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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _PERF_UTIL_TRACE_EVENT_H
#define _PERF_UTIL_TRACE_EVENT_H
#include <stdbool.h>
#include <stdio.h>
#include <sys/types.h>
#include <linux/types.h>
struct machine;
struct tep_format_field;
struct tep_plugin_list;
struct trace_event {
struct tep_handle *pevent;
struct tep_plugin_list *plugin_list;
};
/* Computes a version number comparable with LIBTRACEEVENT_VERSION from Makefile.config. */
#define MAKE_LIBTRACEEVENT_VERSION(a, b, c) ((a)*255*255+(b)*255+(c))
typedef char *(tep_func_resolver_t)(void *priv,
unsigned long long *addrp, char **modp);
bool have_tracepoints(struct list_head *evlist);
int trace_event__init(struct trace_event *t);
void trace_event__cleanup(struct trace_event *t);
void trace_event__exit(void);
int trace_event__register_resolver(struct machine *machine,
tep_func_resolver_t *func);
struct tep_event*
trace_event__tp_format(const char *sys, const char *name);
struct tep_event *trace_event__tp_format_id(int id);
void event_format__fprintf(const struct tep_event *event,
int cpu, void *data, int size, FILE *fp);
int parse_ftrace_file(struct tep_handle *pevent, char *buf, unsigned long size);
int parse_event_file(struct tep_handle *pevent,
char *buf, unsigned long size, char *sys);
unsigned long long
raw_field_value(struct tep_event *event, const char *name, void *data);
const char *parse_task_states(struct tep_format_field *state_field);
void parse_proc_kallsyms(struct tep_handle *pevent, char *file, unsigned int size);
void parse_ftrace_printk(struct tep_handle *pevent, char *file, unsigned int size);
void parse_saved_cmdline(struct tep_handle *pevent, char *file, unsigned int size);
ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);
unsigned long long read_size(struct tep_event *event, void *ptr, int size);
unsigned long long eval_flag(const char *flag);
int read_tracing_data(int fd, struct list_head *pattrs);
/*
* Return the tracepoint name in the format "subsystem:event_name",
* callers should free the returned string.
*/
char *tracepoint_id_to_name(u64 config);
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);
#if defined(LIBTRACEEVENT_VERSION) && LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
#include <event-parse.h>
static inline bool tep_field_is_relative(unsigned long flags)
{
return (flags & TEP_FIELD_IS_RELATIVE) != 0;
}
#else
#include <linux/compiler.h>
static inline bool tep_field_is_relative(unsigned long flags __maybe_unused)
{
return false;
}
#endif
#endif /* _PERF_UTIL_TRACE_EVENT_H */
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