Root/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 */
90

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