2 include(LLVMExternalProjectUtils)
5 function(llvm_create_cross_target project_name target_name toolchain buildtype)
7 if(NOT DEFINED ${project_name}_${target_name}_BUILD)
8 set(${project_name}_${target_name}_BUILD
9 "${CMAKE_BINARY_DIR}/${target_name}")
10 set(${project_name}_${target_name}_BUILD
11 ${${project_name}_${target_name}_BUILD} PARENT_SCOPE)
12 message(STATUS "Setting native build dir to " ${${project_name}_${target_name}_BUILD})
13 endif(NOT DEFINED ${project_name}_${target_name}_BUILD)
15 if (EXISTS ${LLVM_MAIN_SRC_DIR}/cmake/platforms/${toolchain}.cmake)
16 set(CROSS_TOOLCHAIN_FLAGS_INIT
17 -DCMAKE_TOOLCHAIN_FILE=\"${LLVM_MAIN_SRC_DIR}/cmake/platforms/${toolchain}.cmake\")
19 set(CROSS_TOOLCHAIN_FLAGS_INIT
20 -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
21 -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
24 set(CROSS_TOOLCHAIN_FLAGS_${target_name} ${CROSS_TOOLCHAIN_FLAGS_INIT}
25 CACHE STRING "Toolchain configuration for ${target_name}")
27 # project specific version of the flags up above
28 set(CROSS_TOOLCHAIN_FLAGS_${project_name}_${target_name} ""
29 CACHE STRING "Toolchain configuration for ${Pproject_name}_${target_name}")
32 set(build_type_flags "-DCMAKE_BUILD_TYPE=${buildtype}")
34 if (LLVM_USE_LINKER AND NOT CMAKE_CROSSCOMPILING)
35 set(linker_flag "-DLLVM_USE_LINKER=${LLVM_USE_LINKER}")
37 if (LLVM_EXTERNAL_CLANG_SOURCE_DIR)
38 # Propagate LLVM_EXTERNAL_CLANG_SOURCE_DIR so that clang-tblgen can be built
39 set(external_clang_dir "-DLLVM_EXTERNAL_CLANG_SOURCE_DIR=${LLVM_EXTERNAL_CLANG_SOURCE_DIR}")
42 add_custom_command(OUTPUT ${${project_name}_${target_name}_BUILD}
43 COMMAND ${CMAKE_COMMAND} -E make_directory ${${project_name}_${target_name}_BUILD}
44 COMMENT "Creating ${${project_name}_${target_name}_BUILD}...")
46 add_custom_target(CREATE_${project_name}_${target_name}
47 DEPENDS ${${project_name}_${target_name}_BUILD})
49 # Escape semicolons in the targets list so that cmake doesn't expand
51 string(REPLACE ";" "$<SEMICOLON>" targets_to_build_arg
52 "${LLVM_TARGETS_TO_BUILD}")
53 string(REPLACE ";" "$<SEMICOLON>" experimental_targets_to_build_arg
54 "${LLVM_EXPERIMENTAL_TARGETS_TO_BUILD}")
56 string(REPLACE ";" "$<SEMICOLON>" llvm_enable_projects_arg
57 "${LLVM_ENABLE_PROJECTS}")
58 string(REPLACE ";" "$<SEMICOLON>" llvm_external_projects_arg
59 "${LLVM_EXTERNAL_PROJECTS}")
61 set(external_project_source_dirs)
62 foreach(project ${LLVM_EXTERNAL_PROJECTS})
63 canonicalize_tool_name(${project} name)
64 list(APPEND external_project_source_dirs
65 "-DLLVM_EXTERNAL_${name}_SOURCE_DIR=${LLVM_EXTERNAL_${name}_SOURCE_DIR}")
68 add_custom_command(OUTPUT ${${project_name}_${target_name}_BUILD}/CMakeCache.txt
69 COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}"
70 -DCMAKE_MAKE_PROGRAM="${CMAKE_MAKE_PROGRAM}"
71 ${CROSS_TOOLCHAIN_FLAGS_${target_name}} ${CMAKE_SOURCE_DIR}
72 ${CROSS_TOOLCHAIN_FLAGS_${project_name}_${target_name}}
73 -DLLVM_TARGET_IS_CROSSCOMPILE_HOST=TRUE
74 -DLLVM_TARGETS_TO_BUILD="${targets_to_build_arg}"
75 -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="${experimental_targets_to_build_arg}"
76 -DLLVM_DEFAULT_TARGET_TRIPLE="${TARGET_TRIPLE}"
77 -DLLVM_TARGET_ARCH="${LLVM_TARGET_ARCH}"
78 -DLLVM_ENABLE_PROJECTS="${llvm_enable_projects_arg}"
79 -DLLVM_EXTERNAL_PROJECTS="${llvm_external_projects_arg}"
80 ${external_project_source_dirs}
81 -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN="${LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN}"
82 ${build_type_flags} ${linker_flag} ${external_clang_dir}
84 WORKING_DIRECTORY ${${project_name}_${target_name}_BUILD}
85 DEPENDS CREATE_${project_name}_${target_name}
86 COMMENT "Configuring ${target_name} ${project_name}...")
88 add_custom_target(CONFIGURE_${project_name}_${target_name}
89 DEPENDS ${${project_name}_${target_name}_BUILD}/CMakeCache.txt)
93 # Sets up a native build for a tool, used e.g. for cross-compilation and
94 # LLVM_OPTIMIZED_TABLEGEN. Always builds in Release.
95 # - target: The target to build natively
96 # - output_path_var: A variable name which receives the path to the built target
97 # - DEPENDS: Any additional dependencies for the target
98 function(build_native_tool target output_path_var)
99 cmake_parse_arguments(ARG "" "" "DEPENDS" ${ARGN})
101 if(CMAKE_CONFIGURATION_TYPES)
102 set(output_path "${${CMAKE_PROJECT_NAME}_NATIVE_BUILD}/Release/bin/${target}")
104 set(output_path "${${CMAKE_PROJECT_NAME}_NATIVE_BUILD}/bin/${target}")
107 llvm_ExternalProject_BuildCmd(build_cmd ${target} ${${CMAKE_PROJECT_NAME}_NATIVE_BUILD}
108 CONFIGURATION Release)
109 add_custom_command(OUTPUT "${output_path}"
111 DEPENDS CONFIGURE_${CMAKE_PROJECT_NAME}_NATIVE ${ARG_DEPENDS}
112 WORKING_DIRECTORY "${${CMAKE_PROJECT_NAME}_NATIVE_BUILD}"
113 COMMENT "Building native ${target}..."
115 set(${output_path_var} "${output_path}" PARENT_SCOPE)