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SubjectRe: problem using integer division in kernel modules
Matti Aarnio wrote:
>
> On Wed, Jan 15, 2003 at 07:41:29PM +0100, Thomas Schlichter wrote:
> > Hi,
> >
> > I am writing at a small kernel module and have a problem now using / and %. If
> > I do so I get following unresolved symbols when the module should be loaded:
> > __divdi3
> > __moddi3
>
> 64-bit division with non-constant non-power-of-two divider.
>
> > Could you please help me and tell me what I do wrong..?
>
> The kernel is linked without gcc builtin libraries.
> Reasons can be found from FAQ (see footer), or archives.

You may want to check out .../include/asm-???/div64.h. It
allows some limited divides with 64-bit numbers. Look at
several so you understand what it does and does not do.

-g
>
> /Matti Aarnio
> -
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