From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: GC and stack marking Date: Wed, 21 May 2014 19:55:03 +0300 Message-ID: <8338g3nkbc.fsf@gnu.org> References: <83a9add91p.fsf@gnu.org> <8338g4bd7m.fsf@gnu.org> <83wqdgntan.fsf@gnu.org> <83ppj7oniv.fsf@gnu.org> <838upvnnsq.fsf@gnu.org> <537CCCF6.6020509@yandex.ru> <537CCF1F.4040807@yandex.ru> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1400691315 17522 80.91.229.3 (21 May 2014 16:55:15 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 21 May 2014 16:55:15 +0000 (UTC) Cc: fabrice.popineau@gmail.com, monnier@iro.umontreal.ca, emacs-devel@gnu.org To: Dmitry Antipov Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed May 21 18:55:08 2014 Return-path: Envelope-to: ged-emacs-devel@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 1Wn9nH-0001ZK-1N for ged-emacs-devel@m.gmane.org; Wed, 21 May 2014 18:55:07 +0200 Original-Received: from localhost ([::1]:60982 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Wn9nG-0006Su-O1 for ged-emacs-devel@m.gmane.org; Wed, 21 May 2014 12:55:06 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:33295) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Wn9n8-0006Pk-Sz for emacs-devel@gnu.org; Wed, 21 May 2014 12:55:03 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Wn9n4-0003HV-0E for emacs-devel@gnu.org; Wed, 21 May 2014 12:54:58 -0400 Original-Received: from mtaout28.012.net.il ([80.179.55.184]:38697) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Wn9n3-0003FX-OY for emacs-devel@gnu.org; Wed, 21 May 2014 12:54:53 -0400 Original-Received: from conversion-daemon.mtaout28.012.net.il by mtaout28.012.net.il (HyperSendmail v2007.08) id <0N5X00700O4WBP00@mtaout28.012.net.il> for emacs-devel@gnu.org; Wed, 21 May 2014 19:52:56 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by mtaout28.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0N5X002NQO888M50@mtaout28.012.net.il>; Wed, 21 May 2014 19:52:56 +0300 (IDT) In-reply-to: <537CCF1F.4040807@yandex.ru> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 80.179.55.184 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:171997 Archived-At: > Date: Wed, 21 May 2014 20:06:55 +0400 > From: Dmitry Antipov > CC: fabrice.popineau@gmail.com, Stefan Monnier , > emacs-devel@gnu.org > > 4) mark_stack calls __builtin_unwind_init to save registers onto the stack. So if you stop > at Fgarbage_collect's stack frame, you don't scan the frame of mark_stack too and may > loose Lisp_Objects accessible from registers. We could call __builtin_unwind_init in Fgarbage_collect, no?