COFF: Do not assign linker-weak symbols to selectany comdat sections.
[oota-llvm.git] / cmake / modules / LLVMProcessSources.cmake
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)