[obj2yaml] [yaml2obj] Support for MachO nlist and string table

This commit adds round tripping for MachO symbol data. Symbols are entries in the name list, that contain offsets into the string table which is at the end of the __LINKEDIT segment.

llvm-svn: 271604

1 files changed, 11 insertions, 0 deletions

diff --git a/llvm/lib/ObjectYAML/MachOYAML.cpp b/llvm/lib/ObjectYAML/MachOYAML.cpp
index 6fe137215cf..b4e808552df 100644
--- a/llvm/lib/ObjectYAML/MachOYAML.cpp
+++ b/llvm/lib/ObjectYAML/MachOYAML.cpp
@@ -104,6 +104,8 @@ void MappingTraits<MachOYAML::LinkEditData>::mapping(
   IO.mapOptional("WeakBindOpcodes", LinkEditData.WeakBindOpcodes);
   IO.mapOptional("LazyBindOpcodes", LinkEditData.LazyBindOpcodes);
   IO.mapOptional("ExportTrie", LinkEditData.ExportTrie);
+  IO.mapOptional("NameList", LinkEditData.NameList);
+  IO.mapOptional("StringTable", LinkEditData.StringTable);
 }
 
 void MappingTraits<MachOYAML::RebaseOpcode>::mapping(
@@ -134,6 +136,15 @@ void MappingTraits<MachOYAML::ExportEntry>::mapping(
   IO.mapOptional("Children", ExportEntry.Children);
 }
 
+void MappingTraits<MachOYAML::NListEntry>::mapping(
+    IO &IO, MachOYAML::NListEntry &NListEntry) {
+  IO.mapRequired("n_strx", NListEntry.n_strx);
+  IO.mapRequired("n_type", NListEntry.n_type);
+  IO.mapRequired("n_sect", NListEntry.n_sect);
+  IO.mapRequired("n_desc", NListEntry.n_desc);
+  IO.mapRequired("n_value", NListEntry.n_value);
+}
+
 template <typename StructType>
 void mapLoadCommandData(IO &IO, MachOYAML::LoadCommand &LoadCommand) {}