jdk8-mips64-public/hotspot: src/share/vm/memory/serialize.cpp@8ce625481709

7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
Summary: Make CDS reorder vtables so that dump time vtables match run time order, so when redefine classes reinitializes them, they aren't in the wrong order.
Reviewed-by: dcubed, acorn

     1 /*

     2  * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.

     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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    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

    21  * questions.

    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "classfile/symbolTable.hpp"

    27 #include "classfile/systemDictionary.hpp"

    28 #include "code/codeCache.hpp"

    29 #include "memory/classify.hpp"

    30 #include "memory/compactingPermGenGen.hpp"

    31 #include "oops/compiledICHolderOop.hpp"

    32 #include "oops/methodDataOop.hpp"

    33 #include "oops/objArrayOop.hpp"

    34 #include "oops/oop.inline.hpp"

    37 // Serialize out the block offset shared array for the shared spaces.

    39 void CompactingPermGenGen::serialize_bts(SerializeOopClosure* soc) {

    40   _ro_bts->serialize(soc, readonly_bottom, readonly_end);

    41   _rw_bts->serialize(soc, readwrite_bottom, readwrite_end);

    42 }

    45 // Read/write a data stream for restoring/preserving oop pointers and

    46 // miscellaneous data from/to the shared archive file.

    48 void CompactingPermGenGen::serialize_oops(SerializeOopClosure* soc) {

    49   int tag = 0;

    50   soc->do_tag(--tag);

    52   assert(!UseCompressedOops, "UseCompressedOops doesn't work with shared archive");

    53   // Verify the sizes of various oops in the system.

    54   soc->do_tag(sizeof(oopDesc));

    55   soc->do_tag(sizeof(instanceOopDesc));

    56   soc->do_tag(sizeof(methodOopDesc));

    57   soc->do_tag(sizeof(constMethodOopDesc));

    58   soc->do_tag(sizeof(methodDataOopDesc));

    59   soc->do_tag(arrayOopDesc::base_offset_in_bytes(T_BYTE));

    60   soc->do_tag(sizeof(constantPoolOopDesc));

    61   soc->do_tag(sizeof(constantPoolCacheOopDesc));

    62   soc->do_tag(objArrayOopDesc::base_offset_in_bytes());

    63   soc->do_tag(typeArrayOopDesc::base_offset_in_bytes(T_BYTE));

    64   soc->do_tag(sizeof(Symbol));

    65   soc->do_tag(sizeof(klassOopDesc));

    66   soc->do_tag(sizeof(markOopDesc));

    67   soc->do_tag(sizeof(compiledICHolderOopDesc));

    69   // Dump the block offset table entries.

    70   GenCollectedHeap* gch = GenCollectedHeap::heap();

    71   CompactingPermGenGen* pg = (CompactingPermGenGen*)gch->perm_gen();

    72   pg->serialize_bts(soc);

    73   soc->do_tag(--tag);

    74   pg->ro_space()->serialize_block_offset_array_offsets(soc);

    75   soc->do_tag(--tag);

    76   pg->rw_space()->serialize_block_offset_array_offsets(soc);

    77   soc->do_tag(--tag);

    79   // Special case - this oop needed in oop->is_oop() assertions.

    80   soc->do_ptr((void**)&Universe::_klassKlassObj);

    81   soc->do_tag(--tag);

    83   // Dump/restore miscellaneous oops.

    84   Universe::oops_do(soc, true);

    85   soc->do_tag(--tag);

    86   CodeCache::oops_do(soc);

    87   soc->do_tag(--tag);

    89   // Dump/restore references to commonly used names and signatures.

    90   vmSymbols::serialize(soc);

    91   soc->do_tag(--tag);

    93   soc->do_tag(666);

    94 }

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

src/share/vm/memory/serialize.cpp@8ce625481709

src/share/vm/memory/serialize.cpp