Add support for the new LC_NOTE load command.

It describes a region of arbitrary data included in a Mach-O file.
Its initial use is to record extra data in MH_CORE files.

rdar://30001545
rdar://30001731

llvm-svn: 292500
diff --git a/llvm/lib/ObjectYAML/MachOYAML.cpp b/llvm/lib/ObjectYAML/MachOYAML.cpp
index a033a79..f049563 100644
--- a/llvm/lib/ObjectYAML/MachOYAML.cpp
+++ b/llvm/lib/ObjectYAML/MachOYAML.cpp
@@ -558,6 +558,14 @@
   IO.mapRequired("sdk", LoadCommand.sdk);
 }
 
+void MappingTraits<MachO::note_command>::mapping(
+    IO &IO, MachO::note_command &LoadCommand) {
+
+  IO.mapRequired("data_owner", LoadCommand.data_owner);
+  IO.mapRequired("offset", LoadCommand.offset);
+  IO.mapRequired("size", LoadCommand.size);
+}
+
 } // namespace llvm::yaml
 
 } // namespace llvm