From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [80.91.229.2] (helo=ciao.gmane.org) by linuxtogo.org with esmtp (Exim 4.69) (envelope-from ) id 1JW57r-0004uK-8S for openembedded-devel@openembedded.org; Mon, 03 Mar 2008 08:30:21 +0100 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1JW56j-00063C-Rd for openembedded-devel@openembedded.org; Mon, 03 Mar 2008 07:29:09 +0000 Received: from s55917625.adsl.wanadoo.nl ([85.145.118.37]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 03 Mar 2008 07:29:09 +0000 Received: from koen by s55917625.adsl.wanadoo.nl with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 03 Mar 2008 07:29:09 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: openembedded-devel@openembedded.org From: Koen Kooi Date: Mon, 03 Mar 2008 08:29:04 +0100 Message-ID: References: <1204494435.17068.23.camel@utx.utx.cz> Mime-Version: 1.0 X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: s55917625.adsl.wanadoo.nl User-Agent: Thunderbird 2.0.0.12 (Macintosh/20080213) In-Reply-To: <1204494435.17068.23.camel@utx.utx.cz> X-Enigmail-Version: 0.95.6 Sender: news X-SA-Exim-Connect-IP: 80.91.229.2 X-SA-Exim-Mail-From: gcho-openembedded-devel@m.gmane.org X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on serenity X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=AWL,RDNS_NONE autolearn=no version=3.2.3 X-SA-Exim-Version: 4.2.1 (built Tue, 21 Aug 2007 23:39:36 +0000) X-SA-Exim-Scanned: Yes (on linuxtogo.org) Subject: Re: iwwmmxt optimization and soft float in OE on PXA270 X-BeenThere: openembedded-devel@lists.openembedded.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: openembedded-devel@lists.openembedded.org List-Id: Using the OpenEmbedded metadata to build Distributions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Mar 2008 07:30:21 -0000 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Stanislav Brabec schreef: | It should be the best possible optimization for PXA270 (compiled for | iwmmxt, use soft float instead of exception based kernel driver, use -Os | to make binaries as small as possible and add optimizations from -O3). Angstrom already enables softfloat (for FPU-less systems) and -Os by default *and* enables iwmmxt (if you have MACHINE_FEATURES = "iwmmxt") for apps which have been proven to benefit from iwmmxt (e.g. mplayer). I still get mysterious segfaults when running an all iwmmxt glibc system (uclibc is even worse), so I don't think flipping the global switch is a good idea. regards, Koen -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Darwin) iD8DBQFHy6jAMkyGM64RGpERAsGmAKCQBrKr7a0LdUqRStpIDORkk+qS9wCgmmQv ymohRaCAWpT3vX88U2/vSaI= =83mT -----END PGP SIGNATURE-----