Date: Wed, 29 Aug 2001 16:34:26 -0700 From: Kris Kennaway <kris@obsecurity.org> To: clemensF <rabat@web.de> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: CPUTYPE and ports Message-ID: <20010829163426.D77273@xor.obsecurity.org> In-Reply-To: <20010830011735.D19000@spotteswoode.yi.org>; from rabat@web.de on Thu, Aug 30, 2001 at 01:17:35AM %2B0200 References: <20010819061017.92A3438FD@overcee.netplex.com.au> <20010821181752.V45276@mail.webmonster.de> <20010821130119.H17739@xor.obsecurity.org> <20010830011735.D19000@spotteswoode.yi.org>
next in thread | previous in thread | raw e-mail | index | archive | help
--hOcCNbCCxyk/YU74 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Aug 30, 2001 at 01:17:35AM +0200, clemensF wrote: > > Kris Kennaway: >=20 > > Look at <bsd.cpu.mk> - it's already trivial for the port to > > automatically enable this support based on MACHINE_CPU: the maintainer > > just hasn't done it yet. >=20 > how come AMD processors aren't supported (yet) bu gcc? Well, firstly, they are supported because they're backwards compatible with older intel CPUs. So I think you meant "how come AMD processor-specific optimizations aren't supported". Well, they still are: k5 and k6 specific optimizations are supported by gcc 2.95.x. I assume you really meant newer AMD processors such as the Athlon, to which the answer is: Because no-one wrote code to support AMD optimizers in gcc 2.95.x (code doesn't grow on trees ;-). I understand gcc 3.x supports optimization for the newer AMD chips; it will be imported into 5.0-CURRENT at some point, but may not make it back into 4.x because of the disruption involved. Kris --hOcCNbCCxyk/YU74 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE7jXwCWry0BWjoQKURArQ3AKDIo2SCUuhmRRLSG6r+FXl8SofDHQCgisw9 vMIadHhYHoo+zvPxni19wM0= =eieR -----END PGP SIGNATURE----- --hOcCNbCCxyk/YU74-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20010829163426.D77273>