diff --git a/libunwind/src/UnwindCursor.hpp b/libunwind/src/UnwindCursor.hpp
index e7fb70c..32d71c2 100644
--- a/libunwind/src/UnwindCursor.hpp
+++ b/libunwind/src/UnwindCursor.hpp
@@ -1848,6 +1848,12 @@
   pc &= (pint_t)~0x1;
 #endif
 
+  // Exit early if at the top of the stack.
+  if (pc == 0) {
+    _unwindInfoMissing = true;
+    return;
+  }
+
   // If the last line of a function is a "throw" the compiler sometimes
   // emits no instructions after the call to __cxa_throw.  This means
   // the return address is actually the start of the next function.