2007/12/3, Andreas Hofer <[EMAIL PROTECTED]>:
> Hi all,
>
> I want to install LFS on a Vortex86SX controller produced by the
> taiwanese company DMP. Its instruction set is claimed to be 100%
> compatible to i486SX, thus lacking floating point instructions and
> anything beyond a 486.
>
> First thing I tried was boot the live CD on that thing but the kernel
> crashes very soon. So I want to sort of cross build LFS for the
> Vortex86SX on my notebook (Core2Duo 1.6GHz Ubuntu 7.10).
>
> Question: Is that possible and how? What do I have to do that the
> binaries incl. tool chain will run on the target?
It's not that difficult.
First of all you probably need the math emulation from the kernel.
That way linux can use the floating point instructions which some apps
probably need.
After that optimize everything for i386 or i486 (see gcc optimization
manual) on your core 2 duo. The compiled binaries can run both on your
core 2 duo and on your 486 so no need to cross compile!
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