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Re: config option vs. run-time detection (the debate continues ...)

To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Subject: Re: config option vs. run-time detection (the debate continues ...)
From: Jun Sun <jsun@mvista.com>
Date: Fri, 09 Feb 2001 11:59:18 -0800
Cc: "Kevin D. Kissell" <kevink@mips.com>, linux-mips@oss.sgi.com
References: <Pine.GSO.3.96.1010209123643.4645B-100000@delta.ds2.pg.gda.pl>
Sender: owner-linux-mips@oss.sgi.com
"Maciej W. Rozycki" wrote:
> 
>  But the code that needs to know whether there is a real FPU present is
> indeed minimal (as it should be) thus the gain from removing the detection
> altogether in favour to a config option is at least questionable if not
> insane.
> 

Do you like run-time detection better because it allows a kernel to run on
CPUs both with a FPU and without a FPU?  Or there is something else to it?

Another question.  I know with mips32 and mips64 we can do run-time detection
reliably.  What about other existing processors?

Jun

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