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llvm-mirror/cmake/modules/CrossCompile.cmake
Chris Bieneman ad94dbf12e Refactoring CMake CrossCompile module.
* put most of the cross-compiling support into a function llvm_create_cross_target_internal.
* when CrossCompile is included it still generates a NATIVE target.
* llvm_create_cross_target function takes a target_name which should match a toolchain.
* llvm_create_cross_target can now be used to target more than one cross-compilation target.

llvm-svn: 232067
2015-03-12 17:33:34 +00:00

56 lines
2.3 KiB
CMake

function(llvm_create_cross_target_internal target_name toochain buildtype)
if(NOT DEFINED LLVM_${target_name}_BUILD)
set(LLVM_${target_name}_BUILD "${CMAKE_BINARY_DIR}/${target_name}")
set(LLVM_${target_name}_BUILD ${LLVM_${target_name}_BUILD} PARENT_SCOPE)
message(STATUS "Setting native build dir to " ${LLVM_${target_name}_BUILD})
endif(NOT DEFINED LLVM_${target_name}_BUILD)
if (EXISTS ${LLVM_MAIN_SRC_DIR}/cmake/platforms/${toolchain}.cmake)
set(CROSS_TOOLCHAIN_FLAGS_${target_name}
-DCMAKE_TOOLCHAIN_FILE=\"${LLVM_MAIN_SRC_DIR}/cmake/platforms/${toolchain}.cmake\"
CACHE STRING "Toolchain file for ${target_name}")
endif()
add_custom_command(OUTPUT ${LLVM_${target_name}_BUILD}
COMMAND ${CMAKE_COMMAND} -E make_directory ${LLVM_${target_name}_BUILD}
COMMENT "Creating ${LLVM_${target_name}_BUILD}...")
add_custom_command(OUTPUT ${LLVM_${target_name}_BUILD}/CMakeCache.txt
COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}"
${CROSS_TOOLCHAIN_FLAGS_${target_name}} ${CMAKE_SOURCE_DIR}
WORKING_DIRECTORY ${LLVM_${target_name}_BUILD}
DEPENDS ${LLVM_${target_name}_BUILD}
COMMENT "Configuring ${target_name} LLVM...")
add_custom_target(CONFIGURE_LLVM_${target_name}
DEPENDS ${LLVM_${target_name}_BUILD}/CMakeCache.txt)
set_directory_properties(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES
${LLVM_${target_name}_BUILD})
if(NOT IS_DIRECTORY ${LLVM_${target_name}_BUILD})
message(STATUS "Configuring ${target_name} build...")
execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory
${LLVM_${target_name}_BUILD} )
message(STATUS "Configuring ${target_name} targets...")
if (buildtype)
set(build_type_flags "-DCMAKE_BUILD_TYPE=${buildtype}")
endif()
execute_process(COMMAND ${CMAKE_COMMAND} ${build_type_flags}
-G "${CMAKE_GENERATOR}" -DLLVM_TARGETS_TO_BUILD=${LLVM_TARGETS_TO_BUILD}
${CROSS_TOOLCHAIN_FLAGS_${target_name}} ${CMAKE_SOURCE_DIR}
WORKING_DIRECTORY ${LLVM_${target_name}_BUILD} )
endif(NOT IS_DIRECTORY ${LLVM_${target_name}_BUILD})
endfunction()
function(llvm_create_cross_target target_name sysroot)
llvm_create_cross_target_internal(${target_name} ${sysroot} ${CMAKE_BUILD_TYPE})
endfunction()
llvm_create_cross_target_internal(NATIVE "" Release)