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 unsigned int nr_samples;
27};
28
29struct perf_session {
30 struct perf_header header;
31 unsigned long size;
32 unsigned long mmap_window;
33 struct rb_root threads;
34 struct list_head dead_threads;
35 struct thread *last_match;
36 struct machine host_machine;
37 struct rb_root machines;
38 struct perf_evlist *evlist;
39 /*
40 * FIXME: Need to split this up further, we need global
41 * stats + per event stats. 'perf diff' also needs
42 * to properly support multiple events in a single
43 * perf.data file.
44 */
45 struct hists hists;
46 u64 sample_type;
47 int sample_size;
48 int fd;
49 bool fd_pipe;
50 bool repipe;
51 bool sample_id_all;
52 u16 id_hdr_size;
53 int cwdlen;
54 char *cwd;
55 struct ordered_samples ordered_samples;
56 struct callchain_cursor callchain_cursor;
57 char filename[0];
58};
59
60struct perf_evsel;
61struct perf_event_ops;
62
63typedef int (*event_sample)(union perf_event *event, struct perf_sample *sample,
64 struct perf_evsel *evsel, struct perf_session *session);
65typedef int (*event_op)(union perf_event *self, struct perf_sample *sample,
66 struct perf_session *session);
67typedef int (*event_synth_op)(union perf_event *self,
68 struct perf_session *session);
69typedef int (*event_op2)(union perf_event *self, struct perf_session *session,
70 struct perf_event_ops *ops);
71
72struct perf_event_ops {
73 event_sample sample;
74 event_op mmap,
75 comm,
76 fork,
77 exit,
78 lost,
79 read,
80 throttle,
81 unthrottle;
82 event_synth_op attr,
83 event_type,
84 tracing_data,
85 build_id;
86 event_op2 finished_round;
87 bool ordered_samples;
88 bool ordering_requires_timestamps;
89};
90
91struct perf_session *perf_session__new(const char *filename, int mode,
92 bool force, bool repipe,
93 struct perf_event_ops *ops);
94void perf_session__delete(struct perf_session *self);
95
96void perf_event_header__bswap(struct perf_event_header *self);
97
98int __perf_session__process_events(struct perf_session *self,
99 u64 data_offset, u64 data_size, u64 size,
100 struct perf_event_ops *ops);
101int perf_session__process_events(struct perf_session *self,
102 struct perf_event_ops *event_ops);
103
104int perf_session__resolve_callchain(struct perf_session *self,
105 struct thread *thread,
106 struct ip_callchain *chain,
107 struct symbol **parent);
108
109bool perf_session__has_traces(struct perf_session *self, const char *msg);
110
111int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
112 const char *symbol_name,
113 u64 addr);
114
115void mem_bswap_64(void *src, int byte_size);
116void perf_event__attr_swap(struct perf_event_attr *attr);
117
118int perf_session__create_kernel_maps(struct perf_session *self);
119
120void perf_session__update_sample_type(struct perf_session *self);
121void perf_session__remove_thread(struct perf_session *self, struct thread *th);
122
123static inline
124struct machine *perf_session__find_host_machine(struct perf_session *self)
125{
126 return &self->host_machine;
127}
128
129static inline
130struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
131{
132 if (pid == HOST_KERNEL_ID)
133 return &self->host_machine;
134 return machines__find(&self->machines, pid);
135}
136
137static inline
138struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
139{
140 if (pid == HOST_KERNEL_ID)
141 return &self->host_machine;
142 return machines__findnew(&self->machines, pid);
143}
144
145static inline
146void perf_session__process_machines(struct perf_session *self,
147 machine__process_t process)
148{
149 process(&self->host_machine, self);
150 return machines__process(&self->machines, process, self);
151}
152
153size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
154
155size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
156 FILE *fp, bool with_hits);
157
158size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
159
160static inline int perf_session__parse_sample(struct perf_session *session,
161 const union perf_event *event,
162 struct perf_sample *sample)
163{
164 return perf_event__parse_sample(event, session->sample_type,
165 session->sample_size,
166 session->sample_id_all, sample,
167 session->header.needs_swap);
168}
169
170struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
171 unsigned int type);
172
173void perf_session__print_ip(union perf_event *event,
174 struct perf_sample *sample,
175 struct perf_session *session,
176 int print_sym, int print_dso);
177
178int perf_session__cpu_bitmap(struct perf_session *session,
179 const char *cpu_list, unsigned long *cpu_bitmap);
180
181void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
182#endif /* __PERF_SESSION_H */