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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.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2011, 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
@ -25,9 +25,7 @@
#ifndef SHARE_VM_RUNTIME_FIELDDESCRIPTOR_HPP
#define SHARE_VM_RUNTIME_FIELDDESCRIPTOR_HPP
#include "oops/constantPoolOop.hpp"
#include "oops/klassOop.hpp"
#include "oops/oop.inline.hpp"
#include "oops/constantPool.hpp"
#include "oops/symbol.hpp"
#include "runtime/fieldType.hpp"
#include "utilities/accessFlags.hpp"
@ -45,12 +43,12 @@ class fieldDescriptor VALUE_OBJ_CLASS_SPEC {
// update the access_flags for the field in the klass
void update_klass_field_access_flag() {
instanceKlass* ik = instanceKlass::cast(field_holder());
InstanceKlass* ik = InstanceKlass::cast(field_holder());
ik->field(index())->set_access_flags(_access_flags.as_short());
}
FieldInfo* field() const {
instanceKlass* ik = instanceKlass::cast(field_holder());
InstanceKlass* ik = InstanceKlass::cast(field_holder());
return ik->field(_index);
}
@ -61,15 +59,15 @@ class fieldDescriptor VALUE_OBJ_CLASS_SPEC {
Symbol* signature() const {
return field()->signature(_cp);
}
klassOop field_holder() const { return _cp->pool_holder(); }
constantPoolOop constants() const { return _cp(); }
Klass* field_holder() const { return _cp->pool_holder(); }
ConstantPool* constants() const { return _cp(); }
AccessFlags access_flags() const { return _access_flags; }
oop loader() const;
// Offset (in words) of field from start of instanceOop / klassOop
// Offset (in words) of field from start of instanceOop / Klass*
int offset() const { return field()->offset(); }
Symbol* generic_signature() const;
int index() const { return _index; }
typeArrayOop annotations() const;
AnnotationArray* annotations() const;
// Initial field value
bool has_initial_value() const { return field()->initval_index() != 0; }
@ -113,7 +111,7 @@ class fieldDescriptor VALUE_OBJ_CLASS_SPEC {
}
// Initialization
void initialize(klassOop k, int index);
void initialize(InstanceKlass* ik, int index);
// Print
void print() { print_on(tty); }