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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 */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PERF_SESSION_H
3#define __PERF_SESSION_H
4
5#include "trace-event.h"
6#include "event.h"
7#include "header.h"
8#include "machine.h"
9#include "data.h"
10#include "ordered-events.h"
11#include "util/compress.h"
12#include <linux/kernel.h>
13#include <linux/rbtree.h>
14#include <linux/perf_event.h>
15
16struct ip_callchain;
17struct symbol;
18struct thread;
19
20struct auxtrace;
21struct itrace_synth_opts;
22
23struct decomp_data {
24 struct decomp *decomp;
25 struct decomp *decomp_last;
26 struct zstd_data *zstd_decomp;
27};
28
29struct perf_session {
30 struct perf_header header;
31 struct machines machines;
32 struct evlist *evlist;
33 struct auxtrace *auxtrace;
34 struct itrace_synth_opts *itrace_synth_opts;
35 struct list_head auxtrace_index;
36#ifdef HAVE_LIBTRACEEVENT
37 struct trace_event tevent;
38#endif
39 struct perf_record_time_conv time_conv;
40 bool repipe;
41 bool one_mmap;
42 void *one_mmap_addr;
43 u64 one_mmap_offset;
44 struct ordered_events ordered_events;
45 struct perf_data *data;
46 struct perf_tool *tool;
47 u64 bytes_transferred;
48 u64 bytes_compressed;
49 struct zstd_data zstd_data;
50 struct decomp_data decomp_data;
51 struct decomp_data *active_decomp;
52};
53
54struct decomp {
55 struct decomp *next;
56 u64 file_pos;
57 const char *file_path;
58 size_t mmap_len;
59 u64 head;
60 size_t size;
61 char data[];
62};
63
64struct perf_tool;
65
66struct perf_session *__perf_session__new(struct perf_data *data,
67 bool repipe, int repipe_fd,
68 struct perf_tool *tool);
69
70static inline struct perf_session *perf_session__new(struct perf_data *data,
71 struct perf_tool *tool)
72{
73 return __perf_session__new(data, false, -1, tool);
74}
75
76void perf_session__delete(struct perf_session *session);
77
78void perf_event_header__bswap(struct perf_event_header *hdr);
79
80int perf_session__peek_event(struct perf_session *session, off_t file_offset,
81 void *buf, size_t buf_sz,
82 union perf_event **event_ptr,
83 struct perf_sample *sample);
84typedef int (*peek_events_cb_t)(struct perf_session *session,
85 union perf_event *event, u64 offset,
86 void *data);
87int perf_session__peek_events(struct perf_session *session, u64 offset,
88 u64 size, peek_events_cb_t cb, void *data);
89
90int perf_session__process_events(struct perf_session *session);
91
92int perf_session__queue_event(struct perf_session *s, union perf_event *event,
93 u64 timestamp, u64 file_offset, const char *file_path);
94
95void perf_tool__fill_defaults(struct perf_tool *tool);
96
97int perf_session__resolve_callchain(struct perf_session *session,
98 struct evsel *evsel,
99 struct thread *thread,
100 struct ip_callchain *chain,
101 struct symbol **parent);
102
103bool perf_session__has_traces(struct perf_session *session, const char *msg);
104
105void perf_event__attr_swap(struct perf_event_attr *attr);
106
107int perf_session__create_kernel_maps(struct perf_session *session);
108
109void perf_session__set_id_hdr_size(struct perf_session *session);
110
111static inline
112struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid)
113{
114 return machines__find(&session->machines, pid);
115}
116
117static inline
118struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid)
119{
120 return machines__findnew(&session->machines, pid);
121}
122
123struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
124int perf_session__register_idle_thread(struct perf_session *session);
125
126size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
127
128size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp);
129
130size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
131 bool (fn)(struct dso *dso, int parm), int parm);
132
133size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp,
134 bool skip_empty);
135
136void perf_session__dump_kmaps(struct perf_session *session);
137
138struct evsel *perf_session__find_first_evtype(struct perf_session *session,
139 unsigned int type);
140
141int perf_session__cpu_bitmap(struct perf_session *session,
142 const char *cpu_list, unsigned long *cpu_bitmap);
143
144void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
145
146struct evsel_str_handler;
147
148#define perf_session__set_tracepoints_handlers(session, array) \
149 __evlist__set_tracepoints_handlers(session->evlist, array, ARRAY_SIZE(array))
150
151extern volatile int session_done;
152
153#define session_done() READ_ONCE(session_done)
154
155int perf_session__deliver_synth_event(struct perf_session *session,
156 union perf_event *event,
157 struct perf_sample *sample);
158
159int perf_event__process_id_index(struct perf_session *session,
160 union perf_event *event);
161
162int perf_event__process_finished_round(struct perf_tool *tool,
163 union perf_event *event,
164 struct ordered_events *oe);
165
166#endif /* __PERF_SESSION_H */