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      1 include(AddFileDependencies)
      2 include(CMakeParseArguments)
      3 
      4 function(llvm_replace_compiler_option var old new)
      5   # Replaces a compiler option or switch `old' in `var' by `new'.
      6   # If `old' is not in `var', appends `new' to `var'.
      7   # Example: llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")
      8   # If the option already is on the variable, don't add it:
      9   if( "${${var}}" MATCHES "(^| )${new}($| )" )
     10     set(n "")
     11   else()
     12     set(n "${new}")
     13   endif()
     14   if( "${${var}}" MATCHES "(^| )${old}($| )" )
     15     string( REGEX REPLACE "(^| )${old}($| )" " ${n} " ${var} "${${var}}" )
     16   else()
     17     set( ${var} "${${var}} ${n}" )
     18   endif()
     19   set( ${var} "${${var}}" PARENT_SCOPE )
     20 endfunction(llvm_replace_compiler_option)
     21 
     22 macro(add_td_sources srcs)
     23   file(GLOB tds *.td)
     24   if( tds )
     25     source_group("TableGen descriptions" FILES ${tds})
     26     set_source_files_properties(${tds} PROPERTIES HEADER_FILE_ONLY ON)
     27     list(APPEND ${srcs} ${tds})
     28   endif()
     29 endmacro(add_td_sources)
     30 
     31 function(add_header_files_for_glob hdrs_out glob)
     32   file(GLOB hds ${glob})
     33   set(${hdrs_out} ${hds} PARENT_SCOPE)
     34 endfunction(add_header_files_for_glob)
     35 
     36 function(find_all_header_files hdrs_out additional_headerdirs)
     37   add_header_files_for_glob(hds *.h)
     38   list(APPEND all_headers ${hds})
     39 
     40   foreach(additional_dir ${additional_headerdirs})
     41     add_header_files_for_glob(hds "${additional_dir}/*.h")
     42     list(APPEND all_headers ${hds})
     43     add_header_files_for_glob(hds "${additional_dir}/*.inc")
     44     list(APPEND all_headers ${hds})
     45   endforeach(additional_dir)
     46 
     47   set( ${hdrs_out} ${all_headers} PARENT_SCOPE )
     48 endfunction(find_all_header_files)
     49 
     50 
     51 function(llvm_process_sources OUT_VAR)
     52   cmake_parse_arguments(ARG "" "" "ADDITIONAL_HEADERS;ADDITIONAL_HEADER_DIRS" ${ARGN})
     53   set(sources ${ARG_UNPARSED_ARGUMENTS})
     54   llvm_check_source_file_list( ${sources} )
     55   if( MSVC_IDE OR XCODE )
     56     # This adds .td and .h files to the Visual Studio solution:
     57     add_td_sources(sources)
     58     find_all_header_files(hdrs "${ARG_ADDITIONAL_HEADER_DIRS}")
     59     if (hdrs)
     60       set_source_files_properties(${hdrs} PROPERTIES HEADER_FILE_ONLY ON)
     61     endif()
     62     set_source_files_properties(${ARG_ADDITIONAL_HEADERS} PROPERTIES HEADER_FILE_ONLY ON)
     63     list(APPEND sources ${ARG_ADDITIONAL_HEADERS} ${hdrs})
     64   endif()
     65 
     66   set( ${OUT_VAR} ${sources} PARENT_SCOPE )
     67 endfunction(llvm_process_sources)
     68 
     69 
     70 function(llvm_check_source_file_list)
     71   set(listed ${ARGN})
     72   file(GLOB globbed *.c *.cpp)
     73   foreach(g ${globbed})
     74     get_filename_component(fn ${g} NAME)
     75 
     76     # Don't reject hidden files. Some editors create backups in the
     77     # same directory as the file.
     78     if (NOT "${fn}" MATCHES "^\\.")
     79       list(FIND LLVM_OPTIONAL_SOURCES ${fn} idx)
     80       if( idx LESS 0 )
     81         list(FIND listed ${fn} idx)
     82         if( idx LESS 0 )
     83           message(SEND_ERROR "Found unknown source file ${g}
     84 Please update ${CMAKE_CURRENT_LIST_FILE}\n")
     85         endif()
     86       endif()
     87     endif()
     88   endforeach()
     89 endfunction(llvm_check_source_file_list)
     90