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 */ 187