add support for weak linkage


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32222 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMAsmPrinter.cpp b/lib/Target/ARM/ARMAsmPrinter.cpp
index 51a0f88..ba5cdb1 100644
--- a/lib/Target/ARM/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/ARMAsmPrinter.cpp
@@ -128,7 +128,7 @@
     break;
   case Function::WeakLinkage:
   case Function::LinkOnceLinkage:
-    assert(0 && "Not implemented");
+    O << "\t.weak\t" << CurrentFnName << "\n";
     break;
   }
   EmitAlignment(2, F);