ioctl 612 gc/dyn_load.c if (ioctl(fd, PIOCNMAP, &needed_sz) < 0) { ioctl 622 gc/dyn_load.c if (ioctl(fd, PIOCMAP, addr_map) < 0) { ioctl 672 gc/dyn_load.c obj = ioctl(fd, PIOCOPENM, &arg);