How can I link the kernel with libgcc ?

Carlos Munoz
2006-03-10T01:39:41Z

Hi all,

I'm writing an audio driver and the hardware requires floating point
arithmetic. When I build the kernel I get the following errors at link
time:

*** Warning: "__subdf3" [sound/sh/siu_sh7343.ko] undefined!
*** Warning: "__muldf3" [sound/sh/siu_sh7343.ko] undefined!
*** Warning: "__divdf3" [sound/sh/siu_sh7343.ko] undefined!
*** Warning: "__adddf3" [sound/sh/siu_sh7343.ko] undefined!

These symbols are coming from gcc. What I would like to do is link the
kernel with libgcc to solve this errors. I'm looking at the kernel
makefiles and it doesn't seem obvious to me how to do it. Does anyone
know how I can link the kernel with libgcc, or point me in the right
direction ?

By the way this is for the Renesas SH7343 processor.

Thanks,

Carlos Munoz