1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _PERF_UTIL_TRACE_EVENT_H
3 #define _PERF_UTIL_TRACE_EVENT_H
4
5 #include <stdbool.h>
6 #include <stdio.h>
7 #include <sys/types.h>
8 #include <linux/types.h>
9
10 struct evlist;
11 struct machine;
12 struct perf_sample;
13 union perf_event;
14 struct perf_tool;
15 struct thread;
16 struct tep_plugin_list;
17 struct evsel;
18
19 struct trace_event {
20 struct tep_handle *pevent;
21 struct tep_plugin_list *plugin_list;
22 };
23
24 /* Computes a version number comparable with LIBTRACEEVENT_VERSION from Makefile.config. */
25 #define MAKE_LIBTRACEEVENT_VERSION(a, b, c) ((a)*255*255+(b)*255+(c))
26
27 typedef char *(tep_func_resolver_t)(void *priv,
28 unsigned long long *addrp, char **modp);
29
30 bool have_tracepoints(struct list_head *evlist);
31
32 int trace_event__init(struct trace_event *t);
33 void trace_event__cleanup(struct trace_event *t);
34 int trace_event__register_resolver(struct machine *machine,
35 tep_func_resolver_t *func);
36 struct tep_event*
37 trace_event__tp_format(const char *sys, const char *name);
38
39 struct tep_event *trace_event__tp_format_id(int id);
40
41 void event_format__fprintf(struct tep_event *event,
42 int cpu, void *data, int size, FILE *fp);
43
44 void event_format__print(struct tep_event *event,
45 int cpu, void *data, int size);
46
47 int parse_ftrace_file(struct tep_handle *pevent, char *buf, unsigned long size);
48 int parse_event_file(struct tep_handle *pevent,
49 char *buf, unsigned long size, char *sys);
50
51 unsigned long long
52 raw_field_value(struct tep_event *event, const char *name, void *data);
53
54 void parse_proc_kallsyms(struct tep_handle *pevent, char *file, unsigned int size);
55 void parse_ftrace_printk(struct tep_handle *pevent, char *file, unsigned int size);
56 void parse_saved_cmdline(struct tep_handle *pevent, char *file, unsigned int size);
57
58 ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);
59
60 unsigned long long read_size(struct tep_event *event, void *ptr, int size);
61 unsigned long long eval_flag(const char *flag);
62
63 int read_tracing_data(int fd, struct list_head *pattrs);
64
65 struct tracing_data {
66 /* size is only valid if temp is 'true' */
67 ssize_t size;
68 bool temp;
69 char temp_file[50];
70 };
71
72 struct tracing_data *tracing_data_get(struct list_head *pattrs,
73 int fd, bool temp);
74 int tracing_data_put(struct tracing_data *tdata);
75
76
77 struct addr_location;
78
79 struct perf_session;
80 struct perf_stat_config;
81
82 struct scripting_ops {
83 const char *name;
84 const char *dirname; /* For script path .../scripts/<dirname>/... */
85 int (*start_script)(const char *script, int argc, const char **argv,
86 struct perf_session *session);
87 int (*flush_script) (void);
88 int (*stop_script) (void);
89 void (*process_event) (union perf_event *event,
90 struct perf_sample *sample,
91 struct evsel *evsel,
92 struct addr_location *al,
93 struct addr_location *addr_al);
94 void (*process_switch)(union perf_event *event,
95 struct perf_sample *sample,
96 struct machine *machine);
97 void (*process_auxtrace_error)(struct perf_session *session,
98 union perf_event *event);
99 void (*process_stat)(struct perf_stat_config *config,
100 struct evsel *evsel, u64 tstamp);
101 void (*process_stat_interval)(u64 tstamp);
102 void (*process_throttle)(union perf_event *event,
103 struct perf_sample *sample,
104 struct machine *machine);
105 int (*generate_script) (struct tep_handle *pevent, const char *outfile);
106 };
107
108 extern unsigned int scripting_max_stack;
109
110 int script_spec_register(const char *spec, struct scripting_ops *ops);
111
112 void script_fetch_insn(struct perf_sample *sample, struct thread *thread,
113 struct machine *machine);
114
115 void setup_perl_scripting(void);
116 void setup_python_scripting(void);
117
118 struct scripting_context {
119 struct tep_handle *pevent;
120 void *event_data;
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 struct perf_session *session;
127 };
128
129 void scripting_context__update(struct scripting_context *scripting_context,
130 union perf_event *event,
131 struct perf_sample *sample,
132 struct evsel *evsel,
133 struct addr_location *al,
134 struct addr_location *addr_al);
135
136 int common_pc(struct scripting_context *context);
137 int common_flags(struct scripting_context *context);
138 int common_lock_depth(struct scripting_context *context);
139
140 #define SAMPLE_FLAGS_BUF_SIZE 64
141 int perf_sample__sprintf_flags(u32 flags, char *str, size_t sz);
142
143 #if defined(LIBTRACEEVENT_VERSION) && LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
144 #include <traceevent/event-parse.h>
145
tep_field_is_relative(unsigned long flags)146 static inline bool tep_field_is_relative(unsigned long flags)
147 {
148 return (flags & TEP_FIELD_IS_RELATIVE) != 0;
149 }
150 #else
151 #include <linux/compiler.h>
152
tep_field_is_relative(unsigned long flags __maybe_unused)153 static inline bool tep_field_is_relative(unsigned long flags __maybe_unused)
154 {
155 return false;
156 }
157 #endif
158
159 #endif /* _PERF_UTIL_TRACE_EVENT_H */
160