Mike
This was very VERY helpful! Thank you for the guidance!
Dennis
-----------------------------------------From: "Mike via USRP-users"
To: usrp-users@lists.ettus.com
Cc:
Sent: Friday February 19 2021 5:55:34PM
Subject: Re: [USRP-users] gr-ettus Cross-Compile "Target
'gnuradio::runtime_swig' not found."
This is good information and helped me out with my cross-compiler
issues.
So, for posterity, my setup is as follows:
1. Ubuntu 18.04LTS
2. UHD4.0 (gitbranch UHD-4.0)
3. GNU Radio (gitbranch maint-3.8)
4. gr-ettus (gitbranch maint-3.8-uhd4.0)
These were installed on the host using pybombs with the recipe
modified
for the branches listed previously.
Next, I downloaded the SDK with "uhd_images_downloader -t e310 -t
sdk"
and installed into a new cross compile directory (~/prefix/gr38/oe)
Next, I added python-six and added the following PYTHONPATH line in
the
script that sources the cross-compiling environment variables:
export
PYTHONPATH=/home/mike/prefix/gr38/oe/sysroots/cortexa9t2hf-neon-oe-linux-gnueabi/usr/lib/python3.7/site-packages/:$PYTHONPATH
Note: this is in addition to what was previously instructed which
was:
export
PYTHONPATH=/home/mike/prefix/gr38/oe/sysroots/x86_64-oesdk-linux/usr/lib/python2.7/site-packages/
Bottom line is to inspect the output of gnuradio cmake to ensure that
all python related items are found properly
For cross compiling I used the following cmake directives for each
item
1. UHD4.0 - cmake
-DCMAKE_TOOLCHAIN_FILE=../host/cmake/Toolchains/oe-sdk_cross.cmake
-DCMAKE_INSTALL_PREFIX=/usr -DENABLE_E300=ON -DENABLE_GPSD=ON ..
Note: I tried this with setting -DRUNTIME_PYTHON_EXECUTABLE=python2
but
it did not compile
2. GNU Radio - cmake -Wno-dev -DPYTHON_EXECUTABLE=/usr/bin/python2
-DCMAKE_TOOLCHAIN_FILE=~/prefix/gr38/src/gnuradio/cmake/Toolchains/oe-sdk_cross.cmake
-DENABLE_INTERNAL_VOLK=OFF -DENABLE_GR_WXGUI=OFF
-DENABLE_GR_VOCODER=OFF
-DENABLE_GR_DTV=OFF -DENABLE_GR_ATSC=OFF -DENABLE_DOXYGEN=OFF
-DCMAKE_ASM_COMPILER_ARG1:STRING="-mcpu=cortex-a9"
-DCMAKE_INSTALL_PREFIX=/usr ../
Big point here is -DPYTHON_EXECUTABLE=/usr/bin/python2
3. gr-ettus - cmake
-DCMAKE_TOOLCHAIN_FILE=~/prefix/gr38/src/gnuradio/cmake/Toolchains/oe-sdk_cross.cmake
-DCMAKE_INSTALL_PREFIX=/usr -DENABLE_QT=OFF -DENABLE_DOXYGEN=OFF ..
Linus seems to be a moving target so what works one day may not work
the
next. That's why I try to document what configuration worked for me.
Hope this helps,
Mike
On 2/19/21 11:17 AM, Marcus Müller via USRP-users wrote:
> Glad you solved it! Still, should work with Python3 – GNU Radio
3.8 (and later) is Python
> 3 compatible (with 3.8 being the only release line of GNU Radio to
support both Py2 and Py3).
>
> However, you're right, your CMake detects and chooses Python 2.7
(it can use either), and
> if you then try to link against Python 3.x, it would indeed fail.
>
> Best regards,
>
> Marcus
>
> DISCLAIMER: Any attached Code is provided As Is. It has not been
tested or validated as a product, for use in a deployed application or
system, or for use in hazardous environments. You assume all risks for
use of the Code. Use of the Code is subject to terms of the licenses
to the UHD or RFNoC code with which the Code is used. Standard
licenses to UHD and RFNoC can be found at
https://www.ettus.com/sdr-software/licenses/.
/> >
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>
> On 19.02.21 17:05, dtra...@tampabay.rr.com wrote:
>> Marcus
>>
>> I resolved the issue. Apparently, I needed to cross-compile
GnuRadio with python2
>> instead of python3.
>>
>> Dennis
>>
>> -----------------------------------------
>>
>> From: dtra...@tampabay.rr.com
>> To: "Marcus Müller"
>> Cc: "usrp-users@lists.ettus.com"
>> Sent: Friday February 19 2021 9:26:25AM
>> Subject: Re: [USRP-users] gr-ettus Cross-Compile "Target
'gnuradio::runtime_swig' not
>> found."
>>
>> Hi Marcus. Here is the info. I think this is the correct version,
but let me know what
>> you think.
>>
>> labuser@EttusDevel4:~/rfnoc/src/gr-ettus/build-arm$ which cmake
>> /home/labuser/rfnoc/oe/sysroots/x86_64-oesdk-linux/usr/bin/cmake
>> labuser@EttusDevel4:~/rfnoc/src/gr-ettus/build-arm$ cmake
--version
>> cmake version 3.15.3
>>
>> CMake suite maintained and supported by Kitware
(kitware.com/cmake).
>>
>>
>> -----------------------------------------
>>
>> From: "Marcus Müller via USRP-users"
>> To: usrp-users@lists.ettus.com
>> Cc:
>> Sent: Friday February 19 2021 9:12:18AM
>> Subject: Re: [USRP-users] gr-ettus Cross-Compile "Target
'gnuradio::runtime_swig' not
>> found."
>>
>> Hi Dennis,
>>
>> that's probably not the case here but I've seen similar with
installations where older
>> CMake with newer CMake libraries were present (or vice versa).
What does `cmake
>> --version` say?
>> Don't have an E310 SDK at hand to check myself, but when you run
`which cmake`, is that
>> the cmake you want to run, or is there a different one that's in
>> /home/labuser/rfnoc/oe/sysroots/x86_64-oesdk-linux/usr/bin ?
>>
>> Best regards,
>> Marcus
>>
>>
>>
>> _______________________________________________
>> USRP-users mailing list
>> USRP-users@lists.ettus.com
>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
/> >>
/> >> />
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