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 };
  50
  51 struct perf_session *perf_session__new(const char *filename, int mode, bool force);
  52 void perf_session__delete(struct perf_session *self);
  53
  54 void perf_event_header__bswap(struct perf_event_header *self);
  55
  56 int __perf_session__process_events(struct perf_session *self,
  57                                    u64 data_offset, u64 data_size, u64 size,
  58                                    struct perf_event_ops *ops);
  59 int perf_session__process_events(struct perf_session *self,
  60                                  struct perf_event_ops *event_ops);
  61
  62 struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
  63                                                    struct thread *thread,
  64                                                    struct ip_callchain *chain,
  65                                                    struct symbol **parent);
  66
  67 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  68
  69 int perf_header__read_build_ids(struct perf_header *self, int input,
  70                                 u64 offset, u64 file_size);
  71
  72 int perf_session__set_kallsyms_ref_reloc_sym(struct perf_session *self,
  73                                              const char *symbol_name,
  74                                              u64 addr);
  75
  76 void mem_bswap_64(void *src, int byte_size);
  77
  78 static inline int __perf_session__create_kernel_maps(struct perf_session *self,
  79                                                 struct dso *kernel)
  80 {
  81         return __map_groups__create_kernel_maps(&self->kmaps,
  82                                                 self->vmlinux_maps, kernel);
  83 }
  84
  85 static inline int perf_session__create_kernel_maps(struct perf_session *self)
  86 {
  87         return map_groups__create_kernel_maps(&self->kmaps, self->vmlinux_maps);
  88 }
  89
  90 static inline struct map *
  91         perf_session__new_module_map(struct perf_session *self,
  92                                      u64 start, const char *filename)
  93 {
  94         return map_groups__new_module(&self->kmaps, start, filename);
  95 }
  96
  97 int do_read(int fd, void *buf, size_t size);
  98 void perf_session__update_sample_type(struct perf_session *self);
  99
 100 #ifdef NO_NEWT_SUPPORT
 101 static inline int perf_session__browse_hists(struct rb_root *hists __used,
 102                                               u64 nr_hists __used,
 103                                               u64 session_total __used,
 104                                              const char *helpline __used,
 105                                              const char *input_name __used)
 106 {
 107         return 0;
 108 }
 109 #else
 110 int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists,
 111                                u64 session_total, const char *helpline,
 112                                const char *input_name);
 113 #endif
 114 #endif /* __PERF_SESSION_H */