< prev index next > src/hotspot/share/cds/dynamicArchive.cpp
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/*
! * Copyright (c) 2019, 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.
/*
! * Copyright (c) 2019, 2024, 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.
#include "cds/archiveHeapWriter.hpp"
#include "cds/archiveUtils.inline.hpp"
#include "cds/cds_globals.hpp"
#include "cds/cdsConfig.hpp"
#include "cds/classPrelinker.hpp"
+ #include "cds/classPreloader.hpp"
#include "cds/dynamicArchive.hpp"
+ #include "cds/metaspaceShared.hpp"
#include "cds/regeneratedClasses.hpp"
+ #include "classfile/classLoader.hpp"
#include "classfile/classLoaderData.inline.hpp"
#include "classfile/symbolTable.hpp"
#include "classfile/systemDictionaryShared.hpp"
#include "classfile/vmSymbols.hpp"
#include "gc/shared/collectedHeap.hpp"
if (SystemDictionaryShared::is_dumptime_table_empty()) {
log_warning(cds, dynamic)("There is no class to be included in the dynamic archive.");
return;
}
+ log_info(cds,dynamic)("CDS dynamic dump: clinit = %ldms)",
+ ClassLoader::class_init_time_ms());
+
init_header();
gather_source_objs();
gather_array_klasses();
reserve_buffer();
dump_ro_metadata();
relocate_metaspaceobj_embedded_pointers();
verify_estimate_size(_estimated_metaspaceobj_bytes, "MetaspaceObjs");
+ sort_methods();
+
+ {
+ ArchiveBuilder::OtherROAllocMark mark;
+ ClassPreloader::record_preloaded_classes(false);
+ }
+
+ log_info(cds)("Make classes shareable");
+ make_klasses_shareable();
+
char* serialized_data;
{
// Write the symbol table and system dictionaries to the RO space.
// Note that these tables still point to the *original* objects, so
// they would need to call DynamicArchive::original_to_target() to
assert(current_dump_region() == ro_region(), "Must be RO space");
SymbolTable::write_to_archive(symbols());
ArchiveBuilder::OtherROAllocMark mark;
SystemDictionaryShared::write_to_archive(false);
DynamicArchive::dump_array_klasses();
serialized_data = ro_region()->top();
WriteClosure wc(ro_region());
ArchiveBuilder::serialize_dynamic_archivable_items(&wc);
}
verify_estimate_size(_estimated_hashtable_bytes, "Hashtables");
- sort_methods();
-
- log_info(cds)("Make classes shareable");
- make_klasses_shareable();
-
log_info(cds)("Adjust lambda proxy class dictionary");
SystemDictionaryShared::adjust_lambda_proxy_class_dictionary();
relocate_to_requested();
write_archive(serialized_data);
release_header();
DynamicArchive::post_dump();
assert(current_dump_region() == ro_region(), "Must be RO space");
SymbolTable::write_to_archive(symbols());
ArchiveBuilder::OtherROAllocMark mark;
SystemDictionaryShared::write_to_archive(false);
+
DynamicArchive::dump_array_klasses();
+ ClassPreloader::record_initiated_classes(false);
+ TrainingData::dump_training_data();
serialized_data = ro_region()->top();
WriteClosure wc(ro_region());
ArchiveBuilder::serialize_dynamic_archivable_items(&wc);
}
verify_estimate_size(_estimated_hashtable_bytes, "Hashtables");
log_info(cds)("Adjust lambda proxy class dictionary");
SystemDictionaryShared::adjust_lambda_proxy_class_dictionary();
+ log_info(cds)("Adjust method info dictionary");
+ SystemDictionaryShared::adjust_method_info_dictionary();
+
+ log_info(cds)("Make training data shareable");
+ make_training_data_shareable();
+
relocate_to_requested();
write_archive(serialized_data);
release_header();
DynamicArchive::post_dump();
}
virtual void iterate_roots(MetaspaceClosure* it) {
FileMapInfo::metaspace_pointers_do(it);
SystemDictionaryShared::dumptime_classes_do(it);
+ TrainingData::iterate_roots(it);
iterate_primitive_array_klasses(it);
}
void iterate_primitive_array_klasses(MetaspaceClosure* it) {
for (int i = T_BOOLEAN; i <= T_LONG; i++) {
_header = nullptr;
}
void DynamicArchiveBuilder::post_dump() {
ArchivePtrMarker::reset_map_and_vs();
+ ClassPreloader::dispose();
ClassPrelinker::dispose();
}
void DynamicArchiveBuilder::sort_methods() {
InstanceKlass::disable_method_binary_search();
}
log_info(cds, dynamic)("Preparing for dynamic dump at exit in thread %s", current->name());
JavaThread* THREAD = current; // For TRAPS processing related to link_shared_classes
+
+ {
+ // FIXME-HACK - make sure we have at least one class in the dynamic archive
+ TempNewSymbol class_name = SymbolTable::new_symbol("sun/nio/cs/IBM850"); // unusual class; shouldn't be used by our tests cases.
+ SystemDictionary::resolve_or_null(class_name, Handle(), Handle(), THREAD);
+ guarantee(!HAS_PENDING_EXCEPTION, "must have this class");
+ }
+
MetaspaceShared::link_shared_classes(false/*not from jcmd*/, THREAD);
if (!HAS_PENDING_EXCEPTION) {
// copy shared path table to saved.
+ TrainingData::init_dumptime_table(CHECK); // captures TrainingDataSetLocker
if (!HAS_PENDING_EXCEPTION) {
VM_PopulateDynamicDumpSharedSpace op(archive_name);
VMThread::execute(&op);
return;
}
assert(UseSharedSpaces && RecordDynamicDumpInfo, "already checked in arguments.cpp");
assert(ArchiveClassesAtExit == nullptr, "already checked in arguments.cpp");
assert(CDSConfig::is_dumping_dynamic_archive(), "already checked by check_for_dynamic_dump() during VM startup");
MetaspaceShared::link_shared_classes(true/*from jcmd*/, CHECK);
// copy shared path table to saved.
+ TrainingData::init_dumptime_table(CHECK); // captures TrainingDataSetLocker
VM_PopulateDynamicDumpSharedSpace op(archive_name);
VMThread::execute(&op);
}
bool DynamicArchive::validate(FileMapInfo* dynamic_info) {
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