Commit | Line | Data |
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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 | ||
18 | #define _GNU_SOURCE | |
19 | #include <popt.h> | |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
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 | |
c399183f | 29 | #include "../command.h" |
42224349 | 30 | #include <src/common/sessiond-comm/sessiond-comm.h> |
f3ed775e DG |
31 | |
32 | static char *opt_event_list; | |
33 | static int opt_event_type; | |
0cda4f28 MD |
34 | static const char *opt_loglevel; |
35 | static int opt_loglevel_type; | |
6181537c | 36 | static int opt_kernel; |
5440dc42 | 37 | static char *opt_session_name; |
f3ed775e | 38 | static int opt_userspace; |
b9dfb167 | 39 | static int opt_jul; |
f3ed775e | 40 | static int opt_enable_all; |
cf0e5467 | 41 | static char *opt_probe; |
8f0d098b MD |
42 | static char *opt_function; |
43 | static char *opt_function_entry_symbol; | |
f3ed775e | 44 | static char *opt_channel_name; |
53a80697 | 45 | static char *opt_filter; |
d78d6610 DG |
46 | #if 0 |
47 | /* Not implemented yet */ | |
48 | static char *opt_cmd_name; | |
49 | static pid_t opt_pid; | |
50 | #endif | |
f3ed775e DG |
51 | |
52 | enum { | |
53 | OPT_HELP = 1, | |
f3ed775e | 54 | OPT_TRACEPOINT, |
cf0e5467 | 55 | OPT_PROBE, |
f3ed775e | 56 | OPT_FUNCTION, |
8f0d098b | 57 | OPT_FUNCTION_ENTRY, |
a54bd42d | 58 | OPT_SYSCALL, |
eeac7d46 | 59 | OPT_USERSPACE, |
0cda4f28 MD |
60 | OPT_LOGLEVEL, |
61 | OPT_LOGLEVEL_ONLY, | |
679b4943 | 62 | OPT_LIST_OPTIONS, |
53a80697 | 63 | OPT_FILTER, |
f3ed775e DG |
64 | }; |
65 | ||
cd80958d DG |
66 | static struct lttng_handle *handle; |
67 | ||
f3ed775e DG |
68 | static struct poptOption long_options[] = { |
69 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
70 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 71 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e14f64a8 | 72 | {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0}, |
f3ed775e DG |
73 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
74 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, | |
d78d6610 | 75 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, |
b9dfb167 | 76 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
f3ed775e | 77 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0}, |
7ebae521 | 78 | {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0}, |
40e9d5d3 | 79 | {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0}, |
b213d387 MD |
80 | #if 0 |
81 | /* | |
82 | * Currently removed from lttng kernel tracer. Removed from | |
83 | * lttng UI to discourage its use. | |
84 | */ | |
40e9d5d3 | 85 | {"function:entry", 0, POPT_ARG_STRING, &opt_function_entry_symbol, OPT_FUNCTION_ENTRY, 0, 0}, |
b213d387 | 86 | #endif |
7ebae521 | 87 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0}, |
0cda4f28 MD |
88 | {"loglevel", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL, 0, 0}, |
89 | {"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0}, | |
679b4943 | 90 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
53a80697 | 91 | {"filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0}, |
f3ed775e DG |
92 | {0, 0, 0, 0, 0, 0, 0} |
93 | }; | |
94 | ||
95 | /* | |
96 | * usage | |
97 | */ | |
98 | static void usage(FILE *ofp) | |
99 | { | |
32a6298d | 100 | fprintf(ofp, "usage: lttng enable-event NAME[,NAME2,...] [-k|-u] [OPTIONS] \n"); |
f3ed775e | 101 | fprintf(ofp, "\n"); |
32a6298d | 102 | fprintf(ofp, "Options:\n"); |
f3ed775e | 103 | fprintf(ofp, " -h, --help Show this help\n"); |
679b4943 | 104 | fprintf(ofp, " --list-options Simple listing of options\n"); |
32a6298d DG |
105 | fprintf(ofp, " -s, --session NAME Apply to session name\n"); |
106 | fprintf(ofp, " -c, --channel NAME Apply to this channel\n"); | |
e08bff8d | 107 | fprintf(ofp, " -a, --all Enable all tracepoints and syscalls\n"); |
f3ed775e | 108 | fprintf(ofp, " -k, --kernel Apply for the kernel tracer\n"); |
27221701 | 109 | fprintf(ofp, " -u, --userspace Apply to the user-space tracer\n"); |
b9dfb167 | 110 | fprintf(ofp, " -j, --jul Apply for Java application using JUL\n"); |
f3ed775e DG |
111 | fprintf(ofp, "\n"); |
112 | fprintf(ofp, "Event options:\n"); | |
113 | fprintf(ofp, " --tracepoint Tracepoint event (default)\n"); | |
be49af1e MD |
114 | fprintf(ofp, " - userspace tracer supports wildcards at end of string.\n"); |
115 | fprintf(ofp, " Don't forget to quote to deal with bash expansion.\n"); | |
116 | fprintf(ofp, " e.g.:\n"); | |
117 | fprintf(ofp, " \"*\"\n"); | |
118 | fprintf(ofp, " \"app_component:na*\"\n"); | |
6a240cd9 | 119 | fprintf(ofp, " --probe (addr | symbol | symbol+offset)\n"); |
cf0e5467 MD |
120 | fprintf(ofp, " Dynamic probe.\n"); |
121 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
122 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
6a240cd9 | 123 | fprintf(ofp, " --function (addr | symbol | symbol+offset)\n"); |
8f0d098b MD |
124 | fprintf(ofp, " Dynamic function entry/return probe.\n"); |
125 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
126 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
b213d387 | 127 | #if 0 |
8f0d098b MD |
128 | fprintf(ofp, " --function:entry symbol\n"); |
129 | fprintf(ofp, " Function tracer event\n"); | |
b213d387 | 130 | #endif |
a54bd42d | 131 | fprintf(ofp, " --syscall System call event\n"); |
f3ed775e | 132 | fprintf(ofp, "\n"); |
300b8fd5 MD |
133 | fprintf(ofp, " --loglevel name\n"); |
134 | fprintf(ofp, " Tracepoint loglevel range from 0 to loglevel\n"); | |
135 | fprintf(ofp, " --loglevel-only name\n"); | |
136 | fprintf(ofp, " Tracepoint loglevel (only this loglevel)\n"); | |
137 | fprintf(ofp, "\n"); | |
0c8477c8 MD |
138 | fprintf(ofp, " The loglevel or loglevel-only options should be\n"); |
139 | fprintf(ofp, " combined with a tracepoint name or tracepoint\n"); | |
140 | fprintf(ofp, " wildcard.\n"); | |
141 | fprintf(ofp, " Available loglevels:\n"); | |
142 | fprintf(ofp, " (higher value is more verbose)\n"); | |
46839cc2 MD |
143 | fprintf(ofp, " TRACE_EMERG = 0\n"); |
144 | fprintf(ofp, " TRACE_ALERT = 1\n"); | |
145 | fprintf(ofp, " TRACE_CRIT = 2\n"); | |
146 | fprintf(ofp, " TRACE_ERR = 3\n"); | |
147 | fprintf(ofp, " TRACE_WARNING = 4\n"); | |
148 | fprintf(ofp, " TRACE_NOTICE = 5\n"); | |
149 | fprintf(ofp, " TRACE_INFO = 6\n"); | |
150 | fprintf(ofp, " TRACE_DEBUG_SYSTEM = 7\n"); | |
151 | fprintf(ofp, " TRACE_DEBUG_PROGRAM = 8\n"); | |
152 | fprintf(ofp, " TRACE_DEBUG_PROCESS = 9\n"); | |
153 | fprintf(ofp, " TRACE_DEBUG_MODULE = 10\n"); | |
154 | fprintf(ofp, " TRACE_DEBUG_UNIT = 11\n"); | |
155 | fprintf(ofp, " TRACE_DEBUG_FUNCTION = 12\n"); | |
156 | fprintf(ofp, " TRACE_DEBUG_LINE = 13\n"); | |
157 | fprintf(ofp, " TRACE_DEBUG = 14\n"); | |
158 | fprintf(ofp, " (shortcuts such as \"system\" are allowed)\n"); | |
f2611ab0 | 159 | fprintf(ofp, " -f, --filter \'expression\'\n"); |
ee8ccafa MD |
160 | fprintf(ofp, " Filter expression on event fields and context.\n"); |
161 | fprintf(ofp, " Event recording depends on evaluation.\n"); | |
919e300c MD |
162 | fprintf(ofp, " Only specify on first activation of\n"); |
163 | fprintf(ofp, " a given event within a session.\n"); | |
164 | fprintf(ofp, " Filter only allowed when enabling\n"); | |
165 | fprintf(ofp, " events within a session before tracing\n"); | |
9bd578f5 MD |
166 | fprintf(ofp, " is started. If the filter fails to link\n"); |
167 | fprintf(ofp, " with the event within the traced domain,\n"); | |
168 | fprintf(ofp, " the event will be discarded. Currently,\n"); | |
169 | fprintf(ofp, " filter is only implemented for the user-space\n"); | |
170 | fprintf(ofp, " tracer.\n"); | |
171 | fprintf(ofp, " Expression examples:.\n"); | |
172 | fprintf(ofp, " \n"); | |
173 | fprintf(ofp, " 'intfield > 500 && intfield < 503'\n"); | |
6a240cd9 | 174 | fprintf(ofp, " '(strfield == \"test\" || intfield != 10) && intfield > 33'\n"); |
9bd578f5 MD |
175 | fprintf(ofp, " 'doublefield > 1.1 && intfield < 5.3'\n"); |
176 | fprintf(ofp, " \n"); | |
177 | fprintf(ofp, " Wildcards are allowed at the end of strings:\n"); | |
178 | fprintf(ofp, " 'seqfield1 == \"te*\"'\n"); | |
179 | fprintf(ofp, " In string literals, the escape character is '\\'.\n"); | |
180 | fprintf(ofp, " Use '\\*' for the '*' character, and '\\\\' for\n"); | |
ee8ccafa MD |
181 | fprintf(ofp, " the '\\' character. Wildcard match any sequence of,\n"); |
182 | fprintf(ofp, " characters including an empty sub-string (match 0 or\n"); | |
183 | fprintf(ofp, " more characters).\n"); | |
184 | fprintf(ofp, "\n"); | |
185 | fprintf(ofp, " Context information can be used for filtering. The\n"); | |
186 | fprintf(ofp, " examples below show usage of context filtering on\n"); | |
187 | fprintf(ofp, " process name (with a wildcard), process ID range, and\n"); | |
188 | fprintf(ofp, " unique thread ID for filtering. The process and\n"); | |
189 | fprintf(ofp, " thread ID of running applications can be found under\n"); | |
190 | fprintf(ofp, " columns \"PID\" and \"LWP\" of the \"ps -eLf\" command.\n"); | |
191 | fprintf(ofp, "\n"); | |
192 | fprintf(ofp, " '$ctx.procname == \"demo*\"'\n"); | |
193 | fprintf(ofp, " '$ctx.vpid >= 4433 && $ctx.vpid < 4455'\n"); | |
194 | fprintf(ofp, " '$ctx.vtid == 1234'\n"); | |
300b8fd5 | 195 | fprintf(ofp, "\n"); |
f3ed775e DG |
196 | } |
197 | ||
0d63dd19 | 198 | /* |
6181537c | 199 | * Parse probe options. |
0d63dd19 | 200 | */ |
cf0e5467 | 201 | static int parse_probe_opts(struct lttng_event *ev, char *opt) |
0d63dd19 DG |
202 | { |
203 | int ret; | |
8ff0bbd0 | 204 | char s_hex[19]; |
0d63dd19 DG |
205 | char name[LTTNG_SYMBOL_NAME_LEN]; |
206 | ||
207 | if (opt == NULL) { | |
208 | ret = -1; | |
8f0d098b | 209 | goto end; |
0d63dd19 DG |
210 | } |
211 | ||
212 | /* Check for symbol+offset */ | |
8ff0bbd0 | 213 | ret = sscanf(opt, "%[^'+']+%s", name, s_hex); |
0d63dd19 | 214 | if (ret == 2) { |
7d29a247 | 215 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 216 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
cf0e5467 | 217 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
9d035200 | 218 | if (*s_hex == '\0') { |
8ff0bbd0 | 219 | ERR("Invalid probe offset %s", s_hex); |
0d63dd19 | 220 | ret = -1; |
8f0d098b | 221 | goto end; |
0d63dd19 | 222 | } |
8ff0bbd0 | 223 | ev->attr.probe.offset = strtoul(s_hex, NULL, 0); |
cf0e5467 | 224 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); |
3000dc78 | 225 | ev->attr.probe.addr = 0; |
8f0d098b MD |
226 | goto end; |
227 | } | |
228 | ||
229 | /* Check for symbol */ | |
230 | if (isalpha(name[0])) { | |
231 | ret = sscanf(opt, "%s", name); | |
232 | if (ret == 1) { | |
233 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 234 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
8f0d098b MD |
235 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
236 | ev->attr.probe.offset = 0; | |
237 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); | |
238 | ev->attr.probe.addr = 0; | |
239 | goto end; | |
240 | } | |
0d63dd19 DG |
241 | } |
242 | ||
243 | /* Check for address */ | |
8ff0bbd0 | 244 | ret = sscanf(opt, "%s", s_hex); |
0d63dd19 | 245 | if (ret > 0) { |
9d035200 | 246 | if (*s_hex == '\0') { |
8ff0bbd0 | 247 | ERR("Invalid probe address %s", s_hex); |
0d63dd19 | 248 | ret = -1; |
8f0d098b | 249 | goto end; |
0d63dd19 | 250 | } |
8ff0bbd0 | 251 | ev->attr.probe.addr = strtoul(s_hex, NULL, 0); |
cf0e5467 | 252 | DBG("probe addr %" PRIu64, ev->attr.probe.addr); |
3000dc78 DG |
253 | ev->attr.probe.offset = 0; |
254 | memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN); | |
8f0d098b | 255 | goto end; |
0d63dd19 DG |
256 | } |
257 | ||
258 | /* No match */ | |
259 | ret = -1; | |
260 | ||
8f0d098b | 261 | end: |
0d63dd19 DG |
262 | return ret; |
263 | } | |
264 | ||
8005f29a | 265 | /* |
0c8477c8 | 266 | * Maps loglevel from string to value |
8005f29a MD |
267 | */ |
268 | static | |
46839cc2 | 269 | int loglevel_str_to_value(const char *inputstr) |
8005f29a | 270 | { |
46839cc2 MD |
271 | int i = 0; |
272 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
273 | ||
e051e07c DG |
274 | /* |
275 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
276 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
277 | */ | |
278 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
46839cc2 MD |
279 | str[i] = toupper(inputstr[i]); |
280 | i++; | |
281 | } | |
282 | str[i] = '\0'; | |
283 | if (!strcmp(str, "TRACE_EMERG") || !strcmp(str, "EMERG")) { | |
284 | return LTTNG_LOGLEVEL_EMERG; | |
285 | } else if (!strcmp(str, "TRACE_ALERT") || !strcmp(str, "ALERT")) { | |
286 | return LTTNG_LOGLEVEL_ALERT; | |
287 | } else if (!strcmp(str, "TRACE_CRIT") || !strcmp(str, "CRIT")) { | |
288 | return LTTNG_LOGLEVEL_CRIT; | |
289 | } else if (!strcmp(str, "TRACE_ERR") || !strcmp(str, "ERR")) { | |
290 | return LTTNG_LOGLEVEL_ERR; | |
291 | } else if (!strcmp(str, "TRACE_WARNING") || !strcmp(str, "WARNING")) { | |
292 | return LTTNG_LOGLEVEL_WARNING; | |
293 | } else if (!strcmp(str, "TRACE_NOTICE") || !strcmp(str, "NOTICE")) { | |
294 | return LTTNG_LOGLEVEL_NOTICE; | |
295 | } else if (!strcmp(str, "TRACE_INFO") || !strcmp(str, "INFO")) { | |
296 | return LTTNG_LOGLEVEL_INFO; | |
297 | } else if (!strcmp(str, "TRACE_DEBUG_SYSTEM") || !strcmp(str, "DEBUG_SYSTEM") || !strcmp(str, "SYSTEM")) { | |
298 | return LTTNG_LOGLEVEL_DEBUG_SYSTEM; | |
299 | } else if (!strcmp(str, "TRACE_DEBUG_PROGRAM") || !strcmp(str, "DEBUG_PROGRAM") || !strcmp(str, "PROGRAM")) { | |
300 | return LTTNG_LOGLEVEL_DEBUG_PROGRAM; | |
301 | } else if (!strcmp(str, "TRACE_DEBUG_PROCESS") || !strcmp(str, "DEBUG_PROCESS") || !strcmp(str, "PROCESS")) { | |
302 | return LTTNG_LOGLEVEL_DEBUG_PROCESS; | |
303 | } else if (!strcmp(str, "TRACE_DEBUG_MODULE") || !strcmp(str, "DEBUG_MODULE") || !strcmp(str, "MODULE")) { | |
304 | return LTTNG_LOGLEVEL_DEBUG_MODULE; | |
305 | } else if (!strcmp(str, "TRACE_DEBUG_UNIT") || !strcmp(str, "DEBUG_UNIT") || !strcmp(str, "UNIT")) { | |
306 | return LTTNG_LOGLEVEL_DEBUG_UNIT; | |
307 | } else if (!strcmp(str, "TRACE_DEBUG_FUNCTION") || !strcmp(str, "DEBUG_FUNCTION") || !strcmp(str, "FUNCTION")) { | |
308 | return LTTNG_LOGLEVEL_DEBUG_FUNCTION; | |
309 | } else if (!strcmp(str, "TRACE_DEBUG_LINE") || !strcmp(str, "DEBUG_LINE") || !strcmp(str, "LINE")) { | |
310 | return LTTNG_LOGLEVEL_DEBUG_LINE; | |
311 | } else if (!strcmp(str, "TRACE_DEBUG") || !strcmp(str, "DEBUG")) { | |
312 | return LTTNG_LOGLEVEL_DEBUG; | |
8005f29a MD |
313 | } else { |
314 | return -1; | |
315 | } | |
316 | } | |
317 | ||
85076754 MD |
318 | static |
319 | const char *print_channel_name(const char *name) | |
320 | { | |
321 | return name ? : DEFAULT_CHANNEL_NAME; | |
322 | } | |
323 | ||
324 | static | |
325 | const char *print_raw_channel_name(const char *name) | |
326 | { | |
327 | return name ? : "<default>"; | |
328 | } | |
329 | ||
f3ed775e | 330 | /* |
6181537c | 331 | * Enabling event using the lttng API. |
f3ed775e | 332 | */ |
cd80958d | 333 | static int enable_events(char *session_name) |
f3ed775e | 334 | { |
85076754 | 335 | int ret = CMD_SUCCESS, warn = 0; |
b73d0b29 | 336 | char *event_name, *channel_name = NULL; |
f3ed775e | 337 | struct lttng_event ev; |
7d29a247 | 338 | struct lttng_domain dom; |
f3ed775e | 339 | |
441c16a7 MD |
340 | memset(&ev, 0, sizeof(ev)); |
341 | memset(&dom, 0, sizeof(dom)); | |
342 | ||
53a80697 MD |
343 | if (opt_kernel) { |
344 | if (opt_filter) { | |
345 | ERR("Filter not implement for kernel tracing yet"); | |
346 | ret = CMD_ERROR; | |
347 | goto error; | |
348 | } | |
349 | } | |
350 | ||
7d29a247 DG |
351 | /* Create lttng domain */ |
352 | if (opt_kernel) { | |
353 | dom.type = LTTNG_DOMAIN_KERNEL; | |
7972aab2 | 354 | dom.buf_type = LTTNG_BUFFER_GLOBAL; |
d78d6610 | 355 | } else if (opt_userspace) { |
2bdd86d4 | 356 | dom.type = LTTNG_DOMAIN_UST; |
7972aab2 | 357 | /* Default. */ |
8692d4e5 | 358 | dom.buf_type = LTTNG_BUFFER_PER_UID; |
b9dfb167 DG |
359 | } else if (opt_jul) { |
360 | dom.type = LTTNG_DOMAIN_JUL; | |
361 | /* Default. */ | |
362 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
6181537c | 363 | } else { |
b9dfb167 | 364 | print_missing_domain(); |
d16c1a4c | 365 | ret = CMD_ERROR; |
6181537c | 366 | goto error; |
2bdd86d4 | 367 | } |
7d29a247 | 368 | |
85076754 | 369 | channel_name = opt_channel_name; |
ae856491 | 370 | |
cd80958d DG |
371 | handle = lttng_create_handle(session_name, &dom); |
372 | if (handle == NULL) { | |
373 | ret = -1; | |
374 | goto error; | |
375 | } | |
1aef21b6 | 376 | |
cd80958d | 377 | if (opt_enable_all) { |
8c9ae521 | 378 | /* Default setup for enable all */ |
75e8c5ab MD |
379 | if (opt_kernel) { |
380 | ev.type = opt_event_type; | |
381 | ev.name[0] = '\0'; | |
300b8fd5 MD |
382 | /* kernel loglevels not implemented */ |
383 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; | |
75e8c5ab MD |
384 | } else { |
385 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
386 | strcpy(ev.name, "*"); | |
300b8fd5 MD |
387 | ev.loglevel_type = opt_loglevel_type; |
388 | if (opt_loglevel) { | |
389 | ev.loglevel = loglevel_str_to_value(opt_loglevel); | |
390 | if (ev.loglevel == -1) { | |
391 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 392 | ret = -LTTNG_ERR_INVALID; |
300b8fd5 MD |
393 | goto error; |
394 | } | |
22e25b71 MD |
395 | } else { |
396 | ev.loglevel = -1; | |
300b8fd5 | 397 | } |
75e8c5ab | 398 | } |
8c9ae521 | 399 | |
025faf73 DG |
400 | if (!opt_filter) { |
401 | ret = lttng_enable_event(handle, &ev, channel_name); | |
402 | if (ret < 0) { | |
403 | switch (-ret) { | |
404 | case LTTNG_ERR_KERN_EVENT_EXIST: | |
405 | WARN("Kernel events already enabled (channel %s, session %s)", | |
85076754 | 406 | print_channel_name(channel_name), session_name); |
025faf73 DG |
407 | break; |
408 | default: | |
409 | ERR("Events: %s (channel %s, session %s)", | |
85076754 MD |
410 | lttng_strerror(ret), |
411 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
412 | ? print_raw_channel_name(channel_name) | |
413 | : print_channel_name(channel_name), | |
414 | session_name); | |
025faf73 DG |
415 | break; |
416 | } | |
417 | goto end; | |
42224349 | 418 | } |
8c9ae521 | 419 | |
025faf73 DG |
420 | switch (opt_event_type) { |
421 | case LTTNG_EVENT_TRACEPOINT: | |
422 | if (opt_loglevel) { | |
423 | MSG("All %s tracepoints are enabled in channel %s for loglevel %s", | |
b9dfb167 | 424 | get_domain_str(dom.type), |
85076754 | 425 | print_channel_name(channel_name), |
025faf73 DG |
426 | opt_loglevel); |
427 | } else { | |
428 | MSG("All %s tracepoints are enabled in channel %s", | |
b9dfb167 | 429 | get_domain_str(dom.type), |
85076754 | 430 | print_channel_name(channel_name)); |
57064ada | 431 | |
025faf73 DG |
432 | } |
433 | break; | |
434 | case LTTNG_EVENT_SYSCALL: | |
435 | if (opt_kernel) { | |
436 | MSG("All kernel system calls are enabled in channel %s", | |
85076754 | 437 | print_channel_name(channel_name)); |
025faf73 DG |
438 | } |
439 | break; | |
440 | case LTTNG_EVENT_ALL: | |
441 | if (opt_loglevel) { | |
442 | MSG("All %s events are enabled in channel %s for loglevel %s", | |
b9dfb167 | 443 | get_domain_str(dom.type), |
85076754 | 444 | print_channel_name(channel_name), |
025faf73 DG |
445 | opt_loglevel); |
446 | } else { | |
447 | MSG("All %s events are enabled in channel %s", | |
b9dfb167 | 448 | get_domain_str(dom.type), |
85076754 | 449 | print_channel_name(channel_name)); |
025faf73 DG |
450 | } |
451 | break; | |
452 | default: | |
453 | /* | |
454 | * We should not be here since lttng_enable_event should have | |
455 | * failed on the event type. | |
456 | */ | |
457 | goto error; | |
57064ada | 458 | } |
f3ed775e | 459 | } |
025faf73 DG |
460 | if (opt_filter) { |
461 | ret = lttng_enable_event_with_filter(handle, &ev, channel_name, | |
16363652 DG |
462 | opt_filter); |
463 | if (ret < 0) { | |
464 | switch (-ret) { | |
465 | case LTTNG_ERR_FILTER_EXIST: | |
85076754 | 466 | WARN("Filter on all events is already enabled" |
16363652 | 467 | " (channel %s, session %s)", |
85076754 | 468 | print_channel_name(channel_name), session_name); |
16363652 DG |
469 | break; |
470 | default: | |
85076754 MD |
471 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", |
472 | lttng_strerror(ret), | |
473 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
474 | ? print_raw_channel_name(channel_name) | |
475 | : print_channel_name(channel_name), | |
476 | session_name, opt_filter); | |
16363652 DG |
477 | break; |
478 | } | |
479 | goto error; | |
480 | } else { | |
481 | MSG("Filter '%s' successfully set", opt_filter); | |
482 | } | |
483 | } | |
8c9ae521 | 484 | goto end; |
f3ed775e DG |
485 | } |
486 | ||
487 | /* Strip event list */ | |
488 | event_name = strtok(opt_event_list, ","); | |
489 | while (event_name != NULL) { | |
6181537c DG |
490 | /* Copy name and type of the event */ |
491 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
492 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
493 | ev.type = opt_event_type; | |
494 | ||
f3ed775e DG |
495 | /* Kernel tracer action */ |
496 | if (opt_kernel) { | |
497 | DBG("Enabling kernel event %s for channel %s", | |
85076754 MD |
498 | event_name, |
499 | print_channel_name(channel_name)); | |
f3ed775e DG |
500 | |
501 | switch (opt_event_type) { | |
7a3d1328 MD |
502 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ |
503 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
504 | /* Fall-through */ | |
e6ddca71 | 505 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 506 | break; |
7d29a247 | 507 | case LTTNG_EVENT_PROBE: |
cf0e5467 | 508 | ret = parse_probe_opts(&ev, opt_probe); |
0d63dd19 | 509 | if (ret < 0) { |
cf0e5467 | 510 | ERR("Unable to parse probe options"); |
0d63dd19 DG |
511 | ret = 0; |
512 | goto error; | |
513 | } | |
f3ed775e DG |
514 | break; |
515 | case LTTNG_EVENT_FUNCTION: | |
8f0d098b MD |
516 | ret = parse_probe_opts(&ev, opt_function); |
517 | if (ret < 0) { | |
518 | ERR("Unable to parse function probe options"); | |
519 | ret = 0; | |
520 | goto error; | |
521 | } | |
522 | break; | |
523 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
6181537c DG |
524 | strncpy(ev.attr.ftrace.symbol_name, opt_function_entry_symbol, |
525 | LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 526 | ev.attr.ftrace.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
f3ed775e | 527 | break; |
a54bd42d | 528 | case LTTNG_EVENT_SYSCALL: |
6181537c DG |
529 | MSG("per-syscall selection not supported yet. Use \"-a\" " |
530 | "for all syscalls."); | |
f3ed775e | 531 | default: |
1ab1ea0b | 532 | ret = CMD_UNDEFINED; |
f3ed775e DG |
533 | goto error; |
534 | } | |
0cda4f28 | 535 | |
ed7f4083 | 536 | if (opt_loglevel) { |
0cda4f28 | 537 | MSG("Kernel loglevels are not supported."); |
4ce78777 | 538 | ret = CMD_UNSUPPORTED; |
0cda4f28 MD |
539 | goto error; |
540 | } | |
541 | ||
542 | /* kernel loglevels not implemented */ | |
8005f29a | 543 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
f3ed775e | 544 | } else if (opt_userspace) { /* User-space tracer action */ |
d78d6610 | 545 | #if 0 |
e14f64a8 DG |
546 | if (opt_cmd_name != NULL || opt_pid) { |
547 | MSG("Only supporting tracing all UST processes (-u) for now."); | |
1ab1ea0b | 548 | ret = CMD_UNDEFINED; |
2bdd86d4 MD |
549 | goto error; |
550 | } | |
d78d6610 | 551 | #endif |
6181537c | 552 | |
300b8fd5 | 553 | DBG("Enabling UST event %s for channel %s, loglevel %s", event_name, |
85076754 | 554 | print_channel_name(channel_name), opt_loglevel ? : "<all>"); |
2bdd86d4 MD |
555 | |
556 | switch (opt_event_type) { | |
557 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
558 | /* Fall-through */ |
559 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e MD |
560 | /* Copy name and type of the event */ |
561 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
562 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
563 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 MD |
564 | break; |
565 | case LTTNG_EVENT_PROBE: | |
566 | case LTTNG_EVENT_FUNCTION: | |
567 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
568 | case LTTNG_EVENT_SYSCALL: | |
569 | default: | |
cc62c0c0 | 570 | ERR("Event type not available for user-space tracing"); |
4ce78777 | 571 | ret = CMD_UNSUPPORTED; |
2bdd86d4 MD |
572 | goto error; |
573 | } | |
0cda4f28 MD |
574 | |
575 | ev.loglevel_type = opt_loglevel_type; | |
ed7f4083 | 576 | if (opt_loglevel) { |
8005f29a MD |
577 | ev.loglevel = loglevel_str_to_value(opt_loglevel); |
578 | if (ev.loglevel == -1) { | |
579 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 580 | ret = -LTTNG_ERR_INVALID; |
8005f29a MD |
581 | goto error; |
582 | } | |
22e25b71 MD |
583 | } else { |
584 | ev.loglevel = -1; | |
ed7f4083 | 585 | } |
b9dfb167 DG |
586 | } else if (opt_jul) { |
587 | if (opt_event_type != LTTNG_EVENT_ALL && | |
588 | opt_event_type != LTTNG_EVENT_TRACEPOINT) { | |
589 | ERR("Event type not supported for JUL domain."); | |
590 | ret = CMD_UNSUPPORTED; | |
591 | goto error; | |
592 | } | |
593 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
594 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
595 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
f3ed775e | 596 | } else { |
b9dfb167 | 597 | print_missing_domain(); |
300b8fd5 | 598 | ret = CMD_ERROR; |
f3ed775e DG |
599 | goto error; |
600 | } | |
601 | ||
025faf73 DG |
602 | if (!opt_filter) { |
603 | ret = lttng_enable_event(handle, &ev, channel_name); | |
604 | if (ret < 0) { | |
605 | /* Turn ret to positive value to handle the positive error code */ | |
606 | switch (-ret) { | |
607 | case LTTNG_ERR_KERN_EVENT_EXIST: | |
608 | WARN("Kernel event %s already enabled (channel %s, session %s)", | |
85076754 MD |
609 | event_name, |
610 | print_channel_name(channel_name), session_name); | |
025faf73 DG |
611 | break; |
612 | default: | |
613 | ERR("Event %s: %s (channel %s, session %s)", event_name, | |
85076754 MD |
614 | lttng_strerror(ret), |
615 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
616 | ? print_raw_channel_name(channel_name) | |
617 | : print_channel_name(channel_name), | |
618 | session_name); | |
025faf73 DG |
619 | break; |
620 | } | |
621 | warn = 1; | |
622 | } else { | |
623 | MSG("%s event %s created in channel %s", | |
b9dfb167 | 624 | get_domain_str(dom.type), event_name, |
85076754 | 625 | print_channel_name(channel_name)); |
42224349 | 626 | } |
6181537c | 627 | } |
025faf73 DG |
628 | |
629 | if (opt_filter) { | |
630 | ret = lttng_enable_event_with_filter(handle, &ev, channel_name, | |
16363652 | 631 | opt_filter); |
53a80697 | 632 | if (ret < 0) { |
7671f53c CB |
633 | switch (-ret) { |
634 | case LTTNG_ERR_FILTER_EXIST: | |
ff7ef7b8 | 635 | WARN("Filter on event %s is already enabled" |
7671f53c | 636 | " (channel %s, session %s)", |
85076754 MD |
637 | event_name, |
638 | print_channel_name(channel_name), session_name); | |
7671f53c CB |
639 | break; |
640 | default: | |
85076754 MD |
641 | ERR("Event %s: %s (channel %s, session %s, filter \'%s\')", ev.name, |
642 | lttng_strerror(ret), | |
643 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
644 | ? print_raw_channel_name(channel_name) | |
645 | : print_channel_name(channel_name), | |
646 | session_name, opt_filter); | |
7671f53c CB |
647 | break; |
648 | } | |
53a80697 | 649 | goto error; |
16363652 DG |
650 | } else { |
651 | MSG("Filter '%s' successfully set", opt_filter); | |
53a80697 MD |
652 | } |
653 | } | |
6181537c | 654 | |
f3ed775e DG |
655 | /* Next event */ |
656 | event_name = strtok(NULL, ","); | |
657 | } | |
658 | ||
8c9ae521 | 659 | end: |
f3ed775e | 660 | error: |
ae856491 DG |
661 | if (warn) { |
662 | ret = CMD_WARNING; | |
663 | } | |
cd80958d DG |
664 | lttng_destroy_handle(handle); |
665 | ||
f3ed775e DG |
666 | return ret; |
667 | } | |
668 | ||
669 | /* | |
6181537c | 670 | * Add event to trace session |
f3ed775e DG |
671 | */ |
672 | int cmd_enable_events(int argc, const char **argv) | |
673 | { | |
ca1c3607 | 674 | int opt, ret = CMD_SUCCESS; |
f3ed775e | 675 | static poptContext pc; |
cd80958d | 676 | char *session_name = NULL; |
de044b7a | 677 | int event_type = -1; |
f3ed775e DG |
678 | |
679 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
680 | poptReadDefaultConfig(pc, 0); | |
681 | ||
682 | /* Default event type */ | |
7a3d1328 | 683 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
684 | |
685 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
686 | switch (opt) { | |
687 | case OPT_HELP: | |
ca1c3607 | 688 | usage(stdout); |
f3ed775e | 689 | goto end; |
f3ed775e | 690 | case OPT_TRACEPOINT: |
e6ddca71 | 691 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 692 | break; |
cf0e5467 | 693 | case OPT_PROBE: |
7d29a247 | 694 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e DG |
695 | break; |
696 | case OPT_FUNCTION: | |
697 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b MD |
698 | break; |
699 | case OPT_FUNCTION_ENTRY: | |
700 | opt_event_type = LTTNG_EVENT_FUNCTION_ENTRY; | |
f3ed775e | 701 | break; |
a54bd42d MD |
702 | case OPT_SYSCALL: |
703 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 704 | break; |
eeac7d46 MD |
705 | case OPT_USERSPACE: |
706 | opt_userspace = 1; | |
eeac7d46 | 707 | break; |
0cda4f28 | 708 | case OPT_LOGLEVEL: |
8005f29a | 709 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE; |
0cda4f28 MD |
710 | opt_loglevel = poptGetOptArg(pc); |
711 | break; | |
712 | case OPT_LOGLEVEL_ONLY: | |
8005f29a | 713 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE; |
0cda4f28 | 714 | opt_loglevel = poptGetOptArg(pc); |
13dce3b7 | 715 | break; |
679b4943 SM |
716 | case OPT_LIST_OPTIONS: |
717 | list_cmd_options(stdout, long_options); | |
679b4943 | 718 | goto end; |
53a80697 MD |
719 | case OPT_FILTER: |
720 | break; | |
f3ed775e DG |
721 | default: |
722 | usage(stderr); | |
723 | ret = CMD_UNDEFINED; | |
724 | goto end; | |
725 | } | |
de044b7a DG |
726 | |
727 | /* Validate event type. Multiple event type are not supported. */ | |
728 | if (event_type == -1) { | |
729 | event_type = opt_event_type; | |
730 | } else { | |
731 | if (event_type != opt_event_type) { | |
732 | ERR("Multiple event type not supported."); | |
733 | ret = CMD_ERROR; | |
734 | goto end; | |
735 | } | |
736 | } | |
f3ed775e DG |
737 | } |
738 | ||
739 | opt_event_list = (char*) poptGetArg(pc); | |
740 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
741 | ERR("Missing event name(s).\n"); | |
742 | usage(stderr); | |
ca1c3607 | 743 | ret = CMD_ERROR; |
f3ed775e DG |
744 | goto end; |
745 | } | |
746 | ||
cd80958d DG |
747 | if (!opt_session_name) { |
748 | session_name = get_session_name(); | |
749 | if (session_name == NULL) { | |
ca1c3607 | 750 | ret = CMD_ERROR; |
cd80958d DG |
751 | goto end; |
752 | } | |
753 | } else { | |
754 | session_name = opt_session_name; | |
755 | } | |
756 | ||
757 | ret = enable_events(session_name); | |
f3ed775e DG |
758 | |
759 | end: | |
cd80958d DG |
760 | if (opt_session_name == NULL) { |
761 | free(session_name); | |
762 | } | |
763 | ||
ca1c3607 | 764 | poptFreeContext(pc); |
f3ed775e DG |
765 | return ret; |
766 | } |