Update LLDB snapshot to upstream r216948 (git 50f7fe44)

This is approximately "LLDB 3.5" although with a little bit of skew,
and will go along with the Clang 3.5 import.

Sponsored by:	DARPA, AFRL

1 files changed, 54 insertions, 6 deletions

diff --git a/contrib/llvm/tools/lldb/source/API/SBQueueItem.cpp b/contrib/llvm/tools/lldb/source/API/SBQueueItem.cpp
index 481d51e..6a1aa7b 100644
--- a/contrib/llvm/tools/lldb/source/API/SBQueueItem.cpp
+++ b/contrib/llvm/tools/lldb/source/API/SBQueueItem.cpp
@@ -14,6 +14,8 @@
 #include "lldb/API/SBQueueItem.h"
 #include "lldb/API/SBThread.h"
 #include "lldb/Core/Address.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Target/Process.h"
 #include "lldb/Target/QueueItem.h"
 #include "lldb/Target/Thread.h"
 
@@ -44,13 +46,23 @@ SBQueueItem::~SBQueueItem()
 bool
 SBQueueItem::IsValid() const
 {
-    return m_queue_item_sp.get() != NULL;
+    bool is_valid = m_queue_item_sp.get() != NULL;
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
+    if (log)
+        log->Printf("SBQueueItem(%p)::IsValid() == %s",
+                    static_cast<void*>(m_queue_item_sp.get()),
+                    is_valid ? "true" : "false");
+    return is_valid;
 }
 
 
 void
 SBQueueItem::Clear ()
 {
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
+    if (log)
+        log->Printf("SBQueueItem(%p)::Clear()",
+                    static_cast<void*>(m_queue_item_sp.get()));
     m_queue_item_sp.reset();
 }
 
@@ -66,10 +78,15 @@ lldb::QueueItemKind
 SBQueueItem::GetKind () const
 {
     QueueItemKind result = eQueueItemKindUnknown;
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
     if (m_queue_item_sp)
     {
         result = m_queue_item_sp->GetKind ();
     }
+    if (log)
+        log->Printf("SBQueueItem(%p)::GetKind() == %d",
+                    static_cast<void*>(m_queue_item_sp.get()),
+                    static_cast<int>(result));
     return result;
 }
 
@@ -86,10 +103,21 @@ SBAddress
 SBQueueItem::GetAddress () const
 {
     SBAddress result;
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
     if (m_queue_item_sp)
     {
         result.SetAddress (&m_queue_item_sp->GetAddress());
     }
+    if (log)
+    {
+        StreamString sstr;
+        const Address *addr = result.get();
+        if (addr)
+            addr->Dump (&sstr, NULL, Address::DumpStyleModuleWithFileAddress, Address::DumpStyleInvalid, 4);
+        log->Printf ("SBQueueItem(%p)::GetAddress() == SBAddress(%p): %s",
+                     static_cast<void*>(m_queue_item_sp.get()),
+                     static_cast<void*>(result.get()), sstr.GetData());
+    }
     return result;
 }
 
@@ -106,14 +134,34 @@ SBThread
 SBQueueItem::GetExtendedBacktraceThread (const char *type)
 {
     SBThread result;
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
     if (m_queue_item_sp)
     {
-        ThreadSP thread_sp;
-        ConstString type_const (type);
-        thread_sp = m_queue_item_sp->GetExtendedBacktraceThread (type_const);
-        if (thread_sp)
+        ProcessSP process_sp = m_queue_item_sp->GetProcessSP();
+        Process::StopLocker stop_locker;
+        if (process_sp && stop_locker.TryLock(&process_sp->GetRunLock()))
         {
-            result.SetThread (thread_sp);
+            ThreadSP thread_sp;
+            ConstString type_const (type);
+            thread_sp = m_queue_item_sp->GetExtendedBacktraceThread (type_const);
+            if (thread_sp)
+            {
+                // Save this in the Process' ExtendedThreadList so a strong pointer retains the
+                // object
+                process_sp->GetExtendedThreadList().AddThread (thread_sp);
+                result.SetThread (thread_sp);
+                if (log)
+                {
+                    const char *queue_name = thread_sp->GetQueueName();
+                    if (queue_name == NULL)
+                        queue_name = "";
+                    log->Printf ("SBQueueItem(%p)::GetExtendedBacktraceThread() = new extended Thread created (%p) with queue_id 0x%" PRIx64 " queue name '%s'",
+                                 static_cast<void*>(m_queue_item_sp.get()),
+                                 static_cast<void*>(thread_sp.get()),
+                                 static_cast<uint64_t>(thread_sp->GetQueueID()),
+                                 queue_name);
+                }
+            }
         }
     }
     return result;