From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#46256: [feature/native-comp] AOT eln files ignored if run from build tree Date: Sun, 07 Mar 2021 07:55:46 +0200 Message-ID: <83y2eztsm5.fsf@gnu.org> References: <83tuprhur0.fsf@gnu.org> <83o8fxyafx.fsf@gnu.org> <83h7lpy7b7.fsf@gnu.org> <83blbxxwuj.fsf@gnu.org> <83a6rgwdmr.fsf@gnu.org> <835z24wb0s.fsf@gnu.org> <83y2f0uqcd.fsf@gnu.org> <83im64unhs.fsf@gnu.org> <834khouj1z.fsf@gnu.org> <831rcsuhqm.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="21233"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 46256@debbugs.gnu.org, andrewjmoreton@gmail.com, pipcet@gmail.com To: Andrea Corallo Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Mar 07 06:58:04 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 1lImQW-0005QF-It for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 07 Mar 2021 06:58:04 +0100 Original-Received: from localhost ([::1]:41872 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lImQV-0006vJ-3x for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 07 Mar 2021 00:58:03 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53534) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lImPW-0006uI-AT for bug-gnu-emacs@gnu.org; Sun, 07 Mar 2021 00:57:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:55443) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lImPW-0000LP-1H for bug-gnu-emacs@gnu.org; Sun, 07 Mar 2021 00:57:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lImPV-0000XA-TR for bug-gnu-emacs@gnu.org; Sun, 07 Mar 2021 00:57:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 07 Mar 2021 05:57:01 +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=B46256.16150965651973 (code B ref 46256); Sun, 07 Mar 2021 05:57:01 +0000 Original-Received: (at 46256) by debbugs.gnu.org; 7 Mar 2021 05:56:05 +0000 Original-Received: from localhost ([127.0.0.1]:38756 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lImOb-0000Vl-FU for submit@debbugs.gnu.org; Sun, 07 Mar 2021 00:56:05 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:35496) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lImOZ-0000VF-AA for 46256@debbugs.gnu.org; Sun, 07 Mar 2021 00:56:04 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:53193) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lImOT-0008Qo-49; Sun, 07 Mar 2021 00:55:57 -0500 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:2075 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lImOR-0003Yr-Ov; Sun, 07 Mar 2021 00:55:56 -0500 In-Reply-To: (message from Andrea Corallo on Sat, 06 Mar 2021 21:02:17 +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:201716 Archived-At: > From: Andrea Corallo > Cc: pipcet@gmail.com, 46256@debbugs.gnu.org, andrewjmoreton@gmail.com > Date: Sat, 06 Mar 2021 21:02:17 +0000 > > > Btw, do we have a way to force non-default compilation conditions for > > a particular .el file, via file-local variables? I'm thinking about > > setting comp-speed and comp-native-driver-options. That would help > > users who cannot change the C code and/or don't want to customize > > these variables globally for all compilations. > > Not ATM. I guess should be easy to implement if we have a draft of > interface we like to expose. Perhaps we should have a feature bug for > this? Done. Another idea I had related to this: since there seem to be stability issues with even the recent versions of libgccjit, we should perhaps automatically add a .el file whose native-compilation failed to the list in comp-deferred-compilation-deny-list, so that the same Emacs session won't try native-compilation of the same .el file again. WDYT? (Btw, the "deferred" part in the name of the variable sounds redundant to me, since we always compile asynchronously, except during bootstrap, which has a separate variable anyway.) > > Btw2, why are the *.eln files so big? do they include debug info, and > > if so, how to request a compilation that doesn't emit debug info? > > If they were compiled with comp-debug 0 they should have no debug symbol > (should be easy to verify with objdump tho). I didn't change comp-debug from its default, so it should be 0. > IME even if it can vary they are often like ~2-3x the size of a .elc, > but thinking about on a different architecture and with wide this might > change measurably. A data point: subr-x.elc is 16247 bytes, whereas the corresponding .eln file (for 32-bit wide-int architecture) is 90631 bytes, a 5.5 factor. If I look at the file with 'size', I get the following numbers: text data bss dec hex filename 63951 788 24784 89523 15db3 subr-x-02dfef32-17faeb1d.eln