On Fri, May 29, 2020 at 06:47:35PM +0200, Petr Viktorin wrote: > > > On 2020-05-18 03:53, Honggang LI wrote: > > On Fri, May 15, 2020 at 02:12:00PM -0400, Charalampos Stratakis wrote: > > > rdma-core dledford honli jwilson > > > > rdma-core pyverbs must be linked with libpython38. For example, > > > > build]$ nm ./python/pyverbs/mem_alloc.cpython-38-x86_64-linux-gnu.so | grep -w U | grep PyInterpreterState_GetID > > U PyInterpreterState_GetID > > > > Python-3.8.3]$ nm -a ./build/debug/libpython3.8d.so | grep PyInterpreterState_GetID > > 00000000000c6a82 T PyInterpreterState_GetID > > This is exactly the case where the module should *not* be linked to > /usr/lib64/libpython3.8.so. > mem_alloc.cpython-38-x86_64-linux-gnu.so is a Python module, so it is loaded > from Python when imported. The import will link link it to the particular > Python interpreter it's imported into, which could be using a different > libpython3.8.so (such as the debug version). OK, I see the problem now. But I don't know how to handle this. Let's take ../python/pyverbs/srq.cpython-39-x86_64-linux-gnu.so as example. 1) Link with debug version. [honli@localhost pyverbs (master)]$ gcc -fPIC -Wall -Wextra -Wno-sign-compare -Wno-unused-parameter -Wmissing-prototypes -Wmissing-declarations -Wwrite-strings -Wformat=2 -Wcast-function-type -Wformat-nonliteral -Wdate-time -Wnested-externs -Wshadow -Wstrict-prototypes -Wold-style-definition -Wredundant-decls -O2 -g -DNDEBUG -Wl,--as-needed -Wl,--no-undefined -shared -Wl,-soname,srq.cpython-39-x86_64-linux-gnu.so -o ../python/pyverbs/srq.cpython-39-x86_64-linux-gnu.so CMakeFiles/srq.cpython-39-x86_64-linux-gnu.dir/srq.c.o -Wl,-rpath,/home/honli/upstream/rdma-core/build/lib: ../lib/librdmacm.so.1.2.30.0 ../lib/libibverbs.so.1.9.30.0 -lpython3.9d [honli@localhost pyverbs (master)]$ ldd ../python/pyverbs/srq.cpython-39-x86_64-linux-gnu.so linux-vdso.so.1 (0x00007fff2fbe4000) libibverbs.so.1 => /home/honli/upstream/rdma-core/build/lib/libibverbs.so.1 (0x00007feed22c3000) libpython3.9d.so.1.0 => /lib64/libpython3.9d.so.1.0 (0x00007feed1e6e000) libc.so.6 => /lib64/libc.so.6 (0x00007feed1ca3000) libnl-route-3.so.200 => /lib64/libnl-route-3.so.200 (0x00007feed1c1b000) libnl-3.so.200 => /lib64/libnl-3.so.200 (0x00007feed1bf7000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007feed1bd5000) libdl.so.2 => /lib64/libdl.so.2 (0x00007feed1bcc000) libutil.so.1 => /lib64/libutil.so.1 (0x00007feed1bc7000) libm.so.6 => /lib64/libm.so.6 (0x00007feed1a81000) /lib64/ld-linux-x86-64.so.2 (0x00007feed22f7000) [honli@localhost pyverbs (master)]$ ldd ../python/pyverbs/srq.cpython-39-x86_64-linux-gnu.so | grep libpython3.9d.so.1.0 libpython3.9d.so.1.0 => /lib64/libpython3.9d.so.1.0 (0x00007f32570ac000) [honli@localhost pyverbs (master)]$ rpm -qf /lib64/libpython3.9d.so.1.0 python3-debug-3.9.0~b1-3.fc33.x86_64 2) link with normal version [honli@localhost pyverbs (master)]$ gcc -fPIC -Wall -Wextra -Wno-sign-compare -Wno-unused-parameter -Wmissing-prototypes -Wmissing-declarations -Wwrite-strings -Wformat=2 -Wcast-function-type -Wformat-nonliteral -Wdate-time -Wnested-externs -Wshadow -Wstrict-prototypes -Wold-style-definition -Wredundant-decls -O2 -g -DNDEBUG -Wl,--as-needed -Wl,--no-undefined -shared -Wl,-soname,srq.cpython-39-x86_64-linux-gnu.so -o ../python/pyverbs/srq.cpython-39-x86_64-linux-gnu.so CMakeFiles/srq.cpython-39-x86_64-linux-gnu.dir/srq.c.o -Wl,-rpath,/home/honli/upstream/rdma-core/build/lib: ../lib/librdmacm.so.1.2.30.0 ../lib/libibverbs.so.1.9.30.0 -lpython3.9 [honli@localhost pyverbs (master)]$ ldd ../python/pyverbs/srq.cpython-39-x86_64-linux-gnu.so | grep libpython3.9 libpython3.9.so.1.0 => /lib64/libpython3.9.so.1.0 (0x00007f7f8a7c7000) [honli@localhost pyverbs (master)]$ rpm -qf /lib64/libpython3.9.so.1.0 python3-libs-3.9.0~b1-3.fc33.x86_64 As you see, "-lpython3.9" or "-lpython3.9d" library must be provided to the linker. Otherwise, a lot of "undefined reference to xxx" error messages show up. /home/honli/upstream/rdma-core/build/pyverbs/srq.c:10425: undefined reference to `PyErr_GivenExceptionMatches' /home/honli/upstream/rdma-core/build/pyverbs/srq.c:8987: undefined reference to `_PyObject_GenericGetAttrWithDict' /home/honli/upstream/rdma-core/build/pyverbs/srq.c:7786: undefined reference to `PyModuleDef_Init' [honli@localhost pyverbs (master)]$ grep undefined error.txt |wc -l 876 Any hits how to handle this? Thanks _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
