Mercurial > hg > truffle
diff src/share/vm/oops/markOop.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 | 1d1603768966 |
| children | 22b8d3d181d9 |
line wrap: on
line diff
--- a/src/share/vm/oops/markOop.hpp Fri Aug 31 16:39:35 2012 -0700 +++ b/src/share/vm/oops/markOop.hpp Sat Sep 01 13:25:18 2012 -0400 @@ -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 @@ -261,9 +261,9 @@ // Should this header be preserved during a scavenge where CMS is // the old generation? // (This is basically the same body as must_be_preserved_for_promotion_failure(), - // but takes the klassOop as argument instead) - inline bool must_be_preserved_for_cms_scavenge(klassOop klass_of_obj_containing_mark) const; - inline bool must_be_preserved_with_bias_for_cms_scavenge(klassOop klass_of_obj_containing_mark) const; + // but takes the Klass* as argument instead) + inline bool must_be_preserved_for_cms_scavenge(Klass* klass_of_obj_containing_mark) const; + inline bool must_be_preserved_with_bias_for_cms_scavenge(Klass* klass_of_obj_containing_mark) const; // WARNING: The following routines are used EXCLUSIVELY by // synchronization functions. They are not really gc safe. @@ -331,6 +331,7 @@ // age operations markOop set_marked() { return markOop((value() & ~lock_mask_in_place) | marked_value); } + markOop set_unmarked() { return markOop((value() & ~lock_mask_in_place) | unlocked_value); } int age() const { return mask_bits(value() >> age_shift, age_mask); } markOop set_age(int v) const { @@ -365,9 +366,6 @@ // Recover address of oop from encoded form used in mark inline void* decode_pointer() { if (UseBiasedLocking && has_bias_pattern()) return NULL; return clear_lock_bits(); } - // see the definition in markOop.cpp for the gory details - bool should_not_be_cached() const; - // These markOops indicate cms free chunk blocks and not objects. // In 64 bit, the markOop is set to distinguish them from oops. // These are defined in 32 bit mode for vmStructs.