src/hotspot/cpu/s390/methodHandles_s390.hpp
author vlivanov
Wed, 24 Jul 2019 10:50:40 +0300
changeset 57574 6a159c6c23cc
parent 47216 71c04702a3d5
permissions -rw-r--r--
8227260: JNI upcalls should bypass class initialization barrier in c2i adapter Reviewed-by: eosterlund, dholmes, mdoerr
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/*
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 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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 * Copyright (c) 2016 SAP SE. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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// Platform-specific definitions for method handles.
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// These definitions are inlined into class MethodHandles.
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  // Adapters
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  enum /* platform_dependent_constants */ {
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    adapter_code_size = NOT_LP64(23000 DEBUG_ONLY(+ 40000)) LP64_ONLY(35000 DEBUG_ONLY(+ 50000))
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  };
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  // Additional helper methods for MethodHandles code generation:
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 public:
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  static void load_klass_from_Class(MacroAssembler* _masm, Register klass_reg, Register temp_reg, Register temp2_reg);
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  static void verify_klass(MacroAssembler* _masm,
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                           Register obj_reg, SystemDictionary::WKID klass_id,
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                           Register temp_reg, Register temp2_reg,
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                           const char* error_message = "wrong klass") NOT_DEBUG_RETURN;
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  static void verify_method_handle(MacroAssembler* _masm, Register mh_reg,
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                                   Register temp_reg, Register temp2_reg) {
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    verify_klass(_masm, mh_reg, SystemDictionary::WK_KLASS_ENUM_NAME(java_lang_invoke_MethodHandle),
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                 temp_reg, temp2_reg,
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                 "reference is a MH");
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  }
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  static void verify_ref_kind(MacroAssembler* _masm, int ref_kind, Register member_reg, Register temp) NOT_DEBUG_RETURN;
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  // Similar to InterpreterMacroAssembler::jump_from_interpreted.
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  // Takes care of special dispatch from single stepping too.
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  static void jump_from_method_handle(MacroAssembler* _masm, Register method,
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                                      Register temp, Register temp2,
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                                      bool for_compiler_entry);
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  static void jump_to_lambda_form(MacroAssembler* _masm,
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                                  Register recv, Register method_temp,
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                                  Register temp2, Register temp3,
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                                  bool for_compiler_entry);