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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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16
hotspot/src/share/vm/ci/ciMethod.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1999, 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
@ -42,9 +42,9 @@ class BCEscapeAnalyzer;
// ciMethod
//
// This class represents a methodOop in the HotSpot virtual
// This class represents a Method* in the HotSpot virtual
// machine.
class ciMethod : public ciObject {
class ciMethod : public ciMetadata {
friend class CompileBroker;
CI_PACKAGE_ACCESS
friend class ciEnv;
@ -90,8 +90,8 @@ class ciMethod : public ciObject {
ciMethod(methodHandle h_m);
ciMethod(ciInstanceKlass* holder, ciSymbol* name, ciSymbol* signature, ciInstanceKlass* accessor);
methodOop get_methodOop() const {
methodOop m = (methodOop)get_oop();
Method* get_Method() const {
Method* m = (Method*)_metadata;
assert(m != NULL, "illegal use of unloaded method");
return m;
}
@ -164,8 +164,8 @@ class ciMethod : public ciObject {
// Code size for inlining decisions.
int code_size_for_inlining();
bool force_inline() { return get_methodOop()->force_inline(); }
bool dont_inline() { return get_methodOop()->dont_inline(); }
bool force_inline() { return get_Method()->force_inline(); }
bool dont_inline() { return get_Method()->dont_inline(); }
int comp_level();
int highest_osr_comp_level();
@ -268,7 +268,7 @@ class ciMethod : public ciObject {
bool has_member_arg() const;
// What kind of ciObject is this?
bool is_method() { return true; }
bool is_method() const { return true; }
// Java access flags
bool is_public () const { return flags().is_public(); }