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[1];
  54 };
  55
  56 struct perf_tool;
  57
  58 struct perf_session *perf_session__new(const char *filename, int mode,
  59                                        bool force, bool repipe,
  60                                        struct perf_tool *tool);
  61 void perf_session__delete(struct perf_session *self);
  62
  63 void perf_event_header__bswap(struct perf_event_header *self);
  64
  65 int __perf_session__process_events(struct perf_session *self,
  66                                    u64 data_offset, u64 data_size, u64 size,
  67                                    struct perf_tool *tool);
  68 int perf_session__process_events(struct perf_session *self,
  69                                  struct perf_tool *tool);
  70
  71 int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
  72                                     struct thread *thread,
  73                                     struct ip_callchain *chain,
  74                                     struct symbol **parent);
  75
  76 struct branch_info *machine__resolve_bstack(struct machine *self,
  77                                             struct thread *thread,
  78                                             struct branch_stack *bs);
  79
  80 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  81
  82 void mem_bswap_64(void *src, int byte_size);
  83 void perf_event__attr_swap(struct perf_event_attr *attr);
  84
  85 int perf_session__create_kernel_maps(struct perf_session *self);
  86
  87 void perf_session__update_sample_type(struct perf_session *self);
  88 void perf_session__remove_thread(struct perf_session *self, struct thread *th);
  89
  90 static inline
  91 struct machine *perf_session__find_host_machine(struct perf_session *self)
  92 {
  93         return &self->host_machine;
  94 }
  95
  96 static inline
  97 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
  98 {
  99         if (pid == HOST_KERNEL_ID)
 100                 return &self->host_machine;
 101         return machines__find(&self->machines, pid);
 102 }
 103
 104 static inline
 105 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 106 {
 107         if (pid == HOST_KERNEL_ID)
 108                 return &self->host_machine;
 109         return machines__findnew(&self->machines, pid);
 110 }
 111
 112 static inline
 113 void perf_session__process_machines(struct perf_session *self,
 114                                     struct perf_tool *tool,
 115                                     machine__process_t process)
 116 {
 117         process(&self->host_machine, tool);
 118         return machines__process(&self->machines, process, tool);
 119 }
 120
 121 struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
 122 size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
 123
 124 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 125
 126 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
 127                                           FILE *fp, bool with_hits);
 128
 129 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 130
 131 static inline int perf_session__parse_sample(struct perf_session *session,
 132                                              const union perf_event *event,
 133                                              struct perf_sample *sample)
 134 {
 135         return perf_event__parse_sample(event, session->sample_type,
 136                                         session->sample_size,
 137                                         session->sample_id_all, sample,
 138                                         session->header.needs_swap);
 139 }
 140
 141 static inline int perf_session__synthesize_sample(struct perf_session *session,
 142                                                   union perf_event *event,
 143                                                   const struct perf_sample *sample)
 144 {
 145         return perf_event__synthesize_sample(event, session->sample_type,
 146                                              sample, session->header.needs_swap);
 147 }
 148
 149 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 150                                             unsigned int type);
 151
 152 void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
 153                           struct machine *machine, struct perf_evsel *evsel,
 154                           int print_sym, int print_dso, int print_symoffset);
 155
 156 int perf_session__cpu_bitmap(struct perf_session *session,
 157                              const char *cpu_list, unsigned long *cpu_bitmap);
 158
 159 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 160 #endif /* __PERF_SESSION_H */