libpyqt5_py2.so not accepted in Raspberry PI4

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23 Sep 2020 10:08 - 23 Sep 2020 10:26 #183443 by partec


EMBED_TAB_NAME= qtscreen
EMBED_TAB_COMMAND= halcmd loadusr -Wn qtvcp_embed qtvcp -d -c qtvcp_embed -x {XID} cam_align

result is a blank tab "qtscreen" in AXIS
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Last edit: 23 Sep 2020 10:26 by partec.

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24 Sep 2020 00:20 #183534 by cmorley
I'm sure you will need to compile a version for the rasberry pi.
All the supplied versions are X86 based.
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26 Sep 2020 19:17 - 26 Sep 2020 19:18 #183870 by partec
is there also an insider tip, please?
where and how to start?
Last edit: 26 Sep 2020 19:18 by partec.

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26 Sep 2020 20:56 #183883 by cmorley
Sorry, this is Kurt's writeup about what we found out to do for x86:
gist.github.com/KurtJacobson/34a2e45ea2227ba58702fc1cb0372c40
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27 Sep 2020 02:17 #183911 by partec
thanks Chris, that seems interesting for adjustment, Peter

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27 Sep 2020 12:58 - 27 Sep 2020 13:11 #183973 by partec
image for Raspberry PI4

linuxcnc-2.8.0-pi4
Linux linuxcnc 4.19.71-rt24-v7l+ #4 SMP PREEMPT RT Thu Apr 30 22:00:15 CDT 2020 armv7l GNU/Linux
(libpython-dev is included in the installation)

then according to Kurt's writeup about what was found out to do for x86:
gist.github.com/KurtJacobson/34a2e45ea2227ba58702fc1cb0372c40

pi@linuxcnc:~ $ wget sourceforge.net/projects/pyqt/files/sip/...4.19/sip-4.19.tar.gz

pi@linuxcnc:~ $ tar xzvf sip-4.19.tar.gz

pi@linuxcnc:~ $ cd sip-4.19

pi@linuxcnc:~/sip-4.19 $ python configure.py

pi@linuxcnc:~/sip-4.19 $ sudo make install

pi@linuxcnc:~/sip-4.19 $ sudo make install
make[1]: Verzeichnis „/home/pi/sip-4.19/sipgen“ wird betreten
cp -f sip /usr/bin/sip
make[1]: Verzeichnis „/home/pi/sip-4.19/sipgen“ wird verlassen
make[1]: Verzeichnis „/home/pi/sip-4.19/siplib“ wird betreten
cp -f sip.so /usr/lib/python2.7/dist-packages/sip.so
strip /usr/lib/python2.7/dist-packages/sip.so
cp -f /home/pi/sip-4.19/siplib/sip.h /usr/include/python2.7/sip.h
cp -f /home/pi/sip-4.19/sip.pyi /usr/lib/python2.7/dist-packages/sip.pyi
make[1]: Verzeichnis „/home/pi/sip-4.19/siplib“ wird verlassen
cp -f sipconfig.py /usr/lib/python2.7/dist-packages/sipconfig.py
cp -f /home/pi/sip-4.19/sipdistutils.py /usr/lib/python2.7/dist-packages/sipdistutils.py
pi@linuxcnc:~/sip-4.19 $ cd ./..

$ qtchooser -list-versions
bash: qtchooser: command not found

$ export QT_SELECT=qt5
$ qmake --version
bash: qmake: command not found

Build and install PyQt5

$ wget sourceforge.net/projects/pyqt/files/PyQt...Qt5_gpl-5.7.1.tar.gz
$ tar xzvf PyQt5_gpl-5.7.1.tar.gz
$ cd PyQt5_gpl-5.7.1
$ python configure.py
$ make
$ sudo make install

pi@linuxcnc:~ $ cd PyQt5_gpl-5.7.1
pi@linuxcnc:~/PyQt5_gpl-5.7.1 $ python configure.py
Error: Use the --qmake argument to explicitly specify a working Qt qmake.
pi@linuxcnc:~/PyQt5_gpl-5.7.1 $

pi@linuxcnc:~/PyQt5_gpl-5.7.1 $ make
make: *** Es wurden keine Ziele angegeben und keine „make“-Steuerdatei gefunden. Schluss.
pi@linuxcnc:~/PyQt5_gpl-5.7.1 $

was not possible to do

Launch Qt5 Designer
Use the PYQTDESIGNERPATH environment variable to tell QtDesiner where to look for the plugins
$ export PYQTDESIGNERPATH='/path/to/plugin/directory/'

Launch Qt5 Designer
$ qtchooser -run-tool=designer -qt=5

arm-linux-gnueabihf
/usr/lib/arm-linux-gnueabihf/qt5/plugins/designer/

libpyqt5.so
libqquickwidget.so
libqwebview.so

found

/usr/lib/python2.7/dist-packages/qtvcp/designer/x86_64/qt5.7/

but
pi@linuxcnc:~ $ locate qtvcp_plugin.py
pi@linuxcnc:~ $

link not possible

libpyqt5_py2.so 08.07.2018

says

'/usr/lib/arm-linux-gnueabihf/qt5/plugins/designer/libpyqt5_py2.so' is an invalid ELF object (wrong CPU architecture)
Last edit: 27 Sep 2020 13:11 by partec.

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27 Sep 2020 22:14 #184070 by scotta
Or, maybe try one pre-compiled for Raspberry Pi.

github.com/scottalford75/LinuxCNC-on-RPi/tree/master/PyQt5

BR

Scott
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27 Sep 2020 23:12 - 27 Sep 2020 23:12 #184076 by partec
thank you Scott, unfortunately it did not help yet!

it says still

'/usr/lib/arm-linux-gnueabihf/qt5/plugins/designer/libpyqt5_py2.so' is an invalid ELF object (wrong CPU architecture)

should we find a suitable libpyqt5_py2.so may be?

BR

Peter
Last edit: 27 Sep 2020 23:12 by partec.

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23 Apr 2022 17:54 #241010 by ajsinfotech
Hi cmorley,

I am working on a RPi4.
I manage to build and run Qt5/PyQt5 from source but I get the following:
 
 

Where can I find the libpyqt5_py2.so pluging binary for RPi4?
If not, where can a find the source and build instructions to build a brand new libpyqt5_py2.so plugin for RPi4?

I think it is a platform conflict, so it seems making a rebuild for RPi could be work. 

Thanks!
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23 Apr 2022 20:41 #241021 by tommylight
@ ajsinfotech
No double posting, please, it makes it very hard to follow for members why are trying to help you.
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