[parisc-linux] long double on hppa64-*-linux*

[Grant Grundler]

On Sat, Feb 04, 2006 at 06:41:00PM -0500, John David Anglin wrote:
> I noticed another long double issue.  Long double is defined to be 128
> bits on all 64-bit targets on the PA.  I believe that it should be 128 bits
> only on hpux.
> 
> I would like to change the long double default on PA64t o 64 bits as there
> isn't any hardware support for the 128-bit type, and we currently don't
> have software support for 128-bit long doubles implemented.  I can't see
> this affecting anything, but it's another ABI change and I thought I should
> ask.

I'm ok with it. The only downside I can think of is hypothetical:
supporting HPUX binaries with "long double" on parisc-linux hmight get
interesting should any misaligned trap handlers or syscalls need to deal
with long double.

hth,
grant