xref: /openbmc/linux/tools/perf/util/session.h (revision 0ac129e0)
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 "machine.h"
8 #include "symbol.h"
9 #include "thread.h"
10 #include <linux/rbtree.h>
11 #include <linux/perf_event.h>
12 
13 struct sample_queue;
14 struct ip_callchain;
15 struct thread;
16 
17 struct ordered_samples {
18 	u64			last_flush;
19 	u64			next_flush;
20 	u64			max_timestamp;
21 	struct list_head	samples;
22 	struct list_head	sample_cache;
23 	struct list_head	to_free;
24 	struct sample_queue	*sample_buffer;
25 	struct sample_queue	*last_sample;
26 	int			sample_buffer_idx;
27 	unsigned int		nr_samples;
28 };
29 
30 struct perf_session {
31 	struct perf_header	header;
32 	unsigned long		size;
33 	struct machines		machines;
34 	struct perf_evlist	*evlist;
35 	struct pevent		*pevent;
36 	struct events_stats	stats;
37 	int			fd;
38 	bool			fd_pipe;
39 	bool			repipe;
40 	char			*cwd;
41 	struct ordered_samples	ordered_samples;
42 	char			filename[1];
43 };
44 
45 struct perf_tool;
46 
47 struct perf_session *perf_session__new(const char *filename, int mode,
48 				       bool force, bool repipe,
49 				       struct perf_tool *tool);
50 void perf_session__delete(struct perf_session *session);
51 
52 void perf_event_header__bswap(struct perf_event_header *self);
53 
54 int __perf_session__process_events(struct perf_session *self,
55 				   u64 data_offset, u64 data_size, u64 size,
56 				   struct perf_tool *tool);
57 int perf_session__process_events(struct perf_session *self,
58 				 struct perf_tool *tool);
59 
60 int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
61 				    struct thread *thread,
62 				    struct ip_callchain *chain,
63 				    struct symbol **parent);
64 
65 bool perf_session__has_traces(struct perf_session *self, const char *msg);
66 
67 void mem_bswap_64(void *src, int byte_size);
68 void mem_bswap_32(void *src, int byte_size);
69 void perf_event__attr_swap(struct perf_event_attr *attr);
70 
71 int perf_session__create_kernel_maps(struct perf_session *self);
72 
73 void perf_session__set_id_hdr_size(struct perf_session *session);
74 
75 static inline
76 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
77 {
78 	return machines__find(&self->machines, pid);
79 }
80 
81 static inline
82 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
83 {
84 	return machines__findnew(&self->machines, pid);
85 }
86 
87 struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
88 size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
89 
90 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
91 
92 size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
93 					  bool (fn)(struct dso *dso, int parm), int parm);
94 
95 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp);
96 
97 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
98 					    unsigned int type);
99 
100 void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event,
101 			  struct perf_sample *sample, struct machine *machine,
102 			  int print_sym, int print_dso, int print_symoffset);
103 
104 int perf_session__cpu_bitmap(struct perf_session *session,
105 			     const char *cpu_list, unsigned long *cpu_bitmap);
106 
107 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
108 
109 struct perf_evsel_str_handler;
110 
111 int __perf_session__set_tracepoints_handlers(struct perf_session *session,
112 					     const struct perf_evsel_str_handler *assocs,
113 					     size_t nr_assocs);
114 
115 #define perf_session__set_tracepoints_handlers(session, array) \
116 	__perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
117 #endif /* __PERF_SESSION_H */
118