diff --git a/scripts/common.mk b/scripts/common.mk
new file mode 100644
index 0000000..103a415
--- /dev/null
+++ b/scripts/common.mk
@@ -0,0 +1,9 @@
+# Makefile script used in various OP-TEE test components
+
+# Since 'clean' make rules rely on 'rmdir', removed directories shall
+# not end with 'current directory' (./ or .) subpath information.
+# This macro remove trailing './' info from input path.
+define strip-trailing-slashes-and-dots
+$(eval _o := $(patsubst %/,%,$(patsubst %/.,%,$(1))))$(if \
+	$(filter-out $(1),$(_o)),$(call strip-trailing-slashes-and-dots,$(_o)),$(_o))
+endef