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1function(llvm_replace_compiler_option var old new)2 # Replaces a compiler option or switch `old' in `var' by `new'.3 # If `old' is not in `var', appends `new' to `var'.4 # Example: llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")5 # If the option already is on the variable, don't add it:6 if( "${${var}}" MATCHES "(^| )${new}($| )" )7 set(n "")8 else()9 set(n "${new}")10 endif()11 if( "${${var}}" MATCHES "(^| )${old}($| )" )12 string( REGEX REPLACE "(^| )${old}($| )" " ${n} " ${var} "${${var}}" )13 else()14 set( ${var} "${${var}} ${n}" )15 endif()16 set( ${var} "${${var}}" PARENT_SCOPE )17endfunction(llvm_replace_compiler_option)18 19macro(add_td_sources srcs)20 file(GLOB tds *.td)21 if( tds )22 source_group("TableGen descriptions" FILES ${tds})23 set_source_files_properties(${tds} PROPERTIES HEADER_FILE_ONLY ON)24 list(APPEND ${srcs} ${tds})25 endif()26endmacro(add_td_sources)27 28function(add_header_files_for_glob hdrs_out glob)29 file(GLOB hds ${glob})30 set(filtered)31 foreach(file ${hds})32 # Explicit existence check is necessary to filter dangling symlinks33 # out. See https://bugs.gentoo.org/674662.34 if(EXISTS ${file})35 list(APPEND filtered ${file})36 endif()37 endforeach()38 set(${hdrs_out} ${filtered} PARENT_SCOPE)39endfunction(add_header_files_for_glob)40 41function(find_all_header_files hdrs_out additional_headerdirs)42 add_header_files_for_glob(hds *.h)43 list(APPEND all_headers ${hds})44 45 foreach(additional_dir ${additional_headerdirs})46 add_header_files_for_glob(hds "${additional_dir}/*.h")47 list(APPEND all_headers ${hds})48 add_header_files_for_glob(hds "${additional_dir}/*.inc")49 list(APPEND all_headers ${hds})50 endforeach(additional_dir)51 52 set( ${hdrs_out} ${all_headers} PARENT_SCOPE )53endfunction(find_all_header_files)54 55 56function(llvm_process_sources OUT_VAR)57 cmake_parse_arguments(ARG "PARTIAL_SOURCES_INTENDED" "" "ADDITIONAL_HEADERS;ADDITIONAL_HEADER_DIRS" ${ARGN})58 set(sources ${ARG_UNPARSED_ARGUMENTS})59 llvm_check_source_file_list(${sources})60 61 # This adds .td and .h files to the Visual Studio solution:62 add_td_sources(sources)63 find_all_header_files(hdrs "${ARG_ADDITIONAL_HEADER_DIRS}")64 if (hdrs)65 set_source_files_properties(${hdrs} PROPERTIES HEADER_FILE_ONLY ON)66 endif()67 set_source_files_properties(${ARG_ADDITIONAL_HEADERS} PROPERTIES HEADER_FILE_ONLY ON)68 list(APPEND sources ${ARG_ADDITIONAL_HEADERS} ${hdrs})69 70 set( ${OUT_VAR} ${sources} PARENT_SCOPE )71endfunction(llvm_process_sources)72 73 74function(llvm_check_source_file_list)75 cmake_parse_arguments(ARG "" "SOURCE_DIR" "" ${ARGN})76 foreach(l ${ARG_UNPARSED_ARGUMENTS})77 get_filename_component(fp ${l} REALPATH)78 list(APPEND listed ${fp})79 endforeach()80 81 if(ARG_SOURCE_DIR)82 file(GLOB globbed83 "${ARG_SOURCE_DIR}/*.c" "${ARG_SOURCE_DIR}/*.cpp")84 else()85 file(GLOB globbed *.c *.cpp)86 endif()87 88 set_property(DIRECTORY APPEND PROPERTY LLVM_SOURCE_FILES ${listed})89 if (ARG_PARTIAL_SOURCES_INTENDED) # llvm_process_source's scope90 return()91 endif()92 get_directory_property(listed LLVM_SOURCE_FILES)93 94 foreach(g ${globbed})95 get_filename_component(fn ${g} NAME)96 if(ARG_SOURCE_DIR)97 set(entry "${g}")98 else()99 set(entry "${fn}")100 endif()101 get_filename_component(gp ${g} REALPATH)102 103 # Don't reject hidden files. Some editors create backups in the104 # same directory as the file.105 if (NOT "${fn}" MATCHES "^\\.")106 if(NOT ${entry} IN_LIST LLVM_OPTIONAL_SOURCES)107 if(NOT ${gp} IN_LIST listed)108 if(ARG_SOURCE_DIR)109 set(fn_relative "${ARG_SOURCE_DIR}/${fn}")110 else()111 set(fn_relative "${fn}")112 endif()113 message(SEND_ERROR "Found erroneous configuration for source file ${fn_relative}114LLVM's build system enforces that all source files are added to a build target, \115that exactly one build target exists in each directory, \116and that this target lists all files in that directory. \117If you want multiple targets in the same directory, add \118PARTIAL_SOURCES_INTENDED to the target specification, though it is discouraged.119Please update ${CMAKE_CURRENT_LIST_FILE}\n")120 endif()121 endif()122 endif()123 endforeach()124endfunction(llvm_check_source_file_list)125