From owner-freebsd-hackers@FreeBSD.ORG Sat Dec 29 11:12:08 2007 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 12C6016A420 for ; Sat, 29 Dec 2007 11:12:08 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from relay02.kiev.sovam.com (relay02.kiev.sovam.com [62.64.120.197]) by mx1.freebsd.org (Postfix) with ESMTP id B5A1B13C448 for ; Sat, 29 Dec 2007 11:12:07 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from [212.82.216.226] (helo=deviant.kiev.zoral.com.ua) by relay02.kiev.sovam.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.67) (envelope-from ) id 1J8Zbp-0001fr-JD; Sat, 29 Dec 2007 13:12:06 +0200 Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.2/8.14.2) with ESMTP id lBTBC45n071979; Sat, 29 Dec 2007 13:12:04 +0200 (EET) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.2/8.14.2/Submit) id lBTBC4PN071978; Sat, 29 Dec 2007 13:12:04 +0200 (EET) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Sat, 29 Dec 2007 13:12:04 +0200 From: Kostik Belousov To: Kip Macy Message-ID: <20071229111204.GX57756@deviant.kiev.zoral.com.ua> References: <47760132.5040306@pacific.net.sg> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="yaF1Lpws7ZTjdfU3" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-Scanner-Signature: e04e44772e0ad72f7751591e8aa1bd99 X-DrWeb-checked: yes X-SpamTest-Envelope-From: kostikbel@gmail.com X-SpamTest-Group-ID: 00000000 X-SpamTest-Info: Profiles 1975 [Dec 28 2007] X-SpamTest-Info: helo_type=3 X-SpamTest-Info: {received from trusted relay: not dialup} X-SpamTest-Method: none X-SpamTest-Method: Local Lists X-SpamTest-Rate: 0 X-SpamTest-Status: Not detected X-SpamTest-Status-Extended: not_detected X-SpamTest-Version: SMTP-Filter Version 3.0.0 [0255], KAS30/Release Cc: freebsd-hackers@freebsd.org, Ivan Voras Subject: Re: Architectures with strict alignment? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Dec 2007 11:12:08 -0000 --yaF1Lpws7ZTjdfU3 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Dec 29, 2007 at 12:14:11AM -0800, Kip Macy wrote: > Isn't it everything except x86? >=20 > -Kip x86 has the AC bit in the eflags. The AM bit in cr0 is enabled by the kernel, and AC could be switched on by LD_PRELOADed shared object. Last time I checked, our libc caused unaligned access in the locale initialization code. >=20 > On Dec 29, 2007 12:11 AM, Erich Dollansky wrote: > > Hi, > > > > > > Ivan Voras wrote: > > > Hi, > > > > > > Which of the architectures FreeBSD supports (if any) have strict memo= ry > > > alignment requirements? (in the sense that accessing a 32-bit integer > > > not aligned on a 32-bit address results in a hardware trap/exception). > > > > > isn't this the case with SPARC and Itanium? > > > > I know, they are 64 bits. > > > > Erich > > > > _______________________________________________ > > freebsd-hackers@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.o= rg" > > > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" --yaF1Lpws7ZTjdfU3 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFHdiuDC3+MBN1Mb4gRAhpFAJ4t8pvCovzvvKUdosenhqfiB2UoCQCgpwr5 rzLn4u+ifVnPM5T8y8nKs7Q= =4kFb -----END PGP SIGNATURE----- --yaF1Lpws7ZTjdfU3--