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 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  77
  78 void mem_bswap_64(void *src, int byte_size);
  79 void perf_event__attr_swap(struct perf_event_attr *attr);
  80
  81 int perf_session__create_kernel_maps(struct perf_session *self);
  82
  83 void perf_session__update_sample_type(struct perf_session *self);
  84 void perf_session__remove_thread(struct perf_session *self, struct thread *th);
  85
  86 static inline
  87 struct machine *perf_session__find_host_machine(struct perf_session *self)
  88 {
  89         return &self->host_machine;
  90 }
  91
  92 static inline
  93 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
  94 {
  95         if (pid == HOST_KERNEL_ID)
  96                 return &self->host_machine;
  97         return machines__find(&self->machines, pid);
  98 }
  99
 100 static inline
 101 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 102 {
 103         if (pid == HOST_KERNEL_ID)
 104                 return &self->host_machine;
 105         return machines__findnew(&self->machines, pid);
 106 }
 107
 108 static inline
 109 void perf_session__process_machines(struct perf_session *self,
 110                                     struct perf_tool *tool,
 111                                     machine__process_t process)
 112 {
 113         process(&self->host_machine, tool);
 114         return machines__process(&self->machines, process, tool);
 115 }
 116
 117 struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
 118 size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
 119
 120 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 121
 122 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
 123                                           FILE *fp, bool with_hits);
 124
 125 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 126
 127 static inline int perf_session__parse_sample(struct perf_session *session,
 128                                              const union perf_event *event,
 129                                              struct perf_sample *sample)
 130 {
 131         return perf_event__parse_sample(event, session->sample_type,
 132                                         session->sample_size,
 133                                         session->sample_id_all, sample,
 134                                         session->header.needs_swap);
 135 }
 136
 137 static inline int perf_session__synthesize_sample(struct perf_session *session,
 138                                                   union perf_event *event,
 139                                                   const struct perf_sample *sample)
 140 {
 141         return perf_event__synthesize_sample(event, session->sample_type,
 142                                              sample, session->header.needs_swap);
 143 }
 144
 145 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 146                                             unsigned int type);
 147
 148 void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
 149                           struct machine *machine, struct perf_evsel *evsel,
 150                           int print_sym, int print_dso);
 151
 152 int perf_session__cpu_bitmap(struct perf_session *session,
 153                              const char *cpu_list, unsigned long *cpu_bitmap);
 154
 155 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 156 #endif /* __PERF_SESSION_H */