1 /* 2 * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 // Platform-specific definitions for method handles. 26 // These definitions are inlined into class MethodHandles. 27 28 // Adapters 29 enum /* platform_dependent_constants */ { 30 adapter_code_size = NOT_LP64(16000 DEBUG_ONLY(+ 25000)) LP64_ONLY(32000 DEBUG_ONLY(+ 150000)) 31 }; 32 33 // Additional helper methods for MethodHandles code generation: 34 public: 35 static void load_klass_from_Class(MacroAssembler* _masm, Register klass_reg); 36 37 static void verify_klass(MacroAssembler* _masm, 38 Register obj, SystemDictionary::WKID klass_id, 39 const char* error_message = "wrong klass") NOT_DEBUG_RETURN; 40 verify_method_handle(MacroAssembler * _masm,Register mh_reg)41 static void verify_method_handle(MacroAssembler* _masm, Register mh_reg) { 42 verify_klass(_masm, mh_reg, SystemDictionary::WK_KLASS_ENUM_NAME(java_lang_invoke_MethodHandle), 43 "reference is a MH"); 44 } 45 46 static void verify_ref_kind(MacroAssembler* _masm, int ref_kind, Register member_reg, Register temp) NOT_DEBUG_RETURN; 47 48 // Similar to InterpreterMacroAssembler::jump_from_interpreted. 49 // Takes care of special dispatch from single stepping too. 50 static void jump_from_method_handle(MacroAssembler* _masm, Register method, Register temp, 51 bool for_compiler_entry); 52 53 static void jump_to_lambda_form(MacroAssembler* _masm, 54 Register recv, Register method_temp, 55 Register temp2, 56 bool for_compiler_entry); 57 saved_last_sp_register()58 static Register saved_last_sp_register() { 59 // Should be in sharedRuntime, not here. 60 return LP64_ONLY(r13) NOT_LP64(rsi); 61 } 62