| // SPDX-License-Identifier: GPL-2.0 |
| #include <asm/unistd.h> |
| #include <linux/bpf.h> |
| #include <unistd.h> |
| |
| #ifndef __NR_bpf |
| # if defined(__i386__) |
| # define __NR_bpf 357 |
| # elif defined(__x86_64__) |
| # define __NR_bpf 321 |
| # elif defined(__aarch64__) |
| # define __NR_bpf 280 |
| # elif defined(__sparc__) |
| # define __NR_bpf 349 |
| # elif defined(__s390__) |
| # define __NR_bpf 351 |
| # else |
| # error __NR_bpf not defined. libbpf does not support your arch. |
| # endif |
| #endif |
| |
| int main(void) |
| { |
| union bpf_attr attr; |
| |
| /* Check fields in attr */ |
| attr.prog_type = BPF_PROG_TYPE_KPROBE; |
| attr.insn_cnt = 0; |
| attr.insns = 0; |
| attr.license = 0; |
| attr.log_buf = 0; |
| attr.log_size = 0; |
| attr.log_level = 0; |
| attr.kern_version = 0; |
| attr.prog_flags = 0; |
| |
| /* |
| * Test existence of __NR_bpf and BPF_PROG_LOAD. |
| * This call should fail if we run the testcase. |
| */ |
| return syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr)); |
| } |