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: Sun, 07 Mar 2021 06:57:24 +0000 Message-ID: References: <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> <83y2eztsm5.fsf@gnu.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="24353"; 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, andrewjmoreton@gmail.com, pipcet@gmail.com To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Mar 07 07:58:09 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 1lInMe-0006Dz-Tp for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 07 Mar 2021 07:58:08 +0100 Original-Received: from localhost ([::1]:36360 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lInMd-0002ek-Vw for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 07 Mar 2021 01:58:08 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:59910) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lInMY-0002ea-IU for bug-gnu-emacs@gnu.org; Sun, 07 Mar 2021 01:58:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:55513) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lInMY-0000tp-B2 for bug-gnu-emacs@gnu.org; Sun, 07 Mar 2021 01:58:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lInMY-0002Up-Ac for bug-gnu-emacs@gnu.org; Sun, 07 Mar 2021 01:58:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Andrea Corallo Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 07 Mar 2021 06:58:02 +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=B46256.16151002469548 (code B ref 46256); Sun, 07 Mar 2021 06:58:02 +0000 Original-Received: (at 46256) by debbugs.gnu.org; 7 Mar 2021 06:57:26 +0000 Original-Received: from localhost ([127.0.0.1]:38826 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lInLy-0002Tw-1h for submit@debbugs.gnu.org; Sun, 07 Mar 2021 01:57:26 -0500 Original-Received: from mx.sdf.org ([205.166.94.24]:51086) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lInLw-0002To-N7 for 46256@debbugs.gnu.org; Sun, 07 Mar 2021 01:57:25 -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 1276vOw4028720 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO); Sun, 7 Mar 2021 06:57:24 GMT In-Reply-To: <83y2eztsm5.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 07 Mar 2021 07:55:46 +0200") 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:201726 Archived-At: Eli Zaretskii writes: >> 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? Sounds good, will do. > (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.) Well we expose also `native-compile' to compile synchronously (IIRC that's also what package.el does if asked). >> > 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 What's the size of the corresponding .elc ? Thanks Andrea