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                     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 mem_bswap_32(void *src, int byte_size);
  84 void perf_event__attr_swap(struct perf_event_attr *attr);
  85
  86 int perf_session__create_kernel_maps(struct perf_session *self);
  87
  88 void perf_session__update_sample_type(struct perf_session *self);
  89 void perf_session__remove_thread(struct perf_session *self, struct thread *th);
  90
  91 static inline
  92 struct machine *perf_session__find_host_machine(struct perf_session *self)
  93 {
  94         return &self->host_machine;
  95 }
  96
  97 static inline
  98 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
  99 {
 100         if (pid == HOST_KERNEL_ID)
 101                 return &self->host_machine;
 102         return machines__find(&self->machines, pid);
 103 }
 104
 105 static inline
 106 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 107 {
 108         if (pid == HOST_KERNEL_ID)
 109                 return &self->host_machine;
 110         return machines__findnew(&self->machines, pid);
 111 }
 112
 113 static inline
 114 void perf_session__process_machines(struct perf_session *self,
 115                                     struct perf_tool *tool,
 116                                     machine__process_t process)
 117 {
 118         process(&self->host_machine, tool);
 119         return machines__process(&self->machines, process, tool);
 120 }
 121
 122 struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
 123 size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
 124
 125 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 126
 127 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
 128                                           FILE *fp, bool with_hits);
 129
 130 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 131
 132 int perf_session__parse_sample(struct perf_session *session,
 133                                const union perf_event *event,
 134                                struct perf_sample *sample);
 135
 136 static inline int perf_session__synthesize_sample(struct perf_session *session,
 137                                                   union perf_event *event,
 138                                                   const struct perf_sample *sample)
 139 {
 140         return perf_event__synthesize_sample(event, session->sample_type,
 141                                              sample, session->header.needs_swap);
 142 }
 143
 144 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 145                                             unsigned int type);
 146
 147 void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
 148                           struct machine *machine, int print_sym,
 149                           int print_dso, int print_symoffset);
 150
 151 int perf_session__cpu_bitmap(struct perf_session *session,
 152                              const char *cpu_list, unsigned long *cpu_bitmap);
 153
 154 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 155
 156 struct perf_evsel_str_handler;
 157
 158 int __perf_session__set_tracepoints_handlers(struct perf_session *session,
 159                                              const struct perf_evsel_str_handler *assocs,
 160                                              size_t nr_assocs);
 161
 162 #define perf_session__set_tracepoints_handlers(session, array) \
 163         __perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
 164 #endif /* __PERF_SESSION_H */