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.hpp" 29 #include "classfile/javaAssertions.hpp" 30 #include "gc/shared/cardTable.hpp" 31 #include "gc/shared/cardTableModRefBS.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/os.hpp" 40 #include "runtime/sharedRuntime.hpp" 41 #include "runtime/vm_operations.hpp" 42 43 bool AOTLib::_narrow_oop_shift_initialized = false; 44 int AOTLib::_narrow_oop_shift = 0; 45 int AOTLib::_narrow_klass_shift = 0; 46 47 address AOTLib::load_symbol(const char *name) { 48 address symbol = (address) os::dll_lookup(_dl_handle, name); 49 if (symbol == NULL) { 50 tty->print_cr("Shared file %s error: missing %s", _name, name); 51 vm_exit(1); 52 } 53 return symbol; 54 } 55 56 Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) { 57 AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name); 58 Klass* k = (Klass*)_klasses_got[klass_data->_got_index]; 59 if (k == NULL) { 60 Thread* thread = Thread::current(); 61 k = lookup_klass(klass_name, klass_len, method, thread); 62 // Note, exceptions are cleared. 63 if (k == NULL) { 64 fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name); 65 vm_exit(1); 66 } 67 // Patch now to avoid extra runtime lookup 68 _klasses_got[klass_data->_got_index] = k; 69 if (k->is_instance_klass()) { 70 InstanceKlass* ik = InstanceKlass::cast(k); 71 if (ik->is_initialized()) { 72 _klasses_got[klass_data->_got_index - 1] = ik; 73 } 74 } 75 } 76 return k; 77 } 78 79 Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) { 80 ResourceMark rm(thread); 81 assert(method != NULL, "incorrect call parameter"); 82 methodHandle caller(thread, (Method*)method); 83 84 // Use class loader of aot method. 85 Handle loader(thread, caller->method_holder()->class_loader()); 86 Handle protection_domain(thread, caller->method_holder()->protection_domain()); 87 88 // Ignore wrapping L and ; 89 if (name[0] == 'L') { 90 assert(len > 2, "small name %s", name); 91 name++; 92 len -= 2; 93 } 94 TempNewSymbol sym = SymbolTable::probe(name, len); 95 if (sym == NULL) { 96 log_debug(aot, class, resolve)("Probe failed for AOT class %s", name); 97 return NULL; 98 } 99 Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread); 100 assert(!thread->has_pending_exception(), "should not throw"); 101 102 if (k != NULL) { 103 log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name()); 104 } 105 return k; 106 } 107 108 void AOTLib::handle_config_error(const char* format, ...) { 109 if (PrintAOT) { 110 va_list ap; 111 va_start(ap, format); 112 tty->vprint_cr(format, ap); 113 va_end(ap); 114 } 115 if (UseAOTStrictLoading) { 116 vm_exit(1); 117 } 118 _valid = false; 119 } 120 121 void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) { 122 if (_valid && aot_flag != flag) { 123 handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false")); 124 } 125 } 126 127 void AOTLib::verify_flag(int aot_flag, int flag, const char* name) { 128 if (_valid && aot_flag != flag) { 129 handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag); 130 } 131 } 132 133 void AOTLib::verify_config() { 134 GrowableArray<AOTLib*>* libraries = AOTLoader::libraries(); 135 for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) { 136 if ((*lib)->_config == _config) { 137 handle_config_error("AOT library %s already loaded.", (*lib)->_name); 138 return; 139 } 140 } 141 142 if (_header->_version != AOTHeader::AOT_SHARED_VERSION) { 143 handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION); 144 return; 145 } 146 147 const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2; 148 if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) { 149 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()); 150 return; 151 } 152 153 // Debug VM has different layout of runtime and metadata structures 154 #ifdef ASSERT 155 verify_flag(_config->_debug_VM, true, "Debug VM version"); 156 #else 157 verify_flag(!(_config->_debug_VM), true, "Product VM version"); 158 #endif 159 // Check configuration size 160 verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size"); 161 162 // Check flags 163 verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops"); 164 verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers"); 165 verify_flag(_config->_useG1GC, UseG1GC, "UseG1GC"); 166 verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB"); 167 verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking"); 168 verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes"); 169 verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth"); 170 verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle"); 171 verify_flag(_config->_compactFields, CompactFields, "CompactFields"); 172 verify_flag(_config->_enableContended, EnableContended, "EnableContended"); 173 verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended"); 174 verify_flag(_config->_threadLocalHandshakes, ThreadLocalHandshakes, "ThreadLocalHandshakes"); 175 176 if (!TieredCompilation && _config->_tieredAOT) { 177 handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name); 178 } 179 180 // Shifts are static values which initialized by 0 until java heap initialization. 181 // AOT libs are loaded before heap initialized so shift values are not set. 182 // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded. 183 // Set shifts value based on first AOT library config. 184 if (UseCompressedOops && _valid) { 185 if (!_narrow_oop_shift_initialized) { 186 _narrow_oop_shift = _config->_narrowOopShift; 187 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 188 _narrow_klass_shift = _config->_narrowKlassShift; 189 } 190 _narrow_oop_shift_initialized = true; 191 } else { 192 verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift"); 193 if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set 194 verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift"); 195 } 196 } 197 } 198 } 199 200 AOTLib::~AOTLib() { 201 os::free((void*) _name); 202 } 203 204 AOTCodeHeap::~AOTCodeHeap() { 205 if (_classes != NULL) { 206 FREE_C_HEAP_ARRAY(AOTClass, _classes); 207 } 208 if (_code_to_aot != NULL) { 209 FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot); 210 } 211 } 212 213 AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) { 214 _name = (const char*) os::strdup(name); 215 216 // Verify that VM runs with the same parameters as AOT tool. 217 _config = (AOTConfiguration*) load_symbol("A.config"); 218 _header = (AOTHeader*) load_symbol("A.header"); 219 220 verify_config(); 221 222 if (!_valid && PrintAOT) { 223 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 224 tty->print_cr("%4d skipped %s aot library", _dso_id, _name); 225 } 226 } 227 228 AOTCodeHeap::AOTCodeHeap(AOTLib* lib) : 229 CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) { 230 assert(_lib->is_valid(), "invalid library"); 231 232 _lib_symbols_initialized = false; 233 _aot_id = 0; 234 235 _class_count = _lib->header()->_class_count; 236 _method_count = _lib->header()->_method_count; 237 238 // Collect metaspace info: names -> address in .got section 239 _metaspace_names = (const char*) _lib->load_symbol("A.meta.names"); 240 _method_metadata = (address) _lib->load_symbol("A.meth.metadata"); 241 _methods_offsets = (address) _lib->load_symbol("A.meth.offsets"); 242 _klasses_offsets = (address) _lib->load_symbol("A.kls.offsets"); 243 _dependencies = (address) _lib->load_symbol("A.kls.dependencies"); 244 _code_space = (address) _lib->load_symbol("A.text"); 245 246 // First cell is number of elements. 247 _klasses_got = (Metadata**) _lib->load_symbol("A.kls.got"); 248 _klasses_got_size = _lib->header()->_klasses_got_size; 249 250 _metadata_got = (Metadata**) _lib->load_symbol("A.meta.got"); 251 _metadata_got_size = _lib->header()->_metadata_got_size; 252 253 _oop_got = (oop*) _lib->load_symbol("A.oop.got"); 254 _oop_got_size = _lib->header()->_oop_got_size; 255 256 // Collect stubs info 257 _stubs_offsets = (int*) _lib->load_symbol("A.stubs.offsets"); 258 259 // code segments table 260 _code_segments = (address) _lib->load_symbol("A.code.segments"); 261 262 // method state 263 _method_state = (jlong*) _lib->load_symbol("A.meth.state"); 264 265 // Create a table for mapping classes 266 _classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode); 267 memset(_classes, 0, _class_count * sizeof(AOTClass)); 268 269 // Create table for searching AOTCompiledMethod based on pc. 270 _code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode); 271 memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod)); 272 273 _memory.set_low_boundary((char *)_code_space); 274 _memory.set_high_boundary((char *)_code_space); 275 _memory.set_low((char *)_code_space); 276 _memory.set_high((char *)_code_space); 277 278 _segmap.set_low_boundary((char *)_code_segments); 279 _segmap.set_low((char *)_code_segments); 280 281 _log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize); 282 283 // Register aot stubs 284 register_stubs(); 285 286 if (PrintAOT || (PrintCompilation && PrintAOT)) { 287 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); 288 tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name()); 289 } 290 } 291 292 void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) { 293 // The method may be explicitly excluded by the user. 294 // Or Interpreter uses an intrinsic for this method. 295 if (CompilerOracle::should_exclude(mh) || !AbstractInterpreter::can_be_compiled(mh)) { 296 return; 297 } 298 299 address code = method_data->_code; 300 const char* name = method_data->_name; 301 aot_metadata* meta = method_data->_meta; 302 303 if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) { 304 // When the AOT compiler compiles something big we fail to generate metadata 305 // in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end. 306 // In all successful cases we always have 2 entries of scope pcs. 307 log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string()); 308 _code_to_aot[code_id]._state = invalid; 309 return; 310 } 311 312 jlong* state_adr = &_method_state[code_id]; 313 address metadata_table = method_data->_metadata_table; 314 int metadata_size = method_data->_metadata_size; 315 assert(code_id < _method_count, "sanity"); 316 _aot_id++; 317 318 #ifdef ASSERT 319 if (_aot_id > CIStop || _aot_id < CIStart) { 320 // Skip compilation 321 return; 322 } 323 #endif 324 // Check one more time. 325 if (_code_to_aot[code_id]._state == invalid) { 326 return; 327 } 328 AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id); 329 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 330 _code_to_aot[code_id]._aot = aot; // Should set this first 331 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) { 332 _code_to_aot[code_id]._aot = NULL; // Clean 333 } else { // success 334 // Publish method 335 #ifdef TIERED 336 mh->set_aot_code(aot); 337 #endif 338 Method::set_code(mh, aot); 339 if (PrintAOT || (PrintCompilation && PrintAOT)) { 340 aot->print_on(tty, NULL); 341 } 342 // Publish oop only after we are visible to CompiledMethodIterator 343 aot->set_oop(mh()->method_holder()->klass_holder()); 344 } 345 } 346 347 void AOTCodeHeap::link_primitive_array_klasses() { 348 ResourceMark rm; 349 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) { 350 BasicType t = (BasicType)i; 351 if (is_java_primitive(t)) { 352 const Klass* arr_klass = Universe::typeArrayKlassObj(t); 353 AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name()); 354 if (klass_data != NULL) { 355 // Set both GOT cells, resolved and initialized klass pointers. 356 // _got_index points to second cell - resolved klass pointer. 357 _klasses_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized 358 _klasses_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved 359 if (PrintAOT) { 360 tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name()); 361 } 362 } 363 } 364 } 365 } 366 367 void AOTCodeHeap::register_stubs() { 368 int stubs_count = _stubs_offsets[0]; // contains number 369 _stubs_offsets++; 370 AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets; 371 for (int i = 0; i < stubs_count; ++i) { 372 const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset; 373 address entry = _code_space + stub_offsets[i]._code_offset; 374 aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset); 375 address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset; 376 int metadata_size = stub_offsets[i]._metadata_got_size; 377 int code_id = stub_offsets[i]._code_id; 378 assert(code_id < _method_count, "sanity"); 379 jlong* state_adr = &_method_state[code_id]; 380 int len = build_u2_from((address)stub_name); 381 stub_name += 2; 382 char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode); 383 if (full_name == NULL) { // No memory? 384 break; 385 } 386 memcpy(full_name, "AOT ", 4); 387 memcpy(full_name+4, stub_name, len); 388 full_name[len+4] = 0; 389 guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name); 390 AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i); 391 assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized"); 392 _code_to_aot[code_id]._aot = aot; 393 if (Atomic::cmpxchg(in_use, &_code_to_aot[code_id]._state, not_set) != not_set) { 394 fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state); 395 } 396 // Adjust code buffer boundaries only for stubs because they are last in the buffer. 397 adjust_boundaries(aot); 398 if (PrintAOT && Verbose) { 399 aot->print_on(tty, NULL); 400 } 401 } 402 } 403 404 #define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \ 405 { \ 406 AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \ 407 /* Check for a lookup error */ \ 408 guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \ 409 *adr = (AOTSYMTYPE) VMSYMVAL; \ 410 } 411 412 void AOTCodeHeap::link_graal_runtime_symbols() { 413 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter); 414 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit); 415 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object); 416 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf); 417 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive); 418 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance); 419 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array); 420 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array); 421 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array); 422 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object); 423 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre); 424 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code); 425 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post); 426 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance); 427 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_thread_is_interrupted", address, JVMCIRuntime::thread_is_interrupted); 428 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc); 429 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int); 430 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception); 431 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception); 432 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception); 433 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message); 434 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error); 435 } 436 437 void AOTCodeHeap::link_shared_runtime_symbols() { 438 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub()); 439 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub()); 440 SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub()); 441 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack()); 442 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap()); 443 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub()); 444 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub()); 445 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address); 446 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer); 447 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end); 448 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_dynamic_invoke", address, CompilerRuntime::resolve_dynamic_invoke); 449 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol); 450 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol); 451 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters); 452 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol); 453 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event); 454 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event); 455 456 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow); 457 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp); 458 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos); 459 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin); 460 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan); 461 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog); 462 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10); 463 } 464 465 void AOTCodeHeap::link_stub_routines_symbols() { 466 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy); 467 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy); 468 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy); 469 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy); 470 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy); 471 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit); 472 473 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy); 474 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy); 475 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy); 476 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy); 477 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy); 478 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit); 479 480 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy); 481 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy); 482 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy); 483 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy); 484 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy); 485 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit); 486 487 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy); 488 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy); 489 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy); 490 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy); 491 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy); 492 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit); 493 494 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_unsafe_arraycopy", address, StubRoutines::_unsafe_arraycopy); 495 496 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy); 497 498 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_generic_arraycopy", address, StubRoutines::_generic_arraycopy); 499 500 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock); 501 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock); 502 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt); 503 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt); 504 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32); 505 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr); 506 507 508 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress); 509 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB); 510 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress); 511 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB); 512 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress); 513 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB); 514 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen); 515 516 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt); 517 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks); 518 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr); 519 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C); 520 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32); 521 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen); 522 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd); 523 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply); 524 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare); 525 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch); 526 527 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry); 528 529 } 530 531 void AOTCodeHeap::link_os_symbols() { 532 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis); 533 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos); 534 } 535 536 /* 537 * Link any global symbols in precompiled DSO with dlopen() _dl_handle 538 * dso_handle. 539 */ 540 541 void AOTCodeHeap::link_global_lib_symbols() { 542 if (!_lib_symbols_initialized) { 543 _lib_symbols_initialized = true; 544 545 CollectedHeap* heap = Universe::heap(); 546 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, ci_card_table_address()); 547 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL)); 548 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL)); 549 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page()); 550 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, Universe::narrow_klass_base()); 551 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, Universe::narrow_oop_base()); 552 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes); 553 SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc()); 554 link_shared_runtime_symbols(); 555 link_stub_routines_symbols(); 556 link_os_symbols(); 557 link_graal_runtime_symbols(); 558 559 // Link primitive array klasses. 560 link_primitive_array_klasses(); 561 } 562 } 563 564 #ifndef PRODUCT 565 int AOTCodeHeap::klasses_seen = 0; 566 int AOTCodeHeap::aot_klasses_found = 0; 567 int AOTCodeHeap::aot_klasses_fp_miss = 0; 568 int AOTCodeHeap::aot_klasses_cl_miss = 0; 569 int AOTCodeHeap::aot_methods_found = 0; 570 571 void AOTCodeHeap::print_statistics() { 572 tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found); 573 tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss); 574 } 575 #endif 576 577 Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) { 578 int method_name_len = build_u2_from((address)method_name); 579 method_name += 2; 580 const char* signature_name = method_name + method_name_len; 581 int signature_name_len = build_u2_from((address)signature_name); 582 signature_name += 2; 583 // The class should have been loaded so the method and signature should already be 584 // in the symbol table. If they're not there, the method doesn't exist. 585 TempNewSymbol name = SymbolTable::probe(method_name, method_name_len); 586 TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len); 587 588 Method* m; 589 if (name == NULL || signature == NULL) { 590 m = NULL; 591 } else if (name == vmSymbols::object_initializer_name() || 592 name == vmSymbols::class_initializer_name()) { 593 // Never search superclasses for constructors 594 if (klass->is_instance_klass()) { 595 m = InstanceKlass::cast(klass)->find_method(name, signature); 596 } else { 597 m = NULL; 598 } 599 } else { 600 m = klass->lookup_method(name, signature); 601 if (m == NULL && klass->is_instance_klass()) { 602 m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature); 603 } 604 } 605 if (m == NULL) { 606 // Fatal error because we assume classes and methods should not be changed since aot compilation. 607 const char* klass_name = klass->external_name(); 608 int klass_len = (int)strlen(klass_name); 609 char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1); 610 memcpy(meta_name, klass_name, klass_len); 611 meta_name[klass_len] = '.'; 612 memcpy(&meta_name[klass_len + 1], method_name, method_name_len); 613 memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len); 614 meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0'; 615 Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name); 616 java_lang_Throwable::print(exception(), tty); 617 tty->cr(); 618 java_lang_Throwable::print_stack_trace(exception, tty); 619 tty->cr(); 620 fatal("Failed to find method '%s'", meta_name); 621 } 622 NOT_PRODUCT( aot_methods_found++; ) 623 return m; 624 } 625 626 AOTKlassData* AOTCodeHeap::find_klass(const char *name) { 627 return (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), name); 628 } 629 630 AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) { 631 ResourceMark rm; 632 AOTKlassData* klass_data = find_klass(ik->signature_name()); 633 return klass_data; 634 } 635 636 bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) { 637 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); 638 AOTKlassData* klass_data = find_klass(dependee_ik); 639 if (klass_data == NULL) { 640 return false; // no AOT records for this class - no dependencies 641 } 642 if (!dependee_ik->has_passed_fingerprint_check()) { 643 return false; // different class 644 } 645 646 int methods_offset = klass_data->_dependent_methods_offset; 647 if (methods_offset >= 0) { 648 address methods_cnt_adr = _dependencies + methods_offset; 649 int methods_cnt = *(int*)methods_cnt_adr; 650 int* indexes = (int*)(methods_cnt_adr + 4); 651 for (int i = 0; i < methods_cnt; ++i) { 652 int code_id = indexes[i]; 653 if (_code_to_aot[code_id]._aot == aot) { 654 return true; // found dependent method 655 } 656 } 657 } 658 return false; 659 } 660 661 void AOTCodeHeap::sweep_dependent_methods(int* indexes, int methods_cnt) { 662 int marked = 0; 663 for (int i = 0; i < methods_cnt; ++i) { 664 int code_id = indexes[i]; 665 // Invalidate aot code. 666 if (Atomic::cmpxchg(invalid, &_code_to_aot[code_id]._state, not_set) != not_set) { 667 if (_code_to_aot[code_id]._state == in_use) { 668 AOTCompiledMethod* aot = _code_to_aot[code_id]._aot; 669 assert(aot != NULL, "aot should be set"); 670 if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs. 671 aot->mark_for_deoptimization(false); 672 marked++; 673 } 674 } 675 } 676 } 677 if (marked > 0) { 678 VM_Deoptimize op; 679 VMThread::execute(&op); 680 } 681 } 682 683 void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) { 684 // Make dependent methods non_entrant forever. 685 int methods_offset = klass_data->_dependent_methods_offset; 686 if (methods_offset >= 0) { 687 address methods_cnt_adr = _dependencies + methods_offset; 688 int methods_cnt = *(int*)methods_cnt_adr; 689 int* indexes = (int*)(methods_cnt_adr + 4); 690 sweep_dependent_methods(indexes, methods_cnt); 691 } 692 } 693 694 void AOTCodeHeap::sweep_dependent_methods(InstanceKlass* ik) { 695 AOTKlassData* klass_data = find_klass(ik); 696 vmassert(klass_data != NULL, "dependency data missing"); 697 sweep_dependent_methods(klass_data); 698 } 699 700 void AOTCodeHeap::sweep_method(AOTCompiledMethod *aot) { 701 int indexes[] = {aot->method_index()}; 702 sweep_dependent_methods(indexes, 1); 703 vmassert(aot->method()->code() != aot && aot->method()->aot_code() == NULL, "method still active"); 704 } 705 706 707 bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) { 708 ResourceMark rm; 709 710 NOT_PRODUCT( klasses_seen++; ) 711 712 AOTKlassData* klass_data = find_klass(ik); 713 if (klass_data == NULL) { 714 return false; 715 } 716 717 if (!ik->has_passed_fingerprint_check()) { 718 NOT_PRODUCT( aot_klasses_fp_miss++; ) 719 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 720 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 721 _lib->name(), p2i(thread)); 722 sweep_dependent_methods(klass_data); 723 return false; 724 } 725 726 if (ik->has_been_redefined()) { 727 log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT, 728 ik->internal_name(), ik->is_shared() ? " (shared)" : "", 729 _lib->name(), p2i(thread)); 730 sweep_dependent_methods(klass_data); 731 return false; 732 } 733 734 assert(klass_data->_class_id < _class_count, "invalid class id"); 735 AOTClass* aot_class = &_classes[klass_data->_class_id]; 736 if (aot_class->_classloader != NULL && aot_class->_classloader != ik->class_loader_data()) { 737 log_trace(aot, class, load)("class %s in %s already loaded for classloader %p vs %p tid=" INTPTR_FORMAT, 738 ik->internal_name(), _lib->name(), aot_class->_classloader, ik->class_loader_data(), p2i(thread)); 739 NOT_PRODUCT( aot_klasses_cl_miss++; ) 740 return false; 741 } 742 743 if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) { 744 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()); 745 sweep_dependent_methods(klass_data); 746 return false; 747 } 748 749 NOT_PRODUCT( aot_klasses_found++; ) 750 751 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)); 752 753 aot_class->_classloader = ik->class_loader_data(); 754 // Set klass's Resolve (second) got cell. 755 _klasses_got[klass_data->_got_index] = ik; 756 if (ik->is_initialized()) { 757 _klasses_got[klass_data->_got_index - 1] = ik; 758 } 759 760 // Initialize global symbols of the DSO to the corresponding VM symbol values. 761 link_global_lib_symbols(); 762 763 int methods_offset = klass_data->_compiled_methods_offset; 764 if (methods_offset >= 0) { 765 address methods_cnt_adr = _methods_offsets + methods_offset; 766 int methods_cnt = *(int*)methods_cnt_adr; 767 // Collect data about compiled methods 768 AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt); 769 AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4); 770 for (int i = 0; i < methods_cnt; ++i) { 771 AOTMethodOffsets* method_offsets = &methods_offsets[i]; 772 int code_id = method_offsets->_code_id; 773 if (_code_to_aot[code_id]._state == invalid) { 774 continue; // skip AOT methods slots which have been invalidated 775 } 776 AOTMethodData* method_data = &methods_data[i]; 777 const char* aot_name = _metaspace_names + method_offsets->_name_offset; 778 method_data->_name = aot_name; 779 method_data->_code = _code_space + method_offsets->_code_offset; 780 method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset); 781 method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset; 782 method_data->_metadata_size = method_offsets->_metadata_got_size; 783 // aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V" 784 int klass_len = build_u2_from((address)aot_name); 785 const char* method_name = aot_name + 2 + klass_len; 786 Method* m = AOTCodeHeap::find_method(ik, thread, method_name); 787 methodHandle mh(thread, m); 788 if (mh->code() != NULL) { // Does it have already compiled code? 789 continue; // Don't overwrite 790 } 791 publish_aot(mh, method_data, code_id); 792 } 793 } 794 return true; 795 } 796 797 AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const { 798 for (int index = start; index < _method_count; index++) { 799 if (_code_to_aot[index]._state != in_use) { 800 continue; // Skip uninitialized entries. 801 } 802 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 803 return aot; 804 } 805 return NULL; 806 } 807 808 void* AOTCodeHeap::first() const { 809 return next_in_use_at(0); 810 } 811 812 void* AOTCodeHeap::next(void* p) const { 813 AOTCompiledMethod *aot = (AOTCompiledMethod *)p; 814 int next_index = aot->method_index() + 1; 815 assert(next_index <= _method_count, ""); 816 if (next_index == _method_count) { 817 return NULL; 818 } 819 return next_in_use_at(next_index); 820 } 821 822 void* AOTCodeHeap::find_start(void* p) const { 823 if (!contains(p)) { 824 return NULL; 825 } 826 size_t offset = pointer_delta(p, low_boundary(), 1); 827 // Use segments table 828 size_t seg_idx = offset / _lib->config()->_codeSegmentSize; 829 if ((int)(_code_segments[seg_idx]) == 0xff) { 830 return NULL; 831 } 832 while (_code_segments[seg_idx] > 0) { 833 seg_idx -= (int)_code_segments[seg_idx]; 834 } 835 int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize; 836 int aot_index = *(int*)(_code_space + code_offset); 837 AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot; 838 assert(aot != NULL, "should find registered aot method"); 839 return aot; 840 } 841 842 AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const { 843 assert(contains(p), "should be here"); 844 return (AOTCompiledMethod *)find_start(p); 845 } 846 847 CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const { 848 return (CodeBlob*)AOTCodeHeap::find_start(start); 849 } 850 851 void AOTCodeHeap::oops_do(OopClosure* f) { 852 for (int i = 0; i < _oop_got_size; i++) { 853 oop* p = &_oop_got[i]; 854 if (*p == NULL) continue; // skip non-oops 855 f->do_oop(p); 856 } 857 for (int index = 0; index < _method_count; index++) { 858 if (_code_to_aot[index]._state != in_use) { 859 continue; // Skip uninitialized entries. 860 } 861 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 862 aot->do_oops(f); 863 } 864 } 865 866 // Scan only klasses_got cells which should have only Klass*, 867 // metadata_got cells are scanned only for alive AOT methods 868 // by AOTCompiledMethod::metadata_do(). 869 void AOTCodeHeap::got_metadata_do(void f(Metadata*)) { 870 for (int i = 1; i < _klasses_got_size; i++) { 871 Metadata** p = &_klasses_got[i]; 872 Metadata* md = *p; 873 if (md == NULL) continue; // skip non-oops 874 if (Metaspace::contains(md)) { 875 f(md); 876 } else { 877 intptr_t meta = (intptr_t)md; 878 fatal("Invalid value in _klasses_got[%d] = " INTPTR_FORMAT, i, meta); 879 } 880 } 881 } 882 883 void AOTCodeHeap::cleanup_inline_caches() { 884 for (int index = 0; index < _method_count; index++) { 885 if (_code_to_aot[index]._state != in_use) { 886 continue; // Skip uninitialized entries. 887 } 888 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 889 aot->cleanup_inline_caches(); 890 } 891 } 892 893 #ifdef ASSERT 894 int AOTCodeHeap::verify_icholder_relocations() { 895 int count = 0; 896 for (int index = 0; index < _method_count; index++) { 897 if (_code_to_aot[index]._state != in_use) { 898 continue; // Skip uninitialized entries. 899 } 900 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 901 count += aot->verify_icholder_relocations(); 902 } 903 return count; 904 } 905 #endif 906 907 void AOTCodeHeap::flush_evol_dependents_on(InstanceKlass* dependee) { 908 for (int index = 0; index < _method_count; index++) { 909 if (_code_to_aot[index]._state != in_use) { 910 continue; // Skip uninitialized entries. 911 } 912 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 913 aot->flush_evol_dependents_on(dependee); 914 } 915 } 916 917 void AOTCodeHeap::metadata_do(void f(Metadata*)) { 918 for (int index = 0; index < _method_count; index++) { 919 if (_code_to_aot[index]._state != in_use) { 920 continue; // Skip uninitialized entries. 921 } 922 AOTCompiledMethod* aot = _code_to_aot[index]._aot; 923 if (aot->_is_alive()) { 924 aot->metadata_do(f); 925 } 926 } 927 // Scan klasses_got cells. 928 got_metadata_do(f); 929 } 930 931 bool AOTCodeHeap::reconcile_dynamic_klass(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Klass *dyno_klass, const char *descriptor1, const char *descriptor2) { 932 const char * const descriptors[2] = {descriptor1, descriptor2}; 933 JavaThread *thread = JavaThread::current(); 934 ResourceMark rm(thread); 935 936 AOTKlassData* holder_data = find_klass(holder); 937 vmassert(holder_data != NULL, "klass %s not found", holder->signature_name()); 938 vmassert(is_dependent_method(holder, caller), "sanity"); 939 940 AOTKlassData* dyno_data = NULL; 941 bool adapter_failed = false; 942 char buf[64]; 943 int descriptor_index = 0; 944 // descriptors[0] specific name ("adapter:<method_id>") for matching 945 // descriptors[1] fall-back name ("adapter") for depdencies 946 while (descriptor_index < 2) { 947 const char *descriptor = descriptors[descriptor_index]; 948 if (descriptor == NULL) { 949 break; 950 } 951 jio_snprintf(buf, sizeof buf, "%s<%d:%d>", descriptor, holder_data->_class_id, index); 952 dyno_data = find_klass(buf); 953 if (dyno_data != NULL) { 954 break; 955 } 956 // If match failed then try fall-back for dependencies 957 ++descriptor_index; 958 adapter_failed = true; 959 } 960 961 if (dyno_data == NULL && dyno_klass == NULL) { 962 // all is well, no (appendix) at compile-time, and still none 963 return true; 964 } 965 966 if (dyno_data == NULL) { 967 // no (appendix) at build-time, but now there is 968 sweep_dependent_methods(holder_data); 969 return false; 970 } 971 972 if (adapter_failed) { 973 // adapter method mismatch 974 sweep_dependent_methods(holder_data); 975 sweep_dependent_methods(dyno_data); 976 return false; 977 } 978 979 if (dyno_klass == NULL) { 980 // (appendix) at build-time, none now 981 sweep_dependent_methods(holder_data); 982 sweep_dependent_methods(dyno_data); 983 return false; 984 } 985 986 // TODO: support array appendix object 987 if (!dyno_klass->is_instance_klass()) { 988 sweep_dependent_methods(holder_data); 989 sweep_dependent_methods(dyno_data); 990 return false; 991 } 992 993 InstanceKlass* dyno = InstanceKlass::cast(dyno_klass); 994 995 if (!dyno->is_anonymous()) { 996 if (_klasses_got[dyno_data->_got_index] != dyno) { 997 // compile-time class different from runtime class, fail and deoptimize 998 sweep_dependent_methods(holder_data); 999 sweep_dependent_methods(dyno_data); 1000 return false; 1001 } 1002 1003 if (dyno->is_initialized()) { 1004 _klasses_got[dyno_data->_got_index - 1] = dyno; 1005 } 1006 return true; 1007 } 1008 1009 // TODO: support anonymous supers 1010 if (!dyno->supers_have_passed_fingerprint_checks() || dyno->get_stored_fingerprint() != dyno_data->_fingerprint) { 1011 NOT_PRODUCT( aot_klasses_fp_miss++; ) 1012 log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT, 1013 dyno->internal_name(), dyno->is_shared() ? " (shared)" : "", 1014 _lib->name(), p2i(thread)); 1015 sweep_dependent_methods(holder_data); 1016 sweep_dependent_methods(dyno_data); 1017 return false; 1018 } 1019 1020 _klasses_got[dyno_data->_got_index] = dyno; 1021 if (dyno->is_initialized()) { 1022 _klasses_got[dyno_data->_got_index - 1] = dyno; 1023 } 1024 1025 // TODO: hook up any AOT code 1026 // load_klass_data(dyno_data, thread); 1027 return true; 1028 } 1029 1030 bool AOTCodeHeap::reconcile_dynamic_method(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Method *adapter_method) { 1031 InstanceKlass *adapter_klass = adapter_method->method_holder(); 1032 char buf[64]; 1033 jio_snprintf(buf, sizeof buf, "adapter:%d", adapter_method->method_idnum()); 1034 if (!reconcile_dynamic_klass(caller, holder, index, adapter_klass, buf, "adapter")) { 1035 return false; 1036 } 1037 return true; 1038 } 1039 1040 bool AOTCodeHeap::reconcile_dynamic_invoke(AOTCompiledMethod* caller, InstanceKlass* holder, int index, Method* adapter_method, Klass *appendix_klass) { 1041 if (!reconcile_dynamic_klass(caller, holder, index, appendix_klass, "appendix")) { 1042 return false; 1043 } 1044 1045 if (!reconcile_dynamic_method(caller, holder, index, adapter_method)) { 1046 return false; 1047 } 1048 1049 return true; 1050 }