tools/perf/util/event.h

   1 #ifndef __PERF_RECORD_H
   2 #define __PERF_RECORD_H
   3
   4 #include <limits.h>
   5 #include <stdio.h>
   6
   7 #include "../perf.h"
   8 #include "map.h"
   9 #include "build-id.h"
  10 #include "perf_regs.h"
  11
  12 struct mmap_event {
  13         struct perf_event_header header;
  14         u32 pid, tid;
  15         u64 start;
  16         u64 len;
  17         u64 pgoff;
  18         char filename[PATH_MAX];
  19 };
  20
  21 struct mmap2_event {
  22         struct perf_event_header header;
  23         u32 pid, tid;
  24         u64 start;
  25         u64 len;
  26         u64 pgoff;
  27         u32 maj;
  28         u32 min;
  29         u64 ino;
  30         u64 ino_generation;
  31         u32 prot;
  32         u32 flags;
  33         char filename[PATH_MAX];
  34 };
  35
  36 struct comm_event {
  37         struct perf_event_header header;
  38         u32 pid, tid;
  39         char comm[16];
  40 };
  41
  42 struct fork_event {
  43         struct perf_event_header header;
  44         u32 pid, ppid;
  45         u32 tid, ptid;
  46         u64 time;
  47 };
  48
  49 struct lost_event {
  50         struct perf_event_header header;
  51         u64 id;
  52         u64 lost;
  53 };
  54
  55 struct lost_samples_event {
  56         struct perf_event_header header;
  57         u64 lost;
  58 };
  59
  60 /*
  61  * PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID
  62  */
  63 struct read_event {
  64         struct perf_event_header header;
  65         u32 pid, tid;
  66         u64 value;
  67         u64 time_enabled;
  68         u64 time_running;
  69         u64 id;
  70 };
  71
  72 struct throttle_event {
  73         struct perf_event_header header;
  74         u64 time;
  75         u64 id;
  76         u64 stream_id;
  77 };
  78
  79 #define PERF_SAMPLE_MASK                                \
  80         (PERF_SAMPLE_IP | PERF_SAMPLE_TID |             \
  81          PERF_SAMPLE_TIME | PERF_SAMPLE_ADDR |          \
  82         PERF_SAMPLE_ID | PERF_SAMPLE_STREAM_ID |        \
  83          PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD |         \
  84          PERF_SAMPLE_IDENTIFIER)
  85
  86 /* perf sample has 16 bits size limit */
  87 #define PERF_SAMPLE_MAX_SIZE (1 << 16)
  88
  89 struct sample_event {
  90         struct perf_event_header        header;
  91         u64 array[];
  92 };
  93
  94 struct regs_dump {
  95         u64 abi;
  96         u64 mask;
  97         u64 *regs;
  98
  99         /* Cached values/mask filled by first register access. */
 100         u64 cache_regs[PERF_REGS_MAX];
 101         u64 cache_mask;
 102 };
 103
 104 struct stack_dump {
 105         u16 offset;
 106         u64 size;
 107         char *data;
 108 };
 109
 110 struct sample_read_value {
 111         u64 value;
 112         u64 id;
 113 };
 114
 115 struct sample_read {
 116         u64 time_enabled;
 117         u64 time_running;
 118         union {
 119                 struct {
 120                         u64 nr;
 121                         struct sample_read_value *values;
 122                 } group;
 123                 struct sample_read_value one;
 124         };
 125 };
 126
 127 struct ip_callchain {
 128         u64 nr;
 129         u64 ips[0];
 130 };
 131
 132 struct branch_flags {
 133         u64 mispred:1;
 134         u64 predicted:1;
 135         u64 in_tx:1;
 136         u64 abort:1;
 137         u64 cycles:16;
 138         u64 reserved:44;
 139 };
 140
 141 struct branch_entry {
 142         u64                     from;
 143         u64                     to;
 144         struct branch_flags     flags;
 145 };
 146
 147 struct branch_stack {
 148         u64                     nr;
 149         struct branch_entry     entries[0];
 150 };
 151
 152 enum {
 153         PERF_IP_FLAG_BRANCH             = 1ULL << 0,
 154         PERF_IP_FLAG_CALL               = 1ULL << 1,
 155         PERF_IP_FLAG_RETURN             = 1ULL << 2,
 156         PERF_IP_FLAG_CONDITIONAL        = 1ULL << 3,
 157         PERF_IP_FLAG_SYSCALLRET         = 1ULL << 4,
 158         PERF_IP_FLAG_ASYNC              = 1ULL << 5,
 159         PERF_IP_FLAG_INTERRUPT          = 1ULL << 6,
 160         PERF_IP_FLAG_TX_ABORT           = 1ULL << 7,
 161         PERF_IP_FLAG_TRACE_BEGIN        = 1ULL << 8,
 162         PERF_IP_FLAG_TRACE_END          = 1ULL << 9,
 163         PERF_IP_FLAG_IN_TX              = 1ULL << 10,
 164 };
 165
 166 #define PERF_IP_FLAG_CHARS "bcrosyiABEx"
 167
 168 #define PERF_BRANCH_MASK                (\
 169         PERF_IP_FLAG_BRANCH             |\
 170         PERF_IP_FLAG_CALL               |\
 171         PERF_IP_FLAG_RETURN             |\
 172         PERF_IP_FLAG_CONDITIONAL        |\
 173         PERF_IP_FLAG_SYSCALLRET         |\
 174         PERF_IP_FLAG_ASYNC              |\
 175         PERF_IP_FLAG_INTERRUPT          |\
 176         PERF_IP_FLAG_TX_ABORT           |\
 177         PERF_IP_FLAG_TRACE_BEGIN        |\
 178         PERF_IP_FLAG_TRACE_END)
 179
 180 #define MAX_INSN 16
 181
 182 struct perf_sample {
 183         u64 ip;
 184         u32 pid, tid;
 185         u64 time;
 186         u64 addr;
 187         u64 id;
 188         u64 stream_id;
 189         u64 period;
 190         u64 weight;
 191         u64 transaction;
 192         u32 cpu;
 193         u32 raw_size;
 194         u64 data_src;
 195         u32 flags;
 196         u16 insn_len;
 197         u8  cpumode;
 198         char insn[MAX_INSN];
 199         void *raw_data;
 200         struct ip_callchain *callchain;
 201         struct branch_stack *branch_stack;
 202         struct regs_dump  user_regs;
 203         struct regs_dump  intr_regs;
 204         struct stack_dump user_stack;
 205         struct sample_read read;
 206 };
 207
 208 #define PERF_MEM_DATA_SRC_NONE \
 209         (PERF_MEM_S(OP, NA) |\
 210          PERF_MEM_S(LVL, NA) |\
 211          PERF_MEM_S(SNOOP, NA) |\
 212          PERF_MEM_S(LOCK, NA) |\
 213          PERF_MEM_S(TLB, NA))
 214
 215 struct build_id_event {
 216         struct perf_event_header header;
 217         pid_t                    pid;
 218         u8                       build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))];
 219         char                     filename[];
 220 };
 221
 222 enum perf_user_event_type { /* above any possible kernel type */
 223         PERF_RECORD_USER_TYPE_START             = 64,
 224         PERF_RECORD_HEADER_ATTR                 = 64,
 225         PERF_RECORD_HEADER_EVENT_TYPE           = 65, /* depreceated */
 226         PERF_RECORD_HEADER_TRACING_DATA         = 66,
 227         PERF_RECORD_HEADER_BUILD_ID             = 67,
 228         PERF_RECORD_FINISHED_ROUND              = 68,
 229         PERF_RECORD_ID_INDEX                    = 69,
 230         PERF_RECORD_AUXTRACE_INFO               = 70,
 231         PERF_RECORD_AUXTRACE                    = 71,
 232         PERF_RECORD_AUXTRACE_ERROR              = 72,
 233         PERF_RECORD_THREAD_MAP                  = 73,
 234         PERF_RECORD_CPU_MAP                     = 74,
 235         PERF_RECORD_STAT_CONFIG                 = 75,
 236         PERF_RECORD_STAT                        = 76,
 237         PERF_RECORD_STAT_ROUND                  = 77,
 238         PERF_RECORD_EVENT_UPDATE                = 78,
 239         PERF_RECORD_TIME_CONV                   = 79,
 240         PERF_RECORD_HEADER_MAX
 241 };
 242
 243 enum auxtrace_error_type {
 244         PERF_AUXTRACE_ERROR_ITRACE  = 1,
 245         PERF_AUXTRACE_ERROR_MAX
 246 };
 247
 248 /*
 249  * The kernel collects the number of events it couldn't send in a stretch and
 250  * when possible sends this number in a PERF_RECORD_LOST event. The number of
 251  * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
 252  * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
 253  * the sum of all struct lost_event.lost fields reported.
 254  *
 255  * The kernel discards mixed up samples and sends the number in a
 256  * PERF_RECORD_LOST_SAMPLES event. The number of lost-samples events is stored
 257  * in .nr_events[PERF_RECORD_LOST_SAMPLES] while total_lost_samples tells
 258  * exactly how many samples the kernel in fact dropped, i.e. it is the sum of
 259  * all struct lost_samples_event.lost fields reported.
 260  *
 261  * The total_period is needed because by default auto-freq is used, so
 262  * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
 263  * the total number of low level events, it is necessary to to sum all struct
 264  * sample_event.period and stash the result in total_period.
 265  */
 266 struct events_stats {
 267         u64 total_period;
 268         u64 total_non_filtered_period;
 269         u64 total_lost;
 270         u64 total_lost_samples;
 271         u64 total_aux_lost;
 272         u64 total_invalid_chains;
 273         u32 nr_events[PERF_RECORD_HEADER_MAX];
 274         u32 nr_non_filtered_samples;
 275         u32 nr_lost_warned;
 276         u32 nr_unknown_events;
 277         u32 nr_invalid_chains;
 278         u32 nr_unknown_id;
 279         u32 nr_unprocessable_samples;
 280         u32 nr_auxtrace_errors[PERF_AUXTRACE_ERROR_MAX];
 281         u32 nr_proc_map_timeout;
 282 };
 283
 284 enum {
 285         PERF_CPU_MAP__CPUS = 0,
 286         PERF_CPU_MAP__MASK = 1,
 287 };
 288
 289 struct cpu_map_entries {
 290         u16     nr;
 291         u16     cpu[];
 292 };
 293
 294 struct cpu_map_mask {
 295         u16     nr;
 296         u16     long_size;
 297         unsigned long mask[];
 298 };
 299
 300 struct cpu_map_data {
 301         u16     type;
 302         char    data[];
 303 };
 304
 305 struct cpu_map_event {
 306         struct perf_event_header        header;
 307         struct cpu_map_data             data;
 308 };
 309
 310 struct attr_event {
 311         struct perf_event_header header;
 312         struct perf_event_attr attr;
 313         u64 id[];
 314 };
 315
 316 enum {
 317         PERF_EVENT_UPDATE__UNIT  = 0,
 318         PERF_EVENT_UPDATE__SCALE = 1,
 319         PERF_EVENT_UPDATE__NAME  = 2,
 320         PERF_EVENT_UPDATE__CPUS  = 3,
 321 };
 322
 323 struct event_update_event_cpus {
 324         struct cpu_map_data cpus;
 325 };
 326
 327 struct event_update_event_scale {
 328         double scale;
 329 };
 330
 331 struct event_update_event {
 332         struct perf_event_header header;
 333         u64 type;
 334         u64 id;
 335
 336         char data[];
 337 };
 338
 339 #define MAX_EVENT_NAME 64
 340
 341 struct perf_trace_event_type {
 342         u64     event_id;
 343         char    name[MAX_EVENT_NAME];
 344 };
 345
 346 struct event_type_event {
 347         struct perf_event_header header;
 348         struct perf_trace_event_type event_type;
 349 };
 350
 351 struct tracing_data_event {
 352         struct perf_event_header header;
 353         u32 size;
 354 };
 355
 356 struct id_index_entry {
 357         u64 id;
 358         u64 idx;
 359         u64 cpu;
 360         u64 tid;
 361 };
 362
 363 struct id_index_event {
 364         struct perf_event_header header;
 365         u64 nr;
 366         struct id_index_entry entries[0];
 367 };
 368
 369 struct auxtrace_info_event {
 370         struct perf_event_header header;
 371         u32 type;
 372         u32 reserved__; /* For alignment */
 373         u64 priv[];
 374 };
 375
 376 struct auxtrace_event {
 377         struct perf_event_header header;
 378         u64 size;
 379         u64 offset;
 380         u64 reference;
 381         u32 idx;
 382         u32 tid;
 383         u32 cpu;
 384         u32 reserved__; /* For alignment */
 385 };
 386
 387 #define MAX_AUXTRACE_ERROR_MSG 64
 388
 389 struct auxtrace_error_event {
 390         struct perf_event_header header;
 391         u32 type;
 392         u32 code;
 393         u32 cpu;
 394         u32 pid;
 395         u32 tid;
 396         u32 reserved__; /* For alignment */
 397         u64 ip;
 398         char msg[MAX_AUXTRACE_ERROR_MSG];
 399 };
 400
 401 struct aux_event {
 402         struct perf_event_header header;
 403         u64     aux_offset;
 404         u64     aux_size;
 405         u64     flags;
 406 };
 407
 408 struct itrace_start_event {
 409         struct perf_event_header header;
 410         u32 pid, tid;
 411 };
 412
 413 struct context_switch_event {
 414         struct perf_event_header header;
 415         u32 next_prev_pid;
 416         u32 next_prev_tid;
 417 };
 418
 419 struct thread_map_event_entry {
 420         u64     pid;
 421         char    comm[16];
 422 };
 423
 424 struct thread_map_event {
 425         struct perf_event_header        header;
 426         u64                             nr;
 427         struct thread_map_event_entry   entries[];
 428 };
 429
 430 enum {
 431         PERF_STAT_CONFIG_TERM__AGGR_MODE        = 0,
 432         PERF_STAT_CONFIG_TERM__INTERVAL         = 1,
 433         PERF_STAT_CONFIG_TERM__SCALE            = 2,
 434         PERF_STAT_CONFIG_TERM__MAX              = 3,
 435 };
 436
 437 struct stat_config_event_entry {
 438         u64     tag;
 439         u64     val;
 440 };
 441
 442 struct stat_config_event {
 443         struct perf_event_header        header;
 444         u64                             nr;
 445         struct stat_config_event_entry  data[];
 446 };
 447
 448 struct stat_event {
 449         struct perf_event_header        header;
 450
 451         u64     id;
 452         u32     cpu;
 453         u32     thread;
 454
 455         union {
 456                 struct {
 457                         u64 val;
 458                         u64 ena;
 459                         u64 run;
 460                 };
 461                 u64 values[3];
 462         };
 463 };
 464
 465 enum {
 466         PERF_STAT_ROUND_TYPE__INTERVAL  = 0,
 467         PERF_STAT_ROUND_TYPE__FINAL     = 1,
 468 };
 469
 470 struct stat_round_event {
 471         struct perf_event_header        header;
 472         u64                             type;
 473         u64                             time;
 474 };
 475
 476 struct time_conv_event {
 477         struct perf_event_header header;
 478         u64 time_shift;
 479         u64 time_mult;
 480         u64 time_zero;
 481 };
 482
 483 union perf_event {
 484         struct perf_event_header        header;
 485         struct mmap_event               mmap;
 486         struct mmap2_event              mmap2;
 487         struct comm_event               comm;
 488         struct fork_event               fork;
 489         struct lost_event               lost;
 490         struct lost_samples_event       lost_samples;
 491         struct read_event               read;
 492         struct throttle_event           throttle;
 493         struct sample_event             sample;
 494         struct attr_event               attr;
 495         struct event_update_event       event_update;
 496         struct event_type_event         event_type;
 497         struct tracing_data_event       tracing_data;
 498         struct build_id_event           build_id;
 499         struct id_index_event           id_index;
 500         struct auxtrace_info_event      auxtrace_info;
 501         struct auxtrace_event           auxtrace;
 502         struct auxtrace_error_event     auxtrace_error;
 503         struct aux_event                aux;
 504         struct itrace_start_event       itrace_start;
 505         struct context_switch_event     context_switch;
 506         struct thread_map_event         thread_map;
 507         struct cpu_map_event            cpu_map;
 508         struct stat_config_event        stat_config;
 509         struct stat_event               stat;
 510         struct stat_round_event         stat_round;
 511         struct time_conv_event          time_conv;
 512 };
 513
 514 void perf_event__print_totals(void);
 515
 516 struct perf_tool;
 517 struct thread_map;
 518 struct cpu_map;
 519 struct perf_stat_config;
 520 struct perf_counts_values;
 521
 522 typedef int (*perf_event__handler_t)(struct perf_tool *tool,
 523                                      union perf_event *event,
 524                                      struct perf_sample *sample,
 525                                      struct machine *machine);
 526
 527 int perf_event__synthesize_thread_map(struct perf_tool *tool,
 528                                       struct thread_map *threads,
 529                                       perf_event__handler_t process,
 530                                       struct machine *machine, bool mmap_data,
 531                                       unsigned int proc_map_timeout);
 532 int perf_event__synthesize_thread_map2(struct perf_tool *tool,
 533                                       struct thread_map *threads,
 534                                       perf_event__handler_t process,
 535                                       struct machine *machine);
 536 int perf_event__synthesize_cpu_map(struct perf_tool *tool,
 537                                    struct cpu_map *cpus,
 538                                    perf_event__handler_t process,
 539                                    struct machine *machine);
 540 int perf_event__synthesize_threads(struct perf_tool *tool,
 541                                    perf_event__handler_t process,
 542                                    struct machine *machine, bool mmap_data,
 543                                    unsigned int proc_map_timeout);
 544 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
 545                                        perf_event__handler_t process,
 546                                        struct machine *machine);
 547 int perf_event__synthesize_stat_config(struct perf_tool *tool,
 548                                        struct perf_stat_config *config,
 549                                        perf_event__handler_t process,
 550                                        struct machine *machine);
 551 void perf_event__read_stat_config(struct perf_stat_config *config,
 552                                   struct stat_config_event *event);
 553 int perf_event__synthesize_stat(struct perf_tool *tool,
 554                                 u32 cpu, u32 thread, u64 id,
 555                                 struct perf_counts_values *count,
 556                                 perf_event__handler_t process,
 557                                 struct machine *machine);
 558 int perf_event__synthesize_stat_round(struct perf_tool *tool,
 559                                       u64 time, u64 type,
 560                                       perf_event__handler_t process,
 561                                       struct machine *machine);
 562 int perf_event__synthesize_modules(struct perf_tool *tool,
 563                                    perf_event__handler_t process,
 564                                    struct machine *machine);
 565
 566 int perf_event__process_comm(struct perf_tool *tool,
 567                              union perf_event *event,
 568                              struct perf_sample *sample,
 569                              struct machine *machine);
 570 int perf_event__process_lost(struct perf_tool *tool,
 571                              union perf_event *event,
 572                              struct perf_sample *sample,
 573                              struct machine *machine);
 574 int perf_event__process_lost_samples(struct perf_tool *tool,
 575                                      union perf_event *event,
 576                                      struct perf_sample *sample,
 577                                      struct machine *machine);
 578 int perf_event__process_aux(struct perf_tool *tool,
 579                             union perf_event *event,
 580                             struct perf_sample *sample,
 581                             struct machine *machine);
 582 int perf_event__process_itrace_start(struct perf_tool *tool,
 583                                      union perf_event *event,
 584                                      struct perf_sample *sample,
 585                                      struct machine *machine);
 586 int perf_event__process_switch(struct perf_tool *tool,
 587                                union perf_event *event,
 588                                struct perf_sample *sample,
 589                                struct machine *machine);
 590 int perf_event__process_mmap(struct perf_tool *tool,
 591                              union perf_event *event,
 592                              struct perf_sample *sample,
 593                              struct machine *machine);
 594 int perf_event__process_mmap2(struct perf_tool *tool,
 595                              union perf_event *event,
 596                              struct perf_sample *sample,
 597                              struct machine *machine);
 598 int perf_event__process_fork(struct perf_tool *tool,
 599                              union perf_event *event,
 600                              struct perf_sample *sample,
 601                              struct machine *machine);
 602 int perf_event__process_exit(struct perf_tool *tool,
 603                              union perf_event *event,
 604                              struct perf_sample *sample,
 605                              struct machine *machine);
 606 int perf_event__process(struct perf_tool *tool,
 607                         union perf_event *event,
 608                         struct perf_sample *sample,
 609                         struct machine *machine);
 610
 611 struct addr_location;
 612
 613 int machine__resolve(struct machine *machine, struct addr_location *al,
 614                      struct perf_sample *sample);
 615
 616 void addr_location__put(struct addr_location *al);
 617
 618 struct thread;
 619
 620 bool is_bts_event(struct perf_event_attr *attr);
 621 bool sample_addr_correlates_sym(struct perf_event_attr *attr);
 622 void thread__resolve(struct thread *thread, struct addr_location *al,
 623                      struct perf_sample *sample);
 624
 625 const char *perf_event__name(unsigned int id);
 626
 627 size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type,
 628                                      u64 read_format);
 629 int perf_event__synthesize_sample(union perf_event *event, u64 type,
 630                                   u64 read_format,
 631                                   const struct perf_sample *sample,
 632                                   bool swapped);
 633
 634 pid_t perf_event__synthesize_comm(struct perf_tool *tool,
 635                                   union perf_event *event, pid_t pid,
 636                                   perf_event__handler_t process,
 637                                   struct machine *machine);
 638
 639 int perf_event__synthesize_mmap_events(struct perf_tool *tool,
 640                                        union perf_event *event,
 641                                        pid_t pid, pid_t tgid,
 642                                        perf_event__handler_t process,
 643                                        struct machine *machine,
 644                                        bool mmap_data,
 645                                        unsigned int proc_map_timeout);
 646
 647 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
 648 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
 649 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
 650 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
 651 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
 652 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
 653 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
 654 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp);
 655 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp);
 656 size_t perf_event__fprintf(union perf_event *event, FILE *fp);
 657
 658 u64 kallsyms__get_function_start(const char *kallsyms_filename,
 659                                  const char *symbol_name);
 660
 661 void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max);
 662 void  cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map,
 663                                u16 type, int max);
 664 #endif /* __PERF_RECORD_H */