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