Adding eStopReasonThreadExiting and fixing the handling of this state on Linux.

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@170800 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/lldb/lldb-enumerations.h b/include/lldb/lldb-enumerations.h
index 2b99874..b4ed1f5 100644
--- a/include/lldb/lldb-enumerations.h
+++ b/include/lldb/lldb-enumerations.h
@@ -177,7 +177,8 @@
         eStopReasonSignal,
         eStopReasonException,
         eStopReasonExec,        // Program was re-exec'ed
-        eStopReasonPlanComplete
+        eStopReasonPlanComplete,
+        eStopReasonThreadExiting
     } StopReason;
 
     //----------------------------------------------------------------------
diff --git a/source/API/SBThread.cpp b/source/API/SBThread.cpp
index c1e834b..3f3c904 100644
--- a/source/API/SBThread.cpp
+++ b/source/API/SBThread.cpp
@@ -151,6 +151,7 @@
                 case eStopReasonTrace:
                 case eStopReasonExec:
                 case eStopReasonPlanComplete:
+                case eStopReasonThreadExiting:
                     // There is no data for these stop reasons.
                     return 0;
 
@@ -209,6 +210,7 @@
                 case eStopReasonTrace:
                 case eStopReasonExec:
                 case eStopReasonPlanComplete:
+                case eStopReasonThreadExiting:
                     // There is no data for these stop reasons.
                     return 0;
 
@@ -348,6 +350,13 @@
                         }
                         break;
 
+                    case eStopReasonThreadExiting:
+                        {
+                            char limbo_desc[] = "thread exiting";
+                            stop_desc = limbo_desc;
+                            stop_desc_len = sizeof(limbo_desc);
+                        }
+                        break;
                     default:
                         break;
                     }
diff --git a/source/Plugins/Process/POSIX/POSIXStopInfo.cpp b/source/Plugins/Process/POSIX/POSIXStopInfo.cpp
index 79f0a58..3dd3c86 100644
--- a/source/Plugins/Process/POSIX/POSIXStopInfo.cpp
+++ b/source/Plugins/Process/POSIX/POSIXStopInfo.cpp
@@ -21,7 +21,7 @@
 lldb::StopReason
 POSIXLimboStopInfo::GetStopReason() const
 {
-    return lldb::eStopReasonTrace;
+    return lldb::eStopReasonThreadExiting;
 }
 
 const char *
@@ -33,13 +33,13 @@
 bool
 POSIXLimboStopInfo::ShouldStop(Event *event_ptr)
 {
-    return true;
+    return false;
 }
 
 bool
 POSIXLimboStopInfo::ShouldNotify(Event *event_ptr)
 {
-    return true;
+    return false;
 }
 
 //===----------------------------------------------------------------------===//
diff --git a/source/Target/Thread.cpp b/source/Target/Thread.cpp
index 7c5a0d7..4750a4d 100644
--- a/source/Target/Thread.cpp
+++ b/source/Target/Thread.cpp
@@ -1582,15 +1582,16 @@
 {
     switch (reason)
     {
-    case eStopReasonInvalid:      return "invalid";
-    case eStopReasonNone:         return "none";
-    case eStopReasonTrace:        return "trace";
-    case eStopReasonBreakpoint:   return "breakpoint";
-    case eStopReasonWatchpoint:   return "watchpoint";
-    case eStopReasonSignal:       return "signal";
-    case eStopReasonException:    return "exception";
-    case eStopReasonExec:         return "exec";
-    case eStopReasonPlanComplete: return "plan complete";
+    case eStopReasonInvalid:       return "invalid";
+    case eStopReasonNone:          return "none";
+    case eStopReasonTrace:         return "trace";
+    case eStopReasonBreakpoint:    return "breakpoint";
+    case eStopReasonWatchpoint:    return "watchpoint";
+    case eStopReasonSignal:        return "signal";
+    case eStopReasonException:     return "exception";
+    case eStopReasonExec:          return "exec";
+    case eStopReasonPlanComplete:  return "plan complete";
+    case eStopReasonThreadExiting: return "thread exiting";
     }
 
 
diff --git a/source/Target/ThreadPlanBase.cpp b/source/Target/ThreadPlanBase.cpp
index ebf4686..4440837 100644
--- a/source/Target/ThreadPlanBase.cpp
+++ b/source/Target/ThreadPlanBase.cpp
@@ -146,7 +146,8 @@
                 log->Printf("Base plan discarding thread plans for thread tid = 0x%4.4" PRIx64 " (exec.)", m_thread.GetID());
             m_thread.DiscardThreadPlans(false);
             return true;
-            
+
+        case eStopReasonThreadExiting:
         case eStopReasonSignal:
             if (stop_info_sp->ShouldStop(event_ptr))
             {
diff --git a/source/Target/ThreadPlanStepInRange.cpp b/source/Target/ThreadPlanStepInRange.cpp
index 1e51245..d4324b6 100644
--- a/source/Target/ThreadPlanStepInRange.cpp
+++ b/source/Target/ThreadPlanStepInRange.cpp
@@ -384,6 +384,7 @@
         case eStopReasonSignal:
         case eStopReasonException:
         case eStopReasonExec:
+        case eStopReasonThreadExiting:
             {
                 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP));
                 if (log)
diff --git a/source/Target/ThreadPlanStepOut.cpp b/source/Target/ThreadPlanStepOut.cpp
index 5343324..678498f 100644
--- a/source/Target/ThreadPlanStepOut.cpp
+++ b/source/Target/ThreadPlanStepOut.cpp
@@ -252,6 +252,7 @@
         case eStopReasonSignal:
         case eStopReasonException:
         case eStopReasonExec:
+        case eStopReasonThreadExiting:
             return false;
 
         default:
diff --git a/source/Target/ThreadPlanStepOverRange.cpp b/source/Target/ThreadPlanStepOverRange.cpp
index 66754d2..7851f70 100644
--- a/source/Target/ThreadPlanStepOverRange.cpp
+++ b/source/Target/ThreadPlanStepOverRange.cpp
@@ -320,6 +320,7 @@
         case eStopReasonSignal:
         case eStopReasonException:
         case eStopReasonExec:
+        case eStopReasonThreadExiting:
         default:
             if (log)
                 log->PutCString ("ThreadPlanStepInRange got asked if it explains the stop for some reason other than step.");
diff --git a/source/Target/ThreadPlanStepUntil.cpp b/source/Target/ThreadPlanStepUntil.cpp
index 95b0a35..deda7d9 100644
--- a/source/Target/ThreadPlanStepUntil.cpp
+++ b/source/Target/ThreadPlanStepUntil.cpp
@@ -292,6 +292,7 @@
             case eStopReasonSignal:
             case eStopReasonException:
             case eStopReasonExec:
+            case eStopReasonThreadExiting:
                 m_explains_stop = false;
                 break;
             default:
diff --git a/tools/driver/Driver.cpp b/tools/driver/Driver.cpp
index 96fd4cf..623eddf 100644
--- a/tools/driver/Driver.cpp
+++ b/tools/driver/Driver.cpp
@@ -807,6 +807,7 @@
                 case eStopReasonSignal:
                 case eStopReasonException:
                 case eStopReasonExec:
+                case eStopReasonThreadExiting:
                     if (!other_thread.IsValid())
                         other_thread = thread;
                     break;