From owner-freebsd-hackers  Sat Apr 22 12: 3: 0 2000
Delivered-To: freebsd-hackers@freebsd.org
Received: from urban.iinet.net.au (urban.iinet.net.au [203.59.24.231])
	by hub.freebsd.org (Postfix) with ESMTP id 7320637B64E
	for <hackers@freebsd.org>; Sat, 22 Apr 2000 12:02:54 -0700 (PDT)
	(envelope-from julian@elischer.org)
Received: from popserver-02.iinet.net.au (popserver-02.iinet.net.au [203.59.24.148])
	by urban.iinet.net.au (8.8.7/8.8.7) with ESMTP id DAA03335;
	Sun, 23 Apr 2000 03:02:47 +0800
Received: from jules.elischer.org (reggae-09-4.nv.iinet.net.au [203.59.67.4])
	by popserver-02.iinet.net.au (8.9.3/8.9.3) with SMTP id DAA19316;
	Sun, 23 Apr 2000 03:02:42 +0800
Message-ID: <3901F714.446B9B3D@elischer.org>
Date: Sat, 22 Apr 2000 12:01:40 -0700
From: Julian Elischer <julian@elischer.org>
X-Mailer: Mozilla 3.04Gold (X11; I; FreeBSD 5.0-CURRENT i386)
MIME-Version: 1.0
To: Marco van de Voort <marcov@stack.nl>
Cc: hackers@freebsd.org
Subject: Re: Clone in userland
References: <20000422183054.D53EB2E802@hermes.tue.nl>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-hackers@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

Marco van de Voort wrote:
> 
> I have a Linux library based on the Clone() call which I want to port to native
> FreeBSD.

Check the port of linuxthreads
(under /ports/devel I think)
It includes a clone() function.


> 
> I checked the linux emulation, and it seems to do some internal kernel stuff.
> Is this possible to emulate in userland?
> 
>     p2 = pfind(p->p_retval[0]);
> 
> /* MvdV: check rfork's return value, and if clone, then load process info?  */
> 
>     if (p2 == 0)
>         return ESRCH;
> 
>     p2->p_sigparent = exit_signal;
> 
>     p2->p_md.md_regs->tf_esp = (unsigned int)args->stack;
> 
> Marco van de Voort (MarcoV@Stack.nl)
> <http://www.stack.nl/~marcov/xtdlib.htm>
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-hackers" in the body of the message

-- 
      __--_|\  Julian Elischer
     /       \ julian@elischer.org
    (   OZ    ) World tour 2000
---> X_.---._/  presently in:  Perth
            v


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message