tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#include <asm/unistd.h>
2#include <linux/bpf.h>
3#include <unistd.h>
4
5#ifndef __NR_bpf
6# if defined(__i386__)
7# define __NR_bpf 357
8# elif defined(__x86_64__)
9# define __NR_bpf 321
10# elif defined(__aarch64__)
11# define __NR_bpf 280
12# error __NR_bpf not defined. libbpf does not support your arch.
13# endif
14#endif
15
16int main(void)
17{
18 union bpf_attr attr;
19
20 /* Check fields in attr */
21 attr.prog_type = BPF_PROG_TYPE_KPROBE;
22 attr.insn_cnt = 0;
23 attr.insns = 0;
24 attr.license = 0;
25 attr.log_buf = 0;
26 attr.log_size = 0;
27 attr.log_level = 0;
28 attr.kern_version = 0;
29
30 /*
31 * Test existence of __NR_bpf and BPF_PROG_LOAD.
32 * This call should fail if we run the testcase.
33 */
34 return syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
35}