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From: Ulrich Drepper <drepper@redhat.com>
To: Matthew Wilcox <willy@debian.org>
Cc: parisc-linux@parisc-linux.org
Subject: Re: [parisc-linux] long double
Date: 17 Jan 2002 16:42:46 -0800	[thread overview]
Message-ID: <m36660a3qx.fsf@myware.mynet> (raw)
In-Reply-To: <20020118003542.F9221@parcelfarce.linux.theplanet.co.uk>

Matthew Wilcox <willy@debian.org> writes:

> (3) Change both gcc and glibc to think that long double is actually
> 128-bits wide.

This is definitely what you should do.  glibc includes now a full set
of 128-bit math functions.  They should be used everywhere the ABI are
not demanding the braindamaged 96-bit format.  Even Alpha, PPC, etc
will change to this when time comes.

> This is almost certainly going to break some packages, and the
> kernel FP support may have to be enhanced to emulate some of the
> opcodes.

Not necessarily.  Look at soft-fp support in glibc.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------

  reply	other threads:[~2002-01-18  0:43 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-01-18  0:35 [parisc-linux] long double Matthew Wilcox
2002-01-18  0:42 ` Ulrich Drepper [this message]
2002-01-18  1:13   ` Stan Sieler
2002-01-18  3:20 ` John David Anglin

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