1 #ifndef __PERF_RECORD_H
2 #define __PERF_RECORD_H
6 #include <linux/kernel.h>
10 #include "perf_regs.h"
13 struct perf_event_header header;
18 char filename[PATH_MAX];
22 struct perf_event_header header;
33 char filename[PATH_MAX];
37 struct perf_event_header header;
42 struct namespaces_event {
43 struct perf_event_header header;
46 struct perf_ns_link_info link_info[];
50 struct perf_event_header header;
57 struct perf_event_header header;
62 struct lost_samples_event {
63 struct perf_event_header header;
68 * PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID
71 struct perf_event_header header;
79 struct throttle_event {
80 struct perf_event_header header;
86 #define PERF_SAMPLE_MASK \
87 (PERF_SAMPLE_IP | PERF_SAMPLE_TID | \
88 PERF_SAMPLE_TIME | PERF_SAMPLE_ADDR | \
89 PERF_SAMPLE_ID | PERF_SAMPLE_STREAM_ID | \
90 PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD | \
91 PERF_SAMPLE_IDENTIFIER)
93 /* perf sample has 16 bits size limit */
94 #define PERF_SAMPLE_MAX_SIZE (1 << 16)
97 struct perf_event_header header;
106 /* Cached values/mask filled by first register access. */
107 u64 cache_regs[PERF_REGS_MAX];
117 struct sample_read_value {
128 struct sample_read_value *values;
130 struct sample_read_value one;
134 struct ip_callchain {
139 struct branch_flags {
148 struct branch_entry {
151 struct branch_flags flags;
154 struct branch_stack {
156 struct branch_entry entries[0];
160 PERF_IP_FLAG_BRANCH = 1ULL << 0,
161 PERF_IP_FLAG_CALL = 1ULL << 1,
162 PERF_IP_FLAG_RETURN = 1ULL << 2,
163 PERF_IP_FLAG_CONDITIONAL = 1ULL << 3,
164 PERF_IP_FLAG_SYSCALLRET = 1ULL << 4,
165 PERF_IP_FLAG_ASYNC = 1ULL << 5,
166 PERF_IP_FLAG_INTERRUPT = 1ULL << 6,
167 PERF_IP_FLAG_TX_ABORT = 1ULL << 7,
168 PERF_IP_FLAG_TRACE_BEGIN = 1ULL << 8,
169 PERF_IP_FLAG_TRACE_END = 1ULL << 9,
170 PERF_IP_FLAG_IN_TX = 1ULL << 10,
173 #define PERF_IP_FLAG_CHARS "bcrosyiABEx"
175 #define PERF_BRANCH_MASK (\
176 PERF_IP_FLAG_BRANCH |\
178 PERF_IP_FLAG_RETURN |\
179 PERF_IP_FLAG_CONDITIONAL |\
180 PERF_IP_FLAG_SYSCALLRET |\
181 PERF_IP_FLAG_ASYNC |\
182 PERF_IP_FLAG_INTERRUPT |\
183 PERF_IP_FLAG_TX_ABORT |\
184 PERF_IP_FLAG_TRACE_BEGIN |\
185 PERF_IP_FLAG_TRACE_END)
207 struct ip_callchain *callchain;
208 struct branch_stack *branch_stack;
209 struct regs_dump user_regs;
210 struct regs_dump intr_regs;
211 struct stack_dump user_stack;
212 struct sample_read read;
215 #define PERF_MEM_DATA_SRC_NONE \
216 (PERF_MEM_S(OP, NA) |\
217 PERF_MEM_S(LVL, NA) |\
218 PERF_MEM_S(SNOOP, NA) |\
219 PERF_MEM_S(LOCK, NA) |\
222 struct build_id_event {
223 struct perf_event_header header;
225 u8 build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))];
229 enum perf_user_event_type { /* above any possible kernel type */
230 PERF_RECORD_USER_TYPE_START = 64,
231 PERF_RECORD_HEADER_ATTR = 64,
232 PERF_RECORD_HEADER_EVENT_TYPE = 65, /* deprecated */
233 PERF_RECORD_HEADER_TRACING_DATA = 66,
234 PERF_RECORD_HEADER_BUILD_ID = 67,
235 PERF_RECORD_FINISHED_ROUND = 68,
236 PERF_RECORD_ID_INDEX = 69,
237 PERF_RECORD_AUXTRACE_INFO = 70,
238 PERF_RECORD_AUXTRACE = 71,
239 PERF_RECORD_AUXTRACE_ERROR = 72,
240 PERF_RECORD_THREAD_MAP = 73,
241 PERF_RECORD_CPU_MAP = 74,
242 PERF_RECORD_STAT_CONFIG = 75,
243 PERF_RECORD_STAT = 76,
244 PERF_RECORD_STAT_ROUND = 77,
245 PERF_RECORD_EVENT_UPDATE = 78,
246 PERF_RECORD_TIME_CONV = 79,
247 PERF_RECORD_HEADER_MAX
250 enum auxtrace_error_type {
251 PERF_AUXTRACE_ERROR_ITRACE = 1,
252 PERF_AUXTRACE_ERROR_MAX
255 /* Attribute type for custom synthesized events */
256 #define PERF_TYPE_SYNTH (INT_MAX + 1U)
259 * The kernel collects the number of events it couldn't send in a stretch and
260 * when possible sends this number in a PERF_RECORD_LOST event. The number of
261 * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
262 * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
263 * the sum of all struct lost_event.lost fields reported.
265 * The kernel discards mixed up samples and sends the number in a
266 * PERF_RECORD_LOST_SAMPLES event. The number of lost-samples events is stored
267 * in .nr_events[PERF_RECORD_LOST_SAMPLES] while total_lost_samples tells
268 * exactly how many samples the kernel in fact dropped, i.e. it is the sum of
269 * all struct lost_samples_event.lost fields reported.
271 * The total_period is needed because by default auto-freq is used, so
272 * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
273 * the total number of low level events, it is necessary to to sum all struct
274 * sample_event.period and stash the result in total_period.
276 struct events_stats {
278 u64 total_non_filtered_period;
280 u64 total_lost_samples;
282 u64 total_aux_partial;
283 u64 total_invalid_chains;
284 u32 nr_events[PERF_RECORD_HEADER_MAX];
285 u32 nr_non_filtered_samples;
287 u32 nr_unknown_events;
288 u32 nr_invalid_chains;
290 u32 nr_unprocessable_samples;
291 u32 nr_auxtrace_errors[PERF_AUXTRACE_ERROR_MAX];
292 u32 nr_proc_map_timeout;
296 PERF_CPU_MAP__CPUS = 0,
297 PERF_CPU_MAP__MASK = 1,
300 struct cpu_map_entries {
305 struct cpu_map_mask {
308 unsigned long mask[];
311 struct cpu_map_data {
316 struct cpu_map_event {
317 struct perf_event_header header;
318 struct cpu_map_data data;
322 struct perf_event_header header;
323 struct perf_event_attr attr;
328 PERF_EVENT_UPDATE__UNIT = 0,
329 PERF_EVENT_UPDATE__SCALE = 1,
330 PERF_EVENT_UPDATE__NAME = 2,
331 PERF_EVENT_UPDATE__CPUS = 3,
334 struct event_update_event_cpus {
335 struct cpu_map_data cpus;
338 struct event_update_event_scale {
342 struct event_update_event {
343 struct perf_event_header header;
350 #define MAX_EVENT_NAME 64
352 struct perf_trace_event_type {
354 char name[MAX_EVENT_NAME];
357 struct event_type_event {
358 struct perf_event_header header;
359 struct perf_trace_event_type event_type;
362 struct tracing_data_event {
363 struct perf_event_header header;
367 struct id_index_entry {
374 struct id_index_event {
375 struct perf_event_header header;
377 struct id_index_entry entries[0];
380 struct auxtrace_info_event {
381 struct perf_event_header header;
383 u32 reserved__; /* For alignment */
387 struct auxtrace_event {
388 struct perf_event_header header;
395 u32 reserved__; /* For alignment */
398 #define MAX_AUXTRACE_ERROR_MSG 64
400 struct auxtrace_error_event {
401 struct perf_event_header header;
407 u32 reserved__; /* For alignment */
409 char msg[MAX_AUXTRACE_ERROR_MSG];
413 struct perf_event_header header;
419 struct itrace_start_event {
420 struct perf_event_header header;
424 struct context_switch_event {
425 struct perf_event_header header;
430 struct thread_map_event_entry {
435 struct thread_map_event {
436 struct perf_event_header header;
438 struct thread_map_event_entry entries[];
442 PERF_STAT_CONFIG_TERM__AGGR_MODE = 0,
443 PERF_STAT_CONFIG_TERM__INTERVAL = 1,
444 PERF_STAT_CONFIG_TERM__SCALE = 2,
445 PERF_STAT_CONFIG_TERM__MAX = 3,
448 struct stat_config_event_entry {
453 struct stat_config_event {
454 struct perf_event_header header;
456 struct stat_config_event_entry data[];
460 struct perf_event_header header;
477 PERF_STAT_ROUND_TYPE__INTERVAL = 0,
478 PERF_STAT_ROUND_TYPE__FINAL = 1,
481 struct stat_round_event {
482 struct perf_event_header header;
487 struct time_conv_event {
488 struct perf_event_header header;
495 struct perf_event_header header;
496 struct mmap_event mmap;
497 struct mmap2_event mmap2;
498 struct comm_event comm;
499 struct namespaces_event namespaces;
500 struct fork_event fork;
501 struct lost_event lost;
502 struct lost_samples_event lost_samples;
503 struct read_event read;
504 struct throttle_event throttle;
505 struct sample_event sample;
506 struct attr_event attr;
507 struct event_update_event event_update;
508 struct event_type_event event_type;
509 struct tracing_data_event tracing_data;
510 struct build_id_event build_id;
511 struct id_index_event id_index;
512 struct auxtrace_info_event auxtrace_info;
513 struct auxtrace_event auxtrace;
514 struct auxtrace_error_event auxtrace_error;
515 struct aux_event aux;
516 struct itrace_start_event itrace_start;
517 struct context_switch_event context_switch;
518 struct thread_map_event thread_map;
519 struct cpu_map_event cpu_map;
520 struct stat_config_event stat_config;
521 struct stat_event stat;
522 struct stat_round_event stat_round;
523 struct time_conv_event time_conv;
526 void perf_event__print_totals(void);
531 struct perf_stat_config;
532 struct perf_counts_values;
534 typedef int (*perf_event__handler_t)(struct perf_tool *tool,
535 union perf_event *event,
536 struct perf_sample *sample,
537 struct machine *machine);
539 int perf_event__synthesize_thread_map(struct perf_tool *tool,
540 struct thread_map *threads,
541 perf_event__handler_t process,
542 struct machine *machine, bool mmap_data,
543 unsigned int proc_map_timeout);
544 int perf_event__synthesize_thread_map2(struct perf_tool *tool,
545 struct thread_map *threads,
546 perf_event__handler_t process,
547 struct machine *machine);
548 int perf_event__synthesize_cpu_map(struct perf_tool *tool,
549 struct cpu_map *cpus,
550 perf_event__handler_t process,
551 struct machine *machine);
552 int perf_event__synthesize_threads(struct perf_tool *tool,
553 perf_event__handler_t process,
554 struct machine *machine, bool mmap_data,
555 unsigned int proc_map_timeout);
556 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
557 perf_event__handler_t process,
558 struct machine *machine);
559 int perf_event__synthesize_stat_config(struct perf_tool *tool,
560 struct perf_stat_config *config,
561 perf_event__handler_t process,
562 struct machine *machine);
563 void perf_event__read_stat_config(struct perf_stat_config *config,
564 struct stat_config_event *event);
565 int perf_event__synthesize_stat(struct perf_tool *tool,
566 u32 cpu, u32 thread, u64 id,
567 struct perf_counts_values *count,
568 perf_event__handler_t process,
569 struct machine *machine);
570 int perf_event__synthesize_stat_round(struct perf_tool *tool,
572 perf_event__handler_t process,
573 struct machine *machine);
574 int perf_event__synthesize_modules(struct perf_tool *tool,
575 perf_event__handler_t process,
576 struct machine *machine);
578 int perf_event__process_comm(struct perf_tool *tool,
579 union perf_event *event,
580 struct perf_sample *sample,
581 struct machine *machine);
582 int perf_event__process_lost(struct perf_tool *tool,
583 union perf_event *event,
584 struct perf_sample *sample,
585 struct machine *machine);
586 int perf_event__process_lost_samples(struct perf_tool *tool,
587 union perf_event *event,
588 struct perf_sample *sample,
589 struct machine *machine);
590 int perf_event__process_aux(struct perf_tool *tool,
591 union perf_event *event,
592 struct perf_sample *sample,
593 struct machine *machine);
594 int perf_event__process_itrace_start(struct perf_tool *tool,
595 union perf_event *event,
596 struct perf_sample *sample,
597 struct machine *machine);
598 int perf_event__process_switch(struct perf_tool *tool,
599 union perf_event *event,
600 struct perf_sample *sample,
601 struct machine *machine);
602 int perf_event__process_namespaces(struct perf_tool *tool,
603 union perf_event *event,
604 struct perf_sample *sample,
605 struct machine *machine);
606 int perf_event__process_mmap(struct perf_tool *tool,
607 union perf_event *event,
608 struct perf_sample *sample,
609 struct machine *machine);
610 int perf_event__process_mmap2(struct perf_tool *tool,
611 union perf_event *event,
612 struct perf_sample *sample,
613 struct machine *machine);
614 int perf_event__process_fork(struct perf_tool *tool,
615 union perf_event *event,
616 struct perf_sample *sample,
617 struct machine *machine);
618 int perf_event__process_exit(struct perf_tool *tool,
619 union perf_event *event,
620 struct perf_sample *sample,
621 struct machine *machine);
622 int perf_event__process(struct perf_tool *tool,
623 union perf_event *event,
624 struct perf_sample *sample,
625 struct machine *machine);
627 struct addr_location;
629 int machine__resolve(struct machine *machine, struct addr_location *al,
630 struct perf_sample *sample);
632 void addr_location__put(struct addr_location *al);
636 bool is_bts_event(struct perf_event_attr *attr);
637 bool sample_addr_correlates_sym(struct perf_event_attr *attr);
638 void thread__resolve(struct thread *thread, struct addr_location *al,
639 struct perf_sample *sample);
641 const char *perf_event__name(unsigned int id);
643 size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type,
645 int perf_event__synthesize_sample(union perf_event *event, u64 type,
647 const struct perf_sample *sample,
650 pid_t perf_event__synthesize_comm(struct perf_tool *tool,
651 union perf_event *event, pid_t pid,
652 perf_event__handler_t process,
653 struct machine *machine);
655 int perf_event__synthesize_namespaces(struct perf_tool *tool,
656 union perf_event *event,
657 pid_t pid, pid_t tgid,
658 perf_event__handler_t process,
659 struct machine *machine);
661 int perf_event__synthesize_mmap_events(struct perf_tool *tool,
662 union perf_event *event,
663 pid_t pid, pid_t tgid,
664 perf_event__handler_t process,
665 struct machine *machine,
667 unsigned int proc_map_timeout);
669 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
670 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
671 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
672 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
673 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
674 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
675 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
676 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp);
677 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp);
678 size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp);
679 size_t perf_event__fprintf(union perf_event *event, FILE *fp);
681 int kallsyms__get_function_start(const char *kallsyms_filename,
682 const char *symbol_name, u64 *addr);
684 void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max);
685 void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map,
688 void event_attr_init(struct perf_event_attr *attr);
690 int perf_event_paranoid(void);
692 extern int sysctl_perf_event_max_stack;
693 extern int sysctl_perf_event_max_contexts_per_stack;
695 #endif /* __PERF_RECORD_H */