Re: How can I link the kernel with libgcc ?

[Carlos Munoz <carlos@kenati.com>]

Jes Sorensen wrote:

> > > > > > "Carlos" == Carlos Munoz <carlos@kenati.com> writes:
> > > > > >            
>
> Carlos> I figured out how to get the driver to use floating point
> Carlos> operations. I included source code (from an open source math
> Carlos> library) for the log10 function in the driver. Then I added
> Carlos> the following lines to the file arch/sh/kernel/sh_ksyms.c:
>
> Bad bad bad!
>
> You shouldn't be using floating point in the kernel at all! Most
> architectures do not save the full floating point register set on
> entry so if you start messing with the fp registers you may corrupt
> user space applications.
>
> You need to either write a customer user space app or use a table as
> Arjan suggested.
> E_OK
> Cheers,
> Jes
>  
Hi Jes,

I wasn't aware that floating point registers are not save. I guess I 
have no choice but to use a table.

Thanks,


Carlos Munoz
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