From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1HETuu-0005jX-ET for user-mode-linux-devel@lists.sourceforge.net; Tue, 06 Feb 2007 09:15:40 -0800 Received: from smtp001.mail.ukl.yahoo.com ([217.12.11.32]) by mail.sourceforge.net with smtp (Exim 4.44) id 1HETuG-0001fu-3w for user-mode-linux-devel@lists.sourceforge.net; Tue, 06 Feb 2007 09:15:36 -0800 From: Blaisorblade Date: Tue, 6 Feb 2007 18:14:18 +0100 References: <000001c74755$4f135dd0$ed3a1970$@ca> In-Reply-To: <000001c74755$4f135dd0$ed3a1970$@ca> MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200702061814.19123.blaisorblade@yahoo.it> Subject: Re: [uml-devel] adding a system call in uml List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-bounces@lists.sourceforge.net Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: user-mode-linux-devel@lists.sourceforge.net Cc: Mohammad Jawwad On Saturday 03 February 2007 06:36, Mohammad Jawwad wrote: > Hello, > > > > How does one add a system call to user mode linux? > > I followed the instructions here:= > > http://user-mode-linux.sourceforge.net/lksct/ It's from 2002, (I've seen this in the homepage), it's outdated. No information about kernel development lasts for so long. Those instructions could be meaningful for 2.4, and _maybe_ early 2.6 UML kernels (I didn't look at the details). Which UML version did you use? These days, to add a syscall to a 32bit UML you must patch x86 sources, and for a 64bit UML, the x86-64 sources. There will be more info on doing that in various websites.So look for info on doing that. Files to modify are, at least: For x86: include/asm-i386/unistd.h arch/i386/kernel/syscall_table.S For x86_64: include/asm-x86_64/unistd.h Those files are included/reused by UML - this was done to make it easier to keep syscall tables in sync. Also, syscall 253 is already assigned these days. > The program compiles but dosent print out the the output from the printk() > statement. > > Has anybody successfully installed a system call in uml? -- Inform me of my mistakes, so I can add them to my list! Paolo Giarrusso, aka Blaisorblade http://www.user-mode-linux.org/~blaisorblade Chiacchiera con i tuoi amici in tempo reale! http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel