From nobody@FreeBSD.org Wed Aug 6 12:20:08 2008 Return-Path: Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A163D1065670 for ; Wed, 6 Aug 2008 12:20:08 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id 87BA98FC26 for ; Wed, 6 Aug 2008 12:20:08 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.2/8.14.2) with ESMTP id m76CK7OI027588 for ; Wed, 6 Aug 2008 12:20:07 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.2/8.14.1/Submit) id m76CK74K027587; Wed, 6 Aug 2008 12:20:07 GMT (envelope-from nobody) Message-Id: <200808061220.m76CK74K027587@www.freebsd.org> Date: Wed, 6 Aug 2008 12:20:07 GMT From: Paul Wootton To: freebsd-gnats-submit@FreeBSD.org Subject: Add missing -mno-sse3 flag for AMD64 to /usr/src/sys/conf/kern.mk X-Send-Pr-Version: www-3.1 X-GNATS-Notify: >Number: 126300 >Category: kern >Synopsis: [build] [patch] Add missing -mno-sse3 flag for AMD64 to /usr/src/sys/conf/kern.mk >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: closed >Quarter: >Keywords: >Date-Required: >Class: update >Submitter-Id: current-users >Arrival-Date: Wed Aug 06 12:30:01 UTC 2008 >Closed-Date: Mon May 16 14:44:19 UTC 2011 >Last-Modified: Mon May 16 14:44:19 UTC 2011 >Originator: Paul Wootton >Release: FreeBSD 7.0-STABLE >Organization: >Environment: FreeBSD demophon.fletchermoorland.co.uk 7.0-STABLE FreeBSD 7.0-STABLE #11: Wed Aug 6 11:48:04 BST 2008 paul@demophon.fletchermoorland.co.uk:/usr/obj/usr/src/sys/DEMOPHON amd64 >Description: Added the missing -mno-sse3 flag to the amd64 section in the /usr/src/sys/conf/kern.mk file I know this is a duplicate of kern/123518 and kern/124463 but 1) kern/123518 has now been open since 8 May 2008 2) kern/124463 was closed as it was a duplicate of kern/123518, yet the fixed has not been MFCed Is there any reason why this can not be MFCed for the AMD64 platform >How-To-Repeat: >Fix: in /usr/src/sys/conf/kern.mk Change .if ${MACHINE_ARCH} == "amd64" CFLAGS+= -mcmodel=kernel -mno-red-zone \ - -mfpmath=387 -mno-sse -mno-sse2 -mno-mmx -mno-3dnow \ + -mfpmath=387 -mno-sse -mno-sse2 -mno-sse3 -mno-mmx -mno-3dnow >Release-Note: >Audit-Trail: From: David Schultz To: Paul Wootton Cc: bug-followup@FreeBSD.ORG Subject: Re: kern/126300: Add missing -mno-sse3 flag for AMD64 to /usr/src/sys/conf/kern.mk Date: Wed, 6 Aug 2008 12:03:01 -0400 On Wed, Aug 06, 2008, Paul Wootton wrote: > Added the missing -mno-sse3 flag to the amd64 section in the /usr/src/sys/conf/kern.mk file [...] > .if ${MACHINE_ARCH} == "amd64" > CFLAGS+= -mcmodel=kernel -mno-red-zone \ > - -mfpmath=387 -mno-sse -mno-sse2 -mno-mmx -mno-3dnow \ > + -mfpmath=387 -mno-sse -mno-sse2 -mno-sse3 -mno-mmx -mno-3dnow Just out of curiosity, why do you believe this is needed? I'm pretty sure -mno-sse implies -mno-sse3 automatically, and likewise for -mno-sse2. If this weren't the case, then all hell would break loose when the kernel started using xmm registers. State-Changed-From-To: open->closed State-Changed-By: jh State-Changed-When: Mon May 16 14:44:18 UTC 2011 State-Changed-Why: Only -no-sse is used since r221879. It disables also SSE3. http://www.freebsd.org/cgi/query-pr.cgi?pr=126300 >Unformatted: