message: update gdb tool
diff: @@ -11,10 +11,10 @@ define ____get_current
  end
  define cbacktracelist
  - ____executor_globals
  if COROG.coro_num == 0
  printf "no coro running \n"
  end
  + ____executor_globals
  set $cid = 1
  while $cid < COROG.coro_num + 1
  ____get_current
  @@ -29,7 +29,7 @@ define cbacktracelist
  if ! swCoroG.coroutines[$cid]
  printf "corouine %d has been exited\n", $cid
  else
  - dumpco $cid
  + __dumpco_bt $cid
  end
  set $cid = $cid + 1
  end
  @@ -40,11 +40,14 @@ document cbacktracelist
  end
  define cbacktrace
  + if COROG.coro_num == 0
  + printf "no coro running \n"
  + end
  ____executor_globals
  ____get_current
  if $current_co && $current_co->cid
  color $GREEN
  - printf "coroutine cid:[%d]\n",$cid
  + printf "coroutine cid:[%d]\n",$current_co->cid
  color_reset
  __dumpco_bt $current_co->cid
  else
  