1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __TRACE_HELPER_H 3#define __TRACE_HELPER_H 4 5#include <bpf/libbpf.h> 6 7struct ksym { 8 long addr; 9 char *name; 10}; 11 12int load_kallsyms(void); 13struct ksym *ksym_search(long key); 14long ksym_get_addr(const char *name); 15 16/* open kallsyms and find addresses on the fly, faster than load + search. */ 17int kallsyms_find(const char *sym, unsigned long long *addr); 18 19void read_trace_pipe(void); 20 21ssize_t get_uprobe_offset(const void *addr, ssize_t base); 22ssize_t get_base_addr(void); 23ssize_t get_rel_offset(uintptr_t addr); 24 25#endif 26