From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Rich Felker Newsgroups: gmane.emacs.bugs Subject: bug#22086: 25.1.50; [PATCH] Integrate the musl hybrid malloc patch for elf systems Date: Sun, 20 Dec 2015 23:06:28 -0500 Message-ID: <20151221040628.GW238@brightrain.aerifal.cx> References: <85poynxvgy.fsf@iznogoud.viz> <567120C0.6080803@cs.ucla.edu> <85h9jhdxl2.fsf@iznogoud.viz> <56772CB2.8060004@cs.ucla.edu> <567773F4.60000@cornell.edu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1450670842 17413 80.91.229.3 (21 Dec 2015 04:07:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 21 Dec 2015 04:07:22 +0000 (UTC) Cc: Wolfgang Jenkner , 22086@debbugs.gnu.org, Paul Eggert To: Ken Brown Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Dec 21 05:07:13 2015 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1aArkc-00048Y-6g for geb-bug-gnu-emacs@m.gmane.org; Mon, 21 Dec 2015 05:07:10 +0100 Original-Received: from localhost ([::1]:43024 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aArkb-0002C4-9O for geb-bug-gnu-emacs@m.gmane.org; Sun, 20 Dec 2015 23:07:09 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:60363) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aArkX-0002BW-IK for bug-gnu-emacs@gnu.org; Sun, 20 Dec 2015 23:07:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aArkU-0000xt-AX for bug-gnu-emacs@gnu.org; Sun, 20 Dec 2015 23:07:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:50875) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aArkU-0000xm-6n for bug-gnu-emacs@gnu.org; Sun, 20 Dec 2015 23:07:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84) (envelope-from ) id 1aArkT-0000SY-MM for bug-gnu-emacs@gnu.org; Sun, 20 Dec 2015 23:07:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Rich Felker Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 21 Dec 2015 04:07:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 22086 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 22086-submit@debbugs.gnu.org id=B22086.14506708001739 (code B ref 22086); Mon, 21 Dec 2015 04:07:01 +0000 Original-Received: (at 22086) by debbugs.gnu.org; 21 Dec 2015 04:06:40 +0000 Original-Received: from localhost ([127.0.0.1]:58477 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aArk7-0000Rz-RK for submit@debbugs.gnu.org; Sun, 20 Dec 2015 23:06:39 -0500 Original-Received: from 216-12-86-13.cv.mvl.ntelos.net ([216.12.86.13]:42177 helo=brightrain.aerifal.cx) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aArk6-0000Rr-4U for 22086@debbugs.gnu.org; Sun, 20 Dec 2015 23:06:38 -0500 Original-Received: from dalias by brightrain.aerifal.cx with local (Exim 3.15 #2) id 1aArjw-00057t-00; Mon, 21 Dec 2015 04:06:28 +0000 Content-Disposition: inline In-Reply-To: <567773F4.60000@cornell.edu> User-Agent: Mutt/1.5.21 (2010-09-15) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:110231 Archived-At: On Sun, Dec 20, 2015 at 10:37:24PM -0500, Ken Brown wrote: > On 12/20/2015 5:33 PM, Paul Eggert wrote: > >While thinking over this patch I'd like to propose what should be a > >simpler approach. This new proposal is more radical, and so should not > >be applied to the emacs-25 branch, but it should make the port to musl > >etc. automatic. > > > >The simpler approach is to remove gmalloc.c, and to use the system > >memory allocator, i.e., to behave as if SYSTEM_MALLOC is defined on all > >platforms. > > > >We can still support hybrid malloc for Cygwin, if SYSTEM_MALLOC wouldn't > >work on Cygwin for some reason; and we can support the similar hybrid on > >Darwin, if it's still needed. > > SYSTEM_MALLOC doesn't work on Cygwin, largely because Cygwin's > malloc doesn't support malloc_set_state and malloc_get_state. There > may be other problems too. (It's been a while since I tried it.) I don't see how this is possible; malloc_[gs]et_state do not exist on other systems either. Presumably this is some hack needed for the dumper, which wouldn't be needed if malloc weren't used pre-dumping. Rich