Hi Achim, > > By checking the gcc compile option, I found there is a gcc option > > "-fno-stack-protector" provided when I compile this module by myself, > > while the option is removed when I compile with cygport. If I try > > manually compiling without this option, the same problem occurs. > > I don't know enough of how the stack protector actually is implemented > to understand why it would work without the protector and stop working > with. > > I'll see if it's possible to remove the option from within cygport, if > yo I'll have to think about any ramifications that might have.
Thanks for the responding. I just learned that stack protector is trying to prevent against buffer overflow/stack-corruption based attacks. It might not be a big issue. A crack-aware program shall simply avoid this module. And yes I believe it is complex that how stack protector have influence on this Perl module. But I think this option is just necessary. The Makefile.PL explicitly applies -fno-stack-protector option on non-MSVC compilers with 64bit target: https://metacpan.org/source/BULKDD/Win32-API-0.84/Makefile.PL#L149 SJ -- 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
