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