Initial commit of LLDB Machine Interface Frontend.

- Tested with Eclipse, likely to work with other GDB/MI compatible GUIs.
- Some but not all MI commands have been implemented. See MIReadme.txt for more info.
- Written from scratch, no GPL code, based on LLDB Public API.
- Built for Linux, Windows and OSX. Tested on Linux and Windows.
- GDB/MI Command Reference, https://sourceware.org/gdb/onlinedocs/gdb/GDB_002fMI.html

llvm-svn: 208972
diff --git a/lldb/tools/lldb-mi/MICmdCmdSupportList.cpp b/lldb/tools/lldb-mi/MICmdCmdSupportList.cpp
new file mode 100644
index 0000000..3df8e7a
--- /dev/null
+++ b/lldb/tools/lldb-mi/MICmdCmdSupportList.cpp
@@ -0,0 +1,103 @@
+//===-- MICmdCmdSupportList.cpp ---------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+//++
+// File:		MICmdCmdSupportList.cpp
+//
+// Overview:	CMICmdCmdSupportListFeatures			implementation.
+//
+// Environment:	Compilers:	Visual C++ 12.
+//							gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
+//				Libraries:	See MIReadmetxt. 
+//
+// Copyright:	None.
+//--
+
+// In-house headers:
+#include "MICmnConfig.h"
+#include "MICmdCmdSupportList.h"
+#include "MICmnMIResultRecord.h"
+#include "MICmnMIValueConst.h"
+#include "MICmnMIValueList.h"
+
+//++ ------------------------------------------------------------------------------------
+// Details:	CMICmdCmdSupportListFeatures constructor.
+// Type:	Method.
+// Args:	None.
+// Return:	None.
+// Throws:	None.
+//--
+CMICmdCmdSupportListFeatures::CMICmdCmdSupportListFeatures( void )
+{
+	// Command factory matches this name with that received from the stdin stream
+	m_strMiCmd = "list-features";
+	
+	// Required by the CMICmdFactory when registering *this commmand
+	m_pSelfCreatorFn = &CMICmdCmdSupportListFeatures::CreateSelf;
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	CMICmdCmdSupportListFeatures destructor.
+// Type:	Overrideable.
+// Args:	None.
+// Return:	None.
+// Throws:	None.
+//--
+CMICmdCmdSupportListFeatures::~CMICmdCmdSupportListFeatures( void )
+{
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	The invoker requires this function. The command does work in this function.
+//			The command is likely to communicate with the LLDB SBDebugger in here.
+// Type:	Overridden.
+// Args:	None.
+// Return:	MIstatus::success - Functional succeeded.
+//			MIstatus::failure - Functional failed.
+// Throws:	None.
+//--
+bool CMICmdCmdSupportListFeatures::Execute( void )
+{
+	// Do nothing
+	
+	return MIstatus::success;
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	The invoker requires this function. The command prepares a MI Record Result
+//			for the work carried out in the Execute().
+// Type:	Overridden.
+// Args:	None.
+// Return:	MIstatus::success - Functional succeeded.
+//			MIstatus::failure - Functional failed.
+// Throws:	None.
+//--
+bool CMICmdCmdSupportListFeatures::Acknowledge( void )
+{
+	const CMICmnMIValueConst miValueConst( "data-read-memory-bytes" );
+	const CMICmnMIValueList miValueList( miValueConst );
+	const CMICmnMIValueResult miValueResult( "features", miValueList );
+	const CMICmnMIResultRecord miRecordResult( m_cmdData.nMiCmdNumber, CMICmnMIResultRecord::eResultClass_Done, miValueResult );
+	m_miResultRecord = miRecordResult;
+
+	return MIstatus::success;
+}
+
+//++ ------------------------------------------------------------------------------------
+// Details:	Required by the CMICmdFactory when registering *this commmand. The factory
+//			calls this function to create an instance of *this command.
+// Type:	Static method.
+// Args:	None.
+// Return:	CMICmdBase * - Pointer to a new command.
+// Throws:	None.
+//--
+CMICmdBase * CMICmdCmdSupportListFeatures::CreateSelf( void )
+{
+	return new CMICmdCmdSupportListFeatures();
+}
\ No newline at end of file