1include(AddLLVM) 2include(LLVMExternalProjectUtils) 3 4 5function(llvm_create_cross_target project_name target_name toolchain buildtype) 6 7 if(NOT DEFINED ${project_name}_${target_name}_BUILD) 8 set(${project_name}_${target_name}_BUILD 9 "${CMAKE_CURRENT_BINARY_DIR}/${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) 14 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\") 18 elseif (NOT CMAKE_CROSSCOMPILING) 19 set(CROSS_TOOLCHAIN_FLAGS_INIT 20 -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} 21 -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} 22 ) 23 endif() 24 set(CROSS_TOOLCHAIN_FLAGS_${target_name} ${CROSS_TOOLCHAIN_FLAGS_INIT} 25 CACHE STRING "Toolchain configuration for ${target_name}") 26 27 # project specific version of the flags up above 28 set(CROSS_TOOLCHAIN_FLAGS_${project_name}_${target_name} "" 29 CACHE STRING "Toolchain configuration for ${project_name}_${target_name}") 30 31 if (buildtype) 32 set(build_type_flags "-DCMAKE_BUILD_TYPE=${buildtype}") 33 endif() 34 if (LLVM_USE_LINKER AND NOT CMAKE_CROSSCOMPILING) 35 set(linker_flag "-DLLVM_USE_LINKER=${LLVM_USE_LINKER}") 36 endif() 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}") 40 endif() 41 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}_${target_name}_BUILD}...") 45 46 add_custom_target(CREATE_${project_name}_${target_name} 47 DEPENDS ${${project_name}_${target_name}_BUILD}) 48 49 # Escape semicolons in the targets list so that cmake doesn't expand 50 # them to spaces. 51 string(REPLACE ";" "$<SEMICOLON>" targets_to_build_arg 52 "${LLVM_TARGETS_TO_BUILD}") 53 string(REPLACE ";" "$<SEMICOLON>" experimental_targets_to_build_arg 54 "${LLVM_EXPERIMENTAL_TARGETS_TO_BUILD}") 55 56 string(REPLACE ";" "$<SEMICOLON>" llvm_enable_projects_arg 57 "${LLVM_ENABLE_PROJECTS}") 58 string(REPLACE ";" "$<SEMICOLON>" llvm_external_projects_arg 59 "${LLVM_EXTERNAL_PROJECTS}") 60 string(REPLACE ";" "$<SEMICOLON>" llvm_enable_runtimes_arg 61 "${LLVM_ENABLE_RUNTIMES}") 62 63 set(external_project_source_dirs) 64 foreach(project ${LLVM_EXTERNAL_PROJECTS}) 65 canonicalize_tool_name(${project} name) 66 list(APPEND external_project_source_dirs 67 "-DLLVM_EXTERNAL_${name}_SOURCE_DIR=${LLVM_EXTERNAL_${name}_SOURCE_DIR}") 68 endforeach() 69 70 if("libc" IN_LIST LLVM_ENABLE_PROJECTS AND NOT LIBC_HDRGEN_EXE) 71 set(libc_flags -DLLVM_LIBC_FULL_BUILD=ON -DLIBC_HDRGEN_ONLY=ON) 72 endif() 73 74 add_custom_command(OUTPUT ${${project_name}_${target_name}_BUILD}/CMakeCache.txt 75 COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" 76 -DCMAKE_MAKE_PROGRAM="${CMAKE_MAKE_PROGRAM}" 77 -DCMAKE_C_COMPILER_LAUNCHER="${CMAKE_C_COMPILER_LAUNCHER}" 78 -DCMAKE_CXX_COMPILER_LAUNCHER="${CMAKE_CXX_COMPILER_LAUNCHER}" 79 ${CROSS_TOOLCHAIN_FLAGS_${target_name}} ${CMAKE_CURRENT_SOURCE_DIR} 80 ${CROSS_TOOLCHAIN_FLAGS_${project_name}_${target_name}} 81 -DLLVM_TARGET_IS_CROSSCOMPILE_HOST=TRUE 82 -DLLVM_TARGETS_TO_BUILD="${targets_to_build_arg}" 83 -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="${experimental_targets_to_build_arg}" 84 -DLLVM_DEFAULT_TARGET_TRIPLE="${LLVM_TARGET_TRIPLE}" 85 -DLLVM_TARGET_ARCH="${LLVM_TARGET_ARCH}" 86 -DLLVM_ENABLE_PROJECTS="${llvm_enable_projects_arg}" 87 -DLLVM_EXTERNAL_PROJECTS="${llvm_external_projects_arg}" 88 -DLLVM_ENABLE_RUNTIMES="${llvm_enable_runtimes_arg}" 89 ${external_project_source_dirs} 90 -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN="${LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN}" 91 -DLLVM_INCLUDE_BENCHMARKS=OFF 92 -DLLVM_INCLUDE_TESTS=OFF 93 ${build_type_flags} ${linker_flag} ${external_clang_dir} ${libc_flags} 94 ${ARGN} 95 WORKING_DIRECTORY ${${project_name}_${target_name}_BUILD} 96 DEPENDS CREATE_${project_name}_${target_name} 97 COMMENT "Configuring ${target_name} ${project_name}...") 98 99 add_custom_target(CONFIGURE_${project_name}_${target_name} 100 DEPENDS ${${project_name}_${target_name}_BUILD}/CMakeCache.txt) 101 102endfunction() 103 104function(get_native_tool_path target output_path_var) 105 if(CMAKE_CONFIGURATION_TYPES) 106 set(output_path "${${PROJECT_NAME}_NATIVE_BUILD}/Release/bin/${target}") 107 else() 108 set(output_path "${${PROJECT_NAME}_NATIVE_BUILD}/bin/${target}") 109 endif() 110 set(${output_path_var} ${output_path}${LLVM_HOST_EXECUTABLE_SUFFIX} PARENT_SCOPE) 111endfunction() 112 113# Sets up a native build for a tool, used e.g. for cross-compilation and 114# LLVM_OPTIMIZED_TABLEGEN. Always builds in Release. 115# - target: The target to build natively 116# - output_path_var: A variable name which receives the path to the built target 117# - DEPENDS: Any additional dependencies for the target 118function(build_native_tool target output_path_var) 119 cmake_parse_arguments(ARG "" "" "DEPENDS" ${ARGN}) 120 121 get_native_tool_path(${target} output_path) 122 123 # Make chain of preceding actions 124 if(CMAKE_GENERATOR MATCHES "Visual Studio") 125 get_property(host_targets GLOBAL PROPERTY ${PROJECT_NAME}_HOST_TARGETS) 126 set_property(GLOBAL APPEND PROPERTY ${PROJECT_NAME}_HOST_TARGETS ${output_path}) 127 endif() 128 129 llvm_ExternalProject_BuildCmd(build_cmd ${target} ${${PROJECT_NAME}_NATIVE_BUILD} 130 CONFIGURATION Release) 131 add_custom_command(OUTPUT "${output_path}" 132 COMMAND ${build_cmd} 133 DEPENDS CONFIGURE_${PROJECT_NAME}_NATIVE ${ARG_DEPENDS} ${host_targets} 134 WORKING_DIRECTORY "${${PROJECT_NAME}_NATIVE_BUILD}" 135 COMMENT "Building native ${target}..." 136 USES_TERMINAL) 137 set(${output_path_var} "${output_path}" PARENT_SCOPE) 138endfunction() 139