2 * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
3 * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
5 * SPDX-License-Identifier: GPL-2.0-only
16 #include <sys/types.h>
19 #include <urcu/list.h>
21 #include <lttng/domain-internal.h>
22 #include <common/mi-lttng.h>
24 #include "../command.h"
26 static char *opt_channel_name
;
27 static char *opt_session_name
;
28 static int opt_kernel
;
29 static int opt_userspace
;
32 static char *opt_type
;
34 #ifdef LTTNG_EMBED_HELP
35 static const char help_msg
[] =
36 #include <lttng-add-context.1.h>
50 static struct lttng_handle
*handle
;
51 static struct mi_writer
*writer
;
54 * Taken from the LTTng ABI
58 CONTEXT_PERF_COUNTER
= 1, /* Backward compat. */
67 CONTEXT_PTHREAD_ID
= 10,
68 CONTEXT_HOSTNAME
= 11,
70 CONTEXT_PERF_CPU_COUNTER
= 13,
71 CONTEXT_PERF_THREAD_COUNTER
= 14,
72 CONTEXT_APP_CONTEXT
= 15,
73 CONTEXT_INTERRUPTIBLE
= 16,
74 CONTEXT_PREEMPTIBLE
= 17,
75 CONTEXT_NEED_RESCHEDULE
= 18,
76 CONTEXT_MIGRATABLE
= 19,
77 CONTEXT_CALLSTACK_KERNEL
= 20,
78 CONTEXT_CALLSTACK_USER
= 21,
79 CONTEXT_CGROUP_NS
= 22,
102 * Taken from the Perf ABI (all enum perf_*)
105 PERF_TYPE_HARDWARE
= 0,
106 PERF_TYPE_SOFTWARE
= 1,
107 PERF_TYPE_HW_CACHE
= 3,
111 enum perf_count_hard
{
112 PERF_COUNT_HW_CPU_CYCLES
= 0,
113 PERF_COUNT_HW_INSTRUCTIONS
= 1,
114 PERF_COUNT_HW_CACHE_REFERENCES
= 2,
115 PERF_COUNT_HW_CACHE_MISSES
= 3,
116 PERF_COUNT_HW_BRANCH_INSTRUCTIONS
= 4,
117 PERF_COUNT_HW_BRANCH_MISSES
= 5,
118 PERF_COUNT_HW_BUS_CYCLES
= 6,
119 PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
= 7,
120 PERF_COUNT_HW_STALLED_CYCLES_BACKEND
= 8,
123 enum perf_count_soft
{
124 PERF_COUNT_SW_CPU_CLOCK
= 0,
125 PERF_COUNT_SW_TASK_CLOCK
= 1,
126 PERF_COUNT_SW_PAGE_FAULTS
= 2,
127 PERF_COUNT_SW_CONTEXT_SWITCHES
= 3,
128 PERF_COUNT_SW_CPU_MIGRATIONS
= 4,
129 PERF_COUNT_SW_PAGE_FAULTS_MIN
= 5,
130 PERF_COUNT_SW_PAGE_FAULTS_MAJ
= 6,
131 PERF_COUNT_SW_ALIGNMENT_FAULTS
= 7,
132 PERF_COUNT_SW_EMULATION_FAULTS
= 8,
136 * Generalized hardware cache events:
138 * { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x
139 * { read, write, prefetch } x
140 * { accesses, misses }
142 enum perf_hw_cache_id
{
143 PERF_COUNT_HW_CACHE_L1D
= 0,
144 PERF_COUNT_HW_CACHE_L1I
= 1,
145 PERF_COUNT_HW_CACHE_LL
= 2,
146 PERF_COUNT_HW_CACHE_DTLB
= 3,
147 PERF_COUNT_HW_CACHE_ITLB
= 4,
148 PERF_COUNT_HW_CACHE_BPU
= 5,
150 PERF_COUNT_HW_CACHE_MAX
, /* non-ABI */
153 enum perf_hw_cache_op_id
{
154 PERF_COUNT_HW_CACHE_OP_READ
= 0,
155 PERF_COUNT_HW_CACHE_OP_WRITE
= 1,
156 PERF_COUNT_HW_CACHE_OP_PREFETCH
= 2,
158 PERF_COUNT_HW_CACHE_OP_MAX
, /* non-ABI */
161 enum perf_hw_cache_op_result_id
{
162 PERF_COUNT_HW_CACHE_RESULT_ACCESS
= 0,
163 PERF_COUNT_HW_CACHE_RESULT_MISS
= 1,
165 PERF_COUNT_HW_CACHE_RESULT_MAX
, /* non-ABI */
168 static struct poptOption long_options
[] = {
169 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
170 {"help", 'h', POPT_ARG_NONE
, 0, OPT_HELP
, 0, 0},
171 {"session", 's', POPT_ARG_STRING
, &opt_session_name
, 0, 0, 0},
172 {"channel", 'c', POPT_ARG_STRING
, &opt_channel_name
, 0, 0, 0},
173 {"kernel", 'k', POPT_ARG_VAL
, &opt_kernel
, 1, 0, 0},
174 {"userspace", 'u', POPT_ARG_NONE
, 0, OPT_USERSPACE
, 0, 0},
175 {"jul", 'j', POPT_ARG_NONE
, 0, OPT_JUL
, 0, 0},
176 {"log4j", 'l', POPT_ARG_NONE
, 0, OPT_LOG4J
, 0, 0},
177 {"type", 't', POPT_ARG_STRING
, &opt_type
, OPT_TYPE
, 0, 0},
178 {"list", 0, POPT_ARG_NONE
, NULL
, OPT_LIST
, NULL
, NULL
},
179 {"list-options", 0, POPT_ARG_NONE
, NULL
, OPT_LIST_OPTIONS
, NULL
, NULL
},
180 {0, 0, 0, 0, 0, 0, 0}
186 #define PERF_HW(optstr, name, type, hide) \
188 (char *) optstr, type, hide, \
189 .u.perf = { PERF_TYPE_HARDWARE, PERF_COUNT_HW_##name, },\
192 #define PERF_SW(optstr, name, type, hide) \
194 (char *) optstr, type, hide, \
195 .u.perf = { PERF_TYPE_SOFTWARE, PERF_COUNT_SW_##name, },\
198 #define _PERF_HW_CACHE(optstr, name, type, op, result, hide) \
200 (char *) optstr, type, hide, \
202 PERF_TYPE_HW_CACHE, \
203 (uint64_t) PERF_COUNT_HW_CACHE_##name \
204 | ((uint64_t) PERF_COUNT_HW_CACHE_OP_##op << 8) \
205 | ((uint64_t) PERF_COUNT_HW_CACHE_RESULT_##result << 16), \
209 #define PERF_HW_CACHE(optstr, name, type, hide) \
210 _PERF_HW_CACHE(optstr "-loads", name, type, \
211 READ, ACCESS, hide), \
212 _PERF_HW_CACHE(optstr "-load-misses", name, type, \
214 _PERF_HW_CACHE(optstr "-stores", name, type, \
215 WRITE, ACCESS, hide), \
216 _PERF_HW_CACHE(optstr "-store-misses", name, type, \
217 WRITE, MISS, hide), \
218 _PERF_HW_CACHE(optstr "-prefetches", name, type, \
219 PREFETCH, ACCESS, hide), \
220 _PERF_HW_CACHE(optstr "-prefetch-misses", name, type, \
221 PREFETCH, MISS, hide)
224 const struct ctx_opts
{
226 enum context_type ctx_type
;
227 int hide_help
; /* Hide from --help */
240 * These (char *) casts (as well as those in the PERF_* macros) are
241 * safe because we never free these instances of `struct ctx_opts`.
243 { (char *) "pid", CONTEXT_PID
},
244 { (char *) "procname", CONTEXT_PROCNAME
},
245 { (char *) "prio", CONTEXT_PRIO
},
246 { (char *) "nice", CONTEXT_NICE
},
247 { (char *) "vpid", CONTEXT_VPID
},
248 { (char *) "tid", CONTEXT_TID
},
249 { (char *) "pthread_id", CONTEXT_PTHREAD_ID
},
250 { (char *) "vtid", CONTEXT_VTID
},
251 { (char *) "ppid", CONTEXT_PPID
},
252 { (char *) "vppid", CONTEXT_VPPID
},
253 { (char *) "hostname", CONTEXT_HOSTNAME
},
254 { (char *) "ip", CONTEXT_IP
},
255 { (char *) "interruptible", CONTEXT_INTERRUPTIBLE
},
256 { (char *) "preemptible", CONTEXT_PREEMPTIBLE
},
257 { (char *) "need_reschedule", CONTEXT_NEED_RESCHEDULE
},
258 { (char *) "migratable", CONTEXT_MIGRATABLE
},
259 { (char *) "callstack-kernel", CONTEXT_CALLSTACK_KERNEL
},
260 #if HAVE_MODULES_USERSPACE_CALLSTACK_CONTEXT
261 { (char *) "callstack-user", CONTEXT_CALLSTACK_USER
},
263 { (char *) "cgroup_ns", CONTEXT_CGROUP_NS
},
264 { (char *) "ipc_ns", CONTEXT_IPC_NS
},
265 { (char *) "mnt_ns", CONTEXT_MNT_NS
},
266 { (char *) "net_ns", CONTEXT_NET_NS
},
267 { (char *) "pid_ns", CONTEXT_PID_NS
},
268 { (char *) "time_ns", CONTEXT_TIME_NS
},
269 { (char *) "user_ns", CONTEXT_USER_NS
},
270 { (char *) "uts_ns", CONTEXT_UTS_NS
},
271 { (char *) "uid", CONTEXT_UID
},
272 { (char *) "euid", CONTEXT_EUID
},
273 { (char *) "suid", CONTEXT_SUID
},
274 { (char *) "gid", CONTEXT_GID
},
275 { (char *) "egid", CONTEXT_EGID
},
276 { (char *) "sgid", CONTEXT_SGID
},
277 { (char *) "vuid", CONTEXT_VUID
},
278 { (char *) "veuid", CONTEXT_VEUID
},
279 { (char *) "vsuid", CONTEXT_VSUID
},
280 { (char *) "vgid", CONTEXT_VGID
},
281 { (char *) "vegid", CONTEXT_VEGID
},
282 { (char *) "vsgid", CONTEXT_VSGID
},
286 /* Perf per-CPU counters */
287 PERF_HW("perf:cpu:cpu-cycles", CPU_CYCLES
,
288 CONTEXT_PERF_CPU_COUNTER
, 0),
289 PERF_HW("perf:cpu:cycles", CPU_CYCLES
,
290 CONTEXT_PERF_CPU_COUNTER
, 0),
291 PERF_HW("perf:cpu:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND
,
292 CONTEXT_PERF_CPU_COUNTER
, 0),
293 PERF_HW("perf:cpu:idle-cycles-frontend", STALLED_CYCLES_FRONTEND
,
294 CONTEXT_PERF_CPU_COUNTER
, 0),
295 PERF_HW("perf:cpu:stalled-cycles-backend", STALLED_CYCLES_BACKEND
,
296 CONTEXT_PERF_CPU_COUNTER
, 0),
297 PERF_HW("perf:cpu:idle-cycles-backend", STALLED_CYCLES_BACKEND
,
298 CONTEXT_PERF_CPU_COUNTER
, 0),
299 PERF_HW("perf:cpu:instructions", INSTRUCTIONS
,
300 CONTEXT_PERF_CPU_COUNTER
, 0),
301 PERF_HW("perf:cpu:cache-references", CACHE_REFERENCES
,
302 CONTEXT_PERF_CPU_COUNTER
, 0),
303 PERF_HW("perf:cpu:cache-misses", CACHE_MISSES
,
304 CONTEXT_PERF_CPU_COUNTER
, 0),
305 PERF_HW("perf:cpu:branch-instructions", BRANCH_INSTRUCTIONS
,
306 CONTEXT_PERF_CPU_COUNTER
, 0),
307 PERF_HW("perf:cpu:branches", BRANCH_INSTRUCTIONS
,
308 CONTEXT_PERF_CPU_COUNTER
, 0),
309 PERF_HW("perf:cpu:branch-misses", BRANCH_MISSES
,
310 CONTEXT_PERF_CPU_COUNTER
, 0),
311 PERF_HW("perf:cpu:bus-cycles", BUS_CYCLES
,
312 CONTEXT_PERF_CPU_COUNTER
, 0),
314 PERF_HW_CACHE("perf:cpu:L1-dcache", L1D
,
315 CONTEXT_PERF_CPU_COUNTER
, 0),
316 PERF_HW_CACHE("perf:cpu:L1-icache", L1I
,
317 CONTEXT_PERF_CPU_COUNTER
, 0),
318 PERF_HW_CACHE("perf:cpu:LLC", LL
,
319 CONTEXT_PERF_CPU_COUNTER
, 0),
320 PERF_HW_CACHE("perf:cpu:dTLB", DTLB
,
321 CONTEXT_PERF_CPU_COUNTER
, 0),
322 _PERF_HW_CACHE("perf:cpu:iTLB-loads", ITLB
,
323 CONTEXT_PERF_CPU_COUNTER
, READ
, ACCESS
, 0),
324 _PERF_HW_CACHE("perf:cpu:iTLB-load-misses", ITLB
,
325 CONTEXT_PERF_CPU_COUNTER
, READ
, MISS
, 0),
326 _PERF_HW_CACHE("perf:cpu:branch-loads", BPU
,
327 CONTEXT_PERF_CPU_COUNTER
, READ
, ACCESS
, 0),
328 _PERF_HW_CACHE("perf:cpu:branch-load-misses", BPU
,
329 CONTEXT_PERF_CPU_COUNTER
, READ
, MISS
, 0),
331 PERF_SW("perf:cpu:cpu-clock", CPU_CLOCK
,
332 CONTEXT_PERF_CPU_COUNTER
, 0),
333 PERF_SW("perf:cpu:task-clock", TASK_CLOCK
,
334 CONTEXT_PERF_CPU_COUNTER
, 0),
335 PERF_SW("perf:cpu:page-fault", PAGE_FAULTS
,
336 CONTEXT_PERF_CPU_COUNTER
, 0),
337 PERF_SW("perf:cpu:faults", PAGE_FAULTS
,
338 CONTEXT_PERF_CPU_COUNTER
, 0),
339 PERF_SW("perf:cpu:major-faults", PAGE_FAULTS_MAJ
,
340 CONTEXT_PERF_CPU_COUNTER
, 0),
341 PERF_SW("perf:cpu:minor-faults", PAGE_FAULTS_MIN
,
342 CONTEXT_PERF_CPU_COUNTER
, 0),
343 PERF_SW("perf:cpu:context-switches", CONTEXT_SWITCHES
,
344 CONTEXT_PERF_CPU_COUNTER
, 0),
345 PERF_SW("perf:cpu:cs", CONTEXT_SWITCHES
,
346 CONTEXT_PERF_CPU_COUNTER
, 0),
347 PERF_SW("perf:cpu:cpu-migrations", CPU_MIGRATIONS
,
348 CONTEXT_PERF_CPU_COUNTER
, 0),
349 PERF_SW("perf:cpu:migrations", CPU_MIGRATIONS
,
350 CONTEXT_PERF_CPU_COUNTER
, 0),
351 PERF_SW("perf:cpu:alignment-faults", ALIGNMENT_FAULTS
,
352 CONTEXT_PERF_CPU_COUNTER
, 0),
353 PERF_SW("perf:cpu:emulation-faults", EMULATION_FAULTS
,
354 CONTEXT_PERF_CPU_COUNTER
, 0),
356 /* Perf per-thread counters */
357 PERF_HW("perf:thread:cpu-cycles", CPU_CYCLES
,
358 CONTEXT_PERF_THREAD_COUNTER
, 0),
359 PERF_HW("perf:thread:cycles", CPU_CYCLES
,
360 CONTEXT_PERF_THREAD_COUNTER
, 0),
361 PERF_HW("perf:thread:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND
,
362 CONTEXT_PERF_THREAD_COUNTER
, 0),
363 PERF_HW("perf:thread:idle-cycles-frontend", STALLED_CYCLES_FRONTEND
,
364 CONTEXT_PERF_THREAD_COUNTER
, 0),
365 PERF_HW("perf:thread:stalled-cycles-backend", STALLED_CYCLES_BACKEND
,
366 CONTEXT_PERF_THREAD_COUNTER
, 0),
367 PERF_HW("perf:thread:idle-cycles-backend", STALLED_CYCLES_BACKEND
,
368 CONTEXT_PERF_THREAD_COUNTER
, 0),
369 PERF_HW("perf:thread:instructions", INSTRUCTIONS
,
370 CONTEXT_PERF_THREAD_COUNTER
, 0),
371 PERF_HW("perf:thread:cache-references", CACHE_REFERENCES
,
372 CONTEXT_PERF_THREAD_COUNTER
, 0),
373 PERF_HW("perf:thread:cache-misses", CACHE_MISSES
,
374 CONTEXT_PERF_THREAD_COUNTER
, 0),
375 PERF_HW("perf:thread:branch-instructions", BRANCH_INSTRUCTIONS
,
376 CONTEXT_PERF_THREAD_COUNTER
, 0),
377 PERF_HW("perf:thread:branches", BRANCH_INSTRUCTIONS
,
378 CONTEXT_PERF_THREAD_COUNTER
, 0),
379 PERF_HW("perf:thread:branch-misses", BRANCH_MISSES
,
380 CONTEXT_PERF_THREAD_COUNTER
, 0),
381 PERF_HW("perf:thread:bus-cycles", BUS_CYCLES
,
382 CONTEXT_PERF_THREAD_COUNTER
, 0),
384 PERF_HW_CACHE("perf:thread:L1-dcache", L1D
,
385 CONTEXT_PERF_THREAD_COUNTER
, 0),
386 PERF_HW_CACHE("perf:thread:L1-icache", L1I
,
387 CONTEXT_PERF_THREAD_COUNTER
, 0),
388 PERF_HW_CACHE("perf:thread:LLC", LL
,
389 CONTEXT_PERF_THREAD_COUNTER
, 0),
390 PERF_HW_CACHE("perf:thread:dTLB", DTLB
,
391 CONTEXT_PERF_THREAD_COUNTER
, 0),
392 _PERF_HW_CACHE("perf:thread:iTLB-loads", ITLB
,
393 CONTEXT_PERF_THREAD_COUNTER
, READ
, ACCESS
, 0),
394 _PERF_HW_CACHE("perf:thread:iTLB-load-misses", ITLB
,
395 CONTEXT_PERF_THREAD_COUNTER
, READ
, MISS
, 0),
396 _PERF_HW_CACHE("perf:thread:branch-loads", BPU
,
397 CONTEXT_PERF_THREAD_COUNTER
, READ
, ACCESS
, 0),
398 _PERF_HW_CACHE("perf:thread:branch-load-misses", BPU
,
399 CONTEXT_PERF_THREAD_COUNTER
, READ
, MISS
, 0),
401 PERF_SW("perf:thread:cpu-clock", CPU_CLOCK
,
402 CONTEXT_PERF_THREAD_COUNTER
, 0),
403 PERF_SW("perf:thread:task-clock", TASK_CLOCK
,
404 CONTEXT_PERF_THREAD_COUNTER
, 0),
405 PERF_SW("perf:thread:page-fault", PAGE_FAULTS
,
406 CONTEXT_PERF_THREAD_COUNTER
, 0),
407 PERF_SW("perf:thread:faults", PAGE_FAULTS
,
408 CONTEXT_PERF_THREAD_COUNTER
, 0),
409 PERF_SW("perf:thread:major-faults", PAGE_FAULTS_MAJ
,
410 CONTEXT_PERF_THREAD_COUNTER
, 0),
411 PERF_SW("perf:thread:minor-faults", PAGE_FAULTS_MIN
,
412 CONTEXT_PERF_THREAD_COUNTER
, 0),
413 PERF_SW("perf:thread:context-switches", CONTEXT_SWITCHES
,
414 CONTEXT_PERF_THREAD_COUNTER
, 0),
415 PERF_SW("perf:thread:cs", CONTEXT_SWITCHES
,
416 CONTEXT_PERF_THREAD_COUNTER
, 0),
417 PERF_SW("perf:thread:cpu-migrations", CPU_MIGRATIONS
,
418 CONTEXT_PERF_THREAD_COUNTER
, 0),
419 PERF_SW("perf:thread:migrations", CPU_MIGRATIONS
,
420 CONTEXT_PERF_THREAD_COUNTER
, 0),
421 PERF_SW("perf:thread:alignment-faults", ALIGNMENT_FAULTS
,
422 CONTEXT_PERF_THREAD_COUNTER
, 0),
423 PERF_SW("perf:thread:emulation-faults", EMULATION_FAULTS
,
424 CONTEXT_PERF_THREAD_COUNTER
, 0),
427 * Perf per-CPU counters, backward compatibilty for names.
428 * Hidden from help listing.
430 PERF_HW("perf:cpu-cycles", CPU_CYCLES
,
431 CONTEXT_PERF_COUNTER
, 1),
432 PERF_HW("perf:cycles", CPU_CYCLES
,
433 CONTEXT_PERF_COUNTER
, 1),
434 PERF_HW("perf:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND
,
435 CONTEXT_PERF_COUNTER
, 1),
436 PERF_HW("perf:idle-cycles-frontend", STALLED_CYCLES_FRONTEND
,
437 CONTEXT_PERF_COUNTER
, 1),
438 PERF_HW("perf:stalled-cycles-backend", STALLED_CYCLES_BACKEND
,
439 CONTEXT_PERF_COUNTER
, 1),
440 PERF_HW("perf:idle-cycles-backend", STALLED_CYCLES_BACKEND
,
441 CONTEXT_PERF_COUNTER
, 1),
442 PERF_HW("perf:instructions", INSTRUCTIONS
,
443 CONTEXT_PERF_COUNTER
, 1),
444 PERF_HW("perf:cache-references", CACHE_REFERENCES
,
445 CONTEXT_PERF_COUNTER
, 1),
446 PERF_HW("perf:cache-misses", CACHE_MISSES
,
447 CONTEXT_PERF_COUNTER
, 1),
448 PERF_HW("perf:branch-instructions", BRANCH_INSTRUCTIONS
,
449 CONTEXT_PERF_COUNTER
, 1),
450 PERF_HW("perf:branches", BRANCH_INSTRUCTIONS
,
451 CONTEXT_PERF_COUNTER
, 1),
452 PERF_HW("perf:branch-misses", BRANCH_MISSES
,
453 CONTEXT_PERF_COUNTER
, 1),
454 PERF_HW("perf:bus-cycles", BUS_CYCLES
,
455 CONTEXT_PERF_COUNTER
, 1),
457 PERF_HW_CACHE("perf:L1-dcache", L1D
,
458 CONTEXT_PERF_COUNTER
, 1),
459 PERF_HW_CACHE("perf:L1-icache", L1I
,
460 CONTEXT_PERF_COUNTER
, 1),
461 PERF_HW_CACHE("perf:LLC", LL
,
462 CONTEXT_PERF_COUNTER
, 1),
463 PERF_HW_CACHE("perf:dTLB", DTLB
,
464 CONTEXT_PERF_COUNTER
, 1),
465 _PERF_HW_CACHE("perf:iTLB-loads", ITLB
,
466 CONTEXT_PERF_COUNTER
, READ
, ACCESS
, 1),
467 _PERF_HW_CACHE("perf:iTLB-load-misses", ITLB
,
468 CONTEXT_PERF_COUNTER
, READ
, MISS
, 1),
469 _PERF_HW_CACHE("perf:branch-loads", BPU
,
470 CONTEXT_PERF_COUNTER
, READ
, ACCESS
, 1),
471 _PERF_HW_CACHE("perf:branch-load-misses", BPU
,
472 CONTEXT_PERF_COUNTER
, READ
, MISS
, 1),
474 PERF_SW("perf:cpu-clock", CPU_CLOCK
,
475 CONTEXT_PERF_COUNTER
, 1),
476 PERF_SW("perf:task-clock", TASK_CLOCK
,
477 CONTEXT_PERF_COUNTER
, 1),
478 PERF_SW("perf:page-fault", PAGE_FAULTS
,
479 CONTEXT_PERF_COUNTER
, 1),
480 PERF_SW("perf:faults", PAGE_FAULTS
,
481 CONTEXT_PERF_COUNTER
, 1),
482 PERF_SW("perf:major-faults", PAGE_FAULTS_MAJ
,
483 CONTEXT_PERF_COUNTER
, 1),
484 PERF_SW("perf:minor-faults", PAGE_FAULTS_MIN
,
485 CONTEXT_PERF_COUNTER
, 1),
486 PERF_SW("perf:context-switches", CONTEXT_SWITCHES
,
487 CONTEXT_PERF_COUNTER
, 1),
488 PERF_SW("perf:cs", CONTEXT_SWITCHES
,
489 CONTEXT_PERF_COUNTER
, 1),
490 PERF_SW("perf:cpu-migrations", CPU_MIGRATIONS
,
491 CONTEXT_PERF_COUNTER
, 1),
492 PERF_SW("perf:migrations", CPU_MIGRATIONS
,
493 CONTEXT_PERF_COUNTER
, 1),
494 PERF_SW("perf:alignment-faults", ALIGNMENT_FAULTS
,
495 CONTEXT_PERF_COUNTER
, 1),
496 PERF_SW("perf:emulation-faults", EMULATION_FAULTS
,
497 CONTEXT_PERF_COUNTER
, 1),
499 { NULL
, -1 }, /* Closure */
503 #undef _PERF_HW_CACHE
508 * Context type for command line option parsing.
511 struct ctx_opts
*opt
;
512 struct cds_list_head list
;
516 * List of context type. Use to enable multiple context on a single command
519 struct ctx_type_list
{
520 struct cds_list_head head
;
522 .head
= CDS_LIST_HEAD_INIT(ctx_type_list
.head
),
528 * Find context numerical value from string.
530 * Return -1 if not found.
532 static int find_ctx_type_idx(const char *opt
)
536 while (ctx_opts
[i
].symbol
!= NULL
) {
537 if (strcmp(opt
, ctx_opts
[i
].symbol
) == 0) {
550 enum lttng_domain_type
get_domain(void)
553 return LTTNG_DOMAIN_KERNEL
;
554 } else if (opt_userspace
) {
555 return LTTNG_DOMAIN_UST
;
556 } else if (opt_jul
) {
557 return LTTNG_DOMAIN_JUL
;
558 } else if (opt_log4j
) {
559 return LTTNG_DOMAIN_LOG4J
;
576 ret
= fileno(stdout
);
578 PERROR("Unable to retrieve fileno of stdout");
583 writer
= mi_lttng_writer_create(ret
, lttng_opt_mi
);
589 /* Open command element */
590 ret
= mi_lttng_writer_command_open(writer
,
591 mi_lttng_element_command_add_context
);
597 /* Open output element */
598 ret
= mi_lttng_writer_open_element(writer
,
599 mi_lttng_element_command_output
);
609 int mi_close(enum cmd_error_code success
)
618 /* Close output element */
619 ret
= mi_lttng_writer_close_element(writer
);
626 ret
= mi_lttng_writer_write_element_bool(writer
,
627 mi_lttng_element_command_success
, !success
);
633 /* Command element close */
634 ret
= mi_lttng_writer_command_close(writer
);
644 void populate_context(struct lttng_event_context
*context
,
645 const struct ctx_opts
*opt
)
649 context
->ctx
= (enum lttng_event_context_type
) opt
->ctx_type
;
650 switch (context
->ctx
) {
651 case LTTNG_EVENT_CONTEXT_PERF_COUNTER
:
652 case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER
:
653 case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER
:
654 context
->u
.perf_counter
.type
= opt
->u
.perf
.type
;
655 context
->u
.perf_counter
.config
= opt
->u
.perf
.config
;
656 strncpy(context
->u
.perf_counter
.name
, opt
->symbol
,
657 LTTNG_SYMBOL_NAME_LEN
);
658 context
->u
.perf_counter
.name
[LTTNG_SYMBOL_NAME_LEN
- 1] = '\0';
659 /* Replace : and - by _ */
660 while ((ptr
= strchr(context
->u
.perf_counter
.name
, '-')) != NULL
) {
663 while ((ptr
= strchr(context
->u
.perf_counter
.name
, ':')) != NULL
) {
667 case LTTNG_EVENT_CONTEXT_APP_CONTEXT
:
668 context
->u
.app_ctx
.provider_name
=
669 opt
->u
.app_ctx
.provider_name
;
670 context
->u
.app_ctx
.ctx_name
=
671 opt
->u
.app_ctx
.ctx_name
;
679 * Pretty print context type.
682 int print_ctx_type(void)
688 struct lttng_event_context context
;
690 memset(&context
, 0, sizeof(context
));
699 /* Open a contexts element */
700 ret
= mi_lttng_writer_open_element(writer
, config_element_contexts
);
707 while (ctx_opts
[i
].symbol
!= NULL
) {
708 if (!ctx_opts
[i
].hide_help
) {
710 populate_context(&context
, &ctx_opts
[i
]);
711 ret
= mi_lttng_context(writer
, &context
, 1);
717 ret
= mi_lttng_writer_write_element_string(
719 mi_lttng_element_context_symbol
,
726 ret
= mi_lttng_writer_close_element(writer
);
732 fprintf(ofp
, "%s\n", ctx_opts
[i
].symbol
);
739 /* Close contexts element */
740 ret
= mi_lttng_writer_close_element(writer
);
755 * Add context to channel or event.
757 static int add_context(char *session_name
)
759 int ret
= CMD_SUCCESS
, warn
= 0, success
= 0;
760 struct lttng_event_context context
;
761 struct lttng_domain dom
;
762 struct ctx_type
*type
;
764 memset(&context
, 0, sizeof(context
));
765 memset(&dom
, 0, sizeof(dom
));
767 dom
.type
= get_domain();
768 handle
= lttng_create_handle(session_name
, &dom
);
769 if (handle
== NULL
) {
775 /* Open a contexts element */
776 ret
= mi_lttng_writer_open_element(writer
, config_element_contexts
);
782 /* Iterate over all the context types given */
783 cds_list_for_each_entry(type
, &ctx_type_list
.head
, list
) {
784 DBG("Adding context...");
786 populate_context(&context
, type
->opt
);
789 /* We leave context open the update the success of the command */
790 ret
= mi_lttng_context(writer
, &context
, 1);
796 ret
= mi_lttng_writer_write_element_string(writer
,
797 mi_lttng_element_context_symbol
,
805 ret
= lttng_add_context(handle
, &context
, NULL
, opt_channel_name
);
807 ERR("%s: %s", type
->opt
->symbol
, lttng_strerror(ret
));
811 if (opt_channel_name
) {
812 MSG("%s context %s added to channel %s",
813 lttng_domain_type_str(dom
.type
),
817 MSG("%s context %s added to all channels",
818 lttng_domain_type_str(dom
.type
),
825 /* Is the single operation a success ? */
826 ret
= mi_lttng_writer_write_element_bool(writer
,
827 mi_lttng_element_success
, success
);
833 /* Close the context element */
834 ret
= mi_lttng_writer_close_element(writer
);
843 /* Close contexts element */
844 ret
= mi_lttng_writer_close_element(writer
);
853 lttng_destroy_handle(handle
);
856 * This means that at least one add_context failed and tells the user to
857 * look on stderr for error(s).
866 void destroy_ctx_type(struct ctx_type
*type
)
872 free(type
->opt
->symbol
);
879 struct ctx_type
*create_ctx_type(void)
881 struct ctx_type
*type
= zmalloc(sizeof(*type
));
884 PERROR("malloc ctx_type");
888 type
->opt
= zmalloc(sizeof(*type
->opt
));
890 PERROR("malloc ctx_type options");
891 destroy_ctx_type(type
);
900 int find_ctx_type_perf_raw(const char *ctx
, struct ctx_type
*type
)
904 char *tmp_list
, *cur_list
;
906 cur_list
= tmp_list
= strdup(ctx
);
908 PERROR("strdup temp list");
913 /* Looking for "perf:[cpu|thread]:raw:<mask>:<name>". */
917 next
= strtok(cur_list
, ":");
924 if (strncmp(next
, "perf", 4) != 0) {
930 if (strncmp(next
, "cpu", 3) == 0) {
931 type
->opt
->ctx_type
= CONTEXT_PERF_CPU_COUNTER
;
932 } else if (strncmp(next
, "thread", 4) == 0) {
933 type
->opt
->ctx_type
= CONTEXT_PERF_THREAD_COUNTER
;
940 if (strncmp(next
, "raw", 3) != 0) {
949 if (strlen(next
) < 2 || next
[0] != 'r') {
950 ERR("Wrong perf raw mask format: expected rNNN");
955 type
->opt
->u
.perf
.config
= strtoll(next
+ 1, &endptr
, 16);
956 if (errno
!= 0 || !endptr
|| *endptr
) {
957 ERR("Wrong perf raw mask format: expected rNNN");
967 ERR("Too many ':' in perf raw format");
975 ERR("Invalid perf counter specifier, expected a specifier of "
976 "the form perf:cpu:raw:rNNN:<name> or "
977 "perf:thread:raw:rNNN:<name>");
991 struct ctx_type
*get_context_type(const char *ctx
)
994 struct ctx_type
*type
= NULL
;
995 const char app_ctx_prefix
[] = "$app.";
996 char *provider_name
= NULL
, *ctx_name
= NULL
;
997 size_t i
, len
, colon_pos
= 0, provider_name_len
, ctx_name_len
;
1003 type
= create_ctx_type();
1008 /* Check if ctx matches a known static context. */
1009 opt_index
= find_ctx_type_idx(ctx
);
1010 if (opt_index
>= 0) {
1011 *type
->opt
= ctx_opts
[opt_index
];
1012 type
->opt
->symbol
= strdup(ctx_opts
[opt_index
].symbol
);
1016 /* Check if ctx is a raw perf context. */
1017 ret
= find_ctx_type_perf_raw(ctx
, type
);
1019 type
->opt
->u
.perf
.type
= PERF_TYPE_RAW
;
1020 type
->opt
->symbol
= strdup(ctx
);
1021 if (!type
->opt
->symbol
) {
1022 PERROR("Copy perf field name");
1029 * No match found against static contexts; check if it is an app
1033 if (len
<= sizeof(app_ctx_prefix
) - 1) {
1037 /* String starts with $app. */
1038 if (strncmp(ctx
, app_ctx_prefix
, sizeof(app_ctx_prefix
) - 1)) {
1042 /* Validate that the ':' separator is present. */
1043 for (i
= sizeof(app_ctx_prefix
); i
< len
; i
++) {
1044 const char c
= ctx
[i
];
1053 * No colon found or no ctx name ("$app.provider:") or no provider name
1054 * given ("$app.:..."), which is invalid.
1056 if (!colon_pos
|| colon_pos
== len
||
1057 colon_pos
== sizeof(app_ctx_prefix
)) {
1058 ERR("Invalid application context provided: no provider or context name provided.");
1062 provider_name_len
= colon_pos
- sizeof(app_ctx_prefix
) + 2;
1063 provider_name
= zmalloc(provider_name_len
);
1064 if (!provider_name
) {
1065 PERROR("malloc provider_name");
1068 strncpy(provider_name
, ctx
+ sizeof(app_ctx_prefix
) - 1,
1069 provider_name_len
- 1);
1070 type
->opt
->u
.app_ctx
.provider_name
= provider_name
;
1072 ctx_name_len
= len
- colon_pos
;
1073 ctx_name
= zmalloc(ctx_name_len
);
1075 PERROR("malloc ctx_name");
1078 strncpy(ctx_name
, ctx
+ colon_pos
+ 1, ctx_name_len
- 1);
1079 type
->opt
->u
.app_ctx
.ctx_name
= ctx_name
;
1080 type
->opt
->ctx_type
= CONTEXT_APP_CONTEXT
;
1081 type
->opt
->symbol
= strdup(ctx
);
1085 free(provider_name
);
1087 destroy_ctx_type(type
);
1092 * Add context to channel or event.
1094 int cmd_add_context(int argc
, const char **argv
)
1096 int opt
, ret
= CMD_SUCCESS
, command_ret
= CMD_SUCCESS
;
1097 static poptContext pc
;
1098 struct ctx_type
*type
, *tmptype
;
1099 char *session_name
= NULL
;
1100 const char *leftover
= NULL
;
1107 pc
= poptGetContext(NULL
, argc
, argv
, long_options
, 0);
1108 poptReadDefaultConfig(pc
, 0);
1110 while ((opt
= poptGetNextOpt(pc
)) != -1) {
1116 ret
= print_ctx_type();
1120 type
= get_context_type(opt_type
);
1122 ERR("Unknown context type %s", opt_type
);
1126 cds_list_add_tail(&type
->list
, &ctx_type_list
.head
);
1138 case OPT_LIST_OPTIONS
:
1139 list_cmd_options(stdout
, long_options
);
1142 ret
= CMD_UNDEFINED
;
1147 leftover
= poptGetArg(pc
);
1149 ERR("Unknown argument: %s", leftover
);
1154 ret
= print_missing_or_multiple_domains(
1155 opt_kernel
+ opt_userspace
+ opt_jul
+ opt_log4j
, true);
1162 ERR("Missing mandatory -t TYPE");
1167 if (!opt_session_name
) {
1168 session_name
= get_session_name();
1169 if (session_name
== NULL
) {
1174 session_name
= opt_session_name
;
1182 command_ret
= add_context(session_name
);
1183 ret
= mi_close(command_ret
);
1189 if (!opt_session_name
) {
1194 if (writer
&& mi_lttng_writer_destroy(writer
)) {
1195 /* Preserve original error code */
1196 ret
= ret
? ret
: LTTNG_ERR_MI_IO_FAIL
;
1199 /* Cleanup allocated memory */
1200 cds_list_for_each_entry_safe(type
, tmptype
, &ctx_type_list
.head
, list
) {
1201 destroy_ctx_type(type
);
1204 /* Overwrite ret if an error occurred during add_context() */
1205 ret
= command_ret
? command_ret
: ret
;
1207 poptFreeContext(pc
);