From owner-svn-src-head@FreeBSD.ORG Fri Mar 19 16:13:22 2010 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7EF051065673; Fri, 19 Mar 2010 16:13:22 +0000 (UTC) (envelope-from ivoras@gmail.com) Received: from mail-ww0-f54.google.com (mail-ww0-f54.google.com [74.125.82.54]) by mx1.freebsd.org (Postfix) with ESMTP id 943548FC23; Fri, 19 Mar 2010 16:13:21 +0000 (UTC) Received: by wwb18 with SMTP id 18so2029907wwb.13 for ; Fri, 19 Mar 2010 09:13:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:from:date:x-google-sender-auth:message-id:subject:to:cc :content-type:content-transfer-encoding; bh=Vqcp71Erky8pvUB+zFgbYCuYzj9LlHANH9DaKCYEUyM=; b=WM4X6a0AFPWVuKCek1doczckymQquer+RjNOIG7s4mMuZP4JZ616Snhi6KTIiDtPZ6 ChgatO8WDXfaZbs6JNDelpTifI3Fx8CRQ+90Js7Tgu19J3ua/KdmrNUJ38Pr5mGGRy8g X8AK7r41+BDg4ZkGzY7WaHLvTuq+fhsRUgexA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; b=weh4uj+ewbW1d8IZV6iem9SshtV0IueQzxqG9K2EG3FfBxn/aGmIu7soV+vYiYtHmd ahgKOIXlYKefMuv3faUDTg6ng0OOMV4BMoUmToldMK0Xx9zOiYZ6d+eKfdjavRaF4pp0 i5/GMW6nOFduSmJOS/Ky8suZ4j+qbxsUqxxWA= MIME-Version: 1.0 Sender: ivoras@gmail.com Received: by 10.216.87.12 with SMTP id x12mr661834wee.185.1269015200147; Fri, 19 Mar 2010 09:13:20 -0700 (PDT) In-Reply-To: <7d6fde3d1003182333m336d52fbh987035a21568250d@mail.gmail.com> References: <7d6fde3d1003182333m336d52fbh987035a21568250d@mail.gmail.com> From: Ivan Voras Date: Fri, 19 Mar 2010 17:13:00 +0100 X-Google-Sender-Auth: 3b8e725dd1619c2b Message-ID: <9bbcef731003190913k4f3afbd8mb4e767c40433be8e@mail.gmail.com> To: Garrett Cooper Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Xin LI Subject: Re: I486_CPU and I586_CPU removed from GENERIC kernel [was Re: svn commit: r205307 - head/sys/i386/conf] X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Mar 2010 16:13:22 -0000 On 19 March 2010 07:33, Garrett Cooper wrote: > On Thu, Mar 18, 2010 at 6:16 PM, Xin LI wrote: >> Author: delphij >> Date: Fri Mar 19 01:16:53 2010 >> New Revision: 205307 >> URL: http://svn.freebsd.org/changeset/base/205307 >> >> Log: >> =C2=A0SSE is enabled by default about 5 years ago so there is no point p= retending >> =C2=A0that we support I486 and I586 CPUs in the GENERIC kernel, users wa= nts these >> =C2=A0support would have to build a custom kernel to explicitly disable = SSE >> =C2=A0anyways. SSE in the userland you mean? Regardless, I don't think there is now reason for compiling everything as for i386. E.g. why not add at least -mtune=3Dgeneric or even also -march=3Di686 to default gcc options? http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html