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/*
* Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "classfile/stringTable.hpp"
#include "classfile/symbolTable.hpp"
#include "code/icBuffer.hpp"
#include "compiler/compiler_globals.hpp"
#include "gc/shared/collectedHeap.hpp"
#include "interpreter/bytecodes.hpp"
#include "logging/logAsyncWriter.hpp"
#include "memory/universe.hpp"
#include "prims/jvmtiExport.hpp"
#include "prims/methodHandles.hpp"
#include "prims/downcallLinker.hpp"
#include "runtime/globals.hpp"
#include "runtime/atomic.hpp"
#include "runtime/continuation.hpp"
#include "runtime/flags/jvmFlag.hpp"
#include "runtime/handles.inline.hpp"
#include "runtime/icache.hpp"
#include "runtime/init.hpp"
#include "runtime/safepoint.hpp"
#include "runtime/sharedRuntime.hpp"
#include "services/memTracker.hpp"
#include "utilities/macros.hpp"
#if INCLUDE_JVMCI
#include "jvmci/jvmci.hpp"
#endif
// Initialization done by VM thread in vm_init_globals()
void check_ThreadShadow();
void eventlog_init();
void mutex_init();
void universe_oopstorage_init();
void perfMemory_init();
void SuspendibleThreadSet_init();
// Initialization done by Java thread in init_globals()
void management_init();
void bytecodes_init();
void classLoader_init1();
void compilationPolicy_init();
void codeCache_init();
void VM_Version_init();
void stubRoutines_init1();
void stubRoutines_initContinuationStubs();
jint universe_init(); // depends on codeCache_init and stubRoutines_init
// depends on universe_init, must be before interpreter_init (currently only on SPARC)
void gc_barrier_stubs_init();
void interpreter_init_stub(); // before any methods loaded
void interpreter_init_code(); // after methods loaded, but before they are linked
void accessFlags_init();
void InterfaceSupport_init();
void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
void referenceProcessor_init();
void jni_handles_init();
void vmStructs_init() NOT_DEBUG_RETURN;
void vtableStubs_init();
void InlineCacheBuffer_init();
void compilerOracle_init();
bool compileBroker_init();
void dependencyContext_init();
void dependencies_init();
// Initialization after compiler initialization
bool universe_post_init(); // must happen after compiler_init
void javaClasses_init(); // must happen after vtable initialization
void stubRoutines_init2(); // note: StubRoutines need 2-phase init
void continuations_init(); // depends on flags (UseCompressedOops) and barrier sets
// Do not disable thread-local-storage, as it is important for some
// JNI/JVM/JVMTI functions and signal handlers to work properly
// during VM shutdown
void perfMemory_exit();
void ostream_exit();
void vm_init_globals() {
check_ThreadShadow();
basic_types_init();
eventlog_init();
mutex_init();
universe_oopstorage_init();
perfMemory_init();
SuspendibleThreadSet_init();
}
jint init_globals() {
management_init();
JvmtiExport::initialize_oop_storage();
bytecodes_init();
classLoader_init1();
compilationPolicy_init();
codeCache_init();
VM_Version_init(); // depends on codeCache_init for emitting code
stubRoutines_init1();
jint status = universe_init(); // dependent on codeCache_init and
// stubRoutines_init1 and metaspace_init.
if (status != JNI_OK)
return status;
AsyncLogWriter::initialize();
gc_barrier_stubs_init(); // depends on universe_init, must be before interpreter_init
continuations_init(); // must precede continuation stub generation
stubRoutines_initContinuationStubs(); // depends on continuations_init
interpreter_init_stub(); // before methods get loaded
accessFlags_init();
InterfaceSupport_init();
VMRegImpl::set_regName(); // need this before generate_stubs (for printing oop maps).
SharedRuntime::generate_stubs();
universe2_init(); // dependent on codeCache_init and stubRoutines_init1
javaClasses_init();// must happen after vtable initialization, before referenceProcessor_init
interpreter_init_code(); // after javaClasses_init and before any method gets linked
referenceProcessor_init();
jni_handles_init();
#if INCLUDE_VM_STRUCTS
vmStructs_init();
#endif // INCLUDE_VM_STRUCTS
vtableStubs_init();
InlineCacheBuffer_init();
compilerOracle_init();
dependencyContext_init();
dependencies_init();
if (!compileBroker_init()) {
return JNI_EINVAL;
}
#if INCLUDE_JVMCI
if (EnableJVMCI) {
JVMCI::initialize_globals();
}
#endif
if (!universe_post_init()) {
return JNI_ERR;
}
stubRoutines_init2(); // note: StubRoutines need 2-phase init
MethodHandles::generate_adapters();
// All the flags that get adjusted by VM_Version_init and os::init_2
// have been set so dump the flags now.
if (PrintFlagsFinal || PrintFlagsRanges) {
JVMFlag::printFlags(tty, false, PrintFlagsRanges);
}
return JNI_OK;
}
void exit_globals() {
static bool destructorsCalled = false;
if (!destructorsCalled) {
destructorsCalled = true;
perfMemory_exit();
SafepointTracing::statistics_exit_log();
if (PrintStringTableStatistics) {
SymbolTable::dump(tty);
StringTable::dump(tty);
}
ostream_exit();
}
}
static volatile bool _init_completed = false;
bool is_init_completed() {
return Atomic::load_acquire(&_init_completed);
}
void wait_init_completed() {
MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag);
while (!_init_completed) {
ml.wait();
}
}
void set_init_completed() {
assert(Universe::is_fully_initialized(), "Should have completed initialization");
MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag);
Atomic::release_store(&_init_completed, true);
ml.notify_all();
}
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