From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Andrea Corallo via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#36649: 27.0.50; pure space and pdumper Date: Thu, 13 May 2021 21:23:10 +0000 Message-ID: References: <4c1248b8-88cc-ca06-6bc8-9f0bb9a98c98@cs.ucla.edu> <87mtt0hupl.fsf@gnus.org> <83mtt02dyz.fsf@gnu.org> <877dk3hoko.fsf@gnus.org> <87y2cjg9mu.fsf@gnus.org> <83a6oz3lpm.fsf@gnu.org> <87lf8jg8o2.fsf@gnus.org> <838s4j3l2e.fsf@gnu.org> <87h7j7g7ft.fsf@gnus.org> <878s4jg67i.fsf@gnus.org> <834kf73iim.fsf@gnu.org> <874kf7g54z.fsf@gnus.org> <8335ur3hu8.fsf@gnu.org> <87bl9feppn.fsf@gnus.org> <831rab3gwl.fsf@gnu.org> <877dk3enzm.fsf@gnus.org> Reply-To: Andrea Corallo Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="11976"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: eggert@cs.ucla.edu, rpluim@gmail.com, stefan@marxist.se, schwab@linux-m68k.org, Stefan Monnier , 36649@debbugs.gnu.org, Lars Ingebrigtsen , Eli Zaretskii To: Pip Cet Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu May 13 23:24:13 2021 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 1lhIoW-0002xI-Ch for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 13 May 2021 23:24:12 +0200 Original-Received: from localhost ([::1]:48230 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lhIoV-00008A-DG for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 13 May 2021 17:24:11 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40760) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lhIoM-000081-B1 for bug-gnu-emacs@gnu.org; Thu, 13 May 2021 17:24:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:32921) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lhIoM-0007io-2r for bug-gnu-emacs@gnu.org; Thu, 13 May 2021 17:24:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lhIoL-0000YX-VE for bug-gnu-emacs@gnu.org; Thu, 13 May 2021 17:24:01 -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, 13 May 2021 21:24:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 36649 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 36649-submit@debbugs.gnu.org id=B36649.16209410412133 (code B ref 36649); Thu, 13 May 2021 21:24:01 +0000 Original-Received: (at 36649) by debbugs.gnu.org; 13 May 2021 21:24:01 +0000 Original-Received: from localhost ([127.0.0.1]:44467 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lhIoL-0000YI-5L for submit@debbugs.gnu.org; Thu, 13 May 2021 17:24:01 -0400 Original-Received: from mx.sdf.org ([205.166.94.24]:65476) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lhIoI-0000Y8-8j for 36649@debbugs.gnu.org; Thu, 13 May 2021 17:23:59 -0400 Original-Received: from mab (ma.sdf.org [205.166.94.33]) by mx.sdf.org (8.15.2/8.14.5) with ESMTPS id 14DLNAQ7021588 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO); Thu, 13 May 2021 21:23:11 GMT In-Reply-To: (Pip Cet's message of "Thu, 13 May 2021 14:44:03 +0000") 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:206468 Archived-At: Pip Cet writes: > On Wed, May 12, 2021 at 7:44 PM Lars Ingebrigtsen wrote: >> Eli Zaretskii writes: >> >> > I don't know if this is an interesting configuration. AFAIU, >> > "--with-dumping=none" means you run the CANNOT_DUMP version, which >> > doesn't dump Emacs at all. >> >> Ah, yes... and in that case I guess there is no pure space? Oh well, I >> guess somebody has to look into getting unexec working on Linux if we're >> to, er, see what the impact of pure space unexec would have been. If it >> was working. :-) > > I had it working a while ago, just not using libc malloc(). AFAIU, > that's just incompatible with unexec() now. > > (And it's still slightly but significantly faster building with > unexec() on Linux than building with pdumper, at least in contrived > benchmarks). > > So, yes, I'd misunderstood Eli and thought he had objections to this > patch; if he doesn't, we should look into fixing the native-comp parts > and apply it :-) Right, if you like me to have a look to the native-comp side would be handy to have this patch pushed as a git branch on our repo. Andrea