1 function(get_system_libs return_var)
2 # Returns in `return_var' a list of system libraries used by LLVM.
5 set(system_libs ${system_libs} imagehlp psapi shell32)
6 elseif( CMAKE_HOST_UNIX )
8 set(system_libs ${system_libs} rt)
11 set(system_libs ${system_libs} ${CMAKE_DL_LIBS})
13 if(LLVM_ENABLE_TERMINFO)
15 set(system_libs ${system_libs} ${TERMINFO_LIBS})
18 if( LLVM_ENABLE_THREADS AND HAVE_LIBPTHREAD )
19 set(system_libs ${system_libs} pthread)
21 if ( LLVM_ENABLE_ZLIB AND HAVE_LIBZ )
22 set(system_libs ${system_libs} z)
26 set(${return_var} ${system_libs} PARENT_SCOPE)
27 endfunction(get_system_libs)
30 function(link_system_libs target)
31 get_system_libs(llvm_system_libs)
32 target_link_libraries(${target} ${llvm_system_libs})
33 endfunction(link_system_libs)
36 function(is_llvm_target_library library return_var)
37 # Sets variable `return_var' to ON if `library' corresponds to a
38 # LLVM supported target. To OFF if it doesn't.
39 set(${return_var} OFF PARENT_SCOPE)
40 string(TOUPPER "${library}" capitalized_lib)
41 string(TOUPPER "${LLVM_ALL_TARGETS}" targets)
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(${return_var} ON PARENT_SCOPE)
54 endfunction(is_llvm_target_library)
57 macro(llvm_config executable)
58 explicit_llvm_config(${executable} ${ARGN})
62 function(explicit_llvm_config executable)
63 set( link_components ${ARGN} )
65 # Check for out-of-tree builds.
66 if(PROJECT_NAME STREQUAL "LLVM")
67 llvm_map_components_to_libnames(LIBRARIES ${link_components})
69 explicit_map_components_to_libraries(LIBRARIES ${link_components})
72 target_link_libraries(${executable} ${LIBRARIES})
73 endfunction(explicit_llvm_config)
76 # This is a variant intended for the final user:
77 function(llvm_map_components_to_libraries OUT_VAR)
78 explicit_map_components_to_libraries(result ${ARGN})
79 get_system_libs(sys_result)
80 set( ${OUT_VAR} ${result} ${sys_result} PARENT_SCOPE )
81 endfunction(llvm_map_components_to_libraries)
83 # Map LINK_COMPONENTS to actual libnames.
84 function(llvm_map_components_to_libnames out_libs)
85 set( link_components ${ARGN} )
86 get_property(llvm_libs GLOBAL PROPERTY LLVM_LIBS)
87 string(TOUPPER "${llvm_libs}" capitalized_libs)
89 # Expand some keywords:
90 list(FIND LLVM_TARGETS_TO_BUILD "${LLVM_NATIVE_ARCH}" have_native_backend)
91 list(FIND link_components "engine" engine_required)
92 if( NOT engine_required EQUAL -1 )
93 list(FIND LLVM_TARGETS_WITH_JIT "${LLVM_NATIVE_ARCH}" have_jit)
94 if( NOT have_native_backend EQUAL -1 AND NOT have_jit EQUAL -1 )
95 list(APPEND link_components "jit")
96 list(APPEND link_components "native")
98 list(APPEND link_components "interpreter")
101 list(FIND link_components "native" native_required)
102 if( NOT native_required EQUAL -1 )
103 if( NOT have_native_backend EQUAL -1 )
104 list(APPEND link_components ${LLVM_NATIVE_ARCH})
108 # Translate symbolic component names to real libraries:
109 foreach(c ${link_components})
110 # add codegen, asmprinter, asmparser, disassembler
111 list(FIND LLVM_TARGETS_TO_BUILD ${c} idx)
113 list(FIND llvm_libs "LLVM${c}CodeGen" idx)
115 list(APPEND expanded_components "LLVM${c}CodeGen")
117 list(FIND llvm_libs "LLVM${c}" idx)
119 list(APPEND expanded_components "LLVM${c}")
121 message(FATAL_ERROR "Target ${c} is not in the set of libraries.")
124 list(FIND llvm_libs "LLVM${c}AsmPrinter" asmidx)
125 if( NOT asmidx LESS 0 )
126 list(APPEND expanded_components "LLVM${c}AsmPrinter")
128 list(FIND llvm_libs "LLVM${c}AsmParser" asmidx)
129 if( NOT asmidx LESS 0 )
130 list(APPEND expanded_components "LLVM${c}AsmParser")
132 list(FIND llvm_libs "LLVM${c}Info" asmidx)
133 if( NOT asmidx LESS 0 )
134 list(APPEND expanded_components "LLVM${c}Info")
136 list(FIND llvm_libs "LLVM${c}Disassembler" asmidx)
137 if( NOT asmidx LESS 0 )
138 list(APPEND expanded_components "LLVM${c}Disassembler")
140 elseif( c STREQUAL "native" )
142 elseif( c STREQUAL "nativecodegen" )
143 list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}CodeGen")
144 elseif( c STREQUAL "backend" )
145 # same case as in `native'.
146 elseif( c STREQUAL "engine" )
148 elseif( c STREQUAL "all" )
149 list(APPEND expanded_components ${llvm_libs})
150 else( NOT idx LESS 0 )
151 # Canonize the component name:
152 string(TOUPPER "${c}" capitalized)
153 list(FIND capitalized_libs LLVM${capitalized} lib_idx)
155 # The component is unknown. Maybe is an omitted target?
156 is_llvm_target_library(${c} iltl_result)
157 if( NOT iltl_result )
158 message(FATAL_ERROR "Library `${c}' not found in list of llvm libraries.")
160 else( lib_idx LESS 0 )
161 list(GET llvm_libs ${lib_idx} canonical_lib)
162 list(APPEND expanded_components ${canonical_lib})
163 endif( lib_idx LESS 0 )
164 endif( NOT idx LESS 0 )
167 set(${out_libs} ${expanded_components} PARENT_SCOPE)
170 # Expand dependencies while topologically sorting the list of libraries:
171 function(llvm_expand_dependencies out_libs)
172 set(expanded_components ${ARGN})
173 list(LENGTH expanded_components lst_size)
176 while( cursor LESS lst_size )
177 list(GET expanded_components ${cursor} lib)
178 get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${lib})
179 list(APPEND expanded_components ${lib_deps})
180 # Remove duplicates at the front:
181 list(REVERSE expanded_components)
182 list(REMOVE_DUPLICATES expanded_components)
183 list(REVERSE expanded_components)
184 list(APPEND processed ${lib})
185 # Find the maximum index that doesn't have to be re-processed:
186 while(NOT "${expanded_components}" MATCHES "^${processed}.*" )
187 list(REMOVE_AT processed -1)
189 list(LENGTH processed cursor)
190 list(LENGTH expanded_components lst_size)
191 endwhile( cursor LESS lst_size )
192 set(${out_libs} ${expanded_components} PARENT_SCOPE)
195 function(explicit_map_components_to_libraries out_libs)
196 llvm_map_components_to_libnames(link_libs ${ARGN})
197 llvm_expand_dependencies(expanded_components ${link_libs})
198 get_property(llvm_libs GLOBAL PROPERTY LLVM_LIBS)
199 # Return just the libraries included in this build:
201 foreach(c ${expanded_components})
202 list(FIND llvm_libs ${c} lib_idx)
203 if( NOT lib_idx LESS 0 )
204 set(result ${result} ${c})
207 set(${out_libs} ${result} PARENT_SCOPE)
208 endfunction(explicit_map_components_to_libraries)