1 /*
   2  * Copyright (c) 1997, 2016, 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/codeCacheExtensions.hpp"
  29 #include "code/icBuffer.hpp"
  30 #include "gc/shared/collectedHeap.hpp"
  31 #include "interpreter/bytecodes.hpp"
  32 #include "memory/universe.hpp"
  33 #include "prims/methodHandles.hpp"
  34 #include "runtime/globals.hpp"
  35 #include "runtime/handles.inline.hpp"
  36 #include "runtime/icache.hpp"
  37 #include "runtime/init.hpp"
  38 #include "runtime/safepoint.hpp"
  39 #include "runtime/sharedRuntime.hpp"
  40 #include "services/memTracker.hpp"
  41 #include "utilities/macros.hpp"
  42 
  43 
  44 // Initialization done by VM thread in vm_init_globals()
  45 void check_ThreadShadow();
  46 void eventlog_init();
  47 void mutex_init();
  48 void chunkpool_init();
  49 void perfMemory_init();
  50 void SuspendibleThreadSet_init() NOT_ALL_GCS_RETURN;
  51 
  52 // Initialization done by Java thread in init_globals()
  53 void management_init();
  54 void bytecodes_init();
  55 void classLoader_init1();
  56 void classLoader_init2(); // note: ClassLoader need 2-phase init
  57 void compilationPolicy_init();
  58 void codeCache_init();
  59 void VM_Version_init();
  60 void os_init_globals();        // depends on VM_Version_init, before universe_init
  61 void stubRoutines_init1();
  62 jint universe_init();          // depends on codeCache_init and stubRoutines_init
  63 void interpreter_init();       // before any methods loaded
  64 void invocationCounter_init(); // before any methods loaded
  65 void marksweep_init();
  66 void accessFlags_init();
  67 void templateTable_init();
  68 void InterfaceSupport_init();
  69 void universe2_init();  // dependent on codeCache_init and stubRoutines_init, loads primordial classes
  70 void referenceProcessor_init();
  71 void jni_handles_init();
  72 void vmStructs_init();
  73 
  74 void vtableStubs_init();
  75 void InlineCacheBuffer_init();
  76 void compilerOracle_init();
  77 bool compileBroker_init();
  78 void dependencyContext_init();
  79 
  80 // Initialization after compiler initialization
  81 bool universe_post_init();  // must happen after compiler_init
  82 void javaClasses_init();  // must happen after vtable initialization
  83 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
  84 
  85 // Do not disable thread-local-storage, as it is important for some
  86 // JNI/JVM/JVMTI functions and signal handlers to work properly
  87 // during VM shutdown
  88 void perfMemory_exit();
  89 void ostream_exit();
  90 
  91 void vm_init_globals() {
  92   check_ThreadShadow();
  93   basic_types_init();
  94   eventlog_init();
  95   mutex_init();
  96   chunkpool_init();
  97   perfMemory_init();
  98   SuspendibleThreadSet_init();
  99 }
 100 
 101 
 102 jint init_globals() {
 103   HandleMark hm;
 104   management_init();
 105   bytecodes_init();
 106   classLoader_init1();
 107   compilationPolicy_init();
 108   codeCache_init();
 109   CodeCacheExtensions::initialize();
 110   VM_Version_init();
 111   CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::VMVersion);
 112   os_init_globals();
 113   stubRoutines_init1();
 114   CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::StubRoutines1);
 115   jint status = universe_init();  // dependent on codeCache_init and
 116                                   // stubRoutines_init1 and metaspace_init.
 117   if (status != JNI_OK)
 118     return status;
 119 
 120   classLoader_init2();  // after SymbolTable creation, set up -Xpatch entries
 121   CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::Universe);
 122   interpreter_init();  // before any methods loaded
 123   CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::Interpreter);
 124   invocationCounter_init();  // before any methods loaded
 125   marksweep_init();
 126   accessFlags_init();
 127   templateTable_init();
 128   InterfaceSupport_init();
 129   SharedRuntime::generate_stubs();
 130   universe2_init();  // dependent on codeCache_init and stubRoutines_init1
 131   referenceProcessor_init();
 132   jni_handles_init();
 133 #if INCLUDE_VM_STRUCTS
 134   vmStructs_init();
 135 #endif // INCLUDE_VM_STRUCTS
 136 
 137   vtableStubs_init();
 138   InlineCacheBuffer_init();
 139   compilerOracle_init();
 140   dependencyContext_init();
 141 
 142   if (!compileBroker_init()) {
 143     return JNI_EINVAL;
 144   }
 145   VMRegImpl::set_regName();
 146 
 147   if (!universe_post_init()) {
 148     return JNI_ERR;
 149   }
 150   javaClasses_init();   // must happen after vtable initialization
 151   stubRoutines_init2(); // note: StubRoutines need 2-phase init
 152   MethodHandles::generate_adapters();
 153   CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::StubRoutines2);
 154 
 155 #if INCLUDE_NMT
 156   // Solaris stack is walkable only after stubRoutines are set up.
 157   // On Other platforms, the stack is always walkable.
 158   NMT_stack_walkable = true;
 159 #endif // INCLUDE_NMT
 160 
 161   // All the flags that get adjusted by VM_Version_init and os::init_2
 162   // have been set so dump the flags now.
 163   if (PrintFlagsFinal || PrintFlagsRanges) {
 164     CommandLineFlags::printFlags(tty, false, PrintFlagsRanges);
 165   }
 166 
 167   CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::InitGlobals);
 168   return JNI_OK;
 169 }
 170 
 171 
 172 void exit_globals() {
 173   static bool destructorsCalled = false;
 174   if (!destructorsCalled) {
 175     destructorsCalled = true;
 176     perfMemory_exit();
 177     if (PrintSafepointStatistics) {
 178       // Print the collected safepoint statistics.
 179       SafepointSynchronize::print_stat_on_exit();
 180     }
 181     if (PrintStringTableStatistics) {
 182       SymbolTable::dump(tty);
 183       StringTable::dump(tty);
 184     }
 185     ostream_exit();
 186   }
 187 }
 188 
 189 static volatile bool _init_completed = false;
 190 
 191 bool is_init_completed() {
 192   return _init_completed;
 193 }
 194 
 195 
 196 void set_init_completed() {
 197   assert(Universe::is_fully_initialized(), "Should have completed initialization");
 198   _init_completed = true;
 199 }
--- EOF ---