1 /* 2 * Copyright (c) 2011, 2015, 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 #include "code/compiledIC.hpp" 26 #include "compiler/compileBroker.hpp" 27 #include "compiler/disassembler.hpp" 28 #include "oops/oop.inline.hpp" 29 #include "oops/objArrayOop.inline.hpp" 30 #include "runtime/javaCalls.hpp" 31 #include "jvmci/jvmciEnv.hpp" 32 #include "jvmci/jvmciCompiler.hpp" 33 #include "jvmci/jvmciCodeInstaller.hpp" 34 #include "jvmci/jvmciJavaClasses.hpp" 35 #include "jvmci/jvmciCompilerToVM.hpp" 36 #include "jvmci/jvmciRuntime.hpp" 37 #include "asm/register.hpp" 38 #include "classfile/vmSymbols.hpp" 39 #include "code/vmreg.hpp" 40 41 #ifdef TARGET_ARCH_x86 42 # include "vmreg_x86.inline.hpp" 43 #endif 44 #ifdef TARGET_ARCH_sparc 45 # include "vmreg_sparc.inline.hpp" 46 #endif 47 #ifdef TARGET_ARCH_zero 48 # include "vmreg_zero.inline.hpp" 49 #endif 50 #ifdef TARGET_ARCH_arm 51 # include "vmreg_arm.inline.hpp" 52 #endif 53 #ifdef TARGET_ARCH_ppc 54 # include "vmreg_ppc.inline.hpp" 55 #endif 56 57 58 // frequently used constants 59 // Allocate them with new so they are never destroyed (otherwise, a 60 // forced exit could destroy these objects while they are still in 61 // use). 62 ConstantOopWriteValue* CodeInstaller::_oop_null_scope_value = new (ResourceObj::C_HEAP, mtCompiler) ConstantOopWriteValue(NULL); 63 ConstantIntValue* CodeInstaller::_int_m1_scope_value = new (ResourceObj::C_HEAP, mtCompiler) ConstantIntValue(-1); 64 ConstantIntValue* CodeInstaller::_int_0_scope_value = new (ResourceObj::C_HEAP, mtCompiler) ConstantIntValue(0); 65 ConstantIntValue* CodeInstaller::_int_1_scope_value = new (ResourceObj::C_HEAP, mtCompiler) ConstantIntValue(1); 66 ConstantIntValue* CodeInstaller::_int_2_scope_value = new (ResourceObj::C_HEAP, mtCompiler) ConstantIntValue(2); 67 LocationValue* CodeInstaller::_illegal_value = new (ResourceObj::C_HEAP, mtCompiler) LocationValue(Location()); 68 69 Method* getMethodFromHotSpotMethod(oop hotspot_method) { 70 assert(hotspot_method != NULL && hotspot_method->is_a(HotSpotResolvedJavaMethodImpl::klass()), "sanity"); 71 return CompilerToVM::asMethod(hotspot_method); 72 } 73 74 VMReg getVMRegFromLocation(Handle location, int total_frame_size, TRAPS) { 75 if (location.is_null()) { 76 THROW_NULL(vmSymbols::java_lang_NullPointerException()); 77 } 78 79 Handle reg = code_Location::reg(location); 80 jint offset = code_Location::offset(location); 81 82 if (reg.not_null()) { 83 // register 84 jint number = code_Register::number(reg); 85 VMReg vmReg = CodeInstaller::get_hotspot_reg(number, CHECK_NULL); 86 if (offset % 4 == 0) { 87 return vmReg->next(offset / 4); 88 } else { 89 JVMCI_ERROR_NULL("unaligned subregister offset %d in oop map", offset); 90 } 91 } else { 92 // stack slot 93 if (offset % 4 == 0) { 94 return VMRegImpl::stack2reg(offset / 4); 95 } else { 96 JVMCI_ERROR_NULL("unaligned stack offset %d in oop map", offset); 97 } 98 } 99 } 100 101 // creates a HotSpot oop map out of the byte arrays provided by DebugInfo 102 OopMap* CodeInstaller::create_oop_map(Handle debug_info, TRAPS) { 103 Handle reference_map = DebugInfo::referenceMap(debug_info); 104 if (reference_map.is_null()) { 105 THROW_NULL(vmSymbols::java_lang_NullPointerException()); 106 } 107 if (!reference_map->is_a(HotSpotReferenceMap::klass())) { 108 JVMCI_ERROR_NULL("unknown reference map: %s", reference_map->klass()->signature_name()); 109 } 110 if (HotSpotReferenceMap::maxRegisterSize(reference_map) > 16) { 111 _has_wide_vector = true; 112 } 113 OopMap* map = new OopMap(_total_frame_size, _parameter_count); 114 objArrayHandle objects = HotSpotReferenceMap::objects(reference_map); 115 objArrayHandle derivedBase = HotSpotReferenceMap::derivedBase(reference_map); 116 typeArrayHandle sizeInBytes = HotSpotReferenceMap::sizeInBytes(reference_map); 117 if (objects.is_null() || derivedBase.is_null() || sizeInBytes.is_null()) { 118 THROW_NULL(vmSymbols::java_lang_NullPointerException()); 119 } 120 if (objects->length() != derivedBase->length() || objects->length() != sizeInBytes->length()) { 121 JVMCI_ERROR_NULL("arrays in reference map have different sizes: %d %d %d", objects->length(), derivedBase->length(), sizeInBytes->length()); 122 } 123 for (int i = 0; i < objects->length(); i++) { 124 Handle location = objects->obj_at(i); 125 Handle baseLocation = derivedBase->obj_at(i); 126 int bytes = sizeInBytes->int_at(i); 127 128 VMReg vmReg = getVMRegFromLocation(location, _total_frame_size, CHECK_NULL); 129 if (baseLocation.not_null()) { 130 // derived oop 131 #ifdef _LP64 132 if (bytes == 8) { 133 #else 134 if (bytes == 4) { 135 #endif 136 VMReg baseReg = getVMRegFromLocation(baseLocation, _total_frame_size, CHECK_NULL); 137 map->set_derived_oop(vmReg, baseReg); 138 } else { 139 JVMCI_ERROR_NULL("invalid derived oop size in ReferenceMap: %d", bytes); 140 } 141 #ifdef _LP64 142 } else if (bytes == 8) { 143 // wide oop 144 map->set_oop(vmReg); 145 } else if (bytes == 4) { 146 // narrow oop 147 map->set_narrowoop(vmReg); 148 #else 149 } else if (bytes == 4) { 150 map->set_oop(vmReg); 151 #endif 152 } else { 153 JVMCI_ERROR_NULL("invalid oop size in ReferenceMap: %d", bytes); 154 } 155 } 156 157 Handle callee_save_info = (oop) DebugInfo::calleeSaveInfo(debug_info); 158 if (callee_save_info.not_null()) { 159 objArrayHandle registers = RegisterSaveLayout::registers(callee_save_info); 160 typeArrayHandle slots = RegisterSaveLayout::slots(callee_save_info); 161 for (jint i = 0; i < slots->length(); i++) { 162 Handle jvmci_reg = registers->obj_at(i); 163 jint jvmci_reg_number = code_Register::number(jvmci_reg); 164 VMReg hotspot_reg = CodeInstaller::get_hotspot_reg(jvmci_reg_number, CHECK_NULL); 165 // HotSpot stack slots are 4 bytes 166 jint jvmci_slot = slots->int_at(i); 167 jint hotspot_slot = jvmci_slot * VMRegImpl::slots_per_word; 168 VMReg hotspot_slot_as_reg = VMRegImpl::stack2reg(hotspot_slot); 169 map->set_callee_saved(hotspot_slot_as_reg, hotspot_reg); 170 #ifdef _LP64 171 // (copied from generate_oop_map() in c1_Runtime1_x86.cpp) 172 VMReg hotspot_slot_hi_as_reg = VMRegImpl::stack2reg(hotspot_slot + 1); 173 map->set_callee_saved(hotspot_slot_hi_as_reg, hotspot_reg->next()); 174 #endif 175 } 176 } 177 return map; 178 } 179 180 Metadata* CodeInstaller::record_metadata_reference(Handle constant, TRAPS) { 181 oop obj = HotSpotMetaspaceConstantImpl::metaspaceObject(constant); 182 if (obj->is_a(HotSpotResolvedObjectTypeImpl::klass())) { 183 Klass* klass = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(obj)); 184 assert(!HotSpotMetaspaceConstantImpl::compressed(constant), "unexpected compressed klass pointer %s @ " INTPTR_FORMAT, klass->name()->as_C_string(), p2i(klass)); 185 int index = _oop_recorder->find_index(klass); 186 TRACE_jvmci_3("metadata[%d of %d] = %s", index, _oop_recorder->metadata_count(), klass->name()->as_C_string()); 187 return klass; 188 } else if (obj->is_a(HotSpotResolvedJavaMethodImpl::klass())) { 189 Method* method = (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(obj); 190 assert(!HotSpotMetaspaceConstantImpl::compressed(constant), "unexpected compressed method pointer %s @ " INTPTR_FORMAT, method->name()->as_C_string(), p2i(method)); 191 int index = _oop_recorder->find_index(method); 192 TRACE_jvmci_3("metadata[%d of %d] = %s", index, _oop_recorder->metadata_count(), method->name()->as_C_string()); 193 return method; 194 } else { 195 JVMCI_ERROR_NULL("unexpected metadata reference for constant of type %s", obj->klass()->signature_name()); 196 } 197 } 198 199 #ifdef _LP64 200 narrowKlass CodeInstaller::record_narrow_metadata_reference(Handle constant, TRAPS) { 201 oop obj = HotSpotMetaspaceConstantImpl::metaspaceObject(constant); 202 assert(HotSpotMetaspaceConstantImpl::compressed(constant), "unexpected uncompressed pointer"); 203 204 if (!obj->is_a(HotSpotResolvedObjectTypeImpl::klass())) { 205 JVMCI_ERROR_0("unexpected compressed pointer of type %s", obj->klass()->signature_name()); 206 } 207 208 Klass* klass = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(obj)); 209 int index = _oop_recorder->find_index(klass); 210 TRACE_jvmci_3("narrowKlass[%d of %d] = %s", index, _oop_recorder->metadata_count(), klass->name()->as_C_string()); 211 return Klass::encode_klass(klass); 212 } 213 #endif 214 215 Location::Type CodeInstaller::get_oop_type(Handle value) { 216 Handle lirKind = Value::lirKind(value); 217 Handle platformKind = LIRKind::platformKind(lirKind); 218 assert(LIRKind::referenceMask(lirKind) == 1, "unexpected referenceMask"); 219 220 if (platformKind == word_kind()) { 221 return Location::oop; 222 } else { 223 return Location::narrowoop; 224 } 225 } 226 227 ScopeValue* CodeInstaller::get_scope_value(Handle value, BasicType type, GrowableArray<ScopeValue*>* objects, ScopeValue* &second, TRAPS) { 228 second = NULL; 229 if (value.is_null()) { 230 THROW_NULL(vmSymbols::java_lang_NullPointerException()); 231 } else if (value == Value::ILLEGAL()) { 232 if (type != T_ILLEGAL) { 233 JVMCI_ERROR_NULL("unexpected illegal value, expected %s", basictype_to_str(type)); 234 } 235 return _illegal_value; 236 } else if (value->is_a(RegisterValue::klass())) { 237 Handle reg = RegisterValue::reg(value); 238 jint number = code_Register::number(reg); 239 VMReg hotspotRegister = get_hotspot_reg(number, CHECK_NULL); 240 if (is_general_purpose_reg(hotspotRegister)) { 241 Location::Type locationType; 242 if (type == T_OBJECT) { 243 locationType = get_oop_type(value); 244 } else if (type == T_LONG) { 245 locationType = Location::lng; 246 } else if (type == T_INT || type == T_FLOAT || type == T_SHORT || type == T_CHAR || type == T_BYTE || type == T_BOOLEAN) { 247 locationType = Location::int_in_long; 248 } else { 249 JVMCI_ERROR_NULL("unexpected type %s in cpu register", basictype_to_str(type)); 250 } 251 ScopeValue* value = new LocationValue(Location::new_reg_loc(locationType, hotspotRegister)); 252 if (type == T_LONG) { 253 second = value; 254 } 255 return value; 256 } else { 257 Location::Type locationType; 258 if (type == T_FLOAT) { 259 // this seems weird, but the same value is used in c1_LinearScan 260 locationType = Location::normal; 261 } else if (type == T_DOUBLE) { 262 locationType = Location::dbl; 263 } else { 264 JVMCI_ERROR_NULL("unexpected type %s in floating point register", basictype_to_str(type)); 265 } 266 ScopeValue* value = new LocationValue(Location::new_reg_loc(locationType, hotspotRegister)); 267 if (type == T_DOUBLE) { 268 second = value; 269 } 270 return value; 271 } 272 } else if (value->is_a(StackSlot::klass())) { 273 jint offset = StackSlot::offset(value); 274 if (StackSlot::addFrameSize(value)) { 275 offset += _total_frame_size; 276 } 277 278 Location::Type locationType; 279 if (type == T_OBJECT) { 280 locationType = get_oop_type(value); 281 } else if (type == T_LONG) { 282 locationType = Location::lng; 283 } else if (type == T_DOUBLE) { 284 locationType = Location::dbl; 285 } else if (type == T_INT || type == T_FLOAT || type == T_SHORT || type == T_CHAR || type == T_BYTE || type == T_BOOLEAN) { 286 locationType = Location::normal; 287 } else { 288 JVMCI_ERROR_NULL("unexpected type %s in stack slot", basictype_to_str(type)); 289 } 290 ScopeValue* value = new LocationValue(Location::new_stk_loc(locationType, offset)); 291 if (type == T_DOUBLE || type == T_LONG) { 292 second = value; 293 } 294 return value; 295 } else if (value->is_a(JavaConstant::klass())) { 296 if (value->is_a(PrimitiveConstant::klass())) { 297 if (value->is_a(RawConstant::klass())) { 298 jlong prim = PrimitiveConstant::primitive(value); 299 return new ConstantLongValue(prim); 300 } else { 301 BasicType constantType = JVMCIRuntime::kindToBasicType(PrimitiveConstant::kind(value), CHECK_NULL); 302 if (type != constantType) { 303 JVMCI_ERROR_NULL("primitive constant type doesn't match, expected %s but got %s", basictype_to_str(type), basictype_to_str(constantType)); 304 } 305 if (type == T_INT || type == T_FLOAT) { 306 jint prim = (jint)PrimitiveConstant::primitive(value); 307 switch (prim) { 308 case -1: return _int_m1_scope_value; 309 case 0: return _int_0_scope_value; 310 case 1: return _int_1_scope_value; 311 case 2: return _int_2_scope_value; 312 default: return new ConstantIntValue(prim); 313 } 314 } else if (type == T_LONG || type == T_DOUBLE) { 315 jlong prim = PrimitiveConstant::primitive(value); 316 second = _int_1_scope_value; 317 return new ConstantLongValue(prim); 318 } else { 319 JVMCI_ERROR_NULL("unexpected primitive constant type %s", basictype_to_str(type)); 320 } 321 } 322 } else if (value->is_a(NullConstant::klass()) || value->is_a(HotSpotCompressedNullConstant::klass())) { 323 if (type == T_OBJECT) { 324 return _oop_null_scope_value; 325 } else { 326 JVMCI_ERROR_NULL("unexpected null constant, expected %s", basictype_to_str(type)); 327 } 328 } else if (value->is_a(HotSpotObjectConstantImpl::klass())) { 329 if (type == T_OBJECT) { 330 oop obj = HotSpotObjectConstantImpl::object(value); 331 if (obj == NULL) { 332 JVMCI_ERROR_NULL("null value must be in NullConstant"); 333 } 334 return new ConstantOopWriteValue(JNIHandles::make_local(obj)); 335 } else { 336 JVMCI_ERROR_NULL("unexpected object constant, expected %s", basictype_to_str(type)); 337 } 338 } 339 } else if (value->is_a(VirtualObject::klass())) { 340 if (type == T_OBJECT) { 341 int id = VirtualObject::id(value); 342 if (0 <= id && id < objects->length()) { 343 ScopeValue* object = objects->at(id); 344 if (object != NULL) { 345 return object; 346 } 347 } 348 JVMCI_ERROR_NULL("unknown virtual object id %d", id); 349 } else { 350 JVMCI_ERROR_NULL("unexpected virtual object, expected %s", basictype_to_str(type)); 351 } 352 } 353 354 JVMCI_ERROR_NULL("unexpected value in scope: %s", value->klass()->signature_name()) 355 } 356 357 void CodeInstaller::record_object_value(ObjectValue* sv, Handle value, GrowableArray<ScopeValue*>* objects, TRAPS) { 358 Handle type = VirtualObject::type(value); 359 int id = VirtualObject::id(value); 360 oop javaMirror = HotSpotResolvedObjectTypeImpl::javaClass(type); 361 Klass* klass = java_lang_Class::as_Klass(javaMirror); 362 bool isLongArray = klass == Universe::longArrayKlassObj(); 363 364 objArrayHandle values = VirtualObject::values(value); 365 objArrayHandle slotKinds = VirtualObject::slotKinds(value); 366 for (jint i = 0; i < values->length(); i++) { 367 ScopeValue* cur_second = NULL; 368 Handle object = values->obj_at(i); 369 BasicType type = JVMCIRuntime::kindToBasicType(slotKinds->obj_at(i), CHECK); 370 ScopeValue* value = get_scope_value(object, type, objects, cur_second, CHECK); 371 372 if (isLongArray && cur_second == NULL) { 373 // we're trying to put ints into a long array... this isn't really valid, but it's used for some optimizations. 374 // add an int 0 constant 375 cur_second = _int_0_scope_value; 376 } 377 378 if (cur_second != NULL) { 379 sv->field_values()->append(cur_second); 380 } 381 assert(value != NULL, "missing value"); 382 sv->field_values()->append(value); 383 } 384 } 385 386 MonitorValue* CodeInstaller::get_monitor_value(Handle value, GrowableArray<ScopeValue*>* objects, TRAPS) { 387 if (value.is_null()) { 388 THROW_NULL(vmSymbols::java_lang_NullPointerException()); 389 } 390 if (!value->is_a(StackLockValue::klass())) { 391 JVMCI_ERROR_NULL("Monitors must be of type StackLockValue, got %s", value->klass()->signature_name()); 392 } 393 394 ScopeValue* second = NULL; 395 ScopeValue* owner_value = get_scope_value(StackLockValue::owner(value), T_OBJECT, objects, second, CHECK_NULL); 396 assert(second == NULL, "monitor cannot occupy two stack slots"); 397 398 ScopeValue* lock_data_value = get_scope_value(StackLockValue::slot(value), T_LONG, objects, second, CHECK_NULL); 399 assert(second == lock_data_value, "monitor is LONG value that occupies two stack slots"); 400 assert(lock_data_value->is_location(), "invalid monitor location"); 401 Location lock_data_loc = ((LocationValue*)lock_data_value)->location(); 402 403 bool eliminated = false; 404 if (StackLockValue::eliminated(value)) { 405 eliminated = true; 406 } 407 408 return new MonitorValue(owner_value, lock_data_loc, eliminated); 409 } 410 411 void CodeInstaller::initialize_dependencies(oop compiled_code, OopRecorder* recorder, TRAPS) { 412 JavaThread* thread = JavaThread::current(); 413 CompilerThread* compilerThread = thread->is_Compiler_thread() ? thread->as_CompilerThread() : NULL; 414 _oop_recorder = recorder; 415 _dependencies = new Dependencies(&_arena, _oop_recorder, compilerThread != NULL ? compilerThread->log() : NULL); 416 objArrayHandle assumptions = HotSpotCompiledCode::assumptions(compiled_code); 417 if (!assumptions.is_null()) { 418 int length = assumptions->length(); 419 for (int i = 0; i < length; ++i) { 420 Handle assumption = assumptions->obj_at(i); 421 if (!assumption.is_null()) { 422 if (assumption->klass() == Assumptions_NoFinalizableSubclass::klass()) { 423 assumption_NoFinalizableSubclass(assumption); 424 } else if (assumption->klass() == Assumptions_ConcreteSubtype::klass()) { 425 assumption_ConcreteSubtype(assumption); 426 } else if (assumption->klass() == Assumptions_LeafType::klass()) { 427 assumption_LeafType(assumption); 428 } else if (assumption->klass() == Assumptions_ConcreteMethod::klass()) { 429 assumption_ConcreteMethod(assumption); 430 } else if (assumption->klass() == Assumptions_CallSiteTargetValue::klass()) { 431 assumption_CallSiteTargetValue(assumption); 432 } else { 433 JVMCI_ERROR("unexpected Assumption subclass %s", assumption->klass()->signature_name()); 434 } 435 } 436 } 437 } 438 if (JvmtiExport::can_hotswap_or_post_breakpoint()) { 439 objArrayHandle methods = HotSpotCompiledCode::methods(compiled_code); 440 if (!methods.is_null()) { 441 int length = methods->length(); 442 for (int i = 0; i < length; ++i) { 443 Handle method_handle = methods->obj_at(i); 444 methodHandle method = getMethodFromHotSpotMethod(method_handle()); 445 _dependencies->assert_evol_method(method()); 446 } 447 } 448 } 449 } 450 451 RelocBuffer::~RelocBuffer() { 452 if (_buffer != NULL) { 453 FREE_C_HEAP_ARRAY(char, _buffer); 454 } 455 } 456 457 address RelocBuffer::begin() const { 458 if (_buffer != NULL) { 459 return (address) _buffer; 460 } 461 return (address) _static_buffer; 462 } 463 464 void RelocBuffer::set_size(size_t bytes) { 465 assert(bytes <= _size, "can't grow in size!"); 466 _size = bytes; 467 } 468 469 void RelocBuffer::ensure_size(size_t bytes) { 470 assert(_buffer == NULL, "can only be used once"); 471 assert(_size == 0, "can only be used once"); 472 if (bytes >= RelocBuffer::stack_size) { 473 _buffer = NEW_C_HEAP_ARRAY(char, bytes, mtInternal); 474 } 475 _size = bytes; 476 } 477 478 JVMCIEnv::CodeInstallResult CodeInstaller::gather_metadata(Handle target, Handle compiled_code, CodeMetadata& metadata, TRAPS) { 479 CodeBuffer buffer("JVMCI Compiler CodeBuffer for Metadata"); 480 jobject compiled_code_obj = JNIHandles::make_local(compiled_code()); 481 initialize_dependencies(JNIHandles::resolve(compiled_code_obj), NULL, CHECK_OK); 482 483 // Get instructions and constants CodeSections early because we need it. 484 _instructions = buffer.insts(); 485 _constants = buffer.consts(); 486 487 initialize_fields(target(), JNIHandles::resolve(compiled_code_obj), CHECK_OK); 488 JVMCIEnv::CodeInstallResult result = initialize_buffer(buffer, CHECK_OK); 489 if (result != JVMCIEnv::ok) { 490 return result; 491 } 492 process_exception_handlers(); 493 494 _debug_recorder->pcs_size(); // ehm, create the sentinel record 495 496 assert(_debug_recorder->pcs_length() >= 2, "must be at least 2"); 497 498 metadata.set_pc_desc(_debug_recorder->pcs(), _debug_recorder->pcs_length()); 499 metadata.set_scopes(_debug_recorder->stream()->buffer(), _debug_recorder->data_size()); 500 metadata.set_exception_table(&_exception_handler_table); 501 502 RelocBuffer* reloc_buffer = metadata.get_reloc_buffer(); 503 504 reloc_buffer->ensure_size(buffer.total_relocation_size()); 505 size_t size = (size_t) buffer.copy_relocations_to(reloc_buffer->begin(), (CodeBuffer::csize_t) reloc_buffer->size(), true); 506 reloc_buffer->set_size(size); 507 return JVMCIEnv::ok; 508 } 509 510 // constructor used to create a method 511 JVMCIEnv::CodeInstallResult CodeInstaller::install(JVMCICompiler* compiler, Handle target, Handle compiled_code, CodeBlob*& cb, Handle installed_code, Handle speculation_log, TRAPS) { 512 CodeBuffer buffer("JVMCI Compiler CodeBuffer"); 513 jobject compiled_code_obj = JNIHandles::make_local(compiled_code()); 514 OopRecorder* recorder = new OopRecorder(&_arena, true); 515 initialize_dependencies(JNIHandles::resolve(compiled_code_obj), recorder, CHECK_OK); 516 517 // Get instructions and constants CodeSections early because we need it. 518 _instructions = buffer.insts(); 519 _constants = buffer.consts(); 520 521 initialize_fields(target(), JNIHandles::resolve(compiled_code_obj), CHECK_OK); 522 JVMCIEnv::CodeInstallResult result = initialize_buffer(buffer, CHECK_OK); 523 if (result != JVMCIEnv::ok) { 524 return result; 525 } 526 process_exception_handlers(); 527 528 int stack_slots = _total_frame_size / HeapWordSize; // conversion to words 529 530 if (!compiled_code->is_a(HotSpotCompiledNmethod::klass())) { 531 oop stubName = HotSpotCompiledCode::name(compiled_code_obj); 532 char* name = strdup(java_lang_String::as_utf8_string(stubName)); 533 cb = RuntimeStub::new_runtime_stub(name, 534 &buffer, 535 CodeOffsets::frame_never_safe, 536 stack_slots, 537 _debug_recorder->_oopmaps, 538 false); 539 result = JVMCIEnv::ok; 540 } else { 541 nmethod* nm = NULL; 542 methodHandle method = getMethodFromHotSpotMethod(HotSpotCompiledNmethod::method(compiled_code)); 543 jint entry_bci = HotSpotCompiledNmethod::entryBCI(compiled_code); 544 jint id = HotSpotCompiledNmethod::id(compiled_code); 545 bool has_unsafe_access = HotSpotCompiledNmethod::hasUnsafeAccess(compiled_code) == JNI_TRUE; 546 JVMCIEnv* env = (JVMCIEnv*) (address) HotSpotCompiledNmethod::jvmciEnv(compiled_code); 547 if (id == -1) { 548 // Make sure a valid compile_id is associated with every compile 549 id = CompileBroker::assign_compile_id_unlocked(Thread::current(), method, entry_bci); 550 } 551 result = JVMCIEnv::register_method(method, nm, entry_bci, &_offsets, _custom_stack_area_offset, &buffer, 552 stack_slots, _debug_recorder->_oopmaps, &_exception_handler_table, 553 compiler, _debug_recorder, _dependencies, env, id, 554 has_unsafe_access, _has_wide_vector, installed_code, compiled_code, speculation_log); 555 cb = nm; 556 } 557 558 if (cb != NULL) { 559 // Make sure the pre-calculated constants section size was correct. 560 guarantee((cb->code_begin() - cb->content_begin()) >= _constants_size, "%d < %d", (int)(cb->code_begin() - cb->content_begin()), _constants_size); 561 } 562 return result; 563 } 564 565 void CodeInstaller::initialize_fields(oop target, oop compiled_code, TRAPS) { 566 if (compiled_code->is_a(HotSpotCompiledNmethod::klass())) { 567 Handle hotspotJavaMethod = HotSpotCompiledNmethod::method(compiled_code); 568 methodHandle method = getMethodFromHotSpotMethod(hotspotJavaMethod()); 569 _parameter_count = method->size_of_parameters(); 570 TRACE_jvmci_2("installing code for %s", method->name_and_sig_as_C_string()); 571 } else { 572 // Must be a HotSpotCompiledRuntimeStub. 573 // Only used in OopMap constructor for non-product builds 574 _parameter_count = 0; 575 } 576 _sites_handle = JNIHandles::make_local(HotSpotCompiledCode::sites(compiled_code)); 577 _exception_handlers_handle = JNIHandles::make_local(HotSpotCompiledCode::exceptionHandlers(compiled_code)); 578 579 _code_handle = JNIHandles::make_local(HotSpotCompiledCode::targetCode(compiled_code)); 580 _code_size = HotSpotCompiledCode::targetCodeSize(compiled_code); 581 _total_frame_size = HotSpotCompiledCode::totalFrameSize(compiled_code); 582 _custom_stack_area_offset = HotSpotCompiledCode::customStackAreaOffset(compiled_code); 583 584 // Pre-calculate the constants section size. This is required for PC-relative addressing. 585 _data_section_handle = JNIHandles::make_local(HotSpotCompiledCode::dataSection(compiled_code)); 586 if ((_constants->alignment() % HotSpotCompiledCode::dataSectionAlignment(compiled_code)) != 0) { 587 JVMCI_ERROR("invalid data section alignment: %d", HotSpotCompiledCode::dataSectionAlignment(compiled_code)); 588 } 589 _constants_size = data_section()->length(); 590 591 _data_section_patches_handle = JNIHandles::make_local(HotSpotCompiledCode::dataSectionPatches(compiled_code)); 592 593 #ifndef PRODUCT 594 _comments_handle = JNIHandles::make_local(HotSpotCompiledCode::comments(compiled_code)); 595 #endif 596 597 _next_call_type = INVOKE_INVALID; 598 599 _has_wide_vector = false; 600 601 oop arch = TargetDescription::arch(target); 602 _word_kind_handle = JNIHandles::make_local(Architecture::wordKind(arch)); 603 } 604 605 int CodeInstaller::estimate_stubs_size(TRAPS) { 606 // Estimate the number of static call stubs that might be emitted. 607 int static_call_stubs = 0; 608 objArrayOop sites = this->sites(); 609 for (int i = 0; i < sites->length(); i++) { 610 oop site = sites->obj_at(i); 611 if (site != NULL && site->is_a(CompilationResult_Mark::klass())) { 612 oop id_obj = CompilationResult_Mark::id(site); 613 if (id_obj != NULL) { 614 if (!java_lang_boxing_object::is_instance(id_obj, T_INT)) { 615 JVMCI_ERROR_0("expected Integer id, got %s", id_obj->klass()->signature_name()); 616 } 617 jint id = id_obj->int_field(java_lang_boxing_object::value_offset_in_bytes(T_INT)); 618 if (id == INVOKESTATIC || id == INVOKESPECIAL) { 619 static_call_stubs++; 620 } 621 } 622 } 623 } 624 return static_call_stubs * CompiledStaticCall::to_interp_stub_size(); 625 } 626 627 // perform data and call relocation on the CodeBuffer 628 JVMCIEnv::CodeInstallResult CodeInstaller::initialize_buffer(CodeBuffer& buffer, TRAPS) { 629 HandleMark hm; 630 objArrayHandle sites = this->sites(); 631 int locs_buffer_size = sites->length() * (relocInfo::length_limit + sizeof(relocInfo)); 632 633 // Allocate enough space in the stub section for the static call 634 // stubs. Stubs have extra relocs but they are managed by the stub 635 // section itself so they don't need to be accounted for in the 636 // locs_buffer above. 637 int stubs_size = estimate_stubs_size(CHECK_OK); 638 int total_size = round_to(_code_size, buffer.insts()->alignment()) + round_to(_constants_size, buffer.consts()->alignment()) + round_to(stubs_size, buffer.stubs()->alignment()); 639 640 if (total_size > JVMCINMethodSizeLimit) { 641 return JVMCIEnv::code_too_large; 642 } 643 644 buffer.initialize(total_size, locs_buffer_size); 645 if (buffer.blob() == NULL) { 646 return JVMCIEnv::cache_full; 647 } 648 buffer.initialize_stubs_size(stubs_size); 649 buffer.initialize_consts_size(_constants_size); 650 651 _debug_recorder = new DebugInformationRecorder(_oop_recorder); 652 _debug_recorder->set_oopmaps(new OopMapSet()); 653 654 buffer.initialize_oop_recorder(_oop_recorder); 655 656 // copy the constant data into the newly created CodeBuffer 657 address end_data = _constants->start() + _constants_size; 658 memcpy(_constants->start(), data_section()->base(T_BYTE), _constants_size); 659 _constants->set_end(end_data); 660 661 // copy the code into the newly created CodeBuffer 662 address end_pc = _instructions->start() + _code_size; 663 guarantee(_instructions->allocates2(end_pc), "initialize should have reserved enough space for all the code"); 664 memcpy(_instructions->start(), code()->base(T_BYTE), _code_size); 665 _instructions->set_end(end_pc); 666 667 for (int i = 0; i < data_section_patches()->length(); i++) { 668 Handle patch = data_section_patches()->obj_at(i); 669 if (patch.is_null()) { 670 THROW_(vmSymbols::java_lang_NullPointerException(), JVMCIEnv::ok); 671 } 672 Handle reference = CompilationResult_DataPatch::reference(patch); 673 if (reference.is_null()) { 674 THROW_(vmSymbols::java_lang_NullPointerException(), JVMCIEnv::ok); 675 } 676 if (!reference->is_a(CompilationResult_ConstantReference::klass())) { 677 JVMCI_ERROR_OK("invalid patch in data section: %s", reference->klass()->signature_name()); 678 } 679 Handle constant = CompilationResult_ConstantReference::constant(reference); 680 if (constant.is_null()) { 681 THROW_(vmSymbols::java_lang_NullPointerException(), JVMCIEnv::ok); 682 } 683 address dest = _constants->start() + CompilationResult_Site::pcOffset(patch); 684 if (constant->is_a(HotSpotMetaspaceConstantImpl::klass())) { 685 if (HotSpotMetaspaceConstantImpl::compressed(constant)) { 686 #ifdef _LP64 687 *((narrowKlass*) dest) = record_narrow_metadata_reference(constant, CHECK_OK); 688 #else 689 JVMCI_ERROR_OK("unexpected compressed Klass* in 32-bit mode"); 690 #endif 691 } else { 692 *((Metadata**) dest) = record_metadata_reference(constant, CHECK_OK); 693 } 694 } else if (constant->is_a(HotSpotObjectConstantImpl::klass())) { 695 Handle obj = HotSpotObjectConstantImpl::object(constant); 696 jobject value = JNIHandles::make_local(obj()); 697 int oop_index = _oop_recorder->find_index(value); 698 699 if (HotSpotObjectConstantImpl::compressed(constant)) { 700 #ifdef _LP64 701 _constants->relocate(dest, oop_Relocation::spec(oop_index), relocInfo::narrow_oop_in_const); 702 #else 703 JVMCI_ERROR_OK("unexpected compressed oop in 32-bit mode"); 704 #endif 705 } else { 706 _constants->relocate(dest, oop_Relocation::spec(oop_index)); 707 } 708 } else { 709 JVMCI_ERROR_OK("invalid constant in data section: %s", constant->klass()->signature_name()); 710 } 711 } 712 jint last_pc_offset = -1; 713 for (int i = 0; i < sites->length(); i++) { 714 Handle site = sites->obj_at(i); 715 if (site.is_null()) { 716 THROW_(vmSymbols::java_lang_NullPointerException(), JVMCIEnv::ok); 717 } 718 719 jint pc_offset = CompilationResult_Site::pcOffset(site); 720 721 if (site->is_a(CompilationResult_Call::klass())) { 722 TRACE_jvmci_4("call at %i", pc_offset); 723 site_Call(buffer, pc_offset, site, CHECK_OK); 724 } else if (site->is_a(CompilationResult_Infopoint::klass())) { 725 // three reasons for infopoints denote actual safepoints 726 oop reason = CompilationResult_Infopoint::reason(site); 727 if (InfopointReason::SAFEPOINT() == reason || InfopointReason::CALL() == reason || InfopointReason::IMPLICIT_EXCEPTION() == reason) { 728 TRACE_jvmci_4("safepoint at %i", pc_offset); 729 site_Safepoint(buffer, pc_offset, site, CHECK_OK); 730 } else if (InfopointReason::METHOD_START() == reason || InfopointReason::METHOD_END() == reason || InfopointReason::LINE_NUMBER() == reason) { 731 site_Infopoint(buffer, pc_offset, site, CHECK_OK); 732 } else { 733 JVMCI_ERROR_OK("unknown infopoint reason at %i", pc_offset); 734 } 735 } else if (site->is_a(CompilationResult_DataPatch::klass())) { 736 TRACE_jvmci_4("datapatch at %i", pc_offset); 737 site_DataPatch(buffer, pc_offset, site, CHECK_OK); 738 } else if (site->is_a(CompilationResult_Mark::klass())) { 739 TRACE_jvmci_4("mark at %i", pc_offset); 740 site_Mark(buffer, pc_offset, site, CHECK_OK); 741 } else { 742 JVMCI_ERROR_OK("unexpected site subclass: %s", site->klass()->signature_name()); 743 } 744 last_pc_offset = pc_offset; 745 746 if (CodeInstallSafepointChecks && SafepointSynchronize::do_call_back()) { 747 // this is a hacky way to force a safepoint check but nothing else was jumping out at me. 748 ThreadToNativeFromVM ttnfv(JavaThread::current()); 749 } 750 } 751 752 #ifndef PRODUCT 753 if (comments() != NULL) { 754 for (int i = 0; i < comments()->length(); i++) { 755 oop comment = comments()->obj_at(i); 756 assert(comment->is_a(HotSpotCompiledCode_Comment::klass()), "cce"); 757 jint offset = HotSpotCompiledCode_Comment::pcOffset(comment); 758 char* text = java_lang_String::as_utf8_string(HotSpotCompiledCode_Comment::text(comment)); 759 buffer.block_comment(offset, text); 760 } 761 } 762 #endif 763 return JVMCIEnv::ok; 764 } 765 766 void CodeInstaller::assumption_NoFinalizableSubclass(Handle assumption) { 767 Handle receiverType_handle = Assumptions_NoFinalizableSubclass::receiverType(assumption()); 768 Klass* receiverType = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(receiverType_handle)); 769 _dependencies->assert_has_no_finalizable_subclasses(receiverType); 770 } 771 772 void CodeInstaller::assumption_ConcreteSubtype(Handle assumption) { 773 Handle context_handle = Assumptions_ConcreteSubtype::context(assumption()); 774 Handle subtype_handle = Assumptions_ConcreteSubtype::subtype(assumption()); 775 Klass* context = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(context_handle)); 776 Klass* subtype = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(subtype_handle)); 777 778 assert(context->is_abstract(), ""); 779 _dependencies->assert_abstract_with_unique_concrete_subtype(context, subtype); 780 } 781 782 void CodeInstaller::assumption_LeafType(Handle assumption) { 783 Handle context_handle = Assumptions_LeafType::context(assumption()); 784 Klass* context = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(context_handle)); 785 786 _dependencies->assert_leaf_type(context); 787 } 788 789 void CodeInstaller::assumption_ConcreteMethod(Handle assumption) { 790 Handle impl_handle = Assumptions_ConcreteMethod::impl(assumption()); 791 Handle context_handle = Assumptions_ConcreteMethod::context(assumption()); 792 793 methodHandle impl = getMethodFromHotSpotMethod(impl_handle()); 794 Klass* context = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(context_handle)); 795 796 _dependencies->assert_unique_concrete_method(context, impl()); 797 } 798 799 void CodeInstaller::assumption_CallSiteTargetValue(Handle assumption) { 800 Handle callSite = Assumptions_CallSiteTargetValue::callSite(assumption()); 801 Handle methodHandle = Assumptions_CallSiteTargetValue::methodHandle(assumption()); 802 803 _dependencies->assert_call_site_target_value(callSite(), methodHandle()); 804 } 805 806 void CodeInstaller::process_exception_handlers() { 807 if (exception_handlers() != NULL) { 808 objArrayOop handlers = exception_handlers(); 809 for (int i = 0; i < handlers->length(); i++) { 810 oop exc = handlers->obj_at(i); 811 jint pc_offset = CompilationResult_Site::pcOffset(exc); 812 jint handler_offset = CompilationResult_ExceptionHandler::handlerPos(exc); 813 814 // Subtable header 815 _exception_handler_table.add_entry(HandlerTableEntry(1, pc_offset, 0)); 816 817 // Subtable entry 818 _exception_handler_table.add_entry(HandlerTableEntry(-1, handler_offset, 0)); 819 } 820 } 821 } 822 823 // If deoptimization happens, the interpreter should reexecute these bytecodes. 824 // This function mainly helps the compilers to set up the reexecute bit. 825 static bool bytecode_should_reexecute(Bytecodes::Code code) { 826 switch (code) { 827 case Bytecodes::_invokedynamic: 828 case Bytecodes::_invokevirtual: 829 case Bytecodes::_invokeinterface: 830 case Bytecodes::_invokespecial: 831 case Bytecodes::_invokestatic: 832 return false; 833 default: 834 return true; 835 } 836 return true; 837 } 838 839 GrowableArray<ScopeValue*>* CodeInstaller::record_virtual_objects(Handle debug_info, TRAPS) { 840 objArrayHandle virtualObjects = DebugInfo::virtualObjectMapping(debug_info); 841 if (virtualObjects.is_null()) { 842 return NULL; 843 } 844 GrowableArray<ScopeValue*>* objects = new GrowableArray<ScopeValue*>(virtualObjects->length(), virtualObjects->length(), NULL); 845 // Create the unique ObjectValues 846 for (int i = 0; i < virtualObjects->length(); i++) { 847 Handle value = virtualObjects->obj_at(i); 848 int id = VirtualObject::id(value); 849 Handle type = VirtualObject::type(value); 850 oop javaMirror = HotSpotResolvedObjectTypeImpl::javaClass(type); 851 ObjectValue* sv = new ObjectValue(id, new ConstantOopWriteValue(JNIHandles::make_local(Thread::current(), javaMirror))); 852 if (id < 0 || id >= objects->length()) { 853 JVMCI_ERROR_NULL("virtual object id %d out of bounds", id); 854 } 855 if (objects->at(id) != NULL) { 856 JVMCI_ERROR_NULL("duplicate virtual object id %d", id); 857 } 858 objects->at_put(id, sv); 859 } 860 // All the values which could be referenced by the VirtualObjects 861 // exist, so now describe all the VirtualObjects themselves. 862 for (int i = 0; i < virtualObjects->length(); i++) { 863 Handle value = virtualObjects->obj_at(i); 864 int id = VirtualObject::id(value); 865 record_object_value(objects->at(id)->as_ObjectValue(), value, objects, CHECK_NULL); 866 } 867 _debug_recorder->dump_object_pool(objects); 868 return objects; 869 } 870 871 void CodeInstaller::record_scope(jint pc_offset, Handle debug_info, TRAPS) { 872 Handle position = DebugInfo::bytecodePosition(debug_info); 873 if (position.is_null()) { 874 // Stubs do not record scope info, just oop maps 875 return; 876 } 877 878 GrowableArray<ScopeValue*>* objectMapping = record_virtual_objects(debug_info, CHECK); 879 record_scope(pc_offset, position, objectMapping, CHECK); 880 } 881 882 void CodeInstaller::record_scope(jint pc_offset, Handle position, GrowableArray<ScopeValue*>* objects, TRAPS) { 883 Handle frame; 884 if (position->is_a(BytecodeFrame::klass())) { 885 frame = position; 886 } 887 Handle caller_frame = BytecodePosition::caller(position); 888 if (caller_frame.not_null()) { 889 record_scope(pc_offset, caller_frame, objects, CHECK); 890 } 891 892 Handle hotspot_method = BytecodePosition::method(position); 893 Method* method = getMethodFromHotSpotMethod(hotspot_method()); 894 jint bci = BytecodePosition::bci(position); 895 if (bci == BytecodeFrame::BEFORE_BCI()) { 896 bci = SynchronizationEntryBCI; 897 } 898 899 TRACE_jvmci_2("Recording scope pc_offset=%d bci=%d method=%s", pc_offset, bci, method->name_and_sig_as_C_string()); 900 901 bool reexecute = false; 902 if (frame.not_null()) { 903 if (bci == SynchronizationEntryBCI){ 904 reexecute = false; 905 } else { 906 Bytecodes::Code code = Bytecodes::java_code_at(method, method->bcp_from(bci)); 907 reexecute = bytecode_should_reexecute(code); 908 if (frame.not_null()) { 909 reexecute = (BytecodeFrame::duringCall(frame) == JNI_FALSE); 910 } 911 } 912 } 913 914 DebugToken* locals_token = NULL; 915 DebugToken* expressions_token = NULL; 916 DebugToken* monitors_token = NULL; 917 bool throw_exception = false; 918 919 if (frame.not_null()) { 920 jint local_count = BytecodeFrame::numLocals(frame); 921 jint expression_count = BytecodeFrame::numStack(frame); 922 jint monitor_count = BytecodeFrame::numLocks(frame); 923 objArrayHandle values = BytecodeFrame::values(frame); 924 objArrayHandle slotKinds = BytecodeFrame::slotKinds(frame); 925 926 if (values.is_null() || slotKinds.is_null()) { 927 THROW(vmSymbols::java_lang_NullPointerException()); 928 } 929 if (local_count + expression_count + monitor_count != values->length()) { 930 JVMCI_ERROR("unexpected values length %d in scope (%d locals, %d expressions, %d monitors)", values->length(), local_count, expression_count, monitor_count); 931 } 932 if (local_count + expression_count != slotKinds->length()) { 933 JVMCI_ERROR("unexpected slotKinds length %d in scope (%d locals, %d expressions)", slotKinds->length(), local_count, expression_count); 934 } 935 936 GrowableArray<ScopeValue*>* locals = local_count > 0 ? new GrowableArray<ScopeValue*> (local_count) : NULL; 937 GrowableArray<ScopeValue*>* expressions = expression_count > 0 ? new GrowableArray<ScopeValue*> (expression_count) : NULL; 938 GrowableArray<MonitorValue*>* monitors = monitor_count > 0 ? new GrowableArray<MonitorValue*> (monitor_count) : NULL; 939 940 TRACE_jvmci_2("Scope at bci %d with %d values", bci, values->length()); 941 TRACE_jvmci_2("%d locals %d expressions, %d monitors", local_count, expression_count, monitor_count); 942 943 for (jint i = 0; i < values->length(); i++) { 944 ScopeValue* second = NULL; 945 Handle value = values->obj_at(i); 946 if (i < local_count) { 947 BasicType type = JVMCIRuntime::kindToBasicType(slotKinds->obj_at(i), CHECK); 948 ScopeValue* first = get_scope_value(value, type, objects, second, CHECK); 949 if (second != NULL) { 950 locals->append(second); 951 } 952 locals->append(first); 953 } else if (i < local_count + expression_count) { 954 BasicType type = JVMCIRuntime::kindToBasicType(slotKinds->obj_at(i), CHECK); 955 ScopeValue* first = get_scope_value(value, type, objects, second, CHECK); 956 if (second != NULL) { 957 expressions->append(second); 958 } 959 expressions->append(first); 960 } else { 961 MonitorValue *monitor = get_monitor_value(value, objects, CHECK); 962 monitors->append(monitor); 963 } 964 if (second != NULL) { 965 i++; 966 if (i >= values->length() || values->obj_at(i) != Value::ILLEGAL()) { 967 JVMCI_ERROR("double-slot value not followed by Value.ILLEGAL"); 968 } 969 } 970 } 971 972 locals_token = _debug_recorder->create_scope_values(locals); 973 expressions_token = _debug_recorder->create_scope_values(expressions); 974 monitors_token = _debug_recorder->create_monitor_values(monitors); 975 976 throw_exception = BytecodeFrame::rethrowException(frame) == JNI_TRUE; 977 } 978 979 _debug_recorder->describe_scope(pc_offset, method, NULL, bci, reexecute, throw_exception, false, false, 980 locals_token, expressions_token, monitors_token); 981 } 982 983 void CodeInstaller::site_Safepoint(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS) { 984 Handle debug_info = CompilationResult_Infopoint::debugInfo(site); 985 if (debug_info.is_null()) { 986 JVMCI_ERROR("debug info expected at safepoint at %i", pc_offset); 987 } 988 989 // address instruction = _instructions->start() + pc_offset; 990 // jint next_pc_offset = Assembler::locate_next_instruction(instruction) - _instructions->start(); 991 OopMap *map = create_oop_map(debug_info, CHECK); 992 _debug_recorder->add_safepoint(pc_offset, map); 993 record_scope(pc_offset, debug_info, CHECK); 994 _debug_recorder->end_safepoint(pc_offset); 995 } 996 997 void CodeInstaller::site_Infopoint(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS) { 998 Handle debug_info = CompilationResult_Infopoint::debugInfo(site); 999 if (debug_info.is_null()) { 1000 JVMCI_ERROR("debug info expected at infopoint at %i", pc_offset); 1001 } 1002 1003 _debug_recorder->add_non_safepoint(pc_offset); 1004 record_scope(pc_offset, debug_info, CHECK); 1005 _debug_recorder->end_non_safepoint(pc_offset); 1006 } 1007 1008 void CodeInstaller::site_Call(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS) { 1009 Handle target = CompilationResult_Call::target(site); 1010 InstanceKlass* target_klass = InstanceKlass::cast(target->klass()); 1011 1012 Handle hotspot_method; // JavaMethod 1013 Handle foreign_call; 1014 1015 if (target_klass->is_subclass_of(SystemDictionary::HotSpotForeignCallTarget_klass())) { 1016 foreign_call = target; 1017 } else { 1018 hotspot_method = target; 1019 } 1020 1021 Handle debug_info = CompilationResult_Call::debugInfo(site); 1022 1023 assert(hotspot_method.not_null() ^ foreign_call.not_null(), "Call site needs exactly one type"); 1024 1025 NativeInstruction* inst = nativeInstruction_at(_instructions->start() + pc_offset); 1026 jint next_pc_offset = CodeInstaller::pd_next_offset(inst, pc_offset, hotspot_method, CHECK); 1027 1028 if (debug_info.not_null()) { 1029 OopMap *map = create_oop_map(debug_info, CHECK); 1030 _debug_recorder->add_safepoint(next_pc_offset, map); 1031 record_scope(next_pc_offset, debug_info, CHECK); 1032 } 1033 1034 if (foreign_call.not_null()) { 1035 jlong foreign_call_destination = HotSpotForeignCallTarget::address(foreign_call); 1036 CodeInstaller::pd_relocate_ForeignCall(inst, foreign_call_destination, CHECK); 1037 } else { // method != NULL 1038 if (debug_info.is_null()) { 1039 JVMCI_ERROR("debug info expected at call at %i", pc_offset); 1040 } 1041 1042 TRACE_jvmci_3("method call"); 1043 CodeInstaller::pd_relocate_JavaMethod(hotspot_method, pc_offset, CHECK); 1044 if (_next_call_type == INVOKESTATIC || _next_call_type == INVOKESPECIAL) { 1045 // Need a static call stub for transitions from compiled to interpreted. 1046 CompiledStaticCall::emit_to_interp_stub(buffer, _instructions->start() + pc_offset); 1047 } 1048 } 1049 1050 _next_call_type = INVOKE_INVALID; 1051 1052 if (debug_info.not_null()) { 1053 _debug_recorder->end_safepoint(next_pc_offset); 1054 } 1055 } 1056 1057 void CodeInstaller::site_DataPatch(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS) { 1058 Handle reference = CompilationResult_DataPatch::reference(site); 1059 if (reference.is_null()) { 1060 THROW(vmSymbols::java_lang_NullPointerException()); 1061 } else if (reference->is_a(CompilationResult_ConstantReference::klass())) { 1062 Handle constant = CompilationResult_ConstantReference::constant(reference); 1063 if (constant.is_null()) { 1064 THROW(vmSymbols::java_lang_NullPointerException()); 1065 } else if (constant->is_a(HotSpotObjectConstantImpl::klass())) { 1066 pd_patch_OopConstant(pc_offset, constant, CHECK); 1067 } else if (constant->is_a(HotSpotMetaspaceConstantImpl::klass())) { 1068 pd_patch_MetaspaceConstant(pc_offset, constant, CHECK); 1069 } else { 1070 JVMCI_ERROR("unknown constant type in data patch: %s", constant->klass()->signature_name()); 1071 } 1072 } else if (reference->is_a(CompilationResult_DataSectionReference::klass())) { 1073 int data_offset = CompilationResult_DataSectionReference::offset(reference); 1074 if (0 <= data_offset && data_offset < _constants_size) { 1075 pd_patch_DataSectionReference(pc_offset, data_offset); 1076 } else { 1077 JVMCI_ERROR("data offset 0x%X points outside data section (size 0x%X)", data_offset, _constants_size); 1078 } 1079 } else { 1080 JVMCI_ERROR("unknown data patch type: %s", reference->klass()->signature_name()); 1081 } 1082 } 1083 1084 void CodeInstaller::site_Mark(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS) { 1085 Handle id_obj = CompilationResult_Mark::id(site); 1086 1087 if (id_obj.not_null()) { 1088 if (!java_lang_boxing_object::is_instance(id_obj(), T_INT)) { 1089 JVMCI_ERROR("expected Integer id, got %s", id_obj->klass()->signature_name()); 1090 } 1091 jint id = id_obj->int_field(java_lang_boxing_object::value_offset_in_bytes(T_INT)); 1092 1093 address pc = _instructions->start() + pc_offset; 1094 1095 switch (id) { 1096 case UNVERIFIED_ENTRY: 1097 _offsets.set_value(CodeOffsets::Entry, pc_offset); 1098 break; 1099 case VERIFIED_ENTRY: 1100 _offsets.set_value(CodeOffsets::Verified_Entry, pc_offset); 1101 break; 1102 case OSR_ENTRY: 1103 _offsets.set_value(CodeOffsets::OSR_Entry, pc_offset); 1104 break; 1105 case EXCEPTION_HANDLER_ENTRY: 1106 _offsets.set_value(CodeOffsets::Exceptions, pc_offset); 1107 break; 1108 case DEOPT_HANDLER_ENTRY: 1109 _offsets.set_value(CodeOffsets::Deopt, pc_offset); 1110 break; 1111 case INVOKEVIRTUAL: 1112 case INVOKEINTERFACE: 1113 case INLINE_INVOKE: 1114 case INVOKESTATIC: 1115 case INVOKESPECIAL: 1116 _next_call_type = (MarkId) id; 1117 _invoke_mark_pc = pc; 1118 break; 1119 case POLL_NEAR: 1120 case POLL_FAR: 1121 case POLL_RETURN_NEAR: 1122 case POLL_RETURN_FAR: 1123 pd_relocate_poll(pc, id, CHECK); 1124 break; 1125 case CARD_TABLE_SHIFT: 1126 case CARD_TABLE_ADDRESS: 1127 case HEAP_TOP_ADDRESS: 1128 case HEAP_END_ADDRESS: 1129 case NARROW_KLASS_BASE_ADDRESS: 1130 case CRC_TABLE_ADDRESS: 1131 break; 1132 default: 1133 JVMCI_ERROR("invalid mark id: %d", id); 1134 break; 1135 } 1136 } 1137 } 1138