perf evlist: Add want_signal parameter to perf_evlist__prepare_workload()
[linux-3.10.git] / 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         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(void);
53 void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
54                        struct thread_map *threads);
55 void perf_evlist__exit(struct perf_evlist *evlist);
56 void perf_evlist__delete(struct perf_evlist *evlist);
57
58 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
59 int perf_evlist__add_default(struct perf_evlist *evlist);
60 int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
61                                      struct perf_event_attr *attrs, size_t nr_attrs);
62
63 #define perf_evlist__add_default_attrs(evlist, array) \
64         __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
65
66 int perf_evlist__add_newtp(struct perf_evlist *evlist,
67                            const char *sys, const char *name, void *handler);
68
69 int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
70
71 struct perf_evsel *
72 perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
73
74 void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
75                          int cpu, int thread, u64 id);
76
77 void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
78
79 struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
80
81 union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx);
82
83 int perf_evlist__open(struct perf_evlist *evlist);
84
85 void perf_evlist__config(struct perf_evlist *evlist,
86                          struct perf_record_opts *opts);
87
88 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
89                                   struct perf_target *target,
90                                   const char *argv[], bool pipe_output,
91                                   bool want_signal);
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 */