Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Date: Mon, 21 Jun 2004 18:56:53 +0400 From: 3APA3A <3APA3A AT SECURITY DOT NNOV DOT RU> Reply-To: 3APA3A <3APA3A AT SECURITY DOT NNOV DOT RU> Organization: http://www.security.nnov.ru Message-ID: <419004530.20040621185653@SECURITY.NNOV.RU> To: cygwin AT cygwin DOT com Subject: Compiling DLLs to be used from native Win32 application MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Dear cygwin AT cygwin DOT com, I saw this problem was raised for few times on list, but do not see final solution. I want to create native Windows frontend to cygwin-based dynamic library. What I did: 1. I did DLL, it works fine with cygwin application. 2. If I try to use it from native application it hangs on LoadLibrary. 3. I did DllMain function with impure_ptr initialization and finally compiled as described in FAQ. 4. Now DLL loads and simple functions (for example strcpy()/ctrcat() based) work OK, but any "syscall" from DLL to cygwin function (for example printf()) causes NULL pointer reference. Is subj possible? May be some additional initialization is required? -- http://www.security.nnov.ru /\_/\ { , . } |\ +--oQQo->{ ^ }<-----+ \ | ZARAZA U 3APA3A } You know my name - look up my number (The Beatles) +-------------o66o--+ / |/ -- 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/