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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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8
hotspot/src/share/vm/runtime/vmStructs.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2000, 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
@ -78,10 +78,10 @@ typedef struct {
} VMStructEntry;
typedef struct {
const char* typeName; // Type name (example: "methodOopDesc")
const char* typeName; // Type name (example: "Method")
const char* superclassName; // Superclass name, or null if none (example: "oopDesc")
int32_t isOopType; // Does this type represent an oop typedef? (i.e., "methodOop" or
// "klassOop", but NOT "methodOopDesc")
int32_t isOopType; // Does this type represent an oop typedef? (i.e., "Method*" or
// "Klass*", but NOT "Method")
int32_t isIntegerType; // Does this type represent an integer type (of arbitrary size)?
int32_t isUnsigned; // If so, is it unsigned?
uint64_t size; // Size, in bytes, of the type