Re: native hppa2.0w-hp-hpux11.00, 32-bit versus 64-bit

Daniel Jacobowitz
2004-06-27T18:57:03Z

On Sun, Jun 27, 2004 at 11:40:26AM -0700, Randolph Chung wrote:
> > ac> What's the ABI wordsize - the size of a register pushed onto the stack?
> > ac> "info registers" should be using that register size and looking at the
> > ac> HP/PA code, that appears to be the case.
> >
> > It's 4 bytes, all right.
>
> The hppa target naming conventions are a bit weird (to me, at least)
>
> hppa2.0w-*-* is a 32-bit target, however the w means that you can use
> 64-bit registers and the pa2.0 64-bit opcodes (ldd, std, etc)
>
> hppa64-*-* is the 64-bit target.
>
> > The funny thing is, gdb 6.1.1 "maint print registers" says that
> > r19 is 4 bytes long, but "info reg r19" has special code to print
> > all 8 bytes of it.
> >
> > I'm still kinda dubious, but if it's okay with randolph that the
> > debugger quietly operates in 32-bit mode, it's okay with me.
> > I would do something like this:
>
> Yes, i think this is ok.

If hppa2.0w-*-* is a 32-bit target (pointers, I assume you mean), but
has 64-bit registers, then the regcache for it should indicate that
registers are eight bytes wide... maybe this isn't a regression or a
surprise, but it's definitely better if you show all bits.

--
Daniel Jacobowitz