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/* ANDROID_CHANGE_BEGIN */
10#if 0
11#include <linux/rbtree.h>
12#include "../../../include/linux/perf_event.h"
13#else
14#include "include/linux/rbtree.h"
15#include "include/linux/added/perf_event.h"
16#endif
17/* ANDROID_CHANGE_END */
18
19struct sample_queue;
20struct ip_callchain;
21struct thread;
22
23struct ordered_samples {
24	u64			last_flush;
25	u64			next_flush;
26	u64			max_timestamp;
27	struct list_head	samples;
28	struct list_head	sample_cache;
29	struct list_head	to_free;
30	struct sample_queue	*sample_buffer;
31	struct sample_queue	*last_sample;
32	int			sample_buffer_idx;
33};
34
35struct perf_session {
36	struct perf_header	header;
37	unsigned long		size;
38	unsigned long		mmap_window;
39	struct rb_root		threads;
40	struct list_head	dead_threads;
41	struct thread		*last_match;
42	struct machine		host_machine;
43	struct rb_root		machines;
44	struct perf_evlist	*evlist;
45	/*
46	 * FIXME: Need to split this up further, we need global
47	 *	  stats + per event stats. 'perf diff' also needs
48	 *	  to properly support multiple events in a single
49	 *	  perf.data file.
50	 */
51	struct hists		hists;
52	u64			sample_type;
53	int			sample_size;
54	int			fd;
55	bool			fd_pipe;
56	bool			repipe;
57	bool			sample_id_all;
58	u16			id_hdr_size;
59	int			cwdlen;
60	char			*cwd;
61	struct ordered_samples	ordered_samples;
62	struct callchain_cursor	callchain_cursor;
63	char			filename[0];
64};
65
66struct perf_evsel;
67struct perf_event_ops;
68
69typedef int (*event_sample)(union perf_event *event, struct perf_sample *sample,
70			    struct perf_evsel *evsel, struct perf_session *session);
71typedef int (*event_op)(union perf_event *self, struct perf_sample *sample,
72			struct perf_session *session);
73typedef int (*event_synth_op)(union perf_event *self,
74			      struct perf_session *session);
75typedef int (*event_op2)(union perf_event *self, struct perf_session *session,
76			 struct perf_event_ops *ops);
77
78struct perf_event_ops {
79	event_sample	sample;
80	event_op	mmap,
81			comm,
82			fork,
83			exit,
84			lost,
85			read,
86			throttle,
87			unthrottle;
88	event_synth_op	attr,
89			event_type,
90			tracing_data,
91			build_id;
92	event_op2	finished_round;
93	bool		ordered_samples;
94	bool		ordering_requires_timestamps;
95};
96
97struct perf_session *perf_session__new(const char *filename, int mode,
98				       bool force, bool repipe,
99				       struct perf_event_ops *ops);
100void perf_session__delete(struct perf_session *self);
101
102void perf_event_header__bswap(struct perf_event_header *self);
103
104int __perf_session__process_events(struct perf_session *self,
105				   u64 data_offset, u64 data_size, u64 size,
106				   struct perf_event_ops *ops);
107int perf_session__process_events(struct perf_session *self,
108				 struct perf_event_ops *event_ops);
109
110int perf_session__resolve_callchain(struct perf_session *self,
111				    struct thread *thread,
112				    struct ip_callchain *chain,
113				    struct symbol **parent);
114
115bool perf_session__has_traces(struct perf_session *self, const char *msg);
116
117int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
118					     const char *symbol_name,
119					     u64 addr);
120
121void mem_bswap_64(void *src, int byte_size);
122void perf_event__attr_swap(struct perf_event_attr *attr);
123
124int perf_session__create_kernel_maps(struct perf_session *self);
125
126void perf_session__update_sample_type(struct perf_session *self);
127void perf_session__remove_thread(struct perf_session *self, struct thread *th);
128
129static inline
130struct machine *perf_session__find_host_machine(struct perf_session *self)
131{
132	return &self->host_machine;
133}
134
135static inline
136struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
137{
138	if (pid == HOST_KERNEL_ID)
139		return &self->host_machine;
140	return machines__find(&self->machines, pid);
141}
142
143static inline
144struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
145{
146	if (pid == HOST_KERNEL_ID)
147		return &self->host_machine;
148	return machines__findnew(&self->machines, pid);
149}
150
151static inline
152void perf_session__process_machines(struct perf_session *self,
153				    machine__process_t process)
154{
155	process(&self->host_machine, self);
156	return machines__process(&self->machines, process, self);
157}
158
159size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
160
161size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
162					  FILE *fp, bool with_hits);
163
164size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
165
166static inline int perf_session__parse_sample(struct perf_session *session,
167					     const union perf_event *event,
168					     struct perf_sample *sample)
169{
170	return perf_event__parse_sample(event, session->sample_type,
171					session->sample_size,
172					session->sample_id_all, sample);
173}
174
175struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
176					    unsigned int type);
177
178void perf_session__print_symbols(union perf_event *event,
179				 struct perf_sample *sample,
180				 struct perf_session *session);
181
182#endif /* __PERF_SESSION_H */
183