Re: gcc, floating point and linux kernel module

christophe barbe wrote:

I'm compiling a kernel module for the linux 2.2.18 on a PPC target (MPC750)
with the following gcc :
gcc version egcs-2.91.66 19990314 (egcs-1.1.2 release)

The resulting object uses FPU opcode to do optimization for 64 bits
variables. I've add at the end of this mail the command line to compile one
of the object included in the module which uses FPU, the guilty part of the
code and the generated asm.

It's a bad thing to use FPU in the kernel mode (under linux), so my question
is is there a way to turn of FPU usage ?

arch/ppc/Makefile uses -msoft-float.


Michel


--
Earthling Michel Dänzer (MrCooper)  \  CS student and free software enthusiast
Debian GNU/Linux (powerpc,i386) user \   member of XFree86 and The DRI Project

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