From:	"John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: SIGSEV error numbers
Date:	Wed, 29 Jan 1997 19:11:58 -0800
Organization:	Two pounds of chaos and a pinch of salt
Lines:	31
Message-ID:	<32F0117E.7812@cs.com>
References:	<32ef52e4 DOT 266731 AT news DOT prestel DOT co DOT uk>
Reply-To:	fighteer AT cs DOT com
NNTP-Posting-Host:	ppp211.cs.com
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Luke Steele wrote:
> 
> Hi,
> When a djgpp compiled program crashes it usually quotes an error
> number.  Does a list of error codes and their definitions exist?
> Also, the contents of eip at the moment of the crash is displayed.  Is
> there an easy way that I can determine the point in my source code
> that the value of eip relates to?
> 
> Hope the questions make sense, and thanks for any help,

I am sure that one of the developers has a list of error codes around
somewhere, but the most commone one is code 006, indicating a NULL
pointer dereference.

To get a complete function-by-function crash traceback, use the 'symify'
program that accompanies the DJGPP distribution.  Type the following
with the traceback still be on the screen:

  symify myprog.exe

If you want to save the output, run symify with the '-o <outfile>'
switch.  Type "symify" for more info, or look it up in the DJGPP docs.

-- 
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| John M. Aldrich, aka Fighteer I  |        fighteer AT cs DOT com         |
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