kallsyms.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _LIBLOCKDEP_LINUX_KALLSYMS_H_
 3#define _LIBLOCKDEP_LINUX_KALLSYMS_H_
 4
 5#include <linux/kernel.h>
 6#include <stdio.h>
 7#include <unistd.h>
 8
 9#define KSYM_NAME_LEN 512
10
11struct module;
12
13static inline const char *kallsyms_lookup(unsigned long addr,
14					  unsigned long *symbolsize,
15					  unsigned long *offset,
16					  char **modname, char *namebuf)
17{
18	return NULL;
19}
20
21#ifdef HAVE_BACKTRACE_SUPPORT
22#include <execinfo.h>
23#include <stdlib.h>
24static inline void print_ip_sym(const char *loglvl, unsigned long ip)
25{
26	char **name;
27
28	name = backtrace_symbols((void **)&ip, 1);
29
30	dprintf(STDOUT_FILENO, "%s\n", *name);
31
32	free(name);
33}
34#else
35static inline void print_ip_sym(const char *loglvl, unsigned long ip) {}
36#endif
37
38#endif