Core dumps not containing Symbols

[Kris Kennaway]

On Sat, Oct 25, 2003 at 07:31:12AM +1000, Adam Carmichael wrote:
> Greetings all,
> 
> I have a box that is dumping cores, and I would like to look into the 
> matter further, but my output in gdb does not appear to contain symbols.
> 
> I modified GENERIC so that it contains the following line:
> makeoptions DEBUG=-g
> 
> I have also tried with and without the following two options:
> options DDB
> options DDB_UNATTENDED
> without success.
> 
> I read in Absolute BSD, and the FreeBSD Developers Handbook that my 
> makeoptions line should be all that is required.
> 
> This code is from the 4-STABLE source at about 01:20 AEST, Sat Oct 25, 2003 
> (about 15:20, Fri Oct 24 2003 UTC [sorry if I'm an hour out - I don't know 
> whether I subtract 10 hours or 11 hours for daylight savings/winter time] ).
> 
> What other stages are there to get the relevant source to appear in gdb 
> 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
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