Wed, 18 Jan 2012 09:50:16 -0800
7129514: time warp warnings after 7117303
Summary: Replace calls to os::javaTimeMillis() that are used to update the milliseconds since the last GC to an equivalent that uses a monotonically non-decreasing time source.
Reviewed-by: ysr, jmasa
duke@435 | 1 | /* |
trims@2708 | 2 | * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "classfile/symbolTable.hpp" |
stefank@2314 | 27 | #include "classfile/systemDictionary.hpp" |
stefank@2314 | 28 | #include "code/codeCache.hpp" |
stefank@2314 | 29 | #include "memory/classify.hpp" |
stefank@2314 | 30 | #include "memory/compactingPermGenGen.hpp" |
stefank@2314 | 31 | #include "oops/compiledICHolderOop.hpp" |
stefank@2314 | 32 | #include "oops/methodDataOop.hpp" |
stefank@2314 | 33 | #include "oops/objArrayOop.hpp" |
stefank@2314 | 34 | #include "oops/oop.inline.hpp" |
duke@435 | 35 | |
duke@435 | 36 | |
duke@435 | 37 | // Serialize out the block offset shared array for the shared spaces. |
duke@435 | 38 | |
duke@435 | 39 | void CompactingPermGenGen::serialize_bts(SerializeOopClosure* soc) { |
duke@435 | 40 | _ro_bts->serialize(soc, readonly_bottom, readonly_end); |
duke@435 | 41 | _rw_bts->serialize(soc, readwrite_bottom, readwrite_end); |
duke@435 | 42 | } |
duke@435 | 43 | |
duke@435 | 44 | |
duke@435 | 45 | // Read/write a data stream for restoring/preserving oop pointers and |
duke@435 | 46 | // miscellaneous data from/to the shared archive file. |
duke@435 | 47 | |
duke@435 | 48 | void CompactingPermGenGen::serialize_oops(SerializeOopClosure* soc) { |
duke@435 | 49 | int tag = 0; |
duke@435 | 50 | soc->do_tag(--tag); |
duke@435 | 51 | |
coleenp@548 | 52 | assert(!UseCompressedOops, "UseCompressedOops doesn't work with shared archive"); |
duke@435 | 53 | // Verify the sizes of various oops in the system. |
duke@435 | 54 | soc->do_tag(sizeof(oopDesc)); |
duke@435 | 55 | soc->do_tag(sizeof(instanceOopDesc)); |
duke@435 | 56 | soc->do_tag(sizeof(methodOopDesc)); |
duke@435 | 57 | soc->do_tag(sizeof(constMethodOopDesc)); |
duke@435 | 58 | soc->do_tag(sizeof(methodDataOopDesc)); |
coleenp@548 | 59 | soc->do_tag(arrayOopDesc::base_offset_in_bytes(T_BYTE)); |
duke@435 | 60 | soc->do_tag(sizeof(constantPoolOopDesc)); |
duke@435 | 61 | soc->do_tag(sizeof(constantPoolCacheOopDesc)); |
twisti@1330 | 62 | soc->do_tag(objArrayOopDesc::base_offset_in_bytes()); |
coleenp@548 | 63 | soc->do_tag(typeArrayOopDesc::base_offset_in_bytes(T_BYTE)); |
coleenp@2497 | 64 | soc->do_tag(sizeof(Symbol)); |
duke@435 | 65 | soc->do_tag(sizeof(klassOopDesc)); |
duke@435 | 66 | soc->do_tag(sizeof(markOopDesc)); |
duke@435 | 67 | soc->do_tag(sizeof(compiledICHolderOopDesc)); |
duke@435 | 68 | |
duke@435 | 69 | // Dump the block offset table entries. |
duke@435 | 70 | GenCollectedHeap* gch = GenCollectedHeap::heap(); |
duke@435 | 71 | CompactingPermGenGen* pg = (CompactingPermGenGen*)gch->perm_gen(); |
duke@435 | 72 | pg->serialize_bts(soc); |
duke@435 | 73 | soc->do_tag(--tag); |
duke@435 | 74 | pg->ro_space()->serialize_block_offset_array_offsets(soc); |
duke@435 | 75 | soc->do_tag(--tag); |
duke@435 | 76 | pg->rw_space()->serialize_block_offset_array_offsets(soc); |
duke@435 | 77 | soc->do_tag(--tag); |
duke@435 | 78 | |
duke@435 | 79 | // Special case - this oop needed in oop->is_oop() assertions. |
duke@435 | 80 | soc->do_ptr((void**)&Universe::_klassKlassObj); |
duke@435 | 81 | soc->do_tag(--tag); |
duke@435 | 82 | |
duke@435 | 83 | // Dump/restore miscellaneous oops. |
duke@435 | 84 | Universe::oops_do(soc, true); |
duke@435 | 85 | soc->do_tag(--tag); |
coleenp@2497 | 86 | CodeCache::oops_do(soc); |
coleenp@2497 | 87 | soc->do_tag(--tag); |
duke@435 | 88 | |
coleenp@2497 | 89 | // Dump/restore references to commonly used names and signatures. |
coleenp@2497 | 90 | vmSymbols::serialize(soc); |
coleenp@2497 | 91 | soc->do_tag(--tag); |
coleenp@2497 | 92 | |
duke@435 | 93 | soc->do_tag(666); |
duke@435 | 94 | } |