From: Markus Blatt Date: Wed, 24 Apr 2024 15:18:11 +0200 Subject: Prevent pybind11 from stripping debug symbols pybind11_add_module will strip debug symbols if CMAKE_BUILD_TYPE is neither Debug nor RelWithDebInfo) and there is no option to prevent this. To fix this we temporarily reset the CMAKE_BUILD_TYPE to Debug We noticed the problem in the build logs: dh_dwz -a -O--max-parallel=2 dwz -- debian/libopm-common/usr/lib/x86_64-linux-gnu/libopmcommon.so.2024.04 install -m0755 -d debian/python3-opm-common/usr/lib/debug/.dwz/x86_64-linux-gnu dwz -mdebian/python3-opm-common/usr/lib/debug/.dwz/x86_64-linux-gnu/python3-opm-common.debug -M/usr/lib/debug/.dwz/x86_64-linux-gnu/python3-opm-common.debug -- debian/python3-opm-common/usr/lib/python3/dist-packages/opm/opmcommon_python.cpython-311-x86_64-linux-gnu.so debian/python3-opm-common/usr/lib/python3/dist-packages/opm_embedded.cpython-311-x86_64-linux-gnu.so install -m0755 -d debian/libopm-common-bin/usr/lib/debug/.dwz/x86_64-linux-gnu dwz -mdebian/libopm-common-bin/usr/lib/debug/.dwz/x86_64-linux-gnu/libopm-common-bin.debug -M/usr/lib/debug/.dwz/x86_64-linux-gnu/libopm-common-bin.debug -- debian/libopm-common-bin/usr/bin/arraylist debian/libopm-common-bin/usr/bin/co2brinepvt debian/libopm-common-bin/usr/bin/compareECL debian/libopm-common-bin/usr/bin/convertECL debian/libopm-common-bin/usr/bin/hysteresis debian/libopm-common-bin/usr/bin/opmhash debian/libopm-common-bin/usr/bin/opmpack debian/libopm-common-bin/usr/bin/rst_deck debian/libopm-common-bin/usr/bin/summary dwz: debian/python3-opm-common/usr/lib/python3/dist-packages/opm/opmcommon_python.cpython-311-x86_64-linux-gnu.so: .debug_info section not present dwz: debian/python3-opm-common/usr/lib/python3/dist-packages/opm_embedded.cpython-311-x86_64-linux-gnu.so: .debug_info section not present --- CMakeLists.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/CMakeLists.txt b/CMakeLists.txt index d71e8d5..8c82143 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -450,12 +450,18 @@ if (OPM_ENABLE_PYTHON) file(COPY ${PROJECT_SOURCE_DIR}/python/README.md ${PROJECT_SOURCE_DIR}/python/MANIFEST.in DESTINATION ${PROJECT_BINARY_DIR}/python) + # pybind11 will always strip debug symbols if CMAKE_BUILD_TYPE is empty + # We simply reset here to Debug to prevent stripping. + set(OPM_CMAKE_BUILD_TYPE "${CMAKE_BUILD_TYPE}") + set(CMAKE_BUILD_TYPE Debug) pybind11_add_module(opmcommon_python ${PYTHON_CXX_SOURCE_FILES} ${PROJECT_BINARY_DIR}/python/cxx/builtin_pybind11.cpp) target_link_libraries(opmcommon_python PRIVATE opmcommon) + set(CMAKE_BUILD_TYPE "${OLD_CMAKE_BUILD_TYPE}") + if(TARGET pybind11::pybind11) target_link_libraries(opmcommon_python PRIVATE pybind11::pybind11)