1 /* 2 * Copyright (c) 1997, 2019, 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 "classfile/stringTable.hpp" 27 #include "classfile/symbolTable.hpp" 28 #include "code/icBuffer.hpp" 29 #include "gc/shared/collectedHeap.hpp" 30 #if INCLUDE_JVMCI 31 #include "jvmci/jvmci.hpp" 32 #endif 33 #include "interpreter/bytecodes.hpp" 34 #include "logging/log.hpp" 35 #include "logging/logTag.hpp" 36 #include "memory/universe.hpp" 37 #include "prims/methodHandles.hpp" 38 #include "runtime/flags/jvmFlag.hpp" 39 #include "runtime/handles.inline.hpp" 40 #include "runtime/mutexLocker.inline.hpp" 41 #include "runtime/icache.hpp" 42 #include "runtime/init.hpp" 43 #include "runtime/orderAccess.hpp" 44 #include "runtime/safepoint.hpp" 45 #include "runtime/sharedRuntime.hpp" 46 #include "services/memTracker.hpp" 47 #include "utilities/macros.hpp" 48 49 50 // Initialization done by VM thread in vm_init_globals() 51 void check_ThreadShadow(); 52 void eventlog_init(); 53 void mutex_init(); 54 void oopstorage_init(); 55 void chunkpool_init(); 56 void perfMemory_init(); 57 void SuspendibleThreadSet_init(); 58 59 // Initialization done by Java thread in init_globals() 60 void management_init(); 61 void bytecodes_init(); 62 void classLoader_init1(); 63 void compilationPolicy_init(); 64 void codeCache_init(); 65 void VM_Version_init(); 66 void stubRoutines_init1(); 67 jint universe_init(); // depends on codeCache_init and stubRoutines_init 68 // depends on universe_init, must be before interpreter_init (currently only on SPARC) 69 void gc_barrier_stubs_init(); 70 void interpreter_init(); // before any methods loaded 71 void invocationCounter_init(); // before any methods loaded 72 void accessFlags_init(); 73 void templateTable_init(); 74 void InterfaceSupport_init(); 75 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes 76 void referenceProcessor_init(); 77 void jni_handles_init(); 78 void vmStructs_init(); 79 80 void vtableStubs_init(); 81 void InlineCacheBuffer_init(); 82 void compilerOracle_init(); 83 bool compileBroker_init(); 84 void dependencyContext_init(); 85 86 // Initialization after compiler initialization 87 bool universe_post_init(); // must happen after compiler_init 88 void javaClasses_init(); // must happen after vtable initialization 89 void stubRoutines_init2(); // note: StubRoutines need 2-phase init 90 91 // Do not disable thread-local-storage, as it is important for some 92 // JNI/JVM/JVMTI functions and signal handlers to work properly 93 // during VM shutdown 94 void perfMemory_exit(); 95 void ostream_exit(); 96 97 void vm_init_globals() { 98 check_ThreadShadow(); 99 basic_types_init(); 100 eventlog_init(); 101 mutex_init(); 102 oopstorage_init(); 103 chunkpool_init(); 104 perfMemory_init(); 105 SuspendibleThreadSet_init(); 106 } 107 108 109 jint init_globals() { 110 HandleMark hm; 111 management_init(); 112 bytecodes_init(); 113 classLoader_init1(); 114 compilationPolicy_init(); 115 codeCache_init(); 116 VM_Version_init(); 117 stubRoutines_init1(); 118 jint status = universe_init(); // dependent on codeCache_init and 119 // stubRoutines_init1 and metaspace_init. 120 if (status != JNI_OK) 121 return status; 122 123 gc_barrier_stubs_init(); // depends on universe_init, must be before interpreter_init 124 interpreter_init(); // before any methods loaded 125 invocationCounter_init(); // before any methods loaded 126 accessFlags_init(); 127 templateTable_init(); 128 InterfaceSupport_init(); 129 VMRegImpl::set_regName(); // need this before generate_stubs (for printing oop maps). 130 SharedRuntime::generate_stubs(); 131 universe2_init(); // dependent on codeCache_init and stubRoutines_init1 132 javaClasses_init();// must happen after vtable initialization, before referenceProcessor_init 133 referenceProcessor_init(); 134 jni_handles_init(); 135 #if INCLUDE_VM_STRUCTS 136 vmStructs_init(); 137 #endif // INCLUDE_VM_STRUCTS 138 139 vtableStubs_init(); 140 InlineCacheBuffer_init(); 141 compilerOracle_init(); 142 dependencyContext_init(); 143 144 if (!compileBroker_init()) { 145 return JNI_EINVAL; 146 } 147 #if INCLUDE_JVMCI 148 if (EnableJVMCI) { 149 JVMCI::initialize_globals(); 150 } 151 #endif 152 153 if (!universe_post_init()) { 154 return JNI_ERR; 155 } 156 stubRoutines_init2(); // note: StubRoutines need 2-phase init 157 MethodHandles::generate_adapters(); 158 159 #if INCLUDE_NMT 160 // Solaris stack is walkable only after stubRoutines are set up. 161 // On Other platforms, the stack is always walkable. 162 NMT_stack_walkable = true; 163 #endif // INCLUDE_NMT 164 165 // All the flags that get adjusted by VM_Version_init and os::init_2 166 // have been set so dump the flags now. 167 if (PrintFlagsFinal || PrintFlagsRanges) { 168 JVMFlag::printFlags(tty, false, PrintFlagsRanges); 169 } 170 171 return JNI_OK; 172 } 173 174 175 void exit_globals() { 176 static bool destructorsCalled = false; 177 if (!destructorsCalled) { 178 destructorsCalled = true; 179 if (log_is_enabled(Info, monitorinflation)) { 180 // The ObjectMonitor subsystem uses perf counters so 181 // do this before perfMemory_exit(). 182 // ObjectSynchronizer::finish_deflate_idle_monitors()'s call 183 // to audit_and_print_stats() is done at the Debug level. 184 ObjectSynchronizer::audit_and_print_stats(true /* on_exit */); 185 } 186 perfMemory_exit(); 187 SafepointTracing::statistics_exit_log(); 188 if (PrintStringTableStatistics) { 189 SymbolTable::dump(tty); 190 StringTable::dump(tty); 191 } 192 ostream_exit(); 193 } 194 } 195 196 static volatile bool _init_completed = false; 197 198 bool is_init_completed() { 199 return OrderAccess::load_acquire(&_init_completed); 200 } 201 202 void wait_init_completed() { 203 MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag); 204 while (!_init_completed) { 205 ml.wait(); 206 } 207 } 208 209 void set_init_completed() { 210 assert(Universe::is_fully_initialized(), "Should have completed initialization"); 211 MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag); 212 OrderAccess::release_store(&_init_completed, true); 213 ml.notify_all(); 214 }