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Refactoring CMake CrossCompile module.

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* 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232067 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Bieneman 2015-03-12 17:33:34 +00:00
parent f7a833adfd
commit a08ee010be
3 changed files with 50 additions and 28 deletions
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72
cmake/modules/CrossCompile.cmake
View File

@ -1,33 +1,55 @@
if(NOT DEFINED LLVM_NATIVE_BUILD)
set(LLVM_NATIVE_BUILD "${CMAKE_BINARY_DIR}/native")
message(STATUS "Setting native build dir to ${LLVM_NATIVE_BUILD}")
endif(NOT DEFINED LLVM_NATIVE_BUILD)
function(llvm_create_cross_target_internal target_name toochain buildtype)
add_custom_command(OUTPUT ${LLVM_NATIVE_BUILD}
COMMAND ${CMAKE_COMMAND} -E make_directory ${LLVM_NATIVE_BUILD}
COMMENT "Creating ${LLVM_NATIVE_BUILD}...")
if(NOT DEFINED LLVM_${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)
add_custom_command(OUTPUT ${LLVM_NATIVE_BUILD}/CMakeCache.txt
COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" ${CMAKE_SOURCE_DIR}
WORKING_DIRECTORY ${LLVM_NATIVE_BUILD}
DEPENDS ${LLVM_NATIVE_BUILD}
COMMENT "Configuring native LLVM...")
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_target(ConfigureNativeLLVM DEPENDS ${LLVM_NATIVE_BUILD}/CMakeCache.txt)
add_custom_command(OUTPUT ${LLVM_${target_name}_BUILD}
COMMAND ${CMAKE_COMMAND} -E make_directory ${LLVM_${target_name}_BUILD}
COMMENT "Creating ${LLVM_${target_name}_BUILD}...")
set_directory_properties(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES ${LLVM_NATIVE_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...")
if(NOT IS_DIRECTORY ${LLVM_NATIVE_BUILD})
if(${CMAKE_HOST_SYSTEM_NAME} MATCHES "Darwin")
set(HOST_SYSROOT_FLAGS -DCMAKE_OSX_SYSROOT=macosx)
endif(${CMAKE_HOST_SYSTEM_NAME} MATCHES "Darwin")
add_custom_target(CONFIGURE_LLVM_${target_name}
DEPENDS ${LLVM_${target_name}_BUILD}/CMakeCache.txt)
message(STATUS "Configuring native build...")
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_NATIVE_BUILD} )
${LLVM_${target_name}_BUILD} )
message(STATUS "Configuring native targets...")
execute_process(COMMAND ${CMAKE_COMMAND} -DCMAKE_BUILD_TYPE=Release
-G "${CMAKE_GENERATOR}" -DLLVM_TARGETS_TO_BUILD=${LLVM_TARGETS_TO_BUILD} ${HOST_SYSROOT_FLAGS} ${CMAKE_SOURCE_DIR}
WORKING_DIRECTORY ${LLVM_NATIVE_BUILD} )
endif(NOT IS_DIRECTORY ${LLVM_NATIVE_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)

2
cmake/modules/TableGen.cmake
View File

@ -102,7 +102,7 @@ macro(add_tablegen target project)
WORKING_DIRECTORY ${LLVM_NATIVE_BUILD}
COMMENT "Building native TableGen...")
add_custom_target(${project}NativeTableGen DEPENDS ${${project}_TABLEGEN_EXE})
add_dependencies(${project}NativeTableGen ConfigureNativeLLVM)
add_dependencies(${project}NativeTableGen CONFIGURE_LLVM_NATIVE)
add_dependencies(${target} ${project}NativeTableGen)
endif()

2
tools/llvm-config/CMakeLists.txt
View File

@ -44,7 +44,7 @@ if(CMAKE_CROSSCOMPILING)
WORKING_DIRECTORY ${LLVM_NATIVE_BUILD}
COMMENT "Building native llvm-config...")
add_custom_target(${project}NativeLLVMConfig DEPENDS ${${project}_LLVM_CONFIG_EXE})
add_dependencies(${project}NativeLLVMConfig ConfigureNativeLLVM)
add_dependencies(${project}NativeLLVMConfig CONFIGURE_LLVM_NATIVE)
add_dependencies(llvm-config ${project}NativeLLVMConfig)
endif(CMAKE_CROSSCOMPILING)