From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Dumping unexec (was: Question about pure space) Date: Sat, 20 Apr 2024 09:43:32 -0400 Message-ID: References: <87il0dqrp7.fsf@gmail.com> <86v84d9rs5.fsf@gnu.org> <87bk64imly.fsf@yahoo.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30328"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: Gerd =?windows-1252?Q?M=F6llmann?= , Eli Zaretskii , rpluim@gmail.com, schwab@suse.de, emacs-devel@gnu.org To: Po Lu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Apr 20 15:44:33 2024 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ryB16-0007k1-TU for ged-emacs-devel@m.gmane-mx.org; Sat, 20 Apr 2024 15:44:33 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ryB0H-0008M5-4S; Sat, 20 Apr 2024 09:43:41 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ryB0F-0008Ls-Mq for emacs-devel@gnu.org; Sat, 20 Apr 2024 09:43:39 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ryB0E-0003IO-4C; Sat, 20 Apr 2024 09:43:39 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 608D910007D; Sat, 20 Apr 2024 09:43:35 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1713620614; bh=VtNg1Xxj41/TW19xF/I8CdqbPNqh82vGhoxsAeYIOFQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=TV5Wn8dRQaBW18f71DDilQ8pIej9REL2x+BSSXJdHGH5PH9+5i6etUnFnib7okpGw CXzYJL/DpFMck0M22Vmy1QdPz0xwbfS+/GmHa8OxlaeU3HbIUmAIjlkUqqOiNkJBWt 9gZY3RoHNTWsbfGDqtB5+MCjp3zAG9M4iiSaRim8KmWxTNUJHI6j/C9vD/VujbQufT Gr4JZcZ1+gc+4lFb2BClhdCKGB+2+I7weFFhAcavhbuCnfeWVURkMAGOKQLbYaLrs8 9WhXst8N5UtlcpilTzz2ZJ8YCgU777xZOK2X4PxFoCQINjSMkb4JfXFsj/FVwWynFl aBvW4ncDibaLg== Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 68DC4100048; Sat, 20 Apr 2024 09:43:34 -0400 (EDT) Original-Received: from pastel (unknown [45.72.201.215]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 3108112030C; Sat, 20 Apr 2024 09:43:34 -0400 (EDT) In-Reply-To: <87bk64imly.fsf@yahoo.com> (Po Lu's message of "Sat, 20 Apr 2024 14:17:45 +0800") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:317876 Archived-At: >> Can I ask what the problem with removing unexec is? > The pdumper has not been ported to several configurations, > e.g. Windows 9x and DJGPP. IIUC, adding support for the pdumper to these systems should be fairly simple, consisting mostly of replacing calls to `mmap` with `malloc+read`. Has someone with access to such systems tried that? Is there some more serious issue? Stefan