Kernel build parameter CONFIG_REGPARAM breaks binary modules
Alan Cox
alan at redhat.com
Wed Mar 17 14:38:52 UTC 2004
On Wed, Mar 17, 2004 at 12:47:13AM +0100, Earle Robert Nietzel wrote:
> Come to find out that in "arch/i386/Makefile":
>
> CFLAGS += -pipe -mregparm=3 -msoft-float -fno-builtin-sprintf -fno-
> builtin-log2 -fno-builtin-puts
>
> You'll notice "-mregparm=3"?
>
> After removing this compiler flag my binary modules began to load
> correctly.
>
> Anyone care to comment on this?
Your binary modules need to match the kernel. -mregparm=3 tells the
kernel to try and use registers for some of the argument passing, and
thus be more efficient
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