1 /* 2 * Copyright (c) 2016, 2018, 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 "memory/allocation.inline.hpp" 38 #include "oops/method.inline.hpp" 39 #include "runtime/handles.inline.hpp" 40 #include "runtime/os.hpp" 41 #include "runtime/safepointVerifiers.hpp" 42 #include "runtime/sharedRuntime.hpp" 43 #include "runtime/vm_operations.hpp" 44 45 bool AOTLib::_narrow_oop_shift_initialized = false; 46 int AOTLib::_narrow_oop_shift = 0; 47 int AOTLib::_narrow_klass_shift = 0; 48 49 address AOTLib::load_symbol(const char *name) { 50 address symbol = (address) os::dll_lookup(_dl_handle, name); 51 if (symbol == NULL) { 52 tty->print_cr("Shared file %s error: missing %s", _name, name); 53 vm_exit(1); 54 } 55 return symbol; 56 } 57 58 Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) { 59 AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name); 60 Klass* k = (Klass*)_klasses_got[klass_data->_got_index]; 61 if (k == NULL) { 62 Thread* thread = Thread::current(); 63 k = lookup_klass(klass_name, klass_len, method, thread); 64 // Note, exceptions are cleared. 65 if (k == NULL) { 66 fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name); 67 vm_exit(1); 68 } 69 // Patch now to avoid extra runtime lookup 70 _klasses_got[klass_data->_got_index] = k; 71 if (k->is_instance_klass()) { 72 InstanceKlass* ik = InstanceKlass::cast(k); 73 if (ik->is_initialized()) { 74 _klasses_got[klass_data->_got_index - 1] = ik; 75 } 76 } 77 } 78 return k; 79 } 80 81 Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) { 82 ResourceMark rm(thread); 83 assert(method != NULL, "incorrect call parameter"); 84 methodHandle caller(thread, (Method*)method); 85 86 // Use class loader of aot method. 87 Handle loader(thread, caller->method_holder()->class_loader()); 88 Handle protection_domain(thread, caller->method_holder()->protection_domain()); 89 90 // Ignore wrapping L and ; 91 if (name[0] == 'L') { 92 assert(len > 2, "small name %s", name); 93 name++; 94 len -= 2; 95 } 96 TempNewSymbol sym = SymbolTable::probe(name, len); 97 if (sym == NULL) { 98 log_debug(aot, class, resolve)("Probe failed for AOT class %s", name); 99 return NULL; 100 } 101 Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread); 102 assert(!thread->has_pending_exception(), "should not throw"); 103 104 if (k != NULL) { 105 log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name()); 106 } 107 return k; 108 } 109 110 void AOTLib::handle_config_error(const char* format, ...) { 111 if (PrintAOT) { 112 va_list ap; 113 va_start(ap, format); 114 tty->vprint_cr(format, ap); 115 va_end(ap); 116 } 117 if (UseAOTStrictLoading) { 118 vm_exit(1); 119 } 120 _valid = false; 121 } 122 123 void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) { 124 if (_valid && aot_flag != flag) { 125 handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false")); 126 } 127 } 128 129 void AOTLib::verify_flag(int aot_flag, int flag, const char* name) { 130 if (_valid && aot_flag != flag) { 131 handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag); 132 } 133 } 134 135 void AOTLib::verify_config() { 136 GrowableArray<AOTLib*>* libraries = AOTLoader::libraries(); 137 for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) { 138 if ((*lib)->_config == _config) { 139 handle_config_error("AOT library %s already loaded.", (*lib)->_name); 140 return; 141 } 142 } 143 144 if (_header->_version != AOTHeader::AOT_SHARED_VERSION) { 145 handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION); 146 return; 147 } 148 149 const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2; 150 if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) { 151 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()); 152 return; 153 } 154 155 // Debug VM has different layout of runtime and metadata structures 156 #ifdef ASSERT 157 verify_flag(_config->_debug_VM, true, "Debug VM version"); 158 #else 159 verify_flag(!(_config->_debug_VM), true, "Product VM version"); 160 #endif 161 // Check configuration size 162 verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size"); 163 164 // Check GC 165 CollectedHeap::Name gc = (CollectedHeap::Name)_config->_gc; 166 if (_valid && !GCConfig::is_gc_selected(gc)) { 167 handle_config_error("Shared file %s error: used '%s' is different from current '%s'", _name, GCConfig::hs_err_name(gc), GCConfig::hs_err_name()); 168 } 169 170 // Check flags 171 verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops"); 172 verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers"); 173 verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB"); 174 verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking"); 175 verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes"); 176 verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth"); 177 verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle"); 178 verify_flag(_config->_compactFields, CompactFields, "CompactFields"); 179 verify_flag(_config->_enableContended, EnableContended, "EnableContended"); 180 verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended"); 181 verify_flag(_config->_threadLocalHandshakes, ThreadLocalHandshakes, "ThreadLocalHandshakes"); 182 183 if (!TieredCompilation && _config->_tieredAOT) { 184 handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name); 185 } 186 187 // Shifts are static values which initialized by 0 until java heap initialization. 188 // AOT libs are loaded before heap initialized so shift values are not set. 189 // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded. 190 // Set shifts value based on first AOT library config. 191 if (UseCompressedOops && _valid) { 192 if (!_narrow_oop_shift_initialized) { 193 _narrow_oop_shift = _config->_narrowOopShift; 194 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 195 _narrow_klass_shift = _config->_narrowKlassShift; 196 } 197 _narrow_oop_shift_initialized = true; 198 } else { 199 verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift"); 200 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 201 verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift"); 202 } 203 } 204 } 205 } 206 207 AOTLib::~AOTLib() { 208 os::free((void*) _name); 209 } 210 211 AOTCodeHeap::~AOTCodeHeap() { 212 if (_classes != NULL) { 213 FREE_C_HEAP_ARRAY(AOTClass, _classes); 214 } 215 if (_code_to_aot != NULL) { 216 FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot); 217 } 218 } 219 220 AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) { 221 _name = (const char*) os::strdup(name); 222 223 // Verify that VM runs with the same parameters as AOT tool. 224 _config = (AOTConfiguration*) load_symbol("A.config"); 225 _header = (AOTHeader*) load_symbol("A.header"); 226 227 verify_config(); 228 229 if (!_valid && PrintAOT) { 230 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 231 tty->print_cr("%4d skipped %s aot library", _dso_id, _name); 232 } 233 } 234 235 AOTCodeHeap::AOTCodeHeap(AOTLib* lib) : 236 CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) { 237 assert(_lib->is_valid(), "invalid library"); 238 239 _lib_symbols_initialized = false; 240 _aot_id = 0; 241 242 _class_count = _lib->header()->_class_count; 243 _method_count = _lib->header()->_method_count; 244 245 // Collect metaspace info: names -> address in .got section 246 _metaspace_names = (const char*) _lib->load_symbol("A.meta.names"); 247 _method_metadata = (address) _lib->load_symbol("A.meth.metadata"); 248 _methods_offsets = (address) _lib->load_symbol("A.meth.offsets"); 249 _klasses_offsets = (address) _lib->load_symbol("A.kls.offsets"); 250 _dependencies = (address) _lib->load_symbol("A.kls.dependencies"); 251 _code_space = (address) _lib->load_symbol("A.text"); 252 253 // First cell is number of elements. 254 _klasses_got = (Metadata**) _lib->load_symbol("A.kls.got"); 255 _klasses_got_size = _lib->header()->_klasses_got_size; 256 257 _metadata_got = (Metadata**) _lib->load_symbol("A.meta.got"); 258 _metadata_got_size = _lib->header()->_metadata_got_size; 259 260 _oop_got = (oop*) _lib->load_symbol("A.oop.got"); 261 _oop_got_size = _lib->header()->_oop_got_size; 262 263 // Collect stubs info 264 _stubs_offsets = (int*) _lib->load_symbol("A.stubs.offsets"); 265 266 // code segments table 267 _code_segments = (address) _lib->load_symbol("A.code.segments"); 268 269 // method state 270 _method_state = (jlong*) _lib->load_symbol("A.meth.state"); 271 272 // Create a table for mapping classes 273 _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode); 274 memset(_classes, 0, _class_count * sizeof(AOTClass)); 275 276 // Create table for searching AOTCompiledMethod based on pc. 277 _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode); 278 memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod)); 279 280 _memory.set_low_boundary((char *)_code_space); 281 _memory.set_high_boundary((char *)_code_space); 282 _memory.set_low((char *)_code_space); 283 _memory.set_high((char *)_code_space); 284 285 _segmap.set_low_boundary((char *)_code_segments); 286 _segmap.set_low((char *)_code_segments); 287 288 _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize); 289 290 // Register aot stubs 291 register_stubs(); 292 293 if (PrintAOT || (PrintCompilation && PrintAOT)) { 294 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 295 tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name()); 296 } 297 } 298 299 void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) { 300 // The method may be explicitly excluded by the user. 301 // Or Interpreter uses an intrinsic for this method. 302 // Or method has breakpoints. 303 if (CompilerOracle::should_exclude(mh) || 304 !AbstractInterpreter::can_be_compiled(mh) || 305 (mh->number_of_breakpoints() > 0)) { 306 return; 307 } 308 // Make sure no break points were set in the method in case of a safepoint 309 // in the following code until aot code is registered. 310 NoSafepointVerifier nsv; 311 312 address code = method_data->_code; 313 const char* name = method_data->_name; 314 aot_metadata* meta = method_data->_meta; 315 316 if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) { 317 // Switch off NoSafepointVerifier because log_info() may cause safepoint 318 // and it is fine because aot code will not be registered here. 319 PauseNoSafepointVerifier pnsv(&nsv); 320 321 // When the AOT compiler compiles something big we fail to generate metadata 322 // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end. 323 // In all successful cases we always have 2 entries of scope pcs. 324 log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string()); 325 _code_to_aot[code_id]._state = invalid; 326 return; 327 } 328 329 jlong* state_adr = &_method_state[code_id]; 330 address metadata_table = method_data->_metadata_table; 331 int metadata_size = method_data->_metadata_size; 332 assert(code_id < _method_count, "sanity"); 333 _aot_id++; 334 335 #ifdef ASSERT 336 if (_aot_id > CIStop || _aot_id < CIStart) { 337 // Skip compilation 338 return; 339 } 340 #endif 341 // Check one more time. 342 if (_code_to_aot[code_id]._state == invalid) { 343 return; 344 } 345 AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id); 346 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 347 _code_to_aot[code_id]._aot = aot; // Should set this first 348 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) { 349 _code_to_aot[code_id]._aot = NULL; // Clean 350 } else { // success 351 // Publish method 352 #ifdef TIERED 353 mh->set_aot_code(aot); 354 #endif 355 Method::set_code(mh, aot); 356 if (PrintAOT || (PrintCompilation && PrintAOT)) { 357 PauseNoSafepointVerifier pnsv(&nsv); // aot code is registered already 358 aot->print_on(tty, NULL); 359 } 360 // Publish oop only after we are visible to CompiledMethodIterator 361 aot->set_oop(mh()->method_holder()->klass_holder()); 362 } 363 } 364 365 void AOTCodeHeap::link_primitive_array_klasses() { 366 ResourceMark rm; 367 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) { 368 BasicType t = (BasicType)i; 369 if (is_java_primitive(t)) { 370 const Klass* arr_klass = Universe::typeArrayKlassObj(t); 371 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name()); 372 if (klass_data != NULL) { 373 // Set both GOT cells, resolved and initialized klass pointers. 374 // _got_index points to second cell - resolved klass pointer. 375 _klasses_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized 376 _klasses_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved 377 if (PrintAOT) { 378 tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name()); 379 } 380 } 381 } 382 } 383 } 384 385 void AOTCodeHeap::register_stubs() { 386 int stubs_count = _stubs_offsets[0]; // contains number 387 _stubs_offsets++; 388 AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets; 389 for (int i = 0; i < stubs_count; ++i) { 390 const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset; 391 address entry = _code_space + stub_offsets[i]._code_offset; 392 aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset); 393 address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset; 394 int metadata_size = stub_offsets[i]._metadata_got_size; 395 int code_id = stub_offsets[i]._code_id; 396 assert(code_id < _method_count, "sanity"); 397 jlong* state_adr = &_method_state[code_id]; 398 int len = build_u2_from((address)stub_name); 399 stub_name += 2; 400 char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode); 401 if (full_name == NULL) { // No memory? 402 break; 403 } 404 memcpy(full_name, "AOT ", 4); 405 memcpy(full_name+4, stub_name, len); 406 full_name[len+4] = 0; 407 guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name); 408 AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i); 409 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 410 _code_to_aot[code_id]._aot = aot; 411 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) { 412 fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state); 413 } 414 // Adjust code buffer boundaries only for stubs because they are last in the buffer. 415 adjust_boundaries(aot); 416 if (PrintAOT && Verbose) { 417 aot->print_on(tty, NULL); 418 } 419 } 420 } 421 422 #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \ 423 { \ 424 AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \ 425 /* Check for a lookup error */ \ 426 guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \ 427 *adr = (AOTSYMTYPE) VMSYMVAL; \ 428 } 429 430 void AOTCodeHeap::link_graal_runtime_symbols() { 431 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter); 432 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit); 433 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object); 434 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf); 435 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive); 436 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance); 437 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array); 438 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array); 439 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array); 440 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object); 441 #if INCLUDE_G1GC 442 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre); 443 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post); 444 #endif 445 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code); 446 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance); 447 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_thread_is_interrupted", address, JVMCIRuntime::thread_is_interrupted); 448 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc); 449 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int); 450 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception); 451 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception); 452 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception); 453 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message); 454 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error); 455 } 456 457 void AOTCodeHeap::link_shared_runtime_symbols() { 458 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub()); 459 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub()); 460 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub()); 461 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack()); 462 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap()); 463 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub()); 464 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub()); 465 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address); 466 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer); 467 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notify", address, JVMCIRuntime::object_notify); 468 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notifyAll", address, JVMCIRuntime::object_notifyAll); 469 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end); 470 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_enable_stack_reserved_zone", address, SharedRuntime::enable_stack_reserved_zone); 471 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_dynamic_invoke", address, CompilerRuntime::resolve_dynamic_invoke); 472 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol); 473 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol); 474 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters); 475 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol); 476 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event); 477 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event); 478 479 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow); 480 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp); 481 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos); 482 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin); 483 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan); 484 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog); 485 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10); 486 } 487 488 void AOTCodeHeap::link_stub_routines_symbols() { 489 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy); 490 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy); 491 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy); 492 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy); 493 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy); 494 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit); 495 496 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy); 497 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy); 498 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy); 499 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy); 500 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy); 501 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit); 502 503 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy); 504 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy); 505 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy); 506 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy); 507 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy); 508 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit); 509 510 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy); 511 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy); 512 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy); 513 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy); 514 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy); 515 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit); 516 517 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_unsafe_arraycopy", address, StubRoutines::_unsafe_arraycopy); 518 519 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy); 520 521 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_generic_arraycopy", address, StubRoutines::_generic_arraycopy); 522 523 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock); 524 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock); 525 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt); 526 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt); 527 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32); 528 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr); 529 530 531 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress); 532 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB); 533 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress); 534 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB); 535 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress); 536 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB); 537 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen); 538 539 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt); 540 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks); 541 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_base64_encodeBlock", address, StubRoutines::_base64_encodeBlock); 542 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr); 543 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C); 544 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32); 545 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen); 546 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd); 547 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply); 548 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare); 549 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch); 550 551 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry); 552 553 } 554 555 void AOTCodeHeap::link_os_symbols() { 556 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis); 557 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos); 558 } 559 560 /* 561 * Link any global symbols in precompiled DSO with dlopen() _dl_handle 562 * dso_handle. 563 */ 564 565 void AOTCodeHeap::link_global_lib_symbols() { 566 if (!_lib_symbols_initialized) { 567 _lib_symbols_initialized = true; 568 569 CollectedHeap* heap = Universe::heap(); 570 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, (BarrierSet::barrier_set()->is_a(BarrierSet::CardTableBarrierSet) ? ci_card_table_address() : NULL)); 571 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL)); 572 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL)); 573 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page()); 574 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, Universe::narrow_klass_base()); 575 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, Universe::narrow_oop_base()); 576 #if INCLUDE_G1GC 577 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes); 578 #endif 579 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc()); 580 link_shared_runtime_symbols(); 581 link_stub_routines_symbols(); 582 link_os_symbols(); 583 link_graal_runtime_symbols(); 584 585 // Link primitive array klasses. 586 link_primitive_array_klasses(); 587 } 588 } 589 590 #ifndef PRODUCT 591 int AOTCodeHeap::klasses_seen = 0; 592 int AOTCodeHeap::aot_klasses_found = 0; 593 int AOTCodeHeap::aot_klasses_fp_miss = 0; 594 int AOTCodeHeap::aot_klasses_cl_miss = 0; 595 int AOTCodeHeap::aot_methods_found = 0; 596 597 void AOTCodeHeap::print_statistics() { 598 tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found); 599 tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss); 600 } 601 #endif 602 603 Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) { 604 int method_name_len = build_u2_from((address)method_name); 605 method_name += 2; 606 const char* signature_name = method_name + method_name_len; 607 int signature_name_len = build_u2_from((address)signature_name); 608 signature_name += 2; 609 // The class should have been loaded so the method and signature should already be 610 // in the symbol table. If they're not there, the method doesn't exist. 611 TempNewSymbol name = SymbolTable::probe(method_name, method_name_len); 612 TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len); 613 614 Method* m; 615 if (name == NULL || signature == NULL) { 616 m = NULL; 617 } else if (name == vmSymbols::object_initializer_name() || 618 name == vmSymbols::class_initializer_name()) { 619 // Never search superclasses for constructors 620 if (klass->is_instance_klass()) { 621 m = InstanceKlass::cast(klass)->find_method(name, signature); 622 } else { 623 m = NULL; 624 } 625 } else { 626 m = klass->lookup_method(name, signature); 627 if (m == NULL && klass->is_instance_klass()) { 628 m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature); 629 } 630 } 631 if (m == NULL) { 632 // Fatal error because we assume classes and methods should not be changed since aot compilation. 633 const char* klass_name = klass->external_name(); 634 int klass_len = (int)strlen(klass_name); 635 char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1); 636 memcpy(meta_name, klass_name, klass_len); 637 meta_name[klass_len] = '.'; 638 memcpy(&meta_name[klass_len + 1], method_name, method_name_len); 639 memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len); 640 meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0'; 641 Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name); 642 java_lang_Throwable::print(exception(), tty); 643 tty->cr(); 644 java_lang_Throwable::print_stack_trace(exception, tty); 645 tty->cr(); 646 fatal("Failed to find method '%s'", meta_name); 647 } 648 NOT_PRODUCT( aot_methods_found++; ) 649 return m; 650 } 651 652 AOTKlassData* AOTCodeHeap::find_klass(const char *name) { 653 return (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), name); 654 } 655 656 AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) { 657 ResourceMark rm; 658 AOTKlassData* klass_data = find_klass(ik->signature_name()); 659 return klass_data; 660 } 661 662 bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) { 663 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); 664 AOTKlassData* klass_data = find_klass(dependee_ik); 665 if (klass_data == NULL) { 666 return false; // no AOT records for this class - no dependencies 667 } 668 if (!dependee_ik->has_passed_fingerprint_check()) { 669 return false; // different class 670 } 671 672 int methods_offset = klass_data->_dependent_methods_offset; 673 if (methods_offset >= 0) { 674 address methods_cnt_adr = _dependencies + methods_offset; 675 int methods_cnt = *(int*)methods_cnt_adr; 676 int* indexes = (int*)(methods_cnt_adr + 4); 677 for (int i = 0; i < methods_cnt; ++i) { 678 int code_id = indexes[i]; 679 if (_code_to_aot[code_id]._aot == aot) { 680 return true; // found dependent method 681 } 682 } 683 } 684 return false; 685 } 686 687 void AOTCodeHeap::sweep_dependent_methods(int* indexes, int methods_cnt) { 688 int marked = 0; 689 for (int i = 0; i < methods_cnt; ++i) { 690 int code_id = indexes[i]; 691 // Invalidate aot code. 692 if (Atomic::cmpxchg(invalid, &_code_to_aot[code_id]._state, not_set) != not_set) { 693 if (_code_to_aot[code_id]._state == in_use) { 694 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot; 695 assert(aot != NULL, "aot should be set"); 696 if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs. 697 aot->mark_for_deoptimization(false); 698 marked++; 699 } 700 } 701 } 702 } 703 if (marked > 0) { 704 VM_Deoptimize op; 705 VMThread::execute(&op); 706 } 707 } 708 709 void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) { 710 // Make dependent methods non_entrant forever. 711 int methods_offset = klass_data->_dependent_methods_offset; 712 if (methods_offset >= 0) { 713 address methods_cnt_adr = _dependencies + methods_offset; 714 int methods_cnt = *(int*)methods_cnt_adr; 715 int* indexes = (int*)(methods_cnt_adr + 4); 716 sweep_dependent_methods(indexes, methods_cnt); 717 } 718 } 719 720 void AOTCodeHeap::sweep_dependent_methods(InstanceKlass* ik) { 721 AOTKlassData* klass_data = find_klass(ik); 722 vmassert(klass_data != NULL, "dependency data missing"); 723 sweep_dependent_methods(klass_data); 724 } 725 726 void AOTCodeHeap::sweep_method(AOTCompiledMethod *aot) { 727 int indexes[] = {aot->method_index()}; 728 sweep_dependent_methods(indexes, 1); 729 vmassert(aot->method()->code() != aot TIERED_ONLY( && aot->method()->aot_code() == NULL), "method still active"); 730 } 731 732 733 bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) { 734 ResourceMark rm; 735 736 NOT_PRODUCT( klasses_seen++; ) 737 738 // AOT does not support custom class loaders. 739 ClassLoaderData* cld = ik->class_loader_data(); 740 if (!cld->is_builtin_class_loader_data()) { 741 log_trace(aot, class, load)("skip class %s for custom classloader %s (%p) tid=" INTPTR_FORMAT, 742 ik->internal_name(), cld->loader_name(), cld, p2i(thread)); 743 return false; 744 } 745 746 AOTKlassData* klass_data = find_klass(ik); 747 if (klass_data == NULL) { 748 return false; 749 } 750 751 if (!ik->has_passed_fingerprint_check()) { 752 NOT_PRODUCT( aot_klasses_fp_miss++; ) 753 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 754 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 755 _lib->name(), p2i(thread)); 756 sweep_dependent_methods(klass_data); 757 return false; 758 } 759 760 if (ik->has_been_redefined()) { 761 log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT, 762 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 763 _lib->name(), p2i(thread)); 764 sweep_dependent_methods(klass_data); 765 return false; 766 } 767 768 assert(klass_data->_class_id < _class_count, "invalid class id"); 769 AOTClass* aot_class = &_classes[klass_data->_class_id]; 770 ClassLoaderData* aot_cld = aot_class->_classloader; 771 if (aot_cld != NULL && aot_cld != cld) { 772 log_trace(aot, class, load)("class %s in %s already loaded for classloader %s (%p) vs %s (%p) tid=" INTPTR_FORMAT, 773 ik->internal_name(), _lib->name(), aot_cld->loader_name(), aot_cld, cld->loader_name(), cld, p2i(thread)); 774 NOT_PRODUCT( aot_klasses_cl_miss++; ) 775 return false; 776 } 777 778 if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) { 779 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()); 780 sweep_dependent_methods(klass_data); 781 return false; 782 } 783 784 NOT_PRODUCT( aot_klasses_found++; ) 785 786 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)); 787 788 aot_class->_classloader = cld; 789 // Set klass's Resolve (second) got cell. 790 _klasses_got[klass_data->_got_index] = ik; 791 if (ik->is_initialized()) { 792 _klasses_got[klass_data->_got_index - 1] = ik; 793 } 794 795 // Initialize global symbols of the DSO to the corresponding VM symbol values. 796 link_global_lib_symbols(); 797 798 int methods_offset = klass_data->_compiled_methods_offset; 799 if (methods_offset >= 0) { 800 address methods_cnt_adr = _methods_offsets + methods_offset; 801 int methods_cnt = *(int*)methods_cnt_adr; 802 // Collect data about compiled methods 803 AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt); 804 AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4); 805 for (int i = 0; i < methods_cnt; ++i) { 806 AOTMethodOffsets* method_offsets = &methods_offsets[i]; 807 int code_id = method_offsets->_code_id; 808 if (_code_to_aot[code_id]._state == invalid) { 809 continue; // skip AOT methods slots which have been invalidated 810 } 811 AOTMethodData* method_data = &methods_data[i]; 812 const char* aot_name = _metaspace_names + method_offsets->_name_offset; 813 method_data->_name = aot_name; 814 method_data->_code = _code_space + method_offsets->_code_offset; 815 method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset); 816 method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset; 817 method_data->_metadata_size = method_offsets->_metadata_got_size; 818 // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V" 819 int klass_len = build_u2_from((address)aot_name); 820 const char* method_name = aot_name + 2 + klass_len; 821 Method* m = AOTCodeHeap::find_method(ik, thread, method_name); 822 methodHandle mh(thread, m); 823 if (mh->code() != NULL) { // Does it have already compiled code? 824 continue; // Don't overwrite 825 } 826 publish_aot(mh, method_data, code_id); 827 } 828 } 829 return true; 830 } 831 832 AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const { 833 for (int index = start; index < _method_count; index++) { 834 if (_code_to_aot[index]._state != in_use) { 835 continue; // Skip uninitialized entries. 836 } 837 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 838 return aot; 839 } 840 return NULL; 841 } 842 843 void* AOTCodeHeap::first() const { 844 return next_in_use_at(0); 845 } 846 847 void* AOTCodeHeap::next(void* p) const { 848 AOTCompiledMethod *aot = (AOTCompiledMethod *)p; 849 int next_index = aot->method_index() + 1; 850 assert(next_index <= _method_count, ""); 851 if (next_index == _method_count) { 852 return NULL; 853 } 854 return next_in_use_at(next_index); 855 } 856 857 void* AOTCodeHeap::find_start(void* p) const { 858 if (!contains(p)) { 859 return NULL; 860 } 861 size_t offset = pointer_delta(p, low_boundary(), 1); 862 // Use segments table 863 size_t seg_idx = offset / _lib->config()->_codeSegmentSize; 864 if ((int)(_code_segments[seg_idx]) == 0xff) { 865 return NULL; 866 } 867 while (_code_segments[seg_idx] > 0) { 868 seg_idx -= (int)_code_segments[seg_idx]; 869 } 870 int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize; 871 int aot_index = *(int*)(_code_space + code_offset); 872 AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot; 873 assert(aot != NULL, "should find registered aot method"); 874 return aot; 875 } 876 877 AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const { 878 assert(contains(p), "should be here"); 879 return (AOTCompiledMethod *)find_start(p); 880 } 881 882 CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const { 883 return (CodeBlob*)AOTCodeHeap::find_start(start); 884 } 885 886 void AOTCodeHeap::oops_do(OopClosure* f) { 887 for (int i = 0; i < _oop_got_size; i++) { 888 oop* p = &_oop_got[i]; 889 if (*p == NULL) continue; // skip non-oops 890 f->do_oop(p); 891 } 892 for (int index = 0; index < _method_count; index++) { 893 if (_code_to_aot[index]._state != in_use) { 894 continue; // Skip uninitialized entries. 895 } 896 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 897 aot->do_oops(f); 898 } 899 } 900 901 // Scan only klasses_got cells which should have only Klass*, 902 // metadata_got cells are scanned only for alive AOT methods 903 // by AOTCompiledMethod::metadata_do(). 904 void AOTCodeHeap::got_metadata_do(void f(Metadata*)) { 905 for (int i = 1; i < _klasses_got_size; i++) { 906 Metadata** p = &_klasses_got[i]; 907 Metadata* md = *p; 908 if (md == NULL) continue; // skip non-oops 909 if (Metaspace::contains(md)) { 910 f(md); 911 } else { 912 intptr_t meta = (intptr_t)md; 913 fatal("Invalid value in _klasses_got[%d] = " INTPTR_FORMAT, i, meta); 914 } 915 } 916 } 917 918 void AOTCodeHeap::cleanup_inline_caches() { 919 for (int index = 0; index < _method_count; index++) { 920 if (_code_to_aot[index]._state != in_use) { 921 continue; // Skip uninitialized entries. 922 } 923 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 924 aot->cleanup_inline_caches(); 925 } 926 } 927 928 #ifdef ASSERT 929 int AOTCodeHeap::verify_icholder_relocations() { 930 int count = 0; 931 for (int index = 0; index < _method_count; index++) { 932 if (_code_to_aot[index]._state != in_use) { 933 continue; // Skip uninitialized entries. 934 } 935 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 936 count += aot->verify_icholder_relocations(); 937 } 938 return count; 939 } 940 #endif 941 942 void AOTCodeHeap::metadata_do(void f(Metadata*)) { 943 for (int index = 0; index < _method_count; index++) { 944 if (_code_to_aot[index]._state != in_use) { 945 continue; // Skip uninitialized entries. 946 } 947 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 948 if (aot->_is_alive()) { 949 aot->metadata_do(f); 950 } 951 } 952 // Scan klasses_got cells. 953 got_metadata_do(f); 954 } 955 956 bool AOTCodeHeap::reconcile_dynamic_klass(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Klass *dyno_klass, const char *descriptor1, const char *descriptor2) { 957 const char * const descriptors[2] = {descriptor1, descriptor2}; 958 JavaThread *thread = JavaThread::current(); 959 ResourceMark rm(thread); 960 961 AOTKlassData* holder_data = find_klass(holder); 962 vmassert(holder_data != NULL, "klass %s not found", holder->signature_name()); 963 vmassert(is_dependent_method(holder, caller), "sanity"); 964 965 AOTKlassData* dyno_data = NULL; 966 bool adapter_failed = false; 967 char buf[64]; 968 int descriptor_index = 0; 969 // descriptors[0] specific name ("adapter:<method_id>") for matching 970 // descriptors[1] fall-back name ("adapter") for depdencies 971 while (descriptor_index < 2) { 972 const char *descriptor = descriptors[descriptor_index]; 973 if (descriptor == NULL) { 974 break; 975 } 976 jio_snprintf(buf, sizeof buf, "%s<%d:%d>", descriptor, holder_data->_class_id, index); 977 dyno_data = find_klass(buf); 978 if (dyno_data != NULL) { 979 break; 980 } 981 // If match failed then try fall-back for dependencies 982 ++descriptor_index; 983 adapter_failed = true; 984 } 985 986 if (dyno_data == NULL && dyno_klass == NULL) { 987 // all is well, no (appendix) at compile-time, and still none 988 return true; 989 } 990 991 if (dyno_data == NULL) { 992 // no (appendix) at build-time, but now there is 993 sweep_dependent_methods(holder_data); 994 return false; 995 } 996 997 if (adapter_failed) { 998 // adapter method mismatch 999 sweep_dependent_methods(holder_data); 1000 sweep_dependent_methods(dyno_data); 1001 return false; 1002 } 1003 1004 if (dyno_klass == NULL) { 1005 // (appendix) at build-time, none now 1006 sweep_dependent_methods(holder_data); 1007 sweep_dependent_methods(dyno_data); 1008 return false; 1009 } 1010 1011 // TODO: support array appendix object 1012 if (!dyno_klass->is_instance_klass()) { 1013 sweep_dependent_methods(holder_data); 1014 sweep_dependent_methods(dyno_data); 1015 return false; 1016 } 1017 1018 InstanceKlass* dyno = InstanceKlass::cast(dyno_klass); 1019 1020 if (!dyno->is_unsafe_anonymous()) { 1021 if (_klasses_got[dyno_data->_got_index] != dyno) { 1022 // compile-time class different from runtime class, fail and deoptimize 1023 sweep_dependent_methods(holder_data); 1024 sweep_dependent_methods(dyno_data); 1025 return false; 1026 } 1027 1028 if (dyno->is_initialized()) { 1029 _klasses_got[dyno_data->_got_index - 1] = dyno; 1030 } 1031 return true; 1032 } 1033 1034 // TODO: support anonymous supers 1035 if (!dyno->supers_have_passed_fingerprint_checks() || dyno->get_stored_fingerprint() != dyno_data->_fingerprint) { 1036 NOT_PRODUCT( aot_klasses_fp_miss++; ) 1037 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 1038 dyno->internal_name(), dyno->is_shared() ? " (shared)" : "", 1039 _lib->name(), p2i(thread)); 1040 sweep_dependent_methods(holder_data); 1041 sweep_dependent_methods(dyno_data); 1042 return false; 1043 } 1044 1045 _klasses_got[dyno_data->_got_index] = dyno; 1046 if (dyno->is_initialized()) { 1047 _klasses_got[dyno_data->_got_index - 1] = dyno; 1048 } 1049 1050 // TODO: hook up any AOT code 1051 // load_klass_data(dyno_data, thread); 1052 return true; 1053 } 1054 1055 bool AOTCodeHeap::reconcile_dynamic_method(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Method *adapter_method) { 1056 InstanceKlass *adapter_klass = adapter_method->method_holder(); 1057 char buf[64]; 1058 jio_snprintf(buf, sizeof buf, "adapter:%d", adapter_method->method_idnum()); 1059 if (!reconcile_dynamic_klass(caller, holder, index, adapter_klass, buf, "adapter")) { 1060 return false; 1061 } 1062 return true; 1063 } 1064 1065 bool AOTCodeHeap::reconcile_dynamic_invoke(AOTCompiledMethod* caller, InstanceKlass* holder, int index, Method* adapter_method, Klass *appendix_klass) { 1066 if (!reconcile_dynamic_klass(caller, holder, index, appendix_klass, "appendix")) { 1067 return false; 1068 } 1069 1070 if (!reconcile_dynamic_method(caller, holder, index, adapter_method)) { 1071 return false; 1072 } 1073 1074 return true; 1075 }