Article View: borland.public.cppbuilder.nativeapi
Article #17473Re: access violation
From: Michel Corbin
Date: Wed, 12 Mar 2003 13:16
Date: Wed, 12 Mar 2003 13:16
49 lines
2611 bytes
2611 bytes
Hello,
Thanks very much for all this information.
> BCB can generate .map file for your project with functions names and their
> addresses -
my map file begins with :
Start Length Name Class
0001:00401000 0000239BEH _TEXT CODE
0002:00425000 00000AEA4H _DATA DATA
0003:0042FEA4 000000264H _BSS BSS
0004:00000000 0000000A4H _TLS TLS
what are BSS and TLS Classes ?
> section address ('CODE')+ RVA. Function that cause exception will have
> biggest
> address <= EIP, obviously. This itself will give you a clue.
The problem is that all the adresses in the map file are very low in
comparison
with the address (00422033) where the exception occured.
> I would recommend to set your own UnhandledExceptionFilter( ... ) and dump
> call tree for
> exception in it - having EBP with stack frame address you can "unwind"
> stack, because value
> at this address is pointer to a previous stack frame and next value is
> caller address and so
> on. I use this for exception handling in general - my exception class
> generates stack
> trace with all relevant information. It's very useful for remote debugging,
> like in your case.
To do that, I have to read and understand a lot of things,
Must I use SetUnhandledExceptionFilter to achieve that ?
Is it necessary to change
the
try{ }
catch (Exception &exception)
{
Application->ShowException(&exception);
}
of the main file written by BCB into something like :
__try{ }
__except( ){ }
Best regards
Michel Corbin
Technical Details
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10cc67,16758dfd28526654 X-Google-Attributes: gid10cc67,public X-Google-ArrivalTime: 2003-03-12 12:48:06 PST Message-ID: <3E6F3321.D563CE7A@libertysurf.fr> Date: Wed, 12 Mar 2003 14:16:17 +0100 From: Michel Corbin <corbin.michel@libertysurf.fr> X-Mailer: Mozilla 4.7 [fr] (Win95; U) X-Accept-Language: fr,en,es-ES,it,de-DE,pt MIME-Version: 1.0 Newsgroups: borland.public.cppbuilder.nativeapi Subject: Re: access violation References: <3E6D03CA.8ED100AA@libertysurf.fr> <3e6d1849$1@newsgroups.borland.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Host: 212.47.231.254 X-Trace: newsgroups.borland.com 1047475230 212.47.231.254 (12 Mar 2003 05:20:30 -0800) Lines: 49 Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-03!sn-xit-01!sn-xit-09!supernews.com!news.maxwell.syr.edu!newsfeed.wirehub.nl!news.kweb.on.ca!KWeb!newsgroups.borland.com!not-for-mail