xref: /openbmc/linux/tools/perf/util/trace-event.h (revision e2f1cf25)
1 #ifndef _PERF_UTIL_TRACE_EVENT_H
2 #define _PERF_UTIL_TRACE_EVENT_H
3 
4 #include <traceevent/event-parse.h>
5 #include "parse-events.h"
6 
7 struct machine;
8 struct perf_sample;
9 union perf_event;
10 struct perf_tool;
11 struct thread;
12 struct plugin_list;
13 
14 struct trace_event {
15 	struct pevent		*pevent;
16 	struct plugin_list	*plugin_list;
17 };
18 
19 int trace_event__init(struct trace_event *t);
20 void trace_event__cleanup(struct trace_event *t);
21 struct event_format*
22 trace_event__tp_format(const char *sys, const char *name);
23 
24 int bigendian(void);
25 
26 void event_format__fprintf(struct event_format *event,
27 			   int cpu, void *data, int size, FILE *fp);
28 
29 void event_format__print(struct event_format *event,
30 			 int cpu, void *data, int size);
31 
32 int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size);
33 int parse_event_file(struct pevent *pevent,
34 		     char *buf, unsigned long size, char *sys);
35 
36 unsigned long long
37 raw_field_value(struct event_format *event, const char *name, void *data);
38 
39 void parse_proc_kallsyms(struct pevent *pevent, char *file, unsigned int size);
40 void parse_ftrace_printk(struct pevent *pevent, char *file, unsigned int size);
41 
42 ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);
43 
44 struct event_format *trace_find_next_event(struct pevent *pevent,
45 					   struct event_format *event);
46 unsigned long long read_size(struct event_format *event, void *ptr, int size);
47 unsigned long long eval_flag(const char *flag);
48 
49 int read_tracing_data(int fd, struct list_head *pattrs);
50 
51 struct tracing_data {
52 	/* size is only valid if temp is 'true' */
53 	ssize_t size;
54 	bool temp;
55 	char temp_file[50];
56 };
57 
58 struct tracing_data *tracing_data_get(struct list_head *pattrs,
59 				      int fd, bool temp);
60 int tracing_data_put(struct tracing_data *tdata);
61 
62 
63 struct addr_location;
64 
65 struct perf_session;
66 
67 struct scripting_ops {
68 	const char *name;
69 	int (*start_script) (const char *script, int argc, const char **argv);
70 	int (*flush_script) (void);
71 	int (*stop_script) (void);
72 	void (*process_event) (union perf_event *event,
73 			       struct perf_sample *sample,
74 			       struct perf_evsel *evsel,
75 			       struct addr_location *al);
76 	int (*generate_script) (struct pevent *pevent, const char *outfile);
77 };
78 
79 int script_spec_register(const char *spec, struct scripting_ops *ops);
80 
81 void setup_perl_scripting(void);
82 void setup_python_scripting(void);
83 
84 struct scripting_context {
85 	struct pevent *pevent;
86 	void *event_data;
87 };
88 
89 int common_pc(struct scripting_context *context);
90 int common_flags(struct scripting_context *context);
91 int common_lock_depth(struct scripting_context *context);
92 
93 #endif /* _PERF_UTIL_TRACE_EVENT_H */
94