PSL_SYSCALLEMU
if (curlwp->l_proc->p_slflag & PSL_SYSCALLEMU) {
if ((p->p_slflag & (PSL_SYSCALL|PSL_TRACED|PSL_SYSCALLEMU)) ==
CLR(p->p_slflag, PSL_SYSCALLEMU);
SET(t->p_slflag, PSL_SYSCALLEMU);