// Same as JRT Entry but allows for return value after the safepoint
// to get back into Java from the VM

#define JRT_BLOCK_ENTRY(result_type, header)                         \

  {- -------------------------------------------
  (1) (関数定義の関数名および型宣言部が生成される)
      ---------------------------------------- -}

      result_type header {                                               \

  {- -------------------------------------------
  (1) (トレース出力)
      ---------------------------------------- -}

        TRACE_CALL(result_type, header)                                  \

  {- -------------------------------------------
  (1) (変数宣言など) 
      (See: HandleMarkCleaner)
      ---------------------------------------- -}

        HandleMarkCleaner __hm(thread);