X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-1.8 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,RCVD_IN_HOSTKARMA_YE,TW_NW X-Spam-Check-By: sourceware.org X-Mail-Handler: MailHop Outbound by DynDNS X-Report-Abuse-To: abuse AT dyndns DOT com (see http://www.dyndns.com/services/mailhop/outbound_abuse.html for abuse reporting information) X-MHO-User: U2FsdGVkX1/wu1LRqfXV3O7DtGB+JZJ9 Date: Sat, 14 Apr 2012 13:33:42 -0400 From: Christopher Faylor To: cygwin AT cygwin DOT com Subject: Re: gcc: turning off large-address awareness Message-ID: <20120414173342.GD15801@ednor.casa.cgf.cx> Reply-To: cygwin AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com References: <4F896504 DOT 3030006 AT cornell DOT edu> <4F89B215 DOT 9050903 AT cornell DOT edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4F89B215.9050903@cornell.edu> User-Agent: Mutt/1.5.20 (2009-06-14) 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 On Sat, Apr 14, 2012 at 01:21:25PM -0400, Ken Brown wrote: >On 4/14/2012 12:37 PM, Earnie Boyd wrote: >> On Sat, Apr 14, 2012 at 7:52 AM, Ken Brown wrote: >>> For testing purposes, I'd like to build without large-address awareness. >>> What's the right way to do that? I tried >>> >>> LDFLAGS=-Wl,--no-large-address-aware >>> >>> and >>> >>> LDFLAGS=-Wl,--disable-large-address-aware >>> >>> but both resulted in "unrecognized option" errors from ld. >> >> You specify --large-address-aware if you want it and don't specify if >> you don't want it. > >Sorry, I should have explained more clearly what the issue is. Cygwin's >gcc specifies --large-address-aware by default: > >$ gcc -dumpspecs | grep large > %{mwindows:--subsystem windows} %{mconsole:--subsystem console} >%{!mno-cygwin:%{!mno-use-libstdc-wrappers: --wrap _Znwj --wrap _Znaj > --wrap _ZdlPv --wrap _ZdaPv --wrap _ZnwjRKSt9nothrow_t --wrap >_ZnajRKSt9nothrow_t --wrap _ZdlPvRKSt9nothrow_t --wrap >_ZdaPvRKSt9nothrow_t }} %{shared: %{mdll: %eshared and mdll are not >compatible}} %{shared: --shared} %{mdll:--dll} %{static:-Bstatic} >%{!static:-Bdynamic} %{shared|mdll: --enable-auto-image-base -e >%{mno-cygwin:_DllMainCRTStartup AT 12} >%{!mno-cygwin:__cygwin_dll_entry AT 12}} >%{!mno-cygwin:--dll-search-prefix=cyg %{!shared: %{!mdll: >--large-address-aware --tsaware}}} > >I'm trying to override this default. You're right that there isn't a way to disable --large-address-aware but, since it's part of the specs, I'm not sure what would take precedence if there was a --disable* option. You could try using the above to create your own spec file and use that on the command line for gcc, cumbersome as it is. cgf -- 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