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*/
#ifndef SHARE_CDS_HEAPSHARED_HPP
#define SHARE_CDS_HEAPSHARED_HPP
+ #include "cds/cds_globals.hpp"
#include "cds/dumpTimeClassInfo.hpp"
#include "cds/metaspaceShared.hpp"
#include "classfile/compactHashtable.hpp"
#include "classfile/javaClasses.hpp"
#include "gc/shared/gc_globals.hpp"
class HeapShared: AllStatic {
friend class VerifySharedOopClosure;
public:
- // Can this VM write a heap region into the CDS archive? Currently only {G1|Parallel|Serial}+compressed_cp
+ // Can this VM write a heap region into the CDS archive? Currently only {G1|Parallel|Serial|Epsilon|Shenandoah}+compressed_cp
static bool can_write() {
CDS_JAVA_HEAP_ONLY(
if (_disable_writing) {
return false;
}
- return (UseG1GC || UseParallelGC || UseSerialGC) && UseCompressedClassPointers;
+ return (UseG1GC || UseParallelGC || UseSerialGC || UseEpsilonGC || UseShenandoahGC) && UseCompressedClassPointers;
)
NOT_CDS_JAVA_HEAP(return false;)
}
static void disable_writing() {
}
static bool is_subgraph_root_class(InstanceKlass* ik);
// Scratch objects for archiving Klass::java_mirror()
- static oop scratch_java_mirror(BasicType t) NOT_CDS_JAVA_HEAP_RETURN_(nullptr);
- static oop scratch_java_mirror(Klass* k) NOT_CDS_JAVA_HEAP_RETURN_(nullptr);
+ static oop scratch_java_mirror(BasicType t) NOT_CDS_JAVA_HEAP_RETURN_(nullptr);
+ static oop scratch_java_mirror(Klass* k) NOT_CDS_JAVA_HEAP_RETURN_(nullptr);
+ static oop scratch_java_mirror(oop java_mirror) NOT_CDS_JAVA_HEAP_RETURN_(nullptr);
static bool is_archived_boot_layer_available(JavaThread* current) NOT_CDS_JAVA_HEAP_RETURN_(false);
+ static void start_finding_archivable_hidden_classes() NOT_CDS_JAVA_HEAP_RETURN;
+ static void find_archivable_hidden_classes_in_object(oop o) NOT_CDS_JAVA_HEAP_RETURN;
+ static void end_finding_archivable_hidden_classes() NOT_CDS_JAVA_HEAP_RETURN;
+
private:
#if INCLUDE_CDS_JAVA_HEAP
static bool _disable_writing;
static DumpedInternedStrings *_dumped_interned_strings;
static size_t _total_obj_count;
static size_t _total_obj_size; // in HeapWords
static void count_allocation(size_t size);
static void print_stats();
+ static void debug_trace();
public:
static unsigned oop_hash(oop const& p);
static unsigned string_oop_hash(oop const& string) {
return java_lang_String::hash_code(string);
}
+ class CopyKlassSubGraphInfoToArchive;
+
class CachedOopInfo {
// Used by CDSHeapVerifier.
oop _orig_referrer;
// The location of this object inside ArchiveHeapWriter::_buffer
> RunTimeKlassSubGraphInfoTable;
static DumpTimeKlassSubGraphInfoTable* _dump_time_subgraph_info_table;
static RunTimeKlassSubGraphInfoTable _run_time_subgraph_info_table;
+ class FindHiddenClassesOopClosure;
+ static void find_archivable_hidden_classes_helper(ArchivableStaticFieldInfo fields[]);
+
static CachedOopInfo make_cached_oop_info(oop obj);
+ static ArchivedKlassSubGraphInfoRecord* archive_subgraph_info(KlassSubGraphInfo* info);
static void archive_object_subgraphs(ArchivableStaticFieldInfo fields[],
bool is_full_module_graph);
// Archive object sub-graph starting from the given static field
// in Klass k's mirror.
// of the classes defined in the <xxx>_archive_subgraph_entry_fields[] arrays:
// - interned strings
// - Klass::java_mirror()
// - ConstantPool::resolved_references()
static KlassSubGraphInfo* _default_subgraph_info;
+ static ArchivedKlassSubGraphInfoRecord* _runtime_default_subgraph_info;
- static GrowableArrayCHeap<oop, mtClassShared>* _pending_roots;
+ static GrowableArrayCHeap<OopHandle, mtClassShared>* _pending_roots;
+ static GrowableArrayCHeap<oop, mtClassShared>* _trace; // for debugging unarchivable objects
+ static GrowableArrayCHeap<const char*, mtClassShared>* _context; // for debugging unarchivable objects
static GrowableArrayCHeap<OopHandle, mtClassShared>* _root_segments;
static int _root_segment_max_size_elems;
static OopHandle _scratch_basic_type_mirrors[T_VOID+1];
static MetaspaceObjToOopHandleTable* _scratch_java_mirror_table;
static MetaspaceObjToOopHandleTable* _scratch_references_table;
assert(_seen_objects_table != nullptr, "must be");
delete _seen_objects_table;
_seen_objects_table = nullptr;
}
+ class ArchivingObjectMark;
+ class ContextMark;
+
// Statistics (for one round of start_recording_subgraph ... done_recording_subgraph)
static int _num_new_walked_objs;
static int _num_new_archived_objs;
static int _num_old_recorded_klasses;
static void done_recording_subgraph(InstanceKlass *k, const char* klass_name);
static bool has_been_seen_during_subgraph_recording(oop obj);
static void set_has_been_seen_during_subgraph_recording(oop obj);
static bool archive_object(oop obj);
-
+ static void copy_aot_initialized_mirror(Klass* orig_k, oop orig_mirror, oop m);
static void copy_interned_strings();
static void resolve_classes_for_subgraphs(JavaThread* current, ArchivableStaticFieldInfo fields[]);
static void resolve_classes_for_subgraph_of(JavaThread* current, Klass* k);
static void clear_archived_roots_of(Klass* k);
static const ArchivedKlassSubGraphInfoRecord*
resolve_or_init_classes_for_subgraph_of(Klass* k, bool do_init, TRAPS);
+ static void resolve_or_init(const char* klass_name, bool do_init, TRAPS);
static void resolve_or_init(Klass* k, bool do_init, TRAPS);
static void init_archived_fields_for(Klass* k, const ArchivedKlassSubGraphInfoRecord* record);
static int init_loaded_regions(FileMapInfo* mapinfo, LoadedArchiveHeapRegion* loaded_regions,
MemRegion& archive_space);
static void init_loaded_heap_relocation(LoadedArchiveHeapRegion* reloc_info,
int num_loaded_regions);
static void fill_failed_loaded_region();
static void mark_native_pointers(oop orig_obj);
static bool has_been_archived(oop orig_obj);
+ static bool can_mirror_be_used_in_subgraph(oop orig_java_mirror);
static void archive_java_mirrors();
static void archive_strings();
+
public:
+ static void exit_on_error();
static void reset_archived_object_states(TRAPS);
static void create_archived_object_cache() {
_archived_object_cache =
new (mtClass)ArchivedObjectCache(INITIAL_TABLE_SIZE, MAX_TABLE_SIZE);
}
KlassSubGraphInfo* subgraph_info,
oop orig_obj);
static void add_to_dumped_interned_strings(oop string);
+ static void track_scratch_object(oop orig_obj, oop scratch_obj);
+
// Scratch objects for archiving Klass::java_mirror()
static void set_scratch_java_mirror(Klass* k, oop mirror);
static void remove_scratch_objects(Klass* k);
static void get_pointer_info(oop src_obj, bool& has_oop_pointers, bool& has_native_pointers);
static void set_has_native_pointers(oop src_obj);
// Other types of roots are also cleared similarly when they become referenced.
// Dump-time only. Returns the index of the root, which can be used at run time to read
// the root using get_root(index, ...).
static int append_root(oop obj);
- static GrowableArrayCHeap<oop, mtClassShared>* pending_roots() { return _pending_roots; }
+ static GrowableArrayCHeap<OopHandle, mtClassShared>* pending_roots() { return _pending_roots; }
// Dump-time and runtime
static objArrayOop root_segment(int segment_idx);
static oop get_root(int index, bool clear=false);
// Run-time only
static void clear_root(int index);
-
static void get_segment_indexes(int index, int& segment_index, int& internal_index);
-
static void setup_test_class(const char* test_class_name) PRODUCT_RETURN;
#endif // INCLUDE_CDS_JAVA_HEAP
public:
+ static oop orig_to_scratch_object(oop orig_obj);
static objArrayOop scratch_resolved_references(ConstantPool* src);
static void add_scratch_resolved_references(ConstantPool* src, objArrayOop dest) NOT_CDS_JAVA_HEAP_RETURN;
static void init_scratch_objects(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
+ static void init_box_classes(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
static bool is_heap_region(int idx) {
CDS_JAVA_HEAP_ONLY(return (idx == MetaspaceShared::hp);)
NOT_CDS_JAVA_HEAP_RETURN_(false);
}
static void init_root_segment_sizes(int max_size_elems) NOT_CDS_JAVA_HEAP_RETURN;
static void serialize_tables(SerializeClosure* soc) NOT_CDS_JAVA_HEAP_RETURN;
#ifndef PRODUCT
static bool is_a_test_class_in_unnamed_module(Klass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
+ static void initialize_test_class_from_archive(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
#endif
+
+ static void add_to_permanent_oop_table(oop obj, int offset);
+
+ // AOT-compile time only: get a stable index for an archived object.
+ // Returns 0 if obj is not archived.
+ static int get_archived_object_permanent_index(oop obj) NOT_CDS_JAVA_HEAP_RETURN_(-1);
+ // Runtime only: get back the same object for an index returned by
+ // get_archived_object_permanent_index().
+ static oop get_archived_object(int permanent_index) NOT_CDS_JAVA_HEAP_RETURN_(nullptr);
+
+ static void initialize_java_lang_invoke(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
+ static void initialize_default_subgraph_classes(Handle loader, TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
+
+ static bool is_lambda_form_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
+ static bool is_lambda_proxy_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
+ static bool is_archivable_hidden_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
+ };
+
+ class CachedCodeDirectoryInternal {
+ int _permanent_oop_count;
+ int* _permanent_oop_offsets; // offset of each permanent object from the bottom of the archived heap
+ public:
+ void dumptime_init_internal();
+ void runtime_init_internal();
};
#if INCLUDE_CDS_JAVA_HEAP
class DumpedInternedStrings :
public ResizeableResourceHashtable<oop, bool,
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