Commit | Line | Data |
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c39c72ee PMF |
1 | /* Copyright (C) 2009 Pierre-Marc Fournier |
2 | * | |
3 | * This library is free software; you can redistribute it and/or | |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
7 | * | |
8 | * This library 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 GNU | |
11 | * Lesser General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU Lesser General Public | |
14 | * License along with this library; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | */ | |
17 | ||
872037bb PMF |
18 | #define _GNU_SOURCE |
19 | #include <stdio.h> | |
fbd8191b PMF |
20 | #include <unistd.h> |
21 | #include <getopt.h> | |
22 | #include <stdlib.h> | |
fbd8191b | 23 | #include <fcntl.h> |
fbd8191b | 24 | |
d6c9f207 | 25 | #include "ust/ustcmd.h" |
2028e7fd | 26 | #include "usterr.h" |
ae937656 PP |
27 | |
28 | enum command { | |
b0a5a08b PMF |
29 | CREATE_TRACE=1000, |
30 | ALLOC_TRACE, | |
ae937656 PP |
31 | START_TRACE, |
32 | STOP_TRACE, | |
b0a5a08b | 33 | DESTROY_TRACE, |
ae937656 | 34 | LIST_MARKERS, |
a3adfb05 | 35 | LIST_TRACE_EVENTS, |
ae937656 PP |
36 | ENABLE_MARKER, |
37 | DISABLE_MARKER, | |
38 | GET_ONLINE_PIDS, | |
763f41e5 DS |
39 | SET_SUBBUF_SIZE, |
40 | SET_SUBBUF_NUM, | |
e77b8e8e DS |
41 | GET_SUBBUF_SIZE, |
42 | GET_SUBBUF_NUM, | |
b2fb2f91 AH |
43 | GET_SOCK_PATH, |
44 | SET_SOCK_PATH, | |
b9318b35 | 45 | FORCE_SWITCH, |
ae937656 | 46 | UNKNOWN |
ef290fca | 47 | }; |
fbd8191b | 48 | |
52c51a47 | 49 | struct ust_opts { |
ae937656 | 50 | enum command cmd; |
52c51a47 | 51 | pid_t *pids; |
08230db7 | 52 | char *regex; |
52c51a47 PMF |
53 | }; |
54 | ||
fd2fb4f9 PMF |
55 | char *progname = NULL; |
56 | ||
57 | void usage(void) | |
58 | { | |
ae937656 | 59 | fprintf(stderr, "usage: %s COMMAND PIDs...\n", progname); |
fd2fb4f9 PMF |
60 | fprintf(stderr, "\nControl the tracing of a process that supports LTTng Userspace Tracing.\n\ |
61 | \n\ | |
62 | Commands:\n\ | |
62ec620f | 63 | --create-trace\t\t\tCreate trace\n\ |
4ed9f99d | 64 | --alloc-trace\t\t\tAlloc trace\n\ |
fd2fb4f9 PMF |
65 | --start-trace\t\t\tStart tracing\n\ |
66 | --stop-trace\t\t\tStop tracing\n\ | |
67 | --destroy-trace\t\t\tDestroy the trace\n\ | |
763f41e5 DS |
68 | --set-subbuf-size \"CHANNEL/bytes\"\tSet the size of subbuffers per channel\n\ |
69 | --set-subbuf-num \"CHANNEL/n\"\tSet the number of subbuffers per channel\n\ | |
b2fb2f91 | 70 | --set-sock-path\t\t\tSet the path of the daemon socket\n\ |
e77b8e8e DS |
71 | --get-subbuf-size \"CHANNEL\"\t\tGet the size of subbuffers per channel\n\ |
72 | --get-subbuf-num \"CHANNEL\"\t\tGet the number of subbuffers per channel\n\ | |
b2fb2f91 | 73 | --get-sock-path\t\t\tGet the path of the daemon socket\n\ |
ae937656 PP |
74 | --enable-marker \"CHANNEL/MARKER\"\tEnable a marker\n\ |
75 | --disable-marker \"CHANNEL/MARKER\"\tDisable a marker\n\ | |
76 | --list-markers\t\t\tList the markers of the process, their\n\t\t\t\t\t state and format string\n\ | |
a3adfb05 | 77 | --list-trace-events\t\t\tList the trace-events of the process\n\ |
b9318b35 | 78 | --force-switch\t\t\tForce a subbuffer switch\n\ |
ae937656 | 79 | \ |
fd2fb4f9 PMF |
80 | "); |
81 | } | |
82 | ||
52c51a47 | 83 | int parse_opts_long(int argc, char **argv, struct ust_opts *opts) |
fbd8191b | 84 | { |
52c51a47 | 85 | int c; |
52c51a47 | 86 | |
52c51a47 | 87 | opts->pids = NULL; |
ef290fca | 88 | opts->regex = NULL; |
52c51a47 PMF |
89 | |
90 | while (1) { | |
52c51a47 PMF |
91 | int option_index = 0; |
92 | static struct option long_options[] = { | |
b0a5a08b PMF |
93 | { "create-trace", 0, 0, CREATE_TRACE }, |
94 | { "alloc-trace", 0, 0, ALLOC_TRACE }, | |
95 | { "start-trace", 0, 0, START_TRACE }, | |
96 | { "stop-trace", 0, 0, STOP_TRACE }, | |
97 | { "destroy-trace", 0, 0, DESTROY_TRACE }, | |
98 | { "list-markers", 0, 0, LIST_MARKERS }, | |
a3adfb05 | 99 | { "list-trace-events", 0, 0, LIST_TRACE_EVENTS}, |
b0a5a08b PMF |
100 | { "enable-marker", 1, 0, ENABLE_MARKER }, |
101 | { "disable-marker", 1, 0, DISABLE_MARKER }, | |
102 | { "help", 0, 0, 'h' }, | |
103 | { "online-pids", 0, 0, GET_ONLINE_PIDS }, | |
104 | { "set-subbuf-size", 1, 0, SET_SUBBUF_SIZE }, | |
105 | { "set-subbuf-num", 1, 0, SET_SUBBUF_NUM }, | |
e77b8e8e DS |
106 | { "get-subbuf-size", 1, 0, GET_SUBBUF_SIZE }, |
107 | { "get-subbuf-num", 1, 0, GET_SUBBUF_NUM }, | |
b2fb2f91 AH |
108 | { "get-sock-path", 0, 0, GET_SOCK_PATH }, |
109 | { "set-sock-path", 1, 0, SET_SOCK_PATH }, | |
b9318b35 | 110 | { "force-switch", 0, 0, FORCE_SWITCH }, |
b0a5a08b | 111 | { 0, 0, 0, 0 } |
52c51a47 PMF |
112 | }; |
113 | ||
d373b5cd | 114 | c = getopt_long(argc, argv, "h", long_options, &option_index); |
52c51a47 PMF |
115 | if (c == -1) |
116 | break; | |
117 | ||
b0a5a08b PMF |
118 | if(c >= 1000) |
119 | opts->cmd = c; | |
120 | ||
52c51a47 PMF |
121 | switch (c) { |
122 | case 0: | |
123 | printf("option %s", long_options[option_index].name); | |
124 | if (optarg) | |
125 | printf(" with arg %s", optarg); | |
126 | printf("\n"); | |
127 | break; | |
128 | ||
b0a5a08b PMF |
129 | case ENABLE_MARKER: |
130 | case DISABLE_MARKER: | |
131 | case SET_SUBBUF_SIZE: | |
132 | case SET_SUBBUF_NUM: | |
e77b8e8e DS |
133 | case GET_SUBBUF_SIZE: |
134 | case GET_SUBBUF_NUM: | |
b2fb2f91 | 135 | case SET_SOCK_PATH: |
ef290fca | 136 | opts->regex = strdup(optarg); |
ae937656 | 137 | break; |
b0a5a08b | 138 | |
d373b5cd PMF |
139 | case 'h': |
140 | usage(); | |
141 | exit(0); | |
b0a5a08b PMF |
142 | |
143 | case '?': | |
144 | fprintf(stderr, "Invalid argument\n\n"); | |
145 | usage(); | |
146 | exit(1); | |
fbd8191b PMF |
147 | } |
148 | } | |
149 | ||
772030fe | 150 | if (argc - optind > 0 && opts->cmd != GET_ONLINE_PIDS) { |
52c51a47 PMF |
151 | int i; |
152 | int pididx=0; | |
7032c7d3 | 153 | opts->pids = zmalloc((argc-optind+1) * sizeof(pid_t)); |
fbd8191b | 154 | |
52c51a47 | 155 | for(i=optind; i<argc; i++) { |
08230db7 PMF |
156 | /* don't take any chances, use a long long */ |
157 | long long tmp; | |
158 | char *endptr; | |
159 | tmp = strtoull(argv[i], &endptr, 10); | |
160 | if(*endptr != '\0') { | |
161 | ERR("The pid \"%s\" is invalid.", argv[i]); | |
162 | return 1; | |
163 | } | |
164 | opts->pids[pididx++] = (pid_t) tmp; | |
52c51a47 PMF |
165 | } |
166 | opts->pids[pididx] = -1; | |
fbd8191b PMF |
167 | } |
168 | ||
52c51a47 PMF |
169 | return 0; |
170 | } | |
fbd8191b | 171 | |
fbd8191b PMF |
172 | int main(int argc, char *argv[]) |
173 | { | |
52c51a47 | 174 | pid_t *pidit; |
52c51a47 | 175 | int result; |
1e620c53 | 176 | int retval = EXIT_SUCCESS; |
b2fb2f91 | 177 | char *tmp; |
52c51a47 | 178 | struct ust_opts opts; |
fbd8191b | 179 | |
52c51a47 | 180 | progname = argv[0]; |
fbd8191b | 181 | |
52c51a47 PMF |
182 | if(argc <= 1) { |
183 | fprintf(stderr, "No operation specified.\n"); | |
184 | usage(); | |
185 | exit(EXIT_FAILURE); | |
186 | } | |
187 | ||
188 | result = parse_opts_long(argc, argv, &opts); | |
189 | if(result) { | |
08230db7 | 190 | fprintf(stderr, "\n"); |
52c51a47 PMF |
191 | usage(); |
192 | exit(EXIT_FAILURE); | |
193 | } | |
194 | ||
ae937656 | 195 | if(opts.pids == NULL && opts.cmd != GET_ONLINE_PIDS) { |
52c51a47 PMF |
196 | fprintf(stderr, "No pid specified.\n"); |
197 | usage(); | |
198 | exit(EXIT_FAILURE); | |
199 | } | |
ae937656 | 200 | if(opts.cmd == UNKNOWN) { |
52c51a47 PMF |
201 | fprintf(stderr, "No command specified.\n"); |
202 | usage(); | |
203 | exit(EXIT_FAILURE); | |
204 | } | |
ae937656 | 205 | if (opts.cmd == GET_ONLINE_PIDS) { |
08230db7 | 206 | pid_t *pp = ustcmd_get_online_pids(); |
ae937656 | 207 | unsigned int i = 0; |
52c51a47 | 208 | |
ae937656 PP |
209 | if (pp) { |
210 | while (pp[i] != 0) { | |
211 | printf("%u\n", (unsigned int) pp[i]); | |
212 | ++i; | |
213 | } | |
214 | free(pp); | |
52c51a47 | 215 | } |
ef290fca | 216 | |
ae937656 PP |
217 | exit(EXIT_SUCCESS); |
218 | } | |
52c51a47 | 219 | |
ae937656 | 220 | pidit = opts.pids; |
08230db7 | 221 | struct marker_status *cmsf = NULL; |
a3adfb05 NC |
222 | struct trace_event_status *tes = NULL; |
223 | unsigned int i = 0; | |
ef290fca | 224 | |
ae937656 PP |
225 | while(*pidit != -1) { |
226 | switch (opts.cmd) { | |
62ec620f PMF |
227 | case CREATE_TRACE: |
228 | result = ustcmd_create_trace(*pidit); | |
229 | if (result) { | |
230 | ERR("error while trying to create trace with PID %u\n", (unsigned int) *pidit); | |
1e620c53 | 231 | retval = EXIT_FAILURE; |
62ec620f PMF |
232 | break; |
233 | } | |
234 | break; | |
235 | ||
ae937656 | 236 | case START_TRACE: |
08230db7 PMF |
237 | result = ustcmd_start_trace(*pidit); |
238 | if (result) { | |
239 | ERR("error while trying to for trace with PID %u\n", (unsigned int) *pidit); | |
1e620c53 | 240 | retval = EXIT_FAILURE; |
08230db7 PMF |
241 | break; |
242 | } | |
ae937656 | 243 | break; |
ef290fca | 244 | |
ae937656 | 245 | case STOP_TRACE: |
08230db7 PMF |
246 | result = ustcmd_stop_trace(*pidit); |
247 | if (result) { | |
248 | ERR("error while trying to stop trace for PID %u\n", (unsigned int) *pidit); | |
1e620c53 | 249 | retval = EXIT_FAILURE; |
08230db7 PMF |
250 | break; |
251 | } | |
ae937656 | 252 | break; |
ef290fca | 253 | |
b0a5a08b | 254 | case DESTROY_TRACE: |
08230db7 PMF |
255 | result = ustcmd_destroy_trace(*pidit); |
256 | if (result) { | |
257 | ERR("error while trying to destroy trace with PID %u\n", (unsigned int) *pidit); | |
1e620c53 | 258 | retval = EXIT_FAILURE; |
08230db7 PMF |
259 | break; |
260 | } | |
ae937656 | 261 | break; |
ef290fca | 262 | |
ae937656 | 263 | case LIST_MARKERS: |
08230db7 PMF |
264 | cmsf = NULL; |
265 | if (ustcmd_get_cmsf(&cmsf, *pidit)) { | |
1e620c53 DG |
266 | ERR("error while trying to list markers for PID %u\n", (unsigned int) *pidit); |
267 | retval = EXIT_FAILURE; | |
08230db7 PMF |
268 | break; |
269 | } | |
a3adfb05 | 270 | i = 0; |
08230db7 PMF |
271 | while (cmsf[i].channel != NULL) { |
272 | printf("{PID: %u, channel/marker: %s/%s, " | |
264f6231 | 273 | "state: %u, fmt: %s}\n", |
08230db7 PMF |
274 | (unsigned int) *pidit, |
275 | cmsf[i].channel, | |
276 | cmsf[i].marker, | |
277 | cmsf[i].state, | |
278 | cmsf[i].fs); | |
279 | ++i; | |
280 | } | |
281 | ustcmd_free_cmsf(cmsf); | |
ae937656 | 282 | break; |
ef290fca | 283 | |
a3adfb05 NC |
284 | case LIST_TRACE_EVENTS: |
285 | tes = NULL; | |
286 | if (ustcmd_get_tes(&tes, *pidit)) { | |
287 | ERR("error while trying to list " | |
288 | "trace_events for PID %u\n", | |
289 | (unsigned int) *pidit); | |
290 | break; | |
291 | } | |
292 | i = 0; | |
293 | while (tes[i].name != NULL) { | |
294 | printf("{PID: %u, trace_event: %s}\n", | |
295 | (unsigned int) *pidit, | |
296 | tes[i].name); | |
297 | ++i; | |
298 | } | |
299 | ustcmd_free_tes(tes); | |
300 | ||
301 | break; | |
ae937656 | 302 | case ENABLE_MARKER: |
1e620c53 DG |
303 | if (opts.regex) { |
304 | if (ustcmd_set_marker_state(opts.regex, 1, *pidit)) { | |
305 | ERR("error while trying to enable marker %s with PID %u\n", | |
306 | opts.regex, (unsigned int) *pidit); | |
307 | retval = EXIT_FAILURE; | |
308 | } | |
309 | } | |
ee648b8f | 310 | break; |
ae937656 | 311 | case DISABLE_MARKER: |
1e620c53 DG |
312 | if (opts.regex) { |
313 | if (ustcmd_set_marker_state(opts.regex, 0, *pidit)) { | |
314 | ERR("error while trying to disable marker %s with PID %u\n", | |
315 | opts.regex, (unsigned int) *pidit); | |
316 | retval = EXIT_FAILURE; | |
317 | } | |
318 | } | |
ee648b8f | 319 | break; |
ef290fca | 320 | |
763f41e5 | 321 | case SET_SUBBUF_SIZE: |
1e620c53 DG |
322 | if (opts.regex) { |
323 | if (ustcmd_set_subbuf_size(opts.regex, *pidit)) { | |
324 | ERR("error while trying to set the size of subbuffers with PID %u\n", | |
325 | (unsigned int) *pidit); | |
326 | retval = EXIT_FAILURE; | |
327 | } | |
328 | } | |
763f41e5 DS |
329 | break; |
330 | ||
331 | case SET_SUBBUF_NUM: | |
1e620c53 DG |
332 | if (opts.regex) { |
333 | if (ustcmd_set_subbuf_num(opts.regex, *pidit)) { | |
334 | ERR("error while trying to set the number of subbuffers with PID %u\n", | |
335 | (unsigned int) *pidit); | |
336 | retval = EXIT_FAILURE; | |
337 | } | |
338 | } | |
763f41e5 DS |
339 | break; |
340 | ||
e77b8e8e DS |
341 | case GET_SUBBUF_SIZE: |
342 | result = ustcmd_get_subbuf_size(opts.regex, *pidit); | |
343 | if (result == -1) { | |
344 | ERR("error while trying to get_subuf_size with PID %u\n", (unsigned int) *pidit); | |
1e620c53 | 345 | retval = EXIT_FAILURE; |
e77b8e8e DS |
346 | break; |
347 | } | |
348 | ||
349 | printf("the size of subbufers is %d\n", result); | |
350 | break; | |
351 | ||
352 | case GET_SUBBUF_NUM: | |
353 | result = ustcmd_get_subbuf_num(opts.regex, *pidit); | |
354 | if (result == -1) { | |
355 | ERR("error while trying to get_subuf_num with PID %u\n", (unsigned int) *pidit); | |
1e620c53 | 356 | retval = EXIT_FAILURE; |
e77b8e8e DS |
357 | break; |
358 | } | |
359 | ||
360 | printf("the number of subbufers is %d\n", result); | |
361 | break; | |
362 | ||
763f41e5 DS |
363 | case ALLOC_TRACE: |
364 | result = ustcmd_alloc_trace(*pidit); | |
365 | if (result) { | |
366 | ERR("error while trying to alloc trace with PID %u\n", (unsigned int) *pidit); | |
1e620c53 | 367 | retval = EXIT_FAILURE; |
763f41e5 DS |
368 | } |
369 | break; | |
370 | ||
b2fb2f91 AH |
371 | case GET_SOCK_PATH: |
372 | result = ustcmd_get_sock_path(&tmp, *pidit); | |
373 | if (result) { | |
374 | ERR("error while trying to get sock path for PID %u\n", (unsigned int) *pidit); | |
1e620c53 | 375 | retval = EXIT_FAILURE; |
b2fb2f91 AH |
376 | break; |
377 | } | |
378 | printf("the socket path is %s\n", tmp); | |
379 | free(tmp); | |
380 | break; | |
381 | ||
382 | case SET_SOCK_PATH: | |
383 | result = ustcmd_set_sock_path(opts.regex, *pidit); | |
384 | if (result) { | |
385 | ERR("error while trying to set sock path for PID %u\n", (unsigned int) *pidit); | |
1e620c53 | 386 | retval = EXIT_FAILURE; |
b2fb2f91 AH |
387 | } |
388 | break; | |
389 | ||
b9318b35 AH |
390 | case FORCE_SWITCH: |
391 | result = ustcmd_force_switch(*pidit); | |
392 | if (result) { | |
393 | ERR("error while trying to force switch for PID %u\n", (unsigned int) *pidit); | |
1e620c53 | 394 | retval = EXIT_FAILURE; |
b9318b35 AH |
395 | } |
396 | break; | |
397 | ||
ae937656 | 398 | default: |
08230db7 | 399 | ERR("unknown command\n"); |
1e620c53 DG |
400 | retval = EXIT_FAILURE; |
401 | break; | |
ae937656 | 402 | } |
ef290fca | 403 | |
52c51a47 PMF |
404 | pidit++; |
405 | } | |
82b1a169 | 406 | |
ef290fca PMF |
407 | if (opts.pids != NULL) { |
408 | free(opts.pids); | |
409 | } | |
410 | if (opts.regex != NULL) { | |
411 | free(opts.regex); | |
ae937656 | 412 | } |
fbd8191b | 413 | |
1e620c53 | 414 | return retval; |
fbd8191b | 415 | } |
ae937656 | 416 |