Make the platform process connect path less chatty.

Summary:
If a stream contains an empty string, no need to append it to the output
(otherwise we end up with a blank line). Also, no need to print a status
message when the state changes to connected, as this string brings no
information -- "Process 0" does not mean anything to the user, and the
process being connected has no meaning either.

Test Plan:
Connect to a remote linux platform mode daemon with `platform select
remote-linux` followed by `platform connect ...`, create a target and
run it, observe the output. Also, run the full test suite (dosep.py).

Before:
    (lldb) [...] connect, etc.
    (lldb) r
    Process 0 connected

    Process 5635 launched: '/Users/sas/Source/test' (x86_64)
    Process 5635 stopped

After:
    (lldb) [...] connect, etc.
    (lldb) r
    Process 5635 launched: '/Users/sas/Source/test' (x86_64)
    Process 5635 stopped

Reviewers: tfiala, vharron, clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D6593

llvm-svn: 224188

2 files changed, 3 insertions, 2 deletions

diff --git a/lldb/source/Commands/CommandObjectProcess.cpp b/lldb/source/Commands/CommandObjectProcess.cpp
index 897e39051f3..ec7b478fbec 100644
--- a/lldb/source/Commands/CommandObjectProcess.cpp
+++ b/lldb/source/Commands/CommandObjectProcess.cpp
@@ -268,7 +268,8 @@ protected:
             ProcessSP process_sp (target->GetProcessSP());
             if (process_sp)
             {
-                if (stream.GetData())
+                const char *data = stream.GetData();
+                if (data && strlen(data) > 0)
                     result.AppendMessage(stream.GetData());
                 result.AppendMessageWithFormat ("Process %" PRIu64 " launched: '%s' (%s)\n", process_sp->GetID(), exe_module_sp->GetFileSpec().GetPath().c_str(), archname);
                 result.SetStatus (eReturnStatusSuccessFinishResult);
diff --git a/lldb/source/Target/Process.cpp b/lldb/source/Target/Process.cpp
index ab82db3a0de..207f07015a4 100644
--- a/lldb/source/Target/Process.cpp
+++ b/lldb/source/Target/Process.cpp
@@ -1044,7 +1044,6 @@ Process::HandleProcessStateChangedEvent (const EventSP &event_sp,
     {
         case eStateInvalid:
         case eStateUnloaded:
-        case eStateConnected:
         case eStateAttaching:
         case eStateLaunching:
         case eStateStepping:
@@ -1060,6 +1059,7 @@ Process::HandleProcessStateChangedEvent (const EventSP &event_sp,
             }
             break;
 
+        case eStateConnected:
         case eStateRunning:
             // Don't be chatty when we run...
             break;