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Date:      Thu,  8 Apr 1999 18:29:41 -0400 (EDT)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        paul@originative.co.uk
Cc:        simokawa@sat.t.u-tokyo.ac.jp, dfr@nlsystems.com, freebsd-alpha@FreeBSD.ORG
Subject:   RE: _start or __start?
Message-ID:  <14093.11304.145065.519608@grasshopper.cs.duke.edu>
In-Reply-To: <A6D02246E1ABD2119F5200C0F0303D10FEA6@octopus>
References:  <A6D02246E1ABD2119F5200C0F0303D10FEA6@octopus>

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paul@originative.co.uk writes:
 > > Darn!  I'd forgotten about this..  My gdb only works interactively for
 > > user programs.
 > > 
 > > As to where the problem is, I have no clue.  That's why I never fixed
 > > it. 
 > 
 > Ahh, that explains why I couldn't use it to do postmortem analysis then!

You can't use it for postmortem analysis of user programs, but it
*should* work for postmortem analysis of kernel crashdumps. 
The code that writes these two types of core files is totally
different.  I've had problems getting a proper stack trace out if it
(sometimes it works, sometimes it doesn't, and I'm not good enough at
hacking gdb to know how to fix it or even what's wrong), but you
should be able to get a valid crashdump and at least look at global
variables.  In the worst case, you should at least be able to get a
trace with ddb on the way down.

I'm eagerly looking forward to somebody with a clue getting gdb
working on alphas... 

Drew

------------------------------------------------------------------------------
Andrew Gallatin, Sr Systems Programmer	http://www.cs.duke.edu/~gallatin
Duke University				Email: gallatin@cs.duke.edu
Department of Computer Science		Phone: (919) 660-6590


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