Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef __PERF_SESSION_H
2#define __PERF_SESSION_H
3
4#include "hist.h"
5#include "event.h"
6#include "header.h"
7#include "symbol.h"
8#include "thread.h"
9#include <linux/rbtree.h>
10#include "../../../include/linux/perf_event.h"
11
12struct sample_queue;
13struct ip_callchain;
14struct thread;
15
16struct ordered_samples {
17 u64 last_flush;
18 u64 next_flush;
19 u64 max_timestamp;
20 struct list_head samples_head;
21 struct sample_queue *last_inserted;
22};
23
24struct perf_session {
25 struct perf_header header;
26 unsigned long size;
27 unsigned long mmap_window;
28 struct rb_root threads;
29 struct thread *last_match;
30 struct machine host_machine;
31 struct rb_root machines;
32 struct rb_root hists_tree;
33 /*
34 * FIXME: should point to the first entry in hists_tree and
35 * be a hists instance. Right now its only 'report'
36 * that is using ->hists_tree while all the rest use
37 * ->hists.
38 */
39 struct hists hists;
40 u64 sample_type;
41 int fd;
42 bool fd_pipe;
43 bool repipe;
44 int cwdlen;
45 char *cwd;
46 struct ordered_samples ordered_samples;
47 char filename[0];
48};
49
50struct perf_event_ops;
51
52typedef int (*event_op)(event_t *self, struct perf_session *session);
53typedef int (*event_op2)(event_t *self, struct perf_session *session,
54 struct perf_event_ops *ops);
55
56struct perf_event_ops {
57 event_op sample,
58 mmap,
59 comm,
60 fork,
61 exit,
62 lost,
63 read,
64 throttle,
65 unthrottle,
66 attr,
67 event_type,
68 tracing_data,
69 build_id;
70 event_op2 finished_round;
71 bool ordered_samples;
72};
73
74struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe);
75void perf_session__delete(struct perf_session *self);
76
77void perf_event_header__bswap(struct perf_event_header *self);
78
79int __perf_session__process_events(struct perf_session *self,
80 u64 data_offset, u64 data_size, u64 size,
81 struct perf_event_ops *ops);
82int perf_session__process_events(struct perf_session *self,
83 struct perf_event_ops *event_ops);
84
85struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
86 struct thread *thread,
87 struct ip_callchain *chain,
88 struct symbol **parent);
89
90bool perf_session__has_traces(struct perf_session *self, const char *msg);
91
92int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
93 const char *symbol_name,
94 u64 addr);
95
96void mem_bswap_64(void *src, int byte_size);
97
98int perf_session__create_kernel_maps(struct perf_session *self);
99
100int do_read(int fd, void *buf, size_t size);
101void perf_session__update_sample_type(struct perf_session *self);
102
103static inline
104struct machine *perf_session__find_host_machine(struct perf_session *self)
105{
106 return &self->host_machine;
107}
108
109static inline
110struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
111{
112 if (pid == HOST_KERNEL_ID)
113 return &self->host_machine;
114 return machines__find(&self->machines, pid);
115}
116
117static inline
118struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
119{
120 if (pid == HOST_KERNEL_ID)
121 return &self->host_machine;
122 return machines__findnew(&self->machines, pid);
123}
124
125static inline
126void perf_session__process_machines(struct perf_session *self,
127 machine__process_t process)
128{
129 process(&self->host_machine, self);
130 return machines__process(&self->machines, process, self);
131}
132
133size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
134
135size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
136 FILE *fp, bool with_hits);
137
138static inline
139size_t perf_session__fprintf_nr_events(struct perf_session *self, FILE *fp)
140{
141 return hists__fprintf_nr_events(&self->hists, fp);
142}
143#endif /* __PERF_SESSION_H */