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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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6
hotspot/src/share/vm/runtime/signature.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
@ -26,7 +26,7 @@
#define SHARE_VM_RUNTIME_SIGNATURE_HPP
#include "memory/allocation.hpp"
#include "oops/methodOop.hpp"
#include "oops/method.hpp"
#include "utilities/top.hpp"
// SignatureIterators iterate over a Java signature (or parts of it).
@ -394,7 +394,7 @@ class SignatureStream : public StackObj {
BasicType type() const { return _type; }
Symbol* as_symbol(TRAPS);
enum FailureMode { ReturnNull, CNFException, NCDFError };
klassOop as_klass(Handle class_loader, Handle protection_domain, FailureMode failure_mode, TRAPS);
Klass* as_klass(Handle class_loader, Handle protection_domain, FailureMode failure_mode, TRAPS);
oop as_java_mirror(Handle class_loader, Handle protection_domain, FailureMode failure_mode, TRAPS);
const jbyte* raw_bytes() { return _signature->bytes() + _begin; }
int raw_length() { return _end - _begin; }