From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Stephen J. Turnbull" Newsgroups: gmane.emacs.devel Subject: Re: CANNOT_DUMP support Date: Wed, 13 Feb 2008 07:30:53 +0900 Message-ID: <87y79p4xk2.fsf@uwakimon.sk.tsukuba.ac.jp> References: <200802110433.m1B4XrXw017599@sallyv1.ics.uci.edu> <033e133313f724a1896d8077e2f73d0d@lagorda> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1202855070 26486 80.91.229.12 (12 Feb 2008 22:24:30 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 12 Feb 2008 22:24:30 +0000 (UTC) Cc: Dan Nicolaescu , Stefan Monnier , Emacs devel To: "Chris Hall" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Feb 12 23:24:53 2008 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1JP3YX-0002R0-Jc for ged-emacs-devel@m.gmane.org; Tue, 12 Feb 2008 23:24:49 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JP3Y3-0007Kb-W6 for ged-emacs-devel@m.gmane.org; Tue, 12 Feb 2008 17:24:20 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JP3Xz-0007Jk-EK for emacs-devel@gnu.org; Tue, 12 Feb 2008 17:24:15 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JP3Xy-0007In-Lf for emacs-devel@gnu.org; Tue, 12 Feb 2008 17:24:14 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JP3Xy-0007IU-Fx for emacs-devel@gnu.org; Tue, 12 Feb 2008 17:24:14 -0500 Original-Received: from mtps02.sk.tsukuba.ac.jp ([130.158.97.224]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1JP3Xy-0005cC-2t for emacs-devel@gnu.org; Tue, 12 Feb 2008 17:24:14 -0500 Original-Received: from uwakimon.sk.tsukuba.ac.jp (uwakimon.sk.tsukuba.ac.jp [130.158.99.156]) by mtps02.sk.tsukuba.ac.jp (Postfix) with ESMTP id E2F157FFD; Wed, 13 Feb 2008 07:24:09 +0900 (JST) Original-Received: by uwakimon.sk.tsukuba.ac.jp (Postfix, from userid 1000) id E92701A29E5; Wed, 13 Feb 2008 07:30:54 +0900 (JST) In-Reply-To: <033e133313f724a1896d8077e2f73d0d@lagorda> X-Mailer: VM 7.17 under 21.5 (beta28) "fuki" (+CVS-20071205) XEmacs Lucid X-detected-kernel: by monty-python.gnu.org: Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:88914 Archived-At: Chris Hall writes: > Well, its been a long time since I've worked at the level unexec > operates at, and even then it was on System/360 and Series/1, but it > looks like an interesting problem. XEmacs has not had an unexec issue since 2001, because of the introduction of the "portable dumper". The portable dumper transparently ignored the "Hannibal Lector" ld and (mostly) the "Chaos Incarnate" SELinux loader. It also has made preload support for new platforms trivial. The authoritative voice on that module is Olivier Galibert , if the idea interests you. The code may even be legally[1] usable, as the number of contributors is very small and all (except maybe Kyle Jones) would probably sign assignments. (It does depend on the layout and types of builtin Lisp objects, so probably it wouldn't help all that much, though.) Footnotes: [1] By which I mean that it will satisfy the GNU Emacs project's requirements for provenance and defensibility, not that it's under some kind of non-GPL-compatible license.