On Mon, 2007-09-17 at 19:36 +0530, Ram wrote: > Hi, > > I am trying to write a driver which uses double, float. I am using > an arm11 with gcc 3.4.4 > > When i try to compile my modules (with float variables) i get the error > > WARNING: "__extendsfdf2" undefined! > WARNING: "__mulsf3"undefined! > WARNING: "__fixsfsi"undefined! > WARNING: "__floatsisf"undefined! > > Can we use float, double in kernel modules?. > > Obviously it is a linking error, I am using soft-float. I tried with > -msoft-float but got the same result. > > I suspect that its a toolchain issue. However i am able to compile > my applications > with float, double variables. > > > Please do advice. > > > Regards, > sriram > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
Feel free to peruse the Documentation directory before posting. More specifically, Documentation/DocBook/kernel-hacking.tmpl has a chapter called 'Some Basic Rules' which addresses your question. Trond - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
