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/globals.hpp" 33 #include "runtime/handles.inline.hpp" 34 #include "runtime/icache.hpp" 35 #include "runtime/init.hpp" 36 #include "runtime/safepoint.hpp" 37 #include "runtime/sharedRuntime.hpp" 38 #include "services/memTracker.hpp" 39 #include "utilities/macros.hpp" 40 41 42 // Initialization done by VM thread in vm_init_globals() 43 void check_ThreadShadow(); 44 void eventlog_init(); 45 void mutex_init(); 46 void chunkpool_init(); 47 void perfMemory_init(); 48 49 // Initialization done by Java thread in init_globals() 50 void management_init(); 51 void bytecodes_init(); 52 void classLoader_init(); 53 void compilationPolicy_init(); 54 void codeCache_init(); 55 void VM_Version_init(); 56 void os_init_globals(); // depends on VM_Version_init, before universe_init 57 void stubRoutines_init1(); 58 jint universe_init(); // depends on codeCache_init and stubRoutines_init 59 void interpreter_init(); // before any methods loaded 60 void invocationCounter_init(); // before any methods loaded 61 void marksweep_init(); 62 void accessFlags_init(); 63 void templateTable_init(); 64 void InterfaceSupport_init(); 65 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes 66 void referenceProcessor_init(); 67 void jni_handles_init(); 68 void vmStructs_init(); 69 70 void vtableStubs_init(); 71 void InlineCacheBuffer_init(); 72 void compilerOracle_init(); 73 void compileBroker_init(); 74 75 // Initialization after compiler initialization 76 bool universe_post_init(); // must happen after compiler_init 77 void javaClasses_init(); // must happen after vtable initialization 78 void stubRoutines_init2(); // note: StubRoutines need 2-phase init 79 80 // Do not disable thread-local-storage, as it is important for some 81 // JNI/JVM/JVMTI functions and signal handlers to work properly 82 // during VM shutdown 83 void perfMemory_exit(); 84 void ostream_exit(); 85 86 void vm_init_globals() { 87 check_ThreadShadow(); 88 basic_types_init(); 89 eventlog_init(); 90 mutex_init(); 91 chunkpool_init(); 92 perfMemory_init(); 93 } 94 95 96 jint init_globals() { 97 HandleMark hm; 98 management_init(); 99 bytecodes_init(); 100 classLoader_init(); 101 compilationPolicy_init(); 102 codeCache_init(); 103 VM_Version_init(); 104 os_init_globals(); 105 stubRoutines_init1(); 106 jint status = universe_init(); // dependent on codeCache_init and 107 // stubRoutines_init1 and metaspace_init. 108 if (status != JNI_OK) 109 return status; 110 111 interpreter_init(); // before any methods loaded 112 invocationCounter_init(); // before any methods loaded 113 marksweep_init(); 114 accessFlags_init(); 115 templateTable_init(); 116 InterfaceSupport_init(); 117 SharedRuntime::generate_stubs(); 118 universe2_init(); // dependent on codeCache_init and stubRoutines_init1 119 referenceProcessor_init(); 120 jni_handles_init(); 121 #if INCLUDE_VM_STRUCTS 122 vmStructs_init(); 123 #endif // INCLUDE_VM_STRUCTS 124 125 vtableStubs_init(); 126 InlineCacheBuffer_init(); 127 compilerOracle_init(); 128 compileBroker_init(); 129 VMRegImpl::set_regName(); 130 131 if (!universe_post_init()) { 132 return JNI_ERR; 133 } 134 javaClasses_init(); // must happen after vtable initialization 135 stubRoutines_init2(); // note: StubRoutines need 2-phase init 136 137 #if INCLUDE_NMT 138 // Solaris stack is walkable only after stubRoutines are set up. 139 // On Other platforms, the stack is always walkable. 140 NMT_stack_walkable = true; 141 #endif // INCLUDE_NMT 142 143 // All the flags that get adjusted by VM_Version_init and os::init_2 144 // have been set so dump the flags now. 145 if (PrintFlagsFinal || PrintFlagsRanges) { 146 CommandLineFlags::printFlags(tty, false, PrintFlagsRanges); 147 } 148 149 return JNI_OK; 150 } 151 152 153 void exit_globals() { 154 static bool destructorsCalled = false; 155 if (!destructorsCalled) { 156 destructorsCalled = true; 157 perfMemory_exit(); 158 if (PrintSafepointStatistics) { 159 // Print the collected safepoint statistics. 160 SafepointSynchronize::print_stat_on_exit(); 161 } 162 if (PrintStringTableStatistics) { 163 SymbolTable::dump(tty); 164 StringTable::dump(tty); 165 } 166 ostream_exit(); 167 } 168 } 169 170 171 static bool _init_completed = false; 172 173 bool is_init_completed() { 174 return _init_completed; 175 } 176 177 178 void set_init_completed() { 179 assert(Universe::is_fully_initialized(), "Should have completed initialization"); 180 _init_completed = true; 181 }