From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1Atvqe-0006hl-I4 for user-mode-linux-devel@lists.sourceforge.net; Thu, 19 Feb 2004 13:36:44 -0800 Received: from bureau8.utcc.utoronto.ca ([128.100.132.18]) by sc8-sf-mx1.sourceforge.net with esmtp (Exim 4.30) id 1AtvlB-0007E9-CF for user-mode-linux-devel@lists.sourceforge.net; Thu, 19 Feb 2004 13:31:05 -0800 Message-ID: <40352B06.3030406@users.sourceforge.net> From: kuas MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: [uml-devel] System Call Mechanism Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Thu, 19 Feb 2004 16:30:46 -0500 To: user-mode-linux-devel@lists.sourceforge.net Hello, I'm posting this question to here since this is development problem, the other newsgroup seems to be more like users problem and I would think this forum would be able to explain more about my question. I will post to the other newsgroup if that's the one where I should really be posting I'm trying to find out how the system call mechanism presently works in UML. I have looked into the high level description in the slides. Any pointers to any other documents that I might missed are appreciated. I seems to me the new or current implementation of system call involves conversion from interupt 80 at the host OS into signals back in UML kernel. Is this the same mechanism for the current TT and SKAS? Or TT mode still using ptrace thread tracing mechanism to intercept the system call? If there is a signal from the host to UML kernel process, there must be a signal handler registered by the UML kernel. Any quick deeper overview about this mechanism would be really welcome. Thanks in advance. Kuas. ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel