tools/perf/util/event.h

   1 #ifndef __PERF_RECORD_H
   2 #define __PERF_RECORD_H
   3
   4 #include "../perf.h"
   5 #include "util.h"
   6 #include <linux/list.h>
   7 #include <linux/rbtree.h>
   8
   9 /*
  10  * PERF_SAMPLE_IP | PERF_SAMPLE_TID | *
  11  */
  12 struct ip_event {
  13         struct perf_event_header header;
  14         u64 ip;
  15         u32 pid, tid;
  16         unsigned char __more_data[];
  17 };
  18
  19 struct mmap_event {
  20         struct perf_event_header header;
  21         u32 pid, tid;
  22         u64 start;
  23         u64 len;
  24         u64 pgoff;
  25         char filename[PATH_MAX];
  26 };
  27
  28 struct comm_event {
  29         struct perf_event_header header;
  30         u32 pid, tid;
  31         char comm[16];
  32 };
  33
  34 struct fork_event {
  35         struct perf_event_header header;
  36         u32 pid, ppid;
  37         u32 tid, ptid;
  38         u64 time;
  39 };
  40
  41 struct lost_event {
  42         struct perf_event_header header;
  43         u64 id;
  44         u64 lost;
  45 };
  46
  47 /*
  48  * PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID
  49  */
  50 struct read_event {
  51         struct perf_event_header header;
  52         u32 pid, tid;
  53         u64 value;
  54         u64 time_enabled;
  55         u64 time_running;
  56         u64 id;
  57 };
  58
  59 struct sample_event{
  60         struct perf_event_header        header;
  61         u64 array[];
  62 };
  63
  64 #define BUILD_ID_SIZE 20
  65
  66 struct build_id_event {
  67         struct perf_event_header header;
  68         u8                       build_id[ALIGN(BUILD_ID_SIZE, sizeof(u64))];
  69         char                     filename[];
  70 };
  71
  72 struct build_id_list {
  73         struct build_id_event   event;
  74         struct list_head        list;
  75         const char              *dso_name;
  76         int                     len;
  77 };
  78
  79 typedef union event_union {
  80         struct perf_event_header        header;
  81         struct ip_event                 ip;
  82         struct mmap_event               mmap;
  83         struct comm_event               comm;
  84         struct fork_event               fork;
  85         struct lost_event               lost;
  86         struct read_event               read;
  87         struct sample_event             sample;
  88 } event_t;
  89
  90 struct map {
  91         union {
  92                 struct rb_node  rb_node;
  93                 struct list_head node;
  94         };
  95         u64                     start;
  96         u64                     end;
  97         u64                     pgoff;
  98         u64                     (*map_ip)(struct map *, u64);
  99         u64                     (*unmap_ip)(struct map *, u64);
 100         struct dso              *dso;
 101 };
 102
 103 static inline u64 map__map_ip(struct map *map, u64 ip)
 104 {
 105         return ip - map->start + map->pgoff;
 106 }
 107
 108 static inline u64 map__unmap_ip(struct map *map, u64 ip)
 109 {
 110         return ip + map->start - map->pgoff;
 111 }
 112
 113 static inline u64 identity__map_ip(struct map *map __used, u64 ip)
 114 {
 115         return ip;
 116 }
 117
 118 struct symbol;
 119
 120 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
 121
 122 void map__init(struct map *self, u64 start, u64 end, u64 pgoff,
 123                struct dso *dso);
 124 struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen);
 125 struct map *map__clone(struct map *self);
 126 int map__overlap(struct map *l, struct map *r);
 127 size_t map__fprintf(struct map *self, FILE *fp);
 128 struct symbol *map__find_symbol(struct map *self, u64 ip, symbol_filter_t filter);
 129
 130 int event__synthesize_thread(pid_t pid, int (*process)(event_t *event));
 131 void event__synthesize_threads(int (*process)(event_t *event));
 132
 133 #endif /* __PERF_RECORD_H */