1 /* 2 * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2012, 2015 SAP SE. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 // Platform-specific definitions for method handles. 27 // These definitions are inlined into class MethodHandles. 28 29 // Adapters 30 enum /* platform_dependent_constants */ { 31 adapter_code_size = NOT_LP64(16000 DEBUG_ONLY(+ 25000)) LP64_ONLY(32000 DEBUG_ONLY(+ 150000)) 32 }; 33 34 // Additional helper methods for MethodHandles code generation: 35 public: 36 static void load_klass_from_Class(MacroAssembler* _masm, Register klass_reg, Register temp_reg, Register temp2_reg); 37 38 static void verify_klass(MacroAssembler* _masm, 39 Register obj_reg, SystemDictionary::WKID klass_id, 40 Register temp_reg, Register temp2_reg, 41 const char* error_message = "wrong klass") NOT_DEBUG_RETURN; 42 verify_method_handle(MacroAssembler * _masm,Register mh_reg,Register temp_reg,Register temp2_reg)43 static void verify_method_handle(MacroAssembler* _masm, Register mh_reg, 44 Register temp_reg, Register temp2_reg) { 45 verify_klass(_masm, mh_reg, SystemDictionary::WK_KLASS_ENUM_NAME(java_lang_invoke_MethodHandle), 46 temp_reg, temp2_reg, 47 "reference is a MH"); 48 } 49 50 static void verify_ref_kind(MacroAssembler* _masm, int ref_kind, Register member_reg, Register temp) NOT_DEBUG_RETURN; 51 52 // Similar to InterpreterMacroAssembler::jump_from_interpreted. 53 // Takes care of special dispatch from single stepping too. 54 static void jump_from_method_handle(MacroAssembler* _masm, Register method, 55 Register temp, Register temp2, 56 bool for_compiler_entry); 57 58 static void jump_to_lambda_form(MacroAssembler* _masm, 59 Register recv, Register method_temp, 60 Register temp2, Register temp3, 61 bool for_compiler_entry); 62