From owner-freebsd-hackers@FreeBSD.ORG  Thu Jul 17 20:22:17 2003
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 7403837B401
	for <hackers@freebsd.org>; Thu, 17 Jul 2003 20:22:17 -0700 (PDT)
Received: from fed1mtao02.cox.net (fed1mtao02.cox.net [68.6.19.243])
	by mx1.FreeBSD.org (Postfix) with ESMTP id CA2F043FA3
	for <hackers@freebsd.org>; Thu, 17 Jul 2003 20:22:16 -0700 (PDT)
	(envelope-from kevin@wooten.com)
Received: from wooten.com ([68.2.41.222]) by fed1mtao02.cox.net
          (InterMail vM.5.01.04.05 201-253-122-122-105-20011231) with ESMTP
          id <20030718032215.NEM24536.fed1mtao02.cox.net@wooten.com>
          for <hackers@freebsd.org>; Thu, 17 Jul 2003 23:22:15 -0400
Message-ID: <3F17677C.4090200@wooten.com>
Date: Thu, 17 Jul 2003 20:20:28 -0700
From: Kevin Wooten <kevin@wooten.com>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
	rv:1.4) Gecko/20030624
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: hackers@freebsd.org
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Subject: ptrace & threads
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 18 Jul 2003 03:22:17 -0000

Is it possible (and how, if it is) to control individual threads of a 
process under ptrace? If not what does this require, some kind of manual 
interaction with the thread library? Some general direction pointing 
would be very helpful, thanks.

-kw