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