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8003424: Enable Class Data Sharing for CompressedOops

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8016729: ObjectAlignmentInBytes=16 now forces the use of heap based compressed oops
8005933: The -Xshare:auto option is ignored for -server

Move klass metaspace above the heap and support CDS with compressed klass ptrs.

Reviewed-by: coleenp, kvn, mgerdin, tschatzl, stefank
This commit is contained in:
Harold Seigel 2013-08-15 20:04:10 -04:00
parent 9d372e7801
commit 4d91f4e69d
34 changed files with 876 additions and 552 deletions
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6
hotspot/src/share/vm/oops/oopsHierarchy.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2013, 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
@ -33,6 +33,10 @@
// of B, A's representation is a prefix of B's representation.
typedef juint narrowOop; // Offset instead of address for an oop within a java object
// If compressed klass pointers then use narrowKlass.
typedef juint narrowKlass;
typedef void* OopOrNarrowOopStar;
typedef class markOopDesc* markOop;