trace-event.h

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _PERF_UTIL_TRACE_EVENT_H
#define _PERF_UTIL_TRACE_EVENT_H

#include <traceevent/event-parse.h>
#include "parse-events.h"

struct machine;
struct perf_sample;
union perf_event;
struct perf_tool;
struct thread;
struct plugin_list;

struct trace_event {
    struct pevent       *pevent;
    struct plugin_list  *plugin_list;
};

int trace_event__init(struct trace_event *t);
void trace_event__cleanup(struct trace_event *t);
int trace_event__register_resolver(struct machine *machine,
                   pevent_func_resolver_t *func);
struct event_format*
trace_event__tp_format(const char *sys, const char *name);

struct event_format *trace_event__tp_format_id(int id);

int bigendian(void);

void event_format__fprintf(struct event_format *event,
               int cpu, void *data, int size, FILE *fp);

void event_format__print(struct event_format *event,
             int cpu, void *data, int size);

int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size);
int parse_event_file(struct pevent *pevent,
             char *buf, unsigned long size, char *sys);

unsigned long long
raw_field_value(struct event_format *event, const char *name, void *data);

void parse_proc_kallsyms(struct pevent *pevent, char *file, unsigned int size);
void parse_ftrace_printk(struct pevent *pevent, char *file, unsigned int size);
void parse_saved_cmdline(struct pevent *pevent, char *file, unsigned int size);

ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);

struct event_format *trace_find_next_event(struct pevent *pevent,
                       struct event_format *event);
unsigned long long read_size(struct event_format *event, void *ptr, int size);
unsigned long long eval_flag(const char *flag);

int read_tracing_data(int fd, struct list_head *pattrs);

struct tracing_data {
    /* size is only valid if temp is 'true' */
    ssize_t size;
    bool temp;
    char temp_file[50];
};

struct tracing_data *tracing_data_get(struct list_head *pattrs,
                      int fd, bool temp);
int tracing_data_put(struct tracing_data *tdata);


struct addr_location;

struct perf_session;
struct perf_stat_config;

struct scripting_ops {
    const char *name;
    int (*start_script) (const char *script, int argc, const char **argv);
    int (*flush_script) (void);
    int (*stop_script) (void);
    void (*process_event) (union perf_event *event,
                   struct perf_sample *sample,
                   struct perf_evsel *evsel,
                   struct addr_location *al);
    void (*process_stat)(struct perf_stat_config *config,
                 struct perf_evsel *evsel, u64 tstamp);
    void (*process_stat_interval)(u64 tstamp);
    int (*generate_script) (struct pevent *pevent, const char *outfile);
};

extern unsigned int scripting_max_stack;

int script_spec_register(const char *spec, struct scripting_ops *ops);

void setup_perl_scripting(void);
void setup_python_scripting(void);

struct scripting_context {
    struct pevent *pevent;
    void *event_data;
};

int common_pc(struct scripting_context *context);
int common_flags(struct scripting_context *context);
int common_lock_depth(struct scripting_context *context);

#endif /* _PERF_UTIL_TRACE_EVENT_H */