From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24903 invoked by alias); 23 Mar 2011 01:25:30 -0000 Received: (qmail 24892 invoked by uid 22791); 23 Mar 2011 01:25:29 -0000 X-SWARE-Spam-Status: No, hits=-2.7 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,TW_BJ X-Spam-Check-By: sourceware.org Received: from mail-gw0-f47.google.com (HELO mail-gw0-f47.google.com) (74.125.83.47) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 23 Mar 2011 01:25:21 +0000 Received: by gwb11 with SMTP id 11so4259185gwb.20 for ; Tue, 22 Mar 2011 18:25:20 -0700 (PDT) MIME-Version: 1.0 Received: by 10.151.13.11 with SMTP id q11mr6055972ybi.272.1300843519975; Tue, 22 Mar 2011 18:25:19 -0700 (PDT) Received: by 10.147.35.17 with HTTP; Tue, 22 Mar 2011 18:25:19 -0700 (PDT) In-Reply-To: <20110321095511.GA16725@baltika> References: <20110321095511.GA16725@baltika> Date: Wed, 23 Mar 2011 01:25:00 -0000 Message-ID: Subject: Re: different result on cross-compile on fc12 and fc13 From: Zhiwei Ying To: Adrien Kunysz Cc: systemtap Content-Type: text/plain; charset=ISO-8859-1 X-IsSubscribed: yes 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 X-SW-Source: 2011-q1/txt/msg00510.txt.bz2 Yes, the -vvvvv and the compare is useful. I found some difference is suspicious in the comparison. I recompiled the systemtap with another version elfutils, looks like it solve the problem. Thanks! On Mon, Mar 21, 2011 at 5:55 PM, Adrien Kunysz wrote: > On Mon, Mar 21, 2011 at 10:28:02AM +0800, Zhiwei Ying wrote: >> I have a develop board, which runs linux 2.6.35. The board is >> connected to a fedora 12. I cross-compile the systemtap script to >> generate trace.ko, and copy the trace.ko to run the instrumented code >> on the board. >> >> If I compiled the trace.ko on fc13, then everything is fine. The trace >> log is generated correctly. But if I compiled the trace.ko on fc12, >> whatever I use the stap on fc12 or compile a systemtap 1.4 myself, I >> cannot see correct trace log on the board after running. The trace.ko >> cannot generate any log from application, but only able to trace >> probe.end. >> >> I didn't see any compile error msg on fc12 system. >> >> Any idea to solve this problem. I cannot drop fc12 now and don't want >> to use another fc13 to compile the script. > > I would rebuild both the working and non-working versions of the module > with -vvvvv and try to find any difference in there. Failing that, I > would look at differences in the modules themselves (maybe with objdump > and diff) then try to figure out where it comes from. > > A more detailed description of what (doesn't) work(s) would also help. > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.9 (GNU/Linux) > > iEYEARECAAYFAk2HIH8ACgkQKLX03ZSPZGyWvwCfUJWrv3IjG4vG5dKvhFprkcFA > F2gAn2VMceMx4NL51YRlUAO7V7E/ftgx > =IYfX > -----END PGP SIGNATURE----- > >