[RFA]: gdbarch FETCH_POINTER_ARGUMENT

[Adam Fedor]

Andrew Cagney wrote:
> Adam,
> 
> I think the FETCH_POINTER_ARGUMENT method should have the signature:
> 
> (CORE_ADDR) (struct frame_info *frame, int argi, struct type *type)
> 
> the call would then look like:
> 
> addr = gdbarch_fetch_pointer_argument (current_gdbarch, 
> get_current_frame (), argi, builtin_type_void_func_ptr);
> 
> See: cooked regcache -> frame
> http://sources.redhat.com/ml/gdb/2003-05/msg00287.html
> 
> for the rationale,
> 
> Andrew
> 

Here's an updated patch. The more I looked at the "struct type *type" 
argument, the less I understood about how it should be used. I assume it 
would only be used, so far, on i386, but I'm easily confused by stacks 
and registers (and how things are stored there), so any pointers would 
be appreciated.

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