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 void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx); 93 94 int perf_evlist__open(struct perf_evlist *evlist); 95 void perf_evlist__close(struct perf_evlist *evlist); 96 97 void perf_evlist__set_id_pos(struct perf_evlist *evlist); 98 bool perf_can_sample_identifier(void); 99 void perf_evlist__config(struct perf_evlist *evlist, 100 struct perf_record_opts *opts); 101 102 int perf_evlist__prepare_workload(struct perf_evlist *evlist, 103 struct perf_target *target, 104 const char *argv[], bool pipe_output, 105 bool want_signal); 106 int perf_evlist__start_workload(struct perf_evlist *evlist); 107 108 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages, 109 bool overwrite); 110 void perf_evlist__munmap(struct perf_evlist *evlist); 111 112 void perf_evlist__disable(struct perf_evlist *evlist); 113 void perf_evlist__enable(struct perf_evlist *evlist); 114 115 int perf_evlist__disable_event(struct perf_evlist *evlist, 116 struct perf_evsel *evsel); 117 int perf_evlist__enable_event(struct perf_evlist *evlist, 118 struct perf_evsel *evsel); 119 120 void perf_evlist__set_selected(struct perf_evlist *evlist, 121 struct perf_evsel *evsel); 122 perf_evlist__set_maps(struct perf_evlist * evlist,struct cpu_map * cpus,struct thread_map * threads)123 static inline void perf_evlist__set_maps(struct perf_evlist *evlist, 124 struct cpu_map *cpus, 125 struct thread_map *threads) 126 { 127 evlist->cpus = cpus; 128 evlist->threads = threads; 129 } 130 131 int perf_evlist__create_maps(struct perf_evlist *evlist, 132 struct perf_target *target); 133 void perf_evlist__delete_maps(struct perf_evlist *evlist); 134 int perf_evlist__apply_filters(struct perf_evlist *evlist); 135 136 void __perf_evlist__set_leader(struct list_head *list); 137 void perf_evlist__set_leader(struct perf_evlist *evlist); 138 139 u64 perf_evlist__read_format(struct perf_evlist *evlist); 140 u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist); 141 u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist); 142 bool perf_evlist__sample_id_all(struct perf_evlist *evlist); 143 u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist); 144 145 int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event, 146 struct perf_sample *sample); 147 148 bool perf_evlist__valid_sample_type(struct perf_evlist *evlist); 149 bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist); 150 bool perf_evlist__valid_read_format(struct perf_evlist *evlist); 151 152 void perf_evlist__splice_list_tail(struct perf_evlist *evlist, 153 struct list_head *list, 154 int nr_entries); 155 perf_evlist__first(struct perf_evlist * evlist)156 static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist) 157 { 158 return list_entry(evlist->entries.next, struct perf_evsel, node); 159 } 160 perf_evlist__last(struct perf_evlist * evlist)161 static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist) 162 { 163 return list_entry(evlist->entries.prev, struct perf_evsel, node); 164 } 165 166 size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp); 167 perf_mmap__read_head(struct perf_mmap * mm)168 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm) 169 { 170 struct perf_event_mmap_page *pc = mm->base; 171 int head = pc->data_head; 172 rmb(); 173 return head; 174 } 175 perf_mmap__write_tail(struct perf_mmap * md,unsigned long tail)176 static inline void perf_mmap__write_tail(struct perf_mmap *md, 177 unsigned long tail) 178 { 179 struct perf_event_mmap_page *pc = md->base; 180 181 /* 182 * ensure all reads are done before we write the tail out. 183 */ 184 /* mb(); */ 185 pc->data_tail = tail; 186 } 187 188 #endif /* __PERF_EVLIST_H */ 189