From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 23854 invoked by alias); 12 Jan 2015 17:54:07 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 23842 invoked by uid 89); 12 Jan 2015 17:54:06 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.2 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 X-HELO: relay1.mentorg.com Received: from relay1.mentorg.com (HELO relay1.mentorg.com) (192.94.38.131) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 12 Jan 2015 17:54:05 +0000 Received: from svr-orw-fem-03.mgc.mentorg.com ([147.34.97.39]) by relay1.mentorg.com with esmtp id 1YAjBh-00017A-Ur from Zach_Welch@mentor.com ; Mon, 12 Jan 2015 09:54:01 -0800 Received: from [127.0.0.1] (147.34.91.1) by svr-orw-fem-03.mgc.mentorg.com (147.34.97.39) with Microsoft SMTP Server id 14.3.224.2; Mon, 12 Jan 2015 09:54:01 -0800 Message-ID: <54B40A39.5000106@codesourcery.com> Date: Mon, 12 Jan 2015 17:54:00 -0000 From: Zach Welch User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: Joel Brobecker CC: Subject: Re: [PATCH] Fix gdbserver build with x86_64-w64-mingw32 -m32 References: <1420825778-8946-1-git-send-email-zwelch@codesourcery.com> <20150110041728.GQ5445@adacore.com> In-Reply-To: <20150110041728.GQ5445@adacore.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-SW-Source: 2015-01/txt/msg00310.txt.bz2 On 01/09/2015 08:17 PM, Joel Brobecker wrote: >> This patch allows a x86_64-w64-mingw32 toolchain to build a 32-bit >> gdbserver. Without it, gdbserver attempts to link to the 64-bit >> register files, resulting in undefined references. >> >> * configure.ac: Add check for -m32 on x86_64-*-mingw*. >> * configure.srv: If using -m32 on x86_64-*-mingw*, use i386 >> instead of amd64 registers. >> * configure: Regenerated. >> * aclocal.m4: Regenerated. > > Intuitively, I would say that the proper way to achive a 32bit > gdbserver is by configuring it using a 32bit triplet, no? > What happens if you do: > > ./configure --build=i686-pc-mingw32 CFLAGS='-m32' Actually, I am using i686-pc-linux-gnu as $build. I think you meant to ask for --host. I am using --host=x86_64-w64-mingw32 CFLAGS=-m32, which is distinctly different than i686-pc-mingw32. For example, they use completely different runtime libraries. I think it would be an error to conflate the two toolchains. Thus, I stand by my patch as the correct solution for this issue. -- Zach Welch Mentor Graphics Corporation zwelch@codesourcery.com (503) 685-5434