From:	"DeHackEd" <notgiven AT out DOT com>
Newsgroups:	comp.os.msdos.djgpp
References:	<36D7C305 DOT EA35B5C5 AT wxs DOT nl>
Subject:	Re: Symify: How to use it?
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Message-ID:	<ZqTB2.1313$j4.75@cabot.ops.attcanada.net>
Date:	Sat, 27 Feb 1999 14:37:45 GMT
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

It's in the FAQ somewhere, but here's the simplest way:

Compile your program but use "-g" on the command line on every call of GCC. When
your programs is made, run it and let it crash. As soon as you see the screen
dump use this example (made by me, not real):

Exiting due to SIGSEGV
General Protection fault at EIP=0x4f2a4f5

EAX=some large number
EBX=the square root of 2

Call frame traceback EIPs:
    0x1581a542
    0x4af81e28

C:\> symify program.exe

And next to the callback EIP you should see filenames and line numbers of where
execution stopped. This should help locate your problem (ie is a pointer
referenced and not checked for NULL?)

--
"DeHackEd"

My Email address in the header is fake (spammers). Email me at this address:

http://www.geocities.com/cgi-bin/homestead/mail.pl?dehacked

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