1 /* 2 * Copyright (c) 1997, 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 #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 66 // Initialization done by Java thread in init_globals() 67 void management_init(); 68 void bytecodes_init(); 69 void classLoader_init1(); 70 void compilationPolicy_init(); 71 void codeCache_init(); 72 void VM_Version_init(); 73 void initial_stubs_init(); 74 75 jint universe_init(); // depends on codeCache_init and initial_stubs_init 76 // depends on universe_init, must be before interpreter_init (currently only on SPARC) 77 void gc_barrier_stubs_init(); 78 void continuations_init(); // depends on flags (UseCompressedOops) and barrier sets 79 void continuation_stubs_init(); // depend on continuations_init 80 void interpreter_init_stub(); // before any methods loaded 81 void interpreter_init_code(); // after methods loaded, but before they are linked 82 void accessFlags_init(); 83 void InterfaceSupport_init(); 84 void universe2_init(); // dependent on codeCache_init and initial_stubs_init, loads primordial classes 85 void referenceProcessor_init(); 86 void jni_handles_init(); 87 void vmStructs_init() NOT_DEBUG_RETURN; 88 89 void vtableStubs_init(); 90 bool compilerOracle_init(); 91 bool compileBroker_init(); 92 void dependencyContext_init(); 93 void dependencies_init(); 94 95 // Initialization after compiler initialization 96 bool universe_post_init(); // must happen after compiler_init 97 void javaClasses_init(); // must happen after vtable initialization 98 void compiler_stubs_init(bool in_compiler_thread); // compiler's StubRoutines stubs 99 void final_stubs_init(); // final StubRoutines stubs 100 101 // Do not disable thread-local-storage, as it is important for some 102 // JNI/JVM/JVMTI functions and signal handlers to work properly 103 // during VM shutdown 104 void perfMemory_exit(); 105 void ostream_exit(); 106 107 void perf_jvm_init(); 108 109 void vm_init_globals() { 110 check_ThreadShadow(); 111 basic_types_init(); 112 eventlog_init(); 113 mutex_init(); 114 universe_oopstorage_init(); 115 perfMemory_init(); 116 SuspendibleThreadSet_init(); 117 } 118 119 120 jint init_globals() { 121 perf_jvm_init(); 122 MethodHandles::init_counters(); 123 124 management_init(); 125 JvmtiExport::initialize_oop_storage(); 126 #if INCLUDE_JVMTI 127 if (AlwaysRecordEvolDependencies) { 128 JvmtiExport::set_can_hotswap_or_post_breakpoint(true); 129 JvmtiExport::set_all_dependencies_are_recorded(true); 130 } 131 #endif 132 bytecodes_init(); 133 classLoader_init1(); 134 compilationPolicy_init(); 135 MetaspaceShared::open_static_archive(); 136 codeCache_init(); 137 VM_Version_init(); // depends on codeCache_init for emitting code 138 initial_stubs_init(); 139 jint status = universe_init(); // dependent on codeCache_init and 140 // initial_stubs_init and metaspace_init. 141 if (status != JNI_OK) 142 return status; 143 SCCache::initialize(); 144 #ifdef LEAK_SANITIZER 145 { 146 // Register the Java heap with LSan. 147 VirtualSpaceSummary summary = Universe::heap()->create_heap_space_summary(); 148 LSAN_REGISTER_ROOT_REGION(summary.start(), summary.reserved_size()); 149 } 150 #endif // LEAK_SANITIZER 151 SCCache::init2(); // depends on universe_init 152 AsyncLogWriter::initialize(); 153 gc_barrier_stubs_init(); // depends on universe_init, must be before interpreter_init 154 continuations_init(); // must precede continuation stub generation 155 continuation_stubs_init(); // depends on continuations_init 156 interpreter_init_stub(); // before methods get loaded 157 accessFlags_init(); 158 InterfaceSupport_init(); 159 VMRegImpl::set_regName(); // need this before generate_stubs (for printing oop maps). 160 SharedRuntime::generate_stubs(); 161 return JNI_OK; 162 } 163 164 jint init_globals2() { 165 universe2_init(); // dependent on codeCache_init and initial_stubs_init 166 javaClasses_init(); // must happen after vtable initialization, before referenceProcessor_init 167 interpreter_init_code(); // after javaClasses_init and before any method gets linked 168 referenceProcessor_init(); 169 jni_handles_init(); 170 #if INCLUDE_VM_STRUCTS 171 vmStructs_init(); 172 #endif // INCLUDE_VM_STRUCTS 173 174 vtableStubs_init(); 175 if (!compilerOracle_init()) { 176 return JNI_EINVAL; 177 } 178 dependencyContext_init(); 179 dependencies_init(); 180 181 if (!compileBroker_init()) { 182 return JNI_EINVAL; 183 } 184 #if INCLUDE_JVMCI 185 if (EnableJVMCI) { 186 JVMCI::initialize_globals(); 187 } 188 #endif 189 190 if (TrainingData::have_data() || TrainingData::need_data()) { 191 TrainingData::initialize(); 192 } 193 194 if (!universe_post_init()) { 195 return JNI_ERR; 196 } 197 compiler_stubs_init(false /* in_compiler_thread */); // compiler's intrinsics stubs 198 final_stubs_init(); // final StubRoutines stubs 199 MethodHandles::generate_adapters(); 200 SystemDictionary::restore_archived_method_handle_intrinsics(); 201 202 // All the flags that get adjusted by VM_Version_init and os::init_2 203 // have been set so dump the flags now. 204 if (PrintFlagsFinal || PrintFlagsRanges) { 205 JVMFlag::printFlags(tty, false, PrintFlagsRanges); 206 } else if (RecordTraining && xtty != nullptr) { 207 JVMFlag::printFlags(xtty->log_only(), false, PrintFlagsRanges); 208 } 209 210 return JNI_OK; 211 } 212 213 214 void exit_globals() { 215 static bool destructorsCalled = false; 216 if (!destructorsCalled) { 217 destructorsCalled = true; 218 perfMemory_exit(); 219 SafepointTracing::statistics_exit_log(); 220 if (PrintStringTableStatistics) { 221 SymbolTable::dump(tty); 222 StringTable::dump(tty); 223 } 224 ostream_exit(); 225 #ifdef LEAK_SANITIZER 226 { 227 // Unregister the Java heap with LSan. 228 VirtualSpaceSummary summary = Universe::heap()->create_heap_space_summary(); 229 LSAN_UNREGISTER_ROOT_REGION(summary.start(), summary.reserved_size()); 230 } 231 #endif // LEAK_SANITIZER 232 } 233 } 234 235 static volatile bool _init_completed = false; 236 237 bool is_init_completed() { 238 return Atomic::load_acquire(&_init_completed); 239 } 240 241 void wait_init_completed() { 242 MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag); 243 while (!_init_completed) { 244 ml.wait(); 245 } 246 } 247 248 void set_init_completed() { 249 assert(Universe::is_fully_initialized(), "Should have completed initialization"); 250 MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag); 251 Atomic::release_store(&_init_completed, true); 252 ml.notify_all(); 253 }