RTOS Thread awareness support wip

- works on Cortex-M3 with ThreadX and FreeRTOS

Compared to original patch a few nits were fixed:

- remove stricmp usage
- unsigned compare fix
- printf formatting fixes
- fixed a bug with overrunning a memory buffer allocated with malloc.

src/server/gdb_server.h

@@ -8,6 +8,9 @@
  *   Copyright (C) 2008 by Spencer Oliver                                  *
  *   spen@spen-soft.co.uk                                                  *
  *                                                                         *
+ *   Copyright (C) 2011 by Broadcom Corporation                            *
+ *   Evan Hunter - ehunter@broadcom.com                                    *
+ *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
@@ -39,6 +42,8 @@ struct gdb_service
 int gdb_target_add_all(struct target *target);
 int gdb_register_commands(struct command_context *command_context);
 
+int gdb_put_packet(struct connection *connection, char *buffer, int len);
+
 #define ERROR_GDB_BUFFER_TOO_SMALL (-800)
 #define ERROR_GDB_TIMEOUT (-801)