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: Sat, 15 Oct 2022 15:06:41 +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> <87edvbcszx.fsf@gnus.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="23673"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Lars Ingebrigtsen , Eli Zaretskii , liliana.prikler@gmail.com, rlb@defaultvalue.org, emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Oct 15 17:08:44 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 1ojimK-0005uE-7Y for ged-emacs-devel@m.gmane-mx.org; Sat, 15 Oct 2022 17:08:44 +0200 Original-Received: from localhost ([::1]:32814 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ojimJ-0007Hp-3x for ged-emacs-devel@m.gmane-mx.org; Sat, 15 Oct 2022 11:08:43 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41838) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ojikR-000544-3m for emacs-devel@gnu.org; Sat, 15 Oct 2022 11:06:47 -0400 Original-Received: from mx.sdf.org ([205.166.94.24]:60372) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ojikP-0001rb-16; Sat, 15 Oct 2022 11:06:46 -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 29FF6fln024047 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO); Sat, 15 Oct 2022 15:06:42 GMT In-Reply-To: (Stefan Monnier's message of "Fri, 14 Oct 2022 23:09:54 -0400") 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:297784 Archived-At: Stefan Monnier writes: > Andrea Corallo [2022-10-14 22:37:51] wrote: >> Lars Ingebrigtsen writes: >>> Lars Ingebrigtsen writes: >>>> So we need a recursion blocker in the trampoline generation function. >>> Or -- since trampolines are really fast to generate and we need to do >>> that synchronously anyway -- we could just avoid forking an Emacs do >>> create the trampoline? >> We don't do that because libgccjit (well GCC really) leaks memory. > > But we can do that *in the forked Emacs* (this one will exit after > compilation, so leakage is not an issue), so we do fork once but we avoid > forking infinitely. Hi Stefan, by *in the forked Emacs* you mean Emacs just after fork is called or after calling fork+exec to start a fresh session? Andrea