Subject: Re: mips SOFTFLOAT kernel config option
To: Jonathan Stone <jonathan@DSG.Stanford.EDU>
From: Ignatios Souvatzis <ignatios@cs.uni-bonn.de>
List: tech-kern
Date: 10/04/1999 12:37:21
On Tue, Sep 28, 1999 at 09:12:40PM -0700, Jonathan Stone wrote:
> 
> Like ptrace()/procfs access to userlevel fp registers?  (same deal, really).
> Also kernel-debugger register-dump code.
> 
> How do other ports handle this (e.g., mac68k on FPU-less 68040LC)?
> Is that a model the mips ports should follow?

The m68k kernel FPE code just emulates registers, too. On m68k, You need FPU
operations to access registers, so this is easy.

Now, a real soft-float-compiled program would not access them at all...
but debuggers etc. trying to access them will still need the emulation in 
the kernel.

Regards,
	-is

-- 
 * Progress (n.): The process through which Usenet has evolved from
   smart people in front of dumb terminals to dumb people in front of
   smart terminals.  -- obs@burnout.demon.co.uk (obscurity)