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 #include "event.h"
   9
  10 #include <linux/bitmap.h>
  11
  12 enum {
  13         HEADER_TRACE_INFO = 1,
  14         HEADER_BUILD_ID,
  15         HEADER_LAST_FEATURE,
  16 };
  17
  18 #define HEADER_FEAT_BITS                        256
  19
  20 struct perf_file_section {
  21         u64 offset;
  22         u64 size;
  23 };
  24
  25 struct perf_file_header {
  26         u64                             magic;
  27         u64                             size;
  28         u64                             attr_size;
  29         struct perf_file_section        attrs;
  30         struct perf_file_section        data;
  31         struct perf_file_section        event_types;
  32         DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
  33 };
  34
  35 struct perf_pipe_file_header {
  36         u64                             magic;
  37         u64                             size;
  38 };
  39
  40 struct perf_header;
  41
  42 int perf_file_header__read(struct perf_file_header *header,
  43                            struct perf_header *ph, int fd);
  44
  45 struct perf_header {
  46         int                     frozen;
  47         bool                    needs_swap;
  48         s64                     attr_offset;
  49         u64                     data_offset;
  50         u64                     data_size;
  51         u64                     event_offset;
  52         u64                     event_size;
  53         DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
  54 };
  55
  56 struct perf_evlist;
  57
  58 int perf_session__read_header(struct perf_session *session, int fd);
  59 int perf_session__write_header(struct perf_session *session,
  60                                struct perf_evlist *evlist,
  61                                int fd, bool at_exit);
  62 int perf_header__write_pipe(int fd);
  63
  64 int perf_header__push_event(u64 id, const char *name);
  65 char *perf_header__find_event(u64 id);
  66
  67 void perf_header__set_feat(struct perf_header *header, int feat);
  68 void perf_header__clear_feat(struct perf_header *header, int feat);
  69 bool perf_header__has_feat(const struct perf_header *header, int feat);
  70
  71 int perf_header__process_sections(struct perf_header *header, int fd,
  72                                   int (*process)(struct perf_file_section *section,
  73                                                  struct perf_header *ph,
  74                                                  int feat, int fd));
  75
  76 int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
  77                           const char *name, bool is_kallsyms);
  78 int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
  79
  80 int perf_event__synthesize_attr(struct perf_event_attr *attr, u16 ids, u64 *id,
  81                                 perf_event__handler_t process,
  82                                 struct perf_session *session);
  83 int perf_session__synthesize_attrs(struct perf_session *session,
  84                                    perf_event__handler_t process);
  85 int perf_event__process_attr(union perf_event *event, struct perf_session *session);
  86
  87 int perf_event__synthesize_event_type(u64 event_id, char *name,
  88                                       perf_event__handler_t process,
  89                                       struct perf_session *session);
  90 int perf_event__synthesize_event_types(perf_event__handler_t process,
  91                                        struct perf_session *session);
  92 int perf_event__process_event_type(union perf_event *event,
  93                                    struct perf_session *session);
  94
  95 int perf_event__synthesize_tracing_data(int fd, struct perf_evlist *evlist,
  96                                         perf_event__handler_t process,
  97                                         struct perf_session *session);
  98 int perf_event__process_tracing_data(union perf_event *event,
  99                                      struct perf_session *session);
 100
 101 int perf_event__synthesize_build_id(struct dso *pos, u16 misc,
 102                                     perf_event__handler_t process,
 103                                     struct machine *machine,
 104                                     struct perf_session *session);
 105 int perf_event__process_build_id(union perf_event *event,
 106                                  struct perf_session *session);
 107 #endif /* __PERF_HEADER_H */