/tools/perf/util/session.h

 1#ifndef __PERF_SESSION_H
 2#define __PERF_SESSION_H
 3
 4#include "event.h"
 5#include "header.h"
 6#include "symbol.h"
 7#include "thread.h"
 8#include <linux/rbtree.h>
 9#include "../../../include/linux/perf_event.h"
10
11struct ip_callchain;
12struct thread;
13
14struct 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 map		*vmlinux_maps[MAP__NR_TYPES];
22	struct events_stats	events_stats;
23	struct rb_root		stats_by_id;
24	unsigned long		event_total[PERF_RECORD_MAX];
25	unsigned long		unknown_events;
26	struct rb_root		hists;
27	u64			sample_type;
28	struct ref_reloc_sym	ref_reloc_sym;
29	int			fd;
30	int			cwdlen;
31	char			*cwd;
32	char filename[0];
33};
34
35typedef int (*event_op)(event_t *self, struct perf_session *session);
36
37struct perf_event_ops {
38	event_op sample,
39		 mmap,
40		 comm,
41		 fork,
42		 exit,
43		 lost,
44		 read,
45		 throttle,
46		 unthrottle;
47};
48
49struct perf_session *perf_session__new(const char *filename, int mode, bool force);
50void perf_session__delete(struct perf_session *self);
51
52void perf_event_header__bswap(struct perf_event_header *self);
53
54int __perf_session__process_events(struct perf_session *self,
55				   u64 data_offset, u64 data_size, u64 size,
56				   struct perf_event_ops *ops);
57int perf_session__process_events(struct perf_session *self,
58				 struct perf_event_ops *event_ops);
59
60struct symbol **perf_session__resolve_callchain(struct perf_session *self,
61						struct thread *thread,
62						struct ip_callchain *chain,
63						struct symbol **parent);
64
65bool perf_session__has_traces(struct perf_session *self, const char *msg);
66
67int perf_header__read_build_ids(struct perf_header *self, int input,
68				u64 offset, u64 file_size);
69
70int perf_session__set_kallsyms_ref_reloc_sym(struct perf_session *self,
71					     const char *symbol_name,
72					     u64 addr);
73
74void mem_bswap_64(void *src, int byte_size);
75
76static inline int __perf_session__create_kernel_maps(struct perf_session *self,
77						struct dso *kernel)
78{
79	return __map_groups__create_kernel_maps(&self->kmaps,
80						self->vmlinux_maps, kernel);
81}
82
83static inline struct map *
84	perf_session__new_module_map(struct perf_session *self,
85				     u64 start, const char *filename)
86{
87	return map_groups__new_module(&self->kmaps, start, filename);
88}
89#endif /* __PERF_SESSION_H */