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 ${ARG_UNPARSED_ARGUMENTS})
38 # If USE_SHARED is specified, then we link against libLLVM,
39 # but also against the component libraries below. This is
40 # done in case libLLVM does not contain all of the components
41 # the target requires.
43 # TODO strip LLVM_DYLIB_COMPONENTS out of link_components.
44 # To do this, we need special handling for "all", since that
45 # may imply linking to libraries that are not included in
47 target_link_libraries(${executable} LLVM)
50 explicit_llvm_config(${executable} ${link_components})
54 function(explicit_llvm_config executable)
55 set( link_components ${ARGN} )
57 llvm_map_components_to_libnames(LIBRARIES ${link_components})
58 get_target_property(t ${executable} TYPE)
59 if("x${t}" STREQUAL "xSTATIC_LIBRARY")
60 target_link_libraries(${executable} INTERFACE ${LIBRARIES})
61 elseif("x${t}" STREQUAL "xSHARED_LIBRARY" OR "x${t}" STREQUAL "xMODULE_LIBRARY")
62 target_link_libraries(${executable} PRIVATE ${LIBRARIES})
64 # Use plain form for legacy user.
65 target_link_libraries(${executable} ${LIBRARIES})
67 endfunction(explicit_llvm_config)
71 function(llvm_map_components_to_libraries OUT_VAR)
72 message(AUTHOR_WARNING "Using llvm_map_components_to_libraries() is deprecated. Use llvm_map_components_to_libnames() instead")
73 explicit_map_components_to_libraries(result ${ARGN})
74 set( ${OUT_VAR} ${result} ${sys_result} PARENT_SCOPE )
75 endfunction(llvm_map_components_to_libraries)
77 # This is a variant intended for the final user:
78 # Map LINK_COMPONENTS to actual libnames.
79 function(llvm_map_components_to_libnames out_libs)
80 set( link_components ${ARGN} )
81 if(NOT LLVM_AVAILABLE_LIBS)
82 # Inside LLVM itself available libs are in a global property.
83 get_property(LLVM_AVAILABLE_LIBS GLOBAL PROPERTY LLVM_LIBS)
85 string(TOUPPER "${LLVM_AVAILABLE_LIBS}" capitalized_libs)
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")
96 list(APPEND link_components "interpreter")
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})
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 ${c} idx)
111 if( TARGET LLVM${c}CodeGen )
112 list(APPEND expanded_components "LLVM${c}CodeGen")
114 if( TARGET LLVM${c} )
115 list(APPEND expanded_components "LLVM${c}")
117 message(FATAL_ERROR "Target ${c} is not in the set of libraries.")
120 if( TARGET LLVM${c}AsmPrinter )
121 list(APPEND expanded_components "LLVM${c}AsmPrinter")
123 if( TARGET LLVM${c}AsmParser )
124 list(APPEND expanded_components "LLVM${c}AsmParser")
126 if( TARGET LLVM${c}Desc )
127 list(APPEND expanded_components "LLVM${c}Desc")
129 if( TARGET LLVM${c}Info )
130 list(APPEND expanded_components "LLVM${c}Info")
132 if( TARGET LLVM${c}Disassembler )
133 list(APPEND expanded_components "LLVM${c}Disassembler")
135 elseif( c STREQUAL "native" )
137 elseif( c STREQUAL "nativecodegen" )
138 list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}CodeGen")
139 if( TARGET LLVM${LLVM_NATIVE_ARCH}Desc )
140 list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}Desc")
142 if( TARGET LLVM${LLVM_NATIVE_ARCH}Info )
143 list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}Info")
145 elseif( c STREQUAL "backend" )
146 # same case as in `native'.
147 elseif( c STREQUAL "engine" )
149 elseif( c STREQUAL "all" )
150 list(APPEND expanded_components ${LLVM_AVAILABLE_LIBS})
151 elseif( c STREQUAL "AllTargetsAsmPrinters" )
152 # Link all the asm printers from all the targets
153 foreach(t ${LLVM_TARGETS_TO_BUILD})
154 if( TARGET LLVM${t}AsmPrinter )
155 list(APPEND expanded_components "LLVM${t}AsmPrinter")
158 elseif( c STREQUAL "AllTargetsAsmParsers" )
159 # Link all the asm parsers from all the targets
160 foreach(t ${LLVM_TARGETS_TO_BUILD})
161 if( TARGET LLVM${t}AsmParser )
162 list(APPEND expanded_components "LLVM${t}AsmParser")
165 elseif( c STREQUAL "AllTargetsDescs" )
166 # Link all the descs from all the targets
167 foreach(t ${LLVM_TARGETS_TO_BUILD})
168 if( TARGET LLVM${t}Desc )
169 list(APPEND expanded_components "LLVM${t}Desc")
172 elseif( c STREQUAL "AllTargetsDisassemblers" )
173 # Link all the disassemblers from all the targets
174 foreach(t ${LLVM_TARGETS_TO_BUILD})
175 if( TARGET LLVM${t}Disassembler )
176 list(APPEND expanded_components "LLVM${t}Disassembler")
179 elseif( c STREQUAL "AllTargetsInfos" )
180 # Link all the infos from all the targets
181 foreach(t ${LLVM_TARGETS_TO_BUILD})
182 if( TARGET LLVM${t}Info )
183 list(APPEND expanded_components "LLVM${t}Info")
186 else( NOT idx LESS 0 )
187 # Canonize the component name:
188 string(TOUPPER "${c}" capitalized)
189 list(FIND capitalized_libs LLVM${capitalized} lib_idx)
191 # The component is unknown. Maybe is an omitted target?
192 is_llvm_target_library(${c} iltl_result)
193 if( NOT iltl_result )
194 message(FATAL_ERROR "Library `${c}' not found in list of llvm libraries.")
196 else( lib_idx LESS 0 )
197 list(GET LLVM_AVAILABLE_LIBS ${lib_idx} canonical_lib)
198 list(APPEND expanded_components ${canonical_lib})
199 endif( lib_idx LESS 0 )
200 endif( NOT idx LESS 0 )
203 set(${out_libs} ${expanded_components} PARENT_SCOPE)
206 # Perform a post-order traversal of the dependency graph.
207 # This duplicates the algorithm used by llvm-config, originally
208 # in tools/llvm-config/llvm-config.cpp, function ComputeLibsForComponents.
209 function(expand_topologically name required_libs visited_libs)
210 list(FIND visited_libs ${name} found)
212 list(APPEND visited_libs ${name})
213 set(visited_libs ${visited_libs} PARENT_SCOPE)
215 get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${name})
216 foreach( lib_dep ${lib_deps} )
217 expand_topologically(${lib_dep} "${required_libs}" "${visited_libs}")
218 set(required_libs ${required_libs} PARENT_SCOPE)
219 set(visited_libs ${visited_libs} PARENT_SCOPE)
222 list(APPEND required_libs ${name})
223 set(required_libs ${required_libs} PARENT_SCOPE)
227 # Expand dependencies while topologically sorting the list of libraries:
228 function(llvm_expand_dependencies out_libs)
229 set(expanded_components ${ARGN})
233 foreach( lib ${expanded_components} )
234 expand_topologically(${lib} "${required_libs}" "${visited_libs}")
237 list(REVERSE required_libs)
238 set(${out_libs} ${required_libs} PARENT_SCOPE)
241 function(explicit_map_components_to_libraries out_libs)
242 llvm_map_components_to_libnames(link_libs ${ARGN})
243 llvm_expand_dependencies(expanded_components ${link_libs})
244 # Return just the libraries included in this build:
246 foreach(c ${expanded_components})
248 set(result ${result} ${c})
251 set(${out_libs} ${result} PARENT_SCOPE)
252 endfunction(explicit_map_components_to_libraries)