gcc options when building kernel

Kris Kennaway kris at obsecurity.org
Sun Jan 29 13:33:23 PST 2006

On Mon, Jan 30, 2006 at 08:27:29AM +1100, Norberto Meijome wrote:
> Hi all,
> I'm rebuilding my kernel and I noticed some gcc (I believe ) options 
> being used that I don't think I set anyway.
> The options are :
> -mno-mmx -mno-3dnow -mno-sse -mno-sse2
> Does this mean that the kernel won't make use of these cpu features, 
> even though they are supported by the cpu (see below)

Yes, since you *can't* use them in the FreeBSD kernel.  google for
more discussion.

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