linux/tools/perf/util/trace-event.h
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   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
   8struct machine;
   9struct perf_sample;
  10union perf_event;
  11struct perf_tool;
  12struct thread;
  13struct tep_plugin_list;
  14
  15struct trace_event {
  16        struct tep_handle       *pevent;
  17        struct tep_plugin_list  *plugin_list;
  18};
  19
  20int trace_event__init(struct trace_event *t);
  21void trace_event__cleanup(struct trace_event *t);
  22int trace_event__register_resolver(struct machine *machine,
  23                                   tep_func_resolver_t *func);
  24struct tep_event*
  25trace_event__tp_format(const char *sys, const char *name);
  26
  27struct tep_event *trace_event__tp_format_id(int id);
  28
  29int bigendian(void);
  30
  31void event_format__fprintf(struct tep_event *event,
  32                           int cpu, void *data, int size, FILE *fp);
  33
  34void event_format__print(struct tep_event *event,
  35                         int cpu, void *data, int size);
  36
  37int parse_ftrace_file(struct tep_handle *pevent, char *buf, unsigned long size);
  38int parse_event_file(struct tep_handle *pevent,
  39                     char *buf, unsigned long size, char *sys);
  40
  41unsigned long long
  42raw_field_value(struct tep_event *event, const char *name, void *data);
  43
  44void parse_proc_kallsyms(struct tep_handle *pevent, char *file, unsigned int size);
  45void parse_ftrace_printk(struct tep_handle *pevent, char *file, unsigned int size);
  46void parse_saved_cmdline(struct tep_handle *pevent, char *file, unsigned int size);
  47
  48ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);
  49
  50unsigned long long read_size(struct tep_event *event, void *ptr, int size);
  51unsigned long long eval_flag(const char *flag);
  52
  53int read_tracing_data(int fd, struct list_head *pattrs);
  54
  55struct tracing_data {
  56        /* size is only valid if temp is 'true' */
  57        ssize_t size;
  58        bool temp;
  59        char temp_file[50];
  60};
  61
  62struct tracing_data *tracing_data_get(struct list_head *pattrs,
  63                                      int fd, bool temp);
  64int tracing_data_put(struct tracing_data *tdata);
  65
  66
  67struct addr_location;
  68
  69struct perf_session;
  70struct perf_stat_config;
  71
  72struct scripting_ops {
  73        const char *name;
  74        int (*start_script) (const char *script, int argc, const char **argv);
  75        int (*flush_script) (void);
  76        int (*stop_script) (void);
  77        void (*process_event) (union perf_event *event,
  78                               struct perf_sample *sample,
  79                               struct evsel *evsel,
  80                               struct addr_location *al);
  81        void (*process_switch)(union perf_event *event,
  82                               struct perf_sample *sample,
  83                               struct machine *machine);
  84        void (*process_stat)(struct perf_stat_config *config,
  85                             struct evsel *evsel, u64 tstamp);
  86        void (*process_stat_interval)(u64 tstamp);
  87        int (*generate_script) (struct tep_handle *pevent, const char *outfile);
  88};
  89
  90extern unsigned int scripting_max_stack;
  91
  92int script_spec_register(const char *spec, struct scripting_ops *ops);
  93
  94void setup_perl_scripting(void);
  95void setup_python_scripting(void);
  96
  97struct scripting_context {
  98        struct tep_handle *pevent;
  99        void *event_data;
 100};
 101
 102int common_pc(struct scripting_context *context);
 103int common_flags(struct scripting_context *context);
 104int common_lock_depth(struct scripting_context *context);
 105
 106#endif /* _PERF_UTIL_TRACE_EVENT_H */
 107