[rfc][21/37] Eliminate builtin_type_ macros: Platform-neutral builtin_type_void

[Daniel Jacobowitz]

On Sun, Sep 07, 2008 at 05:58:20PM +0200, Ulrich Weigand wrote:
> 2.) lookup_pointer_type gets an gdbarch argument (or maybe just a 
>     "size" argument, as that is what we really need)
> 
>     In this case, we'd probably have to extend the caching mechanims
>     to cache pointers of multiple different sizes (note that to some
>     extent that exists today via TYPE_CHAIN, see make_qualified_type).
> 
>     Then, there wouldn't really be any strict reason any more why
>     we couldn't allow making pointer types to platform-neutral types ...

I like this idea; maybe pass the gdbarch to lookup_pointer_type, and
let it encapsulate the knowledge that the size is all we need?

There are architectures with differently sized pointers; this might
make them easier to accomodate someday.

-- 
Daniel Jacobowitz
CodeSourcery