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