// Called when the method_holder is getting linked. Setup entrypoints so the method
// is ready to be called from interpreter, compiler, and vtables.

void methodOopDesc::link_method(methodHandle h_method, TRAPS) {

  {- -------------------------------------------
  (1) 既にリンク処理が終わっていれば, ここでリターン.
      ---------------------------------------- -}

      // If the code cache is full, we may reenter this function for the
      // leftover methods that weren't linked.
      if (_i2i_entry != NULL) return;

  {- -------------------------------------------
  (1) (assert)
      ---------------------------------------- -}

      assert(_adapter == NULL, "init'd to NULL" );
      assert( _code == NULL, "nothing compiled yet" );

  {- -------------------------------------------
  (1) Interpreter::entry_for_method() を呼んで
      適切な method entry stub を取得し, 
      それをこのメソッドがインタープリタから呼び出される際の
      エントリーポイント(_from_interpreted_entry, _i2i_entry)を設定する

      (なお, native method の場合には, ... #TODO
      )
      ---------------------------------------- -}

      // Setup interpreter entrypoint
      assert(this == h_method(), "wrong h_method()" );
      address entry = Interpreter::entry_for_method(h_method);
      assert(entry != NULL, "interpreter entry must be non-null");
      // Sets both _i2i_entry and _from_interpreted_entry
      set_interpreter_entry(entry);
      if (is_native() && !is_method_handle_invoke()) {
        set_native_function(
          SharedRuntime::native_method_throw_unsatisfied_link_error_entry(),
          !native_bind_event_is_interesting);
      }

  {- -------------------------------------------
  (1) methodOopDesc::make_adapters() を呼んで, 
      このメソッドが JIT 生成コードから呼び出される際の
      エントリーポイント(_from_compiled_entry)を設定する.
      ---------------------------------------- -}

      // Setup compiler entrypoint.  This is made eagerly, so we do not need
      // special handling of vtables.  An alternative is to make adapters more
      // lazily by calling make_adapter() from from_compiled_entry() for the
      // normal calls.  For vtable calls life gets more complicated.  When a
      // call-site goes mega-morphic we need adapters in all methods which can be
      // called from the vtable.  We need adapters on such methods that get loaded
      // later.  Ditto for mega-morphic itable calls.  If this proves to be a
      // problem we'll make these lazily later.
      (void) make_adapters(h_method, CHECK);

      // ONLY USE the h_method now as make_adapter may have blocked

    }