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/atomic.hpp" 44 #include "runtime/deoptimization.hpp" 45 #include "runtime/handles.inline.hpp" 46 #include "runtime/os.hpp" 47 #include "runtime/safepointVerifiers.hpp" 48 #include "runtime/sharedRuntime.hpp" 49 #include "runtime/vmOperations.hpp" 50 #include "utilities/sizes.hpp" 51 52 bool AOTLib::_narrow_oop_shift_initialized = false; 53 int AOTLib::_narrow_oop_shift = 0; 54 int AOTLib::_narrow_klass_shift = 0; 55 56 address AOTLib::load_symbol(const char *name) { 57 address symbol = (address) os::dll_lookup(_dl_handle, name); 58 if (symbol == NULL) { 59 tty->print_cr("Shared file %s error: missing %s", _name, name); 60 vm_exit(1); 61 } 62 return symbol; 63 } 64 65 Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) { 66 AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name); 67 Klass* k = (Klass*)_klasses_got[klass_data->_got_index]; 68 if (k == NULL) { 69 Thread* thread = Thread::current(); 70 k = lookup_klass(klass_name, klass_len, method, thread); 71 // Note, exceptions are cleared. 72 if (k == NULL) { 73 fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name); 74 vm_exit(1); 75 } 76 // Patch now to avoid extra runtime lookup 77 _klasses_got[klass_data->_got_index] = k; 78 if (k->is_instance_klass()) { 79 InstanceKlass* ik = InstanceKlass::cast(k); 80 if (ik->is_initialized()) { 81 _klasses_got[klass_data->_got_index - 1] = ik; 82 } 83 } 84 } 85 return k; 86 } 87 88 Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) { 89 ResourceMark rm(thread); 90 assert(method != NULL, "incorrect call parameter"); 91 methodHandle caller(thread, (Method*)method); 92 93 // Use class loader of aot method. 94 Handle loader(thread, caller->method_holder()->class_loader()); 95 Handle protection_domain(thread, caller->method_holder()->protection_domain()); 96 97 // Ignore wrapping L and ; 98 if (name[0] == JVM_SIGNATURE_CLASS) { 99 assert(len > 2, "small name %s", name); 100 name++; 101 len -= 2; 102 } 103 TempNewSymbol sym = SymbolTable::probe(name, len); 104 if (sym == NULL) { 105 log_debug(aot, class, resolve)("Probe failed for AOT class %s", name); 106 return NULL; 107 } 108 Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread); 109 assert(!thread->has_pending_exception(), "should not throw"); 110 111 if (k != NULL) { 112 log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name()); 113 } 114 return k; 115 } 116 117 void AOTLib::handle_config_error(const char* format, ...) { 118 if (PrintAOT) { 119 va_list ap; 120 va_start(ap, format); 121 tty->vprint_cr(format, ap); 122 va_end(ap); 123 } 124 if (UseAOTStrictLoading) { 125 vm_exit(1); 126 } 127 _valid = false; 128 } 129 130 void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) { 131 if (_valid && aot_flag != flag) { 132 handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false")); 133 } 134 } 135 136 void AOTLib::verify_flag(int aot_flag, int flag, const char* name) { 137 if (_valid && aot_flag != flag) { 138 handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag); 139 } 140 } 141 142 void AOTLib::verify_config() { 143 GrowableArray<AOTLib*>* libraries = AOTLoader::libraries(); 144 for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) { 145 if ((*lib)->_config == _config) { 146 handle_config_error("AOT library %s already loaded.", (*lib)->_name); 147 return; 148 } 149 } 150 151 if (_header->_version != AOTHeader::AOT_SHARED_VERSION) { 152 handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION); 153 return; 154 } 155 156 const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2; 157 if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) { 158 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()); 159 return; 160 } 161 162 // Debug VM has different layout of runtime and metadata structures 163 #ifdef ASSERT 164 verify_flag(_config->_debug_VM, true, "Debug VM version"); 165 #else 166 verify_flag(!(_config->_debug_VM), true, "Product VM version"); 167 #endif 168 // Check configuration size 169 verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size"); 170 171 // Check GC 172 CollectedHeap::Name gc = (CollectedHeap::Name)_config->_gc; 173 if (_valid && !GCConfig::is_gc_selected(gc)) { 174 handle_config_error("Shared file %s error: used '%s' is different from current '%s'", _name, GCConfig::hs_err_name(gc), GCConfig::hs_err_name()); 175 } 176 177 // Check flags 178 verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops"); 179 verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers"); 180 verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB"); 181 verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking"); 182 verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes"); 183 verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth"); 184 verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle"); 185 verify_flag(_config->_compactFields, CompactFields, "CompactFields"); 186 verify_flag(_config->_enableContended, EnableContended, "EnableContended"); 187 verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended"); 188 verify_flag(_config->_threadLocalHandshakes, ThreadLocalHandshakes, "ThreadLocalHandshakes"); 189 190 if (!TieredCompilation && _config->_tieredAOT) { 191 handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name); 192 } 193 194 // Shifts are static values which initialized by 0 until java heap initialization. 195 // AOT libs are loaded before heap initialized so shift values are not set. 196 // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded. 197 // Set shifts value based on first AOT library config. 198 if (UseCompressedOops && _valid) { 199 if (!_narrow_oop_shift_initialized) { 200 _narrow_oop_shift = _config->_narrowOopShift; 201 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 202 _narrow_klass_shift = _config->_narrowKlassShift; 203 } 204 _narrow_oop_shift_initialized = true; 205 } else { 206 verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift"); 207 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 208 verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift"); 209 } 210 } 211 } 212 } 213 214 AOTLib::~AOTLib() { 215 os::free((void*) _name); 216 } 217 218 AOTCodeHeap::~AOTCodeHeap() { 219 FREE_C_HEAP_ARRAY(AOTClass, _classes); 220 FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot); 221 } 222 223 AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) { 224 _name = (const char*) os::strdup(name); 225 226 // Verify that VM runs with the same parameters as AOT tool. 227 _config = (AOTConfiguration*) load_symbol("A.config"); 228 _header = (AOTHeader*) load_symbol("A.header"); 229 230 verify_config(); 231 232 if (!_valid && PrintAOT) { 233 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 234 tty->print_cr("%4d skipped %s aot library", _dso_id, _name); 235 } 236 } 237 238 AOTCodeHeap::AOTCodeHeap(AOTLib* lib) : 239 CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) { 240 assert(_lib->is_valid(), "invalid library"); 241 242 _lib_symbols_initialized = false; 243 _aot_id = 0; 244 245 _class_count = _lib->header()->_class_count; 246 _method_count = _lib->header()->_method_count; 247 248 // Collect metaspace info: names -> address in .got section 249 _metaspace_names = (const char*) _lib->load_symbol("A.meta.names"); 250 _method_metadata = (address) _lib->load_symbol("A.meth.metadata"); 251 _methods_offsets = (address) _lib->load_symbol("A.meth.offsets"); 252 _klasses_offsets = (address) _lib->load_symbol("A.kls.offsets"); 253 _dependencies = (address) _lib->load_symbol("A.kls.dependencies"); 254 _code_space = (address) _lib->load_symbol("A.text"); 255 256 // First cell is number of elements. 257 _klasses_got = (Metadata**) _lib->load_symbol("A.kls.got"); 258 _klasses_got_size = _lib->header()->_klasses_got_size; 259 260 _metadata_got = (Metadata**) _lib->load_symbol("A.meta.got"); 261 _metadata_got_size = _lib->header()->_metadata_got_size; 262 263 _oop_got = (oop*) _lib->load_symbol("A.oop.got"); 264 _oop_got_size = _lib->header()->_oop_got_size; 265 266 // Collect stubs info 267 _stubs_offsets = (int*) _lib->load_symbol("A.stubs.offsets"); 268 269 // code segments table 270 _code_segments = (address) _lib->load_symbol("A.code.segments"); 271 272 // method state 273 _method_state = (jlong*) _lib->load_symbol("A.meth.state"); 274 275 // Create a table for mapping classes 276 _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode); 277 memset(_classes, 0, _class_count * sizeof(AOTClass)); 278 279 // Create table for searching AOTCompiledMethod based on pc. 280 _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode); 281 memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod)); 282 283 _memory.set_low_boundary((char *)_code_space); 284 _memory.set_high_boundary((char *)_code_space); 285 _memory.set_low((char *)_code_space); 286 _memory.set_high((char *)_code_space); 287 288 _segmap.set_low_boundary((char *)_code_segments); 289 _segmap.set_low((char *)_code_segments); 290 291 _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize); 292 293 // Register aot stubs 294 register_stubs(); 295 296 if (PrintAOT || (PrintCompilation && PrintAOT)) { 297 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 298 tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name()); 299 } 300 } 301 302 void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) { 303 // The method may be explicitly excluded by the user. 304 // Or Interpreter uses an intrinsic for this method. 305 // Or method has breakpoints. 306 if (CompilerOracle::should_exclude(mh) || 307 !AbstractInterpreter::can_be_compiled(mh) || 308 (mh->number_of_breakpoints() > 0)) { 309 return; 310 } 311 // Make sure no break points were set in the method in case of a safepoint 312 // in the following code until aot code is registered. 313 NoSafepointVerifier nsv; 314 315 address code = method_data->_code; 316 const char* name = method_data->_name; 317 aot_metadata* meta = method_data->_meta; 318 319 if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) { 320 // Switch off NoSafepointVerifier because log_info() may cause safepoint 321 // and it is fine because aot code will not be registered here. 322 PauseNoSafepointVerifier pnsv(&nsv); 323 324 // When the AOT compiler compiles something big we fail to generate metadata 325 // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end. 326 // In all successful cases we always have 2 entries of scope pcs. 327 log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string()); 328 _code_to_aot[code_id]._state = invalid; 329 return; 330 } 331 332 jlong* state_adr = &_method_state[code_id]; 333 address metadata_table = method_data->_metadata_table; 334 int metadata_size = method_data->_metadata_size; 335 assert(code_id < _method_count, "sanity"); 336 _aot_id++; 337 338 #ifdef ASSERT 339 if (_aot_id > CIStop || _aot_id < CIStart) { 340 // Skip compilation 341 return; 342 } 343 #endif 344 // Check one more time. 345 if (_code_to_aot[code_id]._state == invalid) { 346 return; 347 } 348 AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id); 349 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 350 _code_to_aot[code_id]._aot = aot; // Should set this first 351 if (Atomic::cmpxchg(&_code_to_aot[code_id]._state, not_set, in_use) != not_set) { 352 _code_to_aot[code_id]._aot = NULL; // Clean 353 } else { // success 354 // Publish method 355 #ifdef TIERED 356 mh->set_aot_code(aot); 357 #endif 358 { 359 MutexLocker pl(CompiledMethod_lock, Mutex::_no_safepoint_check_flag); 360 Method::set_code(mh, aot); 361 } 362 if (PrintAOT || (PrintCompilation && PrintAOT)) { 363 PauseNoSafepointVerifier pnsv(&nsv); // aot code is registered already 364 aot->print_on(tty, NULL); 365 } 366 // Publish oop only after we are visible to CompiledMethodIterator 367 aot->set_oop(mh()->method_holder()->klass_holder()); 368 } 369 } 370 371 void AOTCodeHeap::link_primitive_array_klasses() { 372 ResourceMark rm; 373 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) { 374 BasicType t = (BasicType)i; 375 if (is_java_primitive(t)) { 376 const Klass* arr_klass = Universe::typeArrayKlassObj(t); 377 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name()); 378 if (klass_data != NULL) { 379 // Set both GOT cells, resolved and initialized klass pointers. 380 // _got_index points to second cell - resolved klass pointer. 381 _klasses_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized 382 _klasses_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved 383 if (PrintAOT) { 384 tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name()); 385 } 386 } 387 } 388 } 389 } 390 391 void AOTCodeHeap::register_stubs() { 392 int stubs_count = _stubs_offsets[0]; // contains number 393 _stubs_offsets++; 394 AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets; 395 for (int i = 0; i < stubs_count; ++i) { 396 const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset; 397 address entry = _code_space + stub_offsets[i]._code_offset; 398 aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset); 399 address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset; 400 int metadata_size = stub_offsets[i]._metadata_got_size; 401 int code_id = stub_offsets[i]._code_id; 402 assert(code_id < _method_count, "sanity"); 403 jlong* state_adr = &_method_state[code_id]; 404 int len = Bytes::get_Java_u2((address)stub_name); 405 stub_name += 2; 406 char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode); 407 memcpy(full_name, "AOT ", 4); 408 memcpy(full_name+4, stub_name, len); 409 full_name[len+4] = 0; 410 guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name); 411 AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i); 412 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 413 _code_to_aot[code_id]._aot = aot; 414 if (Atomic::cmpxchg(&_code_to_aot[code_id]._state, not_set, in_use) != not_set) { 415 fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state); 416 } 417 // Adjust code buffer boundaries only for stubs because they are last in the buffer. 418 adjust_boundaries(aot); 419 if (PrintAOT && Verbose) { 420 aot->print_on(tty, NULL); 421 } 422 } 423 } 424 425 #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \ 426 { \ 427 AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \ 428 /* Check for a lookup error */ \ 429 guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \ 430 *adr = (AOTSYMTYPE) VMSYMVAL; \ 431 } 432 433 void AOTCodeHeap::link_graal_runtime_symbols() { 434 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter); 435 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit); 436 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object); 437 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf); 438 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive); 439 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance); 440 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array); 441 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array); 442 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance); 443 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array); 444 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance_or_null", address, JVMCIRuntime::new_instance_or_null); 445 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array_or_null", address, JVMCIRuntime::new_array_or_null); 446 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array_or_null", address, JVMCIRuntime::new_multi_array_or_null); 447 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance_or_null", address, JVMCIRuntime::dynamic_new_instance_or_null); 448 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array_or_null", address, JVMCIRuntime::dynamic_new_array_or_null); 449 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object); 450 #if INCLUDE_G1GC 451 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre); 452 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post); 453 #endif 454 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code); 455 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc); 456 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int); 457 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception); 458 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception); 459 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception); 460 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message); 461 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error); 462 } 463 464 void AOTCodeHeap::link_shared_runtime_symbols() { 465 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub()); 466 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub()); 467 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub()); 468 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack()); 469 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap()); 470 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub()); 471 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub()); 472 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address); 473 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer); 474 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notify", address, JVMCIRuntime::object_notify); 475 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notifyAll", address, JVMCIRuntime::object_notifyAll); 476 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end); 477 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_enable_stack_reserved_zone", address, SharedRuntime::enable_stack_reserved_zone); 478 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_dynamic_invoke", address, CompilerRuntime::resolve_dynamic_invoke); 479 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol); 480 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol); 481 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters); 482 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol); 483 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event); 484 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event); 485 486 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow); 487 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp); 488 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos); 489 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin); 490 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan); 491 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog); 492 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10); 493 } 494 495 void AOTCodeHeap::link_stub_routines_symbols() { 496 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy); 497 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy); 498 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy); 499 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy); 500 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy); 501 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit); 502 503 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy); 504 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy); 505 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy); 506 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy); 507 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy); 508 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit); 509 510 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy); 511 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy); 512 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy); 513 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy); 514 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy); 515 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit); 516 517 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy); 518 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy); 519 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy); 520 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy); 521 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy); 522 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit); 523 524 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_unsafe_arraycopy", address, StubRoutines::_unsafe_arraycopy); 525 526 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy); 527 528 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_generic_arraycopy", address, StubRoutines::_generic_arraycopy); 529 530 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock); 531 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock); 532 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt); 533 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt); 534 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_electronicCodeBook_encryptAESCrypt", address, StubRoutines::_electronicCodeBook_encryptAESCrypt); 535 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_electronicCodeBook_decryptAESCrypt", address, StubRoutines::_electronicCodeBook_decryptAESCrypt); 536 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32); 537 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr); 538 539 540 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress); 541 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB); 542 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress); 543 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB); 544 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress); 545 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB); 546 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen); 547 548 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt); 549 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks); 550 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_base64_encodeBlock", address, StubRoutines::_base64_encodeBlock); 551 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr); 552 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C); 553 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32); 554 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen); 555 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd); 556 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply); 557 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare); 558 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch); 559 560 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry); 561 562 } 563 564 void AOTCodeHeap::link_os_symbols() { 565 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis); 566 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos); 567 } 568 569 /* 570 * Link any global symbols in precompiled DSO with dlopen() _dl_handle 571 * dso_handle. 572 */ 573 574 void AOTCodeHeap::link_global_lib_symbols() { 575 if (!_lib_symbols_initialized) { 576 _lib_symbols_initialized = true; 577 578 CollectedHeap* heap = Universe::heap(); 579 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, (BarrierSet::barrier_set()->is_a(BarrierSet::CardTableBarrierSet) ? ci_card_table_address() : NULL)); 580 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL)); 581 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL)); 582 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page()); 583 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, CompressedKlassPointers::base()); 584 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, CompressedOops::base()); 585 #if INCLUDE_G1GC 586 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes); 587 #endif 588 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc()); 589 link_shared_runtime_symbols(); 590 link_stub_routines_symbols(); 591 link_os_symbols(); 592 link_graal_runtime_symbols(); 593 594 // Link primitive array klasses. 595 link_primitive_array_klasses(); 596 } 597 } 598 599 #ifndef PRODUCT 600 int AOTCodeHeap::klasses_seen = 0; 601 int AOTCodeHeap::aot_klasses_found = 0; 602 int AOTCodeHeap::aot_klasses_fp_miss = 0; 603 int AOTCodeHeap::aot_klasses_cl_miss = 0; 604 int AOTCodeHeap::aot_methods_found = 0; 605 606 void AOTCodeHeap::print_statistics() { 607 tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found); 608 tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss); 609 } 610 #endif 611 612 Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) { 613 int method_name_len = Bytes::get_Java_u2((address)method_name); 614 method_name += 2; 615 const char* signature_name = method_name + method_name_len; 616 int signature_name_len = Bytes::get_Java_u2((address)signature_name); 617 signature_name += 2; 618 // The class should have been loaded so the method and signature should already be 619 // in the symbol table. If they're not there, the method doesn't exist. 620 TempNewSymbol name = SymbolTable::probe(method_name, method_name_len); 621 TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len); 622 623 Method* m; 624 if (name == NULL || signature == NULL) { 625 m = NULL; 626 } else if (name == vmSymbols::object_initializer_name() || 627 name == vmSymbols::class_initializer_name()) { 628 // Never search superclasses for constructors 629 if (klass->is_instance_klass()) { 630 m = InstanceKlass::cast(klass)->find_method(name, signature); 631 } else { 632 m = NULL; 633 } 634 } else { 635 m = klass->lookup_method(name, signature); 636 if (m == NULL && klass->is_instance_klass()) { 637 m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature); 638 } 639 } 640 if (m == NULL) { 641 // Fatal error because we assume classes and methods should not be changed since aot compilation. 642 const char* klass_name = klass->external_name(); 643 int klass_len = (int)strlen(klass_name); 644 char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1); 645 memcpy(meta_name, klass_name, klass_len); 646 meta_name[klass_len] = '.'; 647 memcpy(&meta_name[klass_len + 1], method_name, method_name_len); 648 memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len); 649 meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0'; 650 Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name); 651 java_lang_Throwable::print(exception(), tty); 652 tty->cr(); 653 java_lang_Throwable::print_stack_trace(exception, tty); 654 tty->cr(); 655 fatal("Failed to find method '%s'", meta_name); 656 } 657 NOT_PRODUCT( aot_methods_found++; ) 658 return m; 659 } 660 661 AOTKlassData* AOTCodeHeap::find_klass(const char *name) { 662 return (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), name); 663 } 664 665 AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) { 666 ResourceMark rm; 667 AOTKlassData* klass_data = find_klass(ik->signature_name()); 668 return klass_data; 669 } 670 671 bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) { 672 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); 673 AOTKlassData* klass_data = find_klass(dependee_ik); 674 if (klass_data == NULL) { 675 return false; // no AOT records for this class - no dependencies 676 } 677 if (!dependee_ik->has_passed_fingerprint_check()) { 678 return false; // different class 679 } 680 681 int methods_offset = klass_data->_dependent_methods_offset; 682 if (methods_offset >= 0) { 683 address methods_cnt_adr = _dependencies + methods_offset; 684 int methods_cnt = *(int*)methods_cnt_adr; 685 int* indexes = (int*)(methods_cnt_adr + 4); 686 for (int i = 0; i < methods_cnt; ++i) { 687 int code_id = indexes[i]; 688 if (_code_to_aot[code_id]._aot == aot) { 689 return true; // found dependent method 690 } 691 } 692 } 693 return false; 694 } 695 696 void AOTCodeHeap::mark_evol_dependent_methods(InstanceKlass* dependee) { 697 AOTKlassData* klass_data = find_klass(dependee); 698 if (klass_data == NULL) { 699 return; // no AOT records for this class - no dependencies 700 } 701 if (!dependee->has_passed_fingerprint_check()) { 702 return; // different class 703 } 704 705 int methods_offset = klass_data->_dependent_methods_offset; 706 if (methods_offset >= 0) { 707 address methods_cnt_adr = _dependencies + methods_offset; 708 int methods_cnt = *(int*)methods_cnt_adr; 709 int* indexes = (int*)(methods_cnt_adr + 4); 710 for (int i = 0; i < methods_cnt; ++i) { 711 int code_id = indexes[i]; 712 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot; 713 if (aot != NULL) { 714 aot->mark_for_deoptimization(false); 715 } 716 } 717 } 718 } 719 720 void AOTCodeHeap::sweep_dependent_methods(int* indexes, int methods_cnt) { 721 int marked = 0; 722 for (int i = 0; i < methods_cnt; ++i) { 723 int code_id = indexes[i]; 724 // Invalidate aot code. 725 if (Atomic::cmpxchg(&_code_to_aot[code_id]._state, not_set, invalid) != not_set) { 726 if (_code_to_aot[code_id]._state == in_use) { 727 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot; 728 assert(aot != NULL, "aot should be set"); 729 if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs. 730 aot->mark_for_deoptimization(false); 731 marked++; 732 } 733 } 734 } 735 } 736 if (marked > 0) { 737 Deoptimization::deoptimize_all_marked(); 738 } 739 } 740 741 void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) { 742 // Make dependent methods non_entrant forever. 743 int methods_offset = klass_data->_dependent_methods_offset; 744 if (methods_offset >= 0) { 745 address methods_cnt_adr = _dependencies + methods_offset; 746 int methods_cnt = *(int*)methods_cnt_adr; 747 int* indexes = (int*)(methods_cnt_adr + 4); 748 sweep_dependent_methods(indexes, methods_cnt); 749 } 750 } 751 752 void AOTCodeHeap::sweep_dependent_methods(InstanceKlass* ik) { 753 AOTKlassData* klass_data = find_klass(ik); 754 vmassert(klass_data != NULL, "dependency data missing"); 755 sweep_dependent_methods(klass_data); 756 } 757 758 void AOTCodeHeap::sweep_method(AOTCompiledMethod *aot) { 759 int indexes[] = {aot->method_index()}; 760 sweep_dependent_methods(indexes, 1); 761 vmassert(aot->method()->code() != aot TIERED_ONLY( && aot->method()->aot_code() == NULL), "method still active"); 762 } 763 764 765 bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) { 766 ResourceMark rm; 767 768 NOT_PRODUCT( klasses_seen++; ) 769 770 // AOT does not support custom class loaders. 771 ClassLoaderData* cld = ik->class_loader_data(); 772 if (!cld->is_builtin_class_loader_data()) { 773 log_trace(aot, class, load)("skip class %s for custom classloader %s (%p) tid=" INTPTR_FORMAT, 774 ik->internal_name(), cld->loader_name(), cld, p2i(thread)); 775 return false; 776 } 777 778 AOTKlassData* klass_data = find_klass(ik); 779 if (klass_data == NULL) { 780 return false; 781 } 782 783 if (!ik->has_passed_fingerprint_check()) { 784 NOT_PRODUCT( aot_klasses_fp_miss++; ) 785 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 786 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 787 _lib->name(), p2i(thread)); 788 sweep_dependent_methods(klass_data); 789 return false; 790 } 791 792 if (ik->has_been_redefined()) { 793 log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT, 794 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 795 _lib->name(), p2i(thread)); 796 sweep_dependent_methods(klass_data); 797 return false; 798 } 799 800 assert(klass_data->_class_id < _class_count, "invalid class id"); 801 AOTClass* aot_class = &_classes[klass_data->_class_id]; 802 ClassLoaderData* aot_cld = aot_class->_classloader; 803 if (aot_cld != NULL && aot_cld != cld) { 804 log_trace(aot, class, load)("class %s in %s already loaded for classloader %s (%p) vs %s (%p) tid=" INTPTR_FORMAT, 805 ik->internal_name(), _lib->name(), aot_cld->loader_name(), aot_cld, cld->loader_name(), cld, p2i(thread)); 806 NOT_PRODUCT( aot_klasses_cl_miss++; ) 807 return false; 808 } 809 810 if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) { 811 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()); 812 sweep_dependent_methods(klass_data); 813 return false; 814 } 815 816 NOT_PRODUCT( aot_klasses_found++; ) 817 818 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)); 819 820 aot_class->_classloader = cld; 821 // Set klass's Resolve (second) got cell. 822 _klasses_got[klass_data->_got_index] = ik; 823 if (ik->is_initialized()) { 824 _klasses_got[klass_data->_got_index - 1] = ik; 825 } 826 827 // Initialize global symbols of the DSO to the corresponding VM symbol values. 828 link_global_lib_symbols(); 829 830 int methods_offset = klass_data->_compiled_methods_offset; 831 if (methods_offset >= 0) { 832 address methods_cnt_adr = _methods_offsets + methods_offset; 833 int methods_cnt = *(int*)methods_cnt_adr; 834 // Collect data about compiled methods 835 AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt); 836 AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4); 837 for (int i = 0; i < methods_cnt; ++i) { 838 AOTMethodOffsets* method_offsets = &methods_offsets[i]; 839 int code_id = method_offsets->_code_id; 840 if (_code_to_aot[code_id]._state == invalid) { 841 continue; // skip AOT methods slots which have been invalidated 842 } 843 AOTMethodData* method_data = &methods_data[i]; 844 const char* aot_name = _metaspace_names + method_offsets->_name_offset; 845 method_data->_name = aot_name; 846 method_data->_code = _code_space + method_offsets->_code_offset; 847 method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset); 848 method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset; 849 method_data->_metadata_size = method_offsets->_metadata_got_size; 850 // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V" 851 int klass_len = Bytes::get_Java_u2((address)aot_name); 852 const char* method_name = aot_name + 2 + klass_len; 853 Method* m = AOTCodeHeap::find_method(ik, thread, method_name); 854 methodHandle mh(thread, m); 855 if (mh->code() != NULL) { // Does it have already compiled code? 856 continue; // Don't overwrite 857 } 858 publish_aot(mh, method_data, code_id); 859 } 860 } 861 return true; 862 } 863 864 AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const { 865 for (int index = start; index < _method_count; index++) { 866 if (_code_to_aot[index]._state != in_use) { 867 continue; // Skip uninitialized entries. 868 } 869 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 870 return aot; 871 } 872 return NULL; 873 } 874 875 void* AOTCodeHeap::first() const { 876 return next_in_use_at(0); 877 } 878 879 void* AOTCodeHeap::next(void* p) const { 880 AOTCompiledMethod *aot = (AOTCompiledMethod *)p; 881 int next_index = aot->method_index() + 1; 882 assert(next_index <= _method_count, ""); 883 if (next_index == _method_count) { 884 return NULL; 885 } 886 return next_in_use_at(next_index); 887 } 888 889 void* AOTCodeHeap::find_start(void* p) const { 890 if (!contains(p)) { 891 return NULL; 892 } 893 size_t offset = pointer_delta(p, low_boundary(), 1); 894 // Use segments table 895 size_t seg_idx = offset / _lib->config()->_codeSegmentSize; 896 if ((int)(_code_segments[seg_idx]) == 0xff) { 897 return NULL; 898 } 899 while (_code_segments[seg_idx] > 0) { 900 seg_idx -= (int)_code_segments[seg_idx]; 901 } 902 int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize; 903 int aot_index = *(int*)(_code_space + code_offset); 904 AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot; 905 assert(aot != NULL, "should find registered aot method"); 906 return aot; 907 } 908 909 AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const { 910 assert(contains(p), "should be here"); 911 return (AOTCompiledMethod *)find_start(p); 912 } 913 914 CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const { 915 return (CodeBlob*)AOTCodeHeap::find_start(start); 916 } 917 918 void AOTCodeHeap::oops_do(OopClosure* f) { 919 for (int i = 0; i < _oop_got_size; i++) { 920 oop* p = &_oop_got[i]; 921 if (*p == NULL) continue; // skip non-oops 922 f->do_oop(p); 923 } 924 for (int index = 0; index < _method_count; index++) { 925 if (_code_to_aot[index]._state != in_use) { 926 continue; // Skip uninitialized entries. 927 } 928 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 929 aot->do_oops(f); 930 } 931 } 932 933 // Scan only klasses_got cells which should have only Klass*, 934 // metadata_got cells are scanned only for alive AOT methods 935 // by AOTCompiledMethod::metadata_do(). 936 void AOTCodeHeap::got_metadata_do(MetadataClosure* f) { 937 for (int i = 1; i < _klasses_got_size; i++) { 938 Metadata** p = &_klasses_got[i]; 939 Metadata* md = *p; 940 if (md == NULL) continue; // skip non-oops 941 if (Metaspace::contains(md)) { 942 f->do_metadata(md); 943 } else { 944 intptr_t meta = (intptr_t)md; 945 fatal("Invalid value in _klasses_got[%d] = " INTPTR_FORMAT, i, meta); 946 } 947 } 948 } 949 950 void AOTCodeHeap::cleanup_inline_caches() { 951 for (int index = 0; index < _method_count; index++) { 952 if (_code_to_aot[index]._state != in_use) { 953 continue; // Skip uninitialized entries. 954 } 955 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 956 aot->cleanup_inline_caches(false); 957 } 958 } 959 960 #ifdef ASSERT 961 int AOTCodeHeap::verify_icholder_relocations() { 962 int count = 0; 963 for (int index = 0; index < _method_count; index++) { 964 if (_code_to_aot[index]._state != in_use) { 965 continue; // Skip uninitialized entries. 966 } 967 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 968 count += aot->verify_icholder_relocations(); 969 } 970 return count; 971 } 972 #endif 973 974 void AOTCodeHeap::metadata_do(MetadataClosure* f) { 975 for (int index = 0; index < _method_count; index++) { 976 if (_code_to_aot[index]._state != in_use) { 977 continue; // Skip uninitialized entries. 978 } 979 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 980 if (aot->_is_alive()) { 981 aot->metadata_do(f); 982 } 983 } 984 // Scan klasses_got cells. 985 got_metadata_do(f); 986 } 987 988 bool AOTCodeHeap::reconcile_dynamic_klass(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Klass *dyno_klass, const char *descriptor1, const char *descriptor2) { 989 const char * const descriptors[2] = {descriptor1, descriptor2}; 990 JavaThread *thread = JavaThread::current(); 991 ResourceMark rm(thread); 992 993 AOTKlassData* holder_data = find_klass(holder); 994 vmassert(holder_data != NULL, "klass %s not found", holder->signature_name()); 995 vmassert(is_dependent_method(holder, caller), "sanity"); 996 997 AOTKlassData* dyno_data = NULL; 998 bool adapter_failed = false; 999 char buf[64]; 1000 int descriptor_index = 0; 1001 // descriptors[0] specific name ("adapter:<method_id>") for matching 1002 // descriptors[1] fall-back name ("adapter") for depdencies 1003 while (descriptor_index < 2) { 1004 const char *descriptor = descriptors[descriptor_index]; 1005 if (descriptor == NULL) { 1006 break; 1007 } 1008 jio_snprintf(buf, sizeof buf, "%s<%d:%d>", descriptor, holder_data->_class_id, index); 1009 dyno_data = find_klass(buf); 1010 if (dyno_data != NULL) { 1011 break; 1012 } 1013 // If match failed then try fall-back for dependencies 1014 ++descriptor_index; 1015 adapter_failed = true; 1016 } 1017 1018 if (dyno_data == NULL && dyno_klass == NULL) { 1019 // all is well, no (appendix) at compile-time, and still none 1020 return true; 1021 } 1022 1023 if (dyno_data == NULL) { 1024 // no (appendix) at build-time, but now there is 1025 sweep_dependent_methods(holder_data); 1026 return false; 1027 } 1028 1029 if (adapter_failed) { 1030 // adapter method mismatch 1031 sweep_dependent_methods(holder_data); 1032 sweep_dependent_methods(dyno_data); 1033 return false; 1034 } 1035 1036 if (dyno_klass == NULL) { 1037 // (appendix) at build-time, none now 1038 sweep_dependent_methods(holder_data); 1039 sweep_dependent_methods(dyno_data); 1040 return false; 1041 } 1042 1043 // TODO: support array appendix object 1044 if (!dyno_klass->is_instance_klass()) { 1045 sweep_dependent_methods(holder_data); 1046 sweep_dependent_methods(dyno_data); 1047 return false; 1048 } 1049 1050 InstanceKlass* dyno = InstanceKlass::cast(dyno_klass); 1051 1052 if (!dyno->is_unsafe_anonymous()) { 1053 if (_klasses_got[dyno_data->_got_index] != dyno) { 1054 // compile-time class different from runtime class, fail and deoptimize 1055 sweep_dependent_methods(holder_data); 1056 sweep_dependent_methods(dyno_data); 1057 return false; 1058 } 1059 1060 if (dyno->is_initialized()) { 1061 _klasses_got[dyno_data->_got_index - 1] = dyno; 1062 } 1063 return true; 1064 } 1065 1066 // TODO: support anonymous supers 1067 if (!dyno->supers_have_passed_fingerprint_checks() || dyno->get_stored_fingerprint() != dyno_data->_fingerprint) { 1068 NOT_PRODUCT( aot_klasses_fp_miss++; ) 1069 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 1070 dyno->internal_name(), dyno->is_shared() ? " (shared)" : "", 1071 _lib->name(), p2i(thread)); 1072 sweep_dependent_methods(holder_data); 1073 sweep_dependent_methods(dyno_data); 1074 return false; 1075 } 1076 1077 _klasses_got[dyno_data->_got_index] = dyno; 1078 if (dyno->is_initialized()) { 1079 _klasses_got[dyno_data->_got_index - 1] = dyno; 1080 } 1081 1082 // TODO: hook up any AOT code 1083 // load_klass_data(dyno_data, thread); 1084 return true; 1085 } 1086 1087 bool AOTCodeHeap::reconcile_dynamic_method(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Method *adapter_method) { 1088 InstanceKlass *adapter_klass = adapter_method->method_holder(); 1089 char buf[64]; 1090 jio_snprintf(buf, sizeof buf, "adapter:%d", adapter_method->method_idnum()); 1091 if (!reconcile_dynamic_klass(caller, holder, index, adapter_klass, buf, "adapter")) { 1092 return false; 1093 } 1094 return true; 1095 } 1096 1097 bool AOTCodeHeap::reconcile_dynamic_invoke(AOTCompiledMethod* caller, InstanceKlass* holder, int index, Method* adapter_method, Klass *appendix_klass) { 1098 if (!reconcile_dynamic_klass(caller, holder, index, appendix_klass, "appendix")) { 1099 return false; 1100 } 1101 1102 if (!reconcile_dynamic_method(caller, holder, index, adapter_method)) { 1103 return false; 1104 } 1105 1106 return true; 1107 }