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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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20
hotspot/src/share/vm/runtime/fieldDescriptor.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2012, 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
@ -27,6 +27,7 @@
#include "classfile/vmSymbols.hpp"
#include "memory/resourceArea.hpp"
#include "memory/universe.inline.hpp"
#include "oops/annotations.hpp"
#include "oops/instanceKlass.hpp"
#include "oops/fieldStreams.hpp"
#include "runtime/fieldDescriptor.hpp"
@ -35,7 +36,7 @@
oop fieldDescriptor::loader() const {
return instanceKlass::cast(_cp->pool_holder())->class_loader();
return InstanceKlass::cast(_cp->pool_holder())->class_loader();
}
Symbol* fieldDescriptor::generic_signature() const {
@ -44,7 +45,7 @@ Symbol* fieldDescriptor::generic_signature() const {
}
int idx = 0;
instanceKlass* ik = instanceKlass::cast(field_holder());
InstanceKlass* ik = InstanceKlass::cast(field_holder());
for (AllFieldStream fs(ik); !fs.done(); fs.next()) {
if (idx == _index) {
return fs.generic_signature();
@ -56,12 +57,12 @@ Symbol* fieldDescriptor::generic_signature() const {
return NULL;
}
typeArrayOop fieldDescriptor::annotations() const {
instanceKlass* ik = instanceKlass::cast(field_holder());
objArrayOop md = ik->fields_annotations();
AnnotationArray* fieldDescriptor::annotations() const {
InstanceKlass* ik = InstanceKlass::cast(field_holder());
Array<AnnotationArray*>* md = ik->fields_annotations();
if (md == NULL)
return NULL;
return typeArrayOop(md->obj_at(index()));
return md->at(index());
}
constantTag fieldDescriptor::initial_value_tag() const {
@ -85,11 +86,10 @@ jdouble fieldDescriptor::double_initial_value() const {
}
oop fieldDescriptor::string_initial_value(TRAPS) const {
return constants()->string_at(initial_value_index(), CHECK_0);
return constants()->uncached_string_at(initial_value_index(), CHECK_0);
}
void fieldDescriptor::initialize(klassOop k, int index) {
instanceKlass* ik = instanceKlass::cast(k);
void fieldDescriptor::initialize(InstanceKlass* ik, int index) {
_cp = ik->constants();
FieldInfo* f = ik->field(index);
assert(!f->is_internal(), "regular Java fields only");