From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by yocto-www.yoctoproject.org (Postfix, from userid 118) id 71BCCE00C7D; Tue, 4 Jun 2019 04:45:56 -0700 (PDT) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on yocto-www.yoctoproject.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 X-Spam-HAM-Report: * -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low * trust * [141.84.69.5 listed in list.dnswl.org] * -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's * domain * -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature * 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily * valid Received: from mail.stusta.mhn.de (mail.stusta.mhn.de [141.84.69.5]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id 6C3F9E0098A for ; Tue, 4 Jun 2019 04:45:55 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) by mail.stusta.mhn.de (Postfix) with ESMTPSA id 45J99F2gThz3L; Tue, 4 Jun 2019 13:45:53 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=stusta.de; s=default; t=1559648753; bh=D9vIcl7uvDAHye7eeq06NDYG9zwZI2wkyGNzQWa4Il4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mNytb2dyTXCMqKOn5GrQGhk1FHrBvGQX5AnWNXdFCDvU5ikOLGbCAjG+e75pxg0vM 66CHh33s8w4Q6bV/dALprhGo4WppslX6r+tD0phZXFms+gqJtqXl6zKKo56jA/xCpw 6WyIQ1psNghhCrFN7cpBZW9PpgWTZ3jJEtajYXbzCN7Hyj9h0bAplIotB0pcvbw8RK ZgXSs8QAwW1mTsGXGRpVYZTDBzIjXE+PZHQagvTzrBlzv5haeTUH4HCBFFaAO+PYU8 01YTcW69CUqBleNbIffVOaQOtQDIMLq0leGzaKmzWoYN4bSXG0eOAWwEda4xS++nV2 tarUf/sX6vlBuDLAMBNjmxWagRzT4cs2aplthRvrKp3pSB9CrmTiuOYCdEEKTgYfhS zjCFLtxC/kkfmvPuX3Q3aTIEVoFco6V3UrTDzpmWLIwYaOezHEK2J4U3W72UTvOunJ pdyXfg1EYI63tSLsB+0EwrPOcPQDiLnTrldSws3S0kwkfnIXdNAfh2ae64zPGAGGGH eEo3RryhP7d8BDJ3WjtHB95t4xuwEGwT4dC4HO8UMVgljjYtbQTv/Q/52c137jcE/s TUEettx+y9rltBETGYAQmWmKqk9Pi6f+YgE5UIhhKn01gZKMz5MleP4OYPs/yGGu+U ypWLusPoLJLfL7T96KeaxTBw= Date: Tue, 4 Jun 2019 14:45:51 +0300 From: Adrian Bunk To: Mauro Ziliani Message-ID: <20190604114551.GB2249@localhost> References: <7e9f634a-175f-1e49-2d80-da364686d077@faresoftware.it> MIME-Version: 1.0 In-Reply-To: <7e9f634a-175f-1e49-2d80-da364686d077@faresoftware.it> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: yocto@yoctoproject.org Subject: Re: How to disable SIMD extensions (mmx, sse3, ...)? X-BeenThere: yocto@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Discussion of all things Yocto Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Jun 2019 11:45:56 -0000 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline On Tue, Jun 04, 2019 at 09:08:49AM +0200, Mauro Ziliani wrote: > Hi all. Hi Mauro, > I'm working with a Geode LX800, porting an old application Debian-based into > Yocto Thud. I assume you are aware that the Geode LX is should still work with the latest Debian releases. > I need to disable some multimedia SIMD extensions for gcc compiler. Why do you want to also disable MMX? The AMD Geode LX does support MMX (and 3DNow!). > Where I can do this? > > I suppose I have to disable SIMD extensions in conf/machine/geode_lx800.conf > file (the machine descriptor file), but I cannot find any document about. > > Can you help me? Passing -march=geode to the compiler should enable exactly the instructions supported by the CPU. > MZ cu Adrian -- "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed