X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=cmake%2Fmodules%2FAddLLVM.cmake;h=bed81b28426ef7d37c9bc27d516493347736f0b9;hp=fcf023becf50f34edb46e0121a86fbcbeec9285a;hb=cce559871a4956cab32a6048fa481cb4bd062a5f;hpb=a37234f8c4f059c37971b037729626432c0b2800

diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
index fcf023becf5..bed81b28426 100644
--- a/cmake/modules/AddLLVM.cmake
+++ b/cmake/modules/AddLLVM.cmake
@@ -1,5 +1,6 @@
 include(LLVMProcessSources)
 include(LLVM-Config)
+include(DetermineGCCCompatible)
 
 function(llvm_update_compile_flags name)
   get_property(sources TARGET ${name} PROPERTY SOURCES)
@@ -21,15 +22,13 @@ function(llvm_update_compile_flags name)
       list(APPEND LLVM_COMPILE_DEFINITIONS _HAS_EXCEPTIONS=0)
       list(APPEND LLVM_COMPILE_FLAGS "/EHs-c-")
     endif()
-    if (CLANG_CL)
-      # FIXME: Remove this once clang-cl supports SEH
-      list(APPEND LLVM_COMPILE_DEFINITIONS "GTEST_HAS_SEH=0")
-    endif()
   endif()
 
   # LLVM_REQUIRES_RTTI is an internal flag that individual
   # targets can use to force RTTI
+  set(LLVM_CONFIG_HAS_RTTI YES CACHE INTERNAL "")
   if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI))
+    set(LLVM_CONFIG_HAS_RTTI NO CACHE INTERNAL "")
     list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_RTTI=0)
     if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
       list(APPEND LLVM_COMPILE_FLAGS "-fno-rtti")
@@ -193,34 +192,43 @@ endfunction(add_link_opts)
 # Set each output directory according to ${CMAKE_CONFIGURATION_TYPES}.
 # Note: Don't set variables CMAKE_*_OUTPUT_DIRECTORY any more,
 # or a certain builder, for eaxample, msbuild.exe, would be confused.
-function(set_output_directory target bindir libdir)
-  # Do nothing if *_OUTPUT_INTDIR is empty.
-  if("${bindir}" STREQUAL "")
-    return()
-  endif()
+function(set_output_directory target)
+  cmake_parse_arguments(ARG "" "BINARY_DIR;LIBRARY_DIR" "" ${ARGN})
 
-  # moddir -- corresponding to LIBRARY_OUTPUT_DIRECTORY.
+  # module_dir -- corresponding to LIBRARY_OUTPUT_DIRECTORY.
   # It affects output of add_library(MODULE).
   if(WIN32 OR CYGWIN)
     # DLL platform
-    set(moddir ${bindir})
+    set(module_dir ${ARG_BINARY_DIR})
   else()
-    set(moddir ${libdir})
+    set(module_dir ${ARG_LIBRARY_DIR})
   endif()
   if(NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".")
     foreach(build_mode ${CMAKE_CONFIGURATION_TYPES})
       string(TOUPPER "${build_mode}" CONFIG_SUFFIX)
-      string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi ${bindir})
-      string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li ${libdir})
-      string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} mi ${moddir})
-      set_target_properties(${target} PROPERTIES "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${bi})
-      set_target_properties(${target} PROPERTIES "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
-      set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${mi})
+      if(ARG_BINARY_DIR)
+        string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi ${ARG_BINARY_DIR})
+        set_target_properties(${target} PROPERTIES "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${bi})
+      endif()
+      if(ARG_LIBRARY_DIR)
+        string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li ${ARG_LIBRARY_DIR})
+        set_target_properties(${target} PROPERTIES "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
+      endif()
+      if(module_dir)
+        string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} mi ${module_dir})
+        set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${mi})
+      endif()
     endforeach()
   else()
-    set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${bindir})
-    set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${libdir})
-    set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${moddir})
+    if(ARG_BINARY_DIR)
+      set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${ARG_BINARY_DIR})
+    endif()
+    if(ARG_LIBRARY_DIR)
+      set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${ARG_LIBRARY_DIR})
+    endif()
+    if(module_dir)
+      set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${module_dir})
+    endif()
   endif()
 endfunction()
 
@@ -316,10 +324,12 @@ endfunction(set_windows_version_resource_properties)
 #     Same semantics as target_link_libraries().
 #   ADDITIONAL_HEADERS
 #     May specify header files for IDE generators.
+#   SONAME
+#     Should set SONAME link flags and create symlinks
 #   )
 function(llvm_add_library name)
   cmake_parse_arguments(ARG
-    "MODULE;SHARED;STATIC;DISABLE_LLVM_LINK_LLVM_DYLIB"
+    "MODULE;SHARED;STATIC;DISABLE_LLVM_LINK_LLVM_DYLIB;SONAME"
     "OUTPUT_NAME"
     "ADDITIONAL_HEADERS;DEPENDS;LINK_COMPONENTS;LINK_LIBS;OBJLIBS"
     ${ARGN})
@@ -398,7 +408,7 @@ function(llvm_add_library name)
     set(windows_resource_file ${windows_resource_file} PARENT_SCOPE)
   endif()
 
-  set_output_directory(${name} ${LLVM_RUNTIME_OUTPUT_INTDIR} ${LLVM_LIBRARY_OUTPUT_INTDIR})
+  set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
   # $<TARGET_OBJECTS> doesn't require compile flags.
   if(NOT obj_name)
     llvm_update_compile_flags(${name})
@@ -424,11 +434,6 @@ function(llvm_add_library name)
         PREFIX ""
         )
     endif()
-
-    set_target_properties(${name}
-      PROPERTIES
-      SOVERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}
-      VERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX})
   endif()
 
   if(ARG_MODULE OR ARG_SHARED)
@@ -443,6 +448,24 @@ function(llvm_add_library name)
     endif()
   endif()
 
+  if(ARG_SHARED AND UNIX)
+    if(NOT APPLE AND ARG_SONAME)
+      get_target_property(output_name ${name} OUTPUT_NAME)
+      if(${output_name} STREQUAL "output_name-NOTFOUND")
+        set(output_name ${name})
+      endif()
+      set(library_name ${output_name}-${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}${LLVM_VERSION_SUFFIX})
+      set(api_name ${output_name}-${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX})
+      set_target_properties(${name} PROPERTIES OUTPUT_NAME ${library_name})
+      llvm_install_library_symlink(${api_name} ${library_name} SHARED
+        COMPONENT ${name}
+        ALWAYS_GENERATE)
+      llvm_install_library_symlink(${output_name} ${library_name} SHARED
+        COMPONENT ${name}
+        ALWAYS_GENERATE)
+    endif()
+  endif()
+
   # Add the explicit dependency information for this library.
   #
   # It would be nice to verify that we have the dependencies for this library
@@ -489,6 +512,10 @@ function(llvm_add_library name)
       add_dependencies(${objlib} ${LLVM_COMMON_DEPENDS})
     endforeach()
   endif()
+
+  if(ARG_SHARED OR ARG_MODULE)
+    llvm_externalize_debuginfo(${name})
+  endif()
 endfunction()
 
 macro(add_llvm_library name)
@@ -514,9 +541,11 @@ macro(add_llvm_library name)
     set_target_properties( ${name} PROPERTIES EXCLUDE_FROM_ALL ON)
   elseif(NOT _is_gtest)
     if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "LTO")
+      set(install_dir lib${LLVM_LIBDIR_SUFFIX})
       if(ARG_SHARED OR BUILD_SHARED_LIBS)
-        if(WIN32 OR CYGWIN)
+        if(WIN32 OR CYGWIN OR MINGW)
           set(install_type RUNTIME)
+          set(install_dir bin)
         else()
           set(install_type LIBRARY)
         endif()
@@ -526,7 +555,7 @@ macro(add_llvm_library name)
 
       install(TARGETS ${name}
             EXPORT LLVMExports
-            ${install_type} DESTINATION lib${LLVM_LIBDIR_SUFFIX}
+            ${install_type} DESTINATION ${install_dir}
             COMPONENT ${name})
 
       if (NOT CMAKE_CONFIGURATION_TYPES)
@@ -572,7 +601,7 @@ endmacro(add_llvm_loadable_module name)
 
 
 macro(add_llvm_executable name)
-  cmake_parse_arguments(ARG "DISABLE_LLVM_LINK_LLVM_DYLIB" "" "" ${ARGN})
+  cmake_parse_arguments(ARG "DISABLE_LLVM_LINK_LLVM_DYLIB;IGNORE_EXTERNALIZE_DEBUGINFO" "" "" ${ARGN})
   llvm_process_sources( ALL_FILES ${ARG_UNPARSED_ARGUMENTS} )
 
   # Generate objlib
@@ -593,7 +622,7 @@ macro(add_llvm_executable name)
   if(XCODE)
     # Note: the dummy.cpp source file provides no definitions. However,
     # it forces Xcode to properly link the static library.
-    list(APPEND ALL_FILES "${LLVM_SOURCE_DIR}/cmake/dummy.cpp")
+    list(APPEND ALL_FILES "${LLVM_MAIN_SRC_DIR}/cmake/dummy.cpp")
   endif()
 
   if( EXCLUDE_FROM_ALL )
@@ -627,22 +656,32 @@ macro(add_llvm_executable name)
   endif()
 
   set(EXCLUDE_FROM_ALL OFF)
-  set_output_directory(${name} ${LLVM_RUNTIME_OUTPUT_INTDIR} ${LLVM_LIBRARY_OUTPUT_INTDIR})
+  set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
   llvm_config( ${name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} )
   if( LLVM_COMMON_DEPENDS )
     add_dependencies( ${name} ${LLVM_COMMON_DEPENDS} )
   endif( LLVM_COMMON_DEPENDS )
+
+  if(NOT ARG_IGNORE_EXTERNALIZE_DEBUGINFO)
+    llvm_externalize_debuginfo(${name})
+  endif()
 endmacro(add_llvm_executable name)
 
 function(export_executable_symbols target)
   if (NOT MSVC) # MSVC's linker doesn't support exporting all symbols.
     set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
+    if (APPLE)
+      set_property(TARGET ${target} APPEND_STRING PROPERTY
+        LINK_FLAGS " -rdynamic")
+    endif()
   endif()
 endfunction()
 
 if(NOT LLVM_TOOLCHAIN_TOOLS)
   set (LLVM_TOOLCHAIN_TOOLS
     llvm-ar
+    llvm-ranlib
+    llvm-lib
     llvm-objdump
     )
 endif()
@@ -722,12 +761,10 @@ function(canonicalize_tool_name name output)
   set(${output} "${nameUPPER}" PARENT_SCOPE)
 endfunction(canonicalize_tool_name)
 
-# Add external project that may want to be built as part of llvm such as Clang,
-# lld, and Polly. This adds two options. One for the source directory of the
-# project, which defaults to ${CMAKE_CURRENT_SOURCE_DIR}/${name}. Another to
-# enable or disable building it with everything else.
-# Additional parameter can be specified as the name of directory.
-macro(add_llvm_external_project name)
+# Custom add_subdirectory wrapper
+# Takes in a project name (i.e. LLVM), the the subdirectory name, and an
+# and an optional path if it differs from the name.
+macro(add_llvm_subdirectory project type name)
   set(add_llvm_external_dir "${ARGN}")
   if("${add_llvm_external_dir}" STREQUAL "")
     set(add_llvm_external_dir ${name})
@@ -735,39 +772,48 @@ macro(add_llvm_external_project name)
   canonicalize_tool_name(${name} nameUPPER)
   if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}/CMakeLists.txt)
     # Treat it as in-tree subproject.
-    option(LLVM_TOOL_${nameUPPER}_BUILD
-           "Whether to build ${name} as part of LLVM" On)
-    mark_as_advanced(LLVM_TOOL_${name}_BUILD)
-    if(LLVM_TOOL_${nameUPPER}_BUILD)
+    option(${project}_${type}_${nameUPPER}_BUILD
+           "Whether to build ${name} as part of ${project}" On)
+    mark_as_advanced(${project}_${type}_${name}_BUILD)
+    if(${project}_${type}_${nameUPPER}_BUILD)
       add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir} ${add_llvm_external_dir})
       # Don't process it in add_llvm_implicit_projects().
-      set(LLVM_TOOL_${nameUPPER}_BUILD OFF)
+      set(${project}_${type}_${nameUPPER}_BUILD OFF)
     endif()
   else()
     set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR
       "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}"
       CACHE PATH "Path to ${name} source directory")
-    set(LLVM_TOOL_${nameUPPER}_BUILD_DEFAULT ON)
+    set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT ON)
     if(NOT LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR OR NOT EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR})
-      set(LLVM_TOOL_${nameUPPER}_BUILD_DEFAULT OFF)
+      set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT OFF)
     endif()
     if("${LLVM_EXTERNAL_${nameUPPER}_BUILD}" STREQUAL "OFF")
-      set(LLVM_TOOL_${nameUPPER}_BUILD_DEFAULT OFF)
+      set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT OFF)
     endif()
-    option(LLVM_TOOL_${nameUPPER}_BUILD
+    option(${project}_${type}_${nameUPPER}_BUILD
       "Whether to build ${name} as part of LLVM"
-      ${LLVM_TOOL_${nameUPPER}_BUILD_DEFAULT})
-    if (LLVM_TOOL_${nameUPPER}_BUILD)
+      ${${project}_${type}_${nameUPPER}_BUILD_DEFAULT})
+    if (${project}_${type}_${nameUPPER}_BUILD)
       if(EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR})
         add_subdirectory(${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} ${add_llvm_external_dir})
       elseif(NOT "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}" STREQUAL "")
         message(WARNING "Nonexistent directory for ${name}: ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}")
       endif()
       # FIXME: It'd be redundant.
-      set(LLVM_TOOL_${nameUPPER}_BUILD Off)
+      set(${project}_${type}_${nameUPPER}_BUILD Off)
     endif()
   endif()
-endmacro(add_llvm_external_project)
+endmacro()
+
+# Add external project that may want to be built as part of llvm such as Clang,
+# lld, and Polly. This adds two options. One for the source directory of the
+# project, which defaults to ${CMAKE_CURRENT_SOURCE_DIR}/${name}. Another to
+# enable or disable building it with everything else.
+# Additional parameter can be specified as the name of directory.
+macro(add_llvm_external_project name)
+  add_llvm_subdirectory(LLVM TOOL ${name} ${ARGN})
+endmacro()
 
 macro(add_llvm_tool_subdirectory name)
   add_llvm_external_project(${name})
@@ -783,16 +829,20 @@ function(get_project_name_from_src_var var output)
   endif()
 endfunction()
 
-function(create_llvm_tool_options)
+function(create_subdirectory_options project type)
   file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
   foreach(dir ${sub-dirs})
     if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
       canonicalize_tool_name(${dir} name)
-      option(LLVM_TOOL_${name}_BUILD
-           "Whether to build ${name} as part of LLVM" On)
-      mark_as_advanced(LLVM_TOOL_${name}_BUILD)
+      option(${project}_${type}_${name}_BUILD
+           "Whether to build ${name} as part of ${project}" On)
+      mark_as_advanced(${project}_${type}_${name}_BUILD)
     endif()
   endforeach()
+endfunction(create_subdirectory_options)
+
+function(create_llvm_tool_options)
+  create_subdirectory_options(LLVM TOOL)
 endfunction(create_llvm_tool_options)
 
 function(add_llvm_implicit_projects)
@@ -830,9 +880,9 @@ function(add_unittest test_suite test_name)
 
   set(LLVM_REQUIRES_RTTI OFF)
 
-  add_llvm_executable(${test_name} ${ARGN})
+  add_llvm_executable(${test_name} IGNORE_EXTERNALIZE_DEBUGINFO ${ARGN})
   set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
-  set_output_directory(${test_name} ${outdir} ${outdir})
+  set_output_directory(${test_name} BINARY_DIR ${outdir} LIBRARY_DIR ${outdir})
   target_link_libraries(${test_name}
     gtest
     gtest_main
@@ -1020,3 +1070,132 @@ function(add_lit_testsuites project directory)
     endforeach()
   endif()
 endfunction()
+
+function(llvm_install_library_symlink name dest type)
+  cmake_parse_arguments(ARG "ALWAYS_GENERATE" "COMPONENT" "" ${ARGN})
+  foreach(path ${CMAKE_MODULE_PATH})
+    if(EXISTS ${path}/LLVMInstallSymlink.cmake)
+      set(INSTALL_SYMLINK ${path}/LLVMInstallSymlink.cmake)
+      break()
+    endif()
+  endforeach()
+
+  set(component ${ARG_COMPONENT})
+  if(NOT component)
+    set(component ${name})
+  endif()
+
+  set(full_name ${CMAKE_${type}_LIBRARY_PREFIX}${name}${CMAKE_${type}_LIBRARY_SUFFIX})
+  set(full_dest ${CMAKE_${type}_LIBRARY_PREFIX}${dest}${CMAKE_${type}_LIBRARY_SUFFIX})
+
+  set(output_dir lib${LLVM_LIBDIR_SUFFIX})
+  if(WIN32 AND "${type}" STREQUAL "SHARED")
+    set(output_dir bin)
+  endif()
+
+  install(SCRIPT ${INSTALL_SYMLINK}
+          CODE "install_symlink(${full_name} ${full_dest} ${output_dir})"
+          COMPONENT ${component})
+
+  if (NOT CMAKE_CONFIGURATION_TYPES AND NOT ARG_ALWAYS_GENERATE)
+    add_custom_target(install-${name}
+                      DEPENDS ${name} ${dest} install-${dest}
+                      COMMAND "${CMAKE_COMMAND}"
+                              -DCMAKE_INSTALL_COMPONENT=${name}
+                              -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+  endif()
+endfunction()
+
+function(llvm_install_symlink name dest)
+  cmake_parse_arguments(ARG "ALWAYS_GENERATE" "" "" ${ARGN})
+  foreach(path ${CMAKE_MODULE_PATH})
+    if(EXISTS ${path}/LLVMInstallSymlink.cmake)
+      set(INSTALL_SYMLINK ${path}/LLVMInstallSymlink.cmake)
+      break()
+    endif()
+  endforeach()
+
+  if(ARG_ALWAYS_GENERATE)
+    set(component ${dest})
+  else()
+    set(component ${name})
+  endif()
+
+  set(full_name ${name}${CMAKE_EXECUTABLE_SUFFIX})
+  set(full_dest ${dest}${CMAKE_EXECUTABLE_SUFFIX})
+
+  install(SCRIPT ${INSTALL_SYMLINK}
+          CODE "install_symlink(${full_name} ${full_dest} bin)"
+          COMPONENT ${component})
+
+  if (NOT CMAKE_CONFIGURATION_TYPES AND NOT ARG_ALWAYS_GENERATE)
+    add_custom_target(install-${name}
+                      DEPENDS ${name} ${dest} install-${dest}
+                      COMMAND "${CMAKE_COMMAND}"
+                              -DCMAKE_INSTALL_COMPONENT=${name}
+                              -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+  endif()
+endfunction()
+
+function(add_llvm_tool_symlink name dest)
+  cmake_parse_arguments(ARG "ALWAYS_GENERATE" "" "" ${ARGN})
+  if(UNIX)
+    set(LLVM_LINK_OR_COPY create_symlink)
+    set(dest_binary "${dest}${CMAKE_EXECUTABLE_SUFFIX}")
+  else()
+    set(LLVM_LINK_OR_COPY copy)
+    set(dest_binary "${LLVM_RUNTIME_OUTPUT_INTDIR}/${dest}${CMAKE_EXECUTABLE_SUFFIX}")
+  endif()
+
+  set(output_path "${LLVM_RUNTIME_OUTPUT_INTDIR}/${name}${CMAKE_EXECUTABLE_SUFFIX}")
+
+  if(ARG_ALWAYS_GENERATE)
+    set_property(DIRECTORY APPEND PROPERTY
+      ADDITIONAL_MAKE_CLEAN_FILES ${dest_binary})
+    add_custom_command(TARGET ${dest} POST_BUILD
+      COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}")
+  else()
+    add_custom_command(OUTPUT ${output_path}
+                     COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}"
+                     DEPENDS ${dest})
+    add_custom_target(${name} ALL DEPENDS ${output_path})
+    set_target_properties(${name} PROPERTIES FOLDER Tools)
+
+    # Make sure the parent tool is a toolchain tool, otherwise exclude this tool
+    list(FIND LLVM_TOOLCHAIN_TOOLS ${dest} LLVM_IS_${dest}_TOOLCHAIN_TOOL)
+    if (NOT LLVM_IS_${dest}_TOOLCHAIN_TOOL GREATER -1)
+      set(LLVM_IS_${name}_TOOLCHAIN_TOOL ${LLVM_IS_${dest}_TOOLCHAIN_TOOL})
+    else()
+      list(FIND LLVM_TOOLCHAIN_TOOLS ${name} LLVM_IS_${name}_TOOLCHAIN_TOOL)
+    endif()
+
+    # LLVM_IS_${name}_TOOLCHAIN_TOOL will only be greater than -1 if both this
+    # tool and its parent tool are in LLVM_TOOLCHAIN_TOOLS
+    if (LLVM_IS_${name}_TOOLCHAIN_TOOL GREATER -1 OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
+      if( LLVM_BUILD_TOOLS )
+        llvm_install_symlink(${name} ${dest})
+      endif()
+    endif()
+  endif()
+endfunction()
+
+function(llvm_externalize_debuginfo name)
+  if(NOT LLVM_EXTERNALIZE_DEBUGINFO)
+    return()
+  endif()
+
+  if(APPLE)
+    if(CMAKE_CXX_FLAGS MATCHES "-flto"
+      OR CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE} MATCHES "-flto")
+
+      set(lto_object ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${name}-lto.o)
+      set_property(TARGET ${name} APPEND_STRING PROPERTY
+        LINK_FLAGS " -Wl,-object_path_lto,${lto_object}")
+    endif()
+    add_custom_command(TARGET ${name} POST_BUILD
+      COMMAND xcrun dsymutil $<TARGET_FILE:${name}>
+      COMMAND xcrun strip -Sl $<TARGET_FILE:${name}>)
+  else()
+    message(FATAL_ERROR "LLVM_EXTERNALIZE_DEBUGINFO isn't implemented for non-darwin platforms!")
+  endif()
+endfunction()