| /* |
| * Copyright (c) 2003, 2023, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_CDS_FILEMAP_HPP |
| #define SHARE_CDS_FILEMAP_HPP |
| |
| #include "cds/metaspaceShared.hpp" |
| #include "include/cds.h" |
| #include "logging/logLevel.hpp" |
| #include "memory/allocation.hpp" |
| #include "oops/array.hpp" |
| #include "oops/compressedOops.hpp" |
| #include "utilities/align.hpp" |
| |
| // To understand the layout of the CDS archive file: |
| // |
| // java -Xlog:cds+map=info:file=cds.map:none:filesize=0 |
| // java -Xlog:cds+map=debug:file=cds.map:none:filesize=0 |
| // java -Xlog:cds+map=trace:file=cds.map:none:filesize=0 |
| |
| static const int JVM_IDENT_MAX = 256; |
| |
| class ArchiveHeapInfo; |
| class BitMapView; |
| class CHeapBitMap; |
| class ClassFileStream; |
| class ClassLoaderData; |
| class ClassPathEntry; |
| class outputStream; |
| |
| class SharedClassPathEntry : public MetaspaceObj { |
| enum { |
| modules_image_entry, |
| jar_entry, |
| dir_entry, |
| non_existent_entry, |
| unknown_entry |
| }; |
| |
| void set_name(const char* name, TRAPS); |
| |
| u1 _type; |
| bool _is_module_path; |
| bool _from_class_path_attr; |
| time_t _timestamp; // jar timestamp, 0 if is directory, modules image or other |
| int64_t _filesize; // jar/jimage file size, -1 if is directory, -2 if other |
| Array<char>* _name; |
| Array<u1>* _manifest; |
| |
| public: |
| SharedClassPathEntry() : _type(0), _is_module_path(false), |
| _from_class_path_attr(false), _timestamp(0), |
| _filesize(0), _name(nullptr), _manifest(nullptr) {} |
| static int size() { |
| static_assert(is_aligned(sizeof(SharedClassPathEntry), wordSize), "must be"); |
| return (int)(sizeof(SharedClassPathEntry) / wordSize); |
| } |
| void init(bool is_modules_image, bool is_module_path, ClassPathEntry* cpe, TRAPS); |
| void init_as_non_existent(const char* path, TRAPS); |
| void metaspace_pointers_do(MetaspaceClosure* it); |
| MetaspaceObj::Type type() const { return SharedClassPathEntryType; } |
| bool validate(bool is_class_path = true) const; |
| |
| // The _timestamp only gets set for jar files. |
| bool has_timestamp() const { |
| return _timestamp != 0; |
| } |
| bool is_dir() const { return _type == dir_entry; } |
| bool is_modules_image() const { return _type == modules_image_entry; } |
| bool is_jar() const { return _type == jar_entry; } |
| bool from_class_path_attr() { return _from_class_path_attr; } |
| time_t timestamp() const { return _timestamp; } |
| const char* name() const; |
| const char* manifest() const { |
| return (_manifest == nullptr) ? nullptr : (const char*)_manifest->data(); |
| } |
| int manifest_size() const { |
| return (_manifest == nullptr) ? 0 : _manifest->length(); |
| } |
| void set_manifest(Array<u1>* manifest) { |
| _manifest = manifest; |
| } |
| bool check_non_existent() const; |
| void copy_from(SharedClassPathEntry* ent, ClassLoaderData* loader_data, TRAPS); |
| bool in_named_module() { |
| return is_modules_image() || // modules image doesn't contain unnamed modules |
| _is_module_path; // module path doesn't contain unnamed modules |
| } |
| }; |
| |
| class SharedPathTable { |
| Array<SharedClassPathEntry*>* _entries; |
| public: |
| SharedPathTable() : _entries(nullptr) {} |
| SharedPathTable(Array<SharedClassPathEntry*>* entries) : _entries(entries) {} |
| |
| void dumptime_init(ClassLoaderData* loader_data, TRAPS); |
| void metaspace_pointers_do(MetaspaceClosure* it); |
| |
| int size() { |
| return _entries == nullptr ? 0 : _entries->length(); |
| } |
| SharedClassPathEntry* path_at(int index) { |
| return _entries->at(index); |
| } |
| Array<SharedClassPathEntry*>* table() {return _entries;} |
| void set_table(Array<SharedClassPathEntry*>* table) {_entries = table;} |
| }; |
| |
| |
| class FileMapRegion: private CDSFileMapRegion { |
| BitMapView bitmap_view(bool is_oopmap); |
| public: |
| void assert_is_heap_region() const { |
| assert(_is_heap_region, "must be heap region"); |
| } |
| void assert_is_not_heap_region() const { |
| assert(!_is_heap_region, "must not be heap region"); |
| } |
| |
| static FileMapRegion* cast(CDSFileMapRegion* p) { |
| return (FileMapRegion*)p; |
| } |
| |
| // Accessors |
| int crc() const { return _crc; } |
| size_t file_offset() const { return _file_offset; } |
| size_t mapping_offset() const { return _mapping_offset; } |
| size_t mapping_end_offset() const { return _mapping_offset + used_aligned(); } |
| size_t used() const { return _used; } |
| size_t used_aligned() const; // aligned up to MetaspaceShared::core_region_alignment() |
| char* mapped_base() const { return _mapped_base; } |
| char* mapped_end() const { return mapped_base() + used_aligned(); } |
| bool read_only() const { return _read_only != 0; } |
| bool allow_exec() const { return _allow_exec != 0; } |
| bool mapped_from_file() const { return _mapped_from_file != 0; } |
| size_t oopmap_offset() const { assert_is_heap_region(); return _oopmap_offset; } |
| size_t oopmap_size_in_bits() const { assert_is_heap_region(); return _oopmap_size_in_bits; } |
| |
| void set_file_offset(size_t s) { _file_offset = s; } |
| void set_read_only(bool v) { _read_only = v; } |
| void set_mapped_base(char* p) { _mapped_base = p; } |
| void set_mapped_from_file(bool v) { _mapped_from_file = v; } |
| void init(int region_index, size_t mapping_offset, size_t size, bool read_only, |
| bool allow_exec, int crc); |
| void init_oopmap(size_t offset, size_t size_in_bits); |
| void init_ptrmap(size_t offset, size_t size_in_bits); |
| BitMapView oopmap_view(); |
| BitMapView ptrmap_view(); |
| bool has_ptrmap() { return _ptrmap_size_in_bits != 0; } |
| |
| bool check_region_crc() const; |
| void print(outputStream* st, int region_index); |
| }; |
| |
| class FileMapHeader: private CDSFileMapHeaderBase { |
| friend class CDSConstants; |
| friend class VMStructs; |
| |
| private: |
| // The following fields record the states of the VM during dump time. |
| // They are compared with the runtime states to see if the archive |
| // can be used. |
| size_t _core_region_alignment; // how shared archive should be aligned |
| int _obj_alignment; // value of ObjectAlignmentInBytes |
| address _narrow_oop_base; // compressed oop encoding base |
| int _narrow_oop_shift; // compressed oop encoding shift |
| bool _compact_strings; // value of CompactStrings |
| uintx _max_heap_size; // java max heap size during dumping |
| CompressedOops::Mode _narrow_oop_mode; // compressed oop encoding mode |
| int _narrow_klass_shift; // save narrow klass base and shift |
| bool _compressed_oops; // save the flag UseCompressedOops |
| bool _compressed_class_ptrs; // save the flag UseCompressedClassPointers |
| size_t _cloned_vtables_offset; // The address of the first cloned vtable |
| size_t _serialized_data_offset; // Data accessed using {ReadClosure,WriteClosure}::serialize() |
| address _heap_begin; // heap begin at dump time. |
| address _heap_end; // heap end at dump time. |
| bool _has_non_jar_in_classpath; // non-jar file entry exists in classpath |
| unsigned int _common_app_classpath_prefix_size; // size of the common prefix of app class paths |
| // 0 if no common prefix exists |
| |
| // The following fields are all sanity checks for whether this archive |
| // will function correctly with this JVM and the bootclasspath it's |
| // invoked with. |
| char _jvm_ident[JVM_IDENT_MAX]; // identifier string of the jvm that created this dump |
| |
| // The following is a table of all the boot/app/module path entries that were used |
| // during dumping. At run time, we validate these entries according to their |
| // SharedClassPathEntry::_type. See: |
| // check_nonempty_dir_in_shared_path_table() |
| // validate_shared_path_table() |
| // validate_non_existent_class_paths() |
| size_t _shared_path_table_offset; |
| |
| jshort _app_class_paths_start_index; // Index of first app classpath entry |
| jshort _app_module_paths_start_index; // Index of first module path entry |
| jshort _num_module_paths; // number of module path entries |
| jshort _max_used_path_index; // max path index referenced during CDS dump |
| bool _verify_local; // BytecodeVerificationLocal setting |
| bool _verify_remote; // BytecodeVerificationRemote setting |
| bool _has_platform_or_app_classes; // Archive contains app classes |
| char* _requested_base_address; // Archive relocation is not necessary if we map with this base address. |
| char* _mapped_base_address; // Actual base address where archive is mapped. |
| |
| bool _allow_archiving_with_java_agent; // setting of the AllowArchivingWithJavaAgent option |
| bool _use_optimized_module_handling;// No module-relation VM options were specified, so we can skip |
| // some expensive operations. |
| bool _use_full_module_graph; // Can we use the full archived module graph? |
| size_t _ptrmap_size_in_bits; // Size of pointer relocation bitmap |
| char* from_mapped_offset(size_t offset) const { |
| return mapped_base_address() + offset; |
| } |
| void set_as_offset(char* p, size_t *offset); |
| public: |
| // Accessors -- fields declared in GenericCDSFileMapHeader |
| unsigned int magic() const { return _generic_header._magic; } |
| int crc() const { return _generic_header._crc; } |
| int version() const { return _generic_header._version; } |
| unsigned int header_size() const { return _generic_header._header_size; } |
| unsigned int base_archive_name_offset() const { return _generic_header._base_archive_name_offset; } |
| unsigned int base_archive_name_size() const { return _generic_header._base_archive_name_size; } |
| unsigned int common_app_classpath_prefix_size() const { return _common_app_classpath_prefix_size; } |
| |
| void set_magic(unsigned int m) { _generic_header._magic = m; } |
| void set_crc(int crc_value) { _generic_header._crc = crc_value; } |
| void set_version(int v) { _generic_header._version = v; } |
| void set_header_size(unsigned int s) { _generic_header._header_size = s; } |
| void set_base_archive_name_offset(unsigned int s) { _generic_header._base_archive_name_offset = s; } |
| void set_base_archive_name_size(unsigned int s) { _generic_header._base_archive_name_size = s; } |
| void set_common_app_classpath_prefix_size(unsigned int s) { _common_app_classpath_prefix_size = s; } |
| |
| size_t core_region_alignment() const { return _core_region_alignment; } |
| int obj_alignment() const { return _obj_alignment; } |
| address narrow_oop_base() const { return _narrow_oop_base; } |
| int narrow_oop_shift() const { return _narrow_oop_shift; } |
| bool compact_strings() const { return _compact_strings; } |
| uintx max_heap_size() const { return _max_heap_size; } |
| CompressedOops::Mode narrow_oop_mode() const { return _narrow_oop_mode; } |
| int narrow_klass_shift() const { return _narrow_klass_shift; } |
| address narrow_klass_base() const { return (address)mapped_base_address(); } |
| char* cloned_vtables() const { return from_mapped_offset(_cloned_vtables_offset); } |
| char* serialized_data() const { return from_mapped_offset(_serialized_data_offset); } |
| address heap_begin() const { return _heap_begin; } |
| address heap_end() const { return _heap_end; } |
| const char* jvm_ident() const { return _jvm_ident; } |
| char* requested_base_address() const { return _requested_base_address; } |
| char* mapped_base_address() const { return _mapped_base_address; } |
| bool has_platform_or_app_classes() const { return _has_platform_or_app_classes; } |
| bool has_non_jar_in_classpath() const { return _has_non_jar_in_classpath; } |
| size_t ptrmap_size_in_bits() const { return _ptrmap_size_in_bits; } |
| bool compressed_oops() const { return _compressed_oops; } |
| bool compressed_class_pointers() const { return _compressed_class_ptrs; } |
| // FIXME: These should really return int |
| jshort max_used_path_index() const { return _max_used_path_index; } |
| jshort app_module_paths_start_index() const { return _app_module_paths_start_index; } |
| jshort app_class_paths_start_index() const { return _app_class_paths_start_index; } |
| jshort num_module_paths() const { return _num_module_paths; } |
| |
| void set_has_platform_or_app_classes(bool v) { _has_platform_or_app_classes = v; } |
| void set_cloned_vtables(char* p) { set_as_offset(p, &_cloned_vtables_offset); } |
| void set_serialized_data(char* p) { set_as_offset(p, &_serialized_data_offset); } |
| void set_ptrmap_size_in_bits(size_t s) { _ptrmap_size_in_bits = s; } |
| void set_mapped_base_address(char* p) { _mapped_base_address = p; } |
| void copy_base_archive_name(const char* name); |
| |
| void set_shared_path_table(SharedPathTable table) { |
| set_as_offset((char*)table.table(), &_shared_path_table_offset); |
| } |
| |
| void set_requested_base(char* b) { |
| _requested_base_address = b; |
| _mapped_base_address = 0; |
| } |
| |
| SharedPathTable shared_path_table() const { |
| return SharedPathTable((Array<SharedClassPathEntry*>*) |
| from_mapped_offset(_shared_path_table_offset)); |
| } |
| |
| bool validate(); |
| int compute_crc(); |
| |
| FileMapRegion* region_at(int i) { |
| assert(is_valid_region(i), "invalid region"); |
| return FileMapRegion::cast(&_regions[i]); |
| } |
| |
| void populate(FileMapInfo *info, size_t core_region_alignment, size_t header_size, |
| size_t base_archive_name_size, size_t base_archive_name_offset, |
| size_t common_app_classpath_size); |
| static bool is_valid_region(int region) { |
| return (0 <= region && region < NUM_CDS_REGIONS); |
| } |
| |
| void print(outputStream* st); |
| }; |
| |
| class FileMapInfo : public CHeapObj<mtInternal> { |
| private: |
| friend class ManifestStream; |
| friend class VMStructs; |
| friend class ArchiveBuilder; |
| friend class CDSOffsets; |
| friend class FileMapHeader; |
| |
| bool _is_static; |
| bool _file_open; |
| bool _is_mapped; |
| int _fd; |
| size_t _file_offset; |
| const char* _full_path; |
| const char* _base_archive_name; |
| FileMapHeader* _header; |
| |
| static SharedPathTable _shared_path_table; |
| static bool _validating_shared_path_table; |
| |
| // FileMapHeader describes the shared space data in the file to be |
| // mapped. This structure gets written to a file. It is not a class, so |
| // that the compilers don't add any compiler-private data to it. |
| |
| static FileMapInfo* _current_info; |
| static FileMapInfo* _dynamic_archive_info; |
| static bool _heap_pointers_need_patching; |
| static bool _memory_mapping_failed; |
| static GrowableArray<const char*>* _non_existent_class_paths; |
| |
| public: |
| FileMapHeader *header() const { return _header; } |
| static bool get_base_archive_name_from_header(const char* archive_name, |
| char** base_archive_name); |
| static SharedPathTable shared_path_table() { |
| return _shared_path_table; |
| } |
| |
| bool init_from_file(int fd); |
| static void metaspace_pointers_do(MetaspaceClosure* it) { |
| _shared_path_table.metaspace_pointers_do(it); |
| } |
| |
| void log_paths(const char* msg, int start_idx, int end_idx); |
| |
| FileMapInfo(const char* full_apth, bool is_static); |
| ~FileMapInfo(); |
| |
| // Accessors |
| int compute_header_crc() const { return header()->compute_crc(); } |
| void set_header_crc(int crc) { header()->set_crc(crc); } |
| int region_crc(int i) const { return region_at(i)->crc(); } |
| void populate_header(size_t core_region_alignment); |
| bool validate_header(); |
| void invalidate(); |
| int crc() const { return header()->crc(); } |
| int version() const { return header()->version(); } |
| unsigned int magic() const { return header()->magic(); } |
| address narrow_oop_base() const { return header()->narrow_oop_base(); } |
| int narrow_oop_shift() const { return header()->narrow_oop_shift(); } |
| uintx max_heap_size() const { return header()->max_heap_size(); } |
| address narrow_klass_base() const { return header()->narrow_klass_base(); } |
| int narrow_klass_shift() const { return header()->narrow_klass_shift(); } |
| size_t core_region_alignment() const { return header()->core_region_alignment(); } |
| |
| CompressedOops::Mode narrow_oop_mode() const { return header()->narrow_oop_mode(); } |
| jshort app_module_paths_start_index() const { return header()->app_module_paths_start_index(); } |
| jshort app_class_paths_start_index() const { return header()->app_class_paths_start_index(); } |
| |
| char* cloned_vtables() const { return header()->cloned_vtables(); } |
| void set_cloned_vtables(char* p) const { header()->set_cloned_vtables(p); } |
| char* serialized_data() const { return header()->serialized_data(); } |
| void set_serialized_data(char* p) const { header()->set_serialized_data(p); } |
| |
| bool is_file_position_aligned() const; |
| void align_file_position(); |
| |
| bool is_static() const { return _is_static; } |
| bool is_mapped() const { return _is_mapped; } |
| void set_is_mapped(bool v) { _is_mapped = v; } |
| const char* full_path() const { return _full_path; } |
| |
| void set_requested_base(char* b) { header()->set_requested_base(b); } |
| char* requested_base_address() const { return header()->requested_base_address(); } |
| |
| class DynamicArchiveHeader* dynamic_header() const { |
| assert(!is_static(), "must be"); |
| return (DynamicArchiveHeader*)header(); |
| } |
| |
| void set_has_platform_or_app_classes(bool v) { |
| header()->set_has_platform_or_app_classes(v); |
| } |
| bool has_platform_or_app_classes() const { |
| return header()->has_platform_or_app_classes(); |
| } |
| |
| static FileMapInfo* current_info() { |
| CDS_ONLY(return _current_info;) |
| NOT_CDS(return nullptr;) |
| } |
| |
| static void set_current_info(FileMapInfo* info) { |
| CDS_ONLY(_current_info = info;) |
| } |
| |
| static FileMapInfo* dynamic_info() { |
| CDS_ONLY(return _dynamic_archive_info;) |
| NOT_CDS(return nullptr;) |
| } |
| |
| static void assert_mark(bool check); |
| |
| // File manipulation. |
| bool initialize() NOT_CDS_RETURN_(false); |
| bool open_for_read(); |
| void open_for_write(); |
| void write_header(); |
| void write_region(int region, char* base, size_t size, |
| bool read_only, bool allow_exec); |
| char* write_bitmap_region(const CHeapBitMap* ptrmap, ArchiveHeapInfo* heap_info, |
| size_t &size_in_bytes); |
| size_t write_heap_region(ArchiveHeapInfo* heap_info); |
| void write_bytes(const void* buffer, size_t count); |
| void write_bytes_aligned(const void* buffer, size_t count); |
| size_t read_bytes(void* buffer, size_t count); |
| static size_t readonly_total(); |
| MapArchiveResult map_regions(int regions[], int num_regions, char* mapped_base_address, ReservedSpace rs); |
| void unmap_regions(int regions[], int num_regions); |
| void map_or_load_heap_region() NOT_CDS_JAVA_HEAP_RETURN; |
| void fixup_mapped_heap_region() NOT_CDS_JAVA_HEAP_RETURN; |
| void patch_heap_embedded_pointers() NOT_CDS_JAVA_HEAP_RETURN; |
| bool has_heap_region() NOT_CDS_JAVA_HEAP_RETURN_(false); |
| MemRegion get_heap_region_requested_range() NOT_CDS_JAVA_HEAP_RETURN_(MemRegion()); |
| bool read_region(int i, char* base, size_t size, bool do_commit); |
| char* map_bitmap_region(); |
| void unmap_region(int i); |
| void close(); |
| bool is_open() { return _file_open; } |
| ReservedSpace reserve_shared_memory(); |
| |
| // JVM/TI RedefineClasses() support: |
| // Remap the shared readonly space to shared readwrite, private. |
| bool remap_shared_readonly_as_readwrite(); |
| |
| static bool memory_mapping_failed() { |
| CDS_ONLY(return _memory_mapping_failed;) |
| NOT_CDS(return false;) |
| } |
| |
| static void allocate_shared_path_table(TRAPS); |
| static int add_shared_classpaths(int i, const char* which, ClassPathEntry *cpe, TRAPS); |
| static void check_nonempty_dir_in_shared_path_table(); |
| bool check_module_paths(); |
| bool validate_shared_path_table(); |
| void validate_non_existent_class_paths(); |
| static void set_shared_path_table(FileMapInfo* info) { |
| _shared_path_table = info->header()->shared_path_table(); |
| } |
| static void update_jar_manifest(ClassPathEntry *cpe, SharedClassPathEntry* ent, TRAPS); |
| static int num_non_existent_class_paths(); |
| static void record_non_existent_class_path_entry(const char* path); |
| |
| #if INCLUDE_JVMTI |
| // Caller needs a ResourceMark because parts of the returned cfs are resource-allocated. |
| static ClassFileStream* open_stream_for_jvmti(InstanceKlass* ik, Handle class_loader, TRAPS); |
| #endif |
| |
| static SharedClassPathEntry* shared_path(int index) { |
| return _shared_path_table.path_at(index); |
| } |
| |
| static const char* shared_path_name(int index) { |
| assert(index >= 0, "Sanity"); |
| return shared_path(index)->name(); |
| } |
| |
| static int get_number_of_shared_paths() { |
| return _shared_path_table.size(); |
| } |
| |
| static int get_module_shared_path_index(Symbol* location) NOT_CDS_RETURN_(-1); |
| |
| // The offset of the first core region in the archive, relative to SharedBaseAddress |
| size_t mapping_base_offset() const { return first_core_region()->mapping_offset(); } |
| // The offset of the (exclusive) end of the last core region in this archive, relative to SharedBaseAddress |
| size_t mapping_end_offset() const { return last_core_region()->mapping_end_offset(); } |
| |
| char* mapped_base() const { return first_core_region()->mapped_base(); } |
| char* mapped_end() const { return last_core_region()->mapped_end(); } |
| |
| // Non-zero if the archive needs to be mapped a non-default location due to ASLR. |
| intx relocation_delta() const { |
| return header()->mapped_base_address() - header()->requested_base_address(); |
| } |
| |
| FileMapRegion* first_core_region() const; |
| FileMapRegion* last_core_region() const; |
| |
| FileMapRegion* region_at(int i) const { |
| return header()->region_at(i); |
| } |
| |
| void print(outputStream* st) const; |
| |
| const char* vm_version() { |
| return header()->jvm_ident(); |
| } |
| |
| private: |
| void seek_to_position(size_t pos); |
| char* skip_first_path_entry(const char* path) NOT_CDS_RETURN_(nullptr); |
| int num_paths(const char* path) NOT_CDS_RETURN_(0); |
| bool check_paths_existence(const char* paths) NOT_CDS_RETURN_(false); |
| GrowableArray<const char*>* create_dumptime_app_classpath_array() NOT_CDS_RETURN_(nullptr); |
| GrowableArray<const char*>* create_path_array(const char* path) NOT_CDS_RETURN_(nullptr); |
| bool classpath_failure(const char* msg, const char* name) NOT_CDS_RETURN_(false); |
| unsigned int longest_common_app_classpath_prefix_len(int num_paths, |
| GrowableArray<const char*>* rp_array) |
| NOT_CDS_RETURN_(0); |
| bool check_paths(int shared_path_start_idx, int num_paths, |
| GrowableArray<const char*>* rp_array, |
| unsigned int dumptime_prefix_len, |
| unsigned int runtime_prefix_len) NOT_CDS_RETURN_(false); |
| bool validate_boot_class_paths() NOT_CDS_RETURN_(false); |
| bool validate_app_class_paths(int shared_app_paths_len) NOT_CDS_RETURN_(false); |
| bool map_heap_region_impl() NOT_CDS_JAVA_HEAP_RETURN_(false); |
| void dealloc_heap_region() NOT_CDS_JAVA_HEAP_RETURN; |
| bool can_use_heap_region(); |
| bool load_heap_region() NOT_CDS_JAVA_HEAP_RETURN_(false); |
| bool map_heap_region() NOT_CDS_JAVA_HEAP_RETURN_(false); |
| void init_heap_region_relocation(); |
| MapArchiveResult map_region(int i, intx addr_delta, char* mapped_base_address, ReservedSpace rs); |
| bool relocate_pointers_in_core_regions(intx addr_delta); |
| |
| static MemRegion _mapped_heap_memregion; |
| |
| public: |
| address heap_region_dumptime_address() NOT_CDS_JAVA_HEAP_RETURN_(nullptr); |
| address heap_region_requested_address() NOT_CDS_JAVA_HEAP_RETURN_(nullptr); |
| address heap_region_mapped_address() NOT_CDS_JAVA_HEAP_RETURN_(nullptr); |
| narrowOop encoded_heap_region_dumptime_address(); |
| |
| private: |
| |
| #if INCLUDE_JVMTI |
| static ClassPathEntry** _classpath_entries_for_jvmti; |
| static ClassPathEntry* get_classpath_entry_for_jvmti(int i, TRAPS); |
| #endif |
| }; |
| |
| #endif // SHARE_CDS_FILEMAP_HPP |
