1function(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 shell32) 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_TERMINFO) 14 if(HAVE_TERMINFO) 15 set(system_libs ${system_libs} ${TERMINFO_LIBS}) 16 endif() 17 endif() 18 if( LLVM_ENABLE_THREADS AND HAVE_LIBPTHREAD ) 19 set(system_libs ${system_libs} pthread) 20 endif() 21 if ( LLVM_ENABLE_ZLIB AND HAVE_LIBZ ) 22 set(system_libs ${system_libs} z) 23 endif() 24 endif( MINGW ) 25 endif( NOT MSVC ) 26 set(${return_var} ${system_libs} PARENT_SCOPE) 27endfunction(get_system_libs) 28 29 30function(link_system_libs target) 31 get_system_libs(llvm_system_libs) 32 target_link_libraries(${target} ${llvm_system_libs}) 33endfunction(link_system_libs) 34 35 36function(is_llvm_target_library library return_var) 37 # Sets variable `return_var' to ON if `library' corresponds to a 38 # LLVM supported target. To OFF if it doesn't. 39 set(${return_var} OFF PARENT_SCOPE) 40 string(TOUPPER "${library}" capitalized_lib) 41 string(TOUPPER "${LLVM_ALL_TARGETS}" targets) 42 foreach(t ${targets}) 43 if( capitalized_lib STREQUAL t OR 44 capitalized_lib STREQUAL "LLVM${t}" OR 45 capitalized_lib STREQUAL "LLVM${t}CODEGEN" OR 46 capitalized_lib STREQUAL "LLVM${t}ASMPARSER" OR 47 capitalized_lib STREQUAL "LLVM${t}ASMPRINTER" OR 48 capitalized_lib STREQUAL "LLVM${t}DISASSEMBLER" OR 49 capitalized_lib STREQUAL "LLVM${t}INFO" ) 50 set(${return_var} ON PARENT_SCOPE) 51 break() 52 endif() 53 endforeach() 54endfunction(is_llvm_target_library) 55 56 57macro(llvm_config executable) 58 explicit_llvm_config(${executable} ${ARGN}) 59endmacro(llvm_config) 60 61 62function(explicit_llvm_config executable) 63 set( link_components ${ARGN} ) 64 65 explicit_map_components_to_libraries(LIBRARIES ${link_components}) 66 target_link_libraries(${executable} ${LIBRARIES}) 67endfunction(explicit_llvm_config) 68 69 70# This is a variant intended for the final user: 71function(llvm_map_components_to_libraries OUT_VAR) 72 explicit_map_components_to_libraries(result ${ARGN}) 73 get_system_libs(sys_result) 74 set( ${OUT_VAR} ${result} ${sys_result} PARENT_SCOPE ) 75endfunction(llvm_map_components_to_libraries) 76 77 78function(explicit_map_components_to_libraries out_libs) 79 set( link_components ${ARGN} ) 80 get_property(llvm_libs GLOBAL PROPERTY LLVM_LIBS) 81 string(TOUPPER "${llvm_libs}" capitalized_libs) 82 83 # Expand some keywords: 84 list(FIND LLVM_TARGETS_TO_BUILD "${LLVM_NATIVE_ARCH}" have_native_backend) 85 list(FIND link_components "engine" engine_required) 86 if( NOT engine_required EQUAL -1 ) 87 list(FIND LLVM_TARGETS_WITH_JIT "${LLVM_NATIVE_ARCH}" have_jit) 88 if( NOT have_native_backend EQUAL -1 AND NOT have_jit EQUAL -1 ) 89 list(APPEND link_components "jit") 90 list(APPEND link_components "native") 91 else() 92 list(APPEND link_components "interpreter") 93 endif() 94 endif() 95 list(FIND link_components "native" native_required) 96 if( NOT native_required EQUAL -1 ) 97 if( NOT have_native_backend EQUAL -1 ) 98 list(APPEND link_components ${LLVM_NATIVE_ARCH}) 99 endif() 100 endif() 101 102 # Translate symbolic component names to real libraries: 103 foreach(c ${link_components}) 104 # add codegen, asmprinter, asmparser, disassembler 105 list(FIND LLVM_TARGETS_TO_BUILD ${c} idx) 106 if( NOT idx LESS 0 ) 107 list(FIND llvm_libs "LLVM${c}CodeGen" idx) 108 if( NOT idx LESS 0 ) 109 list(APPEND expanded_components "LLVM${c}CodeGen") 110 else() 111 list(FIND llvm_libs "LLVM${c}" idx) 112 if( NOT idx LESS 0 ) 113 list(APPEND expanded_components "LLVM${c}") 114 else() 115 message(FATAL_ERROR "Target ${c} is not in the set of libraries.") 116 endif() 117 endif() 118 list(FIND llvm_libs "LLVM${c}AsmPrinter" asmidx) 119 if( NOT asmidx LESS 0 ) 120 list(APPEND expanded_components "LLVM${c}AsmPrinter") 121 endif() 122 list(FIND llvm_libs "LLVM${c}AsmParser" asmidx) 123 if( NOT asmidx LESS 0 ) 124 list(APPEND expanded_components "LLVM${c}AsmParser") 125 endif() 126 list(FIND llvm_libs "LLVM${c}Info" asmidx) 127 if( NOT asmidx LESS 0 ) 128 list(APPEND expanded_components "LLVM${c}Info") 129 endif() 130 list(FIND llvm_libs "LLVM${c}Disassembler" asmidx) 131 if( NOT asmidx LESS 0 ) 132 list(APPEND expanded_components "LLVM${c}Disassembler") 133 endif() 134 elseif( c STREQUAL "native" ) 135 # already processed 136 elseif( c STREQUAL "nativecodegen" ) 137 list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}CodeGen") 138 elseif( c STREQUAL "backend" ) 139 # same case as in `native'. 140 elseif( c STREQUAL "engine" ) 141 # already processed 142 elseif( c STREQUAL "all" ) 143 list(APPEND expanded_components ${llvm_libs}) 144 else( NOT idx LESS 0 ) 145 # Canonize the component name: 146 string(TOUPPER "${c}" capitalized) 147 list(FIND capitalized_libs LLVM${capitalized} lib_idx) 148 if( lib_idx LESS 0 ) 149 # The component is unknown. Maybe is an omitted target? 150 is_llvm_target_library(${c} iltl_result) 151 if( NOT iltl_result ) 152 message(FATAL_ERROR "Library `${c}' not found in list of llvm libraries.") 153 endif() 154 else( lib_idx LESS 0 ) 155 list(GET llvm_libs ${lib_idx} canonical_lib) 156 list(APPEND expanded_components ${canonical_lib}) 157 endif( lib_idx LESS 0 ) 158 endif( NOT idx LESS 0 ) 159 endforeach(c) 160 # Expand dependencies while topologically sorting the list of libraries: 161 list(LENGTH expanded_components lst_size) 162 set(cursor 0) 163 set(processed) 164 while( cursor LESS lst_size ) 165 list(GET expanded_components ${cursor} lib) 166 get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${lib}) 167 list(APPEND expanded_components ${lib_deps}) 168 # Remove duplicates at the front: 169 list(REVERSE expanded_components) 170 list(REMOVE_DUPLICATES expanded_components) 171 list(REVERSE expanded_components) 172 list(APPEND processed ${lib}) 173 # Find the maximum index that doesn't have to be re-processed: 174 while(NOT "${expanded_components}" MATCHES "^${processed}.*" ) 175 list(REMOVE_AT processed -1) 176 endwhile() 177 list(LENGTH processed cursor) 178 list(LENGTH expanded_components lst_size) 179 endwhile( cursor LESS lst_size ) 180 # Return just the libraries included in this build: 181 set(result) 182 foreach(c ${expanded_components}) 183 list(FIND llvm_libs ${c} lib_idx) 184 if( NOT lib_idx LESS 0 ) 185 set(result ${result} ${c}) 186 endif() 187 endforeach(c) 188 set(${out_libs} ${result} PARENT_SCOPE) 189endfunction(explicit_map_components_to_libraries) 190