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 "machine.h"
   8 #include "symbol.h"
   9 #include "thread.h"
  10 #include <linux/rbtree.h>
  11 #include <linux/perf_event.h>
  12
  13 struct sample_queue;
  14 struct ip_callchain;
  15 struct thread;
  16
  17 struct ordered_samples {
  18         u64                     last_flush;
  19         u64                     next_flush;
  20         u64                     max_timestamp;
  21         struct list_head        samples;
  22         struct list_head        sample_cache;
  23         struct list_head        to_free;
  24         struct sample_queue     *sample_buffer;
  25         struct sample_queue     *last_sample;
  26         int                     sample_buffer_idx;
  27         unsigned int            nr_samples;
  28 };
  29
  30 struct perf_session {
  31         struct perf_header      header;
  32         unsigned long           size;
  33         unsigned long           mmap_window;
  34         struct machine          host_machine;
  35         struct rb_root          machines;
  36         struct perf_evlist      *evlist;
  37         struct pevent           *pevent;
  38         /*
  39          * FIXME: Need to split this up further, we need global
  40          *        stats + per event stats.
  41          */
  42         struct hists            hists;
  43         int                     fd;
  44         bool                    fd_pipe;
  45         bool                    repipe;
  46         int                     cwdlen;
  47         char                    *cwd;
  48         struct ordered_samples  ordered_samples;
  49         char                    filename[1];
  50 };
  51
  52 struct perf_tool;
  53
  54 struct perf_session *perf_session__new(const char *filename, int mode,
  55                                        bool force, bool repipe,
  56                                        struct perf_tool *tool);
  57 void perf_session__delete(struct perf_session *self);
  58
  59 void perf_event_header__bswap(struct perf_event_header *self);
  60
  61 int __perf_session__process_events(struct perf_session *self,
  62                                    u64 data_offset, u64 data_size, u64 size,
  63                                    struct perf_tool *tool);
  64 int perf_session__process_events(struct perf_session *self,
  65                                  struct perf_tool *tool);
  66
  67 int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
  68                                     struct thread *thread,
  69                                     struct ip_callchain *chain,
  70                                     struct symbol **parent);
  71
  72 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  73
  74 void mem_bswap_64(void *src, int byte_size);
  75 void mem_bswap_32(void *src, int byte_size);
  76 void perf_event__attr_swap(struct perf_event_attr *attr);
  77
  78 int perf_session__create_kernel_maps(struct perf_session *self);
  79
  80 void perf_session__set_id_hdr_size(struct perf_session *session);
  81 void perf_session__remove_thread(struct perf_session *self, struct thread *th);
  82
  83 static inline
  84 struct machine *perf_session__find_host_machine(struct perf_session *self)
  85 {
  86         return &self->host_machine;
  87 }
  88
  89 static inline
  90 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
  91 {
  92         if (pid == HOST_KERNEL_ID)
  93                 return &self->host_machine;
  94         return machines__find(&self->machines, pid);
  95 }
  96
  97 static inline
  98 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
  99 {
 100         if (pid == HOST_KERNEL_ID)
 101                 return &self->host_machine;
 102         return machines__findnew(&self->machines, pid);
 103 }
 104
 105 static inline
 106 void perf_session__process_machines(struct perf_session *self,
 107                                     struct perf_tool *tool,
 108                                     machine__process_t process)
 109 {
 110         process(&self->host_machine, tool);
 111         return machines__process(&self->machines, process, tool);
 112 }
 113
 114 struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
 115 size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
 116
 117 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 118
 119 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
 120                                           FILE *fp, bool with_hits);
 121
 122 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
 123
 124 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 125                                             unsigned int type);
 126
 127 void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event,
 128                           struct perf_sample *sample, struct machine *machine,
 129                           int print_sym, int print_dso, int print_symoffset);
 130
 131 int perf_session__cpu_bitmap(struct perf_session *session,
 132                              const char *cpu_list, unsigned long *cpu_bitmap);
 133
 134 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 135
 136 struct perf_evsel_str_handler;
 137
 138 int __perf_session__set_tracepoints_handlers(struct perf_session *session,
 139                                              const struct perf_evsel_str_handler *assocs,
 140                                              size_t nr_assocs);
 141
 142 #define perf_session__set_tracepoints_handlers(session, array) \
 143         __perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
 144 #endif /* __PERF_SESSION_H */