Your message dated Sun, 24 Dec 2023 13:23:47 -0400 with message-id <7ktac4vmwnrgscup4ypvzjhog42vz7piertjyw7mhqcr4oakwu@sg4e4dsojhhu> and subject line Re: Bug#941004: cython3: gcc/ld return "undefined reference" compiling cpp generated with cython3 has caused the Debian Bug report #941004, regarding cython3: gcc/ld return "undefined reference" compiling cpp generated with cython3 to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 941004: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=941004 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: cython3 Version: 0.29.2-2 Severity: important Dear maintainer, I recently discovered that compiling a python3 source with cython + gcc fails by returning errors of the "undefined reference" type, relative to the linker that does not seem to be able to find references within the python library. For example: # -- created simple program -- $ cat testfile.py #!/usr/bin/env python3 print("TEST") # -- test from interpreter (version 3.7.4+) -- $ python3.7 testfile.py TEST # -- source creation with cython (version 0.29.2) -- $ cython3 -3 --embed --cplus testfile.py -o testfile.cpp # -- check cpp file creation -- $ ls -ll a.* -rw-r--r-- 1 root root 104184 set 23 11:51 testfile.cpp -rwxr-xr-x 1 root shared 38 set 23 11:50 testfile.py # -- compilation -- $ g++ -fno-pie -no-pie -O3 -I /usr/include/python3.7 -L /usr/lib/python3.7/config-3.7m-x86_64-linux-gnu -l python3.7 testfile.cpp -o a # -- errors returned -- /usr/bin/ld: /tmp/user/0/ccJik3VR.o: in function `__Pyx_copy_spec_to_module(_object*, _object*, char const*, char const*, int)': testfile.cpp:(.text.unlikely+0x7a): undefined reference to `PyObject_GetAttrString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x88): undefined reference to `_Py_NoneStruct' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xa0): undefined reference to `PyDict_SetItemString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xbc): undefined reference to `PyExc_AttributeError' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xc5): undefined reference to `PyErr_ExceptionMatches' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xce): undefined reference to `PyErr_Clear' /usr/bin/ld: /tmp/user/0/ccJik3VR.o: in function `__pyx_pymod_create(_object*, PyModuleDef*)': testfile.cpp:(.text.unlikely+0xed): undefined reference to `PyThreadState_Get' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xf6): undefined reference to `PyInterpreterState_GetID' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x11d): undefined reference to `PyExc_ImportError' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x127): undefined reference to `PyErr_SetString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x151): undefined reference to `PyObject_GetAttrString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x161): undefined reference to `PyModule_NewObject' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x182): undefined reference to `PyModule_GetDict' /usr/bin/ld: /tmp/user/0/ccJik3VR.o: in function `__pyx_pymod_exec_a(_object*)': testfile.cpp:(.text.unlikely+0x25a): undefined reference to `PyExc_RuntimeError' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x264): undefined reference to `PyErr_SetString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x28d): undefined reference to `PyOS_snprintf' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x292): undefined reference to `Py_GetVersion' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x2ab): undefined reference to `PyOS_snprintf' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x2e5): undefined reference to `PyOS_snprintf' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x2f6): undefined reference to `PyErr_WarnEx' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x325): undefined reference to `PyTuple_New' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x361): undefined reference to `PyBytes_FromStringAndSize' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x39d): undefined reference to `PyUnicode_FromStringAndSize' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x3d9): undefined reference to `PyModule_GetDict' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x416): undefined reference to `PyImport_AddModule' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x450): undefined reference to `PyImport_AddModule' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x498): undefined reference to `PyObject_SetAttrString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x4e4): undefined reference to `PyUnicode_InternFromString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x502): undefined reference to `PyUnicode_Decode' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x50d): undefined reference to `PyUnicode_FromStringAndSize' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x520): undefined reference to `PyBytes_FromStringAndSize' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x538): undefined reference to `PyObject_Hash' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x571): undefined reference to `PyObject_SetAttr' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x5cd): undefined reference to `_PyThreadState_UncheckedGet' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x616): undefined reference to `_PyObject_GetDictPtr' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x64e): undefined reference to `_PyDict_GetItem_KnownHash' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x692): undefined reference to `PyObject_Not' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x69d): undefined reference to `_Py_FalseStruct' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x6a4): undefined reference to `_Py_TrueStruct' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x6be): undefined reference to `PyErr_Clear' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x6d8): undefined reference to `_Py_FalseStruct' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x6e0): undefined reference to `PyObject_SetAttr' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x6e9): undefined reference to `_Py_FalseStruct' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x6f7): undefined reference to `_Py_TrueStruct' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x701): undefined reference to `PyObject_Not' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x7c1): undefined reference to `PyUnicode_FromString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x7eb): undefined reference to `PyUnicode_FromFormat' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x7fa): undefined reference to `PyUnicode_FromString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x831): undefined reference to `PyCode_New' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x887): undefined reference to `PyMem_Malloc' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x90f): undefined reference to `PyMem_Realloc' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x977): undefined reference to `PyFrame_New' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x98a): undefined reference to `PyTraceBack_Here' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x9c5): undefined reference to `PyErr_Occurred' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x9d1): undefined reference to `PyExc_ImportError' /usr/bin/ld: testfile.cpp:(.text.unlikely+0x9db): undefined reference to `PyErr_SetString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xa40): undefined reference to `PyImport_GetModuleDict' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xa79): undefined reference to `PyDict_GetItemString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xa92): undefined reference to `PyDict_SetItemString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xadf): undefined reference to `PyExc_NameError' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xaee): undefined reference to `PyErr_Format' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xb31): undefined reference to `PyTuple_Pack' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xb89): undefined reference to `PyObject_Call' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xb9f): undefined reference to `PyThreadState_Get' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xbab): undefined reference to `_Py_CheckRecursionLimit' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xbc2): undefined reference to `PyThreadState_Get' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xbd1): undefined reference to `_Py_CheckRecursionLimit' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xbed): undefined reference to `_Py_CheckRecursiveCall' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xbfc): undefined reference to `PyThreadState_Get' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xc0a): undefined reference to `PyErr_Occurred' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xc16): undefined reference to `PyExc_SystemError' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xc20): undefined reference to `PyErr_SetString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xc59): undefined reference to `PyDict_New' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xc9b): undefined reference to `PyDict_SetItem' /usr/bin/ld: /tmp/user/0/ccJik3VR.o: in function `__Pyx_main(int, wchar_t**) [clone .part.0]': testfile.cpp:(.text.unlikely+0xd37): undefined reference to `PyModule_Type' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xd3e): undefined reference to `PyModule_Type' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xd43): undefined reference to `PyType_IsSubtype' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xd51): undefined reference to `PyUnicode_FromString' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xd61): undefined reference to `PyModule_NewObject' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xd88): undefined reference to `PyModule_ExecDef' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xd91): undefined reference to `PyErr_Occurred' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xd9b): undefined reference to `PyErr_Print' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xdbc): undefined reference to `Py_Finalize' /usr/bin/ld: /tmp/user/0/ccJik3VR.o: in function `main.cold': testfile.cpp:(.text.unlikely+0xdd0): undefined reference to `Py_SetProgramName' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xdd5): undefined reference to `Py_Initialize' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xde1): undefined reference to `PySys_SetArgv' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xdf4): undefined reference to `Py_Initialize' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xe29): undefined reference to `Py_SetProgramName' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xe2e): undefined reference to `Py_Initialize' /usr/bin/ld: testfile.cpp:(.text.unlikely+0xe3a): undefined reference to `PySys_SetArgv' /usr/bin/ld: /tmp/user/0/ccJik3VR.o: in function `__Pyx_PyObject_GetAttrStr(_object*, _object*)': testfile.cpp:(.text.unlikely+0x61): undefined reference to `PyObject_GetAttr' /usr/bin/ld: /tmp/user/0/ccJik3VR.o: in function `PyInit_a': testfile.cpp:(.text.unlikely+0xd16): undefined reference to `PyModuleDef_Init' collect2: error: ld returned 1 exit status -- but the library exists and contains references indicated as missing, for example: /tmp$ objdump -T /usr/lib/x86_64-linux-gnu/libpython3.7m.so|grep "PyUnicode_FromFormat" 00000000001f7990 g DF .text 0000000000000091 Base PyUnicode_FromFormat 00000000001f6c60 g DF .text 0000000000000d2c Base PyUnicode_FromFormatV -- why does this procedure no longer work? Thanks, Antonio -- Other details: $ ls -ll /usr/include/python3.7* -d drwxr-xr-x 2 root root 4096 lug 15 12:38 /usr/include/python3.7dm drwxr-xr-x 3 root root 16384 set 8 08:49 /usr/include/python3.7m lrwxrwxrwx 1 root root 10 ott 21 2018 /usr/include/python3.7 -> python3.7m $ ls -ll /usr/lib/python3.7/config-3.7m-x86_64-linux-gnu/libpython3.7* -d -rw-r--r-- 1 root root 37815704 set 4 20:42 /usr/lib/python3.7/config-3.7m-x86_64-linux-gnu/libpython3.7m.a -rw-r--r-- 1 root root 37207272 set 4 20:42 /usr/lib/python3.7/config-3.7m-x86_64-linux-gnu/libpython3.7m-pic.a lrwxrwxrwx 1 root root 41 set 4 10:03 /usr/lib/python3.7/config-3.7m-x86_64-linux-gnu/libpython3.7m.so -> ../../x86_64-linux-gnu/libpython3.7m.so.1 lrwxrwxrwx 1 root root 41 set 4 10:03 /usr/lib/python3.7/config-3.7m-x86_64-linux-gnu/libpython3.7.so -> ../../x86_64-linux-gnu/libpython3.7m.so.1 $ ls -ll /usr/lib/x86_64-linux-gnu/libpython* lrwxrwxrwx 1 root root 51 set 4 10:19 libpython2.7.a -> ../python2.7/config-x86_64-linux-gnu/libpython2.7.a lrwxrwxrwx 1 root root 17 set 4 10:19 libpython2.7.so -> libpython2.7.so.1 lrwxrwxrwx 1 root root 19 set 4 10:19 libpython2.7.so.1 -> libpython2.7.so.1.0 -rw-r--r-- 1 root root 3439088 set 4 20:42 libpython2.7.so.1.0 lrwxrwxrwx 1 root root 18 set 4 10:03 libpython3.7m.so -> libpython3.7m.so.1 lrwxrwxrwx 1 root root 20 set 4 10:03 libpython3.7m.so.1 -> libpython3.7m.so.1.0 -rw-r--r-- 1 root root 5018368 set 4 20:42 libpython3.7m.so.1.0 -- System Information: Debian Release: bullseye/sid APT prefers unstable APT policy: (700, 'unstable'), (500, 'stable-updates'), (500, 'stable'), (100, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.3.1-custom (SMP w/8 CPU cores; PREEMPT) Locale: LANG=it_IT, LC_CTYPE=it_IT (charmap=ISO-8859-1) (ignored: LC_ALL set to it_IT), LANGUAGE=it (charmap=ISO-8859-1) (ignored: LC_ALL set to it_IT) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages cython3 depends on: ii libc6 2.29-2 ii python3 3.7.3-1 Versions of packages cython3 recommends: ii gcc 4:9.2.1-3.1 ii python3-dev 3.7.3-1 Versions of packages cython3 suggests: pn cython-doc <none> -- debconf-show failed
--- End Message ---
--- Begin Message ---Hi Antonio (2019.09.23_06:23:09_-0400) > Dear maintainer, > I recently discovered that compiling a python3 source with cython + > gcc fails by returning errors of the "undefined reference" type, > relative to the linker that does not seem to be able to find > references within the python library. Looks like ld --as-needed. Specify the source file (testfile.cpp) before the libraries it needs to link against. Stefano -- Stefano Rivera http://tumbleweed.org.za/ +1 415 683 3272
--- End Message ---
