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 | |
6c1c0768 | 19 | #define _LGPL_SOURCE |
b2064f54 | 20 | #include <assert.h> |
f3ed775e DG |
21 | #include <popt.h> |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | #include <sys/stat.h> | |
26 | #include <sys/types.h> | |
27 | #include <unistd.h> | |
5a0de755 | 28 | #include <inttypes.h> |
8f0d098b | 29 | #include <ctype.h> |
f3ed775e | 30 | |
42224349 | 31 | #include <src/common/sessiond-comm/sessiond-comm.h> |
f3ed775e | 32 | |
89476427 JRJ |
33 | /* Mi dependancy */ |
34 | #include <common/mi-lttng.h> | |
35 | ||
36 | #include "../command.h" | |
37 | ||
8ab7c0d9 MD |
38 | #if (LTTNG_SYMBOL_NAME_LEN == 256) |
39 | #define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255" | |
40 | #endif | |
41 | ||
f3ed775e DG |
42 | static char *opt_event_list; |
43 | static int opt_event_type; | |
0cda4f28 MD |
44 | static const char *opt_loglevel; |
45 | static int opt_loglevel_type; | |
6181537c | 46 | static int opt_kernel; |
5440dc42 | 47 | static char *opt_session_name; |
f3ed775e | 48 | static int opt_userspace; |
b9dfb167 | 49 | static int opt_jul; |
5cdb6027 | 50 | static int opt_log4j; |
0e115563 | 51 | static int opt_python; |
f3ed775e | 52 | static int opt_enable_all; |
cf0e5467 | 53 | static char *opt_probe; |
8f0d098b MD |
54 | static char *opt_function; |
55 | static char *opt_function_entry_symbol; | |
f3ed775e | 56 | static char *opt_channel_name; |
53a80697 | 57 | static char *opt_filter; |
fac3366c | 58 | static char *opt_exclude; |
d78d6610 DG |
59 | #if 0 |
60 | /* Not implemented yet */ | |
61 | static char *opt_cmd_name; | |
62 | static pid_t opt_pid; | |
63 | #endif | |
f3ed775e DG |
64 | |
65 | enum { | |
66 | OPT_HELP = 1, | |
f3ed775e | 67 | OPT_TRACEPOINT, |
cf0e5467 | 68 | OPT_PROBE, |
f3ed775e | 69 | OPT_FUNCTION, |
8f0d098b | 70 | OPT_FUNCTION_ENTRY, |
a54bd42d | 71 | OPT_SYSCALL, |
eeac7d46 | 72 | OPT_USERSPACE, |
0cda4f28 MD |
73 | OPT_LOGLEVEL, |
74 | OPT_LOGLEVEL_ONLY, | |
679b4943 | 75 | OPT_LIST_OPTIONS, |
53a80697 | 76 | OPT_FILTER, |
fac3366c | 77 | OPT_EXCLUDE, |
f3ed775e DG |
78 | }; |
79 | ||
cd80958d | 80 | static struct lttng_handle *handle; |
89476427 | 81 | static struct mi_writer *writer; |
cd80958d | 82 | |
f3ed775e DG |
83 | static struct poptOption long_options[] = { |
84 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
85 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 86 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e14f64a8 | 87 | {"all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0}, |
f3ed775e DG |
88 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
89 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, | |
d78d6610 | 90 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, |
b9dfb167 | 91 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
5cdb6027 | 92 | {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, |
0e115563 | 93 | {"python", 'p', POPT_ARG_VAL, &opt_python, 1, 0, 0}, |
f3ed775e | 94 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0}, |
7ebae521 | 95 | {"probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0}, |
40e9d5d3 | 96 | {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0}, |
b213d387 MD |
97 | #if 0 |
98 | /* | |
99 | * Currently removed from lttng kernel tracer. Removed from | |
100 | * lttng UI to discourage its use. | |
101 | */ | |
40e9d5d3 | 102 | {"function:entry", 0, POPT_ARG_STRING, &opt_function_entry_symbol, OPT_FUNCTION_ENTRY, 0, 0}, |
b213d387 | 103 | #endif |
7ebae521 | 104 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0}, |
0cda4f28 MD |
105 | {"loglevel", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL, 0, 0}, |
106 | {"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0}, | |
679b4943 | 107 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
53a80697 | 108 | {"filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0}, |
fac3366c | 109 | {"exclude", 'x', POPT_ARG_STRING, &opt_exclude, OPT_EXCLUDE, 0, 0}, |
f3ed775e DG |
110 | {0, 0, 0, 0, 0, 0, 0} |
111 | }; | |
112 | ||
113 | /* | |
114 | * usage | |
115 | */ | |
116 | static void usage(FILE *ofp) | |
117 | { | |
32a6298d | 118 | fprintf(ofp, "usage: lttng enable-event NAME[,NAME2,...] [-k|-u] [OPTIONS] \n"); |
f3ed775e | 119 | fprintf(ofp, "\n"); |
32a6298d | 120 | fprintf(ofp, "Options:\n"); |
f3ed775e | 121 | fprintf(ofp, " -h, --help Show this help\n"); |
679b4943 | 122 | fprintf(ofp, " --list-options Simple listing of options\n"); |
32a6298d DG |
123 | fprintf(ofp, " -s, --session NAME Apply to session name\n"); |
124 | fprintf(ofp, " -c, --channel NAME Apply to this channel\n"); | |
e08bff8d | 125 | fprintf(ofp, " -a, --all Enable all tracepoints and syscalls\n"); |
f3ed775e | 126 | fprintf(ofp, " -k, --kernel Apply for the kernel tracer\n"); |
27221701 | 127 | fprintf(ofp, " -u, --userspace Apply to the user-space tracer\n"); |
b9dfb167 | 128 | fprintf(ofp, " -j, --jul Apply for Java application using JUL\n"); |
5cdb6027 | 129 | fprintf(ofp, " -l, --log4j Apply for Java application using LOG4j\n"); |
0e115563 | 130 | fprintf(ofp, " -p, --python Apply for Java application using LOG4j\n"); |
f3ed775e DG |
131 | fprintf(ofp, "\n"); |
132 | fprintf(ofp, "Event options:\n"); | |
133 | fprintf(ofp, " --tracepoint Tracepoint event (default)\n"); | |
be49af1e MD |
134 | fprintf(ofp, " - userspace tracer supports wildcards at end of string.\n"); |
135 | fprintf(ofp, " Don't forget to quote to deal with bash expansion.\n"); | |
136 | fprintf(ofp, " e.g.:\n"); | |
137 | fprintf(ofp, " \"*\"\n"); | |
138 | fprintf(ofp, " \"app_component:na*\"\n"); | |
6a240cd9 | 139 | fprintf(ofp, " --probe (addr | symbol | symbol+offset)\n"); |
cf0e5467 MD |
140 | fprintf(ofp, " Dynamic probe.\n"); |
141 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
142 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
6a240cd9 | 143 | fprintf(ofp, " --function (addr | symbol | symbol+offset)\n"); |
8f0d098b MD |
144 | fprintf(ofp, " Dynamic function entry/return probe.\n"); |
145 | fprintf(ofp, " Addr and offset can be octal (0NNN...),\n"); | |
146 | fprintf(ofp, " decimal (NNN...) or hexadecimal (0xNNN...)\n"); | |
b213d387 | 147 | #if 0 |
8f0d098b MD |
148 | fprintf(ofp, " --function:entry symbol\n"); |
149 | fprintf(ofp, " Function tracer event\n"); | |
b213d387 | 150 | #endif |
a54bd42d | 151 | fprintf(ofp, " --syscall System call event\n"); |
f3ed775e | 152 | fprintf(ofp, "\n"); |
300b8fd5 | 153 | fprintf(ofp, " --loglevel name\n"); |
f9e8873b | 154 | fprintf(ofp, " Tracepoint loglevel range from 0 to loglevel.\n"); |
5cdb6027 | 155 | fprintf(ofp, " For JUL/LOG4j domain, see the table below for the range values.\n"); |
300b8fd5 MD |
156 | fprintf(ofp, " --loglevel-only name\n"); |
157 | fprintf(ofp, " Tracepoint loglevel (only this loglevel)\n"); | |
158 | fprintf(ofp, "\n"); | |
0c8477c8 MD |
159 | fprintf(ofp, " The loglevel or loglevel-only options should be\n"); |
160 | fprintf(ofp, " combined with a tracepoint name or tracepoint\n"); | |
161 | fprintf(ofp, " wildcard.\n"); | |
162 | fprintf(ofp, " Available loglevels:\n"); | |
163 | fprintf(ofp, " (higher value is more verbose)\n"); | |
46839cc2 MD |
164 | fprintf(ofp, " TRACE_EMERG = 0\n"); |
165 | fprintf(ofp, " TRACE_ALERT = 1\n"); | |
166 | fprintf(ofp, " TRACE_CRIT = 2\n"); | |
167 | fprintf(ofp, " TRACE_ERR = 3\n"); | |
168 | fprintf(ofp, " TRACE_WARNING = 4\n"); | |
169 | fprintf(ofp, " TRACE_NOTICE = 5\n"); | |
170 | fprintf(ofp, " TRACE_INFO = 6\n"); | |
171 | fprintf(ofp, " TRACE_DEBUG_SYSTEM = 7\n"); | |
172 | fprintf(ofp, " TRACE_DEBUG_PROGRAM = 8\n"); | |
173 | fprintf(ofp, " TRACE_DEBUG_PROCESS = 9\n"); | |
174 | fprintf(ofp, " TRACE_DEBUG_MODULE = 10\n"); | |
175 | fprintf(ofp, " TRACE_DEBUG_UNIT = 11\n"); | |
176 | fprintf(ofp, " TRACE_DEBUG_FUNCTION = 12\n"); | |
177 | fprintf(ofp, " TRACE_DEBUG_LINE = 13\n"); | |
178 | fprintf(ofp, " TRACE_DEBUG = 14\n"); | |
179 | fprintf(ofp, " (shortcuts such as \"system\" are allowed)\n"); | |
b2064f54 DG |
180 | fprintf(ofp, "\n"); |
181 | fprintf(ofp, " Available JUL domain loglevels:\n"); | |
182 | fprintf(ofp, " JUL_OFF = INT32_MAX\n"); | |
183 | fprintf(ofp, " JUL_SEVERE = %d\n", LTTNG_LOGLEVEL_JUL_SEVERE); | |
184 | fprintf(ofp, " JUL_WARNING = %d\n", LTTNG_LOGLEVEL_JUL_WARNING); | |
185 | fprintf(ofp, " JUL_INFO = %d\n", LTTNG_LOGLEVEL_JUL_INFO); | |
186 | fprintf(ofp, " JUL_CONFIG = %d\n", LTTNG_LOGLEVEL_JUL_CONFIG); | |
187 | fprintf(ofp, " JUL_FINE = %d\n", LTTNG_LOGLEVEL_JUL_FINE); | |
188 | fprintf(ofp, " JUL_FINER = %d\n", LTTNG_LOGLEVEL_JUL_FINER); | |
189 | fprintf(ofp, " JUL_FINEST = %d\n", LTTNG_LOGLEVEL_JUL_FINEST); | |
190 | fprintf(ofp, " JUL_ALL = INT32_MIN\n"); | |
191 | fprintf(ofp, " (shortcuts such as \"severe\" are allowed)\n"); | |
192 | fprintf(ofp, "\n"); | |
5cdb6027 DG |
193 | fprintf(ofp, " Available LOG4j domain loglevels:\n"); |
194 | fprintf(ofp, " LOG4J_OFF = INT32_MAX\n"); | |
195 | fprintf(ofp, " LOG4J_FATAL = %d\n", LTTNG_LOGLEVEL_LOG4J_FATAL); | |
196 | fprintf(ofp, " LOG4J_ERROR = %d\n", LTTNG_LOGLEVEL_LOG4J_ERROR); | |
197 | fprintf(ofp, " LOG4J_WARN = %d\n", LTTNG_LOGLEVEL_LOG4J_WARN); | |
198 | fprintf(ofp, " LOG4J_INFO = %d\n", LTTNG_LOGLEVEL_LOG4J_INFO); | |
199 | fprintf(ofp, " LOG4J_DEBUG = %d\n", LTTNG_LOGLEVEL_LOG4J_DEBUG); | |
200 | fprintf(ofp, " LOG4J_TRACE = %d\n", LTTNG_LOGLEVEL_LOG4J_TRACE); | |
201 | fprintf(ofp, " LOG4J_ALL = INT32_MIN\n"); | |
202 | fprintf(ofp, " (shortcuts such as \"severe\" are allowed)\n"); | |
203 | fprintf(ofp, "\n"); | |
0e115563 DG |
204 | fprintf(ofp, " Available Python domain loglevels:\n"); |
205 | fprintf(ofp, " PYTHON_CRITICAL = %d\n", LTTNG_LOGLEVEL_PYTHON_CRITICAL); | |
206 | fprintf(ofp, " PYTHON_ERROR = %d\n", LTTNG_LOGLEVEL_PYTHON_ERROR); | |
207 | fprintf(ofp, " PYTHON_WARNING = %d\n", LTTNG_LOGLEVEL_PYTHON_WARNING); | |
208 | fprintf(ofp, " PYTHON_INFO = %d\n", LTTNG_LOGLEVEL_PYTHON_INFO); | |
209 | fprintf(ofp, " PYTHON_DEBUG = %d\n", LTTNG_LOGLEVEL_PYTHON_DEBUG); | |
210 | fprintf(ofp, " PYTHON_NOTSET = %d\n", LTTNG_LOGLEVEL_PYTHON_NOTSET); | |
211 | fprintf(ofp, " (shortcuts such as \"critical\" are allowed)\n"); | |
212 | fprintf(ofp, "\n"); | |
f2611ab0 | 213 | fprintf(ofp, " -f, --filter \'expression\'\n"); |
ee8ccafa MD |
214 | fprintf(ofp, " Filter expression on event fields and context.\n"); |
215 | fprintf(ofp, " Event recording depends on evaluation.\n"); | |
919e300c MD |
216 | fprintf(ofp, " Only specify on first activation of\n"); |
217 | fprintf(ofp, " a given event within a session.\n"); | |
218 | fprintf(ofp, " Filter only allowed when enabling\n"); | |
219 | fprintf(ofp, " events within a session before tracing\n"); | |
9bd578f5 MD |
220 | fprintf(ofp, " is started. If the filter fails to link\n"); |
221 | fprintf(ofp, " with the event within the traced domain,\n"); | |
222 | fprintf(ofp, " the event will be discarded. Currently,\n"); | |
223 | fprintf(ofp, " filter is only implemented for the user-space\n"); | |
224 | fprintf(ofp, " tracer.\n"); | |
225 | fprintf(ofp, " Expression examples:.\n"); | |
226 | fprintf(ofp, " \n"); | |
227 | fprintf(ofp, " 'intfield > 500 && intfield < 503'\n"); | |
6a240cd9 | 228 | fprintf(ofp, " '(strfield == \"test\" || intfield != 10) && intfield > 33'\n"); |
9bd578f5 MD |
229 | fprintf(ofp, " 'doublefield > 1.1 && intfield < 5.3'\n"); |
230 | fprintf(ofp, " \n"); | |
231 | fprintf(ofp, " Wildcards are allowed at the end of strings:\n"); | |
232 | fprintf(ofp, " 'seqfield1 == \"te*\"'\n"); | |
233 | fprintf(ofp, " In string literals, the escape character is '\\'.\n"); | |
234 | fprintf(ofp, " Use '\\*' for the '*' character, and '\\\\' for\n"); | |
ee8ccafa MD |
235 | fprintf(ofp, " the '\\' character. Wildcard match any sequence of,\n"); |
236 | fprintf(ofp, " characters including an empty sub-string (match 0 or\n"); | |
237 | fprintf(ofp, " more characters).\n"); | |
238 | fprintf(ofp, "\n"); | |
239 | fprintf(ofp, " Context information can be used for filtering. The\n"); | |
240 | fprintf(ofp, " examples below show usage of context filtering on\n"); | |
241 | fprintf(ofp, " process name (with a wildcard), process ID range, and\n"); | |
242 | fprintf(ofp, " unique thread ID for filtering. The process and\n"); | |
243 | fprintf(ofp, " thread ID of running applications can be found under\n"); | |
244 | fprintf(ofp, " columns \"PID\" and \"LWP\" of the \"ps -eLf\" command.\n"); | |
245 | fprintf(ofp, "\n"); | |
246 | fprintf(ofp, " '$ctx.procname == \"demo*\"'\n"); | |
247 | fprintf(ofp, " '$ctx.vpid >= 4433 && $ctx.vpid < 4455'\n"); | |
248 | fprintf(ofp, " '$ctx.vtid == 1234'\n"); | |
c2063d0b JI |
249 | fprintf(ofp, " -x, --exclude LIST\n"); |
250 | fprintf(ofp, " Add exclusions to UST tracepoints:\n"); | |
251 | fprintf(ofp, " Events that match any of the items\n"); | |
252 | fprintf(ofp, " in the comma-separated LIST are not\n"); | |
253 | fprintf(ofp, " enabled, even if they match a wildcard\n"); | |
254 | fprintf(ofp, " definition of the event.\n"); | |
300b8fd5 | 255 | fprintf(ofp, "\n"); |
f3ed775e DG |
256 | } |
257 | ||
0d63dd19 | 258 | /* |
6181537c | 259 | * Parse probe options. |
0d63dd19 | 260 | */ |
cf0e5467 | 261 | static int parse_probe_opts(struct lttng_event *ev, char *opt) |
0d63dd19 | 262 | { |
49d4e302 JRJ |
263 | int ret = CMD_SUCCESS; |
264 | int match; | |
8ff0bbd0 | 265 | char s_hex[19]; |
8ab7c0d9 | 266 | #define S_HEX_LEN_SCANF_IS_A_BROKEN_API "18" /* 18 is (19 - 1) (\0 is extra) */ |
0d63dd19 DG |
267 | char name[LTTNG_SYMBOL_NAME_LEN]; |
268 | ||
269 | if (opt == NULL) { | |
49d4e302 | 270 | ret = CMD_ERROR; |
8f0d098b | 271 | goto end; |
0d63dd19 DG |
272 | } |
273 | ||
274 | /* Check for symbol+offset */ | |
49d4e302 | 275 | match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API |
8ab7c0d9 | 276 | "[^'+']+%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", name, s_hex); |
49d4e302 | 277 | if (match == 2) { |
7d29a247 | 278 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 279 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
cf0e5467 | 280 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
9d035200 | 281 | if (*s_hex == '\0') { |
8ff0bbd0 | 282 | ERR("Invalid probe offset %s", s_hex); |
49d4e302 | 283 | ret = CMD_ERROR; |
8f0d098b | 284 | goto end; |
0d63dd19 | 285 | } |
8ff0bbd0 | 286 | ev->attr.probe.offset = strtoul(s_hex, NULL, 0); |
cf0e5467 | 287 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); |
3000dc78 | 288 | ev->attr.probe.addr = 0; |
8f0d098b MD |
289 | goto end; |
290 | } | |
291 | ||
292 | /* Check for symbol */ | |
293 | if (isalpha(name[0])) { | |
49d4e302 | 294 | match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s", |
8ab7c0d9 | 295 | name); |
49d4e302 | 296 | if (match == 1) { |
8f0d098b | 297 | strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN); |
99497cd0 | 298 | ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
8f0d098b MD |
299 | DBG("probe symbol %s", ev->attr.probe.symbol_name); |
300 | ev->attr.probe.offset = 0; | |
301 | DBG("probe offset %" PRIu64, ev->attr.probe.offset); | |
302 | ev->attr.probe.addr = 0; | |
303 | goto end; | |
304 | } | |
0d63dd19 DG |
305 | } |
306 | ||
307 | /* Check for address */ | |
49d4e302 JRJ |
308 | match = sscanf(opt, "%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", s_hex); |
309 | if (match > 0) { | |
9d035200 | 310 | if (*s_hex == '\0') { |
8ff0bbd0 | 311 | ERR("Invalid probe address %s", s_hex); |
49d4e302 | 312 | ret = CMD_ERROR; |
8f0d098b | 313 | goto end; |
0d63dd19 | 314 | } |
8ff0bbd0 | 315 | ev->attr.probe.addr = strtoul(s_hex, NULL, 0); |
cf0e5467 | 316 | DBG("probe addr %" PRIu64, ev->attr.probe.addr); |
3000dc78 DG |
317 | ev->attr.probe.offset = 0; |
318 | memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN); | |
8f0d098b | 319 | goto end; |
0d63dd19 DG |
320 | } |
321 | ||
322 | /* No match */ | |
49d4e302 | 323 | ret = CMD_ERROR; |
0d63dd19 | 324 | |
8f0d098b | 325 | end: |
0d63dd19 DG |
326 | return ret; |
327 | } | |
328 | ||
5cdb6027 DG |
329 | /* |
330 | * Maps LOG4j loglevel from string to value | |
331 | */ | |
332 | static int loglevel_log4j_str_to_value(const char *inputstr) | |
333 | { | |
334 | int i = 0; | |
335 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
336 | ||
337 | /* | |
338 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
339 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
340 | */ | |
341 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
342 | str[i] = toupper(inputstr[i]); | |
343 | i++; | |
344 | } | |
345 | str[i] = '\0'; | |
346 | ||
347 | if (!strcmp(str, "LOG4J_OFF") || !strcmp(str, "OFF")) { | |
348 | return LTTNG_LOGLEVEL_LOG4J_OFF; | |
349 | } else if (!strcmp(str, "LOG4J_FATAL") || !strcmp(str, "FATAL")) { | |
350 | return LTTNG_LOGLEVEL_LOG4J_FATAL; | |
351 | } else if (!strcmp(str, "LOG4J_ERROR") || !strcmp(str, "ERROR")) { | |
352 | return LTTNG_LOGLEVEL_LOG4J_ERROR; | |
353 | } else if (!strcmp(str, "LOG4J_WARN") || !strcmp(str, "WARN")) { | |
354 | return LTTNG_LOGLEVEL_LOG4J_WARN; | |
355 | } else if (!strcmp(str, "LOG4J_INFO") || !strcmp(str, "INFO")) { | |
356 | return LTTNG_LOGLEVEL_LOG4J_INFO; | |
357 | } else if (!strcmp(str, "LOG4J_DEBUG") || !strcmp(str, "DEBUG")) { | |
358 | return LTTNG_LOGLEVEL_LOG4J_DEBUG; | |
359 | } else if (!strcmp(str, "LOG4J_TRACE") || !strcmp(str, "TRACE")) { | |
360 | return LTTNG_LOGLEVEL_LOG4J_TRACE; | |
361 | } else if (!strcmp(str, "LOG4J_ALL") || !strcmp(str, "ALL")) { | |
362 | return LTTNG_LOGLEVEL_LOG4J_ALL; | |
363 | } else { | |
364 | return -1; | |
365 | } | |
366 | } | |
367 | ||
b2064f54 DG |
368 | /* |
369 | * Maps JUL loglevel from string to value | |
370 | */ | |
371 | static int loglevel_jul_str_to_value(const char *inputstr) | |
372 | { | |
373 | int i = 0; | |
374 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
375 | ||
376 | /* | |
377 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
378 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
379 | */ | |
380 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
381 | str[i] = toupper(inputstr[i]); | |
382 | i++; | |
383 | } | |
384 | str[i] = '\0'; | |
385 | ||
386 | if (!strcmp(str, "JUL_OFF") || !strcmp(str, "OFF")) { | |
387 | return LTTNG_LOGLEVEL_JUL_OFF; | |
388 | } else if (!strcmp(str, "JUL_SEVERE") || !strcmp(str, "SEVERE")) { | |
389 | return LTTNG_LOGLEVEL_JUL_SEVERE; | |
390 | } else if (!strcmp(str, "JUL_WARNING") || !strcmp(str, "WARNING")) { | |
391 | return LTTNG_LOGLEVEL_JUL_WARNING; | |
392 | } else if (!strcmp(str, "JUL_INFO") || !strcmp(str, "INFO")) { | |
393 | return LTTNG_LOGLEVEL_JUL_INFO; | |
394 | } else if (!strcmp(str, "JUL_CONFIG") || !strcmp(str, "CONFIG")) { | |
395 | return LTTNG_LOGLEVEL_JUL_CONFIG; | |
396 | } else if (!strcmp(str, "JUL_FINE") || !strcmp(str, "FINE")) { | |
397 | return LTTNG_LOGLEVEL_JUL_FINE; | |
398 | } else if (!strcmp(str, "JUL_FINER") || !strcmp(str, "FINER")) { | |
399 | return LTTNG_LOGLEVEL_JUL_FINER; | |
400 | } else if (!strcmp(str, "JUL_FINEST") || !strcmp(str, "FINEST")) { | |
401 | return LTTNG_LOGLEVEL_JUL_FINEST; | |
402 | } else if (!strcmp(str, "JUL_ALL") || !strcmp(str, "ALL")) { | |
403 | return LTTNG_LOGLEVEL_JUL_ALL; | |
404 | } else { | |
405 | return -1; | |
406 | } | |
407 | } | |
408 | ||
0e115563 DG |
409 | /* |
410 | * Maps Python loglevel from string to value | |
411 | */ | |
412 | static int loglevel_python_str_to_value(const char *inputstr) | |
413 | { | |
414 | int i = 0; | |
415 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
416 | ||
417 | /* | |
418 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
419 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
420 | */ | |
421 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
422 | str[i] = toupper(inputstr[i]); | |
423 | i++; | |
424 | } | |
425 | str[i] = '\0'; | |
426 | ||
427 | if (!strcmp(str, "PYTHON_CRITICAL") || !strcmp(str, "CRITICAL")) { | |
428 | return LTTNG_LOGLEVEL_PYTHON_CRITICAL; | |
429 | } else if (!strcmp(str, "PYTHON_ERROR") || !strcmp(str, "ERROR")) { | |
430 | return LTTNG_LOGLEVEL_PYTHON_ERROR; | |
431 | } else if (!strcmp(str, "PYTHON_WARNING") || !strcmp(str, "WARNING")) { | |
432 | return LTTNG_LOGLEVEL_PYTHON_WARNING; | |
433 | } else if (!strcmp(str, "PYTHON_INFO") || !strcmp(str, "INFO")) { | |
434 | return LTTNG_LOGLEVEL_PYTHON_INFO; | |
435 | } else if (!strcmp(str, "PYTNON_DEBUG") || !strcmp(str, "DEBUG")) { | |
436 | return LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
437 | } else if (!strcmp(str, "PYTHON_NOTSET") || !strcmp(str, "NOTSET")) { | |
438 | return LTTNG_LOGLEVEL_PYTHON_NOTSET; | |
439 | } else { | |
440 | return -1; | |
441 | } | |
442 | } | |
443 | ||
8005f29a | 444 | /* |
0c8477c8 | 445 | * Maps loglevel from string to value |
8005f29a MD |
446 | */ |
447 | static | |
46839cc2 | 448 | int loglevel_str_to_value(const char *inputstr) |
8005f29a | 449 | { |
46839cc2 MD |
450 | int i = 0; |
451 | char str[LTTNG_SYMBOL_NAME_LEN]; | |
452 | ||
e051e07c DG |
453 | /* |
454 | * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is | |
455 | * added at the end of the loop so a the upper bound we avoid the overflow. | |
456 | */ | |
457 | while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') { | |
46839cc2 MD |
458 | str[i] = toupper(inputstr[i]); |
459 | i++; | |
460 | } | |
461 | str[i] = '\0'; | |
462 | if (!strcmp(str, "TRACE_EMERG") || !strcmp(str, "EMERG")) { | |
463 | return LTTNG_LOGLEVEL_EMERG; | |
464 | } else if (!strcmp(str, "TRACE_ALERT") || !strcmp(str, "ALERT")) { | |
465 | return LTTNG_LOGLEVEL_ALERT; | |
466 | } else if (!strcmp(str, "TRACE_CRIT") || !strcmp(str, "CRIT")) { | |
467 | return LTTNG_LOGLEVEL_CRIT; | |
468 | } else if (!strcmp(str, "TRACE_ERR") || !strcmp(str, "ERR")) { | |
469 | return LTTNG_LOGLEVEL_ERR; | |
470 | } else if (!strcmp(str, "TRACE_WARNING") || !strcmp(str, "WARNING")) { | |
471 | return LTTNG_LOGLEVEL_WARNING; | |
472 | } else if (!strcmp(str, "TRACE_NOTICE") || !strcmp(str, "NOTICE")) { | |
473 | return LTTNG_LOGLEVEL_NOTICE; | |
474 | } else if (!strcmp(str, "TRACE_INFO") || !strcmp(str, "INFO")) { | |
475 | return LTTNG_LOGLEVEL_INFO; | |
476 | } else if (!strcmp(str, "TRACE_DEBUG_SYSTEM") || !strcmp(str, "DEBUG_SYSTEM") || !strcmp(str, "SYSTEM")) { | |
477 | return LTTNG_LOGLEVEL_DEBUG_SYSTEM; | |
478 | } else if (!strcmp(str, "TRACE_DEBUG_PROGRAM") || !strcmp(str, "DEBUG_PROGRAM") || !strcmp(str, "PROGRAM")) { | |
479 | return LTTNG_LOGLEVEL_DEBUG_PROGRAM; | |
480 | } else if (!strcmp(str, "TRACE_DEBUG_PROCESS") || !strcmp(str, "DEBUG_PROCESS") || !strcmp(str, "PROCESS")) { | |
481 | return LTTNG_LOGLEVEL_DEBUG_PROCESS; | |
482 | } else if (!strcmp(str, "TRACE_DEBUG_MODULE") || !strcmp(str, "DEBUG_MODULE") || !strcmp(str, "MODULE")) { | |
483 | return LTTNG_LOGLEVEL_DEBUG_MODULE; | |
484 | } else if (!strcmp(str, "TRACE_DEBUG_UNIT") || !strcmp(str, "DEBUG_UNIT") || !strcmp(str, "UNIT")) { | |
485 | return LTTNG_LOGLEVEL_DEBUG_UNIT; | |
486 | } else if (!strcmp(str, "TRACE_DEBUG_FUNCTION") || !strcmp(str, "DEBUG_FUNCTION") || !strcmp(str, "FUNCTION")) { | |
487 | return LTTNG_LOGLEVEL_DEBUG_FUNCTION; | |
488 | } else if (!strcmp(str, "TRACE_DEBUG_LINE") || !strcmp(str, "DEBUG_LINE") || !strcmp(str, "LINE")) { | |
489 | return LTTNG_LOGLEVEL_DEBUG_LINE; | |
490 | } else if (!strcmp(str, "TRACE_DEBUG") || !strcmp(str, "DEBUG")) { | |
491 | return LTTNG_LOGLEVEL_DEBUG; | |
8005f29a MD |
492 | } else { |
493 | return -1; | |
494 | } | |
495 | } | |
496 | ||
85076754 MD |
497 | static |
498 | const char *print_channel_name(const char *name) | |
499 | { | |
500 | return name ? : DEFAULT_CHANNEL_NAME; | |
501 | } | |
502 | ||
503 | static | |
504 | const char *print_raw_channel_name(const char *name) | |
505 | { | |
506 | return name ? : "<default>"; | |
507 | } | |
508 | ||
89476427 JRJ |
509 | /* |
510 | * Mi print exlcusion list | |
511 | */ | |
512 | static | |
513 | int mi_print_exclusion(int count, char **names) | |
514 | { | |
515 | int i, ret; | |
516 | ||
517 | assert(writer); | |
518 | ||
519 | if (count == 0) { | |
520 | ret = 0; | |
521 | goto end; | |
522 | } | |
523 | ret = mi_lttng_writer_open_element(writer, config_element_exclusions); | |
524 | if (ret) { | |
525 | goto end; | |
526 | } | |
527 | ||
528 | for (i = 0; i < count; i++) { | |
529 | ret = mi_lttng_writer_write_element_string(writer, | |
530 | config_element_exclusion, names[i]); | |
531 | if (ret) { | |
532 | goto end; | |
533 | } | |
534 | } | |
535 | ||
536 | /* Close exclusions element */ | |
537 | ret = mi_lttng_writer_close_element(writer); | |
538 | ||
539 | end: | |
540 | return ret; | |
541 | } | |
542 | ||
9c48cab3 JI |
543 | /* |
544 | * Return allocated string for pretty-printing exclusion names. | |
545 | */ | |
546 | static | |
547 | char *print_exclusions(int count, char **names) | |
548 | { | |
549 | int length = 0; | |
550 | int i; | |
551 | const char *preamble = " excluding "; | |
552 | char *ret; | |
553 | ||
554 | if (count == 0) { | |
555 | return strdup(""); | |
556 | } | |
557 | ||
558 | /* calculate total required length */ | |
559 | for (i = 0; i < count; i++) { | |
560 | length += strlen(names[i]) + 1; | |
561 | } | |
562 | ||
563 | /* add length of preamble + one for NUL - one for last (missing) comma */ | |
564 | length += strlen(preamble); | |
565 | ret = malloc(length); | |
566 | strncpy(ret, preamble, length); | |
567 | for (i = 0; i < count; i++) { | |
568 | strcat(ret, names[i]); | |
569 | if (i != count - 1) { | |
570 | strcat(ret, ","); | |
571 | } | |
572 | } | |
89476427 | 573 | |
9c48cab3 JI |
574 | return ret; |
575 | } | |
576 | ||
748bde76 JI |
577 | /* |
578 | * Compare list of exclusions against an event name. | |
579 | * Return a list of legal exclusion names. | |
580 | * Produce an error or a warning about others (depending on the situation) | |
581 | */ | |
582 | static | |
583 | int check_exclusion_subsets(const char *event_name, | |
584 | const char *exclusions, | |
585 | int *exclusion_count_ptr, | |
586 | char ***exclusion_list_ptr) | |
587 | { | |
588 | const char *excluder_ptr; | |
589 | const char *event_ptr; | |
590 | const char *next_excluder; | |
591 | int excluder_length; | |
592 | int exclusion_count = 0; | |
593 | char **exclusion_list = NULL; | |
594 | int ret = CMD_SUCCESS; | |
595 | ||
596 | if (event_name[strlen(event_name) - 1] != '*') { | |
597 | ERR("Event %s: Excluders can only be used with wildcarded events", event_name); | |
598 | goto error; | |
599 | } | |
600 | ||
601 | next_excluder = exclusions; | |
602 | while (*next_excluder != 0) { | |
603 | event_ptr = event_name; | |
604 | excluder_ptr = next_excluder; | |
605 | excluder_length = strcspn(next_excluder, ","); | |
606 | ||
607 | /* Scan both the excluder and the event letter by letter */ | |
608 | while (1) { | |
609 | char e, x; | |
610 | ||
611 | e = *event_ptr; | |
612 | x = *excluder_ptr; | |
613 | ||
614 | if (x == '*') { | |
615 | /* Event is a subset of the excluder */ | |
616 | ERR("Event %s: %.*s excludes all events from %s", | |
617 | event_name, | |
618 | excluder_length, | |
619 | next_excluder, | |
620 | event_name); | |
621 | goto error; | |
622 | } | |
623 | if (e == '*') { | |
624 | /* Excluder is a proper subset of event */ | |
625 | exclusion_count++; | |
626 | exclusion_list = realloc(exclusion_list, sizeof(char **) * exclusion_count); | |
627 | exclusion_list[exclusion_count - 1] = strndup(next_excluder, excluder_length); | |
628 | ||
629 | break; | |
630 | } | |
631 | if (x != e) { | |
632 | /* Excluder and event sets have no common elements */ | |
633 | WARN("Event %s: %.*s does not exclude any events from %s", | |
634 | event_name, | |
635 | excluder_length, | |
636 | next_excluder, | |
637 | event_name); | |
638 | break; | |
639 | } | |
640 | excluder_ptr++; | |
641 | event_ptr++; | |
642 | } | |
643 | /* next excluder */ | |
644 | next_excluder += excluder_length; | |
645 | if (*next_excluder == ',') { | |
646 | next_excluder++; | |
647 | } | |
648 | } | |
649 | goto end; | |
650 | error: | |
651 | while (exclusion_count--) { | |
652 | free(exclusion_list[exclusion_count]); | |
653 | } | |
654 | if (exclusion_list != NULL) { | |
655 | free(exclusion_list); | |
656 | } | |
657 | exclusion_list = NULL; | |
658 | exclusion_count = 0; | |
659 | ret = CMD_ERROR; | |
660 | end: | |
661 | *exclusion_count_ptr = exclusion_count; | |
662 | *exclusion_list_ptr = exclusion_list; | |
663 | return ret; | |
664 | } | |
f3ed775e | 665 | /* |
6181537c | 666 | * Enabling event using the lttng API. |
89476427 | 667 | * Note: in case of error only the last error code will be return. |
f3ed775e | 668 | */ |
cd80958d | 669 | static int enable_events(char *session_name) |
f3ed775e | 670 | { |
89476427 JRJ |
671 | int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS; |
672 | int error_holder = CMD_SUCCESS, warn = 0, error = 0, success = 1; | |
b73d0b29 | 673 | char *event_name, *channel_name = NULL; |
f3ed775e | 674 | struct lttng_event ev; |
7d29a247 | 675 | struct lttng_domain dom; |
7ed70bc9 JI |
676 | int exclusion_count = 0; |
677 | char **exclusion_list = NULL; | |
f3ed775e | 678 | |
441c16a7 MD |
679 | memset(&ev, 0, sizeof(ev)); |
680 | memset(&dom, 0, sizeof(dom)); | |
681 | ||
53a80697 MD |
682 | if (opt_kernel) { |
683 | if (opt_filter) { | |
684 | ERR("Filter not implement for kernel tracing yet"); | |
685 | ret = CMD_ERROR; | |
686 | goto error; | |
687 | } | |
67b58630 JG |
688 | if (opt_loglevel) { |
689 | WARN("Kernel loglevels are not supported."); | |
690 | } | |
53a80697 MD |
691 | } |
692 | ||
7d29a247 DG |
693 | /* Create lttng domain */ |
694 | if (opt_kernel) { | |
695 | dom.type = LTTNG_DOMAIN_KERNEL; | |
7972aab2 | 696 | dom.buf_type = LTTNG_BUFFER_GLOBAL; |
d78d6610 | 697 | } else if (opt_userspace) { |
2bdd86d4 | 698 | dom.type = LTTNG_DOMAIN_UST; |
7972aab2 | 699 | /* Default. */ |
8692d4e5 | 700 | dom.buf_type = LTTNG_BUFFER_PER_UID; |
b9dfb167 DG |
701 | } else if (opt_jul) { |
702 | dom.type = LTTNG_DOMAIN_JUL; | |
703 | /* Default. */ | |
704 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
5cdb6027 DG |
705 | } else if (opt_log4j) { |
706 | dom.type = LTTNG_DOMAIN_LOG4J; | |
707 | /* Default. */ | |
708 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
0e115563 DG |
709 | } else if (opt_python) { |
710 | dom.type = LTTNG_DOMAIN_PYTHON; | |
711 | /* Default. */ | |
712 | dom.buf_type = LTTNG_BUFFER_PER_UID; | |
6181537c | 713 | } else { |
b9dfb167 | 714 | print_missing_domain(); |
d16c1a4c | 715 | ret = CMD_ERROR; |
6181537c | 716 | goto error; |
2bdd86d4 | 717 | } |
7d29a247 | 718 | |
d5dd17fd JI |
719 | if (opt_kernel && opt_exclude) { |
720 | ERR("Event name exclusions are not yet implemented for kernel events"); | |
721 | ret = CMD_ERROR; | |
722 | goto error; | |
723 | } | |
724 | ||
85076754 | 725 | channel_name = opt_channel_name; |
ae856491 | 726 | |
cd80958d DG |
727 | handle = lttng_create_handle(session_name, &dom); |
728 | if (handle == NULL) { | |
729 | ret = -1; | |
730 | goto error; | |
731 | } | |
1aef21b6 | 732 | |
89476427 JRJ |
733 | /* Prepare Mi */ |
734 | if (lttng_opt_mi) { | |
735 | /* Open a events element */ | |
736 | ret = mi_lttng_writer_open_element(writer, config_element_events); | |
737 | if (ret) { | |
738 | ret = CMD_ERROR; | |
739 | goto error; | |
740 | } | |
741 | } | |
742 | ||
cd80958d | 743 | if (opt_enable_all) { |
8c9ae521 | 744 | /* Default setup for enable all */ |
75e8c5ab MD |
745 | if (opt_kernel) { |
746 | ev.type = opt_event_type; | |
747 | ev.name[0] = '\0'; | |
300b8fd5 MD |
748 | /* kernel loglevels not implemented */ |
749 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; | |
75e8c5ab MD |
750 | } else { |
751 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
752 | strcpy(ev.name, "*"); | |
300b8fd5 MD |
753 | ev.loglevel_type = opt_loglevel_type; |
754 | if (opt_loglevel) { | |
0e115563 | 755 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 DG |
756 | if (opt_userspace) { |
757 | ev.loglevel = loglevel_str_to_value(opt_loglevel); | |
758 | } else if (opt_jul) { | |
759 | ev.loglevel = loglevel_jul_str_to_value(opt_loglevel); | |
5cdb6027 DG |
760 | } else if (opt_log4j) { |
761 | ev.loglevel = loglevel_log4j_str_to_value(opt_loglevel); | |
0e115563 DG |
762 | } else if (opt_python) { |
763 | ev.loglevel = loglevel_python_str_to_value(opt_loglevel); | |
b2064f54 | 764 | } |
300b8fd5 MD |
765 | if (ev.loglevel == -1) { |
766 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 767 | ret = -LTTNG_ERR_INVALID; |
300b8fd5 MD |
768 | goto error; |
769 | } | |
22e25b71 | 770 | } else { |
0e115563 | 771 | assert(opt_userspace || opt_jul || opt_log4j || opt_python); |
b2064f54 DG |
772 | if (opt_userspace) { |
773 | ev.loglevel = -1; | |
5cdb6027 | 774 | } else if (opt_jul || opt_log4j) { |
b2064f54 | 775 | ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL; |
0e115563 DG |
776 | } else if (opt_python) { |
777 | ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
b2064f54 | 778 | } |
300b8fd5 | 779 | } |
75e8c5ab | 780 | } |
8c9ae521 | 781 | |
7ed70bc9 JI |
782 | if (opt_exclude) { |
783 | ret = check_exclusion_subsets("*", opt_exclude, | |
784 | &exclusion_count, &exclusion_list); | |
785 | if (ret == CMD_ERROR) { | |
786 | goto error; | |
787 | } | |
89476427 | 788 | ev.exclusion = 1; |
7ed70bc9 | 789 | } |
025faf73 | 790 | if (!opt_filter) { |
7ed70bc9 JI |
791 | ret = lttng_enable_event_with_exclusions(handle, |
792 | &ev, channel_name, | |
793 | NULL, | |
794 | exclusion_count, exclusion_list); | |
025faf73 DG |
795 | if (ret < 0) { |
796 | switch (-ret) { | |
797 | case LTTNG_ERR_KERN_EVENT_EXIST: | |
798 | WARN("Kernel events already enabled (channel %s, session %s)", | |
85076754 | 799 | print_channel_name(channel_name), session_name); |
89476427 | 800 | warn = 1; |
025faf73 | 801 | break; |
45d5d421 CB |
802 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
803 | { | |
804 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
805 | ERR("Events: %s (channel %s, session %s)", | |
806 | msg, | |
807 | print_channel_name(channel_name), | |
808 | session_name); | |
809 | error = 1; | |
810 | break; | |
811 | } | |
025faf73 DG |
812 | default: |
813 | ERR("Events: %s (channel %s, session %s)", | |
85076754 MD |
814 | lttng_strerror(ret), |
815 | ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
816 | ? print_raw_channel_name(channel_name) | |
817 | : print_channel_name(channel_name), | |
818 | session_name); | |
89476427 | 819 | error = 1; |
025faf73 DG |
820 | break; |
821 | } | |
822 | goto end; | |
42224349 | 823 | } |
8c9ae521 | 824 | |
025faf73 DG |
825 | switch (opt_event_type) { |
826 | case LTTNG_EVENT_TRACEPOINT: | |
67b58630 | 827 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9c48cab3 JI |
828 | char *exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
829 | MSG("All %s tracepoints%s are enabled in channel %s for loglevel %s", | |
b9dfb167 | 830 | get_domain_str(dom.type), |
9c48cab3 | 831 | exclusion_string, |
85076754 | 832 | print_channel_name(channel_name), |
025faf73 | 833 | opt_loglevel); |
9c48cab3 | 834 | free(exclusion_string); |
025faf73 | 835 | } else { |
9c48cab3 JI |
836 | char *exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
837 | MSG("All %s tracepoints%s are enabled in channel %s", | |
b9dfb167 | 838 | get_domain_str(dom.type), |
9c48cab3 | 839 | exclusion_string, |
85076754 | 840 | print_channel_name(channel_name)); |
9c48cab3 | 841 | free(exclusion_string); |
025faf73 DG |
842 | } |
843 | break; | |
844 | case LTTNG_EVENT_SYSCALL: | |
845 | if (opt_kernel) { | |
6e911cad MD |
846 | MSG("All %s system calls are enabled in channel %s", |
847 | get_domain_str(dom.type), | |
85076754 | 848 | print_channel_name(channel_name)); |
025faf73 DG |
849 | } |
850 | break; | |
851 | case LTTNG_EVENT_ALL: | |
67b58630 | 852 | if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) { |
9c48cab3 JI |
853 | char *exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
854 | MSG("All %s events%s are enabled in channel %s for loglevel %s", | |
b9dfb167 | 855 | get_domain_str(dom.type), |
9c48cab3 | 856 | exclusion_string, |
85076754 | 857 | print_channel_name(channel_name), |
025faf73 | 858 | opt_loglevel); |
9c48cab3 | 859 | free(exclusion_string); |
025faf73 | 860 | } else { |
9c48cab3 JI |
861 | char *exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
862 | MSG("All %s events%s are enabled in channel %s", | |
b9dfb167 | 863 | get_domain_str(dom.type), |
9c48cab3 | 864 | exclusion_string, |
85076754 | 865 | print_channel_name(channel_name)); |
9c48cab3 | 866 | free(exclusion_string); |
025faf73 DG |
867 | } |
868 | break; | |
869 | default: | |
870 | /* | |
871 | * We should not be here since lttng_enable_event should have | |
872 | * failed on the event type. | |
873 | */ | |
874 | goto error; | |
57064ada | 875 | } |
f3ed775e | 876 | } |
89476427 | 877 | |
025faf73 | 878 | if (opt_filter) { |
89476427 | 879 | command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name, |
7ed70bc9 | 880 | opt_filter, exclusion_count, exclusion_list); |
89476427 JRJ |
881 | if (command_ret < 0) { |
882 | switch (-command_ret) { | |
16363652 | 883 | case LTTNG_ERR_FILTER_EXIST: |
85076754 | 884 | WARN("Filter on all events is already enabled" |
16363652 | 885 | " (channel %s, session %s)", |
85076754 | 886 | print_channel_name(channel_name), session_name); |
89476427 | 887 | warn = 1; |
16363652 | 888 | break; |
45d5d421 CB |
889 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
890 | { | |
891 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
892 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", | |
893 | msg, | |
894 | print_channel_name(channel_name), | |
895 | session_name, opt_filter); | |
896 | error = 1; | |
897 | break; | |
898 | } | |
16363652 | 899 | default: |
85076754 | 900 | ERR("All events: %s (channel %s, session %s, filter \'%s\')", |
da3d7d0e JRJ |
901 | lttng_strerror(command_ret), |
902 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
903 | ? print_raw_channel_name(channel_name) |
904 | : print_channel_name(channel_name), | |
905 | session_name, opt_filter); | |
89476427 | 906 | error = 1; |
16363652 DG |
907 | break; |
908 | } | |
89476427 | 909 | error_holder = command_ret; |
16363652 | 910 | } else { |
89476427 | 911 | ev.filter = 1; |
16363652 DG |
912 | MSG("Filter '%s' successfully set", opt_filter); |
913 | } | |
914 | } | |
89476427 JRJ |
915 | |
916 | if (lttng_opt_mi) { | |
917 | /* The wildcard * is used for kernel and ust domain to | |
918 | * represent ALL. We copy * in event name to force the wildcard use | |
919 | * for kernel domain | |
920 | * | |
921 | * Note: this is strictly for semantic and printing while in | |
922 | * machine interface mode. | |
923 | */ | |
924 | strcpy(ev.name, "*"); | |
925 | ||
926 | /* If we reach here the events are enabled */ | |
927 | if (!error && !warn) { | |
928 | ev.enabled = 1; | |
929 | } else { | |
930 | ev.enabled = 0; | |
931 | success = 0; | |
932 | } | |
970d848b | 933 | ret = mi_lttng_event(writer, &ev, 1, handle->domain.type); |
89476427 JRJ |
934 | if (ret) { |
935 | ret = CMD_ERROR; | |
936 | goto error; | |
937 | } | |
938 | ||
939 | /* print exclusion */ | |
940 | ret = mi_print_exclusion(exclusion_count, exclusion_list); | |
941 | if (ret) { | |
942 | ret = CMD_ERROR; | |
943 | goto error; | |
944 | } | |
945 | ||
946 | /* Success ? */ | |
947 | ret = mi_lttng_writer_write_element_bool(writer, | |
948 | mi_lttng_element_command_success, success); | |
949 | if (ret) { | |
950 | ret = CMD_ERROR; | |
951 | goto error; | |
952 | } | |
953 | ||
954 | /* Close event element */ | |
955 | ret = mi_lttng_writer_close_element(writer); | |
956 | if (ret) { | |
957 | ret = CMD_ERROR; | |
958 | goto error; | |
959 | } | |
960 | } | |
961 | ||
8c9ae521 | 962 | goto end; |
f3ed775e DG |
963 | } |
964 | ||
965 | /* Strip event list */ | |
966 | event_name = strtok(opt_event_list, ","); | |
967 | while (event_name != NULL) { | |
6181537c DG |
968 | /* Copy name and type of the event */ |
969 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
970 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
971 | ev.type = opt_event_type; | |
972 | ||
f3ed775e DG |
973 | /* Kernel tracer action */ |
974 | if (opt_kernel) { | |
975 | DBG("Enabling kernel event %s for channel %s", | |
85076754 MD |
976 | event_name, |
977 | print_channel_name(channel_name)); | |
f3ed775e DG |
978 | |
979 | switch (opt_event_type) { | |
7a3d1328 MD |
980 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ |
981 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
982 | /* Fall-through */ | |
e6ddca71 | 983 | case LTTNG_EVENT_TRACEPOINT: |
f3ed775e | 984 | break; |
7d29a247 | 985 | case LTTNG_EVENT_PROBE: |
cf0e5467 | 986 | ret = parse_probe_opts(&ev, opt_probe); |
49d4e302 | 987 | if (ret) { |
cf0e5467 | 988 | ERR("Unable to parse probe options"); |
0d63dd19 DG |
989 | ret = 0; |
990 | goto error; | |
991 | } | |
f3ed775e DG |
992 | break; |
993 | case LTTNG_EVENT_FUNCTION: | |
8f0d098b | 994 | ret = parse_probe_opts(&ev, opt_function); |
49d4e302 | 995 | if (ret) { |
8f0d098b MD |
996 | ERR("Unable to parse function probe options"); |
997 | ret = 0; | |
998 | goto error; | |
999 | } | |
1000 | break; | |
1001 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
6181537c DG |
1002 | strncpy(ev.attr.ftrace.symbol_name, opt_function_entry_symbol, |
1003 | LTTNG_SYMBOL_NAME_LEN); | |
99497cd0 | 1004 | ev.attr.ftrace.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
f3ed775e | 1005 | break; |
a54bd42d | 1006 | case LTTNG_EVENT_SYSCALL: |
c6aa2d41 MD |
1007 | ev.type = LTTNG_EVENT_SYSCALL; |
1008 | break; | |
f3ed775e | 1009 | default: |
1ab1ea0b | 1010 | ret = CMD_UNDEFINED; |
f3ed775e DG |
1011 | goto error; |
1012 | } | |
0cda4f28 | 1013 | |
0cda4f28 | 1014 | /* kernel loglevels not implemented */ |
8005f29a | 1015 | ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL; |
f3ed775e | 1016 | } else if (opt_userspace) { /* User-space tracer action */ |
d78d6610 | 1017 | #if 0 |
e14f64a8 DG |
1018 | if (opt_cmd_name != NULL || opt_pid) { |
1019 | MSG("Only supporting tracing all UST processes (-u) for now."); | |
1ab1ea0b | 1020 | ret = CMD_UNDEFINED; |
2bdd86d4 MD |
1021 | goto error; |
1022 | } | |
d78d6610 | 1023 | #endif |
6181537c | 1024 | |
300b8fd5 | 1025 | DBG("Enabling UST event %s for channel %s, loglevel %s", event_name, |
85076754 | 1026 | print_channel_name(channel_name), opt_loglevel ? : "<all>"); |
2bdd86d4 MD |
1027 | |
1028 | switch (opt_event_type) { | |
1029 | case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */ | |
2bdd86d4 MD |
1030 | /* Fall-through */ |
1031 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e MD |
1032 | /* Copy name and type of the event */ |
1033 | ev.type = LTTNG_EVENT_TRACEPOINT; | |
1034 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
1035 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
2bdd86d4 MD |
1036 | break; |
1037 | case LTTNG_EVENT_PROBE: | |
1038 | case LTTNG_EVENT_FUNCTION: | |
1039 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
1040 | case LTTNG_EVENT_SYSCALL: | |
1041 | default: | |
cc62c0c0 | 1042 | ERR("Event type not available for user-space tracing"); |
4ce78777 | 1043 | ret = CMD_UNSUPPORTED; |
2bdd86d4 MD |
1044 | goto error; |
1045 | } | |
0cda4f28 | 1046 | |
7ed70bc9 | 1047 | if (opt_exclude) { |
89476427 | 1048 | ev.exclusion = 1; |
d5dd17fd JI |
1049 | if (opt_event_type != LTTNG_EVENT_ALL && opt_event_type != LTTNG_EVENT_TRACEPOINT) { |
1050 | ERR("Exclusion option can only be used with tracepoint events"); | |
1051 | ret = CMD_ERROR; | |
1052 | goto error; | |
1053 | } | |
7ed70bc9 JI |
1054 | /* Free previously allocated items */ |
1055 | if (exclusion_list != NULL) { | |
1056 | while (exclusion_count--) { | |
1057 | free(exclusion_list[exclusion_count]); | |
1058 | } | |
1059 | free(exclusion_list); | |
1060 | exclusion_list = NULL; | |
1061 | } | |
1062 | /* Check for proper subsets */ | |
1063 | ret = check_exclusion_subsets(event_name, opt_exclude, | |
1064 | &exclusion_count, &exclusion_list); | |
1065 | if (ret == CMD_ERROR) { | |
1066 | goto error; | |
1067 | } | |
1068 | } | |
1069 | ||
0cda4f28 | 1070 | ev.loglevel_type = opt_loglevel_type; |
ed7f4083 | 1071 | if (opt_loglevel) { |
8005f29a MD |
1072 | ev.loglevel = loglevel_str_to_value(opt_loglevel); |
1073 | if (ev.loglevel == -1) { | |
1074 | ERR("Unknown loglevel %s", opt_loglevel); | |
2f70b271 | 1075 | ret = -LTTNG_ERR_INVALID; |
8005f29a MD |
1076 | goto error; |
1077 | } | |
22e25b71 MD |
1078 | } else { |
1079 | ev.loglevel = -1; | |
ed7f4083 | 1080 | } |
0e115563 | 1081 | } else if (opt_jul || opt_log4j || opt_python) { |
b9dfb167 DG |
1082 | if (opt_event_type != LTTNG_EVENT_ALL && |
1083 | opt_event_type != LTTNG_EVENT_TRACEPOINT) { | |
5cdb6027 | 1084 | ERR("Event type not supported for domain."); |
b9dfb167 DG |
1085 | ret = CMD_UNSUPPORTED; |
1086 | goto error; | |
1087 | } | |
b2064f54 DG |
1088 | |
1089 | ev.loglevel_type = opt_loglevel_type; | |
1090 | if (opt_loglevel) { | |
5cdb6027 DG |
1091 | if (opt_jul) { |
1092 | ev.loglevel = loglevel_jul_str_to_value(opt_loglevel); | |
1093 | } else if (opt_log4j) { | |
1094 | ev.loglevel = loglevel_log4j_str_to_value(opt_loglevel); | |
0e115563 DG |
1095 | } else if (opt_python) { |
1096 | ev.loglevel = loglevel_python_str_to_value(opt_loglevel); | |
5cdb6027 | 1097 | } |
b2064f54 DG |
1098 | if (ev.loglevel == -1) { |
1099 | ERR("Unknown loglevel %s", opt_loglevel); | |
1100 | ret = -LTTNG_ERR_INVALID; | |
1101 | goto error; | |
1102 | } | |
1103 | } else { | |
5cdb6027 DG |
1104 | if (opt_jul) { |
1105 | ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL; | |
1106 | } else if (opt_log4j) { | |
1107 | ev.loglevel = LTTNG_LOGLEVEL_LOG4J_ALL; | |
0e115563 DG |
1108 | } else if (opt_python) { |
1109 | ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG; | |
5cdb6027 | 1110 | } |
b2064f54 | 1111 | } |
b9dfb167 DG |
1112 | ev.type = LTTNG_EVENT_TRACEPOINT; |
1113 | strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN); | |
1114 | ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; | |
f3ed775e | 1115 | } else { |
b9dfb167 | 1116 | print_missing_domain(); |
300b8fd5 | 1117 | ret = CMD_ERROR; |
f3ed775e DG |
1118 | goto error; |
1119 | } | |
1120 | ||
025faf73 | 1121 | if (!opt_filter) { |
9c48cab3 JI |
1122 | char *exclusion_string; |
1123 | ||
89476427 | 1124 | command_ret = lttng_enable_event_with_exclusions(handle, |
7ed70bc9 JI |
1125 | &ev, channel_name, |
1126 | NULL, exclusion_count, exclusion_list); | |
9c48cab3 | 1127 | exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
89476427 | 1128 | if (command_ret < 0) { |
025faf73 | 1129 | /* Turn ret to positive value to handle the positive error code */ |
89476427 | 1130 | switch (-command_ret) { |
025faf73 | 1131 | case LTTNG_ERR_KERN_EVENT_EXIST: |
9c48cab3 | 1132 | WARN("Kernel event %s%s already enabled (channel %s, session %s)", |
85076754 | 1133 | event_name, |
9c48cab3 | 1134 | exclusion_string, |
85076754 | 1135 | print_channel_name(channel_name), session_name); |
89476427 | 1136 | warn = 1; |
025faf73 | 1137 | break; |
45d5d421 CB |
1138 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1139 | { | |
1140 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1141 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, | |
1142 | exclusion_string, | |
1143 | msg, | |
1144 | print_channel_name(channel_name), | |
1145 | session_name); | |
1146 | error = 1; | |
1147 | break; | |
1148 | } | |
025faf73 | 1149 | default: |
9c48cab3 JI |
1150 | ERR("Event %s%s: %s (channel %s, session %s)", event_name, |
1151 | exclusion_string, | |
da3d7d0e JRJ |
1152 | lttng_strerror(command_ret), |
1153 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1154 | ? print_raw_channel_name(channel_name) |
1155 | : print_channel_name(channel_name), | |
1156 | session_name); | |
89476427 | 1157 | error = 1; |
025faf73 DG |
1158 | break; |
1159 | } | |
89476427 | 1160 | error_holder = command_ret; |
025faf73 | 1161 | } else { |
5cdb6027 DG |
1162 | /* So we don't print the default channel name for agent domain. */ |
1163 | if (dom.type == LTTNG_DOMAIN_JUL || | |
1164 | dom.type == LTTNG_DOMAIN_LOG4J) { | |
49ceaa70 DG |
1165 | MSG("%s event %s%s enabled.", |
1166 | get_domain_str(dom.type), event_name, | |
1167 | exclusion_string); | |
1168 | } else { | |
1169 | MSG("%s event %s%s created in channel %s", | |
1170 | get_domain_str(dom.type), event_name, | |
1171 | exclusion_string, | |
1172 | print_channel_name(channel_name)); | |
1173 | } | |
42224349 | 1174 | } |
9c48cab3 | 1175 | free(exclusion_string); |
6181537c | 1176 | } |
025faf73 DG |
1177 | |
1178 | if (opt_filter) { | |
9c48cab3 JI |
1179 | char *exclusion_string; |
1180 | ||
89476427 JRJ |
1181 | /* Filter present */ |
1182 | ev.filter = 1; | |
1183 | ||
1184 | command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name, | |
7ed70bc9 | 1185 | opt_filter, exclusion_count, exclusion_list); |
9c48cab3 JI |
1186 | exclusion_string = print_exclusions(exclusion_count, exclusion_list); |
1187 | ||
89476427 JRJ |
1188 | if (command_ret < 0) { |
1189 | switch (-command_ret) { | |
7671f53c | 1190 | case LTTNG_ERR_FILTER_EXIST: |
9c48cab3 | 1191 | WARN("Filter on event %s%s is already enabled" |
7671f53c | 1192 | " (channel %s, session %s)", |
85076754 | 1193 | event_name, |
9c48cab3 | 1194 | exclusion_string, |
85076754 | 1195 | print_channel_name(channel_name), session_name); |
89476427 | 1196 | warn = 1; |
7671f53c | 1197 | break; |
45d5d421 CB |
1198 | case LTTNG_ERR_TRACE_ALREADY_STARTED: |
1199 | { | |
1200 | const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once."; | |
1201 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name, | |
1202 | exclusion_string, | |
1203 | msg, | |
1204 | print_channel_name(channel_name), | |
1205 | session_name, opt_filter); | |
1206 | error = 1; | |
1207 | break; | |
1208 | } | |
7671f53c | 1209 | default: |
9c48cab3 JI |
1210 | ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name, |
1211 | exclusion_string, | |
da3d7d0e JRJ |
1212 | lttng_strerror(command_ret), |
1213 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
85076754 MD |
1214 | ? print_raw_channel_name(channel_name) |
1215 | : print_channel_name(channel_name), | |
1216 | session_name, opt_filter); | |
89476427 | 1217 | error = 1; |
7671f53c CB |
1218 | break; |
1219 | } | |
89476427 JRJ |
1220 | error_holder = command_ret; |
1221 | ||
16363652 | 1222 | } else { |
9c48cab3 JI |
1223 | MSG("Event %s%s: Filter '%s' successfully set", |
1224 | event_name, exclusion_string, | |
1225 | opt_filter); | |
53a80697 | 1226 | } |
9c48cab3 | 1227 | free(exclusion_string); |
53a80697 | 1228 | } |
6181537c | 1229 | |
89476427 JRJ |
1230 | if (lttng_opt_mi) { |
1231 | if (command_ret) { | |
1232 | success = 0; | |
1233 | ev.enabled = 0; | |
1234 | } else { | |
1235 | ev.enabled = 1; | |
1236 | } | |
1237 | ||
970d848b | 1238 | ret = mi_lttng_event(writer, &ev, 1, handle->domain.type); |
89476427 JRJ |
1239 | if (ret) { |
1240 | ret = CMD_ERROR; | |
1241 | goto error; | |
1242 | } | |
1243 | ||
1244 | /* print exclusion */ | |
1245 | ret = mi_print_exclusion(exclusion_count, exclusion_list); | |
1246 | if (ret) { | |
1247 | ret = CMD_ERROR; | |
1248 | goto error; | |
1249 | } | |
1250 | ||
1251 | /* Success ? */ | |
1252 | ret = mi_lttng_writer_write_element_bool(writer, | |
1253 | mi_lttng_element_command_success, success); | |
1254 | if (ret) { | |
1255 | ret = CMD_ERROR; | |
1256 | goto end; | |
1257 | } | |
1258 | ||
1259 | /* Close event element */ | |
1260 | ret = mi_lttng_writer_close_element(writer); | |
1261 | if (ret) { | |
1262 | ret = CMD_ERROR; | |
1263 | goto end; | |
1264 | } | |
1265 | } | |
1266 | ||
f3ed775e DG |
1267 | /* Next event */ |
1268 | event_name = strtok(NULL, ","); | |
89476427 JRJ |
1269 | /* Reset warn, error and success */ |
1270 | success = 1; | |
f3ed775e DG |
1271 | } |
1272 | ||
8c9ae521 | 1273 | end: |
89476427 JRJ |
1274 | /* Close Mi */ |
1275 | if (lttng_opt_mi) { | |
1276 | /* Close events element */ | |
1277 | ret = mi_lttng_writer_close_element(writer); | |
1278 | if (ret) { | |
1279 | ret = CMD_ERROR; | |
1280 | goto error; | |
1281 | } | |
1282 | } | |
f3ed775e | 1283 | error: |
ae856491 DG |
1284 | if (warn) { |
1285 | ret = CMD_WARNING; | |
1286 | } | |
89476427 JRJ |
1287 | if (error) { |
1288 | ret = CMD_ERROR; | |
1289 | } | |
cd80958d DG |
1290 | lttng_destroy_handle(handle); |
1291 | ||
7ed70bc9 JI |
1292 | if (exclusion_list != NULL) { |
1293 | while (exclusion_count--) { | |
1294 | free(exclusion_list[exclusion_count]); | |
1295 | } | |
1296 | free(exclusion_list); | |
1297 | } | |
1298 | ||
89476427 JRJ |
1299 | /* Overwrite ret with error_holder if there was an actual error with |
1300 | * enabling an event. | |
1301 | */ | |
1302 | ret = error_holder ? error_holder : ret; | |
1303 | ||
f3ed775e DG |
1304 | return ret; |
1305 | } | |
1306 | ||
1307 | /* | |
6181537c | 1308 | * Add event to trace session |
f3ed775e DG |
1309 | */ |
1310 | int cmd_enable_events(int argc, const char **argv) | |
1311 | { | |
89476427 | 1312 | int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1; |
f3ed775e | 1313 | static poptContext pc; |
cd80958d | 1314 | char *session_name = NULL; |
de044b7a | 1315 | int event_type = -1; |
f3ed775e DG |
1316 | |
1317 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1318 | poptReadDefaultConfig(pc, 0); | |
1319 | ||
1320 | /* Default event type */ | |
7a3d1328 | 1321 | opt_event_type = LTTNG_EVENT_ALL; |
f3ed775e DG |
1322 | |
1323 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1324 | switch (opt) { | |
1325 | case OPT_HELP: | |
ca1c3607 | 1326 | usage(stdout); |
f3ed775e | 1327 | goto end; |
f3ed775e | 1328 | case OPT_TRACEPOINT: |
e6ddca71 | 1329 | opt_event_type = LTTNG_EVENT_TRACEPOINT; |
f3ed775e | 1330 | break; |
cf0e5467 | 1331 | case OPT_PROBE: |
7d29a247 | 1332 | opt_event_type = LTTNG_EVENT_PROBE; |
f3ed775e DG |
1333 | break; |
1334 | case OPT_FUNCTION: | |
1335 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
8f0d098b MD |
1336 | break; |
1337 | case OPT_FUNCTION_ENTRY: | |
1338 | opt_event_type = LTTNG_EVENT_FUNCTION_ENTRY; | |
f3ed775e | 1339 | break; |
a54bd42d MD |
1340 | case OPT_SYSCALL: |
1341 | opt_event_type = LTTNG_EVENT_SYSCALL; | |
0133c199 | 1342 | break; |
eeac7d46 MD |
1343 | case OPT_USERSPACE: |
1344 | opt_userspace = 1; | |
eeac7d46 | 1345 | break; |
0cda4f28 | 1346 | case OPT_LOGLEVEL: |
8005f29a | 1347 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE; |
0cda4f28 MD |
1348 | opt_loglevel = poptGetOptArg(pc); |
1349 | break; | |
1350 | case OPT_LOGLEVEL_ONLY: | |
8005f29a | 1351 | opt_loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE; |
0cda4f28 | 1352 | opt_loglevel = poptGetOptArg(pc); |
13dce3b7 | 1353 | break; |
679b4943 SM |
1354 | case OPT_LIST_OPTIONS: |
1355 | list_cmd_options(stdout, long_options); | |
679b4943 | 1356 | goto end; |
53a80697 MD |
1357 | case OPT_FILTER: |
1358 | break; | |
fac3366c JI |
1359 | case OPT_EXCLUDE: |
1360 | break; | |
f3ed775e DG |
1361 | default: |
1362 | usage(stderr); | |
1363 | ret = CMD_UNDEFINED; | |
1364 | goto end; | |
1365 | } | |
de044b7a DG |
1366 | |
1367 | /* Validate event type. Multiple event type are not supported. */ | |
1368 | if (event_type == -1) { | |
1369 | event_type = opt_event_type; | |
1370 | } else { | |
1371 | if (event_type != opt_event_type) { | |
1372 | ERR("Multiple event type not supported."); | |
1373 | ret = CMD_ERROR; | |
1374 | goto end; | |
1375 | } | |
1376 | } | |
f3ed775e DG |
1377 | } |
1378 | ||
89476427 JRJ |
1379 | /* Mi check */ |
1380 | if (lttng_opt_mi) { | |
1381 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1382 | if (!writer) { | |
1383 | ret = -LTTNG_ERR_NOMEM; | |
1384 | goto end; | |
1385 | } | |
1386 | ||
1387 | /* Open command element */ | |
1388 | ret = mi_lttng_writer_command_open(writer, | |
1389 | mi_lttng_element_command_enable_event); | |
1390 | if (ret) { | |
1391 | ret = CMD_ERROR; | |
1392 | goto end; | |
1393 | } | |
1394 | ||
1395 | /* Open output element */ | |
1396 | ret = mi_lttng_writer_open_element(writer, | |
1397 | mi_lttng_element_command_output); | |
1398 | if (ret) { | |
1399 | ret = CMD_ERROR; | |
1400 | goto end; | |
1401 | } | |
1402 | } | |
1403 | ||
f3ed775e DG |
1404 | opt_event_list = (char*) poptGetArg(pc); |
1405 | if (opt_event_list == NULL && opt_enable_all == 0) { | |
1406 | ERR("Missing event name(s).\n"); | |
1407 | usage(stderr); | |
ca1c3607 | 1408 | ret = CMD_ERROR; |
f3ed775e DG |
1409 | goto end; |
1410 | } | |
1411 | ||
cd80958d DG |
1412 | if (!opt_session_name) { |
1413 | session_name = get_session_name(); | |
1414 | if (session_name == NULL) { | |
89476427 JRJ |
1415 | command_ret = CMD_ERROR; |
1416 | success = 0; | |
1417 | goto mi_closing; | |
cd80958d DG |
1418 | } |
1419 | } else { | |
1420 | session_name = opt_session_name; | |
1421 | } | |
1422 | ||
89476427 JRJ |
1423 | command_ret = enable_events(session_name); |
1424 | if (command_ret) { | |
1425 | success = 0; | |
1426 | goto mi_closing; | |
1427 | } | |
1428 | ||
1429 | mi_closing: | |
1430 | /* Mi closing */ | |
1431 | if (lttng_opt_mi) { | |
1432 | /* Close output element */ | |
1433 | ret = mi_lttng_writer_close_element(writer); | |
1434 | if (ret) { | |
1435 | ret = CMD_ERROR; | |
1436 | goto end; | |
1437 | } | |
1438 | ||
1439 | ret = mi_lttng_writer_write_element_bool(writer, | |
1440 | mi_lttng_element_command_success, success); | |
1441 | if (ret) { | |
1442 | ret = CMD_ERROR; | |
1443 | goto end; | |
1444 | } | |
1445 | ||
1446 | /* Command element close */ | |
1447 | ret = mi_lttng_writer_command_close(writer); | |
1448 | if (ret) { | |
1449 | ret = CMD_ERROR; | |
1450 | goto end; | |
1451 | } | |
1452 | } | |
f3ed775e DG |
1453 | |
1454 | end: | |
89476427 JRJ |
1455 | /* Mi clean-up */ |
1456 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1457 | /* Preserve original error code */ | |
1458 | ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL; | |
1459 | } | |
1460 | ||
cd80958d DG |
1461 | if (opt_session_name == NULL) { |
1462 | free(session_name); | |
1463 | } | |
1464 | ||
89476427 JRJ |
1465 | /* Overwrite ret if an error occurred in enable_events */ |
1466 | ret = command_ret ? command_ret : ret; | |
1467 | ||
ca1c3607 | 1468 | poptFreeContext(pc); |
f3ed775e DG |
1469 | return ret; |
1470 | } |