[patch/rfc/hppa] handle setting gp for calling shlib functions

[Andrew Cagney]

>>The function/variable is (well was, it appears to have fallen off the 
>>> radar for the moment) also wanted for a second reason.  When it comes to 
>>> implementing ABI variants the full function type info is needed.  Hence, 
>>> a ``struct value'' function descriptor (or descriptor pointer / type) 
>>> are going to eventually be needed anyway.  Hence, I think an updated 
>>> push-dummy-call with the new parameter would be better.
> 
> 
> i can certainly try to look into this, but in lieu of the above (at
> least in the meantime) would it be ok if i stash the func descriptor 
> passed into convert_from_func_ptr_addr into a "cache" in the
> tdep structure, and in push_dummy_call check the passed in funcaddr
> against the cached value?

Er, no, we're going to fix it.

Andrew