From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Andrea Corallo Newsgroups: gmane.emacs.bugs Subject: bug#41242: Port feature/native-comp to Windows Date: Thu, 14 May 2020 18:13:35 +0000 Message-ID: References: <834ksi60zn.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="126069"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) Cc: 41242@debbugs.gnu.org To: Nicolas =?UTF-8?Q?B=C3=A9rtolo?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu May 14 20:14:11 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1jZIN1-000Whd-JW for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 14 May 2020 20:14:11 +0200 Original-Received: from localhost ([::1]:50202 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jZIN0-0001JJ-Ly for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 14 May 2020 14:14:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46850) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jZIMs-0001J4-Lx for bug-gnu-emacs@gnu.org; Thu, 14 May 2020 14:14:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:51452) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jZIMs-0007WK-D4 for bug-gnu-emacs@gnu.org; Thu, 14 May 2020 14:14:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jZIMs-0005qQ-8d for bug-gnu-emacs@gnu.org; Thu, 14 May 2020 14:14:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Andrea Corallo Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 14 May 2020 18:14:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 41242 X-GNU-PR-Package: emacs Original-Received: via spool by 41242-submit@debbugs.gnu.org id=B41242.158948002022420 (code B ref 41242); Thu, 14 May 2020 18:14:02 +0000 Original-Received: (at 41242) by debbugs.gnu.org; 14 May 2020 18:13:40 +0000 Original-Received: from localhost ([127.0.0.1]:34764 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jZIMW-0005pY-HJ for submit@debbugs.gnu.org; Thu, 14 May 2020 14:13:40 -0400 Original-Received: from mx.sdf.org ([205.166.94.20]:64504) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jZIMT-0005pN-De for 41242@debbugs.gnu.org; Thu, 14 May 2020 14:13:39 -0400 Original-Received: from sdf.org (ma.sdf.org [205.166.94.33]) by mx.sdf.org (8.15.2/8.14.5) with ESMTPS id 04EIDZd5015277 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO); Thu, 14 May 2020 18:13:36 GMT Original-Received: (from akrl@localhost) by sdf.org (8.15.2/8.12.8/Submit) id 04EIDZV1032499; Thu, 14 May 2020 18:13:35 GMT In-Reply-To: ("Nicolas =?UTF-8?Q?B=C3=A9rtolo?="'s message of "Thu, 14 May 2020 14:51:34 -0300") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:180234 Archived-At: Nicolas B=C3=A9rtolo writes: >> 1- eln files do not retain the orginal function bytecode. > > That should be easy to change. Sure but we don't want to do that because there's no reason to bloat the eln. >> in any point of the code you can get the symbol-function of a defined > function and leak it everywhere. > > This is why I said the GC should do it. It should be able to find all > references. Yes but I can't *remove* objects that are referenced niether swap them. See below. >> We can't technically "swap" functions definitions, the best we do is just >> redefine them that is set a certain symbol-function (what late load does= ). > > When the GC finds a Lisp_Object that points to a subr we want to unload, > it should replace it with one that points to its bytecode equivalent vers= ion. No it cannot, if an object has been tested to say satisfy a predicate you cannot change it for another one. It would break tons of code and make the system totally un-debuggable. >> Even worst the function you want to remove could be active in the stack! > > You are right. I hadn't considered this. It can still be done, but would = need to > wait until the function finishes. Yes, but when are all functions you want to get rid deactivated? Here we are really complexifying a problem that is not. IMO renaming and having a list to do the clean-up are sufficient tools to solve it. --=20 akrl@sdf.org