From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Hansen Subject: Re: [RFC][PATCH] clone_with_pids()^w eclone() for x86_64 Date: Thu, 19 Nov 2009 13:32:36 -0800 Message-ID: <1258666356.20093.9622.camel@nimitz> References: <20091119004838.AD278DE0@kernel> <20091119095844.GP4379@hawkmoon.kerlabs.com> <1258652929.20093.8941.camel@nimitz> <20091119212646.GA4767@localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20091119212646.GA4767@localdomain> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Louis.Rilling-aw0BnHfMbSpBDgjK7y7TUQ@public.gmane.org Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: containers.vger.kernel.org On Thu, 2009-11-19 at 22:26 +0100, Louis Rilling wrote: > But actually this is even better :D: > > __asm__ __volatile__( > "movq %3, %%r10\n\t" /* pids in r10*/ > "pushq %%rbp\n\t" /* save value of ebp */ > : > :"D" (flags_low), /* rdi */ > "S" (clone_args),/* rsi */ > "d" (args_size), /* rdx */ > "r10" (pids) /* Linux reads its fourth arg from r10 */ > ); That gives me: clone-lib.c:28: error: matching constraint references invalid operand number -- Dave