xref: /openbmc/linux/tools/perf/util/trace-event.h (revision 8d08a4c1)
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 int trace_event__register_resolver(struct machine *machine,
22 				   pevent_func_resolver_t *func);
23 struct event_format*
24 trace_event__tp_format(const char *sys, const char *name);
25 
26 struct event_format *trace_event__tp_format_id(int id);
27 
28 int bigendian(void);
29 
30 void event_format__fprintf(struct event_format *event,
31 			   int cpu, void *data, int size, FILE *fp);
32 
33 void event_format__print(struct event_format *event,
34 			 int cpu, void *data, int size);
35 
36 int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size);
37 int parse_event_file(struct pevent *pevent,
38 		     char *buf, unsigned long size, char *sys);
39 
40 unsigned long long
41 raw_field_value(struct event_format *event, const char *name, void *data);
42 
43 void parse_proc_kallsyms(struct pevent *pevent, char *file, unsigned int size);
44 void parse_ftrace_printk(struct pevent *pevent, char *file, unsigned int size);
45 void parse_saved_cmdline(struct pevent *pevent, char *file, unsigned int size);
46 
47 ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);
48 
49 struct event_format *trace_find_next_event(struct pevent *pevent,
50 					   struct event_format *event);
51 unsigned long long read_size(struct event_format *event, void *ptr, int size);
52 unsigned long long eval_flag(const char *flag);
53 
54 int read_tracing_data(int fd, struct list_head *pattrs);
55 
56 struct tracing_data {
57 	/* size is only valid if temp is 'true' */
58 	ssize_t size;
59 	bool temp;
60 	char temp_file[50];
61 };
62 
63 struct tracing_data *tracing_data_get(struct list_head *pattrs,
64 				      int fd, bool temp);
65 int tracing_data_put(struct tracing_data *tdata);
66 
67 
68 struct addr_location;
69 
70 struct perf_session;
71 struct perf_stat_config;
72 
73 struct scripting_ops {
74 	const char *name;
75 	int (*start_script) (const char *script, int argc, const char **argv);
76 	int (*flush_script) (void);
77 	int (*stop_script) (void);
78 	void (*process_event) (union perf_event *event,
79 			       struct perf_sample *sample,
80 			       struct perf_evsel *evsel,
81 			       struct addr_location *al);
82 	void (*process_stat)(struct perf_stat_config *config,
83 			     struct perf_evsel *evsel, u64 tstamp);
84 	void (*process_stat_interval)(u64 tstamp);
85 	int (*generate_script) (struct pevent *pevent, const char *outfile);
86 };
87 
88 extern unsigned int scripting_max_stack;
89 
90 int script_spec_register(const char *spec, struct scripting_ops *ops);
91 
92 void setup_perl_scripting(void);
93 void setup_python_scripting(void);
94 
95 struct scripting_context {
96 	struct pevent *pevent;
97 	void *event_data;
98 };
99 
100 int common_pc(struct scripting_context *context);
101 int common_flags(struct scripting_context *context);
102 int common_lock_depth(struct scripting_context *context);
103 
104 #endif /* _PERF_UTIL_TRACE_EVENT_H */
105