1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _PERF_UTIL_TRACE_EVENT_H
3 #define _PERF_UTIL_TRACE_EVENT_H
4 
5 #include <traceevent/event-parse.h>
6 #include "parse-events.h"
7 
8 struct machine;
9 struct perf_sample;
10 union perf_event;
11 struct perf_tool;
12 struct thread;
13 struct tep_plugin_list;
14 struct evsel;
15 
16 struct trace_event {
17 	struct tep_handle	*pevent;
18 	struct tep_plugin_list	*plugin_list;
19 };
20 
21 int trace_event__init(struct trace_event *t);
22 void trace_event__cleanup(struct trace_event *t);
23 int trace_event__register_resolver(struct machine *machine,
24 				   tep_func_resolver_t *func);
25 struct tep_event*
26 trace_event__tp_format(const char *sys, const char *name);
27 
28 struct tep_event *trace_event__tp_format_id(int id);
29 
30 int bigendian(void);
31 
32 void event_format__fprintf(struct tep_event *event,
33 			   int cpu, void *data, int size, FILE *fp);
34 
35 void event_format__print(struct tep_event *event,
36 			 int cpu, void *data, int size);
37 
38 int parse_ftrace_file(struct tep_handle *pevent, char *buf, unsigned long size);
39 int parse_event_file(struct tep_handle *pevent,
40 		     char *buf, unsigned long size, char *sys);
41 
42 unsigned long long
43 raw_field_value(struct tep_event *event, const char *name, void *data);
44 
45 void parse_proc_kallsyms(struct tep_handle *pevent, char *file, unsigned int size);
46 void parse_ftrace_printk(struct tep_handle *pevent, char *file, unsigned int size);
47 void parse_saved_cmdline(struct tep_handle *pevent, char *file, unsigned int size);
48 
49 ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);
50 
51 unsigned long long read_size(struct tep_event *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 	const char *dirname; /* For script path .../scripts/<dirname>/... */
76 	int (*start_script)(const char *script, int argc, const char **argv,
77 			    struct perf_session *session);
78 	int (*flush_script) (void);
79 	int (*stop_script) (void);
80 	void (*process_event) (union perf_event *event,
81 			       struct perf_sample *sample,
82 			       struct evsel *evsel,
83 			       struct addr_location *al,
84 			       struct addr_location *addr_al);
85 	void (*process_switch)(union perf_event *event,
86 			       struct perf_sample *sample,
87 			       struct machine *machine);
88 	void (*process_auxtrace_error)(struct perf_session *session,
89 				       union perf_event *event);
90 	void (*process_stat)(struct perf_stat_config *config,
91 			     struct evsel *evsel, u64 tstamp);
92 	void (*process_stat_interval)(u64 tstamp);
93 	void (*process_throttle)(union perf_event *event,
94 				 struct perf_sample *sample,
95 				 struct machine *machine);
96 	int (*generate_script) (struct tep_handle *pevent, const char *outfile);
97 };
98 
99 extern unsigned int scripting_max_stack;
100 
101 int script_spec_register(const char *spec, struct scripting_ops *ops);
102 
103 void script_fetch_insn(struct perf_sample *sample, struct thread *thread,
104 		       struct machine *machine);
105 
106 void setup_perl_scripting(void);
107 void setup_python_scripting(void);
108 
109 struct scripting_context {
110 	struct tep_handle *pevent;
111 	void *event_data;
112 	union perf_event *event;
113 	struct perf_sample *sample;
114 	struct evsel *evsel;
115 	struct addr_location *al;
116 	struct addr_location *addr_al;
117 	struct perf_session *session;
118 };
119 
120 void scripting_context__update(struct scripting_context *scripting_context,
121 			       union perf_event *event,
122 			       struct perf_sample *sample,
123 			       struct evsel *evsel,
124 			       struct addr_location *al,
125 			       struct addr_location *addr_al);
126 
127 int common_pc(struct scripting_context *context);
128 int common_flags(struct scripting_context *context);
129 int common_lock_depth(struct scripting_context *context);
130 
131 #define SAMPLE_FLAGS_BUF_SIZE 64
132 int perf_sample__sprintf_flags(u32 flags, char *str, size_t sz);
133 
134 #endif /* _PERF_UTIL_TRACE_EVENT_H */
135