2 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
4 * Parts came from builtin-{top,stat,record}.c, see those files for further
7 * Released under the GPL v2. (and only v2, not any later version)
11 #include <linux/bitops.h>
14 #include "event-parse.h"
19 #include "thread_map.h"
21 #include "../../../include/linux/hw_breakpoint.h"
22 #include "../../include/linux/perf_event.h"
23 #include "perf_regs.h"
25 #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
27 static int __perf_evsel__sample_size(u64 sample_type)
29 u64 mask = sample_type & PERF_SAMPLE_MASK;
33 for (i = 0; i < 64; i++) {
34 if (mask & (1ULL << i))
43 void hists__init(struct hists *hists)
45 memset(hists, 0, sizeof(*hists));
46 hists->entries_in_array[0] = hists->entries_in_array[1] = RB_ROOT;
47 hists->entries_in = &hists->entries_in_array[0];
48 hists->entries_collapsed = RB_ROOT;
49 hists->entries = RB_ROOT;
50 pthread_mutex_init(&hists->lock, NULL);
53 void perf_evsel__init(struct perf_evsel *evsel,
54 struct perf_event_attr *attr, int idx)
58 INIT_LIST_HEAD(&evsel->node);
59 hists__init(&evsel->hists);
60 evsel->sample_size = __perf_evsel__sample_size(attr->sample_type);
63 struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx)
65 struct perf_evsel *evsel = zalloc(sizeof(*evsel));
68 perf_evsel__init(evsel, attr, idx);
73 static struct event_format *event_format__new(const char *sys, const char *name)
77 void *bf = NULL, *nbf;
78 size_t size = 0, alloc_size = 0;
79 struct event_format *format = NULL;
81 if (asprintf(&filename, "%s/%s/%s/format", tracing_events_path, sys, name) < 0)
84 fd = open(filename, O_RDONLY);
86 goto out_free_filename;
89 if (size == alloc_size) {
91 nbf = realloc(bf, alloc_size);
97 n = read(fd, bf + size, BUFSIZ);
103 pevent_parse_format(&format, bf, size, sys);
114 struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name, int idx)
116 struct perf_evsel *evsel = zalloc(sizeof(*evsel));
119 struct perf_event_attr attr = {
120 .type = PERF_TYPE_TRACEPOINT,
121 .sample_type = (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME |
122 PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD),
125 if (asprintf(&evsel->name, "%s:%s", sys, name) < 0)
128 evsel->tp_format = event_format__new(sys, name);
129 if (evsel->tp_format == NULL)
132 event_attr_init(&attr);
133 attr.config = evsel->tp_format->id;
134 attr.sample_period = 1;
135 perf_evsel__init(evsel, &attr, idx);
146 const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX] = {
154 "stalled-cycles-frontend",
155 "stalled-cycles-backend",
159 static const char *__perf_evsel__hw_name(u64 config)
161 if (config < PERF_COUNT_HW_MAX && perf_evsel__hw_names[config])
162 return perf_evsel__hw_names[config];
164 return "unknown-hardware";
167 static int perf_evsel__add_modifiers(struct perf_evsel *evsel, char *bf, size_t size)
169 int colon = 0, r = 0;
170 struct perf_event_attr *attr = &evsel->attr;
171 bool exclude_guest_default = false;
173 #define MOD_PRINT(context, mod) do { \
174 if (!attr->exclude_##context) { \
175 if (!colon) colon = ++r; \
176 r += scnprintf(bf + r, size - r, "%c", mod); \
179 if (attr->exclude_kernel || attr->exclude_user || attr->exclude_hv) {
180 MOD_PRINT(kernel, 'k');
181 MOD_PRINT(user, 'u');
183 exclude_guest_default = true;
186 if (attr->precise_ip) {
189 r += scnprintf(bf + r, size - r, "%.*s", attr->precise_ip, "ppp");
190 exclude_guest_default = true;
193 if (attr->exclude_host || attr->exclude_guest == exclude_guest_default) {
194 MOD_PRINT(host, 'H');
195 MOD_PRINT(guest, 'G');
203 static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
205 int r = scnprintf(bf, size, "%s", __perf_evsel__hw_name(evsel->attr.config));
206 return r + perf_evsel__add_modifiers(evsel, bf + r, size - r);
209 const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX] = {
221 static const char *__perf_evsel__sw_name(u64 config)
223 if (config < PERF_COUNT_SW_MAX && perf_evsel__sw_names[config])
224 return perf_evsel__sw_names[config];
225 return "unknown-software";
228 static int perf_evsel__sw_name(struct perf_evsel *evsel, char *bf, size_t size)
230 int r = scnprintf(bf, size, "%s", __perf_evsel__sw_name(evsel->attr.config));
231 return r + perf_evsel__add_modifiers(evsel, bf + r, size - r);
234 static int __perf_evsel__bp_name(char *bf, size_t size, u64 addr, u64 type)
238 r = scnprintf(bf, size, "mem:0x%" PRIx64 ":", addr);
240 if (type & HW_BREAKPOINT_R)
241 r += scnprintf(bf + r, size - r, "r");
243 if (type & HW_BREAKPOINT_W)
244 r += scnprintf(bf + r, size - r, "w");
246 if (type & HW_BREAKPOINT_X)
247 r += scnprintf(bf + r, size - r, "x");
252 static int perf_evsel__bp_name(struct perf_evsel *evsel, char *bf, size_t size)
254 struct perf_event_attr *attr = &evsel->attr;
255 int r = __perf_evsel__bp_name(bf, size, attr->bp_addr, attr->bp_type);
256 return r + perf_evsel__add_modifiers(evsel, bf + r, size - r);
259 const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
260 [PERF_EVSEL__MAX_ALIASES] = {
261 { "L1-dcache", "l1-d", "l1d", "L1-data", },
262 { "L1-icache", "l1-i", "l1i", "L1-instruction", },
264 { "dTLB", "d-tlb", "Data-TLB", },
265 { "iTLB", "i-tlb", "Instruction-TLB", },
266 { "branch", "branches", "bpu", "btb", "bpc", },
270 const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
271 [PERF_EVSEL__MAX_ALIASES] = {
272 { "load", "loads", "read", },
273 { "store", "stores", "write", },
274 { "prefetch", "prefetches", "speculative-read", "speculative-load", },
277 const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
278 [PERF_EVSEL__MAX_ALIASES] = {
279 { "refs", "Reference", "ops", "access", },
280 { "misses", "miss", },
283 #define C(x) PERF_COUNT_HW_CACHE_##x
284 #define CACHE_READ (1 << C(OP_READ))
285 #define CACHE_WRITE (1 << C(OP_WRITE))
286 #define CACHE_PREFETCH (1 << C(OP_PREFETCH))
287 #define COP(x) (1 << x)
290 * cache operartion stat
291 * L1I : Read and prefetch only
292 * ITLB and BPU : Read-only
294 static unsigned long perf_evsel__hw_cache_stat[C(MAX)] = {
295 [C(L1D)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
296 [C(L1I)] = (CACHE_READ | CACHE_PREFETCH),
297 [C(LL)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
298 [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
299 [C(ITLB)] = (CACHE_READ),
300 [C(BPU)] = (CACHE_READ),
301 [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
304 bool perf_evsel__is_cache_op_valid(u8 type, u8 op)
306 if (perf_evsel__hw_cache_stat[type] & COP(op))
307 return true; /* valid */
309 return false; /* invalid */
312 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
313 char *bf, size_t size)
316 return scnprintf(bf, size, "%s-%s-%s", perf_evsel__hw_cache[type][0],
317 perf_evsel__hw_cache_op[op][0],
318 perf_evsel__hw_cache_result[result][0]);
321 return scnprintf(bf, size, "%s-%s", perf_evsel__hw_cache[type][0],
322 perf_evsel__hw_cache_op[op][1]);
325 static int __perf_evsel__hw_cache_name(u64 config, char *bf, size_t size)
327 u8 op, result, type = (config >> 0) & 0xff;
328 const char *err = "unknown-ext-hardware-cache-type";
330 if (type > PERF_COUNT_HW_CACHE_MAX)
333 op = (config >> 8) & 0xff;
334 err = "unknown-ext-hardware-cache-op";
335 if (op > PERF_COUNT_HW_CACHE_OP_MAX)
338 result = (config >> 16) & 0xff;
339 err = "unknown-ext-hardware-cache-result";
340 if (result > PERF_COUNT_HW_CACHE_RESULT_MAX)
343 err = "invalid-cache";
344 if (!perf_evsel__is_cache_op_valid(type, op))
347 return __perf_evsel__hw_cache_type_op_res_name(type, op, result, bf, size);
349 return scnprintf(bf, size, "%s", err);
352 static int perf_evsel__hw_cache_name(struct perf_evsel *evsel, char *bf, size_t size)
354 int ret = __perf_evsel__hw_cache_name(evsel->attr.config, bf, size);
355 return ret + perf_evsel__add_modifiers(evsel, bf + ret, size - ret);
358 static int perf_evsel__raw_name(struct perf_evsel *evsel, char *bf, size_t size)
360 int ret = scnprintf(bf, size, "raw 0x%" PRIx64, evsel->attr.config);
361 return ret + perf_evsel__add_modifiers(evsel, bf + ret, size - ret);
364 const char *perf_evsel__name(struct perf_evsel *evsel)
371 switch (evsel->attr.type) {
373 perf_evsel__raw_name(evsel, bf, sizeof(bf));
376 case PERF_TYPE_HARDWARE:
377 perf_evsel__hw_name(evsel, bf, sizeof(bf));
380 case PERF_TYPE_HW_CACHE:
381 perf_evsel__hw_cache_name(evsel, bf, sizeof(bf));
384 case PERF_TYPE_SOFTWARE:
385 perf_evsel__sw_name(evsel, bf, sizeof(bf));
388 case PERF_TYPE_TRACEPOINT:
389 scnprintf(bf, sizeof(bf), "%s", "unknown tracepoint");
392 case PERF_TYPE_BREAKPOINT:
393 perf_evsel__bp_name(evsel, bf, sizeof(bf));
397 scnprintf(bf, sizeof(bf), "unknown attr type: %d",
402 evsel->name = strdup(bf);
404 return evsel->name ?: "unknown";
407 void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts,
408 struct perf_evsel *first)
410 struct perf_event_attr *attr = &evsel->attr;
411 int track = !evsel->idx; /* only the first counter needs these */
414 attr->sample_id_all = opts->sample_id_all_missing ? 0 : 1;
415 attr->inherit = !opts->no_inherit;
416 attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
417 PERF_FORMAT_TOTAL_TIME_RUNNING |
420 attr->sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID;
423 * We default some events to a 1 default interval. But keep
424 * it a weak assumption overridable by the user.
426 if (!attr->sample_period || (opts->user_freq != UINT_MAX &&
427 opts->user_interval != ULLONG_MAX)) {
429 attr->sample_type |= PERF_SAMPLE_PERIOD;
431 attr->sample_freq = opts->freq;
433 attr->sample_period = opts->default_interval;
437 if (opts->no_samples)
438 attr->sample_freq = 0;
440 if (opts->inherit_stat)
441 attr->inherit_stat = 1;
443 if (opts->sample_address) {
444 attr->sample_type |= PERF_SAMPLE_ADDR;
445 attr->mmap_data = track;
448 if (opts->call_graph) {
449 attr->sample_type |= PERF_SAMPLE_CALLCHAIN;
451 if (opts->call_graph == CALLCHAIN_DWARF) {
452 attr->sample_type |= PERF_SAMPLE_REGS_USER |
453 PERF_SAMPLE_STACK_USER;
454 attr->sample_regs_user = PERF_REGS_MASK;
455 attr->sample_stack_user = opts->stack_dump_size;
456 attr->exclude_callchain_user = 1;
460 if (perf_target__has_cpu(&opts->target))
461 attr->sample_type |= PERF_SAMPLE_CPU;
464 attr->sample_type |= PERF_SAMPLE_PERIOD;
466 if (!opts->sample_id_all_missing &&
467 (opts->sample_time || !opts->no_inherit ||
468 perf_target__has_cpu(&opts->target)))
469 attr->sample_type |= PERF_SAMPLE_TIME;
471 if (opts->raw_samples) {
472 attr->sample_type |= PERF_SAMPLE_TIME;
473 attr->sample_type |= PERF_SAMPLE_RAW;
474 attr->sample_type |= PERF_SAMPLE_CPU;
477 if (opts->no_delay) {
479 attr->wakeup_events = 1;
481 if (opts->branch_stack) {
482 attr->sample_type |= PERF_SAMPLE_BRANCH_STACK;
483 attr->branch_sample_type = opts->branch_stack;
489 if (perf_target__none(&opts->target) &&
490 (!opts->group || evsel == first)) {
491 attr->enable_on_exec = 1;
495 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
498 evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int));
501 for (cpu = 0; cpu < ncpus; cpu++) {
502 for (thread = 0; thread < nthreads; thread++) {
503 FD(evsel, cpu, thread) = -1;
508 return evsel->fd != NULL ? 0 : -ENOMEM;
511 int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
516 for (cpu = 0; cpu < ncpus; cpu++) {
517 for (thread = 0; thread < nthreads; thread++) {
518 int fd = FD(evsel, cpu, thread),
519 err = ioctl(fd, PERF_EVENT_IOC_SET_FILTER, filter);
529 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads)
531 evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id));
532 if (evsel->sample_id == NULL)
535 evsel->id = zalloc(ncpus * nthreads * sizeof(u64));
536 if (evsel->id == NULL) {
537 xyarray__delete(evsel->sample_id);
538 evsel->sample_id = NULL;
545 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus)
547 evsel->counts = zalloc((sizeof(*evsel->counts) +
548 (ncpus * sizeof(struct perf_counts_values))));
549 return evsel->counts != NULL ? 0 : -ENOMEM;
552 void perf_evsel__free_fd(struct perf_evsel *evsel)
554 xyarray__delete(evsel->fd);
558 void perf_evsel__free_id(struct perf_evsel *evsel)
560 xyarray__delete(evsel->sample_id);
561 evsel->sample_id = NULL;
566 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
570 for (cpu = 0; cpu < ncpus; cpu++)
571 for (thread = 0; thread < nthreads; ++thread) {
572 close(FD(evsel, cpu, thread));
573 FD(evsel, cpu, thread) = -1;
577 void perf_evsel__exit(struct perf_evsel *evsel)
579 assert(list_empty(&evsel->node));
580 xyarray__delete(evsel->fd);
581 xyarray__delete(evsel->sample_id);
585 void perf_evsel__delete(struct perf_evsel *evsel)
587 perf_evsel__exit(evsel);
588 close_cgroup(evsel->cgrp);
589 free(evsel->group_name);
590 if (evsel->tp_format)
591 pevent_free_format(evsel->tp_format);
596 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
597 int cpu, int thread, bool scale)
599 struct perf_counts_values count;
600 size_t nv = scale ? 3 : 1;
602 if (FD(evsel, cpu, thread) < 0)
605 if (evsel->counts == NULL && perf_evsel__alloc_counts(evsel, cpu + 1) < 0)
608 if (readn(FD(evsel, cpu, thread), &count, nv * sizeof(u64)) < 0)
614 else if (count.run < count.ena)
615 count.val = (u64)((double)count.val * count.ena / count.run + 0.5);
617 count.ena = count.run = 0;
619 evsel->counts->cpu[cpu] = count;
623 int __perf_evsel__read(struct perf_evsel *evsel,
624 int ncpus, int nthreads, bool scale)
626 size_t nv = scale ? 3 : 1;
628 struct perf_counts_values *aggr = &evsel->counts->aggr, count;
630 aggr->val = aggr->ena = aggr->run = 0;
632 for (cpu = 0; cpu < ncpus; cpu++) {
633 for (thread = 0; thread < nthreads; thread++) {
634 if (FD(evsel, cpu, thread) < 0)
637 if (readn(FD(evsel, cpu, thread),
638 &count, nv * sizeof(u64)) < 0)
641 aggr->val += count.val;
643 aggr->ena += count.ena;
644 aggr->run += count.run;
649 evsel->counts->scaled = 0;
651 if (aggr->run == 0) {
652 evsel->counts->scaled = -1;
657 if (aggr->run < aggr->ena) {
658 evsel->counts->scaled = 1;
659 aggr->val = (u64)((double)aggr->val * aggr->ena / aggr->run + 0.5);
662 aggr->ena = aggr->run = 0;
667 static int get_group_fd(struct perf_evsel *evsel, int cpu, int thread)
669 struct perf_evsel *leader = evsel->leader;
676 * Leader must be already processed/open,
681 fd = FD(leader, cpu, thread);
687 static int __perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
688 struct thread_map *threads)
691 unsigned long flags = 0;
694 if (evsel->fd == NULL &&
695 perf_evsel__alloc_fd(evsel, cpus->nr, threads->nr) < 0)
699 flags = PERF_FLAG_PID_CGROUP;
700 pid = evsel->cgrp->fd;
703 for (cpu = 0; cpu < cpus->nr; cpu++) {
705 for (thread = 0; thread < threads->nr; thread++) {
709 pid = threads->map[thread];
711 group_fd = get_group_fd(evsel, cpu, thread);
713 FD(evsel, cpu, thread) = sys_perf_event_open(&evsel->attr,
717 if (FD(evsel, cpu, thread) < 0) {
728 while (--thread >= 0) {
729 close(FD(evsel, cpu, thread));
730 FD(evsel, cpu, thread) = -1;
732 thread = threads->nr;
733 } while (--cpu >= 0);
737 void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads)
739 if (evsel->fd == NULL)
742 perf_evsel__close_fd(evsel, ncpus, nthreads);
743 perf_evsel__free_fd(evsel);
756 struct thread_map map;
758 } empty_thread_map = {
763 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
764 struct thread_map *threads)
767 /* Work around old compiler warnings about strict aliasing */
768 cpus = &empty_cpu_map.map;
772 threads = &empty_thread_map.map;
774 return __perf_evsel__open(evsel, cpus, threads);
777 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
778 struct cpu_map *cpus)
780 return __perf_evsel__open(evsel, cpus, &empty_thread_map.map);
783 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
784 struct thread_map *threads)
786 return __perf_evsel__open(evsel, &empty_cpu_map.map, threads);
789 static int perf_evsel__parse_id_sample(const struct perf_evsel *evsel,
790 const union perf_event *event,
791 struct perf_sample *sample)
793 u64 type = evsel->attr.sample_type;
794 const u64 *array = event->sample.array;
795 bool swapped = evsel->needs_swap;
798 array += ((event->header.size -
799 sizeof(event->header)) / sizeof(u64)) - 1;
801 if (type & PERF_SAMPLE_CPU) {
804 /* undo swap of u64, then swap on individual u32s */
805 u.val64 = bswap_64(u.val64);
806 u.val32[0] = bswap_32(u.val32[0]);
809 sample->cpu = u.val32[0];
813 if (type & PERF_SAMPLE_STREAM_ID) {
814 sample->stream_id = *array;
818 if (type & PERF_SAMPLE_ID) {
823 if (type & PERF_SAMPLE_TIME) {
824 sample->time = *array;
828 if (type & PERF_SAMPLE_TID) {
831 /* undo swap of u64, then swap on individual u32s */
832 u.val64 = bswap_64(u.val64);
833 u.val32[0] = bswap_32(u.val32[0]);
834 u.val32[1] = bswap_32(u.val32[1]);
837 sample->pid = u.val32[0];
838 sample->tid = u.val32[1];
844 static bool sample_overlap(const union perf_event *event,
845 const void *offset, u64 size)
847 const void *base = event;
849 if (offset + size > base + event->header.size)
855 int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
856 struct perf_sample *data)
858 u64 type = evsel->attr.sample_type;
859 u64 regs_user = evsel->attr.sample_regs_user;
860 bool swapped = evsel->needs_swap;
864 * used for cross-endian analysis. See git commit 65014ab3
865 * for why this goofiness is needed.
869 memset(data, 0, sizeof(*data));
870 data->cpu = data->pid = data->tid = -1;
871 data->stream_id = data->id = data->time = -1ULL;
874 if (event->header.type != PERF_RECORD_SAMPLE) {
875 if (!evsel->attr.sample_id_all)
877 return perf_evsel__parse_id_sample(evsel, event, data);
880 array = event->sample.array;
882 if (evsel->sample_size + sizeof(event->header) > event->header.size)
885 if (type & PERF_SAMPLE_IP) {
886 data->ip = event->ip.ip;
890 if (type & PERF_SAMPLE_TID) {
893 /* undo swap of u64, then swap on individual u32s */
894 u.val64 = bswap_64(u.val64);
895 u.val32[0] = bswap_32(u.val32[0]);
896 u.val32[1] = bswap_32(u.val32[1]);
899 data->pid = u.val32[0];
900 data->tid = u.val32[1];
904 if (type & PERF_SAMPLE_TIME) {
910 if (type & PERF_SAMPLE_ADDR) {
916 if (type & PERF_SAMPLE_ID) {
921 if (type & PERF_SAMPLE_STREAM_ID) {
922 data->stream_id = *array;
926 if (type & PERF_SAMPLE_CPU) {
930 /* undo swap of u64, then swap on individual u32s */
931 u.val64 = bswap_64(u.val64);
932 u.val32[0] = bswap_32(u.val32[0]);
935 data->cpu = u.val32[0];
939 if (type & PERF_SAMPLE_PERIOD) {
940 data->period = *array;
944 if (type & PERF_SAMPLE_READ) {
945 fprintf(stderr, "PERF_SAMPLE_READ is unsupported for now\n");
949 if (type & PERF_SAMPLE_CALLCHAIN) {
950 if (sample_overlap(event, array, sizeof(data->callchain->nr)))
953 data->callchain = (struct ip_callchain *)array;
955 if (sample_overlap(event, array, data->callchain->nr))
958 array += 1 + data->callchain->nr;
961 if (type & PERF_SAMPLE_RAW) {
965 if (WARN_ONCE(swapped,
966 "Endianness of raw data not corrected!\n")) {
967 /* undo swap of u64, then swap on individual u32s */
968 u.val64 = bswap_64(u.val64);
969 u.val32[0] = bswap_32(u.val32[0]);
970 u.val32[1] = bswap_32(u.val32[1]);
973 if (sample_overlap(event, array, sizeof(u32)))
976 data->raw_size = u.val32[0];
977 pdata = (void *) array + sizeof(u32);
979 if (sample_overlap(event, pdata, data->raw_size))
982 data->raw_data = (void *) pdata;
984 array = (void *)array + data->raw_size + sizeof(u32);
987 if (type & PERF_SAMPLE_BRANCH_STACK) {
990 data->branch_stack = (struct branch_stack *)array;
993 sz = data->branch_stack->nr * sizeof(struct branch_entry);
998 if (type & PERF_SAMPLE_REGS_USER) {
999 /* First u64 tells us if we have any regs in sample. */
1000 u64 avail = *array++;
1003 data->user_regs.regs = (u64 *)array;
1004 array += hweight_long(regs_user);
1008 if (type & PERF_SAMPLE_STACK_USER) {
1009 u64 size = *array++;
1011 data->user_stack.offset = ((char *)(array - 1)
1015 data->user_stack.size = 0;
1017 data->user_stack.data = (char *)array;
1018 array += size / sizeof(*array);
1019 data->user_stack.size = *array;
1026 int perf_event__synthesize_sample(union perf_event *event, u64 type,
1027 const struct perf_sample *sample,
1033 * used for cross-endian analysis. See git commit 65014ab3
1034 * for why this goofiness is needed.
1038 array = event->sample.array;
1040 if (type & PERF_SAMPLE_IP) {
1041 event->ip.ip = sample->ip;
1045 if (type & PERF_SAMPLE_TID) {
1046 u.val32[0] = sample->pid;
1047 u.val32[1] = sample->tid;
1050 * Inverse of what is done in perf_evsel__parse_sample
1052 u.val32[0] = bswap_32(u.val32[0]);
1053 u.val32[1] = bswap_32(u.val32[1]);
1054 u.val64 = bswap_64(u.val64);
1061 if (type & PERF_SAMPLE_TIME) {
1062 *array = sample->time;
1066 if (type & PERF_SAMPLE_ADDR) {
1067 *array = sample->addr;
1071 if (type & PERF_SAMPLE_ID) {
1072 *array = sample->id;
1076 if (type & PERF_SAMPLE_STREAM_ID) {
1077 *array = sample->stream_id;
1081 if (type & PERF_SAMPLE_CPU) {
1082 u.val32[0] = sample->cpu;
1085 * Inverse of what is done in perf_evsel__parse_sample
1087 u.val32[0] = bswap_32(u.val32[0]);
1088 u.val64 = bswap_64(u.val64);
1094 if (type & PERF_SAMPLE_PERIOD) {
1095 *array = sample->period;
1102 struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name)
1104 return pevent_find_field(evsel->tp_format, name);
1107 void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample,
1110 struct format_field *field = perf_evsel__field(evsel, name);
1116 offset = field->offset;
1118 if (field->flags & FIELD_IS_DYNAMIC) {
1119 offset = *(int *)(sample->raw_data + field->offset);
1123 return sample->raw_data + offset;
1126 u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
1129 struct format_field *field = perf_evsel__field(evsel, name);
1136 ptr = sample->raw_data + field->offset;
1138 switch (field->size) {
1142 value = *(u16 *)ptr;
1145 value = *(u32 *)ptr;
1148 value = *(u64 *)ptr;
1154 if (!evsel->needs_swap)
1157 switch (field->size) {
1159 return bswap_16(value);
1161 return bswap_32(value);
1163 return bswap_64(value);