Pileus Git - ~andy/linux/blob - tools/perf/util/evlist.h

   1 #ifndef __PERF_EVLIST_H
   2 #define __PERF_EVLIST_H 1
   3
   4 #include <linux/list.h>
   5 #include <stdio.h>
   6 #include "../perf.h"
   7 #include "event.h"
   8 #include "evsel.h"
   9 #include "util.h"
  10 #include <unistd.h>
  11
  12 struct pollfd;
  13 struct thread_map;
  14 struct cpu_map;
  15 struct perf_record_opts;
  16
  17 #define PERF_EVLIST__HLIST_BITS 8
  18 #define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
  19
  20 struct perf_mmap {
  21         void             *base;
  22         int              mask;
  23         unsigned int     prev;
  24         union perf_event event_copy;
  25 };
  26
  27 struct perf_evlist {
  28         struct list_head entries;
  29         struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
  30         int              nr_entries;
  31         int              nr_groups;
  32         int              nr_fds;
  33         int              nr_mmaps;
  34         int              mmap_len;
  35         int              id_pos;
  36         int              is_pos;
  37         u64              combined_sample_type;
  38         struct {
  39                 int     cork_fd;
  40                 pid_t   pid;
  41         } workload;
  42         bool             overwrite;
  43         struct perf_mmap *mmap;
  44         struct pollfd    *pollfd;
  45         struct thread_map *threads;
  46         struct cpu_map    *cpus;
  47         struct perf_evsel *selected;
  48 };
  49
  50 struct perf_evsel_str_handler {
  51         const char *name;
  52         void       *handler;
  53 };
  54
  55 struct perf_evlist *perf_evlist__new(void);
  56 void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
  57                        struct thread_map *threads);
  58 void perf_evlist__exit(struct perf_evlist *evlist);
  59 void perf_evlist__delete(struct perf_evlist *evlist);
  60
  61 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
  62 int perf_evlist__add_default(struct perf_evlist *evlist);
  63 int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
  64                                      struct perf_event_attr *attrs, size_t nr_attrs);
  65
  66 #define perf_evlist__add_default_attrs(evlist, array) \
  67         __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
  68
  69 int perf_evlist__add_newtp(struct perf_evlist *evlist,
  70                            const char *sys, const char *name, void *handler);
  71
  72 int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
  73
  74 struct perf_evsel *
  75 perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
  76
  77 struct perf_evsel *
  78 perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
  79                                      const char *name);
  80
  81 void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
  82                          int cpu, int thread, u64 id);
  83
  84 void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
  85
  86 struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
  87
  88 struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
  89
  90 union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx);
  91
  92 int perf_evlist__open(struct perf_evlist *evlist);
  93 void perf_evlist__close(struct perf_evlist *evlist);
  94
  95 void perf_evlist__set_id_pos(struct perf_evlist *evlist);
  96 bool perf_can_sample_identifier(void);
  97 void perf_evlist__config(struct perf_evlist *evlist,
  98                          struct perf_record_opts *opts);
  99
 100 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
 101                                   struct perf_target *target,
 102                                   const char *argv[], bool pipe_output,
 103                                   bool want_signal);
 104 int perf_evlist__start_workload(struct perf_evlist *evlist);
 105
 106 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
 107                       bool overwrite);
 108 void perf_evlist__munmap(struct perf_evlist *evlist);
 109
 110 void perf_evlist__disable(struct perf_evlist *evlist);
 111 void perf_evlist__enable(struct perf_evlist *evlist);
 112
 113 int perf_evlist__disable_event(struct perf_evlist *evlist,
 114                                struct perf_evsel *evsel);
 115 int perf_evlist__enable_event(struct perf_evlist *evlist,
 116                               struct perf_evsel *evsel);
 117
 118 void perf_evlist__set_selected(struct perf_evlist *evlist,
 119                                struct perf_evsel *evsel);
 120
 121 static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
 122                                          struct cpu_map *cpus,
 123                                          struct thread_map *threads)
 124 {
 125         evlist->cpus    = cpus;
 126         evlist->threads = threads;
 127 }
 128
 129 int perf_evlist__create_maps(struct perf_evlist *evlist,
 130                              struct perf_target *target);
 131 void perf_evlist__delete_maps(struct perf_evlist *evlist);
 132 int perf_evlist__apply_filters(struct perf_evlist *evlist);
 133
 134 void __perf_evlist__set_leader(struct list_head *list);
 135 void perf_evlist__set_leader(struct perf_evlist *evlist);
 136
 137 u64 perf_evlist__read_format(struct perf_evlist *evlist);
 138 u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
 139 u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
 140 bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
 141 u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
 142
 143 int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
 144                               struct perf_sample *sample);
 145
 146 bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
 147 bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
 148 bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
 149
 150 void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
 151                                    struct list_head *list,
 152                                    int nr_entries);
 153
 154 static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
 155 {
 156         return list_entry(evlist->entries.next, struct perf_evsel, node);
 157 }
 158
 159 static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
 160 {
 161         return list_entry(evlist->entries.prev, struct perf_evsel, node);
 162 }
 163
 164 size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
 165
 166 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
 167 {
 168         struct perf_event_mmap_page *pc = mm->base;
 169         int head = pc->data_head;
 170         rmb();
 171         return head;
 172 }
 173
 174 static inline void perf_mmap__write_tail(struct perf_mmap *md,
 175                                          unsigned long tail)
 176 {
 177         struct perf_event_mmap_page *pc = md->base;
 178
 179         /*
 180          * ensure all reads are done before we write the tail out.
 181          */
 182         /* mb(); */
 183         pc->data_tail = tail;
 184 }
 185
 186 #endif /* __PERF_EVLIST_H */