[Lldb-commits] [lldb] r244866 - [LLDB][MIPS] Use qfThreadID if qC packet is not supported by target

[Jaydeep Patil via lldb-commits]

Author: jaydeep
Date: Wed Aug 12 22:46:36 2015
New Revision: 244866

URL: http://llvm.org/viewvc/llvm-project?rev=244866&view=rev
Log:
[LLDB][MIPS] Use qfThreadID if qC packet is not supported by target
    SUMMARY:
    The patch uses qfThreadID to get the thread IDs if qC packet is not supported by target.
    
    Reviewers: jingham, clayborg
    Subscribers: nitesh.jain, mohit.bhakkad, sagar, bhushan and lldb-commits
    Differential Revision: http://reviews.llvm.org/D11519

Modified:
    lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp

Modified: lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp?rev=244866&r1=244865&r2=244866&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp (original)
+++ lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp Wed Aug 12 22:46:36 2015
@@ -1459,6 +1459,21 @@ GDBRemoteCommunicationClient::GetCurrent
                 }
             }
         }
+
+        // If we don't get a response for $qC, check if $qfThreadID gives us a result.
+        if (m_curr_pid == LLDB_INVALID_PROCESS_ID)
+        {
+            std::vector<lldb::tid_t> thread_ids;
+            bool sequence_mutex_unavailable;
+            size_t size;
+            size = GetCurrentThreadIDs (thread_ids, sequence_mutex_unavailable);
+            if (size && sequence_mutex_unavailable == false)
+            {
+                m_curr_pid = thread_ids.front();
+                m_curr_pid_is_valid = eLazyBoolYes;
+                return m_curr_pid;
+            }
+        }
     }
     
     return LLDB_INVALID_PROCESS_ID;