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 #include "precompiled.hpp" 26 #include "cds/metaspaceShared.hpp" 27 #include "classfile/stringTable.hpp" 28 #include "classfile/symbolTable.hpp" 29 #include "classfile/systemDictionary.hpp" 30 #include "code/SCCache.hpp" 31 #include "compiler/compiler_globals.hpp" 32 #include "gc/shared/collectedHeap.hpp" 33 #include "gc/shared/gcHeapSummary.hpp" 34 #include "interpreter/bytecodes.hpp" 35 #include "logging/logAsyncWriter.hpp" 36 #include "memory/universe.hpp" 37 #include "nmt/memTracker.hpp" 38 #include "oops/trainingData.hpp" 39 #include "prims/downcallLinker.hpp" 40 #include "prims/jvmtiExport.hpp" 41 #include "prims/methodHandles.hpp" 42 #include "runtime/atomic.hpp" 43 #include "runtime/continuation.hpp" 44 #include "runtime/flags/jvmFlag.hpp" 45 #include "runtime/globals.hpp" 46 #include "runtime/handles.inline.hpp" 47 #include "runtime/icache.hpp" 48 #include "runtime/init.hpp" 49 #include "runtime/safepoint.hpp" 50 #include "runtime/sharedRuntime.hpp" 51 #include "sanitizers/leak.hpp" 52 #include "utilities/macros.hpp" 53 #include "utilities/xmlstream.hpp" 54 #if INCLUDE_JVMCI 55 #include "jvmci/jvmci.hpp" 56 #endif 57 58 // Initialization done by VM thread in vm_init_globals() 59 void check_ThreadShadow(); 60 void eventlog_init(); 61 void mutex_init(); 62 void universe_oopstorage_init(); 63 void perfMemory_init(); 64 void SuspendibleThreadSet_init(); 65 void ExternalsRecorder_init(); // After mutex_init() and before CodeCache_init 66 67 // Initialization done by Java thread in init_globals() 68 void management_init(); 69 void bytecodes_init(); 70 void classLoader_init1(); 71 void compilationPolicy_init(); 72 void codeCache_init(); 73 void VM_Version_init(); 74 void initial_stubs_init(); 75 76 jint universe_init(); // depends on codeCache_init and initial_stubs_init 77 // depends on universe_init, must be before interpreter_init (currently only on SPARC) 78 void gc_barrier_stubs_init(); 79 void continuations_init(); // depends on flags (UseCompressedOops) and barrier sets 80 void continuation_stubs_init(); // depend on continuations_init 81 void interpreter_init_stub(); // before any methods loaded 82 void interpreter_init_code(); // after methods loaded, but before they are linked 83 void accessFlags_init(); 84 void InterfaceSupport_init(); 85 void universe2_init(); // dependent on codeCache_init and initial_stubs_init, loads primordial classes 86 void referenceProcessor_init(); 87 void jni_handles_init(); 88 void vmStructs_init() NOT_DEBUG_RETURN; 89 90 void vtableStubs_init(); 91 bool compilerOracle_init(); 92 bool compileBroker_init(); 93 void dependencyContext_init(); 94 void dependencies_init(); 95 96 // Initialization after compiler initialization 97 bool universe_post_init(); // must happen after compiler_init 98 void javaClasses_init(); // must happen after vtable initialization 99 void compiler_stubs_init(bool in_compiler_thread); // compiler's StubRoutines stubs 100 void final_stubs_init(); // final StubRoutines stubs 101 102 // Do not disable thread-local-storage, as it is important for some 103 // JNI/JVM/JVMTI functions and signal handlers to work properly 104 // during VM shutdown 105 void perfMemory_exit(); 106 void ostream_exit(); 107 108 void perf_jvm_init(); 109 110 void vm_init_globals() { 111 check_ThreadShadow(); 112 basic_types_init(); 113 eventlog_init(); 114 mutex_init(); 115 universe_oopstorage_init(); 116 perfMemory_init(); 117 SuspendibleThreadSet_init(); 118 ExternalsRecorder_init(); // After mutex_init() and before CodeCache_init 119 } 120 121 122 jint init_globals() { 123 perf_jvm_init(); 124 MethodHandles::init_counters(); 125 126 management_init(); 127 JvmtiExport::initialize_oop_storage(); 128 #if INCLUDE_JVMTI 129 if (AlwaysRecordEvolDependencies) { 130 JvmtiExport::set_can_hotswap_or_post_breakpoint(true); 131 JvmtiExport::set_all_dependencies_are_recorded(true); 132 } 133 #endif 134 bytecodes_init(); 135 classLoader_init1(); 136 compilationPolicy_init(); 137 MetaspaceShared::open_static_archive(); 138 codeCache_init(); 139 VM_Version_init(); // depends on codeCache_init for emitting code 140 initial_stubs_init(); 141 jint status = universe_init(); // dependent on codeCache_init and 142 // initial_stubs_init and metaspace_init. 143 if (status != JNI_OK) 144 return status; 145 SCCache::initialize(); 146 #ifdef LEAK_SANITIZER 147 { 148 // Register the Java heap with LSan. 149 VirtualSpaceSummary summary = Universe::heap()->create_heap_space_summary(); 150 LSAN_REGISTER_ROOT_REGION(summary.start(), summary.reserved_size()); 151 } 152 #endif // LEAK_SANITIZER 153 SCCache::init2(); // depends on universe_init 154 AsyncLogWriter::initialize(); 155 gc_barrier_stubs_init(); // depends on universe_init, must be before interpreter_init 156 continuations_init(); // must precede continuation stub generation 157 continuation_stubs_init(); // depends on continuations_init 158 interpreter_init_stub(); // before methods get loaded 159 accessFlags_init(); 160 InterfaceSupport_init(); 161 VMRegImpl::set_regName(); // need this before generate_stubs (for printing oop maps). 162 SharedRuntime::generate_stubs(); 163 return JNI_OK; 164 } 165 166 jint init_globals2() { 167 universe2_init(); // dependent on codeCache_init and initial_stubs_init 168 javaClasses_init(); // must happen after vtable initialization, before referenceProcessor_init 169 interpreter_init_code(); // after javaClasses_init and before any method gets linked 170 referenceProcessor_init(); 171 jni_handles_init(); 172 #if INCLUDE_VM_STRUCTS 173 vmStructs_init(); 174 #endif // INCLUDE_VM_STRUCTS 175 176 vtableStubs_init(); 177 if (!compilerOracle_init()) { 178 return JNI_EINVAL; 179 } 180 dependencyContext_init(); 181 dependencies_init(); 182 183 if (!compileBroker_init()) { 184 return JNI_EINVAL; 185 } 186 #if INCLUDE_JVMCI 187 if (EnableJVMCI) { 188 JVMCI::initialize_globals(); 189 } 190 #endif 191 192 if (TrainingData::have_data() || TrainingData::need_data()) { 193 TrainingData::initialize(); 194 } 195 196 if (!universe_post_init()) { 197 return JNI_ERR; 198 } 199 compiler_stubs_init(false /* in_compiler_thread */); // compiler's intrinsics stubs 200 final_stubs_init(); // final StubRoutines stubs 201 MethodHandles::generate_adapters(); 202 SystemDictionary::restore_archived_method_handle_intrinsics(); 203 204 // All the flags that get adjusted by VM_Version_init and os::init_2 205 // have been set so dump the flags now. 206 if (PrintFlagsFinal || PrintFlagsRanges) { 207 JVMFlag::printFlags(tty, false, PrintFlagsRanges); 208 } else if (RecordTraining && xtty != nullptr) { 209 JVMFlag::printFlags(xtty->log_only(), false, PrintFlagsRanges); 210 } 211 212 return JNI_OK; 213 } 214 215 216 void exit_globals() { 217 static bool destructorsCalled = false; 218 if (!destructorsCalled) { 219 destructorsCalled = true; 220 perfMemory_exit(); 221 SafepointTracing::statistics_exit_log(); 222 if (PrintStringTableStatistics) { 223 SymbolTable::dump(tty); 224 StringTable::dump(tty); 225 } 226 ostream_exit(); 227 #ifdef LEAK_SANITIZER 228 { 229 // Unregister the Java heap with LSan. 230 VirtualSpaceSummary summary = Universe::heap()->create_heap_space_summary(); 231 LSAN_UNREGISTER_ROOT_REGION(summary.start(), summary.reserved_size()); 232 } 233 #endif // LEAK_SANITIZER 234 } 235 } 236 237 static volatile bool _init_completed = false; 238 239 bool is_init_completed() { 240 return Atomic::load_acquire(&_init_completed); 241 } 242 243 void wait_init_completed() { 244 MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag); 245 while (!_init_completed) { 246 ml.wait(); 247 } 248 } 249 250 void set_init_completed() { 251 assert(Universe::is_fully_initialized(), "Should have completed initialization"); 252 MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag); 253 Atomic::release_store(&_init_completed, true); 254 ml.notify_all(); 255 }