Index: ELF/Writer.cpp
===================================================================
--- ELF/Writer.cpp
+++ ELF/Writer.cpp
@@ -201,7 +201,8 @@
     }
 
     bool CBP = canBePreempted(Body, NeedsGot);
-    if (!CBP && (!Config->Shared || Target->isRelRelative(Type)))
+    if (!CBP && (!Config->Shared || Target->isRelRelative(Type) ||
+                 (Body && Body->isWeak() && Body->isUndefined())))
       continue;
     if (CBP)
       Body->setUsedInDynamicReloc();
Index: test/elf2/ppc64-weak-undef-call-shared.s
===================================================================
--- /dev/null
+++ test/elf2/ppc64-weak-undef-call-shared.s
@@ -0,0 +1,11 @@
+# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o
+# RUN: ld.lld2 -shared %t.o -o %t.so
+# RUN: llvm-readobj -t -r -dyn-symbols %t.so | FileCheck %s
+# REQUIRES: ppc
+
+.section        ".toc","aw"
+.quad weakfunc
+// CHECK-NOT: R_PPC64_RELATIVE
+
+.weak weakfunc
+