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From: matteo@ghost.unimi.it (Matteo Gelosa)
Subject: Re: Restarting a process from a core file
Message-ID: <1991May03.110642.26443@ghost.unimi.it>
Organization: Computer Science Dep. - Milan University
References: <1991May1.170008.12258@neocad.com>
Date: Fri, 03 May 1991 11:06:42 GMT
Lines: 18

	Have you ever seen a system call called  ptrace(2) ?  It
	is the system call used by debuggers to communicate with
	a process, you can stop a program to perform trace, read
	and  write  into  text  area,  data  area  and  obviosly
	register  area.  You can obtain an image of these  areas
	from a core  file.  You may  try (I  said  MAY  TRY)  to
	re-loading  these areas into a process reading them from
	a core file, and then  re-start  execution,  but I don't
	assure that it will work at all.
	Anyway,  ptrace(2) is a valid  instrument  to treat this
	kind of stuff.

---
Matteo Gelosa					Phone  : +39-2-7575242
Universita' Statale di Milano			Fax    : +39-2-76110556
Dipartimento di Scienze dell'Informazione	Telex  : 335199 - MIDSII
Via Moretto da Brescia, 9                       E-Mail : matteo@ghost.unimi.it
I-20133 Milano - Italy - `92 Europe