diff options
Diffstat (limited to 'cmake/modules/LLVMConfig.cmake')
| -rwxr-xr-x | cmake/modules/LLVMConfig.cmake | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/cmake/modules/LLVMConfig.cmake b/cmake/modules/LLVMConfig.cmake new file mode 100755 index 0000000..e549708 --- /dev/null +++ b/cmake/modules/LLVMConfig.cmake @@ -0,0 +1,165 @@ +function(get_system_libs return_var) + # Returns in `return_var' a list of system libraries used by LLVM. + if( NOT MSVC ) + if( MINGW ) + set(system_libs ${system_libs} imagehlp psapi) + elseif( CMAKE_HOST_UNIX ) + if( HAVE_LIBDL ) + set(system_libs ${system_libs} ${CMAKE_DL_LIBS}) + endif() + if( LLVM_ENABLE_THREADS AND HAVE_LIBPTHREAD ) + set(system_libs ${system_libs} pthread) + endif() + endif( MINGW ) + endif( NOT MSVC ) + set(${return_var} ${system_libs} PARENT_SCOPE) +endfunction(get_system_libs) + + +function(is_llvm_target_library library return_var) + # Sets variable `return_var' to ON if `library' corresponds to a + # LLVM supported target. To OFF if it doesn't. + set(${return_var} OFF PARENT_SCOPE) + string(TOUPPER "${library}" capitalized_lib) + string(TOUPPER "${LLVM_ALL_TARGETS}" targets) + foreach(t ${targets}) + if( capitalized_lib STREQUAL "LLVM${t}" OR + capitalized_lib STREQUAL "LLVM${t}CODEGEN" OR + capitalized_lib STREQUAL "LLVM${t}ASMPARSER" OR + capitalized_lib STREQUAL "LLVM${t}ASMPRINTER" OR + capitalized_lib STREQUAL "LLVM${t}DISASSEMBLER" OR + capitalized_lib STREQUAL "LLVM${t}INFO" ) + set(${return_var} ON PARENT_SCOPE) + break() + endif() + endforeach() +endfunction(is_llvm_target_library) + + +macro(llvm_config executable) + explicit_llvm_config(${executable} ${ARGN}) +endmacro(llvm_config) + + +function(explicit_llvm_config executable) + set( link_components ${ARGN} ) + + explicit_map_components_to_libraries(LIBRARIES ${link_components}) + target_link_libraries(${executable} ${LIBRARIES}) +endfunction(explicit_llvm_config) + + +# This is a variant intended for the final user: +function(llvm_map_components_to_libraries OUT_VAR) + explicit_map_components_to_libraries(result ${ARGN}) + get_system_libs(sys_result) + set( ${OUT_VAR} ${result} ${sys_result} PARENT_SCOPE ) +endfunction(llvm_map_components_to_libraries) + + +function(explicit_map_components_to_libraries out_libs) + set( link_components ${ARGN} ) + foreach(c ${link_components}) + # add codegen, asmprinter, asmparser, disassembler + list(FIND LLVM_TARGETS_TO_BUILD ${c} idx) + if( NOT idx LESS 0 ) + list(FIND llvm_libs "LLVM${c}CodeGen" idx) + if( NOT idx LESS 0 ) + list(APPEND expanded_components "LLVM${c}CodeGen") + else() + list(FIND llvm_libs "LLVM${c}" idx) + if( NOT idx LESS 0 ) + list(APPEND expanded_components "LLVM${c}") + else() + message(FATAL_ERROR "Target ${c} is not in the set of libraries.") + endif() + endif() + list(FIND llvm_libs "LLVM${c}AsmPrinter" asmidx) + if( NOT asmidx LESS 0 ) + list(APPEND expanded_components "LLVM${c}AsmPrinter") + endif() + list(FIND llvm_libs "LLVM${c}AsmParser" asmidx) + if( NOT asmidx LESS 0 ) + list(APPEND expanded_components "LLVM${c}AsmParser") + endif() + list(FIND llvm_libs "LLVM${c}Info" asmidx) + if( NOT asmidx LESS 0 ) + list(APPEND expanded_components "LLVM${c}Info") + endif() + list(FIND llvm_libs "LLVM${c}Disassembler" asmidx) + if( NOT asmidx LESS 0 ) + list(APPEND expanded_components "LLVM${c}Disassembler") + endif() + elseif( c STREQUAL "native" ) + list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}CodeGen") + elseif( c STREQUAL "nativecodegen" ) + list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}CodeGen") + elseif( c STREQUAL "backend" ) + # same case as in `native'. + elseif( c STREQUAL "engine" ) + # TODO: as we assume we are on X86, this is `jit'. + list(APPEND expanded_components "LLVMJIT") + elseif( c STREQUAL "all" ) + list(APPEND expanded_components ${llvm_libs}) + else( NOT idx LESS 0 ) + list(APPEND expanded_components LLVM${c}) + endif( NOT idx LESS 0 ) + endforeach(c) + # We must match capitalization. + string(TOUPPER "${llvm_libs}" capitalized_libs) + list(REMOVE_DUPLICATES expanded_components) + list(LENGTH expanded_components lst_size) + set(result "") + while( 0 LESS ${lst_size} ) + list(GET expanded_components 0 c) + string(TOUPPER "${c}" capitalized) + list(FIND capitalized_libs ${capitalized} idx) + set(add_it ON) + if( idx LESS 0 ) + # The library is unkown. Maybe is an ommitted target? + is_llvm_target_library(${c} iltl_result) + if( NOT iltl_result ) + message(FATAL_ERROR "Library ${c} not found in list of llvm libraries.") + endif() + set(add_it OFF) + endif( idx LESS 0 ) + list(GET llvm_libs ${idx} canonical_lib) + list(REMOVE_ITEM result ${canonical_lib}) + foreach(c ${MSVC_LIB_DEPS_${canonical_lib}}) + list(REMOVE_ITEM expanded_components ${c}) + endforeach() + if( add_it ) + list(APPEND result ${canonical_lib}) + list(APPEND expanded_components ${MSVC_LIB_DEPS_${canonical_lib}}) + endif() + list(REMOVE_AT expanded_components 0) + list(LENGTH expanded_components lst_size) + endwhile( 0 LESS ${lst_size} ) + set(${out_libs} ${result} PARENT_SCOPE) +endfunction(explicit_map_components_to_libraries) + + +# The library dependency data is contained in the file +# LLVMLibDeps.cmake on this directory. It is automatically generated +# by tools/llvm-config/CMakeLists.txt when the build comprises all the +# targets and we are on a environment Posix enough to build the +# llvm-config script. This, in practice, just excludes MSVC. + +# When you remove or rename a library from the build, be sure to +# remove its file from lib/ as well, or the GenLibDeps.pl script will +# include it on its analysis! + +# The format generated by GenLibDeps.pl + +# libLLVMARMAsmPrinter.a: libLLVMMC.a libLLVMSupport.a + +# is translated to: + +# set(MSVC_LIB_DEPS_LLVMARMAsmPrinter LLVMMC LLVMSupport) + +# It is necessary to remove the `lib' prefix and the `.a' suffix. + +# This 'sed' script should do the trick: +# sed -e s'#\.a##g' -e 's#libLLVM#LLVM#g' -e 's#: # #' -e 's#\(.*\)#set(MSVC_LIB_DEPS_\1)#' ~/llvm/tools/llvm-config/LibDeps.txt + +include(LLVMLibDeps) |