1 /*
   2  * Copyright (c) 2023, 2025, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  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 "cds/aotLogging.hpp"
  26 #include "cds/aotMapLogger.hpp"
  27 #include "cds/archiveHeapLoader.hpp"
  28 #include "cds/cdsConfig.hpp"
  29 #include "cds/classListWriter.hpp"
  30 #include "cds/filemap.hpp"
  31 #include "cds/heapShared.hpp"
  32 #include "classfile/classLoaderDataShared.hpp"
  33 #include "classfile/moduleEntry.hpp"
  34 #include "code/aotCodeCache.hpp"
  35 #include "include/jvm_io.h"
  36 #include "logging/log.hpp"
  37 #include "memory/universe.hpp"
  38 #include "prims/jvmtiAgentList.hpp"
  39 #include "runtime/arguments.hpp"
  40 #include "runtime/globals_extension.hpp"
  41 #include "runtime/java.hpp"
  42 #include "runtime/vmThread.hpp"
  43 #include "utilities/defaultStream.hpp"
  44 #include "utilities/formatBuffer.hpp"
  45 
  46 bool CDSConfig::_is_dumping_static_archive = false;
  47 bool CDSConfig::_is_dumping_preimage_static_archive = false;
  48 bool CDSConfig::_is_dumping_final_static_archive = false;
  49 bool CDSConfig::_is_dumping_dynamic_archive = false;
  50 bool CDSConfig::_is_using_optimized_module_handling = true;
  51 bool CDSConfig::_is_dumping_full_module_graph = true;
  52 bool CDSConfig::_is_using_full_module_graph = true;
  53 bool CDSConfig::_has_aot_linked_classes = false;
  54 bool CDSConfig::_is_single_command_training = false;
  55 bool CDSConfig::_has_temp_aot_config_file = false;
  56 bool CDSConfig::_old_cds_flags_used = false;
  57 bool CDSConfig::_new_aot_flags_used = false;
  58 bool CDSConfig::_disable_heap_dumping = false;
  59 bool CDSConfig::_is_at_aot_safepoint = false;
  60 
  61 const char* CDSConfig::_default_archive_path = nullptr;
  62 const char* CDSConfig::_input_static_archive_path = nullptr;
  63 const char* CDSConfig::_input_dynamic_archive_path = nullptr;
  64 const char* CDSConfig::_output_archive_path = nullptr;
  65 
  66 JavaThread* CDSConfig::_dumper_thread = nullptr;
  67 
  68 int CDSConfig::get_status() {
  69   assert(Universe::is_fully_initialized(), "status is finalized only after Universe is initialized");
  70   return (is_dumping_aot_linked_classes()   ? IS_DUMPING_AOT_LINKED_CLASSES : 0) |
  71          (is_dumping_archive()              ? IS_DUMPING_ARCHIVE : 0) |
  72          (is_dumping_method_handles()       ? IS_DUMPING_METHOD_HANDLES : 0) |
  73          (is_dumping_static_archive()       ? IS_DUMPING_STATIC_ARCHIVE : 0) |
  74          (is_logging_lambda_form_invokers() ? IS_LOGGING_LAMBDA_FORM_INVOKERS : 0) |
  75          (is_using_archive()                ? IS_USING_ARCHIVE : 0);
  76 }
  77 
  78 DEBUG_ONLY(static bool _cds_ergo_initialize_started = false);
  79 
  80 void CDSConfig::ergo_initialize() {
  81   DEBUG_ONLY(_cds_ergo_initialize_started = true);
  82 
  83   if (is_dumping_static_archive() && !is_dumping_final_static_archive()) {
  84     // Note: -Xshare and -XX:AOTMode flags are mutually exclusive.
  85     // - Classic workflow: -Xshare:on and -Xshare:dump cannot take effect at the same time.
  86     // - JEP 483 workflow: -XX:AOTMode:record and -XX:AOTMode=on cannot take effect at the same time.
  87     // So we can never come to here with RequireSharedSpaces==true.
  88     assert(!RequireSharedSpaces, "sanity");
  89 
  90     // If dumping the classic archive, or making an AOT training run (dumping a preimage archive),
  91     // for sanity, parse all classes from classfiles.
  92     // TODO: in the future, if we want to support re-training on top of an existing AOT cache, this
  93     // needs to be changed.
  94     UseSharedSpaces = false;
  95   }
  96 
  97   // Initialize shared archive paths which could include both base and dynamic archive paths
  98   // This must be after set_ergonomics_flags() called so flag UseCompressedOops is set properly.
  99   if (is_dumping_static_archive() || is_using_archive()) {
 100     if (new_aot_flags_used()) {
 101       ergo_init_aot_paths();
 102     } else {
 103       ergo_init_classic_archive_paths();
 104     }
 105   }
 106 
 107   if (!is_dumping_heap()) {
 108     _is_dumping_full_module_graph = false;
 109   }
 110 
 111   AOTMapLogger::ergo_initialize();
 112 }
 113 
 114 const char* CDSConfig::default_archive_path() {
 115   // The path depends on UseCompressedOops, etc, which are set by GC ergonomics just
 116   // before CDSConfig::ergo_initialize() is called.
 117   assert(_cds_ergo_initialize_started, "sanity");
 118   if (_default_archive_path == nullptr) {
 119     stringStream tmp;
 120     if (is_vm_statically_linked()) {
 121       // It's easier to form the path using JAVA_HOME as os::jvm_path
 122       // gives the path to the launcher executable on static JDK.
 123       const char* subdir = WINDOWS_ONLY("bin") NOT_WINDOWS("lib");
 124       tmp.print("%s%s%s%s%s%sclasses",
 125                 Arguments::get_java_home(), os::file_separator(),
 126                 subdir, os::file_separator(),
 127                 Abstract_VM_Version::vm_variant(), os::file_separator());
 128     } else {
 129       // Assume .jsa is in the same directory where libjvm resides on
 130       // non-static JDK.
 131       char jvm_path[JVM_MAXPATHLEN];
 132       os::jvm_path(jvm_path, sizeof(jvm_path));
 133       char *end = strrchr(jvm_path, *os::file_separator());
 134       if (end != nullptr) *end = '\0';
 135       tmp.print("%s%sclasses", jvm_path, os::file_separator());
 136     }
 137 #ifdef _LP64
 138     if (!UseCompressedOops) {
 139       tmp.print_raw("_nocoops");
 140     }
 141     if (UseCompactObjectHeaders) {
 142       // Note that generation of xxx_coh.jsa variants require
 143       // --enable-cds-archive-coh at build time
 144       tmp.print_raw("_coh");
 145     }
 146 #endif
 147     tmp.print_raw(".jsa");
 148     _default_archive_path = os::strdup(tmp.base());
 149   }
 150   return _default_archive_path;
 151 }
 152 
 153 int CDSConfig::num_archive_paths(const char* path_spec) {
 154   if (path_spec == nullptr) {
 155     return 0;
 156   }
 157   int npaths = 1;
 158   char* p = (char*)path_spec;
 159   while (*p != '\0') {
 160     if (*p == os::path_separator()[0]) {
 161       npaths++;
 162     }
 163     p++;
 164   }
 165   return npaths;
 166 }
 167 
 168 void CDSConfig::extract_archive_paths(const char* archive_path,
 169                                       const char** base_archive_path,
 170                                       const char** top_archive_path) {
 171   char* begin_ptr = (char*)archive_path;
 172   char* end_ptr = strchr((char*)archive_path, os::path_separator()[0]);
 173   if (end_ptr == nullptr || end_ptr == begin_ptr) {
 174     vm_exit_during_initialization("Base archive was not specified", archive_path);
 175   }
 176   size_t len = end_ptr - begin_ptr;
 177   char* cur_path = NEW_C_HEAP_ARRAY(char, len + 1, mtInternal);
 178   strncpy(cur_path, begin_ptr, len);
 179   cur_path[len] = '\0';
 180   *base_archive_path = cur_path;
 181 
 182   begin_ptr = ++end_ptr;
 183   if (*begin_ptr == '\0') {
 184     vm_exit_during_initialization("Top archive was not specified", archive_path);
 185   }
 186   end_ptr = strchr(begin_ptr, '\0');
 187   assert(end_ptr != nullptr, "sanity");
 188   len = end_ptr - begin_ptr;
 189   cur_path = NEW_C_HEAP_ARRAY(char, len + 1, mtInternal);
 190   strncpy(cur_path, begin_ptr, len + 1);
 191   *top_archive_path = cur_path;
 192 }
 193 
 194 void CDSConfig::ergo_init_classic_archive_paths() {
 195   assert(_cds_ergo_initialize_started, "sanity");
 196   if (ArchiveClassesAtExit != nullptr) {
 197     assert(!RecordDynamicDumpInfo, "already checked");
 198     if (is_dumping_static_archive()) {
 199       vm_exit_during_initialization("-XX:ArchiveClassesAtExit cannot be used with -Xshare:dump");
 200     }
 201     check_unsupported_dumping_module_options();
 202 
 203     if (os::same_files(default_archive_path(), ArchiveClassesAtExit)) {
 204       vm_exit_during_initialization(
 205         "Cannot specify the default CDS archive for -XX:ArchiveClassesAtExit", default_archive_path());
 206     }
 207   }
 208 
 209   if (SharedArchiveFile == nullptr) {
 210     _input_static_archive_path = default_archive_path();
 211     if (is_dumping_static_archive()) {
 212       _output_archive_path = _input_static_archive_path;
 213     }
 214   } else {
 215     int num_archives = num_archive_paths(SharedArchiveFile);
 216     assert(num_archives > 0, "must be");
 217 
 218     if (is_dumping_archive() && num_archives > 1) {
 219       vm_exit_during_initialization(
 220         "Cannot have more than 1 archive file specified in -XX:SharedArchiveFile during CDS dumping");
 221     }
 222 
 223     if (is_dumping_static_archive()) {
 224       assert(num_archives == 1, "just checked above");
 225       // Static dump is simple: only one archive is allowed in SharedArchiveFile. This file
 226       // will be overwritten regardless of its contents
 227       _output_archive_path = SharedArchiveFile;
 228     } else {
 229       // SharedArchiveFile may specify one or two files. In case (c), the path for base.jsa
 230       // is read from top.jsa
 231       //    (a) 1 file:  -XX:SharedArchiveFile=base.jsa
 232       //    (b) 2 files: -XX:SharedArchiveFile=base.jsa:top.jsa
 233       //    (c) 2 files: -XX:SharedArchiveFile=top.jsa
 234       //
 235       // However, if either RecordDynamicDumpInfo or ArchiveClassesAtExit is used, we do not
 236       // allow cases (b) and (c). Case (b) is already checked above.
 237 
 238       if (num_archives > 2) {
 239         vm_exit_during_initialization(
 240           "Cannot have more than 2 archive files specified in the -XX:SharedArchiveFile option");
 241       }
 242 
 243       if (num_archives == 1) {
 244         const char* base_archive_path = nullptr;
 245         bool success =
 246           FileMapInfo::get_base_archive_name_from_header(SharedArchiveFile, &base_archive_path);
 247         if (!success) {
 248           // If +AutoCreateSharedArchive and the specified shared archive does not exist,
 249           // regenerate the dynamic archive base on default archive.
 250           if (AutoCreateSharedArchive && !os::file_exists(SharedArchiveFile)) {
 251             enable_dumping_dynamic_archive(SharedArchiveFile);
 252             FLAG_SET_ERGO(ArchiveClassesAtExit, SharedArchiveFile);
 253             _input_static_archive_path = default_archive_path();
 254             FLAG_SET_ERGO(SharedArchiveFile, nullptr);
 255          } else {
 256             if (AutoCreateSharedArchive) {
 257               warning("-XX:+AutoCreateSharedArchive is unsupported when base CDS archive is not loaded. Run with -Xlog:cds for more info.");
 258               AutoCreateSharedArchive = false;
 259             }
 260             aot_log_error(aot)("Not a valid %s (%s)", type_of_archive_being_loaded(), SharedArchiveFile);
 261             Arguments::no_shared_spaces("invalid archive");
 262           }
 263         } else if (base_archive_path == nullptr) {
 264           // User has specified a single archive, which is a static archive.
 265           _input_static_archive_path = SharedArchiveFile;
 266         } else {
 267           // User has specified a single archive, which is a dynamic archive.
 268           _input_dynamic_archive_path = SharedArchiveFile;
 269           _input_static_archive_path = base_archive_path; // has been c-heap allocated.
 270         }
 271       } else {
 272         extract_archive_paths(SharedArchiveFile,
 273                               &_input_static_archive_path, &_input_dynamic_archive_path);
 274         if (_input_static_archive_path == nullptr) {
 275           assert(_input_dynamic_archive_path == nullptr, "must be");
 276           Arguments::no_shared_spaces("invalid archive");
 277         }
 278       }
 279 
 280       if (_input_dynamic_archive_path != nullptr) {
 281         // Check for case (c)
 282         if (RecordDynamicDumpInfo) {
 283           vm_exit_during_initialization("-XX:+RecordDynamicDumpInfo is unsupported when a dynamic CDS archive is specified in -XX:SharedArchiveFile",
 284                                         SharedArchiveFile);
 285         }
 286         if (ArchiveClassesAtExit != nullptr) {
 287           vm_exit_during_initialization("-XX:ArchiveClassesAtExit is unsupported when a dynamic CDS archive is specified in -XX:SharedArchiveFile",
 288                                         SharedArchiveFile);
 289         }
 290       }
 291 
 292       if (ArchiveClassesAtExit != nullptr && os::same_files(SharedArchiveFile, ArchiveClassesAtExit)) {
 293           vm_exit_during_initialization(
 294             "Cannot have the same archive file specified for -XX:SharedArchiveFile and -XX:ArchiveClassesAtExit",
 295             SharedArchiveFile);
 296       }
 297     }
 298   }
 299 }
 300 
 301 void CDSConfig::check_internal_module_property(const char* key, const char* value) {
 302   if (Arguments::is_incompatible_cds_internal_module_property(key)) {
 303     stop_using_optimized_module_handling();
 304     aot_log_info(aot)("optimized module handling: disabled due to incompatible property: %s=%s", key, value);
 305   }
 306 }
 307 
 308 void CDSConfig::check_incompatible_property(const char* key, const char* value) {
 309   static const char* incompatible_properties[] = {
 310     "java.system.class.loader",
 311     "jdk.module.showModuleResolution",
 312     "jdk.module.validation"
 313   };
 314 
 315   for (const char* property : incompatible_properties) {
 316     if (strcmp(key, property) == 0) {
 317       stop_dumping_full_module_graph();
 318       stop_using_full_module_graph();
 319       aot_log_info(aot)("full module graph: disabled due to incompatible property: %s=%s", key, value);
 320       break;
 321     }
 322   }
 323 
 324 }
 325 
 326 // Returns any JVM command-line option, such as "--patch-module", that's not supported by CDS.
 327 static const char* find_any_unsupported_module_option() {
 328   // Note that arguments.cpp has translated the command-line options into properties. If we find an
 329   // unsupported property, translate it back to its command-line option for better error reporting.
 330 
 331   // The following properties are checked by Arguments::is_internal_module_property() and cannot be
 332   // directly specified in the command-line.
 333   static const char* unsupported_module_properties[] = {
 334     "jdk.module.limitmods",
 335     "jdk.module.upgrade.path",
 336     "jdk.module.patch.0"
 337   };
 338   static const char* unsupported_module_options[] = {
 339     "--limit-modules",
 340     "--upgrade-module-path",
 341     "--patch-module"
 342   };
 343 
 344   assert(ARRAY_SIZE(unsupported_module_properties) == ARRAY_SIZE(unsupported_module_options), "must be");
 345   SystemProperty* sp = Arguments::system_properties();
 346   while (sp != nullptr) {
 347     for (uint i = 0; i < ARRAY_SIZE(unsupported_module_properties); i++) {
 348       if (strcmp(sp->key(), unsupported_module_properties[i]) == 0) {
 349         return unsupported_module_options[i];
 350       }
 351     }
 352     sp = sp->next();
 353   }
 354 
 355   return nullptr; // not found
 356 }
 357 
 358 void CDSConfig::check_unsupported_dumping_module_options() {
 359   assert(is_dumping_archive(), "this function is only used with CDS dump time");
 360   const char* option = find_any_unsupported_module_option();
 361   if (option != nullptr) {
 362     vm_exit_during_initialization("Cannot use the following option when dumping the shared archive", option);
 363   }
 364   // Check for an exploded module build in use with -Xshare:dump.
 365   if (!Arguments::has_jimage()) {
 366     vm_exit_during_initialization("Dumping the shared archive is not supported with an exploded module build");
 367   }
 368 }
 369 
 370 bool CDSConfig::has_unsupported_runtime_module_options() {
 371   assert(is_using_archive(), "this function is only used with -Xshare:{on,auto}");
 372   if (ArchiveClassesAtExit != nullptr) {
 373     // dynamic dumping, just return false for now.
 374     // check_unsupported_dumping_properties() will be called later to check the same set of
 375     // properties, and will exit the VM with the correct error message if the unsupported properties
 376     // are used.
 377     return false;
 378   }
 379   const char* option = find_any_unsupported_module_option();
 380   if (option != nullptr) {
 381     if (RequireSharedSpaces) {
 382       warning("CDS is disabled when the %s option is specified.", option);
 383     } else {
 384       if (new_aot_flags_used()) {
 385         aot_log_warning(aot)("AOT cache is disabled when the %s option is specified.", option);
 386       } else {
 387         aot_log_info(aot)("CDS is disabled when the %s option is specified.", option);
 388       }
 389     }
 390     return true;
 391   }
 392   return false;
 393 }
 394 
 395 #define CHECK_NEW_FLAG(f) check_new_flag(FLAG_IS_DEFAULT(f), #f)
 396 
 397 void CDSConfig::check_new_flag(bool new_flag_is_default, const char* new_flag_name) {
 398   if (old_cds_flags_used() && !new_flag_is_default) {
 399     vm_exit_during_initialization(err_msg("Option %s cannot be used at the same time with "
 400                                           "-Xshare:on, -Xshare:auto, -Xshare:off, -Xshare:dump, "
 401                                           "DumpLoadedClassList, SharedClassListFile, or SharedArchiveFile",
 402                                           new_flag_name));
 403   }
 404 }
 405 
 406 #define CHECK_SINGLE_PATH(f) check_flag_single_path(#f, f)
 407 
 408 void CDSConfig::check_flag_single_path(const char* flag_name, const char* value) {
 409   if (value != nullptr && num_archive_paths(value) != 1) {
 410     vm_exit_during_initialization(err_msg("Option %s must specify a single file name", flag_name));
 411   }
 412 }
 413 
 414 void CDSConfig::check_aot_flags() {
 415   if (!FLAG_IS_DEFAULT(DumpLoadedClassList) ||
 416       !FLAG_IS_DEFAULT(SharedClassListFile) ||
 417       !FLAG_IS_DEFAULT(SharedArchiveFile)) {
 418     _old_cds_flags_used = true;
 419   }
 420 
 421   // "New" AOT flags must not be mixed with "classic" CDS flags such as -Xshare:dump
 422   CHECK_NEW_FLAG(AOTCache);
 423   CHECK_NEW_FLAG(AOTCacheOutput);
 424   CHECK_NEW_FLAG(AOTConfiguration);
 425   CHECK_NEW_FLAG(AOTMode);
 426 
 427   CHECK_SINGLE_PATH(AOTCache);
 428   CHECK_SINGLE_PATH(AOTCacheOutput);
 429   CHECK_SINGLE_PATH(AOTConfiguration);
 430 
 431   if (FLAG_IS_DEFAULT(AOTCache) && AOTAdapterCaching) {
 432     log_debug(aot,codecache,init)("AOTCache is not specified - AOTAdapterCaching is ignored");
 433   }
 434   if (FLAG_IS_DEFAULT(AOTCache) && AOTStubCaching) {
 435     log_debug(aot,codecache,init)("AOTCache is not specified - AOTStubCaching is ignored");
 436   }
 437 
 438   bool has_cache = !FLAG_IS_DEFAULT(AOTCache);
 439   bool has_cache_output = !FLAG_IS_DEFAULT(AOTCacheOutput);
 440   bool has_config = !FLAG_IS_DEFAULT(AOTConfiguration);
 441   bool has_mode = !FLAG_IS_DEFAULT(AOTMode);
 442 
 443   if (!has_cache && !has_cache_output && !has_config && !has_mode) {
 444     // AOT flags are not used. Use classic CDS workflow
 445     return;
 446   }
 447 
 448   if (has_cache && has_cache_output) {
 449     vm_exit_during_initialization("Only one of AOTCache or AOTCacheOutput can be specified");
 450   }
 451 
 452   if (!has_cache && (!has_mode || strcmp(AOTMode, "auto") == 0)) {
 453     if (has_cache_output) {
 454       // If AOTCacheOutput has been set, effective mode is "record".
 455       // Default value for AOTConfiguration, if necessary, will be assigned in check_aotmode_record().
 456       log_info(aot)("Selected AOTMode=record because AOTCacheOutput is specified");
 457       FLAG_SET_ERGO(AOTMode, "record");
 458     }
 459   }
 460 
 461   // At least one AOT flag has been used
 462   _new_aot_flags_used = true;
 463 
 464   if (FLAG_IS_DEFAULT(AOTMode) || strcmp(AOTMode, "auto") == 0 || strcmp(AOTMode, "on") == 0) {
 465     check_aotmode_auto_or_on();
 466   } else if (strcmp(AOTMode, "off") == 0) {
 467     check_aotmode_off();
 468   } else if (strcmp(AOTMode, "record") == 0) {
 469     check_aotmode_record();
 470   } else {
 471     assert(strcmp(AOTMode, "create") == 0, "checked by AOTModeConstraintFunc");
 472     check_aotmode_create();
 473   }
 474 }
 475 
 476 void CDSConfig::check_aotmode_off() {
 477   UseSharedSpaces = false;
 478   RequireSharedSpaces = false;
 479 }
 480 
 481 void CDSConfig::check_aotmode_auto_or_on() {
 482   if (!FLAG_IS_DEFAULT(AOTConfiguration)) {
 483     vm_exit_during_initialization(err_msg("AOTConfiguration can only be used with when AOTMode is record or create (selected AOTMode = %s)",
 484                                           FLAG_IS_DEFAULT(AOTMode) ? "auto" : AOTMode));
 485   }
 486 
 487   UseSharedSpaces = true;
 488   if (FLAG_IS_DEFAULT(AOTMode) || (strcmp(AOTMode, "auto") == 0)) {
 489     RequireSharedSpaces = false;
 490   } else {
 491     assert(strcmp(AOTMode, "on") == 0, "already checked");
 492     RequireSharedSpaces = true;
 493   }
 494 }
 495 
 496 // %p substitution in AOTCache, AOTCacheOutput and AOTCacheConfiguration
 497 static void substitute_aot_filename(JVMFlagsEnum flag_enum) {
 498   JVMFlag* flag = JVMFlag::flag_from_enum(flag_enum);
 499   const char* filename = flag->read<const char*>();
 500   assert(filename != nullptr, "must not have default value");
 501 
 502   // For simplicity, we don't allow %p/%t to be specified twice, because make_log_name()
 503   // substitutes only the first occurrence. Otherwise, if we run with
 504   //     java -XX:AOTCacheOutput=%p%p.aot
 505  // it will end up with both the pid of the training process and the assembly process.
 506   const char* first_p = strstr(filename, "%p");
 507   if (first_p != nullptr && strstr(first_p + 2, "%p") != nullptr) {
 508     vm_exit_during_initialization(err_msg("%s cannot contain more than one %%p", flag->name()));
 509   }
 510   const char* first_t = strstr(filename, "%t");
 511   if (first_t != nullptr && strstr(first_t + 2, "%t") != nullptr) {
 512     vm_exit_during_initialization(err_msg("%s cannot contain more than one %%t", flag->name()));
 513   }
 514 
 515   // Note: with single-command training, %p will be the pid of the training process, not the
 516   // assembly process.
 517   const char* new_filename = make_log_name(filename, nullptr);
 518   if (strcmp(filename, new_filename) != 0) {
 519     JVMFlag::Error err = JVMFlagAccess::set_ccstr(flag, &new_filename, JVMFlagOrigin::ERGONOMIC);
 520     assert(err == JVMFlag::SUCCESS, "must never fail");
 521   }
 522   FREE_C_HEAP_ARRAY(char, new_filename);
 523 }
 524 
 525 void CDSConfig::check_aotmode_record() {
 526   bool has_config = !FLAG_IS_DEFAULT(AOTConfiguration);
 527   bool has_output = !FLAG_IS_DEFAULT(AOTCacheOutput);
 528 
 529   if (!has_output && !has_config) {
 530       vm_exit_during_initialization("At least one of AOTCacheOutput and AOTConfiguration must be specified when using -XX:AOTMode=record");
 531   }
 532 
 533   if (has_output) {
 534     _is_single_command_training = true;
 535     substitute_aot_filename(FLAG_MEMBER_ENUM(AOTCacheOutput));
 536     if (!has_config) {
 537       // Too early; can't use resource allocation yet.
 538       size_t len = strlen(AOTCacheOutput) + 10;
 539       char* temp = AllocateHeap(len, mtArguments);
 540       jio_snprintf(temp, len, "%s.config", AOTCacheOutput);
 541       FLAG_SET_ERGO(AOTConfiguration, temp);
 542       FreeHeap(temp);
 543       _has_temp_aot_config_file = true;
 544     }
 545   }
 546 
 547   if (!FLAG_IS_DEFAULT(AOTCache)) {
 548     vm_exit_during_initialization("AOTCache must not be specified when using -XX:AOTMode=record");
 549   }
 550 
 551   substitute_aot_filename(FLAG_MEMBER_ENUM(AOTConfiguration));
 552 
 553   UseSharedSpaces = false;
 554   RequireSharedSpaces = false;
 555   _is_dumping_static_archive = true;
 556   _is_dumping_preimage_static_archive = true;
 557 
 558   // At VM exit, the module graph may be contaminated with program states.
 559   // We will rebuild the module graph when dumping the CDS final image.
 560   disable_heap_dumping();
 561 }
 562 
 563 void CDSConfig::check_aotmode_create() {
 564   if (FLAG_IS_DEFAULT(AOTConfiguration)) {
 565     vm_exit_during_initialization("AOTConfiguration must be specified when using -XX:AOTMode=create");
 566   }
 567 
 568   bool has_cache = !FLAG_IS_DEFAULT(AOTCache);
 569   bool has_cache_output = !FLAG_IS_DEFAULT(AOTCacheOutput);
 570 
 571   assert(!(has_cache && has_cache_output), "already checked");
 572 
 573   if (!has_cache && !has_cache_output) {
 574     vm_exit_during_initialization("AOTCache or AOTCacheOutput must be specified when using -XX:AOTMode=create");
 575   }
 576 
 577   if (!has_cache) {
 578     precond(has_cache_output);
 579     FLAG_SET_ERGO(AOTCache, AOTCacheOutput);
 580   }
 581   // No need to check for (!has_cache_output), as we don't look at AOTCacheOutput after here.
 582 
 583   substitute_aot_filename(FLAG_MEMBER_ENUM(AOTCache));
 584 
 585   _is_dumping_final_static_archive = true;
 586   UseSharedSpaces = true;
 587   RequireSharedSpaces = true;
 588 
 589   if (!FileMapInfo::is_preimage_static_archive(AOTConfiguration)) {
 590     vm_exit_during_initialization("Must be a valid AOT configuration generated by the current JVM", AOTConfiguration);
 591   }
 592 
 593   CDSConfig::enable_dumping_static_archive();
 594 
 595   // We don't load any agents in the assembly phase, so we can ensure that the agents
 596   // cannot affect the contents of the AOT cache. E.g., we don't want the agents to
 597   // redefine any cached classes. We also don't want the agents to modify heap objects that
 598   // are cached.
 599   //
 600   // Since application is not executed in the assembly phase, there's no need to load
 601   // the agents anyway -- no one will notice that the agents are not loaded.
 602   log_info(aot)("Disabled all JVMTI agents during -XX:AOTMode=create");
 603   JvmtiAgentList::disable_agent_list();
 604 }
 605 
 606 void CDSConfig::ergo_init_aot_paths() {
 607   assert(_cds_ergo_initialize_started, "sanity");
 608   if (is_dumping_static_archive()) {
 609     if (is_dumping_preimage_static_archive()) {
 610       _output_archive_path = AOTConfiguration;
 611     } else {
 612       assert(is_dumping_final_static_archive(), "must be");
 613       _input_static_archive_path = AOTConfiguration;
 614       _output_archive_path = AOTCache;
 615     }
 616   } else if (is_using_archive()) {
 617     if (FLAG_IS_DEFAULT(AOTCache)) {
 618       // Only -XX:AOTMode={auto,on} is specified
 619       _input_static_archive_path = default_archive_path();
 620     } else {
 621       _input_static_archive_path = AOTCache;
 622     }
 623   }
 624 }
 625 
 626 bool CDSConfig::check_vm_args_consistency(bool patch_mod_javabase, bool mode_flag_cmd_line) {
 627   assert(!_cds_ergo_initialize_started, "This is called earlier than CDSConfig::ergo_initialize()");
 628 
 629   check_aot_flags();
 630 
 631   if (!FLAG_IS_DEFAULT(AOTMode)) {
 632     // Using any form of the new AOTMode switch enables enhanced optimizations.
 633     FLAG_SET_ERGO_IF_DEFAULT(AOTClassLinking, true);
 634   }
 635 
 636   setup_compiler_args();
 637 
 638   if (AOTClassLinking) {
 639     // If AOTClassLinking is specified, enable all AOT optimizations by default.
 640     FLAG_SET_ERGO_IF_DEFAULT(AOTInvokeDynamicLinking, true);
 641   } else {
 642     // AOTInvokeDynamicLinking depends on AOTClassLinking.
 643     FLAG_SET_ERGO(AOTInvokeDynamicLinking, false);
 644   }
 645 
 646   if (is_dumping_static_archive()) {
 647     if (is_dumping_preimage_static_archive()) {
 648       // Don't tweak execution mode during AOT training run
 649     } else if (is_dumping_final_static_archive()) {
 650       if (Arguments::mode() == Arguments::_comp) {
 651         // AOT assembly phase submits the non-blocking compilation requests
 652         // for methods collected during training run, then waits for all compilations
 653         // to complete. With -Xcomp, we block for each compilation request, which is
 654         // counter-productive. Switching back to mixed mode improves testing time
 655         // with AOT and -Xcomp.
 656         Arguments::set_mode_flags(Arguments::_mixed);
 657       }
 658     } else if (!mode_flag_cmd_line) {
 659       // By default, -Xshare:dump runs in interpreter-only mode, which is required for deterministic archive.
 660       //
 661       // If your classlist is large and you don't care about deterministic dumping, you can use
 662       // -Xshare:dump -Xmixed to improve dumping speed.
 663       Arguments::set_mode_flags(Arguments::_int);
 664     } else if (Arguments::mode() == Arguments::_comp) {
 665       // -Xcomp may use excessive CPU for the test tiers. Also, -Xshare:dump runs a small and fixed set of
 666       // Java code, so there's not much benefit in running -Xcomp.
 667       aot_log_info(aot)("reduced -Xcomp to -Xmixed for static dumping");
 668       Arguments::set_mode_flags(Arguments::_mixed);
 669     }
 670 
 671     // String deduplication may cause CDS to iterate the strings in different order from one
 672     // run to another which resulting in non-determinstic CDS archives.
 673     // Disable UseStringDeduplication while dumping CDS archive.
 674     UseStringDeduplication = false;
 675   }
 676 
 677   // RecordDynamicDumpInfo is not compatible with ArchiveClassesAtExit
 678   if (ArchiveClassesAtExit != nullptr && RecordDynamicDumpInfo) {
 679     jio_fprintf(defaultStream::output_stream(),
 680                 "-XX:+RecordDynamicDumpInfo cannot be used with -XX:ArchiveClassesAtExit.\n");
 681     return false;
 682   }
 683 
 684   if (ArchiveClassesAtExit == nullptr && !RecordDynamicDumpInfo) {
 685     disable_dumping_dynamic_archive();
 686   } else {
 687     enable_dumping_dynamic_archive(ArchiveClassesAtExit);
 688   }
 689 
 690   if (AutoCreateSharedArchive) {
 691     if (SharedArchiveFile == nullptr) {
 692       aot_log_warning(aot)("-XX:+AutoCreateSharedArchive requires -XX:SharedArchiveFile");
 693       return false;
 694     }
 695     if (ArchiveClassesAtExit != nullptr) {
 696       aot_log_warning(aot)("-XX:+AutoCreateSharedArchive does not work with ArchiveClassesAtExit");
 697       return false;
 698     }
 699   }
 700 
 701   if (is_using_archive() && patch_mod_javabase) {
 702     Arguments::no_shared_spaces("CDS is disabled when " JAVA_BASE_NAME " module is patched.");
 703   }
 704   if (is_using_archive() && has_unsupported_runtime_module_options()) {
 705     UseSharedSpaces = false;
 706   }
 707 
 708   if (is_dumping_archive()) {
 709     // Always verify non-system classes during CDS dump
 710     if (!BytecodeVerificationRemote) {
 711       BytecodeVerificationRemote = true;
 712       aot_log_info(aot)("All non-system classes will be verified (-Xverify:remote) during CDS dump time.");
 713     }
 714   }
 715 
 716   return true;
 717 }
 718 
 719 void CDSConfig::setup_compiler_args() {
 720   // AOT profiles and AOT-compiled code are supported only in the JEP 483 workflow.
 721   bool can_dump_profile_and_compiled_code = AOTClassLinking && new_aot_flags_used();
 722 
 723   if (is_dumping_preimage_static_archive() && can_dump_profile_and_compiled_code) {
 724     // JEP 483 workflow -- training
 725     FLAG_SET_ERGO_IF_DEFAULT(AOTRecordTraining, true);
 726     FLAG_SET_ERGO(AOTReplayTraining, false);
 727     AOTCodeCache::disable_caching(); // No AOT code generation during training run
 728   } else if (is_dumping_final_static_archive() && can_dump_profile_and_compiled_code) {
 729     // JEP 483 workflow -- assembly
 730     FLAG_SET_ERGO(AOTRecordTraining, false);
 731     FLAG_SET_ERGO_IF_DEFAULT(AOTReplayTraining, true);
 732     AOTCodeCache::enable_caching(); // Generate AOT code during assembly phase.
 733     disable_dumping_aot_code();     // Don't dump AOT code until metadata and heap are dumped.
 734   } else if (is_using_archive() && new_aot_flags_used()) {
 735     // JEP 483 workflow -- production
 736     FLAG_SET_ERGO(AOTRecordTraining, false);
 737     FLAG_SET_ERGO_IF_DEFAULT(AOTReplayTraining, true);
 738     AOTCodeCache::enable_caching();
 739   } else {
 740     FLAG_SET_ERGO(AOTReplayTraining, false);
 741     FLAG_SET_ERGO(AOTRecordTraining, false);
 742     AOTCodeCache::disable_caching();
 743   }
 744 }
 745 
 746 void CDSConfig::prepare_for_dumping() {
 747   assert(CDSConfig::is_dumping_archive(), "sanity");
 748 
 749   if (is_dumping_dynamic_archive() && AOTClassLinking) {
 750     if (FLAG_IS_CMDLINE(AOTClassLinking)) {
 751       log_warning(cds)("AOTClassLinking is not supported for dynamic CDS archive");
 752     }
 753     FLAG_SET_ERGO(AOTClassLinking, false);
 754   }
 755 
 756   if (is_dumping_dynamic_archive() && !is_using_archive()) {
 757     assert(!is_dumping_static_archive(), "cannot be dumping both static and dynamic archives");
 758 
 759     // This could happen if SharedArchiveFile has failed to load:
 760     // - -Xshare:off was specified
 761     // - SharedArchiveFile points to an non-existent file.
 762     // - SharedArchiveFile points to an archive that has failed CRC check
 763     // - SharedArchiveFile is not specified and the VM doesn't have a compatible default archive
 764 
 765 #define __THEMSG " is unsupported when base CDS archive is not loaded. Run with -Xlog:cds for more info."
 766     if (RecordDynamicDumpInfo) {
 767       aot_log_error(aot)("-XX:+RecordDynamicDumpInfo%s", __THEMSG);
 768       AOTMetaspace::unrecoverable_loading_error();
 769     } else {
 770       assert(ArchiveClassesAtExit != nullptr, "sanity");
 771       aot_log_warning(aot)("-XX:ArchiveClassesAtExit" __THEMSG);
 772     }
 773 #undef __THEMSG
 774     disable_dumping_dynamic_archive();
 775     return;
 776   }
 777 
 778   check_unsupported_dumping_module_options();
 779 }
 780 
 781 bool CDSConfig::is_dumping_classic_static_archive() {
 782   return _is_dumping_static_archive &&
 783     !is_dumping_preimage_static_archive() &&
 784     !is_dumping_final_static_archive();
 785 }
 786 
 787 bool CDSConfig::is_dumping_preimage_static_archive() {
 788   return _is_dumping_preimage_static_archive;
 789 }
 790 
 791 bool CDSConfig::is_dumping_final_static_archive() {
 792   return _is_dumping_final_static_archive;
 793 }
 794 
 795 void CDSConfig::enable_dumping_dynamic_archive(const char* output_path) {
 796   _is_dumping_dynamic_archive = true;
 797   if (output_path == nullptr) {
 798     // output_path can be null when the VM is started with -XX:+RecordDynamicDumpInfo
 799     // in anticipation of "jcmd VM.cds dynamic_dump", which will provide the actual
 800     // output path.
 801     _output_archive_path = nullptr;
 802   } else {
 803     _output_archive_path = os::strdup_check_oom(output_path, mtArguments);
 804   }
 805 }
 806 
 807 bool CDSConfig::allow_only_single_java_thread() {
 808   // See comments in JVM_StartThread()
 809   return is_dumping_classic_static_archive() || is_dumping_final_static_archive();
 810 }
 811 
 812 bool CDSConfig::is_using_archive() {
 813   return UseSharedSpaces;
 814 }
 815 
 816 bool CDSConfig::is_using_only_default_archive() {
 817   return is_using_archive() &&
 818          input_static_archive_path() != nullptr &&
 819          default_archive_path() != nullptr &&
 820          strcmp(input_static_archive_path(), default_archive_path()) == 0 &&
 821          input_dynamic_archive_path() == nullptr;
 822 }
 823 
 824 bool CDSConfig::is_logging_lambda_form_invokers() {
 825   return ClassListWriter::is_enabled() || is_dumping_dynamic_archive();
 826 }
 827 
 828 bool CDSConfig::is_dumping_regenerated_lambdaform_invokers() {
 829   if (is_dumping_final_static_archive()) {
 830     // No need to regenerate -- the lambda form invokers should have been regenerated
 831     // in the preimage archive (if allowed)
 832     return false;
 833   } else if (is_dumping_dynamic_archive() && is_using_aot_linked_classes()) {
 834     // The base archive has aot-linked classes that may have AOT-resolved CP references
 835     // that point to the lambda form invokers in the base archive. Such pointers will
 836     // be invalid if lambda form invokers are regenerated in the dynamic archive.
 837     return false;
 838   } else {
 839     return is_dumping_archive();
 840   }
 841 }
 842 
 843 void CDSConfig::stop_using_optimized_module_handling() {
 844   _is_using_optimized_module_handling = false;
 845   _is_dumping_full_module_graph = false; // This requires is_using_optimized_module_handling()
 846   _is_using_full_module_graph = false; // This requires is_using_optimized_module_handling()
 847 }
 848 
 849 
 850 CDSConfig::DumperThreadMark::DumperThreadMark(JavaThread* current) {
 851   assert(_dumper_thread == nullptr, "sanity");
 852   _dumper_thread = current;
 853 }
 854 
 855 CDSConfig::DumperThreadMark::~DumperThreadMark() {
 856   assert(_dumper_thread != nullptr, "sanity");
 857   _dumper_thread = nullptr;
 858 }
 859 
 860 bool CDSConfig::current_thread_is_vm_or_dumper() {
 861   Thread* t = Thread::current();
 862   return t->is_VM_thread() || t == _dumper_thread;
 863 }
 864 
 865 bool CDSConfig::current_thread_is_dumper() {
 866   return Thread::current() == _dumper_thread;
 867 }
 868 
 869 const char* CDSConfig::type_of_archive_being_loaded() {
 870   if (is_dumping_final_static_archive()) {
 871     return "AOT configuration file";
 872   } else if (new_aot_flags_used()) {
 873     return "AOT cache";
 874   } else {
 875     return "shared archive file";
 876   }
 877 }
 878 
 879 const char* CDSConfig::type_of_archive_being_written() {
 880   if (is_dumping_preimage_static_archive()) {
 881     return "AOT configuration file";
 882   } else if (new_aot_flags_used()) {
 883     return "AOT cache";
 884   } else {
 885     return "shared archive file";
 886   }
 887 }
 888 
 889 // If an incompatible VM options is found, return a text message that explains why
 890 static const char* check_options_incompatible_with_dumping_heap() {
 891 #if INCLUDE_CDS_JAVA_HEAP
 892   if (!UseCompressedClassPointers) {
 893     return "UseCompressedClassPointers must be true";
 894   }
 895 
 896   // Almost all GCs support heap region dump, except ZGC (so far).
 897   if (UseZGC) {
 898     return "ZGC is not supported";
 899   }
 900 
 901   return nullptr;
 902 #else
 903   return "JVM not configured for writing Java heap objects";
 904 #endif
 905 }
 906 
 907 void CDSConfig::log_reasons_for_not_dumping_heap() {
 908   const char* reason;
 909 
 910   assert(!is_dumping_heap(), "sanity");
 911 
 912   if (_disable_heap_dumping) {
 913     reason = "Programmatically disabled";
 914   } else {
 915     reason = check_options_incompatible_with_dumping_heap();
 916   }
 917 
 918   assert(reason != nullptr, "sanity");
 919   aot_log_info(aot)("Archived java heap is not supported: %s", reason);
 920 }
 921 
 922 // This is *Legacy* optimization for lambdas before JEP 483. May be removed in the future.
 923 bool CDSConfig::is_dumping_lambdas_in_legacy_mode() {
 924   return !is_dumping_method_handles();
 925 }
 926 
 927 bool CDSConfig::is_preserving_verification_constraints() {
 928   // Verification dependencies are classes used in assignability checks by the
 929   // bytecode verifier. In the following example, the verification dependencies
 930   // for X are A and B.
 931   //
 932   //     class X {
 933   //        A getA() { return new B(); }
 934   //     }
 935   //
 936   // With the AOT cache, we can ensure that all the verification dependencies
 937   // (A and B in the above example) are unconditionally loaded during the bootstrap
 938   // of the production run. This means that if a class was successfully verified
 939   // in the assembly phase, all of the verifier's assignability checks will remain
 940   // valid in the production run, so we don't need to verify aot-linked classes again.
 941 
 942   if (is_dumping_preimage_static_archive()) { // writing AOT config
 943     return AOTClassLinking;
 944   } else if (is_dumping_final_static_archive()) { // writing AOT cache
 945     return is_dumping_aot_linked_classes();
 946   } else {
 947     // For simplicity, we don't support this optimization with the old CDS workflow.
 948     return false;
 949   }
 950 }
 951 
 952 bool CDSConfig::is_old_class_for_verifier(const InstanceKlass* ik) {
 953   return ik->major_version() < 50 /*JAVA_6_VERSION*/;
 954 }
 955 
 956 #if INCLUDE_CDS_JAVA_HEAP
 957 bool CDSConfig::are_vm_options_incompatible_with_dumping_heap() {
 958   return check_options_incompatible_with_dumping_heap() != nullptr;
 959 }
 960 
 961 bool CDSConfig::is_dumping_heap() {
 962   if (!(is_dumping_classic_static_archive() || is_dumping_final_static_archive())
 963       || are_vm_options_incompatible_with_dumping_heap()
 964       || _disable_heap_dumping) {
 965     return false;
 966   }
 967   return true;
 968 }
 969 
 970 bool CDSConfig::is_loading_heap() {
 971   return ArchiveHeapLoader::is_in_use();
 972 }
 973 
 974 bool CDSConfig::is_using_full_module_graph() {
 975   if (ClassLoaderDataShared::is_full_module_graph_loaded()) {
 976     return true;
 977   }
 978 
 979   if (!_is_using_full_module_graph) {
 980     return false;
 981   }
 982 
 983   if (is_using_archive() && ArchiveHeapLoader::can_use()) {
 984     // Classes used by the archived full module graph are loaded in JVMTI early phase.
 985     assert(!(JvmtiExport::should_post_class_file_load_hook() && JvmtiExport::has_early_class_hook_env()),
 986            "CDS should be disabled if early class hooks are enabled");
 987     return true;
 988   } else {
 989     _is_using_full_module_graph = false;
 990     return false;
 991   }
 992 }
 993 
 994 void CDSConfig::stop_dumping_full_module_graph(const char* reason) {
 995   if (_is_dumping_full_module_graph) {
 996     _is_dumping_full_module_graph = false;
 997     if (reason != nullptr) {
 998       aot_log_info(aot)("full module graph cannot be dumped: %s", reason);
 999     }
1000   }
1001 }
1002 
1003 void CDSConfig::stop_using_full_module_graph(const char* reason) {
1004   assert(!ClassLoaderDataShared::is_full_module_graph_loaded(), "you call this function too late!");
1005   if (_is_using_full_module_graph) {
1006     _is_using_full_module_graph = false;
1007     if (reason != nullptr) {
1008       aot_log_info(aot)("full module graph cannot be loaded: %s", reason);
1009     }
1010   }
1011 }
1012 
1013 bool CDSConfig::is_dumping_aot_linked_classes() {
1014   if (is_dumping_classic_static_archive() || is_dumping_final_static_archive()) {
1015     // FMG is required to guarantee that all cached boot/platform/app classes
1016     // are visible in the production run, so they can be unconditionally
1017     // loaded during VM bootstrap.
1018     return is_dumping_full_module_graph() && AOTClassLinking;
1019   } else {
1020     return false;
1021   }
1022 }
1023 
1024 bool CDSConfig::is_using_aot_linked_classes() {
1025   // Make sure we have the exact same module graph as in the assembly phase, or else
1026   // some aot-linked classes may not be visible so cannot be loaded.
1027   return is_using_full_module_graph() && _has_aot_linked_classes;
1028 }
1029 
1030 void CDSConfig::set_has_aot_linked_classes(bool has_aot_linked_classes) {
1031   _has_aot_linked_classes |= has_aot_linked_classes;
1032 }
1033 
1034 bool CDSConfig::is_initing_classes_at_dump_time() {
1035   return is_dumping_heap() && is_dumping_aot_linked_classes();
1036 }
1037 
1038 bool CDSConfig::is_dumping_invokedynamic() {
1039   // Requires is_dumping_aot_linked_classes(). Otherwise the classes of some archived heap
1040   // objects used by the archive indy callsites may be replaced at runtime.
1041   return AOTInvokeDynamicLinking && is_dumping_aot_linked_classes() && is_dumping_heap();
1042 }
1043 
1044 // When we are dumping aot-linked classes and we are able to write archived heap objects, we automatically
1045 // enable the archiving of MethodHandles. This will in turn enable the archiving of MethodTypes and hidden
1046 // classes that are used in the implementation of MethodHandles.
1047 // Archived MethodHandles are required for higher-level optimizations such as AOT resolution of invokedynamic
1048 // and dynamic proxies.
1049 bool CDSConfig::is_dumping_method_handles() {
1050   return is_initing_classes_at_dump_time();
1051 }
1052 
1053 #endif // INCLUDE_CDS_JAVA_HEAP
1054 
1055 // AOT code generation and its archiving is disabled by default.
1056 // We enable it only in the final image dump after the metadata and heap are dumped.
1057 // This affects only JITed code because it may have embedded oops and metadata pointers
1058 // which AOT code encodes as offsets in final CDS archive regions.
1059 
1060 static bool _is_dumping_aot_code = false;
1061 
1062 bool CDSConfig::is_dumping_aot_code() {
1063   return _is_dumping_aot_code;
1064 }
1065 
1066 void CDSConfig::disable_dumping_aot_code() {
1067   _is_dumping_aot_code = false;
1068 }
1069 
1070 void CDSConfig::enable_dumping_aot_code() {
1071   _is_dumping_aot_code = true;
1072 }
1073 
1074 bool CDSConfig::is_dumping_adapters() {
1075   return (AOTAdapterCaching && is_dumping_final_static_archive());
1076 }