aboutsummaryrefslogtreecommitdiff
path: root/tools/perf/util/session.h
blob: 170601e67d6b78086349ebd7810285978edd95f9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
#ifndef __PERF_SESSION_H
#define __PERF_SESSION_H

#include "hist.h"
#include "event.h"
#include "header.h"
#include "symbol.h"
#include "thread.h"
#include <linux/rbtree.h>
#include "../../../include/linux/perf_event.h"

struct sample_queue;
struct ip_callchain;
struct thread;

struct ordered_samples {
	u64			last_flush;
	u64			next_flush;
	u64			max_timestamp;
	struct list_head	samples;
	struct list_head	sample_cache;
	struct list_head	to_free;
	struct sample_queue	*sample_buffer;
	struct sample_queue	*last_sample;
	int			sample_buffer_idx;
};

struct perf_session {
	struct perf_header	header;
	unsigned long		size;
	unsigned long		mmap_window;
	struct rb_root		threads;
	struct list_head	dead_threads;
	struct thread		*last_match;
	struct machine		host_machine;
	struct rb_root		machines;
	struct perf_evlist	*evlist;
	/*
	 * FIXME: Need to split this up further, we need global
	 *	  stats + per event stats. 'perf diff' also needs
	 *	  to properly support multiple events in a single
	 *	  perf.data file.
	 */
	struct hists		hists;
	u64			sample_type;
	int			sample_size;
	int			fd;
	bool			fd_pipe;
	bool			repipe;
	bool			sample_id_all;
	u16			id_hdr_size;
	int			cwdlen;
	char			*cwd;
	struct ordered_samples	ordered_samples;
	struct callchain_cursor	callchain_cursor;
	char			filename[0];
};

struct perf_evsel;
struct perf_event_ops;

typedef int (*event_sample)(union perf_event *event, struct perf_sample *sample,
			    struct perf_evsel *evsel, struct perf_session *session);
typedef int (*event_op)(union perf_event *self, struct perf_sample *sample,
			struct perf_session *session);
typedef int (*event_synth_op)(union perf_event *self,
			      struct perf_session *session);
typedef int (*event_op2)(union perf_event *self, struct perf_session *session,
			 struct perf_event_ops *ops);

struct perf_event_ops {
	event_sample	sample;
	event_op	mmap,
			comm,
			fork,
			exit,
			lost,
			read,
			throttle,
			unthrottle;
	event_synth_op	attr,
			event_type,
			tracing_data,
			build_id;
	event_op2	finished_round;
	bool		ordered_samples;
	bool		ordering_requires_timestamps;
};

struct perf_session *perf_session__new(const char *filename, int mode,
				       bool force, bool repipe,
				       struct perf_event_ops *ops);
void perf_session__delete(struct perf_session *self);

void perf_event_header__bswap(struct perf_event_header *self);

int __perf_session__process_events(struct perf_session *self,
				   u64 data_offset, u64 data_size, u64 size,
				   struct perf_event_ops *ops);
int perf_session__process_events(struct perf_session *self,
				 struct perf_event_ops *event_ops);

int perf_session__resolve_callchain(struct perf_session *self,
				    struct thread *thread,
				    struct ip_callchain *chain,
				    struct symbol **parent);

bool perf_session__has_traces(struct perf_session *self, const char *msg);

int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
					     const char *symbol_name,
					     u64 addr);

void mem_bswap_64(void *src, int byte_size);
void perf_event__attr_swap(struct perf_event_attr *attr);

int perf_session__create_kernel_maps(struct perf_session *self);

void perf_session__update_sample_type(struct perf_session *self);
void perf_session__remove_thread(struct perf_session *self, struct thread *th);

static inline
struct machine *perf_session__find_host_machine(struct perf_session *self)
{
	return &self->host_machine;
}

static inline
struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
{
	if (pid == HOST_KERNEL_ID)
		return &self->host_machine;
	return machines__find(&self->machines, pid);
}

static inline
struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
{
	if (pid == HOST_KERNEL_ID)
		return &self->host_machine;
	return machines__findnew(&self->machines, pid);
}

static inline
void perf_session__process_machines(struct perf_session *self,
				    machine__process_t process)
{
	process(&self->host_machine, self);
	return machines__process(&self->machines, process, self);
}

size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);

size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
					  FILE *fp, bool with_hits);

size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);

static inline int perf_session__parse_sample(struct perf_session *session,
					     const union perf_event *event,
					     struct perf_sample *sample)
{
	return perf_event__parse_sample(event, session->sample_type,
					session->sample_size,
					session->sample_id_all, sample);
}

struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
					    unsigned int type);

void perf_session__print_ip(union perf_event *event,
				 struct perf_sample *sample,
				 struct perf_session *session,
				 int print_sym, int print_dso);

int perf_session__cpu_bitmap(struct perf_session *session,
			     const char *cpu_list, unsigned long *cpu_bitmap);

#endif /* __PERF_SESSION_H */