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/g1/heapRegion.hpp" 33 #include "gc/shared/gcLocker.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/sharedRuntime.hpp" 42 #include "runtime/vm_operations.hpp" 43 44 bool AOTLib::_narrow_oop_shift_initialized = false; 45 int AOTLib::_narrow_oop_shift = 0; 46 int AOTLib::_narrow_klass_shift = 0; 47 48 address AOTLib::load_symbol(const char *name) { 49 address symbol = (address) os::dll_lookup(_dl_handle, name); 50 if (symbol == NULL) { 51 tty->print_cr("Shared file %s error: missing %s", _name, name); 52 vm_exit(1); 53 } 54 return symbol; 55 } 56 57 Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) { 58 AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name); 59 Klass* k = (Klass*)_klasses_got[klass_data->_got_index]; 60 if (k == NULL) { 61 Thread* thread = Thread::current(); 62 k = lookup_klass(klass_name, klass_len, method, thread); 63 // Note, exceptions are cleared. 64 if (k == NULL) { 65 fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name); 66 vm_exit(1); 67 } 68 // Patch now to avoid extra runtime lookup 69 _klasses_got[klass_data->_got_index] = k; 70 if (k->is_instance_klass()) { 71 InstanceKlass* ik = InstanceKlass::cast(k); 72 if (ik->is_initialized()) { 73 _klasses_got[klass_data->_got_index - 1] = ik; 74 } 75 } 76 } 77 return k; 78 } 79 80 Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) { 81 ResourceMark rm(thread); 82 assert(method != NULL, "incorrect call parameter"); 83 methodHandle caller(thread, (Method*)method); 84 85 // Use class loader of aot method. 86 Handle loader(thread, caller->method_holder()->class_loader()); 87 Handle protection_domain(thread, caller->method_holder()->protection_domain()); 88 89 // Ignore wrapping L and ; 90 if (name[0] == 'L') { 91 assert(len > 2, "small name %s", name); 92 name++; 93 len -= 2; 94 } 95 TempNewSymbol sym = SymbolTable::probe(name, len); 96 if (sym == NULL) { 97 log_debug(aot, class, resolve)("Probe failed for AOT class %s", name); 98 return NULL; 99 } 100 Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread); 101 assert(!thread->has_pending_exception(), "should not throw"); 102 103 if (k != NULL) { 104 log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name()); 105 } 106 return k; 107 } 108 109 void AOTLib::handle_config_error(const char* format, ...) { 110 if (PrintAOT) { 111 va_list ap; 112 va_start(ap, format); 113 tty->vprint_cr(format, ap); 114 va_end(ap); 115 } 116 if (UseAOTStrictLoading) { 117 vm_exit(1); 118 } 119 _valid = false; 120 } 121 122 void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) { 123 if (_valid && aot_flag != flag) { 124 handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false")); 125 } 126 } 127 128 void AOTLib::verify_flag(int aot_flag, int flag, const char* name) { 129 if (_valid && aot_flag != flag) { 130 handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag); 131 } 132 } 133 134 void AOTLib::verify_config() { 135 GrowableArray<AOTLib*>* libraries = AOTLoader::libraries(); 136 for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) { 137 if ((*lib)->_config == _config) { 138 handle_config_error("AOT library %s already loaded.", (*lib)->_name); 139 return; 140 } 141 } 142 143 if (_header->_version != AOTHeader::AOT_SHARED_VERSION) { 144 handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION); 145 return; 146 } 147 148 const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2; 149 if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) { 150 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()); 151 return; 152 } 153 154 // Debug VM has different layout of runtime and metadata structures 155 #ifdef ASSERT 156 verify_flag(_config->_debug_VM, true, "Debug VM version"); 157 #else 158 verify_flag(!(_config->_debug_VM), true, "Product VM version"); 159 #endif 160 // Check configuration size 161 verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size"); 162 163 // Check flags 164 verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops"); 165 verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers"); 166 verify_flag(_config->_useG1GC, UseG1GC, "UseG1GC"); 167 verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB"); 168 verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking"); 169 verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes"); 170 verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth"); 171 verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle"); 172 verify_flag(_config->_compactFields, CompactFields, "CompactFields"); 173 verify_flag(_config->_enableContended, EnableContended, "EnableContended"); 174 verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended"); 175 verify_flag(_config->_threadLocalHandshakes, ThreadLocalHandshakes, "ThreadLocalHandshakes"); 176 177 if (!TieredCompilation && _config->_tieredAOT) { 178 handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name); 179 } 180 181 // Shifts are static values which initialized by 0 until java heap initialization. 182 // AOT libs are loaded before heap initialized so shift values are not set. 183 // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded. 184 // Set shifts value based on first AOT library config. 185 if (UseCompressedOops && _valid) { 186 if (!_narrow_oop_shift_initialized) { 187 _narrow_oop_shift = _config->_narrowOopShift; 188 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 189 _narrow_klass_shift = _config->_narrowKlassShift; 190 } 191 _narrow_oop_shift_initialized = true; 192 } else { 193 verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift"); 194 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 195 verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift"); 196 } 197 } 198 } 199 } 200 201 AOTLib::~AOTLib() { 202 os::free((void*) _name); 203 } 204 205 AOTCodeHeap::~AOTCodeHeap() { 206 if (_classes != NULL) { 207 FREE_C_HEAP_ARRAY(AOTClass, _classes); 208 } 209 if (_code_to_aot != NULL) { 210 FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot); 211 } 212 } 213 214 AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) { 215 _name = (const char*) os::strdup(name); 216 217 // Verify that VM runs with the same parameters as AOT tool. 218 _config = (AOTConfiguration*) load_symbol("A.config"); 219 _header = (AOTHeader*) load_symbol("A.header"); 220 221 verify_config(); 222 223 if (!_valid && PrintAOT) { 224 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 225 tty->print_cr("%4d skipped %s aot library", _dso_id, _name); 226 } 227 } 228 229 AOTCodeHeap::AOTCodeHeap(AOTLib* lib) : 230 CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) { 231 assert(_lib->is_valid(), "invalid library"); 232 233 _lib_symbols_initialized = false; 234 _aot_id = 0; 235 236 _class_count = _lib->header()->_class_count; 237 _method_count = _lib->header()->_method_count; 238 239 // Collect metaspace info: names -> address in .got section 240 _metaspace_names = (const char*) _lib->load_symbol("A.meta.names"); 241 _method_metadata = (address) _lib->load_symbol("A.meth.metadata"); 242 _methods_offsets = (address) _lib->load_symbol("A.meth.offsets"); 243 _klasses_offsets = (address) _lib->load_symbol("A.kls.offsets"); 244 _dependencies = (address) _lib->load_symbol("A.kls.dependencies"); 245 _code_space = (address) _lib->load_symbol("A.text"); 246 247 // First cell is number of elements. 248 _klasses_got = (Metadata**) _lib->load_symbol("A.kls.got"); 249 _klasses_got_size = _lib->header()->_klasses_got_size; 250 251 _metadata_got = (Metadata**) _lib->load_symbol("A.meta.got"); 252 _metadata_got_size = _lib->header()->_metadata_got_size; 253 254 _oop_got = (oop*) _lib->load_symbol("A.oop.got"); 255 _oop_got_size = _lib->header()->_oop_got_size; 256 257 // Collect stubs info 258 _stubs_offsets = (int*) _lib->load_symbol("A.stubs.offsets"); 259 260 // code segments table 261 _code_segments = (address) _lib->load_symbol("A.code.segments"); 262 263 // method state 264 _method_state = (jlong*) _lib->load_symbol("A.meth.state"); 265 266 // Create a table for mapping classes 267 _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode); 268 memset(_classes, 0, _class_count * sizeof(AOTClass)); 269 270 // Create table for searching AOTCompiledMethod based on pc. 271 _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode); 272 memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod)); 273 274 _memory.set_low_boundary((char *)_code_space); 275 _memory.set_high_boundary((char *)_code_space); 276 _memory.set_low((char *)_code_space); 277 _memory.set_high((char *)_code_space); 278 279 _segmap.set_low_boundary((char *)_code_segments); 280 _segmap.set_low((char *)_code_segments); 281 282 _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize); 283 284 // Register aot stubs 285 register_stubs(); 286 287 if (PrintAOT || (PrintCompilation && PrintAOT)) { 288 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 289 tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name()); 290 } 291 } 292 293 void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) { 294 // The method may be explicitly excluded by the user. 295 // Or Interpreter uses an intrinsic for this method. 296 if (CompilerOracle::should_exclude(mh) || !AbstractInterpreter::can_be_compiled(mh)) { 297 return; 298 } 299 300 address code = method_data->_code; 301 const char* name = method_data->_name; 302 aot_metadata* meta = method_data->_meta; 303 304 if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) { 305 // When the AOT compiler compiles something big we fail to generate metadata 306 // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end. 307 // In all successful cases we always have 2 entries of scope pcs. 308 log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string()); 309 _code_to_aot[code_id]._state = invalid; 310 return; 311 } 312 313 jlong* state_adr = &_method_state[code_id]; 314 address metadata_table = method_data->_metadata_table; 315 int metadata_size = method_data->_metadata_size; 316 assert(code_id < _method_count, "sanity"); 317 _aot_id++; 318 319 #ifdef ASSERT 320 if (_aot_id > CIStop || _aot_id < CIStart) { 321 // Skip compilation 322 return; 323 } 324 #endif 325 // Check one more time. 326 if (_code_to_aot[code_id]._state == invalid) { 327 return; 328 } 329 AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id); 330 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 331 _code_to_aot[code_id]._aot = aot; // Should set this first 332 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) { 333 _code_to_aot[code_id]._aot = NULL; // Clean 334 } else { // success 335 // Publish method 336 #ifdef TIERED 337 mh->set_aot_code(aot); 338 #endif 339 Method::set_code(mh, aot); 340 if (PrintAOT || (PrintCompilation && PrintAOT)) { 341 aot->print_on(tty, NULL); 342 } 343 // Publish oop only after we are visible to CompiledMethodIterator 344 aot->set_oop(mh()->method_holder()->klass_holder()); 345 } 346 } 347 348 void AOTCodeHeap::link_primitive_array_klasses() { 349 ResourceMark rm; 350 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) { 351 BasicType t = (BasicType)i; 352 if (is_java_primitive(t)) { 353 const Klass* arr_klass = Universe::typeArrayKlassObj(t); 354 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name()); 355 if (klass_data != NULL) { 356 // Set both GOT cells, resolved and initialized klass pointers. 357 // _got_index points to second cell - resolved klass pointer. 358 _klasses_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized 359 _klasses_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved 360 if (PrintAOT) { 361 tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name()); 362 } 363 } 364 } 365 } 366 } 367 368 void AOTCodeHeap::register_stubs() { 369 int stubs_count = _stubs_offsets[0]; // contains number 370 _stubs_offsets++; 371 AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets; 372 for (int i = 0; i < stubs_count; ++i) { 373 const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset; 374 address entry = _code_space + stub_offsets[i]._code_offset; 375 aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset); 376 address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset; 377 int metadata_size = stub_offsets[i]._metadata_got_size; 378 int code_id = stub_offsets[i]._code_id; 379 assert(code_id < _method_count, "sanity"); 380 jlong* state_adr = &_method_state[code_id]; 381 int len = build_u2_from((address)stub_name); 382 stub_name += 2; 383 char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode); 384 if (full_name == NULL) { // No memory? 385 break; 386 } 387 memcpy(full_name, "AOT ", 4); 388 memcpy(full_name+4, stub_name, len); 389 full_name[len+4] = 0; 390 guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name); 391 AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i); 392 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 393 _code_to_aot[code_id]._aot = aot; 394 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) { 395 fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state); 396 } 397 // Adjust code buffer boundaries only for stubs because they are last in the buffer. 398 adjust_boundaries(aot); 399 if (PrintAOT && Verbose) { 400 aot->print_on(tty, NULL); 401 } 402 } 403 } 404 405 #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \ 406 { \ 407 AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \ 408 /* Check for a lookup error */ \ 409 guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \ 410 *adr = (AOTSYMTYPE) VMSYMVAL; \ 411 } 412 413 void AOTCodeHeap::link_graal_runtime_symbols() { 414 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter); 415 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit); 416 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object); 417 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf); 418 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive); 419 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance); 420 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array); 421 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array); 422 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array); 423 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object); 424 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre); 425 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code); 426 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post); 427 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance); 428 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_thread_is_interrupted", address, JVMCIRuntime::thread_is_interrupted); 429 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc); 430 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int); 431 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception); 432 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception); 433 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception); 434 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message); 435 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error); 436 } 437 438 void AOTCodeHeap::link_shared_runtime_symbols() { 439 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub()); 440 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub()); 441 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub()); 442 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack()); 443 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap()); 444 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub()); 445 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub()); 446 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address); 447 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer); 448 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end); 449 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_dynamic_invoke", address, CompilerRuntime::resolve_dynamic_invoke); 450 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol); 451 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol); 452 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters); 453 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol); 454 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event); 455 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event); 456 457 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow); 458 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp); 459 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos); 460 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin); 461 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan); 462 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog); 463 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10); 464 } 465 466 void AOTCodeHeap::link_stub_routines_symbols() { 467 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy); 468 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy); 469 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy); 470 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy); 471 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy); 472 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit); 473 474 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy); 475 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy); 476 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy); 477 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy); 478 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy); 479 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit); 480 481 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy); 482 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy); 483 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy); 484 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy); 485 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy); 486 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit); 487 488 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy); 489 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy); 490 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy); 491 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy); 492 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy); 493 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit); 494 495 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_unsafe_arraycopy", address, StubRoutines::_unsafe_arraycopy); 496 497 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy); 498 499 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_generic_arraycopy", address, StubRoutines::_generic_arraycopy); 500 501 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock); 502 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock); 503 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt); 504 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt); 505 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32); 506 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr); 507 508 509 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress); 510 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB); 511 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress); 512 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB); 513 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress); 514 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB); 515 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen); 516 517 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt); 518 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks); 519 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr); 520 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C); 521 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32); 522 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen); 523 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd); 524 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply); 525 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare); 526 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch); 527 528 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry); 529 530 } 531 532 void AOTCodeHeap::link_os_symbols() { 533 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis); 534 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos); 535 } 536 537 /* 538 * Link any global symbols in precompiled DSO with dlopen() _dl_handle 539 * dso_handle. 540 */ 541 542 void AOTCodeHeap::link_global_lib_symbols() { 543 if (!_lib_symbols_initialized) { 544 _lib_symbols_initialized = true; 545 546 CollectedHeap* heap = Universe::heap(); 547 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, ci_card_table_address()); 548 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL)); 549 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL)); 550 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page()); 551 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, Universe::narrow_klass_base()); 552 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, Universe::narrow_oop_base()); 553 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes); 554 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc()); 555 link_shared_runtime_symbols(); 556 link_stub_routines_symbols(); 557 link_os_symbols(); 558 link_graal_runtime_symbols(); 559 560 // Link primitive array klasses. 561 link_primitive_array_klasses(); 562 } 563 } 564 565 #ifndef PRODUCT 566 int AOTCodeHeap::klasses_seen = 0; 567 int AOTCodeHeap::aot_klasses_found = 0; 568 int AOTCodeHeap::aot_klasses_fp_miss = 0; 569 int AOTCodeHeap::aot_klasses_cl_miss = 0; 570 int AOTCodeHeap::aot_methods_found = 0; 571 572 void AOTCodeHeap::print_statistics() { 573 tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found); 574 tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss); 575 } 576 #endif 577 578 Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) { 579 int method_name_len = build_u2_from((address)method_name); 580 method_name += 2; 581 const char* signature_name = method_name + method_name_len; 582 int signature_name_len = build_u2_from((address)signature_name); 583 signature_name += 2; 584 // The class should have been loaded so the method and signature should already be 585 // in the symbol table. If they're not there, the method doesn't exist. 586 TempNewSymbol name = SymbolTable::probe(method_name, method_name_len); 587 TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len); 588 589 Method* m; 590 if (name == NULL || signature == NULL) { 591 m = NULL; 592 } else if (name == vmSymbols::object_initializer_name() || 593 name == vmSymbols::class_initializer_name()) { 594 // Never search superclasses for constructors 595 if (klass->is_instance_klass()) { 596 m = InstanceKlass::cast(klass)->find_method(name, signature); 597 } else { 598 m = NULL; 599 } 600 } else { 601 m = klass->lookup_method(name, signature); 602 if (m == NULL && klass->is_instance_klass()) { 603 m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature); 604 } 605 } 606 if (m == NULL) { 607 // Fatal error because we assume classes and methods should not be changed since aot compilation. 608 const char* klass_name = klass->external_name(); 609 int klass_len = (int)strlen(klass_name); 610 char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1); 611 memcpy(meta_name, klass_name, klass_len); 612 meta_name[klass_len] = '.'; 613 memcpy(&meta_name[klass_len + 1], method_name, method_name_len); 614 memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len); 615 meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0'; 616 Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name); 617 java_lang_Throwable::print(exception(), tty); 618 tty->cr(); 619 java_lang_Throwable::print_stack_trace(exception, tty); 620 tty->cr(); 621 fatal("Failed to find method '%s'", meta_name); 622 } 623 NOT_PRODUCT( aot_methods_found++; ) 624 return m; 625 } 626 627 AOTKlassData* AOTCodeHeap::find_klass(const char *name) { 628 return (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), name); 629 } 630 631 AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) { 632 ResourceMark rm; 633 AOTKlassData* klass_data = find_klass(ik->signature_name()); 634 return klass_data; 635 } 636 637 bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) { 638 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); 639 AOTKlassData* klass_data = find_klass(dependee_ik); 640 if (klass_data == NULL) { 641 return false; // no AOT records for this class - no dependencies 642 } 643 if (!dependee_ik->has_passed_fingerprint_check()) { 644 return false; // different class 645 } 646 647 int methods_offset = klass_data->_dependent_methods_offset; 648 if (methods_offset >= 0) { 649 address methods_cnt_adr = _dependencies + methods_offset; 650 int methods_cnt = *(int*)methods_cnt_adr; 651 int* indexes = (int*)(methods_cnt_adr + 4); 652 for (int i = 0; i < methods_cnt; ++i) { 653 int code_id = indexes[i]; 654 if (_code_to_aot[code_id]._aot == aot) { 655 return true; // found dependent method 656 } 657 } 658 } 659 return false; 660 } 661 662 void AOTCodeHeap::sweep_dependent_methods(int* indexes, int methods_cnt) { 663 int marked = 0; 664 for (int i = 0; i < methods_cnt; ++i) { 665 int code_id = indexes[i]; 666 // Invalidate aot code. 667 if (Atomic::cmpxchg(invalid, &_code_to_aot[code_id]._state, not_set) != not_set) { 668 if (_code_to_aot[code_id]._state == in_use) { 669 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot; 670 assert(aot != NULL, "aot should be set"); 671 if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs. 672 aot->mark_for_deoptimization(false); 673 marked++; 674 } 675 } 676 } 677 } 678 if (marked > 0) { 679 VM_Deoptimize op; 680 VMThread::execute(&op); 681 } 682 } 683 684 void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) { 685 // Make dependent methods non_entrant forever. 686 int methods_offset = klass_data->_dependent_methods_offset; 687 if (methods_offset >= 0) { 688 address methods_cnt_adr = _dependencies + methods_offset; 689 int methods_cnt = *(int*)methods_cnt_adr; 690 int* indexes = (int*)(methods_cnt_adr + 4); 691 sweep_dependent_methods(indexes, methods_cnt); 692 } 693 } 694 695 void AOTCodeHeap::sweep_dependent_methods(InstanceKlass* ik) { 696 AOTKlassData* klass_data = find_klass(ik); 697 vmassert(klass_data != NULL, "dependency data missing"); 698 sweep_dependent_methods(klass_data); 699 } 700 701 void AOTCodeHeap::sweep_method(AOTCompiledMethod *aot) { 702 int indexes[] = {aot->method_index()}; 703 sweep_dependent_methods(indexes, 1); 704 vmassert(aot->method()->code() != aot && aot->method()->aot_code() == NULL, "method still active"); 705 } 706 707 708 bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) { 709 ResourceMark rm; 710 711 NOT_PRODUCT( klasses_seen++; ) 712 713 AOTKlassData* klass_data = find_klass(ik); 714 if (klass_data == NULL) { 715 return false; 716 } 717 718 if (!ik->has_passed_fingerprint_check()) { 719 NOT_PRODUCT( aot_klasses_fp_miss++; ) 720 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 721 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 722 _lib->name(), p2i(thread)); 723 sweep_dependent_methods(klass_data); 724 return false; 725 } 726 727 if (ik->has_been_redefined()) { 728 log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT, 729 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 730 _lib->name(), p2i(thread)); 731 sweep_dependent_methods(klass_data); 732 return false; 733 } 734 735 assert(klass_data->_class_id < _class_count, "invalid class id"); 736 AOTClass* aot_class = &_classes[klass_data->_class_id]; 737 if (aot_class->_classloader != NULL && aot_class->_classloader != ik->class_loader_data()) { 738 log_trace(aot, class, load)("class %s in %s already loaded for classloader %p vs %p tid=" INTPTR_FORMAT, 739 ik->internal_name(), _lib->name(), aot_class->_classloader, ik->class_loader_data(), p2i(thread)); 740 NOT_PRODUCT( aot_klasses_cl_miss++; ) 741 return false; 742 } 743 744 if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) { 745 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()); 746 sweep_dependent_methods(klass_data); 747 return false; 748 } 749 750 NOT_PRODUCT( aot_klasses_found++; ) 751 752 log_trace(aot, class, load)("found %s in %s for classloader %p tid=" INTPTR_FORMAT, ik->internal_name(), _lib->name(), ik->class_loader_data(), p2i(thread)); 753 754 aot_class->_classloader = ik->class_loader_data(); 755 // Set klass's Resolve (second) got cell. 756 _klasses_got[klass_data->_got_index] = ik; 757 if (ik->is_initialized()) { 758 _klasses_got[klass_data->_got_index - 1] = ik; 759 } 760 761 // Initialize global symbols of the DSO to the corresponding VM symbol values. 762 link_global_lib_symbols(); 763 764 int methods_offset = klass_data->_compiled_methods_offset; 765 if (methods_offset >= 0) { 766 address methods_cnt_adr = _methods_offsets + methods_offset; 767 int methods_cnt = *(int*)methods_cnt_adr; 768 // Collect data about compiled methods 769 AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt); 770 AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4); 771 for (int i = 0; i < methods_cnt; ++i) { 772 AOTMethodOffsets* method_offsets = &methods_offsets[i]; 773 int code_id = method_offsets->_code_id; 774 if (_code_to_aot[code_id]._state == invalid) { 775 continue; // skip AOT methods slots which have been invalidated 776 } 777 AOTMethodData* method_data = &methods_data[i]; 778 const char* aot_name = _metaspace_names + method_offsets->_name_offset; 779 method_data->_name = aot_name; 780 method_data->_code = _code_space + method_offsets->_code_offset; 781 method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset); 782 method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset; 783 method_data->_metadata_size = method_offsets->_metadata_got_size; 784 // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V" 785 int klass_len = build_u2_from((address)aot_name); 786 const char* method_name = aot_name + 2 + klass_len; 787 Method* m = AOTCodeHeap::find_method(ik, thread, method_name); 788 methodHandle mh(thread, m); 789 if (mh->code() != NULL) { // Does it have already compiled code? 790 continue; // Don't overwrite 791 } 792 publish_aot(mh, method_data, code_id); 793 } 794 } 795 return true; 796 } 797 798 AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const { 799 for (int index = start; index < _method_count; index++) { 800 if (_code_to_aot[index]._state != in_use) { 801 continue; // Skip uninitialized entries. 802 } 803 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 804 return aot; 805 } 806 return NULL; 807 } 808 809 void* AOTCodeHeap::first() const { 810 return next_in_use_at(0); 811 } 812 813 void* AOTCodeHeap::next(void* p) const { 814 AOTCompiledMethod *aot = (AOTCompiledMethod *)p; 815 int next_index = aot->method_index() + 1; 816 assert(next_index <= _method_count, ""); 817 if (next_index == _method_count) { 818 return NULL; 819 } 820 return next_in_use_at(next_index); 821 } 822 823 void* AOTCodeHeap::find_start(void* p) const { 824 if (!contains(p)) { 825 return NULL; 826 } 827 size_t offset = pointer_delta(p, low_boundary(), 1); 828 // Use segments table 829 size_t seg_idx = offset / _lib->config()->_codeSegmentSize; 830 if ((int)(_code_segments[seg_idx]) == 0xff) { 831 return NULL; 832 } 833 while (_code_segments[seg_idx] > 0) { 834 seg_idx -= (int)_code_segments[seg_idx]; 835 } 836 int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize; 837 int aot_index = *(int*)(_code_space + code_offset); 838 AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot; 839 assert(aot != NULL, "should find registered aot method"); 840 return aot; 841 } 842 843 AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const { 844 assert(contains(p), "should be here"); 845 return (AOTCompiledMethod *)find_start(p); 846 } 847 848 CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const { 849 return (CodeBlob*)AOTCodeHeap::find_start(start); 850 } 851 852 void AOTCodeHeap::oops_do(OopClosure* f) { 853 for (int i = 0; i < _oop_got_size; i++) { 854 oop* p = &_oop_got[i]; 855 if (*p == NULL) continue; // skip non-oops 856 f->do_oop(p); 857 } 858 for (int index = 0; index < _method_count; index++) { 859 if (_code_to_aot[index]._state != in_use) { 860 continue; // Skip uninitialized entries. 861 } 862 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 863 aot->do_oops(f); 864 } 865 } 866 867 // Scan only klasses_got cells which should have only Klass*, 868 // metadata_got cells are scanned only for alive AOT methods 869 // by AOTCompiledMethod::metadata_do(). 870 void AOTCodeHeap::got_metadata_do(void f(Metadata*)) { 871 for (int i = 1; i < _klasses_got_size; i++) { 872 Metadata** p = &_klasses_got[i]; 873 Metadata* md = *p; 874 if (md == NULL) continue; // skip non-oops 875 if (Metaspace::contains(md)) { 876 f(md); 877 } else { 878 intptr_t meta = (intptr_t)md; 879 fatal("Invalid value in _klasses_got[%d] = " INTPTR_FORMAT, i, meta); 880 } 881 } 882 } 883 884 void AOTCodeHeap::cleanup_inline_caches() { 885 for (int index = 0; index < _method_count; index++) { 886 if (_code_to_aot[index]._state != in_use) { 887 continue; // Skip uninitialized entries. 888 } 889 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 890 aot->cleanup_inline_caches(); 891 } 892 } 893 894 #ifdef ASSERT 895 int AOTCodeHeap::verify_icholder_relocations() { 896 int count = 0; 897 for (int index = 0; index < _method_count; index++) { 898 if (_code_to_aot[index]._state != in_use) { 899 continue; // Skip uninitialized entries. 900 } 901 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 902 count += aot->verify_icholder_relocations(); 903 } 904 return count; 905 } 906 #endif 907 908 void AOTCodeHeap::flush_evol_dependents_on(InstanceKlass* dependee) { 909 for (int index = 0; index < _method_count; index++) { 910 if (_code_to_aot[index]._state != in_use) { 911 continue; // Skip uninitialized entries. 912 } 913 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 914 aot->flush_evol_dependents_on(dependee); 915 } 916 } 917 918 void AOTCodeHeap::metadata_do(void f(Metadata*)) { 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 if (aot->_is_alive()) { 925 aot->metadata_do(f); 926 } 927 } 928 // Scan klasses_got cells. 929 got_metadata_do(f); 930 } 931 932 bool AOTCodeHeap::reconcile_dynamic_klass(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Klass *dyno_klass, const char *descriptor1, const char *descriptor2) { 933 const char * const descriptors[2] = {descriptor1, descriptor2}; 934 JavaThread *thread = JavaThread::current(); 935 ResourceMark rm(thread); 936 937 AOTKlassData* holder_data = find_klass(holder); 938 vmassert(holder_data != NULL, "klass %s not found", holder->signature_name()); 939 vmassert(is_dependent_method(holder, caller), "sanity"); 940 941 AOTKlassData* dyno_data = NULL; 942 bool adapter_failed = false; 943 char buf[64]; 944 int descriptor_index = 0; 945 // descriptors[0] specific name ("adapter:<method_id>") for matching 946 // descriptors[1] fall-back name ("adapter") for depdencies 947 while (descriptor_index < 2) { 948 const char *descriptor = descriptors[descriptor_index]; 949 if (descriptor == NULL) { 950 break; 951 } 952 jio_snprintf(buf, sizeof buf, "%s<%d:%d>", descriptor, holder_data->_class_id, index); 953 dyno_data = find_klass(buf); 954 if (dyno_data != NULL) { 955 break; 956 } 957 // If match failed then try fall-back for dependencies 958 ++descriptor_index; 959 adapter_failed = true; 960 } 961 962 if (dyno_data == NULL && dyno_klass == NULL) { 963 // all is well, no (appendix) at compile-time, and still none 964 return true; 965 } 966 967 if (dyno_data == NULL) { 968 // no (appendix) at build-time, but now there is 969 sweep_dependent_methods(holder_data); 970 return false; 971 } 972 973 if (adapter_failed) { 974 // adapter method mismatch 975 sweep_dependent_methods(holder_data); 976 sweep_dependent_methods(dyno_data); 977 return false; 978 } 979 980 if (dyno_klass == NULL) { 981 // (appendix) at build-time, none now 982 sweep_dependent_methods(holder_data); 983 sweep_dependent_methods(dyno_data); 984 return false; 985 } 986 987 // TODO: support array appendix object 988 if (!dyno_klass->is_instance_klass()) { 989 sweep_dependent_methods(holder_data); 990 sweep_dependent_methods(dyno_data); 991 return false; 992 } 993 994 InstanceKlass* dyno = InstanceKlass::cast(dyno_klass); 995 996 if (!dyno->is_anonymous()) { 997 if (_klasses_got[dyno_data->_got_index] != dyno) { 998 // compile-time class different from runtime class, fail and deoptimize 999 sweep_dependent_methods(holder_data); 1000 sweep_dependent_methods(dyno_data); 1001 return false; 1002 } 1003 1004 if (dyno->is_initialized()) { 1005 _klasses_got[dyno_data->_got_index - 1] = dyno; 1006 } 1007 return true; 1008 } 1009 1010 // TODO: support anonymous supers 1011 if (!dyno->supers_have_passed_fingerprint_checks() || dyno->get_stored_fingerprint() != dyno_data->_fingerprint) { 1012 NOT_PRODUCT( aot_klasses_fp_miss++; ) 1013 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 1014 dyno->internal_name(), dyno->is_shared() ? " (shared)" : "", 1015 _lib->name(), p2i(thread)); 1016 sweep_dependent_methods(holder_data); 1017 sweep_dependent_methods(dyno_data); 1018 return false; 1019 } 1020 1021 _klasses_got[dyno_data->_got_index] = dyno; 1022 if (dyno->is_initialized()) { 1023 _klasses_got[dyno_data->_got_index - 1] = dyno; 1024 } 1025 1026 // TODO: hook up any AOT code 1027 // load_klass_data(dyno_data, thread); 1028 return true; 1029 } 1030 1031 bool AOTCodeHeap::reconcile_dynamic_method(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Method *adapter_method) { 1032 InstanceKlass *adapter_klass = adapter_method->method_holder(); 1033 char buf[64]; 1034 jio_snprintf(buf, sizeof buf, "adapter:%d", adapter_method->method_idnum()); 1035 if (!reconcile_dynamic_klass(caller, holder, index, adapter_klass, buf, "adapter")) { 1036 return false; 1037 } 1038 return true; 1039 } 1040 1041 bool AOTCodeHeap::reconcile_dynamic_invoke(AOTCompiledMethod* caller, InstanceKlass* holder, int index, Method* adapter_method, Klass *appendix_klass) { 1042 if (!reconcile_dynamic_klass(caller, holder, index, appendix_klass, "appendix")) { 1043 return false; 1044 } 1045 1046 if (!reconcile_dynamic_method(caller, holder, index, adapter_method)) { 1047 return false; 1048 } 1049 1050 return true; 1051 }