Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753483Ab0ANE5x (ORCPT ); Wed, 13 Jan 2010 23:57:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752698Ab0ANE5v (ORCPT ); Wed, 13 Jan 2010 23:57:51 -0500 Received: from mx1.redhat.com ([209.132.183.28]:7349 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752696Ab0ANE5u (ORCPT ); Wed, 13 Jan 2010 23:57:50 -0500 Message-ID: <4B4EA4F3.6090401@redhat.com> Date: Thu, 14 Jan 2010 00:00:35 -0500 From: Masami Hiramatsu User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.5) Gecko/20091209 Fedora/3.0-3.fc11 Thunderbird/3.0 MIME-Version: 1.0 To: KOSAKI Motohiro CC: LKML , Ingo Molnar Subject: Re: [resend][PATCH 1/2] kprobetrace,doc: shell need single quote to use $ character References: <20100114111032.D720.A69D9226@jp.fujitsu.com> In-Reply-To: <20100114111032.D720.A69D9226@jp.fujitsu.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2023 Lines: 54 KOSAKI Motohiro wrote: > shell interpret $val is as shell variable. thus we need quote if > we use echo command. > > Signed-off-by: KOSAKI Motohiro > Acked-by: Masami Hiramatsu Hi Ingo and KOSAKI-san, Sorry, now this patch conflicts with my patch(commit 1464010) on the latest -tip tree. The patch drops $argN support, so I updated the 1st example command. Thank you, > --- > Documentation/trace/kprobetrace.txt | 4 ++-- > 1 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt > index 47aabee..2be6e19 100644 > --- a/Documentation/trace/kprobetrace.txt > +++ b/Documentation/trace/kprobetrace.txt > @@ -82,13 +82,13 @@ Usage examples > To add a probe as a new event, write a new definition to kprobe_events > as below. > > - echo p:myprobe do_sys_open dfd=$arg0 filename=$arg1 flags=$arg2 mode=$arg3 > /sys/kernel/debug/tracing/kprobe_events > + echo 'p:myprobe do_sys_open dfd=$arg0 filename=$arg1 flags=$arg2 mode=$arg3' > /sys/kernel/debug/tracing/kprobe_events > > This sets a kprobe on the top of do_sys_open() function with recording > 1st to 4th arguments as "myprobe" event. As this example shows, users can > choose more familiar names for each arguments. > > - echo r:myretprobe do_sys_open $retval >> /sys/kernel/debug/tracing/kprobe_events > + echo 'r:myretprobe do_sys_open $retval' >> /sys/kernel/debug/tracing/kprobe_events > > This sets a kretprobe on the return point of do_sys_open() function with > recording return value as "myretprobe" event. -- Masami Hiramatsu Software Engineer Hitachi Computer Products (America), Inc. Software Solutions Division e-mail: mhiramat@redhat.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/