From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.comp.lib.glibc.alpha,gmane.emacs.devel Subject: Re: Removal of unexec support from glibc malloc Date: Sat, 30 Jan 2016 01:38:18 -0800 Message-ID: <56AC848A.60805@cs.ucla.edu> References: <569CDB81.6040600@redhat.com> <569D3BE0.6050103@cs.ucla.edu> <569D4207.4060209@cs.ucla.edu> <83mvs2d5b2.fsf@gnu.org> <858u3meiv1.fsf@iznogoud.viz> <569D6A3E.2010009@cs.ucla.edu> <569D73D7.1080206@redhat.com> <569DD82B.20201@cs.ucla.edu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1454146713 24856 80.91.229.3 (30 Jan 2016 09:38:33 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 30 Jan 2016 09:38:33 +0000 (UTC) Cc: Eli Zaretskii , Emacs-devel@gnu.org, GNU C Library To: Florian Weimer Original-X-From: libc-alpha-return-66817-glibc-alpha=m.gmane.org@sourceware.org Sat Jan 30 10:38:32 2016 Return-path: Envelope-to: glibc-alpha@plane.gmane.org Original-Received: from server1.sourceware.org ([209.132.180.131] helo=sourceware.org) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1aPRzD-0007vt-5L for glibc-alpha@plane.gmane.org; Sat, 30 Jan 2016 10:38:31 +0100 DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:references:cc:from:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; q=dns; s=default; b=YsIASaLgIjKcqwDf /IKC1oINFTfzlaJ/N8Pi4ynNj3lTkKUgWLQ9TmpnAX1VVTTqBkuna7DHdoyw2GME XiLVW67tFL6ntmy2v8wFVHTA0wY8WUuKxVrvLq4Rz25RFCNUAWoMbXFQIFsgTFT1 qJdAb29ONTxZ/v2UD9dFR+ONN/g= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:references:cc:from:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; s=default; bh=A1PHlPP5f4a4CS6qJDei2F 6DeT8=; b=RCh7XZXhXsyEmJld8rhtaKg8rkhQLy+xnL/76IjXc6y8danmPTLXM5 wgC11VPa1eDgMvrqCel+l1JCRJndMt011Os/GAfJveCibBqPsx/aYnn7hlolSpOP 52HohW7uxHRrdYQ87ep7frJHNcruTzMqSmmq2KBLHH8aWz0H4sw1A= Original-Received: (qmail 37417 invoked by alias); 30 Jan 2016 09:38:24 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Original-Sender: libc-alpha-owner@sourceware.org Original-Received: (qmail 37397 invoked by uid 89); 30 Jan 2016 09:38:22 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD,SPF_PASS autolearn=ham version=3.3.2 spammy=glibc's X-HELO: zimbra.cs.ucla.edu User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 In-Reply-To: <569DD82B.20201@cs.ucla.edu> Xref: news.gmane.org gmane.comp.lib.glibc.alpha:59102 gmane.emacs.devel:199032 Archived-At: Paul Eggert wrote: > I'll test this more, and if it doesn't have problems then we can declare the > issue resolved, from glibc's point of view anyway. I simulated building current Emacs on future glibc by running './configure emacs_cv_var_doug_lea_malloc=no', which tells 'configure' to assume that the C library does not have the GNU malloc extensions. Although the code still seemed to work, there were some compile-time errors that suggested trouble; for example, glibc's API for the malloc hooks disagree with Emacs's replacement. To fix this I would like to install the set of patches discussed for Bug#22086, here: http://bugs.gnu.org/22086#104