Date: Sun, 4 Dec 2011 22:25:19 +0200 From: Kostik Belousov <kostikbel@gmail.com> To: Yamagi Burmeister <lists@yamagi.org> Cc: freebsd-current@freebsd.org, julian@elischer.org Subject: Re: running old binaries on -current Message-ID: <20111204202519.GL50300@deviant.kiev.zoral.com.ua> In-Reply-To: <20111204205427.f0989300.lists@yamagi.org> References: <4C2E2BFD.1030204@elischer.org> <20100702184426.GW13238@deviant.kiev.zoral.com.ua> <20111204205427.f0989300.lists@yamagi.org>
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--Ob1se4syEfB7Ey0C Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Dec 04, 2011 at 08:54:27PM +0100, Yamagi Burmeister wrote: > On Fri, 2 Jul 2010 21:44:26 +0300 > Kostik Belousov <kostikbel@gmail.com> wrote: >=20 > > On Fri, Jul 02, 2010 at 11:12:13AM -0700, Julian Elischer wrote: > > > every now and then, for fun I run up a chroot of freebsd 1.1. or 1.0= =20 > > > under a chroot. Usually hillarity ensues with teh 15 second kernel= =20 > > > compile and the 4 minute make world. > > >=20 > > > in -current I can't do that any more.. any binary just exits with 'Ab= ort'. > > >=20 > > > I think I last tried it in 7.0 or there abouts. > > >=20 > > > I have options COMPAT_AOUT and COMPAT_FREEBSD4 through COMPAT_FREEBSD7 > > >=20 > > > does anyone else have any ideas as to what may be needed? > > >=20 > > > I vaguely remember another option but I am not seeing it at the momen= t. > > >=20 > > > For those of you who do not remember, 1.0 had a.out static binaries o= nly. > > >=20 > >=20 > > Can you ktrace/kdump the run attempt, I suspect that abort is > > sent by image activator. > >=20 > > Also, please put some static binary somewhere to download. >=20 > Hi, > digging around I found one of the first programs ever written. It's an > static aout binary from 1994 or so, running it on FreeBSD 8.2 shows > exactly this problem. Some more extensive tests narrowed this problem > down to FreeBSD 1.x binaries, they're all broken. FreeBSD 2 aout > binaries are still working.=20 > Since Google found this rather old thread I decided to provide the data > your requested, but I do not insist on a fix. I guess that nobody will > try to run FreeBSD 1.x binaries these day... So if you want to spend > some work on this I'll test patches but if you decide to do nothing > it's okay. >=20 > This is the /bin/sh of FreeBSD 1.0 (taken from the official > installation cd image f?r i386): >=20 > % file sh > sh: VAX demand paged pure executable >=20 > % ./sh > Abort >=20 > The ktrace / kdump: > 1065 ktrace RET ktrace 0 > 1065 ktrace CALL execve(0xbfbfee1b,0xbfbfecf8,0xbfbfed00) > 1065 ktrace NAMI "./sh" >=20 > I've uploaded the binary to: > http://deponie.yamagi.org/freebsd/tmp/sh_freebsd1 Try to set sysctl security.bsd.map_at_zero to 1. --Ob1se4syEfB7Ey0C Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAk7b1y8ACgkQC3+MBN1Mb4ilFACfZFf4LqqRqcI08qX8bGWNXtaD 3swAoK18yYuQh5Ut8gqJU+pYnPr6uhYZ =MNsE -----END PGP SIGNATURE----- --Ob1se4syEfB7Ey0C--
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