ARCH_GET_XCOMP_SUPP
case ARCH_GET_XCOMP_SUPP:
case ARCH_GET_XCOMP_SUPP:
rc = syscall(SYS_arch_prctl, ARCH_GET_XCOMP_SUPP, &features);
rc = syscall(SYS_arch_prctl, ARCH_GET_XCOMP_SUPP, &features);