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