Understood. I'm asking, in principle, as to whether we should use -z noexecstack for the whole thing -- i.e., is this just a good "best practice" kind of flag we should enable?
On Jul 25, 2014, at 12:02 PM, Ralph Castain <r...@open-mpi.org> wrote: > I think it's just libmpi_java that needs that linker flag, so it shouldn't > affect anyone else > > On Jul 25, 2014, at 8:59 AM, Jeff Squyres (jsquyres) <jsquy...@cisco.com> > wrote: > >> OMPI developers -- >> >> Is "-z noexecstack" a linker option we should test for in configure, and use >> it if it works? >> >> Are there any side effects that could cause problems? >> >> >> Begin forwarded message: >> >>> From: Siegmar Gross <siegmar.gr...@informatik.hs-fulda.de> >>> Subject: [OMPI users] missing link option for openmpi-1.8.2rc2 on Linux >>> Date: July 25, 2014 at 2:44:48 AM EDT >>> To: <us...@open-mpi.org> >>> Reply-To: Siegmar Gross <siegmar.gr...@informatik.hs-fulda.de>, Open MPI >>> Users <us...@open-mpi.org> >>> >>> Hi, >>> >>> I installed openmpi-1.8.2rc2 on "openSUSE Linux 12.1 x86_64" >>> with Sun C 5.12 and get the following warning if I run a small >>> Java program. I get no warning for my gcc-4.9.0 version of >>> openmpi-1.8.2rc2. >>> >>> >>> linpc1 java 109 mpiexec -np 1 java InitFinalizeMain >>> Java HotSpot(TM) 64-Bit Server VM warning: You have loaded library >>> /usr/local/openmpi-1.8.2_64_cc/lib64/libmpi_java.so.1.2.0 which >>> might have disabled stack guard. The VM will try to fix the stack >>> guard now. >>> It's highly recommended that you fix the library with >>> 'execstack -c <libfile>', or link it with '-z noexecstack'. >>> Hello! >>> linpc1 java 110 >>> >>> >>> I would be grateful if somebody can add the link option >>> '-z noexecstack' to omit the warning. Thank you very much for >>> your help in advance. >>> >>> >>> Kind regards >>> >>> Siegmar >>> >>> _______________________________________________ >>> users mailing list >>> us...@open-mpi.org >>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >>> Link to this post: >>> http://www.open-mpi.org/community/lists/users/2014/07/24871.php >> >> >> -- >> Jeff Squyres >> jsquy...@cisco.com >> For corporate legal information go to: >> http://www.cisco.com/web/about/doing_business/legal/cri/ >> >> _______________________________________________ >> devel mailing list >> de...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel >> Link to this post: >> http://www.open-mpi.org/community/lists/devel/2014/07/15267.php > > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2014/07/15268.php -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
