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 #include <linux/kernel.h>
   7
   8 #include "../perf.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 namespaces_event {
  43         struct perf_event_header header;
  44         u32 pid, tid;
  45         u64 nr_namespaces;
  46         struct perf_ns_link_info link_info[];
  47 };
  48
  49 struct fork_event {
  50         struct perf_event_header header;
  51         u32 pid, ppid;
  52         u32 tid, ptid;
  53         u64 time;
  54 };
  55
  56 struct lost_event {
  57         struct perf_event_header header;
  58         u64 id;
  59         u64 lost;
  60 };
  61
  62 struct lost_samples_event {
  63         struct perf_event_header header;
  64         u64 lost;
  65 };
  66
  67 /*
  68  * PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID
  69  */
  70 struct read_event {
  71         struct perf_event_header header;
  72         u32 pid, tid;
  73         u64 value;
  74         u64 time_enabled;
  75         u64 time_running;
  76         u64 id;
  77 };
  78
  79 struct throttle_event {
  80         struct perf_event_header header;
  81         u64 time;
  82         u64 id;
  83         u64 stream_id;
  84 };
  85
  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)
  92
  93 /* perf sample has 16 bits size limit */
  94 #define PERF_SAMPLE_MAX_SIZE (1 << 16)
  95
  96 struct sample_event {
  97         struct perf_event_header        header;
  98         u64 array[];
  99 };
 100
 101 struct regs_dump {
 102         u64 abi;
 103         u64 mask;
 104         u64 *regs;
 105
 106         /* Cached values/mask filled by first register access. */
 107         u64 cache_regs[PERF_REGS_MAX];
 108         u64 cache_mask;
 109 };
 110
 111 struct stack_dump {
 112         u16 offset;
 113         u64 size;
 114         char *data;
 115 };
 116
 117 struct sample_read_value {
 118         u64 value;
 119         u64 id;
 120 };
 121
 122 struct sample_read {
 123         u64 time_enabled;
 124         u64 time_running;
 125         union {
 126                 struct {
 127                         u64 nr;
 128                         struct sample_read_value *values;
 129                 } group;
 130                 struct sample_read_value one;
 131         };
 132 };
 133
 134 struct ip_callchain {
 135         u64 nr;
 136         u64 ips[0];
 137 };
 138
 139 struct branch_flags {
 140         u64 mispred:1;
 141         u64 predicted:1;
 142         u64 in_tx:1;
 143         u64 abort:1;
 144         u64 cycles:16;
 145         u64 reserved:44;
 146 };
 147
 148 struct branch_entry {
 149         u64                     from;
 150         u64                     to;
 151         struct branch_flags     flags;
 152 };
 153
 154 struct branch_stack {
 155         u64                     nr;
 156         struct branch_entry     entries[0];
 157 };
 158
 159 enum {
 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,
 171 };
 172
 173 #define PERF_IP_FLAG_CHARS "bcrosyiABEx"
 174
 175 #define PERF_BRANCH_MASK                (\
 176         PERF_IP_FLAG_BRANCH             |\
 177         PERF_IP_FLAG_CALL               |\
 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)
 186
 187 #define MAX_INSN 16
 188
 189 struct perf_sample {
 190         u64 ip;
 191         u32 pid, tid;
 192         u64 time;
 193         u64 addr;
 194         u64 id;
 195         u64 stream_id;
 196         u64 period;
 197         u64 weight;
 198         u64 transaction;
 199         u32 cpu;
 200         u32 raw_size;
 201         u64 data_src;
 202         u32 flags;
 203         u16 insn_len;
 204         u8  cpumode;
 205         char insn[MAX_INSN];
 206         void *raw_data;
 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;
 213 };
 214
 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) |\
 220          PERF_MEM_S(TLB, NA))
 221
 222 struct build_id_event {
 223         struct perf_event_header header;
 224         pid_t                    pid;
 225         u8                       build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))];
 226         char                     filename[];
 227 };
 228
 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, /* depreceated */
 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
 248 };
 249
 250 enum auxtrace_error_type {
 251         PERF_AUXTRACE_ERROR_ITRACE  = 1,
 252         PERF_AUXTRACE_ERROR_MAX
 253 };
 254
 255 /*
 256  * The kernel collects the number of events it couldn't send in a stretch and
 257  * when possible sends this number in a PERF_RECORD_LOST event. The number of
 258  * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
 259  * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
 260  * the sum of all struct lost_event.lost fields reported.
 261  *
 262  * The kernel discards mixed up samples and sends the number in a
 263  * PERF_RECORD_LOST_SAMPLES event. The number of lost-samples events is stored
 264  * in .nr_events[PERF_RECORD_LOST_SAMPLES] while total_lost_samples tells
 265  * exactly how many samples the kernel in fact dropped, i.e. it is the sum of
 266  * all struct lost_samples_event.lost fields reported.
 267  *
 268  * The total_period is needed because by default auto-freq is used, so
 269  * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
 270  * the total number of low level events, it is necessary to to sum all struct
 271  * sample_event.period and stash the result in total_period.
 272  */
 273 struct events_stats {
 274         u64 total_period;
 275         u64 total_non_filtered_period;
 276         u64 total_lost;
 277         u64 total_lost_samples;
 278         u64 total_aux_lost;
 279         u64 total_aux_partial;
 280         u64 total_invalid_chains;
 281         u32 nr_events[PERF_RECORD_HEADER_MAX];
 282         u32 nr_non_filtered_samples;
 283         u32 nr_lost_warned;
 284         u32 nr_unknown_events;
 285         u32 nr_invalid_chains;
 286         u32 nr_unknown_id;
 287         u32 nr_unprocessable_samples;
 288         u32 nr_auxtrace_errors[PERF_AUXTRACE_ERROR_MAX];
 289         u32 nr_proc_map_timeout;
 290 };
 291
 292 enum {
 293         PERF_CPU_MAP__CPUS = 0,
 294         PERF_CPU_MAP__MASK = 1,
 295 };
 296
 297 struct cpu_map_entries {
 298         u16     nr;
 299         u16     cpu[];
 300 };
 301
 302 struct cpu_map_mask {
 303         u16     nr;
 304         u16     long_size;
 305         unsigned long mask[];
 306 };
 307
 308 struct cpu_map_data {
 309         u16     type;
 310         char    data[];
 311 };
 312
 313 struct cpu_map_event {
 314         struct perf_event_header        header;
 315         struct cpu_map_data             data;
 316 };
 317
 318 struct attr_event {
 319         struct perf_event_header header;
 320         struct perf_event_attr attr;
 321         u64 id[];
 322 };
 323
 324 enum {
 325         PERF_EVENT_UPDATE__UNIT  = 0,
 326         PERF_EVENT_UPDATE__SCALE = 1,
 327         PERF_EVENT_UPDATE__NAME  = 2,
 328         PERF_EVENT_UPDATE__CPUS  = 3,
 329 };
 330
 331 struct event_update_event_cpus {
 332         struct cpu_map_data cpus;
 333 };
 334
 335 struct event_update_event_scale {
 336         double scale;
 337 };
 338
 339 struct event_update_event {
 340         struct perf_event_header header;
 341         u64 type;
 342         u64 id;
 343
 344         char data[];
 345 };
 346
 347 #define MAX_EVENT_NAME 64
 348
 349 struct perf_trace_event_type {
 350         u64     event_id;
 351         char    name[MAX_EVENT_NAME];
 352 };
 353
 354 struct event_type_event {
 355         struct perf_event_header header;
 356         struct perf_trace_event_type event_type;
 357 };
 358
 359 struct tracing_data_event {
 360         struct perf_event_header header;
 361         u32 size;
 362 };
 363
 364 struct id_index_entry {
 365         u64 id;
 366         u64 idx;
 367         u64 cpu;
 368         u64 tid;
 369 };
 370
 371 struct id_index_event {
 372         struct perf_event_header header;
 373         u64 nr;
 374         struct id_index_entry entries[0];
 375 };
 376
 377 struct auxtrace_info_event {
 378         struct perf_event_header header;
 379         u32 type;
 380         u32 reserved__; /* For alignment */
 381         u64 priv[];
 382 };
 383
 384 struct auxtrace_event {
 385         struct perf_event_header header;
 386         u64 size;
 387         u64 offset;
 388         u64 reference;
 389         u32 idx;
 390         u32 tid;
 391         u32 cpu;
 392         u32 reserved__; /* For alignment */
 393 };
 394
 395 #define MAX_AUXTRACE_ERROR_MSG 64
 396
 397 struct auxtrace_error_event {
 398         struct perf_event_header header;
 399         u32 type;
 400         u32 code;
 401         u32 cpu;
 402         u32 pid;
 403         u32 tid;
 404         u32 reserved__; /* For alignment */
 405         u64 ip;
 406         char msg[MAX_AUXTRACE_ERROR_MSG];
 407 };
 408
 409 struct aux_event {
 410         struct perf_event_header header;
 411         u64     aux_offset;
 412         u64     aux_size;
 413         u64     flags;
 414 };
 415
 416 struct itrace_start_event {
 417         struct perf_event_header header;
 418         u32 pid, tid;
 419 };
 420
 421 struct context_switch_event {
 422         struct perf_event_header header;
 423         u32 next_prev_pid;
 424         u32 next_prev_tid;
 425 };
 426
 427 struct thread_map_event_entry {
 428         u64     pid;
 429         char    comm[16];
 430 };
 431
 432 struct thread_map_event {
 433         struct perf_event_header        header;
 434         u64                             nr;
 435         struct thread_map_event_entry   entries[];
 436 };
 437
 438 enum {
 439         PERF_STAT_CONFIG_TERM__AGGR_MODE        = 0,
 440         PERF_STAT_CONFIG_TERM__INTERVAL         = 1,
 441         PERF_STAT_CONFIG_TERM__SCALE            = 2,
 442         PERF_STAT_CONFIG_TERM__MAX              = 3,
 443 };
 444
 445 struct stat_config_event_entry {
 446         u64     tag;
 447         u64     val;
 448 };
 449
 450 struct stat_config_event {
 451         struct perf_event_header        header;
 452         u64                             nr;
 453         struct stat_config_event_entry  data[];
 454 };
 455
 456 struct stat_event {
 457         struct perf_event_header        header;
 458
 459         u64     id;
 460         u32     cpu;
 461         u32     thread;
 462
 463         union {
 464                 struct {
 465                         u64 val;
 466                         u64 ena;
 467                         u64 run;
 468                 };
 469                 u64 values[3];
 470         };
 471 };
 472
 473 enum {
 474         PERF_STAT_ROUND_TYPE__INTERVAL  = 0,
 475         PERF_STAT_ROUND_TYPE__FINAL     = 1,
 476 };
 477
 478 struct stat_round_event {
 479         struct perf_event_header        header;
 480         u64                             type;
 481         u64                             time;
 482 };
 483
 484 struct time_conv_event {
 485         struct perf_event_header header;
 486         u64 time_shift;
 487         u64 time_mult;
 488         u64 time_zero;
 489 };
 490
 491 union perf_event {
 492         struct perf_event_header        header;
 493         struct mmap_event               mmap;
 494         struct mmap2_event              mmap2;
 495         struct comm_event               comm;
 496         struct namespaces_event         namespaces;
 497         struct fork_event               fork;
 498         struct lost_event               lost;
 499         struct lost_samples_event       lost_samples;
 500         struct read_event               read;
 501         struct throttle_event           throttle;
 502         struct sample_event             sample;
 503         struct attr_event               attr;
 504         struct event_update_event       event_update;
 505         struct event_type_event         event_type;
 506         struct tracing_data_event       tracing_data;
 507         struct build_id_event           build_id;
 508         struct id_index_event           id_index;
 509         struct auxtrace_info_event      auxtrace_info;
 510         struct auxtrace_event           auxtrace;
 511         struct auxtrace_error_event     auxtrace_error;
 512         struct aux_event                aux;
 513         struct itrace_start_event       itrace_start;
 514         struct context_switch_event     context_switch;
 515         struct thread_map_event         thread_map;
 516         struct cpu_map_event            cpu_map;
 517         struct stat_config_event        stat_config;
 518         struct stat_event               stat;
 519         struct stat_round_event         stat_round;
 520         struct time_conv_event          time_conv;
 521 };
 522
 523 void perf_event__print_totals(void);
 524
 525 struct perf_tool;
 526 struct thread_map;
 527 struct cpu_map;
 528 struct perf_stat_config;
 529 struct perf_counts_values;
 530
 531 typedef int (*perf_event__handler_t)(struct perf_tool *tool,
 532                                      union perf_event *event,
 533                                      struct perf_sample *sample,
 534                                      struct machine *machine);
 535
 536 int perf_event__synthesize_thread_map(struct perf_tool *tool,
 537                                       struct thread_map *threads,
 538                                       perf_event__handler_t process,
 539                                       struct machine *machine, bool mmap_data,
 540                                       unsigned int proc_map_timeout);
 541 int perf_event__synthesize_thread_map2(struct perf_tool *tool,
 542                                       struct thread_map *threads,
 543                                       perf_event__handler_t process,
 544                                       struct machine *machine);
 545 int perf_event__synthesize_cpu_map(struct perf_tool *tool,
 546                                    struct cpu_map *cpus,
 547                                    perf_event__handler_t process,
 548                                    struct machine *machine);
 549 int perf_event__synthesize_threads(struct perf_tool *tool,
 550                                    perf_event__handler_t process,
 551                                    struct machine *machine, bool mmap_data,
 552                                    unsigned int proc_map_timeout);
 553 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
 554                                        perf_event__handler_t process,
 555                                        struct machine *machine);
 556 int perf_event__synthesize_stat_config(struct perf_tool *tool,
 557                                        struct perf_stat_config *config,
 558                                        perf_event__handler_t process,
 559                                        struct machine *machine);
 560 void perf_event__read_stat_config(struct perf_stat_config *config,
 561                                   struct stat_config_event *event);
 562 int perf_event__synthesize_stat(struct perf_tool *tool,
 563                                 u32 cpu, u32 thread, u64 id,
 564                                 struct perf_counts_values *count,
 565                                 perf_event__handler_t process,
 566                                 struct machine *machine);
 567 int perf_event__synthesize_stat_round(struct perf_tool *tool,
 568                                       u64 time, u64 type,
 569                                       perf_event__handler_t process,
 570                                       struct machine *machine);
 571 int perf_event__synthesize_modules(struct perf_tool *tool,
 572                                    perf_event__handler_t process,
 573                                    struct machine *machine);
 574
 575 int perf_event__process_comm(struct perf_tool *tool,
 576                              union perf_event *event,
 577                              struct perf_sample *sample,
 578                              struct machine *machine);
 579 int perf_event__process_lost(struct perf_tool *tool,
 580                              union perf_event *event,
 581                              struct perf_sample *sample,
 582                              struct machine *machine);
 583 int perf_event__process_lost_samples(struct perf_tool *tool,
 584                                      union perf_event *event,
 585                                      struct perf_sample *sample,
 586                                      struct machine *machine);
 587 int perf_event__process_aux(struct perf_tool *tool,
 588                             union perf_event *event,
 589                             struct perf_sample *sample,
 590                             struct machine *machine);
 591 int perf_event__process_itrace_start(struct perf_tool *tool,
 592                                      union perf_event *event,
 593                                      struct perf_sample *sample,
 594                                      struct machine *machine);
 595 int perf_event__process_switch(struct perf_tool *tool,
 596                                union perf_event *event,
 597                                struct perf_sample *sample,
 598                                struct machine *machine);
 599 int perf_event__process_namespaces(struct perf_tool *tool,
 600                                    union perf_event *event,
 601                                    struct perf_sample *sample,
 602                                    struct machine *machine);
 603 int perf_event__process_mmap(struct perf_tool *tool,
 604                              union perf_event *event,
 605                              struct perf_sample *sample,
 606                              struct machine *machine);
 607 int perf_event__process_mmap2(struct perf_tool *tool,
 608                              union perf_event *event,
 609                              struct perf_sample *sample,
 610                              struct machine *machine);
 611 int perf_event__process_fork(struct perf_tool *tool,
 612                              union perf_event *event,
 613                              struct perf_sample *sample,
 614                              struct machine *machine);
 615 int perf_event__process_exit(struct perf_tool *tool,
 616                              union perf_event *event,
 617                              struct perf_sample *sample,
 618                              struct machine *machine);
 619 int perf_event__process(struct perf_tool *tool,
 620                         union perf_event *event,
 621                         struct perf_sample *sample,
 622                         struct machine *machine);
 623
 624 struct addr_location;
 625
 626 int machine__resolve(struct machine *machine, struct addr_location *al,
 627                      struct perf_sample *sample);
 628
 629 void addr_location__put(struct addr_location *al);
 630
 631 struct thread;
 632
 633 bool is_bts_event(struct perf_event_attr *attr);
 634 bool sample_addr_correlates_sym(struct perf_event_attr *attr);
 635 void thread__resolve(struct thread *thread, struct addr_location *al,
 636                      struct perf_sample *sample);
 637
 638 const char *perf_event__name(unsigned int id);
 639
 640 size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type,
 641                                      u64 read_format);
 642 int perf_event__synthesize_sample(union perf_event *event, u64 type,
 643                                   u64 read_format,
 644                                   const struct perf_sample *sample,
 645                                   bool swapped);
 646
 647 pid_t perf_event__synthesize_comm(struct perf_tool *tool,
 648                                   union perf_event *event, pid_t pid,
 649                                   perf_event__handler_t process,
 650                                   struct machine *machine);
 651
 652 int perf_event__synthesize_namespaces(struct perf_tool *tool,
 653                                       union perf_event *event,
 654                                       pid_t pid, pid_t tgid,
 655                                       perf_event__handler_t process,
 656                                       struct machine *machine);
 657
 658 int perf_event__synthesize_mmap_events(struct perf_tool *tool,
 659                                        union perf_event *event,
 660                                        pid_t pid, pid_t tgid,
 661                                        perf_event__handler_t process,
 662                                        struct machine *machine,
 663                                        bool mmap_data,
 664                                        unsigned int proc_map_timeout);
 665
 666 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
 667 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
 668 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
 669 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
 670 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
 671 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
 672 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
 673 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp);
 674 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp);
 675 size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp);
 676 size_t perf_event__fprintf(union perf_event *event, FILE *fp);
 677
 678 u64 kallsyms__get_function_start(const char *kallsyms_filename,
 679                                  const char *symbol_name);
 680
 681 void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max);
 682 void  cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map,
 683                                u16 type, int max);
 684 #endif /* __PERF_RECORD_H */