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: Re: Objects that can't be purified during dumping Date: Sat, 23 Jul 2022 11:55:06 -0400 Message-ID: References: <83czdwhsc1.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="33952"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Eli Zaretskii , emacs-devel To: Lynn Winebarger Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Jul 23 17:56:33 2022 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 1oFHUX-0008cm-6w for ged-emacs-devel@m.gmane-mx.org; Sat, 23 Jul 2022 17:56:33 +0200 Original-Received: from localhost ([::1]:49268 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oFHUV-0004VE-NE for ged-emacs-devel@m.gmane-mx.org; Sat, 23 Jul 2022 11:56:31 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55490) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oFHTG-0001g3-CX for emacs-devel@gnu.org; Sat, 23 Jul 2022 11:55:18 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:42704) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oFHTD-0004HH-VP; Sat, 23 Jul 2022 11:55:13 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id EDE5110027D; Sat, 23 Jul 2022 11:55:09 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 4875D100120; Sat, 23 Jul 2022 11:55:08 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1658591708; bh=WAD72oJTXyokGJsddGV/0v7ArZQIsa+k66WYgCftYWg=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=Gq2QtIUWpqJHJLIdtbSUSsTn4x/uUjLcbp+zvACAqjCYLarrnnimhLdCDN69PtPJw XPlioNLuOWM10IEJqZLUclSQm0p1aKhMKHiL/76mZ0/9HKStjDqkAKmmpqFgth0dhA pZ6KxKtaRK57thJFngpAhl4qVj0aSTu2krOJORG9dGkako6Mg/qsgGQYDSxfbJojAa kc1w09lcYhEYP9RSuj5mpPPTJXpRNf4FOjEsKKnysHgaB1hlxOHTzSNvshLn57muje puhi8zMZ88thLiauuk7lcuti2HTKYiMsyE+enwuVKmAqkIIF+cmMGRxSnUuDlATGU5 1+rahHIL7v0/g== Original-Received: from pastel (unknown [45.72.195.111]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 13BB1120191; Sat, 23 Jul 2022 11:55:08 -0400 (EDT) In-Reply-To: (Lynn Winebarger's message of "Sat, 23 Jul 2022 09:59:18 -0400") 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, T_SCC_BODY_TEXT_LINE=-0.01 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" Xref: news.gmane.io gmane.emacs.devel:292543 Archived-At: > I recalled seeing an exchange to that effect on this list. I'll try the > hack (on alloc.c) and see if it works as an interim solution. I think you can just do: diff --git a/src/alloc.c b/src/alloc.c index 6e166d00d5b..acf558f3c7a 100644 --- a/src/alloc.c +++ b/src/alloc.c @@ -5611,7 +5611,8 @@ DEFUN ("purecopy", Fpurecopy, Spurecopy, 1, 1, 0, static Lisp_Object purecopy (Lisp_Object obj) { - if (FIXNUMP (obj) + if (true + || FIXNUMP (obj) || (! SYMBOLP (obj) && PURE_P (XPNTR (obj))) || SUBRP (obj)) return obj; /* Already pure. */ But, the "pinned" approach as is done for hash-tables should work just fine as well. Stefan