Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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 struct trace_event tevent;
37 struct perf_record_time_conv time_conv;
38 bool repipe;
39 bool one_mmap;
40 void *one_mmap_addr;
41 u64 one_mmap_offset;
42 struct ordered_events ordered_events;
43 struct perf_data *data;
44 struct perf_tool *tool;
45 u64 bytes_transferred;
46 u64 bytes_compressed;
47 struct zstd_data zstd_data;
48 struct decomp_data decomp_data;
49 struct decomp_data *active_decomp;
50};
51
52struct decomp {
53 struct decomp *next;
54 u64 file_pos;
55 size_t mmap_len;
56 u64 head;
57 size_t size;
58 char data[];
59};
60
61struct perf_tool;
62
63struct perf_session *__perf_session__new(struct perf_data *data,
64 bool repipe, int repipe_fd,
65 struct perf_tool *tool);
66
67static inline struct perf_session *perf_session__new(struct perf_data *data,
68 struct perf_tool *tool)
69{
70 return __perf_session__new(data, false, -1, tool);
71}
72
73void perf_session__delete(struct perf_session *session);
74
75void perf_event_header__bswap(struct perf_event_header *hdr);
76
77int perf_session__peek_event(struct perf_session *session, off_t file_offset,
78 void *buf, size_t buf_sz,
79 union perf_event **event_ptr,
80 struct perf_sample *sample);
81typedef int (*peek_events_cb_t)(struct perf_session *session,
82 union perf_event *event, u64 offset,
83 void *data);
84int perf_session__peek_events(struct perf_session *session, u64 offset,
85 u64 size, peek_events_cb_t cb, void *data);
86
87int perf_session__process_events(struct perf_session *session);
88
89int perf_session__queue_event(struct perf_session *s, union perf_event *event,
90 u64 timestamp, u64 file_offset);
91
92void perf_tool__fill_defaults(struct perf_tool *tool);
93
94int perf_session__resolve_callchain(struct perf_session *session,
95 struct evsel *evsel,
96 struct thread *thread,
97 struct ip_callchain *chain,
98 struct symbol **parent);
99
100bool perf_session__has_traces(struct perf_session *session, const char *msg);
101
102void perf_event__attr_swap(struct perf_event_attr *attr);
103
104int perf_session__create_kernel_maps(struct perf_session *session);
105
106void perf_session__set_id_hdr_size(struct perf_session *session);
107
108static inline
109struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid)
110{
111 return machines__find(&session->machines, pid);
112}
113
114static inline
115struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid)
116{
117 return machines__findnew(&session->machines, pid);
118}
119
120struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
121int perf_session__register_idle_thread(struct perf_session *session);
122
123size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
124
125size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp);
126
127size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
128 bool (fn)(struct dso *dso, int parm), int parm);
129
130size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp,
131 bool skip_empty);
132
133struct evsel *perf_session__find_first_evtype(struct perf_session *session,
134 unsigned int type);
135
136int perf_session__cpu_bitmap(struct perf_session *session,
137 const char *cpu_list, unsigned long *cpu_bitmap);
138
139void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
140
141struct evsel_str_handler;
142
143#define perf_session__set_tracepoints_handlers(session, array) \
144 __evlist__set_tracepoints_handlers(session->evlist, array, ARRAY_SIZE(array))
145
146extern volatile int session_done;
147
148#define session_done() READ_ONCE(session_done)
149
150int perf_session__deliver_synth_event(struct perf_session *session,
151 union perf_event *event,
152 struct perf_sample *sample);
153
154int perf_event__process_id_index(struct perf_session *session,
155 union perf_event *event);
156
157#endif /* __PERF_SESSION_H */