Re: i686 quirk for AMD Geode

[H. Peter Anvin]

On 10/04/2009 07:58 AM, Alan Cox wrote:
>> I'm surprised that "i686" in debian depends on the family flag
>> in /proc/cpuinfo.. but hey.. weirder things have been done.
> 
> Its compensating for the old gcc bugs where gcc "i686" generated cmov
> instructions without any checks whether the CPU supported cmov (which is
> optional for a 686 architecture)
> 
> RPM has (or had) similar hacks. Both arguably come about from fundamental
> design thinkos in that they treat architecture as "special", not simply
> as a set of dependancies (needs x86, x86-cmov, glibc x86-32, ...) as
> should hve been done and which would also have made emulators just work
> out of the box instead of the current mess.
> 
> Alan

Well, for gcc, the string "i686" really means "pentiumpro".  All of
these are nothing but named feature sets.

	-hpa
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