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         struct pevent           *pevent;
  37         /*
  38          * FIXME: Need to split this up further, we need global
  39          *        stats + per event stats. 'perf diff' also needs
  40          *        to properly support multiple events in a single
  41          *        perf.data file.
  42          */
  43         struct hists            hists;
  44         u64                     sample_type;
  45         int                     sample_size;
  46         int                     fd;
  47         bool                    fd_pipe;
  48         bool                    repipe;
  49         bool                    sample_id_all;
  50         u16                     id_hdr_size;
  51         int                     cwdlen;
  52         char                    *cwd;
  53         struct ordered_samples  ordered_samples;
  54         char                    filename[1];
  55 };
  56
  57 struct perf_tool;
  58
  59 struct perf_session *perf_session__new(const char *filename, int mode,
  60                                        bool force, bool repipe,
  61                                        struct perf_tool *tool);
  62 void perf_session__delete(struct perf_session *self);
  63
  64 void perf_event_header__bswap(struct perf_event_header *self);
  65
  66 int __perf_session__process_events(struct perf_session *self,
  67                                    u64 data_offset, u64 data_size, u64 size,
  68                                    struct perf_tool *tool);
  69 int perf_session__process_events(struct perf_session *self,
  70                                  struct perf_tool *tool);
  71
  72 int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
  73                                     struct thread *thread,
  74                                     struct ip_callchain *chain,
  75                                     struct symbol **parent);
  76
  77 struct branch_info *machine__resolve_bstack(struct machine *self,
  78                                             struct thread *thread,
  79                                             struct branch_stack *bs);
  80
  81 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  82
  83 void mem_bswap_64(void *src, int byte_size);
  84 void mem_bswap_32(void *src, int byte_size);
  85 void perf_event__attr_swap(struct perf_event_attr *attr);
  86
  87 int perf_session__create_kernel_maps(struct perf_session *self);
  88
  89 void perf_session__update_sample_type(struct perf_session *self);
  90 void perf_session__remove_thread(struct perf_session *self, struct thread *th);
  91
  92 static inline
  93 struct machine *perf_session__find_host_machine(struct perf_session *self)
  94 {
  95         return &self->host_machine;
  96 }
  97
  98 static inline
  99 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
 100 {
 101         if (pid == HOST_KERNEL_ID)
 102                 return &self->host_machine;
 103         return machines__find(&self->machines, pid);
 104 }
 105
 106 static inline
 107 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 108 {
 109         if (pid == HOST_KERNEL_ID)
 110                 return &self->host_machine;
 111         return machines__findnew(&self->machines, pid);
 112 }
 113
 114 static inline
 115 void perf_session__process_machines(struct perf_session *self,
 116                                     struct perf_tool *tool,
 117                                     machine__process_t process)
 118 {
 119         process(&self->host_machine, tool);
 120         return machines__process(&self->machines, process, tool);
 121 }
 122
 123 struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
 124 size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
 125
 126 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 127
 128 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
 129                                           FILE *fp, bool with_hits);
 130
 131 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 132
 133 static inline int perf_session__parse_sample(struct perf_session *session,
 134                                              const union perf_event *event,
 135                                              struct perf_sample *sample)
 136 {
 137         return perf_event__parse_sample(event, session->sample_type,
 138                                         session->sample_size,
 139                                         session->sample_id_all, sample,
 140                                         session->header.needs_swap);
 141 }
 142
 143 static inline int perf_session__synthesize_sample(struct perf_session *session,
 144                                                   union perf_event *event,
 145                                                   const struct perf_sample *sample)
 146 {
 147         return perf_event__synthesize_sample(event, session->sample_type,
 148                                              sample, session->header.needs_swap);
 149 }
 150
 151 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 152                                             unsigned int type);
 153
 154 void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
 155                           struct machine *machine, int print_sym,
 156                           int print_dso, int print_symoffset);
 157
 158 int perf_session__cpu_bitmap(struct perf_session *session,
 159                              const char *cpu_list, unsigned long *cpu_bitmap);
 160
 161 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 162
 163 struct perf_evsel_str_handler;
 164
 165 int __perf_session__set_tracepoints_handlers(struct perf_session *session,
 166                                              const struct perf_evsel_str_handler *assocs,
 167                                              size_t nr_assocs);
 168
 169 #define perf_session__set_tracepoints_handlers(session, array) \
 170         __perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
 171 #endif /* __PERF_SESSION_H */