From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: wilde@sha-bang.de Newsgroups: gmane.emacs.devel Subject: Re: Getting ready to land native-compilation on master Date: Thu, 15 Apr 2021 13:19:35 +0200 Message-ID: <8735vrbxrs.fsf@tammy.lan.sha-bang.de> References: <83v98v7dzs.fsf@gnu.org> <87v98ox3pe.fsf@tammy.lan.sha-bang.de> <83czuwzto3.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="12680"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (berkeley-unix) Cc: akrl@sdf.org, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Apr 15 13:31:23 2021 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 1lX0DT-0003D4-7L for ged-emacs-devel@m.gmane-mx.org; Thu, 15 Apr 2021 13:31:23 +0200 Original-Received: from localhost ([::1]:38824 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lX0DS-0008Jn-96 for ged-emacs-devel@m.gmane-mx.org; Thu, 15 Apr 2021 07:31:22 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:32950) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lX0Cb-0007er-RA for emacs-devel@gnu.org; Thu, 15 Apr 2021 07:30:30 -0400 Original-Received: from mail.sha-bang.de ([2a01:4f8:110:34e1::42:1]:60143) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lX0CY-0004zl-PL; Thu, 15 Apr 2021 07:30:29 -0400 Original-Received: from tammy.sha-bang.de (dyndsl-089-166-226-124.ewe-ip-backbone.de [89.166.226.124]) by mail.sha-bang.de (Postfix) with ESMTPSA id 4C58526C; Thu, 15 Apr 2021 13:30:24 +0200 (CEST) Original-Received: by tammy.sha-bang.de (Postfix, from userid 1000) id 5406F5A79; Thu, 15 Apr 2021 13:19:35 +0200 (CEST) In-Reply-To: <83czuwzto3.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 14 Apr 2021 20:02:04 +0300") Received-SPF: none client-ip=2a01:4f8:110:34e1::42:1; envelope-from=wilde@sha-bang.de; helo=mail.sha-bang.de 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_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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:268085 Archived-At: Eli Zaretskii wrote: >> - I hat to disable memory protection on the system to make the native >> compiler work: >> sysctl -w security.pax.mprotect.global=0 >> sysctl -w security.pax.mprotect.enabled=0 >> This is not a Emacs specific problem but a problem with libgccjit >> itself. (The basic gcc jit "Hello World" example also fails with >> memory protection in place). > > I'm not sure I understand why this happens, but I think this issue > should be reported to the GCC Bugzilla. It turns out, that disabling security.pax.mprotect.global is enough, however this still poses a potential security risk and means that libgccjit can not be used on default setup of NetBSD. I created a upstream report: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100096 cheers sascha