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         int                     fd;
  45         bool                    fd_pipe;
  46         bool                    repipe;
  47         int                     cwdlen;
  48         char                    *cwd;
  49         struct ordered_samples  ordered_samples;
  50         char                    filename[1];
  51 };
  52
  53 struct perf_tool;
  54
  55 struct perf_session *perf_session__new(const char *filename, int mode,
  56                                        bool force, bool repipe,
  57                                        struct perf_tool *tool);
  58 void perf_session__delete(struct perf_session *self);
  59
  60 void perf_event_header__bswap(struct perf_event_header *self);
  61
  62 int __perf_session__process_events(struct perf_session *self,
  63                                    u64 data_offset, u64 data_size, u64 size,
  64                                    struct perf_tool *tool);
  65 int perf_session__process_events(struct perf_session *self,
  66                                  struct perf_tool *tool);
  67
  68 int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
  69                                     struct thread *thread,
  70                                     struct ip_callchain *chain,
  71                                     struct symbol **parent);
  72
  73 struct branch_info *machine__resolve_bstack(struct machine *self,
  74                                             struct thread *thread,
  75                                             struct branch_stack *bs);
  76
  77 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  78
  79 void mem_bswap_64(void *src, int byte_size);
  80 void mem_bswap_32(void *src, int byte_size);
  81 void perf_event__attr_swap(struct perf_event_attr *attr);
  82
  83 int perf_session__create_kernel_maps(struct perf_session *self);
  84
  85 void perf_session__set_id_hdr_size(struct perf_session *session);
  86 void perf_session__remove_thread(struct perf_session *self, struct thread *th);
  87
  88 static inline
  89 struct machine *perf_session__find_host_machine(struct perf_session *self)
  90 {
  91         return &self->host_machine;
  92 }
  93
  94 static inline
  95 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
  96 {
  97         if (pid == HOST_KERNEL_ID)
  98                 return &self->host_machine;
  99         return machines__find(&self->machines, pid);
 100 }
 101
 102 static inline
 103 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 104 {
 105         if (pid == HOST_KERNEL_ID)
 106                 return &self->host_machine;
 107         return machines__findnew(&self->machines, pid);
 108 }
 109
 110 static inline
 111 void perf_session__process_machines(struct perf_session *self,
 112                                     struct perf_tool *tool,
 113                                     machine__process_t process)
 114 {
 115         process(&self->host_machine, tool);
 116         return machines__process(&self->machines, process, tool);
 117 }
 118
 119 struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
 120 size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
 121
 122 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 123
 124 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
 125                                           FILE *fp, bool with_hits);
 126
 127 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 128
 129 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 130                                             unsigned int type);
 131
 132 void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
 133                           struct machine *machine, int print_sym,
 134                           int print_dso, int print_symoffset);
 135
 136 int perf_session__cpu_bitmap(struct perf_session *session,
 137                              const char *cpu_list, unsigned long *cpu_bitmap);
 138
 139 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 140
 141 struct perf_evsel_str_handler;
 142
 143 int __perf_session__set_tracepoints_handlers(struct perf_session *session,
 144                                              const struct perf_evsel_str_handler *assocs,
 145                                              size_t nr_assocs);
 146
 147 #define perf_session__set_tracepoints_handlers(session, array) \
 148         __perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
 149 #endif /* __PERF_SESSION_H */