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 | ||
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 DG |
38 | static int opt_userspace; |
39 | static int opt_enable_all; | |
cf0e5467 | 40 | static char *opt_probe; |
8f0d098b MD |
41 | static char *opt_function; |
42 | static char *opt_function_entry_symbol; | |
f3ed775e | 43 | static char *opt_channel_name; |
53a80697 | 44 | static char *opt_filter; |
d78d6610 DG |
45 | #if 0 |
46 | /* Not implemented yet */ | |
47 | static char *opt_cmd_name; | |
48 | static pid_t opt_pid; | |
49 | #endif | |
f3ed775e DG |
50 | |
51 | enum { | |
52 | OPT_HELP = 1, | |
f3ed775e | 53 | OPT_TRACEPOINT, |
cf0e5467 | 54 | OPT_PROBE, |
f3ed775e | 55 | OPT_FUNCTION, |
8f0d098b | 56 | OPT_FUNCTION_ENTRY, |
a54bd42d | 57 | OPT_SYSCALL, |
eeac7d46 | 58 | OPT_USERSPACE, |
0cda4f28 MD |
59 | OPT_LOGLEVEL, |
60 | OPT_LOGLEVEL_ONLY, | |
679b4943 | 61 | OPT_LIST_OPTIONS, |
53a80697 | 62 | OPT_FILTER, |
f3ed775e DG |
63 | }; |
64 | ||
cd80958d DG |
65 | static struct lttng_handle *handle; |
66 | ||
f3ed775e DG |
67 | static struct poptOption long_options[] = { |
68 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
69 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 70 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e14f64a8 | 71 | {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0}, |
f3ed775e DG |
72 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
73 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, | |
d78d6610 DG |
74 | #if 0 |
75 | /* Not implemented yet */ | |
40e9d5d3 | 76 | {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0}, |
f3ed775e | 77 | {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, |
d78d6610 DG |
78 | #else |
79 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, | |
80 | #endif | |
f3ed775e | 81 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0}, |
7ebae521 | 82 | {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0}, |
40e9d5d3 | 83 | {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0}, |
b213d387 MD |
84 | #if 0 |
85 | /* | |
86 | * Currently removed from lttng kernel tracer. Removed from | |
87 | * lttng UI to discourage its use. | |
88 | */ | |
40e9d5d3 | 89 | {"function:entry", 0, POPT_ARG_STRING, &opt_function_entry_symbol, OPT_FUNCTION_ENTRY, 0, 0}, |
b213d387 | 90 | #endif |
7ebae521 | 91 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0}, |
0cda4f28 MD |
92 | {"loglevel", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL, 0, 0}, |
93 | {"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0}, | |
679b4943 | 94 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
53a80697 | 95 | {"filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0}, |
f3ed775e DG |
96 | {0, 0, 0, 0, 0, 0, 0} |
97 | }; | |
98 | ||
99 | /* | |
100 | * usage | |
101 | */ | |
102 | static void usage(FILE *ofp) | |
103 | { | |
104 | fprintf(ofp, "usage: lttng enable-event NAME[,NAME2,...] [options] [event_options]\n"); | |
105 | fprintf(ofp, "\n"); | |
106 | fprintf(ofp, " -h, --help Show this help\n"); | |
679b4943 | 107 | fprintf(ofp, " --list-options Simple listing of options\n"); |
27221701 DG |
108 | fprintf(ofp, " -s, --session Apply to session name\n"); |
109 | fprintf(ofp, " -c, --channel Apply to this channel\n"); | |
e08bff8d | 110 | fprintf(ofp, " -a, --all Enable all tracepoints and syscalls\n"); |
f3ed775e | 111 | fprintf(ofp, " -k, --kernel Apply for the kernel tracer\n"); |
d78d6610 | 112 | #if 0 |
27221701 | 113 | fprintf(ofp, " -u, --userspace [CMD] Apply to the user-space tracer\n"); |
e14f64a8 DG |
114 | fprintf(ofp, " If no CMD, the domain used is UST global\n"); |
115 | fprintf(ofp, " or else the domain is UST EXEC_NAME\n"); | |
116 | fprintf(ofp, " -p, --pid PID If -u, apply to specific PID (domain: UST PID)\n"); | |
d78d6610 | 117 | #else |
27221701 | 118 | fprintf(ofp, " -u, --userspace Apply to the user-space tracer\n"); |
d78d6610 | 119 | #endif |
f3ed775e DG |
120 | fprintf(ofp, "\n"); |
121 | fprintf(ofp, "Event options:\n"); | |
122 | fprintf(ofp, " --tracepoint Tracepoint event (default)\n"); | |
be49af1e MD |
123 | fprintf(ofp, " - userspace tracer supports wildcards at end of string.\n"); |
124 | fprintf(ofp, " Don't forget to quote to deal with bash expansion.\n"); | |
125 | fprintf(ofp, " e.g.:\n"); | |
126 | fprintf(ofp, " \"*\"\n"); | |
127 | fprintf(ofp, " \"app_component:na*\"\n"); | |
8f0d098b | 128 | fprintf(ofp, " --probe [addr | symbol | symbol+offset]\n"); |
cf0e5467 MD |
129 | fprintf(ofp, " Dynamic probe.\n"); |
130 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
131 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
8f0d098b MD |
132 | fprintf(ofp, " --function [addr | symbol | symbol+offset]\n"); |
133 | fprintf(ofp, " Dynamic function entry/return probe.\n"); | |
134 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
135 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
b213d387 | 136 | #if 0 |
8f0d098b MD |
137 | fprintf(ofp, " --function:entry symbol\n"); |
138 | fprintf(ofp, " Function tracer event\n"); | |
b213d387 | 139 | #endif |
a54bd42d | 140 | fprintf(ofp, " --syscall System call event\n"); |
f3ed775e | 141 | fprintf(ofp, "\n"); |
300b8fd5 MD |
142 | fprintf(ofp, " --loglevel name\n"); |
143 | fprintf(ofp, " Tracepoint loglevel range from 0 to loglevel\n"); | |
144 | fprintf(ofp, " --loglevel-only name\n"); | |
145 | fprintf(ofp, " Tracepoint loglevel (only this loglevel)\n"); | |
146 | fprintf(ofp, "\n"); | |
0c8477c8 MD |
147 | fprintf(ofp, " The loglevel or loglevel-only options should be\n"); |
148 | fprintf(ofp, " combined with a tracepoint name or tracepoint\n"); | |
149 | fprintf(ofp, " wildcard.\n"); | |
150 | fprintf(ofp, " Available loglevels:\n"); | |
151 | fprintf(ofp, " (higher value is more verbose)\n"); | |
46839cc2 MD |
152 | fprintf(ofp, " TRACE_EMERG = 0\n"); |
153 | fprintf(ofp, " TRACE_ALERT = 1\n"); | |
154 | fprintf(ofp, " TRACE_CRIT = 2\n"); | |
155 | fprintf(ofp, " TRACE_ERR = 3\n"); | |
156 | fprintf(ofp, " TRACE_WARNING = 4\n"); | |
157 | fprintf(ofp, " TRACE_NOTICE = 5\n"); | |
158 | fprintf(ofp, " TRACE_INFO = 6\n"); | |
159 | fprintf(ofp, " TRACE_DEBUG_SYSTEM = 7\n"); | |
160 | fprintf(ofp, " TRACE_DEBUG_PROGRAM = 8\n"); | |
161 | fprintf(ofp, " TRACE_DEBUG_PROCESS = 9\n"); | |
162 | fprintf(ofp, " TRACE_DEBUG_MODULE = 10\n"); | |
163 | fprintf(ofp, " TRACE_DEBUG_UNIT = 11\n"); | |
164 | fprintf(ofp, " TRACE_DEBUG_FUNCTION = 12\n"); | |
165 | fprintf(ofp, " TRACE_DEBUG_LINE = 13\n"); | |
166 | fprintf(ofp, " TRACE_DEBUG = 14\n"); | |
167 | fprintf(ofp, " (shortcuts such as \"system\" are allowed)\n"); | |
53a80697 MD |
168 | fprintf(ofp, " --filter \'expression\'\n"); |
169 | fprintf(ofp, " Filter expression on event fields,\n"); | |
170 | fprintf(ofp, " event recording depends on evaluation.\n"); | |
919e300c MD |
171 | fprintf(ofp, " Only specify on first activation of\n"); |
172 | fprintf(ofp, " a given event within a session.\n"); | |
173 | fprintf(ofp, " Filter only allowed when enabling\n"); | |
174 | fprintf(ofp, " events within a session before tracing\n"); | |
9bd578f5 MD |
175 | fprintf(ofp, " is started. If the filter fails to link\n"); |
176 | fprintf(ofp, " with the event within the traced domain,\n"); | |
177 | fprintf(ofp, " the event will be discarded. Currently,\n"); | |
178 | fprintf(ofp, " filter is only implemented for the user-space\n"); | |
179 | fprintf(ofp, " tracer.\n"); | |
180 | fprintf(ofp, " Expression examples:.\n"); | |
181 | fprintf(ofp, " \n"); | |
182 | fprintf(ofp, " 'intfield > 500 && intfield < 503'\n"); | |
183 | fprintf(ofp, " '(stringfield == \"test\" || intfield != 10) && intfield > 33'\n"); | |
184 | fprintf(ofp, " 'doublefield > 1.1 && intfield < 5.3'\n"); | |
185 | fprintf(ofp, " \n"); | |
186 | fprintf(ofp, " Wildcards are allowed at the end of strings:\n"); | |
187 | fprintf(ofp, " 'seqfield1 == \"te*\"'\n"); | |
188 | fprintf(ofp, " In string literals, the escape character is '\\'.\n"); | |
189 | fprintf(ofp, " Use '\\*' for the '*' character, and '\\\\' for\n"); | |
190 | fprintf(ofp, " the '\\' character.\n"); | |
300b8fd5 | 191 | fprintf(ofp, "\n"); |
f3ed775e DG |
192 | } |
193 | ||
0d63dd19 | 194 | /* |
6181537c | 195 | * Parse probe options. |
0d63dd19 | 196 | */ |
cf0e5467 | 197 | static int parse_probe_opts(struct lttng_event *ev, char *opt) |
0d63dd19 DG |
198 | { |
199 | int ret; | |
8ff0bbd0 | 200 | char s_hex[19]; |
0d63dd19 DG |
201 | char name[LTTNG_SYMBOL_NAME_LEN]; |
202 | ||
203 | if (opt == NULL) { | |
204 | ret = -1; | |
8f0d098b | 205 | goto end; |
0d63dd19 DG |
206 | } |
207 | ||
208 | /* Check for symbol+offset */ | |
8ff0bbd0 | 209 | ret = sscanf(opt, "%[^'+']+%s", name, s_hex); |
0d63dd19 | 210 | if (ret == 2) { |
7d29a247 | 211 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 212 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
cf0e5467 | 213 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
8ff0bbd0 DG |
214 | if (strlen(s_hex) == 0) { |
215 | ERR("Invalid probe offset %s", s_hex); | |
0d63dd19 | 216 | ret = -1; |
8f0d098b | 217 | goto end; |
0d63dd19 | 218 | } |
8ff0bbd0 | 219 | ev->attr.probe.offset = strtoul(s_hex, NULL, 0); |
cf0e5467 | 220 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); |
3000dc78 | 221 | ev->attr.probe.addr = 0; |
8f0d098b MD |
222 | goto end; |
223 | } | |
224 | ||
225 | /* Check for symbol */ | |
226 | if (isalpha(name[0])) { | |
227 | ret = sscanf(opt, "%s", name); | |
228 | if (ret == 1) { | |
229 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 230 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
8f0d098b MD |
231 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
232 | ev->attr.probe.offset = 0; | |
233 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); | |
234 | ev->attr.probe.addr = 0; | |
235 | goto end; | |
236 | } | |
0d63dd19 DG |
237 | } |
238 | ||
239 | /* Check for address */ | |
8ff0bbd0 | 240 | ret = sscanf(opt, "%s", s_hex); |
0d63dd19 | 241 | if (ret > 0) { |
8ff0bbd0 DG |
242 | if (strlen(s_hex) == 0) { |
243 | ERR("Invalid probe address %s", s_hex); | |
0d63dd19 | 244 | ret = -1; |
8f0d098b | 245 | goto end; |
0d63dd19 | 246 | } |
8ff0bbd0 | 247 | ev->attr.probe.addr = strtoul(s_hex, NULL, 0); |
cf0e5467 | 248 | DBG("probe addr %" PRIu64, ev->attr.probe.addr); |
3000dc78 DG |
249 | ev->attr.probe.offset = 0; |
250 | memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN); | |
8f0d098b | 251 | goto end; |
0d63dd19 DG |
252 | } |
253 | ||
254 | /* No match */ | |
255 | ret = -1; | |
256 | ||
8f0d098b | 257 | end: |
0d63dd19 DG |
258 | return ret; |
259 | } | |
260 | ||
8005f29a | 261 | /* |
0c8477c8 | 262 | * Maps loglevel from string to value |
8005f29a MD |
263 | */ |
264 | static | |
46839cc2 | 265 | int loglevel_str_to_value(const char *inputstr) |
8005f29a | 266 | { |
46839cc2 MD |
267 | int i = 0; |
268 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
269 | ||
270 | while (inputstr[i] != '\0' && i < LTTNG_SYMBOL_NAME_LEN) { | |
271 | str[i] = toupper(inputstr[i]); | |
272 | i++; | |
273 | } | |
274 | str[i] = '\0'; | |
275 | if (!strcmp(str, "TRACE_EMERG") || !strcmp(str, "EMERG")) { | |
276 | return LTTNG_LOGLEVEL_EMERG; | |
277 | } else if (!strcmp(str, "TRACE_ALERT") || !strcmp(str, "ALERT")) { | |
278 | return LTTNG_LOGLEVEL_ALERT; | |
279 | } else if (!strcmp(str, "TRACE_CRIT") || !strcmp(str, "CRIT")) { | |
280 | return LTTNG_LOGLEVEL_CRIT; | |
281 | } else if (!strcmp(str, "TRACE_ERR") || !strcmp(str, "ERR")) { | |
282 | return LTTNG_LOGLEVEL_ERR; | |
283 | } else if (!strcmp(str, "TRACE_WARNING") || !strcmp(str, "WARNING")) { | |
284 | return LTTNG_LOGLEVEL_WARNING; | |
285 | } else if (!strcmp(str, "TRACE_NOTICE") || !strcmp(str, "NOTICE")) { | |
286 | return LTTNG_LOGLEVEL_NOTICE; | |
287 | } else if (!strcmp(str, "TRACE_INFO") || !strcmp(str, "INFO")) { | |
288 | return LTTNG_LOGLEVEL_INFO; | |
289 | } else if (!strcmp(str, "TRACE_DEBUG_SYSTEM") || !strcmp(str, "DEBUG_SYSTEM") || !strcmp(str, "SYSTEM")) { | |
290 | return LTTNG_LOGLEVEL_DEBUG_SYSTEM; | |
291 | } else if (!strcmp(str, "TRACE_DEBUG_PROGRAM") || !strcmp(str, "DEBUG_PROGRAM") || !strcmp(str, "PROGRAM")) { | |
292 | return LTTNG_LOGLEVEL_DEBUG_PROGRAM; | |
293 | } else if (!strcmp(str, "TRACE_DEBUG_PROCESS") || !strcmp(str, "DEBUG_PROCESS") || !strcmp(str, "PROCESS")) { | |
294 | return LTTNG_LOGLEVEL_DEBUG_PROCESS; | |
295 | } else if (!strcmp(str, "TRACE_DEBUG_MODULE") || !strcmp(str, "DEBUG_MODULE") || !strcmp(str, "MODULE")) { | |
296 | return LTTNG_LOGLEVEL_DEBUG_MODULE; | |
297 | } else if (!strcmp(str, "TRACE_DEBUG_UNIT") || !strcmp(str, "DEBUG_UNIT") || !strcmp(str, "UNIT")) { | |
298 | return LTTNG_LOGLEVEL_DEBUG_UNIT; | |
299 | } else if (!strcmp(str, "TRACE_DEBUG_FUNCTION") || !strcmp(str, "DEBUG_FUNCTION") || !strcmp(str, "FUNCTION")) { | |
300 | return LTTNG_LOGLEVEL_DEBUG_FUNCTION; | |
301 | } else if (!strcmp(str, "TRACE_DEBUG_LINE") || !strcmp(str, "DEBUG_LINE") || !strcmp(str, "LINE")) { | |
302 | return LTTNG_LOGLEVEL_DEBUG_LINE; | |
303 | } else if (!strcmp(str, "TRACE_DEBUG") || !strcmp(str, "DEBUG")) { | |
304 | return LTTNG_LOGLEVEL_DEBUG; | |
8005f29a MD |
305 | } else { |
306 | return -1; | |
307 | } | |
308 | } | |
309 | ||
f3ed775e | 310 | /* |
6181537c | 311 | * Enabling event using the lttng API. |
f3ed775e | 312 | */ |
cd80958d | 313 | static int enable_events(char *session_name) |
f3ed775e | 314 | { |
ae856491 | 315 | int err, ret = CMD_SUCCESS, warn = 0; |
b73d0b29 | 316 | char *event_name, *channel_name = NULL; |
f3ed775e | 317 | struct lttng_event ev; |
7d29a247 | 318 | struct lttng_domain dom; |
f3ed775e | 319 | |
441c16a7 MD |
320 | memset(&ev, 0, sizeof(ev)); |
321 | memset(&dom, 0, sizeof(dom)); | |
322 | ||
53a80697 MD |
323 | if (opt_kernel) { |
324 | if (opt_filter) { | |
325 | ERR("Filter not implement for kernel tracing yet"); | |
326 | ret = CMD_ERROR; | |
327 | goto error; | |
328 | } | |
329 | } | |
330 | ||
7d29a247 DG |
331 | /* Create lttng domain */ |
332 | if (opt_kernel) { | |
333 | dom.type = LTTNG_DOMAIN_KERNEL; | |
d78d6610 | 334 | } else if (opt_userspace) { |
2bdd86d4 | 335 | dom.type = LTTNG_DOMAIN_UST; |
6181537c | 336 | } else { |
e14f64a8 | 337 | ERR("Please specify a tracer (-k/--kernel or -u/--userspace)"); |
d16c1a4c | 338 | ret = CMD_ERROR; |
6181537c | 339 | goto error; |
2bdd86d4 | 340 | } |
7d29a247 | 341 | |
ae856491 DG |
342 | if (opt_channel_name == NULL) { |
343 | err = asprintf(&channel_name, DEFAULT_CHANNEL_NAME); | |
344 | if (err < 0) { | |
345 | ret = CMD_FATAL; | |
346 | goto error; | |
347 | } | |
348 | } else { | |
349 | channel_name = opt_channel_name; | |
350 | } | |
351 | ||
cd80958d DG |
352 | handle = lttng_create_handle(session_name, &dom); |
353 | if (handle == NULL) { | |
354 | ret = -1; | |
355 | goto error; | |
356 | } | |
1aef21b6 | 357 | |
cd80958d | 358 | if (opt_enable_all) { |
8c9ae521 | 359 | /* Default setup for enable all */ |
75e8c5ab MD |
360 | if (opt_kernel) { |
361 | ev.type = opt_event_type; | |
362 | ev.name[0] = '\0'; | |
300b8fd5 MD |
363 | /* kernel loglevels not implemented */ |
364 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; | |
75e8c5ab MD |
365 | } else { |
366 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
367 | strcpy(ev.name, "*"); | |
300b8fd5 MD |
368 | ev.loglevel_type = opt_loglevel_type; |
369 | if (opt_loglevel) { | |
370 | ev.loglevel = loglevel_str_to_value(opt_loglevel); | |
371 | if (ev.loglevel == -1) { | |
372 | ERR("Unknown loglevel %s", opt_loglevel); | |
373 | ret = -1; | |
374 | goto error; | |
375 | } | |
22e25b71 MD |
376 | } else { |
377 | ev.loglevel = -1; | |
300b8fd5 | 378 | } |
75e8c5ab | 379 | } |
8c9ae521 DG |
380 | |
381 | ret = lttng_enable_event(handle, &ev, channel_name); | |
382 | if (ret < 0) { | |
42224349 DG |
383 | switch (-ret) { |
384 | case LTTCOMM_KERN_EVENT_EXIST: | |
385 | WARN("Kernel events already enabled (channel %s, session %s)", | |
386 | channel_name, session_name); | |
6d805133 | 387 | break; |
42224349 | 388 | default: |
a6de644c | 389 | ERR("Events: %s (channel %s, session %s)", |
42224349 DG |
390 | lttng_strerror(ret), channel_name, session_name); |
391 | break; | |
392 | } | |
6d805133 | 393 | goto end; |
8c9ae521 | 394 | } |
53a80697 MD |
395 | if (opt_filter) { |
396 | ret = lttng_set_event_filter(handle, ev.name, channel_name, | |
397 | opt_filter); | |
398 | if (ret < 0) { | |
399 | ERR("Error setting filter"); | |
400 | ret = -1; | |
401 | goto error; | |
402 | } | |
403 | } | |
8c9ae521 | 404 | |
0133c199 MD |
405 | switch (opt_event_type) { |
406 | case LTTNG_EVENT_TRACEPOINT: | |
57064ada MD |
407 | if (opt_loglevel) { |
408 | MSG("All %s tracepoints are enabled in channel %s for loglevel %s", | |
409 | opt_kernel ? "kernel" : "UST", channel_name, | |
410 | opt_loglevel); | |
411 | } else { | |
412 | MSG("All %s tracepoints are enabled in channel %s", | |
413 | opt_kernel ? "kernel" : "UST", channel_name); | |
414 | ||
415 | } | |
0133c199 | 416 | break; |
a54bd42d | 417 | case LTTNG_EVENT_SYSCALL: |
0133c199 | 418 | if (opt_kernel) { |
8c9ae521 DG |
419 | MSG("All kernel system calls are enabled in channel %s", |
420 | channel_name); | |
c93d9daf | 421 | } |
0133c199 | 422 | break; |
7a3d1328 | 423 | case LTTNG_EVENT_ALL: |
57064ada MD |
424 | if (opt_loglevel) { |
425 | MSG("All %s events are enabled in channel %s for loglevel %s", | |
426 | opt_kernel ? "kernel" : "UST", channel_name, | |
427 | opt_loglevel); | |
428 | } else { | |
429 | MSG("All %s events are enabled in channel %s", | |
430 | opt_kernel ? "kernel" : "UST", channel_name); | |
431 | } | |
7a3d1328 | 432 | break; |
0133c199 | 433 | default: |
8c9ae521 | 434 | /* |
6181537c DG |
435 | * We should not be here since lttng_enable_event should have |
436 | * failed on the event type. | |
8c9ae521 | 437 | */ |
f3ed775e DG |
438 | goto error; |
439 | } | |
8c9ae521 | 440 | goto end; |
f3ed775e DG |
441 | } |
442 | ||
443 | /* Strip event list */ | |
444 | event_name = strtok(opt_event_list, ","); | |
445 | while (event_name != NULL) { | |
6181537c DG |
446 | /* Copy name and type of the event */ |
447 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
448 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
449 | ev.type = opt_event_type; | |
450 | ||
f3ed775e DG |
451 | /* Kernel tracer action */ |
452 | if (opt_kernel) { | |
453 | DBG("Enabling kernel event %s for channel %s", | |
454 | event_name, channel_name); | |
f3ed775e DG |
455 | |
456 | switch (opt_event_type) { | |
7a3d1328 MD |
457 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ |
458 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
459 | /* Fall-through */ | |
e6ddca71 | 460 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 461 | break; |
7d29a247 | 462 | case LTTNG_EVENT_PROBE: |
cf0e5467 | 463 | ret = parse_probe_opts(&ev, opt_probe); |
0d63dd19 | 464 | if (ret < 0) { |
cf0e5467 | 465 | ERR("Unable to parse probe options"); |
0d63dd19 DG |
466 | ret = 0; |
467 | goto error; | |
468 | } | |
f3ed775e DG |
469 | break; |
470 | case LTTNG_EVENT_FUNCTION: | |
8f0d098b MD |
471 | ret = parse_probe_opts(&ev, opt_function); |
472 | if (ret < 0) { | |
473 | ERR("Unable to parse function probe options"); | |
474 | ret = 0; | |
475 | goto error; | |
476 | } | |
477 | break; | |
478 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
6181537c DG |
479 | strncpy(ev.attr.ftrace.symbol_name, opt_function_entry_symbol, |
480 | LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 481 | ev.attr.ftrace.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
f3ed775e | 482 | break; |
a54bd42d | 483 | case LTTNG_EVENT_SYSCALL: |
6181537c DG |
484 | MSG("per-syscall selection not supported yet. Use \"-a\" " |
485 | "for all syscalls."); | |
f3ed775e | 486 | default: |
1ab1ea0b | 487 | ret = CMD_UNDEFINED; |
f3ed775e DG |
488 | goto error; |
489 | } | |
0cda4f28 | 490 | |
ed7f4083 | 491 | if (opt_loglevel) { |
0cda4f28 MD |
492 | MSG("Kernel loglevels are not supported."); |
493 | ret = CMD_UNDEFINED; | |
494 | goto error; | |
495 | } | |
496 | ||
497 | /* kernel loglevels not implemented */ | |
8005f29a | 498 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
f3ed775e | 499 | } else if (opt_userspace) { /* User-space tracer action */ |
d78d6610 | 500 | #if 0 |
e14f64a8 DG |
501 | if (opt_cmd_name != NULL || opt_pid) { |
502 | MSG("Only supporting tracing all UST processes (-u) for now."); | |
1ab1ea0b | 503 | ret = CMD_UNDEFINED; |
2bdd86d4 MD |
504 | goto error; |
505 | } | |
d78d6610 | 506 | #endif |
6181537c | 507 | |
300b8fd5 MD |
508 | DBG("Enabling UST event %s for channel %s, loglevel %s", event_name, |
509 | channel_name, opt_loglevel ? : "<all>"); | |
2bdd86d4 MD |
510 | |
511 | switch (opt_event_type) { | |
512 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
513 | /* Fall-through */ |
514 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e MD |
515 | /* Copy name and type of the event */ |
516 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
517 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
518 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 MD |
519 | break; |
520 | case LTTNG_EVENT_PROBE: | |
521 | case LTTNG_EVENT_FUNCTION: | |
522 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
523 | case LTTNG_EVENT_SYSCALL: | |
524 | default: | |
cc62c0c0 | 525 | ERR("Event type not available for user-space tracing"); |
1ab1ea0b | 526 | ret = CMD_UNDEFINED; |
2bdd86d4 MD |
527 | goto error; |
528 | } | |
0cda4f28 MD |
529 | |
530 | ev.loglevel_type = opt_loglevel_type; | |
ed7f4083 | 531 | if (opt_loglevel) { |
8005f29a MD |
532 | ev.loglevel = loglevel_str_to_value(opt_loglevel); |
533 | if (ev.loglevel == -1) { | |
534 | ERR("Unknown loglevel %s", opt_loglevel); | |
300b8fd5 | 535 | ret = -1; |
8005f29a MD |
536 | goto error; |
537 | } | |
22e25b71 MD |
538 | } else { |
539 | ev.loglevel = -1; | |
ed7f4083 | 540 | } |
f3ed775e | 541 | } else { |
e14f64a8 | 542 | ERR("Please specify a tracer (-k/--kernel or -u/--userspace)"); |
300b8fd5 | 543 | ret = CMD_ERROR; |
f3ed775e DG |
544 | goto error; |
545 | } | |
546 | ||
6181537c | 547 | ret = lttng_enable_event(handle, &ev, channel_name); |
ae856491 | 548 | if (ret < 0) { |
42224349 DG |
549 | /* Turn ret to positive value to handle the positive error code */ |
550 | switch (-ret) { | |
551 | case LTTCOMM_KERN_EVENT_EXIST: | |
552 | WARN("Kernel event %s already enabled (channel %s, session %s)", | |
553 | event_name, channel_name, session_name); | |
554 | break; | |
555 | default: | |
556 | ERR("Event %s: %s (channel %s, session %s)", event_name, | |
557 | lttng_strerror(ret), channel_name, session_name); | |
558 | break; | |
559 | } | |
ae856491 DG |
560 | warn = 1; |
561 | } else { | |
6181537c DG |
562 | MSG("%s event %s created in channel %s", |
563 | opt_kernel ? "kernel": "UST", event_name, channel_name); | |
564 | } | |
53a80697 MD |
565 | if (opt_filter) { |
566 | ret = lttng_set_event_filter(handle, ev.name, | |
567 | channel_name, opt_filter); | |
568 | if (ret < 0) { | |
569 | ERR("Error setting filter"); | |
570 | ret = -1; | |
571 | goto error; | |
572 | } | |
573 | } | |
6181537c | 574 | |
f3ed775e DG |
575 | /* Next event */ |
576 | event_name = strtok(NULL, ","); | |
577 | } | |
578 | ||
8c9ae521 | 579 | end: |
f3ed775e | 580 | error: |
ae856491 DG |
581 | if (warn) { |
582 | ret = CMD_WARNING; | |
583 | } | |
b73d0b29 MD |
584 | if (opt_channel_name == NULL) { |
585 | free(channel_name); | |
586 | } | |
cd80958d DG |
587 | lttng_destroy_handle(handle); |
588 | ||
f3ed775e DG |
589 | return ret; |
590 | } | |
591 | ||
592 | /* | |
6181537c | 593 | * Add event to trace session |
f3ed775e DG |
594 | */ |
595 | int cmd_enable_events(int argc, const char **argv) | |
596 | { | |
ca1c3607 | 597 | int opt, ret = CMD_SUCCESS; |
f3ed775e | 598 | static poptContext pc; |
cd80958d | 599 | char *session_name = NULL; |
f3ed775e DG |
600 | |
601 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
602 | poptReadDefaultConfig(pc, 0); | |
603 | ||
604 | /* Default event type */ | |
7a3d1328 | 605 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
606 | |
607 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
608 | switch (opt) { | |
609 | case OPT_HELP: | |
ca1c3607 | 610 | usage(stdout); |
f3ed775e | 611 | goto end; |
f3ed775e | 612 | case OPT_TRACEPOINT: |
e6ddca71 | 613 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 614 | break; |
cf0e5467 | 615 | case OPT_PROBE: |
7d29a247 | 616 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e DG |
617 | break; |
618 | case OPT_FUNCTION: | |
619 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b MD |
620 | break; |
621 | case OPT_FUNCTION_ENTRY: | |
622 | opt_event_type = LTTNG_EVENT_FUNCTION_ENTRY; | |
f3ed775e | 623 | break; |
a54bd42d MD |
624 | case OPT_SYSCALL: |
625 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 626 | break; |
eeac7d46 MD |
627 | case OPT_USERSPACE: |
628 | opt_userspace = 1; | |
eeac7d46 | 629 | break; |
0cda4f28 | 630 | case OPT_LOGLEVEL: |
8005f29a | 631 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE; |
0cda4f28 MD |
632 | opt_loglevel = poptGetOptArg(pc); |
633 | break; | |
634 | case OPT_LOGLEVEL_ONLY: | |
8005f29a | 635 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE; |
0cda4f28 | 636 | opt_loglevel = poptGetOptArg(pc); |
13dce3b7 | 637 | break; |
679b4943 SM |
638 | case OPT_LIST_OPTIONS: |
639 | list_cmd_options(stdout, long_options); | |
679b4943 | 640 | goto end; |
53a80697 MD |
641 | case OPT_FILTER: |
642 | break; | |
f3ed775e DG |
643 | default: |
644 | usage(stderr); | |
645 | ret = CMD_UNDEFINED; | |
646 | goto end; | |
647 | } | |
648 | } | |
649 | ||
650 | opt_event_list = (char*) poptGetArg(pc); | |
651 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
652 | ERR("Missing event name(s).\n"); | |
653 | usage(stderr); | |
ca1c3607 | 654 | ret = CMD_ERROR; |
f3ed775e DG |
655 | goto end; |
656 | } | |
657 | ||
cd80958d DG |
658 | if (!opt_session_name) { |
659 | session_name = get_session_name(); | |
660 | if (session_name == NULL) { | |
ca1c3607 | 661 | ret = CMD_ERROR; |
cd80958d DG |
662 | goto end; |
663 | } | |
664 | } else { | |
665 | session_name = opt_session_name; | |
666 | } | |
667 | ||
668 | ret = enable_events(session_name); | |
f3ed775e DG |
669 | |
670 | end: | |
cd80958d DG |
671 | if (opt_session_name == NULL) { |
672 | free(session_name); | |
673 | } | |
674 | ||
ca1c3607 | 675 | poptFreeContext(pc); |
f3ed775e DG |
676 | return ret; |
677 | } |