author | iklam |
Wed, 13 Nov 2019 16:36:54 -0800 | |
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parent 58278 | e47b459b315c |
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/* |
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* Copyright (c) 2003, 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_MEMORY_FILEMAP_HPP |
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#define SHARE_MEMORY_FILEMAP_HPP |
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#include "classfile/classLoader.hpp" |
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#include "include/cds.h" |
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#include "memory/metaspaceShared.hpp" |
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#include "memory/metaspace.hpp" |
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#include "oops/compressedOops.hpp" |
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#include "utilities/align.hpp" |
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// Layout of the file: |
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// header: dump of archive instance plus versioning info, datestamp, etc. |
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// [magic # = 0xF00BABA2] |
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// ... padding to align on page-boundary |
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// read-write space |
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// read-only space |
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// misc data (block offset table, string table, symbols, dictionary, etc.) |
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// tag(666) |
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static const int JVM_IDENT_MAX = 256; |
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class CHeapBitMap; |
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class SharedClassPathEntry { |
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enum { |
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modules_image_entry, |
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jar_entry, |
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signed_jar_entry, |
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dir_entry, |
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non_existent_entry, |
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unknown_entry |
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}; |
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void set_name(const char* name, TRAPS); |
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u1 _type; |
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bool _from_class_path_attr; |
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time_t _timestamp; // jar timestamp, 0 if is directory, modules image or other |
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long _filesize; // jar/jimage file size, -1 if is directory, -2 if other |
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Array<char>* _name; |
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Array<u1>* _manifest; |
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public: |
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void init(bool is_modules_image, ClassPathEntry* cpe, TRAPS); |
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void init_as_non_existent(const char* path, TRAPS); |
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void metaspace_pointers_do(MetaspaceClosure* it); |
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bool validate(bool is_class_path = true) const; |
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// The _timestamp only gets set for jar files. |
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bool has_timestamp() const { |
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return _timestamp != 0; |
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} |
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bool is_dir() const { return _type == dir_entry; } |
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bool is_modules_image() const { return _type == modules_image_entry; } |
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bool is_jar() const { return _type == jar_entry; } |
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bool is_signed() const { return _type == signed_jar_entry; } |
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void set_is_signed() { |
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_type = signed_jar_entry; |
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} |
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bool from_class_path_attr() { return _from_class_path_attr; } |
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time_t timestamp() const { return _timestamp; } |
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long filesize() const { return _filesize; } |
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const char* name() const; |
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const char* manifest() const { |
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return (_manifest == NULL) ? NULL : (const char*)_manifest->data(); |
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} |
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int manifest_size() const { |
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return (_manifest == NULL) ? 0 : _manifest->length(); |
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} |
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void set_manifest(Array<u1>* manifest) { |
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_manifest = manifest; |
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} |
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bool check_non_existent() const; |
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}; |
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struct ArchiveHeapOopmapInfo { |
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address _oopmap; // bitmap for relocating embedded oops |
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size_t _oopmap_size_in_bits; |
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}; |
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class SharedPathTable { |
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Array<u8>* _table; |
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int _size; |
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public: |
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SharedPathTable() : _table(NULL), _size(0) {} |
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SharedPathTable(Array<u8>* table, int size) : _table(table), _size(size) {} |
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void dumptime_init(ClassLoaderData* loader_data, Thread* THREAD); |
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void metaspace_pointers_do(MetaspaceClosure* it); |
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int size() { |
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return _size; |
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} |
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SharedClassPathEntry* path_at(int index) { |
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if (index < 0) { |
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return NULL; |
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} |
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assert(index < _size, "sanity"); |
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char* p = (char*)_table->data(); |
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p += sizeof(SharedClassPathEntry) * index; |
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return (SharedClassPathEntry*)p; |
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} |
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Array<u8>* table() {return _table;} |
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void set_table(Array<u8>* table) {_table = table;} |
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}; |
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class FileMapRegion: private CDSFileMapRegion { |
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void assert_is_heap_region() const { |
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assert(_is_heap_region, "must be heap region"); |
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} |
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void assert_is_not_heap_region() const { |
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assert(!_is_heap_region, "must not be heap region"); |
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} |
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public: |
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static FileMapRegion* cast(CDSFileMapRegion* p) { |
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return (FileMapRegion*)p; |
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} |
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// Accessors |
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int crc() const { return _crc; } |
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size_t file_offset() const { return _file_offset; } |
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size_t mapping_offset() const { return _mapping_offset; } |
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size_t mapping_end_offset() const { return _mapping_offset + used_aligned(); } |
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size_t used() const { return _used; } |
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size_t used_aligned() const; // aligned up to os::vm_allocation_granularity() |
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char* mapped_base() const { assert_is_not_heap_region(); return _mapped_base; } |
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char* mapped_end() const { return mapped_base() + used_aligned(); } |
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bool read_only() const { return _read_only != 0; } |
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bool allow_exec() const { return _allow_exec != 0; } |
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bool mapped_from_file() const { return _mapped_from_file != 0; } |
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size_t oopmap_offset() const { assert_is_heap_region(); return _oopmap_offset; } |
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size_t oopmap_size_in_bits() const { assert_is_heap_region(); return _oopmap_size_in_bits; } |
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void set_file_offset(size_t s) { _file_offset = s; } |
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void set_read_only(bool v) { _read_only = v; } |
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void set_mapped_base(char* p) { _mapped_base = p; } |
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void set_mapped_from_file(bool v) { _mapped_from_file = v; } |
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void init(int region_index, char* base, size_t size, bool read_only, |
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bool allow_exec, int crc); |
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void init_oopmap(size_t oopmap_offset, size_t size_in_bits) { |
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_oopmap_offset = oopmap_offset; |
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_oopmap_size_in_bits = size_in_bits; |
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} |
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}; |
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class FileMapHeader: private CDSFileMapHeaderBase { |
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friend class CDSOffsets; |
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friend class VMStructs; |
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size_t _header_size; |
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// The following fields record the states of the VM during dump time. |
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// They are compared with the runtime states to see if the archive |
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// can be used. |
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size_t _alignment; // how shared archive should be aligned |
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int _obj_alignment; // value of ObjectAlignmentInBytes |
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address _narrow_oop_base; // compressed oop encoding base |
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int _narrow_oop_shift; // compressed oop encoding shift |
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bool _compact_strings; // value of CompactStrings |
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uintx _max_heap_size; // java max heap size during dumping |
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CompressedOops::Mode _narrow_oop_mode; // compressed oop encoding mode |
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int _narrow_klass_shift; // save narrow klass base and shift |
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size_t _misc_data_patching_offset; |
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size_t _serialized_data_offset; // Data accessed using {ReadClosure,WriteClosure}::serialize() |
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size_t _i2i_entry_code_buffers_offset; |
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size_t _i2i_entry_code_buffers_size; |
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address _heap_end; // heap end at dump time. |
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bool _base_archive_is_default; // indicates if the base archive is the system default one |
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// The following fields are all sanity checks for whether this archive |
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// will function correctly with this JVM and the bootclasspath it's |
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// invoked with. |
58096 | 200 |
char _jvm_ident[JVM_IDENT_MAX]; // identifier string of the jvm that created this dump |
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|
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// size of the base archive name including NULL terminator |
58096 | 203 |
size_t _base_archive_name_size; |
54927 | 204 |
|
57898 | 205 |
// The following is a table of all the boot/app/module path entries that were used |
206 |
// during dumping. At run time, we validate these entries according to their |
|
207 |
// SharedClassPathEntry::_type. See: |
|
208 |
// check_nonempty_dir_in_shared_path_table() |
|
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// validate_shared_path_table() |
|
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// validate_non_existent_class_paths() |
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size_t _shared_path_table_offset; |
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int _shared_path_table_size; |
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213 |
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jshort _app_class_paths_start_index; // Index of first app classpath entry |
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jshort _app_module_paths_start_index; // Index of first module path entry |
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jshort _num_module_paths; // number of module path entries |
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jshort _max_used_path_index; // max path index referenced during CDS dump |
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bool _verify_local; // BytecodeVerificationLocal setting |
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bool _verify_remote; // BytecodeVerificationRemote setting |
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bool _has_platform_or_app_classes; // Archive contains app classes |
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char* _requested_base_address; // Archive relocation is not necessary if we map with this base address. |
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char* _mapped_base_address; // Actual base address where archive is mapped. |
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223 |
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bool _allow_archiving_with_java_agent; // setting of the AllowArchivingWithJavaAgent option |
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size_t _ptrmap_size_in_bits; // Size of pointer relocation bitmap |
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char* from_mapped_offset(size_t offset) const { |
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return mapped_base_address() + offset; |
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} |
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void set_mapped_offset(char* p, size_t *offset) { |
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assert(p >= mapped_base_address(), "sanity"); |
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*offset = p - mapped_base_address(); |
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} |
58096 | 234 |
public: |
235 |
// Accessors -- fields declared in CDSFileMapHeaderBase |
|
236 |
unsigned int magic() const {return _magic;} |
|
237 |
int crc() const { return _crc; } |
|
238 |
int version() const { return _version; } |
|
239 |
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240 |
void set_crc(int crc_value) { _crc = crc_value; } |
|
241 |
void set_version(int v) { _version = v; } |
|
242 |
||
243 |
// Accessors -- fields declared in FileMapHeader |
|
244 |
||
245 |
size_t header_size() const { return _header_size; } |
|
246 |
size_t alignment() const { return _alignment; } |
|
247 |
int obj_alignment() const { return _obj_alignment; } |
|
248 |
address narrow_oop_base() const { return _narrow_oop_base; } |
|
249 |
int narrow_oop_shift() const { return _narrow_oop_shift; } |
|
250 |
bool compact_strings() const { return _compact_strings; } |
|
251 |
uintx max_heap_size() const { return _max_heap_size; } |
|
252 |
CompressedOops::Mode narrow_oop_mode() const { return _narrow_oop_mode; } |
|
253 |
int narrow_klass_shift() const { return _narrow_klass_shift; } |
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address narrow_klass_base() const { return (address)mapped_base_address(); } |
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char* misc_data_patching_start() const { return from_mapped_offset(_misc_data_patching_offset); } |
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char* serialized_data_start() const { return from_mapped_offset(_serialized_data_offset); } |
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address i2i_entry_code_buffers() const { return (address)from_mapped_offset(_i2i_entry_code_buffers_offset); } |
58096 | 258 |
size_t i2i_entry_code_buffers_size() const { return _i2i_entry_code_buffers_size; } |
259 |
address heap_end() const { return _heap_end; } |
|
260 |
bool base_archive_is_default() const { return _base_archive_is_default; } |
|
261 |
const char* jvm_ident() const { return _jvm_ident; } |
|
262 |
size_t base_archive_name_size() const { return _base_archive_name_size; } |
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char* requested_base_address() const { return _requested_base_address; } |
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char* mapped_base_address() const { return _mapped_base_address; } |
58096 | 265 |
bool has_platform_or_app_classes() const { return _has_platform_or_app_classes; } |
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size_t ptrmap_size_in_bits() const { return _ptrmap_size_in_bits; } |
58096 | 267 |
|
268 |
// FIXME: These should really return int |
|
269 |
jshort max_used_path_index() const { return _max_used_path_index; } |
|
270 |
jshort app_module_paths_start_index() const { return _app_module_paths_start_index; } |
|
271 |
jshort app_class_paths_start_index() const { return _app_class_paths_start_index; } |
|
272 |
jshort num_module_paths() const { return _num_module_paths; } |
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273 |
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274 |
void set_has_platform_or_app_classes(bool v) { _has_platform_or_app_classes = v; } |
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void set_misc_data_patching_start(char* p) { set_mapped_offset(p, &_misc_data_patching_offset); } |
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void set_serialized_data_start(char* p) { set_mapped_offset(p, &_serialized_data_offset); } |
58096 | 277 |
void set_base_archive_name_size(size_t s) { _base_archive_name_size = s; } |
278 |
void set_base_archive_is_default(bool b) { _base_archive_is_default = b; } |
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279 |
void set_header_size(size_t s) { _header_size = s; } |
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void set_ptrmap_size_in_bits(size_t s) { _ptrmap_size_in_bits = s; } |
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void set_mapped_base_address(char* p) { _mapped_base_address = p; } |
58096 | 282 |
void set_i2i_entry_code_buffers(address p, size_t s) { |
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set_mapped_offset((char*)p, &_i2i_entry_code_buffers_offset); |
58096 | 284 |
_i2i_entry_code_buffers_size = s; |
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} |
58096 | 286 |
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void set_shared_path_table(SharedPathTable table) { |
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set_mapped_offset((char*)table.table(), &_shared_path_table_offset); |
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_shared_path_table_size = table.size(); |
58096 | 290 |
} |
291 |
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void set_final_requested_base(char* b) { |
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_requested_base_address = b; |
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_mapped_base_address = 0; |
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295 |
} |
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296 |
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297 |
SharedPathTable shared_path_table() const { |
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return SharedPathTable((Array<u8>*)from_mapped_offset(_shared_path_table_offset), |
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299 |
_shared_path_table_size); |
58096 | 300 |
} |
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301 |
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bool validate(); |
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int compute_crc(); |
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304 |
|
58096 | 305 |
FileMapRegion* space_at(int i) { |
306 |
assert(is_valid_region(i), "invalid region"); |
|
307 |
return FileMapRegion::cast(&_space[i]); |
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} |
58096 | 309 |
|
54927 | 310 |
void populate(FileMapInfo* info, size_t alignment); |
58096 | 311 |
|
312 |
static bool is_valid_region(int region) { |
|
313 |
return (0 <= region && region < NUM_CDS_REGIONS); |
|
314 |
} |
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}; |
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316 |
|
13195 | 317 |
class FileMapInfo : public CHeapObj<mtInternal> { |
1 | 318 |
private: |
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friend class ManifestStream; |
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friend class VMStructs; |
58096 | 321 |
friend class CDSOffsets; |
322 |
friend class FileMapHeader; |
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1 | 323 |
|
58096 | 324 |
bool _is_static; |
325 |
bool _file_open; |
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bool _is_mapped; |
58096 | 327 |
int _fd; |
328 |
size_t _file_offset; |
|
329 |
const char* _full_path; |
|
330 |
const char* _base_archive_name; |
|
331 |
FileMapHeader* _header; |
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1 | 332 |
|
54927 | 333 |
// TODO: Probably change the following to be non-static |
334 |
static SharedPathTable _shared_path_table; |
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static bool _validating_shared_path_table; |
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336 |
|
1 | 337 |
// FileMapHeader describes the shared space data in the file to be |
338 |
// mapped. This structure gets written to a file. It is not a class, so |
|
339 |
// that the compilers don't add any compiler-private data to it. |
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340 |
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341 |
static FileMapInfo* _current_info; |
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54927 | 342 |
static FileMapInfo* _dynamic_archive_info; |
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static bool _heap_pointers_need_patching; |
54927 | 344 |
static bool _memory_mapping_failed; |
57898 | 345 |
static GrowableArray<const char*>* _non_existent_class_paths; |
346 |
||
58096 | 347 |
FileMapHeader *header() const { return _header; } |
348 |
||
349 |
public: |
|
54927 | 350 |
static bool get_base_archive_name_from_header(const char* archive_name, |
351 |
int* size, char** base_archive_name); |
|
352 |
static bool check_archive(const char* archive_name, bool is_static); |
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static SharedPathTable shared_path_table() { |
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return _shared_path_table; |
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355 |
} |
54927 | 356 |
void restore_shared_path_table(); |
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bool init_from_file(int fd); |
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static void metaspace_pointers_do(MetaspaceClosure* it); |
1 | 359 |
|
57898 | 360 |
void log_paths(const char* msg, int start_idx, int end_idx); |
361 |
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54927 | 362 |
FileMapInfo(bool is_static); |
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363 |
~FileMapInfo(); |
1 | 364 |
|
58096 | 365 |
// Accessors |
366 |
int compute_header_crc() const { return header()->compute_crc(); } |
|
367 |
void set_header_crc(int crc) { header()->set_crc(crc); } |
|
368 |
int space_crc(int i) const { return space_at(i)->crc(); } |
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1 | 369 |
void populate_header(size_t alignment); |
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bool validate_header(); |
1 | 371 |
void invalidate(); |
58096 | 372 |
int crc() const { return header()->crc(); } |
373 |
int version() const { return header()->version(); } |
|
374 |
size_t alignment() const { return header()->alignment(); } |
|
375 |
address narrow_oop_base() const { return header()->narrow_oop_base(); } |
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376 |
int narrow_oop_shift() const { return header()->narrow_oop_shift(); } |
|
377 |
uintx max_heap_size() const { return header()->max_heap_size(); } |
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378 |
address narrow_klass_base() const { return header()->narrow_klass_base(); } |
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379 |
int narrow_klass_shift() const { return header()->narrow_klass_shift(); } |
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380 |
||
381 |
CompressedOops::Mode narrow_oop_mode() const { return header()->narrow_oop_mode(); } |
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382 |
jshort app_module_paths_start_index() const { return header()->app_module_paths_start_index(); } |
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383 |
jshort app_class_paths_start_index() const { return header()->app_class_paths_start_index(); } |
|
384 |
||
385 |
char* misc_data_patching_start() const { return header()->misc_data_patching_start(); } |
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386 |
void set_misc_data_patching_start(char* p) const { header()->set_misc_data_patching_start(p); } |
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char* serialized_data_start() const { return header()->serialized_data_start(); } |
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388 |
void set_serialized_data_start(char* p) const { header()->set_serialized_data_start(p); } |
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389 |
|
54927 | 390 |
bool is_file_position_aligned() const; |
391 |
void align_file_position(); |
|
392 |
||
58096 | 393 |
address i2i_entry_code_buffers() const { return header()->i2i_entry_code_buffers(); } |
394 |
size_t i2i_entry_code_buffers_size() const { return header()->i2i_entry_code_buffers_size(); } |
|
395 |
void set_i2i_entry_code_buffers(address addr, size_t s) const { |
|
396 |
header()->set_i2i_entry_code_buffers(addr, s); |
|
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|
397 |
} |
58096 | 398 |
|
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|
399 |
bool is_static() const { return _is_static; } |
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|
400 |
bool is_mapped() const { return _is_mapped; } |
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|
401 |
void set_is_mapped(bool v) { _is_mapped = v; } |
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|
402 |
const char* full_path() const { return _full_path; } |
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|
403 |
void set_final_requested_base(char* b); |
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|
404 |
|
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changeset
|
405 |
char* requested_base_address() const { return header()->requested_base_address(); } |
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|
406 |
|
58096 | 407 |
|
408 |
class DynamicArchiveHeader* dynamic_header() const { |
|
59070
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|
409 |
assert(!is_static(), "must be"); |
58096 | 410 |
return (DynamicArchiveHeader*)header(); |
37439
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changeset
|
411 |
} |
58096 | 412 |
|
413 |
void set_has_platform_or_app_classes(bool v) { |
|
414 |
header()->set_has_platform_or_app_classes(v); |
|
37439
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|
415 |
} |
58096 | 416 |
bool has_platform_or_app_classes() const { |
417 |
return header()->has_platform_or_app_classes(); |
|
418 |
} |
|
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changeset
|
419 |
|
15936
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8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
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diff
changeset
|
420 |
static FileMapInfo* current_info() { |
4fda1079e8a3
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changeset
|
421 |
CDS_ONLY(return _current_info;) |
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changeset
|
422 |
NOT_CDS(return NULL;) |
4fda1079e8a3
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changeset
|
423 |
} |
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changeset
|
424 |
|
54927 | 425 |
static void set_current_info(FileMapInfo* info) { |
426 |
CDS_ONLY(_current_info = info;) |
|
427 |
} |
|
428 |
||
429 |
static FileMapInfo* dynamic_info() { |
|
430 |
CDS_ONLY(return _dynamic_archive_info;) |
|
431 |
NOT_CDS(return NULL;) |
|
432 |
} |
|
433 |
||
1 | 434 |
static void assert_mark(bool check); |
435 |
||
436 |
// File manipulation. |
|
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|
437 |
bool initialize() NOT_CDS_RETURN_(false); |
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|
438 |
bool open_for_read(); |
54927 | 439 |
void open_for_write(const char* path = NULL); |
1 | 440 |
void write_header(); |
441 |
void write_region(int region, char* base, size_t size, |
|
46746
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changeset
|
442 |
bool read_only, bool allow_exec); |
59070
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|
443 |
void write_bitmap_region(const CHeapBitMap* ptrmap); |
46810
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changeset
|
444 |
size_t write_archive_heap_regions(GrowableArray<MemRegion> *heap_mem, |
51491
187c84a5efe1
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diff
changeset
|
445 |
GrowableArray<ArchiveHeapOopmapInfo> *oopmaps, |
58277
00a98f0aa1b3
8231257: Avoid calling FileMapInfo::write_region twice
iklam
parents:
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diff
changeset
|
446 |
int first_region_id, int max_num_regions); |
51477
e77d7687c831
8209657: Refactor filemap.hpp to simplify integration with Serviceability Agent
iklam
parents:
51439
diff
changeset
|
447 |
void write_bytes(const void* buffer, size_t count); |
e77d7687c831
8209657: Refactor filemap.hpp to simplify integration with Serviceability Agent
iklam
parents:
51439
diff
changeset
|
448 |
void write_bytes_aligned(const void* buffer, size_t count); |
54927 | 449 |
size_t read_bytes(void* buffer, size_t count); |
59070
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changeset
|
450 |
MapArchiveResult map_regions(int regions[], int num_regions, char* mapped_base_address, ReservedSpace rs); |
22ee476cc664
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changeset
|
451 |
void unmap_regions(int regions[], int num_regions); |
46810
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8179302: Pre-resolve constant pool string entries and cache resolved_reference arrays in CDS archive.
jiangli
parents:
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diff
changeset
|
452 |
void map_heap_regions() NOT_CDS_JAVA_HEAP_RETURN; |
7dad333205cd
8179302: Pre-resolve constant pool string entries and cache resolved_reference arrays in CDS archive.
jiangli
parents:
46746
diff
changeset
|
453 |
void fixup_mapped_heap_regions() NOT_CDS_JAVA_HEAP_RETURN; |
51491
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
51477
diff
changeset
|
454 |
void patch_archived_heap_embedded_pointers() NOT_CDS_JAVA_HEAP_RETURN; |
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
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diff
changeset
|
455 |
void patch_archived_heap_embedded_pointers(MemRegion* ranges, int num_ranges, |
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
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diff
changeset
|
456 |
int first_region_idx) NOT_CDS_JAVA_HEAP_RETURN; |
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
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diff
changeset
|
457 |
bool has_heap_regions() NOT_CDS_JAVA_HEAP_RETURN_(false); |
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
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diff
changeset
|
458 |
MemRegion get_heap_regions_range_with_current_oop_encoding_mode() NOT_CDS_JAVA_HEAP_RETURN_(MemRegion()); |
1 | 459 |
void unmap_region(int i); |
27025 | 460 |
bool verify_region_checksum(int i); |
1 | 461 |
void close(); |
462 |
bool is_open() { return _file_open; } |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
463 |
ReservedSpace reserve_shared_memory(); |
1 | 464 |
|
465 |
// JVM/TI RedefineClasses() support: |
|
466 |
// Remap the shared readonly space to shared readwrite, private. |
|
467 |
bool remap_shared_readonly_as_readwrite(); |
|
468 |
||
469 |
// Errors. |
|
26296 | 470 |
static void fail_stop(const char *msg, ...) ATTRIBUTE_PRINTF(1, 2); |
471 |
static void fail_continue(const char *msg, ...) ATTRIBUTE_PRINTF(1, 2); |
|
54927 | 472 |
static bool memory_mapping_failed() { |
473 |
CDS_ONLY(return _memory_mapping_failed;) |
|
474 |
NOT_CDS(return false;) |
|
475 |
} |
|
37439
e8970711113b
8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
ccheung
parents:
36508
diff
changeset
|
476 |
bool is_in_shared_region(const void* p, int idx) NOT_CDS_RETURN_(false); |
19319
0ad35be0733a
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
18483
diff
changeset
|
477 |
|
0ad35be0733a
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
18483
diff
changeset
|
478 |
// Stop CDS sharing and unmap CDS regions. |
0ad35be0733a
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
18483
diff
changeset
|
479 |
static void stop_sharing_and_unmap(const char* msg); |
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
23515
diff
changeset
|
480 |
|
49739
00805b129186
8194812: Extend class-data sharing to support the module path
ccheung
parents:
49364
diff
changeset
|
481 |
static void allocate_shared_path_table(); |
57898 | 482 |
static int add_shared_classpaths(int i, const char* which, ClassPathEntry *cpe, TRAPS); |
49931 | 483 |
static void check_nonempty_dir_in_shared_path_table(); |
49739
00805b129186
8194812: Extend class-data sharing to support the module path
ccheung
parents:
49364
diff
changeset
|
484 |
bool validate_shared_path_table(); |
57898 | 485 |
void validate_non_existent_class_paths(); |
59070
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
486 |
static void set_shared_path_table(FileMapInfo* info) { |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
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diff
changeset
|
487 |
_shared_path_table = info->header()->shared_path_table(); |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
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diff
changeset
|
488 |
} |
57898 | 489 |
static void update_jar_manifest(ClassPathEntry *cpe, SharedClassPathEntry* ent, TRAPS); |
490 |
static int num_non_existent_class_paths(); |
|
491 |
static void record_non_existent_class_path_entry(const char* path); |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
23515
diff
changeset
|
492 |
|
53884
1a7b57d02107
8218751: Do not store original classfiles inside the CDS archive
iklam
parents:
53244
diff
changeset
|
493 |
#if INCLUDE_JVMTI |
54340
2221f042556d
8221351: Crash in KlassFactory::check_shared_class_file_load_hook
iklam
parents:
53884
diff
changeset
|
494 |
static ClassFileStream* open_stream_for_jvmti(InstanceKlass* ik, Handle class_loader, TRAPS); |
53884
1a7b57d02107
8218751: Do not store original classfiles inside the CDS archive
iklam
parents:
53244
diff
changeset
|
495 |
#endif |
1a7b57d02107
8218751: Do not store original classfiles inside the CDS archive
iklam
parents:
53244
diff
changeset
|
496 |
|
49739
00805b129186
8194812: Extend class-data sharing to support the module path
ccheung
parents:
49364
diff
changeset
|
497 |
static SharedClassPathEntry* shared_path(int index) { |
54927 | 498 |
return _shared_path_table.path_at(index); |
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
23515
diff
changeset
|
499 |
} |
49739
00805b129186
8194812: Extend class-data sharing to support the module path
ccheung
parents:
49364
diff
changeset
|
500 |
|
00805b129186
8194812: Extend class-data sharing to support the module path
ccheung
parents:
49364
diff
changeset
|
501 |
static const char* shared_path_name(int index) { |
41739
4a4b9f6a4306
8167333: Invalid source path info might be used when creating ClassFileStream after CFLH transforms a shared classes in some cases
jiangli
parents:
41281
diff
changeset
|
502 |
assert(index >= 0, "Sanity"); |
49739
00805b129186
8194812: Extend class-data sharing to support the module path
ccheung
parents:
49364
diff
changeset
|
503 |
return shared_path(index)->name(); |
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
23515
diff
changeset
|
504 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
23515
diff
changeset
|
505 |
|
49739
00805b129186
8194812: Extend class-data sharing to support the module path
ccheung
parents:
49364
diff
changeset
|
506 |
static int get_number_of_shared_paths() { |
54927 | 507 |
return _shared_path_table.size(); |
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
23515
diff
changeset
|
508 |
} |
46810
7dad333205cd
8179302: Pre-resolve constant pool string entries and cache resolved_reference arrays in CDS archive.
jiangli
parents:
46746
diff
changeset
|
509 |
|
51491
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
51477
diff
changeset
|
510 |
char* region_addr(int idx); |
187c84a5efe1
8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed
iklam
parents:
51477
diff
changeset
|
511 |
|
59070
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
512 |
// The offset of the first core region in the archive, relative to SharedBaseAddress |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
513 |
size_t mapping_base_offset() const { return first_core_space()->mapping_offset(); } |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
514 |
// The offset of the (exclusive) end of the last core region in this archive, relative to SharedBaseAddress |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
515 |
size_t mapping_end_offset() const { return last_core_space()->mapping_end_offset(); } |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
516 |
|
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
517 |
char* mapped_base() const { return first_core_space()->mapped_base(); } |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
518 |
char* mapped_end() const { return last_core_space()->mapped_end(); } |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
519 |
|
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
520 |
// Non-zero if the archive needs to be mapped a non-default location due to ASLR. |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
521 |
intx relocation_delta() const { |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
522 |
return header()->mapped_base_address() - header()->requested_base_address(); |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
523 |
} |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
524 |
|
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
525 |
FileMapRegion* first_core_space() const; |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
526 |
FileMapRegion* last_core_space() const; |
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
527 |
|
46810
7dad333205cd
8179302: Pre-resolve constant pool string entries and cache resolved_reference arrays in CDS archive.
jiangli
parents:
46746
diff
changeset
|
528 |
private: |
58277
00a98f0aa1b3
8231257: Avoid calling FileMapInfo::write_region twice
iklam
parents:
58096
diff
changeset
|
529 |
void seek_to_position(size_t pos); |
55524
b279ae9843b8
8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents:
54927
diff
changeset
|
530 |
char* skip_first_path_entry(const char* path) NOT_CDS_RETURN_(NULL); |
b279ae9843b8
8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents:
54927
diff
changeset
|
531 |
int num_paths(const char* path) NOT_CDS_RETURN_(0); |
57897
e2e315f1aa63
8230168: Use ClasspathStream for FileMapInfo::create_path_array
iklam
parents:
55535
diff
changeset
|
532 |
GrowableArray<const char*>* create_path_array(const char* path) NOT_CDS_RETURN_(NULL); |
59070
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
533 |
bool classpath_failure(const char* msg, const char* name) NOT_CDS_RETURN_(false); |
57897
e2e315f1aa63
8230168: Use ClasspathStream for FileMapInfo::create_path_array
iklam
parents:
55535
diff
changeset
|
534 |
bool check_paths(int shared_path_start_idx, int num_paths, |
e2e315f1aa63
8230168: Use ClasspathStream for FileMapInfo::create_path_array
iklam
parents:
55535
diff
changeset
|
535 |
GrowableArray<const char*>* rp_array) NOT_CDS_RETURN_(false); |
55535
df1925d3d409
8226967: Minimal VM: FALSE was not declared in this scope
aoqi
parents:
55524
diff
changeset
|
536 |
bool validate_boot_class_paths() NOT_CDS_RETURN_(false); |
df1925d3d409
8226967: Minimal VM: FALSE was not declared in this scope
aoqi
parents:
55524
diff
changeset
|
537 |
bool validate_app_class_paths(int shared_app_paths_len) NOT_CDS_RETURN_(false); |
46810
7dad333205cd
8179302: Pre-resolve constant pool string entries and cache resolved_reference arrays in CDS archive.
jiangli
parents:
46746
diff
changeset
|
538 |
bool map_heap_data(MemRegion **heap_mem, int first, int max, int* num, |
7dad333205cd
8179302: Pre-resolve constant pool string entries and cache resolved_reference arrays in CDS archive.
jiangli
parents:
46746
diff
changeset
|
539 |
bool is_open = false) NOT_CDS_JAVA_HEAP_RETURN_(false); |
54927 | 540 |
bool region_crc_check(char* buf, size_t size, int expected_crc) NOT_CDS_RETURN_(false); |
52674
c9325aa887da
8214118: HeapRegions marked as archive even if CDS mapping fails
sjohanss
parents:
52596
diff
changeset
|
541 |
void dealloc_archive_heap_regions(MemRegion* regions, int num, bool is_open) NOT_CDS_JAVA_HEAP_RETURN; |
59070
22ee476cc664
8231610: Relocate the CDS archive if it cannot be mapped to the requested address
iklam
parents:
58278
diff
changeset
|
542 |
void map_heap_regions_impl() NOT_CDS_JAVA_HEAP_RETURN; |
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char* map_relocation_bitmap(size_t& bitmap_size); |
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544 |
MapArchiveResult map_region(int i, intx addr_delta, char* mapped_base_address, ReservedSpace rs); |
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545 |
bool read_region(int i, char* base, size_t size); |
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bool relocate_pointers(intx addr_delta); |
51477
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547 |
|
58096 | 548 |
FileMapRegion* space_at(int i) const { |
549 |
return header()->space_at(i); |
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} |
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551 |
|
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552 |
// The starting address of spc, as calculated with CompressedOop::decode_non_null() |
58096 | 553 |
address start_address_as_decoded_with_current_oop_encoding_mode(FileMapRegion* spc) { |
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554 |
return decode_start_address(spc, true); |
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555 |
} |
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|
556 |
|
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557 |
// The starting address of spc, as calculated with HeapShared::decode_from_archive() |
58096 | 558 |
address start_address_as_decoded_from_archive(FileMapRegion* spc) { |
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559 |
return decode_start_address(spc, false); |
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} |
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|
58096 | 562 |
address decode_start_address(FileMapRegion* spc, bool with_current_oop_encoding_mode); |
53884
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563 |
|
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|
564 |
#if INCLUDE_JVMTI |
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565 |
static ClassPathEntry** _classpath_entries_for_jvmti; |
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static ClassPathEntry* get_classpath_entry_for_jvmti(int i, TRAPS); |
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#endif |
1 | 568 |
}; |
7397 | 569 |
|
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570 |
#endif // SHARE_MEMORY_FILEMAP_HPP |