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 5 function(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_TARGET} ${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) 57 endfunction() 58 59 # Creates a target for publicly exporting tablegen dependencies. 60 function(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) 71 endfunction() 72 73 if(LLVM_USE_HOST_TOOLS) 74 add_custom_command(OUTPUT LIB_LLVMSUPPORT 75 COMMAND ${CMAKE_COMMAND} --build . --target LLVMSupport --config Release 76 DEPENDS CONFIGURE_LLVM_NATIVE 77 WORKING_DIRECTORY ${LLVM_NATIVE_BUILD} 78 COMMENT "Building libLLVMSupport for native TableGen...") 79 add_custom_target(NATIVE_LIB_LLVMSUPPORT DEPENDS LIB_LLVMSUPPORT) 80 81 add_custom_command(OUTPUT LIB_LLVMTABLEGEN 82 COMMAND ${CMAKE_COMMAND} --build . --target LLVMTableGen --config Release 83 DEPENDS CONFIGURE_LLVM_NATIVE 84 WORKING_DIRECTORY ${LLVM_NATIVE_BUILD} 85 COMMENT "Building libLLVMTableGen for native TableGen...") 86 add_custom_target(NATIVE_LIB_LLVMTABLEGEN DEPENDS LIB_LLVMTABLEGEN) 87 endif(LLVM_USE_HOST_TOOLS) 88 89 macro(add_tablegen target project) 90 set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS}) 91 set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen) 92 93 if(NOT XCODE) 94 # FIXME: It leaks to user, callee of add_tablegen. 95 set(LLVM_ENABLE_OBJLIB ON) 96 endif() 97 98 add_llvm_utility(${target} ${ARGN}) 99 set(LLVM_LINK_COMPONENTS ${${target}_OLD_LLVM_LINK_COMPONENTS}) 100 101 set(${project}_TABLEGEN "${target}" CACHE 102 STRING "Native TableGen executable. Saves building one when cross-compiling.") 103 104 # Upgrade existing LLVM_TABLEGEN setting. 105 if(${project} STREQUAL LLVM) 106 if(${LLVM_TABLEGEN} STREQUAL tblgen) 107 set(LLVM_TABLEGEN "${target}" CACHE 108 STRING "Native TableGen executable. Saves building one when cross-compiling." 109 FORCE) 110 endif() 111 endif() 112 113 # Effective tblgen executable to be used: 114 set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN} PARENT_SCOPE) 115 set(${project}_TABLEGEN_TARGET ${${project}_TABLEGEN} PARENT_SCOPE) 116 117 if(LLVM_USE_HOST_TOOLS) 118 if( ${${project}_TABLEGEN} STREQUAL "${target}" ) 119 if (NOT CMAKE_CONFIGURATION_TYPES) 120 set(${project}_TABLEGEN_EXE "${LLVM_NATIVE_BUILD}/bin/${target}") 121 else() 122 set(${project}_TABLEGEN_EXE "${LLVM_NATIVE_BUILD}/Release/bin/${target}") 123 endif() 124 set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN_EXE} PARENT_SCOPE) 125 126 add_custom_command(OUTPUT ${${project}_TABLEGEN_EXE} 127 COMMAND ${CMAKE_COMMAND} --build . --target ${target} --config Release 128 DEPENDS ${target} NATIVE_LIB_LLVMSUPPORT NATIVE_LIB_LLVMTABLEGEN 129 WORKING_DIRECTORY ${LLVM_NATIVE_BUILD} 130 COMMENT "Building native TableGen...") 131 add_custom_target(${project}-tablegen-host DEPENDS ${${project}_TABLEGEN_EXE}) 132 set(${project}_TABLEGEN_TARGET ${project}-tablegen-host PARENT_SCOPE) 133 endif() 134 endif() 135 136 if( MINGW ) 137 if(CMAKE_SIZEOF_VOID_P MATCHES "8") 138 set_target_properties(${target} PROPERTIES LINK_FLAGS -Wl,--stack,16777216) 139 endif(CMAKE_SIZEOF_VOID_P MATCHES "8") 140 endif( MINGW ) 141 if (${project} STREQUAL LLVM AND NOT LLVM_INSTALL_TOOLCHAIN_ONLY) 142 install(TARGETS ${target} 143 EXPORT LLVMExports 144 RUNTIME DESTINATION ${LLVM_TOOLS_INSTALL_DIR}) 145 endif() 146 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${target}) 147 endmacro() 148
