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_head;
  21         struct sample_queue     *last_inserted;
  22 };
  23
  24 struct perf_session {
  25         struct perf_header      header;
  26         unsigned long           size;
  27         unsigned long           mmap_window;
  28         struct rb_root          threads;
  29         struct thread           *last_match;
  30         struct machine          host_machine;
  31         struct rb_root          machines;
  32         struct rb_root          hists_tree;
  33         unsigned long           event_total[PERF_RECORD_MAX];
  34         unsigned long           unknown_events;
  35         /*
  36          * FIXME: should point to the first entry in hists_tree and
  37          *        be a hists instance. Right now its only 'report'
  38          *        that is using ->hists_tree while all the rest use
  39          *        ->hists.
  40          */
  41         struct hists            hists;
  42         u64                     sample_type;
  43         int                     fd;
  44         bool                    fd_pipe;
  45         bool                    repipe;
  46         int                     cwdlen;
  47         char                    *cwd;
  48         struct ordered_samples  ordered_samples;
  49         char filename[0];
  50 };
  51
  52 struct perf_event_ops;
  53
  54 typedef int (*event_op)(event_t *self, struct perf_session *session);
  55 typedef int (*event_op2)(event_t *self, struct perf_session *session,
  56                          struct perf_event_ops *ops);
  57
  58 struct perf_event_ops {
  59         event_op        sample,
  60                         mmap,
  61                         comm,
  62                         fork,
  63                         exit,
  64                         lost,
  65                         read,
  66                         throttle,
  67                         unthrottle,
  68                         attr,
  69                         event_type,
  70                         tracing_data,
  71                         build_id;
  72         event_op2       finished_round;
  73         bool            ordered_samples;
  74 };
  75
  76 struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe);
  77 void perf_session__delete(struct perf_session *self);
  78
  79 void perf_event_header__bswap(struct perf_event_header *self);
  80
  81 int __perf_session__process_events(struct perf_session *self,
  82                                    u64 data_offset, u64 data_size, u64 size,
  83                                    struct perf_event_ops *ops);
  84 int perf_session__process_events(struct perf_session *self,
  85                                  struct perf_event_ops *event_ops);
  86
  87 struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
  88                                                    struct thread *thread,
  89                                                    struct ip_callchain *chain,
  90                                                    struct symbol **parent);
  91
  92 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  93
  94 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
  95                                              const char *symbol_name,
  96                                              u64 addr);
  97
  98 void mem_bswap_64(void *src, int byte_size);
  99
 100 int perf_session__create_kernel_maps(struct perf_session *self);
 101
 102 int do_read(int fd, void *buf, size_t size);
 103 void perf_session__update_sample_type(struct perf_session *self);
 104
 105 static inline
 106 struct machine *perf_session__find_host_machine(struct perf_session *self)
 107 {
 108         return &self->host_machine;
 109 }
 110
 111 static inline
 112 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
 113 {
 114         if (pid == HOST_KERNEL_ID)
 115                 return &self->host_machine;
 116         return machines__find(&self->machines, pid);
 117 }
 118
 119 static inline
 120 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 121 {
 122         if (pid == HOST_KERNEL_ID)
 123                 return &self->host_machine;
 124         return machines__findnew(&self->machines, pid);
 125 }
 126
 127 static inline
 128 void perf_session__process_machines(struct perf_session *self,
 129                                     machine__process_t process)
 130 {
 131         process(&self->host_machine, self);
 132         return machines__process(&self->machines, process, self);
 133 }
 134
 135 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 136
 137 static inline
 138 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp,
 139                                           bool with_hits)
 140 {
 141         return machines__fprintf_dsos_buildid(&self->machines, fp, with_hits);
 142 }
 143 #endif /* __PERF_SESSION_H */