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 "cds/archiveHeapLoader.hpp"
26 #include "cds/cdsConfig.hpp"
27 #include "cds/classListWriter.hpp"
28 #include "cds/filemap.hpp"
29 #include "cds/heapShared.hpp"
30 #include "classfile/classLoaderDataShared.hpp"
31 #include "classfile/moduleEntry.hpp"
32 #include "include/jvm_io.h"
33 #include "logging/log.hpp"
34 #include "memory/universe.hpp"
35 #include "runtime/arguments.hpp"
36 #include "runtime/globals_extension.hpp"
37 #include "runtime/java.hpp"
38 #include "runtime/vmThread.hpp"
39 #include "utilities/defaultStream.hpp"
40 #include "utilities/formatBuffer.hpp"
41
42 bool CDSConfig::_is_dumping_static_archive = false;
43 bool CDSConfig::_is_dumping_preimage_static_archive = false;
44 bool CDSConfig::_is_dumping_final_static_archive = false;
45 bool CDSConfig::_is_dumping_dynamic_archive = false;
46 bool CDSConfig::_is_using_optimized_module_handling = true;
47 bool CDSConfig::_is_dumping_full_module_graph = true;
48 bool CDSConfig::_is_using_full_module_graph = true;
49 bool CDSConfig::_has_aot_linked_classes = false;
50 bool CDSConfig::_old_cds_flags_used = false;
51 bool CDSConfig::_new_aot_flags_used = false;
52 bool CDSConfig::_disable_heap_dumping = false;
53
54 const char* CDSConfig::_default_archive_path = nullptr;
55 const char* CDSConfig::_input_static_archive_path = nullptr;
56 const char* CDSConfig::_input_dynamic_archive_path = nullptr;
57 const char* CDSConfig::_output_archive_path = nullptr;
58
59 JavaThread* CDSConfig::_dumper_thread = nullptr;
60
61 int CDSConfig::get_status() {
62 assert(Universe::is_fully_initialized(), "status is finalized only after Universe is initialized");
63 return (is_dumping_archive() ? IS_DUMPING_ARCHIVE : 0) |
64 (is_dumping_method_handles() ? IS_DUMPING_METHOD_HANDLES : 0) |
65 (is_dumping_static_archive() ? IS_DUMPING_STATIC_ARCHIVE : 0) |
66 (is_logging_lambda_form_invokers() ? IS_LOGGING_LAMBDA_FORM_INVOKERS : 0) |
67 (is_using_archive() ? IS_USING_ARCHIVE : 0);
68 }
69
70 DEBUG_ONLY(static bool _cds_ergo_initialize_started = false);
71
72 void CDSConfig::ergo_initialize() {
73 DEBUG_ONLY(_cds_ergo_initialize_started = true);
103
104 const char* CDSConfig::default_archive_path() {
105 // The path depends on UseCompressedOops, etc, which are set by GC ergonomics just
106 // before CDSConfig::ergo_initialize() is called.
107 assert(_cds_ergo_initialize_started, "sanity");
108 if (_default_archive_path == nullptr) {
109 stringStream tmp;
110 const char* subdir = WINDOWS_ONLY("bin") NOT_WINDOWS("lib");
111 tmp.print("%s%s%s%s%s%sclasses", Arguments::get_java_home(), os::file_separator(), subdir,
112 os::file_separator(), Abstract_VM_Version::vm_variant(), os::file_separator());
113 #ifdef _LP64
114 if (!UseCompressedOops) {
115 tmp.print_raw("_nocoops");
116 }
117 if (UseCompactObjectHeaders) {
118 // Note that generation of xxx_coh.jsa variants require
119 // --enable-cds-archive-coh at build time
120 tmp.print_raw("_coh");
121 }
122 #endif
123 tmp.print_raw(".jsa");
124 _default_archive_path = os::strdup(tmp.base());
125 }
126 return _default_archive_path;
127 }
128
129 int CDSConfig::num_archive_paths(const char* path_spec) {
130 if (path_spec == nullptr) {
131 return 0;
132 }
133 int npaths = 1;
134 char* p = (char*)path_spec;
135 while (*p != '\0') {
136 if (*p == os::path_separator()[0]) {
137 npaths++;
138 }
139 p++;
140 }
141 return npaths;
142 }
291 for (const char* property : incompatible_properties) {
292 if (strcmp(key, property) == 0) {
293 stop_dumping_full_module_graph();
294 stop_using_full_module_graph();
295 log_info(cds)("full module graph: disabled due to incompatible property: %s=%s", key, value);
296 break;
297 }
298 }
299
300 }
301
302 // Returns any JVM command-line option, such as "--patch-module", that's not supported by CDS.
303 static const char* find_any_unsupported_module_option() {
304 // Note that arguments.cpp has translated the command-line options into properties. If we find an
305 // unsupported property, translate it back to its command-line option for better error reporting.
306
307 // The following properties are checked by Arguments::is_internal_module_property() and cannot be
308 // directly specified in the command-line.
309 static const char* unsupported_module_properties[] = {
310 "jdk.module.limitmods",
311 "jdk.module.upgrade.path",
312 "jdk.module.patch.0"
313 };
314 static const char* unsupported_module_options[] = {
315 "--limit-modules",
316 "--upgrade-module-path",
317 "--patch-module"
318 };
319
320 assert(ARRAY_SIZE(unsupported_module_properties) == ARRAY_SIZE(unsupported_module_options), "must be");
321 SystemProperty* sp = Arguments::system_properties();
322 while (sp != nullptr) {
323 for (uint i = 0; i < ARRAY_SIZE(unsupported_module_properties); i++) {
324 if (strcmp(sp->key(), unsupported_module_properties[i]) == 0) {
325 return unsupported_module_options[i];
326 }
327 }
328 sp = sp->next();
329 }
330
331 return nullptr; // not found
332 }
333
334 void CDSConfig::check_unsupported_dumping_module_options() {
335 assert(is_dumping_archive(), "this function is only used with CDS dump time");
336 const char* option = find_any_unsupported_module_option();
337 if (option != nullptr) {
338 vm_exit_during_initialization("Cannot use the following option when dumping the shared archive", option);
339 }
340 // Check for an exploded module build in use with -Xshare:dump.
341 if (!Arguments::has_jimage()) {
342 vm_exit_during_initialization("Dumping the shared archive is not supported with an exploded module build");
343 }
344 }
345
346 bool CDSConfig::has_unsupported_runtime_module_options() {
347 assert(is_using_archive(), "this function is only used with -Xshare:{on,auto}");
348 if (ArchiveClassesAtExit != nullptr) {
349 // dynamic dumping, just return false for now.
350 // check_unsupported_dumping_properties() will be called later to check the same set of
351 // properties, and will exit the VM with the correct error message if the unsupported properties
352 // are used.
353 return false;
354 }
355 const char* option = find_any_unsupported_module_option();
356 if (option != nullptr) {
357 if (RequireSharedSpaces) {
358 warning("CDS is disabled when the %s option is specified.", option);
359 } else {
360 if (new_aot_flags_used()) {
361 log_warning(cds)("AOT cache is disabled when the %s option is specified.", option);
362 } else {
363 log_info(cds)("CDS is disabled when the %s option is specified.", option);
364 }
365 }
366 return true;
367 }
368 return false;
369 }
370
371 #define CHECK_NEW_FLAG(f) check_new_flag(FLAG_IS_DEFAULT(f), #f)
372
373 void CDSConfig::check_new_flag(bool new_flag_is_default, const char* new_flag_name) {
374 if (old_cds_flags_used() && !new_flag_is_default) {
375 vm_exit_during_initialization(err_msg("Option %s cannot be used at the same time with "
376 "-Xshare:on, -Xshare:auto, -Xshare:off, -Xshare:dump, "
377 "DumpLoadedClassList, SharedClassListFile, or SharedArchiveFile",
378 new_flag_name));
379 }
380 }
381
382 #define CHECK_SINGLE_PATH(f) check_flag_single_path(#f, f)
383
384 void CDSConfig::check_flag_single_path(const char* flag_name, const char* value) {
385 if (value != nullptr && num_archive_paths(value) != 1) {
386 vm_exit_during_initialization(err_msg("Option %s must specify a single file name", flag_name));
387 }
481 void CDSConfig::ergo_init_aot_paths() {
482 assert(_cds_ergo_initialize_started, "sanity");
483 if (is_dumping_static_archive()) {
484 if (is_dumping_preimage_static_archive()) {
485 _output_archive_path = AOTConfiguration;
486 } else {
487 assert(is_dumping_final_static_archive(), "must be");
488 _input_static_archive_path = AOTConfiguration;
489 _output_archive_path = AOTCache;
490 }
491 } else if (is_using_archive()) {
492 if (FLAG_IS_DEFAULT(AOTCache)) {
493 // Only -XX:AOTMode={auto,on} is specified
494 _input_static_archive_path = default_archive_path();
495 } else {
496 _input_static_archive_path = AOTCache;
497 }
498 }
499 }
500
501 bool CDSConfig::check_vm_args_consistency(bool patch_mod_javabase, bool mode_flag_cmd_line) {
502 assert(!_cds_ergo_initialize_started, "This is called earlier than CDSConfig::ergo_initialize()");
503
504 check_aot_flags();
505
506 if (!FLAG_IS_DEFAULT(AOTMode)) {
507 // Using any form of the new AOTMode switch enables enhanced optimizations.
508 FLAG_SET_ERGO_IF_DEFAULT(AOTClassLinking, true);
509 }
510
511 if (AOTClassLinking) {
512 // If AOTClassLinking is specified, enable all AOT optimizations by default.
513 FLAG_SET_ERGO_IF_DEFAULT(AOTInvokeDynamicLinking, true);
514 } else {
515 // AOTInvokeDynamicLinking depends on AOTClassLinking.
516 FLAG_SET_ERGO(AOTInvokeDynamicLinking, false);
517 }
518
519 if (is_dumping_static_archive()) {
520 if (is_dumping_preimage_static_archive()) {
521 // Don't tweak execution mode
548 return false;
549 }
550
551 if (ArchiveClassesAtExit == nullptr && !RecordDynamicDumpInfo) {
552 disable_dumping_dynamic_archive();
553 } else {
554 enable_dumping_dynamic_archive(ArchiveClassesAtExit);
555 }
556
557 if (AutoCreateSharedArchive) {
558 if (SharedArchiveFile == nullptr) {
559 log_warning(cds)("-XX:+AutoCreateSharedArchive requires -XX:SharedArchiveFile");
560 return false;
561 }
562 if (ArchiveClassesAtExit != nullptr) {
563 log_warning(cds)("-XX:+AutoCreateSharedArchive does not work with ArchiveClassesAtExit");
564 return false;
565 }
566 }
567
568 if (is_using_archive() && patch_mod_javabase) {
569 Arguments::no_shared_spaces("CDS is disabled when " JAVA_BASE_NAME " module is patched.");
570 }
571 if (is_using_archive() && has_unsupported_runtime_module_options()) {
572 UseSharedSpaces = false;
573 }
574
575 if (is_dumping_archive()) {
576 // Always verify non-system classes during CDS dump
577 if (!BytecodeVerificationRemote) {
578 BytecodeVerificationRemote = true;
579 log_info(cds)("All non-system classes will be verified (-Xverify:remote) during CDS dump time.");
580 }
581 }
582
583 return true;
584 }
585
586 void CDSConfig::prepare_for_dumping() {
587 assert(CDSConfig::is_dumping_archive(), "sanity");
588
737 reason = "Programmatically disabled";
738 } else {
739 reason = check_options_incompatible_with_dumping_heap();
740 }
741
742 assert(reason != nullptr, "sanity");
743 log_info(cds)("Archived java heap is not supported: %s", reason);
744 }
745
746 // This is *Legacy* optimization for lambdas before JEP 483. May be removed in the future.
747 bool CDSConfig::is_dumping_lambdas_in_legacy_mode() {
748 return !is_dumping_method_handles();
749 }
750
751 #if INCLUDE_CDS_JAVA_HEAP
752 bool CDSConfig::are_vm_options_incompatible_with_dumping_heap() {
753 return check_options_incompatible_with_dumping_heap() != nullptr;
754 }
755
756 bool CDSConfig::is_dumping_heap() {
757 if (!(is_dumping_classic_static_archive() || is_dumping_final_static_archive())
758 || are_vm_options_incompatible_with_dumping_heap()
759 || _disable_heap_dumping) {
760 return false;
761 }
762 return true;
763 }
764
765 bool CDSConfig::is_loading_heap() {
766 return ArchiveHeapLoader::is_in_use();
767 }
768
769 bool CDSConfig::is_using_full_module_graph() {
770 if (ClassLoaderDataShared::is_full_module_graph_loaded()) {
771 return true;
772 }
773
774 if (!_is_using_full_module_graph) {
775 return false;
776 }
|
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 "cds/archiveHeapLoader.hpp"
26 #include "cds/cdsConfig.hpp"
27 #include "cds/classListWriter.hpp"
28 #include "cds/filemap.hpp"
29 #include "cds/heapShared.hpp"
30 #include "classfile/classLoaderDataShared.hpp"
31 #include "classfile/moduleEntry.hpp"
32 #include "include/jvm_io.h"
33 #include "logging/log.hpp"
34 #include "memory/universe.hpp"
35 #include "runtime/arguments.hpp"
36 #include "runtime/globals.hpp"
37 #include "runtime/globals_extension.hpp"
38 #include "runtime/java.hpp"
39 #include "runtime/vmThread.hpp"
40 #include "utilities/defaultStream.hpp"
41 #include "utilities/formatBuffer.hpp"
42
43 bool CDSConfig::_is_dumping_static_archive = false;
44 bool CDSConfig::_is_dumping_preimage_static_archive = false;
45 bool CDSConfig::_is_dumping_final_static_archive = false;
46 bool CDSConfig::_is_dumping_dynamic_archive = false;
47 bool CDSConfig::_is_using_optimized_module_handling = true;
48 bool CDSConfig::_is_dumping_full_module_graph = true;
49 bool CDSConfig::_is_using_full_module_graph = true;
50 bool CDSConfig::_has_aot_linked_classes = false;
51 bool CDSConfig::_old_cds_flags_used = false;
52 bool CDSConfig::_new_aot_flags_used = false;
53 bool CDSConfig::_disable_heap_dumping = false;
54
55 bool CDSConfig::_module_patching_disables_cds = false;
56 bool CDSConfig::_java_base_module_patching_disables_cds = false;
57
58 const char* CDSConfig::_default_archive_path = nullptr;
59 const char* CDSConfig::_input_static_archive_path = nullptr;
60 const char* CDSConfig::_input_dynamic_archive_path = nullptr;
61 const char* CDSConfig::_output_archive_path = nullptr;
62
63 JavaThread* CDSConfig::_dumper_thread = nullptr;
64
65 int CDSConfig::get_status() {
66 assert(Universe::is_fully_initialized(), "status is finalized only after Universe is initialized");
67 return (is_dumping_archive() ? IS_DUMPING_ARCHIVE : 0) |
68 (is_dumping_method_handles() ? IS_DUMPING_METHOD_HANDLES : 0) |
69 (is_dumping_static_archive() ? IS_DUMPING_STATIC_ARCHIVE : 0) |
70 (is_logging_lambda_form_invokers() ? IS_LOGGING_LAMBDA_FORM_INVOKERS : 0) |
71 (is_using_archive() ? IS_USING_ARCHIVE : 0);
72 }
73
74 DEBUG_ONLY(static bool _cds_ergo_initialize_started = false);
75
76 void CDSConfig::ergo_initialize() {
77 DEBUG_ONLY(_cds_ergo_initialize_started = true);
107
108 const char* CDSConfig::default_archive_path() {
109 // The path depends on UseCompressedOops, etc, which are set by GC ergonomics just
110 // before CDSConfig::ergo_initialize() is called.
111 assert(_cds_ergo_initialize_started, "sanity");
112 if (_default_archive_path == nullptr) {
113 stringStream tmp;
114 const char* subdir = WINDOWS_ONLY("bin") NOT_WINDOWS("lib");
115 tmp.print("%s%s%s%s%s%sclasses", Arguments::get_java_home(), os::file_separator(), subdir,
116 os::file_separator(), Abstract_VM_Version::vm_variant(), os::file_separator());
117 #ifdef _LP64
118 if (!UseCompressedOops) {
119 tmp.print_raw("_nocoops");
120 }
121 if (UseCompactObjectHeaders) {
122 // Note that generation of xxx_coh.jsa variants require
123 // --enable-cds-archive-coh at build time
124 tmp.print_raw("_coh");
125 }
126 #endif
127 if (is_valhalla_preview()) {
128 tmp.print_raw("_valhalla");
129 }
130 tmp.print_raw(".jsa");
131 _default_archive_path = os::strdup(tmp.base());
132 }
133 return _default_archive_path;
134 }
135
136 int CDSConfig::num_archive_paths(const char* path_spec) {
137 if (path_spec == nullptr) {
138 return 0;
139 }
140 int npaths = 1;
141 char* p = (char*)path_spec;
142 while (*p != '\0') {
143 if (*p == os::path_separator()[0]) {
144 npaths++;
145 }
146 p++;
147 }
148 return npaths;
149 }
298 for (const char* property : incompatible_properties) {
299 if (strcmp(key, property) == 0) {
300 stop_dumping_full_module_graph();
301 stop_using_full_module_graph();
302 log_info(cds)("full module graph: disabled due to incompatible property: %s=%s", key, value);
303 break;
304 }
305 }
306
307 }
308
309 // Returns any JVM command-line option, such as "--patch-module", that's not supported by CDS.
310 static const char* find_any_unsupported_module_option() {
311 // Note that arguments.cpp has translated the command-line options into properties. If we find an
312 // unsupported property, translate it back to its command-line option for better error reporting.
313
314 // The following properties are checked by Arguments::is_internal_module_property() and cannot be
315 // directly specified in the command-line.
316 static const char* unsupported_module_properties[] = {
317 "jdk.module.limitmods",
318 "jdk.module.upgrade.path"
319 };
320 static const char* unsupported_module_options[] = {
321 "--limit-modules",
322 "--upgrade-module-path"
323 };
324
325 assert(ARRAY_SIZE(unsupported_module_properties) == ARRAY_SIZE(unsupported_module_options), "must be");
326 SystemProperty* sp = Arguments::system_properties();
327 while (sp != nullptr) {
328 for (uint i = 0; i < ARRAY_SIZE(unsupported_module_properties); i++) {
329 if (strcmp(sp->key(), unsupported_module_properties[i]) == 0) {
330 return unsupported_module_options[i];
331 }
332 }
333 sp = sp->next();
334 }
335
336 return nullptr; // not found
337 }
338
339 void CDSConfig::check_unsupported_dumping_module_options() {
340 assert(is_dumping_archive(), "this function is only used with CDS dump time");
341 const char* option = find_any_unsupported_module_option();
342 if (option != nullptr) {
343 vm_exit_during_initialization("Cannot use the following option when dumping the shared archive", option);
344 }
345
346 if (module_patching_disables_cds()) {
347 vm_exit_during_initialization(
348 "Cannot use the following option when dumping the shared archive", "--patch-module");
349 }
350
351 // Check for an exploded module build in use with -Xshare:dump.
352 if (!Arguments::has_jimage()) {
353 vm_exit_during_initialization("Dumping the shared archive is not supported with an exploded module build");
354 }
355 }
356
357 bool CDSConfig::has_unsupported_runtime_module_options() {
358 assert(is_using_archive(), "this function is only used with -Xshare:{on,auto}");
359 if (ArchiveClassesAtExit != nullptr) {
360 // dynamic dumping, just return false for now.
361 // check_unsupported_dumping_properties() will be called later to check the same set of
362 // properties, and will exit the VM with the correct error message if the unsupported properties
363 // are used.
364 return false;
365 }
366 const char* option = find_any_unsupported_module_option();
367 if (option != nullptr) {
368 if (RequireSharedSpaces) {
369 warning("CDS is disabled when the %s option is specified.", option);
370 } else {
371 if (new_aot_flags_used()) {
372 log_warning(cds)("AOT cache is disabled when the %s option is specified.", option);
373 } else {
374 log_info(cds)("CDS is disabled when the %s option is specified.", option);
375 }
376 }
377 return true;
378 }
379
380 if (module_patching_disables_cds()) {
381 if (RequireSharedSpaces) {
382 warning("CDS is disabled when the %s option is specified.", "--patch-module");
383 } else {
384 log_info(cds)("CDS is disabled when the %s option is specified.", "--patch-module");
385 }
386 return true;
387 }
388
389 return false;
390 }
391
392 #define CHECK_NEW_FLAG(f) check_new_flag(FLAG_IS_DEFAULT(f), #f)
393
394 void CDSConfig::check_new_flag(bool new_flag_is_default, const char* new_flag_name) {
395 if (old_cds_flags_used() && !new_flag_is_default) {
396 vm_exit_during_initialization(err_msg("Option %s cannot be used at the same time with "
397 "-Xshare:on, -Xshare:auto, -Xshare:off, -Xshare:dump, "
398 "DumpLoadedClassList, SharedClassListFile, or SharedArchiveFile",
399 new_flag_name));
400 }
401 }
402
403 #define CHECK_SINGLE_PATH(f) check_flag_single_path(#f, f)
404
405 void CDSConfig::check_flag_single_path(const char* flag_name, const char* value) {
406 if (value != nullptr && num_archive_paths(value) != 1) {
407 vm_exit_during_initialization(err_msg("Option %s must specify a single file name", flag_name));
408 }
502 void CDSConfig::ergo_init_aot_paths() {
503 assert(_cds_ergo_initialize_started, "sanity");
504 if (is_dumping_static_archive()) {
505 if (is_dumping_preimage_static_archive()) {
506 _output_archive_path = AOTConfiguration;
507 } else {
508 assert(is_dumping_final_static_archive(), "must be");
509 _input_static_archive_path = AOTConfiguration;
510 _output_archive_path = AOTCache;
511 }
512 } else if (is_using_archive()) {
513 if (FLAG_IS_DEFAULT(AOTCache)) {
514 // Only -XX:AOTMode={auto,on} is specified
515 _input_static_archive_path = default_archive_path();
516 } else {
517 _input_static_archive_path = AOTCache;
518 }
519 }
520 }
521
522 bool CDSConfig::check_vm_args_consistency(bool mode_flag_cmd_line) {
523 assert(!_cds_ergo_initialize_started, "This is called earlier than CDSConfig::ergo_initialize()");
524
525 check_aot_flags();
526
527 if (!FLAG_IS_DEFAULT(AOTMode)) {
528 // Using any form of the new AOTMode switch enables enhanced optimizations.
529 FLAG_SET_ERGO_IF_DEFAULT(AOTClassLinking, true);
530 }
531
532 if (AOTClassLinking) {
533 // If AOTClassLinking is specified, enable all AOT optimizations by default.
534 FLAG_SET_ERGO_IF_DEFAULT(AOTInvokeDynamicLinking, true);
535 } else {
536 // AOTInvokeDynamicLinking depends on AOTClassLinking.
537 FLAG_SET_ERGO(AOTInvokeDynamicLinking, false);
538 }
539
540 if (is_dumping_static_archive()) {
541 if (is_dumping_preimage_static_archive()) {
542 // Don't tweak execution mode
569 return false;
570 }
571
572 if (ArchiveClassesAtExit == nullptr && !RecordDynamicDumpInfo) {
573 disable_dumping_dynamic_archive();
574 } else {
575 enable_dumping_dynamic_archive(ArchiveClassesAtExit);
576 }
577
578 if (AutoCreateSharedArchive) {
579 if (SharedArchiveFile == nullptr) {
580 log_warning(cds)("-XX:+AutoCreateSharedArchive requires -XX:SharedArchiveFile");
581 return false;
582 }
583 if (ArchiveClassesAtExit != nullptr) {
584 log_warning(cds)("-XX:+AutoCreateSharedArchive does not work with ArchiveClassesAtExit");
585 return false;
586 }
587 }
588
589 if (is_using_archive() && java_base_module_patching_disables_cds() && module_patching_disables_cds()) {
590 Arguments::no_shared_spaces("CDS is disabled when " JAVA_BASE_NAME " module is patched.");
591 }
592 if (is_using_archive() && has_unsupported_runtime_module_options()) {
593 UseSharedSpaces = false;
594 }
595
596 if (is_dumping_archive()) {
597 // Always verify non-system classes during CDS dump
598 if (!BytecodeVerificationRemote) {
599 BytecodeVerificationRemote = true;
600 log_info(cds)("All non-system classes will be verified (-Xverify:remote) during CDS dump time.");
601 }
602 }
603
604 return true;
605 }
606
607 void CDSConfig::prepare_for_dumping() {
608 assert(CDSConfig::is_dumping_archive(), "sanity");
609
758 reason = "Programmatically disabled";
759 } else {
760 reason = check_options_incompatible_with_dumping_heap();
761 }
762
763 assert(reason != nullptr, "sanity");
764 log_info(cds)("Archived java heap is not supported: %s", reason);
765 }
766
767 // This is *Legacy* optimization for lambdas before JEP 483. May be removed in the future.
768 bool CDSConfig::is_dumping_lambdas_in_legacy_mode() {
769 return !is_dumping_method_handles();
770 }
771
772 #if INCLUDE_CDS_JAVA_HEAP
773 bool CDSConfig::are_vm_options_incompatible_with_dumping_heap() {
774 return check_options_incompatible_with_dumping_heap() != nullptr;
775 }
776
777 bool CDSConfig::is_dumping_heap() {
778 if (is_valhalla_preview()) {
779 // Not working yet -- e.g., HeapShared::oop_hash() needs to be implemented for value oops
780 return false;
781 }
782 if (!(is_dumping_classic_static_archive() || is_dumping_final_static_archive())
783 || are_vm_options_incompatible_with_dumping_heap()
784 || _disable_heap_dumping) {
785 return false;
786 }
787 return true;
788 }
789
790 bool CDSConfig::is_loading_heap() {
791 return ArchiveHeapLoader::is_in_use();
792 }
793
794 bool CDSConfig::is_using_full_module_graph() {
795 if (ClassLoaderDataShared::is_full_module_graph_loaded()) {
796 return true;
797 }
798
799 if (!_is_using_full_module_graph) {
800 return false;
801 }
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