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 list_head dead_threads;
30 struct thread *last_match;
31 struct machine host_machine;
32 struct rb_root machines;
33 struct rb_root hists_tree;
34 /*
35 * FIXME: should point to the first entry in hists_tree and
36 * be a hists instance. Right now its only 'report'
37 * that is using ->hists_tree while all the rest use
38 * ->hists.
39 */
40 struct hists hists;
41 u64 sample_type;
42 int fd;
43 bool fd_pipe;
44 bool repipe;
45 int cwdlen;
46 char *cwd;
47 struct ordered_samples ordered_samples;
48 char filename[0];
49};
50
51struct perf_event_ops;
52
53typedef int (*event_op)(event_t *self, struct perf_session *session);
54typedef int (*event_op2)(event_t *self, struct perf_session *session,
55 struct perf_event_ops *ops);
56
57struct perf_event_ops {
58 event_op sample,
59 mmap,
60 comm,
61 fork,
62 exit,
63 lost,
64 read,
65 throttle,
66 unthrottle,
67 attr,
68 event_type,
69 tracing_data,
70 build_id;
71 event_op2 finished_round;
72 bool ordered_samples;
73};
74
75struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe);
76void perf_session__delete(struct perf_session *self);
77
78void perf_event_header__bswap(struct perf_event_header *self);
79
80int __perf_session__process_events(struct perf_session *self,
81 u64 data_offset, u64 data_size, u64 size,
82 struct perf_event_ops *ops);
83int perf_session__process_events(struct perf_session *self,
84 struct perf_event_ops *event_ops);
85
86struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
87 struct thread *thread,
88 struct ip_callchain *chain,
89 struct symbol **parent);
90
91bool perf_session__has_traces(struct perf_session *self, const char *msg);
92
93int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
94 const char *symbol_name,
95 u64 addr);
96
97void mem_bswap_64(void *src, int byte_size);
98
99int perf_session__create_kernel_maps(struct perf_session *self);
100
101int do_read(int fd, void *buf, size_t size);
102void perf_session__update_sample_type(struct perf_session *self);
103void perf_session__remove_thread(struct perf_session *self, struct thread *th);
104
105static inline
106struct machine *perf_session__find_host_machine(struct perf_session *self)
107{
108 return &self->host_machine;
109}
110
111static inline
112struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
113{
114 if (pid == HOST_KERNEL_ID)
115 return &self->host_machine;
116 return machines__find(&self->machines, pid);
117}
118
119static inline
120struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
121{
122 if (pid == HOST_KERNEL_ID)
123 return &self->host_machine;
124 return machines__findnew(&self->machines, pid);
125}
126
127static inline
128void perf_session__process_machines(struct perf_session *self,
129 machine__process_t process)
130{
131 process(&self->host_machine, self);
132 return machines__process(&self->machines, process, self);
133}
134
135size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
136
137size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
138 FILE *fp, bool with_hits);
139
140static inline
141size_t perf_session__fprintf_nr_events(struct perf_session *self, FILE *fp)
142{
143 return hists__fprintf_nr_events(&self->hists, fp);
144}
145#endif /* __PERF_SESSION_H */