Removing nested function from elfxx-aarch64.c

[Eric Botcazou]

> I don't think we've ever needed an executable stack for nested functions if
> pointers to them aren't used.  It's only the trampolines that those use
> that need it.  The compiler knows when the address of a nested function is
> needed because it has local binding (for C at any rate).

Yes, that's what I tried to say in my reply to Nick.

-- 
Eric Botcazou