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         unsigned int            nr_samples;
  27 };
  28
  29 struct perf_session {
  30         struct perf_header      header;
  31         unsigned long           size;
  32         unsigned long           mmap_window;
  33         struct machine          host_machine;
  34         struct rb_root          machines;
  35         struct perf_evlist      *evlist;
  36         /*
  37          * FIXME: Need to split this up further, we need global
  38          *        stats + per event stats. 'perf diff' also needs
  39          *        to properly support multiple events in a single
  40          *        perf.data file.
  41          */
  42         struct hists            hists;
  43         u64                     sample_type;
  44         int                     sample_size;
  45         int                     fd;
  46         bool                    fd_pipe;
  47         bool                    repipe;
  48         bool                    sample_id_all;
  49         u16                     id_hdr_size;
  50         int                     cwdlen;
  51         char                    *cwd;
  52         struct ordered_samples  ordered_samples;
  53         char                    filename[0];
  54 };
  55
  56 struct perf_evsel;
  57 struct perf_event_ops;
  58
  59 typedef int (*event_sample)(struct perf_event_ops *ops,
  60                             union perf_event *event, struct perf_sample *sample,
  61                             struct perf_evsel *evsel, struct perf_session *session);
  62 typedef int (*event_op)(struct perf_event_ops *ops, union perf_event *event,
  63                         struct perf_sample *sample,
  64                         struct perf_session *session);
  65 typedef int (*event_synth_op)(union perf_event *self,
  66                               struct perf_session *session);
  67 typedef int (*event_attr_op)(union perf_event *event,
  68                              struct perf_evlist **pevlist);
  69 typedef int (*event_op2)(struct perf_event_ops *ops, union perf_event *event,
  70                          struct perf_session *session);
  71
  72 struct perf_event_ops {
  73         event_sample    sample;
  74         event_op        mmap,
  75                         comm,
  76                         fork,
  77                         exit,
  78                         lost,
  79                         read,
  80                         throttle,
  81                         unthrottle;
  82         event_attr_op   attr;
  83         event_synth_op  tracing_data;
  84         event_op2       event_type,
  85                         build_id,
  86                         finished_round;
  87         bool            ordered_samples;
  88         bool            ordering_requires_timestamps;
  89 };
  90
  91 struct perf_session *perf_session__new(const char *filename, int mode,
  92                                        bool force, bool repipe,
  93                                        struct perf_event_ops *ops);
  94 void perf_session__delete(struct perf_session *self);
  95
  96 void perf_event_header__bswap(struct perf_event_header *self);
  97
  98 int __perf_session__process_events(struct perf_session *self,
  99                                    u64 data_offset, u64 data_size, u64 size,
 100                                    struct perf_event_ops *ops);
 101 int perf_session__process_events(struct perf_session *self,
 102                                  struct perf_event_ops *event_ops);
 103
 104 int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
 105                                     struct thread *thread,
 106                                     struct ip_callchain *chain,
 107                                     struct symbol **parent);
 108
 109 bool perf_session__has_traces(struct perf_session *self, const char *msg);
 110
 111 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
 112                                              const char *symbol_name,
 113                                              u64 addr);
 114
 115 void mem_bswap_64(void *src, int byte_size);
 116 void perf_event__attr_swap(struct perf_event_attr *attr);
 117
 118 int perf_session__create_kernel_maps(struct perf_session *self);
 119
 120 void perf_session__update_sample_type(struct perf_session *self);
 121 void perf_session__remove_thread(struct perf_session *self, struct thread *th);
 122
 123 static inline
 124 struct machine *perf_session__find_host_machine(struct perf_session *self)
 125 {
 126         return &self->host_machine;
 127 }
 128
 129 static inline
 130 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
 131 {
 132         if (pid == HOST_KERNEL_ID)
 133                 return &self->host_machine;
 134         return machines__find(&self->machines, pid);
 135 }
 136
 137 static inline
 138 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 139 {
 140         if (pid == HOST_KERNEL_ID)
 141                 return &self->host_machine;
 142         return machines__findnew(&self->machines, pid);
 143 }
 144
 145 static inline
 146 void perf_session__process_machines(struct perf_session *self,
 147                                     struct perf_event_ops *ops,
 148                                     machine__process_t process)
 149 {
 150         process(&self->host_machine, ops);
 151         return machines__process(&self->machines, process, ops);
 152 }
 153
 154 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 155
 156 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
 157                                           FILE *fp, bool with_hits);
 158
 159 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 160
 161 static inline int perf_session__parse_sample(struct perf_session *session,
 162                                              const union perf_event *event,
 163                                              struct perf_sample *sample)
 164 {
 165         return perf_event__parse_sample(event, session->sample_type,
 166                                         session->sample_size,
 167                                         session->sample_id_all, sample,
 168                                         session->header.needs_swap);
 169 }
 170
 171 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 172                                             unsigned int type);
 173
 174 void perf_session__print_ip(union perf_event *event, struct perf_evsel *evsel,
 175                                  struct perf_sample *sample,
 176                                  struct perf_session *session,
 177                                  int print_sym, int print_dso);
 178
 179 int perf_session__cpu_bitmap(struct perf_session *session,
 180                              const char *cpu_list, unsigned long *cpu_bitmap);
 181
 182 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 183 #endif /* __PERF_SESSION_H */