/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __TRACE_HELPER_H #define __TRACE_HELPER_H #include <libbpf.h> #include <linux/perf_event.h> struct ksym { long addr; char *name; }; int load_kallsyms(void); struct ksym *ksym_search(long key); long ksym_get_addr(const char *name); typedef enum bpf_perf_event_ret (*perf_event_print_fn)(void *data, int size); int perf_event_mmap(int fd); int perf_event_mmap_header(int fd, struct perf_event_mmap_page **header); /* return LIBBPF_PERF_EVENT_DONE or LIBBPF_PERF_EVENT_ERROR */ int perf_event_poller(int fd, perf_event_print_fn output_fn); int perf_event_poller_multi(int *fds, struct perf_event_mmap_page **headers, int num_fds, perf_event_print_fn output_fn); #endif