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* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
+ #include "cds/aotClassInitializer.hpp"
#include "cds/aotArtifactFinder.hpp"
#include "cds/aotClassLinker.hpp"
#include "cds/aotClassLocation.hpp"
#include "cds/aotConstantPoolResolver.hpp"
#include "cds/aotLinkedClassBulkLoader.hpp"
#include "cds/archiveBuilder.hpp"
#include "cds/archiveHeapLoader.hpp"
#include "cds/archiveHeapWriter.hpp"
#include "cds/cds_globals.hpp"
+ #include "cds/cdsAccess.hpp"
#include "cds/cdsConfig.hpp"
#include "cds/cdsProtectionDomain.hpp"
#include "cds/classListParser.hpp"
#include "cds/classListWriter.hpp"
#include "cds/cppVtables.hpp"
#include "classfile/systemDictionary.hpp"
#include "classfile/systemDictionaryShared.hpp"
#include "classfile/vmClasses.hpp"
#include "classfile/vmSymbols.hpp"
#include "code/codeCache.hpp"
+ #include "code/SCCache.hpp"
+ #include "compiler/compileBroker.hpp"
+ #include "compiler/precompiler.hpp"
#include "gc/shared/gcVMOperations.hpp"
#include "interpreter/bytecodeStream.hpp"
#include "interpreter/bytecodes.hpp"
#include "jvm_io.h"
#include "logging/log.hpp"
#include "memory/universe.hpp"
#include "nmt/memTracker.hpp"
#include "oops/compressedKlass.hpp"
#include "oops/instanceMirrorKlass.hpp"
#include "oops/klass.inline.hpp"
+ #include "oops/method.inline.hpp"
#include "oops/objArrayOop.hpp"
#include "oops/oop.inline.hpp"
#include "oops/oopHandle.hpp"
+ #include "oops/trainingData.hpp"
#include "prims/jvmtiExport.hpp"
+ #include "prims/whitebox.hpp"
#include "runtime/arguments.hpp"
#include "runtime/globals.hpp"
#include "runtime/globals_extension.hpp"
#include "runtime/handles.inline.hpp"
#include "runtime/javaCalls.hpp"
void* MetaspaceShared::_shared_metaspace_static_top = nullptr;
intx MetaspaceShared::_relocation_delta;
char* MetaspaceShared::_requested_base_address;
Array<Method*>* MetaspaceShared::_archived_method_handle_intrinsics = nullptr;
bool MetaspaceShared::_use_optimized_module_handling = true;
+ int volatile MetaspaceShared::_preimage_static_archive_dumped = 0;
// The CDS archive is divided into the following regions:
// rw - read-write metadata
// ro - read-only metadata and read-only tables
// hp - heap region
return aligned_base;
}
void MetaspaceShared::initialize_for_static_dump() {
assert(CDSConfig::is_dumping_static_archive(), "sanity");
+
+ if (CDSConfig::is_dumping_preimage_static_archive() || CDSConfig::is_dumping_final_static_archive()) {
+ if (!((UseG1GC || UseParallelGC || UseSerialGC || UseEpsilonGC || UseShenandoahGC) && UseCompressedClassPointers)) {
+ const char* error;
+ if (CDSConfig::is_experimental_leyden_workflow()) {
+ error = "Cannot create the CacheDataStore";
+ } else if (CDSConfig::is_dumping_preimage_static_archive()) {
+ error = "Cannot create the AOT configuration file";
+ } else {
+ error = "Cannot create the AOT cache";
+ }
+
+ vm_exit_during_initialization(error,
+ "UseCompressedClassPointers must be enabled, and collector must be G1, Parallel, Serial, Epsilon, or Shenandoah");
+ }
+ }
+
log_info(cds)("Core region alignment: %zu", core_region_alignment());
+
// The max allowed size for CDS archive. We use this to limit SharedBaseAddress
// to avoid address space wrap around.
size_t cds_max;
const size_t reserve_alignment = core_region_alignment();
StringTable::serialize_shared_table_header(soc);
HeapShared::serialize_tables(soc);
SystemDictionaryShared::serialize_dictionary_headers(soc);
AOTLinkedClassBulkLoader::serialize(soc, true);
FinalImageRecipes::serialize(soc);
+ TrainingData::serialize_training_data(soc);
InstanceMirrorKlass::serialize_offsets(soc);
// Dump/restore well known classes (pointers)
SystemDictionaryShared::serialize_vm_classes(soc);
soc->do_tag(--tag);
CDS_JAVA_HEAP_ONLY(ClassLoaderDataShared::serialize(soc);)
soc->do_ptr((void**)&_archived_method_handle_intrinsics);
LambdaFormInvokers::serialize(soc);
+ AdapterHandlerLibrary::serialize_shared_table_header(soc);
+
soc->do_tag(666);
}
static void rewrite_nofast_bytecode(const methodHandle& method) {
BytecodeStream bcs(method);
virtual void iterate_roots(MetaspaceClosure* it) {
AOTArtifactFinder::all_cached_classes_do(it);
SystemDictionaryShared::dumptime_classes_do(it);
Universe::metaspace_pointers_do(it);
vmSymbols::metaspace_pointers_do(it);
+ TrainingData::iterate_roots(it);
// The above code should find all the symbols that are referenced by the
// archived classes. We just need to add the extra symbols which
// may not be used by any of the archived classes -- these are usually
// symbols that we anticipate to be used at run time, so we can store
cl_config = AOTClassLocationConfig::dumptime()->write_to_archive();
AOTClassLinker::write_to_archive();
if (CDSConfig::is_dumping_preimage_static_archive()) {
FinalImageRecipes::record_recipes();
}
+
+ TrainingData::dump_training_data();
+
MetaspaceShared::write_method_handle_intrinsics();
// Write lambform lines into archive
LambdaFormInvokers::dump_static_archive_invokers();
+ if (CDSConfig::is_dumping_adapters()) {
+ AdapterHandlerLibrary::archive_adapter_table();
+ }
+
// Write the other data to the output array.
DumpRegion* ro_region = ArchiveBuilder::current()->ro_region();
char* start = ro_region->top();
WriteClosure wc(ro_region);
MetaspaceShared::serialize(&wc);
AOTClassLocationConfig* cl_config;
char* serialized_data = dump_read_only_tables(cl_config);
SystemDictionaryShared::adjust_lambda_proxy_class_dictionary();
// The vtable clones contain addresses of the current process.
// We don't want to write these addresses into the archive.
CppVtables::zero_archived_vtables();
// Write the archive file
const char* static_archive;
if (CDSConfig::is_dumping_final_static_archive()) {
! static_archive = AOTCache;
FileMapInfo::free_current_info();
} else {
static_archive = CDSConfig::static_archive_path();
}
assert(static_archive != nullptr, "SharedArchiveFile not set?");
AOTClassLocationConfig* cl_config;
char* serialized_data = dump_read_only_tables(cl_config);
SystemDictionaryShared::adjust_lambda_proxy_class_dictionary();
+ log_info(cds)("Make training data shareable");
+ _builder.make_training_data_shareable();
+
// The vtable clones contain addresses of the current process.
// We don't want to write these addresses into the archive.
CppVtables::zero_archived_vtables();
// Write the archive file
const char* static_archive;
if (CDSConfig::is_dumping_final_static_archive()) {
! if (CDSConfig::is_experimental_leyden_workflow()) {
+ static_archive = CacheDataStore;
+ } else {
+ static_archive = AOTCache;
+ }
FileMapInfo::free_current_info();
} else {
static_archive = CDSConfig::static_archive_path();
}
assert(static_archive != nullptr, "SharedArchiveFile not set?");
};
// Check if we can eagerly link this class at dump time, so we can avoid the
// runtime linking overhead (especially verification)
bool MetaspaceShared::may_be_eagerly_linked(InstanceKlass* ik) {
+ if (CDSConfig::preserve_all_dumptime_verification_states(ik)) {
+ assert(ik->can_be_verified_at_dumptime(), "sanity");
+ }
if (!ik->can_be_verified_at_dumptime()) {
// For old classes, try to leave them in the unlinked state, so
// we can still store them in the archive. They must be
// linked/verified at runtime.
return false;
}
+
if (CDSConfig::is_dumping_dynamic_archive() && ik->is_shared_unregistered_class()) {
// Linking of unregistered classes at this stage may cause more
// classes to be resolved, resulting in calls to ClassLoader.loadClass()
// that may not be expected by custom class loaders.
//
return false;
}
return true;
}
- bool MetaspaceShared::link_class_for_cds(InstanceKlass* ik, TRAPS) {
- // Link the class to cause the bytecodes to be rewritten and the
- // cpcache to be created. Class verification is done according
- // to -Xverify setting.
- bool res = MetaspaceShared::try_link_class(THREAD, ik);
- AOTConstantPoolResolver::dumptime_resolve_constants(ik, CHECK_(false));
- return res;
- }
! void MetaspaceShared::link_shared_classes(bool jcmd_request, TRAPS) {
AOTClassLinker::initialize();
!
- if (!jcmd_request && !CDSConfig::is_dumping_final_static_archive()) {
- LambdaFormInvokers::regenerate_holder_classes(CHECK);
- }
// Collect all loaded ClassLoaderData.
CollectCLDClosure collect_cld(THREAD);
{
// ClassLoaderDataGraph::loaded_cld_do requires ClassLoaderDataGraph_lock.
return false;
}
return true;
}
! void MetaspaceShared::link_shared_classes(TRAPS) {
AOTClassLinker::initialize();
! AOTClassInitializer::init_test_class(CHECK);
// Collect all loaded ClassLoaderData.
CollectCLDClosure collect_cld(THREAD);
{
// ClassLoaderDataGraph::loaded_cld_do requires ClassLoaderDataGraph_lock.
ClassLoaderData* cld = collect_cld.cld_at(i);
for (Klass* klass = cld->klasses(); klass != nullptr; klass = klass->next_link()) {
if (klass->is_instance_klass()) {
InstanceKlass* ik = InstanceKlass::cast(klass);
if (may_be_eagerly_linked(ik)) {
! has_linked |= link_class_for_cds(ik, CHECK);
}
}
}
}
ClassLoaderData* cld = collect_cld.cld_at(i);
for (Klass* klass = cld->klasses(); klass != nullptr; klass = klass->next_link()) {
if (klass->is_instance_klass()) {
InstanceKlass* ik = InstanceKlass::cast(klass);
if (may_be_eagerly_linked(ik)) {
! has_linked |= try_link_class(THREAD, ik);
+ }
+ if (CDSConfig::is_dumping_heap() && ik->is_linked() && !ik->is_initialized()) {
+ AOTClassInitializer::maybe_preinit_class(ik, CHECK);
}
}
}
}
}
// Class linking includes verification which may load more classes.
// Keep scanning until we have linked no more classes.
}
+ // Resolve constant pool entries -- we don't load any new classes during this stage
+ for (int i = 0; i < collect_cld.nof_cld(); i++) {
+ ClassLoaderData* cld = collect_cld.cld_at(i);
+ for (Klass* klass = cld->klasses(); klass != nullptr; klass = klass->next_link()) {
+ if (klass->is_instance_klass()) {
+ InstanceKlass* ik = InstanceKlass::cast(klass);
+ AOTConstantPoolResolver::dumptime_resolve_constants(ik, CHECK);
+ if (CDSConfig::is_dumping_preimage_static_archive()) {
+ FinalImageRecipes::add_reflection_data_flags(ik, CHECK);
+ }
+ }
+ }
+ }
+
if (CDSConfig::is_dumping_final_static_archive()) {
FinalImageRecipes::apply_recipes(CHECK);
}
}
// Preload classes from a list, populate the shared spaces and dump to a
// file.
void MetaspaceShared::preload_and_dump(TRAPS) {
CDSConfig::DumperThreadMark dumper_thread_mark(THREAD);
ResourceMark rm(THREAD);
+ HandleMark hm(THREAD);
+
+ if (CDSConfig::is_dumping_final_static_archive() && PrintTrainingInfo) {
+ tty->print_cr("==================== archived_training_data ** before dumping ====================");
+ TrainingData::print_archived_training_data_on(tty);
+ }
+
StaticArchiveBuilder builder;
preload_and_dump_impl(builder, THREAD);
if (HAS_PENDING_EXCEPTION) {
if (PENDING_EXCEPTION->is_a(vmClasses::OutOfMemoryError_klass())) {
log_error(cds)("Out of memory. Please run with a larger Java heap, current MaxHeapSize = "
// Exercise FileSystem and URL code
CDSProtectionDomain::to_file_URL("dummy.jar", Handle(), CHECK);
}
+ bool MetaspaceShared::is_recording_preimage_static_archive() {
+ if (CDSConfig::is_dumping_preimage_static_archive()) {
+ return _preimage_static_archive_dumped == 0;
+ }
+ return false;
+ }
+
void MetaspaceShared::preload_and_dump_impl(StaticArchiveBuilder& builder, TRAPS) {
+ if (CDSConfig::is_dumping_preimage_static_archive()) {
+ if (Atomic::cmpxchg(&_preimage_static_archive_dumped, 0, 1) != 0) {
+ return;
+ }
+ }
+
if (CDSConfig::is_dumping_classic_static_archive()) {
// We are running with -Xshare:dump
preload_classes(CHECK);
if (SharedArchiveConfigFile) {
ClassListParser::parse_classlist(ExtraSharedClassListFile,
ClassListParser::_parse_all, CHECK);
}
}
// Rewrite and link classes
log_info(cds)("Rewriting and linking classes ...");
// Link any classes which got missed. This would happen if we have loaded classes that
// were not explicitly specified in the classlist. E.g., if an interface implemented by class K
// fails verification, all other interfaces that were not specified in the classlist but
// are implemented by K are not verified.
! link_shared_classes(false/*not from jcmd*/, CHECK);
log_info(cds)("Rewriting and linking classes: done");
#if INCLUDE_CDS_JAVA_HEAP
if (CDSConfig::is_dumping_heap()) {
- if (!HeapShared::is_archived_boot_layer_available(THREAD)) {
- log_info(cds)("archivedBootLayer not available, disabling full module graph");
- CDSConfig::stop_dumping_full_module_graph();
- }
- HeapShared::init_for_dumping(CHECK);
ArchiveHeapWriter::init();
if (CDSConfig::is_dumping_full_module_graph()) {
ClassLoaderDataShared::ensure_module_entry_tables_exist();
HeapShared::reset_archived_object_states(CHECK);
}
! if (CDSConfig::is_dumping_method_handles()) {
! // This assert means that the MethodType and MethodTypeForm tables won't be
- // updated concurrently when we are saving their contents into a side table.
- assert(CDSConfig::allow_only_single_java_thread(), "Required");
-
- JavaValue result(T_VOID);
- JavaCalls::call_static(&result, vmClasses::MethodType_klass(),
- vmSymbols::createArchivedObjects(),
- vmSymbols::void_method_signature(),
- CHECK);
}
if (CDSConfig::is_initing_classes_at_dump_time()) {
// java.lang.Class::reflectionFactory cannot be archived yet. We set this field
// to null, and it will be initialized again at runtime.
ClassListParser::parse_classlist(ExtraSharedClassListFile,
ClassListParser::_parse_all, CHECK);
}
}
+ #if INCLUDE_CDS_JAVA_HEAP
+ if (CDSConfig::is_dumping_heap()) {
+ assert(CDSConfig::allow_only_single_java_thread(), "Required");
+ if (!HeapShared::is_archived_boot_layer_available(THREAD)) {
+ log_info(cds)("archivedBootLayer not available, disabling full module graph");
+ CDSConfig::stop_dumping_full_module_graph();
+ }
+ // Do this before link_shared_classes(), as the following line may load new classes.
+ HeapShared::init_for_dumping(CHECK);
+ }
+ #endif
+
// Rewrite and link classes
log_info(cds)("Rewriting and linking classes ...");
// Link any classes which got missed. This would happen if we have loaded classes that
// were not explicitly specified in the classlist. E.g., if an interface implemented by class K
// fails verification, all other interfaces that were not specified in the classlist but
// are implemented by K are not verified.
! link_shared_classes(CHECK);
log_info(cds)("Rewriting and linking classes: done");
+ if (CDSConfig::is_dumping_final_static_archive()) {
+ assert(RecordTraining == false, "must be");
+ if (CDSConfig::is_dumping_aot_linked_classes()) {
+ RecordTraining = true;
+ }
+ }
+
+ TrainingData::init_dumptime_table(CHECK); // captures TrainingDataSetLocker
+
+ if (CDSConfig::is_dumping_regenerated_lambdaform_invokers()) {
+ // Lambda form invoker regeneration may load extra classes and execute
+ // a lot of Java code. We don't want these to be included into the AOT cache.
+ // This should be done after capturing the training data table, so we won't pollute the
+ // profile.
+ SystemDictionaryShared::ignore_new_classes();
+ LambdaFormInvokers::regenerate_holder_classes(CHECK);
+ }
+
#if INCLUDE_CDS_JAVA_HEAP
if (CDSConfig::is_dumping_heap()) {
ArchiveHeapWriter::init();
if (CDSConfig::is_dumping_full_module_graph()) {
ClassLoaderDataShared::ensure_module_entry_tables_exist();
HeapShared::reset_archived_object_states(CHECK);
}
! if (ArchiveLoaderLookupCache) {
! SystemDictionaryShared::create_loader_positive_lookup_cache(CHECK);
}
if (CDSConfig::is_initing_classes_at_dump_time()) {
// java.lang.Class::reflectionFactory cannot be archived yet. We set this field
// to null, and it will be initialized again at runtime.
}
#endif
VM_PopulateDumpSharedSpace op(builder);
VMThread::execute(&op);
! if (!write_static_archive(&builder, op.map_info(), op.heap_info())) {
THROW_MSG(vmSymbols::java_io_IOException(), "Encountered error while dumping");
}
}
bool MetaspaceShared::write_static_archive(ArchiveBuilder* builder, FileMapInfo* map_info, ArchiveHeapInfo* heap_info) {
}
#endif
VM_PopulateDumpSharedSpace op(builder);
VMThread::execute(&op);
+ FileMapInfo* mapinfo = op.map_info();
+ ArchiveHeapInfo* heap_info = op.heap_info();
! if (CDSConfig::is_dumping_final_static_archive()) {
+ RecordTraining = false;
+ if (StoreCachedCode) {
+ if (log_is_enabled(Info, cds, jit)) {
+ CDSAccess::test_heap_access_api();
+ }
+
+ // We have just created the final image. Let's run the AOT compiler
+ if (PrintTrainingInfo) {
+ tty->print_cr("==================== archived_training_data ** after dumping ====================");
+ TrainingData::print_archived_training_data_on(tty);
+ }
+
+ CDSConfig::enable_dumping_cached_code();
+ {
+ builder.start_cc_region();
+ Precompiler::compile_cached_code(&builder, CHECK);
+ // Write the contents to cached code region and close SCCache before packing the region
+ SCCache::close();
+ builder.end_cc_region();
+ }
+ CDSConfig::disable_dumping_cached_code();
+ }
+ }
+
+ bool status = write_static_archive(&builder, mapinfo, heap_info);
+ if (status && CDSConfig::is_experimental_leyden_workflow() && CDSConfig::is_dumping_preimage_static_archive()) {
+ fork_and_dump_final_static_archive();
+ }
+
+ if (!status) {
THROW_MSG(vmSymbols::java_io_IOException(), "Encountered error while dumping");
}
}
bool MetaspaceShared::write_static_archive(ArchiveBuilder* builder, FileMapInfo* map_info, ArchiveHeapInfo* heap_info) {
"for testing purposes only and should not be used in a production environment", CDSConfig::type_of_archive_being_loaded());
}
return true;
}
+ static void print_java_launcher(outputStream* st) {
+ st->print("%s%sbin%sjava", Arguments::get_java_home(), os::file_separator(), os::file_separator());
+ }
+
+ static void print_vm_arguments(outputStream* st) {
+ const char* cp = Arguments::get_appclasspath();
+ if (cp != nullptr && strlen(cp) > 0 && strcmp(cp, ".") != 0) {
+ st->print(" -cp "); st->print_raw(cp);
+ }
+ for (int i = 0; i < Arguments::num_jvm_flags(); i++) {
+ st->print(" %s", Arguments::jvm_flags_array()[i]);
+ }
+ for (int i = 0; i < Arguments::num_jvm_args(); i++) {
+ st->print(" %s", Arguments::jvm_args_array()[i]);
+ }
+ }
+
+ void MetaspaceShared::fork_and_dump_final_static_archive() {
+ assert(CDSConfig::is_dumping_preimage_static_archive(), "sanity");
+
+ ResourceMark rm;
+ stringStream ss;
+ print_java_launcher(&ss);
+ print_vm_arguments(&ss);
+ ss.print(" -XX:CDSPreimage=%s", SharedArchiveFile);
+
+ const char* cmd = ss.freeze();
+ if (CDSManualFinalImage) {
+ tty->print_cr("-XX:+CDSManualFinalImage is specified");
+ tty->print_cr("Please manually execute the following command to create the final CDS image:");
+ tty->print(" "); tty->print_raw_cr(cmd);
+
+ // The following is useful if the dumping was trigger by a script that builds
+ // a complex command-line.
+ tty->print_cr("Note: to recreate the preimage only:");
+ tty->print_cr(" rm -f %s", CacheDataStore);
+ tty->print(" ");
+ print_java_launcher(tty);
+ print_vm_arguments(tty);
+ if (Arguments::java_command() != nullptr) {
+ tty->print(" %s", Arguments::java_command());
+ }
+ tty->cr();
+ } else {
+ // FIXME: space characters are not properly quoated. E.g.,
+ // java -Dfoo='a b c' HelloWorld
+ log_info(cds)("Launching child process to create final CDS image:");
+ log_info(cds)(" %s", cmd);
+ int status = os::fork_and_exec(cmd);
+ if (status != 0) {
+ log_error(cds)("Child process finished; status = %d", status);
+ log_error(cds)("To reproduce the error");
+ ResourceMark rm;
+ LogStream ls(Log(cds)::error());
+ ls.print(" "); ls.print_raw_cr(cmd);
+
+ // The following is useful if the dumping was trigger by a script that builds
+ // a complex command-line.
+ ls.print_cr("Note: to recreate the preimage only:");
+ ls.print_cr(" rm -f %s", CacheDataStore);
+ ls.print(" ");
+ print_java_launcher(&ls);
+ print_vm_arguments(&ls);
+ ls.print(" -XX:+UnlockDiagnosticVMOptions -XX:+CDSManualFinalImage");
+ if (Arguments::java_command() != nullptr) {
+ ls.print(" %s", Arguments::java_command());
+ }
+ ls.cr();
+
+ vm_direct_exit(status);
+ } else {
+ log_info(cds)("Child process finished; status = %d", status);
+ // On Windows, need WRITE permission to remove the file.
+ WINDOWS_ONLY(chmod(SharedArchiveFile, _S_IREAD | _S_IWRITE));
+ status = remove(SharedArchiveFile);
+ if (status != 0) {
+ log_error(cds)("Failed to remove CDSPreimage file %s", SharedArchiveFile);
+ } else {
+ log_info(cds)("Removed CDSPreimage file %s", SharedArchiveFile);
+ }
+ }
+ }
+ }
+
// Returns true if the class's status has changed.
bool MetaspaceShared::try_link_class(JavaThread* current, InstanceKlass* ik) {
ExceptionMark em(current);
JavaThread* THREAD = current; // For exception macros.
assert(CDSConfig::is_dumping_archive(), "sanity");
}
void VM_PopulateDumpSharedSpace::dump_java_heap_objects() {
if (CDSConfig::is_dumping_heap()) {
HeapShared::write_heap(&_heap_info);
! } else {
CDSConfig::log_reasons_for_not_dumping_heap();
}
}
void MetaspaceShared::set_shared_metaspace_range(void* base, void *static_top, void* top) {
}
void VM_PopulateDumpSharedSpace::dump_java_heap_objects() {
if (CDSConfig::is_dumping_heap()) {
HeapShared::write_heap(&_heap_info);
! } else if (!CDSConfig::is_dumping_preimage_static_archive()) {
CDSConfig::log_reasons_for_not_dumping_heap();
}
}
void MetaspaceShared::set_shared_metaspace_range(void* base, void *static_top, void* top) {
void MetaspaceShared::initialize_runtime_shared_and_meta_spaces() {
assert(CDSConfig::is_using_archive(), "Must be called when UseSharedSpaces is enabled");
MapArchiveResult result = MAP_ARCHIVE_OTHER_FAILURE;
! FileMapInfo* static_mapinfo = open_static_archive();
FileMapInfo* dynamic_mapinfo = nullptr;
if (static_mapinfo != nullptr) {
log_info(cds)("Core region alignment: %zu", static_mapinfo->core_region_alignment());
dynamic_mapinfo = open_dynamic_archive();
void MetaspaceShared::initialize_runtime_shared_and_meta_spaces() {
assert(CDSConfig::is_using_archive(), "Must be called when UseSharedSpaces is enabled");
MapArchiveResult result = MAP_ARCHIVE_OTHER_FAILURE;
! FileMapInfo* static_mapinfo = FileMapInfo::current_info();
FileMapInfo* dynamic_mapinfo = nullptr;
if (static_mapinfo != nullptr) {
log_info(cds)("Core region alignment: %zu", static_mapinfo->core_region_alignment());
dynamic_mapinfo = open_dynamic_archive();
log_info(cds)("Unable to map shared spaces");
if (PrintSharedArchiveAndExit) {
MetaspaceShared::unrecoverable_loading_error("Unable to use shared archive.");
} else if (RequireSharedSpaces) {
MetaspaceShared::unrecoverable_loading_error("Unable to map shared spaces");
+ } else if (CDSConfig::is_dumping_final_static_archive()) {
+ assert(CDSPreimage != nullptr, "must be");
+ log_error(cds)("Unable to map shared spaces for CDSPreimage = %s", CDSPreimage);
+ MetaspaceShared::unrecoverable_loading_error();
}
}
// If mapping failed and -XShare:on, the vm should exit
bool has_failed = false;
if (dynamic_mapinfo != nullptr && !dynamic_mapinfo->is_mapped()) {
has_failed = true;
delete dynamic_mapinfo;
}
if (RequireSharedSpaces && has_failed) {
MetaspaceShared::unrecoverable_loading_error("Unable to map shared spaces");
}
}
! FileMapInfo* MetaspaceShared::open_static_archive() {
const char* static_archive = CDSConfig::static_archive_path();
assert(static_archive != nullptr, "sanity");
FileMapInfo* mapinfo = new FileMapInfo(static_archive, true);
if (!mapinfo->initialize()) {
delete(mapinfo);
! return nullptr;
}
- return mapinfo;
}
FileMapInfo* MetaspaceShared::open_dynamic_archive() {
if (CDSConfig::is_dumping_dynamic_archive()) {
return nullptr;
if (dynamic_mapinfo != nullptr && !dynamic_mapinfo->is_mapped()) {
has_failed = true;
delete dynamic_mapinfo;
}
if (RequireSharedSpaces && has_failed) {
+ // static archive mapped but dynamic archive failed
MetaspaceShared::unrecoverable_loading_error("Unable to map shared spaces");
}
}
! // This is called very early at VM start up to get the size of the cached_code region
+ void MetaspaceShared::open_static_archive() {
+ if (!UseSharedSpaces) {
+ return;
+ }
const char* static_archive = CDSConfig::static_archive_path();
assert(static_archive != nullptr, "sanity");
FileMapInfo* mapinfo = new FileMapInfo(static_archive, true);
if (!mapinfo->initialize()) {
delete(mapinfo);
! } else {
+ FileMapRegion* r = mapinfo->region_at(MetaspaceShared::cc);
+ CDSAccess::set_cached_code_size(r->used_aligned());
}
}
FileMapInfo* MetaspaceShared::open_dynamic_archive() {
if (CDSConfig::is_dumping_dynamic_archive()) {
return nullptr;
assert(CDSConfig::is_using_archive(), "must be runtime");
if (mapinfo == nullptr) {
return MAP_ARCHIVE_SUCCESS; // The dynamic archive has not been specified. No error has happened -- trivially succeeded.
}
+ if (!mapinfo->validate_aot_class_linking()) {
+ return MAP_ARCHIVE_OTHER_FAILURE;
+ }
+
mapinfo->set_is_mapped(false);
if (mapinfo->core_region_alignment() != (size_t)core_region_alignment()) {
log_info(cds)("Unable to map CDS archive -- core_region_alignment() expected: %zu"
" actual: %zu", mapinfo->core_region_alignment(), core_region_alignment());
return MAP_ARCHIVE_OTHER_FAILURE;
// Finish up archived heap initialization. These must be
// done after ReadClosure.
static_mapinfo->patch_heap_embedded_pointers();
ArchiveHeapLoader::finish_initialization();
Universe::load_archived_object_instances();
+ SCCache::initialize();
// Close the mapinfo file
static_mapinfo->close();
static_mapinfo->unmap_region(MetaspaceShared::bm);
if (dynamic_mapinfo != nullptr) {
tty->print_cr("\n\nDynamic archive name: %s", dynamic_mapinfo->full_path());
tty->print_cr("Dynamic archive version %d", dynamic_mapinfo->version());
SystemDictionaryShared::print_shared_archive(tty, false/*dynamic*/);
}
+ TrainingData::print_archived_training_data_on(tty);
+
+ if (LoadCachedCode) {
+ tty->print_cr("\n\nCached Code");
+ SCCache::print_on(tty);
+ }
// collect shared symbols and strings
CountSharedSymbols cl;
SymbolTable::shared_symbols_do(&cl);
tty->print_cr("Number of shared symbols: %d", cl.total());
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