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#46256: [feature/native-comp] AOT eln files ignored if run from build tree Date: Sat, 06 Mar 2021 18:37:14 +0000 Message-ID: References: <861rd1tbpa.fsf@gmail.com> <83im68j963.fsf@gnu.org> <83tuprhur0.fsf@gnu.org> <831rcu25o2.fsf@gnu.org> <83v9a6zr22.fsf@gnu.org> <83o8fyzjrz.fsf@gnu.org> <86sg593vfm.fsf@gmail.com> <86mtvgwk9s.fsf@gmail.com> <83czwcwhpz.fsf@gnu.org> <867dmkl38j.fsf@gmail.com> 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="9027"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 46256@debbugs.gnu.org To: Andy Moreton Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Mar 06 19:38:10 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 1lIboY-0002Gm-9l for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 06 Mar 2021 19:38:10 +0100 Original-Received: from localhost ([::1]:49958 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lIboX-0007IZ-Bm for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 06 Mar 2021 13:38:09 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60656) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lIboQ-0007Hj-RL for bug-gnu-emacs@gnu.org; Sat, 06 Mar 2021 13:38:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:54998) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lIboQ-0003mG-JT for bug-gnu-emacs@gnu.org; Sat, 06 Mar 2021 13:38:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lIboQ-0004qz-H9 for bug-gnu-emacs@gnu.org; Sat, 06 Mar 2021 13:38:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Andrea Corallo Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 06 Mar 2021 18:38:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 46256 X-GNU-PR-Package: emacs Original-Received: via spool by 46256-submit@debbugs.gnu.org id=B46256.161505583718572 (code B ref 46256); Sat, 06 Mar 2021 18:38:02 +0000 Original-Received: (at 46256) by debbugs.gnu.org; 6 Mar 2021 18:37:17 +0000 Original-Received: from localhost ([127.0.0.1]:38307 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lIbnh-0004pO-2W for submit@debbugs.gnu.org; Sat, 06 Mar 2021 13:37:17 -0500 Original-Received: from mx.sdf.org ([205.166.94.24]:61387) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lIbnf-0004pG-2g for 46256@debbugs.gnu.org; Sat, 06 Mar 2021 13:37:15 -0500 Original-Received: from mab (ma.sdf.org [205.166.94.33]) by mx.sdf.org (8.15.2/8.14.5) with ESMTPS id 126IbEZg014660 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO); Sat, 6 Mar 2021 18:37:14 GMT In-Reply-To: <867dmkl38j.fsf@gmail.com> (Andy Moreton's message of "Sat, 06 Mar 2021 15:18:52 +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:201660 Archived-At: Andy Moreton writes: > On Sat 06 Mar 2021, Eli Zaretskii wrote: > >>> From: Andy Moreton >>> Date: Sat, 06 Mar 2021 12:15:27 +0000 >>> >>> > IIUC, we don't actually call dlclose() until we GC (and might not do >>> > so even then, since GC is conservative). >>> >>> In that case keeping the handles open is the real bug here, and it would >>> be better to focus on how to ensure that resources are released corectly. >>> >>> Is there a similar issue in the dynamic modules interface ? >> >> Which problem is that? At least on MS-Windows, a DLL remains open for >> as long as the program that loaded it keeps running. How is the >> situation discussed here different? > > Keeping the DLL loaded happens with build-time linking, but this > discussion is about runtime-linking of shared libraries: dlopen, dlsym, > dlclose (or for Windows: LoadLibary, GetProcAddress, FreeLibrary). > > We need to hear from Andrea to be sure of the precise details. > > AndyM Hi Andy, Each eln file is 'dlclosed' if/when the compilation unit (CU) is garbage collected. The the CU is a Lisp object and every native compiled Lisp function holds a reference to it, as a consequence the CU is GC'ed only when we have no more native compiled Lisp function belonging to it live. Andrea