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6964458: Reimplement class meta-data storage to use native memory

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Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
This commit is contained in:
Jon Masamitsu 2012-09-01 13:25:18 -04:00 • committed by Coleen Phillimore
parent 36eee7c8c8
commit 5c58d27aac
853 changed files with 26124 additions and 82956 deletions
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12
hotspot/src/share/vm/utilities/exceptions.cpp
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@ -88,7 +88,7 @@ bool Exceptions::special_exception(Thread* thread, const char* file, int line, H
// adequate stack space.
// This can happen with stress testing a large value of StackShadowPages
if (h_exception()->klass() == SystemDictionary::StackOverflowError_klass()) {
instanceKlass* ik = instanceKlass::cast(h_exception->klass());
InstanceKlass* ik = InstanceKlass::cast(h_exception->klass());
assert(ik->is_initialized(),
"need to increase min_stack_allowed calculation");
}
@ -219,10 +219,10 @@ void Exceptions::_throw_cause(Thread* thread, const char* file, int line, Symbol
void Exceptions::throw_stack_overflow_exception(Thread* THREAD, const char* file, int line, methodHandle method) {
Handle exception;
if (!THREAD->has_pending_exception()) {
klassOop k = SystemDictionary::StackOverflowError_klass();
oop e = instanceKlass::cast(k)->allocate_instance(CHECK);
Klass* k = SystemDictionary::StackOverflowError_klass();
oop e = InstanceKlass::cast(k)->allocate_instance(CHECK);
exception = Handle(THREAD, e); // fill_in_stack trace does gc
assert(instanceKlass::cast(k)->is_initialized(), "need to increase min_stack_allowed calculation");
assert(InstanceKlass::cast(k)->is_initialized(), "need to increase min_stack_allowed calculation");
if (StackTraceInThrowable) {
java_lang_Throwable::fill_in_stack_trace(exception, method());
}
@ -257,7 +257,7 @@ Handle Exceptions::new_exception(Thread *thread, Symbol* name,
Handle h_exception;
// Resolve exception klass
klassOop ik = SystemDictionary::resolve_or_fail(name, h_loader, h_protection_domain, true, thread);
Klass* ik = SystemDictionary::resolve_or_fail(name, h_loader, h_protection_domain, true, thread);
instanceKlassHandle klass(thread, ik);
if (!thread->has_pending_exception()) {
@ -451,7 +451,7 @@ void Exceptions::debug_check_abort(Handle exception, const char* message) {
message = java_lang_String::as_utf8_string(msg);
}
}
debug_check_abort(instanceKlass::cast(exception()->klass())->external_name(), message);
debug_check_abort(InstanceKlass::cast(exception()->klass())->external_name(), message);
}
}
#endif