1 /* 2 * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #include "precompiled.hpp" 25 #include "ci/ciUtilities.inline.hpp" 26 #include "classfile/javaClasses.inline.hpp" 27 #include "code/scopeDesc.hpp" 28 #include "interpreter/linkResolver.hpp" 29 #include "memory/oopFactory.hpp" 30 #include "oops/cpCache.inline.hpp" 31 #include "oops/generateOopMap.hpp" 32 #include "oops/method.inline.hpp" 33 #include "oops/objArrayOop.inline.hpp" 34 #include "oops/typeArrayOop.inline.hpp" 35 #include "compiler/compileBroker.hpp" 36 #include "compiler/disassembler.hpp" 37 #include "jvmci/jvmciCompilerToVM.hpp" 38 #include "jvmci/jvmciCodeInstaller.hpp" 39 #include "jvmci/jvmciRuntime.hpp" 40 #include "runtime/fieldDescriptor.inline.hpp" 41 #include "runtime/flags/jvmFlag.hpp" 42 #include "runtime/frame.inline.hpp" 43 #include "runtime/handles.inline.hpp" 44 #include "runtime/interfaceSupport.inline.hpp" 45 #include "runtime/jniHandles.inline.hpp" 46 #include "runtime/timerTrace.hpp" 47 #include "runtime/vframe_hp.hpp" 48 49 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) { 50 _thread = thread; 51 _klass = klass; 52 if (klass != NULL) { 53 _holder = Handle(_thread, klass->klass_holder()); 54 } 55 } 56 57 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) { 58 _klass = klass; 59 if (klass != NULL) { 60 _holder = Handle(_thread, klass->klass_holder()); 61 } 62 return *this; 63 } 64 65 void JNIHandleMark::push_jni_handle_block() { 66 JavaThread* thread = JavaThread::current(); 67 if (thread != NULL) { 68 // Allocate a new block for JNI handles. 69 // Inlined code from jni_PushLocalFrame() 70 JNIHandleBlock* java_handles = ((JavaThread*)thread)->active_handles(); 71 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); 72 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); 73 compile_handles->set_pop_frame_link(java_handles); 74 thread->set_active_handles(compile_handles); 75 } 76 } 77 78 void JNIHandleMark::pop_jni_handle_block() { 79 JavaThread* thread = JavaThread::current(); 80 if (thread != NULL) { 81 // Release our JNI handle block 82 JNIHandleBlock* compile_handles = thread->active_handles(); 83 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); 84 thread->set_active_handles(java_handles); 85 compile_handles->set_pop_frame_link(NULL); 86 JNIHandleBlock::release_block(compile_handles, thread); // may block 87 } 88 } 89 90 // Entry to native method implementation that transitions current thread to '_thread_in_vm'. 91 #define C2V_VMENTRY(result_type, name, signature) \ 92 JNIEXPORT result_type JNICALL c2v_ ## name signature { \ 93 TRACE_jvmci_1("CompilerToVM::" #name); \ 94 TRACE_CALL(result_type, jvmci_ ## name signature) \ 95 JVMCI_VM_ENTRY_MARK; \ 96 97 #define C2V_END } 98 99 oop CompilerToVM::get_jvmci_method(const methodHandle& method, TRAPS) { 100 if (method() != NULL) { 101 JavaValue result(T_OBJECT); 102 JavaCallArguments args; 103 args.push_long((jlong) (address) method()); 104 JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedJavaMethodImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::method_fromMetaspace_signature(), &args, CHECK_NULL); 105 106 return (oop)result.get_jobject(); 107 } 108 return NULL; 109 } 110 111 oop CompilerToVM::get_jvmci_type(JVMCIKlassHandle& klass, TRAPS) { 112 if (!klass.is_null()) { 113 JavaValue result(T_OBJECT); 114 JavaCallArguments args; 115 args.push_oop(Handle(THREAD, klass->java_mirror())); 116 JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedObjectTypeImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::klass_fromMetaspace_signature(), &args, CHECK_NULL); 117 118 return (oop)result.get_jobject(); 119 } 120 return NULL; 121 } 122 123 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) { 124 assert(_index < _args->length(), "out of bounds"); 125 oop arg=((objArrayOop) (_args))->obj_at(_index++); 126 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch"); 127 return Handle(Thread::current(), arg); 128 } 129 130 jobjectArray readConfiguration0(JNIEnv *env, TRAPS); 131 132 C2V_VMENTRY(jobjectArray, readConfiguration, (JNIEnv *env)) 133 jobjectArray config = readConfiguration0(env, CHECK_NULL); 134 return config; 135 C2V_END 136 137 C2V_VMENTRY(jobject, getFlagValue, (JNIEnv *, jobject c2vm, jobject name_handle)) 138 #define RETURN_BOXED_LONG(value) oop box; jvalue p; p.j = (jlong) (value); box = java_lang_boxing_object::create(T_LONG, &p, CHECK_NULL); return JNIHandles::make_local(THREAD, box); 139 #define RETURN_BOXED_DOUBLE(value) oop box; jvalue p; p.d = (jdouble) (value); box = java_lang_boxing_object::create(T_DOUBLE, &p, CHECK_NULL); return JNIHandles::make_local(THREAD, box); 140 Handle name(THREAD, JNIHandles::resolve(name_handle)); 141 if (name.is_null()) { 142 THROW_0(vmSymbols::java_lang_NullPointerException()); 143 } 144 ResourceMark rm; 145 const char* cstring = java_lang_String::as_utf8_string(name()); 146 JVMFlag* flag = JVMFlag::find_flag(cstring, strlen(cstring), /* allow_locked */ true, /* return_flag */ true); 147 if (flag == NULL) { 148 return c2vm; 149 } 150 if (flag->is_bool()) { 151 jvalue prim; 152 prim.z = flag->get_bool(); 153 oop box = java_lang_boxing_object::create(T_BOOLEAN, &prim, CHECK_NULL); 154 return JNIHandles::make_local(THREAD, box); 155 } else if (flag->is_ccstr()) { 156 Handle value = java_lang_String::create_from_str(flag->get_ccstr(), CHECK_NULL); 157 return JNIHandles::make_local(THREAD, value()); 158 } else if (flag->is_intx()) { 159 RETURN_BOXED_LONG(flag->get_intx()); 160 } else if (flag->is_int()) { 161 RETURN_BOXED_LONG(flag->get_int()); 162 } else if (flag->is_uint()) { 163 RETURN_BOXED_LONG(flag->get_uint()); 164 } else if (flag->is_uint64_t()) { 165 RETURN_BOXED_LONG(flag->get_uint64_t()); 166 } else if (flag->is_size_t()) { 167 RETURN_BOXED_LONG(flag->get_size_t()); 168 } else if (flag->is_uintx()) { 169 RETURN_BOXED_LONG(flag->get_uintx()); 170 } else if (flag->is_double()) { 171 RETURN_BOXED_DOUBLE(flag->get_double()); 172 } else { 173 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->_name, flag->_type); 174 } 175 #undef RETURN_BOXED_LONG 176 #undef RETURN_BOXED_DOUBLE 177 C2V_END 178 179 C2V_VMENTRY(jbyteArray, getBytecode, (JNIEnv *, jobject, jobject jvmci_method)) 180 methodHandle method = CompilerToVM::asMethod(jvmci_method); 181 ResourceMark rm; 182 183 int code_size = method->code_size(); 184 typeArrayOop reconstituted_code = oopFactory::new_byteArray(code_size, CHECK_NULL); 185 186 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten"); 187 // iterate over all bytecodes and replace non-Java bytecodes 188 189 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) { 190 Bytecodes::Code code = s.code(); 191 Bytecodes::Code raw_code = s.raw_code(); 192 int bci = s.bci(); 193 int len = s.instruction_size(); 194 195 // Restore original byte code. 196 reconstituted_code->byte_at_put(bci, (jbyte) (s.is_wide()? Bytecodes::_wide : code)); 197 if (len > 1) { 198 memcpy(reconstituted_code->byte_at_addr(bci + 1), s.bcp()+1, len-1); 199 } 200 201 if (len > 1) { 202 // Restore the big-endian constant pool indexes. 203 // Cf. Rewriter::scan_method 204 switch (code) { 205 case Bytecodes::_getstatic: 206 case Bytecodes::_putstatic: 207 case Bytecodes::_getfield: 208 case Bytecodes::_putfield: 209 case Bytecodes::_invokevirtual: 210 case Bytecodes::_invokespecial: 211 case Bytecodes::_invokestatic: 212 case Bytecodes::_invokeinterface: 213 case Bytecodes::_invokehandle: { 214 int cp_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1)); 215 Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index); 216 break; 217 } 218 219 case Bytecodes::_invokedynamic: { 220 int cp_index = Bytes::get_native_u4((address) reconstituted_code->byte_at_addr(bci + 1)); 221 Bytes::put_Java_u4((address) reconstituted_code->byte_at_addr(bci + 1), (u4) cp_index); 222 break; 223 } 224 225 default: 226 break; 227 } 228 229 // Not all ldc byte code are rewritten. 230 switch (raw_code) { 231 case Bytecodes::_fast_aldc: { 232 int cpc_index = reconstituted_code->byte_at(bci + 1) & 0xff; 233 int cp_index = method->constants()->object_to_cp_index(cpc_index); 234 assert(cp_index < method->constants()->length(), "sanity check"); 235 reconstituted_code->byte_at_put(bci + 1, (jbyte) cp_index); 236 break; 237 } 238 239 case Bytecodes::_fast_aldc_w: { 240 int cpc_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1)); 241 int cp_index = method->constants()->object_to_cp_index(cpc_index); 242 assert(cp_index < method->constants()->length(), "sanity check"); 243 Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index); 244 break; 245 } 246 247 default: 248 break; 249 } 250 } 251 } 252 253 return (jbyteArray) JNIHandles::make_local(THREAD, reconstituted_code); 254 C2V_END 255 256 C2V_VMENTRY(jint, getExceptionTableLength, (JNIEnv *, jobject, jobject jvmci_method)) 257 ResourceMark rm; 258 methodHandle method = CompilerToVM::asMethod(jvmci_method); 259 return method->exception_table_length(); 260 C2V_END 261 262 C2V_VMENTRY(jlong, getExceptionTableStart, (JNIEnv *, jobject, jobject jvmci_method)) 263 ResourceMark rm; 264 methodHandle method = CompilerToVM::asMethod(jvmci_method); 265 if (method->exception_table_length() == 0) { 266 return 0L; 267 } 268 return (jlong) (address) method->exception_table_start(); 269 C2V_END 270 271 C2V_VMENTRY(jobject, asResolvedJavaMethod, (JNIEnv *, jobject, jobject executable_handle)) 272 oop executable = JNIHandles::resolve(executable_handle); 273 oop mirror = NULL; 274 int slot = 0; 275 276 if (executable->klass() == SystemDictionary::reflect_Constructor_klass()) { 277 mirror = java_lang_reflect_Constructor::clazz(executable); 278 slot = java_lang_reflect_Constructor::slot(executable); 279 } else { 280 assert(executable->klass() == SystemDictionary::reflect_Method_klass(), "wrong type"); 281 mirror = java_lang_reflect_Method::clazz(executable); 282 slot = java_lang_reflect_Method::slot(executable); 283 } 284 Klass* holder = java_lang_Class::as_Klass(mirror); 285 methodHandle method = InstanceKlass::cast(holder)->method_with_idnum(slot); 286 oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL); 287 return JNIHandles::make_local(THREAD, result); 288 } 289 290 C2V_VMENTRY(jobject, getResolvedJavaMethod, (JNIEnv *, jobject, jobject base, jlong offset)) 291 methodHandle method; 292 oop base_object = JNIHandles::resolve(base); 293 if (base_object == NULL) { 294 method = *((Method**)(offset)); 295 } else if (base_object->is_a(SystemDictionary::ResolvedMethodName_klass())) { 296 method = (Method*) (intptr_t) base_object->long_field(offset); 297 } else if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) { 298 method = *((Method**)(HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object) + offset)); 299 } else { 300 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 301 err_msg("Unexpected type: %s", base_object->klass()->external_name())); 302 } 303 assert (method.is_null() || method->is_method(), "invalid read"); 304 oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL); 305 return JNIHandles::make_local(THREAD, result); 306 } 307 308 C2V_VMENTRY(jobject, getConstantPool, (JNIEnv *, jobject, jobject object_handle)) 309 constantPoolHandle cp; 310 oop object = JNIHandles::resolve(object_handle); 311 if (object == NULL) { 312 THROW_0(vmSymbols::java_lang_NullPointerException()); 313 } 314 if (object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) { 315 cp = CompilerToVM::asMethod(object)->constMethod()->constants(); 316 } else if (object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) { 317 cp = InstanceKlass::cast(CompilerToVM::asKlass(object))->constants(); 318 } else { 319 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 320 err_msg("Unexpected type: %s", object->klass()->external_name())); 321 } 322 assert(!cp.is_null(), "npe"); 323 JavaValue method_result(T_OBJECT); 324 JavaCallArguments args; 325 args.push_long((jlong) (address) cp()); 326 JavaCalls::call_static(&method_result, SystemDictionary::HotSpotConstantPool_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::constantPool_fromMetaspace_signature(), &args, CHECK_NULL); 327 return JNIHandles::make_local(THREAD, (oop)method_result.get_jobject()); 328 } 329 330 C2V_VMENTRY(jobject, getResolvedJavaType, (JNIEnv *, jobject, jobject base, jlong offset, jboolean compressed)) 331 JVMCIKlassHandle klass(THREAD); 332 oop base_object = JNIHandles::resolve(base); 333 jlong base_address = 0; 334 if (base_object != NULL && offset == oopDesc::klass_offset_in_bytes()) { 335 klass = base_object->klass(); 336 } else if (!compressed) { 337 if (base_object != NULL) { 338 if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) { 339 base_address = HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object); 340 } else if (base_object->is_a(SystemDictionary::HotSpotConstantPool_klass())) { 341 base_address = HotSpotConstantPool::metaspaceConstantPool(base_object); 342 } else if (base_object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) { 343 base_address = (jlong) CompilerToVM::asKlass(base_object); 344 } else if (base_object->is_a(SystemDictionary::Class_klass())) { 345 base_address = (jlong) (address) base_object; 346 } else { 347 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 348 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false")); 349 } 350 } 351 klass = *((Klass**) (intptr_t) (base_address + offset)); 352 } else { 353 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 354 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", 355 base_object != NULL ? base_object->klass()->external_name() : "null", 356 offset, compressed ? "true" : "false")); 357 } 358 assert (klass == NULL || klass->is_klass(), "invalid read"); 359 oop result = CompilerToVM::get_jvmci_type(klass, CHECK_NULL); 360 return JNIHandles::make_local(THREAD, result); 361 } 362 363 C2V_VMENTRY(jobject, findUniqueConcreteMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method)) 364 ResourceMark rm; 365 methodHandle method = CompilerToVM::asMethod(jvmci_method); 366 Klass* holder = CompilerToVM::asKlass(jvmci_type); 367 if (holder->is_interface()) { 368 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", holder->external_name())); 369 } 370 371 methodHandle ucm; 372 { 373 MutexLocker locker(Compile_lock); 374 ucm = Dependencies::find_unique_concrete_method(holder, method()); 375 } 376 oop result = CompilerToVM::get_jvmci_method(ucm, CHECK_NULL); 377 return JNIHandles::make_local(THREAD, result); 378 C2V_END 379 380 C2V_VMENTRY(jobject, getImplementor, (JNIEnv *, jobject, jobject jvmci_type)) 381 Klass* klass = CompilerToVM::asKlass(jvmci_type); 382 if (!klass->is_interface()) { 383 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 384 err_msg("Expected interface type, got %s", klass->external_name())); 385 } 386 InstanceKlass* iklass = InstanceKlass::cast(klass); 387 JVMCIKlassHandle handle(THREAD); 388 { 389 // Need Compile_lock around implementor() 390 MutexLocker locker(Compile_lock); 391 handle = iklass->implementor(); 392 } 393 oop implementor = CompilerToVM::get_jvmci_type(handle, CHECK_NULL); 394 return JNIHandles::make_local(THREAD, implementor); 395 C2V_END 396 397 C2V_VMENTRY(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv *, jobject, jobject jvmci_method)) 398 methodHandle method = CompilerToVM::asMethod(jvmci_method); 399 return method->is_ignored_by_security_stack_walk(); 400 C2V_END 401 402 C2V_VMENTRY(jboolean, isCompilable,(JNIEnv *, jobject, jobject jvmci_method)) 403 methodHandle method = CompilerToVM::asMethod(jvmci_method); 404 constantPoolHandle cp = method->constMethod()->constants(); 405 assert(!cp.is_null(), "npe"); 406 // don't inline method when constant pool contains a CONSTANT_Dynamic 407 return !method->is_not_compilable(CompLevel_full_optimization) && !cp->has_dynamic_constant(); 408 C2V_END 409 410 C2V_VMENTRY(jboolean, hasNeverInlineDirective,(JNIEnv *, jobject, jobject jvmci_method)) 411 methodHandle method = CompilerToVM::asMethod(jvmci_method); 412 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline(); 413 C2V_END 414 415 C2V_VMENTRY(jboolean, shouldInlineMethod,(JNIEnv *, jobject, jobject jvmci_method)) 416 methodHandle method = CompilerToVM::asMethod(jvmci_method); 417 return CompilerOracle::should_inline(method) || method->force_inline(); 418 C2V_END 419 420 C2V_VMENTRY(jobject, lookupType, (JNIEnv*, jobject, jstring jname, jclass accessing_class, jboolean resolve)) 421 ResourceMark rm; 422 Handle name(THREAD, JNIHandles::resolve(jname)); 423 Symbol* class_name = java_lang_String::as_symbol(name(), CHECK_0); 424 if (java_lang_String::length(name()) <= 1) { 425 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string())); 426 } 427 428 JVMCIKlassHandle resolved_klass(THREAD); 429 if (JNIHandles::resolve(accessing_class) == NULL) { 430 THROW_0(vmSymbols::java_lang_NullPointerException()); 431 } 432 Klass* accessing_klass = java_lang_Class::as_Klass(JNIHandles::resolve(accessing_class)); 433 Handle class_loader(THREAD, accessing_klass->class_loader()); 434 Handle protection_domain(THREAD, accessing_klass->protection_domain()); 435 436 if (resolve) { 437 resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_0); 438 } else { 439 if ((class_name->char_at(0) == 'L' || class_name->char_at(0) == 'Q' ) && 440 class_name->char_at(class_name->utf8_length()-1) == ';') { 441 // This is a name from a signature. Strip off the trimmings. 442 // Call recursive to keep scope of strippedsym. 443 TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1, 444 class_name->utf8_length()-2, 445 CHECK_0); 446 resolved_klass = SystemDictionary::find(strippedsym, class_loader, protection_domain, CHECK_0); 447 } else if (FieldType::is_array(class_name)) { 448 FieldArrayInfo fd; 449 // dimension and object_key in FieldArrayInfo are assigned as a side-effect 450 // of this call 451 BasicType t = FieldType::get_array_info(class_name, fd, CHECK_0); 452 if (t == T_OBJECT) { 453 TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1+fd.dimension(), 454 class_name->utf8_length()-2-fd.dimension(), 455 CHECK_0); 456 // naked oop "k" is OK here -- we assign back into it 457 resolved_klass = SystemDictionary::find(strippedsym, 458 class_loader, 459 protection_domain, 460 CHECK_0); 461 if (!resolved_klass.is_null()) { 462 resolved_klass = resolved_klass->array_klass(fd.dimension(), CHECK_0); 463 } 464 } else { 465 resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(t))->array_klass(fd.dimension(), CHECK_0); 466 } 467 } 468 } 469 oop result = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL); 470 return JNIHandles::make_local(THREAD, result); 471 C2V_END 472 473 C2V_VMENTRY(jobject, resolveConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index)) 474 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 475 oop result = cp->resolve_constant_at(index, CHECK_NULL); 476 return JNIHandles::make_local(THREAD, result); 477 C2V_END 478 479 C2V_VMENTRY(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index)) 480 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 481 oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL); 482 return JNIHandles::make_local(THREAD, result); 483 C2V_END 484 485 C2V_VMENTRY(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index)) 486 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 487 return cp->name_and_type_ref_index_at(index); 488 C2V_END 489 490 C2V_VMENTRY(jobject, lookupNameInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which)) 491 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 492 Handle sym = java_lang_String::create_from_symbol(cp->name_ref_at(which), CHECK_NULL); 493 return JNIHandles::make_local(THREAD, sym()); 494 C2V_END 495 496 C2V_VMENTRY(jobject, lookupSignatureInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which)) 497 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 498 Handle sym = java_lang_String::create_from_symbol(cp->signature_ref_at(which), CHECK_NULL); 499 return JNIHandles::make_local(THREAD, sym()); 500 C2V_END 501 502 C2V_VMENTRY(jint, lookupKlassRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index)) 503 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 504 return cp->klass_ref_index_at(index); 505 C2V_END 506 507 C2V_VMENTRY(jobject, resolveTypeInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index)) 508 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 509 Klass* klass = cp->klass_at(index, CHECK_NULL); 510 JVMCIKlassHandle resolved_klass(THREAD, klass); 511 if (resolved_klass->is_instance_klass()) { 512 InstanceKlass::cast(resolved_klass())->link_class_or_fail(THREAD); 513 } 514 oop jvmci_type = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL); 515 return JNIHandles::make_local(THREAD, jvmci_type); 516 C2V_END 517 518 C2V_VMENTRY(jobject, lookupKlassInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode)) 519 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 520 Klass* loading_klass = cp->pool_holder(); 521 bool is_accessible = false; 522 JVMCIKlassHandle klass(THREAD, JVMCIEnv::get_klass_by_index(cp, index, is_accessible, loading_klass)); 523 Symbol* symbol = NULL; 524 if (klass == NULL) { 525 symbol = cp->klass_name_at(index); 526 } 527 oop result_oop; 528 if (!klass.is_null()) { 529 result_oop = CompilerToVM::get_jvmci_type(klass, CHECK_NULL); 530 } else { 531 Handle result = java_lang_String::create_from_symbol(symbol, CHECK_NULL); 532 result_oop = result(); 533 } 534 return JNIHandles::make_local(THREAD, result_oop); 535 C2V_END 536 537 C2V_VMENTRY(jobject, lookupAppendixInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index)) 538 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 539 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index); 540 return JNIHandles::make_local(THREAD, appendix_oop); 541 C2V_END 542 543 C2V_VMENTRY(jobject, lookupMethodInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode)) 544 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 545 InstanceKlass* pool_holder = cp->pool_holder(); 546 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF); 547 methodHandle method = JVMCIEnv::get_method_by_index(cp, index, bc, pool_holder); 548 oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL); 549 return JNIHandles::make_local(THREAD, result); 550 C2V_END 551 552 C2V_VMENTRY(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index)) 553 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 554 return cp->remap_instruction_operand_from_cache(index); 555 C2V_END 556 557 C2V_VMENTRY(jobject, resolveFieldInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle)) 558 ResourceMark rm; 559 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 560 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF); 561 fieldDescriptor fd; 562 LinkInfo link_info(cp, index, (jvmci_method != NULL) ? CompilerToVM::asMethod(jvmci_method) : NULL, CHECK_0); 563 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0); 564 typeArrayOop info = (typeArrayOop) JNIHandles::resolve(info_handle); 565 if (info == NULL || info->length() != 3) { 566 JVMCI_ERROR_NULL("info must not be null and have a length of 3"); 567 } 568 info->int_at_put(0, fd.access_flags().as_int()); 569 info->int_at_put(1, fd.offset()); 570 info->int_at_put(2, fd.index()); 571 JVMCIKlassHandle handle(THREAD, fd.field_holder()); 572 oop field_holder = CompilerToVM::get_jvmci_type(handle, CHECK_NULL); 573 return JNIHandles::make_local(THREAD, field_holder); 574 C2V_END 575 576 C2V_VMENTRY(jint, getVtableIndexForInterfaceMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method)) 577 ResourceMark rm; 578 Klass* klass = CompilerToVM::asKlass(jvmci_type); 579 Method* method = CompilerToVM::asMethod(jvmci_method); 580 if (klass->is_interface()) { 581 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", klass->external_name())); 582 } 583 if (!method->method_holder()->is_interface()) { 584 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Method %s is not held by an interface, this case should be handled in Java code", method->name_and_sig_as_C_string())); 585 } 586 if (!InstanceKlass::cast(klass)->is_linked()) { 587 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Class %s must be linked", klass->external_name())); 588 } 589 return LinkResolver::vtable_index_of_interface_method(klass, method); 590 C2V_END 591 592 C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type)) 593 Klass* recv_klass = CompilerToVM::asKlass(receiver_jvmci_type); 594 Klass* caller_klass = CompilerToVM::asKlass(caller_jvmci_type); 595 methodHandle method = CompilerToVM::asMethod(jvmci_method); 596 597 Klass* resolved = method->method_holder(); 598 Symbol* h_name = method->name(); 599 Symbol* h_signature = method->signature(); 600 601 if (MethodHandles::is_signature_polymorphic_method(method())) { 602 // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case. 603 return NULL; 604 } 605 606 if (method->name() == vmSymbols::clone_name() && 607 resolved == SystemDictionary::Object_klass() && 608 recv_klass->is_array_klass()) { 609 // Resolution of the clone method on arrays always returns Object.clone even though that method 610 // has protected access. There's some trickery in the access checking to make this all work out 611 // so it's necessary to pass in the array class as the resolved class to properly trigger this. 612 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See 613 // LinkResolver::check_method_accessability for the matching logic. 614 resolved = recv_klass; 615 } 616 617 LinkInfo link_info(resolved, h_name, h_signature, caller_klass); 618 methodHandle m; 619 // Only do exact lookup if receiver klass has been linked. Otherwise, 620 // the vtable has not been setup, and the LinkResolver will fail. 621 if (recv_klass->is_array_klass() || 622 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) { 623 if (resolved->is_interface()) { 624 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info); 625 } else { 626 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info); 627 } 628 } 629 630 if (m.is_null()) { 631 // Return NULL if there was a problem with lookup (uninitialized class, etc.) 632 return NULL; 633 } 634 635 oop result = CompilerToVM::get_jvmci_method(m, CHECK_NULL); 636 return JNIHandles::make_local(THREAD, result); 637 C2V_END 638 639 C2V_VMENTRY(jboolean, hasFinalizableSubclass,(JNIEnv *, jobject, jobject jvmci_type)) 640 Klass* klass = CompilerToVM::asKlass(jvmci_type); 641 assert(klass != NULL, "method must not be called for primitive types"); 642 return Dependencies::find_finalizable_subclass(klass) != NULL; 643 C2V_END 644 645 C2V_VMENTRY(jobject, getClassInitializer, (JNIEnv *, jobject, jobject jvmci_type)) 646 Klass* klass = CompilerToVM::asKlass(jvmci_type); 647 if (!klass->is_instance_klass()) { 648 return NULL; 649 } 650 InstanceKlass* iklass = InstanceKlass::cast(klass); 651 oop result = CompilerToVM::get_jvmci_method(iklass->class_initializer(), CHECK_NULL); 652 return JNIHandles::make_local(THREAD, result); 653 C2V_END 654 655 C2V_VMENTRY(jlong, getMaxCallTargetOffset, (JNIEnv*, jobject, jlong addr)) 656 address target_addr = (address) addr; 657 if (target_addr != 0x0) { 658 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int)); 659 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int)); 660 return MAX2(ABS(off_low), ABS(off_high)); 661 } 662 return -1; 663 C2V_END 664 665 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv *, jobject, jobject jvmci_method)) 666 methodHandle method = CompilerToVM::asMethod(jvmci_method); 667 method->set_not_c1_compilable(); 668 method->set_not_c2_compilable(); 669 method->set_dont_inline(true); 670 C2V_END 671 672 C2V_VMENTRY(jint, installCode, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject installed_code, jobject speculation_log)) 673 ResourceMark rm; 674 HandleMark hm; 675 JNIHandleMark jni_hm; 676 677 Handle target_handle(THREAD, JNIHandles::resolve(target)); 678 Handle compiled_code_handle(THREAD, JNIHandles::resolve(compiled_code)); 679 CodeBlob* cb = NULL; 680 Handle installed_code_handle(THREAD, JNIHandles::resolve(installed_code)); 681 Handle speculation_log_handle(THREAD, JNIHandles::resolve(speculation_log)); 682 683 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR); 684 685 TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer()); 686 bool is_immutable_PIC = HotSpotCompiledCode::isImmutablePIC(compiled_code_handle) > 0; 687 CodeInstaller installer(is_immutable_PIC); 688 JVMCIEnv::CodeInstallResult result = installer.install(compiler, target_handle, compiled_code_handle, cb, installed_code_handle, speculation_log_handle, CHECK_0); 689 690 if (PrintCodeCacheOnCompilation) { 691 stringStream s; 692 // Dump code cache into a buffer before locking the tty, 693 { 694 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 695 CodeCache::print_summary(&s, false); 696 } 697 ttyLocker ttyl; 698 tty->print_raw_cr(s.as_string()); 699 } 700 701 if (result != JVMCIEnv::ok) { 702 assert(cb == NULL, "should be"); 703 } else { 704 if (installed_code_handle.not_null()) { 705 assert(installed_code_handle->is_a(InstalledCode::klass()), "wrong type"); 706 nmethod::invalidate_installed_code(installed_code_handle, CHECK_0); 707 { 708 // Ensure that all updates to the InstalledCode fields are consistent. 709 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); 710 InstalledCode::set_address(installed_code_handle, (jlong) cb); 711 InstalledCode::set_version(installed_code_handle, InstalledCode::version(installed_code_handle) + 1); 712 if (cb->is_nmethod()) { 713 InstalledCode::set_entryPoint(installed_code_handle, (jlong) cb->as_nmethod_or_null()->verified_entry_point()); 714 } else { 715 InstalledCode::set_entryPoint(installed_code_handle, (jlong) cb->code_begin()); 716 } 717 if (installed_code_handle->is_a(HotSpotInstalledCode::klass())) { 718 HotSpotInstalledCode::set_size(installed_code_handle, cb->size()); 719 HotSpotInstalledCode::set_codeStart(installed_code_handle, (jlong) cb->code_begin()); 720 HotSpotInstalledCode::set_codeSize(installed_code_handle, cb->code_size()); 721 } 722 } 723 } 724 } 725 return result; 726 C2V_END 727 728 C2V_VMENTRY(jint, getMetadata, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject metadata)) 729 #if INCLUDE_AOT 730 ResourceMark rm; 731 HandleMark hm; 732 733 Handle target_handle(THREAD, JNIHandles::resolve(target)); 734 Handle compiled_code_handle(THREAD, JNIHandles::resolve(compiled_code)); 735 Handle metadata_handle(THREAD, JNIHandles::resolve(metadata)); 736 737 CodeMetadata code_metadata; 738 CodeBlob *cb = NULL; 739 CodeInstaller installer(true /* immutable PIC compilation */); 740 741 JVMCIEnv::CodeInstallResult result = installer.gather_metadata(target_handle, compiled_code_handle, code_metadata, CHECK_0); 742 if (result != JVMCIEnv::ok) { 743 return result; 744 } 745 746 if (code_metadata.get_nr_pc_desc() > 0) { 747 typeArrayHandle pcArrayOop = oopFactory::new_byteArray_handle(sizeof(PcDesc) * code_metadata.get_nr_pc_desc(), CHECK_(JVMCIEnv::cache_full)); 748 memcpy(pcArrayOop->byte_at_addr(0), code_metadata.get_pc_desc(), sizeof(PcDesc) * code_metadata.get_nr_pc_desc()); 749 HotSpotMetaData::set_pcDescBytes(metadata_handle, pcArrayOop()); 750 } 751 752 if (code_metadata.get_scopes_size() > 0) { 753 typeArrayHandle scopesArrayOop = oopFactory::new_byteArray_handle(code_metadata.get_scopes_size(), CHECK_(JVMCIEnv::cache_full)); 754 memcpy(scopesArrayOop->byte_at_addr(0), code_metadata.get_scopes_desc(), code_metadata.get_scopes_size()); 755 HotSpotMetaData::set_scopesDescBytes(metadata_handle, scopesArrayOop()); 756 } 757 758 RelocBuffer* reloc_buffer = code_metadata.get_reloc_buffer(); 759 typeArrayHandle relocArrayOop = oopFactory::new_byteArray_handle((int) reloc_buffer->size(), CHECK_(JVMCIEnv::cache_full)); 760 if (reloc_buffer->size() > 0) { 761 memcpy(relocArrayOop->byte_at_addr(0), reloc_buffer->begin(), reloc_buffer->size()); 762 } 763 HotSpotMetaData::set_relocBytes(metadata_handle, relocArrayOop()); 764 765 const OopMapSet* oopMapSet = installer.oopMapSet(); 766 { 767 ResourceMark mark; 768 ImmutableOopMapBuilder builder(oopMapSet); 769 int oopmap_size = builder.heap_size(); 770 typeArrayHandle oopMapArrayHandle = oopFactory::new_byteArray_handle(oopmap_size, CHECK_(JVMCIEnv::cache_full)); 771 builder.generate_into((address) oopMapArrayHandle->byte_at_addr(0)); 772 HotSpotMetaData::set_oopMaps(metadata_handle, oopMapArrayHandle()); 773 } 774 775 AOTOopRecorder* recorder = code_metadata.get_oop_recorder(); 776 777 int nr_meta_refs = recorder->nr_meta_refs(); 778 objArrayOop metadataArray = oopFactory::new_objectArray(nr_meta_refs, CHECK_(JVMCIEnv::cache_full)); 779 objArrayHandle metadataArrayHandle(THREAD, metadataArray); 780 for (int i = 0; i < nr_meta_refs; ++i) { 781 jobject element = recorder->meta_element(i); 782 if (element == NULL) { 783 return JVMCIEnv::cache_full; 784 } 785 metadataArrayHandle->obj_at_put(i, JNIHandles::resolve(element)); 786 } 787 HotSpotMetaData::set_metadata(metadata_handle, metadataArrayHandle()); 788 789 ExceptionHandlerTable* handler = code_metadata.get_exception_table(); 790 int table_size = handler->size_in_bytes(); 791 typeArrayHandle exceptionArrayOop = oopFactory::new_byteArray_handle(table_size, CHECK_(JVMCIEnv::cache_full)); 792 793 if (table_size > 0) { 794 handler->copy_bytes_to((address) exceptionArrayOop->byte_at_addr(0)); 795 } 796 HotSpotMetaData::set_exceptionBytes(metadata_handle, exceptionArrayOop()); 797 798 return result; 799 #else 800 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "unimplemented"); 801 #endif 802 C2V_END 803 804 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv *jniEnv, jobject)) 805 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK); 806 CompilerStatistics* stats = compiler->stats(); 807 stats->_standard.reset(); 808 stats->_osr.reset(); 809 C2V_END 810 811 C2V_VMENTRY(jobject, disassembleCodeBlob, (JNIEnv *jniEnv, jobject, jobject installedCode)) 812 ResourceMark rm; 813 HandleMark hm; 814 815 if (installedCode == NULL) { 816 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), "installedCode is null"); 817 } 818 819 jlong codeBlob = InstalledCode::address(installedCode); 820 if (codeBlob == 0L) { 821 return NULL; 822 } 823 824 CodeBlob* cb = (CodeBlob*) (address) codeBlob; 825 if (cb == NULL) { 826 return NULL; 827 } 828 829 // We don't want the stringStream buffer to resize during disassembly as it 830 // uses scoped resource memory. If a nested function called during disassembly uses 831 // a ResourceMark and the buffer expands within the scope of the mark, 832 // the buffer becomes garbage when that scope is exited. Experience shows that 833 // the disassembled code is typically about 10x the code size so a fixed buffer 834 // sized to 20x code size plus a fixed amount for header info should be sufficient. 835 int bufferSize = cb->code_size() * 20 + 1024; 836 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize); 837 stringStream st(buffer, bufferSize); 838 if (cb->is_nmethod()) { 839 nmethod* nm = (nmethod*) cb; 840 if (!nm->is_alive()) { 841 return NULL; 842 } 843 } 844 Disassembler::decode(cb, &st); 845 if (st.size() <= 0) { 846 return NULL; 847 } 848 849 Handle result = java_lang_String::create_from_platform_dependent_str(st.as_string(), CHECK_NULL); 850 return JNIHandles::make_local(THREAD, result()); 851 C2V_END 852 853 C2V_VMENTRY(jobject, getStackTraceElement, (JNIEnv*, jobject, jobject jvmci_method, int bci)) 854 ResourceMark rm; 855 HandleMark hm; 856 857 methodHandle method = CompilerToVM::asMethod(jvmci_method); 858 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_NULL); 859 return JNIHandles::make_local(THREAD, element); 860 C2V_END 861 862 C2V_VMENTRY(jobject, executeInstalledCode, (JNIEnv*, jobject, jobject args, jobject hotspotInstalledCode)) 863 ResourceMark rm; 864 HandleMark hm; 865 866 jlong nmethodValue = InstalledCode::address(hotspotInstalledCode); 867 if (nmethodValue == 0L) { 868 THROW_NULL(vmSymbols::jdk_vm_ci_code_InvalidInstalledCodeException()); 869 } 870 nmethod* nm = (nmethod*) (address) nmethodValue; 871 methodHandle mh = nm->method(); 872 Symbol* signature = mh->signature(); 873 JavaCallArguments jca(mh->size_of_parameters()); 874 875 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static()); 876 JavaValue result(jap.get_ret_type()); 877 jca.set_alternative_target(nm); 878 JavaCalls::call(&result, mh, &jca, CHECK_NULL); 879 880 if (jap.get_ret_type() == T_VOID) { 881 return NULL; 882 } else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY 883 || jap.get_ret_type() == T_VALUETYPE) { 884 return JNIHandles::make_local(THREAD, (oop) result.get_jobject()); 885 } else { 886 jvalue *value = (jvalue *) result.get_value_addr(); 887 // Narrow the value down if required (Important on big endian machines) 888 switch (jap.get_ret_type()) { 889 case T_BOOLEAN: 890 value->z = (jboolean) value->i; 891 break; 892 case T_BYTE: 893 value->b = (jbyte) value->i; 894 break; 895 case T_CHAR: 896 value->c = (jchar) value->i; 897 break; 898 case T_SHORT: 899 value->s = (jshort) value->i; 900 break; 901 default: 902 break; 903 } 904 oop o = java_lang_boxing_object::create(jap.get_ret_type(), value, CHECK_NULL); 905 return JNIHandles::make_local(THREAD, o); 906 } 907 C2V_END 908 909 C2V_VMENTRY(jlongArray, getLineNumberTable, (JNIEnv *, jobject, jobject jvmci_method)) 910 Method* method = CompilerToVM::asMethod(jvmci_method); 911 if (!method->has_linenumber_table()) { 912 return NULL; 913 } 914 u2 num_entries = 0; 915 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table()); 916 while (streamForSize.read_pair()) { 917 num_entries++; 918 } 919 920 CompressedLineNumberReadStream stream(method->compressed_linenumber_table()); 921 typeArrayOop result = oopFactory::new_longArray(2 * num_entries, CHECK_NULL); 922 923 int i = 0; 924 jlong value; 925 while (stream.read_pair()) { 926 value = ((long) stream.bci()); 927 result->long_at_put(i, value); 928 value = ((long) stream.line()); 929 result->long_at_put(i + 1, value); 930 i += 2; 931 } 932 933 return (jlongArray) JNIHandles::make_local(THREAD, result); 934 C2V_END 935 936 C2V_VMENTRY(jlong, getLocalVariableTableStart, (JNIEnv *, jobject, jobject jvmci_method)) 937 ResourceMark rm; 938 Method* method = CompilerToVM::asMethod(jvmci_method); 939 if (!method->has_localvariable_table()) { 940 return 0; 941 } 942 return (jlong) (address) method->localvariable_table_start(); 943 C2V_END 944 945 C2V_VMENTRY(jint, getLocalVariableTableLength, (JNIEnv *, jobject, jobject jvmci_method)) 946 ResourceMark rm; 947 Method* method = CompilerToVM::asMethod(jvmci_method); 948 return method->localvariable_table_length(); 949 C2V_END 950 951 C2V_VMENTRY(void, reprofile, (JNIEnv*, jobject, jobject jvmci_method)) 952 Method* method = CompilerToVM::asMethod(jvmci_method); 953 MethodCounters* mcs = method->method_counters(); 954 if (mcs != NULL) { 955 mcs->clear_counters(); 956 } 957 NOT_PRODUCT(method->set_compiled_invocation_count(0)); 958 959 CompiledMethod* code = method->code(); 960 if (code != NULL) { 961 code->make_not_entrant(); 962 } 963 964 MethodData* method_data = method->method_data(); 965 if (method_data == NULL) { 966 ClassLoaderData* loader_data = method->method_holder()->class_loader_data(); 967 method_data = MethodData::allocate(loader_data, method, CHECK); 968 method->set_method_data(method_data); 969 } else { 970 method_data->initialize(); 971 } 972 C2V_END 973 974 975 C2V_VMENTRY(void, invalidateInstalledCode, (JNIEnv*, jobject, jobject installed_code)) 976 Handle installed_code_handle(THREAD, JNIHandles::resolve(installed_code)); 977 nmethod::invalidate_installed_code(installed_code_handle, CHECK); 978 C2V_END 979 980 C2V_VMENTRY(jlongArray, collectCounters, (JNIEnv*, jobject)) 981 typeArrayOop arrayOop = oopFactory::new_longArray(JVMCICounterSize, CHECK_NULL); 982 JavaThread::collect_counters(arrayOop); 983 return (jlongArray) JNIHandles::make_local(THREAD, arrayOop); 984 C2V_END 985 986 C2V_VMENTRY(int, allocateCompileId, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci)) 987 HandleMark hm; 988 ResourceMark rm; 989 if (JNIHandles::resolve(jvmci_method) == NULL) { 990 THROW_0(vmSymbols::java_lang_NullPointerException()); 991 } 992 Method* method = CompilerToVM::asMethod(jvmci_method); 993 if (entry_bci >= method->code_size() || entry_bci < -1) { 994 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Unexpected bci %d", entry_bci)); 995 } 996 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci); 997 C2V_END 998 999 1000 C2V_VMENTRY(jboolean, isMature, (JNIEnv*, jobject, jlong metaspace_method_data)) 1001 MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data); 1002 return mdo != NULL && mdo->is_mature(); 1003 C2V_END 1004 1005 C2V_VMENTRY(jboolean, hasCompiledCodeForOSR, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci, int comp_level)) 1006 Method* method = CompilerToVM::asMethod(jvmci_method); 1007 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL; 1008 C2V_END 1009 1010 C2V_VMENTRY(jobject, getSymbol, (JNIEnv*, jobject, jlong symbol)) 1011 Handle sym = java_lang_String::create_from_symbol((Symbol*)(address)symbol, CHECK_NULL); 1012 return JNIHandles::make_local(THREAD, sym()); 1013 C2V_END 1014 1015 bool matches(jobjectArray methods, Method* method) { 1016 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods); 1017 1018 for (int i = 0; i < methods_oop->length(); i++) { 1019 oop resolved = methods_oop->obj_at(i); 1020 if (resolved->is_a(HotSpotResolvedJavaMethodImpl::klass()) && CompilerToVM::asMethod(resolved) == method) { 1021 return true; 1022 } 1023 } 1024 return false; 1025 } 1026 1027 void call_interface(JavaValue* result, Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { 1028 CallInfo callinfo; 1029 Handle receiver = args->receiver(); 1030 Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass(); 1031 LinkInfo link_info(spec_klass, name, signature); 1032 LinkResolver::resolve_interface_call( 1033 callinfo, receiver, recvrKlass, link_info, true, CHECK); 1034 methodHandle method = callinfo.selected_method(); 1035 assert(method.not_null(), "should have thrown exception"); 1036 1037 // Invoke the method 1038 JavaCalls::call(result, method, args, CHECK); 1039 } 1040 1041 C2V_VMENTRY(jobject, iterateFrames, (JNIEnv*, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle)) 1042 ResourceMark rm; 1043 1044 if (!thread->has_last_Java_frame()) { 1045 return NULL; 1046 } 1047 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle)); 1048 Handle frame_reference = HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL); 1049 HotSpotStackFrameReference::klass()->initialize(CHECK_NULL); 1050 1051 StackFrameStream fst(thread); 1052 1053 jobjectArray methods = initial_methods; 1054 1055 int frame_number = 0; 1056 vframe* vf = vframe::new_vframe(fst.current(), fst.register_map(), thread); 1057 1058 while (true) { 1059 // look for the given method 1060 bool realloc_called = false; 1061 while (true) { 1062 StackValueCollection* locals = NULL; 1063 if (vf->is_compiled_frame()) { 1064 // compiled method frame 1065 compiledVFrame* cvf = compiledVFrame::cast(vf); 1066 if (methods == NULL || matches(methods, cvf->method())) { 1067 if (initialSkip > 0) { 1068 initialSkip--; 1069 } else { 1070 ScopeDesc* scope = cvf->scope(); 1071 // native wrappers do not have a scope 1072 if (scope != NULL && scope->objects() != NULL) { 1073 GrowableArray<ScopeValue*>* objects; 1074 if (!realloc_called) { 1075 objects = scope->objects(); 1076 } else { 1077 // some object might already have been re-allocated, only reallocate the non-allocated ones 1078 objects = new GrowableArray<ScopeValue*>(scope->objects()->length()); 1079 for (int i = 0; i < scope->objects()->length(); i++) { 1080 ObjectValue* sv = (ObjectValue*) scope->objects()->at(i); 1081 if (sv->value().is_null()) { 1082 objects->append(sv); 1083 } 1084 } 1085 } 1086 bool realloc_failures = Deoptimization::realloc_objects(thread, fst.current(), objects, CHECK_NULL); 1087 Deoptimization::reassign_fields(fst.current(), fst.register_map(), objects, realloc_failures, false, CHECK_NULL); 1088 realloc_called = true; 1089 1090 GrowableArray<ScopeValue*>* local_values = scope->locals(); 1091 assert(local_values != NULL, "NULL locals"); 1092 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL); 1093 typeArrayHandle array(THREAD, array_oop); 1094 for (int i = 0; i < local_values->length(); i++) { 1095 ScopeValue* value = local_values->at(i); 1096 if (value->is_object()) { 1097 array->bool_at_put(i, true); 1098 } 1099 } 1100 HotSpotStackFrameReference::set_localIsVirtual(frame_reference, array()); 1101 } else { 1102 HotSpotStackFrameReference::set_localIsVirtual(frame_reference, NULL); 1103 } 1104 1105 locals = cvf->locals(); 1106 HotSpotStackFrameReference::set_bci(frame_reference, cvf->bci()); 1107 oop method = CompilerToVM::get_jvmci_method(cvf->method(), CHECK_NULL); 1108 HotSpotStackFrameReference::set_method(frame_reference, method); 1109 } 1110 } 1111 } else if (vf->is_interpreted_frame()) { 1112 // interpreted method frame 1113 interpretedVFrame* ivf = interpretedVFrame::cast(vf); 1114 if (methods == NULL || matches(methods, ivf->method())) { 1115 if (initialSkip > 0) { 1116 initialSkip--; 1117 } else { 1118 locals = ivf->locals(); 1119 HotSpotStackFrameReference::set_bci(frame_reference, ivf->bci()); 1120 oop method = CompilerToVM::get_jvmci_method(ivf->method(), CHECK_NULL); 1121 HotSpotStackFrameReference::set_method(frame_reference, method); 1122 HotSpotStackFrameReference::set_localIsVirtual(frame_reference, NULL); 1123 } 1124 } 1125 } 1126 1127 // locals != NULL means that we found a matching frame and result is already partially initialized 1128 if (locals != NULL) { 1129 methods = match_methods; 1130 HotSpotStackFrameReference::set_compilerToVM(frame_reference, JNIHandles::resolve(compilerToVM)); 1131 HotSpotStackFrameReference::set_stackPointer(frame_reference, (jlong) fst.current()->sp()); 1132 HotSpotStackFrameReference::set_frameNumber(frame_reference, frame_number); 1133 1134 // initialize the locals array 1135 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL); 1136 objArrayHandle array(THREAD, array_oop); 1137 for (int i = 0; i < locals->size(); i++) { 1138 StackValue* var = locals->at(i); 1139 if (var->type() == T_OBJECT) { 1140 array->obj_at_put(i, locals->at(i)->get_obj()()); 1141 } 1142 } 1143 HotSpotStackFrameReference::set_locals(frame_reference, array()); 1144 HotSpotStackFrameReference::set_objectsMaterialized(frame_reference, JNI_FALSE); 1145 1146 JavaValue result(T_OBJECT); 1147 JavaCallArguments args(visitor); 1148 args.push_oop(frame_reference); 1149 call_interface(&result, SystemDictionary::InspectedFrameVisitor_klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL); 1150 if (result.get_jobject() != NULL) { 1151 return JNIHandles::make_local(thread, (oop) result.get_jobject()); 1152 } 1153 assert(initialSkip == 0, "There should be no match before initialSkip == 0"); 1154 if (HotSpotStackFrameReference::objectsMaterialized(frame_reference) == JNI_TRUE) { 1155 // the frame has been deoptimized, we need to re-synchronize the frame and vframe 1156 intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(frame_reference); 1157 fst = StackFrameStream(thread); 1158 while (fst.current()->sp() != stack_pointer && !fst.is_done()) { 1159 fst.next(); 1160 } 1161 if (fst.current()->sp() != stack_pointer) { 1162 THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt") 1163 } 1164 vf = vframe::new_vframe(fst.current(), fst.register_map(), thread); 1165 if (!vf->is_compiled_frame()) { 1166 THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected") 1167 } 1168 for (int i = 0; i < frame_number; i++) { 1169 if (vf->is_top()) { 1170 THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt") 1171 } 1172 vf = vf->sender(); 1173 assert(vf->is_compiled_frame(), "Wrong frame type"); 1174 } 1175 } 1176 frame_reference = HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL); 1177 HotSpotStackFrameReference::klass()->initialize(CHECK_NULL); 1178 } 1179 1180 if (vf->is_top()) { 1181 break; 1182 } 1183 frame_number++; 1184 vf = vf->sender(); 1185 } // end of vframe loop 1186 1187 if (fst.is_done()) { 1188 break; 1189 } 1190 fst.next(); 1191 vf = vframe::new_vframe(fst.current(), fst.register_map(), thread); 1192 frame_number = 0; 1193 } // end of frame loop 1194 1195 // the end was reached without finding a matching method 1196 return NULL; 1197 C2V_END 1198 1199 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index)) 1200 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 1201 CallInfo callInfo; 1202 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK); 1203 ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index); 1204 cp_cache_entry->set_dynamic_call(cp, callInfo); 1205 C2V_END 1206 1207 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index)) 1208 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 1209 Klass* holder = cp->klass_ref_at(index, CHECK); 1210 Symbol* name = cp->name_ref_at(index); 1211 if (MethodHandles::is_signature_polymorphic_name(holder, name)) { 1212 CallInfo callInfo; 1213 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK); 1214 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index)); 1215 cp_cache_entry->set_method_handle(cp, callInfo); 1216 } 1217 C2V_END 1218 1219 C2V_VMENTRY(jint, isResolvedInvokeHandleInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index)) 1220 constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool); 1221 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index)); 1222 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) { 1223 // MethodHandle.invoke* --> LambdaForm? 1224 ResourceMark rm; 1225 1226 LinkInfo link_info(cp, index, CATCH); 1227 1228 Klass* resolved_klass = link_info.resolved_klass(); 1229 1230 Symbol* name_sym = cp->name_ref_at(index); 1231 1232 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!"); 1233 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!"); 1234 1235 methodHandle adapter_method(cp_cache_entry->f1_as_method()); 1236 1237 methodHandle resolved_method(adapter_method); 1238 1239 // Can we treat it as a regular invokevirtual? 1240 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) { 1241 vmassert(!resolved_method->is_static(),"!"); 1242 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!"); 1243 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!"); 1244 vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!"); 1245 1246 methodHandle m(LinkResolver::linktime_resolve_virtual_method_or_null(link_info)); 1247 vmassert(m == resolved_method, "!!"); 1248 return -1; 1249 } 1250 1251 return Bytecodes::_invokevirtual; 1252 } 1253 if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) { 1254 return Bytecodes::_invokedynamic; 1255 } 1256 return -1; 1257 C2V_END 1258 1259 1260 C2V_VMENTRY(jobject, getSignaturePolymorphicHolders, (JNIEnv*, jobject)) 1261 objArrayHandle holders = oopFactory::new_objArray_handle(SystemDictionary::String_klass(), 2, CHECK_NULL); 1262 Handle mh = java_lang_String::create_from_str("Ljava/lang/invoke/MethodHandle;", CHECK_NULL); 1263 Handle vh = java_lang_String::create_from_str("Ljava/lang/invoke/VarHandle;", CHECK_NULL); 1264 holders->obj_at_put(0, mh()); 1265 holders->obj_at_put(1, vh()); 1266 return JNIHandles::make_local(THREAD, holders()); 1267 C2V_END 1268 1269 C2V_VMENTRY(jboolean, shouldDebugNonSafepoints, (JNIEnv*, jobject)) 1270 //see compute_recording_non_safepoints in debugInfroRec.cpp 1271 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) { 1272 return true; 1273 } 1274 return DebugNonSafepoints; 1275 C2V_END 1276 1277 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate); 1278 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv*, jobject, jobject hs_frame, bool invalidate)) 1279 ResourceMark rm; 1280 1281 if (hs_frame == NULL) { 1282 THROW_MSG(vmSymbols::java_lang_NullPointerException(), "stack frame is null") 1283 } 1284 1285 HotSpotStackFrameReference::klass()->initialize(CHECK); 1286 1287 // look for the given stack frame 1288 StackFrameStream fst(thread); 1289 intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(hs_frame); 1290 while (fst.current()->sp() != stack_pointer && !fst.is_done()) { 1291 fst.next(); 1292 } 1293 if (fst.current()->sp() != stack_pointer) { 1294 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found") 1295 } 1296 1297 if (invalidate) { 1298 if (!fst.current()->is_compiled_frame()) { 1299 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected") 1300 } 1301 assert(fst.current()->cb()->is_nmethod(), "nmethod expected"); 1302 ((nmethod*) fst.current()->cb())->make_not_entrant(); 1303 } 1304 Deoptimization::deoptimize(thread, *fst.current(), fst.register_map(), Deoptimization::Reason_none); 1305 // look for the frame again as it has been updated by deopt (pc, deopt state...) 1306 StackFrameStream fstAfterDeopt(thread); 1307 while (fstAfterDeopt.current()->sp() != stack_pointer && !fstAfterDeopt.is_done()) { 1308 fstAfterDeopt.next(); 1309 } 1310 if (fstAfterDeopt.current()->sp() != stack_pointer) { 1311 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt") 1312 } 1313 1314 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread); 1315 if (!vf->is_compiled_frame()) { 1316 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected") 1317 } 1318 1319 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10); 1320 while (true) { 1321 assert(vf->is_compiled_frame(), "Wrong frame type"); 1322 virtualFrames->push(compiledVFrame::cast(vf)); 1323 if (vf->is_top()) { 1324 break; 1325 } 1326 vf = vf->sender(); 1327 } 1328 1329 int last_frame_number = HotSpotStackFrameReference::frameNumber(hs_frame); 1330 if (last_frame_number >= virtualFrames->length()) { 1331 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "invalid frame number") 1332 } 1333 1334 // Reallocate the non-escaping objects and restore their fields. 1335 assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope"); 1336 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects(); 1337 1338 if (objects == NULL) { 1339 // no objects to materialize 1340 return; 1341 } 1342 1343 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), objects, CHECK); 1344 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false, THREAD); 1345 1346 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) { 1347 compiledVFrame* cvf = virtualFrames->at(frame_index); 1348 1349 GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals(); 1350 StackValueCollection* locals = cvf->locals(); 1351 if (locals != NULL) { 1352 for (int i2 = 0; i2 < locals->size(); i2++) { 1353 StackValue* var = locals->at(i2); 1354 if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) { 1355 jvalue val; 1356 val.l = (jobject) locals->at(i2)->get_obj()(); 1357 cvf->update_local(T_OBJECT, i2, val); 1358 } 1359 } 1360 } 1361 1362 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions(); 1363 StackValueCollection* expressions = cvf->expressions(); 1364 if (expressions != NULL) { 1365 for (int i2 = 0; i2 < expressions->size(); i2++) { 1366 StackValue* var = expressions->at(i2); 1367 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) { 1368 jvalue val; 1369 val.l = (jobject) expressions->at(i2)->get_obj()(); 1370 cvf->update_stack(T_OBJECT, i2, val); 1371 } 1372 } 1373 } 1374 1375 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors(); 1376 GrowableArray<MonitorInfo*>* monitors = cvf->monitors(); 1377 if (monitors != NULL) { 1378 for (int i2 = 0; i2 < monitors->length(); i2++) { 1379 cvf->update_monitor(i2, monitors->at(i2)); 1380 } 1381 } 1382 } 1383 1384 // all locals are materialized by now 1385 HotSpotStackFrameReference::set_localIsVirtual(hs_frame, NULL); 1386 1387 // update the locals array 1388 objArrayHandle array(THREAD, HotSpotStackFrameReference::locals(hs_frame)); 1389 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals(); 1390 for (int i = 0; i < locals->size(); i++) { 1391 StackValue* var = locals->at(i); 1392 if (var->type() == T_OBJECT) { 1393 array->obj_at_put(i, locals->at(i)->get_obj()()); 1394 } 1395 } 1396 HotSpotStackFrameReference::set_objectsMaterialized(hs_frame, JNI_TRUE); 1397 C2V_END 1398 1399 C2V_VMENTRY(void, writeDebugOutput, (JNIEnv*, jobject, jbyteArray bytes, jint offset, jint length)) 1400 if (bytes == NULL) { 1401 THROW(vmSymbols::java_lang_NullPointerException()); 1402 } 1403 typeArrayOop array = (typeArrayOop) JNIHandles::resolve(bytes); 1404 1405 // Check if offset and length are non negative. 1406 if (offset < 0 || length < 0) { 1407 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); 1408 } 1409 // Check if the range is valid. 1410 if ((((unsigned int) length + (unsigned int) offset) > (unsigned int) array->length())) { 1411 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); 1412 } 1413 while (length > 0) { 1414 jbyte* start = array->byte_at_addr(offset); 1415 tty->write((char*) start, MIN2(length, (jint)O_BUFLEN)); 1416 length -= O_BUFLEN; 1417 offset += O_BUFLEN; 1418 } 1419 C2V_END 1420 1421 C2V_VMENTRY(void, flushDebugOutput, (JNIEnv*, jobject)) 1422 tty->flush(); 1423 C2V_END 1424 1425 C2V_VMENTRY(int, methodDataProfileDataSize, (JNIEnv*, jobject, jlong metaspace_method_data, jint position)) 1426 ResourceMark rm; 1427 MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data); 1428 ProfileData* profile_data = mdo->data_at(position); 1429 if (mdo->is_valid(profile_data)) { 1430 return profile_data->size_in_bytes(); 1431 } 1432 DataLayout* data = mdo->extra_data_base(); 1433 DataLayout* end = mdo->extra_data_limit(); 1434 for (;; data = mdo->next_extra(data)) { 1435 assert(data < end, "moved past end of extra data"); 1436 profile_data = data->data_in(); 1437 if (mdo->dp_to_di(profile_data->dp()) == position) { 1438 return profile_data->size_in_bytes(); 1439 } 1440 } 1441 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Invalid profile data position %d", position)); 1442 C2V_END 1443 1444 C2V_VMENTRY(jlong, getFingerprint, (JNIEnv*, jobject, jlong metaspace_klass)) 1445 #if INCLUDE_AOT 1446 Klass *k = CompilerToVM::asKlass(metaspace_klass); 1447 if (k->is_instance_klass()) { 1448 return InstanceKlass::cast(k)->get_stored_fingerprint(); 1449 } else { 1450 return 0; 1451 } 1452 #else 1453 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "unimplemented"); 1454 #endif 1455 C2V_END 1456 1457 C2V_VMENTRY(jobject, getHostClass, (JNIEnv*, jobject, jobject jvmci_type)) 1458 InstanceKlass* k = InstanceKlass::cast(CompilerToVM::asKlass(jvmci_type)); 1459 InstanceKlass* host = k->unsafe_anonymous_host(); 1460 JVMCIKlassHandle handle(THREAD, host); 1461 oop result = CompilerToVM::get_jvmci_type(handle, CHECK_NULL); 1462 return JNIHandles::make_local(THREAD, result); 1463 C2V_END 1464 1465 C2V_VMENTRY(int, interpreterFrameSize, (JNIEnv*, jobject, jobject bytecode_frame_handle)) 1466 if (bytecode_frame_handle == NULL) { 1467 THROW_0(vmSymbols::java_lang_NullPointerException()); 1468 } 1469 1470 oop top_bytecode_frame = JNIHandles::resolve_non_null(bytecode_frame_handle); 1471 oop bytecode_frame = top_bytecode_frame; 1472 int size = 0; 1473 int callee_parameters = 0; 1474 int callee_locals = 0; 1475 Method* method = getMethodFromHotSpotMethod(BytecodePosition::method(bytecode_frame)); 1476 int extra_args = method->max_stack() - BytecodeFrame::numStack(bytecode_frame); 1477 1478 while (bytecode_frame != NULL) { 1479 int locks = BytecodeFrame::numLocks(bytecode_frame); 1480 int temps = BytecodeFrame::numStack(bytecode_frame); 1481 bool is_top_frame = (bytecode_frame == top_bytecode_frame); 1482 Method* method = getMethodFromHotSpotMethod(BytecodePosition::method(bytecode_frame)); 1483 1484 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(), 1485 temps + callee_parameters, 1486 extra_args, 1487 locks, 1488 callee_parameters, 1489 callee_locals, 1490 is_top_frame); 1491 size += frame_size; 1492 1493 callee_parameters = method->size_of_parameters(); 1494 callee_locals = method->max_locals(); 1495 extra_args = 0; 1496 bytecode_frame = BytecodePosition::caller(bytecode_frame); 1497 } 1498 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord; 1499 C2V_END 1500 1501 C2V_VMENTRY(void, compileToBytecode, (JNIEnv*, jobject, jobject lambda_form_handle)) 1502 Handle lambda_form(THREAD, JNIHandles::resolve_non_null(lambda_form_handle)); 1503 if (lambda_form->is_a(SystemDictionary::LambdaForm_klass())) { 1504 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode", CHECK); 1505 JavaValue result(T_VOID); 1506 JavaCalls::call_special(&result, lambda_form, SystemDictionary::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK); 1507 } else { 1508 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), 1509 err_msg("Unexpected type: %s", lambda_form->klass()->external_name())); 1510 } 1511 C2V_END 1512 1513 C2V_VMENTRY(jobject, asReflectionExecutable, (JNIEnv* env, jobject, jobject jvmci_method)) 1514 methodHandle m = CompilerToVM::asMethod(jvmci_method); 1515 oop executable; 1516 if (m->is_initializer()) { 1517 if (m->is_static_initializer()) { 1518 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 1519 "Cannot create java.lang.reflect.Method for class initializer"); 1520 } 1521 executable = Reflection::new_constructor(m, CHECK_NULL); 1522 } else { 1523 executable = Reflection::new_method(m, false, CHECK_NULL); 1524 } 1525 return JNIHandles::make_local(thread, executable); 1526 } 1527 1528 C2V_VMENTRY(jobject, asReflectionField, (JNIEnv* env, jobject, jobject jvmci_type, jint index)) 1529 Klass* klass = CompilerToVM::asKlass(jvmci_type); 1530 if (!klass->is_instance_klass()) { 1531 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 1532 err_msg("Expected non-primitive type, got %s", klass->external_name())); 1533 } 1534 InstanceKlass* iklass = InstanceKlass::cast(klass); 1535 Array<u2>* fields = iklass->fields(); 1536 if (index < 0 || index > fields->length()) { 1537 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 1538 err_msg("Field index %d out of bounds for %s", index, klass->external_name())); 1539 } 1540 fieldDescriptor fd(iklass, index); 1541 oop reflected = Reflection::new_field(&fd, CHECK_NULL); 1542 return JNIHandles::make_local(env, reflected); 1543 } 1544 1545 #define CC (char*) /*cast a literal from (const char*)*/ 1546 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f)) 1547 1548 #define STRING "Ljava/lang/String;" 1549 #define OBJECT "Ljava/lang/Object;" 1550 #define CLASS "Ljava/lang/Class;" 1551 #define EXECUTABLE "Ljava/lang/reflect/Executable;" 1552 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;" 1553 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;" 1554 #define TARGET_DESCRIPTION "Ljdk/vm/ci/code/TargetDescription;" 1555 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;" 1556 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;" 1557 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;" 1558 #define HS_RESOLVED_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;" 1559 #define HS_RESOLVED_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;" 1560 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;" 1561 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;" 1562 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;" 1563 #define HS_METADATA "Ljdk/vm/ci/hotspot/HotSpotMetaData;" 1564 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;" 1565 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;" 1566 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;" 1567 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;" 1568 #define METASPACE_METHOD_DATA "J" 1569 1570 JNINativeMethod CompilerToVM::methods[] = { 1571 {CC "getBytecode", CC "(" HS_RESOLVED_METHOD ")[B", FN_PTR(getBytecode)}, 1572 {CC "getExceptionTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getExceptionTableStart)}, 1573 {CC "getExceptionTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getExceptionTableLength)}, 1574 {CC "findUniqueConcreteMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD, FN_PTR(findUniqueConcreteMethod)}, 1575 {CC "getImplementor", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS, FN_PTR(getImplementor)}, 1576 {CC "getStackTraceElement", CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)}, 1577 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)}, 1578 {CC "setNotInlinableOrCompilable", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(setNotInlinableOrCompilable)}, 1579 {CC "isCompilable", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(isCompilable)}, 1580 {CC "hasNeverInlineDirective", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(hasNeverInlineDirective)}, 1581 {CC "shouldInlineMethod", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(shouldInlineMethod)}, 1582 {CC "lookupType", CC "(" STRING CLASS "Z)" HS_RESOLVED_KLASS, FN_PTR(lookupType)}, 1583 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupNameInPool)}, 1584 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupNameAndTypeRefIndexInPool)}, 1585 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupSignatureInPool)}, 1586 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupKlassRefIndexInPool)}, 1587 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)}, 1588 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL "I)" OBJECT, FN_PTR(lookupAppendixInPool)}, 1589 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD, FN_PTR(lookupMethodInPool)}, 1590 {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)}, 1591 {CC "resolveConstantInPool", CC "(" HS_CONSTANT_POOL "I)" OBJECT, FN_PTR(resolveConstantInPool)}, 1592 {CC "resolvePossiblyCachedConstantInPool", CC "(" HS_CONSTANT_POOL "I)" OBJECT, FN_PTR(resolvePossiblyCachedConstantInPool)}, 1593 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS, FN_PTR(resolveTypeInPool)}, 1594 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[I)" HS_RESOLVED_KLASS, FN_PTR(resolveFieldInPool)}, 1595 {CC "resolveInvokeDynamicInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeDynamicInPool)}, 1596 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeHandleInPool)}, 1597 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(isResolvedInvokeHandleInPool)}, 1598 {CC "resolveMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)}, 1599 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)}, 1600 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I", FN_PTR(getVtableIndexForInterfaceMethod)}, 1601 {CC "getClassInitializer", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(getClassInitializer)}, 1602 {CC "hasFinalizableSubclass", CC "(" HS_RESOLVED_KLASS ")Z", FN_PTR(hasFinalizableSubclass)}, 1603 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)}, 1604 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_RESOLVED_METHOD, FN_PTR(asResolvedJavaMethod)}, 1605 {CC "getResolvedJavaMethod", CC "(Ljava/lang/Object;J)" HS_RESOLVED_METHOD, FN_PTR(getResolvedJavaMethod)}, 1606 {CC "getConstantPool", CC "(Ljava/lang/Object;)" HS_CONSTANT_POOL, FN_PTR(getConstantPool)}, 1607 {CC "getResolvedJavaType", CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS, FN_PTR(getResolvedJavaType)}, 1608 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)}, 1609 {CC "installCode", CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE HS_SPECULATION_LOG ")I", FN_PTR(installCode)}, 1610 {CC "getMetadata", CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA ")I", FN_PTR(getMetadata)}, 1611 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)}, 1612 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)}, 1613 {CC "executeInstalledCode", CC "([" OBJECT INSTALLED_CODE ")" OBJECT, FN_PTR(executeInstalledCode)}, 1614 {CC "getLineNumberTable", CC "(" HS_RESOLVED_METHOD ")[J", FN_PTR(getLineNumberTable)}, 1615 {CC "getLocalVariableTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getLocalVariableTableStart)}, 1616 {CC "getLocalVariableTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getLocalVariableTableLength)}, 1617 {CC "reprofile", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(reprofile)}, 1618 {CC "invalidateInstalledCode", CC "(" INSTALLED_CODE ")V", FN_PTR(invalidateInstalledCode)}, 1619 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)}, 1620 {CC "allocateCompileId", CC "(" HS_RESOLVED_METHOD "I)I", FN_PTR(allocateCompileId)}, 1621 {CC "isMature", CC "(" METASPACE_METHOD_DATA ")Z", FN_PTR(isMature)}, 1622 {CC "hasCompiledCodeForOSR", CC "(" HS_RESOLVED_METHOD "II)Z", FN_PTR(hasCompiledCodeForOSR)}, 1623 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)}, 1624 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)}, 1625 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)}, 1626 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)}, 1627 {CC "writeDebugOutput", CC "([BII)V", FN_PTR(writeDebugOutput)}, 1628 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)}, 1629 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)}, 1630 {CC "getFingerprint", CC "(J)J", FN_PTR(getFingerprint)}, 1631 {CC "getHostClass", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS, FN_PTR(getHostClass)}, 1632 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)}, 1633 {CC "compileToBytecode", CC "(" OBJECT ")V", FN_PTR(compileToBytecode)}, 1634 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)}, 1635 {CC "asReflectionExecutable", CC "(" HS_RESOLVED_METHOD ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)}, 1636 {CC "asReflectionField", CC "(" HS_RESOLVED_KLASS "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)}, 1637 }; 1638 1639 int CompilerToVM::methods_count() { 1640 return sizeof(methods) / sizeof(JNINativeMethod); 1641 }