1 /* 2 * Copyright (c) 1997, 2024, 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_RUNTIME_JAVA_HPP 26 #define SHARE_RUNTIME_JAVA_HPP 27 28 #include "runtime/os.hpp" 29 #include "utilities/globalDefinitions.hpp" 30 31 class Handle; 32 class JavaThread; 33 class Symbol; 34 35 // Execute code before all handles are released and thread is killed; prologue to vm_exit 36 extern void before_exit(JavaThread * thread, bool halt = false); 37 38 // Forced VM exit (i.e, internal error or JVM_Exit) 39 extern void vm_exit(int code); 40 41 // Wrapper for ::exit() 42 extern void vm_direct_exit(int code); 43 extern void vm_direct_exit(int code, const char* message); 44 45 // Shutdown the VM but do not exit the process 46 extern void vm_shutdown(); 47 // Shutdown the VM and abort the process 48 extern void vm_abort(bool dump_core=true); 49 50 // Trigger any necessary notification of the VM being shutdown 51 extern void notify_vm_shutdown(); 52 53 // VM exit if error occurs during initialization of VM 54 extern void vm_exit_during_initialization(); 55 extern void vm_exit_during_initialization(Handle exception); 56 extern void vm_exit_during_initialization(Symbol* exception_name, const char* message); 57 extern void vm_exit_during_initialization(const char* error, const char* message = nullptr); 58 extern void vm_shutdown_during_initialization(const char* error, const char* message = nullptr); 59 60 extern void vm_exit_during_cds_dumping(const char* error, const char* message = nullptr); 61 62 extern void perf_jvm_print_on(outputStream* st); 63 extern void perf_deoptimization_print_on(outputStream* st); 64 65 extern void log_vm_init_stats(bool use_tty); 66 67 // This is defined in linkType.cpp due to linking restraints 68 extern bool is_vm_statically_linked(); 69 70 /** 71 * With the integration of the changes to handle the version string 72 * as defined by JEP-223, most of the code related to handle the version 73 * string prior to JDK 1.6 was removed (partial initialization) 74 */ 75 class JDK_Version { 76 friend class VMStructs; 77 friend class Universe; 78 friend void JDK_Version_init(); 79 private: 80 81 static JDK_Version _current; 82 static const char* _java_version; 83 static const char* _runtime_name; 84 static const char* _runtime_version; 85 static const char* _runtime_vendor_version; 86 static const char* _runtime_vendor_vm_bug_url; 87 88 int _major; 89 int _minor; 90 int _security; 91 int _patch; 92 int _build; 93 94 bool is_valid() const { 95 return (_major != 0); 96 } 97 98 // initializes or partially initializes the _current static field 99 static void initialize(); 100 101 public: 102 103 JDK_Version() : 104 _major(0), _minor(0), _security(0), _patch(0), _build(0) 105 {} 106 107 JDK_Version(int major, int minor = 0, int security = 0, 108 int patch = 0, int build = 0) : 109 _major(major), _minor(minor), _security(security), _patch(patch), _build(build) 110 {} 111 112 // Returns the current running JDK version 113 static JDK_Version current() { return _current; } 114 115 // Factory methods for convenience 116 static JDK_Version jdk(int m) { 117 return JDK_Version(m); 118 } 119 120 static JDK_Version undefined() { 121 return JDK_Version(0); 122 } 123 124 bool is_undefined() const { 125 return _major == 0; 126 } 127 128 int major_version() const { return _major; } 129 int minor_version() const { return _minor; } 130 int security_version() const { return _security; } 131 int patch_version() const { return _patch; } 132 int build_number() const { return _build; } 133 134 // Performs a full ordering comparison using all fields (patch, build, etc.) 135 int compare(const JDK_Version& other) const; 136 137 void to_string(char* buffer, size_t buflen) const; 138 139 static const char* java_version() { 140 return _java_version; 141 } 142 static void set_java_version(const char* version) { 143 _java_version = os::strdup(version); 144 } 145 146 static const char* runtime_name() { 147 return _runtime_name; 148 } 149 static void set_runtime_name(const char* name) { 150 _runtime_name = os::strdup(name); 151 } 152 153 static const char* runtime_version() { 154 return _runtime_version; 155 } 156 static void set_runtime_version(const char* version) { 157 _runtime_version = os::strdup(version); 158 } 159 160 static const char* runtime_vendor_version() { 161 return _runtime_vendor_version; 162 } 163 static void set_runtime_vendor_version(const char* vendor_version) { 164 _runtime_vendor_version = os::strdup(vendor_version); 165 } 166 167 static const char* runtime_vendor_vm_bug_url() { 168 return _runtime_vendor_vm_bug_url; 169 } 170 static void set_runtime_vendor_vm_bug_url(const char* vendor_vm_bug_url) { 171 _runtime_vendor_vm_bug_url = os::strdup(vendor_vm_bug_url); 172 } 173 174 }; 175 176 #endif // SHARE_RUNTIME_JAVA_HPP