tools/perf/util/trace-event.h

Source file repositories/reference/linux-study-clean/tools/perf/util/trace-event.h

File Facts

System
Linux kernel
Corpus path
tools/perf/util/trace-event.h
Extension
.h
Size
5045 bytes
Lines
166
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

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);
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);


struct addr_location;

struct perf_session;
struct perf_stat_config;

struct scripting_ops {
	const char *name;
	const char *dirname; /* For script path .../scripts/<dirname>/... */
	int (*start_script)(const char *script, int argc, const char **argv,
			    struct perf_session *session);
	int (*flush_script) (void);
	int (*stop_script) (void);
	void (*process_event) (union perf_event *event,
			       struct perf_sample *sample,
			       struct evsel *evsel,
			       struct addr_location *al,
			       struct addr_location *addr_al);
	void (*process_switch)(union perf_event *event,
			       struct perf_sample *sample,
			       struct machine *machine);
	void (*process_auxtrace_error)(struct perf_session *session,
				       union perf_event *event);
	void (*process_stat)(struct perf_stat_config *config,
			     struct evsel *evsel, u64 tstamp);
	void (*process_stat_interval)(u64 tstamp);
	void (*process_throttle)(union perf_event *event,
				 struct perf_sample *sample,

Annotation

Implementation Notes