tools/perf/util/header.h

   1 #ifndef __PERF_HEADER_H
   2 #define __PERF_HEADER_H
   3
   4 #include "../../../include/linux/perf_event.h"
   5 #include <sys/types.h>
   6 #include "types.h"
   7
   8 struct perf_header_attr {
   9         struct perf_event_attr attr;
  10         int ids, size;
  11         u64 *id;
  12         off_t id_offset;
  13 };
  14
  15 #define HEADER_TRACE_INFO                       1
  16
  17 #define HEADER_FEAT_BITS                        256
  18
  19 typedef typeof(u64[HEADER_FEAT_BITS / 8])       feat_mask_t;
  20
  21 struct perf_header {
  22         int                     frozen;
  23         int                     attrs, size;
  24         struct perf_header_attr **attr;
  25         s64                     attr_offset;
  26         u64                     data_offset;
  27         u64                     data_size;
  28         u64                     event_offset;
  29         u64                     event_size;
  30         feat_mask_t             adds_features;
  31 };
  32
  33 static inline unsigned long *perf_header__adds_mask(struct perf_header *self)
  34 {
  35         return (unsigned long *)(void *)&self->adds_features;
  36 }
  37
  38 struct perf_header *perf_header__read(int fd);
  39 void perf_header__write(struct perf_header *self, int fd);
  40
  41 void perf_header__add_attr(struct perf_header *self,
  42                            struct perf_header_attr *attr);
  43
  44 void perf_header__push_event(u64 id, const char *name);
  45 char *perf_header__find_event(u64 id);
  46
  47
  48 struct perf_header_attr *
  49 perf_header_attr__new(struct perf_event_attr *attr);
  50 void perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
  51
  52 u64 perf_header__sample_type(struct perf_header *header);
  53 struct perf_event_attr *
  54 perf_header__find_attr(u64 id, struct perf_header *header);
  55 void perf_header__feat_trace_info(struct perf_header *header);
  56
  57 struct perf_header *perf_header__new(void);
  58
  59 #endif /* __PERF_HEADER_H */