1 function(get_system_libs return_var) 2 # Returns in `return_var' a list of system libraries used by LLVM. 3 if( NOT MSVC ) 4 if( MINGW ) 5 set(system_libs ${system_libs} imagehlp psapi) 6 elseif( CMAKE_HOST_UNIX ) 7 if( HAVE_LIBRT ) 8 set(system_libs ${system_libs} rt) 9 endif() 10 if( HAVE_LIBDL ) 11 set(system_libs ${system_libs} ${CMAKE_DL_LIBS}) 12 endif() 13 if(LLVM_ENABLE_CURSES) 14 if(HAVE_NCURSESW) 15 set(system_libs ${system_libs} ncursesw) 16 elseif(HAVE_NCURSES) 17 set(system_libs ${system_libs} ncurses) 18 elseif(HAVE_CURSES) 19 set(system_libs ${system_libs} curses) 20 endif() 21 endif() 22 if( LLVM_ENABLE_THREADS AND HAVE_LIBPTHREAD ) 23 set(system_libs ${system_libs} pthread) 24 endif() 25 if ( LLVM_ENABLE_ZLIB AND HAVE_LIBZ ) 26 set(system_libs ${system_libs} z) 27 endif() 28 endif( MINGW ) 29 endif( NOT MSVC ) 30 set(${return_var} ${system_libs} PARENT_SCOPE) 31 endfunction(get_system_libs) 32 33 34 function(link_system_libs target) 35 get_system_libs(llvm_system_libs) 36 target_link_libraries(${target} ${llvm_system_libs}) 37 endfunction(link_system_libs) 38 39 40 function(is_llvm_target_library library return_var) 41 # Sets variable `return_var' to ON if `library' corresponds to a 42 # LLVM supported target. To OFF if it doesn't. 43 set(${return_var} OFF PARENT_SCOPE) 44 string(TOUPPER "${library}" capitalized_lib) 45 string(TOUPPER "${LLVM_ALL_TARGETS}" targets) 46 foreach(t ${targets}) 47 if( capitalized_lib STREQUAL t OR 48 capitalized_lib STREQUAL "LLVM${t}" OR 49 capitalized_lib STREQUAL "LLVM${t}CODEGEN" OR 50 capitalized_lib STREQUAL "LLVM${t}ASMPARSER" OR 51 capitalized_lib STREQUAL "LLVM${t}ASMPRINTER" OR 52 capitalized_lib STREQUAL "LLVM${t}DISASSEMBLER" OR 53 capitalized_lib STREQUAL "LLVM${t}INFO" ) 54 set(${return_var} ON PARENT_SCOPE) 55 break() 56 endif() 57 endforeach() 58 endfunction(is_llvm_target_library) 59 60 61 macro(llvm_config executable) 62 explicit_llvm_config(${executable} ${ARGN}) 63 endmacro(llvm_config) 64 65 66 function(explicit_llvm_config executable) 67 set( link_components ${ARGN} ) 68 69 explicit_map_components_to_libraries(LIBRARIES ${link_components}) 70 target_link_libraries(${executable} ${LIBRARIES}) 71 endfunction(explicit_llvm_config) 72 73 74 # This is a variant intended for the final user: 75 function(llvm_map_components_to_libraries OUT_VAR) 76 explicit_map_components_to_libraries(result ${ARGN}) 77 get_system_libs(sys_result) 78 set( ${OUT_VAR} ${result} ${sys_result} PARENT_SCOPE ) 79 endfunction(llvm_map_components_to_libraries) 80 81 82 function(explicit_map_components_to_libraries out_libs) 83 set( link_components ${ARGN} ) 84 get_property(llvm_libs GLOBAL PROPERTY LLVM_LIBS) 85 string(TOUPPER "${llvm_libs}" capitalized_libs) 86 87 # Expand some keywords: 88 list(FIND LLVM_TARGETS_TO_BUILD "${LLVM_NATIVE_ARCH}" have_native_backend) 89 list(FIND link_components "engine" engine_required) 90 if( NOT engine_required EQUAL -1 ) 91 list(FIND LLVM_TARGETS_WITH_JIT "${LLVM_NATIVE_ARCH}" have_jit) 92 if( NOT have_native_backend EQUAL -1 AND NOT have_jit EQUAL -1 ) 93 list(APPEND link_components "jit") 94 list(APPEND link_components "native") 95 else() 96 list(APPEND link_components "interpreter") 97 endif() 98 endif() 99 list(FIND link_components "native" native_required) 100 if( NOT native_required EQUAL -1 ) 101 if( NOT have_native_backend EQUAL -1 ) 102 list(APPEND link_components ${LLVM_NATIVE_ARCH}) 103 endif() 104 endif() 105 106 # Translate symbolic component names to real libraries: 107 foreach(c ${link_components}) 108 # add codegen, asmprinter, asmparser, disassembler 109 list(FIND LLVM_TARGETS_TO_BUILD ${c} idx) 110 if( NOT idx LESS 0 ) 111 list(FIND llvm_libs "LLVM${c}CodeGen" idx) 112 if( NOT idx LESS 0 ) 113 list(APPEND expanded_components "LLVM${c}CodeGen") 114 else() 115 list(FIND llvm_libs "LLVM${c}" idx) 116 if( NOT idx LESS 0 ) 117 list(APPEND expanded_components "LLVM${c}") 118 else() 119 message(FATAL_ERROR "Target ${c} is not in the set of libraries.") 120 endif() 121 endif() 122 list(FIND llvm_libs "LLVM${c}AsmPrinter" asmidx) 123 if( NOT asmidx LESS 0 ) 124 list(APPEND expanded_components "LLVM${c}AsmPrinter") 125 endif() 126 list(FIND llvm_libs "LLVM${c}AsmParser" asmidx) 127 if( NOT asmidx LESS 0 ) 128 list(APPEND expanded_components "LLVM${c}AsmParser") 129 endif() 130 list(FIND llvm_libs "LLVM${c}Info" asmidx) 131 if( NOT asmidx LESS 0 ) 132 list(APPEND expanded_components "LLVM${c}Info") 133 endif() 134 list(FIND llvm_libs "LLVM${c}Disassembler" asmidx) 135 if( NOT asmidx LESS 0 ) 136 list(APPEND expanded_components "LLVM${c}Disassembler") 137 endif() 138 elseif( c STREQUAL "native" ) 139 # already processed 140 elseif( c STREQUAL "nativecodegen" ) 141 list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}CodeGen") 142 elseif( c STREQUAL "backend" ) 143 # same case as in `native'. 144 elseif( c STREQUAL "engine" ) 145 # already processed 146 elseif( c STREQUAL "all" ) 147 list(APPEND expanded_components ${llvm_libs}) 148 else( NOT idx LESS 0 ) 149 # Canonize the component name: 150 string(TOUPPER "${c}" capitalized) 151 list(FIND capitalized_libs LLVM${capitalized} lib_idx) 152 if( lib_idx LESS 0 ) 153 # The component is unknown. Maybe is an omitted target? 154 is_llvm_target_library(${c} iltl_result) 155 if( NOT iltl_result ) 156 message(FATAL_ERROR "Library `${c}' not found in list of llvm libraries.") 157 endif() 158 else( lib_idx LESS 0 ) 159 list(GET llvm_libs ${lib_idx} canonical_lib) 160 list(APPEND expanded_components ${canonical_lib}) 161 endif( lib_idx LESS 0 ) 162 endif( NOT idx LESS 0 ) 163 endforeach(c) 164 # Expand dependencies while topologically sorting the list of libraries: 165 list(LENGTH expanded_components lst_size) 166 set(cursor 0) 167 set(processed) 168 while( cursor LESS lst_size ) 169 list(GET expanded_components ${cursor} lib) 170 get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${lib}) 171 list(APPEND expanded_components ${lib_deps}) 172 # Remove duplicates at the front: 173 list(REVERSE expanded_components) 174 list(REMOVE_DUPLICATES expanded_components) 175 list(REVERSE expanded_components) 176 list(APPEND processed ${lib}) 177 # Find the maximum index that doesn't have to be re-processed: 178 while(NOT "${expanded_components}" MATCHES "^${processed}.*" ) 179 list(REMOVE_AT processed -1) 180 endwhile() 181 list(LENGTH processed cursor) 182 list(LENGTH expanded_components lst_size) 183 endwhile( cursor LESS lst_size ) 184 # Return just the libraries included in this build: 185 set(result) 186 foreach(c ${expanded_components}) 187 list(FIND llvm_libs ${c} lib_idx) 188 if( NOT lib_idx LESS 0 ) 189 set(result ${result} ${c}) 190 endif() 191 endforeach(c) 192 set(${out_libs} ${result} PARENT_SCOPE) 193 endfunction(explicit_map_components_to_libraries) 194
