Index: lldb/trunk/docs/lldb-gdb-remote.txt
===================================================================
--- lldb/trunk/docs/lldb-gdb-remote.txt
+++ lldb/trunk/docs/lldb-gdb-remote.txt
@@ -504,6 +504,48 @@
 -rw-r--r--  1 username groupname    3190 Aug 12 16:46 Makefile
 
 //----------------------------------------------------------------------
+// "qPlatform_mkdir"
+//
+// BRIEF
+//  Creates a new directory on the connected remote machine.
+//
+// PRIORITY TO IMPLEMENT
+//  Low. This command allows LLDB clients to create new directories on
+//  a remote host.
+//
+/----------------------------------------------------------------------
+
+Request:
+    qPlatform_mkdir:<hex-file-mode>,<ascii-hex-path>
+
+Reply:
+    F<mkdir-return-code>
+        mkdir called successfully and returned with the given return code
+    Exx
+        An error occurred
+
+//----------------------------------------------------------------------
+// "qPlatform_chmod"
+//
+// BRIEF
+//  Creates a new directory on the connected remote machine.
+//
+// PRIORITY TO IMPLEMENT
+//  Low. This command allows LLDB clients to change the permissions of
+//  a file on the remote host.
+//
+/----------------------------------------------------------------------
+
+Request:
+    qPlatform_chmod:<hex-file-mode>,<ascii-hex-path>
+
+Reply:
+    F<chmod-return-code>
+        chmod called successfully and returned with the given return code
+    Exx
+        An error occurred
+
+//----------------------------------------------------------------------
 // "qHostInfo"
 //
 // BRIEF
Index: lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
===================================================================
--- lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
+++ lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
@@ -3168,12 +3168,14 @@
     const char *packet = stream.GetData();
     int packet_len = stream.GetSize();
     StringExtractorGDBRemote response;
-    if (SendPacketAndWaitForResponse(packet, packet_len, response, false) == PacketResult::Success)
-    {
-        return Error(response.GetHexMaxU32(false, UINT32_MAX), eErrorTypePOSIX);
-    }
-    return Error();
 
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false) != PacketResult::Success)
+        return Error("failed to send '%s' packet", packet);
+
+    if (response.GetChar() != 'F')
+        return Error("invalid response to '%s' packet", packet);
+
+    return Error(response.GetU32(UINT32_MAX), eErrorTypePOSIX);
 }
 
 Error
@@ -3188,12 +3190,14 @@
     const char *packet = stream.GetData();
     int packet_len = stream.GetSize();
     StringExtractorGDBRemote response;
-    if (SendPacketAndWaitForResponse(packet, packet_len, response, false) == PacketResult::Success)
-    {
-        return Error(response.GetHexMaxU32(false, UINT32_MAX), eErrorTypePOSIX);
-    }
-    return Error();
-    
+
+    if (SendPacketAndWaitForResponse(packet, packet_len, response, false) != PacketResult::Success)
+        return Error("failed to send '%s' packet", packet);
+
+    if (response.GetChar() != 'F')
+        return Error("invalid response to '%s' packet", packet);
+
+    return Error(response.GetU32(false, UINT32_MAX), eErrorTypePOSIX);
 }
 
 static uint64_t
Index: lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp
===================================================================
--- lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp
+++ lldb/trunk/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp
@@ -846,10 +846,11 @@
         std::string path;
         packet.GetHexByteString(path);
         Error error = FileSystem::MakeDirectory(path.c_str(), mode);
-        if (error.Success())
-            return SendPacketNoLock ("OK", 2);
-        else
-            return SendErrorResponse(error.GetError());
+        
+        StreamGDBRemote response;
+        response.Printf("F%u", error.GetError());
+
+        return SendPacketNoLock(response.GetData(), response.GetSize());
     }
     return SendErrorResponse(20);
 }
@@ -865,10 +866,11 @@
         std::string path;
         packet.GetHexByteString(path);
         Error error = FileSystem::SetFilePermissions(path.c_str(), mode);
-        if (error.Success())
-            return SendPacketNoLock ("OK", 2);
-        else
-            return SendErrorResponse(error.GetError());
+
+        StreamGDBRemote response;
+        response.Printf("F%u", error.GetError());
+
+        return SendPacketNoLock(response.GetData(), response.GetSize());
     }
     return SendErrorResponse(19);
 }