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