6619271: The -Xprintflags causes the VM to segv
Summary: add null checks
Reviewed-by: jrose, kvn
/*
* Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
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*/
# include "incls/_precompiled.incl"
# include "incls/_init.cpp.incl"
// Initialization done by VM thread in vm_init_globals()
void check_ThreadShadow();
void check_basic_types();
void eventlog_init();
void mutex_init();
void chunkpool_init();
void perfMemory_init();
// Initialization done by Java thread in init_globals()
void management_init();
void vtune_init();
void bytecodes_init();
void classLoader_init();
void codeCache_init();
void VM_Version_init();
void JDK_Version_init();
void stubRoutines_init1();
jint universe_init(); // dependent on codeCache_init and stubRoutines_init
void interpreter_init(); // before any methods loaded
void invocationCounter_init(); // before any methods loaded
void marksweep_init();
void accessFlags_init();
void templateTable_init();
void InterfaceSupport_init();
void universe2_init(); // dependent on codeCache_init and stubRoutines_init
void referenceProcessor_init();
void jni_handles_init();
void vmStructs_init();
void vtableStubs_init();
void InlineCacheBuffer_init();
void compilerOracle_init();
void compilationPolicy_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
// 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();
check_basic_types();
eventlog_init();
mutex_init();
chunkpool_init();
perfMemory_init();
}
jint init_globals() {
HandleMark hm;
management_init();
vtune_init();
bytecodes_init();
classLoader_init();
codeCache_init();
VM_Version_init();
JDK_Version_init();
stubRoutines_init1();
jint status = universe_init(); // dependent on codeCache_init and stubRoutines_init
if (status != JNI_OK)
return status;
interpreter_init(); // before any methods loaded
invocationCounter_init(); // before any methods loaded
marksweep_init();
accessFlags_init();
templateTable_init();
InterfaceSupport_init();
SharedRuntime::generate_stubs();
universe2_init(); // dependent on codeCache_init and stubRoutines_init
referenceProcessor_init();
jni_handles_init();
#ifndef VM_STRUCTS_KERNEL
vmStructs_init();
#endif // VM_STRUCTS_KERNEL
vtableStubs_init();
InlineCacheBuffer_init();
compilerOracle_init();
compilationPolicy_init();
VMRegImpl::set_regName();
if (!universe_post_init()) {
return JNI_ERR;
}
javaClasses_init(); // must happen after vtable initialization
stubRoutines_init2(); // note: StubRoutines need 2-phase init
// Although we'd like to, we can't easily do a heap verify
// here because the main thread isn't yet a JavaThread, so
// its TLAB may not be made parseable from the usual interfaces.
if (VerifyBeforeGC && !UseTLAB &&
Universe::heap()->total_collections() >= VerifyGCStartAt) {
Universe::heap()->prepare_for_verify();
Universe::verify(); // make sure we're starting with a clean slate
}
return JNI_OK;
}
void exit_globals() {
static bool destructorsCalled = false;
if (!destructorsCalled) {
destructorsCalled = true;
perfMemory_exit();
if (PrintSafepointStatistics) {
// Print the collected safepoint statistics.
SafepointSynchronize::print_stat_on_exit();
}
ostream_exit();
}
}
static bool _init_completed = false;
bool is_init_completed() {
return _init_completed;
}
void set_init_completed() {
_init_completed = true;
}