Based on work done by Matthew Dombroski. We want to generate a toolchain file for cmake compilations. This adds a task that is performed before the configure task.
Additional defines can be made in the toolchain file directly in the recipe file by using a do_generate_toolchain_file_append(). This is especially interesting for recipes that need to define values for additionnal libraries. Signed-off-by: Valentin Longchamp <[email protected]> --- classes/cmake.bbclass | 39 +++++++++++++++++++++++++++++++++++++-- 1 files changed, 37 insertions(+), 2 deletions(-) diff --git a/classes/cmake.bbclass b/classes/cmake.bbclass index b5b7b86..e3ec533 100644 --- a/classes/cmake.bbclass +++ b/classes/cmake.bbclass @@ -11,6 +11,39 @@ OECMAKE_SOURCEPATH ?= "." # "-C ${OECMAKE_BUILDPATH}". So it will run the right makefiles. OECMAKE_BUILDPATH ?= "" +# C/C++ Compiler (without cpu arch/tune arguments) +OECMAKE_C_COMPILER ?= "`echo ${CC} | sed 's/^\([^ ]*\).*/\1/'`" +OECMAKE_CXX_COMPILER ?= "`echo ${CXX} | sed 's/^\([^ ]*\).*/\1/'`" + +# Compiler flags +OECMAKE_C_FLAGS ?= "${HOST_CC_ARCH} ${TOOLCHAIN_OPTIONS} ${BUILD_CPPFLAGS}" +OECMAKE_CXX_FLAGS ?= "${HOST_CC_ARCH} ${TOOLCHAIN_OPTIONS} ${BUILD_CPPFLAGS} -fpermissive" +OECMAKE_C_FLAGS_RELEASE ?= "${SELECTED_OPTIMIZATION} -DNDEBUG" +OECMAKE_CXX_FLAGS_RELEASE ?= "${SELECTED_OPTIMIZATION} -DNDEBUG" + +cmake_do_generate_toolchain_file() { +# CMake system name must be something like "Linux". +# This is important for cross-compiling. + echo "set( CMAKE_SYSTEM_NAME" `echo ${SDK_OS} | sed 's/^./\u&/'` ")" > ${WORKDIR}/toolchain.cmake + echo "set( CMAKE_C_COMPILER ${OECMAKE_C_COMPILER} )" >> ${WORKDIR}/toolchain.cmake + echo "set( CMAKE_CXX_COMPILER ${OECMAKE_CXX_COMPILER} )" >> ${WORKDIR}/toolchain.cmake + echo "set( CMAKE_C_FLAGS \"${OECMAKE_C_FLAGS}\" CACHE STRING \"OpenEmbedded CFLAGS\" )" >> ${WORKDIR}/toolchain.cmake + echo "set( CMAKE_CXX_FLAGS \"${OECMAKE_CXX_FLAGS}\" CACHE STRING \"OpenEmbedded CXXFLAGS\" )" >> ${WORKDIR}/toolchain.cmake + echo "set( CMAKE_C_FLAGS_RELEASE \"${OECMAKE_C_FLAGS_RELEASE}\" CACHE STRING \"CFLAGS for release\" )" >> ${WORKDIR}/toolchain.cmake + echo "set( CMAKE_CXX_FLAGS_RELEASE \"${OECMAKE_CXX_FLAGS_RELEASE}\" CACHE STRING \"CXXFLAGS for release\" )" >> ${WORKDIR}/toolchain.cmake + +# only search in the paths provided (from openembedded) so cmake doesnt pick +# up libraries and tools from the native build machine + echo "set( CMAKE_FIND_ROOT_PATH ${STAGING_DIR_HOST} ${STAGING_DIR_NATIVE} ${CROSS_DIR} )" >> ${WORKDIR}/toolchain.cmake + echo "set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )" >> ${WORKDIR}/toolchain.cmake + echo "set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )" >> ${WORKDIR}/toolchain.cmake + echo "set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )" >> ${WORKDIR}/toolchain.cmake +# Use native cmake modules + echo "set( CMAKE_MODULE_PATH ${STAGING_DIR_NATIVE}/usr/share/cmake-2.6/Modules/ )" >> ${WORKDIR}/toolchain.cmake +} + +addtask generate_toolchain_file after do_patch before do_configure + cmake_do_configure() { if [ ${OECMAKE_BUILDPATH} ] then @@ -20,9 +53,11 @@ cmake_do_configure() { cmake ${OECMAKE_SOURCEPATH} \ -DCMAKE_INSTALL_PREFIX:PATH=${prefix} \ - -DCMAKE_FIND_ROOT_PATH=${STAGING_DIR_HOST} \ + -DCMAKE_TOOLCHAIN_FILE=${WORKDIR}/toolchain.cmake \ + -DCMAKE_VERBOSE_MAKEFILE=1 \ ${EXTRA_OECMAKE} \ -Wno-dev + } -EXPORT_FUNCTIONS do_configure +EXPORT_FUNCTIONS do_configure do_generate_toolchain_file -- 1.6.0.4 _______________________________________________ Openembedded-devel mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel
