author | iklam |
Wed, 13 Nov 2019 16:36:54 -0800 | |
changeset 59070 | 22ee476cc664 |
parent 58096 | 0d97bf7cf8a4 |
permissions | -rw-r--r-- |
54927 | 1 |
/* |
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* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#ifndef SHARE_VM_MEMORY_DYNAMICARCHIVE_HPP |
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#define SHARE_VM_MEMORY_DYNAMICARCHIVE_HPP |
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#if INCLUDE_CDS |
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#include "classfile/compactHashtable.hpp" |
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#include "memory/allocation.hpp" |
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#include "memory/filemap.hpp" |
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#include "memory/memRegion.hpp" |
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#include "memory/virtualspace.hpp" |
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#include "oops/oop.hpp" |
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#include "utilities/exceptions.hpp" |
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#include "utilities/macros.hpp" |
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#include "utilities/resourceHash.hpp" |
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class DynamicArchiveHeader : public FileMapHeader { |
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friend class CDSOffsets; |
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private: |
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int _base_header_crc; |
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int _base_region_crc[MetaspaceShared::n_regions]; |
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public: |
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int base_header_crc() const { return _base_header_crc; } |
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int base_region_crc(int i) const { |
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assert(is_valid_region(i), "must be"); |
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return _base_region_crc[i]; |
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} |
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void set_base_header_crc(int c) { _base_header_crc = c; } |
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void set_base_region_crc(int i, int c) { |
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assert(is_valid_region(i), "must be"); |
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_base_region_crc[i] = c; |
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} |
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}; |
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class DynamicArchive : AllStatic { |
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static class DynamicArchiveBuilder* _builder; |
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static address original_to_target_impl(address orig_obj); |
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static address original_to_buffer_impl(address orig_obj); |
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static address buffer_to_target_impl(address buff_obj); |
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public: |
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static void dump(); |
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// obj is a copy of a MetaspaceObj, stored in the dumping buffer. |
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// |
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// The return value is the runtime targeted location of this object as |
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// mapped from the dynamic archive. |
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template <typename T> static T buffer_to_target(T buff_obj) { |
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return (T)buffer_to_target_impl(address(buff_obj)); |
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} |
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// obj is an original MetaspaceObj used by the JVM (e.g., a valid Symbol* in the |
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// SymbolTable). |
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// |
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// The return value is the runtime targeted location of this object as |
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// mapped from the dynamic archive. |
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template <typename T> static T original_to_target(T obj) { |
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return (T)original_to_target_impl(address(obj)); |
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} |
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// obj is an original MetaspaceObj use by the JVM (e.g., a valid Symbol* in the |
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// SymbolTable). |
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// |
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// The return value is the location of this object in the dump time |
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// buffer space |
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template <typename T> static T original_to_buffer(T obj) { |
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return (T)original_to_buffer_impl(address(obj)); |
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} |
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// Delta of this object from SharedBaseAddress |
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static uintx object_delta_uintx(void* buff_obj); |
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// Does obj point to an address inside the runtime target space of the dynamic |
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// archive? |
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static bool is_in_target_space(void *obj); |
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59070
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58096
diff
changeset
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static bool is_mapped() { return FileMapInfo::dynamic_info() != NULL; } |
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static bool validate(FileMapInfo* dynamic_info); |
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}; |
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#endif // INCLUDE_CDS |
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#endif // SHARE_VM_MEMORY_DYNAMICARCHIVE_HPP |