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 struct { 36 int cork_fd; 37 pid_t pid; 38 } workload; 39 bool overwrite; 40 struct perf_mmap *mmap; 41 struct pollfd *pollfd; 42 struct thread_map *threads; 43 struct cpu_map *cpus; 44 struct perf_evsel *selected; 45 }; 46 47 struct perf_evsel_str_handler { 48 const char *name; 49 void *handler; 50 }; 51 52 struct perf_evlist *perf_evlist__new(struct cpu_map *cpus, 53 struct thread_map *threads); 54 void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus, 55 struct thread_map *threads); 56 void perf_evlist__exit(struct perf_evlist *evlist); 57 void perf_evlist__delete(struct perf_evlist *evlist); 58 59 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry); 60 int perf_evlist__add_default(struct perf_evlist *evlist); 61 int __perf_evlist__add_default_attrs(struct perf_evlist *evlist, 62 struct perf_event_attr *attrs, size_t nr_attrs); 63 64 #define perf_evlist__add_default_attrs(evlist, array) \ 65 __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array)) 66 67 int perf_evlist__add_newtp(struct perf_evlist *evlist, 68 const char *sys, const char *name, void *handler); 69 70 int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter); 71 72 struct perf_evsel * 73 perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id); 74 75 void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel, 76 int cpu, int thread, u64 id); 77 78 void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd); 79 80 struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id); 81 82 union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx); 83 84 int perf_evlist__open(struct perf_evlist *evlist); 85 86 void perf_evlist__config(struct perf_evlist *evlist, 87 struct perf_record_opts *opts); 88 89 int perf_evlist__prepare_workload(struct perf_evlist *evlist, 90 struct perf_record_opts *opts, 91 const char *argv[]); 92 int perf_evlist__start_workload(struct perf_evlist *evlist); 93 94 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages, 95 bool overwrite); 96 void perf_evlist__munmap(struct perf_evlist *evlist); 97 98 void perf_evlist__disable(struct perf_evlist *evlist); 99 void perf_evlist__enable(struct perf_evlist *evlist); 100 101 void perf_evlist__set_selected(struct perf_evlist *evlist, 102 struct perf_evsel *evsel); 103 104 static inline void perf_evlist__set_maps(struct perf_evlist *evlist, 105 struct cpu_map *cpus, 106 struct thread_map *threads) 107 { 108 evlist->cpus = cpus; 109 evlist->threads = threads; 110 } 111 112 int perf_evlist__create_maps(struct perf_evlist *evlist, 113 struct perf_target *target); 114 void perf_evlist__delete_maps(struct perf_evlist *evlist); 115 int perf_evlist__apply_filters(struct perf_evlist *evlist); 116 117 void __perf_evlist__set_leader(struct list_head *list); 118 void perf_evlist__set_leader(struct perf_evlist *evlist); 119 120 u64 perf_evlist__sample_type(struct perf_evlist *evlist); 121 bool perf_evlist__sample_id_all(struct perf_evlist *evlist); 122 u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist); 123 124 int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event, 125 struct perf_sample *sample); 126 127 bool perf_evlist__valid_sample_type(struct perf_evlist *evlist); 128 bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist); 129 130 void perf_evlist__splice_list_tail(struct perf_evlist *evlist, 131 struct list_head *list, 132 int nr_entries); 133 134 static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist) 135 { 136 return list_entry(evlist->entries.next, struct perf_evsel, node); 137 } 138 139 static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist) 140 { 141 return list_entry(evlist->entries.prev, struct perf_evsel, node); 142 } 143 144 size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp); 145 146 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm) 147 { 148 struct perf_event_mmap_page *pc = mm->base; 149 int head = pc->data_head; 150 rmb(); 151 return head; 152 } 153 154 static inline void perf_mmap__write_tail(struct perf_mmap *md, 155 unsigned long tail) 156 { 157 struct perf_event_mmap_page *pc = md->base; 158 159 /* 160 * ensure all reads are done before we write the tail out. 161 */ 162 /* mb(); */ 163 pc->data_tail = tail; 164 } 165 166 #endif /* __PERF_EVLIST_H */ 167