Index: llvm/docs/CommandGuide/llvm-objcopy.rst
===================================================================
--- llvm/docs/CommandGuide/llvm-objcopy.rst
+++ llvm/docs/CommandGuide/llvm-objcopy.rst
@@ -217,6 +217,10 @@
  Remove from the output all local or undefined symbols that are not required by
  relocations. Also remove all debug sections.
 
+.. option:: --update-section <name>=<file>
+
+ Add a section ``<name>`` with contents from the file ``<file>`` to the output. 
+
 .. option:: --version, -V
 
  Display the version of the :program:`llvm-objcopy` executable.