tools/perf/util/session.h

   1 #ifndef __PERF_SESSION_H
   2 #define __PERF_SESSION_H
   3
   4 #include "event.h"
   5 #include "header.h"
   6 #include "symbol.h"
   7 #include "thread.h"
   8 #include <linux/rbtree.h>
   9 #include "../../../include/linux/perf_event.h"
  10
  11 struct ip_callchain;
  12 struct thread;
  13
  14 struct perf_session {
  15         struct perf_header      header;
  16         unsigned long           size;
  17         unsigned long           mmap_window;
  18         struct map_groups       kmaps;
  19         struct rb_root          threads;
  20         struct thread           *last_match;
  21         struct map              *vmlinux_maps[MAP__NR_TYPES];
  22         struct events_stats     events_stats;
  23         struct rb_root          stats_by_id;
  24         unsigned long           event_total[PERF_RECORD_MAX];
  25         unsigned long           unknown_events;
  26         struct rb_root          hists;
  27         u64                     sample_type;
  28         struct ref_reloc_sym    ref_reloc_sym;
  29         int                     fd;
  30         int                     cwdlen;
  31         char                    *cwd;
  32         char filename[0];
  33 };
  34
  35 typedef int (*event_op)(event_t *self, struct perf_session *session);
  36
  37 struct perf_event_ops {
  38         event_op sample,
  39                  mmap,
  40                  comm,
  41                  fork,
  42                  exit,
  43                  lost,
  44                  read,
  45                  throttle,
  46                  unthrottle;
  47 };
  48
  49 struct perf_session *perf_session__new(const char *filename, int mode, bool force);
  50 void perf_session__delete(struct perf_session *self);
  51
  52 void perf_event_header__bswap(struct perf_event_header *self);
  53
  54 int __perf_session__process_events(struct perf_session *self,
  55                                    u64 data_offset, u64 data_size, u64 size,
  56                                    struct perf_event_ops *ops);
  57 int perf_session__process_events(struct perf_session *self,
  58                                  struct perf_event_ops *event_ops);
  59
  60 struct symbol **perf_session__resolve_callchain(struct perf_session *self,
  61                                                 struct thread *thread,
  62                                                 struct ip_callchain *chain,
  63                                                 struct symbol **parent);
  64
  65 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  66
  67 int perf_header__read_build_ids(struct perf_header *self, int input,
  68                                 u64 offset, u64 file_size);
  69
  70 int perf_session__set_kallsyms_ref_reloc_sym(struct perf_session *self,
  71                                              const char *symbol_name,
  72                                              u64 addr);
  73
  74 void mem_bswap_64(void *src, int byte_size);
  75
  76 static inline int __perf_session__create_kernel_maps(struct perf_session *self,
  77                                                 struct dso *kernel)
  78 {
  79         return __map_groups__create_kernel_maps(&self->kmaps,
  80                                                 self->vmlinux_maps, kernel);
  81 }
  82
  83 static inline struct map *
  84         perf_session__new_module_map(struct perf_session *self,
  85                                      u64 start, const char *filename)
  86 {
  87         return map_groups__new_module(&self->kmaps, start, filename);
  88 }
  89 #endif /* __PERF_SESSION_H */