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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 int kallsyms__get_function_start(const char *kallsyms_filename,
679                                  const char *symbol_name, u64 *addr);
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
685 void event_attr_init(struct perf_event_attr *attr);
686
687 int perf_event_paranoid(void);
688
689 extern int sysctl_perf_event_max_stack;
690 extern int sysctl_perf_event_max_contexts_per_stack;
691
692 #endif /* __PERF_RECORD_H */