Index: lld/trunk/ELF/LinkerScript.cpp
===================================================================
--- lld/trunk/ELF/LinkerScript.cpp
+++ lld/trunk/ELF/LinkerScript.cpp
@@ -1859,6 +1859,7 @@
                      .Case("PT_GNU_RELRO", PT_GNU_RELRO)
                      .Case("PT_OPENBSD_RANDOMIZE", PT_OPENBSD_RANDOMIZE)
                      .Case("PT_OPENBSD_WXNEEDED", PT_OPENBSD_WXNEEDED)
+                     .Case("PT_OPENBSD_BOOTDATA", PT_OPENBSD_BOOTDATA)
                      .Default(-1);
 
   if (Ret == (unsigned)-1) {
Index: lld/trunk/test/ELF/linkerscript/openbsd-bootdata.s
===================================================================
--- lld/trunk/test/ELF/linkerscript/openbsd-bootdata.s
+++ lld/trunk/test/ELF/linkerscript/openbsd-bootdata.s
@@ -0,0 +1,7 @@
+# RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %s -o %t.o
+# RUN: echo "PHDRS { boot PT_OPENBSD_BOOTDATA; }" > %t.script
+# RUN: ld.lld --script %t.script %t.o -o %t
+# RUN: llvm-readobj --program-headers -s %t | FileCheck %s
+
+# CHECK:      ProgramHeader {
+# CHECK:        Type: PT_OPENBSD_BOOTDATA (0x65A41BE6)