foundry27 : Post

Forum Topic - __cxa_guard_*: (5 Items)

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Mario Charest

09/19/2007 2:57 PM

post1423

When linking a C++ program with 4.2.1 the linker complains that __cxa_guard_* are undefined behavior.  I try forcing it 
to link with libstdc++.  That solved the link issue ( but I don't think that's right)

First libstdc++.so.6 cannot be found at run time because they are no link to it in /usr/lib.

Once I copied the libstdc++.so.x to /usr/lib the program would crash before main().

For now I got around the problem by using -fno-threadsafe-statics.  Program doesn't use thread, for now.

Ryan Mansfield(deleted)

09/19/2007 3:03 PM

post1426

Re: __cxa_guard_*

Hi Mario,

Did you see my reply to the following post?

http://community.qnx.com/sf/discussion/do/listPosts/projects.toolchain/discussion.core_development_tools.topc1051

You can either download the updated gcc 4.2.1 package or objcopy libsupc++ to libcxa. Please let me know if you have any
 questions.

Regards,

Ryan Mansfield

Mario Charest

09/19/2007 3:34 PM

post1428

Re: __cxa_guard_*

I missed that post.  Problem solved thanks!

Colin Burgess(deleted)

09/19/2007 3:39 PM

post1429

Re: __cxa_guard_*

That should probably be the first thing that people see when they go to 
the 4.2.1 page, until it's resolved. :-)

Mario Charest wrote:
>
> I missed that post.  Problem solved thanks!
>
> _______________________________________________
> General
> http://community.qnx.com/sf/go/post1428
>

-- 
cburgess@qnx.com

Ryan Mansfield(deleted)

09/19/2007 3:55 PM

post1430

Re: __cxa_guard_*

Well, it is resolved now. The packages were updated shortly after Ken pointed out the problem. When I updated the 
packages, the number of downloads of the effect packages was very low. So only the eager people got bitten by my error. 


Regards,

Ryan Mansfield

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