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91007045 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
f8a95309 ACM |
2 | /* |
3 | * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> | |
4 | * | |
5 | * Parts came from builtin-{top,stat,record}.c, see those files for further | |
6 | * copyright notes. | |
f8a95309 ACM |
7 | */ |
8 | ||
936be503 | 9 | #include <byteswap.h> |
a43783ae | 10 | #include <errno.h> |
fd20e811 | 11 | #include <inttypes.h> |
0f6a3015 | 12 | #include <linux/bitops.h> |
6828d692 | 13 | #include <api/io.h> |
2157f6ee | 14 | #include <api/fs/fs.h> |
4605eab3 | 15 | #include <api/fs/tracing_path.h> |
4e319027 RR |
16 | #include <linux/hw_breakpoint.h> |
17 | #include <linux/perf_event.h> | |
0353631a | 18 | #include <linux/compiler.h> |
8dd2a131 | 19 | #include <linux/err.h> |
7f7c536f | 20 | #include <linux/zalloc.h> |
86a5e0c2 | 21 | #include <sys/ioctl.h> |
bec19672 | 22 | #include <sys/resource.h> |
2157f6ee ACM |
23 | #include <sys/types.h> |
24 | #include <dirent.h> | |
f2a39fe8 | 25 | #include <stdlib.h> |
b04c597a | 26 | #include <perf/evsel.h> |
4e319027 | 27 | #include "asm/bug.h" |
fa853c4b | 28 | #include "bpf_counter.h" |
8f651eae | 29 | #include "callchain.h" |
f14d5707 | 30 | #include "cgroup.h" |
ddee688a | 31 | #include "counts.h" |
5ab8c689 | 32 | #include "event.h" |
69aad6f1 | 33 | #include "evsel.h" |
6828d692 | 34 | #include "time-utils.h" |
9db0e363 | 35 | #include "util/env.h" |
95be9d19 | 36 | #include "util/evsel_config.h" |
ca125277 | 37 | #include "util/evsel_fprintf.h" |
70082dd9 | 38 | #include "evlist.h" |
87ffb6c6 | 39 | #include <perf/cpumap.h> |
fd78260b | 40 | #include "thread_map.h" |
12864b31 | 41 | #include "target.h" |
26d33022 | 42 | #include "perf_regs.h" |
aeb00b1a | 43 | #include "record.h" |
e3e1a54f | 44 | #include "debug.h" |
97978b3e | 45 | #include "trace-event.h" |
a9a3a4d9 | 46 | #include "stat.h" |
6a9fa4e3 | 47 | #include "string2.h" |
f9d8adb3 | 48 | #include "memswap.h" |
2da39f1c | 49 | #include "util.h" |
bdf45725 | 50 | #include "util/hashmap.h" |
49c692b7 | 51 | #include "off_cpu.h" |
5d9fb666 | 52 | #include "pmu.h" |
1eaf496e | 53 | #include "pmus.h" |
e093a222 | 54 | #include "rlimit.h" |
91854f9a | 55 | #include "../perf-sys.h" |
ac12f676 | 56 | #include "util/parse-branch-options.h" |
d180aa56 | 57 | #include "util/bpf-filter.h" |
eae7044b | 58 | #include "util/hist.h" |
76466024 | 59 | #include <internal/xyarray.h> |
fb71c86c | 60 | #include <internal/lib.h> |
fd3f518f | 61 | #include <internal/threadmap.h> |
69aad6f1 | 62 | |
3052ba56 | 63 | #include <linux/ctype.h> |
3d689ed6 | 64 | |
378ef0f5 IR |
65 | #ifdef HAVE_LIBTRACEEVENT |
66 | #include <traceevent/event-parse.h> | |
67 | #endif | |
68 | ||
9a831b3a | 69 | struct perf_missing_features perf_missing_features; |
594ac61a | 70 | |
814c8c38 PZ |
71 | static clockid_t clockid; |
72 | ||
79932d16 IR |
73 | static const char *const perf_tool_event__tool_names[PERF_TOOL_MAX] = { |
74 | NULL, | |
75 | "duration_time", | |
76 | "user_time", | |
77 | "system_time", | |
78 | }; | |
79 | ||
80 | const char *perf_tool_event__to_str(enum perf_tool_event ev) | |
81 | { | |
82 | if (ev > PERF_TOOL_NONE && ev < PERF_TOOL_MAX) | |
83 | return perf_tool_event__tool_names[ev]; | |
84 | ||
85 | return NULL; | |
86 | } | |
87 | ||
88 | enum perf_tool_event perf_tool_event__from_str(const char *str) | |
89 | { | |
90 | int i; | |
91 | ||
92 | perf_tool_event__for_each_event(i) { | |
93 | if (!strcmp(str, perf_tool_event__tool_names[i])) | |
94 | return i; | |
95 | } | |
96 | return PERF_TOOL_NONE; | |
97 | } | |
98 | ||
99 | ||
4c703828 | 100 | static int evsel__no_extra_init(struct evsel *evsel __maybe_unused) |
ce8ccff5 ACM |
101 | { |
102 | return 0; | |
103 | } | |
104 | ||
10213e2f JO |
105 | void __weak test_attr__ready(void) { } |
106 | ||
4c703828 | 107 | static void evsel__no_extra_fini(struct evsel *evsel __maybe_unused) |
ce8ccff5 ACM |
108 | { |
109 | } | |
110 | ||
111 | static struct { | |
112 | size_t size; | |
32dcd021 JO |
113 | int (*init)(struct evsel *evsel); |
114 | void (*fini)(struct evsel *evsel); | |
ce8ccff5 | 115 | } perf_evsel__object = { |
32dcd021 | 116 | .size = sizeof(struct evsel), |
4c703828 ACM |
117 | .init = evsel__no_extra_init, |
118 | .fini = evsel__no_extra_fini, | |
ce8ccff5 ACM |
119 | }; |
120 | ||
4c703828 ACM |
121 | int evsel__object_config(size_t object_size, int (*init)(struct evsel *evsel), |
122 | void (*fini)(struct evsel *evsel)) | |
ce8ccff5 ACM |
123 | { |
124 | ||
125 | if (object_size == 0) | |
126 | goto set_methods; | |
127 | ||
128 | if (perf_evsel__object.size > object_size) | |
129 | return -EINVAL; | |
130 | ||
131 | perf_evsel__object.size = object_size; | |
132 | ||
133 | set_methods: | |
134 | if (init != NULL) | |
135 | perf_evsel__object.init = init; | |
136 | ||
137 | if (fini != NULL) | |
138 | perf_evsel__object.fini = fini; | |
139 | ||
140 | return 0; | |
141 | } | |
142 | ||
9dfcb759 | 143 | #define FD(e, x, y) (*(int *)xyarray__entry(e->core.fd, x, y)) |
c52b12ed | 144 | |
2aaefde4 | 145 | int __evsel__sample_size(u64 sample_type) |
c2a70653 ACM |
146 | { |
147 | u64 mask = sample_type & PERF_SAMPLE_MASK; | |
148 | int size = 0; | |
149 | int i; | |
150 | ||
151 | for (i = 0; i < 64; i++) { | |
152 | if (mask & (1ULL << i)) | |
153 | size++; | |
154 | } | |
155 | ||
156 | size *= sizeof(u64); | |
157 | ||
158 | return size; | |
159 | } | |
160 | ||
75562573 AH |
161 | /** |
162 | * __perf_evsel__calc_id_pos - calculate id_pos. | |
163 | * @sample_type: sample type | |
164 | * | |
165 | * This function returns the position of the event id (PERF_SAMPLE_ID or | |
166 | * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of struct | |
69d81f09 | 167 | * perf_record_sample. |
75562573 AH |
168 | */ |
169 | static int __perf_evsel__calc_id_pos(u64 sample_type) | |
170 | { | |
171 | int idx = 0; | |
172 | ||
173 | if (sample_type & PERF_SAMPLE_IDENTIFIER) | |
174 | return 0; | |
175 | ||
176 | if (!(sample_type & PERF_SAMPLE_ID)) | |
177 | return -1; | |
178 | ||
179 | if (sample_type & PERF_SAMPLE_IP) | |
180 | idx += 1; | |
181 | ||
182 | if (sample_type & PERF_SAMPLE_TID) | |
183 | idx += 1; | |
184 | ||
185 | if (sample_type & PERF_SAMPLE_TIME) | |
186 | idx += 1; | |
187 | ||
188 | if (sample_type & PERF_SAMPLE_ADDR) | |
189 | idx += 1; | |
190 | ||
191 | return idx; | |
192 | } | |
193 | ||
194 | /** | |
195 | * __perf_evsel__calc_is_pos - calculate is_pos. | |
196 | * @sample_type: sample type | |
197 | * | |
198 | * This function returns the position (counting backwards) of the event id | |
199 | * (PERF_SAMPLE_ID or PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if | |
200 | * sample_id_all is used there is an id sample appended to non-sample events. | |
201 | */ | |
202 | static int __perf_evsel__calc_is_pos(u64 sample_type) | |
203 | { | |
204 | int idx = 1; | |
205 | ||
206 | if (sample_type & PERF_SAMPLE_IDENTIFIER) | |
207 | return 1; | |
208 | ||
209 | if (!(sample_type & PERF_SAMPLE_ID)) | |
210 | return -1; | |
211 | ||
212 | if (sample_type & PERF_SAMPLE_CPU) | |
213 | idx += 1; | |
214 | ||
215 | if (sample_type & PERF_SAMPLE_STREAM_ID) | |
216 | idx += 1; | |
217 | ||
218 | return idx; | |
219 | } | |
220 | ||
4b5e87b7 | 221 | void evsel__calc_id_pos(struct evsel *evsel) |
75562573 | 222 | { |
1fc632ce JO |
223 | evsel->id_pos = __perf_evsel__calc_id_pos(evsel->core.attr.sample_type); |
224 | evsel->is_pos = __perf_evsel__calc_is_pos(evsel->core.attr.sample_type); | |
75562573 AH |
225 | } |
226 | ||
862b2f8f | 227 | void __evsel__set_sample_bit(struct evsel *evsel, |
7be5ebe8 ACM |
228 | enum perf_event_sample_format bit) |
229 | { | |
1fc632ce JO |
230 | if (!(evsel->core.attr.sample_type & bit)) { |
231 | evsel->core.attr.sample_type |= bit; | |
7be5ebe8 | 232 | evsel->sample_size += sizeof(u64); |
4b5e87b7 | 233 | evsel__calc_id_pos(evsel); |
7be5ebe8 ACM |
234 | } |
235 | } | |
236 | ||
862b2f8f | 237 | void __evsel__reset_sample_bit(struct evsel *evsel, |
7be5ebe8 ACM |
238 | enum perf_event_sample_format bit) |
239 | { | |
1fc632ce JO |
240 | if (evsel->core.attr.sample_type & bit) { |
241 | evsel->core.attr.sample_type &= ~bit; | |
7be5ebe8 | 242 | evsel->sample_size -= sizeof(u64); |
4b5e87b7 | 243 | evsel__calc_id_pos(evsel); |
7be5ebe8 ACM |
244 | } |
245 | } | |
246 | ||
862b2f8f | 247 | void evsel__set_sample_id(struct evsel *evsel, |
75562573 | 248 | bool can_sample_identifier) |
7a5a5ca5 | 249 | { |
75562573 | 250 | if (can_sample_identifier) { |
862b2f8f ACM |
251 | evsel__reset_sample_bit(evsel, ID); |
252 | evsel__set_sample_bit(evsel, IDENTIFIER); | |
75562573 | 253 | } else { |
862b2f8f | 254 | evsel__set_sample_bit(evsel, ID); |
75562573 | 255 | } |
1fc632ce | 256 | evsel->core.attr.read_format |= PERF_FORMAT_ID; |
7a5a5ca5 ACM |
257 | } |
258 | ||
5496bc0c | 259 | /** |
c754c382 | 260 | * evsel__is_function_event - Return whether given evsel is a function |
5496bc0c ACM |
261 | * trace event |
262 | * | |
263 | * @evsel - evsel selector to be tested | |
264 | * | |
265 | * Return %true if event is function trace event | |
266 | */ | |
c754c382 | 267 | bool evsel__is_function_event(struct evsel *evsel) |
5496bc0c ACM |
268 | { |
269 | #define FUNCTION_EVENT "ftrace:function" | |
270 | ||
271 | return evsel->name && | |
272 | !strncmp(FUNCTION_EVENT, evsel->name, sizeof(FUNCTION_EVENT)); | |
273 | ||
274 | #undef FUNCTION_EVENT | |
275 | } | |
276 | ||
b4b62ee6 JO |
277 | void evsel__init(struct evsel *evsel, |
278 | struct perf_event_attr *attr, int idx) | |
ef1d1af2 | 279 | { |
38fe0e01 | 280 | perf_evsel__init(&evsel->core, attr, idx); |
60b0896c | 281 | evsel->tracking = !idx; |
b194c9cd | 282 | evsel->unit = strdup(""); |
410136f5 | 283 | evsel->scale = 1.0; |
2fda5ada | 284 | evsel->max_events = ULONG_MAX; |
d49e4695 | 285 | evsel->evlist = NULL; |
af4a0991 | 286 | evsel->bpf_obj = NULL; |
1f45b1d4 | 287 | evsel->bpf_fd = -1; |
930a2e29 | 288 | INIT_LIST_HEAD(&evsel->config_terms); |
fa853c4b | 289 | INIT_LIST_HEAD(&evsel->bpf_counter_list); |
c041d33b | 290 | INIT_LIST_HEAD(&evsel->bpf_filters); |
ce8ccff5 | 291 | perf_evsel__object.init(evsel); |
2aaefde4 | 292 | evsel->sample_size = __evsel__sample_size(attr->sample_type); |
4b5e87b7 | 293 | evsel__calc_id_pos(evsel); |
15bfd2cc | 294 | evsel->cmdline_group_boundary = false; |
37932c18 | 295 | evsel->metric_events = NULL; |
f0aef475 | 296 | evsel->per_pkg_mask = NULL; |
37932c18 | 297 | evsel->collect_stat = false; |
8c5421c0 | 298 | evsel->pmu_name = NULL; |
a90cc5a9 | 299 | evsel->group_pmu_name = NULL; |
1b114824 | 300 | evsel->skippable = false; |
ef1d1af2 ACM |
301 | } |
302 | ||
8f6725a2 | 303 | struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx) |
69aad6f1 | 304 | { |
32dcd021 | 305 | struct evsel *evsel = zalloc(perf_evsel__object.size); |
69aad6f1 | 306 | |
fd8d2702 HT |
307 | if (!evsel) |
308 | return NULL; | |
b4b62ee6 | 309 | evsel__init(evsel, attr, idx); |
69aad6f1 | 310 | |
303ead45 NK |
311 | if (evsel__is_bpf_output(evsel) && !attr->sample_type) { |
312 | evsel->core.attr.sample_type = (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | | |
d37ba880 | 313 | PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD), |
1fc632ce | 314 | evsel->core.attr.sample_period = 1; |
03e0a7df WN |
315 | } |
316 | ||
c754c382 | 317 | if (evsel__is_clock(evsel)) { |
b194c9cd IR |
318 | free((char *)evsel->unit); |
319 | evsel->unit = strdup("msec"); | |
0aa802a7 JO |
320 | evsel->scale = 1e-6; |
321 | } | |
322 | ||
69aad6f1 ACM |
323 | return evsel; |
324 | } | |
325 | ||
a7d212fc | 326 | int copy_config_terms(struct list_head *dst, struct list_head *src) |
7fedd9b8 NK |
327 | { |
328 | struct evsel_config_term *pos, *tmp; | |
329 | ||
a7d212fc | 330 | list_for_each_entry(pos, src, list) { |
7fedd9b8 NK |
331 | tmp = malloc(sizeof(*tmp)); |
332 | if (tmp == NULL) | |
333 | return -ENOMEM; | |
334 | ||
335 | *tmp = *pos; | |
336 | if (tmp->free_str) { | |
337 | tmp->val.str = strdup(pos->val.str); | |
338 | if (tmp->val.str == NULL) { | |
339 | free(tmp); | |
340 | return -ENOMEM; | |
341 | } | |
342 | } | |
a7d212fc | 343 | list_add_tail(&tmp->list, dst); |
7fedd9b8 NK |
344 | } |
345 | return 0; | |
346 | } | |
347 | ||
a7d212fc AH |
348 | static int evsel__copy_config_terms(struct evsel *dst, struct evsel *src) |
349 | { | |
350 | return copy_config_terms(&dst->config_terms, &src->config_terms); | |
351 | } | |
352 | ||
7fedd9b8 NK |
353 | /** |
354 | * evsel__clone - create a new evsel copied from @orig | |
355 | * @orig: original evsel | |
356 | * | |
357 | * The assumption is that @orig is not configured nor opened yet. | |
358 | * So we only care about the attributes that can be set while it's parsed. | |
359 | */ | |
360 | struct evsel *evsel__clone(struct evsel *orig) | |
361 | { | |
362 | struct evsel *evsel; | |
363 | ||
364 | BUG_ON(orig->core.fd); | |
365 | BUG_ON(orig->counts); | |
366 | BUG_ON(orig->priv); | |
367 | BUG_ON(orig->per_pkg_mask); | |
368 | ||
369 | /* cannot handle BPF objects for now */ | |
370 | if (orig->bpf_obj) | |
371 | return NULL; | |
372 | ||
373 | evsel = evsel__new(&orig->core.attr); | |
374 | if (evsel == NULL) | |
375 | return NULL; | |
376 | ||
377 | evsel->core.cpus = perf_cpu_map__get(orig->core.cpus); | |
378 | evsel->core.own_cpus = perf_cpu_map__get(orig->core.own_cpus); | |
379 | evsel->core.threads = perf_thread_map__get(orig->core.threads); | |
380 | evsel->core.nr_members = orig->core.nr_members; | |
381 | evsel->core.system_wide = orig->core.system_wide; | |
d3345fec | 382 | evsel->core.requires_cpu = orig->core.requires_cpu; |
1578e63d | 383 | evsel->core.is_pmu_core = orig->core.is_pmu_core; |
7fedd9b8 NK |
384 | |
385 | if (orig->name) { | |
386 | evsel->name = strdup(orig->name); | |
387 | if (evsel->name == NULL) | |
388 | goto out_err; | |
389 | } | |
390 | if (orig->group_name) { | |
391 | evsel->group_name = strdup(orig->group_name); | |
392 | if (evsel->group_name == NULL) | |
393 | goto out_err; | |
394 | } | |
395 | if (orig->pmu_name) { | |
396 | evsel->pmu_name = strdup(orig->pmu_name); | |
397 | if (evsel->pmu_name == NULL) | |
398 | goto out_err; | |
399 | } | |
a90cc5a9 IR |
400 | if (orig->group_pmu_name) { |
401 | evsel->group_pmu_name = strdup(orig->group_pmu_name); | |
402 | if (evsel->group_pmu_name == NULL) | |
403 | goto out_err; | |
404 | } | |
7fedd9b8 NK |
405 | if (orig->filter) { |
406 | evsel->filter = strdup(orig->filter); | |
407 | if (evsel->filter == NULL) | |
408 | goto out_err; | |
409 | } | |
2b62b3a6 IR |
410 | if (orig->metric_id) { |
411 | evsel->metric_id = strdup(orig->metric_id); | |
412 | if (evsel->metric_id == NULL) | |
413 | goto out_err; | |
414 | } | |
7fedd9b8 | 415 | evsel->cgrp = cgroup__get(orig->cgrp); |
378ef0f5 | 416 | #ifdef HAVE_LIBTRACEEVENT |
7fedd9b8 | 417 | evsel->tp_format = orig->tp_format; |
378ef0f5 | 418 | #endif |
7fedd9b8 | 419 | evsel->handler = orig->handler; |
fba7c866 | 420 | evsel->core.leader = orig->core.leader; |
7fedd9b8 NK |
421 | |
422 | evsel->max_events = orig->max_events; | |
423 | evsel->tool_event = orig->tool_event; | |
b194c9cd IR |
424 | free((char *)evsel->unit); |
425 | evsel->unit = strdup(orig->unit); | |
426 | if (evsel->unit == NULL) | |
427 | goto out_err; | |
428 | ||
7fedd9b8 NK |
429 | evsel->scale = orig->scale; |
430 | evsel->snapshot = orig->snapshot; | |
431 | evsel->per_pkg = orig->per_pkg; | |
432 | evsel->percore = orig->percore; | |
433 | evsel->precise_max = orig->precise_max; | |
7fedd9b8 NK |
434 | evsel->is_libpfm_event = orig->is_libpfm_event; |
435 | ||
436 | evsel->exclude_GH = orig->exclude_GH; | |
437 | evsel->sample_read = orig->sample_read; | |
438 | evsel->auto_merge_stats = orig->auto_merge_stats; | |
439 | evsel->collect_stat = orig->collect_stat; | |
440 | evsel->weak_group = orig->weak_group; | |
2dc065ea | 441 | evsel->use_config_name = orig->use_config_name; |
f7400262 | 442 | evsel->pmu = orig->pmu; |
7fedd9b8 NK |
443 | |
444 | if (evsel__copy_config_terms(evsel, orig) < 0) | |
445 | goto out_err; | |
446 | ||
447 | return evsel; | |
448 | ||
449 | out_err: | |
450 | evsel__delete(evsel); | |
451 | return NULL; | |
452 | } | |
453 | ||
8dd2a131 JO |
454 | /* |
455 | * Returns pointer with encoded error via <linux/err.h> interface. | |
456 | */ | |
378ef0f5 | 457 | #ifdef HAVE_LIBTRACEEVENT |
a2a6604e | 458 | struct evsel *evsel__newtp_idx(const char *sys, const char *name, int idx, bool format) |
efd2b924 | 459 | { |
32dcd021 | 460 | struct evsel *evsel = zalloc(perf_evsel__object.size); |
8dd2a131 | 461 | int err = -ENOMEM; |
efd2b924 | 462 | |
8dd2a131 JO |
463 | if (evsel == NULL) { |
464 | goto out_err; | |
465 | } else { | |
efd2b924 | 466 | struct perf_event_attr attr = { |
0b80f8b3 ACM |
467 | .type = PERF_TYPE_TRACEPOINT, |
468 | .sample_type = (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | | |
469 | PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD), | |
efd2b924 ACM |
470 | }; |
471 | ||
e48ffe2b ACM |
472 | if (asprintf(&evsel->name, "%s:%s", sys, name) < 0) |
473 | goto out_free; | |
474 | ||
a2a6604e DM |
475 | event_attr_init(&attr); |
476 | ||
477 | if (format) { | |
478 | evsel->tp_format = trace_event__tp_format(sys, name); | |
479 | if (IS_ERR(evsel->tp_format)) { | |
480 | err = PTR_ERR(evsel->tp_format); | |
481 | goto out_free; | |
482 | } | |
483 | attr.config = evsel->tp_format->id; | |
484 | } else { | |
485 | attr.config = (__u64) -1; | |
8dd2a131 | 486 | } |
efd2b924 | 487 | |
a2a6604e | 488 | |
0b80f8b3 | 489 | attr.sample_period = 1; |
b4b62ee6 | 490 | evsel__init(evsel, &attr, idx); |
efd2b924 ACM |
491 | } |
492 | ||
493 | return evsel; | |
494 | ||
495 | out_free: | |
74cf249d | 496 | zfree(&evsel->name); |
efd2b924 | 497 | free(evsel); |
8dd2a131 JO |
498 | out_err: |
499 | return ERR_PTR(err); | |
efd2b924 | 500 | } |
378ef0f5 | 501 | #endif |
efd2b924 | 502 | |
545a96c9 | 503 | const char *const evsel__hw_names[PERF_COUNT_HW_MAX] = { |
c410431c ACM |
504 | "cycles", |
505 | "instructions", | |
506 | "cache-references", | |
507 | "cache-misses", | |
508 | "branches", | |
509 | "branch-misses", | |
510 | "bus-cycles", | |
511 | "stalled-cycles-frontend", | |
512 | "stalled-cycles-backend", | |
513 | "ref-cycles", | |
514 | }; | |
515 | ||
112cb561 SL |
516 | char *evsel__bpf_counter_events; |
517 | ||
518 | bool evsel__match_bpf_counter_events(const char *name) | |
519 | { | |
520 | int name_len; | |
521 | bool match; | |
522 | char *ptr; | |
523 | ||
524 | if (!evsel__bpf_counter_events) | |
525 | return false; | |
526 | ||
527 | ptr = strstr(evsel__bpf_counter_events, name); | |
528 | name_len = strlen(name); | |
529 | ||
530 | /* check name matches a full token in evsel__bpf_counter_events */ | |
531 | match = (ptr != NULL) && | |
532 | ((ptr == evsel__bpf_counter_events) || (*(ptr - 1) == ',')) && | |
533 | ((*(ptr + name_len) == ',') || (*(ptr + name_len) == '\0')); | |
534 | ||
535 | return match; | |
536 | } | |
537 | ||
8ab2e96d | 538 | static const char *__evsel__hw_name(u64 config) |
c410431c | 539 | { |
c64e85e1 ACM |
540 | if (config < PERF_COUNT_HW_MAX && evsel__hw_names[config]) |
541 | return evsel__hw_names[config]; | |
c410431c ACM |
542 | |
543 | return "unknown-hardware"; | |
544 | } | |
545 | ||
56933029 | 546 | static int evsel__add_modifiers(struct evsel *evsel, char *bf, size_t size) |
c410431c | 547 | { |
27f18617 | 548 | int colon = 0, r = 0; |
1fc632ce | 549 | struct perf_event_attr *attr = &evsel->core.attr; |
c410431c ACM |
550 | bool exclude_guest_default = false; |
551 | ||
552 | #define MOD_PRINT(context, mod) do { \ | |
553 | if (!attr->exclude_##context) { \ | |
27f18617 | 554 | if (!colon) colon = ++r; \ |
c410431c ACM |
555 | r += scnprintf(bf + r, size - r, "%c", mod); \ |
556 | } } while(0) | |
557 | ||
558 | if (attr->exclude_kernel || attr->exclude_user || attr->exclude_hv) { | |
559 | MOD_PRINT(kernel, 'k'); | |
560 | MOD_PRINT(user, 'u'); | |
561 | MOD_PRINT(hv, 'h'); | |
562 | exclude_guest_default = true; | |
563 | } | |
564 | ||
565 | if (attr->precise_ip) { | |
566 | if (!colon) | |
27f18617 | 567 | colon = ++r; |
c410431c ACM |
568 | r += scnprintf(bf + r, size - r, "%.*s", attr->precise_ip, "ppp"); |
569 | exclude_guest_default = true; | |
570 | } | |
571 | ||
572 | if (attr->exclude_host || attr->exclude_guest == exclude_guest_default) { | |
573 | MOD_PRINT(host, 'H'); | |
574 | MOD_PRINT(guest, 'G'); | |
575 | } | |
576 | #undef MOD_PRINT | |
577 | if (colon) | |
27f18617 | 578 | bf[colon - 1] = ':'; |
c410431c ACM |
579 | return r; |
580 | } | |
581 | ||
ff4207f7 KL |
582 | int __weak arch_evsel__hw_name(struct evsel *evsel, char *bf, size_t size) |
583 | { | |
584 | return scnprintf(bf, size, "%s", __evsel__hw_name(evsel->core.attr.config)); | |
585 | } | |
586 | ||
8ab2e96d | 587 | static int evsel__hw_name(struct evsel *evsel, char *bf, size_t size) |
27f18617 | 588 | { |
ff4207f7 | 589 | int r = arch_evsel__hw_name(evsel, bf, size); |
56933029 | 590 | return r + evsel__add_modifiers(evsel, bf + r, size - r); |
27f18617 ACM |
591 | } |
592 | ||
545a96c9 | 593 | const char *const evsel__sw_names[PERF_COUNT_SW_MAX] = { |
335c2f5d ACM |
594 | "cpu-clock", |
595 | "task-clock", | |
596 | "page-faults", | |
597 | "context-switches", | |
8ad7013b | 598 | "cpu-migrations", |
335c2f5d ACM |
599 | "minor-faults", |
600 | "major-faults", | |
601 | "alignment-faults", | |
602 | "emulation-faults", | |
d22d1a2a | 603 | "dummy", |
335c2f5d ACM |
604 | }; |
605 | ||
8ab2e96d | 606 | static const char *__evsel__sw_name(u64 config) |
335c2f5d | 607 | { |
c64e85e1 ACM |
608 | if (config < PERF_COUNT_SW_MAX && evsel__sw_names[config]) |
609 | return evsel__sw_names[config]; | |
335c2f5d ACM |
610 | return "unknown-software"; |
611 | } | |
612 | ||
8ab2e96d | 613 | static int evsel__sw_name(struct evsel *evsel, char *bf, size_t size) |
335c2f5d | 614 | { |
8ab2e96d | 615 | int r = scnprintf(bf, size, "%s", __evsel__sw_name(evsel->core.attr.config)); |
56933029 | 616 | return r + evsel__add_modifiers(evsel, bf + r, size - r); |
335c2f5d ACM |
617 | } |
618 | ||
75eafc97 FF |
619 | static int evsel__tool_name(enum perf_tool_event ev, char *bf, size_t size) |
620 | { | |
79932d16 | 621 | return scnprintf(bf, size, "%s", perf_tool_event__to_str(ev)); |
75eafc97 FF |
622 | } |
623 | ||
8ab2e96d | 624 | static int __evsel__bp_name(char *bf, size_t size, u64 addr, u64 type) |
287e74aa JO |
625 | { |
626 | int r; | |
627 | ||
628 | r = scnprintf(bf, size, "mem:0x%" PRIx64 ":", addr); | |
629 | ||
630 | if (type & HW_BREAKPOINT_R) | |
631 | r += scnprintf(bf + r, size - r, "r"); | |
632 | ||
633 | if (type & HW_BREAKPOINT_W) | |
634 | r += scnprintf(bf + r, size - r, "w"); | |
635 | ||
636 | if (type & HW_BREAKPOINT_X) | |
637 | r += scnprintf(bf + r, size - r, "x"); | |
638 | ||
639 | return r; | |
640 | } | |
641 | ||
8ab2e96d | 642 | static int evsel__bp_name(struct evsel *evsel, char *bf, size_t size) |
287e74aa | 643 | { |
1fc632ce | 644 | struct perf_event_attr *attr = &evsel->core.attr; |
8ab2e96d | 645 | int r = __evsel__bp_name(bf, size, attr->bp_addr, attr->bp_type); |
56933029 | 646 | return r + evsel__add_modifiers(evsel, bf + r, size - r); |
287e74aa JO |
647 | } |
648 | ||
545a96c9 | 649 | const char *const evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX][EVSEL__MAX_ALIASES] = { |
0b668bc9 ACM |
650 | { "L1-dcache", "l1-d", "l1d", "L1-data", }, |
651 | { "L1-icache", "l1-i", "l1i", "L1-instruction", }, | |
652 | { "LLC", "L2", }, | |
653 | { "dTLB", "d-tlb", "Data-TLB", }, | |
654 | { "iTLB", "i-tlb", "Instruction-TLB", }, | |
655 | { "branch", "branches", "bpu", "btb", "bpc", }, | |
656 | { "node", }, | |
657 | }; | |
658 | ||
545a96c9 | 659 | const char *const evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][EVSEL__MAX_ALIASES] = { |
0b668bc9 ACM |
660 | { "load", "loads", "read", }, |
661 | { "store", "stores", "write", }, | |
662 | { "prefetch", "prefetches", "speculative-read", "speculative-load", }, | |
663 | }; | |
664 | ||
545a96c9 | 665 | const char *const evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX][EVSEL__MAX_ALIASES] = { |
0b668bc9 ACM |
666 | { "refs", "Reference", "ops", "access", }, |
667 | { "misses", "miss", }, | |
668 | }; | |
669 | ||
670 | #define C(x) PERF_COUNT_HW_CACHE_##x | |
671 | #define CACHE_READ (1 << C(OP_READ)) | |
672 | #define CACHE_WRITE (1 << C(OP_WRITE)) | |
673 | #define CACHE_PREFETCH (1 << C(OP_PREFETCH)) | |
674 | #define COP(x) (1 << x) | |
675 | ||
676 | /* | |
4d39c89f | 677 | * cache operation stat |
0b668bc9 ACM |
678 | * L1I : Read and prefetch only |
679 | * ITLB and BPU : Read-only | |
680 | */ | |
545a96c9 | 681 | static const unsigned long evsel__hw_cache_stat[C(MAX)] = { |
0b668bc9 ACM |
682 | [C(L1D)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), |
683 | [C(L1I)] = (CACHE_READ | CACHE_PREFETCH), | |
684 | [C(LL)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), | |
685 | [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), | |
686 | [C(ITLB)] = (CACHE_READ), | |
687 | [C(BPU)] = (CACHE_READ), | |
688 | [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), | |
689 | }; | |
690 | ||
c754c382 | 691 | bool evsel__is_cache_op_valid(u8 type, u8 op) |
0b668bc9 | 692 | { |
c64e85e1 | 693 | if (evsel__hw_cache_stat[type] & COP(op)) |
0b668bc9 ACM |
694 | return true; /* valid */ |
695 | else | |
696 | return false; /* invalid */ | |
697 | } | |
698 | ||
8ab2e96d | 699 | int __evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, char *bf, size_t size) |
0b668bc9 ACM |
700 | { |
701 | if (result) { | |
c64e85e1 ACM |
702 | return scnprintf(bf, size, "%s-%s-%s", evsel__hw_cache[type][0], |
703 | evsel__hw_cache_op[op][0], | |
704 | evsel__hw_cache_result[result][0]); | |
0b668bc9 ACM |
705 | } |
706 | ||
c64e85e1 ACM |
707 | return scnprintf(bf, size, "%s-%s", evsel__hw_cache[type][0], |
708 | evsel__hw_cache_op[op][1]); | |
0b668bc9 ACM |
709 | } |
710 | ||
8ab2e96d | 711 | static int __evsel__hw_cache_name(u64 config, char *bf, size_t size) |
0b668bc9 ACM |
712 | { |
713 | u8 op, result, type = (config >> 0) & 0xff; | |
714 | const char *err = "unknown-ext-hardware-cache-type"; | |
715 | ||
c53412ee | 716 | if (type >= PERF_COUNT_HW_CACHE_MAX) |
0b668bc9 ACM |
717 | goto out_err; |
718 | ||
719 | op = (config >> 8) & 0xff; | |
720 | err = "unknown-ext-hardware-cache-op"; | |
c53412ee | 721 | if (op >= PERF_COUNT_HW_CACHE_OP_MAX) |
0b668bc9 ACM |
722 | goto out_err; |
723 | ||
724 | result = (config >> 16) & 0xff; | |
725 | err = "unknown-ext-hardware-cache-result"; | |
c53412ee | 726 | if (result >= PERF_COUNT_HW_CACHE_RESULT_MAX) |
0b668bc9 ACM |
727 | goto out_err; |
728 | ||
729 | err = "invalid-cache"; | |
c754c382 | 730 | if (!evsel__is_cache_op_valid(type, op)) |
0b668bc9 ACM |
731 | goto out_err; |
732 | ||
8ab2e96d | 733 | return __evsel__hw_cache_type_op_res_name(type, op, result, bf, size); |
0b668bc9 ACM |
734 | out_err: |
735 | return scnprintf(bf, size, "%s", err); | |
736 | } | |
737 | ||
8ab2e96d | 738 | static int evsel__hw_cache_name(struct evsel *evsel, char *bf, size_t size) |
0b668bc9 | 739 | { |
8ab2e96d | 740 | int ret = __evsel__hw_cache_name(evsel->core.attr.config, bf, size); |
56933029 | 741 | return ret + evsel__add_modifiers(evsel, bf + ret, size - ret); |
0b668bc9 ACM |
742 | } |
743 | ||
8ab2e96d | 744 | static int evsel__raw_name(struct evsel *evsel, char *bf, size_t size) |
6eef3d9c | 745 | { |
1fc632ce | 746 | int ret = scnprintf(bf, size, "raw 0x%" PRIx64, evsel->core.attr.config); |
56933029 | 747 | return ret + evsel__add_modifiers(evsel, bf + ret, size - ret); |
6eef3d9c ACM |
748 | } |
749 | ||
8ab2e96d | 750 | const char *evsel__name(struct evsel *evsel) |
a4460836 | 751 | { |
7289f83c | 752 | char bf[128]; |
a4460836 | 753 | |
fdbdd7e8 ACM |
754 | if (!evsel) |
755 | goto out_unknown; | |
756 | ||
7289f83c ACM |
757 | if (evsel->name) |
758 | return evsel->name; | |
c410431c | 759 | |
1fc632ce | 760 | switch (evsel->core.attr.type) { |
c410431c | 761 | case PERF_TYPE_RAW: |
8ab2e96d | 762 | evsel__raw_name(evsel, bf, sizeof(bf)); |
c410431c ACM |
763 | break; |
764 | ||
765 | case PERF_TYPE_HARDWARE: | |
8ab2e96d | 766 | evsel__hw_name(evsel, bf, sizeof(bf)); |
c410431c | 767 | break; |
0b668bc9 ACM |
768 | |
769 | case PERF_TYPE_HW_CACHE: | |
8ab2e96d | 770 | evsel__hw_cache_name(evsel, bf, sizeof(bf)); |
0b668bc9 ACM |
771 | break; |
772 | ||
335c2f5d | 773 | case PERF_TYPE_SOFTWARE: |
79932d16 | 774 | if (evsel__is_tool(evsel)) |
75eafc97 | 775 | evsel__tool_name(evsel->tool_event, bf, sizeof(bf)); |
3371f389 | 776 | else |
8ab2e96d | 777 | evsel__sw_name(evsel, bf, sizeof(bf)); |
335c2f5d ACM |
778 | break; |
779 | ||
a4460836 | 780 | case PERF_TYPE_TRACEPOINT: |
7289f83c | 781 | scnprintf(bf, sizeof(bf), "%s", "unknown tracepoint"); |
a4460836 ACM |
782 | break; |
783 | ||
287e74aa | 784 | case PERF_TYPE_BREAKPOINT: |
8ab2e96d | 785 | evsel__bp_name(evsel, bf, sizeof(bf)); |
287e74aa JO |
786 | break; |
787 | ||
c410431c | 788 | default: |
ca1b1457 | 789 | scnprintf(bf, sizeof(bf), "unknown attr type: %d", |
1fc632ce | 790 | evsel->core.attr.type); |
a4460836 | 791 | break; |
c410431c ACM |
792 | } |
793 | ||
7289f83c ACM |
794 | evsel->name = strdup(bf); |
795 | ||
fdbdd7e8 ACM |
796 | if (evsel->name) |
797 | return evsel->name; | |
798 | out_unknown: | |
799 | return "unknown"; | |
c410431c ACM |
800 | } |
801 | ||
ce1d3bc2 ACM |
802 | bool evsel__name_is(struct evsel *evsel, const char *name) |
803 | { | |
804 | return !strcmp(evsel__name(evsel), name); | |
805 | } | |
806 | ||
2b62b3a6 IR |
807 | const char *evsel__metric_id(const struct evsel *evsel) |
808 | { | |
809 | if (evsel->metric_id) | |
810 | return evsel->metric_id; | |
811 | ||
79932d16 IR |
812 | if (evsel__is_tool(evsel)) |
813 | return perf_tool_event__to_str(evsel->tool_event); | |
2b62b3a6 IR |
814 | |
815 | return "unknown"; | |
816 | } | |
817 | ||
8ab2e96d | 818 | const char *evsel__group_name(struct evsel *evsel) |
717e263f NK |
819 | { |
820 | return evsel->group_name ?: "anon group"; | |
821 | } | |
822 | ||
8ef278bb JO |
823 | /* |
824 | * Returns the group details for the specified leader, | |
825 | * with following rules. | |
826 | * | |
827 | * For record -e '{cycles,instructions}' | |
828 | * 'anon group { cycles:u, instructions:u }' | |
829 | * | |
830 | * For record -e 'cycles,instructions' and report --group | |
831 | * 'cycles:u, instructions:u' | |
832 | */ | |
347c751a | 833 | int evsel__group_desc(struct evsel *evsel, char *buf, size_t size) |
717e263f | 834 | { |
8ef278bb | 835 | int ret = 0; |
eae7044b | 836 | bool first = true; |
32dcd021 | 837 | struct evsel *pos; |
8ab2e96d | 838 | const char *group_name = evsel__group_name(evsel); |
717e263f | 839 | |
8ef278bb JO |
840 | if (!evsel->forced_leader) |
841 | ret = scnprintf(buf, size, "%s { ", group_name); | |
717e263f | 842 | |
eae7044b NK |
843 | for_each_group_evsel(pos, evsel) { |
844 | if (symbol_conf.skip_empty && | |
845 | evsel__hists(pos)->stats.nr_samples == 0) | |
846 | continue; | |
717e263f | 847 | |
eae7044b NK |
848 | ret += scnprintf(buf + ret, size - ret, "%s%s", |
849 | first ? "" : ", ", evsel__name(pos)); | |
850 | first = false; | |
851 | } | |
717e263f | 852 | |
8ef278bb JO |
853 | if (!evsel->forced_leader) |
854 | ret += scnprintf(buf + ret, size - ret, " }"); | |
717e263f NK |
855 | |
856 | return ret; | |
857 | } | |
858 | ||
6ec17b4e ACM |
859 | static void __evsel__config_callchain(struct evsel *evsel, struct record_opts *opts, |
860 | struct callchain_param *param) | |
6bedfab6 | 861 | { |
c754c382 | 862 | bool function = evsel__is_function_event(evsel); |
1fc632ce | 863 | struct perf_event_attr *attr = &evsel->core.attr; |
34af56af | 864 | const char *arch = perf_env__arch(evsel__env(evsel)); |
6bedfab6 | 865 | |
862b2f8f | 866 | evsel__set_sample_bit(evsel, CALLCHAIN); |
6bedfab6 | 867 | |
792d48b4 ACM |
868 | attr->sample_max_stack = param->max_stack; |
869 | ||
53651b28 | 870 | if (opts->kernel_callchains) |
871 | attr->exclude_callchain_user = 1; | |
872 | if (opts->user_callchains) | |
873 | attr->exclude_callchain_kernel = 1; | |
c3a6a8c4 | 874 | if (param->record_mode == CALLCHAIN_LBR) { |
aad2b21c KL |
875 | if (!opts->branch_stack) { |
876 | if (attr->exclude_user) { | |
877 | pr_warning("LBR callstack option is only available " | |
878 | "to get user callchain information. " | |
879 | "Falling back to framepointers.\n"); | |
880 | } else { | |
862b2f8f | 881 | evsel__set_sample_bit(evsel, BRANCH_STACK); |
aad2b21c | 882 | attr->branch_sample_type = PERF_SAMPLE_BRANCH_USER | |
bd0f8895 AK |
883 | PERF_SAMPLE_BRANCH_CALL_STACK | |
884 | PERF_SAMPLE_BRANCH_NO_CYCLES | | |
d3f85437 KL |
885 | PERF_SAMPLE_BRANCH_NO_FLAGS | |
886 | PERF_SAMPLE_BRANCH_HW_INDEX; | |
aad2b21c KL |
887 | } |
888 | } else | |
889 | pr_warning("Cannot use LBR callstack with branch stack. " | |
890 | "Falling back to framepointers.\n"); | |
891 | } | |
892 | ||
c3a6a8c4 | 893 | if (param->record_mode == CALLCHAIN_DWARF) { |
6bedfab6 | 894 | if (!function) { |
862b2f8f ACM |
895 | evsel__set_sample_bit(evsel, REGS_USER); |
896 | evsel__set_sample_bit(evsel, STACK_USER); | |
34af56af | 897 | if (opts->sample_user_regs && |
856caabf | 898 | DWARF_MINIMAL_REGS(arch) != arch__user_reg_mask()) { |
34af56af | 899 | attr->sample_regs_user |= DWARF_MINIMAL_REGS(arch); |
d194d8fc AB |
900 | pr_warning("WARNING: The use of --call-graph=dwarf may require all the user registers, " |
901 | "specifying a subset with --user-regs may render DWARF unwinding unreliable, " | |
902 | "so the minimal registers set (IP, SP) is explicitly forced.\n"); | |
903 | } else { | |
72105204 | 904 | attr->sample_regs_user |= arch__user_reg_mask(); |
d194d8fc | 905 | } |
c3a6a8c4 | 906 | attr->sample_stack_user = param->dump_size; |
6bedfab6 JO |
907 | attr->exclude_callchain_user = 1; |
908 | } else { | |
909 | pr_info("Cannot use DWARF unwind for function trace event," | |
910 | " falling back to framepointers.\n"); | |
911 | } | |
912 | } | |
913 | ||
914 | if (function) { | |
915 | pr_info("Disabling user space callchains for function trace event.\n"); | |
916 | attr->exclude_callchain_user = 1; | |
917 | } | |
918 | } | |
919 | ||
6ec17b4e ACM |
920 | void evsel__config_callchain(struct evsel *evsel, struct record_opts *opts, |
921 | struct callchain_param *param) | |
1688c2fd ACM |
922 | { |
923 | if (param->enabled) | |
6ec17b4e | 924 | return __evsel__config_callchain(evsel, opts, param); |
1688c2fd ACM |
925 | } |
926 | ||
56933029 | 927 | static void evsel__reset_callgraph(struct evsel *evsel, struct callchain_param *param) |
d457c963 | 928 | { |
1fc632ce | 929 | struct perf_event_attr *attr = &evsel->core.attr; |
d457c963 | 930 | |
862b2f8f | 931 | evsel__reset_sample_bit(evsel, CALLCHAIN); |
d457c963 | 932 | if (param->record_mode == CALLCHAIN_LBR) { |
862b2f8f | 933 | evsel__reset_sample_bit(evsel, BRANCH_STACK); |
d457c963 | 934 | attr->branch_sample_type &= ~(PERF_SAMPLE_BRANCH_USER | |
d3f85437 KL |
935 | PERF_SAMPLE_BRANCH_CALL_STACK | |
936 | PERF_SAMPLE_BRANCH_HW_INDEX); | |
d457c963 KL |
937 | } |
938 | if (param->record_mode == CALLCHAIN_DWARF) { | |
862b2f8f ACM |
939 | evsel__reset_sample_bit(evsel, REGS_USER); |
940 | evsel__reset_sample_bit(evsel, STACK_USER); | |
d457c963 KL |
941 | } |
942 | } | |
943 | ||
35ac0cad ACM |
944 | static void evsel__apply_config_terms(struct evsel *evsel, |
945 | struct record_opts *opts, bool track) | |
930a2e29 | 946 | { |
35ac0cad | 947 | struct evsel_config_term *term; |
32067712 | 948 | struct list_head *config_terms = &evsel->config_terms; |
1fc632ce | 949 | struct perf_event_attr *attr = &evsel->core.attr; |
249d98e5 ACM |
950 | /* callgraph default */ |
951 | struct callchain_param param = { | |
952 | .record_mode = callchain_param.record_mode, | |
953 | }; | |
d457c963 | 954 | u32 dump_size = 0; |
792d48b4 ACM |
955 | int max_stack = 0; |
956 | const char *callgraph_buf = NULL; | |
d457c963 | 957 | |
930a2e29 JO |
958 | list_for_each_entry(term, config_terms, list) { |
959 | switch (term->type) { | |
35ac0cad | 960 | case EVSEL__CONFIG_TERM_PERIOD: |
c2f1cead AK |
961 | if (!(term->weak && opts->user_interval != ULLONG_MAX)) { |
962 | attr->sample_period = term->val.period; | |
963 | attr->freq = 0; | |
862b2f8f | 964 | evsel__reset_sample_bit(evsel, PERIOD); |
c2f1cead | 965 | } |
32067712 | 966 | break; |
35ac0cad | 967 | case EVSEL__CONFIG_TERM_FREQ: |
c2f1cead AK |
968 | if (!(term->weak && opts->user_freq != UINT_MAX)) { |
969 | attr->sample_freq = term->val.freq; | |
970 | attr->freq = 1; | |
862b2f8f | 971 | evsel__set_sample_bit(evsel, PERIOD); |
c2f1cead | 972 | } |
09af2a55 | 973 | break; |
35ac0cad | 974 | case EVSEL__CONFIG_TERM_TIME: |
32067712 | 975 | if (term->val.time) |
862b2f8f | 976 | evsel__set_sample_bit(evsel, TIME); |
32067712 | 977 | else |
862b2f8f | 978 | evsel__reset_sample_bit(evsel, TIME); |
32067712 | 979 | break; |
35ac0cad | 980 | case EVSEL__CONFIG_TERM_CALLGRAPH: |
e884602b | 981 | callgraph_buf = term->val.str; |
d457c963 | 982 | break; |
35ac0cad | 983 | case EVSEL__CONFIG_TERM_BRANCH: |
e884602b | 984 | if (term->val.str && strcmp(term->val.str, "no")) { |
862b2f8f | 985 | evsel__set_sample_bit(evsel, BRANCH_STACK); |
e884602b | 986 | parse_branch_str(term->val.str, |
ac12f676 AK |
987 | &attr->branch_sample_type); |
988 | } else | |
862b2f8f | 989 | evsel__reset_sample_bit(evsel, BRANCH_STACK); |
ac12f676 | 990 | break; |
35ac0cad | 991 | case EVSEL__CONFIG_TERM_STACK_USER: |
d457c963 KL |
992 | dump_size = term->val.stack_user; |
993 | break; | |
35ac0cad | 994 | case EVSEL__CONFIG_TERM_MAX_STACK: |
792d48b4 ACM |
995 | max_stack = term->val.max_stack; |
996 | break; | |
35ac0cad | 997 | case EVSEL__CONFIG_TERM_MAX_EVENTS: |
2fda5ada ACM |
998 | evsel->max_events = term->val.max_events; |
999 | break; | |
35ac0cad | 1000 | case EVSEL__CONFIG_TERM_INHERIT: |
374ce938 WN |
1001 | /* |
1002 | * attr->inherit should has already been set by | |
6ec17b4e | 1003 | * evsel__config. If user explicitly set |
374ce938 WN |
1004 | * inherit using config terms, override global |
1005 | * opt->no_inherit setting. | |
1006 | */ | |
1007 | attr->inherit = term->val.inherit ? 1 : 0; | |
1008 | break; | |
35ac0cad | 1009 | case EVSEL__CONFIG_TERM_OVERWRITE: |
626a6b78 WN |
1010 | attr->write_backward = term->val.overwrite ? 1 : 0; |
1011 | break; | |
35ac0cad | 1012 | case EVSEL__CONFIG_TERM_DRV_CFG: |
2178790b | 1013 | break; |
35ac0cad | 1014 | case EVSEL__CONFIG_TERM_PERCORE: |
064b4e82 | 1015 | break; |
35ac0cad | 1016 | case EVSEL__CONFIG_TERM_AUX_OUTPUT: |
1b992154 AH |
1017 | attr->aux_output = term->val.aux_output ? 1 : 0; |
1018 | break; | |
35ac0cad | 1019 | case EVSEL__CONFIG_TERM_AUX_SAMPLE_SIZE: |
eb7a52d4 AH |
1020 | /* Already applied by auxtrace */ |
1021 | break; | |
35ac0cad | 1022 | case EVSEL__CONFIG_TERM_CFG_CHG: |
a1ac7de6 | 1023 | break; |
930a2e29 JO |
1024 | default: |
1025 | break; | |
1026 | } | |
1027 | } | |
d457c963 KL |
1028 | |
1029 | /* User explicitly set per-event callgraph, clear the old setting and reset. */ | |
792d48b4 | 1030 | if ((callgraph_buf != NULL) || (dump_size > 0) || max_stack) { |
0d3dcc0e ACM |
1031 | bool sample_address = false; |
1032 | ||
792d48b4 ACM |
1033 | if (max_stack) { |
1034 | param.max_stack = max_stack; | |
1035 | if (callgraph_buf == NULL) | |
1036 | callgraph_buf = "fp"; | |
1037 | } | |
d457c963 KL |
1038 | |
1039 | /* parse callgraph parameters */ | |
1040 | if (callgraph_buf != NULL) { | |
f9db0d0f KL |
1041 | if (!strcmp(callgraph_buf, "no")) { |
1042 | param.enabled = false; | |
1043 | param.record_mode = CALLCHAIN_NONE; | |
1044 | } else { | |
1045 | param.enabled = true; | |
1046 | if (parse_callchain_record(callgraph_buf, ¶m)) { | |
1047 | pr_err("per-event callgraph setting for %s failed. " | |
1048 | "Apply callgraph global setting for it\n", | |
1049 | evsel->name); | |
1050 | return; | |
1051 | } | |
0d3dcc0e ACM |
1052 | if (param.record_mode == CALLCHAIN_DWARF) |
1053 | sample_address = true; | |
d457c963 KL |
1054 | } |
1055 | } | |
1056 | if (dump_size > 0) { | |
1057 | dump_size = round_up(dump_size, sizeof(u64)); | |
1058 | param.dump_size = dump_size; | |
1059 | } | |
1060 | ||
1061 | /* If global callgraph set, clear it */ | |
1062 | if (callchain_param.enabled) | |
56933029 | 1063 | evsel__reset_callgraph(evsel, &callchain_param); |
d457c963 KL |
1064 | |
1065 | /* set perf-event callgraph */ | |
0d3dcc0e ACM |
1066 | if (param.enabled) { |
1067 | if (sample_address) { | |
862b2f8f ACM |
1068 | evsel__set_sample_bit(evsel, ADDR); |
1069 | evsel__set_sample_bit(evsel, DATA_SRC); | |
1fc632ce | 1070 | evsel->core.attr.mmap_data = track; |
0d3dcc0e | 1071 | } |
6ec17b4e | 1072 | evsel__config_callchain(evsel, opts, ¶m); |
0d3dcc0e | 1073 | } |
d457c963 | 1074 | } |
930a2e29 JO |
1075 | } |
1076 | ||
35ac0cad | 1077 | struct evsel_config_term *__evsel__get_config_term(struct evsel *evsel, enum evsel_term_type type) |
eb7a52d4 | 1078 | { |
35ac0cad | 1079 | struct evsel_config_term *term, *found_term = NULL; |
eb7a52d4 AH |
1080 | |
1081 | list_for_each_entry(term, &evsel->config_terms, list) { | |
1082 | if (term->type == type) | |
1083 | found_term = term; | |
1084 | } | |
1085 | ||
1086 | return found_term; | |
1087 | } | |
1088 | ||
ea8d0ed6 KL |
1089 | void __weak arch_evsel__set_sample_weight(struct evsel *evsel) |
1090 | { | |
1091 | evsel__set_sample_bit(evsel, WEIGHT); | |
1092 | } | |
1093 | ||
9ab95b0b RB |
1094 | void __weak arch__post_evsel_config(struct evsel *evsel __maybe_unused, |
1095 | struct perf_event_attr *attr __maybe_unused) | |
1096 | { | |
1097 | } | |
1098 | ||
3606c0e1 GG |
1099 | static void evsel__set_default_freq_period(struct record_opts *opts, |
1100 | struct perf_event_attr *attr) | |
1101 | { | |
1102 | if (opts->freq) { | |
1103 | attr->freq = 1; | |
1104 | attr->sample_freq = opts->freq; | |
1105 | } else { | |
1106 | attr->sample_period = opts->default_interval; | |
1107 | } | |
1108 | } | |
1109 | ||
49c692b7 NK |
1110 | static bool evsel__is_offcpu_event(struct evsel *evsel) |
1111 | { | |
ce1d3bc2 | 1112 | return evsel__is_bpf_output(evsel) && evsel__name_is(evsel, OFFCPU_EVENT); |
49c692b7 NK |
1113 | } |
1114 | ||
774cb499 JO |
1115 | /* |
1116 | * The enable_on_exec/disabled value strategy: | |
1117 | * | |
1118 | * 1) For any type of traced program: | |
1119 | * - all independent events and group leaders are disabled | |
1120 | * - all group members are enabled | |
1121 | * | |
1122 | * Group members are ruled by group leaders. They need to | |
1123 | * be enabled, because the group scheduling relies on that. | |
1124 | * | |
1125 | * 2) For traced programs executed by perf: | |
1126 | * - all independent events and group leaders have | |
1127 | * enable_on_exec set | |
1128 | * - we don't specifically enable or disable any event during | |
1129 | * the record command | |
1130 | * | |
1131 | * Independent events and group leaders are initially disabled | |
1132 | * and get enabled by exec. Group members are ruled by group | |
1133 | * leaders as stated in 1). | |
1134 | * | |
1135 | * 3) For traced programs attached by perf (pid/tid): | |
1136 | * - we specifically enable or disable all events during | |
1137 | * the record command | |
1138 | * | |
1139 | * When attaching events to already running traced we | |
1140 | * enable/disable events specifically, as there's no | |
1141 | * initial traced exec call. | |
1142 | */ | |
6ec17b4e ACM |
1143 | void evsel__config(struct evsel *evsel, struct record_opts *opts, |
1144 | struct callchain_param *callchain) | |
0f82ebc4 | 1145 | { |
fba7c866 | 1146 | struct evsel *leader = evsel__leader(evsel); |
1fc632ce | 1147 | struct perf_event_attr *attr = &evsel->core.attr; |
60b0896c | 1148 | int track = evsel->tracking; |
3aa5939d | 1149 | bool per_cpu = opts->target.default_per_cpu && !opts->target.per_thread; |
0f82ebc4 | 1150 | |
594ac61a | 1151 | attr->sample_id_all = perf_missing_features.sample_id_all ? 0 : 1; |
0f82ebc4 | 1152 | attr->inherit = !opts->no_inherit; |
626a6b78 | 1153 | attr->write_backward = opts->overwrite ? 1 : 0; |
e17f343c | 1154 | attr->read_format = PERF_FORMAT_LOST; |
0f82ebc4 | 1155 | |
862b2f8f ACM |
1156 | evsel__set_sample_bit(evsel, IP); |
1157 | evsel__set_sample_bit(evsel, TID); | |
0f82ebc4 | 1158 | |
3c176311 | 1159 | if (evsel->sample_read) { |
862b2f8f | 1160 | evsel__set_sample_bit(evsel, READ); |
3c176311 JO |
1161 | |
1162 | /* | |
1163 | * We need ID even in case of single event, because | |
1164 | * PERF_SAMPLE_READ process ID specific data. | |
1165 | */ | |
862b2f8f | 1166 | evsel__set_sample_id(evsel, false); |
3c176311 JO |
1167 | |
1168 | /* | |
1169 | * Apply group format only if we belong to group | |
1170 | * with more than one members. | |
1171 | */ | |
5643b1a5 | 1172 | if (leader->core.nr_members > 1) { |
3c176311 JO |
1173 | attr->read_format |= PERF_FORMAT_GROUP; |
1174 | attr->inherit = 0; | |
1175 | } | |
1176 | } | |
1177 | ||
0f82ebc4 | 1178 | /* |
17314e23 | 1179 | * We default some events to have a default interval. But keep |
0f82ebc4 ACM |
1180 | * it a weak assumption overridable by the user. |
1181 | */ | |
3606c0e1 GG |
1182 | if ((evsel->is_libpfm_event && !attr->sample_period) || |
1183 | (!evsel->is_libpfm_event && (!attr->sample_period || | |
1184 | opts->user_freq != UINT_MAX || | |
1185 | opts->user_interval != ULLONG_MAX))) | |
1186 | evsel__set_default_freq_period(opts, attr); | |
1187 | ||
ce4326d2 DS |
1188 | /* |
1189 | * If attr->freq was set (here or earlier), ask for period | |
1190 | * to be sampled. | |
1191 | */ | |
1192 | if (attr->freq) | |
1193 | evsel__set_sample_bit(evsel, PERIOD); | |
0f82ebc4 ACM |
1194 | |
1195 | if (opts->no_samples) | |
1196 | attr->sample_freq = 0; | |
1197 | ||
a17f0697 | 1198 | if (opts->inherit_stat) { |
1fc632ce | 1199 | evsel->core.attr.read_format |= |
a17f0697 JO |
1200 | PERF_FORMAT_TOTAL_TIME_ENABLED | |
1201 | PERF_FORMAT_TOTAL_TIME_RUNNING | | |
1202 | PERF_FORMAT_ID; | |
0f82ebc4 | 1203 | attr->inherit_stat = 1; |
a17f0697 | 1204 | } |
0f82ebc4 ACM |
1205 | |
1206 | if (opts->sample_address) { | |
862b2f8f | 1207 | evsel__set_sample_bit(evsel, ADDR); |
0f82ebc4 ACM |
1208 | attr->mmap_data = track; |
1209 | } | |
1210 | ||
f140373b JO |
1211 | /* |
1212 | * We don't allow user space callchains for function trace | |
1213 | * event, due to issues with page faults while tracing page | |
1214 | * fault handler and its overall trickiness nature. | |
1215 | */ | |
c754c382 | 1216 | if (evsel__is_function_event(evsel)) |
1fc632ce | 1217 | evsel->core.attr.exclude_callchain_user = 1; |
f140373b | 1218 | |
e68ae9cf | 1219 | if (callchain && callchain->enabled && !evsel->no_aux_samples) |
6ec17b4e | 1220 | evsel__config_callchain(evsel, opts, callchain); |
26d33022 | 1221 | |
c4735d99 JY |
1222 | if (opts->sample_intr_regs && !evsel->no_aux_samples && |
1223 | !evsel__is_dummy_event(evsel)) { | |
bcc84ec6 | 1224 | attr->sample_regs_intr = opts->sample_intr_regs; |
862b2f8f | 1225 | evsel__set_sample_bit(evsel, REGS_INTR); |
6a21c0b5 SE |
1226 | } |
1227 | ||
c4735d99 JY |
1228 | if (opts->sample_user_regs && !evsel->no_aux_samples && |
1229 | !evsel__is_dummy_event(evsel)) { | |
84c41742 | 1230 | attr->sample_regs_user |= opts->sample_user_regs; |
862b2f8f | 1231 | evsel__set_sample_bit(evsel, REGS_USER); |
84c41742 AK |
1232 | } |
1233 | ||
b6f35ed7 | 1234 | if (target__has_cpu(&opts->target) || opts->sample_cpu) |
862b2f8f | 1235 | evsel__set_sample_bit(evsel, CPU); |
0f82ebc4 | 1236 | |
8affc2b8 | 1237 | /* |
bd1a0be5 | 1238 | * When the user explicitly disabled time don't force it here. |
8affc2b8 AK |
1239 | */ |
1240 | if (opts->sample_time && | |
1241 | (!perf_missing_features.sample_id_all && | |
3abebc55 AH |
1242 | (!opts->no_inherit || target__has_cpu(&opts->target) || per_cpu || |
1243 | opts->sample_time_set))) | |
862b2f8f | 1244 | evsel__set_sample_bit(evsel, TIME); |
0f82ebc4 | 1245 | |
6ff1ce76 | 1246 | if (opts->raw_samples && !evsel->no_aux_samples) { |
862b2f8f ACM |
1247 | evsel__set_sample_bit(evsel, TIME); |
1248 | evsel__set_sample_bit(evsel, RAW); | |
1249 | evsel__set_sample_bit(evsel, CPU); | |
0f82ebc4 ACM |
1250 | } |
1251 | ||
ccf49bfc | 1252 | if (opts->sample_address) |
862b2f8f | 1253 | evsel__set_sample_bit(evsel, DATA_SRC); |
ccf49bfc | 1254 | |
3b0a5daa | 1255 | if (opts->sample_phys_addr) |
862b2f8f | 1256 | evsel__set_sample_bit(evsel, PHYS_ADDR); |
3b0a5daa | 1257 | |
509051ea | 1258 | if (opts->no_buffering) { |
0f82ebc4 ACM |
1259 | attr->watermark = 0; |
1260 | attr->wakeup_events = 1; | |
1261 | } | |
6ff1ce76 | 1262 | if (opts->branch_stack && !evsel->no_aux_samples) { |
862b2f8f | 1263 | evsel__set_sample_bit(evsel, BRANCH_STACK); |
bdfebd84 RAV |
1264 | attr->branch_sample_type = opts->branch_stack; |
1265 | } | |
0f82ebc4 | 1266 | |
05484298 | 1267 | if (opts->sample_weight) |
ea8d0ed6 | 1268 | arch_evsel__set_sample_weight(evsel); |
05484298 | 1269 | |
e29386c8 JO |
1270 | attr->task = track; |
1271 | attr->mmap = track; | |
1272 | attr->mmap2 = track && !perf_missing_features.mmap2; | |
1273 | attr->comm = track; | |
1274 | attr->build_id = track && opts->build_id; | |
1275 | ||
246eba8e AH |
1276 | /* |
1277 | * ksymbol is tracked separately with text poke because it needs to be | |
1278 | * system wide and enabled immediately. | |
1279 | */ | |
1280 | if (!opts->text_poke) | |
1281 | attr->ksymbol = track && !perf_missing_features.ksymbol; | |
74a1e863 | 1282 | attr->bpf_event = track && !opts->no_bpf_event && !perf_missing_features.bpf; |
0f82ebc4 | 1283 | |
f3b3614a HB |
1284 | if (opts->record_namespaces) |
1285 | attr->namespaces = track; | |
1286 | ||
8fb4b679 NK |
1287 | if (opts->record_cgroup) { |
1288 | attr->cgroup = track && !perf_missing_features.cgroup; | |
862b2f8f | 1289 | evsel__set_sample_bit(evsel, CGROUP); |
8fb4b679 NK |
1290 | } |
1291 | ||
542b88fd KL |
1292 | if (opts->sample_data_page_size) |
1293 | evsel__set_sample_bit(evsel, DATA_PAGE_SIZE); | |
1294 | ||
c1de7f3d KL |
1295 | if (opts->sample_code_page_size) |
1296 | evsel__set_sample_bit(evsel, CODE_PAGE_SIZE); | |
1297 | ||
b757bb09 AH |
1298 | if (opts->record_switch_events) |
1299 | attr->context_switch = track; | |
1300 | ||
475eeab9 | 1301 | if (opts->sample_transaction) |
862b2f8f | 1302 | evsel__set_sample_bit(evsel, TRANSACTION); |
475eeab9 | 1303 | |
85c273d2 | 1304 | if (opts->running_time) { |
1fc632ce | 1305 | evsel->core.attr.read_format |= |
85c273d2 AK |
1306 | PERF_FORMAT_TOTAL_TIME_ENABLED | |
1307 | PERF_FORMAT_TOTAL_TIME_RUNNING; | |
1308 | } | |
1309 | ||
774cb499 JO |
1310 | /* |
1311 | * XXX see the function comment above | |
1312 | * | |
1313 | * Disabling only independent events or group leaders, | |
1314 | * keeping group members enabled. | |
1315 | */ | |
c754c382 | 1316 | if (evsel__is_group_leader(evsel)) |
774cb499 JO |
1317 | attr->disabled = 1; |
1318 | ||
1319 | /* | |
1320 | * Setting enable_on_exec for independent events and | |
1321 | * group leaders for traced executed by perf. | |
1322 | */ | |
c754c382 | 1323 | if (target__none(&opts->target) && evsel__is_group_leader(evsel) && |
cb4b9e68 | 1324 | !opts->target.initial_delay) |
0f82ebc4 | 1325 | attr->enable_on_exec = 1; |
2afd2bcf AH |
1326 | |
1327 | if (evsel->immediate) { | |
1328 | attr->disabled = 0; | |
1329 | attr->enable_on_exec = 0; | |
1330 | } | |
814c8c38 PZ |
1331 | |
1332 | clockid = opts->clockid; | |
1333 | if (opts->use_clockid) { | |
1334 | attr->use_clockid = 1; | |
1335 | attr->clockid = opts->clockid; | |
1336 | } | |
930a2e29 | 1337 | |
7f94af7a | 1338 | if (evsel->precise_max) |
4e8a5c15 | 1339 | attr->precise_ip = 3; |
7f94af7a | 1340 | |
85723885 JO |
1341 | if (opts->all_user) { |
1342 | attr->exclude_kernel = 1; | |
1343 | attr->exclude_user = 0; | |
1344 | } | |
1345 | ||
1346 | if (opts->all_kernel) { | |
1347 | attr->exclude_kernel = 0; | |
1348 | attr->exclude_user = 1; | |
1349 | } | |
1350 | ||
fe1f61b3 | 1351 | if (evsel->core.own_cpus || evsel->unit) |
1fc632ce | 1352 | evsel->core.attr.read_format |= PERF_FORMAT_ID; |
4ab8455f | 1353 | |
930a2e29 JO |
1354 | /* |
1355 | * Apply event specific term settings, | |
1356 | * it overloads any global configuration. | |
1357 | */ | |
35ac0cad | 1358 | evsel__apply_config_terms(evsel, opts, track); |
a359c17a JO |
1359 | |
1360 | evsel->ignore_missing_thread = opts->ignore_missing_thread; | |
f290aa1f JO |
1361 | |
1362 | /* The --period option takes the precedence. */ | |
1363 | if (opts->period_set) { | |
1364 | if (opts->period) | |
862b2f8f | 1365 | evsel__set_sample_bit(evsel, PERIOD); |
f290aa1f | 1366 | else |
862b2f8f | 1367 | evsel__reset_sample_bit(evsel, PERIOD); |
f290aa1f | 1368 | } |
95035c5e KL |
1369 | |
1370 | /* | |
5885a202 IR |
1371 | * A dummy event never triggers any actual counter and therefore |
1372 | * cannot be used with branch_stack. | |
1373 | * | |
95035c5e KL |
1374 | * For initial_delay, a dummy event is added implicitly. |
1375 | * The software event will trigger -EOPNOTSUPP error out, | |
1376 | * if BRANCH_STACK bit is set. | |
1377 | */ | |
442ad225 | 1378 | if (evsel__is_dummy_event(evsel)) |
862b2f8f | 1379 | evsel__reset_sample_bit(evsel, BRANCH_STACK); |
9ab95b0b | 1380 | |
49c692b7 NK |
1381 | if (evsel__is_offcpu_event(evsel)) |
1382 | evsel->core.attr.sample_type &= OFFCPU_SAMPLE_TYPES; | |
0698461a | 1383 | |
9ab95b0b | 1384 | arch__post_evsel_config(evsel, attr); |
0f82ebc4 ACM |
1385 | } |
1386 | ||
ad681adf | 1387 | int evsel__set_filter(struct evsel *evsel, const char *filter) |
12467ae4 ACM |
1388 | { |
1389 | char *new_filter = strdup(filter); | |
1390 | ||
1391 | if (new_filter != NULL) { | |
1392 | free(evsel->filter); | |
1393 | evsel->filter = new_filter; | |
1394 | return 0; | |
1395 | } | |
1396 | ||
1397 | return -1; | |
1398 | } | |
1399 | ||
ad681adf | 1400 | static int evsel__append_filter(struct evsel *evsel, const char *fmt, const char *filter) |
64ec84f5 ACM |
1401 | { |
1402 | char *new_filter; | |
1403 | ||
1404 | if (evsel->filter == NULL) | |
ad681adf | 1405 | return evsel__set_filter(evsel, filter); |
64ec84f5 | 1406 | |
b15d0a4c | 1407 | if (asprintf(&new_filter, fmt, evsel->filter, filter) > 0) { |
64ec84f5 ACM |
1408 | free(evsel->filter); |
1409 | evsel->filter = new_filter; | |
1410 | return 0; | |
1411 | } | |
1412 | ||
1413 | return -1; | |
1414 | } | |
1415 | ||
ad681adf | 1416 | int evsel__append_tp_filter(struct evsel *evsel, const char *filter) |
3541c034 | 1417 | { |
ad681adf | 1418 | return evsel__append_filter(evsel, "(%s) && (%s)", filter); |
3541c034 MP |
1419 | } |
1420 | ||
ad681adf | 1421 | int evsel__append_addr_filter(struct evsel *evsel, const char *filter) |
1e857484 | 1422 | { |
ad681adf | 1423 | return evsel__append_filter(evsel, "%s,%s", filter); |
1e857484 MP |
1424 | } |
1425 | ||
363fb121 | 1426 | /* Caller has to clear disabled after going through all CPUs. */ |
6f844b1f | 1427 | int evsel__enable_cpu(struct evsel *evsel, int cpu_map_idx) |
363fb121 | 1428 | { |
6f844b1f | 1429 | return perf_evsel__enable_cpu(&evsel->core, cpu_map_idx); |
363fb121 AK |
1430 | } |
1431 | ||
ec7f24ef | 1432 | int evsel__enable(struct evsel *evsel) |
e2407bef | 1433 | { |
a00571fd | 1434 | int err = perf_evsel__enable(&evsel->core); |
b7e8452b ACM |
1435 | |
1436 | if (!err) | |
1437 | evsel->disabled = false; | |
b7e8452b | 1438 | return err; |
e2407bef AK |
1439 | } |
1440 | ||
363fb121 | 1441 | /* Caller has to set disabled after going through all CPUs. */ |
6f844b1f | 1442 | int evsel__disable_cpu(struct evsel *evsel, int cpu_map_idx) |
363fb121 | 1443 | { |
6f844b1f | 1444 | return perf_evsel__disable_cpu(&evsel->core, cpu_map_idx); |
363fb121 AK |
1445 | } |
1446 | ||
9a10bb22 | 1447 | int evsel__disable(struct evsel *evsel) |
e98a4cbb | 1448 | { |
a00571fd | 1449 | int err = perf_evsel__disable(&evsel->core); |
b7e8452b ACM |
1450 | /* |
1451 | * We mark it disabled here so that tools that disable a event can | |
1452 | * ignore events after they disable it. I.e. the ring buffer may have | |
1453 | * already a few more events queued up before the kernel got the stop | |
1454 | * request. | |
1455 | */ | |
1456 | if (!err) | |
1457 | evsel->disabled = true; | |
1458 | ||
1459 | return err; | |
e98a4cbb JO |
1460 | } |
1461 | ||
a7d212fc | 1462 | void free_config_terms(struct list_head *config_terms) |
930a2e29 | 1463 | { |
35ac0cad | 1464 | struct evsel_config_term *term, *h; |
930a2e29 | 1465 | |
a7d212fc | 1466 | list_for_each_entry_safe(term, h, config_terms, list) { |
e56fbc9d | 1467 | list_del_init(&term->list); |
3220fb8d LY |
1468 | if (term->free_str) |
1469 | zfree(&term->val.str); | |
930a2e29 JO |
1470 | free(term); |
1471 | } | |
1472 | } | |
1473 | ||
a7d212fc AH |
1474 | static void evsel__free_config_terms(struct evsel *evsel) |
1475 | { | |
1476 | free_config_terms(&evsel->config_terms); | |
1477 | } | |
1478 | ||
30f7c591 | 1479 | void evsel__exit(struct evsel *evsel) |
69aad6f1 | 1480 | { |
b27c4ece | 1481 | assert(list_empty(&evsel->core.node)); |
d49e4695 | 1482 | assert(evsel->evlist == NULL); |
fa853c4b | 1483 | bpf_counter__destroy(evsel); |
d180aa56 | 1484 | perf_bpf_filter__destroy(evsel); |
7d1e239e | 1485 | evsel__free_counts(evsel); |
88761fa1 | 1486 | perf_evsel__free_fd(&evsel->core); |
70c20369 | 1487 | perf_evsel__free_id(&evsel->core); |
35ac0cad | 1488 | evsel__free_config_terms(evsel); |
a53b6460 | 1489 | cgroup__put(evsel->cgrp); |
d400bd3a | 1490 | perf_cpu_map__put(evsel->core.cpus); |
fe1f61b3 | 1491 | perf_cpu_map__put(evsel->core.own_cpus); |
af663bd0 | 1492 | perf_thread_map__put(evsel->core.threads); |
597e48c1 | 1493 | zfree(&evsel->group_name); |
597e48c1 | 1494 | zfree(&evsel->name); |
3f6a74bd | 1495 | zfree(&evsel->filter); |
d4953f7e | 1496 | zfree(&evsel->pmu_name); |
a90cc5a9 | 1497 | zfree(&evsel->group_pmu_name); |
b194c9cd | 1498 | zfree(&evsel->unit); |
2b62b3a6 | 1499 | zfree(&evsel->metric_id); |
034f7ee1 JY |
1500 | evsel__zero_per_pkg(evsel); |
1501 | hashmap__free(evsel->per_pkg_mask); | |
1502 | evsel->per_pkg_mask = NULL; | |
3efc899d | 1503 | zfree(&evsel->metric_events); |
ce8ccff5 | 1504 | perf_evsel__object.fini(evsel); |
6828d692 IR |
1505 | if (evsel->tool_event == PERF_TOOL_SYSTEM_TIME || |
1506 | evsel->tool_event == PERF_TOOL_USER_TIME) | |
1507 | xyarray__delete(evsel->start_times); | |
ef1d1af2 ACM |
1508 | } |
1509 | ||
5eb2dd2a | 1510 | void evsel__delete(struct evsel *evsel) |
ef1d1af2 | 1511 | { |
cf57cf51 IR |
1512 | if (!evsel) |
1513 | return; | |
1514 | ||
30f7c591 | 1515 | evsel__exit(evsel); |
69aad6f1 ACM |
1516 | free(evsel); |
1517 | } | |
c52b12ed | 1518 | |
6f844b1f | 1519 | void evsel__compute_deltas(struct evsel *evsel, int cpu_map_idx, int thread, |
12f5261d | 1520 | struct perf_counts_values *count) |
c7a79c47 SE |
1521 | { |
1522 | struct perf_counts_values tmp; | |
1523 | ||
1524 | if (!evsel->prev_raw_counts) | |
1525 | return; | |
1526 | ||
f976bc6b NK |
1527 | tmp = *perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread); |
1528 | *perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread) = *count; | |
c7a79c47 SE |
1529 | |
1530 | count->val = count->val - tmp.val; | |
1531 | count->ena = count->ena - tmp.ena; | |
1532 | count->run = count->run - tmp.run; | |
1533 | } | |
1534 | ||
da8c94c0 | 1535 | static int evsel__read_one(struct evsel *evsel, int cpu_map_idx, int thread) |
13112bbf | 1536 | { |
da8c94c0 | 1537 | struct perf_counts_values *count = perf_counts(evsel->counts, cpu_map_idx, thread); |
13112bbf | 1538 | |
da8c94c0 | 1539 | return perf_evsel__read(&evsel->core, cpu_map_idx, thread, count); |
f7794d52 JO |
1540 | } |
1541 | ||
6f844b1f | 1542 | static void evsel__set_count(struct evsel *counter, int cpu_map_idx, int thread, |
f52679b7 | 1543 | u64 val, u64 ena, u64 run, u64 lost) |
f7794d52 JO |
1544 | { |
1545 | struct perf_counts_values *count; | |
1546 | ||
6f844b1f | 1547 | count = perf_counts(counter->counts, cpu_map_idx, thread); |
f7794d52 JO |
1548 | |
1549 | count->val = val; | |
1550 | count->ena = ena; | |
1551 | count->run = run; | |
f52679b7 | 1552 | count->lost = lost; |
df1d6856 | 1553 | |
6f844b1f | 1554 | perf_counts__set_loaded(counter->counts, cpu_map_idx, thread, true); |
f7794d52 JO |
1555 | } |
1556 | ||
6f844b1f | 1557 | static int evsel__process_group_data(struct evsel *leader, int cpu_map_idx, int thread, u64 *data) |
f7794d52 | 1558 | { |
1fc632ce | 1559 | u64 read_format = leader->core.attr.read_format; |
f7794d52 | 1560 | struct sample_read_value *v; |
f52679b7 | 1561 | u64 nr, ena = 0, run = 0, lost = 0; |
f7794d52 JO |
1562 | |
1563 | nr = *data++; | |
1564 | ||
5643b1a5 | 1565 | if (nr != (u64) leader->core.nr_members) |
f7794d52 JO |
1566 | return -EINVAL; |
1567 | ||
1568 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) | |
1569 | ena = *data++; | |
1570 | ||
1571 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) | |
1572 | run = *data++; | |
1573 | ||
f52679b7 NK |
1574 | v = (void *)data; |
1575 | sample_read_group__for_each(v, nr, read_format) { | |
32dcd021 | 1576 | struct evsel *counter; |
f7794d52 | 1577 | |
f52679b7 | 1578 | counter = evlist__id2evsel(leader->evlist, v->id); |
f7794d52 JO |
1579 | if (!counter) |
1580 | return -EINVAL; | |
1581 | ||
f52679b7 NK |
1582 | if (read_format & PERF_FORMAT_LOST) |
1583 | lost = v->lost; | |
1584 | ||
1585 | evsel__set_count(counter, cpu_map_idx, thread, v->value, ena, run, lost); | |
f7794d52 JO |
1586 | } |
1587 | ||
1588 | return 0; | |
1589 | } | |
1590 | ||
da8c94c0 | 1591 | static int evsel__read_group(struct evsel *leader, int cpu_map_idx, int thread) |
f7794d52 | 1592 | { |
82806c3a | 1593 | struct perf_stat_evsel *ps = leader->stats; |
1fc632ce | 1594 | u64 read_format = leader->core.attr.read_format; |
5c30af92 | 1595 | int size = perf_evsel__read_size(&leader->core); |
f7794d52 JO |
1596 | u64 *data = ps->group_data; |
1597 | ||
1598 | if (!(read_format & PERF_FORMAT_ID)) | |
1599 | return -EINVAL; | |
1600 | ||
c754c382 | 1601 | if (!evsel__is_group_leader(leader)) |
f7794d52 JO |
1602 | return -EINVAL; |
1603 | ||
1604 | if (!data) { | |
1605 | data = zalloc(size); | |
1606 | if (!data) | |
1607 | return -ENOMEM; | |
1608 | ||
1609 | ps->group_data = data; | |
1610 | } | |
1611 | ||
da8c94c0 | 1612 | if (FD(leader, cpu_map_idx, thread) < 0) |
f7794d52 JO |
1613 | return -EINVAL; |
1614 | ||
da8c94c0 | 1615 | if (readn(FD(leader, cpu_map_idx, thread), data, size) <= 0) |
f7794d52 JO |
1616 | return -errno; |
1617 | ||
da8c94c0 | 1618 | return evsel__process_group_data(leader, cpu_map_idx, thread, data); |
f7794d52 JO |
1619 | } |
1620 | ||
6828d692 IR |
1621 | static bool read_until_char(struct io *io, char e) |
1622 | { | |
e9ffa312 | 1623 | int c; |
6828d692 IR |
1624 | |
1625 | do { | |
1626 | c = io__get_char(io); | |
1627 | if (c == -1) | |
1628 | return false; | |
1629 | } while (c != e); | |
1630 | return true; | |
1631 | } | |
1632 | ||
1633 | static int read_stat_field(int fd, struct perf_cpu cpu, int field, __u64 *val) | |
1634 | { | |
1635 | char buf[256]; | |
1636 | struct io io; | |
1637 | int i; | |
1638 | ||
1639 | io__init(&io, fd, buf, sizeof(buf)); | |
1640 | ||
1641 | /* Skip lines to relevant CPU. */ | |
1642 | for (i = -1; i < cpu.cpu; i++) { | |
1643 | if (!read_until_char(&io, '\n')) | |
1644 | return -EINVAL; | |
1645 | } | |
1646 | /* Skip to "cpu". */ | |
1647 | if (io__get_char(&io) != 'c') return -EINVAL; | |
1648 | if (io__get_char(&io) != 'p') return -EINVAL; | |
1649 | if (io__get_char(&io) != 'u') return -EINVAL; | |
1650 | ||
1651 | /* Skip N of cpuN. */ | |
1652 | if (!read_until_char(&io, ' ')) | |
1653 | return -EINVAL; | |
1654 | ||
1655 | i = 1; | |
1656 | while (true) { | |
1657 | if (io__get_dec(&io, val) != ' ') | |
1658 | break; | |
1659 | if (field == i) | |
1660 | return 0; | |
1661 | i++; | |
1662 | } | |
1663 | return -EINVAL; | |
1664 | } | |
1665 | ||
1666 | static int read_pid_stat_field(int fd, int field, __u64 *val) | |
1667 | { | |
1668 | char buf[256]; | |
1669 | struct io io; | |
1670 | int c, i; | |
1671 | ||
1672 | io__init(&io, fd, buf, sizeof(buf)); | |
1673 | if (io__get_dec(&io, val) != ' ') | |
1674 | return -EINVAL; | |
1675 | if (field == 1) | |
1676 | return 0; | |
1677 | ||
1678 | /* Skip comm. */ | |
1679 | if (io__get_char(&io) != '(' || !read_until_char(&io, ')')) | |
1680 | return -EINVAL; | |
1681 | if (field == 2) | |
1682 | return -EINVAL; /* String can't be returned. */ | |
1683 | ||
1684 | /* Skip state */ | |
1685 | if (io__get_char(&io) != ' ' || io__get_char(&io) == -1) | |
1686 | return -EINVAL; | |
1687 | if (field == 3) | |
1688 | return -EINVAL; /* String can't be returned. */ | |
1689 | ||
1690 | /* Loop over numeric fields*/ | |
1691 | if (io__get_char(&io) != ' ') | |
1692 | return -EINVAL; | |
1693 | ||
1694 | i = 4; | |
1695 | while (true) { | |
1696 | c = io__get_dec(&io, val); | |
1697 | if (c == -1) | |
1698 | return -EINVAL; | |
1699 | if (c == -2) { | |
1700 | /* Assume a -ve was read */ | |
1701 | c = io__get_dec(&io, val); | |
1702 | *val *= -1; | |
1703 | } | |
1704 | if (c != ' ') | |
1705 | return -EINVAL; | |
1706 | if (field == i) | |
1707 | return 0; | |
1708 | i++; | |
1709 | } | |
1710 | return -EINVAL; | |
1711 | } | |
1712 | ||
1713 | static int evsel__read_tool(struct evsel *evsel, int cpu_map_idx, int thread) | |
1714 | { | |
1715 | __u64 *start_time, cur_time, delta_start; | |
1716 | int fd, err = 0; | |
1717 | struct perf_counts_values *count; | |
1718 | bool adjust = false; | |
1719 | ||
1720 | count = perf_counts(evsel->counts, cpu_map_idx, thread); | |
1721 | ||
1722 | switch (evsel->tool_event) { | |
1723 | case PERF_TOOL_DURATION_TIME: | |
1724 | /* | |
1725 | * Pretend duration_time is only on the first CPU and thread, or | |
1726 | * else aggregation will scale duration_time by the number of | |
1727 | * CPUs/threads. | |
1728 | */ | |
1729 | start_time = &evsel->start_time; | |
1730 | if (cpu_map_idx == 0 && thread == 0) | |
1731 | cur_time = rdclock(); | |
1732 | else | |
1733 | cur_time = *start_time; | |
1734 | break; | |
1735 | case PERF_TOOL_USER_TIME: | |
1736 | case PERF_TOOL_SYSTEM_TIME: { | |
1737 | bool system = evsel->tool_event == PERF_TOOL_SYSTEM_TIME; | |
1738 | ||
1739 | start_time = xyarray__entry(evsel->start_times, cpu_map_idx, thread); | |
1740 | fd = FD(evsel, cpu_map_idx, thread); | |
1741 | lseek(fd, SEEK_SET, 0); | |
1742 | if (evsel->pid_stat) { | |
1743 | /* The event exists solely on 1 CPU. */ | |
1744 | if (cpu_map_idx == 0) | |
1745 | err = read_pid_stat_field(fd, system ? 15 : 14, &cur_time); | |
1746 | else | |
1747 | cur_time = 0; | |
1748 | } else { | |
1749 | /* The event is for all threads. */ | |
1750 | if (thread == 0) { | |
1751 | struct perf_cpu cpu = perf_cpu_map__cpu(evsel->core.cpus, | |
1752 | cpu_map_idx); | |
1753 | ||
1754 | err = read_stat_field(fd, cpu, system ? 3 : 1, &cur_time); | |
1755 | } else { | |
1756 | cur_time = 0; | |
1757 | } | |
1758 | } | |
1759 | adjust = true; | |
1760 | break; | |
1761 | } | |
1762 | case PERF_TOOL_NONE: | |
1763 | case PERF_TOOL_MAX: | |
1764 | default: | |
1765 | err = -EINVAL; | |
1766 | } | |
1767 | if (err) | |
1768 | return err; | |
1769 | ||
1770 | delta_start = cur_time - *start_time; | |
1771 | if (adjust) { | |
1772 | __u64 ticks_per_sec = sysconf(_SC_CLK_TCK); | |
1773 | ||
1774 | delta_start *= 1000000000 / ticks_per_sec; | |
1775 | } | |
1776 | count->val = delta_start; | |
1777 | count->ena = count->run = delta_start; | |
1778 | count->lost = 0; | |
1779 | return 0; | |
1780 | } | |
1781 | ||
da8c94c0 | 1782 | int evsel__read_counter(struct evsel *evsel, int cpu_map_idx, int thread) |
f7794d52 | 1783 | { |
6828d692 IR |
1784 | if (evsel__is_tool(evsel)) |
1785 | return evsel__read_tool(evsel, cpu_map_idx, thread); | |
f7794d52 | 1786 | |
6828d692 | 1787 | if (evsel->core.attr.read_format & PERF_FORMAT_GROUP) |
da8c94c0 | 1788 | return evsel__read_group(evsel, cpu_map_idx, thread); |
ea089692 | 1789 | |
da8c94c0 | 1790 | return evsel__read_one(evsel, cpu_map_idx, thread); |
f7794d52 JO |
1791 | } |
1792 | ||
da8c94c0 | 1793 | int __evsel__read_on_cpu(struct evsel *evsel, int cpu_map_idx, int thread, bool scale) |
c52b12ed ACM |
1794 | { |
1795 | struct perf_counts_values count; | |
1796 | size_t nv = scale ? 3 : 1; | |
1797 | ||
da8c94c0 | 1798 | if (FD(evsel, cpu_map_idx, thread) < 0) |
c52b12ed ACM |
1799 | return -EINVAL; |
1800 | ||
2ca0a371 | 1801 | if (evsel->counts == NULL && evsel__alloc_counts(evsel) < 0) |
4eed11d5 ACM |
1802 | return -ENOMEM; |
1803 | ||
da8c94c0 | 1804 | if (readn(FD(evsel, cpu_map_idx, thread), &count, nv * sizeof(u64)) <= 0) |
c52b12ed ACM |
1805 | return -errno; |
1806 | ||
da8c94c0 | 1807 | evsel__compute_deltas(evsel, cpu_map_idx, thread, &count); |
13112bbf | 1808 | perf_counts_values__scale(&count, scale, NULL); |
da8c94c0 | 1809 | *perf_counts(evsel->counts, cpu_map_idx, thread) = count; |
c52b12ed ACM |
1810 | return 0; |
1811 | } | |
1812 | ||
1fcc57b7 | 1813 | static int evsel__match_other_cpu(struct evsel *evsel, struct evsel *other, |
2daa08c4 | 1814 | int cpu_map_idx) |
1fcc57b7 | 1815 | { |
6d18804b | 1816 | struct perf_cpu cpu; |
1fcc57b7 | 1817 | |
2daa08c4 IR |
1818 | cpu = perf_cpu_map__cpu(evsel->core.cpus, cpu_map_idx); |
1819 | return perf_cpu_map__idx(other->core.cpus, cpu); | |
1fcc57b7 JY |
1820 | } |
1821 | ||
2daa08c4 | 1822 | static int evsel__hybrid_group_cpu_map_idx(struct evsel *evsel, int cpu_map_idx) |
1fcc57b7 | 1823 | { |
fba7c866 | 1824 | struct evsel *leader = evsel__leader(evsel); |
1fcc57b7 JY |
1825 | |
1826 | if ((evsel__is_hybrid(evsel) && !evsel__is_hybrid(leader)) || | |
1827 | (!evsel__is_hybrid(evsel) && evsel__is_hybrid(leader))) { | |
2daa08c4 | 1828 | return evsel__match_other_cpu(evsel, leader, cpu_map_idx); |
1fcc57b7 JY |
1829 | } |
1830 | ||
2daa08c4 | 1831 | return cpu_map_idx; |
1fcc57b7 JY |
1832 | } |
1833 | ||
2daa08c4 | 1834 | static int get_group_fd(struct evsel *evsel, int cpu_map_idx, int thread) |
6a4bb04c | 1835 | { |
fba7c866 | 1836 | struct evsel *leader = evsel__leader(evsel); |
6a4bb04c JO |
1837 | int fd; |
1838 | ||
c754c382 | 1839 | if (evsel__is_group_leader(evsel)) |
6a4bb04c JO |
1840 | return -1; |
1841 | ||
1842 | /* | |
1843 | * Leader must be already processed/open, | |
1844 | * if not it's a bug. | |
1845 | */ | |
9dfcb759 | 1846 | BUG_ON(!leader->core.fd); |
6a4bb04c | 1847 | |
2daa08c4 IR |
1848 | cpu_map_idx = evsel__hybrid_group_cpu_map_idx(evsel, cpu_map_idx); |
1849 | if (cpu_map_idx == -1) | |
1fcc57b7 JY |
1850 | return -1; |
1851 | ||
2daa08c4 | 1852 | fd = FD(leader, cpu_map_idx, thread); |
1b114824 | 1853 | BUG_ON(fd == -1 && !leader->skippable); |
6a4bb04c | 1854 | |
1b114824 IR |
1855 | /* |
1856 | * When the leader has been skipped, return -2 to distinguish from no | |
1857 | * group leader case. | |
1858 | */ | |
1859 | return fd == -1 ? -2 : fd; | |
6a4bb04c JO |
1860 | } |
1861 | ||
56933029 | 1862 | static void evsel__remove_fd(struct evsel *pos, int nr_cpus, int nr_threads, int thread_idx) |
ca800068 MZ |
1863 | { |
1864 | for (int cpu = 0; cpu < nr_cpus; cpu++) | |
1865 | for (int thread = thread_idx; thread < nr_threads - 1; thread++) | |
1866 | FD(pos, cpu, thread) = FD(pos, cpu, thread + 1); | |
1867 | } | |
1868 | ||
32dcd021 | 1869 | static int update_fds(struct evsel *evsel, |
6f844b1f | 1870 | int nr_cpus, int cpu_map_idx, |
ca800068 MZ |
1871 | int nr_threads, int thread_idx) |
1872 | { | |
32dcd021 | 1873 | struct evsel *pos; |
ca800068 | 1874 | |
6f844b1f | 1875 | if (cpu_map_idx >= nr_cpus || thread_idx >= nr_threads) |
ca800068 MZ |
1876 | return -EINVAL; |
1877 | ||
1878 | evlist__for_each_entry(evsel->evlist, pos) { | |
6f844b1f | 1879 | nr_cpus = pos != evsel ? nr_cpus : cpu_map_idx; |
ca800068 | 1880 | |
56933029 | 1881 | evsel__remove_fd(pos, nr_cpus, nr_threads, thread_idx); |
ca800068 MZ |
1882 | |
1883 | /* | |
1884 | * Since fds for next evsel has not been created, | |
1885 | * there is no need to iterate whole event list. | |
1886 | */ | |
1887 | if (pos == evsel) | |
1888 | break; | |
1889 | } | |
1890 | return 0; | |
1891 | } | |
1892 | ||
1fa497d4 | 1893 | static bool evsel__ignore_missing_thread(struct evsel *evsel, |
6f844b1f | 1894 | int nr_cpus, int cpu_map_idx, |
1fa497d4 IR |
1895 | struct perf_thread_map *threads, |
1896 | int thread, int err) | |
a359c17a | 1897 | { |
a2f354e3 | 1898 | pid_t ignore_pid = perf_thread_map__pid(threads, thread); |
ca800068 | 1899 | |
a359c17a JO |
1900 | if (!evsel->ignore_missing_thread) |
1901 | return false; | |
1902 | ||
1903 | /* The system wide setup does not work with threads. */ | |
648b5af3 | 1904 | if (evsel->core.system_wide) |
a359c17a JO |
1905 | return false; |
1906 | ||
1907 | /* The -ESRCH is perf event syscall errno for pid's not found. */ | |
1908 | if (err != -ESRCH) | |
1909 | return false; | |
1910 | ||
1911 | /* If there's only one thread, let it fail. */ | |
1912 | if (threads->nr == 1) | |
1913 | return false; | |
1914 | ||
ca800068 MZ |
1915 | /* |
1916 | * We should remove fd for missing_thread first | |
1917 | * because thread_map__remove() will decrease threads->nr. | |
1918 | */ | |
6f844b1f | 1919 | if (update_fds(evsel, nr_cpus, cpu_map_idx, threads->nr, thread)) |
ca800068 MZ |
1920 | return false; |
1921 | ||
a359c17a JO |
1922 | if (thread_map__remove(threads, thread)) |
1923 | return false; | |
1924 | ||
1925 | pr_warning("WARNING: Ignored open failure for pid %d\n", | |
ca800068 | 1926 | ignore_pid); |
a359c17a JO |
1927 | return true; |
1928 | } | |
1929 | ||
ca125277 ACM |
1930 | static int __open_attr__fprintf(FILE *fp, const char *name, const char *val, |
1931 | void *priv __maybe_unused) | |
1932 | { | |
1933 | return fprintf(fp, " %-32s %s\n", name, val); | |
1934 | } | |
1935 | ||
4e8a5c15 JO |
1936 | static void display_attr(struct perf_event_attr *attr) |
1937 | { | |
ccd26741 | 1938 | if (verbose >= 2 || debug_peo_args) { |
4e8a5c15 JO |
1939 | fprintf(stderr, "%.60s\n", graph_dotted_line); |
1940 | fprintf(stderr, "perf_event_attr:\n"); | |
1941 | perf_event_attr__fprintf(stderr, attr, __open_attr__fprintf, NULL); | |
1942 | fprintf(stderr, "%.60s\n", graph_dotted_line); | |
1943 | } | |
1944 | } | |
1945 | ||
28667a52 | 1946 | bool evsel__precise_ip_fallback(struct evsel *evsel) |
4e8a5c15 | 1947 | { |
28667a52 RM |
1948 | /* Do not try less precise if not requested. */ |
1949 | if (!evsel->precise_max) | |
1950 | return false; | |
4e8a5c15 | 1951 | |
28667a52 RM |
1952 | /* |
1953 | * We tried all the precise_ip values, and it's | |
1954 | * still failing, so leave it to standard fallback. | |
1955 | */ | |
1956 | if (!evsel->core.attr.precise_ip) { | |
1957 | evsel->core.attr.precise_ip = evsel->precise_ip_original; | |
1958 | return false; | |
4e8a5c15 JO |
1959 | } |
1960 | ||
28667a52 RM |
1961 | if (!evsel->precise_ip_original) |
1962 | evsel->precise_ip_original = evsel->core.attr.precise_ip; | |
4e8a5c15 | 1963 | |
28667a52 RM |
1964 | evsel->core.attr.precise_ip--; |
1965 | pr_debug2_peo("decreasing precise_ip by one (%d)\n", evsel->core.attr.precise_ip); | |
1966 | display_attr(&evsel->core.attr); | |
1967 | return true; | |
1968 | } | |
d45ce034 RM |
1969 | |
1970 | static struct perf_cpu_map *empty_cpu_map; | |
1971 | static struct perf_thread_map *empty_thread_map; | |
1972 | ||
1973 | static int __evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus, | |
1974 | struct perf_thread_map *threads) | |
48290609 | 1975 | { |
1337b9dc | 1976 | int nthreads = perf_thread_map__nr(threads); |
48290609 | 1977 | |
acb9f2d4 ACM |
1978 | if ((perf_missing_features.write_backward && evsel->core.attr.write_backward) || |
1979 | (perf_missing_features.aux_output && evsel->core.attr.aux_output)) | |
32a951b4 ACM |
1980 | return -EINVAL; |
1981 | ||
c24ae6d9 | 1982 | if (cpus == NULL) { |
c24ae6d9 | 1983 | if (empty_cpu_map == NULL) { |
48219b08 | 1984 | empty_cpu_map = perf_cpu_map__new_any_cpu(); |
c24ae6d9 ACM |
1985 | if (empty_cpu_map == NULL) |
1986 | return -ENOMEM; | |
1987 | } | |
1988 | ||
1989 | cpus = empty_cpu_map; | |
1990 | } | |
1991 | ||
1992 | if (threads == NULL) { | |
c24ae6d9 ACM |
1993 | if (empty_thread_map == NULL) { |
1994 | empty_thread_map = thread_map__new_by_tid(-1); | |
1995 | if (empty_thread_map == NULL) | |
1996 | return -ENOMEM; | |
1997 | } | |
1998 | ||
1999 | threads = empty_thread_map; | |
2000 | } | |
2001 | ||
9dfcb759 | 2002 | if (evsel->core.fd == NULL && |
44028699 | 2003 | perf_evsel__alloc_fd(&evsel->core, perf_cpu_map__nr(cpus), nthreads) < 0) |
727ab04e | 2004 | return -ENOMEM; |
4eed11d5 | 2005 | |
6828d692 IR |
2006 | if ((evsel->tool_event == PERF_TOOL_SYSTEM_TIME || |
2007 | evsel->tool_event == PERF_TOOL_USER_TIME) && | |
2008 | !evsel->start_times) { | |
2009 | evsel->start_times = xyarray__new(perf_cpu_map__nr(cpus), nthreads, sizeof(__u64)); | |
2010 | if (!evsel->start_times) | |
2011 | return -ENOMEM; | |
2012 | } | |
2013 | ||
46def08f RM |
2014 | evsel->open_flags = PERF_FLAG_FD_CLOEXEC; |
2015 | if (evsel->cgrp) | |
2016 | evsel->open_flags |= PERF_FLAG_PID_CGROUP; | |
2017 | ||
d45ce034 RM |
2018 | return 0; |
2019 | } | |
2020 | ||
588f4ac7 | 2021 | static void evsel__disable_missing_features(struct evsel *evsel) |
d45ce034 | 2022 | { |
9fbb4b02 KL |
2023 | if (perf_missing_features.branch_counters) |
2024 | evsel->core.attr.branch_sample_type &= ~PERF_SAMPLE_BRANCH_COUNTERS; | |
e17f343c NK |
2025 | if (perf_missing_features.read_lost) |
2026 | evsel->core.attr.read_format &= ~PERF_FORMAT_LOST; | |
ea8d0ed6 KL |
2027 | if (perf_missing_features.weight_struct) { |
2028 | evsel__set_sample_bit(evsel, WEIGHT); | |
2029 | evsel__reset_sample_bit(evsel, WEIGHT_STRUCT); | |
2030 | } | |
814c8c38 | 2031 | if (perf_missing_features.clockid_wrong) |
1fc632ce | 2032 | evsel->core.attr.clockid = CLOCK_MONOTONIC; /* should always work */ |
814c8c38 | 2033 | if (perf_missing_features.clockid) { |
1fc632ce JO |
2034 | evsel->core.attr.use_clockid = 0; |
2035 | evsel->core.attr.clockid = 0; | |
814c8c38 | 2036 | } |
57480d2c | 2037 | if (perf_missing_features.cloexec) |
46def08f | 2038 | evsel->open_flags &= ~(unsigned long)PERF_FLAG_FD_CLOEXEC; |
5c5e854b | 2039 | if (perf_missing_features.mmap2) |
1fc632ce | 2040 | evsel->core.attr.mmap2 = 0; |
3500eeeb | 2041 | if (evsel->pmu && evsel->pmu->missing_features.exclude_guest) |
1fc632ce | 2042 | evsel->core.attr.exclude_guest = evsel->core.attr.exclude_host = 0; |
bd0f8895 | 2043 | if (perf_missing_features.lbr_flags) |
1fc632ce | 2044 | evsel->core.attr.branch_sample_type &= ~(PERF_SAMPLE_BRANCH_NO_FLAGS | |
bd0f8895 | 2045 | PERF_SAMPLE_BRANCH_NO_CYCLES); |
1fc632ce JO |
2046 | if (perf_missing_features.group_read && evsel->core.attr.inherit) |
2047 | evsel->core.attr.read_format &= ~(PERF_FORMAT_GROUP|PERF_FORMAT_ID); | |
9aa0bfa3 | 2048 | if (perf_missing_features.ksymbol) |
1fc632ce | 2049 | evsel->core.attr.ksymbol = 0; |
74a1e863 | 2050 | if (perf_missing_features.bpf) |
1fc632ce | 2051 | evsel->core.attr.bpf_event = 0; |
d3f85437 KL |
2052 | if (perf_missing_features.branch_hw_idx) |
2053 | evsel->core.attr.branch_sample_type &= ~PERF_SAMPLE_BRANCH_HW_INDEX; | |
594ac61a | 2054 | if (perf_missing_features.sample_id_all) |
1fc632ce | 2055 | evsel->core.attr.sample_id_all = 0; |
588f4ac7 RM |
2056 | } |
2057 | ||
6efd06e3 RM |
2058 | int evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus, |
2059 | struct perf_thread_map *threads) | |
2060 | { | |
2061 | int err; | |
2062 | ||
2063 | err = __evsel__prepare_open(evsel, cpus, threads); | |
2064 | if (err) | |
2065 | return err; | |
2066 | ||
2067 | evsel__disable_missing_features(evsel); | |
2068 | ||
2069 | return err; | |
2070 | } | |
2071 | ||
d21fc5f0 RM |
2072 | bool evsel__detect_missing_features(struct evsel *evsel) |
2073 | { | |
2074 | /* | |
2075 | * Must probe features in the order they were added to the | |
2076 | * perf_event_attr interface. | |
2077 | */ | |
9fbb4b02 KL |
2078 | if (!perf_missing_features.branch_counters && |
2079 | (evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_COUNTERS)) { | |
2080 | perf_missing_features.branch_counters = true; | |
2081 | pr_debug2("switching off branch counters support\n"); | |
2082 | return true; | |
2083 | } else if (!perf_missing_features.read_lost && | |
e17f343c NK |
2084 | (evsel->core.attr.read_format & PERF_FORMAT_LOST)) { |
2085 | perf_missing_features.read_lost = true; | |
2086 | pr_debug2("switching off PERF_FORMAT_LOST support\n"); | |
2087 | return true; | |
2088 | } else if (!perf_missing_features.weight_struct && | |
d21fc5f0 RM |
2089 | (evsel->core.attr.sample_type & PERF_SAMPLE_WEIGHT_STRUCT)) { |
2090 | perf_missing_features.weight_struct = true; | |
2091 | pr_debug2("switching off weight struct support\n"); | |
2092 | return true; | |
2093 | } else if (!perf_missing_features.code_page_size && | |
2094 | (evsel->core.attr.sample_type & PERF_SAMPLE_CODE_PAGE_SIZE)) { | |
2095 | perf_missing_features.code_page_size = true; | |
2096 | pr_debug2_peo("Kernel has no PERF_SAMPLE_CODE_PAGE_SIZE support, bailing out\n"); | |
2097 | return false; | |
2098 | } else if (!perf_missing_features.data_page_size && | |
2099 | (evsel->core.attr.sample_type & PERF_SAMPLE_DATA_PAGE_SIZE)) { | |
2100 | perf_missing_features.data_page_size = true; | |
2101 | pr_debug2_peo("Kernel has no PERF_SAMPLE_DATA_PAGE_SIZE support, bailing out\n"); | |
2102 | return false; | |
2103 | } else if (!perf_missing_features.cgroup && evsel->core.attr.cgroup) { | |
2104 | perf_missing_features.cgroup = true; | |
2105 | pr_debug2_peo("Kernel has no cgroup sampling support, bailing out\n"); | |
2106 | return false; | |
2107 | } else if (!perf_missing_features.branch_hw_idx && | |
2108 | (evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_HW_INDEX)) { | |
2109 | perf_missing_features.branch_hw_idx = true; | |
2110 | pr_debug2("switching off branch HW index support\n"); | |
2111 | return true; | |
2112 | } else if (!perf_missing_features.aux_output && evsel->core.attr.aux_output) { | |
2113 | perf_missing_features.aux_output = true; | |
2114 | pr_debug2_peo("Kernel has no attr.aux_output support, bailing out\n"); | |
2115 | return false; | |
2116 | } else if (!perf_missing_features.bpf && evsel->core.attr.bpf_event) { | |
2117 | perf_missing_features.bpf = true; | |
2118 | pr_debug2_peo("switching off bpf_event\n"); | |
2119 | return true; | |
2120 | } else if (!perf_missing_features.ksymbol && evsel->core.attr.ksymbol) { | |
2121 | perf_missing_features.ksymbol = true; | |
2122 | pr_debug2_peo("switching off ksymbol\n"); | |
2123 | return true; | |
2124 | } else if (!perf_missing_features.write_backward && evsel->core.attr.write_backward) { | |
2125 | perf_missing_features.write_backward = true; | |
2126 | pr_debug2_peo("switching off write_backward\n"); | |
2127 | return false; | |
2128 | } else if (!perf_missing_features.clockid_wrong && evsel->core.attr.use_clockid) { | |
2129 | perf_missing_features.clockid_wrong = true; | |
2130 | pr_debug2_peo("switching off clockid\n"); | |
2131 | return true; | |
2132 | } else if (!perf_missing_features.clockid && evsel->core.attr.use_clockid) { | |
2133 | perf_missing_features.clockid = true; | |
2134 | pr_debug2_peo("switching off use_clockid\n"); | |
2135 | return true; | |
2136 | } else if (!perf_missing_features.cloexec && (evsel->open_flags & PERF_FLAG_FD_CLOEXEC)) { | |
2137 | perf_missing_features.cloexec = true; | |
2138 | pr_debug2_peo("switching off cloexec flag\n"); | |
2139 | return true; | |
2140 | } else if (!perf_missing_features.mmap2 && evsel->core.attr.mmap2) { | |
2141 | perf_missing_features.mmap2 = true; | |
2142 | pr_debug2_peo("switching off mmap2\n"); | |
2143 | return true; | |
f7400262 NK |
2144 | } else if (evsel->core.attr.exclude_guest || evsel->core.attr.exclude_host) { |
2145 | if (evsel->pmu == NULL) | |
3500eeeb | 2146 | evsel->pmu = evsel__find_pmu(evsel); |
f7400262 NK |
2147 | |
2148 | if (evsel->pmu) | |
2149 | evsel->pmu->missing_features.exclude_guest = true; | |
2150 | else { | |
2151 | /* we cannot find PMU, disable attrs now */ | |
2152 | evsel->core.attr.exclude_host = false; | |
2153 | evsel->core.attr.exclude_guest = false; | |
3500eeeb NK |
2154 | } |
2155 | ||
2156 | if (evsel->exclude_GH) { | |
2157 | pr_debug2_peo("PMU has no exclude_host/guest support, bailing out\n"); | |
2158 | return false; | |
2159 | } | |
2160 | if (!perf_missing_features.exclude_guest) { | |
2161 | perf_missing_features.exclude_guest = true; | |
2162 | pr_debug2_peo("switching off exclude_guest, exclude_host\n"); | |
2163 | } | |
d21fc5f0 RM |
2164 | return true; |
2165 | } else if (!perf_missing_features.sample_id_all) { | |
2166 | perf_missing_features.sample_id_all = true; | |
2167 | pr_debug2_peo("switching off sample_id_all\n"); | |
2168 | return true; | |
2169 | } else if (!perf_missing_features.lbr_flags && | |
2170 | (evsel->core.attr.branch_sample_type & | |
2171 | (PERF_SAMPLE_BRANCH_NO_CYCLES | | |
2172 | PERF_SAMPLE_BRANCH_NO_FLAGS))) { | |
2173 | perf_missing_features.lbr_flags = true; | |
2174 | pr_debug2_peo("switching off branch sample type no (cycles/flags)\n"); | |
2175 | return true; | |
2176 | } else if (!perf_missing_features.group_read && | |
2177 | evsel->core.attr.inherit && | |
2178 | (evsel->core.attr.read_format & PERF_FORMAT_GROUP) && | |
2179 | evsel__is_group_leader(evsel)) { | |
2180 | perf_missing_features.group_read = true; | |
2181 | pr_debug2_peo("switching off group read\n"); | |
2182 | return true; | |
2183 | } else { | |
2184 | return false; | |
2185 | } | |
2186 | } | |
2187 | ||
588f4ac7 RM |
2188 | static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, |
2189 | struct perf_thread_map *threads, | |
6f844b1f | 2190 | int start_cpu_map_idx, int end_cpu_map_idx) |
588f4ac7 | 2191 | { |
6f844b1f | 2192 | int idx, thread, nthreads; |
588f4ac7 | 2193 | int pid = -1, err, old_errno; |
71efc48a | 2194 | enum rlimit_action set_rlimit = NO_CHANGE; |
588f4ac7 | 2195 | |
6828d692 IR |
2196 | if (evsel->tool_event == PERF_TOOL_DURATION_TIME) { |
2197 | if (evsel->core.attr.sample_period) /* no sampling */ | |
2198 | return -EINVAL; | |
2199 | evsel->start_time = rdclock(); | |
2200 | return 0; | |
2201 | } | |
2202 | ||
588f4ac7 RM |
2203 | err = __evsel__prepare_open(evsel, cpus, threads); |
2204 | if (err) | |
2205 | return err; | |
2206 | ||
2207 | if (cpus == NULL) | |
2208 | cpus = empty_cpu_map; | |
2209 | ||
2210 | if (threads == NULL) | |
2211 | threads = empty_thread_map; | |
2212 | ||
1337b9dc | 2213 | nthreads = perf_thread_map__nr(threads); |
588f4ac7 RM |
2214 | |
2215 | if (evsel->cgrp) | |
2216 | pid = evsel->cgrp->fd; | |
2217 | ||
2218 | fallback_missing_features: | |
2219 | evsel__disable_missing_features(evsel); | |
594ac61a | 2220 | |
1f4326bf | 2221 | pr_debug3("Opening: %s\n", evsel__name(evsel)); |
1fc632ce | 2222 | display_attr(&evsel->core.attr); |
e3e1a54f | 2223 | |
6f844b1f | 2224 | for (idx = start_cpu_map_idx; idx < end_cpu_map_idx; idx++) { |
9d04f178 | 2225 | |
bf8e8f4b | 2226 | for (thread = 0; thread < nthreads; thread++) { |
83c2e4f3 | 2227 | int fd, group_fd; |
da7c3b46 RM |
2228 | retry_open: |
2229 | if (thread >= nthreads) | |
2230 | break; | |
023695d9 | 2231 | |
648b5af3 | 2232 | if (!evsel->cgrp && !evsel->core.system_wide) |
a2f354e3 | 2233 | pid = perf_thread_map__pid(threads, thread); |
023695d9 | 2234 | |
6828d692 IR |
2235 | if (evsel->tool_event == PERF_TOOL_USER_TIME || |
2236 | evsel->tool_event == PERF_TOOL_SYSTEM_TIME) { | |
2237 | bool system = evsel->tool_event == PERF_TOOL_SYSTEM_TIME; | |
2238 | __u64 *start_time = NULL; | |
2239 | ||
2240 | if (evsel->core.attr.sample_period) { | |
2241 | /* no sampling */ | |
2242 | err = -EINVAL; | |
2243 | goto out_close; | |
2244 | } | |
2245 | if (pid > -1) { | |
2246 | char buf[64]; | |
2247 | ||
2248 | snprintf(buf, sizeof(buf), "/proc/%d/stat", pid); | |
2249 | fd = open(buf, O_RDONLY); | |
2250 | evsel->pid_stat = true; | |
2251 | } else { | |
2252 | fd = open("/proc/stat", O_RDONLY); | |
2253 | } | |
2254 | FD(evsel, idx, thread) = fd; | |
2255 | if (fd < 0) { | |
2256 | err = -errno; | |
2257 | goto out_close; | |
2258 | } | |
2259 | start_time = xyarray__entry(evsel->start_times, idx, thread); | |
2260 | if (pid > -1) { | |
2261 | err = read_pid_stat_field(fd, system ? 15 : 14, | |
2262 | start_time); | |
2263 | } else { | |
2264 | struct perf_cpu cpu; | |
2265 | ||
2266 | cpu = perf_cpu_map__cpu(evsel->core.cpus, idx); | |
2267 | err = read_stat_field(fd, cpu, system ? 3 : 1, | |
2268 | start_time); | |
2269 | } | |
2270 | if (err) | |
2271 | goto out_close; | |
2272 | continue; | |
2273 | } | |
2274 | ||
6f844b1f | 2275 | group_fd = get_group_fd(evsel, idx, thread); |
da7c3b46 | 2276 | |
1b114824 IR |
2277 | if (group_fd == -2) { |
2278 | pr_debug("broken group leader for %s\n", evsel->name); | |
2279 | err = -EINVAL; | |
2280 | goto out_close; | |
2281 | } | |
2282 | ||
10213e2f JO |
2283 | test_attr__ready(); |
2284 | ||
da406202 | 2285 | /* Debug message used by test scripts */ |
28667a52 | 2286 | pr_debug2_peo("sys_perf_event_open: pid %d cpu %d group_fd %d flags %#lx", |
44028699 | 2287 | pid, perf_cpu_map__cpu(cpus, idx).cpu, group_fd, evsel->open_flags); |
28667a52 | 2288 | |
44028699 IR |
2289 | fd = sys_perf_event_open(&evsel->core.attr, pid, |
2290 | perf_cpu_map__cpu(cpus, idx).cpu, | |
28667a52 | 2291 | group_fd, evsel->open_flags); |
83c2e4f3 | 2292 | |
6f844b1f | 2293 | FD(evsel, idx, thread) = fd; |
83c2e4f3 JO |
2294 | |
2295 | if (fd < 0) { | |
727ab04e | 2296 | err = -errno; |
a359c17a | 2297 | |
ccd26741 | 2298 | pr_debug2_peo("\nsys_perf_event_open failed, error %d\n", |
f852fd62 | 2299 | err); |
594ac61a | 2300 | goto try_fallback; |
727ab04e | 2301 | } |
1f45b1d4 | 2302 | |
6f844b1f | 2303 | bpf_counter__install_pe(evsel, idx, fd); |
91233d00 | 2304 | |
ebfb045a | 2305 | if (unlikely(test_attr__enabled)) { |
44028699 IR |
2306 | test_attr__open(&evsel->core.attr, pid, |
2307 | perf_cpu_map__cpu(cpus, idx), | |
ebfb045a RM |
2308 | fd, group_fd, evsel->open_flags); |
2309 | } | |
2310 | ||
da406202 | 2311 | /* Debug message used by test scripts */ |
ccd26741 | 2312 | pr_debug2_peo(" = %d\n", fd); |
7b4b82bc | 2313 | |
1f45b1d4 | 2314 | if (evsel->bpf_fd >= 0) { |
83c2e4f3 | 2315 | int evt_fd = fd; |
1f45b1d4 WN |
2316 | int bpf_fd = evsel->bpf_fd; |
2317 | ||
2318 | err = ioctl(evt_fd, | |
2319 | PERF_EVENT_IOC_SET_BPF, | |
2320 | bpf_fd); | |
2321 | if (err && errno != EEXIST) { | |
2322 | pr_err("failed to attach bpf fd %d: %s\n", | |
2323 | bpf_fd, strerror(errno)); | |
2324 | err = -EINVAL; | |
2325 | goto out_close; | |
2326 | } | |
2327 | } | |
2328 | ||
bec19672 | 2329 | set_rlimit = NO_CHANGE; |
814c8c38 PZ |
2330 | |
2331 | /* | |
2332 | * If we succeeded but had to kill clockid, fail and | |
2bb72dbb | 2333 | * have evsel__open_strerror() print us a nice error. |
814c8c38 PZ |
2334 | */ |
2335 | if (perf_missing_features.clockid || | |
2336 | perf_missing_features.clockid_wrong) { | |
2337 | err = -EINVAL; | |
2338 | goto out_close; | |
2339 | } | |
0252208e | 2340 | } |
48290609 ACM |
2341 | } |
2342 | ||
2343 | return 0; | |
2344 | ||
594ac61a | 2345 | try_fallback: |
28667a52 RM |
2346 | if (evsel__precise_ip_fallback(evsel)) |
2347 | goto retry_open; | |
2348 | ||
44028699 IR |
2349 | if (evsel__ignore_missing_thread(evsel, perf_cpu_map__nr(cpus), |
2350 | idx, threads, thread, err)) { | |
da7c3b46 RM |
2351 | /* We just removed 1 thread, so lower the upper nthreads limit. */ |
2352 | nthreads--; | |
2353 | ||
2354 | /* ... and pretend like nothing have happened. */ | |
2355 | err = 0; | |
2356 | goto retry_open; | |
2357 | } | |
bec19672 AK |
2358 | /* |
2359 | * perf stat needs between 5 and 22 fds per CPU. When we run out | |
2360 | * of them try to increase the limits. | |
2361 | */ | |
e093a222 | 2362 | if (err == -EMFILE && rlimit__increase_nofile(&set_rlimit)) |
71efc48a | 2363 | goto retry_open; |
bec19672 | 2364 | |
6f844b1f | 2365 | if (err != -EINVAL || idx > 0 || thread > 0) |
594ac61a ACM |
2366 | goto out_close; |
2367 | ||
d21fc5f0 | 2368 | if (evsel__detect_missing_features(evsel)) |
9aa0bfa3 | 2369 | goto fallback_missing_features; |
48290609 | 2370 | out_close: |
ab6c79b8 JY |
2371 | if (err) |
2372 | threads->err_thread = thread; | |
2373 | ||
796c01a4 | 2374 | old_errno = errno; |
0252208e ACM |
2375 | do { |
2376 | while (--thread >= 0) { | |
6f844b1f IR |
2377 | if (FD(evsel, idx, thread) >= 0) |
2378 | close(FD(evsel, idx, thread)); | |
2379 | FD(evsel, idx, thread) = -1; | |
0252208e | 2380 | } |
bf8e8f4b | 2381 | thread = nthreads; |
6f844b1f | 2382 | } while (--idx >= 0); |
796c01a4 | 2383 | errno = old_errno; |
727ab04e ACM |
2384 | return err; |
2385 | } | |
2386 | ||
4804e011 AK |
2387 | int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus, |
2388 | struct perf_thread_map *threads) | |
2389 | { | |
44028699 | 2390 | return evsel__open_cpu(evsel, cpus, threads, 0, perf_cpu_map__nr(cpus)); |
4804e011 AK |
2391 | } |
2392 | ||
88761fa1 | 2393 | void evsel__close(struct evsel *evsel) |
727ab04e | 2394 | { |
88761fa1 | 2395 | perf_evsel__close(&evsel->core); |
70c20369 | 2396 | perf_evsel__free_id(&evsel->core); |
48290609 ACM |
2397 | } |
2398 | ||
6f844b1f | 2399 | int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu_map_idx) |
48290609 | 2400 | { |
6f844b1f | 2401 | if (cpu_map_idx == -1) |
44028699 | 2402 | return evsel__open_cpu(evsel, cpus, NULL, 0, perf_cpu_map__nr(cpus)); |
4804e011 | 2403 | |
6f844b1f | 2404 | return evsel__open_cpu(evsel, cpus, NULL, cpu_map_idx, cpu_map_idx + 1); |
0252208e | 2405 | } |
48290609 | 2406 | |
aa8c406b | 2407 | int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads) |
0252208e | 2408 | { |
5972d1e0 | 2409 | return evsel__open(evsel, NULL, threads); |
48290609 | 2410 | } |
70082dd9 | 2411 | |
32dcd021 | 2412 | static int perf_evsel__parse_id_sample(const struct evsel *evsel, |
0807d2d8 ACM |
2413 | const union perf_event *event, |
2414 | struct perf_sample *sample) | |
d0dd74e8 | 2415 | { |
1fc632ce | 2416 | u64 type = evsel->core.attr.sample_type; |
b1fcd190 | 2417 | const __u64 *array = event->sample.array; |
0807d2d8 | 2418 | bool swapped = evsel->needs_swap; |
37073f9e | 2419 | union u64_swap u; |
d0dd74e8 ACM |
2420 | |
2421 | array += ((event->header.size - | |
2422 | sizeof(event->header)) / sizeof(u64)) - 1; | |
2423 | ||
75562573 AH |
2424 | if (type & PERF_SAMPLE_IDENTIFIER) { |
2425 | sample->id = *array; | |
2426 | array--; | |
2427 | } | |
2428 | ||
d0dd74e8 | 2429 | if (type & PERF_SAMPLE_CPU) { |
37073f9e JO |
2430 | u.val64 = *array; |
2431 | if (swapped) { | |
2432 | /* undo swap of u64, then swap on individual u32s */ | |
2433 | u.val64 = bswap_64(u.val64); | |
2434 | u.val32[0] = bswap_32(u.val32[0]); | |
2435 | } | |
2436 | ||
2437 | sample->cpu = u.val32[0]; | |
d0dd74e8 ACM |
2438 | array--; |
2439 | } | |
2440 | ||
2441 | if (type & PERF_SAMPLE_STREAM_ID) { | |
2442 | sample->stream_id = *array; | |
2443 | array--; | |
2444 | } | |
2445 | ||
2446 | if (type & PERF_SAMPLE_ID) { | |
2447 | sample->id = *array; | |
2448 | array--; | |
2449 | } | |
2450 | ||
2451 | if (type & PERF_SAMPLE_TIME) { | |
2452 | sample->time = *array; | |
2453 | array--; | |
2454 | } | |
2455 | ||
2456 | if (type & PERF_SAMPLE_TID) { | |
37073f9e JO |
2457 | u.val64 = *array; |
2458 | if (swapped) { | |
2459 | /* undo swap of u64, then swap on individual u32s */ | |
2460 | u.val64 = bswap_64(u.val64); | |
2461 | u.val32[0] = bswap_32(u.val32[0]); | |
2462 | u.val32[1] = bswap_32(u.val32[1]); | |
2463 | } | |
2464 | ||
2465 | sample->pid = u.val32[0]; | |
2466 | sample->tid = u.val32[1]; | |
dd44bc6b | 2467 | array--; |
d0dd74e8 ACM |
2468 | } |
2469 | ||
2470 | return 0; | |
2471 | } | |
2472 | ||
03b6ea9b AH |
2473 | static inline bool overflow(const void *endp, u16 max_size, const void *offset, |
2474 | u64 size) | |
98e1da90 | 2475 | { |
03b6ea9b AH |
2476 | return size > max_size || offset + size > endp; |
2477 | } | |
98e1da90 | 2478 | |
03b6ea9b AH |
2479 | #define OVERFLOW_CHECK(offset, size, max_size) \ |
2480 | do { \ | |
2481 | if (overflow(endp, (max_size), (offset), (size))) \ | |
2482 | return -EFAULT; \ | |
2483 | } while (0) | |
98e1da90 | 2484 | |
03b6ea9b AH |
2485 | #define OVERFLOW_CHECK_u64(offset) \ |
2486 | OVERFLOW_CHECK(offset, sizeof(u64), sizeof(u64)) | |
98e1da90 | 2487 | |
01468120 JO |
2488 | static int |
2489 | perf_event__check_size(union perf_event *event, unsigned int sample_size) | |
2490 | { | |
2491 | /* | |
2492 | * The evsel's sample_size is based on PERF_SAMPLE_MASK which includes | |
2493 | * up to PERF_SAMPLE_PERIOD. After that overflow() must be used to | |
2494 | * check the format does not go past the end of the event. | |
2495 | */ | |
2496 | if (sample_size + sizeof(event->header) > event->header.size) | |
2497 | return -EFAULT; | |
2498 | ||
2499 | return 0; | |
2500 | } | |
2501 | ||
fbefe9c2 KL |
2502 | void __weak arch_perf_parse_sample_weight(struct perf_sample *data, |
2503 | const __u64 *array, | |
2504 | u64 type __maybe_unused) | |
2505 | { | |
2506 | data->weight = *array; | |
2507 | } | |
2508 | ||
63c12ae2 MS |
2509 | u64 evsel__bitfield_swap_branch_flags(u64 value) |
2510 | { | |
2511 | u64 new_val = 0; | |
2512 | ||
2513 | /* | |
2514 | * branch_flags | |
2515 | * union { | |
2516 | * u64 values; | |
2517 | * struct { | |
2518 | * mispred:1 //target mispredicted | |
2519 | * predicted:1 //target predicted | |
2520 | * in_tx:1 //in transaction | |
2521 | * abort:1 //transaction abort | |
2522 | * cycles:16 //cycle count to last branch | |
2523 | * type:4 //branch type | |
6ade6c64 SD |
2524 | * spec:2 //branch speculation info |
2525 | * new_type:4 //additional branch type | |
2526 | * priv:3 //privilege level | |
2527 | * reserved:31 | |
63c12ae2 MS |
2528 | * } |
2529 | * } | |
2530 | * | |
2531 | * Avoid bswap64() the entire branch_flag.value, | |
2532 | * as it has variable bit-field sizes. Instead the | |
2533 | * macro takes the bit-field position/size, | |
2534 | * swaps it based on the host endianness. | |
63c12ae2 | 2535 | */ |
5b7a29fb | 2536 | if (host_is_bigendian()) { |
63c12ae2 MS |
2537 | new_val = bitfield_swap(value, 0, 1); |
2538 | new_val |= bitfield_swap(value, 1, 1); | |
2539 | new_val |= bitfield_swap(value, 2, 1); | |
2540 | new_val |= bitfield_swap(value, 3, 1); | |
2541 | new_val |= bitfield_swap(value, 4, 16); | |
2542 | new_val |= bitfield_swap(value, 20, 4); | |
6ade6c64 SD |
2543 | new_val |= bitfield_swap(value, 24, 2); |
2544 | new_val |= bitfield_swap(value, 26, 4); | |
2545 | new_val |= bitfield_swap(value, 30, 3); | |
2546 | new_val |= bitfield_swap(value, 33, 31); | |
63c12ae2 MS |
2547 | } else { |
2548 | new_val = bitfield_swap(value, 63, 1); | |
2549 | new_val |= bitfield_swap(value, 62, 1); | |
2550 | new_val |= bitfield_swap(value, 61, 1); | |
2551 | new_val |= bitfield_swap(value, 60, 1); | |
2552 | new_val |= bitfield_swap(value, 44, 16); | |
2553 | new_val |= bitfield_swap(value, 40, 4); | |
6ade6c64 SD |
2554 | new_val |= bitfield_swap(value, 38, 2); |
2555 | new_val |= bitfield_swap(value, 34, 4); | |
2556 | new_val |= bitfield_swap(value, 31, 3); | |
2557 | new_val |= bitfield_swap(value, 0, 31); | |
63c12ae2 MS |
2558 | } |
2559 | ||
2560 | return new_val; | |
2561 | } | |
2562 | ||
9fbb4b02 KL |
2563 | static inline bool evsel__has_branch_counters(const struct evsel *evsel) |
2564 | { | |
2565 | struct evsel *cur, *leader = evsel__leader(evsel); | |
2566 | ||
2567 | /* The branch counters feature only supports group */ | |
2568 | if (!leader || !evsel->evlist) | |
2569 | return false; | |
2570 | ||
2571 | evlist__for_each_entry(evsel->evlist, cur) { | |
2572 | if ((leader == evsel__leader(cur)) && | |
2573 | (cur->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_COUNTERS)) | |
2574 | return true; | |
2575 | } | |
2576 | return false; | |
2577 | } | |
2578 | ||
6b6017a2 ACM |
2579 | int evsel__parse_sample(struct evsel *evsel, union perf_event *event, |
2580 | struct perf_sample *data) | |
d0dd74e8 | 2581 | { |
1fc632ce | 2582 | u64 type = evsel->core.attr.sample_type; |
0807d2d8 | 2583 | bool swapped = evsel->needs_swap; |
b1fcd190 | 2584 | const __u64 *array; |
03b6ea9b AH |
2585 | u16 max_size = event->header.size; |
2586 | const void *endp = (void *)event + max_size; | |
2587 | u64 sz; | |
d0dd74e8 | 2588 | |
936be503 DA |
2589 | /* |
2590 | * used for cross-endian analysis. See git commit 65014ab3 | |
2591 | * for why this goofiness is needed. | |
2592 | */ | |
6a11f92e | 2593 | union u64_swap u; |
936be503 | 2594 | |
f3bda2c9 | 2595 | memset(data, 0, sizeof(*data)); |
d0dd74e8 ACM |
2596 | data->cpu = data->pid = data->tid = -1; |
2597 | data->stream_id = data->id = data->time = -1ULL; | |
1fc632ce | 2598 | data->period = evsel->core.attr.sample_period; |
473398a2 | 2599 | data->cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
28a0b398 | 2600 | data->misc = event->header.misc; |
3ad31d8a | 2601 | data->data_src = PERF_MEM_DATA_SRC_NONE; |
3461b65d | 2602 | data->vcpu = -1; |
d0dd74e8 ACM |
2603 | |
2604 | if (event->header.type != PERF_RECORD_SAMPLE) { | |
1fc632ce | 2605 | if (!evsel->core.attr.sample_id_all) |
d0dd74e8 | 2606 | return 0; |
0807d2d8 | 2607 | return perf_evsel__parse_id_sample(evsel, event, data); |
d0dd74e8 ACM |
2608 | } |
2609 | ||
2610 | array = event->sample.array; | |
2611 | ||
01468120 | 2612 | if (perf_event__check_size(event, evsel->sample_size)) |
a2854124 FW |
2613 | return -EFAULT; |
2614 | ||
75562573 AH |
2615 | if (type & PERF_SAMPLE_IDENTIFIER) { |
2616 | data->id = *array; | |
2617 | array++; | |
2618 | } | |
2619 | ||
d0dd74e8 | 2620 | if (type & PERF_SAMPLE_IP) { |
ef89325f | 2621 | data->ip = *array; |
d0dd74e8 ACM |
2622 | array++; |
2623 | } | |
2624 | ||
2625 | if (type & PERF_SAMPLE_TID) { | |
936be503 DA |
2626 | u.val64 = *array; |
2627 | if (swapped) { | |
2628 | /* undo swap of u64, then swap on individual u32s */ | |
2629 | u.val64 = bswap_64(u.val64); | |
2630 | u.val32[0] = bswap_32(u.val32[0]); | |
2631 | u.val32[1] = bswap_32(u.val32[1]); | |
2632 | } | |
2633 | ||
2634 | data->pid = u.val32[0]; | |
2635 | data->tid = u.val32[1]; | |
d0dd74e8 ACM |
2636 | array++; |
2637 | } | |
2638 | ||
2639 | if (type & PERF_SAMPLE_TIME) { | |
2640 | data->time = *array; | |
2641 | array++; | |
2642 | } | |
2643 | ||
2644 | if (type & PERF_SAMPLE_ADDR) { | |
2645 | data->addr = *array; | |
2646 | array++; | |
2647 | } | |
2648 | ||
d0dd74e8 ACM |
2649 | if (type & PERF_SAMPLE_ID) { |
2650 | data->id = *array; | |
2651 | array++; | |
2652 | } | |
2653 | ||
2654 | if (type & PERF_SAMPLE_STREAM_ID) { | |
2655 | data->stream_id = *array; | |
2656 | array++; | |
2657 | } | |
2658 | ||
2659 | if (type & PERF_SAMPLE_CPU) { | |
936be503 DA |
2660 | |
2661 | u.val64 = *array; | |
2662 | if (swapped) { | |
2663 | /* undo swap of u64, then swap on individual u32s */ | |
2664 | u.val64 = bswap_64(u.val64); | |
2665 | u.val32[0] = bswap_32(u.val32[0]); | |
2666 | } | |
2667 | ||
2668 | data->cpu = u.val32[0]; | |
d0dd74e8 ACM |
2669 | array++; |
2670 | } | |
2671 | ||
2672 | if (type & PERF_SAMPLE_PERIOD) { | |
2673 | data->period = *array; | |
2674 | array++; | |
2675 | } | |
2676 | ||
2677 | if (type & PERF_SAMPLE_READ) { | |
1fc632ce | 2678 | u64 read_format = evsel->core.attr.read_format; |
9ede473c | 2679 | |
03b6ea9b | 2680 | OVERFLOW_CHECK_u64(array); |
9ede473c JO |
2681 | if (read_format & PERF_FORMAT_GROUP) |
2682 | data->read.group.nr = *array; | |
2683 | else | |
2684 | data->read.one.value = *array; | |
2685 | ||
2686 | array++; | |
2687 | ||
2688 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { | |
03b6ea9b | 2689 | OVERFLOW_CHECK_u64(array); |
9ede473c JO |
2690 | data->read.time_enabled = *array; |
2691 | array++; | |
2692 | } | |
2693 | ||
2694 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { | |
03b6ea9b | 2695 | OVERFLOW_CHECK_u64(array); |
9ede473c JO |
2696 | data->read.time_running = *array; |
2697 | array++; | |
2698 | } | |
2699 | ||
2700 | /* PERF_FORMAT_ID is forced for PERF_SAMPLE_READ */ | |
2701 | if (read_format & PERF_FORMAT_GROUP) { | |
03b6ea9b AH |
2702 | const u64 max_group_nr = UINT64_MAX / |
2703 | sizeof(struct sample_read_value); | |
2704 | ||
2705 | if (data->read.group.nr > max_group_nr) | |
2706 | return -EFAULT; | |
f52679b7 NK |
2707 | |
2708 | sz = data->read.group.nr * sample_read_value_size(read_format); | |
03b6ea9b AH |
2709 | OVERFLOW_CHECK(array, sz, max_size); |
2710 | data->read.group.values = | |
2711 | (struct sample_read_value *)array; | |
2712 | array = (void *)array + sz; | |
9ede473c | 2713 | } else { |
03b6ea9b | 2714 | OVERFLOW_CHECK_u64(array); |
9ede473c JO |
2715 | data->read.one.id = *array; |
2716 | array++; | |
f52679b7 NK |
2717 | |
2718 | if (read_format & PERF_FORMAT_LOST) { | |
2719 | OVERFLOW_CHECK_u64(array); | |
2720 | data->read.one.lost = *array; | |
2721 | array++; | |
2722 | } | |
9ede473c | 2723 | } |
d0dd74e8 ACM |
2724 | } |
2725 | ||
8e94b324 | 2726 | if (type & PERF_SAMPLE_CALLCHAIN) { |
03b6ea9b | 2727 | const u64 max_callchain_nr = UINT64_MAX / sizeof(u64); |
98e1da90 | 2728 | |
03b6ea9b AH |
2729 | OVERFLOW_CHECK_u64(array); |
2730 | data->callchain = (struct ip_callchain *)array++; | |
2731 | if (data->callchain->nr > max_callchain_nr) | |
98e1da90 | 2732 | return -EFAULT; |
03b6ea9b AH |
2733 | sz = data->callchain->nr * sizeof(u64); |
2734 | OVERFLOW_CHECK(array, sz, max_size); | |
2735 | array = (void *)array + sz; | |
d0dd74e8 ACM |
2736 | } |
2737 | ||
2738 | if (type & PERF_SAMPLE_RAW) { | |
03b6ea9b | 2739 | OVERFLOW_CHECK_u64(array); |
936be503 | 2740 | u.val64 = *array; |
f9d8adb3 JO |
2741 | |
2742 | /* | |
2743 | * Undo swap of u64, then swap on individual u32s, | |
2744 | * get the size of the raw area and undo all of the | |
4d39c89f | 2745 | * swap. The pevent interface handles endianness by |
f9d8adb3 JO |
2746 | * itself. |
2747 | */ | |
2748 | if (swapped) { | |
936be503 DA |
2749 | u.val64 = bswap_64(u.val64); |
2750 | u.val32[0] = bswap_32(u.val32[0]); | |
2751 | u.val32[1] = bswap_32(u.val32[1]); | |
2752 | } | |
936be503 | 2753 | data->raw_size = u.val32[0]; |
f9d8adb3 JO |
2754 | |
2755 | /* | |
2756 | * The raw data is aligned on 64bits including the | |
2757 | * u32 size, so it's safe to use mem_bswap_64. | |
2758 | */ | |
2759 | if (swapped) | |
2760 | mem_bswap_64((void *) array, data->raw_size); | |
2761 | ||
03b6ea9b | 2762 | array = (void *)array + sizeof(u32); |
98e1da90 | 2763 | |
03b6ea9b AH |
2764 | OVERFLOW_CHECK(array, data->raw_size, max_size); |
2765 | data->raw_data = (void *)array; | |
2766 | array = (void *)array + data->raw_size; | |
d0dd74e8 ACM |
2767 | } |
2768 | ||
b5387528 | 2769 | if (type & PERF_SAMPLE_BRANCH_STACK) { |
03b6ea9b AH |
2770 | const u64 max_branch_nr = UINT64_MAX / |
2771 | sizeof(struct branch_entry); | |
63c12ae2 MS |
2772 | struct branch_entry *e; |
2773 | unsigned int i; | |
b5387528 | 2774 | |
03b6ea9b AH |
2775 | OVERFLOW_CHECK_u64(array); |
2776 | data->branch_stack = (struct branch_stack *)array++; | |
b5387528 | 2777 | |
03b6ea9b AH |
2778 | if (data->branch_stack->nr > max_branch_nr) |
2779 | return -EFAULT; | |
42bbabed | 2780 | |
b5387528 | 2781 | sz = data->branch_stack->nr * sizeof(struct branch_entry); |
63c12ae2 | 2782 | if (evsel__has_branch_hw_idx(evsel)) { |
42bbabed | 2783 | sz += sizeof(u64); |
63c12ae2 MS |
2784 | e = &data->branch_stack->entries[0]; |
2785 | } else { | |
42bbabed | 2786 | data->no_hw_idx = true; |
63c12ae2 MS |
2787 | /* |
2788 | * if the PERF_SAMPLE_BRANCH_HW_INDEX is not applied, | |
2789 | * only nr and entries[] will be output by kernel. | |
2790 | */ | |
2791 | e = (struct branch_entry *)&data->branch_stack->hw_idx; | |
2792 | } | |
2793 | ||
2794 | if (swapped) { | |
2795 | /* | |
2796 | * struct branch_flag does not have endian | |
2797 | * specific bit field definition. And bswap | |
2798 | * will not resolve the issue, since these | |
2799 | * are bit fields. | |
2800 | * | |
2801 | * evsel__bitfield_swap_branch_flags() uses a | |
2802 | * bitfield_swap macro to swap the bit position | |
2803 | * based on the host endians. | |
2804 | */ | |
2805 | for (i = 0; i < data->branch_stack->nr; i++, e++) | |
2806 | e->flags.value = evsel__bitfield_swap_branch_flags(e->flags.value); | |
2807 | } | |
2808 | ||
03b6ea9b AH |
2809 | OVERFLOW_CHECK(array, sz, max_size); |
2810 | array = (void *)array + sz; | |
9fbb4b02 KL |
2811 | |
2812 | if (evsel__has_branch_counters(evsel)) { | |
2813 | OVERFLOW_CHECK_u64(array); | |
2814 | ||
2815 | data->branch_stack_cntr = (u64 *)array; | |
2816 | sz = data->branch_stack->nr * sizeof(u64); | |
2817 | ||
2818 | OVERFLOW_CHECK(array, sz, max_size); | |
2819 | array = (void *)array + sz; | |
2820 | } | |
b5387528 | 2821 | } |
0f6a3015 JO |
2822 | |
2823 | if (type & PERF_SAMPLE_REGS_USER) { | |
03b6ea9b | 2824 | OVERFLOW_CHECK_u64(array); |
5b95a4a3 AH |
2825 | data->user_regs.abi = *array; |
2826 | array++; | |
0f6a3015 | 2827 | |
5b95a4a3 | 2828 | if (data->user_regs.abi) { |
1fc632ce | 2829 | u64 mask = evsel->core.attr.sample_regs_user; |
03b6ea9b | 2830 | |
3a5b64f0 | 2831 | sz = hweight64(mask) * sizeof(u64); |
03b6ea9b | 2832 | OVERFLOW_CHECK(array, sz, max_size); |
352ea45a | 2833 | data->user_regs.mask = mask; |
0f6a3015 | 2834 | data->user_regs.regs = (u64 *)array; |
03b6ea9b | 2835 | array = (void *)array + sz; |
0f6a3015 JO |
2836 | } |
2837 | } | |
2838 | ||
2839 | if (type & PERF_SAMPLE_STACK_USER) { | |
03b6ea9b AH |
2840 | OVERFLOW_CHECK_u64(array); |
2841 | sz = *array++; | |
0f6a3015 JO |
2842 | |
2843 | data->user_stack.offset = ((char *)(array - 1) | |
2844 | - (char *) event); | |
2845 | ||
03b6ea9b | 2846 | if (!sz) { |
0f6a3015 JO |
2847 | data->user_stack.size = 0; |
2848 | } else { | |
03b6ea9b | 2849 | OVERFLOW_CHECK(array, sz, max_size); |
0f6a3015 | 2850 | data->user_stack.data = (char *)array; |
03b6ea9b AH |
2851 | array = (void *)array + sz; |
2852 | OVERFLOW_CHECK_u64(array); | |
54bd2692 | 2853 | data->user_stack.size = *array++; |
a65cb4b9 JO |
2854 | if (WARN_ONCE(data->user_stack.size > sz, |
2855 | "user stack dump failure\n")) | |
2856 | return -EFAULT; | |
0f6a3015 JO |
2857 | } |
2858 | } | |
2859 | ||
ea8d0ed6 | 2860 | if (type & PERF_SAMPLE_WEIGHT_TYPE) { |
03b6ea9b | 2861 | OVERFLOW_CHECK_u64(array); |
fbefe9c2 | 2862 | arch_perf_parse_sample_weight(data, array, type); |
05484298 AK |
2863 | array++; |
2864 | } | |
2865 | ||
98a3b32c | 2866 | if (type & PERF_SAMPLE_DATA_SRC) { |
03b6ea9b | 2867 | OVERFLOW_CHECK_u64(array); |
98a3b32c SE |
2868 | data->data_src = *array; |
2869 | array++; | |
2870 | } | |
2871 | ||
475eeab9 | 2872 | if (type & PERF_SAMPLE_TRANSACTION) { |
87b95524 | 2873 | OVERFLOW_CHECK_u64(array); |
475eeab9 AK |
2874 | data->transaction = *array; |
2875 | array++; | |
2876 | } | |
2877 | ||
6a21c0b5 SE |
2878 | data->intr_regs.abi = PERF_SAMPLE_REGS_ABI_NONE; |
2879 | if (type & PERF_SAMPLE_REGS_INTR) { | |
2880 | OVERFLOW_CHECK_u64(array); | |
2881 | data->intr_regs.abi = *array; | |
2882 | array++; | |
2883 | ||
2884 | if (data->intr_regs.abi != PERF_SAMPLE_REGS_ABI_NONE) { | |
1fc632ce | 2885 | u64 mask = evsel->core.attr.sample_regs_intr; |
6a21c0b5 | 2886 | |
3a5b64f0 | 2887 | sz = hweight64(mask) * sizeof(u64); |
6a21c0b5 SE |
2888 | OVERFLOW_CHECK(array, sz, max_size); |
2889 | data->intr_regs.mask = mask; | |
2890 | data->intr_regs.regs = (u64 *)array; | |
2891 | array = (void *)array + sz; | |
2892 | } | |
2893 | } | |
2894 | ||
3b0a5daa KL |
2895 | data->phys_addr = 0; |
2896 | if (type & PERF_SAMPLE_PHYS_ADDR) { | |
2897 | data->phys_addr = *array; | |
2898 | array++; | |
2899 | } | |
2900 | ||
ba78c1c5 NK |
2901 | data->cgroup = 0; |
2902 | if (type & PERF_SAMPLE_CGROUP) { | |
2903 | data->cgroup = *array; | |
2904 | array++; | |
2905 | } | |
2906 | ||
542b88fd KL |
2907 | data->data_page_size = 0; |
2908 | if (type & PERF_SAMPLE_DATA_PAGE_SIZE) { | |
2909 | data->data_page_size = *array; | |
2910 | array++; | |
2911 | } | |
2912 | ||
c1de7f3d KL |
2913 | data->code_page_size = 0; |
2914 | if (type & PERF_SAMPLE_CODE_PAGE_SIZE) { | |
2915 | data->code_page_size = *array; | |
2916 | array++; | |
2917 | } | |
2918 | ||
98dcf14d AH |
2919 | if (type & PERF_SAMPLE_AUX) { |
2920 | OVERFLOW_CHECK_u64(array); | |
2921 | sz = *array++; | |
2922 | ||
2923 | OVERFLOW_CHECK(array, sz, max_size); | |
2924 | /* Undo swap of data */ | |
2925 | if (swapped) | |
2926 | mem_bswap_64((char *)array, sz); | |
2927 | data->aux_sample.size = sz; | |
2928 | data->aux_sample.data = (char *)array; | |
2929 | array = (void *)array + sz; | |
2930 | } | |
2931 | ||
d0dd74e8 ACM |
2932 | return 0; |
2933 | } | |
74eec26f | 2934 | |
6b6017a2 ACM |
2935 | int evsel__parse_sample_timestamp(struct evsel *evsel, union perf_event *event, |
2936 | u64 *timestamp) | |
01468120 | 2937 | { |
1fc632ce | 2938 | u64 type = evsel->core.attr.sample_type; |
b1fcd190 | 2939 | const __u64 *array; |
01468120 JO |
2940 | |
2941 | if (!(type & PERF_SAMPLE_TIME)) | |
2942 | return -1; | |
2943 | ||
2944 | if (event->header.type != PERF_RECORD_SAMPLE) { | |
2945 | struct perf_sample data = { | |
2946 | .time = -1ULL, | |
2947 | }; | |
2948 | ||
1fc632ce | 2949 | if (!evsel->core.attr.sample_id_all) |
01468120 JO |
2950 | return -1; |
2951 | if (perf_evsel__parse_id_sample(evsel, event, &data)) | |
2952 | return -1; | |
2953 | ||
2954 | *timestamp = data.time; | |
2955 | return 0; | |
2956 | } | |
2957 | ||
2958 | array = event->sample.array; | |
2959 | ||
2960 | if (perf_event__check_size(event, evsel->sample_size)) | |
2961 | return -EFAULT; | |
2962 | ||
2963 | if (type & PERF_SAMPLE_IDENTIFIER) | |
2964 | array++; | |
2965 | ||
2966 | if (type & PERF_SAMPLE_IP) | |
2967 | array++; | |
2968 | ||
2969 | if (type & PERF_SAMPLE_TID) | |
2970 | array++; | |
2971 | ||
2972 | if (type & PERF_SAMPLE_TIME) | |
2973 | *timestamp = *array; | |
2974 | ||
2975 | return 0; | |
2976 | } | |
2977 | ||
0a64de04 AH |
2978 | u16 evsel__id_hdr_size(struct evsel *evsel) |
2979 | { | |
2980 | u64 sample_type = evsel->core.attr.sample_type; | |
2981 | u16 size = 0; | |
2982 | ||
2983 | if (sample_type & PERF_SAMPLE_TID) | |
2984 | size += sizeof(u64); | |
2985 | ||
2986 | if (sample_type & PERF_SAMPLE_TIME) | |
2987 | size += sizeof(u64); | |
2988 | ||
2989 | if (sample_type & PERF_SAMPLE_ID) | |
2990 | size += sizeof(u64); | |
2991 | ||
2992 | if (sample_type & PERF_SAMPLE_STREAM_ID) | |
2993 | size += sizeof(u64); | |
2994 | ||
2995 | if (sample_type & PERF_SAMPLE_CPU) | |
2996 | size += sizeof(u64); | |
2997 | ||
2998 | if (sample_type & PERF_SAMPLE_IDENTIFIER) | |
2999 | size += sizeof(u64); | |
3000 | ||
3001 | return size; | |
3002 | } | |
3003 | ||
378ef0f5 | 3004 | #ifdef HAVE_LIBTRACEEVENT |
efc0cdc9 | 3005 | struct tep_format_field *evsel__field(struct evsel *evsel, const char *name) |
efd2b924 | 3006 | { |
af85cd19 | 3007 | return tep_find_field(evsel->tp_format, name); |
efd2b924 ACM |
3008 | } |
3009 | ||
a8792242 YJ |
3010 | struct tep_format_field *evsel__common_field(struct evsel *evsel, const char *name) |
3011 | { | |
3012 | return tep_find_common_field(evsel->tp_format, name); | |
3013 | } | |
3014 | ||
efc0cdc9 | 3015 | void *evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, const char *name) |
5555ded4 | 3016 | { |
efc0cdc9 | 3017 | struct tep_format_field *field = evsel__field(evsel, name); |
5555ded4 ACM |
3018 | int offset; |
3019 | ||
efd2b924 ACM |
3020 | if (!field) |
3021 | return NULL; | |
5555ded4 ACM |
3022 | |
3023 | offset = field->offset; | |
3024 | ||
bb39ccb2 | 3025 | if (field->flags & TEP_FIELD_IS_DYNAMIC) { |
5555ded4 ACM |
3026 | offset = *(int *)(sample->raw_data + field->offset); |
3027 | offset &= 0xffff; | |
1634bad3 | 3028 | if (tep_field_is_relative(field->flags)) |
7c689c83 | 3029 | offset += field->offset + field->size; |
5555ded4 ACM |
3030 | } |
3031 | ||
3032 | return sample->raw_data + offset; | |
3033 | } | |
3034 | ||
2c92f982 | 3035 | u64 format_field__intval(struct tep_format_field *field, struct perf_sample *sample, |
90525176 | 3036 | bool needs_swap) |
5555ded4 | 3037 | { |
e6b6f679 | 3038 | u64 value; |
90525176 | 3039 | void *ptr = sample->raw_data + field->offset; |
5555ded4 | 3040 | |
e6b6f679 ACM |
3041 | switch (field->size) { |
3042 | case 1: | |
3043 | return *(u8 *)ptr; | |
3044 | case 2: | |
3045 | value = *(u16 *)ptr; | |
3046 | break; | |
3047 | case 4: | |
3048 | value = *(u32 *)ptr; | |
3049 | break; | |
3050 | case 8: | |
e94eedab | 3051 | memcpy(&value, ptr, sizeof(u64)); |
e6b6f679 ACM |
3052 | break; |
3053 | default: | |
3054 | return 0; | |
3055 | } | |
3056 | ||
90525176 | 3057 | if (!needs_swap) |
e6b6f679 ACM |
3058 | return value; |
3059 | ||
3060 | switch (field->size) { | |
3061 | case 2: | |
3062 | return bswap_16(value); | |
3063 | case 4: | |
3064 | return bswap_32(value); | |
3065 | case 8: | |
3066 | return bswap_64(value); | |
3067 | default: | |
3068 | return 0; | |
3069 | } | |
3070 | ||
3071 | return 0; | |
5555ded4 | 3072 | } |
0698aedd | 3073 | |
efc0cdc9 | 3074 | u64 evsel__intval(struct evsel *evsel, struct perf_sample *sample, const char *name) |
90525176 | 3075 | { |
efc0cdc9 | 3076 | struct tep_format_field *field = evsel__field(evsel, name); |
90525176 | 3077 | |
90525176 ACM |
3078 | return field ? format_field__intval(field, sample, evsel->needs_swap) : 0; |
3079 | } | |
a8792242 YJ |
3080 | |
3081 | u64 evsel__intval_common(struct evsel *evsel, struct perf_sample *sample, const char *name) | |
3082 | { | |
3083 | struct tep_format_field *field = evsel__common_field(evsel, name); | |
3084 | ||
3085 | return field ? format_field__intval(field, sample, evsel->needs_swap) : 0; | |
3086 | } | |
3087 | ||
df8bc77e ZG |
3088 | char evsel__taskstate(struct evsel *evsel, struct perf_sample *sample, const char *name) |
3089 | { | |
3090 | static struct tep_format_field *prev_state_field; | |
3091 | static const char *states; | |
3092 | struct tep_format_field *field; | |
3093 | unsigned long long val; | |
3094 | unsigned int bit; | |
3095 | char state = '?'; /* '?' denotes unknown task state */ | |
3096 | ||
3097 | field = evsel__field(evsel, name); | |
3098 | ||
3099 | if (!field) | |
3100 | return state; | |
3101 | ||
3102 | if (!states || field != prev_state_field) { | |
20018398 | 3103 | states = parse_task_states(field); |
df8bc77e ZG |
3104 | if (!states) |
3105 | return state; | |
3106 | prev_state_field = field; | |
3107 | } | |
3108 | ||
3109 | /* | |
3110 | * Note since the kernel exposes TASK_REPORT_MAX to userspace | |
3111 | * to denote the 'preempted' state, we might as welll report | |
3112 | * 'R' for this case, which make senses to users as well. | |
3113 | * | |
3114 | * We can change this if we have a good reason in the future. | |
3115 | */ | |
3116 | val = evsel__intval(evsel, sample, name); | |
3117 | bit = val ? ffs(val) : 0; | |
3118 | state = (!bit || bit > strlen(states)) ? 'R' : states[bit-1]; | |
3119 | return state; | |
3120 | } | |
378ef0f5 | 3121 | #endif |
90525176 | 3122 | |
eb2eac0c IR |
3123 | bool evsel__fallback(struct evsel *evsel, struct target *target, int err, |
3124 | char *msg, size_t msgsize) | |
c0a54341 | 3125 | { |
08094828 ACM |
3126 | int paranoid; |
3127 | ||
2b821cce | 3128 | if ((err == ENOENT || err == ENXIO || err == ENODEV) && |
1fc632ce JO |
3129 | evsel->core.attr.type == PERF_TYPE_HARDWARE && |
3130 | evsel->core.attr.config == PERF_COUNT_HW_CPU_CYCLES) { | |
c0a54341 | 3131 | /* |
eb2eac0c IR |
3132 | * If it's cycles then fall back to hrtimer based cpu-clock sw |
3133 | * counter, which is always available even if no PMU support. | |
c0a54341 ACM |
3134 | * |
3135 | * PPC returns ENXIO until 2.6.37 (behavior changed with commit | |
3136 | * b0a873e). | |
3137 | */ | |
1fc632ce | 3138 | evsel->core.attr.type = PERF_TYPE_SOFTWARE; |
eb2eac0c IR |
3139 | evsel->core.attr.config = target__has_cpu(target) |
3140 | ? PERF_COUNT_SW_CPU_CLOCK | |
3141 | : PERF_COUNT_SW_TASK_CLOCK; | |
3142 | scnprintf(msg, msgsize, | |
3143 | "The cycles event is not supported, trying to fall back to %s", | |
3144 | target__has_cpu(target) ? "cpu-clock" : "task-clock"); | |
c0a54341 | 3145 | |
04662523 | 3146 | zfree(&evsel->name); |
08094828 | 3147 | return true; |
1fc632ce | 3148 | } else if (err == EACCES && !evsel->core.attr.exclude_kernel && |
08094828 | 3149 | (paranoid = perf_event_paranoid()) > 1) { |
8ab2e96d | 3150 | const char *name = evsel__name(evsel); |
08094828 | 3151 | char *new_name; |
129193bb | 3152 | const char *sep = ":"; |
08094828 | 3153 | |
bec49a9e SE |
3154 | /* If event has exclude user then don't exclude kernel. */ |
3155 | if (evsel->core.attr.exclude_user) | |
3156 | return false; | |
3157 | ||
129193bb JO |
3158 | /* Is there already the separator in the name. */ |
3159 | if (strchr(name, '/') || | |
70943490 | 3160 | (strchr(name, ':') && !evsel->is_libpfm_event)) |
129193bb JO |
3161 | sep = ""; |
3162 | ||
3163 | if (asprintf(&new_name, "%s%su", name, sep) < 0) | |
08094828 ACM |
3164 | return false; |
3165 | ||
cdf13c09 | 3166 | free(evsel->name); |
08094828 | 3167 | evsel->name = new_name; |
4ec8d984 SE |
3168 | scnprintf(msg, msgsize, "kernel.perf_event_paranoid=%d, trying " |
3169 | "to fall back to excluding kernel and hypervisor " | |
3170 | " samples", paranoid); | |
1fc632ce | 3171 | evsel->core.attr.exclude_kernel = 1; |
4ec8d984 | 3172 | evsel->core.attr.exclude_hv = 1; |
08094828 | 3173 | |
c0a54341 ACM |
3174 | return true; |
3175 | } | |
3176 | ||
3177 | return false; | |
3178 | } | |
56e52e85 | 3179 | |
2157f6ee ACM |
3180 | static bool find_process(const char *name) |
3181 | { | |
3182 | size_t len = strlen(name); | |
3183 | DIR *dir; | |
3184 | struct dirent *d; | |
3185 | int ret = -1; | |
3186 | ||
3187 | dir = opendir(procfs__mountpoint()); | |
3188 | if (!dir) | |
3189 | return false; | |
3190 | ||
3191 | /* Walk through the directory. */ | |
3192 | while (ret && (d = readdir(dir)) != NULL) { | |
3193 | char path[PATH_MAX]; | |
3194 | char *data; | |
3195 | size_t size; | |
3196 | ||
3197 | if ((d->d_type != DT_DIR) || | |
3198 | !strcmp(".", d->d_name) || | |
3199 | !strcmp("..", d->d_name)) | |
3200 | continue; | |
3201 | ||
3202 | scnprintf(path, sizeof(path), "%s/%s/comm", | |
3203 | procfs__mountpoint(), d->d_name); | |
3204 | ||
3205 | if (filename__read_str(path, &data, &size)) | |
3206 | continue; | |
3207 | ||
3208 | ret = strncmp(name, data, len); | |
3209 | free(data); | |
3210 | } | |
3211 | ||
3212 | closedir(dir); | |
3213 | return ret ? false : true; | |
3214 | } | |
3215 | ||
b2ad9549 RB |
3216 | int __weak arch_evsel__open_strerror(struct evsel *evsel __maybe_unused, |
3217 | char *msg __maybe_unused, | |
3218 | size_t size __maybe_unused) | |
ab0809af | 3219 | { |
b2ad9549 | 3220 | return 0; |
ab0809af KP |
3221 | } |
3222 | ||
2bb72dbb ACM |
3223 | int evsel__open_strerror(struct evsel *evsel, struct target *target, |
3224 | int err, char *msg, size_t size) | |
56e52e85 | 3225 | { |
6e81c74c | 3226 | char sbuf[STRERR_BUFSIZE]; |
c1034eb0 | 3227 | int printed = 0, enforced = 0; |
b2ad9549 | 3228 | int ret; |
6e81c74c | 3229 | |
56e52e85 ACM |
3230 | switch (err) { |
3231 | case EPERM: | |
3232 | case EACCES: | |
c1034eb0 AB |
3233 | printed += scnprintf(msg + printed, size - printed, |
3234 | "Access to performance monitoring and observability operations is limited.\n"); | |
3235 | ||
3236 | if (!sysfs__read_int("fs/selinux/enforce", &enforced)) { | |
3237 | if (enforced) { | |
3238 | printed += scnprintf(msg + printed, size - printed, | |
3239 | "Enforced MAC policy settings (SELinux) can limit access to performance\n" | |
3240 | "monitoring and observability operations. Inspect system audit records for\n" | |
3241 | "more perf_event access control information and adjusting the policy.\n"); | |
3242 | } | |
3243 | } | |
3244 | ||
32ccb130 | 3245 | if (err == EPERM) |
c1034eb0 | 3246 | printed += scnprintf(msg, size, |
8ab2e96d | 3247 | "No permission to enable %s event.\n\n", evsel__name(evsel)); |
32ccb130 JY |
3248 | |
3249 | return scnprintf(msg + printed, size - printed, | |
c1034eb0 | 3250 | "Consider adjusting /proc/sys/kernel/perf_event_paranoid setting to open\n" |
4b0297ef AB |
3251 | "access to performance monitoring and observability operations for processes\n" |
3252 | "without CAP_PERFMON, CAP_SYS_PTRACE or CAP_SYS_ADMIN Linux capability.\n" | |
3253 | "More information can be found at 'Perf events and tool security' document:\n" | |
3254 | "https://www.kernel.org/doc/html/latest/admin-guide/perf-security.html\n" | |
c1034eb0 | 3255 | "perf_event_paranoid setting is %d:\n" |
3379e0c3 | 3256 | " -1: Allow use of (almost) all events by all users\n" |
ac0bb6b7 | 3257 | " Ignore mlock limit after perf_event_mlock_kb without CAP_IPC_LOCK\n" |
c1034eb0 AB |
3258 | ">= 0: Disallow raw and ftrace function tracepoint access\n" |
3259 | ">= 1: Disallow CPU event access\n" | |
3260 | ">= 2: Disallow kernel profiling\n" | |
3261 | "To make the adjusted perf_event_paranoid setting permanent preserve it\n" | |
3262 | "in /etc/sysctl.conf (e.g. kernel.perf_event_paranoid = <setting>)", | |
3263 | perf_event_paranoid()); | |
56e52e85 | 3264 | case ENOENT: |
8ab2e96d | 3265 | return scnprintf(msg, size, "The %s event is not supported.", evsel__name(evsel)); |
56e52e85 ACM |
3266 | case EMFILE: |
3267 | return scnprintf(msg, size, "%s", | |
3268 | "Too many events are opened.\n" | |
18ffdfe8 JO |
3269 | "Probably the maximum number of open file descriptors has been reached.\n" |
3270 | "Hint: Try again after reducing the number of events.\n" | |
3271 | "Hint: Try increasing the limit with 'ulimit -n <limit>'"); | |
de46d526 | 3272 | case ENOMEM: |
27de9b2b | 3273 | if (evsel__has_callchain(evsel) && |
de46d526 ACM |
3274 | access("/proc/sys/kernel/perf_event_max_stack", F_OK) == 0) |
3275 | return scnprintf(msg, size, | |
3276 | "Not enough memory to setup event with callchain.\n" | |
3277 | "Hint: Try tweaking /proc/sys/kernel/perf_event_max_stack\n" | |
029c75e5 | 3278 | "Hint: Current value: %d", sysctl__max_stack()); |
de46d526 | 3279 | break; |
56e52e85 ACM |
3280 | case ENODEV: |
3281 | if (target->cpu_list) | |
3282 | return scnprintf(msg, size, "%s", | |
81d64f46 | 3283 | "No such device - did you specify an out-of-range profile CPU?"); |
56e52e85 ACM |
3284 | break; |
3285 | case EOPNOTSUPP: | |
8f431a28 JC |
3286 | if (evsel->core.attr.sample_type & PERF_SAMPLE_BRANCH_STACK) |
3287 | return scnprintf(msg, size, | |
3288 | "%s: PMU Hardware or event type doesn't support branch stack sampling.", | |
3289 | evsel__name(evsel)); | |
2c9a11af AH |
3290 | if (evsel->core.attr.aux_output) |
3291 | return scnprintf(msg, size, | |
3292 | "%s: PMU Hardware doesn't support 'aux_output' feature", | |
3293 | evsel__name(evsel)); | |
1fc632ce | 3294 | if (evsel->core.attr.sample_period != 0) |
114bc191 KP |
3295 | return scnprintf(msg, size, |
3296 | "%s: PMU Hardware doesn't support sampling/overflow-interrupts. Try 'perf stat'", | |
8ab2e96d | 3297 | evsel__name(evsel)); |
1fc632ce | 3298 | if (evsel->core.attr.precise_ip) |
56e52e85 ACM |
3299 | return scnprintf(msg, size, "%s", |
3300 | "\'precise\' request may not be supported. Try removing 'p' modifier."); | |
3301 | #if defined(__i386__) || defined(__x86_64__) | |
1fc632ce | 3302 | if (evsel->core.attr.type == PERF_TYPE_HARDWARE) |
56e52e85 | 3303 | return scnprintf(msg, size, "%s", |
ccbb6afe | 3304 | "No hardware sampling interrupt available.\n"); |
56e52e85 ACM |
3305 | #endif |
3306 | break; | |
63914aca JO |
3307 | case EBUSY: |
3308 | if (find_process("oprofiled")) | |
3309 | return scnprintf(msg, size, | |
3310 | "The PMU counters are busy/taken by another profiler.\n" | |
3311 | "We found oprofile daemon running, please stop it and try again."); | |
3312 | break; | |
814c8c38 | 3313 | case EINVAL: |
c1de7f3d KL |
3314 | if (evsel->core.attr.sample_type & PERF_SAMPLE_CODE_PAGE_SIZE && perf_missing_features.code_page_size) |
3315 | return scnprintf(msg, size, "Asking for the code page size isn't supported by this kernel."); | |
456ef4c1 ACM |
3316 | if (evsel->core.attr.sample_type & PERF_SAMPLE_DATA_PAGE_SIZE && perf_missing_features.data_page_size) |
3317 | return scnprintf(msg, size, "Asking for the data page size isn't supported by this kernel."); | |
1fc632ce | 3318 | if (evsel->core.attr.write_backward && perf_missing_features.write_backward) |
7da36e94 | 3319 | return scnprintf(msg, size, "Reading from overwrite event is not supported by this kernel."); |
814c8c38 PZ |
3320 | if (perf_missing_features.clockid) |
3321 | return scnprintf(msg, size, "clockid feature not supported."); | |
3322 | if (perf_missing_features.clockid_wrong) | |
3323 | return scnprintf(msg, size, "wrong clockid (%d).", clockid); | |
acb9f2d4 ACM |
3324 | if (perf_missing_features.aux_output) |
3325 | return scnprintf(msg, size, "The 'aux_output' feature is not supported, update the kernel."); | |
dcffc5eb IR |
3326 | if (!target__has_cpu(target)) |
3327 | return scnprintf(msg, size, | |
3328 | "Invalid event (%s) in per-thread mode, enable system wide with '-a'.", | |
3329 | evsel__name(evsel)); | |
ab0809af | 3330 | |
814c8c38 | 3331 | break; |
2a57d408 KL |
3332 | case ENODATA: |
3333 | return scnprintf(msg, size, "Cannot collect data source with the load latency event alone. " | |
3334 | "Please add an auxiliary event in front of the load latency event."); | |
56e52e85 ACM |
3335 | default: |
3336 | break; | |
3337 | } | |
3338 | ||
b2ad9549 RB |
3339 | ret = arch_evsel__open_strerror(evsel, msg, size); |
3340 | if (ret) | |
3341 | return ret; | |
3342 | ||
56e52e85 | 3343 | return scnprintf(msg, size, |
6e81c74c | 3344 | "The sys_perf_event_open() syscall returned with %d (%s) for event (%s).\n" |
ec394845 | 3345 | "/bin/dmesg | grep -i perf may provide additional information.\n", |
8ab2e96d | 3346 | err, str_error_r(err, sbuf, sizeof(sbuf)), evsel__name(evsel)); |
56e52e85 | 3347 | } |
f4e47f9f | 3348 | |
6e6d1d65 | 3349 | struct perf_env *evsel__env(struct evsel *evsel) |
69fb09f6 | 3350 | { |
7b830875 | 3351 | if (evsel && evsel->evlist && evsel->evlist->env) |
5449f13c | 3352 | return evsel->evlist->env; |
9db0e363 | 3353 | return &perf_env; |
69fb09f6 | 3354 | } |
650d6220 | 3355 | |
63503dba | 3356 | static int store_evsel_ids(struct evsel *evsel, struct evlist *evlist) |
650d6220 | 3357 | { |
6f844b1f | 3358 | int cpu_map_idx, thread; |
650d6220 | 3359 | |
6f844b1f | 3360 | for (cpu_map_idx = 0; cpu_map_idx < xyarray__max_x(evsel->core.fd); cpu_map_idx++) { |
9dfcb759 | 3361 | for (thread = 0; thread < xyarray__max_y(evsel->core.fd); |
650d6220 | 3362 | thread++) { |
6f844b1f | 3363 | int fd = FD(evsel, cpu_map_idx, thread); |
650d6220 | 3364 | |
d5a99483 | 3365 | if (perf_evlist__id_add_fd(&evlist->core, &evsel->core, |
6f844b1f | 3366 | cpu_map_idx, thread, fd) < 0) |
650d6220 JO |
3367 | return -1; |
3368 | } | |
3369 | } | |
3370 | ||
3371 | return 0; | |
3372 | } | |
3373 | ||
34397753 | 3374 | int evsel__store_ids(struct evsel *evsel, struct evlist *evlist) |
650d6220 | 3375 | { |
d400bd3a | 3376 | struct perf_cpu_map *cpus = evsel->core.cpus; |
af663bd0 | 3377 | struct perf_thread_map *threads = evsel->core.threads; |
650d6220 | 3378 | |
44028699 | 3379 | if (perf_evsel__alloc_id(&evsel->core, perf_cpu_map__nr(cpus), threads->nr)) |
650d6220 JO |
3380 | return -ENOMEM; |
3381 | ||
3382 | return store_evsel_ids(evsel, evlist); | |
3383 | } | |
034f7ee1 JY |
3384 | |
3385 | void evsel__zero_per_pkg(struct evsel *evsel) | |
3386 | { | |
3387 | struct hashmap_entry *cur; | |
3388 | size_t bkt; | |
3389 | ||
3390 | if (evsel->per_pkg_mask) { | |
3391 | hashmap__for_each_entry(evsel->per_pkg_mask, cur, bkt) | |
cdf13c09 | 3392 | zfree(&cur->pkey); |
034f7ee1 JY |
3393 | |
3394 | hashmap__clear(evsel->per_pkg_mask); | |
3395 | } | |
3396 | } | |
660e533e | 3397 | |
5d9fb666 IR |
3398 | /** |
3399 | * evsel__is_hybrid - does the evsel have a known PMU that is hybrid. Note, this | |
3400 | * will be false on hybrid systems for hardware and legacy | |
3401 | * cache events. | |
3402 | */ | |
e5f4afbe | 3403 | bool evsel__is_hybrid(const struct evsel *evsel) |
660e533e | 3404 | { |
94f9eb95 | 3405 | if (perf_pmus__num_core_pmus() == 1) |
5d9fb666 IR |
3406 | return false; |
3407 | ||
3408 | return evsel->core.is_pmu_core; | |
660e533e | 3409 | } |
fba7c866 | 3410 | |
c6d616fe | 3411 | struct evsel *evsel__leader(const struct evsel *evsel) |
fba7c866 JO |
3412 | { |
3413 | return container_of(evsel->core.leader, struct evsel, core); | |
3414 | } | |
3415 | ||
3416 | bool evsel__has_leader(struct evsel *evsel, struct evsel *leader) | |
3417 | { | |
3418 | return evsel->core.leader == &leader->core; | |
3419 | } | |
3420 | ||
3421 | bool evsel__is_leader(struct evsel *evsel) | |
3422 | { | |
3423 | return evsel__has_leader(evsel, evsel); | |
3424 | } | |
3425 | ||
3426 | void evsel__set_leader(struct evsel *evsel, struct evsel *leader) | |
3427 | { | |
3428 | evsel->core.leader = &leader->core; | |
3429 | } | |
9aba0ada IR |
3430 | |
3431 | int evsel__source_count(const struct evsel *evsel) | |
3432 | { | |
3433 | struct evsel *pos; | |
3434 | int count = 0; | |
3435 | ||
3436 | evlist__for_each_entry(evsel->evlist, pos) { | |
3437 | if (pos->metric_leader == evsel) | |
3438 | count++; | |
3439 | } | |
3440 | return count; | |
3441 | } | |
d98079c0 IR |
3442 | |
3443 | bool __weak arch_evsel__must_be_in_group(const struct evsel *evsel __maybe_unused) | |
3444 | { | |
3445 | return false; | |
3446 | } | |
3447 | ||
e8f4f794 KL |
3448 | /* |
3449 | * Remove an event from a given group (leader). | |
3450 | * Some events, e.g., perf metrics Topdown events, | |
3451 | * must always be grouped. Ignore the events. | |
3452 | */ | |
3453 | void evsel__remove_from_group(struct evsel *evsel, struct evsel *leader) | |
d98079c0 | 3454 | { |
e8f4f794 KL |
3455 | if (!arch_evsel__must_be_in_group(evsel) && evsel != leader) { |
3456 | evsel__set_leader(evsel, evsel); | |
3457 | evsel->core.nr_members = 0; | |
3458 | leader->core.nr_members--; | |
3459 | } | |
d98079c0 | 3460 | } |