From owner-freebsd-hackers@FreeBSD.ORG Sun Jun 10 12:19:44 2012 Return-Path: Delivered-To: freebsd-hackers@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7D74F106564A; Sun, 10 Jun 2012 12:19:44 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 825AA8FC12; Sun, 10 Jun 2012 12:19:43 +0000 (UTC) Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id PAA19092; Sun, 10 Jun 2012 15:19:36 +0300 (EEST) (envelope-from avg@FreeBSD.org) Received: from localhost ([127.0.0.1]) by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1Sdh7H-00007a-SA; Sun, 10 Jun 2012 15:19:36 +0300 Message-ID: <4FD490D5.1070207@FreeBSD.org> Date: Sun, 10 Jun 2012 15:19:33 +0300 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:12.0) Gecko/20120503 Thunderbird/12.0.1 MIME-Version: 1.0 To: freebsd-hackers@FreeBSD.org X-Enigmail-Version: 1.5pre Content-Type: text/plain; charset=X-VIET-VPS Content-Transfer-Encoding: 7bit Cc: Subject: decoding of multi-byte nops in dtrace X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 Jun 2012 12:19:44 -0000 It seems that the $subj is missing :-) In my environment that causes many functions to not have fbt return probe, because function body decoding fails before 'ret' is found. Here is my attempt at fixing the problem: http://people.freebsd.org/~avg/fbt-nop.patch Reviews and suggestions are welcome. Thank you! -- Andriy Gapon