From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Tom Tromey Newsgroups: gmane.emacs.devel Subject: Re: 32-bit MinGW build with JIT Date: Sun, 19 Aug 2018 09:24:37 -0600 Message-ID: <87k1omgz0q.fsf@tromey.com> References: <838t56iet0.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1534692212 31139 195.159.176.226 (19 Aug 2018 15:23:32 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 19 Aug 2018 15:23:32 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.50 (gnu/linux) Cc: Tom Tromey , emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Aug 19 17:23:28 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1frPY5-0007xO-Tp for ged-emacs-devel@m.gmane.org; Sun, 19 Aug 2018 17:23:26 +0200 Original-Received: from localhost ([::1]:43149 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1frPaC-0001nm-5y for ged-emacs-devel@m.gmane.org; Sun, 19 Aug 2018 11:25:36 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:52185) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1frPZY-0001nC-9G for emacs-devel@gnu.org; Sun, 19 Aug 2018 11:24:57 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1frPZT-0000YP-Ci for emacs-devel@gnu.org; Sun, 19 Aug 2018 11:24:56 -0400 Original-Received: from gateway33.websitewelcome.com ([192.185.145.190]:38738) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1frPZT-0000Tj-76 for emacs-devel@gnu.org; Sun, 19 Aug 2018 11:24:51 -0400 Original-Received: from cm16.websitewelcome.com (cm16.websitewelcome.com [100.42.49.19]) by gateway33.websitewelcome.com (Postfix) with ESMTP id 449901C6D55 for ; Sun, 19 Aug 2018 10:24:39 -0500 (CDT) Original-Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with SMTP id rPZHfwPtaaSeyrPZHfSKfR; Sun, 19 Aug 2018 10:24:39 -0500 X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=DoOiCq+uS6trK96PfsICH93fV021uWDkSLp2Gmnf1G8=; b=WAtwXT5UVJVBfNdHuJqZM7ZljP uSfOVIrPKeco2++GopWfrPVPJEB5MCvN5cHElGxvPi90y7qyCJY9RCdhjgiGWMdOM4egaOeKNQyJ/ liU41qxorFE+KKSu5Qt2n+4T7; Original-Received: from 75-166-85-72.hlrn.qwest.net ([75.166.85.72]:51156 helo=bapiya) by box5379.bluehost.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1frPZG-002Ehn-NZ; Sun, 19 Aug 2018 10:24:38 -0500 X-Attribution: Tom In-Reply-To: <838t56iet0.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 16 Aug 2018 17:09:15 +0300") X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - gnu.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 75.166.85.72 X-Source-L: No X-Exim-ID: 1frPZG-002Ehn-NZ X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 75-166-85-72.hlrn.qwest.net (bapiya) [75.166.85.72]:51156 X-Source-Auth: tom+tromey.com X-Email-Count: 3 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 192.185.145.190 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.devel:228683 Archived-At: >>>>> "Eli" == Eli Zaretskii writes: Eli> I'm not yet sure what causes this, but since I presume that the branch Eli> was successfully built on a 64-bit host, I suspect some snafu with Eli> pointers that are narrower than 64-bit integers. Thanks for trying this. I'm very ill so I haven't been able to look into this code. I will when I'm able. Also I'm about 1/4 of the way through converting it to use gcc-jit, so we can see how well that works. Eli> All the libjit types are "incomplete" as far as Eli> GDB is concerned, there are no facilities to display libjit types and Eli> values in human-readable form, C-level backtraces show ?? when a JIT Eli> compiled function is called, etc. I built my own libjit with debuginfo and IIRC that was good enough for normal things. For stack traces through JIT code, you need the gdb unwinder I wrote. It hasn't been checked in to libjit yet: http://lists.gnu.org/archive/html/libjit/2018-02/msg00014.html I only made this work for x86-64 but porting it shouldn't be too hard. Tom