2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 * Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License, version 2 only,
7 * as published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 #include <sys/types.h>
30 #include <urcu/list.h>
32 #include <common/mi-lttng.h>
34 #include "../command.h"
36 static char *opt_channel_name
;
37 static char *opt_session_name
;
38 static int opt_kernel
;
39 static int opt_userspace
;
42 static char *opt_type
;
54 static struct lttng_handle
*handle
;
55 static struct mi_writer
*writer
;
58 * Taken from the LTTng ABI
62 CONTEXT_PERF_COUNTER
= 1, /* Backward compat. */
71 CONTEXT_PTHREAD_ID
= 10,
72 CONTEXT_HOSTNAME
= 11,
74 CONTEXT_PERF_CPU_COUNTER
= 13,
75 CONTEXT_PERF_THREAD_COUNTER
= 14,
76 CONTEXT_APP_CONTEXT
= 15,
77 CONTEXT_INTERRUPTIBLE
= 16,
78 CONTEXT_PREEMPTIBLE
= 17,
79 CONTEXT_NEED_RESCHEDULE
= 18,
80 CONTEXT_MIGRATABLE
= 19,
84 * Taken from the Perf ABI (all enum perf_*)
87 PERF_TYPE_HARDWARE
= 0,
88 PERF_TYPE_SOFTWARE
= 1,
89 PERF_TYPE_HW_CACHE
= 3,
93 enum perf_count_hard
{
94 PERF_COUNT_HW_CPU_CYCLES
= 0,
95 PERF_COUNT_HW_INSTRUCTIONS
= 1,
96 PERF_COUNT_HW_CACHE_REFERENCES
= 2,
97 PERF_COUNT_HW_CACHE_MISSES
= 3,
98 PERF_COUNT_HW_BRANCH_INSTRUCTIONS
= 4,
99 PERF_COUNT_HW_BRANCH_MISSES
= 5,
100 PERF_COUNT_HW_BUS_CYCLES
= 6,
101 PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
= 7,
102 PERF_COUNT_HW_STALLED_CYCLES_BACKEND
= 8,
105 enum perf_count_soft
{
106 PERF_COUNT_SW_CPU_CLOCK
= 0,
107 PERF_COUNT_SW_TASK_CLOCK
= 1,
108 PERF_COUNT_SW_PAGE_FAULTS
= 2,
109 PERF_COUNT_SW_CONTEXT_SWITCHES
= 3,
110 PERF_COUNT_SW_CPU_MIGRATIONS
= 4,
111 PERF_COUNT_SW_PAGE_FAULTS_MIN
= 5,
112 PERF_COUNT_SW_PAGE_FAULTS_MAJ
= 6,
113 PERF_COUNT_SW_ALIGNMENT_FAULTS
= 7,
114 PERF_COUNT_SW_EMULATION_FAULTS
= 8,
118 * Generalized hardware cache events:
120 * { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x
121 * { read, write, prefetch } x
122 * { accesses, misses }
124 enum perf_hw_cache_id
{
125 PERF_COUNT_HW_CACHE_L1D
= 0,
126 PERF_COUNT_HW_CACHE_L1I
= 1,
127 PERF_COUNT_HW_CACHE_LL
= 2,
128 PERF_COUNT_HW_CACHE_DTLB
= 3,
129 PERF_COUNT_HW_CACHE_ITLB
= 4,
130 PERF_COUNT_HW_CACHE_BPU
= 5,
132 PERF_COUNT_HW_CACHE_MAX
, /* non-ABI */
135 enum perf_hw_cache_op_id
{
136 PERF_COUNT_HW_CACHE_OP_READ
= 0,
137 PERF_COUNT_HW_CACHE_OP_WRITE
= 1,
138 PERF_COUNT_HW_CACHE_OP_PREFETCH
= 2,
140 PERF_COUNT_HW_CACHE_OP_MAX
, /* non-ABI */
143 enum perf_hw_cache_op_result_id
{
144 PERF_COUNT_HW_CACHE_RESULT_ACCESS
= 0,
145 PERF_COUNT_HW_CACHE_RESULT_MISS
= 1,
147 PERF_COUNT_HW_CACHE_RESULT_MAX
, /* non-ABI */
150 static struct poptOption long_options
[] = {
151 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
152 {"help", 'h', POPT_ARG_NONE
, 0, OPT_HELP
, 0, 0},
153 {"session", 's', POPT_ARG_STRING
, &opt_session_name
, 0, 0, 0},
154 {"channel", 'c', POPT_ARG_STRING
, &opt_channel_name
, 0, 0, 0},
155 {"kernel", 'k', POPT_ARG_VAL
, &opt_kernel
, 1, 0, 0},
156 {"userspace", 'u', POPT_ARG_NONE
, 0, OPT_USERSPACE
, 0, 0},
157 {"jul", 'j', POPT_ARG_NONE
, 0, OPT_JUL
, 0, 0},
158 {"log4j", 'l', POPT_ARG_NONE
, 0, OPT_LOG4J
, 0, 0},
159 {"type", 't', POPT_ARG_STRING
, &opt_type
, OPT_TYPE
, 0, 0},
160 {"list", 0, POPT_ARG_NONE
, NULL
, OPT_LIST
, NULL
, NULL
},
161 {"list-options", 0, POPT_ARG_NONE
, NULL
, OPT_LIST_OPTIONS
, NULL
, NULL
},
162 {0, 0, 0, 0, 0, 0, 0}
168 #define PERF_HW(optstr, name, type, hide) \
170 optstr, type, hide, \
171 .u.perf = { PERF_TYPE_HARDWARE, PERF_COUNT_HW_##name, },\
174 #define PERF_SW(optstr, name, type, hide) \
176 optstr, type, hide, \
177 .u.perf = { PERF_TYPE_SOFTWARE, PERF_COUNT_SW_##name, },\
180 #define _PERF_HW_CACHE(optstr, name, type, op, result, hide) \
182 optstr, type, hide, \
184 PERF_TYPE_HW_CACHE, \
185 (uint64_t) PERF_COUNT_HW_CACHE_##name \
186 | ((uint64_t) PERF_COUNT_HW_CACHE_OP_##op << 8) \
187 | ((uint64_t) PERF_COUNT_HW_CACHE_RESULT_##result << 16), \
191 #define PERF_HW_CACHE(optstr, name, type, hide) \
192 _PERF_HW_CACHE(optstr "-loads", name, type, \
193 READ, ACCESS, hide), \
194 _PERF_HW_CACHE(optstr "-load-misses", name, type, \
196 _PERF_HW_CACHE(optstr "-stores", name, type, \
197 WRITE, ACCESS, hide), \
198 _PERF_HW_CACHE(optstr "-store-misses", name, type, \
199 WRITE, MISS, hide), \
200 _PERF_HW_CACHE(optstr "-prefetches", name, type, \
201 PREFETCH, ACCESS, hide), \
202 _PERF_HW_CACHE(optstr "-prefetch-misses", name, type, \
203 PREFETCH, MISS, hide)
206 const struct ctx_opts
{
208 enum context_type ctx_type
;
209 int hide_help
; /* Hide from --help */
221 { "pid", CONTEXT_PID
},
222 { "procname", CONTEXT_PROCNAME
},
223 { "prio", CONTEXT_PRIO
},
224 { "nice", CONTEXT_NICE
},
225 { "vpid", CONTEXT_VPID
},
226 { "tid", CONTEXT_TID
},
227 { "pthread_id", CONTEXT_PTHREAD_ID
},
228 { "vtid", CONTEXT_VTID
},
229 { "ppid", CONTEXT_PPID
},
230 { "vppid", CONTEXT_VPPID
},
231 { "hostname", CONTEXT_HOSTNAME
},
232 { "ip", CONTEXT_IP
},
233 { "interruptible", CONTEXT_INTERRUPTIBLE
},
234 { "preemptible", CONTEXT_PREEMPTIBLE
},
235 { "need_reschedule", CONTEXT_NEED_RESCHEDULE
},
236 { "migratable", CONTEXT_MIGRATABLE
},
240 /* Perf per-CPU counters */
241 PERF_HW("perf:cpu:cpu-cycles", CPU_CYCLES
,
242 CONTEXT_PERF_CPU_COUNTER
, 0),
243 PERF_HW("perf:cpu:cycles", CPU_CYCLES
,
244 CONTEXT_PERF_CPU_COUNTER
, 0),
245 PERF_HW("perf:cpu:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND
,
246 CONTEXT_PERF_CPU_COUNTER
, 0),
247 PERF_HW("perf:cpu:idle-cycles-frontend", STALLED_CYCLES_FRONTEND
,
248 CONTEXT_PERF_CPU_COUNTER
, 0),
249 PERF_HW("perf:cpu:stalled-cycles-backend", STALLED_CYCLES_BACKEND
,
250 CONTEXT_PERF_CPU_COUNTER
, 0),
251 PERF_HW("perf:cpu:idle-cycles-backend", STALLED_CYCLES_BACKEND
,
252 CONTEXT_PERF_CPU_COUNTER
, 0),
253 PERF_HW("perf:cpu:instructions", INSTRUCTIONS
,
254 CONTEXT_PERF_CPU_COUNTER
, 0),
255 PERF_HW("perf:cpu:cache-references", CACHE_REFERENCES
,
256 CONTEXT_PERF_CPU_COUNTER
, 0),
257 PERF_HW("perf:cpu:cache-misses", CACHE_MISSES
,
258 CONTEXT_PERF_CPU_COUNTER
, 0),
259 PERF_HW("perf:cpu:branch-instructions", BRANCH_INSTRUCTIONS
,
260 CONTEXT_PERF_CPU_COUNTER
, 0),
261 PERF_HW("perf:cpu:branches", BRANCH_INSTRUCTIONS
,
262 CONTEXT_PERF_CPU_COUNTER
, 0),
263 PERF_HW("perf:cpu:branch-misses", BRANCH_MISSES
,
264 CONTEXT_PERF_CPU_COUNTER
, 0),
265 PERF_HW("perf:cpu:bus-cycles", BUS_CYCLES
,
266 CONTEXT_PERF_CPU_COUNTER
, 0),
268 PERF_HW_CACHE("perf:cpu:L1-dcache", L1D
,
269 CONTEXT_PERF_CPU_COUNTER
, 0),
270 PERF_HW_CACHE("perf:cpu:L1-icache", L1I
,
271 CONTEXT_PERF_CPU_COUNTER
, 0),
272 PERF_HW_CACHE("perf:cpu:LLC", LL
,
273 CONTEXT_PERF_CPU_COUNTER
, 0),
274 PERF_HW_CACHE("perf:cpu:dTLB", DTLB
,
275 CONTEXT_PERF_CPU_COUNTER
, 0),
276 _PERF_HW_CACHE("perf:cpu:iTLB-loads", ITLB
,
277 CONTEXT_PERF_CPU_COUNTER
, READ
, ACCESS
, 0),
278 _PERF_HW_CACHE("perf:cpu:iTLB-load-misses", ITLB
,
279 CONTEXT_PERF_CPU_COUNTER
, READ
, MISS
, 0),
280 _PERF_HW_CACHE("perf:cpu:branch-loads", BPU
,
281 CONTEXT_PERF_CPU_COUNTER
, READ
, ACCESS
, 0),
282 _PERF_HW_CACHE("perf:cpu:branch-load-misses", BPU
,
283 CONTEXT_PERF_CPU_COUNTER
, READ
, MISS
, 0),
285 PERF_SW("perf:cpu:cpu-clock", CPU_CLOCK
,
286 CONTEXT_PERF_CPU_COUNTER
, 0),
287 PERF_SW("perf:cpu:task-clock", TASK_CLOCK
,
288 CONTEXT_PERF_CPU_COUNTER
, 0),
289 PERF_SW("perf:cpu:page-fault", PAGE_FAULTS
,
290 CONTEXT_PERF_CPU_COUNTER
, 0),
291 PERF_SW("perf:cpu:faults", PAGE_FAULTS
,
292 CONTEXT_PERF_CPU_COUNTER
, 0),
293 PERF_SW("perf:cpu:major-faults", PAGE_FAULTS_MAJ
,
294 CONTEXT_PERF_CPU_COUNTER
, 0),
295 PERF_SW("perf:cpu:minor-faults", PAGE_FAULTS_MIN
,
296 CONTEXT_PERF_CPU_COUNTER
, 0),
297 PERF_SW("perf:cpu:context-switches", CONTEXT_SWITCHES
,
298 CONTEXT_PERF_CPU_COUNTER
, 0),
299 PERF_SW("perf:cpu:cs", CONTEXT_SWITCHES
,
300 CONTEXT_PERF_CPU_COUNTER
, 0),
301 PERF_SW("perf:cpu:cpu-migrations", CPU_MIGRATIONS
,
302 CONTEXT_PERF_CPU_COUNTER
, 0),
303 PERF_SW("perf:cpu:migrations", CPU_MIGRATIONS
,
304 CONTEXT_PERF_CPU_COUNTER
, 0),
305 PERF_SW("perf:cpu:alignment-faults", ALIGNMENT_FAULTS
,
306 CONTEXT_PERF_CPU_COUNTER
, 0),
307 PERF_SW("perf:cpu:emulation-faults", EMULATION_FAULTS
,
308 CONTEXT_PERF_CPU_COUNTER
, 0),
310 /* Perf per-thread counters */
311 PERF_HW("perf:thread:cpu-cycles", CPU_CYCLES
,
312 CONTEXT_PERF_THREAD_COUNTER
, 0),
313 PERF_HW("perf:thread:cycles", CPU_CYCLES
,
314 CONTEXT_PERF_THREAD_COUNTER
, 0),
315 PERF_HW("perf:thread:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND
,
316 CONTEXT_PERF_THREAD_COUNTER
, 0),
317 PERF_HW("perf:thread:idle-cycles-frontend", STALLED_CYCLES_FRONTEND
,
318 CONTEXT_PERF_THREAD_COUNTER
, 0),
319 PERF_HW("perf:thread:stalled-cycles-backend", STALLED_CYCLES_BACKEND
,
320 CONTEXT_PERF_THREAD_COUNTER
, 0),
321 PERF_HW("perf:thread:idle-cycles-backend", STALLED_CYCLES_BACKEND
,
322 CONTEXT_PERF_THREAD_COUNTER
, 0),
323 PERF_HW("perf:thread:instructions", INSTRUCTIONS
,
324 CONTEXT_PERF_THREAD_COUNTER
, 0),
325 PERF_HW("perf:thread:cache-references", CACHE_REFERENCES
,
326 CONTEXT_PERF_THREAD_COUNTER
, 0),
327 PERF_HW("perf:thread:cache-misses", CACHE_MISSES
,
328 CONTEXT_PERF_THREAD_COUNTER
, 0),
329 PERF_HW("perf:thread:branch-instructions", BRANCH_INSTRUCTIONS
,
330 CONTEXT_PERF_THREAD_COUNTER
, 0),
331 PERF_HW("perf:thread:branches", BRANCH_INSTRUCTIONS
,
332 CONTEXT_PERF_THREAD_COUNTER
, 0),
333 PERF_HW("perf:thread:branch-misses", BRANCH_MISSES
,
334 CONTEXT_PERF_THREAD_COUNTER
, 0),
335 PERF_HW("perf:thread:bus-cycles", BUS_CYCLES
,
336 CONTEXT_PERF_THREAD_COUNTER
, 0),
338 PERF_HW_CACHE("perf:thread:L1-dcache", L1D
,
339 CONTEXT_PERF_THREAD_COUNTER
, 0),
340 PERF_HW_CACHE("perf:thread:L1-icache", L1I
,
341 CONTEXT_PERF_THREAD_COUNTER
, 0),
342 PERF_HW_CACHE("perf:thread:LLC", LL
,
343 CONTEXT_PERF_THREAD_COUNTER
, 0),
344 PERF_HW_CACHE("perf:thread:dTLB", DTLB
,
345 CONTEXT_PERF_THREAD_COUNTER
, 0),
346 _PERF_HW_CACHE("perf:thread:iTLB-loads", ITLB
,
347 CONTEXT_PERF_THREAD_COUNTER
, READ
, ACCESS
, 0),
348 _PERF_HW_CACHE("perf:thread:iTLB-load-misses", ITLB
,
349 CONTEXT_PERF_THREAD_COUNTER
, READ
, MISS
, 0),
350 _PERF_HW_CACHE("perf:thread:branch-loads", BPU
,
351 CONTEXT_PERF_THREAD_COUNTER
, READ
, ACCESS
, 0),
352 _PERF_HW_CACHE("perf:thread:branch-load-misses", BPU
,
353 CONTEXT_PERF_THREAD_COUNTER
, READ
, MISS
, 0),
355 PERF_SW("perf:thread:cpu-clock", CPU_CLOCK
,
356 CONTEXT_PERF_THREAD_COUNTER
, 0),
357 PERF_SW("perf:thread:task-clock", TASK_CLOCK
,
358 CONTEXT_PERF_THREAD_COUNTER
, 0),
359 PERF_SW("perf:thread:page-fault", PAGE_FAULTS
,
360 CONTEXT_PERF_THREAD_COUNTER
, 0),
361 PERF_SW("perf:thread:faults", PAGE_FAULTS
,
362 CONTEXT_PERF_THREAD_COUNTER
, 0),
363 PERF_SW("perf:thread:major-faults", PAGE_FAULTS_MAJ
,
364 CONTEXT_PERF_THREAD_COUNTER
, 0),
365 PERF_SW("perf:thread:minor-faults", PAGE_FAULTS_MIN
,
366 CONTEXT_PERF_THREAD_COUNTER
, 0),
367 PERF_SW("perf:thread:context-switches", CONTEXT_SWITCHES
,
368 CONTEXT_PERF_THREAD_COUNTER
, 0),
369 PERF_SW("perf:thread:cs", CONTEXT_SWITCHES
,
370 CONTEXT_PERF_THREAD_COUNTER
, 0),
371 PERF_SW("perf:thread:cpu-migrations", CPU_MIGRATIONS
,
372 CONTEXT_PERF_THREAD_COUNTER
, 0),
373 PERF_SW("perf:thread:migrations", CPU_MIGRATIONS
,
374 CONTEXT_PERF_THREAD_COUNTER
, 0),
375 PERF_SW("perf:thread:alignment-faults", ALIGNMENT_FAULTS
,
376 CONTEXT_PERF_THREAD_COUNTER
, 0),
377 PERF_SW("perf:thread:emulation-faults", EMULATION_FAULTS
,
378 CONTEXT_PERF_THREAD_COUNTER
, 0),
381 * Perf per-CPU counters, backward compatibilty for names.
382 * Hidden from help listing.
384 PERF_HW("perf:cpu-cycles", CPU_CYCLES
,
385 CONTEXT_PERF_COUNTER
, 1),
386 PERF_HW("perf:cycles", CPU_CYCLES
,
387 CONTEXT_PERF_COUNTER
, 1),
388 PERF_HW("perf:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND
,
389 CONTEXT_PERF_COUNTER
, 1),
390 PERF_HW("perf:idle-cycles-frontend", STALLED_CYCLES_FRONTEND
,
391 CONTEXT_PERF_COUNTER
, 1),
392 PERF_HW("perf:stalled-cycles-backend", STALLED_CYCLES_BACKEND
,
393 CONTEXT_PERF_COUNTER
, 1),
394 PERF_HW("perf:idle-cycles-backend", STALLED_CYCLES_BACKEND
,
395 CONTEXT_PERF_COUNTER
, 1),
396 PERF_HW("perf:instructions", INSTRUCTIONS
,
397 CONTEXT_PERF_COUNTER
, 1),
398 PERF_HW("perf:cache-references", CACHE_REFERENCES
,
399 CONTEXT_PERF_COUNTER
, 1),
400 PERF_HW("perf:cache-misses", CACHE_MISSES
,
401 CONTEXT_PERF_COUNTER
, 1),
402 PERF_HW("perf:branch-instructions", BRANCH_INSTRUCTIONS
,
403 CONTEXT_PERF_COUNTER
, 1),
404 PERF_HW("perf:branches", BRANCH_INSTRUCTIONS
,
405 CONTEXT_PERF_COUNTER
, 1),
406 PERF_HW("perf:branch-misses", BRANCH_MISSES
,
407 CONTEXT_PERF_COUNTER
, 1),
408 PERF_HW("perf:bus-cycles", BUS_CYCLES
,
409 CONTEXT_PERF_COUNTER
, 1),
411 PERF_HW_CACHE("perf:L1-dcache", L1D
,
412 CONTEXT_PERF_COUNTER
, 1),
413 PERF_HW_CACHE("perf:L1-icache", L1I
,
414 CONTEXT_PERF_COUNTER
, 1),
415 PERF_HW_CACHE("perf:LLC", LL
,
416 CONTEXT_PERF_COUNTER
, 1),
417 PERF_HW_CACHE("perf:dTLB", DTLB
,
418 CONTEXT_PERF_COUNTER
, 1),
419 _PERF_HW_CACHE("perf:iTLB-loads", ITLB
,
420 CONTEXT_PERF_COUNTER
, READ
, ACCESS
, 1),
421 _PERF_HW_CACHE("perf:iTLB-load-misses", ITLB
,
422 CONTEXT_PERF_COUNTER
, READ
, MISS
, 1),
423 _PERF_HW_CACHE("perf:branch-loads", BPU
,
424 CONTEXT_PERF_COUNTER
, READ
, ACCESS
, 1),
425 _PERF_HW_CACHE("perf:branch-load-misses", BPU
,
426 CONTEXT_PERF_COUNTER
, READ
, MISS
, 1),
428 PERF_SW("perf:cpu-clock", CPU_CLOCK
,
429 CONTEXT_PERF_COUNTER
, 1),
430 PERF_SW("perf:task-clock", TASK_CLOCK
,
431 CONTEXT_PERF_COUNTER
, 1),
432 PERF_SW("perf:page-fault", PAGE_FAULTS
,
433 CONTEXT_PERF_COUNTER
, 1),
434 PERF_SW("perf:faults", PAGE_FAULTS
,
435 CONTEXT_PERF_COUNTER
, 1),
436 PERF_SW("perf:major-faults", PAGE_FAULTS_MAJ
,
437 CONTEXT_PERF_COUNTER
, 1),
438 PERF_SW("perf:minor-faults", PAGE_FAULTS_MIN
,
439 CONTEXT_PERF_COUNTER
, 1),
440 PERF_SW("perf:context-switches", CONTEXT_SWITCHES
,
441 CONTEXT_PERF_COUNTER
, 1),
442 PERF_SW("perf:cs", CONTEXT_SWITCHES
,
443 CONTEXT_PERF_COUNTER
, 1),
444 PERF_SW("perf:cpu-migrations", CPU_MIGRATIONS
,
445 CONTEXT_PERF_COUNTER
, 1),
446 PERF_SW("perf:migrations", CPU_MIGRATIONS
,
447 CONTEXT_PERF_COUNTER
, 1),
448 PERF_SW("perf:alignment-faults", ALIGNMENT_FAULTS
,
449 CONTEXT_PERF_COUNTER
, 1),
450 PERF_SW("perf:emulation-faults", EMULATION_FAULTS
,
451 CONTEXT_PERF_COUNTER
, 1),
453 { NULL
, -1 }, /* Closure */
457 #undef _PERF_HW_CACHE
462 * Context type for command line option parsing.
465 struct ctx_opts
*opt
;
466 struct cds_list_head list
;
470 * List of context type. Use to enable multiple context on a single command
473 struct ctx_type_list
{
474 struct cds_list_head head
;
476 .head
= CDS_LIST_HEAD_INIT(ctx_type_list
.head
),
480 * Pretty print context type.
482 static void print_ctx_type(FILE *ofp
)
486 while (ctx_opts
[i
].symbol
!= NULL
) {
487 if (!ctx_opts
[i
].hide_help
) {
488 fprintf(ofp
, "%s\n", ctx_opts
[i
].symbol
);
495 * Find context numerical value from string.
497 * Return -1 if not found.
499 static int find_ctx_type_idx(const char *opt
)
503 while (ctx_opts
[i
].symbol
!= NULL
) {
504 if (strcmp(opt
, ctx_opts
[i
].symbol
) == 0) {
517 enum lttng_domain_type
get_domain(void)
520 return LTTNG_DOMAIN_KERNEL
;
521 } else if (opt_userspace
) {
522 return LTTNG_DOMAIN_UST
;
523 } else if (opt_jul
) {
524 return LTTNG_DOMAIN_JUL
;
525 } else if (opt_log4j
) {
526 return LTTNG_DOMAIN_LOG4J
;
533 * Add context to channel or event.
535 static int add_context(char *session_name
)
537 int ret
= CMD_SUCCESS
, warn
= 0, success
= 0;
538 struct lttng_event_context context
;
539 struct lttng_domain dom
;
540 struct ctx_type
*type
;
543 memset(&context
, 0, sizeof(context
));
544 memset(&dom
, 0, sizeof(dom
));
546 dom
.type
= get_domain();
547 handle
= lttng_create_handle(session_name
, &dom
);
548 if (handle
== NULL
) {
554 /* Open a contexts element */
555 ret
= mi_lttng_writer_open_element(writer
, config_element_contexts
);
561 /* Iterate over all the context types given */
562 cds_list_for_each_entry(type
, &ctx_type_list
.head
, list
) {
563 context
.ctx
= (enum lttng_event_context_type
) type
->opt
->ctx_type
;
564 switch (context
.ctx
) {
565 case LTTNG_EVENT_CONTEXT_PERF_COUNTER
:
566 case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER
:
567 case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER
:
568 context
.u
.perf_counter
.type
= type
->opt
->u
.perf
.type
;
569 context
.u
.perf_counter
.config
= type
->opt
->u
.perf
.config
;
570 strncpy(context
.u
.perf_counter
.name
, type
->opt
->symbol
,
571 LTTNG_SYMBOL_NAME_LEN
);
572 context
.u
.perf_counter
.name
[LTTNG_SYMBOL_NAME_LEN
- 1] = '\0';
573 /* Replace : and - by _ */
574 while ((ptr
= strchr(context
.u
.perf_counter
.name
, '-')) != NULL
) {
577 while ((ptr
= strchr(context
.u
.perf_counter
.name
, ':')) != NULL
) {
581 case LTTNG_EVENT_CONTEXT_APP_CONTEXT
:
582 context
.u
.app_ctx
.provider_name
=
583 type
->opt
->u
.app_ctx
.provider_name
;
584 context
.u
.app_ctx
.ctx_name
=
585 type
->opt
->u
.app_ctx
.ctx_name
;
590 DBG("Adding context...");
593 /* We leave context open the update the success of the command */
594 ret
= mi_lttng_context(writer
, &context
, 1);
601 ret
= lttng_add_context(handle
, &context
, NULL
, opt_channel_name
);
603 ERR("%s: %s", type
->opt
->symbol
, lttng_strerror(ret
));
607 if (opt_channel_name
) {
608 MSG("%s context %s added to channel %s",
609 get_domain_str(dom
.type
), type
->opt
->symbol
,
612 MSG("%s context %s added to all channels",
613 get_domain_str(dom
.type
), type
->opt
->symbol
);
619 /* Is the single operation a success ? */
620 ret
= mi_lttng_writer_write_element_bool(writer
,
621 mi_lttng_element_success
, success
);
627 /* Close the context element */
628 ret
= mi_lttng_writer_close_element(writer
);
637 /* Close contexts element */
638 ret
= mi_lttng_writer_close_element(writer
);
647 lttng_destroy_handle(handle
);
650 * This means that at least one add_context failed and tells the user to
651 * look on stderr for error(s).
660 void destroy_ctx_type(struct ctx_type
*type
)
666 free(type
->opt
->symbol
);
673 struct ctx_type
*create_ctx_type(void)
675 struct ctx_type
*type
= zmalloc(sizeof(*type
));
678 PERROR("malloc ctx_type");
682 type
->opt
= zmalloc(sizeof(*type
->opt
));
684 PERROR("malloc ctx_type options");
685 destroy_ctx_type(type
);
694 int find_ctx_type_perf_raw(const char *ctx
, struct ctx_type
*type
)
698 char *tmp_list
, *cur_list
;
700 cur_list
= tmp_list
= strdup(ctx
);
702 PERROR("strdup temp list");
707 /* Looking for "perf:[cpu|thread]:raw:<mask>:<name>". */
711 next
= strtok(cur_list
, ":");
718 if (strncmp(next
, "perf", 4) != 0) {
724 if (strncmp(next
, "cpu", 3) == 0) {
725 type
->opt
->ctx_type
= CONTEXT_PERF_CPU_COUNTER
;
726 } else if (strncmp(next
, "thread", 4) == 0) {
727 type
->opt
->ctx_type
= CONTEXT_PERF_THREAD_COUNTER
;
734 if (strncmp(next
, "raw", 3) != 0) {
743 if (strlen(next
) < 2 || next
[0] != 'r') {
744 ERR("Wrong perf raw mask format: expected rNNN");
749 type
->opt
->u
.perf
.config
= strtoll(next
+ 1, &endptr
, 16);
750 if (errno
!= 0 || !endptr
|| *endptr
) {
751 ERR("Wrong perf raw mask format: expected rNNN");
761 ERR("Too many ':' in perf raw format");
769 ERR("Invalid perf counter specifier, expected a specifier of "
770 "the form perf:cpu:raw:rNNN:<name> or "
771 "perf:thread:raw:rNNN:<name>");
785 struct ctx_type
*get_context_type(const char *ctx
)
788 struct ctx_type
*type
= NULL
;
789 const char app_ctx_prefix
[] = "$app.";
790 char *provider_name
= NULL
, *ctx_name
= NULL
;
791 size_t i
, len
, colon_pos
= 0, provider_name_len
, ctx_name_len
;
797 type
= create_ctx_type();
802 /* Check if ctx matches a known static context. */
803 opt_index
= find_ctx_type_idx(ctx
);
804 if (opt_index
>= 0) {
805 *type
->opt
= ctx_opts
[opt_index
];
806 type
->opt
->symbol
= strdup(ctx_opts
[opt_index
].symbol
);
810 /* Check if ctx is a raw perf context. */
811 ret
= find_ctx_type_perf_raw(ctx
, type
);
813 type
->opt
->u
.perf
.type
= PERF_TYPE_RAW
;
814 type
->opt
->symbol
= strdup(ctx
);
815 if (!type
->opt
->symbol
) {
816 PERROR("Copy perf field name");
823 * No match found against static contexts; check if it is an app
827 if (len
<= sizeof(app_ctx_prefix
) - 1) {
831 /* String starts with $app. */
832 if (strncmp(ctx
, app_ctx_prefix
, sizeof(app_ctx_prefix
) - 1)) {
836 /* Validate that the ':' separator is present. */
837 for (i
= sizeof(app_ctx_prefix
); i
< len
; i
++) {
838 const char c
= ctx
[i
];
847 * No colon found or no ctx name ("$app.provider:") or no provider name
848 * given ("$app.:..."), which is invalid.
850 if (!colon_pos
|| colon_pos
== len
||
851 colon_pos
== sizeof(app_ctx_prefix
)) {
852 ERR("Invalid application context provided: no provider or context name provided.");
856 provider_name_len
= colon_pos
- sizeof(app_ctx_prefix
) + 2;
857 provider_name
= zmalloc(provider_name_len
);
858 if (!provider_name
) {
859 PERROR("malloc provider_name");
862 strncpy(provider_name
, ctx
+ sizeof(app_ctx_prefix
) - 1,
863 provider_name_len
- 1);
864 type
->opt
->u
.app_ctx
.provider_name
= provider_name
;
866 ctx_name_len
= len
- colon_pos
;
867 ctx_name
= zmalloc(ctx_name_len
);
869 PERROR("malloc ctx_name");
872 strncpy(ctx_name
, ctx
+ colon_pos
+ 1, ctx_name_len
- 1);
873 type
->opt
->u
.app_ctx
.ctx_name
= ctx_name
;
874 type
->opt
->ctx_type
= CONTEXT_APP_CONTEXT
;
875 type
->opt
->symbol
= strdup(ctx
);
881 destroy_ctx_type(type
);
886 * Add context to channel or event.
888 int cmd_add_context(int argc
, const char **argv
)
890 int opt
, ret
= CMD_SUCCESS
, command_ret
= CMD_SUCCESS
;
892 static poptContext pc
;
893 struct ctx_type
*type
, *tmptype
;
894 char *session_name
= NULL
;
901 pc
= poptGetContext(NULL
, argc
, argv
, long_options
, 0);
902 poptReadDefaultConfig(pc
, 0);
904 while ((opt
= poptGetNextOpt(pc
)) != -1) {
910 print_ctx_type(stdout
);
914 type
= get_context_type(opt_type
);
916 ERR("Unknown context type %s", opt_type
);
920 cds_list_add_tail(&type
->list
, &ctx_type_list
.head
);
932 case OPT_LIST_OPTIONS
:
933 list_cmd_options(stdout
, long_options
);
941 ret
= print_missing_or_multiple_domains(opt_kernel
+ opt_userspace
+
942 opt_jul
+ opt_log4j
);
949 ERR("Missing mandatory -t TYPE");
954 if (!opt_session_name
) {
955 session_name
= get_session_name();
956 if (session_name
== NULL
) {
961 session_name
= opt_session_name
;
966 writer
= mi_lttng_writer_create(fileno(stdout
), lttng_opt_mi
);
968 ret
= -LTTNG_ERR_NOMEM
;
972 /* Open command element */
973 ret
= mi_lttng_writer_command_open(writer
,
974 mi_lttng_element_command_add_context
);
980 /* Open output element */
981 ret
= mi_lttng_writer_open_element(writer
,
982 mi_lttng_element_command_output
);
989 command_ret
= add_context(session_name
);
996 /* Close output element */
997 ret
= mi_lttng_writer_close_element(writer
);
1004 ret
= mi_lttng_writer_write_element_bool(writer
,
1005 mi_lttng_element_command_success
, success
);
1011 /* Command element close */
1012 ret
= mi_lttng_writer_command_close(writer
);
1020 if (!opt_session_name
) {
1025 if (writer
&& mi_lttng_writer_destroy(writer
)) {
1026 /* Preserve original error code */
1027 ret
= ret
? ret
: LTTNG_ERR_MI_IO_FAIL
;
1030 /* Cleanup allocated memory */
1031 cds_list_for_each_entry_safe(type
, tmptype
, &ctx_type_list
.head
, list
) {
1032 destroy_ctx_type(type
);
1035 /* Overwrite ret if an error occurred during add_context() */
1036 ret
= command_ret
? command_ret
: ret
;
1038 poptFreeContext(pc
);