When a client asks for a queue pending item's extended backtrace,

hold a strong pointer to that extended backtrace thread in the Process
just like we do for asking a thread's extended backtrace.
Also, give extended backtrace threads an invalid ThreadIndexID number.
We'll still give them valid thread_id's.  Clients who want to know the
original thread's IndexID can call GetExtendedBacktraceOriginatingIndexID().
<rdar://problem/16126034> 

llvm-svn: 203088

1 files changed, 5 insertions, 1 deletions

diff --git a/lldb/source/Plugins/Process/Utility/HistoryThread.cpp b/lldb/source/Plugins/Process/Utility/HistoryThread.cpp
index d045bc7e10d..6b8c7dfd5d3 100644
--- a/lldb/source/Plugins/Process/Utility/HistoryThread.cpp
+++ b/lldb/source/Plugins/Process/Utility/HistoryThread.cpp
@@ -20,12 +20,14 @@
 using namespace lldb;
 using namespace lldb_private;
 
+//  Constructor
+
 HistoryThread::HistoryThread (lldb_private::Process &process, 
                               lldb::tid_t tid,
                               std::vector<lldb::addr_t> pcs, 
                               uint32_t stop_id, 
                               bool stop_id_is_valid) : 
-        Thread (process, tid),
+        Thread (process, tid, true),
         m_framelist_mutex(),
         m_framelist(),
         m_pcs (pcs),
@@ -43,6 +45,8 @@ HistoryThread::HistoryThread (lldb_private::Process &process,
         log->Printf ("%p HistoryThread::HistoryThread", this);
 }
 
+//  Destructor
+
 HistoryThread::~HistoryThread ()
 {
     Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));