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 decomp_data {
24 struct decomp *decomp;
25 struct decomp *decomp_last;
26 struct zstd_data *zstd_decomp;
27 };
28
29 struct 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
54 struct 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
64 struct perf_tool;
65
66 struct perf_session *__perf_session__new(struct perf_data *data,
67 bool repipe, int repipe_fd,
68 struct perf_tool *tool);
69
perf_session__new(struct perf_data * data,struct perf_tool * tool)70 static 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
76 void perf_session__delete(struct perf_session *session);
77
78 void perf_event_header__bswap(struct perf_event_header *hdr);
79
80 int 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);
84 typedef int (*peek_events_cb_t)(struct perf_session *session,
85 union perf_event *event, u64 offset,
86 void *data);
87 int perf_session__peek_events(struct perf_session *session, u64 offset,
88 u64 size, peek_events_cb_t cb, void *data);
89
90 int perf_session__process_events(struct perf_session *session);
91
92 int perf_session__queue_event(struct perf_session *s, union perf_event *event,
93 u64 timestamp, u64 file_offset, const char *file_path);
94
95 void perf_tool__fill_defaults(struct perf_tool *tool);
96
97 int 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
103 bool perf_session__has_traces(struct perf_session *session, const char *msg);
104
105 void perf_event__attr_swap(struct perf_event_attr *attr);
106
107 int perf_session__create_kernel_maps(struct perf_session *session);
108
109 void perf_session__set_id_hdr_size(struct perf_session *session);
110
111 static inline
perf_session__find_machine(struct perf_session * session,pid_t pid)112 struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid)
113 {
114 return machines__find(&session->machines, pid);
115 }
116
117 static inline
perf_session__findnew_machine(struct perf_session * session,pid_t pid)118 struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid)
119 {
120 return machines__findnew(&session->machines, pid);
121 }
122
123 struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
124 int perf_session__register_idle_thread(struct perf_session *session);
125
126 size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
127
128 size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp);
129
130 size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
131 bool (fn)(struct dso *dso, int parm), int parm);
132
133 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp,
134 bool skip_empty);
135
136 struct evsel *perf_session__find_first_evtype(struct perf_session *session,
137 unsigned int type);
138
139 int perf_session__cpu_bitmap(struct perf_session *session,
140 const char *cpu_list, unsigned long *cpu_bitmap);
141
142 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
143
144 struct evsel_str_handler;
145
146 #define perf_session__set_tracepoints_handlers(session, array) \
147 __evlist__set_tracepoints_handlers(session->evlist, array, ARRAY_SIZE(array))
148
149 extern volatile int session_done;
150
151 #define session_done() READ_ONCE(session_done)
152
153 int perf_session__deliver_synth_event(struct perf_session *session,
154 union perf_event *event,
155 struct perf_sample *sample);
156
157 int perf_event__process_id_index(struct perf_session *session,
158 union perf_event *event);
159
160 int perf_event__process_finished_round(struct perf_tool *tool,
161 union perf_event *event,
162 struct ordered_events *oe);
163
164 #endif /* __PERF_SESSION_H */
165