From owner-freebsd-current@FreeBSD.ORG Thu Nov 23 02:51:45 2006 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C976716A403 for ; Thu, 23 Nov 2006 02:51:45 +0000 (UTC) (envelope-from max@love2party.net) Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.188]) by mx1.FreeBSD.org (Postfix) with ESMTP id AACEB43D4C for ; Thu, 23 Nov 2006 02:51:12 +0000 (GMT) (envelope-from max@love2party.net) Received: from [88.64.189.25] (helo=amd64.laiers.local) by mrelayeu.kundenserver.de (node=mrelayeu1) with ESMTP (Nemesis), id 0MKwpI-1Gn4fc31WP-0000lB; Thu, 23 Nov 2006 03:50:43 +0100 From: Max Laier Organization: FreeBSD To: freebsd-current@freebsd.org Date: Thu, 23 Nov 2006 03:50:27 +0100 User-Agent: KMail/1.9.4 References: <2b22951e0611212109t69b01400q5eb0ba15b028ce68@mail.gmail.com> <9ab217670611221016q5bd1bf84v4ef878391eb2a67a@mail.gmail.com> <20061122214203.GA48004@what-creek.com> In-Reply-To: <20061122214203.GA48004@what-creek.com> X-Face: ,,8R(x[kmU]tKN@>gtH1yQE4aslGdu+2]; R]*pL,U>^H?)gW@49@wdJ`H<=?utf-8?q?=25=7D*=5FBD=0A=09U=5For=3D=5CmOZf764=26nYj=3DJYbR1PW0ud?=>|!~,,CPC.1-D$FG@0h3#'5"k{V]a~.<=?utf-8?q?mZ=7D44=23Se=7Em=0A=09Fe=7E=5C=5DX5B=5D=5Fxj?=(ykz9QKMw_l0C2AQ]}Ym8)fU MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart3735824.iaKMFIVIY0"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200611230350.35351.max@love2party.net> X-Provags-ID: kundenserver.de abuse@kundenserver.de login:61c499deaeeba3ba5be80f48ecc83056 Cc: "Cai, Quanqing" , "Devon H. O'Dell" , John Birrell , Kris Kennaway Subject: Re: KDTRACE is gone? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Nov 2006 02:51:46 -0000 --nextPart3735824.iaKMFIVIY0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Wednesday 22 November 2006 22:42, John Birrell wrote: > On Wed, Nov 22, 2006 at 01:16:17PM -0500, Devon H. O'Dell wrote: > > Yeah, it could be done. However, the DTrace provider (providing > > BEGIN, END, and ERROR, and code that allows for other providers to > > hook in) is > 13,000 lines of code and comments, so it'd be a very > > non-trivial task. > > The DTrace provider isn't actually relevent to this discussion. That > is find staying as a kernel module and CDDL'd. > > The issue is the hooks that the DTrace modules register with. These > are very small bits of BSD licensed code that I write, and which > get added inline to existing BSD licensed sources like trap.c. These > little bits of code tend to require calling the DTrace kernel API or > methods and techniques defined by CDDL headers and not documented > anywhere else. Did you try to ask Sun to relicense just the relevant headers for us? =20 They seem to be very OpenSource friendly as of late and I can't see how=20 it would hurt them. > I have been very careful not to copy CDDL stuff into FreeBSD headers > for fear of causing FreeBSD legal problems in future like the > claims being made in the SCO vs IBM (Linux) litigation. Remember that > the OpenSolaris source is based on System V and Sun Microsystems have > extended it to include DTrace. As far as I understand IBM's arguments in the case - and I am not a=20 lawyer, so this might not mean much - they seem to belive that headers=20 describing an API can't be easily protected by a license. > I need to find an alternative to the KDTRACE implementation -- that's > why I removed it for now. > > I want to come up with a functional equivalent to the Solaris DTrace > implementation. Having it as an option (amongst a heap of other > options) that a user /might/ choose to compile in, isn't a good > design IMO. =2D-=20 /"\ Best regards, | mlaier@freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier@EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News --nextPart3735824.iaKMFIVIY0 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQBFZQx7XyyEoT62BG0RAlIyAJ91hzgJf8yjvG/Myfud79BaDB/k3ACdHfi3 A2VnkoVuSSs/9a6faBnYo7I= =HVod -----END PGP SIGNATURE----- --nextPart3735824.iaKMFIVIY0--