diff --git a/cmake/tools.cmake b/cmake/tools.cmake
index ebbb97cad16..3a17b47ae15 100644
--- a/cmake/tools.cmake
+++ b/cmake/tools.cmake
@@ -27,8 +27,13 @@ option (LINKER_NAME "Linker name or full path")
 find_program (LLD_PATH NAMES "ld.lld" "lld" "lld-${COMPILER_VERSION_MAJOR}")
 find_program (GOLD_PATH NAMES "ld.gold" "gold")
 
+# We prefer LLD linker over Gold or BFD.
+
 if (NOT LINKER_NAME)
     if (LLD_PATH)
+        # GCC driver requires one of supported linker names like "lld".
+        # Clang driver simply allows full linker path.
+
         if (COMPILER_GCC)
             get_filename_component(LLD_BASE_NAME ${LLD_PATH} NAME)
             if (LLD_BASE_NAME STREQUAL ld.lld)