Index: contrib/llvm/tools/lld/ELF/Config.h
===================================================================
--- contrib/llvm/tools/lld/ELF/Config.h
+++ contrib/llvm/tools/lld/ELF/Config.h
@@ -160,6 +160,7 @@
   bool ZNocopyreloc;
   bool ZNodelete;
   bool ZNodlopen;
+  bool ZNodump;
   bool ZNow;
   bool ZOrigin;
   bool ZRelro;
Index: contrib/llvm/tools/lld/ELF/Driver.cpp
===================================================================
--- contrib/llvm/tools/lld/ELF/Driver.cpp
+++ contrib/llvm/tools/lld/ELF/Driver.cpp
@@ -676,6 +676,7 @@
   Config->ZNocopyreloc = hasZOption(Args, "nocopyreloc");
   Config->ZNodelete = hasZOption(Args, "nodelete");
   Config->ZNodlopen = hasZOption(Args, "nodlopen");
+  Config->ZNodump = hasZOption(Args, "nodump");
   Config->ZNow = hasZOption(Args, "now");
   Config->ZOrigin = hasZOption(Args, "origin");
   Config->ZRelro = !hasZOption(Args, "norelro");
Index: contrib/llvm/tools/lld/ELF/SyntheticSections.cpp
===================================================================
--- contrib/llvm/tools/lld/ELF/SyntheticSections.cpp
+++ contrib/llvm/tools/lld/ELF/SyntheticSections.cpp
@@ -1196,6 +1196,8 @@
     DtFlags1 |= DF_1_NODELETE;
   if (Config->ZNodlopen)
     DtFlags1 |= DF_1_NOOPEN;
+  if (Config->ZNodump)
+    DtFlags1 |= DF_1_NODUMP;
   if (Config->ZNow) {
     DtFlags |= DF_BIND_NOW;
     DtFlags1 |= DF_1_NOW;
Index: usr.bin/clang/lld/ld.lld.1
===================================================================
--- usr.bin/clang/lld/ld.lld.1
+++ usr.bin/clang/lld/ld.lld.1
@@ -474,6 +474,14 @@
 .Dv DF_1_NOOPEN
 flag to indcate that the object may not be opened by
 .Xr dlopen 3 .
+.It Cm nodump
+Set the
+.Dv DF_1_NODUMP
+flag to indcate that the object may not be dumped by the runtime linker.
+(The
+.Dv DF_1_NODUMP
+flag is not supported by
+.Fx Ns .)
 .It Cm norelro
 Do not indicate that portions of the object shold be mapped read-only
 after initial relocation processing.