jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/shared/markSweep.inline.hpp@db9981fd3124

8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
Summary: Rename INCLUDE_ALTERNATE_GCS to INCLUDE_ALL_GCS and replace SERIALGC with INCLUDE_ALL_GCS.
Reviewed-by: coleenp, stefank

     1 /*

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     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

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    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

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    23  */

    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_MARKSWEEP_INLINE_HPP

    26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_MARKSWEEP_INLINE_HPP

    28 #include "gc_implementation/shared/markSweep.hpp"

    29 #include "gc_interface/collectedHeap.hpp"

    30 #include "utilities/stack.inline.hpp"

    31 #include "utilities/macros.hpp"

    32 #if INCLUDE_ALL_GCS

    33 #include "gc_implementation/parallelScavenge/psParallelCompact.hpp"

    34 #endif // INCLUDE_ALL_GCS

    36 inline void MarkSweep::mark_object(oop obj) {

    37   // some marks may contain information we need to preserve so we store them away

    38   // and overwrite the mark.  We'll restore it at the end of markSweep.

    39   markOop mark = obj->mark();

    40   obj->set_mark(markOopDesc::prototype()->set_marked());

    42   if (mark->must_be_preserved(obj)) {

    43     preserve_mark(obj, mark);

    44   }

    45 }

    47 template <class T> inline void MarkSweep::follow_root(T* p) {

    48   assert(!Universe::heap()->is_in_reserved(p),

    49          "roots shouldn't be things within the heap");

    50   T heap_oop = oopDesc::load_heap_oop(p);

    51   if (!oopDesc::is_null(heap_oop)) {

    52     oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);

    53     if (!obj->mark()->is_marked()) {

    54       mark_object(obj);

    55       obj->follow_contents();

    56     }

    57   }

    58   follow_stack();

    59 }

    61 template <class T> inline void MarkSweep::mark_and_push(T* p) {

    62 //  assert(Universe::heap()->is_in_reserved(p), "should be in object space");

    63   T heap_oop = oopDesc::load_heap_oop(p);

    64   if (!oopDesc::is_null(heap_oop)) {

    65     oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);

    66     if (!obj->mark()->is_marked()) {

    67       mark_object(obj);

    68       _marking_stack.push(obj);

    69     }

    70   }

    71 }

    73 void MarkSweep::push_objarray(oop obj, size_t index) {

    74   ObjArrayTask task(obj, index);

    75   assert(task.is_valid(), "bad ObjArrayTask");

    76   _objarray_stack.push(task);

    77 }

    79 template <class T> inline void MarkSweep::adjust_pointer(T* p, bool isroot) {

    80   T heap_oop = oopDesc::load_heap_oop(p);

    81   if (!oopDesc::is_null(heap_oop)) {

    82     oop obj     = oopDesc::decode_heap_oop_not_null(heap_oop);

    83     oop new_obj = oop(obj->mark()->decode_pointer());

    84     assert(new_obj != NULL ||                         // is forwarding ptr?

    85            obj->mark() == markOopDesc::prototype() || // not gc marked?

    86            (UseBiasedLocking && obj->mark()->has_bias_pattern()),

    87                                                       // not gc marked?

    88            "should be forwarded");

    89     if (new_obj != NULL) {

    90       assert(Universe::heap()->is_in_reserved(new_obj),

    91              "should be in object space");

    92       oopDesc::encode_store_heap_oop_not_null(p, new_obj);

    93     }

    94   }

    95 }

    97 template <class T> inline void MarkSweep::KeepAliveClosure::do_oop_work(T* p) {

    98   mark_and_push(p);

    99 }

   101 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_MARKSWEEP_INLINE_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/gc_implementation/shared/markSweep.inline.hpp@db9981fd3124

src/share/vm/gc_implementation/shared/markSweep.inline.hpp