Honored ContributorHas anyone been able to get a program written in C++ (using STL) and using pthreads to run succesfully on uClinux?
Depending on which toolchain I use, I can get one or the other to work, but not both.
Honored ContributorHe have successfully developed a large application which uses STL extensively, especially container templates.
However, we weren't able to compile even the simplest application with C++ and pthreads combined. If I recall correctly, we could make a sample application run, but when we used strings, vectors, or any interesting stuff, the test program would halt. Cheers, Ricardo.Honored ContributorIn a no-MMU environment "__thread" variables are not available, this might prevent c++ in a threaded application.
In an MMU enabled environment atomic operations are not (yet) functional. This will result in a memory manager work either slow (using OS based locks) or not correctly (when trying to use the not yet implemented atomic functions). -MichaelHonored ContributorIts weird that if I compile a C program with pthreads, it works fine. But if I compile a C++ program with pthreads, it hangs at the first pthread_create call. I'm pretty fuzzy on the low level details, but why would there be a difference there?
ThanksHonored ContributorDo you have any restrictions on using the MMU Linux distribution? (http://www.nioswiki.com/linux)
It seems like it should be more capable of handling this kind of task correctly. Unfortunately, we are just starting experimenting with it, so I don't have much useful advise. Good luck, Ricardo.Honored ContributorWell, the card we are using doesn't have an MMU, so that probably won't work for me. Thanks for the advice though.
Honored ContributorMaybe you should upgrade your NIOS to an MMU enabled version...
-MichaelHonored ContributorHi I'd like to ask similar question on pthreads and C++.
I managed to compiled my application that uses pthreads using nios2-linux-uclibc-g++. So my question is whether it is best for me to run my application in nios2 with MMU or no MMU, in order to get thread atomicity etc? Thank you. Chiang
