X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-4.9 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,KHOP_RCVD_TRUST,KHOP_THREADED,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE X-Spam-Check-By: sourceware.org MIME-Version: 1.0 In-Reply-To: <4F915E65.8070608@gmail.com> References: <4F915E65 DOT 8070608 AT gmail DOT com> Date: Fri, 20 Apr 2012 15:07:17 +0200 Message-ID: Subject: Re: Why /usr/bin/*.dll must be executable? From: =?UTF-8?Q?V=C3=A1clav_Zeman?= To: cygwin AT cygwin DOT com Content-Type: text/plain; charset=UTF-8 X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: 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 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id q3KD8LhT008061 On 20 April 2012 15:02, De-Jian Zhao wrote: > Hi, > > When I type "cyg" and Tab, many executables starting with "cyg" are listed > (Display all 262 possibilities? (y or n) y). I find that many of them are > *.dll libraries under /usr/bin/. This is inconvenient to find the real > executable applications (*.exe). Since *.dll files are only libraries, they > are not necessary to have the attribute of "x". Thus, I run the command > "chmod a-x /usr/bin/*.dll". Unexpectedly, cygwin is corrupted. I closed the > terminal and failed to restart Cygwin. I started my  older version of Cygwin > (I did not deleted it after installing a new version), and added "x" to the > previous *.dll files. The dead Cygwin revived. > > I am confused why /usr/bin/*.dll should be executable. I thought they were > only library files. When I tried to run a dll file, bash says "cannot > execute binary file". Are there some hidden stories? DLLs are executables thus they need the +x bit. This is a Windows thing. >[...] -- VZ -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple