Add print_list gdb macro

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12687 d0543943-73ff-0310-b7d9-9358b9ac24b2

support-d/.gdbinit

@@ -59,4 +59,17 @@ end
 document event_dump
 Usage: event_dump [switch_event_t*]
 Print an event's headers and values
-end
+end
+
+define print_list
+	dont-repeat
+	set $x = $arg0
+	while ($x != 0x0)
+		print *$x
+		set $x = $x->next
+	end
+end
+document print_list
+Usage print_list [symbol]
+Prints all the remaining elements of a linked list
+end