1 /* 2 * Copyright (c) 2016, 2019, 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 "ci/ciUtilities.inline.hpp" 29 #include "classfile/javaAssertions.hpp" 30 #include "gc/shared/cardTable.hpp" 31 #include "gc/shared/cardTableBarrierSet.hpp" 32 #include "gc/shared/gcConfig.hpp" 33 #include "gc/g1/heapRegion.hpp" 34 #include "interpreter/abstractInterpreter.hpp" 35 #include "jvmci/compilerRuntime.hpp" 36 #include "jvmci/jvmciRuntime.hpp" 37 #include "logging/log.hpp" 38 #include "memory/allocation.inline.hpp" 39 #include "memory/universe.hpp" 40 #include "oops/compressedOops.hpp" 41 #include "oops/klass.inline.hpp" 42 #include "oops/method.inline.hpp" 43 #include "runtime/deoptimization.hpp" 44 #include "runtime/handles.inline.hpp" 45 #include "runtime/os.hpp" 46 #include "runtime/safepointVerifiers.hpp" 47 #include "runtime/sharedRuntime.hpp" 48 #include "runtime/vmOperations.hpp" 49 #include "utilities/sizes.hpp" 50 51 bool AOTLib::_narrow_oop_shift_initialized = false; 52 int AOTLib::_narrow_oop_shift = 0; 53 int AOTLib::_narrow_klass_shift = 0; 54 55 address AOTLib::load_symbol(const char *name) { 56 address symbol = (address) os::dll_lookup(_dl_handle, name); 57 if (symbol == NULL) { 58 tty->print_cr("Shared file %s error: missing %s", _name, name); 59 vm_exit(1); 60 } 61 return symbol; 62 } 63 64 Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) { 65 AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name); 66 Klass* k = (Klass*)_klasses_got[klass_data->_got_index]; 67 if (k == NULL) { 68 Thread* thread = Thread::current(); 69 k = lookup_klass(klass_name, klass_len, method, thread); 70 // Note, exceptions are cleared. 71 if (k == NULL) { 72 fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name); 73 vm_exit(1); 74 } 75 // Patch now to avoid extra runtime lookup 76 _klasses_got[klass_data->_got_index] = k; 77 if (k->is_instance_klass()) { 78 InstanceKlass* ik = InstanceKlass::cast(k); 79 if (ik->is_initialized()) { 80 _klasses_got[klass_data->_got_index - 1] = ik; 81 } 82 } 83 } 84 return k; 85 } 86 87 Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) { 88 ResourceMark rm(thread); 89 assert(method != NULL, "incorrect call parameter"); 90 methodHandle caller(thread, (Method*)method); 91 92 // Use class loader of aot method. 93 Handle loader(thread, caller->method_holder()->class_loader()); 94 Handle protection_domain(thread, caller->method_holder()->protection_domain()); 95 96 // Ignore wrapping L and ; 97 if (name[0] == JVM_SIGNATURE_CLASS) { 98 assert(len > 2, "small name %s", name); 99 name++; 100 len -= 2; 101 } 102 TempNewSymbol sym = SymbolTable::probe(name, len); 103 if (sym == NULL) { 104 log_debug(aot, class, resolve)("Probe failed for AOT class %s", name); 105 return NULL; 106 } 107 Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread); 108 assert(!thread->has_pending_exception(), "should not throw"); 109 110 if (k != NULL) { 111 log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name()); 112 } 113 return k; 114 } 115 116 void AOTLib::handle_config_error(const char* format, ...) { 117 if (PrintAOT) { 118 va_list ap; 119 va_start(ap, format); 120 tty->vprint_cr(format, ap); 121 va_end(ap); 122 } 123 if (UseAOTStrictLoading) { 124 vm_exit(1); 125 } 126 _valid = false; 127 } 128 129 void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) { 130 if (_valid && aot_flag != flag) { 131 handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false")); 132 } 133 } 134 135 void AOTLib::verify_flag(int aot_flag, int flag, const char* name) { 136 if (_valid && aot_flag != flag) { 137 handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag); 138 } 139 } 140 141 void AOTLib::verify_config() { 142 GrowableArray<AOTLib*>* libraries = AOTLoader::libraries(); 143 for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) { 144 if ((*lib)->_config == _config) { 145 handle_config_error("AOT library %s already loaded.", (*lib)->_name); 146 return; 147 } 148 } 149 150 if (_header->_version != AOTHeader::AOT_SHARED_VERSION) { 151 handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION); 152 return; 153 } 154 155 const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2; 156 if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) { 157 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()); 158 return; 159 } 160 161 // Debug VM has different layout of runtime and metadata structures 162 #ifdef ASSERT 163 verify_flag(_config->_debug_VM, true, "Debug VM version"); 164 #else 165 verify_flag(!(_config->_debug_VM), true, "Product VM version"); 166 #endif 167 // Check configuration size 168 verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size"); 169 170 // Check GC 171 CollectedHeap::Name gc = (CollectedHeap::Name)_config->_gc; 172 if (_valid && !GCConfig::is_gc_selected(gc)) { 173 handle_config_error("Shared file %s error: used '%s' is different from current '%s'", _name, GCConfig::hs_err_name(gc), GCConfig::hs_err_name()); 174 } 175 176 // Check flags 177 verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops"); 178 verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers"); 179 verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB"); 180 verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking"); 181 verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes"); 182 verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth"); 183 verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle"); 184 verify_flag(_config->_compactFields, CompactFields, "CompactFields"); 185 verify_flag(_config->_enableContended, EnableContended, "EnableContended"); 186 verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended"); 187 verify_flag(_config->_threadLocalHandshakes, ThreadLocalHandshakes, "ThreadLocalHandshakes"); 188 189 if (!TieredCompilation && _config->_tieredAOT) { 190 handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name); 191 } 192 193 // Shifts are static values which initialized by 0 until java heap initialization. 194 // AOT libs are loaded before heap initialized so shift values are not set. 195 // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded. 196 // Set shifts value based on first AOT library config. 197 if (UseCompressedOops && _valid) { 198 if (!_narrow_oop_shift_initialized) { 199 _narrow_oop_shift = _config->_narrowOopShift; 200 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 201 _narrow_klass_shift = _config->_narrowKlassShift; 202 } 203 _narrow_oop_shift_initialized = true; 204 } else { 205 verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift"); 206 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 207 verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift"); 208 } 209 } 210 } 211 } 212 213 AOTLib::~AOTLib() { 214 os::free((void*) _name); 215 } 216 217 AOTCodeHeap::~AOTCodeHeap() { 218 FREE_C_HEAP_ARRAY(AOTClass, _classes); 219 FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot); 220 } 221 222 AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) { 223 _name = (const char*) os::strdup(name); 224 225 // Verify that VM runs with the same parameters as AOT tool. 226 _config = (AOTConfiguration*) load_symbol("A.config"); 227 _header = (AOTHeader*) load_symbol("A.header"); 228 229 verify_config(); 230 231 if (!_valid && PrintAOT) { 232 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 233 tty->print_cr("%4d skipped %s aot library", _dso_id, _name); 234 } 235 } 236 237 AOTCodeHeap::AOTCodeHeap(AOTLib* lib) : 238 CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) { 239 assert(_lib->is_valid(), "invalid library"); 240 241 _lib_symbols_initialized = false; 242 _aot_id = 0; 243 244 _class_count = _lib->header()->_class_count; 245 _method_count = _lib->header()->_method_count; 246 247 // Collect metaspace info: names -> address in .got section 248 _metaspace_names = (const char*) _lib->load_symbol("A.meta.names"); 249 _method_metadata = (address) _lib->load_symbol("A.meth.metadata"); 250 _methods_offsets = (address) _lib->load_symbol("A.meth.offsets"); 251 _klasses_offsets = (address) _lib->load_symbol("A.kls.offsets"); 252 _dependencies = (address) _lib->load_symbol("A.kls.dependencies"); 253 _code_space = (address) _lib->load_symbol("A.text"); 254 255 // First cell is number of elements. 256 _klasses_got = (Metadata**) _lib->load_symbol("A.kls.got"); 257 _klasses_got_size = _lib->header()->_klasses_got_size; 258 259 _metadata_got = (Metadata**) _lib->load_symbol("A.meta.got"); 260 _metadata_got_size = _lib->header()->_metadata_got_size; 261 262 _oop_got = (oop*) _lib->load_symbol("A.oop.got"); 263 _oop_got_size = _lib->header()->_oop_got_size; 264 265 // Collect stubs info 266 _stubs_offsets = (int*) _lib->load_symbol("A.stubs.offsets"); 267 268 // code segments table 269 _code_segments = (address) _lib->load_symbol("A.code.segments"); 270 271 // method state 272 _method_state = (jlong*) _lib->load_symbol("A.meth.state"); 273 274 // Create a table for mapping classes 275 _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode); 276 memset(_classes, 0, _class_count * sizeof(AOTClass)); 277 278 // Create table for searching AOTCompiledMethod based on pc. 279 _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode); 280 memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod)); 281 282 _memory.set_low_boundary((char *)_code_space); 283 _memory.set_high_boundary((char *)_code_space); 284 _memory.set_low((char *)_code_space); 285 _memory.set_high((char *)_code_space); 286 287 _segmap.set_low_boundary((char *)_code_segments); 288 _segmap.set_low((char *)_code_segments); 289 290 _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize); 291 292 // Register aot stubs 293 register_stubs(); 294 295 if (PrintAOT || (PrintCompilation && PrintAOT)) { 296 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 297 tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name()); 298 } 299 } 300 301 void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) { 302 // The method may be explicitly excluded by the user. 303 // Or Interpreter uses an intrinsic for this method. 304 // Or method has breakpoints. 305 if (CompilerOracle::should_exclude(mh) || 306 !AbstractInterpreter::can_be_compiled(mh) || 307 (mh->number_of_breakpoints() > 0)) { 308 return; 309 } 310 // Make sure no break points were set in the method in case of a safepoint 311 // in the following code until aot code is registered. 312 NoSafepointVerifier nsv; 313 314 address code = method_data->_code; 315 const char* name = method_data->_name; 316 aot_metadata* meta = method_data->_meta; 317 318 if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) { 319 // Switch off NoSafepointVerifier because log_info() may cause safepoint 320 // and it is fine because aot code will not be registered here. 321 PauseNoSafepointVerifier pnsv(&nsv); 322 323 // When the AOT compiler compiles something big we fail to generate metadata 324 // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end. 325 // In all successful cases we always have 2 entries of scope pcs. 326 log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string()); 327 _code_to_aot[code_id]._state = invalid; 328 return; 329 } 330 331 jlong* state_adr = &_method_state[code_id]; 332 address metadata_table = method_data->_metadata_table; 333 int metadata_size = method_data->_metadata_size; 334 assert(code_id < _method_count, "sanity"); 335 _aot_id++; 336 337 #ifdef ASSERT 338 if (_aot_id > CIStop || _aot_id < CIStart) { 339 // Skip compilation 340 return; 341 } 342 #endif 343 // Check one more time. 344 if (_code_to_aot[code_id]._state == invalid) { 345 return; 346 } 347 AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id); 348 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 349 _code_to_aot[code_id]._aot = aot; // Should set this first 350 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) { 351 _code_to_aot[code_id]._aot = NULL; // Clean 352 } else { // success 353 // Publish method 354 #ifdef TIERED 355 mh->set_aot_code(aot); 356 #endif 357 { 358 MutexLocker pl(CompiledMethod_lock, Mutex::_no_safepoint_check_flag); 359 Method::set_code(mh, aot); 360 } 361 if (PrintAOT || (PrintCompilation && PrintAOT)) { 362 PauseNoSafepointVerifier pnsv(&nsv); // aot code is registered already 363 aot->print_on(tty, NULL); 364 } 365 // Publish oop only after we are visible to CompiledMethodIterator 366 aot->set_oop(mh()->method_holder()->klass_holder()); 367 } 368 } 369 370 void AOTCodeHeap::link_primitive_array_klasses() { 371 ResourceMark rm; 372 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) { 373 BasicType t = (BasicType)i; 374 if (is_java_primitive(t)) { 375 const Klass* arr_klass = Universe::typeArrayKlassObj(t); 376 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name()); 377 if (klass_data != NULL) { 378 // Set both GOT cells, resolved and initialized klass pointers. 379 // _got_index points to second cell - resolved klass pointer. 380 _klasses_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized 381 _klasses_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved 382 if (PrintAOT) { 383 tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name()); 384 } 385 } 386 } 387 } 388 } 389 390 void AOTCodeHeap::register_stubs() { 391 int stubs_count = _stubs_offsets[0]; // contains number 392 _stubs_offsets++; 393 AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets; 394 for (int i = 0; i < stubs_count; ++i) { 395 const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset; 396 address entry = _code_space + stub_offsets[i]._code_offset; 397 aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset); 398 address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset; 399 int metadata_size = stub_offsets[i]._metadata_got_size; 400 int code_id = stub_offsets[i]._code_id; 401 assert(code_id < _method_count, "sanity"); 402 jlong* state_adr = &_method_state[code_id]; 403 int len = Bytes::get_Java_u2((address)stub_name); 404 stub_name += 2; 405 char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode); 406 memcpy(full_name, "AOT ", 4); 407 memcpy(full_name+4, stub_name, len); 408 full_name[len+4] = 0; 409 guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name); 410 AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i); 411 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 412 _code_to_aot[code_id]._aot = aot; 413 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) { 414 fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state); 415 } 416 // Adjust code buffer boundaries only for stubs because they are last in the buffer. 417 adjust_boundaries(aot); 418 if (PrintAOT && Verbose) { 419 aot->print_on(tty, NULL); 420 } 421 } 422 } 423 424 #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \ 425 { \ 426 AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \ 427 /* Check for a lookup error */ \ 428 guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \ 429 *adr = (AOTSYMTYPE) VMSYMVAL; \ 430 } 431 432 void AOTCodeHeap::link_graal_runtime_symbols() { 433 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter); 434 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit); 435 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object); 436 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf); 437 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive); 438 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance); 439 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array); 440 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array); 441 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance); 442 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array); 443 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance_or_null", address, JVMCIRuntime::new_instance_or_null); 444 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array_or_null", address, JVMCIRuntime::new_array_or_null); 445 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array_or_null", address, JVMCIRuntime::new_multi_array_or_null); 446 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance_or_null", address, JVMCIRuntime::dynamic_new_instance_or_null); 447 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array_or_null", address, JVMCIRuntime::dynamic_new_array_or_null); 448 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object); 449 #if INCLUDE_G1GC 450 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre); 451 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post); 452 #endif 453 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code); 454 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc); 455 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int); 456 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception); 457 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception); 458 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception); 459 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message); 460 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error); 461 } 462 463 void AOTCodeHeap::link_shared_runtime_symbols() { 464 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub()); 465 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub()); 466 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub()); 467 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack()); 468 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap()); 469 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub()); 470 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub()); 471 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address); 472 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer); 473 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notify", address, JVMCIRuntime::object_notify); 474 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notifyAll", address, JVMCIRuntime::object_notifyAll); 475 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end); 476 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_enable_stack_reserved_zone", address, SharedRuntime::enable_stack_reserved_zone); 477 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_dynamic_invoke", address, CompilerRuntime::resolve_dynamic_invoke); 478 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol); 479 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol); 480 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters); 481 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol); 482 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event); 483 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event); 484 485 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow); 486 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp); 487 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos); 488 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin); 489 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan); 490 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog); 491 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10); 492 } 493 494 void AOTCodeHeap::link_stub_routines_symbols() { 495 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy); 496 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy); 497 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy); 498 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy); 499 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy); 500 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit); 501 502 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy); 503 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy); 504 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy); 505 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy); 506 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy); 507 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit); 508 509 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy); 510 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy); 511 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy); 512 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy); 513 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy); 514 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit); 515 516 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy); 517 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy); 518 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy); 519 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy); 520 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy); 521 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit); 522 523 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_unsafe_arraycopy", address, StubRoutines::_unsafe_arraycopy); 524 525 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy); 526 527 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_generic_arraycopy", address, StubRoutines::_generic_arraycopy); 528 529 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock); 530 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock); 531 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt); 532 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt); 533 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_electronicCodeBook_encryptAESCrypt", address, StubRoutines::_electronicCodeBook_encryptAESCrypt); 534 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_electronicCodeBook_decryptAESCrypt", address, StubRoutines::_electronicCodeBook_decryptAESCrypt); 535 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32); 536 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr); 537 538 539 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress); 540 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB); 541 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress); 542 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB); 543 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress); 544 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB); 545 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen); 546 547 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt); 548 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks); 549 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_base64_encodeBlock", address, StubRoutines::_base64_encodeBlock); 550 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr); 551 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C); 552 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32); 553 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen); 554 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd); 555 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply); 556 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare); 557 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch); 558 559 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry); 560 561 } 562 563 void AOTCodeHeap::link_os_symbols() { 564 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis); 565 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos); 566 } 567 568 /* 569 * Link any global symbols in precompiled DSO with dlopen() _dl_handle 570 * dso_handle. 571 */ 572 573 void AOTCodeHeap::link_global_lib_symbols() { 574 if (!_lib_symbols_initialized) { 575 _lib_symbols_initialized = true; 576 577 CollectedHeap* heap = Universe::heap(); 578 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, (BarrierSet::barrier_set()->is_a(BarrierSet::CardTableBarrierSet) ? ci_card_table_address() : NULL)); 579 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL)); 580 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL)); 581 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page()); 582 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, CompressedKlassPointers::base()); 583 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, CompressedOops::base()); 584 #if INCLUDE_G1GC 585 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes); 586 #endif 587 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc()); 588 link_shared_runtime_symbols(); 589 link_stub_routines_symbols(); 590 link_os_symbols(); 591 link_graal_runtime_symbols(); 592 593 // Link primitive array klasses. 594 link_primitive_array_klasses(); 595 } 596 } 597 598 #ifndef PRODUCT 599 int AOTCodeHeap::klasses_seen = 0; 600 int AOTCodeHeap::aot_klasses_found = 0; 601 int AOTCodeHeap::aot_klasses_fp_miss = 0; 602 int AOTCodeHeap::aot_klasses_cl_miss = 0; 603 int AOTCodeHeap::aot_methods_found = 0; 604 605 void AOTCodeHeap::print_statistics() { 606 tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found); 607 tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss); 608 } 609 #endif 610 611 Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) { 612 int method_name_len = Bytes::get_Java_u2((address)method_name); 613 method_name += 2; 614 const char* signature_name = method_name + method_name_len; 615 int signature_name_len = Bytes::get_Java_u2((address)signature_name); 616 signature_name += 2; 617 // The class should have been loaded so the method and signature should already be 618 // in the symbol table. If they're not there, the method doesn't exist. 619 TempNewSymbol name = SymbolTable::probe(method_name, method_name_len); 620 TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len); 621 622 Method* m; 623 if (name == NULL || signature == NULL) { 624 m = NULL; 625 } else if (name == vmSymbols::object_initializer_name() || 626 name == vmSymbols::class_initializer_name()) { 627 // Never search superclasses for constructors 628 if (klass->is_instance_klass()) { 629 m = InstanceKlass::cast(klass)->find_method(name, signature); 630 } else { 631 m = NULL; 632 } 633 } else { 634 m = klass->lookup_method(name, signature); 635 if (m == NULL && klass->is_instance_klass()) { 636 m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature); 637 } 638 } 639 if (m == NULL) { 640 // Fatal error because we assume classes and methods should not be changed since aot compilation. 641 const char* klass_name = klass->external_name(); 642 int klass_len = (int)strlen(klass_name); 643 char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1); 644 memcpy(meta_name, klass_name, klass_len); 645 meta_name[klass_len] = '.'; 646 memcpy(&meta_name[klass_len + 1], method_name, method_name_len); 647 memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len); 648 meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0'; 649 Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name); 650 java_lang_Throwable::print(exception(), tty); 651 tty->cr(); 652 java_lang_Throwable::print_stack_trace(exception, tty); 653 tty->cr(); 654 fatal("Failed to find method '%s'", meta_name); 655 } 656 NOT_PRODUCT( aot_methods_found++; ) 657 return m; 658 } 659 660 AOTKlassData* AOTCodeHeap::find_klass(const char *name) { 661 return (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), name); 662 } 663 664 AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) { 665 ResourceMark rm; 666 AOTKlassData* klass_data = find_klass(ik->signature_name()); 667 return klass_data; 668 } 669 670 bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) { 671 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); 672 AOTKlassData* klass_data = find_klass(dependee_ik); 673 if (klass_data == NULL) { 674 return false; // no AOT records for this class - no dependencies 675 } 676 if (!dependee_ik->has_passed_fingerprint_check()) { 677 return false; // different class 678 } 679 680 int methods_offset = klass_data->_dependent_methods_offset; 681 if (methods_offset >= 0) { 682 address methods_cnt_adr = _dependencies + methods_offset; 683 int methods_cnt = *(int*)methods_cnt_adr; 684 int* indexes = (int*)(methods_cnt_adr + 4); 685 for (int i = 0; i < methods_cnt; ++i) { 686 int code_id = indexes[i]; 687 if (_code_to_aot[code_id]._aot == aot) { 688 return true; // found dependent method 689 } 690 } 691 } 692 return false; 693 } 694 695 void AOTCodeHeap::mark_evol_dependent_methods(InstanceKlass* dependee) { 696 AOTKlassData* klass_data = find_klass(dependee); 697 if (klass_data == NULL) { 698 return; // no AOT records for this class - no dependencies 699 } 700 if (!dependee->has_passed_fingerprint_check()) { 701 return; // different class 702 } 703 704 int methods_offset = klass_data->_dependent_methods_offset; 705 if (methods_offset >= 0) { 706 address methods_cnt_adr = _dependencies + methods_offset; 707 int methods_cnt = *(int*)methods_cnt_adr; 708 int* indexes = (int*)(methods_cnt_adr + 4); 709 for (int i = 0; i < methods_cnt; ++i) { 710 int code_id = indexes[i]; 711 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot; 712 if (aot != NULL) { 713 aot->mark_for_deoptimization(false); 714 } 715 } 716 } 717 } 718 719 void AOTCodeHeap::sweep_dependent_methods(int* indexes, int methods_cnt) { 720 int marked = 0; 721 for (int i = 0; i < methods_cnt; ++i) { 722 int code_id = indexes[i]; 723 // Invalidate aot code. 724 if (Atomic::cmpxchg(invalid, &_code_to_aot[code_id]._state, not_set) != not_set) { 725 if (_code_to_aot[code_id]._state == in_use) { 726 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot; 727 assert(aot != NULL, "aot should be set"); 728 if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs. 729 aot->mark_for_deoptimization(false); 730 marked++; 731 } 732 } 733 } 734 } 735 if (marked > 0) { 736 Deoptimization::deoptimize_all_marked(); 737 } 738 } 739 740 void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) { 741 // Make dependent methods non_entrant forever. 742 int methods_offset = klass_data->_dependent_methods_offset; 743 if (methods_offset >= 0) { 744 address methods_cnt_adr = _dependencies + methods_offset; 745 int methods_cnt = *(int*)methods_cnt_adr; 746 int* indexes = (int*)(methods_cnt_adr + 4); 747 sweep_dependent_methods(indexes, methods_cnt); 748 } 749 } 750 751 void AOTCodeHeap::sweep_dependent_methods(InstanceKlass* ik) { 752 AOTKlassData* klass_data = find_klass(ik); 753 vmassert(klass_data != NULL, "dependency data missing"); 754 sweep_dependent_methods(klass_data); 755 } 756 757 void AOTCodeHeap::sweep_method(AOTCompiledMethod *aot) { 758 int indexes[] = {aot->method_index()}; 759 sweep_dependent_methods(indexes, 1); 760 vmassert(aot->method()->code() != aot TIERED_ONLY( && aot->method()->aot_code() == NULL), "method still active"); 761 } 762 763 764 bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) { 765 ResourceMark rm; 766 767 NOT_PRODUCT( klasses_seen++; ) 768 769 // AOT does not support custom class loaders. 770 ClassLoaderData* cld = ik->class_loader_data(); 771 if (!cld->is_builtin_class_loader_data()) { 772 log_trace(aot, class, load)("skip class %s for custom classloader %s (%p) tid=" INTPTR_FORMAT, 773 ik->internal_name(), cld->loader_name(), cld, p2i(thread)); 774 return false; 775 } 776 777 AOTKlassData* klass_data = find_klass(ik); 778 if (klass_data == NULL) { 779 return false; 780 } 781 782 if (!ik->has_passed_fingerprint_check()) { 783 NOT_PRODUCT( aot_klasses_fp_miss++; ) 784 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 785 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 786 _lib->name(), p2i(thread)); 787 sweep_dependent_methods(klass_data); 788 return false; 789 } 790 791 if (ik->has_been_redefined()) { 792 log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT, 793 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 794 _lib->name(), p2i(thread)); 795 sweep_dependent_methods(klass_data); 796 return false; 797 } 798 799 assert(klass_data->_class_id < _class_count, "invalid class id"); 800 AOTClass* aot_class = &_classes[klass_data->_class_id]; 801 ClassLoaderData* aot_cld = aot_class->_classloader; 802 if (aot_cld != NULL && aot_cld != cld) { 803 log_trace(aot, class, load)("class %s in %s already loaded for classloader %s (%p) vs %s (%p) tid=" INTPTR_FORMAT, 804 ik->internal_name(), _lib->name(), aot_cld->loader_name(), aot_cld, cld->loader_name(), cld, p2i(thread)); 805 NOT_PRODUCT( aot_klasses_cl_miss++; ) 806 return false; 807 } 808 809 if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) { 810 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()); 811 sweep_dependent_methods(klass_data); 812 return false; 813 } 814 815 NOT_PRODUCT( aot_klasses_found++; ) 816 817 log_trace(aot, class, load)("found %s in %s for classloader %s (%p) tid=" INTPTR_FORMAT, ik->internal_name(), _lib->name(), cld->loader_name(), cld, p2i(thread)); 818 819 aot_class->_classloader = cld; 820 // Set klass's Resolve (second) got cell. 821 _klasses_got[klass_data->_got_index] = ik; 822 if (ik->is_initialized()) { 823 _klasses_got[klass_data->_got_index - 1] = ik; 824 } 825 826 // Initialize global symbols of the DSO to the corresponding VM symbol values. 827 link_global_lib_symbols(); 828 829 int methods_offset = klass_data->_compiled_methods_offset; 830 if (methods_offset >= 0) { 831 address methods_cnt_adr = _methods_offsets + methods_offset; 832 int methods_cnt = *(int*)methods_cnt_adr; 833 // Collect data about compiled methods 834 AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt); 835 AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4); 836 for (int i = 0; i < methods_cnt; ++i) { 837 AOTMethodOffsets* method_offsets = &methods_offsets[i]; 838 int code_id = method_offsets->_code_id; 839 if (_code_to_aot[code_id]._state == invalid) { 840 continue; // skip AOT methods slots which have been invalidated 841 } 842 AOTMethodData* method_data = &methods_data[i]; 843 const char* aot_name = _metaspace_names + method_offsets->_name_offset; 844 method_data->_name = aot_name; 845 method_data->_code = _code_space + method_offsets->_code_offset; 846 method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset); 847 method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset; 848 method_data->_metadata_size = method_offsets->_metadata_got_size; 849 // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V" 850 int klass_len = Bytes::get_Java_u2((address)aot_name); 851 const char* method_name = aot_name + 2 + klass_len; 852 Method* m = AOTCodeHeap::find_method(ik, thread, method_name); 853 methodHandle mh(thread, m); 854 if (mh->code() != NULL) { // Does it have already compiled code? 855 continue; // Don't overwrite 856 } 857 publish_aot(mh, method_data, code_id); 858 } 859 } 860 return true; 861 } 862 863 AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const { 864 for (int index = start; index < _method_count; index++) { 865 if (_code_to_aot[index]._state != in_use) { 866 continue; // Skip uninitialized entries. 867 } 868 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 869 return aot; 870 } 871 return NULL; 872 } 873 874 void* AOTCodeHeap::first() const { 875 return next_in_use_at(0); 876 } 877 878 void* AOTCodeHeap::next(void* p) const { 879 AOTCompiledMethod *aot = (AOTCompiledMethod *)p; 880 int next_index = aot->method_index() + 1; 881 assert(next_index <= _method_count, ""); 882 if (next_index == _method_count) { 883 return NULL; 884 } 885 return next_in_use_at(next_index); 886 } 887 888 void* AOTCodeHeap::find_start(void* p) const { 889 if (!contains(p)) { 890 return NULL; 891 } 892 size_t offset = pointer_delta(p, low_boundary(), 1); 893 // Use segments table 894 size_t seg_idx = offset / _lib->config()->_codeSegmentSize; 895 if ((int)(_code_segments[seg_idx]) == 0xff) { 896 return NULL; 897 } 898 while (_code_segments[seg_idx] > 0) { 899 seg_idx -= (int)_code_segments[seg_idx]; 900 } 901 int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize; 902 int aot_index = *(int*)(_code_space + code_offset); 903 AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot; 904 assert(aot != NULL, "should find registered aot method"); 905 return aot; 906 } 907 908 AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const { 909 assert(contains(p), "should be here"); 910 return (AOTCompiledMethod *)find_start(p); 911 } 912 913 CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const { 914 return (CodeBlob*)AOTCodeHeap::find_start(start); 915 } 916 917 void AOTCodeHeap::oops_do(OopClosure* f) { 918 for (int i = 0; i < _oop_got_size; i++) { 919 oop* p = &_oop_got[i]; 920 if (*p == NULL) continue; // skip non-oops 921 f->do_oop(p); 922 } 923 for (int index = 0; index < _method_count; index++) { 924 if (_code_to_aot[index]._state != in_use) { 925 continue; // Skip uninitialized entries. 926 } 927 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 928 aot->do_oops(f); 929 } 930 } 931 932 // Scan only klasses_got cells which should have only Klass*, 933 // metadata_got cells are scanned only for alive AOT methods 934 // by AOTCompiledMethod::metadata_do(). 935 void AOTCodeHeap::got_metadata_do(MetadataClosure* f) { 936 for (int i = 1; i < _klasses_got_size; i++) { 937 Metadata** p = &_klasses_got[i]; 938 Metadata* md = *p; 939 if (md == NULL) continue; // skip non-oops 940 if (Metaspace::contains(md)) { 941 f->do_metadata(md); 942 } else { 943 intptr_t meta = (intptr_t)md; 944 fatal("Invalid value in _klasses_got[%d] = " INTPTR_FORMAT, i, meta); 945 } 946 } 947 } 948 949 void AOTCodeHeap::cleanup_inline_caches() { 950 for (int index = 0; index < _method_count; index++) { 951 if (_code_to_aot[index]._state != in_use) { 952 continue; // Skip uninitialized entries. 953 } 954 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 955 aot->cleanup_inline_caches(false); 956 } 957 } 958 959 #ifdef ASSERT 960 int AOTCodeHeap::verify_icholder_relocations() { 961 int count = 0; 962 for (int index = 0; index < _method_count; index++) { 963 if (_code_to_aot[index]._state != in_use) { 964 continue; // Skip uninitialized entries. 965 } 966 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 967 count += aot->verify_icholder_relocations(); 968 } 969 return count; 970 } 971 #endif 972 973 void AOTCodeHeap::metadata_do(MetadataClosure* f) { 974 for (int index = 0; index < _method_count; index++) { 975 if (_code_to_aot[index]._state != in_use) { 976 continue; // Skip uninitialized entries. 977 } 978 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 979 if (aot->_is_alive()) { 980 aot->metadata_do(f); 981 } 982 } 983 // Scan klasses_got cells. 984 got_metadata_do(f); 985 } 986 987 bool AOTCodeHeap::reconcile_dynamic_klass(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Klass *dyno_klass, const char *descriptor1, const char *descriptor2) { 988 const char * const descriptors[2] = {descriptor1, descriptor2}; 989 JavaThread *thread = JavaThread::current(); 990 ResourceMark rm(thread); 991 992 AOTKlassData* holder_data = find_klass(holder); 993 vmassert(holder_data != NULL, "klass %s not found", holder->signature_name()); 994 vmassert(is_dependent_method(holder, caller), "sanity"); 995 996 AOTKlassData* dyno_data = NULL; 997 bool adapter_failed = false; 998 char buf[64]; 999 int descriptor_index = 0; 1000 // descriptors[0] specific name ("adapter:<method_id>") for matching 1001 // descriptors[1] fall-back name ("adapter") for depdencies 1002 while (descriptor_index < 2) { 1003 const char *descriptor = descriptors[descriptor_index]; 1004 if (descriptor == NULL) { 1005 break; 1006 } 1007 jio_snprintf(buf, sizeof buf, "%s<%d:%d>", descriptor, holder_data->_class_id, index); 1008 dyno_data = find_klass(buf); 1009 if (dyno_data != NULL) { 1010 break; 1011 } 1012 // If match failed then try fall-back for dependencies 1013 ++descriptor_index; 1014 adapter_failed = true; 1015 } 1016 1017 if (dyno_data == NULL && dyno_klass == NULL) { 1018 // all is well, no (appendix) at compile-time, and still none 1019 return true; 1020 } 1021 1022 if (dyno_data == NULL) { 1023 // no (appendix) at build-time, but now there is 1024 sweep_dependent_methods(holder_data); 1025 return false; 1026 } 1027 1028 if (adapter_failed) { 1029 // adapter method mismatch 1030 sweep_dependent_methods(holder_data); 1031 sweep_dependent_methods(dyno_data); 1032 return false; 1033 } 1034 1035 if (dyno_klass == NULL) { 1036 // (appendix) at build-time, none now 1037 sweep_dependent_methods(holder_data); 1038 sweep_dependent_methods(dyno_data); 1039 return false; 1040 } 1041 1042 // TODO: support array appendix object 1043 if (!dyno_klass->is_instance_klass()) { 1044 sweep_dependent_methods(holder_data); 1045 sweep_dependent_methods(dyno_data); 1046 return false; 1047 } 1048 1049 InstanceKlass* dyno = InstanceKlass::cast(dyno_klass); 1050 1051 if (!dyno->is_unsafe_anonymous()) { 1052 if (_klasses_got[dyno_data->_got_index] != dyno) { 1053 // compile-time class different from runtime class, fail and deoptimize 1054 sweep_dependent_methods(holder_data); 1055 sweep_dependent_methods(dyno_data); 1056 return false; 1057 } 1058 1059 if (dyno->is_initialized()) { 1060 _klasses_got[dyno_data->_got_index - 1] = dyno; 1061 } 1062 return true; 1063 } 1064 1065 // TODO: support anonymous supers 1066 if (!dyno->supers_have_passed_fingerprint_checks() || dyno->get_stored_fingerprint() != dyno_data->_fingerprint) { 1067 NOT_PRODUCT( aot_klasses_fp_miss++; ) 1068 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 1069 dyno->internal_name(), dyno->is_shared() ? " (shared)" : "", 1070 _lib->name(), p2i(thread)); 1071 sweep_dependent_methods(holder_data); 1072 sweep_dependent_methods(dyno_data); 1073 return false; 1074 } 1075 1076 _klasses_got[dyno_data->_got_index] = dyno; 1077 if (dyno->is_initialized()) { 1078 _klasses_got[dyno_data->_got_index - 1] = dyno; 1079 } 1080 1081 // TODO: hook up any AOT code 1082 // load_klass_data(dyno_data, thread); 1083 return true; 1084 } 1085 1086 bool AOTCodeHeap::reconcile_dynamic_method(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Method *adapter_method) { 1087 InstanceKlass *adapter_klass = adapter_method->method_holder(); 1088 char buf[64]; 1089 jio_snprintf(buf, sizeof buf, "adapter:%d", adapter_method->method_idnum()); 1090 if (!reconcile_dynamic_klass(caller, holder, index, adapter_klass, buf, "adapter")) { 1091 return false; 1092 } 1093 return true; 1094 } 1095 1096 bool AOTCodeHeap::reconcile_dynamic_invoke(AOTCompiledMethod* caller, InstanceKlass* holder, int index, Method* adapter_method, Klass *appendix_klass) { 1097 if (!reconcile_dynamic_klass(caller, holder, index, appendix_klass, "appendix")) { 1098 return false; 1099 } 1100 1101 if (!reconcile_dynamic_method(caller, holder, index, adapter_method)) { 1102 return false; 1103 } 1104 1105 return true; 1106 }