1 files changed, 35 insertions, 0 deletions
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/step_scripted/Steps.py b/lldb/packages/Python/lldbsuite/test/functionalities/step_scripted/Steps.py
index 1383a03f464..f93559af736 100644
--- a/lldb/packages/Python/lldbsuite/test/functionalities/step_scripted/Steps.py
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/step_scripted/Steps.py
@@ -35,3 +35,38 @@ class StepScripted(StepWithChild):
 
     def queue_child_thread_plan(self):
         return self.thread_plan.QueueThreadPlanForStepScripted("Steps.StepOut")
+
+# This plan does a step-over until a variable changes value.
+class StepUntil(StepWithChild):
+    def __init__(self, thread_plan, dict):
+        self.frame = thread_plan.GetThread().frames[0]
+        self.target = thread_plan.GetThread().GetProcess().GetTarget()
+        self.value = self.frame.FindVariable("foo")
+        StepWithChild.__init__(self, thread_plan)
+
+    def queue_child_thread_plan(self):
+        le = self.frame.GetLineEntry()
+        start_addr = le.GetStartAddress() 
+        start = start_addr.GetLoadAddress(self.target)
+        end = le.GetEndAddress().GetLoadAddress(self.target)
+        print("Stepping from 0x%x to 0x%x (0x%x)"%(start, end, end - start))
+        return self.thread_plan.QueueThreadPlanForStepOverRange(start_addr,
+                                                                end - start)
+
+    def should_stop(self, event):
+        if not self.child_thread_plan.IsPlanComplete():
+            return False
+
+        # If we've stepped out of this frame, stop.
+        if not self.frame.IsValid():
+            return True
+
+        if not self.value.IsValid():
+            return True
+
+        print("Got next value: %d"%(self.value.GetValueAsUnsigned()))
+        if not self.value.GetValueDidChange():
+            self.child_thread_plan = self.queue_child_thread_plan()
+            return False
+        else:
+            return True