| // 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)); | |
| } |