<rdar://problem/14526890>
Fixed a crasher when using memory threads where a thread is sticking around too long and was causing problems when it didn't have a thread plan.
llvm-svn: 187395
diff --git a/lldb/source/Target/ThreadPlan.cpp b/lldb/source/Target/ThreadPlan.cpp
index ba35db1..11240db 100644
--- a/lldb/source/Target/ThreadPlan.cpp
+++ b/lldb/source/Target/ThreadPlan.cpp
@@ -210,3 +210,144 @@
else
return GetPlanRunState();
}
+
+//----------------------------------------------------------------------
+// ThreadPlanNull
+//----------------------------------------------------------------------
+
+ThreadPlanNull::ThreadPlanNull (Thread &thread) :
+ ThreadPlan (ThreadPlan::eKindNull,
+ "Null Thread Plan",
+ thread,
+ eVoteNoOpinion,
+ eVoteNoOpinion)
+{
+}
+
+ThreadPlanNull::~ThreadPlanNull ()
+{
+}
+
+void
+ThreadPlanNull::GetDescription (Stream *s,
+ lldb::DescriptionLevel level)
+{
+ s->PutCString("Null thread plan - thread has been destroyed.");
+}
+
+bool
+ThreadPlanNull::ValidatePlan (Stream *error)
+{
+#ifdef LLDB_CONFIGURATION_DEBUG
+ fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#else
+ Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
+ if (log)
+ log->Error("%s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#endif
+ return true;
+}
+
+bool
+ThreadPlanNull::ShouldStop (Event *event_ptr)
+{
+#ifdef LLDB_CONFIGURATION_DEBUG
+ fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#else
+ Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
+ if (log)
+ log->Error("%s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#endif
+ return true;
+}
+
+bool
+ThreadPlanNull::WillStop ()
+{
+#ifdef LLDB_CONFIGURATION_DEBUG
+ fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#else
+ Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
+ if (log)
+ log->Error("%s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#endif
+ return true;
+}
+
+bool
+ThreadPlanNull::DoPlanExplainsStop (Event *event_ptr)
+{
+#ifdef LLDB_CONFIGURATION_DEBUG
+ fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#else
+ Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
+ if (log)
+ log->Error("%s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#endif
+ return true;
+}
+
+// The null plan is never done.
+bool
+ThreadPlanNull::MischiefManaged ()
+{
+ // The null plan is never done.
+#ifdef LLDB_CONFIGURATION_DEBUG
+ fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#else
+ Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
+ if (log)
+ log->Error("%s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#endif
+ return false;
+}
+
+lldb::StateType
+ThreadPlanNull::GetPlanRunState ()
+{
+ // Not sure what to return here. This is a dead thread.
+#ifdef LLDB_CONFIGURATION_DEBUG
+ fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#else
+ Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
+ if (log)
+ log->Error("%s called on thread that has been destroyed (tid = 0x%llx, ptid = 0x%llx)",
+ __PRETTY_FUNCTION__,
+ m_thread.GetID(),
+ m_thread.GetProtocolID());
+#endif
+ return eStateRunning;
+}