From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 123678 invoked by alias); 10 Dec 2015 19:00:09 -0000 Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org Received: (qmail 123651 invoked by uid 89); 10 Dec 2015 19:00:08 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.6 required=5.0 tests=AWL,BAYES_00,KAM_LAZY_DOMAIN_SECURITY,SPF_HELO_PASS,T_RP_MATCHES_RCVD autolearn=no version=3.3.2 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-GCM-SHA384 encrypted) ESMTPS; Thu, 10 Dec 2015 19:00:04 +0000 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id A59D2C07662D; Thu, 10 Dec 2015 19:00:02 +0000 (UTC) Received: from t540p.usersys.redhat.com (dhcp-10-15-1-6.hsv.redhat.com [10.15.1.6]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tBAJ01nM000363 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 10 Dec 2015 14:00:02 -0500 Subject: Re: Prelinking on ARM with Debug Link To: Torsten Polle References: <1448534000.7609.64.camel@redhat.com> <6C764A67-BD51-4CD6-8CE6-8E19E5453462@gmx.de> <1448611496.7609.80.camel@redhat.com> <20151127150614.GD2790@blokker.redhat.com> <3E5ADB9D-77C7-4AFB-BC5C-321B6DC21572@gmx.de> <565CA2E3.7020602@redhat.com> Cc: Mark Wielaard , systemtap@sourceware.org From: David Smith Message-ID: <5669CBB1.9040204@redhat.com> Date: Thu, 10 Dec 2015 19:00:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2015-q4/txt/msg00259.txt.bz2 On 12/01/2015 02:10 PM, Torsten Polle wrote: > Hi David, > > David Smith writes: > > I don't believe we've ever supported an arm/arm64 kernel less than 3.7, > > I'm using SystemTap successfully with a 2.6.34 kernel on ARM since 4 > years now. So far it worked without much problems. > > > so there isn't arch-specific execve support for arm/arm64. But, if you > > have got working execve support for arm/arm64 kernels less than 3.7, I > > don't see a real problem with checking it in (assuming it looks reasonable). > > I've support that is working in my environment. At least the defined > variables give some decent result. Please judge the quality for yourself. > > The error message reported comes from the fact that the file > syscalls.stp is regarded as empty by SystemTap if the kernel version is > greater then 3.7. I could not find a nice solution so far. Torsten, I've checked in your changes, they all looked reasonable. I added support for nd_syscall.execve. I worked around the empty tapset warning by adding a 'never' probe the the new tapset files. Thanks for the patch. -- David Smith dsmith@redhat.com Red Hat http://www.redhat.com 256.217.0141 (direct) 256.837.0057 (fax)