1 /* 2 * Copyright (c) 2023, 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 #ifndef SHARE_CDS_CDSCONFIG_HPP 26 #define SHARE_CDS_CDSCONFIG_HPP 27 28 #include "memory/allStatic.hpp" 29 #include "utilities/globalDefinitions.hpp" 30 #include "utilities/macros.hpp" 31 32 class CDSConfig : public AllStatic { 33 #if INCLUDE_CDS 34 static bool _is_dumping_static_archive; 35 static bool _is_dumping_dynamic_archive; 36 static bool _dumping_full_module_graph_disabled; 37 static bool _loading_full_module_graph_disabled; 38 39 static char* _default_archive_path; 40 static char* _static_archive_path; 41 static char* _dynamic_archive_path; 42 #endif 43 44 static void extract_shared_archive_paths(const char* archive_path, 45 char** base_archive_path, 46 char** top_archive_path); 47 static void init_shared_archive_paths(); 48 static bool check_unsupported_cds_runtime_properties(); 49 50 public: 51 // Initialization and command-line checking 52 static void initialize() NOT_CDS_RETURN; 53 static void check_system_property(const char* key, const char* value) NOT_CDS_RETURN; 54 static void check_unsupported_dumping_properties() NOT_CDS_RETURN; 55 static bool check_vm_args_consistency(bool patch_mod_javabase, bool mode_flag_cmd_line) NOT_CDS_RETURN_(true); 56 57 // Basic CDS features 58 static bool is_dumping_archive() { return is_dumping_static_archive() || is_dumping_dynamic_archive(); } 59 static bool is_dumping_static_archive() { return CDS_ONLY(_is_dumping_static_archive) NOT_CDS(false); } 60 static void enable_dumping_static_archive() { CDS_ONLY(_is_dumping_static_archive = true); } 61 static bool is_dumping_dynamic_archive() { return CDS_ONLY(_is_dumping_dynamic_archive) NOT_CDS(false); } 62 static void enable_dumping_dynamic_archive() { CDS_ONLY(_is_dumping_dynamic_archive = true); } 63 static void disable_dumping_dynamic_archive() { CDS_ONLY(_is_dumping_dynamic_archive = false); } 64 65 // Archive paths 66 // Points to the classes.jsa in $JAVA_HOME 67 static char* default_archive_path() NOT_CDS_RETURN_(nullptr); 68 // The actual static archive (if any) selected at runtime 69 static const char* static_archive_path() { return CDS_ONLY(_static_archive_path) NOT_CDS(nullptr); } 70 // The actual dynamic archive (if any) selected at runtime 71 static const char* dynamic_archive_path() { return CDS_ONLY(_dynamic_archive_path) NOT_CDS(nullptr); } 72 73 static int num_archives(const char* archive_path) NOT_CDS_RETURN_(0); 74 75 76 // CDS archived heap 77 static bool is_dumping_heap() NOT_CDS_JAVA_HEAP_RETURN_(false); 78 static void disable_dumping_full_module_graph(const char* reason = nullptr) NOT_CDS_JAVA_HEAP_RETURN; 79 static bool is_dumping_full_module_graph() NOT_CDS_JAVA_HEAP_RETURN_(false); 80 static void disable_loading_full_module_graph(const char* reason = nullptr) NOT_CDS_JAVA_HEAP_RETURN; 81 static bool is_loading_full_module_graph() NOT_CDS_JAVA_HEAP_RETURN_(false); 82 83 }; 84 85 #endif // SHARE_CDS_CDSCONFIG_HPP