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