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 }
--- EOF ---