1 // SPDX-License-Identifier: GPL-2.0
2 #include <asm/unistd.h>
3 #include <linux/bpf.h>
4 #include <unistd.h>
5 
6 #ifndef __NR_bpf
7 # if defined(__i386__)
8 #  define __NR_bpf 357
9 # elif defined(__x86_64__)
10 #  define __NR_bpf 321
11 # elif defined(__aarch64__)
12 #  define __NR_bpf 280
13 # elif defined(__sparc__)
14 #  define __NR_bpf 349
15 # elif defined(__s390__)
16 #  define __NR_bpf 351
17 # elif defined(__mips__) && defined(_ABIO32)
18 #  define __NR_bpf 4355
19 # elif defined(__mips__) && defined(_ABIN32)
20 #  define __NR_bpf 6319
21 # elif defined(__mips__) && defined(_ABI64)
22 #  define __NR_bpf 5315
23 # else
24 #  error __NR_bpf not defined. libbpf does not support your arch.
25 # endif
26 #endif
27 
main(void)28 int main(void)
29 {
30 	union bpf_attr attr;
31 
32 	/* Check fields in attr */
33 	attr.prog_type = BPF_PROG_TYPE_KPROBE;
34 	attr.insn_cnt = 0;
35 	attr.insns = 0;
36 	attr.license = 0;
37 	attr.log_buf = 0;
38 	attr.log_size = 0;
39 	attr.log_level = 0;
40 	attr.kern_version = 0;
41 	attr.prog_flags = 0;
42 
43 	/*
44 	 * Test existence of __NR_bpf and BPF_PROG_LOAD.
45 	 * This call should fail if we run the testcase.
46 	 */
47 	return syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
48 }
49