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 struct sample_data {
  65         u64 ip;
  66         u32 pid, tid;
  67         u64 time;
  68         u64 addr;
  69         u64 id;
  70         u64 stream_id;
  71         u32 cpu;
  72         u64 period;
  73         struct ip_callchain *callchain;
  74         u32 raw_size;
  75         void *raw_data;
  76 };
  77
  78 #define BUILD_ID_SIZE 20
  79
  80 struct build_id_event {
  81         struct perf_event_header header;
  82         u8                       build_id[ALIGN(BUILD_ID_SIZE, sizeof(u64))];
  83         char                     filename[];
  84 };
  85
  86 typedef union event_union {
  87         struct perf_event_header        header;
  88         struct ip_event                 ip;
  89         struct mmap_event               mmap;
  90         struct comm_event               comm;
  91         struct fork_event               fork;
  92         struct lost_event               lost;
  93         struct read_event               read;
  94         struct sample_event             sample;
  95 } event_t;
  96
  97 struct events_stats {
  98         unsigned long total;
  99         unsigned long lost;
 100 };
 101
 102 void event__print_totals(void);
 103
 104 enum map_type {
 105         MAP__FUNCTION = 0,
 106         MAP__VARIABLE,
 107 };
 108
 109 #define MAP__NR_TYPES (MAP__VARIABLE + 1)
 110
 111 struct map {
 112         union {
 113                 struct rb_node  rb_node;
 114                 struct list_head node;
 115         };
 116         u64                     start;
 117         u64                     end;
 118         enum map_type           type;
 119         u64                     pgoff;
 120         u64                     (*map_ip)(struct map *, u64);
 121         u64                     (*unmap_ip)(struct map *, u64);
 122         struct dso              *dso;
 123 };
 124
 125 static inline u64 map__map_ip(struct map *map, u64 ip)
 126 {
 127         return ip - map->start + map->pgoff;
 128 }
 129
 130 static inline u64 map__unmap_ip(struct map *map, u64 ip)
 131 {
 132         return ip + map->start - map->pgoff;
 133 }
 134
 135 static inline u64 identity__map_ip(struct map *map __used, u64 ip)
 136 {
 137         return ip;
 138 }
 139
 140 struct symbol;
 141
 142 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
 143
 144 void map__init(struct map *self, enum map_type type,
 145                u64 start, u64 end, u64 pgoff, struct dso *dso);
 146 struct map *map__new(struct mmap_event *event, enum map_type,
 147                      char *cwd, int cwdlen);
 148 void map__delete(struct map *self);
 149 struct map *map__clone(struct map *self);
 150 int map__overlap(struct map *l, struct map *r);
 151 size_t map__fprintf(struct map *self, FILE *fp);
 152 struct symbol *map__find_symbol(struct map *self, u64 addr,
 153                                 symbol_filter_t filter);
 154 struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
 155                                         symbol_filter_t filter);
 156 void map__fixup_start(struct map *self);
 157 void map__fixup_end(struct map *self);
 158
 159 int event__synthesize_thread(pid_t pid, int (*process)(event_t *event));
 160 void event__synthesize_threads(int (*process)(event_t *event));
 161
 162 extern char *event__cwd;
 163 extern int  event__cwdlen;
 164 extern struct events_stats event__stats;
 165 extern unsigned long event__total[PERF_RECORD_MAX];
 166
 167 int event__process_comm(event_t *self);
 168 int event__process_lost(event_t *self);
 169 int event__process_mmap(event_t *self);
 170 int event__process_task(event_t *self);
 171
 172 struct addr_location;
 173 int event__preprocess_sample(const event_t *self, struct addr_location *al,
 174                              symbol_filter_t filter);
 175 int event__parse_sample(event_t *event, u64 type, struct sample_data *data);
 176
 177 #endif /* __PERF_RECORD_H */