xref: /openbmc/linux/tools/perf/util/session.h (revision d599db3f)
1 #ifndef __PERF_SESSION_H
2 #define __PERF_SESSION_H
3 
4 #include "event.h"
5 #include "header.h"
6 #include "thread.h"
7 #include <linux/rbtree.h>
8 #include "../../../include/linux/perf_event.h"
9 
10 struct ip_callchain;
11 struct thread;
12 struct symbol;
13 
14 struct perf_session {
15 	struct perf_header	header;
16 	unsigned long		size;
17 	unsigned long		mmap_window;
18 	struct map_groups	kmaps;
19 	struct rb_root		threads;
20 	struct thread		*last_match;
21 	struct events_stats	events_stats;
22 	unsigned long		event_total[PERF_RECORD_MAX];
23 	struct rb_root		hists;
24 	u64			sample_type;
25 	int			fd;
26 	int			cwdlen;
27 	char			*cwd;
28 	char filename[0];
29 };
30 
31 typedef int (*event_op)(event_t *self, struct perf_session *session);
32 
33 struct perf_event_ops {
34 	event_op	process_sample_event;
35 	event_op	process_mmap_event;
36 	event_op	process_comm_event;
37 	event_op	process_fork_event;
38 	event_op	process_exit_event;
39 	event_op	process_lost_event;
40 	event_op	process_read_event;
41 	event_op	process_throttle_event;
42 	event_op	process_unthrottle_event;
43 	int		(*sample_type_check)(struct perf_session *session);
44 	unsigned long	total_unknown;
45 	bool		full_paths;
46 };
47 
48 struct perf_session *perf_session__new(const char *filename, int mode, bool force);
49 void perf_session__delete(struct perf_session *self);
50 
51 int perf_session__process_events(struct perf_session *self,
52 				 struct perf_event_ops *event_ops);
53 
54 struct symbol **perf_session__resolve_callchain(struct perf_session *self,
55 						struct thread *thread,
56 						struct ip_callchain *chain,
57 						struct symbol **parent);
58 
59 int perf_header__read_build_ids(int input, u64 offset, u64 file_size);
60 
61 #endif /* __PERF_SESSION_H */
62