1 function(get_system_libs return_var)
2 message(AUTHOR_WARNING "get_system_libs no longer needed")
3 set(${return_var} "" PARENT_SCOPE)
7 function(link_system_libs target)
8 message(AUTHOR_WARNING "link_system_libs no longer needed")
12 function(is_llvm_target_library library return_var)
13 # Sets variable `return_var' to ON if `library' corresponds to a
14 # LLVM supported target. To OFF if it doesn't.
15 set(${return_var} OFF PARENT_SCOPE)
16 string(TOUPPER "${library}" capitalized_lib)
17 string(TOUPPER "${LLVM_ALL_TARGETS}" targets)
19 if( capitalized_lib STREQUAL t OR
20 capitalized_lib STREQUAL "LLVM${t}" OR
21 capitalized_lib STREQUAL "LLVM${t}CODEGEN" OR
22 capitalized_lib STREQUAL "LLVM${t}ASMPARSER" OR
23 capitalized_lib STREQUAL "LLVM${t}ASMPRINTER" OR
24 capitalized_lib STREQUAL "LLVM${t}DISASSEMBLER" OR
25 capitalized_lib STREQUAL "LLVM${t}INFO" )
26 set(${return_var} ON PARENT_SCOPE)
30 endfunction(is_llvm_target_library)
33 macro(llvm_config executable)
34 cmake_parse_arguments(ARG "USE_SHARED" "" "" ${ARGN})
35 set(link_components ${ARG_UNPARSED_ARGUMENTS})
38 # If USE_SHARED is specified, then we link against libLLVM,
39 # but also against the component libraries below. This is
40 # done in case libLLVM does not contain all of the components
41 # the target requires.
43 # Strip LLVM_DYLIB_COMPONENTS out of link_components.
44 # To do this, we need special handling for "all", since that
45 # may imply linking to libraries that are not included in
48 if (DEFINED link_components AND DEFINED LLVM_DYLIB_COMPONENTS)
49 if("${LLVM_DYLIB_COMPONENTS}" STREQUAL "all")
50 set(link_components "")
52 list(REMOVE_ITEM link_components ${LLVM_DYLIB_COMPONENTS})
56 target_link_libraries(${executable} LLVM)
59 explicit_llvm_config(${executable} ${link_components})
63 function(explicit_llvm_config executable)
64 set( link_components ${ARGN} )
66 llvm_map_components_to_libnames(LIBRARIES ${link_components})
67 get_target_property(t ${executable} TYPE)
68 if("x${t}" STREQUAL "xSTATIC_LIBRARY")
69 target_link_libraries(${executable} INTERFACE ${LIBRARIES})
70 elseif("x${t}" STREQUAL "xSHARED_LIBRARY" OR "x${t}" STREQUAL "xMODULE_LIBRARY")
71 target_link_libraries(${executable} PRIVATE ${LIBRARIES})
73 # Use plain form for legacy user.
74 target_link_libraries(${executable} ${LIBRARIES})
76 endfunction(explicit_llvm_config)
80 function(llvm_map_components_to_libraries OUT_VAR)
81 message(AUTHOR_WARNING "Using llvm_map_components_to_libraries() is deprecated. Use llvm_map_components_to_libnames() instead")
82 explicit_map_components_to_libraries(result ${ARGN})
83 set( ${OUT_VAR} ${result} ${sys_result} PARENT_SCOPE )
84 endfunction(llvm_map_components_to_libraries)
86 # This is a variant intended for the final user:
87 # Map LINK_COMPONENTS to actual libnames.
88 function(llvm_map_components_to_libnames out_libs)
89 set( link_components ${ARGN} )
90 if(NOT LLVM_AVAILABLE_LIBS)
91 # Inside LLVM itself available libs are in a global property.
92 get_property(LLVM_AVAILABLE_LIBS GLOBAL PROPERTY LLVM_LIBS)
94 string(TOUPPER "${LLVM_AVAILABLE_LIBS}" capitalized_libs)
96 # Expand some keywords:
97 list(FIND LLVM_TARGETS_TO_BUILD "${LLVM_NATIVE_ARCH}" have_native_backend)
98 list(FIND link_components "engine" engine_required)
99 if( NOT engine_required EQUAL -1 )
100 list(FIND LLVM_TARGETS_WITH_JIT "${LLVM_NATIVE_ARCH}" have_jit)
101 if( NOT have_native_backend EQUAL -1 AND NOT have_jit EQUAL -1 )
102 list(APPEND link_components "jit")
103 list(APPEND link_components "native")
105 list(APPEND link_components "interpreter")
108 list(FIND link_components "native" native_required)
109 if( NOT native_required EQUAL -1 )
110 if( NOT have_native_backend EQUAL -1 )
111 list(APPEND link_components ${LLVM_NATIVE_ARCH})
115 # Translate symbolic component names to real libraries:
116 foreach(c ${link_components})
117 # add codegen, asmprinter, asmparser, disassembler
118 list(FIND LLVM_TARGETS_TO_BUILD ${c} idx)
120 if( TARGET LLVM${c}CodeGen )
121 list(APPEND expanded_components "LLVM${c}CodeGen")
123 if( TARGET LLVM${c} )
124 list(APPEND expanded_components "LLVM${c}")
126 message(FATAL_ERROR "Target ${c} is not in the set of libraries.")
129 if( TARGET LLVM${c}AsmPrinter )
130 list(APPEND expanded_components "LLVM${c}AsmPrinter")
132 if( TARGET LLVM${c}AsmParser )
133 list(APPEND expanded_components "LLVM${c}AsmParser")
135 if( TARGET LLVM${c}Desc )
136 list(APPEND expanded_components "LLVM${c}Desc")
138 if( TARGET LLVM${c}Info )
139 list(APPEND expanded_components "LLVM${c}Info")
141 if( TARGET LLVM${c}Disassembler )
142 list(APPEND expanded_components "LLVM${c}Disassembler")
144 elseif( c STREQUAL "native" )
146 elseif( c STREQUAL "nativecodegen" )
147 list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}CodeGen")
148 if( TARGET LLVM${LLVM_NATIVE_ARCH}Desc )
149 list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}Desc")
151 if( TARGET LLVM${LLVM_NATIVE_ARCH}Info )
152 list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}Info")
154 elseif( c STREQUAL "backend" )
155 # same case as in `native'.
156 elseif( c STREQUAL "engine" )
158 elseif( c STREQUAL "all" )
159 list(APPEND expanded_components ${LLVM_AVAILABLE_LIBS})
160 elseif( c STREQUAL "AllTargetsAsmPrinters" )
161 # Link all the asm printers from all the targets
162 foreach(t ${LLVM_TARGETS_TO_BUILD})
163 if( TARGET LLVM${t}AsmPrinter )
164 list(APPEND expanded_components "LLVM${t}AsmPrinter")
167 elseif( c STREQUAL "AllTargetsAsmParsers" )
168 # Link all the asm parsers from all the targets
169 foreach(t ${LLVM_TARGETS_TO_BUILD})
170 if( TARGET LLVM${t}AsmParser )
171 list(APPEND expanded_components "LLVM${t}AsmParser")
174 elseif( c STREQUAL "AllTargetsDescs" )
175 # Link all the descs from all the targets
176 foreach(t ${LLVM_TARGETS_TO_BUILD})
177 if( TARGET LLVM${t}Desc )
178 list(APPEND expanded_components "LLVM${t}Desc")
181 elseif( c STREQUAL "AllTargetsDisassemblers" )
182 # Link all the disassemblers from all the targets
183 foreach(t ${LLVM_TARGETS_TO_BUILD})
184 if( TARGET LLVM${t}Disassembler )
185 list(APPEND expanded_components "LLVM${t}Disassembler")
188 elseif( c STREQUAL "AllTargetsInfos" )
189 # Link all the infos from all the targets
190 foreach(t ${LLVM_TARGETS_TO_BUILD})
191 if( TARGET LLVM${t}Info )
192 list(APPEND expanded_components "LLVM${t}Info")
195 else( NOT idx LESS 0 )
196 # Canonize the component name:
197 string(TOUPPER "${c}" capitalized)
198 list(FIND capitalized_libs LLVM${capitalized} lib_idx)
200 # The component is unknown. Maybe is an omitted target?
201 is_llvm_target_library(${c} iltl_result)
202 if( NOT iltl_result )
203 message(FATAL_ERROR "Library `${c}' not found in list of llvm libraries.")
205 else( lib_idx LESS 0 )
206 list(GET LLVM_AVAILABLE_LIBS ${lib_idx} canonical_lib)
207 list(APPEND expanded_components ${canonical_lib})
208 endif( lib_idx LESS 0 )
209 endif( NOT idx LESS 0 )
212 set(${out_libs} ${expanded_components} PARENT_SCOPE)
215 # Perform a post-order traversal of the dependency graph.
216 # This duplicates the algorithm used by llvm-config, originally
217 # in tools/llvm-config/llvm-config.cpp, function ComputeLibsForComponents.
218 function(expand_topologically name required_libs visited_libs)
219 list(FIND visited_libs ${name} found)
221 list(APPEND visited_libs ${name})
222 set(visited_libs ${visited_libs} PARENT_SCOPE)
224 get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${name})
225 foreach( lib_dep ${lib_deps} )
226 expand_topologically(${lib_dep} "${required_libs}" "${visited_libs}")
227 set(required_libs ${required_libs} PARENT_SCOPE)
228 set(visited_libs ${visited_libs} PARENT_SCOPE)
231 list(APPEND required_libs ${name})
232 set(required_libs ${required_libs} PARENT_SCOPE)
236 # Expand dependencies while topologically sorting the list of libraries:
237 function(llvm_expand_dependencies out_libs)
238 set(expanded_components ${ARGN})
242 foreach( lib ${expanded_components} )
243 expand_topologically(${lib} "${required_libs}" "${visited_libs}")
246 list(REVERSE required_libs)
247 set(${out_libs} ${required_libs} PARENT_SCOPE)
250 function(explicit_map_components_to_libraries out_libs)
251 llvm_map_components_to_libnames(link_libs ${ARGN})
252 llvm_expand_dependencies(expanded_components ${link_libs})
253 # Return just the libraries included in this build:
255 foreach(c ${expanded_components})
257 set(result ${result} ${c})
260 set(${out_libs} ${result} PARENT_SCOPE)
261 endfunction(explicit_map_components_to_libraries)