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
12 struct sample_queue;
13 struct ip_callchain;
14 struct thread;
15
16 struct 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
28 struct 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 fd;
47 bool fd_pipe;
48 bool repipe;
49 bool sample_id_all;
50 u16 id_hdr_size;
51 int cwdlen;
52 char *cwd;
53 struct ordered_samples ordered_samples;
54 struct callchain_cursor callchain_cursor;
55 char filename[0];
56 };
57
58 struct perf_evsel;
59 struct perf_event_ops;
60
61 typedef int (*event_sample)(union perf_event *event, struct perf_sample *sample,
62 struct perf_evsel *evsel, struct perf_session *session);
63 typedef int (*event_op)(union perf_event *self, struct perf_sample *sample,
64 struct perf_session *session);
65 typedef int (*event_synth_op)(union perf_event *self,
66 struct perf_session *session);
67 typedef int (*event_op2)(union perf_event *self, struct perf_session *session,
68 struct perf_event_ops *ops);
69
70 struct perf_event_ops {
71 event_sample sample;
72 event_op mmap,
73 comm,
74 fork,
75 exit,
76 lost,
77 read,
78 throttle,
79 unthrottle;
80 event_synth_op attr,
81 event_type,
82 tracing_data,
83 build_id;
84 event_op2 finished_round;
85 bool ordered_samples;
86 bool ordering_requires_timestamps;
87 };
88
89 struct perf_session *perf_session__new(const char *filename, int mode,
90 bool force, bool repipe,
91 struct perf_event_ops *ops);
92 void perf_session__delete(struct perf_session *self);
93
94 void perf_event_header__bswap(struct perf_event_header *self);
95
96 int __perf_session__process_events(struct perf_session *self,
97 u64 data_offset, u64 data_size, u64 size,
98 struct perf_event_ops *ops);
99 int perf_session__process_events(struct perf_session *self,
100 struct perf_event_ops *event_ops);
101
102 int perf_session__resolve_callchain(struct perf_session *self,
103 struct thread *thread,
104 struct ip_callchain *chain,
105 struct symbol **parent);
106
107 bool perf_session__has_traces(struct perf_session *self, const char *msg);
108
109 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
110 const char *symbol_name,
111 u64 addr);
112
113 void mem_bswap_64(void *src, int byte_size);
114
115 int perf_session__create_kernel_maps(struct perf_session *self);
116
117 void perf_session__update_sample_type(struct perf_session *self);
118 void perf_session__remove_thread(struct perf_session *self, struct thread *th);
119
120 static inline
perf_session__find_host_machine(struct perf_session * self)121 struct machine *perf_session__find_host_machine(struct perf_session *self)
122 {
123 return &self->host_machine;
124 }
125
126 static inline
perf_session__find_machine(struct perf_session * self,pid_t pid)127 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
128 {
129 if (pid == HOST_KERNEL_ID)
130 return &self->host_machine;
131 return machines__find(&self->machines, pid);
132 }
133
134 static inline
perf_session__findnew_machine(struct perf_session * self,pid_t pid)135 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
136 {
137 if (pid == HOST_KERNEL_ID)
138 return &self->host_machine;
139 return machines__findnew(&self->machines, pid);
140 }
141
142 static inline
perf_session__process_machines(struct perf_session * self,machine__process_t process)143 void perf_session__process_machines(struct perf_session *self,
144 machine__process_t process)
145 {
146 process(&self->host_machine, self);
147 return machines__process(&self->machines, process, self);
148 }
149
150 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
151
152 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self,
153 FILE *fp, bool with_hits);
154
155 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
156
perf_session__parse_sample(struct perf_session * session,const union perf_event * event,struct perf_sample * sample)157 static inline int perf_session__parse_sample(struct perf_session *session,
158 const union perf_event *event,
159 struct perf_sample *sample)
160 {
161 return perf_event__parse_sample(event, session->sample_type,
162 session->sample_id_all, sample);
163 }
164
165 void perf_session__print_symbols(union perf_event *event,
166 struct perf_sample *sample,
167 struct perf_session *session);
168
169 #endif /* __PERF_SESSION_H */
170