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 sample_queue;
  12 struct ip_callchain;
  13 struct thread;
  14
  15 struct ordered_samples {
  16         u64                     last_flush;
  17         u64                     flush_limit;
  18         struct list_head        samples_head;
  19         struct sample_queue     *last_inserted;
  20 };
  21
  22 struct perf_session {
  23         struct perf_header      header;
  24         unsigned long           size;
  25         unsigned long           mmap_window;
  26         struct rb_root          threads;
  27         struct thread           *last_match;
  28         struct machine          host_machine;
  29         struct rb_root          machines;
  30         struct events_stats     events_stats;
  31         struct rb_root          stats_by_id;
  32         unsigned long           event_total[PERF_RECORD_MAX];
  33         unsigned long           unknown_events;
  34         struct rb_root          hists;
  35         u64                     sample_type;
  36         int                     fd;
  37         bool                    fd_pipe;
  38         bool                    repipe;
  39         int                     cwdlen;
  40         char                    *cwd;
  41         struct ordered_samples  ordered_samples;
  42         char filename[0];
  43 };
  44
  45 typedef int (*event_op)(event_t *self, struct perf_session *session);
  46
  47 struct perf_event_ops {
  48         event_op sample,
  49                  mmap,
  50                  comm,
  51                  fork,
  52                  exit,
  53                  lost,
  54                  read,
  55                  throttle,
  56                  unthrottle,
  57                  attr,
  58                  event_type,
  59                  tracing_data,
  60                  build_id;
  61         bool    ordered_samples;
  62 };
  63
  64 struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe);
  65 void perf_session__delete(struct perf_session *self);
  66
  67 void perf_event_header__bswap(struct perf_event_header *self);
  68
  69 int __perf_session__process_events(struct perf_session *self,
  70                                    u64 data_offset, u64 data_size, u64 size,
  71                                    struct perf_event_ops *ops);
  72 int perf_session__process_events(struct perf_session *self,
  73                                  struct perf_event_ops *event_ops);
  74
  75 struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
  76                                                    struct thread *thread,
  77                                                    struct ip_callchain *chain,
  78                                                    struct symbol **parent);
  79
  80 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  81
  82 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
  83                                              const char *symbol_name,
  84                                              u64 addr);
  85
  86 void mem_bswap_64(void *src, int byte_size);
  87
  88 int perf_session__create_kernel_maps(struct perf_session *self);
  89
  90 int do_read(int fd, void *buf, size_t size);
  91 void perf_session__update_sample_type(struct perf_session *self);
  92
  93 #ifdef NO_NEWT_SUPPORT
  94 static inline int perf_session__browse_hists(struct rb_root *hists __used,
  95                                               u64 nr_hists __used,
  96                                               u64 session_total __used,
  97                                              const char *helpline __used,
  98                                              const char *input_name __used)
  99 {
 100         return 0;
 101 }
 102 #else
 103 int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists,
 104                                u64 session_total, const char *helpline,
 105                                const char *input_name);
 106 #endif
 107
 108 static inline
 109 struct machine *perf_session__find_host_machine(struct perf_session *self)
 110 {
 111         return &self->host_machine;
 112 }
 113
 114 static inline
 115 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
 116 {
 117         if (pid == HOST_KERNEL_ID)
 118                 return &self->host_machine;
 119         return machines__find(&self->machines, pid);
 120 }
 121
 122 static inline
 123 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 124 {
 125         if (pid == HOST_KERNEL_ID)
 126                 return &self->host_machine;
 127         return machines__findnew(&self->machines, pid);
 128 }
 129
 130 static inline
 131 void perf_session__process_machines(struct perf_session *self,
 132                                     machine__process_t process)
 133 {
 134         process(&self->host_machine, self);
 135         return machines__process(&self->machines, process, self);
 136 }
 137
 138 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 139
 140 static inline
 141 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp,
 142                                           bool with_hits)
 143 {
 144         return machines__fprintf_dsos_buildid(&self->machines, fp, with_hits);
 145 }
 146 #endif /* __PERF_SESSION_H */