1 /* 2 * Copyright (c) 1997, 2015, 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 "code/icBuffer.hpp" 28 #include "gc/shared/collectedHeap.hpp" 29 #include "interpreter/bytecodes.hpp" 30 #include "memory/universe.hpp" 31 #include "prims/methodHandles.hpp" 32 #include "runtime/handles.inline.hpp" 33 #include "runtime/icache.hpp" 34 #include "runtime/init.hpp" 35 #include "runtime/safepoint.hpp" 36 #include "runtime/sharedRuntime.hpp" 37 #include "services/memTracker.hpp" 38 #include "utilities/macros.hpp" 39 40 41 // Initialization done by VM thread in vm_init_globals() 42 void check_ThreadShadow(); 43 void eventlog_init(); 44 void mutex_init(); 45 void chunkpool_init(); 46 void perfMemory_init(); 47 48 // Initialization done by Java thread in init_globals() 49 void management_init(); 50 void bytecodes_init(); 51 void classLoader_init(); 52 void compilationPolicy_init(); 53 void codeCache_init(); 54 void VM_Version_init(); 55 void os_init_globals(); // depends on VM_Version_init, before universe_init 56 void stubRoutines_init1(); 57 jint universe_init(); // depends on codeCache_init and stubRoutines_init 58 void interpreter_init(); // before any methods loaded 59 void invocationCounter_init(); // before any methods loaded 60 void marksweep_init(); 61 void accessFlags_init(); 62 void templateTable_init(); 63 void InterfaceSupport_init(); 64 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes 65 void referenceProcessor_init(); 66 void jni_handles_init(); 67 void vmStructs_init(); 68 69 void vtableStubs_init(); 70 void InlineCacheBuffer_init(); 71 void compilerOracle_init(); 72 void compileBroker_init(); 73 74 // Initialization after compiler initialization 75 bool universe_post_init(); // must happen after compiler_init 76 void javaClasses_init(); // must happen after vtable initialization 77 void stubRoutines_init2(); // note: StubRoutines need 2-phase init 78 79 // Do not disable thread-local-storage, as it is important for some 80 // JNI/JVM/JVMTI functions and signal handlers to work properly 81 // during VM shutdown 82 void perfMemory_exit(); 83 void ostream_exit(); 84 85 void vm_init_globals() { 86 check_ThreadShadow(); 87 basic_types_init(); 88 eventlog_init(); 89 mutex_init(); 90 chunkpool_init(); 91 perfMemory_init(); 92 } 93 94 95 jint init_globals() { 96 HandleMark hm; 97 management_init(); 98 bytecodes_init(); 99 classLoader_init(); 100 compilationPolicy_init(); 101 codeCache_init(); 102 VM_Version_init(); 103 os_init_globals(); 104 stubRoutines_init1(); 105 jint status = universe_init(); // dependent on codeCache_init and 106 // stubRoutines_init1 and metaspace_init. 107 if (status != JNI_OK) 108 return status; 109 110 interpreter_init(); // before any methods loaded 111 invocationCounter_init(); // before any methods loaded 112 marksweep_init(); 113 accessFlags_init(); 114 templateTable_init(); 115 InterfaceSupport_init(); 116 SharedRuntime::generate_stubs(); 117 universe2_init(); // dependent on codeCache_init and stubRoutines_init1 118 referenceProcessor_init(); 119 jni_handles_init(); 120 #if INCLUDE_VM_STRUCTS 121 vmStructs_init(); 122 #endif // INCLUDE_VM_STRUCTS 123 124 vtableStubs_init(); 125 InlineCacheBuffer_init(); 126 compilerOracle_init(); 127 compileBroker_init(); 128 VMRegImpl::set_regName(); 129 130 if (!universe_post_init()) { 131 return JNI_ERR; 132 } 133 javaClasses_init(); // must happen after vtable initialization 134 stubRoutines_init2(); // note: StubRoutines need 2-phase init 135 136 #if INCLUDE_NMT 137 // Solaris stack is walkable only after stubRoutines are set up. 138 // On Other platforms, the stack is always walkable. 139 NMT_stack_walkable = true; 140 #endif // INCLUDE_NMT 141 142 // All the flags that get adjusted by VM_Version_init and os::init_2 143 // have been set so dump the flags now. 144 if (PrintFlagsFinal) { 145 CommandLineFlags::printFlags(tty, false); 146 } 147 148 return JNI_OK; 149 } 150 151 152 void exit_globals() { 153 static bool destructorsCalled = false; 154 if (!destructorsCalled) { 155 destructorsCalled = true; 156 perfMemory_exit(); 157 if (PrintSafepointStatistics) { 158 // Print the collected safepoint statistics. 159 SafepointSynchronize::print_stat_on_exit(); 160 } 161 if (PrintStringTableStatistics) { 162 SymbolTable::dump(tty); 163 StringTable::dump(tty); 164 } 165 ostream_exit(); 166 } 167 } 168 169 170 static bool _init_completed = false; 171 172 bool is_init_completed() { 173 return _init_completed; 174 } 175 176 177 void set_init_completed() { 178 assert(Universe::is_fully_initialized(), "Should have completed initialization"); 179 _init_completed = true; 180 }