Add support for emitting ARM file attributes.

[oota-llvm.git] / lib / MC / MCSectionCOFF.cpp

diff --git a/lib/MC/MCSectionCOFF.cpp b/lib/MC/MCSectionCOFF.cpp
index 786bc7bc03562ef347f145c215171e90c8a69af8..0909df42227cf4c260d8081716df07fa06c416c2 100644 (file)
--- a/lib/MC/MCSectionCOFF.cpp
+++ b/lib/MC/MCSectionCOFF.cpp
@@ -44,33 +44,37 @@ void MCSectionCOFF::PrintSwitchToSection(const MCAsmInfo &MAI,
     OS << 'w';
   else
     OS << 'r';
-  if (getCharacteristics() & MCSectionCOFF::IMAGE_SCN_MEM_DISCARDABLE)
+  if (getCharacteristics() & COFF::IMAGE_SCN_MEM_DISCARDABLE)
     OS << 'n';
   OS << "\"\n";
   
-  if (getCharacteristics() & MCSectionCOFF::IMAGE_SCN_LNK_COMDAT) {
+  if (getCharacteristics() & COFF::IMAGE_SCN_LNK_COMDAT) {
     switch (Selection) {
-      default:
-        assert (0 && "unsupported COFF selection type");
-        break;
-      case IMAGE_COMDAT_SELECT_NODUPLICATES:
+      case COFF::IMAGE_COMDAT_SELECT_NODUPLICATES:
         OS << "\t.linkonce one_only\n";
         break;
-      case IMAGE_COMDAT_SELECT_ANY:
+      case COFF::IMAGE_COMDAT_SELECT_ANY:
         OS << "\t.linkonce discard\n";
         break;
-      case IMAGE_COMDAT_SELECT_SAME_SIZE:
+      case COFF::IMAGE_COMDAT_SELECT_SAME_SIZE:
         OS << "\t.linkonce same_size\n";
         break;
-      case IMAGE_COMDAT_SELECT_EXACT_MATCH:
+      case COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH:
         OS << "\t.linkonce same_contents\n";
         break;
-      // ".linkonce largest" is not documented as being an option.
-      // It seems odd that a link attribute designed essentially for PE/COFF
-      // wouldn't support all the options (at least as of binutils 2.20)
-    //case IMAGE_COMDAT_SELECT_LARGEST:
+    //NOTE: as of binutils 2.20, there is no way to specifiy select largest
+    //      with the .linkonce directive. For now, we treat it as an invalid
+    //      comdat selection value.
+      case COFF::IMAGE_COMDAT_SELECT_LARGEST:
     //  OS << "\t.linkonce largest\n";
     //  break;
+      default:
+        assert (0 && "unsupported COFF selection type");
+        break;
     }
   }
 }
+
+bool MCSectionCOFF::UseCodeAlign() const {
+  return getKind().isText();
+}