Commit | Line | Data |
---|---|---|
f3ed775e | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca> |
f3ed775e | 3 | * |
ab5be9fa | 4 | * SPDX-License-Identifier: GPL-2.0-only |
f3ed775e | 5 | * |
f3ed775e DG |
6 | */ |
7 | ||
6c1c0768 | 8 | #define _LGPL_SOURCE |
b2064f54 | 9 | #include <assert.h> |
f3ed775e DG |
10 | #include <popt.h> |
11 | #include <stdio.h> | |
12 | #include <stdlib.h> | |
f3ed775e DG |
13 | #include <sys/stat.h> |
14 | #include <sys/types.h> | |
15 | #include <unistd.h> | |
5a0de755 | 16 | #include <inttypes.h> |
8f0d098b | 17 | #include <ctype.h> |
f3ed775e | 18 | |
343af227 | 19 | #include <common/sessiond-comm/sessiond-comm.h> |
f5436bfc | 20 | #include <common/compat/string.h> |
dbc478f3 | 21 | #include <common/compat/getenv.h> |
9f449915 | 22 | #include <common/string-utils/string-utils.h> |
dbc478f3 | 23 | #include <common/utils.h> |
f3ed775e | 24 | |
89476427 JRJ |
25 | /* Mi dependancy */ |
26 | #include <common/mi-lttng.h> | |
27 | ||
1ceda6f1 | 28 | #include <lttng/domain-internal.h> |
7e8f2e9c JG |
29 | #include <lttng/event-internal.h> |
30 | ||
89476427 | 31 | #include "../command.h" |
7e8f2e9c | 32 | #include "../loglevel.h" |
0c4e727b | 33 | #include "../uprobe.h" |
89476427 | 34 | |
8ab7c0d9 MD |
35 | #if (LTTNG_SYMBOL_NAME_LEN == 256) |
36 | #define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255" | |
37 | #endif | |
38 | ||
f3ed775e DG |
39 | static char *opt_event_list; |
40 | static int opt_event_type; | |
0cda4f28 MD |
41 | static const char *opt_loglevel; |
42 | static int opt_loglevel_type; | |
6181537c | 43 | static int opt_kernel; |
5440dc42 | 44 | static char *opt_session_name; |
f3ed775e | 45 | static int opt_userspace; |
b9dfb167 | 46 | static int opt_jul; |
5cdb6027 | 47 | static int opt_log4j; |
0e115563 | 48 | static int opt_python; |
f3ed775e | 49 | static int opt_enable_all; |
cf0e5467 | 50 | static char *opt_probe; |
dcabc190 | 51 | static char *opt_userspace_probe; |
8f0d098b | 52 | static char *opt_function; |
f3ed775e | 53 | static char *opt_channel_name; |
53a80697 | 54 | static char *opt_filter; |
fac3366c | 55 | static char *opt_exclude; |
f3ed775e | 56 | |
4fc83d94 PP |
57 | #ifdef LTTNG_EMBED_HELP |
58 | static const char help_msg[] = | |
59 | #include <lttng-enable-event.1.h> | |
60 | ; | |
61 | #endif | |
62 | ||
f3ed775e DG |
63 | enum { |
64 | OPT_HELP = 1, | |
f3ed775e | 65 | OPT_TRACEPOINT, |
cf0e5467 | 66 | OPT_PROBE, |
dcabc190 | 67 | OPT_USERSPACE_PROBE, |
f3ed775e | 68 | OPT_FUNCTION, |
a54bd42d | 69 | OPT_SYSCALL, |
eeac7d46 | 70 | OPT_USERSPACE, |
0cda4f28 MD |
71 | OPT_LOGLEVEL, |
72 | OPT_LOGLEVEL_ONLY, | |
679b4943 | 73 | OPT_LIST_OPTIONS, |
53a80697 | 74 | OPT_FILTER, |
fac3366c | 75 | OPT_EXCLUDE, |
f3ed775e DG |
76 | }; |
77 | ||
cd80958d | 78 | static struct lttng_handle *handle; |
89476427 | 79 | static struct mi_writer *writer; |
cd80958d | 80 | |
f3ed775e DG |
81 | static struct poptOption long_options[] = { |
82 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
83 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 84 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e14f64a8 | 85 | {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0}, |
f3ed775e DG |
86 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
87 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, | |
d78d6610 | 88 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, |
b9dfb167 | 89 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
5cdb6027 | 90 | {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, |
0e115563 | 91 | {"python", 'p', POPT_ARG_VAL, &opt_python, 1, 0, 0}, |
f3ed775e | 92 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0}, |
7ebae521 | 93 | {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0}, |
dcabc190 | 94 | {"userspace-probe",0, POPT_ARG_STRING, &opt_userspace_probe, OPT_USERSPACE_PROBE, 0, 0}, |
40e9d5d3 | 95 | {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0}, |
7ebae521 | 96 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0}, |
0cda4f28 MD |
97 | {"loglevel", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL, 0, 0}, |
98 | {"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0}, | |
679b4943 | 99 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
53a80697 | 100 | {"filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0}, |
fac3366c | 101 | {"exclude", 'x', POPT_ARG_STRING, &opt_exclude, OPT_EXCLUDE, 0, 0}, |
f3ed775e DG |
102 | {0, 0, 0, 0, 0, 0, 0} |
103 | }; | |
104 | ||
0d63dd19 | 105 | /* |
6181537c | 106 | * Parse probe options. |
0d63dd19 | 107 | */ |
cf0e5467 | 108 | static int parse_probe_opts(struct lttng_event *ev, char *opt) |
0d63dd19 | 109 | { |
49d4e302 JRJ |
110 | int ret = CMD_SUCCESS; |
111 | int match; | |
8ff0bbd0 | 112 | char s_hex[19]; |
8ab7c0d9 | 113 | #define S_HEX_LEN_SCANF_IS_A_BROKEN_API "18" /* 18 is (19 - 1) (\0 is extra) */ |
0d63dd19 DG |
114 | char name[LTTNG_SYMBOL_NAME_LEN]; |
115 | ||
116 | if (opt == NULL) { | |
49d4e302 | 117 | ret = CMD_ERROR; |
8f0d098b | 118 | goto end; |
0d63dd19 DG |
119 | } |
120 | ||
121 | /* Check for symbol+offset */ | |
49d4e302 | 122 | match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API |
8ab7c0d9 | 123 | "[^'+']+%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", name, s_hex); |
49d4e302 | 124 | if (match == 2) { |
7d29a247 | 125 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 126 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
cf0e5467 | 127 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
9d035200 | 128 | if (*s_hex == '\0') { |
8ff0bbd0 | 129 | ERR("Invalid probe offset %s", s_hex); |
49d4e302 | 130 | ret = CMD_ERROR; |
8f0d098b | 131 | goto end; |
0d63dd19 | 132 | } |
8ff0bbd0 | 133 | ev->attr.probe.offset = strtoul(s_hex, NULL, 0); |
cf0e5467 | 134 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); |
3000dc78 | 135 | ev->attr.probe.addr = 0; |
8f0d098b MD |
136 | goto end; |
137 | } | |
138 | ||
139 | /* Check for symbol */ | |
88c91427 | 140 | if (isalpha(name[0]) || name[0] == '_') { |
49d4e302 | 141 | match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s", |
8ab7c0d9 | 142 | name); |
49d4e302 | 143 | if (match == 1) { |
8f0d098b | 144 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 145 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
8f0d098b MD |
146 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
147 | ev->attr.probe.offset = 0; | |
148 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); | |
149 | ev->attr.probe.addr = 0; | |
150 | goto end; | |
151 | } | |
0d63dd19 DG |
152 | } |
153 | ||
154 | /* Check for address */ | |
49d4e302 JRJ |
155 | match = sscanf(opt, "%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", s_hex); |
156 | if (match > 0) { | |
531be721 FD |
157 | /* |
158 | * Return an error if the first character of the tentative | |
159 | * address is NULL or not a digit. It can be "0" if the address | |
160 | * is in hexadecimal and can be 1 to 9 if it's in decimal. | |
161 | */ | |
162 | if (*s_hex == '\0' || !isdigit(*s_hex)) { | |
163 | ERR("Invalid probe description %s", s_hex); | |
49d4e302 | 164 | ret = CMD_ERROR; |
8f0d098b | 165 | goto end; |
0d63dd19 | 166 | } |
8ff0bbd0 | 167 | ev->attr.probe.addr = strtoul(s_hex, NULL, 0); |
cf0e5467 | 168 | DBG("probe addr %" PRIu64, ev->attr.probe.addr); |
3000dc78 DG |
169 | ev->attr.probe.offset = 0; |
170 | memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN); | |
8f0d098b | 171 | goto end; |
0d63dd19 DG |
172 | } |
173 | ||
174 | /* No match */ | |
49d4e302 | 175 | ret = CMD_ERROR; |
0d63dd19 | 176 | |
8f0d098b | 177 | end: |
0d63dd19 DG |
178 | return ret; |
179 | } | |
180 | ||
85076754 MD |
181 | static |
182 | const char *print_channel_name(const char *name) | |
183 | { | |
184 | return name ? : DEFAULT_CHANNEL_NAME; | |
185 | } | |
186 | ||
187 | static | |
188 | const char *print_raw_channel_name(const char *name) | |
189 | { | |
190 | return name ? : "<default>"; | |
191 | } | |
192 | ||
89476427 JRJ |
193 | /* |
194 | * Mi print exlcusion list | |
195 | */ | |
196 | static | |
f78de773 | 197 | int mi_print_exclusion(const struct lttng_dynamic_pointer_array *exclusions) |
89476427 | 198 | { |
f78de773 JG |
199 | int ret; |
200 | size_t i; | |
201 | const size_t count = lttng_dynamic_pointer_array_get_count(exclusions); | |
89476427 JRJ |
202 | |
203 | assert(writer); | |
204 | ||
205 | if (count == 0) { | |
206 | ret = 0; | |
207 | goto end; | |
208 | } | |
f78de773 | 209 | |
89476427 JRJ |
210 | ret = mi_lttng_writer_open_element(writer, config_element_exclusions); |
211 | if (ret) { | |
212 | goto end; | |
213 | } | |
214 | ||
215 | for (i = 0; i < count; i++) { | |
f78de773 JG |
216 | const char *exclusion = lttng_dynamic_pointer_array_get_pointer( |
217 | exclusions, i); | |
218 | ||
89476427 | 219 | ret = mi_lttng_writer_write_element_string(writer, |
f78de773 | 220 | config_element_exclusion, exclusion); |
89476427 JRJ |
221 | if (ret) { |
222 | goto end; | |
223 | } | |
224 | } | |
225 | ||
226 | /* Close exclusions element */ | |
227 | ret = mi_lttng_writer_close_element(writer); | |
228 | ||
229 | end: | |
230 | return ret; | |
231 | } | |
232 | ||
9c48cab3 JI |
233 | /* |
234 | * Return allocated string for pretty-printing exclusion names. | |
235 | */ | |
236 | static | |
f78de773 | 237 | char *print_exclusions(const struct lttng_dynamic_pointer_array *exclusions) |
9c48cab3 JI |
238 | { |
239 | int length = 0; | |
f78de773 | 240 | size_t i; |
bfe36393 | 241 | const char preamble[] = " excluding "; |
9c48cab3 | 242 | char *ret; |
f78de773 | 243 | const size_t count = lttng_dynamic_pointer_array_get_count(exclusions); |
9c48cab3 JI |
244 | |
245 | if (count == 0) { | |
246 | return strdup(""); | |
247 | } | |
248 | ||
f78de773 | 249 | /* Calculate total required length. */ |
9c48cab3 | 250 | for (i = 0; i < count; i++) { |
f78de773 JG |
251 | const char *exclusion = lttng_dynamic_pointer_array_get_pointer( |
252 | exclusions, i); | |
253 | ||
254 | length += strlen(exclusion) + 4; | |
9c48cab3 JI |
255 | } |
256 | ||
bfe36393 JG |
257 | length += sizeof(preamble); |
258 | ret = zmalloc(length); | |
fd591b18 MD |
259 | if (!ret) { |
260 | return NULL; | |
261 | } | |
f78de773 | 262 | |
9c48cab3 JI |
263 | strncpy(ret, preamble, length); |
264 | for (i = 0; i < count; i++) { | |
f78de773 JG |
265 | const char *exclusion = lttng_dynamic_pointer_array_get_pointer( |
266 | exclusions, i); | |
267 | ||
9f449915 | 268 | strcat(ret, "\""); |
f78de773 | 269 | strcat(ret, exclusion); |
9f449915 | 270 | strcat(ret, "\""); |
9c48cab3 | 271 | if (i != count - 1) { |
9f449915 | 272 | strcat(ret, ", "); |
9c48cab3 JI |
273 | } |
274 | } | |
89476427 | 275 | |
9c48cab3 JI |
276 | return ret; |
277 | } | |
278 | ||
748bde76 | 279 | static |
9f449915 | 280 | int check_exclusion_subsets(const char *event_name, const char *exclusion) |
748bde76 | 281 | { |
9f449915 PP |
282 | bool warn = false; |
283 | int ret = 0; | |
284 | const char *e = event_name; | |
285 | const char *x = exclusion; | |
286 | ||
287 | /* Scan both the excluder and the event letter by letter */ | |
288 | while (true) { | |
289 | if (*e == '\\') { | |
290 | if (*x != *e) { | |
291 | warn = true; | |
292 | goto end; | |
293 | } | |
748bde76 | 294 | |
9f449915 PP |
295 | e++; |
296 | x++; | |
297 | goto cmp_chars; | |
298 | } | |
299 | ||
300 | if (*x == '*') { | |
301 | /* Event is a subset of the excluder */ | |
302 | ERR("Event %s: %s excludes all events from %s", | |
303 | event_name, exclusion, event_name); | |
304 | goto error; | |
305 | } | |
306 | ||
307 | if (*e == '*') { | |
308 | /* | |
309 | * Reached the end of the event name before the | |
310 | * end of the exclusion: this is valid. | |
311 | */ | |
312 | goto end; | |
313 | } | |
314 | ||
315 | cmp_chars: | |
316 | if (*x != *e) { | |
317 | warn = true; | |
318 | break; | |
319 | } | |
320 | ||
321 | x++; | |
322 | e++; | |
748bde76 JI |
323 | } |
324 | ||
9f449915 | 325 | goto end; |
748bde76 | 326 | |
9f449915 PP |
327 | error: |
328 | ret = -1; | |
748bde76 | 329 | |
9f449915 PP |
330 | end: |
331 | if (warn) { | |
332 | WARN("Event %s: %s does not exclude any events from %s", | |
333 | event_name, exclusion, event_name); | |
334 | } | |
748bde76 | 335 | |
9f449915 PP |
336 | return ret; |
337 | } | |
338 | ||
f78de773 JG |
339 | int validate_exclusion_list(const char *event_name, |
340 | const struct lttng_dynamic_pointer_array *exclusions) | |
9f449915 | 341 | { |
b03a81fb | 342 | int ret; |
9f449915 PP |
343 | |
344 | /* Event name must be a valid globbing pattern to allow exclusions. */ | |
345 | if (!strutils_is_star_glob_pattern(event_name)) { | |
346 | ERR("Event %s: Exclusions can only be used with a globbing pattern", | |
347 | event_name); | |
348 | goto error; | |
349 | } | |
350 | ||
9f449915 PP |
351 | /* |
352 | * If the event name is a star-at-end only globbing pattern, | |
353 | * then we can validate the individual exclusions. Otherwise | |
354 | * all exclusions are passed to the session daemon. | |
355 | */ | |
356 | if (strutils_is_star_at_the_end_only_glob_pattern(event_name)) { | |
f78de773 JG |
357 | size_t i, num_exclusions; |
358 | ||
359 | num_exclusions = lttng_dynamic_pointer_array_get_count(exclusions); | |
360 | ||
361 | for (i = 0; i < num_exclusions; i++) { | |
362 | const char *exclusion = | |
363 | lttng_dynamic_pointer_array_get_pointer( | |
364 | exclusions, i); | |
9f449915 | 365 | |
f78de773 JG |
366 | if (!strutils_is_star_glob_pattern(exclusion) || |
367 | strutils_is_star_at_the_end_only_glob_pattern(exclusion)) { | |
368 | ret = check_exclusion_subsets(event_name, exclusion); | |
9f449915 | 369 | if (ret) { |
5ef79758 MD |
370 | goto error; |
371 | } | |
748bde76 | 372 | } |
748bde76 JI |
373 | } |
374 | } | |
9f449915 | 375 | |
b03a81fb SM |
376 | ret = 0; |
377 | goto end; | |
378 | ||
379 | error: | |
380 | ret = -1; | |
381 | ||
382 | end: | |
383 | return ret; | |
384 | } | |
385 | ||
386 | static int create_exclusion_list_and_validate(const char *event_name, | |
387 | const char *exclusions_arg, | |
f78de773 | 388 | struct lttng_dynamic_pointer_array *exclusions) |
b03a81fb SM |
389 | { |
390 | int ret = 0; | |
b03a81fb SM |
391 | |
392 | /* Split exclusions. */ | |
f78de773 JG |
393 | ret = strutils_split(exclusions_arg, ',', true, exclusions); |
394 | if (ret < 0) { | |
b03a81fb SM |
395 | goto error; |
396 | } | |
397 | ||
f78de773 | 398 | if (validate_exclusion_list(event_name, exclusions) != |
b03a81fb SM |
399 | 0) { |
400 | goto error; | |
401 | } | |
402 | ||
748bde76 | 403 | goto end; |
9f449915 | 404 | |
748bde76 | 405 | error: |
9f449915 | 406 | ret = -1; |
f78de773 | 407 | lttng_dynamic_pointer_array_reset(exclusions); |
9f449915 | 408 | |
748bde76 | 409 | end: |
748bde76 JI |
410 | return ret; |
411 | } | |
502bbe89 | 412 | |
f78de773 | 413 | static void warn_on_truncated_exclusion_names(const struct lttng_dynamic_pointer_array *exclusions, |
9f449915 | 414 | int *warn) |
502bbe89 | 415 | { |
f78de773 JG |
416 | size_t i; |
417 | const size_t num_exclusions = lttng_dynamic_pointer_array_get_count(exclusions); | |
418 | ||
419 | for (i = 0; i < num_exclusions; i++) { | |
420 | const char * const exclusion = lttng_dynamic_pointer_array_get_pointer(exclusions, i); | |
502bbe89 | 421 | |
f78de773 | 422 | if (strlen(exclusion) >= LTTNG_SYMBOL_NAME_LEN) { |
502bbe89 | 423 | WARN("Event exclusion \"%s\" will be truncated", |
f78de773 | 424 | exclusion); |
502bbe89 PP |
425 | *warn = 1; |
426 | } | |
427 | } | |
428 | } | |
429 | ||
f3ed775e | 430 | /* |
6181537c | 431 | * Enabling event using the lttng API. |
89476427 | 432 | * Note: in case of error only the last error code will be return. |
f3ed775e | 433 | */ |
cd80958d | 434 | static int enable_events(char *session_name) |
f3ed775e | 435 | { |
89476427 JRJ |
436 | int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS; |
437 | int error_holder = CMD_SUCCESS, warn = 0, error = 0, success = 1; | |
b73d0b29 | 438 | char *event_name, *channel_name = NULL; |
91744e14 | 439 | struct lttng_event *ev; |
f78de773 JG |
440 | struct lttng_domain dom = {}; |
441 | struct lttng_dynamic_pointer_array exclusions; | |
0c4e727b | 442 | struct lttng_userspace_probe_location *uprobe_loc = NULL; |
f3ed775e | 443 | |
f78de773 | 444 | lttng_dynamic_pointer_array_init(&exclusions, NULL); |
441c16a7 | 445 | |
91744e14 FD |
446 | ev = lttng_event_create(); |
447 | if (!ev) { | |
448 | ret = CMD_ERROR; | |
449 | goto error; | |
450 | } | |
451 | ||
53a80697 | 452 | if (opt_kernel) { |
67b58630 JG |
453 | if (opt_loglevel) { |
454 | WARN("Kernel loglevels are not supported."); | |
455 | } | |
53a80697 MD |
456 | } |
457 | ||
7d29a247 DG |
458 | /* Create lttng domain */ |
459 | if (opt_kernel) { | |
460 | dom.type = LTTNG_DOMAIN_KERNEL; | |
7972aab2 | 461 | dom.buf_type = LTTNG_BUFFER_GLOBAL; |
d78d6610 | 462 | } else if (opt_userspace) { |
2bdd86d4 | 463 | dom.type = LTTNG_DOMAIN_UST; |
7972aab2 | 464 | /* Default. */ |
8692d4e5 | 465 | dom.buf_type = LTTNG_BUFFER_PER_UID; |
b9dfb167 DG |
466 | } else if (opt_jul) { |
467 | dom.type = LTTNG_DOMAIN_JUL; | |
468 | /* Default. */ | |
469 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
5cdb6027 DG |
470 | } else if (opt_log4j) { |
471 | dom.type = LTTNG_DOMAIN_LOG4J; | |
472 | /* Default. */ | |
473 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
0e115563 DG |
474 | } else if (opt_python) { |
475 | dom.type = LTTNG_DOMAIN_PYTHON; | |
476 | /* Default. */ | |
477 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
6181537c | 478 | } else { |
3ecec76a PP |
479 | /* Checked by the caller. */ |
480 | assert(0); | |
2bdd86d4 | 481 | } |
7d29a247 | 482 | |
8b08c525 AB |
483 | if (opt_exclude) { |
484 | switch (dom.type) { | |
485 | case LTTNG_DOMAIN_KERNEL: | |
486 | case LTTNG_DOMAIN_JUL: | |
487 | case LTTNG_DOMAIN_LOG4J: | |
488 | case LTTNG_DOMAIN_PYTHON: | |
489 | ERR("Event name exclusions are not yet implemented for %s events", | |
1ceda6f1 | 490 | lttng_domain_type_str(dom.type)); |
8b08c525 AB |
491 | ret = CMD_ERROR; |
492 | goto error; | |
493 | case LTTNG_DOMAIN_UST: | |
494 | /* Exclusions supported */ | |
495 | break; | |
496 | default: | |
497 | assert(0); | |
498 | } | |
d5dd17fd JI |
499 | } |
500 | ||
4fd2697f FD |
501 | /* |
502 | * Adding a filter to a probe, function or userspace-probe would be | |
503 | * denied by the kernel tracer as it's not supported at the moment. We | |
504 | * do an early check here to warn the user. | |
505 | */ | |
506 | if (opt_filter && opt_kernel) { | |
507 | switch (opt_event_type) { | |
508 | case LTTNG_EVENT_ALL: | |
509 | case LTTNG_EVENT_TRACEPOINT: | |
510 | case LTTNG_EVENT_SYSCALL: | |
511 | break; | |
512 | case LTTNG_EVENT_PROBE: | |
513 | case LTTNG_EVENT_USERSPACE_PROBE: | |
514 | case LTTNG_EVENT_FUNCTION: | |
515 | ERR("Filter expressions are not supported for %s events", | |
516 | get_event_type_str(opt_event_type)); | |
517 | ret = CMD_ERROR; | |
518 | goto error; | |
519 | default: | |
520 | ret = CMD_UNDEFINED; | |
521 | goto error; | |
522 | } | |
523 | } | |
524 | ||
85076754 | 525 | channel_name = opt_channel_name; |
ae856491 | 526 | |
cd80958d DG |
527 | handle = lttng_create_handle(session_name, &dom); |
528 | if (handle == NULL) { | |
529 | ret = -1; | |
530 | goto error; | |
531 | } | |
1aef21b6 | 532 | |
89476427 JRJ |
533 | /* Prepare Mi */ |
534 | if (lttng_opt_mi) { | |
535 | /* Open a events element */ | |
536 | ret = mi_lttng_writer_open_element(writer, config_element_events); | |
537 | if (ret) { | |
538 | ret = CMD_ERROR; | |
539 | goto error; | |
540 | } | |
541 | } | |
542 | ||
cd80958d | 543 | if (opt_enable_all) { |
8c9ae521 | 544 | /* Default setup for enable all */ |
75e8c5ab | 545 | if (opt_kernel) { |
91744e14 FD |
546 | ev->type = opt_event_type; |
547 | strcpy(ev->name, "*"); | |
300b8fd5 | 548 | /* kernel loglevels not implemented */ |
91744e14 | 549 | ev->loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
75e8c5ab | 550 | } else { |
91744e14 FD |
551 | ev->type = LTTNG_EVENT_TRACEPOINT; |
552 | strcpy(ev->name, "*"); | |
553 | ev->loglevel_type = opt_loglevel_type; | |
300b8fd5 | 554 | if (opt_loglevel) { |
7e8f2e9c JG |
555 | int name_search_ret; |
556 | ||
0e115563 | 557 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
7e8f2e9c | 558 | |
b2064f54 | 559 | if (opt_userspace) { |
7e8f2e9c JG |
560 | enum lttng_loglevel loglevel; |
561 | ||
562 | name_search_ret = loglevel_name_to_value(opt_loglevel, &loglevel); | |
563 | ev->loglevel = (int) loglevel; | |
b2064f54 | 564 | } else if (opt_jul) { |
7e8f2e9c JG |
565 | enum lttng_loglevel_jul loglevel; |
566 | ||
567 | name_search_ret = loglevel_jul_name_to_value(opt_loglevel, &loglevel); | |
568 | ev->loglevel = (int) loglevel; | |
5cdb6027 | 569 | } else if (opt_log4j) { |
7e8f2e9c JG |
570 | enum lttng_loglevel_log4j loglevel; |
571 | ||
572 | name_search_ret = loglevel_log4j_name_to_value(opt_loglevel, &loglevel); | |
573 | ev->loglevel = (int) loglevel; | |
7fefa907 JG |
574 | } else { |
575 | /* python domain. */ | |
7e8f2e9c JG |
576 | enum lttng_loglevel_python loglevel; |
577 | ||
578 | name_search_ret = loglevel_python_name_to_value(opt_loglevel, &loglevel); | |
579 | ev->loglevel = (int) loglevel; | |
b2064f54 | 580 | } |
7e8f2e9c JG |
581 | |
582 | if (name_search_ret == -1) { | |
300b8fd5 | 583 | ERR("Unknown loglevel %s", opt_loglevel); |
2f70b271 | 584 | ret = -LTTNG_ERR_INVALID; |
300b8fd5 MD |
585 | goto error; |
586 | } | |
22e25b71 | 587 | } else { |
0e115563 | 588 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 | 589 | if (opt_userspace) { |
91744e14 | 590 | ev->loglevel = -1; |
34aa3685 | 591 | } else if (opt_jul) { |
91744e14 | 592 | ev->loglevel = LTTNG_LOGLEVEL_JUL_ALL; |
34aa3685 | 593 | } else if (opt_log4j) { |
91744e14 | 594 | ev->loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; |
0e115563 | 595 | } else if (opt_python) { |
91744e14 | 596 | ev->loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; |
b2064f54 | 597 | } |
300b8fd5 | 598 | } |
75e8c5ab | 599 | } |
8c9ae521 | 600 | |
7ed70bc9 | 601 | if (opt_exclude) { |
9f449915 | 602 | ret = create_exclusion_list_and_validate("*", |
f78de773 | 603 | opt_exclude, &exclusions); |
9f449915 PP |
604 | if (ret) { |
605 | ret = CMD_ERROR; | |
7ed70bc9 JI |
606 | goto error; |
607 | } | |
502bbe89 | 608 | |
91744e14 | 609 | ev->exclusion = 1; |
f78de773 | 610 | warn_on_truncated_exclusion_names(&exclusions, |
9f449915 | 611 | &warn); |
7ed70bc9 | 612 | } |
025faf73 | 613 | if (!opt_filter) { |
7ed70bc9 | 614 | ret = lttng_enable_event_with_exclusions(handle, |
91744e14 | 615 | ev, channel_name, |
7ed70bc9 | 616 | NULL, |
f78de773 JG |
617 | lttng_dynamic_pointer_array_get_count(&exclusions), |
618 | (char **) exclusions.array.buffer.data); | |
025faf73 DG |
619 | if (ret < 0) { |
620 | switch (-ret) { | |
621 | case LTTNG_ERR_KERN_EVENT_EXIST: | |
622 | WARN("Kernel events already enabled (channel %s, session %s)", | |
85076754 | 623 | print_channel_name(channel_name), session_name); |
89476427 | 624 | warn = 1; |
025faf73 | 625 | break; |
45d5d421 CB |
626 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
627 | { | |
628 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
629 | ERR("Events: %s (channel %s, session %s)", | |
630 | msg, | |
631 | print_channel_name(channel_name), | |
632 | session_name); | |
633 | error = 1; | |
634 | break; | |
635 | } | |
025faf73 DG |
636 | default: |
637 | ERR("Events: %s (channel %s, session %s)", | |
85076754 MD |
638 | lttng_strerror(ret), |
639 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
640 | ? print_raw_channel_name(channel_name) | |
641 | : print_channel_name(channel_name), | |
642 | session_name); | |
89476427 | 643 | error = 1; |
025faf73 DG |
644 | break; |
645 | } | |
646 | goto end; | |
42224349 | 647 | } |
8c9ae521 | 648 | |
025faf73 DG |
649 | switch (opt_event_type) { |
650 | case LTTNG_EVENT_TRACEPOINT: | |
67b58630 | 651 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
f78de773 | 652 | char *exclusion_string = print_exclusions(&exclusions); |
5ef79758 MD |
653 | |
654 | if (!exclusion_string) { | |
655 | PERROR("Cannot allocate exclusion_string"); | |
656 | error = 1; | |
657 | goto end; | |
658 | } | |
9c48cab3 | 659 | MSG("All %s tracepoints%s are enabled in channel %s for loglevel %s", |
1ceda6f1 | 660 | lttng_domain_type_str(dom.type), |
9c48cab3 | 661 | exclusion_string, |
85076754 | 662 | print_channel_name(channel_name), |
025faf73 | 663 | opt_loglevel); |
9c48cab3 | 664 | free(exclusion_string); |
025faf73 | 665 | } else { |
f78de773 | 666 | char *exclusion_string = print_exclusions(&exclusions); |
5ef79758 MD |
667 | |
668 | if (!exclusion_string) { | |
669 | PERROR("Cannot allocate exclusion_string"); | |
670 | error = 1; | |
671 | goto end; | |
672 | } | |
9c48cab3 | 673 | MSG("All %s tracepoints%s are enabled in channel %s", |
1ceda6f1 | 674 | lttng_domain_type_str(dom.type), |
9c48cab3 | 675 | exclusion_string, |
85076754 | 676 | print_channel_name(channel_name)); |
9c48cab3 | 677 | free(exclusion_string); |
025faf73 DG |
678 | } |
679 | break; | |
680 | case LTTNG_EVENT_SYSCALL: | |
681 | if (opt_kernel) { | |
6e911cad | 682 | MSG("All %s system calls are enabled in channel %s", |
1ceda6f1 | 683 | lttng_domain_type_str(dom.type), |
85076754 | 684 | print_channel_name(channel_name)); |
025faf73 DG |
685 | } |
686 | break; | |
687 | case LTTNG_EVENT_ALL: | |
67b58630 | 688 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
f78de773 | 689 | char *exclusion_string = print_exclusions(&exclusions); |
5ef79758 MD |
690 | |
691 | if (!exclusion_string) { | |
692 | PERROR("Cannot allocate exclusion_string"); | |
693 | error = 1; | |
694 | goto end; | |
695 | } | |
9c48cab3 | 696 | MSG("All %s events%s are enabled in channel %s for loglevel %s", |
1ceda6f1 | 697 | lttng_domain_type_str(dom.type), |
9c48cab3 | 698 | exclusion_string, |
85076754 | 699 | print_channel_name(channel_name), |
025faf73 | 700 | opt_loglevel); |
9c48cab3 | 701 | free(exclusion_string); |
025faf73 | 702 | } else { |
f78de773 | 703 | char *exclusion_string = print_exclusions(&exclusions); |
5ef79758 MD |
704 | |
705 | if (!exclusion_string) { | |
706 | PERROR("Cannot allocate exclusion_string"); | |
707 | error = 1; | |
708 | goto end; | |
709 | } | |
9c48cab3 | 710 | MSG("All %s events%s are enabled in channel %s", |
1ceda6f1 | 711 | lttng_domain_type_str(dom.type), |
9c48cab3 | 712 | exclusion_string, |
85076754 | 713 | print_channel_name(channel_name)); |
9c48cab3 | 714 | free(exclusion_string); |
025faf73 DG |
715 | } |
716 | break; | |
717 | default: | |
718 | /* | |
719 | * We should not be here since lttng_enable_event should have | |
720 | * failed on the event type. | |
721 | */ | |
722 | goto error; | |
57064ada | 723 | } |
f3ed775e | 724 | } |
89476427 | 725 | |
025faf73 | 726 | if (opt_filter) { |
91744e14 | 727 | command_ret = lttng_enable_event_with_exclusions(handle, ev, channel_name, |
f78de773 JG |
728 | opt_filter, |
729 | lttng_dynamic_pointer_array_get_count(&exclusions), | |
730 | (char **) exclusions.array.buffer.data); | |
89476427 JRJ |
731 | if (command_ret < 0) { |
732 | switch (-command_ret) { | |
16363652 | 733 | case LTTNG_ERR_FILTER_EXIST: |
85076754 | 734 | WARN("Filter on all events is already enabled" |
16363652 | 735 | " (channel %s, session %s)", |
85076754 | 736 | print_channel_name(channel_name), session_name); |
89476427 | 737 | warn = 1; |
16363652 | 738 | break; |
45d5d421 CB |
739 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
740 | { | |
741 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
742 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", | |
743 | msg, | |
744 | print_channel_name(channel_name), | |
745 | session_name, opt_filter); | |
746 | error = 1; | |
747 | break; | |
748 | } | |
16363652 | 749 | default: |
85076754 | 750 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", |
da3d7d0e JRJ |
751 | lttng_strerror(command_ret), |
752 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
753 | ? print_raw_channel_name(channel_name) |
754 | : print_channel_name(channel_name), | |
755 | session_name, opt_filter); | |
89476427 | 756 | error = 1; |
16363652 DG |
757 | break; |
758 | } | |
89476427 | 759 | error_holder = command_ret; |
16363652 | 760 | } else { |
91744e14 | 761 | ev->filter = 1; |
16363652 DG |
762 | MSG("Filter '%s' successfully set", opt_filter); |
763 | } | |
764 | } | |
89476427 JRJ |
765 | |
766 | if (lttng_opt_mi) { | |
767 | /* The wildcard * is used for kernel and ust domain to | |
768 | * represent ALL. We copy * in event name to force the wildcard use | |
769 | * for kernel domain | |
770 | * | |
771 | * Note: this is strictly for semantic and printing while in | |
772 | * machine interface mode. | |
773 | */ | |
91744e14 | 774 | strcpy(ev->name, "*"); |
89476427 JRJ |
775 | |
776 | /* If we reach here the events are enabled */ | |
777 | if (!error && !warn) { | |
91744e14 | 778 | ev->enabled = 1; |
89476427 | 779 | } else { |
91744e14 | 780 | ev->enabled = 0; |
89476427 JRJ |
781 | success = 0; |
782 | } | |
91744e14 | 783 | ret = mi_lttng_event(writer, ev, 1, handle->domain.type); |
89476427 JRJ |
784 | if (ret) { |
785 | ret = CMD_ERROR; | |
786 | goto error; | |
787 | } | |
788 | ||
789 | /* print exclusion */ | |
f78de773 | 790 | ret = mi_print_exclusion(&exclusions); |
89476427 JRJ |
791 | if (ret) { |
792 | ret = CMD_ERROR; | |
793 | goto error; | |
794 | } | |
795 | ||
796 | /* Success ? */ | |
797 | ret = mi_lttng_writer_write_element_bool(writer, | |
798 | mi_lttng_element_command_success, success); | |
799 | if (ret) { | |
800 | ret = CMD_ERROR; | |
801 | goto error; | |
802 | } | |
803 | ||
804 | /* Close event element */ | |
805 | ret = mi_lttng_writer_close_element(writer); | |
806 | if (ret) { | |
807 | ret = CMD_ERROR; | |
808 | goto error; | |
809 | } | |
810 | } | |
811 | ||
8c9ae521 | 812 | goto end; |
f3ed775e DG |
813 | } |
814 | ||
815 | /* Strip event list */ | |
816 | event_name = strtok(opt_event_list, ","); | |
817 | while (event_name != NULL) { | |
6181537c | 818 | /* Copy name and type of the event */ |
91744e14 FD |
819 | strncpy(ev->name, event_name, LTTNG_SYMBOL_NAME_LEN); |
820 | ev->name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
821 | ev->type = opt_event_type; | |
6181537c | 822 | |
f3ed775e DG |
823 | /* Kernel tracer action */ |
824 | if (opt_kernel) { | |
825 | DBG("Enabling kernel event %s for channel %s", | |
85076754 MD |
826 | event_name, |
827 | print_channel_name(channel_name)); | |
f3ed775e DG |
828 | |
829 | switch (opt_event_type) { | |
29c62722 MD |
830 | case LTTNG_EVENT_ALL: /* Enable tracepoints and syscalls */ |
831 | /* If event name differs from *, select tracepoint. */ | |
91744e14 FD |
832 | if (strcmp(ev->name, "*")) { |
833 | ev->type = LTTNG_EVENT_TRACEPOINT; | |
29c62722 MD |
834 | } |
835 | break; | |
e6ddca71 | 836 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 837 | break; |
7d29a247 | 838 | case LTTNG_EVENT_PROBE: |
91744e14 | 839 | ret = parse_probe_opts(ev, opt_probe); |
49d4e302 | 840 | if (ret) { |
cf0e5467 | 841 | ERR("Unable to parse probe options"); |
91744e14 | 842 | ret = CMD_ERROR; |
0d63dd19 DG |
843 | goto error; |
844 | } | |
f3ed775e | 845 | break; |
dcabc190 | 846 | case LTTNG_EVENT_USERSPACE_PROBE: |
0c4e727b JR |
847 | assert(ev->type == LTTNG_EVENT_USERSPACE_PROBE); |
848 | ||
849 | ret = parse_userspace_probe_opts(opt_userspace_probe, &uprobe_loc); | |
dcabc190 | 850 | if (ret) { |
36aa2f64 FD |
851 | switch (ret) { |
852 | case CMD_UNSUPPORTED: | |
853 | /* | |
854 | * Error message describing | |
855 | * what is not supported was | |
856 | * printed in the function. | |
857 | */ | |
858 | break; | |
859 | case CMD_ERROR: | |
860 | default: | |
861 | ERR("Unable to parse userspace probe options"); | |
862 | break; | |
863 | } | |
dcabc190 FD |
864 | goto error; |
865 | } | |
0c4e727b JR |
866 | |
867 | ret = lttng_event_set_userspace_probe_location(ev, uprobe_loc); | |
868 | if (ret) { | |
869 | WARN("Failed to set probe location on event"); | |
870 | ret = CMD_ERROR; | |
871 | goto error; | |
872 | } | |
873 | ||
874 | /* Ownership of the uprobe location was transferred to the event. */ | |
875 | uprobe_loc = NULL; | |
dcabc190 | 876 | break; |
f3ed775e | 877 | case LTTNG_EVENT_FUNCTION: |
91744e14 | 878 | ret = parse_probe_opts(ev, opt_function); |
49d4e302 | 879 | if (ret) { |
8f0d098b | 880 | ERR("Unable to parse function probe options"); |
91744e14 | 881 | ret = CMD_ERROR; |
8f0d098b MD |
882 | goto error; |
883 | } | |
884 | break; | |
a54bd42d | 885 | case LTTNG_EVENT_SYSCALL: |
91744e14 | 886 | ev->type = LTTNG_EVENT_SYSCALL; |
c6aa2d41 | 887 | break; |
f3ed775e | 888 | default: |
1ab1ea0b | 889 | ret = CMD_UNDEFINED; |
f3ed775e DG |
890 | goto error; |
891 | } | |
0cda4f28 | 892 | |
0cda4f28 | 893 | /* kernel loglevels not implemented */ |
91744e14 | 894 | ev->loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
f3ed775e | 895 | } else if (opt_userspace) { /* User-space tracer action */ |
300b8fd5 | 896 | DBG("Enabling UST event %s for channel %s, loglevel %s", event_name, |
85076754 | 897 | print_channel_name(channel_name), opt_loglevel ? : "<all>"); |
2bdd86d4 MD |
898 | |
899 | switch (opt_event_type) { | |
900 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
901 | /* Fall-through */ |
902 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 903 | /* Copy name and type of the event */ |
91744e14 FD |
904 | ev->type = LTTNG_EVENT_TRACEPOINT; |
905 | strncpy(ev->name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
906 | ev->name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 MD |
907 | break; |
908 | case LTTNG_EVENT_PROBE: | |
909 | case LTTNG_EVENT_FUNCTION: | |
2bdd86d4 | 910 | case LTTNG_EVENT_SYSCALL: |
dcabc190 | 911 | case LTTNG_EVENT_USERSPACE_PROBE: |
2bdd86d4 | 912 | default: |
cc62c0c0 | 913 | ERR("Event type not available for user-space tracing"); |
4ce78777 | 914 | ret = CMD_UNSUPPORTED; |
2bdd86d4 MD |
915 | goto error; |
916 | } | |
0cda4f28 | 917 | |
7ed70bc9 | 918 | if (opt_exclude) { |
91744e14 | 919 | ev->exclusion = 1; |
d5dd17fd JI |
920 | if (opt_event_type != LTTNG_EVENT_ALL && opt_event_type != LTTNG_EVENT_TRACEPOINT) { |
921 | ERR("Exclusion option can only be used with tracepoint events"); | |
922 | ret = CMD_ERROR; | |
923 | goto error; | |
924 | } | |
f78de773 JG |
925 | /* Free previously allocated items. */ |
926 | lttng_dynamic_pointer_array_reset(&exclusions); | |
9f449915 PP |
927 | ret = create_exclusion_list_and_validate( |
928 | event_name, opt_exclude, | |
f78de773 | 929 | &exclusions); |
9f449915 PP |
930 | if (ret) { |
931 | ret = CMD_ERROR; | |
7ed70bc9 JI |
932 | goto error; |
933 | } | |
502bbe89 PP |
934 | |
935 | warn_on_truncated_exclusion_names( | |
f78de773 | 936 | &exclusions, &warn); |
7ed70bc9 JI |
937 | } |
938 | ||
91744e14 | 939 | ev->loglevel_type = opt_loglevel_type; |
ed7f4083 | 940 | if (opt_loglevel) { |
7e8f2e9c JG |
941 | enum lttng_loglevel loglevel; |
942 | const int name_search_ret = loglevel_name_to_value(opt_loglevel, &loglevel); | |
943 | ||
944 | if (name_search_ret == -1) { | |
8005f29a | 945 | ERR("Unknown loglevel %s", opt_loglevel); |
2f70b271 | 946 | ret = -LTTNG_ERR_INVALID; |
8005f29a MD |
947 | goto error; |
948 | } | |
7e8f2e9c JG |
949 | |
950 | ev->loglevel = (int) loglevel; | |
22e25b71 | 951 | } else { |
91744e14 | 952 | ev->loglevel = -1; |
ed7f4083 | 953 | } |
0e115563 | 954 | } else if (opt_jul || opt_log4j || opt_python) { |
b9dfb167 DG |
955 | if (opt_event_type != LTTNG_EVENT_ALL && |
956 | opt_event_type != LTTNG_EVENT_TRACEPOINT) { | |
5cdb6027 | 957 | ERR("Event type not supported for domain."); |
b9dfb167 DG |
958 | ret = CMD_UNSUPPORTED; |
959 | goto error; | |
960 | } | |
b2064f54 | 961 | |
91744e14 | 962 | ev->loglevel_type = opt_loglevel_type; |
b2064f54 | 963 | if (opt_loglevel) { |
7e8f2e9c JG |
964 | int name_search_ret; |
965 | ||
5cdb6027 | 966 | if (opt_jul) { |
7e8f2e9c JG |
967 | enum lttng_loglevel_jul loglevel; |
968 | ||
969 | name_search_ret = loglevel_jul_name_to_value(opt_loglevel, &loglevel); | |
970 | ev->loglevel = (int) loglevel; | |
5cdb6027 | 971 | } else if (opt_log4j) { |
7e8f2e9c JG |
972 | enum lttng_loglevel_log4j loglevel; |
973 | ||
974 | name_search_ret = loglevel_log4j_name_to_value(opt_loglevel, &loglevel); | |
975 | ev->loglevel = (int) loglevel; | |
7fefa907 JG |
976 | } else { |
977 | /* python domain. */ | |
7e8f2e9c JG |
978 | enum lttng_loglevel_python loglevel; |
979 | ||
980 | name_search_ret = loglevel_python_name_to_value(opt_loglevel, &loglevel); | |
981 | ev->loglevel = (int) loglevel; | |
5cdb6027 | 982 | } |
7e8f2e9c JG |
983 | |
984 | if (name_search_ret) { | |
b2064f54 DG |
985 | ERR("Unknown loglevel %s", opt_loglevel); |
986 | ret = -LTTNG_ERR_INVALID; | |
987 | goto error; | |
988 | } | |
989 | } else { | |
5cdb6027 | 990 | if (opt_jul) { |
91744e14 | 991 | ev->loglevel = LTTNG_LOGLEVEL_JUL_ALL; |
5cdb6027 | 992 | } else if (opt_log4j) { |
91744e14 | 993 | ev->loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; |
0e115563 | 994 | } else if (opt_python) { |
91744e14 | 995 | ev->loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; |
5cdb6027 | 996 | } |
b2064f54 | 997 | } |
91744e14 FD |
998 | ev->type = LTTNG_EVENT_TRACEPOINT; |
999 | strncpy(ev->name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
1000 | ev->name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
f3ed775e | 1001 | } else { |
3ecec76a | 1002 | assert(0); |
f3ed775e DG |
1003 | } |
1004 | ||
025faf73 | 1005 | if (!opt_filter) { |
9c48cab3 JI |
1006 | char *exclusion_string; |
1007 | ||
89476427 | 1008 | command_ret = lttng_enable_event_with_exclusions(handle, |
91744e14 | 1009 | ev, channel_name, |
9f449915 | 1010 | NULL, |
f78de773 JG |
1011 | lttng_dynamic_pointer_array_get_count(&exclusions), |
1012 | (char **) exclusions.array.buffer.data); | |
1013 | exclusion_string = print_exclusions(&exclusions); | |
5ef79758 MD |
1014 | if (!exclusion_string) { |
1015 | PERROR("Cannot allocate exclusion_string"); | |
1016 | error = 1; | |
1017 | goto end; | |
1018 | } | |
89476427 | 1019 | if (command_ret < 0) { |
025faf73 | 1020 | /* Turn ret to positive value to handle the positive error code */ |
89476427 | 1021 | switch (-command_ret) { |
025faf73 | 1022 | case LTTNG_ERR_KERN_EVENT_EXIST: |
9c48cab3 | 1023 | WARN("Kernel event %s%s already enabled (channel %s, session %s)", |
85076754 | 1024 | event_name, |
9c48cab3 | 1025 | exclusion_string, |
85076754 | 1026 | print_channel_name(channel_name), session_name); |
89476427 | 1027 | warn = 1; |
025faf73 | 1028 | break; |
45d5d421 CB |
1029 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1030 | { | |
1031 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1032 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, | |
1033 | exclusion_string, | |
1034 | msg, | |
1035 | print_channel_name(channel_name), | |
1036 | session_name); | |
1037 | error = 1; | |
1038 | break; | |
1039 | } | |
dcabc190 FD |
1040 | case LTTNG_ERR_SDT_PROBE_SEMAPHORE: |
1041 | ERR("SDT probes %s guarded by semaphores are not supported (channel %s, session %s)", | |
1042 | event_name, print_channel_name(channel_name), | |
1043 | session_name); | |
1044 | error = 1; | |
1045 | break; | |
025faf73 | 1046 | default: |
9c48cab3 JI |
1047 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, |
1048 | exclusion_string, | |
da3d7d0e JRJ |
1049 | lttng_strerror(command_ret), |
1050 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1051 | ? print_raw_channel_name(channel_name) |
1052 | : print_channel_name(channel_name), | |
1053 | session_name); | |
89476427 | 1054 | error = 1; |
025faf73 DG |
1055 | break; |
1056 | } | |
89476427 | 1057 | error_holder = command_ret; |
025faf73 | 1058 | } else { |
8274eeba AB |
1059 | switch (dom.type) { |
1060 | case LTTNG_DOMAIN_KERNEL: | |
1061 | case LTTNG_DOMAIN_UST: | |
49ceaa70 | 1062 | MSG("%s event %s%s created in channel %s", |
1ceda6f1 | 1063 | lttng_domain_type_str(dom.type), |
8274eeba AB |
1064 | event_name, |
1065 | exclusion_string, | |
1066 | print_channel_name(channel_name)); | |
1067 | break; | |
1068 | case LTTNG_DOMAIN_JUL: | |
1069 | case LTTNG_DOMAIN_LOG4J: | |
1070 | case LTTNG_DOMAIN_PYTHON: | |
1071 | /* | |
1072 | * Don't print the default channel | |
1073 | * name for agent domains. | |
1074 | */ | |
895707da | 1075 | MSG("%s event %s%s enabled", |
1ceda6f1 | 1076 | lttng_domain_type_str(dom.type), |
8274eeba AB |
1077 | event_name, |
1078 | exclusion_string); | |
1079 | break; | |
1080 | default: | |
1081 | assert(0); | |
49ceaa70 | 1082 | } |
42224349 | 1083 | } |
9c48cab3 | 1084 | free(exclusion_string); |
6181537c | 1085 | } |
025faf73 DG |
1086 | |
1087 | if (opt_filter) { | |
9c48cab3 JI |
1088 | char *exclusion_string; |
1089 | ||
89476427 | 1090 | /* Filter present */ |
91744e14 | 1091 | ev->filter = 1; |
89476427 | 1092 | |
91744e14 | 1093 | command_ret = lttng_enable_event_with_exclusions(handle, ev, channel_name, |
9f449915 | 1094 | opt_filter, |
f78de773 JG |
1095 | lttng_dynamic_pointer_array_get_count(&exclusions), |
1096 | (char **) exclusions.array.buffer.data); | |
1097 | exclusion_string = print_exclusions(&exclusions); | |
5ef79758 MD |
1098 | if (!exclusion_string) { |
1099 | PERROR("Cannot allocate exclusion_string"); | |
1100 | error = 1; | |
1101 | goto end; | |
1102 | } | |
89476427 JRJ |
1103 | if (command_ret < 0) { |
1104 | switch (-command_ret) { | |
7671f53c | 1105 | case LTTNG_ERR_FILTER_EXIST: |
9c48cab3 | 1106 | WARN("Filter on event %s%s is already enabled" |
7671f53c | 1107 | " (channel %s, session %s)", |
85076754 | 1108 | event_name, |
9c48cab3 | 1109 | exclusion_string, |
85076754 | 1110 | print_channel_name(channel_name), session_name); |
89476427 | 1111 | warn = 1; |
7671f53c | 1112 | break; |
45d5d421 CB |
1113 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1114 | { | |
1115 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
91744e14 | 1116 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev->name, |
45d5d421 CB |
1117 | exclusion_string, |
1118 | msg, | |
1119 | print_channel_name(channel_name), | |
1120 | session_name, opt_filter); | |
1121 | error = 1; | |
1122 | break; | |
1123 | } | |
7671f53c | 1124 | default: |
91744e14 | 1125 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev->name, |
9c48cab3 | 1126 | exclusion_string, |
da3d7d0e JRJ |
1127 | lttng_strerror(command_ret), |
1128 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1129 | ? print_raw_channel_name(channel_name) |
1130 | : print_channel_name(channel_name), | |
1131 | session_name, opt_filter); | |
89476427 | 1132 | error = 1; |
7671f53c CB |
1133 | break; |
1134 | } | |
89476427 JRJ |
1135 | error_holder = command_ret; |
1136 | ||
16363652 | 1137 | } else { |
9c48cab3 JI |
1138 | MSG("Event %s%s: Filter '%s' successfully set", |
1139 | event_name, exclusion_string, | |
1140 | opt_filter); | |
53a80697 | 1141 | } |
9c48cab3 | 1142 | free(exclusion_string); |
53a80697 | 1143 | } |
6181537c | 1144 | |
89476427 JRJ |
1145 | if (lttng_opt_mi) { |
1146 | if (command_ret) { | |
1147 | success = 0; | |
91744e14 | 1148 | ev->enabled = 0; |
89476427 | 1149 | } else { |
91744e14 | 1150 | ev->enabled = 1; |
89476427 JRJ |
1151 | } |
1152 | ||
91744e14 | 1153 | ret = mi_lttng_event(writer, ev, 1, handle->domain.type); |
89476427 JRJ |
1154 | if (ret) { |
1155 | ret = CMD_ERROR; | |
1156 | goto error; | |
1157 | } | |
1158 | ||
1159 | /* print exclusion */ | |
f78de773 | 1160 | ret = mi_print_exclusion(&exclusions); |
89476427 JRJ |
1161 | if (ret) { |
1162 | ret = CMD_ERROR; | |
1163 | goto error; | |
1164 | } | |
1165 | ||
1166 | /* Success ? */ | |
1167 | ret = mi_lttng_writer_write_element_bool(writer, | |
1168 | mi_lttng_element_command_success, success); | |
1169 | if (ret) { | |
1170 | ret = CMD_ERROR; | |
1171 | goto end; | |
1172 | } | |
1173 | ||
1174 | /* Close event element */ | |
1175 | ret = mi_lttng_writer_close_element(writer); | |
1176 | if (ret) { | |
1177 | ret = CMD_ERROR; | |
1178 | goto end; | |
1179 | } | |
1180 | } | |
1181 | ||
f3ed775e DG |
1182 | /* Next event */ |
1183 | event_name = strtok(NULL, ","); | |
89476427 JRJ |
1184 | /* Reset warn, error and success */ |
1185 | success = 1; | |
f3ed775e DG |
1186 | } |
1187 | ||
8c9ae521 | 1188 | end: |
89476427 JRJ |
1189 | /* Close Mi */ |
1190 | if (lttng_opt_mi) { | |
1191 | /* Close events element */ | |
1192 | ret = mi_lttng_writer_close_element(writer); | |
1193 | if (ret) { | |
1194 | ret = CMD_ERROR; | |
1195 | goto error; | |
1196 | } | |
1197 | } | |
f3ed775e | 1198 | error: |
ae856491 DG |
1199 | if (warn) { |
1200 | ret = CMD_WARNING; | |
1201 | } | |
89476427 JRJ |
1202 | if (error) { |
1203 | ret = CMD_ERROR; | |
1204 | } | |
cd80958d | 1205 | lttng_destroy_handle(handle); |
f78de773 | 1206 | lttng_dynamic_pointer_array_reset(&exclusions); |
0c4e727b | 1207 | lttng_userspace_probe_location_destroy(uprobe_loc); |
7ed70bc9 | 1208 | |
89476427 JRJ |
1209 | /* Overwrite ret with error_holder if there was an actual error with |
1210 | * enabling an event. | |
1211 | */ | |
1212 | ret = error_holder ? error_holder : ret; | |
1213 | ||
91744e14 | 1214 | lttng_event_destroy(ev); |
f3ed775e DG |
1215 | return ret; |
1216 | } | |
1217 | ||
1218 | /* | |
6181537c | 1219 | * Add event to trace session |
f3ed775e DG |
1220 | */ |
1221 | int cmd_enable_events(int argc, const char **argv) | |
1222 | { | |
89476427 | 1223 | int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1; |
f3ed775e | 1224 | static poptContext pc; |
cd80958d | 1225 | char *session_name = NULL; |
68c7f6e5 | 1226 | const char *leftover = NULL; |
de044b7a | 1227 | int event_type = -1; |
f3ed775e DG |
1228 | |
1229 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1230 | poptReadDefaultConfig(pc, 0); | |
1231 | ||
1232 | /* Default event type */ | |
7a3d1328 | 1233 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
1234 | |
1235 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1236 | switch (opt) { | |
1237 | case OPT_HELP: | |
4ba92f18 | 1238 | SHOW_HELP(); |
f3ed775e | 1239 | goto end; |
f3ed775e | 1240 | case OPT_TRACEPOINT: |
e6ddca71 | 1241 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 1242 | break; |
cf0e5467 | 1243 | case OPT_PROBE: |
7d29a247 | 1244 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e | 1245 | break; |
dcabc190 FD |
1246 | case OPT_USERSPACE_PROBE: |
1247 | opt_event_type = LTTNG_EVENT_USERSPACE_PROBE; | |
1248 | break; | |
f3ed775e DG |
1249 | case OPT_FUNCTION: |
1250 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b | 1251 | break; |
a54bd42d MD |
1252 | case OPT_SYSCALL: |
1253 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 1254 | break; |
eeac7d46 MD |
1255 | case OPT_USERSPACE: |
1256 | opt_userspace = 1; | |
eeac7d46 | 1257 | break; |
0cda4f28 | 1258 | case OPT_LOGLEVEL: |
8005f29a | 1259 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE; |
0cda4f28 MD |
1260 | opt_loglevel = poptGetOptArg(pc); |
1261 | break; | |
1262 | case OPT_LOGLEVEL_ONLY: | |
8005f29a | 1263 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE; |
0cda4f28 | 1264 | opt_loglevel = poptGetOptArg(pc); |
13dce3b7 | 1265 | break; |
679b4943 SM |
1266 | case OPT_LIST_OPTIONS: |
1267 | list_cmd_options(stdout, long_options); | |
679b4943 | 1268 | goto end; |
53a80697 MD |
1269 | case OPT_FILTER: |
1270 | break; | |
fac3366c JI |
1271 | case OPT_EXCLUDE: |
1272 | break; | |
f3ed775e | 1273 | default: |
f3ed775e DG |
1274 | ret = CMD_UNDEFINED; |
1275 | goto end; | |
1276 | } | |
de044b7a DG |
1277 | |
1278 | /* Validate event type. Multiple event type are not supported. */ | |
1279 | if (event_type == -1) { | |
1280 | event_type = opt_event_type; | |
1281 | } else { | |
1282 | if (event_type != opt_event_type) { | |
1283 | ERR("Multiple event type not supported."); | |
1284 | ret = CMD_ERROR; | |
1285 | goto end; | |
1286 | } | |
1287 | } | |
f3ed775e DG |
1288 | } |
1289 | ||
3ecec76a | 1290 | ret = print_missing_or_multiple_domains( |
3533d06b JG |
1291 | opt_kernel + opt_userspace + opt_jul + opt_log4j + |
1292 | opt_python, | |
1293 | true); | |
3ecec76a PP |
1294 | if (ret) { |
1295 | ret = CMD_ERROR; | |
1296 | goto end; | |
1297 | } | |
1298 | ||
89476427 JRJ |
1299 | /* Mi check */ |
1300 | if (lttng_opt_mi) { | |
1301 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1302 | if (!writer) { | |
1303 | ret = -LTTNG_ERR_NOMEM; | |
1304 | goto end; | |
1305 | } | |
1306 | ||
1307 | /* Open command element */ | |
1308 | ret = mi_lttng_writer_command_open(writer, | |
1309 | mi_lttng_element_command_enable_event); | |
1310 | if (ret) { | |
1311 | ret = CMD_ERROR; | |
1312 | goto end; | |
1313 | } | |
1314 | ||
1315 | /* Open output element */ | |
1316 | ret = mi_lttng_writer_open_element(writer, | |
1317 | mi_lttng_element_command_output); | |
1318 | if (ret) { | |
1319 | ret = CMD_ERROR; | |
1320 | goto end; | |
1321 | } | |
1322 | } | |
1323 | ||
f3ed775e DG |
1324 | opt_event_list = (char*) poptGetArg(pc); |
1325 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
1326 | ERR("Missing event name(s).\n"); | |
ca1c3607 | 1327 | ret = CMD_ERROR; |
f3ed775e DG |
1328 | goto end; |
1329 | } | |
1330 | ||
68c7f6e5 JD |
1331 | leftover = poptGetArg(pc); |
1332 | if (leftover) { | |
1333 | ERR("Unknown argument: %s", leftover); | |
1334 | ret = CMD_ERROR; | |
1335 | goto end; | |
1336 | } | |
1337 | ||
cd80958d DG |
1338 | if (!opt_session_name) { |
1339 | session_name = get_session_name(); | |
1340 | if (session_name == NULL) { | |
89476427 JRJ |
1341 | command_ret = CMD_ERROR; |
1342 | success = 0; | |
1343 | goto mi_closing; | |
cd80958d DG |
1344 | } |
1345 | } else { | |
1346 | session_name = opt_session_name; | |
1347 | } | |
1348 | ||
89476427 JRJ |
1349 | command_ret = enable_events(session_name); |
1350 | if (command_ret) { | |
1351 | success = 0; | |
1352 | goto mi_closing; | |
1353 | } | |
1354 | ||
1355 | mi_closing: | |
1356 | /* Mi closing */ | |
1357 | if (lttng_opt_mi) { | |
1358 | /* Close output element */ | |
1359 | ret = mi_lttng_writer_close_element(writer); | |
1360 | if (ret) { | |
1361 | ret = CMD_ERROR; | |
1362 | goto end; | |
1363 | } | |
1364 | ||
1365 | ret = mi_lttng_writer_write_element_bool(writer, | |
1366 | mi_lttng_element_command_success, success); | |
1367 | if (ret) { | |
1368 | ret = CMD_ERROR; | |
1369 | goto end; | |
1370 | } | |
1371 | ||
1372 | /* Command element close */ | |
1373 | ret = mi_lttng_writer_command_close(writer); | |
1374 | if (ret) { | |
1375 | ret = CMD_ERROR; | |
1376 | goto end; | |
1377 | } | |
1378 | } | |
f3ed775e DG |
1379 | |
1380 | end: | |
89476427 JRJ |
1381 | /* Mi clean-up */ |
1382 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1383 | /* Preserve original error code */ | |
1384 | ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL; | |
1385 | } | |
1386 | ||
cd80958d DG |
1387 | if (opt_session_name == NULL) { |
1388 | free(session_name); | |
1389 | } | |
1390 | ||
89476427 JRJ |
1391 | /* Overwrite ret if an error occurred in enable_events */ |
1392 | ret = command_ret ? command_ret : ret; | |
1393 | ||
ca1c3607 | 1394 | poptFreeContext(pc); |
f3ed775e DG |
1395 | return ret; |
1396 | } | |
9f449915 | 1397 |