13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "cds/aotClassLinker.hpp"
27 #include "cds/archiveBuilder.hpp"
28 #include "cds/archiveHeapWriter.hpp"
29 #include "cds/archiveUtils.inline.hpp"
30 #include "cds/cds_globals.hpp"
31 #include "cds/cdsConfig.hpp"
32 #include "cds/dynamicArchive.hpp"
33 #include "cds/regeneratedClasses.hpp"
34 #include "classfile/classLoader.hpp"
35 #include "classfile/classLoaderData.inline.hpp"
36 #include "classfile/symbolTable.hpp"
37 #include "classfile/systemDictionaryShared.hpp"
38 #include "classfile/vmSymbols.hpp"
39 #include "gc/shared/collectedHeap.hpp"
40 #include "gc/shared/gcVMOperations.hpp"
41 #include "gc/shared/gc_globals.hpp"
42 #include "jvm.h"
43 #include "logging/log.hpp"
44 #include "memory/metaspaceClosure.hpp"
45 #include "memory/resourceArea.hpp"
46 #include "oops/klass.inline.hpp"
47 #include "runtime/arguments.hpp"
48 #include "runtime/os.hpp"
49 #include "runtime/sharedRuntime.hpp"
50 #include "runtime/vmOperations.hpp"
51 #include "runtime/vmThread.hpp"
52 #include "utilities/align.hpp"
134 relocate_metaspaceobj_embedded_pointers();
135
136 verify_estimate_size(_estimated_metaspaceobj_bytes, "MetaspaceObjs");
137
138 sort_methods();
139
140 log_info(cds)("Make classes shareable");
141 make_klasses_shareable();
142
143 char* serialized_data;
144 {
145 // Write the symbol table and system dictionaries to the RO space.
146 // Note that these tables still point to the *original* objects, so
147 // they would need to call DynamicArchive::original_to_target() to
148 // get the correct addresses.
149 assert(current_dump_region() == ro_region(), "Must be RO space");
150 SymbolTable::write_to_archive(symbols());
151
152 ArchiveBuilder::OtherROAllocMark mark;
153 SystemDictionaryShared::write_to_archive(false);
154 DynamicArchive::dump_array_klasses();
155 AOTClassLinker::write_to_archive();
156
157 serialized_data = ro_region()->top();
158 WriteClosure wc(ro_region());
159 ArchiveBuilder::serialize_dynamic_archivable_items(&wc);
160 }
161
162 verify_estimate_size(_estimated_hashtable_bytes, "Hashtables");
163
164 log_info(cds)("Adjust lambda proxy class dictionary");
165 SystemDictionaryShared::adjust_lambda_proxy_class_dictionary();
166
167 relocate_to_requested();
168
169 write_archive(serialized_data);
170 release_header();
171 DynamicArchive::post_dump();
172
173 post_dump();
174
175 assert(_num_dump_regions_used == _total_dump_regions, "must be");
176 verify_universe("After CDS dynamic dump");
177 }
178
179 virtual void iterate_roots(MetaspaceClosure* it) {
180 FileMapInfo::metaspace_pointers_do(it);
181 SystemDictionaryShared::dumptime_classes_do(it);
182 iterate_primitive_array_klasses(it);
183 }
184
185 void iterate_primitive_array_klasses(MetaspaceClosure* it) {
186 for (int i = T_BOOLEAN; i <= T_LONG; i++) {
187 assert(is_java_primitive((BasicType)i), "sanity");
188 Klass* k = Universe::typeArrayKlass((BasicType)i); // this give you "[I", etc
189 assert(MetaspaceShared::is_shared_static((void*)k),
190 "one-dimensional primitive array should be in static archive");
191 ArrayKlass* ak = ArrayKlass::cast(k);
192 while (ak != nullptr && ak->is_shared()) {
193 Klass* next_k = ak->array_klass_or_null();
194 if (next_k != nullptr) {
195 ak = ArrayKlass::cast(next_k);
196 } else {
197 ak = nullptr;
198 }
199 }
200 if (ak != nullptr) {
201 assert(ak->dimension() > 1, "sanity");
490 assert(ArchiveClassesAtExit != nullptr, "sanity");
491 log_warning(cds)("-XX:ArchiveClassesAtExit" __THEMSG);
492 }
493 #undef __THEMSG
494 CDSConfig::disable_dumping_dynamic_archive();
495 }
496 }
497
498 void DynamicArchive::dump_at_exit(JavaThread* current, const char* archive_name) {
499 ExceptionMark em(current);
500 ResourceMark rm(current);
501 CDSConfig::DumperThreadMark dumper_thread_mark(current);
502
503 if (!CDSConfig::is_dumping_dynamic_archive() || archive_name == nullptr) {
504 return;
505 }
506
507 log_info(cds, dynamic)("Preparing for dynamic dump at exit in thread %s", current->name());
508
509 JavaThread* THREAD = current; // For TRAPS processing related to link_shared_classes
510 MetaspaceShared::link_shared_classes(false/*not from jcmd*/, THREAD);
511 if (!HAS_PENDING_EXCEPTION) {
512 // copy shared path table to saved.
513 if (!HAS_PENDING_EXCEPTION) {
514 VM_PopulateDynamicDumpSharedSpace op(archive_name);
515 VMThread::execute(&op);
516 return;
517 }
518 }
519
520 // One of the prepatory steps failed
521 oop ex = current->pending_exception();
522 log_error(cds)("Dynamic dump has failed");
523 log_error(cds)("%s: %s", ex->klass()->external_name(),
524 java_lang_String::as_utf8_string(java_lang_Throwable::message(ex)));
525 CLEAR_PENDING_EXCEPTION;
526 CDSConfig::disable_dumping_dynamic_archive(); // Just for good measure
527 }
528
529 // This is called by "jcmd VM.cds dynamic_dump"
530 void DynamicArchive::dump_for_jcmd(const char* archive_name, TRAPS) {
531 CDSConfig::DumperThreadMark dumper_thread_mark(THREAD);
532 assert(CDSConfig::is_using_archive() && RecordDynamicDumpInfo, "already checked in arguments.cpp");
533 assert(ArchiveClassesAtExit == nullptr, "already checked in arguments.cpp");
534 assert(CDSConfig::is_dumping_dynamic_archive(), "already checked by check_for_dynamic_dump() during VM startup");
535 MetaspaceShared::link_shared_classes(true/*from jcmd*/, CHECK);
536 // copy shared path table to saved.
537 VM_PopulateDynamicDumpSharedSpace op(archive_name);
538 VMThread::execute(&op);
539 }
540
541 bool DynamicArchive::validate(FileMapInfo* dynamic_info) {
542 assert(!dynamic_info->is_static(), "must be");
543 // Check if the recorded base archive matches with the current one
544 FileMapInfo* base_info = FileMapInfo::current_info();
545 DynamicArchiveHeader* dynamic_header = dynamic_info->dynamic_header();
546
547 // Check the header crc
548 if (dynamic_header->base_header_crc() != base_info->crc()) {
549 log_warning(cds)("Dynamic archive cannot be used: static archive header checksum verification failed.");
550 return false;
551 }
552
553 // Check each space's crc
554 for (int i = 0; i < MetaspaceShared::n_regions; i++) {
555 if (dynamic_header->base_region_crc(i) != base_info->region_crc(i)) {
556 log_warning(cds)("Dynamic archive cannot be used: static archive region #%d checksum verification failed.", i);
|
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "cds/aotClassLinker.hpp"
27 #include "cds/archiveBuilder.hpp"
28 #include "cds/archiveHeapWriter.hpp"
29 #include "cds/archiveUtils.inline.hpp"
30 #include "cds/cds_globals.hpp"
31 #include "cds/cdsConfig.hpp"
32 #include "cds/dynamicArchive.hpp"
33 #include "cds/metaspaceShared.hpp"
34 #include "cds/regeneratedClasses.hpp"
35 #include "classfile/classLoader.hpp"
36 #include "classfile/classLoaderData.inline.hpp"
37 #include "classfile/symbolTable.hpp"
38 #include "classfile/systemDictionaryShared.hpp"
39 #include "classfile/vmSymbols.hpp"
40 #include "gc/shared/collectedHeap.hpp"
41 #include "gc/shared/gcVMOperations.hpp"
42 #include "gc/shared/gc_globals.hpp"
43 #include "jvm.h"
44 #include "logging/log.hpp"
45 #include "memory/metaspaceClosure.hpp"
46 #include "memory/resourceArea.hpp"
47 #include "oops/klass.inline.hpp"
48 #include "runtime/arguments.hpp"
49 #include "runtime/os.hpp"
50 #include "runtime/sharedRuntime.hpp"
51 #include "runtime/vmOperations.hpp"
52 #include "runtime/vmThread.hpp"
53 #include "utilities/align.hpp"
135 relocate_metaspaceobj_embedded_pointers();
136
137 verify_estimate_size(_estimated_metaspaceobj_bytes, "MetaspaceObjs");
138
139 sort_methods();
140
141 log_info(cds)("Make classes shareable");
142 make_klasses_shareable();
143
144 char* serialized_data;
145 {
146 // Write the symbol table and system dictionaries to the RO space.
147 // Note that these tables still point to the *original* objects, so
148 // they would need to call DynamicArchive::original_to_target() to
149 // get the correct addresses.
150 assert(current_dump_region() == ro_region(), "Must be RO space");
151 SymbolTable::write_to_archive(symbols());
152
153 ArchiveBuilder::OtherROAllocMark mark;
154 SystemDictionaryShared::write_to_archive(false);
155
156 DynamicArchive::dump_array_klasses();
157 AOTClassLinker::write_to_archive();
158 TrainingData::dump_training_data();
159
160 serialized_data = ro_region()->top();
161 WriteClosure wc(ro_region());
162 ArchiveBuilder::serialize_dynamic_archivable_items(&wc);
163 }
164
165 verify_estimate_size(_estimated_hashtable_bytes, "Hashtables");
166
167 log_info(cds)("Adjust lambda proxy class dictionary");
168 SystemDictionaryShared::adjust_lambda_proxy_class_dictionary();
169
170 log_info(cds)("Make training data shareable");
171 make_training_data_shareable();
172
173 relocate_to_requested();
174
175 write_archive(serialized_data);
176 release_header();
177 DynamicArchive::post_dump();
178
179 post_dump();
180
181 assert(_num_dump_regions_used == _total_dump_regions, "must be");
182 verify_universe("After CDS dynamic dump");
183 }
184
185 virtual void iterate_roots(MetaspaceClosure* it) {
186 FileMapInfo::metaspace_pointers_do(it);
187 SystemDictionaryShared::dumptime_classes_do(it);
188 TrainingData::iterate_roots(it);
189 iterate_primitive_array_klasses(it);
190 }
191
192 void iterate_primitive_array_klasses(MetaspaceClosure* it) {
193 for (int i = T_BOOLEAN; i <= T_LONG; i++) {
194 assert(is_java_primitive((BasicType)i), "sanity");
195 Klass* k = Universe::typeArrayKlass((BasicType)i); // this give you "[I", etc
196 assert(MetaspaceShared::is_shared_static((void*)k),
197 "one-dimensional primitive array should be in static archive");
198 ArrayKlass* ak = ArrayKlass::cast(k);
199 while (ak != nullptr && ak->is_shared()) {
200 Klass* next_k = ak->array_klass_or_null();
201 if (next_k != nullptr) {
202 ak = ArrayKlass::cast(next_k);
203 } else {
204 ak = nullptr;
205 }
206 }
207 if (ak != nullptr) {
208 assert(ak->dimension() > 1, "sanity");
497 assert(ArchiveClassesAtExit != nullptr, "sanity");
498 log_warning(cds)("-XX:ArchiveClassesAtExit" __THEMSG);
499 }
500 #undef __THEMSG
501 CDSConfig::disable_dumping_dynamic_archive();
502 }
503 }
504
505 void DynamicArchive::dump_at_exit(JavaThread* current, const char* archive_name) {
506 ExceptionMark em(current);
507 ResourceMark rm(current);
508 CDSConfig::DumperThreadMark dumper_thread_mark(current);
509
510 if (!CDSConfig::is_dumping_dynamic_archive() || archive_name == nullptr) {
511 return;
512 }
513
514 log_info(cds, dynamic)("Preparing for dynamic dump at exit in thread %s", current->name());
515
516 JavaThread* THREAD = current; // For TRAPS processing related to link_shared_classes
517
518 {
519 // FIXME-HACK - make sure we have at least one class in the dynamic archive
520 TempNewSymbol class_name = SymbolTable::new_symbol("sun/nio/cs/IBM850"); // unusual class; shouldn't be used by our tests cases.
521 SystemDictionary::resolve_or_null(class_name, Handle(), Handle(), THREAD);
522 guarantee(!HAS_PENDING_EXCEPTION, "must have this class");
523 }
524
525 MetaspaceShared::link_shared_classes(false/*not from jcmd*/, THREAD);
526 if (!HAS_PENDING_EXCEPTION) {
527 // copy shared path table to saved.
528 TrainingData::init_dumptime_table(CHECK); // captures TrainingDataSetLocker
529 if (!HAS_PENDING_EXCEPTION) {
530 VM_PopulateDynamicDumpSharedSpace op(archive_name);
531 VMThread::execute(&op);
532 return;
533 }
534 }
535
536 // One of the prepatory steps failed
537 oop ex = current->pending_exception();
538 log_error(cds)("Dynamic dump has failed");
539 log_error(cds)("%s: %s", ex->klass()->external_name(),
540 java_lang_String::as_utf8_string(java_lang_Throwable::message(ex)));
541 CLEAR_PENDING_EXCEPTION;
542 CDSConfig::disable_dumping_dynamic_archive(); // Just for good measure
543 }
544
545 // This is called by "jcmd VM.cds dynamic_dump"
546 void DynamicArchive::dump_for_jcmd(const char* archive_name, TRAPS) {
547 CDSConfig::DumperThreadMark dumper_thread_mark(THREAD);
548 assert(CDSConfig::is_using_archive() && RecordDynamicDumpInfo, "already checked in arguments.cpp");
549 assert(ArchiveClassesAtExit == nullptr, "already checked in arguments.cpp");
550 assert(CDSConfig::is_dumping_dynamic_archive(), "already checked by check_for_dynamic_dump() during VM startup");
551 MetaspaceShared::link_shared_classes(true/*from jcmd*/, CHECK);
552 // copy shared path table to saved.
553 TrainingData::init_dumptime_table(CHECK); // captures TrainingDataSetLocker
554 VM_PopulateDynamicDumpSharedSpace op(archive_name);
555 VMThread::execute(&op);
556 }
557
558 bool DynamicArchive::validate(FileMapInfo* dynamic_info) {
559 assert(!dynamic_info->is_static(), "must be");
560 // Check if the recorded base archive matches with the current one
561 FileMapInfo* base_info = FileMapInfo::current_info();
562 DynamicArchiveHeader* dynamic_header = dynamic_info->dynamic_header();
563
564 // Check the header crc
565 if (dynamic_header->base_header_crc() != base_info->crc()) {
566 log_warning(cds)("Dynamic archive cannot be used: static archive header checksum verification failed.");
567 return false;
568 }
569
570 // Check each space's crc
571 for (int i = 0; i < MetaspaceShared::n_regions; i++) {
572 if (dynamic_header->base_region_crc(i) != base_info->region_crc(i)) {
573 log_warning(cds)("Dynamic archive cannot be used: static archive region #%d checksum verification failed.", i);
|