[CMake] Accept ENTITLEMENTS in llvm_add_library()

[sgraenitz]

Summary

We added support for code signing entitlements in add_llvm_executable() with D54443. In the future it would be useful to have this functionality available also for libraries.

[sgraenitz]

Tested this with LLDB library target.

[bogner]

LGTM

cmake/modules/AddLLVM.cmake

 #   NO_INSTALL_RPATH
 #     Suppress default RPATH settings in shared libraries.
 #   PLUGIN_TOOL
 #     The tool (i.e. cmake target) that this plugin will link against
 #   )
 function(llvm_add_library name)
   cmake_parse_arguments(ARG
     "MODULE;SHARED;STATIC;OBJECT;DISABLE_LLVM_LINK_LLVM_DYLIB;SONAME;NO_INSTALL_RPATH"
-    "OUTPUT_NAME;PLUGIN_TOOL"
+    "OUTPUT_NAME;PLUGIN_TOOL;ENTITLEMENTS"
     "ADDITIONAL_HEADERS;DEPENDS;LINK_COMPONENTS;LINK_LIBS;OBJLIBS"
     ${ARGN})
   list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS})
   if(ARG_ADDITIONAL_HEADERS)
     # Pass through ADDITIONAL_HEADERS.
     set(ARG_ADDITIONAL_HEADERS ADDITIONAL_HEADERS ${ARG_ADDITIONAL_HEADERS})
   endif()
   if(ARG_OBJLIBS)
if(LLVM_COMMON_DEPENDS)
     # CMake issue 14747 --  add_dependencies() might be ignored to objlib's user.
     foreach(objlib ${objlibs})
       add_dependencies(${objlib} ${LLVM_COMMON_DEPENDS})
     endforeach()
   endif()
 
   if(ARG_SHARED OR ARG_MODULE)
     llvm_externalize_debuginfo(${name})
-    llvm_codesign(${name})
+    llvm_codesign(${name} ENTITLEMENTS ${ARG_ENTITLEMENTS})
   endif()
 endfunction()
 
 function(add_llvm_install_targets target)
   cmake_parse_arguments(ARG "" "COMPONENT;PREFIX" "DEPENDS" ${ARGN})
   if(ARG_COMPONENT)
     set(component_option -DCMAKE_INSTALL_COMPONENT="${ARG_COMPONENT}")
   endif()