It seems to me that kernel/cpu matching can be broken into two relatively
simple parts.
1 - Put a cpu "signature" in the kernel image indicating cpu requirements; and
2 - Have the bootloader (lilo) detect cpu type and match it against the cpu
"signature".
The bootloader would then load the kernel, or could give an informative
diagnostic.
David
At 06:59 PM 11/7/00, Jeff Garzik wrote:
>Sven Koch wrote:
> >
> > On Tue, 7 Nov 2000, David Lang wrote:
> >
> > > depending on what CPU you have the kernel (and compiler) can use
> different
> > > commands/opmizations/etc, if you want to do this on boot you have two
> > > options.
> >
> > Wouldn't it be possible to compile the parts of the kernel needed to
> > uncompress and to detect the cpu with lower optimizations and then abort
> > with an error message?
> >
> > "Error: Kernel needs a PIII" sounds much better than just stoping dead.
>
>I agree... maybe we can solve this simply by giving the CPU detection
>module the -march=i386 flag hardcoded, or editing the bootstrap, or
>something like that...
>
> Jeff
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