array_of_strings(exclusions); | |
573 | ||
748bde76 | 574 | end: |
748bde76 JI |
575 | return ret; |
576 | } | |
502bbe89 | 577 | |
9f449915 PP |
578 | static void warn_on_truncated_exclusion_names(char * const *exclusion_list, |
579 | int *warn) | |
502bbe89 | 580 | { |
9f449915 | 581 | char * const *exclusion; |
502bbe89 | 582 | |
9f449915 PP |
583 | for (exclusion = exclusion_list; *exclusion; exclusion++) { |
584 | if (strlen(*exclusion) >= LTTNG_SYMBOL_NAME_LEN) { | |
502bbe89 | 585 | WARN("Event exclusion \"%s\" will be truncated", |
9f449915 | 586 | *exclusion); |
502bbe89 PP |
587 | *warn = 1; |
588 | } | |
589 | } | |
590 | } | |
591 | ||
f3ed775e | 592 | /* |
6181537c | 593 | * Enabling event using the lttng API. |
89476427 | 594 | * Note: in case of error only the last error code will be return. |
f3ed775e | 595 | */ |
cd80958d | 596 | static int enable_events(char *session_name) |
f3ed775e | 597 | { |
89476427 JRJ |
598 | int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS; |
599 | int error_holder = CMD_SUCCESS, warn = 0, error = 0, success = 1; | |
b73d0b29 | 600 | char *event_name, *channel_name = NULL; |
f3ed775e | 601 | struct lttng_event ev; |
7d29a247 | 602 | struct lttng_domain dom; |
7ed70bc9 | 603 | char **exclusion_list = NULL; |
f3ed775e | 604 | |
441c16a7 MD |
605 | memset(&ev, 0, sizeof(ev)); |
606 | memset(&dom, 0, sizeof(dom)); | |
607 | ||
53a80697 | 608 | if (opt_kernel) { |
67b58630 JG |
609 | if (opt_loglevel) { |
610 | WARN("Kernel loglevels are not supported."); | |
611 | } | |
53a80697 MD |
612 | } |
613 | ||
7d29a247 DG |
614 | /* Create lttng domain */ |
615 | if (opt_kernel) { | |
616 | dom.type = LTTNG_DOMAIN_KERNEL; | |
7972aab2 | 617 | dom.buf_type = LTTNG_BUFFER_GLOBAL; |
d78d6610 | 618 | } else if (opt_userspace) { |
2bdd86d4 | 619 | dom.type = LTTNG_DOMAIN_UST; |
7972aab2 | 620 | /* Default. */ |
8692d4e5 | 621 | dom.buf_type = LTTNG_BUFFER_PER_UID; |
b9dfb167 DG |
622 | } else if (opt_jul) { |
623 | dom.type = LTTNG_DOMAIN_JUL; | |
624 | /* Default. */ | |
625 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
5cdb6027 DG |
626 | } else if (opt_log4j) { |
627 | dom.type = LTTNG_DOMAIN_LOG4J; | |
628 | /* Default. */ | |
629 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
0e115563 DG |
630 | } else if (opt_python) { |
631 | dom.type = LTTNG_DOMAIN_PYTHON; | |
632 | /* Default. */ | |
633 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
6181537c | 634 | } else { |
3ecec76a PP |
635 | /* Checked by the caller. */ |
636 | assert(0); | |
2bdd86d4 | 637 | } |
7d29a247 | 638 | |
8b08c525 AB |
639 | if (opt_exclude) { |
640 | switch (dom.type) { | |
641 | case LTTNG_DOMAIN_KERNEL: | |
642 | case LTTNG_DOMAIN_JUL: | |
643 | case LTTNG_DOMAIN_LOG4J: | |
644 | case LTTNG_DOMAIN_PYTHON: | |
645 | ERR("Event name exclusions are not yet implemented for %s events", | |
646 | get_domain_str(dom.type)); | |
647 | ret = CMD_ERROR; | |
648 | goto error; | |
649 | case LTTNG_DOMAIN_UST: | |
650 | /* Exclusions supported */ | |
651 | break; | |
652 | default: | |
653 | assert(0); | |
654 | } | |
d5dd17fd JI |
655 | } |
656 | ||
85076754 | 657 | channel_name = opt_channel_name; |
ae856491 | 658 | |
cd80958d DG |
659 | handle = lttng_create_handle(session_name, &dom); |
660 | if (handle == NULL) { | |
661 | ret = -1; | |
662 | goto error; | |
663 | } | |
1aef21b6 | 664 | |
89476427 JRJ |
665 | /* Prepare Mi */ |
666 | if (lttng_opt_mi) { | |
667 | /* Open a events element */ | |
668 | ret = mi_lttng_writer_open_element(writer, config_element_events); | |
669 | if (ret) { | |
670 | ret = CMD_ERROR; | |
671 | goto error; | |
672 | } | |
673 | } | |
674 | ||
cd80958d | 675 | if (opt_enable_all) { |
8c9ae521 | 676 | /* Default setup for enable all */ |
75e8c5ab MD |
677 | if (opt_kernel) { |
678 | ev.type = opt_event_type; | |
29c62722 | 679 | strcpy(ev.name, "*"); |
300b8fd5 MD |
680 | /* kernel loglevels not implemented */ |
681 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; | |
75e8c5ab MD |
682 | } else { |
683 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
684 | strcpy(ev.name, "*"); | |
300b8fd5 MD |
685 | ev.loglevel_type = opt_loglevel_type; |
686 | if (opt_loglevel) { | |
0e115563 | 687 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 DG |
688 | if (opt_userspace) { |
689 | ev.loglevel = loglevel_str_to_value(opt_loglevel); | |
690 | } else if (opt_jul) { | |
691 | ev.loglevel = loglevel_jul_str_to_value(opt_loglevel); | |
5cdb6027 DG |
692 | } else if (opt_log4j) { |
693 | ev.loglevel = loglevel_log4j_str_to_value(opt_loglevel); | |
0e115563 DG |
694 | } else if (opt_python) { |
695 | ev.loglevel = loglevel_python_str_to_value(opt_loglevel); | |
b2064f54 | 696 | } |
300b8fd5 MD |
697 | if (ev.loglevel == -1) { |
698 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 699 | ret = -LTTNG_ERR_INVALID; |
300b8fd5 MD |
700 | goto error; |
701 | } | |
22e25b71 | 702 | } else { |
0e115563 | 703 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 DG |
704 | if (opt_userspace) { |
705 | ev.loglevel = -1; | |
34aa3685 | 706 | } else if (opt_jul) { |
b2064f54 | 707 | ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL; |
34aa3685 JG |
708 | } else if (opt_log4j) { |
709 | ev.loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; | |
0e115563 DG |
710 | } else if (opt_python) { |
711 | ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
b2064f54 | 712 | } |
300b8fd5 | 713 | } |
75e8c5ab | 714 | } |
8c9ae521 | 715 | |
7ed70bc9 | 716 | if (opt_exclude) { |
9f449915 PP |
717 | ret = create_exclusion_list_and_validate("*", |
718 | opt_exclude, &exclusion_list); | |
719 | if (ret) { | |
720 | ret = CMD_ERROR; | |
7ed70bc9 JI |
721 | goto error; |
722 | } | |
502bbe89 | 723 | |
9f449915 | 724 | ev.exclusion = 1; |
502bbe89 | 725 | warn_on_truncated_exclusion_names(exclusion_list, |
9f449915 | 726 | &warn); |
7ed70bc9 | 727 | } |
025faf73 | 728 | if (!opt_filter) { |
7ed70bc9 JI |
729 | ret = lttng_enable_event_with_exclusions(handle, |
730 | &ev, channel_name, | |
731 | NULL, | |
9f449915 PP |
732 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, |
733 | exclusion_list); | |
025faf73 DG |
734 | if (ret < 0) { |
735 | switch (-ret) { | |
736 | case LTTNG_ERR_KERN_EVENT_EXIST: | |
737 | WARN("Kernel events already enabled (channel %s, session %s)", | |
85076754 | 738 | print_channel_name(channel_name), session_name); |
89476427 | 739 | warn = 1; |
025faf73 | 740 | break; |
45d5d421 CB |
741 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
742 | { | |
743 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
744 | ERR("Events: %s (channel %s, session %s)", | |
745 | msg, | |
746 | print_channel_name(channel_name), | |
747 | session_name); | |
748 | error = 1; | |
749 | break; | |
750 | } | |
025faf73 DG |
751 | default: |
752 | ERR("Events: %s (channel %s, session %s)", | |
85076754 MD |
753 | lttng_strerror(ret), |
754 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
755 | ? print_raw_channel_name(channel_name) | |
756 | : print_channel_name(channel_name), | |
757 | session_name); | |
89476427 | 758 | error = 1; |
025faf73 DG |
759 | break; |
760 | } | |
761 | goto end; | |
42224349 | 762 | } |
8c9ae521 | 763 | |
025faf73 DG |
764 | switch (opt_event_type) { |
765 | case LTTNG_EVENT_TRACEPOINT: | |
67b58630 | 766 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9f449915 | 767 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
768 | |
769 | if (!exclusion_string) { | |
770 | PERROR("Cannot allocate exclusion_string"); | |
771 | error = 1; | |
772 | goto end; | |
773 | } | |
9c48cab3 | 774 | MSG("All %s tracepoints%s are enabled in channel %s for loglevel %s", |
b9dfb167 | 775 | get_domain_str(dom.type), |
9c48cab3 | 776 | exclusion_string, |
85076754 | 777 | print_channel_name(channel_name), |
025faf73 | 778 | opt_loglevel); |
9c48cab3 | 779 | free(exclusion_string); |
025faf73 | 780 | } else { |
9f449915 | 781 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
782 | |
783 | if (!exclusion_string) { | |
784 | PERROR("Cannot allocate exclusion_string"); | |
785 | error = 1; | |
786 | goto end; | |
787 | } | |
9c48cab3 | 788 | MSG("All %s tracepoints%s are enabled in channel %s", |
b9dfb167 | 789 | get_domain_str(dom.type), |
9c48cab3 | 790 | exclusion_string, |
85076754 | 791 | print_channel_name(channel_name)); |
9c48cab3 | 792 | free(exclusion_string); |
025faf73 DG |
793 | } |
794 | break; | |
795 | case LTTNG_EVENT_SYSCALL: | |
796 | if (opt_kernel) { | |
6e911cad MD |
797 | MSG("All %s system calls are enabled in channel %s", |
798 | get_domain_str(dom.type), | |
85076754 | 799 | print_channel_name(channel_name)); |
025faf73 DG |
800 | } |
801 | break; | |
802 | case LTTNG_EVENT_ALL: | |
67b58630 | 803 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9f449915 | 804 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
805 | |
806 | if (!exclusion_string) { | |
807 | PERROR("Cannot allocate exclusion_string"); | |
808 | error = 1; | |
809 | goto end; | |
810 | } | |
9c48cab3 | 811 | MSG("All %s events%s are enabled in channel %s for loglevel %s", |
b9dfb167 | 812 | get_domain_str(dom.type), |
9c48cab3 | 813 | exclusion_string, |
85076754 | 814 | print_channel_name(channel_name), |
025faf73 | 815 | opt_loglevel); |
9c48cab3 | 816 | free(exclusion_string); |
025faf73 | 817 | } else { |
9f449915 | 818 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
819 | |
820 | if (!exclusion_string) { | |
821 | PERROR("Cannot allocate exclusion_string"); | |
822 | error = 1; | |
823 | goto end; | |
824 | } | |
9c48cab3 | 825 | MSG("All %s events%s are enabled in channel %s", |
b9dfb167 | 826 | get_domain_str(dom.type), |
9c48cab3 | 827 | exclusion_string, |
85076754 | 828 | print_channel_name(channel_name)); |
9c48cab3 | 829 | free(exclusion_string); |
025faf73 DG |
830 | } |
831 | break; | |
832 | default: | |
833 | /* | |
834 | * We should not be here since lttng_enable_event should have | |
835 | * failed on the event type. | |
836 | */ | |
837 | goto error; | |
57064ada | 838 | } |
f3ed775e | 839 | } |
89476427 | 840 | |
025faf73 | 841 | if (opt_filter) { |
89476427 | 842 | command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name, |
9f449915 PP |
843 | opt_filter, |
844 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, | |
845 | exclusion_list); | |
89476427 JRJ |
846 | if (command_ret < 0) { |
847 | switch (-command_ret) { | |
16363652 | 848 | case LTTNG_ERR_FILTER_EXIST: |
85076754 | 849 | WARN("Filter on all events is already enabled" |
16363652 | 850 | " (channel %s, session %s)", |
85076754 | 851 | print_channel_name(channel_name), session_name); |
89476427 | 852 | warn = 1; |
16363652 | 853 | break; |
45d5d421 CB |
854 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
855 | { | |
856 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
857 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", | |
858 | msg, | |
859 | print_channel_name(channel_name), | |
860 | session_name, opt_filter); | |
861 | error = 1; | |
862 | break; | |
863 | } | |
16363652 | 864 | default: |
85076754 | 865 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", |
da3d7d0e JRJ |
866 | lttng_strerror(command_ret), |
867 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
868 | ? print_raw_channel_name(channel_name) |
869 | : print_channel_name(channel_name), | |
870 | session_name, opt_filter); | |
89476427 | 871 | error = 1; |
16363652 DG |
872 | break; |
873 | } | |
89476427 | 874 | error_holder = command_ret; |
16363652 | 875 | } else { |
89476427 | 876 | ev.filter = 1; |
16363652 DG |
877 | MSG("Filter '%s' successfully set", opt_filter); |
878 | } | |
879 | } | |
89476427 JRJ |
880 | |
881 | if (lttng_opt_mi) { | |
882 | /* The wildcard * is used for kernel and ust domain to | |
883 | * represent ALL. We copy * in event name to force the wildcard use | |
884 | * for kernel domain | |
885 | * | |
886 | * Note: this is strictly for semantic and printing while in | |
887 | * machine interface mode. | |
888 | */ | |
889 | strcpy(ev.name, "*"); | |
890 | ||
891 | /* If we reach here the events are enabled */ | |
892 | if (!error && !warn) { | |
893 | ev.enabled = 1; | |
894 | } else { | |
895 | ev.enabled = 0; | |
896 | success = 0; | |
897 | } | |
970d848b | 898 | ret = mi_lttng_event(writer, &ev, 1, handle->domain.type); |
89476427 JRJ |
899 | if (ret) { |
900 | ret = CMD_ERROR; | |
901 | goto error; | |
902 | } | |
903 | ||
904 | /* print exclusion */ | |
9f449915 | 905 | ret = mi_print_exclusion(exclusion_list); |
89476427 JRJ |
906 | if (ret) { |
907 | ret = CMD_ERROR; | |
908 | goto error; | |
909 | } | |
910 | ||
911 | /* Success ? */ | |
912 | ret = mi_lttng_writer_write_element_bool(writer, | |
913 | mi_lttng_element_command_success, success); | |
914 | if (ret) { | |
915 | ret = CMD_ERROR; | |
916 | goto error; | |
917 | } | |
918 | ||
919 | /* Close event element */ | |
920 | ret = mi_lttng_writer_close_element(writer); | |
921 | if (ret) { | |
922 | ret = CMD_ERROR; | |
923 | goto error; | |
924 | } | |
925 | } | |
926 | ||
8c9ae521 | 927 | goto end; |
f3ed775e DG |
928 | } |
929 | ||
930 | /* Strip event list */ | |
931 | event_name = strtok(opt_event_list, ","); | |
932 | while (event_name != NULL) { | |
6181537c DG |
933 | /* Copy name and type of the event */ |
934 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
935 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
936 | ev.type = opt_event_type; | |
937 | ||
f3ed775e DG |
938 | /* Kernel tracer action */ |
939 | if (opt_kernel) { | |
940 | DBG("Enabling kernel event %s for channel %s", | |
85076754 MD |
941 | event_name, |
942 | print_channel_name(channel_name)); | |
f3ed775e DG |
943 | |
944 | switch (opt_event_type) { | |
29c62722 MD |
945 | case LTTNG_EVENT_ALL: /* Enable tracepoints and syscalls */ |
946 | /* If event name differs from *, select tracepoint. */ | |
947 | if (strcmp(ev.name, "*")) { | |
948 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
949 | } | |
950 | break; | |
e6ddca71 | 951 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 952 | break; |
7d29a247 | 953 | case LTTNG_EVENT_PROBE: |
cf0e5467 | 954 | ret = parse_probe_opts(&ev, opt_probe); |
49d4e302 | 955 | if (ret) { |
cf0e5467 | 956 | ERR("Unable to parse probe options"); |
0d63dd19 DG |
957 | ret = 0; |
958 | goto error; | |
959 | } | |
f3ed775e DG |
960 | break; |
961 | case LTTNG_EVENT_FUNCTION: | |
8f0d098b | 962 | ret = parse_probe_opts(&ev, opt_function); |
49d4e302 | 963 | if (ret) { |
8f0d098b MD |
964 | ERR("Unable to parse function probe options"); |
965 | ret = 0; | |
966 | goto error; | |
967 | } | |
968 | break; | |
a54bd42d | 969 | case LTTNG_EVENT_SYSCALL: |
c6aa2d41 MD |
970 | ev.type = LTTNG_EVENT_SYSCALL; |
971 | break; | |
f3ed775e | 972 | default: |
1ab1ea0b | 973 | ret = CMD_UNDEFINED; |
f3ed775e DG |
974 | goto error; |
975 | } | |
0cda4f28 | 976 | |
0cda4f28 | 977 | /* kernel loglevels not implemented */ |
8005f29a | 978 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
f3ed775e | 979 | } else if (opt_userspace) { /* User-space tracer action */ |
300b8fd5 | 980 | DBG("Enabling UST event %s for channel %s, loglevel %s", event_name, |
85076754 | 981 | print_channel_name(channel_name), opt_loglevel ? : "<all>"); |
2bdd86d4 MD |
982 | |
983 | switch (opt_event_type) { | |
984 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
985 | /* Fall-through */ |
986 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e MD |
987 | /* Copy name and type of the event */ |
988 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
989 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
990 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 MD |
991 | break; |
992 | case LTTNG_EVENT_PROBE: | |
993 | case LTTNG_EVENT_FUNCTION: | |
2bdd86d4 MD |
994 | case LTTNG_EVENT_SYSCALL: |
995 | default: | |
cc62c0c0 | 996 | ERR("Event type not available for user-space tracing"); |
4ce78777 | 997 | ret = CMD_UNSUPPORTED; |
2bdd86d4 MD |
998 | goto error; |
999 | } | |
0cda4f28 | 1000 | |
7ed70bc9 | 1001 | if (opt_exclude) { |
89476427 | 1002 | ev.exclusion = 1; |
d5dd17fd JI |
1003 | if (opt_event_type != LTTNG_EVENT_ALL && opt_event_type != LTTNG_EVENT_TRACEPOINT) { |
1004 | ERR("Exclusion option can only be used with tracepoint events"); | |
1005 | ret = CMD_ERROR; | |
1006 | goto error; | |
1007 | } | |
7ed70bc9 | 1008 | /* Free previously allocated items */ |
9f449915 PP |
1009 | strutils_free_null_terminated_array_of_strings( |
1010 | exclusion_list); | |
1011 | exclusion_list = NULL; | |
1012 | ret = create_exclusion_list_and_validate( | |
1013 | event_name, opt_exclude, | |
1014 | &exclusion_list); | |
1015 | if (ret) { | |
1016 | ret = CMD_ERROR; | |
7ed70bc9 JI |
1017 | goto error; |
1018 | } | |
502bbe89 PP |
1019 | |
1020 | warn_on_truncated_exclusion_names( | |
9f449915 | 1021 | exclusion_list, &warn); |
7ed70bc9 JI |
1022 | } |
1023 | ||
0cda4f28 | 1024 | ev.loglevel_type = opt_loglevel_type; |
ed7f4083 | 1025 | if (opt_loglevel) { |
8005f29a MD |
1026 | ev.loglevel = loglevel_str_to_value(opt_loglevel); |
1027 | if (ev.loglevel == -1) { | |
1028 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 1029 | ret = -LTTNG_ERR_INVALID; |
8005f29a MD |
1030 | goto error; |
1031 | } | |
22e25b71 MD |
1032 | } else { |
1033 | ev.loglevel = -1; | |
ed7f4083 | 1034 | } |
0e115563 | 1035 | } else if (opt_jul || opt_log4j || opt_python) { |
b9dfb167 DG |
1036 | if (opt_event_type != LTTNG_EVENT_ALL && |
1037 | opt_event_type != LTTNG_EVENT_TRACEPOINT) { | |
5cdb6027 | 1038 | ERR("Event type not supported for domain."); |
b9dfb167 DG |
1039 | ret = CMD_UNSUPPORTED; |
1040 | goto error; | |
1041 | } | |
b2064f54 DG |
1042 | |
1043 | ev.loglevel_type = opt_loglevel_type; | |
1044 | if (opt_loglevel) { | |
5cdb6027 DG |
1045 | if (opt_jul) { |
1046 | ev.loglevel = loglevel_jul_str_to_value(opt_loglevel); | |
1047 | } else if (opt_log4j) { | |
1048 | ev.loglevel = loglevel_log4j_str_to_value(opt_loglevel); | |
0e115563 DG |
1049 | } else if (opt_python) { |
1050 | ev.loglevel = loglevel_python_str_to_value(opt_loglevel); | |
5cdb6027 | 1051 | } |
b2064f54 DG |
1052 | if (ev.loglevel == -1) { |
1053 | ERR("Unknown loglevel %s", opt_loglevel); | |
1054 | ret = -LTTNG_ERR_INVALID; | |
1055 | goto error; | |
1056 | } | |
1057 | } else { | |
5cdb6027 DG |
1058 | if (opt_jul) { |
1059 | ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL; | |
1060 | } else if (opt_log4j) { | |
1061 | ev.loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; | |
0e115563 DG |
1062 | } else if (opt_python) { |
1063 | ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
5cdb6027 | 1064 | } |
b2064f54 | 1065 | } |
b9dfb167 DG |
1066 | ev.type = LTTNG_EVENT_TRACEPOINT; |
1067 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
1068 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
f3ed775e | 1069 | } else { |
3ecec76a | 1070 | assert(0); |
f3ed775e DG |
1071 | } |
1072 | ||
025faf73 | 1073 | if (!opt_filter) { |
9c48cab3 JI |
1074 | char *exclusion_string; |
1075 | ||
89476427 | 1076 | command_ret = lttng_enable_event_with_exclusions(handle, |
7ed70bc9 | 1077 | &ev, channel_name, |
9f449915 PP |
1078 | NULL, |
1079 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, | |
1080 | exclusion_list); | |
1081 | exclusion_string = print_exclusions(exclusion_list); | |
5ef79758 MD |
1082 | if (!exclusion_string) { |
1083 | PERROR("Cannot allocate exclusion_string"); | |
1084 | error = 1; | |
1085 | goto end; | |
1086 | } | |
89476427 | 1087 | if (command_ret < 0) { |
025faf73 | 1088 | /* Turn ret to positive value to handle the positive error code */ |
89476427 | 1089 | switch (-command_ret) { |
025faf73 | 1090 | case LTTNG_ERR_KERN_EVENT_EXIST: |
9c48cab3 | 1091 | WARN("Kernel event %s%s already enabled (channel %s, session %s)", |
85076754 | 1092 | event_name, |
9c48cab3 | 1093 | exclusion_string, |
85076754 | 1094 | print_channel_name(channel_name), session_name); |
89476427 | 1095 | warn = 1; |
025faf73 | 1096 | break; |
45d5d421 CB |
1097 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1098 | { | |
1099 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1100 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, | |
1101 | exclusion_string, | |
1102 | msg, | |
1103 | print_channel_name(channel_name), | |
1104 | session_name); | |
1105 | error = 1; | |
1106 | break; | |
1107 | } | |
025faf73 | 1108 | default: |
9c48cab3 JI |
1109 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, |
1110 | exclusion_string, | |
da3d7d0e JRJ |
1111 | lttng_strerror(command_ret), |
1112 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1113 | ? print_raw_channel_name(channel_name) |
1114 | : print_channel_name(channel_name), | |
1115 | session_name); | |
89476427 | 1116 | error = 1; |
025faf73 DG |
1117 | break; |
1118 | } | |
89476427 | 1119 | error_holder = command_ret; |
025faf73 | 1120 | } else { |
8274eeba AB |
1121 | switch (dom.type) { |
1122 | case LTTNG_DOMAIN_KERNEL: | |
1123 | case LTTNG_DOMAIN_UST: | |
49ceaa70 | 1124 | MSG("%s event %s%s created in channel %s", |
8274eeba AB |
1125 | get_domain_str(dom.type), |
1126 | event_name, | |
1127 | exclusion_string, | |
1128 | print_channel_name(channel_name)); | |
1129 | break; | |
1130 | case LTTNG_DOMAIN_JUL: | |
1131 | case LTTNG_DOMAIN_LOG4J: | |
1132 | case LTTNG_DOMAIN_PYTHON: | |
1133 | /* | |
1134 | * Don't print the default channel | |
1135 | * name for agent domains. | |
1136 | */ | |
895707da | 1137 | MSG("%s event %s%s enabled", |
8274eeba AB |
1138 | get_domain_str(dom.type), |
1139 | event_name, | |
1140 | exclusion_string); | |
1141 | break; | |
1142 | default: | |
1143 | assert(0); | |
49ceaa70 | 1144 | } |
42224349 | 1145 | } |
9c48cab3 | 1146 | free(exclusion_string); |
6181537c | 1147 | } |
025faf73 DG |
1148 | |
1149 | if (opt_filter) { | |
9c48cab3 JI |
1150 | char *exclusion_string; |
1151 | ||
89476427 JRJ |
1152 | /* Filter present */ |
1153 | ev.filter = 1; | |
1154 | ||
1155 | command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name, | |
9f449915 PP |
1156 | opt_filter, |
1157 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, | |
1158 | exclusion_list); | |
1159 | exclusion_string = print_exclusions(exclusion_list); | |
5ef79758 MD |
1160 | if (!exclusion_string) { |
1161 | PERROR("Cannot allocate exclusion_string"); | |
1162 | error = 1; | |
1163 | goto end; | |
1164 | } | |
89476427 JRJ |
1165 | if (command_ret < 0) { |
1166 | switch (-command_ret) { | |
7671f53c | 1167 | case LTTNG_ERR_FILTER_EXIST: |
9c48cab3 | 1168 | WARN("Filter on event %s%s is already enabled" |
7671f53c | 1169 | " (channel %s, session %s)", |
85076754 | 1170 | event_name, |
9c48cab3 | 1171 | exclusion_string, |
85076754 | 1172 | print_channel_name(channel_name), session_name); |
89476427 | 1173 | warn = 1; |
7671f53c | 1174 | break; |
45d5d421 CB |
1175 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1176 | { | |
1177 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1178 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name, | |
1179 | exclusion_string, | |
1180 | msg, | |
1181 | print_channel_name(channel_name), | |
1182 | session_name, opt_filter); | |
1183 | error = 1; | |
1184 | break; | |
1185 | } | |
7671f53c | 1186 | default: |
9c48cab3 JI |
1187 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name, |
1188 | exclusion_string, | |
da3d7d0e JRJ |
1189 | lttng_strerror(command_ret), |
1190 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1191 | ? print_raw_channel_name(channel_name) |
1192 | : print_channel_name(channel_name), | |
1193 | session_name, opt_filter); | |
89476427 | 1194 | error = 1; |
7671f53c CB |
1195 | break; |
1196 | } | |
89476427 JRJ |
1197 | error_holder = command_ret; |
1198 | ||
16363652 | 1199 | } else { |
9c48cab3 JI |
1200 | MSG("Event %s%s: Filter '%s' successfully set", |
1201 | event_name, exclusion_string, | |
1202 | opt_filter); | |
53a80697 | 1203 | } |
9c48cab3 | 1204 | free(exclusion_string); |
53a80697 | 1205 | } |
6181537c | 1206 | |
89476427 JRJ |
1207 | if (lttng_opt_mi) { |
1208 | if (command_ret) { | |
1209 | success = 0; | |
1210 | ev.enabled = 0; | |
1211 | } else { | |
1212 | ev.enabled = 1; | |
1213 | } | |
1214 | ||
970d848b | 1215 | ret = mi_lttng_event(writer, &ev, 1, handle->domain.type); |
89476427 JRJ |
1216 | if (ret) { |
1217 | ret = CMD_ERROR; | |
1218 | goto error; | |
1219 | } | |
1220 | ||
1221 | /* print exclusion */ | |
9f449915 | 1222 | ret = mi_print_exclusion(exclusion_list); |
89476427 JRJ |
1223 | if (ret) { |
1224 | ret = CMD_ERROR; | |
1225 | goto error; | |
1226 | } | |
1227 | ||
1228 | /* Success ? */ | |
1229 | ret = mi_lttng_writer_write_element_bool(writer, | |
1230 | mi_lttng_element_command_success, success); | |
1231 | if (ret) { | |
1232 | ret = CMD_ERROR; | |
1233 | goto end; | |
1234 | } | |
1235 | ||
1236 | /* Close event element */ | |
1237 | ret = mi_lttng_writer_close_element(writer); | |
1238 | if (ret) { | |
1239 | ret = CMD_ERROR; | |
1240 | goto end; | |
1241 | } | |
1242 | } | |
1243 | ||
f3ed775e DG |
1244 | /* Next event */ |
1245 | event_name = strtok(NULL, ","); | |
89476427 JRJ |
1246 | /* Reset warn, error and success */ |
1247 | success = 1; | |
f3ed775e DG |
1248 | } |
1249 | ||
8c9ae521 | 1250 | end: |
89476427 JRJ |
1251 | /* Close Mi */ |
1252 | if (lttng_opt_mi) { | |
1253 | /* Close events element */ | |
1254 | ret = mi_lttng_writer_close_element(writer); | |
1255 | if (ret) { | |
1256 | ret = CMD_ERROR; | |
1257 | goto error; | |
1258 | } | |
1259 | } | |
f3ed775e | 1260 | error: |
ae856491 DG |
1261 | if (warn) { |
1262 | ret = CMD_WARNING; | |
1263 | } | |
89476427 JRJ |
1264 | if (error) { |
1265 | ret = CMD_ERROR; | |
1266 | } | |
cd80958d | 1267 | lttng_destroy_handle(handle); |
9f449915 | 1268 | strutils_free_null_terminated_array_of_strings(exclusion_list); |
7ed70bc9 | 1269 | |
89476427 JRJ |
1270 | /* Overwrite ret with error_holder if there was an actual error with |
1271 | * enabling an event. | |
1272 | */ | |
1273 | ret = error_holder ? error_holder : ret; | |
1274 | ||
f3ed775e DG |
1275 | return ret; |
1276 | } | |
1277 | ||
1278 | /* | |
6181537c | 1279 | * Add event to trace session |
f3ed775e DG |
1280 | */ |
1281 | int cmd_enable_events(int argc, const char **argv) | |
1282 | { | |
89476427 | 1283 | int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1; |
f3ed775e | 1284 | static poptContext pc; |
cd80958d | 1285 | char *session_name = NULL; |
de044b7a | 1286 | int event_type = -1; |
f3ed775e DG |
1287 | |
1288 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1289 | poptReadDefaultConfig(pc, 0); | |
1290 | ||
1291 | /* Default event type */ | |
7a3d1328 | 1292 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
1293 | |
1294 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1295 | switch (opt) { | |
1296 | case OPT_HELP: | |
4ba92f18 | 1297 | SHOW_HELP(); |
f3ed775e | 1298 | goto end; |
f3ed775e | 1299 | case OPT_TRACEPOINT: |
e6ddca71 | 1300 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 1301 | break; |
cf0e5467 | 1302 | case OPT_PROBE: |
7d29a247 | 1303 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e DG |
1304 | break; |
1305 | case OPT_FUNCTION: | |
1306 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b | 1307 | break; |
a54bd42d MD |
1308 | case OPT_SYSCALL: |
1309 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 1310 | break; |
eeac7d46 MD |
1311 | case OPT_USERSPACE: |
1312 | opt_userspace = 1; | |
eeac7d46 | 1313 | break; |
0cda4f28 | 1314 | case OPT_LOGLEVEL: |
8005f29a | 1315 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE; |
0cda4f28 MD |
1316 | opt_loglevel = poptGetOptArg(pc); |
1317 | break; | |
1318 | case OPT_LOGLEVEL_ONLY: | |
8005f29a | 1319 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE; |
0cda4f28 | 1320 | opt_loglevel = poptGetOptArg(pc); |
13dce3b7 | 1321 | break; |
679b4943 SM |
1322 | case OPT_LIST_OPTIONS: |
1323 | list_cmd_options(stdout, long_options); | |
679b4943 | 1324 | goto end; |
53a80697 MD |
1325 | case OPT_FILTER: |
1326 | break; | |
fac3366c JI |
1327 | case OPT_EXCLUDE: |
1328 | break; | |
f3ed775e | 1329 | default: |
f3ed775e DG |
1330 | ret = CMD_UNDEFINED; |
1331 | goto end; | |
1332 | } | |
de044b7a DG |
1333 | |
1334 | /* Validate event type. Multiple event type are not supported. */ | |
1335 | if (event_type == -1) { | |
1336 | event_type = opt_event_type; | |
1337 | } else { | |
1338 | if (event_type != opt_event_type) { | |
1339 | ERR("Multiple event type not supported."); | |
1340 | ret = CMD_ERROR; | |
1341 | goto end; | |
1342 | } | |
1343 | } | |
f3ed775e DG |
1344 | } |
1345 | ||
3ecec76a PP |
1346 | ret = print_missing_or_multiple_domains( |
1347 | opt_kernel + opt_userspace + opt_jul + opt_log4j + opt_python); | |
1348 | if (ret) { | |
1349 | ret = CMD_ERROR; | |
1350 | goto end; | |
1351 | } | |
1352 | ||
89476427 JRJ |
1353 | /* Mi check */ |
1354 | if (lttng_opt_mi) { | |
1355 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1356 | if (!writer) { | |
1357 | ret = -LTTNG_ERR_NOMEM; | |
1358 | goto end; | |
1359 | } | |
1360 | ||
1361 | /* Open command element */ | |
1362 | ret = mi_lttng_writer_command_open(writer, | |
1363 | mi_lttng_element_command_enable_event); | |
1364 | if (ret) { | |
1365 | ret = CMD_ERROR; | |
1366 | goto end; | |
1367 | } | |
1368 | ||
1369 | /* Open output element */ | |
1370 | ret = mi_lttng_writer_open_element(writer, | |
1371 | mi_lttng_element_command_output); | |
1372 | if (ret) { | |
1373 | ret = CMD_ERROR; | |
1374 | goto end; | |
1375 | } | |
1376 | } | |
1377 | ||
f3ed775e DG |
1378 | opt_event_list = (char*) poptGetArg(pc); |
1379 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
1380 | ERR("Missing event name(s).\n"); | |
ca1c3607 | 1381 | ret = CMD_ERROR; |
f3ed775e DG |
1382 | goto end; |
1383 | } | |
1384 | ||
cd80958d DG |
1385 | if (!opt_session_name) { |
1386 | session_name = get_session_name(); | |
1387 | if (session_name == NULL) { | |
89476427 JRJ |
1388 | command_ret = CMD_ERROR; |
1389 | success = 0; | |
1390 | goto mi_closing; | |
cd80958d DG |
1391 | } |
1392 | } else { | |
1393 | session_name = opt_session_name; | |
1394 | } | |
1395 | ||
89476427 JRJ |
1396 | command_ret = enable_events(session_name); |
1397 | if (command_ret) { | |
1398 | success = 0; | |
1399 | goto mi_closing; | |
1400 | } | |
1401 | ||
1402 | mi_closing: | |
1403 | /* Mi closing */ | |
1404 | if (lttng_opt_mi) { | |
1405 | /* Close output element */ | |
1406 | ret = mi_lttng_writer_close_element(writer); | |
1407 | if (ret) { | |
1408 | ret = CMD_ERROR; | |
1409 | goto end; | |
1410 | } | |
1411 | ||
1412 | ret = mi_lttng_writer_write_element_bool(writer, | |
1413 | mi_lttng_element_command_success, success); | |
1414 | if (ret) { | |
1415 | ret = CMD_ERROR; | |
1416 | goto end; | |
1417 | } | |
1418 | ||
1419 | /* Command element close */ | |
1420 | ret = mi_lttng_writer_command_close(writer); | |
1421 | if (ret) { | |
1422 | ret = CMD_ERROR; | |
1423 | goto end; | |
1424 | } | |
1425 | } | |
f3ed775e DG |
1426 | |
1427 | end: | |
89476427 JRJ |
1428 | /* Mi clean-up */ |
1429 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1430 | /* Preserve original error code */ | |
1431 | ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL; | |
1432 | } | |
1433 | ||
cd80958d DG |
1434 | if (opt_session_name == NULL) { |
1435 | free(session_name); | |
1436 | } | |
1437 | ||
89476427 JRJ |
1438 | /* Overwrite ret if an error occurred in enable_events */ |
1439 | ret = command_ret ? command_ret : ret; | |
1440 | ||
ca1c3607 | 1441 | poptFreeContext(pc); |
f3ed775e DG |
1442 | return ret; |
1443 | } | |
9f449915 | 1444 |