Date: Fri, 14 Jan 2005 05:15:36 -0800 From: Kris Kennaway <kris@obsecurity.org> To: David Schultz <das@FreeBSD.org> Cc: cvs-all@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 Message-ID: <20050114131536.GA41709@xor.obsecurity.org> In-Reply-To: <200501140709.j0E79NTA046894@repoman.freebsd.org> References: <200501140709.j0E79NTA046894@repoman.freebsd.org>
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--UugvWAfsgieZRqgk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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 feupdateenv > at -O2 due to a WAR conflict between fnstsw and fldenv there. 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)? Kris --UugvWAfsgieZRqgk Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQFB58X4Wry0BWjoQKURAng6AKDy9w8uroTeVVGiZXGid6ApjLMW/ACgumIU Phoj4zD19xFB/tcBluzr20w= =KFuE -----END PGP SIGNATURE----- --UugvWAfsgieZRqgk--
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