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 <stdbool.h>
   7 #include "types.h"
   8
   9 #include <linux/bitmap.h>
  10
  11 struct perf_header_attr {
  12         struct perf_event_attr attr;
  13         int ids, size;
  14         u64 *id;
  15         off_t id_offset;
  16 };
  17
  18 #define HEADER_TRACE_INFO                       1
  19 #define HEADER_BUILD_ID                         2
  20
  21 #define HEADER_FEAT_BITS                        256
  22
  23 struct perf_header {
  24         int                     frozen;
  25         int                     attrs, size;
  26         struct perf_header_attr **attr;
  27         s64                     attr_offset;
  28         u64                     data_offset;
  29         u64                     data_size;
  30         u64                     event_offset;
  31         u64                     event_size;
  32         DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
  33 };
  34
  35 struct perf_header *perf_header__read(int fd);
  36 void perf_header__write(struct perf_header *self, int fd, bool at_exit);
  37
  38 void perf_header__add_attr(struct perf_header *self,
  39                            struct perf_header_attr *attr);
  40
  41 void perf_header__push_event(u64 id, const char *name);
  42 char *perf_header__find_event(u64 id);
  43
  44
  45 struct perf_header_attr *
  46 perf_header_attr__new(struct perf_event_attr *attr);
  47 void perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
  48
  49 u64 perf_header__sample_type(struct perf_header *header);
  50 struct perf_event_attr *
  51 perf_header__find_attr(u64 id, struct perf_header *header);
  52 void perf_header__feat_trace_info(struct perf_header *header);
  53 void perf_header__set_feat(struct perf_header *self, int feat);
  54 bool perf_header__has_feat(const struct perf_header *self, int feat);
  55
  56 struct perf_header *perf_header__new(void);
  57
  58 #endif /* __PERF_HEADER_H */