From owner-cvs-src@FreeBSD.ORG Fri Jan 14 13:28:30 2005 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 87B3A16A4CE; Fri, 14 Jan 2005 13:28:30 +0000 (GMT) Received: from obsecurity.dyndns.org (CPE0050040655c8-CM00111ae02aac.cpe.net.cable.rogers.com [69.199.47.57]) by mx1.FreeBSD.org (Postfix) with ESMTP id 33B9043D31; Fri, 14 Jan 2005 13:28:30 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 57822513CE; Fri, 14 Jan 2005 05:28:29 -0800 (PST) Date: Fri, 14 Jan 2005 05:28:29 -0800 From: Kris Kennaway To: Kris Kennaway , src-committers@FreeBSD.ORG, cvs-src@FreeBSD.ORG, cvs-all@FreeBSD.ORG Message-ID: <20050114132829.GA42958@xor.obsecurity.org> References: <200501140709.j0E79NTA046894@repoman.freebsd.org> <20050114131536.GA41709@xor.obsecurity.org> <20050114132433.GA97735@VARK.MIT.EDU> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="9jxsPFA5p3P2qPhR" Content-Disposition: inline In-Reply-To: <20050114132433.GA97735@VARK.MIT.EDU> User-Agent: Mutt/1.4.2.1i cc: amd64@FreeBSD.org Subject: Re: cvs commit: src/lib/msun/alpha fenv.h src/lib/msun/amd64 fenv.h src/lib/msun/arm fenv.h src/lib/msun/i387 fenv.h src/lib/msun/ia64 fenv.h src/lib/msun/powerpc fenv.h src/lib/msun/sparc64 fenv.h X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Jan 2005 13:28:30 -0000 --9jxsPFA5p3P2qPhR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jan 14, 2005 at 08:24:33AM -0500, David Schultz wrote: > On Fri, Jan 14, 2005, Kris Kennaway wrote: > > On Fri, Jan 14, 2005 at 07:09:23AM +0000, David Schultz wrote: > > > das 2005-01-14 07:09:23 UTC > > >=20 > > > FreeBSD src repository > > >=20 > > > Modified files: > > > lib/msun/alpha fenv.h=20 > > > lib/msun/amd64 fenv.h=20 > > > lib/msun/arm fenv.h=20 > > > lib/msun/i387 fenv.h=20 > > > lib/msun/ia64 fenv.h=20 > > > lib/msun/powerpc fenv.h=20 > > > lib/msun/sparc64 fenv.h=20 > > > Log: > > > Mark all inline asms that read the floating-point control or status > > > registers as volatile. Instructions that *wrote* to FP state were > > > already marked volatile, but apparently gcc has license to move > > > non-volatile asms past volatile asms. This broke amd64's feupdatee= nv > > > at -O2 due to a WAR conflict between fnstsw and fldenv there. > >=20 > > Do you think this is likely to the cause of the build failures > > reported with a number of ports when world is compiled with -O2 > > (i.e. does the feupdateenv failure cascade to other commonly-used > > parts of the code)? >=20 > No, this would lead to a runtime failure, and I would be surprised > if very many ports use fenv.h anyway. OK :-( Someone needs to revert amd64 back to using -O in the meantime, then. Kris --9jxsPFA5p3P2qPhR Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQFB58j9Wry0BWjoQKURAujtAKDEY/GK83bMoFUVqRS9rvFwSSFaigCeINV3 1kUtm2an2QXE1THaKSWLUwI= =7XcG -----END PGP SIGNATURE----- --9jxsPFA5p3P2qPhR--