[lug] Stack trace question

[Dan Wilson]

Thanks I look into that.

Dan


>From: "D. Stimits" <stimits at idcomm.com>
>Reply-To: lug at lug.boulder.co.us
>To: lug at lug.boulder.co.us
>Subject: Re: [lug] Stack trace question
>Date: Fri, 18 Aug 2000 18:00:37 -0600
>
>I've found something that may be relevant to your application. It is
>actually about stack overflow attacks, but what you are wanting to
>determine is very closely related in technology. Check out:
>http://www.bell-labs.com/org/11356/libsafe.html
>
>It is an interesting middle ground between security, debugging, and just
>interesting from the geek view.
>
>Dan Wilson wrote:
> >
> > D. Stimits
> >
> > >references. One can disassemble almost anything, but it doesn't
> > >necessarily get you anywhere in terms of useful information. So one big
> > >question is whether tracing is going to be a one-way or two-way thing.
> > >Do unknown functions have to get info from yours, or does yours have to
> > >get info from others?
> > >
> > This is one way. just myfunction() from myfunction.so will examine
> > the stack and associated modules.
> >
> > I think I am much closer to finding my answer.  If I get the pid I can
> > look at /proc/pid/maps which tells me which modules are loaded and 
>where.
> > Now I just need to get the stack from myfunction() to the top and see
> > where each function lands in the range that I have from /proc/pid/maps.  
>So
> > my question is now only how do
> > I get the stack trace.  I need the address. I think I must write an 
>assembly
> > code to walk through the stack.
> >
> > Thanks
> > Dan
> >
> > Thanks
> > Dan
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