tools/perf/util/session.h

   1 #ifndef __PERF_SESSION_H
   2 #define __PERF_SESSION_H
   3
   4 #include "hist.h"
   5 #include "event.h"
   6 #include "header.h"
   7 #include "symbol.h"
   8 #include "thread.h"
   9 #include <linux/rbtree.h>
  10 #include "../../../include/linux/perf_event.h"
  11
  12 struct sample_queue;
  13 struct ip_callchain;
  14 struct thread;
  15
  16 struct ordered_samples {
  17         u64                     last_flush;
  18         u64                     next_flush;
  19         u64                     max_timestamp;
  20         struct list_head        samples;
  21         struct list_head        sample_cache;
  22         struct list_head        to_free;
  23         struct sample_queue     *sample_buffer;
  24         struct sample_queue     *last_sample;
  25         int                     sample_buffer_idx;
  26 };
  27
  28 struct perf_session {
  29         struct perf_header      header;
  30         unsigned long           size;
  31         unsigned long           mmap_window;
  32         struct rb_root          threads;
  33         struct list_head        dead_threads;
  34         struct thread           *last_match;
  35         struct machine          host_machine;
  36         struct rb_root          machines;
  37         struct perf_evlist      *evlist;
  38         /*
  39          * FIXME: Need to split this up further, we need global
  40          *        stats + per event stats. 'perf diff' also needs
  41          *        to properly support multiple events in a single
  42          *        perf.data file.
  43          */
  44         struct hists            hists;
  45         u64                     sample_type;
  46         int                     fd;
  47         bool                    fd_pipe;
  48         bool                    repipe;
  49         bool                    sample_id_all;
  50         u16                     id_hdr_size;
  51         int                     cwdlen;
  52         char                    *cwd;
  53         struct ordered_samples  ordered_samples;
  54         struct callchain_cursor callchain_cursor;
  55         char                    filename[0];
  56 };
  57
  58 struct perf_event_ops;
  59
  60 typedef int (*event_op)(union perf_event *self, struct perf_sample *sample,
  61                         struct perf_session *session);
  62 typedef int (*event_synth_op)(union perf_event *self,
  63                               struct perf_session *session);
  64 typedef int (*event_op2)(union perf_event *self, struct perf_session *session,
  65                          struct perf_event_ops *ops);
  66
  67 struct perf_event_ops {
  68         event_op        sample,
  69                         mmap,
  70                         comm,
  71                         fork,
  72                         exit,
  73                         lost,
  74                         read,
  75                         throttle,
  76                         unthrottle;
  77         event_synth_op  attr,
  78                         event_type,
  79                         tracing_data,
  80                         build_id;
  81         event_op2       finished_round;
  82         bool            ordered_samples;
  83         bool            ordering_requires_timestamps;
  84 };
  85
  86 struct perf_session *perf_session__new(const char *filename, int mode,
  87                                        bool force, bool repipe,
  88                                        struct perf_event_ops *ops);
  89 void perf_session__delete(struct perf_session *self);
  90
  91 void perf_event_header__bswap(struct perf_event_header *self);
  92
  93 int __perf_session__process_events(struct perf_session *self,
  94                                    u64 data_offset, u64 data_size, u64 size,
  95                                    struct perf_event_ops *ops);
  96 int perf_session__process_events(struct perf_session *self,
  97                                  struct perf_event_ops *event_ops);
  98
  99 int perf_session__resolve_callchain(struct perf_session *self,
 100                                     struct thread *thread,
 101                                     struct ip_callchain *chain,
 102                                     struct symbol **parent);
 103
 104 bool perf_session__has_traces(struct perf_session *self, const char *msg);
 105
 106 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
 107                                              const char *symbol_name,
 108                                              u64 addr);
 109
 110 void mem_bswap_64(void *src, int byte_size);
 111
 112 int perf_session__create_kernel_maps(struct perf_session *self);
 113
 114 void perf_session__update_sample_type(struct perf_session *self);
 115 void perf_session__remove_thread(struct perf_session *self, struct thread *th);
 116
 117 static inline
 118 struct machine *perf_session__find_host_machine(struct perf_session *self)
 119 {
 120         return &self->host_machine;
 121 }
 122
 123 static inline
 124 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
 125 {
 126         if (pid == HOST_KERNEL_ID)
 127                 return &self->host_machine;
 128         return machines__find(&self->machines, pid);
 129 }
 130
 131 static inline
 132 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 133 {
 134         if (pid == HOST_KERNEL_ID)
 135                 return &self->host_machine;
 136         return machines__findnew(&self->machines, pid);
 137 }
 138
 139 static inline
 140 void perf_session__process_machines(struct perf_session *self,
 141                                     machine__process_t process)
 142 {
 143         process(&self->host_machine, self);
 144         return machines__process(&self->machines, process, self);
 145 }
 146
 147 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 148
 149 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
 150                                           FILE *fp, bool with_hits);
 151
 152 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 153
 154 static inline int perf_session__parse_sample(struct perf_session *session,
 155                                              const union perf_event *event,
 156                                              struct perf_sample *sample)
 157 {
 158         return perf_event__parse_sample(event, session->sample_type,
 159                                         session->sample_id_all, sample);
 160 }
 161
 162 #endif /* __PERF_SESSION_H */