1 /*
2 * Copyright (c) 2024, 2025, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.
8 *
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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,
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23 */
24
25 #ifndef SHARE_CDS_FINALIMAGERECIPES_HPP
26 #define SHARE_CDS_FINALIMAGERECIPES_HPP
27
28 #include "oops/oopsHierarchy.hpp"
29 #include "utilities/exceptions.hpp"
30
31 class InstanceKlass;
32 class Klass;
33
34 template <typename T> class GrowableArray;
35 template <typename T> class Array;
36
37 // This class is used for transferring information from the AOTConfiguration file (aka the "preimage")
38 // to the JVM that creates the AOTCache (aka the "final image").
39 // - The recipes are recorded when CDSConfig::is_dumping_preimage_static_archive() is true.
40 // - The recipes are applied when CDSConfig::is_dumping_final_static_archive() is true.
41 // The following information are recorded:
42 // - The list of all classes that are stored in the AOTConfiguration file.
43 // - The list of all classes that require AOT resolution of invokedynamic call sites.
44 class FinalImageRecipes {
45 // A list of all the archived classes from the preimage. We want to transfer all of these
46 // into the final image.
47 Array<Klass*>* _all_klasses;
48
49 // The classes who have resolved at least one indy CP entry during the training run.
50 // _indy_cp_indices[i] is a list of all resolved CP entries for _indy_klasses[i].
51 Array<InstanceKlass*>* _indy_klasses;
52 Array<Array<int>*>* _indy_cp_indices;
53
54 // The RefectionData for _reflect_klasses[i] should be initialized with _reflect_flags[i]
55 Array<InstanceKlass*>* _reflect_klasses;
56 Array<int>* _reflect_flags;
57
58 static GrowableArray<InstanceKlass*>* _tmp_reflect_klasses;
59 static GrowableArray<int>* _tmp_reflect_flags;
60
61 struct TmpDynamicProxyClassInfo {
62 int _loader_type;
63 int _access_flags;
64 const char* _proxy_name;
65 GrowableArray<Klass*>* _interfaces;
66 };
67
68 struct DynamicProxyClassInfo {
69 int _loader_type;
70 int _access_flags;
71 const char* _proxy_name;
72 Array<Klass*>* _interfaces;
73 };
74
75 Array<DynamicProxyClassInfo>* _dynamic_proxy_classes;
76
77 static GrowableArray<TmpDynamicProxyClassInfo>* _tmp_dynamic_proxy_classes;
78
79 FinalImageRecipes() : _indy_klasses(nullptr), _indy_cp_indices(nullptr),
80 _reflect_klasses(nullptr), _reflect_flags(nullptr),
81 _dynamic_proxy_classes(nullptr) {}
82
83
84 void* operator new(size_t size) throw();
85
86 // Called when dumping preimage
87 void record_recipes_impl();
88
89 // Called when dumping final image
90 void apply_recipes_impl(TRAPS);
91 void load_all_classes(TRAPS);
92 void apply_recipes_for_dynamic_proxies(TRAPS);
93 void apply_recipes_for_invokedynamic(TRAPS);
94 void apply_recipes_for_reflection_data(JavaThread* current);
95
96 public:
97 static void serialize(SerializeClosure* soc);
98
99 // Called when dumping preimage
100 static void add_dynamic_proxy_class(oop loader, const char* proxy_name, objArrayOop interfaces, int access_flags);
101 static void add_reflection_data_flags(InstanceKlass* ik, TRAPS);
102 static void record_recipes();
103
104 // Called when dumping final image
105 static void apply_recipes(TRAPS);
106 };
107
108 #endif // SHARE_CDS_FINALIMAGERECIPES_HPP