OOT blocks in 3.8 not working

[Robert Meyer]

Hello,

 

I am trying move a project I have from gnuradio 3.7 to 3.8 and I am having some difficulties.

 

I have went through the gr_modtool tutorial in 3.8, and was able to get the square_fft block to build and run inside of gr-howto, but making the same block in my module (gr-nuclear) doesn’t work. 

 

Some of the errors I suspected were from dependencies, and I think that I have added them in correctly.  Those dependencies are UHD and libomnithread:

 

 

To include UHD I:

• Added the following to the CMakeLists.txt based on gr-foo: (in the gr-nuclear’s directory, not in /lib/)

 

I added this to the Compiler Specific setup section:

 

find_package(UHD)

if(NOT UHD_FOUND)

                message(STATUS “UHD library not found, no support for timed TX”)

                set(UHD_INCLUDE_DIRS “”)

                set(UHD_LIBRARY_DIRS “”)

                set(UHD_LIBRARIES “”)

else()

                message(STATUS “UHD library found.”)

                set(UHD_INCLUDE_DIRS “”)

                set(UHD_LIBRARY_DIRS “”)

                set(UHD_LIBRARIES “”)

endif()

 

and I added this in the project setup section:

 

list(INSERT CMAKE_MODULE_PATH 0 “/path/to/uhd/module”)

 

 

• Added the following to the CMakeList.txt in the /lib/ directory

 

Added <${UHD_INCLUDE_DIRS}> to include_directories()

Added <$UHD_LIBRARY_DIRS}> to link_directories()

 

 

 

 

 

To include libomnithread4 I;

• I had to purge all of libomnithread, and install the latest omniorb package.  After that I added the following to the target_link_libraries() list in the CMakeLists.txt file in /lib/

 

/usr/lib/x86_64-linux-gnu/libomnithread.so.4

 

• I was getting an error that omnithread.h was not in the include folder while building, so I moved omnithread.h to the include/nuclear/ directory, and after that I was able to build the project without errors. 

 

 

 

 

But once I try to launch my project I get “AttributeError: module ‘nuclear’ has no attribute ‘radio_init’, which is one of the blocks of my OOT module.

 

I’m not sure if this is related, but while launching I also get the warning:

 

“Warning: restarting the docstring loader (crashed while loading ‘uhd_amsg_source’)”

 

When I go into the build/swig directory and run python3.6, I tried to import my module the same way that __init__.py uses it and I get this error

 

How I imported:

                from .nuclear_swig import *

 

Error I get:

ModuleNotFoundError: No module named ‘__main__.nuclear_swig’; ‘__main__’ is not a package

 

 

I have tried removing the ‘.’ Which was recommended when I looked into this problem online, but that did not solve it

 

 

Before include the two modules, trying to import .nuclear_swig was segfaulting, so it seems like I have made at least some progress.

 

 

Does anyone have some ideas of what I could be missing/doing wrong?

 

Thank you

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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