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> |
f3ed775e | 31 | |
89476427 JRJ |
32 | /* Mi dependancy */ |
33 | #include <common/mi-lttng.h> | |
34 | ||
35 | #include "../command.h" | |
36 | ||
8ab7c0d9 MD |
37 | #if (LTTNG_SYMBOL_NAME_LEN == 256) |
38 | #define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255" | |
39 | #endif | |
40 | ||
f3ed775e DG |
41 | static char *opt_event_list; |
42 | static int opt_event_type; | |
0cda4f28 MD |
43 | static const char *opt_loglevel; |
44 | static int opt_loglevel_type; | |
6181537c | 45 | static int opt_kernel; |
5440dc42 | 46 | static char *opt_session_name; |
f3ed775e | 47 | static int opt_userspace; |
b9dfb167 | 48 | static int opt_jul; |
5cdb6027 | 49 | static int opt_log4j; |
0e115563 | 50 | static int opt_python; |
f3ed775e | 51 | static int opt_enable_all; |
cf0e5467 | 52 | static char *opt_probe; |
8f0d098b | 53 | static char *opt_function; |
f3ed775e | 54 | static char *opt_channel_name; |
53a80697 | 55 | static char *opt_filter; |
fac3366c | 56 | static char *opt_exclude; |
f3ed775e DG |
57 | |
58 | enum { | |
59 | OPT_HELP = 1, | |
f3ed775e | 60 | OPT_TRACEPOINT, |
cf0e5467 | 61 | OPT_PROBE, |
f3ed775e | 62 | OPT_FUNCTION, |
a54bd42d | 63 | OPT_SYSCALL, |
eeac7d46 | 64 | OPT_USERSPACE, |
0cda4f28 MD |
65 | OPT_LOGLEVEL, |
66 | OPT_LOGLEVEL_ONLY, | |
679b4943 | 67 | OPT_LIST_OPTIONS, |
53a80697 | 68 | OPT_FILTER, |
fac3366c | 69 | OPT_EXCLUDE, |
f3ed775e DG |
70 | }; |
71 | ||
cd80958d | 72 | static struct lttng_handle *handle; |
89476427 | 73 | static struct mi_writer *writer; |
cd80958d | 74 | |
f3ed775e DG |
75 | static struct poptOption long_options[] = { |
76 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
77 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 78 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e14f64a8 | 79 | {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0}, |
f3ed775e DG |
80 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
81 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, | |
d78d6610 | 82 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, |
b9dfb167 | 83 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
5cdb6027 | 84 | {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, |
0e115563 | 85 | {"python", 'p', POPT_ARG_VAL, &opt_python, 1, 0, 0}, |
f3ed775e | 86 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0}, |
7ebae521 | 87 | {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0}, |
40e9d5d3 | 88 | {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0}, |
7ebae521 | 89 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0}, |
0cda4f28 MD |
90 | {"loglevel", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL, 0, 0}, |
91 | {"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0}, | |
679b4943 | 92 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
53a80697 | 93 | {"filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0}, |
fac3366c | 94 | {"exclude", 'x', POPT_ARG_STRING, &opt_exclude, OPT_EXCLUDE, 0, 0}, |
f3ed775e DG |
95 | {0, 0, 0, 0, 0, 0, 0} |
96 | }; | |
97 | ||
0d63dd19 | 98 | /* |
6181537c | 99 | * Parse probe options. |
0d63dd19 | 100 | */ |
cf0e5467 | 101 | static int parse_probe_opts(struct lttng_event *ev, char *opt) |
0d63dd19 | 102 | { |
49d4e302 JRJ |
103 | int ret = CMD_SUCCESS; |
104 | int match; | |
8ff0bbd0 | 105 | char s_hex[19]; |
8ab7c0d9 | 106 | #define S_HEX_LEN_SCANF_IS_A_BROKEN_API "18" /* 18 is (19 - 1) (\0 is extra) */ |
0d63dd19 DG |
107 | char name[LTTNG_SYMBOL_NAME_LEN]; |
108 | ||
109 | if (opt == NULL) { | |
49d4e302 | 110 | ret = CMD_ERROR; |
8f0d098b | 111 | goto end; |
0d63dd19 DG |
112 | } |
113 | ||
114 | /* Check for symbol+offset */ | |
49d4e302 | 115 | match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API |
8ab7c0d9 | 116 | "[^'+']+%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", name, s_hex); |
49d4e302 | 117 | if (match == 2) { |
7d29a247 | 118 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 119 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
cf0e5467 | 120 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
9d035200 | 121 | if (*s_hex == '\0') { |
8ff0bbd0 | 122 | ERR("Invalid probe offset %s", s_hex); |
49d4e302 | 123 | ret = CMD_ERROR; |
8f0d098b | 124 | goto end; |
0d63dd19 | 125 | } |
8ff0bbd0 | 126 | ev->attr.probe.offset = strtoul(s_hex, NULL, 0); |
cf0e5467 | 127 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); |
3000dc78 | 128 | ev->attr.probe.addr = 0; |
8f0d098b MD |
129 | goto end; |
130 | } | |
131 | ||
132 | /* Check for symbol */ | |
133 | if (isalpha(name[0])) { | |
49d4e302 | 134 | match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s", |
8ab7c0d9 | 135 | name); |
49d4e302 | 136 | if (match == 1) { |
8f0d098b | 137 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 138 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
8f0d098b MD |
139 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
140 | ev->attr.probe.offset = 0; | |
141 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); | |
142 | ev->attr.probe.addr = 0; | |
143 | goto end; | |
144 | } | |
0d63dd19 DG |
145 | } |
146 | ||
147 | /* Check for address */ | |
49d4e302 JRJ |
148 | match = sscanf(opt, "%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", s_hex); |
149 | if (match > 0) { | |
9d035200 | 150 | if (*s_hex == '\0') { |
8ff0bbd0 | 151 | ERR("Invalid probe address %s", s_hex); |
49d4e302 | 152 | ret = CMD_ERROR; |
8f0d098b | 153 | goto end; |
0d63dd19 | 154 | } |
8ff0bbd0 | 155 | ev->attr.probe.addr = strtoul(s_hex, NULL, 0); |
cf0e5467 | 156 | DBG("probe addr %" PRIu64, ev->attr.probe.addr); |
3000dc78 DG |
157 | ev->attr.probe.offset = 0; |
158 | memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN); | |
8f0d098b | 159 | goto end; |
0d63dd19 DG |
160 | } |
161 | ||
162 | /* No match */ | |
49d4e302 | 163 | ret = CMD_ERROR; |
0d63dd19 | 164 | |
8f0d098b | 165 | end: |
0d63dd19 DG |
166 | return ret; |
167 | } | |
168 | ||
5cdb6027 DG |
169 | /* |
170 | * Maps LOG4j loglevel from string to value | |
171 | */ | |
172 | static int loglevel_log4j_str_to_value(const char *inputstr) | |
173 | { | |
174 | int i = 0; | |
175 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
176 | ||
3712b110 JG |
177 | if (!inputstr || strlen(inputstr) == 0) { |
178 | return -1; | |
179 | } | |
180 | ||
5cdb6027 DG |
181 | /* |
182 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
183 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
184 | */ | |
185 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
186 | str[i] = toupper(inputstr[i]); | |
187 | i++; | |
188 | } | |
189 | str[i] = '\0'; | |
190 | ||
191 | if (!strcmp(str, "LOG4J_OFF") || !strcmp(str, "OFF")) { | |
192 | return LTTNG_LOGLEVEL_LOG4J_OFF; | |
193 | } else if (!strcmp(str, "LOG4J_FATAL") || !strcmp(str, "FATAL")) { | |
194 | return LTTNG_LOGLEVEL_LOG4J_FATAL; | |
195 | } else if (!strcmp(str, "LOG4J_ERROR") || !strcmp(str, "ERROR")) { | |
196 | return LTTNG_LOGLEVEL_LOG4J_ERROR; | |
197 | } else if (!strcmp(str, "LOG4J_WARN") || !strcmp(str, "WARN")) { | |
198 | return LTTNG_LOGLEVEL_LOG4J_WARN; | |
199 | } else if (!strcmp(str, "LOG4J_INFO") || !strcmp(str, "INFO")) { | |
200 | return LTTNG_LOGLEVEL_LOG4J_INFO; | |
201 | } else if (!strcmp(str, "LOG4J_DEBUG") || !strcmp(str, "DEBUG")) { | |
202 | return LTTNG_LOGLEVEL_LOG4J_DEBUG; | |
203 | } else if (!strcmp(str, "LOG4J_TRACE") || !strcmp(str, "TRACE")) { | |
204 | return LTTNG_LOGLEVEL_LOG4J_TRACE; | |
205 | } else if (!strcmp(str, "LOG4J_ALL") || !strcmp(str, "ALL")) { | |
206 | return LTTNG_LOGLEVEL_LOG4J_ALL; | |
207 | } else { | |
208 | return -1; | |
209 | } | |
210 | } | |
211 | ||
b2064f54 DG |
212 | /* |
213 | * Maps JUL loglevel from string to value | |
214 | */ | |
215 | static int loglevel_jul_str_to_value(const char *inputstr) | |
216 | { | |
217 | int i = 0; | |
218 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
219 | ||
3712b110 JG |
220 | if (!inputstr || strlen(inputstr) == 0) { |
221 | return -1; | |
222 | } | |
223 | ||
b2064f54 DG |
224 | /* |
225 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
226 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
227 | */ | |
228 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
229 | str[i] = toupper(inputstr[i]); | |
230 | i++; | |
231 | } | |
232 | str[i] = '\0'; | |
233 | ||
234 | if (!strcmp(str, "JUL_OFF") || !strcmp(str, "OFF")) { | |
235 | return LTTNG_LOGLEVEL_JUL_OFF; | |
236 | } else if (!strcmp(str, "JUL_SEVERE") || !strcmp(str, "SEVERE")) { | |
237 | return LTTNG_LOGLEVEL_JUL_SEVERE; | |
238 | } else if (!strcmp(str, "JUL_WARNING") || !strcmp(str, "WARNING")) { | |
239 | return LTTNG_LOGLEVEL_JUL_WARNING; | |
240 | } else if (!strcmp(str, "JUL_INFO") || !strcmp(str, "INFO")) { | |
241 | return LTTNG_LOGLEVEL_JUL_INFO; | |
242 | } else if (!strcmp(str, "JUL_CONFIG") || !strcmp(str, "CONFIG")) { | |
243 | return LTTNG_LOGLEVEL_JUL_CONFIG; | |
244 | } else if (!strcmp(str, "JUL_FINE") || !strcmp(str, "FINE")) { | |
245 | return LTTNG_LOGLEVEL_JUL_FINE; | |
246 | } else if (!strcmp(str, "JUL_FINER") || !strcmp(str, "FINER")) { | |
247 | return LTTNG_LOGLEVEL_JUL_FINER; | |
248 | } else if (!strcmp(str, "JUL_FINEST") || !strcmp(str, "FINEST")) { | |
249 | return LTTNG_LOGLEVEL_JUL_FINEST; | |
250 | } else if (!strcmp(str, "JUL_ALL") || !strcmp(str, "ALL")) { | |
251 | return LTTNG_LOGLEVEL_JUL_ALL; | |
252 | } else { | |
253 | return -1; | |
254 | } | |
255 | } | |
256 | ||
0e115563 DG |
257 | /* |
258 | * Maps Python loglevel from string to value | |
259 | */ | |
260 | static int loglevel_python_str_to_value(const char *inputstr) | |
261 | { | |
262 | int i = 0; | |
263 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
264 | ||
3712b110 JG |
265 | if (!inputstr || strlen(inputstr) == 0) { |
266 | return -1; | |
267 | } | |
268 | ||
0e115563 DG |
269 | /* |
270 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
271 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
272 | */ | |
273 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
274 | str[i] = toupper(inputstr[i]); | |
275 | i++; | |
276 | } | |
277 | str[i] = '\0'; | |
278 | ||
279 | if (!strcmp(str, "PYTHON_CRITICAL") || !strcmp(str, "CRITICAL")) { | |
280 | return LTTNG_LOGLEVEL_PYTHON_CRITICAL; | |
281 | } else if (!strcmp(str, "PYTHON_ERROR") || !strcmp(str, "ERROR")) { | |
282 | return LTTNG_LOGLEVEL_PYTHON_ERROR; | |
283 | } else if (!strcmp(str, "PYTHON_WARNING") || !strcmp(str, "WARNING")) { | |
284 | return LTTNG_LOGLEVEL_PYTHON_WARNING; | |
285 | } else if (!strcmp(str, "PYTHON_INFO") || !strcmp(str, "INFO")) { | |
286 | return LTTNG_LOGLEVEL_PYTHON_INFO; | |
287 | } else if (!strcmp(str, "PYTNON_DEBUG") || !strcmp(str, "DEBUG")) { | |
288 | return LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
289 | } else if (!strcmp(str, "PYTHON_NOTSET") || !strcmp(str, "NOTSET")) { | |
290 | return LTTNG_LOGLEVEL_PYTHON_NOTSET; | |
291 | } else { | |
292 | return -1; | |
293 | } | |
294 | } | |
295 | ||
8005f29a | 296 | /* |
0c8477c8 | 297 | * Maps loglevel from string to value |
8005f29a MD |
298 | */ |
299 | static | |
46839cc2 | 300 | int loglevel_str_to_value(const char *inputstr) |
8005f29a | 301 | { |
46839cc2 MD |
302 | int i = 0; |
303 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
304 | ||
3712b110 JG |
305 | if (!inputstr || strlen(inputstr) == 0) { |
306 | return -1; | |
307 | } | |
308 | ||
e051e07c DG |
309 | /* |
310 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
311 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
312 | */ | |
313 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
46839cc2 MD |
314 | str[i] = toupper(inputstr[i]); |
315 | i++; | |
316 | } | |
317 | str[i] = '\0'; | |
318 | if (!strcmp(str, "TRACE_EMERG") || !strcmp(str, "EMERG")) { | |
319 | return LTTNG_LOGLEVEL_EMERG; | |
320 | } else if (!strcmp(str, "TRACE_ALERT") || !strcmp(str, "ALERT")) { | |
321 | return LTTNG_LOGLEVEL_ALERT; | |
322 | } else if (!strcmp(str, "TRACE_CRIT") || !strcmp(str, "CRIT")) { | |
323 | return LTTNG_LOGLEVEL_CRIT; | |
324 | } else if (!strcmp(str, "TRACE_ERR") || !strcmp(str, "ERR")) { | |
325 | return LTTNG_LOGLEVEL_ERR; | |
326 | } else if (!strcmp(str, "TRACE_WARNING") || !strcmp(str, "WARNING")) { | |
327 | return LTTNG_LOGLEVEL_WARNING; | |
328 | } else if (!strcmp(str, "TRACE_NOTICE") || !strcmp(str, "NOTICE")) { | |
329 | return LTTNG_LOGLEVEL_NOTICE; | |
330 | } else if (!strcmp(str, "TRACE_INFO") || !strcmp(str, "INFO")) { | |
331 | return LTTNG_LOGLEVEL_INFO; | |
332 | } else if (!strcmp(str, "TRACE_DEBUG_SYSTEM") || !strcmp(str, "DEBUG_SYSTEM") || !strcmp(str, "SYSTEM")) { | |
333 | return LTTNG_LOGLEVEL_DEBUG_SYSTEM; | |
334 | } else if (!strcmp(str, "TRACE_DEBUG_PROGRAM") || !strcmp(str, "DEBUG_PROGRAM") || !strcmp(str, "PROGRAM")) { | |
335 | return LTTNG_LOGLEVEL_DEBUG_PROGRAM; | |
336 | } else if (!strcmp(str, "TRACE_DEBUG_PROCESS") || !strcmp(str, "DEBUG_PROCESS") || !strcmp(str, "PROCESS")) { | |
337 | return LTTNG_LOGLEVEL_DEBUG_PROCESS; | |
338 | } else if (!strcmp(str, "TRACE_DEBUG_MODULE") || !strcmp(str, "DEBUG_MODULE") || !strcmp(str, "MODULE")) { | |
339 | return LTTNG_LOGLEVEL_DEBUG_MODULE; | |
340 | } else if (!strcmp(str, "TRACE_DEBUG_UNIT") || !strcmp(str, "DEBUG_UNIT") || !strcmp(str, "UNIT")) { | |
341 | return LTTNG_LOGLEVEL_DEBUG_UNIT; | |
342 | } else if (!strcmp(str, "TRACE_DEBUG_FUNCTION") || !strcmp(str, "DEBUG_FUNCTION") || !strcmp(str, "FUNCTION")) { | |
343 | return LTTNG_LOGLEVEL_DEBUG_FUNCTION; | |
344 | } else if (!strcmp(str, "TRACE_DEBUG_LINE") || !strcmp(str, "DEBUG_LINE") || !strcmp(str, "LINE")) { | |
345 | return LTTNG_LOGLEVEL_DEBUG_LINE; | |
346 | } else if (!strcmp(str, "TRACE_DEBUG") || !strcmp(str, "DEBUG")) { | |
347 | return LTTNG_LOGLEVEL_DEBUG; | |
8005f29a MD |
348 | } else { |
349 | return -1; | |
350 | } | |
351 | } | |
352 | ||
85076754 MD |
353 | static |
354 | const char *print_channel_name(const char *name) | |
355 | { | |
356 | return name ? : DEFAULT_CHANNEL_NAME; | |
357 | } | |
358 | ||
359 | static | |
360 | const char *print_raw_channel_name(const char *name) | |
361 | { | |
362 | return name ? : "<default>"; | |
363 | } | |
364 | ||
89476427 JRJ |
365 | /* |
366 | * Mi print exlcusion list | |
367 | */ | |
368 | static | |
369 | int mi_print_exclusion(int count, char **names) | |
370 | { | |
371 | int i, ret; | |
372 | ||
373 | assert(writer); | |
374 | ||
375 | if (count == 0) { | |
376 | ret = 0; | |
377 | goto end; | |
378 | } | |
379 | ret = mi_lttng_writer_open_element(writer, config_element_exclusions); | |
380 | if (ret) { | |
381 | goto end; | |
382 | } | |
383 | ||
384 | for (i = 0; i < count; i++) { | |
385 | ret = mi_lttng_writer_write_element_string(writer, | |
386 | config_element_exclusion, names[i]); | |
387 | if (ret) { | |
388 | goto end; | |
389 | } | |
390 | } | |
391 | ||
392 | /* Close exclusions element */ | |
393 | ret = mi_lttng_writer_close_element(writer); | |
394 | ||
395 | end: | |
396 | return ret; | |
397 | } | |
398 | ||
9c48cab3 JI |
399 | /* |
400 | * Return allocated string for pretty-printing exclusion names. | |
401 | */ | |
402 | static | |
403 | char *print_exclusions(int count, char **names) | |
404 | { | |
405 | int length = 0; | |
406 | int i; | |
407 | const char *preamble = " excluding "; | |
408 | char *ret; | |
409 | ||
410 | if (count == 0) { | |
411 | return strdup(""); | |
412 | } | |
413 | ||
414 | /* calculate total required length */ | |
415 | for (i = 0; i < count; i++) { | |
416 | length += strlen(names[i]) + 1; | |
417 | } | |
418 | ||
419 | /* add length of preamble + one for NUL - one for last (missing) comma */ | |
420 | length += strlen(preamble); | |
fd591b18 MD |
421 | ret = zmalloc(length); |
422 | if (!ret) { | |
423 | return NULL; | |
424 | } | |
9c48cab3 JI |
425 | strncpy(ret, preamble, length); |
426 | for (i = 0; i < count; i++) { | |
427 | strcat(ret, names[i]); | |
428 | if (i != count - 1) { | |
429 | strcat(ret, ","); | |
430 | } | |
431 | } | |
89476427 | 432 | |
9c48cab3 JI |
433 | return ret; |
434 | } | |
435 | ||
748bde76 JI |
436 | /* |
437 | * Compare list of exclusions against an event name. | |
438 | * Return a list of legal exclusion names. | |
439 | * Produce an error or a warning about others (depending on the situation) | |
440 | */ | |
441 | static | |
442 | int check_exclusion_subsets(const char *event_name, | |
443 | const char *exclusions, | |
444 | int *exclusion_count_ptr, | |
445 | char ***exclusion_list_ptr) | |
446 | { | |
447 | const char *excluder_ptr; | |
448 | const char *event_ptr; | |
449 | const char *next_excluder; | |
450 | int excluder_length; | |
451 | int exclusion_count = 0; | |
452 | char **exclusion_list = NULL; | |
453 | int ret = CMD_SUCCESS; | |
454 | ||
455 | if (event_name[strlen(event_name) - 1] != '*') { | |
456 | ERR("Event %s: Excluders can only be used with wildcarded events", event_name); | |
457 | goto error; | |
458 | } | |
459 | ||
460 | next_excluder = exclusions; | |
461 | while (*next_excluder != 0) { | |
462 | event_ptr = event_name; | |
463 | excluder_ptr = next_excluder; | |
464 | excluder_length = strcspn(next_excluder, ","); | |
465 | ||
466 | /* Scan both the excluder and the event letter by letter */ | |
467 | while (1) { | |
468 | char e, x; | |
469 | ||
470 | e = *event_ptr; | |
471 | x = *excluder_ptr; | |
472 | ||
473 | if (x == '*') { | |
474 | /* Event is a subset of the excluder */ | |
475 | ERR("Event %s: %.*s excludes all events from %s", | |
476 | event_name, | |
477 | excluder_length, | |
478 | next_excluder, | |
479 | event_name); | |
480 | goto error; | |
481 | } | |
482 | if (e == '*') { | |
5ef79758 MD |
483 | char *string; |
484 | char **new_exclusion_list; | |
485 | ||
748bde76 | 486 | /* Excluder is a proper subset of event */ |
f5436bfc | 487 | string = lttng_strndup(next_excluder, excluder_length); |
5ef79758 | 488 | if (!string) { |
f5436bfc | 489 | PERROR("lttng_strndup error"); |
5ef79758 MD |
490 | goto error; |
491 | } | |
492 | new_exclusion_list = realloc(exclusion_list, | |
1940b29e | 493 | sizeof(char *) * (exclusion_count + 1)); |
5ef79758 MD |
494 | if (!new_exclusion_list) { |
495 | PERROR("realloc"); | |
496 | free(string); | |
497 | goto error; | |
498 | } | |
499 | exclusion_list = new_exclusion_list; | |
748bde76 | 500 | exclusion_count++; |
5ef79758 | 501 | exclusion_list[exclusion_count - 1] = string; |
748bde76 JI |
502 | break; |
503 | } | |
504 | if (x != e) { | |
505 | /* Excluder and event sets have no common elements */ | |
506 | WARN("Event %s: %.*s does not exclude any events from %s", | |
507 | event_name, | |
508 | excluder_length, | |
509 | next_excluder, | |
510 | event_name); | |
511 | break; | |
512 | } | |
513 | excluder_ptr++; | |
514 | event_ptr++; | |
515 | } | |
516 | /* next excluder */ | |
517 | next_excluder += excluder_length; | |
518 | if (*next_excluder == ',') { | |
519 | next_excluder++; | |
520 | } | |
521 | } | |
522 | goto end; | |
523 | error: | |
524 | while (exclusion_count--) { | |
525 | free(exclusion_list[exclusion_count]); | |
526 | } | |
527 | if (exclusion_list != NULL) { | |
528 | free(exclusion_list); | |
529 | } | |
530 | exclusion_list = NULL; | |
531 | exclusion_count = 0; | |
532 | ret = CMD_ERROR; | |
533 | end: | |
534 | *exclusion_count_ptr = exclusion_count; | |
535 | *exclusion_list_ptr = exclusion_list; | |
536 | return ret; | |
537 | } | |
502bbe89 PP |
538 | |
539 | static void warn_on_truncated_exclusion_names(char **exclusion_list, | |
540 | int exclusion_count, int *warn) | |
541 | { | |
542 | size_t i = 0; | |
543 | ||
544 | for (i = 0; i < exclusion_count; ++i) { | |
545 | const char *name = exclusion_list[i]; | |
546 | size_t len = strlen(name); | |
547 | ||
548 | if (len >= LTTNG_SYMBOL_NAME_LEN) { | |
549 | WARN("Event exclusion \"%s\" will be truncated", | |
550 | name); | |
551 | *warn = 1; | |
552 | } | |
553 | } | |
554 | } | |
555 | ||
f3ed775e | 556 | /* |
6181537c | 557 | * Enabling event using the lttng API. |
89476427 | 558 | * Note: in case of error only the last error code will be return. |
f3ed775e | 559 | */ |
cd80958d | 560 | static int enable_events(char *session_name) |
f3ed775e | 561 | { |
89476427 JRJ |
562 | int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS; |
563 | int error_holder = CMD_SUCCESS, warn = 0, error = 0, success = 1; | |
b73d0b29 | 564 | char *event_name, *channel_name = NULL; |
f3ed775e | 565 | struct lttng_event ev; |
7d29a247 | 566 | struct lttng_domain dom; |
7ed70bc9 JI |
567 | int exclusion_count = 0; |
568 | char **exclusion_list = NULL; | |
f3ed775e | 569 | |
441c16a7 MD |
570 | memset(&ev, 0, sizeof(ev)); |
571 | memset(&dom, 0, sizeof(dom)); | |
572 | ||
53a80697 | 573 | if (opt_kernel) { |
67b58630 JG |
574 | if (opt_loglevel) { |
575 | WARN("Kernel loglevels are not supported."); | |
576 | } | |
53a80697 MD |
577 | } |
578 | ||
7d29a247 DG |
579 | /* Create lttng domain */ |
580 | if (opt_kernel) { | |
581 | dom.type = LTTNG_DOMAIN_KERNEL; | |
7972aab2 | 582 | dom.buf_type = LTTNG_BUFFER_GLOBAL; |
d78d6610 | 583 | } else if (opt_userspace) { |
2bdd86d4 | 584 | dom.type = LTTNG_DOMAIN_UST; |
7972aab2 | 585 | /* Default. */ |
8692d4e5 | 586 | dom.buf_type = LTTNG_BUFFER_PER_UID; |
b9dfb167 DG |
587 | } else if (opt_jul) { |
588 | dom.type = LTTNG_DOMAIN_JUL; | |
589 | /* Default. */ | |
590 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
5cdb6027 DG |
591 | } else if (opt_log4j) { |
592 | dom.type = LTTNG_DOMAIN_LOG4J; | |
593 | /* Default. */ | |
594 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
0e115563 DG |
595 | } else if (opt_python) { |
596 | dom.type = LTTNG_DOMAIN_PYTHON; | |
597 | /* Default. */ | |
598 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
6181537c | 599 | } else { |
3ecec76a PP |
600 | /* Checked by the caller. */ |
601 | assert(0); | |
2bdd86d4 | 602 | } |
7d29a247 | 603 | |
8b08c525 AB |
604 | if (opt_exclude) { |
605 | switch (dom.type) { | |
606 | case LTTNG_DOMAIN_KERNEL: | |
607 | case LTTNG_DOMAIN_JUL: | |
608 | case LTTNG_DOMAIN_LOG4J: | |
609 | case LTTNG_DOMAIN_PYTHON: | |
610 | ERR("Event name exclusions are not yet implemented for %s events", | |
611 | get_domain_str(dom.type)); | |
612 | ret = CMD_ERROR; | |
613 | goto error; | |
614 | case LTTNG_DOMAIN_UST: | |
615 | /* Exclusions supported */ | |
616 | break; | |
617 | default: | |
618 | assert(0); | |
619 | } | |
d5dd17fd JI |
620 | } |
621 | ||
85076754 | 622 | channel_name = opt_channel_name; |
ae856491 | 623 | |
cd80958d DG |
624 | handle = lttng_create_handle(session_name, &dom); |
625 | if (handle == NULL) { | |
626 | ret = -1; | |
627 | goto error; | |
628 | } | |
1aef21b6 | 629 | |
89476427 JRJ |
630 | /* Prepare Mi */ |
631 | if (lttng_opt_mi) { | |
632 | /* Open a events element */ | |
633 | ret = mi_lttng_writer_open_element(writer, config_element_events); | |
634 | if (ret) { | |
635 | ret = CMD_ERROR; | |
636 | goto error; | |
637 | } | |
638 | } | |
639 | ||
cd80958d | 640 | if (opt_enable_all) { |
8c9ae521 | 641 | /* Default setup for enable all */ |
75e8c5ab MD |
642 | if (opt_kernel) { |
643 | ev.type = opt_event_type; | |
29c62722 | 644 | strcpy(ev.name, "*"); |
300b8fd5 MD |
645 | /* kernel loglevels not implemented */ |
646 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; | |
75e8c5ab MD |
647 | } else { |
648 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
649 | strcpy(ev.name, "*"); | |
300b8fd5 MD |
650 | ev.loglevel_type = opt_loglevel_type; |
651 | if (opt_loglevel) { | |
0e115563 | 652 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 DG |
653 | if (opt_userspace) { |
654 | ev.loglevel = loglevel_str_to_value(opt_loglevel); | |
655 | } else if (opt_jul) { | |
656 | ev.loglevel = loglevel_jul_str_to_value(opt_loglevel); | |
5cdb6027 DG |
657 | } else if (opt_log4j) { |
658 | ev.loglevel = loglevel_log4j_str_to_value(opt_loglevel); | |
0e115563 DG |
659 | } else if (opt_python) { |
660 | ev.loglevel = loglevel_python_str_to_value(opt_loglevel); | |
b2064f54 | 661 | } |
300b8fd5 MD |
662 | if (ev.loglevel == -1) { |
663 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 664 | ret = -LTTNG_ERR_INVALID; |
300b8fd5 MD |
665 | goto error; |
666 | } | |
22e25b71 | 667 | } else { |
0e115563 | 668 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 DG |
669 | if (opt_userspace) { |
670 | ev.loglevel = -1; | |
34aa3685 | 671 | } else if (opt_jul) { |
b2064f54 | 672 | ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL; |
34aa3685 JG |
673 | } else if (opt_log4j) { |
674 | ev.loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; | |
0e115563 DG |
675 | } else if (opt_python) { |
676 | ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
b2064f54 | 677 | } |
300b8fd5 | 678 | } |
75e8c5ab | 679 | } |
8c9ae521 | 680 | |
7ed70bc9 JI |
681 | if (opt_exclude) { |
682 | ret = check_exclusion_subsets("*", opt_exclude, | |
683 | &exclusion_count, &exclusion_list); | |
684 | if (ret == CMD_ERROR) { | |
685 | goto error; | |
686 | } | |
89476427 | 687 | ev.exclusion = 1; |
502bbe89 PP |
688 | |
689 | warn_on_truncated_exclusion_names(exclusion_list, | |
690 | exclusion_count, &warn); | |
7ed70bc9 | 691 | } |
025faf73 | 692 | if (!opt_filter) { |
7ed70bc9 JI |
693 | ret = lttng_enable_event_with_exclusions(handle, |
694 | &ev, channel_name, | |
695 | NULL, | |
696 | exclusion_count, exclusion_list); | |
025faf73 DG |
697 | if (ret < 0) { |
698 | switch (-ret) { | |
699 | case LTTNG_ERR_KERN_EVENT_EXIST: | |
700 | WARN("Kernel events already enabled (channel %s, session %s)", | |
85076754 | 701 | print_channel_name(channel_name), session_name); |
89476427 | 702 | warn = 1; |
025faf73 | 703 | break; |
45d5d421 CB |
704 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
705 | { | |
706 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
707 | ERR("Events: %s (channel %s, session %s)", | |
708 | msg, | |
709 | print_channel_name(channel_name), | |
710 | session_name); | |
711 | error = 1; | |
712 | break; | |
713 | } | |
025faf73 DG |
714 | default: |
715 | ERR("Events: %s (channel %s, session %s)", | |
85076754 MD |
716 | lttng_strerror(ret), |
717 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
718 | ? print_raw_channel_name(channel_name) | |
719 | : print_channel_name(channel_name), | |
720 | session_name); | |
89476427 | 721 | error = 1; |
025faf73 DG |
722 | break; |
723 | } | |
724 | goto end; | |
42224349 | 725 | } |
8c9ae521 | 726 | |
025faf73 DG |
727 | switch (opt_event_type) { |
728 | case LTTNG_EVENT_TRACEPOINT: | |
67b58630 | 729 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9c48cab3 | 730 | char *exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
5ef79758 MD |
731 | |
732 | if (!exclusion_string) { | |
733 | PERROR("Cannot allocate exclusion_string"); | |
734 | error = 1; | |
735 | goto end; | |
736 | } | |
9c48cab3 | 737 | MSG("All %s tracepoints%s are enabled in channel %s for loglevel %s", |
b9dfb167 | 738 | get_domain_str(dom.type), |
9c48cab3 | 739 | exclusion_string, |
85076754 | 740 | print_channel_name(channel_name), |
025faf73 | 741 | opt_loglevel); |
9c48cab3 | 742 | free(exclusion_string); |
025faf73 | 743 | } else { |
9c48cab3 | 744 | char *exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
5ef79758 MD |
745 | |
746 | if (!exclusion_string) { | |
747 | PERROR("Cannot allocate exclusion_string"); | |
748 | error = 1; | |
749 | goto end; | |
750 | } | |
9c48cab3 | 751 | MSG("All %s tracepoints%s are enabled in channel %s", |
b9dfb167 | 752 | get_domain_str(dom.type), |
9c48cab3 | 753 | exclusion_string, |
85076754 | 754 | print_channel_name(channel_name)); |
9c48cab3 | 755 | free(exclusion_string); |
025faf73 DG |
756 | } |
757 | break; | |
758 | case LTTNG_EVENT_SYSCALL: | |
759 | if (opt_kernel) { | |
6e911cad MD |
760 | MSG("All %s system calls are enabled in channel %s", |
761 | get_domain_str(dom.type), | |
85076754 | 762 | print_channel_name(channel_name)); |
025faf73 DG |
763 | } |
764 | break; | |
765 | case LTTNG_EVENT_ALL: | |
67b58630 | 766 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9c48cab3 | 767 | char *exclusion_string = print_exclusions(exclusion_count, 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 events%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 { |
9c48cab3 | 781 | char *exclusion_string = print_exclusions(exclusion_count, 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 events%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 | default: | |
796 | /* | |
797 | * We should not be here since lttng_enable_event should have | |
798 | * failed on the event type. | |
799 | */ | |
800 | goto error; | |
57064ada | 801 | } |
f3ed775e | 802 | } |
89476427 | 803 | |
025faf73 | 804 | if (opt_filter) { |
89476427 | 805 | command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name, |
7ed70bc9 | 806 | opt_filter, exclusion_count, exclusion_list); |
89476427 JRJ |
807 | if (command_ret < 0) { |
808 | switch (-command_ret) { | |
16363652 | 809 | case LTTNG_ERR_FILTER_EXIST: |
85076754 | 810 | WARN("Filter on all events is already enabled" |
16363652 | 811 | " (channel %s, session %s)", |
85076754 | 812 | print_channel_name(channel_name), session_name); |
89476427 | 813 | warn = 1; |
16363652 | 814 | break; |
45d5d421 CB |
815 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
816 | { | |
817 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
818 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", | |
819 | msg, | |
820 | print_channel_name(channel_name), | |
821 | session_name, opt_filter); | |
822 | error = 1; | |
823 | break; | |
824 | } | |
16363652 | 825 | default: |
85076754 | 826 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", |
da3d7d0e JRJ |
827 | lttng_strerror(command_ret), |
828 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
829 | ? print_raw_channel_name(channel_name) |
830 | : print_channel_name(channel_name), | |
831 | session_name, opt_filter); | |
89476427 | 832 | error = 1; |
16363652 DG |
833 | break; |
834 | } | |
89476427 | 835 | error_holder = command_ret; |
16363652 | 836 | } else { |
89476427 | 837 | ev.filter = 1; |
16363652 DG |
838 | MSG("Filter '%s' successfully set", opt_filter); |
839 | } | |
840 | } | |
89476427 JRJ |
841 | |
842 | if (lttng_opt_mi) { | |
843 | /* The wildcard * is used for kernel and ust domain to | |
844 | * represent ALL. We copy * in event name to force the wildcard use | |
845 | * for kernel domain | |
846 | * | |
847 | * Note: this is strictly for semantic and printing while in | |
848 | * machine interface mode. | |
849 | */ | |
850 | strcpy(ev.name, "*"); | |
851 | ||
852 | /* If we reach here the events are enabled */ | |
853 | if (!error && !warn) { | |
854 | ev.enabled = 1; | |
855 | } else { | |
856 | ev.enabled = 0; | |
857 | success = 0; | |
858 | } | |
970d848b | 859 | ret = mi_lttng_event(writer, &ev, 1, handle->domain.type); |
89476427 JRJ |
860 | if (ret) { |
861 | ret = CMD_ERROR; | |
862 | goto error; | |
863 | } | |
864 | ||
865 | /* print exclusion */ | |
866 | ret = mi_print_exclusion(exclusion_count, exclusion_list); | |
867 | if (ret) { | |
868 | ret = CMD_ERROR; | |
869 | goto error; | |
870 | } | |
871 | ||
872 | /* Success ? */ | |
873 | ret = mi_lttng_writer_write_element_bool(writer, | |
874 | mi_lttng_element_command_success, success); | |
875 | if (ret) { | |
876 | ret = CMD_ERROR; | |
877 | goto error; | |
878 | } | |
879 | ||
880 | /* Close event element */ | |
881 | ret = mi_lttng_writer_close_element(writer); | |
882 | if (ret) { | |
883 | ret = CMD_ERROR; | |
884 | goto error; | |
885 | } | |
886 | } | |
887 | ||
8c9ae521 | 888 | goto end; |
f3ed775e DG |
889 | } |
890 | ||
891 | /* Strip event list */ | |
892 | event_name = strtok(opt_event_list, ","); | |
893 | while (event_name != NULL) { | |
6181537c DG |
894 | /* Copy name and type of the event */ |
895 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
896 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
897 | ev.type = opt_event_type; | |
898 | ||
f3ed775e DG |
899 | /* Kernel tracer action */ |
900 | if (opt_kernel) { | |
901 | DBG("Enabling kernel event %s for channel %s", | |
85076754 MD |
902 | event_name, |
903 | print_channel_name(channel_name)); | |
f3ed775e DG |
904 | |
905 | switch (opt_event_type) { | |
29c62722 MD |
906 | case LTTNG_EVENT_ALL: /* Enable tracepoints and syscalls */ |
907 | /* If event name differs from *, select tracepoint. */ | |
908 | if (strcmp(ev.name, "*")) { | |
909 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
910 | } | |
911 | break; | |
e6ddca71 | 912 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 913 | break; |
7d29a247 | 914 | case LTTNG_EVENT_PROBE: |
cf0e5467 | 915 | ret = parse_probe_opts(&ev, opt_probe); |
49d4e302 | 916 | if (ret) { |
cf0e5467 | 917 | ERR("Unable to parse probe options"); |
0d63dd19 DG |
918 | ret = 0; |
919 | goto error; | |
920 | } | |
f3ed775e DG |
921 | break; |
922 | case LTTNG_EVENT_FUNCTION: | |
8f0d098b | 923 | ret = parse_probe_opts(&ev, opt_function); |
49d4e302 | 924 | if (ret) { |
8f0d098b MD |
925 | ERR("Unable to parse function probe options"); |
926 | ret = 0; | |
927 | goto error; | |
928 | } | |
929 | break; | |
a54bd42d | 930 | case LTTNG_EVENT_SYSCALL: |
c6aa2d41 MD |
931 | ev.type = LTTNG_EVENT_SYSCALL; |
932 | break; | |
f3ed775e | 933 | default: |
1ab1ea0b | 934 | ret = CMD_UNDEFINED; |
f3ed775e DG |
935 | goto error; |
936 | } | |
0cda4f28 | 937 | |
0cda4f28 | 938 | /* kernel loglevels not implemented */ |
8005f29a | 939 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
f3ed775e | 940 | } else if (opt_userspace) { /* User-space tracer action */ |
300b8fd5 | 941 | DBG("Enabling UST event %s for channel %s, loglevel %s", event_name, |
85076754 | 942 | print_channel_name(channel_name), opt_loglevel ? : "<all>"); |
2bdd86d4 MD |
943 | |
944 | switch (opt_event_type) { | |
945 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
946 | /* Fall-through */ |
947 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e MD |
948 | /* Copy name and type of the event */ |
949 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
950 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
951 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 MD |
952 | break; |
953 | case LTTNG_EVENT_PROBE: | |
954 | case LTTNG_EVENT_FUNCTION: | |
2bdd86d4 MD |
955 | case LTTNG_EVENT_SYSCALL: |
956 | default: | |
cc62c0c0 | 957 | ERR("Event type not available for user-space tracing"); |
4ce78777 | 958 | ret = CMD_UNSUPPORTED; |
2bdd86d4 MD |
959 | goto error; |
960 | } | |
0cda4f28 | 961 | |
7ed70bc9 | 962 | if (opt_exclude) { |
89476427 | 963 | ev.exclusion = 1; |
d5dd17fd JI |
964 | if (opt_event_type != LTTNG_EVENT_ALL && opt_event_type != LTTNG_EVENT_TRACEPOINT) { |
965 | ERR("Exclusion option can only be used with tracepoint events"); | |
966 | ret = CMD_ERROR; | |
967 | goto error; | |
968 | } | |
7ed70bc9 JI |
969 | /* Free previously allocated items */ |
970 | if (exclusion_list != NULL) { | |
971 | while (exclusion_count--) { | |
972 | free(exclusion_list[exclusion_count]); | |
973 | } | |
974 | free(exclusion_list); | |
975 | exclusion_list = NULL; | |
976 | } | |
977 | /* Check for proper subsets */ | |
978 | ret = check_exclusion_subsets(event_name, opt_exclude, | |
979 | &exclusion_count, &exclusion_list); | |
980 | if (ret == CMD_ERROR) { | |
981 | goto error; | |
982 | } | |
502bbe89 PP |
983 | |
984 | warn_on_truncated_exclusion_names( | |
985 | exclusion_list, exclusion_count, &warn); | |
7ed70bc9 JI |
986 | } |
987 | ||
0cda4f28 | 988 | ev.loglevel_type = opt_loglevel_type; |
ed7f4083 | 989 | if (opt_loglevel) { |
8005f29a MD |
990 | ev.loglevel = loglevel_str_to_value(opt_loglevel); |
991 | if (ev.loglevel == -1) { | |
992 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 993 | ret = -LTTNG_ERR_INVALID; |
8005f29a MD |
994 | goto error; |
995 | } | |
22e25b71 MD |
996 | } else { |
997 | ev.loglevel = -1; | |
ed7f4083 | 998 | } |
0e115563 | 999 | } else if (opt_jul || opt_log4j || opt_python) { |
b9dfb167 DG |
1000 | if (opt_event_type != LTTNG_EVENT_ALL && |
1001 | opt_event_type != LTTNG_EVENT_TRACEPOINT) { | |
5cdb6027 | 1002 | ERR("Event type not supported for domain."); |
b9dfb167 DG |
1003 | ret = CMD_UNSUPPORTED; |
1004 | goto error; | |
1005 | } | |
b2064f54 DG |
1006 | |
1007 | ev.loglevel_type = opt_loglevel_type; | |
1008 | if (opt_loglevel) { | |
5cdb6027 DG |
1009 | if (opt_jul) { |
1010 | ev.loglevel = loglevel_jul_str_to_value(opt_loglevel); | |
1011 | } else if (opt_log4j) { | |
1012 | ev.loglevel = loglevel_log4j_str_to_value(opt_loglevel); | |
0e115563 DG |
1013 | } else if (opt_python) { |
1014 | ev.loglevel = loglevel_python_str_to_value(opt_loglevel); | |
5cdb6027 | 1015 | } |
b2064f54 DG |
1016 | if (ev.loglevel == -1) { |
1017 | ERR("Unknown loglevel %s", opt_loglevel); | |
1018 | ret = -LTTNG_ERR_INVALID; | |
1019 | goto error; | |
1020 | } | |
1021 | } else { | |
5cdb6027 DG |
1022 | if (opt_jul) { |
1023 | ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL; | |
1024 | } else if (opt_log4j) { | |
1025 | ev.loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; | |
0e115563 DG |
1026 | } else if (opt_python) { |
1027 | ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
5cdb6027 | 1028 | } |
b2064f54 | 1029 | } |
b9dfb167 DG |
1030 | ev.type = LTTNG_EVENT_TRACEPOINT; |
1031 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
1032 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
f3ed775e | 1033 | } else { |
3ecec76a | 1034 | assert(0); |
f3ed775e DG |
1035 | } |
1036 | ||
025faf73 | 1037 | if (!opt_filter) { |
9c48cab3 JI |
1038 | char *exclusion_string; |
1039 | ||
89476427 | 1040 | command_ret = lttng_enable_event_with_exclusions(handle, |
7ed70bc9 JI |
1041 | &ev, channel_name, |
1042 | NULL, exclusion_count, exclusion_list); | |
9c48cab3 | 1043 | exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
5ef79758 MD |
1044 | if (!exclusion_string) { |
1045 | PERROR("Cannot allocate exclusion_string"); | |
1046 | error = 1; | |
1047 | goto end; | |
1048 | } | |
89476427 | 1049 | if (command_ret < 0) { |
025faf73 | 1050 | /* Turn ret to positive value to handle the positive error code */ |
89476427 | 1051 | switch (-command_ret) { |
025faf73 | 1052 | case LTTNG_ERR_KERN_EVENT_EXIST: |
9c48cab3 | 1053 | WARN("Kernel event %s%s already enabled (channel %s, session %s)", |
85076754 | 1054 | event_name, |
9c48cab3 | 1055 | exclusion_string, |
85076754 | 1056 | print_channel_name(channel_name), session_name); |
89476427 | 1057 | warn = 1; |
025faf73 | 1058 | break; |
45d5d421 CB |
1059 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1060 | { | |
1061 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1062 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, | |
1063 | exclusion_string, | |
1064 | msg, | |
1065 | print_channel_name(channel_name), | |
1066 | session_name); | |
1067 | error = 1; | |
1068 | break; | |
1069 | } | |
025faf73 | 1070 | default: |
9c48cab3 JI |
1071 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, |
1072 | exclusion_string, | |
da3d7d0e JRJ |
1073 | lttng_strerror(command_ret), |
1074 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1075 | ? print_raw_channel_name(channel_name) |
1076 | : print_channel_name(channel_name), | |
1077 | session_name); | |
89476427 | 1078 | error = 1; |
025faf73 DG |
1079 | break; |
1080 | } | |
89476427 | 1081 | error_holder = command_ret; |
025faf73 | 1082 | } else { |
8274eeba AB |
1083 | switch (dom.type) { |
1084 | case LTTNG_DOMAIN_KERNEL: | |
1085 | case LTTNG_DOMAIN_UST: | |
49ceaa70 | 1086 | MSG("%s event %s%s created in channel %s", |
8274eeba AB |
1087 | get_domain_str(dom.type), |
1088 | event_name, | |
1089 | exclusion_string, | |
1090 | print_channel_name(channel_name)); | |
1091 | break; | |
1092 | case LTTNG_DOMAIN_JUL: | |
1093 | case LTTNG_DOMAIN_LOG4J: | |
1094 | case LTTNG_DOMAIN_PYTHON: | |
1095 | /* | |
1096 | * Don't print the default channel | |
1097 | * name for agent domains. | |
1098 | */ | |
895707da | 1099 | MSG("%s event %s%s enabled", |
8274eeba AB |
1100 | get_domain_str(dom.type), |
1101 | event_name, | |
1102 | exclusion_string); | |
1103 | break; | |
1104 | default: | |
1105 | assert(0); | |
49ceaa70 | 1106 | } |
42224349 | 1107 | } |
9c48cab3 | 1108 | free(exclusion_string); |
6181537c | 1109 | } |
025faf73 DG |
1110 | |
1111 | if (opt_filter) { | |
9c48cab3 JI |
1112 | char *exclusion_string; |
1113 | ||
89476427 JRJ |
1114 | /* Filter present */ |
1115 | ev.filter = 1; | |
1116 | ||
1117 | command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name, | |
7ed70bc9 | 1118 | opt_filter, exclusion_count, exclusion_list); |
9c48cab3 | 1119 | exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
5ef79758 MD |
1120 | if (!exclusion_string) { |
1121 | PERROR("Cannot allocate exclusion_string"); | |
1122 | error = 1; | |
1123 | goto end; | |
1124 | } | |
89476427 JRJ |
1125 | if (command_ret < 0) { |
1126 | switch (-command_ret) { | |
7671f53c | 1127 | case LTTNG_ERR_FILTER_EXIST: |
9c48cab3 | 1128 | WARN("Filter on event %s%s is already enabled" |
7671f53c | 1129 | " (channel %s, session %s)", |
85076754 | 1130 | event_name, |
9c48cab3 | 1131 | exclusion_string, |
85076754 | 1132 | print_channel_name(channel_name), session_name); |
89476427 | 1133 | warn = 1; |
7671f53c | 1134 | break; |
45d5d421 CB |
1135 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1136 | { | |
1137 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1138 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name, | |
1139 | exclusion_string, | |
1140 | msg, | |
1141 | print_channel_name(channel_name), | |
1142 | session_name, opt_filter); | |
1143 | error = 1; | |
1144 | break; | |
1145 | } | |
7671f53c | 1146 | default: |
9c48cab3 JI |
1147 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name, |
1148 | exclusion_string, | |
da3d7d0e JRJ |
1149 | lttng_strerror(command_ret), |
1150 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1151 | ? print_raw_channel_name(channel_name) |
1152 | : print_channel_name(channel_name), | |
1153 | session_name, opt_filter); | |
89476427 | 1154 | error = 1; |
7671f53c CB |
1155 | break; |
1156 | } | |
89476427 JRJ |
1157 | error_holder = command_ret; |
1158 | ||
16363652 | 1159 | } else { |
9c48cab3 JI |
1160 | MSG("Event %s%s: Filter '%s' successfully set", |
1161 | event_name, exclusion_string, | |
1162 | opt_filter); | |
53a80697 | 1163 | } |
9c48cab3 | 1164 | free(exclusion_string); |
53a80697 | 1165 | } |
6181537c | 1166 | |
89476427 JRJ |
1167 | if (lttng_opt_mi) { |
1168 | if (command_ret) { | |
1169 | success = 0; | |
1170 | ev.enabled = 0; | |
1171 | } else { | |
1172 | ev.enabled = 1; | |
1173 | } | |
1174 | ||
970d848b | 1175 | ret = mi_lttng_event(writer, &ev, 1, handle->domain.type); |
89476427 JRJ |
1176 | if (ret) { |
1177 | ret = CMD_ERROR; | |
1178 | goto error; | |
1179 | } | |
1180 | ||
1181 | /* print exclusion */ | |
1182 | ret = mi_print_exclusion(exclusion_count, exclusion_list); | |
1183 | if (ret) { | |
1184 | ret = CMD_ERROR; | |
1185 | goto error; | |
1186 | } | |
1187 | ||
1188 | /* Success ? */ | |
1189 | ret = mi_lttng_writer_write_element_bool(writer, | |
1190 | mi_lttng_element_command_success, success); | |
1191 | if (ret) { | |
1192 | ret = CMD_ERROR; | |
1193 | goto end; | |
1194 | } | |
1195 | ||
1196 | /* Close event element */ | |
1197 | ret = mi_lttng_writer_close_element(writer); | |
1198 | if (ret) { | |
1199 | ret = CMD_ERROR; | |
1200 | goto end; | |
1201 | } | |
1202 | } | |
1203 | ||
f3ed775e DG |
1204 | /* Next event */ |
1205 | event_name = strtok(NULL, ","); | |
89476427 JRJ |
1206 | /* Reset warn, error and success */ |
1207 | success = 1; | |
f3ed775e DG |
1208 | } |
1209 | ||
8c9ae521 | 1210 | end: |
89476427 JRJ |
1211 | /* Close Mi */ |
1212 | if (lttng_opt_mi) { | |
1213 | /* Close events element */ | |
1214 | ret = mi_lttng_writer_close_element(writer); | |
1215 | if (ret) { | |
1216 | ret = CMD_ERROR; | |
1217 | goto error; | |
1218 | } | |
1219 | } | |
f3ed775e | 1220 | error: |
ae856491 DG |
1221 | if (warn) { |
1222 | ret = CMD_WARNING; | |
1223 | } | |
89476427 JRJ |
1224 | if (error) { |
1225 | ret = CMD_ERROR; | |
1226 | } | |
cd80958d DG |
1227 | lttng_destroy_handle(handle); |
1228 | ||
7ed70bc9 JI |
1229 | if (exclusion_list != NULL) { |
1230 | while (exclusion_count--) { | |
1231 | free(exclusion_list[exclusion_count]); | |
1232 | } | |
1233 | free(exclusion_list); | |
1234 | } | |
1235 | ||
89476427 JRJ |
1236 | /* Overwrite ret with error_holder if there was an actual error with |
1237 | * enabling an event. | |
1238 | */ | |
1239 | ret = error_holder ? error_holder : ret; | |
1240 | ||
f3ed775e DG |
1241 | return ret; |
1242 | } | |
1243 | ||
1244 | /* | |
6181537c | 1245 | * Add event to trace session |
f3ed775e DG |
1246 | */ |
1247 | int cmd_enable_events(int argc, const char **argv) | |
1248 | { | |
89476427 | 1249 | int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1; |
f3ed775e | 1250 | static poptContext pc; |
cd80958d | 1251 | char *session_name = NULL; |
de044b7a | 1252 | int event_type = -1; |
f3ed775e DG |
1253 | |
1254 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1255 | poptReadDefaultConfig(pc, 0); | |
1256 | ||
1257 | /* Default event type */ | |
7a3d1328 | 1258 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
1259 | |
1260 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1261 | switch (opt) { | |
1262 | case OPT_HELP: | |
4ba92f18 | 1263 | SHOW_HELP(); |
f3ed775e | 1264 | goto end; |
f3ed775e | 1265 | case OPT_TRACEPOINT: |
e6ddca71 | 1266 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 1267 | break; |
cf0e5467 | 1268 | case OPT_PROBE: |
7d29a247 | 1269 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e DG |
1270 | break; |
1271 | case OPT_FUNCTION: | |
1272 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b | 1273 | break; |
a54bd42d MD |
1274 | case OPT_SYSCALL: |
1275 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 1276 | break; |
eeac7d46 MD |
1277 | case OPT_USERSPACE: |
1278 | opt_userspace = 1; | |
eeac7d46 | 1279 | break; |
0cda4f28 | 1280 | case OPT_LOGLEVEL: |
8005f29a | 1281 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE; |
0cda4f28 MD |
1282 | opt_loglevel = poptGetOptArg(pc); |
1283 | break; | |
1284 | case OPT_LOGLEVEL_ONLY: | |
8005f29a | 1285 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE; |
0cda4f28 | 1286 | opt_loglevel = poptGetOptArg(pc); |
13dce3b7 | 1287 | break; |
679b4943 SM |
1288 | case OPT_LIST_OPTIONS: |
1289 | list_cmd_options(stdout, long_options); | |
679b4943 | 1290 | goto end; |
53a80697 MD |
1291 | case OPT_FILTER: |
1292 | break; | |
fac3366c JI |
1293 | case OPT_EXCLUDE: |
1294 | break; | |
f3ed775e | 1295 | default: |
f3ed775e DG |
1296 | ret = CMD_UNDEFINED; |
1297 | goto end; | |
1298 | } | |
de044b7a DG |
1299 | |
1300 | /* Validate event type. Multiple event type are not supported. */ | |
1301 | if (event_type == -1) { | |
1302 | event_type = opt_event_type; | |
1303 | } else { | |
1304 | if (event_type != opt_event_type) { | |
1305 | ERR("Multiple event type not supported."); | |
1306 | ret = CMD_ERROR; | |
1307 | goto end; | |
1308 | } | |
1309 | } | |
f3ed775e DG |
1310 | } |
1311 | ||
3ecec76a PP |
1312 | ret = print_missing_or_multiple_domains( |
1313 | opt_kernel + opt_userspace + opt_jul + opt_log4j + opt_python); | |
1314 | if (ret) { | |
1315 | ret = CMD_ERROR; | |
1316 | goto end; | |
1317 | } | |
1318 | ||
89476427 JRJ |
1319 | /* Mi check */ |
1320 | if (lttng_opt_mi) { | |
1321 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1322 | if (!writer) { | |
1323 | ret = -LTTNG_ERR_NOMEM; | |
1324 | goto end; | |
1325 | } | |
1326 | ||
1327 | /* Open command element */ | |
1328 | ret = mi_lttng_writer_command_open(writer, | |
1329 | mi_lttng_element_command_enable_event); | |
1330 | if (ret) { | |
1331 | ret = CMD_ERROR; | |
1332 | goto end; | |
1333 | } | |
1334 | ||
1335 | /* Open output element */ | |
1336 | ret = mi_lttng_writer_open_element(writer, | |
1337 | mi_lttng_element_command_output); | |
1338 | if (ret) { | |
1339 | ret = CMD_ERROR; | |
1340 | goto end; | |
1341 | } | |
1342 | } | |
1343 | ||
f3ed775e DG |
1344 | opt_event_list = (char*) poptGetArg(pc); |
1345 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
1346 | ERR("Missing event name(s).\n"); | |
ca1c3607 | 1347 | ret = CMD_ERROR; |
f3ed775e DG |
1348 | goto end; |
1349 | } | |
1350 | ||
cd80958d DG |
1351 | if (!opt_session_name) { |
1352 | session_name = get_session_name(); | |
1353 | if (session_name == NULL) { | |
89476427 JRJ |
1354 | command_ret = CMD_ERROR; |
1355 | success = 0; | |
1356 | goto mi_closing; | |
cd80958d DG |
1357 | } |
1358 | } else { | |
1359 | session_name = opt_session_name; | |
1360 | } | |
1361 | ||
89476427 JRJ |
1362 | command_ret = enable_events(session_name); |
1363 | if (command_ret) { | |
1364 | success = 0; | |
1365 | goto mi_closing; | |
1366 | } | |
1367 | ||
1368 | mi_closing: | |
1369 | /* Mi closing */ | |
1370 | if (lttng_opt_mi) { | |
1371 | /* Close output element */ | |
1372 | ret = mi_lttng_writer_close_element(writer); | |
1373 | if (ret) { | |
1374 | ret = CMD_ERROR; | |
1375 | goto end; | |
1376 | } | |
1377 | ||
1378 | ret = mi_lttng_writer_write_element_bool(writer, | |
1379 | mi_lttng_element_command_success, success); | |
1380 | if (ret) { | |
1381 | ret = CMD_ERROR; | |
1382 | goto end; | |
1383 | } | |
1384 | ||
1385 | /* Command element close */ | |
1386 | ret = mi_lttng_writer_command_close(writer); | |
1387 | if (ret) { | |
1388 | ret = CMD_ERROR; | |
1389 | goto end; | |
1390 | } | |
1391 | } | |
f3ed775e DG |
1392 | |
1393 | end: | |
89476427 JRJ |
1394 | /* Mi clean-up */ |
1395 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1396 | /* Preserve original error code */ | |
1397 | ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL; | |
1398 | } | |
1399 | ||
cd80958d DG |
1400 | if (opt_session_name == NULL) { |
1401 | free(session_name); | |
1402 | } | |
1403 | ||
89476427 JRJ |
1404 | /* Overwrite ret if an error occurred in enable_events */ |
1405 | ret = command_ret ? command_ret : ret; | |
1406 | ||
ca1c3607 | 1407 | poptFreeContext(pc); |
f3ed775e DG |
1408 | return ret; |
1409 | } |