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pmp-p / pydk

An universal Python/pip+Panda3d build framework for Pythons Everywhere ( and Everyone )
https://github.com/pmp-p/pydk
MIT License
40 stars 4 forks source link

freetype/harfbuzz may conflict with os bundled libs #3

Closed rowend36 closed 4 years ago

rowend36 commented 6 years ago

Not sure if this is still alive but on an android 4.4.2 kitkat, panda3d causes this error back (most recent call last): File "", line 1, in ImportError: dlopen failed: could not load library "libpanda.so" needed by "core.cpython-37m.so"; caused by could not load library "libpandaexpress.so" needed by "libpanda.so"; caused by could not load library "libandroid.so" needed by "libpandaexpress.so"; caused by could not load library "libandroid_runtime.so" needed by "libandroid.so"; caused by cannot locate symbol "hb_utf16_script_run_next" referenced by "libandroid_runtime.so"...

pmp-p commented 6 years ago

This is fully alive, but i currently don't have time to adjust to python 3.7 final, also loading panda3d need a dynamic linker script in panda3d/__init__.py ( it's hacky I may have forgot to bundle it). Does python3 work fine on its own ? Also please understand i can only fully support H3Droid "out-of-the-box". But If you are willing to test on other platform i'll try to do my best and send you some panda3d test code.

It looks like a harfbuzz/freetype.so problem so maybe try to first load libfreetype.so manually

the panda3d/__init__.py hack is https://gist.github.com/pmp-p/4946692ec65f8825369f68642a2ac5da , should be in /data/data/u.r/usr/lib/python3.7/site-packages/panda3d you just need to call "import panda3d" to test it

rowend36 commented 6 years ago

The init.py hack is bundled for 3.7 but not 3.5. But that's not the issue. The problem seems to stem from that there is another libharfbuzz.so with different functions in the /system/lib directory. The libharfbuzz.so seems similar in byte code to another libharfbuzz_ng.so in the same directory but contains less functions. I'm considering either recompiling or just patching elf.

rowend36 commented 6 years ago

Problem solved by renaming the bundled libharfbuzz and patching libpanda to reference it. I think we can close this issue. In the future, we might have to compile panda3d with the new renamed harfbuzz ie "harfburz".

pmp-p commented 5 years ago

@ROWEND36, please could you try https://github.com/pmp-p/pydk/releases/tag/v0.2 demo apk to see if problem persists with python3.7.2 and panda 1.10 ?

pmp-p commented 4 years ago

dynamic loading of libraries is now properly fixed, maybe not for python modules i think that's ouside pydk scope of work.