Second set of ARM/MC/ELF changes.

Added ARM specific ELF section types.
Added AttributesSection to ARMElfTargetObject
First step in unifying .cpu assembly tag with ELF/.o
llc now asserts on actual ELF emission on -filetype=obj :-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116257 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARMTargetObjectFile.cpp

@@ -36,4 +36,10 @@ void ARMElfTargetObjectFile::Initialize(MCContext &Ctx,
                                  MCSectionELF::SHF_ALLOC,
                                  SectionKind::getDataRel());
   }
+  
+  AttributesSection =
+    getContext().getELFSection(".ARM.attributes",
+                               MCSectionELF::SHT_ARM_ATTRIBUTES,
+                               0,
+                               SectionKind::getMetadata());
 }