From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Andrea Corallo Newsgroups: gmane.emacs.devel Subject: Re: Suppressing native compilation (short and long term) Date: Fri, 14 Oct 2022 23:20:43 +0000 Message-ID: References: <87ill8paw7.fsf@trouble.defaultvalue.org> <83o7uzivey.fsf@gnu.org> <3ac9d2b9632f75018327a1bcde0c373f152c404a.camel@gmail.com> <835ygob7ja.fsf@gnu.org> <8335bra2rl.fsf@gnu.org> <87ilkncugg.fsf@gnus.org> <83zgdz7x8u.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="37514"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Lars Ingebrigtsen , monnier@iro.umontreal.ca, liliana.prikler@gmail.com, rlb@defaultvalue.org, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Oct 15 01:21:48 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 1ojTzw-0009c7-6e for ged-emacs-devel@m.gmane-mx.org; Sat, 15 Oct 2022 01:21:48 +0200 Original-Received: from localhost ([::1]:50194 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ojTzv-00010m-24 for ged-emacs-devel@m.gmane-mx.org; Fri, 14 Oct 2022 19:21:47 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46740) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ojTz1-0000Do-E5 for emacs-devel@gnu.org; Fri, 14 Oct 2022 19:20:51 -0400 Original-Received: from mx.sdf.org ([205.166.94.24]:59292) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ojTyz-0005Su-D7; Fri, 14 Oct 2022 19:20:51 -0400 Original-Received: from ma.sdf.org (ma.sdf.org [205.166.94.33]) by mx.sdf.org (8.15.2/8.14.5) with ESMTPS id 29ENKhmU002407 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO); Fri, 14 Oct 2022 23:20:44 GMT In-Reply-To: <83zgdz7x8u.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 14 Oct 2022 09:08:49 +0300") Received-SPF: pass client-ip=205.166.94.24; envelope-from=akrl@sdf.org; helo=mx.sdf.org X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-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" Xref: news.gmane.io gmane.emacs.devel:297740 Archived-At: Eli Zaretskii writes: >> From: Lars Ingebrigtsen >> Cc: Stefan Monnier , liliana.prikler@gmail.com, >> rlb@defaultvalue.org, emacs-devel@gnu.org, Andrea Corallo >> Date: Thu, 13 Oct 2022 22:57:51 +0200 >> >> Eli Zaretskii writes: >> >> > No, it should not happen, because async JIT compilation processes run >> > Emacs in batch mode, and async compilation is disabled in batch mode >> > (for this very reason). >> >> As we've covered many times recently -- yes, but no. >> >> .elc -> .eln generation is off, but trampolines are on, and comp.el >> forks an Emacs to generate those, too, I think? So if the forked Emacs >> also needs to generate the same trampoline, you have an infinite >> recursion fork bomb. > > Andrea, how can we prevent that? Dumb question: can't we just run the spawned compilation processes with --no-site-file? Other option is to break circularity with an ad-hoc global variable set in the spawned process. I've a cooked patch for that but no energy left to test it tonight. If that's the preferred way I can test and push it tomorrow. Best Regards Andrea