1 /*
2 * Copyright (c) 2022, 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.
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24
25 #ifndef SHARE_CDS_CDS_GLOBALS_HPP
26 #define SHARE_CDS_CDS_GLOBALS_HPP
27
28 #include "runtime/globals_shared.hpp"
29
30 //
31 // Defines all globals flags used by CDS.
32 //
33
34 #define CDS_FLAGS(develop, \
35 develop_pd, \
36 product, \
37 product_pd, \
38 range, \
39 constraint) \
40 /* Shared spaces */ \
41 \
42 product(bool, VerifySharedSpaces, false, \
43 "Verify integrity of shared spaces") \
44 \
45 product(bool, RecordDynamicDumpInfo, false, \
46 "Record class info for jcmd VM.cds dynamic_dump") \
47 \
48 product(bool, AutoCreateSharedArchive, false, \
49 "Create shared archive at exit if cds mapping failed") \
50 \
51 product(bool, PrintSharedArchiveAndExit, false, \
52 "Print shared archive file contents") \
53 \
54 product(size_t, SharedBaseAddress, LP64_ONLY(32*G) \
55 NOT_LP64(LINUX_ONLY(2*G) NOT_LINUX(0)), \
56 "Address to allocate shared memory region for class data") \
57 range(0, SIZE_MAX) \
58 \
59 product(ccstr, SharedArchiveConfigFile, nullptr, \
60 "Data to add to the CDS archive file") \
61 \
62 product(uint, SharedSymbolTableBucketSize, 4, \
63 "Average number of symbols per bucket in shared table") \
64 range(2, 246) \
65 \
66 product(bool, AllowArchivingWithJavaAgent, false, DIAGNOSTIC, \
67 "Allow Java agent to be run with CDS dumping") \
68 \
69 develop(ccstr, ArchiveHeapTestClass, nullptr, \
70 "For JVM internal testing only. The static field named " \
71 "\"archivedObjects\" of the specified class is stored in the " \
72 "CDS archive heap") \
73 \
74 develop(ccstr, AOTInitTestClass, nullptr, \
75 "For JVM internal testing only. The specified class is stored " \
76 "in the initialized state in the AOT cache ") \
77 \
78 product(ccstr, DumpLoadedClassList, nullptr, \
79 "Dump the names all loaded classes, that could be stored into " \
80 "the CDS archive, in the specified file") \
81 \
82 product(ccstr, SharedClassListFile, nullptr, \
83 "Override the default CDS class list") \
84 \
85 product(ccstr, SharedArchiveFile, nullptr, \
86 "Override the default location of the CDS archive file") \
87 \
88 product(ccstr, ArchiveClassesAtExit, nullptr, \
89 "The path and name of the dynamic archive file") \
90 \
91 product(ccstr, ExtraSharedClassListFile, nullptr, \
92 "Extra classlist for building the CDS archive file") \
93 \
94 product(int, ArchiveRelocationMode, 1, DIAGNOSTIC, \
95 "(0) first map at preferred address, and if " \
96 "unsuccessful, map at alternative address; " \
97 "(1) always map at alternative address (default); " \
98 "(2) always map at preferred address, and if unsuccessful, " \
99 "do not map the archive") \
100 range(0, 2) \
101 \
102 /*========== New "AOT" flags =========================================*/ \
103 /* The following 3 flags are aliases of -Xshare:dump, */ \
104 /* -XX:SharedArchiveFile=..., etc. See CDSConfig::check_flag_aliases()*/ \
105 \
106 product(ccstr, AOTMode, nullptr, \
107 "Specifies how AOTCache should be created or used. Valid values " \
108 "are: off, record, create, auto, on; the default is auto") \
109 constraint(AOTModeConstraintFunc, AtParse) \
110 \
111 product(ccstr, AOTConfiguration, nullptr, \
112 "The configuration file written by -XX:AOTMode=record, and " \
113 "loaded by -XX:AOTMode=create. This file contains profiling data "\
114 "for deciding what contents should be added to AOTCache. ") \
115 \
116 product(ccstr, AOTCache, nullptr, \
117 "Cache for improving start up and warm up") \
118 \
119 product(bool, AOTInvokeDynamicLinking, false, DIAGNOSTIC, \
120 "AOT-link JVM_CONSTANT_InvokeDynamic entries in cached " \
121 "ConstantPools") \
122 \
123 product(bool, AOTClassLinking, false, \
124 "Load/link all archived classes for the boot/platform/app " \
125 "loaders before application main") \
126 \
127 product(bool, AOTCacheParallelRelocation, true, DIAGNOSTIC, \
128 "Use parallel relocation code to speed up startup.") \
129 \
130 // end of CDS_FLAGS
131
132 DECLARE_FLAGS(CDS_FLAGS)
133
134 #endif // SHARE_CDS_CDS_GLOBALS_HPP