sys_bpf_prog_load
fd = sys_bpf_prog_load(&attr, attr_sz, attempts);
fd = sys_bpf_prog_load(&attr, attr_sz, attempts);
fd = sys_bpf_prog_load(&attr, attr_sz, attempts);
ret = sys_bpf_prog_load(&attr, attr_sz, PROG_LOAD_ATTEMPTS);
int sys_bpf_prog_load(union bpf_attr *attr, unsigned int size, int attempts);
prog_fd = sys_bpf_prog_load(&attr, sizeof(attr), 1);