- add support for cortex_m3 target_request debugmsgs

- target request handler disabled by default until a target has been registered

git-svn-id: svn://svn.berlios.de/openocd/trunk@259 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/target/target.h

@@ -170,6 +170,7 @@ typedef struct target_s
 	struct watchpoint_s *watchpoints;	/* list of watchpoints */
 	struct trace_s *trace_info;			/* generic trace information */
 	struct debug_msg_receiver_s *dbgmsg;/* list of debug message receivers */
+	u32 dbg_msg_enabled;				/* debug message status */
 	void *arch_info;					/* architecture specific information */
 	struct target_s *next;				/* next target in list */
 } target_t;