[fedora-arm] ARMv7 rootfs/repository?

omalleys at msu.edu omalleys at msu.edu
Wed Dec 22 17:11:13 UTC 2010

Quoting Gordan Bobic <gordan at bobich.net>:

> What about kernel level FPU emulation? Is there such a thing? I could
> have sworn there used to be something that could be used as such. And it
> might be possible to make it quite transparent if it isn't required (so
> you can always have it in the kernel). Have the kernel trap the
> exception on the missing FPU instructions, save state, and then pass the
> to an emulation library. When that returns, restore state and resume.

There is already kernel level fpu emulation for x86 and there is  
already vfp, fpu, and even neon in qemu.  While I don't think it would  
be trivial to do, it doesn't sound quite as hard because you aren't  
going to have to reverse engineer the whole thing. I'm not  
volunteering either as I assume you mean -working- fpu/vfp support. :)

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