Commit | Line | Data |
---|---|---|
f3ed775e DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
d14d33bf AM |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License, version 2 only, | |
6 | * as published by the Free Software Foundation. | |
f3ed775e DG |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
d14d33bf AM |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
f3ed775e DG |
16 | */ |
17 | ||
6c1c0768 | 18 | #define _LGPL_SOURCE |
b2064f54 | 19 | #include <assert.h> |
f3ed775e DG |
20 | #include <popt.h> |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
f3ed775e DG |
23 | #include <sys/stat.h> |
24 | #include <sys/types.h> | |
25 | #include <unistd.h> | |
5a0de755 | 26 | #include <inttypes.h> |
8f0d098b | 27 | #include <ctype.h> |
f3ed775e | 28 | |
343af227 | 29 | #include <common/sessiond-comm/sessiond-comm.h> |
f5436bfc | 30 | #include <common/compat/string.h> |
dbc478f3 | 31 | #include <common/compat/getenv.h> |
9f449915 | 32 | #include <common/string-utils/string-utils.h> |
dbc478f3 | 33 | #include <common/utils.h> |
f3ed775e | 34 | |
dbc478f3 | 35 | #include <lttng/constant.h> |
89476427 JRJ |
36 | /* Mi dependancy */ |
37 | #include <common/mi-lttng.h> | |
38 | ||
39 | #include "../command.h" | |
40 | ||
8ab7c0d9 MD |
41 | #if (LTTNG_SYMBOL_NAME_LEN == 256) |
42 | #define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255" | |
43 | #endif | |
44 | ||
f3ed775e DG |
45 | static char *opt_event_list; |
46 | static int opt_event_type; | |
0cda4f28 MD |
47 | static const char *opt_loglevel; |
48 | static int opt_loglevel_type; | |
6181537c | 49 | static int opt_kernel; |
5440dc42 | 50 | static char *opt_session_name; |
f3ed775e | 51 | static int opt_userspace; |
b9dfb167 | 52 | static int opt_jul; |
5cdb6027 | 53 | static int opt_log4j; |
0e115563 | 54 | static int opt_python; |
f3ed775e | 55 | static int opt_enable_all; |
cf0e5467 | 56 | static char *opt_probe; |
dcabc190 | 57 | static char *opt_userspace_probe; |
8f0d098b | 58 | static char *opt_function; |
f3ed775e | 59 | static char *opt_channel_name; |
53a80697 | 60 | static char *opt_filter; |
fac3366c | 61 | static char *opt_exclude; |
f3ed775e | 62 | |
4fc83d94 PP |
63 | #ifdef LTTNG_EMBED_HELP |
64 | static const char help_msg[] = | |
65 | #include <lttng-enable-event.1.h> | |
66 | ; | |
67 | #endif | |
68 | ||
f3ed775e DG |
69 | enum { |
70 | OPT_HELP = 1, | |
f3ed775e | 71 | OPT_TRACEPOINT, |
cf0e5467 | 72 | OPT_PROBE, |
dcabc190 | 73 | OPT_USERSPACE_PROBE, |
f3ed775e | 74 | OPT_FUNCTION, |
a54bd42d | 75 | OPT_SYSCALL, |
eeac7d46 | 76 | OPT_USERSPACE, |
0cda4f28 MD |
77 | OPT_LOGLEVEL, |
78 | OPT_LOGLEVEL_ONLY, | |
679b4943 | 79 | OPT_LIST_OPTIONS, |
53a80697 | 80 | OPT_FILTER, |
fac3366c | 81 | OPT_EXCLUDE, |
f3ed775e DG |
82 | }; |
83 | ||
cd80958d | 84 | static struct lttng_handle *handle; |
89476427 | 85 | static struct mi_writer *writer; |
cd80958d | 86 | |
f3ed775e DG |
87 | static struct poptOption long_options[] = { |
88 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
89 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 90 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e14f64a8 | 91 | {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0}, |
f3ed775e DG |
92 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
93 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, | |
d78d6610 | 94 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, |
b9dfb167 | 95 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
5cdb6027 | 96 | {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, |
0e115563 | 97 | {"python", 'p', POPT_ARG_VAL, &opt_python, 1, 0, 0}, |
f3ed775e | 98 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0}, |
7ebae521 | 99 | {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0}, |
dcabc190 | 100 | {"userspace-probe",0, POPT_ARG_STRING, &opt_userspace_probe, OPT_USERSPACE_PROBE, 0, 0}, |
40e9d5d3 | 101 | {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0}, |
7ebae521 | 102 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0}, |
0cda4f28 MD |
103 | {"loglevel", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL, 0, 0}, |
104 | {"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0}, | |
679b4943 | 105 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
53a80697 | 106 | {"filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0}, |
fac3366c | 107 | {"exclude", 'x', POPT_ARG_STRING, &opt_exclude, OPT_EXCLUDE, 0, 0}, |
f3ed775e DG |
108 | {0, 0, 0, 0, 0, 0, 0} |
109 | }; | |
110 | ||
0d63dd19 | 111 | /* |
6181537c | 112 | * Parse probe options. |
0d63dd19 | 113 | */ |
cf0e5467 | 114 | static int parse_probe_opts(struct lttng_event *ev, char *opt) |
0d63dd19 | 115 | { |
49d4e302 JRJ |
116 | int ret = CMD_SUCCESS; |
117 | int match; | |
8ff0bbd0 | 118 | char s_hex[19]; |
8ab7c0d9 | 119 | #define S_HEX_LEN_SCANF_IS_A_BROKEN_API "18" /* 18 is (19 - 1) (\0 is extra) */ |
0d63dd19 DG |
120 | char name[LTTNG_SYMBOL_NAME_LEN]; |
121 | ||
122 | if (opt == NULL) { | |
49d4e302 | 123 | ret = CMD_ERROR; |
8f0d098b | 124 | goto end; |
0d63dd19 DG |
125 | } |
126 | ||
127 | /* Check for symbol+offset */ | |
49d4e302 | 128 | match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API |
8ab7c0d9 | 129 | "[^'+']+%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", name, s_hex); |
49d4e302 | 130 | if (match == 2) { |
7d29a247 | 131 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 132 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
cf0e5467 | 133 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
9d035200 | 134 | if (*s_hex == '\0') { |
8ff0bbd0 | 135 | ERR("Invalid probe offset %s", s_hex); |
49d4e302 | 136 | ret = CMD_ERROR; |
8f0d098b | 137 | goto end; |
0d63dd19 | 138 | } |
8ff0bbd0 | 139 | ev->attr.probe.offset = strtoul(s_hex, NULL, 0); |
cf0e5467 | 140 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); |
3000dc78 | 141 | ev->attr.probe.addr = 0; |
8f0d098b MD |
142 | goto end; |
143 | } | |
144 | ||
145 | /* Check for symbol */ | |
146 | if (isalpha(name[0])) { | |
49d4e302 | 147 | match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s", |
8ab7c0d9 | 148 | name); |
49d4e302 | 149 | if (match == 1) { |
8f0d098b | 150 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 151 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
8f0d098b MD |
152 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
153 | ev->attr.probe.offset = 0; | |
154 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); | |
155 | ev->attr.probe.addr = 0; | |
156 | goto end; | |
157 | } | |
0d63dd19 DG |
158 | } |
159 | ||
160 | /* Check for address */ | |
49d4e302 JRJ |
161 | match = sscanf(opt, "%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", s_hex); |
162 | if (match > 0) { | |
9d035200 | 163 | if (*s_hex == '\0') { |
8ff0bbd0 | 164 | ERR("Invalid probe address %s", s_hex); |
49d4e302 | 165 | ret = CMD_ERROR; |
8f0d098b | 166 | goto end; |
0d63dd19 | 167 | } |
8ff0bbd0 | 168 | ev->attr.probe.addr = strtoul(s_hex, NULL, 0); |
cf0e5467 | 169 | DBG("probe addr %" PRIu64, ev->attr.probe.addr); |
3000dc78 DG |
170 | ev->attr.probe.offset = 0; |
171 | memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN); | |
8f0d098b | 172 | goto end; |
0d63dd19 DG |
173 | } |
174 | ||
175 | /* No match */ | |
49d4e302 | 176 | ret = CMD_ERROR; |
0d63dd19 | 177 | |
8f0d098b | 178 | end: |
0d63dd19 DG |
179 | return ret; |
180 | } | |
181 | ||
dbc478f3 FD |
182 | /* |
183 | * Walk the directories in the PATH environment variable to find the target | |
184 | * binary passed as parameter. | |
185 | * | |
186 | * On success, the full path of the binary is copied in binary_full_path out | |
187 | * parameter. This buffer is allocated by the caller and must be at least | |
188 | * LTTNG_PATH_MAX bytes long. | |
189 | * On failure, returns -1; | |
190 | */ | |
191 | static int walk_command_search_path(const char *binary, char *binary_full_path) | |
192 | { | |
193 | char *tentative_binary_path = NULL; | |
194 | char *command_search_path = NULL; | |
195 | char *curr_search_dir_end = NULL; | |
196 | char *curr_search_dir = NULL; | |
197 | struct stat stat_output; | |
198 | int ret = 0; | |
199 | ||
200 | command_search_path = lttng_secure_getenv("PATH"); | |
201 | if (!command_search_path) { | |
202 | ret = -1; | |
203 | goto end; | |
204 | } | |
205 | ||
206 | /* | |
207 | * Duplicate the $PATH string as the char pointer returned by getenv() should | |
208 | * not be modified. | |
209 | */ | |
210 | command_search_path = strdup(command_search_path); | |
211 | if (!command_search_path) { | |
212 | ret = -1; | |
213 | goto end; | |
214 | } | |
215 | ||
216 | /* | |
217 | * This char array is used to concatenate path to binary to look for | |
218 | * the binary. | |
219 | */ | |
220 | tentative_binary_path = zmalloc(LTTNG_PATH_MAX * sizeof(char)); | |
221 | if (!tentative_binary_path) { | |
222 | ret = -1; | |
223 | goto alloc_error; | |
224 | } | |
225 | ||
226 | curr_search_dir = command_search_path; | |
227 | do { | |
228 | /* | |
229 | * Split on ':'. The return value of this call points to the | |
230 | * matching character. | |
231 | */ | |
232 | curr_search_dir_end = strchr(curr_search_dir, ':'); | |
233 | if (curr_search_dir_end != NULL) { | |
234 | /* | |
235 | * Add a NULL byte to the end of the first token so it | |
236 | * can be used as a string. | |
237 | */ | |
238 | curr_search_dir_end[0] = '\0'; | |
239 | } | |
240 | ||
241 | /* Empty the tentative path */ | |
242 | memset(tentative_binary_path, 0, LTTNG_PATH_MAX * sizeof(char)); | |
243 | ||
244 | /* | |
245 | * Build the tentative path to the binary using the current | |
246 | * search directory and the name of the binary. | |
247 | */ | |
248 | ret = snprintf(tentative_binary_path, LTTNG_PATH_MAX, "%s/%s", | |
249 | curr_search_dir, binary); | |
250 | if (ret < 0) { | |
251 | goto free_binary_path; | |
252 | } | |
253 | if (ret < LTTNG_PATH_MAX) { | |
254 | /* | |
255 | * Use STAT(2) to see if the file exists. | |
256 | */ | |
257 | ret = stat(tentative_binary_path, &stat_output); | |
258 | if (ret == 0) { | |
259 | /* | |
260 | * Verify that it is a regular file or a | |
261 | * symlink and not a special file (e.g. | |
262 | * device). | |
263 | */ | |
264 | if (S_ISREG(stat_output.st_mode) | |
265 | || S_ISLNK(stat_output.st_mode)) { | |
266 | /* | |
267 | * Found a match, set the out parameter | |
268 | * and return success. | |
269 | */ | |
270 | ret = lttng_strncpy(binary_full_path, | |
271 | tentative_binary_path, | |
272 | LTTNG_PATH_MAX); | |
273 | if (ret == -1) { | |
274 | ERR("Source path does not fit " | |
275 | "in destination buffer."); | |
276 | } | |
277 | goto free_binary_path; | |
278 | } | |
279 | } | |
280 | } | |
281 | /* Go to the next entry in the $PATH variable. */ | |
282 | curr_search_dir = curr_search_dir_end + 1; | |
283 | } while (curr_search_dir_end != NULL); | |
284 | ||
285 | free_binary_path: | |
286 | free(tentative_binary_path); | |
287 | alloc_error: | |
288 | free(command_search_path); | |
289 | end: | |
290 | return ret; | |
291 | } | |
292 | ||
dcabc190 FD |
293 | /* |
294 | * Parse userspace probe options | |
295 | * Set the userspace probe fields in the lttng_event struct and set the | |
296 | * target_path to the path to the binary. | |
297 | */ | |
298 | static int parse_userspace_probe_opts(struct lttng_event *ev, char *opt) | |
299 | { | |
300 | int ret = CMD_SUCCESS; | |
301 | int num_token; | |
302 | char **tokens; | |
303 | char *target_path = NULL; | |
304 | char *unescaped_target_path = NULL; | |
305 | char *real_target_path = NULL; | |
306 | char *symbol_name = NULL, *probe_name = NULL, *provider_name = NULL; | |
307 | struct lttng_userspace_probe_location *probe_location = NULL; | |
308 | struct lttng_userspace_probe_location_lookup_method *lookup_method = | |
309 | NULL; | |
310 | ||
311 | if (opt == NULL) { | |
312 | ret = CMD_ERROR; | |
313 | goto end; | |
314 | } | |
315 | ||
316 | /* | |
317 | * userspace probe fields are separated by ':'. | |
318 | */ | |
319 | tokens = strutils_split(opt, ':', 1); | |
320 | num_token = strutils_array_of_strings_len(tokens); | |
321 | ||
322 | /* | |
323 | * Early sanity check that the number of parameter is between 2 and 4 | |
324 | * inclusively. | |
325 | * elf:PATH:SYMBOL | |
326 | * std:PATH:PROVIDER_NAME:PROBE_NAME | |
327 | * PATH:SYMBOL (same behavior as ELF) | |
328 | */ | |
329 | if (num_token < 2 || num_token > 4) { | |
330 | ret = CMD_ERROR; | |
331 | goto end_string; | |
332 | } | |
333 | ||
334 | /* | |
335 | * Looking up the first parameter will tell the technique to use to | |
336 | * interpret the userspace probe/function description. | |
337 | */ | |
338 | switch (num_token) { | |
339 | case 2: | |
340 | /* When the probe type is omitted we assume ELF for now. */ | |
341 | case 3: | |
342 | if (num_token == 3 && strcmp(tokens[0], "elf") == 0) { | |
343 | target_path = tokens[1]; | |
344 | symbol_name = tokens[2]; | |
345 | } else if (num_token == 2) { | |
346 | target_path = tokens[0]; | |
347 | symbol_name = tokens[1]; | |
348 | } else { | |
349 | ret = CMD_ERROR; | |
350 | goto end_string; | |
351 | } | |
352 | lookup_method = | |
353 | lttng_userspace_probe_location_lookup_method_function_elf_create(); | |
354 | if (!lookup_method) { | |
355 | WARN("Failed to create ELF lookup method"); | |
356 | ret = CMD_ERROR; | |
357 | goto end_string; | |
358 | } | |
359 | break; | |
360 | case 4: | |
361 | if (strcmp(tokens[0], "sdt") == 0) { | |
362 | target_path = tokens[1]; | |
363 | provider_name = tokens[2]; | |
364 | probe_name = tokens[3]; | |
365 | } else { | |
366 | ret = CMD_ERROR; | |
367 | goto end_string; | |
368 | } | |
369 | lookup_method = | |
370 | lttng_userspace_probe_location_lookup_method_tracepoint_sdt_create(); | |
371 | if (!lookup_method) { | |
372 | WARN("Failed to create ELF lookup method"); | |
373 | ret = CMD_ERROR; | |
374 | goto end_string; | |
375 | } | |
376 | break; | |
377 | default: | |
378 | ret = CMD_ERROR; | |
379 | goto end_string; | |
380 | } | |
381 | ||
382 | /* strutils_unescape_string allocates a new char *. */ | |
383 | unescaped_target_path = strutils_unescape_string(target_path, 0); | |
384 | if (!unescaped_target_path) { | |
385 | ret = -LTTNG_ERR_INVALID; | |
386 | goto end_string; | |
387 | } | |
388 | ||
389 | /* | |
390 | * If there is not forward slash in the path. Walk the $PATH else | |
391 | * expand. | |
392 | */ | |
393 | if (strchr(target_path, '/') == NULL) { | |
394 | /* Walk the $PATH variable to find the targeted binary. */ | |
395 | real_target_path = zmalloc(LTTNG_PATH_MAX * sizeof(char)); | |
396 | if (!real_target_path) { | |
397 | PERROR("Error allocating path buffer"); | |
398 | ret = CMD_ERROR; | |
399 | goto end_unescaped_string; | |
400 | } | |
401 | ret = walk_command_search_path(target_path, real_target_path); | |
402 | if (ret) { | |
403 | ERR("Binary not found."); | |
404 | ret = CMD_ERROR; | |
405 | goto end_free_path; | |
406 | } | |
407 | } else { | |
408 | /* | |
409 | * Expand references to `/./` and `/../`. This function does not check | |
410 | * if the file exists. | |
411 | */ | |
412 | real_target_path = utils_expand_path_keep_symlink(target_path); | |
413 | if (!real_target_path) { | |
414 | ERR("Error expanding the path to binary."); | |
415 | ret = CMD_ERROR; | |
416 | goto end_free_path; | |
417 | } | |
418 | ||
419 | /* | |
420 | * Check if the file exists using access(2). If it does not, walk the | |
421 | * $PATH. | |
422 | */ | |
423 | ret = access(real_target_path, F_OK); | |
424 | if (ret) { | |
425 | ret = CMD_ERROR; | |
426 | goto end_free_path; | |
427 | } | |
428 | } | |
429 | ||
430 | switch (lttng_userspace_probe_location_lookup_method_get_type(lookup_method)) { | |
431 | case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_ELF: | |
432 | probe_location = lttng_userspace_probe_location_function_create( | |
433 | real_target_path, symbol_name, lookup_method); | |
434 | if (!probe_location) { | |
435 | WARN("Failed to create function probe location"); | |
436 | ret = CMD_ERROR; | |
437 | goto end_destroy_lookup_method; | |
438 | } | |
439 | ||
440 | /* Ownership transferred to probe_location. */ | |
441 | lookup_method = NULL; | |
442 | ||
443 | ret = lttng_event_set_userspace_probe_location(ev, probe_location); | |
444 | if (ret) { | |
445 | WARN("Failed to set probe location on event"); | |
446 | ret = CMD_ERROR; | |
447 | goto end_destroy_location; | |
448 | } | |
449 | break; | |
450 | case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_TRACEPOINT_SDT: | |
451 | probe_location = lttng_userspace_probe_location_tracepoint_create( | |
452 | real_target_path, provider_name, probe_name, lookup_method); | |
453 | if (!probe_location) { | |
454 | WARN("Failed to create function probe location"); | |
455 | ret = CMD_ERROR; | |
456 | goto end_destroy_lookup_method; | |
457 | } | |
458 | ||
459 | /* Ownership transferred to probe_location. */ | |
460 | lookup_method = NULL; | |
461 | ||
462 | ret = lttng_event_set_userspace_probe_location(ev, probe_location); | |
463 | if (ret) { | |
464 | WARN("Failed to set probe location on event"); | |
465 | ret = CMD_ERROR; | |
466 | goto end_destroy_location; | |
467 | } | |
468 | break; | |
469 | default: | |
470 | ret = CMD_ERROR; | |
471 | goto end_string; | |
472 | } | |
473 | ||
474 | switch (ev->type) { | |
475 | case LTTNG_EVENT_USERSPACE_PROBE: | |
476 | break; | |
477 | default: | |
478 | assert(0); | |
479 | } | |
480 | ||
481 | goto end; | |
482 | ||
483 | end_destroy_location: | |
484 | lttng_userspace_probe_location_destroy(probe_location); | |
485 | end_destroy_lookup_method: | |
486 | lttng_userspace_probe_location_lookup_method_destroy(lookup_method); | |
487 | end_free_path: | |
488 | /* | |
489 | * Free path that was allocated by the call to realpath() or when walking | |
490 | * the PATH. | |
491 | */ | |
492 | free(real_target_path); | |
493 | end_unescaped_string: | |
494 | free(unescaped_target_path); | |
495 | end_string: | |
496 | strutils_free_null_terminated_array_of_strings(tokens); | |
497 | end: | |
498 | return ret; | |
499 | } | |
500 | ||
5cdb6027 DG |
501 | /* |
502 | * Maps LOG4j loglevel from string to value | |
503 | */ | |
504 | static int loglevel_log4j_str_to_value(const char *inputstr) | |
505 | { | |
506 | int i = 0; | |
507 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
508 | ||
3712b110 JG |
509 | if (!inputstr || strlen(inputstr) == 0) { |
510 | return -1; | |
511 | } | |
512 | ||
5cdb6027 DG |
513 | /* |
514 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
515 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
516 | */ | |
517 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
518 | str[i] = toupper(inputstr[i]); | |
519 | i++; | |
520 | } | |
521 | str[i] = '\0'; | |
522 | ||
523 | if (!strcmp(str, "LOG4J_OFF") || !strcmp(str, "OFF")) { | |
524 | return LTTNG_LOGLEVEL_LOG4J_OFF; | |
525 | } else if (!strcmp(str, "LOG4J_FATAL") || !strcmp(str, "FATAL")) { | |
526 | return LTTNG_LOGLEVEL_LOG4J_FATAL; | |
527 | } else if (!strcmp(str, "LOG4J_ERROR") || !strcmp(str, "ERROR")) { | |
528 | return LTTNG_LOGLEVEL_LOG4J_ERROR; | |
529 | } else if (!strcmp(str, "LOG4J_WARN") || !strcmp(str, "WARN")) { | |
530 | return LTTNG_LOGLEVEL_LOG4J_WARN; | |
531 | } else if (!strcmp(str, "LOG4J_INFO") || !strcmp(str, "INFO")) { | |
532 | return LTTNG_LOGLEVEL_LOG4J_INFO; | |
533 | } else if (!strcmp(str, "LOG4J_DEBUG") || !strcmp(str, "DEBUG")) { | |
534 | return LTTNG_LOGLEVEL_LOG4J_DEBUG; | |
535 | } else if (!strcmp(str, "LOG4J_TRACE") || !strcmp(str, "TRACE")) { | |
536 | return LTTNG_LOGLEVEL_LOG4J_TRACE; | |
537 | } else if (!strcmp(str, "LOG4J_ALL") || !strcmp(str, "ALL")) { | |
538 | return LTTNG_LOGLEVEL_LOG4J_ALL; | |
539 | } else { | |
540 | return -1; | |
541 | } | |
542 | } | |
543 | ||
b2064f54 DG |
544 | /* |
545 | * Maps JUL loglevel from string to value | |
546 | */ | |
547 | static int loglevel_jul_str_to_value(const char *inputstr) | |
548 | { | |
549 | int i = 0; | |
550 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
551 | ||
3712b110 JG |
552 | if (!inputstr || strlen(inputstr) == 0) { |
553 | return -1; | |
554 | } | |
555 | ||
b2064f54 DG |
556 | /* |
557 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
558 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
559 | */ | |
560 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
561 | str[i] = toupper(inputstr[i]); | |
562 | i++; | |
563 | } | |
564 | str[i] = '\0'; | |
565 | ||
566 | if (!strcmp(str, "JUL_OFF") || !strcmp(str, "OFF")) { | |
567 | return LTTNG_LOGLEVEL_JUL_OFF; | |
568 | } else if (!strcmp(str, "JUL_SEVERE") || !strcmp(str, "SEVERE")) { | |
569 | return LTTNG_LOGLEVEL_JUL_SEVERE; | |
570 | } else if (!strcmp(str, "JUL_WARNING") || !strcmp(str, "WARNING")) { | |
571 | return LTTNG_LOGLEVEL_JUL_WARNING; | |
572 | } else if (!strcmp(str, "JUL_INFO") || !strcmp(str, "INFO")) { | |
573 | return LTTNG_LOGLEVEL_JUL_INFO; | |
574 | } else if (!strcmp(str, "JUL_CONFIG") || !strcmp(str, "CONFIG")) { | |
575 | return LTTNG_LOGLEVEL_JUL_CONFIG; | |
576 | } else if (!strcmp(str, "JUL_FINE") || !strcmp(str, "FINE")) { | |
577 | return LTTNG_LOGLEVEL_JUL_FINE; | |
578 | } else if (!strcmp(str, "JUL_FINER") || !strcmp(str, "FINER")) { | |
579 | return LTTNG_LOGLEVEL_JUL_FINER; | |
580 | } else if (!strcmp(str, "JUL_FINEST") || !strcmp(str, "FINEST")) { | |
581 | return LTTNG_LOGLEVEL_JUL_FINEST; | |
582 | } else if (!strcmp(str, "JUL_ALL") || !strcmp(str, "ALL")) { | |
583 | return LTTNG_LOGLEVEL_JUL_ALL; | |
584 | } else { | |
585 | return -1; | |
586 | } | |
587 | } | |
588 | ||
0e115563 DG |
589 | /* |
590 | * Maps Python loglevel from string to value | |
591 | */ | |
592 | static int loglevel_python_str_to_value(const char *inputstr) | |
593 | { | |
594 | int i = 0; | |
595 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
596 | ||
3712b110 JG |
597 | if (!inputstr || strlen(inputstr) == 0) { |
598 | return -1; | |
599 | } | |
600 | ||
0e115563 DG |
601 | /* |
602 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
603 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
604 | */ | |
605 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
606 | str[i] = toupper(inputstr[i]); | |
607 | i++; | |
608 | } | |
609 | str[i] = '\0'; | |
610 | ||
611 | if (!strcmp(str, "PYTHON_CRITICAL") || !strcmp(str, "CRITICAL")) { | |
612 | return LTTNG_LOGLEVEL_PYTHON_CRITICAL; | |
613 | } else if (!strcmp(str, "PYTHON_ERROR") || !strcmp(str, "ERROR")) { | |
614 | return LTTNG_LOGLEVEL_PYTHON_ERROR; | |
615 | } else if (!strcmp(str, "PYTHON_WARNING") || !strcmp(str, "WARNING")) { | |
616 | return LTTNG_LOGLEVEL_PYTHON_WARNING; | |
617 | } else if (!strcmp(str, "PYTHON_INFO") || !strcmp(str, "INFO")) { | |
618 | return LTTNG_LOGLEVEL_PYTHON_INFO; | |
619 | } else if (!strcmp(str, "PYTNON_DEBUG") || !strcmp(str, "DEBUG")) { | |
620 | return LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
621 | } else if (!strcmp(str, "PYTHON_NOTSET") || !strcmp(str, "NOTSET")) { | |
622 | return LTTNG_LOGLEVEL_PYTHON_NOTSET; | |
623 | } else { | |
624 | return -1; | |
625 | } | |
626 | } | |
627 | ||
8005f29a | 628 | /* |
0c8477c8 | 629 | * Maps loglevel from string to value |
8005f29a MD |
630 | */ |
631 | static | |
46839cc2 | 632 | int loglevel_str_to_value(const char *inputstr) |
8005f29a | 633 | { |
46839cc2 MD |
634 | int i = 0; |
635 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
636 | ||
3712b110 JG |
637 | if (!inputstr || strlen(inputstr) == 0) { |
638 | return -1; | |
639 | } | |
640 | ||
e051e07c DG |
641 | /* |
642 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
643 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
644 | */ | |
645 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
46839cc2 MD |
646 | str[i] = toupper(inputstr[i]); |
647 | i++; | |
648 | } | |
649 | str[i] = '\0'; | |
650 | if (!strcmp(str, "TRACE_EMERG") || !strcmp(str, "EMERG")) { | |
651 | return LTTNG_LOGLEVEL_EMERG; | |
652 | } else if (!strcmp(str, "TRACE_ALERT") || !strcmp(str, "ALERT")) { | |
653 | return LTTNG_LOGLEVEL_ALERT; | |
654 | } else if (!strcmp(str, "TRACE_CRIT") || !strcmp(str, "CRIT")) { | |
655 | return LTTNG_LOGLEVEL_CRIT; | |
656 | } else if (!strcmp(str, "TRACE_ERR") || !strcmp(str, "ERR")) { | |
657 | return LTTNG_LOGLEVEL_ERR; | |
658 | } else if (!strcmp(str, "TRACE_WARNING") || !strcmp(str, "WARNING")) { | |
659 | return LTTNG_LOGLEVEL_WARNING; | |
660 | } else if (!strcmp(str, "TRACE_NOTICE") || !strcmp(str, "NOTICE")) { | |
661 | return LTTNG_LOGLEVEL_NOTICE; | |
662 | } else if (!strcmp(str, "TRACE_INFO") || !strcmp(str, "INFO")) { | |
663 | return LTTNG_LOGLEVEL_INFO; | |
664 | } else if (!strcmp(str, "TRACE_DEBUG_SYSTEM") || !strcmp(str, "DEBUG_SYSTEM") || !strcmp(str, "SYSTEM")) { | |
665 | return LTTNG_LOGLEVEL_DEBUG_SYSTEM; | |
666 | } else if (!strcmp(str, "TRACE_DEBUG_PROGRAM") || !strcmp(str, "DEBUG_PROGRAM") || !strcmp(str, "PROGRAM")) { | |
667 | return LTTNG_LOGLEVEL_DEBUG_PROGRAM; | |
668 | } else if (!strcmp(str, "TRACE_DEBUG_PROCESS") || !strcmp(str, "DEBUG_PROCESS") || !strcmp(str, "PROCESS")) { | |
669 | return LTTNG_LOGLEVEL_DEBUG_PROCESS; | |
670 | } else if (!strcmp(str, "TRACE_DEBUG_MODULE") || !strcmp(str, "DEBUG_MODULE") || !strcmp(str, "MODULE")) { | |
671 | return LTTNG_LOGLEVEL_DEBUG_MODULE; | |
672 | } else if (!strcmp(str, "TRACE_DEBUG_UNIT") || !strcmp(str, "DEBUG_UNIT") || !strcmp(str, "UNIT")) { | |
673 | return LTTNG_LOGLEVEL_DEBUG_UNIT; | |
674 | } else if (!strcmp(str, "TRACE_DEBUG_FUNCTION") || !strcmp(str, "DEBUG_FUNCTION") || !strcmp(str, "FUNCTION")) { | |
675 | return LTTNG_LOGLEVEL_DEBUG_FUNCTION; | |
676 | } else if (!strcmp(str, "TRACE_DEBUG_LINE") || !strcmp(str, "DEBUG_LINE") || !strcmp(str, "LINE")) { | |
677 | return LTTNG_LOGLEVEL_DEBUG_LINE; | |
678 | } else if (!strcmp(str, "TRACE_DEBUG") || !strcmp(str, "DEBUG")) { | |
679 | return LTTNG_LOGLEVEL_DEBUG; | |
8005f29a MD |
680 | } else { |
681 | return -1; | |
682 | } | |
683 | } | |
684 | ||
85076754 MD |
685 | static |
686 | const char *print_channel_name(const char *name) | |
687 | { | |
688 | return name ? : DEFAULT_CHANNEL_NAME; | |
689 | } | |
690 | ||
691 | static | |
692 | const char *print_raw_channel_name(const char *name) | |
693 | { | |
694 | return name ? : "<default>"; | |
695 | } | |
696 | ||
89476427 JRJ |
697 | /* |
698 | * Mi print exlcusion list | |
699 | */ | |
700 | static | |
9f449915 | 701 | int mi_print_exclusion(char **names) |
89476427 JRJ |
702 | { |
703 | int i, ret; | |
9f449915 | 704 | int count = names ? strutils_array_of_strings_len(names) : 0; |
89476427 JRJ |
705 | |
706 | assert(writer); | |
707 | ||
708 | if (count == 0) { | |
709 | ret = 0; | |
710 | goto end; | |
711 | } | |
712 | ret = mi_lttng_writer_open_element(writer, config_element_exclusions); | |
713 | if (ret) { | |
714 | goto end; | |
715 | } | |
716 | ||
717 | for (i = 0; i < count; i++) { | |
718 | ret = mi_lttng_writer_write_element_string(writer, | |
719 | config_element_exclusion, names[i]); | |
720 | if (ret) { | |
721 | goto end; | |
722 | } | |
723 | } | |
724 | ||
725 | /* Close exclusions element */ | |
726 | ret = mi_lttng_writer_close_element(writer); | |
727 | ||
728 | end: | |
729 | return ret; | |
730 | } | |
731 | ||
9c48cab3 JI |
732 | /* |
733 | * Return allocated string for pretty-printing exclusion names. | |
734 | */ | |
735 | static | |
9f449915 | 736 | char *print_exclusions(char **names) |
9c48cab3 JI |
737 | { |
738 | int length = 0; | |
739 | int i; | |
740 | const char *preamble = " excluding "; | |
741 | char *ret; | |
9f449915 | 742 | int count = names ? strutils_array_of_strings_len(names) : 0; |
9c48cab3 JI |
743 | |
744 | if (count == 0) { | |
745 | return strdup(""); | |
746 | } | |
747 | ||
748 | /* calculate total required length */ | |
749 | for (i = 0; i < count; i++) { | |
9f449915 | 750 | length += strlen(names[i]) + 4; |
9c48cab3 JI |
751 | } |
752 | ||
753 | /* add length of preamble + one for NUL - one for last (missing) comma */ | |
754 | length += strlen(preamble); | |
9f449915 | 755 | ret = zmalloc(length + 1); |
fd591b18 MD |
756 | if (!ret) { |
757 | return NULL; | |
758 | } | |
9c48cab3 JI |
759 | strncpy(ret, preamble, length); |
760 | for (i = 0; i < count; i++) { | |
9f449915 | 761 | strcat(ret, "\""); |
9c48cab3 | 762 | strcat(ret, names[i]); |
9f449915 | 763 | strcat(ret, "\""); |
9c48cab3 | 764 | if (i != count - 1) { |
9f449915 | 765 | strcat(ret, ", "); |
9c48cab3 JI |
766 | } |
767 | } | |
89476427 | 768 | |
9c48cab3 JI |
769 | return ret; |
770 | } | |
771 | ||
748bde76 | 772 | static |
9f449915 | 773 | int check_exclusion_subsets(const char *event_name, const char *exclusion) |
748bde76 | 774 | { |
9f449915 PP |
775 | bool warn = false; |
776 | int ret = 0; | |
777 | const char *e = event_name; | |
778 | const char *x = exclusion; | |
779 | ||
780 | /* Scan both the excluder and the event letter by letter */ | |
781 | while (true) { | |
782 | if (*e == '\\') { | |
783 | if (*x != *e) { | |
784 | warn = true; | |
785 | goto end; | |
786 | } | |
748bde76 | 787 | |
9f449915 PP |
788 | e++; |
789 | x++; | |
790 | goto cmp_chars; | |
791 | } | |
792 | ||
793 | if (*x == '*') { | |
794 | /* Event is a subset of the excluder */ | |
795 | ERR("Event %s: %s excludes all events from %s", | |
796 | event_name, exclusion, event_name); | |
797 | goto error; | |
798 | } | |
799 | ||
800 | if (*e == '*') { | |
801 | /* | |
802 | * Reached the end of the event name before the | |
803 | * end of the exclusion: this is valid. | |
804 | */ | |
805 | goto end; | |
806 | } | |
807 | ||
808 | cmp_chars: | |
809 | if (*x != *e) { | |
810 | warn = true; | |
811 | break; | |
812 | } | |
813 | ||
814 | x++; | |
815 | e++; | |
748bde76 JI |
816 | } |
817 | ||
9f449915 | 818 | goto end; |
748bde76 | 819 | |
9f449915 PP |
820 | error: |
821 | ret = -1; | |
748bde76 | 822 | |
9f449915 PP |
823 | end: |
824 | if (warn) { | |
825 | WARN("Event %s: %s does not exclude any events from %s", | |
826 | event_name, exclusion, event_name); | |
827 | } | |
748bde76 | 828 | |
9f449915 PP |
829 | return ret; |
830 | } | |
831 | ||
9f449915 PP |
832 | static |
833 | int create_exclusion_list_and_validate(const char *event_name, | |
834 | const char *exclusions_arg, | |
835 | char ***exclusion_list) | |
836 | { | |
837 | int ret = 0; | |
838 | char **exclusions = NULL; | |
839 | ||
840 | /* Event name must be a valid globbing pattern to allow exclusions. */ | |
841 | if (!strutils_is_star_glob_pattern(event_name)) { | |
842 | ERR("Event %s: Exclusions can only be used with a globbing pattern", | |
843 | event_name); | |
844 | goto error; | |
845 | } | |
846 | ||
847 | /* Split exclusions. */ | |
848 | exclusions = strutils_split(exclusions_arg, ',', true); | |
849 | if (!exclusions) { | |
850 | goto error; | |
851 | } | |
852 | ||
853 | /* | |
854 | * If the event name is a star-at-end only globbing pattern, | |
855 | * then we can validate the individual exclusions. Otherwise | |
856 | * all exclusions are passed to the session daemon. | |
857 | */ | |
858 | if (strutils_is_star_at_the_end_only_glob_pattern(event_name)) { | |
859 | char * const *exclusion; | |
860 | ||
861 | for (exclusion = exclusions; *exclusion; exclusion++) { | |
862 | if (!strutils_is_star_glob_pattern(*exclusion) || | |
863 | strutils_is_star_at_the_end_only_glob_pattern(*exclusion)) { | |
8aa579d4 | 864 | ret = check_exclusion_subsets(event_name, *exclusion); |
9f449915 | 865 | if (ret) { |
5ef79758 MD |
866 | goto error; |
867 | } | |
748bde76 | 868 | } |
748bde76 JI |
869 | } |
870 | } | |
9f449915 PP |
871 | |
872 | *exclusion_list = exclusions; | |
873 | ||
748bde76 | 874 | goto end; |
9f449915 | 875 | |
748bde76 | 876 | error: |
9f449915 PP |
877 | ret = -1; |
878 | strutils_free_null_terminated_array_of_strings(exclusions); | |
879 | ||
748bde76 | 880 | end: |
748bde76 JI |
881 | return ret; |
882 | } | |
502bbe89 | 883 | |
9f449915 PP |
884 | static void warn_on_truncated_exclusion_names(char * const *exclusion_list, |
885 | int *warn) | |
502bbe89 | 886 | { |
9f449915 | 887 | char * const *exclusion; |
502bbe89 | 888 | |
9f449915 PP |
889 | for (exclusion = exclusion_list; *exclusion; exclusion++) { |
890 | if (strlen(*exclusion) >= LTTNG_SYMBOL_NAME_LEN) { | |
502bbe89 | 891 | WARN("Event exclusion \"%s\" will be truncated", |
9f449915 | 892 | *exclusion); |
502bbe89 PP |
893 | *warn = 1; |
894 | } | |
895 | } | |
896 | } | |
897 | ||
f3ed775e | 898 | /* |
6181537c | 899 | * Enabling event using the lttng API. |
89476427 | 900 | * Note: in case of error only the last error code will be return. |
f3ed775e | 901 | */ |
cd80958d | 902 | static int enable_events(char *session_name) |
f3ed775e | 903 | { |
89476427 JRJ |
904 | int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS; |
905 | int error_holder = CMD_SUCCESS, warn = 0, error = 0, success = 1; | |
b73d0b29 | 906 | char *event_name, *channel_name = NULL; |
91744e14 | 907 | struct lttng_event *ev; |
7d29a247 | 908 | struct lttng_domain dom; |
7ed70bc9 | 909 | char **exclusion_list = NULL; |
f3ed775e | 910 | |
441c16a7 MD |
911 | memset(&dom, 0, sizeof(dom)); |
912 | ||
91744e14 FD |
913 | ev = lttng_event_create(); |
914 | if (!ev) { | |
915 | ret = CMD_ERROR; | |
916 | goto error; | |
917 | } | |
918 | ||
53a80697 | 919 | if (opt_kernel) { |
67b58630 JG |
920 | if (opt_loglevel) { |
921 | WARN("Kernel loglevels are not supported."); | |
922 | } | |
53a80697 MD |
923 | } |
924 | ||
7d29a247 DG |
925 | /* Create lttng domain */ |
926 | if (opt_kernel) { | |
927 | dom.type = LTTNG_DOMAIN_KERNEL; | |
7972aab2 | 928 | dom.buf_type = LTTNG_BUFFER_GLOBAL; |
d78d6610 | 929 | } else if (opt_userspace) { |
2bdd86d4 | 930 | dom.type = LTTNG_DOMAIN_UST; |
7972aab2 | 931 | /* Default. */ |
8692d4e5 | 932 | dom.buf_type = LTTNG_BUFFER_PER_UID; |
b9dfb167 DG |
933 | } else if (opt_jul) { |
934 | dom.type = LTTNG_DOMAIN_JUL; | |
935 | /* Default. */ | |
936 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
5cdb6027 DG |
937 | } else if (opt_log4j) { |
938 | dom.type = LTTNG_DOMAIN_LOG4J; | |
939 | /* Default. */ | |
940 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
0e115563 DG |
941 | } else if (opt_python) { |
942 | dom.type = LTTNG_DOMAIN_PYTHON; | |
943 | /* Default. */ | |
944 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
6181537c | 945 | } else { |
3ecec76a PP |
946 | /* Checked by the caller. */ |
947 | assert(0); | |
2bdd86d4 | 948 | } |
7d29a247 | 949 | |
8b08c525 AB |
950 | if (opt_exclude) { |
951 | switch (dom.type) { | |
952 | case LTTNG_DOMAIN_KERNEL: | |
953 | case LTTNG_DOMAIN_JUL: | |
954 | case LTTNG_DOMAIN_LOG4J: | |
955 | case LTTNG_DOMAIN_PYTHON: | |
956 | ERR("Event name exclusions are not yet implemented for %s events", | |
957 | get_domain_str(dom.type)); | |
958 | ret = CMD_ERROR; | |
959 | goto error; | |
960 | case LTTNG_DOMAIN_UST: | |
961 | /* Exclusions supported */ | |
962 | break; | |
963 | default: | |
964 | assert(0); | |
965 | } | |
d5dd17fd JI |
966 | } |
967 | ||
85076754 | 968 | channel_name = opt_channel_name; |
ae856491 | 969 | |
cd80958d DG |
970 | handle = lttng_create_handle(session_name, &dom); |
971 | if (handle == NULL) { | |
972 | ret = -1; | |
973 | goto error; | |
974 | } | |
1aef21b6 | 975 | |
89476427 JRJ |
976 | /* Prepare Mi */ |
977 | if (lttng_opt_mi) { | |
978 | /* Open a events element */ | |
979 | ret = mi_lttng_writer_open_element(writer, config_element_events); | |
980 | if (ret) { | |
981 | ret = CMD_ERROR; | |
982 | goto error; | |
983 | } | |
984 | } | |
985 | ||
cd80958d | 986 | if (opt_enable_all) { |
8c9ae521 | 987 | /* Default setup for enable all */ |
75e8c5ab | 988 | if (opt_kernel) { |
91744e14 FD |
989 | ev->type = opt_event_type; |
990 | strcpy(ev->name, "*"); | |
300b8fd5 | 991 | /* kernel loglevels not implemented */ |
91744e14 | 992 | ev->loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
75e8c5ab | 993 | } else { |
91744e14 FD |
994 | ev->type = LTTNG_EVENT_TRACEPOINT; |
995 | strcpy(ev->name, "*"); | |
996 | ev->loglevel_type = opt_loglevel_type; | |
300b8fd5 | 997 | if (opt_loglevel) { |
0e115563 | 998 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 | 999 | if (opt_userspace) { |
91744e14 | 1000 | ev->loglevel = loglevel_str_to_value(opt_loglevel); |
b2064f54 | 1001 | } else if (opt_jul) { |
91744e14 | 1002 | ev->loglevel = loglevel_jul_str_to_value(opt_loglevel); |
5cdb6027 | 1003 | } else if (opt_log4j) { |
91744e14 | 1004 | ev->loglevel = loglevel_log4j_str_to_value(opt_loglevel); |
0e115563 | 1005 | } else if (opt_python) { |
91744e14 | 1006 | ev->loglevel = loglevel_python_str_to_value(opt_loglevel); |
b2064f54 | 1007 | } |
91744e14 | 1008 | if (ev->loglevel == -1) { |
300b8fd5 | 1009 | ERR("Unknown loglevel %s", opt_loglevel); |
2f70b271 | 1010 | ret = -LTTNG_ERR_INVALID; |
300b8fd5 MD |
1011 | goto error; |
1012 | } | |
22e25b71 | 1013 | } else { |
0e115563 | 1014 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 | 1015 | if (opt_userspace) { |
91744e14 | 1016 | ev->loglevel = -1; |
34aa3685 | 1017 | } else if (opt_jul) { |
91744e14 | 1018 | ev->loglevel = LTTNG_LOGLEVEL_JUL_ALL; |
34aa3685 | 1019 | } else if (opt_log4j) { |
91744e14 | 1020 | ev->loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; |
0e115563 | 1021 | } else if (opt_python) { |
91744e14 | 1022 | ev->loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; |
b2064f54 | 1023 | } |
300b8fd5 | 1024 | } |
75e8c5ab | 1025 | } |
8c9ae521 | 1026 | |
7ed70bc9 | 1027 | if (opt_exclude) { |
9f449915 PP |
1028 | ret = create_exclusion_list_and_validate("*", |
1029 | opt_exclude, &exclusion_list); | |
1030 | if (ret) { | |
1031 | ret = CMD_ERROR; | |
7ed70bc9 JI |
1032 | goto error; |
1033 | } | |
502bbe89 | 1034 | |
91744e14 | 1035 | ev->exclusion = 1; |
502bbe89 | 1036 | warn_on_truncated_exclusion_names(exclusion_list, |
9f449915 | 1037 | &warn); |
7ed70bc9 | 1038 | } |
025faf73 | 1039 | if (!opt_filter) { |
7ed70bc9 | 1040 | ret = lttng_enable_event_with_exclusions(handle, |
91744e14 | 1041 | ev, channel_name, |
7ed70bc9 | 1042 | NULL, |
9f449915 PP |
1043 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, |
1044 | exclusion_list); | |
025faf73 DG |
1045 | if (ret < 0) { |
1046 | switch (-ret) { | |
1047 | case LTTNG_ERR_KERN_EVENT_EXIST: | |
1048 | WARN("Kernel events already enabled (channel %s, session %s)", | |
85076754 | 1049 | print_channel_name(channel_name), session_name); |
89476427 | 1050 | warn = 1; |
025faf73 | 1051 | break; |
45d5d421 CB |
1052 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1053 | { | |
1054 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1055 | ERR("Events: %s (channel %s, session %s)", | |
1056 | msg, | |
1057 | print_channel_name(channel_name), | |
1058 | session_name); | |
1059 | error = 1; | |
1060 | break; | |
1061 | } | |
025faf73 DG |
1062 | default: |
1063 | ERR("Events: %s (channel %s, session %s)", | |
85076754 MD |
1064 | lttng_strerror(ret), |
1065 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
1066 | ? print_raw_channel_name(channel_name) | |
1067 | : print_channel_name(channel_name), | |
1068 | session_name); | |
89476427 | 1069 | error = 1; |
025faf73 DG |
1070 | break; |
1071 | } | |
1072 | goto end; | |
42224349 | 1073 | } |
8c9ae521 | 1074 | |
025faf73 DG |
1075 | switch (opt_event_type) { |
1076 | case LTTNG_EVENT_TRACEPOINT: | |
67b58630 | 1077 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9f449915 | 1078 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
1079 | |
1080 | if (!exclusion_string) { | |
1081 | PERROR("Cannot allocate exclusion_string"); | |
1082 | error = 1; | |
1083 | goto end; | |
1084 | } | |
9c48cab3 | 1085 | MSG("All %s tracepoints%s are enabled in channel %s for loglevel %s", |
b9dfb167 | 1086 | get_domain_str(dom.type), |
9c48cab3 | 1087 | exclusion_string, |
85076754 | 1088 | print_channel_name(channel_name), |
025faf73 | 1089 | opt_loglevel); |
9c48cab3 | 1090 | free(exclusion_string); |
025faf73 | 1091 | } else { |
9f449915 | 1092 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
1093 | |
1094 | if (!exclusion_string) { | |
1095 | PERROR("Cannot allocate exclusion_string"); | |
1096 | error = 1; | |
1097 | goto end; | |
1098 | } | |
9c48cab3 | 1099 | MSG("All %s tracepoints%s are enabled in channel %s", |
b9dfb167 | 1100 | get_domain_str(dom.type), |
9c48cab3 | 1101 | exclusion_string, |
85076754 | 1102 | print_channel_name(channel_name)); |
9c48cab3 | 1103 | free(exclusion_string); |
025faf73 DG |
1104 | } |
1105 | break; | |
1106 | case LTTNG_EVENT_SYSCALL: | |
1107 | if (opt_kernel) { | |
6e911cad MD |
1108 | MSG("All %s system calls are enabled in channel %s", |
1109 | get_domain_str(dom.type), | |
85076754 | 1110 | print_channel_name(channel_name)); |
025faf73 DG |
1111 | } |
1112 | break; | |
1113 | case LTTNG_EVENT_ALL: | |
67b58630 | 1114 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9f449915 | 1115 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
1116 | |
1117 | if (!exclusion_string) { | |
1118 | PERROR("Cannot allocate exclusion_string"); | |
1119 | error = 1; | |
1120 | goto end; | |
1121 | } | |
9c48cab3 | 1122 | MSG("All %s events%s are enabled in channel %s for loglevel %s", |
b9dfb167 | 1123 | get_domain_str(dom.type), |
9c48cab3 | 1124 | exclusion_string, |
85076754 | 1125 | print_channel_name(channel_name), |
025faf73 | 1126 | opt_loglevel); |
9c48cab3 | 1127 | free(exclusion_string); |
025faf73 | 1128 | } else { |
9f449915 | 1129 | char *exclusion_string = print_exclusions(exclusion_list); |
5ef79758 MD |
1130 | |
1131 | if (!exclusion_string) { | |
1132 | PERROR("Cannot allocate exclusion_string"); | |
1133 | error = 1; | |
1134 | goto end; | |
1135 | } | |
9c48cab3 | 1136 | MSG("All %s events%s are enabled in channel %s", |
b9dfb167 | 1137 | get_domain_str(dom.type), |
9c48cab3 | 1138 | exclusion_string, |
85076754 | 1139 | print_channel_name(channel_name)); |
9c48cab3 | 1140 | free(exclusion_string); |
025faf73 DG |
1141 | } |
1142 | break; | |
1143 | default: | |
1144 | /* | |
1145 | * We should not be here since lttng_enable_event should have | |
1146 | * failed on the event type. | |
1147 | */ | |
1148 | goto error; | |
57064ada | 1149 | } |
f3ed775e | 1150 | } |
89476427 | 1151 | |
025faf73 | 1152 | if (opt_filter) { |
91744e14 | 1153 | command_ret = lttng_enable_event_with_exclusions(handle, ev, channel_name, |
9f449915 PP |
1154 | opt_filter, |
1155 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, | |
1156 | exclusion_list); | |
89476427 JRJ |
1157 | if (command_ret < 0) { |
1158 | switch (-command_ret) { | |
16363652 | 1159 | case LTTNG_ERR_FILTER_EXIST: |
85076754 | 1160 | WARN("Filter on all events is already enabled" |
16363652 | 1161 | " (channel %s, session %s)", |
85076754 | 1162 | print_channel_name(channel_name), session_name); |
89476427 | 1163 | warn = 1; |
16363652 | 1164 | break; |
45d5d421 CB |
1165 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1166 | { | |
1167 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1168 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", | |
1169 | msg, | |
1170 | print_channel_name(channel_name), | |
1171 | session_name, opt_filter); | |
1172 | error = 1; | |
1173 | break; | |
1174 | } | |
16363652 | 1175 | default: |
85076754 | 1176 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", |
da3d7d0e JRJ |
1177 | lttng_strerror(command_ret), |
1178 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1179 | ? print_raw_channel_name(channel_name) |
1180 | : print_channel_name(channel_name), | |
1181 | session_name, opt_filter); | |
89476427 | 1182 | error = 1; |
16363652 DG |
1183 | break; |
1184 | } | |
89476427 | 1185 | error_holder = command_ret; |
16363652 | 1186 | } else { |
91744e14 | 1187 | ev->filter = 1; |
16363652 DG |
1188 | MSG("Filter '%s' successfully set", opt_filter); |
1189 | } | |
1190 | } | |
89476427 JRJ |
1191 | |
1192 | if (lttng_opt_mi) { | |
1193 | /* The wildcard * is used for kernel and ust domain to | |
1194 | * represent ALL. We copy * in event name to force the wildcard use | |
1195 | * for kernel domain | |
1196 | * | |
1197 | * Note: this is strictly for semantic and printing while in | |
1198 | * machine interface mode. | |
1199 | */ | |
91744e14 | 1200 | strcpy(ev->name, "*"); |
89476427 JRJ |
1201 | |
1202 | /* If we reach here the events are enabled */ | |
1203 | if (!error && !warn) { | |
91744e14 | 1204 | ev->enabled = 1; |
89476427 | 1205 | } else { |
91744e14 | 1206 | ev->enabled = 0; |
89476427 JRJ |
1207 | success = 0; |
1208 | } | |
91744e14 | 1209 | ret = mi_lttng_event(writer, ev, 1, handle->domain.type); |
89476427 JRJ |
1210 | if (ret) { |
1211 | ret = CMD_ERROR; | |
1212 | goto error; | |
1213 | } | |
1214 | ||
1215 | /* print exclusion */ | |
9f449915 | 1216 | ret = mi_print_exclusion(exclusion_list); |
89476427 JRJ |
1217 | if (ret) { |
1218 | ret = CMD_ERROR; | |
1219 | goto error; | |
1220 | } | |
1221 | ||
1222 | /* Success ? */ | |
1223 | ret = mi_lttng_writer_write_element_bool(writer, | |
1224 | mi_lttng_element_command_success, success); | |
1225 | if (ret) { | |
1226 | ret = CMD_ERROR; | |
1227 | goto error; | |
1228 | } | |
1229 | ||
1230 | /* Close event element */ | |
1231 | ret = mi_lttng_writer_close_element(writer); | |
1232 | if (ret) { | |
1233 | ret = CMD_ERROR; | |
1234 | goto error; | |
1235 | } | |
1236 | } | |
1237 | ||
8c9ae521 | 1238 | goto end; |
f3ed775e DG |
1239 | } |
1240 | ||
1241 | /* Strip event list */ | |
1242 | event_name = strtok(opt_event_list, ","); | |
1243 | while (event_name != NULL) { | |
6181537c | 1244 | /* Copy name and type of the event */ |
91744e14 FD |
1245 | strncpy(ev->name, event_name, LTTNG_SYMBOL_NAME_LEN); |
1246 | ev->name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
1247 | ev->type = opt_event_type; | |
6181537c | 1248 | |
f3ed775e DG |
1249 | /* Kernel tracer action */ |
1250 | if (opt_kernel) { | |
1251 | DBG("Enabling kernel event %s for channel %s", | |
85076754 MD |
1252 | event_name, |
1253 | print_channel_name(channel_name)); | |
f3ed775e DG |
1254 | |
1255 | switch (opt_event_type) { | |
29c62722 MD |
1256 | case LTTNG_EVENT_ALL: /* Enable tracepoints and syscalls */ |
1257 | /* If event name differs from *, select tracepoint. */ | |
91744e14 FD |
1258 | if (strcmp(ev->name, "*")) { |
1259 | ev->type = LTTNG_EVENT_TRACEPOINT; | |
29c62722 MD |
1260 | } |
1261 | break; | |
e6ddca71 | 1262 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 1263 | break; |
7d29a247 | 1264 | case LTTNG_EVENT_PROBE: |
91744e14 | 1265 | ret = parse_probe_opts(ev, opt_probe); |
49d4e302 | 1266 | if (ret) { |
cf0e5467 | 1267 | ERR("Unable to parse probe options"); |
91744e14 | 1268 | ret = CMD_ERROR; |
0d63dd19 DG |
1269 | goto error; |
1270 | } | |
f3ed775e | 1271 | break; |
dcabc190 FD |
1272 | case LTTNG_EVENT_USERSPACE_PROBE: |
1273 | ret = parse_userspace_probe_opts(ev, opt_userspace_probe); | |
1274 | if (ret) { | |
1275 | ERR("Unable to parse userspace probe options"); | |
1276 | ret = CMD_ERROR; | |
1277 | goto error; | |
1278 | } | |
1279 | break; | |
f3ed775e | 1280 | case LTTNG_EVENT_FUNCTION: |
91744e14 | 1281 | ret = parse_probe_opts(ev, opt_function); |
49d4e302 | 1282 | if (ret) { |
8f0d098b | 1283 | ERR("Unable to parse function probe options"); |
91744e14 | 1284 | ret = CMD_ERROR; |
8f0d098b MD |
1285 | goto error; |
1286 | } | |
1287 | break; | |
a54bd42d | 1288 | case LTTNG_EVENT_SYSCALL: |
91744e14 | 1289 | ev->type = LTTNG_EVENT_SYSCALL; |
c6aa2d41 | 1290 | break; |
f3ed775e | 1291 | default: |
1ab1ea0b | 1292 | ret = CMD_UNDEFINED; |
f3ed775e DG |
1293 | goto error; |
1294 | } | |
0cda4f28 | 1295 | |
0cda4f28 | 1296 | /* kernel loglevels not implemented */ |
91744e14 | 1297 | ev->loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
f3ed775e | 1298 | } else if (opt_userspace) { /* User-space tracer action */ |
300b8fd5 | 1299 | DBG("Enabling UST event %s for channel %s, loglevel %s", event_name, |
85076754 | 1300 | print_channel_name(channel_name), opt_loglevel ? : "<all>"); |
2bdd86d4 MD |
1301 | |
1302 | switch (opt_event_type) { | |
1303 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
1304 | /* Fall-through */ |
1305 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 1306 | /* Copy name and type of the event */ |
91744e14 FD |
1307 | ev->type = LTTNG_EVENT_TRACEPOINT; |
1308 | strncpy(ev->name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
1309 | ev->name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 MD |
1310 | break; |
1311 | case LTTNG_EVENT_PROBE: | |
1312 | case LTTNG_EVENT_FUNCTION: | |
2bdd86d4 | 1313 | case LTTNG_EVENT_SYSCALL: |
dcabc190 | 1314 | case LTTNG_EVENT_USERSPACE_PROBE: |
2bdd86d4 | 1315 | default: |
cc62c0c0 | 1316 | ERR("Event type not available for user-space tracing"); |
4ce78777 | 1317 | ret = CMD_UNSUPPORTED; |
2bdd86d4 MD |
1318 | goto error; |
1319 | } | |
0cda4f28 | 1320 | |
7ed70bc9 | 1321 | if (opt_exclude) { |
91744e14 | 1322 | ev->exclusion = 1; |
d5dd17fd JI |
1323 | if (opt_event_type != LTTNG_EVENT_ALL && opt_event_type != LTTNG_EVENT_TRACEPOINT) { |
1324 | ERR("Exclusion option can only be used with tracepoint events"); | |
1325 | ret = CMD_ERROR; | |
1326 | goto error; | |
1327 | } | |
7ed70bc9 | 1328 | /* Free previously allocated items */ |
9f449915 PP |
1329 | strutils_free_null_terminated_array_of_strings( |
1330 | exclusion_list); | |
1331 | exclusion_list = NULL; | |
1332 | ret = create_exclusion_list_and_validate( | |
1333 | event_name, opt_exclude, | |
1334 | &exclusion_list); | |
1335 | if (ret) { | |
1336 | ret = CMD_ERROR; | |
7ed70bc9 JI |
1337 | goto error; |
1338 | } | |
502bbe89 PP |
1339 | |
1340 | warn_on_truncated_exclusion_names( | |
9f449915 | 1341 | exclusion_list, &warn); |
7ed70bc9 JI |
1342 | } |
1343 | ||
91744e14 | 1344 | ev->loglevel_type = opt_loglevel_type; |
ed7f4083 | 1345 | if (opt_loglevel) { |
91744e14 FD |
1346 | ev->loglevel = loglevel_str_to_value(opt_loglevel); |
1347 | if (ev->loglevel == -1) { | |
8005f29a | 1348 | ERR("Unknown loglevel %s", opt_loglevel); |
2f70b271 | 1349 | ret = -LTTNG_ERR_INVALID; |
8005f29a MD |
1350 | goto error; |
1351 | } | |
22e25b71 | 1352 | } else { |
91744e14 | 1353 | ev->loglevel = -1; |
ed7f4083 | 1354 | } |
0e115563 | 1355 | } else if (opt_jul || opt_log4j || opt_python) { |
b9dfb167 DG |
1356 | if (opt_event_type != LTTNG_EVENT_ALL && |
1357 | opt_event_type != LTTNG_EVENT_TRACEPOINT) { | |
5cdb6027 | 1358 | ERR("Event type not supported for domain."); |
b9dfb167 DG |
1359 | ret = CMD_UNSUPPORTED; |
1360 | goto error; | |
1361 | } | |
b2064f54 | 1362 | |
91744e14 | 1363 | ev->loglevel_type = opt_loglevel_type; |
b2064f54 | 1364 | if (opt_loglevel) { |
5cdb6027 | 1365 | if (opt_jul) { |
91744e14 | 1366 | ev->loglevel = loglevel_jul_str_to_value(opt_loglevel); |
5cdb6027 | 1367 | } else if (opt_log4j) { |
91744e14 | 1368 | ev->loglevel = loglevel_log4j_str_to_value(opt_loglevel); |
0e115563 | 1369 | } else if (opt_python) { |
91744e14 | 1370 | ev->loglevel = loglevel_python_str_to_value(opt_loglevel); |
5cdb6027 | 1371 | } |
91744e14 | 1372 | if (ev->loglevel == -1) { |
b2064f54 DG |
1373 | ERR("Unknown loglevel %s", opt_loglevel); |
1374 | ret = -LTTNG_ERR_INVALID; | |
1375 | goto error; | |
1376 | } | |
1377 | } else { | |
5cdb6027 | 1378 | if (opt_jul) { |
91744e14 | 1379 | ev->loglevel = LTTNG_LOGLEVEL_JUL_ALL; |
5cdb6027 | 1380 | } else if (opt_log4j) { |
91744e14 | 1381 | ev->loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; |
0e115563 | 1382 | } else if (opt_python) { |
91744e14 | 1383 | ev->loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; |
5cdb6027 | 1384 | } |
b2064f54 | 1385 | } |
91744e14 FD |
1386 | ev->type = LTTNG_EVENT_TRACEPOINT; |
1387 | strncpy(ev->name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
1388 | ev->name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
f3ed775e | 1389 | } else { |
3ecec76a | 1390 | assert(0); |
f3ed775e DG |
1391 | } |
1392 | ||
025faf73 | 1393 | if (!opt_filter) { |
9c48cab3 JI |
1394 | char *exclusion_string; |
1395 | ||
89476427 | 1396 | command_ret = lttng_enable_event_with_exclusions(handle, |
91744e14 | 1397 | ev, channel_name, |
9f449915 PP |
1398 | NULL, |
1399 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, | |
1400 | exclusion_list); | |
1401 | exclusion_string = print_exclusions(exclusion_list); | |
5ef79758 MD |
1402 | if (!exclusion_string) { |
1403 | PERROR("Cannot allocate exclusion_string"); | |
1404 | error = 1; | |
1405 | goto end; | |
1406 | } | |
89476427 | 1407 | if (command_ret < 0) { |
025faf73 | 1408 | /* Turn ret to positive value to handle the positive error code */ |
89476427 | 1409 | switch (-command_ret) { |
025faf73 | 1410 | case LTTNG_ERR_KERN_EVENT_EXIST: |
9c48cab3 | 1411 | WARN("Kernel event %s%s already enabled (channel %s, session %s)", |
85076754 | 1412 | event_name, |
9c48cab3 | 1413 | exclusion_string, |
85076754 | 1414 | print_channel_name(channel_name), session_name); |
89476427 | 1415 | warn = 1; |
025faf73 | 1416 | break; |
45d5d421 CB |
1417 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1418 | { | |
1419 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1420 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, | |
1421 | exclusion_string, | |
1422 | msg, | |
1423 | print_channel_name(channel_name), | |
1424 | session_name); | |
1425 | error = 1; | |
1426 | break; | |
1427 | } | |
dcabc190 FD |
1428 | case LTTNG_ERR_SDT_PROBE_SEMAPHORE: |
1429 | ERR("SDT probes %s guarded by semaphores are not supported (channel %s, session %s)", | |
1430 | event_name, print_channel_name(channel_name), | |
1431 | session_name); | |
1432 | error = 1; | |
1433 | break; | |
025faf73 | 1434 | default: |
9c48cab3 JI |
1435 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, |
1436 | exclusion_string, | |
da3d7d0e JRJ |
1437 | lttng_strerror(command_ret), |
1438 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1439 | ? print_raw_channel_name(channel_name) |
1440 | : print_channel_name(channel_name), | |
1441 | session_name); | |
89476427 | 1442 | error = 1; |
025faf73 DG |
1443 | break; |
1444 | } | |
89476427 | 1445 | error_holder = command_ret; |
025faf73 | 1446 | } else { |
8274eeba AB |
1447 | switch (dom.type) { |
1448 | case LTTNG_DOMAIN_KERNEL: | |
1449 | case LTTNG_DOMAIN_UST: | |
49ceaa70 | 1450 | MSG("%s event %s%s created in channel %s", |
8274eeba AB |
1451 | get_domain_str(dom.type), |
1452 | event_name, | |
1453 | exclusion_string, | |
1454 | print_channel_name(channel_name)); | |
1455 | break; | |
1456 | case LTTNG_DOMAIN_JUL: | |
1457 | case LTTNG_DOMAIN_LOG4J: | |
1458 | case LTTNG_DOMAIN_PYTHON: | |
1459 | /* | |
1460 | * Don't print the default channel | |
1461 | * name for agent domains. | |
1462 | */ | |
895707da | 1463 | MSG("%s event %s%s enabled", |
8274eeba AB |
1464 | get_domain_str(dom.type), |
1465 | event_name, | |
1466 | exclusion_string); | |
1467 | break; | |
1468 | default: | |
1469 | assert(0); | |
49ceaa70 | 1470 | } |
42224349 | 1471 | } |
9c48cab3 | 1472 | free(exclusion_string); |
6181537c | 1473 | } |
025faf73 DG |
1474 | |
1475 | if (opt_filter) { | |
9c48cab3 JI |
1476 | char *exclusion_string; |
1477 | ||
89476427 | 1478 | /* Filter present */ |
91744e14 | 1479 | ev->filter = 1; |
89476427 | 1480 | |
91744e14 | 1481 | command_ret = lttng_enable_event_with_exclusions(handle, ev, channel_name, |
9f449915 PP |
1482 | opt_filter, |
1483 | exclusion_list ? strutils_array_of_strings_len(exclusion_list) : 0, | |
1484 | exclusion_list); | |
1485 | exclusion_string = print_exclusions(exclusion_list); | |
5ef79758 MD |
1486 | if (!exclusion_string) { |
1487 | PERROR("Cannot allocate exclusion_string"); | |
1488 | error = 1; | |
1489 | goto end; | |
1490 | } | |
89476427 JRJ |
1491 | if (command_ret < 0) { |
1492 | switch (-command_ret) { | |
7671f53c | 1493 | case LTTNG_ERR_FILTER_EXIST: |
9c48cab3 | 1494 | WARN("Filter on event %s%s is already enabled" |
7671f53c | 1495 | " (channel %s, session %s)", |
85076754 | 1496 | event_name, |
9c48cab3 | 1497 | exclusion_string, |
85076754 | 1498 | print_channel_name(channel_name), session_name); |
89476427 | 1499 | warn = 1; |
7671f53c | 1500 | break; |
45d5d421 CB |
1501 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1502 | { | |
1503 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
91744e14 | 1504 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev->name, |
45d5d421 CB |
1505 | exclusion_string, |
1506 | msg, | |
1507 | print_channel_name(channel_name), | |
1508 | session_name, opt_filter); | |
1509 | error = 1; | |
1510 | break; | |
1511 | } | |
7671f53c | 1512 | default: |
91744e14 | 1513 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev->name, |
9c48cab3 | 1514 | exclusion_string, |
da3d7d0e JRJ |
1515 | lttng_strerror(command_ret), |
1516 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1517 | ? print_raw_channel_name(channel_name) |
1518 | : print_channel_name(channel_name), | |
1519 | session_name, opt_filter); | |
89476427 | 1520 | error = 1; |
7671f53c CB |
1521 | break; |
1522 | } | |
89476427 JRJ |
1523 | error_holder = command_ret; |
1524 | ||
16363652 | 1525 | } else { |
9c48cab3 JI |
1526 | MSG("Event %s%s: Filter '%s' successfully set", |
1527 | event_name, exclusion_string, | |
1528 | opt_filter); | |
53a80697 | 1529 | } |
9c48cab3 | 1530 | free(exclusion_string); |
53a80697 | 1531 | } |
6181537c | 1532 | |
89476427 JRJ |
1533 | if (lttng_opt_mi) { |
1534 | if (command_ret) { | |
1535 | success = 0; | |
91744e14 | 1536 | ev->enabled = 0; |
89476427 | 1537 | } else { |
91744e14 | 1538 | ev->enabled = 1; |
89476427 JRJ |
1539 | } |
1540 | ||
91744e14 | 1541 | ret = mi_lttng_event(writer, ev, 1, handle->domain.type); |
89476427 JRJ |
1542 | if (ret) { |
1543 | ret = CMD_ERROR; | |
1544 | goto error; | |
1545 | } | |
1546 | ||
1547 | /* print exclusion */ | |
9f449915 | 1548 | ret = mi_print_exclusion(exclusion_list); |
89476427 JRJ |
1549 | if (ret) { |
1550 | ret = CMD_ERROR; | |
1551 | goto error; | |
1552 | } | |
1553 | ||
1554 | /* Success ? */ | |
1555 | ret = mi_lttng_writer_write_element_bool(writer, | |
1556 | mi_lttng_element_command_success, success); | |
1557 | if (ret) { | |
1558 | ret = CMD_ERROR; | |
1559 | goto end; | |
1560 | } | |
1561 | ||
1562 | /* Close event element */ | |
1563 | ret = mi_lttng_writer_close_element(writer); | |
1564 | if (ret) { | |
1565 | ret = CMD_ERROR; | |
1566 | goto end; | |
1567 | } | |
1568 | } | |
1569 | ||
f3ed775e DG |
1570 | /* Next event */ |
1571 | event_name = strtok(NULL, ","); | |
89476427 JRJ |
1572 | /* Reset warn, error and success */ |
1573 | success = 1; | |
f3ed775e DG |
1574 | } |
1575 | ||
8c9ae521 | 1576 | end: |
89476427 JRJ |
1577 | /* Close Mi */ |
1578 | if (lttng_opt_mi) { | |
1579 | /* Close events element */ | |
1580 | ret = mi_lttng_writer_close_element(writer); | |
1581 | if (ret) { | |
1582 | ret = CMD_ERROR; | |
1583 | goto error; | |
1584 | } | |
1585 | } | |
f3ed775e | 1586 | error: |
ae856491 DG |
1587 | if (warn) { |
1588 | ret = CMD_WARNING; | |
1589 | } | |
89476427 JRJ |
1590 | if (error) { |
1591 | ret = CMD_ERROR; | |
1592 | } | |
cd80958d | 1593 | lttng_destroy_handle(handle); |
9f449915 | 1594 | strutils_free_null_terminated_array_of_strings(exclusion_list); |
7ed70bc9 | 1595 | |
89476427 JRJ |
1596 | /* Overwrite ret with error_holder if there was an actual error with |
1597 | * enabling an event. | |
1598 | */ | |
1599 | ret = error_holder ? error_holder : ret; | |
1600 | ||
91744e14 | 1601 | lttng_event_destroy(ev); |
f3ed775e DG |
1602 | return ret; |
1603 | } | |
1604 | ||
1605 | /* | |
6181537c | 1606 | * Add event to trace session |
f3ed775e DG |
1607 | */ |
1608 | int cmd_enable_events(int argc, const char **argv) | |
1609 | { | |
89476427 | 1610 | int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1; |
f3ed775e | 1611 | static poptContext pc; |
cd80958d | 1612 | char *session_name = NULL; |
68c7f6e5 | 1613 | const char *leftover = NULL; |
de044b7a | 1614 | int event_type = -1; |
f3ed775e DG |
1615 | |
1616 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1617 | poptReadDefaultConfig(pc, 0); | |
1618 | ||
1619 | /* Default event type */ | |
7a3d1328 | 1620 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
1621 | |
1622 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1623 | switch (opt) { | |
1624 | case OPT_HELP: | |
4ba92f18 | 1625 | SHOW_HELP(); |
f3ed775e | 1626 | goto end; |
f3ed775e | 1627 | case OPT_TRACEPOINT: |
e6ddca71 | 1628 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 1629 | break; |
cf0e5467 | 1630 | case OPT_PROBE: |
7d29a247 | 1631 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e | 1632 | break; |
dcabc190 FD |
1633 | case OPT_USERSPACE_PROBE: |
1634 | opt_event_type = LTTNG_EVENT_USERSPACE_PROBE; | |
1635 | break; | |
f3ed775e DG |
1636 | case OPT_FUNCTION: |
1637 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b | 1638 | break; |
a54bd42d MD |
1639 | case OPT_SYSCALL: |
1640 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 1641 | break; |
eeac7d46 MD |
1642 | case OPT_USERSPACE: |
1643 | opt_userspace = 1; | |
eeac7d46 | 1644 | break; |
0cda4f28 | 1645 | case OPT_LOGLEVEL: |
8005f29a | 1646 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE; |
0cda4f28 MD |
1647 | opt_loglevel = poptGetOptArg(pc); |
1648 | break; | |
1649 | case OPT_LOGLEVEL_ONLY: | |
8005f29a | 1650 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE; |
0cda4f28 | 1651 | opt_loglevel = poptGetOptArg(pc); |
13dce3b7 | 1652 | break; |
679b4943 SM |
1653 | case OPT_LIST_OPTIONS: |
1654 | list_cmd_options(stdout, long_options); | |
679b4943 | 1655 | goto end; |
53a80697 MD |
1656 | case OPT_FILTER: |
1657 | break; | |
fac3366c JI |
1658 | case OPT_EXCLUDE: |
1659 | break; | |
f3ed775e | 1660 | default: |
f3ed775e DG |
1661 | ret = CMD_UNDEFINED; |
1662 | goto end; | |
1663 | } | |
de044b7a DG |
1664 | |
1665 | /* Validate event type. Multiple event type are not supported. */ | |
1666 | if (event_type == -1) { | |
1667 | event_type = opt_event_type; | |
1668 | } else { | |
1669 | if (event_type != opt_event_type) { | |
1670 | ERR("Multiple event type not supported."); | |
1671 | ret = CMD_ERROR; | |
1672 | goto end; | |
1673 | } | |
1674 | } | |
f3ed775e DG |
1675 | } |
1676 | ||
3ecec76a PP |
1677 | ret = print_missing_or_multiple_domains( |
1678 | opt_kernel + opt_userspace + opt_jul + opt_log4j + opt_python); | |
1679 | if (ret) { | |
1680 | ret = CMD_ERROR; | |
1681 | goto end; | |
1682 | } | |
1683 | ||
89476427 JRJ |
1684 | /* Mi check */ |
1685 | if (lttng_opt_mi) { | |
1686 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1687 | if (!writer) { | |
1688 | ret = -LTTNG_ERR_NOMEM; | |
1689 | goto end; | |
1690 | } | |
1691 | ||
1692 | /* Open command element */ | |
1693 | ret = mi_lttng_writer_command_open(writer, | |
1694 | mi_lttng_element_command_enable_event); | |
1695 | if (ret) { | |
1696 | ret = CMD_ERROR; | |
1697 | goto end; | |
1698 | } | |
1699 | ||
1700 | /* Open output element */ | |
1701 | ret = mi_lttng_writer_open_element(writer, | |
1702 | mi_lttng_element_command_output); | |
1703 | if (ret) { | |
1704 | ret = CMD_ERROR; | |
1705 | goto end; | |
1706 | } | |
1707 | } | |
1708 | ||
f3ed775e DG |
1709 | opt_event_list = (char*) poptGetArg(pc); |
1710 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
1711 | ERR("Missing event name(s).\n"); | |
ca1c3607 | 1712 | ret = CMD_ERROR; |
f3ed775e DG |
1713 | goto end; |
1714 | } | |
1715 | ||
68c7f6e5 JD |
1716 | leftover = poptGetArg(pc); |
1717 | if (leftover) { | |
1718 | ERR("Unknown argument: %s", leftover); | |
1719 | ret = CMD_ERROR; | |
1720 | goto end; | |
1721 | } | |
1722 | ||
cd80958d DG |
1723 | if (!opt_session_name) { |
1724 | session_name = get_session_name(); | |
1725 | if (session_name == NULL) { | |
89476427 JRJ |
1726 | command_ret = CMD_ERROR; |
1727 | success = 0; | |
1728 | goto mi_closing; | |
cd80958d DG |
1729 | } |
1730 | } else { | |
1731 | session_name = opt_session_name; | |
1732 | } | |
1733 | ||
89476427 JRJ |
1734 | command_ret = enable_events(session_name); |
1735 | if (command_ret) { | |
1736 | success = 0; | |
1737 | goto mi_closing; | |
1738 | } | |
1739 | ||
1740 | mi_closing: | |
1741 | /* Mi closing */ | |
1742 | if (lttng_opt_mi) { | |
1743 | /* Close output element */ | |
1744 | ret = mi_lttng_writer_close_element(writer); | |
1745 | if (ret) { | |
1746 | ret = CMD_ERROR; | |
1747 | goto end; | |
1748 | } | |
1749 | ||
1750 | ret = mi_lttng_writer_write_element_bool(writer, | |
1751 | mi_lttng_element_command_success, success); | |
1752 | if (ret) { | |
1753 | ret = CMD_ERROR; | |
1754 | goto end; | |
1755 | } | |
1756 | ||
1757 | /* Command element close */ | |
1758 | ret = mi_lttng_writer_command_close(writer); | |
1759 | if (ret) { | |
1760 | ret = CMD_ERROR; | |
1761 | goto end; | |
1762 | } | |
1763 | } | |
f3ed775e DG |
1764 | |
1765 | end: | |
89476427 JRJ |
1766 | /* Mi clean-up */ |
1767 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1768 | /* Preserve original error code */ | |
1769 | ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL; | |
1770 | } | |
1771 | ||
cd80958d DG |
1772 | if (opt_session_name == NULL) { |
1773 | free(session_name); | |
1774 | } | |
1775 | ||
89476427 JRJ |
1776 | /* Overwrite ret if an error occurred in enable_events */ |
1777 | ret = command_ret ? command_ret : ret; | |
1778 | ||
ca1c3607 | 1779 | poptFreeContext(pc); |
f3ed775e DG |
1780 | return ret; |
1781 | } | |
9f449915 | 1782 |