Message-ID: <419A8A27.3040102@verizon.net>
Date: Tue, 16 Nov 2004 18:15:51 -0500
From: Jim Nelson <james4765@verizon.net>
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To: A M <alim1993@yahoo.com>
CC: linux-kernel@vger.kernel.org
Subject: [OT]Re: Accessing program counter registers from within C or Aseembler.
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A M wrote:
> Hello, 
> 
> Does anybody know how to access the address of the
> current executing instruction in C while the program
> is executing? 
> 
> Also, is there a method to load a program image from
> memory not a file (an exec that works with a memory
> address)? Mainly I am looking for a method that brings
> a program image into memory modify parts of it and
> start the in-memory modified version. 
> 
> Can anybody think of a method to replace a thread
> image without replacing the whole process image? 
> 
> Thanks, 
> 
> Ali
> 

The Shellcoder's Handbook is probably the best book out there on the kind of stuff 
you're talking about.  Just be prepared - it's written on a rather advanced level.
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