Messages in this thread | | | Subject | Re: Requested FAQ addition - Mandrake and partial-i686 platforms | From | Alan Cox <> | Date | 12 Aug 2003 17:17:18 +0100 |
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On Maw, 2003-08-12 at 15:48, Brandon Stewart wrote: > Apparently, there is an issue with glibc on versions less than 2.3.1-15 > (and maybe others), where it mistakenly treats CPUs as full i686 > compliant when they only execute a subset of the i686 instructions
VIA C3 has the full set of i686 required instructions. The whole story is a lot more complex
gcc i686 mode outputs cmov instruction sequences without checking cmov is present at runtime. So gcc "i686" is actually "i686 and a bit". It actually doesn't really make sense to do a true i686 mode without cmov either.
Red Hat's rpm knows about this so I'm suprised the Mandrake one gets it wrong and installs arch=686 packages without checking for cmov.
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