Date: Sun, 29 Jan 2006 16:33:22 -0500 From: Kris Kennaway <kris@obsecurity.org> To: Norberto Meijome <freebsd@meijome.net> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: gcc options when building kernel Message-ID: <20060129213322.GA89801@xor.obsecurity.org> In-Reply-To: <43DD3341.4070103@meijome.net> References: <43DD3341.4070103@meijome.net>
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--3MwIy2ne0vdjdPXF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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=20 > being used that I don't think I set anyway. >=20 > The options are : > -mno-mmx -mno-3dnow -mno-sse -mno-sse2 >=20 > Does this mean that the kernel won't make use of these cpu features,=20 > 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. Kris --3MwIy2ne0vdjdPXF Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFD3TShWry0BWjoQKURAj7rAJ9OX5l+3eLOMYLN64xd/OI6jGSqPACg4Fw/ gFfOo51yorcrZqaYBryAoEM= =3hOh -----END PGP SIGNATURE----- --3MwIy2ne0vdjdPXF--
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