1# 2# Copyright OpenEmbedded Contributors 3# 4# SPDX-License-Identifier: MIT 5# 6# Not all platforms are supported by Qemu. Using qemu-user therefore 7# involves a certain risk, which is also the reason why this feature 8# is not part of the main cmake class by default. 9# 10# One use case is the execution of cross-compiled unit tests with CTest 11# on the build machine. If CMAKE_EXEWRAPPER_ENABLED is configured, 12# cmake --build --target test 13# works transparently with qemu-user. If the cmake project is developed 14# with this use case in mind this works very nicely also out of an IDE 15# configured to use cmake-native for cross compiling. 16 17inherit qemu cmake 18 19DEPENDS:append:class-target = "${@' qemu-native' if bb.utils.contains('MACHINE_FEATURES', 'qemu-usermode', True, False, d) else ''}" 20 21cmake_do_generate_toolchain_file:append:class-target() { 22 if ${@bb.utils.contains('MACHINE_FEATURES', 'qemu-usermode', 'true', 'false', d)}; then 23 # Write out a qemu wrapper that will be used as exe_wrapper so that cmake 24 # can run target helper binaries through that. This also allows to execute ctest. 25 qemu_binary="${@qemu_wrapper_cmdline(d, '${STAGING_DIR_HOST}', ['${STAGING_DIR_HOST}/${libdir}','${STAGING_DIR_HOST}/${base_libdir}'])}" 26 echo "#!/bin/sh" > "${WORKDIR}/cmake-qemuwrapper" 27 echo "$qemu_binary \"\$@\"" >> "${WORKDIR}/cmake-qemuwrapper" 28 chmod +x "${WORKDIR}/cmake-qemuwrapper" 29 echo "set( CMAKE_CROSSCOMPILING_EMULATOR ${WORKDIR}/cmake-qemuwrapper)" \ 30 >> ${WORKDIR}/toolchain.cmake 31 fi 32} 33