1# LLVM_TARGET_DEFINITIONS must contain the name of the .td file to process. 2# Extra parameters for `tblgen' may come after `ofn' parameter. 3# Adds the name of the generated file to TABLEGEN_OUTPUT. 4 5function(tablegen project ofn) 6 # Validate calling context. 7 foreach(v 8 ${project}_TABLEGEN_EXE 9 LLVM_MAIN_SRC_DIR 10 LLVM_MAIN_INCLUDE_DIR 11 ) 12 if(NOT ${v}) 13 message(FATAL_ERROR "${v} not set") 14 endif() 15 endforeach() 16 17 file(GLOB local_tds "*.td") 18 file(GLOB_RECURSE global_tds "${LLVM_MAIN_INCLUDE_DIR}/llvm/*.td") 19 20 if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS}) 21 set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS}) 22 else() 23 set(LLVM_TARGET_DEFINITIONS_ABSOLUTE 24 ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS}) 25 endif() 26 add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp 27 # Generate tablegen output in a temporary file. 28 COMMAND ${${project}_TABLEGEN_EXE} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR} 29 -I ${LLVM_MAIN_SRC_DIR}/lib/Target -I ${LLVM_MAIN_INCLUDE_DIR} 30 ${LLVM_TARGET_DEFINITIONS_ABSOLUTE} 31 -o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp 32 # The file in LLVM_TARGET_DEFINITIONS may be not in the current 33 # directory and local_tds may not contain it, so we must 34 # explicitly list it here: 35 DEPENDS ${${project}_TABLEGEN_EXE} ${local_tds} ${global_tds} 36 ${LLVM_TARGET_DEFINITIONS_ABSOLUTE} 37 COMMENT "Building ${ofn}..." 38 ) 39 add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn} 40 # Only update the real output file if there are any differences. 41 # This prevents recompilation of all the files depending on it if there 42 # aren't any. 43 COMMAND ${CMAKE_COMMAND} -E copy_if_different 44 ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp 45 ${CMAKE_CURRENT_BINARY_DIR}/${ofn} 46 DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp 47 COMMENT "Updating ${ofn}..." 48 ) 49 50 # `make clean' must remove all those generated files: 51 set_property(DIRECTORY APPEND 52 PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${ofn}.tmp ${ofn}) 53 54 set(TABLEGEN_OUTPUT ${TABLEGEN_OUTPUT} ${CMAKE_CURRENT_BINARY_DIR}/${ofn} PARENT_SCOPE) 55 set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${ofn} PROPERTIES 56 GENERATED 1) 57endfunction() 58 59# Creates a target for publicly exporting tablegen dependencies. 60function(add_public_tablegen_target target) 61 if(NOT TABLEGEN_OUTPUT) 62 message(FATAL_ERROR "Requires tablegen() definitions as TABLEGEN_OUTPUT.") 63 endif() 64 add_custom_target(${target} 65 DEPENDS ${TABLEGEN_OUTPUT}) 66 if(LLVM_COMMON_DEPENDS) 67 add_dependencies(${target} ${LLVM_COMMON_DEPENDS}) 68 endif() 69 set_target_properties(${target} PROPERTIES FOLDER "Tablegenning") 70 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} ${target} PARENT_SCOPE) 71endfunction() 72 73if(CMAKE_CROSSCOMPILING) 74 set(CX_NATIVE_TG_DIR "${CMAKE_BINARY_DIR}/native") 75 76 add_custom_command(OUTPUT ${CX_NATIVE_TG_DIR} 77 COMMAND ${CMAKE_COMMAND} -E make_directory ${CX_NATIVE_TG_DIR} 78 COMMENT "Creating ${CX_NATIVE_TG_DIR}...") 79 80 # Forward a subset of configure options to discover additional tablegen modules. 81 get_cmake_property(_variableNames CACHE_VARIABLES) 82 foreach (_variableName ${_variableNames}) 83 if (_variableName MATCHES "^(LLVM_EXTERNAL_.*_SOURCE_DIR)$") 84 list(APPEND CX_CMAKE_ARGUMENTS "-D${_variableName}=\"${${_variableName}}\"") 85 endif () 86 endforeach() 87 88 add_custom_command(OUTPUT ${CX_NATIVE_TG_DIR}/CMakeCache.txt 89 # TODO: Clear the old CMakeCache.txt somehow without breaking restat. 90 COMMAND ${CMAKE_COMMAND} -UMAKE_TOOLCHAIN_FILE -DCMAKE_BUILD_TYPE=Release 91 -DLLVM_BUILD_POLLY=OFF ${CX_CMAKE_ARGUMENTS} 92 -G "${CMAKE_GENERATOR}" ${CMAKE_SOURCE_DIR} 93 WORKING_DIRECTORY ${CX_NATIVE_TG_DIR} 94 DEPENDS ${CX_NATIVE_TG_DIR} 95 COMMENT "Configuring native TableGen...") 96 97 add_custom_target(ConfigureNativeTableGen DEPENDS ${CX_NATIVE_TG_DIR}/CMakeCache.txt) 98 99 set_directory_properties(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES ${CX_NATIVE_TG_DIR}) 100endif() 101 102macro(add_tablegen target project) 103 set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS}) 104 set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen) 105 add_llvm_utility(${target} ${ARGN}) 106 set(LLVM_LINK_COMPONENTS ${${target}_OLD_LLVM_LINK_COMPONENTS}) 107 108 set(${project}_TABLEGEN "${target}" CACHE 109 STRING "Native TableGen executable. Saves building one when cross-compiling.") 110 111 # Upgrade existing LLVM_TABLEGEN setting. 112 if(${project} STREQUAL LLVM) 113 if(${LLVM_TABLEGEN} STREQUAL tblgen) 114 set(LLVM_TABLEGEN "${target}" CACHE 115 STRING "Native TableGen executable. Saves building one when cross-compiling." 116 FORCE) 117 endif() 118 endif() 119 120 # Effective tblgen executable to be used: 121 set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN} PARENT_SCOPE) 122 123 if(CMAKE_CROSSCOMPILING) 124 if( ${${project}_TABLEGEN} STREQUAL "${target}" ) 125 set(${project}_TABLEGEN_EXE "${CX_NATIVE_TG_DIR}/bin/${target}") 126 set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN_EXE} PARENT_SCOPE) 127 128 add_custom_command(OUTPUT ${${project}_TABLEGEN_EXE} 129 COMMAND ${CMAKE_BUILD_TOOL} ${target} 130 DEPENDS ${CX_NATIVE_TG_DIR}/CMakeCache.txt 131 WORKING_DIRECTORY ${CX_NATIVE_TG_DIR} 132 COMMENT "Building native TableGen...") 133 add_custom_target(${project}NativeTableGen DEPENDS ${${project}_TABLEGEN_EXE}) 134 add_dependencies(${project}NativeTableGen ConfigureNativeTableGen) 135 136 add_dependencies(${target} ${project}NativeTableGen) 137 endif() 138 endif() 139 140 if( MINGW ) 141 if(CMAKE_SIZEOF_VOID_P MATCHES "8") 142 set_target_properties(${target} PROPERTIES LINK_FLAGS -Wl,--stack,16777216) 143 endif(CMAKE_SIZEOF_VOID_P MATCHES "8") 144 endif( MINGW ) 145 if (${project} STREQUAL LLVM AND NOT LLVM_INSTALL_TOOLCHAIN_ONLY) 146 install(TARGETS ${target} 147 EXPORT LLVMExports 148 RUNTIME DESTINATION bin) 149 endif() 150 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${target}) 151endmacro() 152