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         char             event_copy[PERF_SAMPLE_MAX_SIZE];
  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         size_t           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 struct perf_evlist *perf_evlist__new_default(void);
  57 void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
  58                        struct thread_map *threads);
  59 void perf_evlist__exit(struct perf_evlist *evlist);
  60 void perf_evlist__delete(struct perf_evlist *evlist);
  61
  62 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
  63 int perf_evlist__add_default(struct perf_evlist *evlist);
  64 int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
  65                                      struct perf_event_attr *attrs, size_t nr_attrs);
  66
  67 #define perf_evlist__add_default_attrs(evlist, array) \
  68         __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
  69
  70 int perf_evlist__add_newtp(struct perf_evlist *evlist,
  71                            const char *sys, const char *name, void *handler);
  72
  73 int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
  74
  75 struct perf_evsel *
  76 perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
  77
  78 struct perf_evsel *
  79 perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
  80                                      const char *name);
  81
  82 void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
  83                          int cpu, int thread, u64 id);
  84
  85 void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
  86
  87 struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
  88
  89 struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
  90
  91 union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx);
  92
  93 int perf_evlist__open(struct perf_evlist *evlist);
  94 void perf_evlist__close(struct perf_evlist *evlist);
  95
  96 void perf_evlist__set_id_pos(struct perf_evlist *evlist);
  97 bool perf_can_sample_identifier(void);
  98 void perf_evlist__config(struct perf_evlist *evlist,
  99                          struct perf_record_opts *opts);
 100
 101 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
 102                                   struct perf_target *target,
 103                                   const char *argv[], bool pipe_output,
 104                                   bool want_signal);
 105 int perf_evlist__start_workload(struct perf_evlist *evlist);
 106
 107 int perf_evlist__parse_mmap_pages(const struct option *opt,
 108                                   const char *str,
 109                                   int unset);
 110
 111 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
 112                       bool overwrite);
 113 void perf_evlist__munmap(struct perf_evlist *evlist);
 114
 115 void perf_evlist__disable(struct perf_evlist *evlist);
 116 void perf_evlist__enable(struct perf_evlist *evlist);
 117
 118 int perf_evlist__disable_event(struct perf_evlist *evlist,
 119                                struct perf_evsel *evsel);
 120 int perf_evlist__enable_event(struct perf_evlist *evlist,
 121                               struct perf_evsel *evsel);
 122
 123 void perf_evlist__set_selected(struct perf_evlist *evlist,
 124                                struct perf_evsel *evsel);
 125
 126 static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
 127                                          struct cpu_map *cpus,
 128                                          struct thread_map *threads)
 129 {
 130         evlist->cpus    = cpus;
 131         evlist->threads = threads;
 132 }
 133
 134 int perf_evlist__create_maps(struct perf_evlist *evlist,
 135                              struct perf_target *target);
 136 void perf_evlist__delete_maps(struct perf_evlist *evlist);
 137 int perf_evlist__apply_filters(struct perf_evlist *evlist);
 138
 139 void __perf_evlist__set_leader(struct list_head *list);
 140 void perf_evlist__set_leader(struct perf_evlist *evlist);
 141
 142 u64 perf_evlist__read_format(struct perf_evlist *evlist);
 143 u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
 144 u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
 145 bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
 146 u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
 147
 148 int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
 149                               struct perf_sample *sample);
 150
 151 bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
 152 bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
 153 bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
 154
 155 void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
 156                                    struct list_head *list,
 157                                    int nr_entries);
 158
 159 static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
 160 {
 161         return list_entry(evlist->entries.next, struct perf_evsel, node);
 162 }
 163
 164 static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
 165 {
 166         return list_entry(evlist->entries.prev, struct perf_evsel, node);
 167 }
 168
 169 size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
 170
 171 int perf_evlist__strerror_tp(struct perf_evlist *evlist, int err, char *buf, size_t size);
 172
 173 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
 174 {
 175         struct perf_event_mmap_page *pc = mm->base;
 176         int head = pc->data_head;
 177         rmb();
 178         return head;
 179 }
 180
 181 static inline void perf_mmap__write_tail(struct perf_mmap *md,
 182                                          unsigned long tail)
 183 {
 184         struct perf_event_mmap_page *pc = md->base;
 185
 186         /*
 187          * ensure all reads are done before we write the tail out.
 188          */
 189         /* mb(); */
 190         pc->data_tail = tail;
 191 }
 192
 193 #endif /* __PERF_EVLIST_H */