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 list_head        dead_threads;
  30         struct thread           *last_match;
  31         struct machine          host_machine;
  32         struct rb_root          machines;
  33         struct rb_root          hists_tree;
  34         /*
  35          * FIXME: should point to the first entry in hists_tree and
  36          *        be a hists instance. Right now its only 'report'
  37          *        that is using ->hists_tree while all the rest use
  38          *        ->hists.
  39          */
  40         struct hists            hists;
  41         u64                     sample_type;
  42         int                     fd;
  43         bool                    fd_pipe;
  44         bool                    repipe;
  45         int                     cwdlen;
  46         char                    *cwd;
  47         struct ordered_samples  ordered_samples;
  48         char filename[0];
  49 };
  50
  51 struct perf_event_ops;
  52
  53 typedef int (*event_op)(event_t *self, struct perf_session *session);
  54 typedef int (*event_op2)(event_t *self, struct perf_session *session,
  55                          struct perf_event_ops *ops);
  56
  57 struct perf_event_ops {
  58         event_op        sample,
  59                         mmap,
  60                         comm,
  61                         fork,
  62                         exit,
  63                         lost,
  64                         read,
  65                         throttle,
  66                         unthrottle,
  67                         attr,
  68                         event_type,
  69                         tracing_data,
  70                         build_id;
  71         event_op2       finished_round;
  72         bool            ordered_samples;
  73 };
  74
  75 struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe);
  76 void perf_session__delete(struct perf_session *self);
  77
  78 void perf_event_header__bswap(struct perf_event_header *self);
  79
  80 int __perf_session__process_events(struct perf_session *self,
  81                                    u64 data_offset, u64 data_size, u64 size,
  82                                    struct perf_event_ops *ops);
  83 int perf_session__process_events(struct perf_session *self,
  84                                  struct perf_event_ops *event_ops);
  85
  86 struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
  87                                                    struct thread *thread,
  88                                                    struct ip_callchain *chain,
  89                                                    struct symbol **parent);
  90
  91 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  92
  93 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
  94                                              const char *symbol_name,
  95                                              u64 addr);
  96
  97 void mem_bswap_64(void *src, int byte_size);
  98
  99 int perf_session__create_kernel_maps(struct perf_session *self);
 100
 101 int do_read(int fd, void *buf, size_t size);
 102 void perf_session__update_sample_type(struct perf_session *self);
 103 void perf_session__remove_thread(struct perf_session *self, struct thread *th);
 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 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
 138                                           FILE *fp, bool with_hits);
 139
 140 static inline
 141 size_t perf_session__fprintf_nr_events(struct perf_session *self, FILE *fp)
 142 {
 143         return hists__fprintf_nr_events(&self->hists, fp);
 144 }
 145 #endif /* __PERF_SESSION_H */