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Diffstat (limited to 'meta/classes-recipe/cmake-qemu.bbclass')
-rw-r--r-- | meta/classes-recipe/cmake-qemu.bbclass | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/meta/classes-recipe/cmake-qemu.bbclass b/meta/classes-recipe/cmake-qemu.bbclass new file mode 100644 index 0000000000..383fc74bf2 --- /dev/null +++ b/meta/classes-recipe/cmake-qemu.bbclass @@ -0,0 +1,32 @@ +# +# Copyright OpenEmbedded Contributors +# +# SPDX-License-Identifier: MIT +# +# Not all platforms are supported by Qemu. Using qemu-user therefore +# involves a certain risk, which is also the reason why this feature +# is not part of the main cmake class by default. +# +# One use case is the execution of cross-compiled unit tests with CTest +# on the build machine. If CMAKE_EXEWRAPPER_ENABLED is configured, +# cmake --build --target test +# works transparently with qemu-user. If the cmake project is developed +# with this use case in mind this works very nicely also out of an IDE +# configured to use cmake-native for cross compiling. + +inherit qemu cmake + +DEPENDS:append:class-target = "${@' qemu-native' if bb.utils.contains('MACHINE_FEATURES', 'qemu-usermode', True, False, d) else ''}" + +cmake_do_generate_toolchain_file:append:class-target() { + if ${@bb.utils.contains('MACHINE_FEATURES', 'qemu-usermode', 'true', 'false', d)}; then + # Write out a qemu wrapper that will be used as exe_wrapper so that cmake + # can run target helper binaries through that. This also allows to execute ctest. + qemu_binary="${@qemu_wrapper_cmdline(d, '${STAGING_DIR_HOST}', ['${STAGING_DIR_HOST}/${libdir}','${STAGING_DIR_HOST}/${base_libdir}'])}" + echo "#!/bin/sh" > "${WORKDIR}/cmake-qemuwrapper" + echo "$qemu_binary \"\$@\"" >> "${WORKDIR}/cmake-qemuwrapper" + chmod +x "${WORKDIR}/cmake-qemuwrapper" + echo "set( CMAKE_CROSSCOMPILING_EMULATOR ${WORKDIR}/cmake-qemuwrapper)" \ + >> ${WORKDIR}/toolchain.cmake + fi +} |