From owner-freebsd-current@FreeBSD.ORG Fri Aug 26 06:41:58 2011 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 550D2106566B for ; Fri, 26 Aug 2011 06:41:58 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from asmtpout026.mac.com (asmtpout026.mac.com [17.148.16.101]) by mx1.freebsd.org (Postfix) with ESMTP id 3E1C38FC0C for ; Fri, 26 Aug 2011 06:41:58 +0000 (UTC) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; CHARSET=US-ASCII Received: from [17.153.16.7] by asmtp026.mac.com (Oracle Communications Messaging Exchange Server 7u4-20.01 64bit (built Nov 21 2010)) with ESMTPSA id <0LQI00EXAT5L7Y10@asmtp026.mac.com> for freebsd-current@freebsd.org; Thu, 25 Aug 2011 22:41:47 -0700 (PDT) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.4.6813,1.0.211,0.0.0000 definitions=2011-08-26_01:2011-08-26, 2011-08-26, 1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 ipscore=0 suspectscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx engine=6.0.2-1012030000 definitions=main-1108250348 From: Chuck Swiger In-reply-to: <003d01cc638a$ef75c050$ce6140f0$@com> Date: Thu, 25 Aug 2011 22:41:45 -0700 Message-id: References: <003d01cc638a$ef75c050$ce6140f0$@com> To: Pegasus Mc Cleaft X-Mailer: Apple Mail (2.1084) Cc: freebsd-current@freebsd.org Subject: Re: Console problem with ALT-F# keys X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Aug 2011 06:41:58 -0000 Hi-- On Aug 25, 2011, at 5:56 PM, Pegasus Mc Cleaft wrote: > I am running FreeBSD 9.0-BETA1 r225125 compiled with LLVM on a Xeon > processor (CPUTYPE=core2 and CFLAGS= -mmmx -msse -msse2 -msse3 -O2 > -fno-strict-aliasing -pipe) The FreeBSD kernel doesn't use MMX or SSE by explicit design choice. See sys/conf/kern.mk: # [ ... ] Explicitly prohibit the use of SSE and other SIMD # operations inside the kernel itself. These operations are exclusively # reserved for user applications. # .if ${MACHINE_ARCH} == "i386" && ${CC} != "icc" CFLAGS+= -mno-align-long-strings -mpreferred-stack-boundary=2 \ -mno-mmx -mno-3dnow -mno-sse -mno-sse2 INLINE_LIMIT?= 8000 .endif Trying to override the default compiler flags to force it to use MMX/SSE is simply not going to work. Regards, -- -Chuck