Date: Fri, 24 Oct 2003 19:12:15 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Adam Carmichael <carneeki@hotmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Core dumps not containing Symbols Message-ID: <20031025021215.GA92086@rot13.obsecurity.org> In-Reply-To: <Law11-F104DabigPasS00013194@hotmail.com> References: <Law11-F104DabigPasS00013194@hotmail.com>
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--3V7upXqbjpZ4EhLz Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Oct 25, 2003 at 07:31:12AM +1000, Adam Carmichael wrote: > Greetings all, >=20 > I have a box that is dumping cores, and I would like to look into the=20 > matter further, but my output in gdb does not appear to contain symbols. >=20 > I modified GENERIC so that it contains the following line: > makeoptions DEBUG=3D-g >=20 > I have also tried with and without the following two options: > options DDB > options DDB_UNATTENDED > without success. >=20 > I read in Absolute BSD, and the FreeBSD Developers Handbook that my=20 > makeoptions line should be all that is required. >=20 > This code is from the 4-STABLE source at about 01:20 AEST, Sat Oct 25, 20= 03=20 > (about 15:20, Fri Oct 24 2003 UTC [sorry if I'm an hour out - I don't kno= w=20 > whether I subtract 10 hours or 11 hours for daylight savings/winter time]= ). >=20 > What other stages are there to get the relevant source to appear in gdb= =20 > when i run 'where'? You need to use the right kernel image. The installed kernel (/kernel) is stripped of debugging symbols. The kernel in /usr/src/sys/compile/WHATEVER/kernel.debug contains the debugging symbols and can be used with gdb -k. Kris --3V7upXqbjpZ4EhLz Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQE/mdv+Wry0BWjoQKURAqH+AJ417NarL43hJWllpCr05WaUwjQ36gCeLsJe qjPPt461/9cVHUezpZR6pq8= =rxDM -----END PGP SIGNATURE----- --3V7upXqbjpZ4EhLz--
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