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