Object/RelocVisitor: Add minimal support, R_PPC64_ADDR32, for ppc64.

It fixes llvm-dwarfdump for ppc64-elf.

llvm-svn: 173566

llvm/include/llvm/Object/RelocVisitor.h

@@ -76,6 +76,14 @@ public:
         HasError = true;
         return RelocToApply();
       }
+    } else if (FileFormat == "ELF64-ppc64") {
+      switch (RelocType) {
+      case llvm::ELF::R_PPC64_ADDR32:
+        return visitELF_PPC64_ADDR32(R, Value);
+      default:
+        HasError = true;
+        return RelocToApply();
+      }
     }
     HasError = true;
     return RelocToApply();
@@ -140,6 +148,14 @@ private:
     int32_t Res = (Value + Addend) & 0xFFFFFFFF;
     return RelocToApply(Res, 4);
   }
+
+  /// PPC64 ELF
+  RelocToApply visitELF_PPC64_ADDR32(RelocationRef R, uint64_t Value) {
+    int64_t Addend;
+    R.getAdditionalInfo(Addend);
+    uint32_t Res = (Value + Addend) & 0xFFFFFFFF;
+    return RelocToApply(Res, 4);
+  }
 };
 
 }