forked from OSchip/llvm-project
				
			
		
			
				
	
	
		
			192 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			CMake
		
	
	
	
			
		
		
	
	
			192 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			CMake
		
	
	
	
function(get_system_libs return_var)
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  message(AUTHOR_WARNING "get_system_libs no longer needed")
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  set(${return_var} "" PARENT_SCOPE)
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endfunction()
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function(link_system_libs target)
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  message(AUTHOR_WARNING "link_system_libs no longer needed")
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endfunction()
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function(is_llvm_target_library library return_var)
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  # Sets variable `return_var' to ON if `library' corresponds to a
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  # LLVM supported target. To OFF if it doesn't.
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  set(${return_var} OFF PARENT_SCOPE)
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  string(TOUPPER "${library}" capitalized_lib)
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  string(TOUPPER "${LLVM_ALL_TARGETS}" targets)
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  foreach(t ${targets})
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    if( capitalized_lib STREQUAL t OR
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        capitalized_lib STREQUAL "LLVM${t}" OR
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        capitalized_lib STREQUAL "LLVM${t}CODEGEN" OR
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        capitalized_lib STREQUAL "LLVM${t}ASMPARSER" OR
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        capitalized_lib STREQUAL "LLVM${t}ASMPRINTER" OR
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        capitalized_lib STREQUAL "LLVM${t}DISASSEMBLER" OR
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        capitalized_lib STREQUAL "LLVM${t}INFO" )
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      set(${return_var} ON PARENT_SCOPE)
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      break()
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    endif()
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  endforeach()
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endfunction(is_llvm_target_library)
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macro(llvm_config executable)
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  explicit_llvm_config(${executable} ${ARGN})
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endmacro(llvm_config)
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function(explicit_llvm_config executable)
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  set( link_components ${ARGN} )
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  llvm_map_components_to_libnames(LIBRARIES ${link_components})
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  get_target_property(t ${executable} TYPE)
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  if("x${t}" STREQUAL "xSTATIC_LIBRARY")
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    target_link_libraries(${executable} ${cmake_2_8_12_INTERFACE} ${LIBRARIES})
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  elseif("x${t}" STREQUAL "xSHARED_LIBRARY" OR "x${t}" STREQUAL "xMODULE_LIBRARY")
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    target_link_libraries(${executable} ${cmake_2_8_12_PRIVATE} ${LIBRARIES})
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  else()
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    # Use plain form for legacy user.
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    target_link_libraries(${executable} ${LIBRARIES})
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  endif()
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endfunction(explicit_llvm_config)
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# This is Deprecated
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function(llvm_map_components_to_libraries OUT_VAR)
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  message(AUTHOR_WARNING "Using llvm_map_components_to_libraries() is deprecated. Use llvm_map_components_to_libnames() instead")
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  explicit_map_components_to_libraries(result ${ARGN})
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  set( ${OUT_VAR} ${result} ${sys_result} PARENT_SCOPE )
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endfunction(llvm_map_components_to_libraries)
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# This is a variant intended for the final user:
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# Map LINK_COMPONENTS to actual libnames.
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function(llvm_map_components_to_libnames out_libs)
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  set( link_components ${ARGN} )
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  if(NOT LLVM_AVAILABLE_LIBS)
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    # Inside LLVM itself available libs are in a global property.
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    get_property(LLVM_AVAILABLE_LIBS GLOBAL PROPERTY LLVM_LIBS)
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  endif()
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  string(TOUPPER "${LLVM_AVAILABLE_LIBS}" capitalized_libs)
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  # Expand some keywords:
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  list(FIND LLVM_TARGETS_TO_BUILD "${LLVM_NATIVE_ARCH}" have_native_backend)
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  list(FIND link_components "engine" engine_required)
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  if( NOT engine_required EQUAL -1 )
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    list(FIND LLVM_TARGETS_WITH_JIT "${LLVM_NATIVE_ARCH}" have_jit)
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    if( NOT have_native_backend EQUAL -1 AND NOT have_jit EQUAL -1 )
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      list(APPEND link_components "jit")
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      list(APPEND link_components "native")
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    else()
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      list(APPEND link_components "interpreter")
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    endif()
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  endif()
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  list(FIND link_components "native" native_required)
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  if( NOT native_required EQUAL -1 )
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    if( NOT have_native_backend EQUAL -1 )
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      list(APPEND link_components ${LLVM_NATIVE_ARCH})
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    endif()
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  endif()
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  # Translate symbolic component names to real libraries:
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  foreach(c ${link_components})
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    # add codegen, asmprinter, asmparser, disassembler
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    list(FIND LLVM_TARGETS_TO_BUILD ${c} idx)
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    if( NOT idx LESS 0 )
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      if( TARGET LLVM${c}CodeGen )
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        list(APPEND expanded_components "LLVM${c}CodeGen")
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      else()
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        if( TARGET LLVM${c} )
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          list(APPEND expanded_components "LLVM${c}")
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        else()
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          message(FATAL_ERROR "Target ${c} is not in the set of libraries.")
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        endif()
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      endif()
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      if( TARGET LLVM${c}AsmPrinter )
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        list(APPEND expanded_components "LLVM${c}AsmPrinter")
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      endif()
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      if( TARGET LLVM${c}AsmParser )
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        list(APPEND expanded_components "LLVM${c}AsmParser")
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      endif()
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      if( TARGET LLVM${c}Desc )
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        list(APPEND expanded_components "LLVM${c}Desc")
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      endif()
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      if( TARGET LLVM${c}Info )
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        list(APPEND expanded_components "LLVM${c}Info")
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      endif()
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      if( TARGET LLVM${c}Disassembler )
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        list(APPEND expanded_components "LLVM${c}Disassembler")
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      endif()
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    elseif( c STREQUAL "native" )
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      # already processed
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    elseif( c STREQUAL "nativecodegen" )
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      list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}CodeGen")
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      if( TARGET LLVM${LLVM_NATIVE_ARCH}Desc )
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        list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}Desc")
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      endif()
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      if( TARGET LLVM${LLVM_NATIVE_ARCH}Info )
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        list(APPEND expanded_components "LLVM${LLVM_NATIVE_ARCH}Info")
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      endif()
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    elseif( c STREQUAL "backend" )
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      # same case as in `native'.
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    elseif( c STREQUAL "engine" )
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      # already processed
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    elseif( c STREQUAL "all" )
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      list(APPEND expanded_components ${LLVM_AVAILABLE_LIBS})
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    else( NOT idx LESS 0 )
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      # Canonize the component name:
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      string(TOUPPER "${c}" capitalized)
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      list(FIND capitalized_libs LLVM${capitalized} lib_idx)
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      if( lib_idx LESS 0 )
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        # The component is unknown. Maybe is an omitted target?
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        is_llvm_target_library(${c} iltl_result)
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        if( NOT iltl_result )
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          message(FATAL_ERROR "Library `${c}' not found in list of llvm libraries.")
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        endif()
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      else( lib_idx LESS 0 )
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        list(GET LLVM_AVAILABLE_LIBS ${lib_idx} canonical_lib)
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        list(APPEND expanded_components ${canonical_lib})
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      endif( lib_idx LESS 0 )
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    endif( NOT idx LESS 0 )
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  endforeach(c)
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  set(${out_libs} ${expanded_components} PARENT_SCOPE)
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endfunction()
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# Expand dependencies while topologically sorting the list of libraries:
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function(llvm_expand_dependencies out_libs)
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  set(expanded_components ${ARGN})
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  list(LENGTH expanded_components lst_size)
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  set(cursor 0)
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  set(processed)
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  while( cursor LESS lst_size )
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    list(GET expanded_components ${cursor} lib)
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    get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${lib})
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    list(APPEND expanded_components ${lib_deps})
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    # Remove duplicates at the front:
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    list(REVERSE expanded_components)
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    list(REMOVE_DUPLICATES expanded_components)
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    list(REVERSE expanded_components)
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    list(APPEND processed ${lib})
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    # Find the maximum index that doesn't have to be re-processed:
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    while(NOT "${expanded_components}" MATCHES "^${processed}.*" )
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      list(REMOVE_AT processed -1)
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    endwhile()
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    list(LENGTH processed cursor)
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    list(LENGTH expanded_components lst_size)
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  endwhile( cursor LESS lst_size )
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  set(${out_libs} ${expanded_components} PARENT_SCOPE)
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endfunction()
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function(explicit_map_components_to_libraries out_libs)
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  llvm_map_components_to_libnames(link_libs ${ARGN})
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  llvm_expand_dependencies(expanded_components ${link_libs})
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  # Return just the libraries included in this build:
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  set(result)
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  foreach(c ${expanded_components})
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    if( TARGET ${c} )
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      set(result ${result} ${c})
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    endif()
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  endforeach(c)
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  set(${out_libs} ${result} PARENT_SCOPE)
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endfunction(explicit_map_components_to_libraries)
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