PERF_EVENT_IOC_SET_BPF
case PERF_EVENT_IOC_SET_BPF:
if (ioctl(pfd, PERF_EVENT_IOC_SET_BPF, prog_fd) < 0) {
ret = ioctl(FD(evsel, x, y), PERF_EVENT_IOC_SET_BPF, fd);
PERF_EVENT_IOC_SET_BPF,
err = ioctl(pmu_fd, PERF_EVENT_IOC_SET_BPF, prog_fd);
err = ioctl(pmu_fd[i], PERF_EVENT_IOC_SET_BPF, prog_fd[i]);