methodHandles_x86.hpp revision 3602:da91efe96a93 
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
29enum /* 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:
34public:
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
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
58  static void trace_method_handle(MacroAssembler* _masm, const char* adaptername) PRODUCT_RETURN;
59
60  static Register saved_last_sp_register() {
61    // Should be in sharedRuntime, not here.
62    return LP64_ONLY(r13) NOT_LP64(rsi);
63  }
64