Date: Fri, 22 Oct 2010 10:52:53 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Marcel Moolenaar <xcllnt@mac.com> Cc: freebsd-current@freebsd.org, Anton Shterenlikht <mexas@bristol.ac.uk>, freebsd-ia64@freebsd.org Subject: Re: multiple problems between r212316 and r212643 on ia64 Message-ID: <20101022075253.GD2392@deviant.kiev.zoral.com.ua> In-Reply-To: <94486EC3-6BBB-4830-A95B-B3ACAC25B724@mac.com> References: <20100915152353.GA45611@mech-anton240.men.bris.ac.uk> <5667FD77-8DBC-4638-80B6-67BCF9D4FB29@mac.com> <20100916105704.GB51787@mech-anton240.men.bris.ac.uk> <94486EC3-6BBB-4830-A95B-B3ACAC25B724@mac.com>
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--0IJx3QbyLjjHpPuQ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Oct 21, 2010 at 09:44:58PM -0700, Marcel Moolenaar wrote: >=20 > On Sep 16, 2010, at 3:57 AM, Anton Shterenlikht wrote: > >>>=20 > >>> % man ls > >>> zcat: /usr/share/man/cat1/ls.1.gz already has .gz suffix -- unchanged > >>> % man man > >>> zcat: /usr/share/man/cat1/man.1.gz already has .gz suffix -- unchanged > >>>=20 > >>> # cd /etc/mail > >>> # make start > >>> Starting: sendmail-submitmailwrapper: no mapping in /etc/mail/mailer.= conf > >>> sendmail-clientmqueuemailwrapper: no mapping in /etc/mail/mailer.conf > >>> . > >>> #=20 > >>>=20 > >>> # cd /usr/src > >>> # svn up > >>> svn: Can't open file '/usr/local/etc/subversion/servers': Illegal byt= e sequence > >>> #=20 > >>>=20 >=20 > This is now fixed (revision 214194). >=20 > >From the commit log: >=20 > With r169630 I disabled symbol versioning because it broke rtld. With > r211706 rtld got broken for ia64 & powerpc64. It was fixed for powerpc64 > with r212497. In between, r211749 removed the exports table because the > version script handled the exports. But wait, symbol versioning was > disabled on ia64. Doh. >=20 > With exports controlled by the version script and symbol versioning > disabled, all symbols are exported and too many symbols bind to the > definition in rtld. Let's just say that waird things happen. >=20 > So, enable symbol versioning on ia64 and apply a work-around for the > SIGSEGV that triggered r169630 to begin with: when rtld relocates > itself, it comes across r_debug_state and for some reason can't find the > definition. This causes a failure, relocation aborts and null pointers > galore. The work-around is to ignore the missing definition when rtld > is relocating itself and keep going. >=20 > Maybe with the next binutils this will all go away. Maybe not, in > which case I still need to figure out why r_debug_state cannot be found. >=20 > BTW: r_debug_state is in the symbol map -- I don't think any other rtld > symbols that rtld references are in the symbol map... Thank you for tracking it. I will wait for your merge of the revision to RELENG_8 before synchronizing rtld with HEAD. --0IJx3QbyLjjHpPuQ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEARECAAYFAkzBQtQACgkQC3+MBN1Mb4hPQQCg7ALj+q0WTmzUSVlrUJeOMjZk vNMAnRPvIZ9b+5PuDmCtVnmAXm1Uwogu =gb1o -----END PGP SIGNATURE----- --0IJx3QbyLjjHpPuQ--
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