Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com To: Ralf.Habacker@freenet.de Cc: binutils@sources.redhat.com, cygwin@cygwin.com, kde-cygwin@kde.org Subject: Re: [PATCH] gcc3/ld patch for direct-linking-to-dll and auto-import support References: <004d01c36d9e$e7433e70$ca5e07d5@BRAMSCHE> From: Nick Clifton Date: Sun, 07 Sep 2003 19:30:40 +0100 In-Reply-To: <004d01c36d9e$e7433e70$ca5e07d5@BRAMSCHE> (Ralf Habacker's message of "Thu, 28 Aug 2003 21:59:34 +0200") Message-ID: User-Agent: Gnus/5.1001 (Gnus v5.10.1) Emacs/21.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Hi Ralf, > while compiling trolltechs qt/xfree library with gcc3 (3.2x) on > cygwin I recognized, that the auto-import stuff in combination of > recent ld does not work in case of const variables in a dll when > using direct linking to a dll, because gcc put those variables into > a readonly, that means the .text section. > > The patch and a testcase is appended. A documentation could be found > in the patch file. Are you sure that the current linker does not work ? When I tried it, using the test case you supplied, but without the patch applied, I got this: % make ../gcc/g++ -B ../gcc/ -g -save-temps -c -o dll.o dll.cc ../gcc/g++ -B ../gcc/ -g --shared -L ../i686-pc-cygwin/newlib -L ../i686-pc-cygwin/libstdc++-v3/src/.libs dll.o -o dll.dll ../gcc/g++ -B ../gcc/ -g -save-temps -c -o client.o client.cc ../gcc/g++ -B ../gcc/ -g -o client client.o -L ../i686-pc-cygwin/newlib -L ../i686-pc-cygwin/libstdc++-v3/src/.libs -L. -ldll Info: resolving _var by linking to __imp__var (auto-import) Info: resolving test::var by linking to __imp___ZN4test3varE (auto-import) Cheers Nick -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/