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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __TRACE_HELPER_H
#define __TRACE_HELPER_H
struct ksym {
long addr;
char *name;
};
int load_kallsyms(void);
struct ksym *ksym_search(long key);
typedef int (*perf_event_print_fn)(void *data, int size);
/* return code for perf_event_print_fn */
#define PERF_EVENT_DONE 0
#define PERF_EVENT_ERROR -1
#define PERF_EVENT_CONT -2
int perf_event_mmap(int fd);
/* return PERF_EVENT_DONE or PERF_EVENT_ERROR */
int perf_event_poller(int fd, perf_event_print_fn output_fn);
#endif
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