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;
21 struct list_head sample_cache;
22 struct list_head to_free;
23 struct sample_queue *sample_buffer;
24 struct sample_queue *last_sample;
25 int sample_buffer_idx;
26};
27
28struct perf_session {
29 struct perf_header header;
30 unsigned long size;
31 unsigned long mmap_window;
32 struct rb_root threads;
33 struct list_head dead_threads;
34 struct thread *last_match;
35 struct machine host_machine;
36 struct rb_root machines;
37 struct rb_root hists_tree;
38 /*
39 * FIXME: should point to the first entry in hists_tree and
40 * be a hists instance. Right now its only 'report'
41 * that is using ->hists_tree while all the rest use
42 * ->hists.
43 */
44 struct hists hists;
45 u64 sample_type;
46 int fd;
47 bool fd_pipe;
48 bool repipe;
49 bool sample_id_all;
50 u16 id_hdr_size;
51 int cwdlen;
52 char *cwd;
53 struct ordered_samples ordered_samples;
54 char filename[0];
55};
56
57struct perf_event_ops;
58
59typedef int (*event_op)(event_t *self, struct sample_data *sample,
60 struct perf_session *session);
61typedef int (*event_synth_op)(event_t *self, struct perf_session *session);
62typedef int (*event_op2)(event_t *self, struct perf_session *session,
63 struct perf_event_ops *ops);
64
65struct perf_event_ops {
66 event_op sample,
67 mmap,
68 comm,
69 fork,
70 exit,
71 lost,
72 read,
73 throttle,
74 unthrottle;
75 event_synth_op attr,
76 event_type,
77 tracing_data,
78 build_id;
79 event_op2 finished_round;
80 bool ordered_samples;
81 bool ordering_requires_timestamps;
82};
83
84struct perf_session *perf_session__new(const char *filename, int mode,
85 bool force, bool repipe,
86 struct perf_event_ops *ops);
87void perf_session__delete(struct perf_session *self);
88
89void perf_event_header__bswap(struct perf_event_header *self);
90
91int __perf_session__process_events(struct perf_session *self,
92 u64 data_offset, u64 data_size, u64 size,
93 struct perf_event_ops *ops);
94int perf_session__process_events(struct perf_session *self,
95 struct perf_event_ops *event_ops);
96
97struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
98 struct thread *thread,
99 struct ip_callchain *chain,
100 struct symbol **parent);
101
102bool perf_session__has_traces(struct perf_session *self, const char *msg);
103
104int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
105 const char *symbol_name,
106 u64 addr);
107
108void mem_bswap_64(void *src, int byte_size);
109
110int perf_session__create_kernel_maps(struct perf_session *self);
111
112void perf_session__update_sample_type(struct perf_session *self);
113void perf_session__set_sample_id_all(struct perf_session *session, bool value);
114void perf_session__set_sample_type(struct perf_session *session, u64 type);
115void perf_session__remove_thread(struct perf_session *self, struct thread *th);
116
117static inline
118struct machine *perf_session__find_host_machine(struct perf_session *self)
119{
120 return &self->host_machine;
121}
122
123static inline
124struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
125{
126 if (pid == HOST_KERNEL_ID)
127 return &self->host_machine;
128 return machines__find(&self->machines, pid);
129}
130
131static inline
132struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
133{
134 if (pid == HOST_KERNEL_ID)
135 return &self->host_machine;
136 return machines__findnew(&self->machines, pid);
137}
138
139static inline
140void perf_session__process_machines(struct perf_session *self,
141 machine__process_t process)
142{
143 process(&self->host_machine, self);
144 return machines__process(&self->machines, process, self);
145}
146
147size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
148
149size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
150 FILE *fp, bool with_hits);
151
152static inline
153size_t perf_session__fprintf_nr_events(struct perf_session *self, FILE *fp)
154{
155 return hists__fprintf_nr_events(&self->hists, fp);
156}
157#endif /* __PERF_SESSION_H */