tools/perf/util/trace-event.h

   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 plugin_list;
  14
  15 struct trace_event {
  16         struct pevent           *pevent;
  17         struct plugin_list      *plugin_list;
  18 };
  19
  20 int trace_event__init(struct trace_event *t);
  21 void trace_event__cleanup(struct trace_event *t);
  22 int trace_event__register_resolver(struct machine *machine,
  23                                    pevent_func_resolver_t *func);
  24 struct event_format*
  25 trace_event__tp_format(const char *sys, const char *name);
  26
  27 struct event_format *trace_event__tp_format_id(int id);
  28
  29 int bigendian(void);
  30
  31 void event_format__fprintf(struct event_format *event,
  32                            int cpu, void *data, int size, FILE *fp);
  33
  34 void event_format__print(struct event_format *event,
  35                          int cpu, void *data, int size);
  36
  37 int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size);
  38 int parse_event_file(struct pevent *pevent,
  39                      char *buf, unsigned long size, char *sys);
  40
  41 unsigned long long
  42 raw_field_value(struct event_format *event, const char *name, void *data);
  43
  44 void parse_proc_kallsyms(struct pevent *pevent, char *file, unsigned int size);
  45 void parse_ftrace_printk(struct pevent *pevent, char *file, unsigned int size);
  46 void parse_saved_cmdline(struct pevent *pevent, char *file, unsigned int size);
  47
  48 ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);
  49
  50 struct event_format *trace_find_next_event(struct pevent *pevent,
  51                                            struct event_format *event);
  52 unsigned long long read_size(struct event_format *event, void *ptr, int size);
  53 unsigned long long eval_flag(const char *flag);
  54
  55 int read_tracing_data(int fd, struct list_head *pattrs);
  56
  57 struct tracing_data {
  58         /* size is only valid if temp is 'true' */
  59         ssize_t size;
  60         bool temp;
  61         char temp_file[50];
  62 };
  63
  64 struct tracing_data *tracing_data_get(struct list_head *pattrs,
  65                                       int fd, bool temp);
  66 int tracing_data_put(struct tracing_data *tdata);
  67
  68
  69 struct addr_location;
  70
  71 struct perf_session;
  72 struct perf_stat_config;
  73
  74 struct scripting_ops {
  75         const char *name;
  76         int (*start_script) (const char *script, int argc, const char **argv);
  77         int (*flush_script) (void);
  78         int (*stop_script) (void);
  79         void (*process_event) (union perf_event *event,
  80                                struct perf_sample *sample,
  81                                struct perf_evsel *evsel,
  82                                struct addr_location *al);
  83         void (*process_stat)(struct perf_stat_config *config,
  84                              struct perf_evsel *evsel, u64 tstamp);
  85         void (*process_stat_interval)(u64 tstamp);
  86         int (*generate_script) (struct pevent *pevent, const char *outfile);
  87 };
  88
  89 extern unsigned int scripting_max_stack;
  90
  91 int script_spec_register(const char *spec, struct scripting_ops *ops);
  92
  93 void setup_perl_scripting(void);
  94 void setup_python_scripting(void);
  95
  96 struct scripting_context {
  97         struct pevent *pevent;
  98         void *event_data;
  99 };
 100
 101 int common_pc(struct scripting_context *context);
 102 int common_flags(struct scripting_context *context);
 103 int common_lock_depth(struct scripting_context *context);
 104
 105 #endif /* _PERF_UTIL_TRACE_EVENT_H */