Mercurial > hg > truffle
diff src/share/vm/memory/memRegion.hpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | d2a62e0f25eb |
| children | f9be75d21404 |
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--- a/src/share/vm/memory/memRegion.hpp Fri Aug 31 16:39:35 2012 -0700 +++ b/src/share/vm/memory/memRegion.hpp Sat Sep 01 13:25:18 2012 -0400 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000, 2010, 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 @@ -36,6 +36,8 @@ // The intent is that they remain very small and contain no // objects. +class MetaWord; + class MemRegion VALUE_OBJ_CLASS_SPEC { friend class VMStructs; private: @@ -50,6 +52,10 @@ _start(start), _word_size(pointer_delta(end, start)) { assert(end >= start, "incorrect constructor arguments"); } + MemRegion(MetaWord* start, MetaWord* end) : + _start((HeapWord*)start), _word_size(pointer_delta(end, start)) { + assert(end >= start, "incorrect constructor arguments"); + } MemRegion(const MemRegion& mr): _start(mr._start), _word_size(mr._word_size) {}