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
;
44 #ifdef LTTNG_EMBED_HELP
45 static const char help_msg
[] =
46 #include <lttng-add-context.1.h>
60 static struct lttng_handle
*handle
;
61 static struct mi_writer
*writer
;
64 * Taken from the LTTng ABI
68 CONTEXT_PERF_COUNTER
= 1, /* Backward compat. */
77 CONTEXT_PTHREAD_ID
= 10,
78 CONTEXT_HOSTNAME
= 11,
80 CONTEXT_PERF_CPU_COUNTER
= 13,
81 CONTEXT_PERF_THREAD_COUNTER
= 14,
82 CONTEXT_APP_CONTEXT
= 15,
83 CONTEXT_INTERRUPTIBLE
= 16,
84 CONTEXT_PREEMPTIBLE
= 17,
85 CONTEXT_NEED_RESCHEDULE
= 18,
86 CONTEXT_MIGRATABLE
= 19,
87 CONTEXT_CALLSTACK_KERNEL
= 20,
88 CONTEXT_CALLSTACK_USER
= 21,
89 CONTEXT_CGROUP_NS
= 22,
111 * Taken from the Perf ABI (all enum perf_*)
114 PERF_TYPE_HARDWARE
= 0,
115 PERF_TYPE_SOFTWARE
= 1,
116 PERF_TYPE_HW_CACHE
= 3,
120 enum perf_count_hard
{
121 PERF_COUNT_HW_CPU_CYCLES
= 0,
122 PERF_COUNT_HW_INSTRUCTIONS
= 1,
123 PERF_COUNT_HW_CACHE_REFERENCES
= 2,
124 PERF_COUNT_HW_CACHE_MISSES
= 3,
125 PERF_COUNT_HW_BRANCH_INSTRUCTIONS
= 4,
126 PERF_COUNT_HW_BRANCH_MISSES
= 5,
127 PERF_COUNT_HW_BUS_CYCLES
= 6,
128 PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
= 7,
129 PERF_COUNT_HW_STALLED_CYCLES_BACKEND
= 8,
132 enum perf_count_soft
{
133 PERF_COUNT_SW_CPU_CLOCK
= 0,
134 PERF_COUNT_SW_TASK_CLOCK
= 1,
135 PERF_COUNT_SW_PAGE_FAULTS
= 2,
136 PERF_COUNT_SW_CONTEXT_SWITCHES
= 3,
137 PERF_COUNT_SW_CPU_MIGRATIONS
= 4,
138 PERF_COUNT_SW_PAGE_FAULTS_MIN
= 5,
139 PERF_COUNT_SW_PAGE_FAULTS_MAJ
= 6,
140 PERF_COUNT_SW_ALIGNMENT_FAULTS
= 7,
141 PERF_COUNT_SW_EMULATION_FAULTS
= 8,
145 * Generalized hardware cache events:
147 * { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x
148 * { read, write, prefetch } x
149 * { accesses, misses }
151 enum perf_hw_cache_id
{
152 PERF_COUNT_HW_CACHE_L1D
= 0,
153 PERF_COUNT_HW_CACHE_L1I
= 1,
154 PERF_COUNT_HW_CACHE_LL
= 2,
155 PERF_COUNT_HW_CACHE_DTLB
= 3,
156 PERF_COUNT_HW_CACHE_ITLB
= 4,
157 PERF_COUNT_HW_CACHE_BPU
= 5,
159 PERF_COUNT_HW_CACHE_MAX
, /* non-ABI */
162 enum perf_hw_cache_op_id
{
163 PERF_COUNT_HW_CACHE_OP_READ
= 0,
164 PERF_COUNT_HW_CACHE_OP_WRITE
= 1,
165 PERF_COUNT_HW_CACHE_OP_PREFETCH
= 2,
167 PERF_COUNT_HW_CACHE_OP_MAX
, /* non-ABI */
170 enum perf_hw_cache_op_result_id
{
171 PERF_COUNT_HW_CACHE_RESULT_ACCESS
= 0,
172 PERF_COUNT_HW_CACHE_RESULT_MISS
= 1,
174 PERF_COUNT_HW_CACHE_RESULT_MAX
, /* non-ABI */
177 static struct poptOption long_options
[] = {
178 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
179 {"help", 'h', POPT_ARG_NONE
, 0, OPT_HELP
, 0, 0},
180 {"session", 's', POPT_ARG_STRING
, &opt_session_name
, 0, 0, 0},
181 {"channel", 'c', POPT_ARG_STRING
, &opt_channel_name
, 0, 0, 0},
182 {"kernel", 'k', POPT_ARG_VAL
, &opt_kernel
, 1, 0, 0},
183 {"userspace", 'u', POPT_ARG_NONE
, 0, OPT_USERSPACE
, 0, 0},
184 {"jul", 'j', POPT_ARG_NONE
, 0, OPT_JUL
, 0, 0},
185 {"log4j", 'l', POPT_ARG_NONE
, 0, OPT_LOG4J
, 0, 0},
186 {"type", 't', POPT_ARG_STRING
, &opt_type
, OPT_TYPE
, 0, 0},
187 {"list", 0, POPT_ARG_NONE
, NULL
, OPT_LIST
, NULL
, NULL
},
188 {"list-options", 0, POPT_ARG_NONE
, NULL
, OPT_LIST_OPTIONS
, NULL
, NULL
},
189 {0, 0, 0, 0, 0, 0, 0}
195 #define PERF_HW(optstr, name, type, hide) \
197 optstr, type, hide, \
198 .u.perf = { PERF_TYPE_HARDWARE, PERF_COUNT_HW_##name, },\
201 #define PERF_SW(optstr, name, type, hide) \
203 optstr, type, hide, \
204 .u.perf = { PERF_TYPE_SOFTWARE, PERF_COUNT_SW_##name, },\
207 #define _PERF_HW_CACHE(optstr, name, type, op, result, hide) \
209 optstr, type, hide, \
211 PERF_TYPE_HW_CACHE, \
212 (uint64_t) PERF_COUNT_HW_CACHE_##name \
213 | ((uint64_t) PERF_COUNT_HW_CACHE_OP_##op << 8) \
214 | ((uint64_t) PERF_COUNT_HW_CACHE_RESULT_##result << 16), \
218 #define PERF_HW_CACHE(optstr, name, type, hide) \
219 _PERF_HW_CACHE(optstr "-loads", name, type, \
220 READ, ACCESS, hide), \
221 _PERF_HW_CACHE(optstr "-load-misses", name, type, \
223 _PERF_HW_CACHE(optstr "-stores", name, type, \
224 WRITE, ACCESS, hide), \
225 _PERF_HW_CACHE(optstr "-store-misses", name, type, \
226 WRITE, MISS, hide), \
227 _PERF_HW_CACHE(optstr "-prefetches", name, type, \
228 PREFETCH, ACCESS, hide), \
229 _PERF_HW_CACHE(optstr "-prefetch-misses", name, type, \
230 PREFETCH, MISS, hide)
233 const struct ctx_opts
{
235 enum context_type ctx_type
;
236 int hide_help
; /* Hide from --help */
248 { "pid", CONTEXT_PID
},
249 { "procname", CONTEXT_PROCNAME
},
250 { "prio", CONTEXT_PRIO
},
251 { "nice", CONTEXT_NICE
},
252 { "vpid", CONTEXT_VPID
},
253 { "tid", CONTEXT_TID
},
254 { "pthread_id", CONTEXT_PTHREAD_ID
},
255 { "vtid", CONTEXT_VTID
},
256 { "ppid", CONTEXT_PPID
},
257 { "vppid", CONTEXT_VPPID
},
258 { "hostname", CONTEXT_HOSTNAME
},
259 { "ip", CONTEXT_IP
},
260 { "interruptible", CONTEXT_INTERRUPTIBLE
},
261 { "preemptible", CONTEXT_PREEMPTIBLE
},
262 { "need_reschedule", CONTEXT_NEED_RESCHEDULE
},
263 { "migratable", CONTEXT_MIGRATABLE
},
264 { "callstack-kernel", CONTEXT_CALLSTACK_KERNEL
},
265 #if HAVE_MODULES_USERSPACE_CALLSTACK_CONTEXT
266 { "callstack-user", CONTEXT_CALLSTACK_USER
},
268 { "cgroup_ns", CONTEXT_CGROUP_NS
},
269 { "ipc_ns", CONTEXT_IPC_NS
},
270 { "mnt_ns", CONTEXT_MNT_NS
},
271 { "net_ns", CONTEXT_NET_NS
},
272 { "pid_ns", CONTEXT_PID_NS
},
273 { "user_ns", CONTEXT_USER_NS
},
274 { "uts_ns", CONTEXT_UTS_NS
},
275 { "uid", CONTEXT_UID
},
276 { "euid", CONTEXT_EUID
},
277 { "suid", CONTEXT_SUID
},
278 { "gid", CONTEXT_GID
},
279 { "egid", CONTEXT_EGID
},
280 { "sgid", CONTEXT_SGID
},
281 { "vuid", CONTEXT_VUID
},
282 { "veuid", CONTEXT_VEUID
},
283 { "vsuid", CONTEXT_VSUID
},
284 { "vgid", CONTEXT_VGID
},
285 { "vegid", CONTEXT_VEGID
},
286 { "vsgid", CONTEXT_VSGID
},
290 /* Perf per-CPU counters */
291 PERF_HW("perf:cpu:cpu-cycles", CPU_CYCLES
,
292 CONTEXT_PERF_CPU_COUNTER
, 0),
293 PERF_HW("perf:cpu:cycles", CPU_CYCLES
,
294 CONTEXT_PERF_CPU_COUNTER
, 0),
295 PERF_HW("perf:cpu:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND
,
296 CONTEXT_PERF_CPU_COUNTER
, 0),
297 PERF_HW("perf:cpu:idle-cycles-frontend", STALLED_CYCLES_FRONTEND
,
298 CONTEXT_PERF_CPU_COUNTER
, 0),
299 PERF_HW("perf:cpu:stalled-cycles-backend", STALLED_CYCLES_BACKEND
,
300 CONTEXT_PERF_CPU_COUNTER
, 0),
301 PERF_HW("perf:cpu:idle-cycles-backend", STALLED_CYCLES_BACKEND
,
302 CONTEXT_PERF_CPU_COUNTER
, 0),
303 PERF_HW("perf:cpu:instructions", INSTRUCTIONS
,
304 CONTEXT_PERF_CPU_COUNTER
, 0),
305 PERF_HW("perf:cpu:cache-references", CACHE_REFERENCES
,
306 CONTEXT_PERF_CPU_COUNTER
, 0),
307 PERF_HW("perf:cpu:cache-misses", CACHE_MISSES
,
308 CONTEXT_PERF_CPU_COUNTER
, 0),
309 PERF_HW("perf:cpu:branch-instructions", BRANCH_INSTRUCTIONS
,
310 CONTEXT_PERF_CPU_COUNTER
, 0),
311 PERF_HW("perf:cpu:branches", BRANCH_INSTRUCTIONS
,
312 CONTEXT_PERF_CPU_COUNTER
, 0),
313 PERF_HW("perf:cpu:branch-misses", BRANCH_MISSES
,
314 CONTEXT_PERF_CPU_COUNTER
, 0),
315 PERF_HW("perf:cpu:bus-cycles", BUS_CYCLES
,
316 CONTEXT_PERF_CPU_COUNTER
, 0),
318 PERF_HW_CACHE("perf:cpu:L1-dcache", L1D
,
319 CONTEXT_PERF_CPU_COUNTER
, 0),
320 PERF_HW_CACHE("perf:cpu:L1-icache", L1I
,
321 CONTEXT_PERF_CPU_COUNTER
, 0),
322 PERF_HW_CACHE("perf:cpu:LLC", LL
,
323 CONTEXT_PERF_CPU_COUNTER
, 0),
324 PERF_HW_CACHE("perf:cpu:dTLB", DTLB
,
325 CONTEXT_PERF_CPU_COUNTER
, 0),
326 _PERF_HW_CACHE("perf:cpu:iTLB-loads", ITLB
,
327 CONTEXT_PERF_CPU_COUNTER
, READ
, ACCESS
, 0),
328 _PERF_HW_CACHE("perf:cpu:iTLB-load-misses", ITLB
,
329 CONTEXT_PERF_CPU_COUNTER
, READ
, MISS
, 0),
330 _PERF_HW_CACHE("perf:cpu:branch-loads", BPU
,
331 CONTEXT_PERF_CPU_COUNTER
, READ
, ACCESS
, 0),
332 _PERF_HW_CACHE("perf:cpu:branch-load-misses", BPU
,
333 CONTEXT_PERF_CPU_COUNTER
, READ
, MISS
, 0),
335 PERF_SW("perf:cpu:cpu-clock", CPU_CLOCK
,
336 CONTEXT_PERF_CPU_COUNTER
, 0),
337 PERF_SW("perf:cpu:task-clock", TASK_CLOCK
,
338 CONTEXT_PERF_CPU_COUNTER
, 0),
339 PERF_SW("perf:cpu:page-fault", PAGE_FAULTS
,
340 CONTEXT_PERF_CPU_COUNTER
, 0),
341 PERF_SW("perf:cpu:faults", PAGE_FAULTS
,
342 CONTEXT_PERF_CPU_COUNTER
, 0),
343 PERF_SW("perf:cpu:major-faults", PAGE_FAULTS_MAJ
,
344 CONTEXT_PERF_CPU_COUNTER
, 0),
345 PERF_SW("perf:cpu:minor-faults", PAGE_FAULTS_MIN
,
346 CONTEXT_PERF_CPU_COUNTER
, 0),
347 PERF_SW("perf:cpu:context-switches", CONTEXT_SWITCHES
,
348 CONTEXT_PERF_CPU_COUNTER
, 0),
349 PERF_SW("perf:cpu:cs", CONTEXT_SWITCHES
,
350 CONTEXT_PERF_CPU_COUNTER
, 0),
351 PERF_SW("perf:cpu:cpu-migrations", CPU_MIGRATIONS
,
352 CONTEXT_PERF_CPU_COUNTER
, 0),
353 PERF_SW("perf:cpu:migrations", CPU_MIGRATIONS
,
354 CONTEXT_PERF_CPU_COUNTER
, 0),
355 PERF_SW("perf:cpu:alignment-faults", ALIGNMENT_FAULTS
,
356 CONTEXT_PERF_CPU_COUNTER
, 0),
357 PERF_SW("perf:cpu:emulation-faults", EMULATION_FAULTS
,
358 CONTEXT_PERF_CPU_COUNTER
, 0),
360 /* Perf per-thread counters */
361 PERF_HW("perf:thread:cpu-cycles", CPU_CYCLES
,
362 CONTEXT_PERF_THREAD_COUNTER
, 0),
363 PERF_HW("perf:thread:cycles", CPU_CYCLES
,
364 CONTEXT_PERF_THREAD_COUNTER
, 0),
365 PERF_HW("perf:thread:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND
,
366 CONTEXT_PERF_THREAD_COUNTER
, 0),
367 PERF_HW("perf:thread:idle-cycles-frontend", STALLED_CYCLES_FRONTEND
,
368 CONTEXT_PERF_THREAD_COUNTER
, 0),
369 PERF_HW("perf:thread:stalled-cycles-backend", STALLED_CYCLES_BACKEND
,
370 CONTEXT_PERF_THREAD_COUNTER
, 0),
371 PERF_HW("perf:thread:idle-cycles-backend", STALLED_CYCLES_BACKEND
,
372 CONTEXT_PERF_THREAD_COUNTER
, 0),
373 PERF_HW("perf:thread:instructions", INSTRUCTIONS
,
374 CONTEXT_PERF_THREAD_COUNTER
, 0),
375 PERF_HW("perf:thread:cache-references", CACHE_REFERENCES
,
376 CONTEXT_PERF_THREAD_COUNTER
, 0),
377 PERF_HW("perf:thread:cache-misses", CACHE_MISSES
,
378 CONTEXT_PERF_THREAD_COUNTER
, 0),
379 PERF_HW("perf:thread:branch-instructions", BRANCH_INSTRUCTIONS
,
380 CONTEXT_PERF_THREAD_COUNTER
, 0),
381 PERF_HW("perf:thread:branches", BRANCH_INSTRUCTIONS
,
382 CONTEXT_PERF_THREAD_COUNTER
, 0),
383 PERF_HW("perf:thread:branch-misses", BRANCH_MISSES
,
384 CONTEXT_PERF_THREAD_COUNTER
, 0),
385 PERF_HW("perf:thread:bus-cycles", BUS_CYCLES
,
386 CONTEXT_PERF_THREAD_COUNTER
, 0),
388 PERF_HW_CACHE("perf:thread:L1-dcache", L1D
,
389 CONTEXT_PERF_THREAD_COUNTER
, 0),
390 PERF_HW_CACHE("perf:thread:L1-icache", L1I
,
391 CONTEXT_PERF_THREAD_COUNTER
, 0),
392 PERF_HW_CACHE("perf:thread:LLC", LL
,
393 CONTEXT_PERF_THREAD_COUNTER
, 0),
394 PERF_HW_CACHE("perf:thread:dTLB", DTLB
,
395 CONTEXT_PERF_THREAD_COUNTER
, 0),
396 _PERF_HW_CACHE("perf:thread:iTLB-loads", ITLB
,
397 CONTEXT_PERF_THREAD_COUNTER
, READ
, ACCESS
, 0),
398 _PERF_HW_CACHE("perf:thread:iTLB-load-misses", ITLB
,
399 CONTEXT_PERF_THREAD_COUNTER
, READ
, MISS
, 0),
400 _PERF_HW_CACHE("perf:thread:branch-loads", BPU
,
401 CONTEXT_PERF_THREAD_COUNTER
, READ
, ACCESS
, 0),
402 _PERF_HW_CACHE("perf:thread:branch-load-misses", BPU
,
403 CONTEXT_PERF_THREAD_COUNTER
, READ
, MISS
, 0),
405 PERF_SW("perf:thread:cpu-clock", CPU_CLOCK
,
406 CONTEXT_PERF_THREAD_COUNTER
, 0),
407 PERF_SW("perf:thread:task-clock", TASK_CLOCK
,
408 CONTEXT_PERF_THREAD_COUNTER
, 0),
409 PERF_SW("perf:thread:page-fault", PAGE_FAULTS
,
410 CONTEXT_PERF_THREAD_COUNTER
, 0),
411 PERF_SW("perf:thread:faults", PAGE_FAULTS
,
412 CONTEXT_PERF_THREAD_COUNTER
, 0),
413 PERF_SW("perf:thread:major-faults", PAGE_FAULTS_MAJ
,
414 CONTEXT_PERF_THREAD_COUNTER
, 0),
415 PERF_SW("perf:thread:minor-faults", PAGE_FAULTS_MIN
,
416 CONTEXT_PERF_THREAD_COUNTER
, 0),
417 PERF_SW("perf:thread:context-switches", CONTEXT_SWITCHES
,
418 CONTEXT_PERF_THREAD_COUNTER
, 0),
419 PERF_SW("perf:thread:cs", CONTEXT_SWITCHES
,
420 CONTEXT_PERF_THREAD_COUNTER
, 0),
421 PERF_SW("perf:thread:cpu-migrations", CPU_MIGRATIONS
,
422 CONTEXT_PERF_THREAD_COUNTER
, 0),
423 PERF_SW("perf:thread:migrations", CPU_MIGRATIONS
,
424 CONTEXT_PERF_THREAD_COUNTER
, 0),
425 PERF_SW("perf:thread:alignment-faults", ALIGNMENT_FAULTS
,
426 CONTEXT_PERF_THREAD_COUNTER
, 0),
427 PERF_SW("perf:thread:emulation-faults", EMULATION_FAULTS
,
428 CONTEXT_PERF_THREAD_COUNTER
, 0),
431 * Perf per-CPU counters, backward compatibilty for names.
432 * Hidden from help listing.
434 PERF_HW("perf:cpu-cycles", CPU_CYCLES
,
435 CONTEXT_PERF_COUNTER
, 1),
436 PERF_HW("perf:cycles", CPU_CYCLES
,
437 CONTEXT_PERF_COUNTER
, 1),
438 PERF_HW("perf:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND
,
439 CONTEXT_PERF_COUNTER
, 1),
440 PERF_HW("perf:idle-cycles-frontend", STALLED_CYCLES_FRONTEND
,
441 CONTEXT_PERF_COUNTER
, 1),
442 PERF_HW("perf:stalled-cycles-backend", STALLED_CYCLES_BACKEND
,
443 CONTEXT_PERF_COUNTER
, 1),
444 PERF_HW("perf:idle-cycles-backend", STALLED_CYCLES_BACKEND
,
445 CONTEXT_PERF_COUNTER
, 1),
446 PERF_HW("perf:instructions", INSTRUCTIONS
,
447 CONTEXT_PERF_COUNTER
, 1),
448 PERF_HW("perf:cache-references", CACHE_REFERENCES
,
449 CONTEXT_PERF_COUNTER
, 1),
450 PERF_HW("perf:cache-misses", CACHE_MISSES
,
451 CONTEXT_PERF_COUNTER
, 1),
452 PERF_HW("perf:branch-instructions", BRANCH_INSTRUCTIONS
,
453 CONTEXT_PERF_COUNTER
, 1),
454 PERF_HW("perf:branches", BRANCH_INSTRUCTIONS
,
455 CONTEXT_PERF_COUNTER
, 1),
456 PERF_HW("perf:branch-misses", BRANCH_MISSES
,
457 CONTEXT_PERF_COUNTER
, 1),
458 PERF_HW("perf:bus-cycles", BUS_CYCLES
,
459 CONTEXT_PERF_COUNTER
, 1),
461 PERF_HW_CACHE("perf:L1-dcache", L1D
,
462 CONTEXT_PERF_COUNTER
, 1),
463 PERF_HW_CACHE("perf:L1-icache", L1I
,
464 CONTEXT_PERF_COUNTER
, 1),
465 PERF_HW_CACHE("perf:LLC", LL
,
466 CONTEXT_PERF_COUNTER
, 1),
467 PERF_HW_CACHE("perf:dTLB", DTLB
,
468 CONTEXT_PERF_COUNTER
, 1),
469 _PERF_HW_CACHE("perf:iTLB-loads", ITLB
,
470 CONTEXT_PERF_COUNTER
, READ
, ACCESS
, 1),
471 _PERF_HW_CACHE("perf:iTLB-load-misses", ITLB
,
472 CONTEXT_PERF_COUNTER
, READ
, MISS
, 1),
473 _PERF_HW_CACHE("perf:branch-loads", BPU
,
474 CONTEXT_PERF_COUNTER
, READ
, ACCESS
, 1),
475 _PERF_HW_CACHE("perf:branch-load-misses", BPU
,
476 CONTEXT_PERF_COUNTER
, READ
, MISS
, 1),
478 PERF_SW("perf:cpu-clock", CPU_CLOCK
,
479 CONTEXT_PERF_COUNTER
, 1),
480 PERF_SW("perf:task-clock", TASK_CLOCK
,
481 CONTEXT_PERF_COUNTER
, 1),
482 PERF_SW("perf:page-fault", PAGE_FAULTS
,
483 CONTEXT_PERF_COUNTER
, 1),
484 PERF_SW("perf:faults", PAGE_FAULTS
,
485 CONTEXT_PERF_COUNTER
, 1),
486 PERF_SW("perf:major-faults", PAGE_FAULTS_MAJ
,
487 CONTEXT_PERF_COUNTER
, 1),
488 PERF_SW("perf:minor-faults", PAGE_FAULTS_MIN
,
489 CONTEXT_PERF_COUNTER
, 1),
490 PERF_SW("perf:context-switches", CONTEXT_SWITCHES
,
491 CONTEXT_PERF_COUNTER
, 1),
492 PERF_SW("perf:cs", CONTEXT_SWITCHES
,
493 CONTEXT_PERF_COUNTER
, 1),
494 PERF_SW("perf:cpu-migrations", CPU_MIGRATIONS
,
495 CONTEXT_PERF_COUNTER
, 1),
496 PERF_SW("perf:migrations", CPU_MIGRATIONS
,
497 CONTEXT_PERF_COUNTER
, 1),
498 PERF_SW("perf:alignment-faults", ALIGNMENT_FAULTS
,
499 CONTEXT_PERF_COUNTER
, 1),
500 PERF_SW("perf:emulation-faults", EMULATION_FAULTS
,
501 CONTEXT_PERF_COUNTER
, 1),
503 { NULL
, -1 }, /* Closure */
507 #undef _PERF_HW_CACHE
512 * Context type for command line option parsing.
515 struct ctx_opts
*opt
;
516 struct cds_list_head list
;
520 * List of context type. Use to enable multiple context on a single command
523 struct ctx_type_list
{
524 struct cds_list_head head
;
526 .head
= CDS_LIST_HEAD_INIT(ctx_type_list
.head
),
532 * Find context numerical value from string.
534 * Return -1 if not found.
536 static int find_ctx_type_idx(const char *opt
)
540 while (ctx_opts
[i
].symbol
!= NULL
) {
541 if (strcmp(opt
, ctx_opts
[i
].symbol
) == 0) {
554 enum lttng_domain_type
get_domain(void)
557 return LTTNG_DOMAIN_KERNEL
;
558 } else if (opt_userspace
) {
559 return LTTNG_DOMAIN_UST
;
560 } else if (opt_jul
) {
561 return LTTNG_DOMAIN_JUL
;
562 } else if (opt_log4j
) {
563 return LTTNG_DOMAIN_LOG4J
;
580 ret
= fileno(stdout
);
582 PERROR("Unable to retrieve fileno of stdout");
587 writer
= mi_lttng_writer_create(ret
, lttng_opt_mi
);
593 /* Open command element */
594 ret
= mi_lttng_writer_command_open(writer
,
595 mi_lttng_element_command_add_context
);
601 /* Open output element */
602 ret
= mi_lttng_writer_open_element(writer
,
603 mi_lttng_element_command_output
);
613 int mi_close(enum cmd_error_code success
)
622 /* Close output element */
623 ret
= mi_lttng_writer_close_element(writer
);
630 ret
= mi_lttng_writer_write_element_bool(writer
,
631 mi_lttng_element_command_success
, !success
);
637 /* Command element close */
638 ret
= mi_lttng_writer_command_close(writer
);
648 void populate_context(struct lttng_event_context
*context
,
649 const struct ctx_opts
*opt
)
653 context
->ctx
= (enum lttng_event_context_type
) opt
->ctx_type
;
654 switch (context
->ctx
) {
655 case LTTNG_EVENT_CONTEXT_PERF_COUNTER
:
656 case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER
:
657 case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER
:
658 context
->u
.perf_counter
.type
= opt
->u
.perf
.type
;
659 context
->u
.perf_counter
.config
= opt
->u
.perf
.config
;
660 strncpy(context
->u
.perf_counter
.name
, opt
->symbol
,
661 LTTNG_SYMBOL_NAME_LEN
);
662 context
->u
.perf_counter
.name
[LTTNG_SYMBOL_NAME_LEN
- 1] = '\0';
663 /* Replace : and - by _ */
664 while ((ptr
= strchr(context
->u
.perf_counter
.name
, '-')) != NULL
) {
667 while ((ptr
= strchr(context
->u
.perf_counter
.name
, ':')) != NULL
) {
671 case LTTNG_EVENT_CONTEXT_APP_CONTEXT
:
672 context
->u
.app_ctx
.provider_name
=
673 opt
->u
.app_ctx
.provider_name
;
674 context
->u
.app_ctx
.ctx_name
=
675 opt
->u
.app_ctx
.ctx_name
;
683 * Pretty print context type.
686 int print_ctx_type(void)
692 struct lttng_event_context context
;
694 memset(&context
, 0, sizeof(context
));
703 /* Open a contexts element */
704 ret
= mi_lttng_writer_open_element(writer
, config_element_contexts
);
711 while (ctx_opts
[i
].symbol
!= NULL
) {
712 if (!ctx_opts
[i
].hide_help
) {
714 populate_context(&context
, &ctx_opts
[i
]);
715 ret
= mi_lttng_context(writer
, &context
, 1);
721 ret
= mi_lttng_writer_write_element_string(
723 mi_lttng_element_context_symbol
,
730 ret
= mi_lttng_writer_close_element(writer
);
736 fprintf(ofp
, "%s\n", ctx_opts
[i
].symbol
);
743 /* Close contexts element */
744 ret
= mi_lttng_writer_close_element(writer
);
759 * Add context to channel or event.
761 static int add_context(char *session_name
)
763 int ret
= CMD_SUCCESS
, warn
= 0, success
= 0;
764 struct lttng_event_context context
;
765 struct lttng_domain dom
;
766 struct ctx_type
*type
;
768 memset(&context
, 0, sizeof(context
));
769 memset(&dom
, 0, sizeof(dom
));
771 dom
.type
= get_domain();
772 handle
= lttng_create_handle(session_name
, &dom
);
773 if (handle
== NULL
) {
779 /* Open a contexts element */
780 ret
= mi_lttng_writer_open_element(writer
, config_element_contexts
);
786 /* Iterate over all the context types given */
787 cds_list_for_each_entry(type
, &ctx_type_list
.head
, list
) {
788 DBG("Adding context...");
790 populate_context(&context
, type
->opt
);
793 /* We leave context open the update the success of the command */
794 ret
= mi_lttng_context(writer
, &context
, 1);
800 ret
= mi_lttng_writer_write_element_string(writer
,
801 mi_lttng_element_context_symbol
,
809 ret
= lttng_add_context(handle
, &context
, NULL
, opt_channel_name
);
811 ERR("%s: %s", type
->opt
->symbol
, lttng_strerror(ret
));
815 if (opt_channel_name
) {
816 MSG("%s context %s added to channel %s",
817 get_domain_str(dom
.type
), type
->opt
->symbol
,
820 MSG("%s context %s added to all channels",
821 get_domain_str(dom
.type
), type
->opt
->symbol
);
827 /* Is the single operation a success ? */
828 ret
= mi_lttng_writer_write_element_bool(writer
,
829 mi_lttng_element_success
, success
);
835 /* Close the context element */
836 ret
= mi_lttng_writer_close_element(writer
);
845 /* Close contexts element */
846 ret
= mi_lttng_writer_close_element(writer
);
855 lttng_destroy_handle(handle
);
858 * This means that at least one add_context failed and tells the user to
859 * look on stderr for error(s).
868 void destroy_ctx_type(struct ctx_type
*type
)
874 free(type
->opt
->symbol
);
881 struct ctx_type
*create_ctx_type(void)
883 struct ctx_type
*type
= zmalloc(sizeof(*type
));
886 PERROR("malloc ctx_type");
890 type
->opt
= zmalloc(sizeof(*type
->opt
));
892 PERROR("malloc ctx_type options");
893 destroy_ctx_type(type
);
902 int find_ctx_type_perf_raw(const char *ctx
, struct ctx_type
*type
)
906 char *tmp_list
, *cur_list
;
908 cur_list
= tmp_list
= strdup(ctx
);
910 PERROR("strdup temp list");
915 /* Looking for "perf:[cpu|thread]:raw:<mask>:<name>". */
919 next
= strtok(cur_list
, ":");
926 if (strncmp(next
, "perf", 4) != 0) {
932 if (strncmp(next
, "cpu", 3) == 0) {
933 type
->opt
->ctx_type
= CONTEXT_PERF_CPU_COUNTER
;
934 } else if (strncmp(next
, "thread", 4) == 0) {
935 type
->opt
->ctx_type
= CONTEXT_PERF_THREAD_COUNTER
;
942 if (strncmp(next
, "raw", 3) != 0) {
951 if (strlen(next
) < 2 || next
[0] != 'r') {
952 ERR("Wrong perf raw mask format: expected rNNN");
957 type
->opt
->u
.perf
.config
= strtoll(next
+ 1, &endptr
, 16);
958 if (errno
!= 0 || !endptr
|| *endptr
) {
959 ERR("Wrong perf raw mask format: expected rNNN");
969 ERR("Too many ':' in perf raw format");
977 ERR("Invalid perf counter specifier, expected a specifier of "
978 "the form perf:cpu:raw:rNNN:<name> or "
979 "perf:thread:raw:rNNN:<name>");
993 struct ctx_type
*get_context_type(const char *ctx
)
996 struct ctx_type
*type
= NULL
;
997 const char app_ctx_prefix
[] = "$app.";
998 char *provider_name
= NULL
, *ctx_name
= NULL
;
999 size_t i
, len
, colon_pos
= 0, provider_name_len
, ctx_name_len
;
1005 type
= create_ctx_type();
1010 /* Check if ctx matches a known static context. */
1011 opt_index
= find_ctx_type_idx(ctx
);
1012 if (opt_index
>= 0) {
1013 *type
->opt
= ctx_opts
[opt_index
];
1014 type
->opt
->symbol
= strdup(ctx_opts
[opt_index
].symbol
);
1018 /* Check if ctx is a raw perf context. */
1019 ret
= find_ctx_type_perf_raw(ctx
, type
);
1021 type
->opt
->u
.perf
.type
= PERF_TYPE_RAW
;
1022 type
->opt
->symbol
= strdup(ctx
);
1023 if (!type
->opt
->symbol
) {
1024 PERROR("Copy perf field name");
1031 * No match found against static contexts; check if it is an app
1035 if (len
<= sizeof(app_ctx_prefix
) - 1) {
1039 /* String starts with $app. */
1040 if (strncmp(ctx
, app_ctx_prefix
, sizeof(app_ctx_prefix
) - 1)) {
1044 /* Validate that the ':' separator is present. */
1045 for (i
= sizeof(app_ctx_prefix
); i
< len
; i
++) {
1046 const char c
= ctx
[i
];
1055 * No colon found or no ctx name ("$app.provider:") or no provider name
1056 * given ("$app.:..."), which is invalid.
1058 if (!colon_pos
|| colon_pos
== len
||
1059 colon_pos
== sizeof(app_ctx_prefix
)) {
1060 ERR("Invalid application context provided: no provider or context name provided.");
1064 provider_name_len
= colon_pos
- sizeof(app_ctx_prefix
) + 2;
1065 provider_name
= zmalloc(provider_name_len
);
1066 if (!provider_name
) {
1067 PERROR("malloc provider_name");
1070 strncpy(provider_name
, ctx
+ sizeof(app_ctx_prefix
) - 1,
1071 provider_name_len
- 1);
1072 type
->opt
->u
.app_ctx
.provider_name
= provider_name
;
1074 ctx_name_len
= len
- colon_pos
;
1075 ctx_name
= zmalloc(ctx_name_len
);
1077 PERROR("malloc ctx_name");
1080 strncpy(ctx_name
, ctx
+ colon_pos
+ 1, ctx_name_len
- 1);
1081 type
->opt
->u
.app_ctx
.ctx_name
= ctx_name
;
1082 type
->opt
->ctx_type
= CONTEXT_APP_CONTEXT
;
1083 type
->opt
->symbol
= strdup(ctx
);
1087 free(provider_name
);
1089 destroy_ctx_type(type
);
1094 * Add context to channel or event.
1096 int cmd_add_context(int argc
, const char **argv
)
1098 int opt
, ret
= CMD_SUCCESS
, command_ret
= CMD_SUCCESS
;
1099 static poptContext pc
;
1100 struct ctx_type
*type
, *tmptype
;
1101 char *session_name
= NULL
;
1102 const char *leftover
= NULL
;
1109 pc
= poptGetContext(NULL
, argc
, argv
, long_options
, 0);
1110 poptReadDefaultConfig(pc
, 0);
1112 while ((opt
= poptGetNextOpt(pc
)) != -1) {
1118 ret
= print_ctx_type();
1122 type
= get_context_type(opt_type
);
1124 ERR("Unknown context type %s", opt_type
);
1128 cds_list_add_tail(&type
->list
, &ctx_type_list
.head
);
1140 case OPT_LIST_OPTIONS
:
1141 list_cmd_options(stdout
, long_options
);
1144 ret
= CMD_UNDEFINED
;
1149 leftover
= poptGetArg(pc
);
1151 ERR("Unknown argument: %s", leftover
);
1156 ret
= print_missing_or_multiple_domains(opt_kernel
+ opt_userspace
+
1157 opt_jul
+ opt_log4j
);
1164 ERR("Missing mandatory -t TYPE");
1169 if (!opt_session_name
) {
1170 session_name
= get_session_name();
1171 if (session_name
== NULL
) {
1176 session_name
= opt_session_name
;
1184 command_ret
= add_context(session_name
);
1185 ret
= mi_close(command_ret
);
1191 if (!opt_session_name
) {
1196 if (writer
&& mi_lttng_writer_destroy(writer
)) {
1197 /* Preserve original error code */
1198 ret
= ret
? ret
: LTTNG_ERR_MI_IO_FAIL
;
1201 /* Cleanup allocated memory */
1202 cds_list_for_each_entry_safe(type
, tmptype
, &ctx_type_list
.head
, list
) {
1203 destroy_ctx_type(type
);
1206 /* Overwrite ret if an error occurred during add_context() */
1207 ret
= command_ret
? command_ret
: ret
;
1209 poptFreeContext(pc
);