Re: Help: undefined symbol: _ZdlPvj

$ c++filt _ZdlPvj
operator delete(void*, unsigned int)

To me you have some sort of compiler setup/installation issue. Best to
consult some c++ forums.

William


On Sun, 21 May 2023 at 09:55, Patrick Good <[email protected]> wrote:

> Hello
>
>
> I use swig with python.
> The environment I use is PetaLinux/Yocto to build the project. Currently
> the project is just a small test code to try to run it to test the
> interface. SWIG version is 4.1.1, Python version is: 3.9.9.
>
> *Error:*
>
> root@mz7010-som-base-2022-1:~# python3
> Python 3.9.9 (main, Nov 15 2021, 18:05:17)
> [GCC 11.2.0] on linux
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import Sytemtechnik.libsysproject
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
> ModuleNotFoundError: No module named 'Sytemtechnik'
> >>> import Systemtechnik.libsysproject
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/usr/lib/python3.9/Systemtechnik/libsysproject.py", line 10, in
> <module>
>     from . import _libsysproject
> ImportError: /usr/lib/python3.9/Systemtechnik/_libsysproject.so: undefined
> symbol: _ZdlPvj
>
>
> *Makefile:*
>
> APP = libsysproject
>
> LIBSOURCES=*.cpp
>
> OUTS = *.o
>
> NAME := sysproject
>
> MAJOR = 1.0
>
> MINOR = 1
>
> VERSION = $(MAJOR).$(MINOR)
>
> all: lib$(NAME).so
>
> lib$(NAME).so.$(VERSION): compile
>
> # $(CC) $(LDFLAGS) $(OUTS) -shared -Wl,-soname,_lib$(NAME).so.$(MAJOR) -o
> _lib$(NAME).so.$(VERSION)
>
> $(CC) libsysproject.o libsysproject_wrap.o -shared -o _lib$(NAME).so
>
> lib$(NAME).so: lib$(NAME).so.$(VERSION)
>
> #rm -f _lib$(NAME).so.$(MAJOR) _lib$(NAME).so
>
> #ln -s _lib$(NAME).so.$(VERSION) _lib$(NAME).so.$(MAJOR)
>
> #ln -s _lib$(NAME).so.$(MAJOR) _lib$(NAME).so
>
> compile: swig
>
> # $(CC) $(CFLAGS) -c -fPIC libsysproject.cpp libsysproject_wrap.cxx
> -Irecipe-sysroot/usr/include/python3.9
>
> $(CC) -c -fPIC libsysproject.cpp libsysproject_wrap.cxx
> -Irecipe-sysroot/usr/include/python3.9
>
> swig:
>
> # /usr/local/bin/swig -c++ -python -py3 libsysproject.i
>
> /usr/local/bin/swig -c++ -python libsysproject.i
>
> clean:
>
> rm -rf *.o *.so *.so.*
>
>
> *cpp file:*
>
> #include "include/libsysproject.hpp"
>
> Example::Example() {}
>
> Example::~Example() {}
>
> int Example::addNumbers(int a, int b) {
>
> return a + b;
>
> }
>
>
>
> *hpp file:*
>
> #ifndef LIBSYSPROJECT_HPP_
>
> #define LIBSYSPROJECT_HPP_
>
> #include <stdint.h>
>
> #include <sys/types.h>
>
> class Example {
>
> public:
>
> Example();
>
> ~Example();
>
> int addNumbers(int a, int b);
>
> };
>
> #endif // LIBSYSPROJECT_HPP_
>
> *.i file:*
>
> %module libsysproject
>
> %{
>
> #include "include/libsysproject.hpp"
>
> %}
>
> %include "include/libsysproject.hpp"
>
>
> _______________________________________________
> Swig-user mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/swig-user
>

_______________________________________________
Swig-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/swig-user