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