Undefined symbol when importing module in python
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Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 25/100
Research direction
Start by comparing the expected and exported symbols in libboost_python39.so.1.78.0 against the shown ConnectionFactory exposure on Ubuntu 18.04. Review the objcopy workaround and determine whether the mismatch is reproducible and whether it indicates a Boost.Python or build configuration problem.
Written by the indexing model from the issue text.
Description
Hi guys
I''m trying to use boost python and then I'm exposing simple class i get
undefined symbol: _ZN5boost6python15instance_holder8allocateEP7_objectmm
I checked symbols in libboost_python39.so.1.78.0 and i noticed that exist following symbol
_ZN5boost6python15instance_holder8allocateEP7_objectmmm (one m more than expected)
So am I doing sth wrong or this is a bug?
My class
struct ConnectionFactory
{
ConnectionFactory(){}
~ConnectionFactory(){}
};
Exposing by:
class_<ConnectionFactory>("ConnectionFactory");
Linux Ubuntu 18.04
EDIT:
I made a workaround, just modifying expected symbol using this
objcopy --redefine-sym _ZN5boost6python15instance_holder8allocateEP7_objectmm=_ZN5boost6python15instance_holder8allocateEP7_objectmmm myFile.o
And this is working, but i'm not sure if this is correct approach
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