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         bool                    fd_pipe;
  31         int                     cwdlen;
  32         char                    *cwd;
  33         char filename[0];
  34 };
  35
  36 typedef int (*event_op)(event_t *self, struct perf_session *session);
  37
  38 struct perf_event_ops {
  39         event_op sample,
  40                  mmap,
  41                  comm,
  42                  fork,
  43                  exit,
  44                  lost,
  45                  read,
  46                  throttle,
  47                  unthrottle,
  48                  attr,
  49                  event_type;
  50 };
  51
  52 struct perf_session *perf_session__new(const char *filename, int mode, bool force);
  53 void perf_session__delete(struct perf_session *self);
  54
  55 void perf_event_header__bswap(struct perf_event_header *self);
  56
  57 int __perf_session__process_events(struct perf_session *self,
  58                                    u64 data_offset, u64 data_size, u64 size,
  59                                    struct perf_event_ops *ops);
  60 int perf_session__process_events(struct perf_session *self,
  61                                  struct perf_event_ops *event_ops);
  62
  63 struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
  64                                                    struct thread *thread,
  65                                                    struct ip_callchain *chain,
  66                                                    struct symbol **parent);
  67
  68 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  69
  70 int perf_header__read_build_ids(struct perf_header *self, int input,
  71                                 u64 offset, u64 file_size);
  72
  73 int perf_session__set_kallsyms_ref_reloc_sym(struct perf_session *self,
  74                                              const char *symbol_name,
  75                                              u64 addr);
  76
  77 void mem_bswap_64(void *src, int byte_size);
  78
  79 static inline int __perf_session__create_kernel_maps(struct perf_session *self,
  80                                                 struct dso *kernel)
  81 {
  82         return __map_groups__create_kernel_maps(&self->kmaps,
  83                                                 self->vmlinux_maps, kernel);
  84 }
  85
  86 static inline int perf_session__create_kernel_maps(struct perf_session *self)
  87 {
  88         return map_groups__create_kernel_maps(&self->kmaps, self->vmlinux_maps);
  89 }
  90
  91 static inline struct map *
  92         perf_session__new_module_map(struct perf_session *self,
  93                                      u64 start, const char *filename)
  94 {
  95         return map_groups__new_module(&self->kmaps, start, filename);
  96 }
  97
  98 int do_read(int fd, void *buf, size_t size);
  99 void perf_session__update_sample_type(struct perf_session *self);
 100
 101 #ifdef NO_NEWT_SUPPORT
 102 static inline int perf_session__browse_hists(struct rb_root *hists __used,
 103                                               u64 nr_hists __used,
 104                                               u64 session_total __used,
 105                                              const char *helpline __used,
 106                                              const char *input_name __used)
 107 {
 108         return 0;
 109 }
 110 #else
 111 int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists,
 112                                u64 session_total, const char *helpline,
 113                                const char *input_name);
 114 #endif
 115 #endif /* __PERF_SESSION_H */