When attaching GDB to OpenOCD, the target state is no longer affected.

Added gdb_sync feature that allows GDB to sync up to target state.
Issue "monitor gdb_sync" and the next stepi, will return immediately
with updated register values to GDB.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2754 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/server/gdb_server.h

@@ -43,6 +43,10 @@ typedef struct gdb_connection_s
 	int closed;
 	int busy;
 	int noack_mode;
+	bool sync; 	/* set flag to true if you want the next stepi to return immediately.
+	               allowing GDB to pick up a fresh set of register values from the target
+	               without modifying the target state. */
+
 } gdb_connection_t;
 
 typedef struct gdb_service_s