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 }
--- EOF ---