Re: [Discuss-gnuradio] Runtime AttributeError for custom block

[Vipin Sharma]

I still continue to shoot in the dark to figure this SWIG issue. I decided to run the 'make test' step as well (after 'sudo make install') step and as expected it fails as well. Looking deeper a bit (using 'ctest -V' under 'build' directory), I see one of the symbols being undefined (see below for the log). In the *_impl.cc function of the TargetDetector_cf block, I call an external cpp function named "TargetDetector" which is defined in a separate source file "TargetDetector.cpp" residing in the lib/* directory. I have made sure that I am including all relevant cpp pointers in the lib/CMakeLists.txt file as below. The 'rtNaN' symbol (from ctest error log below) is defined in rtGetNaN.cpp file which is included as well. I have no idea why this is not seen. I suspect that nothing about the custom block TargetDetect_cf (and its class derivates, etc.) are seen in GRC's python environment. For some reason, PYTHON/CPP are not happy in the GRC environment. 

I would appreciate any pointers to figure this out. Thanks, Vipin

########################################################################

# Setup library

########################################################################

include(GrPlatform) #define LIB_SUFFIX

include_directories(${Boost_INCLUDE_DIR})

link_directories(${Boost_LIBRARY_DIRS})

list(APPEND a1System_sources

    rtGetInf.cpp

    rtGetNaN.cpp  

    TargetDetector_emxAPI.cpp

    TargetDetector_emxutil.cpp

    TargetDetector.cpp

    TargetDetector_cf_impl.cc

)

address@hidden:~/a1/grcnew/gr-a1System/build$ ctest -V

UpdateCTestConfiguration  from :/home/vipin/a1/grcnew/gr-a1System/build/DartConfiguration.tcl

UpdateCTestConfiguration  from :/home/vipin/a1/grcnew/gr-a1System/build/DartConfiguration.tcl

Test project /home/vipin/a1/grcnew/gr-a1System/build

Constructing a list of tests

Done constructing a list of tests

Checking test dependency graph...

Checking test dependency graph end

test 1

    Start 1: test_a1System

1: Test command: /bin/sh "/home/vipin/a1/grcnew/gr-a1System/build/lib/test_a1System_test.sh"

1: Test timeout computed to be: 9.99988e+06

1: .

1: 

1/2 Test #1: test_a1System ....................   Passed    0.00 sec

test 2

    Start 2: qa_TargetDetector_cf

2: Test command: /bin/sh "/home/vipin/a1/grcnew/gr-a1System/build/python/qa_TargetDetector_cf_test.sh"

2: Test timeout computed to be: 9.99988e+06

2: Traceback (most recent call last):

2:   File "/home/vipin/a1/grcnew/gr-a1System/python/qa_TargetDetector_cf.py", line 24, in <module>

2:     import a1System_swig as a1System

2:   File "/home/vipin/a1/grcnew/gr-a1System/build/swig/a1System_swig.py", line 28, in <module>

2:     _a1System_swig = swig_import_helper()

2:   File "/home/vipin/a1/grcnew/gr-a1System/build/swig/a1System_swig.py", line 24, in swig_import_helper

2:     _mod = imp.load_module('_a1System_swig', fp, pathname, description)

2: ImportError: /home/vipin/a1/grcnew/gr-a1System/build/lib/libgnuradio-a1System-1.0.0git.so.0.0.0: undefined symbol: rtNaN

2/2 Test #2: qa_TargetDetector_cf .............***Failed    0.14 sec

50% tests passed, 1 tests failed out of 2

Total Test time (real) =   0.14 sec

The following tests FAILED:

 2 - qa_TargetDetector_cf (Failed)

Errors while running CTest