Re: [PATCH 1/2] ntdll: Restore stack guard and prevent stack from shrinking

[Alexandre Julliard]

Piotr Caban  writes:
> @@ -1617,9 +1617,18 @@ BOOL virtual_handle_stack_fault( void *addr )
>          BYTE vprot = view->prot[((const char *)page - (const char *)view->base) >> page_shift];
>          if (vprot & VPROT_GUARD)
>          {
> -
>        struct _TEB *teb = NtCurrentTeb();
>        VIRTUAL_SetProt( view, page, page_size, vprot & ~VPROT_GUARD );
> -
>        if ((char *)page + page_size == NtCurrentTeb()->Tib.StackLimit)
> -
>            NtCurrentTeb()->Tib.StackLimit = page;
> -
>        if ((char *)page - page_size == teb->DeallocationStack)
> -
>            teb->Tib.StackLimit = page;
> -
>        else if ((char*)addr > (char*)teb->Tib.StackLimit + page_size &&
> -
>                teb->Tib.StackLimit == (char*)teb->DeallocationStack + page_size &&
> -
>                (view = VIRTUAL_FindView( (char*)teb->Tib.StackLimit, 0)))
> -
>        {
> -
>            vprot = view->prot[((char*)teb->Tib.StackLimit - (char*)view->base) >> page_shift];
> -
>            VIRTUAL_SetProt( view, teb->Tib.StackLimit, page_size, vprot | VPROT_GUARD);
> -
>            teb->Tib.StackLimit = (char*)teb->Tib.StackLimit + page_size;
> -
>        }

Why do you want to lookup the view again?