Mercurial > hg > truffle
annotate src/share/vm/memory/serialize.cpp @ 113:ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
| author | coleenp |
|---|---|
| date | Sun, 13 Apr 2008 17:43:42 -0400 |
| parents | a61af66fc99e |
| children | d1605aabd0a1 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * Copyright 2003-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_serialize.cpp.incl" | |
| 27 | |
| 28 | |
| 29 // Serialize out the block offset shared array for the shared spaces. | |
| 30 | |
| 31 void CompactingPermGenGen::serialize_bts(SerializeOopClosure* soc) { | |
| 32 _ro_bts->serialize(soc, readonly_bottom, readonly_end); | |
| 33 _rw_bts->serialize(soc, readwrite_bottom, readwrite_end); | |
| 34 } | |
| 35 | |
| 36 | |
| 37 // Read/write a data stream for restoring/preserving oop pointers and | |
| 38 // miscellaneous data from/to the shared archive file. | |
| 39 | |
| 40 void CompactingPermGenGen::serialize_oops(SerializeOopClosure* soc) { | |
| 41 int tag = 0; | |
| 42 soc->do_tag(--tag); | |
| 43 | |
|
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
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44 assert(!UseCompressedOops, "UseCompressedOops doesn't work with shared archive"); |
| 0 | 45 // Verify the sizes of various oops in the system. |
| 46 soc->do_tag(sizeof(oopDesc)); | |
| 47 soc->do_tag(sizeof(instanceOopDesc)); | |
| 48 soc->do_tag(sizeof(methodOopDesc)); | |
| 49 soc->do_tag(sizeof(constMethodOopDesc)); | |
| 50 soc->do_tag(sizeof(methodDataOopDesc)); | |
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
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diff
changeset
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51 soc->do_tag(arrayOopDesc::base_offset_in_bytes(T_BYTE)); |
| 0 | 52 soc->do_tag(sizeof(constantPoolOopDesc)); |
| 53 soc->do_tag(sizeof(constantPoolCacheOopDesc)); | |
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113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
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54 soc->do_tag(objArrayOopDesc::base_offset_in_bytes(T_BYTE)); |
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
55 soc->do_tag(typeArrayOopDesc::base_offset_in_bytes(T_BYTE)); |
| 0 | 56 soc->do_tag(sizeof(symbolOopDesc)); |
| 57 soc->do_tag(sizeof(klassOopDesc)); | |
| 58 soc->do_tag(sizeof(markOopDesc)); | |
| 59 soc->do_tag(sizeof(compiledICHolderOopDesc)); | |
| 60 | |
| 61 // Dump the block offset table entries. | |
| 62 GenCollectedHeap* gch = GenCollectedHeap::heap(); | |
| 63 CompactingPermGenGen* pg = (CompactingPermGenGen*)gch->perm_gen(); | |
| 64 pg->serialize_bts(soc); | |
| 65 soc->do_tag(--tag); | |
| 66 pg->ro_space()->serialize_block_offset_array_offsets(soc); | |
| 67 soc->do_tag(--tag); | |
| 68 pg->rw_space()->serialize_block_offset_array_offsets(soc); | |
| 69 soc->do_tag(--tag); | |
| 70 | |
| 71 // Special case - this oop needed in oop->is_oop() assertions. | |
| 72 soc->do_ptr((void**)&Universe::_klassKlassObj); | |
| 73 soc->do_tag(--tag); | |
| 74 | |
| 75 // Dump/restore miscellaneous oops. | |
| 76 Universe::oops_do(soc, true); | |
| 77 soc->do_tag(--tag); | |
| 78 | |
| 79 vmSymbols::oops_do(soc, true); soc->do_tag(--tag); | |
| 80 CodeCache::oops_do(soc); soc->do_tag(--tag); | |
| 81 soc->do_tag(666); | |
| 82 } |