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 | |
b2064f54 | 19 | #include <assert.h> |
f3ed775e DG |
20 | #include <popt.h> |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <sys/stat.h> | |
25 | #include <sys/types.h> | |
26 | #include <unistd.h> | |
5a0de755 | 27 | #include <inttypes.h> |
8f0d098b | 28 | #include <ctype.h> |
f3ed775e | 29 | |
42224349 | 30 | #include <src/common/sessiond-comm/sessiond-comm.h> |
f3ed775e | 31 | |
89476427 JRJ |
32 | /* Mi dependancy */ |
33 | #include <common/mi-lttng.h> | |
34 | ||
35 | #include "../command.h" | |
36 | ||
8ab7c0d9 MD |
37 | #if (LTTNG_SYMBOL_NAME_LEN == 256) |
38 | #define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255" | |
39 | #endif | |
40 | ||
f3ed775e DG |
41 | static char *opt_event_list; |
42 | static int opt_event_type; | |
0cda4f28 MD |
43 | static const char *opt_loglevel; |
44 | static int opt_loglevel_type; | |
6181537c | 45 | static int opt_kernel; |
5440dc42 | 46 | static char *opt_session_name; |
f3ed775e | 47 | static int opt_userspace; |
b9dfb167 | 48 | static int opt_jul; |
f3ed775e | 49 | static int opt_enable_all; |
cf0e5467 | 50 | static char *opt_probe; |
8f0d098b MD |
51 | static char *opt_function; |
52 | static char *opt_function_entry_symbol; | |
f3ed775e | 53 | static char *opt_channel_name; |
53a80697 | 54 | static char *opt_filter; |
fac3366c | 55 | static char *opt_exclude; |
d78d6610 DG |
56 | #if 0 |
57 | /* Not implemented yet */ | |
58 | static char *opt_cmd_name; | |
59 | static pid_t opt_pid; | |
60 | #endif | |
f3ed775e DG |
61 | |
62 | enum { | |
63 | OPT_HELP = 1, | |
f3ed775e | 64 | OPT_TRACEPOINT, |
cf0e5467 | 65 | OPT_PROBE, |
f3ed775e | 66 | OPT_FUNCTION, |
8f0d098b | 67 | OPT_FUNCTION_ENTRY, |
a54bd42d | 68 | OPT_SYSCALL, |
eeac7d46 | 69 | OPT_USERSPACE, |
0cda4f28 MD |
70 | OPT_LOGLEVEL, |
71 | OPT_LOGLEVEL_ONLY, | |
679b4943 | 72 | OPT_LIST_OPTIONS, |
53a80697 | 73 | OPT_FILTER, |
fac3366c | 74 | OPT_EXCLUDE, |
f3ed775e DG |
75 | }; |
76 | ||
cd80958d | 77 | static struct lttng_handle *handle; |
89476427 | 78 | static struct mi_writer *writer; |
cd80958d | 79 | |
f3ed775e DG |
80 | static struct poptOption long_options[] = { |
81 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
82 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 83 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e14f64a8 | 84 | {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0}, |
f3ed775e DG |
85 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
86 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, | |
d78d6610 | 87 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, |
b9dfb167 | 88 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
f3ed775e | 89 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0}, |
7ebae521 | 90 | {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0}, |
40e9d5d3 | 91 | {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0}, |
b213d387 MD |
92 | #if 0 |
93 | /* | |
94 | * Currently removed from lttng kernel tracer. Removed from | |
95 | * lttng UI to discourage its use. | |
96 | */ | |
40e9d5d3 | 97 | {"function:entry", 0, POPT_ARG_STRING, &opt_function_entry_symbol, OPT_FUNCTION_ENTRY, 0, 0}, |
b213d387 | 98 | #endif |
7ebae521 | 99 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0}, |
0cda4f28 MD |
100 | {"loglevel", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL, 0, 0}, |
101 | {"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0}, | |
679b4943 | 102 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
53a80697 | 103 | {"filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0}, |
fac3366c | 104 | {"exclude", 'x', POPT_ARG_STRING, &opt_exclude, OPT_EXCLUDE, 0, 0}, |
f3ed775e DG |
105 | {0, 0, 0, 0, 0, 0, 0} |
106 | }; | |
107 | ||
108 | /* | |
109 | * usage | |
110 | */ | |
111 | static void usage(FILE *ofp) | |
112 | { | |
32a6298d | 113 | fprintf(ofp, "usage: lttng enable-event NAME[,NAME2,...] [-k|-u] [OPTIONS] \n"); |
f3ed775e | 114 | fprintf(ofp, "\n"); |
32a6298d | 115 | fprintf(ofp, "Options:\n"); |
f3ed775e | 116 | fprintf(ofp, " -h, --help Show this help\n"); |
679b4943 | 117 | fprintf(ofp, " --list-options Simple listing of options\n"); |
32a6298d DG |
118 | fprintf(ofp, " -s, --session NAME Apply to session name\n"); |
119 | fprintf(ofp, " -c, --channel NAME Apply to this channel\n"); | |
e08bff8d | 120 | fprintf(ofp, " -a, --all Enable all tracepoints and syscalls\n"); |
f3ed775e | 121 | fprintf(ofp, " -k, --kernel Apply for the kernel tracer\n"); |
27221701 | 122 | fprintf(ofp, " -u, --userspace Apply to the user-space tracer\n"); |
b9dfb167 | 123 | fprintf(ofp, " -j, --jul Apply for Java application using JUL\n"); |
f3ed775e DG |
124 | fprintf(ofp, "\n"); |
125 | fprintf(ofp, "Event options:\n"); | |
126 | fprintf(ofp, " --tracepoint Tracepoint event (default)\n"); | |
be49af1e MD |
127 | fprintf(ofp, " - userspace tracer supports wildcards at end of string.\n"); |
128 | fprintf(ofp, " Don't forget to quote to deal with bash expansion.\n"); | |
129 | fprintf(ofp, " e.g.:\n"); | |
130 | fprintf(ofp, " \"*\"\n"); | |
131 | fprintf(ofp, " \"app_component:na*\"\n"); | |
6a240cd9 | 132 | fprintf(ofp, " --probe (addr | symbol | symbol+offset)\n"); |
cf0e5467 MD |
133 | fprintf(ofp, " Dynamic probe.\n"); |
134 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
135 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
6a240cd9 | 136 | fprintf(ofp, " --function (addr | symbol | symbol+offset)\n"); |
8f0d098b MD |
137 | fprintf(ofp, " Dynamic function entry/return probe.\n"); |
138 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
139 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
b213d387 | 140 | #if 0 |
8f0d098b MD |
141 | fprintf(ofp, " --function:entry symbol\n"); |
142 | fprintf(ofp, " Function tracer event\n"); | |
b213d387 | 143 | #endif |
a54bd42d | 144 | fprintf(ofp, " --syscall System call event\n"); |
f3ed775e | 145 | fprintf(ofp, "\n"); |
300b8fd5 | 146 | fprintf(ofp, " --loglevel name\n"); |
f9e8873b DG |
147 | fprintf(ofp, " Tracepoint loglevel range from 0 to loglevel.\n"); |
148 | fprintf(ofp, " For JUL domain, see the table below for the range values.\n"); | |
300b8fd5 MD |
149 | fprintf(ofp, " --loglevel-only name\n"); |
150 | fprintf(ofp, " Tracepoint loglevel (only this loglevel)\n"); | |
151 | fprintf(ofp, "\n"); | |
0c8477c8 MD |
152 | fprintf(ofp, " The loglevel or loglevel-only options should be\n"); |
153 | fprintf(ofp, " combined with a tracepoint name or tracepoint\n"); | |
154 | fprintf(ofp, " wildcard.\n"); | |
155 | fprintf(ofp, " Available loglevels:\n"); | |
156 | fprintf(ofp, " (higher value is more verbose)\n"); | |
46839cc2 MD |
157 | fprintf(ofp, " TRACE_EMERG = 0\n"); |
158 | fprintf(ofp, " TRACE_ALERT = 1\n"); | |
159 | fprintf(ofp, " TRACE_CRIT = 2\n"); | |
160 | fprintf(ofp, " TRACE_ERR = 3\n"); | |
161 | fprintf(ofp, " TRACE_WARNING = 4\n"); | |
162 | fprintf(ofp, " TRACE_NOTICE = 5\n"); | |
163 | fprintf(ofp, " TRACE_INFO = 6\n"); | |
164 | fprintf(ofp, " TRACE_DEBUG_SYSTEM = 7\n"); | |
165 | fprintf(ofp, " TRACE_DEBUG_PROGRAM = 8\n"); | |
166 | fprintf(ofp, " TRACE_DEBUG_PROCESS = 9\n"); | |
167 | fprintf(ofp, " TRACE_DEBUG_MODULE = 10\n"); | |
168 | fprintf(ofp, " TRACE_DEBUG_UNIT = 11\n"); | |
169 | fprintf(ofp, " TRACE_DEBUG_FUNCTION = 12\n"); | |
170 | fprintf(ofp, " TRACE_DEBUG_LINE = 13\n"); | |
171 | fprintf(ofp, " TRACE_DEBUG = 14\n"); | |
172 | fprintf(ofp, " (shortcuts such as \"system\" are allowed)\n"); | |
b2064f54 DG |
173 | fprintf(ofp, "\n"); |
174 | fprintf(ofp, " Available JUL domain loglevels:\n"); | |
175 | fprintf(ofp, " JUL_OFF = INT32_MAX\n"); | |
176 | fprintf(ofp, " JUL_SEVERE = %d\n", LTTNG_LOGLEVEL_JUL_SEVERE); | |
177 | fprintf(ofp, " JUL_WARNING = %d\n", LTTNG_LOGLEVEL_JUL_WARNING); | |
178 | fprintf(ofp, " JUL_INFO = %d\n", LTTNG_LOGLEVEL_JUL_INFO); | |
179 | fprintf(ofp, " JUL_CONFIG = %d\n", LTTNG_LOGLEVEL_JUL_CONFIG); | |
180 | fprintf(ofp, " JUL_FINE = %d\n", LTTNG_LOGLEVEL_JUL_FINE); | |
181 | fprintf(ofp, " JUL_FINER = %d\n", LTTNG_LOGLEVEL_JUL_FINER); | |
182 | fprintf(ofp, " JUL_FINEST = %d\n", LTTNG_LOGLEVEL_JUL_FINEST); | |
183 | fprintf(ofp, " JUL_ALL = INT32_MIN\n"); | |
184 | fprintf(ofp, " (shortcuts such as \"severe\" are allowed)\n"); | |
185 | fprintf(ofp, "\n"); | |
f2611ab0 | 186 | fprintf(ofp, " -f, --filter \'expression\'\n"); |
ee8ccafa MD |
187 | fprintf(ofp, " Filter expression on event fields and context.\n"); |
188 | fprintf(ofp, " Event recording depends on evaluation.\n"); | |
919e300c MD |
189 | fprintf(ofp, " Only specify on first activation of\n"); |
190 | fprintf(ofp, " a given event within a session.\n"); | |
191 | fprintf(ofp, " Filter only allowed when enabling\n"); | |
192 | fprintf(ofp, " events within a session before tracing\n"); | |
9bd578f5 MD |
193 | fprintf(ofp, " is started. If the filter fails to link\n"); |
194 | fprintf(ofp, " with the event within the traced domain,\n"); | |
195 | fprintf(ofp, " the event will be discarded. Currently,\n"); | |
196 | fprintf(ofp, " filter is only implemented for the user-space\n"); | |
197 | fprintf(ofp, " tracer.\n"); | |
198 | fprintf(ofp, " Expression examples:.\n"); | |
199 | fprintf(ofp, " \n"); | |
200 | fprintf(ofp, " 'intfield > 500 && intfield < 503'\n"); | |
6a240cd9 | 201 | fprintf(ofp, " '(strfield == \"test\" || intfield != 10) && intfield > 33'\n"); |
9bd578f5 MD |
202 | fprintf(ofp, " 'doublefield > 1.1 && intfield < 5.3'\n"); |
203 | fprintf(ofp, " \n"); | |
204 | fprintf(ofp, " Wildcards are allowed at the end of strings:\n"); | |
205 | fprintf(ofp, " 'seqfield1 == \"te*\"'\n"); | |
206 | fprintf(ofp, " In string literals, the escape character is '\\'.\n"); | |
207 | fprintf(ofp, " Use '\\*' for the '*' character, and '\\\\' for\n"); | |
ee8ccafa MD |
208 | fprintf(ofp, " the '\\' character. Wildcard match any sequence of,\n"); |
209 | fprintf(ofp, " characters including an empty sub-string (match 0 or\n"); | |
210 | fprintf(ofp, " more characters).\n"); | |
211 | fprintf(ofp, "\n"); | |
212 | fprintf(ofp, " Context information can be used for filtering. The\n"); | |
213 | fprintf(ofp, " examples below show usage of context filtering on\n"); | |
214 | fprintf(ofp, " process name (with a wildcard), process ID range, and\n"); | |
215 | fprintf(ofp, " unique thread ID for filtering. The process and\n"); | |
216 | fprintf(ofp, " thread ID of running applications can be found under\n"); | |
217 | fprintf(ofp, " columns \"PID\" and \"LWP\" of the \"ps -eLf\" command.\n"); | |
218 | fprintf(ofp, "\n"); | |
219 | fprintf(ofp, " '$ctx.procname == \"demo*\"'\n"); | |
220 | fprintf(ofp, " '$ctx.vpid >= 4433 && $ctx.vpid < 4455'\n"); | |
221 | fprintf(ofp, " '$ctx.vtid == 1234'\n"); | |
c2063d0b JI |
222 | fprintf(ofp, " -x, --exclude LIST\n"); |
223 | fprintf(ofp, " Add exclusions to UST tracepoints:\n"); | |
224 | fprintf(ofp, " Events that match any of the items\n"); | |
225 | fprintf(ofp, " in the comma-separated LIST are not\n"); | |
226 | fprintf(ofp, " enabled, even if they match a wildcard\n"); | |
227 | fprintf(ofp, " definition of the event.\n"); | |
300b8fd5 | 228 | fprintf(ofp, "\n"); |
f3ed775e DG |
229 | } |
230 | ||
0d63dd19 | 231 | /* |
6181537c | 232 | * Parse probe options. |
0d63dd19 | 233 | */ |
cf0e5467 | 234 | static int parse_probe_opts(struct lttng_event *ev, char *opt) |
0d63dd19 DG |
235 | { |
236 | int ret; | |
8ff0bbd0 | 237 | char s_hex[19]; |
8ab7c0d9 | 238 | #define S_HEX_LEN_SCANF_IS_A_BROKEN_API "18" /* 18 is (19 - 1) (\0 is extra) */ |
0d63dd19 DG |
239 | char name[LTTNG_SYMBOL_NAME_LEN]; |
240 | ||
241 | if (opt == NULL) { | |
242 | ret = -1; | |
8f0d098b | 243 | goto end; |
0d63dd19 DG |
244 | } |
245 | ||
246 | /* Check for symbol+offset */ | |
8ab7c0d9 MD |
247 | ret = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API |
248 | "[^'+']+%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", name, s_hex); | |
0d63dd19 | 249 | if (ret == 2) { |
7d29a247 | 250 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 251 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
cf0e5467 | 252 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
9d035200 | 253 | if (*s_hex == '\0') { |
8ff0bbd0 | 254 | ERR("Invalid probe offset %s", s_hex); |
0d63dd19 | 255 | ret = -1; |
8f0d098b | 256 | goto end; |
0d63dd19 | 257 | } |
8ff0bbd0 | 258 | ev->attr.probe.offset = strtoul(s_hex, NULL, 0); |
cf0e5467 | 259 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); |
3000dc78 | 260 | ev->attr.probe.addr = 0; |
8f0d098b MD |
261 | goto end; |
262 | } | |
263 | ||
264 | /* Check for symbol */ | |
265 | if (isalpha(name[0])) { | |
8ab7c0d9 MD |
266 | ret = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s", |
267 | name); | |
8f0d098b MD |
268 | if (ret == 1) { |
269 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 270 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
8f0d098b MD |
271 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
272 | ev->attr.probe.offset = 0; | |
273 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); | |
274 | ev->attr.probe.addr = 0; | |
275 | goto end; | |
276 | } | |
0d63dd19 DG |
277 | } |
278 | ||
279 | /* Check for address */ | |
8ab7c0d9 | 280 | ret = sscanf(opt, "%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", s_hex); |
0d63dd19 | 281 | if (ret > 0) { |
9d035200 | 282 | if (*s_hex == '\0') { |
8ff0bbd0 | 283 | ERR("Invalid probe address %s", s_hex); |
0d63dd19 | 284 | ret = -1; |
8f0d098b | 285 | goto end; |
0d63dd19 | 286 | } |
8ff0bbd0 | 287 | ev->attr.probe.addr = strtoul(s_hex, NULL, 0); |
cf0e5467 | 288 | DBG("probe addr %" PRIu64, ev->attr.probe.addr); |
3000dc78 DG |
289 | ev->attr.probe.offset = 0; |
290 | memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN); | |
8f0d098b | 291 | goto end; |
0d63dd19 DG |
292 | } |
293 | ||
294 | /* No match */ | |
295 | ret = -1; | |
296 | ||
8f0d098b | 297 | end: |
0d63dd19 DG |
298 | return ret; |
299 | } | |
300 | ||
b2064f54 DG |
301 | /* |
302 | * Maps JUL loglevel from string to value | |
303 | */ | |
304 | static int loglevel_jul_str_to_value(const char *inputstr) | |
305 | { | |
306 | int i = 0; | |
307 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
308 | ||
309 | /* | |
310 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
311 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
312 | */ | |
313 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
314 | str[i] = toupper(inputstr[i]); | |
315 | i++; | |
316 | } | |
317 | str[i] = '\0'; | |
318 | ||
319 | if (!strcmp(str, "JUL_OFF") || !strcmp(str, "OFF")) { | |
320 | return LTTNG_LOGLEVEL_JUL_OFF; | |
321 | } else if (!strcmp(str, "JUL_SEVERE") || !strcmp(str, "SEVERE")) { | |
322 | return LTTNG_LOGLEVEL_JUL_SEVERE; | |
323 | } else if (!strcmp(str, "JUL_WARNING") || !strcmp(str, "WARNING")) { | |
324 | return LTTNG_LOGLEVEL_JUL_WARNING; | |
325 | } else if (!strcmp(str, "JUL_INFO") || !strcmp(str, "INFO")) { | |
326 | return LTTNG_LOGLEVEL_JUL_INFO; | |
327 | } else if (!strcmp(str, "JUL_CONFIG") || !strcmp(str, "CONFIG")) { | |
328 | return LTTNG_LOGLEVEL_JUL_CONFIG; | |
329 | } else if (!strcmp(str, "JUL_FINE") || !strcmp(str, "FINE")) { | |
330 | return LTTNG_LOGLEVEL_JUL_FINE; | |
331 | } else if (!strcmp(str, "JUL_FINER") || !strcmp(str, "FINER")) { | |
332 | return LTTNG_LOGLEVEL_JUL_FINER; | |
333 | } else if (!strcmp(str, "JUL_FINEST") || !strcmp(str, "FINEST")) { | |
334 | return LTTNG_LOGLEVEL_JUL_FINEST; | |
335 | } else if (!strcmp(str, "JUL_ALL") || !strcmp(str, "ALL")) { | |
336 | return LTTNG_LOGLEVEL_JUL_ALL; | |
337 | } else { | |
338 | return -1; | |
339 | } | |
340 | } | |
341 | ||
8005f29a | 342 | /* |
0c8477c8 | 343 | * Maps loglevel from string to value |
8005f29a MD |
344 | */ |
345 | static | |
46839cc2 | 346 | int loglevel_str_to_value(const char *inputstr) |
8005f29a | 347 | { |
46839cc2 MD |
348 | int i = 0; |
349 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
350 | ||
e051e07c DG |
351 | /* |
352 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
353 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
354 | */ | |
355 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
46839cc2 MD |
356 | str[i] = toupper(inputstr[i]); |
357 | i++; | |
358 | } | |
359 | str[i] = '\0'; | |
360 | if (!strcmp(str, "TRACE_EMERG") || !strcmp(str, "EMERG")) { | |
361 | return LTTNG_LOGLEVEL_EMERG; | |
362 | } else if (!strcmp(str, "TRACE_ALERT") || !strcmp(str, "ALERT")) { | |
363 | return LTTNG_LOGLEVEL_ALERT; | |
364 | } else if (!strcmp(str, "TRACE_CRIT") || !strcmp(str, "CRIT")) { | |
365 | return LTTNG_LOGLEVEL_CRIT; | |
366 | } else if (!strcmp(str, "TRACE_ERR") || !strcmp(str, "ERR")) { | |
367 | return LTTNG_LOGLEVEL_ERR; | |
368 | } else if (!strcmp(str, "TRACE_WARNING") || !strcmp(str, "WARNING")) { | |
369 | return LTTNG_LOGLEVEL_WARNING; | |
370 | } else if (!strcmp(str, "TRACE_NOTICE") || !strcmp(str, "NOTICE")) { | |
371 | return LTTNG_LOGLEVEL_NOTICE; | |
372 | } else if (!strcmp(str, "TRACE_INFO") || !strcmp(str, "INFO")) { | |
373 | return LTTNG_LOGLEVEL_INFO; | |
374 | } else if (!strcmp(str, "TRACE_DEBUG_SYSTEM") || !strcmp(str, "DEBUG_SYSTEM") || !strcmp(str, "SYSTEM")) { | |
375 | return LTTNG_LOGLEVEL_DEBUG_SYSTEM; | |
376 | } else if (!strcmp(str, "TRACE_DEBUG_PROGRAM") || !strcmp(str, "DEBUG_PROGRAM") || !strcmp(str, "PROGRAM")) { | |
377 | return LTTNG_LOGLEVEL_DEBUG_PROGRAM; | |
378 | } else if (!strcmp(str, "TRACE_DEBUG_PROCESS") || !strcmp(str, "DEBUG_PROCESS") || !strcmp(str, "PROCESS")) { | |
379 | return LTTNG_LOGLEVEL_DEBUG_PROCESS; | |
380 | } else if (!strcmp(str, "TRACE_DEBUG_MODULE") || !strcmp(str, "DEBUG_MODULE") || !strcmp(str, "MODULE")) { | |
381 | return LTTNG_LOGLEVEL_DEBUG_MODULE; | |
382 | } else if (!strcmp(str, "TRACE_DEBUG_UNIT") || !strcmp(str, "DEBUG_UNIT") || !strcmp(str, "UNIT")) { | |
383 | return LTTNG_LOGLEVEL_DEBUG_UNIT; | |
384 | } else if (!strcmp(str, "TRACE_DEBUG_FUNCTION") || !strcmp(str, "DEBUG_FUNCTION") || !strcmp(str, "FUNCTION")) { | |
385 | return LTTNG_LOGLEVEL_DEBUG_FUNCTION; | |
386 | } else if (!strcmp(str, "TRACE_DEBUG_LINE") || !strcmp(str, "DEBUG_LINE") || !strcmp(str, "LINE")) { | |
387 | return LTTNG_LOGLEVEL_DEBUG_LINE; | |
388 | } else if (!strcmp(str, "TRACE_DEBUG") || !strcmp(str, "DEBUG")) { | |
389 | return LTTNG_LOGLEVEL_DEBUG; | |
8005f29a MD |
390 | } else { |
391 | return -1; | |
392 | } | |
393 | } | |
394 | ||
85076754 MD |
395 | static |
396 | const char *print_channel_name(const char *name) | |
397 | { | |
398 | return name ? : DEFAULT_CHANNEL_NAME; | |
399 | } | |
400 | ||
401 | static | |
402 | const char *print_raw_channel_name(const char *name) | |
403 | { | |
404 | return name ? : "<default>"; | |
405 | } | |
406 | ||
89476427 JRJ |
407 | /* |
408 | * Mi print exlcusion list | |
409 | */ | |
410 | static | |
411 | int mi_print_exclusion(int count, char **names) | |
412 | { | |
413 | int i, ret; | |
414 | ||
415 | assert(writer); | |
416 | ||
417 | if (count == 0) { | |
418 | ret = 0; | |
419 | goto end; | |
420 | } | |
421 | ret = mi_lttng_writer_open_element(writer, config_element_exclusions); | |
422 | if (ret) { | |
423 | goto end; | |
424 | } | |
425 | ||
426 | for (i = 0; i < count; i++) { | |
427 | ret = mi_lttng_writer_write_element_string(writer, | |
428 | config_element_exclusion, names[i]); | |
429 | if (ret) { | |
430 | goto end; | |
431 | } | |
432 | } | |
433 | ||
434 | /* Close exclusions element */ | |
435 | ret = mi_lttng_writer_close_element(writer); | |
436 | ||
437 | end: | |
438 | return ret; | |
439 | } | |
440 | ||
9c48cab3 JI |
441 | /* |
442 | * Return allocated string for pretty-printing exclusion names. | |
443 | */ | |
444 | static | |
445 | char *print_exclusions(int count, char **names) | |
446 | { | |
447 | int length = 0; | |
448 | int i; | |
449 | const char *preamble = " excluding "; | |
450 | char *ret; | |
451 | ||
452 | if (count == 0) { | |
453 | return strdup(""); | |
454 | } | |
455 | ||
456 | /* calculate total required length */ | |
457 | for (i = 0; i < count; i++) { | |
458 | length += strlen(names[i]) + 1; | |
459 | } | |
460 | ||
461 | /* add length of preamble + one for NUL - one for last (missing) comma */ | |
462 | length += strlen(preamble); | |
463 | ret = malloc(length); | |
464 | strncpy(ret, preamble, length); | |
465 | for (i = 0; i < count; i++) { | |
466 | strcat(ret, names[i]); | |
467 | if (i != count - 1) { | |
468 | strcat(ret, ","); | |
469 | } | |
470 | } | |
89476427 | 471 | |
9c48cab3 JI |
472 | return ret; |
473 | } | |
474 | ||
748bde76 JI |
475 | /* |
476 | * Compare list of exclusions against an event name. | |
477 | * Return a list of legal exclusion names. | |
478 | * Produce an error or a warning about others (depending on the situation) | |
479 | */ | |
480 | static | |
481 | int check_exclusion_subsets(const char *event_name, | |
482 | const char *exclusions, | |
483 | int *exclusion_count_ptr, | |
484 | char ***exclusion_list_ptr) | |
485 | { | |
486 | const char *excluder_ptr; | |
487 | const char *event_ptr; | |
488 | const char *next_excluder; | |
489 | int excluder_length; | |
490 | int exclusion_count = 0; | |
491 | char **exclusion_list = NULL; | |
492 | int ret = CMD_SUCCESS; | |
493 | ||
494 | if (event_name[strlen(event_name) - 1] != '*') { | |
495 | ERR("Event %s: Excluders can only be used with wildcarded events", event_name); | |
496 | goto error; | |
497 | } | |
498 | ||
499 | next_excluder = exclusions; | |
500 | while (*next_excluder != 0) { | |
501 | event_ptr = event_name; | |
502 | excluder_ptr = next_excluder; | |
503 | excluder_length = strcspn(next_excluder, ","); | |
504 | ||
505 | /* Scan both the excluder and the event letter by letter */ | |
506 | while (1) { | |
507 | char e, x; | |
508 | ||
509 | e = *event_ptr; | |
510 | x = *excluder_ptr; | |
511 | ||
512 | if (x == '*') { | |
513 | /* Event is a subset of the excluder */ | |
514 | ERR("Event %s: %.*s excludes all events from %s", | |
515 | event_name, | |
516 | excluder_length, | |
517 | next_excluder, | |
518 | event_name); | |
519 | goto error; | |
520 | } | |
521 | if (e == '*') { | |
522 | /* Excluder is a proper subset of event */ | |
523 | exclusion_count++; | |
524 | exclusion_list = realloc(exclusion_list, sizeof(char **) * exclusion_count); | |
525 | exclusion_list[exclusion_count - 1] = strndup(next_excluder, excluder_length); | |
526 | ||
527 | break; | |
528 | } | |
529 | if (x != e) { | |
530 | /* Excluder and event sets have no common elements */ | |
531 | WARN("Event %s: %.*s does not exclude any events from %s", | |
532 | event_name, | |
533 | excluder_length, | |
534 | next_excluder, | |
535 | event_name); | |
536 | break; | |
537 | } | |
538 | excluder_ptr++; | |
539 | event_ptr++; | |
540 | } | |
541 | /* next excluder */ | |
542 | next_excluder += excluder_length; | |
543 | if (*next_excluder == ',') { | |
544 | next_excluder++; | |
545 | } | |
546 | } | |
547 | goto end; | |
548 | error: | |
549 | while (exclusion_count--) { | |
550 | free(exclusion_list[exclusion_count]); | |
551 | } | |
552 | if (exclusion_list != NULL) { | |
553 | free(exclusion_list); | |
554 | } | |
555 | exclusion_list = NULL; | |
556 | exclusion_count = 0; | |
557 | ret = CMD_ERROR; | |
558 | end: | |
559 | *exclusion_count_ptr = exclusion_count; | |
560 | *exclusion_list_ptr = exclusion_list; | |
561 | return ret; | |
562 | } | |
f3ed775e | 563 | /* |
6181537c | 564 | * Enabling event using the lttng API. |
89476427 | 565 | * Note: in case of error only the last error code will be return. |
f3ed775e | 566 | */ |
cd80958d | 567 | static int enable_events(char *session_name) |
f3ed775e | 568 | { |
89476427 JRJ |
569 | int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS; |
570 | int error_holder = CMD_SUCCESS, warn = 0, error = 0, success = 1; | |
b73d0b29 | 571 | char *event_name, *channel_name = NULL; |
f3ed775e | 572 | struct lttng_event ev; |
7d29a247 | 573 | struct lttng_domain dom; |
7ed70bc9 JI |
574 | int exclusion_count = 0; |
575 | char **exclusion_list = NULL; | |
f3ed775e | 576 | |
441c16a7 MD |
577 | memset(&ev, 0, sizeof(ev)); |
578 | memset(&dom, 0, sizeof(dom)); | |
579 | ||
53a80697 MD |
580 | if (opt_kernel) { |
581 | if (opt_filter) { | |
582 | ERR("Filter not implement for kernel tracing yet"); | |
583 | ret = CMD_ERROR; | |
584 | goto error; | |
585 | } | |
67b58630 JG |
586 | if (opt_loglevel) { |
587 | WARN("Kernel loglevels are not supported."); | |
588 | } | |
53a80697 MD |
589 | } |
590 | ||
7d29a247 DG |
591 | /* Create lttng domain */ |
592 | if (opt_kernel) { | |
593 | dom.type = LTTNG_DOMAIN_KERNEL; | |
7972aab2 | 594 | dom.buf_type = LTTNG_BUFFER_GLOBAL; |
d78d6610 | 595 | } else if (opt_userspace) { |
2bdd86d4 | 596 | dom.type = LTTNG_DOMAIN_UST; |
7972aab2 | 597 | /* Default. */ |
8692d4e5 | 598 | dom.buf_type = LTTNG_BUFFER_PER_UID; |
b9dfb167 DG |
599 | } else if (opt_jul) { |
600 | dom.type = LTTNG_DOMAIN_JUL; | |
601 | /* Default. */ | |
602 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
6181537c | 603 | } else { |
b9dfb167 | 604 | print_missing_domain(); |
d16c1a4c | 605 | ret = CMD_ERROR; |
6181537c | 606 | goto error; |
2bdd86d4 | 607 | } |
7d29a247 | 608 | |
d5dd17fd JI |
609 | if (opt_kernel && opt_exclude) { |
610 | ERR("Event name exclusions are not yet implemented for kernel events"); | |
611 | ret = CMD_ERROR; | |
612 | goto error; | |
613 | } | |
614 | ||
85076754 | 615 | channel_name = opt_channel_name; |
ae856491 | 616 | |
cd80958d DG |
617 | handle = lttng_create_handle(session_name, &dom); |
618 | if (handle == NULL) { | |
619 | ret = -1; | |
620 | goto error; | |
621 | } | |
1aef21b6 | 622 | |
89476427 JRJ |
623 | /* Prepare Mi */ |
624 | if (lttng_opt_mi) { | |
625 | /* Open a events element */ | |
626 | ret = mi_lttng_writer_open_element(writer, config_element_events); | |
627 | if (ret) { | |
628 | ret = CMD_ERROR; | |
629 | goto error; | |
630 | } | |
631 | } | |
632 | ||
cd80958d | 633 | if (opt_enable_all) { |
8c9ae521 | 634 | /* Default setup for enable all */ |
75e8c5ab MD |
635 | if (opt_kernel) { |
636 | ev.type = opt_event_type; | |
637 | ev.name[0] = '\0'; | |
300b8fd5 MD |
638 | /* kernel loglevels not implemented */ |
639 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; | |
75e8c5ab MD |
640 | } else { |
641 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
642 | strcpy(ev.name, "*"); | |
300b8fd5 MD |
643 | ev.loglevel_type = opt_loglevel_type; |
644 | if (opt_loglevel) { | |
b2064f54 DG |
645 | assert(opt_userspace || opt_jul); |
646 | if (opt_userspace) { | |
647 | ev.loglevel = loglevel_str_to_value(opt_loglevel); | |
648 | } else if (opt_jul) { | |
649 | ev.loglevel = loglevel_jul_str_to_value(opt_loglevel); | |
650 | } | |
300b8fd5 MD |
651 | if (ev.loglevel == -1) { |
652 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 653 | ret = -LTTNG_ERR_INVALID; |
300b8fd5 MD |
654 | goto error; |
655 | } | |
22e25b71 | 656 | } else { |
b2064f54 DG |
657 | assert(opt_userspace || opt_jul); |
658 | if (opt_userspace) { | |
659 | ev.loglevel = -1; | |
660 | } else if (opt_jul) { | |
661 | ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL; | |
662 | } | |
300b8fd5 | 663 | } |
75e8c5ab | 664 | } |
8c9ae521 | 665 | |
7ed70bc9 JI |
666 | if (opt_exclude) { |
667 | ret = check_exclusion_subsets("*", opt_exclude, | |
668 | &exclusion_count, &exclusion_list); | |
669 | if (ret == CMD_ERROR) { | |
670 | goto error; | |
671 | } | |
89476427 | 672 | ev.exclusion = 1; |
7ed70bc9 | 673 | } |
025faf73 | 674 | if (!opt_filter) { |
7ed70bc9 JI |
675 | ret = lttng_enable_event_with_exclusions(handle, |
676 | &ev, channel_name, | |
677 | NULL, | |
678 | exclusion_count, exclusion_list); | |
025faf73 DG |
679 | if (ret < 0) { |
680 | switch (-ret) { | |
681 | case LTTNG_ERR_KERN_EVENT_EXIST: | |
682 | WARN("Kernel events already enabled (channel %s, session %s)", | |
85076754 | 683 | print_channel_name(channel_name), session_name); |
89476427 | 684 | warn = 1; |
025faf73 DG |
685 | break; |
686 | default: | |
687 | ERR("Events: %s (channel %s, session %s)", | |
85076754 MD |
688 | lttng_strerror(ret), |
689 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
690 | ? print_raw_channel_name(channel_name) | |
691 | : print_channel_name(channel_name), | |
692 | session_name); | |
89476427 | 693 | error = 1; |
025faf73 DG |
694 | break; |
695 | } | |
696 | goto end; | |
42224349 | 697 | } |
8c9ae521 | 698 | |
025faf73 DG |
699 | switch (opt_event_type) { |
700 | case LTTNG_EVENT_TRACEPOINT: | |
67b58630 | 701 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9c48cab3 JI |
702 | char *exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
703 | MSG("All %s tracepoints%s are enabled in channel %s for loglevel %s", | |
b9dfb167 | 704 | get_domain_str(dom.type), |
9c48cab3 | 705 | exclusion_string, |
85076754 | 706 | print_channel_name(channel_name), |
025faf73 | 707 | opt_loglevel); |
9c48cab3 | 708 | free(exclusion_string); |
025faf73 | 709 | } else { |
9c48cab3 JI |
710 | char *exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
711 | MSG("All %s tracepoints%s are enabled in channel %s", | |
b9dfb167 | 712 | get_domain_str(dom.type), |
9c48cab3 | 713 | exclusion_string, |
85076754 | 714 | print_channel_name(channel_name)); |
9c48cab3 | 715 | free(exclusion_string); |
025faf73 DG |
716 | } |
717 | break; | |
718 | case LTTNG_EVENT_SYSCALL: | |
719 | if (opt_kernel) { | |
720 | MSG("All kernel system calls are enabled in channel %s", | |
85076754 | 721 | print_channel_name(channel_name)); |
025faf73 DG |
722 | } |
723 | break; | |
724 | case LTTNG_EVENT_ALL: | |
67b58630 | 725 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9c48cab3 JI |
726 | char *exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
727 | MSG("All %s events%s are enabled in channel %s for loglevel %s", | |
b9dfb167 | 728 | get_domain_str(dom.type), |
9c48cab3 | 729 | exclusion_string, |
85076754 | 730 | print_channel_name(channel_name), |
025faf73 | 731 | opt_loglevel); |
9c48cab3 | 732 | free(exclusion_string); |
025faf73 | 733 | } else { |
9c48cab3 JI |
734 | char *exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
735 | MSG("All %s events%s are enabled in channel %s", | |
b9dfb167 | 736 | get_domain_str(dom.type), |
9c48cab3 | 737 | exclusion_string, |
85076754 | 738 | print_channel_name(channel_name)); |
9c48cab3 | 739 | free(exclusion_string); |
025faf73 DG |
740 | } |
741 | break; | |
742 | default: | |
743 | /* | |
744 | * We should not be here since lttng_enable_event should have | |
745 | * failed on the event type. | |
746 | */ | |
747 | goto error; | |
57064ada | 748 | } |
f3ed775e | 749 | } |
89476427 | 750 | |
025faf73 | 751 | if (opt_filter) { |
89476427 | 752 | command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name, |
7ed70bc9 | 753 | opt_filter, exclusion_count, exclusion_list); |
89476427 JRJ |
754 | if (command_ret < 0) { |
755 | switch (-command_ret) { | |
16363652 | 756 | case LTTNG_ERR_FILTER_EXIST: |
85076754 | 757 | WARN("Filter on all events is already enabled" |
16363652 | 758 | " (channel %s, session %s)", |
85076754 | 759 | print_channel_name(channel_name), session_name); |
89476427 | 760 | warn = 1; |
16363652 DG |
761 | break; |
762 | default: | |
85076754 MD |
763 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", |
764 | lttng_strerror(ret), | |
765 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
766 | ? print_raw_channel_name(channel_name) | |
767 | : print_channel_name(channel_name), | |
768 | session_name, opt_filter); | |
89476427 | 769 | error = 1; |
16363652 DG |
770 | break; |
771 | } | |
89476427 | 772 | error_holder = command_ret; |
16363652 | 773 | } else { |
89476427 | 774 | ev.filter = 1; |
16363652 DG |
775 | MSG("Filter '%s' successfully set", opt_filter); |
776 | } | |
777 | } | |
89476427 JRJ |
778 | |
779 | if (lttng_opt_mi) { | |
780 | /* The wildcard * is used for kernel and ust domain to | |
781 | * represent ALL. We copy * in event name to force the wildcard use | |
782 | * for kernel domain | |
783 | * | |
784 | * Note: this is strictly for semantic and printing while in | |
785 | * machine interface mode. | |
786 | */ | |
787 | strcpy(ev.name, "*"); | |
788 | ||
789 | /* If we reach here the events are enabled */ | |
790 | if (!error && !warn) { | |
791 | ev.enabled = 1; | |
792 | } else { | |
793 | ev.enabled = 0; | |
794 | success = 0; | |
795 | } | |
796 | ret = mi_lttng_event(writer, &ev, 1); | |
797 | if (ret) { | |
798 | ret = CMD_ERROR; | |
799 | goto error; | |
800 | } | |
801 | ||
802 | /* print exclusion */ | |
803 | ret = mi_print_exclusion(exclusion_count, exclusion_list); | |
804 | if (ret) { | |
805 | ret = CMD_ERROR; | |
806 | goto error; | |
807 | } | |
808 | ||
809 | /* Success ? */ | |
810 | ret = mi_lttng_writer_write_element_bool(writer, | |
811 | mi_lttng_element_command_success, success); | |
812 | if (ret) { | |
813 | ret = CMD_ERROR; | |
814 | goto error; | |
815 | } | |
816 | ||
817 | /* Close event element */ | |
818 | ret = mi_lttng_writer_close_element(writer); | |
819 | if (ret) { | |
820 | ret = CMD_ERROR; | |
821 | goto error; | |
822 | } | |
823 | } | |
824 | ||
8c9ae521 | 825 | goto end; |
f3ed775e DG |
826 | } |
827 | ||
828 | /* Strip event list */ | |
829 | event_name = strtok(opt_event_list, ","); | |
830 | while (event_name != NULL) { | |
6181537c DG |
831 | /* Copy name and type of the event */ |
832 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
833 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
834 | ev.type = opt_event_type; | |
835 | ||
f3ed775e DG |
836 | /* Kernel tracer action */ |
837 | if (opt_kernel) { | |
838 | DBG("Enabling kernel event %s for channel %s", | |
85076754 MD |
839 | event_name, |
840 | print_channel_name(channel_name)); | |
f3ed775e DG |
841 | |
842 | switch (opt_event_type) { | |
7a3d1328 MD |
843 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ |
844 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
845 | /* Fall-through */ | |
e6ddca71 | 846 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 847 | break; |
7d29a247 | 848 | case LTTNG_EVENT_PROBE: |
cf0e5467 | 849 | ret = parse_probe_opts(&ev, opt_probe); |
0d63dd19 | 850 | if (ret < 0) { |
cf0e5467 | 851 | ERR("Unable to parse probe options"); |
0d63dd19 DG |
852 | ret = 0; |
853 | goto error; | |
854 | } | |
f3ed775e DG |
855 | break; |
856 | case LTTNG_EVENT_FUNCTION: | |
8f0d098b MD |
857 | ret = parse_probe_opts(&ev, opt_function); |
858 | if (ret < 0) { | |
859 | ERR("Unable to parse function probe options"); | |
860 | ret = 0; | |
861 | goto error; | |
862 | } | |
863 | break; | |
864 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
6181537c DG |
865 | strncpy(ev.attr.ftrace.symbol_name, opt_function_entry_symbol, |
866 | LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 867 | ev.attr.ftrace.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
f3ed775e | 868 | break; |
a54bd42d | 869 | case LTTNG_EVENT_SYSCALL: |
6181537c DG |
870 | MSG("per-syscall selection not supported yet. Use \"-a\" " |
871 | "for all syscalls."); | |
f3ed775e | 872 | default: |
1ab1ea0b | 873 | ret = CMD_UNDEFINED; |
f3ed775e DG |
874 | goto error; |
875 | } | |
0cda4f28 | 876 | |
0cda4f28 | 877 | /* kernel loglevels not implemented */ |
8005f29a | 878 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
f3ed775e | 879 | } else if (opt_userspace) { /* User-space tracer action */ |
d78d6610 | 880 | #if 0 |
e14f64a8 DG |
881 | if (opt_cmd_name != NULL || opt_pid) { |
882 | MSG("Only supporting tracing all UST processes (-u) for now."); | |
1ab1ea0b | 883 | ret = CMD_UNDEFINED; |
2bdd86d4 MD |
884 | goto error; |
885 | } | |
d78d6610 | 886 | #endif |
6181537c | 887 | |
300b8fd5 | 888 | DBG("Enabling UST event %s for channel %s, loglevel %s", event_name, |
85076754 | 889 | print_channel_name(channel_name), opt_loglevel ? : "<all>"); |
2bdd86d4 MD |
890 | |
891 | switch (opt_event_type) { | |
892 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
893 | /* Fall-through */ |
894 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e MD |
895 | /* Copy name and type of the event */ |
896 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
897 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
898 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 MD |
899 | break; |
900 | case LTTNG_EVENT_PROBE: | |
901 | case LTTNG_EVENT_FUNCTION: | |
902 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
903 | case LTTNG_EVENT_SYSCALL: | |
904 | default: | |
cc62c0c0 | 905 | ERR("Event type not available for user-space tracing"); |
4ce78777 | 906 | ret = CMD_UNSUPPORTED; |
2bdd86d4 MD |
907 | goto error; |
908 | } | |
0cda4f28 | 909 | |
7ed70bc9 | 910 | if (opt_exclude) { |
89476427 | 911 | ev.exclusion = 1; |
d5dd17fd JI |
912 | if (opt_event_type != LTTNG_EVENT_ALL && opt_event_type != LTTNG_EVENT_TRACEPOINT) { |
913 | ERR("Exclusion option can only be used with tracepoint events"); | |
914 | ret = CMD_ERROR; | |
915 | goto error; | |
916 | } | |
7ed70bc9 JI |
917 | /* Free previously allocated items */ |
918 | if (exclusion_list != NULL) { | |
919 | while (exclusion_count--) { | |
920 | free(exclusion_list[exclusion_count]); | |
921 | } | |
922 | free(exclusion_list); | |
923 | exclusion_list = NULL; | |
924 | } | |
925 | /* Check for proper subsets */ | |
926 | ret = check_exclusion_subsets(event_name, opt_exclude, | |
927 | &exclusion_count, &exclusion_list); | |
928 | if (ret == CMD_ERROR) { | |
929 | goto error; | |
930 | } | |
931 | } | |
932 | ||
0cda4f28 | 933 | ev.loglevel_type = opt_loglevel_type; |
ed7f4083 | 934 | if (opt_loglevel) { |
8005f29a MD |
935 | ev.loglevel = loglevel_str_to_value(opt_loglevel); |
936 | if (ev.loglevel == -1) { | |
937 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 938 | ret = -LTTNG_ERR_INVALID; |
8005f29a MD |
939 | goto error; |
940 | } | |
22e25b71 MD |
941 | } else { |
942 | ev.loglevel = -1; | |
ed7f4083 | 943 | } |
b9dfb167 DG |
944 | } else if (opt_jul) { |
945 | if (opt_event_type != LTTNG_EVENT_ALL && | |
946 | opt_event_type != LTTNG_EVENT_TRACEPOINT) { | |
947 | ERR("Event type not supported for JUL domain."); | |
948 | ret = CMD_UNSUPPORTED; | |
949 | goto error; | |
950 | } | |
b2064f54 DG |
951 | |
952 | ev.loglevel_type = opt_loglevel_type; | |
953 | if (opt_loglevel) { | |
954 | ev.loglevel = loglevel_jul_str_to_value(opt_loglevel); | |
955 | if (ev.loglevel == -1) { | |
956 | ERR("Unknown loglevel %s", opt_loglevel); | |
957 | ret = -LTTNG_ERR_INVALID; | |
958 | goto error; | |
959 | } | |
960 | } else { | |
961 | ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL; | |
962 | } | |
b9dfb167 DG |
963 | ev.type = LTTNG_EVENT_TRACEPOINT; |
964 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
965 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
f3ed775e | 966 | } else { |
b9dfb167 | 967 | print_missing_domain(); |
300b8fd5 | 968 | ret = CMD_ERROR; |
f3ed775e DG |
969 | goto error; |
970 | } | |
971 | ||
025faf73 | 972 | if (!opt_filter) { |
9c48cab3 JI |
973 | char *exclusion_string; |
974 | ||
89476427 | 975 | command_ret = lttng_enable_event_with_exclusions(handle, |
7ed70bc9 JI |
976 | &ev, channel_name, |
977 | NULL, exclusion_count, exclusion_list); | |
9c48cab3 | 978 | exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
89476427 | 979 | if (command_ret < 0) { |
025faf73 | 980 | /* Turn ret to positive value to handle the positive error code */ |
89476427 | 981 | switch (-command_ret) { |
025faf73 | 982 | case LTTNG_ERR_KERN_EVENT_EXIST: |
9c48cab3 | 983 | WARN("Kernel event %s%s already enabled (channel %s, session %s)", |
85076754 | 984 | event_name, |
9c48cab3 | 985 | exclusion_string, |
85076754 | 986 | print_channel_name(channel_name), session_name); |
89476427 | 987 | warn = 1; |
025faf73 DG |
988 | break; |
989 | default: | |
9c48cab3 JI |
990 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, |
991 | exclusion_string, | |
85076754 MD |
992 | lttng_strerror(ret), |
993 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
994 | ? print_raw_channel_name(channel_name) | |
995 | : print_channel_name(channel_name), | |
996 | session_name); | |
89476427 | 997 | error = 1; |
025faf73 DG |
998 | break; |
999 | } | |
89476427 | 1000 | error_holder = command_ret; |
025faf73 | 1001 | } else { |
49ceaa70 DG |
1002 | /* So we don't print the default channel name for JUL. */ |
1003 | if (dom.type == LTTNG_DOMAIN_JUL) { | |
1004 | MSG("%s event %s%s enabled.", | |
1005 | get_domain_str(dom.type), event_name, | |
1006 | exclusion_string); | |
1007 | } else { | |
1008 | MSG("%s event %s%s created in channel %s", | |
1009 | get_domain_str(dom.type), event_name, | |
1010 | exclusion_string, | |
1011 | print_channel_name(channel_name)); | |
1012 | } | |
42224349 | 1013 | } |
9c48cab3 | 1014 | free(exclusion_string); |
6181537c | 1015 | } |
025faf73 DG |
1016 | |
1017 | if (opt_filter) { | |
9c48cab3 JI |
1018 | char *exclusion_string; |
1019 | ||
89476427 JRJ |
1020 | /* Filter present */ |
1021 | ev.filter = 1; | |
1022 | ||
1023 | command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name, | |
7ed70bc9 | 1024 | opt_filter, exclusion_count, exclusion_list); |
9c48cab3 JI |
1025 | exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
1026 | ||
89476427 JRJ |
1027 | if (command_ret < 0) { |
1028 | switch (-command_ret) { | |
7671f53c | 1029 | case LTTNG_ERR_FILTER_EXIST: |
9c48cab3 | 1030 | WARN("Filter on event %s%s is already enabled" |
7671f53c | 1031 | " (channel %s, session %s)", |
85076754 | 1032 | event_name, |
9c48cab3 | 1033 | exclusion_string, |
85076754 | 1034 | print_channel_name(channel_name), session_name); |
89476427 | 1035 | warn = 1; |
7671f53c CB |
1036 | break; |
1037 | default: | |
9c48cab3 JI |
1038 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name, |
1039 | exclusion_string, | |
85076754 MD |
1040 | lttng_strerror(ret), |
1041 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
1042 | ? print_raw_channel_name(channel_name) | |
1043 | : print_channel_name(channel_name), | |
1044 | session_name, opt_filter); | |
89476427 | 1045 | error = 1; |
7671f53c CB |
1046 | break; |
1047 | } | |
89476427 JRJ |
1048 | error_holder = command_ret; |
1049 | ||
16363652 | 1050 | } else { |
9c48cab3 JI |
1051 | MSG("Event %s%s: Filter '%s' successfully set", |
1052 | event_name, exclusion_string, | |
1053 | opt_filter); | |
53a80697 | 1054 | } |
9c48cab3 | 1055 | free(exclusion_string); |
53a80697 | 1056 | } |
6181537c | 1057 | |
89476427 JRJ |
1058 | if (lttng_opt_mi) { |
1059 | if (command_ret) { | |
1060 | success = 0; | |
1061 | ev.enabled = 0; | |
1062 | } else { | |
1063 | ev.enabled = 1; | |
1064 | } | |
1065 | ||
1066 | ret = mi_lttng_event(writer, &ev, 1); | |
1067 | if (ret) { | |
1068 | ret = CMD_ERROR; | |
1069 | goto error; | |
1070 | } | |
1071 | ||
1072 | /* print exclusion */ | |
1073 | ret = mi_print_exclusion(exclusion_count, exclusion_list); | |
1074 | if (ret) { | |
1075 | ret = CMD_ERROR; | |
1076 | goto error; | |
1077 | } | |
1078 | ||
1079 | /* Success ? */ | |
1080 | ret = mi_lttng_writer_write_element_bool(writer, | |
1081 | mi_lttng_element_command_success, success); | |
1082 | if (ret) { | |
1083 | ret = CMD_ERROR; | |
1084 | goto end; | |
1085 | } | |
1086 | ||
1087 | /* Close event element */ | |
1088 | ret = mi_lttng_writer_close_element(writer); | |
1089 | if (ret) { | |
1090 | ret = CMD_ERROR; | |
1091 | goto end; | |
1092 | } | |
1093 | } | |
1094 | ||
f3ed775e DG |
1095 | /* Next event */ |
1096 | event_name = strtok(NULL, ","); | |
89476427 JRJ |
1097 | /* Reset warn, error and success */ |
1098 | success = 1; | |
f3ed775e DG |
1099 | } |
1100 | ||
8c9ae521 | 1101 | end: |
89476427 JRJ |
1102 | /* Close Mi */ |
1103 | if (lttng_opt_mi) { | |
1104 | /* Close events element */ | |
1105 | ret = mi_lttng_writer_close_element(writer); | |
1106 | if (ret) { | |
1107 | ret = CMD_ERROR; | |
1108 | goto error; | |
1109 | } | |
1110 | } | |
f3ed775e | 1111 | error: |
ae856491 DG |
1112 | if (warn) { |
1113 | ret = CMD_WARNING; | |
1114 | } | |
89476427 JRJ |
1115 | if (error) { |
1116 | ret = CMD_ERROR; | |
1117 | } | |
cd80958d DG |
1118 | lttng_destroy_handle(handle); |
1119 | ||
7ed70bc9 JI |
1120 | if (exclusion_list != NULL) { |
1121 | while (exclusion_count--) { | |
1122 | free(exclusion_list[exclusion_count]); | |
1123 | } | |
1124 | free(exclusion_list); | |
1125 | } | |
1126 | ||
89476427 JRJ |
1127 | /* Overwrite ret with error_holder if there was an actual error with |
1128 | * enabling an event. | |
1129 | */ | |
1130 | ret = error_holder ? error_holder : ret; | |
1131 | ||
f3ed775e DG |
1132 | return ret; |
1133 | } | |
1134 | ||
1135 | /* | |
6181537c | 1136 | * Add event to trace session |
f3ed775e DG |
1137 | */ |
1138 | int cmd_enable_events(int argc, const char **argv) | |
1139 | { | |
89476427 | 1140 | int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1; |
f3ed775e | 1141 | static poptContext pc; |
cd80958d | 1142 | char *session_name = NULL; |
de044b7a | 1143 | int event_type = -1; |
f3ed775e DG |
1144 | |
1145 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1146 | poptReadDefaultConfig(pc, 0); | |
1147 | ||
1148 | /* Default event type */ | |
7a3d1328 | 1149 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
1150 | |
1151 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1152 | switch (opt) { | |
1153 | case OPT_HELP: | |
ca1c3607 | 1154 | usage(stdout); |
f3ed775e | 1155 | goto end; |
f3ed775e | 1156 | case OPT_TRACEPOINT: |
e6ddca71 | 1157 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 1158 | break; |
cf0e5467 | 1159 | case OPT_PROBE: |
7d29a247 | 1160 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e DG |
1161 | break; |
1162 | case OPT_FUNCTION: | |
1163 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b MD |
1164 | break; |
1165 | case OPT_FUNCTION_ENTRY: | |
1166 | opt_event_type = LTTNG_EVENT_FUNCTION_ENTRY; | |
f3ed775e | 1167 | break; |
a54bd42d MD |
1168 | case OPT_SYSCALL: |
1169 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 1170 | break; |
eeac7d46 MD |
1171 | case OPT_USERSPACE: |
1172 | opt_userspace = 1; | |
eeac7d46 | 1173 | break; |
0cda4f28 | 1174 | case OPT_LOGLEVEL: |
8005f29a | 1175 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE; |
0cda4f28 MD |
1176 | opt_loglevel = poptGetOptArg(pc); |
1177 | break; | |
1178 | case OPT_LOGLEVEL_ONLY: | |
8005f29a | 1179 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE; |
0cda4f28 | 1180 | opt_loglevel = poptGetOptArg(pc); |
13dce3b7 | 1181 | break; |
679b4943 SM |
1182 | case OPT_LIST_OPTIONS: |
1183 | list_cmd_options(stdout, long_options); | |
679b4943 | 1184 | goto end; |
53a80697 MD |
1185 | case OPT_FILTER: |
1186 | break; | |
fac3366c JI |
1187 | case OPT_EXCLUDE: |
1188 | break; | |
f3ed775e DG |
1189 | default: |
1190 | usage(stderr); | |
1191 | ret = CMD_UNDEFINED; | |
1192 | goto end; | |
1193 | } | |
de044b7a DG |
1194 | |
1195 | /* Validate event type. Multiple event type are not supported. */ | |
1196 | if (event_type == -1) { | |
1197 | event_type = opt_event_type; | |
1198 | } else { | |
1199 | if (event_type != opt_event_type) { | |
1200 | ERR("Multiple event type not supported."); | |
1201 | ret = CMD_ERROR; | |
1202 | goto end; | |
1203 | } | |
1204 | } | |
f3ed775e DG |
1205 | } |
1206 | ||
89476427 JRJ |
1207 | /* Mi check */ |
1208 | if (lttng_opt_mi) { | |
1209 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1210 | if (!writer) { | |
1211 | ret = -LTTNG_ERR_NOMEM; | |
1212 | goto end; | |
1213 | } | |
1214 | ||
1215 | /* Open command element */ | |
1216 | ret = mi_lttng_writer_command_open(writer, | |
1217 | mi_lttng_element_command_enable_event); | |
1218 | if (ret) { | |
1219 | ret = CMD_ERROR; | |
1220 | goto end; | |
1221 | } | |
1222 | ||
1223 | /* Open output element */ | |
1224 | ret = mi_lttng_writer_open_element(writer, | |
1225 | mi_lttng_element_command_output); | |
1226 | if (ret) { | |
1227 | ret = CMD_ERROR; | |
1228 | goto end; | |
1229 | } | |
1230 | } | |
1231 | ||
f3ed775e DG |
1232 | opt_event_list = (char*) poptGetArg(pc); |
1233 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
1234 | ERR("Missing event name(s).\n"); | |
1235 | usage(stderr); | |
ca1c3607 | 1236 | ret = CMD_ERROR; |
f3ed775e DG |
1237 | goto end; |
1238 | } | |
1239 | ||
cd80958d DG |
1240 | if (!opt_session_name) { |
1241 | session_name = get_session_name(); | |
1242 | if (session_name == NULL) { | |
89476427 JRJ |
1243 | command_ret = CMD_ERROR; |
1244 | success = 0; | |
1245 | goto mi_closing; | |
cd80958d DG |
1246 | } |
1247 | } else { | |
1248 | session_name = opt_session_name; | |
1249 | } | |
1250 | ||
89476427 JRJ |
1251 | command_ret = enable_events(session_name); |
1252 | if (command_ret) { | |
1253 | success = 0; | |
1254 | goto mi_closing; | |
1255 | } | |
1256 | ||
1257 | mi_closing: | |
1258 | /* Mi closing */ | |
1259 | if (lttng_opt_mi) { | |
1260 | /* Close output element */ | |
1261 | ret = mi_lttng_writer_close_element(writer); | |
1262 | if (ret) { | |
1263 | ret = CMD_ERROR; | |
1264 | goto end; | |
1265 | } | |
1266 | ||
1267 | ret = mi_lttng_writer_write_element_bool(writer, | |
1268 | mi_lttng_element_command_success, success); | |
1269 | if (ret) { | |
1270 | ret = CMD_ERROR; | |
1271 | goto end; | |
1272 | } | |
1273 | ||
1274 | /* Command element close */ | |
1275 | ret = mi_lttng_writer_command_close(writer); | |
1276 | if (ret) { | |
1277 | ret = CMD_ERROR; | |
1278 | goto end; | |
1279 | } | |
1280 | } | |
f3ed775e DG |
1281 | |
1282 | end: | |
89476427 JRJ |
1283 | /* Mi clean-up */ |
1284 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1285 | /* Preserve original error code */ | |
1286 | ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL; | |
1287 | } | |
1288 | ||
cd80958d DG |
1289 | if (opt_session_name == NULL) { |
1290 | free(session_name); | |
1291 | } | |
1292 | ||
89476427 JRJ |
1293 | /* Overwrite ret if an error occurred in enable_events */ |
1294 | ret = command_ret ? command_ret : ret; | |
1295 | ||
ca1c3607 | 1296 | poptFreeContext(pc); |
f3ed775e DG |
1297 | return ret; |
1298 | } |