diff --git a/lld/docs/ELF/linker_script.rst b/lld/docs/ELF/linker_script.rst
new file mode 100644
--- /dev/null
+++ b/lld/docs/ELF/linker_script.rst
@@ -0,0 +1,18 @@
+Linker Script implementation notes and policy
+=============================================
+
+LLD implements a large subset of the GNU ld linker script notation. The LLD
+implementation policy is to implement linker script features as they are
+documented in the ld `manual <https://sourceware.org/binutils/docs/ld/Scripts.html>`_
+We consider it a bug if the lld implementation does not agree with the manual
+and it is not mentioned in the exceptions below.
+
+The ld manual is not a complete specification, and is not sufficient to build
+an implementation. In particular some features are only defined by the
+implementation and have changed over time.
+
+The lld implementation policy for properties of linker scripts that are not
+defined by the documentation is to follow the GNU ld implementation wherever
+possible. We reserve the right to make different implementation choices where
+it is appropriate for LLD. Intentional deviations will be documented in this
+file.
diff --git a/lld/docs/index.rst b/lld/docs/index.rst
--- a/lld/docs/index.rst
+++ b/lld/docs/index.rst
@@ -176,3 +176,4 @@
    missingkeyfunction
    Partitions
    ReleaseNotes
+   ELF/linker_script