STACK_ENTRY_ALIGN
ktop -= STACK_ENTRY_ALIGN;
ucp->uc_stack.ss_size - size) & ~(STACK_ENTRY_ALIGN - 1));
sp -= STACK_ENTRY_ALIGN / sizeof (*sp);
tp->t_sp -= STACK_ENTRY_ALIGN; /* fake a call */
#if STACK_ALIGN != 16 || STACK_ENTRY_ALIGN != 8
ASSERT((minstacksz & (STACK_ENTRY_ALIGN - 1ul)) == 0);
fp = (caddr_t)((uintptr_t)fp & ~(STACK_ENTRY_ALIGN - 1ul));
sp -= STACK_ENTRY_ALIGN;
ASSERT(((uintptr_t)t->t_stk & (STACK_ENTRY_ALIGN - 1)) == 0);
ASSERT((t->t_sp & (STACK_ENTRY_ALIGN - 1)) == 0);