1 /* 2 * Copyright (c) 2016, 2017, 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 #include "precompiled.hpp" 25 26 #include "aot/aotCodeHeap.hpp" 27 #include "aot/aotLoader.hpp" 28 #include "classfile/javaAssertions.hpp" 29 #include "gc/shared/cardTable.hpp" 30 #include "gc/shared/cardTableModRefBS.hpp" 31 #include "gc/g1/heapRegion.hpp" 32 #include "gc/shared/gcLocker.hpp" 33 #include "interpreter/abstractInterpreter.hpp" 34 #include "jvmci/compilerRuntime.hpp" 35 #include "jvmci/jvmciRuntime.hpp" 36 #include "oops/method.hpp" 37 #include "runtime/os.hpp" 38 #include "runtime/sharedRuntime.hpp" 39 #include "runtime/vm_operations.hpp" 40 41 bool AOTLib::_narrow_oop_shift_initialized = false; 42 int AOTLib::_narrow_oop_shift = 0; 43 int AOTLib::_narrow_klass_shift = 0; 44 45 address AOTLib::load_symbol(const char *name) { 46 address symbol = (address) os::dll_lookup(_dl_handle, name); 47 if (symbol == NULL) { 48 tty->print_cr("Shared file %s error: missing %s", _name, name); 49 vm_exit(1); 50 } 51 return symbol; 52 } 53 54 Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) { 55 AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name); 56 Klass* k = (Klass*)_metaspace_got[klass_data->_got_index]; 57 if (k == NULL) { 58 Thread* thread = Thread::current(); 59 k = lookup_klass(klass_name, klass_len, method, thread); 60 // Note, exceptions are cleared. 61 if (k == NULL) { 62 fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name); 63 vm_exit(1); 64 } 65 _metaspace_got[klass_data->_got_index] = k; 66 } 67 return k; 68 } 69 70 Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) { 71 ResourceMark rm(thread); 72 assert(method != NULL, "incorrect call parameter"); 73 methodHandle caller(thread, (Method*)method); 74 75 // Use class loader of aot method. 76 Handle loader(thread, caller->method_holder()->class_loader()); 77 Handle protection_domain(thread, caller->method_holder()->protection_domain()); 78 79 // Ignore wrapping L and ; 80 if (name[0] == 'L') { 81 assert(len > 2, "small name %s", name); 82 name++; 83 len -= 2; 84 } 85 TempNewSymbol sym = SymbolTable::probe(name, len); 86 if (sym == NULL) { 87 log_debug(aot, class, resolve)("Probe failed for AOT class %s", name); 88 return NULL; 89 } 90 Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread); 91 assert(!thread->has_pending_exception(), "should not throw"); 92 93 if (k != NULL) { 94 log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name()); 95 } 96 return k; 97 } 98 99 void AOTLib::handle_config_error(const char* format, ...) { 100 if (PrintAOT) { 101 va_list ap; 102 va_start(ap, format); 103 tty->vprint_cr(format, ap); 104 va_end(ap); 105 } 106 if (UseAOTStrictLoading) { 107 vm_exit(1); 108 } 109 _valid = false; 110 } 111 112 void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) { 113 if (_valid && aot_flag != flag) { 114 handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false")); 115 } 116 } 117 118 void AOTLib::verify_flag(int aot_flag, int flag, const char* name) { 119 if (_valid && aot_flag != flag) { 120 handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag); 121 } 122 } 123 124 void AOTLib::verify_config() { 125 GrowableArray<AOTLib*>* libraries = AOTLoader::libraries(); 126 for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) { 127 if ((*lib)->_config == _config) { 128 handle_config_error("AOT library %s already loaded.", (*lib)->_name); 129 return; 130 } 131 } 132 133 if (_header->_version != AOTHeader::AOT_SHARED_VERSION) { 134 handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION); 135 return; 136 } 137 138 const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2; 139 if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) { 140 handle_config_error("JVM version '%s' recorded in the shared file %s does not match current version '%s'", aot_jvm_version, _name, VM_Version::jre_release_version()); 141 return; 142 } 143 144 // Debug VM has different layout of runtime and metadata structures 145 #ifdef ASSERT 146 verify_flag(_config->_debug_VM, true, "Debug VM version"); 147 #else 148 verify_flag(!(_config->_debug_VM), true, "Product VM version"); 149 #endif 150 // Check configuration size 151 verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size"); 152 153 // Check flags 154 verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops"); 155 verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers"); 156 verify_flag(_config->_useG1GC, UseG1GC, "UseG1GC"); 157 verify_flag(_config->_useCMSGC, UseConcMarkSweepGC, "UseConcMarkSweepGC"); 158 verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB"); 159 verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking"); 160 verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes"); 161 verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth"); 162 verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle"); 163 verify_flag(_config->_compactFields, CompactFields, "CompactFields"); 164 verify_flag(_config->_enableContended, EnableContended, "EnableContended"); 165 verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended"); 166 167 if (!TieredCompilation && _config->_tieredAOT) { 168 handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name); 169 } 170 171 // Shifts are static values which initialized by 0 until java heap initialization. 172 // AOT libs are loaded before heap initialized so shift values are not set. 173 // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded. 174 // Set shifts value based on first AOT library config. 175 if (UseCompressedOops && _valid) { 176 if (!_narrow_oop_shift_initialized) { 177 _narrow_oop_shift = _config->_narrowOopShift; 178 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 179 _narrow_klass_shift = _config->_narrowKlassShift; 180 } 181 _narrow_oop_shift_initialized = true; 182 } else { 183 verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift"); 184 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 185 verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift"); 186 } 187 } 188 } 189 } 190 191 AOTLib::~AOTLib() { 192 free((void*) _name); 193 } 194 195 AOTCodeHeap::~AOTCodeHeap() { 196 if (_classes != NULL) { 197 FREE_C_HEAP_ARRAY(AOTClass, _classes); 198 } 199 if (_code_to_aot != NULL) { 200 FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot); 201 } 202 } 203 204 AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) { 205 _name = (const char*) strdup(name); 206 207 // Verify that VM runs with the same parameters as AOT tool. 208 _config = (AOTConfiguration*) load_symbol("JVM.config"); 209 _header = (AOTHeader*) load_symbol("JVM.header"); 210 211 verify_config(); 212 213 if (!_valid && PrintAOT) { 214 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 215 tty->print_cr("%4d skipped %s aot library", _dso_id, _name); 216 } 217 } 218 219 AOTCodeHeap::AOTCodeHeap(AOTLib* lib) : 220 CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) { 221 assert(_lib->is_valid(), "invalid library"); 222 223 _lib_symbols_initialized = false; 224 _aot_id = 0; 225 226 _class_count = _lib->header()->_class_count; 227 _method_count = _lib->header()->_method_count; 228 229 // Collect metaspace info: names -> address in .got section 230 _metaspace_names = (const char*) _lib->load_symbol("JVM.meta.names"); 231 _method_metadata = (address) _lib->load_symbol("JVM.meth.metadata"); 232 _methods_offsets = (address) _lib->load_symbol("JVM.methods.offsets"); 233 _klasses_offsets = (address) _lib->load_symbol("JVM.kls.offsets"); 234 _dependencies = (address) _lib->load_symbol("JVM.kls.dependencies"); 235 _code_space = (address) _lib->load_symbol("JVM.text"); 236 237 // First cell is number of elements. 238 _metaspace_got = (Metadata**) _lib->load_symbol("JVM.meta.got"); 239 _metaspace_got_size = _lib->header()->_metaspace_got_size; 240 241 _metadata_got = (Metadata**) _lib->load_symbol("JVM.metadata.got"); 242 _metadata_got_size = _lib->header()->_metadata_got_size; 243 244 _oop_got = (oop*) _lib->load_symbol("JVM.oop.got"); 245 _oop_got_size = _lib->header()->_oop_got_size; 246 247 // Collect stubs info 248 _stubs_offsets = (int*) _lib->load_symbol("JVM.stubs.offsets"); 249 250 // code segments table 251 _code_segments = (address) _lib->load_symbol("JVM.code.segments"); 252 253 // method state 254 _method_state = (jlong*) _lib->load_symbol("JVM.meth.state"); 255 256 // Create a table for mapping classes 257 _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode); 258 memset(_classes, 0, _class_count * sizeof(AOTClass)); 259 260 // Create table for searching AOTCompiledMethod based on pc. 261 _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode); 262 memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod)); 263 264 _low_boundary = _code_space; 265 _memory.set_low_boundary((char *)_code_space); 266 _memory.set_high_boundary((char *)_code_space); 267 _memory.set_low((char *)_code_space); 268 _memory.set_high((char *)_code_space); 269 270 _segmap.set_low_boundary((char *)_code_segments); 271 _segmap.set_low((char *)_code_segments); 272 273 _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize); 274 275 // Register aot stubs 276 register_stubs(); 277 278 if (PrintAOT || (PrintCompilation && PrintAOT)) { 279 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 280 tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name()); 281 } 282 } 283 284 void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) { 285 // The method may be explicitly excluded by the user. 286 // Or Interpreter uses an intrinsic for this method. 287 if (CompilerOracle::should_exclude(mh) || !AbstractInterpreter::can_be_compiled(mh)) { 288 return; 289 } 290 291 address code = method_data->_code; 292 const char* name = method_data->_name; 293 aot_metadata* meta = method_data->_meta; 294 295 if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) { 296 // When the AOT compiler compiles something big we fail to generate metadata 297 // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end. 298 // In all successful cases we always have 2 entries of scope pcs. 299 log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string()); 300 _code_to_aot[code_id]._state = invalid; 301 return; 302 } 303 304 jlong* state_adr = &_method_state[code_id]; 305 address metadata_table = method_data->_metadata_table; 306 int metadata_size = method_data->_metadata_size; 307 assert(code_id < _method_count, "sanity"); 308 _aot_id++; 309 310 #ifdef ASSERT 311 if (_aot_id > CIStop || _aot_id < CIStart) { 312 // Skip compilation 313 return; 314 } 315 #endif 316 // Check one more time. 317 if (_code_to_aot[code_id]._state == invalid) { 318 return; 319 } 320 AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id); 321 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 322 _code_to_aot[code_id]._aot = aot; // Should set this first 323 if (Atomic::cmpxchg(in_use, (jint*)&_code_to_aot[code_id]._state, not_set) != not_set) { 324 _code_to_aot[code_id]._aot = NULL; // Clean 325 } else { // success 326 // Publish method 327 #ifdef TIERED 328 mh->set_aot_code(aot); 329 #endif 330 Method::set_code(mh, aot); 331 if (PrintAOT || (PrintCompilation && PrintAOT)) { 332 aot->print_on(tty, NULL); 333 } 334 // Publish oop only after we are visible to CompiledMethodIterator 335 aot->set_oop(mh()->method_holder()->klass_holder()); 336 } 337 } 338 339 void AOTCodeHeap::link_primitive_array_klasses() { 340 ResourceMark rm; 341 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) { 342 BasicType t = (BasicType)i; 343 if (is_java_primitive(t)) { 344 const Klass* arr_klass = Universe::typeArrayKlassObj(t); 345 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name()); 346 if (klass_data != NULL) { 347 // Set both GOT cells, resolved and initialized klass pointers. 348 // _got_index points to second cell - resolved klass pointer. 349 _metaspace_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized 350 _metaspace_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved 351 if (PrintAOT) { 352 tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name()); 353 } 354 } 355 } 356 } 357 } 358 359 void AOTCodeHeap::register_stubs() { 360 int stubs_count = _stubs_offsets[0]; // contains number 361 _stubs_offsets++; 362 AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets; 363 for (int i = 0; i < stubs_count; ++i) { 364 const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset; 365 address entry = _code_space + stub_offsets[i]._code_offset; 366 aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset); 367 address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset; 368 int metadata_size = stub_offsets[i]._metadata_got_size; 369 int code_id = stub_offsets[i]._code_id; 370 assert(code_id < _method_count, "sanity"); 371 jlong* state_adr = &_method_state[code_id]; 372 int len = build_u2_from((address)stub_name); 373 stub_name += 2; 374 char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode); 375 if (full_name == NULL) { // No memory? 376 break; 377 } 378 memcpy(full_name, "AOT ", 4); 379 memcpy(full_name+4, stub_name, len); 380 full_name[len+4] = 0; 381 guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name); 382 AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i); 383 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 384 _code_to_aot[code_id]._aot = aot; 385 if (Atomic::cmpxchg(in_use, (jint*)&_code_to_aot[code_id]._state, not_set) != not_set) { 386 fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state); 387 } 388 // Adjust code buffer boundaries only for stubs because they are last in the buffer. 389 adjust_boundaries(aot); 390 if (PrintAOT && Verbose) { 391 aot->print_on(tty, NULL); 392 } 393 } 394 } 395 396 #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \ 397 { \ 398 AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \ 399 /* Check for a lookup error */ \ 400 guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \ 401 *adr = (AOTSYMTYPE) VMSYMVAL; \ 402 } 403 404 void AOTCodeHeap::link_graal_runtime_symbols() { 405 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter); 406 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit); 407 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object); 408 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf); 409 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive); 410 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance); 411 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array); 412 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array); 413 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array); 414 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object); 415 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre); 416 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code); 417 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post); 418 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance); 419 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_thread_is_interrupted", address, JVMCIRuntime::thread_is_interrupted); 420 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc); 421 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int); 422 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception); 423 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception); 424 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception); 425 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message); 426 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error); 427 } 428 429 void AOTCodeHeap::link_shared_runtime_symbols() { 430 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub()); 431 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub()); 432 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub()); 433 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack()); 434 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap()); 435 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub()); 436 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub()); 437 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address); 438 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer); 439 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end); 440 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol); 441 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol); 442 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters); 443 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol); 444 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event); 445 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event); 446 447 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow); 448 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp); 449 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos); 450 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin); 451 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan); 452 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog); 453 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10); 454 } 455 456 void AOTCodeHeap::link_stub_routines_symbols() { 457 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy); 458 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy); 459 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy); 460 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy); 461 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy); 462 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit); 463 464 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy); 465 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy); 466 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy); 467 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy); 468 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy); 469 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit); 470 471 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy); 472 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy); 473 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy); 474 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy); 475 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy); 476 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit); 477 478 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy); 479 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy); 480 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy); 481 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy); 482 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy); 483 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit); 484 485 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy); 486 487 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock); 488 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock); 489 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt); 490 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt); 491 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32); 492 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr); 493 494 495 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress); 496 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB); 497 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress); 498 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB); 499 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress); 500 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB); 501 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen); 502 503 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt); 504 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks); 505 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr); 506 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C); 507 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32); 508 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen); 509 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd); 510 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply); 511 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare); 512 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch); 513 514 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry); 515 516 } 517 518 void AOTCodeHeap::link_os_symbols() { 519 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis); 520 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos); 521 } 522 523 /* 524 * Link any global symbols in precompiled DSO with dlopen() _dl_handle 525 * dso_handle. 526 */ 527 528 void AOTCodeHeap::link_global_lib_symbols() { 529 if (!_lib_symbols_initialized) { 530 _lib_symbols_initialized = true; 531 532 CollectedHeap* heap = Universe::heap(); 533 CardTableModRefBS* ct = (CardTableModRefBS*)(heap->barrier_set()); 534 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, ct->card_table()->byte_map_base()); 535 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL)); 536 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL)); 537 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page()); 538 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, Universe::narrow_klass_base()); 539 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, Universe::narrow_oop_base()); 540 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes); 541 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc()); 542 link_shared_runtime_symbols(); 543 link_stub_routines_symbols(); 544 link_os_symbols(); 545 link_graal_runtime_symbols(); 546 547 // Link primitive array klasses. 548 link_primitive_array_klasses(); 549 } 550 } 551 552 #ifndef PRODUCT 553 int AOTCodeHeap::klasses_seen = 0; 554 int AOTCodeHeap::aot_klasses_found = 0; 555 int AOTCodeHeap::aot_klasses_fp_miss = 0; 556 int AOTCodeHeap::aot_klasses_cl_miss = 0; 557 int AOTCodeHeap::aot_methods_found = 0; 558 559 void AOTCodeHeap::print_statistics() { 560 tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found); 561 tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss); 562 } 563 #endif 564 565 Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) { 566 int method_name_len = build_u2_from((address)method_name); 567 method_name += 2; 568 const char* signature_name = method_name + method_name_len; 569 int signature_name_len = build_u2_from((address)signature_name); 570 signature_name += 2; 571 // The class should have been loaded so the method and signature should already be 572 // in the symbol table. If they're not there, the method doesn't exist. 573 TempNewSymbol name = SymbolTable::probe(method_name, method_name_len); 574 TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len); 575 576 Method* m; 577 if (name == NULL || signature == NULL) { 578 m = NULL; 579 } else if (name == vmSymbols::object_initializer_name() || 580 name == vmSymbols::class_initializer_name()) { 581 // Never search superclasses for constructors 582 if (klass->is_instance_klass()) { 583 m = InstanceKlass::cast(klass)->find_method(name, signature); 584 } else { 585 m = NULL; 586 } 587 } else { 588 m = klass->lookup_method(name, signature); 589 if (m == NULL && klass->is_instance_klass()) { 590 m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature); 591 } 592 } 593 if (m == NULL) { 594 // Fatal error because we assume classes and methods should not be changed since aot compilation. 595 const char* klass_name = klass->external_name(); 596 int klass_len = (int)strlen(klass_name); 597 char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1); 598 memcpy(meta_name, klass_name, klass_len); 599 meta_name[klass_len] = '.'; 600 memcpy(&meta_name[klass_len + 1], method_name, method_name_len); 601 memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len); 602 meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0'; 603 Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name); 604 java_lang_Throwable::print(exception(), tty); 605 tty->cr(); 606 java_lang_Throwable::print_stack_trace(exception, tty); 607 tty->cr(); 608 fatal("Failed to find method '%s'", meta_name); 609 } 610 NOT_PRODUCT( aot_methods_found++; ) 611 return m; 612 } 613 614 AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) { 615 ResourceMark rm; 616 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), ik->signature_name()); 617 return klass_data; 618 } 619 620 bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) { 621 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); 622 AOTKlassData* klass_data = find_klass(dependee_ik); 623 if (klass_data == NULL) { 624 return false; // no AOT records for this class - no dependencies 625 } 626 if (!dependee_ik->has_passed_fingerprint_check()) { 627 return false; // different class 628 } 629 630 int methods_offset = klass_data->_dependent_methods_offset; 631 if (methods_offset >= 0) { 632 address methods_cnt_adr = _dependencies + methods_offset; 633 int methods_cnt = *(int*)methods_cnt_adr; 634 int* indexes = (int*)(methods_cnt_adr + 4); 635 for (int i = 0; i < methods_cnt; ++i) { 636 int code_id = indexes[i]; 637 if (_code_to_aot[code_id]._aot == aot) { 638 return true; // found dependent method 639 } 640 } 641 } 642 return false; 643 } 644 645 void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) { 646 // Make dependent methods non_entrant forever. 647 int methods_offset = klass_data->_dependent_methods_offset; 648 if (methods_offset >= 0) { 649 int marked = 0; 650 address methods_cnt_adr = _dependencies + methods_offset; 651 int methods_cnt = *(int*)methods_cnt_adr; 652 int* indexes = (int*)(methods_cnt_adr + 4); 653 for (int i = 0; i < methods_cnt; ++i) { 654 int code_id = indexes[i]; 655 // Invalidate aot code. 656 if (Atomic::cmpxchg(invalid, (jint*)&_code_to_aot[code_id]._state, not_set) != not_set) { 657 if (_code_to_aot[code_id]._state == in_use) { 658 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot; 659 assert(aot != NULL, "aot should be set"); 660 if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs. 661 aot->mark_for_deoptimization(false); 662 marked++; 663 } 664 } 665 } 666 } 667 if (marked > 0) { 668 VM_Deoptimize op; 669 VMThread::execute(&op); 670 } 671 } 672 } 673 674 bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) { 675 ResourceMark rm; 676 677 NOT_PRODUCT( klasses_seen++; ) 678 679 AOTKlassData* klass_data = find_klass(ik); 680 if (klass_data == NULL) { 681 return false; 682 } 683 684 if (!ik->has_passed_fingerprint_check()) { 685 NOT_PRODUCT( aot_klasses_fp_miss++; ) 686 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 687 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 688 _lib->name(), p2i(thread)); 689 sweep_dependent_methods(klass_data); 690 return false; 691 } 692 693 if (ik->has_been_redefined()) { 694 log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT, 695 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 696 _lib->name(), p2i(thread)); 697 sweep_dependent_methods(klass_data); 698 return false; 699 } 700 701 assert(klass_data->_class_id < _class_count, "invalid class id"); 702 AOTClass* aot_class = &_classes[klass_data->_class_id]; 703 if (aot_class->_classloader != NULL && aot_class->_classloader != ik->class_loader_data()) { 704 log_trace(aot, class, load)("class %s in %s already loaded for classloader %p vs %p tid=" INTPTR_FORMAT, 705 ik->internal_name(), _lib->name(), aot_class->_classloader, ik->class_loader_data(), p2i(thread)); 706 NOT_PRODUCT( aot_klasses_cl_miss++; ) 707 return false; 708 } 709 710 if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) { 711 log_trace(aot, class, load)("class %s in %s does not have java assertions in compiled code, but assertions are enabled for this execution.", ik->internal_name(), _lib->name()); 712 sweep_dependent_methods(klass_data); 713 return false; 714 } 715 716 NOT_PRODUCT( aot_klasses_found++; ) 717 718 log_trace(aot, class, load)("found %s in %s for classloader %p tid=" INTPTR_FORMAT, ik->internal_name(), _lib->name(), ik->class_loader_data(), p2i(thread)); 719 720 aot_class->_classloader = ik->class_loader_data(); 721 // Set klass's Resolve (second) got cell. 722 _metaspace_got[klass_data->_got_index] = ik; 723 724 // Initialize global symbols of the DSO to the corresponding VM symbol values. 725 link_global_lib_symbols(); 726 727 int methods_offset = klass_data->_compiled_methods_offset; 728 if (methods_offset >= 0) { 729 address methods_cnt_adr = _methods_offsets + methods_offset; 730 int methods_cnt = *(int*)methods_cnt_adr; 731 // Collect data about compiled methods 732 AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt); 733 AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4); 734 for (int i = 0; i < methods_cnt; ++i) { 735 AOTMethodOffsets* method_offsets = &methods_offsets[i]; 736 int code_id = method_offsets->_code_id; 737 if (_code_to_aot[code_id]._state == invalid) { 738 continue; // skip AOT methods slots which have been invalidated 739 } 740 AOTMethodData* method_data = &methods_data[i]; 741 const char* aot_name = _metaspace_names + method_offsets->_name_offset; 742 method_data->_name = aot_name; 743 method_data->_code = _code_space + method_offsets->_code_offset; 744 method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset); 745 method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset; 746 method_data->_metadata_size = method_offsets->_metadata_got_size; 747 // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V" 748 int klass_len = build_u2_from((address)aot_name); 749 const char* method_name = aot_name + 2 + klass_len; 750 Method* m = AOTCodeHeap::find_method(ik, thread, method_name); 751 methodHandle mh(thread, m); 752 if (mh->code() != NULL) { // Does it have already compiled code? 753 continue; // Don't overwrite 754 } 755 publish_aot(mh, method_data, code_id); 756 } 757 } 758 return true; 759 } 760 761 AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const { 762 for (int index = start; index < _method_count; index++) { 763 if (_code_to_aot[index]._state != in_use) { 764 continue; // Skip uninitialized entries. 765 } 766 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 767 return aot; 768 } 769 return NULL; 770 } 771 772 void* AOTCodeHeap::first() const { 773 return next_in_use_at(0); 774 } 775 776 void* AOTCodeHeap::next(void* p) const { 777 AOTCompiledMethod *aot = (AOTCompiledMethod *)p; 778 int next_index = aot->method_index() + 1; 779 assert(next_index <= _method_count, ""); 780 if (next_index == _method_count) { 781 return NULL; 782 } 783 return next_in_use_at(next_index); 784 } 785 786 void* AOTCodeHeap::find_start(void* p) const { 787 if (!contains(p)) { 788 return NULL; 789 } 790 size_t offset = pointer_delta(p, low_boundary(), 1); 791 // Use segments table 792 size_t seg_idx = offset / _lib->config()->_codeSegmentSize; 793 if ((int)(_code_segments[seg_idx]) == 0xff) { 794 return NULL; 795 } 796 while (_code_segments[seg_idx] > 0) { 797 seg_idx -= (int)_code_segments[seg_idx]; 798 } 799 int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize; 800 int aot_index = *(int*)(_code_space + code_offset); 801 AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot; 802 assert(aot != NULL, "should find registered aot method"); 803 return aot; 804 } 805 806 AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const { 807 assert(contains(p), "should be here"); 808 return (AOTCompiledMethod *)find_start(p); 809 } 810 811 CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const { 812 return (CodeBlob*)AOTCodeHeap::find_start(start); 813 } 814 815 void AOTCodeHeap::oops_do(OopClosure* f) { 816 for (int i = 0; i < _oop_got_size; i++) { 817 oop* p = &_oop_got[i]; 818 if (*p == NULL) continue; // skip non-oops 819 f->do_oop(p); 820 } 821 for (int index = 0; index < _method_count; index++) { 822 if (_code_to_aot[index]._state != in_use) { 823 continue; // Skip uninitialized entries. 824 } 825 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 826 aot->do_oops(f); 827 } 828 } 829 830 // Scan only metaspace_got cells which should have only Klass*, 831 // metadata_got cells are scanned only for alive AOT methods 832 // by AOTCompiledMethod::metadata_do(). 833 void AOTCodeHeap::got_metadata_do(void f(Metadata*)) { 834 for (int i = 1; i < _metaspace_got_size; i++) { 835 Metadata** p = &_metaspace_got[i]; 836 Metadata* md = *p; 837 if (md == NULL) continue; // skip non-oops 838 if (Metaspace::contains(md)) { 839 f(md); 840 } else { 841 intptr_t meta = (intptr_t)md; 842 fatal("Invalid value in _metaspace_got[%d] = " INTPTR_FORMAT, i, meta); 843 } 844 } 845 } 846 847 void AOTCodeHeap::cleanup_inline_caches() { 848 for (int index = 0; index < _method_count; index++) { 849 if (_code_to_aot[index]._state != in_use) { 850 continue; // Skip uninitialized entries. 851 } 852 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 853 aot->cleanup_inline_caches(); 854 } 855 } 856 857 #ifdef ASSERT 858 int AOTCodeHeap::verify_icholder_relocations() { 859 int count = 0; 860 for (int index = 0; index < _method_count; index++) { 861 if (_code_to_aot[index]._state != in_use) { 862 continue; // Skip uninitialized entries. 863 } 864 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 865 count += aot->verify_icholder_relocations(); 866 } 867 return count; 868 } 869 #endif 870 871 void AOTCodeHeap::flush_evol_dependents_on(InstanceKlass* dependee) { 872 for (int index = 0; index < _method_count; index++) { 873 if (_code_to_aot[index]._state != in_use) { 874 continue; // Skip uninitialized entries. 875 } 876 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 877 aot->flush_evol_dependents_on(dependee); 878 } 879 } 880 881 void AOTCodeHeap::metadata_do(void f(Metadata*)) { 882 for (int index = 0; index < _method_count; index++) { 883 if (_code_to_aot[index]._state != in_use) { 884 continue; // Skip uninitialized entries. 885 } 886 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 887 if (aot->_is_alive()) { 888 aot->metadata_do(f); 889 } 890 } 891 // Scan metaspace_got cells. 892 got_metadata_do(f); 893 }