PPC: [interpreter] Fix return address when entering exception handler.

src/ppc/builtins-ppc.cc

Index: src/ppc/builtins-ppc.cc
diff --git a/src/ppc/builtins-ppc.cc b/src/ppc/builtins-ppc.cc
index 3a433f11a17685484188537a15906fdfad153362..10714265f16bb8fee5afef6133bde3917dcd62c3 100644
--- a/src/ppc/builtins-ppc.cc
+++ b/src/ppc/builtins-ppc.cc
@@ -1136,6 +1136,14 @@ void Builtins::Generate_InterpreterNotifyLazyDeoptimized(MacroAssembler* masm) {
 
 
 void Builtins::Generate_InterpreterEnterExceptionHandler(MacroAssembler* masm) {
+  // Set the address of the interpreter entry trampoline as a return address.
+  // This simulates the initial call to bytecode handlers in interpreter entry
+  // trampoline. The return will never actually be taken, but our stack walker
+  // uses this address to determine whether a frame is interpreted.
+  __ mov(r0,
+         Operand(masm->isolate()->builtins()->InterpreterEntryTrampoline()));
+  __ mtlr(r0);
+
   Generate_EnterBytecodeDispatch(masm);
 }