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diff --git a/tools/lldb-mi/MICmnStreamStdinLinux.cpp b/tools/lldb-mi/MICmnStreamStdinLinux.cpp
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+//===-- MICmnStreamStdinLinux.cpp --------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+//++
+// File: MIUtilStreamStdin.cpp
+//
+// Overview: CMICmnStreamStdinLinux implementation.
+//
+// Environment: Compilers: Visual C++ 12.
+// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
+// Libraries: See MIReadmetxt.
+//
+// Copyright: None.
+//--
+
+// Third Party Headers:
+#if !defined( _MSC_VER )
+#include <sys/select.h>
+#include <termios.h>
+#endif // !defined( _MSC_VER )
+#include <string.h> // For std::strerror()
+
+// In-house headers:
+#include "MICmnStreamStdinLinux.h"
+#include "MICmnLog.h"
+#include "MICmnResources.h"
+#include "MIUtilSingletonHelper.h"
+
+//++ ------------------------------------------------------------------------------------
+// Details: CMICmnStreamStdinLinux constructor.
+// Type: Method.
+// Args: None.
+// Return: None.
+// Throws: None.
+//--
+CMICmnStreamStdinLinux::CMICmnStreamStdinLinux( void )
+: m_constBufferSize( 1024 )
+, m_pStdin( nullptr )
+, m_pCmdBuffer( nullptr )
+{
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details: CMICmnStreamStdinLinux destructor.
+// Type: Overridable.
+// Args: None.
+// Return: None.
+// Throws: None.
+//--
+CMICmnStreamStdinLinux::~CMICmnStreamStdinLinux( void )
+{
+ Shutdown();
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details: Initialize resources for *this Stdin stream.
+// Type: Method.
+// Args: None.
+// Return: MIstatus::success - Functional succeeded.
+// MIstatus::failure - Functional failed.
+// Throws: None.
+//--
+bool CMICmnStreamStdinLinux::Initialize( void )
+{
+ if( m_bInitialized )
+ return MIstatus::success;
+
+ bool bOk = MIstatus::success;
+ CMIUtilString errMsg;
+
+ // Note initialisation order is important here as some resources depend on previous
+ MI::ModuleInit< CMICmnLog > ( IDS_MI_INIT_ERR_LOG , bOk, errMsg );
+ MI::ModuleInit< CMICmnResources >( IDS_MI_INIT_ERR_RESOURCES, bOk, errMsg );
+
+ // Other resources required
+ if( bOk )
+ {
+ m_pCmdBuffer = new MIchar[ m_constBufferSize ];
+ m_pStdin = stdin;
+ }
+
+ // Clear error indicators for std input
+ ::clearerr( stdin );
+
+ m_bInitialized = bOk;
+
+ if( !bOk )
+ {
+ CMIUtilString strInitError( CMIUtilString::Format( MIRSRC( IDS_MI_INIT_ERR_OS_STDIN_HANDLER ), errMsg.c_str() ) );
+ SetErrorDescription( strInitError );
+ return MIstatus::failure;
+ }
+
+ return MIstatus::success;
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details: Release resources for *this Stdin stream.
+// Type: Method.
+// Args: None.
+// Return: MIstatus::success - Functional succeeded.
+// MIstatus::failure - Functional failed.
+// Throws: None.
+//--
+bool CMICmnStreamStdinLinux::Shutdown( void )
+{
+ if( !m_bInitialized )
+ return MIstatus::success;
+
+ m_bInitialized = false;
+
+ ClrErrorDescription();
+
+ bool bOk = MIstatus::success;
+ CMIUtilString errMsg;
+
+ // Tidy up
+ if( m_pCmdBuffer != nullptr )
+ {
+ delete [] m_pCmdBuffer;
+ m_pCmdBuffer = nullptr;
+ }
+ m_pStdin = nullptr;
+
+ // Note shutdown order is important here
+ MI::ModuleShutdown< CMICmnResources >( IDS_MI_INIT_ERR_RESOURCES, bOk, errMsg );
+ MI::ModuleShutdown< CMICmnLog > ( IDS_MI_INIT_ERR_LOG , bOk, errMsg );
+
+ if( !bOk )
+ {
+ SetErrorDescriptionn( MIRSRC( IDS_MI_SHTDWN_ERR_OS_STDIN_HANDLER ), errMsg.c_str() );
+ }
+
+ return MIstatus::success;
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details: Determine if stdin has any characters present in its buffer.
+// Type: Method.
+// Args: vwbAvail - (W) True = There is chars available, false = nothing there.
+// Return: MIstatus::success - Functional succeeded.
+// MIstatus::failure - Functional failed.
+// Throws: None.
+//--
+bool CMICmnStreamStdinLinux::InputAvailable( bool & vwbAvail )
+{
+/* AD: Not used ATM but could come in handy just in case we need to do
+ this, poll for input
+
+ static const int STDIN = 0;
+ static bool bInitialized = false;
+
+ if( !bInitialized )
+ {
+ // Use termios to turn off line buffering
+ ::termios term;
+ ::tcgetattr( STDIN, &term );
+ ::term.c_lflag &= ~ICANON;
+ ::tcsetattr( STDIN, TCSANOW, &term );
+ ::setbuf( stdin, NULL );
+ bInitialized = true;
+ }
+
+ int nBytesWaiting;
+ ::ioctl( STDIN, FIONREAD, &nBytesWaiting );
+ vwbAvail = (nBytesWaiting > 0);
+
+ return MIstatus::success;
+*/
+
+ return MIstatus::success;
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details: Wait on new line of data from stdin stream (completed by '\n' or '\r').
+// Type: Method.
+// Args: vwErrMsg - (W) Empty string ok or error description.
+// Return: MIchar * - text buffer pointer or NULL on failure.
+// Throws: None.
+//--
+const MIchar * CMICmnStreamStdinLinux::ReadLine( CMIUtilString & vwErrMsg )
+{
+ vwErrMsg.clear();
+
+ // Read user input
+ const MIchar * pText = ::fgets( &m_pCmdBuffer[ 0 ], m_constBufferSize, stdin );
+ if( pText == nullptr )
+ {
+ if( ::ferror( m_pStdin ) != 0 )
+ vwErrMsg = ::strerror( errno );
+ return nullptr;
+ }
+
+ // Strip off new line characters
+ for( MIchar * pI = m_pCmdBuffer; *pI != '\0'; pI++ )
+ {
+ if( (*pI == '\n') || (*pI == '\r') )
+ {
+ *pI = '\0';
+ break;
+ }
+ }
+
+ return pText;
+}
+