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 | |
f9e5ce61 | 25 | #include "ustcomm.h" |
ae937656 | 26 | #include "ustcmd.h" |
2028e7fd | 27 | #include "usterr.h" |
ae937656 PP |
28 | |
29 | enum command { | |
62ec620f | 30 | CREATE_TRACE, |
ae937656 PP |
31 | START_TRACE, |
32 | STOP_TRACE, | |
33 | START, | |
34 | DESTROY, | |
35 | LIST_MARKERS, | |
36 | ENABLE_MARKER, | |
37 | DISABLE_MARKER, | |
38 | GET_ONLINE_PIDS, | |
763f41e5 DS |
39 | SET_SUBBUF_SIZE, |
40 | SET_SUBBUF_NUM, | |
41 | ALLOC_TRACE, | |
ae937656 | 42 | UNKNOWN |
ef290fca | 43 | }; |
fbd8191b | 44 | |
52c51a47 | 45 | struct ust_opts { |
ae937656 | 46 | enum command cmd; |
52c51a47 | 47 | pid_t *pids; |
08230db7 | 48 | char *regex; |
52c51a47 PMF |
49 | }; |
50 | ||
fd2fb4f9 PMF |
51 | char *progname = NULL; |
52 | ||
53 | void usage(void) | |
54 | { | |
ae937656 | 55 | fprintf(stderr, "usage: %s COMMAND PIDs...\n", progname); |
fd2fb4f9 PMF |
56 | fprintf(stderr, "\nControl the tracing of a process that supports LTTng Userspace Tracing.\n\ |
57 | \n\ | |
58 | Commands:\n\ | |
62ec620f | 59 | --create-trace\t\t\tCreate trace\n\ |
fd2fb4f9 PMF |
60 | --start-trace\t\t\tStart tracing\n\ |
61 | --stop-trace\t\t\tStop tracing\n\ | |
62 | --destroy-trace\t\t\tDestroy the trace\n\ | |
763f41e5 DS |
63 | --set-subbuf-size \"CHANNEL/bytes\"\tSet the size of subbuffers per channel\n\ |
64 | --set-subbuf-num \"CHANNEL/n\"\tSet the number of subbuffers per channel\n\ | |
ae937656 PP |
65 | --enable-marker \"CHANNEL/MARKER\"\tEnable a marker\n\ |
66 | --disable-marker \"CHANNEL/MARKER\"\tDisable a marker\n\ | |
67 | --list-markers\t\t\tList the markers of the process, their\n\t\t\t\t\t state and format string\n\ | |
68 | \ | |
fd2fb4f9 PMF |
69 | "); |
70 | } | |
71 | ||
52c51a47 | 72 | int parse_opts_long(int argc, char **argv, struct ust_opts *opts) |
fbd8191b | 73 | { |
52c51a47 | 74 | int c; |
52c51a47 | 75 | |
52c51a47 | 76 | opts->pids = NULL; |
ef290fca | 77 | opts->regex = NULL; |
52c51a47 PMF |
78 | |
79 | while (1) { | |
52c51a47 PMF |
80 | int option_index = 0; |
81 | static struct option long_options[] = { | |
62ec620f | 82 | {"create-trace", 0, 0, 1012}, |
763f41e5 | 83 | {"alloc-trace", 0, 0, 1015}, |
52c51a47 PMF |
84 | {"start-trace", 0, 0, 1000}, |
85 | {"stop-trace", 0, 0, 1001}, | |
86 | {"destroy-trace", 0, 0, 1002}, | |
87 | {"list-markers", 0, 0, 1004}, | |
88 | {"print-markers", 0, 0, 1005}, | |
89 | {"pid", 1, 0, 1006}, | |
90 | {"enable-marker", 1, 0, 1007}, | |
91 | {"disable-marker", 1, 0, 1008}, | |
92 | {"start", 0, 0, 1009}, | |
d373b5cd | 93 | {"help", 0, 0, 'h'}, |
ce3296b6 | 94 | /*{"version", 0, 0, 1010},*/ |
ae937656 | 95 | {"online-pids", 0, 0, 1011}, |
763f41e5 DS |
96 | {"set-subbuf-size", 1, 0, 1013}, |
97 | {"set-subbuf-num", 1, 0, 1014}, | |
52c51a47 PMF |
98 | {0, 0, 0, 0} |
99 | }; | |
100 | ||
d373b5cd | 101 | c = getopt_long(argc, argv, "h", long_options, &option_index); |
52c51a47 PMF |
102 | if (c == -1) |
103 | break; | |
104 | ||
105 | switch (c) { | |
106 | case 0: | |
107 | printf("option %s", long_options[option_index].name); | |
108 | if (optarg) | |
109 | printf(" with arg %s", optarg); | |
110 | printf("\n"); | |
111 | break; | |
112 | ||
113 | case 1000: | |
ae937656 | 114 | opts->cmd = START_TRACE; |
52c51a47 PMF |
115 | break; |
116 | case 1001: | |
ae937656 | 117 | opts->cmd = STOP_TRACE; |
52c51a47 PMF |
118 | break; |
119 | case 1009: | |
ae937656 | 120 | opts->cmd = START; |
52c51a47 PMF |
121 | break; |
122 | case 1002: | |
ae937656 | 123 | opts->cmd = DESTROY; |
52c51a47 PMF |
124 | break; |
125 | case 1004: | |
ae937656 | 126 | opts->cmd = LIST_MARKERS; |
52c51a47 PMF |
127 | break; |
128 | case 1007: | |
ae937656 | 129 | opts->cmd = ENABLE_MARKER; |
ef290fca | 130 | opts->regex = strdup(optarg); |
52c51a47 PMF |
131 | break; |
132 | case 1008: | |
ae937656 | 133 | opts->cmd = DISABLE_MARKER; |
ef290fca | 134 | opts->regex = strdup(optarg); |
ae937656 PP |
135 | break; |
136 | case 1011: | |
137 | opts->cmd = GET_ONLINE_PIDS; | |
52c51a47 | 138 | break; |
d373b5cd PMF |
139 | case 'h': |
140 | usage(); | |
141 | exit(0); | |
ce3296b6 | 142 | /* |
d373b5cd | 143 | case 1010: |
ae937656 | 144 | printf("Version 0.1\n"); |
62ec620f | 145 | break; |
ce3296b6 | 146 | */ |
62ec620f PMF |
147 | case 1012: |
148 | opts->cmd = CREATE_TRACE; | |
149 | break; | |
763f41e5 DS |
150 | case 1013: |
151 | opts->cmd = SET_SUBBUF_SIZE; | |
152 | opts->regex = strdup(optarg); | |
153 | break; | |
154 | case 1014: | |
155 | opts->cmd = SET_SUBBUF_NUM; | |
156 | opts->regex = strdup(optarg); | |
157 | break; | |
158 | case 1015: | |
159 | opts->cmd = ALLOC_TRACE; | |
160 | break; | |
52c51a47 | 161 | default: |
ae937656 PP |
162 | /* unknown option or other error; error is |
163 | printed by getopt, just return */ | |
164 | opts->cmd = UNKNOWN; | |
52c51a47 | 165 | return 1; |
fbd8191b PMF |
166 | } |
167 | } | |
168 | ||
772030fe | 169 | if (argc - optind > 0 && opts->cmd != GET_ONLINE_PIDS) { |
52c51a47 PMF |
170 | int i; |
171 | int pididx=0; | |
172 | opts->pids = malloc((argc-optind+1) * sizeof(pid_t)); | |
fbd8191b | 173 | |
52c51a47 | 174 | for(i=optind; i<argc; i++) { |
08230db7 PMF |
175 | /* don't take any chances, use a long long */ |
176 | long long tmp; | |
177 | char *endptr; | |
178 | tmp = strtoull(argv[i], &endptr, 10); | |
179 | if(*endptr != '\0') { | |
180 | ERR("The pid \"%s\" is invalid.", argv[i]); | |
181 | return 1; | |
182 | } | |
183 | opts->pids[pididx++] = (pid_t) tmp; | |
52c51a47 PMF |
184 | } |
185 | opts->pids[pididx] = -1; | |
fbd8191b PMF |
186 | } |
187 | ||
52c51a47 PMF |
188 | return 0; |
189 | } | |
fbd8191b | 190 | |
fbd8191b PMF |
191 | int main(int argc, char *argv[]) |
192 | { | |
52c51a47 | 193 | pid_t *pidit; |
52c51a47 PMF |
194 | int result; |
195 | struct ust_opts opts; | |
fbd8191b | 196 | |
52c51a47 | 197 | progname = argv[0]; |
fbd8191b | 198 | |
52c51a47 PMF |
199 | if(argc <= 1) { |
200 | fprintf(stderr, "No operation specified.\n"); | |
201 | usage(); | |
202 | exit(EXIT_FAILURE); | |
203 | } | |
204 | ||
205 | result = parse_opts_long(argc, argv, &opts); | |
206 | if(result) { | |
08230db7 | 207 | fprintf(stderr, "\n"); |
52c51a47 PMF |
208 | usage(); |
209 | exit(EXIT_FAILURE); | |
210 | } | |
211 | ||
ae937656 | 212 | if(opts.pids == NULL && opts.cmd != GET_ONLINE_PIDS) { |
52c51a47 PMF |
213 | fprintf(stderr, "No pid specified.\n"); |
214 | usage(); | |
215 | exit(EXIT_FAILURE); | |
216 | } | |
ae937656 | 217 | if(opts.cmd == UNKNOWN) { |
52c51a47 PMF |
218 | fprintf(stderr, "No command specified.\n"); |
219 | usage(); | |
220 | exit(EXIT_FAILURE); | |
221 | } | |
ae937656 | 222 | if (opts.cmd == GET_ONLINE_PIDS) { |
08230db7 | 223 | pid_t *pp = ustcmd_get_online_pids(); |
ae937656 | 224 | unsigned int i = 0; |
52c51a47 | 225 | |
ae937656 PP |
226 | if (pp) { |
227 | while (pp[i] != 0) { | |
228 | printf("%u\n", (unsigned int) pp[i]); | |
229 | ++i; | |
230 | } | |
231 | free(pp); | |
52c51a47 | 232 | } |
ef290fca | 233 | |
ae937656 PP |
234 | exit(EXIT_SUCCESS); |
235 | } | |
52c51a47 | 236 | |
ae937656 | 237 | pidit = opts.pids; |
08230db7 | 238 | struct marker_status *cmsf = NULL; |
ef290fca | 239 | |
ae937656 PP |
240 | while(*pidit != -1) { |
241 | switch (opts.cmd) { | |
62ec620f PMF |
242 | case CREATE_TRACE: |
243 | result = ustcmd_create_trace(*pidit); | |
244 | if (result) { | |
245 | ERR("error while trying to create trace with PID %u\n", (unsigned int) *pidit); | |
246 | break; | |
247 | } | |
248 | break; | |
249 | ||
ae937656 | 250 | case START_TRACE: |
08230db7 PMF |
251 | result = ustcmd_start_trace(*pidit); |
252 | if (result) { | |
253 | ERR("error while trying to for trace with PID %u\n", (unsigned int) *pidit); | |
254 | break; | |
255 | } | |
256 | //printf("sucessfully started trace for PID %u\n", (unsigned int) *pidit); | |
ae937656 | 257 | break; |
ef290fca | 258 | |
ae937656 | 259 | case STOP_TRACE: |
08230db7 PMF |
260 | result = ustcmd_stop_trace(*pidit); |
261 | if (result) { | |
262 | ERR("error while trying to stop trace for PID %u\n", (unsigned int) *pidit); | |
263 | break; | |
264 | } | |
265 | //printf("sucessfully stopped trace for PID %u\n", (unsigned int) *pidit); | |
ae937656 | 266 | break; |
ef290fca | 267 | |
ae937656 | 268 | case START: |
08230db7 PMF |
269 | result = ustcmd_setup_and_start(*pidit); |
270 | if (result) { | |
271 | ERR("error while trying to setup/start trace for PID %u\n", (unsigned int) *pidit); | |
272 | break; | |
273 | } | |
274 | //printf("sucessfully setup/started trace for PID %u\n", (unsigned int) *pidit); | |
ae937656 | 275 | break; |
ef290fca | 276 | |
ae937656 | 277 | case DESTROY: |
08230db7 PMF |
278 | result = ustcmd_destroy_trace(*pidit); |
279 | if (result) { | |
280 | ERR("error while trying to destroy trace with PID %u\n", (unsigned int) *pidit); | |
281 | break; | |
282 | } | |
283 | //printf("sucessfully destroyed trace for PID %u\n", (unsigned int) *pidit); | |
ae937656 | 284 | break; |
ef290fca | 285 | |
ae937656 | 286 | case LIST_MARKERS: |
08230db7 PMF |
287 | cmsf = NULL; |
288 | if (ustcmd_get_cmsf(&cmsf, *pidit)) { | |
289 | fprintf(stderr, | |
290 | "error while trying to list markers for" | |
291 | " PID %u\n", (unsigned int) *pidit); | |
292 | break; | |
293 | } | |
294 | unsigned int i = 0; | |
295 | while (cmsf[i].channel != NULL) { | |
296 | printf("{PID: %u, channel/marker: %s/%s, " | |
264f6231 | 297 | "state: %u, fmt: %s}\n", |
08230db7 PMF |
298 | (unsigned int) *pidit, |
299 | cmsf[i].channel, | |
300 | cmsf[i].marker, | |
301 | cmsf[i].state, | |
302 | cmsf[i].fs); | |
303 | ++i; | |
304 | } | |
305 | ustcmd_free_cmsf(cmsf); | |
ae937656 | 306 | break; |
ef290fca | 307 | |
ae937656 | 308 | case ENABLE_MARKER: |
ee648b8f PMF |
309 | if(opts.regex) |
310 | ustcmd_set_marker_state(opts.regex, 1, *pidit); | |
311 | break; | |
ae937656 | 312 | case DISABLE_MARKER: |
ee648b8f PMF |
313 | if(opts.regex) |
314 | ustcmd_set_marker_state(opts.regex, 0, *pidit); | |
315 | break; | |
ef290fca | 316 | |
763f41e5 DS |
317 | case SET_SUBBUF_SIZE: |
318 | ustcmd_set_subbuf_size(opts.regex, *pidit); | |
319 | break; | |
320 | ||
321 | case SET_SUBBUF_NUM: | |
322 | ustcmd_set_subbuf_num(opts.regex, *pidit); | |
323 | break; | |
324 | ||
325 | case ALLOC_TRACE: | |
326 | result = ustcmd_alloc_trace(*pidit); | |
327 | if (result) { | |
328 | ERR("error while trying to alloc trace with PID %u\n", (unsigned int) *pidit); | |
329 | break; | |
330 | } | |
331 | break; | |
332 | ||
ae937656 | 333 | default: |
08230db7 | 334 | ERR("unknown command\n"); |
ae937656 PP |
335 | break; |
336 | } | |
ef290fca | 337 | |
52c51a47 PMF |
338 | pidit++; |
339 | } | |
82b1a169 | 340 | |
ef290fca PMF |
341 | if (opts.pids != NULL) { |
342 | free(opts.pids); | |
343 | } | |
344 | if (opts.regex != NULL) { | |
345 | free(opts.regex); | |
ae937656 | 346 | } |
fbd8191b PMF |
347 | |
348 | return 0; | |
349 | } | |
ae937656 | 350 |